CN109962280A - Battery cell shaping device - Google Patents
Battery cell shaping device Download PDFInfo
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- CN109962280A CN109962280A CN201711440044.6A CN201711440044A CN109962280A CN 109962280 A CN109962280 A CN 109962280A CN 201711440044 A CN201711440044 A CN 201711440044A CN 109962280 A CN109962280 A CN 109962280A
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- Prior art keywords
- shaping
- sizing die
- battery core
- die group
- core apparatus
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- 238000007493 shaping process Methods 0.000 title claims abstract description 190
- 230000007246 mechanism Effects 0.000 claims abstract description 114
- 230000033001 locomotion Effects 0.000 claims abstract description 20
- 230000001360 synchronised effect Effects 0.000 claims abstract description 10
- 238000004513 sizing Methods 0.000 claims description 117
- 238000003825 pressing Methods 0.000 claims description 52
- 239000004033 plastic Substances 0.000 claims description 32
- 229920003023 plastic Polymers 0.000 claims description 32
- 230000014759 maintenance of location Effects 0.000 claims description 27
- 238000012360 testing method Methods 0.000 claims description 26
- 238000009413 insulation Methods 0.000 claims description 18
- 230000005540 biological transmission Effects 0.000 claims description 15
- 239000011159 matrix material Substances 0.000 claims description 15
- 230000001464 adherent effect Effects 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 abstract 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 14
- 238000000034 method Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 9
- 238000002407 reforming Methods 0.000 description 8
- 230000005611 electricity Effects 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000007731 hot pressing Methods 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N Formic acid Chemical class OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003447 ipsilateral effect Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000003319 supportive effect Effects 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0481—Compression means other than compression means for stacks of electrodes and separators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The application relates to a battery cell shaping device. The battery cell shaping device comprises a base body, a plurality of shaping modules, a linkage mechanism and a driving mechanism; the shaping modules are sequentially arranged along the shaping direction, the linkage mechanism is connected with each shaping module, and the driving mechanism is connected with the linkage mechanism or the shaping modules, so that the shaping modules generate synchronous extrusion motion. In the scheme, because the battery cell shaping device is provided with a plurality of shaping stations, a plurality of battery cells can be shaped simultaneously, and the shaping device improves the space utilization rate of the battery and the shaping efficiency of the battery cells.
Description
Technical field
This application involves energy storage device processing technique field more particularly to a kind of battery core apparatus for shaping.
Background technique
With the development of modern society, various smart machines (mobile phone, laptop, plate, electric vehicle etc.) be there has been
It is widely applied.At the same time, demand of the client to heavy-duty battery is also higher and higher.By taking lithium battery as an example, due to lithium battery
The advantages such as energy density height, long service life, green non-pollution, security performance height be widely used in consumer electronics product and
Electric car field.
For battery, bigger space utilization rate how is realized, be always the important goal of battery structure design, be
The important factor in order of battery energy density can be improved.
Summary of the invention
This application provides a kind of battery core apparatus for shaping, are able to ascend the space utilization rate of battery, while improving battery core
Shaping efficiency.
This application provides a kind of battery core apparatus for shaping, comprising:
Matrix；
Multiple sizing die groups；
Linkage mechanism；
Driving mechanism；
Wherein, each sizing die group is successively arranged along shaping direction, the linkage mechanism and each sizing die group
Connection,
The driving mechanism is connect with the linkage mechanism or the sizing die group, so that each sizing die group generates
Synchronous compressional movement.
Optionally, the driving mechanism is connect with the sizing die group,
The linkage mechanism includes multiple parallel four-bar linkages successively arranged along the shaping direction, each described flat
Row four-bar mechanism is connect with two adjacent sizing die groups respectively,
The two neighboring parallel four-bar linkage is articulated with same articulated shaft, and is articulated with four companies of same articulated shaft
Bar is arranged to integral structure two-by-two.
Optionally, the driving mechanism includes power output portion and transmission connection portion,
The both ends in the transmission connection portion are connect with the sizing die group respectively, between intermediate position and the sizing die group
It is spaced,
The output shaft in the power output portion is inserted in the interval along the shaping direction, and the end of the output shaft
Holding has the limiting structure for preventing the output shaft and the transmission connection portion to be separated.
It optionally, further include pressure sensor, the pressure sensor is set to the sizing die group, in the shaping row
Cheng Zhong, the limiting structure and the pressure sensor contacts.
It optionally, further include plastic precision retention groove rail mechanism, the plastic precision retention groove rail mechanism corresponds to each institute
Sizing die group is stated to be arranged alternately on the shaping direction.
Optionally, the plastic precision retention groove rail mechanism includes sliding rail and groove portion, and the sliding rail and the groove portion are along institute
Shaping direction to be stated to be slidably matched, the sliding rail is connect with described matrix, and the groove portion is connect with the sizing die group,
The length of fit of the groove portion and the sliding rail is the sizing die group at 1/2 times of the maximum length that this side up
~1 times.
Optionally, the plastic precision retention groove rail mechanism is set as two groups, and is distributed in the sizing die group
Two opposite sides.
Optionally, the sizing die group includes shaping pressing plate, offers vacuum breaker stomata on the shaping pressing plate.
Optionally, the shaping pressing plate is hot shaping pressing plate, and corresponding each shaping station is arranged in pairs.
Optionally, the outer surface of the shaping pressing plate is provided with insulation adherent layer.
It optionally, further include side sizing die group, the side sizing die group generates synchronous compressional movement, institute along side shaping direction
It is different from the shaping direction to state side shaping direction.
It optionally, further include insulation testing mechanism, the insulation testing mechanism includes two test contacts,
The insulation testing mechanism is connect with the sizing die group, so that described two test contacts are in the sizing die
It is contacted respectively with the anode ear of battery core with negative electrode lug in the shaping stroke of group.
It optionally, further include lockable mechanism, the lockable mechanism is arranged to be in inoperative in the battery core apparatus for shaping
Cooperate locking with the linkage mechanism when state,
The lockable mechanism includes closing piece, the linkage mechanism include as more connecting rods it is hinged made of link mechanism, respectively
The connecting rod includes across the hinged end of articulated shaft, and the closing piece and hinged end limit cooperate.
Technical solution provided by the present application can achieve it is following the utility model has the advantages that
This application provides a kind of battery core apparatus for shaping, wherein multiple sizing die groups are successively arranged along shaping direction, are being driven
Under the drive of motivation structure, linkage mechanism guides each sizing die group to generate synchronous compressional movement, since battery core apparatus for shaping is with more
The shaping simultaneously of multiple battery cores may be implemented in a shaping station, on the one hand improves the space utilization rate of battery, on the other hand improves
The shaping efficiency of battery core.
It should be understood that the above general description and the following detailed description are merely exemplary, this can not be limited
Application.
Detailed description of the invention
Fig. 1 is the schematic diagram of battery core apparatus for shaping provided by the embodiments of the present application；
Fig. 2 is the rearview of battery core apparatus for shaping provided by the embodiments of the present application；
Fig. 3 is the main view of battery core apparatus for shaping provided by the embodiments of the present application；
Fig. 4 is the main view of battery core apparatus for shaping provided by the embodiments of the present application；
Fig. 5 is the schematic diagram of sizing die group provided by the embodiments of the present application；
Fig. 6 is the decomposition view of insulation testing mechanism provided by the embodiments of the present application；
Fig. 7 is the schematic diagram of insulation testing mechanism provided by the embodiments of the present application；
Fig. 8 is the schematic diagram of lockable mechanism provided by the embodiments of the present application.
Appended drawing reference:
1- matrix；
100- pedestal；
102- support frame；
102a- through-hole；
102aa- inner wall；
102ab- inner wall；
2- sizing die group；
200- mould group pedestal；
202- shaping pressing plate；
202a- vacuum breaker stomata；
204- connecting plate；
3- linkage mechanism；
300- parallel four-bar linkage；
300a- articulated shaft；
300b- connecting rod；
300c- connecting rod；
300d- connecting rod；
300e- connecting rod；
300bd- unitary link；
300ce- unitary link；
4- driving mechanism；
400- power output portion；
400a- output shaft；
400b- limiting structure；
402- transmission connection portion；
5- pressure sensor；
6- plastic precision retention groove rail mechanism；
600- sliding rail；
602- groove portion；
The side 8- sizing die group；
The side 800- shaping pressing plate；
802- driving assembly；
804- linear guide；
10- insulation testing mechanism；
1002- test contact；
10020- guide rod；
10022- pressure spring；
10024- collets；
The contact 10026-；
10028- linear bearing；
1004- cylinder；
1006- clamp ring；
1008- fixing piece；
12- lockable mechanism；
1202- closing piece；
1202a- groove；
1204- cylinder；
1206- sliding rail.
The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the application
Example, and together with specification it is used to explain the principle of the application.
Specific embodiment
The application is described in further detail below by specific embodiment and in conjunction with attached drawing.
It should be noted that the nouns of locality such as "upper", "lower" described in the embodiment of the present application, "left", "right" are with attached drawing
Shown in angle come what is be described, should not be construed as the restriction to the embodiment of the present application.In addition, within a context, it is also necessary to
Understand, when mentioning an element and being connected to another element "upper" or "lower", can not only be connected directly between another
One element "upper" perhaps "lower" can also be indirectly coupled to by intermediary element another element "upper" or " under.
This application provides a kind of battery core apparatus for shaping, which can provide extruding force to battery core, to eliminate electricity
The redundancy gap of core inner, to reduce the occupied space of battery core, to promote the energy density of battery.
Specifically, as shown in Figure 1 to Figure 2, battery core apparatus for shaping include matrix 1, multiple sizing die groups 2, linkage mechanism 3 with
And driving mechanism 4.Wherein, matrix 1 is used as supportive body, can mention for sizing die group 2, linkage mechanism 3 and driving mechanism 4 etc.
For installation foundation or support.
Matrix 1 includes pedestal 100 and stands on two support frames 102 on the pedestal 100, each support frame 102 by
A pair of of C-shaped bracket is spliced, the opening of C-shaped bracket toward each other, the support frame 102 being spliced at central part there are
Through-hole 102a, two support frames 102 are arranged in parallel on pedestal 100, and are spaced a predetermined distance between the two.It should be understood that
The shape and structure of matrix 1 are not limited only to this.
Multiple sizing die groups 2 are set in the space that two support frames 102 interval is formed, and along the shaping direction (Z in Fig. 1
To) successively arrange, one is respectively formed between two neighboring sizing die group 2 for squeezing the shaping station of battery core.It is readily comprehensible,
The quantity of sizing die group 2 is more, and shaping station increases therewith, while the quantity for the battery core being shaped is also more, so,
In the case that battery core apparatus for shaping occupies same area, it can be realized simultaneously the shaping operation to multiple battery cores, improve battery
Space utilization rate and the shaping efficiency for greatly improving battery core.
In the present embodiment, the quantity of sizing die group 2 is five, so that there are four shaping works for battery core apparatus for shaping tool
Position, four battery cores can carry out shaping simultaneously, and still, the quantity of sizing die group 2 is not limited only to this, can do according to the actual situation
It reasonably selects out.
Each sizing die group 2 is connect with linkage mechanism 3 respectively, and driving mechanism 4 is connect with sizing die group 2, passes through gear
The linkage function of structure 3 can make each sizing die group 2 generate synchronous compressional movement.
" synchronous compressional movement " mentioned here not refers to the synchronization on timing node, and refers to each sizing die group 2
Linkage under the drive of driving mechanism 4.
In multiple sizing die groups 2, the sizing die group 2 positioned at the bottom can keep relatively fixed with matrix 1, that is,
It says, which is fixedly connected with matrix 1 (such as support frame 102), and in reforming process, sizing die group 2 is remained not
Dynamic, the tie point of linkage mechanism 3 and the sizing die group 2 can be used as the lower end fixed point of linkage mechanism 3.
Other each sizing die groups 2 above the sizing die group 2 of bottommost are under the guidance of linkage mechanism 3 along shaping side
It is moved to opposite matrix 1.When each sizing die group 2 of activity setting reaches respectively along the lower dead center of the stroke in shaping direction, electricity
Extruding force of the core by the sizing die group 2 from two opposite sides, is kept for the predetermined time under this extruding force, it can is realized to electricity
The shaping operation of core.
When battery core shaping, 4 output driving power of driving mechanism, the drive force sizing die group 2 is moved downward, at this point,
Linkage mechanism 3 is converted to motion state by stationary state, and each sizing die group 2 is guided to generate synchronous compressional movement, transports squeezing
In dynamic, the battery core being placed on each shaping station can be squeezed power simultaneously, and be shaped simultaneously.
It should be noted that for the shaping operation of battery core is mainly for square electric cell, square electric cell is there are six side, two
Two is opposite, and in addition to a pair of of the side for having tab to stretch out, other two pairs of sides can be by battery core apparatus for shaping shaping, to eliminate
Redundancy gap inside battery core.Above-described each sizing die group 2 can one pair of them side to battery core carry out shaping, example
Such as, along the two relative side of battery core thickness direction.
As shown in Fig. 2, linkage mechanism 3 includes the parallel―ordinal shift machine being connected between per two adjacent sizing die groups 2
Structure 300, two articulated shaft 300a of each parallel four-bar linkage 300 are connect with two adjacent sizing die groups 2 respectively, and point
Be not formed as tie point, it is each to connect after the completion of each parallel four-bar linkage 300 is connect with each sizing die group 2 in a manner described
Point is conllinear along shaping direction.
Wherein, in two adjacent parallel four-bar linkages 300, four connecting rods of same articulated shaft 300a are articulated with
300b, 300c, 300d, 300e are arranged to integral structure.Wherein, connecting rod 300b and connecting rod 300d are formed as one formula structure
Connecting rod 300bd, connecting rod 300c and connecting rod 300e are formed as one the connecting rod 300ce of formula structure, at this point, connecting rod 300bd and connecting rod
300ce is arranged in a crossed manner and hinged with articulated shaft in midpoint respectively.
It should be understood that four hinge joints due to parallel four-bar linkage have set motion profile, transmitted in power
During, deformation occurs for parallel four-bar linkage, and the angle of two neighboring connecting rod changes, and each tie point then can be in driving force
Under the action of move along shaping direction until reach predetermined position.
When using above-mentioned linkage mechanism 3, a kind of embodiment can be by the fit tolerance of articulated shaft and the axis hole of connecting rod
What is be arranged is relatively small, can thus make in the transmission process of linkage mechanism 3, and each sizing die group 2 can be along shaping
Distance substantially equal is moved in direction, to realize the mode of the equidistant shaping of each sizing die group 2.
It is selectable, can also by the fit tolerance of articulated shaft and the axis hole of connecting rod be arranged it is relatively large, for example, by using
The slightly smaller articulated shaft of diameter, at this point, there are appropriate gaps between articulated shaft and axis hole, in reforming process, articulated shaft and connecting rod
Between can be ignored without active force or active force very little, when top sizing die group 2 squeeze top layer battery core when,
The extruding force is only transmitted in each sizing die group 2, it is possible thereby to realize the mode of the isobaric shaping of each sizing die group 2.
It should be noted that, although Fig. 2 shows a kind of specific embodiments of linkage mechanism 3, still, linkage mechanism 3 is not
It is only limitted to structure shown in figure 2 above, in some other embodiment, linkage mechanism 3 can also use other changeable types
Scheme, for example, linkage mechanism 3 is using regular hexagon link mechanism etc., but correspondingly, driving mechanism 4, linkage mechanism 3 and
Connection relationship between sizing die group 2 should also do corresponding modification.
As shown in figures 1 and 3, according to an exemplary embodiment, driving mechanism 4 is installed on the top of matrix 1, that is,
Between two support frames 102, driving mechanism 4 includes power output portion 400 and transmission connection portion 402, wherein transmission connection portion 402
Both ends connect respectively with the sizing die group 2 of top layer, it is spaced between intermediate position and the sizing die group 2.
The output shaft 400a in power output portion is inserted in the interval along shaping direction, and can along shaping direction relative to
402 activity of transmission connection portion, the end of output shaft 400a have the limitation for preventing output shaft 400a and transmission connection portion 402 to be detached from
Structure 400b.
It follows that output shaft 400a pushes sizing die group in power output portion 400 along the down stroke in shaping direction
2 move downward, and do not contact with transmission connection portion 402, and being transferred to the vibration in sizing die group 2 by power output portion 400 can quilt
Substantially reduce, is conducive to improve the stability that sizing die group 2 moves in reforming process.
Power output portion 400 can use cylinder or hydraulic cylinder, and in the present embodiment, power output portion 400 is using servo electricity
Cylinder, servo electric cylinders positioning accuracy is high, and output pressure is stablized under closed-loop control system torque mode.
In addition, in order to obtain the specific value that power output portion 400 is applied to the driving force of sizing die group 2, battery core shaping
Device further includes pressure sensor 5, and pressure sensor 5 can be set to contact pressure sensor, pressure sensor setting
In the sizing die group 2 of top layer, for example, setting is formed by gap by transmission connection portion 402 and sizing die group 2, in power
In the down stroke of output section 400, limiting structure 400b is contacted with pressure sensor 5, and via pressure sensor 5 by the driving
Power is transferred to sizing die group 2, at this point, pressure sensor 5 can show the size for the driving force that power output portion 400 is exported.
It is readily comprehensible, it will cause sizing die group 2 from various vibrations and shift in movement travel, thus shadow
The shaping quality for ringing battery core, to overcome this defect, as shown in figure 4, battery core apparatus for shaping further includes plastic precision retention groove trailer
Structure 6, the plastic precision retention groove rail mechanism 6 can reduce offset of the sizing die group 2 in movement travel, improve plastic precision.
According to an exemplary embodiment, plastic precision retention groove rail mechanism 6 includes sliding rail 600 and groove portion 602, sliding rail
600 are slidably matched with groove portion 602 along shaping direction, wherein sliding rail 600 can be connect with matrix 1, and groove portion 602 can be with shaping
Mould group 2 connects, and vice versa.The swallowtail-shaped structure to match can be set into sliding rail 600 and groove portion 602.
After plastic precision retention groove rail mechanism 6 is arranged, sizing die group 2 can be in the guiding role of sliding rail 600 and groove portion 602
Lower held stationary operation, to be further ensured that the synchronization compressional movement of each sizing die group 2, so that each battery core can be born substantially
Size after the shaping of equal extruding force and acquisition same size, to improve the plastic precision and shaping quality of battery core.
Plastic precision retention groove rail mechanism 6 can also be correspondingly arranged with multiple sizing die groups 2, that is to say, that each shaping
Mould group 2 can keep the stationarity of motion process by plastic precision retention groove rail mechanism 6, to reduce offset.Wherein, respectively
Integrated structure can be set in sliding rail 600 in plastic precision retention groove rail mechanism 6, extends along shaping direction.
Specifically, with continued reference to FIG. 1, two plastic precision retention groove rail mechanisms 6 correspond to a sizing die group 2,
That is, each sizing die group 2 guarantees the stability of movement travel by two plastic precision retention groove rail mechanisms 6, and
Two plastic precision retention groove rail mechanisms 6 are distributed in the opposite sides of sizing die group 2.This scheme improves each sizing die
2 integrally-built balances of group, avoid leading to battery core shaping defect due to unbalance stress, and movement smoothness further increases, electricity
The plastic precision of core further increases.
The width dimensions (Y-direction in Fig. 1) of sliding rail 600 in each plastic precision retention groove rail mechanism 6 be arranged to
The thickness of support frame 102 is roughly the same, and so, connective stability of the sliding rail 600 on support frame 102 improves, then
The risk that sizing die group 2 shifts in reforming process further decreases.
In addition, with continued reference to FIG. 4, groove portion in the same plastic precision retention groove rail mechanism 6 includes two sections, and be spaced
Setting, this setting reduce the weight of plastic precision retention groove rail mechanism 6, are conducive on the basis of not influencing stationarity
Realize the lightweight of structure.
In the same plastic precision retention groove rail mechanism 6, on shaping direction, the length of fit of groove portion 602 and sliding rail 600
It is sizing die group 2 at 1/2 times~1 times of the maximum length that this side up.It is readily comprehensible, the cooperation of groove portion 602 and sliding rail 600
Length is longer, then the kinetic stability for being connected to the sizing die group 2 of groove portion 602 is higher, correspondingly, the plastic precision of battery core is corresponding
It improves.
Particularly, in order to save each the space occupied on shaping direction of plastic precision retention groove rail mechanism 6, with each shaping
The plastic precision retention groove rail mechanism 6 that mould group 2 is correspondingly arranged is arranged alternately along shaping direction.
Specifically, sliding rail is respectively set in two opposed inner walls 102aa, 102ab that shaping direction extends in through-hole 102a
600, the groove portion 602 connecting respectively with two adjacent sizing die groups 2 cooperates with not ipsilateral sliding rail 600 respectively, that is to say, that
The sliding rail 600 in one of them and left side cooperates, the cooperation of sliding rail 600 of another and right side, to realize reasonable cloth spatially
It sets, to reduce overall dimensions of the battery core apparatus for shaping on shaping direction, improves compactedness.It is, of course, also possible to be interpreted as, phase
More sizing die groups 2 can also be accommodated in same space, to realize the shaping simultaneously of more battery cores.
As shown in figure 5, Fig. 5 shows the structural schematic diagram of a sizing die group, it herein will be with this embodiment to sizing die
The specific structure of group is described, and other sizing die groups can be designed with reference to this sizing die group, and to other sizing die groups
Structure repeat no more.
In the embodiment shown in fig. 5, sizing die group 2 includes mould group pedestal 200 and shaping pressing plate 202, wherein mould group base
Seat 200 is installation carrier, and shaping pressing plate 202 is installed on mould group pedestal 200, shaping pressing plate 202 be used in reforming process with
Battery core contact.
In reforming process, since shaping pressing plate 202 applies very big extruding force to battery core, this meeting is so that battery core and shaping
Vacuum is formed between pressing plate 202, it is Nian Jie with shaping pressing plate 202 that this phenomenon will cause battery core, it is not readily disengaged from both after shaping,
It causes blanking difficult, for this phenomenon, vacuum breaker stomata 202a can be offered on shaping pressing plate 202, completed to shaping
Afterwards, compressed air can be inputted between battery core and shaping pressing plate 202 by vacuum breaker stomata 202a, is formed in two to break
Vacuum between person, compressed air can be supplied by external air source.
Illustratively, vacuum breaker stomata 202a can be covered with shaping pressing plate 202 by the way of uniformly distributed, but be not limited only to
This.
Selectable, shaping pressing plate 202 can also be arranged to hot shaping pressing plate, and hot shaping pressing plate can be by heating shaping
The mode of pressing plate 202 obtains.In this embodiment, shaping pressing plate 202 has cavity, and heating device such as heating rod etc. is placed on this
In cavity, when heating device energization, shaping pressing plate 202 can be transferred heat to.Hot shaping pressing plate may be implemented to battery core
Hot pressing shaping, the battery core after hot pressing shaping are not easy to restore deformation, and shaping effect is more preferable.
The cavity of shaping pressing plate 202 can also be connected to external air source simultaneously, to be passed through compressed air into the cavity, and
It is delivered between battery core and shaping pressing plate 202 via vacuum breaker stomata 202a.
Further, each shaping station can be arranged in pairs two hot shaping pressing plates, so, in reforming process,
Two hot shaping pressing plates can transmit heat from two sides of battery core to battery core respectively, to realize the two-sided hot pressing of battery core, further
Improve shaping effect.
Specifically, each sizing die group 2 between bottom and top layer includes two shaping pressing plates 202, it is one of
Shaping pressing plate 202 is fixed on the top of mould group pedestal 200, another is fixed on the lower section of mould group pedestal 200.
In addition, when using hot shaping, in order to avoid temperature raising causes shaping pressing plate 202 be bonded with battery core generation, also
Insulation adherent layer can be set on the surface that shaping pressing plate 202 is contacted with battery core.Insulating adherent layer can be (poly- to benzene two by PET
Formic acid class plastics) or PP (polypropylene) be made.In the present embodiment, insulation adherent layer be made of ceramic material, ceramic material with
The mode of plating is formed in the outer surface of shaping pressing plate 202.On the one hand, ceramic plated layer high temperature resistant is suitble under hot Training system
It uses；On the other hand, the flatness of ceramic plated layer is lower, while can prevent from generating between shaping pressing plate 202 and battery core larger
Bonding force.
Sizing die group 2 further includes connecting plate 204, and connecting plate 204 is connect with mould group pedestal 200, and is connect with groove portion 602,
Connecting plate 204 is set as two, corresponding with the quantity of plastic precision retention groove rail mechanism 6.
Length dimension of the one end that connecting plate 204 is connected with groove portion 602 on shaping direction is greater than connecting plate 204 far from slot
The size of 602 other end of portion increases the connection area of connecting plate 204 Yu groove portion 602 with this, increases bonding strength.
In view of this shape of connecting plate 204, the plastic precision retention groove rail mechanism 6 that is correspondingly arranged with each sizing die group 2
It is arranged alternately along shaping direction, then more highlights the space on shaping direction and obtain saving this effect.
For the sizing die group 2 of multiple hierarchal arrangements, height is higher, and the stability of vibration is poorer, therefore, reduces electricity
The whole height of core apparatus for shaping can significantly improve the stability in reforming process, improve the shaping quality of battery core.
For square electric cell, shaping, above-mentioned sizing die can be carried out to battery core in two directions
Battery core thickness direction shaping may be implemented in group 2, and battery core apparatus for shaping provided by the present application further includes side sizing die group 8, side shaping
Mould group 8 can then generate synchronous compressional movement, and the side shaping direction and shaping side along side shaping direction (X-direction in Fig. 5)
To difference.It follows that sizing die group 2 and side sizing die group 8 can synchronous extruding battery core from different directions, to realize jointly pair
The shaping of square electric cell.
Side sizing die group 8 includes two parts for being oppositely arranged, every part include transmission connection side shaping pressing plate 800 and
Driving assembly 802, wherein side shaping pressing plate 800 with battery core for contacting, and driving assembly 802 is for driving side shaping pressing plate 800
Generate extruding movement.
Illustratively, driving assembly 802 includes motor and ball screw framework, and the two is sequentially connected by shaft coupling,
In, driving assembly 802 is installed on mould group pedestal 200.It should be appreciated that the embodiment of driving assembly 802 is not limited only to this.
Side sizing die group 8 further includes linear guide 804, and linear guide 804 is set to mould group pedestal 200, and with side shaping
Pressing plate 800 is slidably matched, offset when with the movement of constrained side shaping pressing plate 800.
Side shaping pressing plate 800 can be also provided with into heating platen, thus realize the hot pressing to battery core, side shaping pressing plate 800
The structure that structure is also referred to shaping pressing plate 202 is configured, and details are not described herein again.
Sizing die group 2 or side sizing die group 8 can also include Material Sensor, pressure sensor and temperature sensor
Deng whether Material Sensor can detecte shaping station battery core, and the available shaping pressing plate 202 of pressure sensor and side are whole
The pressure that shape pressing plate 800 applies to battery core, the temperature of the available heating device of temperature sensor.
In addition, shaping pressing plate 202 and side shaping pressing plate 800 can also select the metal material of high-intensitive, anti-deformation, with
It improves the intensity of shaping pressing plate 202 and side shaping pressing plate 800 and prolongs the service life.
As shown in Figure 3 and Figure 6, battery core apparatus for shaping further includes insulation testing mechanism 10, and insulation testing mechanism 10 is for whole
The internal resistance value that battery core is detected during shape, can determine whether by internal resistance value inside battery core whether short circuit, it is bad so as to reject
Product.
Insulation testing mechanism 10 is set to sizing die group 2, is specifically set to mould group pedestal 200 comprising two test touchings
First 1002, two test contacts 1002 can be realized by connecting wire to be electrically connected, in the shaping stroke of sizing die group 2, two
A test contact 1002 is contacted with the anode ear of battery core with negative electrode lug respectively.
According to an exemplary embodiment, insulation testing mechanism 10 further includes cylinder 1004, and the driving of cylinder 1,004 two is surveyed
It is flexible to try the realization of contact 1002, test contact 1002 can be contacted with the anode ear of battery core with negative electrode lug respectively in stretching.
Test contact 1002 includes guide rod 10020, the pressure spring 10022 for being sleeved on the outside of guide rod 10020 and successively
It is connected to collets 10024 and the contact 10026 of 10020 lower end of guide rod, guide rod 10020 passes through linear bearing 10028
It is connected to the telescopic end of cylinder 1004, the upper end is locked by clamp ring 1006, and the overall structure after installation can be found in Fig. 7.
When the telescopic end of cylinder 1004 stretches out, deformation occurs for pressure spring 10022, so that test contact 1002 is reliably and just
Tab and negative electrode lug are kept in contact.
Insulation testing mechanism 10 is provided with multiple, and each shaping station is equipped with an insulation testing mechanism 10, and respectively
It is fixed on mould group pedestal 200 by fixing piece 1008.
As shown in Figure 2 and Figure 8, in order to improve the safety of operation, battery core apparatus for shaping further includes lockable mechanism 12, locking
Cooperate locking with linkage mechanism 3 when mechanism 12 be in off working state for battery core apparatus for shaping so that each sizing die group 2 and
Matrix 1 keeps opposing stationary.
According to an exemplary embodiment, lockable mechanism 12 includes closing piece 1202, cylinder 1204 and sliding rail 1206,
In, cylinder 1204 and closing piece 1202 are sequentially connected, and the two is respectively provided on the slide rail, cylinder 1204 and the fixed company of sliding rail 1206
Connect, closing piece 1202 is slidably connected with sliding rail 1206, and sliding rail 1206 is fixed on pedestal 100, when cylinder 1204 telescopic rod stretch out,
Closing piece 1202 can be moved along sliding rail 1206 towards the side close to linkage mechanism 3.
Referring to FIG. 2, for the linkage mechanism 3 using link mechanism comprising more connecting rods, each connecting rod is successively hinged,
Each connecting rod includes the hinged end passed through for articulated shaft, and in order to guarantee the reliability of locking, closing piece 1202 can be limited with hinged end
Position cooperation.
In the present embodiment, two hinged ends of closing piece 1202 and a connecting rod limit cooperation simultaneously, to limit the company
All freedom degrees of bar, so that lockable mechanism 12 is relatively reliable to the locking of linkage mechanism 3.
Specifically, closing piece 1202 opens up fluted 1202a, and the shape of groove 1202a and the shape of hinged end match, and two
When person cooperates locking, hinged end is contained in groove 1202a.
In the embodiment shown in Figure 2, the hinged end of each connecting rod is disposed as arc end, correspondingly, the two of groove 1202a
End is set as arc groove, and for rectangular hinged end, the processing technology of arc groove is more preferable.
The foregoing is merely preferred embodiment of the present application, are not intended to limit this application, for the skill of this field
For art personnel, various changes and changes are possible in this application.Within the spirit and principles of this application, made any to repair
Change, equivalent replacement, improvement etc., should be included within the scope of protection of this application.
Claims (13)
1. a kind of battery core apparatus for shaping characterized by comprising
Matrix；
Multiple sizing die groups；
Linkage mechanism；
Driving mechanism；
Wherein, each sizing die group is successively arranged along shaping direction, and the linkage mechanism is connect with each sizing die group,
The driving mechanism is connect with the linkage mechanism or the sizing die group, so that each sizing die group generates synchronization
Compressional movement.
2. battery core apparatus for shaping according to claim 1, which is characterized in that the driving mechanism and the sizing die group connect
It connects,
The linkage mechanism includes multiple parallel four-bar linkages successively arranged along the shaping direction, and each described parallel four
Link mechanism is connect with two adjacent sizing die groups respectively,
The two neighboring parallel four-bar linkage is articulated with same articulated shaft, and is articulated with four connecting rods two of same articulated shaft
Two are arranged to integral structure.
3. battery core apparatus for shaping according to claim 1, which is characterized in that the driving mechanism include power output portion and
Transmission connection portion,
The both ends in the transmission connection portion are connect with the sizing die group respectively, between intermediate position and the sizing die group there are
Interval,
The output shaft in the power output portion is inserted in the interval along the shaping direction, and the output the tip of the axis has
There is the limiting structure for preventing the output shaft and the transmission connection portion to be separated.
4. battery core apparatus for shaping according to claim 3, which is characterized in that further include pressure sensor, the pressure passes
Sensor is set to the sizing die group, in the shaping stroke, the limiting structure and the pressure sensor contacts.
5. battery core apparatus for shaping according to claim 1, which is characterized in that it further include plastic precision retention groove rail mechanism,
The plastic precision retention groove rail mechanism corresponds to each sizing die group and is arranged alternately on the shaping direction.
6. battery core apparatus for shaping according to claim 5, which is characterized in that the plastic precision retention groove rail mechanism includes
Sliding rail and groove portion, the sliding rail are slidably matched with the groove portion along the shaping direction, and the sliding rail is connect with described matrix, institute
Groove portion is stated to connect with the sizing die group,
The groove portion and the length of fit of the sliding rail are the sizing die groups 1/2 times~the 1 of the maximum length that this side up
Times.
7. battery core apparatus for shaping according to claim 5, which is characterized in that the plastic precision retention groove rail mechanism setting
It is two groups, and is distributed in the two opposite sides of the sizing die group.
8. battery core apparatus for shaping according to claim 1, which is characterized in that the sizing die group includes shaping pressing plate, institute
It states and offers vacuum breaker stomata on shaping pressing plate.
9. battery core apparatus for shaping according to claim 8, which is characterized in that the shaping pressing plate is hot shaping pressing plate, and
Corresponding each shaping station is arranged in pairs.
10. battery core apparatus for shaping according to claim 8, which is characterized in that the outer surface of the shaping pressing plate is provided with
Insulate adherent layer.
11. battery core apparatus for shaping according to claim 1, which is characterized in that further include side sizing die group, the side shaping
Mould group generates synchronous compressional movement along side shaping direction, and side shaping direction is different from the shaping direction.
12. battery core apparatus for shaping according to claim 1, which is characterized in that it further include insulation testing mechanism, the insulation
Mechanism for testing includes two test contacts,
The insulation testing mechanism is connect with the sizing die group, so that described two test contacts are in the sizing die group
Anode ear in shaping stroke respectively with battery core is contacted with negative electrode lug.
13. battery core apparatus for shaping according to claim 1, which is characterized in that it further include lockable mechanism, the lockable mechanism
It is arranged to cooperate locking with the linkage mechanism when the battery core apparatus for shaping is in off working state,
The lockable mechanism includes closing piece, the linkage mechanism include as more connecting rods it is hinged made of link mechanism, it is each described
Connecting rod includes across the hinged end of articulated shaft, and the closing piece and hinged end limit cooperate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711440044.6A CN109962280B (en) | 2017-12-26 | 2017-12-26 | Battery cell shaping device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711440044.6A CN109962280B (en) | 2017-12-26 | 2017-12-26 | Battery cell shaping device |
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| CN109962280B CN109962280B (en) | 2024-06-18 |
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| Publication number | Publication date |
|---|---|
| CN109962280B (en) | 2024-06-18 |
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