Laser processing equipment and laser processing system for photovoltaic cell

Abstract

The utility model provides laser processing equipment and a laser processing system for a photovoltaic cell, and the equipment comprises a feeding conveying assembly line and a discharging conveying assembly line which are parallel and are separately arranged, and the feeding conveying assembly line and the discharging conveying assembly line extend in a first direction; the at least two processing hosts are located between the feeding conveying assembly line and the discharging conveying assembly line and are sequentially arranged in the first direction; the first main machine is provided with two feeding and discharging stations arranged side by side and two machining stations arranged side by side. The second main machine is provided with at least one feeding and discharging station and at least one machining station. And the at least two rotary carrying modules are arranged above the rotary table module, the number of the rotary carrying modules is the same as that of the machining main machines, and each rotary carrying module comprises a rotary driving execution piece, an L-shaped rotary arm connected to the rotary driving execution piece and suction cup mechanisms connected to the two ends of the rotary arm. While the productivity is improved, the occupied space of the equipment in the direction perpendicular to the first direction is small, and the productivity of the machining main machine and the matching degree of the feeding and discharging conveying device are further optimized.

Description

Technical Field

[0001] The present application belongs to the field of photovoltaics, and specifically, relates to a laser processing device and a laser processing system for photovoltaic cells. Background Art

[0002] At present, laser processing technology has been widely used in the photovoltaic field. Conventional photovoltaic cell laser processing equipment generally includes a processing host, a loading and conveying device, and a unloading and conveying device. Among them, the processing host includes a processing table for carrying the cells to be processed and a laser processing module for processing the cells. The loading and conveying device is used to convey the cells so as to load the cells to be processed, and the unloading and conveying device is used to unload the processed cells.

[0003] With the continuous development of the photovoltaic field, the technology of laser processing of solar cells has become more and more sophisticated, which has put forward higher requirements on the production capacity and spatial layout of laser processing equipment. However, the existing laser processing equipment cannot meet them, and the coordination between the production capacity of the processing host and the transmission speed of the loading and unloading conveying device in the existing technology can be further optimized. Utility Model Content

[0004] In order to solve the problems in the prior art, in view of this, the present application provides a laser processing device and a laser processing system for a photovoltaic cell, wherein the laser processing device for a photovoltaic cell comprises:

[0005] A loading conveying line and a unloading conveying line are arranged in parallel and separately, both extending along a first direction to convey the battery cells along the first direction;

[0006] At least two processing hosts are located between the loading and conveying line and the unloading and conveying line and are arranged in sequence along the first direction, the processing hosts include a turntable module and a laser processing module located above the turntable module, the turntable module includes a rotary drive mechanism and a plurality of bearing platforms connected to the rotary drive mechanism; wherein, among the at least two processing hosts, the processing host close to the entrance end of the loading and conveying line is a first host, and the other is a second host, the first host has two loading and unloading stations arranged side by side and two processing stations arranged side by side; the number of the bearing platforms in the first host is four, the two bearing platforms arranged side by side in the first host are a bearing group, and the two bearing groups are separately arranged along the first direction, the rotary drive mechanism of the first host drives the two bearing groups to rotate 180° each time, passing through the two loading and unloading stations and the two processing stations respectively; the second host has at least one loading and unloading station and at least one processing station, and the rotary drive mechanism of the second host drives the bearing platform to pass through the loading and unloading station and the processing station;

[0007] At least two rotating transfer modules are arranged above the turntable module and the same in number as the processing main machine, the rotating transfer modules include a rotating drive actuator, an L-shaped rotating arm connected to the rotating drive actuator, and a suction cup mechanism connected to both ends of the rotating arm; wherein the suction cup mechanism corresponding to the first main machine includes two suction cups arranged side by side, and the suction cup mechanism corresponding to the second main machine includes at least one suction cup, and the rotating drive actuator drives the suction cups at both ends of the corresponding processing main machines to be respectively located above the loading and conveying line and the loading and unloading stations or respectively located above the loading and unloading stations and the unloading and conveying line.

[0008] Preferably, the laser processing module in the first host includes two laser processing units, which are respectively located at two processing stations in the first host, and the laser processing module in the second host includes at least one laser processing unit. The number of laser processing units in the second host is the same as the number of processing stations of the second host. The laser processing unit includes a laser for emitting a laser beam and a laser scanning mechanism for controlling the scanning direction of the laser beam.

[0009] Preferably, the second host has two loading and unloading stations arranged side by side and two processing stations arranged side by side, the number of the bearing platforms in the second host is four, the two bearing platforms arranged side by side in the second host form a bearing group, and the two bearing groups are separately arranged along the first direction, and the rotation drive mechanism of the second host drives the two bearing groups to rotate 180° each time, passing through the two loading and unloading stations and the two processing stations respectively;

[0010] The suction cup mechanism corresponding to the second host includes two suction cups arranged side by side.

[0011] Preferably, the number of loading and unloading stations of the second host is one, the number of the supporting platforms in the second host is four, and they are arranged at 90° intervals; the number of suction cups in the suction cup mechanism corresponding to the second host is one

[0012] Preferably, the bottom of the carrying platform of the first host is higher than the loading and unloading conveying line;

[0013] The rotating transport module corresponding to the first host also includes a lifting drive mechanism. The L-shaped rotating arm in the rotating transport module corresponding to the first host is divided into a first moving arm and a second moving arm. The L-shaped rotating arm is connected to the lifting drive mechanism. When the lifting drive mechanism drives the suction cup mechanism at the end of the first moving arm to be located above the loading and conveying assembly line and the suction cup mechanism at the end of the second moving arm to be located above the loading and unloading station, the first moving arm is lower than the second moving arm; when the lifting drive mechanism drives the suction cup mechanism at the end of the first moving arm to be located above the loading and unloading station and the suction cup mechanism at the end of the second moving arm to be located above the unloading and conveying assembly line, the first moving arm is higher than the second moving arm.

[0014] Preferably, the loading and conveying line comprises a plurality of loading and conveying units having the same number as the processing host, each of the loading and conveying units comprises a first conveying section and a second conveying section, the second conveying section is arranged close to the loading and unloading station, the first conveying section is arranged at the front end of the second conveying section, and the conveying direction is the same;

[0015] The unloading and conveying line includes a plurality of unloading and conveying units having the same number as the processing host, each of the unloading and conveying units includes a third conveying section and a fourth conveying section, the fourth conveying section is arranged close to the loading and unloading station, and the third conveying section is arranged at the rear end of the fourth conveying section, and the conveying direction is the same.

[0016] Preferably, the loading conveying line and the unloading conveying line are both belt conveyor lines, and the first conveying section, the second conveying section, the third conveying section, and the fourth conveying section are all independently driven and controlled and each includes one or more belt conveyor lines that are close to each other end to end.

[0017] Preferably, the second conveying section and the fourth conveying section each include two independently driven and controlled belt conveyor lines that are close to each other end to end.

[0018] Preferably, the conveying direction of the loading conveying line is opposite to that of the unloading conveying line.

[0019] As another aspect of the present application, there is also provided a laser processing device for photovoltaic cells, comprising:

[0020] A loading conveying line and a unloading conveying line are arranged in parallel and separately, both extending along a first direction to convey the battery cells along the first direction;

[0021] At least two processing hosts are located between the loading and unloading conveying line and arranged in sequence along the first direction, the processing hosts include a turntable module and a laser processing module located above the turntable module, the turntable module includes a rotary drive mechanism and a plurality of bearing platforms connected to the rotary drive mechanism; wherein, among the at least two processing hosts, the processing host close to the entrance end of the loading and unloading conveying line is the first host, and the other is the second host; the number of the bearing platforms in the first host is four, and they are arranged at intervals of 90°, the first host has one loading and unloading station and at least one processing station, and the rotary drive mechanism of the first host drives the bearing platform to pass through the loading and unloading station and the processing station; the second host has two loading and unloading stations arranged side by side and two processing stations arranged side by side, the number of the bearing platforms in the second host is four, the two bearing platforms arranged side by side in the second host are a bearing group, and the two bearing groups are arranged separately along the first direction, and the rotary drive mechanism of the second host drives the two bearing groups to rotate 180° each time, passing through the two loading and unloading stations and the two processing stations respectively;

[0022] At least two rotating transfer modules are arranged above the turntable module and the same in number as the processing main machine, and the rotating transfer modules include a rotating drive actuator, an L-shaped rotating arm connected to the rotating drive actuator, and a suction cup mechanism connected to both ends of the rotating arm; wherein the suction cup mechanism corresponding to the first main machine includes a suction cup, and the suction cup mechanism corresponding to the second main machine includes two suction cups arranged side by side, and the rotating drive actuator drives the suction cups at both ends of the corresponding processing main machines to be respectively located above the loading and conveying line and the loading and unloading stations or respectively located above the loading and unloading stations and the unloading and conveying line.

[0023] As another aspect of the present application, a laser processing system is further provided, comprising two laser processing devices for photovoltaic cells according to any one of the above items, which are separately arranged along a second direction, wherein the second direction is perpendicular to the first direction.

[0024] The present application arranges at least two processing hosts in sequence along the first direction between the parallel loading and unloading conveying lines, and shares a set of loading and unloading conveying lines, thereby increasing the production capacity and reducing the space occupied by the equipment in the direction perpendicular to the first direction, so that the coordination between the production capacity of the processing host and the transmission speed of the loading and unloading conveying lines is further optimized. In addition, since the equipment adopts an L-shaped rotating arm, the suction cups at both ends of the L-shaped rotating arm can work at the same time, that is, loading and unloading at the same time, thereby further improving the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related technologies, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0026] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not used to limit the conditions under which this application can be implemented, and therefore have no substantive technical significance. Any structural modification, change in proportion or adjustment of size, without affecting the effects and purposes that can be achieved by this application, should still fall within the scope of the technical contents disclosed in this application.

[0027] Figure 1 A schematic structural diagram of a laser processing device for photovoltaic cells according to an embodiment of the present application.

[0028] Figure 2 A schematic structural diagram of a laser processing device for photovoltaic cells according to another embodiment of the present application.

[0029] Figure 3 A schematic structural diagram of a laser processing device for photovoltaic cells according to another embodiment of the present application.

[0030] Figure 4 A schematic structural diagram of a laser processing system according to an embodiment of the present application. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the embodiments in the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0032] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0033] like Figure 1 As shown, the present application provides a laser processing device for photovoltaic cells, comprising:

[0034] A loading and conveying line 100 and a unloading and conveying line 200 are arranged in parallel and separately, both extending along a first direction to convey the battery cells along the first direction;

[0035] At least two processing hosts are located between the loading and conveying line 100 and the unloading and conveying line 200 and are arranged in sequence along a first direction.

[0036] The first direction is, for example, Figure 1 In the X-axis direction shown, the loading conveyor line 100 and the unloading conveyor line 200 are both conveyor belts. The loading conveyor line 100 is used to convey the battery cells along a first direction to provide unprocessed battery cells to the processing host, and the unloading conveyor line 200 is used to convey the battery cells along the first direction to transport the processed battery cells away. For ease of control, both can also be configured to include multiple sections of independently driven conveyor belts according to actual needs. It should be noted that although the loading conveyor line 100 and the unloading conveyor line 200 both convey the battery cells along the first direction, the conveying directions are opposite, that is, one of them conveys the battery cells along the positive direction of the X-axis, and the other conveys the battery cells along the negative direction of the X-axis. In addition, Figure 1 The positions of the loading conveying line 100 and the unloading conveying line 200 in the example shown can also be interchanged.

[0037] The processing host includes a turntable module 310 and a laser processing module 320 located above the turntable module 310. The turntable module 310 includes a rotation drive mechanism 321 and a plurality of carriers 322 connected to the rotation drive mechanism 321, and the carriers 322 are used to carry battery cells. Specifically, the turntable module 310 is a common structure, and the rotation drive mechanism 321 generally includes a rotation drive actuator and a horizontally and symmetrically arranged support frame, wherein the rotation drive actuator is, for example, a DD motor, and its output shaft is connected below the center of the support frame. The plurality of carriers 322 are equidistant from the center of the support frame and the plurality of carriers 322 are connected to the periphery of the support frame, thereby the rotation drive actuator drives the plurality of carriers 322 to rotate synchronously.

[0038] Among them, the processing host close to the entrance end of the loading and conveying line 100 of at least two processing hosts is the first host 1, and the other is the second host 2. The first host 1 has two loading and unloading stations A arranged side by side and two processing stations B arranged side by side. The number of the bearing platforms 322 in the first host 1 is four. The two bearing platforms 322 arranged side by side in the first host 1 are a bearing group, and the two bearing groups are separately arranged along the first direction. The rotation drive mechanism 321 of the first host 1 drives the two bearing groups to rotate 180° each time, passing through the two loading and unloading stations A and the two processing stations B respectively, from Figure 1It can be seen that at this time, the support frame is in an "I-shaped" shape, and the two bearing platforms 322 located on the same side of the support frame are a group. One group of bearing groups moves to two loading and unloading stations A or two processing stations B at the same time, and one bearing platform 322 corresponds to one station; the second host 2 has at least one loading and unloading station A and at least one processing station B, and the rotation drive mechanism 321 of the second host 2 drives the bearing platform 322 to pass through the loading and unloading station A and the processing station B. For the embodiment of the present application, the second host 2 can be Figure 1 The same structure as the first host 1 can also be Figure 2 The structure shown is different from the first main machine 1, and is described in detail below. In summary, since at least two processing main machines are included, more laser processing modules 320 are provided, thereby improving processing efficiency.

[0039] Furthermore, the laser processing module 320 in the first host 1 includes two laser processing units, which are respectively located at two processing stations B in the first host 1. The laser processing module 320 in the second host 2 includes at least one laser processing unit. The number of laser processing units in the second host 2 is the same as the number of processing stations B in the second host 2. The laser processing unit includes a laser for emitting a laser beam and a laser scanning mechanism for controlling the scanning direction of the laser beam. The laser scanning mechanism can be a combination of a scanning galvanometer and a field mirror. Of course, in order to meet other requirements, the laser processing unit can also include other optical devices. That is to say, the laser processing equipment for photovoltaic cells of the present application includes at least 3 laser processing units (3 lasers), and each processing station B corresponds to a laser processing unit, which can improve the production capacity while controlling the laser processing process more concisely.

[0040] The laser processing equipment for photovoltaic cells also includes at least two rotating transport modules 400 arranged above the turntable module 310 and the same number as the processing host. The rotating transport module 400 includes a rotating drive actuator (not numbered in the figure), an L-shaped rotating arm 410 connected to the rotating drive actuator, and a suction cup mechanism connected to both ends of the rotating arm 410; wherein the suction cup mechanism corresponding to the first host 1 includes two suction cups arranged side by side. Since the first host 1 also includes two loading and unloading stations A and two processing stations B, the two suction cups simultaneously transport two battery cells, which can enable the two battery cells to be processed at the same time, thereby improving work efficiency; the suction cup mechanism corresponding to the second host 2 includes at least one suction cup. The number of suction cups in the suction cup mechanism of the second host 2 can be determined according to the number of loading and unloading stations of the second host. For example, when it is Figure 1 The structure may include two suction cups. Figure 2The structure can be a suction cup. The rotary drive actuator drives the suction cups at both ends of the corresponding processing host to be located above the loading and conveying line 100 and the loading and unloading station A, or respectively located above the loading and unloading station A and the unloading and conveying line 200. Specifically, the rotary drive actuator is a motor or a cylinder. By setting the rotating arm 410 to an L shape, suction cup structures can be set at both ends, thereby realizing simultaneous loading and unloading. During specific operation, when one of the suction cups at both ends is located above the loading and conveying line 100 and the other is located above the loading and unloading station A, the suction cups at both ends respectively obtain the battery cells to be processed on the loading and conveying line 100 and obtain the processed battery cells, and then the rotating driving actuator drives the rotating arm 410 to rotate. At this time, one of the suction cups at both ends is located above the loading and unloading station A, and the other is located above the unloading and conveying line 200. At this time, the suction cups at both ends respectively place the battery cells to be processed on the supporting platform 322 corresponding to the loading and unloading station A and place the processed battery cells on the unloading and conveying line 200, and then the rotating arm 410 rotates again to repeat the above process.

[0041] The present application arranges at least two processing hosts in sequence along the first direction between the parallel loading and unloading conveying lines, and shares a set of loading and unloading conveying lines, thereby increasing the production capacity and reducing the space occupied by the equipment in the direction perpendicular to the first direction, so that the coordination between the production capacity of the processing host and the transmission speed of the loading and unloading conveying lines is further optimized. In addition, since the equipment adopts an L-shaped rotating arm, the suction cups at both ends of the L-shaped rotating arm can work at the same time, that is, loading and unloading at the same time, thereby further improving the processing efficiency.

[0042] As one of the embodiments, Figure 1 As shown, the structure of the second host 2 is basically the same as that of the first host 1. The second host 2 also has two loading and unloading stations A arranged side by side and two processing stations B arranged side by side. The number of the bearing platforms 322 in the second host 2 is four. The two bearing platforms 322 arranged side by side in the second host 2 are a bearing group, and the two bearing groups 322 are separately arranged along the first direction. The rotation drive mechanism 321 of the second host 2 drives the two bearing groups to rotate 180° each time, passing through the two loading and unloading stations A and the two processing stations B respectively; the corresponding suction cup mechanism of the second host 2 also includes two suction cups arranged side by side. Correspondingly, the laser processing module 320 in the second host 2 under this embodiment includes two laser processing units, which are respectively located in the two processing stations B in the second host 2, that is, at this time, the equipment has four laser processing units (lasers) that can work simultaneously, further improving work efficiency.

[0043] As another embodiment, the second host 2 is different from the first host 1. The second host 2 has one loading and unloading station A. At this time, the number of processing stations B is not limited to one, and can be one or two. The number of carriers 322 in the second host 2 is four, and the four carriers 322 are arranged at 90° intervals; at this time, the support frame of the turntable module 310 in the second host 2 under this embodiment can be considered to be a cross, and the rotation drive mechanism 321 of the second host 2 drives each carrier 322 to rotate 90° at a time. Considering that there is only one loading and unloading station A, the number of suction cups in the suction cup mechanism corresponding to the second host 2 can be one, that is, one battery cell is loaded at a time. Correspondingly, the laser processing module 320 in the second host 2 under this embodiment includes at least one laser processing unit, that is, the equipment has at least three laser processing units (lasers) that can work simultaneously. For example, Figure 2 As shown, the number of processing station B is one, and the equipment has three laser processing units (lasers) that can work simultaneously.

[0044] As another embodiment, considering that the distance between the loading conveying line 100 and the unloading conveying line 200 is not enough, the bottom of the support platform 322 of the first main machine 1 is set higher than the loading conveying line 100 and the unloading conveying line 200. Therefore, during the rotation of multiple support platforms 322, even if the distance between the loading conveying line 100 and the unloading conveying line 200 is small, the support platforms 322 will not collide with the loading conveying line 100 and the unloading conveying line 200.

[0045] Taking into account that the loading and conveying line 100, the unloading and conveying line 200 and the carrying platform 322 are not at the same horizontal height at this time, the rotating transport module 400 corresponding to the first main machine 1 also includes a lifting drive mechanism (not shown in the figure), and the L-shaped rotating arm 410 corresponding to the first main machine 1 is connected to the lifting drive mechanism. The L-shaped rotating arm 410 in the rotating transport module 400 corresponding to the first main machine 1 is divided into a first moving arm and a second moving arm. When the lifting drive mechanism drives the suction cup mechanism at the end of the first moving arm to be located above the loading and conveying line 100 and the suction cup mechanism at the end of the second moving arm is located above the loading and unloading station A, the first moving arm is lower than the second moving arm; when the lifting drive mechanism drives the suction cup mechanism at the end of the first moving arm to be located above the loading and unloading station A and the suction cup mechanism at the end of the second moving arm is located above the unloading and conveying line 200, the first moving arm is higher than the second moving arm. Among them, whether the first moving arm is lower than the second moving arm, or the first moving arm is higher than the second moving arm, it mainly refers to the height of the suction cups at the ends of the two moving arms. Thus, by switching the height position of the suction cups, the suction cups can better absorb or release the battery cells when the loading and conveying line 100, the unloading and conveying line 200 and the supporting platform 322 are not at the same horizontal height. Furthermore, the lifting drive mechanism can be a driving actuator that drives two moving arms at the same time. In this case, the above working process is realized through the mechanical mechanism design. Alternatively, for a simpler structure, the lifting drive mechanism includes two driving actuators, each of which drives a moving arm to move up and down, so as to realize the height position switching at different workstations. Furthermore, the driving actuator in the lifting drive mechanism can be a motor or a cylinder. As for the connection method between the lifting drive mechanism and the L-shaped rotating arm 410, there can be many ways, as long as the above functions can be realized. The rotating transport module 400 of this structure can realize loading and unloading of battery cells when the loading and unloading conveying line 100 and the unloading and unloading conveying line 200 are not at the same level as the supporting platform 322, which can further save space in the direction perpendicular to the first direction.

[0046] As another example, Figure 1 As shown, the loading and conveying line 100 includes a plurality of loading and conveying units having the same number as the processing host, each of which includes a first conveying section 110 and a second conveying section 120, the second conveying section 120 being arranged near the loading and unloading station A, the first conveying section 110 being arranged at the front end of the second conveying section 120, and the conveying directions are the same, for example Figure 1As shown, the first conveying section 110 is arranged at the front end of the second conveying section 120, which means that when the battery cell is conveyed on the loading conveying line 100, it first passes through the first conveying section 110 and then passes through the second conveying section 120; the unloading conveying line 200 includes a plurality of unloading conveying units with the same number as the processing host, each unloading conveying unit includes a third conveying section 210 and a fourth conveying section 220, the fourth conveying section 220 is arranged near the loading and unloading station A, and the third conveying section 210 is arranged at the rear end of the fourth conveying section 220, and the transmission direction is the same, that is, when the battery cell is conveyed on the unloading conveying line 200, the battery cell first passes through the fourth conveying section 220 and then passes through the third conveying section 210. One processing host corresponds to one loading conveying unit and one unloading conveying unit, and each loading conveying unit and each unloading conveying unit are divided into two conveying sections, thereby better controlling the transmission and stopping of the battery cell, so as to better realize the loading and unloading of the battery cell.

[0047] As another embodiment, the loading conveying line 100 and the unloading conveying line 200 are both belt conveying lines, and the first conveying section 110, the second conveying section 120, the third conveying section 320, and the fourth conveying section 220 are all independently driven and controlled and each includes one or more belt conveying lines that are close to each other. Similarly, such a setting can better control the transmission and stop of the battery cells, so as to better realize the loading and unloading of the battery cells.

[0048] As another embodiment, when a processing host has two loading and unloading stations, for example Figure 1 In the example shown, the second conveyor section 120 and the fourth conveyor section 220 each include two independently driven and controlled belt conveyor lines that are close to each other end to end, so that the two battery cells can each be more accurately stopped on the belt conveyor lines corresponding to the two battery cells in the second conveyor section 120 and the fourth conveyor section 220, so as to improve the position accuracy of loading and unloading the two battery cells at the same time. In addition, it can also prevent the blockage of the battery cells during loading and unloading.

[0049] As another example, Figure 1 and Figure 2 As shown, the transmission directions of the loading conveying line 100 and the unloading conveying line 200 are opposite to each other, so as to better realize the equipment layout and facilitate equipment maintenance.

[0050] In addition, the present application also proposes an embodiment of a laser processing device for photovoltaic cells. The difference between this embodiment and the above embodiment is that the processing main machine among at least two processing main machines, which is close to the entrance end of the loading and conveying line, has one loading and unloading station A, at least one processing station B, four support platforms 322, and the four support platforms 322 are arranged at 90° intervals. The rotating drive mechanism 321 drives each support platform 322 to rotate 90° at a time, and the number of suction cups in the suction cup mechanism can be one, that is, one battery cell is loaded at a time.

[0051] Specifically, Figure 3 As shown, the laser processing equipment for photovoltaic cells of this embodiment includes: a parallel and separately arranged loading and conveying line 100 and a unloading and conveying line 200, both of which are extended along the first direction to convey the battery sheet along the first direction; at least two processing hosts located between the loading and conveying line 100 and the unloading and conveying line 200 and arranged in sequence along the first direction, the processing host includes a turntable module 310 and a laser processing module 320 located above the turntable module 310, the turntable module 310 includes a rotary drive mechanism 321 and a plurality of bearing platforms 322 connected to the rotary drive mechanism 321; wherein, among the at least two processing hosts, the processing host close to the entrance end of the loading and conveying line 100 is the first host 1, and the other is the second host 2; the number of the bearing platforms 322 in the first host 1 is four, and they are arranged at an interval of 90°, the first host 1 has a loading and unloading station A and at least one processing station B, the rotary drive mechanism 321 of the first host 1 drives the bearing platform 322 to pass through the loading and unloading station A and the processing station B; the second The main machine 2 has two loading and unloading stations A arranged side by side and two processing stations B arranged side by side. The number of the support platforms 322 in the second main machine 2 is four. The two support platforms 322 arranged side by side in the second main machine 2 are a support group, and the two support groups are separately arranged along the first direction. The rotary drive mechanism 321 of the second main machine 2 drives the two support groups to rotate 180° each time, passing through the two loading and unloading stations A and the two processing stations B respectively; at least two rotary transport modules 400 are arranged above the turntable module 310 and the same number as the processing main machine, and the rotary transport module 400 includes a rotary drive actuator, an L-shaped rotary arm 410 connected to the rotary drive actuator, and a suction cup mechanism connected to both ends of the rotary arm; wherein, the suction cup mechanism corresponding to the first main machine includes a suction cup, and the suction cup mechanism corresponding to the second main machine includes two suction cups arranged side by side, and the rotary drive actuator drives the suction cups at both ends of the corresponding processing main machines to be located respectively above the loading and unloading stations or respectively above the loading and unloading stations and the unloading and unloading conveying line.

[0052] The laser processing equipment of this embodiment can also improve the production capacity while reducing the space occupied by the equipment in the direction perpendicular to the first direction, so that the matching degree between the production capacity of the processing host and the transmission speed of the loading and unloading conveying line is further optimized. Other structures can refer to the description of the above embodiment.

[0053] In addition, the present application also proposes a laser processing system, comprising two laser processing devices for photovoltaic cells according to any of the above embodiments, which are arranged separately along a second direction, and the second direction is perpendicular to the first direction. Since the laser processing system includes two laser processing devices for photovoltaic cells, its production capacity is higher. One example is Figure 4 As shown, the first host 1 and the second host 2 are basically the same, respectively having two loading and unloading stations A and two processing stations B. Further, if the distance between the loading and unloading conveying line 100 and the unloading and unloading conveying line 200 is small, the bottom of the supporting platform 322 of the first host 1 can also be set higher than the loading and unloading conveying line 100 and the unloading and unloading conveying line 200.

[0054] In this specification, each embodiment is described in a progressive, parallel, or progressive and parallel manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0055] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be 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 the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A laser processing device for photovoltaic cells, characterized in that: include: A loading conveying line and a unloading conveying line are arranged in parallel and separately, both extending along a first direction to convey the battery cells along the first direction; At least two processing hosts are located between the loading and conveying line and the unloading and conveying line and are arranged in sequence along the first direction, the processing hosts include a turntable module and a laser processing module located above the turntable module, the turntable module includes a rotary drive mechanism and a plurality of bearing platforms connected to the rotary drive mechanism; wherein, among the at least two processing hosts, the processing host close to the entrance end of the loading and conveying line is the first host, and the other is the second host; the first host has two loading and unloading stations arranged side by side and two processing stations arranged side by side, the number of the bearing platforms in the first host is four, the two bearing platforms arranged side by side in the first host are a bearing group, and the two bearing groups are separately arranged along the first direction, the rotary drive mechanism of the first host drives the two bearing groups to rotate 180° each time, passing through the two loading and unloading stations and the two processing stations respectively; the second host has at least one loading and unloading station and at least one processing station, and the rotary drive mechanism of the second host drives the bearing platform to pass through the loading and unloading station and the processing station; At least two rotating transfer modules are arranged above the turntable module and the same in number as the processing main machine, the rotating transfer modules include a rotating drive actuator, an L-shaped rotating arm connected to the rotating drive actuator, and a suction cup mechanism connected to both ends of the rotating arm; wherein the suction cup mechanism corresponding to the first main machine includes two suction cups arranged side by side, and the suction cup mechanism corresponding to the second main machine includes at least one suction cup, and the rotating drive actuator drives the suction cups at both ends of the corresponding processing main machines to be respectively located above the loading and conveying line and the loading and unloading stations or respectively located above the loading and unloading stations and the unloading and conveying line.

2. The laser processing equipment for photovoltaic cells according to claim 1, characterized in that: The laser processing module in the first host includes two laser processing units, which are respectively located at two processing stations in the first host. The laser processing module in the second host includes at least one laser processing unit. The number of laser processing units in the second host is the same as the number of processing stations of the second host. The laser processing unit includes a laser for emitting a laser beam and a laser scanning mechanism for controlling the scanning direction of the laser beam.

3. The laser processing equipment for photovoltaic cells according to claim 1, characterized in that: The second host has two loading and unloading stations arranged side by side and two processing stations arranged side by side. The number of the bearing platforms in the second host is four. The two bearing platforms arranged side by side in the second host form a bearing group, and the two bearing groups are separately arranged along the first direction. The rotation drive mechanism of the second host drives the two bearing groups to rotate 180° each time, passing through the two loading and unloading stations and the two processing stations respectively. The suction cup mechanism corresponding to the second host includes two suction cups arranged side by side.

4. The laser processing equipment for photovoltaic cells according to claim 1, characterized in that: The second host has one loading and unloading station, the second host has four supporting platforms which are arranged at 90° intervals, and the corresponding number of suction cups in the suction cup mechanism of the second host is one.

5. The laser processing equipment for photovoltaic cells according to any one of claims 1 to 4, characterized in that: The bottom of the carrying platform of the first host is higher than the loading and unloading conveying line; The rotating transport module corresponding to the first host also includes a lifting drive mechanism. The L-shaped rotating arm in the rotating transport module corresponding to the first host is divided into a first moving arm and a second moving arm. The L-shaped rotating arm is connected to the lifting drive mechanism. When the lifting drive mechanism drives the suction cup mechanism at the end of the first moving arm to be located above the loading and conveying assembly line and the suction cup mechanism at the end of the second moving arm to be located above the loading and unloading station, the first moving arm is lower than the second moving arm; when the lifting drive mechanism drives the suction cup mechanism at the end of the first moving arm to be located above the loading and unloading station and the suction cup mechanism at the end of the second moving arm to be located above the unloading and conveying assembly line, the first moving arm is higher than the second moving arm.

6. The laser processing equipment for photovoltaic cells according to claim 1, characterized in that: The loading and conveying line comprises a plurality of loading and conveying units having the same number as the processing host, each of the loading and conveying units comprises a first conveying section and a second conveying section, the second conveying section is arranged close to the loading and unloading station, the first conveying section is arranged at the front end of the second conveying section, and the conveying directions are the same; The unloading and conveying line includes a plurality of unloading and conveying units having the same number as the processing host, each of the unloading and conveying units includes a third conveying section and a fourth conveying section, the fourth conveying section is arranged close to the loading and unloading station, and the third conveying section is arranged at the rear end of the fourth conveying section, and the conveying direction is the same.

7. The laser processing equipment for photovoltaic cells according to claim 6, characterized in that: The loading conveying line and the unloading conveying line are both belt conveying lines, and the first conveying section, the second conveying section, the third conveying section, and the fourth conveying section are all independently driven and controlled and each includes one or more belt conveying lines that are close to each other end to end.

8. The laser processing equipment for photovoltaic cells according to claim 7, characterized in that: The second conveying section and the fourth conveying section each include two independently driven and controlled belt conveyor lines that are close to each other end to end.

9. The laser processing equipment for photovoltaic cells according to claim 1, characterized in that: The conveying direction of the loading conveying line is opposite to that of the unloading conveying line.

10. A laser processing device for photovoltaic cells, characterized in that: include: A loading conveying line and a unloading conveying line are arranged in parallel and separately, both extending along a first direction to convey the battery cells along the first direction; At least two processing hosts are located between the loading and unloading conveying line and arranged in sequence along the first direction, the processing hosts include a turntable module and a laser processing module located above the turntable module, the turntable module includes a rotary drive mechanism and a plurality of bearing platforms connected to the rotary drive mechanism; wherein, among the at least two processing hosts, the processing host close to the entrance end of the loading and unloading conveying line is the first host, and the other is the second host; the number of the bearing platforms in the first host is four, and they are arranged at intervals of 90°, the first host has one loading and unloading station and at least one processing station, and the rotary drive mechanism of the first host drives the bearing platform to pass through the loading and unloading station and the processing station; the second host has two loading and unloading stations arranged side by side and two processing stations arranged side by side, the number of the bearing platforms in the second host is four, the two bearing platforms arranged side by side in the second host are a bearing group, and the two bearing groups are arranged separately along the first direction, and the rotary drive mechanism of the second host drives the two bearing groups to rotate 180° each time, passing through the two loading and unloading stations and the two processing stations respectively; At least two rotating transfer modules are arranged above the turntable module and the same in number as the processing main machine, and the rotating transfer modules include a rotating drive actuator, an L-shaped rotating arm connected to the rotating drive actuator, and a suction cup mechanism connected to both ends of the rotating arm; wherein the suction cup mechanism corresponding to the first main machine includes a suction cup, and the suction cup mechanism corresponding to the second main machine includes two suction cups arranged side by side, and the rotating drive actuator drives the suction cups at both ends of the corresponding processing main machines to be respectively located above the loading and conveying line and the loading and unloading stations or respectively located above the loading and unloading stations and the unloading and conveying line.

11. A laser processing system, characterized in that: The invention comprises two laser processing devices for photovoltaic cells according to any one of claims 1 to 10, which are arranged separately along a second direction, wherein the second direction is perpendicular to the first direction.

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