CN116727791A - Welding method and welding equipment for battery piece - Google Patents

Welding method and welding equipment for battery piece Download PDF

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Publication number
CN116727791A
CN116727791A CN202310571417.2A CN202310571417A CN116727791A CN 116727791 A CN116727791 A CN 116727791A CN 202310571417 A CN202310571417 A CN 202310571417A CN 116727791 A CN116727791 A CN 116727791A
Authority
CN
China
Prior art keywords
carrier body
piece
battery
conductive connecting
operation surface
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310571417.2A
Other languages
Chinese (zh)
Inventor
卢嘉彬
朱亮
曹建伟
傅林坚
张俊
高红刚
郭伟强
张剑光
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Jingsheng Mechanical and Electrical Co Ltd
Original Assignee
Zhejiang Jingsheng Mechanical and Electrical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhejiang Jingsheng Mechanical and Electrical Co Ltd filed Critical Zhejiang Jingsheng Mechanical and Electrical Co Ltd
Priority to CN202310571417.2A priority Critical patent/CN116727791A/en
Publication of CN116727791A publication Critical patent/CN116727791A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • B23K1/00—Soldering, e.g. brazing, or unsoldering
    • B23K1/0008—Soldering, e.g. brazing, or unsoldering specially adapted for particular articles or work
    • 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
    • B23K1/00—Soldering, e.g. brazing, or unsoldering
    • B23K1/002—Soldering by means of induction heating
    • 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
    • B23K1/00—Soldering, e.g. brazing, or unsoldering
    • B23K1/20—Preliminary treatment of work or areas to be soldered, e.g. in respect of a galvanic coating
    • B23K1/203—Fluxing, i.e. applying flux onto surfaces
    • 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
    • B23K3/082—Flux dispensers; Apparatus for applying flux
    • 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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

The application discloses a welding method and welding equipment for a battery piece, which are used for welding the battery piece and a conductive connecting piece. The welding method comprises the following steps: at least one operation surface is arranged on a carrier body; heating the operation surface on the carrier body to maintain the operation surface at a preset temperature; adsorbing the battery piece on the operation surface; winding the conductive connecting piece on the battery piece; an adhesive member is disposed on the conductive connecting member such that the battery plate and the conductive connecting member are connected by the adhesive member. Through the arrangement, the connection steps of the battery piece and the conductive connecting piece can be simplified under the condition that the connection stability of the battery piece and the conductive connecting piece is met, the cold joint between the battery piece and the conductive connecting piece is reduced, and the possibility that the battery piece is deformed even hidden cracks occur due to heating is also reduced; and the influence of the residual adhesive piece on the connection of the subsequent battery piece and the conductive connecting piece can be avoided, so that the processing quality of the battery piece is improved.

Description

Welding method and welding equipment for battery piece
Technical Field
The application relates to the technical field of photovoltaics, in particular to a welding method and welding equipment for a battery piece.
Background
The prior mainstream technology of the electric connection piece for arranging the battery pieces comprises the following steps: pulling the conductive connecting piece, cutting the conductive connecting piece, transferring the conductive connecting piece, arranging and placing the conductive connecting piece, and welding the conductive connecting piece. Wherein, the conductive connecting piece is generally a welding strip. The problems with the above procedure are: firstly, the structure of the conductive connecting piece arrangement mechanism is complex, the expandability is poor, and the increasing demands of the arrangement quantity of the multi-wire conductive connecting pieces cannot be met; secondly, the conductive connecting piece is distributed aiming at the multi-grid battery piece, the current technology for distributing the conductive connecting piece needs a corresponding quantity of conductive connecting piece supply barrels, the conductive connecting piece is difficult to replace, and the occupied equipment space is large and the cost is high.
In addition, the connection mode of the battery piece and the conductive connecting piece is generally as follows: the surface of the conductive connecting piece is plated with a tin layer, soldering flux is immersed before the conductive connecting piece is contacted with the battery piece, and then the conductive connecting piece and the battery piece are fixed together in a heating mode. Wherein, the heating mode generally adopts infrared heating. However, the method needs to adopt soldering flux, and the soldering flux needs to be treated regularly, so that the production efficiency is affected, and the infrared heating mode can lead to poor heating uniformity, so that the problems of cold joint, large deformation of the battery piece, hidden cracking and the like are easily caused, and the processing quality of the battery piece is further reduced.
Disclosure of Invention
In order to solve the defects in the prior art, the application aims to provide a welding method and welding equipment for battery pieces, which can improve the processing quality of the battery pieces.
In order to achieve the above purpose, the present application adopts the following technical scheme:
a welding method for a battery cell, for welding the battery cell and a conductive connecting member, the welding method comprising: at least one operation surface is arranged on a carrier body; heating the operation surface on the carrier body to maintain the operation surface at a preset temperature; adsorbing the battery piece on the operation surface; winding the conductive connecting piece on the battery piece; an adhesive member is disposed on the conductive connecting member such that the battery plate and the conductive connecting member are connected by the adhesive member.
Further, the carrier body has a rotational degree of freedom, the carrier body is plate-shaped, and the front side and the back side of the carrier body are respectively provided with an operation surface; or the carrier body is cylindrical, a plurality of side surfaces are arranged on the carrier body, and each side surface is provided with an operation surface.
Further, the carrier body comprises a first state and a second state, and when the carrier body is in the first state, at least one operation surface is horizontally arranged; when the carrier body is in the second state, the carrier body is in a rotating state so as to switch the operation surfaces.
Further, the operation surface is provided as a curved surface or a plane surface.
Further, the operation surface is provided with an adsorption hole, and negative pressure is formed in the adsorption hole to enable the battery piece to be adsorbed and fixed on the operation surface.
Further, clamping pieces are arranged on two sides of the carrier body, and the head end and the tail end of the conductive connecting piece are fixed through the clamping pieces.
Further, a heating member for heating the adhesive member is provided in the carrier body.
Further, the heating member heats the carrier body so that the operation surface on the carrier body is maintained at a predetermined temperature.
Further, after the heating element heats the operation surface to a preset temperature, the battery piece is adsorbed on the operation surface.
In order to achieve the above purpose, the present application adopts the following technical scheme:
a welding apparatus, comprising: the first mechanism comprises an upper sheet assembly, a cutting assembly and a lower sheet assembly; a second mechanism comprising at least one carrier body having a degree of freedom of movement; the carrier body moves among the upper sheet assembly, the cutting assembly and the lower sheet assembly to form a first station, a second station and a third station, when the carrier body is positioned at the first station, the heating element heats the operation surface on the carrier body so as to keep the operation surface at a preset temperature, the upper sheet assembly firstly places the battery sheet on the operation surface and adsorbs and fixes the battery sheet on the operation surface through the adsorption hole, and after the conductive connecting piece is wound on the battery sheet, the upper sheet assembly places the adhesive piece on the conductive connecting piece so as to enable the battery sheet and the conductive connecting piece to be connected through the adhesive piece; when the carrier body is in the second station, the cutting assembly cuts the conductive connecting piece along the edge of the operation surface; when the carrier body is in the third station, the lower sheet assembly removes the battery sheet.
The welding method and the welding equipment for the battery piece can simplify the connection steps of the battery piece and the conductive connecting piece under the condition of meeting the connection stability of the battery piece and the conductive connecting piece, reduce the cold joint between the battery piece and the conductive connecting piece, and reduce the possibility of even hidden cracking of the battery piece due to thermal deformation; and the influence of the residual adhesive piece on the connection of the subsequent battery piece and the conductive connecting piece can be avoided, so that the processing quality of the battery piece is improved.
Drawings
Fig. 1 is a schematic structural view of a welding apparatus according to the present application.
Fig. 2 is a schematic structural view of the carrier body of the present application.
FIG. 3 is a flow chart of the welding method of the present application.
Fig. 4 is a schematic view of a part of the structure of the carrier body of the present application.
FIG. 5 is an enlarged view of a portion of the application at A in FIG. 4
Detailed Description
In order to make the present application better understood by those skilled in the art, the technical solutions in the specific embodiments of the present application will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present application.
As shown in fig. 1 and 2, a soldering apparatus 100 is used for connection between a battery cell 200 and a conductive connection member 300. The welding apparatus 100 includes an apparatus body 11, a first mechanism 12, and a second mechanism 13. The first mechanism 12 is at least partially disposed on the device body 11, and the first mechanism 12 is used for feeding the battery piece 200, feeding an adhesive member (not shown), cutting the conductive connecting member 300, and discharging the battery piece 200. Wherein, the conductive connection 300 may be a solder strip; the adhesive member may be formed of a material having adhesive properties after heating, such as a hot melt adhesive film. The second mechanism 13 is used for carrying the conductive connecting piece 300 and the battery piece 200, connecting the battery piece 200 with the conductive connecting piece 300, and sequentially completing the loading of the battery piece 200, the feeding of the adhesive piece, the cutting of the conductive connecting piece 300 and the unloading of the battery piece 200 through the first mechanism 12. For clarity of description of the technical solution of the present application, it is also defined that the front side, rear side, left side, right side, upper side, lower side as shown in fig. 1 represent the front side, rear side, left side, right side, upper side, lower side of the welding device 100.
As one implementation, first mechanism 12 includes an upper blade assembly 121, a cutting assembly 122, and a lower blade assembly (not shown). The upper sheet member 121, the cutting member 122, and the lower sheet member are sequentially arranged from front to back in the front-rear direction of the welding apparatus 100. Wherein the upper sheet assembly 121 is used for placing the battery sheet 200 and the adhesive member on the second mechanism 13; the cutting assembly 122 is used for cutting the conductive connecting piece 300; the lower plate assembly is used to remove the battery plate 200 from the second mechanism 13. With the above arrangement, upper sheet areas, cutting areas, and lower sheet areas are formed at the corresponding positions of the upper sheet member 121, the cutting member 122, and the lower sheet member. In one embodiment, the upper sheet assembly 121, the cutting assembly 122, and the lower sheet assembly are all positioned above the second mechanism 13 to facilitate corresponding operations on the second mechanism 13. It will be appreciated that the arrangement of the upper sheet assembly 121, the cutting assembly 122 and the lower sheet assembly may be adjusted according to the welding process of the battery sheet 200 and the conductive connecting member 300, and it is only required to form the upper sheet region, the cutting region and the lower sheet region at different positions.
Specifically, the second mechanism 13 includes at least one carrier body 131, where the carrier body 131 is used to carry the battery piece 200, the conductive connection member 300, and the adhesive member, and after the battery piece 200, the conductive connection member 300, and the adhesive member are placed on the carrier body 131, the adhesive member may be heated to make the adhesive member have an adhesive property, so that the battery piece 200 and the conductive connection member 300 are connected by the adhesive member. The carrier body 131 has a degree of freedom of movement such that the carrier body 131 moves between the upper sheet assembly 121, the cutting assembly 122, and the lower sheet assembly to form a first station, a second station, and a third station. Wherein the degree of freedom of movement of the carrier body 131 means that the carrier body 131 can move in the front-rear direction, the up-down direction, and/or the left-right direction of the welding apparatus 100, and more specifically, the carrier body 131 can move at least in the front-rear direction of the welding apparatus 100 so that the carrier body 131 can move among the first station, the second station, and the third station.
It will be appreciated that the second mechanism 13 may also comprise several carrier bodies 131, whereby the working efficiency of the soldering apparatus 100 may be improved. At this time, the carrier body 131 can move at least along at least one of the up-down direction and the left-right direction of the soldering apparatus 100 in addition to the forward-backward direction of the soldering apparatus 100, thereby preventing interference between the plurality of carrier bodies 131 and avoiding affecting the normal operation of the soldering apparatus 100.
In one embodiment, the upper sheet assembly 121 takes the form of a first manipulator to place the battery sheet 200 and the adhesive member on the carrier body 131, and further, an adsorption part is provided at an end of the first manipulator, and the adsorption part can adsorb the battery sheet 200 and the adhesive member by means of vacuum adsorption, thereby driving the battery sheet 200 and the adhesive member to move and be placed on the carrier body 131. The cutting assembly 122 may employ a laser or a high-speed motor and a grinding wheel, and the grinding wheel is driven by the laser or the high-speed motor to cut the conductive connecting member 300, so as to obtain the conductive connecting member 300 which is welded on the battery piece 200. The lower piece assembly adopts a second manipulator mode, and the battery piece 200 after being heated and welded is grabbed and lower piece. The laser cutting of the cutting assembly 122, the placement of the battery piece 200 and the adhesive piece of the first manipulator, and the placement of the battery piece 200 of the second manipulator all need to be matched with a vision system, so that a proper position adjustment can be made relative to the position of the adhesive piece or the battery piece 200, for example, the arrangement direction of the adhesive piece on the battery piece 200 can be adjusted by the first manipulator.
It will be appreciated that the first and second robots may be configured to be identical, i.e., the upper and lower assemblies 121, 121 may be configured to be identical. As an implementation manner, the upper sheet assembly 121 and the lower sheet assembly may be further configured as the same component, that is, the first station and the third station may be overlapped, when the battery sheet 200 needs to be cut, the carrier body 131 is moved from the second station to the first station, and the battery sheet 200 is cut by the first manipulator, so that the structure of the welding apparatus 100 is simplified, the structural compactness of the welding apparatus 100 is improved, and the cost of the welding apparatus 100 is saved.
As shown in fig. 3 and 4, the present application further includes a welding method for the battery cell 200 for welding the battery cell 200 and the conductive connection member 300. The welding method comprises the following steps:
s1, at least one operation surface 1311 is arranged on the carrier body 131;
s2, heating the operation surface 1311 on the carrier body 131 so that the operation surface 1311 maintains a preset temperature;
s3, adsorbing the battery piece 200 on the operation surface 1311;
s4, winding the conductive connecting piece 300 on the battery piece 200;
s5, arranging the adhesive piece on the conductive connecting piece 300 so that the battery piece 200 and the conductive connecting piece 300 are connected through the adhesive piece.
It should be noted that the steps illustrated in the above-described flow or flow diagrams of the figures may be performed in a computer system, such as a set of computer-executable instructions, and that, although a logical order is illustrated in the flow diagrams, in some cases, the steps illustrated or described may be performed in an order other than that illustrated herein. For example, step S1 may be omitted; step S2 may be performed after step S3; step S2 may be performed after step S4.
It can be appreciated that, in order to prevent the connection between the battery 200 and the conductive connecting member 300 from being affected by detachment of the adhesive member during the processing, the present application places the step S2 before the step S3, i.e. preheats the operation surface 1311, so as to reduce the cold joint between the battery 200 and the conductive connecting member 300, thereby improving the processing quality of the battery 200.
Through the arrangement, under the condition that the connection stability of the battery piece 200 and the conductive connecting piece 300 is met, the battery piece 200 and the conductive connecting piece 300 can be connected through the adhesive piece, so that the connection steps of the battery piece 200 and the conductive connecting piece 300 are simplified, an infrared welding process is omitted, the influence of soldering flux in the infrared welding process is avoided, the cold joint between the battery piece 200 and the conductive connecting piece 300 is reduced, the possibility that the battery piece 200 is even subjected to hidden cracking due to thermal deformation is reduced, and the service life of the battery piece 200 is prolonged. In addition, through the arrangement, the use of the soldering flux can be replaced, and the cleaning procedure of the soldering flux is saved; meanwhile, the tin plating process of the conductive connecting piece 300 can be reduced, so that the processing procedure of the conductive connecting piece 300 is simplified, the production efficiency of the battery piece 200 is improved, and the production cost of the battery piece 200 is reduced.
More specifically, the welding method of the present application can improve the connection reliability between the battery 200 and the conductive connection member 300 after the step S5 is placed after the step S3 and the step S4, and can more stably fix the battery 200 and the conductive connection member 300. In addition, since the adhesive member has an adhesive property after being heated, if the adhesive member is first placed on the operation surface 1311 of the carrier body 131, it is necessary to periodically clean the adhesive member remaining on the operation surface 1311, thereby affecting the production efficiency. Therefore, by the above arrangement, the cleaning process of the adhesive member can be saved to improve the production efficiency of the battery sheet 200; meanwhile, the influence of the residual adhesive piece on the connection of the subsequent battery piece 200 and the conductive connecting piece 300 can be avoided, so that the cold joint between the battery piece 200 and the conductive connecting piece 300 is reduced, and the processing quality of the battery piece 200 is improved.
As an implementation, the carrier body 131 has a degree of freedom of rotation, i.e., the carrier body 131 has one rotation axis, so that several operation surfaces 1311 can be provided on the carrier body 131. The two adjacent operation surfaces 1311 are connected with each other, a cutting belt extending along a preset straight line direction is formed at a connection position of the two adjacent operation surfaces 1311, and the cutting of the conductive connecting piece 300 can be performed along the cutting belt, wherein the operation surfaces 1311 can be arranged on a side surface of the carrier body 131, and each operation surface 1311 has the same size, area and shape, and the operation surface 1311 extends parallel to the axial direction of the carrier body 131 and along the axial direction of the carrier body 131; when the operation surface 1311 has a plurality of operation surfaces, the operation surfaces 1311 are distributed symmetrically about the rotation axis of the carrier body 131. With the above arrangement, the number of the battery pieces 200 carried by the carrier body 131 can be increased, that is, the plurality of battery pieces 200 are processed by the carrier body 131 having the plurality of operation surfaces 1311, thereby improving the working efficiency of the welding apparatus 100.
Specifically, the carrier body 131 has a plate shape, and the front and back surfaces of the carrier body 131 are provided with operation surfaces 1311, respectively. Alternatively, the carrier body 131 has a cylindrical shape, and the carrier body 131 is provided with a plurality of side surfaces, each of which is provided with the operation surface 1311. After the battery piece 200 is adsorbed on the operation surface 1311, the conductive connecting pieces 300 extend to two ends of the carrier body 131 in an equidistant thread shape along the axial direction of the carrier body 131, so that the surface of the battery piece 200 is uniformly provided with the conductive connecting pieces 300 which are parallel and equidistant at intervals, and the adhesive piece is placed on the conductive connecting pieces 300, so that the battery piece 200 and the conductive connecting pieces 300 are connected through the adhesive piece. With the above arrangement, when the carrier body 131 is rotated about the rotation axis, the respective operation surfaces 1311 are rotated with the carrier body 131, so that the operation surfaces 1311 can be switched to each other.
In the present embodiment, the carrier body 131 includes a first state and a second state, and when the carrier body 131 is in the first state, at least one operation surface 1311 is horizontally disposed, in the present application, the horizontally disposed operation surface 1311 is disposed perpendicular to the up-down direction of the welding apparatus 100; when the carrier body 131 is in the second state, the carrier body 131 is in a rotated state to switch between the operation surfaces 1311. Specifically, when the carrier body 131 is in the first state, the battery cell 200 on the at least one operation surface 1311 is in a state of being operated by the upper sheet assembly 121 or the lower sheet assembly. With the above arrangement, when the carrier body 131 is in the first state, the battery cell 200 on the at least one operation surface 1311 may be perpendicular to the up-down direction of the welding apparatus 100, so that the upper sheet assembly 121 or the lower sheet assembly above the carrier body 131 may perform a corresponding operation on the battery cell 200. Further, by switching between the operation surfaces 1311, the first mechanism 12 can be made to process the plurality of battery pieces 200, thereby improving the working efficiency of the welding apparatus 100.
It can be appreciated that by replacing the carrier body 131 or adjusting the number of coiled conductive connectors 300 on the carrier body 131, the spacing or number of the conductive connectors 300 on the carrier body 131 can be adjusted for different process requirements, thereby improving the adjustability and scalability of the soldering apparatus 100.
As an implementation manner, the carrier body 131 is provided with clamping members (not shown) at both sides, and both ends of the conductive connector 300 are fixed by the clamping members. Specifically, the left and right sides of the carrier body 131 are provided with clamping members in the left and right directions of the soldering apparatus 100, so that the conductive connecting member 300 can be wound on the battery cell 200 without being separated from the battery cell 200. In one embodiment, the clamping piece adopts a pneumatic clamp, and the clamping head is opened or closed through pneumatic control; it should be noted that the pneumatic clamp is disposed on a straight line formed between the operation surfaces 1311 and 1311, so that the conductive connectors 300 on each operation surface 1311 have equal lengths.
As one implementation, the operational face 1311 is configured as a curved or planar surface. When the operation surface 1311 is set to be a curved surface, the battery piece 200 is attached to the operation surface 1311 set to be a curved surface, the battery piece 200 is fixed to the operation surface 1311 in an adsorption manner, and the battery piece 200 is wound on the battery piece 200 through the conductive connecting piece 300, so that the shape of the battery piece 200 is primarily shaped, free warping cannot occur, namely, deformation of the battery piece 200 cannot be resisted through the curved surface setting of the operation surface 1311, and therefore, when the conductive connecting piece 300 and the battery piece 200 are welded, the battery piece 200 is prevented from being excessively heated to cause warping deformation or hidden cracking, and the service life of the battery piece 200 is prolonged. When the operation surface 1311 is set to be a plane, processing of the operation surface 1311 is facilitated, so that processing difficulty of the carrier body 131 is reduced to improve production efficiency of the carrier body 131.
As shown in fig. 4 and 5, specifically, the operation surface 1311 is provided with suction holes 1312, and negative pressure is generated in the suction holes 1312 to suck and fix the battery piece 200 to the operation surface 1311. Through the arrangement, the fixing between the battery piece 200 and the operation surface 1311 can be more stable through the adsorption holes 1312, so that stable connection of the conductive connecting piece 300 and the battery piece 200 after the adhesive piece is heated is facilitated, and connection stability between the battery piece 200 and the conductive connecting piece 300 is further facilitated to be improved, and processing quality of the battery piece 200 is improved.
As shown in fig. 2, more specifically, a heating member 1313 for heating the adhesive member is further provided in the carrier body 131. Wherein the heating member 1313 may be provided as a heating resistance wire or the like. Through the arrangement, the battery piece 200 and the conductive connecting piece 300 can be connected through the adhesive piece, so that the connection step of the battery piece 200 and the conductive connecting piece 300 is simplified, an infrared welding process is omitted, the influence of soldering flux in the infrared welding process is avoided, the cold joint between the battery piece 200 and the conductive connecting piece 300 is reduced, the possibility that the battery piece 200 is even hidden-split due to thermal deformation is reduced, and the processing quality of the battery piece 200 is improved.
In the present embodiment, the heating member 1313 is used to heat the carrier body 131 so that the operation surface 1311 on the carrier body 131 maintains a preset temperature, thereby enabling preliminary melting of the adhesive member after being placed on the conductive connecting member 300 to prevent the adhesive member from falling off the carrier body 131 when the carrier body 131 rotates. As a preferred implementation, after the heating member 1313 heats the operation surface 1311 to a preset temperature, the battery sheet 200 is adsorbed on the operation surface 1311.
As one implementation, when the carrier body 131 is at the first station, the heating element 1313 heats the operation surface 1311 on the carrier body 131 so that the operation surface 1311 maintains a preset temperature, the upper sheet assembly 121 firstly places the battery piece 200 on the operation surface 1311 and adsorbs and fixes the battery piece 200 to the operation surface 1311 through the adsorption hole 1312, and after the conductive connecting element 300 is wound on the battery piece 200, the upper sheet assembly 121 places the adhesive element on the conductive connecting element 300 so that the battery piece 200 and the conductive connecting element 300 are connected through the adhesive element; when the carrier body 131 is in the second station, the cutting assembly 122 cuts the conductive connector 300 along the edge of the operating face 1311; when the carrier body 131 is in the third station, the lower sheet assembly removes the battery sheet 200.
It will be understood that modifications and variations will be apparent to those skilled in the art from the foregoing description, and it is intended that all such modifications and variations be included within the scope of the following claims.

Claims (10)

1. A welding method for a battery cell for welding the battery cell and a conductive connecting member, the welding method comprising:
at least one operation surface is arranged on a carrier body;
heating the operation surface on the carrier body to maintain a preset temperature of the operation surface;
adsorbing the battery piece on the operation surface;
winding the conductive connecting piece on the battery piece;
an adhesive member is disposed on the conductive connecting member so that the battery plate and the conductive connecting member are connected through the adhesive member.
2. The welding method for battery cells according to claim 1, wherein the carrier body has a degree of freedom of rotation, the carrier body has a plate shape, and the operation faces are provided on front and back sides of the carrier body, respectively; or the carrier body is cylindrical, a plurality of side surfaces are arranged on the carrier body, and each side surface is provided with the operation surface.
3. The welding method for battery cells of claim 2 wherein the carrier body comprises a first state and a second state, at least one of the operative surfaces being in a horizontal arrangement when the carrier body is in the first state; when the carrier body is in the second state, the carrier body is in a rotating state so as to switch the operation surfaces.
4. A welding method for battery cells according to claim 1 or 2, wherein the operating surface is provided as a curved surface or a flat surface.
5. The welding method for battery cells according to claim 1 or 2, wherein the operation surface is provided with an adsorption hole, and the battery cells are adsorbed and fixed on the operation surface by forming a negative pressure into the adsorption hole.
6. The welding method for battery cells according to claim 1 or 2, wherein clamping members are provided on both sides of the carrier body, and both ends of the conductive connecting member are fixed by the clamping members.
7. A welding method for a battery cell according to claim 1 or 2, wherein a heating member for heating the adhesive member is further provided in the carrier body.
8. The welding method for battery cells according to claim 7, wherein the heating member heats the carrier body so that the operation surface on the carrier body maintains the preset temperature.
9. The welding method for battery cells according to claim 8, wherein the battery cells are adsorbed on the operation surface after the operation surface is heated to the preset temperature by the heating member.
10. A welding apparatus adapted to a welding method for a battery sheet according to any one of claims 1 to 9, characterized in that the welding apparatus comprises:
the first mechanism comprises an upper sheet assembly, a cutting assembly and a lower sheet assembly;
a second mechanism comprising at least one carrier body, the carrier body having a degree of freedom of movement;
the carrier body moves among the upper sheet assembly, the cutting assembly and the lower sheet assembly to form a first station, a second station and a third station, when the carrier body is positioned at the first station, the heating element heats the operation surface on the carrier body so as to keep the operation surface at a preset temperature, the upper sheet assembly firstly places a battery piece on the operation surface and adsorbs and fixes the battery piece on the operation surface through the adsorption hole, and after the conductive connecting piece is wound on the battery piece, the upper sheet assembly places an adhesive piece on the conductive connecting piece so as to connect the battery piece and the conductive connecting piece through the adhesive piece; the cutting assembly cuts the conductive connection along an edge of the operative surface when the carrier body is in the second station; and when the carrier body is in the third station, the lower piece assembly removes the battery piece.
CN202310571417.2A 2023-05-18 2023-05-18 Welding method and welding equipment for battery piece Pending CN116727791A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310571417.2A CN116727791A (en) 2023-05-18 2023-05-18 Welding method and welding equipment for battery piece

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310571417.2A CN116727791A (en) 2023-05-18 2023-05-18 Welding method and welding equipment for battery piece

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Publication Number Publication Date
CN116727791A true CN116727791A (en) 2023-09-12

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117219704A (en) * 2023-10-20 2023-12-12 杭州弘晟智能科技有限公司 Preparation method and arrangement method of photovoltaic cell and preparation equipment thereof
CN117438505A (en) * 2023-11-24 2024-01-23 浙江求是半导体设备有限公司 Preparation method and arrangement method of photovoltaic cell and preparation equipment thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117219704A (en) * 2023-10-20 2023-12-12 杭州弘晟智能科技有限公司 Preparation method and arrangement method of photovoltaic cell and preparation equipment thereof
CN117219704B (en) * 2023-10-20 2024-02-27 杭州弘晟智能科技有限公司 Preparation method and arrangement method of photovoltaic cell and preparation equipment thereof
CN117438505A (en) * 2023-11-24 2024-01-23 浙江求是半导体设备有限公司 Preparation method and arrangement method of photovoltaic cell and preparation equipment thereof
CN117438505B (en) * 2023-11-24 2024-03-22 浙江求是半导体设备有限公司 Preparation method and arrangement method of photovoltaic cell and preparation equipment thereof

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