CN219626613U - Battery string production equipment - Google Patents
Battery string production equipment Download PDFInfo
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- CN219626613U CN219626613U CN202223086453.XU CN202223086453U CN219626613U CN 219626613 U CN219626613 U CN 219626613U CN 202223086453 U CN202223086453 U CN 202223086453U CN 219626613 U CN219626613 U CN 219626613U
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- strip
- battery
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- battery piece
- film strip
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 43
- 238000003466 welding Methods 0.000 claims abstract description 205
- 238000003825 pressing Methods 0.000 claims description 18
- 238000010438 heat treatment Methods 0.000 claims description 15
- 238000005096 rolling process Methods 0.000 claims description 10
- 229910000679 solder Inorganic materials 0.000 claims description 7
- 239000012943 hotmelt Substances 0.000 claims description 6
- 239000004831 Hot glue Substances 0.000 claims description 5
- 239000000853 adhesive Substances 0.000 claims description 5
- 230000001070 adhesive effect Effects 0.000 claims description 5
- 239000012528 membrane Substances 0.000 description 40
- 238000005056 compaction Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 7
- 229910052709 silver Inorganic materials 0.000 description 7
- 239000004332 silver Substances 0.000 description 7
- 239000000306 component Substances 0.000 description 6
- 239000002313 adhesive film Substances 0.000 description 5
- 210000004027 cell Anatomy 0.000 description 5
- 229910021419 crystalline silicon Inorganic materials 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 210000003850 cellular structure Anatomy 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004021 metal welding Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 229910001174 tin-lead alloy Inorganic materials 0.000 description 2
- NEIHULKJZQTQKJ-UHFFFAOYSA-N [Cu].[Ag] Chemical compound [Cu].[Ag] NEIHULKJZQTQKJ-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Battery Mounting, Suspending (AREA)
Abstract
The utility model discloses a battery string production device, which comprises a back surface film strip feeding part, a battery piece feeding part, a welding strip feeding part, a surface film strip feeding assembly and a conveying part, wherein: the back surface film strip feeding part is used for placing a plurality of parallel back surface film strips on the conveying surface of the conveying part, and the conveying surface of the conveying part drives the back surface film strips to synchronously advance; the welding strip feeding part is used for providing welding strip groups for the conveying part, and welding strips in the welding strip groups are placed in one-to-one correspondence with the back film strips; the battery piece feeding part is used for providing battery pieces for the conveying part; the surface film strip feeding assembly is used for providing a surface film strip for the battery piece so as to fix the welding strip group on the front surface of the battery piece. The welding strip on the back of the battery piece is fixed on the battery piece through the arrangement of the back film strip feeding part, the back film strip is driven to synchronously advance through the conveying part, continuous feeding of the back film strip is realized, the front welding strip of the battery piece is fixed on the battery piece through the surface film strip feeding assembly, and then production of the battery string is completed.
Description
Technical Field
The utility model belongs to the technical field of photovoltaic equipment, and relates to battery string production equipment.
Background
Photovoltaic is an important clean energy source, and is an important energy field and technical direction in the world; the photovoltaic cell component is a core component of photovoltaic power generation, and the crystalline silicon cell component occupies more than 95% of the market. The cost of the crystalline silicon chip and the silver paste occupies a great proportion in the crystalline silicon component, and the reduction of the silver paste consumption and the silicon chip consumption is important for reducing the comprehensive cost of the component, the battery electricity cost and improving the market application of the photovoltaic.
The thickness of the silicon wafer for the photovoltaic cell which is mainstream in the market at present is about 170-180 um, silver (or silver copper) slurry is required to be printed on the surface of the cell in the processing process of the crystalline silicon wafer, and after drying or sintering, the photo-generated current in the cell is led out through the metal slurry. In the mainstream photovoltaic module, products among the battery pieces are interconnected through metal welding strips, tin-lead alloy is arranged on the surfaces of the welding strips, the welding strips and the battery pieces are welded together through a special infrared welding device at a high temperature, the typical welding temperature is 220-350 ℃, and the tin-lead alloy is melted at the high temperature to fuse the welding strips and silver paste on the surfaces of the batteries together. In the traditional battery assembly interconnection scheme, because a high-temperature process is adopted, stress warpage of the silicon wafer is easy to crack, break and flaking is difficult to realize; meanwhile, in order to realize effective welding, a large amount of silver needs to be used as a main grid line electrode below a welding strip, and a large amount of silver is used for manufacturing the main grid, so that high silver paste and battery cost are brought.
In the prior art, a smart wire technology is adopted, the surface of a battery is also free of a main grid line, battery pieces are interconnected through a low-temperature welding belt, but an infrared welding process is not adopted, wherein a special packaging adhesive film is adopted for the metal welding belt to fix the welding belt on the adhesive film in advance; and part of the welding strip is embedded into the adhesive film, the other part of the welding strip is exposed outside, the exposed part of the welding strip is contacted with the battery, and the part of the welding strip exposed out of the adhesive film and the battery are fused together in the lamination process to realize interconnection. In the scheme, a special adhesive film with high price is needed to be used for fixing the welding strip, and the problem of high cost also exists.
Disclosure of Invention
In order to solve the problems in the related art, the utility model provides a battery string production device, which is characterized in that a back surface film strip is pre-paved, then a welding strip and a battery piece are stacked on the back surface film strip, the welding strip is fixed on the battery piece by using a fixing film, and the production of the battery string is realized by heating the back surface film strip and the fixing film at low temperature.
The utility model provides a battery string production device, which comprises a back surface film strip feeding part, a battery piece feeding part, a welding strip feeding part, a surface film strip feeding assembly and a conveying part, wherein: the back surface film strip feeding part is used for placing a plurality of parallel back surface film strips on the conveying surface of the conveying part, and the conveying surface of the conveying part drives the back surface film strips to synchronously advance; the welding strip feeding part is used for providing welding strip groups for the conveying part, and welding strips in the welding strip groups are placed in one-to-one correspondence with the back film strips; the battery piece feeding part is used for providing battery pieces for the conveying part; the surface film strip feeding assembly is used for providing a surface film strip for the battery piece, the battery piece and the welding strip are stacked into a battery string through the welding strip feeding part and the battery piece feeding part, so that the ith battery piece is paved on the second half section of the ith welding strip group, the first half section of the (i+1) th welding strip group is paved on the ith battery piece, the first half section of the (i+1) th welding strip group is fixed on the ith battery piece through the surface film strip, and the second half section of the (i) th welding strip group is fixed on the ith battery piece through the back film strip, wherein i is any natural number larger than 0.
The welding strip on the back of the battery piece is fixed on the battery piece through the setting of the back surface membrane strip feeding part, the back surface membrane strip is driven to synchronously advance through the conveying part, continuous feeding of the back surface membrane strip is realized, the front welding strip of the battery piece is fixed on the battery piece through the surface membrane strip feeding assembly, the battery piece and the welding strip are fixed through the setting of the back surface membrane strip feeding part and the surface membrane strip feeding assembly, and production of the battery string is completed.
Preferably, the surface film strip feeding assembly comprises a fixed film strip feeding part, wherein the fixed film strip feeding part is used for providing at least two fixed film strips for the battery piece, and the fixed film strips are arranged in a crossing way with the welding strip group; the at least one fixing film strip is used for fixing the welding strip group at the first end of the front surface of the battery piece; the at least one fixing film strip is used for fixing the welding strip group at the second end of the front face of the battery piece.
The front of welding strip group location at the battery piece has been realized through the setting of fixed membrane strip feed portion, has realized that a membrane strip is fixed many welding strips in the front of battery piece simultaneously through fixed membrane strip and welding strip group alternately placed.
Preferably, the battery piece feeding part further comprises a tool carrying part, and the battery piece feeding part is used for carrying the battery pieces and tools at the same time, so that an ith battery piece is paved on the rear half section of an ith welding strip group, and the ith-1 tool compresses the front half section of the ith welding strip group above the ith-1 battery piece; or, the battery string production equipment further comprises a tool carrying device, wherein the tool carrying device is used for providing tools for the conveying part, and the tools are used for pressing the first half section of the ith welding strip group above the ith-1 battery piece; where i is any natural number greater than 0.
The feeding of frock has been realized through frock transport portion or through the setting of the frock handling device that sets up alone, has not only realized the location of welding the area through the frock, has also compressed tightly the welding area on the battery piece, has realized that the back membrane strip is better will weld the area and be fixed to the battery piece.
Preferably, the battery string production equipment further comprises a blanking device, the blanking device is arranged on the back of the battery piece feeding part or the tool conveying device, the blanking device comprises a tool picking part and a tool moving part, the tool picking part is arranged on the driving end of the tool moving part, and the tool moving part is used for driving the tool picking part to move the tool away from the conveying part.
And the removal of the battery piece after the back welding strip is fixed is realized through the arrangement of the blanking device.
Preferably, the battery string production equipment further comprises a tool carrying part and a group of tools which are placed on the conveying surface in advance, and the conveying part drives the tools to synchronously advance; the tool carrying part is used for circularly clamping a tool farthest from the initial end of the conveying surface, and is also used for moving the tool to the upper surface of the battery piece on which the front half section of the welding strip group is paved so as to compress the welding strip group on the upper surface of the battery piece; or, the tool carrying part is used for circularly clamping a tool farthest from the initial end of the conveying surface, and the tool carrying part is also used for moving the tool to the battery piece with the welding band group fixed by the surface film strip on the upper surface so as to compress the welding band group on the upper surface of the battery piece.
The tool carrying part circularly clamps the battery piece which is farthest from the initial end of the conveying surface and is placed on the front half section of the surface paved with the welding strip group or the battery piece above the upper surface welded strip group which is fixed by the surface film strip, so that the cyclic use of the tool is realized, and the utilization efficiency of the tool is improved.
Preferably, the surface film strip feeding assembly comprises a front surface film strip feeding part, wherein the front surface film strip feeding part is used for synchronously pasting a plurality of front surface film strips on the upper surface of the battery piece along the advancing direction of the conveying part, and the front surface film strips are in one-to-one correspondence with the welding strips of the welding strip group.
The welding strip group on the front face of the battery piece is fixed on the battery piece through the arrangement of the front face membrane strip feeding part.
Preferably, the front membrane strip feeding part comprises a front membrane strip feeding roll and a rolling pressing device, the front membrane strip feeding roll provides the front membrane strip for the battery string, and the rolling pressing device presses and applies the front membrane strip on the battery string.
The feeding of the front face membrane strip is realized through the arrangement of the front face membrane strip feeding roll, and the continuous rolling compaction of the front face membrane strip onto the welding strip group on the front face of the battery piece is realized through the arrangement of the rolling compaction device.
Preferably, the adhesive of the surface film strip and the back film strip adopts hot melt adhesive, and the battery string production equipment further comprises a hot melt part arranged at the back of the surface film strip feeding assembly, wherein the hot melt part is used for heating the battery string so as to fix the surface film strip and the back film strip on the battery string.
The production of the battery strings is realized by arranging the surface film strips and the back film strips into the form of hot melt adhesive, and the connection of the welding strips and the battery pieces is facilitated.
Preferably, the conveying part further comprises a heating component arranged below the conveying surface, and the heating component is used for heating the back film strip attached to the lower surface of the battery string.
The back film strip is attached through the arrangement of the heating component.
Preferably, the fixture comprises a mounting frame and pressing needle rows arranged on the mounting frame, wherein the pressing needle rows are arranged corresponding to the welding strip groups, and each pressing needle row is used for pressing one welding strip.
The arrangement of the pin pressing row realizes the uniform compaction of the welding strip, and avoids the situation that the welding strip cannot be adhered to the battery piece due to uneven stress.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the utility model and together with the description, serve to explain the principles of the utility model.
FIG. 1 is a partial view of a battery string production apparatus provided in one embodiment of the present utility model;
FIG. 2 is an enlarged view of a portion of FIG. 1A;
FIG. 3 is an enlarged view of a portion of FIG. 1B;
fig. 4 is a schematic structural diagram of a tooling according to an embodiment of the present utility model.
Wherein, the reference numerals are as follows:
1a conveying part; 2, a battery piece; 3, welding a band group; 4, back film strips; 5, fixing the membrane strip; 6, a positive mask strip; 7, tooling.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the utility model. Rather, they are merely examples of apparatus and methods consistent with aspects of the utility model as detailed in the accompanying claims.
The utility model provides a battery string production device, as shown in fig. 1, 2 and 3, which comprises a back surface film strip feeding part, a battery piece feeding part, a welding strip feeding part, a surface film strip feeding assembly and a conveying part 1, wherein: the back surface film strip feeding part is used for placing a plurality of parallel back surface film strips 4 on the conveying surface of the conveying part 1, and the conveying surface of the conveying part 1 drives the back surface film strips 4 to synchronously advance; the welding strip feeding part is used for providing welding strip groups 3 for the conveying part 1, and welding strips in the welding strip groups 3 are placed in one-to-one correspondence with the back film strips 4; the battery piece feeding part is used for providing the battery pieces 2 to the conveying part 1; the surface film strip feeding assembly is used for providing a surface film strip for the battery piece 2, the battery piece 2 and the welding strip group 3 are stacked into a battery string through the welding strip feeding part and the battery piece feeding part, so that the ith battery piece 2 is paved on the second half section of the ith welding strip group 3, the first half section of the (i+1) th welding strip group 3 is paved on the ith battery piece 2, the first half section of the (i+1) th welding strip group 3 is fixed on the ith battery piece 2, and the second half section of the (i) th welding strip group 3 is fixed on the ith battery piece 2 through the back film strip 4, wherein i is any natural number larger than 0.
In one implementation, the back film strip feeding portion continuously provides the back film strip 4 to the conveying portion 1, the conveying portion 1 drives the back film strip 4 required by the battery string in advance, and the welding strip feeding portion and the battery piece feeding portion alternately lay the welding strip group 3 and the battery piece 2 on the back film strip 4. Of course, the back side film strip feeding portion may output the back side film strip 4 step by step along with the feeding of the solder strip feeding portion and the battery piece feeding portion.
The back face membrane strips 4 are placed on the conveying part 1 side by side, the direction of the back face membrane strips 4 is consistent with the direction of the welding strips in the welding strip group 3, and the back face membrane strips 4 and the welding strips are in one-to-one correspondence.
In one implementation, the conveying part 1 comprises a conveying roller and a conveying belt, wherein the conveying belt is sleeved on the conveying roller, and negative pressure adsorption holes are formed in the conveying belt and used for adsorbing the battery pieces 2 and the back film strips 4.
In one implementation, the conveying part 1 conveys the back surface film strip 4 to the conveying surface, the welding strip feeding part places a first welding strip group on the back surface film strip 4, the battery strip feeding part places a first battery strip on the first welding strip group, the first battery strip is placed on the second half section of the first welding strip group, then the welding strip feeding device provides a second welding strip group for the conveying part 1, the first half section of the second welding strip group is placed on the front surface of the first battery strip, the second half section of the second welding strip group extends from above the first battery strip and is placed on the back surface film strip 4, the battery strip feeding part provides a second battery strip, the second battery strip is placed on the second half section of the second welding strip group, then the welding strip feeding device provides a third welding strip group, and the welding strip feeding device reciprocates in this way until the placement of the whole battery string is completed. The solder strips are adhered to the back of the battery plate 2 by a back side film strip 4. The surface film strip feeding assembly is used for providing a surface film strip for fixing the front welding strip of the battery piece 2 on the battery piece 2.
Through the setting of back face membrane strip feed portion, realized utilizing back face membrane strip 4 to fix the welding strip at the battery piece 2 back on battery piece 2, drive back face membrane strip 4 through conveying portion 1 and go forward in step and realized the continuous feed of back face membrane strip 4, and promoted the feed efficiency of back face membrane strip 4, the power supply that utilizes the conveyer belt also can save back face membrane strip 4 feedway's feed drive, equipment cost has been reduced, realized fixing battery piece 2 positive welding strip on battery piece 2 through the surface membrane strip, the battery piece 2 has been realized with the setting of welding strip through back face membrane strip feed portion and surface membrane strip feed assembly is fixed, the production of battery cluster has been accomplished.
In one implementation, the surface film strip feeding assembly includes a fixing film strip feeding portion for providing at least two fixing film strips 5 to the battery piece 2, the fixing film strips 5 being placed across the welding strip group 3; the at least one fixing film strip 5 is used for fixing the welding strip group 3 at the first end of the front surface of the battery piece 2; at least one fixing film strip 5 is used to fix the solder strip group 3 to the second end of the front surface of the battery plate 2.
The fixed film strip feeding part is used for fixing the first half section of a group of welding strips on the battery piece 2 after the welding strip feeding part is used for placing the first half section of the group of welding strips on the front surface of the battery piece 2 every time, so that the welding strips are prevented from being deviated in the subsequent conveying and stacking processes, and the quality of the produced battery strings is affected.
The welding strip group 3 is positioned on the front face of the battery piece 2 through the arrangement of the fixed film strip feeding part, and one film strip is simultaneously fixed on the front face of the battery piece 2 through the crossed placement of the fixed film strip 5 and the welding strip group 3.
In one implementation manner, the battery piece feeding part further comprises a tool carrying part, and the battery piece feeding part is used for carrying the battery pieces 2 and the tools 7 at the same time, so that the ith battery piece 2 is laid on the rear half section of the ith welding strip group 3, and the ith-1 tool 7 compresses the front half section of the ith welding strip group 3 above the ith-1 battery piece 2; or, the battery string production equipment further comprises a tool carrying device, wherein the tool carrying device is used for providing a tool 7 for the conveying part 1, and the tool 7 is used for pressing the first half section of the ith welding strip group 3 above the ith-1 battery piece 2; where i is any natural number greater than 0.
In one implementation, the conveying part 1 conveys the back surface film strip 4 to the conveying surface, the welding strip feeding part places a first welding strip group on the back surface film strip 4, the battery piece feeding part places a first battery piece on the first welding strip group, meanwhile, the tool carrying part in the battery piece feeding part also carries a tool 7, the tool 7 fixes the first half section of the first group of welding strips on the conveying part 1, the first battery piece is placed on the second half section of the first welding strip group, then the welding strip feeding device provides a second welding strip group for the conveying part 1, the first half section of the second welding strip group is placed on the front side of the first battery piece, the second half section of the second welding strip group extends from the upper side of the first battery piece and is placed on the back surface film strip 4, the battery piece feeding part provides a second battery piece, the tool carrying part places a tool 7 on the first half section of the second welding strip group at the same time to compress the first half section of the second welding strip group on the first battery piece, then the first welding strip group is placed on the first battery piece, and then the third welding strip group is placed on the back surface film strip group, and the third welding strip group is placed on the back surface film strip, and the welding strip string is placed, and the welding strip is completed. The solder strips are adhered to the back of the battery plate 2 by a back side film strip 4.
The step of placing the tool 7 by the tool carrying device and the tool carrying part is the same, and the difference is that the tool carrying device can be independently arranged, and the tool carrying device is independently used for carrying the tool 7, so that the movement of the tool carrying device and the movement of the battery piece feeding part are not mutually influenced.
The feeding of the tool 7 is realized through the tool carrying part or through the setting of the tool carrying device which is independently arranged, the positioning of the welding strip is realized through the tool 7, the welding strip is pressed onto the battery piece 2, and the better fixation of the welding strip onto the battery piece 2 by the back film strip 4 is realized.
In one implementation, the battery string production device further comprises a blanking device, the blanking device is arranged on the rear of the battery piece feeding portion or the tool conveying device, the blanking device comprises a tool pick-up portion and a tool moving portion, the tool pick-up portion is arranged on the driving end of the tool moving portion, and the tool moving portion is used for driving the tool pick-up portion to move away the tool 7 from the conveying portion 1.
The removal of the battery piece 2 after the welding strip on the back surface is fixed is realized through the arrangement of the blanking device.
In one implementation, the battery string production equipment further comprises a tool carrying part and a group of tools 7 which are placed on the conveying surface in advance, and the conveying part 1 drives the tools 7 to synchronously advance; the tool carrying part is used for circularly clamping a tool 7 farthest from the initial end of the conveying surface, and is also used for moving the tool 7 to the battery piece 2 of which the upper surface is paved with the front half section of the welding strip group 3 so as to compress the welding strip group 3 on the upper surface of the battery piece 2; or, the tool carrying part is used for circularly clamping a tool 7 farthest from the initial end of the conveying surface, and the tool carrying part is also used for moving the tool 7 to the battery piece 2 of which the welding band group 3 on the upper surface is fixed by the surface film strip so as to compress the welding band group 3 on the upper surface of the battery piece 2.
The tool 7 which is furthest from the initial end of the conveying surface is circularly clamped by the tool conveying part, and is placed above the battery piece 2 of the first half section of the welding strip group 3 laid on the surface or the battery piece 2 of which the upper surface welding strip group 3 is fixed by the surface film strip, so that the tool 7 can be circularly used, and the utilization efficiency of the tool 7 is improved.
In one implementation, in order to realize further fixing of the front welding strip of the battery piece 2, the surface film strip feeding assembly comprises a front film strip feeding part, the front film strip feeding part is used for synchronously pasting a plurality of front film strips 6 on the upper surface of the battery piece 2 along the advancing direction of the conveying part 1, and the front film strips 6 are in one-to-one correspondence with the welding strips of the welding strip group 3.
The welding strip group 3 on the front face of the battery piece 2 is fixed on the battery piece 2 through the arrangement of the front face film strip feeding part.
In one implementation, the front side membrane strip feed section includes a front side membrane strip feed roll that provides the front side membrane strip 6 to the battery string and a rolling compaction device that presses the front side membrane strip 6 against the battery string.
In one implementation, the front side film strip feed roll continuously feeds the front side film strip 6 of the battery piece 2, and the film strip is continuously rolled by the rolling pressing device to be pressed on the welding strip of the battery piece 2. The rolling compaction device comprises a roller, the roller is arranged above the conveying part 1, and the roller rotates when the conveying part 1 conveys the film strip 6 on the front face is compacted on the welding strip above the battery piece 2.
The feeding of the front face membrane strip 6 is realized through the arrangement of the front face membrane strip feeding roll, and the continuous rolling compaction of the front face membrane strip 6 to the welding strip group 3 on the front face of the battery piece 2 is realized through the arrangement of the rolling compaction device.
In one implementation, after the first half section of the welding set 3 is placed on the upper surface of the corresponding battery piece 2, the front film strip feeding portion attaches the front film strip 6 to the first half section of the welding set 3, and then the tooling 7 is placed to compress the front film strip 6, the battery piece 2 and the back film strip 4, so that the welding set 3 and the battery piece 2 remain relatively stationary in the moving process.
In one implementation, the front side film strip feeding portion presses the front side film strip 6 onto the welding strip group 3 on the front side of the battery piece after the tool 7 is removed from the battery piece 2.
In one implementation, the adhesive of the surface film strip and the back film strip 4 is a hot melt adhesive, and the battery string production device further comprises a hot melt part arranged at the back of the surface film strip feeding assembly, wherein the hot melt part is used for heating the battery string so as to fix the surface film strip and the back film strip 4 on the battery string.
The production of the battery strings is realized by arranging the surface film strips and the back film strips 4 into the form of hot melt adhesive, and the connection of the welding strips and the battery pieces 2 is facilitated.
In one implementation, the conveying part 1 further comprises a heating assembly arranged below the conveying surface, and the heating assembly is used for heating the back film strip 4 attached to the lower surface of the battery string.
The arrangement of the heating component realizes the accelerated coating of the back film strip 4.
In one implementation, as shown in fig. 4, the tooling 7 includes a mounting frame and press rows disposed on the mounting frame, where the press rows are disposed corresponding to the welding set 3, and each press row is used to compress one welding set.
The arrangement of the pin pressing row realizes the uniform compaction of the welding strip, and avoids the situation that the welding strip cannot be adhered to the battery piece 2 due to uneven stress.
In another aspect, the present utility model also provides a battery string production method, including: continuously supplying a plurality of back film strips 4 to the production line, and enabling the back film strips 4 to synchronously advance along with the production line; stacking the welding strip groups 3 and the battery pieces 2 on the back film strip 4 according to a preset sequence, so that the ith battery piece 2 is paved on the rear half section of the ith welding strip group 3, the front half section of the (i+1) th welding strip group 3 is paved on the ith battery piece 2, and the rear half section of each welding strip in the ith welding strip group 3 is paved on the back film strip 4 in a one-to-one correspondence manner; a surface film strip is attached to the upper surface of the battery piece 2 so as to bond the first half section of the (i+1) th welding strip group 3 to the front surface of the (i) th battery piece 2, wherein i is any natural number greater than 0.
The back side film strip 4 may be fed as required to provide the entire string of cells in advance, or may be fed stepwise with the stacked production of the battery cells 2 and the solder strips.
The feeding and laying of the back film strips 4 are realized by following the synchronous advancing mode of the assembly line through the back film strips 4, the feeding efficiency of the back film strips 4 is improved, the welding strips are bonded to the front face of the battery piece 2 through the arrangement of the surface film strips, and the battery piece 2 and the welding strips are integrally connected in series through the back film strips 4 and the surface film strips.
In one implementation manner, the surface film strips adhered to the upper surface of each battery piece 2 are at least two fixed film strips 5, the fixed film strips 5 fix the welding strip group 3 on the front surface of the battery piece 2, the fixed film strips 5 are vertical to the welding strip group 3 on the horizontal plane, and the battery string production method further comprises the step of pressing the back surface film strips 4 on the battery string by utilizing a tool 7; or, the film strips adhered on the upper surface of the battery piece 2 are a plurality of front film strips 6, each front film strip 6 covers one welding strip of the welding strip group 3, and the battery string production method further comprises the step of pressing the front film strips 6 and the back film strips 4 on the surface of the battery piece 2 by utilizing a tool 7; the battery string production method further comprises the step that after the tooling 7 presses the membrane strip on the surface of the battery piece 2, the tooling 7 is taken away.
The welding strip can be fixed on the battery string in advance by adopting the fixed film strip 5, then the welding strip and the battery piece 2 are connected in series by using the front film strip 6 in the subsequent process to form the battery string, or the front film strip 6 can be directly provided before the tooling 7 is placed after the back film strip 4 is laid, and then the back film strip 4 and the front film strip 6 are compressed with the battery piece 2 and the welding strip by utilizing the tooling 7 to form the battery string.
The welding strip group 3 is fixed on the front surface of the battery piece 2 through the fixing film strip 5, the welding strips borne by the back surface film strip 4 and the back surface film strip 4 are pressed and adhered to the battery piece 2 through the tool 7, the front surface of the battery piece 2 and the back surface welding strip are fixed, or the front surface welding strips of the welding strip 2 are adhered to the battery piece 2 through the plurality of pieces of front surface film strips 6 on the battery piece 2, the welding strips below the front surface film strip 6 and the welding strips above the back surface film strip 4 are pressed and adhered to the battery piece 2 through the tool 7, the production of a battery string is realized, and the subsequent battery string blanking is convenient after the tool 7 is taken away.
In one implementation manner, the surface film strips adhered to the upper surface of the battery piece 2 are at least two fixed film strips 5 and a plurality of front film strips 6, the fixed film strips 5 pre-fix the welding strip group 3 on the front surface of the battery piece 2, and the fixed film strips 5 are vertical to the welding strip group 3 on a horizontal plane; the battery string production method further comprises the steps of pressing the back surface film strip 4 on the battery piece 2 by using the tool 7, taking away the tool 7 after the tool 7 presses the back surface film strip 4 on the lower surface of the battery piece 2, covering the front surface film strip 6 on each welding strip of the welding strip group 3, and synchronously pressing the front surface film strip 6 on the upper surface of the battery piece 2 by the roller.
In order to ensure the pasting effect of the back surface film strip 4, after the welding strip and the battery piece 2 are stacked on the back surface film strip 4, the back surface film strip 4 can be pressed on the back surface of the battery piece 2 by the tool 7, then the tool 7 is moved away, the film strip is provided to the front surface of the battery piece 2, and the film strip is pressed above the front surface of the battery piece 2 by the roller. The mode of providing the back surface film strip 4 and then providing the front surface film strip 6 does not need to carry out sectional treatment on the film strip, the whole string of films are pasted, the films are not mutually affected, and the pasting efficiency of the film strip is improved.
The welding strip group 3 is pre-fixed through the fixed film strip 5, the pasting effect of the film strip 4 and the welding strip on the back surface of the battery piece 2 is better increased by utilizing the tool 7, and the final serial welding of the film strip 6 and the welding strip on the front surface of the battery piece 2 is realized through the arrangement of the film strip 6 on the front surface.
In one implementation, after the back surface film strip 4 and the surface film strip are both attached to the surface of the battery piece 2, the battery string production method further includes: and heating the battery piece 2 to enable the adhesive of the back film strip 4 and the surface film strip to be melted on the surface of the battery piece 2, and forming a battery string after the adhesive is solidified.
The back film strip 4, the surface film strip and the welding strip group 3 are firmly adhered with the battery piece 2 into strings by heating the battery piece 2. The serial production of the battery strings is accelerated.
Other embodiments of the utility model will be apparent to those skilled in the art from consideration of the specification and practice of the utility model disclosed herein. This utility model is intended to cover any variations, uses, or adaptations of the utility model following, in general, the principles of the utility model and including such departures from the present disclosure as come within known or customary practice within the art to which the utility model pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the utility model being indicated by the following claims.
It is to be understood that the utility model is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the utility model is limited only by the appended claims.
Claims (10)
1. The battery string production equipment is characterized by comprising a back surface film strip feeding part, a battery piece feeding part, a welding strip feeding part, a surface film strip feeding assembly and a conveying part, wherein:
the back film strip feeding part is used for placing a plurality of parallel back film strips on the conveying surface of the conveying part, and the conveying surface of the conveying part drives the back film strips to synchronously advance;
the welding strip feeding part is used for providing welding strip groups for the conveying part, and welding strips in the welding strip groups are placed in one-to-one correspondence with the back film strips;
the battery piece feeding part is used for providing battery pieces for the conveying part;
the surface film strip feeding assembly is used for providing a surface film strip for the battery piece,
the welding strip feeding part and the battery piece feeding part stack the battery pieces and the welding strip groups into a battery string so that an ith battery piece is paved on the rear half section of the ith welding strip group, the front half section of the (i+1) th welding strip group is paved on the ith battery piece,
the surface film strip fixes the first half section of the (i+1) th welding strip group on the (i) th battery piece, and the back film strip fixes the second half section of the (i) th welding strip group on the (i) th battery piece, wherein i is any natural number larger than 0.
2. The battery string production apparatus of claim 1, wherein the surface film strip feed assembly includes a fixed film strip feed for providing at least two fixed film strips to the battery sheet, the fixed film strips being disposed across the weld string group;
the fixing film strip is used for fixing the welding strip group at the first end of the front face of the battery piece;
and at least one fixing film strip is used for fixing the welding strip group at the second end of the front surface of the battery piece.
3. The apparatus for producing a battery string according to claim 1, wherein the battery piece feeding section further comprises a tooling handling section for handling the battery piece and the tooling at the same time,
so that the ith battery piece is laid on the second half section of the ith welding strip group, and the ith-1 tool compresses the first half section of the ith welding strip group above the ith-1 battery piece; or,
the battery string production equipment further comprises a tool carrying device, wherein the tool carrying device is used for providing tools for the conveying part, and the tools are used for pressing the first half section of the ith welding strip group above the ith-1 battery piece;
where i is any natural number greater than 0.
4. The apparatus for producing a battery string according to claim 3, further comprising a blanking device provided at the rear of the battery sheet feeding portion or the tooling conveyance device,
the blanking device comprises a tool pick-up part and a tool moving part, wherein the tool pick-up part is arranged at the driving end of the tool moving part, and the tool moving part is used for driving the tool pick-up part to move away the tool from the conveying part.
5. The battery string production apparatus according to claim 1, further comprising a tooling handling section and a set of tooling pre-placed on the conveying surface, the conveying section driving the tooling to advance synchronously;
the tool carrying part is used for circularly clamping the tool furthest from the initial end of the conveying surface, and is also used for moving the tool to the battery piece of which the upper surface is paved with the first half section of the welding strip group so as to compress the welding strip group on the upper surface of the battery piece;
or alternatively, the first and second heat exchangers may be,
the tool carrying part is used for circularly clamping the tool furthest from the initial end of the conveying surface, and is also used for moving the welding strip group on the upper surface of the tool to be fixed by the surface film strip on the battery piece so as to compress the welding strip group on the upper surface of the battery piece.
6. The battery string production apparatus according to any one of claims 1 to 5, wherein the surface film strip feeding assembly includes a front film strip feeding portion for synchronously attaching a plurality of front film strips to the upper surface of the battery sheet along the advancing direction of the conveying portion, the front film strips being in one-to-one correspondence with the welding strips of the welding strip group.
7. The battery string production apparatus according to claim 6, wherein the front side film strip supply section includes a front side film strip supply roll that supplies the front side film strip to the battery string, and a rolling pressing device that presses and applies the front side film strip to the battery string.
8. The battery string production apparatus of claim 1, wherein the adhesive of the face film strip and the back film strip is a hot melt adhesive, and further comprising a hot melt portion disposed downstream of the face film strip supply assembly, the hot melt portion being configured to heat the battery string to secure the face film strip and the back film strip to the battery string.
9. The battery string production apparatus according to claim 1 or 8, wherein the conveying section further includes a heating member provided below the conveying surface, the heating member being configured to heat a back surface film strip attached to a lower surface of the battery string.
10. The battery string production apparatus according to any one of claims 3 to 5, wherein the tooling includes a mounting frame and presser rows provided on the mounting frame, the presser rows being provided in correspondence with the solder strip groups, each presser row being for pressing one solder strip.
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| CN202223086453.XU CN219626613U (en) | 2022-11-16 | 2022-11-16 | Battery string production equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115763329A (en) * | 2022-11-16 | 2023-03-07 | 无锡奥特维科技股份有限公司 | A battery string production equipment and production method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115763329A (en) * | 2022-11-16 | 2023-03-07 | 无锡奥特维科技股份有限公司 | A battery string production equipment and production method |
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