CN203521437U - Front electrode structure of solar cell - Google Patents
Front electrode structure of solar cell Download PDFInfo
- Publication number
- CN203521437U CN203521437U CN201320645227.2U CN201320645227U CN203521437U CN 203521437 U CN203521437 U CN 203521437U CN 201320645227 U CN201320645227 U CN 201320645227U CN 203521437 U CN203521437 U CN 203521437U
- Authority
- CN
- China
- Prior art keywords
- grid line
- main grid
- solar cell
- electrode structure
- main
- Prior art date
- 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.)
- Expired - Lifetime
Links
- 239000000523 sample Substances 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 238000002788 crimping Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000002002 slurry Substances 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
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- Photovoltaic Devices (AREA)
Abstract
The utility model discloses a front electrode structure of a solar cell, and the structure comprises main grid lines, auxiliary grid lines, and connecting lines. The structure is characterized in that the main grid lines are in the shape of an integrated block; the main grid lines are distributed at a side of the cell in a concentrated manner; the main grid lines comprise a main-grid-line rectangular unit and a main-grid-line narrowing unit; and the auxiliary grid lines are connected with the main-grid-line narrowing unit through the connecting lines. According to the utility model, the grid line sheltering area of the solar cell is reduced, and the output power of a battery assembly is increased.
Description
Technical field
The utility model relates to a kind of solar cel electrode structure, is specifically related to a kind of solar cell electrode structure at right side.
Background technology
At present, the front electrode design of the crystal-silicon solar cell of suitability for industrialized production adopts H shape and structure always, be the front that two or three main grids are evenly distributed on crystal-silicon solar cell, on main grid, tandem has equidistant equally distributed thin grid line, the every electric current approximately equal that thin grid line is collected.In the test process of solar cell, 6 to 11 pairs of probes are crimped on main grid simultaneously.The electric current that near thin grid line is collected in probe crimping district on main grid converges, and by probe output, is tested.
In order to reduce crystal-silicon solar cell cost, reduce the shading-area of solar cell grid line, Chinese patent CN202076273U has proposed a kind of main grid structure of hollow out, this structure has retained the silver electrode in probe crimping district on main grid, this beneficial effect bringing is that main grid line area occupied significantly reduces, but main grid line has still caused no small shade to block.Chinese patent CN102254995A further reduces the consumption of silver slurry by design aperture on main grid, but battery is being made after assembly, battery main grid hollow out region is still blocked by welding, shading-area does not reduce in fact, so when considering to reduce the shielded area of solar cell main grid line, also will take into account the impact that follow-up establishment of component brings.In order to reduce the shading-area of solar cell main grid line, and compatible with follow-up solar module production process, need to carry out more optimal design to the front main grid structure of solar cell.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of solar cell electrode structure at right side, reduces the grid line shielded area of solar cell, increases the power output of battery component.
The technical scheme that the utility model technical solution problem adopts is: a kind of solar cell electrode structure at right side, comprise main grid line, secondary grid line and connecting line, it is characterized in that: described main grid line is integrated bulk, described main grid line is concentrated a side that is distributed in battery, described main grid line comprises that main grid line rectangular element and main grid line narrow unit, and described secondary grid line narrows unit by connecting line with main grid line and is connected.
As a kind of preferred, the radical of described main grid line is 3～7.
As a kind of preferred, it is taper, trapezoidal or semicircle that described main grid line narrows unit.
Preferably described main grid line rectangular element length is between 5～20mm as a kind of, and width is between 2～7mm, and it is between 1～5mm that described main grid line narrows element length, and when main grid line is when to narrow unit be trapezoidal, end width is between 0.2～2mm.
As a kind of preferred, described main grid line is provided with hollow out aperture, and described hollow out aperture is rectangle, circle, rhombus.
The beneficial effects of the utility model are: the eclipsing loss that has reduced main grid line, increased the short circuit current of solar cell, there is higher energy conversion efficiency, and main grid line is all designed to the side at battery, during welding, only need to weld from edge, reduce weld length, reduced shading loss, increased the power output of battery component.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment 1.
Fig. 2 is the positive electrode main grid structure enlarged drawing of the utility model embodiment 1.
Fig. 3 is the structural representation of the utility model embodiment 2.
Fig. 4 is the positive electrode main grid structure enlarged drawing of the utility model embodiment 2.
Below in conjunction with accompanying drawing, the utility model is described further.
Embodiment
Embodiment 1: as shown in accompanying drawing 1, Fig. 2, a kind of solar cell electrode structure at right side, comprise main grid line, secondary grid line and connecting line, described main grid line is integrated bulk, and concentrates a side that is distributed in battery, main grid line comprises main grid line rectangular element 1 and the trapezoidal unit 2 that narrows of main grid line, main grid line rectangular element 1 length 10mm wherein, width is 4.5mm, is also provided with circular hollow out aperture 3 on main grid line, the trapezoidal length that narrows unit 2 of main grid line is 5mm, and end width is 0.2mm.Secondary grid line narrows unit 2 by connecting line 4 and main grid line and is connected.
Embodiment 2: as shown in accompanying drawing 3, Fig. 4, another kind of solar cell electrode structure at right side, comprise main grid line, secondary grid line and connecting line, described main grid line is integrated bulk, and concentrate a side that is distributed in battery, main grid line comprises that main grid line rectangular element 5 and main grid line half elliptic narrow unit 6, wherein main grid line rectangular element 5 length are 10mm, width is 4.5mm, on main grid line, be also provided with circular hollow out aperture 3, the long axis length that main grid line half elliptic narrows unit 6 is 5mm, and minor axis length is 4.5mm.Secondary grid line narrows unit 6 by connecting line 4 and main grid line and is connected.
Claims (5)
1. a solar cell electrode structure at right side, comprise main grid line, secondary grid line and connecting line, it is characterized in that: described main grid line is integrated bulk, described main grid line is concentrated a side that is distributed in battery, described main grid line comprises that main grid line rectangular element and main grid line narrow unit, and described secondary grid line narrows unit by connecting line with main grid line and is connected.
2. a kind of solar cell electrode structure at right side as claimed in claim 1, is characterized in that: the radical of described main grid line is 3～7.
3. a kind of solar cell electrode structure at right side as claimed in claim 1, is characterized in that: it is taper, trapezoidal or semicircle that described main grid line narrows unit.
4. a kind of solar cell electrode structure at right side as claimed in claim 1, it is characterized in that: described main grid line rectangular element length is between 5～20mm, width is between 2～7mm, it is between 1～5mm that described main grid line narrows element length, when main grid line is when to narrow unit be trapezoidal, end width is between 0.2～2mm.
5. a kind of solar cell electrode structure at right side as claimed in claim 1, is characterized in that: described main grid line is provided with hollow out aperture, and described hollow out aperture is rectangle, circle, rhombus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320645227.2U CN203521437U (en) | 2013-10-18 | 2013-10-18 | Front electrode structure of solar cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320645227.2U CN203521437U (en) | 2013-10-18 | 2013-10-18 | Front electrode structure of solar cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203521437U true CN203521437U (en) | 2014-04-02 |
Family
ID=50380324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320645227.2U Expired - Lifetime CN203521437U (en) | 2013-10-18 | 2013-10-18 | Front electrode structure of solar cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203521437U (en) |
-
2013
- 2013-10-18 CN CN201320645227.2U patent/CN203521437U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140402 |
|
| CX01 | Expiry of patent term |