CN213340394U - Photovoltaic module and solder strip - Google Patents
Photovoltaic module and solder strip Download PDFInfo
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- CN213340394U CN213340394U CN202022406056.0U CN202022406056U CN213340394U CN 213340394 U CN213340394 U CN 213340394U CN 202022406056 U CN202022406056 U CN 202022406056U CN 213340394 U CN213340394 U CN 213340394U
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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 photovoltaic module and solder strip, photovoltaic module are including welding area, first battery piece and second battery piece, and first battery piece and second battery piece are connected through welding the area, weld the area and include: the battery pack comprises a first connecting section, a first transition section and a second connecting section, wherein the first connecting section is connected with the front surface of a first battery piece, and the orthographic projection of at least one direction of the first transition section is trapezoidal; and the second connecting section is connected with the back surface of the second battery piece, and the first transition section is connected between one end of the first connecting section and one end of the second connecting section. According to the utility model discloses a photovoltaic module, the orthographic projection of at least one direction of first changeover portion is trapezoidal, can be convenient for make to weld the height difference that takes the adaptation to connect after first battery piece and second battery piece, and mechanical properties is good, has improved the reliability of welding the area, simultaneously, can improve the steadiness between welding area and the battery piece.
Description
Technical Field
The utility model belongs to the technical field of the photovoltaic module technique and specifically relates to a photovoltaic module and solder strip is related to.
Background
In the correlation technique, photovoltaic module connects two adjacent battery pieces through welding the area, and the one end in welding the area is connected in one of them battery piece openly, and the other end in welding the area is connected in the back of another battery piece wherein, can make like this to have the difference in height between the setting position at the both ends in welding the area, so, how to guarantee to weld the structural reliability in area and become the problem of treating urgently.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the utility model is to provide a photovoltaic module, structural reliability is good.
The utility model also provides a weld the area, weld linking up of taking a plurality of parts smooth, structural reliability is good.
According to the utility model discloses photovoltaic module, photovoltaic module includes solder strip, first battery piece and second battery piece, first battery piece with the second battery piece passes through the solder strip is connected, the solder strip includes: the first connecting section is connected with the front surface of the first battery piece, and the orthographic projection of at least one direction of the first transition section is trapezoidal; and the second connecting section is connected with the back surface of the second battery piece, and the first transition section is connected between one end of the first connecting section and one end of the second connecting section.
According to the utility model discloses photovoltaic module, the orthographic projection of at least one direction of first changeover portion is trapezoidal, can be convenient for make to weld the height difference of taking the adaptation to connect after first battery piece and second battery piece, and mechanical properties is good, has improved the reliability of welding the area, simultaneously, can improve the steadiness between welding area and the battery piece.
In some embodiments, a bottom surface of the first connection section is not coplanar with a bottom surface of the first transition section; and/or the bottom surface of the second connecting section is not coplanar with the bottom surface of the first transition section.
In some embodiments, the first connection section has a cross section in a vertical direction that is circular or polygonal.
In some embodiments, the height of the first connecting section is greater than the height of the second connecting section; and/or the width of the second connecting section is greater than the width of the first connecting section.
In some embodiments, the second connecting section is a flat plate having an arcuate section connected between a top plate and a bottom plate of the flat plate.
In some embodiments, the peripheral wall surface of the first transition segment comprises at least one arcuate surface, the middle of the arcuate surface bulging toward the center of the first transition segment.
In some embodiments, the first transition section has a length of 0.2mm to 5 mm.
In some embodiments, the weld bead further includes a second transition segment connected to the other end of the first connection segment, the second transition segment being of the same configuration as the first transition segment and extending in an opposite direction.
In some embodiments, the first transition section is disposed on the front side of the first cell piece or the first transition section is disposed between the first cell piece and the second cell piece.
According to the utility model discloses weld area, include: a first connection section; a first transition section, wherein the orthographic projection of at least one direction of the first transition section is a trapezoid; and the first transition section is connected between one end of the first connecting section and one end of the second connecting section.
According to the utility model discloses weld the area, the orthographic projection of at least one direction of first changeover portion is trapezoidal to play the effect of transition, guaranteed the smoothness nature of the linking of a plurality of parts of welding the area, and can be convenient for make weld the difference in height at area adaptation both ends, mechanical properties is good, has improved the reliability of welding the area.
In some embodiments, a bottom surface of the first connection section is not coplanar with a bottom surface of the first transition section; and/or the bottom surface of the second connecting section is not coplanar with the bottom surface of the first transition section.
In some embodiments, the peripheral wall surface of the first transition segment comprises at least one arcuate surface, the middle of the arcuate surface bulging toward the center of the first transition segment.
In some embodiments, the weld bead further includes a second transition segment connected to the other end of the first connection segment, the second transition segment being of the same configuration as the first transition segment and extending in an opposite direction.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a front view of a weld bead according to an embodiment of the present invention;
FIG. 2 is a top view of the solder strip of FIG. 1;
FIG. 3 is a perspective view of a weld bead according to an embodiment of the present invention;
FIG. 4 is a perspective view of a weld bead according to an embodiment of the present invention;
fig. 5 is a front view of a photovoltaic module according to an embodiment of the present invention;
fig. 6 is a front view of a photovoltaic module according to an embodiment of the present invention.
Reference numerals:
a solder strip 100; a first connection section 10; a first transition section 20; an arcuate surface 21;
a second connection section 30; a second transition section 40;
a photovoltaic module 200; a first cell sheet 210; a second cell 220; and a third cell sheet 230.
Detailed Description
A photovoltaic module 200 according to an embodiment of the present invention is described below with reference to fig. 1-6, including: solder strip 100, first cell piece 210 and second cell piece 220.
As shown in fig. 5 and 6, the solder strip 100 includes a first connection section 10, a first transition section 20, and a second connection section 30, the first battery piece 210 and the second battery piece 220 are connected by the solder strip 100, and the first connection section 10 is connected to the front surface of the first battery piece 210, so that the first connection section 10 can reflect light. The second connection segment 30 is connected to the rear surface of the second cell piece 220, and the first transition segment 20 is connected between one end of the first connection segment 10 and one end of the second connection segment 30.
As shown in fig. 1 and 2, the orthographic projection of at least one direction of the first transition section 20 is a trapezoid, and the first transition section 20 can be connected between the first connection section 10 and the second connection section 30 to play a role of transition, so that the height difference of the positions between the first connection section 10 and the second connection section 30 can be adapted, and the reliability of the solder strip 100 is ensured. Meanwhile, the connection between the welding strip 100 and the battery piece can be ensured to be stable.
The orthographic projection of the first transition section 20 may be trapezoidal in one or more directions, for example, fig. 1 may be a front view of the welding strip 100 according to an embodiment of the present invention, and the orthographic projection of the first transition section 20 in the up-down direction shown in fig. 1 may be trapezoidal, or the orthographic projection of the first transition section 20 in the left-right direction shown in fig. 1 may be trapezoidal, or fig. 2 may be a top view of the welding strip 100 according to an embodiment of the present invention, and the orthographic projection in the front-back direction shown in fig. 2 may be trapezoidal, and the orthographic projection may be isosceles trapezoid or unequal isosceles trapezoid, such as a right trapezoid, which is not limited herein. For another example, when the solder strip 100 is connected to a cell, the orthographic projection on the cell is an isosceles trapezoid.
According to the utility model discloses photovoltaic module 200, the orthographic projection of at least one direction of first changeover portion 20 is trapezoidal, can be convenient for make weld take 100 adaptation to connect the difference in height after first battery piece 210 and second battery piece 220, and mechanical properties is good, has improved the reliability of welding taking 100, simultaneously, can improve the steadiness between welding taking 100 and the battery piece.
In some embodiments, in conjunction with fig. 1, the bottom surface of the first connection section 10 is not coplanar with the bottom surface of the first transition section 20; and/or the bottom surface of the second connector segment 30 is not coplanar with the bottom surface of the first transition segment 20. Here, the "bottom surface" refers to a surface like the lower end of fig. 1. So set up, can adapt to setting up the position difference in height between first linkage segment 10 and the second linkage segment 30 better, guarantee to weld the reliability of taking 100, simultaneously, the processing of being convenient for. For example, the bottom surfaces of the first connecting section 10 and the second connecting section 30 may be planar and coplanar, and the bottom surface of the first transition section 20 may be in various shapes that are not coplanar with the bottom surface of the first connecting section 10, so that the arrangement can be more easily adapted to the height difference between the first connecting section 10 and the second connecting section 30, and the reliability of the photovoltaic module 200 is improved.
Of course, in other embodiments, the bottom surface of the first connection section 10 and the bottom surface of the first transition section 20 may be coplanar, and the bottom surface of the second connection section 30 and the bottom surface of the first transition section 20 may also be coplanar to facilitate electrical conduction. The orthographic projection of the first transition section 20 may be a right trapezoid, and a face of the first transition section 20 facing the battery plate is a right-angled face of the trapezoid.
According to the utility model discloses a some embodiments, as shown in fig. 3 and fig. 4, the cross section along vertical direction of first linkage segment 10 is circular, and then can be convenient for process, and the rate of sheltering from simultaneously is low, and the reflectivity is high, is convenient for reflect partial light to the battery piece, has improved the utilization ratio of light. Or the cross section of the first connecting section 10 in the vertical direction is a polygon, which is not limited herein.
In some embodiments, as shown in fig. 1 and 2, the width of the second connector segment 30 is greater than the width of the first connector segment 10. Here, the "width" refers to a dimension in the front-rear direction of fig. 2, and the width of the first connecting section 10 is set to be small, so that the first battery piece 210 is shielded less and the reflectivity of the first battery piece 210 is increased. And/or the height of the first connecting section 10 is greater than that of the second connecting section 30, where "height" refers to the dimension in the up-down direction as shown in fig. 1, so that it is possible to facilitate the process of accommodating the small-pitch battery sheets and the lamination. For example, the width of the second connection section 30 is greater than the width of the first connection section 10, and the height of the first connection section 10 is greater than the height of the second connection section 30, so that the first connection section 10 and the second connection section 30 have the same cross-sectional area, and the processing can be facilitated.
In some embodiments, as shown in fig. 3 and 4, the second connecting section 30 is a flat plate to facilitate the mounting connection with the second battery piece 220, which can ensure the compatibility with the small-pitch battery piece and lamination process. Be connected with the segmental arc between the roof of flat slab and the bottom plate, the segmental arc can play the effect of transition to guarantee structural reliability, simultaneously, can be convenient for process, and can improve the mechanical properties of second linkage segment 30, dispersion stress. For example, the middle of the arcuate segment is convex away from the center of the solder strip 100.
In some embodiments, with reference to fig. 3 and 4, the peripheral wall of the first transition section 20 includes at least one arc-shaped surface 21, and the middle of the arc-shaped surface 21 protrudes toward the center of the first transition section 20, so that partial light can be reflected to the cell, and the utilization rate of the light is improved. Of course, in other embodiments, the middle of the arcuate surface 21 may also be convex away from the center of the first transition section 20. Alternatively, the peripheral wall surface of the first transition section 20 may be planar.
In some examples, the length of the first transition section 20 may be 0.2mm to 5mm, so that, on one hand, the mechanical property of the solder strip 100 may be ensured, the structural stability may be improved, and the processing may be facilitated, and on the other hand, the overlong distance between the first connection section 10 and the second connection section 30 may be avoided, so as to reduce the distance between two adjacent battery pieces, and improve the light utilization rate of the battery pieces. Here, "length" refers to the dimension in the left-right direction as shown in fig. 1. For example, the first transition section 20 has a length of 0.5mm to 3 mm.
In some embodiments, as shown in fig. 6, the solder strip 100 may further include a second transition section 40, and the second transition section 40 is connected to the other end of the first connection section 10, it should be noted that the photovoltaic module 200 may include a plurality of solder strips 100, for convenience of processing and improved processing efficiency, the plurality of solder strips 100 may be processed into an integral body connected end to end, and two adjacent solder strips 100 may be separated after being mounted on the cell to avoid short circuit. The second transition section 40 can facilitate the connection between two adjacent solder strips 100 and the processing, and the second transition section 40 and the first transition section 20 can be configured the same and extend in opposite directions to further improve the processing efficiency. Of course, in other examples, the first transition section 20 may be configured differently than the second transition section 40.
For example, referring to fig. 6, the photovoltaic module 200 may include a third cell piece 230 and a fourth cell piece (not shown), the first cell piece 210 and the second cell piece 220 are connected by one solder strip 100, the second transition section 40 of the solder strip 100 is connected to an end of the first connection section 10 facing the third cell piece 230, the third cell piece 230 and the fourth cell piece may be connected by another solder strip 100, the second connection section 30 of the solder strip 100 is located at an end of the solder strip 100 facing the first cell piece 210, the solder strips 100 are connected during processing, and the solder strips 100 are separated after being mounted on the cell pieces.
In some embodiments, referring to fig. 5 and 6, the first transition section 20 is disposed on the front surface of the first cell sheet 210 or the first transition section 20 is disposed between the first cell sheet 210 and the second cell sheet 220. For example, fig. 6 can be a front view of the photovoltaic module 200 according to the embodiment of the present invention, the first transition section 20 is a trapezoidal surface along the orthographic projection of fig. 1 along the left-right direction, and the first transition section 20 is disposed on the front surface of the first cell piece 210, so that the outer contour of the solder strip 100 is smoother, and the processing is convenient, and on the other hand, the hidden crack can be avoided. The first connection segment 10 may be welded to the front surface of the first battery sheet 210, and the second connection segment 30 may be welded to the rear surface of the second battery sheet 220.
According to the utility model discloses weld area 100, including first linkage segment 10, first changeover portion 20 and second linkage segment 30, first changeover portion 20 is connected between wherein one end of first linkage segment 10 and wherein one end of second linkage segment 30.
As shown in fig. 1 and 2, the orthographic projection of at least one direction of the first transition section 20 is a trapezoid, and the first transition section 20 can be connected with the first connection section 10 and the second connection section 30 to play a role of transition, so that the smoothness of connection of multiple parts of the solder strip 100 is ensured. Meanwhile, through the arrangement of the first transition section 20, the arrangement position between the first connecting section 10 and the second connecting section 30 can have a height difference, and the welding strip 100 can adapt to the height difference between the first connecting section 10 and the second connecting section 30 well, so that the reliability of the welding strip 100 is ensured, and the application range of the welding strip is improved.
For example, the solder ribbon 100 may be applied to the photovoltaic module 200, and the photovoltaic module 200 may include a plurality of battery pieces including a first battery piece 210 and a second battery piece 220 which are adjacently disposed. The first cell piece 210 and the second cell piece 220 are connected by the solder strip 100, and the first connection segment 10 is connected to the front surface of the first cell piece 210, so that the first connection segment 10 can reflect light. The second connection segment 30 is connected to the rear surface of the second cell piece 220, and the first transition segment 20 is connected between one end of the first connection segment 10 and one end of the second connection segment 30. The connection between the solder strip 100 and the battery piece can be ensured to be stable.
The orthographic projection of the first transition section 20 may be trapezoidal in one or more directions, for example, fig. 1 may be a front view of the welding strip 100 according to an embodiment of the present invention, and the orthographic projection of the first transition section 20 in the up-down direction shown in fig. 1 may be trapezoidal, or the orthographic projection of the first transition section 20 in the left-right direction shown in fig. 1 may be trapezoidal, or fig. 2 may be a top view of the welding strip 100 according to an embodiment of the present invention, and the orthographic projection in the front-back direction shown in fig. 2 may be trapezoidal, and the orthographic projection may be isosceles trapezoid or unequal isosceles trapezoid, such as a right trapezoid, which is not limited herein. For another example, when the solder strip 100 is connected to a cell, the orthographic projection on the cell is an isosceles trapezoid.
According to the utility model discloses weld and take 100, the orthographic projection of at least one direction of first changeover portion 20 is trapezoidal to play the effect of transition, guaranteed the smoothness nature of the linking of a plurality of parts of welding area 100, and can be convenient for make weld the difference in height at area 100 adaptation both ends, mechanical properties is good, has improved the reliability of welding area 100.
In some embodiments, in conjunction with fig. 1, the bottom surface of the first connection section 10 is not coplanar with the bottom surface of the first transition section 20; and/or the bottom surface of the second connector segment 30 is not coplanar with the bottom surface of the first transition segment 20. Here, the "bottom surface" refers to a surface like the lower end of fig. 1. So set up, can adapt to setting up the position difference in height between first linkage segment 10 and the second linkage segment 30 better, guarantee to weld the reliability of taking 100, simultaneously, the processing of being convenient for. For example, the bottom surfaces of the first connecting section 10 and the second connecting section 30 may be planar and coplanar, and the bottom surface of the first transition section 20 may be in various shapes that are not coplanar with the bottom surface of the first connecting section 10, so that the arrangement can be more easily adapted to the height difference between the first connecting section 10 and the second connecting section 30, and the reliability of the photovoltaic module 200 is improved.
Of course, in other embodiments, the bottom surface of the first connection section 10 and the bottom surface of the first transition section 20 may be coplanar, and the bottom surface of the second connection section 30 and the bottom surface of the first transition section 20 may also be coplanar to facilitate electrical conduction. The orthographic projection of the first transition section 20 may be a right trapezoid, and a face of the first transition section 20 facing the battery plate is a right-angled face of the trapezoid.
In some embodiments, with reference to fig. 3 and 4, the peripheral wall of the first transition section 20 includes at least one arc-shaped surface 21, and the middle of the arc-shaped surface 21 protrudes toward the center of the first transition section 20, so that partial light can be reflected to the cell, and the utilization rate of the light is improved. Of course, in other embodiments, the middle of the arcuate surface 21 may also be convex away from the center of the first transition section 20. Alternatively, the peripheral wall surface of the first transition section 20 may be planar.
In some embodiments, as shown in fig. 6, the solder strip 100 may further include a second transition section 40, and the second transition section 40 is connected to the other end of the first connection section 10, it should be noted that the photovoltaic module 200 may include a plurality of solder strips 100, for convenience of processing and improved processing efficiency, the plurality of solder strips 100 may be processed into an integral body connected end to end, and two adjacent solder strips 100 may be separated after being mounted on the cell to avoid short circuit. The second transition section 40 can facilitate the connection between two adjacent solder strips 100 and the processing, and the second transition section 40 and the first transition section 20 can be configured the same and extend in opposite directions to further improve the processing efficiency. Of course, in other examples, the first transition section 20 may be configured differently than the second transition section 40.
For example, the solder strips 100 may be plural, wherein the second transition section 40 of one solder strip 100 is connected to the second connecting section 30 of an adjacent solder strip 100, and the second connecting section 30 of the solder strip 100 is connected to the second transition section 40 of another adjacent solder strip 100.
In the description of the present invention, it is to be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "circumferential", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (13)
1. A photovoltaic module, characterized in that, photovoltaic module includes solder strip, first battery piece and second battery piece, first battery piece with the second battery piece passes through the solder strip is connected, the solder strip includes:
a first connection section connected to a front surface of the first cell sheet,
a first transition section, wherein the orthographic projection of at least one direction of the first transition section is a trapezoid; and
the second connecting section is connected with the back face of the second battery piece, and the first transition section is connected between one end of the first connecting section and one end of the second connecting section.
2. The photovoltaic module of claim 1, wherein a bottom surface of the first connecting section is not coplanar with a bottom surface of the first transition section; and/or
The bottom surface of the second connecting section is not coplanar with the bottom surface of the first transition section.
3. The photovoltaic module of claim 1, wherein the first connecting section is circular or polygonal in vertical cross-section.
4. The photovoltaic assembly of claim 1, wherein the first connecting section has a height greater than a height of the second connecting section; and/or
The width of the second connecting section is larger than that of the first connecting section.
5. The photovoltaic module of claim 1, wherein the second connecting section is a flat plate having an arcuate section connected between a top plate and a bottom plate of the flat plate.
6. The photovoltaic module of claim 1, wherein the peripheral wall surface of the first transition segment includes at least one arcuate surface, a central portion of the arcuate surface being convex toward a center of the first transition segment.
7. The photovoltaic module of claim 1, wherein the first transition section has a length of 0.2mm to 5 mm.
8. The photovoltaic module of claim 1, further comprising a second transition segment connected to the other end of the first connecting segment, the second transition segment being identically configured to the first transition segment and extending in an opposite direction.
9. The photovoltaic module of claim 1, wherein the first transition section is disposed on the front side of the first cell sheet or the first transition section is disposed between the first cell sheet and the second cell sheet.
10. A solder strip, comprising:
a first connection section;
a first transition section, wherein the orthographic projection of at least one direction of the first transition section is a trapezoid; and
a second connection section, wherein the first transition section is connected between one end of the first connection section and one end of the second connection section.
11. The solder strip of claim 10, wherein a bottom surface of the first connection section is non-coplanar with a bottom surface of the first transition section; and/or
The bottom surface of the second connecting section is not coplanar with the bottom surface of the first transition section.
12. The solder strip of claim 10, wherein the peripheral wall surface of the first transition section includes at least one arcuate surface, a central portion of the arcuate surface being convex toward a center of the first transition section.
13. The weld bead of claim 10, further comprising a second transition segment connected to the other end of the first connection segment, the second transition segment being identically configured to the first transition segment and extending in an opposite direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022406056.0U CN213340394U (en) | 2020-10-26 | 2020-10-26 | Photovoltaic module and solder strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022406056.0U CN213340394U (en) | 2020-10-26 | 2020-10-26 | Photovoltaic module and solder strip |
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| CN213340394U true CN213340394U (en) | 2021-06-01 |
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| CN202022406056.0U Active CN213340394U (en) | 2020-10-26 | 2020-10-26 | Photovoltaic module and solder strip |
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