CN111391457A - Front plate of solar cell module, solar cell module and preparation method of solar cell module - Google Patents

Front plate of solar cell module, solar cell module and preparation method of solar cell module Download PDF

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Publication number
CN111391457A
CN111391457A CN201811627743.6A CN201811627743A CN111391457A CN 111391457 A CN111391457 A CN 111391457A CN 201811627743 A CN201811627743 A CN 201811627743A CN 111391457 A CN111391457 A CN 111391457A
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China
Prior art keywords
solar cell
light
film
cell module
front plate
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CN201811627743.6A
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Chinese (zh)
Inventor
张庆辉
刘国强
张群芳
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Dongjun New Energy Co ltd
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Hanergy Mobile Energy Holdings Group Co Ltd
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Priority to CN201811627743.6A priority Critical patent/CN111391457A/en
Publication of CN111391457A publication Critical patent/CN111391457A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
    • H01L31/042—PV modules or arrays of single PV cells
    • H01L31/048—Encapsulation of modules
    • H01L31/0481—Encapsulation of modules characterised by the composition of the encapsulation material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B32B37/1207—Heat-activated adhesive
    • B32B2037/1215—Hot-melt adhesive
    • B32B2037/1223—Hot-melt adhesive film-shaped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2457/00—Electrical equipment
    • B32B2457/10—Batteries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2457/00—Electrical equipment
    • B32B2457/12—Photovoltaic modules
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Laminated Bodies (AREA)
  • Photovoltaic Devices (AREA)

Abstract

The embodiment of the invention relates to the field of solar power generation, in particular to a front plate of a solar cell module, the solar cell module and a preparation method thereof, wherein the front plate comprises: the light-transmitting film comprises a plurality of layers of light-transmitting films which are stacked in sequence, wherein each light-transmitting film is a fiber reinforced thermoplastic composite material film. Since the fiber-reinforced thermoplastic composite material can be molded by a mold after melting, the dimensional stability is high, for example, the fiber-reinforced thermoplastic composite material can be molded into a film, and then each film is molded into a front plate, since the film can be bent freely and the dimensional stability of the film is high, the dimensional stability of the front plate after the film is molded is also high, and the density of the fiber-reinforced thermoplastic composite material is generally about 1100-1200kg/m3, while the density of the glass is 2400-2800kg/m3, the fiber-reinforced thermoplastic composite material is generally lighter than the glass, so that the front plate in the embodiment is lighter than the front plate in the prior art.

Description

Front plate of solar cell module, solar cell module and preparation method of solar cell module
Technical Field
The embodiment of the invention relates to the field of solar power generation, in particular to a front plate of a solar cell module, the solar cell module and a preparation method of the solar cell module.
Background
Photovoltaic building integration battery pack: mainly refer to solar energy power generation window, the electricity generation wall, solar energy power generation products for buildings such as power generation tile, photovoltaic building integration battery pack generally includes the front bezel, with the relative base plate that sets up of front bezel and the solar cell who is located between front bezel and the base plate, in prior art, the material of front bezel generally is toughened glass, when photovoltaic building integration battery pack is the product that needs bending structure such as power generation tile, generally can adopt toughened glass to carry out the hot bending shaping, however, the toughened glass who adopts the hot bending shaping is as solar module's front bezel, then the cost of improvement solar module that can be very big.
Meanwhile, under the influence of the hot bending forming process of the glass, the dimensional stability of the glass during heating bending is low, and the glass is difficult to be laminated and formed by adopting a proper mould in the laminating process, so that the laminating efficiency of the hot bent glass is reduced. Furthermore, because the tempered glass has high density and low impact resistance, the thickness of the front plate generally needs to be increased, so that the weight of the photovoltaic building integrated battery assembly is increased, and the installation efficiency of the battery assembly is affected.
Disclosure of Invention
An object of an embodiment of the present invention is to provide a front plate of a solar cell module, and a method for manufacturing the same, which can increase the dimensional stability of the front plate and reduce the weight of the front plate.
In order to solve the above technical problem, an embodiment of the present invention provides a front plate of a solar cell module, the front plate including: the light-transmitting film comprises a plurality of layers of light-transmitting films which are stacked in sequence, wherein each light-transmitting film is made of a fiber reinforced thermoplastic composite material.
Compared with the prior art, the embodiment of the invention has the advantages that the front plate comprises: the plurality of layers of light-transmitting films are stacked in sequence, each film is made of a fiber-reinforced thermoplastic composite material, the fiber-reinforced thermoplastic composite material can be molded through a mold after being melted, so that the dimensional stability of the fiber-reinforced thermoplastic composite material is high, for example, the fiber-reinforced thermoplastic composite material can be molded into a film, then each film is molded into a front plate, the film can be bent freely, and the dimensional stability of the film is high, so that the dimensional stability of the front plate after the film is molded is also high, the density of the fiber-reinforced thermoplastic composite material is generally 1100-1200kg/m3, and the density of glass is 2400-2800kg/m3, so that the fiber-reinforced thermoplastic composite material is generally lighter than glass, and the front plate in the embodiment is lighter than the front plate in the prior art.
Additionally, the fiber reinforced thermoplastic composite includes: one or more of fiber reinforced polymethylmethacrylate and fiber reinforced polycarbonate.
In addition, the fiber is a light-transmitting glass fiber plain weave fabric. The light-transmitting glass fiber scrim is added to the organic compound, thereby increasing the strength of the organic compound.
In addition, the thickness of the light-transmitting film is 0.2mm to 0.4 mm.
In addition, the front plate further includes: and the waterproof layer is sandwiched between any two adjacent layers of the light-transmitting films, and the waterproof layer is glued with the light-transmitting films.
In addition, the waterproof layer is a toughened glass layer or a polyester waterproof layer.
In addition, the front plate further includes: the ultraviolet-resistant layer is arranged on the outer surface of the uppermost layer of the plurality of layers of the sequentially stacked transparent films.
In addition, the invention also provides a preparation method of the front plate of the solar cell module, which comprises the following steps:
sequentially stacking a plurality of layers of first light-transmitting films, a second adhesive film, a water-resisting layer, a third adhesive film and a plurality of layers of second light-transmitting films which are provided in advance according to a sequence from bottom to top to obtain a front plate spare part, wherein each of the first light-transmitting films and the second light-transmitting films is made of a fiber reinforced thermoplastic composite material; carrying out lamination molding on the front plate spare part;
and after the front plate spare part is subjected to lamination molding, spraying an ultraviolet-resistant layer on the outer surfaces of the uppermost layers of the plurality of layers of second light-transmitting films.
Because the front plate is formed by sequentially stacking a plurality of layers of light-transmitting films, and each film is a fiber-reinforced thermoplastic composite film, because the fiber-reinforced thermoplastic composite material can be molded through a mold after being melted, the dimensional stability of the front plate is very high, for example, the fiber-reinforced thermoplastic composite material can be molded into a film, and then the front plate is molded through each film, because the film can be bent at will and the dimensional stability of the film is very high, the dimensional stability of the front plate after the film molding is also very high, the density of the fiber-reinforced thermoplastic composite material is generally about 1100-1200kg/m3, and the density of the glass is 2400-2800kg/m3, the fiber-reinforced thermoplastic composite material is generally lighter than glass, so that the front plate in the embodiment is lighter than the front plate in the prior art, and the dimensional stability of the solar cell module can be further enhanced, and the weight of the solar cell module can be reduced.
In addition, the present invention also provides a solar cell module including:
the solar cell module comprises a base plate, a first adhesive film, a solar cell, a second adhesive film and a front plate of the solar cell module, wherein the base plate, the first adhesive film, the solar cell and the second adhesive film are sequentially compounded from bottom to top.
Since the solar cell module includes the front plate, and the front plate includes: the plurality of layers of light-transmitting films are stacked in sequence, each film is a fiber-reinforced thermoplastic composite film, the fiber-reinforced thermoplastic composite material can be molded through a mold after being melted, so the dimensional stability of the film is high, for example, the fiber-reinforced thermoplastic composite material can be molded into a film, then each film is molded into a front plate, the film can be bent at will, and the dimensional stability of the film is high, so the dimensional stability of the front plate after the film is molded is also high, the density of the fiber-reinforced thermoplastic composite material is generally about 1100-1200kg/m3, and the density of the glass is about 2400-2800kg/m3, so the fiber-reinforced thermoplastic composite material is generally lighter than the glass, so the front plate in the embodiment is lighter than the front plate in the prior art, and the dimensional stability of the solar cell module can be enhanced, and the weight of the solar cell module can be reduced.
In addition, the invention also provides a preparation method of the solar cell module, which comprises the following steps:
sequentially stacking a substrate, a first adhesive film, a solar cell, a second adhesive film and the solar cell module front plate prepared by the method according to claim 8 to form a solar module spare part, wherein the sprayed ultraviolet-resistant layer of the front plate is arranged away from the substrate;
and carrying out lamination molding on the solar assembly spare part.
In addition, the invention also provides a preparation method of the solar cell module, which comprises the following steps:
sequentially stacking a substrate, a first adhesive film, a solar cell, a second adhesive film, a plurality of layers of first light-transmitting films, a fourth adhesive film, a water-resisting layer, a fifth adhesive film and a plurality of layers of second light-transmitting films which are provided in advance to form a solar module spare part; each first light-transmitting film and each second light-transmitting film are both fiber-reinforced thermoplastic composite materials;
and carrying out lamination molding on the solar assembly spare part.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.
Fig. 1 is a schematic structural view of a front panel without a water barrier layer according to a first embodiment of the present invention;
FIG. 2 is a schematic structural view of a tempered glass layer serving as a water separation layer in the front panel according to the first embodiment of the present invention;
FIG. 3 is a schematic view of the structure of the upper plate layer of FIG. 2;
FIG. 4 is a schematic structural view of a polyester-based water barrier layer as a water barrier layer in the front plate according to the first embodiment of the present invention;
FIG. 5 is a schematic structural view of a solar cell module according to a second embodiment of the present invention;
FIG. 6 is a schematic view showing the structure of a front plate spare part according to a third embodiment of the present invention;
fig. 7 is a flowchart of a method for manufacturing a front plate of a solar cell module according to a third embodiment of the present invention;
FIG. 8 is a schematic structural view of a solar cell module spare part according to a fourth embodiment of the present invention;
fig. 9 is a flowchart of a method of manufacturing a solar cell module according to a fourth embodiment of the present invention;
fig. 10 is a schematic structural view of a solar cell module spare part according to a fifth embodiment of the present invention;
fig. 11 is a flowchart of a method of manufacturing a solar cell module in the fifth embodiment of the present invention.
Description of reference numerals:
first and second embodiments: 1. a light-transmitting film; 2. a tempered glass layer; 3. a polyester water-barrier layer; 4. an anti-violet layer; 5. an upper ply; 6. a lower board layer; 7. a front plate; 8. a solar cell; 9. a substrate;
the third embodiment: 11. a first light-transmitting film; 12. a second adhesive film; 13. a water barrier layer; 14. a third adhesive film; 15. a second light-transmitting film;
the fourth embodiment: 16. a substrate; 17. a first adhesive film; 18. a solar cell; 19. a second adhesive film; 20. a front plate;
fifth embodiment: 21. a substrate; 22. a first adhesive film; 23. a solar cell; 24. a second adhesive film; 25. a first light-transmitting film; 26. a fourth adhesive film; 27. a water barrier layer; 28. a fifth glue film; 29. a second light-transmitting film.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that numerous technical details are set forth in order to provide a better understanding of the present application in various embodiments of the present invention. However, the technical solution claimed in the present application can be implemented without these technical details and various changes and modifications based on the following embodiments.
A first embodiment of the present invention relates to a front plate of a solar cell module, as shown in fig. 1, the front plate including: the light-transmitting films 1 are stacked in sequence, and each light-transmitting film 1 is a film made of a fiber-reinforced thermoplastic composite material, that is, each light-transmitting film 1 is a fiber-reinforced thermoplastic composite material film, specifically, the thickness of the fiber-reinforced thermoplastic composite material film can be 0.2mm to 0.4mm, and naturally, in an actual situation, the thickness of the fiber-reinforced thermoplastic composite material film can be correspondingly adjusted according to needs. Generally speaking, when the minimum thickness of the front plate is more than or equal to 2.5mm, the structural strength of the front plate can meet the requirement of photovoltaic building integration on the strength of the front plate material.
Compared with the prior art, the embodiment of the invention has the advantages that the front plate comprises: the plurality of layers of the light-transmitting films 1 are stacked in sequence, each film is a fiber-reinforced thermoplastic composite film, and the fiber-reinforced thermoplastic composite material can be molded through a mold after being melted, so that the dimensional stability of the fiber-reinforced thermoplastic composite material is high, for example, the fiber-reinforced thermoplastic composite material can be molded into a film, and then each film is molded into a front plate, because the film can be bent at will and the dimensional stability of the film is high, the dimensional stability of the front plate after the film is molded is also high, the density of the fiber-reinforced thermoplastic composite material is generally about 1100-1200kg/m3, and the density of the glass is 2400-2800kg/m3, so the fiber-reinforced thermoplastic composite material is generally lighter than the glass, and the front plate in the embodiment is lighter than the front plate in the prior art.
Specifically, the fiber-reinforced thermoplastic composite film is prepared from: a polymethyl methacrylate (PMMA) composite film containing fibers or a Polycarbonate (PC) composite film containing fibers.
Polymethyl methacrylate (PMMA) is called as acryl or organic glass, the number average molecular weight of a cast plate polymer of the polymethyl methacrylate is generally 2.2 × 104, the relative density is 1.19 to 1.20, the refractive index is 1.482 to 1.521, the hygroscopicity is below 0.5 percent, the glass transition temperature is 105 ℃, and the polymethyl methacrylate has the advantages of high transparency, low price, easy mechanical processing and the like.
PMMA is light in weight and has a density lower than that of glass, and the density of PMMA is about 1150-1190kg/m3, which is half that of glass (2400-2800kg/m 3). The weight of the material with the same size is only half of that of common glass, and 43 percent of metallic aluminum (belonging to light metal). The PMMA has high mechanical strength, the relative molecular mass is about 200 ten thousand, the PMMA is a long-chain high-molecular compound, and the formed molecular chain is very soft, so that the PMMA has high strength, and the tensile and impact resistance capability is 7-18 times higher than that of common glass. The tensile strength is 6-7 kg-force/mm < 2 >, the compressive strength is 12-14 kg-force/mm < 2 >, the impact resistance is better than that of polystyrene, and the composite material is not easy to break. A PMMA material is heated and stretched, the molecular chain segments of the PMMA material are arranged in a very orderly manner, the toughness of the material is obviously improved, the PMMA material is nailed by a nail, even if the nail penetrates through the PMMA material, cracks are not generated on the PMMA material, and the PMMA material is not broken into fragments after being punctured by a bullet. Thus, the PMMA after the drawing treatment can be used as bulletproof glass and also as a canopy on a military aircraft. In addition, the visible light transmittance of PMMA is higher, reaches 92 percent and is higher than the transmittance of glass.
The density of the polycarbonate PC is 1.18-1.22g/cm ^3, which is half of glass (2400-.
In addition, the strength of the polymethyl methacrylate PMMA or polycarbonate PC is increased and the corrosion resistance and durability are also improved after the PMMA or polycarbonate PC contains the fiber, and in the prior art, a fiber such as a glass fiber, a carbon fiber, or an aramid fiber is generally used, and specifically, a composite material formed by winding, molding, or pultrusion a fiber and a matrix material is used. Specifically, in the present embodiment, the fibers are a S-level high-light-transmittance glass fiber plain weave fabric.
In addition, as shown in fig. 2, the front plate further includes: set up in arbitrary adjacent two-layer the water barrier between the printing opacity film 1, the front bezel includes: the laminated glass comprises an upper plate layer 5, a lower plate layer 6 and a water-resisting layer sandwiched between the upper plate layer 5 and the lower plate layer 6, wherein the upper plate layer 5 comprises a plurality of light-transmitting films 1, the lower plate layer 6 also comprises a plurality of light-transmitting films 1, the water-resisting layer is glued with the light-transmitting films, specifically, as shown in figure 2, the water-resisting layer can be a toughened glass layer 2, when the water-resisting layer is the toughened glass layer 2, as shown in figure 2, the toughened glass layer 2 is sandwiched between the light-transmitting films 1, as the toughened glass layer 2 is a hard plate, the light-transmitting film 1 attached to the toughened glass plate is flat, as shown in figure 2, the lower plate layer 6 is a straight plate, one side of the upper plate layer 5, which is close to the toughened glass, is a straight surface, but one side, which is far away from the toughened glass, is a curved surface, wherein the upper plate layer 5 comprises the plurality of light-transmitting films 1, the lower, as shown in fig. 3, a plurality of short light-transmitting films 1 may be stacked in a zigzag manner so that the upper surface of the upper plate layer 5 presents a curved surface. In this embodiment, the thickness of the tempered glass layer 2 is 0.25mm to 0.33mm, and meanwhile, the purpose of color display of the front plate can be achieved by plating a color film on the tempered glass layer 2.
As shown in fig. 4, the water barrier layer may be a polyester water barrier layer 3, the polyester water barrier layer 3 may have a thickness of 0.3mm to 0.4mm, specifically, a 3M polyester film, and the 3M polyester film may be flexible, so that both the upper sheet layer 5 and the lower sheet layer 6 may be curved sheets.
In addition, as shown in fig. 1, in order to improve the ultraviolet resistance of the front plate and prevent the front plate from being aged early, it is necessary to perform ultraviolet resistance treatment on the outermost transparent film 1 of the upper plate layer 5. In this embodiment, the front panel further includes an anti-ultraviolet layer 4, the anti-ultraviolet layer 4 is sprayed on any one of the transparent films 1 located at the outermost side, that is, the anti-ultraviolet layer is disposed on the outer surface of the uppermost layer of the plurality of sequentially stacked transparent films, and the anti-ultraviolet coating is mainly composed of a film-forming resin, a light stabilizer, other additives, and the like, and is used for improving ultraviolet light oxidability of the polymer composite coating, absorbing and blocking ultraviolet rays or capturing free radicals caused by ultraviolet rays, preventing molecular breakage, and having good ultraviolet resistance, aging resistance, and weather resistance for the transparent films 1.
A second embodiment of the present invention relates to a solar cell module, as shown in fig. 5, including: the front plate 7 of the solar cell module in the first embodiment, and the substrate 9 and the solar cell 8, wherein the solar cell 8 is located between the front plate 7 and the substrate 9, and at the same time, the solar cell module further includes: the solar panel comprises a first adhesive film clamped between the substrate and the solar cell and a second adhesive film clamped between the front panel and the solar cell.
Compared with the prior art, the embodiment of the invention has the advantages that the front plate 7 comprises: the plurality of layers of the light-transmitting films 1 are stacked in sequence, each film is a fiber-reinforced thermoplastic composite film, the fiber-reinforced thermoplastic composite material can be molded through a mold after being melted, so the dimensional stability of the fiber-reinforced thermoplastic composite material is high, for example, the fiber-reinforced thermoplastic composite material can be molded into a film, then the front plate 7 is molded through each film, the film can be bent freely, and the dimensional stability of the film is high, so the dimensional stability of the front plate 7 after the film is molded is also high, the density of the fiber-reinforced thermoplastic composite material is generally about 1100-.
In this embodiment, the front plate 7 and the substrate 9 are made of the same material, and it should be noted that in actual practice, in the process of manufacturing a solar cell module, it is generally necessary to heat the solar cell module, and in the heating process, since the front plate 7 and the substrate 9 are made of the same material, the amount and direction of deformation of the front plate 7 and the substrate 9 are the same, and thus local pressure is not applied to the solar cell 8, and damage to the solar cell 8 can be avoided.
A third embodiment of the present invention relates to a method for manufacturing a front plate of a solar cell module, as shown in fig. 6 and 7, the method comprising the steps of:
sequentially stacking a plurality of layers of first light-transmitting films 11, a second adhesive film 12, a water-resisting layer 13, a third adhesive film 14 and a plurality of layers of second light-transmitting films 15 which are provided in advance according to a sequence from bottom to top to obtain a front plate spare part, wherein each of the first light-transmitting films 11 and the second light-transmitting films 15 is made of a fiber reinforced thermoplastic composite material; carrying out lamination molding on the front plate spare part;
and after the front plate spare part is subjected to lamination molding, spraying an ultraviolet-resistant layer on the outer surface of the uppermost layer of the plurality of layers of second light-transmitting films 15.
Compared with the prior art, the embodiment of the invention has the advantages that the front plate comprises: the first light-transmitting film 11 and the second light-transmitting film 15 are several layers, and each film is a fiber-reinforced thermoplastic composite film, and the fiber-reinforced thermoplastic composite material can be molded by a mold after being melted, so the dimensional stability of the film is high, for example, the fiber-reinforced thermoplastic composite material can be molded into a film, and then each film is molded into a front plate, because the film can be bent at will and the dimensional stability of the film is high, the dimensional stability of the front plate after the film is molded is also high, and the density of the fiber-reinforced thermoplastic composite material is generally about 1100-.
Specifically, the lamination molding generally includes the steps of firstly stacking a plurality of layers of first transparent films 11, a second adhesive film 12, a water-stop layer 13, a third adhesive film 14, and a plurality of layers of second transparent films 15 provided in advance in order from bottom to top to obtain a front board spare part, placing the front board spare part into a vacuum bag, performing vacuum pumping, then placing the vacuum bag with the front board spare part placed therein into a heater for heating, so that the adhesive films melt, and adhering the first transparent films 11, the water-stop layer 13, and the second transparent films 15 together after the adhesive films are solidified.
In addition, in practical cases, the step of laminating the front spare part may further include the following steps: an adhesive film is arranged between every two adjacent layers of the first light-transmitting films 11, and an adhesive film is also arranged between every two adjacent layers of the second light-transmitting films 15, so that after the front board spare part is subjected to laminating treatment, the adhesive film arranged in front of every two adjacent layers of the first light-transmitting films 11 and every two adjacent layers of the second light-transmitting films 15 is melted, the first light-transmitting films 11 are adhered together, and the second light-transmitting films 15 are adhered together.
In practical applications, the first transparent films 11 may be adhered together by high temperature glue in advance, and the second transparent films 15 may be adhered together by high temperature glue.
Due to the water barrier layer 13 arranged in the front plate, water can be prevented from entering the solar cell module through the front plate to damage the solar cells in the solar cell module.
It is to be understood that this embodiment is an example of a manufacturing method corresponding to the first embodiment, and that this embodiment can be implemented in cooperation with the first embodiment. The related technical details mentioned in the first embodiment are still valid in this embodiment, and are not described herein again in order to reduce repetition. Accordingly, the related-art details mentioned in the present embodiment can also be applied to the first embodiment.
In addition, a fourth embodiment of the present invention relates to a method for manufacturing a solar cell module, as shown in fig. 8 and 9, including the steps of:
sequentially stacking a substrate 16, a first adhesive film 17, a solar cell 18, a second adhesive film 19 and a solar cell module front plate 20 prepared by the solar cell module front plate preparation method in the third embodiment in sequence to form a solar cell module spare part, wherein the sprayed ultraviolet-resistant layer of the front plate is arranged away from the substrate;
and carrying out lamination molding on the solar assembly spare part.
Compared with the prior art, the embodiment of the invention has the advantages that the front plate comprises: the plurality of layers of the first light-transmitting film and the second light-transmitting film in the third embodiment are all fiber-reinforced thermoplastic composite films, and the fiber-reinforced thermoplastic composite materials can be molded through a mold after being melted, so that the dimensional stability of the fiber-reinforced thermoplastic composite materials is high, for example, the fiber-reinforced thermoplastic composite materials can be molded into films, and then the front plate 20 is molded through the films, and the films can be bent at will and have high dimensional stability, so that the dimensional stability of the front plate 20 after the film molding is also high, the density of the fiber-reinforced thermoplastic composite materials is generally about 1100-.
Note that the lamination process in this embodiment is the same as the lamination process in the third embodiment, and therefore, the lamination process will not be described again here.
Since the first and second embodiments correspond to the present embodiment, the present embodiment can be implemented in cooperation with the first and second embodiments. The related technical details mentioned in the first embodiment and the second embodiment are still valid in the present embodiment, and the technical effects that can be achieved in the first embodiment and the second embodiment can also be achieved in the present embodiment, and are not described herein again in order to reduce repetition. Accordingly, the related-art details mentioned in the present embodiment can also be applied to the first embodiment and the second embodiment.
In addition, a fifth embodiment of the present invention relates to a method for manufacturing a solar cell module, as shown in fig. 10 and 11, including the steps of:
sequentially stacking a substrate 21, a first adhesive film 22, a solar cell 23, a second adhesive film 24, a plurality of layers of first light-transmitting films 25, a fourth adhesive film 26, a water-resisting layer 27, a fifth adhesive film 28 and a plurality of layers of second light-transmitting films 29 which are provided in advance to form a solar module spare part; each first light-transmitting film 25 and each second light-transmitting film 29 is a fiber-reinforced thermoplastic composite;
and carrying out lamination molding on the solar assembly spare part.
Compared with the prior art, the embodiment of the invention has the advantages that the front plate comprises: the plurality of first light-transmitting films 25 and the plurality of second light-transmitting films 29 are all fiber-reinforced thermoplastic composite films, and the fiber-reinforced thermoplastic composite materials can be molded through a mold after being melted, so that the dimensional stability of the fiber-reinforced thermoplastic composite materials is high, for example, the fiber-reinforced thermoplastic composite materials can be molded into films, and then the films are molded into front plates, and the films can be bent at will, so that the dimensional stability of the front plates after the films are molded is also high, the density of the fiber-reinforced thermoplastic composite materials is generally about 1100-.
In addition, the substrate, the solar cell, the plurality of first light-transmitting films, the water-blocking layer and the plurality of second light-transmitting films are laminated together, so that a plurality of redundant steps are omitted, the manufacturing steps are simplified, and the manufacturing cost of the solar cell module is reduced.
In addition, in practical cases, the step of laminating the spare solar module part may further include the following steps: an adhesive film is arranged between every two adjacent layers of the first light-transmitting films 25, and an adhesive film is also arranged between every two adjacent layers of the second light-transmitting films 29, so that after the solar module spare parts are subjected to laminating treatment, the adhesive film arranged before every two adjacent layers of the first light-transmitting films 25 and every two adjacent layers of the second light-transmitting films 29 is melted, the first light-transmitting films 25 are adhered together, and meanwhile, the second light-transmitting films 29 are also adhered together.
In practical applications, the first transparent films 25 may be adhered together by high temperature glue in advance, and the second transparent films 29 may be adhered together by high temperature glue.
Note that the lamination process in this embodiment is the same as the lamination process in the third embodiment, and therefore, the lamination process will not be described again here.
Since the first and second embodiments correspond to the present embodiment, the present embodiment can be implemented in cooperation with the first and second embodiments. The related technical details mentioned in the first embodiment and the second embodiment are still valid in the present embodiment, and the technical effects that can be achieved in the first embodiment and the second embodiment can also be achieved in the present embodiment, and are not described herein again in order to reduce repetition. Accordingly, the related-art details mentioned in the present embodiment can also be applied to the first embodiment and the second embodiment.
It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples for carrying out the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in practice.

Claims (11)

1. A front sheet for a solar cell module, the front sheet comprising: the light-transmitting film comprises a plurality of layers of light-transmitting films which are stacked in sequence, wherein each light-transmitting film is made of a fiber reinforced thermoplastic composite material.
2. The front sheet of a solar cell module according to claim 1, wherein the fiber reinforced thermoplastic composite material comprises: one or more of fiber reinforced polymethylmethacrylate and fiber reinforced polycarbonate.
3. The front sheet of a solar cell module as claimed in claim 1, wherein the fibers are light-transmitting glass fibers.
4. The front sheet for a solar cell module according to claim 1, wherein the light-transmitting film has a thickness of 0.2mm to 0.4 mm.
5. The front sheet of a solar cell module according to claim 1, wherein the front sheet further comprises: and the waterproof layer is sandwiched between any two adjacent layers of the light-transmitting films, and the waterproof layer is glued with the light-transmitting films.
6. The front sheet of a solar cell module according to claim 5, wherein the water barrier layer is a tempered glass layer or a polyester water barrier layer.
7. The front sheet of a solar cell module according to claim 1, wherein the front sheet further comprises: the ultraviolet-resistant layer is arranged on the outer surface of the uppermost layer of the plurality of layers of the sequentially stacked transparent films.
8. A preparation method of a front plate of a solar cell module is characterized by comprising the following steps:
sequentially stacking a plurality of layers of first light-transmitting films, a second adhesive film, a water-resisting layer, a third adhesive film and a plurality of layers of second light-transmitting films which are provided in advance according to a sequence from bottom to top to obtain a front plate spare part, wherein each first light-transmitting film and each second light-transmitting film are made of fiber reinforced thermoplastic composite materials; carrying out lamination molding on the front plate spare part;
and after the front plate spare part is subjected to lamination molding, spraying an ultraviolet-resistant layer on the outer surfaces of the uppermost layers of the plurality of layers of second light-transmitting films.
9. A solar cell module, comprising: the front plate of the solar cell module as claimed in any one of claims 1 to 7 comprises a base plate, a first adhesive film, a solar cell, a second adhesive film and the front plate of the solar cell module, which are sequentially compounded from bottom to top.
10. A preparation method of a solar cell module is characterized by comprising the following steps:
sequentially stacking a substrate, a first adhesive film, a solar cell, a second adhesive film and the solar cell module front plate prepared by the method according to claim 8 to form a solar module spare part, wherein the sprayed ultraviolet-resistant layer of the front plate is arranged away from the substrate;
and carrying out lamination molding on the solar assembly spare part.
11. A preparation method of a solar cell module is characterized by comprising the following steps:
sequentially stacking a substrate, a first adhesive film, a solar cell, a second adhesive film, a plurality of layers of first light-transmitting films, a fourth adhesive film, a water-resisting layer, a fifth adhesive film and a plurality of layers of second light-transmitting films which are provided in advance to form a solar module spare part; each first light-transmitting film and each second light-transmitting film are made of fiber-reinforced thermoplastic composite materials;
and carrying out lamination molding on the solar assembly spare part.
CN201811627743.6A 2018-12-28 2018-12-28 Front plate of solar cell module, solar cell module and preparation method of solar cell module Pending CN111391457A (en)

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