CN210123735U - Solar cell and photovoltaic module - Google Patents
Solar cell and photovoltaic module Download PDFInfo
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- CN210123735U CN210123735U CN201920928104.7U CN201920928104U CN210123735U CN 210123735 U CN210123735 U CN 210123735U CN 201920928104 U CN201920928104 U CN 201920928104U CN 210123735 U CN210123735 U CN 210123735U
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Abstract
The application discloses a solar cell, wherein a main grid on the front surface of the solar cell comprises a welding part; the welding part comprises a left end bulge and a right end bulge, and the left end bulge, the right end bulge and the main grid form a clamping groove in a surrounding mode; the clamping groove is used for fixing a welding strip of the photovoltaic module, so that the welding strip cannot move left and right. This application makes through addding protruding structure the solder strip with main grid can keep relatively fixed and the stable state of mechanics under the condition of not receiving other external forces, makes the solder strip can not break away from when the welding main grid has avoided the rosin joint, has improved final off-the-shelf yield of solar cell. This application still provides a photovoltaic module who has above-mentioned beneficial effect simultaneously.
Description
Technical Field
The application relates to the field of photovoltaic energy, in particular to a solar cell and a photovoltaic module.
Background
Due to the fact that energy crisis and increasingly serious environmental pollution become more and more serious, and the production and investment of renewable energy sources are gradually increased in various countries, the whole photovoltaic industry achieves breakthrough and rapid development, and the power consumption cost is lower and lower. With the development of technology in recent years, solar cells are becoming energy sources capable of stably producing energy in large scale from the first theoretically cleanest inexhaustible energy source step by step, and the yield of solar cells is also rising year by year.
Among the current photovoltaic module, connect through leading the solder strip between the adjacent monolithic solar wafer, the main bars of different battery pieces realize the electricity through above-mentioned solder strip and connect, and in order to further promote battery efficiency, can adopt two kinds of technical means among the prior art usually, firstly, the main bars with solar cell is as thin as possible, secondly, adopt circular solder strip, the effective photic area of solar cell can be increased to the main bars that reduce, circular solder strip can play the effect of reflector panel, increase solar cell's the light inlet volume. However, the above improvement also causes a problem that the circular solder strip is easy to slide on the surface of the thin main grid, so that the solder strip is separated from the slurry solder joint on the surface of the solar cell, thereby causing a cold joint, failing to collect current, reducing the power of the assembly and affecting the yield of the assembly.
Content of application
The utility model aims at providing a solar cell and photovoltaic module to solve among the prior art solder strip and easily break away from the main grid, leave the thick liquids welding point on solar cell surface, cause the rosin joint, influence the problem of subassembly yield.
In order to solve the technical problem, the application provides a solar cell, wherein a main grid on the front side of the solar cell comprises a welding part;
the welding part comprises a left end bulge and a right end bulge, and the left end bulge, the right end bulge and the main grid form a clamping groove in a surrounding mode;
the clamping groove is used for fixing a welding strip of the photovoltaic module, so that the welding strip cannot move left and right.
Optionally, in the solar cell, a surface of the card slot is matched with the solder strip.
Optionally, in the solar cell, a depth of the card slot is greater than a radius of the solder strip.
Optionally, in the solar cell, the solder is a conductive solder.
Optionally, in the solar cell, the solder is a metal solder.
Optionally, in the solar cell, the solder is a silver solder or an aluminum solder.
Optionally, in the solar cell, the number of primary gratings of the front side of the solar cell ranges from 5 to 18, inclusive.
The application also provides a photovoltaic module, which comprises any one of the solar cells.
According to the solar cell provided by the application, the main grid on the front surface of the solar cell comprises a welding part; the welding part comprises a left end bulge and a right end bulge, and the left end bulge, the right end bulge and the main grid form a clamping groove in a surrounding mode; the clamping groove is used for fixing a welding strip of the photovoltaic module, so that the welding strip cannot move left and right. This application makes through addding protruding structure the solder strip with main grid can keep relatively fixed and the stable state of mechanics under the condition of not receiving other external forces, makes the solder strip can not break away from when the welding main grid has avoided the rosin joint, has improved final off-the-shelf yield of solar cell. This application still provides a photovoltaic module who has above-mentioned beneficial effect simultaneously.
Drawings
For a clearer explanation of the embodiments or technical solutions of the prior art of the present application, the drawings needed for the description of the embodiments or prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of one embodiment of a solar cell provided herein;
fig. 2 is a schematic structural diagram of another embodiment of a solar cell provided in the present application.
Detailed Description
In order that those skilled in the art will better understand the disclosure, the following detailed description will be given with reference to the accompanying drawings. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The core of the present application is to provide a solar cell, a schematic structural diagram of one embodiment of which is shown in fig. 1, which is called as a first embodiment, and a main grid 200 on the front surface of the solar cell includes a welding part;
the welding part comprises a left end bulge 310 and a right end bulge 320, and the left end bulge 310, the right end bulge 320 and the main grid 200 form a clamping groove in an enclosing manner;
the clamping groove is used for fixing the welding strip 100 of the photovoltaic module, so that the welding strip 100 cannot move left and right.
In particular, the depth of the clamping groove is greater than the radius of the solder strip 100; as described above, most of the solder strips 100 in the prior art are circular solder strips 100, and if the depth of the clamping groove is smaller than the radius of the solder strip 100, a component that separates the solder strip 100 from the clamping groove is always generated under the action of an external force, and the depth of the clamping groove is set to be larger than the radius of the solder strip 100, so that the solder strip 100 also has a corresponding clamping groove surface to provide a supporting force for the solder strip 100 after being influenced by the external force, and the solder strip 100 is located in the clamping groove.
It should be noted that the welding part is a conductive welding part, and further, the welding part is a metal welding part, such as a silver welding part or an aluminum welding part; the metal plasticity is strong, the conductivity is good, and the use of the welding piece with the conductivity is equivalent to providing an additional channel for the current carrier to move from the main grid 200 to the welding strip 100, so that the electrical impedance in the current carrier transmission is reduced, and the working efficiency of the solar cell is improved.
It should be particularly noted that the number of the main grids 200 on the front side of the solar cell ranges from 5 to 18, inclusive, such as any of 5.0, 7.0 or 18.0.
In the solar cell provided by the application, the main grid 200 on the front surface of the solar cell comprises a welding part; the welding part comprises a left end bulge 310 and a right end bulge 320, and the left end bulge 310, the right end bulge 320 and the main grid 200 form a clamping groove in an enclosing manner; the clamping groove is used for fixing the welding strip 100 of the photovoltaic module, so that the welding strip 100 cannot move left and right. This application makes through addding protruding structure solder strip 100 with main bars 200 can keep relatively fixed and the stable state of mechanics under the condition of not receiving other external forces, makes solder strip 100 can not break away from when the welding main bars 200 has avoided the rosin joint, has improved final off-the-shelf yield of solar cell.
On the basis of the above specific embodiments, the surface of the card slot is further limited to obtain a second specific embodiment, a schematic structural diagram of which is shown in fig. 2, and a main grid 200 on the front surface of the solar cell includes a welding part;
the welding part comprises a left end bulge 310 and a right end bulge 320, and the left end bulge 310, the right end bulge 320 and the main grid 200 form a clamping groove in an enclosing manner;
the clamping groove is used for fixing the welding strip 100 of the photovoltaic module, so that the welding strip 100 cannot move left and right;
the surface of the slot mates with the solder strip 100.
The difference between the present embodiment and the above embodiments is that the present embodiment defines the relationship between the solder strip 100 and the surface of the card slot, and the rest of the structure is the same as the above embodiments, and is not repeated herein.
In this embodiment, the surface of the card slot is further limited to be matched with the solder strip 100, where the matching indicates that the surface of the card slot should contact the surface of the solder strip 100 as much as possible, and the larger the contact area is, the smaller the electrical impedance in carrier transmission is, thereby reducing the internal loss of the solar cell and improving the conversion efficiency of the cell.
The application also provides a photovoltaic module, which comprises any one of the solar cells. In the solar cell provided by the application, the main grid 200 on the front surface of the solar cell comprises a welding part; the welding part comprises a left end bulge 310 and a right end bulge 320, and the left end bulge 310, the right end bulge 320 and the main grid 200 form a clamping groove in an enclosing manner; the clamping groove is used for fixing the welding strip 100 of the photovoltaic module, so that the welding strip 100 cannot move left and right. This application makes through addding protruding structure solder strip 100 with main bars 200 can keep relatively fixed and the stable state of mechanics under the condition of not receiving other external forces, makes solder strip 100 can not break away from when the welding main bars 200 has avoided the rosin joint, has improved final off-the-shelf yield of solar cell.
The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
It is to be noted that, in the present specification, relational terms such as first and second, and the like are 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. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The solar cell and the photovoltaic module provided by the application are described in detail above. The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.
Claims (8)
1. A solar cell, characterized in that a main grid of a front side of the solar cell comprises a weldment;
the welding part comprises a left end bulge and a right end bulge, and the left end bulge, the right end bulge and the main grid form a clamping groove in a surrounding mode;
the clamping groove is used for fixing a welding strip of the photovoltaic module, so that the welding strip cannot move left and right.
2. The solar cell of claim 1, wherein a surface of the card slot mates with the solder ribbon.
3. The solar cell of claim 1, wherein a depth of the card slot is greater than a radius of the solder ribbon.
4. The solar cell of claim 1, wherein the solder is a conductive solder.
5. The solar cell of claim 4, wherein the solder is a metal solder.
6. The solar cell of claim 5, wherein the solder is a silver solder or an aluminum solder.
7. The solar cell of claim 1, wherein the number of primary gratings of the front side of the solar cell ranges from 5 to 18, inclusive.
8. A photovoltaic module comprising a solar cell according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920928104.7U CN210123735U (en) | 2019-06-19 | 2019-06-19 | Solar cell and photovoltaic module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920928104.7U CN210123735U (en) | 2019-06-19 | 2019-06-19 | Solar cell and photovoltaic module |
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| Publication Number | Publication Date |
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| CN210123735U true CN210123735U (en) | 2020-03-03 |
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| CN201920928104.7U Active CN210123735U (en) | 2019-06-19 | 2019-06-19 | Solar cell and photovoltaic module |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110148641A (en) * | 2019-06-19 | 2019-08-20 | 晶科能源有限公司 | A kind of solar battery and preparation method thereof, a kind of photovoltaic module |
| CN114639749A (en) * | 2022-05-20 | 2022-06-17 | 英利能源发展有限公司 | Photovoltaic module and packaging method thereof |
| CN117238984A (en) * | 2023-11-14 | 2023-12-15 | 无锡华晟光伏科技有限公司 | Photovoltaic cell and photovoltaic module |
-
2019
- 2019-06-19 CN CN201920928104.7U patent/CN210123735U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110148641A (en) * | 2019-06-19 | 2019-08-20 | 晶科能源有限公司 | A kind of solar battery and preparation method thereof, a kind of photovoltaic module |
| CN114639749A (en) * | 2022-05-20 | 2022-06-17 | 英利能源发展有限公司 | Photovoltaic module and packaging method thereof |
| CN117238984A (en) * | 2023-11-14 | 2023-12-15 | 无锡华晟光伏科技有限公司 | Photovoltaic cell and photovoltaic module |
| CN117238984B (en) * | 2023-11-14 | 2024-03-29 | 无锡华晟光伏科技有限公司 | Photovoltaic cell and photovoltaic module |
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| CP03 | Change of name, title or address |
Address after: 334000 No.1 Jingke Avenue, Shangrao Economic Development Zone, Jiangxi Province Patentee after: Jingke Energy Co.,Ltd. Patentee after: ZHEJIANG JINKO SOLAR Co.,Ltd. Address before: 334100, No. 1, crystal Road, Shangrao Economic Development Zone, Jiangxi, China Patentee before: JINKO SOLAR Co.,Ltd. Patentee before: ZHEJIANG JINKO SOLAR Co.,Ltd. |
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Effective date of registration: 20210402 Address after: 334000 No.1 Jingke Avenue, Shangrao economic and Technological Development Zone, Shangrao City, Jiangxi Province Patentee after: Jingke energy (Shangrao) Co.,Ltd. Patentee after: Jingke Energy Co.,Ltd. Patentee after: ZHEJIANG JINKO SOLAR Co.,Ltd. Address before: 334000 No.1 Jingke Avenue, Shangrao Economic Development Zone, Jiangxi Province Patentee before: Jingke Energy Co.,Ltd. Patentee before: ZHEJIANG JINKO SOLAR Co.,Ltd. |
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