CN204067387U - A kind of photovoltaic module of anti-PID effect - Google Patents
A kind of photovoltaic module of anti-PID effect Download PDFInfo
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- CN204067387U CN204067387U CN201420507714.7U CN201420507714U CN204067387U CN 204067387 U CN204067387 U CN 204067387U CN 201420507714 U CN201420507714 U CN 201420507714U CN 204067387 U CN204067387 U CN 204067387U
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- encapsulated layer
- cell piece
- barrier layer
- backboard
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- 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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Abstract
A kind of photovoltaic module of anti-PID effect, comprise module frame, the photovoltaic glass of lamination, cell piece and backboard successively in the mounting groove being arranged at module frame, in mounting groove, fluid sealant is set, the first encapsulated layer is provided with between photovoltaic glass and cell piece, be provided with the second encapsulated layer between described cell piece and backboard, described first encapsulated layer is identical with the material of the second encapsulated layer; Described encapsulated layer comprises the first tack coat and second tack coat of barrier layer and barrier layer both sides, and described barrier layer is the polyolefin barrier layer containing ethylene-alpha-olefin polymers, and described tack coat is ethylene-vinyl acetate copolymer.Barrier layer of the present utility model can stop aqueous vapor to enter into photovoltaic module inside by backboard; This structure also can slow down the migration velocity of sodium ion; Effectively solve the potential induction attenuation phenomenon that assembly occurs under hygrothermal environment from two aspects, improve the useful life of photovoltaic module simultaneously.
Description
Technical field
The utility model relates to a kind of solar photovoltaic assembly, is specifically related to a kind of photovoltaic module of anti-PID effect.
Background technology
All there is " potential inducing decay " PID problem in current photovoltaic plant both domestic and external, becomes assembly factory and meet with the technical barrier of complaining reparation of even returning goods.Some power station actual motions show: photovoltaic module uses for a long time under high pressure hygrothermal environment, aqueous vapor enters in assembly by backboard, water causes now widely used EVA be hydrolyzed generation acetic acid and produce the sodium ion that can move freely with the alkali reaction that glass surface is separated out, then a large amount of sodium ion is moved to battery surface in the effect of electric field, cell piece surface passivation effect is worsened, loop leakage current can be formed between glass, encapsulating material, cell piece, backboard and module frame, the power of photovoltaic module is caused significantly to be decayed, i.e. PID phenomenon.
Summary of the invention
The barrier layer that the utility model provides in a kind of photovoltaic module, particularly the first and second encapsulating materials of anti-PID effect can stop aqueous vapor to enter into photovoltaic module inside by backboard; This structure also can slow down the migration velocity of sodium ion; Effectively solve the potential induction attenuation phenomenon that assembly occurs under hygrothermal environment from two aspects, improve the useful life of photovoltaic module simultaneously.
Technical solution of the present utility model is:
A photovoltaic module for anti-PID effect, comprises module frame, the photovoltaic glass of lamination, cell piece and backboard successively in the mounting groove being arranged at module frame, and arrange fluid sealant in described mounting groove, its special character is:
Be provided with the first encapsulated layer between described photovoltaic glass and cell piece, be provided with the second encapsulated layer between described cell piece and backboard, described first encapsulated layer is identical with the material of the second encapsulated layer; Described encapsulated layer comprises the first tack coat and second tack coat of barrier layer and barrier layer both sides, and described barrier layer is the polyolefin barrier layer containing ethylene-alpha-olefin polymers, and described tack coat is ethylene-vinyl acetate copolymer.
Above-mentioned fluid sealant is filled full of mounting groove internal clearance, described fluid sealant specifically polydimethylsiloxanecopolymer copolymer.
Said modules frame is aluminum alloy frame.
In a heated condition, encapsulated layer material reaches certain temperature and can melt above-mentioned encapsulated layer, and this temperature is generally 140 DEG C ~ 150 DEG C, then etc. make after solidification together with photovoltaic glass firmly bonds with cell piece, between cell piece with backboard.
The assembly encapsulation structure that the utility model provides, the particularly structure of the first and second encapsulated layers, the barrier layer in encapsulating material can stop aqueous vapor to enter into photovoltaic module inside by backboard.Also have sub-fraction aqueous vapor can enter into assembly by frame, then chemical reaction occurs and makes sodium ion gather cell piece surface, this structure also can slow down the migration velocity of sodium ion.Effectively can solve the potential induction attenuation phenomenon that assembly occurs under hygrothermal environment like this from two aspects, improve the useful life of photovoltaic module simultaneously.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model encapsulated layer schematic diagram.
Drawing reference numeral illustrates: 1-module frame; 2-fluid sealant; 3-photovoltaic glass; 4-the first encapsulated layer; 5-cell piece; 6-the second encapsulated layer; 7-backboard; 8-the first tack coat; 9---barrier layer; 10-the second tack coat.
Embodiment
See Fig. 1 and Fig. 2, a kind of photovoltaic module of anti-PID effect, comprise module frame 1, the photovoltaic glass 3 of lamination, cell piece 5 and backboard 7 successively in the mounting groove being arranged at module frame 1, fluid sealant 2 is set in described mounting groove, be provided with the first encapsulated layer 4 between described photovoltaic glass 3 and cell piece 5, be provided with the second encapsulated layer 6 between described cell piece 5 and backboard 7, described first encapsulated layer 4 is identical with the material of the second encapsulated layer 6; Described encapsulated layer comprises the first tack coat 8 and the second tack coat 10 of barrier layer 9 and barrier layer 9 both sides, and described barrier layer 9 is the polyolefin barrier layer containing ethylene-alpha-olefin polymers, and described tack coat is ethylene-vinyl acetate copolymer.
Fluid sealant 2 is filled full of mounting groove internal clearance, described fluid sealant 2 specifically polydimethylsiloxanecopolymer copolymer.
Module frame 1 is aluminum alloy frame.
In a heated condition, encapsulated layer material reaches certain temperature and can melt encapsulated layer, then etc. make after solidification together with photovoltaic glass 3 firmly bonds with cell piece 5, between cell piece 5 with backboard 7.
The assembly encapsulation structure that the utility model provides, the particularly structure of the first and second encapsulating materials, the barrier layer in encapsulating material can stop aqueous vapor to enter into photovoltaic module inside by backboard.Also have sub-fraction aqueous vapor can enter into assembly by frame, then chemical reaction occurs and makes sodium ion gather cell piece surface, this structure also can slow down the migration velocity of sodium ion.Effectively can solve the potential induction attenuation phenomenon that assembly occurs under hygrothermal environment like this from two aspects, improve the useful life of photovoltaic module simultaneously.
Fluid sealant 2 described in structure uses polydimethylsiloxanecopolymer copolymer, and its effect is exactly prevent aqueous vapor by entering into component internal around frame.The effect of described encapsulated layer is in a heated condition, encapsulating material reaches certain temperature and can melt, be generally 140 DEG C ~ 150 DEG C, make photovoltaic glass 3 and cell piece 5 after waiting solidification, bond firmly between cell piece 5 and backboard 7, improve the useful life of battery component.All 5 encapsulate in the levels of cell piece 5, one is aqueous vapor can enter into component internal by backboard bottom barrier assembly, has the effect of anti-PID effect; Two is to slow down the speed of the sodium ions owing to obtaining after generation chemical reaction to cell piece surface.
Claims (4)
1. the photovoltaic module of an anti-PID effect, comprise module frame (1), the photovoltaic glass (3) of lamination, cell piece (5) and backboard (7) successively in the mounting groove being arranged at module frame (1), arrange fluid sealant (2), it is characterized in that in described mounting groove:
Be provided with the first encapsulated layer (4) between described photovoltaic glass (3) and cell piece (5), be provided with the second encapsulated layer (6) between described cell piece (5) and backboard (7), described first encapsulated layer (4) is identical with the material of the second encapsulated layer (6); Described encapsulated layer comprises first tack coat (8) of barrier layer (9) and barrier layer (9) both sides and the second tack coat (10), described barrier layer (9) is the polyolefin barrier layer containing ethylene-alpha-olefin polymers, and described tack coat is ethylene-vinyl acetate copolymer.
2. the photovoltaic module of anti-PID effect according to claim 1, is characterized in that: described fluid sealant (2) is filled full of mounting groove internal clearance, described fluid sealant (2) specifically polydimethylsiloxanecopolymer copolymer.
3. the photovoltaic module of anti-PID effect according to claim 1 or 2, is characterized in that: described module frame (1) is aluminum alloy frame.
4. the photovoltaic module of anti-PID effect according to claim 3, it is characterized in that: described encapsulated layer in a heated condition, encapsulated layer material reaches certain temperature and can melt, then etc. make after solidification together with photovoltaic glass (3) firmly bonds with cell piece (5), between cell piece (5) with backboard (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420507714.7U CN204067387U (en) | 2014-09-04 | 2014-09-04 | A kind of photovoltaic module of anti-PID effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420507714.7U CN204067387U (en) | 2014-09-04 | 2014-09-04 | A kind of photovoltaic module of anti-PID effect |
Publications (1)
| Publication Number | Publication Date |
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| CN204067387U true CN204067387U (en) | 2014-12-31 |
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| CN201420507714.7U Expired - Fee Related CN204067387U (en) | 2014-09-04 | 2014-09-04 | A kind of photovoltaic module of anti-PID effect |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105304740A (en) * | 2015-10-12 | 2016-02-03 | 友达光电股份有限公司 | Photovoltaic conversion module |
| CN105470336A (en) * | 2015-12-31 | 2016-04-06 | 江苏宇兆能源科技有限公司 | Novel solar photovoltaic module resistant to proportion integration differentiation (PID) effect |
| CN106469762A (en) * | 2016-12-01 | 2017-03-01 | 梁结平 | A kind of solar module of anti-PID effect |
| CN108231916A (en) * | 2017-12-07 | 2018-06-29 | 青海黄河上游水电开发有限责任公司光伏产业技术分公司 | A kind of photovoltaic module of resisting potential induced degradation |
| CN109301012A (en) * | 2018-10-09 | 2019-02-01 | 黄石金能光伏有限公司 | Anti- PID photovoltaic module and its preparation process |
| CN109962123A (en) * | 2017-12-20 | 2019-07-02 | 镇江华尔科通信有限公司 | A kind of anti-PID photovoltaic module |
| CN114765226A (en) * | 2021-05-24 | 2022-07-19 | 北京劲吾新能源科技有限公司 | Colored photovoltaic module for slowing down degradation of UV (ultraviolet) ink and manufacturing method thereof |
-
2014
- 2014-09-04 CN CN201420507714.7U patent/CN204067387U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105304740A (en) * | 2015-10-12 | 2016-02-03 | 友达光电股份有限公司 | Photovoltaic conversion module |
| CN105470336A (en) * | 2015-12-31 | 2016-04-06 | 江苏宇兆能源科技有限公司 | Novel solar photovoltaic module resistant to proportion integration differentiation (PID) effect |
| CN105470336B (en) * | 2015-12-31 | 2017-06-09 | 江苏宇兆能源科技有限公司 | A kind of solar energy photovoltaic component of anti-PID effects |
| CN106469762A (en) * | 2016-12-01 | 2017-03-01 | 梁结平 | A kind of solar module of anti-PID effect |
| CN108231916A (en) * | 2017-12-07 | 2018-06-29 | 青海黄河上游水电开发有限责任公司光伏产业技术分公司 | A kind of photovoltaic module of resisting potential induced degradation |
| CN108231916B (en) * | 2017-12-07 | 2023-11-10 | 青海黄河上游水电开发有限责任公司光伏产业技术分公司 | Photovoltaic module resistant to potential induction attenuation |
| CN109962123A (en) * | 2017-12-20 | 2019-07-02 | 镇江华尔科通信有限公司 | A kind of anti-PID photovoltaic module |
| CN109301012A (en) * | 2018-10-09 | 2019-02-01 | 黄石金能光伏有限公司 | Anti- PID photovoltaic module and its preparation process |
| CN114765226A (en) * | 2021-05-24 | 2022-07-19 | 北京劲吾新能源科技有限公司 | Colored photovoltaic module for slowing down degradation of UV (ultraviolet) ink and manufacturing method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141231 Termination date: 20170904 |
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| CF01 | Termination of patent right due to non-payment of annual fee |