CN114864741B - Battery string repairing device and repairing method - Google Patents

Battery string repairing device and repairing method Download PDF

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Publication number
CN114864741B
CN114864741B CN202210405092.6A CN202210405092A CN114864741B CN 114864741 B CN114864741 B CN 114864741B CN 202210405092 A CN202210405092 A CN 202210405092A CN 114864741 B CN114864741 B CN 114864741B
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CN
China
Prior art keywords
battery
welding
string
battery piece
battery string
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CN202210405092.6A
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CN114864741A (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 CN202210405092.6A priority Critical patent/CN114864741B/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/18—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
    • H01L31/1876—Particular processes or apparatus for batch treatment of the devices
    • H01L31/188—Apparatus specially adapted for automatic interconnection of solar cells in a module
    • 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
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
    • H01L21/677—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations
    • H01L21/67739—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations into and out of processing chamber
    • H01L21/67742—Mechanical parts of transfer devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
    • H01L21/677—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations
    • H01L21/67739—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations into and out of processing chamber
    • H01L21/6776—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)
  • Microelectronics & Electronic Packaging (AREA)
  • Mechanical Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Computer Hardware Design (AREA)
  • Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Robotics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Electromagnetism (AREA)
  • Automatic Assembly (AREA)

Abstract

The invention provides a battery string repairing device and a repairing method, the battery string repairing device comprises a repairing platform, a welding belt traction mechanism, a heating welding mechanism and a battery piece feeding mechanism, wherein: the repair platform carries the battery strings to be repaired, and the defective battery pieces in the battery strings to be repaired are detached and separated from the welding strips welded on the defective battery pieces by matching with the heating and welding mechanism, so that a first disassembled battery string and a second disassembled battery string are obtained; the battery piece feeding mechanism feeds the replacement battery piece to the repairing platform; the welding strip traction mechanism is used for traction and stacking of the dismantling end welding strip of the first dismantling battery string and the dismantling end welding strip of the second dismantling battery string to the corresponding position of the replacement battery piece; the heat welding mechanism welds the stacked disassembled end weld bands to the corresponding replacement battery pieces. The device for repairing the battery string realizes automatic disassembly of defective battery pieces in the battery string to be repaired and automatic welding of replacement battery pieces, and greatly improves the repair efficiency and quality of the battery string.

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 due to cold welding or the case of the 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 reprocessing platform, welds area traction mechanism, heating welding mechanism and battery piece feeding mechanism, wherein:
The repair 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 piece feeding mechanism is used for feeding the replacement battery piece onto the repairing platform to replace the defective battery piece;
The welding strip traction mechanism is used for traction and stacking of the dismantling end welding strip of the first dismantling battery string and the dismantling end welding strip of the second dismantling battery string to the corresponding position of the replacement battery piece;
And welding the stacked disassembling end welding strips onto corresponding replacement battery pieces by the heating welding mechanism 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 repairing platform, the battery piece feeding mechanism, the welding belt traction mechanism and the heating welding mechanism. Compared with the traditional sheet changing and repairing mode, the invention greatly improves the repairing efficiency of the battery string and ensures the stability of repairing quality.
In some embodiments, the rework platform comprises a mount, an intermediate load-bearing platform, a first side load-bearing platform, and a second side load-bearing platform, wherein: the middle bearing table is fixedly arranged on the mounting seat, the first side bearing table is movably connected to the mounting seat and positioned on the first side of the middle bearing table, and the first side bearing table is configured to be capable of translating towards or away from the middle bearing table and lifting in the vertical direction; the second side bearing table is movably connected to the mounting seat and is positioned on the second side of the middle bearing table, and the second side bearing table is configured to be capable of translating towards or away from the middle bearing table and lifting in the vertical direction; the middle bearing table is used for bearing the defective battery piece or replacing the battery piece, the first side bearing table is used for bearing the battery piece positioned on the first side of the defective battery piece, and the second side bearing table is used for bearing the battery piece positioned on the second side of the defective battery piece.
Through setting up the platform of repairing into including middle plummer to and can translate and lift first side plummer, second side plummer for middle plummer, on the one hand for the platform of repairing can cooperate the heating welding mechanism will wait to repair the defect battery piece automatic dismantlement in the battery cluster, thereby obtain first dismantlement battery cluster and second dismantlement battery cluster. On the other hand, the repair platform can be matched with the welding strip traction mechanism to draw and stack the welding strips at the disassembly ends of the first disassembled battery strings and the welding strips at the disassembly ends of the second disassembled battery strings to the corresponding positions of the replacement battery pieces.
In some embodiments, the bearing surface of the middle bearing table is provided with adsorption holes, and the bearing surface adsorbs defective battery pieces or replaces battery pieces through adsorption; the end part of the first side bearing table, which is close to the middle bearing table, is provided with a first side adsorption plate, and the first side 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 bearing table, which is close to the middle bearing table, is provided with a second side adsorption plate, and the second side adsorption plate is used for bearing and adsorbing adjacent battery pieces positioned on the second side of the defective battery piece.
The middle bearing table, the first side adsorption plate of the first side bearing table and the second side adsorption plate of the second side bearing table adsorb the defective battery piece or the replacement battery piece respectively and the adjacent battery pieces positioned on the first side and the second side of the defective battery piece, so that the phenomenon that the repairing welding precision is affected due to the movement of the battery pieces in the moving process of the repairing platform is avoided, and the smooth implementation of the disassembling process and the replacing welding process is ensured.
In some embodiments, a heating assembly is disposed within the intermediate carrier for heating defective or replacement cells carried on the intermediate carrier.
The heating assembly is arranged in the middle bearing table, so that the defective battery piece or the replacement battery piece is heated, the disassembly of the defective battery piece and the welding strip or the welding of the replacement battery piece and the welding strip is facilitated, and the disassembly and welding efficiency is further improved.
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 bearing 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 is used for feeding the replacement battery pieces onto the middle bearing table, and the first welding strip traction mechanism is used for dragging and laying the welding strips at the disassembly end of the first disassembly battery string onto 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 repair 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 bearing table, the vision device is used for determining a position of the replacement battery piece, and the welding strip traction mechanism is used for respectively traction and stacking the welding strips at the disassembling ends of the first disassembled battery string and the welding strips at the disassembling ends 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 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 taking the defective battery piece out of the repairing platform and picking up the regular replacement battery piece from the regular mechanism and carrying the replacement battery piece to the repairing platform.
Through first pickup mechanism, regular mechanism and second pickup mechanism, battery piece feeding mechanism can pick up the replacement battery piece in the battery box automatically to after accomplishing the regularity to the replacement battery piece, with the automatic feeding of replacement battery piece to reprocessing the platform on, and realize the automatic unloading to the defect battery piece that disassembles down.
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 repairing platform and is used for supplementing tin to the disassembling end welding strip of the first disassembled battery string and the disassembling end welding strip of the second disassembled 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 repair platform;
Controlling a repair platform and a heating welding mechanism to separate and weld 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;
The battery piece feeding mechanism is controlled to feed the replacement battery piece to the repairing platform so as to replace the defective battery piece;
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, thereby greatly improving the repair efficiency of the battery string and ensuring the stable welding quality.
In some embodiments, controlling the rework platform and the heated welding mechanism to unweld and separate a defective battery cell in the battery string to be reworked from a weld strip 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 the first side bearing table to drive the battery piece positioned on the first side of the defective battery piece to move horizontally away from the middle bearing 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 bearing table to drive the battery piece positioned on the second side of the defective battery piece to move horizontally away from the middle bearing 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 pieces in the battery strings to be repaired is realized by controlling the cooperation action of the repair platform and the heating welding mechanism, so that the first disassembled battery string and the 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 repair platform to replace the defective battery piece, the welding strip traction mechanism is controlled to respectively traction and stack 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 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 bearing table towards the middle bearing table, and traction and laying the welding strip at the dismantling end of the first dismantling battery string on the middle bearing 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 bearing table towards the middle bearing 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 repair platform to replace defective battery pieces, 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 pieces, and the method includes: the battery piece feeding mechanism is controlled to feed the replacement battery piece to the middle bearing 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 bearing table towards the middle bearing 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 bearing table towards the middle bearing 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 repairing platform to supplement tin to the welding strip at the disassembling end of the first disassembled battery string and the welding strip at the disassembling end of the second disassembled battery string; and/or, before feeding the replacement battery piece onto the repair platform, the battery string repair 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 schematic structural diagram of a battery string repairing device according to an embodiment of the present invention under a fourth view angle;
FIG. 5 is a flowchart of a method for repairing a battery string according to an embodiment of the present invention;
FIG. 6 is a flowchart of a battery string repair method according to another embodiment of the present invention;
FIG. 7 is a flowchart of a battery string repair method according to still another embodiment of the present invention;
FIG. 8 is a flowchart of a battery string repair method according to another embodiment of the present invention;
Wherein, the reference numerals are as follows:
A repair platform 10, an intermediate bearing table 11, a first side bearing table 12, a second side bearing table 13, a first side adsorption plate 121 and a second side adsorption plate 131;
Solder strip traction mechanism 20: a first solder ribbon traction mechanism 21 and a second solder ribbon traction mechanism 22;
a heating welding mechanism 30;
Cell feeding mechanism 40: a first grasping mechanism 41, a regulating mechanism 42, and a second grasping mechanism 43;
A flux application mechanism 50;
And a tin supplementing mechanism 60.
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 ensuring the welding quality.
As shown in fig. 1 to 4, the battery string repairing device in the embodiment of the invention includes a repairing platform 10, a welding strip traction mechanism 20, a heating welding mechanism 30 and a battery piece feeding mechanism 40, wherein:
The repair platform 10 is used for carrying a battery string to be repaired, and is matched with the heating welding mechanism 30 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 piece feeding mechanism 40 is used for feeding replacement battery pieces onto the repair platform 10 to replace defective battery pieces.
The welding strip traction mechanism 20 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 30 welds the stacked disassembled end weld bands to the corresponding replacement battery pieces to obtain a repaired battery string.
The battery string repairing device of the embodiment of the invention is used for repairing the battery string to be repaired, and the process is as follows:
the battery string to be reworked is fed onto the rework platform 10.
And controlling the repair platform 10 and the heating welding mechanism 30 to separate and weld 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 piece feeding mechanism 40 is controlled to feed the replacement battery piece onto the repair platform 10 to replace the defective battery piece, that is, the removed defective battery piece is taken away first, and then the replacement battery piece is placed at a position where the defective battery piece is left out after being taken away.
The control welding strip traction mechanism 20 respectively traction and stack 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.
The heating welding mechanism 30 is controlled to weld the stacked disassembled end welding strips to the corresponding replaced battery pieces, thereby obtaining a repaired battery string.
Therefore, through the cooperation of the repair platform 10, the battery piece feeding mechanism 40, the welding strip traction mechanism 20 and the heating welding mechanism 30, the battery string repair device provided by the embodiment of the invention 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, so that the battery string repair efficiency is greatly improved.
Alternatively, the heat welding mechanism 30 is an infrared light box mechanism.
With continued reference to fig. 1-3, optionally, the rework platform 10 includes a mounting base, an intermediate load floor 11, a first side load floor 12, and a second side load floor 13, wherein:
The middle bearing table 11 is fixedly arranged on the mounting seat. The first side bearing table 12 is movably connected to the mounting base and located on a first side of the middle bearing table 11, and the first side bearing table 12 is configured to be able to translate toward or away from the middle bearing table 11 and to be lifted in a vertical direction. The second side bearing table 13 is movably connected to the mounting seat and located on a second side of the middle bearing table 11, and the second side bearing table 13 is configured to be able to translate toward or away from the middle bearing table 11 and to be lifted in a vertical direction.
The middle bearing table 11 is used for bearing the defective battery piece or replacing the battery piece, the first side bearing table 12 is used for bearing the battery piece positioned on the first side of the defective battery piece, and the second side bearing table 13 is used for bearing the battery piece positioned on the second side of the defective battery piece.
The repair platform 10 is matched with the heating welding mechanism 30, and 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 is as follows:
In the initial state, the middle bearing table 11, the first side bearing table 12 and the second side bearing table 13 are butted in the horizontal direction and aligned in the vertical direction, that is, the middle bearing table 11, the first side bearing table 12 and the second side bearing table 13 are butted to form a continuous horizontal bearing table 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 bearing table 11, wherein the battery pieces positioned on the first side of the defective battery pieces are positioned on the first side bearing table 12, and the battery pieces positioned on the second side of the defective battery pieces are positioned on the second side bearing table 13.
And (3) performing desoldering and separation on the defective battery piece:
the heat welding mechanism 30 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 bearing 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 bearing 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 bearing table 13 to drive the battery piece positioned on the second side of the defective battery piece to translate away from the middle bearing 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.
Alternatively, the translation of the first side bearing table 12 and the second side bearing table 13 away from the middle bearing table 11 can be synchronously controlled, so as to synchronously obtain two disassembled battery strings. Or one of the battery strings is controlled to translate away from the middle bearing table 11, and then the other battery string is controlled to translate away from the middle bearing table 11, so that two disassembled battery strings are obtained successively.
Optionally, the welding strip traction mechanism 20 includes a first welding strip traction mechanism 21 and a second welding strip traction mechanism 22, where the first welding strip traction mechanism 21 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 22 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 20, the battery piece feeding mechanism 40 and the repairing platform 10 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, i.e. after the disassembly of the defective battery cells described above is completed, the first side loading table 12 and the second side loading table 13 are both far away from the middle loading table 11. The first battery string of disassembling is born on first side plummer 12, and the welding strip of the end of disassembling of first battery string outwards stretches out first side plummer 12, and the second battery string of disassembling is born on second side plummer 13, and the welding strip of the end of disassembling of second battery string all outwards stretches out second side plummer 13.
Before the stacking operation, after the first side bearing table 12 and the second side bearing table 13 are controlled to rise to the high position, the first welding strip traction mechanism 21 and the second welding strip traction mechanism 22 are controlled to traction the disassembling end welding strip of the first disassembled battery string and the disassembling end welding strip of the second disassembled battery string.
Of course, after the first welding strip traction mechanism 21 and the second welding strip traction mechanism 22 are controlled to draw the disassembly end welding strip of the first disassembled battery string and the disassembly end welding strip of the second disassembled battery string, the first side bearing table 12 and the second side bearing table 13 may be controlled to be raised to the high positions.
By controlling the first side bearing table 12 and the second side bearing table 13 to rise to the high position and then performing stacking operation, the traction movement of the disassembling end welding strip on the high position is realized, and interference with the middle bearing table or the replacement battery piece in the traction process can be avoided.
And (3) performing stacking operation:
First, the first welding strip traction mechanism 21 is controlled to translate towards the middle bearing table 11 together with the first side bearing table 12, and in the traction process, the welding strip at the dismantling end of the first dismantling battery string is kept to be horizontally drawn until the welding strip at the dismantling end of the first dismantling battery string reaches the upper side of the middle bearing table 11. The first side bearing table 12 and the first welding belt traction mechanism 21 are controlled to descend, so that the welding belt at the disassembly end of the first disassembled battery string is laid on the middle bearing table 11.
Next, the battery piece feeding mechanism 40 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 22 and the second side bearing table 13 are controlled to translate towards the middle bearing table 11, and in the traction process, the welding strip of the disassembly end of the second disassembled battery string is kept to be horizontally pulled until the welding strip of the disassembly end of the second disassembled battery string reaches the upper side of the replaced battery piece, and the second side bearing table 13 and the second welding strip traction mechanism 22 are controlled to descend, so that the welding strip of the disassembly end 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 repair platform 10, the to-be-repaired battery string is upward in back face; the welding strip traction mechanism 20, the battery piece feeding mechanism 40 and the repairing platform 10 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 loading table 12 and the second side loading table 13 are both far away from the middle loading table 11. The first battery string of disassembling is born on first side plummer 12, and the welding strip of the end of disassembling of first battery string outwards stretches out first side plummer 12, and the second battery string of disassembling is born on second side plummer 13, and the welding strip of the end of disassembling of second battery string all outwards stretches out second side plummer 13.
Before the stacking operation, the first side bearing table 12 and the second side bearing table 13 can be controlled to rise to the high position, and then the first welding strip traction mechanism 21 and the second welding strip traction mechanism 22 are controlled to traction the disassembling end welding strip of the first disassembled battery string and the disassembling end welding strip of the second disassembled battery string.
Of course, after controlling the first and second strap pulling mechanisms 21 and 22 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 carriages 12 and 13 may be controlled to be raised to the high position.
And (3) performing stacking operation:
first, the battery piece feeding mechanism 40 is controlled to feed the replacement battery piece onto the intermediate carrier table, and ensure that the back of the replacement battery piece faces upward.
Next, the first welding strip traction mechanism 21 is controlled to translate towards the middle bearing table 11 together with the first side bearing table 12, and in the traction process, the welding strip at the dismantling end of the first dismantling battery string is kept to be horizontally drawn until the welding strip at the dismantling end of the first dismantling battery string reaches the upper side of the replacing battery piece. The first side bearing table 12 and the first welding belt traction mechanism 21 are controlled to descend, so that the welding belt at the disassembly end of the first disassembled battery string is laid on the replaced battery piece.
Finally, the second welding strip traction mechanism 22 and the second side bearing table 13 are controlled to translate towards the middle bearing table 11, and in the traction process, the welding strip of the disassembly end of the second disassembled battery string is kept to be horizontally pulled until the welding strip of the disassembly end of the second disassembled battery string reaches the upper side of the replaced battery piece, and the second side bearing table 13 and the second welding strip traction mechanism 22 are controlled to descend, so that the welding strip of the disassembly end of the second disassembled battery string is laid on the replaced 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 heating component is disposed in the middle bearing table 11, and in the disassembling process, the heating component can be matched with the heating welding mechanism 30 to heat the defective battery piece borne on the middle bearing table 11, so that the disassembling efficiency of the defective battery piece is improved. In the welding process, the heating assembly can be matched with the heating welding mechanism 30 to heat the replacement battery piece loaded on the middle bearing table 11, so that the welding efficiency of the replacement battery piece is improved.
With continued reference to fig. 1 to 3, optionally, the bearing surface of the intermediate bearing table 11 is provided with adsorption holes, and the bearing surface adsorbs defective cells or replacement cells through adsorption. The end of the first side bearing table 12, which is close to the middle bearing table, is provided with a first side adsorption plate 121, and the first side adsorption plate 121 is used for bearing and adsorbing the adjacent battery pieces positioned on the first side of the defective battery piece. The end of the second side bearing table 13 near the middle bearing table 11 is provided with a second side adsorption plate 131, and the second side adsorption plate 131 is used for bearing and adsorbing adjacent battery pieces positioned on the second side of the defective battery piece. The first side adsorption plate 121 and the second side adsorption plate 131 may also employ adsorption holes as adsorption structures.
After the battery string to be repaired is placed on the repair platform 10 and the position of the battery string to be repaired is adjusted, the middle bearing table 11, the first side adsorption plate 121 and the second side 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 bearing table 12 and the second side bearing table 13 are ensured to move away from the middle bearing table 11, the defective battery piece can be stably kept on the middle bearing table 11, thereby smoothly disassembling the defective battery piece, 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 disassembling process.
In addition, during stacking and welding, the middle carrying platform 11, the first side adsorption plate 121 and the second side adsorption plate 131 can respectively adsorb the replacement battery piece, the battery piece at the disassembly end of the first disassembly battery piece (i.e. the adjacent battery piece at the first side of the defect piece before disassembly) and the battery piece at the disassembly end of the second disassembly battery piece (i.e. the adjacent battery piece at the second side of the defect piece before disassembly), so that the welding strip traction mechanism 20 and the battery piece feeding mechanism 40 can smoothly stack the welding strip at the disassembly end of the first disassembly battery string, the welding strip at the disassembly end of the second disassembly battery string and the replacement battery piece.
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 bearing table 11, and the vision device is used to determine a position of the replacement battery piece.
The welding strip traction mechanism 20 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.
As shown in fig. 1, optionally, the battery string repairing device in the embodiment of the present invention further includes a flux coating mechanism 50, where the flux coating mechanism 50 is configured to automatically 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 60. The tin supplementing mechanism 60 may be optionally disposed at an edge of the repair platform 10, where the tin supplementing mechanism 60 is used for implementing automatic tin supplementing on the disassembling end welding strip of the first disassembled battery string and the disassembling end welding strip 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 60.
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, optionally, a tin soldering mechanism 60 may be disposed at the side of the battery piece feeding mechanism 40, where the tin soldering mechanism 60 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 repair stage 10, the tin-replenishing of the land point of the replacement battery piece is performed by the tin-replenishing mechanism 60.
Of course, the tin-supplementing mechanism 60 may be disposed on both the side of the repair platform 10 and the side of the battery piece feeding mechanism 40, and tin supplementation may be performed on both the disassembling end welding strip of the first disassembled battery string and the disassembling end welding strip of the second disassembled 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 40 includes a first pickup mechanism 41, a regulating mechanism 42, and a second pickup mechanism 43, wherein: the first pickup mechanism 41 is used to pick up the replacement battery pieces from the battery box and carry the picked replacement battery pieces to the regulating mechanism 42. The regulating mechanism 42 is used for regulating the replacement of the battery cells. The second picking mechanism 43 is used for taking the defective battery piece from the repairing platform, and picking up the aligned replacement battery piece from the alignment mechanism 43 and carrying the aligned replacement battery piece to the repairing platform 10.
The specific action process of the battery piece feeding mechanism 40 is as follows:
The first picking mechanism 41 is controlled to pick up a piece of replacement battery piece from the battery case and convey the picked replacement battery piece to the regulating mechanism 42 for regulation.
The second pick-up mechanism 43 is controlled to remove the defective battery cell from the rework platform and to transfer the conditioned replacement battery cell from the conditioning mechanism 42 to the rework platform 10.
Through the cooperation of the first picking mechanism 41, the regulating mechanism 42 and the second picking mechanism 43, the battery piece feeding mechanism 40 can automatically pick up the replacement battery pieces from the battery box, automatically feed the replacement battery pieces to the repairing platform 10 after finishing regulating the replacement battery pieces, and realize automatic discharging of the disassembled defective battery pieces.
Alternatively, as shown in fig. 1, the second pick-up mechanism 43 includes a first suction portion and a second suction portion disposed side by side. The second pick-up mechanism 43 operates as follows:
after the regularization mechanism 42 completes the regulation of the replacement battery piece, the second pick-up mechanism 43 is controlled to move to the upper side of the regularization mechanism 42, and the replacement battery piece is adsorbed by the first adsorption part.
Then, the second pick-up mechanism 43 is controlled to move above the repair platform 10, the second pick-up portion picks up the detached defective battery piece first, and the first pick-up portion releases the replacement battery piece to a position where the defective battery piece is left after being taken out.
Next, the second pickup mechanism 43 is controlled to move to the defective cell recovery station. After the defective battery piece is released by the second suction part, the second pickup mechanism 43 is controlled to move above the regulating mechanism 42 so as to suck and feed the next replacement battery piece.
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 welding strip on the upper surface of the replacement battery sheet after the first disassembling end welding strip of the battery string, the second disassembling end welding strip of the battery string, and the stacking of the replacement battery sheet are completed.
After the welding operation is completed by the heating welding mechanism 30, the welding tool is removed from the replacement battery piece by the welding tool taking and placing mechanism.
Fig. 5 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 repair platform.
And 200, controlling a repair platform and a heating welding mechanism to separate and weld 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 rework platform may include a mount, an intermediate load floor, a first side load floor, and a second side load floor, wherein: the first side bearing table and the second side bearing table can translate towards or away from the middle bearing table and lift.
With the rework platform of this structure, optionally, as shown in fig. 6, 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 the first side bearing table to drive the battery piece positioned on the first side of the defective battery piece to move horizontally away from the middle bearing 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 bearing table to drive the battery piece positioned on the second side of the defective battery piece to move horizontally away from the middle bearing 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 translation of the first side bearing table and the second side bearing table away from the middle bearing table may be synchronously controlled, 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.
And 300, controlling a battery piece feeding mechanism to feed the replacement battery piece onto a repairing platform so as to replace the defective battery piece, and controlling a welding strip traction mechanism 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.
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. 7, step 300 may include the sub-steps of:
Step 301, controlling a first welding strip traction mechanism to traction a welding strip at a dismantling end of a first dismantling battery string, translating the welding strip together with a first side bearing table towards an intermediate bearing table, and traction and laying the welding strip at the dismantling end of the first dismantling battery string on the intermediate bearing table.
Optionally, before traction is implemented, the first side bearing table is controlled to rise to a high position, and of course, after the first welding belt traction mechanism pulls 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 bearing table translates to the middle bearing table, the first side bearing table descends to a low position, so that the welding strip of the disassembly end of the first disassembled battery string is laid on the middle bearing table.
And 302, controlling a battery piece feeding mechanism to feed and stack the replacement battery pieces onto a welding strip at the disassembly end of the first disassembly battery string.
Step 303, 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 along with the second side bearing table towards the middle bearing 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 bearing 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 pulls the welding belt at the disassembly end of the second disassembled battery string.
After the second side bearing table translates to the middle bearing table, the second side bearing table descends to a low position, so that the welding strip of the disassembly end of the second disassembled battery string is paved on the replaced battery piece.
For a battery string to be reworked formed by back-connected (IBC) battery tab welding, as shown in fig. 8, step 301 may include the sub-steps of:
Step 301', the battery piece feeding mechanism is controlled to feed the replacement battery piece onto the middle bearing table.
Step 302', controlling a first welding strip traction mechanism to traction a dismantling end welding strip of the first dismantling battery string, translating towards the middle bearing table together with the first side bearing table, and traction and laying the dismantling end welding strip of the first dismantling battery string on the replacement battery piece.
Optionally, before traction is implemented, the first side bearing table is controlled to rise to a high position, and of course, after the first welding belt traction mechanism pulls 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 bearing table moves towards the middle bearing table in a translation mode, the first side bearing table descends to a low position, and therefore the welding strip of the disassembly end of the first disassembled battery string is paved on the replaced battery piece.
Step 303', 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 along with the second side bearing table towards the middle bearing 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 bearing 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 pulls the welding belt at the disassembly end of the second disassembled battery string.
After the second side bearing table translates to the middle bearing table, the second side bearing table descends to a low position, so that the welding strip of the disassembly end of the second disassembled battery string is paved on the replaced battery piece.
As previously described, in some alternative embodiments, the battery string repair device further comprises a tin replenishment mechanism, wherein the tin replenishment mechanism may be disposed on an edge side of the repair 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 repairing platform and the side of the battery piece feeding mechanism respectively.
When the tin supplementing mechanism is arranged on the side of the repairing 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 repairing platform to supplement tin to the disassembling end welding strip of the first disassembled battery string and the disassembling end welding strip of the second disassembled 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 the replacement battery piece is fed onto the repairing platform, a tin supplementing mechanism positioned on the side of the battery piece feeding mechanism is controlled to supplement tin to the bonding pad point of the replacement battery piece.
When the side of the repair platform and the side of the battery piece feeding mechanism are respectively provided with the tin supplementing mechanism, the battery string repair method provided by the invention can further comprise the following steps:
And controlling a tin supplementing mechanism positioned at the side of the repairing platform to supplement tin to the disassembling end welding strip of the first disassembled battery string and the disassembling end welding strip of the second disassembled battery string.
Before the replacement battery piece is fed onto the repairing platform, a tin supplementing mechanism positioned on the side of the battery piece feeding mechanism is controlled to supplement tin to the bonding 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 (14)

1. The utility model provides a battery cluster reprocesses device which characterized in that, battery cluster reprocesses device includes reprocesses platform, welding area traction mechanism, heating welding mechanism and battery piece feeding mechanism, wherein:
The repair platform is used for bearing a battery string to be repaired, and is matched with the heating welding mechanism to separate and weld 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;
the battery piece feeding mechanism is used for feeding replacement battery pieces onto the repairing platform to replace the defective battery pieces;
the welding strip traction mechanism is used for traction and stacking of the welding strips at the dismantling ends of the first dismantling battery strings and the welding strips at the dismantling ends of the second dismantling battery strings to the corresponding positions of the replacement battery pieces;
the heating welding mechanism welds the stacked welding strips at the disassembly end to the corresponding replacement battery pieces to obtain a repaired battery string;
The repair platform comprises a mounting seat, a middle bearing table, a first side bearing table and a second side bearing table, wherein:
The middle bearing table is fixedly installed on the installation seat, the first side bearing table is movably connected to the installation seat and located on the first side of the middle bearing table, and the first side bearing table is configured to be capable of translating towards or away from the middle bearing table and lifting in the vertical direction; the second side bearing table is movably connected to the mounting seat and is positioned on the second side of the middle bearing table, and the second side bearing table is configured to be capable of translating towards or away from the middle bearing table and lifting in the vertical direction;
The middle bearing table is used for bearing the defective battery piece or the replacement battery piece, the first side bearing table is used for bearing the battery piece positioned on the first side of the defective battery piece, and the second side bearing table is used for bearing the battery piece positioned on the second side of the defective battery piece.
2. The battery string repair device according to claim 1, wherein,
An adsorption hole is formed in the bearing surface of the middle bearing table, and the bearing surface adsorbs the defective battery piece or the replacement battery piece through the adsorption hole;
The end part of the first side bearing table, which is close to the middle bearing table, is provided with a first side adsorption plate, and the first side 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 bearing table, which is close to the middle bearing table, is provided with a second side adsorption plate, and the second side adsorption plate is used for bearing and adsorbing adjacent battery pieces positioned on the second side of the defective battery piece.
3. The battery string repair device according to claim 1, wherein a heating assembly is provided in the intermediate carrier for heating the defective battery piece or the replacement battery piece carried on the intermediate carrier.
4. The battery string rework device of claim 1 wherein the solder-ribbon traction mechanism comprises a first solder-ribbon traction mechanism and a second solder-ribbon traction 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 dismantling end of the first dismantling battery string onto the middle bearing table; the battery piece feeding mechanism feeds and stacks the replacement battery pieces onto a disassembling end welding strip of the first disassembling battery string; the second welding strip traction mechanism is used for traction and laying of a welding strip at a dismantling end of the second dismantling battery string on the replacement battery piece;
Or alternatively
The battery pieces in the battery strings to be repaired are IBC battery pieces, the battery piece feeding mechanism is used for feeding the replacement battery pieces onto the middle bearing table, and the first welding strip traction mechanism is used for dragging and laying the welding strips at the dismantling ends of the first dismantling battery strings onto the replacement battery pieces; the second welding strip traction mechanism is used for traction and laying of the welding strip at the dismantling end of the second dismantling battery string on the replacement battery piece.
5. The battery string repair device according to claim 1, wherein: the battery string repairing device further comprises a vision device, the vision device is arranged above the middle bearing table, the vision device is used for determining the position of the replacement battery piece, and the welding strip traction mechanism is used for respectively traction and stacking the first disassembling end welding strip of the disassembled battery string and the second disassembling end welding strip of the disassembled battery string to the corresponding position of the replacement battery piece according to the position of the replacement battery piece.
6. The battery string repair device according to claim 1, wherein: the battery string repairing device further comprises a scaling powder coating mechanism, wherein the scaling powder coating mechanism is used for coating scaling powder 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.
7. The battery string repair device according to claim 1, wherein: the battery piece feeding mechanism comprises a first picking mechanism, a regulating mechanism and a second picking mechanism, wherein:
the first picking mechanism is used for picking up the replacement battery piece from the battery box and carrying the picked replacement battery piece to the regulating mechanism;
The regulating mechanism is used for regulating the replacement battery piece;
The second picking mechanism is used for taking the defective battery piece away from the repairing platform, picking up the regular replacement battery piece from the regular mechanism and carrying the replacement battery piece to the repairing platform.
8. The battery string repair device according to claim 1, wherein: the battery string repairing device further comprises a tin supplementing mechanism;
The tin supplementing mechanism is arranged at the side of the repairing platform and is used for supplementing tin to the disassembling end welding strip of the first disassembled battery string and the disassembling end welding strip of the second disassembled battery string; and/or the number of the groups of groups,
The tin supplementing mechanism is arranged on the side of the battery piece feeding mechanism and is used for supplementing tin to the welding plate of the replaced battery piece.
9. The battery string repair device according to claim 1, wherein: the battery string repairing device further comprises a welding tool taking and placing mechanism, wherein the welding tool taking 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 needs to be laid on the upper surface of the replacing battery piece is laid on the replacing battery piece, and removing the welding tool after welding.
10. A battery string repairing method is characterized in that: the battery string repairing apparatus according to claim 1, the battery string repairing method comprising:
Feeding the battery string to be repaired to a repair platform;
Controlling the repair platform and the heating welding mechanism to weld and separate the 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;
the battery piece feeding mechanism is controlled to feed the replacement battery piece onto the repairing platform to replace the defective battery piece, and the welding strip traction mechanism is controlled to respectively traction and stack the disassembling end welding strips of the first disassembling battery string and the disassembling end welding strips of the second disassembling battery string to corresponding positions of the replacement battery piece;
and controlling the heating welding mechanism to weld the stacked disassembling end welding strips to the corresponding replaced battery pieces.
11. The battery string repair method according to claim 10, wherein: the control of the repair platform and the heating welding mechanism to separate and weld a defective battery piece in the battery string to be repaired from a welding strip welded on the defective battery piece comprises the following steps:
controlling the heating and welding mechanism to heat the defective battery piece so that a welding strip welded on the defective battery piece is unwelded with the defective battery piece;
Controlling the first side bearing table to drive the battery piece positioned on the first side of the defective battery piece to move horizontally away from the middle bearing 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 obtaining the first disassembled battery string; and controlling the second side bearing table to drive the battery piece positioned on the second side of the defective battery piece to move horizontally away from the middle bearing table, so that a 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 the second disassembled battery string is obtained.
12. The battery string repair method according to claim 10, wherein: the battery string repairing device according to claim 4, wherein the upper surface and the lower surface of the battery piece in the battery string to be repaired are welded with welding strips, the control of the battery piece feeding mechanism to feed the replacement battery piece onto the repairing platform to replace the defective battery piece, the control of the welding strip traction mechanism to respectively traction and stack 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 replacement battery piece, comprises:
Controlling the first welding strip traction mechanism to traction a welding strip at the dismantling end of the first dismantling battery string, translating the welding strip along with the first side bearing table towards the middle bearing table, and traction and laying the welding strip at the dismantling end of the first dismantling battery string on the middle bearing table;
Controlling the battery piece feeding mechanism to feed and stack the replacement battery pieces onto a disassembling end welding strip of the first disassembled battery string;
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 along with the second side bearing table towards the middle bearing table, and traction and laying the welding strip at the dismantling end of the second dismantling battery string on the replacement battery piece.
13. The battery string repair method according to claim 10, wherein: the battery string repairing device according to claim 4, wherein the battery sheets in the battery string to be repaired are IBC battery sheets, the controlling the battery sheet feeding mechanism to feed replacement battery sheets onto the repairing platform to replace the defective battery sheets, and controlling the welding strip traction mechanism 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 sheets includes:
Controlling the battery piece feeding mechanism to feed the replacement battery piece onto the middle bearing table;
Controlling the first welding strip traction mechanism to traction a welding strip at the dismantling end of the first dismantling battery string, translating the welding strip along with the first side bearing table towards the middle bearing table, and traction and laying the welding strip at the dismantling end of the first dismantling battery string on the replacement battery piece;
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 along with the second side bearing table towards the middle bearing table, and traction and laying the welding strip at the dismantling end of the second dismantling battery string on the replacement battery piece.
14. The battery string repair method according to claim 10, wherein: the battery string repairing apparatus according to claim 8, wherein after obtaining the first disassembled battery string and the second disassembled battery string, the battery string repairing method further comprises:
controlling the tin supplementing mechanism positioned at the side of the repairing platform to supplement tin to the welding strip at the disassembling end of the first disassembled battery string and the welding strip at the disassembling end of the second disassembled battery string; and/or the number of the groups of groups,
Before feeding the replacement battery piece onto the repair platform, the battery string repair method further comprises the following steps:
And controlling the tin supplementing mechanism positioned at the side of the battery piece feeding mechanism to supplement tin to the bonding pad point of the replaced battery piece.
CN202210405092.6A 2022-04-18 2022-04-18 Battery string repairing device and repairing method Active CN114864741B (en)

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117293231A (en) * 2023-11-24 2023-12-26 天合光能股份有限公司 Battery string repairing method, preparation method of replacement battery string and battery string

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013157151A (en) * 2012-01-27 2013-08-15 Komatsu Ntc Ltd Battery case sealing apparatus and battery case sealing method
JP2013223870A (en) * 2012-04-20 2013-10-31 Toyota Motor Corp Device and method for manufacturing secondary battery
CN108010992A (en) * 2017-12-29 2018-05-08 无锡奥特维科技股份有限公司 Battery strings rework equipments
CN109411566A (en) * 2018-10-15 2019-03-01 无锡奥特维科技股份有限公司 Battery strings component device for repairing and method
CN109434235A (en) * 2018-11-20 2019-03-08 无锡奥特维科技股份有限公司 Battery strings desoldering device
CN109434234A (en) * 2018-11-20 2019-03-08 无锡奥特维科技股份有限公司 Battery strings device for repairing
CN209520455U (en) * 2018-11-20 2019-10-22 无锡奥特维科技股份有限公司 Battery strings desoldering device
CN209532330U (en) * 2018-11-20 2019-10-25 无锡奥特维科技股份有限公司 Battery strings device for repairing
SE542478C2 (en) * 2019-03-06 2020-05-19 Binar Quick Lift Systems Ab Battery operated lifting device with simplified access to the interior of the device
CN112975026A (en) * 2021-02-26 2021-06-18 宁夏小牛自动化设备有限公司 Method for repairing solar cell string
WO2021186362A1 (en) * 2020-03-20 2021-09-23 Comau S.P.A. Apparatus for assembling battery cells or battery modules
CN114068763A (en) * 2021-11-23 2022-02-18 无锡奥特维科技股份有限公司 Battery string repair equipment and repair method

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8687336B2 (en) * 2012-01-06 2014-04-01 Polytronics Technology Corp. Over-current protection device and battery protection circuit assembly containing the same
US10730140B2 (en) * 2017-08-29 2020-08-04 Illinois Tool Works Inc. Low energy, motion-assist, point-and-shoot welding torch
KR20210125674A (en) * 2020-04-09 2021-10-19 에스케이이노베이션 주식회사 Battery Modules Housing Welding Methods For Preventing Heat Damage and Battery Module Thereof

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013157151A (en) * 2012-01-27 2013-08-15 Komatsu Ntc Ltd Battery case sealing apparatus and battery case sealing method
JP2013223870A (en) * 2012-04-20 2013-10-31 Toyota Motor Corp Device and method for manufacturing secondary battery
CN108010992A (en) * 2017-12-29 2018-05-08 无锡奥特维科技股份有限公司 Battery strings rework equipments
CN109411566A (en) * 2018-10-15 2019-03-01 无锡奥特维科技股份有限公司 Battery strings component device for repairing and method
CN109434235A (en) * 2018-11-20 2019-03-08 无锡奥特维科技股份有限公司 Battery strings desoldering device
CN109434234A (en) * 2018-11-20 2019-03-08 无锡奥特维科技股份有限公司 Battery strings device for repairing
CN209520455U (en) * 2018-11-20 2019-10-22 无锡奥特维科技股份有限公司 Battery strings desoldering device
CN209532330U (en) * 2018-11-20 2019-10-25 无锡奥特维科技股份有限公司 Battery strings device for repairing
SE542478C2 (en) * 2019-03-06 2020-05-19 Binar Quick Lift Systems Ab Battery operated lifting device with simplified access to the interior of the device
WO2021186362A1 (en) * 2020-03-20 2021-09-23 Comau S.P.A. Apparatus for assembling battery cells or battery modules
CN112975026A (en) * 2021-02-26 2021-06-18 宁夏小牛自动化设备有限公司 Method for repairing solar cell string
CN114068763A (en) * 2021-11-23 2022-02-18 无锡奥特维科技股份有限公司 Battery string repair equipment and repair method

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