Photovoltaic module laser scribing equipment and dust removal device thereof

Abstract

The utility model discloses photovoltaic module laser scribing equipment and a dust removal device thereof, the photovoltaic module laser scribing equipment comprises a laser, a galvanometer module and a processing substrate, the laser is arranged on a first side of the galvanometer module, and the processing substrate is arranged on a second side, opposite to the first side, of the galvanometer module; the dust removal device comprises a dust removal cover, wherein the first side of the dust removal cover is connected with the second side of the galvanometer module; the first side of the dust collection cover is connected with the second side, opposite to the first side, of the dust removal cover; the dust collecting opening is formed in the second side, opposite to the first side, of the dust collecting cover; and the dust collecting pipeline is connected with the dust collecting opening. According to the laser scribing device, a laser light path can be physically isolated from dust in air, fluctuation of laser power caused by the dust is avoided, and stability and accuracy of laser scribing are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of improvement of laser scribing equipment, in particular to a laser scribing equipment for photovoltaic modules and its dust removal device. Background Technique

[0002] The laser scribing technology for photovoltaic modules is to use a high-energy laser beam to precisely scribe on the surface of photovoltaic modules to achieve efficient and precise processing. The working principle of this technology is mainly based on the optical principle and the working principle of the laser. Through the high-energy laser beam emitted by the laser, after being focused and reflected by the optical system, it is precisely irradiated on the surface of the photovoltaic module. With the help of the computer control system, the path and shape of the laser beam can be precisely controlled, so as to achieve precise scribing on the surface of the photovoltaic module. During this process, the energy of the laser beam is absorbed by the photovoltaic module material, causing the material to locally melt, vaporize or reach the ignition point, so as to achieve the purpose of scribing.

[0003] However, although the laser scribing technology for photovoltaic modules has significant advantages, some problems in the prior art still cannot be ignored. Especially the performance and accuracy of the scribing equipment, which directly affect the product quality and production efficiency. The current scribing equipment on the market, especially the scribing equipment for perovskite batteries, has significant defects and deficiencies.

[0004] Among them, the problem of the dust collection system is one of the main difficulties. The existing scribing equipment is usually equipped with a dust collection system, and these systems generally include independent blowing and fan systems. However, due to the compact structure of the laser equipment itself, the internal space of the dust collection system is limited, which makes it difficult to further optimize the dust collection system, resulting in an unsatisfactory effect of keeping the processing area clean. Especially in the edge cleaning stage of perovskite batteries, the galvanometer in the optical system will cause the laser beam to move repeatedly in a large area, and baffles cannot be installed in this area to optimize the dust collection effect, and at the same time, the laser beam will also be blocked by floating dust particles in the air.

[0005] In addition, due to the limitation of the performance of the dust collection system, the cleanliness of the film surface after laser processing cannot be guaranteed. The measured data shows that the wind speed generated by the dust suction equipment is 35m / s, but the suction received on the surface of the processed material is only 15m / s, which indicates that nearly 20m / s of suction is lost during the wind transmission process, greatly reducing the efficiency of the dust collection system. And the adhesion of dust and particles will not only affect the appearance quality of the product, but may also have a negative impact on the performance of the photovoltaic module.

[0006] In order to solve the above problems, the utility model proposes a laser scribing equipment for photovoltaic modules and its dust removal device. Content of the Utility Model

[0007] The purpose of the present utility model is to provide a laser scribing device for photovoltaic modules and its dust removal device, which is used to physically isolate the laser optical path from dust in the air, avoid fluctuations in laser power caused by dust, and ensure the stability and accuracy of laser scribing.

[0008] The purpose of the present utility model is achieved by the following technical solutions:

[0009] On the one hand, the present utility model provides a dust removal device for a laser scribing device of a photovoltaic module. The laser scribing device of the photovoltaic module includes: a laser, a galvanometer module, and a processing substrate. The laser is arranged on the first side of the galvanometer module, and the processing substrate is arranged on the second side of the galvanometer module opposite to the first side;

[0010] The dust removal device includes:

[0011] A dust removal cover, the first side of the dust removal cover is connected to the second side of the galvanometer module;

[0012] A dust collection cover, the first side of the dust collection cover is connected to the second side of the dust removal cover opposite to the first side;

[0013] A dust collection port, the dust collection port is opened on the second side of the dust collection cover opposite to the first side;

[0014] A dust collection pipe, the dust collection pipe is connected to the dust collection port.

[0015] Further, a first groove is opened on the second side of the dust removal cover;

[0016] A second groove is opened on the first side of the dust collection cover;

[0017] The dust removal device further includes:

[0018] A first sealing ring, one side of the first sealing ring is embedded in the first groove, and the other side of the first sealing ring is embedded in the second groove.

[0019] Further, a third groove is opened on the second side of the galvanometer module;

[0020] A fourth groove is opened on the first side of the dust removal cover;

[0021] The dust removal device further includes:

[0022] A second sealing ring, one side of the second sealing ring is embedded in the third groove, and the other side of the second sealing ring is embedded in the fourth groove.

[0023] Further, the dust removal device further includes:

[0024] The first fastener, which connects the second side of the dust removal cover and the first side of the dust collection cover.

[0025] Furthermore, the dust removal device further includes:

[0026] The second fastener, which connects the second side of the galvanometer module and the first side of the dust removal cover.

[0027] Furthermore, the dust removal device further includes:

[0028] The light outlet, which is opened on the second side of the dust collection cover opposite to the first side and is disposed opposite to the processing substrate.

[0029] Furthermore, the size of the dust collection port is: 20 - 50 cm 2 。

[0030] Furthermore, the dust removal cover is a visible glass cover with the functions of laser prevention and radiation prevention.

[0031] Furthermore, the dust removal cover is a sheet metal part with the functions of laser prevention and radiation prevention.

[0032] In a second aspect, the present utility model provides a laser scribing device for photovoltaic modules, including the above-mentioned dust removal device.

[0033] Compared with the prior art, the beneficial effects of the present utility model at least include:

[0034] By providing the dust removal cover and the dust collection cover, the present utility model realizes physical isolation of the laser light path and dust in the air, effectively prevents dust in the air from entering the light path, thereby avoiding fluctuations in the laser power caused by dust, ensuring the stability and accuracy of laser scribing, and further improving the product yield. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 is a schematic structural diagram of the dust removal device in an embodiment of the present utility model.

[0036] Figure 2 is another schematic structural diagram of the dust removal device in an embodiment of the present utility model.

[0037] Figure 3 is another schematic structural diagram of the dust removal device in an embodiment of the present utility model.

[0038] Figure 4 is another schematic structural diagram of the dust removal device in an embodiment of the present utility model.

[0039] In the figure: 1, dust removal cover; 2, dust collection cover; 3, dust collection port; 4, dust collection pipeline; 5, first sealing ring; 6, light outlet; 8, galvanometer module; 9, processing substrate; 81, first reflector; 82, second reflector; 10, fixing member. Detailed implementation mode

[0040] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in various forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this utility model will be more complete and comprehensive, and will fully convey the concept of the example embodiments to those skilled in the art. Like reference numerals in the figures denote the same or similar structures, and thus their repeated description will be omitted.

[0041] The words expressing position and direction described in this utility model are all illustrated by taking the accompanying drawings as examples, but can be changed according to needs, and all changes made are included in the protection scope of this utility model.

[0042] The laser scribing system for photovoltaic modules generally consists of parts such as a laser, an optical system, a control system, and a processing substrate 9. Among them, the optical system includes optical elements such as lenses and galvanometer modules 8. Further, the laser is arranged on the first side of the galvanometer module 8, and the processing substrate 9 is arranged on the second side of the galvanometer module 8 opposite to the first side. During application, the laser is a key component for generating high-energy laser beams, and its performance directly affects the scribing effect. The optical system is used to focus and reflect the laser beam to ensure that the laser beam can accurately irradiate the surface of the photovoltaic module. The control system controls the path and shape of the laser beam through a computer to achieve precise control of the scribing process. The processing substrate 9 is used to fix the photovoltaic module to ensure the stability of the photovoltaic module during the scribing process.

[0043] In order to improve the cleanliness and dust collection efficiency during the laser scribing process, this utility model introduces a laser scribing device for photovoltaic modules and its dust removal device.

[0044] The dust removal device of this utility model includes: a dust removal cover 1, a dust collection cover 2, a dust collection port 3, and a dust collection pipeline 4. Further, the dust removal device may also include: a light outlet 6. Further, the dust removal device may also include: a first sealing ring 5 and a second sealing ring. Furthermore, the dust removal device may also include: a first fastener and a second fastener.

[0045] Refer to Figure 2 , the galvanometer module 8 is installed above the processing substrate 9 through a fixing member 10. Further, the galvanometer module 8 includes a first reflector 81 and a second reflector 82, and can repeatedly move the laser beam passing through the lens between the first reflector 81 and the second reflector 82. Refer to Figure 1, the first side of the dust hood 1 made of a visible glass cover or sheet metal part with anti-laser and anti-radiation functions is connected to the second side of the galvanometer module 8, and the first side of the dust collection hood 2 made of a visible glass cover or sheet metal part with anti-laser and anti-radiation functions is connected to the second side of the dust hood 1 opposite to the first side. During application, the laser generated by the laser passes through the lens, the galvanometer module 8, the dust hood 1, and the dust collection hood 2 in sequence, and then acts on the photovoltaic module fixed on the processing substrate 9.

[0046] By setting the dust hood 1 and the dust collection hood 2, the present utility model realizes physical isolation of the laser optical path and dust in the air, effectively prevents dust in the air from entering the optical path, thereby avoiding fluctuations in laser power caused by dust, ensuring the stability and accuracy of laser scribing, and further improving the product yield.

[0047] Reference Figure 3 , in order to improve the sealing performance of the connection between the dust hood 1 and the dust collection hood 2, a first groove is opened on the second side of the dust hood 1, a second groove is opened on the first side of the dust collection hood 2, one side of the first sealing ring 5 is embedded in the first groove, and the other side of the first sealing ring 5 is embedded in the second groove. Further, in order to improve the firmness of the connection between the dust hood 1 and the dust collection hood 2, the second side of the dust hood 1 and the first side of the dust collection hood 2 are connected by a first fastener.

[0048] In order to improve the sealing performance of the connection between the dust hood 1 and the galvanometer module 8, a third groove is opened on the second side of the galvanometer module 8, a fourth groove is opened on the first side of the dust hood 1, one side of the second sealing ring is embedded in the third groove, and the other side of the second sealing ring is embedded in the fourth groove. Further, in order to improve the firmness of the connection between the dust hood 1 and the galvanometer module 8, the second side of the galvanometer module 8 and the first side of the dust hood 1 are connected by a second fastener.

[0049] By providing a first groove, a second groove, and a first sealing ring 5 between the dust hood 1 and the dust collection hood 2, and by providing a third groove, a fourth groove, and a second sealing ring between the galvanometer module 8 and the dust hood 1, the present utility model effectively improves the sealing performance of the connections among the three, which can not only effectively prevent dust from invading the laser scribing equipment, improve the stability and accuracy of laser scribing and protect the equipment from damage; but also prevent the air flow inside the dust collection hood 2 from leaking, enhancing the dust collection effect.

[0050] Further, by using a first fastener to connect the dust hood 1 and the dust collection hood 2, and using a second fastener to connect the galvanometer module 8 and the dust hood 1, the present utility model greatly enhances the structural firmness among the three, can effectively resist the vibration and impact generated during the operation of the device, enables the device to maintain stable performance in a high-intensity working environment, reduces the possibility of faults, and thus extends the service life of the equipment.

[0051] Reference Figure 4 , a dust collection port 3 and a light outlet 6 are provided on the second side of the dust collection hood 2 opposite to the first side. Among them, the light outlet 6 is arranged opposite to the processing substrate 9, the dust collection port 3 is connected to a dust collection pipeline 4, and the dust collection pipeline 4 is connected to an external dust collection device.

[0052] Aiming at the problems of the large area of the existing dust collection port 3 and the dispersed suction force, the utility model compresses the unused space around the dust collection port 3 to reduce the area of air flow diffusion. For example: the size of the dust collection port 3 is set to 0 - 50 cm 2 . Further, the size of the dust collection port 3 can also be set to 20 - 50 cm 2 . Preferably, the size of the dust collection port 3 is set to 20 cm 2 . Specifically, the original 50 cm 2 area of the dust collection port 3 is reduced to 20 cm 2 , significantly improving the suction force per unit area and maximizing the dust collection effect.

[0053] In summary, the dust removal device of the utility model can significantly improve the cleanliness and dust collection efficiency during the laser scribing process, thereby ensuring product quality, improving production efficiency, and reducing the later maintenance cost.

[0054] In some preferred embodiments, a laser scribing device for photovoltaic modules is also introduced. The dust removal device of the laser scribing device for photovoltaic modules.

[0055] The laser scribing device for photovoltaic modules of the utility model makes the air flow more concentrated by reducing the area of the dust collection port 3 and optimizing the design of the dust collection hood 1, so as to ensure that the material debris generated during the laser processing process can be efficiently sucked away by the dust collection system. This not only reduces the cleaning work on site after processing, but also reduces the possible risks caused by the debris to the equipment and operators. In addition, due to the large optical path range under the galvanometer, the floating dust particles in the air are easy to float onto the laser beam, affecting the scribing quality. The dust-proof cover and the dust collection hood 2 can completely seal the open channel between the galvanometer module 8 and the light outlet 6, effectively protecting the stable light source output of the optical path system and ensuring that the laser beam is not interfered by dust during the processing. Further, by reducing the interference of dust and debris, the accuracy and quality of laser scribing can be significantly improved. At the same time, it also avoids the problems of poor film surface quality after processing and short circuit of sub-cells caused by electrode residue buckles during the scribing stage, thereby improving the production yield of perovskite batteries. It can be seen that the laser scribing device for photovoltaic modules of the utility model also has good compatibility with the spatial optical path system and can be widely applied to different types of laser processing scenarios.

[0056] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Without departing from the principle and purpose of the present utility model, those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the utility model, and all such changes should fall within the protection scope of the claims of the present utility model.

Claims

1. A dust removal device for a laser scribing device of a photovoltaic module, characterized in that, The laser scribing device for the photovoltaic module includes: a laser, a galvanometer module (8), and a processing substrate (9). The laser is disposed on a first side of the galvanometer module (8), and the processing substrate (9) is disposed on a second side of the galvanometer module (8) opposite to the first side; The dust removal device includes: A dust removal cover (1), a first side of the dust removal cover (1) is connected to a second side of the galvanometer module (8); A dust collection cover (2), a first side of the dust collection cover (2) is connected to a second side of the dust removal cover (1) opposite to the first side; A dust collection port (3), the dust collection port (3) is opened on a second side of the dust collection cover (2) opposite to the first side; A dust collection pipe (4), the dust collection pipe (4) is connected to the dust collection port (3).

2. The dust removal device according to claim 1, characterized in that, A first groove is opened on a second side of the dust removal cover (1); A second groove is opened on a first side of the dust collection cover (2); The dust removal device further includes: A first sealing ring (5), one side of the first sealing ring (5) is embedded in the first groove, and the other side of the first sealing ring (5) is embedded in the second groove.

3. The dust removal device according to claim 1, characterized in that, A third groove is opened on a second side of the galvanometer module (8); A fourth groove is opened on a first side of the dust removal cover (1); The dust removal device further includes: A second sealing ring, one side of the second sealing ring is embedded in the third groove, and the other side of the second sealing ring is embedded in the fourth groove.

4. The dust removal device according to claim 1, characterized in that, It further includes: A first fastener, the first fastener connects a second side of the dust removal cover (1) and a first side of the dust collection cover (2).

5. The dust removal device according to claim 1, wherein It further includes: A second fastener, the second fastener connects a second side of the galvanometer module (8) and a first side of the dust removal cover (1).

6. The dust removal device according to claim 1, wherein, It further includes: A light outlet (6), the light outlet (6) is opened on a second side of the dust collection cover (2) opposite to the first side and is disposed opposite to the processing substrate (9).

7. The dust removal device according to claim 1, characterized in that, The size of the dust collection port (3) is: 20 to 50 cm 2 .

8. The dust removal device according to claim 1, wherein, The dust removal cover (1) is a visible glass cover with the functions of laser prevention and radiation prevention.

9. The dust removal device according to claim 1, characterized in that, The dust removal cover (1) is a sheet metal part with the functions of laser prevention and radiation prevention.

10. A laser scribing device for a photovoltaic module, characterized in that, It includes the dust removal device according to any one of claims 1-9.

Images