CN114744078B - Battery string repair device and repair method - Google Patents

Battery string repair device and repair method Download PDF

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Publication number
CN114744078B
CN114744078B CN202210405116.8A CN202210405116A CN114744078B CN 114744078 B CN114744078 B CN 114744078B CN 202210405116 A CN202210405116 A CN 202210405116A CN 114744078 B CN114744078 B CN 114744078B
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CN
China
Prior art keywords
welding
battery
battery string
disassembled
string
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CN202210405116.8A
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Chinese (zh)
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CN114744078A (en
Inventor
周希巍
王恒
王群
沈博
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Wuxi Autowell Technology Co Ltd
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Wuxi Autowell Technology Co Ltd
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Priority to CN202210405116.8A priority Critical patent/CN114744078B/en
Publication of CN114744078A publication Critical patent/CN114744078A/en
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Classifications

    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
    • H10F71/00—Manufacture or treatment of devices covered by this subclass
    • H10F71/137—Batch treatment of the devices
    • H10F71/1375—Apparatus for automatic interconnection of photovoltaic cells in a module
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K3/00—Tools, devices or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K3/00—Tools, devices or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
    • B23K3/06—Solder feeding devices; Solder melting pans
    • B23K3/0607—Solder feeding devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K3/00—Tools, devices or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
    • B23K3/08—Auxiliary devices therefor
    • B23K3/087—Soldering or brazing jigs, fixtures or clamping means
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
    • H10P72/00—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof
    • H10P72/30—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof for conveying, e.g. between different workstations
    • H10P72/33—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof for conveying, e.g. between different workstations into and out of processing chamber
    • H10P72/3302—Mechanical parts of transfer devices
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
    • H10P72/00—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof
    • H10P72/30—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof for conveying, e.g. between different workstations
    • H10P72/33—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof for conveying, e.g. between different workstations into and out of processing chamber
    • H10P72/3314—Continuous loading and unloading into and out of a processing chamber, e.g. transporting belts within processing chambers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/36—Electric or electronic devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automatic Assembly (AREA)

Abstract

本发明提供了一种电池串返修装置及返修方法，其中的电池串返修装置包括解焊平台、焊接平台、电池串移载机构、焊带牵引机构、加热焊接机构及电池片供料机构，其中：解焊平台配合加热焊接机构将待返修电池串中的缺陷电池片与其上的焊带解焊并分离，得到第一拆解电池串和第二拆解电池串；电池串移载机构将第一拆解电池串和第二拆解电池串移载至焊接平台上；电池片供料机构将替换电池片上料至焊接平台上；焊带牵引机构将第一拆解电池串的拆解端焊带和第二拆解电池串的拆解端焊带叠放至替换电池片上；加热焊接机构还用于将拆解端焊带焊接至替换电池片上。本发明实现了对待返修电池串的自动拆解，并完成替换电池片的自动焊接。

The present invention provides a battery string repair device and a repair method, wherein the battery string repair device includes a desoldering platform, a welding platform, a battery string transfer mechanism, a welding strip pulling mechanism, a heating welding mechanism and a battery cell feeding mechanism, wherein: the desoldering platform cooperates with the heating welding mechanism to desolder and separate the defective battery cells in the battery string to be repaired from the welding strip thereon, to obtain a first disassembled battery string and a second disassembled battery string; the battery string transfer mechanism transfers the first disassembled battery string and the second disassembled battery string to the welding platform; the battery cell feeding mechanism loads the replacement battery cell onto the welding platform; the welding strip pulling mechanism stacks the disassembled end welding strip of the first disassembled battery string and the disassembled end welding strip of the second disassembled battery string onto the replacement battery cell; the heating welding mechanism is also used to weld the disassembled end welding strip to the replacement battery cell. The present invention realizes the automatic disassembly of the battery string to be repaired and completes the automatic welding of the replacement battery cell.

Description

Battery string repairing device and repairing method
Technical Field
The invention relates to the field of battery production, in particular to a battery string repairing device and a repairing method.
Background
When defects such as cold joint and hidden crack occur in the battery string, the battery string needs to be repaired, and for the defective battery piece which can be repaired by repairing the cold joint, the cold joint point in the defective battery piece needs to be repaired; for the case of severely damaged battery pieces with insufficient solder or the case of defective battery pieces with hidden cracks, the battery pieces need to be replaced, namely the defective battery pieces are removed and replaced by good battery pieces.
The traditional sheet replacing and repairing mode is that the defective battery sheet and the welding strip on the defective battery sheet are subjected to welding off manually by using an electric soldering iron, and then the replacement battery sheet and the welding strip which is subjected to welding off are welded together again by using the electric soldering iron. The traditional sheet changing and repairing mode has low repairing efficiency, unstable repairing quality and influences the productivity.
Disclosure of Invention
In order to solve the problems of low efficiency and unstable repair quality of the traditional sheet changing repair mode, the first aspect of the invention provides a battery string repair device, which has the following detailed technical scheme:
the utility model provides a battery cluster reprocesses device, includes that the welding platform is separated to the welding platform, battery cluster moves and carries mechanism, welds area traction mechanism, heating welding mechanism and battery piece feeding mechanism, wherein:
The welding disassembly platform is used for bearing the battery strings to be repaired and is matched with the heating welding mechanism to weld and separate the defective battery pieces in the battery strings to be repaired from the welding strips welded on the defective battery pieces to obtain a first disassembled battery string and a second disassembled battery string;
the battery string transfer mechanism is used for transferring the first disassembled battery string and the second disassembled battery string to the welding platform;
the battery piece feeding mechanism is used for feeding the replaced battery pieces to the welding platform;
the welding strip traction mechanism is used for traction and stacking of a dismantling end welding strip of the first dismantling battery string and a dismantling end welding strip of the second dismantling battery string to corresponding positions of the replacement battery pieces;
The heating welding mechanism is also used for welding the stacked disassembling end welding strips to corresponding replacement battery pieces to obtain the repaired battery string.
The battery string repairing device realizes automatic disassembly of the defective battery pieces in the battery string to be repaired and automatically welds the replacement battery pieces to the positions of the unfilled defective battery pieces after the disassembly by matching the welding platform, the battery string transfer mechanism, the welding belt traction mechanism, the heating welding mechanism and the battery piece feeding mechanism. Compared with the traditional sheet changing and repairing mode, the invention greatly improves the repairing efficiency of the battery string and can ensure the repairing quality.
In some embodiments, the de-soldering platform comprises a first mount, a middle de-soldering station, a first side de-soldering station, and a second side de-soldering station, wherein: the middle welding disassembly table is fixedly arranged on the first mounting seat and is used for bearing defective battery pieces in the battery strings to be repaired; the first side welding table is connected to the first mounting seat in a sliding manner and is used for bearing the battery piece positioned on the first side of the defective battery piece, and the first side welding table is configured to be capable of translating towards or away from the middle welding table; the second side welding stage is slidably connected to the first mounting base, the second side welding stage is used for bearing the battery piece located on the second side of the defective battery piece, and the second side welding stage is configured to be capable of translating towards or away from the middle welding stage.
The first side and second side desoldering stages are configured to translate relative to the intermediate desoldering stage by providing the desoldering stage to include the intermediate desoldering stage. The welding strip welding device comprises a welding strip, a welding strip welding device and a welding strip welding device.
In some embodiments, a first adsorption hole for adsorbing the defective battery piece is formed in the bearing surface of the intermediate welding table, and a first heating component is arranged in the intermediate welding table; the end part of the first side desoldering table, which is close to the middle desoldering table, is provided with a first side desoldering adsorption plate, and the first side desoldering adsorption plate is used for bearing and adsorbing adjacent battery pieces positioned on the first side of the defective battery piece; the end part of the second side desoldering table, which is close to the middle desoldering table, is provided with a second side desoldering adsorption plate, and the second side desoldering adsorption plate is used for bearing and adsorbing the adjacent battery pieces positioned on the second side of the defective battery piece.
The middle desoldering table, the first side desoldering adsorption plate and the second side desoldering adsorption plate adsorb the defective battery piece respectively and are positioned on the first side and the second side of the defective battery piece, so that the defective battery piece can be smoothly disassembled from the battery string to be repaired, and meanwhile, the phenomenon that the adjacent battery pieces positioned on the first side and the second side of the defective battery piece are moved in the disassembling process to influence the subsequent welding quality is avoided. And through setting up first heating element in the middle welding platform that unloads, then can cooperate the heating welding mechanism to implement the heating to the defect battery piece to promote and disassemble efficiency.
In some embodiments, the intermediate desoldering table, the first side desoldering suction plate, and the second side desoldering suction plate are each provided with a solder strip limiting groove.
The welding strip limiting grooves are formed in the middle welding strip limiting groove, the first side welding strip absorbing plate and the second side welding strip absorbing plate, after the repairing battery strings are placed on the welding strip limiting grooves, welding strips which are located on the lower surfaces of the defect battery pieces and are adjacent to the lower surfaces of the battery pieces on two sides of the defect battery pieces are limited in the corresponding welding strip limiting grooves, on one hand, as the welding strips on the lower surfaces of the defect battery pieces are located in the welding strip limiting grooves, the defect battery pieces can be in direct contact with the table top of the middle welding strip absorbing plate, so that the middle welding strip absorbing plate can absorb the defect battery pieces more stably, and the defect battery pieces can be prevented from being taken away due to the pulling of the welding strips in the separation process; on the other hand, the welding strips adjacent to the lower surfaces of the battery pieces on two sides of the defective battery piece are also positioned in the welding strip limiting grooves, so that the welding strips can be prevented from being misplaced in the disassembling process.
In some embodiments, the welding platform comprises a second mount, an intermediate welding station, a first side welding station, and a second side welding station, wherein: the middle welding table is fixedly arranged on the second mounting seat and is used for bearing the replacement battery piece; the first side welding table is movably mounted on the second mounting seat and is positioned on a first side of the middle welding table, the first side welding table is used for bearing a first disassembled battery string, and the first side welding table is configured to be capable of translating towards or away from the middle welding table and is configured to be capable of lifting in a vertical direction; the second side welding table is movably mounted on the second mounting seat and is located on a second side of the middle welding table, the second side welding table is used for bearing a second disassembled battery string, and the second side welding table is configured to be capable of translating towards or away from the middle welding table and is configured to be capable of lifting in the vertical direction.
Through setting up the welded platform to including middle welding bench to and can be for middle welding bench translation and the first side welding bench, the second side welding bench of lift for the welded platform can cooperate welding strip traction mechanism with the first end welding strip of disassembling of battery cluster and the second end welding strip of disassembling of battery cluster pull and stack to the corresponding position department of replacement battery piece.
In some embodiments, a second adsorption hole for adsorbing the replacement battery piece is formed in the bearing surface of the middle welding table, and a second heating component is arranged in the middle welding table; the end part of the first side welding table, which is close to the middle welding table, is provided with a first side welding adsorption plate, and the first side welding adsorption plate is used for bearing and adsorbing the battery pieces at the dismantling end of the first dismantling battery string; the end part of the second side welding table, which is close to the middle welding table, is provided with a second side welding adsorption plate, and the second side welding adsorption plate is used for bearing and adsorbing the battery pieces at the dismantling end of the second dismantling battery string.
The middle welding table, the first side welding adsorption plate and the second side welding adsorption plate adsorb the replacement battery piece, the disassembly end battery piece of the first disassembly battery string and the disassembly end battery piece of the second disassembly battery string respectively, so that the disassembly end welding strip of the first disassembly battery string and the disassembly end welding strip of the second disassembly battery string can be accurately stacked at the corresponding positions of the replacement battery pieces. And through setting up the second heating element in the middle welding bench, then can cooperate the heating welding mechanism to implement the heating to the replacement battery piece to promote welding efficiency.
In some embodiments, the solder ribbon pulling mechanism comprises a first solder ribbon pulling mechanism and a second solder ribbon pulling mechanism, wherein: the upper surface and the lower surface of the battery piece in the battery string to be repaired are welded with welding strips, and the first welding strip traction mechanism is used for dragging and laying the welding strips at the disassembly end of the first disassembled battery string on the middle welding table; the battery piece feeding mechanism feeds and stacks the replaced battery pieces onto a disassembling end welding strip of the first disassembled battery string; the second welding strip traction mechanism is used for traction and laying of a welding strip at the dismantling end of the second dismantling battery string on the replacement battery piece; or the battery pieces in the battery string to be repaired are IBC battery pieces, the battery piece feeding mechanism feeds the replacement battery pieces to the middle welding table, and the first welding belt traction mechanism is used for dragging and laying the welding belt at the dismantling end of the first dismantling battery string on the replacement battery pieces; the second welding strip traction mechanism is used for traction and laying of a welding strip at the dismantling end of the second dismantling battery string on the replacement battery piece.
Through setting up the welding strip traction mechanism to including first welding strip traction mechanism and second welding strip traction mechanism to under battery piece feeding mechanism and welding platform cooperation action, two welding strip traction mechanisms can be with the first end welding strip of disassembling the battery cluster and the second end welding strip of disassembling the battery cluster pull respectively and stack to the corresponding position department of replacing the battery piece, improve battery cluster repair efficiency.
In some embodiments, the battery string repairing device further includes a vision device disposed above the intermediate welding table, the vision device being configured to determine a position of the replacement battery piece, and the welding strip traction mechanism being configured to respectively traction and stack the disassembled end welding strips of the first disassembled battery string and the disassembled end welding strips of the second disassembled battery string onto corresponding positions of the replacement battery piece according to the position of the replacement battery piece.
Through setting up vision device, realized the location to the replacement battery piece to make welding area traction mechanism can be accurate with the first end welding area of disassembling the battery cluster and the second end welding area of disassembling the battery cluster pull respectively and stack to the corresponding position of replacement battery piece, thereby guarantee welding precision.
In some embodiments, the heat welding mechanism comprises a first heat welding mechanism and a second heat welding mechanism, wherein the first heat welding mechanism is arranged at the welding disassembly platform and is used for heating the defective battery piece so as to weld the defective battery piece with a welding belt welded on the defective battery piece; the second heating welding mechanism is positioned at the welding platform and is used for heating the replacement battery piece so as to weld the disassembling end welding strip of the first disassembled battery string and the disassembling end welding strip of the second disassembled battery string to the corresponding positions of the replacement battery piece.
Through setting up the heating welding mechanism to including first heating welding mechanism and second heating welding mechanism, the welding operation and the welding operation of can synchronous implementation of welding platform and welding platform are removed to further promote battery cluster repair efficiency.
In some embodiments, the battery string repair device further comprises a flux coating mechanism for coating flux onto the disassembly end weld of the first disassembled battery string and the disassembly end weld of the second disassembled battery string prior to welding.
Through setting up scaling powder coating mechanism, realized with the automatic coating of scaling powder to the first end welding strip of disassembling the battery cluster and the second end welding strip of disassembling the battery cluster to welding efficiency, welding quality have been promoted.
In some embodiments, the battery piece feeding mechanism includes a first pick-up mechanism, a regulating mechanism, and a second pick-up mechanism, wherein: the first picking mechanism is used for picking up the replacement battery piece from the battery box and conveying the picked replacement battery piece to the regulating mechanism; the regularization mechanism is used for regularly replacing the battery pieces; the second picking mechanism is used for picking up the regulated replacement battery pieces from the regulating mechanism and carrying the regulated replacement battery pieces to the welding platform.
Through first pickup mechanism, regular mechanism and second pickup mechanism, battery piece feeding mechanism can pick up the replacement battery piece from the battery box in automatically to after accomplishing the regulation to the replacement battery piece, with the automatic material loading of replacement battery piece to welding platform.
In some embodiments, the battery string repair device further comprises a tin supplementing mechanism; the tin supplementing mechanism is arranged at the side of the welding platform and is used for supplementing tin to the welding strip at the dismantling end of the first dismantling battery string and the welding strip at the dismantling end of the second dismantling battery string; and/or the tin supplementing mechanism is arranged at the side of the battery piece feeding mechanism and is used for supplementing tin to the bonding pad points of the replaced battery piece.
Through setting up the tin supplementing mechanism, realized the automatic tin supplementing of the end welding area of disassembling of first disassembling battery cluster and the end welding area of disassembling of second disassembling battery cluster to/or to the automatic tin supplementing of the welding plate point of replacing the battery piece, guarantee that the welding area after the welding of separating can be in the same place with the smooth welding of replacing the battery piece, and then guaranteed repair welded quality.
In some embodiments, the battery string repair device further comprises a welding tool picking and placing mechanism, wherein the welding tool picking and placing mechanism is used for pressing and placing the welding tool onto the disassembling end welding belt after the disassembling end welding belt which is required to be laid on the upper surface of the replacement battery piece is laid on the replacement battery piece, and removing the welding tool after welding.
Through setting up welding frock and getting and putting the mechanism, realized the automatic handling of welding frock, utilize welding frock to push down the welding area and carry out follow-up welding operation again, help welding area and battery piece.
The invention also provides a battery string repairing method, which comprises the following steps:
Feeding the battery string to be repaired to a welding platform;
controlling a welding platform and a heating welding mechanism to weld and separate a defective battery piece in the battery string to be repaired from a welding strip welded on the defective battery piece to obtain a first disassembled battery string and a second disassembled battery string;
Controlling a battery string transfer mechanism to feed the first disassembled battery string and the second disassembled battery string to a welding platform;
The battery piece feeding mechanism is controlled to feed the replacement battery piece to the welding platform; controlling a welding strip traction mechanism to respectively traction and stack a dismantling end welding strip of the first dismantling battery string and a dismantling end welding strip of the second dismantling battery string to corresponding positions of the replacement battery pieces;
and controlling a heating welding mechanism to weld the stacked disassembling end welding strips to the corresponding replaced battery pieces.
The method for repairing the battery string realizes the automatic disassembly of the defective battery piece in the battery string to be repaired, and automatically welds the replacement battery piece to the position where the defective battery piece is left after being disassembled.
In some embodiments, controlling the de-welding platform and the heated welding mechanism to de-weld and separate a defective battery cell in the battery string to be repaired from a weld strap welded to the defective battery cell comprises:
Controlling a heating welding mechanism to heat the defective battery piece so that a welding strip welded on the defective battery piece and the defective battery piece are unwelded;
Controlling a first side welding table to drive a battery piece positioned on the first side of the defective battery piece to move horizontally away from the middle welding table, so that a welding strip welded on the adjacent battery piece on the first side of the defective battery piece is separated from the defective battery piece, and a first disassembled battery string is obtained; and controlling the second side welding disassembly table to drive the battery piece positioned on the second side of the defective battery piece to move horizontally away from the middle welding disassembly table, so that the welding strip welded on the adjacent battery piece on the second side of the defective battery piece is separated from the defective battery piece, and a second disassembled battery string is obtained.
The automatic disassembly of the defective battery piece in the battery string to be repaired is realized by controlling the cooperative action of the welding disassembly platform and the heating welding mechanism, so that a first disassembled battery string and a second disassembled battery string are obtained.
In some embodiments, the welding strips are welded on the upper surface and the lower surface of the battery piece in the battery string to be repaired, the battery piece feeding mechanism is controlled to feed the replacement battery piece onto the welding platform, the welding strip traction mechanism is controlled to respectively traction and stack the disassembling end welding strips of the first disassembled battery string and the disassembling end welding strips of the second disassembled battery string to corresponding positions of the replacement battery piece, and the method comprises the following steps: controlling a first welding strip traction mechanism to traction a welding strip at a dismantling end of the first dismantling battery string, translating the welding strip together with the first side welding table towards the middle welding table, and traction and laying the welding strip at the dismantling end of the first dismantling battery string on the middle welding table; the battery piece feeding mechanism is controlled to feed and stack the replacement battery pieces on a disassembling end welding strip of the first disassembling battery string; and controlling a second welding strip traction mechanism to traction a welding strip at the dismantling end of the second dismantling battery string, translating the welding strip and the second side welding table towards the middle welding table, and traction and laying the welding strip at the dismantling end of the second dismantling battery string on the replacement battery piece.
The first welding strip traction mechanism, the second welding strip traction mechanism and the battery piece feeding mechanism are controlled to cooperate to realize traction and stacking of the disassembling end welding strip of the first disassembled battery string and the disassembling end welding strip of the second disassembled battery string to corresponding positions of the upper surface and the lower surface of the replaced battery piece.
In some embodiments, the battery pieces in the battery string to be repaired are IBC battery pieces, the battery piece feeding mechanism is controlled to feed the replacement battery pieces onto the welding platform, the welding strap traction mechanism is controlled to respectively traction and stack the disassembling end welding straps of the first disassembled battery string and the disassembling end welding straps of the second disassembled battery string to corresponding positions of the replacement battery pieces, and the method comprises the following steps: the battery piece feeding mechanism is controlled to feed the replacement battery piece to the middle welding table; controlling a first welding strip traction mechanism to traction a welding strip at a dismantling end of the first dismantling battery string, translating the welding strip together with the first side welding table towards the middle welding table, and traction and laying the welding strip at the dismantling end of the first dismantling battery string on a replacement battery piece; and controlling a second welding strip traction mechanism to traction a welding strip at the dismantling end of the second dismantling battery string, translating the welding strip and the second side welding table towards the middle welding table, and traction and laying the welding strip at the dismantling end of the second dismantling battery string on the replacement battery piece.
For the replacement battery piece that only the back needs to be welded with the welding strip, namely the IBC battery piece, through controlling the cooperation action of the first welding strip traction mechanism, the second welding strip traction mechanism and the battery piece feeding mechanism, the corresponding positions of the upper surface (namely the back surface of the IBC battery piece) of the replacement battery piece, namely the upper surface of the replacement battery piece, are stacked by traction of the disassembling end welding strip of the first disassembled battery string and the disassembling end welding strip of the second disassembled battery string.
In some embodiments, after obtaining the first disassembled battery string and the second disassembled battery string, the battery string rework method further comprises: controlling a tin supplementing mechanism positioned at the side of the welding platform to supplement tin to the welding strip at the dismantling end of the first dismantling battery string and the welding strip at the dismantling end of the second dismantling battery string; and/or, before feeding the replacement battery piece onto the welding platform, the battery string repairing method further comprises: and controlling a tin supplementing mechanism positioned at the side of the battery piece feeding mechanism to supplement tin to the bonding pad points of the replacement battery piece.
And the tin supplementing mechanism is controlled to supplement tin to the disassembled end welding strip and/or the replaced battery piece, so that welding of the disassembled end welding strip and the replaced battery piece is facilitated, and repair welding quality is ensured.
Drawings
Fig. 1 is a schematic structural diagram of a battery string repairing device according to an embodiment of the present invention under a first view angle;
fig. 2 is a schematic structural diagram of a battery string repairing device according to an embodiment of the present invention under a second view angle;
fig. 3 is a schematic structural diagram of a battery string repairing device according to an embodiment of the present invention under a third view angle;
FIG. 4 is a flowchart of a battery string repair method according to a first embodiment of the present invention;
FIG. 5 is a flowchart of a battery string repair method according to a second embodiment of the present invention;
FIG. 6 is a flowchart of a battery string repair method according to a third embodiment of the present invention;
FIG. 7 is a flowchart of a battery string repair method according to a fourth embodiment of the present invention;
Wherein, the reference numerals are as follows:
the welding platform 10: an intermediate desoldering stage 11, a first side desoldering stage 12, a second side desoldering stage 13, a first side desoldering suction plate 121, a second side desoldering suction plate 131;
welding platform 20: a middle welding stage 21, a first side welding stage 22, a second side welding stage 23, a first side welding suction plate 221, and a second side welding suction plate 231;
solder strip traction mechanism 30: a first solder ribbon traction mechanism 31 and a second solder ribbon traction mechanism 32;
heating and welding mechanism 40: a first heat welding mechanism 41 and a second heat welding mechanism 42;
Cell feeding mechanism 50: a first gripping mechanism 51, a normalization mechanism 52, a second gripping mechanism 53;
A flux application mechanism 60;
Tin supplementing mechanism 70.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
In the traditional sheet replacing and repairing mode, the defective battery sheet and the welding strip on the defective battery sheet are subjected to welding off manually by using an electric soldering iron, and then the replacement battery sheet and the welding strip which is subjected to welding off are subjected to welding off again by using the electric soldering iron. The traditional sheet changing and repairing mode has low repairing efficiency, unstable repairing quality and influences the productivity.
In view of the above, the invention provides a battery string repairing device and a repairing method, which can realize automatic disassembly of defective battery pieces in a battery string to be repaired, and automatically weld replacement battery pieces to positions where the defective battery pieces are left after disassembly, thereby greatly improving the repairing efficiency of the battery string and simultaneously ensuring the repairing quality.
As shown in fig. 1 to 3, the battery string repairing apparatus in the embodiment of the invention includes a welding platform 10, a welding platform 20, a battery string transferring mechanism, a welding belt traction mechanism 30, a heating welding mechanism 40 and a battery piece feeding mechanism 50, wherein:
the welding platform 10 is used for carrying a battery string to be repaired, and is matched with the heating welding mechanism 40 to weld and separate a defective battery piece in the battery string to be repaired from a welding strip welded on the defective battery piece, so as to obtain a first disassembled battery string and a second disassembled battery string.
The battery string transfer mechanism is used for transferring the first disassembled battery string and the second disassembled battery string to the welding platform 20.
The battery piece feeding mechanism 50 is used for feeding the replacement battery pieces onto the welding platform 20.
The welding strip traction mechanism 30 is used for traction and stacking of the disassembling end welding strip of the first disassembled battery string and the disassembling end welding strip of the second disassembled battery string to the corresponding position of the replaced battery piece.
The heat welding mechanism 40 is also used to weld the stacked disassembled end weld bands to the corresponding replacement battery pieces to obtain a repaired battery string.
By adopting the battery string repairing device in the embodiment of the invention, the repairing process of the battery string to be repaired is implemented as follows:
And feeding the battery strings to be repaired to the welding disassembly platform 10.
The welding platform 10 and the heating welding mechanism 40 are controlled to weld and separate the defective battery piece in the battery string to be repaired from the welding strip welded on the defective battery piece, so as to obtain a first disassembled battery string and a second disassembled battery string.
The battery string transfer mechanism is controlled to feed the first disassembled battery string and the second disassembled battery string onto the welding platform 20.
The battery piece feeding mechanism 50 is controlled to feed the replacement battery pieces onto the soldering land 20.
The control welding strip traction mechanism 30 respectively traction and stacks the disassembling end welding strip of the first disassembled battery string and the disassembling end welding strip of the second disassembled battery string to the corresponding positions of the replacement battery pieces.
And controlling the heating welding mechanism 40 to weld the stacked disassembling end welding strips to the corresponding replaced battery pieces to obtain the repaired battery string.
Therefore, the battery string repairing device realizes automatic disassembly of the defective battery piece in the battery string to be repaired and automatic welding of the replacement battery piece to an empty position after the defective battery piece is disassembled through the matching of the welding platform 10, the welding platform 20, the battery string transferring mechanism, the welding belt traction mechanism 30, the heating welding mechanism 40 and the battery piece feeding mechanism 50. Compared with the traditional sheet changing and repairing mode, the invention greatly improves the repairing efficiency and can also ensure the stability of repairing quality.
With continued reference to fig. 1-3, the alternative de-soldering platform 10 comprises a first mount, a middle de-soldering station 11, a first side de-soldering station 12 and a second side de-soldering station 13, wherein: the middle de-welding table 11 is fixedly arranged on the first mounting seat, and the middle de-welding table 11 is used for bearing defective battery pieces in the battery strings to be repaired. The first side de-soldering station 12 is slidably connected to the first mounting base, the first side de-soldering station 12 is configured to carry a battery piece located on a first side of the defective battery piece, and the first side de-soldering station 12 is configured to be translatable toward or away from the intermediate de-soldering station 11. A second side de-soldering station 13 is slidably connected to the first mounting base, the second side de-soldering station 13 being adapted to carry a battery piece located on a second side of the defective battery piece, the second side de-soldering station 13 being configured to be translatable towards or away from the intermediate de-soldering station 11.
The specific process of welding and separating the defective battery piece in the battery string to be repaired from the welding strip welded on the defective battery piece by matching the welding platform 10 with the heating and welding mechanism 40 is as follows:
in the initial state, the middle welding platform 11, the first side welding platform 12 and the second side welding platform 13 are close together and are in butt joint, namely, the middle welding platform 11, the first side welding platform 12 and the second side welding platform 13 are in butt joint to form a continuous horizontal bearing platform surface.
And feeding the battery strings to be repaired onto the bearing table surface, and enabling the defective battery pieces to be positioned on the middle welding-releasing table 11, wherein the battery pieces positioned on the first side of the defective battery pieces are positioned on the first side welding-releasing table 12, and the battery pieces positioned on the second side of the defective battery pieces are positioned on the second side welding-releasing table 13.
And (3) performing desoldering and separation on the defective battery piece:
the heat welding mechanism 40 is controlled to heat the defective battery cell such that the solder ribbon welded on the defective battery cell is unwelded from the defective battery cell.
The first side welding disassembly table 12 is controlled to drive the battery piece positioned on the first side of the defective battery piece to move horizontally away from the middle welding disassembly table 11, so that the welding strip welded on the adjacent battery piece on the first side of the defective battery piece is separated from the defective battery piece, and a first disassembled battery string is obtained.
And controlling the second side welding disassembly table 13 to drive the battery piece positioned on the second side of the defective battery piece to move horizontally away from the middle welding disassembly table 11, so that the welding strip welded on the adjacent battery piece on the second side of the defective battery piece is separated from the defective battery piece, and a second disassembled battery string is obtained.
It should be noted that, the first side welding stage 12 and the second side welding stage 13 may be synchronously controlled to translate away from the middle welding stage 11, so as to synchronously obtain two disassembled battery strings. Or one of the battery strings is controlled to translate away from the middle welding table 11, and then the other battery string is controlled to translate away from the middle welding table 11, so that two disassembled battery strings are obtained successively.
Optionally, the bearing surface of the intermediate desoldering table 11 is provided with adsorption holes, and the bearing surface adsorbs defective battery pieces through adsorption. The end of the first side desoldering table 12 near the middle desoldering table 11 is provided with a first side desoldering adsorption plate 121, and the first side desoldering adsorption plate 121 is used for bearing and adsorbing the adjacent battery piece positioned on the first side of the defective battery piece. The end of the second side desoldering table 13 near the middle desoldering table 11 is provided with a second side desoldering adsorption plate 131, and the second side desoldering adsorption plate 131 is used for bearing and adsorbing the adjacent battery pieces positioned on the second side of the defective battery piece. The first side desoldering suction plate 121 and the second side desoldering suction plate 131 may also employ suction holes as suction structures.
After the battery string to be repaired is placed on the welding platform 10 and the position of the battery string to be repaired is adjusted, the middle welding platform 11, the first side welding adsorption plate 121 and the second side welding adsorption plate 131 adsorb the defective battery piece and the adjacent battery pieces positioned on the first side and the second side of the defective battery piece respectively, so that when the first side welding platform 12 and the second side welding platform 13 move away from the middle welding platform 11, the defective battery piece can be stably kept on the middle welding platform 11, smooth disassembly of the defective battery piece is realized, and meanwhile, the adjacent battery pieces positioned on the first side and the second side of the defective battery piece can not be shifted to influence the subsequent welding precision in the disassembly process.
Optionally, a first heating assembly is further disposed in the intermediate desoldering stage 11. In the disassembly process, the heating assembly can be matched with the heating welding mechanism 40 to heat the defective battery piece borne on the middle disassembly table 11, so that the disassembly efficiency of the defective battery piece is improved.
Optionally, the intermediate desoldering table 11, the first side desoldering suction plate 121 and the second side desoldering suction plate 131 are provided with solder strip limiting grooves. After the reworked battery strings are placed on the welding disassembly platform 10 and the positions of the battery strings to be reworked are adjusted, the welding strips positioned on the lower surfaces of the defective battery pieces and adjacent battery pieces on two sides of the defective battery pieces are limited in the corresponding welding strip limiting grooves, and on one hand, the welding strips on the lower surface of the defective battery pieces are positioned in the welding strip limiting grooves, so that the defective battery pieces can be prevented from being taken away due to the pulling of the welding strips in the separation process; on the other hand, the welding strips adjacent to the lower surfaces of the battery pieces on two sides of the defective battery piece are also positioned in the welding strip limiting grooves, so that the welding strips can be prevented from being misplaced in the disassembling process.
With continued reference to fig. 1-3, optionally, the welding platform 20 includes a second mount, an intermediate welding station 21, a first side welding station 22, and a second side welding station 23, wherein: the middle welding table 21 is fixedly installed on the second installation seat, and the middle welding table 21 is used for bearing the replacement battery piece. The first side welding station 22 is movably mounted on the second mounting seat and is located at a first side of the intermediate welding station 21, the first side welding station 22 is used for carrying a first disassembled battery string, and the first side welding station 22 is configured to be translatable towards or away from the intermediate welding station and configured to be liftable in a vertical direction. The second side welding table 23 is movably mounted on the second mounting seat and is located at a second side of the intermediate welding table 21, the second side welding table 23 is used for carrying a second disassembled battery string, and the second side welding table 23 is configured to be translatable toward or away from the intermediate welding table 21 and configured to be vertically liftable.
Optionally, the welding strip traction mechanism 30 includes a first welding strip traction mechanism 31 and a second welding strip traction mechanism 32, where the first welding strip traction mechanism 31 is used to stack the welding strip at the disassembly end of the first disassembled battery string to the corresponding position of the replaced battery piece, and the second welding strip traction mechanism 32 is used to traction and stack the welding strip at the disassembly end of the second disassembled battery string to the corresponding position of the replaced battery piece.
As known to those skilled in the art, the battery cells are mainly classified according to the welding surfaces of the welding strips, and one type is a double-sided welding type battery cell in which the welding strips are welded to both the front and back surfaces, and the other type is a battery cell in which only the welding strips are welded to the back surface, i.e., a back-contact type (IBC) battery cell. Wherein:
Aiming at a to-be-repaired battery string formed by welding double-sided welding type battery pieces, the welding strip traction mechanism 30, the battery piece feeding mechanism 50 and the welding platform 20 finish the stacking of a disassembling end welding strip of a first disassembling battery string, a disassembling end welding strip of a second disassembling battery string and a replacing battery piece according to the following processes:
In the initial state, the first side welding stage 22 and the second side welding stage 23 are both away from the intermediate welding stage 21. The first disassembled battery string is borne on the first side welding table 22, the disassembled end welding strip of the first disassembled battery string extends out of the first side welding table 22, the second disassembled battery string is borne on the second side welding table 23, and the disassembled end welding strip of the second disassembled battery string extends out of the second side welding table 23.
Before the stacking operation, the first side welding table 22 and the second side welding table 23 are controlled to be lifted to the high position, and then the first welding belt traction mechanism 31 and the second welding belt traction mechanism 32 are controlled to traction the disassembling end welding belt of the first disassembled battery string and the disassembling end welding belt of the second disassembled battery string.
Of course, after controlling the first and second strap pulling mechanisms 31 and 32 to pull the disassembly end strap of the first disassembled battery string and the disassembly end strap of the second disassembled battery string, the first and second side welding stages 22 and 23 may be controlled to be raised to the high position.
By controlling the first side welding table 22 and the second side welding table 23 to rise to the high position and then performing stacking operation, the traction movement of the disassembling end welding belt on the high position is realized, and interference with the middle welding table or the replacement battery piece in the traction process can be avoided.
And (3) performing stacking operation:
The first welding strip traction mechanism 31 is controlled to translate towards the middle welding station 21 together with the first side welding station 22, and in the traction process, the welding strip of the dismantling end of the first dismantling battery string is kept to be horizontally drawn until the welding strip of the dismantling end of the first dismantling battery string reaches the upper side of the middle welding station 21. The first side welding table 22 and the first welding strip traction mechanism 31 are controlled to descend so that the welding strip at the disassembly end of the first disassembled battery string is laid on the middle welding table 21.
Next, the battery piece feeding mechanism 50 is controlled to feed and stack the replacement battery pieces onto the disassembling end welding strip of the first disassembling battery string.
Finally, the second welding strip traction mechanism 32 is controlled to draw the disassembling end welding strip of the second disassembled battery string, and translate towards the middle welding table 21 together with the second side welding table 23, and in the drawing process, the disassembling end welding strip of the second disassembled battery string is kept to be drawn in a horizontal state until the disassembling end welding strip of the second disassembled battery string reaches the upper side of the replaced battery piece, and the second side welding table 23 and the second welding strip traction mechanism 32 are controlled to descend, so that the disassembling end welding strip of the second disassembled battery string is laid on the replaced battery piece.
In the stacking process, if the surface of the replacement battery piece is provided with the main grid line, the disassembling end welding strip of the first disassembled battery string and the disassembling end welding strip of the second disassembled battery string are required to be respectively stacked on the main grid line on the corresponding surface. If the surface of the replacement battery piece is not provided with the main grid line, the disassembling end welding strips of the first disassembling battery string and the disassembling end welding strips of the second disassembling battery string are respectively overlapped at preset welding positions on the corresponding surface.
For a to-be-repaired battery string formed by welding back-connected (IBC) battery pieces, when the to-be-repaired battery string is fed onto the welding platform 20, the to-be-repaired battery string is upward in back face; the welding strip traction mechanism 30, the battery piece feeding mechanism 50 and the welding platform 20 complete the stacking of the first disassembling end welding strip of the disassembled battery string, the second disassembling end welding strip of the disassembled battery string and the replacement battery piece according to the following processes:
Similarly, in the initial state, the first side welding stage 22 and the second side welding stage 23 are both away from the intermediate welding stage 21. The first disassembled battery string is borne on the first side welding table 22, the disassembled end welding strip of the first disassembled battery string extends out of the first side welding table 22, the second disassembled battery string is borne on the second side welding table 23, and the disassembled end welding strip of the second disassembled battery string extends out of the second side welding table 23.
Before the stacking operation, the first side welding table 22 and the second side welding table 23 are controlled to be lifted to the high position, and then the first welding belt traction mechanism 31 and the second welding belt traction mechanism 32 are controlled to traction the disassembling end welding belt of the first disassembled battery string and the disassembling end welding belt of the second disassembled battery string.
Of course, after controlling the first and second strap pulling mechanisms 31 and 32 to pull the disassembly end strap of the first disassembled battery string and the disassembly end strap of the second disassembled battery string, the first and second side welding stages 22 and 23 may be controlled to be raised to the high position.
And (3) performing stacking operation:
the battery piece feeding mechanism 50 is controlled to feed the replacement battery piece onto the intermediate welding table 21, and ensure that the back of the replacement battery piece faces upward.
Next, the first welding strip pulling mechanism 31 is controlled to translate toward the middle welding station 21 together with the first side welding station 22, and during the pulling process, the welding strip at the disassembly end of the first disassembled battery string is pulled in a horizontal state until the welding strip at the disassembly end of the first disassembled battery string reaches above the replaced battery piece. The first side welding table 22 and the first welding strip traction mechanism 31 are controlled to descend so that the welding strip at the disassembly end of the first disassembled battery string is laid on the replaced battery piece.
Finally, the second welding strip traction mechanism 32 is controlled to translate towards the middle welding station 21 together with the second side welding station 22, and likewise, in the traction process, the welding strip of the dismantling end of the second dismantling battery string is kept to be horizontally pulled until the welding strip of the dismantling end of the second dismantling battery string reaches the upper side of the replacement battery piece, and the second side welding station 22 and the second welding strip traction mechanism 32 are controlled to descend, so that the welding strip of the dismantling end of the second dismantling battery string is laid on the replacement battery piece.
In the stacking process, if the back of the replacement battery piece is provided with the main grid line, the disassembling end welding strip of the first disassembled battery string and the disassembling end welding strip of the second disassembled battery string are required to be respectively stacked on the positive electrode main grid line and the negative electrode main grid line. If the back of the replacement battery piece is not provided with the main grid line, the disassembling end welding strips of the first disassembling battery string and the disassembling end welding strips of the second disassembling battery string are required to be respectively overlapped at preset welding positions.
Optionally, a second adsorption hole is provided on the bearing surface of the middle welding table 21, and the bearing surface of the middle welding table 21 replaces the battery piece through the second adsorption hole. The end of the first side welding table 22, which is close to the middle welding table 21, is provided with a first side welding adsorption plate 221, and the first side welding adsorption plate 221 is used for bearing and adsorbing the battery pieces at the dismantling end of the first dismantling battery string. The end of the second side welding table 23, which is close to the middle welding table 21, is provided with a second side welding adsorption plate 231, and the second side welding adsorption plate 231 is used for bearing and adsorbing the battery pieces at the dismantling end of the second dismantling battery string. The first side welding adsorption plate 221 and the second side welding adsorption plate 231 may also employ adsorption holes as adsorption structures.
In the stacking and welding process, the middle welding table 21, the first side welding adsorption plate 221 and the second side welding adsorption plate 231 can respectively adsorb the replacement battery piece, the disassembly end battery piece of the first disassembly battery piece and the disassembly end battery piece of the second disassembly battery piece, so that the welding strip traction mechanism 30 and the battery piece feeding mechanism 50 can smoothly stack the disassembly end welding strip of the first disassembly battery string, the disassembly end welding strip of the second disassembly battery string and the replacement battery piece.
Optionally, a second heating assembly is provided within the intermediate welding station 21. In the welding process, the second heating assembly can be matched with the heating welding mechanism 40 to heat the replacement battery piece loaded on the middle welding table 21, so that the welding efficiency of the replacement battery piece is improved.
Optionally, the battery string repairing device in the embodiment of the present invention further includes a vision device, where the vision device is disposed above the intermediate welding table 21, and the vision device is used to determine a position of the replacement battery piece. The welding strip traction mechanism 30 respectively traction and stacks the welding strips at the disassembly end of the first disassembled battery string and the welding strips at the disassembly end of the second disassembled battery string to the corresponding positions of the replaced battery pieces according to the positions of the replaced battery pieces.
With continued reference to fig. 1-3, the heat welding mechanism 40 optionally includes a first heat welding mechanism 41 and a second heat welding mechanism 42, wherein,
The first heat welding mechanism 41 is provided at the welding platform 10, and the first heat welding mechanism 41 is used for heating the defective battery piece to weld the defective battery piece with the welding strip welded on the defective battery piece.
The second heating and welding mechanism 42 is located at the welding platform 20, and the second heating and welding mechanism 42 is used for heating the replacement battery piece so as to weld the disassembling end welding strip of the first disassembled battery string and the disassembling end welding strip of the second disassembled battery string to the corresponding positions of the replacement battery piece.
Because the welding platform 10 and the welding platform 20 are both provided with independent heating welding mechanisms, when the welding platform 10 is used for disassembling a battery string to be repaired, the welding platform can synchronously weld the replacement battery piece into another battery string to be repaired after the disassembly is finished, so that the repair efficiency of the battery string is further improved.
Alternatively, the first and second heat welding mechanisms 41 and 42 are infrared lamp box mechanisms.
As shown in fig. 1, optionally, the battery string repairing device in the embodiment of the present invention further includes a flux coating mechanism 60, where the flux coating mechanism 60 is configured to coat flux onto the disassembling end welding strip of the first disassembled battery string and the disassembling end welding strip of the second disassembled battery string before welding, so as to improve welding efficiency and welding quality.
The solder strip used in the battery string is usually a tin-coated copper strip, after the solder strip is detached from the defective battery piece, tin originally coated on the solder strip at the detaching end may remain on the defective battery piece, and when the battery piece is replaced by a brand-new battery piece, the welding between the solder strip at the detaching end and the new battery piece is affected due to no redundant tin on the solder pad of the new battery piece, so that poor welding is caused.
When a new battery piece is selected as the replacement battery piece, in order to ensure that the disassembly end welding strip and the replacement battery piece can be welded well, as shown in fig. 1, the battery string repairing device in the embodiment of the invention further comprises a tin supplementing mechanism 70. The tin supplementing mechanism 70 may be disposed at an edge of the solder disassembly platform 10, and the tin supplementing mechanism 70 is used for supplementing tin to the solder strip at the disassembly end of the first disassembled battery string and the solder strip at the disassembly end of the second disassembled battery string. That is, after the disassembly of the defective battery piece is completed, the first disassembled battery string and the second disassembled battery string are obtained, the tin supplementing operation for the disassembled end welding strip of the first disassembled battery string and the disassembled end welding strip of the second disassembled battery string is performed by controlling the tin supplementing mechanism 70.
After the tin supplementing operation of the disassembling end welding strip of the first disassembled battery string and the disassembling end welding strip of the second disassembled battery string is completed, the welding flux of the disassembling end welding strip of the first disassembled battery string and the welding flux of the disassembling end welding strip of the second disassembled battery string are coated.
In addition to soldering tin to the detachable end tape, a tin soldering mechanism 70 may be optionally disposed at the side of the battery piece feeding mechanism 50, where the tin soldering mechanism 70 is used to perform tin soldering to the bonding pad points of the replaced battery piece. That is, before the replacement battery piece is fed onto the soldering land 20, the soldering of the land point of the replacement battery piece is performed by the soldering mechanism 70.
Of course, the tin-supplementing mechanism 60 may be disposed on both the side of the disassembly platform 10 and the side of the battery piece feeding mechanism 50, and tin supplementation may be performed on both the disassembly end welding strip of the first disassembly battery string and the disassembly end welding strip of the second disassembly battery string, and on the bonding pad points of the replacement battery pieces before welding.
In addition to ensuring that the disassembly end welding strip and the replacement battery piece can be well welded by arranging the tin supplementing mechanism, the battery piece with tin on the welding plate can be selected to be used as the replacement battery piece, for example, undamaged battery pieces disassembled from other good battery strings can be used as the replacement battery piece, and part of tin can remain on the welding plate of the disassembled battery piece; tin can be printed on the bonding pad points of the new battery piece through tin printing equipment, and the battery piece after tin printing is used as a replacement battery piece.
Alternatively, as shown in fig. 1 to 3, the battery piece feeding mechanism 50 includes a first pickup mechanism 51, a regulating mechanism 52, and a second pickup mechanism 53, wherein: the first pickup mechanism 51 is used to pick up the replacement battery pieces from within the battery box and carry the picked replacement battery pieces to the regulating mechanism 52. The regulating mechanism 52 is used for regulating the replacement of the battery cells. The second picking mechanism 53 is used for picking up the regulated replacement battery piece from the regulating mechanism 53 and carrying the regulated replacement battery piece to the welding platform 20.
The specific action process of the battery piece feeding mechanism 50 is as follows:
First, the first pickup mechanism 51 is controlled to pick up a piece of the replacement battery piece from the battery case, and the picked-up replacement battery piece is conveyed to the regularization mechanism 52 for regularization.
Next, the second pickup mechanism 53 is controlled to convey the aligned replacement battery pieces from the alignment mechanism 52 onto the soldering stage 20.
As known to those skilled in the art, during the welding process, it is generally necessary to press the welding fixture onto the stacked battery pieces and the welding strip, so as to ensure the welding effect and prevent the cold joint.
Optionally, the battery string repairing device in the embodiment of the present invention further includes a welding tool picking and placing mechanism, where the welding tool picking and placing mechanism is used to press and place the welding tool onto the replacement battery sheet after stacking the disassembly end welding strip of the first disassembled battery string, the disassembly end welding strip of the second disassembled battery string, and the replacement battery sheet is completed.
After the welding operation is completed by the heating welding mechanism 40, the welding fixture is removed from the replacement battery piece by the welding fixture picking and placing mechanism.
Fig. 4 is a flowchart of a battery string repairing method according to an embodiment of the present invention, where the battery string repairing method may be implemented by the battery string repairing device and the matched control program in the foregoing embodiment, and the processing method may include the following steps:
and 100, feeding the battery strings to be repaired to a de-welding platform.
And 200, controlling a welding platform and a heating welding mechanism to weld and separate the defective battery piece in the battery string to be repaired from the welding strip welded on the defective battery piece, so as to obtain a first disassembled battery string and a second disassembled battery string.
As described in the previous embodiments, the reflow station may include a first mount, an intermediate reflow station, a first side reflow station, and a second side reflow station, wherein: the first side desoldering stage and the second side desoldering stage are translatable toward and away from the intermediate desoldering stage. With the solder mask of this structure, optionally, as shown in fig. 5, step 200 may include the following sub-steps:
Step 201: and controlling the heating welding mechanism to heat the defective battery piece so that the welding strip welded on the defective battery piece is unwelded with the defective battery piece.
Step 202: controlling a first side welding table to drive a battery piece positioned on the first side of the defective battery piece to move horizontally away from the middle welding table, so that a welding strip welded on the adjacent battery piece on the first side of the defective battery piece is separated from the defective battery piece, and a first disassembled battery string is obtained; and controlling the second side welding disassembly table to drive the battery piece positioned on the second side of the defective battery piece to move horizontally away from the middle welding disassembly table, so that the welding strip welded on the adjacent battery piece on the second side of the defective battery piece is separated from the defective battery piece, and a second disassembled battery string is obtained.
In step 202, the first side welding table and the second side welding table may be synchronously controlled to translate away from the middle bearing table, so as to synchronously obtain two disassembled battery strings. Or, one of the strings is controlled to translate away from the middle bearing table, and then the other string is controlled to translate away from the middle bearing table, so that two disassembled battery strings are obtained successively.
Step 300, controlling a battery string transfer mechanism to feed the first disassembled battery string and the second disassembled battery string onto a welding platform.
Step 400, controlling a battery piece feeding mechanism to feed the replacement battery pieces onto a welding platform, and controlling a welding strip traction mechanism to respectively traction and stack the disassembly end welding strips of the first disassembly battery string and the disassembly end welding strips of the second disassembly battery string to corresponding positions of the replacement battery pieces.
As described above, the battery cells are distinguished by the welding surfaces of the welding strips, and mainly include two types, one of which is a double-sided welding type battery cell in which the welding strips are required to be welded to both the front and back surfaces, and the other of which is a back-side welding type (IBC) battery cell in which only the welding strips are required to be welded to the back surface. Wherein:
For a battery string to be reworked formed by double sided welded battery tab welding, as shown in fig. 6, step 400 may include the sub-steps of:
Step 401, controlling a first welding strip traction mechanism to traction a dismantling end welding strip of the first dismantling battery string, translating the dismantling end welding strip and the first side welding table towards the middle welding table, and traction and laying the dismantling end welding strip of the first dismantling battery string on the middle welding table.
Optionally, before traction is implemented, the first side welding table is controlled to rise to a high position, and of course, after the first welding belt traction mechanism is controlled to traction the welding belt at the disassembly end of the first disassembled battery string, the first side welding table may be controlled to rise to a high position.
After the first side welding table is translated towards the middle welding table to be in place, the first side welding table is lowered to a low position, so that the welding belt of the disassembly end of the first disassembled battery string is laid on the middle welding table.
And step 402, controlling a battery piece feeding mechanism to feed and stack the replacement battery pieces onto a disassembling end welding strip of the first disassembling battery string.
Step 403, controlling a second welding strip traction mechanism to traction the welding strip at the dismantling end of the second dismantling battery string, translating the welding strip together with the second side welding table towards the middle welding table, and traction and laying the welding strip at the dismantling end of the second dismantling battery string on the replacement battery piece.
Optionally, before traction is implemented, the second side welding table is controlled to rise to a high position, and of course, the second side welding table may be controlled to rise to a high position after the second welding belt traction mechanism is controlled to traction the disassembly end welding belt of the second disassembly battery string.
After the second side welding table translates to the middle welding table, the second side welding table descends to a low position, so that the welding strip of the disassembly end of the second disassembled battery string is laid on the replaced battery piece.
For a battery string to be reworked formed by back-connected (IBC) battery tab welding, as shown in fig. 7, step 400 may include the sub-steps of:
step 401', the battery piece feeding mechanism is controlled to feed the replacement battery piece onto the middle welding table.
Step 402', controlling the first welding strip traction mechanism to traction the welding strip at the dismantling end of the first dismantling battery string, translating the welding strip along with the first side welding table towards the middle welding table, and traction and laying the welding strip at the dismantling end of the first dismantling battery string on the replacement battery piece.
Optionally, before traction is implemented, the first side welding table is controlled to rise to a high position, and of course, after the first welding belt traction mechanism is controlled to traction the welding belt at the disassembly end of the first disassembled battery string, the first side welding table may be controlled to rise to a high position.
After the first side welding table translates to the middle welding table, the first side welding table descends to a low position, so that the welding belt of the disassembly end of the first disassembled battery string is paved on the replaced battery piece.
Step 403', controlling the second welding strip traction mechanism to traction the welding strip at the dismantling end of the second dismantling battery string, translating the welding strip together with the second side welding table towards the middle welding table, and traction and laying the welding strip at the dismantling end of the second dismantling battery string on the replacement battery piece.
Optionally, before traction is implemented, the second side welding table is controlled to rise to a high position, and of course, the second side welding table may be controlled to rise to a high position after the second welding belt traction mechanism is controlled to traction the disassembly end welding belt of the second disassembly battery string.
After the second side welding table translates to the middle welding table, the second side welding table descends to a low position, so that the welding strip of the disassembly end of the second disassembled battery string is laid on the replaced battery piece.
As described above, in some alternative embodiments, the battery string repair device further includes a tin-replenishment mechanism, wherein the tin-replenishment mechanism may be disposed on an edge side of the de-soldering platform and may be disposed on an edge side of the battery sheet feeding mechanism. Tin supplementing mechanisms can be arranged on the side of the welding disassembly platform and the side of the battery piece feeding mechanism respectively.
When the tin supplementing mechanism is arranged on the side of the welding platform, the battery string repairing method provided by the invention further comprises the following steps:
And controlling a tin supplementing mechanism positioned at the side of the welding platform to supplement tin to the welding strip at the dismantling end of the first dismantling battery string and the welding strip at the dismantling end of the second dismantling battery string.
When the tin supplementing mechanism is arranged on the side of the battery piece feeding mechanism, the battery string repairing method provided by the invention can further comprise the following steps:
Before feeding the replacement battery piece onto the welding platform, controlling a tin supplementing mechanism positioned at the side of the battery piece feeding mechanism to supplement tin to the welding pad point of the replacement battery piece.
When the solder supplementing mechanisms are respectively arranged on the side of the solder disassembly platform and the side of the battery piece feeding mechanism, the battery string repairing method provided by the invention can further comprise the following steps:
And controlling a tin supplementing mechanism positioned at the side of the welding platform to supplement tin to the welding strip at the dismantling end of the first dismantling battery string and the welding strip at the dismantling end of the second dismantling battery string.
Before feeding the replacement battery piece onto the welding platform, controlling a tin supplementing mechanism positioned at the side of the battery piece feeding mechanism to supplement tin to the welding pad point of the replacement battery piece.
The invention has been described above in sufficient detail with a certain degree of particularity. It will be appreciated by those of ordinary skill in the art that the descriptions of the embodiments are merely exemplary and that all changes that come within the true spirit and scope of the invention are desired to be protected. The scope of the invention is indicated by the appended claims rather than by the foregoing description of the embodiments.

Claims (16)

1.一种电池串返修装置，其特征在于，所述电池串返修装置包括解焊平台、焊接平台、电池串移载机构、焊带牵引机构、加热焊接机构及电池片供料机构，其中：1. A battery string repair device, characterized in that the battery string repair device comprises a desoldering platform, a welding platform, a battery string transfer mechanism, a welding ribbon pulling mechanism, a heating welding mechanism and a battery cell feeding mechanism, wherein: 所述解焊平台用于承载待返修电池串，并配合所述加热焊接机构将所述待返修电池串中的缺陷电池片与焊接在所述缺陷电池片上的焊带解焊并分离，得到第一拆解电池串和第二拆解电池串；The desoldering platform is used to carry the battery string to be repaired, and cooperate with the heating and welding mechanism to desolder and separate the defective battery cells in the battery string to be repaired from the welding ribbons welded on the defective battery cells, so as to obtain a first disassembled battery string and a second disassembled battery string; 所述电池串移载机构用于将所述第一拆解电池串和所述第二拆解电池串移载至所述焊接平台上；The battery string transfer mechanism is used to transfer the first disassembled battery string and the second disassembled battery string to the welding platform; 所述电池片供料机构用于将替换电池片上料至所述焊接平台上；The battery cell feeding mechanism is used to feed the replacement battery cells onto the welding platform; 所述焊带牵引机构将所述第一拆解电池串的拆解端焊带和所述第二拆解电池串的拆解端焊带牵引叠放至所述替换电池片的对应位置上；The welding strip pulling mechanism pulls the welding strip of the disassembled end of the first disassembled battery string and the welding strip of the disassembled end of the second disassembled battery string and stacks them to the corresponding position of the replacement battery sheet; 所述加热焊接机构还用于将叠放的所述拆解端焊带焊接至对应的所述替换电池片，得到返修后的电池串；The heating and welding mechanism is also used to weld the stacked disassembled end welding strips to the corresponding replacement battery cells to obtain a repaired battery string; 所述解焊平台包括第一安装座、中间解焊台、第一侧解焊台及第二侧解焊台，其中：The desoldering platform comprises a first mounting seat, a middle desoldering station, a first side desoldering station and a second side desoldering station, wherein: 所述中间解焊台固定安装在所述第一安装座上，所述中间解焊台用于承载所述待返修电池串中的所述缺陷电池片；The intermediate desoldering station is fixedly mounted on the first mounting seat, and the intermediate desoldering station is used to carry the defective battery cell in the battery string to be repaired; 所述第一侧解焊台滑动连接在所述第一安装座上，所述第一侧解焊台用于承载位于所述缺陷电池片的第一侧的电池片，所述第一侧解焊台被配置为能够朝向或远离所述中间解焊台平移；The first side desoldering station is slidably connected to the first mounting seat, the first side desoldering station is used to carry the battery cell located on the first side of the defective battery cell, and the first side desoldering station is configured to be able to translate toward or away from the middle desoldering station; 所述第二侧解焊台滑动连接在所述第一安装座上，所述第二侧解焊台用于承载位于所述缺陷电池片的第二侧的电池片，所述第二侧解焊台被配置为能够朝向或远离所述中间解焊台平移；The second side desoldering station is slidably connected to the first mounting seat, the second side desoldering station is used to carry the battery cell located on the second side of the defective battery cell, and the second side desoldering station is configured to be able to translate toward or away from the middle desoldering station; 所述焊接平台包括第二安装座、中间焊接台、第一侧焊接台及第二侧焊接台，其中：The welding platform includes a second mounting seat, a middle welding platform, a first side welding platform and a second side welding platform, wherein: 所述中间焊接台固定安装在所述第二安装座上，所述中间焊接台用于承载所述替换电池片；The intermediate welding platform is fixedly mounted on the second mounting seat, and the intermediate welding platform is used to carry the replacement battery cell; 所述第一侧焊接台活动安装在所述第二安装座上并位于所述中间焊接台的第一侧，所述第一侧焊接台用于承载所述第一拆解电池串，所述第一侧焊接台被配置为能够朝向或远离所述中间焊接台平移，以及被配置为能够在竖直方向上升降；The first side welding platform is movably mounted on the second mounting seat and is located on a first side of the middle welding platform. The first side welding platform is used to carry the first disassembled battery string. The first side welding platform is configured to be able to translate toward or away from the middle welding platform, and is configured to be able to rise and fall in a vertical direction. 所述第二侧焊接台活动安装在所述第二安装座上并位于所述中间焊接台的第二侧，所述第二侧焊接台用于承载所述第二拆解电池串，所述第二侧焊接台被配置为能够朝向或远离所述中间焊接台平移，以及被配置为能够在竖直方向上升降。The second side welding table is movably mounted on the second mounting seat and is located on the second side of the middle welding table. The second side welding table is used to carry the second disassembled battery string. The second side welding table is configured to be able to translate toward or away from the middle welding table, and is configured to be able to rise and fall in the vertical direction. 2.如权利要求1所述的电池串返修装置，其特征在于：2. The battery string repair device according to claim 1, characterized in that: 所述中间解焊台的承载面上设置有用于吸附所述缺陷电池片的第一吸附孔，所述中间解焊台内设置有第一加热组件；A first adsorption hole for adsorbing the defective battery cell is arranged on the bearing surface of the intermediate desoldering station, and a first heating component is arranged in the intermediate desoldering station; 所述第一侧解焊台靠近所述中间解焊台的端部设有第一侧解焊吸附板，所述第一侧解焊吸附板用于承载及吸附位于所述缺陷电池片第一侧的邻接电池片；The first side desoldering station is provided with a first side desoldering adsorption plate at an end portion close to the middle desoldering station, and the first side desoldering adsorption plate is used to carry and adsorb the adjacent battery cell located on the first side of the defective battery cell; 所述第二侧解焊台靠近所述中间解焊台的端部设有第二侧解焊吸附板，所述第二侧解焊吸附板用于承载及吸附位于所述缺陷电池片第二侧的邻接电池片。A second side desoldering absorption plate is provided at the end of the second side desoldering station close to the middle desoldering station, and the second side desoldering absorption plate is used to carry and absorb the adjacent battery cell located on the second side of the defective battery cell. 3.如权利要求2所述的电池串返修装置，其特征在于，所述中间解焊台、所述第一侧解焊吸附板及所述第二侧解焊吸附板上均设置有焊带限位槽。3. The battery string repair device as described in claim 2 is characterized in that the middle desoldering station, the first side desoldering adsorption plate and the second side desoldering adsorption plate are all provided with solder strip limiting grooves. 4.如权利要求1所述的电池串返修装置，其特征在于：4. The battery string repair device according to claim 1, characterized in that: 所述中间焊接台的承载面上设置有用于吸附所述替换电池片的第二吸附孔，所述中间焊接台内设置有第二加热组件；A second adsorption hole for adsorbing the replacement battery cell is provided on the bearing surface of the intermediate welding platform, and a second heating component is provided in the intermediate welding platform; 所述第一侧焊接台靠近所述中间焊接台的端部设有第一侧焊接吸附板，所述第一侧焊接吸附板用于承载及吸附所述第一拆解电池串的拆解端电池片；A first side welding adsorption plate is provided at an end of the first side welding platform close to the middle welding platform, and the first side welding adsorption plate is used to carry and adsorb the disassembled end battery cell of the first disassembled battery string; 所述第二侧焊接台靠近所述中间焊接台的端部设有第二侧焊接吸附板，所述第二侧焊接吸附板用于承载及吸附所述第二拆解电池串的拆解端电池片。A second side welding adsorption plate is provided at the end of the second side welding platform close to the middle welding platform, and the second side welding adsorption plate is used to carry and adsorb the disassembled end battery cells of the second disassembled battery string. 5.如权利要求1所述的电池串返修装置，其特征在于：所述焊带牵引机构包括第一焊带牵引机构和第二焊带牵引机构，其中：5. The battery string repair device according to claim 1, characterized in that: the solder strip pulling mechanism comprises a first solder strip pulling mechanism and a second solder strip pulling mechanism, wherein: 所述待返修电池串中的电池片上表面和下表面均焊接有焊带，所述第一焊带牵引机构用于将所述第一拆解电池串的拆解端焊带牵引并铺放至所述中间焊接台上；所述电池片供料机构将所述替换电池片上料并叠放至所述第一拆解电池串的拆解端焊带上；所述第二焊带牵引机构用于将所述第二拆解电池串的拆解端焊带牵引并铺放至所述替换电池片上；The upper and lower surfaces of the battery cells in the battery string to be repaired are welded with welding strips, and the first welding strip pulling mechanism is used to pull the disassembly end welding strip of the first disassembled battery string and lay it on the intermediate welding table; the battery cell feeding mechanism feeds the replacement battery cell and stacks it on the disassembly end welding strip of the first disassembled battery string; the second welding strip pulling mechanism is used to pull the disassembly end welding strip of the second disassembled battery string and lay it on the replacement battery cell; 或者，or, 所述待返修电池串中的电池片为IBC电池片，所述电池片供料机构将所述替换电池片上料至所述中间焊接台上，所述第一焊带牵引机构用于将所述第一拆解电池串的拆解端焊带牵引并铺放至所述替换电池片上；所述第二焊带牵引机构用于将所述第二拆解电池串的拆解端焊带牵引并铺放至所述替换电池片上。The battery cells in the battery string to be repaired are IBC battery cells. The battery cell feeding mechanism feeds the replacement battery cells onto the intermediate welding table. The first welding tape traction mechanism is used to traction the disassembly end welding tape of the first disassembled battery string and lay it onto the replacement battery cell; the second welding tape traction mechanism is used to traction the disassembly end welding tape of the second disassembled battery string and lay it onto the replacement battery cell. 6.如权利要求1所述的电池串返修装置，其特征在于：所述电池串返修装置还包括视觉装置，所述视觉装置设置在所述中间焊接台上方，所述视觉装置用于确定所述替换电池片的位置，所述焊带牵引机构根据所述替换电池片的位置将所述第一拆解电池串的拆解端焊带和所述第二拆解电池串的拆解端焊带分别牵引叠放至所述替换电池片的对应位置上。6. The battery string repair device as described in claim 1 is characterized in that: the battery string repair device also includes a visual device, the visual device is arranged above the intermediate welding table, the visual device is used to determine the position of the replacement battery cell, and the solder strip traction mechanism pulls the disassembly end solder strip of the first disassembled battery string and the disassembly end solder strip of the second disassembled battery string respectively and stacks them to the corresponding position of the replacement battery cell according to the position of the replacement battery cell. 7.如权利要求1所述的电池串返修装置，其特征在于：7. The battery string repair device according to claim 1, characterized in that: 所述加热焊接机构包括第一加热焊接机构和第二加热焊接机构，其中，所述第一加热焊接机构设置在所述解焊平台处，用于加热所述缺陷电池片，以将所述缺陷电池片与焊接在所述缺陷电池片上的焊带解焊；所述第二加热焊接机构位于所述焊接平台处，用于加热所述替换电池片，以将所述第一拆解电池串的拆解端焊带和所述第二拆解电池串的拆解端焊带焊至所述替换电池片的对应位置上。The heating and welding mechanism includes a first heating and welding mechanism and a second heating and welding mechanism, wherein the first heating and welding mechanism is arranged at the desoldering platform, and is used to heat the defective battery cell to desolder the defective battery cell from the welding strip welded on the defective battery cell; the second heating and welding mechanism is located at the welding platform, and is used to heat the replacement battery cell to weld the disassembly end welding strip of the first disassembled battery string and the disassembly end welding strip of the second disassembled battery string to the corresponding position of the replacement battery cell. 8.如权利要求1所述的电池串返修装置，其特征在于：所述电池串返修装置还包括助焊剂涂覆机构，所述助焊剂涂覆机构用于在焊接前将助焊剂涂覆至所述第一拆解电池串的拆解端焊带及所述第二拆解电池串的拆解端焊带上。8. The battery string repair device as described in claim 1 is characterized in that: the battery string repair device also includes a flux coating mechanism, and the flux coating mechanism is used to coat flux onto the disassembly end welding strip of the first disassembled battery string and the disassembly end welding strip of the second disassembled battery string before welding. 9.如权利要求1所述的电池串返修装置，其特征在于：所述电池片供料机构包括第一拾取机构、规整机构及第二拾取机构，其中：9. The battery string repair device according to claim 1, characterized in that: the battery cell feeding mechanism comprises a first picking mechanism, a tidying mechanism and a second picking mechanism, wherein: 所述第一拾取机构用于从电池盒内拾取替换电池片，并将拾取的所述替换电池片搬运至所述规整机构；The first picking mechanism is used to pick up a replacement battery cell from the battery box and transport the picked-up replacement battery cell to the arranging mechanism; 所述规整机构用于规整所述替换电池片；The arranging mechanism is used to arrange the replacement battery cells; 所述第二拾取机构用于从所述规整机构上拾取规整后的所述替换电池片并搬运至所述焊接平台上。The second picking mechanism is used to pick up the arranged replacement battery sheet from the arranging mechanism and transport it to the welding platform. 10.如权利要求8所述的电池串返修装置，其特征在于：所述电池串返修装置还包括补锡机构；10. The battery string repair device according to claim 8, characterized in that: the battery string repair device further comprises a tin replenishing mechanism; 所述补锡机构设置在所述解焊平台的边侧，所述补锡机构用于实施对所述第一拆解电池串的拆解端焊带和所述第二拆解电池串的拆解端焊带的补锡；和/或，The tin replenishing mechanism is arranged at the side of the desoldering platform, and the tin replenishing mechanism is used to implement tin replenishing of the disassembly end soldering strip of the first disassembled battery string and the disassembly end soldering strip of the second disassembled battery string; and/or, 所述补锡机构设置在所述电池片供料机构的边侧，所述补锡机构用于实施对所述替换电池片的焊盘点的补锡。The tin replenishing mechanism is arranged on the side of the battery cell feeding mechanism, and the tin replenishing mechanism is used to implement tin replenishing of the soldering pad points of the replacement battery cell. 11.如权利要求1所述的电池串返修装置，其特征在于：所述电池串返修装置还包括焊接工装取放机构，所述焊接工装取放机构用于在需要铺放至所述替换电池片上表面的拆解端焊带铺放于所述替换电池片上后将焊接工装压放至所述拆解端焊带上，以及在焊接后将焊接工装移除。11. The battery string repair device as described in claim 1 is characterized in that: the battery string repair device also includes a welding tool pick-up and placement mechanism, which is used to press the welding tool onto the disassembly end welding strip after the disassembly end welding strip that needs to be laid on the upper surface of the replacement battery cell is laid on the replacement battery cell, and remove the welding tool after welding. 12.一种电池串返修方法，其特征在于：采用如权利要求1所述的电池串返修装置，所述电池串返修方法包括：12. A battery string repair method, characterized in that: using the battery string repair device as claimed in claim 1, the battery string repair method comprises: 将待返修电池串上料至解焊平台；Load the battery string to be repaired onto the desoldering platform; 控制所述解焊平台和所述加热焊接机构将所述待返修电池串中的缺陷电池片与焊接在所述缺陷电池片上的焊带解焊并分离，得到第一拆解电池串和第二拆解电池串；Controlling the desoldering platform and the heating welding mechanism to desolder and separate the defective battery cell in the battery string to be repaired from the welding ribbon welded on the defective battery cell, so as to obtain a first disassembled battery string and a second disassembled battery string; 控制所述电池串移载机构将所述第一拆解电池串和所述第二拆解电池串上料至焊接平台上；Controlling the battery string transfer mechanism to load the first disassembled battery string and the second disassembled battery string onto the welding platform; 控制所述电池片供料机构将替换电池片上料至所述焊接平台上；控制所述焊带牵引机构将所述第一拆解电池串的拆解端焊带和所述第二拆解电池串的拆解端焊带分别牵引叠放至所述替换电池片的对应位置；Control the battery cell feeding mechanism to load the replacement battery cell onto the welding platform; control the welding strip pulling mechanism to pull the disassembly end welding strip of the first disassembled battery string and the disassembly end welding strip of the second disassembled battery string to the corresponding position of the replacement battery cell; 控制所述加热焊接机构将叠放的所述拆解端焊带焊接至对应的所述替换电池片上。The heating and welding mechanism is controlled to weld the stacked disassembled end welding strips to the corresponding replacement battery cells. 13.如权利要求12所述的电池串返修方法，其特征在于，所述控制所述解焊平台和所述加热焊接机构将所述待返修电池串中的缺陷电池片与焊接在所述缺陷电池片上的焊带解焊并分离，包括：13. The battery string repair method according to claim 12, characterized in that the controlling the desoldering platform and the heating welding mechanism to desolder and separate the defective battery cell in the battery string to be repaired from the welding ribbon welded on the defective battery cell comprises: 控制所述加热焊接机构加热所述缺陷电池片，使得焊接在所述缺陷电池片上的焊带与所述缺陷电池片解焊；Controlling the heating and welding mechanism to heat the defective battery cell so that the welding strip welded on the defective battery cell is de-welded from the defective battery cell; 控制所述第一侧解焊台带动位于所述缺陷电池片的第一侧的电池片远离所述中间解焊台平移，使焊接于所述缺陷电池片的第一侧的邻接电池片上的焊带与所述缺陷电池片分离，得到所述第一拆解电池串；控制所述第二侧解焊台带动位于所述缺陷电池片的第二侧的电池片远离所述中间解焊台平移，使焊接于所述缺陷电池片的第二侧的邻接电池片上的焊带与所述缺陷电池片分离，得到所述第二拆解电池串。The first-side desoldering station is controlled to drive the battery cell located on the first side of the defective battery cell to translate away from the middle desoldering station, so that the solder strips on the adjacent battery cells welded on the first side of the defective battery cell are separated from the defective battery cell, thereby obtaining the first disassembled battery string; the second-side desoldering station is controlled to drive the battery cell located on the second side of the defective battery cell to translate away from the middle desoldering station, so that the solder strips on the adjacent battery cells welded on the second side of the defective battery cell are separated from the defective battery cell, thereby obtaining the second disassembled battery string. 14.如权利要求12所述的电池串返修方法，其特征在于，采用如权利要求5所述的电池串返修装置，所述待返修电池串中的电池片上表面和下表面均焊接有焊带，所述控制所述电池片供料机构将替换电池片上料至所述焊接平台上，控制所述焊带牵引机构将所述第一拆解电池串的拆解端焊带和所述第二拆解电池串的拆解端焊带分别牵引叠放至所述替换电池片的对应位置，包括：14. The battery string repair method according to claim 12, characterized in that the battery string repair device according to claim 5 is used, the upper surface and the lower surface of the battery cell in the battery string to be repaired are welded with welding strips, the battery cell feeding mechanism is controlled to feed the replacement battery cell onto the welding platform, and the welding strip pulling mechanism is controlled to pull the disassembly end welding strip of the first disassembled battery string and the disassembly end welding strip of the second disassembled battery string to the corresponding position of the replacement battery cell, including: 控制所述第一焊带牵引机构牵引所述第一拆解电池串的拆解端焊带，并与所述第一侧焊接台一起朝向所述中间焊接台平移，将所述第一拆解电池串的拆解端焊带牵引并铺放至所述中间焊接台上；Control the first welding strip pulling mechanism to pull the disassembly end welding strip of the first disassembled battery string, and translate the first side welding platform toward the middle welding platform together with the first side welding platform, and pull and lay the disassembly end welding strip of the first disassembled battery string onto the middle welding platform; 控制所述电池片供料机构将所述替换电池片上料并叠放至所述第一拆解电池串的拆解端焊带上；Controlling the battery cell feeding mechanism to feed the replacement battery cell and stack it onto the disassembly end welding strip of the first disassembled battery string; 控制所述第二焊带牵引机构牵引所述第二拆解电池串的拆解端焊带，并与所述第二侧焊接台一起朝向所述中间焊接台平移，将所述第二拆解电池串的拆解端焊带牵引并铺放至所述替换电池片上。The second welding strip pulling mechanism is controlled to pull the disassembly end welding strip of the second disassembled battery string, and translate together with the second side welding table toward the middle welding table, and the disassembly end welding strip of the second disassembled battery string is pulled and laid on the replacement battery sheet. 15.如权利要求12所述的电池串返修方法，其特征在于，采用如权利要求5所述的电池串返修装置，所述待返修电池串中的电池片为IBC电池片，所述控制所述电池片供料机构将替换电池片上料至所述焊接平台上，控制所述焊带牵引机构将所述第一拆解电池串的拆解端焊带和所述第二拆解电池串的拆解端焊带分别牵引叠放至所述替换电池片的对应位置，包括：15. The battery string repair method according to claim 12, characterized in that the battery string repair device according to claim 5 is used, the battery cells in the battery string to be repaired are IBC battery cells, the battery cell feeding mechanism is controlled to feed the replacement battery cell onto the welding platform, and the welding strip pulling mechanism is controlled to pull the disassembly end welding strip of the first disassembled battery string and the disassembly end welding strip of the second disassembled battery string to the corresponding position of the replacement battery cell, respectively, comprising: 控制所述电池片供料机构将所述替换电池片上料至所述中间焊接台上；Controlling the battery cell feeding mechanism to feed the replacement battery cell onto the intermediate welding table; 控制所述第一焊带牵引机构牵引所述第一拆解电池串的拆解端焊带，并与所述第一侧焊接台一起朝向所述中间焊接台平移，将所述第一拆解电池串的拆解端焊带牵引并铺放至所述替换电池片上；Control the first welding ribbon pulling mechanism to pull the disassembly end welding ribbon of the first disassembled battery string, and translate together with the first side welding platform toward the middle welding platform, to pull the disassembly end welding ribbon of the first disassembled battery string and lay it on the replacement battery cell; 控制所述第二焊带牵引机构牵引所述第二拆解电池串的拆解端焊带，并与所述第二侧焊接台一起朝向所述中间焊接台平移，将所述第二拆解电池串的拆解端焊带牵引并铺放至所述替换电池片上。The second welding strip pulling mechanism is controlled to pull the disassembly end welding strip of the second disassembled battery string, and translate together with the second side welding table toward the middle welding table, and the disassembly end welding strip of the second disassembled battery string is pulled and laid on the replacement battery sheet. 16.如权利要求12所述的电池串返修方法，其特征在于，采用如权利要求10所述的电池串返修装置，在得到第一拆解电池串和第二拆解电池串之后，所述电池串返修方法还包括：16. The battery string repair method according to claim 12, characterized in that, using the battery string repair device according to claim 10, after obtaining the first disassembled battery string and the second disassembled battery string, the battery string repair method further comprises: 控制位于所述解焊平台边侧的所述补锡机构向所述第一拆解电池串的拆解端焊带和所述第二拆解电池串的拆解端焊带进行补锡；和/或，Controlling the tin replenishing mechanism located at the side of the desoldering platform to replenish tin to the disassembly end soldering strip of the first disassembled battery string and the disassembly end soldering strip of the second disassembled battery string; and/or, 在将替换电池片上料至所述焊接平台上之前，所述电池串返修方法还包括：Before loading the replacement battery cell onto the welding platform, the battery string repair method further includes: 控制位于所述电池片供料机构的边侧的所述补锡机构对所述替换电池片的焊盘点进行补锡。The tin replenishing mechanism located at the side of the battery cell feeding mechanism is controlled to replenish tin on the soldering pad points of the replacement battery cell.
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