CN210897315U - Battery string and photovoltaic module with same - Google Patents
Battery string and photovoltaic module with same Download PDFInfo
- Publication number
- CN210897315U CN210897315U CN201922388075.2U CN201922388075U CN210897315U CN 210897315 U CN210897315 U CN 210897315U CN 201922388075 U CN201922388075 U CN 201922388075U CN 210897315 U CN210897315 U CN 210897315U
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- China
- Prior art keywords
- battery
- adhesive film
- battery piece
- battery string
- piece
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- 239000002313 adhesive film Substances 0.000 claims abstract description 58
- 229910000679 solder Inorganic materials 0.000 claims abstract description 43
- 238000003466 welding Methods 0.000 abstract description 32
- 238000000034 method Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 5
- 239000003292 glue Substances 0.000 abstract description 5
- 230000007774 longterm Effects 0.000 abstract description 4
- 239000012528 membrane Substances 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 9
- 238000002360 preparation method Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001429 stepping effect Effects 0.000 description 1
Images
Classifications
-
- 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 utility model discloses a battery string and a photovoltaic module with the battery string, wherein the battery string comprises a battery piece and a welding strip connected to the battery piece, and the battery string is also provided with a glue film which is adhered to at least one surface of the battery piece and is positioned on the corresponding surface outside the welding strip; based on the battery string structure provided by the utility model, due to the bonding effect of the adhesive film, the phenomenon of position deviation between the welding strip adhered to one side surface of the adhesive film on the battery piece and the battery piece in the battery string welding and assembling process can be avoided, and the welding yield of the battery string and the stability of the photovoltaic module manufactured by the battery string can be effectively improved; in addition, the adhesive film can also increase the stripping force between the cell and the corresponding solder strip, so that the corresponding photovoltaic module has better reliability in the long-term use process.
Description
Technical Field
The utility model relates to a solar photovoltaic field especially relates to a battery cluster and have photovoltaic module of this battery cluster.
Background
In the assembly process of the battery string, the offset of the welding strip and the peeling force of the welding strip are two major consideration indexes of the assembly quality. Referring to fig. 1, during assembly of a specific battery string, a back side welding strip 22 ', a battery piece 100 ' and a front side welding strip 21 ' need to be sequentially laid on a conveyor belt (not shown), and then the conveyor belt conveys the battery piece to a welding region for welding operation, however, due to the stepping action of the conveyor belt and the pressing pin pressing action of the welding region, positional deviation is easily generated between the back side welding strip 22 ' and the battery piece 100 ', and between the front side welding strip 21 ' and the battery piece 100 ', and further front side welding strip deviation and back side welding strip deviation in a manufacturing process are caused. The welding strip deviation not only influences the appearance of the assembly, but also has certain influence on the long-term reliability of the follow-up manufactured photovoltaic assembly. The conventional method for controlling the solder strip offset is mainly realized by selecting the solder strip with the width larger than the width of the main grid of the battery, but the method cannot fundamentally overcome the problem of the solder strip offset. In addition, based on the prior art, the stripping force of the welding strip relative to the battery piece is difficult to be further improved.
In view of the above, there is a need to provide an improved solution to the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that prior art exists at least, for realizing the above-mentioned utility model purpose, the utility model provides a battery cluster, its concrete design mode as follows.
A battery string comprises a battery piece and a welding strip connected to the battery piece, and further comprises an adhesive film adhered to at least one surface of the battery piece and located on the outer side of the welding strip on the corresponding surface.
Furthermore, the adhesive films are adhered to the two surfaces of the battery piece.
Further, the adhesive film is a transparent adhesive film.
Further, the edge of the adhesive film does not exceed the edge of the battery piece.
Further, the width of the adhesive film perpendicular to the length direction of the battery string is larger than the distance between the outer edges of the two outermost solder strips on the corresponding surfaces of the battery pieces.
Further, the adhesive film is a single-sided adhesive film.
The utility model also provides a photovoltaic module, this photovoltaic module including above the battery cluster.
The utility model has the advantages that: based on the battery string structure provided by the utility model, due to the bonding effect of the adhesive film, the phenomenon of position deviation between the welding strip adhered to one side surface of the adhesive film on the battery piece and the battery piece in the battery string welding and assembling process can be avoided, and the welding yield of the battery string and the stability of the photovoltaic module manufactured by the battery string can be effectively improved; in addition, the adhesive film can also increase the stripping force between the cell and the corresponding solder strip, so that the corresponding photovoltaic module has better reliability in the long-term use process.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic view showing a partial structure of a prior art battery string;
fig. 2 is a schematic diagram of an implementation structure of the battery string of the present invention;
FIG. 3 is a perspective view of the single cell and associated structure shown in FIG. 2;
fig. 4 is a schematic view of a part of the flow of the battery string manufacturing method of the present invention.
In the drawing, 100 is a battery piece, 101 is a first battery piece, 102 is a second battery piece, 200 is a solder strip, 21 is a front solder strip, 22 is a back solder strip, 31 is a front adhesive film, and 32 is a back adhesive film.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely 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 work belong to the protection scope of the present invention.
Referring to fig. 2, the battery string of the present invention includes a battery piece 100 and a solder strip 200 connected to the battery piece 100, and the battery string further has a glue film adhered to at least one surface of the battery piece 100, and the glue film is located outside the solder strip 100 on the corresponding surface of the battery piece. The utility model relates to a photovoltaic module is including the utility model relates to a battery cluster.
As the utility model discloses a preferred, the glued membrane has all been stained with on the both surfaces of battery piece. Referring to fig. 2 and 3, the battery string provided in the present embodiment has a front-side solder tape 21 connected to the front side of the battery piece 100 and a back-side solder tape 22 connected to the back side of the battery piece 100, and the adhesive films include a front-side adhesive film 31 located on the upper side of the front-side solder tape 21 and adhered to the front side of the battery piece 100 and a back-side adhesive film 32 located on the lower side of the back-side solder tape 22 and adhered to the back side of the battery piece 100.
As can be easily understood from the drawings, in the implementation process, the front adhesive film 31 may adhesively fix the front solder strip 21 to the front side of the battery piece 100, and the back adhesive film 32 may adhesively fix the back solder strip 22 to the back side of the battery piece 100. Based on this, before the front side bonding tape 21 and the back side bonding tape 22 are welded and fixed on the corresponding surfaces of the battery piece 100, due to the bonding effect of the front side adhesive film 31 and the back side adhesive film 32, the front side bonding tape 21 and the back side bonding tape 22 can be pre-fixed at the positions to be welded, so that the phenomenon of position deviation between the front side bonding tape 21 and the battery piece 100 and between the back side bonding tape 22 and the battery piece 100 in the welding and assembling process of the battery string can be avoided, and the welding yield of the battery string and the stability of the photovoltaic module manufactured by the battery string can be effectively improved.
In addition, because the peeling force between battery piece 100 and the corresponding solder strip can also be increased to front glued membrane 31 and back glued membrane 32, adopting the utility model provides a during battery cluster preparation photovoltaic module, front glued membrane 31 and back glued membrane 32 can be packaged together to photovoltaic module along with battery piece 100, so make corresponding photovoltaic module have better reliability in long-term use.
For avoiding the front glued membrane 31 and the back glued membrane 32 to influence the photic effect of battery piece 100, in concrete implementation, the utility model relates to a front glued membrane 31 is the transparent glue membrane with back glued membrane 32. It is understood that for a single-sided battery, only the front-side adhesive film 31 may be provided as a transparent adhesive film.
The edges of the front adhesive film 31 and the back adhesive film 32 involved in the present invention do not exceed the edge of the battery piece 100. Further, the width of the front adhesive film 31 perpendicular to the length direction of the battery string is greater than the distance between the outer edges of the two outermost front solder strips 21 on the front side of the battery piece 100, and the width of the back adhesive film 32 perpendicular to the length direction of the battery string is greater than the distance between the outer edges of the two outermost back solder strips 22 on the back side of the battery piece 100. Based on this, the front adhesive film 31 and the back adhesive film 32 can be prevented from affecting the subsequent photovoltaic module lamination process, and it can be ensured that all the front solder strips 21 and the back solder strips 22 are adhered and fixed at the corresponding positions.
As a preferred embodiment of the present invention, the front adhesive film 31 and the back adhesive film 32 in the present embodiment are single-sided adhesive films. As can be easily understood, the sticky surfaces of the front adhesive film 31 and the back adhesive film 32 are both disposed toward one side of the battery piece 100, so as to realize corresponding sticking actions; the surfaces of the front adhesive film 31 and the back adhesive film 32 departing from the battery piece 100 are not sticky, so that the problem that dust is adsorbed to affect the light receiving effect of the battery piece 100 is avoided.
In order to better understand the present invention, the following further provides a manufacturing method for manufacturing the above battery string, and the manufacturing method includes, in combination with the structure of the battery string shown in fig. 2:
laying a back glue film 32; laying the back welding strip 22 above the back adhesive film 32; laying the battery piece 100 above the back welding strip 22 so that the back adhesive film 32 is adhered to the back of the battery piece 100; laying a front welding strip 21 above the battery piece 100; a front adhesive film 31 is laid over the front solder tape 21 so that the front adhesive film 31 adheres to the front surface of the battery sheet 100.
In concrete implementation process, the battery cluster is including a plurality of battery pieces 100 that concatenate in proper order, for better understanding the utility model discloses, two battery pieces 100 that this embodiment used adjacent setting are right the utility model relates to a battery cluster manufacturing method does further describe.
As shown in fig. 2 and fig. 3, the battery piece 100 according to the present embodiment includes a first battery piece 101 and a second battery piece 102 disposed adjacent to each other, wherein a front solder strip 21 connected to the first battery piece 101 and a back solder strip 22 connected to the second battery piece 102 are integrally formed, and the integrally formed front solder strip 21 and back solder strip 22 form an elongated solder strip 200. For realizing continuous non-interference laying of each part of the battery string, the utility model relates to a manufacturing method further comprises: before the front-side solder strips 21 corresponding to the first battery piece 201 are laid, the back adhesive film 32 corresponding to the second battery piece 102 is laid at a position corresponding to the second battery piece 102.
In the present embodiment, since the front solder tape 21 connected to the first battery piece 101 and the back solder tape 22 connected to the second battery piece 102 are integrally formed, when laying the front solder tape 21 corresponding to the first battery piece 201, it is equivalent to simultaneously laying the back solder tape 22 corresponding to the second battery piece 102, and the above preparation method can ensure that the back adhesive film 32 and the back solder tape 22 matched with the second battery piece 102 have a proper laying sequence.
Further, as a preferred embodiment of the preparation method of the present invention, the step of laying the front adhesive film 31 corresponding to the first battery piece 101 is located before the step of laying the second battery piece 102. Thus, when the second battery piece 102 is laid, the position deviation between the upper front surface solder strip 21 and the first battery piece 101 of the first battery piece 101 caused by the pressing of the second battery piece 102 on the lower back surface solder strip 22 can be avoided.
Based on the above, the specific sequence of laying the first cell 101, the second cell 102 and the related structures in this embodiment can be referred to as shown in fig. 4, which includes: laying a back adhesive film 32 corresponding to the first battery piece 101; laying a back welding strip 22 corresponding to the first battery piece 101; laying a first battery piece 101; laying a back adhesive film 32 corresponding to the second battery piece 102; laying a front welding strip 21 corresponding to the first battery piece 101 (corresponding to laying a back welding strip 22 corresponding to the second battery piece 102 at the same time); paving a front adhesive film 31 corresponding to the first battery piece 101; and laying a second battery piece 102.
It is understood that, in the manufacturing process of the battery string, referring to fig. 2, the second battery piece 102 corresponds to the first battery piece with respect to the battery piece 100 on the left side. The layout manner of the front solder strip 21 and the front adhesive film 31 corresponding to the second battery piece 102 can refer to the layout manner of the front solder strip 21 and the front adhesive film 31 above the first battery piece 101, which is not described in detail.
The utility model relates to a manufacturing method still includes the step of welding front side solder strip 21 and back side solder strip 22 to corresponding battery piece 100 front side or back respectively. This step is usually performed after the laying operation of all the cells 100 in the battery string is completed.
It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.
The above list of details is only for the practical implementation of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the technical spirit of the present invention should be included in the scope of the present invention.
Claims (7)
1. The battery string comprises battery pieces and solder strips connected to the battery pieces, and is characterized by further comprising an adhesive film adhered to at least one surface of each battery piece and positioned on the outer side of the corresponding surface of each solder strip.
2. The battery string according to claim 1, wherein the adhesive film is adhered to both surfaces of the battery sheet.
3. The battery string according to claim 1, wherein the adhesive film is a transparent adhesive film.
4. The battery string according to claim 1, wherein the edge of the adhesive film does not extend beyond the edge of the battery piece.
5. The battery string according to claim 4, wherein the width of the adhesive film perpendicular to the length direction of the battery string is greater than the distance between the outer edges of the two outermost solder strips on the corresponding surfaces of the battery pieces.
6. The battery string according to any one of claims 1 to 5, wherein the adhesive film is a single-sided adhesive film.
7. A photovoltaic module comprising a string according to any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922388075.2U CN210897315U (en) | 2019-12-26 | 2019-12-26 | Battery string and photovoltaic module with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922388075.2U CN210897315U (en) | 2019-12-26 | 2019-12-26 | Battery string and photovoltaic module with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210897315U true CN210897315U (en) | 2020-06-30 |
Family
ID=71315445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922388075.2U Active CN210897315U (en) | 2019-12-26 | 2019-12-26 | Battery string and photovoltaic module with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210897315U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112289891A (en) * | 2020-10-22 | 2021-01-29 | 无锡奥特维科技股份有限公司 | Battery string production method |
| CN112289889A (en) * | 2020-10-20 | 2021-01-29 | 无锡奥特维科技股份有限公司 | Battery string production method |
| CN112599641A (en) * | 2020-12-18 | 2021-04-02 | 无锡奥特维科技股份有限公司 | Battery string production method |
| CN113037210A (en) * | 2021-03-05 | 2021-06-25 | 浙江晶科能源有限公司 | Battery string structure, photovoltaic module and manufacturing method of photovoltaic module |
| CN114068734A (en) * | 2021-11-11 | 2022-02-18 | 任佳新 | Manufacturing method of photovoltaic cell assembly |
| CN114759111A (en) * | 2020-12-29 | 2022-07-15 | 苏州阿特斯阳光电力科技有限公司 | Photovoltaic module and manufacturing method thereof |
-
2019
- 2019-12-26 CN CN201922388075.2U patent/CN210897315U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112289889A (en) * | 2020-10-20 | 2021-01-29 | 无锡奥特维科技股份有限公司 | Battery string production method |
| CN112289891A (en) * | 2020-10-22 | 2021-01-29 | 无锡奥特维科技股份有限公司 | Battery string production method |
| CN112599641A (en) * | 2020-12-18 | 2021-04-02 | 无锡奥特维科技股份有限公司 | Battery string production method |
| CN112599641B (en) * | 2020-12-18 | 2022-12-20 | 无锡奥特维科技股份有限公司 | Battery string production method |
| CN114759111A (en) * | 2020-12-29 | 2022-07-15 | 苏州阿特斯阳光电力科技有限公司 | Photovoltaic module and manufacturing method thereof |
| CN113037210A (en) * | 2021-03-05 | 2021-06-25 | 浙江晶科能源有限公司 | Battery string structure, photovoltaic module and manufacturing method of photovoltaic module |
| US11362226B1 (en) | 2021-03-05 | 2022-06-14 | Zhejiang Jinko Solar Co., Ltd. | Solar cell string, photovoltaic module and manufacturing methods therefor |
| CN114068734A (en) * | 2021-11-11 | 2022-02-18 | 任佳新 | Manufacturing method of photovoltaic cell assembly |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 199, deer mountain road, Suzhou high tech Zone, Jiangsu Province Patentee after: CSI Cells Co.,Ltd. Patentee after: Changshu Artes Sunshine Power Technology Co.,Ltd. Patentee after: Atlas sunshine Power Group Co.,Ltd. Address before: No. 199, deer mountain road, Suzhou high tech Zone, Jiangsu Province Patentee before: CSI Cells Co.,Ltd. Patentee before: Changshu Artes Sunshine Power Technology Co.,Ltd. Patentee before: CSI SOLAR POWER GROUP Co.,Ltd. |