CN209434194U - Generating electricity on two sides photovoltaic module battery rear structure - Google Patents
Generating electricity on two sides photovoltaic module battery rear structure Download PDFInfo
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- CN209434194U CN209434194U CN201822257254.8U CN201822257254U CN209434194U CN 209434194 U CN209434194 U CN 209434194U CN 201822257254 U CN201822257254 U CN 201822257254U CN 209434194 U CN209434194 U CN 209434194U
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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 relates to a kind of generating electricity on two sides photovoltaic module battery rear structures, successively include double-sided solar battery piece, be placed in cell piece gap white ink layer, close to white ink layer EVA layer and block water POE layers.In this configuration, design has the white ink layer of high reflectance on rear side of double-side cell piece, can be improved the intensity and ratio of reflection light, to improve the utilization rate of sunlight and improve the generating efficiency of solar cell module, and it is simple for structure, it is suitable for large-scale promotion application.In addition the glue film has one layer for polyolefin elastomer (POE) layer, and water vapor rejection rate is high, and volume resistivity is also high, effectively reduces the PID decaying of component, reduces the power attenuation of component.
Description
Technical field
It is specifically a kind of two-sided the utility model relates to battery technology field, in particular to technical field of solar batteries
Generate electricity photovoltaic module battery rear structure.
Background technique
It is one of currently the most important ones green energy resource using solar power generation, it makes use of the photovoltaic effect of some materials,
Achieve the effect that power generation through sun photo-excited electron, and by collecting electronics.Solar cell module is solar power generation system
The most key part in system, component can start to generate electricity after being sunlighted.The incident photon-to-electron conversion efficiency of cell piece in component
With cell piece be irradiated to sunlight number and solar components power generation efficiency have positively related relationship.How the sun is improved
The utilization rate of light is to improve one of the means of solar cell module efficiency.
Conventional solar cell module is successively photovoltaic glass, glue film, cell piece, glue film, backboard from top to bottom, some
Occasion glass can be replaced by transparent plastic film or backboard and can be substituted with glass plate, by the development of many years, photovoltaic
The transfer efficiency of battery itself has been lifted to the opposite limit, and a big chunk sunlight is directed through battery in traditional components
The transparent adhesive film in gap causes the significant wastage of sunlight, especially for generating electricity on two sides component, the light of tow sides cell piece
Waste is very big.Have in CN201810547125.4 and mentions on backboard printing net check to reflect the sun for not being irradiated to cell piece
Light, improves the utilization rate of sunlight, so that the generating efficiency of photovoltaic module is improved, but this method gain is not still high, because
It actually uses on dorsulum there is still a need for layer of transparent glue film is laid with, reduces reflectivity.
Utility model content
The purpose of the utility model is to overcome it is above-mentioned in the prior art the shortcomings that, a kind of generating electricity on two sides photovoltaic module is provided
Battery rear structure, in this configuration, the white ink layer of setting high reflectance, can be improved reflected light on rear side of double-side cell piece
The intensity and ratio of line, thus improve the utilization rate of sunlight and improve the generating efficiency of solar cell module, and is simple for structure,
Suitable for large-scale promotion application.In addition the glue film has one layer for polyolefin elastomer (POE) layer, and water vapor rejection rate is high, volume
Resistivity is also high, effectively reduces the PID decaying of component, reduces the power attenuation of component.
To achieve the goals above, the generating electricity on two sides photovoltaic module battery rear structure of the utility model uses as follows
Technical solution:
The generating electricity on two sides photovoltaic module battery rear structure, being successively laid in component use includes double-sided solar battery
Electric surface on rear side of piece, the white ink layer for being placed in cell piece gap, close to white ink layer EVA layer and block water POE layers.
Further, the white ink layer at least covers the piece spacing between cell piece and/or the string spacing between cell piece
And/or module edge.
Further, the white ink layer is incorporated in EVA layer surface by spraying or silk-screen printing.
Further, reflectivity >=65% of the white ink layer at 380nm~1100nm.
Further, the white ink layer with a thickness of 5~100 μm, EVA layer with a thickness of 20~400 μm, block water
POE layers with a thickness of 20~400 μm.
Using the generating electricity on two sides photovoltaic module battery rear structure of the utility model, setting is high anti-on rear side of double-side cell piece
The white ink layer for penetrating rate, can be improved the intensity and ratio of reflection light, to improve the utilization rate of sunlight and improve the sun
The generating efficiency of energy battery component, and it is simple for structure, it is suitable for large-scale promotion application.In addition it is polyolefin bullet that the glue film, which has one layer,
Property body (POE) layer, water vapor rejection rate is high, and volume resistivity is also high, effectively reduces the PID decaying of component, reduces component
Power attenuation.
Detailed description of the invention
Fig. 1 is the generating electricity on two sides photovoltaic module battery rear structure schematic cross-sectional view of the embodiments of the present invention 2.
Fig. 2 is the white ink layer schematic diagram of the utility model.
Appended drawing reference
Electric surface on rear side of 1 double-sided solar battery piece
2 white ink layers
3 EVA layers
4 block water POE layers
The center grid line of 5 white ink layers
The short side edge grid line of 6 white ink layers
The long side edge grid line of 7 white ink layers
Specific embodiment
In order to be more clearly understood that the technology contents of the utility model, below to the specific embodiment party of the utility model
Method is described further.
Embodiment 1
In the white ink layer of 5 μ m-thick of EVA layer surface printing of the double-layer coextrusion film of EVA/POE, white ink layer is net
Trellis, the width of every center grid line of grid are 2.1cm, and width of the grid for component short side edge is 16mm, is used for
The width of component long side edge is 12mm, in double-layer coextrusion film EVA layer with a thickness of 20 μm, block water POE layers with a thickness of 400 μ
M is laid with p-type PERC double-side cell piece above white ink layer and constitutes generating electricity on two sides photovoltaic module battery rear structure.It should
Rear structure be cut into solar photovoltaic assembly size, by glass/normal transparent EVA adhesive film/p-type PERC double-side cell piece/
Double-layer coextrusion film/the glass for being printed on the EVA/POE of white ink layer is successively laid with, this structure and upper layer and lower layer are all used commonly
For the comparison component of transparent EVA glue film after 145 DEG C of laminations, the component power of the structure promotes 2% than comparison component.
Embodiment 2
In the white ink layer of 20 μ m-thick of EVA layer surface printing, white ink layer is latticed, every central square of grid
The width of sub-line is 9cm, and width of the grid for component short side edge is 40mm, and the width for component long side edge is
20mm.EVA layer with a thickness of 400 μm, block water POE layers with a thickness of 50 μm, block water POE layers and be laid below EVA layer, in white
It is laid with p-type PERC double-side cell piece above ink layer and constitutes generating electricity on two sides photovoltaic module battery rear structure.By the rear structure
Be cut into solar photovoltaic assembly size, glass/normal transparent EVA adhesive film/double-side cell piece/is printed on white ink layer
EVA layer/POE layers/the glass that blocks water successively is laid with, this structure and upper layer and lower layer are all used to the contrast groups of normal transparent EVA adhesive film
For part after 145 DEG C of laminations, the component power of the structure promotes 1.5% than comparison component.
Embodiment 3
In the white ink layer of 50 μ m-thick of EVA layer surface printing of EVA/POE/EVA three-layer extrusion film, white ink layer is
Latticed, the width of every center grid line of grid is 3cm, and grid is 16.75mm for the width of component short side edge, is used
Be 22mm in the width of component long side edge, the thickness of EVA layer is respectively 200 μm in three-layer extrusion film, block water POE layers with a thickness of
100 μm, N-type monocrystalline double-side cell piece is laid with above white ink layer and constitutes generating electricity on two sides photovoltaic module battery rear structure.
By the rear structure be cut into solar photovoltaic assembly size, glass/normal transparent EVA adhesive film/double-side cell piece/is printed on
EVA/POE/EVA three-layer extrusion film/glass of white ink layer is successively laid with, this structure and upper layer and lower layer is all used common saturating
For the comparison component of bright EVA adhesive film after 145 DEG C of laminations, the component power of the structure promotes 5% than comparison component.
Embodiment 4
In the white ink layer of 100 μ m-thick of EVA layer surface printing, white ink layer is latticed, every center of grid
The width of grid line is 9cm, and width of the grid for component short side edge is 40mm, and the width for component long side edge is
20mm.EVA layer with a thickness of 200 μm, block water POE layers with a thickness of 100 μm, block water POE layers and be laid below EVA layer, white
It is laid with N-type double-side cell piece above color ink layer and constitutes generating electricity on two sides photovoltaic module battery rear structure.The rear structure is cut
Be cut into solar photovoltaic assembly size, glass/normal transparent EVA adhesive film/double-side cell piece/is printed on white ink layer
EVA layer/POE layers/the normal transparent that blocks water EVA adhesive film/glass is successively laid with, this structure and upper layer and lower layer is all only used common saturating
For the comparison component of bright EVA adhesive film after 145 DEG C of laminations, the component power of the structure promotes 3.5% than comparison component.
In this description, the utility model is described with reference to its specific embodiment.But it is clear that still can be with
The spirit and scope that various modification can be adapted and converts without departing from the utility model.Therefore, the description and the appended drawings should be considered as
It is illustrative and not restrictive.
Claims (5)
1. a kind of generating electricity on two sides photovoltaic module battery rear structure, which is characterized in that successively including after double-sided solar battery piece
Side electric surface, the white ink layer for being placed in cell piece gap, close to white ink layer EVA layer and block water POE layers.
2. generating electricity on two sides photovoltaic module battery rear structure according to claim 1, which is characterized in that the white ink
Layer at least covers the piece spacing between cell piece and/or string spacing and/or module edge between cell piece.
3. generating electricity on two sides photovoltaic module battery rear structure according to claim 1, which is characterized in that the white ink
Layer is incorporated in EVA layer surface by spraying or silk-screen printing.
4. generating electricity on two sides photovoltaic module battery rear structure according to claim 1, which is characterized in that the white ink
Reflectivity >=65% of layer.
5. generating electricity on two sides photovoltaic module battery rear structure according to claim 1, which is characterized in that the white ink
Layer with a thickness of 5~100 μm, EVA layer with a thickness of 20~400 μm, block water POE layers with a thickness of 20~400 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822257254.8U CN209434194U (en) | 2018-12-29 | 2018-12-29 | Generating electricity on two sides photovoltaic module battery rear structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822257254.8U CN209434194U (en) | 2018-12-29 | 2018-12-29 | Generating electricity on two sides photovoltaic module battery rear structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209434194U true CN209434194U (en) | 2019-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822257254.8U Active CN209434194U (en) | 2018-12-29 | 2018-12-29 | Generating electricity on two sides photovoltaic module battery rear structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209434194U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111584661A (en) * | 2020-04-30 | 2020-08-25 | 晋能清洁能源科技股份公司 | A kind of transverse multi-layer co-extruded adhesive film and its cutting assembly structure and packaging method |
-
2018
- 2018-12-29 CN CN201822257254.8U patent/CN209434194U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111584661A (en) * | 2020-04-30 | 2020-08-25 | 晋能清洁能源科技股份公司 | A kind of transverse multi-layer co-extruded adhesive film and its cutting assembly structure and packaging method |
| CN111584661B (en) * | 2020-04-30 | 2022-09-06 | 晋能清洁能源科技股份公司 | Transverse multilayer co-extrusion adhesive film and cutting assembly structure and packaging method thereof |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201508 Zhen Shan De road, Shanyang, Jinshan District, Shanghai, No. 29 Patentee after: Shanghai Haiyou Wei Applied Materials Technology Co., Ltd. Address before: 201508 Zhen Shan De road, Shanyang, Jinshan District, Shanghai, No. 29 Patentee before: Shanghai palace Industrial Development Co. Ltd. |
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| CP01 | Change in the name or title of a patent holder |