Tool transverse moving device and battery piece stringing equipment

Abstract

The utility model provides a tool transverse moving device and battery piece bunching equipment, the tool transverse moving device comprises a mounting seat, a transverse moving mechanism, a lifting mechanism and a lifting mechanism, the transverse moving mechanism is arranged at the bottom of the mounting seat; the lifting mechanism is connected to a movable part of the transverse moving mechanism; the transverse moving mechanism and the lifting mechanism are configured to be matched to drive the lifting mechanism to transversely move and ascend and descend so as to drive the lifting mechanism to lift the tool, and the tool is transversely moved by a preset distance in the first direction and then put down again. After the tool transverse moving device is adopted, in the battery string laying process, the gap between the tools on every two adjacent battery pieces is increased, the gaps are enough for containing the clamping parts of the traction device, and finally it is ensured that the battery piece string forming equipment can smoothly form the battery strings compact in structure. Besides, in the laying process of the battery string, redundant length allowance does not need to be reserved for the welding strip, so that the use amount of the welding strip is saved, and the production cost of the battery string is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of photovoltaic cell production equipment, and more specifically to a tooling transverse movement device and a cell stringing device. Background Art

[0002] When making a battery string, it is necessary to lay out the battery cells and welding ribbons on the conveyor line. The conveyor line transports the laid out battery cells and welding ribbons to the bottom of the curing device for curing to make the battery string.

[0003] Taking the example of laying solder ribbons on both the upper and lower surfaces of a cell, the traction device first lays the first set of solder ribbons onto the placement station of the conveyor line. The handling device then lays the first cell onto the rear half of the first set of solder ribbons. The traction device then lays the second set of solder ribbons onto the placement station, positioning the front half of the second set of solder ribbons on the first cell. The handling device then presses the tooling onto the front half of the second set of solder ribbons to press them onto the first cell. At the same time, the handling device lays the second cell onto the rear half of the second set of solder ribbons. After the tooling is pressed, the traction device releases the second set of solder ribbons. The conveyor belt is then controlled to step forward once, allowing the second cell to enter the placement station. The third set of solder ribbons is then laid onto the placement station again, repeating this cycle until the entire cell string is laid.

[0004] In order to prevent the solder ribbon from flipping or shifting when it falls onto the cell, starting from the second set of solder ribbons, the tooling is pressed onto the front half of the ribbon before the pulling device releases the end of the ribbon. Figure 1 and Figure 2 As shown, to prevent the tooling from contacting the traction device during the pressing and placing process, sufficient space must be left between the end of the front half of the solder ribbon 200 placed on the cell 100 and the pre-placement position of the tooling 300 to accommodate the clamping components of the traction device 30. However, some existing cell strings have compact structures, and the gap between the tooling between two adjacent cell sheets is insufficient to accommodate the clamping components of the traction device. As a result, the above-mentioned cell stringing process cannot be applied to compact cell strings. Utility Model Content

[0005] In order to solve the above technical problems, the present application provides a battery string layout and loading device, which adopts the following technical solutions:

[0006] A tooling transverse movement device includes a mounting seat, a transverse movement mechanism, a lifting mechanism, and a lifting mechanism, wherein:

[0007] The transverse movement mechanism is arranged at the bottom of the mounting seat;

[0008] The lifting mechanism is connected to the movable part of the transverse movement mechanism;

[0009] The transverse movement mechanism and the lifting mechanism are configured to cooperate to drive the lifting mechanism to move transversely and lift, so as to drive the lifting mechanism to lift the tooling, and to move the tooling transversely along the first direction for a predetermined distance and then put it down again.

[0010] The tooling transverse movement device provided in this application is capable of lifting the tooling that is pressed onto the solder ribbon and battery cells, and can laterally move the lifted tooling a predetermined distance along the length of the solder ribbon before re-pressing it onto the solder ribbon and battery cells. Therefore, during the battery string laying process, when the handling device presses the tooling onto the solder ribbon and battery cells, the distance between the tooling and the front half of the solder ribbon can be greater than the target distance. Subsequently, before the solder ribbon is cured, the tooling is laterally moved again using the tooling transverse movement device of this application to adjust the distance between the tooling and the front half of the solder ribbon to the target distance.

[0011] With the tooling traverse device provided in this application, the gap between the tooling on two adjacent cells increases during the battery string laying process. This gap is sufficient to accommodate the clamping components of the traction device, ultimately ensuring that the cell stringing equipment can smoothly string compact battery strings. In addition, during the battery string laying process, no excess length of solder ribbon is required, thus saving solder ribbon usage and reducing the production cost of the battery string.

[0012] In some embodiments, the lifting mechanism includes a mounting plate, a first lifting block and a second lifting block, wherein: the mounting plate is connected to the movable part of the lifting mechanism; the first lifting block and the second lifting block are respectively arranged at both ends of the mounting plate, and the second lifting block has the same structure as the first lifting block; the first lifting block includes a vertical connecting part and a horizontal lifting part, the upper end of the connecting part is connected to the mounting plate, and the lifting part is connected to the lower end of the connecting part, and when the lifting mechanism drives the mounting plate to rise, the lifting part lifts the workpiece; the lifting mechanism is configured to drive the mounting plate to rise to a predetermined height to drive the first lifting block and the second lifting block to lift the workpiece from both ends.

[0013] There are generally step portions at both ends of the tooling, and the lifting mechanism is arranged to consist of a mounting plate, a first lifting block and a second lifting block. The mounting plate is driven to move toward the tooling through the transverse movement mechanism, so that the lifting portions of the first lifting block and the second lifting block can be moved to the bottom of the step portions at both ends of the tooling. Then the lifting mechanism drives the mounting plate to rise, which can drive the first lifting block and the second lifting block to lift the tooling from both ends.

[0014] In some embodiments, a mounting groove is provided on the lifting portion, and a magnet for adsorbing the tooling is installed in the mounting groove.

[0015] By arranging a magnet on the lifting part, the lifted tooling is adsorbed and positioned, preventing the tooling from shifting during the lateral movement, resulting in the inability to effectively press the welding strip after the tooling is lowered again.

[0016] In some embodiments, when the transverse movement mechanism transversely moves the tooling along the first direction, the pressing portion on the tooling for pressing the welding ribbon maintains contact with the welding ribbon below.

[0017] This arrangement allows the tooling to continuously press the welding ribbon during the lateral movement, preventing the welding ribbon from shifting and deviating from the welding pad point.

[0018] In some embodiments, the tooling includes a tooling bracket and a clamping part installed on the tooling bracket, the clamping part is an elastic pressure pin, and the elastic pressure pin extends downward from the tooling bracket in a free state; in the process of the transverse movement mechanism transversely moving the tooling along the first direction, the tooling bracket is separated from the conveying surface of the conveying tooling, and the elastic pressure pin maintains contact with the corresponding welding strip.

[0019] During the battery string installation process, the handling device presses the tooling onto the solder ribbons and battery cells, causing the elastic pressure pins to contract under pressure. When the lifting mechanism lifts the tooling upward, the elastic pressure pins lose pressure and rebound, maintaining contact with the corresponding solder ribbons.

[0020] In some embodiments, the transverse movement mechanism includes a transverse slide rail, a connecting plate and a transverse movement drive module, wherein the transverse slide rail is installed at the bottom of the mounting seat along a first direction, the connecting plate is slidably connected to the transverse slide rail and is connected to the driving end of the transverse movement drive module, and the transverse movement drive module is used to drive the connecting plate to slide along the transverse slide rail; the lifting mechanism includes a vertical slide rail and a lifting drive module, wherein the vertical slide rail is installed on the connecting plate along the vertical direction, the lifting mechanism is slidably connected to the vertical slide rail and is connected to the driving end of the lifting drive module, and the lifting drive module is used to drive the lifting mechanism to lift and slide along the vertical slide rail.

[0021] By setting up the transverse movement mechanism and the lifting mechanism, it is ensured that the transverse movement mechanism and the lifting mechanism can smoothly drive the lifting mechanism to move horizontally and up and down, and prevent the lifting mechanism from deviating.

[0022] In some embodiments, the transverse drive module includes a driving motor, a driving pulley, a driven pulley and a synchronous belt, wherein: the driving pulley and the driven pulley are arranged on a mounting seat at a lateral interval, the synchronous belt is sleeved on the driving pulley and the driven pulley, the connecting plate is fixedly connected to one side of the belt body of the synchronous belt, and the driving motor drives the driving pulley to rotate to drive the synchronous belt to rotate.

[0023] A lateral drive module with a simple structure and stable drive is provided, which drives the synchronous belt to rotate through a driving motor to implement lateral drive of the lifting mechanism, ensuring that the lifting mechanism moves the tooling laterally a predetermined distance and then lowers it again.

[0024] In some embodiments, the lifting mechanism further includes a limit plate provided on the connecting plate and located above the lifting mechanism, the limit plate being used to limit the rising stroke of the lifting mechanism, and the lifting drive module is a cylinder.

[0025] The lifting stroke of the lifting mechanism is limited to prevent the lifting mechanism from having an excessively large lifting stroke, which would cause the pressing portion of the tooling to completely separate from the welding strip.

[0026] The present application also provides a battery cell stringing device, which includes a conveyor line, a traction device, a handling device, a curing device, and any of the above-mentioned tooling transverse movement devices, wherein:

[0027] The conveyor line is used to convey battery cells, welding ribbons and tooling. The conveyor line is provided with a laying station, a traverse station and a curing station in sequence along the conveying path in the first direction;

[0028] The pulling device is configured to clamp the end of the solder ribbon and lay the first half of the solder ribbon onto the battery cell at the laying station, and lay the second half of the solder ribbon onto the conveyor line;

[0029] The handling device is configured to press the tooling to a first position on the front half of the welding ribbon, and the pulling device is configured to release the end of the welding ribbon;

[0030] The handling device is further configured to place the next cell onto the second half of the ribbon;

[0031] The conveyor line is configured to convey in a forward stepping manner so that a cell at a placement station moves forward while the next cell moves to the placement station;

[0032] The tooling transverse moving device is located above the transverse moving station and is configured to move the tooling on the battery cell located at the transverse moving station transversely by a predetermined distance along the conveying direction of the conveyor line and then press the tooling back to the second position on the front half of the soldering ribbon;

[0033] The distance between the tooling located at the first position and the end of the front half of the welding strip is greater than the distance between the tooling located at the second position and the end of the front half of the welding strip;

[0034] The curing device is located above the curing station and is configured to fix the solder strip located at the curing station to the corresponding battery cell.

[0035] In the cell stringing equipment provided herein, during the cell string laying process, when the handling device presses the tooling onto the solder ribbon and cell, the distance between the tooling and the front end of the solder ribbon can be greater than the target distance. When the tooling is transported to the curing station, the curing device moves the tooling laterally to adjust the distance between the tooling and the front end of the solder ribbon to the target distance, thereby ensuring that the solder ribbon is cured on the corresponding cell as required.

[0036] When using the cell stringing equipment of this application, the gap between the tooling on two adjacent cells increases during the cell string laying process. This gap is sufficient to accommodate the clamping components of the traction device, ultimately ensuring that the cell stringing equipment can smoothly string compact cell strings. In addition, during the cell string laying process, there is no need to leave excess length margin for the welding ribbon, thus saving welding ribbon and reducing the production cost of the cell string. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a schematic diagram of the state in which a traction device in the prior art lays a welding ribbon onto a battery cell;

[0038] Figure 2 This is a schematic diagram of the state in which the electric handling device in the prior art places the tooling onto the battery cell and the welding ribbon;

[0039] Figure 3 This is a schematic structural diagram of the tooling transverse movement device in an embodiment of the present application from one viewing angle;

[0040] Figure 4 This is a schematic structural diagram of the tooling transverse movement device in an embodiment of the present application from another perspective;

[0041] Figure 5 This is a schematic structural diagram of the tooling transverse movement device without the mounting base in an embodiment of the present application;

[0042] Figure 6 This is a schematic structural diagram of the first lifting block in an embodiment of the present application;

[0043] Figure 7 A schematic diagram of a battery cell stringing process according to an embodiment of the present application;

[0044] Figure 8 This is a schematic diagram of a state in which a traction device lays a solder ribbon onto a battery cell in an embodiment of the present application;

[0045] Figure 9 This is a schematic diagram of the state in which the handling device places the tooling on the battery cell and the welding ribbon in the embodiment of the present application;

[0046] Figure 10 This is a schematic diagram of the state in which the horizontal shifting device in the embodiment of the present application puts the tooling back onto the battery cell and the welding ribbon after completing the horizontal shift.

[0047] Figures 1 to 10 Included are:

[0048] Tooling traverse device 10:

[0049] Mounting seat 1;

[0050] Transverse movement mechanism 2: transverse slide rail 21, connecting plate 22, transverse movement drive module 23, drive motor 231, driving pulley 232, driven pulley 233, synchronous belt 234;

[0051] Lifting mechanism 3: vertical slide rail 31, lifting drive module 32, limit plate 33;

[0052] Lifting mechanism 4: mounting plate 41, first lifting block 42, second lifting block 43, connecting portion 421, water lifting portion 422, mounting groove 423;

[0053] Conveyor line 20;

[0054] Traction device 30;

[0055] a transport device 40;

[0056] Curing device 50;

[0057] Battery cell 100, first battery cell 100-1, second battery cell 100-2, third battery cell 100-3;

[0058] Welding ribbon 200, first group welding ribbon 200-1, second group welding ribbon 200-2, third group welding ribbon 200-3, fourth group welding ribbon 200-4;

[0059] The jig 300 , the step portion 301 , the first jig 300 - 1 , and the second jig 300 - 2 . DETAILED DESCRIPTION

[0060] 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.

[0061] like Figures 3 to 5 As shown, the tooling transverse movement device 10 in the embodiment of the present application includes a mounting base 1, a transverse movement mechanism 2, a lifting mechanism 3 and a lifting mechanism 4, wherein:

[0062] The transverse movement mechanism 2 is arranged at the bottom of the mounting seat 1 .

[0063] The lifting mechanism 3 is connected to the movable part of the transverse movement mechanism 2.

[0064] The transverse movement mechanism 2 and the lifting mechanism 3 are configured to cooperate to drive the lifting mechanism 4 to move transversely and lift, so as to drive the lifting mechanism 4 to lift the tooling, and to move the tooling transversely along a first direction (such as the X direction) for a predetermined distance and then lower it back down.

[0065] The tooling transverse movement device 10 provided in the embodiment of the present application can lift the tooling that is pressed onto the soldering ribbon and the battery cell, and can move the lifted tooling transversely a predetermined distance along the first direction (i.e., the length direction of the soldering ribbon) and then press it back onto the soldering ribbon and the battery cell.

[0066] like Figures 8 to 10 As shown, during the laying of the battery string, when the handling device presses the tooling 300 onto the welding ribbon 200 and the battery cell 100, the distance D between the tooling 300 and the end of the front half of the welding ribbon 200 is greater than the target distance d, so that the distance between the currently placed tooling 300 and the previous tooling 300 can accommodate the clamping parts of the traction device 30, preventing the tooling 300 from contacting the traction device 30.

[0067] like Figure 10 As shown, before the soldering ribbon is solidified, the tooling 300 is laterally moved by the tooling transverse movement device 10 in the embodiment of the present application to adjust the distance between the tooling 300 and the front half end of the soldering ribbon 200 to the target distance d, ensuring that the tooling 300 can press the front half of the soldering ribbon 200 onto the corresponding solder pad point on the upper surface of the battery cell, thereby ultimately ensuring the quality of the battery string.

[0068] It can be seen that after adopting the tooling transverse movement device 10 provided in the embodiment of the present application, the gap between the tooling 300 on two adjacent battery cells 100 is increased during the battery string laying process, so that the gap between the tooling 300 on the two adjacent battery cells 100 can accommodate the clamping components of the traction device 30, ultimately ensuring the smooth stringing of a compact battery string. In addition, during the battery string laying process, the welding ribbon 200 does not need to leave a long excess length, thereby saving welding ribbon and reducing the production cost of the battery string.

[0069] Optional, such as Figure 3 and Figure 5 As shown, the lifting mechanism 4 includes a mounting plate 41, a first lifting block 42, and a second lifting block 43, wherein the mounting plate 41 is connected to the movable component of the lifting mechanism 3. The first lifting block 42 and the second lifting block 43 are respectively arranged at the two ends of the mounting plate 41, and the second lifting block 43 has the same structure as the first lifting block 42. Taking the first lifting block 42 as an example, it includes a vertical connecting portion 421 and a horizontal lifting portion 422. The upper end of the connecting portion 421 is connected to the mounting plate 41, and the lifting portion 422 is connected to the lower end of the connecting portion 421. When the lifting mechanism 3 drives the mounting plate 41 to rise, the lifting portion 422 lifts the tooling 300.

[0070] like Figure 3 and Figure 4As shown, the tooling 300 is generally provided with stepped portions 301 at both ends. The traverse mechanism 22 drives the mounting plate 41 to translate in a first direction toward the tooling 300, allowing the lifting portions 422 of the first and second lifting blocks 42, 43 to move below the stepped portions 301 at both ends of the tooling 300. Subsequently, the lifting mechanism 3 drives the mounting plate 41 to rise to a predetermined height, thereby driving the first and second lifting blocks 42, 43 to lift the tooling 300 from both ends. Of course, to ensure that the lifting portions 422 can move below the stepped portions 301 at both ends of the tooling 300, the thickness of the lifting portions 422 must be less than the height of the stepped portions 301.

[0071] like Figure 6 As shown, the lifting portion 422 is optionally provided with a mounting slot 423, within which a magnet for attracting the tooling is mounted. The magnet may be a ferromagnetic material, an electromagnet, or other material capable of magnetically attracting the tooling. The provision of the magnet on the lifting portion 422 ensures the attraction and positioning of the raised tooling, preventing the tooling from shifting during lateral movement, which could result in the tooling being unable to effectively press the welding ribbon when it is lowered.

[0072] Optionally, during the process of the traversing mechanism 2 traversing the tooling along the first direction, the pressing portion of the tooling for pressing the solder ribbon maintains contact with the underlying solder ribbon. This arrangement enables the tooling to continuously press the solder ribbon during the traversing process, thereby preventing the solder ribbon from shifting and deviating from the solder pads on the cell.

[0073] Optionally, the tooling includes a tooling bracket and a pressing portion mounted on the tooling bracket, wherein the pressing portion is an elastic pressing pin that extends downward from the tooling bracket in a free state. When the traverse mechanism 2 traverses the tooling along the first direction, the tooling bracket is separated from the conveying surface (e.g., a conveyor line) of the tooling, and the elastic pressing pin maintains contact with the corresponding welding ribbon.

[0074] Because the clamping portion of the tooling is an elastic pressure pin, during the battery string installation process, when the handling device presses the tooling onto the solder ribbon and battery cells, the elastic pressure pin compresses the solder ribbon onto the battery cells, causing the elastic pressure pin to contract under pressure. When the lifting mechanism 4 lifts the tooling upward, the elastic pressure pin loses pressure and rebounds, extending downward, thereby maintaining contact with the corresponding solder ribbon and ensuring that the solder ribbon is continuously positioned on the solder pad.

[0075] like Figure 5As shown, optionally, the transverse mechanism 2 includes a transverse slide rail 21, a connecting plate 22, and a transverse drive module 23, wherein the transverse slide rail 21 is mounted on the bottom of the mounting seat along a first direction, the connecting plate 22 is slidably connected to the transverse slide rail 21 and is connected to the driving end of the transverse drive module 23, and the transverse drive module 23 is used to drive the connecting plate 22 to slide along the transverse slide rail 21. The lifting mechanism 3 includes a vertical slide rail 31 and a lifting drive module 32, wherein the vertical slide rail 31 is mounted on the connecting plate 22 in the vertical direction, the lifting mechanism 4 is slidably connected to the vertical slide rail 31 and is connected to the driving end of the lifting drive module 32, and the lifting drive module 32 is used to drive the lifting mechanism 4 to slide and rise along the vertical slide rail 31.

[0076] By setting the transverse movement mechanism 2 and the lifting mechanism 3, it is ensured that the transverse movement mechanism 2 and the lifting mechanism 3 can stably drive the lifting mechanism 4 to move transversely and lift up and down, and prevent the lifting mechanism 4 from deviating.

[0077] Optionally, the transverse drive module 23 includes a drive motor 231, a driving pulley 232, a driven pulley 233, and a synchronous belt 234, wherein the driving pulley 232 and the driven pulley 233 are arranged on the mounting base 1 at intervals along the transverse direction, the synchronous belt 234 is sleeved on the driving pulley 232 and the driven pulley 233, the connecting plate 22 is fixedly connected to one side of the belt body (for example, the lower side belt body) of the synchronous belt 234, the drive motor 231 drives the driving pulley 232 to rotate to drive the synchronous belt 234 to rotate, and when the synchronous belt 234 rotates, it drives the connecting plate 22 to slide along the transverse slide rail 21. Of course, the transverse drive module 23 can also adopt an existing linear drive module of other structures, as long as it can drive the connecting plate 22 to slide along the transverse slide rail 21.

[0078] The lifting drive module 32 can adopt various existing linear drive modules that can drive the lifting mechanism 4 to lift and slide along the vertical slide rail 31, such as a cylinder, a screw motor, etc.

[0079] like Figure 5 As shown, optionally, the lifting mechanism 3 also includes a limit plate 33 arranged on the connecting plate 22 and located above the lifting mechanism 4. The limit plate 33 is used to limit the rising stroke of the lifting mechanism 4 to ensure that the lifting mechanism 4 stops after lifting the tooling to a predetermined height, thereby preventing the tooling from rising too far and causing the clamping part on the tooling to detach from the welding strip.

[0080] Based on the same technical concept, the embodiment of the present application also provides a battery cell stringing device, which is used to implement the curing stringing of battery cells and solder strips. Figure 7 As shown, the cell stringing equipment in the embodiment of the present application includes a conveyor line 20, a traction device 30, a handling device 40, a curing device 50 and a tooling lateral movement device 10 in any of the above embodiments, wherein:

[0081] The conveyor line 20 is used to convey battery cells, welding strips and tooling. A laying station A, a transverse movement station B and a curing station C are sequentially arranged on the conveying path of the conveyor line 20 along the first direction.

[0082] The traction device 30 is configured to clamp the end of the welding ribbon and lay the first half of the welding ribbon on the battery cell located at the laying station A, and lay the second half of the welding ribbon on the conveyor line 20 .

[0083] The handling device 40 is configured to press the tool to a first position on the front half of the welding ribbon, and the pulling device 30 is configured to release the end of the welding ribbon.

[0084] The transport device 40 is further configured to place the next solar cell onto the second half of the solder ribbon.

[0085] The conveyor line 20 is configured to convey in a forward stepping manner so that the battery cell at the placement station A moves forward while the next battery cell moves to the placement station A.

[0086] The tooling transverse moving device 10 is located above the transverse moving station B. The tooling transverse moving device 10 is configured to move the tooling on the battery cell located at the transverse moving station B transversely a predetermined distance along the conveying direction of the conveyor line 20 and then press the tooling 300 back to the second position on the front half of the welding strip.

[0087] The distance between the tooling located at the first position and the end of the front half of the welding strip is greater than the distance between the tooling located at the second position and the end of the front half of the welding strip.

[0088] The curing device 50 is located above the curing station C. The curing device 50 is configured to fix the solder ribbon 200 located at the curing station C to the corresponding battery cell 100 .

[0089] The cell stringing equipment provided in this application is used to string the cells together. During the string laying process, when the handling device 40 presses the tooling onto the soldering ribbon and cells, the distance between the tooling 300 and the front end of the soldering ribbon is set to be greater than the target distance. When the tooling is transported to the transverse shifting station B, the tooling transverse shifting device 10 further adjusts the tooling 300 transversely, thereby adjusting the distance between the tooling 300 and the front end of the soldering ribbon 200 to the target distance. This ensures that the tooling can press the front end of the soldering ribbon onto the corresponding solder pads on the top surface of the cell, ultimately ensuring the stringing quality of the cell.

[0090] During the laying process of the battery string, the gap between the tooling 300 on two adjacent battery cells 100 increases, so that the gap between the tooling 300 on two adjacent battery cells 100 is sufficient to accommodate the clamping parts of the traction device 30, ultimately ensuring that the battery cell stringing equipment provided in this application can achieve the solidification of compact battery strings.

[0091] The traction device 30 can adopt various existing devices that can lay welding strips. For example, the traction device 30 includes a moving mechanism and a clamping component arranged on the driving end of the moving mechanism. The moving mechanism is used to drive the clamping component to move, so as to drive the clamping component to clamp the end of the welding strip to be laid, and then lay the welding strip on the battery cell and the conveyor line 20 at the laying station A.

[0092] The transport device 40 can adopt various devices that can transport battery cells and tooling. For example, the transport device 40 includes a moving mechanism and a suction cup assembly and a magnetic assembly arranged side by side on the driving end of the moving mechanism. The moving mechanism is used to drive the suction cup assembly and the magnetic assembly to move synchronously, so as to drive the suction cup assembly to absorb the battery cells and transport the battery cells to the conveyor line 20, and drive the magnetic assembly to absorb the tooling and press the tooling onto the corresponding battery cells.

[0093] The curing device 50 may be an infrared light box, an LED light box, a laser welding device, or the like, which can cure the solder ribbon onto the battery cell.

[0094] Based on the same technical concept, the embodiment of the present application also provides a method for stringing together solar cells, which is used to implement the curing of solar cells and solder strips. The method for stringing together solar cells in the embodiment of the present application includes:

[0095] Clamp the end of the i-th group of welding ribbons and pull the front half of the i-th group of welding ribbons along the first direction to the i-1-th solar cell, where i is a natural number.

[0096] Place the i-1th tooling on the front half of the i-th group of welding ribbons and the i-1th battery cell. The i-1th tooling presses the front half of the i-th group of welding ribbons against the upper surface of the i-1th battery cell. At this time, the distance from the front end surface of the i-1th tooling along the first direction to the front end surface of the i-1th battery cell along the first direction is the first distance.

[0097] Place the i-th battery cell on the second half of the i-th group of welding ribbons.

[0098] The i-th group of welding ribbons, the i-1-th tooling, the i-1-th battery cell and the i-th battery cell are conveyed forward along a first direction.

[0099] Lift and drive the i-1th tooling to move forward along the first direction relative to the i-1th battery cell and the i-th group of welding strips, so that the distance from the front end surface of the i-1th tooling along the first direction to the front end surface of the i-1th battery cell along the first direction is adjusted to a second distance, and the second distance is smaller than the first distance.

[0100] During the battery string assembly process, the gap between the fixtures on adjacent cells increases, allowing the gap between the fixtures on adjacent cells to accommodate the clamping components of the traction device, ultimately ensuring the smooth assembly of compact battery strings. Furthermore, during the battery string assembly process, no excess solder ribbon length is required, saving on solder ribbon usage and reducing battery string production costs.

[0101] The battery cell stringing method in the embodiment of the present application can be implemented by the battery string laying equipment in the embodiment described above. In order to enable those skilled in the art to more clearly understand the technical solution of the battery cell stringing method in the embodiment of the present application, the following will be combined with Figure 7 , an exemplary description is given of the implementation process of the battery cell stringing method in the embodiment of the present application.

[0102] For the sake of simplicity, it is assumed that the target battery string to be obtained is formed by only three battery cells connected in series. Of course, the number of battery cells included in the actual production battery string may be much more than three.

[0103] First, the traction device 30 clamps the end of the first set of welding ribbons 200-1 and lays the first set of welding ribbons 200-1 onto the conveyor line 20, with the second half of the first set of welding ribbons 200-1 located at the laying station A. Subsequently, the handling device 40 places the first cell 100-1 onto the second half of the first set of welding ribbons 200-1.

[0104] Then, if Figure 7 As shown in (a) of FIG. 1 , the pulling device 30 clamps the end of the second group of welding ribbons 200 - 2 and pulls the front half of the second group of welding ribbons 200 - 2 onto the first battery cell 100 - 1 along the first direction.

[0105] Then, if Figure 7 As shown in (b) of the figure, the handling device 40 places the first tool 300-1 on the front half of the second set of welding ribbons 200-2 and the first cell 100-1, so that the first tool 300-1 presses the front half of the second set of welding ribbons 200-2 against the upper surface of the first cell 100-1. At this time, the distance between the front end of the first tool 300-1 along the first direction and the front end of the first cell 100-1 along the first direction is the larger first distance. Simultaneously, the handling device 40 places the second cell 100-2 on the rear half of the second set of welding ribbons 200-2. The pulling device 30 releases the end of the second set of welding ribbons 200-2.

[0106] Then, if Figure 7As shown in (c), the conveyor line 20 advances forward, allowing the first cell 100-1 and the first tooling 300-1 thereon to arrive at the transverse shifting station B, while the second cell 100-2 arrives at the placement station A. The tooling transverse shifting device 10 lifts and drives the first tooling 300-1 forward in a first direction relative to the first cell 100-1 and the second set of welding ribbons 200-2, adjusting the distance from the front end of the first tooling 300-1 along the first direction to the front end of the first cell 100-1 along the first direction to a smaller second distance, thereby ensuring that the placement position of the first tooling 300-1 meets the curing requirements. Simultaneously, the traction device 30 clamps the end of the third set of welding ribbons 200-3 and tractions the front half of the third set of welding ribbons 200-3 along the first direction onto the second cell 100-2.

[0107] Subsequently, the handling device 40 places the second tool 300-2 onto the front half of the third set of welding ribbons 200-3 and the second cell 102, such that the second tool 300-3 presses the front half of the third set of welding ribbons 200-3 against the upper surface of the second cell 100-2. At this point, the distance between the front end of the second tool 300-2 along the first direction and the front end of the second cell 100-2 along the first direction is the larger first distance. Simultaneously, the handling device 40 places the third cell 100-3 onto the rear half of the third set of welding ribbons 200-3. The traction device 30 releases the end of the third set of welding ribbons 200-3.

[0108] Then, if Figure 7 As shown in (d), the conveyor line 20 moves forward step by step, so that the second battery cell 100-2 and the second tooling 300-2 thereon arrive at the transverse shifting station B, and the third battery cell 100-3 arrives at the placement station A.

[0109] The tooling traverse device 10 elevates and drives the second tooling 300-2 forward in the first direction relative to the second cell 100-2 and the third set of solder ribbons 200-3, adjusting the distance between the front end of the second tooling 300-2 in the first direction and the front end of the second cell in the first direction to a smaller second distance, thereby ensuring that the placement of the second tooling 300-2 meets the curing requirements. Simultaneously, the traction device 30 clamps the end of the fourth set of solder ribbons 200-4 and tractions the front half of the fourth set of solder ribbons 200-4 in the first direction onto the third cell 100-3.

[0110] It can be seen that when the handling device 40 places the second adjacent tooling on the solder ribbon and solar cell, the first tooling has already been moved forward by the tooling transverse movement device 10. This increases the spacing between the second tooling and the first tooling when compared to existing tooling placement methods, ensuring that the gap between the two tools is sufficient to accommodate the clamping components of the traction device 30, and that the second tooling does not contact the clamping components of the traction device 30 when placed.

[0111] Optionally, when the (i-1)th tool is lifted and driven forward in the first direction relative to the (i-1)th cell and the (i)th set of solder ribbons, the (i-1)th tool always presses the (i)th set of solder ribbons against the (i-1)th cell. This allows the tool to continuously press the solder ribbons during the lateral movement, preventing the solder ribbons from shifting.

[0112] For example, Figure 7 In this embodiment, when the tooling transverse movement device 10 lifts and drives the first tooling 300-1 forward in the first direction relative to the first cell 100-1 and the second set of welding ribbons 200-2, the first tooling 300-1 always presses the second set of welding ribbons 200-2 against the first cell 100-1. When the tooling transverse movement device 10 lifts and drives the second tooling 300-2 forward in the first direction relative to the second cell 100-2 and the third set of welding ribbons 200-3, the second tooling 300-2 always presses the third set of welding ribbons 200-3 against the second cell 100-2.

[0113] Optionally, the cell stringing method in the example of the present application clamps the end of the i-th group of welding ribbons by a traction device and pulls the front half of the i-th group of welding ribbons along the first direction to the i-1th cell. In particular, when the distance from the front end face of the i-1th fixture along the first direction to the front end face of the i-1th cell along the first direction is a first distance, the spacing between the i-1th fixture and the i-2nd fixture is greater than the size of the clamping component of the traction device along the first direction. When the distance from the front end face of the i-1th fixture along the first direction to the front end face of the i-1th cell along the first direction is a second distance, the spacing between the i-1th fixture and the i-2nd fixture is less than the size of the clamping component of the traction device along the first direction.

[0114] This arrangement ensures that when the current tool is placed, the gap between it and the previous tool can accommodate the clamping parts of the traction device. Figure 7 In the embodiment, when the distance from the front end surface of the second tooling along the first direction to the front end surface of the second battery cell along the first direction is the first distance, that is, when the second tooling is placed on the first battery cell, the distance between the second tooling and the first tooling is greater than the size of the clamping part of the traction device 30 along the first direction.

[0115] The above description of the present application is sufficiently detailed and has certain particularities. Those skilled in the art should understand that the descriptions in the embodiments are merely exemplary, and that 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, not by the above description in the embodiments. Furthermore, the embodiments mentioned in the present application are not limited to being implemented individually, and some embodiments can also be implemented in combination.

Claims

1. A tooling lateral movement device, characterized in that: The tooling transverse movement device includes a mounting seat, a transverse movement mechanism, a lifting mechanism and a lifting mechanism, wherein: The transverse movement mechanism is arranged at the bottom of the mounting seat; The lifting mechanism is connected to the movable component of the transverse movement mechanism; The transverse movement mechanism and the lifting mechanism are configured to cooperate to drive the lifting mechanism to move transversely and lift, so as to drive the lifting mechanism to lift the tooling, and to move the tooling transversely along the first direction for a predetermined distance and then put it down again.

2. The tooling traverse device according to claim 1, characterized in that: The lifting mechanism includes a mounting plate, a first lifting block and a second lifting block, wherein: The mounting plate is connected to the movable component of the lifting mechanism; The first lifting block and the second lifting block are respectively arranged at two ends of the mounting plate, and the second lifting block has the same structure as the first lifting block; The first lifting block includes a vertical connecting portion and a horizontal lifting portion, the upper end of the connecting portion is connected to the mounting plate, and the lifting portion is connected to the lower end of the connecting portion. When the lifting mechanism drives the mounting plate to rise, the lifting portion lifts the tooling; The lifting mechanism is configured to drive the mounting plate to rise to a predetermined height, so as to drive the first lifting block and the second lifting block to lift the tooling from both ends.

3. The tooling traverse device according to claim 2, characterized in that: The lifting portion is provided with a mounting groove, in which a magnet for adsorbing tooling is installed.

4. The tooling traverse device according to claim 1, characterized in that: During the process of the transverse movement mechanism transversely moving the tooling along the first direction, the pressing portion on the tooling for pressing the welding ribbon maintains contact with the welding ribbon below.

5. The tooling traverse device according to claim 4, characterized in that: The tooling includes a tooling bracket and a pressing portion mounted on the tooling bracket, wherein the pressing portion is an elastic pressing pin, and the elastic pressing pin extends downward from the tooling bracket in a free state; During the process of the transverse movement mechanism transversely moving the tooling along the first direction, the tooling bracket is separated from the conveying surface of the conveying tooling, and the elastic pressing pin maintains contact with the corresponding welding ribbon.

6. The tooling lateral movement device according to claim 1, characterized in that: The transverse movement mechanism includes a transverse slide rail, a connecting plate, and a transverse movement driving module, wherein the transverse slide rail is mounted on the bottom of the mounting seat along the first direction, the connecting plate is slidably connected to the transverse slide rail and is connected to the driving end of the transverse movement driving module, and the transverse movement driving module is used to drive the connecting plate to slide along the transverse slide rail; The lifting mechanism includes a vertical slide rail and a lifting drive module, wherein the vertical slide rail is installed on the connecting plate in the vertical direction, the lifting mechanism is slidably connected to the vertical slide rail and connected to the driving end of the lifting drive module, and the lifting drive module is used to drive the lifting mechanism to slide and lift along the vertical slide rail.

7. The tooling traverse device according to claim 6, characterized in that: The transverse drive module includes a drive motor, a driving pulley, a driven pulley and a synchronous belt, wherein: The driving pulley and the driven pulley are arranged on the mounting seat at a transverse interval, the synchronous belt is sleeved on the driving pulley and the driven pulley, the connecting plate is fixedly connected to one side of the belt body of the synchronous belt, and the driving motor drives the driving pulley to rotate to drive the synchronous belt to rotate.

8. The tooling traverse device according to claim 6, characterized in that: The lifting mechanism further includes a limit plate provided on the connecting plate and located above the lifting mechanism, wherein the limit plate is used to limit the rising stroke of the lifting mechanism, and the lifting drive module is a cylinder.

9. A battery cell stringing device, characterized in that: The battery cell stringing equipment includes a conveyor line, a traction device, a handling device, a curing device and a tooling lateral movement device according to any one of claims 1 to 8, wherein: The conveyor line is used to convey battery cells, welding ribbons and tooling, and a laying station, a traverse station and a curing station are sequentially arranged on the conveying path of the conveyor line along the first direction; The traction device is configured to clamp the end of the welding ribbon and lay the first half of the welding ribbon on the battery cell located at the laying station, and lay the second half of the welding ribbon on the conveyor line; The handling device is configured to press the tooling to a first position on the front half of the welding ribbon, and the pulling device is configured to release the end of the welding ribbon; The transport device is further configured to place the next cell onto the rear half of the welding ribbon; The conveyor line is configured to convey in a forward stepping manner so that a battery cell at the placement station moves forward while the next battery cell moves to the placement station; The tooling transverse movement device is located above the transverse movement station, and is configured to move the tooling on the battery cell located at the transverse movement station transversely by a predetermined distance along the conveying direction of the conveyor line and then press the tooling back to a second position on the front half of the welding ribbon; The distance between the tooling located at the first position and the end of the front half of the welding strip is greater than the distance between the tooling located at the second position and the end of the front half of the welding strip; The curing device is located above the curing station and is configured to fix the soldering ribbon located at the curing station to the corresponding battery cell.

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