CN208385467U - A kind of flexibility battery core pole connection structure and battery core voltage collecting device - Google Patents
A kind of flexibility battery core pole connection structure and battery core voltage collecting device Download PDFInfo
- Publication number
- CN208385467U CN208385467U CN201820698371.5U CN201820698371U CN208385467U CN 208385467 U CN208385467 U CN 208385467U CN 201820698371 U CN201820698371 U CN 201820698371U CN 208385467 U CN208385467 U CN 208385467U
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- China
- Prior art keywords
- paillon
- battery core
- connection structure
- pole connection
- core pole
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- 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
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- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model discloses a kind of flexible battery core pole connection structures, including multiple first paillons, multiple second paillons and third paillon；First paillon, the second paillon and third paillon include the non-pressure welding area that centre is arranged in and the pressure welding area that non-pressure welding area both ends are arranged in；Third paillon further includes from the outwardly directed sample region of pressure welding area；First paillon, the second paillon and third paillon are cascading, and a side of third paillon is contacted with innermost first paillon in multiple first paillons, another side of third paillon is contacted with innermost second paillon in multiple second paillons.The invention also discloses a kind of battery core voltage collecting devices.Compared with prior art, the utility model simplifies battery pack assemble flow, substantially increases working efficiency, reduces production cost without the step of carrying out wire bonding welding.
Description
Technical field
The utility model relates to cell manufacturing techniques fields, and in particular to a kind of flexibility battery core pole connection structure and tool
There is the battery core voltage collecting device of the flexibility battery core pole connection structure.
Background technique
The information of voltage of every battery core requires to acquire in battery pack, traditional battery core information of voltage acquisition mode in industry
It is that copper core cable is directly connected to sampling module from battery core pole connection row, gradually universal mode is to add flexible electrical using aluminium wire
The mode transfer overvoltage information of road plate, compared with the former, the latter connects protection more preferably, and sampling is more acurrate, and can integrate insurance and exist
In flexible circuit board, sampling module and battery core are protected.In addition, there are also connected using laser welding using nickel sheet as battery core pole
The technical solution of the connection of row and sampling circuit board.
But the step of wire bonding welding need to be carried out using communication cable or aluminium wire, yields is low for welding, weld strength
Small, equipment price is high and needs to occupy more multistation；Using nickel sheet connection, then there are welding, consistency is poor, shock resistance
The disadvantages of weak, additional high-precision frock clamp of needs, increase tact-time.
In conclusion above method each has apparent defect, it is unfavorable for the raising and cost of battery pack assembly efficiency
Reduction.
Utility model content
The purpose of the utility model is to provide a kind of stacked flexible battery cores that can replace traditional battery core pole connection row
Pole connection structure, the flexibility battery core pole connection structure have the paillon that can draw collection voltages information, make battery packages
With process simplification.For this purpose, on the one hand the utility model proposes a kind of flexible battery core pole connection structure, specific technical solution is such as
It is lower described:
A kind of flexibility battery core pole connection structure, including multiple first paillons, multiple second paillons and third paillon；Institute
Stating the first paillon, second paillon and the third paillon includes that intermediate non-pressure welding area is arranged in and is arranged described non-
The pressure welding area at pressure welding area both ends；The third paillon further includes from the outwardly directed sample region of the pressure welding area；
First paillon, second paillon and the third paillon are cascading, and the one of the third paillon
A side is contacted with first paillon innermost in the multiple first paillon, another side of the third paillon with
The innermost second paillon contact in the multiple second paillon.
Further, the surface of outermost first paillon is equipped with electroplated layer in the multiple first paillon；With/
Or, outermost second paillon is equipped with electroplated layer in the multiple second paillon；And/or the third paillon is equipped with electricity
Coating.
Further, the electroplated layer is nickel coating.
Further, the vertical sectional shape of the non-pressure welding area is arc curve, first paillon, second foil
Piece, the third paillon vertical sectional shape be Ω shape or normal distribution curve shape.
Further, the vertical sectional shape of the non-pressure welding area is trapezoidal, Π shape or inverted V-shaped.
Further, the pressure welding area is equipped at least one first positioning hole for being used to assist welding, and the sample region is remote
One end from the pressure welding area is equipped with the second location hole for assisting welding.
Further, first paillon is copper foil or aluminium foil；And/or second paillon is copper foil or aluminium foil；With/
Or, the third paillon is copper foil or aluminium foil.
The another aspect of the utility model proposes a kind of battery core voltage collecting device, and specific technical solution is as described below:
A kind of battery core voltage collecting device, including battery core, voltage acquisition module, sampling circuit board and above-mentioned flexible battery core
Pole connection structure, the battery core are connect with the flexible battery core pole connection structure, the battery core pole connection structure and institute
Sampling circuit board connection is stated, the sampling circuit board is connect with the voltage acquisition module.
Further, the battery core includes battery core pole, and the battery core pole and the pressure welding area are solid using laser welding
Fixed, the sample region is fixed with the sampling circuit board using soldering and welding.
Further, the sampling circuit board is flexible circuit board.
The utility model simplifies battery packages and matches production procedure, while increasing working efficiency, reducing production cost,
Can also bring it is following the utility model has the advantages that
1, foil configuration used in the utility model is simple, and difficulty of processing is small, so the flexible electrical of lamination compression moulding
Core pole connection structure processing consistency is high.
2, battery core pole connection structure provided by the utility model is integrated press-formed product, and shock resistance is strong, the
The sample region of three paillons by soldering and welding to flexible circuit board in, solder joint is firm, and prolonging by paillon and flexible circuit board
Malleability reaches very high seismic behavior.
3, tin soldering equipment price is significantly less than bonding apparatus and laser welding apparatus.
4, the third paillon of the utility model includes sample region, third paillon, the first paillon, the second paillon punch forming,
It is an integral structure, firm in structure, intensity is high.
5, the utility model structure is simple, easy processing, yields are high, and it is raw to have saved single products compared with prior art
The production time does not need to occupy additional station in producing line without additional frock clamp yet, is conducive to save production space.
The additional aspect and advantage of the utility model will be set forth in part in the description, partially will be from following description
In become obvious, or recognized by the practice of the utility model.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the structural schematic diagram of flexible battery core pole connection structure provided by the embodiment of the utility model；
Fig. 2 is the three-view diagram of flexible battery core pole connection structure provided by the embodiment of the utility model；
Fig. 3 is the structural representation before the punch forming of the first paillon and the second paillon provided by the embodiment of the utility model
Figure；
Fig. 4 is the structural schematic diagram before the punch forming of third paillon provided by the embodiment of the utility model.
Wherein, the first paillon 1, the second paillon 2, third paillon 3, non-pressure welding area 4, pressure welding area 5, sample region 6, the first positioning
Hole 7, second location hole 8.
Specific embodiment
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, it is intended to for explaining the utility model, and should not be understood as to the utility model
Limitation.
In the description of the present invention, it should be understood that term " on ", "lower", "top", "bottom", "inner", "outside" etc.
The orientation or positional relationship of instruction is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description the utility model
It is described with simplifying, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific orientation
Construction and operation, therefore should not be understood as limiting the present invention.The meaning of " multiple " in the description of the present invention,
It is two or more, unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms shall be understood in a broad sense, for example, can make to be fixedly connected, may be a detachable connection, or integral；It can be
Mechanical connection, is also possible to be electrically connected；It can make to be connected directly, two can also be can be indirectly connected through an intermediary
The interaction relationship of connection or two elements inside element.It for the ordinary skill in the art, can basis
Concrete condition understands the concrete meaning of above-mentioned term in the present invention.
Embodiment 1
Fig. 1 is the structural schematic diagram of flexible battery core pole connection structure provided by the embodiment of the utility model,
Fig. 2 is the three-view diagram of flexible battery core pole connection structure provided by the embodiment of the utility model, such as Fig. 1 and Fig. 2 institute
Show, flexibility battery core pole connection structure provided in this embodiment, including multiple first paillons 1, multiple second paillons 2 and third
Paillon 3.
First paillon 1, the second paillon 2 and third paillon 3 include that intermediate non-pressure welding area 4 is arranged in and is arranged non-depressed
The pressure welding area 5 at 4 both ends of welding zone, non-4 domain of pressure welding area absorb external force by the deformation of itself, resist external vibration and impact
Deng connection is responsible in 5 domain of pressure welding area.
Third paillon 3 further includes from the outwardly directed sample region 6 of pressure welding area 5, so that flexible battery core pole connection knot
Structure carries voltage sample and draws signal, the monomer battery voltage of all battery core mould groups can be drawn signaling point and pass through flexible circuit
Plate is pooled on voltage acquisition plate, extends the function of battery core pole connection structure compared with prior art.
First paillon 1, the second paillon 2 and third paillon 3 are cascading, a side of third paillon 3 with it is multiple
Innermost first paillon 1 contacts in first paillon 1, most inner side in another side of third paillon 3 and multiple second paillons 2
The second paillon 2 contact.
The state distribution curve referring to Fig.1 and 2, the forward sight diagram shape of the flexible battery core pole connection structure of diagram is positive
Shape, wherein the vertical sectional shape of non-pressure welding area 4 is arc curve.
Fig. 1 is please referred to, the pressure welding area 5 at 4 both ends of non-pressure welding area of diagram is respectively provided with one for assisting weld first to determine
Position hole 7, two first positioning holes 7 are symmetrical arranged, and the shape of first positioning hole 7 is circle.Sample region 6 far from pressure welding area 5 one
End is equipped with the second location hole 8 for assisting welding, and the shape of second location hole 8 is strip.It should be pointed out that first is fixed
Position hole 7, second location hole 8 number and shape can be not limited thereto by technical staff determine according to actual needs.
Fig. 3 is the structural representation before the punch forming of the first paillon and the second paillon provided by the embodiment of the utility model
Figure, as shown in figure 3, the first paillon 1 and the second paillon 2 are rectangle laminated structure before punch forming, optionally, the first foil
Piece 1 and the second paillon 2 are the rectangle sheet mechanism with chamfering (chamfer or rounded corner).
Fig. 4 is the structural schematic diagram before the punch forming of third paillon provided by the embodiment of the utility model, such as Fig. 4 institute
Show, third paillon 3 is laminated structure before punch forming, which includes Chong Die with the first paillon 1, the second paillon 2
Rectangular region, and stretch out the T shape sample region 6 of the rectangular region；Preferably, the big end in T shape area is far from rectangular region,
And it is arranged in parallel with rectangular region.
To prevent corrosion and oxidation corrosion, adopted on the surface of outermost first paillon 1 and outermost second paillon 2
Use electro-nickel process.To corrode convenient for welding and preventing, electro-nickel process is used on the surface of third paillon 3.
During acquiring the information of voltage of battery core, to reduce error as far as possible, the internal resistance of collection medium should be as far as possible
The small pressure drop to reduce generation.Preferably, collection medium is the copper that conductivity is high, intensity is high；Alternatively, collection medium is
Aluminium, aluminium overcurrent capability compared with copper accordingly dies down, but mass per volume is light, at low cost, easily welds.In a kind of embodiment party
In formula, the first paillon 1, the second paillon 2 and 3 three of third paillon are copper foil or aluminium foil；In one embodiment, the first foil
Piece 1, the second paillon 2 are copper foil, and third paillon 3 is aluminium foil；In one embodiment, the first paillon 1, the second paillon 2 are equal
For aluminium foil, third paillon 3 is copper foil.In addition, copper foil is used using aluminium foil, the second paillon 2 with third paillon 3 in the first paillon 1,
Alternatively, also can be realized flexible battery core pole when the first paillon 1 uses aluminium foil using copper foil, the second paillon 2 with third paillon 3
The due function of connection structure.It should be pointed out which kind of material the first paillon 1, the second paillon 2 and third paillon 3 select respectively
Material can be by technical staff determines according to actual conditions, it is not limited here.
The manufacturing step of flexibility battery core pole connection structure provided in this embodiment is as described below:
If 1, base material to be cut into the shape of dry plate (for example, 20) Fig. 3 and the shape of 1 Fig. 4 using numerically-controlled machine tool.
2, pretreated paillon is needed to carry out surface layer electronickelling processing three pieces.Three pieces are respectively top layer's Fig. 3 shape
Paillon (outermost first paillon 1), the paillon (outermost second paillon 2) of lowest level Fig. 3 shape, intermediate course Fig. 4 shape
The paillon (third paillon 3) of shape.
3,21 paillons are sequentially stacked on punching press grinding tool, stacking order are as follows: basecoat is Fig. 3 nickel plating paillon (table
Second paillon 2 of layer nickel plating), then 9 layers of Fig. 3 paillon (not carrying out pretreated second paillon 2) is stacked, then stack Fig. 4 plating nickel foil
Piece (the third paillon 3 of surface layer nickel plating) stacks 9 layers of Fig. 3 paillon (not carrying out pretreated first paillon 1) later, and top layer is
Fig. 3 nickel plating paillon (the first paillon 1 of surface layer nickel plating).
4, by 21 layers of paillon punch forming, except domes (the arc-shaped curve-like in its longitudinal section) is non-pressure welding area 4, other
Region is pressure welding area 5, shape such as Fig. 3.
Due to fixed form relative securement of the battery core in mould group, and, institute also very small by the deformation that vibration influence generates
With the area of buffer area without very big, Gu Feihanjiequ is designed in arch area.
It should be pointed out that flexibility battery core pole connection structure provided in this embodiment and battery core pole are using Laser Welding
It is connected together, the deformation quantity of appearance is extremely limited, and the high temperature for welding generation can melt copper bar sheath, therefore, wraps up non-depressed
The soft sheath in 4 domain of welding zone in the present embodiment and is not suitable for.
Implement the utility model has the following beneficial effects:
1, foil configuration used in the utility model is simple, and difficulty of processing is small, so the flexible electrical of lamination compression moulding
Core pole connection structure processing consistency is high.
2, the third paillon of the utility model includes sample region, third paillon, the first paillon, the second paillon punch forming,
It is an integral structure, firm in structure, intensity is high.
3, the utility model structure is simple, easy processing, yields are high, and it is raw to have saved single products compared with prior art
The production time does not need to occupy additional station in producing line without additional frock clamp yet, is conducive to save production space.
Embodiment 2
The present embodiment the difference from embodiment 1 is that, flexibility battery core pole connection structure provided in this embodiment it is non-depressed
The vertical sectional shape of welding zone 4 is arc curve, and the vertical sectional shape of third paillon 3 is Ω shape.
Embodiment 3
The present embodiment the difference from embodiment 1 is that, flexibility battery core pole connection structure provided in this embodiment it is non-depressed
The vertical sectional shape of welding zone 4 is trapezoidal, Π shape or inverted V-shaped.
Embodiment 4
Battery core voltage collecting device provided in this embodiment, including battery core, voltage acquisition module, sampling circuit board and above-mentioned
The flexible battery core pole connection structure that any embodiment provides, battery core are connect with flexible battery core pole connection structure, battery core pole
Connection structure is connect with sampling circuit board, and sampling circuit board is connect with voltage acquisition module.
Specifically, battery core includes battery core pole, and battery core pole is fixed with pressure welding area 5 using laser welding, sample region 6 with adopt
Sample circuit board is fixed using soldering and welding.
Specifically, sampling circuit board is flexible circuit board.
1, battery core pole connection structure provided in this embodiment is integrated press-formed product, and shock resistance is strong；Third
The sample region of paillon 3 by soldering and welding to flexible circuit board in, solder joint is firm, and by paillon and flexible circuit board extension
Property, reach very high seismic behavior.
2, tin soldering equipment price is significantly less than bonding apparatus and laser welding apparatus.
3, this embodiment simplifies battery packages to match production procedure, increases working efficiency, reduces production cost.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means particular features, structures, materials, or characteristics described in conjunction with this embodiment or example
It is contained at least one embodiment or example of the utility model.In the present specification, schematic expression of the above terms
It need not be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
What can be combined in any suitable manner in one or more embodiment or examples.In addition, those skilled in the art can will be in this specification
The different embodiments or examples of description are engaged and are combined.
Although the embodiments of the present invention have been shown and described above, it is to be understood that above-described embodiment is
Illustratively, it should not be understood as limiting the present invention, those skilled in the art are in the scope of the utility model
It is interior above-described embodiment can be changed, modifications and variations.
Claims (10)
1. a kind of flexibility battery core pole connection structure, which is characterized in that including multiple first paillons (1), multiple second paillons (2)
And third paillon (3)；
First paillon (1), second paillon (2) and the third paillon (3) include that intermediate non-pressure welding is arranged in
Area (4) and setting non-pressure welding area (4) both ends pressure welding area (5)；The third paillon (3) further includes from the pressure welding area
(5) outwardly directed sample region (6)；
First paillon (1), second paillon (2) and the third paillon (3) are cascading, the third paillon
(3) a side is contacted with first paillon (1) innermost in the multiple first paillon (1), the third paillon
(3) another side is contacted with second paillon (2) innermost in the multiple second paillon (2).
2. flexibility battery core pole connection structure according to claim 1, which is characterized in that the multiple first paillon (1)
In outermost first paillon (1) surface be equipped with electroplated layer；And/or it is outermost in the multiple second paillon (2)
Second paillon (2) is equipped with electroplated layer；And/or the third paillon (3) is equipped with electroplated layer.
3. flexibility battery core pole connection structure according to claim 2, which is characterized in that the electroplated layer is nickel coating.
4. flexibility battery core pole connection structure according to claim 1, which is characterized in that the non-pressure welding area (4) is indulged
Cross sectional shape is arc curve, first paillon (1), second paillon (2), the third paillon (3) longitudinal section shape
Shape is Ω shape or normal distribution curve shape.
5. flexibility battery core pole connection structure according to claim 1, which is characterized in that the non-pressure welding area (4) is indulged
Cross sectional shape is trapezoidal, Π shape or inverted V-shaped.
6. flexibility battery core pole connection structure according to claim 1, which is characterized in that the pressure welding area (5) is equipped with extremely
A few first positioning hole (7) for assisting welding, the sample region (6) are equipped with far from the one end of the pressure welding area (5) and use
In the second location hole (8) of auxiliary welding.
7. flexibility battery core pole connection structure according to claim 1, which is characterized in that first paillon (1) is copper
Foil or aluminium foil；And/or second paillon (2) is copper foil or aluminium foil；And/or the third paillon (3) is copper foil or aluminium foil.
8. a kind of battery core voltage collecting device, which is characterized in that including battery core, voltage acquisition module, sampling circuit board and right
It is required that any flexible battery core pole connection structure of 1-7, the battery core is connect with the flexible battery core pole connection structure,
The battery core pole connection structure is connect with the sampling circuit board, and the sampling circuit board and the voltage acquisition module connect
It connects.
9. battery core voltage collecting device according to claim 8, which is characterized in that the battery core includes battery core pole, institute
It states battery core pole and is fixed with the pressure welding area (5) using laser welding, the sample region (6) and the sampling circuit board use tin
Weldering is welded and fixed.
10. battery core voltage collecting device according to claim 8, which is characterized in that the sampling circuit board is flexible electrical
Road plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820698371.5U CN208385467U (en) | 2018-05-10 | 2018-05-10 | A kind of flexibility battery core pole connection structure and battery core voltage collecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820698371.5U CN208385467U (en) | 2018-05-10 | 2018-05-10 | A kind of flexibility battery core pole connection structure and battery core voltage collecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208385467U true CN208385467U (en) | 2019-01-15 |
Family
ID=64970268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820698371.5U Expired - Fee Related CN208385467U (en) | 2018-05-10 | 2018-05-10 | A kind of flexibility battery core pole connection structure and battery core voltage collecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208385467U (en) |
-
2018
- 2018-05-10 CN CN201820698371.5U patent/CN208385467U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190115 Termination date: 20200510 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |