CN203839390U - Highly-weldable high-efficiency photovoltaic welding tape - Google Patents
Highly-weldable high-efficiency photovoltaic welding tape Download PDFInfo
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- CN203839390U CN203839390U CN201420246921.1U CN201420246921U CN203839390U CN 203839390 U CN203839390 U CN 203839390U CN 201420246921 U CN201420246921 U CN 201420246921U CN 203839390 U CN203839390 U CN 203839390U
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- base band
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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 highly-weldable high-efficiency photovoltaic welding tape. The highly-weldable high-efficiency photovoltaic welding tape includes a conductive base tape; the conductive base tape is made of elementary substances or alloy materials and has an upper wide surface and a lower wide surface; a plurality of groove assemblies are distributed on at least one wide surface of the conductive base tape; each groove assembly is composed of a plurality of continuous grooves; coupling platforms are left between different groove assemblies; and the height of the coupling platforms is not smaller than the highest point of the grooves, and the diameter of the maximum inscribed circle of the coupling platforms is not smaller than 0.1mm. According to the highly-weldable high-efficiency photovoltaic welding tape of the utility model, the coupling platforms of a certain area are left between the groove assemblies on the surface of the conductive base tape, and therefore, requirements of a binding force of the welding tape and a battery sheet can be satisfied, and the proportion of the area of the grooves to the area of the welding tape can be increased maximally, and the power of a whole battery component can be improved.
Description
Technical field
The utility model belongs to photovoltaic welding belt processing technique field, particularly a kind of high high-efficiency photovoltaic welding that welds.
Background technology
Along with the fast development of World Economics, energy resource consumption is increasing, and countries in the world are the application of demand new forms of energy and universal all.The greenhouse gas effect causing due to CO2 emission causes global warming and causes natural calamity, and countries in the world are especially strong to the demand of clean regenerative resource.Since the global crisis causing in U.S.'s subprime crisis in 2007 spreads and expands, for stimulating economic growth, each state has all passed through the measure that regenerative resource is used in more positive encouragement.U.S.'s Obama administration proposes to invest 1,500 hundred million dollars for clean energy resource at coming 10 years; European Union's target setting accounts for regenerative resource to use the ratio of the energy to bring up to 20% at the year two thousand twenty; Japan proposes to make more than 70% New Dwelling that solar panel (about 70GW) is installed in the year two thousand thirty.Not enough for alleviating photovoltaic domestic demand, on March 26th, 2009, China Ministry of Finance announces will promote to implement " solar roof project " demonstration project.The Ministry of Finance, house and town and country construction portion combine the < < of appearance about clearly proposition in the implementation guideline > > of quickening propelling solar photoelectric Application in Building, implement " solar roof project " to, photoelectricity Application in Building demonstration project is given fund subsidy, encourages technological progress to put into effect a series of principal measures such as relevant financial support policy, the support on policy of strengthen construction field to scientific and technical innovation, encouragement local government.Present stage is actively pushed forward the photoelectricity architecture-integral demonstrations such as solar energy roof, photovoltaic curtain wall in economically developed, the good big and medium-sized cities of Industry Foundation; Actively be supported in rural area and the generating of remote districts development off-grid type, the pertinent regulations such as implement that power transmission is gone to the countryside, have indicated direction to especially the application of heliotechnics.The photoelectricity architecture-integrals such as solar energy roof, photovoltaic curtain wall of take are breach, may allow in a short time people see and many benefits of applied solar energy also be conducive to spread from now on, excite the enthusiasm of capital of property investment field of solar energy.The new forms of energy policy of various countries perhaps will become next our after this one of the important policies of 15 years world developments that affect.Copenhagen Climate Conference of 2009 has waken, has strengthened the consciousness that people pay close attention to clean energy resource again up.Follow the application of new forms of energy and popularize, the rapid growth impetus of photovoltaic industry is further strengthened and is paid attention to.
Welding (comprising interconnection belt and convergent belt) is the important raw and processed materials in welding photovoltaic component process, welding is normally connected to each other cell piece and the electric current that confluxes by the mode of welding or conducting resinl bonding, the quality of welding quality is by directly having influence on the collection efficiency of photovoltaic module electric current, very large to the power influences of photovoltaic module.How, by the isomerization of welding, increase the conversion ratio of cell piece, reduce fragment rate, be one of problem of welding industry research always.
Chinese patent CN101789452A has provided a kind of tin-coated welding strip, and it comprises the painting tin layer on copper strips and surface thereof, is coated with tin layer surface and has equally distributed hole shape body.This welding makes sunlight, in the shape body of hole, diffuse reflection occur to a certain extent, has improved the energy of accepting sunlight.But diffuse reflection only occurs its hole shape body, the sunlight ratio that is reflected back cell piece is very little, and the conversion ratio of raising is limited; In addition, its pit is to prepare in being coated with tin process, can produce inhomogeneous solder layer, and can produce the phenomenon not firm with welding of battery film, occurs rosin joint.
Chinese patent CN102569470A has provided a kind of at the surperficial V-type groove of preparing perpendicular to welding length direction of welding, reduces the hidden of cell piece split and fragment rate with this.But this patent welding V-type groove is perpendicular to the obvious spacing of nothing between length direction and V-type groove, and therefore this welding is unstable when with welding of battery film, not prison welding.
Chinese patent ZL201320071240.1, ZL201320071182.2, ZL201320110484.6, ZL201320463993.7, ZL201320466223.8 etc., have proposed by the electric conducting base band of welding is carried out to multi-form isomery, realize the fractional reuse of welding surface reflection, adjust the welding fastness between welding and cell piece, reduce the electricity damage of confluxing that welding brings, and the yield stress that reduces welding is to improve the weather-proof safety of assembly and the fragment rate in production process.Practice confirms, above-mentioned patent group remains the common deficiency of a class: when on adopting market, existing automatic string welding machine welds, unless significantly improved the gross area of base band plane on the wide surface of isomery, account for the wide total surface area ratio of isomery, otherwise contact between the silver-colored wide surface of isomery of the back of the body and back of the body silver, occur that the risk of rosin joint is higher.Yet the gross area that significantly improves base band plane on the wide surface of isomery accounts for the consequence of the wide total surface area ratio of isomery, the reason that causes just the welding surface reflection multiplexing capacity in positive silver-colored face to decline to a great extent, runs counter to the main original intention of product design.
Utility model content
The technical problems to be solved in the utility model is: for rationally guarantee to realize by the interconnected surface isomerization with electric conducting base band interconnected be with reflective multiplexing/when stress reduces, solution welding fastness reduction/rosin joint risk between isomery welding and cell piece under automatic string welding machine environment increases, and the utility model provides a kind of height for photovoltaic module can weld efficient welding.
The utility model solves the technical scheme that its technical problem adopts: a kind of high high-efficiency photovoltaic welding that welds, comprise electric conducting base band, described electric conducting base band is metal simple-substance or alloy material, it has upper and lower two wide surfaces, described electric conducting base band has at least a wide surface distributed to have a plurality of groove set, each groove set is comprised of a plurality of continuous grooves, between different groove set, leave and be coupled platform, the described platform that is coupled is for being highly not less than groove peak, and the diameter of its maximum inscribed circle is not less than the platform of 0.1mm.Owing to being coupled the existence of platform, the groove in groove set is continuous distribution, is also that adjacent notches no longer needs reserved jig/be coupled platform each other.
Technique scheme is made groove set by the surface at electric conducting base band, makes part surface reverberation again to reflex to battery surface by the glass/air surface of assembly, thereby has realized the multiplexing ability of part welding surface reflection.On the other hand, between adjacent notches set, have and be coupled platform, can guarantee the binding strength of welding and cell piece.A large amount of experiments confirms, while using currently marketed main flow automatic string welding machine, wish guarantees that in welding process, scolder has enough welding fastness to the back of the body silver surface of battery, the diameter that is coupled the maximum inscribed circle of platform is not less than 0.1mm, on the other hand, for welding as much as possible surface is left for, build reflective groove set, to promote welding surface reflection multiplexing capacity, be coupled platform described in general control and be less than 20mm along the maximum length of electric conducting base band length direction.
The described diameter that is coupled the maximum inscribed circle of platform is less than the width on its wide surface, place.In the situation that guaranteeing that welding can weld or bond and meet welding and peel off pulling force, dwindle being as much as possible coupled the length of platform on conductive base bandwidth face width degree and increasing groove, obtain the best ratio that is coupled platform and reflective groove.
Further experimental demonstration shows, under currently marketed main flow automatic string welding machine environment, and cost benefit that can welding from industrialization steady production height, the described diameter that is coupled the maximum inscribed circle of platform is greater than 0.25mm, and described in be coupled platform and be less than 2.5mm along the maximum length of electric conducting base band length direction.
The area ratio m that the described surface area that is coupled platform accounts for its conductive base bandwidth surface, place is 5%≤m < 95%.
The area ratio m that the described surface area that is coupled platform accounts for its conductive base bandwidth surface, place is 25%≤m < 75%.
Described be coupled platform be shaped as parallelogram or trapezoidal.
Described be coupled platform be shaped as rectangle, square or isosceles trapezoid.
The degree of depth of described groove is less than 75% of electric conducting base band thickness.
The degree of depth of described groove is even.
The degree of depth of described groove is inhomogeneous.
After welding welding, can there is nature trickling in the soldering-tin layer on surface, makes the luminous groove angle of reality after having welded become large.For adopting non-welding manner (typically as bond by conducting resinl battery and interconnected band), the problems referred to above can not occur.According to concrete application process, generally selecting groove is the V-shaped groove of angle between 75 °-138 °, to ensure that preferably welding surface reflection reflexes to the efficiency of battery surface again by glass/air surface.
Described groove is parallel with the length direction of electric conducting base band.
Also can there is the angle that is less than 90 ° in the length direction of V-shaped groove and electric conducting base band.When angle levels off to or equal 90 °, V-shaped groove reflective can large portion after again reflecting by glass/air surface or all falls back to welding surface, do not have by the multiplexing effect of cell piece.
The described platform that is coupled is higher than the peak of described groove.
The outer surface of welding applies or is electroplate with tin-based solder layer, thereby can directly weld; And between electric conducting base band and tin-based solder layer, can prepare protective layer, to prevent that welding is aging, dependable performance.
The outer surface of welding also can apply or be electroplate with conduction reflector layer, is applicable to the situation that welding is combined by non-welding (as conducting resinl bonding) mode between cell piece.
Between described solder layer or conduction reflector layer and electric conducting base band, be also prepared with transition zone.
A kind of high high-efficiency photovoltaic welding that welds that the utility model is announced, by reserve the platform that is coupled of certain area between surface groove set, welding has surface reflection by the multiplexing ability of glass air interface reflections telegram in reply pool surface of assembly, and improve solved be with reeded surface on automatic string welder, carry on the back silver-colored face rosin joint risk high/weld hypodynamic technical barrier.
Accompanying drawing explanation
Fig. 1 is the structural representation that height of the present utility model can weld the embodiment 1 of high-efficiency photovoltaic welding.
Fig. 2 is the structural representation that height of the present utility model can weld the embodiment 2 of high-efficiency photovoltaic welding.
Fig. 3 is the structural representation that height of the present utility model can weld the embodiment 3 of high-efficiency photovoltaic welding.
Fig. 4 is the perspective view that height of the present utility model can weld the embodiment 3 of high-efficiency photovoltaic welding.
Fig. 5 is the profile of the groove set of embodiment 3 of the present utility model.
Fig. 6 is the profile that is coupled platform of embodiment 3 of the present utility model.
Fig. 7 is coupled the profile of platform in the another kind of execution mode of embodiment 3 of the present utility model.
Fig. 8 is the structural representation that height of the present utility model can weld the embodiment 4 of high-efficiency photovoltaic welding.
Fig. 9 is the structural representation that height of the present utility model can weld the embodiment 5 of high-efficiency photovoltaic welding.
Figure 10 is the structural representation that height of the present utility model can weld the embodiment 6 of high-efficiency photovoltaic welding.
Embodiment
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, basic structure of the present utility model is only described in a schematic way, so it only show the formation relevant with the utility model.
Embodiment 1
Select TU1 oxygen-free copper as electric conducting base band 1, as shown in Figure 1, on an one wide surface, there are two along the groove set 2 of electric conducting base band 1 length direction, two groove set 2 are separately positioned on the both sides on wide surface, each groove set 2 is comprised of a plurality of continuous grooves 3, that between described two groove set 2, leaves the rectangle that extends along electric conducting base band 1 length direction is coupled platform 4, describedly be coupled the height of platform 4 and the peak of groove 3 is contour, the diameter that is coupled the maximum inscribed circle of platform 4 is 0.1mm, is less than the width on its wide surface, place; Each groove 3 is V-type groove, and its v-angle is 138 °, and groove 3 is all parallel with the length direction of electric conducting base band 1; The degree of depth of groove 3 is 50% of electric conducting base band thickness, and the degree of depth is uniform; The area ratio m that the surface area that is coupled platform 4 accounts for its place electric conducting base band 1 wide surface is 5%.
By the mode that applies or electroplate, conduction reflector layer is prepared on above-mentioned electric conducting base band uniformly, is prepared into height and can welds high-efficiency photovoltaic welding.
Adopt 60 156*156 polysilicon chips, the component power that the power ratio of using this photovoltaic welding belt to prepare a Battery pack assembly is used common welding to prepare exceeds 6W, has improved 2.4%.
The weld force of welding is by tensiometer, along cell piece 45 degree directions, draws welding until welding is peeled off required pulling force from cell piece, and general weld force requires to be greater than 3N, and the welding weld force of the present embodiment is greater than 3N, meets the demands.
Embodiment 2
Select TU1 oxygen-free copper as electric conducting base band 1, as shown in Figure 2, on an one wide surface, there is groove set 2, each groove set 2 is comprised of a plurality of continuous grooves 3, that between different groove set 2, leaves parallelogram is coupled platform 4, described in be coupled the height of platform 4 and the peak of groove 3 is contour, the diameter that is coupled the maximum inscribed circle of platform 4 is 0.5mm, being less than the width on its wide surface, place, is 2.0mm along the maximum length of electric conducting base band 1 length direction; All there is groove 3 in the surrounding that is coupled platform 4; Each groove 3 is V-type groove, and its v-angle is 75 °, and groove 3 becomes 30 degree angles with the length direction of electric conducting base band 1, and parallelogram has two limits parallel with the direction of groove 3; The degree of depth of groove 3 is 35% of electric conducting base band 1 thickness, and the degree of depth is inhomogeneous; The area ratio m that the surface area that is coupled platform 4 accounts for its place electric conducting base band 1 wide surface is 75%.
By the mode that applies or electroplate, tin-lead solder is prepared on above-mentioned electric conducting base band uniformly, is prepared into height and can welds high-efficiency photovoltaic welding.
Adopt 60 156*156 polysilicon chips, the component power that the power ratio of using this photovoltaic welding belt to prepare a Battery pack assembly is used common welding to prepare exceeds 1.5W, has improved 0.6%.
The weld force of welding is by tensiometer, along cell piece 45 degree directions, draws welding until welding is peeled off required pulling force from cell piece, and general weld force requires to be greater than 3N, and the welding weld force of the present embodiment is greater than 5N, meets the demands.
Embodiment 3
Select TU1 oxygen-free copper as electric conducting base band 1, as shown in Figure 3,4, on an one wide surface, there is the spaced groove set 2 of length direction along wide surface, each groove set 2 is comprised of a plurality of continuous grooves 3, that between different groove set 2, leaves rectangle is coupled platform 4, being coupled platform 4 equates in the length of wide face width direction and the width on described wide surface, width is 1.6mm, the diameter of maximum inscribed circle is 0.5mm, being less than the width on its wide surface, place, is 0.5mm along the maximum length of electric conducting base band 1 length direction; Be coupled the height of platform 4 and the peak of groove 3 is contour; Each groove 3 is V-type groove, and its v-angle is 120 °, and groove 3 becomes 30 degree angles with the length direction of electric conducting base band 1; The degree of depth of groove 3 is 35% of electric conducting base band 1 thickness, and the degree of depth is uniform; The area ratio m that the surface area that is coupled platform 4 accounts for its place electric conducting base band 1 wide surface is 95%.As shown in Figure 5, Figure 6, be respectively groove set 2 and the cross-sectional schematic diagram that is coupled platform 4 places, the outer surface of electric conducting base band 1 applies or is electroplate with tin-based solder layer 5.Can also be structure as shown in Figure 7, the outer surface of welding have solder layer 5, and coating or plated conductive reflector layer 6 are also prepared with transition zone 7 between conduction reflector layer 6 and electric conducting base band 1.
Adopt 60 156*156 polysilicon chips, the component power that the power ratio of using this photovoltaic welding belt to prepare a Battery pack assembly is used common welding to prepare exceeds 0.8W, has improved 0.32%.
The weld force of welding is by tensiometer, along cell piece 45 degree directions, draws welding until welding is peeled off required pulling force from cell piece, and general weld force requires to be greater than 3N, and the welding weld force of the present embodiment is greater than 5N, meets the demands.
Embodiment 4
Select TU1 oxygen-free copper as electric conducting base band 1, as shown in Figure 8, on an one wide surface, there is groove set 2, each groove set 2 is comprised of a plurality of continuous grooves 3, that between different groove set 2, leaves parallelogram is coupled platform 4, describedly be coupled the height of platform 4 and the peak of groove 3 is contour, the diameter that is coupled the maximum inscribed circle of platform 4 is 0.3mm, be less than the width on its wide surface, place, all there is up and down groove 3 in what be coupled platform 4, the right and left does not have groove 3, is coupled the both sides of the edge that platform 4 the right and lefts all extend to wide surface; Each groove 3 is V-type groove, and its v-angle is 110 °, and groove 3 becomes 30 degree angles with the length direction of electric conducting base band 1, and parallelogram has two limits parallel with the direction of groove 3; The degree of depth of groove 3 is 35% of electric conducting base band 1 thickness, and the degree of depth is inhomogeneous; The area ratio m that the surface area that is coupled platform 4 accounts for its place electric conducting base band 1 wide surface is 55%.
By the mode that applies or electroplate, tin-lead solder is prepared on above-mentioned electric conducting base band uniformly, is prepared into height and can welds high-efficiency photovoltaic welding.
Adopt 60 156*156 polysilicon chips, the component power that the power ratio of using this photovoltaic welding belt to prepare a Battery pack assembly is used common welding to prepare exceeds 2W, has improved 0.8%.
The weld force of welding is by tensiometer, along cell piece 45 degree directions, draws welding until welding is peeled off required pulling force from cell piece, and general weld force requires to be greater than 3N, and the welding weld force of the present embodiment is greater than 4N, meets the demands.
Embodiment 5
Select TU1 oxygen-free copper as electric conducting base band 1, as shown in Figure 9, on an one wide surface, there are two along the groove set 2 of electric conducting base band 1 length direction, two groove set 2 are separately positioned on the both sides on wide surface, each groove set 2 is comprised of a plurality of continuous grooves 3, that between described two groove set 2, leaves the rectangle that extends along electric conducting base band 1 length direction is coupled platform 4, the described height of platform 4 that is coupled is higher than the peak of groove 3, the diameter that is coupled the maximum inscribed circle of platform 4 is 0.6mm, is less than the width on its wide surface, place; Each groove 3 is V-type groove, and its v-angle is 135 °, and groove 3 is all parallel with the length direction of electric conducting base band 1; The degree of depth of groove 3 is 50% of electric conducting base band thickness, and the degree of depth is uniform; The area ratio m that the surface area that is coupled platform 4 accounts for its place electric conducting base band 1 wide surface is 25%.
By the mode that applies or electroplate, conduction reflector layer is prepared on above-mentioned electric conducting base band uniformly, is prepared into height and can welds high-efficiency photovoltaic welding.
Adopt 60 156*156 polysilicon chips, the component power that the power ratio of using this photovoltaic welding belt to prepare a Battery pack assembly is used common welding to prepare exceeds 4.2W, has improved 1.68%.
The weld force of welding is by tensiometer, along cell piece 45 degree directions, draws welding until welding is peeled off required pulling force from cell piece, and general weld force requires to be greater than 3N, and the welding weld force of the present embodiment is greater than 4N, meets the demands.
Embodiment 6
Select TU1 oxygen-free copper as electric conducting base band 1, as shown in figure 10, on an one wide surface, there are two along the groove set 2 of electric conducting base band 1 length direction, two groove set 2 are separately positioned on the both sides on wide surface, each groove set 2 is comprised of a plurality of continuous grooves 3, that between described two groove set 2, leaves the rectangle that extends along electric conducting base band 1 length direction is coupled platform 4, describedly be coupled the height of platform 4 and the peak of groove 3 is contour, the diameter that is coupled the maximum inscribed circle of platform 4 is 1.6mm, equal the width on its wide surface, place, maximum length along electric conducting base band 1 length direction is 18mm, each groove 3 is V-type groove, and its v-angle is 135 °, and groove 3 is all parallel with the length direction of electric conducting base band 1, the degree of depth of groove 3 is 50% of electric conducting base band thickness, and the degree of depth is uniform, the area ratio m that the surface area that is coupled platform 4 accounts for its place electric conducting base band 1 wide surface is 50%.
By the mode that applies or electroplate, conduction reflector layer is prepared on above-mentioned electric conducting base band uniformly, is prepared into height and can welds high-efficiency photovoltaic welding.
Adopt 60 156*156 polysilicon chips, the component power that the power ratio of using this photovoltaic welding belt to prepare a Battery pack assembly is used common welding to prepare exceeds 1.8W, has improved 0.72%.
The weld force of welding is by tensiometer, along cell piece 45 degree directions, draws welding until welding is peeled off required pulling force from cell piece, and general weld force requires to be greater than 3N, and the welding weld force of the present embodiment is greater than 4N, meets the demands.
Claims (19)
1. one kind high is welded high-efficiency photovoltaic welding, it is characterized in that: comprise electric conducting base band (1), described electric conducting base band (1) is metal simple-substance or alloy material, it has upper and lower two wide surfaces, described electric conducting base band (1) has at least a wide surface distributed to have a plurality of groove set (2), each groove set (2) is comprised of a plurality of continuous grooves (3), between different groove set (2), leave and be coupled platform (4), the described platform (4) that is coupled is for being highly not less than groove peak, and the diameter of its maximum inscribed circle is not less than the platform of 0.1mm.
2. photovoltaic welding belt as claimed in claim 1, is characterized in that: described in be coupled the maximum inscribed circle of platform (4) diameter be less than the width on its wide surface, place.
3. photovoltaic welding belt as claimed in claim 1 or 2, is characterized in that: described in be coupled platform (4) and be less than 20 mm along the maximum length of electric conducting base band (1) length direction.
4. photovoltaic welding belt as claimed in claim 3, is characterized in that: described in be coupled the maximum inscribed circle of platform (4) diameter be greater than 0.25mm, and described in be coupled platform (4) and be less than 2.5mm along the maximum length of electric conducting base band (1) length direction.
5. photovoltaic welding belt as claimed in claim 1, is characterized in that: described in be coupled platform (4) the surface area area ratio m that accounts for its wide surface of place electric conducting base band (1) be 5%≤m < 95%.
6. photovoltaic welding belt as claimed in claim 5, is characterized in that: described in be coupled platform (4) the surface area area ratio m that accounts for its wide surface of place electric conducting base band (1) be 25%≤m < 75%.
7. photovoltaic welding belt as claimed in claim 1 or 2, is characterized in that: described in be coupled platform (4) be shaped as parallelogram or trapezoidal.
8. photovoltaic welding belt as claimed in claim 7, is characterized in that: described in be coupled platform (4) be shaped as rectangle or isosceles trapezoid.
9. photovoltaic welding belt as claimed in claim 1, is characterized in that: the degree of depth of described groove (3) is less than 75% of electric conducting base band (1) thickness.
10. photovoltaic welding belt as claimed in claim 9, is characterized in that: the degree of depth of described groove (3) is even.
11. photovoltaic welding belts as claimed in claim 9, is characterized in that: the degree of depth of described groove (3) is inhomogeneous.
12. photovoltaic welding belts as claimed in claim 1, is characterized in that: described groove (3) is the V-shaped groove of angle between 75 °-138 °.
13. photovoltaic welding belts as described in claim 1 or 12, is characterized in that: described groove (3) is parallel with the length direction of electric conducting base band (1).
14. photovoltaic welding belts as described in claim 1 or 12, is characterized in that: described groove (3) exists with the length direction of electric conducting base band (1) angle that is less than 90 °.
15. photovoltaic welding belts as claimed in claim 1, is characterized in that: described in be coupled platform (4) higher than the peak of described groove (3).
16. photovoltaic welding belts as claimed in claim 1, is characterized in that: the surface of described electric conducting base band (1) applies or be electroplate with solder layer (5).
17. photovoltaic welding belts as claimed in claim 1, is characterized in that: the surface of described electric conducting base band (1) applies or be electroplate with conduction reflector layer (6).
18. photovoltaic welding belts as claimed in claim 16, is characterized in that: between described solder layer (5) and electric conducting base band (1), be also prepared with transition zone (7).
19. photovoltaic welding belts as claimed in claim 17, is characterized in that: between described conduction reflector layer (6) and electric conducting base band (1), be also prepared with transition zone (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420246921.1U CN203839390U (en) | 2014-05-14 | 2014-05-14 | Highly-weldable high-efficiency photovoltaic welding tape |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420246921.1U CN203839390U (en) | 2014-05-14 | 2014-05-14 | Highly-weldable high-efficiency photovoltaic welding tape |
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| CN203839390U true CN203839390U (en) | 2014-09-17 |
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| CN201420246921.1U Withdrawn - After Issue CN203839390U (en) | 2014-05-14 | 2014-05-14 | Highly-weldable high-efficiency photovoltaic welding tape |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105006492A (en) * | 2015-07-24 | 2015-10-28 | 苏州宇邦新型材料股份有限公司 | Segmented serrated solder strip and photovoltaic module and preparation method thereof |
| WO2015172457A1 (en) * | 2014-05-14 | 2015-11-19 | 凡登（江苏）新型材料有限公司 | Highly-weldable high-efficiency photovoltaic welding strip |
| WO2016049980A1 (en) * | 2014-09-29 | 2016-04-07 | 凡登（江苏）新型材料有限公司 | High-efficiency heterogeneous photovoltaic welding strip, and preparation method and production line for conductive baseband |
| CN106257691A (en) * | 2015-06-19 | 2016-12-28 | 江苏太阳光伏科技有限公司 | A kind of solar energy welding that can strengthen conversion efficiency |
-
2014
- 2014-05-14 CN CN201420246921.1U patent/CN203839390U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015172457A1 (en) * | 2014-05-14 | 2015-11-19 | 凡登（江苏）新型材料有限公司 | Highly-weldable high-efficiency photovoltaic welding strip |
| WO2016049980A1 (en) * | 2014-09-29 | 2016-04-07 | 凡登（江苏）新型材料有限公司 | High-efficiency heterogeneous photovoltaic welding strip, and preparation method and production line for conductive baseband |
| CN106257691A (en) * | 2015-06-19 | 2016-12-28 | 江苏太阳光伏科技有限公司 | A kind of solar energy welding that can strengthen conversion efficiency |
| CN105006492A (en) * | 2015-07-24 | 2015-10-28 | 苏州宇邦新型材料股份有限公司 | Segmented serrated solder strip and photovoltaic module and preparation method thereof |
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