CN110176514A - A kind of two-sided photovoltaic module and photovoltaic system - Google Patents
A kind of two-sided photovoltaic module and photovoltaic system Download PDFInfo
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- CN110176514A CN110176514A CN201910594634.7A CN201910594634A CN110176514A CN 110176514 A CN110176514 A CN 110176514A CN 201910594634 A CN201910594634 A CN 201910594634A CN 110176514 A CN110176514 A CN 110176514A
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- 239000008393 encapsulating agent Substances 0.000 claims abstract description 69
- 239000000654 additive Substances 0.000 claims description 11
- 230000000996 additive effect Effects 0.000 claims description 11
- 239000011521 glass Substances 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 4
- 229920000642 polymer Polymers 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 claims 1
- 238000005538 encapsulation Methods 0.000 abstract description 21
- 238000004519 manufacturing process Methods 0.000 abstract description 14
- 238000004806 packaging method and process Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000000137 annealing Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 2
- 229920000715 Mucilage Polymers 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
Classifications
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- 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
-
- 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
-
- 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)
- 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
This application discloses a kind of two-sided photovoltaic modulies, from top to bottom successively include front cover plate, front-sheet encapsulant layer, double-side cell, back-sheet encapsulant layer and back cover plate；When the double-side cell is N-type double-side cell, the front-sheet encapsulant layer is POE layers, and the back-sheet encapsulant layer is EVA layer；When the double-side cell is p-type double-side cell, the front-sheet encapsulant layer is EVA layer, and the back-sheet encapsulant layer is POE layers.In present embodiment, it is cheap to the preferable one side use cost of stability in double-sided solar battery, the fast EVA encapsulation of assembling speed, the one side use reliability poor to stability is higher, finished product yield higher POE encapsulation, compares and the prior art, substantially reduce the packaging time of component, it realizes while ensureing the two-sided photovoltaic module global reliability, reduces component package cost, improve the effect of production line production capacity and final finished yield.Present invention also provides a kind of photovoltaic systems with above-mentioned beneficial effect.
Description
Technical field
This application involves Photovoltaic new energy fields, more particularly to a kind of two-sided photovoltaic module and photovoltaic system.
Background technique
As global warning and environment are worsening, people gradually recognize the fossil energies such as petroleum, coal electricity to ring
The tremendous influence power that border generates, therefore renewable energy becomes the inevitable choice of sustainable development.With the development of crystal silicon technology,
Photovoltaic cheap internet access becomes inexorable trend.Double-side assembly is as a kind of high power component in the complementation of fishing light and desert area reflective
Place that can be good is by favor.
Two-sided photovoltaic module mainly uses POE to encapsulate in the prior art, although POE encapsulation can be such that finished device possesses preferably
Reliability, but POE is encapsulated in higher cost in encapsulation technology, has raised the production cost of component entirety, and equip and match the time
Longer, leading to production, time-consuming, production line overall throughput is relatively low, therefore, finds one kind under the premise of guaranteeing certain reliability,
Component production cost is reduced, the method for improving production capacity is those skilled in the art's urgent problem to be solved.
Apply for content
The purpose of the application is to provide a kind of two-sided photovoltaic module and photovoltaic system, is produced with solving component in the prior art
High expensive, time-consuming for production, the relatively low problem of production capacity.
In order to solve the above technical problems, the application provides a kind of two-sided photovoltaic module, it from top to bottom successively include front cover
Plate, front-sheet encapsulant layer, double-side cell, back-sheet encapsulant layer and back cover plate；
When the double-side cell is N-type double-side cell, the front-sheet encapsulant layer is POE layers, and the back-sheet encapsulant layer is
EVA layer；
When the double-side cell is p-type double-side cell, the front-sheet encapsulant layer is EVA layer, and the back-sheet encapsulant layer is
POE layers.
Optionally, in the two-sided photovoltaic module, the front-sheet encapsulant layer is the encapsulated layer doped with the first additive,
The back-sheet encapsulant layer is doped with the encapsulated layer not with the Second addition of first additive reaction.
Optionally, in the two-sided photovoltaic module, the range of the thickness of the EVA layer is 430 grams every square metre to 520
Gram every square metre, including endpoint value.
Optionally, in the two-sided photovoltaic module, the range of POE layers of the thickness is 430 grams every square metre to 560
Gram every square metre, including endpoint value.
Optionally, in the two-sided photovoltaic module, the front-sheet encapsulant layer and the back-sheet encapsulant layer are to be added to increasing
The encapsulated layer of stick.
Optionally, in the two-sided photovoltaic module, the front cover plate and the back cover plate are glass cover-plate.
Optionally, in the two-sided photovoltaic module, the front cover plate is glass cover-plate, and the back cover plate is transparent
Macromolecule cover board.
Optionally, in the two-sided photovoltaic module, the back-sheet encapsulant layer is the encapsulated layer for being added to ultraviolet absorber.
Optionally, in the two-sided photovoltaic module, the double-side cell is the double-side cell by annealing.
Present invention also provides a kind of photovoltaic system, the photovoltaic system include it is above-mentioned it is any as described in two-sided photovoltaic
Component.
Two-sided photovoltaic module provided herein successively includes front cover plate, front-sheet encapsulant layer, two-sided electricity from top to bottom
Pond, back-sheet encapsulant layer and back cover plate；When the double-side cell is N-type double-side cell, the front-sheet encapsulant layer is POE layers,
The back-sheet encapsulant layer is EVA layer；When the double-side cell is p-type double-side cell, the front-sheet encapsulant layer is EVA layer, institute
Stating back-sheet encapsulant layer is POE layers.With popularizing for double side photovoltaic battery technology, people are gradually had found, existing p-type double-side assembly
Mostly the back side is failed, and N-type double-side assembly is mostly front failure, and in present embodiment, to steady in double-sided solar battery
Qualitative preferable one side use cost is cheap, assembling speed it is fast EVA encapsulation, the one side use reliability poor to stability compared with
Height, the higher POE encapsulation of finished product yield, existing two-sided POE encapsulation, which generally requires 26-30 minutes, to be laminated, and in the application
Described POE layers with the hybrid package of the EVA layer, it is only necessary to 18 minutes, substantially reduce the packaging time of component, improve life
Producing line production capacity；In addition, the cost of single side POE encapsulation is probably 1.5 times of single side EVA encapsulation, therefore the application has gone back and has ensured
While the two-sided photovoltaic module global reliability, the effect of component package cost is reduced.Present invention also provides a kind of tools
There is the photovoltaic system of above-mentioned beneficial effect.
Detailed description of the invention
It, below will be to embodiment or existing for the clearer technical solution for illustrating the embodiment of the present application or the prior art
Attached drawing needed in technical description is briefly described, it should be apparent that, the accompanying drawings in the following description is only this Shen
Some embodiments please for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is a kind of structural schematic diagram of specific embodiment of two-sided photovoltaic module provided by the present application；
Fig. 2 is the structural schematic diagram of another specific embodiment of two-sided photovoltaic module provided by the present application.
Specific embodiment
In order to make those skilled in the art more fully understand application scheme, with reference to the accompanying drawings and detailed description
The application is described in further detail.Obviously, described embodiments are only a part of embodiments of the present application, rather than
Whole embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, shall fall in the protection scope of this application.
The core of the application is to provide a kind of two-sided photovoltaic module, a kind of structural schematic diagram of specific embodiment such as figure
Shown in 1, it is called specific embodiment one, from top to bottom successively includes front cover plate 400, front-sheet encapsulant layer 200, double-side cell
100, back-sheet encapsulant layer 300 and back cover plate 500；
When the double-side cell 100 is N-type double-side cell 100, the front-sheet encapsulant layer 200 is POE layers, the back side
Encapsulated layer 300 is EVA layer；
When the double-side cell 100 is p-type double-side cell 100, the front-sheet encapsulant layer 200 is EVA layer, the back side
Encapsulated layer 300 is POE layers.
It should be noted that the front-sheet encapsulant layer 200 is the encapsulated layer doped with the first additive, the back side encapsulation
Layer 300 is doped with the encapsulated layer not with the Second addition of first additive reaction.First additive with it is described
Second addition may contact mixing during laminating packaging, guarantee in advance that first additive adds with described second
Add agent not react, security risk can be reduced, improves final finished yield.
In addition, the front cover plate 400 and the back cover plate 500 are glass cover-plate；Glass cover-plate good airproof performance；Physics
Intensity is high, not easily damaged；It is low in cost；Further, it is also possible to which enabling the front cover plate 400 is glass cover-plate, the back cover plate
500 be transparent polymer cover board, and the transparent polymer cover board is light-weight, appearance looks elegant.
Particularly, using in the case where transparent polymer cover board, the back-sheet encapsulant layer 300 is the back cover plate 400
It is added to the encapsulated layer of ultraviolet absorber；Since most of double-side cell 100 cannot directly absorb ultraviolet light, opposite ultraviolet light meeting
Device is damaged, the service life of the two-sided photovoltaic module is reduced, therefore adds the ultraviolet absorbing agent to extend described pair
The service life of face photovoltaic module, while promoting its reliability.
It should be noted that the double-side cell 100 is the double-side cell 100 by annealing；After annealing
The compactness of the back film of double-side cell 100 can improve, the reliability of further lifting assembly.
Two-sided photovoltaic module provided herein, from top to bottom successively include front cover plate 400, front-sheet encapsulant layer 200,
Double-side cell 100, back-sheet encapsulant layer 300 and back cover plate 500；When the double-side cell 100 is N-type double-side cell 100, institute
Stating front-sheet encapsulant layer 200 is POE layers, and the back-sheet encapsulant layer 300 is EVA layer；When the double-side cell 100 is the two-sided electricity of p-type
When pond 100, the front-sheet encapsulant layer 200 is EVA layer, and the back-sheet encapsulant layer 300 is POE layers.With double side photovoltaic battery skill
Art is popularized, and people gradually have found, existing p-type double-side assembly is mostly back side failure, and N-type double-side assembly is mostly front failure,
And in present embodiment, cheap to the preferable one side use cost of stability in double-sided solar battery, assembling speed is fast
EVA encapsulation, the one side use reliability poor to stability is higher, finished product yield higher POE encapsulation, existing two-sided
POE encapsulation is generally required 26-30 minutes and is laminated, and the hybrid package of the POE layers in the application and the EVA layer, is only needed
18 minutes are wanted, the packaging time of component is substantially reduced, production line production capacity is improved；In addition, the cost of single side POE encapsulation is general
It is 1.5 times of single side EVA encapsulation, therefore the application has been gone back while ensureing the two-sided photovoltaic module global reliability, drop
The effect of low component package cost.
On the basis of specific embodiment one, the ingredient of encapsulated layer is further limited, obtains specific embodiment two,
Structural schematic diagram as shown in Fig. 2, successively include front cover plate 400, front-sheet encapsulant layer 200, double-side cell 100, back from top to bottom
Face encapsulated layer 300 and back cover plate 500；
When the double-side cell 100 is N-type double-side cell 100, the front-sheet encapsulant layer 200 is POE layers, the back side
Encapsulated layer 300 is EVA layer；
When the double-side cell 100 is p-type double-side cell 100, the front-sheet encapsulant layer 200 is EVA layer, the back side
Encapsulated layer 300 is POE layers；
The front-sheet encapsulant layer 200 and the back-sheet encapsulant layer 300 are the encapsulated layer for being added to tackifier.
Present embodiment and above-mentioned specific embodiment the difference is that, present embodiment defines institute
State the content of the additive of front-sheet encapsulant layer 200 and the additive of the back-sheet encapsulant layer 300, remaining structure with it is above-mentioned specific
Embodiment is identical, not reinflated herein to repeat.
In present embodiment, the additive of the front-sheet encapsulant layer 200 and the additive of the back-sheet encapsulant layer 300
It further include tackifier；Encapsulating material is mucilage binding, be easy in encapsulation process generate sliding, cause it is bad, reduce reliability with
Yields can inhibit sliding after the tackifier are added, improve reliability and yields.
On the basis of specific embodiment two, the thickness of encapsulated layer is further limited, obtains specific embodiment three,
Structural schematic diagram is also shown in FIG. 2, from top to bottom successively includes front cover plate 400, front-sheet encapsulant layer 200, double-side cell
100, back-sheet encapsulant layer 300 and back cover plate 500；
When the double-side cell 100 is N-type double-side cell 100, the front-sheet encapsulant layer 200 is POE layers, the back side
Encapsulated layer 300 is EVA layer；
When the double-side cell 100 is p-type double-side cell 100, the front-sheet encapsulant layer 200 is EVA layer, the back side
Encapsulated layer 300 is POE layers；
The range of the thickness of the EVA layer is 430 grams every square metre to 520 grams every square metre, including endpoint value；
The range of POE layers of the thickness is 430 grams every square metre to 560 grams every square metre, including endpoint value.
Present embodiment and above-mentioned specific embodiment the difference is that, present embodiment defines institute
The thickness of front-sheet encapsulant layer 200 and the back-sheet encapsulant layer 300 is stated, remaining structure is identical as above-mentioned specific embodiment,
This is not reinflated to repeat.
The thickness of the front-sheet encapsulant layer 200 and the back-sheet encapsulant layer 300 is defined in present embodiment, it is above-mentioned
Range is the optimal parameter range by theoretical calculation and practice examining, and comparable two sides in the prior art is all made of POE envelope
Dress, the time that present embodiment completes double-faced packaging shorten 8 to 12 minutes, and cost reduces 20% or so, certainly
It can adjust accordingly according to the actual situation.
Present invention also provides a kind of photovoltaic system with above-mentioned beneficial effect, the photovoltaic system includes such as above-mentioned
A kind of two-sided photovoltaic module.Two-sided photovoltaic module provided herein successively includes front cover plate from top to bottom
400, front-sheet encapsulant layer 200, double-side cell 100, back-sheet encapsulant layer 300 and back cover plate 500；When the double-side cell 100 is N
When type double-side cell 100, the front-sheet encapsulant layer 200 is POE layers, and the back-sheet encapsulant layer 300 is EVA layer；When described two-sided
When battery 100 is p-type double-side cell 100, the front-sheet encapsulant layer 200 is EVA layer, and the back-sheet encapsulant layer 300 is POE layers.
With popularizing for double side photovoltaic battery technology, people are gradually had found, existing p-type double-side assembly is mostly back side failure, and N-type is two-sided
Component is mostly front failure, and in present embodiment, stability in double-sided solar battery is preferably used on one side
This is cheap, and the fast EVA encapsulation of assembling speed, the one side use reliability poor to stability is higher, the higher POE of finished product yield
Encapsulation, existing two-sided POE encapsulation, which generally requires 26-30 minutes, to be laminated, and the POE layers in the application and the EVA layer
Hybrid package, it is only necessary to 18 minutes, substantially reduce the packaging time of component, improve production line production capacity；In addition, single side POE
The cost of encapsulation is probably 1.5 times of single side EVA encapsulation, therefore the application has gone back and integrally may be used in the guarantee two-sided photovoltaic module
While by property, the effect of component package cost is reduced.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with it is other
The difference of embodiment, same or similar part may refer to each other between each embodiment.For being filled disclosed in embodiment
For setting, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is referring to method part
Explanation.
It should be noted that in the present specification, relational terms such as first and second and the like are used merely to one
A entity or operation with another entity or operate distinguish, without necessarily requiring or implying these entities or operation it
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant are intended to
Cover non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or setting
Standby intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in the process, method, article or apparatus that includes the element.
Two-sided photovoltaic module provided herein and photovoltaic system are described in detail above.It is used herein
The principle and implementation of this application are described for specific case, and the above embodiments are only used to help understand originally
The method and its core concept of application.It should be pointed out that for those skilled in the art, not departing from this Shen
Please under the premise of principle, can also to the application, some improvement and modification can also be carried out, these improvement and modification also fall into the application power
In the protection scope that benefit requires.
Claims (10)
1. a kind of two-sided photovoltaic module, which is characterized in that from top to bottom successively include front cover plate, front-sheet encapsulant layer, two-sided electricity
Pond, back-sheet encapsulant layer and back cover plate；
When the double-side cell is N-type double-side cell, the front-sheet encapsulant layer is POE layers, and the back-sheet encapsulant layer is EVA
Layer；
When the double-side cell is p-type double-side cell, the front-sheet encapsulant layer is EVA layer, and the back-sheet encapsulant layer is POE
Layer.
2. two-sided photovoltaic module as described in claim 1, which is characterized in that the front-sheet encapsulant layer is doped with the first addition
The encapsulated layer of agent, the back-sheet encapsulant layer are doped with the encapsulated layer not with the Second addition of first additive reaction.
3. two-sided photovoltaic module as described in claim 1, which is characterized in that the range of the thickness of the EVA layer is 430 grams every
Square metre to 520 grams every square metre, including endpoint value.
4. two-sided photovoltaic module as described in claim 1, which is characterized in that the range of POE layers of the thickness is 430 grams every
Square metre to 560 grams every square metre, including endpoint value.
5. two-sided photovoltaic module as described in claim 1, which is characterized in that the front-sheet encapsulant layer and the back-sheet encapsulant layer
For the encapsulated layer for being added to tackifier.
6. two-sided photovoltaic module as described in claim 1, which is characterized in that the front cover plate and the back cover plate are glass
Glass cover board.
7. two-sided photovoltaic module as described in claim 1, which is characterized in that the front cover plate is glass cover-plate, the back
Surface cover is transparent polymer cover board.
8. two-sided photovoltaic module as claimed in claim 7, which is characterized in that the back-sheet encapsulant layer is to be added to UV absorption
The encapsulated layer of agent.
9. two-sided photovoltaic module as claimed in any one of claims 1 to 8, which is characterized in that the double-side cell is by moving back
The double-side cell of fire processing.
10. a kind of photovoltaic system, which is characterized in that the photovoltaic system includes as described in any one of claim 1 to 9 two-sided
Photovoltaic module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910594634.7A CN110176514A (en) | 2019-07-03 | 2019-07-03 | A kind of two-sided photovoltaic module and photovoltaic system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910594634.7A CN110176514A (en) | 2019-07-03 | 2019-07-03 | A kind of two-sided photovoltaic module and photovoltaic system |
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|---|---|---|---|---|
| CN106159013A (en) * | 2016-08-25 | 2016-11-23 | 泰通(泰州)工业有限公司 | A kind of light high-efficiency photovoltaic module |
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2019
- 2019-07-03 CN CN201910594634.7A patent/CN110176514A/en active Pending
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