CN106711265B - A kind of photovoltaic interconnecting strip - Google Patents
A kind of photovoltaic interconnecting strip Download PDFInfo
- Publication number
- CN106711265B CN106711265B CN201611173571.0A CN201611173571A CN106711265B CN 106711265 B CN106711265 B CN 106711265B CN 201611173571 A CN201611173571 A CN 201611173571A CN 106711265 B CN106711265 B CN 106711265B
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- Prior art keywords
- interconnecting strip
- base band
- silvering
- photovoltaic
- washing
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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
- Y02E10/52—PV systems with concentrators
Abstract
The present invention provides the photovoltaic interconnecting strip that a kind of resistivity is low and reflecting effect is good.A kind of photovoltaic interconnecting strip, including base band, the base band has the back side for receiving the front of light and for connecting solar battery sheet, the photovoltaic interconnecting strip further includes the tin coating that the positive silvering of the base band is arranged in covering, the base band back side is arranged in covering, and the front of the silvering outwardly protrudes arc-shaped curved surface backwards to the base band.The line for constituting the center of circle of each camber line of the arc-shaped curved surface extends along the length direction of the interconnecting strip.
Description
Technical field
The present invention relates to photovoltaic field, in particular to a kind of photovoltaic interconnecting strip.
Background technique
Increase again as photovoltaic leader's implementing plan, photovoltaic industry circle and research institution promote photovoltaic module power in the recent period
Strong attention rate, wherein cell piece connecting material --- the improvement of interconnecting strip can more efficiently lifting assembly overall output function
Rate.As the efficient component that graduallys mature of industry certainly will be as mainstream in the industry.Component is to connect monolithic battery piece with interconnecting strip
And then it is packaged into a generator unit.Traditional interconnecting strip mainly uses the structure of Copper base material coating tin alloy layers, and coating material is logical
It is often Sn60%/Pb40%, Sn63%/Pb37%, coating layer thickness 0.02-0.04mm.Resistivity is up to (3.0u Ω .cm), loss electricity
Energy.Interconnecting strip blocks cell piece light-receiving area when connecting cell piece, and smooth interconnecting strip surface is emitted onto interconnecting strip again
The light on surface reflects back, to reduce the efficiency of light energy utilization again.
Summary of the invention
In view of the above-mentioned problems, the photovoltaic interconnecting strip that and a kind of reflecting effect low the object of the present invention is to provide resistivity is good.
In order to solve the above technical problems, a kind of technical solution that the present invention uses are as follows:
A kind of photovoltaic interconnecting strip, including base band, the base band have for receiving the front of light and for connecting the sun
The back side of energy cell piece, the photovoltaic interconnecting strip further include that covering setting exists in the positive silvering of the base band, covering setting
The front of the tin coating at the base band back side, the silvering outwardly protrudes arc-shaped curved surface backwards to the base band.
Preferably, the line for constituting the center of circle of each camber line of the arc-shaped curved surface prolongs along the length direction of the interconnecting strip
It stretches.
Preferably, the positive middle part of the silvering outwardly protrudes.
Preferably, the tin coating is made of leypewter.
It is highly preferred that by weight, stanniferous 60% leaded 40% in the leypewter.
The present invention by adopting the above technical scheme, has the advantages that compared with prior art
The front of interconnecting strip is silver-plated, improves reflecting rate 30%, reduces body resistivity to 2.0u Ω .cm；Silver coating uses arc
Processing increases angle of reflection, improves illumination utilization rate.
Detailed description of the invention
Attached drawing 1 is the schematic diagram of photovoltaic welding belt of the invention.
In above-mentioned attached drawing:
1, glass panel；2, silver coating；3, base band；4, tin coating；5, cell piece.
Specific embodiment
The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawing, so that advantages and features of the invention energy
It is easier to be understood by the person skilled in the art.
Referring to shown in attached drawing 1, a kind of photovoltaic interconnecting strip, after encapsulated, photovoltaic interconnecting strip is located at glass panel 1 and solar energy
Between cell piece 5.Photovoltaic interconnecting strip includes base band 3, and the base band 3 has for receiving the front of light and for connecting the sun
The back side of energy cell piece.The photovoltaic interconnecting strip further includes covering setting in the positive silvering 2 of the base band 3, covering setting
Tin coating 4 at 3 back side of base band.The front of the silvering 2 outwardly protrudes arc-shaped curved surface backwards to the base band 3.Structure
Line at the center of circle of each camber line of the arc-shaped curved surface extends along the length direction of the interconnecting strip.The silvering 2
Positive middle part outwardly protrudes, that is to say, that interconnecting strip is the low arch in the high both sides in middle part.The tin coating 4 is by leypewter
It is made, by weight, stanniferous 60% leaded 40% in the leypewter.
The present invention uses red copper or fine copper for substrate, and in welding non-solder face, (i.e. positive) is silver-plated, mentions high solar reflectivity,
Interconnecting strip body resistivity is reduced simultaneously.Sn60%/Pb40% tin alloy is plated with welding battery face (i.e. the back side), is used for and battery sheet grating
Wire bonding.
Silver-plated key step are as follows: acidity is deoiled, washing, chemical polishing, distillation washing, is activated, and washing is pre- silver-plated, silver-plated,
Washing neutralizes, washing, coats protective agent, washing, and hot pure water washing is centrifuged, dry.Ag, which is added, generally takes Ag(CN) form
It is added, but appropriate NO3 -1, be conducive to the conductive capability for improving solution.It is silver-plated to be carried out at a temperature of 20 DEG C or so.It is protected in silver plating liquid
A certain amount of free cyanide to be held, bath stability is made, coating crystallization is careful, uniformly, solution conductivity ability and dispersibility are improved,
Anode is promoted normally to dissolve.NFB.1/NFB.2 brightener is added when plated film and expands current density, keeps coating crystallization more careful,
Reflecting rate is more preferably.After coating, with diamond wire unhairing, camber silver layer surface of polishing.When glass, interconnecting strip and cell piece seal
After dress, illumination is irradiated to arc silver layer surface, and light is reflected back glass surface, and glass is reflecting light to cell piece surface, thus will
Light makes full use of, and improves power output.
Above-mentioned interconnecting strip has the advantages that
Interconnecting strip front is silver-plated, improves reflecting rate 30%, reduces body resistivity to 2.0u Ω .cm；
Silver coating uses arc process, increases angle of reflection, improves illumination utilization rate；
Brightener enhancing coating surface crystallization is added when plated film, further increases reflecting rate；
It is emitted onto the light of interconnecting strip, by scattering, being reflected back cell piece, the luminous energy of cell piece absorption can be promoted, accordingly
Power output will improve 1% or so.
The above embodiments merely illustrate the technical concept and features of the present invention, is a kind of preferred embodiment, and purpose exists
In those skilled in the art can understand the contents of the present invention and implements accordingly, guarantor of the invention can not be limited with this
Protect range.Equivalent change or modification made by all Spirit Essences according to the present invention, should all cover in protection scope of the present invention
Within.
Claims (4)
1. a kind of photovoltaic interconnecting strip, including base band, the base band has for receiving the front of light and for connecting solar energy
The back side of cell piece, it is characterised in that: the photovoltaic interconnecting strip further includes that covering is arranged in the positive silvering of the base band, covers
The tin coating at the base band back side is arranged in lid, and the front of the silvering outwardly protrudes arc-shaped curved surface backwards to the base band,
The positive middle part of the silvering outwardly protrudes, and the body resistivity of the interconnecting strip is 2.0u Ω .cm；
The silvering is made as follows: acidity is deoiled, washing, chemical polishing, and distillation washing activates, washing, preplating
Silver, it is silver-plated, it washes, neutralizes, washing coats protective agent, washing, and hot pure water washing is centrifuged, dry；Wherein, using containing free
Cyanide and NO3 -1Silver plating liquid, NFB.1/NFB.2 brightener is added when plated film, after coating, with diamond wire unhairing, polishing
At the silvering with the arc-shaped curved surface.
2. photovoltaic interconnecting strip according to claim 1, it is characterised in that: constitute the circle of each camber line of the arc-shaped curved surface
The line of the heart extends along the length direction of the interconnecting strip.
3. photovoltaic interconnecting strip according to claim 1, it is characterised in that: the tin coating is made of leypewter.
4. photovoltaic interconnecting strip according to claim 3, it is characterised in that: by weight, stanniferous 60% in the leypewter
Leaded 40%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611173571.0A CN106711265B (en) | 2016-12-16 | 2016-12-16 | A kind of photovoltaic interconnecting strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611173571.0A CN106711265B (en) | 2016-12-16 | 2016-12-16 | A kind of photovoltaic interconnecting strip |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106711265A CN106711265A (en) | 2017-05-24 |
| CN106711265B true CN106711265B (en) | 2019-03-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611173571.0A Active CN106711265B (en) | 2016-12-16 | 2016-12-16 | A kind of photovoltaic interconnecting strip |
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| CN (1) | CN106711265B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107799615B (en) * | 2017-10-20 | 2021-04-13 | 杭州瞩日能源科技有限公司 | Solar cell unit, photovoltaic cell module and preparation process thereof |
| CN108172639A (en) * | 2017-12-15 | 2018-06-15 | 中建材浚鑫科技有限公司 | Multiple-grid efficient photovoltaic module |
| CN115416510B (en) * | 2022-10-08 | 2024-04-09 | 湖南汽车工程职业学院 | Parking space wireless charging system based on light storage, charging and discharging integration |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203085561U (en) * | 2013-02-07 | 2013-07-24 | 凡登（常州）新型金属材料技术有限公司 | Solder strip for increasing power of photovoltaic battery assembly |
| CN203659898U (en) * | 2014-01-10 | 2014-06-18 | 常州天合光能有限公司 | Micro-condensation photovoltaic welding strip |
| CN204632766U (en) * | 2014-12-24 | 2015-09-09 | 无锡尚德太阳能电力有限公司 | Compound embossing photovoltaic welding belt |
| CN205542834U (en) * | 2016-02-23 | 2016-08-31 | 孙益民 | Structure photovoltaic solder strip |
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2016
- 2016-12-16 CN CN201611173571.0A patent/CN106711265B/en active Active
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| Publication number | Publication date |
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| CN106711265A (en) | 2017-05-24 |
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| CB02 | Change of applicant information |
Address after: 215542 Jiangsu city of Suzhou province Changshou City Shajiabang Changkun Industrial Park Teng Hui Road No. 1 Applicant after: Suzhou Tenghui Photovoltaic Technology Co., Ltd. Address before: 215542 Jiangsu city of Suzhou province Changshou City Shajiabang Changkun Industrial Park Teng Hui Road No. 1 Applicant before: Zhongli Talesun Solar Technology Co., Ltd. |
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