CN212874508U - Laminated sheet assembly and photovoltaic assembly - Google Patents
Laminated sheet assembly and photovoltaic assembly Download PDFInfo
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- CN212874508U CN212874508U CN202022183901.2U CN202022183901U CN212874508U CN 212874508 U CN212874508 U CN 212874508U CN 202022183901 U CN202022183901 U CN 202022183901U CN 212874508 U CN212874508 U CN 212874508U
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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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Abstract
The utility model discloses a lamination subassembly and photovoltaic module, lamination subassembly include the battery cluster that is formed by the setting of a plurality of battery piece stromatolites and establish at the busbar of the head end of battery cluster and tail end, the battery piece of keeping away from the busbar is equipped with a plurality of first solder strips, first solder strip includes solder strip body and flattening portion, the flattening portion is established at the junction between two adjacent battery pieces, the thickness of flattening portion is less than the thickness of solder strip body; be equipped with a plurality of second on the battery piece that sets up adjacent with the busbar and weld the area, the thickness that the second welded the area is greater than the thickness of flattening portion and equals the thickness of welding the area body, and a tip of second welded the area outwards extends to on the busbar. The utility model provides a first welding strip between a plurality of battery pieces far away from the bus bar is provided with a flattening part, so that fragments during lamination can be reduced; the bus bar is not easy to twist when the second welding strip is laminated on the battery piece adjacent to the bus bar, and the fragments of the battery piece adjacent to the bus bar can be reduced, so that the quality of the photovoltaic module is improved.
Description
Technical Field
The utility model relates to a photovoltaic module field especially relates to a lamination subassembly and photovoltaic module.
Background
Photovoltaic power generation is a technology for directly converting light energy into electric energy by utilizing the photovoltaic effect of a semiconductor, and the core unit of the technology is a photovoltaic module. The laminated sheet assembly is one type, and the battery sheets are connected seamlessly. In the current production process, by using a solder strip flattening technology, the part of the cell sheet connected with the cell sheet needs to be flattened to reduce fragments in lamination, but after the solder strip on the cell sheet near the bus bar is flattened, the solder strip at the flattened part is thinner, the solder strip is easier to distort in welding, and the number of fragments of the cell sheet adjacent to the bus bar is increased.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that exists among the prior art, the utility model provides a lamination subassembly and photovoltaic module, technical scheme is as follows:
the utility model provides a laminated assembly, it includes the battery cluster that is formed by the setting of a plurality of battery piece stromatolites and sets up the busbar at the head end of battery cluster and tail end, is provided with a plurality of first solder strips on keeping away from the battery piece of busbar, first solder strip includes the solder strip body and sets up the flattening portion on the solder strip body, the flattening portion sets up the junction between two adjacent battery pieces, the thickness of flattening portion is less than the thickness of solder strip body; and a plurality of second welding strips are arranged on the battery piece adjacent to the bus bar, each second welding strip is of a long strip-shaped structure, the thickness of each second welding strip is greater than that of the corresponding flattening part and equal to that of the corresponding welding strip body, and one end part of each second welding strip extends outwards to the bus bar.
Further, the thickness of the flattening part ranges from 0.1 mm to 0.17 mm.
Further, the length of the flattening part ranges from 4 mm to 6 mm.
Further, the length direction of the flattening portion is consistent with the length direction of the welding strip body.
Further, the vertical section of the flattening part is of a square structure.
Further, the vertical sections of the welding strip body and the second welding strip are both circular structures.
Further, the diameter range of the welding strip body and the diameter range of the second welding strip are both 0.28-0.32 mm.
Further, a plurality of first solder strips are evenly distributed on the battery piece far away from the bus bar, and a plurality of second solder strips are evenly distributed on the battery piece adjacent to the bus bar.
The utility model also provides a photovoltaic module, it includes the multiunit the lamination subassembly.
The utility model provides a beneficial effect that technical scheme brought as follows:
the utility model provides a laminated assembly, the first welding strip of the junction between the battery piece and the battery piece far away from the bus bar is provided with the flattening part, so that fragments during lamination can be reduced; the second on the battery piece that sets up adjacent with the busbar welds the area and just has certain thickness for even structure, welds the difficult distortion in area when second welds area and busbar welding lamination to reducible battery piece that sets up adjacent with the busbar, and then promote photovoltaic module quality.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a perspective view of a battery plate and a solder strip disposed adjacent to a bus bar of a lamination assembly provided by an embodiment of the present invention;
fig. 2 is a perspective view of a battery plate and a solder strip away from a bus bar of a laminated assembly according to an embodiment of the present invention.
Wherein the reference numerals include: 1-battery piece, 2-bus bar, 3-welding strip body, 4-flattening part and 5-second welding strip.
Detailed Description
In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, apparatus, article, or device that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or device.
In an embodiment of the utility model, a lamination subassembly is provided, the concrete structure refers to fig. 1 and fig. 2, and it includes a lamination subassembly, and it includes the battery cluster that is formed by the setting of a plurality of 1 laminatings of battery piece and sets up the busbar 2 of battery cluster tip, every two adjacent 1 battery pieces pile up and form the battery cluster, the battery cluster has head end and tail end, and its head end and tail end all are provided with busbar 2, with keep a certain interval between the battery piece 1 that busbar 2 adjacent set up and busbar 2, the busbar is rectangular bar-shaped structure, the extending direction of battery piece with the length direction of busbar is parallel.
The first welding strip has the following specific structure: referring to fig. 2, a plurality of first solder strips are arranged on a cell 1 away from a bus bar 2 (i.e. a cell not close to the bus bar 2, and no bus bar is arranged on each of the left side and the right side of the cell), each first solder strip comprises a solder strip body 3 and a flattened portion 4 arranged on the solder strip body 3, the thickness of the flattened portion 4 is smaller than that of the solder strip body 3, and the flattened portion 4 is arranged at the joint between two adjacent cells 1. Every two adjacent battery pieces in the lamination assembly are connected in a seamless mode, the connected portion is provided with a flattening portion, the thickness of the portion of the first welding strip is reduced to reduce fragments generated in lamination (after glass, battery strings and a back plate are assembled, the fragments are laminated), and if the flattening portion is not arranged, the probability of the fragments is increased in lamination. The length direction of the flattening part 4 is preferably consistent with that of the welding strip body 3, and processing operation is facilitated.
The second solder strip 5 has the following specific structure: referring to fig. 1, a plurality of second solder strips 5 are arranged on the battery piece 1 adjacent to the bus bar 2, the second solder strips 5 are in a strip-shaped structure, the thickness of the second solder strips 5 is greater than that of the flattening portion 4 and equal to that of the solder strip body 3, and one end portions of the second solder strips 5 extend out and extend onto the bus bar 2. The second solder strip 5 is of a uniform structure without a flattened portion provided thereon. The battery piece 1 adjacent to the bus bar 2 is provided with a first end part and a second end part, the first end part needs to be welded with the battery piece far away from the bus bar 2 in a stacking mode (a second welding strip is arranged above the battery piece), the second welding strip extends from the first end part to the second end part and is welded with the bus bar, a certain distance is kept between the battery piece 1 adjacent to the bus bar 2 and the bus bar 2, the second end part of the battery piece 1 adjacent to the bus bar 2 does not need to be laminated with another battery piece, the second welding strip 5 is not provided with a flattening part, integral lamination fragments cannot be caused, the thickness of the joint of the second welding strip 5 and the bus bar is large, the welding strip is not easy to distort when the second welding strip 5 is welded with the bus bar, and fragments of the battery piece 1 adjacent to the bus bar 2 can be reduced. The length direction of the second solder strip is preferably perpendicular to the length direction of the bus bar.
The thickness range of the flattening part 4 is 0.1-0.17mm, and the degradation rate of V-crack (V-shaped crack) is reduced. The length range of the flattening part 4 is 4-6mm, and fragments caused by tin return can be reduced.
The vertical section of the flattening part 4 is of a square structure. The vertical cross sections of the welding strip body 3 and the second welding strip 5 are both circular structures, namely the welding strip body 3 and the second welding strip 5 are cylindrical structures. The diameter ranges of the welding strip body 3 and the second welding strip 5 are both 0.28-0.32 mm.
The utility model also provides a photovoltaic module, it includes the multiunit if lamination subassembly.
The utility model provides a laminated assembly, the first welding strip at the junction between the battery plate far away from the bus bar and the battery plate is provided with a flattening part to reduce fragments during lamination; the second on the battery piece that sets up adjacent with the busbar welds the area and just has certain thickness for even structure, welds the difficult distortion in area when second welds area and busbar welding lamination to reducible battery piece that sets up adjacent with the busbar, and then promote photovoltaic module quality.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (9)
1. A laminated sheet assembly is characterized by comprising a battery string formed by a plurality of battery sheets (1) in a laminated mode, and a plurality of first welding strips are arranged on the battery sheets (1) of bus bars (2) arranged at the head end and the tail end of the battery string, which are far away from the bus bars (2), wherein each first welding strip comprises a welding strip body (3) and a flattening portion (4) arranged on the welding strip body (3), the flattening portions (4) are arranged at the connection positions between every two adjacent battery sheets (1), and the thickness of each flattening portion (4) is smaller than that of the welding strip body (3); with be provided with a plurality of second on the battery piece (1) that busbar (2) are adjacent to be set up and weld area (5), area (5) are long bar-type texture is welded to the second, the thickness that area (5) are welded to the second is greater than the thickness of flattening portion (4) just equals the thickness of welding area body (3), a tip of area (5) is welded to the second outwards extends to on busbar (2).
2. The lamination assembly according to claim 1, characterized in that the thickness of the flattened portion (4) ranges from 0.1 to 0.17 mm.
3. The lamination assembly according to claim 1, characterized in that the length of the flattened portion (4) ranges from 4 to 6 mm.
4. The lamination assembly according to claim 1, characterized in that the length direction of the flattened portion (4) coincides with the length direction of the solder strip body (3).
5. The lamination assembly according to claim 1, characterized in that the vertical section of the flattened portion (4) is of a square configuration.
6. The lamination assembly according to claim 1, characterized in that the vertical section of the solder strip body (3) and the second solder strip (5) is of circular configuration.
7. The lamination assembly according to claim 6, characterized in that the solder strip body (3) and the second solder strip (5) each have a diameter in the range of 0.28-0.32 mm.
8. The lamination assembly according to claim 1, characterized in that a plurality of first solder strips are evenly distributed on the cell plates (1) remote from the bus bars (2) and a plurality of second solder strips (5) are evenly distributed on the cell plates (1) arranged adjacent to the bus bars (2).
9. A photovoltaic module comprising a plurality of sets of the laminate assembly defined in any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022183901.2U CN212874508U (en) | 2020-09-29 | 2020-09-29 | Laminated sheet assembly and photovoltaic assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022183901.2U CN212874508U (en) | 2020-09-29 | 2020-09-29 | Laminated sheet assembly and photovoltaic assembly |
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| Publication Number | Publication Date |
|---|---|
| CN212874508U true CN212874508U (en) | 2021-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022183901.2U Active CN212874508U (en) | 2020-09-29 | 2020-09-29 | Laminated sheet assembly and photovoltaic assembly |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115632092A (en) * | 2022-12-20 | 2023-01-20 | 晶科能源(海宁)有限公司 | Photovoltaic module and method for manufacturing same |
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2020
- 2020-09-29 CN CN202022183901.2U patent/CN212874508U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115632092A (en) * | 2022-12-20 | 2023-01-20 | 晶科能源(海宁)有限公司 | Photovoltaic module and method for manufacturing same |
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