CN204375774U - The efficient welding of photovoltaic module transfer matic low resistance - Google Patents
The efficient welding of photovoltaic module transfer matic low resistance Download PDFInfo
- Publication number
- CN204375774U CN204375774U CN201420839550.8U CN201420839550U CN204375774U CN 204375774 U CN204375774 U CN 204375774U CN 201420839550 U CN201420839550 U CN 201420839550U CN 204375774 U CN204375774 U CN 204375774U
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- China
- Prior art keywords
- base band
- rod base
- welding rod
- salient point
- photovoltaic module
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- 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.)
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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 relates to the efficient welding of a kind of photovoltaic module transfer matic low resistance, it comprises welding rod base band (1), described welding rod base band (1) is copper strips, it is characterized in that the upper surface of described welding rod base band (1) is placed with salient point (1.1) on three row along welding rod base band (1) length direction, salient point (1.2) under the lower surface of described welding rod base band (1) is placed with three row along welding rod base band (1) length direction, the upper surface of described welding rod base band (1) is provided with tinning layer (2), the thickness of described upper tinning layer (2) is 10 μm ~ 25 μm, the lower surface of described welding rod base band (1) is provided with lower tinning layer (3), the thickness of described lower tinning layer (3) is 8 μm ~ 30 μm, the upper surface of described upper tinning layer (2) is provided with black light-absorption layer (4).The efficient welding of this photovoltaic module transfer matic low resistance has reduction resistivity, improves generating efficiency, there is not the circumscribed advantage of importing condition.
Description
Technical field
The utility model relates to the efficient welding of a kind of photovoltaic module transfer matic low resistance.
Background technology
The production of photovoltaic module changes the trend of automatic welding line into from Manual line, from 2008 transfer matic market owning amounts 10%, to 2015 transfer matic market owning amounts more than 50%, then will reach more than 80% to the year two thousand twenty transfer matic market owning amount.
At present, Sn60Pb40+ is greater than to the red copper of 99.97%, machine welding roll axle interconnecting strip electricalresistivityρ (20 DEG C, Resistivity) about 0.025 Ω mm2/m on market, one side tinning layer thickness is generally in 10um-40um scope.Calculate with the assembly unit price of 4.3W polycrystalline/sheet, 60 assemblies, 0.25*1.6 welding, 0.6 $/W, generated output is on average at 251W/ assembly, the sales price of each assembly is about 1000$, interconnecting strip welding calculates with 100$/KG, single component uses interconnected treaty 195g, removes the profit of assembly, and be equivalent to that interconnecting strip is assembly cost 1.65%, namely the cost of the assembly of 4.1W is equivalent to, to one of the power major effect of photovoltaic module key factor.
The difficulty bottleneck point that current photovoltaic welding belt faces:
1, the bottleneck of resistivity of material:
Be greater than the TU1 oxygen-free copper of 99.97%, electricalresistivityρ's (20 DEG C, Resistivity)≤0.01724 Ω mm2/m has reached now international higher level technology, and cannot have breakthrough in the process costs of existing permission improves again;
Within the scope of guarantee Sn60Pb40 scolding tin fusing point 183-190 DEG C, Sn, Pb purity respectively with 99.99 control, can not reduce its resistivity;
Machine welding roll axle interconnecting strip electricalresistivityρ's (20 DEG C, Resistivity) ≈ 0.025 Ω mm2/m. on market
2, coating layer thickness stability, the accuracy bottleneck of photovoltaic welding belt:
Most domestic welding all with product thickness ± 20um management and control, i.e. 15um-40um scope production management and control;
Can not accurate Position Design one side coating layer thickness.
Therefore seek a kind of reduction resistivity, improve generating efficiency, there is not the efficient welding of importing condition circumscribed photovoltaic module transfer matic low resistance particularly important.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, provides a kind of and reduces resistivity, improve generating efficiency, there is not the efficient welding of importing condition circumscribed photovoltaic module transfer matic low resistance.
The purpose of this utility model is achieved in that
The efficient welding of a kind of photovoltaic module transfer matic low resistance, it comprises welding rod base band, described welding rod base band is copper strips, the thickness of described welding rod base band is 0.2mm ~ 0.3mm, the width of described welding rod base band is 1.2mm ~ 1.8mm, the upper surface of described welding rod base band is placed with salient point on three row along welding rod base band length direction, the height of upper salient point is 12 μm, salient point under the lower surface of described welding rod base band is placed with three row along welding rod base band length direction, the height of lower salient point is 6 μm, the upper surface of described welding rod base band is provided with tinning layer, the thickness of described upper tinning layer is 10 μm ~ 25 μm, the lower surface of described welding rod base band is provided with lower tinning layer, the thickness of described lower tinning layer is 8 μm ~ 30 μm, the upper surface of described upper tinning layer is provided with black light-absorption layer.
The diameter of upper salient point is 0.2mm, and the distance of upper salient point distance welding rod base band two edges is 0.15mm ~ 0.45mm, and the spacing between the upper salient point of adjacent two row is 0.15mm, and on same row, the distance of adjacent two upper salient points is 0.15mm ~ 0.45mm.
The diameter of lower salient point is 0.2mm, and the distance of lower salient point distance welding rod base band two edges is 0.15mm ~ 0.45mm, and the spacing between the lower salient point of adjacent two row is 0.15mm, and on same row, the distance of adjacent two lower salient points is 0.15mm ~ 0.45mm.
Compared with prior art, the beneficial effects of the utility model are:
The utility model photovoltaic module transfer matic low resistance efficient welding material composition keeps the copper strips of common welding, copper strips positive and negative is processed to the Accuracy control being then coated with tin and can carrying out in ± 1um scope to tin thickness, the utility model can reduce 9 ~ 20.8% of welding resistance in photovoltaic module, photovoltaic solar cell component power can promote 0.81 ~ 5.47W, the utility model adopts conventional soldering techniques to weld, and there is not importing condition limitation.Therefore the efficient welding of this photovoltaic module transfer matic low resistance has reduction resistivity, improves generating efficiency, there is not the circumscribed advantage of importing condition.
Accompanying drawing explanation
Fig. 1 is the structural representation of the efficient welding of the utility model photovoltaic module transfer matic low resistance.
Fig. 2 is the A-A cutaway view of Fig. 1.
Wherein:
Welding rod base band 1, upper salient point 1.1, lower salient point 1.2
Upper tinning layer 2
Lower tinning layer 3
Black light-absorption layer 4.
Embodiment
See Fig. 1 and Fig. 2, the efficient welding of a kind of photovoltaic module transfer matic low resistance that the utility model relates to, it comprises welding rod base band 1, and described welding rod base band 1 is copper strips, the thickness of described welding rod base band 1 is 0.2mm ~ 0.3mm, and the width of described welding rod base band 1 is 1.2mm ~ 1.8mm.
The upper surface of described welding rod base band 1 is placed with salient point 1.1 on three row along welding rod base band 1 length direction, the diameter of upper salient point 1.1 is 0.2mm, upper salient point 1.1 is 0.15mm ~ 0.45mm apart from the distance of welding rod base band 1 two edges, spacing between the upper salient point 1.1 of adjacent two row is 0.15mm, on same row, the distance of adjacent two upper salient points 1.1 is 0.15mm ~ 0.45mm, and the height of upper salient point 1.1 is 12 μm.
Salient point 1.2 under the lower surface of described welding rod base band 1 is placed with three row along welding rod base band 1 length direction, the diameter of lower salient point 1.2 is 0.2mm, lower salient point 1.2 is 0.15mm ~ 0.45mm apart from the distance of welding rod base band 1 two edges, spacing between the lower salient point 1.2 of adjacent two row is 0.15mm, on same row, the distance of adjacent two lower salient points 1.2 is 0.15mm ~ 0.45mm, and the height of lower salient point 1.2 is 6 μm.
The upper surface of described welding rod base band 1 is provided with tinning layer 2, and the thickness of described upper tinning layer 2 is 10 μm ~ 25 μm, is preferably 14 μm; The lower surface of described welding rod base band 1 is provided with lower tinning layer 3, and the thickness of described lower tinning layer 3 is 8 μm ~ 30 μm, is preferably 8 μm.The upper surface of described upper tinning layer 2 is provided with black light-absorption layer 4.The thickness of black light-absorption layer 4 is 15 ~ 20 μm.
Upper salient point 1.1 in described welding rod base band 1 and lower salient point 1.2 can increase the adhesive force of tinning layer, and the setting of upper salient point 1.1 and lower salient point 1.2 effectively reduces the use amount being coated with tin, the usage ratio of copper and tin is improved, resistance due to copper is less than the resistance of tin, makes the efficient welding entirety of photovoltaic module transfer matic low resistance reduce resistance.
Black light-absorption layer 4 according to the nanocrystalline principles of chemistry, black light-absorption layer 4 be the black light-absorbing film of antiradar reflectivity, can form for black UV coating application, the effect requirements of weld physics performance can be reached, micro-optically focused can be utilized again to reduce external reflectance.
Claims (3)
1. the efficient welding of photovoltaic module transfer matic low resistance, it comprises welding rod base band (1), described welding rod base band (1) is copper strips, the thickness that it is characterized in that described welding rod base band (1) is 0.2mm ~ 0.3mm, the width of described welding rod base band (1) is 1.2mm ~ 1.8mm, the upper surface of described welding rod base band (1) is placed with salient point (1.1) on three row along welding rod base band (1) length direction, the height of upper salient point (1.1) is 12 μm, salient point (1.2) under the lower surface of described welding rod base band (1) is placed with three row along welding rod base band (1) length direction, the height of lower salient point (1.2) is 6 μm, the upper surface of described welding rod base band (1) is provided with tinning layer (2), the thickness of described upper tinning layer (2) is 10 μm ~ 25 μm, the lower surface of described welding rod base band (1) is provided with lower tinning layer (3), the thickness of described lower tinning layer (3) is 8 μm ~ 30 μm, the upper surface of described upper tinning layer (2) is provided with black light-absorption layer (4).
2. the efficient welding of a kind of photovoltaic module transfer matic low resistance according to claim 1, it is characterized in that the diameter of salient point (1.1) is 0.2mm, the distance of upper salient point (1.1) distance welding rod base band (1) two edges is 0.15mm ~ 0.45mm, spacing between the upper salient point (1.1) of adjacent two row is 0.15mm, and on same row, the distance of adjacent two upper salient points (1.1) is 0.15mm ~ 0.45mm.
3. the efficient welding of a kind of photovoltaic module transfer matic low resistance according to claim 1 and 2, it is characterized in that the diameter of lower salient point (1.2) is 0.2mm, the distance of lower salient point (1.2) distance welding rod base band (1) two edges is 0.15mm ~ 0.45mm, spacing between the lower salient point (1.2) of adjacent two row is 0.15mm, and on same row, the distance of adjacent two lower salient points (1.2) is 0.15mm ~ 0.45mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420839550.8U CN204375774U (en) | 2014-12-26 | 2014-12-26 | The efficient welding of photovoltaic module transfer matic low resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420839550.8U CN204375774U (en) | 2014-12-26 | 2014-12-26 | The efficient welding of photovoltaic module transfer matic low resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204375774U true CN204375774U (en) | 2015-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420839550.8U Expired - Fee Related CN204375774U (en) | 2014-12-26 | 2014-12-26 | The efficient welding of photovoltaic module transfer matic low resistance |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105185857A (en) * | 2015-09-11 | 2015-12-23 | 刘畅 | Photovoltaic solar cell assembly welding band |
| CN111129194A (en) * | 2019-12-23 | 2020-05-08 | 浙江正泰太阳能科技有限公司 | Black bus bar, manufacturing method thereof and full-black photovoltaic module |
-
2014
- 2014-12-26 CN CN201420839550.8U patent/CN204375774U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105185857A (en) * | 2015-09-11 | 2015-12-23 | 刘畅 | Photovoltaic solar cell assembly welding band |
| CN105185857B (en) * | 2015-09-11 | 2017-02-01 | 刘畅 | Photovoltaic solar cell assembly welding band |
| CN111129194A (en) * | 2019-12-23 | 2020-05-08 | 浙江正泰太阳能科技有限公司 | Black bus bar, manufacturing method thereof and full-black photovoltaic module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150603 Termination date: 20171226 |