CN208315571U - A kind of welding for laminated type solar battery sheet component - Google Patents
A kind of welding for laminated type solar battery sheet component Download PDFInfo
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- CN208315571U CN208315571U CN201820251935.0U CN201820251935U CN208315571U CN 208315571 U CN208315571 U CN 208315571U CN 201820251935 U CN201820251935 U CN 201820251935U CN 208315571 U CN208315571 U CN 208315571U
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- solar battery
- battery sheet
- welding
- laminated type
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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
Abstract
The utility model discloses a kind of welding for laminated type solar battery sheet component, the bow strip that can be connect with solar battery on piece main gate line/back electrode including at least two has between two adjacent piece-root grafting touch articles and is capable of conductive interconnecting piece.The length of bow strip is less than or equal to main gate line/back electrode length on cell piece.Interconnecting piece can use line style interconnecting piece, can also use face type interconnecting piece.Using the design of the utility model, it is different from previous solar battery sheet welding, the bow strip of multi-disc solar battery sheet is connected instead of existing one using at least two piece-root grafting touch articles, especially suitable for laminated type solar battery sheet component, one piece-root grafting touch article is connected to the main gate line of a piece of cell piece, and another piece-root grafting touch article is connected to down the back electrode of a piece of cell piece.
Description
Technical field
The utility model relates to a kind of components of solar battery, especially a kind of to be used for laminated type solar battery sheet group
The welding of part.
Background technique
World today's energy shortage, the development and utilization of clean energy resource this for solar energy have become countries in the world utilization
The big event of new energy, and the generating efficiency for how improving solar battery sheet is the weight of major photovoltaic Corporation R & D work
Point, at present new technology solar battery, such as PERC battery, HIT battery, the MWT battery research and development test in each enterprise, certain
It has produced in batches a bit.
Solar components will realize that the function of power generation connects monolithic solar cell and become an entirety,
The current most common connection type is to be welded to connect using photovoltaic welding belt and busbar.Such as a kind of crystal silicon solar energy battery
The wedge-shaped welding rod (ZL201210106034XCN) of connection, a kind of wedge-shaped welding rod of crystal-silicon solar cell connection, it includes
There are welding rod wedge-shaped segment and welding rod section, the welding rod wedge-shaped segment and welding rod section link together, welding rod wedge-shaped segment and the crystalline silicon sun
The front face of cell piece and weld together, the rear-face contact of welding rod section and crystalline silicon solar cell piece and is welded on one
It rises, multiple cell pieces sequentially are attached by an electrode.
But the electrical loss of energy of this connection type is larger, this kind of particularly with high-efficiency battery piece with rapid changepl. never-ending changes and improvements at present
Cell piece electrical parameter is more excellent, but the circuit connecting mode of general components can not play high excellent of its generating efficiency completely at present
Gesture, prevent the technology innovation of battery-end is from the promotion in component system end acquisition equal proportion.
Utility model content
Purpose of utility model: utility model aims to solve existing stacked wafer moudle or imbrication component, in
Every string cell piece in portion all uses conducting resinl to stack the battery slip after cutting and welds brought soldering reliability problem,
And solve the problems, such as that existing solar battery welding can not be suitable for laminated type solar battery sheet component.
Technical solution: the utility model adopts the following technical solution:
A kind of welding for laminated type solar battery sheet component, including at least two can be with solar battery on piece
The bow strip of main gate line/back electrode connection has between two adjacent piece-root grafting touch articles and is capable of conductive interconnecting piece.
Further, the length of bow strip is less than or equal to main gate line/back electrode length on cell piece.
Further, the interconnecting piece is line style interconnecting piece.
Further, the interconnecting piece is face type interconnecting piece.
Further, it is copper strips that the bow strip, which is inside, the bow strip of outside package tin cream, bow strip and main gate line/
It is connected between back electrode by tin cream.
Inside is copper strips, and outer layer is tinning layer, and the fusing point of tinning layer is lower than copper and silicon, after tin layers fusing, is had centainly
Connection is realized in mobility, filling play movement, it is ensured that welding effect.
Further, the line style interconnecting piece is at least one conductor wire for connecting two piece-root grafting touch articles.
One can be used, can also be more, the material and the corresponding conductivity of material chosen with specific reference to conductor wire
It is chosen, such as copper wire, copper-plated tin silk.
Further, the face type interconnecting piece is soft planar conducting surface.
Conducting surface is capable of conductive metallic conduction face, such as copper foil, conducting adhesive cloth using soft.
Further, the line style interconnecting piece is netted/line-shaped conductive face.
The utility model has the advantages that the present invention is compared with prior art:
1, in process of production: the purpose of the present invention is to solve existing stacked wafer moudle or imbrication component since it is existing
Assembly reliability problem caused by some welding manners, using a kind of photovoltaic welding belt of special construction by the solar energy after lamination
Cell piece transverse weld is reduced a lot of cell piece by the shrinkage character of welding material itself and stacks heat expansion caused by welding
Shrinkage stress sufficiently improves using integrity problem existing for the produced component of lamination techniques.
2, in later period power generation use: for stacked wafer moudle or imbrication component, main purpose is to improve component
Output power.For the component of high-output power, in the power generation use process on daytime, external environment temperature adds it certainly
It is higher that the heat that body generates rises the internal temperature of component, and at night, when component is idle, internal temperature meeting
Decline.Temperature difference of the component on daytime and evening is welded using soldering paste or conducting resinl at present under long-term operating condition
The problems such as stacked wafer moudle, weld is easy to appear crackle, pulls, so that the service life that component works normally is greatly reduced.
3, the characteristic of expanding with heat and contract with cold of silicon: the characteristic of expanding with heat and contract with cold of 2.6um.m-1.k-1 welding, copper: 16.5um.m-1.k-1,
Tin: 22.0um.m-1.k-1
The tensile strength and flexible nature of welding material allow between solar battery sheet and piece due to welding offset a little
With slight displacement of the component in laminating process, and the imbrication component for using soldering paste or conducting resinl to weld, in establishment of component mistake
In journey caused this respect deviate brought by intrinsic tension, due to lacking welding in the buffer function wherein played,
During component subsequent use, the reliability of its welding is seriously affected, cell piece is easily caused and cracks or weld in weld
It pulls.
4, the battery the piece number of lamination welding is more, and the probability that problem above occurs is bigger, and the reliability of component is poorer.
Detailed description of the invention
Fig. 1 is the solar battery sheet component structure diagram of the prior art；
Fig. 2 is the structural schematic diagram using line-shaped conductive face of the utility model；
Fig. 3 is the structural schematic diagram using reticulated conductive face of the utility model；
Fig. 4 is the structural schematic diagram using face type interconnecting piece of the utility model；
Fig. 5 is the adjacent solar battery piece of the utility model using the effect picture after linear interconnecting piece connection.
Specific embodiment
The utility model is further described combined with specific embodiments below, such as attached drawing 1 to attached drawing 5:
Embodiment 1
A kind of welding for laminated type solar battery sheet component, including at least two can be with solar battery sheet 1
The bow strip 2 of upper main gate line/back electrode connection has between two adjacent piece-root grafting touch articles 2 and is capable of conductive interconnecting piece 3.
The length of bow strip 2 is less than or equal to main gate line/back electrode length on cell piece 1.
The interconnecting piece 3 is line style interconnecting piece.
Further, it is copper strips that the bow strip 2, which is inside, the bow strip of outside package tin cream, bow strip and master
It is connected between grid line/back electrode by tin cream.
Inside is copper strips, and outer layer is tinning layer, and the fusing point of tinning layer is lower than copper and silicon, after tin layers fusing, is had centainly
Connection is realized in mobility, filling play movement, it is ensured that welding effect.
The line style interconnecting piece is one/more conductor wires for connecting two piece-root grafting touch articles.
One can be used, can also be more, the material and the corresponding conductivity of material chosen with specific reference to conductor wire
It is chosen, such as copper wire, copper-plated tin silk.
The line style interconnecting piece is line-shaped conductive face.
Embodiment 2
A kind of welding for laminated type solar battery sheet component, including at least two can be with solar battery sheet 1
The bow strip 2 of upper main gate line/back electrode connection has between two adjacent piece-root grafting touch articles 2 and is capable of conductive interconnecting piece 3.
The length of bow strip 2 is less than or equal to main gate line/back electrode length on cell piece 1.
The interconnecting piece 3 is line style interconnecting piece.
It is copper strips that the bow strip 2, which is inside, the bow strip of outside package tin cream, bow strip and main gate line/back electrode it
Between pass through tin cream connect.
Inside is copper strips, and outer layer is tinning layer, and the fusing point of tinning layer is lower than copper and silicon, after tin layers fusing, is had centainly
Connection is realized in mobility, filling play movement, it is ensured that welding effect.
Further, the line style interconnecting piece is at least one conductor wire for connecting two piece-root grafting touch articles.
One can be used, can also be more, the material and the corresponding conductivity of material chosen with specific reference to conductor wire
It is chosen, such as copper wire, copper-plated tin silk.
Further, the face type interconnecting piece is soft planar conducting surface.
Conducting surface is capable of conductive metallic conduction face, such as copper foil, conducting adhesive cloth using soft.
The line style interconnecting piece is reticulated conductive face.
Embodiment 3
A kind of welding for laminated type solar battery sheet component, including at least two can be with solar battery sheet 1
The bow strip 2 of upper main gate line/back electrode connection has between two adjacent piece-root grafting touch articles 2 and is capable of conductive interconnecting piece 3.
The length of bow strip 2 is less than or equal to main gate line/back electrode length on cell piece 1.
The interconnecting piece 3 is face type interconnecting piece.
It is copper strips that the bow strip 2, which is inside, the bow strip of outside package tin cream, bow strip 2 and main gate line/back electricity
It is connected between pole by tin cream.
Inside is copper strips, and outer layer is tinning layer, and the fusing point of tinning layer is lower than copper and silicon, after tin layers fusing, is had centainly
Connection is realized in mobility, filling play movement, it is ensured that welding effect.
Stating face type interconnecting piece is soft planar conducting surface.
Conducting surface is capable of conductive metallic conduction face, such as copper foil, conducting adhesive cloth using soft.Comparative example
A kind of conventional welding 4 of solar cell module is sequentially arranged cell piece 1, adjacent two panels for connecting front and back
Cell piece is connected by two conventional weldings 4, and the direction of welding is arranged along the direction of cell piece main gate line, the front end portion of welding
It is connect with main gate line/back electrode of upper a piece of cell piece 1, back electrode/main grid of the rear end part of welding a piece of cell piece 1 under
Line connection.
Claims (8)
1. a kind of welding for laminated type solar battery sheet component, it is characterised in that: can be with the sun including at least two
Can main gate line/back electrode connection bow strip on cell piece, have between two adjacent piece-root grafting touch articles and be capable of conductive interconnecting piece.
2. the welding according to claim 1 for laminated type solar battery sheet component, it is characterised in that: bow strip
Length is less than or equal to main gate line/back electrode length on cell piece.
3. the welding according to claim 1 for laminated type solar battery sheet component, it is characterised in that: the connection
Portion is line style interconnecting piece.
4. the welding according to claim 1 for laminated type solar battery sheet component, it is characterised in that: the connection
Portion is face type interconnecting piece.
5. the welding according to claim 1 for laminated type solar battery sheet component, it is characterised in that: the contact
Item is that inside is copper strips, and the bow strip of outside package tin cream is connected between bow strip and main gate line/back electrode by tin cream.
6. the welding according to claim 3 for laminated type solar battery sheet component, it is characterised in that: the line style
Interconnecting piece is at least one conductor wire for connecting two piece-root grafting touch articles.
7. the welding according to claim 4 for laminated type solar battery sheet component, it is characterised in that: the face type
Interconnecting piece is soft planar conducting surface.
8. the welding according to claim 3 for laminated type solar battery sheet component, it is characterised in that: the line style
Interconnecting piece is netted/line-shaped conductive face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820251935.0U CN208315571U (en) | 2018-02-12 | 2018-02-12 | A kind of welding for laminated type solar battery sheet component |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820251935.0U CN208315571U (en) | 2018-02-12 | 2018-02-12 | A kind of welding for laminated type solar battery sheet component |
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| CN208315571U true CN208315571U (en) | 2019-01-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108365040A (en) * | 2018-02-12 | 2018-08-03 | 无锡嘉瑞光伏有限公司 | A kind of welding for laminated type solar battery sheet component |
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2018
- 2018-02-12 CN CN201820251935.0U patent/CN208315571U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108365040A (en) * | 2018-02-12 | 2018-08-03 | 无锡嘉瑞光伏有限公司 | A kind of welding for laminated type solar battery sheet component |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230801 Address after: 831799 No. 6, the Pearl River Road, Beiting Industrial Park, Jimsar County, Changji Hui Autonomous Prefecture, Xinjiang Patentee after: Jimusar Jiarui Yubang Semiconductor Materials Co.,Ltd. Address before: 214200 Jinzhangzhu Industrial Zone, Yixing City, Wuxi City, Jiangsu Province Patentee before: NICE SUN PV Co.,Ltd. |
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| TR01 | Transfer of patent right |