CN203659898U - Micro-condensation photovoltaic welding strip - Google Patents
Micro-condensation photovoltaic welding strip Download PDFInfo
- Publication number
- CN203659898U CN203659898U CN201420017348.7U CN201420017348U CN203659898U CN 203659898 U CN203659898 U CN 203659898U CN 201420017348 U CN201420017348 U CN 201420017348U CN 203659898 U CN203659898 U CN 203659898U
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- Prior art keywords
- micro
- photovoltaic welding
- condensation photovoltaic
- welding
- coating
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- Expired - Lifetime
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- 238000003466 welding Methods 0.000 title claims abstract description 54
- 238000009833 condensation Methods 0.000 title claims abstract description 21
- 239000000956 alloy Substances 0.000 claims abstract description 18
- 229910052751 metal Inorganic materials 0.000 claims abstract description 11
- 239000007769 metal material Substances 0.000 claims abstract description 8
- 238000002310 reflectometry Methods 0.000 claims abstract description 4
- 239000011248 coating agent Substances 0.000 claims description 23
- 238000000576 coating method Methods 0.000 claims description 23
- 229910045601 alloy Inorganic materials 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 10
- 229910001074 Lay pewter Inorganic materials 0.000 claims description 6
- 239000004411 aluminium Substances 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 238000007373 indentation Methods 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 238000007747 plating Methods 0.000 abstract description 22
- 238000005516 engineering process Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000002844 melting Methods 0.000 abstract description 4
- 230000008018 melting Effects 0.000 abstract description 4
- 238000004026 adhesive bonding Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 13
- 238000005507 spraying Methods 0.000 description 9
- 238000003825 pressing Methods 0.000 description 8
- 238000005554 pickling Methods 0.000 description 6
- 238000000137 annealing Methods 0.000 description 5
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 description 4
- 238000005238 degreasing Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 239000011265 semifinished product Substances 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005518 electrochemistry Effects 0.000 description 2
- 238000009713 electroplating Methods 0.000 description 2
- 238000004049 embossing Methods 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000012876 topography Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Images
Classifications
-
- 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 micro-condensation photovoltaic welding strip which comprises a baseband provided with a light receiving surface, a back surface and side surfaces. The light receiving surface is sawtooth-shaped, a reflective plating layer is arranged on the light receiving surface, and the reflective plating layer is made of metal or alloy material of which the thickness ranges from 500nm to 5 microns, the reflectivity under irradiation of light waves within the wavelength range from 300nm to 1200nm is above 65%, and the melting point is above 232 DEG C. The back surface and the side surfaces are respectively provided with a plating layer, and the plating layers are made of metal or alloy material of which the thickness is 10-25 microns and the melting point is below 232 DEG C. The dependence of the micro-condensation photovoltaic welding strip of the utility model on a conductive adhesive bonding technology can be reduced, the manufacturing cost can be reduced, the micro-condensation effect can be improved, and the power of an assembly can be improved.
Description
Technical field
The utility model relates to a kind of micro-condensation photovoltaic welding, belongs to photovoltaic welding belt technical field.
Background technology
At present, photovoltaic welding belt is the crucial auxiliary material that solar cell is connected to bunchiness, and solar cell forms a complete electric path after connecting by welding, and luminous energy is converted into electric energy by solar cell, the electric current producing forms transmission circuit by welding, for utilizing solar energy that path basis is provided.Common welding is comparatively smooth through welding rear surface, and the light that enters assembly incides smooth welding surface, is gone out and cannot be utilized by mirror-reflection; There are at present some special special-shaped weldings, the upper surface of welding is processed into certain reflective groove structure, the angle of surface reflection groove is 110 °～130 °, welding all outer surfaces all has Ag coating, when light incides the reflection of groove structure through certain angle groove structure, arrive cell piece surface through the secondary reflection of glass, air interface again, again utilized, thereby improve the utilance of incident light, the current assembly processing procedure of this welding need to combine with low-temperature adhesion equipment, and low-temperature adhesion equipment adopts conductive tape bonding way; The forming temperature of conductive tape is lower than the fusing point of welding surface high reflecting metal coating, thereby guarantee to keep initial pattern after welding, reach best micro-spotlight effect, front welding is bonded in the surface of thin grid line by low-temperature conductive adhesive tape, and back side welding is bonded in the surface of back electrode by conducting resinl, this structure has good bonding stability, but because the relatively common automatic welding machine of equipment cost of soldered technology increases more than 100%, and need to consider to add the conductive tape material cost of the low resistance conducting particless such as Ag, therefore restricted the application of this technology.
Summary of the invention
Technical problem to be solved in the utility model is the defect that overcomes prior art, a kind of micro-condensation photovoltaic welding is provided, and it not only can reduce the dependence of welding to conductive adhesive technique, reduces manufacturing cost, and can improve micro-spotlight effect, improve the power of assembly.
In order to solve the problems of the technologies described above, the technical solution of the utility model is: a kind of micro-condensation photovoltaic welding, it comprises base band, base band has sensitive surface, the back side and side, and sensitive surface indentation structure, it is characterized in that: on described sensitive surface, be provided with reflected coat layer, and this reflected coat layer is 500nm～5 μ m by thickness, under light-wave irradiation in 300nm～1200nm wave-length coverage, reflectivity is more than 65%, the metal or alloy material of fusing point more than 232 ℃ made, on the described back side and side, be provided with coating, and this coating is 10 μ m～25 μ m by thickness, fusing point is made lower than the metal or alloy material of 232 ℃.
Further, described base band is made up of copper material.
Further, the fleam α of the sensitive surface of described laciniation is 110 °～130 °, and the width H between sawtooth is 120 μ m～200 μ m.
Further, described reflected coat layer is made up of silver-colored material or aluminium.
Further, described coating is made up of leypewter or argentalium alloy.
A preparation technology for micro-condensation photovoltaic welding, the step of this technique is as follows:
A) by embossing device, base band is carried out to preliminary treatment, make indentation structure on its positive sensitive surface;
B) enter annealing device and carry out annealing in process, form semi-finished product;
C) semi-finished product are carried out to electrochemistry pre-process: carry out successively oil removing, degreasing and pickling;
D) then it is carried out to anti-displacement processing, make its surface form anti-displacement diaphragm;
E) the positive reflected coat layer of pressing plate spraying plating choosing plating: spraying plating reflected coat layer on the sensitive surface of base band, and adopt pressing plate protection in the non-plating reflected coat layer region in front;
F) brush plating layer on the back side of base band and side;
G) then wash successively, dry up, oven dry and rolling, obtain this micro-condensation photovoltaic welding.
Further, between described step e) and step f), also comprising step h): pressing plate spraying plating choosing plating front coating: spraying plating coating on the non-sensitive surface in base band front, and carry out pressing plate protection in the non-coated coating region in front.
Further, described reflected coat layer is by being made up of silver-colored material or aluminium, and described coating is made up of leypewter or argentalium alloy.
Further, between degreasing and pickling, between pickling and step d), between step d) and step e), step e) and step h) between, step h) and between step f), be provided with washing process.
Adopt after technique scheme, this welding and solar cell are after welding, because welding temperature is controlled at above 50 ℃～100 ℃ left and right of fusing point of low-melting-point metal or alloy layer, therefore the high reflectance high-melting-point reflected coat layer of sensitive surface still keeps original surface topography, and the coating generation remelting of low melting point, melt through mutual with the electrode of solar cell, on interface, form alloy, guarantee good ohmic contact, this structure reaches best micro-spotlight effect after encapsulation, improve the power of assembly, reduce the dependence of welding to conductive adhesive technique, reduce manufacturing cost.
Accompanying drawing explanation
Fig. 1 is the welding schematic diagram of micro-condensation photovoltaic welding of the present utility model;
Fig. 2 is the schematic diagram of the photovoltaic welding belt prepared of the preparation technology of micro-condensation photovoltaic welding of the present utility model;
Fig. 3 is the preparation technology's of micro-condensation photovoltaic welding of the present utility model flow chart;
Wherein, 6 in Fig. 1 is battery surface electrode.
Embodiment
For content of the present utility model is more easily expressly understood, according to specific embodiment also by reference to the accompanying drawings, the utility model is described in further detail below.
As shown in Figure 1, a kind of micro-condensation photovoltaic welding, it comprises base band 1, base band 1 has sensitive surface, the back side and side, and sensitive surface indentation structure, on sensitive surface, be provided with reflected coat layer 2, and this reflected coat layer 2 is 500nm～5 μ m by thickness, under light-wave irradiation in 300nm～1200nm wave-length coverage, reflectivity is more than 65%, the metal or alloy material of fusing point more than 232 ℃ made, on the described back side and side, be provided with coating 3, and this coating 3 is 10 μ m～25 μ m by thickness, fusing point is made lower than the metal or alloy material of 232 ℃.The back side and side are flat surface.
Base band 1 is made up of copper material.
The fleam α of the sensitive surface of laciniation is 110 °～130 °, and the width H between sawtooth is 120 μ m～200 μ m.
Reflected coat layer 2 is made up of silver-colored material or aluminium.
As shown in Figure 3, a kind of preparation technology of micro-condensation photovoltaic welding, the step of this technique is as follows:
A) by embossing device, base band 1 is carried out to preliminary treatment, make indentation structure on its positive sensitive surface;
B) enter annealing device and carry out annealing in process formation semi-finished product, acting as of annealing in process reduces its yield strength reduction welding stress, increases the long durability of assembly in cold cycling process;
C) semi-finished product are carried out to electrochemistry pre-process: carry out successively oil removing, degreasing and pickling;
D) then it is carried out to anti-displacement processing, make its surface form anti-displacement diaphragm;
E) the positive reflected coat layer 2 of pressing plate spraying plating choosing plating: spraying plating reflected coat layer 2 on the sensitive surface of base band 1, and adopt pressing plate protection in the non-plating reflected coat layer region in front, thereby accurately guarantee the electroplating quality of reflected coat layer, form the positive photovoltaic welding belt that is welded on solar cell 4;
F) brush plating layer 3 on the back side of base band 1 and side, this is plating continuously;
G) then wash successively, dry up, oven dry and rolling, obtain this micro-condensation photovoltaic welding.
Between described step e) and step f), also comprising step h): pressing plate spraying plating choosing plating front coating 3: spraying plating coating 3 on the non-sensitive surface in base band front, and carry out pressing plate protection in the non-coated coating region in front, thereby accurately guarantee the electroplating quality of this coating; On former basis in steps, increase this step, can form the positive photovoltaic welding belt that is welded on solar cell 4, also can form the photovoltaic welding belt at the back side that is welded on solar cell 4, the face of this spraying plating coating is the upper surface 5 that is welded on the photovoltaic welding belt at solar cell 4 back sides, this surface is also flat surface, as shown in Figure 2.
Reflected coat layer 2 is by being made up of silver-colored material or aluminium, and coating 3 is made up of leypewter or argentalium alloy.
Between degreasing and pickling, between pickling and step d), between step d) and step e), step e) and step h) between, step h) and between step f), be provided with washing process.
Operation principle of the present utility model is as follows:
This welding and solar cell are after welding, because welding temperature is controlled at above 50 ℃～100 ℃ left and right of fusing point of low-melting-point metal or alloy layer, therefore the high reflectance high-melting-point reflected coat layer of sensitive surface still keeps original surface topography, and the coating generation remelting of low melting point, melt through mutual with the electrode of solar cell, on interface, form alloy, guarantee good ohmic contact, the welding of this structure need to not use expensive low-temperature conductive adhesive bonding technology between welding and battery surface electrode 6, this structure reaches best micro-spotlight effect after encapsulation, improve the power of assembly, reduce the dependence of welding to conductive adhesive technique, reduce manufacturing cost.
Above-described specific embodiment; technical problem, technical scheme and beneficial effect that the utility model is solved further describe; institute is understood that; the foregoing is only specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any modification of making, be equal to replacement, improvement etc., within all should being included in protection range of the present utility model.
Claims (5)
1. a micro-condensation photovoltaic welding, it comprises base band (1), base band (1) has sensitive surface, the back side and side, and sensitive surface indentation structure, it is characterized in that: on described sensitive surface, be provided with reflected coat layer (2), and this reflected coat layer (2) is 500nm ~ 5 μ m by thickness, under light-wave irradiation in 300nm ~ 1200nm wave-length coverage, reflectivity is more than 65%, the metal or alloy material of fusing point more than 232 ℃ made, on the described back side and side, be provided with coating (3), and this coating (3) is 10 μ m ~ 25 μ m by thickness, fusing point is made lower than the metal or alloy material of 232 ℃.
2. micro-condensation photovoltaic welding according to claim 1, is characterized in that: described base band (1) is made up of copper material.
3. micro-condensation photovoltaic welding according to claim 1 and 2, is characterized in that: the fleam α of the sensitive surface of described laciniation is 110 ° ~ 130 °, and the width H between sawtooth is 120 μ m ~ 200 μ m.
4. micro-condensation photovoltaic welding according to claim 1, is characterized in that: described reflected coat layer (2) is made up of silver-colored material or aluminium.
5. micro-condensation photovoltaic welding according to claim 1, is characterized in that: described coating (3) is made up of leypewter or argentalium alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420017348.7U CN203659898U (en) | 2014-01-10 | 2014-01-10 | Micro-condensation photovoltaic welding strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420017348.7U CN203659898U (en) | 2014-01-10 | 2014-01-10 | Micro-condensation photovoltaic welding strip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203659898U true CN203659898U (en) | 2014-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420017348.7U Expired - Lifetime CN203659898U (en) | 2014-01-10 | 2014-01-10 | Micro-condensation photovoltaic welding strip |
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| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106711265A (en) * | 2016-12-16 | 2017-05-24 | 中利腾晖光伏科技有限公司 | Photovoltaic tabbing ribbon |
| CN108493282A (en) * | 2018-06-15 | 2018-09-04 | 浙江晶科能源有限公司 | A kind of segmentation optically focused welding applied to photovoltaic module |
| CN112701180A (en) * | 2020-12-30 | 2021-04-23 | 晶澳（扬州）太阳能科技有限公司 | Triangular welding strip and manufacturing method thereof |
-
2014
- 2014-01-10 CN CN201420017348.7U patent/CN203659898U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106711265A (en) * | 2016-12-16 | 2017-05-24 | 中利腾晖光伏科技有限公司 | Photovoltaic tabbing ribbon |
| CN108493282A (en) * | 2018-06-15 | 2018-09-04 | 浙江晶科能源有限公司 | A kind of segmentation optically focused welding applied to photovoltaic module |
| CN112701180A (en) * | 2020-12-30 | 2021-04-23 | 晶澳（扬州）太阳能科技有限公司 | Triangular welding strip and manufacturing method thereof |
| CN112701180B (en) * | 2020-12-30 | 2022-07-29 | 晶澳(扬州)新能源有限公司 | Triangular welding strip and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHANGZHOU TRINA PV RIBBON MATERIAL CO., LTD. Effective date: 20150514 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150514 Address after: Tianhe Electronic Industrial Park Road 213022 north of Jiangsu Province, Changzhou City, No. 2 Patentee after: CHANGZHOU TRINA SOLAR ENERGY Co.,Ltd. Patentee after: CHANGZHOU TIANHE PHOTOVOLTAIC WELDING STRIP MATERIAL CO.,LTD. Address before: Tianhe Electronic Industrial Park Road 213022 north of Jiangsu Province, Changzhou City, No. 2 Patentee before: CHANGZHOU TRINA SOLAR ENERGY Co.,Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: CHANGZHOU TRINA PV RIBBON MATERIAL CO., LTD. Free format text: FORMER OWNER: TIANHE OPTICAL ENERGY CO., LTD., CHANGZHOU Effective date: 20150906 Free format text: FORMER OWNER: CHANGZHOU TRINA PV RIBBON MATERIAL CO., LTD. Effective date: 20150906 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150906 Address after: 213022 Jiangsu city of Changzhou province Xinbei Longhu Street Innovation Road No. 1-5 (Electronic Industrial Park) Patentee after: CHANGZHOU TIANHE PHOTOVOLTAIC WELDING STRIP MATERIAL CO.,LTD. Address before: Tianhe Electronic Industrial Park Road 213022 north of Jiangsu Province, Changzhou City, No. 2 Patentee before: CHANGZHOU TRINA SOLAR ENERGY Co.,Ltd. Patentee before: CHANGZHOU TIANHE PHOTOVOLTAIC WELDING STRIP MATERIAL CO.,LTD. |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160406 Address after: 213022, No. 2, Tianhe Road, Tianhe photovoltaic industrial park, Xinbei District, Jiangsu, Changzhou Patentee after: CHANGZHOU TRINA SOLAR ENERGY Co.,Ltd. Patentee after: CHANGZHOU HESAI NEW MATERIAL TECHNOLOGY CO.,LTD. Address before: 213022 Jiangsu city of Changzhou province Xinbei Longhu Street Innovation Road No. 1-5 (Electronic Industrial Park) Patentee before: CHANGZHOU TIANHE PHOTOVOLTAIC WELDING STRIP MATERIAL CO.,LTD. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170821 Address after: Tianhe Electronic Industrial Park Road 213022 north of Jiangsu Province, Changzhou City, No. 2 Patentee after: CHANGZHOU TRINA SOLAR ENERGY Co.,Ltd. Address before: 213022, No. 2, Tianhe Road, Tianhe photovoltaic industrial park, Xinbei District, Jiangsu, Changzhou Co-patentee before: CHANGZHOU HESAI NEW MATERIAL TECHNOLOGY CO.,LTD. Patentee before: CHANGZHOU TRINA SOLAR ENERGY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Solar photovoltaic industry park Tianhe Road 213031 north of Jiangsu Province, Changzhou City, No. 2 Patentee after: TRINA SOLAR Co.,Ltd. Address before: Solar photovoltaic industry park Tianhe Road 213031 north of Jiangsu Province, Changzhou City, No. 2 Patentee before: trina solar Ltd. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Solar photovoltaic industry park Tianhe Road 213031 north of Jiangsu Province, Changzhou City, No. 2 Patentee after: trina solar Ltd. Address before: Tianhe Electronic Industrial Park Road 213022 north of Jiangsu Province, Changzhou City, No. 2 Patentee before: CHANGZHOU TRINA SOLAR ENERGY Co.,Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140618 |