CN109088036A - The preparation method of electrode terminal and the piece composite members that are flexible coupling - Google Patents
The preparation method of electrode terminal and the piece composite members that are flexible coupling Download PDFInfo
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- CN109088036A CN109088036A CN201810736035.XA CN201810736035A CN109088036A CN 109088036 A CN109088036 A CN 109088036A CN 201810736035 A CN201810736035 A CN 201810736035A CN 109088036 A CN109088036 A CN 109088036A
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- 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
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- 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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E60/10—Energy storage using batteries
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Abstract
The invention belongs to battery technology fields, and in particular to a kind of preparation method of electrode terminal and the piece composite members that are flexible coupling, comprising steps of passing through the electric current for externally supplying the strong alternation of coil；The piece surface that is flexible coupling at effective join domain can generate extremely strong inducing eddy-current；According to Lenz's law, effective join domain and the respective current direction in piece surface on the contrary, make of the being flexible coupling piece that is flexible coupling will receive extremely strong Lorentz force；Under Lorentz force effect, towards electrode terminal high-speed motion and with electrode terminal high velocity impact occurs for the piece that is flexible coupling；Piece be flexible coupling in collision process in conjunction with electrode terminal generation atom, to complete to connect, completes the preparation of electrode terminal with the piece composite members that are flexible coupling.By above-mentioned preparation method, an available low internal resistance, high-intensitive jointing promote the performance of single battery and battery modules and extend its service life；Very good solution simultaneously avoids the drawback that connection area caused by friction welding and laser welding is small, capacity usage ratio is low.
Description
Technical field
The invention belongs to battery technology fields, and in particular to a kind of preparation side of electrode terminal and the piece composite members that are flexible coupling
Method.
Background technique
Power battery is because of its electrode characteristic, and usually just extremely fine aluminium electrode terminal, cathode are Copper-Aluminum compound electrode terminal,
When being assembled into single battery, it is necessary first to which fine aluminium electrode terminal and the aluminium piece that is flexible coupling are welded into positive composite members, Copper-Aluminum compound
Electrode terminal and the copper piece that is flexible coupling are welded into cathode composite members, finally respectively by positive composite members, cathode composite members and battery core pole
Ear is welded.It is even whole that the reliability of electrode terminal and the piece composite members welding quality that is flexible coupling will directly influence single battery
The performance of a battery modules and service life.Electrode terminal and the piece composite members that are flexible coupling are as shown in Figure 1, include electrode terminal 1 and soft company
Contact pin 2.
Wherein, the copper of Copper-Aluminum compound electrode terminal, aluminium material connection belong to different metal materials connection, both metal materials
Expect that fusing point difference is larger, aluminium is 660.37 DEG C, and copper is 1083.4 DEG C, and the mode for not being available conventional melting welding is attached.
The currently used Copper-Aluminum compound electrode terminal and the method for the piece composite members that are flexible coupling of preparing is friction welding and laser
Welding is applied in combination, i.e., first carries out the production of Copper-Aluminum compound electrode terminal using Friction welding technique, uses laser welding technology afterwards
The piece that will be flexible coupling is welded with Copper-Aluminum compound electrode terminal, and final acquisition Copper-Aluminum compound electrode terminal and the piece that is flexible coupling are compound
Part.
As shown in Fig. 2, illustrate traditional electrode terminal product, the product is by Friction welding technique by 23 blank of copper 22 and aluminium
By high speed contact spin friction, a large amount of heat is generated, makes copper aluminium that melting welding occur.Finished product work is obtained by numerical control workshop afterwards
Part.In welding, copper aluminium joint face is also easy to produce unstable intermetallic phase, and the connector brittleness for welding out is big, is also easy to produce crackle,
Weld seam is also easy to produce stomata, and welding finished product inevitably will appear fracture, and time-consuming.
In summary defect present in combined welding method is as follows:
1, when using friction welding, because copper Al dissimilar materials fusing point difference is larger, and process medium temperature spends height, by
The difference of flowability that material self property difference generates easily leads to the generation of welding defect, common deficiency have surface grooves, overlap,
Surface peeling, bottom overlap etc..
2, same because copper Al dissimilar materials fusing point differs larger, in fusing and cooling procedure when using laser welding
It is heated unbalanced with condensation, it is easy to cause weld seam the defects of stomata, slag inclusion and rosin joint occur, so that weld strength is lower, separately
External laser weld energy is easy to control improper when higher, causes to occur using as the phenomenon that the lug and strap burn-through of base material,
Rework rate is very high.
3, there are a large amount of heat inputs in laser welding and friction welding process, cause to be also easy to produce at welding point unstable
Intermetallic phase, situations such as connector brittleness for welding out is big, is also easy to produce crackle, and welding finished product inevitably will appear fracture, take a lot of work
It is time-consuming；Meanwhile the resistance of this unstable intermetallic phase is higher than base material metal, during the subsequent applications of finished product, virtually
Increase energy loss.
4, when being processed using friction welding cooperation laser welding, single Copper-Aluminum compound electrode tip all can only once be carried out
The processing of son and the piece composite members that are flexible coupling, efficiency are lower.
In short, the electrode terminal difficulty of processing being made of copper aluminum metallic material is larger, and cost expenses are higher.Copper-Aluminum compound
Electrode terminal and it is flexible coupling piece composite members in process since above-mentioned technical reason will form the local defect for being difficult to eliminate.
Summary of the invention
(1) technical problems to be solved
The technical problem to be solved by the present invention is how (1) provides the system of a kind of electrode terminal and the piece composite members that are flexible coupling
Preparation Method thoroughly solves the problems such as contact resistance caused by friction welding and laser welding is big, and therefore and caused by energy
The drawbacks such as coefficient of losses is high, capacity usage ratio is low；(2) how the preparation side of a kind of electrode terminal and the piece composite members that are flexible coupling is provided
Method, it is desirable that base material does not need to melt in connection procedure, and avoid generating makes base material material property as melting welding because of high heat input
The phenomenon that variation, strength reduction；It also solves to bring in Laser Welding because the base material fusing point of two kinds of dissimilar materials difference is larger simultaneously
High rework rate, the unstable drawback of weldquality；(3) efficiency of connection procedure how is substantially improved.(4) how to simplify existing
The preparation method of electrode terminal and the piece composite members that are flexible coupling reduces process costs.
(2) technical solution
Above-mentioned technical problem is solved, the present invention provides the preparation method of a kind of electrode terminal and the piece composite members that are flexible coupling, states
Preparation method is implemented based on attachment device, and the attachment device includes coil 3, positioning device 6；The 3 ascender line circle of coil
Extending direction is equipped with rectangular metal item, effective join domain 7 as be flexible coupling piece 2 and 1 connection procedure of electrode terminal；It is described fixed
Position device 6 is used to for electrode terminal 1 and the piece 2 that is flexible coupling being positioned at effective join domain 7, and the piece 2 that is flexible coupling is placed in electrode
Between terminal 1 and effectively join domain 7；
The preparation method includes the following steps:
Step 1: the electric current by externally supplying coil the last 3 alternation；
Step 2: 2 surface of piece that is flexible coupling at effective join domain 7 can generate extremely strong inducing eddy-current；
Step 3: according to Lenz's law, effective join domain 7 and being flexible coupling the respective current direction in 2 surface of piece on the contrary, making
The piece 2 that must be flexible coupling will receive extremely strong Lorentz force；
Step 4: under Lorentz force effect, the piece 2 that is flexible coupling is sent out towards 1 high-speed motion of electrode terminal and with electrode terminal 1
Raw high velocity impact；
Step 5: being flexible coupling piece 2 in collision process in conjunction with the generation atom of electrode terminal 1, to complete to connect, complete electricity
The preparation of extreme son and the piece composite members that are flexible coupling.
Wherein, flow direction of the electric current in coil is defined as X-direction, and the direction on horizontal plane perpendicular to current direction is
Y-direction, vertical direction are Z-direction；
The rectangular metal item is long and narrow metal strip, and the length of effective join domain 7 in X direction is set as
Much smaller than the overall width of coil 3.
Wherein, in the preparation method, before step 1, further includes:
Step A: the positioning step implemented by positioning device 6；
Step B: the installation steps of positioning device 6；
Step C: the fixing step of positioning device 6.
Wherein, the step A, the positioning step implemented by positioning device 6 are realized by such as under type: by the positioning device
6 pairs of electrode terminals 1 carry out positioning spatially with the piece 2 that is flexible coupling；Wherein, the piece 2 that is flexible coupling is set as single-layer or multi-layer, institute
Stating positioning device 6 is the metal or non-metallic body block by insulation processing.
Wherein, the positioning spatially keeps relative position on three directions in X-direction, Y-direction, Z-direction；
Include: in the positioning step
Positioning sub-step in X-direction, Y-direction: positioning device 6 is to electrode terminal 1 and is flexible coupling piece 2 in X-direction, the side Y
Upward positioning；And
The support of Z-direction positions sub-step: positioning device 6 gives the support of Z-direction to electrode terminal 1 with the piece 2 that is flexible coupling,
So that electrode terminal 1 and being flexible coupling between piece 2 and forming a gap in z-direction, the gap setting is 0.1mm~3mm.
Wherein, the size of the positioning device 6 in the X direction is more than or equal to the size of electrode terminal 1 in the X direction, fixed
The size of position device 6 in the Y direction is greater than the size of piece 2 in the Y direction that is flexible coupling, and the size of positioning device 6 in z-direction is big
In the sum of electrode terminal 1, the size of the gap being flexible coupling between piece 2 and electrode terminal 1, the piece 2 that is flexible coupling in z-direction.
Wherein, the X-direction, the specific implementation of positioning sub-step in Y-direction are as follows:
6 bottom of positioning device is equipped with through slot in X direction, for accommodate electrod terminal 1 and the piece 2 that is flexible coupling, by electrode
Terminal 1 and the Standard being flexible coupling on piece 2 and the progress X-direction of positioning device 6, and realize that electrode terminal 1 exists with the piece 2 that is flexible coupling
Positioning in Y-direction；
The specific implementation of the support positioning sub-step of the Z-direction are as follows: through slot inner wall two sides lower end is provided with
Boss, the boss upper ends electrode terminal 1, in the premise for not influencing electrode terminal 1 with the realization welding of piece 2 that is flexible coupling
Under, make to keep certain interval between electrode terminal 1 and the piece 2 that is flexible coupling of lower section.
Wherein, when the piece 2 that is flexible coupling is single layer, then the gap be considered as electrode terminal 1 between the piece 2 that is flexible coupling away from
From；When the piece 2 that is flexible coupling is multilayer, then the gap be considered as electrode terminal 1 and the first single layer be flexible coupling between piece 2-1 away from
From and the first single layer is flexible coupling piece 2-1 and the second single layer is flexible coupling the sum of the distance between piece 2-2.
Wherein, in the positioning device 6, the align center of electrode terminal 1 and the piece 2 that is flexible coupling progress X-direction, Y-direction；Electricity
Extreme son 1 be flexible coupling piece 2 along the Z direction on overlapping region section be defined as B, electrode terminal 1 along the Z direction on section
It is defined as A, the area of A is greater than or equal to the area of B, and A covers B on long and width, prevents from causing due to electromagnetic percussion soft
Unnecessary deformation occurs for connection sheet 2.
Wherein, the installation steps of the step B, positioning device 6 are realized by such as under type:
It is surrounded outside the coil 3 by template cavity, forms an encapsulating structure, the encapsulating structure upper surface edge and rectangle
The parallel position two sides of metal strip are equipped with the mounting rod 18 of multiple helicitic textures, the multiple mounting rods 18 being arranged in pairs in pairs
In, with two pairs of mounting bar 18 be that four mounting rods 18 are one group and to cooperate with positioning device 6, thus realize to electrode terminal 1 and
The piece 2 that is flexible coupling is positioned.
Wherein, in the mounting rod 18 being arranged in pairs adjacent two pairs be one group, in every group of mounting rod 18, adjacent two pairs of peaces
The X-direction width dimensions of dress bar 18 mutual distance and electrode terminal 1, the piece 2 that is flexible coupling match；3 upper surface of coil
X-direction broad-ruler of the group number of upper mounting rod 18 according to effective 7 length of join domain relative to electrode terminal 1 and the piece 2 that is flexible coupling
Very little multiple determines；
Effective join domain 7 can be used for the connection of multi-group electrode terminal 1 with the piece 2 that is flexible coupling simultaneously as a result,.
Wherein, in the mounting rod 18 being arranged in pairs, be set as there are the mutual distance of certain two pairs of mounting bar 18 with
Electrode terminal 1 and the X-direction width for the piece 2 that is flexible coupling match；And 7 length of effective join domain be set as covering this two
The distance mutual to mounting rod 18；
Effective join domain 7 can be used for the electrode terminal 1 of different in width and the piece 2 that is flexible coupling as a result,.
Wherein, the fixing step of the step C, positioning device 6 are realized by such as under type:
The attachment device further includes pressing plate 15, and the pressing plate 15 is high-intensitive and impact-resistant metal or nonmetallic materials
Plate；
When the piece 2 that is flexible coupling is impacted by electromagnetic force to electrode terminal 1, electrode terminal 1 receives impact force and generates along Z-direction
Movement tendency can equally be generated since the positioning step of positioning device 6 can play in z-direction position-limiting action to electrode terminal 1
Along the movement tendency of Z-direction；Then compressed in Z-direction by pressing plate 15 to be realized to positioning device 6；
The pressing plate 15 pressing positioner 6 along the Z direction, by after positioning device 6 and positioning electrode terminal 1 and soft company
3 encapsulating structure upper surface of coil is fixed in contact pin 2.
Wherein, the mounting rod 18 play the guiding role in Z-direction, plays position-limiting action in the x direction and the y direction；The pressing plate
15 each edges are provided with through-hole, the moving along Z positive direction or Z opposite direction by through-hole and the realization of mounting rod 18 of pressing plate 15；
After pressing plate 15 is placed in 6 upper surface of positioning device, by mutually being locked between nut 19 and mounting rod 18, to protect
Hold pressing plate 15 and the compression relationship of positioning device 6 in z-direction；
The sum of the pressing plate 15 and the height of positioning device 6 are less than the height of mounting rod 18.
The rectangular metal item uses Cu alloy material；
The electrode terminal 1 is fine aluminium body block, and the piece 2 that is flexible coupling is made of single-layer or multi-layer pure copper sheet.
15, the preparation method of electrode terminal as described in claim 1 and the piece composite members that are flexible coupling, which is characterized in that institute
Stating attachment device further includes current feedback circuit；Wherein, the current feedback circuit and coil 3 are connected by high-tension cable, are made
The strong alternating current for obtaining current feedback circuit passes through cable and flows into coil 3；
The current feedback circuit is used to provide energy for connection procedure comprising for storing the current feedback circuit 8 of energy
With control system 9；
It is carrying out electrode terminal 1 and is being flexible coupling in the connection procedure of piece 2, firing current generator 8, in control system 9
Under control, current feedback circuit 8 generates high frequency oscillation pulse current in a short period of time, which flows through line by high voltage cable
In circle 3, when by the rectangular metal of effective join domain 7, by setting remote small for the width of effective join domain 7
In the overall width of coil 3, therefore the current density in effective join domain 7 is very big, and magnetic density is also corresponding very big,
And because the electric current is alternating current, and the piece 2 that is flexible coupling is the surface for being placed directly in effective join domain 7, therefore in soft company
The surface of contact pin 2 can generate extremely strong inducing eddy-current, according to Lenz's law, effective join domain 7 and 2 surface of piece that is flexible coupling
On the contrary, the piece 2 that is flexible coupling will receive extremely strong Lorentz force, the piece 2 that makes to be flexible coupling generates current direction to 1 high velocity impact of electrode terminal
Atom, which combines, completes connection；
In addition, because effective 7 length of join domain be according to electrode terminal 1 and be flexible coupling the width in the X direction of piece 2 and
Setting, therefore can be simultaneously by the combination of multiple electrodes terminal 1 and the piece 2 that is flexible coupling come the company of realization under conditions of pulsatile once electric discharge
It connects.
(3) beneficial effect
The coil case that preparation method technical solution of the present invention uses is furnished with current feedback circuit, passes through the wink of the current feedback circuit
When high current release generate high-strength induced magnetic field, the metal piece that is flexible coupling generates induced current in induced magnetic field, the induction
Electric current and induced magnetic field interact, and instantaneously generate huge electromagnetic propulsion power, and the metal piece that is flexible coupling is pushed away with high speed
To electrode terminal, so that metal is flexible coupling, high velocity impact occurs for piece and electrode terminal, forms plastic flow layer in collision junction
The phase between stable state, it is final to realize the two securely connection.
Compared with prior art, the present invention have it is following the utility model has the advantages that
(1) connection of electrode terminal described in preparation method of the present invention and the piece that is flexible coupling, belongs in microphysics level
The connection of formula is interpenetrated between atom, the two, which can be considered, to be combined into one.Therefore, by above-mentioned preparation method, it can be obtained one
Low internal resistance, high-intensitive jointing promote the performance of single battery and battery modules and extend its service life；Very good solution
And avoid the drawback that connection area caused by friction welding and laser welding is small, capacity usage ratio is low.
(2) preparation method of the present invention makes electrode terminal and is formed between atom between the piece that is flexible coupling by electromagnetic induction principle
Connection, base material do not need to melt, therefore almost without heat input, no heat affected area, and then will not generate the high fever as melting welding
The phenomenon that input makes base material changes in material properties, strength reduction.On the other hand Laser Welding is also solved because of two kinds of dissimilar materials
Base material fusing point differs greatly the unstable drawback of the high rework rate of bring, weldquality, and then obtains welding compared to conventional laser higher
The connection structure of the electrode terminal of reliability and the piece that is flexible coupling；Xenogenesis can also reliablely and stablely be realized using the connection method simultaneously
The connection of material.
(3) preparation method technical solution of the present invention additionally provides a kind of connection scheme that joint efficiency is substantially improved.It is described
The length of effective join domain of coil can increase with the piece group number that is flexible coupling according to electrode terminal and be lengthened.Therefore, by longer
Effective join domain can connect more electrode terminals and be flexible coupling piece；It solves friction welding and laser welding is only capable of once
Joint efficiency can be substantially improved in the drawbacks of completing one group of connection.
(4) preparation method technical solution of the present invention is different from original connection scheme, does not need first to prepare Copper-Aluminum compound electrode
The electrode terminal is carried out again after terminal to connect with the piece that is flexible coupling, but fine aluminium electrode terminal and the soft company of copper can be directly used
Contact pin is attached, and twice preparation process is reduced to one of preparation process, drastically reduces electrode terminal and the piece that is flexible coupling
The complexity of composite members preparation method.
Detailed description of the invention
Fig. 1 is the schematic diagram of electrode terminal with the piece composite members that are flexible coupling.
Fig. 2 is the metal electrode terminal schematic diagram of the prior art.
Fig. 3 is electrode terminal and the sheet connecting apparatus structural schematic diagram that is flexible coupling in the embodiment of the present invention.
Fig. 4 is positioning device and electrode terminal and the assembling relationship figure of piece in the X direction that is flexible coupling in the embodiment of the present invention.
Fig. 5 is the position after positioning device and electrode terminal and the piece that is flexible coupling assemble in the embodiment of the present invention on the visual angle X
Set relational graph.
Fig. 6 is the electrode terminal provided in the embodiment of the present invention and be flexible coupling piece relative position and area contrast schematic diagram.
Fig. 7 is the effective join domain schematic diagram provided in the embodiment of the present invention.
Fig. 8 is that single layer is flexible coupling piece and electrode terminal gap and multilayer is flexible coupling piece and electrode terminal gap schematic diagram.
Fig. 9 is the assembly method figure of the pressing plate provided in the embodiment of the present invention.
Figure 10 is the location diagram in the embodiment of the present invention after the nut check that provides with pressing plate.
Figure 11 is to connect microcosmic schematic diagram between electrode terminal and the piece atom that is flexible coupling in the embodiment of the present invention.
Specific embodiment
To keep the purpose of the present invention, content and advantage clearer, with reference to the accompanying drawings and examples, to of the invention
Specific embodiment is described in further detail.
It is flexible coupling the preparation method of piece composite members the present invention relates to a kind of electrode terminal and metal, the method is for executing
The operation for being interconnected and fixed electrode terminal with piece the two metal parts of being flexible coupling in field of batteries.Electrode terminal and soft company
Tab portion need to be overlapped placement, using the method that the Relatively orientation of X, Y-axis on plane space are fixed, guarantee the piece that is flexible coupling
After being pushed by electromagnetic force, can effectively it impact on electrode terminal.In addition, also being needed between electrode terminal and the piece that is flexible coupling
Certain clearance distance is kept, provides sufficient accelerating space for the piece that is flexible coupling of stress.The piece number of the present invention that is flexible coupling
Amount is not limited to single layer.
Specifically, the present invention provides following specific embodiment.
Embodiment 1
The present embodiment provides the preparation method of a kind of electrode terminal and the piece composite members that are flexible coupling, the preparation method is based on connecting
Connection device is implemented, and as shown in Fig. 3-Figure 11, the attachment device includes coil 3, positioning device 6；The 3 ascender line circle of coil
Extending direction is equipped with rectangular metal item, effective join domain 7 as be flexible coupling piece 2 and 1 connection procedure of electrode terminal；It is described fixed
Position device 6 is used to for electrode terminal 1 and the piece 2 that is flexible coupling being positioned at effective join domain 7, and the piece 2 that is flexible coupling is placed in electrode
Between terminal 1 and effectively join domain 7；
The preparation method includes the following steps:
Step 1: the electric current by externally supplying coil the last 3 alternation；
Step 2: 2 surface of piece that is flexible coupling at effective join domain 7 can generate extremely strong inducing eddy-current；
Step 3: according to Lenz's law, effective join domain 7 and being flexible coupling the respective current direction in 2 surface of piece on the contrary, making
The piece 2 that must be flexible coupling will receive extremely strong Lorentz force；
Step 4: under Lorentz force effect, the piece 2 that is flexible coupling is sent out towards 1 high-speed motion of electrode terminal and with electrode terminal 1
Raw high velocity impact；
Step 5: being flexible coupling piece 2 in collision process in conjunction with the generation atom of electrode terminal 1, to complete to connect, complete electricity
The preparation of extreme son and the piece composite members that are flexible coupling.
Wherein, flow direction of the electric current in coil is defined as X-direction, and the direction on horizontal plane perpendicular to current direction is
Y-direction, vertical direction are Z-direction；
The rectangular metal item is long and narrow metal strip, and the length of effective join domain 7 in X direction is set as
Much smaller than the overall width of coil 3.
Wherein, in the preparation method, before step 1, further includes:
Step A: the positioning step implemented by positioning device 6；
Step B: the installation steps of positioning device 6；
Step C: the fixing step of positioning device 6.
Wherein, the step A, the positioning step implemented by positioning device 6 are realized by such as under type: by the positioning device
6 pairs of electrode terminals 1 carry out positioning spatially with the piece 2 that is flexible coupling；Wherein, the positioning device 6 is the gold by insulation processing
Category or non-metallic body block.
Wherein, the positioning spatially keeps relative position on three directions in X-direction, Y-direction, Z-direction；
Include: in the positioning step
Positioning sub-step in X-direction, Y-direction: positioning device 6 is to electrode terminal 1 and is flexible coupling piece 2 in X-direction, the side Y
Upward positioning；And
The support of Z-direction positions sub-step: positioning device 6 gives the support of Z-direction to electrode terminal 1 with the piece 2 that is flexible coupling,
So that electrode terminal 1 and being flexible coupling between piece 2 and forming a gap in z-direction.
Wherein, the size of the positioning device 6 in the X direction is more than or equal to the size of electrode terminal 1 in the X direction, fixed
The size of position device 6 in the Y direction is greater than the size of piece 2 in the Y direction that is flexible coupling, and the size of positioning device 6 in z-direction is big
In the sum of electrode terminal 1, the size of the gap being flexible coupling between piece 2 and electrode terminal 1, the piece 2 that is flexible coupling in z-direction.
Wherein, the X-direction, the specific implementation of positioning sub-step in Y-direction are as follows:
6 bottom of positioning device is equipped with through slot in X direction, for accommodate electrod terminal 1 and the piece 2 that is flexible coupling, by electrode
Terminal 1 and the Standard being flexible coupling on piece 2 and the progress X-direction of positioning device 6, and realize that electrode terminal 1 exists with the piece 2 that is flexible coupling
Positioning in Y-direction；
The specific implementation of the support positioning sub-step of the Z-direction are as follows: through slot inner wall two sides lower end is provided with
Boss, the boss upper ends electrode terminal 1, in the premise for not influencing electrode terminal 1 with the realization welding of piece 2 that is flexible coupling
Under, make to keep certain interval between electrode terminal 1 and the piece 2 that is flexible coupling of lower section.
Wherein, the gap setting is 0.1mm~3mm.
Wherein, when the piece 2 that is flexible coupling is single layer, then the gap be considered as electrode terminal 1 between the piece 2 that is flexible coupling away from
From；When the piece 2 that is flexible coupling is multilayer, then the gap be considered as electrode terminal 1 and the first single layer be flexible coupling between piece 2-1 away from
From and the first single layer is flexible coupling piece 2-1 and the second single layer is flexible coupling the sum of the distance between piece 2-2.
Wherein, in the positioning device 6, the align center of electrode terminal 1 and the piece 2 that is flexible coupling progress X-direction, Y-direction；Electricity
Extreme son 1 be flexible coupling piece 2 along the Z direction on overlapping region section be defined as B, electrode terminal 1 along the Z direction on section
It is defined as A, the area of A is greater than or equal to the area of B, and A covers B on long and width, prevents from causing due to electromagnetic percussion soft
Unnecessary deformation occurs for connection sheet 2.
Wherein, the installation steps of the step B, positioning device 6 are realized by such as under type:
It is surrounded outside the coil 3 by template cavity, forms an encapsulating structure, the encapsulating structure upper surface edge and rectangle
The parallel position two sides of metal strip are equipped with the mounting rod 18 of multiple helicitic textures, the multiple mounting rods 18 being arranged in pairs in pairs
In, with two pairs of mounting bar 18 be that four mounting rods 18 are one group and to cooperate with positioning device 6, thus realize to electrode terminal 1 and
The piece 2 that is flexible coupling is positioned.
Wherein, in the mounting rod 18 being arranged in pairs adjacent two pairs be one group, in every group of mounting rod 18, adjacent two pairs of peaces
The X-direction width dimensions of dress bar 18 mutual distance and electrode terminal 1, the piece 2 that is flexible coupling match；3 upper surface of coil
X-direction broad-ruler of the group number of upper mounting rod 18 according to effective 7 length of join domain relative to electrode terminal 1 and the piece 2 that is flexible coupling
Very little multiple determines；
Effective join domain 7 can be used for the connection of multi-group electrode terminal 1 with the piece 2 that is flexible coupling simultaneously as a result,.
Wherein, in the mounting rod 18 being arranged in pairs, be set as there are the mutual distance of certain two pairs of mounting bar 18 with
Electrode terminal 1 and the X-direction width for the piece 2 that is flexible coupling match；And 7 length of effective join domain be set as covering this two
The distance mutual to mounting rod 18；
Effective join domain 7 can be used for the electrode terminal 1 of different in width and the piece 2 that is flexible coupling as a result,.
Wherein, the fixing step of the step C, positioning device 6 are realized by such as under type:
The attachment device further includes pressing plate 15；
When the piece 2 that is flexible coupling is impacted by electromagnetic force to electrode terminal 1, electrode terminal 1 receives impact force and generates along Z-direction
Movement tendency can equally be generated since the positioning step of positioning device 6 can play in z-direction position-limiting action to electrode terminal 1
Along the movement tendency of Z-direction；Then compressed in Z-direction by pressing plate 15 to be realized to positioning device 6；
The pressing plate 15 pressing positioner 6 along the Z direction, by after positioning device 6 and positioning electrode terminal 1 and soft company
3 encapsulating structure upper surface of coil is fixed in contact pin 2.
Wherein, the mounting rod 18 play the guiding role in Z-direction, plays position-limiting action in the x direction and the y direction；The pressing plate
15 each edges are provided with through-hole, the moving along Z positive direction or Z opposite direction by through-hole and the realization of mounting rod 18 of pressing plate 15；
After pressing plate 15 is placed in 6 upper surface of positioning device, by mutually being locked between nut 19 and mounting rod 18, to protect
Hold pressing plate 15 and the compression relationship of positioning device 6 in z-direction.
Wherein, the sum of the pressing plate 15 and the height of positioning device 6 are less than the height of mounting rod 18.
Wherein, the pressing plate 15 is high-intensitive and impact-resistant metal or non-metallic plates.
Wherein, the rectangular metal item is rectangular-bar copper.
Wherein, the electrode terminal 1 is fine aluminium body block.
Wherein, the piece 2 that is flexible coupling is made of single-layer or multi-layer pure copper sheet.
Wherein, the pure copper sheet surface is equipped with nickel coating, tin coating or very thin oxidation film, and fine aluminium body block surface is equipped with anode
Oxide layer.
Wherein, the attachment device further includes current feedback circuit；Wherein, the current feedback circuit and coil 3 pass through high pressure
Cable connection is got up, so that the strong alternating current of current feedback circuit is flowed into coil 3 by cable；
The current feedback circuit is used to provide energy for connection procedure comprising for storing the current feedback circuit 8 of energy
With control system 9.
Wherein, it according to above-mentioned preparation method, is carrying out electrode terminal 1 and is being flexible coupling in the connection procedure of piece 2, firing current
Generator 8, under the control of control system 9, current feedback circuit 8 generates high frequency oscillation pulse current in a short period of time, should
Electric current passes through in high voltage cable flowing through coil 3, when by the rectangular metal of effective join domain 7, by effectively connecting this
The width for connecing region 7 is set as being much smaller than the overall width of coil 3, therefore the current density in effective join domain 7 is very
Greatly, magnetic density is also corresponding very big, and because the electric current is alternating current, and the piece 2 that is flexible coupling is to be placed directly in effectively to connect
The surface in region 7 is connect, therefore extremely strong inducing eddy-current can be generated on the surface for the piece 2 that is flexible coupling, according to Lenz's law, is effectively connected
The current direction on region 7 and 2 surface of piece that is flexible coupling is connect on the contrary, the piece 2 that is flexible coupling will receive extremely strong Lorentz force, makes the piece that is flexible coupling
2, which generate atom to 1 high velocity impact of electrode terminal, combines completion connection；
In addition, because effective 7 length of join domain be according to electrode terminal 1 and be flexible coupling the width in the X direction of piece 2 and
Setting, therefore can be simultaneously by the combination of multiple electrodes terminal 1 and the piece 2 that is flexible coupling come the company of realization under conditions of pulsatile once electric discharge
It connects.
Embodiment 2
The attachment device of a kind of electrode terminal provided in this embodiment and the piece composite members that are flexible coupling, as shown in figure 3, the company
Connection device is attached for the piece that will be flexible coupling with electrode terminal.Hereinafter, using " connection " this term, carry out unified representation
The connection of two or more workpiece, it means that make to merge between generation atom between their juxtaposing surfaces.
Specifically, the present embodiment provides the attachment devices of a kind of electrode terminal and the piece composite members that are flexible coupling, such as Fig. 3 institute
Show, the attachment device includes coil 3, positioning device 6；
The 3 ascender line circle extending direction of coil is equipped with rectangular metal item, connect as piece 2 is flexible coupling with electrode terminal 1
Effective join domain 7 of process, as shown in Figure 7；
The positioning device 6 is used to for electrode terminal 1 and the piece 2 that is flexible coupling being positioned at effective join domain 7, soft company
Contact pin 2 is placed between electrode terminal 1 and effectively join domain 7；
By externally supplying the electric current of coil the last 3 alternation, 2 surface of piece that is flexible coupling at effective join domain 7 can be produced
Raw extremely strong inducing eddy-current, according to Lenz's law, effective join domain 7 and the respective current direction phase in 2 surface of piece that is flexible coupling
Instead, so that the piece 2 that is flexible coupling will receive extremely strong Lorentz force, under Lorentz force effect, the piece 2 that is flexible coupling is towards electrode terminal 1
Simultaneously with electrode terminal 1 high velocity impact occurs for high-speed motion, generates atom and combines, to complete to connect.
Wherein, flow direction of the electric current in coil is defined as X-direction, and the direction on horizontal plane perpendicular to current direction is
Y-direction, vertical direction are Z-direction；
The rectangular metal item is long and narrow metal strip, and the length of effective join domain 7 in X direction is set as
Much smaller than the overall width of coil 3.
Wherein, the positioning device 6 is metal or non-metallic body block by insulation processing, for electrode terminal 1 with
Be flexible coupling the positioning of piece 2 spatially.
Wherein, the positioning spatially keeps relative position on three directions in X-direction, Y-direction, Z-direction, packet
Include: positioning device 6 is to electrode terminal 1 and is flexible coupling positioning of the piece 2 in X-direction, Y-direction, meanwhile, as shown in figure 5, positioning dress
It sets 6 pairs of electrode terminals 1 and gives the support of Z-direction with the piece 2 that is flexible coupling, so that electrode terminal 1 and being flexible coupling between piece 2 in Z-direction
One gap of upper formation.
Wherein, the size of the positioning device 6 in the X direction is more than or equal to the size of electrode terminal 1 in the X direction, fixed
The size of position device 6 in the Y direction is greater than the size of piece 2 in the Y direction that is flexible coupling, and the size of positioning device 6 in z-direction is big
In the sum of electrode terminal 1, the size of the gap being flexible coupling between piece 2 and electrode terminal 1, the piece 2 that is flexible coupling in z-direction.
Wherein, 6 bottom of positioning device is equipped with through slot in X direction, for accommodate electrod terminal 1 and the piece 2 that is flexible coupling, such as
Shown in Fig. 4, by electrode terminal 1 and the Standard being flexible coupling on piece 2 and the progress X-direction of positioning device 6, and electrode terminal is realized
1 be flexible coupling the positioning of piece 2 in the Y direction；Through slot inner wall two sides lower end is provided with boss, the boss upper ends electricity
Extremely son 1, for making electrode terminal 1 and lower section under the premise of not influencing electrode terminal 1 and the piece 2 that is flexible coupling realizes welding
It is flexible coupling between piece 2 and keeps certain interval.The bulge size of the boss in the Y direction is 1mm~2mm, thickness in z-direction
Degree is equal to the size of gap in z-direction, identical as 6 size of positioning device in the X direction.
Wherein, the gap setting is 0.1mm~3mm.
Wherein, as shown in figure 8, then the gap is considered as electrode terminal 1 and is flexible coupling when the piece 2 that is flexible coupling is single layer
The distance between piece 2；When the piece 2 that is flexible coupling is multilayer, then the gap is considered as electrode terminal 1 and the first single layer is flexible coupling piece
The distance between 2-1 and the first single layer are flexible coupling piece 2-1 and the second single layer is flexible coupling the sum of the distance between piece 2-2.
Wherein, as shown in fig. 6, in the positioning device 6, electrode terminal 1 and the piece 2 that is flexible coupling carry out X-direction, Y-direction
Align center；Electrode terminal 1 be flexible coupling piece 2 along the Z direction on overlapping region section be defined as B, electrode terminal 1 is along Z
Section on direction is defined as A, if should ensure that the area of A is greater than or equal to the area of B without particular/special requirement, and A it is long with
It can be very good covering B on width, unnecessary deformation occurs for the piece 2 that prevents from causing to be flexible coupling due to electromagnetic percussion.The electrode
After terminal 1 and the piece 2 that is flexible coupling are positioned by positioning device 6, it is mutually located with effective join domain 7.
Wherein, it is surrounded outside the coil 3 by template cavity, forms an encapsulating structure, be equipped with one in the middle part of the encapsulating structure
The rectangular metal item long and narrow along coil extending direction, that is, X-direction, is the important component of coil, connection foreign current hair
Raw device 8, the rectangular-bar copper position are set to 3 medium position of coil, connect as electrode terminal and the effective of the piece connection procedure that is flexible coupling
Connect region 7；Meanwhile the encapsulating structure upper surface is equipped with multiple screw thread knots along the position two sides parallel with rectangular metal item in pairs
The mounting rod 18 of structure is four mounting rods 18 for one group with two pairs of mounting bar 18 in the multiple mounting rods 18 being arranged in pairs
To cooperate with positioning device 6, electrode terminal 1 and the piece 2 that is flexible coupling are positioned to realize.
Wherein, in the mounting rod 18 being arranged in pairs adjacent two pairs be one group, in every group of mounting rod 18, adjacent two pairs of peaces
The X-direction width dimensions of dress bar 18 mutual distance and electrode terminal 1, the piece 2 that is flexible coupling match；3 upper surface of coil
X-direction broad-ruler of the group number of upper mounting rod 18 according to effective 7 length of join domain relative to electrode terminal 1 and the piece 2 that is flexible coupling
Very little multiple determines；
Effective join domain 7 can be used for the connection of multi-group electrode terminal 1 with the piece 2 that is flexible coupling simultaneously as a result,.
Wherein, in the mounting rod 18 being arranged in pairs, be set as there are the mutual distance of certain two pairs of mounting bar 18 with
Electrode terminal 1 and the X-direction width for the piece 2 that is flexible coupling match；And 7 length of effective join domain be set as covering this two
The distance mutual to mounting rod 18；
Effective join domain 7 can be used for the electrode terminal 1 of different in width and the piece 2 that is flexible coupling as a result,.
Wherein, the attachment device further includes pressing plate 15；
When the piece 2 that is flexible coupling is impacted by electromagnetic force to electrode terminal 1, electrode terminal 1 receives impact force and generates along Z-direction
Movement tendency can equally be generated since the positioning operation of positioning device 6 can play in z-direction position-limiting action to electrode terminal 1
Along the movement tendency of Z-direction；Then compressed in Z-direction by pressing plate 15 to be realized to positioning device 6；
The pressing plate 15 for pressing positioner 6 along the Z direction, by after positioning device 6 and positioning electrode terminal 1 with
The piece 2 that is flexible coupling is fixed on 3 encapsulating structure upper surface of coil.
Wherein, as shown in figure 9, the mounting rod 18 play the guiding role in Z-direction, limit is played in the x direction and the y direction and is made
With；Each edge of the pressing plate 15 is provided with through-hole, and pressing plate 15 is realized by through-hole and mounting rod 18 along Z positive direction or Z negative side
To movement；
As shown in Figure 10, after pressing plate 15 is placed in 6 upper surface of positioning device, pass through phase between nut 19 and mounting rod 18
Mutually locking, to keep pressing plate 15 and the compression relationship of positioning device 6 in z-direction.
Wherein, the sum of the pressing plate 15 and the height of positioning device 6 are less than the height of mounting rod 18.
Wherein, the pressing plate 15 is high-intensitive and impact-resistant metal or non-metallic plates.
Wherein, the rectangular metal item is rectangular-bar copper.
Wherein, the electrode terminal 1 is fine aluminium body block.The fine aluminium body block surfacing is bright and clean, and cleans without greasy dirt.
Wherein, the piece 2 that is flexible coupling is made of single-layer or multi-layer pure copper sheet.Its any surface finish, and clean without greasy dirt.
Wherein, the pure copper sheet surface is equipped with nickel coating, tin coating or very thin oxidation film, and fine aluminium body block surface is equipped with anode
Oxide layer.The structure setting further can be flexible coupling piece composite members to electrode terminal and metal and battery is protected, and prevents
Poor environment causes the injury such as corrosion to it in use.
The fine aluminium body block is may customize according to demand as various sizes, shape；The pure copper sheet is customized to thickness according to demand
Degree is 0.02mm-3mm, and shape can carry out preprocessing into the shape of various suitable welding according to welding demand.
Wherein, the attachment device further includes current feedback circuit；Wherein, the current feedback circuit and coil 3 pass through high pressure
Cable connection is got up, so that the strong alternating current of current feedback circuit is flowed into coil 3 by cable；
The current feedback circuit is used to provide energy for connection procedure comprising for storing the current feedback circuit 8 of energy
With control system 9.
Wherein, it according to above-mentioned attachment device, is carrying out electrode terminal 1 and is being flexible coupling in the connection procedure of piece 2, firing current
Generator 8, under the control of control system 9, current feedback circuit 8 generates high frequency oscillation pulse current in a short period of time, should
Electric current passes through in high voltage cable flowing through coil 3, when by the rectangular metal of effective join domain 7, by effectively connecting this
The width for connecing region 7 is set as being much smaller than the overall width of coil 3, therefore the current density in effective join domain 7 is very
Greatly, magnetic density is also corresponding very big, and because the electric current is alternating current, and the piece 2 that is flexible coupling is to be placed directly in effectively to connect
The surface in region 7 is connect, therefore extremely strong inducing eddy-current can be generated on the surface for the piece 2 that is flexible coupling, according to Lenz's law, is effectively connected
The current direction on region 7 and 2 surface of piece that is flexible coupling is connect on the contrary, the piece 2 that is flexible coupling will receive extremely strong Lorentz force, makes the piece that is flexible coupling
2, which generate atom to 1 high velocity impact of electrode terminal, combines completion connection；Its microstructure can refer to Figure 11；
In addition, because effective 7 length of join domain be according to electrode terminal 1 and be flexible coupling the width in the X direction of piece 2 and
Setting, therefore can be simultaneously by the combination of multiple electrodes terminal 1 and the piece 2 that is flexible coupling come the company of realization under conditions of pulsatile once electric discharge
It connects.
In conclusion technical solution provided by the invention is different from traditional melting welding, it is not required to fusing base material, no
The material property of raw material can be destroyed, therefore, the connection for being applied to electrode terminal and the piece that is flexible coupling makes its jointing
Intensity and contact internal resistance are better than the mode of the Combined machinings such as friction welding and Laser Welding, are conducive to promote the performance of battery and make
Use the service life.
Also, the technical solution belongs to physical collision connection, passes through the high collision speed of the above-mentioned 200-1000m/s referred to
Degree makes mutual extrusion between metallic atom realize connection, therefore is not limited by dissimilar material.
In addition, the join domain for the coil mentioned in the program can be according to the size and number of electrode terminal and the piece that is flexible coupling
Extend again, then multi-group electrode terminal is disposably positioned and be flexible coupling piece component, and the company of being completed in a short time by implementation system
It connects, to realize efficient production.
In the present embodiment, the fine aluminium body block is zero blank of aluminium or molding acquisition in a mold；The pure copper sheet is zero to cut
Material, can be obtained by techniques such as punching press, shearing, laser cuttings.This kind of scheme can be very simple and easy acquisition fine aluminium body block
And pure copper sheet.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and deformations can also be made, these improvement and deformations
Also it should be regarded as protection scope of the present invention.
Claims (15)
1. the preparation method of a kind of electrode terminal and the piece composite members that are flexible coupling, which is characterized in that the preparation method is based on connection
Device is implemented, and the attachment device includes coil (3), positioning device (6)；Coil (3) the ascender line circle extending direction is set
There is rectangular metal item, effective join domain (7) as the piece that is flexible coupling (2) Yu electrode terminal (1) connection procedure；The positioning dress
(6) are set for electrode terminal (1) and the piece (2) that is flexible coupling to be positioned at effective join domain (7), the piece that is flexible coupling (2) is set
Between electrode terminal (1) and effective join domain (7)；
The preparation method includes the following steps:
Step 1: the electric current by externally supplying the strong alternation of coil (3)；
Step 2: extremely strong inducing eddy-current can be generated by being located at the piece that is flexible coupling (2) surface at effective join domain (7)；
Step 3: according to Lenz's law, the respective current direction of effective join domain (7) and the piece that is flexible coupling (2) surface is on the contrary, make
The piece (2) that must be flexible coupling will receive extremely strong Lorentz force；
Step 4: Lorentz force effect under, the piece that is flexible coupling (2) towards electrode terminal (1) high-speed motion and with electrode terminal (1)
High velocity impact occurs；
Step 5: being flexible coupling piece (2) in collision process in conjunction with electrode terminal (1) generation atom, to complete to connect, complete electricity
The preparation of extreme son and the piece composite members that are flexible coupling.
2. the preparation method of electrode terminal as described in claim 1 and the piece composite members that are flexible coupling, which is characterized in that described in definition
Flow direction of the electric current in coil is X-direction, perpendicular to the direction of current direction is Y-direction on horizontal plane, vertical direction is the side Z
To；
The rectangular metal item is long and narrow metal strip, and the length of effective join domain (7) in X direction is set as remote
Less than the overall width of coil (3).
3. the preparation method of electrode terminal as claimed in claim 2 and the piece composite members that are flexible coupling, which is characterized in that the preparation
In method, before step 1, further includes:
Step A: the positioning step implemented by positioning device (6)；
Step B: the installation steps of positioning device (6)；
Step C: the fixing step of positioning device (6).
4. the preparation method of electrode terminal as claimed in claim 3 and the piece composite members that are flexible coupling, which is characterized in that the step
A, the positioning step implemented by positioning device (6) are realized by such as under type: by the positioning device (6) to electrode terminal (1) and
Be flexible coupling the positioning of piece (2) progress spatially；Wherein, the piece that is flexible coupling (2) is set as single-layer or multi-layer, the positioning device
It (6) is the metal or non-metallic body block by insulation processing.
5. the preparation method of electrode terminal as claimed in claim 4 and the piece composite members that are flexible coupling, which is characterized in that the space
On positioning, i.e., keep relative position on three directions in X-direction, Y-direction, Z-direction；
Include: in the positioning step
Positioning sub-step in X-direction, Y-direction: positioning device (6) is to electrode terminal (1) and is flexible coupling piece (2) in X-direction, Y
Positioning on direction；And
The support of Z-direction positions sub-step: positioning device (6) gives the branch of Z-direction to electrode terminal (1) with the piece (2) that is flexible coupling
Support so that a gap is formed between electrode terminal (1) and the piece that is flexible coupling (2) in z-direction, the gap setting for 0.1mm~
3mm。
6. the preparation method of electrode terminal as claimed in claim 5 and the piece composite members that are flexible coupling, which is characterized in that the positioning
The size of device (6) in the X direction is more than or equal to the size of electrode terminal (1) in the X direction, and positioning device (6) is in the Y direction
Size be greater than and be flexible coupling the size of piece (2) in the Y direction, the size of positioning device (6) in z-direction is greater than electrode terminal
(1), the sum of the size of the gap being flexible coupling between piece (2) and electrode terminal (1), the piece that is flexible coupling (2) in z-direction.
7. the preparation method of electrode terminal as claimed in claim 5 and the piece composite members that are flexible coupling, which is characterized in that
The specific implementation of positioning sub-step in the X-direction, Y-direction are as follows:
Positioning device (6) bottom is equipped with through slot in X direction, for accommodate electrod terminal (1) and is flexible coupling piece (2), will be electric
Extreme son (1) and the piece that is flexible coupling (2) and positioning device (6) carry out the Standard in X-direction, and realize electrode terminal (1) and
Be flexible coupling the positioning of piece (2) in the Y direction；
The specific implementation of the support positioning sub-step of the Z-direction are as follows: through slot inner wall two sides lower end is provided with boss,
The boss upper ends electrode terminal (1), for before not influencing electrode terminal (1) and being flexible coupling piece (2) realization welding
It puts, makes to keep certain interval between electrode terminal (1) and the piece that is flexible coupling (2) of lower section.
8. the preparation method of electrode terminal as claimed in claim 5 and the piece composite members that are flexible coupling, which is characterized in that the soft company
When contact pin (2) is single layer, then the gap is considered as electrode terminal (1) and the distance between the piece (2) that is flexible coupling；The piece that is flexible coupling
(2) when being multilayer, then the gap is considered as electrode terminal (1) and the first single layer is flexible coupling the distance between piece (2-1) and first
Single layer is flexible coupling piece (2-1) and the second single layer is flexible coupling the sum of the distance between piece (2-2).
9. the preparation method of electrode terminal as claimed in claim 5 and the piece composite members that are flexible coupling, which is characterized in that the positioning
In device (6), the align center of electrode terminal (1) and the piece that is flexible coupling (2) progress X-direction, Y-direction；Electrode terminal (1) and soft company
Overlapping region section in contact pin (2) along the Z direction is defined as B, electrode terminal (1) along the Z direction on section be defined as A, A
Area be greater than or equal to the area of B, and A it is long with cover B on width, prevent from leading to be flexible coupling piece (2) due to electromagnetic percussion
Unnecessary deformation occurs.
10. the preparation method of electrode terminal as claimed in claim 7 and the piece composite members that are flexible coupling, which is characterized in that the step
The installation steps of rapid B, positioning device (6) are realized by such as under type:
It is surrounded outside the coil (3) by template cavity, forms an encapsulating structure, the encapsulating structure upper surface is along golden with rectangle
Belong to the mounting rod (18) that the parallel position two sides of item are equipped with multiple helicitic textures in pairs, the multiple mounting rods being arranged in pairs
(18) in, it is one group with four mounting rods (18) of two pairs of mounting bar (18) i.e. and to cooperate with positioning device (6), to realize to electricity
Extreme son (1) and the piece that is flexible coupling (2) are positioned.
11. electrode terminal as claimed in claim 10 and the preparation method of piece composite members of being flexible coupling, which is characterized in that it is described at
It is one group to adjacent two pairs in the mounting rod (18) of setting, in every group of mounting rod (18), adjacent two pairs of mounting bar (18) is mutual
Distance and the X-direction width dimensions of electrode terminal (1), the piece that is flexible coupling (2) match；It is installed on coil (3) upper surface
X-direction width of the group number of bar (18) according to effective join domain (7) length relative to electrode terminal (1) and the piece (2) that is flexible coupling
The multiple of size determines；
Effective join domain (7) can be used for the connection of multi-group electrode terminal (1) with piece (2) that are flexible coupling simultaneously as a result,.
12. electrode terminal as claimed in claim 10 and the preparation method of piece composite members of being flexible coupling, which is characterized in that it is described at
To in the mounting rod (18) of setting, be set as there are the mutual distance of certain two pairs of mounting bar (18) and electrode terminal (1) with it is soft
The X-direction width of connection sheet (2) matches；And effective join domain (7) length is set as covering the two pairs of mounting bar
(18) mutual distance；
Effective join domain (7) can be used for the electrode terminal (1) of different in width and be flexible coupling piece (2) as a result,.
13. the preparation method of electrode terminal as claimed in claim 10 and the piece composite members that are flexible coupling, which is characterized in that the step
The fixing step of rapid C, positioning device (6) are realized by such as under type:
The attachment device further includes pressing plate (15), and the pressing plate (15) is high-intensitive and impact-resistant metal or nonmetallic materials
Plate；
When the piece that is flexible coupling (2) is impacted by electromagnetic force to electrode terminal (1), electrode terminal (1) receives impact force and generates along the side Z
To movement tendency, since the positioning step of positioning device (6) can play in z-direction position-limiting action to electrode terminal (1), equally
The movement tendency along Z-direction can be generated；Then compressed in Z-direction by pressing plate (15) to be realized to positioning device (6)；
The pressing plate (15) pressing positioner (6) along the Z direction, by behind positioning device (6) and positioning electrode terminal (1) with
The piece (2) that is flexible coupling is fixed on coil (3) encapsulating structure upper surface.
14. the preparation method of electrode terminal as claimed in claim 13 and the piece composite members that are flexible coupling, which is characterized in that the peace
Dress bar (18) play the guiding role in Z-direction, plays position-limiting action in the x direction and the y direction；Each edge of the pressing plate (15) is provided with
Through-hole, pressing plate (15) moving along Z positive direction or Z opposite direction by through-hole and mounting rod (18) realization；
After pressing plate (15) is placed in positioning device (6) upper surface, by mutually being locked between nut (19) and mounting rod (18),
To keep pressing plate (15) and the compression relationship of positioning device (6) in z-direction；
The sum of height of the pressing plate (15) and positioning device (6) is less than the height of mounting rod (18)；
The rectangular metal item uses Cu alloy material；
The electrode terminal (1) is fine aluminium body block, and the piece that is flexible coupling (2) is made of single-layer or multi-layer pure copper sheet.
15. the preparation method of electrode terminal as described in claim 1 and the piece composite members that are flexible coupling, which is characterized in that the company
Connection device further includes current feedback circuit；Wherein, the current feedback circuit and coil (3) are connected by high-tension cable, so that
The strong alternating current of current feedback circuit is flowed into coil (3) by cable；
The current feedback circuit is used to for connection procedure provide energy comprising for store energy current feedback circuit (8) and
Control system (9)；
It is carrying out electrode terminal (1) and is being flexible coupling in the connection procedure of piece (2), firing current generator (8), in control system
(9) under control, current feedback circuit (8) generates high frequency oscillation pulse current in a short period of time, which passes through high-voltage line
In cable flowing through coil (3), when by the rectangular metal of effective join domain (7), by by effective join domain (7)
Width is set as the overall width much smaller than coil (3), therefore the current density in effective join domain (7) is very big, magnetic
Field density is also corresponding very big, and because the electric current is alternating current, and the piece that is flexible coupling (2) is to be placed directly in effective bonding pad
The surface in domain (7), therefore extremely strong inducing eddy-current can be generated on the surface of the piece that is flexible coupling (2), according to Lenz's law, effectively connect
The current direction in region (7) and the piece that is flexible coupling (2) surface is connect on the contrary, the piece that is flexible coupling (2) will receive extremely strong Lorentz force, is made soft
Connection sheet (2) generates atom to electrode terminal (1) high velocity impact and combines completion connection；
In addition, because effective join domain (7) length is the width according to electrode terminal (1) and the piece that is flexible coupling (2) in the X direction
And it is arranged, therefore can simultaneously carry out the combination of multiple electrodes terminal (1) and the piece that is flexible coupling (2) under conditions of pulsatile once electric discharge
Realize connection.
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| CN201810736035.XA CN109088036A (en) | 2018-07-06 | 2018-07-06 | The preparation method of electrode terminal and the piece composite members that are flexible coupling |
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|---|---|---|---|
| CN201810736035.XA CN109088036A (en) | 2018-07-06 | 2018-07-06 | The preparation method of electrode terminal and the piece composite members that are flexible coupling |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112975105A (en) * | 2021-02-08 | 2021-06-18 | 昆山聚创新能源科技有限公司 | Method for welding tab and connecting sheet, battery and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106583977A (en) * | 2016-12-29 | 2017-04-26 | 重庆市送变电工程有限公司 | Modular electromagnetic pulse welding platform |
| CN107081513A (en) * | 2017-05-17 | 2017-08-22 | 重庆市光学机械研究所 | Multi-layer cell aluminium sheet ear, copper polar ear electromagnetic pulse welding method |
| CN206702406U (en) * | 2017-05-17 | 2017-12-05 | 重庆市光学机械研究所 | Homogeneity or different metal materials electromagnetic pulse overlap joint welder |
-
2018
- 2018-07-06 CN CN201810736035.XA patent/CN109088036A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106583977A (en) * | 2016-12-29 | 2017-04-26 | 重庆市送变电工程有限公司 | Modular electromagnetic pulse welding platform |
| CN107081513A (en) * | 2017-05-17 | 2017-08-22 | 重庆市光学机械研究所 | Multi-layer cell aluminium sheet ear, copper polar ear electromagnetic pulse welding method |
| CN206702406U (en) * | 2017-05-17 | 2017-12-05 | 重庆市光学机械研究所 | Homogeneity or different metal materials electromagnetic pulse overlap joint welder |
Non-Patent Citations (1)
| Title |
|---|
| 迟露鑫等: "铝/不锈钢电磁脉冲焊接界面组织性能分析", 《重庆理工大学学报（自然科学）》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112975105A (en) * | 2021-02-08 | 2021-06-18 | 昆山聚创新能源科技有限公司 | Method for welding tab and connecting sheet, battery and preparation method thereof |
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Application publication date: 20181225 |
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| RJ01 | Rejection of invention patent application after publication |