Front plate, solar glass curtain wall and preparation method thereof
Technical Field
The application relates to the technical field of solar energy, in particular to a front plate, a solar glass curtain wall and a preparation method of the front plate and the solar glass curtain wall.
Background
Solar energy is an inexhaustible energy source and is a recognized clean energy source all over the world. BIPV (building Integrated Photo voltaic) is a technology for integrating solar power (photovoltaic) products into buildings, namely a photovoltaic building integration technology. The photovoltaic curtain wall is a specific application of a photovoltaic building integration technology, belongs to integration of a photovoltaic square matrix and a building, is a high-tech curtain wall product, integrates some basic characteristics of the curtain wall, has a power generation function, can directly utilize sunlight to generate power, and has the advantages of being green, pollution-free and free of generating any greenhouse gas.
At present, in the prior art, the color and the pattern of a front plate are changed by printing the front plate of the photovoltaic curtain wall, or the color of a packaging adhesive film is changed, and a solar chip is scribed by laser to achieve the aim of decorating the photovoltaic curtain wall. However, the printing on the front plate, especially the glass of the front plate, is relatively difficult, and the effect generally has only patterns without colors; the light transmittance is sacrificed to different degrees by changing the colors of the front plate and the packaging adhesive film, so that the power generation efficiency is influenced. Therefore, the solar module patterns obtained by the methods have poor aesthetic and three-dimensional properties, are difficult to simultaneously consider colors and patterns, lack artistic and beautifying functions, and simultaneously reduce the power generation efficiency.
Disclosure of Invention
The application provides a front plate, a solar glass curtain wall and a corresponding preparation method thereof, and aims to solve the problem of poor decoration of a solar assembly.
The application provides a preparation method of a front plate, which comprises the following steps:
providing a substrate layer of a front plate of the solar glass curtain wall;
providing a bonding layer of a front plate of the solar glass curtain wall;
providing a colorful three-dimensional pattern layer of a front plate of the solar glass curtain wall;
the method comprises the following steps that a substrate layer of the solar glass curtain wall front plate, a bonding layer of the solar glass curtain wall front plate and a color three-dimensional pattern layer of the solar glass curtain wall front plate are sequentially placed to form a laminated structure and are bonded.
Optionally, the substrate layer of the front plate of the solar glass curtain wall is ultra-white tempered float glass.
Optionally, the bonding layer of the front panel of the solar glass curtain wall comprises at least one of the following: polyvinyl butyral, polyurethane, thermoplastic polyolefins, ethylene-vinyl acetate copolymer, and ethylene-butylene polymer.
Optionally, the color three-dimensional pattern layer of the front plate of the solar glass curtain wall is a polymer film processed by a laser process, and the color three-dimensional pattern layer comprises at least one of the following components: a biaxial stretching polypropylene laser film, a polyvinyl chloride laser film and a polyethylene terephthalate laser film.
The application further provides a preparation method of the solar glass curtain wall, which comprises the following steps:
providing a front plate of a solar glass curtain wall containing a colorful three-dimensional pattern layer;
providing a first bonding layer and a second bonding layer of the solar glass curtain wall;
providing a photovoltaic chip of the solar glass curtain wall;
providing a back plate of the solar glass curtain wall;
sequentially placing a front plate of the solar glass curtain wall containing the colorful three-dimensional pattern layer, a first bonding layer of the solar glass curtain wall, a photovoltaic chip of the solar glass curtain wall, a second bonding layer of the solar glass curtain wall and a back plate of the solar glass curtain wall to form a laminated structure; one side of the color three-dimensional pattern layer of the front plate faces the first bonding layer;
and carrying out step-by-step lamination on the laminated structure by adopting step-by-step gradual temperature rise and pressurization.
Optionally, the front plate of the solar glass curtain wall with the color three-dimensional pattern layer is prepared by the preparation method of the front plate.
Optionally, the first bonding layer and the second bonding layer comprise at least one of: polyvinyl butyral, polyurethane, thermoplastic polyolefins, ethylene-vinyl acetate copolymer, and ethylene-butylene polymer.
Optionally, the photovoltaic chip of the solar glass curtain wall includes at least one of the following: copper indium gallium selenide solar cells, gallium arsenide solar cells, cadmium telluride solar cells, amorphous/single crystal heterojunction solar cells, amorphous silicon thin film solar cells, single crystal silicon solar cells, polycrystalline silicon solar cells.
Optionally, the back plate of the solar glass curtain wall comprises at least one of the following: glass, stainless steel, alloys.
The present application also provides a front plate prepared according to the method for preparing a front plate, comprising: the solar glass curtain wall comprises a base material layer of a solar glass curtain wall front plate, a bonding layer of the solar glass curtain wall front plate and a colorful three-dimensional pattern layer of the solar glass curtain wall front plate which are sequentially placed.
The application also provides a solar glass curtain wall prepared by the solar glass curtain wall preparation method, which comprises the following steps: the solar glass curtain wall comprises a front plate of the solar glass curtain wall, a first bonding layer of the solar glass curtain wall, a photovoltaic chip of the solar glass curtain wall, a second bonding layer of the solar glass curtain wall and a back plate of the solar glass curtain wall, wherein the front plate and the first bonding layer of the solar glass curtain wall are sequentially arranged.
Compared with the prior art, the method has the following advantages:
the application provides a preparation method of a front plate, which comprises the following steps: providing a substrate layer of a front plate of the solar glass curtain wall; providing a bonding layer of a front plate of the solar glass curtain wall; providing a colorful three-dimensional pattern layer of a front plate of the solar glass curtain wall; the method comprises the following steps that a substrate layer of the solar glass curtain wall front plate, a bonding layer of the solar glass curtain wall front plate and a color three-dimensional pattern layer of the solar glass curtain wall front plate are sequentially placed to form a laminated structure and are bonded. The front plate of the solar glass curtain wall prepared by the colorful three-dimensional pattern layer has good light transmission, is convenient to manufacture and easy to realize, can be used for all products with decorative requirements on appearance, and has wide market prospect.
Drawings
Fig. 1 is a flowchart of a method for manufacturing a 3-layer front plate according to this embodiment.
Fig. 2 is a schematic structural diagram of a 3-layer front plate provided in this embodiment.
Fig. 3 is a flowchart of a method for manufacturing a 5-layer solar glass curtain wall according to this embodiment.
Fig. 4 is a schematic structural diagram of a 5-layer solar glass curtain wall provided in this embodiment.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of implementation in many different ways than those herein set forth and of similar import by those skilled in the art without departing from the spirit of this application and is therefore not limited to the specific implementations disclosed below.
Example one
Fig. 1 is a flow chart illustrating a method for manufacturing a 3-layer front plate according to an embodiment of the present disclosure.
The following will describe and explain in detail the method for manufacturing the 3-layer front sheet provided in the present application by way of specific examples.
As shown in fig. 1, the 3-layer front plate is prepared as follows:
and S101, providing a substrate layer of the front plate of the solar glass curtain wall.
The substrate layer of the front plate of the solar glass curtain wall is made of ultra-white toughened float glass. In the embodiment, the ultra-white tempered float glass is used as the substrate layer of the front plate of the solar glass curtain wall. The ultra-white glass is ultra-transparent low-iron glass, also called low-iron glass and high-transparency glass. The ultra-white float glass is a novel high-grade glass variety with high quality and multiple functions, the light transmittance can reach more than 91.5 percent, the ultra-white float glass selected in the embodiment has all the processing performances of high-quality float glass, has excellent physical, mechanical and optical performances, and can be subjected to various deep processing like other high-quality float glass. Such as tempering, film coating, colored glaze, hot bending, adhesive clamping, hollow assembly and the like. As a substrate layer of the front plate of the solar glass curtain wall, when the front plate of the solar glass curtain wall containing the colorful three-dimensional pattern layer is prepared, the colorful three-dimensional pattern layer and the ultra-white toughened float glass as the substrate layer need to be bonded and display the colorful three-dimensional pattern, and obviously, the ultra-white toughened float glass with excellent light transmittance performance is a better choice for the front plate substrate layer of the solar glass curtain wall.
And S102, providing a bonding layer of the front plate of the solar glass curtain wall.
The bonding layer of the front plate of the solar glass curtain wall comprises at least one of the following components: polyvinyl butyral, polyurethane, thermoplastic polyolefins, ethylene-vinyl acetate copolymer, and ethylene-butylene polymer.
In this embodiment, since the substrate layer of the front panel of the solar glass curtain wall is made of ultra-white tempered float glass, the adhesive layer of the front panel of the solar glass curtain wall is made of ethylene-vinyl acetate copolymer (EVA). EVA is a material with high transparency and high adhesion, is suitable for bonding various interfaces including glass, metal and plastics such as PET and the like as an adhesive layer, has the advantages of no influence of humidity and water-absorbing films on the adhesion, high-temperature resistance, moisture resistance, ultraviolet resistance and good sound insulation effect, has low melting point and easy flowing property, and is particularly suitable for the glue inclusion process of various glass such as patterned glass, toughened glass, bent glass and the like.
And step S103, providing a colorful three-dimensional pattern layer of the front plate of the solar glass curtain wall.
The colored three-dimensional pattern layer of the front plate of the solar glass curtain wall is a polymer film processed by a laser process, and comprises at least one of the following components: a biaxial stretching polypropylene laser film, a polyvinyl chloride laser film and a polyethylene terephthalate laser film.
The colorful three-dimensional pattern layer arranged in the front plate of the solar glass curtain wall adopts an easily purchased and cheaper laser film, the laser film has gorgeous colors and patterns which can be designed, and better three-dimensional effects can be presented at different angles. In order to ensure good light transmittance, the color three-dimensional pattern layer in this embodiment is made of a polyethylene terephthalate laser film (PET-based laser transparent film). The PET-based laser transparent film is a polymer film processed by a laser process, the laser process is to utilize a laser light source to record light wave amplitude information and corresponding information simultaneously in a very short time, each mass point forming an image is reflected by utilizing the interference principle of light to manufacture a colored three-dimensional pattern, the specific technology is to adopt design technologies such as a computer dot matrix photoetching technology, a 3D color holographic technology, a multiple and dynamic imaging technology and the like, the designed pattern is gorgeous, three-dimensional patterns with different colors are presented at different observation angles, and the pattern can be designed according to own favor. It should be noted that, in addition to the laser transparent film, the laser film may also be a laser dielectric film, a laser aluminum-plated film, a laser aluminum-washed film, a laser rainbow film, or a laser transfer film. Above-mentioned when setting up the polymer laser film that will have colored stereoeffect in the front bezel, whole decorative effect is good to can keep the good light transmissivity of front bezel. Meanwhile, the production process of the polymer laser film is relatively mature, the cost of the polymer laser film is low, and the polymer laser film has a wide application prospect in photovoltaic modules.
And S104, sequentially placing the substrate layer of the front plate of the solar glass curtain wall, the bonding layer of the front plate of the solar glass curtain wall and the colorful three-dimensional pattern layer of the front plate of the solar glass curtain wall to form a laminated structure and bonding.
In this implementation, will the substrate layer of solar energy glass curtain wall front bezel, the tie coat of solar energy glass curtain wall front bezel, the process that the colored three-dimensional pattern layer of solar energy glass curtain wall front bezel placed in proper order and formed the laminated structure and bond can be with the substrate layer of solar energy glass curtain wall front bezel, the tie coat of solar energy glass curtain wall front bezel, the colored three-dimensional pattern layer top-down of solar energy glass curtain wall front bezel stacks and forms the laminated structure, later bonds the laminated structure.
It should be noted that the technical solution of the present embodiment is generally applied to the selection of the material of the substrate layer of the solar glass curtain wall front plate, the bonding layer of the solar glass curtain wall front plate, and the material of the color three-dimensional pattern layer of the solar glass curtain wall front plate, but the application field is not limited thereto, and other materials that are suitable for the material of the substrate layer of the solar glass curtain wall front plate, the bonding layer of the solar glass curtain wall front plate, and the material of the color three-dimensional pattern layer of the solar glass curtain wall front plate may also be applied to the technical solution, so as to obtain the same beneficial effects.
In the above embodiments, a method for preparing a 3-layer front plate is provided, and correspondingly, a 3-layer front plate is also provided. Fig. 2 is a schematic structural diagram of a 3-layer front panel according to the present application.
A 3-layer front panel prepared according to the above steps S101-S104, comprising: the solar glass curtain wall comprises a base material layer 101-1 of a front plate of a solar glass curtain wall, a bonding layer 101-2 of the front plate of the solar glass curtain wall and a colorful three-dimensional pattern layer 101-3 of the front plate of the solar glass curtain wall which are sequentially arranged.
In the first embodiment, a method for preparing a 3-layer front plate and a 3-layer front plate prepared by the method are provided. The application also provides a preparation method for preparing a solar glass curtain wall with 5 layers by using the front plate, which is a flow chart of the preparation method for the solar glass curtain wall with 5 layers as shown in fig. 3.
Example two
Referring to fig. 3, it shows a flow chart of a method for manufacturing a 5-layer solar glass curtain wall according to an embodiment of the present application.
The following will describe and explain in detail the method for manufacturing the 5-layer solar glass curtain wall provided by the present application by using specific examples.
As shown in fig. 3, the preparation method of the 5-layer solar glass curtain wall is as follows:
step S301, providing a front plate of the solar glass curtain wall with the colorful three-dimensional pattern layer.
The step of providing the front plate of the solar glass curtain wall with the color three-dimensional pattern layer is to directly use the 3 layers of front plates prepared in the first embodiment, and the preparation process of the 3 layers of front plates is described in detail in the first embodiment, and is not described herein again.
Step S302, a first bonding layer and a second bonding layer of the solar glass curtain wall are provided.
The first and second bonding layers comprise at least one of: polyvinyl butyral, polyurethane, thermoplastic polyolefins, ethylene-vinyl acetate copolymer, and ethylene-butylene polymer.
In this embodiment, the adhesive layer of the front panel of the solar glass curtain wall is ethylene-vinyl acetate copolymer (EVA), so that the first adhesive layer and the second adhesive layer of the solar glass curtain wall are both made of ethylene-vinyl acetate copolymer (EVA) to match the adhesive layer of the front panel of the solar glass curtain wall, and the EVA is a material with high transparency and high adhesive force, and is suitable for bonding various interfaces including glass, metal, and plastics such as PET as the adhesive layer, and the adhesive force is not affected by humidity and water-absorbing films, and has excellent properties of high temperature resistance, moisture resistance, ultraviolet resistance, and good sound insulation effect. In addition, when the EVA is used as the first bonding layer and the second bonding layer of the solar glass curtain wall, edge sealant is used in a matched mode, so that the waterproofness of the solar glass curtain wall is enhanced.
And step S303, providing a photovoltaic chip of the solar glass curtain wall.
The photovoltaic chip of the solar glass curtain wall comprises at least one of the following components: copper indium gallium selenide solar cells, gallium arsenide solar cells, cadmium telluride solar cells, amorphous/single crystal heterojunction solar cells, amorphous silicon thin film solar cells, single crystal silicon solar cells, polycrystalline silicon solar cells.
And step S304, providing a back plate of the solar glass curtain wall.
The back plate of the solar glass curtain wall comprises at least one of the following components: glass, stainless steel, alloys.
In this embodiment, glass is selected as the back plate of the solar glass curtain wall. Because the substrate layer of solar energy glass curtain wall front bezel is super white tempering float glass, therefore the substrate layer of glass in order to match solar energy glass curtain wall front bezel is selected for use to the backplate of solar energy glass curtain wall.
S305, sequentially placing a front plate of the solar glass curtain wall with the colorful three-dimensional pattern layer, a first bonding layer of the solar glass curtain wall, a photovoltaic chip of the solar glass curtain wall, a second bonding layer of the solar glass curtain wall and a back plate of the solar glass curtain wall to form a laminated structure; wherein, the colorful three-dimensional pattern layer side of the front plate faces the first bonding layer.
In this implementation, the front plate of the solar glass curtain wall with the colorful three-dimensional pattern layer, the first bonding layer of the solar glass curtain wall, the photovoltaic chip of the solar glass curtain wall, the second bonding layer of the solar glass curtain wall and the back plate of the solar glass curtain wall are sequentially placed to form a laminated structure, the front plate of the solar glass curtain wall with the colorful three-dimensional pattern layer, the first bonding layer of the solar glass curtain wall, the photovoltaic chip of the solar glass curtain wall, the second bonding layer of the solar glass curtain wall and the back plate of the solar glass curtain wall are stacked from top to bottom to form the laminated structure, wherein when the front plate is placed, one side of the colorful three-dimensional pattern layer of the front plate faces the first bonding layer.
And step S306, gradually heating and pressurizing the laminated structure in stages to perform step-by-step lamination.
In the embodiment, the laminated structure is laminated step by gradually raising the temperature and pressurizing step by step, and the laminating process step by step is a process means of multiple times of lamination, wherein the temperature and pressure of lamination are gradually raised along with the increase of the number of times of lamination in the lamination process, so that the lamination of the laminated structure is firm, and meanwhile, bubbles between layers can be well discharged by adopting the process, and the yield of the obtained solar glass curtain wall is high.
This application adopts simple compound mode, combines together laser film and solar energy glass curtain wall's front bezel, has obtained a decorative effect and the good front bezel of printing opacity, also provides a photovoltaic module who presents colored solid pattern simultaneously, when specifically choosing colored solid pattern layer, can select different patterns according to actual need, has solved the poor problem of photovoltaic module aesthetic property effectively.
It should be noted that, the technical solution of this embodiment is generally used for selecting the materials of the first bonding layer and the second bonding layer, the photovoltaic chip and the back panel of the solar glass curtain wall, but the application field is not limited thereto, and other materials that are in line with the materials of the first bonding layer and the second bonding layer, the photovoltaic chip and the back panel of the solar glass curtain wall may also be used in this technical solution, so as to obtain the same beneficial effects.
In the embodiment, a preparation method of a 5-layer solar glass curtain wall is provided, and correspondingly, the application also provides a 5-layer solar glass curtain wall. Fig. 4 is a schematic structural diagram of a 5-layer solar glass curtain wall according to the present application.
A5-layer solar glass curtain wall prepared according to the steps S301-S306 comprises: the solar glass curtain wall comprises a front plate 101 of the solar glass curtain wall, a first bonding layer 102 of the solar glass curtain wall, a photovoltaic chip 103 of the solar glass curtain wall, a second bonding layer 104 of the solar glass curtain wall and a back plate 105 of the solar glass curtain wall, wherein the front plate and the first bonding layer are sequentially arranged.
Although the present application has been described with reference to the preferred embodiments, it is not intended to limit the present application, and those skilled in the art can make variations and modifications without departing from the spirit and scope of the present application, therefore, the scope of the present application should be determined by the claims that follow.