CN214821751U - Graph gradual change structure for improving screen printing EL broken grid - Google Patents
Graph gradual change structure for improving screen printing EL broken grid Download PDFInfo
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- CN214821751U CN214821751U CN202120828117.4U CN202120828117U CN214821751U CN 214821751 U CN214821751 U CN 214821751U CN 202120828117 U CN202120828117 U CN 202120828117U CN 214821751 U CN214821751 U CN 214821751U
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Abstract
The utility model discloses an improve figure gradual change structure of silk-screen printing EL broken gate, including the vice bars of main bars and a plurality of perpendicular to main bars, it is same vice bars are connected gradually by the vice bars section of a plurality of linearity degressive gradual changes and are constituteed, pass through connecting rod fixed connection between two adjacent vice bars sections on same vice bars, between upper and lower adjacent vice bars pass through supporting grid fixed connection between the connecting rod, the fixed water conservancy diversion slide that is provided with of supporting grid direction is kept away from along on the supporting grid lateral wall, the utility model discloses in use carries out a lot of gradual changes through the vice bars section of different gradual change rates for thick liquids pass through black nature stronger, be difficult for plugging up thick liquids or broken gate, still connect adjacent vice bars through the supporting grid, make vice bars more firm, reduce the emergence probability of disconnected gate situation, and the practicality is very strong, is worth promoting very much.
Description
Technical Field
The utility model relates to a photovoltaic cell production technical field specifically is a figure gradual change structure of improving the disconnected bars of screen printing EL.
Background
In the photovoltaic industry, screen printing is widely used for forming a front electrode of a solar cell due to the advantages of simple and precise process, easy control and the like. In the manufacturing process of the solar cell, a screen printing plate without a net knot adopts a 0-degree net stretching mode, the net knot is avoided, and only steel wires vertical to the auxiliary grid lines are arranged in the auxiliary grid lines. The screen printing plate without the screen knots has better line flatness and line type after printing and obvious height-width ratio advantage.
In the prior art, a solar cell front electrode screen printing plate with application number "201620657339.3" comprises a main grid and a secondary grid perpendicular to the main grid, wherein the secondary grid comprises a constant section and a gradual section which gradually narrows along a printing direction, and the gradual section has a technical effect of reducing poor printing.
However, the prior art still has more defects, such as adoption of the auxiliary grid with a single linear gradual change section, more broken grids are printed by matching the positive silver paste under high-speed printing, especially the ink permeability of the auxiliary grid paste on two sides of the main grid is poor, holes are easily blocked, and the grids are easily broken, so that the production loss is brought.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an improve disconnected bars of screen printing EL figure gradual change structure to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides an improve pattern gradual change structure of screen printing EL broken gate, includes main grid and a plurality of vice bars perpendicular to main grid, arbitrary one the vice bar width is along keeping away from main grid direction degressive gradual change many times, and the vice bar is for the first time gradual change to conventional vice bar width, and the gradual change length of same vice bar many times is along keeping away from main grid direction and dwindle in proper order.
Preferably, the width of the sub-gate is gradually changed to 30 microns from the conventional sub-gate for the first time.
Preferably, each time of the descending and gradual change of the auxiliary grid is linear descending and gradual change.
Preferably, the multiple decreasing gradient rates of the same auxiliary grid are sequentially reduced along the direction away from the main grid.
Preferably, the same auxiliary grid is formed by sequentially connecting a plurality of auxiliary grid sections with linear descending and gradual change, and the descending and gradual change rates of the plurality of auxiliary grid sections are sequentially reduced along the direction away from the main grid.
Preferably, two adjacent auxiliary grid sections on the same auxiliary grid are detachably connected through a connecting rod.
Preferably, the connecting rods between the upper and lower adjacent auxiliary grids are fixedly connected through a support grid.
Preferably, flow guide slideways are fixedly arranged on two side walls of the support grid.
Preferably, two auxiliary grid sections on the same auxiliary grid are respectively a first auxiliary grid section and a second auxiliary grid section.
Preferably, the width of the widest end of the first auxiliary gate section is 100 micrometers, the width of the narrowest end of the first auxiliary gate section is 30 micrometers, the gradual change distance is 3 millimeters, the distance between the widest end of the first auxiliary gate section and the main gate is 0.6 millimeter, the width of the widest end of the second auxiliary gate section is 30 micrometers, the width of the narrowest end of the second auxiliary gate section is 25 micrometers, and the gradual change distance is 0.3 millimeter.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the overall structure optimization of the present invention;
fig. 3 is an enlarged schematic view of the structure of the area a in fig. 2.
In the figure: the device comprises a main grid 1, an auxiliary grid section 2, an auxiliary grid section I21, an auxiliary grid section II 22, a connecting rod 3, a supporting grid 4 and a flow guide slideway 5.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution:
the utility model provides an improve figure gradual change structure of screen printing EL broken gate, including main grid 1 and a plurality of perpendicular to main grid 1's auxiliary grid, arbitrary one auxiliary grid width is along keeping away from main grid 1 direction degressive gradual change many times, and the auxiliary grid is gradual change for the first time to conventional auxiliary grid width, and the gradual change length of same auxiliary grid many times is shortened along keeping away from main grid 1 direction in proper order, optimize the auxiliary grid through degressive gradual change many times, under high printing speed, thick liquids can push down through the grid line to a great extent, make thick liquids pass through the china ink nature stronger, it is difficult for blocking up thick liquids or broken grid, guarantee printing productivity and product quality.
As a preference, the width of the sub-gate is first graded to a conventional sub-gate of 30 microns.
Furthermore, each degressive gradual change of the same auxiliary grid is a linear degressive gradual change, and the uniform linear degressive gradual change enables the extrusion and the falling of the slurry to be more uniform, further prevents the blockage and the grid breakage, and ensures the printing capacity and the product quality.
Furthermore, the multiple degressive gradual change rate of the same auxiliary grid is reduced in sequence along the direction of keeping away from the main grid 1, the width of the auxiliary grid far away from the main grid 1 is narrow, the grid is more prone to breaking under the extrusion of slurry, the auxiliary grid width at the position far away from the main grid 1 is larger by reducing the gradual change rate, the firmness of the auxiliary grid is improved, and the auxiliary grid far away from the main grid 1 is prevented from being broken due to material blockage.
Preferably, the same auxiliary grid is formed by sequentially connecting a plurality of linearly gradually decreasing and gradually changing auxiliary grid sections 2, the gradually decreasing and gradually changing rates of the plurality of auxiliary grid sections 2 are sequentially reduced along the direction away from the main grid 1, the auxiliary grids are formed by sequentially connecting the plurality of auxiliary grid sections 2, the auxiliary grid sections 2 with different gradually changing rates are manufactured respectively, and then the auxiliary grid sections 2 are sequentially connected to form the auxiliary grid.
Furthermore, two adjacent auxiliary grid sections 2 on the same auxiliary grid are detachably connected through a connecting rod 3, when one auxiliary grid section 2 is broken, the broken auxiliary grid section 2 is detached and replaced, the auxiliary grid does not need to be integrally replaced, and the production cost is saved.
Furthermore, the connecting rods 3 between the upper and lower adjacent auxiliary grids are fixedly connected through the supporting grids 4, and the supporting grids 4 are connected with the adjacent auxiliary grids to provide supporting force for the adjacent auxiliary grids, so that the auxiliary grids are more stable, and the occurrence probability of grid breaking is reduced.
Furthermore, flow guide slideways 5 are fixedly arranged on two side walls of the support grid 4, and the flow guide slideways 5 play a flow guide role in printing slurry, so that the slurry is extruded smoothly, and the grid breaking problem caused by slurry blockage is further prevented.
Specifically, two sub-grid sections 2 on the same sub-grid are respectively a first sub-grid section 21 and a second sub-grid section 22.
As an example:
the width of the widest end of the first auxiliary grid section 21 is 100 micrometers, the width of the narrowest end of the first auxiliary grid section 21 is 30 micrometers, the gradual change distance is 3 millimeters, the distance between the widest end of the first auxiliary grid section 21 and the main grid 1 is 0.6 millimeter, the width of the widest end of the second auxiliary grid section 22 is 30 micrometers, the width of the narrowest end of the second auxiliary grid section is 25 micrometers, and the gradual change distance is 0.3 millimeter.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A figure gradual change structure for improving screen printing EL broken grid comprises a main grid (1) and a plurality of auxiliary grids vertical to the main grid (1), and is characterized in that: the width of any one auxiliary grid is gradually reduced and changed for a plurality of times along the direction far away from the main grid (1), the auxiliary grid is gradually changed to the width of the conventional auxiliary grid for the first time, and the gradually-changed length of the same auxiliary grid for a plurality of times is sequentially reduced and shortened along the direction far away from the main grid (1).
2. The structure of claim 1, wherein the pattern gradient for improving screen printing EL broken gate is as follows: the width of the auxiliary gate is gradually changed to 30 microns from the conventional auxiliary gate for the first time.
3. The structure of claim 1, wherein the pattern gradient for improving screen printing EL broken gate is as follows: and each time of the same secondary grid is linearly gradually decreased and gradually changed.
4. The structure of claim 3, wherein the pattern gradient for improving screen printing EL broken gate is as follows: the multiple decreasing gradient rates of the same auxiliary grid are sequentially reduced along the direction far away from the main grid (1).
5. The structure of claim 4, wherein the pattern gradient for improving screen printing EL broken gate is as follows: the same auxiliary grid is formed by sequentially connecting a plurality of linear gradually-decreasing and gradually-changing auxiliary grid sections (2), and the gradually-decreasing and gradually-changing rates of the plurality of auxiliary grid sections (2) are sequentially reduced along the direction far away from the main grid (1).
6. The structure of claim 5, wherein the pattern gradient for improving screen printing EL broken gate is as follows: two adjacent auxiliary grid sections (2) on the same auxiliary grid are detachably connected through a connecting rod (3).
7. The structure of claim 6, wherein the pattern gradient for improving screen printing EL broken gate is as follows: the connecting rods (3) between the upper and lower adjacent auxiliary grids are fixedly connected through the supporting grids (4).
8. The structure of claim 7, wherein the pattern gradient for improving screen printing EL broken gate is as follows: and flow guide slideways (5) are fixedly arranged on the two side walls of the supporting grid (4).
9. The structure of any one of claims 5 to 8, wherein the pattern gradient for improving screen printing EL broken gate comprises: and two auxiliary grid sections (2) on the same auxiliary grid are respectively a first auxiliary grid section (21) and a second auxiliary grid section (22).
10. The structure of claim 9, wherein the pattern gradient for improving screen printing EL broken gate is as follows: the width of the widest end of the first auxiliary grid section (21) is 100 micrometers, the width of the narrowest end of the first auxiliary grid section (21) is 30 micrometers, the gradual change distance is 3 millimeters, the distance between the widest end of the first auxiliary grid section (21) and the main grid (1) is 0.6 millimeter, the width of the widest end of the second auxiliary grid section (22) is 30 micrometers, the width of the narrowest end of the second auxiliary grid section is 25 micrometers, and the gradual change distance is 0.3 millimeter.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120828117.4U CN214821751U (en) | 2021-04-22 | 2021-04-22 | Graph gradual change structure for improving screen printing EL broken grid |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120828117.4U CN214821751U (en) | 2021-04-22 | 2021-04-22 | Graph gradual change structure for improving screen printing EL broken grid |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114122167A (en) * | 2021-12-14 | 2022-03-01 | 苏州腾晖光伏技术有限公司 | MWT battery positive pole structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114122167A (en) * | 2021-12-14 | 2022-03-01 | 苏州腾晖光伏技术有限公司 | MWT battery positive pole structure |
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Effective date of registration: 20220527 Address after: 230088 southwest corner of the intersection of Changning Avenue and Xiyou Road, high tech Zone, Hefei City, Anhui Province Patentee after: TONGWEI SOLAR ENERGY (ANHUI) Co.,Ltd. Address before: No. 888, Changning Avenue, high tech Zone, Hefei City, Anhui Province, 230088 Patentee before: TONGWEI SOLAR ENERGY (HEFEI) Co.,Ltd. |
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| TR01 | Transfer of patent right |