CN113540262A - Photovoltaic module, photovoltaic system and preparation method of photovoltaic module - Google Patents

Photovoltaic module, photovoltaic system and preparation method of photovoltaic module Download PDF

Info

Publication number
CN113540262A
CN113540262A CN202110926782.1A CN202110926782A CN113540262A CN 113540262 A CN113540262 A CN 113540262A CN 202110926782 A CN202110926782 A CN 202110926782A CN 113540262 A CN113540262 A CN 113540262A
Authority
CN
China
Prior art keywords
photovoltaic module
layer
color carrier
carrier layer
color
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110926782.1A
Other languages
Chinese (zh)
Inventor
吴伟
谭小春
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Longi Solar Technology Co Ltd
Original Assignee
Xian Longi Green Energy Architecture Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xian Longi Green Energy Architecture Technology Co Ltd filed Critical Xian Longi Green Energy Architecture Technology Co Ltd
Priority to CN202110926782.1A priority Critical patent/CN113540262A/en
Publication of CN113540262A publication Critical patent/CN113540262A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • 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
    • 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
    • H01L31/02—Details
    • H01L31/0216—Coatings
    • H01L31/02161—Coatings for devices characterised by at least one potential jump barrier or surface barrier
    • H01L31/02167—Coatings for devices characterised by at least one potential jump barrier or surface barrier for solar cells
    • 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
    • H01L31/18—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
    • 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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Abstract

The invention discloses a photovoltaic module, a photovoltaic system and a preparation method of the photovoltaic module, relates to the technical field of photovoltaic manufacturing, and aims to solve the problem that a color part of the photovoltaic module is unstable. The photovoltaic module comprises a light-transmitting plate, a first packaging layer, a battery packaging layer and a back plate which are sequentially stacked; the first packaging layer is internally packaged with a color carrier layer with colors and/or patterns in a wrapping mode, and the color carrier layer is provided with light-transmitting hollow holes. Because an integral color carrier layer is adopted as a structure for bearing colors and/or patterns, and the color carrier layer is wrapped in the first packaging layer, the color carrier layer has stable structure under the protection of the first packaging layer, the structure and the position can not be changed when lamination is carried out, and the stability and the consistency of a color part in the photovoltaic module in the preparation process are improved. The photovoltaic system comprises the photovoltaic module, and the preparation method of the photovoltaic module comprises the steps of pre-shaping a first packaging layer with a color carrier layer, and then laminating to obtain the photovoltaic module.

Description

Photovoltaic module, photovoltaic system and preparation method of photovoltaic module
Technical Field
The invention relates to the technical field of solar photovoltaics, in particular to a photovoltaic module, a photovoltaic system and a preparation method of the photovoltaic module.
Background
With the requirement of the photovoltaic module on appearance, such as color or pattern, the color photovoltaic module is widely used.
The photovoltaic module mainly comprises a light-transmitting plate, a battery and a back plate, and the color photovoltaic module mainly realizes the color through the colored light-transmitting plate, the colored battery, the colored adhesive film or the colored back plate. For example, the prior art discloses a high-transmittance color photovoltaic module, which is prepared by introducing a color layer into a transparent bonding layer and then using a conventional photovoltaic module lamination preparation process, wherein the color layer is an interference-type pearlescent powder layer. However, during the lamination process, the transparent bonding layer is melted, so that it is difficult to ensure the structure and position of the initial color layer, and thus the appearance of the product is not uniform.
In summary, how to solve the problem of unstable color portion of the color photovoltaic device becomes a problem to be solved urgently by those skilled in the art.
Disclosure of Invention
The invention aims to provide a photovoltaic module, a photovoltaic system and a preparation method of the photovoltaic module, so as to improve the stability and consistency of a color part of the photovoltaic module in the preparation process of the photovoltaic module.
In a first aspect, the present invention provides a photovoltaic module, which includes a light-transmitting plate, a first encapsulation layer, a battery encapsulation layer and a back plate, which are stacked in sequence; the first packaging layer is internally packaged with a color carrier layer with colors and/or patterns in a wrapping mode, and the color carrier layer is provided with light-transmitting hollow holes.
When the technical scheme is adopted, the photovoltaic module is provided with the first packaging layer between the light-transmitting plate and the battery packaging layer, the first packaging layer is wrapped with the color carrier layer, and the color carrier layer is provided with colors and/or patterns, namely, the colors and/or the patterns are carried by the whole color carrier layer. The color carrier layer is provided with hollow holes which can transmit light. The photovoltaic module adopts the integral color carrier layer as a structure for bearing colors and/or patterns, and the color carrier layer is wrapped in the first packaging layer, so that the color carrier layer is stable in structure under the protection of the first packaging layer, compared with the prior method of introducing an interference pearlescent powder layer into a transparent bonding layer as a color layer and then preparing the module by adopting a lamination preparation process, the color carrier cloth layer in the first packaging layer can not change the structure and the position when the photovoltaic module is laminated, the original structure and the original position are kept, and the color and/or the patterns of the color carrier layer are stable, so that the stability and the consistency of a color part in the photovoltaic module in the preparation process of the photovoltaic module are improved.
Optionally, in the above photovoltaic module, the material of the color carrier layer is any one or a combination of a plurality of materials selected from a non-woven fabric, a woven fabric, and a plastic sheet.
So set up, because non-woven fabrics, weave and the plastic sheet is an overall structure, can provide a stable carrier for color and/or pattern, encapsulate its parcel in first encapsulation layer, further improved the stability of its structure, color and pattern.
Optionally, in the above photovoltaic module, the nonwoven fabric is made of transparent fibers having colors; or the fabric is woven by transparent fibers with colors.
So set up, the color of non-woven fabrics or weaving presents through the transparent fiber from taking the color, and color and pattern are difficult to damage, keep more lasting to further improved photovoltaic module's the stability of color part.
Optionally, in the photovoltaic module, the transparent fiber is one or a combination of a transparent inorganic fiber and a transparent organic fiber.
So set up, can improve the weatherability of non-woven fabrics or weaving, be difficult to take place to deteriorate and damage.
Optionally, in the above photovoltaic module, the first encapsulation layer encapsulates the color carrier layer with a transparent resin.
So set up, transparent resin can improve the two sides of first packaging layer respectively with light-passing board and the battery packaging layer between bonding strength, transparent resin has high light transmissivity, is favorable to the transmission of light and the appearance of color.
Optionally, in the photovoltaic module, the first encapsulating layer is a prefabricated structure, and the transparent resin on both sides of the first encapsulating layer is respectively fixed with the light-transmitting plate and the cell encapsulating layer by lamination.
So set up, the first encapsulation layer that adopts prefabricated construction can be in advance with color carrier layer encapsulation design, when subsequent lamination is handled, can not lead to the fact the influence to color carrier layer's structure and position, further solidifies first encapsulation layer through the lamination, has further guaranteed photovoltaic module's color and/or the stability and the uniformity of pattern.
Optionally, in the photovoltaic module described above, the transparent resin is a uv-curable and/or heat-curable resin material.
So set up, can the rapid curing transparent resin, curing strength is high.
Optionally, in the photovoltaic module, the resin material is any one or a combination of more of epoxy resin, polyurethane resin, polyether resin, polyester resin and silicone resin, which are all subjected to acrylic modification.
Optionally, in the photovoltaic module, the hollow holes of the color carrier layer are arranged in an array.
So set up for the fretwork hole is arranged regularly, and each photovoltaic module's structure uniformity is high.
In a second aspect, the present invention also provides a photovoltaic system comprising a photovoltaic module as mentioned in any of the above. Compared with the prior art, the beneficial effects of the photovoltaic module system provided by the invention are the same as those of the photovoltaic module in the technical scheme, and the details are not repeated here.
In a third aspect, the present invention further provides a method for preparing a photovoltaic module, comprising the steps of:
pre-shaping a first packaging layer with a color carrier layer, wherein the color carrier layer is provided with colors and/or patterns, and the color carrier layer is provided with hollow holes for light transmission;
and laminating the light-transmitting plate, the first packaging layer, the battery packaging layer and the back plate which are sequentially superposed to obtain the photovoltaic module.
Compared with the prior art, the beneficial effects of the preparation method of the photovoltaic module provided by the invention are the same as those of the photovoltaic module in the technical scheme, and the details are not repeated here.
Optionally, in the above method for manufacturing a photovoltaic module, the step of pre-forming the first encapsulation layer having the color carrier layer specifically includes:
soaking the color carrier layer in transparent resin;
and taking out the soaked color carrier layer, and coating and shaping the color carrier layer after the transparent resin is cured to obtain the first packaging layer.
By the arrangement, during lamination, the transparent resin can improve the bonding strength between the two surfaces of the first packaging layer and the light-transmitting plate and the battery packaging layer respectively, and is not easy to delaminate or fall off; on the other hand, the transparent resin has high light transmittance, which is beneficial to the transmission of light and the appearance of color.
Optionally, in the above method for manufacturing a photovoltaic module, after the transparent resin is cured and then wraps the color carrier layer, the method further includes the steps of: and coating the surface of the shaped color carrier layer with N times of transparent resin, and continuing to coat the next time of transparent resin after the transparent resin is cured after each coating, wherein N is an integer greater than or equal to 1.
So set up, can further improve the encapsulation effect of first encapsulation layer, the stable in structure of protection color carrier layer satisfies thickness and adhesive strength's needs.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram of a photovoltaic module according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a first encapsulation layer of a photovoltaic module according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a color carrier layer of a first encapsulation layer according to an embodiment of the present invention;
fig. 4 is a schematic flow chart of a method for manufacturing a photovoltaic module according to an embodiment of the present invention;
fig. 5 is a schematic flow chart of step S100 of a method for manufacturing a photovoltaic module according to an embodiment of the present invention.
Reference numerals:
1-light-transmitting plate, 2-first packaging layer, 21 transparent resin, 22-color carrier layer, 221-hollow hole, 3-battery packaging layer, 31-power generation unit and 4-back plate.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. The meaning of "a number" is one or more unless specifically limited otherwise.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the photovoltaic field, a photovoltaic module is an important component of a photovoltaic power generation system, and the photovoltaic module mainly comprises a light-transmitting plate, a photovoltaic cell and a back plate. The photovoltaic cell is arranged between the light-transmitting plate and the back plate, and the light-transmitting plate and the back plate play a role in supporting and fixing the photovoltaic cell. Sunlight is transmitted into the photovoltaic cell through the light-transmitting plate, and the photovoltaic cell performs photoelectric conversion. At present, as the country develops green buildings, photovoltaic building integrated products formed by combining photovoltaic module products and buildings become a trend. In the case of building facades, it is often necessary to use products of different colours or patterns. The color photovoltaic module is applied to the appearance of buildings as usual, and can be applied to other fields, such as photovoltaic generator sets, road administration facility modification and the like, without being limited to the scenes and the fields listed in the invention. The existing color photovoltaic module realizes color mainly through a color light-transmitting plate, a color battery, a color adhesive film or a color back plate. For example, the prior art discloses a high-transmittance color photovoltaic module, which is prepared by introducing a color layer into a transparent bonding layer and then using a conventional photovoltaic module lamination preparation process, wherein the color layer is an interference-type pearlescent powder layer. However, during the lamination process, the transparent bonding layer is melted, so that it is difficult to ensure the structure and position of the initial color layer, and the appearance of the product is inconsistent, which results in instability of the colored portion of the colored photovoltaic module.
In view of the above, referring to fig. 1-3, an embodiment of the invention provides a photovoltaic module, which includes a light-transmitting plate 1, a first packaging layer 2, a battery packaging layer 3, and a back plate 4 stacked in sequence, and the light-transmitting plate 1, the first packaging layer 2, the battery packaging layer 3, and the back plate 4 are sequentially stacked from top to bottom in the orientation shown in fig. 1, and fixed together to form an integral body. The first packaging layer 2 is internally packaged with a color carrier layer 22 with colors and/or patterns, namely, a whole piece of the color carrier layer 22 is packaged and shaped in the first packaging layer 2, the color carrier layer 22 is used as a carrier of the colors and/or patterns, and the color carrier layer 22 is provided with a hollow hole 221 for light transmission.
The photovoltaic module is realized in color by the color carrier layer 22 in the first encapsulating layer 2, and the color and/or pattern of the color carrier layer 22 can be represented by the first encapsulating layer 2 and the light-transmitting plate 1. When the photovoltaic module is used, sunlight is emitted into the battery packaging layer 3 through the light-transmitting plate 1 and the hollow holes 221 of the color carrier layer 22, the power generation unit 31 in the battery packaging layer 3 performs photoelectric conversion to generate power, and the back plate 4 serves as support protection of the photovoltaic module.
According to the structure and implementation process, as the first packaging layer 2 is arranged between the light-transmitting plate 1 and the cell packaging layer 3, the integrated color carrier layer 22 is adopted as a structure for carrying colors and/or patterns, the color carrier layer 22 is wrapped in the first packaging layer 2, the color carrier layer 22 is structurally stable under the protection of the first packaging layer 2, compared with the prior art that an interference type pearl essence layer is introduced into a transparent bonding layer as a color layer, then, a lamination preparation process is adopted for preparing the assembly, when the photovoltaic assembly is laminated, the color carrier layer 22 of the first encapsulation layer 2 as a whole is not changed in structure and position, the original structure and position are maintained, and the color carrier layer 22 itself is stable in color and/or pattern, therefore, the stability and consistency of the color part in the photovoltaic module in the preparation process of the photovoltaic module are improved.
Further, in the present embodiment, the material of the color carrier layer 22 is any one or a combination of a plurality of materials selected from a non-woven fabric, a woven fabric, and a plastic sheet. That is, the color carrier layer 22 may be a non-woven fabric or a plastic sheet, or any combination of the three. The non-woven fabric, the woven fabric and the plastic sheet are of an integral structure, and can bear colors and/or patterns, so that the structure is stable. Thus, a stable support for colors and/or patterns can be provided. The packaging structure is packaged in the first packaging layer 2 in a wrapping mode, and the stability of the structure, the color and the pattern of the packaging structure is further improved. Of course, the color carrier layer 22 can be other integral materials capable of carrying colors and/or patterns, and is not limited to the materials listed in this embodiment.
In addition, the prior art discloses a method for manufacturing a color photovoltaic module, which realizes color by arranging a colored glaze layer on the back surface of a light-transmitting plate. However, the glaze layer and the transparent plate are not firmly combined, and are easily scratched in the actual production process, so that the appearance defects of the color component are caused, and the glaze layer and the packaging adhesive film are not good in bonding performance and are easily layered or fall off.
In view of this, in order to solve the problem that the adhesion between the glaze layer and the light-transmitting plate and the packaging adhesive film is not good, the embodiment of the present invention further provides the following scheme. As shown in fig. 2, the first encapsulating layer 2 encapsulates the color carrier layer 22 by the transparent resin 21, that is, the color carrier layer 22 is encapsulated and shaped in the transparent resin 21. With this arrangement, when the first sealing layer 2 using the transparent resin 21 is laminated together with the light-transmitting plate 1, the battery sealing layer 3, and the back plate 4, the transparent resin 21 can improve the bonding strength between the two surfaces of the first sealing layer 2 and the light-transmitting plate 1 and the battery sealing layer 3, respectively. Compared with the existing combination of the glaze layer and the light-transmitting plate, the photovoltaic module is bonded and fixed with the light-transmitting plate 1 and the battery packaging layer 3 through the first packaging layer 2 with the transparent resin 21, so that the combination strength is improved, and the photovoltaic module is not easy to delaminate or fall off. On the other hand, the transparent resin 21 has high light transmittance, and is advantageous for transmission of light and appearance of color. In addition, transparent resin 21 can fully soak the color carrier layer, and transparent resin 21 has improved the parcel design effect to color carrier layer 22 in getting into the fretwork hole 221 of color carrier layer 22 under the liquid state, has guaranteed stability and the uniformity of the structure and the position of color carrier layer 22 in photovoltaic module preparation process.
Of course, the first encapsulating layer 2 can also encapsulate and shape the color carrier layer 22 by other materials, such as transparent glue, rubber, glass, and the like. The material is not limited to the material listed in the embodiment, as long as the wrapping, packaging and shaping of the color carrier layer 22 can be achieved.
As a possible implementation manner, as shown in fig. 1 and fig. 2, in this embodiment, the first encapsulating layer 2 is a prefabricated structure, that is, the color carrier layer 22 is first individually wrapped, encapsulated and shaped to obtain a prefabricated first encapsulating layer 2. And then the prefabricated first packaging layer 2 is placed between the battery packaging layer 3 and the light-transmitting plate 1, and the back plate 4, the battery packaging layer 3, the first packaging layer 2 and the light-transmitting plate 1 are fixed by lamination through lamination processing.
Taking the first packaging layer 2 as an example to wrap and shape the color carrier layer 22 through the transparent resin 21, the color carrier layer 22 is soaked in the transparent resin 21, the transparent resin 21 wraps the color carrier layer 22, and after the transparent resin 21 is cured, a separately accessible prefabricated structure is formed. In order to better encapsulate the color carrier layer 22, the surface of the cured transparent resin 21 may be coated with the transparent resin 21 again, and the operation may be repeated as many times as necessary while waiting for the transparent resin 21 to be cured again. And obtaining the first packaging layer 2 meeting the requirements of thickness and bonding strength.
The first packaging layer 2 with the prefabricated structure can package and shape the color carrier layer 22 in advance, so that the structure and the position of the color carrier layer 22 cannot be influenced during subsequent lamination treatment, and the first packaging layer 2 is further cured through lamination, so that the stability and the consistency of the color and/or the pattern of the photovoltaic module in the preparation process of the photovoltaic module are further ensured.
Of course, the first packaging layer 2 may also be formed by directly placing the color carrier layer 22 on the battery packaging layer 3 without using a prefabricated structure, packaging and shaping the color carrier layer 22 on the battery packaging layer 3 to obtain the first packaging layer 2, and finally laminating the light-transmitting plate 1, the first packaging layer 2, the battery packaging layer 3 and the back plate 4. The structural stability of the wrapped, encapsulated shape of the color carrier layer 22 alone is not as good as the preformed structure, but the structural stability and consistency of the colored portion during the manufacturing process can be improved over the prior art.
Preferably, in the present embodiment, the transparent resin is a uv-curable and/or heat-curable resin material. The ultraviolet-curable resin material can be cured under ultraviolet irradiation, and has high curing speed and high strength after curing. The heat-curable resin material can be cured after being heated, and also has high curing speed and high strength after being cured. The resin material with ultraviolet light curing and thermocuring dual curing capability can be cured under the irradiation of ultraviolet light, can also be cured after being heated, and can also be cured under the conditions of ultraviolet light irradiation and heating, so that the curing way is increased, and the curing speed is further improved under the conditions of ultraviolet light irradiation and heating.
Specifically, several ultraviolet-curable and/or thermally-curable resin materials are provided in the present embodiment, and the resin materials may be any one or a combination of more of epoxy resin, polyurethane resin, polyether resin, polyester resin, and silicone resin, all of which are modified by acrylic. Namely, the resin material is any one or combination of more of acrylic modified epoxy resin, acrylic modified polyurethane resin, acrylic modified polyether resin, acrylic modified polyester resin and acrylic modified organic silicon resin. For example, the color carrier layer 22 is impregnated with the resin material in any one or more of the combinations thereof, and after curing, the resin material is applied one or more times, and the resin material applied each time may be the same or different, and the thickness of each application is determined depending on the resin material, and usually is not more than 50 μm. The thickness of the first encapsulating layer 2 finally obtained is 50 μm to 500 μm. Of course, the resin material is not limited to the materials exemplified in the present embodiment.
As shown in fig. 3, in the present embodiment, the hollow holes 221 of the color carrier layer 22 are arranged in an array, and the array may be a regular array such as a rectangular array, a central radiation array, and the like, so that the structural uniformity of each photovoltaic module is high. Of course, the hollow holes 221 may be arranged irregularly. The shape of the hollow hole 221 may be polygonal, circular, elliptical, irregular, etc. The structure of the color carrier layer 22 can be changed through different array arrangements and shapes of the hollow holes 221, and the photovoltaic module can present different patterns through the layout and the shapes of the hollow holes 221. Of course, the pattern of the photovoltaic module can also be embodied by different colors on the color carrier layer 22.
In this embodiment, the size of the hollow hole 221 may be 10 μm to 1000 μm, the hollow hole 221 with a suitable size is selected according to actual requirements, such as light transmittance, and the light transmittance of the first package layer 2 may be adjusted by adjusting the size and density of the hollow hole 221.
In this embodiment, if the material of the color carrier layer 22 is a non-woven fabric or a woven fabric, the non-woven fabric may be made of colored transparent fibers, and the woven fabric may be woven of colored transparent fibers. That is, the color of the non-woven fabric or the woven fabric is represented by the transparent fiber with the color, so that the color and the pattern are not easy to damage and are kept more durable, thereby further improving the stability of the color part of the photovoltaic module. In addition, the non-woven fabric or woven fabric made of the transparent fibers has high structural strength and is not easy to generate structural damage. Meanwhile, the light transmittance of the first encapsulation layer 2 can be further improved by adopting transparent fibers. The non-woven fabric or woven fabric can be expressed in a single color, such as yellow, gray, blue, green, etc., and can also be expressed in a combination of multiple colors to present a pattern. Of course, the color of the nonwoven fabric or woven fabric may be printed on the nonwoven fabric or woven fabric.
Further, in the present embodiment, the transparent fiber is one or a combination of a transparent inorganic fiber and a transparent organic fiber. The inorganic fiber may be glass fiber, and the organic fiber may be polyester fiber. The weather resistance of the non-woven fabric or the woven fabric can be improved by adopting the transparent inorganic fiber and the transparent organic fiber, and the deterioration and the damage are not easy to occur.
In the present embodiment, the light-transmitting plate 1 may be made of a conventional glass material, or may be made of a transparent weather-resistant polymer material, such as ETFE (ethylene tetrafluoroethylene copolymer), ECTFE (ethylene chlorotrifluoroethylene copolymer), PVDF (polyvinylidene fluoride), or may be a multilayer composite film material including a weather-resistant outer layer. The battery sealing layer 3 may be any one or a combination of EVA (ethylene vinyl acetate), POE (a high polymer of ethylene and butene, or a high polymer of ethylene and octene), and PVB (polyvinyl butyral). The back plate 4 can be a back plate material of a conventional solar photovoltaic module, such as polyester and fluorinated materials, has the performances of long-term aging resistance (damp heat, dry heat and ultraviolet), electric insulation resistance, water vapor barrier and the like, and can also be a metal back plate material.
Based on the photovoltaic module described in any of the above embodiments, the embodiment of the present invention further provides a photovoltaic system, including the photovoltaic module described in any of the above embodiments.
The photovoltaic system adopts the photovoltaic module of the invention, the color of the photovoltaic module is realized by the color carrier layer 22 in the first packaging layer 2, and the color and/or pattern of the color carrier layer 22 can be shown by the first packaging layer 2 and the light-transmitting plate 1. Because the color carrier layer 22 is wrapped in the first packaging layer 2, the color carrier layer 22 is stable in structure under the protection of the first packaging layer 2, when lamination is carried out, the integral color carrier layer 22 in the first packaging layer 2 cannot be changed in structure and position, the original structure and position are kept, and the color and/or pattern of the color carrier layer 22 are stable, so that the stability and the consistency of a color part in a photovoltaic module in the preparation process are improved.
Based on the photovoltaic module described in any of the above embodiments, an embodiment of the present invention further provides a method for manufacturing a photovoltaic module, where the method includes:
step S100, pre-molding the first encapsulation layer 2 having the color carrier layer 22, where the color carrier layer 22 has colors and/or patterns, and the color carrier layer 22 is disposed with a hollow hole 221 for light transmission. The color carrier layer 22 may be made of any one or a combination of non-woven fabric, woven fabric and plastic sheet.
And S200, laminating the light-transmitting plate 1, the first packaging layer 2, the battery packaging layer 3 and the back plate 4 which are sequentially stacked to obtain the photovoltaic module. Wherein, during the lamination process, the first packaging layer 2 is further cured to form strong adhesion between the light-transmitting plate 1 and the battery packaging layer 3.
According to the photovoltaic module obtained by the preparation method, the color of the photovoltaic module is presented through the color carrier layer, and the color carrier layer 22 is wrapped and packaged in the first packaging layer 2 in advance, so that the first packaging layer 2 is an independent prefabricated structure, the structure and the position of the color carrier layer 22 are fixed in advance, fluctuation caused by a subsequent lamination process is avoided, and the stability and the consistency of the color part of the photovoltaic module in the preparation process of the photovoltaic module are ensured.
Further, in this embodiment, the pre-shaping of the first encapsulation layer 2 with the color carrier layer 22 in step S100 specifically includes the steps of:
step S101, soaking the color carrier layer 22 in the transparent resin 21;
and S102, taking out the soaked color carrier layer 22, and curing the transparent resin 21 and then wrapping and shaping the color carrier layer 22 to obtain the first packaging layer 2. The transparent resin 21 is a resin material that can be cured by ultraviolet light and/or heat.
Taking the non-woven fabric as an example, the non-woven fabric is cut to a desired size, for example 698mm 2089mm, and the non-woven fabric is soaked in the transparent resin 21 and kept for a certain period of time to ensure that the transparent resin 21 is sufficiently contacted with the non-woven fabric. And taking out the soaked non-woven fabric, placing the non-woven fabric under ultraviolet light for irradiation and/or heating, and curing the transparent resin 21 to finish the shaping of the non-woven fabric.
Adopt transparent resin 21 to carry out the pre-finalization to color carrier layer 22, on the one hand use transparent resin 21's first packaging layer 2 when with light-passing board 1, battery packaging layer 3 and backplate 4 together lamination, transparent resin 21 can improve the bonding strength between two sides of first packaging layer 2 and light-passing board 1 and the battery packaging layer 3 respectively, be difficult to appear layering or drop. On the other hand, the transparent resin 21 has high light transmittance, and is advantageous for transmission of light and appearance of color. In addition, transparent resin 21 can fully soak color carrier layer 22, and transparent resin 21 has improved the parcel design effect to color carrier layer 22 in entering the fretwork hole 221 of color carrier layer 22 under the liquid state, has guaranteed the stability of the structure and the position of color carrier layer 22 in photovoltaic module preparation process.
Further, in this embodiment, after the transparent resin 21 is cured in step S102 and then wraps the shaping color carrier layer 22, the method further includes the steps of: s103, coating the surface of the shaped color carrier layer 22 with the transparent resin 21 for N times, and continuing to coat the transparent resin 21 for the next time after the transparent resin 21 is cured after each coating, wherein N is an integer greater than or equal to 1.
Specifically, the color carrier layer 22 is soaked in the transparent resin 21, and after curing, the resin material is coated one or more times, the resin material for each coating may be the same or different, and the thickness for each coating is determined according to the difference of the resin material, and generally the thickness for each coating is not more than 50 μm. The thickness of the first encapsulating layer 2 finally obtained is 50 μm to 500 μm.
The transparent resin 21 is coated on the color carrier layer 22 which is soaked with the transparent resin 21 and shaped once or more times, so that the packaging effect of the first packaging layer 2 can be further improved, the structural stability of the color carrier layer 22 is protected, and the requirements of thickness and bonding strength are met.
In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims (13)

1. A photovoltaic module is characterized by comprising a light-transmitting plate, a first packaging layer, a battery packaging layer and a back plate which are sequentially stacked; the first packaging layer is internally packaged with a color carrier layer with colors and/or patterns in a wrapping mode, and the color carrier layer is provided with light-transmitting hollow holes.
2. The photovoltaic module according to claim 1, wherein the material of the color carrier layer is any one or a combination of a non-woven fabric, a woven fabric and a plastic sheet.
3. The photovoltaic module according to claim 2, characterized in that said non-woven fabric is made of transparent fibers having a color; or the fabric is woven by transparent fibers with colors.
4. The photovoltaic module of claim 3, wherein the transparent fibers are one or a combination of transparent inorganic fibers and transparent organic fibers.
5. The photovoltaic module of claim 1 wherein the first encapsulant layer encapsulates the color carrier layer by a transparent resin wrap.
6. The photovoltaic module according to claim 5, wherein the first encapsulating layer is a prefabricated structure, and the transparent resin on both sides of the first encapsulating layer is fixed with the light-transmitting plate and the cell encapsulating layer by lamination.
7. The photovoltaic module according to claim 5, wherein the transparent resin is a UV-curable and/or thermally-curable resin material.
8. The photovoltaic module of claim 7, wherein the resin material is any one or more of an epoxy resin, a polyurethane resin, a polyether resin, a polyester resin, and a silicone resin, all of which are modified by acrylic.
9. The photovoltaic module according to claim 1, wherein the holes of the color carrier layer are arranged in a regular array or irregular arrangement.
10. A photovoltaic system comprising a photovoltaic module according to any one of claims 1 to 9.
11. A preparation method of a photovoltaic module is characterized by comprising the following steps:
pre-shaping a first packaging layer with a color carrier layer, wherein the color carrier layer is provided with colors and/or patterns, and hollow holes for light transmission are arranged on the color carrier layer;
and laminating the light-transmitting plate, the first packaging layer, the battery packaging layer and the back plate which are sequentially stacked to obtain the photovoltaic module.
12. The method for preparing a photovoltaic module according to claim 11, wherein the pre-shaping of the first encapsulant layer with a color carrier layer comprises the steps of:
soaking the color carrier layer in transparent resin;
and taking out the soaked color carrier layer, and coating and shaping the color carrier layer after the transparent resin is cured to obtain the first packaging layer.
13. The method for preparing a photovoltaic module according to claim 12, further comprising the step of, after the transparent resin is cured and the color carrier layer is wrapped and shaped: and coating the surface of the shaped color carrier layer with N times of transparent resin, and continuing to coat the next time of transparent resin after the transparent resin is cured after each coating, wherein N is an integer greater than or equal to 1.
CN202110926782.1A 2021-08-12 2021-08-12 Photovoltaic module, photovoltaic system and preparation method of photovoltaic module Pending CN113540262A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110926782.1A CN113540262A (en) 2021-08-12 2021-08-12 Photovoltaic module, photovoltaic system and preparation method of photovoltaic module

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110926782.1A CN113540262A (en) 2021-08-12 2021-08-12 Photovoltaic module, photovoltaic system and preparation method of photovoltaic module

Publications (1)

Publication Number Publication Date
CN113540262A true CN113540262A (en) 2021-10-22

Family

ID=78122417

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110926782.1A Pending CN113540262A (en) 2021-08-12 2021-08-12 Photovoltaic module, photovoltaic system and preparation method of photovoltaic module

Country Status (1)

Country Link
CN (1) CN113540262A (en)

Similar Documents

Publication Publication Date Title
DK2863443T3 (en) Photovoltaic panel and method for making it
US8580377B2 (en) Laminated polyester film and solar panel made thereof
CN111718665A (en) Adhesive film for packaging photovoltaic module with multilayer structure and preparation method thereof
JP2010527142A (en) Use of polymer composites in the production of photovoltaic modules.
HU224783B1 (en) Method for producing photovoltaic module as multilayer structure
CN102386251A (en) Flexible solar cell photovoltaic component made with flexible substrate
JP2016201577A (en) Solar cell unit
KR102408270B1 (en) Solar module with aligning encapsulant
CN108767058A (en) A kind of solar cell module and its packaging method
CN215988785U (en) Photovoltaic module and photovoltaic system
JP4984197B2 (en) Transparent film type solar cell module
CN208507702U (en) A kind of photovoltaic composite back plate and its photovoltaic module of application
CN113540262A (en) Photovoltaic module, photovoltaic system and preparation method of photovoltaic module
CN107026215A (en) Photovoltaic module
CN106898668B (en) Solar panel and its packaging method
CN215451440U (en) Light flexible assembly with double-sided light trapping structure
CN202405287U (en) Zero-shrinkage EVA (Ethylene vinyl acetate Copolymer) glue film for packaging photovoltaic component
CN208352345U (en) A kind of perovskite solar cell module
CN202332901U (en) Soft-base flexible solar-cell photovoltaic module
CN110911513A (en) BIPV assembly structure and preparation method
CN211182225U (en) Photovoltaic backboard and photovoltaic module with weather-proof and flame-retardant effects
CN111341868A (en) Photovoltaic building integrated assembly and preparation method thereof
CN218385241U (en) Flexible light photovoltaic module
CN206727083U (en) Photovoltaic module
CN117558794A (en) Decorate composite bed, photovoltaic backplate and photovoltaic module

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
TA01 Transfer of patent application right

Effective date of registration: 20220517

Address after: 710000 Shangyuan Road, caotan Ecological Industrial Park, Xi'an Economic and Technological Development Zone, Shaanxi Province

Applicant after: LONGI LERRI SOLAR TECHNOLOGY CO.,LTD.

Address before: 710018 floor 3, office building, No. 8369, Shangyuan Road, Xi'an Economic and Technological Development Zone, Xi'an City, Shaanxi Province

Applicant before: Xi'an Longji Green Energy Construction Technology Co.,Ltd.

TA01 Transfer of patent application right