CN202871833U - Low-voltage high-current thin-film solar cell module - Google Patents
Low-voltage high-current thin-film solar cell module Download PDFInfo
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- CN202871833U CN202871833U CN2012203029953U CN201220302995U CN202871833U CN 202871833 U CN202871833 U CN 202871833U CN 2012203029953 U CN2012203029953 U CN 2012203029953U CN 201220302995 U CN201220302995 U CN 201220302995U CN 202871833 U CN202871833 U CN 202871833U
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- wire
- assembly
- solar cell
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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 low-voltage high-current thin-film solar cell module. The thin-film cell module is first divided into four equal parts through laser scribing, wherein the two adjacent equal parts are in mirror symmetry with respect to each other, and the two adjacent equal parts share an anode, but has different cathodes. Then, the four parts divided by laser scribing are connected in parallel through copper lead wires. The anode is converged to an anode wiring terminal through anode lead wires, while the cathodes are converged to a cathode wiring terminal through cathode lead wires. In the design of the low-voltage assembly in which the laser scribing cooperates with the external lead wire connection, the method of sharing the anode is adopted to better utilize the effective power-generating area of the thin-film assembly and to increase the photoelectric conversion efficiency of the assembly; and the cathodes take part in the power generation so that whether the cathodes are shared or not does not influence the effective power-generating area of the assembly, but separating the cathodes is more beneficial for the collection of current, thereby having the effects of improving fill factors of the assembly and increasing the photoelectric conversion efficiency.
Description
Technical field
The utility model relates to a kind of Thinfilm solar cell assembly, especially a kind of Thinfilm solar cell assembly of low voltage and high current.
Background technology
The thin film solar assembly is realized Embedded by the mode of laser scribing usually.As described in practicality novel [CN202025782U], the cascaded structure of battery and battery, usually realize by three road laser: first laser is divided into front electrodes conduct layer the unit of some mutually insulateds; Second laser etches raceway groove at absorbed layer, and in back electrode conductive layer deposition process, back electrode high conductivity material is inserted in this raceway groove, forms conductive path with front electrode contact; The 3rd road laser forms the insulation between each sub-battery by scratching back electrode and absorbed layer.The thin film solar assembly is exported for optimizing power, usually all component clustering is become dozens or even hundreds of sub-battery, and is undertaken connecting in the sheet by above-mentioned laser scribing mode.
According to above-mentioned traditional connected mode, the output voltage of thin film solar assembly is tens or hundreds of times of single sub-battery normally, and voltage range is from 80V even up to more than the 200V, and electric current is usually less, only has the size of current of a sub-battery.Such structure is unfavorable for the application of thin film solar assembly.At the application of off-grid system, very large assembly operating voltage needs a large amount of storage batterys with it cooperating of connecting, and has increased the cost of off-grid system.And at the application of grid-connected system, very large assembly operating voltage has been subdued the component count that each group string can drive, the cost that has increased cable and confluxed.Therefore, from application, must reduce the operating voltage of film assembly.
Summary of the invention
Goal of the invention: for the deficiency of high-voltage thin-film solar components at application, we have designed a kind of reduction component voltage, and the constant modular construction of guarantor unit's area power output.
Technical scheme: in order to realize the foregoing invention purpose, the technical scheme that the utility model adopts is: a kind of Thinfilm solar cell assembly of low voltage and high current, comprise terminal box, positive wire and negative wire. at first with laser scribing described film battery assembly is divided into the quartering, two adjacent five equilibriums wherein, mirror image is symmetrical, anodal sharing, negative pole does not share.Then by the mode of copper lead-in wire, that four parts that laser scribing is told are in parallel, the anodal positive wire that uses is flowed to positive terminal, and negative pole uses negative wire to conflux into negative terminals.Conflux before the wiring carrying out above-mentioned both positive and negative polarity, at lead-in wire and terminal box position arranged beneath insulating tape, prevent the both positive and negative polarity short circuit.
Again then, use conductive silver paste bonding junction between the lead-in wire, and in the thermal process of follow-up lamination, be cured.Described positive wire and negative wire pass back board packaging material, are drawn out in the terminal box that is installed on the assembly backboard.
Beneficial effect: the utility model compared with prior art, its beneficial effect is: 1, in the low-voltage assembly design of laser scribing and the interconnected cooperation of outside lead, the mode that adopts positive electrode to share, utilize better effective generating area of film assembly, improved the electricity conversion of assembly; 2, whether no matter negative pole share as a part that participates in generating, and the not impact of effective generating area on assembly still separately more is conducive to negative pole the collection of electric current, and can play and improve the assembly fill factor, curve factor, thus the effect that improves electricity conversion; 3, from the angle of laser scribing, all negative poles are all separate, just it connected the problem that this has been avoided the shared fill factor, curve factor that produces of negative pole to descend in follow-up lead-in wire technique with parallel way.
Description of drawings
Accompanying drawing 1 is the utility model quartering assembly floor plan schematic diagram.
Accompanying drawing 2 is for sharing the sectional view of positive pole zone hull cell device.
Embodiment
Below in conjunction with accompanying drawing, by a most preferred embodiment, technical solutions of the utility model are elaborated, but protection range of the present utility model is not limited to described embodiment.
As shown in Figure 1, this is the utility model quartering assembly floor plan schematic diagram, comprise terminal box 1, positive wire 2 and negative wire 3, what wherein solid line represented is positive electrode lead-in wire 2, and what dotted line represented is negative electrode lead-in wire 3, with laser scribing described film battery assembly is divided into the quartering, two adjacent five equilibriums wherein, mirror image is symmetrical, anodal sharing, and negative pole does not share.By the mode of copper lead-in wire, four parts that laser scribing is told are in parallel, and the anodal positive wire 2 that uses is flowed to positive terminal, and negative pole uses negative wire 3 to conflux into negative terminals, thick some expression tie point among the figure.Before described both positive and negative polarity confluxes wiring, at each lead-in wire and terminal box 1 position arranged beneath insulating tape.Junction between the lead-in wire uses conductive silver paste bonding, namely shown in the thick point among the figure, and is cured in the thermal process of follow-up lamination.
After both positive and negative polarity confluxed, described positive wire 2 and negative wire 3 passed back board packaging material, were drawn out in the terminal box 1 that is installed on the assembly backboard.
Fig. 2 is for sharing the sectional view of positive pole zone hull cell device, and wherein the 1st layer is substrate of glass, is used for the substrate as plated film, usually is referred to as header board, because this layer is the 1st layer of the whole solar components of solar light irradiation; The 2nd layer is front electrode, usually adopts transparent conductive oxide, takes into account printing opacity and conduction double action; The 3rd layer is light absorbing zone, and (can be the Si film, also can be CdTe or CIGS film, and the 4th layer is back electrode, can be metal or other high conductivity materials, plays the effect that conduction and part light reflect to play the effect of photoelectric conversion.Laser scribing P1 is used for front electrodes conduct layer is divided into the unit of some mutually insulateds; Laser scribing P2 is used for etching raceway groove at absorbed layer, and battery is to contact with front electrode high conductivity material by the high conductivity material of inserting the P2 raceway groove to realize with the series connection of battery; Laser scribing P3 is used for each sub-battery of electrical insulation; In the anodal both sides that share, laser scribing order (P1, the relative position of P2 and P3) is made the mirror image symmetry.
Claims (5)
1. the Thinfilm solar cell assembly of a low voltage and high current, comprise terminal box (1), positive wire (2) and negative wire (3), it is characterized in that: with laser scribing described film battery assembly is divided into the quartering, two adjacent five equilibriums wherein, mirror image is symmetrical, anodal sharing, negative pole does not share.
2. the Thinfilm solar cell assembly of a kind of low voltage and high current according to claim 1, it is characterized in that: by the mode of copper lead-in wire, four parts that laser scribing is told are in parallel, the anodal positive wire (2) that uses is flowed to positive terminal, and negative pole uses negative wire (3) to conflux into negative terminals.
3. the Thinfilm solar cell assembly of a kind of low voltage and high current according to claim 1 is characterized in that: before described both positive and negative polarity confluxes wiring, at lead-in wire and terminal box (1) position arranged beneath insulating tape.
4. the Thinfilm solar cell assembly of a kind of low voltage and high current according to claim 1 is characterized in that: the junction between the lead-in wire uses conductive silver paste bonding, and is cured in the thermal process of follow-up lamination.
5. according to claim 1 or the Thinfilm solar cell assembly of a kind of low voltage and high current claimed in claim 2, it is characterized in that: after both positive and negative polarity confluxes, described positive wire (2) and negative wire (3) pass back board packaging material, are drawn out in the terminal box (1) that is installed on the assembly backboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203029953U CN202871833U (en) | 2012-06-27 | 2012-06-27 | Low-voltage high-current thin-film solar cell module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203029953U CN202871833U (en) | 2012-06-27 | 2012-06-27 | Low-voltage high-current thin-film solar cell module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202871833U true CN202871833U (en) | 2013-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012203029953U Expired - Fee Related CN202871833U (en) | 2012-06-27 | 2012-06-27 | Low-voltage high-current thin-film solar cell module |
Country Status (1)
| Country | Link |
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| CN (1) | CN202871833U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109273545A (en) * | 2018-11-01 | 2019-01-25 | 成都中建材光电材料有限公司 | A kind of production method of cadmium telluride diaphragm solar battery component |
-
2012
- 2012-06-27 CN CN2012203029953U patent/CN202871833U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109273545A (en) * | 2018-11-01 | 2019-01-25 | 成都中建材光电材料有限公司 | A kind of production method of cadmium telluride diaphragm solar battery component |
| CN109273545B (en) * | 2018-11-01 | 2020-10-16 | 成都中建材光电材料有限公司 | Manufacturing method of cadmium telluride thin-film solar cell 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: 20130410 Termination date: 20160627 |