Laser etching apparatus

Abstract

The utility model relates to laser processing technical field discloses a kind of laser etching equipment, including electric box, working tank and air intake unit;First area is formed in electric box;Working tank is connected with electric box, and working tank includes tank and laser etching structure, and laser etching structure is set in tank, and second area is formed in tank;Several air intake units are connected in electric box and working tank respectively, and are communicated with first area and second area respectively;The pressure in first area is P1, the pressure in second area is P2, the pressure of external environment is P3, satisfy P1>P2>P3.The pressure in the laser etching equipment of the utility model is higher than the pressure of external environment as a whole, so that external dust and other impurities cannot enter the inside of the equipment;The pressure of second area is lower than the pressure in first area, to prevent dust in working tank from entering electric box, to avoid electrical components in electric box from causing short circuit and other abnormalities;Dustproof is realized by pressure control, simple operation, high sustainability, good dustproof effect.

Description

Technical Field

[0001] This utility model relates to the field of laser processing technology, specifically to laser etching equipment. Background Technology

[0002] With the rapid development of the new energy industry, laser processing technology for battery cell electrodes has been widely used in lithium battery manufacturing due to its advantages such as high precision and high efficiency. Laser processing technology can realize various processing techniques such as cutting, welding, and etching of battery cell electrodes. By precisely controlling parameters such as laser energy density and pulse frequency, the processing quality and consistency of battery cell electrodes can be effectively guaranteed, meeting the production requirements of high energy density and high safety for lithium batteries.

[0003] In existing technologies, laser processing equipment often uses dust covers, dust plates and other structures for dust prevention. However, these structures need to be cleaned in a timely manner to ensure the dust prevention effect, and the dust prevention effect is not sustainable. Furthermore, it cannot prevent dust from escaping from the work box and accumulating in the electrical box, which may cause short circuits in electrical components due to dust. Utility Model Content

[0004] In view of this, the present invention provides a laser etching device to solve the problem that the dustproof effect of the prior art is poor and may cause short circuits in electrical components.

[0005] In a first aspect, this utility model provides a laser etching device, including an electrical box, a working box, and an air intake unit; a first region is formed inside the electrical box; the working box is connected to the electrical box, and the working box includes a box body and a laser etching structure, the laser etching structure being disposed inside the box body, and a second region is formed inside the box body; a plurality of air intake units are provided, the plurality of air intake units being respectively connected to the electrical box and the working box, and respectively communicating with the first region and the second region, the air intake units being able to adjust the pressure in the first region and the second region; the pressure in the first region is P1, the pressure in the second region is P2, and the pressure of the external environment is P3, satisfying P1 > P2 > P3.

[0006] Beneficial effects: The overall pressure inside the laser etching equipment is higher than the external environmental pressure, preventing external dust and other impurities from entering the equipment during normal operation; the pressure in the second zone is lower than that in the first zone, preventing dust from entering the electrical box and avoiding short circuits or other abnormalities caused by electrical components inside the electrical box; dust prevention is achieved through pressure control, which is simple to operate, highly continuous, and has a good dust prevention effect.

[0007] In one optional embodiment, the work box further includes a protective cover and a first dust extraction structure. The protective cover is disposed inside the work box, and a processing station and a dust extraction station are formed inside the protective cover. The laser etching structure is disposed at the processing station and inside the protective cover. The first dust extraction structure is disposed at the dust extraction station and inside the protective cover. The dust extraction port of the first dust extraction structure faces the laser etching structure. The first dust extraction structure is adapted to communicate with a negative pressure source.

[0008] Beneficial effects: By placing the first dust extraction structure and the laser etching structure inside the protective cover, a large amount of dust generated during processing is prevented from entering the area between the housing and the protective cover, thus ensuring the cleanliness of the internal environment of the equipment.

[0009] In one optional implementation, the second region includes a first partition, a second partition, and a third partition. The area between the housing and the protective cover forms the first partition, the processing station forms the second partition, and the dust extraction station forms the third partition. The pressure in the first partition is P21, the pressure in the second partition is P22, and the pressure in the third partition is P23, satisfying P21 > P22 > P23.

[0010] Beneficial effects: The pressure settings of the first, second, and third zones cause dust to move towards the dust extraction port of the first dust extraction structure, thereby absorbing the dust and ensuring the cleanliness of the internal environment of the equipment.

[0011] In one optional embodiment, the laser etching equipment further includes a second dust extraction structure connected to the working chamber, one end of the second dust extraction structure being connected to the first partition, and the other end of the second dust extraction structure being adapted to be connected to a negative pressure source.

[0012] Beneficial effects: By setting up a second dust extraction structure, the dust in the first zone can be further extracted and collected, improving the cleanliness of the equipment.

[0013] In one alternative embodiment, the laser etching apparatus further includes an electrostatic eliminator connected to the second dust extraction structure.

[0014] Beneficial effects: By installing an electrostatic eliminator on the second dust extraction structure, friction between dust particles and the inner wall of the second dust extraction structure, as well as between the particles themselves, is prevented, thus avoiding electrostatic discharge. Furthermore, it reduces the likelihood of dust particles adhering to the pipe wall due to electrostatic discharge, ensuring good unobstructed flow in the second dust extraction structure.

[0015] In one alternative embodiment, the laser etching equipment further includes a sealing structure disposed between the air intake unit and the electrical box, and / or, the sealing structure disposed between the air intake unit and the working box.

[0016] Beneficial effects: By setting up a sealed structure, external dust is prevented from entering the equipment through the gap between the air intake unit and the working box or electrical box.

[0017] In one alternative embodiment, the laser etching apparatus further includes a cooling fan connected to the electrical box.

[0018] Beneficial effects: The cooling fan dissipates the heat generated by the electrical components inside the electrical box in a timely manner, preventing overheating of the electrical box and the failure of some electrical components.

[0019] In one alternative embodiment, the laser etching apparatus further includes a filter structure connected to the cooling fan, and / or the filter structure is connected to the air intake unit.

[0020] Beneficial effects: The filter structure is installed in the cooling fan, which adsorbs dust while exhausting air; the filter structure is installed in the air intake unit to adsorb dust from the air drawn into the equipment from the external environment, ensuring the cleanliness of the equipment.

[0021] In one optional embodiment, the laser etching equipment further includes a central control unit and an ambient pressure sensor. A plurality of ambient pressure sensors are provided, and the plurality of ambient pressure sensors are respectively provided in the first region and the second region. The ambient pressure sensors are electrically connected to the central control unit, and the central control unit is electrically connected to the air intake unit.

[0022] Beneficial effects: By setting up an environmental pressure sensor, the pressure in each area can be monitored in real time, and the pressure information can be transmitted to the central control unit. The central control unit can then control the intake unit to replenish air and pressure.

[0023] In one optional embodiment, the laser etching equipment further includes a plurality of temperature sensors, which are respectively disposed in the first region and the second region. The temperature sensors are electrically connected to the central control unit, and the central control unit is electrically connected to the cooling fan.

[0024] Beneficial effects: By setting temperature sensors, the temperature in each area can be monitored in real time, and the temperature information can be transmitted to the central control unit, which can then control the cooling fan to exhaust heat. Attached Figure Description

[0025] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the axial structure of the laser etching equipment according to an embodiment of the present invention;

[0027] Figure 2 This is a side view of the laser etching equipment according to an embodiment of the present invention;

[0028] Figure 3 This is a schematic axial cross-sectional view of the laser etching equipment according to an embodiment of the present invention;

[0029] Figure 4 This is a cross-sectional view of the electrical box according to an embodiment of the present utility model;

[0030] Figure 5 This is a schematic diagram of the structure of the hidden protective cover in the work box according to an embodiment of the present utility model;

[0031] Figure 6 This is a cross-sectional view of the work box according to an embodiment of the present utility model;

[0032] Figure 7 for Figure 6 Enlarged view of point A;

[0033] Figure 8 This is a schematic diagram of the second dust extraction structure according to an embodiment of the present utility model;

[0034] Figure 9 This is a schematic diagram of the fluid dynamics simulation of the second dust extraction structure according to an embodiment of the present invention.

[0035] Explanation of reference numerals in the attached figures:

[0036] 10. Electrical box; 11. First area; 12. Box door; 13. Perforation; 20. Working box; 21. Box body; 211. Second area; 22. Laser etched structure; 23. Protective cover; 24. First dust extraction structure; 30. Air intake unit; 40. Second dust extraction structure; 41. Pipe body; 411. Dust extraction hole; 412. Opening; 413. First dust extraction channel; 414. Second dust extraction channel; 42. Flange; 50. Cooling fan; 60. Environmental pressure sensor; 70. Temperature sensor; 80. Dust concentration sensor; 90. Battery cell electrode; 100. Third dust extraction structure. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0038] The following is combined with Figures 1 to 9 The following describes embodiments of the present invention.

[0039] According to an embodiment of the present invention, a laser etching device is provided, including an electrical box 10, a working box 20, and an air intake unit 30; a first region 11 is formed inside the electrical box 10; the working box 20 is connected to the electrical box 10, and the working box 20 includes a box body 21 and a laser etching structure 22, the laser etching structure 22 is disposed inside the box body 21, and a second region 211 is formed inside the box body 21; a plurality of air intake units 30 are provided, and the plurality of air intake units 30 are respectively connected to the electrical box 10 and the working box 20, and respectively communicate with the first region 11 and the second region 211, and the air intake units 30 can adjust the pressure in the first region 11 and the second region 211; the pressure in the first region 11 is P1, the pressure in the second region 211 is P2, and the pressure of the external environment is P3, satisfying P1 > P2 > P3.

[0040] The laser etching equipment of this embodiment has a higher overall pressure inside the laser etching equipment than the external environment, preventing external dust and other impurities from entering the equipment during normal operation. The pressure in the second region 211 is lower than that in the first region 11, preventing dust from entering the electrical box 10 from the working chamber 20 and avoiding short circuits or other abnormalities caused by electrical components in the electrical box 10. Dust prevention is achieved through pressure control, which is simple to operate, highly continuous, and has a good dust prevention effect.

[0041] Specifically, such as Figure 1 As shown, the electrical box 10 is provided with a door 12 to facilitate the adjustment of the electrical components inside the electrical box 10.

[0042] It should be noted that, as Figure 4 and Figure 5 As shown in the figure, the curves with arrows indicate the direction of gas flow.

[0043] It should be noted that the electrical box 10 and the working box 20 are not in a completely sealed state. The air intake unit 30 continuously introduces clean air into the electrical box 10 and the working box 20 to maintain a slightly positive pressure state in the first region 11 and the second region 211.

[0044] It should be noted that in related technologies, laser processing equipment often uses dust covers, dust plates and other structures for dust prevention. However, such dust covers and other structures need to be cleaned in a timely manner to ensure the dust prevention effect, and the dust prevention effect is not sustainable.

[0045] In this embodiment, it is only necessary to maintain the first region 11 and the second region 211 in a slightly positive pressure state, and use the pressure difference to prevent external dust and other impurities from entering the equipment. There is no need to clean the structure, and the effect of the equation is strong.

[0046] Specifically, the first region 11 and the second region 211 are respectively connected to an air intake unit 30, which allows air to be introduced into the first region 11 and the second region 211 to maintain a slightly positive pressure state in the first region 11 and the second region 211.

[0047] In one embodiment, such as Figure 6 and Figure 7 As shown, the work box 20 also includes a protective cover 23 and a first dust extraction structure 24. The protective cover 23 is disposed inside the work box 20, and a processing station and a dust extraction station are formed inside the protective cover 23. The laser etching structure 22 is disposed at the processing station and inside the protective cover 23. The first dust extraction structure 24 is disposed at the dust extraction station and inside the protective cover 23. The dust extraction port of the first dust extraction structure 24 is disposed facing the laser etching structure 22. The first dust extraction structure 24 is adapted to be connected to a negative pressure source.

[0048] It is worth noting that by placing the first dust extraction structure 24 and the laser etching structure 22 inside the protective cover 23, a large amount of dust generated during processing is prevented from entering the area between the housing 21 and the protective cover 23, thus ensuring the cleanliness of the internal environment of the equipment.

[0049] Specifically, in this embodiment, the product processed by the laser etching equipment is a battery cell electrode sheet 90. When the laser etching structure 22 is working, its high-energy-density laser beam can cause harm to the operator, and the debris generated during operation may be scattered. Therefore, the protective cover 23 protects both the operator and the equipment body.

[0050] In one embodiment, the second region 211 includes a first partition, a second partition, and a third partition. The area between the housing 21 and the protective cover 23 forms the first partition, the processing station forms the second partition, and the dust collection station forms the third partition. The pressure in the first partition is P21, the pressure in the second partition is P22, and the pressure in the third partition is P23, satisfying P21 > P22 > P23.

[0051] Specifically, both the second and third partitions are located inside the protective cover 23.

[0052] It is worth noting that the pressure settings of the first subarea, the second subarea and the third subarea promote the movement of dust toward the dust suction port of the first dust suction structure 24, so that the dust is absorbed, ensuring the cleanliness of the internal environment of the equipment.

[0053] In one embodiment, as Figure 5 shows, the laser etching apparatus further includes a second dust extraction structure 40, the second dust extraction structure 40 is connected to the working box 20, one end of the second dust extraction structure 40 communicates with the first subarea, and the other end of the second dust extraction structure 40 is adapted to communicate with a negative pressure source.

[0054] It is worth noting that by providing the second dust extraction structure 40, further dust extraction and collection of dust in the first subarea is performed, improving the cleanliness inside the apparatus.

[0055] Specifically, please refer to Figure 8 , the second dust extraction structure 40 includes a pipe body 41 and a flange member 42, the flange member 42 is sleeved on the pipe body 41, a plurality of dust extraction holes 411 are provided along the axial direction of the pipe body 41, and a "cross-shaped" opening 412 is provided at one end of the pipe body 41.

[0056] Further, as Figure 2 , Figure 4 and Figure 5 shows, the end of the second dust extraction structure 40 provided with the opening 412 and the dust extraction holes 411 is disposed in the box body 21 of the working box 20, the other end of the second dust extraction structure 40 is disposed in the electric box 10, the negative pressure source pipeline (not shown) of the laser etching apparatus is disposed in the electric box 10, and passes through the through hole 13 on the side of the electric box 10 to exit.

[0057] It should be noted that please refer to Figure 9 , Figure 9 is a hydrodynamic simulation schematic diagram of the second dust extraction structure 40. In the cavity of the second dust extraction structure 40, units with relatively high wind force are offset toward the end where the dust extraction holes 411 are located, so that the first dust extraction flow channel 413 extending outward from the dust extraction holes 411 and the second dust extraction flow channel 414 extending outward from the "cross-shaped" opening 412 can extend further outward, thereby maximizing dust absorption, while the wind speed in the cavity of the second dust extraction structure 40 is relatively balanced; moreover, by providing the "cross-shaped" opening 412 at one end of the second dust extraction structure 40, it can be ensured to the maximum extent that during dust suction, the external environment provides the required air volume into the cavity of the second dust extraction structure 40, so as to achieve smooth air flow in the cavity of the second dust extraction structure 40 and maximize dust absorption.

[0058] In one embodiment, the laser etching apparatus further includes a static eliminator, and the static eliminator is connected to the second dust extraction structure 40.

[0059] It should be noted that during the dust extraction process, dust particles rub against the inner wall of the second dust extraction structure 40 and against each other, easily generating static electricity. If the static electricity is not eliminated in time, it will accumulate in the pipe. When the static electricity accumulates to a certain level, it may trigger electrostatic discharge. Furthermore, the static electricity will further attract dust particles to the pipe wall, causing a large accumulation of dust particles.

[0060] It is worth noting that by installing an electrostatic eliminator on the second dust extraction structure 40, friction between dust particles and the inner wall of the second dust extraction structure 40 and between them is prevented, thus avoiding electrostatic discharge. It can also reduce the situation where dust particles are attracted to the pipe wall due to electrostatics, thereby maintaining good unobstructed flow in the second dust extraction structure 40.

[0061] In one embodiment, the laser etching equipment further includes a sealing structure disposed between the air intake unit 30 and the electrical box 10, and between the air intake unit 30 and the working box 20.

[0062] Furthermore, a sealing structure is also provided at the joint between the electrical box 10 and the working box 20 to improve the sealing performance of the electrical box 10 and the working box 20.

[0063] Specifically, the sealing structure is a sealing strip.

[0064] Of course, other anti-static sealing materials such as sealing rubber can also be selected for the sealing structure.

[0065] It is worth noting that by setting a sealing structure, external dust is prevented from entering the equipment through the gap between the air intake unit 30 and the working box 20 or the electrical box 10.

[0066] In one embodiment, such as Figure 1 and Figure 4 As shown, the laser etching equipment also includes a cooling fan 50, which is connected to the electrical box 10.

[0067] For details, please refer to Figure 2 and Figure 6 There are eleven cooling fans 50, which are located on both sides of the electrical box 10.

[0068] Of course, in other alternative implementations, other numbers of cooling fans 50 may be provided according to actual heat dissipation requirements.

[0069] It should be noted that the electrical components inside the electrical box 10 will generate a lot of heat during operation. High temperatures will accelerate the aging of electrical components and affect their performance parameters. Furthermore, when the temperature is too high, dust is more likely to accumulate on the electrical components.

[0070] It is worth noting that the cooling fan 50 dissipates the heat generated by the electrical components inside the electrical box 10 in a timely manner, preventing the temperature inside the electrical box 10 from overheating and causing some electrical components to fail.

[0071] In one embodiment, the laser etching apparatus further includes a filter structure connected to the cooling fan 50 and the air intake unit 30.

[0072] Specifically, in this embodiment, the filter structure is filter cotton.

[0073] Of course, in other alternative implementations, the filtration structure can also be a filter membrane or the like.

[0074] It should be noted that the air intake unit 30 has an airflow direction from the outside to the inside. Dust from the external environment can easily enter the work box 20 and the chassis with the airflow direction. Therefore, the air entering the work box 20 and the chassis needs to be filtered. The cooling fan 50 has an airflow direction from the inside to the outside. Dust moves to the cooling fan 50 with the airflow direction and is absorbed by the filter cotton, thereby reducing the dust in the work box 20 and the chassis. The filter structure is easy to replace and easy to clean the cooling fan 50 and the air intake unit 30.

[0075] It is worth noting that the filter structure is located in the cooling fan 50, which adsorbs dust while exhausting air outwards; the filter structure is located in the air intake unit 30, which adsorbs dust from the air drawn into the equipment from the external environment, ensuring the cleanliness of the equipment.

[0076] In one embodiment, such as Figure 4 and Figure 5 As shown, the laser etching equipment also includes a central control unit and an ambient pressure sensor 60. Several ambient pressure sensors 60 are provided, and the several ambient pressure sensors 60 are respectively provided in the first region 11 and the second region 211. The ambient pressure sensors 60 are electrically connected to the central control unit, and the central control unit is electrically connected to the air intake unit 30.

[0077] Specifically, there are two environmental pressure sensors 60, which are respectively located in the first region 11 and the second region 211.

[0078] It should be noted that in order to maintain a slight positive pressure inside the electrical box 10 and the working box 20, the pressure inside the electrical box 10 and the working box 20 needs to be monitored at all times and the pressure replenished in a timely manner.

[0079] Specifically, the environmental pressure sensor 60 transmits the pressure information in the electrical box 10 and the working box 20 to the central control unit via electrical signals. If the pressure does not meet the requirements, the central control unit transmits an electrical signal to the air intake unit 30 to increase the air intake efficiency and replenish the air.

[0080] It is worth noting that by setting up an environmental pressure sensor 60, the pressure in each area can be monitored in real time, and the pressure information can be transmitted to the central control unit. The central control unit then controls the intake unit 30 to replenish air and pressure.

[0081] In one embodiment, such as Figure 4 and Figure 5 As shown, the laser etching equipment also includes a temperature sensor 70. Several temperature sensors 70 are provided, and the several temperature sensors 70 are respectively provided in the first region 11 and the second region 211. The temperature sensors 70 are electrically connected to the central control unit, and the central control unit is electrically connected to the cooling fan 50.

[0082] For details, please refer to Figure 4 Two temperature sensors 70 are installed in the first area 11 of the electrical box 10, and one temperature sensor 70 is installed in the second area 211 of the work box 20.

[0083] It is worth noting that by setting a temperature sensor 70, the temperature in each area can be monitored in real time, and the temperature information can be transmitted to the central control unit, which then controls the cooling fan 50 to exhaust and dissipate heat.

[0084] In one embodiment, such as Figure 4 and Figure 5 As shown, the laser etching equipment also includes a dust concentration sensor 80. Several dust concentration sensors 80 are provided, respectively located in the first region 11 and the second region 211. The dust concentration sensors 80 are electrically connected to the central control unit, and the central control unit is electrically connected to the negative pressure source. Figure 6 As shown, the laser etching equipment also includes a third dust extraction structure 100, which is located in the second region 211. The central control unit is electrically connected to the first dust extraction structure 24, the second dust extraction structure 40 and the third dust extraction structure 100.

[0085] Specifically, there are two dust concentration sensors 80, which are respectively located in the first region 11 and the second region 211.

[0086] Specifically, when the dust concentration exceeds the set value, the dust concentration sensor 80 transmits an electrical signal to the central control unit, which then controls the first dust extraction structure 24, the second dust extraction structure 40, the third dust extraction structure 100, and the negative pressure source to start collecting the dust.

[0087] It should be noted that during the dust extraction process, the air intake unit 30 needs to continuously intake air to ensure that the electrical box 10 and the working box 20 are in a slightly positive pressure state.

[0088] The laser etching equipment of this embodiment uses an air intake unit 30 to continuously supply clean air into the housing 21 of the electrical box 10 and the work box 20 to maintain a slight positive pressure in the first and second areas; an environmental pressure sensor 60 monitors the pressure inside the equipment in real time, and the central control unit realizes intelligent control of the air intake unit 30; a dust concentration sensor 80 monitors the dust concentration inside the equipment in real time, and the central control unit realizes intelligent control of the first dust extraction structure 24, the second dust extraction structure 40, the third dust extraction structure 100 and the negative pressure source; a temperature sensor 70 monitors the temperature inside the equipment in real time, and the central control unit realizes intelligent control of the cooling fan 50.

[0089] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the present invention.

Claims

1. A laser etching apparatus, characterized by, include: An electrical box (10) has a first region (11) formed inside it; The work box (20) is connected to the electrical box (10). The work box (20) includes a box body (21) and a laser etching structure (22). The laser etching structure (22) is disposed inside the box body (21). A second region (211) is formed inside the box body (21). An air intake unit (30) is provided, and several air intake units (30) are respectively connected to the electrical box (10) and the working box (20), and respectively communicate with the first area (11) and the second area (211). The air intake unit (30) can adjust the pressure in the first area (11) and the second area (211). The pressure in the first region (11) is P1, the pressure in the second region (211) is P2, and the pressure of the external environment is P3, satisfying P1 > P2 > P3.

2. The laser etching apparatus of claim 1, wherein, The work box (20) also includes a protective cover (23) and a first dust extraction structure (24). The protective cover (23) is disposed inside the work box (20). A processing station and a dust extraction station are formed inside the protective cover (23). The laser etching structure (22) is disposed at the processing station and inside the protective cover (23). The first dust extraction structure (24) is disposed at the dust extraction station and inside the protective cover (23). The dust extraction port of the first dust extraction structure (24) is oriented toward the laser etching structure (22). The first dust extraction structure (24) is adapted to communicate with a negative pressure source.

3. The laser etching apparatus of claim 2, wherein, The second region (211) includes a first partition, a second partition and a third partition. The area between the housing (21) and the protective cover (23) forms the first partition, the processing station forms the second partition, and the dust collection station forms the third partition. The pressure in the first partition is P21, the pressure in the second partition is P22, and the pressure in the third partition is P23, satisfying P21 > P22 > P23.

4. The laser etching apparatus of claim 3, wherein, The laser etching equipment further includes a second dust extraction structure (40), which is connected to the work box (20). One end of the second dust extraction structure (40) is connected to the first partition, and the other end of the second dust extraction structure (40) is adapted to be connected to a negative pressure source.

5. The laser etching equipment according to claim 4, characterized in that, The laser etching equipment also includes an electrostatic eliminator connected to the second dust extraction structure (40).

6. The laser etching apparatus according to any one of claims 1 to 5, characterized by, The laser etching equipment also includes a sealing structure disposed between the air intake unit (30) and the electrical box (10), and / or, the sealing structure disposed between the air intake unit (30) and the working box (20).

7. The laser etching apparatus according to any one of claims 1 to 5, characterized by, The laser etching equipment also includes a cooling fan (50) connected to the electrical box (10).

8. The laser etching apparatus of claim 7, wherein, The laser etching equipment also includes a filter structure connected to the cooling fan (50), and / or the filter structure connected to the air intake unit (30).

9. The laser etching equipment according to claim 7, characterized in that, The laser etching equipment also includes a central control unit and an environmental pressure sensor (60). Several environmental pressure sensors (60) are provided, and the several environmental pressure sensors (60) are respectively provided in the first region (11) and the second region (211). The environmental pressure sensor (60) is electrically connected to the central control unit, and the central control unit is electrically connected to the air intake unit (30).

10. The laser etching apparatus of claim 9, wherein, The laser etching equipment also includes a temperature sensor (70), and a plurality of temperature sensors (70) are provided. The plurality of temperature sensors (70) are respectively provided in the first region (11) and the second region (211). The temperature sensor (70) is electrically connected to the central control unit, and the central control unit is electrically connected to the cooling fan (50).

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