CN220720579U - Metal screen grid line hole structure - Google Patents
Metal screen grid line hole structure Download PDFInfo
- Publication number
- CN220720579U CN220720579U CN202321953483.8U CN202321953483U CN220720579U CN 220720579 U CN220720579 U CN 220720579U CN 202321953483 U CN202321953483 U CN 202321953483U CN 220720579 U CN220720579 U CN 220720579U
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- metal
- grid line
- metal screen
- layer
- holes
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- 239000002184 metal Substances 0.000 title claims abstract description 189
- 238000005491 wire drawing Methods 0.000 claims description 8
- 230000035699 permeability Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 6
- 239000007788 liquid Substances 0.000 description 3
- QNRATNLHPGXHMA-XZHTYLCXSA-N (r)-(6-ethoxyquinolin-4-yl)-[(2s,4s,5r)-5-ethyl-1-azabicyclo[2.2.2]octan-2-yl]methanol;hydrochloride Chemical compound Cl.C([C@H]([C@H](C1)CC)C2)CN1[C@@H]2[C@H](O)C1=CC=NC2=CC=C(OCC)C=C21 QNRATNLHPGXHMA-XZHTYLCXSA-N 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Abstract
The utility model provides a metal screen grating hole structure, which comprises at least two layers of metal screens, wherein each layer of metal screen is respectively provided with grating holes, the grating holes of the upper layer of metal screen are not smaller than those of the lower layer of metal screen, a plurality of metal wires are arranged in the grating holes of the non-bottom layer of metal screen, the metal wires in the grating holes of the same layer of metal screen are arranged in parallel or in a crossed manner, the width range of a single metal wire is set to be 1-99 mu m, and the thickness range of each layer of metal wire is set to be 0.01-79 mu m. Through the mode, the problem that the existing full-opening metal screen plate is insufficient in strength in stretching is solved, and meanwhile good permeability in paste printing is guaranteed.
Description
Technical Field
The utility model relates to the technical field of solar photovoltaic power generation, in particular to a metal screen grid line hole structure.
Background
The metal screen is a main tool for processing metal wires between solar photovoltaic power generation cells. The method mainly comprises a screen region and grid line holes used for printing, wherein when a metal wire is processed, metal slurry is printed onto a solar cell through the grid line holes to form the metal wire.
Then, in order to ensure the strength of the full-open metal screen, metal wires are usually arranged in the grid line holes. For example, chinese patent CN218489292U discloses a solar cell secondary grid printing screen plate, which comprises a screen main body, wherein the screen main body is provided with a fine grid, the fine grid is composed of pure open fine line areas and metal mesh areas, and two adjacent pure open fine line areas are provided with a metal mesh area. Although the metal mesh area is provided in the pure open fine line area, the specific structure of the metal mesh is not limited, and referring to fig. 1 of the specification, the strength of the metal mesh plate is hardly ensured in the metal mesh area of the structure in the actual production process.
Disclosure of Invention
In order to solve the problems, the utility model provides a metal screen grid line hole structure, which solves the problem that the existing metal screen is insufficient in strength during stretching and ensures good permeability during paste printing.
The main content of the utility model comprises: the utility model provides a metal half tone grating line hole structure, includes two-layer metal half tone at least, and the grating line hole has been seted up respectively to every layer of metal half tone, and the grating line hole of upper strata metal half tone is not less than the grating line hole of lower floor's metal half tone, is provided with a plurality of metal lines in the grating line hole of non-bottom layer metal half tone, the metal line parallel arrangement or the cross arrangement in the same layer metal half tone grating line hole, the width scope of single metal line sets up to 1 mu m-99 mu m, the thickness scope of every layer of metal line sets up to 0.01 mu m-79 mu m.
Preferably, the grid line holes are arranged in one or more of rectangular, round, diamond-shaped and oval shapes.
Preferably, when the metal lines are arranged in parallel, the distances between adjacent two metal lines may be equal or unequal.
Preferably, the width and thickness of each metal line may be equal or unequal.
Preferably, the distance D between two adjacent metal lines is set to 1 μm-199 μm.
Preferably, the metal wires and the metal screen are in an integral structure or a non-integral structure.
Preferably, the connection part of the metal wire and the metal screen plate is provided with a chamfer structure.
Preferably, the upper surface of the non-grid line area of the metal screen plate is provided with a plurality of resistance structures.
Preferably, the resistance structure is a groove, a bulge, a microscopic wave-like relief surface, a linear wire drawing or a circular wire drawing.
The utility model has the beneficial effects that:
through the design to the downthehole wire structure of metal mesh grid, the intensity when having increased the metal mesh grid tensile has guaranteed the transmissivity of thick liquids simultaneously, can prevent that it from being when tensile, mode deformation, its during the printing, the structure in grid hole is stable relatively, and the metal wire form of printing is better to guaranteed the printing quality of metal wire, promoted the stability of connecting between the solar wafer.
Drawings
FIG. 1 is a schematic diagram of a metal grid line hole structure according to example 1;
FIG. 2 is a schematic diagram of a metal grid line hole structure according to example 2;
FIG. 3 is a schematic diagram of another embodiment of a metal grid line hole structure of embodiment 2;
FIG. 4 is a schematic diagram of a metal grid line hole structure according to example 3;
FIG. 5 is a schematic view in section A-A of FIG. 4;
FIG. 6 is a schematic diagram of a metal grid line hole structure according to example 4;
FIG. 7 is a schematic diagram of a metal grid line hole structure of example 5;
reference numerals: 1. metal screen plate 2, grid line hole 3, wire, 4, chamfer structure, 5, resistance structure, 21, first grid line hole, 22, second grid line hole.
Detailed Description
The technical scheme protected by the utility model is specifically described below with reference to the accompanying drawings.
Examples
As shown in fig. 1, a metal screen grating hole structure comprises two layers of metal screens 1, each layer of metal screen is provided with grating holes 2, wherein the grating holes of the upper layer of metal screen are identical to those of the grating holes of the lower layer of metal screen in structure, each grating hole of the upper layer of metal screen comprises rectangular and rhombic grating holes, a plurality of metal wires 3 are arranged in the grating holes of the upper layer of metal screen, no metal wires are arranged in the grating holes of the lower layer of metal screen, the metal wires 3 in the grating holes of the upper layer of metal screen are arranged in parallel, the distances between two adjacent metal wires can be equal or unequal, the distance D between the two adjacent metal wires 3 is 1-199 microns, the width range of a single metal wire 3 is 1-99 microns, the thickness range is 0.01-79 microns, and the width and thickness of each metal wire can be equal or unequal. Compared with the traditional metal screen, the metal screen is provided with the metal wires 3 in the grid line holes of the metal screen, the size and the distance of the metal wires 3 are further limited, the strength of the metal screen 1 in stretching is improved, and the permeability of slurry is ensured. When the metal screen plate 1 is stretched, the shape of the grid line hole 3 cannot be changed, and when the metal paste is printed on the battery piece through the grid line hole 2 during printing, the metal screen plate is more stable in shape, is not easy to deform, is not uneven in height and the like, and ensures the quality of metal wires.
Examples
As shown in fig. 2 and 3, embodiment 2 also includes two layers of metal mesh plates, and also includes rectangular and rhombic grid line holes, and the shape of the upper layer of metal mesh plate grid line holes 2 is the same as and corresponds to the shape of the lower layer of metal mesh plate grid line holes. The difference is that in the diamond-shaped gate line holes, the grid-shaped metal lines 3 are arranged, wherein the width of each metal line 3 is set to 1-99 μm, and the thickness range is set to 0.01-79 μm. Compared with parallel metal wires, the cross structural design of the grid-shaped metal wires has better strength, and ensures that the grid wire holes are not easy to deform when being stretched, thereby ensuring the forming quality of the metal wires.
Further, the shape enclosed by each small grid can be one or a combination of a plurality of rectangles, diamonds, circles, ovals and polygons.
Further, the shapes of the metal lines in the adjacent two gate line holes may be the same or different, as shown in fig. 3.
Examples
As shown in fig. 4 and 5, a metal screen grating hole structure comprises two layers of metal screens, each layer of metal screen is provided with a grating hole 2, the width of the grating hole 2 of the upper layer of metal screen is larger than that of the grating hole of the lower layer of metal screen, the grating holes 2 of the upper layer of metal screen and the grating holes of the lower layer of metal screen are both provided with rectangular structures, a plurality of metal wires 3 are arranged in the grating holes of the upper layer of metal screen, no metal wires are arranged in the grating holes of the lower layer of metal screen, in the embodiment, the metal wires 3 and the metal screen are in an integrated structure, a chamfer structure 4 is further arranged at the junction of the grating holes 2 and the metal screen 1, the chamfer structure 4 can be provided as a round chamfer or a straight chamfer structure, and the metal wires of the integrated structure further strengthen the structural strength of the grating holes 2, and the grating holes 2 are not easy to deform when the metal screen 1 is stretched, so that the forming quality of metal wires is ensured.
Examples
As shown in fig. 6, a metal screen grating hole structure comprises two layers of metal screens, each layer of metal screen is provided with grating holes 2, the width of the grating holes 2 of the upper layer of metal screen 1 is larger than that of the grating holes of the lower layer of metal screen, the grating holes 2 of the upper layer of metal screen 1 and the grating holes of the lower layer of metal screen are all provided with rectangular structures, a plurality of metal wires 3 are arranged in the grating holes 2 of the upper layer of metal screen, no metal wires are arranged in the grating holes of the lower layer of metal screen, in this embodiment, the metal wires 3 and the metal screen 1 are in an integrated structure, the distances between the metal wires 3 and the metal wires 3 can be equal or unequal, and the widths of the metal wires 3 can also be equal or unequal. The juncture of the grid line hole 2 and the metal screen plate 1 is also provided with a chamfering structure 4, and the chamfering structure 4 can be a round chamfering or straight chamfering structure. The design of the chamfer structure 4 can increase the reliability of connection between the metal wire 3 and the metal screen 1, and the connection part is not easy to break, twist and the like.
Further, a plurality of resistance structures 5 are arranged on the upper surface of the non-grid line area of the metal screen plate 1, and the resistance structures 5 are grooves, bulges, microscopic observation wave-like undulating surfaces, linear wiredrawing and circular wiredrawing. Through the setting of resistance structure 5, the frictional force of metal half tone when the scraper blade has been increased to prevent because metal half tone surface is too smooth, and lead to metal thick liquids to directly scratch from the grid line hole surface, and the condition that does not fall into the grid line downthehole. Through the setting of resistance structure, the shaping quality of metal wire has been increased to finally guaranteed the stability of connecting between the photovoltaic cell piece.
Examples
As shown in fig. 7, a metal screen grating hole structure comprises two layers of metal screens, each layer of metal screen is provided with grating holes, wherein the width of a grating hole 2 of an upper layer of metal screen is larger than that of a grating hole of a lower layer of metal screen, the grating hole 2 of the upper layer of metal screen is of a rectangular structure, the grating hole of the lower layer of metal screen is of a structure combining with a rectangle, a plurality of metal wires 3 are arranged in the grating hole of the upper layer of metal screen, no metal wires are arranged in the grating hole of the lower layer of metal screen, in the embodiment, the metal wires 3 and the metal screen 1 are of an integrated structure, the distances between the metal wires 3 and the metal wires 3 can be equal or unequal, the widths of the metal wires 3 can also be equal or unequal, a chamfer structure 4 is further arranged at the junction of the grating hole 2 and the metal screen 1, and the chamfer structure 4 can be of a round chamfer or straight chamfer structure. The design of the chamfer structure 4 can increase the reliability of connection between the metal wire 3 and the metal screen 1, and the connection part is not easy to break, twist and the like.
Further, a plurality of resistance structures 5 are arranged on the upper surface of the non-grid line area of the metal screen plate 1, and the resistance structures 5 are grooves, bulges, microscopic observation wave-like undulating surfaces, linear wiredrawing and circular wiredrawing. Through the setting of resistance structure, increased the frictional force of metal half tone when the scraper blade to prevent because metal half tone surface is too smooth, and lead to metal thick liquids to directly scratch from the grid line hole surface, and do not fall into the condition in the grid line hole. Through the setting of resistance structure, the shaping quality of metal wire has been increased to finally guaranteed the stability of connecting between the photovoltaic cell piece.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.
Claims (9)
1. The metal screen plate grid line hole structure is characterized by comprising at least two layers of metal screen plates, wherein each layer of metal screen plate is provided with grid line holes respectively, the grid line holes of the upper layer of metal screen plate are not smaller than the grid line holes of the lower layer of metal screen plate, a plurality of metal lines are arranged in the grid line holes of the non-bottom layer of metal screen plate, the metal lines in the grid line holes of the same layer of metal screen plate are arranged in parallel or in a crossed manner, the width range of a single metal line is set to be 1-99 mu m, and the thickness range of each layer of metal line is set to be 0.01-79 mu m.
2. The metal grid line hole structure according to claim 1, wherein the grid line holes are arranged in one or more of rectangular, circular, diamond-shaped and oval shapes.
3. The metal grid line hole structure according to claim 1, wherein when the metal lines are arranged in parallel, the distances between two adjacent metal lines may be equal or unequal.
4. A metal grid line aperture structure according to claim 1 or 3, wherein the width and thickness of each metal line may be equal or unequal.
5. A metal grid line hole structure according to claim 3, wherein the distance D between two adjacent metal lines is set to 1 μm-199 μm.
6. The metal screen grid line hole structure according to claim 1, wherein the metal lines and the metal screen are in an integral structure or a non-integral structure.
7. The metal screen grid line hole structure according to claim 6, wherein a chamfer structure is arranged at the joint of the metal line and the metal screen.
8. The metal screen grid line hole structure according to claim 1, wherein a plurality of resistance structures are arranged on the upper surface of the non-grid line area of the metal screen.
9. The metal grid line hole structure according to claim 8, wherein the resistance structure is grooves, protrusions, microscopic wave-like undulating surfaces, linear wire drawing, circular wire drawing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321953483.8U CN220720579U (en) | 2023-07-24 | 2023-07-24 | Metal screen grid line hole structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321953483.8U CN220720579U (en) | 2023-07-24 | 2023-07-24 | Metal screen grid line hole structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220720579U true CN220720579U (en) | 2024-04-05 |
Family
ID=90525583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321953483.8U Active CN220720579U (en) | 2023-07-24 | 2023-07-24 | Metal screen grid line hole structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220720579U (en) |
-
2023
- 2023-07-24 CN CN202321953483.8U patent/CN220720579U/en active Active
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