CN220073569U - High-efficient stable laser scribing machine applied to thin film solar cell - Google Patents

Abstract

The utility model provides a high-efficiency stable laser scribing machine applied to a thin film solar cell, which comprises a supporting platform provided with an input end and an output end, a positioning tool capable of displacing along the Y direction of the supporting platform, and a laser module arranged below the supporting platform and between the input end and the output end, wherein the supporting platform is also provided with a positioning mechanism, Y-direction guide rails distributed along the length direction of the supporting platform are arranged on the supporting platform, the positioning tool is arranged on the Y-direction guide rails, the scribing machine adopts a lower processing mode, namely the laser module is fixed below the device, scribing in two directions is completed by moving or moving a vibrating mirror of a glass substrate, meanwhile, the glass substrate can be fixed and supported by matching with a positioning component and a fixing component, the flatness of the glass substrate is ensured, the lower processing mode of the laser module can greatly improve the stability and the production capacity of a laser path, the processing flatness of a large-size substrate is ensured, and the processing precision is further improved, and the scribing quality is ensured.

Description

High-efficient stable laser scribing machine applied to thin film solar cell

Technical Field

The utility model relates to the technical field of thin-film solar cell production, in particular to a high-efficiency and stable laser scribing machine applied to a thin-film solar cell.

Background

In the thin film solar cell laser scribing process, especially the three laser scribing processes of P1, P2 and P3, the traditional laser scribing equipment adopts a laser upper scribing mode, namely a laser module is arranged on the upper surface, and the design method leads to the complex laser path of the laser module. Because the laser module is arranged above the equipment, a plurality of laser modules are required to be arranged for improving productivity, the design is difficult, the stability of the laser module arranged above the equipment is poor, the light path is easy to deviate, the scribing deviation is easy to be caused by the upper mode of the laser module in view of the high precision requirement of the laser scribing process, the scribing efficiency is low, in addition, the complexity of the system is increased because the glass substrate needs to be overturned in advance in the processing process, and the film surface is easy to scratch after overturning, so that the scribing is not repairable. Therefore, the scheme of the upper laser module is not suitable for the laser scribing process with large capacity and large area.

Disclosure of Invention

In order to solve the technical problems, the utility model provides a lower processing mode of a laser module, namely, the laser module is fixed at the bottom of equipment, scribing is carried out through substrate movement, the scribing productivity is greatly improved while the flatness is ensured, and in addition, the stability of a laser light path and the flatness of a large-size substrate can be ensured, wherein the specific technical scheme is as follows:

the utility model provides a high-efficient stable laser scribing machine that is applied to thin film solar cell, is including being provided with the supporting platform of input and output, still including the location frock that can follow supporting platform Y to displacement and set up in the supporting platform below and lie in the laser module between input and the output, still be equipped with positioning mechanism on the supporting platform.

Preferably, the support platform is provided with Y-direction guide rails distributed along the length direction of the support platform, and the positioning tool is arranged on the Y-direction guide rails.

Preferably, the laser module comprises a laser component and a laser head, and the laser module is arranged on the supporting platform through a locating pin.

Preferably, the positioning mechanism comprises a positioning assembly and a fixing assembly, wherein the positioning assembly and the fixing assembly are arranged at the top of the positioning tool and positioned on the side edge of the supporting platform.

Preferably, the positioning assembly comprises a cylinder and a push rod arranged at the output end of the cylinder.

Preferably, the fixing component is a clamping jaw.

Preferably, the laser scribing machine further comprises a dust removing device.

According to the technical scheme, the utility model has the following beneficial effects:

1. in the utility model, the scribing machine adopts a lower processing mode, namely, a laser module is fixed below the equipment, scribing in two directions is completed by moving a glass substrate or moving a vibrating mirror, and meanwhile, the glass substrate can be fixed and supported by matching a positioning component and a fixing component, so that the flatness of the glass substrate is ensured.

2. In the utility model, the laser head and the laser light path are integrated to form the laser module, so that the stability of the laser light path is ensured, the processing quality and the scribing position are further ensured, the battery unit firstly passes through the fixed laser module, and the glass substrate moves, so that the processing efficiency can be ensured.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

In the figure: 10. a support platform; 110. an input end; 120. an output end; 130. a Y-direction guide rail; 20. a laser module; 30. a glass substrate; 410. a positioning assembly; 420. and fixing the assembly.

Detailed Description

The present utility model will be described in detail below with reference to the drawings and detailed embodiments, and before the technical solutions of the embodiments of the present utility model are described in detail, the terms and terms involved will be explained, and in the present specification, the components with the same names or the same reference numerals represent similar or identical structures, and are only limited for illustrative purposes.

Examples:

referring to fig. 1, a high-efficiency and stable laser scribing machine applied to a thin film solar cell comprises a supporting platform 10, wherein the supporting platform 10 comprises an input end 110 and an output end 120, further, the laser scribing machine further comprises a positioning tool capable of displacing along a Y direction of the supporting platform 10 and a laser module 20 arranged below the supporting platform 10, wherein the Y direction is along a length direction of the supporting platform 10, the X direction is perpendicular to the Y direction, namely along a width direction of the supporting platform 10, the laser module 20 is arranged at a position between the input end 110 and the output end 120, and a positioning mechanism is further arranged on the supporting platform 10, so that, in use, a glass substrate 30 is arranged on the positioning tool, a left position and a right position of the glass substrate are fixed by the positioning mechanism, and the laser module 20 is scribed from below and is scribed along the supporting platform 10 by the displacement of the positioning tool.

In order to realize the movement of the positioning tool along the Y direction, the support platform 10 is provided with the Y guide rails 130 distributed along the length direction thereof, and correspondingly, the positioning tool may be provided with a slider matched with the Y guide rails 130, and the positioning tool is disposed on the Y guide rails 130 through the slider.

Further, the laser module 20 includes laser components and parts and laser head, just laser module 20 passes through the locating pin setting on supporting platform 10, and laser module 20 is located input 110 and output 120 middle part, forms modularized structure with laser components and parts and laser head, guarantees that the light path is stable, and the light path does not take place the skew like this when long-time equipment operation, guarantees that laser is from down up-shooting in the course of working to realize down processing mode.

Further, positioning mechanism is including setting up at the location frock top and being located the locating component 410 and the fixed subassembly 420 of supporting platform side, specifically, the locating component includes the cylinder and sets up the push rod at the cylinder output, fixed subassembly is the clamping jaw, and during the use, utilizes the cylinder to promote the push rod and promotes glass substrate from left and right sides to accomplish the base plate and control the position location, accomplish the back both sides rethread clamping jaw completion centre gripping in order to guarantee the stability of glass substrate position in the course of working.

Further, the laser scribing machine further comprises a dust removing device, the dust removing device adopts an upper dust removing mode, and the dust removing device needs to cover the width of the whole glass substrate so as to ensure the dust removing effect.

When in use, the supporting platform 10 of the laser scribing machine consists of an input end 110 and an output end 120, the supporting platform 10 adopts a soft brush mode, the supporting effect is ensured, the moderate friction force in the moving process is ensured, and the glass substrate 30 is not scratched in the moving process. After the glass substrate 30 is conveyed into the equipment, the left side and the right side respectively push the glass substrate 30 through the positioning assemblies 410, the left and right position positioning of the glass substrate 30 is completed, the clamping of the two sides of the glass substrate 30 is completed through the fixing assemblies 420 after the positioning is completed, and the stability of the position of the glass substrate 30 in the processing process is ensured.

The glass substrate 30 is realized by matching a linear motor with the Y-direction guide rail 130 in the moving process.

After the mechanical positioning of the glass substrate 30 is completed, optical positioning is started, and the optical positioning is also realized by the Y-direction movement by adopting the fixed optical camera position.

The design requires the modularization of the laser head and the optical path components, is fixed on the supporting platform 10 through the locating pin, is positioned in the middle of the input end 110 and the output end 120, and the integrated laser module 20 ensures the stability of the optical path, so that the optical path is not deviated when long-time equipment operates. That is, the laser light is emitted from bottom to top in the processing process, thereby realizing the bottom processing mode. Meanwhile, the upper dust removing mode is adopted for dust removal, and the dust removing device needs to cover the whole width of the glass substrate 30 so as to ensure the dust removing effect.

In the process of processing the battery cell line (i.e., the Y-direction scribing), the fixed positions of the multiple laser beams (specific number is confirmed according to the productivity and the equipment arrangement design) are unchanged, the glass substrate 30 moves along the Y-direction to complete scribing, then the multiple laser beams move by corresponding distances according to the configuration design, the glass substrate 30 continues to move from the input end 110 to the output end 120 through the vibrating mirror to complete scribing of multiple lines, the multiple lasers move by corresponding distances respectively through the vibrating mirror, the glass substrate 30 then moves from the output end 120 to the input end 110, and then the scribing of multiple lines is completed, and the above steps are repeated until all the scribing of the battery cell line is completed.

The movement perpendicular to the Y-axis direction in the present utility model is defined as the X-direction.

In the process of scribing the insulating lines in the X direction, the glass substrate 30 is moved to the scribing position in the Y axis direction, and the laser head is moved by the X-direction scanning (realized by a galvanometer) to complete the X-direction scribing. The process is that multiple lasers work simultaneously, so that the X-direction line is spliced by the multiple lasers.

In order to ensure safe processing, the feeding and discharging door is always kept in a closed state in the processing process.

After the laser scribing process is completed, the clamping jaw and the positioning assembly are simultaneously loosened to complete unloading, and then the glass substrate 30 is conveyed out of the supporting platform 10 to complete the process.

The above-described embodiments are merely illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solution of the present utility model should fall within the scope of protection defined by the claims of the present utility model without departing from the spirit of the present utility model.

Claims (7)

1. The utility model provides a high-efficient stable laser scribing machine that is applied to thin film solar cell, includes supporting platform (10) that are provided with input (110) and output (120), its characterized in that still includes location frock that can follow supporting platform (10) Y to displacement and sets up laser module (20) below supporting platform (10) and be located between input (110) and output (120), still be equipped with positioning mechanism on supporting platform (10).

2. The laser scribing machine as recited in claim 1, characterized in that the support platform (10) is provided with Y-direction guide rails (130) distributed along a length direction thereof, and the positioning fixture is arranged on the Y-direction guide rails (130).

3. The laser scribing machine according to claim 1, characterized in that the laser module (20) comprises a laser component and a laser head, and the laser module (20) is arranged on the support platform (10) by means of a locating pin.

4. The laser scriber of claim 1, wherein the positioning mechanism includes a positioning assembly (410) and a fixing assembly (420) disposed on top of the positioning tooling and on a side of the support platform.

5. The laser scriber of claim 4, wherein the positioning assembly includes a cylinder and a pushrod disposed at an output end of the cylinder.

6. The laser scriber of claim 4, wherein the fixed assembly is a jaw.

7. The laser scriber of claim 1, further comprising a dust removal device.