CN105322040A - Photovoltaic module and process preparation method thereof - Google Patents

Photovoltaic module and process preparation method thereof Download PDF

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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
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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
Application number
CN201510430040.4A
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Chinese (zh)
Inventor
闫德霖
刘洪明
张礼杰
黄小龙
林家辉
曹文兵
赵志刚
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Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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 Gree Electric Appliances Inc of Zhuhai filed Critical Gree Electric Appliances Inc of Zhuhai
Priority to CN201510430040.4A priority Critical patent/CN105322040A/en
Publication of CN105322040A publication Critical patent/CN105322040A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00Semiconductor 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
    • H01L31/04Semiconductor 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
    • H01L31/042PV modules or arrays of single PV cells
    • H01L31/048Encapsulation of modules
    • H01L31/0488Double glass encapsulation, e.g. photovoltaic cells arranged between front and rear glass sheets
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00Semiconductor 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
    • H01L31/18Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product

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  • 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 provides a photovoltaic module and a process preparation method of the photovoltaic module, wherein the photovoltaic module comprises front plate glass, back plate glass and a battery piece, the battery piece is connected with the back plate glass through a packaging adhesive film, a first distance is formed between the battery piece and the front plate glass, and an isolation gap is formed between the battery piece and the front plate glass. The photovoltaic module and the process preparation method of the photovoltaic module effectively solve the problems that the photovoltaic module in the prior art cannot effectively solve the potential induced attenuation effect of the crystalline silicon cell and is high in cost.

Description

Its preparation process of photovoltaic module and photovoltaic module
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.
CN201510430040.4A 2015-07-21 2015-07-21 Photovoltaic module and process preparation method thereof Pending CN105322040A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
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 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

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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

Cited By (5)

* Cited by examiner, † Cited by third party
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 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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