CN218730998U - Photovoltaic solder strip and battery string - Google Patents
Photovoltaic solder strip and battery string Download PDFInfo
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- CN218730998U CN218730998U CN202222634095.5U CN202222634095U CN218730998U CN 218730998 U CN218730998 U CN 218730998U CN 202222634095 U CN202222634095 U CN 202222634095U CN 218730998 U CN218730998 U CN 218730998U
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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 provides a photovoltaic solder strip and battery cluster belongs to solar energy component technical field, including the solder strip body, the solder strip body is including the first section that connects gradually, first flat section and second section, the thickness of first flat section all is less than the thickness of first section and the thickness of second section, and the lower terminal surface of first flat section and the bottom surface parallel and level of first section, the up end of first flat section and the up end parallel and level of second section, still be equipped with in the first section and be used for preventing the section of changeing with the crimping complex, the bottom surface of preventing the section of changeing is the cooperation plane, the cooperation plane be used for with the battery piece laminating, the rotation of restriction solder strip body. The utility model provides a pair of photovoltaic solder strip can prevent that the solder strip from appearing rotatoryly at welding process, avoids first flat section slope, and then makes first flat section less to the pressure of battery piece at follow-up lamination in-process, avoids pressing against and splits the battery piece border, reduces latent defect of splitting.
Description
Technical Field
The utility model belongs to the technical field of solar energy component, more specifically say, relate to a photovoltaic solder strip and battery cluster.
Background
Photovoltaic cell piece is connected through welding the area and is formed the solar cell cluster, can realize the power generation effect, and present trade adopts circular welding area, combines the multigrid technique to realize high-efficient output assembly, connects through welding the area between the battery piece, generally is equipped with the determining deviation, and the inside non-battery area of subassembly (in the clearance between two adjacent battery pieces promptly) can't generate electricity, causes the waste in power station place. The stitch welding technology (namely TR technology) is to remove the gap between the battery pieces, and the distance between the overlapping parts of the end parts of two adjacent battery pieces is removed, so that the output efficiency of the assembly is improved, and the site utilization rate of a power station is improved.
In the stitch welding technology, a flat section is arranged in the overlapping area of two adjacent battery pieces of the photovoltaic welding strip, the upper end face and the lower end face of the flat section need to be kept parallel to the plane of the battery when welding, but the welding strip is cylindrical and is easy to rotate in the placing process, so that the flat face of the welding strip is subjected to angle deflection; in addition, in the welding process, due to high welding temperature, the welding strip is also heated to generate certain metal mechanical deformation rotation, so that a certain included angle is often generated between the flat section and the battery plane and is not parallel to each other, the contact area between the flat section and the battery plane is reduced, the pressure between the inclined flat section and the battery contact surface is increased in the subsequent lamination process, the edge of the battery is easily damaged by the welding strip, and the hidden crack defect is caused.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a photovoltaic solder strip aims at solving among the prior art photovoltaic solder strip and takes place the rotation easily in production and lead to photovoltaic module hidden problem of splitting to appear.
In order to achieve the purpose, the utility model adopts the technical proposal that: the utility model provides a photovoltaic solder strip, includes and welds the area body, weld the area body including the first section, first flat section and the second section that connect gradually, the thickness of first flat section all is less than the thickness of first section with the thickness of second section, just the lower terminal surface of first flat section with the bottom surface parallel and level of first section, the up end of first flat section with the up end parallel and level of second section, still be equipped with in the first section and prevent changeing the section, the bottom surface of preventing changeing the section is the cooperation plane, the cooperation plane is used for laminating with the battery piece, the restriction the rotation of welding the area body.
In a possible implementation manner, the rotation-preventing section is of a flat structure, the matching plane is flush with the bottom surface of the first section, and the thickness of the rotation-preventing section is the same as that of the first flat section.
In a possible realization, the thickness of the anti-rotation section has a value between 0.1mm and 0.15 mm.
In one possible embodiment, the first flat section and the anti-rotation section have the same width.
In one possible embodiment, the width of the anti-rotation section is between 0.5mm and 0.9 mm.
In a possible implementation manner, a first connecting inclined surface is arranged between the first section and the first flat section, and an included angle between the first connecting inclined surface and the first flat section is 115-125 degrees; and a second connecting inclined plane is arranged between the second section and the first flat section, and the included angle between the second connecting inclined plane and the first flat section is 115-125 degrees.
In a possible implementation manner, a transition inclined surface is arranged between the anti-rotation section and the first section, and an included angle between the transition inclined surface and the anti-rotation section is 120 °.
In one possible embodiment, the length of the anti-rotation section is smaller than the length of the first flat section.
The utility model provides a pair of photovoltaic solder strip's beneficial effect lies in: compared with the prior art, the utility model relates to a photovoltaic solder strip is in production, snatch and weld the area body and place on the battery piece, the first section of solder strip body is located the up end of battery piece, prevent rotating the section through setting up in the first section, the bottom surface of preventing rotating the section is the cooperation plane, the laminating of cooperation plane is on the battery piece, make prevent rotating the section and form face-to-face contact structure with the battery piece, so can restrict the rotation of welding the area body, on the other hand, at the welding stage, the pressure disk of stringer supports and presses on welding the area body, because prevent rotating the section and be face-to-face contact with the battery piece, prevent rotating the setting of section and make the area of contact grow of welding the area body and battery piece, thereby can make the crimping structural stability of welding area body and battery piece, the restriction welds the area body and warp rotatory at the welding process.
The utility model also provides a battery cluster, including a plurality of battery piece units, every the battery piece unit include two at least battery pieces, and adjacent weld through the aforesaid between the battery piece and take the connection.
In a possible implementation manner, two adjacent battery pieces include a front-end battery piece and a rear-end battery piece, the front-end battery piece is located on the lower end surface of the first flat section, and the rear-end battery piece is located on the upper end surface of the first flat section and the second flat section.
The utility model provides a battery cluster's beneficial effect lies in, compared with the prior art, the foretell solder strip has been used and has been connected, all beneficial effects in the above-mentioned solder strip have, in production, it places on the battery piece to snatch the solder strip body, the first section of solder strip body is located the up end of front end battery piece, prevent changeing the section through setting up on first section, the bottom surface of preventing changeing the section is the cooperation plane, the cooperation plane laminating is on the front end battery piece, make prevent changeing the section and form the face-to-face contact structure with the front end battery piece, so restricted the rotation of solder strip body, on the other hand, in the welding stage, the pressure disk of stringer supports and presses on the solder strip body, because prevent changeing the section and the front end battery piece be face-to-face contact, prevent changeing the section setting up and make the area of contact grow of solder strip body and front end battery piece, thereby can make the crimp structure of solder strip body and front end battery piece stable, restriction solder strip body warp rotatoryly at the welding process, avoid first flat section slope, and then make the pressure of first flat section less to the follow-up in follow-up pressure of battery piece, avoid pressing crack and press against the defect of battery piece, reduce.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions 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 schematic structural diagram of a photovoltaic solder strip provided in an embodiment of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 isbase:Sub>A sectional view taken along line A-A of FIG. 1;
fig. 4 is a schematic structural diagram of a battery string according to an embodiment of the present invention;
fig. 5 is a schematic structural view of the tandem welder platen press against the pressure welding belt body provided by the embodiment of the utility model.
Description of reference numerals:
1. a first stage; 2. a second stage; 3. a first flattened section; 31. a first connection slope; 32. a second connection slope; 4. an anti-rotation section; 41. a transition bevel; 5. a front-end cell; 6. a rear cell piece; 7. a cell unit; 8. a series welding machine; 81. other platens; 82. and a second platen.
Detailed Description
In order to make the technical problem, technical solution and beneficial effects to be solved by the present invention more clearly understood, the following description is made in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 to 5, a photovoltaic solder strip provided by the present invention will now be described. The utility model provides a photovoltaic solder strip, including welding the area body, weld the area body including the first section 1 that connects gradually, first flat section 3 and second section 2, the thickness of first flat section 3 all is less than the thickness of first section 1 and the thickness of second section 2, and the lower terminal surface of first flat section 3 and the bottom surface parallel and level of first section 1, the up end of first flat section 3 and the up end parallel and level of second section 2, still be equipped with on the first section 1 and prevent changeing section 4, the bottom surface of preventing changeing section 4 is the cooperation plane, the cooperation plane is used for laminating with the battery piece, the rotation of restriction solder strip body.
The utility model provides a pair of photovoltaic solder strip, compared with the prior art, in production, snatch the solder strip body and place on the battery piece, first section 1 of solder strip body is located the up end of battery piece, prevent section 4 through setting up on first section, the bottom surface of preventing section 4 is the cooperation plane, the laminating of cooperation plane is on the battery piece, make prevent section 4 and battery piece formation face-to-face contact structure, so can restrict the rotation of solder strip body, on the other hand, at the welding stage, the pressure disk of stringer 8 supports and presses on the solder strip body, because prevent section 4 and battery piece for face-to-face contact, prevent setting up of section 4 and make the area of contact grow of solder strip body and battery piece, thereby can make the crimping structural stability of solder strip body and battery piece, the restriction solder strip body is out of shape rotatory at the welding process. The utility model provides a pair of photovoltaic solder strip prevents changeing section 4 through setting up, thereby makes prevent to form face-to-face contact between changeing section 4 and the battery piece and can prevent that the solder strip from appearing rotatoryly in process of production, avoids the 3 slopes of first flat section, and then makes first flat section 3 less to the pressure of battery piece in follow-up lamination process, avoids pressing against the split battery piece border, reduces latent split defect.
In some embodiments, please refer to fig. 1 to 2, the first section 1 and the second section 2 of the photovoltaic solder strip are both strip structures with circular cross sections, a first flat section 3 is connected between the first section 1 and the second section 2, the first flat section 3 is a flat structure, the first flat section 3 has a certain length, a lower end surface of the first flat section 3 is flush with a lower edge of the first section 1, and an upper end surface of the first flat section 3 is flush with an upper edge of the second section 2.
In the embodiment, the first section 1 and the second section 2 are both circular welding strips with the diameter of 0.3mm, the first flat section 3 is a sheet structure with the thickness value of 0.1mm-0.15mm and the width value of 0.5mm-0.9mm, a first connecting inclined plane 31 is connected between the first section 1 and the first flat section 3, the first connecting inclined plane 31 is obliquely arranged towards one side of the first flat section 3 and forms an included angle with the first flat section 3, and the included angle is 115-125 degrees; a second connecting inclined surface 32 is connected between the second section 2 and the first flat section 3, the second connecting inclined surface 32 is obliquely arranged towards one side of the first flat section 3 and forms an included angle with the first flat section 3, and the included angle is 115-125 degrees; through setting up first connection inclined plane 31 and second connection inclined plane 32 for have a changeover portion between the circular structure of first section 1 and second section 2 and the first flat structure, make first section 1, second section 2 and the first flat section 3 be connected steadily.
In some embodiments, referring to fig. 1 to 3, the anti-rotation section 4 is a flat structure and is disposed on an end of the first section 1 close to the first flat section 3, and the anti-rotation section 4 and the first flat section 3 are parallel to each other.
Furthermore, the lower end face of the anti-rotation section 4 is flush with the lower edge of the first section 1, the thickness of the anti-rotation section 4 is the same as that of the first flat section 3, optionally, the thickness of the anti-rotation section 4 is 0.1mm-0.15mm, and the width of the anti-rotation section 4 is 0.5mm-0.9 mm.
In this embodiment, a transition inclined surface 41 is disposed between the anti-rotation section 4 and the first section 1, the transition inclined surface 41 inclines to one side of the anti-rotation section 4, and an included angle of 120 ° is formed between the transition inclined surface 41 and the anti-rotation section 4, so that the structure transition between the first section 1 and the anti-rotation section 4 is stable, and the first section 1 and the anti-rotation section 4 have a certain connection strength before.
In practical application, the anti-rotation section 4 is arranged on the front surface of the battery piece, and in order to reduce the shading area of the anti-rotation section 4, the length of the anti-rotation section 4 is smaller than that of the first flat section 3.
In addition, please refer to fig. 5, in practical application, in order to better prevent the welding strip body from rotating during the operation process, the series welding machine for production operation is improved, specifically, the second pressure plate 82 is arranged on the series welding machine 8, and the second pressure plate 82 is correspondingly arranged above the anti-rotation section 4, during the welding process, the upper end surface and the lower end surface of the anti-rotation section 4 are both flat surfaces, the second pressure plate 82 is pressed against the upper end surface of the anti-rotation section 4, the lower end surface of the anti-rotation section 4 is pressed against the battery piece, and a surface-to-surface contact is formed between the anti-rotation section 4 and the battery piece, the stability of the mechanism of the surface-to-surface contact is good, the welding strip body and the battery piece can be kept relatively fixed, so as to prevent the welding strip body from rotating.
Further, with the increase of the second pressure disk 82 near the working face of the section 4 one end of preventing changeing to set up its terminal surface into circular or rectangle structure, so set up, for the face-to-face contact when making second pressure disk 82 contact with the section 4 of preventing changeing, increased area of contact, improved the stability that second pressure disk 82 supported the pressure welding and took the body.
Further, the length of the second pressing plate 82 is slightly longer than that of the other pressing plates 81, the stringer 8 is adjusted to enable the pressure applied to the second pressing plate 82 to be slightly larger than that of the other pressing plates 81, and therefore in the operation process, the second pressing plate 82 can be enabled to be abutted preferentially on the anti-rotation section 4 to fix the welding strip body, and therefore the overall stability of the welding strip body in the welding operation process is guaranteed.
Referring to fig. 4, the present invention further provides a battery string, which includes a plurality of battery cell units 7, wherein each battery cell unit 7 includes at least two battery cells, and the adjacent battery cells are connected by the welding strip.
Specifically, two adjacent battery pieces include front end battery piece 5 and rear end battery piece 6, and the up end of front end battery piece 5 is connected at the lower terminal surface of first section 1 with first flat section 3, and the lower terminal surface of rear end battery piece 6 is connected be located first flat section 3 with the up end of second section 2, wherein prevent changeing section 4 and connect the up end at front end battery piece 5.
The utility model provides a battery cluster, compared with the prior art, the foretell solder strip has been used and has been connected, all beneficial effects in the above-mentioned solder strip have, in production, it places on front end cell 5 to snatch the solder strip body, first section 1 of solder strip body is located front end cell 5's up end, prevent section 4 through setting up on first section 1, prevent section 4's bottom surface for the cooperation plane and with the bottom surface parallel and level of first section 1, the cooperation plane laminating is on front end cell 5, make prevent section 4 and front end cell 5 formation face-to-face contact structure, so can restrict the rotation of solder strip body, on the other hand, in the welding phase, the pressure disk of stringer 8 supports and presses on the solder strip body, because prevent section 4 and front end cell 5 are face-to-face contact, section 4's setting makes solder strip body and front end cell 5's area grow, thereby can make the crimping structure of solder strip body and front end cell stable, restriction solder strip body is rotatory at the welding process, avoid first flat section 3 slopes, make the hidden defect of preventing pressing and pressing against the crack in follow-up the process less.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a photovoltaic solder strip, includes the solder strip body, the solder strip body is including first section (1), first flat section (3) and second section (2) that connect gradually, the thickness of first flat section (3) all is less than the thickness of first section (1) with the thickness of second section (2), just the lower terminal surface of first flat section (3) with the bottom surface parallel and level of first section (1), the up end of first flat section (3) with the up end parallel and level of second section (2), its characterized in that, still be equipped with on first section (1) and prevent changeing section (4), the bottom surface of preventing changeing section (4) is the cooperation plane, the cooperation plane is used for laminating with the battery piece, the restriction the rotation of solder strip body.
2. The photovoltaic solder strip according to claim 1, characterized in that the anti-rotation section (4) is of a flat structure, the mating plane is flush with the bottom surface of the first section (1), and the thickness of the anti-rotation section (4) is the same as that of the first flat section (3).
3. A photovoltaic solder strip according to claim 2, characterized in that the thickness of the anti-rotation sections (4) has a value comprised between 0.1mm and 0.15 mm.
4. A photovoltaic solder ribbon according to claim 1, characterized in that the first flat section (3) and the anti-rotation section (4) have the same width.
5. Photovoltaic solder strip according to claim 4, characterized in that the width of the anti-rotation section (4) is between 0.5mm and 0.9 mm.
6. The photovoltaic solder strip according to claim 1, characterized in that a first connection bevel (31) is provided between the first section (1) and the first flat section (3), and the angle between the first connection bevel (31) and the first flat section (3) is between 115 ° and 125 °; a second connecting inclined surface (32) is arranged between the second section (2) and the first flat section (3), and the included angle between the second connecting inclined surface (32) and the first flat section (3) is 115-125 degrees.
7. The photovoltaic solder strip according to claim 1, characterized in that a transition bevel (41) is provided between the anti-rotation section (4) and the first section (1), and an included angle between the transition bevel (41) and the anti-rotation section (4) is 120 °.
8. A photovoltaic solder strip according to claim 1, characterized in that the length of the anti-rotation section (4) is less than the length of the first flat section (3).
9. A battery string comprising a plurality of cell units (7), wherein each of said cell units (7) comprises at least two cells, and adjacent cells are connected by a solder ribbon according to any one of claims 1 to 8.
10. The battery string according to claim 9, wherein two adjacent battery pieces comprise a front battery piece (5) and a rear battery piece (6), the front battery piece (5) is located at the lower end faces of the first flat section (1) and the first flat section (3), and the rear battery piece (6) is located at the upper end faces of the first flat section (3) and the second flat section (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222634095.5U CN218730998U (en) | 2022-10-08 | 2022-10-08 | Photovoltaic solder strip and battery string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222634095.5U CN218730998U (en) | 2022-10-08 | 2022-10-08 | Photovoltaic solder strip and battery string |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218730998U true CN218730998U (en) | 2023-03-24 |
Family
ID=85640374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222634095.5U Active CN218730998U (en) | 2022-10-08 | 2022-10-08 | Photovoltaic solder strip and battery string |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218730998U (en) |
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2022
- 2022-10-08 CN CN202222634095.5U patent/CN218730998U/en active Active
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