WO2019214059A1

WO2019214059A1 - Solar component and solar power generation device

Info

Publication number: WO2019214059A1
Application number: PCT/CN2018/095641
Authority: WO
Inventors: 隋凯; 杜志庆; 凌强; 杨世忠
Original assignee: 北京汉能光伏投资有限公司
Priority date: 2018-05-08
Filing date: 2018-07-13
Publication date: 2019-11-14
Also published as: CN208045521U

Abstract

A solar component and a solar power generation device. The solar component comprises a front light-transmitting layer, a first film layer and a battery chip layer which are provided in sequence, and the front light-transmitting layer comprises a base and a color film layer which are located on the surface of the base. The solar power generation device includes the solar component.

Description

Solar modules and solar power plants

Technical field

The present disclosure relates to, but is not limited to, the field of solar power generation technology, and in particular to a solar module and a solar power generation device.

Background technique

The solar curtain wall is a high-tech product. It not only integrates some basic characteristics of the curtain wall but also has the function of generating electricity. It is a new type of curtain wall that combines power generation, sound insulation, heat insulation, safety and decoration functions. The solar photovoltaic curtain wall can directly use sunlight to generate electricity, and the green is pollution-free and does not produce any greenhouse gases.

Limited by the color of conventional solar modules, the external appearance of the solar curtain wall is pure black, and the color is monotonous, which is not conducive to the appearance of the building.

Summary of the invention

At least one embodiment of the present disclosure provides a solar module comprising a front light transmissive layer, a first film layer and a battery chip layer disposed in sequence, the front light transmissive layer comprising a substrate and a color film layer on the surface of the substrate.

In an exemplary embodiment, the solar module further includes an optical anti-reflection film disposed on a side surface of the front light-transmitting layer away from the first film layer.

In an exemplary embodiment, the color film layer is disposed on a side surface of the substrate that is away from the first film layer.

In an exemplary embodiment, the color film layer is disposed on a side surface of the substrate adjacent to the first film layer.

In an exemplary embodiment, the color film layer is disposed on both side surfaces of the substrate.

In an exemplary embodiment, the color film layer comprises a monochromatic film layer or a multi-color film layer.

In an exemplary embodiment, the substrate comprises a polymeric material matrix or a glass matrix.

In an exemplary embodiment, the first film layer includes any one or more of a colorless film layer, a color film layer, a sound insulating film layer, and an atomized film layer.

In an exemplary embodiment, the first film layer has a thickness of 1 mm to 2 mm.

In an exemplary embodiment, the solar module further includes a second film layer and a back sheet layer disposed in a direction away from the battery chip layer on a side of the battery chip layer away from the first film layer.

In an exemplary embodiment, the solar module further includes a junction box disposed to be electrically connected to the battery chip layer.

At least one embodiment of the present disclosure provides a solar power generating apparatus including the solar module described above.

Since the front light-transmitting layer of the solar module is provided with a color film layer, the solar module can exhibit color, thereby making the solar power generating device including the solar module more excellent in appearance, and more suitable for buildings having high appearance performance requirements.

DRAWINGS

1 is a front view of a solar module according to an embodiment of the present disclosure;

2 is a side view showing the solar module shown in FIG. 1;

3 is a side view showing a solar module according to another embodiment of the present disclosure;

4 is a side elevational view of a solar module in accordance with yet another embodiment of the present disclosure.

The correspondence between the reference numerals and the components in FIGS. 1 to 4 is:

10 solar module, 1 front light transmission layer, 101 base body, 102 color film layer, 7 optical anti-reflection film, 2 first film layer, 21 color film layer, 22 colorless film layer, 4 battery chip layer, 5 back sheet layer , 6 second film layer.

detailed description

Embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments in the present disclosure and the features in the embodiments may be arbitrarily combined with each other without conflict.

In view of the defects of the conventional solar module, the embodiment of the present disclosure provides a solar module, which is rich in color, high in strength and reliability, and has a wide application range, and can be applied not only to a general building facade but also to a wide range of applications. The decoration of the building maintains the structural parts.

The solar module and solar power generation device of the present disclosure are explained below in conjunction with the embodiments.

As shown in FIG. 1 and FIG. 2, an embodiment of the present disclosure provides a solar module 10 including a front light transmissive layer 1, a first film layer 2, and a battery chip layer 4, which are sequentially disposed, and the front light transmissive layer 1 includes a substrate. 101 and a color film layer 102 on the surface of the substrate 101.

When solar light is incident from the front light-transmitting layer 1, the battery chip layer 4 of the solar module 10 converts solar energy into electrical energy.

The front light-transmissive layer 1 is provided with a color film layer 102, so that the solar module 10 can be colored, and the overall appearance is beautiful, and the solar power generation device including the solar module 10 has various colors and decorative effects, so that the solar power generation device is The appearance performance is better, and it is more suitable for buildings with high requirements on appearance performance, which helps to promote the application of solar curtain walls in a wider range. In addition, since the front light-transmissive layer 1 is provided with the color film layer 102, the radiation transfer process of the solar heat can be reduced, so that the solar curtain wall including the solar module 10 can block a part of heat outside, and perform heat insulation.

In the example shown in FIGS. 1 and 2, the base 101 of the front light-transmitting layer 1 may be a glass substrate, such as a tempered glass substrate, and the color film layer 102 is disposed on a side surface of the tempered glass substrate adjacent to the first film layer 2. . Specifically, the strength of the tempered glass substrate is high, and the strength of the solar module 10 can be ensured, thereby ensuring the safety performance of the solar curtain wall.

Of course, the base 101 of the front transparent layer 1 may also be a polymer material substrate, and the color film layer 102 is disposed on a side surface of the polymer material substrate adjacent to the first film layer 2. The material of the polymer material substrate may be PMMA (polymethyl methacrylate) or PC (polycarbonate).

As shown in FIG. 2, in an exemplary embodiment of the present disclosure, the color film layer 102 is disposed on a side surface of the substrate 101 adjacent to the first film layer 2. The design makes it possible to effectively avoid the problems of fading, falling off, and the like of the color film layer caused by the exposure of the color film layer, so that the color of the solar module 10 is bright and durable.

In another exemplary embodiment of the present disclosure, the color film layer may also be disposed on a side surface of the substrate 101 away from the first film layer 2.

In still another exemplary embodiment of the present disclosure, a color film layer may also be disposed on both side surfaces of the base 101.

The color film layer 102 of the front light-transmitting layer 1 may be a single color film layer having a single color or a multi-color film layer having a plurality of colors. In the process of forming the multicolor film layer, the substrate 101 may be partitioned, and the adhesion of the respective color film layers may be performed in each of the regions.

As shown in FIG. 2, the solar module may further include: an optical anti-reflection film 7 disposed on a surface of the front light-transmitting layer 1 away from the first film layer 2, that is, the sun light passes through the optical anti-reflection film 7 and is injected into the front surface. Light layer 1. The optical anti-reflection film 7 can reduce the reflection of sunlight on the front light-transmitting layer 1, so that more sunlight can be transmitted to the battery chip layer 4, which is advantageous for increasing the power generation of the solar module 10.

The first film layer 2 may be any one of a colorless film layer, a color film layer, a sound insulating film layer and an atomized film layer, or the first film layer 2 is a colorless film layer, a color film layer, and a sound insulating film layer. And a composite structure formed of at least two of the atomized film layers. Among them, the colorless film layer has a high transmittance; the color film layer is a color transparent film layer, which has a certain decorative effect; the sound insulating film layer is a transparent film layer, which has a good sound insulation effect; the atomized film layer is fogged. Sanding effect.

In the example shown in Figures 1 and 2, the first film layer 2 is a colorless film layer. The first film layer 2 is disposed between the front light-transmitting layer 1 and the battery chip layer 4, and the front light-transmitting layer 1 and the battery chip layer 4 are joined together, which enhances the structural reliability of the solar module 10. In addition, both the front light-transmissive layer 1 and the first film layer 2 are transparent to transmit sunlight to the battery chip layer 4, thereby realizing the power generation function of the solar module 10.

In an exemplary embodiment of the present disclosure, the colorless film layer employs a colorless PVB (polyvinyl butyral) film layer.

The colorless PVB film layer has excellent heat resistance and corrosion resistance, and is more suitable for use on the exterior wall of the building; and the colorless PVB film layer has good light transmission performance, and does not block the battery chip layer 4 from absorbing and converting solar energy; The color PVB film layer has strong bonding ability, and the connection between the front light-transmitting layer 1 and the battery chip layer 4 is firm and reliable, and the structural strength and reliability of the solar module 10 as a whole are improved.

The color film layer, the sound-damping film layer, and the atomized film layer may be PVB film layers.

In some examples, as shown in FIG. 2, the solar module 10 further includes a second film layer 6 and a back sheet layer 5 disposed on the side of the battery chip layer 4 away from the first film layer 2, the second film layer 6 and the back The plies 5 are sequentially disposed in a direction away from the battery chip layer 4. The type of the second film layer 6 is not limited and may be a colorless film layer or a sound insulating film layer or the like. The backing layer 5 may be a transparent backing layer, for example, a tempered glass material, and the backing layer 5 may also be an opaque backing layer.

In other examples, the battery chip layer 4 is a glass-based solar cell chip layer, and the glass substrate of the glass-based solar cell chip layer can directly serve as the back side surface layer of the solar module 10, that is, the solar module 10 does not need to be provided with the second film layer. 6 and backing layer 5. The battery chip layer 4 may be of a light transmissive type or an opaque type.

In an exemplary embodiment of the present disclosure, the battery chip layer 4 is a solar thin film battery. The solar thin film battery has the advantages of small mass, extremely thin thickness, and bendability, so that the solar module 10 has a small thickness and a light weight, and is more suitable for forming a solar curtain wall.

The thickness of the first film layer 2 may be from 1 mm to 2 mm.

In one example, the front light transmissive layer 1 has a thickness of 6 mm, the first film layer 2 is a colorless PVB film layer having a thickness of 1.14 mm or 1.52 mm, and the battery chip layer 4 is made of glass-based CIGS (copper indium gallium selenide) solar energy. Thin film battery with a thickness of 3mm or 3.2mm.

In this example, a 1.14 mm or 1.52 mm thick colorless PVB film layer is selected as the first film layer 2, which has a strong bonding ability compared to a 0.76 mm thick PVB film in a conventional solar module, so that the strength of the solar module 10 is made. And increased reliability, which in turn makes the solar module 10 safer when applied to the curtain wall.

It should be understood that the thickness of the front light-transmitting layer 1, the first film layer 2, and the battery chip layer 4 is not limited to the above values. In the actual production application process, the front light-transmitting layer 1 and the first film layer may be adjusted according to actual needs. 2 and the thickness of the battery chip layer 4.

In an example, the solar module 10 can also include a junction box that is configured to be electrically coupled to the battery chip layer 4 to draw electricity generated by the battery chip layer 4 to an energy storage device or other powered device or the like.

Another embodiment of the present disclosure provides a solar module. As shown in FIG. 3, in the present embodiment, the first film layer 2 of the solar module 10 is a color film layer disposed between the front light-transmitting layer 1 and the battery chip layer 4.

After the color film layer is set, the colors of the color film layer and the color film layer 102 can be mixed to produce a mixed color, which can produce more colors, making the appearance of the solar module 10 more colorful. Further, according to the color mixing principle, various colors can be formed by several primary colors, so that the color selection of the color film layer and the color film layer 102 can be reduced.

The color film layer may be a single layer structure or a multi-layer structure, and each layer may include only one color film, or may include a plurality of color films of different colors arranged in a tile.

The color film layer can be a color PVB film layer.

The color PVB film is bright and has a variety of color choices, which makes the solar module 10 and the solar power device look more beautiful and more competitive. In addition, the PVB film has good adhesion to the glass, and is transparent and resistant. Heat, cold resistance, moisture resistance, weather resistance, yellowing resistance, high mechanical strength, reliability, and high safety.

As shown in FIG. 4, another embodiment of the present disclosure provides a solar module. In the present embodiment, the first film layer 2 includes a color film layer 21 and a colorless film layer 22 which are laminated. The color film layer 21 may be closer to the front light-transmissive layer 1 than the colorless film layer 22, or the color film layer 21 may be closer to the battery chip layer 4 than the colorless film layer 22.

In an exemplary embodiment, both the color film layer 21 and the colorless film layer 22 are PVB film layers.

The color film layer 21 may be a single layer structure or a multi-layer structure, and each layer may include only one color film, or may include a plurality of color films of different colors arranged in a tile.

It should be understood that the film of PVB material in the above embodiment, such as color PVB film or colorless PVB film, may be replaced by EVA (ethylene-vinyl acetate copolymer) film having a similar effect.

Embodiments of the present disclosure provide a solar power generating apparatus including the solar module described in at least one of the above embodiments. For example, the solar power generation device may include only the solar module described in any of the above embodiments, or the solar module described in any two embodiments, or the solar module described in the three embodiments.

The specific type of product of the solar power generation device is not limited, and may be a solar curtain wall, a solar roof or a solar tile or the like. Since the solar power generation device can exhibit a color appearance, on the one hand, the facade effect of the building is enriched, and on the other hand, the heat can be blocked outdoors, and the heat insulation effect can be achieved.

In the present disclosure, the term "multiple" means two or more.

The above embodiments are merely illustrative of several embodiments of the present disclosure, and the description thereof is intended to be illustrative and not restrictive. Any modification or variation in the form and details of the implementation may be made by those skilled in the art without departing from the spirit and scope of the disclosure. It is subject to the definition of the appended claims.

Claims

A solar module comprising a front light transmissive layer, a first film layer and a battery chip layer disposed in sequence, the front light transmissive layer comprising a substrate and a color film layer on a surface of the substrate.
The solar module of claim 1 wherein: said solar module further comprises an optical anti-reflection film disposed on a side surface of said front light transmissive layer remote from said first film layer.
The solar module of claim 1 wherein:

The color film layer is disposed on a side surface of the substrate away from the first film layer; or

The color film layer is disposed on a side surface of the substrate adjacent to the first film layer; or

The color film layer is disposed on both side surfaces of the substrate.
The solar module of claim 1 wherein: said color film layer comprises a monochromatic film layer or a multi-color film layer.
A solar module according to any one of claims 1 to 4, wherein the substrate comprises a polymer material matrix or a glass substrate.
A solar module according to any one of claims 1 to 4, wherein: said first film layer comprises any one or more of a colorless film layer, a color film layer, a sound insulating film layer and an atomized film layer.
A solar module according to any one of claims 1 to 4, wherein: said first film layer has a thickness of from 1 mm to 2 mm.
A solar module according to any one of claims 1 to 4, further comprising a second film layer and a back disposed in a direction away from the battery chip layer on a side of the battery chip layer away from the first film layer Plate layer.
A solar module according to any one of claims 1 to 4, further comprising a junction box disposed to be electrically connected to the battery chip layer.
A solar power plant comprising the solar module of any of claims 1-9.