CN104201218A - Solar battery surface grid line structure used for linear light-gathering component - Google Patents
Solar battery surface grid line structure used for linear light-gathering component Download PDFInfo
- Publication number
- CN104201218A CN104201218A CN201410500960.4A CN201410500960A CN104201218A CN 104201218 A CN104201218 A CN 104201218A CN 201410500960 A CN201410500960 A CN 201410500960A CN 104201218 A CN104201218 A CN 104201218A
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- CN
- China
- Prior art keywords
- grid line
- thin grid
- grid lines
- thin
- solar battery
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- 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.)
- Pending
Links
- 239000011521 glass Substances 0.000 abstract description 6
- 230000005611 electricity Effects 0.000 abstract 1
- 238000010248 power generation Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/02—Details
- H01L31/0224—Electrodes
- H01L31/022408—Electrodes for devices characterised by at least one potential jump barrier or surface barrier
- H01L31/022425—Electrodes for devices characterised by at least one potential jump barrier or surface barrier for solar cells
-
- 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 invention discloses a solar battery surface grid line structure used for a linear light-gathering component. The solar battery surface grid line structure comprises a plurality of thin grid lines arranged on a solar panel and distributed at equal intervals, and at least two main grid lines vertical to the thin grid lines, wherein the thin grid lines are completely independent from each other and are not connected; the main grid lines are separated between every two adjacent thin grid lines to be divided into a plurality of independent units corresponding to the thin grid lines; gap positions between separated main grid lines are scribing positions; after the solar panel is cut along the scribing positions, strip-shaped solar batteries are formed, each strip-shaped solar battery is provided with only one of the thin grid lines, and each thin grid line is positioned at the center of the corresponding strip-shaped solar battery. According to the invention, through the structural design of the grid lines on the solar panel, the thin grid lines are effectively prevented from shielding incident light which has high energy distribution and is obtained after the gathering of a linear light-gathering glass panel, and further, the electricity generation performance of the linear light-gathering component is improved.
Description
Technical field
The invention belongs to technical field of solar utilization technique, particularly a kind of surperficial grid line structure design that is applicable to the solar cell of linear concentrating photovoltaic assembly.
Background technology
Solar battery surface grid line design for common crystal silicon flat component is all based in the situation that assurance cell piece series resistance is less at present, reduces the shielded area of grid line as far as possible, thereby improves the generated output of whole cell piece.Therefore its surface detail grid line design is generally uniformly distributed, and front main grid line is generally continuous distribution, therefore there is a certain width cutting into, surperficial grid line quantity on the every battery obtaining and position are also inconsistent, what for example have has a thin grid line, and have there are two, and when being cut, cell piece also can cause destroying to some thin grid line, such as just cutting to thin grid line, this just causes the grid line quantity of obtained strip solar cell and layout all to present certain randomness, thereby affects the performance of battery.
For above-mentioned technical problem, also have at present and aim at the designed annular grid line design of line style concentrating component, as shown in Figure 1, although it can effectively improve the fill factor, curve factor (FF value) of strip solar cell, but because the thin grid line on cell piece surface distributes too intensive, cause the use amount of printing material (silver slurry) of required thin grid line large, thereby increased the cost of solar cell, in addition, because the sunlight of normal incidence is after linear concentrating component linear condensing glass panel used converges, the Energy distribution of its hot spot is that both sides are strong, a little less than centre, as shown in Figures 2 and 3, the annular grid line design that therefore thin grid line is distributed in strip cell both sides of edges is carrying out in the process of contraposition with linear optically focused panel, very likely because the Energy distribution high incident light hot spot of larger bit errors after causing converging overlaps with a certain thin grid line of the edge of strip solar cell, thereby cause serious energy to block to incident light, and then affect the power generation performance of linear concentrating component.
Summary of the invention
The object of the invention is to: for the problem of above-mentioned existence, provide a kind of cutting that is applicable to solar panel, and after effectively avoiding cutting, thin grid line causes the solar battery surface grid line structure for linear concentrating component blocking to the high incident light of Energy distribution.
Technical scheme of the present invention is achieved in that a kind of solar battery surface grid line structure for linear concentrating component, comprise the some thin grid line that is arranged on solar panel and equidistantly distributes and with the vertically arranged at least two main grid lines of described thin grid line, it is characterized in that: completely independent connected mutually between described some thin grid lines, described main grid line disconnects between adjacent two thin grid lines, be divided into some and the every separate unit that thin grid line is corresponding, the gap location that described main grid line disconnects is scribing position, after described solar panel is cut along scribing position, on formed each strip solar cell, there is and only has a thin grid line, and described thin grid line is all positioned at the center of corresponding strip solar cell.
Solar battery surface grid line structure for linear concentrating component of the present invention, described in it, the width of every thin grid line is 120 μ m～200 μ m.
Solar battery surface grid line structure for linear concentrating component of the present invention, described in it, in each strip solar cell, the main grid line width of separate unit is less than the width of strip solar cell.
The present invention is by the structural design to grid line on solar panel, make thin grid line in the strip solar cell after solar panel cutting be positioned at the center of its corresponding strip solar cell, thereby effectively avoided thin grid line to converge to linear condensing glass panel blocking that the high incident light of rear gained Energy distribution causes, and then improved the power generation performance of linear concentrating component.
Accompanying drawing explanation
Fig. 1 is the structural design schematic diagram of grid line on existing solar panel.
Fig. 2 and Fig. 3 are the hot spot distribution map of normal incidence sunlight after linear condensing glass panel.
Fig. 4 is structural design schematic diagram of the present invention.
Fig. 5 is the structural representation of the strip solar cell of the present invention after cutting.
Mark in figure: 1 is solar panel, 2 is thin grid line, and 3 is main grid line, and 4 is strip solar cell.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail.
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
As shown in Figures 4 and 5, a kind of solar battery surface grid line structure for linear concentrating component, comprise the some thin grid line 2 that is arranged on solar panel 1 and equidistantly distributes and with the vertically arranged three main grid lines 3 of described thin grid line 2, completely independent connected mutually between described some thin grid lines 2, described main grid line 3 disconnects between adjacent two thin grid lines 2, be divided into some and the every separate unit that thin grid line 2 is corresponding, the gap location that described main grid line 3 disconnects is scribing position, after described solar panel 1 is cut along scribing position, on formed each strip solar cell 4, there is and only has a thin grid line 2, and described thin grid line 2 is all positioned at the center of corresponding strip solar cell 4, like this, thin grid line can not converge the incident light generation that rear gained Energy distribution is high to linear condensing glass panel and block, effectively avoided because of the impact of thin grid line on linear concentrating component power generation performance, wherein, in described each strip solar cell 4, the main grid line width of separate unit is less than the width of strip solar cell 4.
Decline for fear of the fill factor, curve factor (FF value) owing to adopting single grid line design to cause, increased the width of thin grid line on each strip solar cell, on general solar panel, the width of thin grid line is 60 μ m～100 μ m, in this structural design, the width of described every thin grid line 2 is 120 μ m～200 μ m.Wherein, for the increase of thin grid line width, be irrational to those skilled in the art in fact, because the increase of thin grid line width means, solar cell has been caused to larger shielded area, be to affect solar cell generating efficiency.But in this structural design, because the position of thin grid line in strip solar cell avoided the position that Energy distribution high incident light irradiates and adopted single structural design, like this, although increase the width of thin grid line, caused the expansion to solar cell shielded area, but the position of thin grid line is positioned at the weak place of light intensity after linear condensing glass panel converges, it blocks and seldom incident light, the decline of fill factor, curve factor (FF value) has effectively been avoided again in the increase of its width simultaneously, therefore, as a whole, the structural design of this grid line has improved strip solar cell generating efficiency in fact, thereby overcome the technology prejudice that those skilled in the art must cause solar cell generating efficiency to reduce for the width that increases thin grid line.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (3)
1. the solar battery surface grid line structure for linear concentrating component, comprise be arranged on solar panel (1) some thin grid line (2) upper and that equidistantly distribute and with the vertically arranged at least two main grid lines of described thin grid line (2) (3), it is characterized in that: completely independent connected mutually between described some thin grid lines (2), described main grid line (3) disconnects between adjacent two thin grid lines (2), be divided into some separate units corresponding with every thin grid line (2), the gap location that described main grid line (3) disconnects is scribing position, after described solar panel (1) is cut along scribing position, on formed each strip solar cell (4), there is and only has a thin grid line (2), and described thin grid line (2) is all positioned at the center of corresponding strip solar cell (4).
2. the solar battery surface grid line structure for linear concentrating component according to claim 1, is characterized in that: the width of described every thin grid line (2) is 120 μ m～200 μ m.
3. the solar battery surface grid line structure for linear concentrating component according to claim 2, is characterized in that: in described each strip solar cell (4), the main grid line width of separate unit is less than the width of strip solar cell (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410500960.4A CN104201218A (en) | 2014-09-26 | 2014-09-26 | Solar battery surface grid line structure used for linear light-gathering component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410500960.4A CN104201218A (en) | 2014-09-26 | 2014-09-26 | Solar battery surface grid line structure used for linear light-gathering component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104201218A true CN104201218A (en) | 2014-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410500960.4A Pending CN104201218A (en) | 2014-09-26 | 2014-09-26 | Solar battery surface grid line structure used for linear light-gathering component |
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| CN (1) | CN104201218A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103400871A (en) * | 2013-08-12 | 2013-11-20 | 四川钟顺太阳能开发有限公司 | Grid line design on surface of solar battery |
| CN203631578U (en) * | 2013-12-17 | 2014-06-04 | 中国华能集团清洁能源技术研究院有限公司 | Cell unit welding mold of low-concentration photovoltaic cell |
| CN204118087U (en) * | 2014-09-26 | 2015-01-21 | 四川钟顺太阳能开发有限公司 | A kind of layout structure of solar cell grid line |
-
2014
- 2014-09-26 CN CN201410500960.4A patent/CN104201218A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103400871A (en) * | 2013-08-12 | 2013-11-20 | 四川钟顺太阳能开发有限公司 | Grid line design on surface of solar battery |
| CN203631578U (en) * | 2013-12-17 | 2014-06-04 | 中国华能集团清洁能源技术研究院有限公司 | Cell unit welding mold of low-concentration photovoltaic cell |
| CN204118087U (en) * | 2014-09-26 | 2015-01-21 | 四川钟顺太阳能开发有限公司 | A kind of layout structure of solar cell grid line |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141210 |
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| RJ01 | Rejection of invention patent application after publication |