CN105322040A - Photovoltaic module and preparation method therefor - Google Patents
Photovoltaic module and preparation method therefor Download PDFInfo
- Publication number
- CN105322040A CN105322040A CN201510430040.4A CN201510430040A CN105322040A CN 105322040 A CN105322040 A CN 105322040A CN 201510430040 A CN201510430040 A CN 201510430040A CN 105322040 A CN105322040 A CN 105322040A
- Authority
- CN
- China
- Prior art keywords
- photovoltaic module
- cell piece
- panel glass
- glass sheet
- adhesive film
- 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
Links
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 238000004806 packaging method and process Methods 0.000 claims abstract description 30
- 239000011521 glass Substances 0.000 claims description 88
- 239000002313 adhesive film Substances 0.000 claims description 29
- 239000011248 coating agent Substances 0.000 claims description 18
- 238000000576 coating method Methods 0.000 claims description 18
- 238000003475 lamination Methods 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 12
- 230000008569 process Effects 0.000 claims description 10
- 229920005549 butyl rubber Polymers 0.000 claims description 9
- 239000011265 semifinished product Substances 0.000 claims description 9
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 8
- 239000012530 fluid Substances 0.000 claims description 8
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 8
- 239000000565 sealant Substances 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 5
- 238000010030 laminating Methods 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 14
- 229910021419 crystalline silicon Inorganic materials 0.000 abstract description 12
- 239000005357 flat glass Substances 0.000 abstract 5
- 230000015556 catabolic process Effects 0.000 abstract 1
- 238000006731 degradation reaction Methods 0.000 abstract 1
- 239000003292 glue Substances 0.000 abstract 1
- 230000006698 induction Effects 0.000 description 9
- 238000013084 building-integrated photovoltaic technology Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 229910001415 sodium ion Inorganic materials 0.000 description 4
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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
- H01L31/0488—Double glass encapsulation, e.g. photovoltaic cells arranged between front and rear glass sheets
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention discloses a photovoltaic module and a preparation method therefor. The photovoltaic module comprises a front plate glass, a back plate glass and a battery piece; the battery piece is connected with the back plate glass through a packaging glue film; a first spacing is between the battery piece and the front plate glass; and a separating gap is formed between the battery piece and the front plate glass. According to the photovoltaic module and the preparation method therefor, the problems that the photovoltaic module cannot effectively solve the potential induced degradation effect of the crystalline silicon battery piece and the photovoltaic module is higher in cost in the prior art are effectively solved.
Description
Technical field
The present invention relates to technical field of solar, in particular to its preparation process of a kind of photovoltaic module and photovoltaic module.
Background technology
Photovoltaic module of the prior art is normal laminate structure, is " front glass sheet+packaging adhesive film EVA+ cell piece+packaging adhesive film EVA+ back-panel glass ", although this structure preparation technology is simple, has the advantages such as good weatherability, has following fault of construction:
One, in high humidity environment under the effect of voltage, potential induction attenuation effect (the PID of crystalline silicon battery plate can be there is in photovoltaic module, PotentialInducedDegradation), at present, mainly through adopting the anti-PIDEVA of high cost, or to sacrifice electricity conversion for cost, plate the methods such as one deck barrier film at battery surface and weaken PID problem, although these methods can strengthen the anti-PID performance of assembly to a certain extent, the problem of PID all thoroughly can not be solved.
Two, the conventional encapsulating structure of photovoltaic module there will be potential induction attenuation effect (PID) problem of crystalline silicon battery plate in application process, so need to do anti-PID process to the cell piece of encapsulation, in the process of anti-PID process, the photoelectric conversion efficiency of battery can lose about 3%, and cell piece production cost also can correspondingly increase.
In sum, prior art photovoltaic module cannot effectively solve the polarity effect of crystalline silicon battery plate and cost is higher.
Summary of the invention
Its preparation process of a kind of photovoltaic module and photovoltaic module is provided in the embodiment of the present invention, effectively cannot solves the polarity effect of crystalline silicon battery plate and the higher problem of cost to solve photovoltaic module in prior art.
For solving the problems of the technologies described above, according to an aspect of the present invention, provide a kind of photovoltaic module, comprise front glass sheet, back-panel glass and cell piece, cell piece is connected to back-panel glass by packaging adhesive film, there is between cell piece and front glass sheet the first spacing, between cell piece and front glass sheet, form external series gap.
Further, have the second spacing between front glass sheet and back-panel glass, the ratio between the second spacing and the first spacing is between 1.01 to 2.
Further, be tightly connected between the edge of front glass sheet and the edge of back-panel glass.
Further, be tightly connected by butyl rubber between the edge of front glass sheet and the edge of back-panel glass.
Further, packaging adhesive film is ethylene-vinyl acetate copolymer.
Further, between back-panel glass and packaging adhesive film, there is reflectance coating.
Further, cell piece is multiple, and multiple cell piece is evenly arranged on packaging adhesive film.
According to another aspect of the present invention, provide a kind of its preparation process of photovoltaic module, comprise the following steps: in back-panel glass, plate reflectance coating; Lay packaging adhesive film by the reflectance coating of the back-panel glass after process, packaging adhesive film lays cell piece, back-panel glass, packaging adhesive film and cell piece are formed and lay lamination; Lay one deck copy paper laying above lamination, and lamination will be laid put into laminating machine and carry out lamination to be prepared into semi-finished product; Sealing area in back-panel glass arranges fluid sealant, semi-finished product and front glass sheet is carried out pressing, there is between cell piece and front glass sheet the first spacing, between cell piece and front glass sheet, form external series gap.
Further, after back-panel glass is plated the step of reflectance coating, further comprising the steps of: to adopt laser to be removed by the reflectance coating in the region needing fluid sealant to carry out sealing in back-panel glass.
Further, fluid sealant is butyl rubber.
Apply technical scheme of the present invention, the laminar structure of photovoltaic module of the present invention is front glass sheet (sensitive surface) successively, external series gap (air layer), cell piece, packaging adhesive film (EVA)+back-panel glass (shady face), owing to having the first spacing between front glass sheet and cell piece, define external series gap (air layer), thoroughly block the movement of the sodium ion in front glass sheet to cell piece, therefore, it is possible to thoroughly solve the problem of the potential induction attenuation effect (PID) of crystalline silicon battery plate, owing to thoroughly solving the problem of the potential induction attenuation effect (PID) of crystalline silicon battery plate from modular construction, therefore, cell piece is without the need to doing anti-PID process again, not only increase battery efficiency and also reduce production cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of the photovoltaic module of the embodiment of the present invention;
Fig. 2 is the semi-finished product structure schematic diagram in the photovoltaic module preparation of the embodiment of the present invention;
Fig. 3 is the schematic flow sheet of its preparation process of the photovoltaic module of the embodiment of the present invention.
Description of reference numerals:
10, front glass sheet; 20, back-panel glass; 30, cell piece; 40, packaging adhesive film; 50, external series gap; 60, butyl rubber.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail, but not as a limitation of the invention.
Find through research, in prior art, the photovoltaic module of normal laminate structure produces the potential induction attenuation effect (PID of crystalline silicon battery plate, PotentialInducedDegradation) reason of problem is, in high humidity environment under the effect of voltage, caused by the sodium ions of header board inside glass to cell piece surface.
Shown in Figure 1, according to embodiments of the invention, photovoltaic module comprises front glass sheet 10, back-panel glass 20 and cell piece 30, cell piece 30 is connected to back-panel glass 20 by packaging adhesive film 40, there is between cell piece 30 and front glass sheet 10 first spacing, between cell piece 30 and front glass sheet 10, form external series gap 50.
The laminar structure of photovoltaic module of the present invention is front glass sheet (sensitive surface) successively, external series gap (air layer), cell piece, packaging adhesive film (EVA)+back-panel glass (shady face), owing to having the first spacing between front glass sheet and cell piece, define external series gap (air layer), thoroughly block the movement of the sodium ion in front glass sheet to cell piece, therefore, it is possible to thoroughly solve the problem of the potential induction attenuation effect (PID) of crystalline silicon battery plate, owing to thoroughly solving the problem of the potential induction attenuation effect (PID) of crystalline silicon battery plate from modular construction, therefore, cell piece is without the need to doing anti-PID process again, not only increase battery efficiency and also reduce production cost.
Moreover, photovoltaic module itself has hollow structure, so doing hollow structure for during the BIPV such as photovoltaic roof, photovoltaic curtain wall project without the need to increasing glass again, this structure of the present invention is used for BIPV project not only can reduce BIPV lightweight packages, can also reduce BIPV assembly cost.
See Fig. 1, in the present embodiment, between front glass sheet 10 and back-panel glass 20, there is the second spacing, ratio between second spacing and the first spacing is 2, also just say, in the space formed between front glass sheet 10 and back-panel glass 20, wherein half is used as to install cell piece 30 and packaging adhesive film 40, and the space reserving half forms external series gap 50.At some in other embodiment, other numerical value between 1.01 to 2 of the ratio between the second spacing and the first spacing.
Be tightly connected between the edge of front glass sheet 10 and the edge of back-panel glass 20.Further preferably, be tightly connected by butyl rubber 60 between the edge of glass sheet 10 and the edge of back-panel glass 20 before in the present embodiment.According to other concrete needs, front glass sheet 10 and back-panel glass 20 also can be sealed by other materials, repeat no more herein.
Packaging adhesive film 40 is ethylene-vinyl acetate copolymer.Between back-panel glass and packaging adhesive film 40, there is reflectance coating.Cell piece 30 is multiple, and multiple cell piece 30 is evenly arranged on packaging adhesive film 40.
The preparation process of the photovoltaic module of the present embodiment is as follows:
First in back-panel glass 20, plate reflectance coating, then adopt laser to be removed by the reflectance coating in the region needing butyl rubber to seal.Then the back-panel glass 20 behind clear limit, packaging adhesive film 40, cell piece 30 are laid successively and lay lamination to be formed, lay facing up of cell piece 30 on lamination, after laying and laying one deck copy paper above lamination, lamination is put into laminating machine and carries out lamination, be prepared into semi-finished product as shown in Figure 2.
Then, adopt the similar mode preparing double glazing to press together semi-finished product as shown in Figure 2 and front glass sheet 10, form the photovoltaic module of the present embodiment after pressing, the cross-section structure of the photovoltaic module after preparation as shown in Figure 1.
See Fig. 3, present invention also offers a kind of embodiment of its preparation process of photovoltaic module, its preparation process of the present embodiment comprises the following steps:
Step S10: plate reflectance coating in back-panel glass;
Step S20: lay packaging adhesive film by the reflectance coating of the back-panel glass after process, packaging adhesive film lays cell piece, back-panel glass, packaging adhesive film and cell piece are formed and lay lamination, and the surface of cell piece is arranged upward;
Step S30: lay one deck copy paper laying above lamination, and lamination will be laid put into laminating machine and carry out lamination to be prepared into semi-finished product, half-finished structure is as shown in Figure 2;
Step S40: the sealing area in back-panel glass arranges fluid sealant, semi-finished product and front glass sheet are carried out pressing, there is between cell piece and front glass sheet the first spacing, external series gap is formed between cell piece and front glass sheet, fluid sealant is butyl rubber, finally obtains photovoltaic module as shown in Figure 1.
By the photovoltaic module that its preparation process of the present embodiment obtains, its laminar structure is front glass sheet (sensitive surface) successively, external series gap (air layer), cell piece, packaging adhesive film (EVA)+back-panel glass (shady face), owing to having the first spacing between front glass sheet and cell piece, define external series gap (air layer), thoroughly block the movement of the sodium ion in front glass sheet to cell piece, therefore, it is possible to thoroughly solve the problem of the potential induction attenuation effect (PID) of crystalline silicon battery plate, owing to thoroughly solving the problem of the potential induction attenuation effect (PID) of crystalline silicon battery plate from modular construction, therefore, cell piece is without the need to doing anti-PID process again, not only increase battery efficiency and also reduce production cost.
After back-panel glass is plated the step of reflectance coating, further comprising the steps of: to adopt laser to be removed by the reflectance coating in the region needing butyl rubber to seal in back-panel glass.To after removing reflectance coating in this region, perform step S20.
Certainly, be more than the preferred embodiment of the present invention.It should be pointed out that for those skilled in the art, under the prerequisite not departing from its general principles, can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (10)
1. a photovoltaic module, comprise front glass sheet (10), back-panel glass (20) and cell piece (30), described cell piece (30) is connected to described back-panel glass (20) by packaging adhesive film (40), it is characterized in that, between described cell piece (30) and described front glass sheet (10), there is the first spacing, between described cell piece (30) and described front glass sheet (10), form external series gap (50).
2. photovoltaic module according to claim 1, it is characterized in that, have the second spacing between described front glass sheet (10) and described back-panel glass (20), the ratio between described second spacing and described first spacing is between 1.01 to 2.
3. photovoltaic module according to claim 1, is characterized in that, is tightly connected between the edge of described front glass sheet (10) and the edge of described back-panel glass (20).
4. photovoltaic module according to claim 3, is characterized in that, is tightly connected between the edge of described front glass sheet (10) and the edge of described back-panel glass (20) by butyl rubber (60).
5. photovoltaic module according to claim 1, is characterized in that, described packaging adhesive film (40) is ethylene-vinyl acetate copolymer.
6. photovoltaic module according to claim 5, is characterized in that, has reflectance coating between described back-panel glass and described packaging adhesive film (40).
7. photovoltaic module according to claim 1, is characterized in that, described cell piece (30) is for multiple, and multiple described cell piece (30) is evenly arranged on described packaging adhesive film (40).
8. an its preparation process for photovoltaic module, is characterized in that, comprises the following steps:
Back-panel glass plates reflectance coating;
Lay packaging adhesive film by the reflectance coating of the described back-panel glass after process, described packaging adhesive film lays cell piece, described back-panel glass, described packaging adhesive film and described cell piece are formed and lay lamination;
Lay one deck copy paper described laying above lamination, and the described lamination that lays is put into laminating machine and carried out lamination to be prepared into semi-finished product;
Sealing area in described back-panel glass arranges fluid sealant, described semi-finished product and front glass sheet are carried out pressing, between described cell piece and described front glass sheet, there is the first spacing, between described cell piece and described front glass sheet, form external series gap.
9. its preparation process according to claim 8, it is characterized in that, described in back-panel glass, plate the step of reflectance coating after, further comprising the steps of: adopt laser by described back-panel glass, need fluid sealant to carry out sealing region in reflectance coating remove.
10. its preparation process according to claim 9, is characterized in that, described fluid sealant is butyl rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510430040.4A CN105322040A (en) | 2015-07-21 | 2015-07-21 | Photovoltaic module and preparation method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510430040.4A CN105322040A (en) | 2015-07-21 | 2015-07-21 | Photovoltaic module and preparation method therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105322040A true CN105322040A (en) | 2016-02-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510430040.4A Pending CN105322040A (en) | 2015-07-21 | 2015-07-21 | Photovoltaic module and preparation method therefor |
Country Status (1)
| Country | Link |
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| CN (1) | CN105322040A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107154442A (en) * | 2016-03-03 | 2017-09-12 | 苏州升奥新能源有限公司 | A kind of completely anti-PID light components of Frameless type crystal silicon battery |
| CN107887462A (en) * | 2017-10-27 | 2018-04-06 | 珠海格力电器股份有限公司 | A kind of photovoltaic module and preparation method thereof |
| CN108376719A (en) * | 2018-04-19 | 2018-08-07 | 安徽六和同心风能设备有限公司 | A kind of packaging technology of photovoltaic module and the photovoltaic module |
| WO2023207494A1 (en) * | 2022-04-28 | 2023-11-02 | 安徽华晟新能源科技有限公司 | Method for manufacturing solar cell module |
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| CN204230263U (en) * | 2014-09-26 | 2015-03-25 | 中利腾晖光伏科技有限公司 | A kind of anti-PID crystal silicon solar battery component |
| CN204424284U (en) * | 2015-03-27 | 2015-06-24 | 阿特斯(中国)投资有限公司 | A kind of weather resistant photovoltaic module |
| CN205050846U (en) * | 2015-07-21 | 2016-02-24 | 珠海格力电器股份有限公司 | Photovoltaic module |
-
2015
- 2015-07-21 CN CN201510430040.4A patent/CN105322040A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202259322U (en) * | 2011-10-21 | 2012-05-30 | 浚鑫科技股份有限公司 | Solar battery component |
| CN103346180A (en) * | 2013-05-29 | 2013-10-09 | 中山大学 | Color crystalline silicon solar cell module and preparation method thereof |
| CN204230263U (en) * | 2014-09-26 | 2015-03-25 | 中利腾晖光伏科技有限公司 | A kind of anti-PID crystal silicon solar battery component |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107154442A (en) * | 2016-03-03 | 2017-09-12 | 苏州升奥新能源有限公司 | A kind of completely anti-PID light components of Frameless type crystal silicon battery |
| CN107887462A (en) * | 2017-10-27 | 2018-04-06 | 珠海格力电器股份有限公司 | A kind of photovoltaic module and preparation method thereof |
| CN108376719A (en) * | 2018-04-19 | 2018-08-07 | 安徽六和同心风能设备有限公司 | A kind of packaging technology of photovoltaic module and the photovoltaic module |
| CN108376719B (en) * | 2018-04-19 | 2019-10-15 | 安徽六和同心风能设备有限公司 | A kind of packaging technology of photovoltaic module and the photovoltaic module |
| WO2023207494A1 (en) * | 2022-04-28 | 2023-11-02 | 安徽华晟新能源科技有限公司 | Method for manufacturing solar cell module |
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Application publication date: 20160210 |
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