Laser processing apparatus for photovoltaic cells

Abstract

The application provides a laser processing device for photovoltaic cells, which comprises a bearing device and a laser processing device. The bearing device comprises a linear drive module, two rotary actuators connected to the linear drive module, and two bearing tables connected to the two rotary actuators one by one. The bearing device has a first feeding and discharging station, a processing station and a second feeding and discharging station arranged in sequence along a first direction. When one of the two bearing tables is located at the first feeding and discharging station, the other is located at the processing station, or when one of the two bearing tables is located at the processing station, the other is located at the second feeding and discharging station. The laser processing device comprises two side laser processing units arranged at the side of the processing station, and the laser beams are emitted from the side of the bearing table to process the two sides of the cell. The device can realize mass production of laser processing of the side of the cell, remove the side plating, and solve the problem of the decline of the electrical performance of the cell caused by the plating.

Description

Technical Field

[0001] This application belongs to the field of photovoltaic technology, specifically relating to a laser processing device for photovoltaic cells. Background Technology

[0002] Currently, laser processing technology has been widely applied in the photovoltaic field. Conventional laser processing equipment for photovoltaic cells generally includes a main processing module, a loading and unloading conveyor, and an unloading conveyor. The main processing module includes a processing table for carrying the cells to be processed and a laser processing module for processing the cells. The loading and unloading conveyor is used to transport the cells for loading the cells to be processed, and the unloading conveyor is used to unload the processed cells.

[0003] Conventional laser processing technology for solar cells typically only processes the front and back sides of the cells; mass production solutions for processing the sides are currently scarce. One existing method involves stacking the cells, tilting them so the sides face upwards, and then rotating the cell 90 degrees after processing one side, repeating this process for all four sides. This method requires stacking the cells, which easily causes frictional damage between them, especially for back-contact solar cells. Furthermore, there are currently no effective clamping devices available, as processing the sides after stacking only allows clamping two surfaces of the cells, which are easily broken due to their brittleness. Utility Model Content

[0004] To address the aforementioned technical problems, this application proposes a laser processing device for photovoltaic cells, comprising a support device and a laser processing apparatus.

[0005] The support device includes a linear drive module, two rotary actuators connected to the linear drive module, and two support platforms connected to the two rotary actuators respectively.

[0006] The bearing device has a first loading / unloading station, a processing station, and a second loading / unloading station arranged sequentially along a first direction. The linear drive module drives one of the rotary actuators and its connected bearing platform to reciprocate between the first loading / unloading station and the processing station, and drives the other rotary actuator and its connected bearing platform to reciprocate between the second loading / unloading station and the processing station. When one of the two bearing platforms is located at the first loading / unloading station, the other bearing platform is located at the processing station, or when one of the bearing platforms is located at the processing station, the other bearing platform is located at the second loading / unloading station.

[0007] The laser processing device includes two laser processing units, both of which are located on the side of the processing station. The processing station is the location of the battery cell when processing the side of the battery cell. When the linear drive module drives any one of the carriers to move to the processing station, both laser processing units are located on the side of the carrier that has moved to the processing station. The two laser processing units simultaneously emit laser beams from the side of the carrier to process the two sides of the battery cell.

[0008] As a further example, the two laser processing units are located above or below the side of the processing station. When the linear drive module drives any one of the carriers to move to the processing station, both laser processing units are located above or below the side of the processing station.

[0009] As a further example, the two laser processing units are located on opposite sides of the processing station and on both sides of the support device along a second direction, which is perpendicular to the first direction; when the linear drive module drives any one of the support platforms to move to the processing station, the two laser processing units are located on opposite sides of the support platform that has moved to the processing station; after the two laser processing units have processed the opposite sides of the battery cell, the rotary actuator drives the support platform to rotate 90°, and the two laser processing units process the remaining opposite sides of the battery cell;

[0010] Alternatively, the two laser processing units are located on two adjacent sides of the processing station. When the linear drive module drives any one of the carriers to move to the processing station, the two laser processing units are located on two adjacent sides of the carrier that has moved to the processing station. After the two laser processing units have processed the two adjacent sides of the battery cell, the rotary actuator drives the carrier to rotate 180°, and the two laser processing units have processed the remaining two adjacent sides of the battery cell.

[0011] As a further example, the two laser processing units are located on two adjacent sides of the processing station and below the side of the processing station, wherein the support platform is located on the side of the linear drive module along a second direction, which is perpendicular to the first direction; the two laser processing units are located on the same side of the linear drive module.

[0012] As a further example, the laser processing unit includes a laser that emits a laser beam and a laser scanning mechanism that controls the scanning direction of the laser beam. The laser scanning mechanism includes a galvanometer and a field lens, the field lens being fixedly disposed, and the center of the field lens being located on the side of the processing station.

[0013] As a further example, the linear drive module is a linear motor module, and the linear motor module has at least one mover.

[0014] When the linear motor module has two movers, the two support platforms are respectively connected to one of the movers.

[0015] As a further example, the laser processing equipment also includes a parallel and separate loading conveyor line and a unloading conveyor line, which transport battery cells in opposite directions along a first direction, and the carrying device is located between the loading conveyor line and the unloading conveyor line;

[0016] The laser processing equipment also includes a first loading and unloading transport module and a second loading and unloading transport module. The first loading and unloading transport module is used to pick up the battery cells to be processed on the loading conveyor line and pick up the processed battery cells that have been moved to the carrier platform of the first loading and unloading station, or to place the battery cells to be processed on the carrier platform that has been moved to the first loading and unloading station and place the processed battery cells on the unloading conveyor line.

[0017] The second loading and unloading conveying module is used to pick up the battery cells to be processed on the loading conveyor line and pick up the processed battery cells that have been moved to the carrier platform of the second loading and unloading station, or to place the battery cells to be processed on the carrier platform that has been moved to the second loading and unloading station and place the processed battery cells on the unloading conveyor line.

[0018] As a further example, both the first loading and unloading conveying module and the second loading and unloading conveying module are L-shaped rotary robotic arms. The L-shaped rotary robotic arm includes a rotary drive actuator and two mutually perpendicular robotic arms connected to the rotary drive actuator. The ends of the two robotic arms are respectively connected to suction cups that adsorb battery cells downwards. The L-shaped rotary robotic arm can rotate 90° at a time.

[0019] Alternatively, the first loading and unloading transport module and the second loading and unloading transport module are linear robotic arms. The linear robotic arm includes a linear drive actuator and two spaced-apart suction cups that adsorb battery cells downwards, connected to the linear drive actuator. The linear drive actuator drives the two suction cups to move along a second direction, which is perpendicular to the first direction.

[0020] As a further example, the laser processing equipment also includes two positioning devices for adjusting the position of the battery cells;

[0021] The two positioning devices are respectively set at the first loading and unloading station and the second loading and unloading station. After the carrier moves to the first loading and unloading station or the second loading and unloading station and receives the battery cell, the positioning device clamps and positions the battery cell from the four sides toward the center.

[0022] Alternatively, the laser processing equipment may further include a feeding and conveying assembly line, which includes two positioning belts respectively corresponding to the first loading and unloading station and the second loading and unloading station. Two positioning devices are respectively set at the locations of the two positioning belts. After the positioning belts receive the battery cells, the positioning devices clamp and position the battery cells from the four sides toward the center.

[0023] Alternatively, the laser processing equipment may further include two vision positioning devices respectively disposed at the first loading / unloading station and the second loading / unloading station, the vision positioning devices being located above the carrier device; the positioning device is a linear drive device capable of driving the carrier platform to move along a second direction, the second direction being perpendicular to the first direction, the two positioning devices being disposed one-to-one with the two carrier platforms, the positioning device being connected to the corresponding carrier platform and rotary actuator, after the carrier platform moves to the first loading / unloading station or the second loading / unloading station and receives the battery cell, the linear drive module adjusts the position of the battery cell in the first direction, the positioning device adjusts the position of the battery cell in the second direction, and the rotary actuator adjusts the angle of the battery cell in the horizontal plane.

[0024] According to another aspect of this application, a laser processing device for photovoltaic cells is also proposed, comprising a laser processing module and at least two support devices. The laser processing module includes at least four laser processing units, and each support device includes a linear drive module, two rotary actuators connected to the linear drive module, and two support stages respectively connected to the two rotary actuators.

[0025] Each of the aforementioned carrier devices has a first loading / unloading station, a processing station, and a second loading / unloading station arranged sequentially along a first direction. The linear drive module drives one of the rotary actuators and its connected carrier platform to reciprocate between the first loading / unloading station and the processing station, and drives the other rotary actuator and its connected carrier platform to reciprocate between the second loading / unloading station and the processing station. When one of the two carrier platforms is located at the first loading / unloading station, the other carrier platform is located at the processing station, or when one of the carrier platforms is located at the processing station, the other carrier platform is located at the second loading / unloading station.

[0026] At least two of the aforementioned support devices are arranged along a second direction, which is perpendicular to the first direction;

[0027] All of the laser processing units are arranged on the side of each of the processing stations, wherein two laser processing units are arranged on the side of each processing station, and are arranged adjacent to or opposite to the two laser processing units corresponding to each processing station.

[0028] When the linear drive module of any of the aforementioned carrier devices drives one of its corresponding carrier platforms to move to its corresponding processing station, there are two laser processing units located on the side of the carrier platform that has moved to the processing station.

[0029] According to another aspect of this application, a laser processing device for photovoltaic cells is also proposed, comprising a support device and a laser processing device.

[0030] The support device includes a linear drive module, two rotary actuators connected to the linear drive module, and two support platforms connected to the two rotary actuators respectively.

[0031] The supporting device includes a first loading station, a first unloading station, a processing station, a second loading station, and a second unloading station arranged along a first direction;

[0032] The linear drive module includes two drive components. One drive component is used to drive one of the carrier platforms to reciprocate along a first direction. The other drive component is used to drive its corresponding carrier platform to move between a first loading station, a first unloading station, and a processing station. The other drive component is used to drive its corresponding carrier platform to move between a second loading station, a second unloading station, and a processing station.

[0033] The laser processing device includes two laser processing units, both of which are located on the side of the processing station. The processing station is the location of the battery cell when processing its side. When the linear drive module drives any one of the carriers to move to the processing station, both laser processing units are located on the side of the carrier that has moved to the processing station.

[0034] As a further example, the laser processing equipment also includes a first feeding line, a first unloading line, a second feeding line, and a second unloading line that are separately arranged along a first direction and are arranged in parallel. The first feeding line and the first unloading line transport battery cells in the opposite direction to the second direction, and the second feeding line and the second unloading line transport battery cells in the opposite direction to the second direction. The second direction is perpendicular to the first direction.

[0035] The laser processing equipment also includes a first loading and unloading module, a first unloading and unloading module, a second loading and unloading module, and a second unloading and unloading module, all of which include a handling drive actuator and at least one suction cup connected to the handling drive actuator;

[0036] The first loading and handling module drives its corresponding suction cup to move back and forth between the first loading assembly line and the first loading station, and the first unloading and handling module drives its corresponding suction cup to move back and forth between the first unloading station and the first unloading assembly line.

[0037] The second loading and handling module drives its corresponding suction cup to move back and forth between the second loading production line and the second loading station, and the second unloading and handling module drives its corresponding suction cup to move back and forth between the second unloading station and the second unloading production line.

[0038] As a further example, the first loading and unloading module, the second loading and unloading module, and the second unloading module are all linear handling arms, arranged along the first direction, and the handling drive actuators of the four modules drive their corresponding suction cups to reciprocate along the second direction.

[0039] As a further example, the number of the carrier device and the laser processing device are both two and correspond one-to-one, and the two carrier devices are set separately along the second direction, and all the carrier platforms are located on the side of all loading and unloading lines along the second direction.

[0040] Each of the aforementioned transport drive actuators is connected to two suction cups, with each suction cup corresponding to the loading or unloading of a carrier platform.

[0041] As a further example, the laser processing unit is located above or below the side of the processing station. When the linear drive module drives any one of the carriers to move to the processing station, both laser processing units are located above or below the side of the carrier that has moved to the processing station.

[0042] The laser processing equipment for photovoltaic cells proposed in this application achieves mass production of laser processing on the sides of solar cells by employing a linear drive module, a rotary actuator, and two laser processing units located on the side of the cells. This eliminates the side plating issues caused by processing the front or back of the cells, solving the problem of decreased electrical performance due to plating. Furthermore, while ensuring high throughput, this laser processing equipment processes the sides of solar cells one by one, avoiding the technical problem of cell damage that easily occurs when stacking cells for side processing in existing technologies.

[0043] Furthermore, since two laser processing units are used to process both sides of a single solar cell simultaneously, production capacity is further increased. The laser processing equipment also occupies little space and has a rational layout. Attached Figure Description

[0044] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, the drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0045] The structures, proportions, sizes, etc., shown in the accompanying drawings are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the implementation conditions of this application. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0046] Figure 1 This is a schematic diagram of the structure of a laser processing equipment for photovoltaic cells according to an embodiment of this application;

[0047] Figure 2 This is a schematic diagram of the arrangement of the support device and the laser processing device according to an embodiment of this application;

[0048] Figure 3 This is a schematic diagram of the arrangement of a positioning device according to an embodiment of this application;

[0049] Figure 4 This is a schematic diagram of the arrangement of the positioning device according to another embodiment of this application;

[0050] Figure 5 This is a schematic diagram of the arrangement of the positioning device according to another embodiment of this application;

[0051] Figure 6 This is a schematic diagram of the structure of a laser processing equipment for photovoltaic cells according to another embodiment of this application;

[0052] Figure 7 This is a schematic diagram of the structure of a laser processing equipment for photovoltaic cells according to another embodiment of this application;

[0053] Figure 8 This is a schematic diagram of the structure of a laser processing device for photovoltaic cells according to another embodiment of this application. Detailed Implementation

[0054] The embodiments of this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0055] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0056] like Figure 1 As shown, this application proposes a laser processing device for photovoltaic cells, including a support device 100 and a laser processing device 200. The support device 100 includes a linear drive module, two rotary actuators connected to the linear drive module, and support tables 110 connected one-to-one with each of the two rotary actuators. The support tables 110 are used to support the photovoltaic cells. One-to-one correspondence means that one support table 110 is connected to each rotary actuator.

[0057] The carrier device 100 has a first loading / unloading station A, a processing station B, and a second loading / unloading station C arranged sequentially along a first direction. A linear drive module drives two carrier platforms 110 to reciprocate along the first direction. Specifically, the linear drive module drives one rotary actuator and its connected carrier platform 110 to reciprocate between the first loading / unloading station A and the processing station B, and drives the other rotary actuator and its connected carrier platform 110 to reciprocate between the second loading / unloading station C and the processing station B. When one of the two carrier platforms 110 is located at the first loading / unloading station A, the other carrier platform 110 is located at the processing station B, or when one carrier platform 110 is located at the processing station B, the other carrier platform 110 is located at the second loading / unloading station C. The first direction is, for example, Figure 1 The X-axis direction. When the linear drive module drives the carrier platform 110 to move, it drives the carrier platform 110 connected to the rotary actuator to move by driving the rotary actuator.

[0058] The laser processing device 200 includes two laser processing units 210, both of which are located on the side of processing station B, the position where the battery cell is located when processing its sides. When the linear drive module drives any one of the support platforms 110 to move to processing station B, both laser processing units 210 are located on the side of the support platform 110 that has moved to processing station B. The two laser processing units 210 simultaneously emit laser beams from the side of the support platform 110 to process the two sides of the battery cell to remove the coating. When one of the support platforms 110 moves to processing station B, the two laser processing units 210 simultaneously process the two sides first. Then, after the rotary actuator drives the support platform 110 to rotate (i.e., after the battery cell rotates), the two laser processing units 210 simultaneously complete the processing of the remaining two sides.

[0059] During operation, when the linear drive module drives one of the two support platforms 110 to one of the loading / unloading stations, the support platform 110 at that station unloads and loads battery cells, while the battery cells on the other support platform 110 at processing station B undergo side processing. After all four sides have been processed, the support platform 110 at processing station B moves to the other loading / unloading station to unload the processed battery cells and load the battery cells to be processed. Meanwhile, the battery cells previously held by the support platform 110 at the loading / unloading station move to processing station B for side processing, and this process is repeated.

[0060] Specifically, when the carrier platform 110 moves to processing station B, the laser processing unit 210 can be located either on the front side of the carrier platform 110 (where the laser beam directly irradiates the side of the battery cell), or above or below the side of the carrier platform 110 (where the irradiation range of the laser beam covers the side of the battery cell). When the laser processing unit 210 is located above or below the side of the carrier platform 110 moved to processing station B, it can be that two laser processing units 210 are simultaneously located above or below the side, or one is located above the side and the other is located below the side.

[0061] To minimize damage to the edges of the solar cell surface during laser processing, preferably, the two laser processing units 210 are located above or below the side of the processing station B. Specifically, both laser processing units 210 are simultaneously located above or below the side of the support platform 110 that has moved to the processing station B. When the two laser processing units 210 are above the side of the support platform 110, the arrangement of the linear drive module and the support platform 110 is more flexible. In this case, it is preferable to have the side of the solar cell whose edge is not to be damaged facing the support platform 110. When the two laser processing units 210 are below the side of the support platform 110, damage to the edge of the upper surface of the solar cell can be avoided when the laser irradiates the side of the solar cell. This is especially important for back-contact solar cells, which are typically placed on the support platform 110 with the electrode side facing upwards, making damage to the upper surface edge even less desirable.

[0062] Furthermore, the two laser processing units 210 are located on opposite sides of the processing station B and on both sides of the support device 100 along a second direction, which is perpendicular to the first direction. When the linear drive module drives any one of the support tables 110 to move to the processing station B, both laser processing units 210 are located on opposite sides of the support table 110 that has moved to the processing station B. After the two laser processing units 210 have processed the opposite sides of the battery cell, the rotary actuator drives the support table 110 to rotate 90°, and the two laser processing units 210 process the remaining opposite sides of the battery cell, for example, as shown in the image. Figure 1 , Figure 3 , Figure 4 , Figure 5 As shown; or two laser processing units 210 are located on adjacent sides of processing station B. When the linear drive module drives any one of the carrier platforms 110 to move to processing station B, both laser processing units 210 are located on adjacent sides of the carrier platform 110 that has moved to processing station B. After the two laser processing units have processed the adjacent sides of the battery cell, the rotary actuator drives the carrier platform to rotate 180°. After the two laser processing units 210 have processed the remaining adjacent sides of the battery cell, the two laser processing units 210 are located on the same side of the linear drive module, for example, as shown. Figure 2 , Figure 8 As shown.

[0063] Furthermore, when the two laser processing units 210 are located on adjacent sides of the support platform 110 moved to processing station B and below the side of processing station B, such as Figure 2 As shown, the support platform 110 is located on the side of the linear drive module 120 along the second direction, which is perpendicular to the first direction. Figure 2 The second direction is the Y-axis direction. (Combined) Figure 2It can be seen that when two laser processing units 210 are located on adjacent sides of the support platform that moves to processing station B, one of the laser processing units 210 is located on the moving path of the support platform 110. By setting the support platform 110 on the side of the linear drive module 120, that is, setting the center of the support platform 110 off-center relative to the linear drive module 120, the linear drive module 120 can be prevented from driving the support platform 110 in the first direction (i.e., Figure 2 When the laser moves along the X-axis, it collides with the laser processing unit 210. At this time, two adjacent laser processing units 210 are located on the same side of the linear drive module 120.

[0064] More specifically, when the linear drive module 120 drives the two support platforms 110 to reciprocate along the first direction, it simultaneously drives the battery cells carried on the two support platforms 110 to move together. The linear drive module 120 can be, for example, a linear motor module or other common linear modules, as long as it can carry the support platforms 110 to perform reciprocating linear motion along the first direction. Preferably, the linear drive module 120 is a linear motor module, which mainly consists of a stator, a mover, a guide rail, a slider, and a controller.

[0065] Furthermore, when the linear drive module 120 is a linear motor module, the number of movers in the linear motor module is at least one; that is, one mover can drive two carrier platforms 110 to move synchronously, or two movers can each drive one carrier platform 110 to move, allowing for more flexible independent control. When the linear motor module 120 has two movers, the two carrier platforms 110 are each connected to one of the movers, and one mover drives one carrier platform 110 to move.

[0066] The rotary actuator, such as a DD motor, can drive the carrier platform 110 to rotate by a certain angle, such as 90° or 180°, thereby rotating the carried solar cell to process various sides of the solar cell. The laser processing unit 210 includes a laser that emits a laser beam and a laser scanning mechanism that controls the scanning direction of the laser beam. The laser scanning mechanism includes, for example, a galvanometer and a field lens. Both laser processing units 210 described above are located on the side of the carrier platform that moves to processing station B. Specifically, when the carrier platform 110 moves to processing station B, the center of the field lens is located on the side of the carrier platform 110 (that is, not within the area of ​​the carrier platform 110 that has moved to processing station B). This arrangement allows the galvanometer to control the laser beam to irradiate the side of the solar cell after passing through the field lens.

[0067] The laser processing equipment for photovoltaic cells proposed in this application achieves mass production of laser processing on the sides of solar cells by employing a linear drive module in conjunction with a rotary actuator and a laser processing unit located on the side of the solar cell. This eliminates the side plating issues caused by processing the front or back of the solar cell, solving the problem of decreased electrical performance due to plating. Furthermore, while ensuring high production capacity, the side processing of each solar cell individually avoids the technical problem of cell damage during stacked side processing in existing technologies. Moreover, since the loading and unloading stations are combined into one station, solar cell loading and unloading can be performed simultaneously, further increasing production capacity.

[0068] Furthermore, since two laser processing units simultaneously process both sides of a single solar cell, production capacity can be further increased. Moreover, this laser processing equipment requires minimal space and has a rational layout.

[0069] As another embodiment, such as Figure 1 As shown, the laser processing equipment also includes a parallel and separate loading conveyor line 310 and a unloading conveyor line 320, which transport battery cells in opposite directions along the first direction. The carrying device 100 is located between the loading conveyor line 310 and the unloading conveyor line 320.

[0070] The laser processing equipment also includes a first loading and unloading transport module 410 and a second loading and unloading transport module 420. The first loading and unloading transport module 410 is used to pick up the battery cells to be processed on the loading conveyor line 310 and pick up the processed battery cells that have been moved to the carrier platform 110 of the first loading and unloading station A, or to place the battery cells to be processed on the carrier platform 110 that has been moved to the first loading and unloading station A and place the processed battery cells on the unloading conveyor line 320.

[0071] The second loading and unloading conveying module 420 is used to pick up the battery cells to be processed on the loading conveying line 310 and pick up the processed battery cells that have been moved to the carrier platform 110 of the second loading and unloading station C, or to place the battery cells to be processed on the carrier platform 110 that has been moved to the second loading and unloading station C and place the processed battery cells on the unloading conveying line 320.

[0072] Specifically, both the loading conveyor line 310 and the unloading conveyor line 320 are belt conveyor lines. To facilitate loading and unloading, both the loading conveyor line 310 and the unloading conveyor line 320 include multiple belt conveyor sections. Preferably, the loading conveyor line 310 and the unloading conveyor line 320 have opposite conveying directions. For example, the loading conveyor line 310 conveys battery cells along the positive X-axis, and the unloading conveyor line 320 conveys battery cells along the negative X-axis.

[0073] Furthermore, such as Figure 1 As shown, both the first loading and unloading conveying module 410 and the second loading and unloading conveying module 420 are L-shaped rotary robotic arms. The L-shaped rotary robotic arm includes a rotary drive actuator and two mutually perpendicular robotic arms connected to the rotary drive actuator. The ends of the two robotic arms are respectively connected to suction cups that adsorb battery cells downwards. The L-shaped rotary robotic arm can rotate 90° at a time.

[0074] Or, such as Figure 7 As shown, the first loading and unloading transport module 410 and the second loading and unloading transport module 420 are linear robotic arms. The linear robotic arm includes a linear drive actuator and two suction cups that are spaced apart and downwardly adsorb battery cells connected to the linear drive actuator. The linear drive actuator drives the suction cups to move along a second direction, which is perpendicular to the first direction.

[0075] Both the first loading / unloading conveying module 410 and the second loading / unloading conveying module 420 in the two embodiments described above can realize the loading of battery cells from the loading conveyor line 310 to the carrier platform 110 and the unloading / unloading of battery cells from the carrier platform 110 to the unloading conveyor line 320. Furthermore, since both the first loading / unloading conveying module 410 and the second loading / unloading conveying module 420 have two suction cups, the two suction cups can work simultaneously to unload processed battery cells and load cells to be processed simultaneously, thereby increasing production capacity. The difference between the two embodiments is that the L-shaped rotary robotic arm switches its working state by rotational motion, while the linear robotic arm switches its working state by linear motion along a second direction.

[0076] The detailed working process is described by taking the example of the first support platform 110 moving back and forth between the first loading / unloading station A and the processing station B, and the second support platform 110 moving back and forth between the second loading / unloading station C and the processing station B. Further assuming that the first carrier platform 110 has just moved to the first loading / unloading station A with the processed battery cells, and the second carrier platform 110 has just moved to the processing station B with the battery cells to be processed, then the two laser processing units 210 process the side of the battery cells carried by the second carrier platform 110. The loading and unloading of battery cells is completed on the first carrier platform 110. Specifically, one of the two suction cups of the first loading / unloading conveyor module 410 picks up the battery cells to be processed on the loading conveyor line 310, while the other suction cup picks up the processed battery cells that have moved to the carrier platform of the first loading / unloading station A. Then, the drive actuator in the first loading / unloading conveyor module 410 drives the suction cup that picked up the battery cells to be processed to move to the first loading / unloading station A, and at the same time drives the suction cup that picked up the processed battery cells to move to the unloading conveyor line 320. At this time, depending on the type of drive actuator, the two suction cups can be in rotary motion or linear motion. Then, the two suction cups release the battery cells they picked up at the same time, thus completing the unloading of the processed battery cells and the loading of the battery cells to be processed. Next, the first support platform 110 moves to processing station B, and the second support platform 110 moves to the second loading / unloading station C, repeating the above process repeatedly.

[0077] It should be noted that when the two laser processing units 210 are located on the adjacent sides of the support platform 110 that has been moved to the processing station B and are located below the side of the processing station B, in order to facilitate the loading and unloading of the first loading and unloading module 410 and the second loading and unloading module 420, the distance between any loading and unloading station and the loading and unloading conveyor line 310 and the unloading conveyor line 320 should be close. Taking the linear drive module being relatively closer to the loading and unloading conveyor line 310 as an example, the linear drive module can be set lower than the loading and unloading conveyor line 310 and closer to the loading and unloading conveyor line 310 in terms of height, or the positions of the loading and unloading conveyor line 310 and the unloading conveyor line 320 can be set so that their distance from the loading and unloading station is close.

[0078] As another embodiment, the laser processing equipment also includes two positioning devices for adjusting the position of the battery cells. This application provides at least three embodiments.

[0079] The first type, such as Figure 3 As shown, two positioning devices are fixedly installed at the first loading / unloading station A and the second loading / unloading station C, respectively. After the carrier platform 110 moves to the first loading / unloading station A or the second loading / unloading station C and receives the battery cells, the positioning devices clamp and position the battery cells from the four sides toward the center.

[0080] Specifically, as one concrete example, the positioning device includes a motor and four clamping components connected to the motor. The motor drives the clamping components located around the battery cell, or two motors each drive two clamping components to clamp the battery cell. Each clamping component is equipped with alignment wheels. The alignment wheels around the battery cell move from the four sides towards the center of the battery cell to complete the clamping and positioning. The clamping components can be mechanically connected to the motor. When the clamping components clamp inward, the alignment wheels move upward synchronously, so that the height of the alignment wheels is higher than the platform of the support table 110 to position the battery cell. When the alignment wheels are driven outward by the motor, they move downward synchronously to avoid the suction cups that transport the battery cell. After the battery cell is clamped and positioned at the first loading / unloading station A and the second loading / unloading station C, it is moved to the processing station B for processing. The specific structure of the positioning device is not limited, as long as it can complete the clamping and positioning function and does not interfere with other components. Figure 3 In the diagram, the arrows around the battery cell indicate the direction of movement when the clamping device holds the battery cell.

[0081] Alternatively, in the second type, the laser processing equipment also includes a loading and conveying assembly line 310, which includes two positioning belt lines respectively corresponding to the first loading / unloading station A and the second loading / unloading station C, such as... Figure 4 As shown, two positioning devices are respectively installed at the locations of two positioning conveyor belts 311. The positioning conveyor belts 311 are located at the end of the feeding conveyor line 310. After the positioning conveyor belts 311 receive the battery cells, the positioning devices clamp and position the battery cells from all four sides toward the center. The specific structure of the positioning devices can be referred to in the above embodiment. It should be noted that the height of the alignment rollers on the clamping components is higher than the belt height in the positioning conveyor belts 311 but lower than the height of the suction cups used to transport the battery cells. When other conveyor belts in the feeding conveyor line 310 transport the battery cells to the positioning conveyor belts 311, the motor drives the alignment rollers to move toward the center of the battery cells, thereby completing the clamping and positioning of the battery cells. The suction cups used to transport the battery cells then pick up the positioned battery cells and move them to the support platform 110, which has been moved to the loading and unloading station, for battery cell loading.

[0082] Or, a third option, such as Figure 5As shown, the laser processing equipment also includes two visual positioning devices (not shown in the figure) respectively set at the first loading / unloading station A and the second loading / unloading station C. The visual positioning devices are located above the carrier device 100 to take pictures of the battery cells and obtain their position information. These visual positioning devices are, for example, CCD cameras. The positioning device is a linear drive mechanism that can drive the carrier platform 110 to move along a second direction, such as a motor. The second direction is perpendicular to the first direction. The two positioning devices are arranged one-to-one with the two carrier platforms 110. The positioning devices are connected to their corresponding carrier platforms 110 and rotary actuators. Specifically, the two positioning devices are connected to the linear drive module, each positioning device is connected to one rotary actuator, and each rotary actuator is connected to one carrier platform 110. After the carrier platform 110 moves to the first loading / unloading station A or the second loading / unloading station C and receives the battery cells, the linear drive module adjusts the position of the battery cells in the first direction, the positioning devices adjust the position of the battery cells in the second direction, and the rotary actuators adjust the angle of the battery cells in the horizontal plane. During operation, the battery cells are first loaded onto the support platform 110, which has been moved to the loading / unloading station, using suction cups. Then, a vision positioning device takes a picture of the battery cell. Based on the position information obtained by the vision positioning device, the linear drive module, positioning device, and rotary actuator adjust the battery cell to the required position before side processing of the battery cell is performed at processing station B. More specifically, the position of the battery cell can be adjusted at the loading / unloading station or during the process of moving the battery cell from the loading / unloading station to processing station B.

[0083] The positioning device of this application is not limited to the above example; it can be used as long as it can achieve the positioning of the battery cell before processing.

[0084] To further increase production capacity, multiple support devices arranged side-by-side can be installed. According to another aspect of this application, a laser processing device for photovoltaic cells is also proposed, such as… Figure 6 As shown, it includes a laser processing module 200 and at least two support devices 100. The laser processing module 200 includes at least four laser processing units 210. Each support device 100 includes a linear drive module, two rotary actuators connected to the linear drive module, and two support platforms 110 connected to the two rotary actuators respectively.

[0085] Each carrier device 100 has a first loading / unloading station A, a processing station B, and a second loading / unloading station C arranged sequentially along a first direction. A linear drive module drives one of the rotary actuators and its connected carrier platform 110 to reciprocate between the first loading / unloading station A and the processing station B, and drives the other rotary actuator and its connected carrier platform 110 to reciprocate between the second loading / unloading station C and the processing station B. When one of the two carrier platforms 110 is located at the first loading / unloading station A, the other carrier platform 110 is located at the processing station B, or when one of the carrier platforms 110 is located at the processing station B, the other carrier platform 110 is located at the second loading / unloading station C.

[0086] At least two support devices 100 are arranged along a second direction, which is perpendicular to the first direction;

[0087] All laser processing units 210 are arranged on the side of each processing station B. Each processing station B has two laser processing units 210 on its side, and the two laser processing units 210 corresponding to each processing station B are arranged adjacent to or opposite to each other.

[0088] For an example where each processing station B corresponds to two laser processing units 210, such as... Figure 6 As shown, each carrier device 100 is provided with a laser processing unit 210 on each side along the second direction, and the two laser processing units corresponding to one carrier device 100 are arranged opposite each other; or each carrier device 100 is provided with two laser processing units 210 on the same side along the second direction, and the two laser processing units corresponding to one carrier device 100 are arranged adjacent to each other.

[0089] When any linear drive module of any carrier device 100 drives one of its corresponding carrier platforms 110 to move to its corresponding processing station B, there are two laser processing units 210 located on the side of the carrier platform 110 that has moved to the processing station B.

[0090] Specifically, when the support platform 110 moves to the processing station B, the laser processing unit 210 can be located on the front side of the support platform 110, or above or below the side of the support platform 110. When the laser processing unit 210 is located above or below the side of the support platform 110 moved to the processing station B, it can be that two laser processing units 210 are simultaneously located above or below the side, or one is located above the side and the other is located below the side.

[0091] To minimize damage to the edges of the solar cells during laser processing, preferably, the two laser processing units 210 are located above or below the side of the processing station B, that is, the two laser processing units 210 are simultaneously located above the side of the support platform 110 that has been moved to the processing station B, or simultaneously located below the side of the support platform 110 that has been moved to the processing station B.

[0092] This embodiment provides a laser processing equipment for photovoltaic cells with an alternative layout. It can also achieve mass production of laser processing on the sides of the cells using a linear drive module, a rotary actuator, and a laser processing unit positioned on the side of the cell. This eliminates the side plating issues caused by processing the front or back of the cell, solving the problem of decreased electrical performance due to plating. Furthermore, while ensuring high production capacity, processing the sides of the cells one by one avoids the technical problems of damage to the cells caused by stacking and processing in existing technologies.

[0093] The laser processing equipment in this embodiment has multiple support devices and at least four laser processing units, which can simultaneously process at least two battery cells on the side, thereby further increasing production capacity.

[0094] For the loading and unloading method in this embodiment, the laser processing equipment also includes a parallel and separately arranged loading conveyor line 310 and an unloading conveyor line 320, which transport battery cells in opposite directions along the first direction. The carrier device 100 is located between the loading conveyor line 310 and the unloading conveyor line 320. To load and unload multiple battery cells simultaneously more quickly, an L-shaped rotary conveyor arm can be used. Each end of the L-shaped rotary conveyor arm has the same number of suction cups as the carrier device 100, thus allowing for simultaneous loading and unloading of multiple battery cells. Other forms of conveyor arms are also possible, and will not be described further here.

[0095] For other specific structures of the laser processing apparatus, please refer to the description of the laser processing apparatus in the above embodiments.

[0096] According to another aspect of this application, a laser processing device for photovoltaic cells is also proposed, such as... Figure 8 As shown, it includes a support device 100 and a laser processing device 200.

[0097] The support device 100 includes a linear drive module, two rotary actuators connected to the linear drive module, and two support platforms 110 connected to the two rotary actuators respectively.

[0098] The supporting device 100 includes a first loading station D, a first unloading station E, a processing station B, a second loading station G, and a second unloading station F arranged along a first direction; wherein, in Figure 8 In this embodiment, the first direction is... Figure 8 The Y-axis direction is shown in the diagram. The positions of the first loading station D and the first unloading station E can be interchanged; correspondingly, the positions of the first loading assembly line and the first unloading assembly line will also be interchanged in the following text. The positions of the second loading station G and the second unloading station F can be interchanged; correspondingly, the positions of the second loading assembly line and the second unloading assembly line will also be interchanged in the following text.

[0099] The linear drive module includes two drive components. One drive component is used to drive one of the carrier platforms 110 to reciprocate along a first direction. The other drive component is used to drive its corresponding carrier platform 110 to move between the first loading station D, the first unloading station E, and the processing station B. The other drive component is used to drive its corresponding carrier platform 110 to move between the second loading station G, the second unloading station F, and the processing station B.

[0100] The laser processing device 200 includes two laser processing units 210. Both laser processing units 210 are located on the side of the processing station B, which is the location of the battery cell when processing the side of the battery cell. When the linear drive module drives any one of the support platforms 110 to move to the processing station B, both laser processing units 210 are located on the side of the support platform 110 that has moved to the processing station B.

[0101] Specifically, when the support platform 110 moves to the processing station B, the laser processing unit 210 can be located on the front side of the support platform 110, or above or below the side of the support platform 110. When the laser processing unit 210 is located above or below the side of the support platform 110 moved to the processing station B, it can be that two laser processing units 210 are simultaneously located above or below the side, or one is located above the side and the other is located below the side.

[0102] To minimize damage to the edges of the solar cells during laser processing, preferably, the two laser processing units 210 are located above or below the side of the processing station B, that is, the two laser processing units 210 are simultaneously located above the side of the support platform 110 that has been moved to the processing station B, or simultaneously located below the side of the support platform 110 that has been moved to the processing station B.

[0103] in, Figure 8 In the example, the two laser processing units 210 located at processing station B are arranged adjacently, but they can also be arranged relative to each other, and are not limited to this. Figure 8 As shown. Furthermore, the advantage of having the two laser processing units 210 located above or below the side of the support stage 110 that moves to the processing station B can be referred to the description above.

[0104] This embodiment provides a different layout for laser processing equipment for photovoltaic cells. It also utilizes a linear drive module in conjunction with a rotary actuator and a laser processing unit positioned on the side of the cell to achieve mass production of laser processing on the sides of the cell. This eliminates side plating issues caused by processing the front or back of the cell, solving the problem of degraded electrical performance due to plating. Furthermore, while ensuring high production capacity, processing the sides of the cells one by one avoids the technical problems of damage to the cells caused by stacking cells during side processing in existing technologies.

[0105] The difference from the above embodiment is that the loading station and unloading station are set separately in this embodiment, which can adapt to more application scenarios and improve production capacity.

[0106] Furthermore, the laser processing equipment in this embodiment also includes a first loading line 510, a first unloading line 520, a second loading line 530, and a second unloading line 540, which are separately arranged along a first direction and are parallel to each other. The first loading line 510 and the first unloading line 520 transport battery cells in the opposite direction to the second direction, and the second loading line 530 and the second unloading line 540 transport battery cells in the opposite direction to the second direction. The second direction is perpendicular to the first direction. Figure 8 In this embodiment, the second direction is... Figure 8 The X-axis direction in the diagram.

[0107] The laser processing equipment also includes a first loading and unloading transport module 610, a first unloading transport module 620, a second loading and unloading transport module 640, and a second unloading transport module 630, all of which include a transport drive actuator and at least one suction cup connected to the transport drive actuator; wherein, the transport drive actuator is, for example, a motor or a cylinder.

[0108] The first loading and handling module 610 drives its corresponding suction cup to move back and forth between the first loading line 510 and the first loading station D, for loading the battery cells to be processed onto the carrier platform 110 of the moving first loading station D; the first unloading and handling module 620 drives its corresponding suction cup to move back and forth between the first unloading station E and the first unloading line 520, for moving the processed battery cells from the first unloading station E to the first unloading line 520.

[0109] The second loading and handling module 640 drives its corresponding suction cup to move back and forth between the second loading production line 530 and the second loading station G, for loading the battery cells to be processed onto the carrier table 110 that has moved to the second loading station G; the second unloading and handling module 630 drives its corresponding suction cup to move back and forth between the second unloading station F and the second unloading production line 540, for moving the processed battery cells from the second unloading station F to the second unloading production line 540.

[0110] like Figure 8 As shown in the illustration, in a further embodiment, the first loading and unloading loading and unloading module 610, the first unloading loading and unloading module 620, the second loading and unloading loading and unloading module 630 are all linear handling arms, arranged along the first direction, and the handling drive actuators of the four modules all drive their corresponding suction cups to reciprocate along the second direction. This layout and movement make the loading and unloading of battery cells in this embodiment more convenient.

[0111] In a further embodiment, there are two carrier devices 100 and two laser processing devices 200, each corresponding to the other. The two carrier devices 100 are arranged separately along the second direction, and all carrier tables 110 are located on the sides of all loading and unloading lines along the second direction. Each handling drive actuator is connected to two suction cups, with one suction cup corresponding to the loading or unloading of one carrier table 110. With this arrangement, the two processing stations B can process the sides of two battery cells simultaneously, further improving production capacity. Moreover, this layout is reasonable and saves floor space.

[0112] The various embodiments in this specification are described in a progressive, parallel, or combined manner. Each embodiment focuses on its differences from other embodiments, and similar or identical parts between embodiments can be referred to interchangeably. For the apparatuses disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the descriptions are relatively simple, and relevant parts can be referred to the method section.

[0113] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A laser processing device for photovoltaic cells, comprising a support device and a laser processing device, characterized in that, The support device includes a linear drive module, two rotary actuators connected to the linear drive module, and two support platforms connected to the two rotary actuators respectively. The bearing device has a first loading / unloading station, a processing station, and a second loading / unloading station arranged sequentially along a first direction. The linear drive module drives one of the rotary actuators and its connected bearing platform to reciprocate between the first loading / unloading station and the processing station, and drives the other rotary actuator and its connected bearing platform to reciprocate between the second loading / unloading station and the processing station. When one of the two bearing platforms is located at the first loading / unloading station, the other bearing platform is located at the processing station, or when one of the bearing platforms is located at the processing station, the other bearing platform is located at the second loading / unloading station. The laser processing device includes two laser processing units, both of which are located on the side of the processing station. The processing station is the location of the battery cell when processing the side of the battery cell. When the linear drive module drives any one of the carriers to move to the processing station, both laser processing units are located on the side of the carrier that has moved to the processing station. The two laser processing units simultaneously emit laser beams from the side of the carrier to process the two sides of the battery cell.

2. The laser processing equipment for photovoltaic cells according to claim 1, characterized in that, The two laser processing units are located above or below the side of the processing station. When the linear drive module drives any one of the carriers to move to the processing station, both laser processing units are located above or below the side of the processing station.

3. The laser processing equipment for photovoltaic cells according to claim 1 or 2, characterized in that, The two laser processing units are located on opposite sides of the processing station and on both sides of the support device along a second direction, which is perpendicular to the first direction. When the linear drive module drives any one of the support platforms to move to the processing station, the two laser processing units are located on opposite sides of the support platform that has moved to the processing station. After the two laser processing units have processed the opposite sides of the battery cell, the rotary actuator drives the support platform to rotate 90°, and the two laser processing units process the remaining opposite sides of the battery cell. Alternatively, the two laser processing units are located on two adjacent sides of the processing station. When the linear drive module drives any one of the carriers to move to the processing station, the two laser processing units are located on two adjacent sides of the carrier that has moved to the processing station. After the two laser processing units have processed the two adjacent sides of the battery cell, the rotary actuator drives the carrier to rotate 180°, and the two laser processing units have processed the remaining two adjacent sides of the battery cell.

4. The laser processing equipment for photovoltaic cells according to claim 3, characterized in that, The two laser processing units are located on two adjacent sides of the processing station and below the side of the processing station, wherein the support platform is located on the side of the linear drive module along the second direction, which is perpendicular to the first direction; the two laser processing units are located on the same side of the linear drive module.

5. The laser processing equipment for photovoltaic cells according to claim 1, characterized in that, The laser processing unit includes a laser that emits a laser beam and a laser scanning mechanism that controls the scanning direction of the laser beam. The laser scanning mechanism includes a galvanometer and a field lens. The field lens is fixedly installed, and its center is located on the side of the processing station.

6. The laser processing equipment for photovoltaic cells according to claim 1, characterized in that, The linear drive module is a linear motor module, and the linear motor module has at least one mover. When the linear motor module has two movers, the two support platforms are respectively connected to one of the movers.

7. The laser processing equipment for photovoltaic cells according to claim 1, characterized in that, The laser processing equipment also includes a parallel and separate loading conveyor line and a unloading conveyor line, which transport battery cells in opposite directions along a first direction. The carrying device is located between the loading conveyor line and the unloading conveyor line. The laser processing equipment also includes a first loading and unloading transport module and a second loading and unloading transport module. The first loading and unloading transport module is used to pick up the battery cells to be processed on the loading conveyor line and pick up the processed battery cells that have been moved to the carrier platform of the first loading and unloading station, or to place the battery cells to be processed on the carrier platform that has been moved to the first loading and unloading station and place the processed battery cells on the unloading conveyor line. The second loading and unloading conveying module is used to pick up the battery cells to be processed on the loading conveyor line and pick up the processed battery cells that have been moved to the carrier platform of the second loading and unloading station, or to place the battery cells to be processed on the carrier platform that has been moved to the second loading and unloading station and place the processed battery cells on the unloading conveyor line.

8. The laser processing equipment for photovoltaic cells according to claim 7, characterized in that, Both the first loading and unloading conveying module and the second loading and unloading conveying module are L-shaped rotary robotic arms. The L-shaped rotary robotic arm includes a rotary drive actuator and two mutually perpendicular robotic arms connected to the rotary drive actuator. The ends of the two robotic arms are respectively connected to suction cups that adsorb battery cells downwards. The L-shaped rotary robotic arm can rotate 90° at a time. Alternatively, the first loading and unloading transport module and the second loading and unloading transport module are linear robotic arms. The linear robotic arm includes a linear drive actuator and two spaced-apart suction cups that adsorb battery cells downwards, connected to the linear drive actuator. The linear drive actuator drives the two suction cups to move along a second direction, which is perpendicular to the first direction.

9. The laser processing equipment for photovoltaic cells according to claim 1, characterized in that, The laser processing equipment also includes two positioning devices for adjusting the position of the battery cells; The two positioning devices are respectively set at the first loading and unloading station and the second loading and unloading station. After the carrier moves to the first loading and unloading station or the second loading and unloading station and receives the battery cell, the positioning device clamps and positions the battery cell from the four sides toward the center. Alternatively, the laser processing equipment may further include a feeding and conveying assembly line, which includes two positioning belts respectively corresponding to the first loading and unloading station and the second loading and unloading station. Two positioning devices are respectively set at the locations of the two positioning belts. After the positioning belts receive the battery cells, the positioning devices clamp and position the battery cells from the four sides toward the center. Alternatively, the laser processing equipment may further include two vision positioning devices respectively disposed at the first loading / unloading station and the second loading / unloading station, the vision positioning devices being located above the carrier device; the positioning device is a linear drive device capable of driving the carrier platform to move along a second direction, the second direction being perpendicular to the first direction, the two positioning devices being disposed one-to-one with the two carrier platforms, the positioning device being connected to the corresponding carrier platform and rotary actuator, after the carrier platform moves to the first loading / unloading station or the second loading / unloading station and receives the battery cell, the linear drive module adjusts the position of the battery cell in the first direction, the positioning device adjusts the position of the battery cell in the second direction, and the rotary actuator adjusts the angle of the battery cell in the horizontal plane.

10. A laser processing device for photovoltaic cells, characterized in that, It includes a laser processing module and at least two support devices. The laser processing module includes at least four laser processing units. Each support device includes a linear drive module, two rotary actuators connected to the linear drive module, and two support platforms connected to the two rotary actuators respectively. Each of the aforementioned carrier devices has a first loading / unloading station, a processing station, and a second loading / unloading station arranged sequentially along a first direction. The linear drive module drives one of the rotary actuators and its connected carrier platform to reciprocate between the first loading / unloading station and the processing station, and drives the other rotary actuator and its connected carrier platform to reciprocate between the second loading / unloading station and the processing station. When one of the two carrier platforms is located at the first loading / unloading station, the other carrier platform is located at the processing station, or when one of the carrier platforms is located at the processing station, the other carrier platform is located at the second loading / unloading station. At least two of the aforementioned support devices are arranged along a second direction, which is perpendicular to the first direction; All of the laser processing units are arranged on the side of each of the processing stations, wherein two laser processing units are arranged on the side of each processing station, and are arranged adjacent to or opposite to the two laser processing units corresponding to each processing station. When the linear drive module of any of the aforementioned carrier devices drives one of its corresponding carrier platforms to move to its corresponding processing station, there are two laser processing units located on the side of the carrier platform that has moved to the processing station.

11. A laser processing device for photovoltaic cells, comprising a support device and a laser processing device, characterized in that, The support device includes a linear drive module, two rotary actuators connected to the linear drive module, and two support platforms connected to the two rotary actuators respectively. The supporting device includes a first loading station, a first unloading station, a processing station, a second loading station, and a second unloading station arranged along a first direction; The linear drive module includes two drive components. One drive component is used to drive one of the carrier platforms to reciprocate along a first direction. The other drive component is used to drive its corresponding carrier platform to move between a first loading station, a first unloading station, and a processing station. The other drive component is used to drive its corresponding carrier platform to move between a second loading station, a second unloading station, and a processing station. The laser processing device includes two laser processing units, both of which are located on the side of the processing station. The processing station is the location of the battery cell when processing its side. When the linear drive module drives any one of the carriers to move to the processing station, both laser processing units are located on the side of the carrier that has moved to the processing station.

12. The laser processing equipment for photovoltaic cells according to claim 11, characterized in that, The laser processing equipment further includes a first feeding line, a first unloading line, a second feeding line, and a second unloading line, which are arranged separately along a first direction and are parallel to each other. The first feeding line and the first unloading line transport battery cells in the opposite direction to the second direction, and the second feeding line and the second unloading line transport battery cells in the opposite direction to the second direction. The second direction is perpendicular to the first direction. The laser processing equipment also includes a first loading and unloading module, a first unloading and unloading module, a second loading and unloading module, and a second unloading and unloading module, all of which include a handling drive actuator and at least one suction cup connected to the handling drive actuator; The first loading and handling module drives its corresponding suction cup to move back and forth between the first loading assembly line and the first loading station, and the first unloading and handling module drives its corresponding suction cup to move back and forth between the first unloading station and the first unloading assembly line. The second loading and handling module drives its corresponding suction cup to move back and forth between the second loading production line and the second loading station, and the second unloading and handling module drives its corresponding suction cup to move back and forth between the second unloading station and the second unloading production line.

13. The laser processing equipment for photovoltaic cells according to claim 12, characterized in that, The first loading and unloading module, the first unloading module, the second loading and unloading module, and the second unloading module are all linear handling arms, arranged along the first direction, and the handling drive actuators of the four modules drive their corresponding suction cups to reciprocate along the second direction.

14. The laser processing equipment for photovoltaic cells according to claim 12, characterized in that, The number of the carrier device and the laser processing device are both two and correspond one-to-one, and the two carrier devices are set separately along the second direction. All the carrier platforms are located on the side of all loading and unloading lines along the second direction. Each of the aforementioned transport drive actuators is connected to two suction cups, with each suction cup corresponding to the loading or unloading of a carrier platform.

15. The laser processing equipment for photovoltaic cells according to claim 10 or 11, characterized in that, The laser processing unit is located above or below the side of the processing station. When the linear drive module drives any one of the carriers to move to the processing station, both laser processing units are located above or below the side of the carrier that has moved to the processing station.

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