Battery piece welding device

Abstract

The invention provides a battery piece welding device. The battery piece welding device comprises a first conveying mechanism, a second conveying mechanism, a first transferring mechanism, a second transferring mechanism, a carrying table, a feeding mechanism, a cutting-off mechanism, a first carrying mechanism and a welding mechanism. A first feeding station and a backflow station are arranged on a conveying path of the first conveying mechanism, and a second feeding station, a cutting station, a third feeding station, a welding station and a discharging station are arranged on a conveying path of the second conveying mechanism. According to the battery piece welding device, at least two battery pieces are placed on the carrying table at the same time, in the moving process of the carrying table, the metal wires are pulled out of the feeding mechanism and laid on the battery pieces, and the welding mechanism sequentially welds the metal wires to the battery pieces. And after the metal wires are laid, the cutting mechanism cuts off the metal wires to obtain at least two battery pieces welded by the metal wires. In the metal wire traction process, the metal wires are synchronously laid on the battery pieces, and the laying efficiency of the battery pieces and the metal wires is improved.

Description

Technical Field

[0001] The present application relates to the field of photovoltaic equipment, and more specifically to a cell welding device. Background Art

[0002] The cell welding device is a device used to weld and connect the cell to the welding ribbon. At present, the common cell welding device includes a belt conveyor, a welding ribbon laying mechanism, a cell laying mechanism and a welding mechanism, wherein the welding ribbon laying mechanism includes a feeding mechanism, a clamping mechanism, a cutting mechanism and a traction mechanism arranged in sequence, the cell laying mechanism lays the cell on the belt conveyor, the traction mechanism pulls the welding ribbon out of the feeding mechanism for a certain length, the clamping mechanism presses the welding ribbon, the cutting mechanism cuts the welding ribbon to obtain a predetermined length of welding ribbon, the traction mechanism then lays the predetermined length of welding ribbon on the cell, and finally the welding mechanism heats and welds the laid cell to the welding ribbon.

[0003] In traditional battery cell welding devices, the traction mechanism needs to wait for the welding ribbon to be cut before it can lay it on the battery cell. When the number of battery cells that need to be laid with welding ribbons is large, the waiting time of the traction mechanism is long, which will reduce the laying efficiency of the battery cells and welding ribbons. Summary of the invention

[0004] In order to solve the above technical problems, the present application provides a battery cell welding device, which adopts the following technical solutions:

[0005] A battery cell welding device comprises a first conveying mechanism, a second conveying mechanism, a first transfer mechanism, a second transfer mechanism, a carrier, a feeding mechanism, a cutting mechanism, a first transport mechanism and a welding mechanism, wherein:

[0006] The first conveying mechanism and the second conveying mechanism are arranged side by side and spaced apart along the first direction, and are both used to convey the carrier along the second direction, and the second direction is perpendicular to the first direction;

[0007] The carrier can carry at least two battery cells, and each battery cell is arranged along the second direction;

[0008] The first conveying mechanism has a first loading station and a reflow station on its conveying path, and the second conveying mechanism has a second loading station, a cutting station, a third loading station, a welding station and a unloading station in sequence on its conveying path;

[0009] The feeding mechanism is configured to supply a plurality of metal wires extending along the second direction to above the second loading station, and to make the free ends of the metal wires close to the cutting station;

[0010] The first transfer mechanism is configured to transfer the carrier carrying the battery sheet located at the first loading station to the second loading station;

[0011] The carrier is configured to pick up the free end of the metal wire from the feeding mechanism, and the second conveying mechanism is configured to convey the carrier so that the carrier passes through the cutting station, the third loading station, the welding station and the unloading station in sequence. During the conveying process, the carrier pulls the metal wire out of the feeding mechanism so that the metal wire is laid on each battery cell carried by the carrier;

[0012] The first transport mechanism is configured to place a press onto the battery cell at the third loading station to press the metal wire onto the battery cell;

[0013] The welding mechanism is configured to weld the metal wire located at the welding station to the battery cell;

[0014] The carrier and the feeding mechanism are also configured to cooperate in pressing the metal wire from the front and rear positions of the cutting station when the carrier completely leaves the cutting station, and the cutting mechanism is configured to cut the metal wire at the cutting station;

[0015] The second transfer mechanism is configured to transfer the carrier located at the unloading station to the reflow station;

[0016] The first conveying mechanism is also configured to convey the carrier back to the first loading station after the battery cells that have completed metal wire welding are taken away.

[0017] The battery cell welding device provided in the present application can place at least two battery cells on the carrier at the same time. The carrier pulls the metal wire out from the feeding mechanism during the movement, and the metal wire is laid on each battery cell. Then the welding mechanism welds the metal wire to each battery cell in turn. After the metal wire is laid, the cutting mechanism cuts the metal wire to obtain at least two battery cells welded by the metal wire.

[0018] It can be seen that by using the battery cell welding device provided in the present application, the metal wire is laid and welded to the battery cell synchronously during the process of pulling the metal wire, thereby improving the laying and welding efficiency of the battery cell and the metal wire.

[0019] In some embodiments, the battery cell welding device also includes a second conveying mechanism and a third conveying mechanism, wherein: the second conveying mechanism is configured to load the battery cells onto a carrier located at the first loading station; the third conveying mechanism is configured to remove the battery cells that have completed metal wire welding from the carrier located at the unloading station or the reflow station.

[0020] By setting up the second conveying mechanism, the automatic loading of the battery cells to be welded with metal wires is realized, and by setting up the third conveying mechanism, the automatic unloading of the battery cells after the metal wire welding is realized, thereby improving the loading and unloading efficiency of the battery cells.

[0021] In some embodiments, the cutting mechanism is fixedly disposed at the cutting station, or the cutting mechanism is disposed at the end of the carrier.

[0022] Two arrangements of the cutting mechanism are provided, both of which can achieve cutting of the metal wire at the cutting station.

[0023] In some embodiments, a first pressing member for pressing or releasing the metal wire is provided at the first end of the carrier, and a second pressing member for pressing or releasing the metal wire is provided at the second end of the carrier; the first pressing member is configured to: press the free end of the metal wire located on the feeding mechanism when the first end of the carrier moves to below the feeding mechanism; when the carrier completely leaves the cutting station, the second pressing member is configured to press the metal wire.

[0024] By arranging a first pressing member at the first end of the carrier, the carrier can pick up the free end of the metal wire from the feeding mechanism and pull the metal wire so that the metal wire is laid on the carrier during the pulling process. By arranging a second pressing member at the second end of the carrier, the carrier can cooperate with the feeding mechanism to press the metal wire from the front and rear positions of the cutting station.

[0025] In some embodiments, the first conveying mechanism includes a first guide rail, a first slide, a first locking assembly and a first driving unit, wherein: the first guide rail is arranged along the second direction, the first slide is slidably connected to the first guide rail and is transmission-connected to the first driving unit; the first slide is used to carry the carrier, and the first driving unit is used to drive the first slide to slide reciprocatingly along the first guide rail; the first locking assembly is installed on the first slide, and is used to lock or release the carrier carried on the first slide.

[0026] It can be seen that by setting up the first conveying mechanism, the first conveying mechanism can implement the load-bearing positioning and stable conveying of the carrier, thereby preventing the carrier from being displaced during the conveying process.

[0027] In some embodiments, the second conveying mechanism includes a second guide rail, a second slide, a second locking assembly and a second driving unit, wherein: the second guide rail is arranged along the second direction, the second slide is slidably connected to the second guide rail and is transmission-connected to the second driving unit; the second slide is used to carry the carrier, and the second driving unit is used to drive the second slide to slide reciprocatingly along the second guide rail; the second locking assembly is installed on the second slide, and is used to lock or release the carrier carried on the second slide.

[0028] It can be seen that by setting up the second conveying mechanism, the second conveying mechanism can implement the load-bearing positioning and stable conveying of the carrier, thereby preventing the carrier from being displaced during the conveying process.

[0029] In some embodiments, two carriers are provided, wherein one carrier is located on the first conveying mechanism, and the other carrier is located on the second conveying mechanism, and the two carriers carry the battery cells alternately.

[0030] By setting up two carriers, when the battery cell laying operation is performed on the carrier located on the first conveying mechanism, the metal wire laying and welding operations can be performed on the battery cell on the carrier located on the second conveying mechanism at the same time, thereby further improving the production efficiency.

[0031] In some embodiments, the first transfer mechanism includes a first turning conveying section, a first transition conveying section and a second turning conveying section, wherein: the first turning conveying section is arranged at the first loading station, the second turning conveying section is arranged at the second loading station, and the first transition conveying section is arranged between the first turning conveying section and the second turning conveying section; the first turning conveying section is configured to lift the carrier located at the first loading station upward and transport the carrier along the first direction to the first transition conveying section; the first transition conveying section is configured to transport the carrier along the first direction to the second turning conveying section, and the second turning conveying section is configured to transport the carrier along the first direction to the top of the second loading station and then lower the carrier to the second loading station.

[0032] Through the cooperation of the first steering conveyor, the first transition conveyor and the second steering conveyor, the first transfer mechanism automatically lifts and transfers the platform located at the first loading station of the first conveyor to the second loading station of the second conveyor. The lifting and conveying transfer method can avoid contact and interference between the first transfer mechanism and other mechanisms such as the feeding mechanism.

[0033] In some embodiments, the second transfer mechanism includes a third turning conveying section, a second transition conveying section and a fourth turning conveying section, wherein: the third turning conveying section is arranged at the unloading station, the fourth turning conveying section is arranged at the reflow station, and the second transition conveying section is arranged between the third turning conveying section and the fourth turning conveying section; the third turning conveying section is configured to lift the carrier located at the unloading station upward and transport the carrier along the first direction to the second transition conveying section; the second transition conveying section is configured to transport the carrier along the first direction to the fourth turning conveying section, and the fourth turning conveying section is configured to transport the carrier along the first direction to the top of the reflow station and then lower the carrier to the reflow station.

[0034] Through the cooperation of the third steering conveyor, the second transition conveyor and the fourth steering conveyor, the second transfer mechanism can automatically lift and transport the platform located at the unloading station of the second conveyor to the return station of the first conveyor. The lifting and transporting mode can avoid the second transfer mechanism from contacting and interfering with other mechanisms such as the first handling mechanism and the welding mechanism.

[0035] In some embodiments, the carrier includes at least two supporting blocks arranged side by side along the second direction, each supporting block is used to carry and adsorb a battery cell; a guide comb is provided between two adjacent supporting blocks and on the outside of the supporting blocks located at both ends, and the guide comb has a plurality of guide grooves arranged at intervals along the first direction, and each guide groove is used to guide a metal wire.

[0036] By configuring the carrier to consist of at least two supporting blocks arranged side by side along the second direction, and by arranging guide combs between two adjacent supporting blocks and on the outside of the supporting blocks at both ends, the metal wire is guided to prevent the metal wire from being displaced during the traction process.

[0037] In some embodiments, the carrier also includes a lifting drive member arranged in one-to-one correspondence with each guide comb, and the lifting drive member is used to drive the corresponding guide comb to lift and switch between a guiding high position and an avoidance low position; when the guide comb is in the guiding high position, the upper end of the guide groove is higher than the bearing surface of the carrier, and the metal wire can be laid on the battery cell below after entering the guide groove; when the guide comb is in the avoidance low position, the upper end of the guide groove is lower than the feeding mechanism.

[0038] By arranging the guide comb to be able to rise and fall and switch between a low avoidance position and a high guide position, the guide comb can pull the metal wire and avoid the feeding mechanism, ensuring that the carrier can pick up the free end of the metal wire from the feeding mechanism.

[0039] In some embodiments, the feeding mechanism includes a feeding roller group, a guide roller group and a pressure head, wherein: the feeding roller group is arranged in the front path of the second conveying mechanism, the guide roller group is arranged between the feeding roller group and the second conveying mechanism, and the pressure head is arranged near the cutting station; the feeding roller group is used to feed out a plurality of metal wires; the guide roller group is used to guide the metal wire to the pressure head, the pressure head is used to press or release the metal wire, and the free end of the metal wire extends out of the pressure head.

[0040] Through the cooperation of the discharge roller group, the guide roller group and the pressure head, the feeding mechanism can automatically feed the metal wire and position the free end of the metal wire at the cutting station, so that the carrier can pick up the free end of the metal wire from the cutting station every time.

[0041] In some embodiments, the feeding mechanism further includes a guide wheel disposed near the pressure head, the guide wheel being configured to cooperate with a guide roller group to guide the metal wire to the pressure head, and to horizontally support the metal wire above the second loading station.

[0042] By setting the guide wheel, it is ensured that the metal wire is supported in a horizontal state above the second loading station to prevent the metal wire from sagging and causing obstruction to the transfer and transportation of the carrier.

[0043] In some embodiments, the feeding mechanism further includes a flux coating member disposed between the unwinding roller group and the second conveying mechanism, and the flux coating member is used to coat flux on each metal wire.

[0044] By providing a flux coating member, the flux is automatically coated on the metal wire before the metal wire is placed on the carrier, thereby improving the welding strength between the metal wire and the battery cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 It is a schematic diagram of the top view of the structure of the battery cell welding device in the embodiment of the present application;

[0046] Figure 2 It is a side view structural schematic diagram of a battery cell welding device in an embodiment of the present application;

[0047] Figure 3 It is a top view schematic diagram of the first slide sliding to the first loading station in the embodiment of the present application;

[0048] Figure 4 It is a partial schematic diagram of a carrier carrying a battery cell and a metal wire in an embodiment of the present application;

[0049] Figure 5 for Figure 4 A magnified view of the H region in FIG.

[0050] Figure 6 for Figure 4 Magnified view of region I in FIG.

[0051] Figures 1 to 6 Included:

[0052] The first conveying mechanism 1: a first guide rail 11, a first slide 12, and an avoidance hole 121;

[0053] Second conveying mechanism 2: second guide rail 21, second slide 22;

[0054] The first transfer mechanism 3: a first transfer conveying part 31, a first transition conveying part 32, and a second turning conveying part 33;

[0055] The second transfer mechanism 4 includes a third turning conveying unit 41, a second transition conveying unit 42, and a fourth turning conveying unit 43;

[0056] Carrier 5: carrier block 51;

[0057] Feeding mechanism 6: unloading roller group 61, guide roller group 62, pressure head 63, guide wheel 64;

[0058] First transport mechanism 7;

[0059] Welding mechanism 8;

[0060] The first pressing member 9: a bearing plate 91 and a pressing plate 92;

[0061] A second pressing member 10;

[0062] Guide comb 110, guide groove 111;

[0063] Metal wire 100, battery cell 200;

[0064] The first loading station A, the reflow station G;

[0065] The second loading station B, the cutting station C, the third loading station D, the welding station E, and the unloading station F. DETAILED DESCRIPTION

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

[0067] The metal wire mentioned in the present application has solder on its surface, and the solder on its surface melts when the metal wire is heated, so that the metal wire and the battery cell are electrically connected. The cross section of the metal wire can be circular, triangular, rectangular, etc.

[0068] As described in the background technology section, in a traditional battery cell welding device, the traction mechanism needs to wait until the soldering ribbon is cut before laying the soldering ribbon. When the soldering ribbon to be laid is long, the traction mechanism has a long waiting time, which reduces the laying efficiency of the battery cell and the soldering ribbon.

[0069] In order to solve this problem, the present application provides a battery cell welding device, which is used to lay and weld metal wires to battery cells.

[0070] like Figures 1 to 6 As shown, the cell welding device in the embodiment of the present application includes a first conveying mechanism 1, a second conveying mechanism 2, a first transfer mechanism 3, a second transfer mechanism 4, a carrier 5, a feeding mechanism 6, a cutting mechanism (not shown in the figure), a first handling mechanism 7 and a welding mechanism 8, wherein:

[0071] The first conveying mechanism 1 and the second conveying mechanism 2 are arranged side by side and spaced apart along a first direction (eg, X direction), and are both used to convey the carrier 5 along a second direction (eg, Y direction), the second direction being perpendicular to the first direction.

[0072] The carrier 5 can carry at least two battery cells, and each battery cell is arranged along the second direction.

[0073] The conveying path of the first conveying mechanism 1 is provided with a first loading station A and a reflow station G, and the conveying path of the second conveying mechanism 2 is provided with a second loading station B, a cutting station C, a third loading station D, a welding station E and an unloading station F in sequence.

[0074] The feeding mechanism 6 is configured to supply a plurality of metal wires 100 extending along the second direction to above the second loading station B, and to make the free ends of the metal wires close to the cutting station C.

[0075] The first transfer mechanism 3 is configured to transfer the carrier 5 carrying the battery cell 200 located at the first loading station A to the second loading station B.

[0076] The carrier 5 is configured to pick up the free end of the metal wire 100 from the feeding mechanism 1, and the second conveying mechanism 2 is configured to convey the carrier 5, so that the carrier 5 passes through the cutting station C, the third loading station D, the welding station E and the unloading station F in sequence. During the conveying process, the carrier 5 pulls the metal wire 100 out of the feeding mechanism 6, so that the metal wire 100 is laid on each battery cell 200 carried by the carrier 5.

[0077] The first transport mechanism 7 is configured to place a press onto the battery cell 200 located at the third loading station D to press the metal wire 100 onto the battery cell 200 .

[0078] The welding mechanism 8 is configured to weld the metal wire located at the welding station E to the battery cell 200 .

[0079] The carrier 5 and the feeding mechanism 6 are also configured to cooperate in pressing the metal wire 100 from the front and rear positions of the cutting station C when the carrier 5 completely leaves the cutting station C. The cutting mechanism is configured to cut the metal wire 100 at the cutting station C.

[0080] The second transfer mechanism 4 is configured to transfer the carrier 5 located at the unloading station F to the reflow station G.

[0081] The first conveying mechanism 1 is also configured to convey the carrier 5 back to the first loading station A after the battery cell 200 that has completed wire welding is taken away.

[0082] The optional working process of the battery cell welding device in the embodiment of the present application is as follows:

[0083] The feeding mechanism 6 supplies a plurality of (generally 10 to 200) metal wires 100 extending along the second direction to the upper part of the second feeding station B, and limits the free end of the metal wire to a position close to the cutting station C. In other words, the metal wire 100 supplied by the feeding mechanism 6 is suspended above the second feeding station B, and a space is formed between the metal wire 100 and the second feeding station B to avoid the carrier 5.

[0084] Next, the first transfer mechanism 3 transfers the carrier 5 carrying the battery cell 200 located at the first loading station A to the second loading station B.

[0085] Next, the carrier 5 picks up the free end of the metal wire 100. Subsequently, the second conveying mechanism 2 conveys the carrier 5 so that the carrier 5 passes through the cutting station C, the third loading station D, the welding station E and the unloading station F in sequence. In this process, the carrier 5 pulls the metal wire 100 out of the feeding mechanism 6 and makes the metal wire 100 fall onto each battery cell 200 carried by the carrier 5 one by one. At the same time, the first conveying mechanism 7 places the presses one by one on the battery cells 200 passing through the third loading station D, thereby pressing the metal wire 100 onto the corresponding battery cell 200, and the welding mechanism 8 welds the metal wire 100 passing through the welding station E to the corresponding battery cell 200.

[0086] When the carrier 5 completely leaves the cutting station C, the carrier 5 and the feeding mechanism 6 cooperate to press the metal wire 100 from the front and rear positions of the cutting station C, and the cutting mechanism then cuts the metal wire 100 at the cutting station C. As all the battery cells on the carrier 5 are welded by the welding mechanism 8, at least two battery cells 200 with completed metal wire welding are obtained.

[0087] Subsequently, the second transfer mechanism 4 transfers the carrier 5 located at the unloading station F to the reflow station G. The battery cell 200 on the carrier 5 that has completed metal wire welding is taken away at the unloading station F or the reflow station G.

[0088] Finally, the first conveying mechanism 1 conveys the vacated carrier 5 back to the first loading station A.

[0089] The above process is repeated to implement metal wire welding for the next batch of battery cells.

[0090] The battery cell welding device provided in the embodiment of the present application can simultaneously place at least two battery cells 200 on the carrier 5. The carrier 5 can pull the metal wire 100 out from the feeding mechanism 6 during movement, and lay the metal wire 6 on each battery cell 200. Then, the welding mechanism sequentially welds the metal wire 100 to each battery cell 100. After the laying of the metal wire 100 is completed, the cutting mechanism cuts the metal wire 100, and at least two battery cells 200 with completed metal wire welding can be obtained.

[0091] It can be seen that by using the battery cell welding device provided in the present application, the metal wire is laid and welded to the battery cell synchronously during the process of pulling the metal wire, thereby improving the laying and welding efficiency of the battery cell and the metal wire.

[0092] After removing at least two battery cells welded with metal wires from the carrier, the metal wire between two adjacent battery cells can be cut off according to actual needs to obtain a battery cell metal wire unit, so as to prepare for subsequent series connection between battery cells.

[0093] The first transport mechanism 7 can adopt any existing mechanism capable of transporting the press, for example, the first transport mechanism 7 includes a moving part and a suction cup or a magnetic suction part connected to the driving end of the moving part, and the moving part drives the suction cup or the magnetic suction part to translate and lift, thereby driving the suction cup or the magnetic suction part to absorb the press, and place the press on the battery cell 200 located at the third loading station D. The press can adopt any existing press structure capable of pressing all the metal wires on the battery cell at the same time, for example, the press includes a frame and a plurality of rows of pressure pins mounted on the frame, and each row of pressure pins is used to elastically press a metal wire; or, the press includes a frame and a pressing net mounted on the frame, and the pressing net presses all the metal wires at the same time.

[0094] The welding mechanism 8 can use an infrared light box, a hot air component, an electromagnetic heating component, a laser heating component, etc. to heat the metal wire so that the solder on the surface of the metal wire melts.

[0095] Optionally, the battery cell welding device in the embodiment of the present application further includes a second conveying mechanism and a third conveying mechanism (not shown in the figure), wherein: the second conveying mechanism is configured to load the battery cell 200 onto the carrier 5 located at the first loading station A, thereby realizing automatic loading of the battery cell to be welded with the metal wire. The third conveying mechanism is configured to remove the battery cell 200 that has completed metal wire welding from the carrier 5 located at the unloading station F or the reflow station G, thereby realizing automatic unloading of the battery cell 200 that has completed metal wire welding.

[0096] Optionally, at least one group of first suction cups is provided on the second transport mechanism, and each group of first suction cups is used to absorb a battery cell. When multiple groups of first suction cups are provided on the second transport mechanism, the multiple groups of first suction cups are arranged side by side to absorb multiple battery cells at the same time and release the multiple battery cells onto the carrier 5 at the same time.

[0097] Optionally, a plurality of groups of second suction cups are provided on the third transport mechanism, each group of second suction cups corresponds one-to-one to a battery cell carried on the carrier 5, and is used for one-to-one adsorption of the welded battery cells on the carrier to remove the battery cells.

[0098] Optionally, the battery cell welding device also includes a fourth conveying mechanism, the structure of the fourth conveying mechanism is the same as the first conveying mechanism 7, and is used to remove the press on the battery cell welded by the welding mechanism 8, so that the subsequent third conveying mechanism can pick up the welded battery cell.

[0099] Optionally, the cutting mechanism is fixedly disposed at the cutting station C, and when the carrier 5 completely leaves the cutting station C, the cutting mechanism can cut the metal wire 100 .

[0100] The cutting mechanism can adopt various existing cutting mechanisms that can cut a number of metal wires 100. For example, the cutting mechanism includes a liftable mounting seat and a number of cutting shears arranged side by side on the mounting seat along the first direction. When the carrier 5 is pulling and laying the metal wire 100, the mounting seat is located in a low avoidance position, and the cutting shears are all in an open state, so that the carrier 5 can pass smoothly over the several cutting shears. When the carrier 5 completely leaves the cutting station C, the mounting seat rises to the cutting high position, so that each metal wire 100 falls into a cutting shear correspondingly, and the several cutting shears then cut the metal wire 100 synchronously.

[0101] Of course, the cutting mechanism can also be arranged at the end of the carrier 5, and when the carrier 5 completely leaves the cutting station C, the cutting mechanism arrives at the cutting station C. In this way, the cutting mechanism can immediately cut the metal wire 100. Optionally, the cutting mechanism includes a plurality of cutting shears arranged side by side at the end of the carrier 5 along the first direction, and when the carrier 5 is pulling and laying the metal wire 100, each metal wire 100 falls into a corresponding cutting scissors in an open state. When the carrier 5 completely leaves the cutting station C, the plurality of cutting shears cut the metal wire 100 synchronously.

[0102] like Figure 2 As shown, optionally, a first pressing member 9 for pressing or releasing the metal wire is provided at the first end of the carrier 5, and a second pressing member 10 for pressing or releasing the metal wire is provided at the second end of the carrier 5. The first pressing member 9 is configured to press the free end of the metal wire 100 located on the feeding mechanism 6 when the first end of the carrier 5 moves below the feeding mechanism 6. When the carrier 5 completely leaves the cutting station C, the second pressing member 10 is configured to press the metal wire 100.

[0103] By arranging the first pressing member 9 at the first end of the carrier 5 , the carrier 5 can pick up the free end of the metal wire 100 from the feeding mechanism 6 and pull the metal wire 100 .

[0104] By providing a second pressing member 10 at the second end of the carrier 5 , the second end of the carrier 5 can cooperate with the feeding mechanism 6 to press the metal wire 100 from the front and rear positions of the cutting station C, thereby facilitating the cutting mechanism to cut the metal wire 100 .

[0105] Optionally, the first pressing member 9 and the second pressing member 10 have the same structure. Figure 6 As shown, it includes a carrying plate 91 and a pressing plate 92 arranged above the carrying plate 91. The carrying plate 91 is fixedly installed at the end of the carrier 5. The carrying surface of the carrying plate 91 is not higher than the carrying surface of the carrier 5. The pressing plate 92 can be raised and lowered relative to the carrying plate 91 to press the metal wire 100 against the carrying surface of the carrying plate 91 or release the metal wire 100.

[0106] like Figure 1 As shown, optionally, the first conveying mechanism 1 includes a first guide rail 11, a first slide 12, a first locking assembly and a first driving unit, wherein: the first guide rail 11 is arranged along the second direction, the first slide 12 is slidably connected to the first guide rail 11 and is transmission-connected to the first driving unit. The first slide 12 is used to carry the carrier 5, and the first driving unit is used to drive the first slide 12 to slide back and forth along the first guide rail 11. The first locking assembly is installed on the first slide 12, and is used to lock or release the carrier 5 carried on the first slide 12.

[0107] The optional working process of the first conveying mechanism 1 is as follows:

[0108] When the second transfer mechanism 4 transfers the carrier 5 located at the unloading station F to the first slide 12 located at the reflow station G, the first locking assembly locks the carrier 5 on the first slide 12 .

[0109] Subsequently, the first slide 12 slides to the first loading station A under the drive of the first driving unit.

[0110] After the battery cells are loaded onto the carrier 5 , the first locking assembly releases the lock on the carrier 5 , so that the carrier 5 carrying the battery cells can be transferred to the second loading station B by the first transfer mechanism 3 .

[0111] Subsequently, the first slide table 12 slides to the reflow station G again under the drive of the first driving unit.

[0112] It can be seen that, by configuring the first conveying mechanism 1 , the first conveying mechanism 1 can stably carry and automatically convey the carrier 5 , thereby preventing the carrier 5 from being displaced during the conveying process.

[0113] The first locking assembly in the embodiment of the present application can adopt various existing locking mechanisms that can lock the carrier 5 to the first slide 12. For example, the first slide 12 is provided with a locking hole, and the first locking assembly includes a locking pin that matches the locking hole. When the locking pin is inserted into the locking hole, the carrier 5 can be locked to the first slide 12. The first driving part can adopt various existing linear driving modules that can drive the first slide 12 to slide along the first guide rail 11, such as a screw driving module, a synchronous belt driving module, etc.

[0114] Similarly, if Figure 1As shown, optionally, the second conveying mechanism 2 includes a second guide rail 21, a second slide 22, a second locking assembly and a second driving unit, wherein: the second guide rail 21 is arranged along the second direction, the second slide 22 is slidably connected to the second guide rail 21 and is transmission-connected to the second driving unit. The second slide 22 is used to carry the carrier 5, and the second driving unit is used to drive the second slide 5 to slide back and forth along the second guide rail 21. The second locking assembly is installed on the second slide 22, and is used to lock or release the carrier 5 carried on the second slide 22.

[0115] The optional working process of the second conveying mechanism 1 is as follows:

[0116] The second slide 22 slides to the second loading station B driven by the second driving unit. After the carrier 5 carrying the battery cells is transferred to the second slide 22 by the first transfer mechanism 3, the second locking assembly locks the carrier 5 on the second slide 22.

[0117] Subsequently, the second slide 22 carrying the carrier 5 is driven by the second driving unit to pass through the cutting station C, the third loading station D, the welding station E and the unloading station F in sequence.

[0118] After the carrier 5 slides to the unloading station F, the second locking assembly releases the carrier 5, so that the second transfer mechanism 4 transfers the carrier 5 to the reflow station G.

[0119] Subsequently, the second slide 22 slides back to the second loading station B under the drive of the second driving unit.

[0120] It can be seen that by configuring the second conveying mechanism 2 , the second conveying mechanism 2 can stably carry and automatically convey the carrier 5 , thereby preventing the carrier 5 from being displaced during the conveying process.

[0121] Similarly, the second locking component in the embodiment of the present application can adopt various existing locking mechanisms that can lock the carrier 5 to the second slide 22, and the second driving unit can adopt various existing linear driving modules that can drive the second slide 22 to slide along the second guide rail 21.

[0122] like Figure 1 As shown, optionally, two carriers 5 are provided, wherein one carrier 5 is located on the first conveying mechanism 1 , and the other carrier 5 is located on the second conveying mechanism 2 , and the two carriers carry the battery cells alternately.

[0123] By providing two carriers 5, when performing cell laying operation on the carrier 5 located on the first conveying mechanism 1, metal wire laying and welding operations can be performed on the cell on the carrier 5 located on the second conveying mechanism 2 simultaneously, thereby further improving production efficiency.

[0124] like Figures 1 to 3As shown, optionally, the first transfer mechanism 3 includes a first turning conveying part 31, a first transition conveying part 32 and a second turning conveying part 33, wherein: the first turning conveying part 31 is arranged at the first loading station A, the second turning conveying part 33 is arranged at the second loading station B, and the first transition conveying part 32 is arranged between the first turning conveying part 31 and the second turning conveying part 33.

[0125] The first turning conveyor 31 is configured to lift the carrier 5 located at the first loading station A upwards, and convey the carrier 5 along the first direction to the first transition conveyor 32. The first transition conveyor 32 is configured to convey the carrier 5 along the first direction to the second turning conveyor 33, and the second turning conveyor 33 is configured to convey the carrier 5 to the top of the second loading station B along the first direction, and then lower the carrier 5 to the second loading station B.

[0126] Through the cooperation of the first turning conveying part 31, the first transition conveying part 32 and the second turning conveying part 33, the first transfer mechanism 3 realizes automatic lifting and conveying of the carrier 5 located at the first loading station A of the first conveying mechanism 1 to the second loading station B of the second conveying mechanism 2. The lifting and conveying transfer method can avoid contact and interference between the first transfer mechanism 3 and other mechanisms such as the feeding mechanism 6.

[0127] Optionally, the first steering conveying part 31 and the second steering conveying part 33 adopt the same structure. Taking the first steering conveying part 31 as an example, it includes a lifting part and a steering conveyor belt arranged on the top of the lifting part and conveying along the first direction. Correspondingly, the first slide 12 and the second slide 22 have the same structure, such as Figure 3 As shown, taking the first slide 12 as an example, an avoidance hole 121 for avoiding the first turning conveying part 31 is provided thereon.

[0128] When the first slide 12 carries the carrier 5 and slides to the first loading station A and the battery cells are loaded onto the carrier 5, the lifting part of the first diverting conveyor 31 drives the corresponding diverting conveyor belt to rise to a high position through the avoidance hole 121 on the first slide 12, thereby lifting the carrier 5 upward out of the first slide 12, and making the diverting conveyor belt of the first diverting conveyor 31 dock with one end of the first transition conveyor 32. In addition, the second slide 22 slides to the second loading station B, and the lifting part of the second diverting conveyor 33 drives the corresponding diverting conveyor belt to rise to a high position through the avoidance hole on the second slide 22, so that the diverting conveyor belt of the second diverting conveyor 33 docks with the other end of the first transition conveyor 32.

[0129] Subsequently, the steering conveyor belt of the first steering conveying part 31 conveys the platform 5 to the first transition conveying part 32 along the first direction, and the first transition conveying part 32 then conveys the platform 5 to the steering conveyor belt of the second steering conveying part 33. After the steering conveyor belt of the second steering conveying part 33 conveys the platform 5 to the top of the second loading station B, the lifting part of the second steering conveying part 33 drives the corresponding steering conveyor belt to descend and return to its position, so that the platform 5 falls onto the second slide 22.

[0130] Since the length of the platform 5 along the second direction is long, in order to improve the stability of the platform 5 when it is lifted, as shown in FIG. Figure 3 As shown, optionally, the first turning conveying parts 31 are arranged in two groups side by side along the second direction, and the two groups of first turning conveying parts 31 cooperate to implement the lifting and conveying of the platform 5. Similarly, in order to improve the stability of the platform 5 when it is lowered, the second turning conveying parts 33 are arranged in two groups side by side along the second direction, and the two groups of second turning conveying parts 33 cooperate to implement the conveying and lowering of the platform 5.

[0131] Correspondingly, two avoidance holes 121 are provided on the first slide 12 and the second slide 22 along the second direction.

[0132] like Figures 1 to 3 As shown, optionally, the second transfer mechanism 4 includes a third turning conveying section 41, a second transition conveying section 42 and a fourth turning conveying section 43, wherein: the third turning conveying section 41 is arranged at the unloading station F, the fourth turning conveying section 43 is arranged at the reflow station G, and the second transition conveying section 42 is arranged between the third turning conveying section 41 and the fourth turning conveying section 43.

[0133] The third turning conveyor 41 is configured to lift the carrier 5 located at the unloading station F upwards and convey the carrier 5 along the first direction to the second transition conveyor 42. The second transition conveyor 42 is configured to convey the carrier 5 along the first direction to the fourth turning conveyor 43, and the fourth turning conveyor 43 is configured to convey the carrier 5 to the top of the reflow station G along the first direction and then lower the carrier 5 to the reflow station G.

[0134] It can be seen that, through the cooperation of the third turning conveying part 41, the second transition conveying part 42 and the fourth turning conveying part 43, the second transfer mechanism 4 can automatically lift and transport the carrier 5 located at the unloading station F of the second conveying mechanism 2 to the reflow station G of the first conveying mechanism 1. The lifting and transporting mode can avoid the second transfer mechanism 4 from contacting and interfering with other mechanisms such as the first handling mechanism 7 and the welding mechanism 8.

[0135] Similarly, optionally, the third turning conveying part 41 and the fourth turning conveying part 43 both include a lifting part and a turning conveying belt arranged on the top of the lifting part and conveying along the first direction.

[0136] When the second slide 22 carries the carrier 5 and slides to the unloading station F, the lifting part of the third diverting conveying part 41 drives the corresponding diverting conveying belt to rise to a high position through the avoidance hole on the second slide 22, thereby lifting the carrier 5 upward out of the second slide 22, and making the diverting conveying belt of the third diverting conveying part 41 dock with one end of the second transition conveying part 42. In addition, the first slide 12 slides to the reflow station G, and the lifting part of the fourth diverting conveying part 43 drives the corresponding diverting conveying belt to rise to a high position through the avoidance hole on the first slide 12, so that the diverting conveying belt of the fourth diverting conveying part 43 docks with the other end of the second transition conveying part 42.

[0137] Subsequently, the diverting conveyor belt of the third diverting conveyor section 41 conveys the carrier 5 to the second transition conveyor section 42 along the first direction, and the second transition conveyor section 42 then conveys the carrier 5 to the diverting conveyor belt of the fourth diverting conveyor section 43. After the diverting conveyor belt of the fourth diverting conveyor section 43 conveys the carrier 5 to the top of the reflow station G, the lifting part of the fourth diverting conveyor section 43 drives the corresponding diverting conveyor belt to descend and return to its original position, so that the carrier 5 falls onto the first slide 12.

[0138] Similarly, in order to improve the stability of the platform 5 when it is lifted, the third turning and conveying parts 41 are optionally arranged in two groups in parallel along the second direction, and the two groups of third turning and conveying parts 41 cooperate to lift and convey the platform 5. Similarly, in order to improve the stability of the platform 5 when it is lowered, the fourth turning and conveying parts 43 are arranged in two groups in parallel along the second direction, and the two groups of fourth turning and conveying parts 43 cooperate to convey and lower the platform 5.

[0139] like Figure 1 and Figures 4 to 6 As shown, optionally, the carrier 5 includes at least two (such as 11 in the figure) supporting blocks 51 arranged side by side along the second direction, and each supporting block 51 is used to carry and adsorb a battery cell 200. A guide comb 110 is provided between two adjacent supporting blocks 51 and on the outside of the supporting blocks 51 at both ends. The guide comb 110 has a plurality of guide grooves 111 arranged at intervals along the first direction, and each guide groove 111 is used to guide a metal wire 100.

[0140] By configuring the carrier 5 to be composed of at least two supporting blocks 51 arranged side by side along the second direction, and by arranging guide combs 110 between two adjacent supporting blocks 51 and on the outer sides of the supporting blocks 51 at both ends, the metal wire 100 is guided to prevent the metal wire 100 from being displaced during the traction process.

[0141] Optionally, the carrier 5 further includes a lifting drive member corresponding to each guide comb 110, and the lifting drive member is used to drive the corresponding guide comb 110 to switch between the guide high position and the avoidance low position. When the guide comb 110 is in the guide high position, the upper end of the guide groove 111 is higher than the bearing surface of the carrier 5, and the metal wire 100 can be laid on the battery cell 200 below after entering the guide groove 111. When the guide comb 110 is in the avoidance low position, the upper end of the guide groove 111 is lower than the feeding mechanism 6.

[0142] By setting the guide comb 110 to be able to rise and fall and switch between a low avoidance position and a high guide position, the guide comb 110 can guide the metal wire 100 and avoid the feeding mechanism 6, ensuring that the carrier 5 can smoothly pick up the free end of the metal wire 100 from the feeding mechanism 6.

[0143] Optional, such as Figure 6 As shown, the first clamping member 9 arranged at the first end of the carrier 5 is located on the outside of the guide comb 110 at the first end, so that after the first clamping member 9 clamps the free end of the metal wire 100 located on the feeding mechanism 6, the metal wire immediately enters the guide comb 110 for guided positioning; similarly, the second clamping member 10 arranged at the second end of the carrier 5 is located on the outside of the guide comb 110 at the second end, so as to realize the guiding and clamping of the tail end of the metal wire on the carrier 5.

[0144] like Figure 1 and Figure 2 As shown, optionally, the feeding mechanism 6 includes a feeding roller group 61, a guide roller group 62 and a pressure head 63, wherein: the feeding roller group 61 is arranged in front of the second conveying mechanism 2, the guide roller group 62 is arranged between the feeding roller group 61 and the second conveying mechanism 2, and the pressure head 63 is arranged near the cutting station C. The feeding roller group 62 is used to feed out a plurality of metal wires 100. The guide roller group 62 is used to guide the metal wire 100 to the pressure head 63, and the pressure head 63 is used to press or release the metal wire 100, and the free end of the metal wire 100 extends out of the pressure head.

[0145] It can be seen that through the cooperation of the discharge roller group 61, the guide roller group 62 and the pressure head 63, the feeding mechanism 6 can implement automatic feeding of the metal wire 100, and position the free end of the metal wire 100 at the cutting station C, so that the carrier 5 can pick up the free end of the metal wire 100 from the cutting station C each time.

[0146] like Figure 2 As shown, optionally, the feeding mechanism 6 also includes a guide wheel 64 arranged near the pressure head 63, and the guide wheel 64 cooperates with the guide roller group 62 to guide the metal wire 100 to the pressure head 63, and horizontally supports the metal wire 100 above the second loading station B.

[0147] By providing the guide wheel 64 , it is ensured that the metal wire 100 is supported in a horizontal state above the second loading station B, so as to prevent the metal wire 100 from sagging and causing obstruction to the transfer and transportation of the carrier 5 .

[0148] Optionally, the feeding mechanism 6 further includes a flux coating member disposed between the unwinding roller group 61 and the second conveying mechanism 2, and the flux coating member is used to coat flux on each metal wire 100, thereby improving the welding strength between the metal wire 100 and the battery cell 200. The flux coating member can adopt any existing mechanism capable of coating flux on metal wires, such as coating flux on metal wires by immersion or spraying.

[0149] The present application is described in sufficient detail above with certain particularity. It should be understood by those skilled in the art that the description in the embodiments is merely exemplary, and all changes made without departing from the true spirit and scope of the present application should fall within the scope of protection of the present application. The scope of protection claimed in the present application is defined by the claims, rather than by the above description in the embodiments.

Claims

1. A battery cell welding device, characterized in that: The battery cell welding device comprises a first conveying mechanism, a second conveying mechanism, a first transfer mechanism, a second transfer mechanism, a carrier, a feeding mechanism, a cutting mechanism, a first handling mechanism and a welding mechanism, wherein: The first conveying mechanism and the second conveying mechanism are arranged side by side and spaced apart along a first direction, and are both used to convey the carrier along a second direction, and the second direction is perpendicular to the first direction; The carrier can carry at least two battery cells, and each of the battery cells is arranged along the second direction; The conveying path of the first conveying mechanism is provided with a first loading station and a reflow station, and the conveying path of the second conveying mechanism is provided with a second loading station, a cutting station, a third loading station, a welding station and a unloading station in sequence; The feeding mechanism is configured to supply a plurality of metal wires extending along the second direction to above the second loading station, and to make the free ends of the metal wires close to the cutting station; The first transfer mechanism is configured to transfer the carrier carrying the battery sheet located at the first loading station to the second loading station; The carrier is configured to pick up the free end of the metal wire from the feeding mechanism, and the second conveying mechanism is configured to convey the carrier so that the carrier passes through the cutting station, the third loading station, the welding station and the unloading station in sequence. During the conveying process, the carrier pulls the metal wire out of the feeding mechanism so that the metal wire is laid on each battery cell carried by the carrier; The first transport mechanism is configured to place a press onto the battery cell located at the third loading station to press the metal wire onto the battery cell; The welding mechanism is configured to weld the metal wire located at the welding station to the battery cell; The carrier and the feeding mechanism are further configured to cooperate in pressing the metal wire from the front and rear positions of the cutting station when the carrier completely leaves the cutting station, and the cutting mechanism is configured to cut the metal wire at the cutting station; The second transfer mechanism is configured to transfer the carrier located at the unloading station to the reflow station; The first conveying mechanism is further configured to convey the carrier back to the first loading station after the battery cells that have completed wire welding are taken away.

2. The battery cell welding device according to claim 1, characterized in that: The battery cell welding device further includes a second transport mechanism and a third transport mechanism, wherein: The second transport mechanism is configured to load the battery cells onto the carrier located at the first loading station; The third transport mechanism is configured to take the battery cell that has completed wire welding from the carrier located at the unloading station or the reflow station.

3. The battery cell welding device according to claim 1, characterized in that: The cutting mechanism is fixedly arranged at the cutting station, or the cutting mechanism is arranged at the end of the carrier.

4. The battery cell welding device according to claim 1, characterized in that: A first pressing member for pressing or releasing the metal wire is disposed at the first end of the carrier, and a second pressing member for pressing or releasing the metal wire is disposed at the second end of the carrier; The first pressing member is configured to: press the free end of the metal wire located on the feeding mechanism when the first end of the carrier moves below the feeding mechanism; When the carrier completely leaves the cutting station, the second pressing member is configured to press the metal wire.

5. The battery cell welding device according to claim 1, characterized in that: The first conveying mechanism includes a first guide rail, a first slide, a first locking assembly and a first driving part, wherein: The first guide rail is arranged along the second direction, and the first slide is slidably connected to the first guide rail and is transmission-connected to the first driving part; The first slide is used to carry the carrier, and the first driving unit is used to drive the first slide to slide back and forth along the first guide rail; The first locking assembly is mounted on the first slide and is used to lock or release the carrier supported on the first slide.

6. The battery cell welding device according to claim 1, characterized in that: The second conveying mechanism includes a second guide rail, a second slide, a second locking assembly and a second driving part, wherein: The second guide rail is arranged along the second direction, and the second slide is slidably connected to the second guide rail and is transmission-connected to the second driving part; The second slide is used to carry the carrier, and the second driving unit is used to drive the second slide to slide back and forth along the second guide rail; The second locking assembly is mounted on the second slide, and is used to lock or release the carrier supported on the second slide.

7. The battery cell welding device according to claim 1, characterized in that: There are two carriers, one of which is located on the first conveying mechanism, and the other of which is located on the second conveying mechanism, and the two carriers carry battery cells alternately.

8. The battery cell welding device according to claim 1, characterized in that: The first transfer mechanism includes a first turning conveying portion, a first transition conveying portion and a second turning conveying portion, wherein: The first turning conveying part is arranged at the first loading station, the second turning conveying part is arranged at the second loading station, and the first transition conveying part is arranged between the first turning conveying part and the second turning conveying part; The first turning conveying portion is configured to lift the carrier located at the first loading station upwards and convey the carrier along the first direction to the first transition conveying portion; The first transition conveying section is configured to convey the carrier along the first direction to the second turning conveying section, and the second turning conveying section is configured to convey the carrier along the first direction to above the second loading station and then lower the carrier to the second loading station.

9. The battery cell welding device according to claim 1, characterized in that: The second transfer mechanism includes a third turning conveying portion, a second transition conveying portion and a fourth turning conveying portion, wherein: The third turning conveying part is arranged at the unloading station, the fourth turning conveying part is arranged at the reflow station, and the second transition conveying part is arranged between the third turning conveying part and the fourth turning conveying part; The third turning conveying part is configured to lift the carrier located at the unloading station upwards and convey the carrier along the first direction to the second transition conveying part; The second transition conveying section is configured to convey the carrier along the first direction to the fourth turning conveying section, and the fourth turning conveying section is configured to convey the carrier along the first direction to above the reflow station and then lower the carrier to the reflow station.

10. The battery cell welding device according to claim 1, characterized in that: The carrier includes at least two carrier blocks arranged side by side along the second direction, each of the carrier blocks is used to carry and absorb a battery cell; A guide comb is arranged between two adjacent bearing blocks and on the outer sides of the bearing blocks at both ends. The guide comb has a plurality of guide grooves arranged at intervals along the first direction, and each guide groove is used to guide one of the metal wires.

11. The battery cell welding device according to claim 10, characterized in that: The carrier also includes a lifting drive member arranged in one-to-one correspondence with each of the guide combs, and the lifting drive member is used to drive the corresponding guide comb to lift and switch between a guiding high position and an avoiding low position; When the guide comb is located at the guide high position, the upper end of the guide groove is higher than the bearing surface of the carrier, and the metal wire can be laid on the battery sheet below after entering the guide groove; When the guide comb is located at the avoidance low position, the upper end of the guide groove is lower than the feeding mechanism.

12. The battery cell welding device according to claim 1, characterized in that: The feeding mechanism comprises a feeding roller group, a guide roller group and a pressure head, wherein: The unloading roller group is arranged in front of the second conveying mechanism, the guide roller group is arranged between the unloading roller group and the second conveying mechanism, and the pressure head is arranged close to the cutting station; The unwinding roller group is used to unwind a plurality of the metal wires; The guide roller group is used to guide the metal wire to the pressure head, and the pressure head is used to compress or release the metal wire. The free end of the metal wire extends out of the pressure head.

13. The battery cell welding device according to claim 12, characterized in that: The feeding mechanism also includes a guide wheel arranged near the pressure head, and the guide wheel is configured to cooperate with the guide roller group to guide the metal wire to the pressure head, and to horizontally support the metal wire above the second loading station.

14. The battery cell welding device according to claim 12, characterized in that: The feeding mechanism further comprises a flux coating member arranged between the unwinding roller group and the second conveying mechanism, and the flux coating member is used for coating flux on each of the metal wires.

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