CN208538874U - A kind of plating metal grid line for solar battery sheet interconnection area - Google Patents
A kind of plating metal grid line for solar battery sheet interconnection area Download PDFInfo
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- CN208538874U CN208538874U CN201821312316.4U CN201821312316U CN208538874U CN 208538874 U CN208538874 U CN 208538874U CN 201821312316 U CN201821312316 U CN 201821312316U CN 208538874 U CN208538874 U CN 208538874U
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The utility model discloses a kind of plating metal grid lines for solar battery sheet interconnection area, including the metal gate wire frame being arranged between the region that two adjacent cell pieces are stacked with, the metal gate wire frame includes the main frame being vertically connected with parallel cell piece assistant grid, it is parallel to longitudinal secondary frame that main frame is not connected with cell piece assistant grid, and the laterally secondary frame being connected positioned at two sides with main frame and longitudinal secondary frame.Made metal gate wire frame forms certain barrier effect to conducting resinl, when cell piece is overlapped, can prevent or reduce conducting resinl spilling, avoid the formation of series resistance and cause cell piece short-circuit.
Description
Technical field
The utility model belongs to solar energy manufacturing field, and in particular to a kind of electricity for solar battery sheet interconnection area
Plating metal grid line.
Background technique
In recent years, Photovoltaic new energy occupies increasingly consequence in world's energy resource structure, this very great Cheng in fact
It is to be had gradually developed under the policy support of national governments due to its effect to environmental protection on degree.If however,
Want to enable Photovoltaic new energy to form enough competitiveness in the environment of free market, in addition reach in energy resource structure with tradition
Fossil energy has half share, it is also necessary to which the continuous effort of major photovoltaic enterprise and research institution, increasing photovoltaic efficiency reduces
Cost of electricity-generating.Whether the research and development of photovoltaic module technology or photovoltaic cell technology can be played to improve photovoltaic competitiveness to pass
Important role or even the two bring income mutually superimposed can form bigger advantage.
In recent years, a kind of high-efficiency battery piece coupled components technology is gradually risen, this technology is usually to cut solar battery
Digit piece, and will be stacked between piece and piece along one side.The photovoltaic group formed using this battery lamination interconnection technique
Part, which possesses smaller series resistance, can also reduce hot plate effect.Meanwhile the unit area output of the component is higher, so that adopting
Occupied area can be reduced with the photovoltaic system of this component, reduces installation and the maintenance cost of BOS cost and system.
The existing scheme of above-mentioned cell piece interconnection technique is usually to form one in cell piece front side and the back side other side
Main electrode, the back side main electrode of a piece of battery and the positive main electrode of another battery using conducting resinl mutually overlapped and applied
Plus-pressure guarantees that two panels battery can form good attachment force and conductive contact.As shown in fig. 6, on solar battery sheet 610
Using silk-screen printing silver paste 610 interconnection area of cell piece production have one fixed width main electrode 630 for converge and and
Conducting resinl forms good conductive contact.Usually a main electricity is respectively formed in the positive side of cell piece 610 and the back side other side
Pole 630 is mutually overlapped the back side main electrode of a piece of battery and the positive main electrode of another battery using conducting resinl 640, such as
Shown in Fig. 6 b.However, this scheme is easy that conducting resinl 640 is made to be spilled over to cell piece side shape after applying pressure between cell piece
At parallel resistance and reduce cell output even result in cell piece short circuit, as fig. 6 c.
In addition, in the prior art scheme, the main electrode connects for converging and forming good conduction with conducting resinl
Touching, the silver paste production of generally silk-screen printing, cost is costly.
Utility model content
In view of the above-mentioned problems, the utility model proposes a kind of plating metal grid for solar battery sheet interconnection area
Line.
It realizes above-mentioned technical purpose, reaches above-mentioned technical effect, the utility model is achieved through the following technical solutions:
A kind of plating metal grid line for solar battery sheet interconnection area, the solar battery includes several
It is stacked with the cell piece that links together by marginal position, the battery side where stacking and battery are used on the cell piece
The extending direction of the Metallic Pairs gate electrode of on piece is mutually perpendicular to, and is arranged between the region that two adjacent cell pieces are stacked with
Metal gate wire frame, the metal gate wire frame include the main frame being vertically connected with parallel cell piece assistant grid, are parallel to
Longitudinal secondary frame that main frame is not connected with cell piece assistant grid, and be connected positioned at two sides with main frame and longitudinal secondary frame
Laterally pair frame.
The width of the main frame, longitudinal secondary frame or lateral secondary frame as a further improvement of the utility model,
It is highly 2-20um for 12-300um；The length of the laterally secondary frame is 0.5-3mm, preferably 1mm.The master
The length of frame or longitudinal secondary frame is slightly less than the side length of parallel cell piece.
The main frame and longitudinal secondary frame or laterally secondary frame as a further improvement of the utility model,
It is of same size.
The width of the main frame is greater than longitudinal secondary frame or cross as a further improvement of the utility model,
To secondary frame.The width of the main frame is preferably 50-300um.
The front and back of cell piece is arranged in the metal gate wire frame as a further improvement of the utility model,
The metal gate wire frame that cell piece front and back is arranged in is located at the two sides of cell piece.
The main frame is the grid of the thin grid line composition of several intersections as a further improvement of the utility model,
Shape form, the width of the thin grid line are 15-45um.
It as a further improvement of the utility model, further include the graphic structure metal being deposited on inside metal gate wire frame
Layer, the graphic structure metal layer include the graphic structure point that several equidistant extending directions along main frame arrange
Body, described graphic structure fission one end are connected with main frame, and the other end is located inside metal gate wire frame, the distance between both ends
Greater than the 1/2 of the laterally secondary frame.
As a further improvement of the utility model, include multiple metal gate wire frames, the metal gate wire frame along with
The side length on the battery side where stacking is arranged, and the laterally secondary frame in adjacent metal gate wire frame can be by being located between the two
The second main frame be connected.
The second main frame is that the thin grid line of several intersections is constituted as a further improvement of the utility model,
Latticed form, the width of the thin grid line are 15-45um.
The utility model has the beneficial effects that
1. graphical grid line described in the utility model is that metal grid lines mount structure can form certain blocking work to conducting resinl
With, when cell piece is overlapped, can prevent or reduce conducting resinl spilling, avoid the formation of series resistance and cause cell piece short
Road.
2. metal gate wire frame made by can not only play the role of auxiliary confluence in cell piece work, but also can
Uneven electric current derived from budget metals pair grid line.Further, since the transverse conduction of conductive adhesive layer is poor, to reduce string
Join resistance, the utility model increases the conduction of electric current axial transport by the graphic structure metal layer formed in metal gate wire frame
Property, promote battery performance.
3. in multiple metal grid lines along battery for the battery side distribution where stack region in the utility model
Conducting resinl progress cell piece is filled in frame and subtracts interconnection, and thicker main frame or metal mesh trellis are used to adjacent metal grid line frame
The connected method of grid line, can save conducting resinl dosage while not reducing battery reliability.
4. the utility model method replaces silk-screen printing silver paste to be formed using the graphical grid line that electroplating technology is formed
Main electrode, the cost of silver paste can be saved.Further, in electroplating technology, copper, tin, nickel etc. can be used more just
Suitable metal replaces silver, further saves cost.
Detailed description of the invention
Fig. 1 (a) is the interconnection area metal grid lines structural schematic diagram of the first embodiment of the utility model, Fig. 1 (b)
Method to use the utility model makes the structural schematic diagram of the solar battery sheet of interconnection area, and Fig. 1 (c) is to apply pressure
The structural schematic diagram of the solar battery sheet of the utility model interconnection afterwards；
Fig. 2 is the interconnection area metal grid lines structural schematic diagram of second of embodiment of the utility model；
Fig. 3 is the interconnection area metal grid lines structural schematic diagram of the third embodiment of the utility model；
Fig. 4 is the interconnection area metal grid lines structural schematic diagram of the 4th kind of embodiment of the utility model；
Fig. 5 is the interconnection area metal grid lines structural schematic diagram of the 5th kind of embodiment of the utility model；
Fig. 6 (a) is the structural schematic diagram for the solar battery sheet that the prior art makes interconnection area, and Fig. 6 (b) is to apply
The structural schematic diagram for the solar battery sheet that the prior art interconnects after pressure.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, with reference to embodiments, to this
Utility model is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain that this is practical
It is novel, it is not used to limit the utility model.
The application principle of the utility model is explained in detail with reference to the accompanying drawing.
Embodiment 1
As shown in Figure 1a, left side is cell piece schematic diagram, and right side is the amplified plating grid line structure signal of interconnection area
Figure.
In the present embodiment, the plating grid line includes the cell piece interconnection in 110 long side boundary of solar battery sheet
Region production metal gate wire frame 130.Wherein include one be parallel to battery long side and on cell piece Metallic Pairs grid electricity
120 one end of pole connected 131, two, main frame lateral secondary frames 132 and a vertical secondary frame 133.Main 131 height of frame is about
It is 2-20 μm, preferably 5-12 μm, width is 12-300 μm, preferably 80-300 μm.Three secondary height of frame 132 and 133 are about
It is 2-20 μm, preferably 5-12 μm, width is 12-300 μm, here preferably 12-45 μm.The length of lateral pair frame 132 is about
For 0.5-3mm, it is preferred that about 1mm.
The metallic electrode of the plating grid line and battery makes simultaneously.Production method is included in battery surface production figure
Shape exposure mask, and using the conductive layer in galvanoplastic sedimentation production grid line, may also include or do not include using chemical plating or
Any one or two kinds of galvanoplastic deposited seed layer or protective layer, finally remove exposure mask.
It is carried out mutually using the three pieces solar battery sheet 110a-110c of the method production interconnection area using conducting resinl
Its interface is as shown in Figure 1 b after overlap joint.In some embodiments, solar battery sheet 110a-110c is double-side cell, metal gate
Wire frame 130 is fabricated on the opposite edge zones of the both sides of solar battery sheet 110b, i.e., in the front solar battery sheet 110b
On be produced on and be arranged in the region interconnected cell piece 110c above the cell piece, at the back side solar battery sheet 110b
On be produced on and be arranged in and the region interconnected cell piece 110a below the cell piece.
Using this patent scheme, after applying pressure between cell piece, as shown in 1c, the frame of metal gate wire frame 130 can be right
Conducting resinl 140 forms certain barrier effect, prevents or reduces the spilling of conducting resinl 140, avoids the formation of series resistance and cause electricity
Pond piece short circuit.Meanwhile its silk-screen printing silver paste main electrode is compared, the patterned metal grid line that this programme uses electroplating technology to be formed
More cheap metal (such as copper, tin, nickel) can be used to replace expensive silver paste, reduce battery cost.
Embodiment 2
As shown in Fig. 2, left side is cell piece schematic diagram, right side is the amplified plating grid line structure signal of interconnection area
Figure.
In the present embodiment, the plating grid line includes the cell piece interconnection in 210 long side boundary of solar battery sheet
Region production metal gate wire frame 230.
In the present embodiment, main frame 231 and secondary frame 232 are of same size, and preferably 80-300 μm, bezel height is about 2-
20 μm, preferably 5-12 μm.Laterally the length of pair frame 132 is about 0.5-3mm, it is preferred that about 1mm.Using wider pair
Frame has the beneficial effect that, by circumferential side frame, not only carries out charge transmission by main frame and conducting resinl, reduces series electrical
It hinders and metal gate wire frame 230 still plays the role of preferable balanced balanced current in the fracture of main frame.
In the present embodiment, there are also graphic structure metal layers 233 for 230 inside of metal gate wire frame, here preferably in diagram
A plurality of triangle grid line, wide one end is connected with main frame 231, and it is preferably greater than along cell piece narrow side direction length
The length of the lateral secondary frame 232 of half.Usually, the transverse conductance of conductive adhesive layer (or conductive adhesive layer superposition tco layer)
Property is poor, can increase the conduction of electric current axial transport using the graphic structure metal layer 233 in the present embodiment in metal gate wire frame
Property, series resistance is reduced, battery performance is promoted.
The metallic electrode of the graphic structure metal layer 233 of the metal gate wire frame 230 and Qi Nei and cell piece is simultaneously
Production.In the present embodiment, production method is included in battery surface production pattern mask, using in electroless plating method deposition grid line
Nickel seed layer makes copper conductive layer using galvanoplastic sedimentation, finally removes exposure mask.
Embodiment 3
As shown in figure 3, left side is cell piece schematic diagram, right side is the amplified plating grid line structure signal of interconnection area
Figure.
In the present embodiment, the plating grid line includes the cell piece interconnection in 310 long side boundary of solar battery sheet
Region production metal gate wire frame 330.
In the present embodiment, secondary 332 width of frame is 12-300 μm, and preferably 12-45 μm, height is about 2-20 μm, preferably
It is 5-12 μm.Main frame 331 is latticed thin grid, and every thin grid line width is preferably about 15-45 μm.Use latticed thin grid
The maximum width of plating grid line can be reduced as main frame 331, guarantee that plating grid line possesses enough adhesive force.
In the present embodiment, the inside of metal gate wire frame 330 is internal in the present embodiment there are also graphic structure metal layer 333
Graphic structure metal layer 333 is the laterally carefully extension of grid of main frame 331.
The metallic electrode of the graphic structure metal layer 333 of the metal gate wire frame 330 and Qi Nei and cell piece is simultaneously
Production.In the present embodiment, production method is included in battery surface production pattern mask, using the copper in galvanoplastic deposition grid line
Conductive layer and tin protective layer, finally remove exposure mask.
Embodiment 4
As shown in figure 4, left side is cell piece schematic diagram, right side is the amplified plating grid line structure signal of interconnection area
Figure.
In the present embodiment, the plating grid line includes the cell piece interconnection in 410 long side boundary of solar battery sheet
Region production the main frame 431 of grid line and along main frame 431 arrangement multiple metal rectangular frames 430.Each metal rectangular frame
430 length are about 5-50mm, here preferably 10-30mm.Adjacent metal frame is spaced about 3-30mm, here preferably 5-
20mm.Secondary frame is connected by the second main frame 431b between adjacent metal frame, makes the main frame 431 of winner within the scope of rectangle frame
(431a sections) width is smaller, and preferably 50-80 μm, (431b sections) width is larger in 430 interval region of rectangle frame, preferably
80-300μm.This is because by the conducting resinl interconnection in rectangle frame 430 between cell piece, it is main in 430 interval region of rectangle frame
Current direction in frame 431a is the direction perpendicular to secondary grid 420, therefore can reduce electricity using wider main frame 431a
Resistance loss.
In the present embodiment, there are also graphic structure metal layers 433 for 430 inside of metal gate wire frame, are used to balanced balanced current, reduce
The series resistance of conductive adhesive layer.
The metallic electrode of the graphic structure metal layer 433 of the metal gate wire frame 430 and Qi Nei and cell piece is simultaneously
Production.In the present embodiment, production method is included in battery surface production pattern mask, using the nickel in galvanoplastic deposition grid line
Seed layer and copper conductive layer make silver-colored protective layer using chemical plating, finally remove exposure mask.
Battery performance and reliability can be not being reduced using metal grid lines in cell piece interconnection area made of the method
While save conducting resinl dosage.
Embodiment 5
As shown in figure 5, left side is cell piece schematic diagram, right side is the amplified plating grid line structure signal of interconnection area
Figure.
In the present embodiment, the plating grid line includes the cell piece interconnection in 510 long side boundary of solar battery sheet
Region production the main frame 531 of grid line and along main frame 531 arrangement multiple metal rectangular frames 530.Each metal rectangular frame
530 length are about 5-50mm, here preferably 10-30mm.Adjacent metal frame is spaced about 3-30mm, here preferably 5-
20mm.The width of the secondary frame 532 of main frame 531 and rectangle frame 530 is preferably 80-300 μm, in fact it is highly preferred that is 5-12 μm.
It is connected between adjacent metal rectangle frame 530 by the be made of metal mesh trellis grid line second main frame 534.
In the present embodiment, there are also graphic structure metal layers 533 for 530 inside of metal gate wire frame, are used to balanced balanced current, reduce
The series resistance of conductive adhesive layer.In the present embodiment, the graphic structure metal layer 533 is more for connecting two long sides of rectangle frame
Metal grid lines.
The metallic electrode of the graphic structure metal layer 533 of the metal gate wire frame 530 and Qi Nei and cell piece is simultaneously
Production.In the present embodiment, production method is included in battery surface production pattern mask, using the copper in galvanoplastic deposition grid line
Conductive layer finally removes exposure mask.
Battery performance and reliability can be not being reduced using metal grid lines in cell piece interconnection area made of the method
While save conducting resinl dosage.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, the rectangular metal frame shape as described in change, these changes and improvements both fall within claimed
In the scope of the utility model.The protection scope of the present invention is defined by the appended claims and their equivalents.
Claims (9)
1. a kind of plating metal grid line for solar battery sheet interconnection area, the solar battery includes that several are logical
It crosses marginal position and is stacked with the cell piece that links together, the battery side where stacking and cell piece are used on the cell piece
On the extending direction of Metallic Pairs gate electrode be mutually perpendicular to, be provided between the region that two adjacent cell pieces are stacked with
Metal gate wire frame, it is characterised in that: the metal gate wire frame includes the main side being vertically connected with parallel cell piece assistant grid
Frame is parallel to longitudinal secondary frame that main frame is not connected with cell piece assistant grid, and secondary positioned at two sides and main frame and longitudinal direction
The laterally secondary frame that frame is connected.
2. a kind of plating metal grid line for solar battery sheet interconnection area according to claim 1, feature exist
In: the main frame, longitudinal secondary frame or laterally the width of secondary frame is 12-300um, is highly 2-20um；The cross
It is 0.5-3mm, preferably 1mm to the length of secondary frame.
3. a kind of plating metal grid line for solar battery sheet interconnection area according to claim 2, feature exist
In the of same size of with the longitudinal secondary frame or lateral secondary frame of: the main frame.
4. a kind of plating metal grid line for solar battery sheet interconnection area according to claim 2, feature exist
In: the width of the main frame is greater than longitudinal secondary frame or lateral secondary frame；The width of the main frame is preferably
50-300um。
5. a kind of plating metal grid line for solar battery sheet interconnection area according to claim 1, feature exist
In: the front and back of cell piece is arranged in the metal gate wire frame, and the metal grid lines of cell piece front and back are arranged in
Frame is located at the two sides of cell piece.
6. a kind of plating metal grid line for solar battery sheet interconnection area according to claim 1, feature exist
In: the main frame is the latticed form that the thin grid line of several intersections is constituted, and the width of the thin grid line is 15-
45um。
7. a kind of plating metal grid line for solar battery sheet interconnection area according to claim 1 or 6, feature
It is: further includes the graphic structure metal layer being deposited on inside metal gate wire frame, the graphic structure metal layer includes several
The graphic structure that a equidistant extending direction along main frame arranges is seperated, described graphic structure fission one end and main frame
It is connected, the other end is located inside metal gate wire frame, and the distance between both ends are greater than the 1/2 of the laterally secondary frame.
8. a kind of plating metal grid line for solar battery sheet interconnection area according to claim 1, feature exist
In: including multiple metal gate wire frames, the metal gate wire frame is arranged along the side length for the battery side where stacking, adjacent
Metal gate wire frame in laterally secondary frame can be connected by the second main frame for being located between the two.
9. a kind of plating metal grid line for solar battery sheet interconnection area according to claim 8, feature exist
In: the main frame of described second is the latticed form that the thin grid line of several intersections is constituted, and the width of the thin grid line is
15-45um。
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821312316.4U CN208538874U (en) | 2018-08-15 | 2018-08-15 | A kind of plating metal grid line for solar battery sheet interconnection area |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821312316.4U CN208538874U (en) | 2018-08-15 | 2018-08-15 | A kind of plating metal grid line for solar battery sheet interconnection area |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109273537A (en) * | 2018-08-15 | 2019-01-25 | 苏州太阳井新能源有限公司 | A kind of interconnection grid line and production method, applicable solar battery and interconnection mode |
| WO2021013275A3 (en) * | 2020-01-23 | 2021-03-11 | 成都晔凡科技有限公司 | Shingled assembly, solar cell pieces, and manufacturing method for shingled assembly |
| CN112490625A (en) * | 2020-11-24 | 2021-03-12 | 中国电子科技集团公司第十八研究所 | Monopole broadband antenna based on solar cell grid line structure |
-
2018
- 2018-08-15 CN CN201821312316.4U patent/CN208538874U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109273537A (en) * | 2018-08-15 | 2019-01-25 | 苏州太阳井新能源有限公司 | A kind of interconnection grid line and production method, applicable solar battery and interconnection mode |
| WO2021013275A3 (en) * | 2020-01-23 | 2021-03-11 | 成都晔凡科技有限公司 | Shingled assembly, solar cell pieces, and manufacturing method for shingled assembly |
| CN112490625A (en) * | 2020-11-24 | 2021-03-12 | 中国电子科技集团公司第十八研究所 | Monopole broadband antenna based on solar cell grid line structure |
| CN112490625B (en) * | 2020-11-24 | 2024-03-01 | 中电科蓝天科技股份有限公司 | Monopole broadband antenna based on solar cell grid line structure |
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