CN111146310A - Shingled battery string production equipment - Google Patents
Shingled battery string production equipment Download PDFInfo
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- CN111146310A CN111146310A CN202010021053.7A CN202010021053A CN111146310A CN 111146310 A CN111146310 A CN 111146310A CN 202010021053 A CN202010021053 A CN 202010021053A CN 111146310 A CN111146310 A CN 111146310A
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- 238000003860 storage Methods 0.000 claims description 24
- 238000011084 recovery Methods 0.000 claims description 23
- 238000005476 soldering Methods 0.000 claims description 23
- 238000005507 spraying Methods 0.000 claims description 22
- 239000003292 glue Substances 0.000 claims description 17
- 238000010073 coating (rubber) Methods 0.000 claims description 12
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- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
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Abstract
The invention relates to a laminated tile battery string production device which comprises a battery piece feeding device, a battery piece arranging device, a battery piece gluing device, a tile laminating device, a bus bar laying device and a welding device. The battery piece feeding device feeds the battery pieces to the conveying line; the battery piece detection and replacement device replaces the unqualified battery pieces on the conveying line with the qualified battery pieces. The battery piece conveying device conveys the qualified battery pieces on the conveying line to the battery piece arranging device; the cell sheet arranging device is used for arranging the cell sheets; the cell conveying device is also used for conveying the cell which is subjected to the arrangement to the cell gluing device; the battery piece gluing device is used for gluing the battery piece; the tile stacking device stacks the battery pieces and then returns the battery pieces to the conveying line; the bus bar laying device lays the bus bars at the head and tail parts of the tiled battery pieces; the welding device welds the battery pieces into a shingled battery string. The invention realizes the automatic production of the laminated cell string and improves the production efficiency.
Description
Technical Field
The invention relates to the technical field of photovoltaic cells, in particular to a production device of a laminated cell string.
Background
With the increasing rise of photovoltaic module products, the rapid development of solar energy industry in China is brought. With the continuous and rapid development of the manufacturing industry in China, great breakthroughs and improvements are made on photovoltaic module packaging, silicon wafer processing and crystalline silicon solar cell manufacturing.
The stringer is one of the core equipment in traditional photovoltaic module production process, and it is the equipment that connects into the battery cluster through the interconnection strip with single battery piece, and this kind of traditional connected mode can leave the space between battery piece and the battery piece, and the part that is sheltered from by the interconnection strip simultaneously can't receive sunshine to lead to whole traditional photovoltaic module's area utilization lower, thereby reduced photovoltaic module's photoelectric conversion efficiency. For this reason, a new type of shingled photovoltaic module has been developed, which uses the principle of shingled technology, in which individual cells are partially arranged one above the other and then welded together to form a string of cells. However, the novel laminated battery string is mainly completed by manual welding at present, and the production efficiency is low.
Disclosure of Invention
The invention aims to provide a laminated cell string production device which can realize full-automatic production of laminated cell strings, thereby remarkably improving the production efficiency.
In order to achieve the above object of the present invention, the technical solution of the present invention is as follows:
the utility model provides a fold tile battery cluster production facility, includes the regular device of battery piece loading attachment, battery piece rubber coating device, fold tile device, busbar laying device and the welding set that sets up along the transfer chain, wherein:
the battery piece feeding device is configured to feed the battery pieces onto a conveying line, and the battery pieces are conveyed towards the battery piece regulating device by the conveying line;
the cell sheet arranging device is configured to arrange the cell sheets fed to the conveying line;
the battery piece gluing device is configured to glue the structured battery pieces;
the bus bar laying device is configured to lay the head bus bar on the conveying line;
the tile stacking device is configured to pick up the glued battery pieces from the battery piece gluing device, arrange the picked battery pieces in a tile stacking manner, lay the arranged battery pieces on the conveying line, and stack the heads of the arranged battery pieces in the tile stacking manner on the head bus bars;
the bus bar laying device is also configured to sequentially lay the tail battery piece coated with the soldering flux and the tail bus bar on the tail part of the battery piece after the shingle arrangement;
the welding device is configured to weld the battery sheets after the bus bars are laid into the shingled battery string.
The welding device is configured to weld the battery sheets after the bus bars are laid into the shingled battery string.
By matching the cell sheet feeding device, the cell sheet arranging device, the cell sheet gluing device, the tile stacking device, the bus bar laying device and the welding device, the full-automatic production of the tile stacking cell string is realized, so that the production efficiency is improved.
In some embodiments, the shingled battery string production apparatus further comprises a cell inspection and replacement device and a cell handling device, wherein: the battery piece detection and replacement device is arranged between the battery piece feeding device and the battery piece arranging device and is configured to detect battery pieces fed to the conveying line and replace unqualified battery pieces to qualified battery pieces; the battery piece conveying device is configured to convey qualified battery pieces after detection and replacement on the conveying line to the battery piece arranging device, and convey the arranged battery pieces from the battery piece arranging device to the battery piece gluing device.
Through setting up battery piece and detecting replacement device, can realize rejection, the replacement to unqualified battery piece to the qualification rate of battery cluster has been promoted from the material loading link. Through setting up battery piece handling device, then realized the battery piece at the transfer chain, the regular device of battery piece and the quick transportation between the battery piece rubber coating device, promoted production efficiency.
In some embodiments, the stack string production apparatus further comprises a battery string detection device disposed at a rear of the welding device, the battery string detection device being configured to detect the stack string.
By arranging the battery string detection device at the rear of the welding device, the invention realizes the automatic detection of the battery string and ensures the quality reliability of the battery string.
In some embodiments, the battery piece feeding device comprises a battery box conveying mechanism, a battery box storage rack, a battery box recycling rack, a box taking mechanism, a first battery piece feeding mechanism and a box placing mechanism, wherein: a battery box storage position, a battery piece feeding position and a battery box recovery position are sequentially arranged on the battery box conveying mechanism along the conveying direction of the battery box conveying mechanism; the battery box storage rack is arranged at a battery box storage position, and a battery box provided with battery pieces is stored in the battery box storage rack; the battery box recovery frame is arranged at the battery box recovery position; the box taking mechanism is configured to pick up the battery box from the battery box storage rack and place the picked battery box on the conveying mechanism; the first battery piece feeding mechanism is arranged at the battery piece feeding position and is configured to pick up battery pieces from the battery box conveyed to the battery piece feeding position and feed the picked battery pieces to the conveying line; the box placing mechanism is configured to pick up the battery box conveyed to the battery box recovery position and store the picked-up battery box into the battery box recovery rack.
Through the cooperation of battery case conveying mechanism, get box mechanism, battery piece feed mechanism and put box mechanism, battery piece loading attachment can be automatically with battery piece material loading to transfer chain. In the feeding process, the full battery box for the battery piece and the empty battery box after being moved are stored in the battery box storage frame and the battery box recovery frame respectively in a buffering mode, so that the technical defect that the battery box needs to be carried manually frequently in the prior art is overcome, the feeding efficiency of the battery piece is remarkably improved, and the feeding cost is reduced.
In some embodiments, the battery piece detection and replacement device comprises a second battery piece feeding mechanism, a detection platform, a first detection mechanism, a second detection mechanism and a first battery piece carrying mechanism, wherein: the second battery piece feeding mechanism is configured to supplement the battery pieces onto the detection platform; the first detection mechanism is arranged above the detection platform and is configured to detect the battery piece supplemented to the detection platform; the second detection mechanism is arranged above the conveying line and is configured to detect the battery piece on the conveying line; the first battery piece carrying mechanism is configured to remove the battery pieces which are positioned on the conveying line and detected to be unqualified by the second detection mechanism from the conveying line, and carry the battery pieces which are positioned on the detection platform and detected to be qualified by the first detection mechanism to the conveying line.
Through the cooperation of second battery piece feed mechanism, test platform, first detection mechanism, second detection mechanism and first battery piece transport mechanism, the unqualified battery piece on the transfer chain can be detected out fast to battery piece detects replacement device to replace unqualified battery piece with qualified battery piece.
In some embodiments, the battery piece handling apparatus includes a second battery piece handling mechanism and a third battery piece handling mechanism, wherein: the second cell carrying mechanism is configured to carry the qualified cell after detection and replacement on the conveying line to the cell arranging device; the third cell carrying mechanisms are arranged into two groups, and the two groups of third cell carrying mechanisms are configured to alternately carry the cell sheets after the completion of the arrangement on the cell sheet arrangement device to the cell sheet gluing device.
Through setting up second battery piece transport mechanism and third battery piece transport mechanism, battery piece handling device is carrying the battery piece rubber coating device in-process with the current batch of battery piece after finishing arranging on the battery piece regular device to the battery piece, can carry the battery piece of next batch on the transfer chain to the battery piece regular device in step to the handling efficiency of battery piece has been promoted.
In some embodiments, the cell sheet regulating device includes a detecting portion and a regulating portion, wherein: the detection part is used for collecting the position information of the battery pieces to be normalized; regular portion is according to the regular battery piece of positional information that detection portion collected, and regular portion includes: the base comprises a base body and a first guide rail arranged on the base body along a first horizontal direction; and set up two sets of regular mechanisms on the base at least, wherein: each group of regulating mechanisms respectively comprises a first regulating mechanism, a second regulating mechanism and a third regulating mechanism, the first regulating mechanism is connected to the base, the second regulating mechanism is connected to the first regulating mechanism, the third regulating mechanism is connected to the second regulating mechanism, the first regulating mechanism drives the second regulating mechanism to move in a first horizontal direction, the second regulating mechanism drives the third regulating mechanism to move in a second horizontal direction, and the third regulating mechanism drives the battery piece to rotate in the horizontal plane.
The battery piece regulation device comprises at least two groups of regulation mechanisms, regulation of at least two battery pieces can be realized simultaneously, regulation efficiency is improved, and each regulation mechanism can be used for randomly regulating the positions and angles of the battery pieces on the horizontal plane through three regulation mechanisms.
In some embodiments, the battery piece rubber coating device includes first conveying mechanism, rubber coating platform, rubber coating mechanism, wherein: a feeding position, a gluing position and a discharging position are arranged on a conveying path of the first conveying mechanism; the glue coating mechanism is arranged at the glue coating position; the gluing platform is connected to the first conveying mechanism, and the first conveying mechanism is configured to drive the gluing platform to move in a reciprocating mode among the feeding position, the gluing position and the discharging position; when the gluing platform moves to the feeding position, the cell slice carrying device carries the cell slices which are arranged on the cell slice arranging device to the gluing platform; when the battery piece carried by the gluing platform moves to a gluing position, the gluing mechanism coats the conductive adhesive on the battery piece; when the gluing platform carries the glued battery piece to move to the blanking position, the tile stacking device picks up the glued battery piece from the gluing platform.
Through the cooperation of first transport mechanism, rubber coating platform, rubber coating mechanism, the automatic rubber coating to the battery piece has been realized to battery piece rubber coating device.
In some embodiments, the tile stacking apparatus comprises a frame, a suction cup assembly, a hinge mechanism, a telescopic driving mechanism, and a lifting driving mechanism, wherein: the sucking disc components are used for adsorbing the battery pieces, a plurality of sucking disc components are arranged on the rack side by side, each sucking disc component comprises a mounting seat used for being connected with the hinge mechanism and a sucking disc capable of lifting relative to the mounting seat, and the lifting driving mechanism is used for driving the sucking discs to lift; the hinge mechanism comprises a plurality of first strip-shaped parts which are arranged on a first layer in parallel and a plurality of second strip-shaped parts which are arranged on a second layer in parallel, the plurality of first strip-shaped parts and the plurality of second strip-shaped parts are hinged in a crossed mode to be capable of expanding or contracting, and a plurality of sucker components are connected to the hinge mechanism in parallel, so that the plurality of sucker components can be close to or far away from each other when the hinge mechanism is expanded or contracted; the telescopic driving mechanism drives the hinge mechanism to expand or contract.
Through the cooperation of the sucker components, the hinge mechanism, the telescopic driving mechanism and the lifting driving mechanism, the tile stacking device achieves flexible adjustment of the positions of the battery pieces adsorbed by the sucker components, and therefore automatic tile stacking of the battery pieces is achieved.
In some embodiments, the bus bar laying device comprises a second conveying mechanism, a transfer platform, a bus bar loading mechanism, a third battery piece loading mechanism, a soldering flux spraying mechanism and a laying mechanism; a bus bar feeding position, a tail battery piece feeding position and a soldering flux spraying position are arranged on a conveying path of the second conveying mechanism, the bus bar feeding mechanism is arranged at the bus bar feeding position, the third battery piece feeding mechanism is arranged at the tail battery piece feeding position, and the soldering flux spraying mechanism is arranged at the soldering flux spraying position; the transfer platform is connected to a second conveying mechanism, and the second conveying mechanism is configured to drive the transfer platform to move back and forth among a bus bar feeding position, a tail battery piece feeding position and a soldering flux spraying position; when the transfer platform moves to the bus bar loading position, the bus bar loading mechanism is configured to load the head bus bar and the tail bus bar to the transfer platform; when the transfer platform moves to the tail battery piece loading position, the third battery piece loading mechanism is configured to load the tail battery piece to the transfer platform; when the transfer platform moves to the soldering flux spraying position, the soldering flux spraying mechanism is configured to spray soldering flux on the tail battery piece; the laying mechanism is configured to pick up the head bus bar, the tail battery piece coated with the soldering flux and the tail bus bar from the transfer platform and place the picked-up head bus bar, tail battery piece and tail bus bar on the conveying line respectively.
Through the cooperation of second transport mechanism, transfer platform, busbar feed mechanism, third battery piece feed mechanism, scaling powder spraying mechanism and laying mechanism, busbar laying device is automatic with head, afterbody busbar automatic laying to the transfer chain on.
In some embodiments, the welding device comprises a welding light box and a heating device, wherein: the welding lamp box is arranged above the conveying line, the heating device is arranged below the conveying line, the welding lamp box is used for welding the head bus bar and the tail bus bar, and the heating device is used for welding the battery pieces after the shingle arrangement.
Set up welding set as welding lamp house and heating device, wherein: the heating device realizes the welding between the battery pieces, and the welding lamp box realizes the welding of the head and tail bus bars.
In some embodiments, the battery string detection device comprises an appearance detection mechanism and a subfissure detection mechanism; the appearance detection mechanism is configured to realize appearance detection of the laminated tile battery string; the hidden detection mechanism that splits is configured as the hidden detection that splits of realizing folding tile battery cluster, and hidden detection mechanism that splits is including detecting box, battery cluster transport mechanism, battery cluster circular telegram mechanism and hidden detection camera, wherein: the conveying line penetrates through the detection box body, and the battery string carrying mechanism, the battery string electrifying mechanism and the subfissure detection camera are arranged in the detection box body; after the transmission line carries the shingled battery string to enter the detection box body, the battery string carrying mechanism is configured to pick up the shingled battery string and carry the picked-up shingled battery string to the battery string electrifying mechanism, the battery string electrifying mechanism is configured to electrify the shingled battery string, and the subfissure detection camera is configured to perform subfissure detection on the electrified shingled battery.
The battery string detection device is set to be the appearance detection mechanism and the hidden crack detection mechanism, so that the appearance detection of the laminated tile battery string can be realized, the hidden crack detection of the laminated tile battery string can also be realized, and the detection effect is ensured.
Drawings
Fig. 1 is a schematic structural view of a shingle battery string production apparatus of the present invention from one perspective;
figure 2 is a schematic view of the construction of a shingle battery string production apparatus of the present invention from another perspective;
fig. 3 is a schematic structural view of a battery sheet feeding device according to the present invention at a viewing angle;
fig. 4 is a schematic structural view of a battery sheet feeding device in another view angle;
fig. 5 is a schematic structural view of a battery sheet feeding device according to the present invention from another view angle;
FIG. 6 is a schematic structural diagram of a battery plate detection and replacement device according to the present invention;
FIG. 7 is a schematic structural view of a battery plate handling apparatus according to the present invention;
FIG. 8 is a schematic structural diagram of a cell sheet arranging device according to the present invention;
FIG. 9 is a schematic view of the assembly of the regulating structure and the first guide rail of the cell regulating device of the present invention;
FIG. 10 is a schematic diagram of the structured structure of the cell sheet organizing device of the present invention;
FIG. 11 is a schematic structural view of a battery plate gluing device in the invention;
FIG. 12 is a schematic view of a shingle assembly of the present invention;
FIG. 13 is a schematic view of the tile stacking apparatus of the present invention without a portion of the structure;
FIG. 14 is a schematic view showing the hinge mechanism of the shingle assembly mounted to the frame;
fig. 15 is a schematic view of the bus bar laying apparatus of the present invention from one perspective;
fig. 16 is a schematic structural view of the bus bar laying device of the present invention from another perspective;
fig. 17 is a schematic structural view of a subfissure detection mechanism in the battery string detection device according to the present invention;
fig. 18 is a schematic configuration diagram of a battery string energization mechanism in the battery string detection device.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 1 to fig. 2, the apparatus for producing a laminated cell string according to the present invention includes a cell sheet feeding device 10, a cell sheet arranging device 40, a cell sheet gluing device 50, a laminating device 60, a bus bar laying device 70, and a welding device 80, which are disposed along a conveying line.
The battery sheet feeding apparatus 10 is configured to feed battery sheets onto a conveying line. The cell sheets are conveyed by the conveying line towards the cell sheet regulating device 40.
The cell sheet arranging device 40 is configured to arrange the cell sheets fed to the conveying line.
The cell gluing device 50 is configured to glue the structured cell, i.e. to coat the conductive adhesive on the cell.
The bus bar laying device 70 is configured to lay the head bus bar on the conveying line.
The tiling device 60 is configured to pick up the glued battery pieces from the battery piece gluing device, tile the picked battery pieces onto a conveying line after arranging the picked battery pieces, and stack the heads of the tiled battery pieces on the head bus bars.
The bus bar laying device 70 is also configured to lay the soldering flux-coated tail battery piece and the tail bus bar in sequence on the tail of the battery piece after the shingle arrangement.
The welding device 80 is configured to weld the bus bars laid on the battery sheets into a shingled battery string.
Therefore, through the cooperation of the cell sheet feeding device 10, the cell sheet regulating device 40, the cell sheet gluing device 50, the tile stacking device 60, the bus bar laying device 70 and the welding device 80, the full-automatic production of the tile-stacked cell string is realized, and the production efficiency is improved.
Optionally, the laminated string production apparatus further includes a battery piece detection and replacement device 20, a battery piece handling device 30, and a battery string detection device 90. Wherein:
the cell detection and replacement device 20 is arranged between the cell feeding device 10 and the cell arranging device 40, and is configured to detect the cells fed to the conveying line and replace the cells which are detected to be unqualified with qualified cells. Therefore, by arranging the battery piece detection and replacement device 20, unqualified battery pieces can be removed from the conveying line, and qualified battery pieces are supplemented to the conveying line, so that the qualification rate of the battery string is improved from the feeding ring section.
The cell conveying device 30 is configured to convey the qualified cell after detection and replacement on the conveying line to the cell arranging device 40, and convey the arranged cell from the cell arranging device 40 to the cell gluing device 50. Through setting up battery piece handling device 30, realized the battery piece at the transfer chain, the regular device 40 of battery piece and the quick transportation between battery piece rubber coating device 50, promoted production efficiency.
A string detection device 90 is provided at the rear of the welding device 80, which is configured to detect a shingled string. Through setting up battery cluster detection device 90, realized the automated inspection to the pile of tiles battery cluster, guaranteed the quality reliability of pile of tiles battery cluster.
Alternatively, as shown in fig. 3 to 5, the battery sheet feeding device 10 includes a battery case storage rack 11, a battery case recycling rack 15, a box taking mechanism 13, a first battery sheet feeding mechanism (not shown), a box placing mechanism 17, and a battery case conveying mechanism 18. Wherein:
the battery box conveying mechanism 18 is provided with a battery box storage position, a battery piece feeding position and a battery box recovery position in sequence along the conveying direction.
The battery box storage rack 11 is arranged at a battery box storage position, and a battery box with battery pieces is stored in the battery box storage rack 11. The battery case recovery frame 15 is provided at a battery case recovery position.
The magazine mechanism 13 is configured to pick up a cartridge from the cartridge magazine 11, place the picked-up cartridge on the conveying mechanism 18, and convey the cartridge to a cartridge loading position by the conveying mechanism 18.
The first battery piece feeding mechanism is arranged at the battery piece feeding position and is configured to pick up battery pieces from the battery box conveyed to the battery piece feeding position and feed the picked battery pieces onto the conveying line.
To facilitate the removal of the battery sheet feeding mechanism, the battery sheet feeding device 10 may further include a battery case lifting mechanism 14 disposed below the position where the battery sheet is fed. When the battery cartridge is conveyed to the battery-cartridge loading position by the battery-cartridge conveying mechanism 18, the battery-cartridge lifting mechanism 14 lifts the battery cartridge toward the first battery-cartridge loading mechanism.
The battery pack emptied by the first battery pack loading mechanism is transported by the transport mechanism 18 to the battery pack collection position.
The box placing mechanism 17 is configured to pick up the battery box conveyed to the battery box recovery position by the battery box conveying mechanism 18 and store the picked-up battery box into the battery box recovery rack 15, thereby realizing the recovery buffer of the empty battery box.
Through battery case conveying mechanism 18, get box mechanism 13, first battery piece feed mechanism and put the cooperation of box mechanism 17, battery piece loading attachment 10 can carry the battery piece to battery piece loading position department and with battery piece material loading to transfer chain automatically, and the material loading process, the empty battery box after storing the full battery case of battery piece and being removed empty is cached respectively in battery case storage frame 11 and battery case recovery frame 15.
Referring to fig. 3 and 4, alternatively, the bottom of the battery box storage rack 11 is provided with a box taking opening, and battery boxes containing battery pieces are vertically stacked in the battery box storage rack 11. The box taking mechanism 13 is disposed at the box taking port, and the box taking mechanism 13 is configured to pick up the battery box located at the bottommost portion of the battery box storage rack 11 through the box taking port and place the picked-up battery box on the conveying mechanism 18.
When taking out the battery case that is located the bottommost of battery case storage frame 11 through getting the box mouth, other battery cases of piling up on this battery case descend in step under the effect of self gravity, in order to prevent that other battery cases from getting the box mouth and falling down, it is injectd other battery cases in battery case storage frame 11 to need to set up special barrier mechanism. For this reason, optionally, the cartridge magazine 11 is provided with a first blocking mechanism 12, and when the lowermost cartridge of the cartridge magazine 11 is removed, the first blocking mechanism 12 is configured to confine the cartridge stacked on the lowermost cartridge within the cartridge magazine 11.
With continued reference to fig. 3 and 4, optionally, the bottom of the battery box recycling rack 15 is provided with a box placing opening; the box placing mechanism 17 is arranged at the box placing opening, and the box placing mechanism 17 stacks the picked battery boxes in the battery box recovery frame 15 along the vertical direction through the box placing opening.
In order to realize the support of the battery box stored in the battery box recovery frame 15 and prevent the battery box from falling from the box placing opening, optionally, a second box retaining mechanism 16 is arranged on the battery box recovery frame 15, and after the box placing mechanism 17 stacks the picked-up battery box in the battery box recovery frame 15 along the vertical direction through the box placing opening, the second box retaining mechanism 16 is configured to limit the battery box stacked in the battery box recovery frame 15.
Optionally, as shown in fig. 6, the battery piece detecting and replacing device 20 includes a second battery piece feeding mechanism 21, a detecting platform 22, a first detecting mechanism 23, a second detecting mechanism (not shown), and a first battery piece carrying mechanism 24, where:
the second cell loading mechanism 21 is configured to replenish the cell onto the detection platform 22. Optionally, a battery box is stored at a side of the battery piece detection and replacement device 20, and the second battery piece feeding mechanism 21 picks up a battery piece from the battery box and supplements the picked battery piece to the detection platform 22.
The first detecting mechanism 23 is disposed above the detecting platform 22, and the first detecting mechanism 23 is configured to detect the battery piece supplemented on the detecting platform 22. Optionally, after the first detection mechanism 23 completes the detection of the battery piece on the detection platform 22, a first mark is left on the battery piece which is qualified for the detection.
The second detection mechanism is arranged above the conveying line and is configured to detect the battery piece on the conveying line. Optionally, after the second detection mechanism completes detection of the battery pieces on the conveying line, a second mark is left on the battery pieces which are detected to be unqualified.
The first cell conveying mechanism 24 is configured to remove the cell which is located on the conveying line and is detected to be unqualified by the second detection mechanism from the conveying line, and convey the cell which is located on the detection platform 22 and is detected to be qualified by the first detection mechanism 23 to the conveying line. Optionally, a visual component is integrated on the first cell carrying mechanism 24, and the visual component can identify the first mark and the second mark, so as to identify the unqualified cell on the conveying line and the qualified cell on the detection platform 22, and replace the unqualified cell on the conveying belt.
Alternatively, as shown in fig. 7, the battery piece handling device 30 includes a second battery piece handling mechanism 31 and a third battery piece handling mechanism 32, wherein: the second cell conveying mechanism 31 is configured to convey the qualified cell after detection and replacement on the conveying line to the cell arranging device 40; the third cell handling mechanism 32 is configured to handle the finished structured cell on the cell arranging device 40 to the cell gluing device 50.
During the production process, the second cell slice conveying mechanism 31 and the third cell slice conveying mechanism 32 can synchronously or alternatively perform respective conveying operations, so that the production effect is improved. Preferably, the third cell conveying mechanisms 32 are arranged in two groups, and the two groups of third cell conveying mechanisms 32 alternately convey the cell sheets after finishing the arranging on the cell sheet arranging device 40 to the cell sheet gluing device 50.
Alternatively, as shown in fig. 8 to 10, the cell sheet regulating device 40 includes a detecting section (not shown) and a regulating section. The detection part is used for collecting the position information of the battery pieces to be structured. The regulating part regulates the battery pieces according to the position information collected by the detection part. The regulating section includes a base 41 and at least two sets of regulating mechanisms 42 disposed on the base 41. Because regulation portion includes two sets of regulation mechanisms 42 at least, consequently the battery piece regulation device 40 can regulate at least two battery pieces, has improved regulation efficiency.
Optionally, the base 41 includes a base body 411 and a first guide rail 412 disposed on the base body 411 along the first horizontal direction. Each set of normalization mechanisms 42 includes a first adjustment mechanism 421, a second adjustment mechanism 422, and a third adjustment mechanism 423, respectively. The first adjustment mechanism 421 is connected to the base 41, the second adjustment mechanism 422 is connected to the first adjustment mechanism 421, and the third adjustment mechanism 423 is connected to the second adjustment mechanism 422. The first adjustment mechanism 421 drives the second adjustment mechanism 422 to move along the first guide rail 412 in a first horizontal direction (e.g., X-axis direction), the second adjustment mechanism 422 drives the third adjustment mechanism 423 to move in a second horizontal direction (e.g., Y-axis direction), and the third adjustment mechanism drives the battery piece to rotate in a horizontal plane. It can be seen that each regulating mechanism 42 can arbitrarily adjust the spatial position of the cell through three adjusting mechanisms.
Optionally, the first adjustment mechanism 421 includes a first motor 4211, a first motor driving shaft 4212 and a first slider 4213, wherein: the first motor 4211 is connected to the base body 411 and located at one end of the first guide rail 412, the first slider 4213 is connected to the first motor driving shaft 4212 and slidably connected to the first guide rail 412, the second adjusting mechanism 422 is connected to the first slider 4213, and the first motor 4211 drives the first slider 4213 to slide along the first guide rail 412 through the first motor driving shaft 4212 to drive the second adjusting mechanism 422 to move in the first horizontal direction.
In the embodiment shown in fig. 8, there are eight sets of normalization mechanisms 42, wherein: the first motors 4211 of the four sets of the regulating mechanisms 42 are arranged at one end of the first guide rail 412 side by side, the first motors 4211 of the other four sets of the regulating mechanisms 42 are arranged at the other end of the first guide rail 412 side by side, and the first sliders 4213 of the eight sets of the regulating mechanisms 42 are connected to the first guide rail 412 side by side. The first sliding block 4213 of each regulating mechanism 42 is provided with four through holes, the first sliding block 4213 is fixedly sleeved on the corresponding first motor driving shaft 4212 through one through hole, and the other three through holes are configured to allow the first motor driving shafts 4212 of the other three regulating mechanisms 42 to pass through.
Optionally, the second adjusting mechanism 422 includes a second motor 4221, a second motor driving shaft 4222, a second slider 4223 and a second guiding rail 4224, wherein: the second guide rail 4224 is mounted on the first adjusting mechanism 421 along the second horizontal direction, the second slider 4223 is connected to the second motor drive shaft 4222 and is slidably connected to the second guide rail 4224, and the third adjusting mechanism 423 is mounted on the second slider 4223; the second motor 4221 drives the second slider 4223 to move along the second guide rail 4224 through the second motor driving shaft 4222, so as to drive the third adjustment mechanism 423 to move in the second horizontal direction.
Optionally, the third adjusting mechanism 423 includes a rotation driving portion and an adsorbing block, the rotation driving portion is connected to the second adjusting mechanism 422, and the adsorbing block is connected to the rotation driving portion. The rotary driving part is configured to drive the adsorption block to rotate so as to drive the battery piece adsorbed on the adsorption block to rotate in a horizontal plane. Optionally, the rotary driving part includes a rotary motor, the rotary motor is installed on the second adjusting mechanism 422 along the vertical direction, the adsorption block is connected to a rotary driving shaft of the rotary motor, and the rotary motor drives the adsorption block to rotate in the horizontal plane.
Optionally, as shown in fig. 11, the battery piece gluing device 50 includes a first conveying mechanism 51, a gluing platform 52 and a gluing mechanism 53, wherein:
a feeding position, a gluing position and a discharging position are arranged on a conveying path of the first conveying mechanism 51.
The glue spreading mechanism 53 is disposed at the glue spreading position.
The gluing station 52 is connected to a first transfer mechanism 51, and the first transfer mechanism 51 is configured to drive the gluing station 52 to reciprocate among a feeding position, a gluing position, and a discharging position.
When the gluing platform 52 moves to the loading position, the cell sheet carrying device 30 carries the cell sheets on the cell sheet arranging device 40 after the arranging to the gluing platform 52.
When the gluing platform 52 carries the battery piece to move to the gluing position, the gluing mechanism coats the conductive adhesive on one surface of the battery piece, the glued surface is the gluing surface of the battery piece, and the other surface which is not glued is the non-gluing surface. Optionally, the glue coating mechanism adopts a screen printer.
When the gluing platform 52 carries the glued battery piece to the blanking position, the tile stacking device 60 picks up the glued battery piece from the gluing platform 52. The picked battery pieces are subjected to a tiling arrangement by the tiling means 60.
In the battery pieces after the tiling arrangement, the glue coating surface part of the second battery piece is overlapped on the non-glue coating surface of the first battery piece (the head battery piece), and the glue coating surface part of the third battery piece is overlapped on the non-glue coating surface of the second battery piece, so as to be overlapped.
Optionally, as shown in fig. 12 to 14, the tile folding device 60 includes a frame 61, a suction cup assembly 62, a hinge mechanism 63, a telescopic driving mechanism 64, and a lifting driving mechanism 65. Wherein:
the sucking disc subassembly 62 is used for adsorbing the battery piece, and sucking disc subassembly 62 is provided with a plurality ofly, sets up side by side in frame 61, and every sucking disc subassembly 62 is including being used for the mount pad be connected with the hinge mechanism 63 and the sucking disc that the mount pad goes up and down relatively, and every sucking disc homoenergetic adsorbs a slice battery piece.
The lifting driving mechanism 65 is used for driving the sucker to lift corresponding to the mounting seat.
The hinge mechanism 63 includes a plurality of first bars 631 arranged in parallel at a first layer and a plurality of second bars 632 arranged in parallel at a second layer, the plurality of first bars 631 and the plurality of second bars 632 are cross-hinged to be capable of being unfolded or folded, and a plurality of suction cup assemblies 62 are connected side by side to the hinge mechanism 63 such that the plurality of suction cup assemblies 62 can be close to or away from each other when the hinge mechanism 63 is unfolded or folded. The telescopic driving mechanism 64 drives the hinge mechanism 63 to expand or contract.
The tiling device 60 realizes the tiling operation of the battery cells by driving the telescopic mechanism 63 to make the plurality of side-by-side sucker assemblies 62 approach to or move away from each other.
The lifting driving mechanism 65 can drive the suction cup of the suction cup assembly 62 to lift so as to drive the suction cup to lift, thereby facilitating the operations of taking and placing the battery piece and stacking the tiles.
The tiling process of the cell sheets by the tiling device 60 is substantially as follows:
picking up the battery pieces: the lifting driving mechanism 65 drives the suction cups of the suction cup assemblies 62 to descend to the conveying line, the suction cups of the suction cup assemblies 62 respectively suck a battery piece from the conveying line, and the lifting driving mechanism 65 drives the suction cups of the suction cup assemblies 62 to ascend to leave the conveying line.
And (3) laminating the battery pieces: the hinge mechanism 63 is driven to drive the hinge mechanism 63 to expand or contract, and the lifting driving mechanism 65 drives the suction cups of the suction cup assemblies 62 to lift at the same time until the battery pieces adsorbed by the suction cups of the suction cup assemblies 62 are stacked and arranged.
Optionally, the telescopic driving mechanism 64 includes a first motor 641, a lead screw 642 driven by the first motor 641, and a nut engaged with the lead screw 642 and connected with the suction cup assembly 62 at the end through a sliding block 643 fixed thereon. When the first motor 641 drives the lead screw 642 to rotate, the nut engaged with the lead screw 642 drives the suction cup assembly 62 to move, and the movement of the suction cup assembly 62 can drive the hinge mechanism 63 to extend and retract. It will be understood by those skilled in the art that the telescopic driving mechanism 64 may be directly connected to the hinge mechanism 63 to directly drive the hinge mechanism 63 to extend and retract. In addition, a telescopic driving mechanism 64 may be provided to push and pull the hinge mechanism 63 from both ends of the hinge mechanism 63 to simultaneously pull both ends or push both ends to expand or retract the hinge mechanism 63.
The lifting driving mechanism 65 comprises a rotating shaft 652, a rotating shaft driving mechanism for driving the rotating shaft 652 to rotate, and a plurality of cams 653 arranged at intervals on the rotating shaft 652, wherein the plurality of cams 653 are respectively in one-to-one correspondence with the plurality of sucker assemblies 62, so as to respectively control the lifting of the corresponding sucker through the profile of the plurality of cams 43. The rotating shaft driving mechanism for driving the rotating shaft 652 to rotate comprises a second motor 651, and in order to save installation space, the second motor 651 drives two belt pulleys through a belt, and the belt pulley deviating from the second motor 651 drives the rotating shaft 652 to rotate.
After the bus bar laying device 70 lays the head bus bar on the conveying line, the tiling device 60 places the tiled battery pieces on the conveying line and ensures that the heads of the tiled battery pieces are stacked on the head bus bar. Namely: the gluing surface of the head cell is superposed on the head bus bar.
Next, the bus bar laying device 70 sequentially lays the tail cell sheet, both surfaces of which are coated with the flux, and the tail bus bar on the tail of the cell sheet after the tiling arrangement. Namely: one surface of the tail battery piece is superposed on the tail of the battery piece after the shingled arrangement, and the tail bus bar is superposed on the other surface of the tail battery piece.
Alternatively, as shown in fig. 15 to 16, the bus bar laying device 70 includes a second conveying mechanism 71, a transfer platform 72, a bus bar feeding mechanism 73, a third battery sheet feeding mechanism 74, a flux spraying mechanism 75, and a laying mechanism 76. Wherein:
a bus bar feeding position, a tail battery piece feeding position and a soldering flux spraying position are arranged on a conveying path of the second conveying mechanism 71, the bus bar feeding mechanism 73 is arranged at the bus bar feeding position, the third battery piece feeding mechanism 74 is arranged at the tail battery piece feeding position, and the soldering flux spraying mechanism 75 is arranged at the soldering flux spraying position.
The relay platform 72 is connected to the second conveyor mechanism 71, and the second conveyor mechanism 71 is configured to drive the relay platform 72 to reciprocate between a bus bar loading position, a tail battery piece loading position, and a flux spraying position.
When the relay platform 72 is moved to the bus bar loading position, the bus bar loading mechanism 73 is configured to load the head bus bar and the tail bus bar to the relay platform 72.
The third cell loading mechanism 74 is configured to load the tail cell to the relay platform 72 when the relay platform 72 moves to the tail cell loading position. Optionally, a battery box is placed at a side of the third battery piece feeding mechanism 74, and the third battery piece feeding mechanism 74 picks up a tail battery piece from the battery box and feeds the tail battery piece to the transfer platform 72.
The flux spraying mechanism 75 is configured to spray flux onto the trailing battery blades when the relay platform 72 is moved to the flux spraying position.
The laying mechanism 76 is configured to pick up the header bus bars, the flux-coated tail cells, and the tail bus bars from the relay platform 72, and place the picked-up header bus bars, tail cells, and tail bus bars onto the conveying lines, respectively. Alternatively, the laying mechanism 76 employs a robot.
After the laying mechanism 76 finishes laying the tail bus bar, the conveying line carries the battery piece with the head bus bar and the tail bus bar laid thereon to continue conveying towards the welding device 80.
Optionally, the welding device 80 includes a welding light box and a heating device, wherein: the welding lamp box is arranged above the conveying line, and the heating device is arranged below the conveying line.
When the battery piece after the busbar is laid by the conveying line passes through the welding device 80, the welding lamp box heats the head busbar and the tail busbar, so that the head busbar and the tail busbar are welded. The heating device heats the battery pieces and the conductive adhesive on the battery pieces, so that the battery strings are welded together.
And finishing the processing of the laminated cell string.
As shown in fig. 1 and 17, the battery string detection device 90 may optionally include an appearance detection mechanism 91 and a subfissure detection mechanism 92.
The appearance detection mechanism 91 is configured to realize appearance detection of the shingled battery string.
The subfissure detection mechanism 92 is configured to realize subfissure detection on the laminated tile battery string, and the subfissure detection mechanism 92 comprises a detection box 921, a battery string carrying mechanism 922, a battery string electrifying mechanism 923 and a subfissure detection camera 924. Wherein: the transfer chain runs through detection box 921, and battery cluster transport mechanism 922, battery cluster circular telegram mechanism 923 and hidden split detection camera 924 set up in detecting box 921.
After the transmission line carries the shingled battery string to enter the detection box 921, the battery string carrying mechanism 922 is configured to pick up the shingled battery string and carry the picked shingled battery string to the battery string electrifying mechanism 923, the battery string electrifying mechanism 923 is configured to electrify the shingled battery string, and the subfissure detection camera 924 is configured to perform subfissure detection on the electrified shingled battery.
As shown in fig. 18, optionally, the battery serial power-on mechanism 923 includes a slide rail 9231, a first slide electrode 9232, a second slide electrode 9233, and a plurality of suction cups 9234. Wherein: the first and second sliding electrodes 9232 and 9233 are slidably connected to the slide rail 9231, and the suction pads 9234 are provided below the slide rail 9231.
When the battery string conveying mechanism 922 conveys the picked-up stack battery string to the position of the battery string electrifying mechanism 923, the plurality of suction cups 9234 adsorb the stack battery string. Then, the first sliding electrode 9232 and the second sliding electrode 9233 are controlled to slide until the first sliding electrode 9232 and the second sliding electrode 9233 are respectively contacted with the head bus bar and the tail bus bar at the end of the laminated battery string. At this time, the shingle string is energized.
The invention has been described above with a certain degree of particularity. It will be understood by those of ordinary skill in the art that the description of the embodiments is merely exemplary and that all changes that come within the true spirit and scope of the invention are desired to be protected. The scope of the invention is defined by the appended claims rather than by the foregoing description of the embodiments.
Claims (12)
1. The utility model provides a stack tile battery cluster production facility, its characterized in that, stack tile battery cluster production facility includes battery piece loading attachment, the regular device of battery piece, battery piece rubber coating device, stack tile device, busbar laying device and welding set that set up along the transfer chain, wherein:
the cell sheet feeding device is configured to feed cell sheets onto the conveying line, and the cell sheets are conveyed by the conveying line towards the cell sheet regulating device;
the cell sheet arranging device is configured to arrange the cell sheets fed to the conveying line;
the cell gluing device is configured to glue the structured cell;
the bus bar laying device is configured to lay a head bus bar on the conveying line;
the tile stacking device is configured to pick up the glued battery pieces from the battery piece gluing device, arrange the picked battery pieces in a tile stacking manner, lay the arranged battery pieces on the conveying line, and stack the heads of the arranged battery pieces in the tile stacking manner on the head bus bars;
the bus bar laying device is also configured to sequentially lay the tail battery piece coated with the soldering flux and the tail bus bar on the tail part of the battery piece after the shingle arrangement;
the welding device is configured to weld the battery sheets after the bus bars are laid into the shingled battery string.
2. The string of stacked cells production facility of claim 1, further comprising a cell inspection and replacement device and a cell handling device, wherein:
the battery piece detection and replacement device is arranged between the battery piece feeding device and the battery piece arranging device and is configured to detect the battery pieces fed to the conveying line and replace the battery pieces which are detected to be unqualified with qualified battery pieces;
the battery piece conveying device is configured to convey qualified battery pieces after detection and replacement on the conveying line to the battery piece arranging device, and convey the arranged battery pieces from the battery piece arranging device to the battery piece gluing device.
3. The string of stacked cells production facility of claim 1, further comprising a string detection device disposed downstream of the welding device, the string detection device configured to detect the stacked cell string.
4. The string production apparatus for laminated batteries according to claim 1, wherein the battery sheet feeding device comprises a battery box conveying mechanism, a battery box storage rack, a battery box recycling rack, a box taking mechanism, a first battery sheet feeding mechanism and a box placing mechanism, wherein:
a battery box storage position, a battery piece feeding position and a battery box recovery position are sequentially arranged on the battery box conveying mechanism along the conveying direction of the battery box conveying mechanism;
the battery box storage rack is arranged at the battery box storage position, and a battery box provided with battery pieces is stored in the battery box storage rack;
the battery box recovery frame is arranged at the battery box recovery position;
the box taking mechanism is configured to pick up a battery box from the battery box storage rack and place the picked battery box on the conveying mechanism;
the first battery piece feeding mechanism is arranged at the battery piece feeding position and is configured to pick up a battery piece from the battery box conveyed to the battery piece feeding position and feed the picked battery piece to the conveying line;
the battery pack accommodating mechanism is configured to pick up the battery pack conveyed to the battery pack recovery position and store the picked-up battery pack into the battery pack recovery rack.
5. The string of stack cells production apparatus of claim 2, wherein the cell inspection and replacement device comprises a second cell loading mechanism, an inspection platform, a first inspection mechanism, a second inspection mechanism, and a first cell handling mechanism, wherein:
the second battery piece feeding mechanism is configured to supplement battery pieces onto the detection platform;
the first detection mechanism is arranged above the detection platform and is configured to detect the battery piece supplemented to the detection platform;
the second detection mechanism is arranged above the conveying line and is configured to detect the battery piece on the conveying line;
the first battery piece carrying mechanism is configured to remove battery pieces which are positioned on the conveying line and detected to be unqualified by the second detection mechanism from the conveying line, and carry battery pieces which are positioned on the detection platform and detected to be qualified by the first detection mechanism to the conveying line.
6. The string of stacked cells production apparatus of claim 2, wherein the cell handling device comprises a second cell handling mechanism and a third cell handling mechanism, wherein:
the second cell slice conveying mechanism is configured to convey the qualified cell slices subjected to detection and replacement on the conveying line to the cell slice arranging device;
the third cell carrying mechanisms are arranged into two groups, and the two groups of third cell carrying mechanisms are configured to alternately carry the cell sheets after the cell sheets are regulated on the cell sheet regulating device to the cell sheet gluing device.
7. The string of stacked cells production apparatus of claim 1, wherein the cell sheet regulating device comprises a detecting section and a regulating section, wherein:
the detection part is used for collecting the position information of the battery pieces to be structured;
the regulation portion regulates the battery piece according to the position information that the detection portion collected, regulation portion includes:
the base comprises a base body and a first guide rail arranged on the base body along a first horizontal direction; and
set up in at least two sets of regular mechanisms on the base, wherein: every group the regulation mechanism includes first guiding mechanism, second guiding mechanism and third guiding mechanism respectively, first guiding mechanism connects on the base, second guiding mechanism connects on first guiding mechanism, third guiding mechanism connects on the second guiding mechanism, first guiding mechanism drives second guiding mechanism is in first horizontal direction removes, second guiding mechanism drives third guiding mechanism removes in second horizontal direction, third guiding mechanism drives the battery piece is at the horizontal rotation.
8. The string of shingled batteries production apparatus of claim 1, wherein said cell glue applicator comprises a first conveyor mechanism, a glue applicator platform, and a glue applicator mechanism, wherein:
a feeding position, a gluing position and a discharging position are arranged on a conveying path of the first conveying mechanism;
the glue spreading mechanism is arranged at the glue spreading position;
the gluing platform is connected to the first conveying mechanism, and the first conveying mechanism is configured to drive the gluing platform to move back and forth among the feeding position, the gluing position and the discharging position;
when the gluing platform moves to the loading position, the cell slice carrying device carries the cell slices which are arranged on the cell slice regulating device to the gluing platform;
when the battery piece carried by the gluing platform moves to the gluing position, the gluing mechanism coats the conductive adhesive on the battery piece;
when the gluing platform carries the glued battery piece to move to the blanking position, the tile stacking device picks up the glued battery piece from the gluing platform.
9. The string of stacked cells production apparatus of claim 1, wherein said stacking device comprises a frame, a suction cup assembly, a hinge mechanism, a telescoping drive mechanism, and a lifting drive mechanism, wherein:
the sucking disc components are used for adsorbing the battery pieces, the sucking disc components are arranged on the rack side by side, each sucking disc component comprises a mounting seat used for being connected with the hinge mechanism and a sucking disc capable of lifting relative to the mounting seat, and the lifting driving mechanism is used for driving the sucking discs to lift;
the hinge mechanism comprises a plurality of first bars arranged on a first layer in parallel and a plurality of second bars arranged on a second layer in parallel, the plurality of first bars and the plurality of second bars are hinged in a crossed mode to be capable of expanding or contracting, and the plurality of sucker assemblies are connected to the hinge mechanism side by side, so that the plurality of sucker assemblies can be close to or far away from each other when the hinge mechanism expands or contracts;
the telescopic driving mechanism drives the hinge mechanism to expand or contract.
10. The string of shingled batteries production apparatus of claim 1, wherein the bus bar placement device comprises a second transport mechanism, a transfer platform, a bus bar loading mechanism, a third battery piece loading mechanism, a flux spraying mechanism, and a placement mechanism;
a bus bar feeding position, a tail battery piece feeding position and a soldering flux spraying position are arranged on a conveying path of the second conveying mechanism, the bus bar feeding mechanism is arranged at the bus bar feeding position, the third battery piece feeding mechanism is arranged at the tail battery piece feeding position, and the soldering flux spraying mechanism is arranged at the soldering flux spraying position;
the transfer platform is connected to the second conveying mechanism, and the second conveying mechanism is configured to drive the transfer platform to move back and forth among the bus bar loading position, the tail battery piece loading position and the soldering flux spraying position;
when the transfer platform moves to the bus bar loading position, the bus bar loading mechanism is configured to load a head bus bar and a tail bus bar to the transfer platform;
when the transfer platform moves to the tail battery piece loading position, the third battery piece loading mechanism is configured to load a tail battery piece to the transfer platform;
when the transfer platform moves to the soldering flux spraying position, the soldering flux spraying mechanism is configured to spray soldering flux onto the tail battery piece;
the laying mechanism is configured to pick the head bus bar, the tail battery piece coated with the soldering flux and the tail bus bar from the transfer platform, and place the picked head bus bar, tail battery piece and tail bus bar on the conveying line respectively.
11. The string of shingled batteries production apparatus of claim 1 wherein said welding means comprises a welding light box and heating means, wherein: the welding lamp box set up in the top of transfer chain, heating device set up in the below of transfer chain, the welding lamp box is used for welding head busbar and afterbody busbar, heating device is used for heating battery piece and conducting resin after the shingle arrangement.
12. The shingled battery string production apparatus according to claim 3, wherein said battery string detection means comprises an appearance detection mechanism and a subfissure detection mechanism;
the appearance detection mechanism is configured to enable appearance detection of the shingled battery string;
the hidden detection mechanism that splits is configured to realize the hidden detection that splits to the shingling battery cluster, hidden detection mechanism that splits includes detection box, battery cluster transport mechanism, battery cluster circular telegram mechanism and hidden detection camera, wherein: the conveying line penetrates through the detection box body, and the battery string carrying mechanism, the battery string electrifying mechanism and the subfissure detection camera are arranged in the detection box body; after the conveyor line carries the shingled battery string to enter the detection box body, the battery string handling mechanism is configured to pick up the shingled battery string and handle the picked shingled battery string to the battery string electrifying mechanism, the battery string electrifying mechanism is configured to electrify the shingled battery string, and the subfissure detection camera is configured to perform subfissure detection on the electrified shingled battery.
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| CN202010021053.7A CN111146310A (en) | 2020-01-09 | 2020-01-09 | Shingled battery string production equipment |
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| CN202010021053.7A CN111146310A (en) | 2020-01-09 | 2020-01-09 | Shingled battery string production equipment |
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| CN114833504A (en) * | 2022-07-05 | 2022-08-02 | 江苏小牛自动化设备有限公司 | Battery string preparation method and battery string welding equipment |
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