CN110112104A - Novel photovoltaic module - Google Patents
Novel photovoltaic module Download PDFInfo
- Publication number
- CN110112104A CN110112104A CN201910509930.2A CN201910509930A CN110112104A CN 110112104 A CN110112104 A CN 110112104A CN 201910509930 A CN201910509930 A CN 201910509930A CN 110112104 A CN110112104 A CN 110112104A
- Authority
- CN
- China
- Prior art keywords
- welding
- cell piece
- photovoltaic module
- novel photovoltaic
- buffer strip
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000003466 welding Methods 0.000 claims abstract description 54
- 230000003139 buffering effect Effects 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 6
- 239000002390 adhesive tape Substances 0.000 claims description 5
- 238000003475 lamination Methods 0.000 abstract description 6
- 239000012634 fragment Substances 0.000 abstract description 4
- 239000011521 glass Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 6
- 238000013467 fragmentation Methods 0.000 description 4
- 238000006062 fragmentation reaction Methods 0.000 description 4
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- -1 battery array Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000013082 photovoltaic technology Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/562—Protection against mechanical damage
-
- 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
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Electromagnetism (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention discloses a novel photovoltaic assembly which comprises a plurality of battery strings, wherein each battery string comprises a plurality of battery pieces which are connected in series through a welding strip, an overlapping area is formed between every two adjacent battery pieces in each battery string, and a buffer strip is arranged at a position, close to the overlapping area, of each battery piece and between every two adjacent welding strips. And the two ends of the buffer strip are connected with the welding strip or keep a gap. The width of the overlapping area is 0-2 mm. According to the invention, no cell spacing exists between the cells, the assembly space is greatly utilized, the assembly efficiency is improved, the stress area of the overlapping part of the cells is increased by the buffer zone at the overlapping area of the cells, the lamination pressure is borne by the previous welding zone, and the stress of the whole overlapping area and the buffer zone is increased, so that the fragment rate and the EL subfissure ratio are greatly reduced.
Description
Technical field
The invention belongs to photovoltaic technology field, and in particular to a kind of novel photovoltaic module.
Background technique
Photovoltaic module technology is very mature, and typical list glass photovoltaic module structure is mainly by glass, EVA, battery side
Battle array, EVA, backboard encapsulate；Typical solar double-glass assemblies are formed by glass, EVA, battery array, EVA glass-encapsulated.Battery
Square matrix is formed by multiple battery strings serial or parallel connections, and battery strings are connected in series by multiple cell pieces again.
In the prior art, there are piece spacing between cell piece in photovoltaic module, usually in 2mm or more, due to piece spacing
Presence, at component sheets spacing can off-energy, therefore reduce the efficiency of component.
Summary of the invention
To solve the above-mentioned problems, the present invention provides a kind of novel photovoltaic modules, improve photovoltaic module efficiency.
The technical solution of the present invention is as follows: a kind of novel photovoltaic module, including multiple battery strings, the battery strings include multiple
By the concatenated cell piece of welding, there is overlapping region between adjacent cell piece in the battery strings, the cell piece is close
Buffer strip is provided at position at overlapping region and between adjacent welding.
The present invention will be overlapped a part between adjacent cell piece in battery strings, form an overlapping region, spacing is avoided to lead
The energy loss of cause, and then improve the efficiency of component.Simultaneously in order to avoid main grid fragmentation and main grid EL crack occurs the problem of, especially
It is for double glass photovoltaic modulies, especially seriously, therefore in the present invention at overlapping region, i.e. between two adjacent weldings also
Buffering band structure is had additional, the forced area that cell piece overlapping region goes out is increased by buffering band structure, by welding before
Lamination pressure is born, increases entire overlapping region and buffer strip stress, therefore significantly reduce fragment rate and EL crack ratio
Example.
There are many situations for width in the present invention at overlapping region, such as can slightly be overlapped, preferably, the overlapping
The width in region is 0~2mm.
Preferably, the buffer strip and welding are perpendicular.
In the present invention material of buffer strip can there are many, preferably, the material of the buffer strip be conducting resinl, conduction
Adhesive tape or non-conductive adhesive tape.
Preferably, the both ends of the buffer strip connect with welding or keep gap.
Preferably, whole section of the buffer strip is continuous or is formed by multistage buffering section arranged for interval.
Preferably, the buffer strip is formed by 2~10 sections of multistage buffering section arranged for interval.
Preferably, the welding be located at the position at the join domain of adjacent cell piece formed via flattening processing it is flat
Shape structure, the thickness a of the buffer strip, flat structure with a thickness of b, a >=1/2b.The thickness of buffer strip of the present invention with
Welding flatten after thickness it is equal or suitable, in this way in component lamination the pressure of two cell piece overlappings just by weldering before
Band undertakes increase buffer strip and undertakes, and forced area has been significantly greatly increased, to reduce fragmentation and crack of the cell piece at welding
Ratio.
Preferably, the flat structure of the welding formed with a thickness of 0.1~0.5mm, the welding flattening processing
With a thickness of 0.05~0.3mm.
In the present invention there are many planforms of welding, preferably, the welding is flat pattern welding, round shape
Shape welding, triangular shaped welding or epimerised welding.
It can be adapted for the cell piece with any main grid in the present invention, preferably, the cell piece is with 3-
The cell piece of 18 main grids.
Preferably, cell piece of the cell piece for full wafer cell piece or after being cut with arbitrary dimension.
Photovoltaic module application version type includes in the component version type using welding interconnection such as vertical and horizontal version in the present invention.
Compared with prior art, the beneficial effects of the present invention are embodied in:
There is no piece spacing in the present invention between cell piece, component feature space, lifting assembly efficiency, in cell piece is greatly utilized
Buffer strip at overlapping region increases the forced area of cell piece overlapping, bears lamination pressure by welding before, increases
Entire overlapping region and buffer strip stress, therefore significantly reduce fragment rate and EL crack ratio.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of cell piece in the present invention.
Fig. 2 is the structural schematic diagram of cell piece junction in the present invention.
Fig. 3 is the structural schematic diagram of battery strings in the present invention.
Fig. 4 is the structural schematic diagram of adjacent cell piece junction in battery strings in the present invention.
Fig. 5 is the structural schematic diagram of double glass photovoltaic modulies in the present invention.
Fig. 6 is the structural schematic diagram of single glass photovoltaic module in the present invention.
Specific embodiment
As shown in Figure 1 to 4, the present invention includes multiple battery strings, and battery strings include multiple by the concatenated battery of welding 2
Piece 1.Photovoltaic module application version type includes in the component version type using welding interconnection such as vertical and horizontal version in the present invention, can be double glass light
Lie prostrate component, or single glass photovoltaic module is shown in Fig. 5 and Fig. 6.
As shown in Figure 1 to 4, there is overlapping region, cell piece 1 exists in the present invention in battery strings between adjacent cell piece 1
Buffer strip 3 is provided at overlapping region and at the position between adjacent welding 2.
In the present invention there are many planforms of welding 2, such as welding 2 is flat pattern welding 2, circular shape welding
2, the structure types such as triangular shaped welding 2 or epimerised welding 2.It can be adapted for that there is any master in the present invention
The cell piece 1 of grid, such as cell piece 1 can be the cell piece 1 with 3-18 root main grid.
The present invention will be overlapped a part between adjacent cell piece 1 in battery strings, form an overlapping region, spacing is avoided to lead
The energy loss of cause, and then improve the efficiency of component.Simultaneously in order to avoid main grid fragmentation and main grid EL crack occurs the problem of, especially
It is for double glass photovoltaic modulies, especially seriously, therefore in the present invention at overlapping region, i.e. between two adjacent weldings 2
3 structure of buffer strip is also had additional, the forced area at 1 overlapping region of cell piece is increased by 3 structure of buffer strip, by before
Welding 2 bears lamination pressure, increases by 3 stress of entire overlapping region and buffer strip, therefore significantly reduce fragment rate and EL
Crack ratio.
There are many situations for width in the present invention at overlapping region, such as can slightly be overlapped, under normal circumstances, overlay region
The width in domain is 0~2mm.
Wherein, buffer strip 3 and welding 2 are perpendicular.In the present invention material of buffer strip 3 can there are many, the material of buffer strip 3
Material is conducting resinl, conductive tape or non-conductive adhesive tape.Buffer strip 3 can be sticked on cell piece by way of stickup.Buffering
Both ends with 3 connect with welding 2 or keep gap.3 whole sections of buffer strip is continuous or is formed by multistage buffering section arranged for interval.
When if multistage buffering section composition, under normal circumstances, buffer strip 3 is formed by 2~10 sections of multistage buffering section arranged for interval.
In the present invention welding 2 be located at the position at the join domain of adjacent cell piece 1 formed via flattening processing it is flat
Structure 21, the thickness a of buffer strip 3, flat structure 21 with a thickness of b, a >=1/2b.The thickness and welding of buffer strip 3 of the present invention
2 flatten after thickness it is equal or suitable, in this way in component lamination the pressure of two 1 overlappings of cell piece just by welding before
2 undertake and increase buffer strip 3 and undertakes, and forced area has been significantly greatly increased, to reduce fragmentation of the cell piece 1 at welding 2 and hidden
Split ratio.Under normal circumstances, the thickness for the flat structure 21 of welding 2 formed with a thickness of 0.1~0.5mm, the flattening processing of welding 2
Degree is 0.05~0.3mm.
Claims (10)
1. a kind of novel photovoltaic module, including multiple battery strings, the battery strings include multiple by the concatenated cell piece of welding,
It is characterized in that, having overlapping region in the battery strings between adjacent cell piece, the cell piece is at overlapping region
And buffer strip is provided at the position between adjacent welding.
2. novel photovoltaic module as described in claim 1, which is characterized in that the width of the overlapping region is 0~2mm.
3. novel photovoltaic module as claimed in claim 1 or 2, which is characterized in that the buffer strip and welding are perpendicular.
4. novel photovoltaic module as claimed in claim 3, which is characterized in that the material of the buffer strip is conducting resinl, conduction
Adhesive tape or non-conductive adhesive tape.
5. novel photovoltaic module as claimed in claim 3, which is characterized in that the both ends of the buffer strip connect with welding or
Keep gap.
6. claim 1~2 and 4~5 it is any as described in novel photovoltaic module, which is characterized in that whole section of the buffer strip
It is formed continuously or by multistage buffering section arranged for interval.
7. novel photovoltaic module as claimed in claim 6, which is characterized in that the buffer strip is by 2~10 sections of multistage buffering sections
Arranged for interval forms.
8. the novel photovoltaic module as described in claim 1,2,4,5 and 7 are any, which is characterized in that the welding is located at phase
Position at the join domain of adjacent cell piece forms flat structure via flattening processing, the thickness a of the buffer strip, flat
Structure with a thickness of b, a >=1/2b.
9. novel photovoltaic module as claimed in claim 8, which is characterized in that the welding with a thickness of 0.1~0.5mm, institute
State welding flatten processing formed flat structure with a thickness of 0.05~0.3mm.
10. novel photovoltaic module as described in claim 1, which is characterized in that the welding is flat pattern welding, circle
Shape welding, triangular shaped welding or epimerised welding, the cell piece are the cell piece with 3-18 root main grid,
Cell piece of the cell piece for full wafer cell piece or after being cut with arbitrary dimension.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910509930.2A CN110112104A (en) | 2019-06-13 | 2019-06-13 | Novel photovoltaic module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910509930.2A CN110112104A (en) | 2019-06-13 | 2019-06-13 | Novel photovoltaic module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110112104A true CN110112104A (en) | 2019-08-09 |
Family
ID=67494846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910509930.2A Pending CN110112104A (en) | 2019-06-13 | 2019-06-13 | Novel photovoltaic module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110112104A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111755549A (en) * | 2020-06-24 | 2020-10-09 | 上海晶澳太阳能科技有限公司 | Photovoltaic cell string and photovoltaic module |
| CN112216757A (en) * | 2020-08-28 | 2021-01-12 | 晶澳（扬州）太阳能科技有限公司 | Series structure and series method of solar cells and cell module |
| CN112397611A (en) * | 2020-10-23 | 2021-02-23 | 晶澳太阳能有限公司 | Preparation method of photovoltaic cell string |
| CN113178503A (en) * | 2021-04-23 | 2021-07-27 | 通威太阳能（合肥）有限公司 | Photovoltaic cell piece, welding strip fixing method, finished product assembly and preparation method thereof |
| CN113421940A (en) * | 2021-06-18 | 2021-09-21 | 晶澳（扬州）太阳能科技有限公司 | Solar cell module and preparation method thereof |
| CN113594302A (en) * | 2021-08-02 | 2021-11-02 | 浙江晶科能源有限公司 | Photovoltaic module processing method, photovoltaic module and glue dripping device |
| AU2021221523B1 (en) * | 2021-07-16 | 2022-12-22 | Shanghai Jinko Green Energy Enterprise Management Co. Ltd. | Photovoltaic module |
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| US20120138117A1 (en) * | 2008-03-20 | 2012-06-07 | Miasole | Thermoplastic wire network support for photovoltaic cells |
| JP2010040769A (en) * | 2008-08-05 | 2010-02-18 | Sanyo Electric Co Ltd | Method of manufacturing solar-battery module |
| CN102779876A (en) * | 2012-08-01 | 2012-11-14 | 保定嘉盛光电科技有限公司 | Full-glass assembly and manufacture method thereof |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111755549A (en) * | 2020-06-24 | 2020-10-09 | 上海晶澳太阳能科技有限公司 | Photovoltaic cell string and photovoltaic module |
| CN111755549B (en) * | 2020-06-24 | 2022-09-06 | 北京晶澳能源科技有限公司 | Photovoltaic cell string and photovoltaic module |
| CN112216757A (en) * | 2020-08-28 | 2021-01-12 | 晶澳（扬州）太阳能科技有限公司 | Series structure and series method of solar cells and cell module |
| CN112216757B (en) * | 2020-08-28 | 2022-10-28 | 晶澳(扬州)新能源有限公司 | Series structure and series method of solar cells and cell module |
| CN112397611B (en) * | 2020-10-23 | 2022-08-02 | 晶澳太阳能有限公司 | Preparation method of photovoltaic cell string |
| CN112397611A (en) * | 2020-10-23 | 2021-02-23 | 晶澳太阳能有限公司 | Preparation method of photovoltaic cell string |
| CN113178503A (en) * | 2021-04-23 | 2021-07-27 | 通威太阳能（合肥）有限公司 | Photovoltaic cell piece, welding strip fixing method, finished product assembly and preparation method thereof |
| CN113421940A (en) * | 2021-06-18 | 2021-09-21 | 晶澳（扬州）太阳能科技有限公司 | Solar cell module and preparation method thereof |
| AU2021221523B1 (en) * | 2021-07-16 | 2022-12-22 | Shanghai Jinko Green Energy Enterprise Management Co. Ltd. | Photovoltaic module |
| US11721776B2 (en) | 2021-07-16 | 2023-08-08 | Shanghai Jinko Green Energy Enterprise Management Co., Ltd. | Photovoltaic module |
| EP4283686A3 (en) * | 2021-07-16 | 2024-01-24 | Shanghai Jinko Green Energy Enterprise Management Co., Ltd. | Photovoltaic module |
| CN113594302A (en) * | 2021-08-02 | 2021-11-02 | 浙江晶科能源有限公司 | Photovoltaic module processing method, photovoltaic module and glue dripping device |
| CN113594302B (en) * | 2021-08-02 | 2023-08-11 | 浙江晶科能源有限公司 | Photovoltaic module processing method, photovoltaic module and glue dripping device |
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