Platform assembly, laser processing device and solar cell manufacturing production line

Abstract

The utility model relates to a platform assembly, a laser processing device and a solar cell manufacturing production line. The platform assembly comprises a bearing platform comprising a bearing surface; and the light processing coating is arranged on the bearing surface in a covering manner and is configured to be used for reflecting or absorbing the laser. According to the platform assembly, the laser processing device and the solar cell manufacturing production line, the probability that dents are formed in the bearing platform can be reduced, and damage to the bearing platform can be relieved.

Description

Platform components, laser processing equipment, and solar cell manufacturing production lines Technical Field

[0001] This application relates to the field of battery technology, specifically to a platform component, a laser processing device, and a solar cell manufacturing production line. Background Technology

[0002] In the manufacturing process of solar cells, laser processing equipment is used to process the cells, such as laser etching, laser welding, and laser film opening. During processing, due to operator error, inaccurate cell positioning, warping, or other issues, the laser beam can easily be projected directly onto the support platform of the laser processing equipment, creating dents on the support surface of the cell and even damaging its flatness, thus affecting the subsequent processing accuracy of the cell. Summary of the Invention

[0003] Therefore, it is necessary to provide a platform component, laser processing device, and solar cell manufacturing production line that can reduce the probability of dent formation on the bearing platform and mitigate damage to the bearing platform, in order to address the above problems.

[0004] A platform component, the platform component comprising:

[0005] The support platform includes the support surface; and

[0006] A light-treated coating is applied to the bearing surface and configured to reflect or absorb laser light.

[0007] In some embodiments, the support platform has an air extraction chamber, the support surface has an adsorption hole communicating with the air extraction chamber, and the light treatment coating has a through hole, the adsorption hole communicating with the through hole.

[0008] In some embodiments, there are multiple adsorption pores and through pores, and all adsorption pores and through pores are arranged in a matrix and connected one-to-one.

[0009] In some embodiments, a mounting groove is formed on the bearing surface, and an avoidance hole is formed on the light-treated coating, wherein the orthographic projection of the avoidance hole in the thickness direction of the bearing platform falls into the mounting groove;

[0010] The platform component also includes a laser sensor disposed within the mounting slot and configured to send an alarm signal when a laser is detected.

[0011] In some embodiments, the platform assembly further includes a cooling platform stacked on the underside of the support platform facing away from the light-processing coating, and the cooling platform having flow channels configured to allow coolant to flow when the temperature of the support platform is above a set temperature threshold.

[0012] In some embodiments, the cooling platform has a groove on its top surface facing the support platform, the groove forming the flow channel, and the support platform sealing the opening of the groove.

[0013] In some embodiments, the platform component further includes a temperature sensor mounted on the cooling platform and in contact with the support platform, the temperature sensor being configured to measure the temperature of the support platform.

[0014] In some embodiments, the support platform is an alumina ceramic platform.

[0015] A laser processing apparatus includes a platform component as described in any of the above embodiments.

[0016] A solar cell manufacturing production line includes a laser processing apparatus as described in the above embodiments.

[0017] Compared with the prior art, this application has the following beneficial effects:

[0018] The aforementioned platform components, laser processing equipment, and solar cell manufacturing production line, by incorporating a light-treatment coating, reduce the risk of laser beams directly hitting the support platform of the laser processing equipment due to operator error, inaccurate cell positioning, warping, or other issues. This ensures the flatness of the support platform and improves the processing accuracy and product yield of the solar cells. Attached Figure Description

[0019] Figure 1 is an exploded view of the platform components in one embodiment of this application.

[0020] Icon labels:

[0021] 100. Platform components;

[0022] 10. Load-bearing platform; 20. Light-treated coating; 30. Cooling platform;

[0023] 11. Bearing surface; 111. Mounting groove; 12. Adsorption hole; 13. Second fastening hole; 21. Through hole; 22. Clearance hole; 23. First fastening hole; 31. Flow channel; 32. Assembly groove; 33. Third fastening hole. Detailed Implementation

[0024] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0025] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0026] Furthermore, the terms "first" and "second" are configured for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0027] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0028] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0029] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0030] In the manufacturing process of solar cells, laser processing equipment is used to process the cells, such as laser etching, laser welding, and laser film opening. During processing, due to operator error, inaccurate cell positioning, warping, or other issues, the laser beam can easily be projected directly onto the support platform of the laser processing equipment, creating dents on the support surface of the cell and even damaging its flatness, thus affecting the subsequent processing accuracy of the cell.

[0031] Referring to Figure 1, to alleviate the above-mentioned problems, this application provides a platform assembly 100, which is applied to a laser processing apparatus. The platform assembly 100 includes a support platform 10 and a light processing coating 20. The support platform 10 includes a support surface 11, and the light processing coating 20 is applied to the support surface 11 and configured to reflect or absorb laser light.

[0032] The light-treatment coating 20 completely covers the support surface 11. The solar cell is positioned on the side of the light-treatment coating 20 facing away from the support platform 10 and is processed using a laser. As an example, the light-treatment coating 20 can be a reflective coating with high reflectivity and resistance to laser damage. This reflective coating has good laser reflection properties, reducing the laser energy absorbed by the support platform 10 and lowering the risk of laser damage to the support platform 10. Alternatively, the light-treatment coating 20 can be a light-absorbing coating with high absorptivity and resistance to laser damage. This light-absorbing coating has good laser absorption properties, reducing the risk of laser damage to the support platform 10 after light absorption. Therefore, by setting the light-treatment coating 20, the risk of laser directly projecting onto the support platform 10 of the laser processing device due to operator error, inaccurate solar cell positioning, warping, etc., is reduced, ensuring the flatness of the support platform 10 and improving the processing accuracy and product yield of the solar cells.

[0033] As an example, the support platform 10 can be an alumina ceramic platform. Traditional support platforms 10 are primarily made of metal. However, in actual production operations, due to human error, differences in cell positioning, cell warping, and other factors, accidental laser irradiation on the support platform 10 frequently occurs. This not only damages the support surface 11 of the support platform 10, causing defects such as pits and cracks, but also accumulates with repeated use, severely affecting the flatness and accuracy of the support surface 11. Ultimately, this leads to inaccurate cell positioning during processing, decreased processing precision, and a lower product yield, resulting in significant economic losses for the company. By designing the support platform 10 as an alumina ceramic platform, which possesses advantages such as high hardness, high temperature resistance, and good chemical stability, the likelihood of damage under laser irradiation is reduced. This effectively minimizes damage caused by human error, positioning differences, and cell warping, ensuring the processing precision of the cells and improving production efficiency and product quality.

[0034] Of course, the materials used to make the platform are not limited to the one mentioned above. Other materials with advantages such as high hardness, high temperature resistance, and good chemical stability can also be used. No specific restrictions are made here.

[0035] In some embodiments, the support platform 10 has an air extraction chamber, the support surface 11 has an adsorption hole 12 communicating with the air extraction chamber, and the light treatment coating 20 has a through hole 21, the adsorption hole 12 communicating with the through hole 21.

[0036] Specifically, the suction chamber of the supporting platform 10 is connected to the suction pump of the laser processing device. When the suction pump is working, gas is discharged through the through hole 21, the adsorption hole 12, and the suction chamber, creating a negative pressure within these components. This allows the solar cells to adhere to the platform assembly 100, reducing warping caused by heat during laser processing and improving processing accuracy. Furthermore, the suction chamber, adsorption hole 12, and through hole 21 prevent the solar cells from moving during laser processing, further enhancing processing accuracy.

[0037] In some embodiments, there are multiple adsorption holes 12 and through holes 21, and all adsorption holes 12 and through holes 21 are arranged in a matrix and connected one-to-one. This design allows the platform assembly 100 to effectively adsorb the entire battery cell, further reducing the warping of the battery cell caused by heat during laser processing.

[0038] In some embodiments, a mounting groove 111 is provided on the bearing surface 11, and an avoidance hole 22 is provided on the light treatment coating 20. The orthographic projection of the avoidance hole 22 in the thickness direction of the bearing platform 10 falls into the mounting groove 111. The platform assembly 100 also includes a laser sensor, which is disposed in the mounting groove 111 and configured to send an alarm signal when a laser is detected.

[0039] As an example, the central axis of the mounting groove 111 and the clearance hole 22 coincides with the central axis of the bearing platform 10.

[0040] The laser sensor is connected to the controller of the laser processing device, which is also electrically connected to the laser emitter and alarm (e.g., an audible and visual alarm) of the laser processing device. When a battery cell is present on the platform assembly 100, it blocks the laser, preventing the laser sensor from detecting it. In this case, the controller controls the emitter to emit laser light to process the battery cell. When no battery cell is present on the platform assembly 100, the laser light enters the mounting slot 111 through the clearance hole 22 and is detected by the laser sensor. The laser sensor then sends a feedback alarm signal to the controller, which activates the alarm to alert the operator of a malfunction requiring immediate troubleshooting and resolution. Simultaneously, the controller also controls the laser emitter to stop emitting laser light, cutting off the laser energy output and preventing damage to the battery cell or platform assembly 100.

[0041] In some embodiments, the platform assembly 100 further includes a cooling platform 30, which is stacked on the bottom side of the support platform 10 away from the light-treated coating 20, and the cooling platform 30 is provided with a flow channel 31, which is configured to allow coolant to flow when the temperature of the support platform 10 is higher than a set temperature threshold.

[0042] The laser processing device also includes a cooling source and a cooling pump. The cooling pump is connected between the cooling source and the flow channel 31 of the cooling platform 30. When the temperature of the carrier platform 10 is higher than the set temperature threshold, the cooling pump is activated, so that the coolant can circulate between the flow channel 31 and the cooling source to cool the carrier platform 10 and reduce the possibility of damage caused by excessive temperature of the carrier platform 10 due to laser irradiation.

[0043] It is worth mentioning that after the coolant flows through the flow channel 31 of the cooling platform 30, it needs to be cooled by a fan, air conditioning system, etc., before flowing back to the cooling source. After the laser processing is completed, the coolant returns to the cooling source for storage.

[0044] It is understandable that the set temperature threshold is an abnormal temperature threshold for the carrier platform 10. When the temperature of the carrier platform 10 reaches the set temperature threshold, it means that the laser may have irradiated the carrier platform 10, causing the temperature of the carrier platform 10 to be abnormal.

[0045] In some embodiments, the cooling platform 30 has a groove on its top surface facing the support platform 10, the groove being configured to form a flow channel 31, and the support platform 10 sealing the opening of the groove.

[0046] As an example, the cooling tank may include multiple loop-shaped channels, all of which are arranged sequentially from the inside to the outside on the cooling platform 30 at intervals. Between each pair of adjacent loop-shaped channels, the outermost channel is arranged circumferentially along the innermost channel. Adjacent loop-shaped channels can be arranged independently, and the coolant flowing within them can flow without interference. Alternatively, all loop-shaped channels can be arranged sequentially from the inside to the outside on the cooling platform 30 and connected to each other, thereby extending the coolant flow path and improving the cooling effect.

[0047] Of course, the form of the groove is not limited to the one mentioned above. In other embodiments, the groove can also be an S-shaped groove, an N-shaped groove, etc.

[0048] The method of creating the flow channel 31 by opening the tank is simple and convenient, and facilitates the formation of the flow channel 31. The sealing of the opening of the tank by the support platform 10 allows the coolant to directly contact the support platform 10 during the flow of coolant through the tank, resulting in better cooling effect.

[0049] Of course, in other embodiments, the flow channel 31 is not limited to the one described above, and can also be in other forms. For example, the cooling platform 30 includes an upper platform and a lower platform. The surfaces of the upper platform and the lower platform facing each other are respectively provided with an upper groove and a lower groove. The upper groove of the upper platform and the lower groove of the lower platform are connected to form the flow channel 31.

[0050] In some embodiments, the platform component 100 further includes a temperature sensor mounted on the cooling platform 30 and in contact with the support platform 10, the temperature sensor being configured to measure the temperature of the support platform 10.

[0051] As an example, the cooling platform 30 is recessed on the surface of the support platform 10 to form an assembly groove 32. A temperature sensor is disposed in the assembly groove 32 and contacts the support platform 10 to measure the temperature of the support platform 10.

[0052] As an example, the assembly slot 32 can be located at the center of the cooling platform 30, and the central axis of the assembly slot 32 coincides with the central axis of the cooling platform 30 and the central axis of the bearing platform 10.

[0053] Both the temperature sensor and the cooling pump are electrically connected to the controller. The temperature sensor sends the measured temperature to the controller. When the temperature is higher than the set temperature threshold, the controller controls the cooling pump to work. The coolant circulates in the flow channel 31 of the cooling source and the cooling platform 30, and cools the support platform 10 to prevent the support platform 10 from being damaged due to overheating caused by debris on the support platform 10 blocking the laser sensor and causing the laser emitter to be falsely triggered.

[0054] In this application, with the dual protection of laser sensor and temperature sensor, the laser output can be quickly cut off when the operator accidentally touches the device, thus preventing damage to the support platform 10 from the source and significantly reducing the probability of damage to the support platform due to accidental touch.

[0055] In some embodiments, the light-treated coating 20 is provided with a first fastening hole 23, the support platform 10 is provided with a second fastening hole 13, and the cooling platform 30 is provided with a third fastening hole 33. Fasteners are inserted through the first fastening hole 23, the second fastening hole 13, and the third fastening hole 33 so that the platform assembly 100 can be precisely installed on the body of the laser processing device.

[0056] As an example, a first fastening hole 23 is provided at each corner of the light-treated coating 20, a second fastening hole 13 is provided at each corner of the support platform 10, and a third fastening hole 33 is provided at each corner of the cooling platform 30.

[0057] As an example, fasteners can be bolts, pins, or other components.

[0058] This application also provides a laser processing apparatus, which includes the platform component 100 as described in any of the above embodiments. The laser processing apparatus of this application has the effects of any of the above embodiments, and therefore will not be described again here.

[0059] In some embodiments, the laser processing apparatus further includes a body, a laser emitter, and a controller. The platform assembly 100 is fixed to the body by fasteners. The controller is electrically connected to the laser emitter and controls the laser emitter to emit laser light and process the solar cell.

[0060] In some embodiments, the laser processing apparatus further includes an alarm, which is electrically connected to a controller, and the controller controls the alarm to sound when the laser sensor detects a laser.

[0061] In some embodiments, the laser processing apparatus further includes a vacuum pump electrically connected to a controller, which controls the vacuum pump to extract gas from the vacuum chamber to create a negative pressure in the vacuum chamber, the adsorption hole 12, and the through hole 21.

[0062] In some embodiments, the laser processing apparatus further includes a cooling source and a cooling pump. The cooling pump is electrically connected to the controller. When the temperature measured by the temperature sensor is higher than a set temperature threshold, the controller controls the cooling pump to start so that the coolant can circulate in the flow channel 31 of the cooling source and the cooling platform 30 and cool the support platform 10.

[0063] This application also provides a solar cell manufacturing production line, which includes the laser processing apparatus as described in the above embodiments. The solar cell manufacturing production line of this application has the effects of any of the above embodiments, and therefore will not be repeated here.

[0064] The aforementioned platform component 100, laser processing device, and solar cell manufacturing production line, by setting up a light treatment coating 20, reduce the risk of laser directly projecting onto the support platform 10 of the laser processing device due to operator error, inaccurate cell positioning, warping, etc., ensuring the flatness of the support platform 10, and improving the processing accuracy and product yield of the cells.

[0065] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0066] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A platform component, characterized in that, The platform component includes: a support platform (10) including a support surface (11); and a light treatment coating (20) applied to the support surface (11) and configured to reflect or absorb laser light.

2. The platform component according to claim 1, characterized in that, The support platform (10) has an air extraction chamber, and the support surface (11) has an adsorption hole (12) that communicates with the air extraction chamber. The light treatment coating (20) has a through hole (21), and the adsorption hole (12) communicates with the through hole (21).

3. The platform component according to claim 2, characterized in that, There are multiple adsorption holes (12) and through holes (21), and all adsorption holes (12) and through holes (21) are arranged in a matrix and connected one by one.

4. The platform component according to claim 1, characterized in that, The bearing surface (11) is provided with a mounting groove (111), and the light treatment coating (20) is provided with a clearance hole (22). The orthographic projection of the clearance hole (22) in the thickness direction of the bearing platform (10) falls into the mounting groove (111). The platform assembly also includes a laser sensor, which is disposed in the mounting groove (111) and configured to send an alarm signal when a laser is detected.

5. The platform component according to claim 1, characterized in that, The platform assembly also includes a cooling platform (30), which is stacked on the bottom side of the support platform (10) facing away from the light treatment coating (20), and the cooling platform (30) is provided with a flow channel (31), which is configured to allow coolant to flow when the temperature of the support platform (10) is higher than a set temperature threshold.

6. The platform component according to claim 5, characterized in that, The cooling platform (30) has a groove on its top surface facing the support platform (10), the groove is configured to form the flow channel (31), and the support platform (10) seals the opening of the groove.

7. The platform component according to claim 5, characterized in that, The platform assembly also includes a temperature sensor mounted on the cooling platform (30) and in contact with the support platform (10), the temperature sensor being configured to measure the temperature of the support platform (10).

8. The platform component according to claim 1, characterized in that, The support platform (10) is an alumina ceramic platform.

9. A laser processing apparatus, characterized in that, Includes the platform components as described in any one of claims 1 to 8 above.

10. A solar cell manufacturing production line, characterized in that, Including the laser processing apparatus as described in claim 9 above.

Images