CN202948940U - Positive electrode structure of crystalline silicon solar cells - Google Patents
Positive electrode structure of crystalline silicon solar cells Download PDFInfo
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- CN202948940U CN202948940U CN 201220613759 CN201220613759U CN202948940U CN 202948940 U CN202948940 U CN 202948940U CN 201220613759 CN201220613759 CN 201220613759 CN 201220613759 U CN201220613759 U CN 201220613759U CN 202948940 U CN202948940 U CN 202948940U
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- main grid
- electrode structure
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Abstract
The utility model relates to the technical field of solar cells, in particular to a positive electrode structure of crystalline silicon solar cells. The positive electrode structure comprises a plurality of main grid lines (4) and a plurality of auxiliary grid lines (5) vertical to the main grid lines (4), and each main grid line (4) comprises a rectangular main grid line body (6) and two leads (7) used for leading current on the auxiliary grid lines in the rectangular main grid line body (6) and respectively connected onto two ends of the rectangular main grid line body (6). By means of the structure, the solar cells are low in production cost and high in cell efficiency.
Description
Technical field:
The utility model relates to technical field of solar batteries, relates in particular to a kind of crystal silicon solar energy battery electrode structure at right side.
Background technology:
The positive silver electrode of crystal-silicon solar cell comprises main grid line and secondary grid line, the effect of secondary grid line is to collect photogenerated current, the main grid line has two effects, an effect is the electric current on collecting secondary grid line, another effect is when making assembly and welding is welded together to form alloy, current delivery is gone out, for the fastness that guarantees to weld, the main grid line must be done widelyr, is generally 1.5-2mm.
As shown in Figure 1, the main grid line 1 of conventional batteries front electrode is rectangular configuration, and in the time of welding, welding 3 covers on main grid line 1.The position of keeping to the side due to welding easily causes cell piece cracked, so welding does not cover the main grid line fully usually, but begins welding from battery the 3rd secondary grid line on one side, to the 3rd secondary grid line end of another side.By welding, welding and main grid line mid portion form alloy, have guaranteed the transmission of electric current.Can find out from traditional technical process, after welding, one end of battery front side electrode main grid line is exposed, although the other end is covered by welding, does not form alloy with welding, like this, main grid line two ends all do not have to form alloy with welding, cause the waste of silver slurry, the rising of production cost, an end that exposes has simultaneously reduced the light-receiving area of battery, causes the loss of battery efficiency.
Summary of the invention:
Technical problem to be solved in the utility model is: the crystal silicon solar energy battery that a kind of production cost is low and battery efficiency is high electrode structure at right side is provided.
the technical scheme that the utility model adopts is: a kind of crystal silicon solar energy battery electrode structure at right side, comprise some main grid lines and with the some many secondary grid lines that the main grid line is vertical, two wires that are used for the electric current on secondary grid line is imported main grid line body that described main grid line comprises a rectangle main grid line body and is connected to main grid line body two ends, one end intersection of described main grid line body left side and a wire wherein is between the zone of battery front side left side article one pair grid line and the 5th secondary grid line, the other end of a described wherein wire is connected with the secondary grid line of battery front side left side article one, and an end intersection of described main grid line body right side and another root wire is between the battery front side secondary grid line of right side article one and the 5th secondary grid line, the other end of described another wire is connected with the secondary grid line of battery front side right side article one.
Article two, wire can be respectively be connected with the mid point at described main grid line body two ends.
The width of described main grid line body is 1-2mm.
Article two, the width of wire is 0.1-0.3mm.
One end intersection of described main grid line body left side and a wire wherein is positioned on the secondary grid line in the 3rd, left side of battery front side, and an end intersection of described main grid line body right side and another wire is positioned on the secondary grid line in the 3rd, right side of battery front side.
The width of described main grid line body is 1.6mm.
Article two, the width of wire is 0.16mm.
adopt above structure compared with prior art, the utlity model has following advantage: change the rectangular configuration of prior art main grid line into structure that rectangle two ends become two wires, the main grid line rectangular configuration two ends area that is about to prior art has diminished, so not only saved the consumption of silver-colored slurry, reduced production cost, and because conductor part does not form alloy with welding originally, so do not affect the transmission of electric current, and compared with prior art, main grid line two ends adopt wire to reduce electrode area, make battery can more absorb solar energy, and then improved the efficient of battery.
Description of drawings:
Fig. 1 is the structural representation of a kind of crystal silicon solar energy battery electrode structure at right side of prior art.
Fig. 2 is the structural representation of a kind of crystal silicon solar energy battery electrode structure at right side of the utility model.
Fig. 3 is the enlarged diagram at A place in Fig. 2.
Fig. 4 is the structural representation of the main grid line in a kind of crystal silicon solar energy battery electrode structure at right side of the utility model.
As shown in the figure: 1, the main grid line on the prior art electrode; 2, the secondary grid line on the prior art electrode; 3, welding; 4, the main grid line on the utility model electrode; 5, the secondary grid line on the utility model electrode; 6, main grid line body; 7, wire.
Embodiment:
Below in conjunction with accompanying drawing and embodiment, the utility model is described further, but the utility model is not limited only to following embodiment.
as shown in the figure: a kind of crystal silicon solar energy battery electrode structure at right side, comprise some main grid lines 4 and with the some many secondary grid lines 5 that main grid line 4 is vertical, two wires 7 that are used for the electric current on secondary grid line 5 is imported main grid line body 6 that described main grid line 4 comprises a rectangle main grid line body 6 and is connected to main grid line body 6 two ends, described main grid line body 6 left sides and wherein an end intersection of a wire 7 between the zone of the battery front side secondary grid line 5 of left side article one and the 5th secondary grid line 5, the other end of a described wherein wire 7 is connected with the secondary grid line 5 of battery front side left side article one, and an end intersection of described main grid line body 6 right sides and another root wire 7 is between the battery front side secondary grid line 5 of right side article one and the 5th secondary grid line 5, the other end of described another wire 7 is connected with the secondary grid line 5 of battery front side right side article one.The described main grid line 4 of this specific embodiment is two.See in figure that main grid line 4 is frameworks, but in fact all be coated with in main grid line 4 frameworks full, namely whole one to be all that the silver slurry is coated with full, just clear in order to show in figure.Described wire 7 is very thin silver slurry lines, has compared carefully much with original main grid line two ends.
Described two wires 7 can be respectively be connected with the mid point at described main grid line body 6 two ends.
One end intersection of described main grid line body 6 left sides and a wire 7 wherein is positioned on the secondary grid line 5 in the 3rd, left side of battery front side, and an end intersection of described main grid line body 6 right sides and another wire 7 is positioned on the secondary grid line 5 in the 3rd, right side of battery front side.
The width of described main grid line body 6 is 1.6mm.
The width of described two wires 7 is 0.16mm.
Claims (7)
1. crystal silicon solar energy battery electrode structure at right side, comprise some main grid lines (4) and the many piece secondary grid lines (5) vertical with some main grid lines (4), it is characterized in that: two wires (7) that are used for the electric current on secondary grid line (5) is imported main grid line body (6) that described main grid line (4) comprises a rectangle main grid line body (6) and is connected to main grid line body (6) two ends, one end intersection of described main grid line body (6) left side and a wire (7) wherein is positioned between the zone of battery front side left side article one pair grid line (5) and the 5th secondary grid line (5), the other end of a described wherein wire (7) is connected with the battery front side left side secondary grid line of article one (5), and an end intersection of described main grid line body (6) right side and another root wire (7) is positioned between the battery front side secondary grid line (5) of right side article one and the 5th secondary grid line (5), the other end of described another wire (7) is connected with the battery front side right side secondary grid line of article one (5).
2. a kind of crystal silicon solar energy battery electrode structure at right side according to claim 1 is characterized in that: two wires (7) can be respectively be connected with the mid point at described main grid line body (6) two ends.
3. a kind of crystal silicon solar energy battery electrode structure at right side according to claim 1, it is characterized in that: the width of described main grid line body (6) is 1-2mm.
4. a kind of crystal silicon solar energy battery electrode structure at right side according to claim 1, it is characterized in that: the width of two wires (7) is 0.1-0.3mm.
5. a kind of crystal silicon solar energy battery electrode structure at right side according to claim 1, it is characterized in that: an end intersection of described main grid line body (6) left side and a wire (7) wherein is positioned on battery front side the 3rd the secondary grid line in left side (5), and an end intersection of described main grid line body (6) right side and another wire (7) is positioned on battery front side the 3rd the secondary grid line in right side (5).
6. a kind of crystal silicon solar energy battery electrode structure at right side according to claim 3, it is characterized in that: the width of described main grid line body (6) is 1.6mm.
7. a kind of crystal silicon solar energy battery electrode structure at right side according to claim 4, it is characterized in that: the width of two wires (7) is 0.16mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220613759 CN202948940U (en) | 2012-11-20 | 2012-11-20 | Positive electrode structure of crystalline silicon solar cells |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220613759 CN202948940U (en) | 2012-11-20 | 2012-11-20 | Positive electrode structure of crystalline silicon solar cells |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202948940U true CN202948940U (en) | 2013-05-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220613759 Expired - Lifetime CN202948940U (en) | 2012-11-20 | 2012-11-20 | Positive electrode structure of crystalline silicon solar cells |
Country Status (1)
| Country | Link |
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| CN (1) | CN202948940U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3198655A4 (en) * | 2014-10-31 | 2017-11-22 | BYD Company Limited | Solar cell array, solar cell module and manufacturing method thereof |
-
2012
- 2012-11-20 CN CN 201220613759 patent/CN202948940U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3198655A4 (en) * | 2014-10-31 | 2017-11-22 | BYD Company Limited | Solar cell array, solar cell module and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No. 181-197, Shanshan Road, Wangchun Industrial Park, Haishu District, Ningbo City, Zhejiang Province, 315177 Patentee after: Ningbo Eureka solar energy Co.,Ltd. Address before: 315177 Zhejiang city of Ningbo province Yinzhou District Wang Shanshan Lu Chun Industrial Park No. 181 Patentee before: NINGBO ULICA SOLAR TECHNOLOGY DEVELOPMENT Co.,Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130522 |