CN216311797U - Solar cell with anti-breaking grid design - Google Patents
Solar cell with anti-breaking grid design Download PDFInfo
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- CN216311797U CN216311797U CN202121243183.1U CN202121243183U CN216311797U CN 216311797 U CN216311797 U CN 216311797U CN 202121243183 U CN202121243183 U CN 202121243183U CN 216311797 U CN216311797 U CN 216311797U
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- solar cell
- grid
- fine
- grids
- auxiliary
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- 239000000758 substrate Substances 0.000 claims abstract description 8
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 4
- 229910052709 silver Inorganic materials 0.000 claims description 4
- 239000004332 silver Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 230000002265 prevention Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 230000004075 alteration Effects 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
- 238000007650 screen-printing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a solar cell with a grid breakage prevention design, which comprises a photovoltaic substrate, wherein a main grid and a plurality of thin grids which are connected with the main grid and are arranged in parallel are arranged on the photovoltaic substrate, and every two adjacent thin grids are connected with each other through a plurality of first auxiliary thin grids. The structure of the solar cell provided by the utility model can reduce the reject ratio of the solar cell.
Description
Technical Field
The utility model relates to the technical field of solar cells, in particular to a cell structure capable of reducing the reject ratio of a solar cell.
Background
The electrode structure of the conventional solar cell (as shown in fig. 1) generally includes a main grid a and a plurality of fine grids B connected to the main grid a. In recent years, in order to reduce the production cost and reduce the silver paste consumption, the width of the fine grid B is continuously narrowed. However, the narrow width of the fine grid B causes a problem that printing is difficult and a plurality of fractures are likely to occur on the fine grid B (as shown in fig. 1). If more than two breaks occur in the fine grid, the broken part (the part indicated by the symbol C in fig. 1) cannot be conducted with the main grid, resulting in a decrease in the yield of the solar cell.
SUMMERY OF THE UTILITY MODEL
In view of the defects in the prior art, the utility model provides a solar cell with a breakage-proof grid design, which comprises a photovoltaic substrate, wherein a main grid and a plurality of fine grids which are connected with the main grid and are arranged in parallel with each other are arranged on the photovoltaic substrate, and every two adjacent fine grids are connected with each other through a plurality of first auxiliary fine grids.
Preferably, the first auxiliary fine gate is perpendicular to the fine gate.
Preferably, two first auxiliary fine grids adjacent to each other in the direction perpendicular to the fine grids are connected to the fine grids in a staggered manner.
Preferably, every two adjacent first auxiliary fine grids are connected with each other through a plurality of second auxiliary fine grids.
Preferably, the second auxiliary fine gate is perpendicular to the first auxiliary fine gate.
Preferably, two second auxiliary fine grids adjacent to each other in a direction perpendicular to the first auxiliary fine grid are connected to the first auxiliary fine grid in a staggered manner.
Preferably, the first auxiliary fine grid and the second auxiliary fine grid are made of silver paste material
In the solar cell structure provided by the utility model, the adjacent fine grids are connected with each other through the plurality of first auxiliary fine grids, so that even if the fine grids are broken at a plurality of positions, the broken fine grids can be conducted with other adjacent fine grids through the first auxiliary fine grids, thereby playing a role of an electrode and reducing the reject ratio of the solar cell.
Drawings
Fig. 1 is a schematic structural view of a conventional solar cell;
FIG. 2 is a schematic structural diagram of a solar cell with a break-preventing grid design according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a solar cell with a break-preventing grid design according to another embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention are described in detail below with reference to the accompanying drawings. Examples of these preferred embodiments are illustrated in the accompanying drawings. The embodiments of the utility model shown in the drawings and described in accordance with the drawings are exemplary only, and the utility model is not limited to these embodiments.
It should be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and/or processing steps closely related to the scheme according to the present invention are shown in the drawings, and other details not so relevant to the present invention are omitted.
In view of the problems of the prior art mentioned in the background, the present invention provides the following embodiments.
Example 1
As shown in fig. 2, the present embodiment provides a solar cell with a break-proof grid design, which includes a photovoltaic substrate 1, and a main grid 2 and a plurality of fine grids 3 disposed on the photovoltaic substrate 1. The plurality of fine grids 3 are arranged in parallel with each other, and each fine grid 3 is connected with the main grid 2. Wherein, every two adjacent fine grids 3 are connected with each other through a plurality of first auxiliary fine grids 31, and the first auxiliary fine grids 31 are perpendicular to the fine grids 3.
In the solar cell provided by the embodiment, the adjacent fine grids 3 are connected with each other through the plurality of first auxiliary fine grids 31, so even if the breakage occurs at a plurality of positions on the fine grids 3, the disconnected fine grids 3 can be partially conducted with other adjacent fine grids 3 through the first auxiliary fine grids 31, thereby playing a role of an electrode and reducing the defect rate of the solar cell.
Optionally, in this embodiment, two adjacent first auxiliary fine grids 31 in a direction perpendicular to the fine grids 3 are connected to the fine grids 3 in a staggered manner, so as to correspond to irregular breakage of the fine grids 3.
Preferably, the main grid 2, the fine grid 3 and the first auxiliary fine grid 31 of the present embodiment are all made by a screen printing process.
Example 2
As shown in fig. 3, on the basis of the structure of embodiment 1, in this embodiment, in order to deal with the problem that the first auxiliary fine grids 31 may be broken, two adjacent first auxiliary fine grids 31 are connected to each other through a plurality of second auxiliary fine grids 32. Preferably, the second auxiliary fine gate 32 is perpendicular to the first auxiliary fine gate 31. In order to further cope with the irregular breakage problem, two second auxiliary fine grids 32 adjacent to each other in the direction perpendicular to the first auxiliary fine grid 31 are connected to the first auxiliary fine grid 31 in a staggered manner. The first auxiliary fine grid 31 and the second auxiliary fine grid 32 of the present embodiment are made of silver paste material.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. The term "comprising", without further limitation, means that the element so defined is not excluded from the group consisting of additional identical elements in the process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A solar cell with a breakage-proof grid design comprises a photovoltaic substrate, wherein a main grid and a plurality of fine grids which are connected with the main grid and are arranged in parallel are arranged on the photovoltaic substrate, and every two adjacent fine grids are connected with each other through a plurality of first auxiliary fine grids.
2. The solar cell of claim 1, wherein the first auxiliary fine grid is perpendicular to the fine grid.
3. The solar cell according to claim 2, wherein two of the first auxiliary fine grids adjacent in a direction perpendicular to the fine grids are connected to the fine grids with a shift therebetween.
4. The solar cell according to any one of claims 1 to 3, wherein every two adjacent first auxiliary fine grids are connected with each other through a plurality of second auxiliary fine grids.
5. The solar cell of claim 4, wherein the second auxiliary fine grid is perpendicular to the first auxiliary fine grid.
6. The solar cell according to claim 5, wherein two of the second auxiliary fine grids adjacent in a direction perpendicular to the first auxiliary fine grid are connected to the first auxiliary fine grid with a mutual offset therebetween.
7. The solar cell of claim 4, wherein the first and second auxiliary fine grids are made of a silver paste material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121243183.1U CN216311797U (en) | 2021-06-04 | 2021-06-04 | Solar cell with anti-breaking grid design |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121243183.1U CN216311797U (en) | 2021-06-04 | 2021-06-04 | Solar cell with anti-breaking grid design |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216311797U true CN216311797U (en) | 2022-04-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121243183.1U Active CN216311797U (en) | 2021-06-04 | 2021-06-04 | Solar cell with anti-breaking grid design |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216311797U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115101607A (en) * | 2022-06-10 | 2022-09-23 | 青海黄河上游水电开发有限责任公司西宁太阳能电力分公司 | Solar cell |
-
2021
- 2021-06-04 CN CN202121243183.1U patent/CN216311797U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115101607A (en) * | 2022-06-10 | 2022-09-23 | 青海黄河上游水电开发有限责任公司西宁太阳能电力分公司 | Solar cell |
| CN115101607B (en) * | 2022-06-10 | 2023-11-14 | 青海黄河上游水电开发有限责任公司西宁太阳能电力分公司 | Solar cell |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240118 Address after: 810008 No. 43, Wusi West Road, Chengxi District, Xining City, Qinghai Province Patentee after: Huanghe Hydropower Development Co., Ltd. Address before: 810007 No. 4, Jinsi Road, Dongchuan Industrial Park, Xining City, Qinghai Province Patentee before: Xining solar power branch of Qinghai upper Yellow River Hydropower Development Co.,Ltd. Patentee before: Xi'an solar power branch of Qinghai upper Yellow River Hydropower Development Co.,Ltd. Patentee before: HUANGHE HYDROPOWER DEVELOPMENT Co.,Ltd. Patentee before: Huanghe Hydropower Development Co., Ltd. |