Laser scribing dust collector and operation method thereof

Abstract

The invention discloses a laser marking dust remover, which is suitable for removing dust when a laser generator marks an amorphous silicon solar panel. The laser marking dust remover comprises a dust suction device and a ventilator, wherein the dust suction device is communicated with the ventilator; the ventilator comprises an exhaust chamber and an electrostatic removal rod which is connected to the outside of the exhaust chamber; the exhaust chamber is provided with an exhaust chamber air inlet and an exhaust chamber air outlet which is communicated with the dust suction device; and the exhaust chamber air inlet is directly over a marking track of the amorphous silicon solar panel by means of covering. The laser marking dust remover sucks dust pertinently by utilization of the exhaust chamber set, can widen the dust removal range and improve the pertinency to the utmost degree by matching the exhaust chamber set and the electrostatic removal rod, has a simple structure and low cost, can obtain ideal dust removal effect by utilization of an exhaust fan with small power, does not need a closed environment, and can have the function of temperature reduction when mixing the dust into drainage gas. Moreover, the invention also discloses a method for operating the laser marking dust remover.

Description

technical field [0001] The invention relates to a dedusting device for cleaning and collecting dust, in particular to a laser dedusting device for dedusting when a laser generator is used to dedust an amorphous silicon solar panel. Background technique [0002] In the process of preparing solar panels, especially in the process of preparing amorphous silicon solar panels, every evaporation (or sputtering, or coating) needs to be laser scribed with a laser generator. The dust generated during the scribing process, the dust will be deposited on the scribing groove and the board, and the above-mentioned dust will be covered in the next evaporation (or sputtering, or coating) process, which will cause the layout of the board to occur. Short circuit; at the same time, the dust deposited on the glass surface will also affect the film thickness and uniformity in the next evaporation process, thereby reducing the photoelectric conversion rate of the entire board. [0003] At presen...

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Problems solved by technology

[0004] Using the above-mentioned first high-power exhaust fan closed environment drainage method to collect and process the dust generated during the marking process has certain effects on the surface film of small-area amorphous silicon solar panels and low-speed marking lines, but for such as amorphous silicon When the thin-film solar panel film substrate is a large-area glass score line of 1100 mm × 1400 mm, the dust cannot be completely absorbed, resulting in low dust removal efficiency. On the one hand, it is difficult to form a large closed space to generate sufficient airflow; on the other hand On the one hand, a high-power exhaust fan must be introduced to realize the function of dust removal, and a high-power exhaust fan will cause greater noise pollution and increase energy consumption. At the same time, it is not easy to dissipate heat in a closed space, and the long-term high-temperature environment will accelerate wiring. aging and shorten the life of the motor, resulting in increased costs and potential safety hazards

[0005] Using the above-mentioned second full-coverage air collection box dust removal method, due to the large wind direction inlet area, the air flow in the entire area is uneven, resulting in local dust removal, and it is also necessary to introduce a high-power exhaust fan; and, whether it is using a high-power exhaust fan The dust removal method of the closed environment drainage method or the dust removal method of the full-coverage air collecting box can only absorb the dust in the space of the marking line, but cannot absorb the dust adsorbed on the surface of the film and the wire groove due to static electricity. Suction, resulting in incomplete dust removal, resulting in low dust removal efficiency

[0006] Although dust can be effectively absorbed by the above third electrostatic precipitator method, the performance of the electrostatic precipitator method is affected by three factors such as dust properties, equipment structure and dust flow rate.

Compared with other dust removal methods, the electrostatic dust removal method consumes less energy and has higher dust removal efficiency. However, if this method is used for dust removal treatment, the equipment investment cost will be greatly increased, and the equipment needs to be adjusted according to the nature of the generated dust. Adaptive improvement, complex structure and difficult operation

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