CN201693293U - Laser line dust removal equipment - Google Patents

Abstract

The utility model discloses a laser groove dust collecting equipment, including processing unit, dust extraction, first filter unit, high-pressure air exhauster and a plurality of electrostatic precipitator stick, the processing unit includes inner chamber and workstation, the workstation is arranged in the inner chamber, dust extraction has the dust absorption mouth and goes out the dirt mouth, the dust absorption mouth is located under the workstation, dust extraction's play dirt mouth with the upper end of first filter unit is linked together, the lower extreme of first filter unit with the suction opening of high-pressure air exhauster is linked together, be provided with first filter screen core between the upper end of first filter unit and the lower extreme, the air outlet of high-pressure air exhauster with the inner chamber is linked together, electrostatic precipitator stick align to grid set up in on the laser generator. The utility model discloses laser groove dust collecting equipment dust collection efficiency is high, the noise is low and the energy consumption is few.

Description

Laser engraving dust removal equipment

technical field

The utility model relates to a dedusting device, in particular to a laser scribe dedusting device for removing dust generated when a laser generator scribes an amorphous silicon solar glass substrate. the

Background technique

In the process of solar panel preparation, especially in the preparation process of amorphous silicon solar cell panels, each evaporation (or sputtering, or coating) film layer needs to be laser scribed with a laser generator. During the process of marking, a large amount of electrostatically charged or uncharged dust will be generated and adsorbed or deposited on the marking groove and plate. If the dust generated during the marking process is not cleaned after marking, the next evaporation (or sputtering, or The above-mentioned dust will be covered during the process of film coating), which will cause a short circuit on the circuit layout on the board; at the same time, the dust deposited on the glass surface will also affect the thickness and uniformity of the film in the next evaporation process, thereby reducing the thickness of the entire board. photoelectric conversion rate. the

At present, the methods used to collect the dust generated in the laser marking mainly include the method of sealing the environment by using a high-power exhaust fan and the method of dust removal by a full-coverage air collecting box. The high-power exhaust fan on both sides of or above the scored amorphous silicon solar panel draws out the airflow in the closed space, so that the dust is drawn out of the closed space by the exhaust fan with the airflow; the second is above the scored amorphous silicon solar panel Install a funnel-shaped or trapezoidal air-collecting box, and then set up an exhaust fan to communicate with the air-collecting box. The body of the above-mentioned air-collecting box completely covers the amorphous silicon solar panel, and the dust is sucked into the air-collecting box by the exhaust fan;

Although the above-mentioned first high-power exhaust fan closed environment drainage method can suck away the dust without static electricity, it cannot completely suck away the dust with static electricity adsorbed on the surface of the film and in the wire groove, and the dust removal efficiency is low. On the one hand, it is difficult to form a large enclosed space to generate sufficient air flow; on the other hand, it is necessary to introduce a high-power exhaust fan to realize the dust removal function, and a high-power exhaust fan will cause greater noise pollution and increase energy consumption. the

Using the above-mentioned second full-coverage air collection box dust removal method, since the wind direction inlet is set above the amorphous silicon solar panel, it is also necessary to introduce a high-power exhaust fan; The dust removal method of the full-coverage wind box can only absorb the dust in the line space, but cannot absorb the dust adsorbed on the surface of the film and the wire groove due to static electricity, resulting in incomplete dust removal , leading to low dust removal efficiency. the

Therefore, there is a need for a laser line dedusting device with high dedusting efficiency, low noise and low energy consumption. the

Utility model content

The purpose of the utility model is to provide a laser engraving dust removal device with high dust removal efficiency, low noise and low energy consumption. the

In order to achieve the above purpose, the utility model provides a laser engraving dedusting equipment, which is suitable for dedusting when a laser generator engraves an amorphous silicon solar glass substrate. The laser engraving dedusting equipment includes a processing unit, a dust suction device, The first filter unit, a high-pressure exhaust fan and several electrostatic dust removal rods, the processing unit includes an inner cavity and a workbench, the workbench and the laser generator are all placed in the inner cavity, and the amorphous silicon solar glass The substrate is carried on the lower surface of the workbench, the laser generator is placed above the workbench, the dust suction device has a dust suction port and a dust outlet, and the dust suction port is located on the workbench directly below, the dust outlet of the dust suction device communicates with the upper end of the first filter unit, the lower end of the first filter unit communicates with the exhaust port of the high-pressure exhaust fan, and the first filter A first filter core is arranged between the upper end and the lower end of the unit, the air outlet of the high-pressure exhaust fan communicates with the inner cavity, and the electrostatic dust removal rods are evenly arranged on the laser generator. the

Preferably, the laser engraving dust removal equipment further includes an air supply device, the air supply device communicates with the upper end of the first filter unit, and the air supply device injects air from the outside into the first filter unit the upper end. The air supply device can supply fresh air to the first filter unit, which can reduce the load of the high-pressure exhaust fan and improve the life of the high-pressure exhaust fan. the

Preferably, the laser marking line dedusting equipment also includes a constant temperature and humidity unit providing a constant temperature and constant humidity environment, one end of the constant temperature and humidity unit communicates with the air outlet of the high-pressure exhaust fan, and the constant temperature and humidity The other end of the unit communicates with the inner cavity and forms a blower port. Since the laser generator has been marking the amorphous silicon solar glass substrate for a long time, the inner cavity has a relatively high temperature and is very dry. Constant temperature and humidity treatment, so that the inner cavity can maintain a specific temperature and humidity, which can effectively suppress the deformation of the amorphous silicon solar glass substrate due to high temperature, and at the same time improve the processing efficiency of the amorphous silicon solar glass by the laser generator. Substrate accuracy. Specifically, the laser engraving dust removal equipment also includes a second filter unit, the second filter unit has a second filter core accommodated in the inner cavity, and the second filter core covers the Above the laser generator and between the laser generator and the blower. The second filter unit filters the air again to ensure the cleanliness of the air blown into the inner cavity, and also to ensure the accuracy of the laser generator in processing the amorphous silicon solar glass substrate. the

Preferably, the area of the suction port of the dust suction device is greater than or equal to the area of the amorphous silicon solar glass substrate, which is conducive to more clean and thorough dust suction. Specifically, the dust outlet of the dust suction device communicates with the upper end of the first filter unit through a dust suction pipe; the dust suction pipe is a bellows, which can be bent conveniently and can be kept smooth passage. the

Compared with the prior art, since the utility model uses the electrostatic dust removal rod to destaticize the charged dust in the inner cavity, the dust will automatically fall due to its own weight, and the suction of the dust collection device The dust outlet is placed directly below the glass substrate, and the high-pressure and high-pressure exhaust fan is used to generate a high-speed airflow of negative pressure in the dust collection device to suck away the dust, and the inhaled air is filtered by the first filter unit. The whole process forms a loop, which can provide a high-speed airflow for the laser generator and the amorphous silicon solar glass substrate, so that the dust can be separated from the laser generator and the amorphous silicon solar glass substrate. The crystalline silicon solar glass substrate is convenient for the dust collection device to absorb dust, and can also cool and dissipate the inner cavity. It can cleanly remove the dust in the inner cavity without using a high-power high-pressure exhaust fan, and the dust removal efficiency is high and reduced. The energy consumption of the equipment is reduced, and the noise is reduced. the

Description of drawings

Fig. 1 is a structural schematic diagram of the laser engraved line dedusting equipment of the present invention. the

Detailed ways

As shown in Figure 1, the laser engraving dust removal equipment 100 of the present utility model includes a processing unit 1, a dust suction device 2, a first filter unit 3, a high-pressure exhaust fan 4, an air supply device 5, a constant temperature and humidity unit 6, a second Filter unit 7 and several electrostatic precipitating rods 8 . the

The processing unit 1 includes an inner cavity 11 and a workbench 12, the workbench 12 and the laser generator 200 are placed in the inner cavity 11, and the amorphous silicon solar glass substrate 300 is carried on the workbench 12 The laser generator 200 is placed on the lower surface of the workbench 12 . the

The dust suction device 2 has a dust suction port 21, a dust discharge port 22 and a dust suction pipe 23. The dust suction port 21 is facing the bottom of the workbench 12 and completely covers the amorphous silicon solar glass substrate 300. , the area of the dust suction port 21 is larger than the area of the amorphous silicon solar glass substrate 300, which is conducive to more clean and thorough dust suction. The dust outlet 22 of the dust suction device 2 communicates with the upper end of the first filter unit 3 through a dust suction pipe 23. The dust suction pipe 23 is a bellows, and the bellows can be easily bent and bent. To keep the channel smooth. the

The lower end of the first filter unit 3 communicates with the air outlet of the high-pressure exhaust fan 4, and a first filter core 31 is arranged between the upper end and the lower end of the first filter unit 3. The core 31 filters the passing air to obtain clean gas. the

The air supply device 5 is installed on the first filter unit 3 and communicated with the upper end of the first filter unit 3, and the air supply device 5 can inject air into the upper end of the first filter unit 3, so that The load of the high-pressure exhaust fan 4 can be reduced, and the service life of the high-pressure exhaust fan 4 is improved. the

The high-pressure exhaust fan 4 communicates with the constant temperature and humidity unit 6 through a pressurization pipe 41, and the high-pressure exhaust fan 4 can pressurize the clean gas by using the pressurization pipe 41 and send it to the constant temperature Inside the constant humidity unit 6. the

One end of the constant temperature and humidity unit 6 communicates with the pressurizing pipe 41 of the high-pressure exhaust fan 4 , and the other end of the constant temperature and humidity unit 6 communicates with the inner cavity 11 to form a blowing port 11a. Since the laser generator 200 has scored the amorphous silicon solar glass substrate 300 for a long time, the inner cavity 11 has a relatively high temperature and is very dry, and the constant temperature and humidity unit 6 is transported to the The gas in the inner cavity 11 is subjected to constant temperature and humidity treatment, so that the inner cavity 11 can maintain a specific temperature and humidity, which can effectively suppress the deformation of the amorphous silicon solar glass substrate 300 due to high temperature, and at the same time improve the The accuracy with which the laser generator 200 processes the amorphous silicon solar glass substrate 300 . the

The second filter unit 7 has a second filter core 71 housed in the inner cavity, and the second filter core 71 covers the laser generator 200 and is located between the laser generator 200 and the blower. Between mouth 11a. The filtration level of the second filter unit 7 is higher than that of the first filter unit 3, and the second filter unit 7 filters the air again to ensure the cleanliness of the air blown into the inner cavity 11, and also to ensure that all The accuracy of processing the amorphous silicon solar glass substrate 300 by the laser generator 200 is discussed. the

The electrostatic dust removal rods 8 are evenly arranged on the laser generator 200, and the dust particles adsorbed on the surface of the amorphous silicon solar glass substrate 300 with static electricity will be neutralized by the electrostatic dust removal rods 8 The dust suction device 2 sucks. the

Based on the above and in conjunction with Fig. 1, the working principle of the laser engraving dust removal equipment 200 of the present invention is described in detail below, as follows:

When working, the motor starts, the high-pressure exhaust fan 4 rotates, and the dust suction device 2 sucks the air in the inner cavity 11 away. The laser generator 200 generates laser light and moves along a fixed track to form scribe lines on the surface of the film layer 301 on the amorphous silicon solar glass substrate 300, and dust is generated during the scribe process, and some of the dust has static electricity and the other part does not. Charged, the dust collection device 2 sucks away the non-static dust dispersed near the dust suction port 21, and the dust with static electricity is adsorbed on the wire slot of the amorphous silicon solar glass substrate 300 and the film layer 301 middle. At this time, the electrostatic dust removal rod 8 attracts and neutralizes the charged dust, and the neutralized dust side falls off freely from the electrostatic dust removal rod 8 and is sucked away by the dust suction device 2, and the dust passes through the dust collector with the air. The first filter unit 3. At the same time, the air supply device 5 supplements fresh air from the outside and filters the air with dust together, and produces clean gas after filtering, and the gas passes through the high-pressure exhaust fan 4, and the high-pressure exhaust fan 4 pressurizes the gas And the constant temperature and humidity unit 6 transports the gas back to the inner cavity 11 after being processed, and the gas forms a top-down airflow in the inner cavity 11, and the airflow passes through the second filter core of the second filter unit 7 71 is filtered again and blows to the laser generator 200 and the processing unit 1, and the dust generated by processing is blown down to the vicinity of the dust suction port 21, which is convenient for the dust suction device 2 to suck dust. the

Since the utility model utilizes the electrostatic dust removal rod 8 to destaticize the charged dust in the inner cavity 11, the dust will automatically fall due to its own weight, and the dust suction port 21 of the dust suction device 2 is placed Directly below the amorphous silicon solar glass substrate 300, the high-pressure exhaust fan 4 is used to generate a negative-pressure high-speed airflow in the dust collection device 2 to suck away the dust, and after being filtered by the first filter unit 3, the The inhaled air is pressurized and sent back to the inner cavity 11, and the whole process forms a loop, which can provide a high-speed airflow for the laser generator 200 and the amorphous silicon solar glass substrate 300, so that the dust is separated from the The laser generator 200 and the amorphous silicon solar glass substrate 300 are convenient for the dust collection device 2 to collect dust, and can also cool down and dissipate heat from the inner cavity 11. The dust in the cavity 11 has high dust removal efficiency, reduces the energy consumption of the equipment, and reduces the noise. the

The size, installation method and working principle of the constant temperature and humidity unit 6 involved in the laser engraving dust removal equipment 100 of the present utility model are all well known to those of ordinary skill in the art, and will not be described in detail here. . the

What is disclosed above is only a preferred example of the utility model, and of course the scope of rights of the utility model cannot be limited with this. Therefore, equivalent changes made according to the patent scope of the utility model still belong to the scope covered by the utility model . the

Claims (7)

1. laser recticle dedusting plant, carry out dedusting when being applicable to laser generator to non-crystal silicon solar energy glass substrate groove, it is characterized in that: described laser recticle dedusting plant comprises machining cell, dust exhaust apparatus, first filter element, high pressure air exhauster and several electrostatic precipitation rods, described machining cell comprises inner chamber and workbench, described workbench and laser generator all place in the described inner chamber, described non-crystal silicon solar energy glass substrate bearing is on the lower surface of described workbench, described laser generator places the top of described workbench, described dust exhaust apparatus has suction port and dust mouth, described suction port be positioned at described workbench under, the dust mouth of described dust exhaust apparatus is connected with the upper end of described first filter element, the lower end of described first filter element is connected with the suction opeing of described high pressure air exhauster, be provided with first between the top and bottom of described first filter element and filter web-roll core, the air outlet of described high pressure air exhauster and described intracavity inter-connection, evenly distributed being arranged on the described laser generator of described electrostatic precipitation rod.

2. laser recticle dedusting plant as claimed in claim 1, it is characterized in that: described laser recticle dedusting plant also comprises making-up air device, described making-up air device is communicated with the upper end of described first filter element, and described making-up air device injects air and flows into the upper end of described first filter element from the external world.

3. laser recticle dedusting plant as claimed in claim 1, it is characterized in that: described laser recticle dedusting plant also comprises the constant temperature and humidity unit that steady temperature and constant humidity environment are provided, one end of described constant temperature and humidity unit is communicated with the air outlet of described high pressure air exhauster, and the other end of described constant temperature and humidity unit is communicated with described inner chamber and forms blowing mouth.

4. laser recticle dedusting plant as claimed in claim 3, it is characterized in that: described laser recticle dedusting plant also comprises second filter element, described second filter element has and is placed in second in the described inner chamber and filters web-roll core, and described second filters that web-roll core is covered in the top of described laser generator and between laser generator and blowing mouth.

5. laser recticle dedusting plant as claimed in claim 1 is characterized in that: the suction port area of described dust exhaust apparatus is more than or equal to the area of described non-crystal silicon solar energy glass substrate.

6. laser recticle dedusting plant as claimed in claim 5 is characterized in that: the dust mouth of described dust exhaust apparatus is communicated with by sweep-up pipe with the upper end of described first filter element.

7. laser recticle dedusting plant as claimed in claim 6 is characterized in that: described sweep-up pipe is a bellows.

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