CN116100220A - Welding strip connecting device and battery string repairing method - Google Patents

Welding strip connecting device and battery string repairing method Download PDF

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Publication number
CN116100220A
CN116100220A CN202310094792.2A CN202310094792A CN116100220A CN 116100220 A CN116100220 A CN 116100220A CN 202310094792 A CN202310094792 A CN 202310094792A CN 116100220 A CN116100220 A CN 116100220A
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CN
China
Prior art keywords
welding strip
welding
strip
clamping
chuck
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Pending
Application number
CN202310094792.2A
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Chinese (zh)
Inventor
唐建丽
马红伟
王恒
王群
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Wuxi Autowell Technology Co Ltd
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Wuxi Autowell Technology Co Ltd
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Priority to CN202310094792.2A priority Critical patent/CN116100220A/en
Publication of CN116100220A publication Critical patent/CN116100220A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05CAPPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/0241Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work for applying liquid or other fluent material to elongated work, e.g. wires, cables, tubes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05CAPPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C9/00Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
    • B05C9/08Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation
    • B05C9/12Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation the auxiliary operation being performed after the application
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/06Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/06Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
    • B05D3/061Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation using U.V.
    • B05D3/065After-treatment
    • B05D3/067Curing or cross-linking the coating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20Bonding
    • B23K26/21Bonding by welding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K28/00Welding or cutting not covered by any of the preceding groups, e.g. electrolytic welding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/02Carriages for supporting the welding or cutting element
    • B23K37/0252Steering means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • B23K37/0426Fixtures for other work
    • B23K37/0435Clamps
    • B23K37/0443Jigs
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00Semiconductor 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
    • H01L31/04Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
    • H01L31/042PV modules or arrays of single PV cells
    • H01L31/05Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells
    • H01L31/0504Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00Semiconductor 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
    • H01L31/18Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • Power Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Electromagnetism (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Manufacturing & Machinery (AREA)
  • Connection Of Batteries Or Terminals (AREA)

Abstract

The invention provides a welding strip connecting device and a battery string repairing method, wherein the welding strip connecting device is used for connecting a first welding strip and a second welding strip, the welding strip connecting device comprises a welding strip clamping mechanism, a welding mechanism and an adhesive mechanism, wherein: the welding strip clamping mechanism clamps the first welding strip and the second welding strip so that the first welding strip and the second welding strip are horizontally overlapped; the welding mechanism is used for welding the first welding strip and the second welding strip which are horizontally overlapped; the bonding mechanism bonds the first welding strip and the second welding strip which are horizontally overlapped. The welding strip connecting device provided by the invention realizes double fixing of the first welding strip and the second welding strip, so that in the subsequent use process, even if the welding flux at the connecting position of the first welding strip and the second welding strip reaches a molten or semi-molten state, the first welding strip and the second welding strip are also adhered by the sizing material, and the first welding strip and the second welding strip cannot be separated from each other.

Description

Welding strip connecting device and battery string repairing method
Technical Field
The invention relates to the field of battery production, in particular to a welding strip connecting device and a battery string repairing method.
Background
In the repair method of the battery string, one is to cut off the welding strip between the defective battery piece and the adjacent battery piece adjacent to the defective battery piece, replace the original defective battery piece with a new battery piece with the welding strip, and lap-weld the welding strip on the new battery piece with the welding strip on the adjacent battery piece, thereby completing the repair.
When the battery strings are manufactured by using the battery pieces without the main grid, the battery pieces without the main grid are not suitable for high-temperature welding, so that a low-temperature welding belt is needed, the melting temperature of the welding flux of the low-temperature welding belt is generally lower than 200 ℃, the battery strings formed by connecting the battery pieces without the main grid and the low-temperature welding belt in series are repaired by adopting the repairing mode, and then the repaired battery strings are used for manufacturing the photovoltaic module.
Disclosure of Invention
In order to solve the technical problems, the invention provides a welding strip connecting device, which adopts the following technical scheme:
the utility model provides a welding strip connecting device for connect first welding strip and second welding strip, welding strip connecting device includes welding strip clamping mechanism, welding mechanism and bonding mechanism, wherein:
the welding strip clamping mechanism is used for clamping the first welding strip and the second welding strip so that the first welding strip and the second welding strip are horizontally overlapped;
the welding mechanism is used for welding the first welding strip and the second welding strip which are horizontally overlapped;
the bonding mechanism is used for bonding the first welding strip and the second welding strip which are in horizontal lap joint.
According to the welding strip connecting device, after the first welding strip and the second welding strip are overlapped, the welding mechanism is used for welding the overlapped first welding strip and the overlapped second welding strip, and the bonding mechanism is used for bonding the overlapped first welding strip and the overlapped second welding strip, so that double fixing of the first welding strip and the second welding strip is realized. In this way, even if the solder at the connection position of the first and second solder strips reaches a molten or semi-molten state in the subsequent use process, the first and second solder strips are not separated from each other because the first and second solder strips are bonded by the paste.
In some embodiments, the bonding mechanism comprises a drive mechanism and a applicator head, wherein: the glue applying head is connected to the driving end of the driving mechanism, and the driving mechanism is used for driving the glue applying head to move for glue applying; the sizing heads are used for applying sizing material to the first welding strip and the second welding strip which are lapped together, and the sizing material is self-gelling, curing glue or adhesive tape.
The bonding mechanism is simple in structure, and the gluing head is driven to move through the driving mechanism, so that the gluing head can rapidly and accurately apply glue to the first welding strip and the second welding strip which are lapped together.
In some embodiments, the glue is a curing glue, and the welding strip connecting device further comprises a curing light source, wherein the curing light source and the glue applicator head are jointly arranged on the driving end of the driving mechanism; or the driving mechanism comprises a first driving mechanism and a second driving mechanism, the glue applying head is connected to the driving end of the first driving mechanism, and the curing light source is connected to the driving end of the second driving mechanism; the curing light source is used for curing the sizing material applied to the first welding strip and the second welding strip so as to bond the first welding strip and the second welding strip; the curing glue is thermosetting glue, and the curing light source is an infrared light source; or the curing glue is UV glue, and the curing light source is a UV light source.
When the cured adhesive is used as the adhesive, after the adhesive is applied, the adhesive needs to be irradiated by a curing light source to cure the adhesive, so that the first welding strip and the second welding strip are bonded together. The curing light source and the glue applying head are jointly arranged at the driving end of the driving mechanism, so that the curing light source can synchronously move along with the glue applying head, and the glue applying head synchronously cures glue materials while applying glue, thereby improving the bonding efficiency; and install solidification light source and glueing head respectively on first actuating mechanism and second actuating mechanism's driving end, then can realize: after the sizing head completes the sizing operation, the curing light source is used for curing the sizing material, so that the blocking interference of the sizing head to the curing light source can be avoided, and the gluing effect is further improved.
In some embodiments, the solder strip clamping mechanism comprises a moving module, a mounting bracket, a first clamping plate and a second clamping plate, wherein: the mounting bracket is connected to the driving end of the movable module, and the movable module is at least used for driving the mounting bracket to lift; the first clamping plate and the second clamping plate are oppositely arranged on the mounting bracket, a plurality of first chucks are arranged on the first clamping plate, a plurality of second chucks which are in one-to-one correspondence with the first chucks are arranged on the second clamping plate, and the first chucks and the corresponding second chucks form a welding strip clamping assembly; the first clamping plate and the second clamping plate are configured to be capable of moving relatively so as to drive the first clamping head and the second clamping head in each welding strip clamping assembly to clamp a first welding strip and a second welding strip to be overlapped in a matched mode, and the first welding strip and the second welding strip are overlapped together.
Through setting up welding strip clamping mechanism to including removing module, installing support, first grip block and second grip block for welding strip clamping mechanism can be with many pairs of first welding strips and second welding strips synchronous centre gripping, overlap joint together, thereby welding mechanism can carry out the welding to many pairs of first welding strips and second welding strips in succession or in step, with promotion welding efficiency, and gluing mechanism also can carry out the bonding to many pairs of first welding strips and second welding strips in succession or in step, with promotion gluing efficiency.
In some embodiments, the weld bead gripping mechanism further comprises a first translational drive mechanism and a second translational drive mechanism disposed on the mounting bracket, wherein: the first clamping plate is connected to the mounting bracket in a sliding manner and is connected with the driving end of the first translation driving mechanism, and the second clamping plate is connected to the mounting bracket in a sliding manner and is connected with the driving end of the second translation driving mechanism; the first clamping plate and the second clamping plate are driven by the first translation driving mechanism and the second translation driving mechanism to move relatively.
Through the synchronous drive of the first translation driving mechanism and the second translation driving mechanism, the first clamping plate and the second clamping plate can implement relative movement, and then the first clamping head and the second clamping head in each welding strip clamping assembly are driven to be matched for clamping a first welding strip and a second welding strip to be lapped.
In some embodiments, the welding mechanism is an electromagnetic welding mechanism or a laser welding mechanism.
The electromagnetic welding mechanism is in contact with the first welding belt and the second welding belt and electrifies the first welding belt and the second welding belt, so that the first welding belt and the second welding belt are welded together after heating, and the welding effect is improved; the laser welding mechanism irradiates the first welding strip and the second welding strip to heat the first welding strip and the second welding strip in a non-contact mode, so that the first welding strip and the second welding strip are welded together after heating, and welding efficiency is improved.
In some embodiments, the electromagnetic welding mechanism comprises a mounting plate, a lift drive, a lift plate, and a plurality of electrode sets, wherein: the lifting driving part is arranged on the mounting plate, the lifting plate is connected to the mounting plate in a sliding way and is connected with the driving end of the lifting driving part, and the lifting driving part is used for driving the lifting plate to lift; the electrode groups are arranged at the bottom of the lifting plate at intervals side by side and correspond to the welding strip clamping assemblies one by one, and each electrode group comprises a first electrode and a second electrode which are opposite in polarity; when the lifting driving part drives the lifting plate to descend, the first electrode in each electrode group is used for being in press connection with the first welding strip clamped by the corresponding welding strip clamping assembly, and the second electrode in each electrode group is used for being in press connection with the second welding strip clamped by the corresponding welding strip clamping assembly.
Through setting up electromagnetic welding mechanism for electromagnetic welding mechanism has realized the synchronous switch-on to the many pairs of first welding area of being held the subassembly centre gripping by the welding area and the second welding area, thereby implements the synchronous welding to many pairs of first welding area and second welding area, has promoted welding efficiency.
In some embodiments, the first chuck is floatably connected to the first clamping plate via a first floating connection, and the second chuck is floatably connected to the second clamping plate via a second floating connection; when the movable module drives the mounting bracket to descend, the first chuck and the second chuck are respectively pressed on the first welding strip and the second welding strip; when the first clamping plate and the second clamping plate move relatively, the first clamping head and the second clamping head clamp the first welding strip and the second welding strip which are tightly pressed, so that the first welding strip and the second welding strip are horizontally overlapped together.
The first clamping head and the second clamping head can be connected to the first clamping plate and the second clamping plate in an up-down floating mode, so that under the driving of the moving module, the first clamping head and the second clamping head compress the first welding strip and the second welding strip firstly, then the first clamping head and the second clamping head draw close to the middle to clamp the first welding strip and the second welding strip, and therefore the first welding strip and the second welding strip can be guaranteed to be in horizontal lap joint together, and the situation that the first welding strip and the second welding strip are in up-down lap joint is prevented.
In some embodiments, the first floating connection and the second floating connection are identical in structure, the first floating connection including a lifting slide rail, a sliding mounting plate, and a spring, wherein: the lifting slide rail is arranged on the first clamping plate along the vertical direction, the sliding mounting plate is slidably connected on the lifting slide rail and can slide up and down along the lifting slide rail, the first chuck is fixedly arranged at the lower end of the sliding mounting plate, and a spring is arranged between the upper end of the sliding mounting plate and the first clamping plate in a pressing mode.
The floating connecting piece is simple in structure and stable in floating, and the first clamping head and the first clamping plate and the second clamping head and the second clamping plate are connected in a floating mode.
In some embodiments, the bottom surfaces of the clamping ends of the first clamping head and the second clamping head are stepped surfaces, the stepped surfaces comprise a first bottom surface, a second bottom surface and side elevation surfaces, wherein the second bottom surface is lower than the first bottom surface, and the side elevation surfaces are positioned between the first bottom surface and the second bottom surface; the side elevation of the first chuck is opposite to the side elevation of the second chuck, and the side elevation of the first chuck and the side elevation of the second chuck are close to or far away from each other along with the relative movement of the first clamping plate and the second clamping plate; when the movable module drives the mounting bracket to descend, the first bottom surface of the first chuck and the first bottom surface of the second chuck are respectively pressed on the first welding strip and the second welding strip; when the first clamping plate and the second clamping plate move relatively, the side elevation of the first clamping head and the side elevation of the second clamping head clamp the pressed first welding strip and the pressed second welding strip, so that the first welding strip and the second welding strip are in horizontal lap joint.
The bottom surfaces of the clamping ends of the first clamping head and the second clamping head are set to be stepped surfaces, and when the moving module drives the first clamping head and the second clamping head to descend, the first welding strip and the second welding strip enter between the side vertical surface of the first clamping head and the side vertical surface of the second clamping head and are finally pressed by the first bottom surface of the first clamping head and the first bottom surface of the second clamping head respectively. And then the first chuck and the second chuck are close to each other towards the middle, so that the side elevation of the first chuck and the side elevation of the second chuck are driven to clamp the first chuck and the second chuck, and finally, the first chuck and the second chuck are ensured to be horizontally lapped together.
In some embodiments, a first avoiding hole is formed in the first chuck, the first avoiding hole is close to the clamping end of the first chuck, a second avoiding hole is formed in the second chuck, and the second avoiding hole is close to the clamping end of the second chuck; when the side elevation of the first chuck and the side elevation of the second chuck clamp the pressed first welding strip and the pressed second welding strip, the first welding strip is exposed at the first avoidance hole, and the second welding strip is exposed at the second avoidance hole.
Through set up first hole of dodging, second dodging on first chuck, second chuck for electromagnetic welding mechanism's electrode group can pass first hole of dodging, second dodging, and crimping respectively by first chuck, second chuck compressed first welding strip, second welding strip, in order to implement the electromagnetic welding to first welding strip and second welding strip.
In some embodiments, the clamping end of the first chuck is provided with a third avoidance hole, and the clamping end of the second chuck is provided with a fourth avoidance hole; when the side elevation of the first chuck and the side elevation of the second chuck clamp the pressed first welding strip and the pressed second welding strip, the lap joint part of the first welding strip and the second welding strip is exposed from the third avoidance hole and the fourth avoidance hole.
Through dodging the hole, the fourth dodges the hole at the third in the centre gripping end of first chuck, second chuck, realized the exposure to the overlap joint portion of first welding area and second welding area to make laser welding mechanism send the laser beam can pass the hole, fourth dodge the hole and shine to the first welding area, the second welding area that are compressed tightly by first chuck, second chuck, with the implementation to the laser welding of first welding area and second welding area. In addition, the gluing head can also pass through the third avoidance hole and the fourth avoidance hole to apply gluing operation to the first welding strip and the second welding strip.
The invention also provides a battery string repairing method, which comprises the following steps:
cutting off a welding strip between a defective battery piece and an adjacent battery piece in a battery string to be repaired, wherein the adjacent battery piece is a battery piece adjacent to the defective battery piece, and the cut welding strip on the adjacent battery piece is a first welding strip;
taking down the defective battery piece, placing a replacement battery piece at an empty position after the defective battery piece is taken away, and arranging a second welding strip on the replacement battery piece;
clamping the first welding strip and the second welding strip to enable the first welding strip to be horizontally overlapped with the second welding strip;
welding the lap joint part of the first welding strip and the second welding strip, and adhering the lap joint part of the first welding strip and the second welding strip, wherein: the welding is performed after the adhesive bonding or before the adhesive bonding.
The battery string is repaired by adopting the battery string repairing method provided by the invention, and double connection is realized by welding and gluing after the welding strips on the replaced battery pieces and the sheared welding strips on the adjacent battery pieces are horizontally lapped together. Therefore, in the subsequent use process, even if the solder at the connecting position of the welding strip reaches a molten or semi-molten state, the connecting position is bonded by the sizing material, so that the welding strips cannot be separated from each other due to welding failure, and the normal operation of the assembly is ensured.
Drawings
FIG. 1 is a schematic diagram of a solder strip connection device according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of an adhesive mechanism according to an embodiment of the present invention;
FIG. 3 is a schematic view of a solder strip clamping mechanism according to an embodiment of the present invention, after omitting a moving module, in a view angle;
FIG. 4 is a schematic view of a solder strip clamping mechanism according to an embodiment of the present invention (the solder strip clamping mechanism is not shown) from another perspective after the moving module is omitted;
FIG. 5 is a schematic view of a floating connection structure between a first chuck and a first clamping plate according to an embodiment of the present invention;
FIG. 6 is a schematic view of a welding mechanism according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of the structure of the first chuck and the second chuck according to an embodiment of the invention;
FIG. 8 is a schematic view of the structure of the clamping ends of the first and second chucks in the embodiment of FIG. 7;
FIG. 9 is a schematic diagram of the first chuck and the second chuck according to another embodiment of the present invention;
fig. 1 to 9 include:
welding strip clamping mechanism 1:
a mobile module 11;
a mounting bracket 12;
a first clamping plate 13;
a second clamping plate 14;
the first chuck 15: a first bottom surface 151, a second bottom surface 152, a side elevation 153, a first relief hole 154, and a third relief hole 155;
second chuck 16: a second avoidance hole 161 and a fourth avoidance hole 162;
a first translational drive mechanism 17;
a second translational drive mechanism 18;
first floating connection 19: lifting slide rail 191, sliding mounting plate 192, spring 193, guide rod 194;
welding mechanism 2:
a mounting plate 21;
a lift driving unit 22;
a lifting plate 23;
a first electrode 24;
a second electrode 25;
bonding mechanism 3:
a driving mechanism 31;
a glue applicator head 32;
a curing light source 33;
a carrying table 4;
a first solder strip 100; and a second solder strip 200.
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.
The invention provides a welding strip connecting device which is used for connecting a first welding strip and a second welding strip. As shown in fig. 1, the solder strip connecting device in the embodiment of the invention includes a solder strip clamping mechanism 1, a soldering mechanism 2 and an adhesive mechanism 3, wherein:
the welding strip clamping mechanism 1 is used for clamping the first welding strip and the second welding strip so that the first welding strip and the second welding strip are horizontally overlapped.
The welding mechanism 2 is used for welding the first welding strip and the second welding strip which are horizontally overlapped.
The bonding mechanism 3 is used for bonding the first welding strip and the second welding strip which are horizontally overlapped.
According to the welding strip connecting device, the first welding strip and the second welding strip are horizontally lapped through the welding strip clamping mechanism 1, then the lapped first welding strip and the lapped second welding strip are welded through the welding mechanism 2, and the lapped first welding strip and the lapped second welding strip are bonded through the bonding mechanism 3, so that the first welding strip and the second welding strip are doubly connected.
In this way, even if the solder at the connection position of the first solder strip and the second solder strip reaches a molten or semi-molten state in the subsequent use process, the first solder strip and the second solder strip are not separated from each other due to the solder failure because the first solder strip and the second solder strip are adhered by the adhesive.
The glue material can be irreversible glue (namely, can not be melted after solidification), or reversible glue with the melting point far higher than that of solder on the welding strip is used, so that the glue material can be free from the influence of temperature rise in the use process of the assembly, and the phenomenon of glue material bonding failure can not occur.
The welding strip connecting device provided by the embodiment of the invention is suitable for repairing the battery string, for example, in some application examples, the repairing process of the battery string is as follows:
firstly, cutting off a welding strip between a defective battery piece and an adjacent battery piece in a battery string to be repaired, wherein the adjacent battery piece is a battery piece adjacent to the defective battery piece, and the cut welding strip on the adjacent battery piece is a first welding strip.
And then, taking down the defective battery piece, and placing a replacement battery piece at an empty position after the defective battery piece is taken away, wherein the replacement battery piece is provided with a second welding strip. The second welding strip on the replaced battery piece is identical to the welding strip on the removed defective battery piece in position and arrangement condition on the battery piece. That is, the replacement battery piece differs from the removed defective battery piece only in whether the battery piece itself has a defect.
Then, the first and second bonding tapes are held by the bonding tape holding mechanism 1 so that the first bonding tape and the second bonding tape overlap horizontally.
Finally, the welding mechanism 2 is controlled to weld the first welding strip and the second welding strip which are horizontally overlapped, and the bonding mechanism 3 is controlled to bond the first welding strip and the second welding strip which are horizontally overlapped, so that the replacement battery piece is connected into the battery string, and the repair of the battery string is completed. Of course, the welding may be done before bonding or after bonding.
As shown in fig. 1, optionally, the welding strip connection device according to the embodiment of the present invention further includes a carrying table 4 for carrying a battery string to be repaired, where the battery string to be repaired completes repair on the carrying table 4.
Alternatively, as shown in fig. 2, the bonding mechanism 3 includes a driving mechanism 31 and a glue applicator head 32, wherein: the glue applicator head 32 is connected to the drive end of the drive mechanism 31, and the drive mechanism 31 is used for driving the glue applicator head 32 to move and glue. The applicator head 32 is used to apply sizing to the first and second bonding strips that overlap together.
The sizing material is self-gel, solidified glue or adhesive tape. When the sizing material is self-gel or adhesive tape, the first welding strip and the second welding strip are adhered together along with the solidification of the adhesive surface of the self-gel or adhesive tape after sizing. When the sizing material is the curing sizing material, after sizing, the first welding strip and the second welding strip which are subjected to sizing are irradiated by a curing light source, so that the curing sizing material is cured, and the first welding strip and the second welding strip are bonded together.
In some alternative embodiments, as shown in fig. 2, a curing light source 33 is mounted on the driving end of the driving mechanism 31 together with the glue applicator head 32, and the curing light source 33 moves synchronously with the glue applicator head 32, so that the glue applicator head 32 simultaneously applies glue to the glue, and the curing light source 33 simultaneously applies curing to the glue, thereby improving the bonding efficiency.
In other alternative embodiments, the drive mechanism comprises a first drive mechanism and a second drive mechanism, wherein the applicator head 32 is coupled to the drive end of the first drive mechanism and the curing light source 33 is coupled to the drive end of the second drive mechanism. After the glue applying head 32 completes the glue applying operation under the driving of the first driving mechanism, the curing light source 33 cures the glue material under the driving of the second driving mechanism, so that the glue applying head 32 can be prevented from shielding interference to the curing light source 33, and the glue effect is further improved.
The curing glue may be a thermosetting glue or a UV glue, and the corresponding curing light source 33 is an infrared light source or a UV light source.
As shown in fig. 1, 3 and 4, the welding strip clamping mechanism 1 includes a moving module 11, a mounting bracket 12, a first clamping plate 13 and a second clamping plate 14, wherein:
the mounting bracket 12 is connected to a driving end of the moving module 11, and the moving module 11 is at least used for driving the mounting bracket 12 to lift. The first clamping plate 13 and the second clamping plate 14 are oppositely arranged on the mounting bracket 12, a plurality of first chucks 15 are arranged on the first clamping plate 13, a plurality of second chucks 16 which are in one-to-one correspondence with the first chucks 15 are arranged on the second clamping plate 14, and the first chucks 15 and the corresponding second chucks 16 form a welding strip clamping assembly.
The first clamping plate 13 and the second clamping plate 14 are configured to be capable of relative movement to drive the first chuck 15 and the second chuck 16 of each welding strip clamping assembly to cooperatively clamp a pair of first welding strips and second welding strips, so that the first welding strips are horizontally overlapped with the corresponding second welding strips.
It can be seen that, by the above arrangement of the welding strip clamping mechanism 1, the welding strip clamping mechanism 1 can perform synchronous clamping and overlapping of the pairs of the first welding strips and the second welding strips, so that the welding mechanism 2 can continuously or synchronously perform welding of the pairs of the first welding strips and the second welding strips, thereby improving welding efficiency; the gluing mechanism 3 can continuously or synchronously perform the gluing of the pairs of the first welding strips and the second welding strips so as to improve the gluing efficiency.
When the welding strip connecting device is applied to repairing a battery string, the number of welding strip clamping components in the welding strip clamping mechanism 1 can be optionally set to be equal to the number of the first welding strips cut off on the adjacent battery piece or the number of the second welding strips on the replaced battery piece. In this way, the welding strip clamping mechanism 1 can perform simultaneous clamping of all the first welding strips on the adjacent battery pieces and all the second welding strips on the replacement battery pieces, thereby further improving repair efficiency.
With continued reference to fig. 3 and 4, the strap gripping mechanism 1 may optionally further include a first translational drive mechanism 17 and a second translational drive mechanism 18 disposed on the mounting bracket 12, wherein: the first clamping plate 13 is slidably connected to the mounting bracket 12 and to the driving end of the first translational drive mechanism 17, and the second clamping plate 14 is slidably connected to the mounting bracket 12 and to the driving end of the second translational drive mechanism 18. The first clamping plate 13 and the second clamping plate 14 are driven by the first translation driving mechanism 17 and the second translation driving mechanism 18 to move relatively, so as to drive each first chuck 15 and each corresponding second chuck 16 to clamp or open, and clamp or release the welding belt.
Alternatively, the welding mechanism 2 may be an electromagnetic welding mechanism or a laser welding mechanism. The electromagnetic welding mechanism is in direct contact with the first welding strip and the second welding strip and is electrified to the first welding strip and the second welding strip, so that the first welding strip and the second welding strip are welded together after heating, and the welding effect can be guaranteed. The laser welding mechanism irradiates the first welding strip and the second welding strip to heat the first welding strip and the second welding strip in a non-contact mode, so that the first welding strip and the second welding strip are welded together after heating, and the welding efficiency can be improved.
As shown in fig. 3 and 6, the welding mechanism 2 is an electromagnetic welding mechanism, which includes a mounting plate 21, a lifting drive portion 22, a lifting plate 23, and a plurality of electrode groups, wherein:
the mounting plate 21 is mounted on the mounting bracket 12 of the clamping mechanism 1 such that the welding mechanism 2 can move synchronously with the welding strip clamping assembly of the clamping mechanism 1. The lifting driving part 22 is arranged on the mounting plate 21, the lifting plate 23 is slidably connected on the mounting plate 21 and connected with the driving end of the lifting driving part 22, and the lifting driving part 22 is used for driving the lifting plate 23 to lift.
The electrode groups are arranged at the bottom of the lifting plate 23 at intervals side by side and correspond to the welding strip clamping assemblies of the clamping mechanism 1 one by one, and each electrode group comprises a first electrode 24 and a second electrode 25 which are opposite in polarity.
In the initial state, the lifting plate 23 is in an initial high position, and each electrode group is positioned above the corresponding welding strip clamping assembly. When each welding strip clamping assembly of the clamping mechanism 1 completes the clamping lap joint of the first welding strip and the second welding strip, the lifting driving part 22 drives the lifting plate 23 to descend to the low position, so that the first electrode 24 in each electrode group is in pressure connection with the first welding strip clamped by the corresponding welding strip clamping assembly, and the second electrode 25 is in pressure connection with the second welding strip clamped by the corresponding welding strip clamping assembly.
Next, each electrode group simultaneously energizes the crimped first and second bonding tapes, thereby simultaneously welding the pairs of first and second bonding tapes together.
As known to those skilled in the art, when two welding strips are clamped by the welding strip clamping mechanism, the clamped two welding strips are easy to be in an up-and-down lap joint state, and after lap joint is completed according to the up-and-down lap joint state, the thickness of the lap joint part is increased, and battery piece cracking is easy to be caused during subsequent component lamination.
In order to solve this problem, alternatively, the first chuck 15 is floatably connected to the first holding plate 13 via a first floating connection, and the second chuck 16 is floatably connected to the second holding plate 14 via a second floating connection. The method is as follows:
when the movable module 11 drives the mounting bracket 12 to descend, the first clamping head 15 and the second clamping head 16 are respectively pressed on the first welding strip and the second welding strip.
Then, the first clamping plate 13 and the second clamping plate 14 move relatively to drive the first chuck 15 and the second chuck 16 to clamp so as to clamp the pressed first welding strip and the pressed second welding strip, thereby ensuring that the first welding strip and the second welding strip are horizontally overlapped together.
Optionally, the first floating connector and the second floating connector are identical in structure. As shown in fig. 5, taking the first floating connection 19 as an example, it includes a lifting slide rail 191, a sliding mounting plate 192, and a spring 193, wherein: the lifting slide rail 191 is arranged on the first clamping plate 13 along the vertical direction, the sliding mounting plate 192 is connected to the lifting slide rail 191 in a sliding manner and can slide up and down along the lifting slide rail 191, the first clamping head 15 is fixedly mounted at the lower end of the sliding mounting plate 192, and the spring 193 is pressed between the upper end of the sliding mounting plate 192 and the first clamping plate 13.
When the movable module 11 drives the mounting bracket 12 to descend, under the self-adaptive adjustment of the springs 193, each of the first clamping head 15 and the second clamping head 16 can be ensured to elastically press the first welding strip and the second welding strip onto the battery piece.
Because the first clamping head 15 and the second clamping head 16 elastically compress the welding strips, when the first clamping plate 13 and the second clamping plate 14 relatively move, the first clamping head 15 and the second clamping head 16 can limit the movement of the first welding strip and the second welding strip in the height direction, so that the first welding strip and the second welding strip are horizontally lapped together at last.
Taking the first floating connection 19 as an example, optionally, the first floating connection 19 further includes a guide rod 194, a lower end of the guide rod 194 is connected to an upper end of the sliding mounting plate 192, and the guide rod 194 penetrates into the first clamping plate 13 upwards and can move up and down relative to the first clamping plate 13. The spring 193 is sleeved on the guide rod, the lower end of the spring 193 is abutted against the upper end of the sliding mounting plate 192, and the upper end of the spring 193 is abutted against the first clamping plate 13. By providing the guide rod 194, on the one hand, the spring 193 can be stably press-fitted between the upper end of the sliding mounting plate 192 and the first clamping plate 13, and on the other hand, sliding guide of the sliding mounting plate 192 is realized, thereby ensuring the floating stability of the first clamping head 15 and preventing the first clamping head 15 from deviating.
As shown in fig. 7 and 8, alternatively, the bottom surfaces of the clamping ends of the first chuck 15 and the second chuck 16 are stepped surfaces. The step surface includes a first bottom surface 151, a second bottom surface 152, and a side elevation 153, wherein the second bottom surface 152 is lower than the first bottom surface 151, and the side elevation 153 is located between the first bottom surface 151 and the second bottom surface 152. The side elevation 153 of the first chuck 15 and the side elevation 153 of the second chuck 16 are opposite, and the side elevation 153 of the first chuck 15 and the side elevation 153 of the second chuck 16 are moved toward or away from each other with the relative movement of the first clamping plate 13 and the second clamping plate 14.
Referring to fig. 8 in combination, the first and second chucks 15 and 16 clamp the first and second bonding tapes 100 and 200 as follows:
the moving module 11 drives the mounting bracket 12 to descend, and the first bottom surface 151 of the first chuck 15 and the first bottom surface 151 of the second chuck 16 are pressed on the first solder strip 100 and the second solder strip 200 respectively.
Then, when the first clamping plate 13 and the second clamping plate 14 move relatively, the side elevation 153 of the first chuck 15 and the side elevation 153 of the second chuck 16 approach each other, and finally clamp the pressed first solder strip 100 and second solder strip 200, so that the first solder strip 100 and second solder strip 200 overlap horizontally.
As described above, the welding mechanism 2 may be an electromagnetic welding mechanism or a laser welding mechanism.
When the welding mechanism 2 is an electromagnetic welding mechanism, as shown in fig. 7, optionally, a first avoiding hole 154 is provided on the first chuck 15, and the first avoiding hole 154 is close to the clamping end of the first chuck 15; the second chuck 16 is provided with a second avoidance hole 161, and the second avoidance hole 161 is close to the clamping end of the second chuck 16.
When the first clip 15 and the second clip 16 hold the pressed first and second bonding tapes 100 and 200, the first bonding tape 100 is exposed to the first escape hole 154 and the second bonding tape 200 is exposed to the second escape hole 161.
In this way, the first electrode 24 and the second electrode 25 in each electrode group of the electromagnetic welding mechanism can pass through the first avoiding hole 154 and the second avoiding hole 161, respectively, and finally press-contact the first welding strip 100 and the second welding strip 200, respectively, so as to energize the first welding strip 100 and the second welding strip 200 which are lapped together.
When the welding mechanism 2 is a laser welding mechanism, as shown in fig. 9, a third avoidance hole 155 is provided at the clamping end of the first chuck 15, and a fourth avoidance hole 162 is provided at the clamping end of the second chuck 16.
When the first and second bonding tapes 100 and 200 are held by the side elevation of the first chuck 15 and the side elevation of the second chuck 16, overlapping portions of the first and second bonding tapes 100 and 200 are exposed in the area surrounded by the third and fourth escape holes 155 and 162.
Welding laser emitted from the laser welding mechanism can pass through the third avoidance holes 155 and the fourth avoidance holes 162 and irradiate the first welding strip 100 and the second welding strip 200 which are horizontally overlapped, so as to implement laser welding of the first welding strip 100 and the second welding strip 200. In addition, the glue applicator head 32 of the bonding mechanism 3 may also pass through the third relief hole 155 and the fourth relief hole 162 to perform a glue application operation on the first and second bonding strips 100 and 200 that overlap horizontally.
The invention also provides a battery string repairing method, which comprises the following steps:
s1, cutting off welding strips between a defective battery piece and an adjacent battery piece in a battery string to be repaired, wherein the adjacent battery piece is a battery piece adjacent to the defective battery piece, and the cut welding strip on the adjacent battery piece is a first welding strip.
S2, taking down the defective battery piece, placing the replacement battery piece at an empty position after the defective battery piece is taken away, and arranging a second welding strip on the replacement battery piece.
The second welding strip on the replaced battery piece is identical to the welding strip on the removed defective battery piece in position and arrangement condition on the battery piece. That is, the replacement battery piece differs from the removed defective battery piece only in the presence or absence of a defect in the battery piece itself.
S3, clamping the first welding strip and the second welding strip to enable the first welding strip and the second welding strip to be in horizontal lap joint.
S4, welding the lap joint part of the first welding strip and the second welding strip, and adhering the lap joint part of the first welding strip and the second welding strip, wherein: the welding is performed after the adhesive bonding or before the adhesive bonding.
The above steps S3 and S4 may be implemented by the solder strip connecting device provided in any of the foregoing embodiments, that is, the first solder strip and the second solder strip are clamped by the solder strip clamping mechanism 1 of the solder strip connecting device so that the first solder strip and the second solder strip overlap horizontally; welding the first welding strip and the second welding strip which are horizontally overlapped by a welding mechanism 2 of the welding strip connecting device; the first welding strip and the second welding strip which are horizontally overlapped are adhered by an adhering mechanism 3 of the welding strip connecting device.
The battery string is repaired by adopting the battery string repairing method provided by the invention, and after the second welding strip on the replaced battery piece and the sheared first welding strip on the adjacent battery piece are horizontally lapped together, the second welding strip and the first welding strip are welded and glued to realize double connection.
In the subsequent use process of the photovoltaic module formed by the repaired battery string, even if the welding flux at the connecting position of the second welding strip and the first welding strip reaches a molten or semi-molten state, the second welding strip and the first welding strip are bonded by the sizing material, so that the second welding strip and the first welding strip cannot be separated from each other due to welding failure, and the normal operation of the battery module is ensured.
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 (13)

1. The utility model provides a welding strip connecting device, its characterized in that, welding strip connecting device is used for connecting first welding strip and second welding strip, welding strip connecting device includes welding strip clamping mechanism, welding mechanism and bonding mechanism, wherein:
the welding strip clamping mechanism is used for clamping the first welding strip and the second welding strip so that the first welding strip and the second welding strip are overlapped;
the welding mechanism is used for welding the first welding strip and the second welding strip which are overlapped together;
the bonding mechanism is used for bonding the first welding strip and the second welding strip which are overlapped together.
2. The solder strip connection apparatus of claim 1, wherein the bonding mechanism comprises a drive mechanism and a glue applicator head, wherein:
the glue applying head is connected to the driving end of the driving mechanism, and the driving mechanism is used for driving the glue applying head to move for glue applying;
the applicator head is used for applying sizing material to the first welding strip and the second welding strip which are lapped together;
the sizing material is self-gel, solidified glue or adhesive tape.
3. The solder strip connection device of claim 2, wherein the glue is a curing glue, the solder strip connection device further comprising a curing light source mounted on the drive end of the drive mechanism in conjunction with the glue applicator head; or the driving mechanism comprises a first driving mechanism and a second driving mechanism, the glue applying head is connected to the driving end of the first driving mechanism, and the curing light source is connected to the driving end of the second driving mechanism;
the curing light source is used for curing the sizing material applied to the first welding strip and the second welding strip so as to bond the first welding strip and the second welding strip;
the curing glue is thermosetting glue, and the curing light source is an infrared light source; or the curing glue is UV glue, and the curing light source is a UV light source.
4. The solder strip connection apparatus of claim 1, wherein the solder strip clamping mechanism comprises a moving module, a mounting bracket, a first clamping plate, and a second clamping plate, wherein:
the mounting bracket is connected to the driving end of the movable module, and the movable module is at least used for driving the mounting bracket to lift;
the first clamping plate and the second clamping plate are oppositely arranged on the mounting bracket, a plurality of first chucks are arranged on the first clamping plate, a plurality of second chucks which are in one-to-one correspondence with the first chucks are arranged on the second clamping plate, and the first chucks and the corresponding second chucks form a welding strip clamping assembly;
the first clamping plate and the second clamping plate are configured to be capable of moving relatively so as to drive the first clamping head and the second clamping head in each welding strip clamping assembly to clamp one first welding strip and one second welding strip to be overlapped in a matched mode, and the first welding strip and the second welding strip are overlapped together.
5. The solder strip connection apparatus of claim 4, wherein the solder strip clamping mechanism further comprises a first translational drive mechanism and a second translational drive mechanism disposed on the mounting bracket, wherein:
the first clamping plate is connected to the mounting bracket in a sliding manner and is connected with the driving end of the first translation driving mechanism, and the second clamping plate is connected to the mounting bracket in a sliding manner and is connected with the driving end of the second translation driving mechanism;
the first clamping plate and the second clamping plate are driven by the first translation driving mechanism and the second translation driving mechanism to move relatively.
6. The strap connecting apparatus of claim 4 wherein the welding mechanism is an electromagnetic welding mechanism or a laser welding mechanism.
7. The solder strip connection apparatus of claim 6, wherein the electromagnetic welding mechanism comprises a mounting plate, a lift drive, a lift plate, and a plurality of electrode sets, wherein:
the lifting driving part is arranged on the mounting plate, the lifting plate is connected to the mounting plate in a sliding manner and is connected with the driving end of the lifting driving part, and the lifting driving part is used for driving the lifting plate to lift;
the electrode groups are arranged at the bottom of the lifting plate at intervals side by side and correspond to the welding strip clamping assemblies one by one, and each electrode group comprises a first electrode and a second electrode which are opposite in polarity;
when the lifting driving part drives the lifting plate to descend, the first electrode in each electrode group is used for being in press connection with the first welding strip clamped by the corresponding welding strip clamping assembly, and the second electrode in each electrode group is used for being in press connection with the second welding strip clamped by the corresponding welding strip clamping assembly.
8. The ribbon bond assembly of claim 4 wherein the first clip is floatably connected to the first clamping plate via a first floating connection and the second clip is floatably connected to the second clamping plate via a second floating connection;
when the moving module drives the mounting bracket to descend, the first chuck and the second chuck are respectively pressed on the first welding strip and the second welding strip;
when the first clamping plate and the second clamping plate move relatively, the first clamping head and the second clamping head clamp the first welding strip and the second welding strip which are pressed tightly, so that the first welding strip and the second welding strip are horizontally lapped together.
9. The solder strip connection apparatus of claim 8, wherein the first floating connection and the second floating connection are identical in structure, the first floating connection comprising a lifting slide rail, a sliding mounting plate, and a spring, wherein:
the lifting slide rail is arranged on the first clamping plate along the vertical direction, the sliding mounting plate is connected to the lifting slide rail in a sliding manner and can slide up and down along the lifting slide rail, the first clamping head is fixedly mounted at the lower end of the sliding mounting plate, and the spring is arranged between the upper end of the sliding mounting plate and the first clamping plate in a pressing manner.
10. The solder strip connection device of claim 4, in which,
the bottom surfaces of the clamping ends of the first clamping head and the second clamping head are stepped surfaces, the stepped surfaces comprise a first bottom surface, a second bottom surface and side elevation, the second bottom surface is lower than the first bottom surface, and the side elevation is located between the first bottom surface and the second bottom surface;
the side elevation of the first chuck is opposite to the side elevation of the second chuck, and the side elevation of the first chuck and the side elevation of the second chuck are close to or far away from each other along with the relative movement of the first clamping plate and the second clamping plate;
when the moving module drives the mounting bracket to descend, the first bottom surface of the first chuck and the first bottom surface of the second chuck are respectively pressed on the first welding strip and the second welding strip;
when the first clamping plate and the second clamping plate move relatively, the side elevation of the first chuck and the side elevation of the second chuck clamp the pressed first welding strip and the second welding strip, so that the first welding strip and the second welding strip are in horizontal lap joint.
11. The solder strip connection apparatus of claim 10, wherein:
the first chuck is provided with a first avoiding hole, the first avoiding hole is close to the clamping end of the first chuck, the second chuck is provided with a second avoiding hole, and the second avoiding hole is close to the clamping end of the second chuck;
when the side elevation of the first chuck and the side elevation of the second chuck clamp the first welding strip and the second welding strip which are pressed, the first welding strip is exposed at the first avoidance hole, and the second welding strip is exposed at the second avoidance hole.
12. The solder strip connection apparatus of claim 10, wherein:
the clamping end of the first clamping head is provided with a third avoiding hole, and the clamping end of the second clamping head is provided with a fourth avoiding hole;
when the side elevation of the first chuck and the side elevation of the second chuck clamp the pressed first welding strip and the second welding strip, the lap joint part of the first welding strip and the second welding strip is exposed by the third avoidance hole and the fourth avoidance hole.
13. A battery string repairing method is characterized in that: the battery string repairing method comprises the following steps:
cutting off welding strips between a defective battery piece and an adjacent battery piece in a battery string to be repaired, wherein the adjacent battery piece is a battery piece adjacent to the defective battery piece, and the cut-off welding strip on the adjacent battery piece is a first welding strip;
taking down the defective battery piece, and placing a replacement battery piece at an empty position after the defective battery piece is taken away, wherein the replacement battery piece is provided with a second welding strip;
clamping the first welding strip and the second welding strip to enable the first welding strip to be in horizontal lap joint with the second welding strip;
welding the lap joint part of the first welding strip and the second welding strip, and adhering the lap joint part of the first welding strip and the second welding strip, wherein: the welding is performed after the adhesive bonding or before the adhesive bonding.
CN202310094792.2A 2023-02-10 2023-02-10 Welding strip connecting device and battery string repairing method Pending CN116100220A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310094792.2A CN116100220A (en) 2023-02-10 2023-02-10 Welding strip connecting device and battery string repairing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310094792.2A CN116100220A (en) 2023-02-10 2023-02-10 Welding strip connecting device and battery string repairing method

Publications (1)

Publication Number Publication Date
CN116100220A true CN116100220A (en) 2023-05-12

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310094792.2A Pending CN116100220A (en) 2023-02-10 2023-02-10 Welding strip connecting device and battery string repairing method

Country Status (1)

Country Link
CN (1) CN116100220A (en)

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