Grid line printing equipment and grid line printing process

Abstract

The invention discloses grid line printing equipment and a grid line printing process, and relates to the technical field of battery grid line printing, the grid line printing equipment comprises a carrier plate device and a laser light emitting device, the carrier plate device comprises a plurality of wire grooves allowing slurry to pass through, the wire grooves are arranged side by side, and the laser light emitting device comprises a light source assembly and a shaping assembly. The light source assembly is used for emitting laser beams to the carrier plate device; the shaping assembly is arranged on the light emitting path of the light source assembly and used for modulating the laser beam, and the laser beam is transmitted to the shaping assembly so that shaping light spots capable of covering the at least two wire grooves can be formed on the carrier plate device. According to the technical scheme, the printing efficiency of the battery grid lines can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of battery grid line printing, and in particular to grid line printing equipment and a grid line printing process. Background Art

[0002] In the laser precision printing technology of photovoltaic cells, the grid line printing equipment usually includes a carrier device and a laser light emitting device. The line groove of the carrier device is used to fill the slurry, and the laser light emitting device is used to emit a laser beam to the line groove. After the laser beam scans along the length direction of the line groove, the slurry in the line groove can be printed on the cell below the carrier device, so that the cell grid line can be formed on the cell.

[0003] However, current laser light-emitting devices usually use a single Gaussian spot to scan a single line groove to print grid lines, resulting in a long time and low printing efficiency for the grid line printing process of a single photovoltaic cell when the number and density of grid lines to be printed on the cell are large. Summary of the invention

[0004] The main purpose of the present invention is to provide a grid line printing device and a grid line printing process, aiming at improving the printing efficiency of battery grid lines.

[0005] To achieve the above object, the grid line printing device proposed in the present invention includes a carrier device and a laser light emitting device, wherein the carrier device includes a plurality of line grooves for the slurry to pass through, and the plurality of line grooves are arranged side by side, and the laser light emitting device includes:

[0006] A light source assembly, used for emitting a laser beam toward the carrier device; and

[0007] The shaping component is arranged on the light output path of the light source component and is used to modulate the laser beam. The laser beam is transmitted through the shaping component to form a shaped light spot on the carrier device that can cover at least two of the line grooves.

[0008] In one embodiment, the shaping component is a beam splitting component, which is used to split the laser beam emitted by the light source component into a plurality of laser beams and form a multi-focus shaping spot on the carrier device to cover a plurality of the wire grooves respectively;

[0009] Alternatively, the shaping component is a homogenizing component, which is used to shape the laser beam emitted by the light source component to form a single-focus shaping light spot on the carrier device, and the single-focus shaping light spot covers a plurality of the line grooves at the same time.

[0010] In one embodiment, the shaping component is rotatably arranged around the light emitting direction of the light source component, so that the size of the shaped light spot is matched with at least two of the wire grooves.

[0011] In one embodiment, the laser light emitting device further includes a position adjustment component, and the position adjustment component includes:

[0012] A rotating disk is arranged at the light emitting side of the light emitting component, and is provided with a plurality of mounting positions in sequence along its circumference, and the shaping components are provided with a plurality of them, each of which is arranged at one of the mounting positions;

[0013] The first driving mechanism is drivingly connected to the turntable and is used to drive the turntable to rotate around the light emitting direction of the light source assembly, so that any of the shaping assemblies can be moved to the light emitting path of the light source assembly.

[0014] In one embodiment, the position adjustment assembly further comprises a second driving mechanism, which is telescopically arranged on one side of the turntable and has an extended state abutting against the shaping assembly and a retracted state separated from the shaping assembly;

[0015] The shaping component is rotatably arranged at the installation position, and when the second driving mechanism abuts against the shaping component, it is used to drive the shaping component to rotate around the light emitting direction of the light source component.

[0016] In one embodiment, the second driving mechanism is disposed on the light emitting path of the light source assembly and is provided with a clearance hole for the laser beam to pass through;

[0017] And / or, one of the plug block and the socket is provided at one end of the second driving mechanism facing the shaping component, and the socket and the other of the sockets is provided at one side of the shaping component facing the second driving mechanism, and when the second driving mechanism abuts against the shaping component, the plug block and the socket are plugged into and matched with each other.

[0018] The present invention also proposes a grid line printing process based on the grid line printing device as described above, comprising the following steps:

[0019] Controlling the laser light emitting device to emit a laser beam toward the carrier device to form a shaped light spot on the carrier device, wherein the shaped light spot can cover at least two of the line grooves;

[0020] The laser light emitting device is controlled to move along the length direction of the wire groove, so that the slurry at the wire groove is printed onto the battery cell to form a gate line.

[0021] In one embodiment, before the step of controlling the laser light emitting device to emit a laser beam toward the carrier device, the step includes:

[0022] Obtaining the wire slot spacing information of the carrier device;

[0023] According to the wire slot spacing information, the shaping component is controlled to move to a target position.

[0024] In one embodiment, the step of controlling the shaping component to move to a target position according to the wire slot spacing information includes:

[0025] Controlling the shaping component corresponding to the wire slot spacing information to move to the light output path of the light source component; and / or,

[0026] Controlling a shaping component located on a light emitting path of the light source component to rotate to a target rotation angle.

[0027] In one embodiment, after the step of controlling the laser light emitting device to move along the length direction of the wire groove, the method further includes:

[0028] The laser light emitting device is controlled to move along a length direction perpendicular to the wire groove, so that the laser light emitting device moves from a previous printing position to a next printing position.

[0029] The grid line printing equipment of the technical solution of the present invention includes a carrier device and a laser light emitting device, wherein the carrier device includes a plurality of line grooves for slurry to pass through, and the laser light emitting device includes a light source component and a shaping component arranged on the light emitting path of the light source component, and the shaping component can modulate the laser light beam emitted by the light source component so that the shaped light spot formed by the laser light beam on the carrier device can cover at least two line grooves. With such an arrangement, when the laser light emitting device scans the carrier device, it can scan at least two line grooves at one time through the shaping light spot, thereby increasing the number of grid lines that can be printed by a single laser scan, which is beneficial to reducing the overall time required for the laser light emitting device to print a single photovoltaic cell, so as to improve the grid line printing efficiency of the grid line printing equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, 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 some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0031] Figure 1 A schematic structural diagram of an embodiment of a gate line printing device provided by the present invention;

[0032] Figure 2 for Figure 1 A schematic diagram of the partial structure of the mid-grid line printing device;

[0033] Figure 3 for Figure 1Another partial structural schematic diagram of the mid-grid line printing device;

[0034] Figure 4 for Figure 2 Schematic diagram of the distribution of multi-focus shaping spots of the center grid line printing equipment;

[0035] Figure 5 for Figure 3 Another schematic diagram of the distribution of the multi-focus shaping light spot of the center grid line printing device;

[0036] Figure 6 A schematic structural diagram of another embodiment of the grid line printing device provided by the present invention;

[0037] Figure 7 for Figure 6 A schematic diagram of the partial structure of the mid-grid line printing device;

[0038] Figure 8 for Figure 6 Another partial structural schematic diagram of the mid-grid line printing device;

[0039] Fig. 9 A schematic structural diagram of a position adjustment assembly of a grid line printing device provided by the present invention;

[0040] Fig.10 for Fig. 9 A top view of the center position adjustment assembly;

[0041] Fig.11 for Fig. 9 a side view of the mid-position adjustment assembly;

[0042] Fig.12 This is a flow chart of the first embodiment of the gate line printing process of the present application;

[0043] Fig.13 This is a flow chart of a second embodiment of the gate line printing process of the present application;

[0044] Fig.14 This is a flow chart of the third embodiment of the gate line printing process of the present application.

[0045] Description of Figure Numbers:

[0046] 100, grid line printing equipment; 10, carrier device; 11, wire groove; 20, laser light emitting device; 21, light source assembly; 22, shaping assembly; 22a, beam splitting assembly; 22b, homogenizing assembly; 23, focusing assembly; 24, position adjustment assembly; 241, turntable; 241a, mounting position; 242, first driving mechanism; 243, second driving mechanism; 243a, rotating part; 243b, telescopic part; 243c, clearance hole; 200, battery cell; 210, grid line.

[0047] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0050] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0051] In the laser precision printing technology of photovoltaic cells, the grid line printing equipment usually includes a carrier device and a laser light emitting device. The line groove of the carrier device is used to fill the slurry, and the laser light emitting device is used to emit a laser beam to the line groove. After the laser beam scans along the length direction of the line groove, the slurry in the line groove can be printed on the cell below the carrier device, so that the cell grid line can be formed on the cell.

[0052] However, current laser light-emitting devices usually use a single Gaussian spot to scan a single line groove to print grid lines, resulting in a long time and low printing efficiency for the grid line printing process of a single photovoltaic cell when the number and density of grid lines to be printed on the cell are large.

[0053] The present invention provides a grid line printing device 100 .

[0054] For ease of understanding and explanation, the directions indicated by the coordinate system shown in the drawings of the specification are used as references, where the first direction is the positive direction of the x-axis, the second direction is the positive direction of the y-axis, and the third direction is the positive direction of the z-axis; the positive direction of the x-axis is front, and the negative direction of the x-axis is back; the positive direction of the y-axis is right, and the negative direction of the y-axis is left; the positive direction of the z-axis is up, and the negative direction of the z-axis is down.

[0055] See also Figures 1 to 8 In one embodiment of the present invention, the grid line printing device 100 includes a carrier device 10 and a laser light emitting device 20, the carrier device 10 includes a plurality of line grooves 11 for the slurry to pass through, and the plurality of line grooves 11 are arranged side by side, and the laser light emitting device 20 includes:

[0056] A light source assembly 21, used for emitting a laser beam toward the carrier device 10; and

[0057] The shaping component 22 is disposed on the light output path of the light source component 21 and is used to modulate the laser beam. The laser beam is transmitted through the shaping component 22 to form a shaped light spot on the carrier device 10 that can cover at least two slots 11 .

[0058] Among them, the carrier device 10 is arranged between the laser light emitting device 20 and the battery cell 200, and a plurality of line grooves 11 arranged side by side are opened on the carrier device 10 to fill the slurry through the line grooves 11, and the slurry can be but is not limited to being set as silver paste. Specifically in the present embodiment, the line grooves 11 are extended along the first direction, and a plurality of line grooves 11 are sequentially spaced in the second direction. The laser light emitting device 20 is used to emit a laser beam to the carrier device 10 so that the laser beam can be transmitted and focused on the carrier device 10. Furthermore, the grid line printing device 100 can also include a driving device, which is transmission-connected to the laser light emitting device 20 so that the laser light emitting device 20 can move along the first direction, so that the slurry can be laser scanned along the length direction of the line grooves 11, so that the slurry is printed on the battery cell 200 to form a battery grid line 210.

[0059] Specifically, the laser light emitting device 20 includes a light source assembly 21 and a shaping assembly 22. The light source assembly 21 is used to provide a laser light source, which can be, but is not limited to, a laser head; the shaping assembly 22 is arranged on the light emitting path of the light source assembly 21, and is used to transmit the laser beam emitted by the light source assembly 21, and to shape and regulate the laser beam, so that the shaped light spot formed by the laser beam on the carrier device 10 can cover the shaped light spots of at least two line slots 11.

[0060] In some embodiments, the shaping component 22 can be configured as a beam splitting component 22a such as a DOE beam splitter to split the laser beam emitted by the light source component 21 into multiple light paths to be focused on two or more line slots 11 on the carrier device 10. Alternatively, the shaping component 22 can also be configured as a homogenizing component 22b such as a DOE homogenizer to homogenize and shape the laser beam emitted by the light source component 21 to adjust the shape and size of a single light spot focused on the carrier device 10 so that the light spot can cover two or more line slots 11 at the same time. The specific implementation can be set according to actual needs and is not limited here.

[0061] Furthermore, a focusing component 23 may be provided between the shaping component 22 and the carrier device 10 . The focusing component 23 may be specifically configured as a processing lens for focusing the split laser beam to generate a well-focused light spot at the carrier device 10 .

[0062] The grid line printing device 100 of the technical solution of the present invention includes a carrier device 10 and a laser light emitting device 20, wherein the carrier device 10 includes a plurality of line grooves 11 for slurry to pass through, and the laser light emitting device 20 includes a light source component 21 and a shaping component 22 arranged on the light emitting path of the light source component 21, and the shaping component 22 can modulate the laser light beam emitted by the light source component 21 so that the shaping spot formed by the laser light beam on the carrier device 10 can cover at least two line grooves 11. With such a configuration, when the laser light emitting device 20 scans the carrier device 10, it can scan at least two line grooves 11 at one time through the shaping spot, thereby increasing the number of grid lines 210 that can be printed by a single laser scan, which is beneficial to reducing the overall time required for the laser light emitting device 20 to print a single photovoltaic cell 200, so as to improve the grid line 210 printing efficiency of the grid line printing device 100.

[0063] See also Figures 1 to 5 In an embodiment of the present invention, the shaping component 22 is a beam splitting component 22a, which is used to split the laser beam emitted by the light source component 21 into a plurality of laser beams and form a multi-focus shaping spot on the carrier device 10 to cover a plurality of line grooves 11 respectively.

[0064] In this embodiment, the beam splitting component 22a can be configured as a DOE beam splitter. The laser beam emitted by the light source component 21 can be split into several laser beams after passing through the DOE beam splitter and emitted at specific separation angles to form a multi-focus shaping light spot on the carrier device 10.

[0065] In some embodiments, the beam splitting component 22a can be used to split the laser beam emitted by the light source component 21 into a 1×N line array, so that the multi-focus shaping spot on the carrier device 10 can respectively cover N line slots 11. In other embodiments, the beam splitting component 22a can also be used to split the laser beam emitted by the light source component 21 into an N*M point array. The specific beam splitting form of the laser beam can be achieved by designing the diffraction pattern on the surface of the DOE beam splitter according to actual needs, which is not limited here.

[0066] See also Figures 6 to 8 In an embodiment of the present invention, the shaping component 22 includes a homogenizing component 22b, which is used to shape the laser beam emitted by the light source component 21 to form a single-focus shaping spot on the carrier device 10, and the single-focus shaping spot covers several line grooves 11 at the same time.

[0067] Specifically in this embodiment, the homogenizing component 22b can be set as a DOE homogenizer. The laser beam emitted by the light source component 21 can be shaped into a homogenized light spot after passing through the DOE homogenizer. The homogenized light spot can be set as, but not limited to, a rectangular homogenized light spot. The specific size and shape of the homogenized light spot can be achieved by designing the diffraction pattern on the surface of the DOE homogenizer according to actual needs, and is not limited here.

[0068] It is understandable that the printing of the grid lines 210 by using a technical solution in which a single-focus shaping light spot covers a plurality of line grooves 11 at the same time can reduce the position accuracy requirements of the shaping light spot to a certain extent, which is beneficial to ensuring the printing effect of the grid lines 210 .

[0069] In the embodiment of the present invention, the shaping component 22 is rotatably disposed around the light emitting direction of the light source component 21 , so that the size of the shaped light spot is adapted to at least two line grooves 11 .

[0070] Among them, when the shaping component 22 is a beam splitting component 22a, the transmitted laser light beam can be split into at least two paths to form a multi-focal shaping spot on the carrier device 10; by rotating the beam splitting component 22a, the effective spacing of the multi-focal shaping spot can be adjusted so that each focusing spot in the multi-focal shaping spot corresponds to a linear groove 11 setting.

[0071] Specifically, see Figure 4 and Figure 5 In one embodiment of the present invention, the beam splitting component 22a is rotatable around the light emitting direction of the light source component 21 to adjust the effective spacing of the multi-focus shaping light spots.

[0072] Specifically in this embodiment, the beam splitting component 22a is used to split the laser beam emitted by the light source component 21 into a 1×N line array, and multiple focus spots in the multi-focus shaping spot are arranged in sequence along the same straight line direction. It should be noted that the effective spacing d of the multi-focus shaping spot is the spacing between two adjacent focus spots in the second direction.

[0073] like Figure 4 As shown, when multiple focused light spots are arranged in sequence along the second direction, the effective spacing d of the multi-focus shaping light spots is the maximum effective spacing. Figure 5 As shown, when it is necessary to reduce the effective spacing d of the multi-focus shaping light spot so as to be suitable for scanning the grid line 210 pattern with a smaller spacing distance, the beam splitter component 22a can be rotated around the light emitting direction of the light source component 21 by a certain angle to change the distribution orientation of the multi-focus shaping light spot on the carrier device 10, so that the spacing between two adjacent focus spots in the multi-focus shaping light spot in the second direction can be correspondingly reduced. In this way, the same beam splitter component 22a can match the grid line 210 patterns with different spacing distances by adjusting its rotation angle, which is conducive to improving the applicability of the beam splitter component 22a.

[0074] Alternatively, in another embodiment of the present invention, when the shaping component 22 is a homogenizing component 22b, a single-focus shaping spot can be formed on the carrier device 10, and by rotating the homogenizing component 22b, the effective size of the single-focus shaping spot can be adjusted so that it can cover at least two line grooves 11 at the same time.

[0075] Specifically, the homogenizing component 22b is rotatably arranged around the light emitting direction of the light source component 21 to adjust the effective size of the single focus shaping light spot. Specifically in this embodiment, the homogenizing component 22b is used to shape the laser beam emitted by the light source component 21 into a rectangular homogenized light spot. It should be noted that the effective length D of the single focus shaping light spot is its projection length in the second direction.

[0076] like Figure 7 As shown, when multiple focused light spots are arranged in sequence along the second direction, the effective length D of the single focus shaping light spot is its maximum effective length. Figure 8 As shown, when the effective length D of the single focus shaping light spot needs to be reduced, the homogenizing component 22b can be rotated around the light emitting direction of the light source component 21 by a certain angle to change the distribution orientation of the single focus shaping light spot on the carrier device 10, so that the projection length of the single focus shaping light spot in the second direction can be correspondingly reduced. In this way, the same homogenizing component 22b can adjust the spacing and number of the grid line 210 patterns that it can adapt by adjusting its rotation angle, which is conducive to improving the applicability of the homogenizing component 22b.

[0077] See also Figures 9 to 11In an embodiment of the present invention, the laser light emitting device 20 further includes a position adjustment component 24, and the position adjustment component 24 includes:

[0078] The rotating disk 241 is arranged at the light emitting side of the light emitting assembly 21, and has a plurality of mounting positions 241a arranged in sequence along its circumference, and a plurality of shaping assemblies 22 are arranged, and each shaping assembly 22 is arranged at a mounting position 241a;

[0079] The first driving mechanism 242 is in driving connection with the turntable 241 , and is used for driving the turntable 241 to rotate around the light emitting direction of the light source assembly 21 , so that any shaping assembly 22 can be moved to the light emitting path of the light source assembly 21 .

[0080] The central axis of the turntable 241 can be arranged parallel to the light emitting path of the laser beam, and a plurality of mounting holes are arranged in sequence in the circumferential direction around the central axis of the turntable, and the mounting holes are arranged through the turntable 241, and each mounting hole can be used to install a shaping component 22, so that a plurality of mounting positions 241a can be arranged in sequence in the circumferential direction of the turntable 241. In this way, a plurality of shaping components 22 can be assembled through the turntable 241, and the plurality of shaping components 22 can all be set as beam splitting components 22a with different surface diffraction patterns, or can all be set as homogenizing components 22b with different surface diffraction patterns, or can include both the beam splitting component 22a and the homogenizing component 22b.

[0081] Further, the first driving mechanism 242 includes a rotating driving member. Specifically in the present embodiment, the rotating driving member can be configured as a rotating motor, the output shaft of which is coaxially arranged with the central axis of the rotating disk 241 and is in transmission connection with the rotating disk 241. In this configuration, the first driving mechanism 242 can drive the rotating disk 241 to rotate by the rotating motor, so that different shaping components 22 are sequentially moved to the light output path of the light source component 21, so that the grid line 210 processing equipment can be adapted to process grid line 210 patterns with different spacing distances, thereby facilitating the improvement of the applicability of the homogenizing component 22b.

[0082] Of course, the technical solution of the present invention is not limited thereto, and the rotating drive member may also be configured as other types of drive members, for example, a toothed structure may be provided on the periphery of the turntable 241, and the rotating drive member may be a driving gear provided on the periphery of the turntable 241, so that the turntable 241 may be rotatably provided on the light emitting path of the light source assembly 21 through the meshing transmission of the driving gear and the turntable 241. The specific implementation method may be configured according to actual needs and is not limited here.

[0083] Furthermore, in some embodiments, the first driving mechanism 242 may also include a translation driving member, which is used to be connected to the rotating driving member in a transmission manner to drive the rotating driving member to move linearly in the third direction. The translation driving member may be, but is not limited to, a telescopic cylinder, a linear motor, etc. With such a configuration, the first driving mechanism 242 can realize the translation movement of the turntable 241 and the shaping assembly 22 disposed on the turntable 241 in the third direction through the translation driving member, thereby facilitating further improving the adjustment flexibility of the position adjustment assembly 24.

[0084] See also Figures 9 to 11 In the embodiment of the present invention, the position adjustment component 24 further includes a second driving mechanism 243, which is telescopically arranged on one side of the rotating disk 241 and has an extended state abutting against the shaping component 22 and a retracted state separated from the shaping component 22;

[0085] The shaping component 22 is rotatably disposed at the mounting position 241 a . When the second driving mechanism 243 abuts against the shaping component 22 , it is used to drive the shaping component 22 to rotate around the light emitting direction of the light source component.

[0086] The second driving mechanism 243 includes a rotating member 243a and a telescopic member 243b, wherein the rotating member 243a is arranged at intervals on one side of the rotating disk 241, and the telescopic member 243b is arranged on the side of the rotating member 243a facing the rotating disk 241, and is in transmission connection with the rotating member 243a so as to be rotatable under the drive of the telescopic member 243b. The telescopic member 243b is telescopically arranged in a third direction so that it can extend or retract from the rotating member 243a toward the rotating disk 241. The rotating member 243a can be, but not limited to, arranged as a rotating motor, and the telescopic member 243b can be, but not limited to, arranged as a telescopic rod.

[0087] When the rotation angle of the shaping component 22 needs to be adjusted, the second driving mechanism 343 can be in a retracted state separated from the shaping component 22. At this time, the first driving mechanism 242 can drive the turntable 241 to rotate, so that the corresponding shaping component 22 and the second driving mechanism 243 and the telescopic member 243b of the shaping component 22 are arranged relative to each other in the third direction. Then, the telescopic member 243b is driven to extend toward the turntable 241 so that the second driving mechanism 243 switches to an extended state abutting against the shaping component 22. At this time, the telescopic member 243b is docked with the corresponding shaping component 22, so that the two can be synchronously rotated under the drive of the rotating member 243a to the preset scheduling, thereby completing the adjustment of the rotation angle of the shaping component 22, and the second driving mechanism 343 is reset to a retracted state separated from the shaping component 22.

[0088] It can be understood that by making each shaping component 22 rotatably disposed at a mounting position 241a of the turntable 241, the rotation adjustment function of the shaping component 22 can be realized, that is, the shaping component 22 located on the light output path of the light source component 21 can be rotatably set, so that the light spot generated by the laser light output device 20 on the carrier device 10 can be adapted to process different grating line 210 patterns, so as to further improve the applicability of the homogenization component 22b.

[0089] In addition, the first driving mechanism 242 and the second driving mechanism 243 can be disposed on opposite sides of the turntable 241 to fully utilize the layout space on both sides of the turntable 241 and reduce the risk of interference between the first driving mechanism 242 and the second driving mechanism 243.

[0090] In an embodiment of the present invention, one end of the second driving mechanism 243 facing the shaping component 22 is provided with one of the plug block and the socket, and the side of the shaping component 22 facing the second driving mechanism 243 is provided with the socket and the other of the sockets. When the second driving mechanism 243 abuts against the shaping component 22, the plug block and the socket are plugged into each other.

[0091] Specifically in this embodiment, the shaping assembly 22 may include a shaping lens and a rotating base, wherein the rotating base is at least partially disposed in the mounting hole of the rotating disk 241 and is movably connected to the rotating disk 241, so that the shaping assembly 22 can be rotatably arranged relative to the rotating disk 241. Among them, a plug block may be provided on the side of the rotating base facing the second driving mechanism 243, and a plug hole may be provided on the telescopic member 243b of the second driving mechanism 243. When the second driving mechanism 243 abuts against the shaping assembly 22, the plug-in cooperation between the plug block and the plug hole can make the telescopic member 243b and the shaping assembly 22 dock quickly and stably, so that the two can rotate synchronously.

[0092] Furthermore, the shaping component 22 may be provided with a plurality of plugs, which are sequentially spaced along the circumference of the rotating base of the shaping component 22; the telescopic member 243b may be provided with a plurality of plug holes, each plug hole being provided corresponding to a plug hole. This is conducive to further improving the connection stability between the telescopic member 243b and the shaping component 22.

[0093] See also Figures 9 to 11 In the embodiment of the present invention, the second driving mechanism 243 is arranged on the light emitting path of the light source assembly, and is provided with a clearance hole 243c for the laser beam to pass through. By providing the clearance hole 243c on the second driving mechanism 243, it is possible to avoid the second driving mechanism 243 being blocked on the transmission path of the laser beam, thereby affecting the shaping effect of the shaping assembly 22 on the laser beam.

[0094] The present invention also proposes a gate line 210 processing technology applied to a gate line 210 processing device. The specific structure of the gate line 210 processing device refers to the above-mentioned embodiment. Since the gate line 210 processing technology of the present application adopts all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here one by one.

[0095] See also Fig.12 In an embodiment of the present invention, the gate line 210 processing process includes the following steps:

[0096] Step S10, controlling the laser light emitting device 20 to emit a laser beam toward the carrier device 10 to form a shaped light spot on the carrier device 10, wherein the shaped light spot can cover at least two of the wire grooves 11;

[0097] Step S20 , controlling the laser light emitting device 20 to move along the length direction of the wire groove 11 , so that the paste at the wire groove 11 is printed onto the battery cell 200 to form the gate line 210 .

[0098] The laser light emitting device 20 includes a light source component 21 and a shaping component 22. The shaping component 22 can be configured as a beam splitting component 22a, so that the shaping spot formed on the carrier device 10 is a multi-focus shaping spot, and the multi-focus shaping spot includes a plurality of focused spots arranged in an array, and each focused spot can cover a line groove 11; the shaping component 22 can also be configured as a homogenizing component 22b, so that the shaping spot formed on the carrier device 10 is a single-focus shaping spot, and the single-focus shaping spot can cover at least two line grooves 11 at the same time. In this way, when the laser light emitting device 20 moves along the length direction of the line groove 11, at least two line grooves 11 can be scanned at the same time to print at least two grid lines 210 on the battery cell 200.

[0099] See also Fig.13 In an embodiment of the present invention, before the step of controlling the laser light emitting device 20 to emit a laser beam toward the carrier device 10, the following steps are included:

[0100] Step S01, obtaining the spacing information of the wire slots 11 of the carrier device 10;

[0101] Step S02, controlling the shaping component 22 to move to a target position according to the spacing information of the wire slot 11.

[0102] Among them, a plurality of line grooves 11 arranged side by side are provided on the carrier device 10, and the plurality of line grooves 11 are all extended along the first direction and arranged at equal intervals in the second direction. The spacing information of the line grooves 11 includes the length of the spacing distance between two adjacent line grooves 11. With such a setting, the target position of the shaping light spot can be determined according to the spacing information of the line grooves 11 and the type of the shaping light spot, so that it can be suitable for printing grid line 210 patterns with different spacings.

[0103] In one embodiment of the present invention, the step of controlling the shaping component 22 to move to the target position according to the spacing information of the wire slot 11 includes:

[0104] The shaping component 22 corresponding to the spacing information of the wire groove 11 is controlled to move to the light output path of the light source component 21 .

[0105] There may be multiple shaping components 22, and the multiple shaping components 22 may be set to different types to adapt to processing different grid lines 210 patterns. By controlling the shaping component 22 corresponding to the spacing information of the line groove 11 to move to the light output path of the light source component 21, the light spot formed by the laser light output device 20 can be adapted to the spacing of the line groove 11 on the carrier device 10, so as to ensure that the shaping light spot formed on the carrier device 10 can cover at least two line grooves 11, thereby realizing the synchronous laser scanning function of multiple line grooves 11.

[0106] In another embodiment of the present invention, the step of controlling the shaping component 22 to move to the target position according to the spacing information of the wire slot 11 includes:

[0107] The shaping component 22 located on the light emitting path of the light source component 21 is controlled to rotate to a target rotation angle.

[0108] When the shaping component 22 is a beam splitting component 22a, the laser light emitting device 20 can form a multi-focus shaping light spot at the carrier device 10. By rotating the shaping component 22, the effective spacing d of the multi-focus shaping light spots can be adjusted so that each focusing light spot in the multi-focus shaping light spots can be aligned with a line groove 11 to adapt to the grid line 210 patterns with different spacings.

[0109] When the shaping component 22 is a homogenizing component 22b, the laser light emitting device 20 can form a single-focus shaping spot at the carrier device 10. By rotating the shaping component 22, the effective length D of the single-focus shaping spot can be adjusted so that the number of line grooves 11 that can be synchronously covered by the single-focus shaping spot can be adapted to the patterns of the grid lines 210 with different spacings to meet different process requirements.

[0110] Of course, the technical solution of the present invention is not limited thereto. In another embodiment, the step of controlling the shaping component 22 to move to the target position according to the spacing information of the wire slot 11 includes:

[0111] Controlling the shaping component 22 corresponding to the spacing information of the wire groove 11 to move to the light output path of the light source component 21;

[0112] The shaping component 22 located on the light emitting path of the light source component 21 is controlled to rotate to a target rotation angle.

[0113] See also Fig.14 In an embodiment of the present invention, after the step of controlling the laser light emitting device 20 to move along the length direction of the wire slot 11, the method further includes:

[0114] Step S30 , controlling the laser light emitting device 20 to move along a length direction perpendicular to the linear groove 11 , so that the laser light emitting device 20 moves from a previous printing position to a next printing position.

[0115] Such an arrangement can provide a guiding path for the relative movement between the laser light emitting device 20 and the carrier device 10. In a specific printing process, the technical solution of the present invention can first execute step S10 to control the laser light emitting device 20 to emit a laser beam to the carrier device 10, so that the shaped light spot is aligned with a group of line grooves 11 on the carrier device 10, wherein each group of line grooves 11 includes at least two line grooves 11; then execute step S20 to control the laser light emitting device 20 to move along the length direction of the line grooves 11 to complete the processing of the grid lines 210 at the current printing position; then execute step S30 to control the laser light emitting device 20 to move along the length direction perpendicular to the line grooves 11, so that the shaped light spot formed by the laser light emitting device 20 on the carrier device 10 can be quickly aligned with the next group of line grooves 11, waiting for the laser scanning of the line grooves 11 at the next printing position.

[0116] It can be understood that the technical solution of the present invention can complete the printing preparation of all the gate lines 210 on the electrode sheet by repeatedly performing step S20 and step S30.

[0117] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A grid line printing device, characterized in that: The grid line printing device comprises a carrier device and a laser light emitting device, wherein the carrier device comprises a plurality of line grooves through which the slurry can pass, and the plurality of line grooves are arranged side by side, and the laser light emitting device comprises: A light source assembly, used for emitting a laser beam toward the carrier device; and The shaping component is arranged on the light output path of the light source component and is used to modulate the laser beam. The laser beam is transmitted through the shaping component to form a shaped light spot on the carrier device that can cover at least two of the line grooves.

2. The grid line printing device according to claim 1, characterized in that: The shaping component is a beam splitting component, which is used to split the laser beam emitted by the light source component into a plurality of laser beams and form a multi-focus shaping light spot on the carrier device to cover a plurality of the wire slots respectively; Alternatively, the shaping component is a homogenizing component, which is used to shape the laser beam emitted by the light source component to form a single-focus shaping light spot on the carrier device, and the single-focus shaping light spot covers a plurality of the line grooves at the same time.

3. The grid line printing device according to claim 2, characterized in that: The shaping component is rotatably arranged around the light emitting direction of the light source component so that the size of the shaped light spot is matched with at least two of the wire grooves.

4. The grid line printing device according to any one of claims 1 to 3, characterized in that: The laser light emitting device further includes a position adjustment component, and the position adjustment component includes: A rotating disk is arranged at the light emitting side of the light emitting component, and is provided with a plurality of mounting positions in sequence along its circumference, and the shaping components are provided with a plurality of them, each of which is arranged at one of the mounting positions; The first driving mechanism is drivingly connected to the turntable and is used to drive the turntable to rotate around the light emitting direction of the light source assembly, so that any of the shaping assemblies can be moved to the light emitting path of the light source assembly.

5. The grid line printing device according to claim 4, characterized in that: The position adjustment assembly further includes a second drive mechanism, which is telescopically disposed on one side of the turntable and has an extended state abutting against the shaping assembly and a retracted state separated from the shaping assembly; The shaping component is rotatably arranged at the installation position, and when the second driving mechanism abuts against the shaping component, it is used to drive the shaping component to rotate around the light emitting direction of the light source component.

6. The grid line printing device according to claim 5, characterized in that: The second driving mechanism is arranged on the light emitting path of the light source assembly and is provided with a clearance hole for the laser beam to pass through; And / or, one of the plug block and the socket is provided at one end of the second driving mechanism facing the shaping component, and the socket and the other of the sockets is provided at one side of the shaping component facing the second driving mechanism, and when the second driving mechanism abuts against the shaping component, the plug block and the socket are plugged into and matched with each other.

7. A grid line printing process, characterized in that: The grid line processing process is applied to the laser light output device according to any one of claims 1 to 6, and the grid line printing process comprises the following steps: Controlling the laser light emitting device to emit a laser beam toward the carrier device to form a shaped light spot on the carrier device, wherein the shaped light spot can cover at least two of the line grooves; The laser light emitting device is controlled to move along the length direction of the wire groove, so that the slurry at the wire groove is printed onto the battery cell to form a gate line.

8. The grid line printing process according to claim 7, characterized in that: Before the step of controlling the laser light emitting device to emit a laser beam toward the carrier device, the method includes: Obtaining the wire slot spacing information of the board carrier device; According to the wire slot spacing information, the shaping component is controlled to move to a target position.

9. The grid line printing process according to claim 8, characterized in that: The step of controlling the shaping component to move to a target position according to the wire slot spacing information comprises: Controlling the shaping component corresponding to the wire slot spacing information to move to the light output path of the light source component; And / or, controlling a shaping component located on a light emitting path of the light source component to rotate to a target rotation angle.

10. The grid line printing process according to claim 7, characterized in that: After the step of controlling the laser light emitting device to move along the length direction of the wire slot, the method further includes: The laser light emitting device is controlled to move along a length direction perpendicular to the wire groove, so that the laser light emitting device moves from a previous printing position to a next printing position.

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