Battery piece optimizing device

Abstract

The invention provides a battery piece optimizing device. The battery piece optimizing device comprises a front electrifying mechanism, a bearing mechanism, a power module and a laser processing mechanism. The front electrifying mechanism comprises a mounting frame and a plurality of metal wires, and the metal wires are arranged on the mounting frame side by side at intervals. The bearing mechanism comprises a bearing table, a conducting strip is arranged on the bearing table, the bearing table is used for bearing a battery piece, and grid lines on the back face of the battery piece make contact with the conducting strip. And the plurality of metal wires are used for crimping fine grid lines on the front surface of the battery piece on the bearing table. A first electrode of the power module is electrically connected with the metal wires, a second electrode of the power module is electrically connected with the conducting strip, and the power module is used for applying voltage to the battery piece through the metal wires and the conducting strip. And the laser processing mechanism is arranged above the front electrifying mechanism and is used for carrying out laser scanning on the front surface of the battery piece. The battery piece optimization device provided by the invention can be in contact with more fine grid lines on the front surface of the battery piece, so that the electrifying effect of a power supply on the front surface of an electric chip is improved.

Description

Technical Field

[0001] The present application relates to the field of photovoltaic cell assembly production, and specifically to a cell optimization device. Background Art

[0002] After screen printing on the solar cells, the solar cells with formed grid lines need to be optimized and processed to improve efficiency. That is, an external power supply is used to apply voltage to the solar cells and a laser is scanned on the surface of the solar cells to optimize the contact performance between the grid lines and the silicon substrate of the solar cells and improve the power generation efficiency of the solar cells.

[0003] Traditional cell optimization involves securing two opposing edges of the cell to contact the grid lines on the front of the cell using fixed conductive mechanisms on either side, and contacting the grid lines on the back of the cell using a conductive conveyor belt. A power supply with two electrodes electrically connected to the fixed conductive mechanisms and the conductive conveyor belt applies voltage to the cell, and a laser scanning mechanism then scans the cell surface.

[0004] The disadvantage of traditional battery cell optimization methods is that the fixed conductive mechanism can only contact a few fine grid lines at the edge of the front of the battery cell, and the contact between the conductive conveyor belt and the grid lines on the back of the battery cell is unstable, which easily produces false connections, ultimately leading to poor efficiency improvement. Summary of the Invention

[0005] In response to the above-mentioned problems existing in traditional cell optimization devices, this application provides a cell optimization device, and its detailed technical solution is as follows:

[0006] A cell optimization device includes a front-side power-on mechanism, a supporting mechanism, a power module, and a laser processing mechanism, wherein:

[0007] The front power-on mechanism includes a mounting frame and a plurality of metal wires, wherein the plurality of metal wires are arranged side by side and at intervals on the mounting frame;

[0008] The carrying mechanism includes a carrying platform, on which a conductive sheet is provided, and the carrying platform is used to carry the battery cell, and the grid lines on the back of the battery cell are in contact with the conductive sheet;

[0009] A plurality of metal wires are used to press the fine grid lines on the front surface of the battery cell on the supporting platform;

[0010] The first electrode of the power module is electrically connected to the plurality of metal wires, the second electrode of the power module is electrically connected to the conductive sheet, and the power module is used to apply voltage to the battery cell via the plurality of metal wires and the conductive sheet;

[0011] The laser processing mechanism is arranged above the front power-on mechanism, and is used to perform laser scanning on the front of the battery cell.

[0012] The cell optimization device provided herein features a front-side crimping mechanism whose power-on components consist of several metal wires that span the cell. These wires are able to contact more fine grid lines on the front of the cell, thereby improving the power-on effect of the power source on the front of the chip. Furthermore, the back of the cell rests firmly on the conductive sheet on the support platform, ensuring stable contact between the grid lines on the back of the cell and the conductive sheet, thereby improving the power-on effect of the power source on the back of the chip.

[0013] In some embodiments, the front power-on mechanism also includes a first support row and a second support row, 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, and the two ends of the second support row are respectively connected to the second ends of the two opposite frames of the installation frame; the first end of the metal wire is connected to the first support row, and the second end of the metal wire is connected to the second support row.

[0014] The first support row and the second support row are provided to facilitate installation, debugging and maintenance of the metal wire.

[0015] In some embodiments, the front power-on mechanism also includes a plurality of first winding frames and a plurality of second winding frames corresponding one to the metal wires, 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.

[0016] By providing the first winding frame and the second winding frame, the connection strength between the two ends of the metal wire and the first support row and the second support row is ensured, thereby preventing the metal wire from falling off.

[0017] In some embodiments, the first winding frame and the second winding frame have the same structure, and the first winding frame includes a first upper frame, a first lower frame, a first bearing and a first spool, wherein: the first upper frame is connected to the first support row, and the first lower frame is connected to the first upper frame; the outer ring of the first bearing is fixedly set on the lower frame, the inner ring of the first bearing is fixedly connected to the first spool, and the first end of the metal wire is fixedly connected to the first spool.

[0018] By arranging the first winding frame and the second winding frame, it is ensured that both ends of the metal wire can be firmly wound onto the first winding frame and the second winding frame, and it is convenient to adjust and replace the metal wire.

[0019] In some embodiments, the first lower frame is rotatably connected to the first upper frame via a rotating shaft; the first winding frame also includes a first spring arranged in a vertical direction, the first spring is located on the side of the rotating shaft close to the second winding frame, the upper end of the first spring abuts against the first upper frame, and the lower end of the first spring abuts against the first lower frame.

[0020] By setting the first winding frame and the second winding frame, the first winding frame and the second winding frame can pull the metal wire in opposite directions after being compressed, and finally make the metal wire taut on the front side of the battery cell, further ensuring that the metal wire can fully contact the corresponding fine grid line.

[0021] In some embodiments, the first winding frame also includes a roller seat, a roller, a first bolt and a second spring, wherein: the rod of the first bolt is accommodated in the through hole at the bottom of the first lower frame, the second spring is sleeved on the first bolt extending in the horizontal direction, the second spring is located on the first side of the first lower frame, the first end of the second spring abuts against the nut of the second end of the first bolt, and the second end of the second spring abuts against the surface of the first side of the first lower frame; the roller seat is located on the second side of the first lower frame opposite to the first side, the roller seat is fixedly connected to the first end of the first bolt, and the roller is installed on the roller seat; the second end of the metal wire is connected to the second winding frame after wrapping around the roller downward.

[0022] By screwing the first bolt, the position of the roller seat and the roller can be pre-adjusted, thereby adjusting the tightness of the metal wire and ultimately ensuring that the metal wire can be tightened on the battery cell.

[0023] In some embodiments, the front power-on mechanism further includes a plurality of pressing wires, which are arranged side by side and spaced apart on the mounting frame and located above the metal wire, and the pressing wires are perpendicular to the metal wire; or, at least part of the pressing wires are arranged perpendicular to the metal wire; or, at least two groups of pressing wires symmetrically press the metal wire, and each group of pressing wires includes at least one pressing wire; the pressing wires press the metal wire downward against the front of the battery cell.

[0024] By pressing the wire, ensure that the middle section of the metal wire is pressed tightly against the front of the battery cell to prevent the middle section of the metal wire from warping up and separating from the grid line, thus avoiding connection.

[0025] In some embodiments, the front power-on mechanism also includes a third support row and a fourth support row, the two ends of the third support row are connected to the first ends of the other two opposite frames of the installation frame, and the two ends of the fourth support row are respectively connected to the second ends of the other two opposite frames of the installation frame; the first end of the pressing wire is connected to the third support row, and the second end of the pressing wire is connected to the fourth support row.

[0026] The third and fourth support rows are provided to facilitate the installation, debugging and maintenance of the wire pressing.

[0027] In some embodiments, the front power-on mechanism also includes a number of third winding frames and a number of fourth winding frames corresponding one to the pressing wires, wherein: a number of third winding frames are arranged at intervals on the third support row, and a number of fourth winding frames are arranged at intervals on the fourth support row and correspond one to one to the third winding frames; the first end of the pressing wire is wound on the corresponding third winding frame, and the second end of the pressing wire is wound on the corresponding fourth winding frame.

[0028] By setting up the third winding frame and the fourth winding frame, the connection strength between the two ends of the pressed wire and the third support row and the fourth support row is ensured, which prevents the pressed wire from falling off and facilitates the overall disassembly, maintenance and replacement of all pressed wires.

[0029] In some embodiments, the third winding frame has the same structure as the fourth winding frame and is symmetrically arranged one by one, the third winding frame includes a second upper frame body, a second lower frame body, a second bolt, a guide rod, a third spring, a second bearing and a second I-wheel, wherein; the second upper frame body is connected to the third support row, the second upper frame body includes a vertical plate and a first mounting plate and a second mounting plate perpendicular to the vertical plate and arranged parallel to the upper and lower parts, and the second mounting plate has a vertical through hole; the first end of the second bolt passes through the vertical through hole of the second mounting plate and is screwed to the upper end part of the second lower frame body, and the nut of the second end of the second bolt is located on the lower end surface of the second mounting plate; the upper and lower ends of the guide rod are respectively fixed to the first mounting plate and the second mounting plate; the third spring is sleeved on the guide rod, the upper end of the third spring abuts against the upper end part of the second lower frame body, and the lower end of the third spring abuts against the second mounting plate; the outer ring of the second bearing is fixedly set at the lower end part of the second lower frame body, the second I-wheel is fixedly mounted on the inner ring of the second bearing, and the first end of the pressing thread is fixedly connected to the second I-wheel.

[0030] By tightening the second bolt, the height of the second lower frame 1 can be adjusted, thereby conveniently adjusting the height of the pressing wire, ultimately ensuring that the pressing wire can press the metal wire tightly against the front surface of the battery cell. When the second lower frame is raised or lowered relative to the second upper frame under the push of the second bolt, the third spring adaptively expands and contracts to maintain pressure on the upper end of the second lower frame and the second mounting plate of the second upper frame, thereby ensuring the stability of the connection between the second lower frame and the second upper frame and preventing the second lower frame from loosening.

[0031] In some embodiments, the first electrode of the power module is electrically connected to a plurality of pressing wires.

[0032] The pressing wire can also be used to electrify the thin grid lines on the front side of the solar cell pressed by it, thereby further improving the electrification effect of the present application on the front side of the solar cell.

[0033] In some embodiments, the supporting platform includes a mounting seat and an insulating plate, wherein: the insulating plate is arranged on the mounting seat, a hollow area is provided in the middle of the insulating plate, the conductive sheet is embedded in the hollow area, the upper surface of the insulating plate and the upper surface of the conductive sheet are located on the same horizontal plane to constitute the supporting surface of the supporting platform; an exhaust pipeline connected to the exhaust device is provided in the mounting seat, and an adsorption hole connected to the exhaust pipeline is also provided on the conductive sheet, and the exhaust device exhausts the adsorption hole through the exhaust pipeline so that the adsorption hole generates adsorption force.

[0034] By embedding the conductive sheet in the hollowed-out area in the middle of the insulating plate, the conductive sheet only applies power to the bottom surface of the cell, preventing leakage. Furthermore, by providing an exhaust pipe and adsorption holes, the support platform can adsorb and fix the cell, ensuring full contact between the conductive sheet and the bottom surface of the cell.

[0035] In some embodiments, downwardly inclined pressing surfaces are provided on both side edges of the insulating plate near both ends of the metal wire.

[0036] Make sure the metal wire is close to the upper surface of the battery cell to prevent it from warping or arching upwards and causing a poor connection.

[0037] In some embodiments, the battery cell optimization device also includes a conveyor line, and the carrying mechanism also includes a carrying platform driving module; the conveyor line is used to convey the battery cells to be processed to the lifting station; the carrying platform is connected to the movable part of the carrying platform driving module, and the carrying platform driving module is used to drive the carrying platform to move horizontally to the bottom of the lifting station, and drive the carrying platform to lift the battery cells out of the conveyor line; the carrying platform driving module is also used to drive the carrying platform to move horizontally to the bottom of the front power-on mechanism, and drive the carrying platform to rise toward the front power-on mechanism, so that several metal wires are crimped on the fine grid lines on the front of the battery cells located on the carrying platform; the carrying platform driving module is also used to drive the carrying platform to descend, so as to put the battery cells that have completed the optimization process back onto the conveyor line; the conveyor line is also used to output the battery cells that have completed the optimization process to the downstream station.

[0038] By connecting the carrier to the movable components of the carrier drive module, the carrier, once in position, can rise toward the front-side power-up mechanism, allowing the metal wire to be crimped onto the fine grid lines on the front of the cell. The coordination of the conveyor line and the carrier mechanism enables automatic loading of cells to be processed and unloading of processed cells, improving production efficiency.

[0039] In some embodiments, the battery cell optimization device also includes a UVW adjustment module and a camera arranged above the translation path of the supporting platform, and the mounting frame of the front power-on mechanism is connected to the movable part of the UVW adjustment module; the camera is used to obtain the position information of the battery cell located on the supporting platform and the grid line position information on the front of the battery cell, the UVW adjustment module is used to adjust the mounting frame according to the position information of the battery cell obtained by the camera, and the laser processing mechanism performs laser scanning on the front of the battery cell based on the grid line position information on the front of the battery cell obtained by the camera.

[0040] After the platform is moved into position, the UVW adjustment module adjusts or does not adjust the mounting frame based on the cell position information captured by the camera. This ensures that when the platform rises toward the front power-up mechanism, the metal wire can be accurately crimped onto the fine grid lines on the front of the cell. The laser processing mechanism can perform a laser scan on the front of the cell based on the grid line position information on the front of the cell captured by the camera, ensuring scanning accuracy and ultimately improving the optimization effect of the cell processing.

[0041] In some embodiments, the carrier platform drive module includes a translation drive module and a lifting drive module, wherein: the lifting drive module is connected to the movable part of the translation drive module, and the carrier platform is connected to the movable part of the lifting drive module. The translation drive module is used to drive the carrier platform to translate, and the lifting drive module is used to drive the carrier platform to lift and lower.

[0042] The platform drive module works in conjunction with the translation and elevation drive modules to drive the platform for translation and elevation, enabling the platform to lift the cells from the conveyor line and move them beneath the front-side power-up mechanism. After optimizing the cells, the cells are returned to the conveyor line, improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 Schematic diagram of the structure of the battery cell optimization device in the embodiment of the present application;

[0044] Figure 2 Schematic diagram of the structure of the carrier platform in the embodiment of the present application;

[0045] Figure 3 Schematic diagram of the partial structure of the carrier platform in the embodiment of the present application;

[0046] Figure 4 Schematic diagram of the structure of the supporting mechanism in the embodiment of the present application;

[0047] Figure 5 This is a schematic structural diagram of a front-side power-on mechanism in one embodiment of the present application;

[0048] Figure 6 This is a schematic structural diagram of a front-side power-on mechanism in another embodiment of the present application;

[0049] Figure 7 This is a schematic structural diagram of the first winding frame in an embodiment of the present application at one viewing angle;

[0050] Figure 8 This is a schematic structural diagram of the first winding frame in the embodiment of the present application from another perspective;

[0051] Figure 9 for Figure 8AA section view;

[0052] Figure 10 This is a schematic structural diagram of the first bearing and the first spool in an embodiment of the present application;

[0053] Figure 11 Schematic diagram of the structure of the third winding frame in an embodiment of the present application at one viewing angle;

[0054] Figure 12 Schematic diagram of the structure of the third winding frame in the embodiment of the present application from another perspective;

[0055] Figure 13 This is a schematic structural diagram of the second bearing and the second spool in an embodiment of the present application;

[0056] Figures 1 to 13 Included are:

[0057] Front power-on mechanism 1:

[0058] Mounting frame 11, wire 12, first support row 13, second support row 14, first winding frame 15, first upper frame 151, first lower frame 152, first bearing 153, first spool 154, rotating shaft 155, first spring 156, roller seat 157, roller 159, first bolt 160, second spring 161, pressing wire 17, third support row 18, fourth support row 19, third winding frame 110, fourth winding frame 120, second upper frame 111, second lower frame 112, guide rod 113, third spring 114, second bearing 115, second spool 116, vertical plate 1111, first mounting plate 1112, second mounting plate 1113, vertical through hole 1114;

[0059] Carrying mechanism 2:

[0060] The supporting platform 21 includes a mounting seat 211, an insulating plate 212, a pressing slope 213, and an avoidance groove 314;

[0061] Conductive sheet 22;

[0062] The platform drive module 23 includes a translation drive module 231 and a lifting drive module 232;

[0063] Conveyor line 3;

[0064] Laser processing mechanism 4;

[0065] UVW adjustment module 5. DETAILED DESCRIPTION

[0066] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0067] The surface of the cell has a grid line structure. Specifically, depending on the type of cell, it has at least fine grid lines and may also have main grid lines.

[0068] like Figures 1 to 5 As shown, the cell optimization device in the embodiment of the present application includes a front power-on mechanism 1, a carrying mechanism 2, a power module (not shown in the figure) and a laser processing mechanism 4, wherein:

[0069] The front power-on mechanism 1 includes a mounting frame 11 and a plurality of metal wires 12 . The metal wires 12 are arranged side by side and spaced apart on the mounting frame 11 .

[0070] The carrying mechanism 2 includes a carrying platform 21 on which a conductive sheet 22 is provided. The carrying platform 21 is used to carry the battery cell. The grid lines on the back of the battery cell are in contact with the conductive sheet 22, and the thin grid lines on the front of the battery cell are pressed by the metal wire 12.

[0071] The plurality of metal wires 12 are used to press-connect the fine grid lines on the front surface of the solar cell on the supporting platform 21 .

[0072] The first electrode of the power module is electrically connected to the metal wires 12 , and the second electrode of the power module is electrically connected to the conductive sheet 22 . The power module is used to apply voltage to the battery cell via the metal wires 12 and the conductive sheet 22 .

[0073] The laser processing mechanism 4 is arranged above the front power-on mechanism 1 , and is used to perform laser scanning on the front surface of the battery cell.

[0074] The optional working process of the cell optimization device in the embodiment of the present application is as follows:

[0075] The battery cells to be processed are placed on the carrier 21 , and the carrier 21 carries the battery cells and moves to the bottom of the front power-on mechanism 1 .

[0076] The platform 21 is controlled to rise toward the front power-on mechanism 1, so that the metal wire 12 is pressed against the thin grid lines on the front of the cell on the platform 21. At the same time, the conductive sheet 22 on the platform 21 is fully pressed against the grid lines on the back of the cell.

[0077] The first and second electrodes of the control power module apply voltage to the cell via the metal wire 12 and the conductive sheet 22. Simultaneously, the laser processing mechanism 4 performs laser scanning on the front surface of the cell, thereby optimizing the cell, reducing the contact resistance between the grid lines on the cell surface and the silicon substrate, and improving cell efficiency.

[0078] In the cell optimization device provided in the embodiments of the present application, the front-side crimping mechanism 1 comprises a plurality of metal wires 12 extending across the cell. These wires 12 are able to contact more fine grid lines on the front side of the cell, thereby improving the power supply's effect on the front side of the cell. Furthermore, the back side of the cell rests firmly on the conductive sheet 22 on the support platform, ensuring stable contact between the grid lines on the back side of the cell and the conductive sheet 22. This improves the power supply's effect on the back side of the chip, ultimately enhancing the cell optimization process.

[0079] In addition, the metal wire 12 will not cause a large area of shading to the laser processing mechanism 4, thereby ensuring the scanning effect of the laser processing mechanism 4 on the target area on the front side of the battery cell.

[0080] The "power-on" mentioned in this application refers to the formation of an electrical connection between the two, for example, an electrical connection is formed between the metal wire 12 and the fine grid line on the front of the battery cell, and an electrical connection is formed between the conductive sheet 22 and the grid line on the back of the battery cell, so that the power module can apply voltage to the battery cell through the metal wire 12 and the conductive sheet 22.

[0081] like Figure 5 As shown, optionally, the front power-on mechanism 1 further includes a first support row 13 and a second support row 14, wherein: both ends of the first support row 13 are respectively connected to the two opposite frames of the installation frame 11 (such as Figure 5 The first ends of the first support rows 13 and the second ends of the second support rows 14 are connected to the first ends of the two opposing frames (e.g., the left and right frames) of the mounting frame 11, respectively. The first ends of the wires 12 are connected to the first support rows 13, and the second ends of the wires 12 are connected to the second support rows 14. The arrangement of the first and second support rows 13 and 14 facilitates the overall installation and removal of the wires 12 for maintenance, allowing multiple wires 12 to be arranged side by side on the mounting frame 11.

[0082] The first support row 13 and the second support row 14 may be made of conductive metal. The first electrode of the power module is electrically connected to at least one of the first support row 13 and the second support row 14 , thereby achieving conduction with all the metal wires 12 .

[0083] In order to ensure the connection strength between the two ends of the metal wire 12 and the first support row 13 and the second support row 14, the metal wire 12 is prevented from falling off when it is pressed. Figure 5As shown, the front power-on mechanism 1 optionally further includes a plurality of first winding frames 15 and a plurality of second winding frames (not shown) corresponding to the metal wires 12. The plurality of first winding frames 15 are spaced apart on the first support row 13, and the plurality of second winding frames are spaced apart on the second support row 14 and correspond to the first winding frames 15. The first end of the metal wire 12 is wound around the corresponding first winding frame 15, and the second end of the metal wire 12 is wound around the corresponding second winding frame 15.

[0084] Optionally, the first winding frame 15 and the second winding frame have the same structure. Figures 7 to 10 As shown, it includes a first upper frame 151, a first lower frame 152, a first bearing 153, and a first spool 154. The first upper frame 151 is connected to the first support row 13, and the first lower frame 152 is connected to the first upper frame 151. The outer ring of the first bearing 153 is fixedly mounted on the lower frame 152, and the inner ring of the first bearing 153 is fixedly connected to the first spool 154. The first end of the metal wire 12 is fixedly connected to the first spool 154.

[0085] Still taking the first winding frame 15 as an example, the first lower frame 152 is optionally rotatably connected to the first upper frame 151 via a rotating shaft 155. The first winding frame 15 also includes a first spring 156 arranged in the vertical direction. The first spring 156 is located on the side of the rotating shaft 155 close to the second winding frame. The upper end of the first spring 156 abuts against the first upper frame 151, and the lower end of the first spring 156 abuts against the first lower frame 152.

[0086] With this arrangement, the first lower frame 152 of the first winding frame 15 has a tendency to rotate about the rotation axis 155 away from the second winding frame under the pressure of the first spring 156. Similarly, the first lower frame 152 of the second winding frame has a tendency to rotate about the rotation axis 155 away from the first winding frame 15 under the pressure of the first spring 156. In this way, when the metal wire 12 is pressed against the front surface of the battery cell, the first winding frame 15 and the second winding frame can pull the metal wire 12 in opposite directions at both ends after being compressed, ultimately making the metal wire 12 taut against the front surface of the battery cell, further ensuring that the metal wire 12 can fully contact the corresponding fine grid lines.

[0087] Taking the first winding frame 15 as an example, the first winding frame 15 optionally further includes a roller seat 157, a roller 159, a first bolt 160, and a second spring 161. The rod of the first bolt 160 is received in a through-hole at the bottom of the first lower frame 152. The second spring 161 is sleeved onto the horizontally extending first bolt 160. The second spring 161 is located on a first side of the first lower frame 152. The first end of the second spring 161 abuts against the nut at the second end of the first bolt 160, and the second end of the second spring 161 abuts against the surface of the first side of the first lower frame 152. The roller seat 157 is located on a second side of the first lower frame 162, opposite the first side. The roller seat 157 is fixedly connected to the first end of the first bolt 160, and the roller 159 is mounted on the roller seat 157. The second end of the metal wire 12 passes downward around the roller 159 and is then connected to the second winding frame.

[0088] By screwing the first bolt 160 , the positions of the roller seat 157 and the roller 159 can be pre-adjusted, thereby adjusting the tightness of the metal wire 12 and ultimately ensuring that the metal wire 12 can be tightened on the battery cell.

[0089] like Figure 5 As shown, optionally, the front power-on mechanism 1 further includes a plurality of pressing wires 17, which are arranged side by side and spaced apart on the mounting frame 11 and located above the metal wire 12, and the pressing wires 17 are all perpendicular to the metal wire 12. When the carrier 21 carrying the battery cell to be processed rises toward the front power-on mechanism 1, the metal wire 12 and the pressing wire 17 are successively tightened on the front of the battery cell. Since the metal wire 23 is pressed by the pressing wire 17 thereon, it is ensured that the middle section of the metal wire 12 remains pressed on the corresponding fine grid line on the front of the battery cell, preventing the middle section of the metal wire 12 from warping up and detaching from the fine grid line on the front of the battery cell.

[0090] Of course, only some of the pressing wires 17 may be arranged perpendicular to the metal wire 12, as long as the pressing wires 17 perpendicular to the metal wire 12 can press the middle section of the metal wire 12. Alternatively, among the plurality of pressing wires 17, at least two groups of pressing wires 17 can symmetrically press the metal wire 12, wherein each group of pressing wires includes at least one pressing wire.

[0091] Continue to refer Figure 5 As shown, optionally, the front power-on mechanism 1 further includes a third support row 18 and a fourth support row 19, and both ends of the third support row 18 are connected to the other two opposite frames of the mounting frame 11 (such as Figure 5 The first end of the fourth support row 19 is connected to the first end of the front and rear frames of the mounting frame 11, and the two ends of the fourth support row 19 are respectively connected to the second ends of the other two opposite frames of the mounting frame 11. The first end of the pressing wire 17 is connected to the third support row 18, and the second end of the pressing wire 17 is connected to the fourth support row 19.

[0092] In order to ensure the connection strength between the two ends of the pressing wire 17 and the third support row 18 and the fourth support row 19, the pressing wire 17 is prevented from falling off when it is pressed. Figure 5 As shown, the front-side power-on mechanism 1 optionally further includes a plurality of third winding frames 110 and a plurality of fourth winding frames 120 corresponding to the pressing wires 17. The third winding frames 110 are spaced apart on the third support row 18, and the fourth winding frames 120 are spaced apart on the fourth support row 19 and correspond to the third winding frames 110. The first end of the pressing wire 17 is wound around the corresponding third winding frame 110, and the second end of the pressing wire 17 is wound around the corresponding fourth winding frame 120.

[0093] Optionally, the third winding frame 110 and the fourth winding frame 120 have the same structure. Figures 11 to 13 As shown, it includes a second upper frame 111, a second lower frame 112, a second bolt (not shown in the figure), a guide rod 113, a third spring 114, a second bearing 115 and a second I-shaped pulley 116, wherein; the second upper frame 111 is connected to the third support row 110, the second upper frame 111 includes a vertical plate 1111 and a first mounting plate 1112 and a second mounting plate 1113 perpendicular to the vertical plate 1111 and arranged parallel to each other up and down, and the second mounting plate 1113 is provided with a vertical through hole 1114.

[0094] The first end of the second bolt passes through the vertical through-hole 1114 in the second mounting plate 113 and is screwed to the upper end of the second lower frame 112. The nut on the second end of the second bolt is located on the lower end surface of the second mounting plate 1113. The upper and lower ends of the guide rod 113 are fixed to the first and second mounting plates 1112, 1113, respectively. The third spring 114 is sleeved onto the guide rod 113, with the upper end of the third spring 114 abutting the upper end of the second lower frame 112 and the lower end of the third spring 114 abutting the second mounting plate 1113. The outer ring of the second bearing 115 is fixedly mounted on the lower end of the second lower frame 112. The second spool 116 is fixedly mounted on the inner ring of the second bearing 115. The first end of the pressing thread 117 is fixedly connected to the second spool 116.

[0095] By tightening the second bolt, the height of the second lower frame 112 can be adjusted, thereby adjusting the height of the pressing wire 117, ultimately ensuring that the pressing wire 17 can press the metal wire 12 against the front surface of the battery cell. In addition, when the second lower frame 112 is raised or lowered relative to the second upper frame 111 under the push of the second bolt, the third spring 114 adaptively expands and contracts, maintaining a tight connection between the upper end of the second lower frame 112 and the second mounting plate 1113 of the second upper frame 111, thereby ensuring the stability of the connection between the second lower frame 112 and the second upper frame 111 and preventing the second lower frame 112 from loosening.

[0096] Optionally, the first electrode of the power module is also electrically connected to a plurality of pressing wires 17. In this way, the pressing wires 17 can also power up the fine grid lines on the front side of the cell pressed by them, thereby further improving the power-up effect of the present application on the front side of the cell.

[0097] For example, the third support row 18 and the fourth support row 19 are made of conductive metal material, and the first electrode of the power module is electrically connected to at least one of the third support row 18 and the fourth support row 19 , thereby achieving conduction with all the pressing wires 17 .

[0098] like Figure 2 As shown, optionally, the supporting platform 21 includes a mounting seat 211 and an insulating plate 212, wherein: the insulating plate 212 is arranged on the mounting seat 211, a hollow area is provided in the middle of the insulating plate 212, the conductive sheet 22 is embedded in the hollow area, and the upper surface of the insulating plate 212 and the upper surface of the conductive sheet 22 are located on the same horizontal plane to constitute the supporting surface of the supporting platform 21.

[0099] By embedding the conductive sheet 22 within the hollowed-out area in the center of the insulating plate 212, the conductive sheet 22 is ensured to only energize the grid lines on the bottom surface of the cell, preventing leakage from the conductive sheet 22 and causing charging at the edge of the support platform 21. The insulating plate 212 can be made of polyetheretherketone (PEEK), which offers advantages such as high mechanical strength, high temperature resistance, impact resistance, flame retardancy, acid and alkali resistance, wear resistance, fatigue resistance, and excellent electrical insulation properties.

[0100] Optionally, an exhaust pipe connected to the exhaust device is further provided in the mounting base 211, and an adsorption hole connected to the exhaust pipe is further provided on the conductive sheet 22. The exhaust device exhausts air from the adsorption hole through the exhaust pipe so that the adsorption hole generates an adsorption force. With such a setting, the supporting platform 21 can implement adsorption and fixation of the battery cell, ensure that the conductive sheet 22 is in full contact with the lower surface of the battery cell, and prevent the battery cell from accidentally sliding during processing.

[0101] like Figure 3 As shown, the insulating plate 212 may optionally be provided with downwardly inclined pressing surfaces 213 at both ends of the metal wire 12. This arrangement prevents the metal wire from being raised by the edges of the insulating plate 212, causing the middle section to warp or arch upward, thereby further ensuring that the metal wire 12 is in close contact with the upper surface of the battery cell.

[0102] like Figure 1 and Figure 4 As shown, optionally, the cell optimization device in the embodiment of the present application further includes a conveyor line 3, and the carrying mechanism 2 further includes a carrying platform driving module 23.

[0103] The conveyor line 3 is used to convey the battery cells to be processed to the lifting station.

[0104] The carrier 21 is connected to the movable part of the carrier driving module 23 . The carrier driving module 23 is used to drive the carrier 21 to move horizontally to the bottom of the lifting station and drive the carrier 21 to lift the battery cell out of the conveyor line 3 .

[0105] The carrier platform driving module 23 is also used to drive the carrier platform 21 to move horizontally to the bottom of the front power-on mechanism 1, and to drive the carrier platform 21 to rise toward the front power-on mechanism 1, so that the metal wire 12 is crimped onto the fine grid line on the front of the battery cell located on the carrier platform 21.

[0106] After the laser processing mechanism 4 completes the optimization process on the cell, the carrier drive module 23 is also used to drive the carrier 21 to descend, so as to place the cell after the optimization process back onto the conveyor line 3. The conveyor line 3 outputs the cell after the optimization process to the subsequent workstation.

[0107] As can be seen, by connecting the carrier 21 to the movable component of the carrier drive module 23, the carrier 21 can be moved into position and lift the battery cell to be processed toward the front power-on mechanism 1, so that the metal wire 12 is crimped onto the fine grid lines on the front of the battery cell. The cooperation between the conveyor line 3 and the carrier mechanism 2 realizes the automatic loading of the battery cell to be processed and the automatic unloading of the processed battery cell.

[0108] The conveyor line 3 can adopt a segmented structure, which includes an input section and an output section. The front power-on mechanism 1 and the laser scanning mechanism 4 are both located between the input section and the output section. The carrier drive module 23 is configured to move back and forth between the discharge end of the input section and the feed end of the output section, thereby lifting the battery cells to be processed from the discharge end of the input section and moving the battery cells horizontally to the bottom of the front power-on mechanism 1. The processed battery cells are then placed back on the output section, which then outputs the optimized battery cells to the downstream workers. Of course, the conveyor line 3 can also be a continuous conveyor line.

[0109] like Figure 2 As shown, optionally, in order to enable the carrier 21 to lift the battery cells out of the conveyor line 3, the carrier 21 is further provided with an avoidance groove 214 for avoiding the conveyor line 3. When the carrier 21 is driven by the carrier drive module 23 to rise toward the conveyor line 3, the conveyor line 3 sinks into the avoidance groove 214, thereby allowing the battery cells on the conveyor line 3 to transfer to the carrier 21.

[0110] like Figure 4As shown, optionally, the carrier platform driving module 23 includes a translation driving module 231 and a lifting driving module 232, wherein: the lifting driving module 232 is connected to the movable part of the translation driving module 231, and the carrier platform 21 is connected to the movable part of the lifting driving module 232, the translation driving module 231 is used to drive the carrier platform 21 to translate, and the lifting driving module 232 is used to drive the carrier platform 21 to lift and lower.

[0111] Through the cooperation of the translation drive module 231 and the lifting drive module 232, the carrier platform drive module 23 can drive the carrier platform 21 to translate and lift, so that the carrier platform 21 can lift the battery cells from the conveyor line 3 and move the battery cells to the bottom of the front power-on mechanism 1. After the battery cells are optimized, they are placed back on the conveyor line 3.

[0112] Both the translation drive module 231 and the lifting drive module 232 can adopt various existing linear drive modules, such as a linear drive module composed of a motor, a lead screw, and a lead screw nut.

[0113] In order to improve processing efficiency, Figure 1 As shown, the cell optimization device in the embodiment of the present application is provided with two front-side power-on mechanisms 1 and two corresponding laser processing mechanisms 4 side by side, and correspondingly, two conveyor lines 3 are also provided.

[0114] The two conveyor lines 3 convey two battery cells synchronously, in order to be able to synchronously lift the two battery cells out of the two conveyor lines 3, and synchronously transport the lifted two battery cells to the bottom of the two front power-on mechanisms 1, so as to complete the synchronous optimization processing of the two battery cells. Figure 1 and Figure 4 As shown, the cell optimization device in the embodiment of the present application is provided with three sets of supporting mechanisms 2. One set of supporting mechanisms 2 is arranged in the middle, and the other two sets of supporting mechanisms 2 are arranged on both sides. The supporting mechanism 2 in the middle position has two supporting platforms 21, while the two supporting mechanisms 2 on both sides have only one supporting platform 21.

[0115] The carrying mechanism 2 at the middle position and the two carrying mechanisms 2 on both sides alternately lift two batteries from the two conveyor lines 3 and transport the two lifted batteries to the bottom of the front power-on mechanism 1, and alternately put the two battery cells that have completed the optimization process back to the two conveyor lines 3 respectively.

[0116] That is, the carrying mechanism 2 in the middle position can lift two batteries from the two conveyor lines 3 each time, remove two battery cells, and transport the two battery cells to the bottom of the front power-on mechanism 1. The two carrying mechanisms 2 on the sides must cooperate to lift two batteries from the two conveyor lines 3, remove two battery cells, and transport the two battery cells to the bottom of the front power-on mechanism 1. Of course, in other optional embodiments, to save equipment costs, only the carrying mechanism 2 in the middle position can be provided, or only the two carrying mechanisms 2 on the sides can be provided.

[0117] like Figure 6 As shown, the cell optimization device in the embodiment of the present application optionally further includes a UVW adjustment module 5, and the mounting frame 11 of the front power-on mechanism 1 is connected to the movable part of the UVW adjustment module 5. The UVW adjustment module 5 is used to drive the mounting frame 11 to translate and rotate, thereby adjusting the horizontal position and angle of the metal wire 12 mounted on the mounting frame 11.

[0118] In addition, the cell optimization device in the embodiment of the present application further includes a camera disposed above the translation path of the carrier 21. When the carrier 21 passes under the camera (with or without pausing the conveyance) under the drive of the carrier drive module 23, the camera acquires the position information of the cell on the carrier 21 and the position information of the grid lines on the front of the cell.

[0119] After the carrier 21 is moved into position, the UVW adjustment module 5 adjusts the position and angle of the mounting frame 11 based on the position information of the cell captured by the camera, thereby ensuring that when the carrier 21 rises toward the front power-on mechanism 1, the metal wire 12 can be accurately crimped onto the fine grid lines on the front of the cell. Optionally, when the cell is in the standard position, the UVW adjustment module 5 does not need to adjust the position of the mounting frame 11.

[0120] After the metal wire 12 is crimped onto the thin grid lines on the front of the cell, the laser processing mechanism 4 performs a laser scan on the front of the cell based on the grid line position information on the front of the cell acquired by the camera. In specific implementations, the laser scanning mechanism 4 can choose to scan only the grid lines on the front of the cell, only the light-receiving portion of the front of the cell other than the grid lines, or both the grid lines and the light-receiving portion.

[0121] The present application has been described above in sufficient detail with certain specificity. Those skilled in the art will understand that the descriptions in the examples are merely illustrative, and that all modifications made without departing from the true spirit and scope of the present application are intended to be within the scope of protection of the present application. The scope of protection claimed in the present application is defined by the claims, not by the description in the examples.

Claims

1. A cell optimization device, characterized in that: The cell optimization device includes a front-side power-on mechanism, a carrying mechanism, a power module, and a laser processing mechanism, wherein: The front power-on mechanism includes a mounting frame and a plurality of metal wires, wherein the plurality of metal wires are arranged side by side and spaced apart on the mounting frame; The carrying mechanism includes a carrying platform, a conductive sheet is provided on the carrying platform, and the carrying platform is used to carry the battery cell, and the gate line on the back of the battery cell is in contact with the conductive sheet; The plurality of metal wires are used for crimping the thin grid lines on the front surface of the battery cell on the supporting platform; The first electrode of the power module is electrically connected to the plurality of metal wires, the second electrode of the power module is electrically connected to the conductive sheet, and the power module is used to apply voltage to the battery cell via the plurality of metal wires and the conductive sheet; The laser processing mechanism is arranged above the front power-on mechanism, and is used to perform laser scanning on the front surface of the battery cell.

2. The cell optimization device according to claim 1, wherein: The front power-on mechanism further includes a first support row and a second support row, wherein: The two ends of the first support row are respectively connected to the first ends of the two opposite side frames of the installation frame, and the two ends of the second support row are respectively connected to the second ends of the two opposite side frames of the installation frame; The first end of the metal wire is connected to the first support row, and the second end of the metal wire is connected to the second support row.

3. The cell optimization device according to claim 2, wherein: The front power-on mechanism further includes a plurality of first winding racks and a plurality of second winding racks corresponding to the metal wires one by one, wherein: A plurality of the first winding frames are arranged on the first support row at intervals, and a plurality of the second winding frames are arranged on the second support row at intervals 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.

4. The cell optimization device according to claim 3, wherein: The first winding frame and the second winding frame have the same structure. The first winding frame includes a first upper frame, a first lower frame, a first bearing and a first spool, wherein: The first upper frame is connected to the first support row, and the first lower frame is connected to the first upper frame; The outer ring of the first bearing is fixedly arranged on the lower frame body, the inner ring of the first bearing is fixedly connected to the first spool, and the first end of the metal wire is fixedly connected to the first spool.

5. The cell optimization device according to claim 4, wherein: The first lower frame is rotatably connected to the first upper frame via a rotating shaft; The first winding frame also includes a first spring arranged in a vertical direction. The first spring is located on a side of the rotating shaft close to the second winding frame. The upper end of the first spring abuts against the first upper frame body, and the lower end of the first spring abuts against the first lower frame body.

6. The cell optimization device according to claim 4, wherein: The first wrapping frame further includes a roller seat, a roller, a first bolt and a second spring, wherein: The rod of the first bolt is accommodated in the through hole at the bottom of the first lower frame body, the second spring is sleeved on the first bolt extending in the horizontal direction, the second spring is located on the first side of the first lower frame body, the first end of the second spring abuts against the nut at the second end of the first bolt, and the second end of the second spring abuts against the surface of the first side of the first lower frame body; The roller seat is located on a second side of the first lower frame body opposite to the first side, the roller seat is fixedly connected to the first end of the first bolt, and the roller is mounted on the roller seat; The second end of the metal wire is passed downward around the roller and then connected to the second winding frame.

7. The cell optimization device according to claim 2, wherein: The front power-on mechanism further includes a plurality of pressing wires, which are arranged side by side and spaced apart on the mounting frame and located above the metal wire, and the pressing wires are perpendicular to the metal wire; or at least part of the pressing wires are arranged perpendicular to the metal wire; or at least two groups of pressing wires symmetrically press the metal wire, and each group of pressing wires includes at least one pressing wire; The pressing wire presses the metal wire downwardly against the front surface of the battery cell.

8. The cell optimization device according to claim 7, wherein: The front power-on mechanism further includes a third support row and a fourth support row, wherein both ends of the third support row are connected to the first ends of the other two opposite frames of the installation frame, and both ends of the fourth support row are respectively connected to the second ends of the other two opposite frames of the installation frame; The first end of the pressing wire is connected to the third support row, and the second end of the pressing wire is connected to the fourth support row.

9. The cell optimization device according to claim 8, wherein: The front power-on mechanism further includes a plurality of third winding racks and a plurality of fourth winding racks corresponding to the pressing wires one by one, wherein: A plurality of the third winding frames are arranged at intervals on the third support row, and a plurality of the fourth winding frames are arranged at intervals on the fourth support row and correspond one to one with the third winding frames; The first end of the pressing wire is wound around the corresponding third winding frame, and the second end of the pressing wire is wound around the corresponding fourth winding frame.

10. The cell optimization device according to claim 9, wherein: The third winding frame has the same structure as the fourth winding frame and is symmetrically arranged one by one. The third winding frame includes a second upper frame body, a second lower frame body, a second bolt, a guide rod, a third spring, a second bearing and a second spool, wherein; The second upper frame is connected to the third support row, and the second upper frame includes a vertical plate and a first mounting plate and a second mounting plate perpendicular to the vertical plate and arranged parallel to each other, and the second mounting plate is provided with a vertical through hole; The first end of the second bolt passes through the vertical through hole of the second mounting plate and is screwed to the upper end of the second lower frame body, and the nut of the second end of the second bolt is located on the lower end surface of the second mounting plate; The upper end and the lower end of the guide rod are respectively fixed to the first mounting plate and the second mounting plate; The third spring is sleeved on the guide rod, the upper end of the third spring abuts against the upper end of the second lower frame, and the lower end of the third spring abuts against the second mounting plate; The outer ring of the second bearing is fixedly arranged at the lower end of the second lower frame body, the second spool is fixedly installed on the inner ring of the second bearing, and the first end of the pressing thread is fixedly connected to the second spool.

11. The cell optimization device according to claim 7, wherein: The first electrode of the power module is electrically connected to a plurality of the pressing wires.

12. The cell optimization device according to claim 1, wherein: The supporting platform includes a mounting seat and an insulating plate, wherein: The insulating plate is arranged on the mounting seat, a hollow area is provided in the middle of the insulating plate, the conductive sheet is embedded in the hollow area, and the upper surface of the insulating plate and the upper surface of the conductive sheet are located on the same horizontal plane to form a bearing surface of the bearing platform; An exhaust pipe connected to an exhaust device is provided in the mounting seat, and an adsorption hole connected to the exhaust pipe is also provided on the conductive sheet. The exhaust device exhausts air from the adsorption hole through the exhaust pipe so that the adsorption hole generates adsorption force.

13. The cell optimization device according to claim 12, wherein: The insulation plate is provided with downwardly inclined pressing surfaces at both side edges close to both ends of the metal wire.

14. The cell optimization device according to claim 1, wherein: The battery cell optimization device further includes a conveyor line, and the carrying mechanism further includes a carrying platform drive module; The conveyor line is used to convey the battery cells to be processed to the lifting station; The carrier is connected to the movable part of the carrier drive module, and the carrier drive module is used to drive the carrier to move horizontally to the bottom of the lifting station and drive the carrier to lift the battery cell out of the conveyor line; The carrier platform driving module is further used to drive the carrier platform to translate to the bottom of the front power-on mechanism, and to drive the carrier platform to rise toward the front power-on mechanism, so that the plurality of metal wires are crimped onto the fine grid lines on the front surface of the battery cell located on the carrier platform; The carrier platform driving module is further used to drive the carrier platform to descend so as to place the battery cell that has completed the optimization process back onto the conveyor line; The conveyor line is also used to output the battery cells that have completed the optimization process to the subsequent workstations.

15. The cell optimization device according to claim 14, wherein: The cell optimization device further includes a UVW adjustment module and a camera arranged above the translation path of the carrier platform. The mounting frame of the front power-on mechanism is connected to the movable part of the UVW adjustment module; The camera is used to obtain the position information of the battery cell located on the supporting platform and the grid line position information on the front of the battery cell. The UVW adjustment module is used to adjust the installation frame according to the position information of the battery cell obtained by the camera. The laser processing mechanism performs laser scanning on the front of the battery cell based on the grid line position information on the front of the battery cell obtained by the camera.

16. The cell optimization device according to claim 14, wherein: The platform drive module includes a translation drive module and a lifting drive module, wherein: The lifting drive module is connected to the movable part of the translation drive module, and the supporting platform is connected to the movable part of the lifting drive module. The translation drive module is used to drive the supporting platform to translate, and the lifting drive module is used to drive the supporting platform to lift and lower.

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