CN107464909A - The welding method of battery modules - Google Patents

The welding method of battery modules Download PDF

Info

Publication number
CN107464909A
CN107464909A CN201710648460.9A CN201710648460A CN107464909A CN 107464909 A CN107464909 A CN 107464909A CN 201710648460 A CN201710648460 A CN 201710648460A CN 107464909 A CN107464909 A CN 107464909A
Authority
CN
China
Prior art keywords
battery modules
cylinder manifold
welding method
scheduled time
weld tabs
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
CN201710648460.9A
Other languages
Chinese (zh)
Inventor
伍伟东
夏先坤
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CN107464909A publication Critical patent/CN107464909A/en
Pending legal-status Critical Current

Links

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
    • B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K1/00—Soldering, e.g. brazing, or unsoldering
    • B23K1/0008—Soldering, e.g. brazing, or unsoldering specially adapted for particular articles or work
    • B23K1/0016—Brazing of electronic components
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/531—Electrode connections inside a battery casing
    • 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
    • B23K1/005—Soldering by means of radiant energy
    • B23K1/0056—Soldering by means of radiant energy soldering by means of beams, e.g. lasers, E.B.
    • 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
    • B23K3/06—Solder feeding devices; Solder melting pans
    • B23K3/0646—Solder baths
    • B23K3/0692—Solder baths with intermediary means for bringing solder on workpiece, e.g. rollers
    • 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
    • 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
    • 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
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/02—Carriages for supporting the welding or cutting element
    • B23K37/0252—Steering means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/04—Construction or manufacture in general
    • H01M10/0404—Machines for assembling batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/528—Fixed electrical connections, i.e. not intended for disconnection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/36—Electric or electronic devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/36—Electric or electronic devices
    • B23K2101/38—Conductors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Manufacturing & Machinery (AREA)
  • Connection Of Batteries Or Terminals (AREA)
  • Battery Mounting, Suspending (AREA)
  • Fuel Cell (AREA)

Abstract

The present invention provides a kind of welding method of battery modules, and the welding method of the battery modules comprises the following steps：Some cells are loaded into support；Tin material is coated with to the both positive and negative polarity of some cells；Cylinder manifold is fixed on the support to form battery modules；The battery modules are positioned on the AC welder including two capillaries and cause the cylinder manifold towards the capillary；The capillary movement with the weld tabs on the cylinder manifold until abutting against and continuing for first scheduled time；The capillary starts to discharge and continued for second scheduled time and melted the tin material with heating the weld tabs on the cylinder manifold after first scheduled time；By capillary movement described in the 3rd scheduled time and away from the weld tabs on the cylinder manifold after the completion of the capillary electric discharge.The welding method of battery modules provided by the invention can realize automatic welding, the shortcomings that improving production efficiency and overcome present in electric resistance welding and manual soldering.

Description

The welding method of battery modules
【Technical field】
The present invention relates to cell package welding technology field, more particularly to a kind of welding method of battery modules.
【Background technology】
At present in battery manufacture encapsulation process, for example, the work that the both positive and negative polarity of cylinder manifold and cell is welded In skill, generally use electric resistance welding or manual soldering are realized.Wherein, electric resistance welding is after cylinder manifold is combined with the both positive and negative polarity of battery Pressure is applied by electrode, welded using electric current by resistance heat caused by the contact surface and adjacent domain of joint, it is deposited Solder joint area is small, conductive area is small, conductance is low, pad tension intensity is small, sealing-off, dry joint and rosin joint rate it is high lack Point.In addition, disassembling difficulty during follow-up echelon utilizes using the battery modules of electric resistance welding, need to polish again after disassembling, and Polishing will damage the antirust coat of battery, and then influence secondary welding firmness.
Manual soldering now more uses the solder manual welding of high temperature ferrochrome, it is present, and efficiency is low, the heat time can not be accurate The shortcomings of control.If in welding process, the heat time is long will to cause battery cause thermal damage.
In consideration of it, real be necessary to provide a kind of welding method of new battery modules to overcome drawbacks described above.
【The content of the invention】
It is an object of the invention to provide a kind of welding method of battery modules, the welding method of the battery modules can be real Existing automatic welding, the shortcomings that improving production efficiency and overcome present in electric resistance welding and manual soldering.
To achieve these goals, the present invention provides a kind of welding method of battery modules, comprises the following steps：
Some cells are loaded into support；
Tin material is coated with to the both positive and negative polarity of some cells；
Cylinder manifold is fixed to form battery modules on the support, and makes the tin material position in the cell Between both positive and negative polarity and the cylinder manifold；
The battery modules are positioned on the AC welder including two capillaries and cause the cylinder manifold towards institute State capillary；
The capillary movement with the weld tabs on the cylinder manifold until abutting against and continuing for first scheduled time；
The capillary starts to discharge and continued for second scheduled time to heat on the cylinder manifold after first scheduled time Weld tabs melts the tin material；
By capillary movement described in the 3rd scheduled time and away from the weldering on the cylinder manifold after the completion of the capillary electric discharge Piece.
The welding method of battery modules provided by the invention, automatic welding can be realized, improve production efficiency and gram The shortcomings that having taken present in electric resistance welding and manual soldering.In addition, the solder joint after being welded by AC welder will not destroy list The coating of body battery surface, and then the resistant to rust ability of cell is not interfered with, and also the tin plating effect of generation can improve solder joint Resistant to rust ability.In addition, with the cell and cylinder manifold of soldering, by the melting temperature for being warmed to tin material, so that it may Easily to realize that cell separates with disassembling for cylinder manifold, secondary welding is unaffected after separation.
【Brief description of the drawings】
Fig. 1 is the flow chart of the welding method of battery modules provided by the invention.
Fig. 2 is the perspective exploded view of battery modules.
Fig. 3 is that the cell of battery modules is coated with the side view explosive view after tin cream.
Fig. 4 is the stereogram of AC welder.
Fig. 5 is the partial enlarged drawing at A in Fig. 4.
【Embodiment】
In order that the purpose of the present invention, technical scheme and advantageous effects become apparent from understanding, below in conjunction with accompanying drawing and Embodiment, the present invention will be described in further detail.It should be appreciated that the specific implementation described in this specification Mode is not intended to limit the present invention just for the sake of explaining the present invention.
Referring to Fig. 1, it is a kind of flow chart of the welding method of battery modules provided by the invention.It should illustrate It is that method of the invention is not limited to the order of following step, and in other embodiments, method of the invention can be wrapped only The which part of step as described below is included, or part steps therein can be deleted.Battery modules provided by the present invention Welding method comprise the following steps：
Step S01, some cells are loaded into support；
Step S02, tin material is coated with to the both positive and negative polarity of some cells；
Step S03, cylinder manifold is fixed to form battery modules on the support, and makes the tin material position in described Between cell both positive and negative polarity and the cylinder manifold；
Step S04, the battery modules are positioned on the AC welder including two capillaries and so that described conflux Plate face is to the capillary；
Step S05, the capillary movement with the weld tabs on the cylinder manifold until abutting against and continuing for first scheduled time；
Step S06, the capillary starts to discharge and continued for second scheduled time to heat the remittance after first scheduled time Weld tabs in flowing plate melts the tin material.
Step S07, capillary movement described in the 3rd scheduled time is passed through after the completion of the capillary electric discharge and is confluxed away from described Weld tabs on plate；
Whether step S08, machine detection solder joint are qualified.
It is described in detail below in conjunction with more than Fig. 2-5 pairs each steps.
Step S01, some cells 10 are loaded into support 20.
Specifically, referring to Fig. 2, battery modules 100 include some cells 10, a pair of relative supports 20 in interval and The relative cylinder manifold 30 in a pair of intervals.The support 20 is that insulating materials is made and including the opposite end of first end face 21 and second Face 22 and some through holes 201 through the first end face 21 and second end face 22 are offered, some cells 10 are located at one The through hole of a corresponding support 20 is worn respectively between the first end face 21 of the support 20 and both ends of each cell 10 In 201.In present embodiment, the cell 10 is cylindrical battery, the cross-sectional sizes of the through hole 201 and the monomer The cross-sectional sizes of battery 10 are corresponding, the cell 10 is worn just in the through hole 201.During assembling, if will Dry cell 10 is placed between the first end face 21 of a pair of brackets 20 and the both ends of the cell 10 are worn respectively In corresponding through hole 201.
Step S02, tin material 40 is coated with to the both positive and negative polarity of some cells 10.
Specifically, referring to Fig. 3, tin material 40 is applied to some cells 10 by point of use tin machine (not shown) Both ends, i.e. the positive pole and negative pole of cell 10.It is, of course, also possible to tin material 40 is applied to some monomer electricity with steel mesh The both ends in pond 10.Wherein, point tin machine can be from dynamic point tin machine or manual point tin machine.In present embodiment, the tin Material 40 is tin cream, and in other embodiments, the tin material 40 is the combination of powder pure tin/tin alloy and scaling powder.Tin cream, English Literary fame solder paste, grey lotion.Tin cream is accompanied by a kind of novel welding material that SMT arises at the historic moment, and is by scolding tin Powder, scaling powder and other surfactants, thixotropic agent etc. are mixed, the paste mixture of formation.It is mainly used in SMT rows The welding of the electronic components such as industry PCB surface resistance, electric capacity, IC.Further, the coated area of the tin material 40 is more than 4mm2, and then enable the conductive current-carrying of bonding area and holding structure intensity.
Step S03, cylinder manifold 30 is fixed on the support 20 to form battery modules 100, and makes the tin material 40 between the both positive and negative polarity and the cylinder manifold 30 of the cell 10.
Referring to Fig. 2, a pair of cylinder manifolds 30 are respectively in the second end face 22 of a pair of brackets 20.The cylinder manifold 30 include substrate 32, and some and support 20 one-to-one perforate 301 of through hole 201 is offered on the substrate 32.Institute Stating cylinder manifold 30 also includes being arranged on the weld tabs 302 being connected in the perforate 301 and with the edge of the perforate 301.This implementation In mode, the cylinder manifold 30 be made up of metallic plate punching press and the substrate 32 and the weld tabs 302 be same material one into Type.In other embodiments, the substrate 32 is made up with the weld tabs 302 of different metal material, and the weld tabs 302 is logical Cross welding manner to be welded on the substrate 32, for example, substrate 32 is made of copper, weld tabs 302 is made up of nickel or aluminium.The base The thickness of plate 32 is 0.15mm-5mm, and the thickness of the weld tabs 302 is 0.05mm between 5mm.The perforate 301 and the weldering The planform of piece 302 does not limit.During assembling, cylinder manifold 30 is separately positioned in the second end face 22 of support 20, makes tin Material 40 is between one end (positive pole or negative pole) of cell 10 and a corresponding weld tabs 302.It is understood that at it In his embodiment, tin material 40 can also be applied on the weld tabs 302 of cylinder manifold 30 and (substitute the step in present embodiment S02), then cylinder manifold 30 is separately positioned in the second end face 22 of support 20, and tin material 40 is located at cell 10 Between one end and a corresponding weld tabs 302.
Step S04, the battery modules 100 are positioned on the AC welder 900 including two capillaries 944 and caused The cylinder manifold 30 is towards the capillary 944.
Specifically, referring to Fig. 4, AC welder 900 includes pedestal 91, control box 92, fixed mount 93, welding mechanism 94 And slide unit 95.The control box 92 is arranged on the pedestal 91, for output control signal to control the welding mechanism 94 pairs of cylinder manifolds 30 and cell 10 weld.The fixed mount 93 is arranged on the pedestal 91 and close to institute Control box 92 is stated, for fixing the welding mechanism 94.Welding mechanism 94 includes actuator 941, the first sliding block 942, two the Two sliding blocks 943 and two capillaries 944.The actuator 941 is installed on the fixed mount 93, for driving described first to slide The relatively described actuator 941 of block 942 slides.In the present embodiment, the actuator 941 is cylinder.Described two second slide Block 943 is arranged side by side in the side of first sliding block 942 and close to the slide unit 95.Described two second sliding blocks 943 are in institute Stating can move under the drive of the first sliding block 942 to the direction close to or away from slide unit 95.Described two capillaries 944 are pacified respectively Loaded on described two second sliding blocks 943.Preferably, the capillary 944 is cylindrical and is made up of wolfram steel material, and then can Effectively limit and control heating temp.
Please stitch 9441, institute are additionally provided with conjunction with refering to Fig. 5, the capillary 944 close to one end of the cylinder manifold 30 State that stitch 9441 is cylindrical and a diameter of 0.5mm-15mm, in a preferred embodiment, the diameter of the stitch 9441 For 3mm, it will be understood that the diameter of the stitch 9441 can also adjust according to the thickness of the cylinder manifold 30；The stitch 9441 can also be strip or polygonized structure, also can be designed to other shapes according to real needs.Further, institute The spacing for stating two stitch 9441 is more than 0.1mm and is less than the maximum of the solder side of the negative or positive electrode of the cell 10 directly Footpath, in one embodiment, the spacing of two stitch 9441 are more than 0.1mm and are less than 50mm.The slide unit 95 includes can The slide plate 951 of the slip of opposite base 10 and the multiple keepers 952 being arranged on the slide plate 951.During welding, by battery mould Group 100 is positioned on slide plate 951, and is fixed by multiple keepers 952, and then causes described two capillaries 944 positioned at described One top of weld tabs 302 a, i.e. weld tabs 302 is corresponding with described two capillaries 944.In the present embodiment, it is described The blessing structure that multiple keepers 952 are cylinder or have cylinder to drive.
Step S05, the movement of capillary 944 with the weld tabs 302 on the cylinder manifold 30 up to abutting against and continuing first The scheduled time.
Specifically, the control box 92 sends the first control signal to control the actuator 941 to work and then drive institute State the first sliding block 942 and drive described two second sliding blocks 943 and described two capillaries 944 to close to the side of the cylinder manifold 30 Abutted against (precompressed) to the mobile stitch 9441 up to the capillary 944 and the weld tabs 302, and then cause the weld tabs 302 It is brought into close contact with the cell 10.In the present embodiment, first preset time is at least 0.2s, at one preferably Embodiment in, first scheduled time is 0.2s-0.5s, that is, squeeze time 0.2s-0.5s.
Step S06, the capillary 944 starts to discharge after first scheduled time and to continue for second scheduled time described to heat Weld tabs 302 on cylinder manifold 30 melts the tin material 40.
Specifically, the control box 92 also sends discharge signal to control the capillary 944 to discharge, and then heats weld tabs 302 make heat be transferred to tin material 40 by weld tabs 302, and then melt scolding tin material 40 and weld cylinder manifold 30 and cell 10 Connect.In the present embodiment, the power of the AC welder 900 is 1KW-20KW, and by mains-supplied.Certainly, the friendship Welding machine 900 can also be laser-beam welding machine.Second scheduled time is 0.2s-5s.It is appreciated that conflux according to described The thickness of plate 30 is different, and the continuous discharging time (second scheduled time) of the capillary 944 is also different, with the cylinder manifold 30 Thickness increase, the discharge time of the capillary 944 can also increase, can melt the tin material 40 completely.
Step S07, the capillary 944 pass through the movement of capillary 944 described in the 3rd scheduled time and away from institutes after the completion of discharging State the weld tabs 302 on cylinder manifold 30.
Specifically, when the capillary 944, which discharges, to be completed, i.e., when welding is completed, the capillary 944 may proceed to stop the 3rd The scheduled time and the 3rd scheduled time are at least 0.5s to ensure that the cooling of tin material 40 is completed, it is preferable that the 3rd is predetermined Time is 0.5s-3s.After the 3rd scheduled time, control box 92 sends the second control signal to control the work of actuator 941 Make and then drive first sliding block 942 to drive described two second sliding blocks 943 and described two capillaries 944 to away from described The direction movement of cylinder manifold 30, i.e., capillary 944, which resets, after temperature decline welding is completely firm lifts.
Whether step S08, machine detection solder joint are qualified.
Specifically, it is whether qualified to detect solder joint can also to include testing agency's (not shown) for the AC welder 900. For example, the weld point image that welded can be compared with pre-set image for AC welder 900, if being compared into pre-set image Work(, then judge that the solder joint is qualified.
The welding method of battery modules provided by the present invention, automatic welding can be realized, improve production efficiency and The shortcomings that overcoming present in electric resistance welding.In addition, the solder joint after being welded by AC welder 900 will not destroy cell 10 The coating on surface, and then the resistant to rust ability of cell 10 is not interfered with, and also the tin plating effect of generation can improve the anti-of solder joint Corrosion ability；Further, the direct weldering of the homogenous materials such as copper material, aluminium and the nickel plating housing of cell 10 can also be realized Connect.
Further, the cell 10 and cylinder manifold 30 welded with tin material 40, by the melting temperature for being warmed to tin material 40 Degree, it is possible to easily realize that cell 10 separates with disassembling for cylinder manifold 30, secondary welding is unaffected after separation.In addition, AC welder 900 is pressed on the upper surface of cylinder manifold 30 using two capillaries 944 arranged side by side, is produced after energization during instantaneous short circuit 150 DEG C~800 DEG C of high temperature to melt tin material 40, and then cylinder manifold 30 and cell 10 are welded together, due to confluxing The material melt temp of plate 30 and cell 10 is far above 1000 DEG C, so the material of cylinder manifold 30 and cell 10 will not It is damaged.
The present invention is not restricted to described in specification and embodiment, therefore for the personnel of familiar field Additional advantage and modification is easily achieved, therefore in the essence of the universal limited without departing substantially from claim and equivalency range In the case of refreshing and scope, the present invention is not limited to specific details, representational equipment and shown here as the diagram with description Example.

Claims (10)

  1. A kind of 1. welding method of battery modules, it is characterised in that：Comprise the following steps：
    Some cells are loaded into support；
    Tin material is coated with to the both positive and negative polarity of some cells；
    Cylinder manifold is fixed to form battery modules on the support, and makes the tin material position positive and negative in the cell Between pole and the cylinder manifold；
    The battery modules are positioned on the AC welder including two capillaries and cause the cylinder manifold towards the weldering Pin；
    The capillary movement with the weld tabs on the cylinder manifold until abutting against and continuing for first scheduled time；
    The capillary starts to discharge and continued for second scheduled time to heat the weld tabs on the cylinder manifold after first scheduled time The tin material is melted；
    By capillary movement described in the 3rd scheduled time and away from the weld tabs on the cylinder manifold after the completion of the capillary electric discharge.
  2. 2. the welding method of battery modules as claimed in claim 1, it is characterised in that：The welding method of the battery modules, " passed through for the 3rd scheduled time, the capillary movement and the remote cylinder manifold " it after the completion of the capillary electric discharge in the step Also comprise the following steps afterwards：
    Whether machine detection solder joint is qualified.
  3. 3. the welding method of battery modules as claimed in claim 1, it is characterised in that：The cylinder manifold includes substrate, described Offered on substrate and some cells some perforates correspondingly；The cylinder manifold also includes being arranged on described open The weld tabs being connected in hole and with the edge of the perforate；The cylinder manifold is made up of metallic plate punching press and the substrate and the weldering Piece is integrally formed for same material.
  4. 4. the welding method of battery modules as claimed in claim 3, it is characterised in that：The cylinder manifold is fixed on the support On, and the tin material position is between one end of the cell and a corresponding weld tabs；When described two capillaries move Until when being abutted against with the cylinder manifold, described two capillaries abut against with a weld tabs.
  5. 5. the welding method of battery modules as claimed in claim 1, it is characterised in that：The cylinder manifold includes substrate, described Offered on substrate and some cells some perforates correspondingly；The cylinder manifold also includes being arranged on described open The weld tabs being connected in hole and with the edge of the perforate；The substrate is made up from the weld tabs of different metal materials, and institute Weld tabs is stated to be welded on the substrate by welding manner.
  6. 6. the welding method of battery modules as claimed in claim 1, it is characterised in that：First scheduled time is at least 0.2s；Second scheduled time is 0.2s-5s；3rd scheduled time is at least 0.5s.
  7. 7. the welding method of battery modules as claimed in claim 1, it is characterised in that：Each capillary confluxes close to described One end of plate is additionally provided with stitch, a diameter of 0.5mm-15mm of the stitch.
  8. 8. the welding method of battery modules as claimed in claim 7, it is characterised in that：The spacing of described two stitch is more than 0.1mm and it is less than 50mm.
  9. 9. the welding method of battery modules as claimed in claim 1, it is characterised in that：" to some cells In the step of both positive and negative polarity coating tin material ", the area for the tin material that positive pole and the negative pole of the cell are coated with is more than 4mm2。
  10. 10. the welding method of battery modules as claimed in claim 1, it is characterised in that：The power of the AC welder is 1KW-20KW, and by mains-supplied.
CN201710648460.9A 2016-08-02 2017-08-01 The welding method of battery modules Pending CN107464909A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2016106241532 2016-08-02
CN201610624153.2A CN106001821A (en) 2016-08-02 2016-08-02 Battery PACK soldering welding process

Publications (1)

Publication Number Publication Date
CN107464909A true CN107464909A (en) 2017-12-12

Family

ID=57133816

Family Applications (6)

Application Number Title Priority Date Filing Date
CN201610624153.2A Pending CN106001821A (en) 2016-08-02 2016-08-02 Battery PACK soldering welding process
CN201710648928.4A Pending CN107363355A (en) 2016-08-02 2017-08-01 The welding method of battery modules
CN201720964949.2U Expired - Fee Related CN207021332U (en) 2016-08-02 2017-08-01 Using the battery modules of soldering
CN201710648460.9A Pending CN107464909A (en) 2016-08-02 2017-08-01 The welding method of battery modules
CN201710648944.3A Pending CN107262866A (en) 2016-08-02 2017-08-01 The welder of battery modules
CN201720953107.7U Expired - Fee Related CN206961919U (en) 2016-08-02 2017-08-01 Using the battery modules of soldering

Family Applications Before (3)

Application Number Title Priority Date Filing Date
CN201610624153.2A Pending CN106001821A (en) 2016-08-02 2016-08-02 Battery PACK soldering welding process
CN201710648928.4A Pending CN107363355A (en) 2016-08-02 2017-08-01 The welding method of battery modules
CN201720964949.2U Expired - Fee Related CN207021332U (en) 2016-08-02 2017-08-01 Using the battery modules of soldering

Family Applications After (2)

Application Number Title Priority Date Filing Date
CN201710648944.3A Pending CN107262866A (en) 2016-08-02 2017-08-01 The welder of battery modules
CN201720953107.7U Expired - Fee Related CN206961919U (en) 2016-08-02 2017-08-01 Using the battery modules of soldering

Country Status (1)

Country Link
CN (6) CN106001821A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108326408A (en) * 2018-04-19 2018-07-27 上海精虹新能源科技有限公司 4 Resistance Welding connection devices of dual power supply of compatible multiple power battery modules
CN111063855A (en) * 2018-10-17 2020-04-24 欣旺达电动汽车电池有限公司 Unilateral welding method for cylindrical battery cell

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106001821A (en) * 2016-08-02 2016-10-12 夏先坤 Battery PACK soldering welding process
CN107598372A (en) * 2017-09-18 2018-01-19 武汉力唯新能源科技有限公司 Cylindrical lithium battery lug draws method for laser welding
CN108422147A (en) * 2018-05-29 2018-08-21 北斗航天汽车（北京）有限公司 A kind of cylinder battery welding clamp
CN108714747B (en) * 2018-08-01 2024-08-27 江苏逸飞激光设备有限公司 Sealing nail welding detecting system
CN109037582A (en) * 2018-08-01 2018-12-18 武汉逸飞激光设备有限公司 Method of completing the square is bound in a kind of sealing
CN109014472B (en) * 2018-09-20 2024-01-19 深圳市金洲精工科技股份有限公司 Welding device and welding gap control method
CN109128610B (en) * 2018-10-29 2024-06-11 江苏逸飞激光设备有限公司 Welding mechanism
CN109623236B (en) * 2018-11-26 2020-10-02 浙江捷众科技股份有限公司 Be used for auto-parts welded high-efficient processing equipment
CN109277660A (en) * 2018-11-29 2019-01-29 深圳市大强大电子技术有限公司 A kind of electric capacity module tin immersion furnace assembly mold and its Batch assemblage welding method
CN110165132A (en) * 2019-05-20 2019-08-23 苏州安靠电源有限公司 Compound confluence piece for battery modules
CN110480113B (en) * 2019-08-05 2021-05-04 浙江耐迩合金科技有限公司 Silver contact automatic weld machine
CN211125719U (en) * 2019-09-20 2020-07-28 杭州乾代科技有限公司 Lithium ion battery module
CN112803123A (en) * 2019-10-29 2021-05-14 广东利元亨智能装备股份有限公司 Automatic production line for battery module welding section
CN111755755A (en) * 2020-07-07 2020-10-09 重庆力剑新能源科技有限公司 Lithium ion battery pack mounting apparatus and method of use thereof
CN112010022B (en) * 2020-08-14 2022-04-22 天能电池集团股份有限公司 Automatic feeding device of storage battery pole lug cast welding machine
TWI758907B (en) * 2020-10-16 2022-03-21 財團法人工業技術研究院 Carrying fixture
CN113070544A (en) * 2021-05-12 2021-07-06 杭州瞩日能源科技有限公司 Welding pin structure and welding method
CN113210847B (en) * 2021-05-20 2023-02-10 浙江创新激光设备有限公司 Battery case welding set
CN113441809B (en) * 2021-09-01 2021-11-26 深圳市泰科盛自动化系统有限公司 CCD counterpoint pulse hot pressure welding system
CN114083124B (en) * 2021-12-13 2024-05-03 合肥澎湃能源技术有限公司 Quick welding set of lithium cell
CN114211074A (en) * 2021-12-15 2022-03-22 盐城维信电子有限公司 Laser welding method for vehicle-mounted flexible board and nickel sheet
CN114799652B (en) * 2022-06-24 2024-02-02 四川泽丰锂能新能源科技有限公司 Lithium battery series-parallel connection welding processing apparatus for producing
CN116237606B (en) * 2023-05-10 2023-07-25 四川泽丰锂能新能源科技有限公司 Homopolar connection welding device and homopolar connection welding method for battery pack of electric car

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003242950A (en) * 2002-02-18 2003-08-29 Shin Kobe Electric Mach Co Ltd Battery pack
CN101034739A (en) * 2006-10-26 2007-09-12 首天恩管理有限公司 Conduction connector for the accumulator and accumulator
CN205141063U (en) * 2015-11-24 2016-04-06 北京闪信鼎中技术有限公司 Battery module
CN205200849U (en) * 2015-11-20 2016-05-04 郑州比克新能源汽车有限公司 Power battery module welding set
CN106784563A (en) * 2016-12-24 2017-05-31 东莞市卓安精机自动化设备有限公司 A kind of lithium battery module bus-bar attachment structure

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2482362A1 (en) * 2010-09-17 2012-08-01 Panasonic Corporation Battery block and battery module
CN102554437B (en) * 2012-01-31 2014-06-04 福州星云自动化技术有限公司 Gantry-type automatic spot welding system for battery pack
CN204277204U (en) * 2014-10-29 2015-04-22 沈鉴颖 Batteries of electric automobile bag Resistance Welding welding fixture
CN204966571U (en) * 2015-09-02 2016-01-13 广州橙行智动汽车科技有限公司 Battery connection piece structure and battery module
CN205166155U (en) * 2015-10-15 2016-04-20 惠州金源精密自动化设备有限公司 Compound spot welder that removes
CN205039192U (en) * 2015-10-19 2016-02-17 扬州峰威新能源科技有限公司 Novel battery module
CN205141042U (en) * 2015-11-04 2016-04-06 北京闪信鼎中技术有限公司 Battery module power consumption core support and battery module
CN205319222U (en) * 2015-12-28 2016-06-15 广州橙行智动汽车科技有限公司 Battery module with fusing protection function
CN106001821A (en) * 2016-08-02 2016-10-12 夏先坤 Battery PACK soldering welding process
CN106684303A (en) * 2017-01-17 2017-05-17 华霆（合肥）动力技术有限公司 Battery module and power supply apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003242950A (en) * 2002-02-18 2003-08-29 Shin Kobe Electric Mach Co Ltd Battery pack
CN101034739A (en) * 2006-10-26 2007-09-12 首天恩管理有限公司 Conduction connector for the accumulator and accumulator
CN205200849U (en) * 2015-11-20 2016-05-04 郑州比克新能源汽车有限公司 Power battery module welding set
CN205141063U (en) * 2015-11-24 2016-04-06 北京闪信鼎中技术有限公司 Battery module
CN106784563A (en) * 2016-12-24 2017-05-31 东莞市卓安精机自动化设备有限公司 A kind of lithium battery module bus-bar attachment structure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108326408A (en) * 2018-04-19 2018-07-27 上海精虹新能源科技有限公司 4 Resistance Welding connection devices of dual power supply of compatible multiple power battery modules
CN111063855A (en) * 2018-10-17 2020-04-24 欣旺达电动汽车电池有限公司 Unilateral welding method for cylindrical battery cell

Also Published As

Publication number Publication date
CN206961919U (en) 2018-02-02
CN107262866A (en) 2017-10-20
CN207021332U (en) 2018-02-16
CN106001821A (en) 2016-10-12
CN107363355A (en) 2017-11-21

Similar Documents

Publication Publication Date Title
CN107464909A (en) The welding method of battery modules
US7727672B2 (en) Battery, method of manufacturing the same, method of manufacturing weldment, and pedestal
US20160228974A1 (en) Electric resistance welding method and use thereof, and electrode welding head used
CN104002004B (en) A kind of thick sheet metal large area docking method for welding
JP4852784B2 (en) Battery and manufacturing method thereof
CN101234453A (en) Projection weld and method for creating the same
CN104289781A (en) Welding method of electric contact
US6864014B2 (en) Connecting structure of conductive connecting tab of battery
US20190363328A1 (en) Robust Reaction Metallurgical Joining
JPH03198975A (en) Soldering method
JP5034137B2 (en) WELDING MANUFACTURING METHOD, pedestal, and battery manufacturing method
JP4062168B2 (en) Terminal member structure
US2560678A (en) Method of welding
JP2008073728A (en) Joining method of metallic member
KR101272178B1 (en) Secondary battery and method for manufacturing the same
KR101124964B1 (en) Method for connecting between cathod lead or anode lead of secondary battery and external element
CN102658410A (en) Printed circuit board (PCB) and via hole element soldering method and PCB soldered by the method
CN106793466B (en) circuit board and mobile terminal
US20180281101A1 (en) Metal joining using ultrasonic and reaction metallurgical welding processes
US5883352A (en) Welding process
CN103157905A (en) Laser welding process of mobile phone motor end cover component conductive terminal copper piece and electric brush pins
CN209598417U (en) Supersonic welding socket part pedestal
JP2012222316A (en) Thermal compression bonding heater chip, and thermal compression bonding method
JP2006315043A (en) Reflow welding equipment
JPS59185582A (en) Welding method of temperature fuse soluble alloy and electrode

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20171212