CN109759688A - A kind of battery connecting piece pressure welding fusion device and production equipment - Google Patents
A kind of battery connecting piece pressure welding fusion device and production equipment Download PDFInfo
- Publication number
- CN109759688A CN109759688A CN201811623861.XA CN201811623861A CN109759688A CN 109759688 A CN109759688 A CN 109759688A CN 201811623861 A CN201811623861 A CN 201811623861A CN 109759688 A CN109759688 A CN 109759688A
- Authority
- CN
- China
- Prior art keywords
- pressure
- welding
- pressure welding
- connector
- press
- 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
Links
Classifications
-
- 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
Landscapes
- Connection Of Batteries Or Terminals (AREA)
Abstract
It include: press welding device the present invention provides a kind of battery connecting piece pressure welding fusion device, for connector described in pressure welding；The power supply device being electrically connected with the press welding device is used to provide the described electric energy required for press welding device；And the control device being electrically connected with the press welding device and the power supply device, for controlling the operation of the press welding device and the power supply device.By the way that constant-current stabilizer is arranged, the electric current for guaranteeing input press welding device is stationary value, the instantaneous output current for avoiding power supply device is excessive and leads to the problem of burning lower melting-point aluminium foil, to solve the problems, such as the pressure welding integration technology using the battery connecting piece of aluminium foil, the production and application of the battery connecting piece using aluminium foil are realized.
Description
Technical field
The present invention relates to field of batteries, and in particular to the life of a kind of battery connecting piece pressure welding fusion device and battery connecting piece
Produce equipment.
Background technique
Battery pack connector is the important component being electrically connected between battery pack, and the connection between battery is to entire battery
The performance (such as consistency, service life) of group is extremely important, and the connection pine during vibration between battery in order to prevent
The dynamic and rapid decay of the service life that causes battery pack final, it will usually take the mode being flexible coupling.
In the prior art, copper foil or aluminium foil are generallyd use as the main material being flexible coupling, in order to reduce the electricity of connector
Resistance can weld nickel foil on copper foil or aluminium foil.However, existing welding mostly uses spot welding, the immediate current of spot welding is larger, and right
In lower melting-point aluminium foil, the high current of short time will lead to aluminium foil and burn.
Summary of the invention
In view of this, the embodiment of the present invention is dedicated to providing a kind of battery connecting piece pressure welding fusion device, solve above-mentioned
Can not pressure welding aluminium foil the problem of.
According to an aspect of the present invention, a kind of battery connecting piece pressure welding fusion device that one embodiment of the invention provides, packet
It includes: press welding device, for connector described in pressure welding；The power supply device being electrically connected with the press welding device is used to provide the described pressure
Electric energy required for welder；And the constant-current stabilizer being electrically connected with the output end of the power supply device and the press welding device,
For exporting stable electric current to the press welding device.
In one embodiment, the constant-current stabilizer includes inversion rectifier.
In one embodiment, the pressure welding fusion device further comprises: the temperature being set on the press welding device is visited
Survey device, the temperature for connector described in real-time detection.Preferably, the temperature detection device includes infrared detecting set.
In one embodiment, the press welding device includes Macromolecular diffusion welding machine.
In one embodiment, further comprise: the control device being electrically connected with the press welding device, for being merged in pressure welding
In the process, the pressure welding temperature, pressure welding pressure and pressure welding time of the press welding device are controlled.
In one embodiment, when the connector includes aluminium foil, the pressure welding temperature is 550 DEG C -590 DEG C；Or work as institute
When to state connector include copper foil, the pressure welding temperature is 680 DEG C -980 DEG C.
In one embodiment, the pressure welding pressure be 2MPa-6MPa, wherein the pressure welding pressure respectively with the connection
The number of plies of part and the size to pressure surface of the connector are positively correlated.
In one embodiment, the pressure welding time be 15s-1min, wherein the pressure welding time respectively with the connector
The number of plies and the connector to pressure surface size be positively correlated.
According to another aspect of the present invention, a kind of battery pack connector production equipment that one embodiment of the invention provides, packet
It includes: described in any item battery connecting piece pressure welding fusion devices as above；It is set to the subsequent work stations of the pressure welding fusion device
Stamping device carries out punching press for the connector fused to the pressure welding, punching press fall in the boundary of the connector by
In pressure welding merge and squeeze bulging at the inadequate position of bonding force；And it is set to the polishing of the subsequent work stations of the stamping device
Device, for being polished to the connector after punching press.
In one embodiment, the equipment further include: be set to the apparatus for bending of the subsequent work stations of the burnishing device, use
The connector after it will polish carries out bending to predetermined angle.
Battery connecting piece pressure welding fusion device provided in an embodiment of the present invention guarantees input pressure by the way that constant-current stabilizer is arranged
The electric current of welder is stationary value, and the instantaneous output current for avoiding power supply device is excessive and causes to burn lower melting-point aluminium foil
The problem of, to solve the problems, such as the pressure welding integration technology using the battery connecting piece of aluminium foil, realize the battery using aluminium foil
The production and application of connector.
Detailed description of the invention
Fig. 1 show a kind of structural schematic diagram of battery connecting piece pressure welding fusion device of one embodiment of the invention offer.
Fig. 2 show the method flow diagram of the battery connecting piece pressure welding fusion of one embodiment of the invention offer.
Fig. 3 show another embodiment of the present invention provides a kind of battery connecting piece pressure welding fusion device structural representation
Figure.
Fig. 4 show a kind of structural schematic diagram of battery connecting piece of one embodiment of the invention offer.
Fig. 5 show another embodiment of the present invention provides a kind of battery connecting piece pressure welding fusion device structural representation
Figure.
Fig. 6 show a kind of structural schematic diagram of battery connecting piece generating device of one embodiment of the invention offer.
Fig. 7 show a kind of flow chart of battery pack connector production method of another embodiment of the present invention offer.
Fig. 8 show another embodiment of the present invention provides a kind of battery connecting piece generating device structural schematic diagram.
Fig. 9 show a kind of flow chart of battery pack connector production method of another embodiment of the present invention offer.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that the described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.Based on this
Embodiment in invention, every other reality obtained by those of ordinary skill in the art without making creative efforts
Example is applied, shall fall within the protection scope of the present invention.
In order to guarantee the connection electric conductivity between battery while also be adapted to the vibration scenes of battery applications, it is set to electricity
Connector between pond is usually metal material, such as metallic copper or metallic aluminium etc..Due to aluminium have low-density, high elastic modulus,
The performances such as high ductibility and rate of heat dissipation height, aluminium foil can make connector lightweight as the main body that is flexible coupling, and ductility is high, for electricity
Pond provides more light weight, stable connection.Since copper has excellent electric conductivity and certain ductility, copper foil is as connector master
Body, or battery provides stable connection, and nickel foil can effectively reduce resistance as the accessory body component that is flexible coupling, effectively reduce
Electric quantity consumption in battery use process.And copper foil or aluminium foil pressure welding can be used to improve the flexibility of connector, so as to
Vibration is absorbed, avoids vibrating the decaying for leading to the damage of connector and the performance of battery pack and service life for a long time.However, golden
Belong to aluminium relative to metallic copper, cost is relatively low and flexibility, that is, heat dissipation performance of aluminium is also higher, but the fusing point of aluminium foil is lower, when pressure welding
Instantaneous peak value high current will will lead to aluminium foil fusion, to cannot achieve the pressure welding of aluminium foil.
For the technical problem for solving aluminium foil pressure welding, the embodiment of the present invention proposes a kind of battery connecting piece pressure welding fusion and sets
It is standby, constant-current stabilizer is arranged by the output end in power supply device, the electric current of guarantee input press welding device is in stable range, no
It will appear peak point current, to ensure that going on smoothly for the pressure welding fusion of aluminium foil, realize the battery connecting piece of aluminium foil material
Production.Battery connecting piece pressure welding fusion device provided in an embodiment of the present invention and production equipment are illustrated with reference to the accompanying drawing
Specific structure and implementation.
Fig. 1 show a kind of structural schematic diagram of battery connecting piece pressure welding fusion device of one embodiment of the invention offer.
As shown in Figure 1, the battery connecting piece pressure welding fusion device includes: press welding device 2, it to be used for pressure welding connector；With 2 electricity of press welding device
The power supply device 3 of connection, for providing electric energy required for press welding device 2；And with the output end of the power supply device 3 and institute
The constant-current stabilizer 4 for stating the electrical connection of press welding device 2, for exporting stable electric current to the press welding device 2.
Wherein, connector may include be flexible coupling main body and the accessory body component that is flexible coupling for stacking setting, and be flexible coupling accessory body group
Part includes being respectively placed in first accessory body and second that is flexible coupling of the two sides up and down for the main body that is flexible coupling to be flexible coupling accessory body, and be flexible coupling master
Body is the main component of connector, and the accessory body component that is flexible coupling is the component for being set to the main body that is flexible coupling or more two sides, and effect is
Reduce the resistance between battery and connector.
In existing pressure welding, the welding manner of spot welding is generallyd use, however voltage and current value caused by spot welding all can
It is down to preset voltage value and current value again after having the peak value of a moment, voltage and current value all can reach the peak value moment,
However, the high voltage and high current of short time (such as 2 seconds) will lead to the thawing of the material for lower melting-point material, from
And lead to not weld.Therefore, in embodiments of the present invention, filled by the way that current stabilization is arranged between power supply device and press welding device
It sets, to realize that the voltage and current of power supply device output maintains stable an output voltage and electricity under the action of constant-current stabilizer
Stream, for example, the voltage value set is 140A, under the action of constant-current stabilizer, the instantaneous current value for reaching press welding device can all be tieed up
It holds in 140A or so, ensure that being normally carried out for pressure welding.
By the way that constant-current stabilizer is arranged, guarantees that the electric current of input press welding device is stationary value, avoid the moment of power supply device
Output electric current is excessive and leads to the problem of burning lower melting-point aluminium foil, to solve the pressure of the battery connecting piece using aluminium foil
Integration technology problem is welded, the production and application of the battery connecting piece using aluminium foil are realized.
In one embodiment, constant-current stabilizer 4 can be inversion rectifier.It should be appreciated that the embodiment of the present invention can basis
Actual application scenarios and choose different constant-current stabilizers, as long as selected constant-current stabilizer is able to maintain that a stable output
Voltage and current, the embodiment of the present invention to the concrete type of constant-current stabilizer without limitation.
Fig. 2 show the method flow diagram of the battery connecting piece pressure welding fusion of one embodiment of the invention offer.Such as Fig. 2 institute
Show, above-mentioned battery pack connector can realize that pressure welding is merged by the following method:
Step 101: stacking and place be flexible coupling main body and the accessory body component that is flexible coupling.Wherein, the accessory body component that is flexible coupling includes point
The first of the two sides up and down for the main body that the is flexible coupling accessory bodies and second that are flexible coupling are not placed in be flexible coupling accessory body.
Stack to place to be flexible coupling and main body and be flexible coupling accessory body component, can be flexible coupling main body and the accessory body component that is flexible coupling it is same
Central coaxial line, which stacks, to be placed.According to welding process requirement, positional shift allows in error range, and the present invention is to error range
Without limitation.
The main body that is flexible coupling and the accessory body component that is flexible coupling all are after cutting, and size should be equal, and cut lengths are big
In to pressure surface size, to retain the position of fixed operation, wherein to pressure surface be that the main body that is flexible coupling is affixed with the accessory body component that is flexible coupling
The cross section for needing to carry out pressure welding position closed, the present invention reserve size without limitation to specific.
Step 102: main body will be flexible coupling using disposable pressure welding and the accessory body component pressure welding that is flexible coupling permeates entirety.
Specifically, the main body that will be flexible coupling and the accessory body component that is flexible coupling are placed in above-mentioned press welding device, with more sizings
Fixture is fixed to stack be flexible coupling main body and the accessory body component that is flexible coupling placed, extremely by control device control power supply device output electric energy
Press welding device, and control that press welding device will be flexible coupling main body and the accessory body component that is flexible coupling carries out pressure welding and permeates entirety.Its
In more sizing fixtures be adjustable positioning fixture, can be according to being flexible coupling main body and the size for the accessory body that is flexible coupling is adjusted
It is fixed, the present invention to the concrete forms of more sizing fixtures without limitation.
In one embodiment, press welding device can be Macromolecular diffusion welding machine.Macromolecular diffusion welding machine is in vacuum environment
Under, the face of weld of a variety of substances to be welded is contacted with each other under certain temperature and pressure, by micro-plastic deformation or passes through weldering
Junction generates micro liquid phase and expands the physical contact of welding surface, then the continuous diffusion that the atom through the long period is mutual,
It interpenetrates, a kind of welding equipment of Lai Shixian metallurgical bonding is widely used in the industries such as electric power, chemical industry, smelting, main to produce
The bus telescoping section that industry is badly in need of and the conductive strips product that is flexible coupling.It should be appreciated that the embodiment of the present invention can be answered according to actual
Different press welding devices is chosen with scene, as long as selected press welding device can be realized the pressure welding in the embodiment of the present invention and melt
Closing operation, the embodiment of the present invention for press welding device concrete type and model without limitation.
Fig. 3 show another embodiment of the present invention provides a kind of battery connecting piece pressure welding fusion device structural representation
Figure.As shown in figure 3, above-mentioned pressure welding fusion device can further comprise: the temperature detection device 5 being set on press welding device 2 is used
In the temperature of real-time detection connector.The temperature of the press welding device fed back by press welding device and the temperature of connector are poor
Not, therefore, if going the control parameter during adjustment pressure welding to certainly exist certain mistake according to the temperature that press welding device is fed back
Difference, in order to improve the precision of the control parameter during pressure welding, temperature sensing dress is arranged in the embodiment of the present invention on press welding device
It sets, comes the temperature of connector in real-time detection pressure welding fusion process, and the temperature accurate temperature controlling obtained according to detection, to guarantee to press
Weld the yields of fusion.
In one embodiment, temperature detection device 5 may include infrared detecting set.It should be appreciated that the embodiment of the present invention can
To choose different temperature detection devices according to actual application scenarios, as long as selected temperature detection device can be real-time
Detect the temperature of the weld of connector, the embodiment of the present invention to the concrete type of temperature detection device without limitation.
Fig. 4 show a kind of structural schematic diagram of battery connecting piece of one embodiment of the invention offer.As shown in figure 4, even
The main body 11 that is flexible coupling of fitting 1 may include at least one layer of aluminium foil or at least one layer of copper foil, first be flexible coupling accessory body 121 may include to
Few one layer of nickel foil, second accessory body 122 that is flexible coupling may include at least one layer of nickel foil.
In order to improve the flexible to guarantee its damping effect of connector as far as possible, the main body that is flexible coupling in the embodiment of the present invention can be with
It is one or more layers structure, first accessory body that is flexible coupling can be one or more layers structure, and second accessory body that is flexible coupling is also possible to one
Layer or multilayered structure.It should be appreciated that merely exemplary giving is flexible coupling main body for three-layered node in the attached drawing of the embodiment of the present invention
Structure, first are flexible coupling accessory body for one layer of structure, and second is flexible coupling accessory body for one layer of structure, but the embodiment of the present invention can basis
The demand selection of practical application scene be flexible coupling the number of plies of main body, first be flexible coupling the number of plies of accessory body, second be flexible coupling accessory body
The number of plies is any combination, the embodiment of the present invention includes but be not limited to the structure.
In one embodiment, each layer of aluminium foil with a thickness of 0.05mm-0.2mm；Each layer of copper foil with a thickness of
0.035mm-0.3mm；Each layer of nickel foil with a thickness of 0.1mm-0.15mm.
Aluminium foil/copper foil thickness effect welding effect, aluminium foil/copper foil is thinner, is easier to be oxidized during pressure welding,
Aluminium foil/copper foil surface is all oxidized to aluminium oxide/copper, and not only influencing pressure welding bonding force also influences electric conductivity；And aluminium foil/copper foil
It is thicker, be easier to be broken during pressure welding, thickness provided in this embodiment both can guarantee the bonding force or not of pressure welding
Phenomena such as layering, fracture occurs.
Fig. 5 show another embodiment of the present invention provides a kind of battery connecting piece pressure welding fusion device structural representation
Figure.As shown in figure 5, the pressure welding fusion device further comprises the control device 6 being electrically connected with press welding device 2, in pressure welding
In fusion process, the pressure welding temperature, pressure welding pressure and pressure welding time of press welding device 2 can control.Control device passes through control
The parameters such as pressure welding temperature, pressure welding pressure, that is, pressure welding time of the press welding device in pressure welding fusion process, to guarantee pressure welding fusion
It goes on smoothly, improves the yields of pressure welding fusion.
In one embodiment, if the main body 11 that is flexible coupling is aluminium foil, pressure welding temperature can be 550 DEG C -590 DEG C；If soft company
Connect main body 11 be copper foil when, pressure welding temperature can be 680 DEG C -980 DEG C.
Pressure welding temperature is the transient temperature in the pressure welding face of connector, which can be detected by above-mentioned temperature detection device
It arrives.When pressure welding temperature is too low, the activity for the atom in connector material being bonded is lower, i.e., the difficulty merged between unlike material
Spend larger, and pressure welding is when the temperature is excessively high, and the connector material being bonded, which may be melted, to be burnt, thus cannot achieve pressure welding, because
This, in order to realize the operation of pressure welding fusion, given the range of pressure welding temperature in the embodiment of the present invention, to guarantee that pressure welding fusion exists
It is smoothly completed in the state of optimal.Since the fusion temperature of aluminium is 660.4 DEG C, pressure welding temperature is set in 550 DEG C -590 DEG C,
At 550 DEG C -590 DEG C, aluminium is also unfused, and aluminium atom is in excitation state, reach can with nickel pressure welding merge state, solve aluminium and
Two kinds of metals of nickel merge the problem more than difficult point, it is preferable that pressure can be set in the embodiment of the present invention since melt temperature difference is big
Welding temperature is 550 DEG C, 560 DEG C, 575 DEG C, 580 DEG C, 590 DEG C etc..The fusion temperature of copper is 1083.4 DEG C, and pressure welding temperature is set
At 680 DEG C -980 DEG C, it is ensured that copper crystal lattice and nickel lattice preferably merge during pressure welding, and removing is de- after effectively solving welding
The problem of falling, improve yields, it is preferable that can be set in the embodiment of the present invention pressure welding temperature as 680 DEG C, 780 DEG C, 800 DEG C,
900 DEG C, 980 DEG C etc..It should be appreciated that the above-mentioned pressure welding temperature value enumerated is battery connecting piece pressure provided by the embodiment of the present invention
Weldering fusing device applies the optimal pressure welding temperature value under different application scenarios, tool of the embodiment of the present invention for pressure welding temperature
Body value is without limitation.
In one embodiment, before pressure welding mixing operation, connector 1 can be heated to preheating temperature by press welding device 2.
When the main body 11 that is flexible coupling of connector 1 is aluminium foil, preheating temperature can be set greater than 480 DEG C.Before pressure welding mixing operation
Connector (when the main body that is especially flexible coupling is aluminium foil) is preheated to a preset preheating temperature value in advance, to prevent connector
It is locally burnt by instantaneous big heat in lower temperature, to guarantee the pressure welding mixing operation of realization connector.
In one embodiment, the number of plies of aluminium foil or copper foil may include 8 layers -50 layers, the size to pressure surface of aluminium foil or copper foil
It may include 12mm × 20mm-60mm × 60mm.
For example, connector can be the aluminium foil of 8 layers of 0.1mm thickness and the nickel foil of 2 layers of 0.1mm thickness；Or 50 layers of 0.2mm are thick
The nickel foil of aluminium foil and 2 layers of 0.15mm thickness；Or 20 layers of 0.035mm thickness copper foil and 2 layers of 0.1mm thickness nickel foil；Or 35 layers
The copper foil of 0.3mm thickness and 2 layers of 0.15mm thickness, it being understood, however, that be flexible coupling main body and the accessory body component that is flexible coupling of connector
The selection of thickness and the number of plies, as long as meeting the stability of bond technology, be flexible coupling master of the embodiment of the present invention to connector
The specific thickness and the number of plies of body and the accessory body component that is flexible coupling are without limitation.
Aluminium foil/copper foil number of plies and thickness joint effect welding effect, each layer of aluminium foil/copper foil thickness is thicker, and aluminium foil/
The copper foil number of plies is more, and welding difficulty is bigger, and pressure welding fusion back part is easy to appear the phenomenon that layering falls off, and each layer of aluminium
Foil/copper foil thickness is thinner, and aluminium foil/copper foil number of plies is fewer, since pressure extrusion is easily broken off during pressure welding, the present embodiment
Aluminium foil/copper foil the number of plies and thickness of offer can fill the bonding force for guaranteeing to be flexible coupling between main body and the accessory body component that is flexible coupling.
In one embodiment, pressure welding pressure can be 2MPa-6MPa, wherein pressure welding pressure respectively with aluminium foil or copper foil
The number of plies and to pressure surface size be positively correlated.It wherein, is be flexible coupling main body and the needs that accessory body component fits that are flexible coupling to pressure surface
Carry out the cross section at pressure welding position.
When pressure welding pressure is too small, the effect (such as fusion degree) that will lead to pressure welding fusion is poor, and works as pressure welding pressure mistake
When big, it will lead to connector and damaged or deformation occurs because pressure is excessive, in order to guarantee the effect and not of pressure welding fusion
Connector is damaged, the embodiment of the present invention is given above-mentioned pressure welding pressure limit, to guarantee pressure welding fusion in the state of optimal
It smoothly completes.Preferably, pressure welding pressure can be 2Mpa, 3.5Mpa, 5Mpa, 6Mpa, it should be understood that the above-mentioned pressure welding pressure enumerated
Force value is applied optimal under different application scenarios for battery connecting piece pressure welding fusing device provided by the embodiment of the present invention
Pressure welding pressure value, the embodiment of the present invention for pressure welding pressure occurrence without limitation.Wherein, pressure welding pressure can be set by pressure welding
The control of the pressure control device such as pressure sensor in standby, the present invention to the specific control method of welding pressure without limitation.
In one embodiment, the pressure welding time can be 15s-1min, wherein the pressure welding time layer with aluminium foil or copper foil respectively
It counts and the size to pressure surface is positively correlated.
When the pressure welding time is too short, the effect (such as fusion degree) that will lead to pressure welding fusion is poor, and works as pressure welding time mistake
When long, it will lead to connector damage or deformation occurs, therefore, in order to guarantee the effect of pressure welding fusion and not damage connector, this
Inventive embodiments are given above-mentioned pressure welding time range, to guarantee that pressure welding fusion smoothly completes in the state of optimal.It is preferred that
Ground, pressure welding time can be 15s, 25s, 40s, 1min, it should be understood that the above-mentioned pressure welding time enumerated is institute of the embodiment of the present invention
The battery connecting piece pressure welding fusing device of offer applies the optimal pressure welding time under different application scenarios, the embodiment of the present invention
For the pressure welding time occurrence without limitation.
Wherein, which can be controlled by such as time-controlling arrangement, and the present invention is to weld interval specific controlling party
Formula does not limit this.
Welding pressure and aluminium foil/copper foil number of plies, aluminium foil/copper foil wait for that the size of pressure surface is positively correlated.Weld interval respectively with aluminium
Foil/copper foil number of plies and aluminium foil/copper foil wait for that the size of pressure surface is positively correlated.The number of plies is more, welding pressure it is bigger with weld interval more
Long, size with pressure is bigger, and welding pressure is bigger longer with weld interval；And the number of plies is fewer, welding pressure is smaller and weld interval
Shorter, size with pressure is bigger, and welding pressure is bigger shorter with weld interval.
For example, if connector includes the aluminium foil of 8 layers of 0.1mm thickness and the nickel foil of 2 layers of 0.15mm thickness, to pressure surface having a size of 12mm
× 20mm waits for that the size of pressure surface determines pressure welding pressure position 2MPa according to the aluminium foil number of plies and aluminium foil, and the pressure welding time is 15s.
If connector includes the aluminium foil of 50 layers of 0.2mm thickness and the nickel foil of 2 layers of 0.15mm thickness, to pressure surface having a size of 60mm ×
60mm waits for that the size of pressure surface determines pressure welding pressure position 6MPa according to the aluminium foil number of plies and the aluminium foil, and the pressure welding time is 1min.
If connector includes the copper foil of 20 layers of 0.035mm thickness and the nickel foil of 2 layers of 0.15mm thickness, to pressure surface having a size of 12mm ×
20mm waits for that the size of pressure surface determines pressure welding pressure position 2MPa according to the copper foil number of plies and copper foil, and the pressure welding time is 15s.
If connector includes the copper foil of 35 layers of 0.3mm thickness and the nickel foil of 2 layers of 0.15mm thickness, to pressure surface having a size of 60mm ×
60mm waits for that the size of pressure surface determines pressure welding pressure position 6MPa according to the copper foil number of plies and copper foil, and the pressure welding time is 1min.
It should be appreciated that the embodiment of the present invention can select to be flexible coupling in connector according to the demand of specific application scenarios
The thickness and the number of plies of main body and the accessory body component that is flexible coupling, as long as being flexible coupling main body and the accessory body group that is flexible coupling in selected connector
The thickness and the number of plies of part meet the stability of bond technology, and the embodiment of the present invention is to main body and the soft company of being flexible coupling in connector
The specific thickness and the number of plies for connecing accessory body component are without limitation.
By setting pressure welding temperature, pressure welding pressure and the pressure welding time of the pressure welding process, realize that disposable pressure welding is melted
It closes, while effectively improving the bonding force of pressure welding fusion component, and pressure welding fusion device through the embodiment of the present invention is disposable
The fused connector of pressure welding can bear drawing stress, have good bonding force, meet connector to resistance stress and delay
The demand of blow stress, can be with industrial volume production.
Fig. 6 show a kind of structural schematic diagram of battery connecting piece generating device of one embodiment of the invention offer.Such as Fig. 6
Shown, which includes: battery connecting piece pressure welding fusion device any one of as above；It is set to pressure welding
The stamping device 7 of the subsequent work stations of fusion device, for carrying out punching press to the fused connector of pressure welding 1, connector 1 is fallen in punching press
Boundary in due to pressure welding merge and squeeze bulging at the inadequate position of bonding force；And it is set to the subsequent work of stamping device 7
The burnishing device 8 of position, for being polished to the connector 1 after punching press.
By the way that constant-current stabilizer is arranged, guarantees that the electric current of input press welding device is stationary value, avoid the moment of power supply device
Output electric current is excessive and leads to the problem of burning lower melting-point aluminium foil, to solve the pressure of the battery connecting piece using aluminium foil
Integration technology problem is welded, and stamping device and burnishing device is combined to complete subsequent handling, realizes the battery connection using aluminium foil
The production and application of part.
Fig. 7 show a kind of flow chart of battery pack connector production method of another embodiment of the present invention offer.Such as
Shown in Fig. 7, above-mentioned battery connecting piece can produce by the following method:
Step 201: stacking and place be flexible coupling main body 11 and the accessory body component 12 that is flexible coupling, wherein be flexible coupling accessory body component 12
It is flexible coupling accessory body 122 including being respectively placed in the first of the two sides up and down for the main body 11 that the is flexible coupling accessory body 121 and second that is flexible coupling.
Specifically, step 201 is realized using above-mentioned steps 101, and same steps are not repeating.
Step 202: main body 11 will be flexible coupling using disposable pressure welding and 12 pressure welding of accessory body component that is flexible coupling permeates
It is whole.
Specifically, step 202 is realized using above-mentioned steps 201, and same steps are not repeating.
Step 203: punching press carried out to the fused connector of pressure welding 1, punching press fall in the boundary of connector 1 due to pressure welding and
Squeeze bulging at the inadequate position of bonding force.
There are certain positions bonding force occurs due to squeezing swollen during pressure welding for the fused global facility boundary of pressure welding
These position punching presses are fallen using punching press, can not only improve welding assembly adhesion stability while can also reach by inadequate phenomenon
Smooth neat purpose.
Step 204: the connector after punching press is polished.
It should be appreciated that being polished to the connector after punching press, to reach the oxide layer formed in removal welding process, oil
Dirty and burr, the present invention to specific polishing process without limitation.
Oxide layer, greasy dirt and the burr formed in removal welding process reduces while improving connector flatness and connects
Fitting resistance effectively reduces electric quantity consumption in battery use process.
Fig. 8 show another embodiment of the present invention provides a kind of battery connecting piece generating device structural schematic diagram.Such as
Shown in Fig. 8, which may also include that the apparatus for bending 9 for being set to the subsequent work stations of burnishing device 8, for the company after polishing
Fitting 1 carries out bending to predetermined angle.
By the way that constant-current stabilizer is arranged, guarantees that the electric current of input press welding device is stationary value, avoid the moment of power supply device
Output electric current is excessive and leads to the problem of burning lower melting-point aluminium foil, to solve the pressure of the battery connecting piece using aluminium foil
Weld integration technology problem, and combine apparatus for bending complete subsequent handling, realize using the battery connecting piece of aluminium foil production and
Using.
Fig. 9 show a kind of flow chart of battery pack connector production method of another embodiment of the present invention offer.Such as
Shown in Fig. 9, following steps can be increased after above-mentioned steps 204 and obtain above-mentioned battery connecting piece:
Step 205: the connector after polishing is subjected to bending to predetermined angle.
It should be appreciated that predetermined angle is angle needed for two batteries of connection, or really according to connector application scenarios institute
Surely the angle needed, as long as bending technique can satisfy the connection requirement under different scenes, the present invention is to specific preset angle
Degree is without limitation.
In one embodiment, above-mentioned pressure welding fusion device, stamping device, burnishing device and apparatus for bending can be for according to adding
The processing unit (plant) that work process is set gradually, and pressure welding fusion device, stamping device, burnishing device and apparatus for bending can pass through
The transmitting devices such as transmission crawler belt are sequentially connected, to realize the automation transmission of battery connecting piece.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, made any modification, equivalent replacement etc. be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of battery connecting piece pressure welding fusion device characterized by comprising
Press welding device merges the connector for pressure welding；
The power supply device being electrically connected with the press welding device is used to provide the described electric energy required for press welding device；And
The constant-current stabilizer being electrically connected with the output end of the power supply device and the press welding device, for defeated to the press welding device
Stable electric current out.
2. equipment according to claim 1, which is characterized in that the constant-current stabilizer includes inversion rectifier.
3. equipment according to claim 1, which is characterized in that further comprise:
The temperature detection device being set on the press welding device, the temperature for connector described in real-time detection.
4. equipment according to claim 1, which is characterized in that the press welding device includes Macromolecular diffusion welding machine.
5. equipment according to claim 1, which is characterized in that further comprise:
The control device being electrically connected with the press welding device, for controlling the pressure of the press welding device in pressure welding fusion process
Weld temperature, pressure welding pressure and pressure welding time.
6. equipment according to claim 5, which is characterized in that when the connector includes aluminium foil, the pressure welding temperature
It is 550 DEG C -590 DEG C；Or when the connector includes copper foil, the pressure welding temperature is 680 DEG C -980 DEG C.
7. equipment according to claim 5, which is characterized in that the pressure welding pressure is 2MPa-6MPa, wherein the pressure
Size to pressure surface of the pressure respectively with the number of plies of the connector and the connector is welded to be positively correlated.
8. equipment according to claim 5, which is characterized in that the pressure welding time is 15s-1min, wherein the pressure welding
Size to pressure surface of the time respectively with the number of plies of the connector and the connector is positively correlated.
9. a kind of battery pack connector production equipment characterized by comprising
Such as battery connecting piece pressure welding fusion device described in any item of the claim 1 to 8；
It is set to the stamping device of the subsequent work stations of the pressure welding fusion device, is used for the connection fused to the pressure welding
Part carries out punching press, punching press fall in the boundary of the connector due to pressure welding is merged and squeeze bulging at the inadequate position of bonding force；
And
It is set to the burnishing device of the subsequent work stations of the stamping device, for polishing to the connector after punching press.
10. according to the method described in claim 9, it is characterized in that, the equipment further include:
It is set to the apparatus for bending of the subsequent work stations of the burnishing device, is arrived for the connector after polishing to be carried out bending
Predetermined angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811623861.XA CN109759688A (en) | 2018-12-28 | 2018-12-28 | A kind of battery connecting piece pressure welding fusion device and production equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811623861.XA CN109759688A (en) | 2018-12-28 | 2018-12-28 | A kind of battery connecting piece pressure welding fusion device and production equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109759688A true CN109759688A (en) | 2019-05-17 |
Family
ID=66451705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811623861.XA Pending CN109759688A (en) | 2018-12-28 | 2018-12-28 | A kind of battery connecting piece pressure welding fusion device and production equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109759688A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115020925A (en) * | 2022-07-11 | 2022-09-06 | 合肥国轩高科动力能源有限公司 | Assembly method and application of multilayer composite current collector |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101141009A (en) * | 2006-09-07 | 2008-03-12 | 日立车辆能源株式会社 | Assembled battery |
| CN201161330Y (en) * | 2008-01-09 | 2008-12-10 | 东莞市特龙金科能源科技有限公司 | Impulse current spot welder |
| CN201353684Y (en) * | 2009-02-20 | 2009-12-02 | 李朝文 | GKH-type high-polymer diffusion welder |
| CN201838629U (en) * | 2010-05-20 | 2011-05-18 | 东莞市易升电池有限公司 | Welding and positioning fixture of battery shell |
| CN201994368U (en) * | 2011-03-21 | 2011-09-28 | 合肥国轩高科动力能源有限公司 | Copper-nickel composite connecting piece for connecting lithium battery cores |
| CN102275038A (en) * | 2010-06-08 | 2011-12-14 | 佑旸股份有限公司 | High-speed hot press and application method thereof |
| CN204171529U (en) * | 2014-09-04 | 2015-02-25 | 南通东鹏焊接设备有限公司 | A kind of energy-conserving and environment-protective inverse type Macromolecular diffusion welding machine |
| CN106058135A (en) * | 2015-04-15 | 2016-10-26 | 株式会社日立金属新材料 | Clad material for battery negative electrode lead material, method of manufacturing clad material for battery negative electrode lead material and battery |
| CN206040793U (en) * | 2016-09-19 | 2017-03-22 | 漳州万宝能源科技有限公司 | Compound area of copper nickel that high magnification battery used |
| CN106624326A (en) * | 2016-12-14 | 2017-05-10 | 李朝文 | Copper-aluminum dual-purpose molecular diffusion welding machine and control system and control method thereof |
| CN107962288A (en) * | 2016-10-20 | 2018-04-27 | 宁波市镇海铁人焊接设备厂 | Electrical resistance weld controller |
| CN207624789U (en) * | 2017-12-20 | 2018-07-17 | 东莞市金石电气科技有限公司 | A kind of battery pack is flexible coupling piece |
| CN108417768A (en) * | 2018-04-24 | 2018-08-17 | 黄奎 | A kind of multicomponent composition metal band for power battery conductive connecting piece |
| CN108838505A (en) * | 2018-07-25 | 2018-11-20 | 昆山恩能聚新能源科技有限公司 | A kind of macromolecule aluminum diffusing nickel welding method |
| CN209716999U (en) * | 2018-12-28 | 2019-12-03 | 天津锦泰勤业精密电子有限公司 | A kind of battery connecting piece pressure welding fusion device and production equipment |
-
2018
- 2018-12-28 CN CN201811623861.XA patent/CN109759688A/en active Pending
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101141009A (en) * | 2006-09-07 | 2008-03-12 | 日立车辆能源株式会社 | Assembled battery |
| CN201161330Y (en) * | 2008-01-09 | 2008-12-10 | 东莞市特龙金科能源科技有限公司 | Impulse current spot welder |
| CN201353684Y (en) * | 2009-02-20 | 2009-12-02 | 李朝文 | GKH-type high-polymer diffusion welder |
| CN201838629U (en) * | 2010-05-20 | 2011-05-18 | 东莞市易升电池有限公司 | Welding and positioning fixture of battery shell |
| CN102275038A (en) * | 2010-06-08 | 2011-12-14 | 佑旸股份有限公司 | High-speed hot press and application method thereof |
| CN201994368U (en) * | 2011-03-21 | 2011-09-28 | 合肥国轩高科动力能源有限公司 | Copper-nickel composite connecting piece for connecting lithium battery cores |
| CN204171529U (en) * | 2014-09-04 | 2015-02-25 | 南通东鹏焊接设备有限公司 | A kind of energy-conserving and environment-protective inverse type Macromolecular diffusion welding machine |
| CN106058135A (en) * | 2015-04-15 | 2016-10-26 | 株式会社日立金属新材料 | Clad material for battery negative electrode lead material, method of manufacturing clad material for battery negative electrode lead material and battery |
| CN206040793U (en) * | 2016-09-19 | 2017-03-22 | 漳州万宝能源科技有限公司 | Compound area of copper nickel that high magnification battery used |
| CN107962288A (en) * | 2016-10-20 | 2018-04-27 | 宁波市镇海铁人焊接设备厂 | Electrical resistance weld controller |
| CN106624326A (en) * | 2016-12-14 | 2017-05-10 | 李朝文 | Copper-aluminum dual-purpose molecular diffusion welding machine and control system and control method thereof |
| CN207624789U (en) * | 2017-12-20 | 2018-07-17 | 东莞市金石电气科技有限公司 | A kind of battery pack is flexible coupling piece |
| CN108417768A (en) * | 2018-04-24 | 2018-08-17 | 黄奎 | A kind of multicomponent composition metal band for power battery conductive connecting piece |
| CN108838505A (en) * | 2018-07-25 | 2018-11-20 | 昆山恩能聚新能源科技有限公司 | A kind of macromolecule aluminum diffusing nickel welding method |
| CN209716999U (en) * | 2018-12-28 | 2019-12-03 | 天津锦泰勤业精密电子有限公司 | A kind of battery connecting piece pressure welding fusion device and production equipment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115020925A (en) * | 2022-07-11 | 2022-09-06 | 合肥国轩高科动力能源有限公司 | Assembly method and application of multilayer composite current collector |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103078078B (en) | Stacked battery | |
| US7727672B2 (en) | Battery, method of manufacturing the same, method of manufacturing weldment, and pedestal | |
| CN107464909A (en) | The welding method of battery modules | |
| JP2013099779A (en) | Heater tip, junction device, junction method and connection structure between thin wire and terminal | |
| US9289842B2 (en) | Structure and method of bonding copper and aluminum | |
| EP2614913A1 (en) | Welding method and welding device | |
| KR20080071518A (en) | Projection weld and method for creating the same | |
| CN103551721A (en) | Method for preparing joint made of dissimilar material by firstly ultrasonically prefabricating and secondly welding transition belt | |
| CN103917320A (en) | Method of joining or repairing superalloy structures using projection resistance brazing : corresponding superalloy component | |
| WO2014021080A1 (en) | Electronic-device production method | |
| CN209716999U (en) | A kind of battery connecting piece pressure welding fusion device and production equipment | |
| CN105269161A (en) | Current schedule for optimized reaction metallurgical joining | |
| CN109759688A (en) | A kind of battery connecting piece pressure welding fusion device and production equipment | |
| CN105458434B (en) | A kind of lead welding procedure for semiconductor power device encapsulation | |
| CN104625299A (en) | Tin soldering jig and laser tin soldering method | |
| CN104607783A (en) | Welding Device for Welding a Connecting Portion and Method for Welding the Connecting Portion with the Welding Assembly | |
| CN110508958A (en) | Powerful reaction metallurgical, bond | |
| CN207840337U (en) | A kind of glass terminal welder | |
| CN204695967U (en) | Laminated ceramic electronic building brick device | |
| CN212599791U (en) | Paste-free brazing combined solder | |
| KR101124964B1 (en) | Method for connecting between cathod lead or anode lead of secondary battery and external element | |
| US10632571B2 (en) | Metal joining using ultrasonic and reaction metallurgical welding processes | |
| CN207013862U (en) | Diffusion welding machine | |
| JP7282009B2 (en) | Welding device and manufacturing method of joining member | |
| CN208147121U (en) | A kind of resistance spot welding structure of steel and aluminium alloy |
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 | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20210127 Address after: 313100 workshop No.4, intersection of Taihu Avenue and jingsan Road, Changxing County, Huzhou City, Zhejiang Province Applicant after: ZHEJIANG JINTAI ELECTRONICS Co.,Ltd. Address before: No.16 Xin'an Road, West District, Binhai New Area Economic and Technological Development Zone, Tianjin 300462 Applicant before: JINTECH (TIANJIN) PRECISION & ELECTRONIC Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190517 |
|
| RJ01 | Rejection of invention patent application after publication |