Metal screen plate

Abstract

The utility model discloses a metal screen which solves the problem that a connecting bridge is easy to break. The metal screen plate comprises at least two layers of metal screen plates, grid line holes are formed in each layer of metal screen plate, connecting bridges are arranged in the grid line holes of the metal screen plate on the non-bottom layer at intervals in the length direction, a penetrating hollow-out part is arranged between every two adjacent connecting bridges, and the cross section of each connecting bridge is in the shape of a nonlinear line.

Description

Technical Field

[0001] The utility model relates to the technical field of screen plates, in particular to a metal screen plate. Background Art

[0002] Screen technology has the advantages of simple process, large graphic design space, and suitability for large-scale production, and has become a widely used technology in the electronics field. Taking the field of solar cells as an example, the printed screen is an important tool for printing the electrodes of solar cells. The printed screen generally includes a screen frame and a mesh stretched in the screen frame. Conductive slurry is poured on the screen, and a scraper is used to drive the conductive slurry to move on the mesh, so that the conductive slurry is squeezed through the grid line holes on the mesh onto the solar cell, forming a corresponding pattern on the solar cell to form the electrode of the solar cell.

[0003] At present, in order to ensure the life and strength of the screen during use, a connecting bridge is set between the grid line holes, but the existing connecting bridges are all straight and cannot be stretched. Figure 1 As shown, such a connecting bridge is prone to breakage during use, which will affect the use of the screen. Therefore, the applicant proposed a new screen structure after careful study. Utility Model Content

[0004] The utility model is to avoid the shortcomings of the prior art and provides a metal screen, which solves the problem that the connecting bridge is prone to breakage.

[0005] A metal screen includes at least two layers of metal screens, each layer of the metal screen is provided with grid line holes, connecting bridges are arranged at intervals along the length direction in the grid line holes of the non-bottom metal screen, and there are through hollow parts between adjacent connecting bridges, and the cross-sectional shape of the connecting bridges is a non-straight line.

[0006] Beneficial effects of this application:

[0007] In the present application, the existing straight-line connecting bridge is improved into a non-straight line so that the connecting bridge has a certain buffering property. When the screen of this structure is printed, the non-straight lines can be unfolded and the connecting bridge has a certain stretching space, thereby avoiding being broken by long-term use and extending the service life of the screen.

[0008] Preferably, the cross-sectional shape of the connecting bridge is a curve.

[0009] Preferably, the cross-sectional shape of the connecting bridge is a herringbone structure.

[0010] Preferably, the thickness of the connecting bridge is 5-150 μm.

[0011] Preferably, the distance between adjacent connecting bridges is 5-500 μm.

[0012] Preferably, the grid line hole is a combination of one or more of a rectangle, a circle, a diamond, and an ellipse.

[0013] Preferably, the connecting bridge and the metal mesh are an integrated structure or a non-integrated structure.

[0014] Preferably, the width of the connecting bridge is 3-30 μm. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the connecting bridge in the existing screen.

[0016] Figure 2 It is a top view of the first embodiment of the connecting bridge in the utility model.

[0017] Figure 3 A top view of the second embodiment of the connecting bridge in the utility model

[0018] Description of the accompanying drawings: 1. Grid line hole, 2. Connection bridge. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 2-3 A metal screen includes at least two layers of metal screens, each layer of the metal screens is provided with grid line holes, and connecting bridges are arranged in the grid line holes of the non-bottom metal screens at intervals along the length direction, and there is a through hollow portion between adjacent connecting bridges, and the cross-sectional shape of the connecting bridges is a non-straight line. In the present application, the existing straight-line connecting bridges are improved into non-straight lines, so that the connecting bridges have a certain buffering property. When the screen of the structure is printed, the non-straight lines can be unfolded, and the connecting bridges have a certain stretching space, so as to avoid being broken after long-term use, thereby extending the service life of the screen.

[0021] In this embodiment, the cross-sectional shape of the connecting bridge is a curve, so that the connecting bridge can be unfolded during printing to produce a certain buffering effect.

[0022] In this embodiment, the cross-sectional shape of the connecting bridge is a herringbone structure, so that the connecting bridge can be unfolded during printing to produce a certain buffering effect.

[0023] In this embodiment, the thickness of the connecting bridge is 5-150 μm.

[0024] In this embodiment, the spacing between adjacent connecting bridges is 5-500 μm.

[0025] In this embodiment, the gate line hole is a combination of one or more shapes selected from rectangle, circle, diamond, and ellipse.

[0026] In this embodiment, the connecting bridge and the metal screen are an integrated structure or a non-integrated structure.

[0027] In this embodiment, the width of the connecting bridge is 3-30 μm.

[0028] In this embodiment, the cross-sectional shape of the connecting bridge may also be M-shaped, L-shaped, W-shaped, V-shaped, S-shaped, etc.

[0029] In this embodiment, the connecting bridge and the metal screen are both made of nickel alloy material.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A metal screen, comprising at least two layers of metal screens, each layer of the metal screens being provided with grid line holes, characterized in that: Connection bridges are arranged at intervals along the length direction in the grid line holes of the non-bottom metal screen, and there are penetrating hollow parts between adjacent connection bridges. The cross-sectional shape of the connection bridge is a non-straight line.

2. A metal screen according to claim 1, characterized in that: The cross-section of the connecting bridge is in the shape of a curve.

3. A metal screen according to claim 1, characterized in that: The cross-section of the connecting bridge is a herringbone structure.

4. A metal screen according to claim 2 or 3, characterized in that: The thickness of the connecting bridge is 5-150 μm.

5. A metal screen according to claim 4, characterized in that: The spacing between adjacent connecting bridges is 5-500 μm.

6. The metal screen according to claim 1, characterized in that: The gate line holes are in the shape of a rectangle, a circle, a diamond, an ellipse or a combination of one or more shapes.

7. A metal screen according to claim 5, characterized in that: The connecting bridge and the metal screen are an integrated structure or a non-integrated structure.

8. The metal screen according to claim 1, characterized in that: The width of the connecting bridge is 3-30 μm.

9. The metal screen according to claim 1, characterized in that: The metal screen and the connecting bridge are made of nickel alloy.

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