CN111434493A - Laminating method of solar cell module and solar cell module - Google Patents
Laminating method of solar cell module and solar cell module Download PDFInfo
- Publication number
- CN111434493A CN111434493A CN201811604680.2A CN201811604680A CN111434493A CN 111434493 A CN111434493 A CN 111434493A CN 201811604680 A CN201811604680 A CN 201811604680A CN 111434493 A CN111434493 A CN 111434493A
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- solar cell
- cell module
- laminating
- preheating
- planar solar
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- 238000010030 laminating Methods 0.000 title claims abstract description 70
- 238000000034 method Methods 0.000 title claims abstract description 40
- 238000010438 heat treatment Methods 0.000 claims abstract description 12
- 238000003475 lamination Methods 0.000 claims description 20
- 238000001816 cooling Methods 0.000 claims description 9
- 239000002390 adhesive tape Substances 0.000 claims description 5
- 238000005452 bending Methods 0.000 claims description 2
- 239000002313 adhesive film Substances 0.000 abstract description 14
- 238000002844 melting Methods 0.000 abstract description 2
- 230000008018 melting Effects 0.000 abstract description 2
- 238000002360 preparation method Methods 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 12
- 239000000463 material Substances 0.000 description 3
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000005022 packaging material Substances 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Classifications
-
- 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
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
-
- 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
- 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)
- Photovoltaic Devices (AREA)
Abstract
The invention relates to the field of solar cell panel preparation, in particular to a laminating method of a solar cell module and the solar cell module, wherein the laminating method comprises the following steps: fixing the planar solar cell module on a mold, and then sequentially carrying out preheating and heating laminating operations to obtain the solar cell module. According to the invention, the solar cell module is obtained by laminating the planar solar cell module, the module is softened only by reducing the temperature in the laminating process without melting the adhesive film, so that the condition that the molten adhesive film flows on a mould with a curved surface and is distributed unevenly is avoided, the yield is improved, and secondly, the planar solar cell module has a process of softening in advance by arranging the preheating step, so that the condition that the adhesive film is extruded or broken due to the sudden stress of the planar solar cell module in the laminating process is avoided.
Description
Technical Field
The invention relates to the field of solar cell panel preparation, in particular to a laminating method of a solar cell module and the solar cell module.
Background
With the development of solar cell technology, more and more solar cell modules are applied to various scenes, such as solar power generation backpacks, solar power generation mobile power sources, automobile skylights, and the like. As the number of applications of the solar cell module increases, the appearance of the solar cell module is required to be more, and the solar cell module is required to form a curved surface structure.
The existing solar cell module structure includes: the solar cell comprises a front plate, an adhesive film, a solar chip, an adhesive film and a back plate. In the prior art, most of solar cell modules with curved surface structures are directly formed by one-step lamination, namely, multiple layers of packaging materials are applied together and placed on a mold, and then are formed by one-step lamination, and the physical reaction and bonding of the multiple layers of packaging materials are realized in one-step lamination.
However, according to the scheme, the adhesive film needs to be melted during direct lamination, and when the solar cell module with the curved surface structure is prepared, the surface of the mold is set to be the curved surface, so that the adhesive film flows under the action of gravity, extrusion force and the like after being melted, the adhesive film is further unevenly distributed and even overflows, and the yield is low.
Disclosure of Invention
Therefore, the present invention is directed to overcome the defects in the prior art that the adhesive film is unevenly distributed and even overflows due to the direct formation of the curved surface structure by one-time lamination, and the yield is low, thereby providing a lamination method for a solar cell module and a solar cell module.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a method of laminating a solar cell module, comprising the steps of:
fixing the planar solar cell module on a mold, setting the bearing surface of the mold into a curved surface, and then sequentially carrying out preheating operation and heating laminating operation on the planar solar cell module to obtain the solar cell module with the curved surface structure, wherein the bending degree of the bearing surface of the mold is consistent.
Further, the preheating temperature of the preheating operation is 80-160 ℃, and the preheating time is 1-20 min.
Further, the preheating temperature is 90 ℃, 100 ℃, 110 ℃, 120 ℃, 130 ℃ and 140 ℃.
Further, the preheating time is 2min, 4min, 6min, 8min, 10min, 15min and 17 min.
Further, the planar solar cell module is fixedly bonded to the mold.
Furthermore, the planar solar cell module is fixed on the mold through a high-temperature resistant adhesive tape or a high-temperature resistant double-sided adhesive.
Furthermore, a first positioning hole is formed in the mold, a second positioning hole is formed in the planar solar cell module, and positioning bolts are arranged in the first positioning hole and the second positioning hole.
Further, the preheating operation and the heating laminating operation are performed in a laminating apparatus, and the preheating operation and the heating laminating operation include the steps of:
placing the mold fixed with the planar solar cell module in the laminating device, and preheating the planar solar cell module;
the heating laminating operation comprises the following steps: and keeping the temperature of the laminating device at 130-180 ℃, simultaneously carrying out heating laminating operation on the preheated planar solar cell module, wherein the laminating time of the heating laminating operation is 1-15min, after the laminating operation is finished, carrying out cooling treatment on the laminated planar solar cell module for 10-60min, and cooling the laminated planar solar cell module to 30-70 ℃ to obtain the solar cell module with the curved surface structure.
Further, the laminating operation comprises the steps of:
and pressurizing the planar solar cell module to ensure that the pressure on the planar solar cell module is stabilized at 0.1-5 standard atmospheric pressures.
Further, the pressure is 0.5, 1, 1.5, 2.5, 3, 4.5 standard atmospheric pressures, the temperature of the laminating device is 135 ℃, 140 ℃, 145 ℃, 150 ℃, 155 ℃, 160 ℃, 165 ℃, 170 ℃, the laminating time is 2min, 4min, 7min, 9min, 12min, the cooling time is 15min, 20min, 30min, 35min, 45min, 55min, and the temperature is finally reduced to 35 ℃, 40 ℃, 45 ℃, 50 ℃, 55 ℃, 60 ℃.
The invention also provides a curved solar cell module which is characterized by being prepared by adopting the laminating method in any one of the schemes.
The technical scheme of the invention has the following advantages:
1. according to the laminating method of the solar cell module, the solar cell module with the curved surface structure is obtained by carrying out secondary laminating on the molded planar solar cell module, and when the planar solar cell module is manufactured into the solar cell module with the curved surface structure, the temperature is only reduced to soften the module without melting the adhesive film, so that the condition that the melted adhesive film flows on the mold with the curved surface and is distributed unevenly is avoided, and the yield is improved. Secondly, because the surface of the molded planar solar cell module is flat, and the surface of the mold has curvature, if the planar solar cell module is directly laminated for the second time, the planar solar cell module is unevenly stressed in the laminating process, and the adhesive film can be extruded or the planar solar cell module is fractured due to sudden stress, and the planar solar cell module has a process of softening in advance by setting a preheating step, so that the occurrence of the condition of extruding or fracturing the adhesive film is avoided.
2. According to the laminating method of the solar cell module, the planar solar cell module is bonded and fixed on the mold, so that the module can be uniformly stressed in the laminating process, and the condition that the module is deformed due to uneven stress is avoided.
3. According to the laminating method of the solar cell module, the first positioning hole is formed in the mold, the second positioning hole is formed in the planar solar cell module, and the positioning bolt is arranged to be matched with the first positioning hole and the second positioning hole, so that the fixing position of the solar cell module can be quickly and accurately determined when the planar solar cell module is fixed.
Drawings
Fig. 1 is a schematic flow chart provided by an embodiment of the present invention.
Detailed Description
The following examples are provided to better understand the present invention, not to limit the best mode, and not to limit the content and scope of the present invention, and any product similar or similar to the present invention, which is obtained by combining the present invention with other prior art features or the teaching of the present invention, falls within the scope of the present invention.
The examples do not show the specific experimental steps or conditions, and the operation or conditions of the conventional experimental steps described in the literature in the field can be performed. The reagents or instruments used are not indicated by manufacturers, and are all conventional reagent products which can be obtained commercially.
Examples 1 to 9
As shown in fig. 1, the present embodiment relates to a method for laminating a solar cell module, including the steps of:
s1, fixing the planar solar cell module on a mold through adhesive tape adhesion.
And S2, placing the mold fixed with the planar solar cell module into a vacuumizing device, then placing the vacuumizing device into a cavity of a laminating device, wherein a laminating machine is selected in the embodiment, and then preheating operation is carried out on the vacuumizing device, wherein the preheating temperature and the preheating time of each embodiment are shown in Table 1.
And S3, heating the laminating machine to keep the temperature of the laminating machine within a certain range, wherein the temperature of the laminating machine is shown in the table 1.
And S4, pressurizing the planar solar cell module by using a vacuumizing device and maintaining for a period of time to laminate, wherein the pressure and the laminating time of the planar solar cell module are shown in the table 1.
And S5, after the lamination is finished, carrying out cooling treatment, and then obtaining the solar battery component with the curvature consistent with that of the surface of the mould, wherein the cooling time and the final temperature of each embodiment are shown in the table 1.
TABLE 1 preheating temperature, preheating time, laminator temperature, lamination time, pressure, final temperature, cooling time for each example
Example 10
The embodiment relates to a laminating method of a solar cell module, and the difference between the embodiment and the embodiment 5 is that in the embodiment, a first positioning hole is formed in a mold, a second positioning hole is formed in a planar solar panel module, and positioning bolts are arranged in the first positioning hole and the second positioning hole.
Comparative example 1
The present comparative example provides a method for preparing a solar cell module having a curved surface structure by one-time lamination, comprising the steps of:
step 1, aligning materials of all layers in a flexible solar cell module, placing the aligned materials on a heating plate of a lower cavity of a laminating machine, and simultaneously vacuumizing an upper cavity and the lower cavity of the laminating machine;
step 3, restoring the upper cavity of the laminating machine to the initial vacuum pressure in the step 1, and simultaneously gradually increasing the pressure in the lower cavity of the laminating machine to an atmospheric pressure;
and 4, opening a lower cavity of the laminating machine to obtain the laminated solar cell module.
Comparative example 2
This comparative example relates to a method of laminating a solar cell module, and is different from example 5 in that a preheating process is not provided in this implementation.
Comparative example 3
This comparative example relates to a lamination method of a solar cell module, and is different from example 5 in that the laminator was raised to 200 ℃ and maintained for 1min to perform lamination.
Comparative example 4
The present comparative example relates to a method of laminating a solar cell module, and is different from example 5 in that a flat solar cell module is fixed to a mold by bolts.
Test examples
Solar cell modules were prepared according to the methods provided in examples 1-10 and comparative examples 1-4, and the yield of the finished products was examined and included in table 2.
Calculation of yield: taking 50 solar cell modules laminated at each time as an example, counting the number of qualified products and calculating the qualified rate, wherein the evaluation index of the qualified products is visual observation, no obvious adhesive film overflows from the edge of the solar cell module, and no obvious air bubbles exist in the module.
TABLE 2 yield of each example and comparative example
According to table 2, the percent of pass of the embodiment is more than 88%, and the percent of pass of the comparative example 2 is 84%, which indicates that the planar solar cell module is directly subjected to secondary lamination, in the lamination process, because the bearing surface of the mold is a curved surface, the planar solar cell module is stressed unevenly, a glue film may be extruded or the planar solar cell module itself may be fractured due to sudden stress, and the planar solar cell module has a process of softening in advance by setting a preheating step, so that the condition that the glue film is extruded or fractured is avoided, and the percent of pass of the finished product is improved. The yield of the embodiment 5 is 94%, and the qualification rate of the comparative example 4 is 72%, which illustrates that when the planar solar cell module is fixed on the mold through the bolts, certain extrusion force is applied to the planar solar cell module by the bolts, so that the phenomenon of uneven stress between the positions where the bolts are fixed on the planar solar cell module and other positions occurs in the lamination process, and the planar solar cell module is adhered and fixed on the mold through the high-temperature-resistant adhesive tape, so that the module can be stressed uniformly in the lamination process, the condition that the module deforms due to uneven stress is avoided, and the yield of the product can be improved.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.
Claims (11)
1. A method of laminating a solar cell module, comprising the steps of:
fixing the planar solar cell module on a mold, setting the bearing surface of the mold into a curved surface, and then sequentially carrying out preheating operation and heating laminating operation on the planar solar cell module to obtain the solar cell module with the curved surface structure, wherein the bending degree of the bearing surface of the mold is consistent with that of the solar cell module.
2. The laminating method according to claim 1, wherein the preheating temperature of the preheating operation is 80 to 160 ℃ and the preheating time is 1 to 20 min.
3. The laminating method according to claim 2, wherein the preheating temperature is 90 ℃, 100 ℃, 110 ℃, 120 ℃, 130 ℃, 140 ℃.
4. The lamination process according to claim 2, wherein the preheating time is 2min, 4min, 6min, 8min, 10min, 15min, 17 min.
5. The lamination method according to claim 1, wherein the planar solar cell module is adhesively fixed to the mold.
6. The laminating method according to claim 5, wherein the planar solar cell module is fixed on the mold by a high temperature resistant adhesive tape or a high temperature resistant double-sided adhesive tape.
7. The laminating method according to claim 6, wherein the mold is provided with a first positioning hole, the planar solar cell module is provided with a second positioning hole, and the first positioning hole and the second positioning hole are provided with positioning pins.
8. The laminating method according to claim 1, wherein the preheating operation and the heating laminating operation are performed in a laminating apparatus, the preheating operation including the steps of: placing the mold fixed with the planar solar cell module in the laminating device, and preheating the planar solar cell module;
the heating laminating operation comprises the following steps: and keeping the temperature of the laminating device at 130-180 ℃, simultaneously, carrying out laminating operation on the preheated planar solar cell module, wherein the laminating time of the laminating operation is 1-15min, after the laminating operation is finished, carrying out cooling treatment on the laminated planar solar cell module for 10-60min, and cooling the laminated planar solar cell module to 30-70 ℃ to obtain the solar cell module with the curved surface structure.
9. The lamination process according to claim 8, wherein the lamination operation comprises the steps of:
and pressurizing the planar solar cell module to ensure that the pressure on the planar solar cell module is stabilized at 0.1-5 standard atmospheric pressures.
10. The laminating method according to claim 9, wherein the pressure is 0.5, 1, 1.5, 2.5, 3, 4.5 atm, the temperature of the laminating device is 135 ℃, 140 ℃, 145 ℃, 150 ℃, 155 ℃, 160 ℃, 165 ℃, 170 ℃, the laminating time is 2min, 4min, 7min, 9min, 12min, the cooling time is 15min, 20min, 30min, 35min, 45min, 55min, the temperature is finally reduced to 35 ℃, 40 ℃, 45 ℃, 50 ℃, 55 ℃, 60 ℃.
11. A solar cell module produced by the lamination method according to any one of claims 1 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811604680.2A CN111434493A (en) | 2018-12-26 | 2018-12-26 | Laminating method of solar cell module and solar cell module |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811604680.2A CN111434493A (en) | 2018-12-26 | 2018-12-26 | Laminating method of solar cell module and solar cell module |
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| CN111434493A true CN111434493A (en) | 2020-07-21 |
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| CN201811604680.2A Pending CN111434493A (en) | 2018-12-26 | 2018-12-26 | Laminating method of solar cell module and solar cell module |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112103372A (en) * | 2020-09-28 | 2020-12-18 | 河北科技师范学院 | Flexible plate pressing type solar cell module laminating machine and laminating method |
| CN112582500A (en) * | 2020-12-08 | 2021-03-30 | 陕西拓日新能源科技有限公司 | Production process of double-glass photovoltaic module |
| CN112713225A (en) * | 2021-01-28 | 2021-04-27 | 南通市乐能电力有限公司 | Processing technology of solar cell module |
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2018
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| JPH07323504A (en) * | 1994-05-31 | 1995-12-12 | Takiron Co Ltd | Transparent composite panel and production thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112103372A (en) * | 2020-09-28 | 2020-12-18 | 河北科技师范学院 | Flexible plate pressing type solar cell module laminating machine and laminating method |
| CN112582500A (en) * | 2020-12-08 | 2021-03-30 | 陕西拓日新能源科技有限公司 | Production process of double-glass photovoltaic module |
| CN112713225A (en) * | 2021-01-28 | 2021-04-27 | 南通市乐能电力有限公司 | Processing technology of solar cell module |
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