CN206589442U - A kind of solar battery sheet printing screen plate - Google Patents
A kind of solar battery sheet printing screen plate Download PDFInfo
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- CN206589442U CN206589442U CN201720174399.4U CN201720174399U CN206589442U CN 206589442 U CN206589442 U CN 206589442U CN 201720174399 U CN201720174399 U CN 201720174399U CN 206589442 U CN206589442 U CN 206589442U
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Abstract
The utility model discloses a kind of solar battery sheet printing screen plate, including frame, the inside of frame is provided with main grid and secondary grid, every secondary grid include the secondary grid of middle secondary grid and two edges, middle pair grid include the secondary grid of many cross-talks, the secondary grid in two edges are respectively between two sides of frame and corresponding main grid, the width of sub- pair grid and the secondary grid in edge changes along gradual change dimension linear, the width maximum of the secondary grid in two edges is at corresponding main grid, the center line of frame is set to A lines, when the radical of main grid is odd number, A lines are overlapped with positioned at a most middle main grid, the secondary grid of son positioned at A lines both sides are symmetrical arranged centered on A lines；When the radical of main grid is even number, the secondary grid of son between two most middle adjacent main grids are set to secondary grid of demarcating, and the secondary grid of other sons positioned at the secondary grid two ends of boundary are symmetrical arranged centered on A lines.The solar battery sheet printing screen plate, can reduce positive electrode silver paste consumption, lift battery efficiency.
Description
Technical field
The utility model is related to technical field of solar batteries, more particularly to a kind of solar battery sheet printing screen plate.
Background technology
Solar cell is a kind of optoelectronic semiconductor component by the photoelectric effect direct generation of electricity.Solar cell mainly has
Crystal silicon battery, III-V semi-conductor cell and organic compound battery etc., current crystal silicon solar batteries occupy leading market status.
, it is necessary to which in the N faces print positive electrode of silicon chip, positive electrode is used for collecting what is excited in the manufacturing process of solar cell
Carrier, forms path conduction electric current.Existing printing screen plate is as shown in figure 1, it includes being provided with net in screen frame 11 ', screen frame 11 '
Cloth 12 ', its screen cloth 12 ' latex with steel wire or black line is constituted.Have after photoetching, on screen cloth 12 ' available for printing strike through
Pierced pattern, it includes main grid 13 ' and secondary grid 14 '.During collecting carrier, current density can be with moving closer to
Main grid and increase, existing printing screen plate keeps constant in printing, because secondary grid 14 ' extend along direction width, it is impossible to suitable
The change of induced current density, while also resulting in the waste of slurry.
Utility model content
The purpose of this utility model is to propose a kind of solar battery sheet printing screen plate, can reduce positive electrode silver paste and use
Amount, lifts battery efficiency.
For up to this purpose, the utility model uses following technical scheme：
A kind of solar battery sheet printing screen plate, including frame, the interior parallel of the frame are interval with many main grids
And some secondary grid perpendicular to the main grid, the every secondary grid are including middle secondary grid and positioned at the middle secondary grid two
The secondary grid in two edges at end, the middle secondary grid include the secondary grid of many cross-talks being located between adjacent two main grids, two institutes
The secondary grid in edge are stated respectively between two sides of the frame and the corresponding main grid, by one of them of the secondary grid
Bearing of trend is defined as gradual change direction, and the width of the secondary grid of son and the secondary grid in the edge changes along gradual change dimension linear, and two
The width maximum of the secondary grid in the individual edge at the corresponding main grid,
The center line of the frame is set to A lines, and the A lines are parallel to the main grid, radical >=3 of the main grid,
When the radical of the main grid is odd number, the A lines are overlapped with positioned at a most middle main grid, positioned at institute
The secondary grid of the son for stating A lines both sides are symmetrical arranged centered on the A lines；
When the radical of the main grid is even number, the secondary grid of the son between two most middle adjacent main grids
Secondary grid of demarcating are set to, other described secondary grid of son positioned at the secondary grid two ends of the boundary are symmetrical arranged centered on the A lines.
As a kind of preferred embodiment, the secondary grid of son, the secondary grid in the edge include a big end A and are oppositely arranged
One small end B, wherein, the width of the big end A is 20 μm -35 μm, and the width of the small end B is 10 μm -20 μm.
As a kind of preferred embodiment, the spacing between two main grids of arbitrary neighborhood is identical, the root of the main grid
Number is 3-16 roots.
As a kind of preferred embodiment, the distance between the length of the secondary grid of son and main grid of solar battery sheet phase
Together.
As a kind of preferred embodiment, the secondary length of grid in the edge and the edge of solar battery sheet and corresponding main grid
Between spacing it is identical.
As a kind of preferred embodiment, the length of the main grid is identical with the length of solar battery sheet, the main grid
Width be 300 μm -800 μm.
As a kind of preferred embodiment, the spacing between the secondary grid of arbitrary neighborhood two is identical, the root of the secondary grid
Number is 80-200 roots.
As a kind of preferred embodiment, in addition to screen frame, screen cloth, the frame and the master are provided with the screen frame
Grid, the secondary grid are on the screen cloth.
It is used as a kind of preferred embodiment, when the radical of the main grid is odd number, the son positioned at the A lines side
The width of secondary grid gradually increases each along gradual change direction, positioned at the equal edge of width of multiple secondary grid of son of the A lines opposite side
Gradual change direction to be gradually reduced.
As a kind of preferred embodiment, when the radical of the main grid is even number,
The width of the secondary grid of boundary is gradually reduced along gradual change direction, and the son positioned at the secondary grid one end of the boundary is secondary
Grid are gradually reduced along gradual change direction, and the secondary grid of the son positioned at the secondary grid other end of the boundary gradually increase along gradual change direction
Greatly；Or
The width of the secondary grid of boundary gradually increases along gradual change direction, and the son positioned at the secondary grid one end of the boundary is secondary
Grid are gradually reduced along gradual change direction, and the secondary grid of the son positioned at the secondary grid other end of the boundary gradually increase along gradual change direction
Greatly.
The beneficial effects of the utility model are：
Solar battery sheet printing screen plate of the present utility model, its secondary grid be divided into by boundary of main grid the secondary grid of many height and
The secondary grid in two edges, and the secondary grid of many height be divided into by boundary of A lines A lines with it is left with A lines with two regions on the right side, the two
Region is symmetrical arranged centered on A lines, thus the width of the secondary grid of many height positioned at the same area is along same gradual change direction
Linear change, such as gradually increases or is gradually reduced, and the width maximum of the secondary grid in two edges passes through width at corresponding main grid
Constant secondary grid are not kept, positive electrode silver paste consumption can be reduced, production cost is reduced, and are reduced positive electrode and are stopped area, increase
Effective generating area, width does not keep the constant secondary grid can also to adapt to the current density to be collected of different piece, with
This ensures that electric current is smoothly effectively collected and water conservancy diversion, and reduces secondary gate resistance, lifts battery efficiency.
Brief description of the drawings
Fig. 1 is the structural representation of printing screen plate of the prior art；
Fig. 2 is a kind of structural representation of preferred embodiment of solar battery sheet printing screen plate of the present utility model；
Fig. 3 is the structural representation of another preferred embodiment of solar battery sheet printing screen plate of the present utility model；
Fig. 4 is the structural representation of the still another preferable embodiment of solar battery sheet printing screen plate of the present utility model；
Fig. 5 is the structural representation of another preferred embodiment of solar battery sheet printing screen plate of the present utility model；
Fig. 6 is a kind of gradual change form of preferred embodiment of the secondary grid of solar battery sheet printing screen plate of the present utility model
Schematic diagram.
In figure：11 '-screen frame；12 '-screen cloth；13 '-main grid；14 '-auxiliary grid；
11- screen frames；12- screen cloths；13- main grids；14- pair grid；15- first edges pair grid；16- second edges pair grid.
Embodiment
Further illustrate the technical solution of the utility model below in conjunction with the accompanying drawings and by embodiment.
As shown in Figures 2 to 5, a kind of solar battery sheet printing screen plate that the utility model is provided, including screen frame 11, net
Screen cloth 12 is provided with frame 11, screen cloth 12 is provided with frame, and the interior parallel of frame is interval with many main grids 13 and some
Perpendicular to the secondary grid of main grid 13, every secondary grid include middle secondary grid and the secondary grid in two edges positioned at middle secondary grid two ends.In
Between secondary grid include the secondary grid 14 of many cross-talks that are located between adjacent two main grids 13, the secondary grid in two edges are located at two of frame respectively
Between side and corresponding main grid 13.One of bearing of trend of the secondary grid is defined as gradual change direction, son pair grid 14 with
The width of edge pair grid changes along gradual change dimension linear, and the width maximum of the secondary grid in two edges is at corresponding main grid 13.
Especially, as shown in Figures 2 to 4, the bearing of trend of the secondary grid can be to extend from left to right, or from the right side
To left extension, in the utility model embodiment, the bearing of trend that can use from left to right is the arrow in gradual change direction, such as Fig. 2 to 4
Head direction；Certainly, in other embodiments, it is gradual change direction that can also take bearing of trend from right to left, i.e., such as Fig. 2 extremely
Arrow in 4 rotates 180 ° of directions.
The center line of frame is set to A lines, and A lines are parallel to main grid 13, radical >=3 of main grid 13.
When the radical of main grid 13 is odd number, A lines are overlapped with positioned at a most middle main grid 13, positioned at A lines both sides
Sub- pair grid 14 are symmetrical arranged centered on A lines.
When the radical of main grid 13 is even number, the secondary grid 14 of son between two most middle adjacent main grids 13 are set to point
Boundary's pair grid, the secondary grid 14 of other sons positioned at the secondary grid two ends of boundary are symmetrical arranged centered on A lines.
Its secondary grid is that boundary is divided into the secondary grid of the secondary grid 14 of many height and two edges with main grid 13, and the secondary grid 14 of many height
A lines are divided into by boundary of A lines with left and A lines with two right regions, the two regions are symmetrical arranged centered on A lines, because
And the width of the secondary grid 14 of many height positioned at the same area is along same gradual change dimension linear change, as gradually increased or gradually
Reduce, the width maximum of the secondary grid in two edges is not kept constant secondary grid by width, can reduced at corresponding main grid
Positive electrode silver paste consumption, reduces positive electrode and stops area, lift battery efficiency.
As a kind of preferred embodiment, as shown in fig. 6, secondary grid (the first edge pair of secondary grid 14 and two edges per height
The secondary grid 16 of grid 15, second edge) include a big end A and the small end B being oppositely arranged, wherein, big end A width for 20 μm-
35 μm, small end B width is 10 μm -20 μm.For example, greatly end A width can for 20 μm, 21 μm, 22 μm, 23 μm, 24 μm, 25
μm, 26 μm, 27 μm, 28 μm, 29 μm, 30 μm, 31 μm, 32 μm, 33 μm, 34 μm, 35 μm, it is preferred that in the present embodiment, big end
Width is 25 μm.Small end B width can be 10 μm, 11 μm, 12 μm, 13 μm, 14 μm, 15 μm, 16 μm, 17 μm, 18 μm, 19 μ
M, 20 μm, it is preferred that in the present embodiment, small end width be 15 μm.
As a kind of preferred embodiment, the spacing between two main grids 13 of arbitrary neighborhood is identical, and the radical of main grid 13 is
3-16 roots.For example, the radical of main grid 13 be 3,4,5,6,7,8,9,10,11,12,13,14
Root, 15,16, it is preferred that when main grid is 4, son pair grid 14 are 3 sections, are the secondary grid of boundary positioned at most middle one section, and are led
When grid are 5, son pair grid 14 are 4 sections.
As a kind of preferred embodiment, the distance between the length of son pair grid 14 and main grid of solar battery sheet phase
Together, the secondary length of grid 16 of the secondary grid 15 of first edge, second edge between the edge of solar battery sheet and corresponding main grid between
Away from identical, secondary grid in the middle of secondary one section of the grid formation of many height.
As a kind of preferred embodiment, the length of main grid 13 is identical with the length of solar battery sheet, the width of main grid 13
Spend for 300 μm -800 μm.For example, the width of main grid 13 be 300 μm, 324 μm, 360 μm, 380 μm, 394 μm, 400 μm, 405 μm,
420μm、460μm、479μm、500μm、535μm、600μm、654μm、666μm、689μm、700μm、701μm、705μm、726μ
M, 735 μm, 740 μm, 765 μm, 770 μm, 780 μm, 790 μm, 795 μm, 800 μm, it is preferred that in the present embodiment, main grid 13
Width be 500 μm.
As a kind of preferred embodiment, the spacing between the secondary grid of arbitrary neighborhood two is identical, and the radical of secondary grid is 80-
200.For example, the radical of secondary grid is 80,90,100,110,120,130,140,150,160,
170,180,190,200, it is preferred that in the present embodiment, the radical of secondary grid is 100.
Below according to Fig. 2 to Fig. 5, some embodiments are enumerated, to further illustrate solar battery sheet of the present utility model
The structure of printing screen plate.
Citing 1
When the radical of main grid 13 is odd number, positioned at A lines side the secondary grid 14 of son width each along gradual change direction gradually
Increase, the width positioned at the secondary grid 14 of many height of A line opposite sides is gradually reduced each along gradual change direction.As shown in Figure 4,5, main grid
For 5, overlap, at this moment, using A lines or the main grid of centre as boundary, sub secondary grid are drawn with center line A positioned at the 3rd middle main grid
It is divided into A lines with left, A lines with two right regions, wherein, having on the left of A lines has the secondary grid of 2 cross-talks on the right side of the secondary grid of 2 cross-talks, A lines.As schemed
Shown in 4, as a kind of preferred embodiment, the width of the secondary grid of 2 cross-talks on the left of A lines gradually increases each along gradual change direction, and A
The width of the secondary grid of 2 cross-talks on the right side of line is gradually reduced each along gradual change direction.As shown in figure 5, being used as another side of being preferable to carry out
The width of the secondary grid of 2 cross-talks on the left of formula, A lines is gradually reduced each along gradual change direction, and the width of the secondary grid of 2 cross-talks on the right side of A lines
Gradually increase each along gradual change direction.
The gradual change direction of the present embodiment can be such as the arrow direction in Fig. 4 to 5 or as in Fig. 4 to 5
Arrow rotates 180 ° of directions.
Citing 2
When the radical of main grid 13 is even number, the width of the secondary grid of boundary is gradually reduced along gradual change direction, secondary positioned at boundary
The secondary grid 14 of son of grid one end are gradually reduced along gradual change direction, and the secondary grid 14 of son positioned at the secondary grid other end of boundary are along gradual change direction
Gradually increase.As shown in Figure 2,3, main grid is 4, positioned at two middle main grids, namely from left to right or from right to left the
2nd, the secondary grid of son between the 3rd are the secondary grid of boundary, using secondary grid of demarcating as boundary, and the secondary grid of other sons are divided into A lines with left, A lines
With right two regions, wherein, A lines have the secondary grid of 1 cross-talk with a left side, and A lines have the secondary grid of 1 cross-talk with the right side.As shown in Fig. 2 as a kind of excellent
Embodiment is selected, the width of A lines using the secondary grid of 1 left cross-talk gradually increases as along gradual change direction, A lines are with the secondary grid of 1 right cross-talk
Width to be gradually reduced along gradual change direction.With reference to Fig. 2, as another preferred embodiment, A lines are with 1 left cross-talk pair
The width of grid is is gradually reduced along gradual change direction, and the width of A lines using the secondary grid of 1 right cross-talk gradually increases as along gradual change direction
Greatly.
The gradual change direction of the present embodiment can be such as the arrow direction in Fig. 2 or 3 or as in Fig. 2 or 3
Arrow rotates 180 ° of directions.
Citing 3
When the radical of main grid 13 is even number, the width of the secondary grid of boundary gradually increases along gradual change direction, secondary positioned at boundary
The secondary grid 14 of son of grid one end are gradually reduced along gradual change direction, and the secondary grid 14 of son positioned at the secondary grid other end of boundary are along gradual change direction
Gradually increase.As shown in Figure 2,3, main grid is 4, positioned at two middle main grids, namely from left to right or from right to left the
2nd, the secondary grid of son between the 3rd are the secondary grid of boundary, using secondary grid of demarcating as boundary, and the secondary grid of other sons are divided into A lines with left, A lines
With right two regions, wherein, A lines have the secondary grid of 1 cross-talk with a left side, and A lines have the secondary grid of 1 cross-talk with the right side.As shown in figure 3, as a kind of excellent
Embodiment is selected, the width of A lines using the secondary grid of 1 left cross-talk is gradually reduced as along gradual change direction, A lines are with the secondary grid of 1 right cross-talk
Width gradually to increase along gradual change direction.With reference to Fig. 3, as another preferred embodiment, A lines are with 1 left cross-talk pair
The width of grid is gradually increases along gradual change direction, and the width of A lines using the secondary grid of 1 right cross-talk gradually subtracts as along gradual change direction
It is small.
The gradual change direction of the present embodiment can be such as the arrow direction in Fig. 2 or 3 or as in Fig. 2 or 3
Arrow rotates 180 ° of directions.
In summary, along gradual change direction, the width of secondary grid gradually increases in some sections, gradually subtracts in some sections
It is small, so as to be gradual change form per the width of pair grid.
The utility model has following advantages compared with prior art：
1st, positive electrode silver paste consumption is reduced；
2nd, reduce positive electrode and stop area；
3rd, cell piece conversion efficiency is improved.
Technical principle of the present utility model is described above in association with specific embodiment.These descriptions are intended merely to explain this reality
With new principle, and the limitation to the utility model protection domain can not be construed in any way.Based on explanation herein,
Those skilled in the art, which would not require any inventive effort, can associate other embodiments of the present utility model,
These modes are fallen within protection domain of the present utility model.
Claims (10)
1. a kind of solar battery sheet printing screen plate, including frame, the interior parallel of the frame be interval with many main grids with
And some secondary grid perpendicular to the main grid, it is characterised in that the every secondary grid include middle secondary grid and positioned at described
The secondary grid in two edges at middle pair grid two ends, the middle secondary grid include many cross-talk pairs being located between adjacent two main grids
Grid, the secondary grid in two edges are located between two sides of the frame and the corresponding main grid respectively, by the secondary grid
One of bearing of trend be defined as gradual change direction, the width of the secondary grid of son and the secondary grid in the edge is along the gradual change side
To linear change, the width maximum of the secondary grid in two edges at the corresponding main grid,
The center line of the frame is set to A lines, and the A lines are parallel to the main grid, radical >=3 of the main grid,
When the radical of the main grid is odd number, the A lines are overlapped with positioned at a most middle main grid, positioned at the A
The secondary grid of the son of line both sides are symmetrical arranged centered on the A lines；
When the radical of the main grid is even number, the secondary grid of the son between two most middle adjacent main grids are set to
The secondary grid of boundary, other described secondary grid of son positioned at the secondary grid two ends of the boundary are symmetrical arranged centered on the A lines.
2. solar battery sheet printing screen plate according to claim 1, it is characterised in that the secondary grid of son, the edge
Secondary grid include a big end A and the small end B being oppositely arranged, wherein, the width of the big end A is 20 μm -35 μm, the small end
B width is 10 μm -20 μm.
3. solar battery sheet printing screen plate according to claim 1, it is characterised in that two main grids of arbitrary neighborhood
Between spacing it is identical, the radical of the main grid is 3-16 roots.
4. solar battery sheet printing screen plate according to claim 1, it is characterised in that the length of the secondary grid of son with too
The distance between the main grid of positive energy cell piece is identical.
5. solar battery sheet printing screen plate according to claim 1, it is characterised in that the length of the secondary grid in the edge with
Spacing between the edge and correspondence main grid of solar battery sheet is identical.
6. solar battery sheet printing screen plate according to claim 1, it is characterised in that the length and the sun of the main grid
The length of energy cell piece is identical, and the width of the main grid is 300 μm -800 μm.
7. solar battery sheet printing screen plate according to claim 1, it is characterised in that the secondary grid of arbitrary neighborhood two
Between spacing it is identical, the radicals of the secondary grid is 80-200 roots.
8. the solar battery sheet printing screen plate according to claim any one of 1-7, it is characterised in that also including screen frame,
Screen cloth is provided with the screen frame, the frame and the main grid, the secondary grid are on the screen cloth.
9. the solar battery sheet printing screen plate according to claim any one of 1-7, it is characterised in that when the main grid
When radical is odd number, the width positioned at the secondary grid of the son of the A lines side gradually increases each along gradual change direction, positioned at described
The width of multiple secondary grid of son of A line opposite sides is gradually reduced each along gradual change direction.
10. the solar battery sheet printing screen plate according to claim any one of 1-7, it is characterised in that when the main grid
Radical be even number when,
The width of the secondary grid of boundary is gradually reduced along gradual change direction, the secondary grid edge of the son positioned at the secondary grid one end of the boundary
Gradual change direction to be gradually reduced, the secondary grid of the son positioned at the secondary grid other end of the boundary gradually increase along gradual change direction；Or
The width of the secondary grid of boundary gradually increases along gradual change direction, the secondary grid edge of the son positioned at the secondary grid one end of the boundary
Gradual change direction to be gradually reduced, the secondary grid of the son positioned at the secondary grid other end of the boundary gradually increase along gradual change direction.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720174399.4U CN206589442U (en) | 2017-02-24 | 2017-02-24 | A kind of solar battery sheet printing screen plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720174399.4U CN206589442U (en) | 2017-02-24 | 2017-02-24 | A kind of solar battery sheet printing screen plate |
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| Publication Number | Publication Date |
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| CN206589442U true CN206589442U (en) | 2017-10-27 |
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ID=60125695
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| CN201720174399.4U Active CN206589442U (en) | 2017-02-24 | 2017-02-24 | A kind of solar battery sheet printing screen plate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113442561A (en) * | 2021-06-24 | 2021-09-28 | 通威太阳能（合肥）有限公司 | Battery piece screen printing device and method and machining process of tile folding assembly |
-
2017
- 2017-02-24 CN CN201720174399.4U patent/CN206589442U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113442561A (en) * | 2021-06-24 | 2021-09-28 | 通威太阳能（合肥）有限公司 | Battery piece screen printing device and method and machining process of tile folding assembly |
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