CN113937190A - Battery string production method and equipment - Google Patents
Battery string production method and equipment Download PDFInfo
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- CN113937190A CN113937190A CN202111192045.XA CN202111192045A CN113937190A CN 113937190 A CN113937190 A CN 113937190A CN 202111192045 A CN202111192045 A CN 202111192045A CN 113937190 A CN113937190 A CN 113937190A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/18—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
- H01L31/20—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof such devices or parts thereof comprising amorphous semiconductor materials
- H01L31/206—Particular processes or apparatus for continuous treatment of the devices, e.g. roll-to roll processes, multi-chamber deposition
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/18—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
- H01L31/1876—Particular processes or apparatus for batch treatment of the devices
- H01L31/188—Apparatus specially adapted for automatic interconnection of solar cells in a module
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/02—Details
- H01L31/02002—Arrangements for conducting electric current to or from the device in operations
- H01L31/02005—Arrangements for conducting electric current to or from the device in operations for device characterised by at least one potential jump barrier or surface barrier
- H01L31/02008—Arrangements for conducting electric current to or from the device in operations for device characterised by at least one potential jump barrier or surface barrier for solar cells or solar cell modules
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/042—PV modules or arrays of single PV cells
- H01L31/05—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/042—PV modules or arrays of single PV cells
- H01L31/05—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells
- H01L31/0504—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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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
Abstract
The invention discloses a battery string production method, which comprises the steps of arranging N battery pieces and N back membrane pieces at intervals to form N laying units, laying a welding strip group and a front membrane piece on each laying unit, wherein the front membrane piece is positioned at the top of the welding strip group; fixedly connecting the welding strip group, the front diaphragm and the laying unit into a whole to form a battery unit; and connecting the N battery units in series to obtain battery string fragments, connecting the battery string fragments in series to form a long string, and cutting the long string at the cutting gap to obtain the battery string. The invention also provides battery string production equipment which comprises a film making unit, a battery piece supply unit and a welding strip preparation unit, wherein the film making unit, the battery piece supply unit and the welding strip preparation unit can prepare battery pieces, front diaphragms, back diaphragms and welding strip groups, the manipulator unit can realize multiple groups of welding strip groups and front diaphragm laying, meanwhile, the first curing unit works to obtain battery units, and the transferring unit conveys multiple groups of battery units to the connecting platform for series connection.
Description
Technical Field
The invention relates to the technical field of solar cells, in particular to a method and equipment for producing a cell string.
Background
PERC + cells (emitter and back passivation cells), TOPCon (tunneling oxide passivation contact technology) cells, heterojunctions, perovskites, laminates, and solar cell technology are developing at a high rate, and efficiency is continuously improved. Meanwhile, the photovoltaic module packaging technology and packaging materials also need to be continuously improved to match the technical requirements of different batteries. The heterojunction battery has a series of advantages of high conversion efficiency, simple manufacturing process, application of thin silicon wafers, low temperature coefficient, no light attenuation and potential attenuation, double-sided power generation and the like. However, a series of technical challenges are faced in manufacturing a photovoltaic module by using the heterojunction cell, especially the characteristic that the heterojunction cell has poor high temperature resistance, and the welding temperature cannot exceed 200 ℃, so that the interconnection and lamination process suitable for the heterojunction cell and the photovoltaic module needs to be developed specifically.
At present, an independent machine is generally adopted to combine a film and a welding strip into a shaft-shaped conductor plate, then the conductor plate is connected with a battery piece on a series welding machine to produce a battery string, the manufactured shaft-shaped conductor plate can only adapt to the production of the battery piece with one specification or the production of a single variety of battery string units, and the change of the interval between the battery string pieces and the interval between the battery strings can not be adapted; in addition, in the existing scheme, the production of a single battery piece is used as a series welding cycle to continuously manufacture the battery string, and the productivity of the production method of the battery string in the prior art is very low.
Therefore, how to change the current situation that the production efficiency of the battery string is low in the prior art becomes a problem to be solved urgently by those skilled in the art.
Disclosure of Invention
The invention aims to provide a method and equipment for producing a battery string, which are used for solving the problems in the prior art and improving the production efficiency of the battery string.
In order to achieve the purpose, the invention provides the following scheme: the invention provides a battery string production method, which comprises a battery string segment preparation process, a string assembly process and a battery string blanking process, wherein the battery string segment preparation process comprises the following steps:
arranging N battery pieces and N back membranes at intervals to form N laying units, wherein each laying unit comprises one battery piece and one back membrane piece, and N is an integer not less than 2;
paving welding strip groups and front membrane sheets on the paving units, wherein in each paving unit, the welding strip groups extend from the battery sheets to the back membrane sheets, and the front membrane sheets cover the battery sheets and the welding strip groups;
fixedly connecting the welding strip group, the front diaphragm and the laying unit into a whole to form N battery units;
connecting N battery units in series to obtain battery string fragments, and continuously performing the battery string fragment preparation procedure to continuously output the battery string fragments to the string assembly procedure;
the string assembling process comprises the following steps:
connecting the current battery string segment with the battery string segment obtained before in series to form a long string, wherein a cutting gap is reserved at a preset position of the long string;
the battery string blanking process comprises the following steps:
and cutting the long string at the cutting gap to form a battery string.
Preferably, the preparation process of the cell string segment further comprises the steps of synchronously preparing a cell, a diaphragm and a welding strip group, wherein the diaphragm comprises a back diaphragm and a front diaphragm, and then preparing the laying unit;
the welding band group completes laying on all the laying units at one time, and the front-side membrane is laid on all the laying units at one time along with the welding band group.
Preferably, in the step of preparing the cell string segments, the laying of the N cell pieces is completed by one-time feeding, and then the laying of the N back-side membranes is completed by one-time feeding.
Preferably, preparing the membrane sheet comprises:
drawing the film, and cutting the film into N pieces of front side film pieces and N pieces of back side film pieces, wherein N vacant positions larger than the width of the battery piece are formed on the same side of the N pieces of back side film pieces;
arranging N battery pieces and N back diaphragm intervals specifically includes:
and feeding N battery pieces at one time to fill the vacant positions.
Preferably, the manner of forming N empty spaces larger than the width of the battery piece on the same side of N pieces of the back film pieces comprises:
the method comprises the steps of cutting a membrane into 2N membranes after the membrane is pulled out, removing one membrane at intervals of one membrane, using the remaining N membranes as the back membrane, and forming N vacant sites after the membranes are removed.
Preferably, the removed membrane is turned 180 degrees to serve as N pieces of front membrane.
Preferably, connecting N of the battery cells in series comprises:
in any two adjacent battery units, the battery piece in one battery unit is covered on the welding strip group of the back membrane in the other battery unit and then is fixedly connected into a whole.
Preferably, the welding strip group, the front membrane and the laying unit are fixedly connected into a whole in a heating mode.
The invention also provides a battery string production device which can realize the battery string production method.
The present invention also provides a battery string production apparatus comprising:
a battery sheet supply unit capable of supplying battery sheets;
a film forming unit capable of preparing a back film and a front film while the battery sheet is supplied from the battery sheet supply unit;
a solder ribbon preparation unit capable of preparing a solder ribbon group while the battery sheet is supplied by the battery sheet supply unit;
the manipulator unit can arrange N battery pieces and N back membrane pieces at intervals to form N laying units, each laying unit comprises one battery piece and one back membrane piece, and N is an integer not less than 2; the manipulator unit can also lay the solder strip group and the front membrane on the laying unit, so that in each laying unit, the solder strip group extends from the battery piece to the back membrane, and the front membrane covers the battery piece and the solder strip group;
the first curing unit can enable the laying unit, the welding strip group and the front diaphragm to be fixedly connected into a whole to form a battery unit;
the transferring unit can enable two adjacent battery units to be arranged according to the serial requirement in the process of conveying the battery units;
the connecting platform can bear the battery units and connect the N battery units to obtain battery string fragments; the connecting platform further connects the currently obtained cell string segments with the previously obtained cell string segments to form a long string, the distance between the currently obtained cell string segments and the previously obtained cell string segments is arranged by the transfer unit according to the serial requirement, and a cutting gap is reserved at a preset position of the long string;
the cutting unit is arranged at one end, far away from the film making unit, of the connecting platform, and the cutting unit can cut off the long string at the cutting gap to obtain the battery string.
Preferably, the film preparation unit comprises a film placing mechanism, a film pressing mechanism, a traction mechanism, a film cutting mechanism and a film applying module;
the film laying mechanism can be used for installing film reels, 2N film laying modules are arranged in parallel along the arrangement direction of the back diaphragm and the battery piece, the film laying modules can bear the back diaphragm and the battery piece, the film pressing mechanism is arranged between the film laying modules and the film laying mechanism, the film pressing mechanism can press films led out by the film reels, the traction mechanism can be connected with the film laying modules in a sliding mode, the sliding direction of the traction mechanism relative to the film laying modules is parallel to the arrangement direction of the film laying modules, the film laying mechanism can be matched with the traction mechanism to lay the films led out by the film reels on the film laying modules in a smooth mode, and the film cutting mechanism can cut the films led out by the film reels to form the back diaphragm and the front diaphragm.
Preferably, the first curing unit is built into the film application module.
Preferably, the spacing between adjacent film application modules is adjustable.
Preferably, a gap is formed between every two adjacent film applying modules, the film cutting mechanism comprises a blade and a connecting rod, the connecting rod is connected with the film applying modules in a sliding mode, the sliding direction of the connecting rod relative to the film applying modules is perpendicular to the arrangement direction of the film applying modules, the connecting rod is located at the bottom of the film applying modules, the blade extends into the gap between every two adjacent film applying modules, and the blade can cut the film led out from the film reel.
Preferably, the cell sheet supply unit comprises a conveyer belt capable of bearing and conveying the cell sheet, the conveyer belt is arranged on one side of the film preparation unit, and the conveyer belt is parallel to the arrangement direction of the film application modules.
Preferably, the welding strip preparation unit comprises a base, a welding strip shaping mechanism and a cutter mechanism, wherein the welding strip shaping mechanism and the cutter mechanism are arranged on the base, and the welding strip shaping mechanism and the cutter mechanism are arranged along the length direction of the welding strip group; the welding strip shaping mechanism can bend the welding strip group to enable the welding strip group to form a Z-shaped bend matched with the thickness of the battery piece, the cutter mechanism is slidably arranged on the base, the sliding direction of the cutter mechanism relative to the base is parallel to the length direction of the welding strip group, and the cutter mechanism can cut off the welding strip group.
Preferably, the cutter mechanism comprises a cutting assembly and a fixing assembly, the fixing assembly can clamp the solder strip group, the fixing assembly is arranged on two sides of the cutting assembly, the cutting assembly comprises a cutting blade, the cutting blade can slide in a reciprocating manner relative to the fixing assembly, and the sliding direction of the cutting blade relative to the fixing assembly is perpendicular to the length direction of the solder strip group;
the welding strip preparation unit further comprises a strip supply assembly, the strip supply assembly is arranged close to the welding strip shaping mechanism, and the strip supply assembly can provide the welding strip group for the welding strip shaping mechanism.
Preferably, the manipulator unit comprises a beam, and a belt conveying mechanism and a sheet conveying mechanism which are movably arranged on the beam, wherein the beam is arranged across the film preparing unit, the battery sheet supplying unit and the welding belt preparing unit; the belt conveying mechanism and the sheet conveying mechanism are respectively arranged on the cross beam in a sliding mode, and the sliding direction of the belt conveying mechanism and the sheet conveying mechanism relative to the cross beam is perpendicular to the arrangement direction of the film coating modules.
Preferably, the band conveying mechanism comprises a plurality of groups of clamping hands, and the clamping hands can clamp the welding band group prepared by the welding band preparation unit and convey the welding band group to the film coating module;
the film conveying mechanism comprises a fixing piece, film conveying hands and film conveying hands, the fixing piece is slidably arranged on the cross beam, the film conveying hands and the film conveying hands are respectively arranged on two sides of the fixing piece, the film conveying hands are rotatably connected with the fixing piece, the rotation axis of the film conveying hands relative to the fixing piece is parallel to the plane where the film coating module is located, and the number of the film conveying hands are N and are in one-to-one correspondence; the arrangement directions of the film conveying hand and the film conveying hand are parallel to the arrangement direction of the film applying module;
the belt conveying mechanism and the sheet conveying mechanism are both connected with a lifting mechanism, and the lifting mechanism can drive the belt conveying mechanism and the sheet conveying mechanism to reciprocate along the vertical direction.
Preferably, the film application module is provided with a groove matched with the film conveying hand, and the film conveying hand can extend into the groove.
Preferably, a transfer table is further arranged between the film making unit and the connecting platform, the transfer table is connected with the film making unit, and the transfer table can bear the battery unit; the transfer unit comprises a transfer hand which can transfer the battery unit on the transfer platform to the connecting platform, and the transfer unit is arranged on one side of the transfer platform.
Preferably, the film application module, the film conveying hand and the transfer hand each have a vacuum chuck capable of sucking the battery sheet, the film drawn out from the film reel, and the battery unit.
Preferably, a second curing unit is arranged inside the connecting platform, so that the battery units after being connected in series can be fixedly connected into a whole to form the battery string segments, and two adjacent battery string segments are fixedly connected into a whole to form the long string.
Preferably, the first curing unit and the second curing unit are both heating units.
Preferably, the cell slice supply unit is connected with a scribing mechanism capable of dividing a whole cell slice into the cell slices, and the scribing mechanism is arranged at one end of the cell slice supply unit far away from the connecting platform.
The membrane unit includes that positive diaphragm prepares line, back diaphragm preparation line and at least one module platform, the module platform is used for bearing the positive diaphragm with the back diaphragm, the positive diaphragm preparation line with the structure of back diaphragm preparation line is the same, and all includes:
the film laying mechanism comprises a film laying mechanism, a film pressing mechanism, a traction mechanism, a film cutting mechanism and a film applying module, wherein the film applying module in the front film preparation line is used for bearing the front film, and the film applying module in the back preparation line is used for bearing the back film;
the film releasing mechanism is used for installing a film reel, wherein the film releasing mechanism in the front-surface film preparation line is used for installing a front-surface film reel, and the film releasing mechanism in the back-surface film preparation line is used for installing a back-surface film reel;
the film coating modules are arranged in parallel, and the extension direction of the module platform is parallel to the arrangement direction of the film coating modules.
Compared with the prior art, the invention has the following technical effects: the invention provides a battery string production method, which comprises a battery string segment preparation process, a string assembling process and a battery string blanking process, wherein the battery string segment preparation process comprises the following steps: arranging N battery pieces and N back membranes at intervals to form N laying units, wherein each laying unit comprises a battery piece and a back membrane, and N is an integer not less than 2; laying solder strip groups and front-side membranes on the N laying units, wherein in each laying unit, the solder strip groups extend from the battery piece to the back-side membrane, and the front-side membranes are laid on the battery pieces and cover the solder strip groups on the battery pieces; the welding strip group, the front diaphragm and the laying unit are fixedly connected into a whole to form N battery units; connecting N battery units in series to obtain battery string fragments, and continuously performing a battery string preparation procedure to continuously output the battery string fragments to a string assembly procedure; the string assembling process comprises the steps of connecting the current obtained battery string segments with the previous obtained battery string segments in series to form a long string, wherein a cutting gap is reserved at a preset position of the long string; the battery string blanking process includes cutting the long string at the cutting gap to form the battery string.
According to the method for producing the battery string, each welding strip group is in contact and connection with the front side of the first battery piece and the back side of the second battery piece in the two adjacent battery pieces, each welding strip group and the battery pieces are fixed through the front side membrane and the back side membrane to form the battery units, N battery units are connected in series to obtain the battery string fragments, the battery string fragments are connected in series to obtain the long string, and the battery string is obtained finally through segmentation. According to the production method of the battery string, the production link of the middle shaft coiled conductor plate is removed, a plurality of battery pieces, a plurality of groups of welding strip groups and/or a plurality of membrane pieces can be directly laid into a plurality of groups of battery units at one time, the yield in unit time is improved in a multiplied manner, and the production efficiency of the battery string is obviously improved. Meanwhile, as the shaft-shaped conductor plate is not adopted, the invention can flexibly adjust the technological parameters of the cutting specification of the diaphragm size, the cell spacing and the length of the welding strip group, thereby realizing the diversified production of the cell string.
The invention also provides battery string production equipment which comprises a battery piece supply unit, a film making unit, a welding strip preparation unit, a manipulator unit, a first curing unit, a transferring unit, a connecting platform and a splitting unit, wherein the battery piece supply unit can supply battery pieces; the film preparation unit can prepare a back diaphragm and a front diaphragm when the cell supply unit supplies the cell, and the welding strip preparation unit can prepare a welding strip group; the manipulator unit can arrange N battery pieces and N back diaphragms at intervals to form N laying units, each laying unit comprises a battery piece and a back diaphragm, and N is an integer not less than 2; the manipulator unit can also lay the welding strip group and the front diaphragm on the laying units, so that in each laying unit, the welding strip group extends from the battery piece to the back diaphragm, and the front diaphragm covers the battery piece and the welding strip group; the first curing unit can enable the laying unit, the welding strip group and the front diaphragm to be fixedly connected into a whole to form a battery unit; the transferring unit can enable two adjacent battery units to be arranged according to the serial requirement in the process of conveying the battery units; the connecting platform can bear the battery units and connect the N battery units to obtain a battery string fragment, the connecting platform further connects the currently obtained battery string fragment with the previously obtained battery string fragment to form a long string, the distance between the currently obtained battery string fragment and the previously obtained battery string fragment is arranged by the transfer unit according to the serial requirement, and a cutting gap is reserved at a preset position of the long string; the segmentation unit sets up the one end of keeping away from the membrane unit at connection platform, and the segmentation unit can cut off long cluster in order to obtain the battery cluster at the clearance of cutting off.
According to the battery string production equipment, the film preparation unit, the battery piece supply unit and the welding strip preparation unit can be used for preparing the battery pieces, the front diaphragm, the back diaphragm and the welding strip group, the manipulator unit can be used for realizing multiple groups of welding strip groups and front diaphragm laying, meanwhile, the first curing unit works to obtain the battery units, the transfer unit conveys multiple groups of battery units to the connecting platform for connection to obtain battery string fragments, the connecting platform further connects the battery string fragments in series to obtain long strings, and the battery strings are obtained finally through segmentation. The battery string production equipment has a simple process route, can simultaneously prepare at least two battery units, improves the yield in unit time, and meets the aim of efficiently producing the battery string; meanwhile, the technical parameters of the cutting specification, the cell spacing and the length of the welding strip group of the diaphragm can be flexibly adjusted, so that the aim of diversified production of the cell string is fulfilled.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic flow chart of a method for producing a battery string according to the present invention;
FIG. 2 is a schematic structural view of a battery string production apparatus of the present invention;
fig. 3 is a schematic structural diagram of a solder strip preparation unit, a film preparation unit, a cell sheet supply unit and a manipulator unit in the battery string production equipment of the present invention;
FIG. 4 is a schematic view of the structure of FIG. 3 in operation;
FIG. 5 is a schematic structural diagram of a solder strip preparation unit and a strip conveying mechanism of the battery string production apparatus of the present invention;
FIG. 6 is an enlarged schematic view of a portion of the structure of the solder strip preparation unit of FIG. 5;
fig. 7 is a schematic structural view of a film forming unit of the battery string production apparatus of the present invention;
FIG. 8 is a schematic view showing a structure of a robot unit of the battery string producing apparatus according to the present invention;
FIG. 9 is a schematic structural diagram of a manipulator unit laying welding strip group and a front diaphragm on a film coating module of the battery string production equipment of the invention;
fig. 10 is a schematic structural view of a sheet conveying mechanism of the battery string production apparatus of the present invention;
fig. 11 is a schematic diagram of the station arrangement of the battery string production method of the present invention;
fig. 12 is a schematic view of the battery string producing apparatus of the present invention cutting off a continuous battery string while operating;
FIG. 13 is a schematic diagram of the battery string production apparatus of the present invention after laying of the battery sheet and the back film sheet is completed during the operation of single roll film supply;
fig. 14 is a schematic diagram of the battery string production apparatus after laying of the battery pieces and the back membrane is completed when the double-roll film supply works;
FIG. 15 is a schematic view of the battery string manufacturing apparatus of the present invention in operation with the solder ribbon stack and the front side membrane laid;
fig. 16 is a schematic view of the battery string production apparatus of the present invention in operation, laid to form battery cells;
fig. 17 is a schematic view of a battery string production apparatus according to the present invention, in which battery cells are connected in series to form a battery string.
Wherein, 1 is a battery piece, 2 is a back film piece, 3 is a laying unit, 4 is a welding belt group, 5 is a front film piece, 6 is a battery unit, 7 is a battery string, 8 is a film making unit, 801 is a film placing mechanism, 802 is a film pressing mechanism, 803 is a traction mechanism, 804 is a film cutting mechanism, 804a is a blade, 804b is a connecting rod, 805 is a film applying module, 806 is a driving motor, 9 is a battery piece supplying unit, 901 is a conveying belt, 902 is a scribing mechanism, 10 is a welding belt preparing unit, 1001 is a base, 1002 is a welding belt shaping mechanism, 1003 is a cutter mechanism, 1003a is a cutting assembly, 1003b is a fixing assembly, 1103c is a cutting edge, 1003 is a belt supplying assembly, 11 is a manipulator unit, 1101 is a beam, 1102 is a belt conveying mechanism, 1102a is a clamping hand, 1103 is a conveying mechanism, 1103a is a fixing piece, 1103b is a conveying hand, c is a conveying hand, 1103d is a driving shaft, 1104 is a lifting mechanism, 12 is a transfer unit, 1201 is a transfer hand, 13 is a connecting platform, 14 is a transfer table, 15 is a vacuum chuck, and 16 is a cutting unit.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a method and equipment for producing a battery string, which are used for solving the problems in the prior art and improving the production efficiency of the battery string.
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.
Referring to fig. 1-17, wherein fig. 1 is a schematic flow chart of a battery string production method of the present invention, S1-S4 are step numbers capable of showing material changes on a film coating module, fig. 2 is a schematic structural diagram of a battery string production apparatus of the present invention, fig. 3 is a schematic structural diagram of a solder ribbon preparation unit, a film making unit, a battery sheet supply unit and a manipulator unit in a battery string production apparatus of the present invention, fig. 4 is a schematic diagram of the structure in fig. 3 during operation, fig. 5 is a schematic structural diagram of a solder ribbon preparation unit and a tape transport mechanism of a battery string production apparatus of the present invention, fig. 6 is an enlarged schematic diagram of a part of the structure of the solder ribbon preparation unit in fig. 5, fig. 7 is a schematic structural diagram of a film making unit of the battery string production apparatus of the present invention, fig. 8 is a schematic structural diagram of a manipulator unit of the battery string production apparatus of the present invention, fig. 9 is a schematic structural diagram of a manipulator unit of a battery string production apparatus of the present invention laying a solder ribbon group and a front face film on a film coating module Fig. 10 is a schematic structural view of a sheet conveying mechanism of the battery string production apparatus of the present invention, fig. 11 is a schematic view showing the arrangement of stations in the battery string producing method of the present invention, fig. 12 is a schematic view showing the cutting of a continuous battery string in the operation of the battery string producing apparatus of the present invention, FIG. 13 is a schematic view of the battery string production apparatus of the present invention after laying of the battery sheet and the back film sheet is completed in the single roll film supply operation, figure 14 is a schematic view of the battery string production equipment of the invention after the laying of the battery piece and the back film piece is completed in the double-roll film supply work, figure 15 is a schematic view of the present invention battery string manufacturing apparatus in operation with the solder ribbon stack and front side membrane laid, figure 16 is a schematic view of the battery string producing apparatus of the present invention in operation laid to form battery cells, fig. 17 is a schematic view of a battery string production apparatus according to the present invention, in which battery cells are connected in series to form a battery string.
The invention provides a battery string production method, which comprises a battery string segment preparation process, a string assembling process and a battery string blanking process, wherein the processes are connected in sequence in the actual production process, and the battery string segment preparation process comprises the following steps: arranging N battery pieces 1 and N back membranes 2 at intervals to form N laying units 3, wherein each laying unit 3 comprises a battery piece 1 and a back membrane 2, and N is an integer not less than 2; laying welding strip groups 4 and front-side membranes 5 on the laying units 3, wherein in each laying unit 3, the welding strip groups 4 extend from the battery piece 1 to the back-side membrane 2, and the front-side membranes 5 are laid on the battery piece 1 and cover the welding strip groups 4 on the battery piece 1; the welding strip group 4, the front diaphragm 5 and the laying unit 3 are fixedly connected into a whole to form N battery units 6; the N battery cells 6 are connected in series to obtain a battery string segment, and it should be noted that the battery string segment preparation process which is continuously performed continuously outputs the battery string segment to the string assembly process;
the string forming process comprises the following steps: connecting the current obtained battery string segment with the previous obtained battery string segment in series to form a long string, wherein a cutting gap is reserved at a preset position of the long string;
the battery string blanking process comprises the following steps: the long string is cut at the cutting gap to form a battery string 7.
It should be noted here that the N cell pieces 1 and the N back membrane pieces 2 arranged at intervals may also be referred to as that the N cell pieces 1 and the N back membrane pieces 2 are arranged in a staggered manner, and more specifically, if the letter "a" is used to refer to the cell piece 1 and the letter "B" is used to refer to the back membrane piece 2, the interval arrangement is specifically in the form of "ABABAB".
It will be understood by those skilled in the art that the preset positions in the above embodiments are not unique, and in the actual production process, the preset positions in the long string may be adjusted accordingly according to the change of the specification of the assembly, so that the cut battery string can be adapted to the actual specification of the assembly. The cutting gap may vary according to different technical requirements, but in general, a section of solder strip should be left at both ends of the battery string obtained after the long string is cut at the cutting gap so as to realize the series connection or the parallel connection of the battery strings.
Referring to fig. 1, the portion of S4 in fig. 1 that is selected by the dashed line is the battery string segment in the above embodiment, during the continuous production process, the long string formed by serially connecting the battery string segments can refer to the upper schematic diagram in fig. 12, and the battery string formed after cutting is as shown in the lower diagram in fig. 12.
According to the method for producing the battery string, each welding strip group 4 is in contact and connection with the front surface of a first battery piece 1 and the back surface of a second battery piece 1 in two adjacent battery pieces 1, each welding strip group 4 and the battery pieces 1 are fixed through a front membrane 5 and a back membrane 2 to form battery units 6, N battery units 6 are connected in series to obtain battery string segments, and the battery string segments are connected in series and cut at a reserved cutting gap to finally obtain the battery string 7. According to the production method of the battery string, the production link of the middle shaft coiled conductor plate is removed, the plurality of battery pieces 1, the plurality of groups of welding strip groups 4 and/or the plurality of membrane pieces can be directly laid into the plurality of groups of battery units 6 at one time, the yield in unit time is improved in a multiplied manner, and the production efficiency of the battery string 7 is obviously improved. Meanwhile, as a shaft-wound conductor plate is not adopted, the invention can flexibly adjust the technological parameters of the cutting specification of the diaphragm size, the interval of the battery pieces 1 and the length of the welding strip group 4, thereby realizing the diversified production of the battery string 7.
As can be understood by those skilled in the art, the cell sheet 1, the front diaphragm 5 and the back diaphragm 2 in the above cell string production method can be purchased and used directly, or can be prepared on site, and the optimized solution in the cell string production method disclosed in this embodiment is as follows:
the battery string segment preparation process further comprises: synchronously preparing a battery piece 1, a diaphragm and a welding strip group 4, wherein the diaphragm comprises a back diaphragm 2 and a front diaphragm 5, and then preparing a laying unit 3;
besides the synchronous preparation of the cell 1, the membrane and the solder strip group 4, further optimization methods can also include: the welding strip group 4 is paved on all the paving units 3 at one time, and the front diaphragm 5 is paved on all the paving units 3 at one time along with the welding strip group 4, so that the production efficiency of the battery string 7 can be effectively improved, and the production time is saved.
It should be noted that "synchronization" in the embodiment of the present invention should not be construed narrowly to mean that the same operation is performed simultaneously, but should be construed to mean that the cell sheet 1, the membrane sheet, and the solder ribbon group 4 are produced in a matching manner in number at the same time.
The term "immediately following" in the one-off deposition of the front-side film 5 immediately following the solder ribbon pack 4 on all deposition units 3 is to be understood as: after the welding strip group 4 falls on the laying unit 3, the front diaphragm 5 covers the laying unit 3 and the welding strip group 4 in a short time, and the purpose is to avoid the welding strip group 4 from tilting or moving.
In the preparation process of the battery string segment in the embodiment, the laying of the N battery pieces 1 is completed by one-time feeding, and then the laying of the N back-side membranes 2 is completed by one-time feeding, so as to ensure higher production efficiency.
In the actual production process, the membrane is drawn out and then cut into N pieces of front membrane sheets 5 and N pieces of back membrane sheets 2, and N vacant sites with the width larger than that of the battery piece 1 are formed on the same side of the N pieces of back membrane sheets 2; and then the N battery pieces 1 and the N back membranes 2 are arranged at intervals in a mode of feeding the N battery pieces 1 to fill the vacant positions at one time.
In this embodiment, the manner of forming N empty spaces larger than the width of the cell sheet 1 on the same side of the N back film sheets 2 includes: the membrane is pulled out and cut into 2N pieces of membranes, then one membrane is removed every other membrane, N vacant sites are formed after the membranes are removed, and the remaining N pieces of membranes are used as the back membrane 2. Therefore, in the present embodiment, the removed film is turned 180 ° to serve as the front film 5, which facilitates the front film 5 to fix the solder ribbon assembly 4 on the front surface of the battery piece 1, and this is a single-reel film supply method, as shown in fig. 13.
Besides, the manner of forming N empty spaces larger than the width of the battery piece 1 on the same side of the N pieces of back film pieces 2 may further include: the front diaphragm 5 and the back diaphragm 2 adopt different reels for film supply, the film is cut into N pieces of front diaphragms 5 and N pieces of back diaphragms 2 after being pulled out, and then N vacant sites larger than the width of the battery piece 1 are formed on the same side of the N pieces of back diaphragms 2 in a separation mode (namely, the distance between two adjacent back diaphragms 2 is enlarged);
further, the N battery pieces 1 and the N back membranes 2 are arranged at intervals by feeding the N battery pieces 1 to fill the empty positions at one time, as shown in fig. 14.
In addition, before the solder strip group 4 is laid on all the laying units 3, the method further comprises a step of preparing the solder strip group 4, and the step of preparing the solder strip group 4 comprises the following steps: and connecting the welding strip group 4 with the gap between two adjacent battery pieces 1 for bending, so that the welding strip group 4 has a Z-shaped bend matched with the thickness of the battery pieces 1, and cutting the welding strip group 4 into a length matched with the laying unit 3. The welding strip group 4 is bent into a Z shape, so that the thickness difference of two adjacent battery pieces 1 after being connected in series is reduced, the connection integrity of the battery pieces 1 and the diaphragm is ensured, and the hidden crack of the edge of the battery piece 1 caused by the follow-up procedures is avoided.
Specifically, connecting N battery cells 6 in series includes: in two adjacent battery units 6, the battery sheet 1 in one battery unit 6 is laid to the top of the back diaphragm 2 in the other battery unit 6, so that the battery units 6 are fixedly connected into a whole to form a battery string segment, the battery string segments are connected in series to obtain a long string, and the battery string 7 is finally obtained through segmentation. The production method of the invention can produce more than two battery units 6 at one time, and improves the production efficiency of the battery string 7 by times compared with the mode of taking a single battery as a production unit in the prior art.
The curing method is not particularly limited in the above embodiments, and those skilled in the art will understand that heating to melt the front surface film 5 and the back surface film 2 and then cooling to achieve curing is currently a feasible curing method, and of course, as the technology advances, there may be more various curing methods, such as irradiation, curing by applying pressure, etc.; this is not particularly limited in this document, and should be taken as a term of cure as long as the cure is achieved.
Meanwhile, the invention also provides battery string production equipment, which comprises a film preparation unit 8, a battery piece supply unit 9, a welding strip preparation unit 10, a manipulator unit 11, a first curing unit, a transfer unit 12, a connecting platform 13 and a splitting unit 16, wherein the battery piece supply unit 9 can supply battery pieces 1; while the cell sheet supply unit 9 supplies the cell sheet 1, the film making unit 8 can make the back face film sheet 2 and the front face film sheet 5, and the solder ribbon making unit 10 can make the solder ribbon group 4; the manipulator unit 11 can arrange N battery pieces 1 and N back diaphragms 2 at intervals to form N laying units 3, each laying unit 3 comprises one battery piece 1 and one back diaphragm 2, wherein N is an integer not less than 2; the manipulator unit 11 can also lay the welding strip group 4 and the front face membrane 5 on the laying units 3, so that in each laying unit 3, the welding strip group 4 extends from the battery piece 1 to the back face membrane 2, and the front face membrane 5 covers the battery piece 1 and the welding strip group 4; the first curing unit can fixedly connect the laying unit 3, the welding strip group 4 and the front diaphragm 5 into a whole to form a battery unit 6; the transfer unit 12 can arrange two adjacent battery units 6 according to the serial requirement in the process of conveying the battery units 6; the connecting platform 13 can bear the battery units 6 and connect the N battery units 6 to obtain battery string segments; the connecting platform 13 further connects the currently obtained cell string fragments with the previously obtained cell string fragments to form long strings, the distances between the currently obtained cell string fragments and the previously obtained cell string fragments are arranged by the transfer unit 13 according to the serial requirement, and the long strings are provided with cutting gaps at preset positions; the cutting unit 16 is arranged at one end of the connecting platform 13 far away from the film making unit 8, and the cutting unit 16 can cut the long string at the cutting gap to obtain the battery string 7.
According to the battery string production equipment, the film preparation unit 8, the battery piece supply unit 9 and the welding strip preparation unit 10 can prepare the battery pieces 1, the front diaphragm 5, the back diaphragm 2 and the welding strip group 4, the manipulator unit 11 can realize the laying of a plurality of groups of welding strip groups 4 and front diaphragms 5, meanwhile, the first curing unit works to obtain the battery units 6, the transfer unit 12 conveys the plurality of groups of battery units 6 to the connecting platform 13 for series connection to obtain battery string fragments, the battery string fragments are connected in series to form long strings, and the battery strings 7 are finally obtained after the cutting unit 16 cuts off the battery strings at the cutting gaps. The battery string production equipment has a simple process route, can simultaneously prepare at least two battery units 6, improves the yield in unit time, and meets the aim of efficiently producing the battery strings 7.
More specifically, the film making unit 8 includes a film placing mechanism 801, a film pressing mechanism 802, a traction mechanism 803, a film cutting mechanism 804, and a film application module 805; the film placing mechanism 801 can be provided with a film reel, 2N film applying modules 805 are arranged in parallel along the arrangement direction of the back film 2 and the battery piece 1, the film applying modules 805 can bear the back film 2 and the battery piece 1, the film pressing mechanism 802 is arranged between the film applying modules 805 and the film placing mechanism 801, after the film is led out from the film reel and before the film cutting mechanism 804 cuts the film laid on the film applying modules 805, the film pressing mechanism 802 presses the film between the film reel and the film applying modules 805, the film cutting mechanism 804 conveniently cuts the film between the film reel and the film applying modules 805, a traction end is reserved for the next traction mechanism 803 to pull the film, and after the traction mechanism 803 clamps the end, the film pressing mechanism 802 leaves the film; the traction mechanism 803 is slidably connected with the film coating module 805, the sliding direction of the traction mechanism 803 relative to the film coating module 805 is parallel to the arrangement direction of the film coating module 805, and the film placing mechanism 801 and the traction mechanism 803 are matched to lay the film which is led out from the film reel on the film coating module 805. The film that the membrane spool was derived lays flatly on applying membrane module 805 under the combined action of putting membrane mechanism 801 and drive mechanism 803, facilitates for the preparation of follow-up back diaphragm 2 and front diaphragm 5, avoids the membrane to curl simultaneously and gathers, provides powerful assurance for follow-up battery cluster 7 quality. Film cutting mechanism 804 can form back diaphragm 2 and front diaphragm 5 with the membrane cutting that the membrane spool was derived, in this embodiment, sets up a set of membrane spool, forms back diaphragm 2 and front diaphragm 5 simultaneously after the cutting, practices thrift equipment occupation space.
In other specific embodiments of the present invention, two sets of film reels with different adhesive surfaces may be simultaneously disposed to simultaneously prepare the back diaphragm 2 and the front diaphragm 5 (i.e., the front diaphragm 5 and the back diaphragm 2 are respectively prepared by two production lines), and the two sets of film reels do not need to be turned over when disposed, in which case, the number of diaphragms cut on each production line may be an odd number or an even number, specifically:
the film placing mechanism 801, the film pressing mechanism 802, the traction mechanism 803, the film cutting mechanism 804 and the film applying module 805, wherein the film applying module 805 in the front film preparation line is used for bearing the front film 5, the film applying module 805 in the back film preparation line is used for bearing the back film 2, and the structures of the film pressing mechanism 802, the traction mechanism 803 and the film cutting mechanism 804 can be the same as those described in the previous embodiment;
the film coating modules 805 are arranged in parallel, the extension direction of the module platform is parallel to the arrangement direction of the film coating modules 805, and the structure of the module platform can be the same as that of the film coating modules; the film releasing mechanism 801 is used for installing film reels, wherein the film releasing mechanism 801 in the front-surface film preparation line is used for installing the front-surface film reels, and the film releasing mechanism 801 in the back-surface film preparation line is used for installing the back-surface film reels.
The film pressing mechanism 802 is arranged between the film applying module 805 and the film placing mechanism 801, the traction mechanism 803 is connected with the film applying module 805 in a sliding mode, the sliding direction of the traction mechanism 803 relative to the film applying module 805 is parallel to the arrangement direction of the film applying module 805, the film placing mechanism 801 and the traction mechanism 803 are matched to lay the film led out from the film reel on the film applying module 805 through the film placing mechanism 801, and the film cutting mechanism 804 can cut the film led out from the film reel into the back film piece 2 and the front film piece 5.
The difference from the film forming unit 8 used in a single production line for simultaneously producing the front film 5 and the back film 2 is that the front film 5 and the back film 2 are divided into two film preparation lines, i.e. the front film preparation line and the back film preparation line, and at least one module platform is arranged in parallel with the two film preparation lines, and the module platform can buffer and place the front film 5 or the back film 2 in the laying process of the battery unit 6, wherein the film application modules 805 of the front film preparation line and the back film preparation line can also be divided into a main film application module and an auxiliary film application module (both the main film application module and the auxiliary film application module can be called as the film application module 805), i.e. each preparation line is provided with two groups of film application modules 805, wherein the auxiliary film application modules have the same function as the module platform, in the actual production process, the back film preparation line prepares the back film 2, the front film 5 (opposite to the sticky side of the back film 2), the membrane in this embodiment does not need to be inverted. Namely, two sets of manipulator units 11 on the two preparation lines respectively transport the prepared back diaphragm 2 and the front diaphragm 5 from the main laying module at intervals to the two sets of auxiliary laying modules beside, and at the moment, the two preparation lines are provided with two sets of back diaphragms 2 and two sets of front diaphragms 5.
Then, the battery pieces 1 and the welding strip groups 4 are laid on the main laying module and the auxiliary laying module on the back face membrane preparation line, two groups of front face membranes 5 on the front face membrane preparation line are conveyed to the battery pieces 1 on the back face membrane preparation line, and the battery units 6 are formed after heating. This embodiment can improve production efficiency, simplifies the structure and the work flow of manipulator unit 11, need not the upset, and direct absorption front diaphragm 5 from the top can.
In this embodiment, the first curing unit is disposed in the film coating module 805, and after the welding strip set 4 and the front diaphragm 5 are laid, the position of the film coating module 805 does not need to be moved, so that the laying unit 3 can be fixedly connected, the production efficiency is improved, and the occupied space of the equipment is reduced.
In addition, the distance between the adjacent film coating modules 805 can be adjusted to adapt to the production of the battery strings 7 with different specifications, in other embodiments of the present invention, the bottom of the film coating module 805 is provided with a sliding track, and the film coating module 805 is slidably arranged on the sliding track, so that the distance between the film coating modules 805 can be conveniently adjusted according to the production requirement to adapt to the sheet distance and/or the string distance of the battery strings 7.
It should be further noted that there is a gap between adjacent film application modules 805, the film cutting mechanism 804 includes a blade 804a and a connecting rod 804b, the connecting rod 804b is slidably connected to the film application modules 805, the sliding direction of the connecting rod 804b relative to the film application modules 805 is perpendicular to the arrangement direction of the film application modules 805, the connecting rod 804b is located at the bottom of the film application modules 805, the blade 804a extends into the gap between the adjacent film application modules 805, and the blade 804a can cut the film guided out of the film reel. After the film guided out by the film reel is laid, the connecting rod 804b drives the blade 804a to move along the gap between the adjacent film applying modules 805, and the film guided out by the film reel is cut, so that the preparation of the back side film 2 is completed. In practical applications, the film coating module 805 may be set to be movable, so that the film coating module 805 and the film cutting mechanism 804 move relatively to each other to complete the film cutting.
In order to improve the automation degree of the equipment, the traction mechanism 803 is connected with a driving motor 806, the driving motor 806 drives the traction mechanism 803 to reciprocate, so that the film guided out by the film reel is flatly laid, the driving motor 806 is in transmission connection with the traction mechanism 803, and other transmission modes such as a gear and a rack can be selected. It should be further noted that a slide rail is disposed on one side of the film application module 805, the traction mechanism 803 has a slide slot matching with the slide rail, and the traction mechanism 803 is slidably disposed on the slide rail, so as to realize indirect sliding connection with the film application module 805, and the direction of the slide rail is parallel to the arrangement direction of the film application modules 805, so as to further improve the accuracy of the reciprocating motion of the traction mechanism 803.
Further, the cell supply unit 9 includes a conveyer belt 901, the conveyer belt 901 can bear and convey the cell 1, the conveyer belt 901 is disposed on one side of the film preparation unit 8, the conveyer belt 901 is parallel to the arrangement direction of the film application modules 805, the conveyer belt 901 can convey the cell 1 to the back membrane 2, so as to facilitate the laying of the laying unit 3, and the conveying frequency of the conveyer belt 901 matches with the overall production rhythm of the device.
In addition, the welding strip preparation unit 10 comprises a base 1001, a welding strip shaping mechanism 1002 and a cutter mechanism 1003 which are arranged on the base 1001, wherein the welding strip shaping mechanism 1002 and the cutter mechanism 1003 are arranged along the length direction of the welding strip group 4, the welding strip group 4 is bent and then cut, and the shaping preparation efficiency of the welding strip group 4 is improved. The welding strip shaping mechanism 1002 can bend the welding strip group 4 to enable the welding strip group 4 to form a Z-shaped bend matched with the thickness of the battery piece 1, the cutter mechanism 1003 can be slidably arranged on the base 1001, the sliding direction of the cutter mechanism 1003 relative to the base 1001 is parallel to the length direction of the welding strip group 4, and the cutter mechanism 1003 can cut the welding strip group 4. The welding strip preparation unit 10 and the battery piece supply unit 9 are positioned on two sides of the film preparation unit 8, the equipment arrangement is reasonable and compact, and convenience is brought to the subsequent production of the battery unit 6.
In this embodiment, the cutter mechanism 1003 includes a cutting assembly 1003a and a fixing assembly 1003b, the fixing assembly 1003b can clamp the solder ribbon group 4, the operation of the cutting assembly 1003a is facilitated, and the fixing assemblies 1003b are arranged on two sides of the cutting assembly 1003a, so that the cutting stability is improved. The cutting assembly 1003a comprises a cutting blade 1003c, the cutting blade 1003c can slide back and forth relative to the fixing assembly 1003b, the sliding direction of the cutting blade 1003c relative to the fixing assembly 1003b is perpendicular to the length direction of the solder strip group 4, the cutting blade 1003c slides relative to the fixing assembly 1003b, the solder strip group 4 can be cut, and after the cutting is completed, the cutting blade 1003c is reset to prepare for subsequent cutting. It should be noted here that the cutter mechanism 1003 can slide back and forth along the length direction of the solder strip group 4 to adjust the cut length, when the battery units 6 are connected in series, the distance between the battery pieces 2 at the string interval is greater than the distance between the other battery pieces 2 in the same string, so that a certain length of the solder strip group 4 is left at the head and the tail of the cut battery string 7, which is convenient for the preparation of a photovoltaic module in the subsequent process.
In other embodiments of the present invention, the solder ribbon preparation unit 10 further includes a ribbon supply assembly 1004, the ribbon supply assembly 1004 is disposed near the solder ribbon shaping mechanism 1002, the ribbon supply assembly 1004 can provide the solder ribbon group 4 to the solder ribbon shaping mechanism 1002, and the ribbon supply assembly 1004 can be a reel for ribbon supply.
Further, the manipulator unit 11 comprises a beam 1101, a tape conveying mechanism 1102 and a sheet conveying mechanism 1103 which are movably arranged on the beam 1101, wherein the beam 1101 spans the film preparing unit 8, the battery sheet supplying unit 9 and the solder strip preparing unit 10; the tape conveying mechanism 1102 and the film conveying mechanism 1103 are respectively and slidably arranged on the beam 1101, and the sliding direction of the tape conveying mechanism 1102 and the film conveying mechanism 1103 relative to the beam 1101 is perpendicular to the arrangement direction of the film coating modules 805. The belt conveying mechanism 1102 and the sheet conveying mechanism 1103 reciprocate along the cross beam 1101 to complete the transfer of the battery sheet 1, the back diaphragm 2, the welding belt group 4 and the front diaphragm 5, so that the production efficiency and the equipment automation degree are improved. The sheet conveying mechanism 1103 in the manipulator unit 11 can move the N back-side diaphragms 2 at intervals, the sheet conveying mechanism 1103 slides along the beam 1101, the sheet conveying mechanism 1103 places the N battery sheets 1 in vacant positions left after the back-side diaphragms 2 are moved away to form N laying units 3, the sheet conveying mechanism 1102 lays the welding strip groups 4 on the laying units 3, the sheet conveying mechanism 1103 can also turn the N removed back-side diaphragms 2 by 180 degrees to serve as front-side diaphragms 5, and the front-side diaphragms 5 are laid on the battery sheets 1 and the welding strip groups 4.
The tape conveying mechanism 1102 comprises a plurality of groups of clamping hands 1102a, the clamping hands 1102a can clamp the welding tape group 4 prepared by the welding tape preparation unit 10 and convey the welding tape group 4 to the film coating module 805, the clamping hands 1102a adopt a clamping mode to fix the welding tape group 4 and effectively fix the welding tape group 4, and in actual operation, the distance between the clamping hands 1102a can be adjusted so as to adapt to production of battery strings 7 of different specifications, and the flexible adaptability of the equipment is improved.
The film conveying mechanism 1103 includes a fixing member 1103a, a film conveying hand 1103b and a film conveying hand 1103c, the fixing member 1103a is slidably disposed on the cross beam 1101, the film conveying hand 1103b and the film conveying hand 1103c are disposed on two sides of the fixing member 1103a, the film conveying hand 1103b can convey the battery sheet 1, the film conveying hand 1103c can transfer and convey the back film sheet 2, the film conveying hand 1103c is rotatably connected with the fixing member 1103a, and the back film sheet 2 is turned over by 180 ° after being removed from the film coating module 805 by the film conveying hand 1103c and used as the front film sheet 5. The rotation axis of the film transporting hand 1103c relative to the fixing piece 1103a is parallel to the plane of the film coating module 805, the number of the film transporting hand 1103b is N, the number of the film transporting hand 1103b is one to one, and after the film transporting hand 1103c removes the back film 2, the film transporting hand 1103b places the battery piece 1 on the film coating module 805 to form the laying unit 3; the arrangement directions of the film conveying hands 1103b and the film conveying hands 1103c are parallel to the arrangement direction of the film coating module 805, so that the back diaphragm 2 and the battery piece 1 can be conveniently transferred and conveyed, and the production efficiency of the device is improved.
In order to realize that the battery piece 1, the back diaphragm 2 and the front diaphragm 5 move in the vertical direction, the belt conveying mechanism 1102 and the film conveying mechanism 1103 are both connected with a lifting mechanism 1104, and the lifting mechanism 1104 can drive the belt conveying mechanism 1102 and the film conveying mechanism 1103 to reciprocate in the vertical direction. In other embodiments of the present invention, the lifting mechanism 1104 may be slidably disposed on the beam 1101 to smoothly complete the transferring and conveying of the material.
Actually when welding strip group 4 and front diaphragm 5 are laid on laying unit 3, smuggle hand 1102a secretly and transport welding strip group 4 to the top of laying unit 3, and fortune membrane hand 1103c transports front diaphragm 5 to the top of laying unit 3, and at this moment, front diaphragm 5 is located the top of welding strip group 4, then makes smuggle hand 1102a secretly and transport membrane hand 1103c and descend simultaneously, can accomplish the laying of welding strip group 4 and front diaphragm 5.
In this embodiment, the film transporting hand 1103c is connected to the fixing element 1103a by a driving shaft 1103d, one end of the driving shaft 1103d is rotatably connected to the fixing element 1103a, the other end of the driving shaft 1103d is connected to the film transporting hand 1103c, the driving shaft 1103d is used to turn the film transporting hand 1103c, so that the removed back film 2 can be used as the front film 5 after turning, and the driving shaft 1103c is connected to a power element; the quantity of drive shaft 1103d is unanimous with fortune membrane hand 1103 c's quantity, can also select for use a drive shaft 1103d to drive whole fortune membrane hand 1103c and realize the upset among the practical application, and this embodiment adopts drive shaft 1103d and fortune membrane hand 1103c one-to-one, reduces occupation of operating space, is favorable to integrating of equipment.
It should be further noted that when the film transporting hand 1103c transfers the back side film 2, the film transporting hand 1103c "lifts up" the back side film 2 on the film applying module 805 and then transfers the back side film, which provides convenience for laying the front side film 5 after the film transporting hand is subsequently turned over; in order to enable the film transporting hand 1103c to smoothly extend into the bottom of the back face membrane 2, the film applying module 805 is provided with a groove matched with the film transporting hand 1103c, the film transporting hand 1103c can extend into the groove, the groove extends to the side elevation of the film applying module 805, namely, a groove inlet is formed in the side elevation of the film applying module 805, the film transporting hand 1103c extends into the groove through the groove inlet to reach the bottom of the back face membrane 2, the back face membrane 2 is smoothly lifted upwards after extending to a certain degree, the back face membrane 2 is immediately used as the front face membrane 5 after being turned over, the film transporting hand 1103c is located at the top of the front face membrane 5, the laying of the front face membrane 5 is not affected, the equipment is smooth in action, and the yield in unit time is high.
As shown in fig. 8, the film conveying hand 1103c is of a fork-shaped structure, so that the equipment quality is reduced, and meanwhile, the grooves in the film applying module 805 are fork-shaped grooves matched with the film conveying hand 1103c, so that the supporting effect on the back diaphragm 2 is enhanced, the phenomena of pits, wrinkles and the like at the grooves of the back diaphragm 2 are avoided, and the product quality of the battery string 7 is ensured.
In the invention, a transfer table 14 is also arranged between a film coating module 805 and a connecting platform 13, the transfer table 14 is connected with the film coating module 805, the transfer table 14 can bear a battery unit 6, the transfer table 14 is arranged to improve the running speed of the equipment, after the battery unit 6 is transmitted to the transfer table 14, a transfer unit 12 is used for merging the battery unit 6 and carrying the battery unit to the connecting platform 13, so that the multi-action operation of a manipulator unit 11 above the film making unit 8 is not blocked, and the battery unit 6 is transferred from the film coating module 805 to the transfer table 14 and can adopt an automatic conveying mode comprising a conveying belt or a conveying chain; if the transfer table 14 is not provided, the transferring unit 12 moves to the position above the film making unit 8 to directly grab the battery unit 6 and convey the battery unit to the connecting platform 13, the manipulator unit 11 needs to avoid the grabbing action of the transferring unit 12 to wait, the production efficiency of the equipment is reduced, and the transfer table 14 can be omitted when the capacity meets the production requirement in the actual production process.
Correspondingly, the transferring unit 12 includes a transferring hand 1201, the transferring hand 1201 can transfer the battery unit 6 on the transfer platform 14 to the connecting platform 13, and complete the spacing arrangement of the battery unit 6 and the battery string segments, the transferring unit 12 is disposed on one side of the transfer platform 14, and the two are disposed in parallel, so as to provide convenience for the operation of the transferring hand 1201.
It should be emphasized here that the film application module 805, the film transporting hand 1103b, the film transporting hand 1103c and the transferring hand 1201 are all provided with vacuum chucks 15, the vacuum chucks 15 can adsorb the battery sheet 1, the film led out from the film reel and the battery unit 6, and in the actual production of the equipment, the vacuum chucks 15 are respectively connected with the negative pressure device by pipelines to control the sucking and releasing actions of the vacuum chucks 15, so as to smoothly complete the grabbing and laying of the materials.
Similar to the first curing unit built in the film coating module 805, the second curing unit is arranged inside the connecting platform 13, the connecting platform 13 can fixedly connect the battery units 6 connected in series into a whole to form battery string segments, and the two adjacent battery string segments are fixedly connected into a whole to form a long string. Under the condition that the front diaphragm 5 and the back diaphragm 2 have the gluey nature, the first curing unit and the second curing unit can adopt the mode of heating to make the material link firmly as an organic whole. As can be seen from the above method, the first curing unit and the second curing unit may be heating units, but may also be pressure units or radiation irradiation units capable of achieving curing.
When the battery units 6 are connected in series, in order to prevent the phenomena of unreliable connection or bubble generation caused by tilting and non-sticking of joints of the battery units 6, a crimping module can be arranged at the top of the connecting platform 13 to apply pressure to the upper surfaces of the battery units 6 and the battery strings 7, so that the joints of the battery units 6 are in full contact, the phenomena of unreliable connection or bubble generation are avoided as much as possible, and the product quality of the battery strings 7 is improved.
It should be further explained that the cell sheet supply unit 9 is connected to a dicing mechanism 902, the dicing mechanism 902 can divide the whole cell sheet into the cell sheets 1, and the dicing mechanism 902 is disposed at an end of the cell sheet supply unit 9 away from the connecting platform 13, and in an actual production application, the cell sheets 1 with a suitable specification can be selected or the whole cell sheets can be divided into specifications required for production according to actual needs.
The invention relates to battery string production equipment, which comprises a film preparation unit 8, a battery piece supply unit 9, a welding strip preparation unit 10, a manipulator unit 11, a first curing unit, a transfer unit 12, a connecting platform 13 and a splitting unit 16, wherein the battery piece supply unit 9 can supply battery pieces 1, when the battery pieces 1 are supplied by the battery piece supply unit 9, the film preparation unit 8 prepares a back diaphragm 2, the back diaphragm 2 is arranged on a film coating module 805, and the welding strip preparation unit 10 prepares a welding strip group 4; a film conveying hand 1103c in the manipulator unit 11 moves the N pieces of back surface diaphragms 2 at intervals, and a film conveying hand 1103b places the N pieces of battery pieces 1 in vacant positions left after the back surface diaphragms 2 are moved away, so that the N pieces of battery pieces 1 and the N pieces of back surface diaphragms 2 are arranged at intervals to form N laying units 3; a film conveying hand 1103c of the manipulator unit 11 turns the removed back membrane 2 by 180 degrees to form a front membrane 5, a tape conveying mechanism 1102 lays the tape welding group 4 and the front membrane 5 on the laying unit 3 by the film conveying hand 1103c, in each laying unit 3, the tape welding group 4 extends from the battery piece 1 to the back membrane 2, the front membrane 5 is laid on the battery piece 1, and the tape welding group 4 on the battery piece 1 is covered; the first curing unit arranged in the film coating module 805 can fixedly connect the laying unit 3, the welding strip group 4 and the front diaphragm 5 into a whole to form a battery unit 6; the transfer unit 12 covers the back surfaces of the battery units 6 on the upper surfaces of the welding strip groups 4 of the adjacent battery units 6, the distance between the adjacent edges of the battery pieces 1 is the required piece spacing and/or string spacing of the battery pieces 1 in the battery string 7, the second curing unit arranged in the connecting platform 13 can fixedly connect the N battery units 6 to obtain battery string segments, the battery string segments are connected in series to form a long string, and the battery string 7 is finally obtained after being cut at the cutting gap by the cutting unit 16.
The principle and the implementation mode of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In summary, this summary should not be construed to limit the present invention.
Claims (19)
1. The method for producing the battery string is characterized by comprising a battery string segment preparation process, a string assembling process and a battery string blanking process, wherein the battery string segment preparation process comprises the following steps of:
arranging N battery pieces (1) and N back surface membranes (2) at intervals to form N laying units (3), wherein each laying unit (3) comprises one battery piece (1) and one back surface membrane (2), and N is an integer not less than 2;
laying solder strip groups (4) and front face membranes (5) on the laying units (3), wherein in each laying unit (3), the solder strip groups (4) extend from the battery piece (1) to the back face membrane (2), and the front face membranes (5) cover the battery piece (1) and the solder strip groups (4);
the welding strip group (4), the front diaphragm (5) and the laying unit (3) are fixedly connected into a whole to form N battery units (6);
connecting N battery units (6) in series to obtain battery string segments, and continuously performing the battery string segment preparation process to continuously output the battery string segments to the string assembly process;
the string assembling process comprises the following steps:
connecting the current battery string segment with the battery string segment obtained before in series to form a long string, wherein a cutting gap is reserved at a preset position of the long string;
the battery string blanking process comprises the following steps:
cutting the long string at the cutting gap to form a battery string (7).
2. The battery string production method according to claim 1, characterized in that: the battery string segment preparation process further comprises: synchronously preparing a battery piece (1), a diaphragm and a welding strip group (4), wherein the diaphragm comprises a back diaphragm (2) and a front diaphragm (5), and then preparing the laying unit (3);
the welding strip group (4) is paved on all the paving units (3) at one time, and the front diaphragm (5) is paved on all the paving units (3) at one time along with the welding strip group (4).
3. The method for producing a battery string according to claim 1 or 2, wherein in the step of preparing the battery string segments, the laying of the N battery pieces (1) is completed by one-time feeding, and then the laying of the N back-face membrane pieces (2) is completed by one-time feeding.
4. The method of claim 2, wherein preparing the membrane sheet comprises:
the film is pulled out and cut into N pieces of front side film pieces (5) and N pieces of back side film pieces (2), and N vacant positions larger than the width of the battery piece (1) are formed on the same side of the N pieces of back side film pieces (2);
the N battery pieces (1) and the N back membranes (2) are arranged at intervals and specifically comprise the following steps:
and feeding N battery plates (1) at one time to fill the vacant positions.
5. The battery string production method according to claim 4, wherein the manner of forming N empty spaces larger than the width of the battery piece (1) on the same side of N pieces of the back film pieces (2) includes:
the method comprises the steps of cutting a membrane into 2N membranes after the membrane is pulled out, removing one membrane at intervals of one membrane, using the remaining N membranes as the back membrane (2), and forming N vacant positions after the membranes are removed.
6. The battery string production method according to claim 5, characterized in that: turning the removed membrane by 180 degrees to obtain N pieces of front membrane (5).
7. The battery string production method according to claim 1, wherein connecting the N battery cells (6) in series comprises:
in any two adjacent battery units (6), the battery sheet (1) in one battery unit (6) is covered on the welding strip group (4) of the back membrane (2) in the other battery unit (6) and then fixedly connected into a whole.
8. A battery string production apparatus, characterized in that it is capable of implementing a battery string production method according to any one of claims 1 to 7.
9. A battery string production apparatus, characterized by comprising:
a battery sheet supply unit (9), the battery sheet supply unit (9) being capable of supplying a battery sheet (1);
a film forming unit (8), wherein the film forming unit (8) can prepare a back film (2) and a front film (5) when the cell supply unit (9) supplies the cell (1);
a solder strip preparation unit (10), the solder strip preparation unit (10) being capable of preparing a solder strip group (4) while the battery sheet (1) is being supplied by the battery sheet supply unit (9);
the manipulator unit (11) can arrange N battery pieces (1) and N back membrane pieces (2) at intervals to form N laying units (3), each laying unit (3) comprises one battery piece (1) and one back membrane piece (2), and N is an integer not less than 2; the manipulator unit (11) can also lay the solder strip group (4) and the front face membrane (5) on the laying units (3) so that in each laying unit (3), the solder strip group (4) extends from the battery piece (1) to the back face membrane (2), and the front face membrane (5) covers the battery piece (1) and the solder strip group (4);
the first curing unit can enable the laying unit (3), the welding strip group (4) and the front diaphragm (5) to be fixedly connected into a whole to form a battery unit (6);
the transferring and carrying unit (12), the transferring and carrying unit (12) can enable the two adjacent battery units (6) to be arranged according to the serial connection requirement in the process of conveying the battery units (6);
the connecting platform (13) can connect the N battery units (6) to obtain a battery string segment; the connecting platform (13) further connects the currently obtained cell string segments with the previously obtained cell string segments to form long strings, the intervals between the currently obtained cell string segments and the previously obtained cell string segments are arranged by the transfer unit (13) according to the serial requirement, and the long strings are provided with cutting gaps at preset positions;
the battery string cutting device comprises a cutting unit (16), wherein the cutting unit (16) is arranged at one end, far away from the film making unit (8), of the connecting platform (13), and the cutting unit (16) can cut off the long string at the cutting gap to obtain a battery string (7).
10. The battery string production apparatus according to claim 9, wherein: the film making unit (8) comprises a film placing mechanism (801), a film pressing mechanism (802), a traction mechanism (803), a film cutting mechanism (804) and a film applying module (805);
the film laying mechanism (801) can be provided with a film reel, 2N film coating modules (805) are arranged in parallel along the arrangement direction of the back film sheet (2) and the battery sheet (1), the film coating modules (805) can bear the back film sheet (2) and the battery sheet (1), the film pressing mechanism (802) is arranged between the film coating modules (805) and the film laying mechanism (801), the film pressing mechanism (802) can press the films led out from the film reel, the traction mechanism (803) is slidably connected with the film coating modules (805), the sliding direction of the traction mechanism (803) relative to the film coating modules (805) is parallel to the arrangement direction of the film coating modules (805), the film laying mechanism (801) and the traction mechanism (803) are matched to lay the films led out from the film reel on the film coating modules (805) flatly, the film cutting mechanism (804) can cut the film led out by the film reel to form the back film sheet (2) and the front film sheet (5).
11. The battery string production apparatus according to claim 10, wherein: the first curing unit is built into the film application module (805).
12. The battery string production apparatus according to claim 10, wherein: the spacing between adjacent film modules (805) can be adjusted.
13. The battery string production apparatus according to claim 10, wherein: the manipulator unit (11) comprises a cross beam (1101), and a belt conveying mechanism (1102) and a sheet conveying mechanism (1103) which are movably arranged on the cross beam (1101), wherein the cross beam (1101) is arranged across the film preparing unit (8), the battery sheet supplying unit (9) and the solder strip preparing unit (10); the belt conveying mechanism (1102) and the film conveying mechanism (1103) are respectively arranged on the cross beam (1101) in a sliding mode, and the sliding direction of the belt conveying mechanism (1102) and the film conveying mechanism (1103) relative to the cross beam (1101) is perpendicular to the arrangement direction of the film coating modules (805).
14. The battery string production apparatus according to claim 13, wherein: the band conveying mechanism (1102) comprises a plurality of groups of clamping hands (1102a), and the clamping hands (1102a) can clamp the welding band group (4) prepared by the welding band preparation unit (10) and convey the welding band group (4) to the film coating module (805);
the film conveying mechanism (1103) comprises a fixing piece (1103a), a film conveying hand (1103b) and a film conveying hand (1103c), the fixing piece (1103a) is slidably arranged on the cross beam (1101), the film conveying hand (1103b) and the film conveying hand (1103c) are respectively arranged on two sides of the fixing piece (1103a), the film conveying hand (1103c) is rotatably connected with the fixing piece (1103a), the rotation axis of the film conveying hand (1103c) relative to the fixing piece (1103a) is parallel to the plane of the film coating module (805), and the number of the film conveying hand (1103b) and the number of the film conveying hand (1103c) are N and correspond to one another; the arrangement directions of the film conveying hand (1103b) and the film conveying hand (1103c) are both parallel to the arrangement direction of the film applying module (805);
the belt conveying mechanism (1102) and the sheet conveying mechanism (1103) are both connected with a lifting mechanism (1104), and the lifting mechanism (1104) can drive the belt conveying mechanism (1102) and the sheet conveying mechanism (1103) to reciprocate in the vertical direction.
15. The battery string production apparatus according to claim 14, wherein: the film application module (805) is provided with a groove matched with the film conveying hand (1103c), and the film conveying hand (1103c) can extend into the groove.
16. The battery string production apparatus according to claim 9, wherein: a transfer table (14) is further arranged between the film making unit (8) and the connecting platform (13), the transfer table (14) is connected with the film making unit (8), and the transfer table (14) can bear the battery unit (6); the transfer unit (12) includes a transfer hand (1201), and the transfer hand (1201) can transfer the battery unit (6) on the transfer table (14) to the connection platform (13).
17. The battery string production apparatus according to claim 9, wherein: the connection platform (13) is internally provided with a second curing unit so as to fixedly connect the battery units (6) which are connected in series into a whole to form the battery string segments, and fixedly connect two adjacent battery string segments into a whole to form the long string.
18. The battery string production apparatus according to any one of claims 9 to 17, wherein: the cell slice supply unit (9) is connected with a scribing mechanism (902), the scribing mechanism (902) can divide a whole cell slice into the cell slices (1), and the scribing mechanism (902) is arranged at one end, far away from the connecting platform (13), of the cell slice supply unit (9).
19. The battery string production apparatus according to claim 9, wherein: film making unit (8) are including positive diaphragm preparation line, back diaphragm preparation line and at least one module platform, the module platform is used for bearing front diaphragm (5) with back diaphragm (2), front diaphragm preparation line with the structure of back diaphragm preparation line is the same, and all includes:
the film laminating machine comprises a film placing mechanism (801), a film pressing mechanism (802), a traction mechanism (803), a film cutting mechanism (804) and a film applying module (805), wherein the film applying module (805) in the front face film preparation line is used for bearing the front face film (5), and the film applying module (805) in the back face preparation line is used for bearing the back face film (2);
the film releasing mechanism (801) is used for installing a film reel, wherein the film releasing mechanism (801) in the front-surface film preparation line is used for installing a front-surface film reel, and the film releasing mechanism (801) in the back-surface film preparation line is used for installing a back-surface film reel;
the film coating modules (805) are arranged in parallel, and the extension direction of the module platforms is parallel to the arrangement direction of the film coating modules (805).
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111192045.XA CN113937190B (en) | 2021-10-13 | 2021-10-13 | Battery string production method and equipment |
| KR1020227014482A KR20230054309A (en) | 2021-10-13 | 2022-03-17 | Battery string manufacturing method and device |
| PCT/CN2022/081459 WO2023060838A1 (en) | 2021-10-13 | 2022-03-17 | Battery string production method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111192045.XA CN113937190B (en) | 2021-10-13 | 2021-10-13 | Battery string production method and equipment |
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| CN113937190A true CN113937190A (en) | 2022-01-14 |
| CN113937190B CN113937190B (en) | 2022-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111192045.XA Active CN113937190B (en) | 2021-10-13 | 2021-10-13 | Battery string production method and equipment |
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| KR (1) | KR20230054309A (en) |
| CN (1) | CN113937190B (en) |
| WO (1) | WO2023060838A1 (en) |
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| CN114497286A (en) * | 2022-02-16 | 2022-05-13 | 苏州迈展自动化科技有限公司 | Assembling mechanism and assembling method of solar photovoltaic cell string |
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| CN114744080A (en) * | 2022-06-10 | 2022-07-12 | 苏州小牛自动化设备有限公司 | Battery string production method and battery string laying equipment |
| CN114823988A (en) * | 2022-07-01 | 2022-07-29 | 苏州小牛自动化设备有限公司 | Battery string production method and equipment |
| 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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| CN115295685A (en) * | 2022-10-09 | 2022-11-04 | 苏州小牛自动化设备有限公司 | Method for fixedly connecting battery strings, pressing tool assembly and curing device |
| CN115377251A (en) * | 2022-10-21 | 2022-11-22 | 苏州小牛自动化设备有限公司 | Film-coated battery string production equipment |
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| CN115274524A (en) * | 2022-09-28 | 2022-11-01 | 苏州小牛自动化设备有限公司 | Preparation module and assembly method of film-coated battery string |
| CN115274524B (en) * | 2022-09-28 | 2022-12-16 | 苏州小牛自动化设备有限公司 | Preparation module and assembly method of film-coated battery string |
| CN115295685B (en) * | 2022-10-09 | 2022-12-16 | 苏州小牛自动化设备有限公司 | Method for fixedly connecting battery strings, pressing tool assembly and curing device |
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| CN115377251B (en) * | 2022-10-21 | 2023-03-24 | 苏州小牛自动化设备有限公司 | Production equipment for film-coated battery string |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113937190B (en) | 2022-05-10 |
| WO2023060838A1 (en) | 2023-04-20 |
| KR20230054309A (en) | 2023-04-24 |
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