CN214705955U - Photovoltaic cell array and photovoltaic module - Google Patents
Photovoltaic cell array and photovoltaic module Download PDFInfo
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- CN214705955U CN214705955U CN202121501965.0U CN202121501965U CN214705955U CN 214705955 U CN214705955 U CN 214705955U CN 202121501965 U CN202121501965 U CN 202121501965U CN 214705955 U CN214705955 U CN 214705955U
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- photovoltaic
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- photovoltaic cell
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- 229910000679 solder Inorganic materials 0.000 claims abstract description 31
- 238000003466 welding Methods 0.000 claims abstract description 19
- 238000010030 laminating Methods 0.000 abstract description 4
- 238000005452 bending Methods 0.000 abstract description 3
- 238000010248 power generation Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000002313 adhesive film Substances 0.000 description 2
- 238000003491 array Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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Classifications
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- 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 provides a photovoltaic cell piece array and photovoltaic module, wherein, photovoltaic cell piece array include a plurality of battery pieces and with the flexible solder strip that the battery piece matches, wherein, each the upper surface and the lower surface polarity of battery piece are different, and all are provided with main grid electrode, flexible solder strip include first section and with the second section that the one end of first section links to each other, the first section laminating the main grid electrode setting of battery piece, the laminating of second section the surface edge and the lateral wall setting of battery piece, two are adjacent the battery piece lateral wall the welding can be laminated to the second section. The two adjacent cells of the photovoltaic cell array are welded through the flexible welding strips, the cell distance generated by bending is reduced, the density of the cells in the assembly is increased, and the power generation efficiency of the photovoltaic assembly is effectively improved.
Description
Technical Field
The utility model relates to a solar photovoltaic field especially relates to a photovoltaic cell piece array and photovoltaic module.
Background
In the current industrial production, the solar cells are connected by welding solder strips to form a series circuit, the solder strips are shaped into a bent S shape, and the adjacent cells have larger cell spacing after being welded. In order to improve the efficiency and output power of the assembly, photovoltaic enterprises have introduced various efficient assembly manufacturing technologies, such as a shingle technology and a high-density small-spacing technology. The tiling technology overlaps the positive and negative electrodes of two adjacent battery pieces with each other through conductive adhesive to form a series circuit, but additionally adds the procedures and equipment of conductive adhesive, terminals, curing and the like, so that the process technology is complex and the production cost is high; the high-density small-spacing assembly technology mainly reduces the spacing between the battery pieces and improves the assembly efficiency through shaping and welding the shape of the strip. However, with the reduction of the cell pitch and the increasing of the cell size, the number of the hidden cracks of the cells after the assembly is laminated is increased, and the yield of the finished assembly is greatly reduced.
SUMMERY OF THE UTILITY MODEL
The utility model provides a photovoltaic cell array, which is used for effectively ensuring the stability of a component while reducing the space between cells and improving the array density of the cells, and comprises a plurality of cells and flexible solder strips matched with the cells, wherein,
the polarity of the upper surface and the lower surface of each battery piece is different, the upper surface and the lower surface of each battery piece are respectively provided with a main grid electrode, each flexible welding strip comprises a first section and a second section connected with one end of the first section, the first sections are attached to the main grid electrodes of the battery pieces, the second sections are attached to the surface edges and the side walls of the battery pieces, and the second sections of the two adjacent battery piece side walls can be attached and welded.
In specific implementation, two surfaces of each cell are provided with a plurality of main grid electrodes arranged in parallel and the flexible welding strips the quantity of which is matched with that of the main grid electrodes.
In a specific implementation, the first segment of the flexible solder strip is soldered to the main gate electrode.
In specific implementation, 2 to 15 flexible welding strips are welded on two surfaces of each battery piece.
In specific implementation, the surface edge and the side wall of the battery piece are provided with insulating layers.
In a specific implementation, the thickness of the insulating layer is smaller than that of the flexible solder strip.
In specific implementation, the second section of the flexible welding strip is flat and is provided with a surface edge and a side wall which are bent and attached to the battery piece.
In a specific implementation, the first section of the flexible solder strip has a first thickness and the second section has a second thickness that is less than the first thickness.
In a specific implementation, the thickness of the second segment is less than or equal to 200 microns.
The utility model also provides a photovoltaic module, photovoltaic module includes photovoltaic cell piece array.
The utility model provides a photovoltaic cell piece array, including a plurality of battery piece units that constitute by battery piece and flexible conductive metal solder strip, battery piece upper surface and lower surface distribution electrode main grid, every electrode main grid of battery piece all has a flexible solder strip laminating to connect to two adjacent battery pieces weld through the flexibility and take the welding just can form series circuit, and the second section that the flexibility was welded and is taken is located the piece interval department of two adjacent battery pieces. The two adjacent photovoltaic cell arrays are welded through the flexible welding strips, the cell interval generated by bending is reduced, the density of the assembly is increased, and the power generation efficiency of the assembly is effectively improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts. In the drawings:
fig. 1 is a schematic structural diagram of a photovoltaic cell array according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a flexible solder strip in accordance with one embodiment of the present invention;
FIG. 3 is a schematic diagram of an insulating layer according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a photovoltaic module according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention will be described in detail with reference to the accompanying drawings. The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention.
As shown in fig. 1, the present invention provides a photovoltaic cell array for effectively ensuring the stability of a module while reducing the space between cells and increasing the density of the cell array, the photovoltaic cell array comprises a plurality of cells 1 and flexible solder strips 2 matching with the cells 1, wherein,
the polarity of the upper surface and the lower surface of each battery piece 1 is different, and the upper surface and the lower surface of each battery piece 1 are respectively provided with a main grid electrode, each flexible welding strip 2 comprises a first section and a second section 202 connected with one end of the first section 201, the first section 201 is attached to the main grid electrode of the battery piece 1, the second section 202 is attached to the surface edge and the side wall of the battery piece, and the second sections 202 of the two adjacent battery piece side walls can be attached and welded.
In the specific implementation, it can be understood that: a battery piece 1 and two flexible welding strips 2 connected with the positive electrode and the negative electrode of the battery piece 1 can form a battery piece unit 4. When the lower surface of the first cell unit 4 is a negative electrode, the upper surface of the second cell unit 4 is a positive electrode.
In specific implementation, the main gate electrode in the cell 1 can be arranged in various embodiments. For example, two surfaces of each cell 1 may be provided with a plurality of main gate electrodes arranged in parallel and the number of the flexible solder strips 2 matching with the number of the main gate electrodes. Further, the first segment 201 of the flexible solder strip 2 is soldered to the main gate electrode.
In specific implementation, the number of the main gate electrodes can be set in various embodiments. For example, 2 to 15 flexible solder strips 2 may be welded to both surfaces of the battery piece 1.
In specific implementation, in order to reduce poor subfissure after the assembly is laminated and increase enterprise benefits together with the flexible solder strip 2, as shown in fig. 1 and 3, the edge and the side wall of the battery piece 1 may be further provided with an insulating layer 3 as a buffer. Furthermore, the insulating layer 3 can be made of a high-temperature-resistant insulating material, so that insulating and buffering effects can be achieved, and the lamination yield of the assembly is effectively improved.
In particular implementations, the thickness of the insulating layer 3 may be provided in a variety of embodiments. For example, the thickness of the insulating layer 3 is smaller than the thickness of the flexible solder strip 2.
In particular implementations, the shape of the second section 202 of the flexible solder strip 2, when provided, can have a variety of embodiments. For example, as shown in fig. 2, in order to further reduce the distance between the welding positions of the battery pieces 1, the second section 202 of the flexible welding strip 2 may be flat and have 90 ° bent edges and side walls that are attached to the surface of the battery pieces 1. Meanwhile, the flat structure is also beneficial to improving the welding area between the two flexible welding strips 2 and improving the connection stability. Further, the thickness of the second section 202 may be smaller than the thickness of the flexible solder strip 2 body, i.e. the first section 201 of the flexible solder strip 2 has a first thickness and the second section 202 has a second thickness smaller than the first thickness. Still further, the thickness of the second segment 202 may be less than or equal to 200 microns.
The utility model also provides a photovoltaic module, photovoltaic module includes photovoltaic cell piece array. In a specific implementation, as shown in fig. 4, the photovoltaic module may include a glass substrate 5, a first adhesive film layer 6, a photovoltaic cell array 7, a second adhesive film layer 8, and a back sheet 9, which are sequentially stacked from top to bottom.
To sum up, the utility model provides a photovoltaic cell piece array, including a plurality of battery piece units that constitute by battery piece and flexible conductive metal solder strip, battery piece upper surface and lower surface distribution electrode owner bars, every electrode owner bars of battery piece all have a flexible solder strip laminating to connect to just can form series circuit through the welding of flexible solder strip for two adjacent battery pieces, the second section length in flexible solder strip is located the piece interval department of two adjacent battery pieces. The two adjacent photovoltaic cell arrays are welded through the flexible welding strips, the cell interval generated by bending is reduced, the density of the assembly is increased, and the power generation efficiency of the assembly is effectively improved.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A photovoltaic cell array is characterized in that the photovoltaic cell array comprises a plurality of cells (1) and flexible solder strips (2) matched with the cells (1), wherein,
the polarity of the upper surface and the lower surface of each battery piece (1) is different, main grid electrodes are arranged on the upper surface and the lower surface of each battery piece, each flexible welding strip (2) comprises a first section and a second section (202) connected with one end of the first section (201), the first sections (201) are attached to the main grid electrodes of the battery pieces (1), the second sections (202) are attached to the surface edges and the side walls of the battery pieces, and the second sections (202) of the two adjacent battery piece side walls can be attached and welded.
2. The photovoltaic cell array according to claim 1, wherein a plurality of main grid electrodes arranged in parallel and the number of the flexible solder strips (2) matched with the main grid electrodes are arranged on both sides of each cell (1).
3. The array according to claim 2, characterized in that the first section (201) of the flexible solder strip (2) is soldered to the main gate electrode.
4. The photovoltaic cell array according to claim 3, wherein 2 to 15 flexible solder strips (2) are soldered to both sides of the cell sheet (1).
5. The array according to claim 1, characterized in that the surface edges and the side walls of the cell sheet (1) are provided with an insulating layer (3).
6. The array according to claim 5, characterized in that the thickness of the insulating layer (3) is smaller than the thickness of the flexible solder ribbon (2).
7. The photovoltaic cell array according to claim 1, wherein the second section (202) of the flexible solder ribbon (2) is flat and has a surface edge and a side wall which are bent to fit the cell (1).
8. The array according to claim 7, characterized in that the first section (201) of the flexible solder ribbon (2) has a first thickness and the second section (202) has a second thickness smaller than the first thickness.
9. The array of photovoltaic cells of claim 8, wherein the second segment (202) has a thickness of less than or equal to 200 microns.
10. A photovoltaic module, characterized in that it comprises an array (7) of photovoltaic cells according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121501965.0U CN214705955U (en) | 2021-07-02 | 2021-07-02 | Photovoltaic cell array and photovoltaic module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121501965.0U CN214705955U (en) | 2021-07-02 | 2021-07-02 | Photovoltaic cell array and photovoltaic module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214705955U true CN214705955U (en) | 2021-11-12 |
Family
ID=78556226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121501965.0U Active CN214705955U (en) | 2021-07-02 | 2021-07-02 | Photovoltaic cell array and photovoltaic module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214705955U (en) |
-
2021
- 2021-07-02 CN CN202121501965.0U patent/CN214705955U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 314417 No. 1 Jisheng Road, Jiaxing City, Zhejiang Province Patentee after: Zhengtai Xinneng Technology Co.,Ltd. Address before: 314417 No. 1 Jisheng Road, Jiaxing City, Zhejiang Province Patentee before: HAINING ASTRONERGY TECHNOLOGY Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 314417 No. 1 Jisheng Road, Jiaxing City, Zhejiang Province Patentee after: Zhengtai Xinneng Technology Co.,Ltd. Address before: 314417 No. 1 Jisheng Road, Jiaxing City, Zhejiang Province Patentee before: Zhengtai Xinneng Technology Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |