Front electrifying mechanism and laser processing device

Abstract

The utility model provides a front electrifying mechanism and a laser processing device. The front electrifying mechanism comprises a connecting back plate, a connecting bracket, a mounting frame, a translation driving piece and an electrifying part, the connecting support comprises a first connecting plate, a second connecting plate and a third connecting plate, the first connecting plate is installed on the connecting back plate in the first horizontal direction, the second connecting plate and the third connecting plate are connected to the two ends of the first connecting plate in the second horizontal direction respectively, and a first sliding rail and a second sliding rail are arranged on the second connecting plate and the third connecting plate respectively; the mounting frame is slidably connected to the first sliding rail and the second sliding rail. The translation driving part is used for driving the mounting frame to slide; and the power-on part is arranged on the mounting frame and is used for being in contact with a front grid line of the battery piece so as to power on the front surface of the battery piece. According to the front surface electrifying mechanism, the position of the electrifying part can be adjusted on the horizontal plane, so that the electrifying part can be aligned with the grid line on the front surface of the battery piece, and the electrifying effect on the front surface of the battery piece is ensured.

Description

Technical Field

[0001] The present application relates to the field of photovoltaic module production, and specifically to a front power-on mechanism and a laser processing device. Background Art

[0002] In order to improve battery efficiency, after the grid lines of the battery cell are printed, the battery cell can be subjected to laser enhanced contact optimization (LECO) treatment to reduce the contact resistance between the metal grid on the surface of the battery cell and the silicon substrate.

[0003] When implementing laser enhanced contact optimization, it is necessary to contact the grid lines on the front side (facing surface) of the cell through the front power-on mechanism to implement power-on of the front side of the cell. When the cell to be processed is transported to the front power-on mechanism, if there is a position deviation between the grid lines on the cell and the power-on contact components of the front power-on mechanism, it may cause the power-on contact components to fail to align with the target grid lines, and ultimately lead to power-on failure. Utility Model Content

[0004] In order to solve the above technical problems, the present application provides a front power-on mechanism, and its detailed technical solution is as follows:

[0005] A front power-on mechanism comprises a connecting back plate, a connecting bracket, a mounting frame, a translation driving member and a power-on unit, wherein:

[0006] The connecting bracket includes a first connecting plate, a second connecting plate and a third connecting plate, wherein: the first connecting plate is installed on the connecting back plate along a first horizontal direction, the second connecting plate is connected to a first end of the first connecting plate along a second horizontal direction, the third connecting plate is connected to a second end of the first connecting plate along the second horizontal direction, the second connecting plate and the third connecting plate are respectively provided with a first slide rail and a second slide rail, and the second horizontal direction is perpendicular to the first horizontal direction;

[0007] Two ends of the installation frame are slidably connected to the first slide rail and the second slide rail respectively;

[0008] The translation driving member is arranged on the connecting bracket, and is used for driving the installation frame to slide along the first slide rail and the second slide rail in the second horizontal direction;

[0009] The power-on part is arranged on the mounting frame, and is used for contacting the front grid line of the battery cell to realize power-on of the front side of the battery cell.

[0010] The front power-on mechanism provided by the present application has a mounting frame that is slidably connected to a connecting bracket via a first slide rail and a second slide rail, and a power-on unit is mounted on the mounting frame. By driving the mounting frame to translate by a translation drive, the position of the power-on unit on the horizontal plane can be adjusted, so that the power-on unit can be aligned with the grid line on the front of the battery cell that has been delivered to the location, ultimately ensuring the power-on effect on the front of the battery cell.

[0011] In some embodiments, the mounting frame is a rectangular frame, comprising a first frame, a second frame, a third frame and a fourth frame connected end to end in sequence, wherein the first frame is slidably connected to the first slide rail along the second horizontal direction, and the third frame is slidably connected to the second slide rail along the second horizontal direction.

[0012] The installation frame is set as a rectangular frame, which, on the one hand, facilitates the slidable connection between the installation frame and the first slide rail and the second slide rail, and on the other hand, provides sufficient installation position for the power-on part.

[0013] In some embodiments, the power-on part includes a first support row, a second support row and a power-on component, wherein: the two ends of the first support row are respectively connected to the first ends of the two opposite frames of the installation frame; the two ends of the second support row are respectively connected to the second ends of the two opposite frames of the installation frame; and the power-on component is installed on the first support row and the second support row.

[0014] By configuring the power-on unit, the power-on unit can power on the front side of the battery cell from both ends.

[0015] In some embodiments, the power-on component includes a plurality of first elastic pressure needle members and a plurality of second elastic pressure needle members, wherein: a plurality of first elastic pressure needle members are arranged at intervals on the first support row, and a plurality of second elastic pressure needle members are arranged at intervals on the second support row and correspond one-to-one with the first elastic pressure needle members.

[0016] By setting the power-on assembly as a pair of elastic pressure pins, the two ends of the grid line on the battery cell are pressed by the elastic pressure pins, so as to power on the battery cell. In addition, the elastic pressure pins arranged at both ends avoid the light spot generated by the laser scanning mechanism, ensuring that the laser scanning mechanism can perform laser scanning on the grid line and / or the light receiving part on the front of the battery cell.

[0017] In some embodiments, the first elastic pressure needle member and the second elastic pressure needle member have the same structure, and the second elastic pressure needle member includes a pressure needle frame, a pressure needle, a pin shaft and a torsion spring, wherein: the pressure needle frame is connected to the first support row; the pin shaft is installed on the pressure needle frame; the pressure needle is rotatably sleeved on the pin shaft, and the crimping end of the pressure needle extends outward from the pressure needle frame; the torsion spring is sleeved on the pin shaft, the first torsion arm of the torsion spring rests on the pressure needle frame, and the second torsion arm of the torsion spring rests on the pressure needle.

[0018] By arranging the first elastic pressing needle member and the second elastic pressing needle member, the first elastic pressing needle member and the second elastic pressing needle member can be elastically pressed on the battery cell to implement power supply to the battery cell, thereby avoiding pressure damage to the battery cell.

[0019] In some embodiments, the power-on assembly includes a plurality of parallel and taut metal wires, wherein the first ends of the metal wires are connected to the first support row, and the second ends of the metal wires are connected to the second support row.

[0020] When it is necessary to power on the front side of the cell, the cell is controlled to move to the power-on position, and the cell is located under each metal wire. Then, the cell is controlled to rise until each metal wire is pressed against at least one grid line on the front side of the cell, so as to power on the front side of the cell. In addition, the metal wire will not cause a large area of ​​​​blocking to the laser scanning mechanism, thereby ensuring that the laser scanning mechanism can perform laser scanning on the grid lines and / or light-receiving parts on the front side of the cell.

[0021] In some embodiments, the power-on component also includes a plurality of first winding frames and a plurality of second winding frames corresponding one-to-one to the metal wire, wherein: a plurality of first winding frames are arranged at intervals on the first support row, and a plurality of second winding frames are arranged at intervals on the second support row and correspond one-to-one to the first winding frames; the first end of the metal wire is wound on the corresponding first winding frame, and the second end of the metal wire is wound on the corresponding second winding frame.

[0022] By providing the first winding frame and the second winding frame, the metal wire can be tightened and installed. When the metal wire is loose, the metal wire can be tightened again by twisting the first winding frame or the second winding frame.

[0023] In some embodiments, the mounting frame further includes two first connecting blocks and two second connecting blocks, wherein: the two first connecting blocks are respectively positionally adjustable installed at the first ends of the two opposite side frames, and the two second connecting blocks are respectively positionally adjustable installed at the second ends of the two opposite side frames; the two ends of the first support row are respectively connected to one of the first connecting blocks via a first buffer connecting piece, and the two ends of the second support row are respectively connected to one of the second connecting blocks via a second buffer connecting piece.

[0024] The installation positions of the first support row and the second support row are adjusted, so that the front power-on mechanism of the present application can implement the front power-on of battery cells of different sizes. The height difference between the two ends of the first support row can be eliminated by telescopic adjustment of the first buffer connector, and the height difference between the two ends of the second support row can be eliminated by telescopic adjustment of the second buffer connector. The two can also provide buffering when contacting the battery cell to prevent damage to the battery cell, and finally ensure that the power-on components installed on the first support row and the second support row can be crimped on the battery cell.

[0025] In some embodiments, the first buffer connector and the second buffer connector have the same structure, and the first buffer connector includes a connecting screw and a spring, wherein: the upper end of the connecting screw is threaded on the first connecting block, and the lower end of the connecting screw is threaded on the first support row; the spring is sleeved on the connecting screw, the upper end of the spring abuts on the first connecting block, and the lower end of the spring abuts on the first support row.

[0026] A cache structure with a simple structure is provided, which realizes adaptive adjustment of the height of the two ends of the first support row and the second support row through the expansion and contraction adjustment of the spring, and finally ensures that the power-on components installed on the first support row and the second support row can be crimped on the battery cell.

[0027] The present application also provides a laser processing device, which includes a conveyor line, a lifting and conveying mechanism, a camera, a laser scanning mechanism and any of the front power-on mechanisms described above, wherein:

[0028] The conveyor line is used to transport the battery cells to be processed to the lifting station;

[0029] The lifting and conveying mechanism is used to lift the battery cell located at the lifting station out of the conveying line, and to convey the lifted battery cell to the positioning station and the laser processing station in sequence; the camera is arranged above the positioning station, and the camera is used to locate the grid line on the front side of the battery cell located at the positioning station;

[0030] The front power-on mechanism and the laser scanning mechanism are arranged above the laser processing station, wherein the front power-on mechanism is configured to power on the front of the battery cell, and the lifting and conveying mechanism is also configured to power on the back of the battery cell; the laser scanning mechanism is configured to perform laser scanning on the front of the battery cell based on the information on the front of the battery cell acquired by the camera, and the information on the front of the battery cell includes the position information of the grid line on the front of the battery cell and / or the position information of the light-receiving part of the front of the battery cell;

[0031] The lifting and conveying mechanism is also configured to put the battery sheet that has completed the laser enhanced contact optimization process back onto the conveying line;

[0032] The conveyor line is also used to output the battery cells that have completed laser enhanced contact optimization processing to the back-end workstation.

[0033] Through the cooperation of the conveyor line, the lifting conveyor mechanism, the camera, the laser scanning mechanism and the front power-on mechanism, the laser processing device provided by the present application realizes the laser enhanced contact optimization processing of the battery cell. In particular, when the lifting conveyor mechanism, the front power-on mechanism and the laser scanning mechanism are performing the laser enhanced contact optimization processing on the current battery cell, the conveyor line and the camera can perform the conveying and positioning processing on the subsequent battery cells to be processed, thereby ensuring the working rhythm of each processing component and improving the processing efficiency.

[0034] In some embodiments, the conveyor line includes a first branch conveyor line and a second branch conveyor line arranged side by side; the first branch conveyor line and the second branch conveyor line synchronously convey two battery cells; the lifting and conveying mechanism includes an intermediate lifting and conveying part and a side lifting and conveying part arranged on the side of the intermediate lifting and conveying part, and the intermediate lifting and conveying part and the side lifting and conveying part are configured to alternately lift two batteries from the first branch conveyor line and the second branch conveyor line and convey the two lifted battery cells to the laser processing station, and alternately put the two battery cells that have completed laser enhanced contact optimization processing back to the first branch conveyor line and the second branch conveyor line respectively.

[0035] Highly efficient and synchronous laser-enhanced contact optimization processing of two battery cells is achieved, improving processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a structural schematic diagram of the front power-on mechanism in the embodiment of the present application;

[0037] Figure 2 A schematic diagram of the connection structure of the connection bracket and the installation frame in an embodiment of the present application;

[0038] Figure 3 This is a schematic diagram of the structure of the connecting bracket in the embodiment of the present application;

[0039] Figure 4 This is a schematic diagram of the connection structure between the second support row and the second elastic needle pressing member in the embodiment of the present application;

[0040] Figure 5 This is a schematic structural diagram of the second elastic needle pressing member in the embodiment of the present application;

[0041] Figure 6 is a schematic structural diagram of a laser processing device in an embodiment of the present application;

[0042] Figure 7 It is a structural schematic diagram of the lifting and conveying mechanism in the embodiment of the present application;

[0043] Figure 8 This is a schematic diagram of the structure of the first supporting platform in the embodiment of the present application;

[0044] Figures 1 to 8 Included:

[0045] Front power-on mechanism 1:

[0046] Connecting back panel 11;

[0047] Connecting bracket 12: first connecting plate 121, second connecting plate 122, third connecting plate 123, first slide rail 124, second slide rail 125;

[0048] Installation frame 13: first frame 131, second frame 132, third frame 133, fourth frame 134, first connection block 135, second connection block 136;

[0049] Translation drive member 14;

[0050] The power-on part 15 includes a first support row 151, a second support row 152, a second elastic pressure needle member 153, a pressure needle frame 154, a pressure needle 155, a pin shaft 156, and a torsion spring 157;

[0051] Conveyor line 2:

[0052] The first branch conveying line 21;

[0053] The second branch conveying line 22;

[0054] Lifting conveying mechanism 3:

[0055] The intermediate lifting and conveying part 31 includes an intermediate translation module 311 , an intermediate lifting module 312 , a first bearing platform 313 , a second bearing platform 314 , a base plate 3131 , an adsorption plate 3132 , an upper power bearing sheet 3133 , and an avoidance groove 3134 ;

[0056] A first side lifting and conveying part 32; a first side translation module 321, a first side lifting module 322, and a third bearing platform 323;

[0057] The second side lifting and conveying part 33 includes a second side translation module 331 , a second side lifting module 332 , and a fourth bearing platform 333 ;

[0058] Laser scanning mechanism 4. DETAILED DESCRIPTION

[0059] 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.

[0060] like Figures 1 to 3 As shown, the front power-on mechanism 1 in the embodiment of the present application includes a connecting back plate 11, a connecting bracket 12, a mounting frame 13, a translation driving member 14 and a power-on part 15, wherein:

[0061] The connecting bracket 12 includes a first connecting plate 121, a second connecting plate 122 and a third connecting plate 123, wherein: the first connecting plate 121 is installed on the connecting back plate 11 along the first horizontal direction, the second connecting plate 122 is connected to the first end of the first connecting plate 121 along the second horizontal direction, and the third connecting plate 123 is connected to the second end of the first connecting plate 121 along the second horizontal direction. The second connecting plate 122 and the third connecting plate 123 are respectively provided with a first slide rail 124 and a second slide rail 125, and the second horizontal direction is perpendicular to the first horizontal direction.

[0062] Two ends of the installation frame 13 are slidably connected to the first slide rail 124 and the second slide rail 125 respectively.

[0063] The translation drive member 14 is disposed on the connection bracket 12, for example, the translation drive member 14 is disposed on the outer side wall of the third connection plate 123. The translation drive member 14 is used to drive the installation frame 13 to slide along the first slide rail 124 and the second slide rail 125 in the second horizontal direction. The translation drive member 14 can adopt various known linear drives that can drive the installation frame 13 to slide along the first slide rail 124 and the second slide rail 125, such as a cylinder, a screw motor, etc.

[0064] The power-on unit 15 is disposed on the mounting frame 13, and is used to contact the front grid line of the battery cell to realize power-on of the front side of the battery cell. The "power-on" involved in this application refers to the formation of an electrical connection between the two, for example, the formation of an electrical connection between the power-on unit 15 and the front grid line of the battery cell, so as to facilitate the subsequent application of a reverse voltage to the battery cell.

[0065] The front power-on mechanism 10 of the embodiment of the present application can drive the installation frame 13 to translate via the translation drive 14, and implement the position adjustment of the power-on part 15 on the horizontal plane, so that the power-on part 15 can be aligned with the grid line on the front side of the battery cell that has been delivered to the position, and finally ensure the power-on effect on the front side of the battery cell.

[0066] Optionally, the front power-on mechanism 1 in the embodiment of the present application further includes a lifting mechanism, and the connecting back plate 11 is connected to a movable part of the lifting mechanism. The lifting mechanism drives the connecting back plate 11 to rise and fall, and to move horizontally to achieve height adjustment of the power-on part 15.

[0067] like Figure 1 and Figure 2 As shown, optionally, the mounting frame 13 is a rectangular frame, including a first frame 131, a second frame 132, a third frame 133 and a fourth frame 134 which are connected end to end in sequence, wherein the first frame 131 is slidably connected to the first slide rail 124 along the second horizontal direction, and the third frame 133 is slidably connected to the second slide rail 125 along the second horizontal direction.

[0068] Optionally, the power-on portion 15 includes a first support row 151, a second support row 152, and a power-on assembly, wherein: two ends of the first support row 151 are respectively connected to the first ends of two opposite frames of the installation frame 13. Two ends of the second support row 152 are respectively connected to the second ends of two opposite frames of the installation frame 13. Figures 1 to 3 In the embodiment, the two opposite frames are the second frame 132 and the fourth frame 134, that is, the first support row 151 and the second support row 152 are connected side by side at both ends of the second frame 132 and the fourth frame 134. Of course, in other embodiments, the two opposite frames may also be the first frame 131 and the third frame 133, that is, the first support row 151 and the second support row 152 are connected side by side at both ends of the first frame 131 and the third frame 133.

[0069] The power-on components 15 are disposed on the first support row 151 and the second support row 152 .

[0070] like Figure 2 and Figure 4 As shown, optionally, the power-on component 15 includes a plurality of first elastic pressure needle members (not shown in the figure) and a plurality of second elastic pressure needle members 153, wherein: a plurality of first elastic pressure needle members are arranged at intervals on the first support row 151, and a plurality of second elastic pressure needle members 153 are arranged at intervals on the second support row 152 and correspond one-to-one to the first elastic pressure needle members.

[0071] When it is necessary to implement power-on on the front side of the battery cell, the battery cell is controlled to move into position so that the two ends (or two opposite edges) of the battery cell are respectively located below the first support row 151 and the second support row 152. More specifically, the edge of the battery cell is located obliquely below the two support rows so that the two support rows will not block the edge of the battery cell. Next, the battery cell is controlled to rise until each of the first elastic pressure needles on the first support row 151 is respectively crimped to the first end of the corresponding grid line on the battery cell, and each of the second elastic pressure needles 153 on the second support row 152 is respectively crimped to the second end of the corresponding grid line on the battery cell. In this way, after the first elastic pressure needle and the second elastic pressure needle 153 are energized, the front side of the battery cell can be powered on from both ends of the battery cell. In addition, powering on the front side of the battery cell from both ends of the battery cell can achieve avoidance of the laser scanning mechanism, ensuring that the laser scanning mechanism can implement laser scanning of the grid line and / or the light-receiving part on the front side of the battery cell. The "grid line" involved in this application refers to the grid line portion of the upper side of the battery cell, including at least one of the main grid line and the auxiliary grid line.

[0072] The first elastic needle pressing member and the second elastic needle pressing member 153 have the same structure. Taking the second elastic needle pressing member 153 as an example, Figure 5As shown, it includes a pressure needle frame 154, a pressure needle 155, a pin 156 and a torsion spring 157, wherein: the pressure needle frame 154 is connected to the first support row 151. The pin 156 is installed on the pressure needle frame 154. The pressure needle 155 is rotatably sleeved on the pin 156, and the crimping end of the pressure needle 155 extends outward from the pressure needle frame 154. The torsion spring 157 is sleeved on the pin 156, and the first torsion arm of the torsion spring 157 abuts on the pressure needle frame 154, and the second torsion arm of the torsion spring 157 abuts on the pressure needle 155.

[0073] By setting the first elastic pressure needle member and the second elastic pressure needle member 153, the pressure needles 155 of the first elastic pressure needle member and the second elastic pressure needle member 153 can be elastically pressed on the battery cell to implement power supply to the battery cell, and the first elastic pressure needle member and the second elastic pressure needle member 153 are prevented from causing pressure damage to the battery cell.

[0074] Of course, the power-on component 15 may also adopt other structures. For example, in some embodiments, the power-on component 15 includes a plurality of parallel and taut metal wires, the first ends of the metal wires are connected to the first support row 151, and the second ends of the metal wires are connected to the second support row 152. When it is necessary to power on the front side of the battery cell, the battery cell is controlled to move into position, and the battery cell is located below each metal wire. Then, the battery cell is controlled to rise until each metal wire is pressed against at least one grid line on the front side of the battery cell (that is, the metal wire is pressed against at least one of the main grid line or the auxiliary grid line), and each metal wire can be powered on to power on the front side of the battery cell. In addition, the metal wire will not cause large-area shielding to the laser scanning mechanism, thereby ensuring that the laser scanning mechanism can perform laser scanning on the grid lines and / or light-receiving parts on the front side of the battery cell.

[0075] Optionally, the power-on assembly 15 further includes a plurality of first winding frames and a plurality of second winding frames corresponding to the metal wires one by one, wherein: a plurality of first winding frames are arranged at intervals on the first support row 151, and a plurality of second winding frames are arranged at intervals on the second support row 152 and correspond to the first winding frames one by one. The first end of the metal wire is wound on the corresponding first winding frame, and the second end of the metal wire is wound on the corresponding second winding frame.

[0076] By providing the first winding frame and the second winding frame, the metal wire can be tightened and installed. When the metal wire is loose, the metal wire can be tightened again by twisting the first winding frame or the second winding frame.

[0077] like Figure 1 and Figure 2As shown, optionally, the mounting frame 13 also includes two first connecting blocks 135 and two second connecting blocks 136, wherein: the two first connecting blocks 135 are respectively positionally adjustable mounted on the first ends of the second frame 132 and the fourth frame 134, and the two second connecting blocks 136 are respectively positionally adjustable mounted on the second ends of the second frame 132 and the fourth frame 134.

[0078] By adjusting the installation positions of the two first connecting blocks 135 and the two second connecting blocks 136, the spacing between the first support row 151 and the second support row 152 can be adjusted, so that the front power-on mechanism of the present application can implement front power-on of battery cells of different sizes, thereby improving the compatibility of the front power-on mechanism of the present application.

[0079] Optionally, the two ends of the first support row 151 are respectively connected to one of the first connection blocks 135 via a first buffer connector, and the two ends of the second support row 152 are respectively connected to one of the second connection blocks 136 via a second buffer connector. The height difference between the two ends of the first support row 151 can be eliminated by telescopic adjustment of the first buffer connector, and the height difference between the two ends of the second support row 152 can be eliminated by telescopic adjustment of the second buffer connector, ultimately ensuring that the power-on components installed on the first support row and the second support row can be crimped onto the battery cells, and providing a certain buffering effect when the power-on components 15 contact the battery cells.

[0080] Optionally, the first buffer connector and the second buffer connector have the same structure. Taking the first buffer connector as an example, it includes a connecting screw and a spring, wherein: the upper end of the connecting screw is screwed on the first connecting block 135, and the lower end of the connecting screw is screwed on the first support row 151. The spring is sleeved on the connecting screw, the upper end of the spring abuts on the first connecting block 135, and the lower end of the spring abuts on the first support row 151. Through the expansion and contraction adjustment of the spring, the heights of the two ends of the first support row 151 and the second support row 152 can be adaptively adjusted when pressing the battery cell, ultimately ensuring that the power-on components installed on the first support row and the second support row can be crimped on the battery cell.

[0081] The present application also provides a laser processing device, such as Figure 6 As shown, the laser processing device includes a conveyor line 2, a lifting and conveying mechanism 3, a camera (not shown in the figure), a laser scanning mechanism 4 and a front power-on mechanism 1 provided in any of the above embodiments, wherein:

[0082] The conveyor line 2 is used to convey the battery cells to be processed to the lifting station.

[0083] The lifting and conveying mechanism 3 is used to lift the battery cell located at the lifting station away from the conveying line 2, and to convey the lifted battery cell to the positioning station and the laser processing station in sequence.

[0084] The camera is arranged above the positioning station, and the camera is used to position the grid lines on the front side of the battery cell located at the positioning station.

[0085] The front power-on mechanism 1 and the laser scanning mechanism 5 are arranged above the laser processing station, wherein the front power-on mechanism 1 is configured to power the front side of the cell, and the lifting and conveying mechanism 3 is also configured to power the back side of the cell. In this way, the front power-on mechanism 1 and the lifting and conveying mechanism 3 can cooperate to apply a reverse voltage to the cell.

[0086] The laser scanning mechanism 4 is configured to perform laser scanning on the front of the cell based on the information on the front of the cell acquired by the camera, so as to complete the laser enhanced contact optimization treatment of the cell. In the specific implementation process, the information on the front of the cell includes the position information of the grid line on the front of the cell and / or the position information of the light receiving part on the front of the cell. The laser scanning mechanism 4 can choose to scan only the grid line part on the front of the cell, or only the light receiving part other than the grid line on the front of the cell, or both the grid line and the light receiving part.

[0087] After the laser scanning mechanism 4 completes the laser scanning, the lifting and conveying mechanism 3 is also configured to put the battery cells that have completed the laser enhanced contact optimization process back onto the conveying line 2. The conveying line 2 is also used to output the battery cells that have completed the laser enhanced contact optimization process to the back-end workstation.

[0088] It can be seen that, through the cooperation of the conveyor line 2, the lifting conveyor mechanism 3, the camera, the laser scanning mechanism 4 and the front power-on mechanism 1, the laser processing device provided in the embodiment of the present application realizes the laser enhanced contact optimization processing of the battery cell. In particular, when the lifting conveyor mechanism 3, the front power-on mechanism 1 and the laser scanning mechanism 4 are performing the laser enhanced contact optimization processing on the current battery cell, the conveyor line 2 and the camera can perform the conveying and positioning processing on the subsequent battery cells to be processed, thereby ensuring the working rhythm of each processing component and improving the processing efficiency.

[0089] Optionally, the conveyor line 2 includes a first branch conveyor line 21 and a second branch conveyor line 22 arranged side by side. The first branch conveyor line 21 and the second branch conveyor line 22 synchronously convey two battery cells. The lifting conveying mechanism 3 lifts two battery cells from the first branch conveyor line 21 and the second branch conveyor line 22, and synchronously conveys the two lifted battery cells to the positioning station and the laser processing station. After the two battery cells complete the laser enhanced contact optimization treatment, the lifting conveying mechanism 3 puts the two battery cells that have completed the laser enhanced contact optimization treatment back to the first branch conveyor line 21 and the second branch conveyor line 22 respectively. In this way, the laser enhanced contact optimization treatment of the two battery cells can be implemented at the same time, thereby further improving the processing efficiency.

[0090] like Figure 7 and Figure 8 As shown, optionally, in order to further improve the processing efficiency, the lifting and conveying mechanism 3 includes an intermediate lifting and conveying part 31 and a side lifting and conveying part arranged on the side of the intermediate lifting and conveying part 31, and the intermediate lifting and conveying part 31 and the side lifting and conveying part are configured to alternately lift two batteries from the first branch conveyor line 21 and the second branch conveyor line 22 and convey the two lifted batteries to the positioning station and the laser processing station, and alternately put the two batteries that have completed the laser enhanced contact optimization processing back to the first branch conveyor line 21 and the second branch conveyor line 22 respectively.

[0091] That is to say, the middle lifting conveyor 31 and the side lifting conveyor can lift two battery cells from the first branch conveyor line 21 and the second branch conveyor line 22 each time, and convey the two battery cells to the positioning station and the laser processing station. In some other optional embodiments, in order to save equipment costs, only the middle lifting conveyor 31 or only the side lifting conveyor can be set.

[0092] Optionally, the intermediate lifting and conveying part 31 includes an intermediate translation module 311, an intermediate lifting module 312, a first load-bearing platform 313 and a second load-bearing platform 314, wherein: the intermediate lifting module 312 is connected to the movable part of the intermediate translation module 311, the first load-bearing platform 313 and the second load-bearing platform 314 are connected side by side to the movable part of the intermediate lifting module 312, wherein the first load-bearing platform 313 is located below the first branch conveyor line 21, and the second load-bearing platform 314 is located below the second branch conveyor line 22.

[0093] Through the coordinated driving of the intermediate translation module 311 and the intermediate lifting module 312, the first carrier 313 and the second carrier 314 synchronously lift two battery cells from the first branch conveyor line 21 and the second branch conveyor line 22, and convey the two battery cells to the positioning station and the laser processing station. After the laser enhanced contact optimization treatment, the two battery cells are respectively placed back on the first branch conveyor line 21 and the second branch conveyor line 22.

[0094] like Figure 7 As shown, optionally, the side lifting and conveying unit includes a first side lifting and conveying unit 32 arranged on a first side (such as the left side) of the intermediate translation module 311, and a second side lifting and conveying unit 33 arranged on a second side (such as the right side) of the intermediate translation module 311, wherein:

[0095] The first side lifting and conveying part 32 includes a first side translation module 321, a first side lifting module 322 and a third bearing platform 323, wherein the first side lifting module 322 is connected to the movable part of the first side translation module 321, and the third bearing platform 323 is connected to the movable part of the first side lifting module 322, and is located below the first branch conveying line 21. Similarly, the second side lifting and conveying part 33 includes a second side translation module 331, a second side lifting module 332 and a fourth bearing platform 333, wherein the second side lifting module 332 is connected to the movable part of the second side translation module 331, and the fourth bearing platform 333 is connected to the movable part of the second side lifting module 332, and is located below the second branch conveying line 22.

[0096] The third carrier 323 is driven by the first side translation module 321 and the first side lifting module 322, and the fourth carrier 333 is driven by the second side translation module 331 and the second side lifting module 332, synchronously lifts two battery cells from the first branch conveyor line 21 and the second branch conveyor line 22, and transports the two battery cells to the positioning station and the laser processing station. After the laser enhanced contact optimization treatment, the two battery cells are respectively placed back on the first branch conveyor line 21 and the second branch conveyor line 22 (the subsequent conveying section).

[0097] Optionally, the first loading platform 313, the second loading platform 314, the third loading platform 323 and the fourth loading platform 333 have the same structure. Taking the first loading platform 313 as an example, Figure 8 As shown, it includes a substrate 3131, an adsorption plate 3132 and an upper power carrier sheet 3133, wherein: the adsorption plate 3132 is arranged on the substrate 3131, and a negative pressure air cavity is arranged in the adsorption plate 3132. The upper power carrier sheet 3133 is arranged on the adsorption plate 3132, and an adsorption hole connected to the negative pressure air cavity is arranged on the upper power carrier sheet 3133. The upper power carrier sheet 3133 is used to carry the battery cell and to electrify the electrodes on the back of the battery cell. The adsorption plate 3132 is used to adsorb and fix the battery cell on the upper power carrier sheet 3133 through the negative pressure air cavity and the adsorption hole.

[0098] By configuring the first carrier 313 as above, the first carrier 313 can not only carry out adsorption of the battery cell, but also power on the battery cell from the back.

[0099] The upper power carrier sheet 3133 may be a copper sheet connected to a power source.

[0100] Optionally, in order to enable the first loading platform 313 to lift the battery cell out of the first branch conveyor line 21 , an avoidance groove 3134 is provided on the first loading platform 313 .

[0101] The present application is described in sufficient detail above with certain particularity. It should be understood by those skilled in the art that the description in the embodiments is merely exemplary, and all changes made without departing from the true spirit and scope of the present application should fall within the scope of protection of the present application. The scope of protection claimed in the present application is defined by the claims, rather than by the above description in the embodiments.

Claims

1. A front power-on mechanism, characterized in that: The front power-on mechanism includes a connecting back plate, a connecting bracket, a mounting frame, a translation driving member and a power-on unit, wherein: The connecting bracket includes a first connecting plate, a second connecting plate and a third connecting plate, wherein: the first connecting plate is mounted on the connecting back plate along a first horizontal direction, the second connecting plate is connected to a first end of the first connecting plate along a second horizontal direction, the third connecting plate is connected to a second end of the first connecting plate along the second horizontal direction, the second connecting plate and the third connecting plate are respectively provided with a first slide rail and a second slide rail, and the second horizontal direction is perpendicular to the first horizontal direction; Two ends of the installation frame are slidably connected to the first slide rail and the second slide rail respectively; The translation driving member is arranged on the connecting bracket, and the translation driving member is used to drive the installation frame to slide along the first slide rail and the second slide rail in the second horizontal direction; The power-on part is arranged on the installation frame, and is used for contacting the front grid line of the battery cell to realize power-on of the front side of the battery cell.

2. The front power-on mechanism according to claim 1, characterized in that: The installation frame is a rectangular frame, including a first frame, a second frame, a third frame and a fourth frame connected end to end in sequence, wherein the first frame is slidably connected to the first slide rail along the second horizontal direction, and the third frame is slidably connected to the second slide rail along the second horizontal direction.

3. The front power-on mechanism according to claim 1, characterized in that: The power-on part includes a first support row, a second support row and a power-on component, wherein: Two ends of the first support row are respectively connected to first ends of two opposite frames of the installation frame, and two ends of the second support row are respectively connected to second ends of the two opposite frames of the installation frame; The power-on components are installed on the first support row and the second support row.

4. The front power-on mechanism according to claim 3, characterized in that: The power-on assembly includes a plurality of first elastic pressure needle members and a plurality of second elastic pressure needle members, wherein: A plurality of the first elastic pressure needle members are arranged at intervals on the first support row, and a plurality of the second elastic pressure needle members are arranged at intervals on the second support row and correspond one-to-one to the first elastic pressure needle members.

5. The front power-on mechanism according to claim 4, characterized in that: The first elastic needle pressing member and the second elastic needle pressing member have the same structure, and the second elastic needle pressing member includes a needle pressing frame, a needle pressing, a pin shaft and a torsion spring, wherein: The pressing needle frame is connected to the first supporting row; The pin is installed on the needle pressing frame; The pressing needle is rotatably sleeved on the pin shaft, and the pressing end of the pressing needle extends outward from the pressing needle frame; The torsion spring is sleeved on the pin shaft, the first torsion arm of the torsion spring abuts against the pressure needle frame, and the second torsion arm of the torsion spring abuts against the pressure needle.

6. The front power-on mechanism according to claim 3, characterized in that: The power-on assembly includes a plurality of parallel and taut metal wires, wherein the first ends of the metal wires are connected to the first support row, and the second ends of the metal wires are connected to the second support row.

7. The front power-on mechanism according to claim 6, characterized in that: The power-on assembly further includes a plurality of first winding frames and a plurality of second winding frames corresponding to the metal wires one by one, wherein: A plurality of the first winding frames are arranged at intervals on the first support row, and a plurality of the second winding frames are arranged at intervals on the second support row and correspond one to one with the first winding frames; The first end of the metal wire is wound around the corresponding first winding frame, and the second end of the metal wire is wound around the corresponding second winding frame.

8. The front power-on mechanism according to claim 3, characterized in that: The installation frame further comprises two first connection blocks and two second connection blocks, wherein: The two first connecting blocks are respectively installed at the first ends of the two opposite frames in an adjustable manner, and the two second connecting blocks are respectively installed at the second ends of the two opposite frames in an adjustable manner; the two ends of the first support row are respectively connected to one of the first connecting blocks via a first buffer connecting piece, and the two ends of the second support row are respectively connected to one of the second connecting blocks via a second buffer connecting piece.

9. The front power-on mechanism according to claim 8, characterized in that: The first buffer connection member and the second buffer connection member have the same structure, and the first buffer connection member includes a connecting screw and a spring, wherein: The upper end of the connecting screw is screwed to the first connecting block, and the lower end of the connecting screw is screwed to the first supporting row; The spring is sleeved on the connecting screw rod, the upper end of the spring abuts against the first connecting block, and the lower end of the spring abuts against the first supporting row.

10. A laser processing device, characterized in that: The laser processing device comprises a conveyor line, a lifting and conveying mechanism, a camera, a laser scanning mechanism and a front power-on mechanism according to any one of claims 1 to 9, wherein: The conveyor line is used to convey the battery cells to be processed to the lifting station; The lifting and conveying mechanism is used to lift the battery cell located at the lifting station out of the conveying line, and to convey the lifted battery cell to the positioning station and the laser processing station in sequence; the camera is arranged above the positioning station, and the camera is used to locate the grid line on the front side of the battery cell located at the positioning station; The front power-on mechanism and the laser scanning mechanism are arranged above the laser processing station, wherein the front power-on mechanism is configured to power on the front of the battery cell, and the lifting and conveying mechanism is also configured to power on the back of the battery cell; the laser scanning mechanism is configured to perform laser scanning on the front of the battery cell based on the information on the front of the battery cell acquired by the camera, wherein the information on the front of the battery cell includes the position information of the grid line on the front of the battery cell and / or the position information of the light-receiving part on the front of the battery cell; The lifting and conveying mechanism is also configured to put the battery sheet that has completed the laser enhanced contact optimization process back to the conveying line; The conveyor line is also used to output the battery cells that have completed the laser enhanced contact optimization process to the back-end workstation.

11. The laser processing device according to claim 10, characterized in that: The conveyor line comprises a first branch conveyor line and a second branch conveyor line arranged side by side; The first branch conveyor line and the second branch conveyor line synchronously convey two battery cells; The lifting and conveying mechanism includes a middle lifting and conveying part and a side lifting and conveying part arranged on the side of the middle lifting and conveying part. The middle lifting and conveying part and the side lifting and conveying part are configured to alternately lift two batteries from the first branch conveying line and the second branch conveying line and convey the two lifted batteries to the laser processing station, and alternately put the two batteries that have completed the laser enhanced contact optimization processing back to the first branch conveying line and the second branch conveying line respectively.

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