CN105304740A - Photovoltaic conversion module - Google Patents
Photovoltaic conversion module Download PDFInfo
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- CN105304740A CN105304740A CN201510655556.9A CN201510655556A CN105304740A CN 105304740 A CN105304740 A CN 105304740A CN 201510655556 A CN201510655556 A CN 201510655556A CN 105304740 A CN105304740 A CN 105304740A
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- electric insulation
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- photovoltaic
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 57
- 239000000758 substrate Substances 0.000 claims abstract description 68
- 239000011521 glass Substances 0.000 claims abstract description 24
- 238000009413 insulation Methods 0.000 claims description 84
- 239000000463 material Substances 0.000 claims description 65
- 238000000576 coating method Methods 0.000 claims description 55
- 238000002955 isolation Methods 0.000 claims description 54
- 239000011248 coating agent Substances 0.000 claims description 53
- 230000003647 oxidation Effects 0.000 claims description 5
- 238000007254 oxidation reaction Methods 0.000 claims description 5
- 239000005022 packaging material Substances 0.000 abstract 3
- 229910001415 sodium ion Inorganic materials 0.000 description 8
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 description 7
- 150000001768 cations Chemical class 0.000 description 7
- 150000001875 compounds Chemical class 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 230000037427 ion transport Effects 0.000 description 6
- 229910021645 metal ion Inorganic materials 0.000 description 6
- 238000005240 physical vapour deposition Methods 0.000 description 6
- 239000011734 sodium Substances 0.000 description 6
- 229920000840 ethylene tetrafluoroethylene copolymer Polymers 0.000 description 5
- 229910001051 Magnalium Inorganic materials 0.000 description 4
- 150000001450 anions Chemical class 0.000 description 4
- 238000010292 electrical insulation Methods 0.000 description 4
- 229910052582 BN Inorganic materials 0.000 description 3
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 3
- 239000005038 ethylene vinyl acetate Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical group CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 2
- 229910020068 MgAl Inorganic materials 0.000 description 2
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- -1 ethylenetetrafluoroethylene Chemical group 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000004544 sputter deposition Methods 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
-
- 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
- H01L31/0481—Encapsulation of modules characterised by the composition of the encapsulation material
-
- 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
Abstract
The invention discloses a photovoltaic conversion module which comprises a backboard, a photovoltaic conversion element, an insulating structure layer, a first packaging material layer and transparent glass. The photovoltaic conversion element is arranged on the backboard. The insulating structure layer is arranged on the photovoltaic conversion element and comprises a substrate and a first electric insulating layer. The first electric insulating layer is arranged on the substrate. The first packaging material layer is arranged on the insulating structure layer. The transparent glass is arranged on the first packaging material layer. The photovoltaic conversion module according to the invention can reduce power loss of the photovoltaic conversion module.
Description
Technical field
The present invention relates to a kind of photovoltaic modular converter.
Background technology
In recent years, due to crude oil storage minimizing year by year all over the world, energy problem had become the focus that the whole world is gazed at.In order to solve the crisis of power consumption, the forest ecosystem of various alternative energy source is real is the task of top priority.Along with environmental consciousness comes back, add that solar energy has no pollution and inexhaustible advantage, solar energy has become the focus attracted most attention in association area.Therefore, in the position of abundance at sunshine, such as building roof, square etc., the more and more common installing to solar panel.
In solar energy module, it forms mainly through multiple photovoltaic conversion equipment, and is fixed by encapsulating material again.But the encapsulating material configuration in solar energy module or assembling mode also can be relevant with the generating efficiency of solar energy module.Such as, encapsulating material may cause negative effect to photovoltaic conversion equipment.To this, how to reduce the negative effect that encapsulating material causes photovoltaic conversion equipment, become an important topic in association area.
Summary of the invention
One embodiment of the present invention provides a kind of photovoltaic modular converter.Photovoltaic modular converter comprises isolation structure layer, and wherein isolation structure layer blocks the metal ion transport path of transparent glass to photovoltaic conversion element by insulating barrier wherein, to prevent photovoltaic conversion element because of sodium ion (Na
+) migrate to its surface and carrier (electronics-electric hole to) the compound phenomenon that produces, and then reduce the power loss (powerloss) of photovoltaic modular converter.
One embodiment of the present invention provides a kind of photovoltaic modular converter, comprises backboard, photovoltaic conversion element, isolation structure layer, the first encapsulating material layer and transparent glass.Photovoltaic conversion element is arranged on backboard.Isolation structure layer is arranged on photovoltaic conversion element, and comprises substrate and the first electric insulation layer.First electric insulation layer is arranged on substrate.First encapsulating material layer is arranged on isolation structure layer.Transparent glass is arranged on the first encapsulating material layer.
In some embodiments, isolation structure layer more comprises the first resilient coating.First resilient coating is arranged between substrate and the first electric insulation layer, and wherein the lattice constant of the first resilient coating is between the lattice constant and the lattice constant of the first electric insulation layer of substrate.
In some embodiments, the refractive index of the first resilient coating is between the refractive index and the refractive index of the first electric insulation layer of substrate.
In some embodiments, the refractive index of the first electric insulation layer is N1, and the refractive index of the first resilient coating is N2, and the refractive index of substrate is N3, and N1>N2>N3.
In some embodiments, photovoltaic modular converter more comprises the second encapsulating material layer and the 3rd encapsulating material layer.Second encapsulating material layer is arranged between backboard and photovoltaic conversion element.3rd encapsulating material layer is arranged between photovoltaic conversion element and isolation structure layer, and wherein photovoltaic conversion element is coated between the second encapsulating material layer and the 3rd encapsulating material layer.
In some embodiments, isolation structure layer more comprises the first resilient coating, the second electric insulation layer and the second resilient coating.First resilient coating is arranged between substrate and the first electric insulation layer, and wherein the lattice constant of the first resilient coating is between the lattice constant and the lattice constant of the first electric insulation layer of substrate.Second electric insulation layer is arranged at the side of relative first electric insulation layer of substrate.Second resilient coating is arranged between substrate and the second electric insulation layer, and wherein the lattice constant of the second resilient coating is between the lattice constant and the lattice constant of the second electric insulation layer of substrate.
In some embodiments, the material of the first electric insulation layer comprises pottery, oxide or its combination, and wherein oxide comprises four oxidation two magnalium (MgAl
2o
4).
One embodiment of the present invention provides a kind of photovoltaic modular converter, comprises backboard, photovoltaic conversion element, isolation structure layer, the first encapsulating material layer and transparent glass.Photovoltaic conversion element is arranged on backboard.Isolation structure layer is arranged on photovoltaic conversion element, and comprises substrate, the first electric insulation layer and the first resilient coating.First electric insulation layer, and be arranged on substrate.First resilient coating is arranged between substrate and the first electric insulation layer, and wherein the lattice constant of the first resilient coating is between the lattice constant and the lattice constant of the first electric insulation layer of substrate.First encapsulating material layer is arranged on isolation structure layer.Transparent glass is arranged on the first encapsulating material layer.
In some embodiments, the refractive index of this first electric insulation layer is N1, and the refractive index of this first resilient coating is N2, and the refractive index of this substrate is N3, and N1>N2>N3.
In some embodiments, this isolation structure layer more comprises:
One second electric insulation layer, is arranged at the side of this substrate this first electric insulation layer relative; And
One second resilient coating, is arranged between this substrate and this second electric insulation layer, and wherein the lattice constant of this second resilient coating is between the lattice constant and the lattice constant of this second electric insulation layer of this substrate.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Accompanying drawing explanation
Figure 1A illustrates the cross-sectional schematic of the photovoltaic modular converter of first embodiment of the invention.
Figure 1B illustrates the enlarged diagram of the region A of Figure 1A.
Fig. 2 illustrates the cross-sectional schematic of the photovoltaic modular converter of second embodiment of the invention.
Fig. 3 illustrates the cross-sectional schematic of the photovoltaic modular converter of third embodiment of the invention.
Wherein, Reference numeral:
100,200,300 photovoltaic modular converters
101 backboards
102 transparent glass
104 first encapsulating material layers
106 second encapsulating material layers
107 the 3rd encapsulating material layers
108 photovoltaic conversion elements
109 weldings
110 isolation structure layers
112 substrates
114 first electric insulation layers
116 first resilient coatings
118 second electric insulation layers
120 second resilient coatings
122 cations
124 anions
A-quadrant
L dotted line
Embodiment
Below will with graphic exposure multiple execution mode of the present invention, as clearly stated, the details in many practices will be explained in the following description.But should be appreciated that, the details in these practices is not applied to limit the present invention.That is, in some embodiments of the present invention, the details in these practices is non-essential.In addition, for the purpose of simplicity of illustration, some existing usual structures and assembly illustrate it by the mode simply illustrated in the drawings.
Because encapsulating material may cause negative effect to photovoltaic conversion element, one embodiment of the present invention provides a kind of photovoltaic modular converter to comprise isolation structure layer, wherein isolation structure layer blocks metal ion transport path from transparent glass to photovoltaic conversion element, to prevent photovoltaic conversion element because of sodium ion (Na by insulating barrier wherein
+) migrate to its surface and carrier (electronics-electric hole to) the compound phenomenon that produces, and then reduce the power loss (powerloss) of photovoltaic modular converter.
Please refer to Figure 1A and Figure 1B.Figure 1A illustrates the cross-sectional schematic of the photovoltaic modular converter 100 of first embodiment of the invention.Figure 1B illustrates the enlarged diagram of the region A of Figure 1A.Photovoltaic modular converter 100 comprises backboard 101, photovoltaic conversion element 108, welding 109, isolation structure layer 110, first encapsulating material layer 104, second encapsulating material layer 106, the 3rd encapsulating material layer 107 and transparent glass 102, wherein photovoltaic conversion element 108 can be solar cell, device of solar generating or transform light energy is the device of electric energy by other.In addition, for convenience of description, Figure 1A has illustrated dotted line L between the second encapsulating material layer 106 and the 3rd encapsulating material layer 107.
Photovoltaic conversion element 108 is arranged on backboard, and mutual electric property coupling.Welding 109 is arranged between adjacent photovoltaic conversion element 108 respectively, to be connected in series by multiple photovoltaic conversion element 108.Isolation structure layer 110 is arranged on photovoltaic conversion element 108, and comprises substrate 112 and the first electric insulation layer 114.First electric insulation layer 114 has electrical insulation characteristics, and is arranged on substrate 112.First encapsulating material layer 104 is arranged on isolation structure layer 110.Transparent glass 102 is arranged on the first encapsulating material layer 104.In addition, available, the second encapsulating material layer 106 is arranged between backboard 101 and photovoltaic conversion element 108.3rd encapsulating material layer 107 is arranged between photovoltaic conversion element 108 and isolation structure layer 110, wherein photovoltaic conversion element 108 is coated between the second encapsulating material layer 106 and the 3rd encapsulating material layer 107, that is be coated on the position of dotted line L, to be fixed among photovoltaic modular converter 100 by photovoltaic conversion element 108.The material of the first encapsulating material layer 104, second encapsulating material layer 106 and the 3rd encapsulating material layer 107 can be formed by ethylene-vinyl acetate (EVA) or comprised ethylene-vinyl acetate.
Under this configuration, by the electrical insulation characteristics of the first electric insulation layer 114, isolation structure layer 110 can block or reduce the cation migration path between the first encapsulating material layer 104 and photovoltaic conversion element 108, such as, block sodium ion (Na
+) migration path, so as to preventing or reducing photovoltaic conversion element 108 because of sodium ion (Na
+) migrate to its surface from transparent glass 102 via the first encapsulating material layer 104 and produce carrier compound phenomenon.For example, as shown in Figure 1B, when there being aqueous vapor to enter the first encapsulating material layer 104, first encapsulating material layer 104 can produce anion 124 (such as because of hydrolysis, EVA material in first encapsulating material layer 104 is electronegative acetate ion group because hydrolysis produces), wherein be hydrolyzed and possibility (glass material such as, in transparent glass 102 can separate out the sodium ion of positively charged because acetate ion group) that the anion 124 that produces can cause the transparent glass 102 be made up of glass to have cation 122 to separate out.Then, cation 122 can be subject to anion 124 and attract, and this cation 122 is advanced towards the direction of photovoltaic conversion element 108.Because isolation structure layer 110 is between the first encapsulating material layer 104 and photovoltaic conversion element 108, therefore, isolation structure layer 110 can block cation 122 and march to photovoltaic conversion element 108, to prevent photovoltaic conversion element 108 from producing carrier (electronics-electric hole to) compound phenomenon because cation 122 marches to its surface, can effectively be lowered so as to making the power loss of photovoltaic modular converter 100.In other words, by the electrical insulation characteristics of the first electric insulation layer 114, isolation structure layer 110 can provide the suppression effect for metal ion transport, with the carrier compound phenomenon effectively preventing photovoltaic conversion element 108 from producing to its surface because of sodium ions, the power loss of photovoltaic modular converter 100 can be effectively lowered.
In present embodiment, the first electric insulation layer 114 can by physical vapour deposition (PVD) (physicalvapordeposition; PVD) mode, such as sputter (sputterdeposition), be formed on substrate 112, and wherein the material of the first electric insulation layer 114 can be inorganic matter.Furthermore, the material of the first electric insulation layer 114 can be/comprise pottery, oxide or its combination, wherein oxide can be/comprise the oxide material of high stability, such as four oxidation two magnalium (MgAl
2o
4).The material of substrate 112 can be ethylene-tetrafluoroethylene copolymer (ethylenetetrafluoroethylene; ETFE).In addition, in some embodiments, the refractive index of the first electric insulation layer 114 is greater than the refractive index of substrate 112.Such as, when the material of the first electric insulation layer 114 is four oxidation two magnalium, the refractive index of the first electric insulation layer 114 is 1.71, and when the material of substrate 112 is ETFE, the refractive index of substrate 112 is 1.59.
In addition, in present embodiment, the substrate 112 in isolation structure layer 110 is towards backboard 101, and the first electric insulation layer 114 in isolation structure layer 110 is towards transparent glass 102.But, should be appreciated that, substrate 112 in the isolation structure layer 110 that Figure 1A paints and the first electric insulation layer 114 towards being only illustration, and be not used to limit the present invention, the technical staff in the technical field of the invention, can according to actual needs, elasticity select substrate 112 and the first electric insulation layer 114 towards.Such as, in other execution mode, the substrate 112 in isolation structure layer 110 can towards transparent glass 102, and the first electric insulation layer 114 in isolation structure layer 110 is towards backboard 101.
Fig. 2 illustrates the cross-sectional schematic of the photovoltaic modular converter 200 of second embodiment of the invention.The difference of present embodiment and the first execution mode is, the isolation structure layer 110 of present embodiment more comprises the first resilient coating 116.First resilient coating 116 is arranged between substrate 112 and the first electric insulation layer 114, and wherein the lattice constant of the first resilient coating 116 is between the lattice constant and the lattice constant of the first electric insulation layer 114 of substrate 112.Similarly, the first resilient coating 116 can be formed on substrate 112 by physical vapour deposition (PVD) mode, and then, the first electric insulation layer 114 is formed on the first resilient coating 116 again.In addition, the material of the first resilient coating 116 can be such as boron nitride (boronnitride; BN).
Under this configuration, because the lattice constant of the first resilient coating 116 is between the lattice constant and the lattice constant of the first electric insulation layer 114 of substrate 112, therefore, the first electric insulation layer 114 formed can have preferably quality because of the relation of Lattice Matching.Such as, the first electric insulation layer 114 formed can have better compactness and tack.Moreover due to the relation of Lattice Matching, the stress be present in the first electric insulation layer 114 can effectively be lowered, and produces the possibility of defect so as to reducing the first electric insulation layer 114, the fine ratio of product of isolation structure layer 110 is promoted.
In addition, in present embodiment, the refractive index of the first resilient coating 116 is between the refractive index and the refractive index of the first electric insulation layer 114 of substrate 112.Furthermore, the refractive index of the first electric insulation layer 114 is N1, and the refractive index of the first resilient coating 116 is N2, and the refractive index of substrate 112 is N3, and N1>N2>N3.In other words, the first resilient coating 116, except providing the buffering effect on Lattice Matching, also provides the gain effect in optical match.Such as, when the material of the first electric insulation layer 114 is four oxidation two magnalium, the refractive index of the first electric insulation layer 114 is 1.71, when the material of the first resilient coating 116 is boron nitride, the refractive index of the first resilient coating 116 is 1.65, when the material of substrate 112 is ETFE, the refractive index of substrate 112 is 1.59.
That is, because the refractive index of the first resilient coating 116 is between the refractive index and the refractive index of the first electric insulation layer 114 of substrate 112, and the refractive index difference of the first resilient coating 116 and the first electric insulation layer 114, the first resilient coating 116 and the refractive index difference of substrate 112 are all less than the refractive index difference of substrate 112 and the first electric insulation layer 114, therefore, its reflection possibility that in isolation structure layer 110 in occur can be reduced through transparent glass 102 towards the light of photovoltaic conversion element 108 incidence from photovoltaic modular converter 200 outside.
In other words, when being provided with isolation structure layer 110 in photovoltaic modular converter 200, by the configuration of refractive index between the refractive index and the refractive index of the first electric insulation layer 114 of substrate 112 of the first resilient coating 116, by the light of transparent glass 102 towards photovoltaic conversion element 108 incidence from photovoltaic modular converter 200 outside still can effectively pass isolation structure layer 110 and enter photovoltaic conversion element 108.
Fig. 3 illustrates the cross-sectional schematic of the photovoltaic modular converter 300 of third embodiment of the invention.The difference of present embodiment and the first execution mode is, the isolation structure layer 110 of present embodiment more comprises the second electric insulation layer 118 and the second resilient coating 120.Second electric insulation layer 118 is arranged at the side of relative first electric insulation layer 114 of substrate 112, and has electrical insulation characteristics.Second resilient coating 120 is arranged between substrate 112 and the second electric insulation layer 118, and wherein the lattice constant of the second resilient coating 120 is between the lattice constant and the lattice constant of the second electric insulation layer 118 of substrate 112.In addition, the first electric insulation layer 114 can be formed by identical technique with the second electric insulation layer 118, and it also can be made up of identical material.Similarly, the first resilient coating 116 can be formed by identical technique with the second resilient coating 120, and it also can be made up of identical material.
In present embodiment, in isolation structure layer 110, the relative both sides of substrate 112 are respectively arranged with the first electric insulation layer 114 and the second electric insulation layer 118.Therefore, the effect in what isolation structure layer 110 provided block metal ion transport path promotes further, make isolation structure layer 110 can provide better suppression effect for metal ion transport, more effectively to prevent photovoltaic conversion element 108 because of sodium ion (Na
+) migrate to its surface and the carrier compound phenomenon that causes, also therefore, the power loss of photovoltaic modular converter 300 can effectively be lowered.
For example, according to the specification of IEC62804, bring out in the test of power attenuation (PID) in electromotive force, when photovoltaic modular converter does not arrange isolation structure layer, the power loss of photovoltaic modular converter for being greater than 30%, and is classified to C rank (Cclass).In photovoltaic modular converter is provided with isolation structure layer when, the power loss of photovoltaic modular converter for being less than 5%, and can be classified to A rank (Aclass).
In sum, photovoltaic modular converter of the present invention comprises isolation structure layer, and wherein isolation structure layer blocks metal ion transport path from transparent glass to photovoltaic conversion element, to prevent photovoltaic conversion element because of sodium ion (Na by insulating barrier wherein
+) migrate to its surface and the carrier compound phenomenon that causes, and then reduce the power loss of photovoltaic modular converter.In addition, isolation structure layer more can comprise resilient coating.Resilient coating except make lattice constant in isolation structure layer between each layer closer to except, the effect of isolation structure layer optical match is also provided, make photovoltaic modular converter in being provided with isolation structure layer when, through the light of transparent glass towards the incidence of photovoltaic conversion element from photovoltaic modular converter outside still can effectively pass isolation structure layer and enter photovoltaic conversion element.
Certainly; the present invention also can have other various embodiments; when not deviating from the present invention's spirit and essence thereof; those of ordinary skill in the art can make various corresponding change and distortion according to the present invention, but these change accordingly and are out of shape the protection range that all should belong to the claims in the present invention.
Claims (10)
1. a photovoltaic modular converter, is characterized in that, comprises:
One backboard;
At least one photovoltaic conversion element, is arranged on this backboard;
One isolation structure layer, is arranged on this photovoltaic conversion element, and comprises:
One substrate; And
One first electric insulation layer, is arranged on this substrate;
One first encapsulating material layer, is arranged on this isolation structure layer; And
One transparent glass, is arranged on this first encapsulating material layer.
2. photovoltaic modular converter according to claim 1, it is characterized in that, this isolation structure layer more comprises one first resilient coating, be arranged between this substrate and this first electric insulation layer, wherein the lattice constant of this first resilient coating is between the lattice constant and the lattice constant of this first electric insulation layer of this substrate.
3. photovoltaic modular converter according to claim 2, is characterized in that, the refractive index of this first resilient coating is between the refractive index and the refractive index of this first electric insulation layer of this substrate.
4. photovoltaic modular converter according to claim 3, is characterized in that, the refractive index of this first electric insulation layer is N1, and the refractive index of this first resilient coating is N2, and the refractive index of this substrate is N3, and N1>N2>N3.
5. photovoltaic modular converter according to claim 1, is characterized in that, more comprise:
One second encapsulating material layer, is arranged between this backboard and this photovoltaic conversion element; And
One the 3rd encapsulating material layer, be arranged between this photovoltaic conversion element and this isolation structure layer, wherein this photovoltaic conversion element is coated between this second encapsulating material layer and the 3rd encapsulating material layer.
6. photovoltaic modular converter according to claim 1, is characterized in that, this isolation structure layer more comprises:
One first resilient coating, is arranged between this substrate and this first electric insulation layer, and wherein the lattice constant of this first resilient coating is between the lattice constant and the lattice constant of this first electric insulation layer of this substrate;
One second electric insulation layer, is arranged at the side of this substrate this first electric insulation layer relative; And
One second resilient coating, is arranged between this substrate and this second electric insulation layer, and wherein the lattice constant of this second resilient coating is between the lattice constant and the lattice constant of this second electric insulation layer of this substrate.
7., according to the arbitrary described photovoltaic modular converter of claim 1 to 6, it is characterized in that, the material of this first electric insulation layer is four oxidation two magnaliums.
8. a photovoltaic modular converter, is characterized in that, comprises:
One backboard;
At least one photovoltaic conversion element, is arranged on this backboard;
One isolation structure layer, is arranged on this photovoltaic conversion element, and comprises:
One substrate;
One first electric insulation layer, is arranged on this substrate; And
One first resilient coating, is arranged between this substrate and this first electric insulation layer, and wherein the lattice constant of this first resilient coating is between the lattice constant and the lattice constant of this first electric insulation layer of this substrate;
One first encapsulating material layer, is arranged on this isolation structure layer; And
One transparent glass, is arranged on this first encapsulating material layer.
9. photovoltaic modular converter according to claim 8, is characterized in that, the refractive index of this first electric insulation layer is N1, and the refractive index of this first resilient coating is N2, and the refractive index of this substrate is N3, and N1>N2>N3.
10. photovoltaic modular converter according to claim 8 or claim 9, it is characterized in that, this isolation structure layer more comprises:
One second electric insulation layer, is arranged at the side of this substrate this first electric insulation layer relative; And
One second resilient coating, is arranged between this substrate and this second electric insulation layer, and wherein the lattice constant of this second resilient coating is between the lattice constant and the lattice constant of this second electric insulation layer of this substrate.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510655556.9A CN105304740A (en) | 2015-10-12 | 2015-10-12 | Photovoltaic conversion module |
| PCT/CN2015/092030 WO2017063176A1 (en) | 2015-10-12 | 2015-10-15 | Photovoltaic conversion module |
| TW104138756A TWI614910B (en) | 2015-10-12 | 2015-11-23 | Photovoltaic conversion module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510655556.9A CN105304740A (en) | 2015-10-12 | 2015-10-12 | Photovoltaic conversion module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105304740A true CN105304740A (en) | 2016-02-03 |
Family
ID=55201746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510655556.9A Pending CN105304740A (en) | 2015-10-12 | 2015-10-12 | Photovoltaic conversion module |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN105304740A (en) |
| TW (1) | TWI614910B (en) |
| WO (1) | WO2017063176A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112201719A (en) * | 2020-09-29 | 2021-01-08 | 浙江晶科能源有限公司 | Adhesive film structure and photovoltaic module |
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| TW201714320A (en) | 2017-04-16 |
| TWI614910B (en) | 2018-02-11 |
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