CN205845972U - The solar module of anti-current potential induction attenuation effect - Google Patents
The solar module of anti-current potential induction attenuation effect Download PDFInfo
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- CN205845972U CN205845972U CN201620821787.2U CN201620821787U CN205845972U CN 205845972 U CN205845972 U CN 205845972U CN 201620821787 U CN201620821787 U CN 201620821787U CN 205845972 U CN205845972 U CN 205845972U
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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
The utility model discloses the solar module of a kind of anti-current potential induction attenuation effect, include successively to the back side from front: glass, front-sheet encapsulant layer, solar battery sheet, back-sheet encapsulant layer and backboard；Wherein, described back-sheet encapsulant layer is high cut-off type POE encapsulated layer, and described front-sheet encapsulant layer is high-transparency EVA encapsulated layer.By being high cut-off type POE encapsulated layer by back-sheet encapsulant layer, owing to POE main component is ethylene and the copolymer of hydrocarbon alkene, because structure is formed by C C key and C H key, do not contain C=O or other unsaturated double-bond, no acidic substance release, and specific insulation than EVA high about one to two orders of magnitude, water vapor transmittance is low about an order of magnitude than EVA, thus has good anti-PID performance.Further, front-sheet encapsulant layer of the present utility model uses high-transparency EVA encapsulated layer, and for front-sheet encapsulant layer uses high-transparency POE encapsulated layer, finished product power of the present utility model is higher, and low cost.
Description
Technical field
This utility model relates to technical field of solar cell manufacturing, particularly relates to a kind of anti-current potential induction attenuation effect
Solar module.
Background technology
Photovoltaic generation is current one of major way utilizing solar energy, and solar energy power generating is because of its cleaning, safety, just
Profit, the feature such as efficiently, it has also become countries in the world common concern and the new industry given priority to.Therefore, further investigate and utilize
Solar energy resources, is of great significance alleviation crisis of resource, tool of improving the ecological environment.
But, current potential induction attenuation effect (PID, Potential Induced Degradation) but severely impacts
The life-span of solaode and performance.PID effect found as far back as 2005, referred to solar module outer shroud out of office
Under border and action of high voltage, due to high temperature, humidity and inverter array ground mode, the solar module caused is serious
Corrosion and the decay of power.
It is generally acknowledged that battery is to cause electricity through the leakage current that the path that encapsulating material and module frame are formed is caused
The main cause of gesture induced attenuation phenomenon, this just determines encapsulating material and cell piece and plays key in potential induction attenuation
Effect.The most traditional Crystalline Silicon PV Module mostly encapsulates with EVA, does not the most have anti-PID performance, even if there being part anti-
PID effect, but effect is the most inconspicuous；Preparation for cell piece the most also only focuses on the raising of efficiency, seldom examines
Consider the anti-PID performance of cell piece.
In order to solve the problem of PID in prior art, there is following way at present:
Equipment is transformed by the PECVD operation at battery, introduces O3 or N2O and relevant technique, enters PECVD film layer
Row improves, and reaches the anti-PID effect of solar module.But the shortcoming that this way exists is:
1) scrap build somewhat expensive；
2) introduce O3 or N2O and relevant technique, cell photoelectric conversion efficiency is existed impact；
3) there is certain potential safety hazard in O3 or N2O gas.
Utility model content
The purpose of this utility model is to provide the solar module of a kind of anti-current potential induction attenuation effect, to reduce
The PID effect of solar module.
For achieving the above object, the technical solution adopted in the utility model is as follows:
The solar module of a kind of anti-current potential induction attenuation effect, includes to the back side successively from front: glass, front
Encapsulated layer, solar battery sheet, back-sheet encapsulant layer and backboard；Wherein, described back-sheet encapsulant layer is high cut-off type POE encapsulation
Layer, described front-sheet encapsulant layer is high-transparency EVA encapsulated layer.
In an embodiment of the present utility model, the thickness of described high cut-off type POE encapsulated layer is 0.5 ± 0.04mm.
In an embodiment of the present utility model, the one side of described glass contact air is provided with anti-reflection film.
This utility model, owing to using above technical scheme, is allowed to compared with prior art, has the following advantages that and amass
Pole effect:
1) solar module of the anti-current potential induction attenuation effect that this utility model provides, by by back-sheet encapsulant layer
For high cut-off type POE encapsulated layer, POE is also known as polyolefin, and its main component is ethylene and the copolymer of hydrocarbon alkene, because structure is by C-
C key and c h bond composition, do not contain C=O or other unsaturated double-bond, no acidic substance release, and specific insulation and compare EVA
High about one to two orders of magnitude, water vapor transmittance is low about an order of magnitude than EVA, thus has good anti-PID performance.
2) for front-sheet encapsulant layer is set to high-transparency POE encapsulated layer, front-sheet encapsulant layer of the present utility model
Using high-transparency EVA encapsulated layer, this is owing to the light transmittance of high-transparency POE is less than high-transparency EVA, if therefore front-sheet encapsulant layer is adopted
Component package loss can be caused to raise with high-transparency POE, finished product power reduces.And the cost of high-transparency POE encapsulated layer is the highest
In high-transparency EVA encapsulated layer.
Accompanying drawing explanation
The structure of the solar module of the anti-current potential induction attenuation effect that Fig. 1 provides for this utility model embodiment is quick-fried
Fried schematic diagram.
Label declaration:
1-glass, 2-front-sheet encapsulant layer, 3-solar battery sheet, 4-back-sheet encapsulant layer, 5-backboard
Detailed description of the invention
Solar energy below in conjunction with the drawings and specific embodiments anti-current potential induction attenuation effect to the utility model proposes
Battery component is described in further detail.According to following explanation and claims, advantage of the present utility model and feature will more
Clear.It should be noted that, accompanying drawing all uses the form simplified very much and all uses non-ratio accurately, is only used for conveniently, distinct
Ground aids in illustrating the purpose of this utility model embodiment.
Refer to Fig. 1, as it is shown in figure 1, the anti-current potential that this utility model provides induces the solar battery group of attenuation effect
Part includes to the back side successively from front: glass 1, front-sheet encapsulant layer 2, solar battery sheet 3, back-sheet encapsulant layer 4 and backboard 5；
Wherein, it is high cut-off type POE encapsulated layer that the described back side encapsulates 4 layers, and described front-sheet encapsulant layer 2 is high-transparency EVA encapsulated layer.
The solar module of the anti-current potential induction attenuation effect that this utility model provides, by by back-sheet encapsulant layer being
High cut-off type POE encapsulated layer, POE is also known as polyolefin, and its main component is ethylene and the copolymer of hydrocarbon alkene, because structure is by C-C
Key and c h bond composition, do not contain C=O or other unsaturated double-bond, no acidic substance release, and specific insulation be higher than EVA
About one to two orders of magnitude, water vapor transmittance is low about an order of magnitude than EVA, thus has good anti-PID performance.And pass
The back-sheet encapsulant layer of system is high cut-off type EVA encapsulated layer, and the main component of EVA is the copolymer of ethylene and vinylacetate, because of
Structure C=O Han unsaturated double-bond, easy light, heat, the impact of dampness and decompose or aoxidize the free acetic acid of generation, and material volume
The important indicator performance that resistivity is relevant to PID with water vapor transmittance two is general.
Further, for front-sheet encapsulant layer is set to high-transparency POE encapsulated layer, front of the present utility model encapsulates
Layer uses high-transparency EVA encapsulated layer, and this is owing to the light transmittance of high-transparency POE is less than high-transparency EVA, if therefore front-sheet encapsulant layer
Using high-transparency POE that component package loss can be caused to raise, finished product power reduces.And the cost of high-transparency POE encapsulated layer is remote
Higher than high-transparency EVA encapsulated layer.
Further, the thickness of described high cut-off type POE encapsulated layer is 0.5 ± 0.04mm.
Preferably, the one side of described glass 1 ingress of air is provided with anti-reflection film.To improve luminous energy further
Conversion efficiency.
The manufacturing process of the solar module of the anti-current potential induction attenuation effect that this utility model provides is as follows:
First, high-transparency EVA material is layed in glass surface；
Then, solar battery sheet is layed in high-transparency EVA material surface；
Then, by high cut-off type POE material-paving in solar battery sheet surface；
Then, backboard is layed in high cut-off type POE material surface；
Finally, above-mentioned parts laying completed are positioned over laminating machine and are laminated, and laminating technology is for EVA's and POE
Material is used situation with and is carried out the adjustment of correspondence, makes laminate.
Other operations are identical with conventional solar module.
The solar module using this kind of method to make, on the premise of battery-end is not transformed, can meet
(test condition is-1000V voltage, and 85 degrees Celsius, 85% relative humidity, 96 is little in double 85 anti-PID tests of IEC62804 standard
Time).
In sum, this utility model provides the solar module of a kind of anti-current potential induction attenuation effect, from just
Face includes successively to the back side: glass, front-sheet encapsulant layer, solar battery sheet, back-sheet encapsulant layer and backboard；Wherein, the described back of the body
Face encapsulated layer is high cut-off type POE encapsulated layer, and described front-sheet encapsulant layer is high-transparency EVA encapsulated layer.By by back-sheet encapsulant layer
For high cut-off type POE encapsulated layer, POE is also known as polyolefin, and its main component is ethylene and the copolymer of hydrocarbon alkene, because structure is by C-
C key and c h bond composition, do not contain C=O or other unsaturated double-bond, no acidic substance release, and specific insulation and compare EVA
High about one to two orders of magnitude, water vapor transmittance is low about an order of magnitude than EVA, thus has good anti-PID performance.And
And, front-sheet encapsulant layer of the present utility model uses high-transparency EVA encapsulated layer, uses high-transparency POE envelope relative to front-sheet encapsulant layer
For dress layer, finished product power of the present utility model is higher, and low cost.
Obviously, those skilled in the art can carry out various change and modification without deviating from this practicality newly to utility model
The spirit and scope of type.So, if of the present utility model these amendment and modification belong to this utility model claim and
Within the scope of equivalent technologies, then this utility model is also intended to comprise these change and modification.
Claims (3)
1. the solar module of an anti-current potential induction attenuation effect, it is characterised in that include successively to the back side from front:
Glass, front-sheet encapsulant layer, solar battery sheet, back-sheet encapsulant layer and backboard；Wherein, described back-sheet encapsulant layer is high cut-off type
POE encapsulated layer, described front-sheet encapsulant layer is high-transparency EVA encapsulated layer.
The solar module of anti-current potential the most as claimed in claim 1 induction attenuation effect, it is characterised in that described height cuts
Only the thickness of type POE encapsulated layer is 0.5 ± 0.04mm.
The solar module of anti-current potential the most as claimed in claim 1 induction attenuation effect, it is characterised in that described glass
The one side of ingress of air is provided with anti-reflection film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620821787.2U CN205845972U (en) | 2016-08-01 | 2016-08-01 | The solar module of anti-current potential induction attenuation effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620821787.2U CN205845972U (en) | 2016-08-01 | 2016-08-01 | The solar module of anti-current potential induction attenuation effect |
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| Publication Number | Publication Date |
|---|---|
| CN205845972U true CN205845972U (en) | 2016-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620821787.2U Active CN205845972U (en) | 2016-08-01 | 2016-08-01 | The solar module of anti-current potential induction attenuation effect |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110176514A (en) * | 2019-07-03 | 2019-08-27 | 浙江晶科能源有限公司 | A kind of two-sided photovoltaic module and photovoltaic system |
| WO2020233036A1 (en) * | 2019-05-17 | 2020-11-26 | 苏州大学 | Photovoltaic battery assembly |
-
2016
- 2016-08-01 CN CN201620821787.2U patent/CN205845972U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020233036A1 (en) * | 2019-05-17 | 2020-11-26 | 苏州大学 | Photovoltaic battery assembly |
| CN110176514A (en) * | 2019-07-03 | 2019-08-27 | 浙江晶科能源有限公司 | A kind of two-sided photovoltaic module and photovoltaic system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |