CN208284543U - Encapsulating structure suitable for high current soft-package battery group - Google Patents
Encapsulating structure suitable for high current soft-package battery group Download PDFInfo
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- CN208284543U CN208284543U CN201820738026.XU CN201820738026U CN208284543U CN 208284543 U CN208284543 U CN 208284543U CN 201820738026 U CN201820738026 U CN 201820738026U CN 208284543 U CN208284543 U CN 208284543U
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- lock lever
- check lock
- soft
- package battery
- high current
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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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Abstract
The utility model discloses a kind of encapsulating structures suitable for high current soft-package battery group, including multiple soft-package battery monomers, positive and negative anodes between adjacent soft-package battery monomer pass through connecting bridge (3) connection respectively, packaging of soft packaged monomer includes multiple soft pack cells for being respectively equipped with positive pole ear (1) and negative lug (1.1), the check lock lever being made of positive check lock lever (2) and cathode check lock lever (2.1), multiple cylindrical conductors (5), positive check lock lever (2) concatenates positive pole ear (1), cathode check lock lever (2.1) concatenates negative lug (1.1), cylindrical conductor (5) is socketed on check lock lever and is clamped between adjacent tab by check lock lever.The utility model clamps the structure type of tab using copper post, it reduces contact resistance and biggish conductor cross sectional area is provided, it can satisfy the design requirement of super-high-current, while meeting the maximum discharge current demand for capacity 4000mAh, discharge-rate 30C(120A).
Description
Technical field
The utility model relates to battery manufacturing fields, more particularly to a kind of encapsulation suitable for high current soft-package battery group
Structure.
Background technique
In recent years, lithium ion battery is since operating voltage is high, energy density is big, memory-less effect, has extended cycle life, without dirt
The advantages that dye, is applied in electron stored energy and special purpose battery more and more widely.It is well known that battery module makes
With in the process, under the conditions of inside battery or external cause such as temperature, mechanical shock, the safe things such as explosion on fire are caused
Therefore cause damages to life and property, it is extremely urgent to improve battery security.Currently, the encapsulation of lithium ion battery mainly has three
Kind shape, column lithium ion battery, rectangular lithium ion battery, aluminum plastic film flexible packing lithium ion battery, aluminum plastic film soft-package battery
There is the features such as energy density is high, ductility is good, but its receiving mechanical load capability is poor, soft pack cell is easy in collision and shell
Body contact leads to short circuit, and it is impossible to meet the design requirements of super-high-current.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, provide a kind of suitable for high current soft-package battery group
Encapsulating structure.
The purpose of this utility model is achieved through the following technical solutions: the envelope suitable for high current soft-package battery group
Assembling structure, the positive and negative anodes between adjacent soft-package battery monomer pass through connecting bridge respectively and connect；
The soft-package battery monomer includes check lock lever, multiple soft pack cells and multiple cylindrical conductors, the check lock lever by
Positive check lock lever and cathode check lock lever composition, each soft pack cell are equipped with positive pole ear and negative lug, the positive pole ear
It is equipped with the first through hole cooperated with positive check lock lever, the negative lug is equipped with second cooperated with cathode check lock lever and leads to
Hole, the anode check lock lever sequentially pass through the first through hole, and the cathode check lock lever sequentially passes through second through-hole；
The cylindrical conductor is axially arranged with the through hole with check lock lever cooperation, and the cylindrical conductor is socketed in the lock
On tight bar, and it is clamped between adjacent tab by check lock lever.
The cylindrical conductor is copper post.
The soft-package battery monomer further includes L-type folding ear, and the side plate of the L-type folding ear is equipped with and the check lock lever phase
The third through-hole matched, side plate are locked by check lock lever, and top plate draws binding post upwards, and the connecting bridge is connected to adjacent soft
Between the binding post of packet battery cell.
The side plate is clamped between the cell polar ear of outer end and the cylindrical conductor of outer end.
The L-type folding ear is that copper L-type rolls over ear.
The soft-package battery monomer further includes T-type insulating support, and the T-type insulating support includes fixed part and support portion,
Fixed part is equipped with the through-hole that cooperates with check lock lever and is fixed on check lock lever both ends by check lock lever, the top of the support portion to
Outside extends and exceeds single battery width.
The tail portion of the support portion is to battery cell internal stretch and is stuck between the side plate.
The fixed part is lock between the cell polar ear of outer end and locking nut.
The T-type insulating support is ABS insulating support.
The check lock lever is screw rod, and one end of the screw rod is nut, and the other end is locked by locking nut.
The beneficial effects of the utility model are:
1) cylindrical conductor is socketed on check lock lever, and is clamped by screw rod both ends, make cylindrical conductor be clamped in adjacent tab it
Between, the smooth close contact in the section of tab piece and cylindrical conductor can be made, and then reduce contact resistance, reduce electric current and be transmitted across
Loss in journey increases battery, and clamps form using copper post to provide biggish conductor cross sectional area, can satisfy
The design requirement of super-high-current.
2) L-type folding ear is set to the both ends of battery cell and draws binding post upwards, and binding post rolls over ear and tab phase by L-type
Even so that total it is more compact, convenient for concatenation, due to the distance between adjacent tab be it is fixed, by L-type roll over ear side plate
Between the cell polar ear of outer end and the cylindrical conductor of outer end, the thickness that ear side plate can be rolled over L-type substitutes one section of cylindricality and leads
The length of body reaches same diversion effect, has saved the materials of four cylindrical conductors in outer end, has reduced costs, furthermore, by L
Type folding ear side plate, which is set between the cell polar ear of outer end and the cylindrical conductor of outer end, can also shorten length needed for screw rod, can also expire
Sufficient soft-package battery monomer due to shell limitation and the Miniaturization Design that needs, can effectively avoid colliding in handling process
The problem of contacting screw rod both ends and shell.
3) thermal conductivity and good conductivity of copper, yield is big, moderate and not oxidizable in dry air, by copper
L-type folding ear processed and copper post are socketed on check lock lever, and the surface of copper will not generate oxidation film, then when its section and tab piece contact not
The film layer resistance constituted by contact surface film layer and other pollutants can be generated.
4) by check lock lever under the premise of can support cylindrical conductor, the screw rod for as selecting diameter small as possible connects as centre
Then fitting does cylindrical conductor sectional area greatly as far as possible, cylindrical conductor is also protected with tab contact area, decreases and connects
Electric shock resistance, makes it possible to through bigger electric current.
5) extend and exceed single battery width at the top of the support portion of T-type insulating support outward, make battery cell just
Cathode is kept apart with shell, plays the role of insulation protection, can be prevented collision trailing flank positive and negative electrode (locking nut) while be connect
The impact stress that screw rod is subject to when touching battery case and short circuit occurs, and effectively can disperse to collide is to play protection screw rod
Effect, prevent screw rod deformation or damage due to collision.
6) tail portion of support portion to battery cell internal stretch and is stuck between the side plate, the cross-shaped configuration of formation into
One step fixes total, and each packaging of soft packaged monomer is consolidated and is supported in battery case, battery is avoided to collide.
7) T-type insulating support uses ABS material, and ABS material intensity height, good toughness are easily processed into type, ABS insulation branch
Frame can prevent battery positive and negative electrode from contacting with shell and cause the accidents generation such as electric leakage, short circuit, electric shock.
Detailed description of the invention
Fig. 1 is the utility model of the whole structure diagram；
Fig. 2 is the structure chart of the utility model soft-package battery monomer；
Fig. 3 is the main view of Fig. 1；
Fig. 4 is the left view of Fig. 1；
Fig. 5 is the top view of Fig. 1:
In figure, 1- positive pole ear, 1.1- negative lug, 2- anode check lock lever, 2.1- cathode check lock lever, 3- connecting bridge, 4-
Binding post, 5- cylindrical conductor, 6-L type roll over ear, 6.1- side plate, 6.2- top plate, 7-T type insulating support, 7.1- fixed part, the top 7.2-
Portion, the tail portion 7.3-.
Specific embodiment
Below in conjunction with embodiment, the technical solution of the utility model is clearly and completely described, it is clear that retouched
The embodiment stated is only the utility model a part of the embodiment, instead of all the embodiments.Based in the utility model
Embodiment, those skilled in the art's every other embodiment obtained under the premise of not making the creative labor, all belongs to
In the range of the utility model protection.
Refering to fig. 1-5, the utility model provides a kind of technical solution: the encapsulation knot suitable for high current soft-package battery group
Structure, including multiple soft-package battery monomers, the positive and negative anodes between adjacent soft-package battery monomer pass through connecting bridge 3 respectively and connect, then institute
It is connected in series between the soft-package battery monomer stated, it is compact-sized, it is easy to connect, it is preferred that the connecting bridge 3 can connect for copper
Bridge, cost is relatively low, and conductive capability is strong.
The soft-package battery monomer includes check lock lever and multiple soft pack cells, and each soft pack cell is equipped with positive pole ear 1
With negative lug 1.1, the check lock lever is made of positive check lock lever 2 and cathode check lock lever 2.1, and the positive pole ear 1 is equipped with
With the first through hole of positive check lock lever 2 cooperation, the negative lug 1.1 is equipped with second cooperated with cathode check lock lever 2.1 and leads to
Hole, the anode check lock lever 2 sequentially pass through the first through hole, and the cathode check lock lever 2.1 sequentially passes through second through-hole,
The positive pole ear of soft pack cell 1, the concatenation of negative lug 1.1 are formed as one parallel-connection structure respectively.
The soft-package battery monomer further includes multiple cylindrical conductors 5, the pole of the length of cylindrical conductor 5 and adjacent soft pack cell
Spacing between ear matches, and the cylindrical conductor 5 is axially arranged with the through hole with check lock lever cooperation, the cylindrical conductor
5 are socketed on the check lock lever, and are clamped by screw rod both ends, are clamped in cylindrical conductor 5 between adjacent tab, can make tab
The smooth close contact in section of piece and cylindrical conductor 5, and then contact resistance is reduced, reduce the loss in electric current transmission process, increases
Long battery.The cylindrical conductor 5 is clamped between the tab of adjacent soft pack cell, then when the number of the soft pack cell
When amount is n, 5 total quantity of cylindrical conductor needed is 2*(n-1) it is a.
The cylindrical conductor 5 is copper post, and copper is that purplish red non-ferrous metal, thermal conductivity and electric conductivity are only second in all metals
Silver, and only this is moderate in aluminium for the yield of copper, furthermore, copper is not oxidizable in dry air, copper post is socketed in described
On check lock lever, the surface of copper post will not generate oxidation film, then will not generate when its section and tab piece contact due to contact surface
The film layer resistance that film layer and other pollutants are constituted.
The check lock lever is screw rod, and one end of the screw rod is nut, and the other end is locked by locking nut, the spiral shell of screw rod
Rotation structure can install bolt at its end and lock cylindrical conductor 5 in order to fixed, enable cylindrical conductor 5 that tab piece is firm
It is securely fixed, furthermore, because of the presence of screw surface helicla flute, so that there are gap between the check lock lever and the cylindrical conductor 5,
Achieve the effect that ventilation and heat to a certain extent, and imperfect contact between the two, reduces rubbing surface between the two
Product, effectively extends the service life of entire parallel-connection structure.
Preferably, can be by the check lock lever under the premise of can support cylindrical conductor 5, the small spiral shell of selection diameter as far as possible
Then bar does the sectional area of cylindrical conductor 5 greatly as far as possible as intermediate connector, cylindrical conductor 5 and tab contact area also obtain
To guarantee, contact resistance is decreased, is made it possible to through bigger electric current.
Further, according to I=US/PL=S*U/PL, it is known that the resistivity P of the material of resistance is made and turns to resistance
Conductor length L is definite value (resistance herein is cylindrical conductor 5), then in the case where voltage U is constant, electric current I and cross-sectional area S
For proportional relation, can satisfy for capacity 4000mAh, discharge-rate 30C(120A) maximum discharge current demand, and copper post
Biggish conductor cross sectional area can more be provided by clamping form, can satisfy the design requirement of super-high-current, furthermore, since maximum is discharged
Ampere number=conductor cross sectional area square millimeter numerical value * engineering coefficient K, for big rate battery in short-term, K value 10 ~ 12, column
The sectional area calculation formula of shape conductor 5 are as follows: conductor cross sectional area square millimeter numerical value=maximum discharge current amperage/engineering coefficient
K is then the maximum discharge current requirement for meeting 120A, and the sectional area of cylindrical conductor 5 needs to accomplish 10-12mm2, it is conducive to add
Work manufacture.
The soft-package battery monomer further includes L-type folding ear 6, and the side plate 6.1 of the L-type folding ear 6 is equipped with and the locking
The third through-hole that bar matches, side plate 6.1 are locked by check lock lever, then the check lock lever passes through the side plate 6.1, top plate
6.2 draw binding post 4 upwards, and the connecting bridge 3 is connected between the binding post 4 of adjacent soft-package battery monomer, and binding post 4 is distinguished
The positive and negative electrode of the soft-package battery monomer is connected with conducting wire, convenient and efficient, binding post 4 is connected with L-type folding ear 6, so that whole
A structure is more compact, is convenient for concatenation.
Preferably, the top plate 6.2 is equipped with the fourth hole to match with the binding post 4, then can be straight by binding post 4
The fixation work that binding post 4 and L-type folding ear 6 can be completed across fourth hole is connect, structure is simple, convenient and practical.
The described L-type folding ear 6 is that copper L-type rolls over ear, and the side plate 6.1 of L-type folding ear 6 is contacted with copper post, top plate 6.2 with it is described
Binding post 4 contacts, and can also achieve the effect that reduce contact resistance as previously described.
The side plate 6.1 is clamped between the cell polar ear of outer end and the cylindrical conductor 5 of outer end, due between adjacent tab
Distance be it is fixed, by L-type folding ear 6 side plate 6.1 be set to outer end cell polar ear and outer end cylindrical conductor 5 between, energy
The thickness of enough side plates 6.1 substitutes the length of one section of cylindrical conductor 5 to reach same diversion effect, has saved the column of outer end four
The materials of shape conductor 5, reduce costs, furthermore, the side plate 6.1 of L-type folding ear 6 is set to the cell polar ear of outer end and the column of outer end
Length needed for screw rod can also be shortened between shape conductor, soft-package battery monomer is also can satisfy and needed small due to the limitation of shell
Typeization design, can effectively avoid the problem that colliding in handling process contacting screw rod both ends with shell.
The side plate 6.1 of the L-type folding ear 6 can be two kinds of shapes, first, adding when side plate 6.1 is identical as the section of tab
Work is relatively easy to, second, when side plate 6.1 with the section phase of cylindrical conductor 5 simultaneously as cylindrical conductor 5 concatenates on tab has had
For the condition for the maximum current-carrying that circulates, then side plate 6.1 is identical as the section of cylindrical conductor 5, can play same as cylindrical conductor 5
Effect, binding post 4 is then transferred current to by the top plate 6.2 being connected with side plate 6.1, compared to the former, the latter
Then save materials, save the cost.
The soft-package battery monomer further includes T-type insulating support 7, and the T-type insulating support 7 includes fixed part 7.1 and branch
Support part, fixed part 7.1 are equipped with the through-hole cooperated with check lock lever and are fixed on check lock lever both ends, the fixed part by check lock lever
7.1 lock between the cell polar ear of outer end and locking nut, stable structure.
In the present invention, intermediate connector of the check lock lever as support concatenation cylindrical conductor 5 and tab, check lock lever energy
Certain electric current is enough carried, the top 7.2 of the support portion extends outward and beyond single battery width, makes battery cell
Positive and negative anodes are kept apart with shell, play the role of insulation protection circuit, can prevent collision trailing flank positive and negative electrode (locking nut)
The impact stress that screw rod is subject to when contacting battery case simultaneously and short circuit occurs, and effectively can disperse to collide is protected with playing
The effect for protecting screw rod, prevents screw rod deformation or damage due to collision.
The tail portion 7.3 of the support portion is to battery cell internal stretch and is stuck between the side plate, formation it is cross
Structure further fixes total, and each packaging of soft packaged monomer is consolidated and is supported in battery case, battery is avoided to collide.
Further, the length that the tail portion 7.3 of the support portion may be selected to be suitable for makes positive pole ear 1, negative lug 1.1
Do not contact and play fixed function, save the cost while can play good cross-ventilation effect to entire monomer
Battery ventilation and heat, and to a certain extent, the aging of T-type insulating support 7 can be prevented.
Preferably, the T-type insulating support 7 is ABS insulating support, and ABS intensity height, good toughness are easily processed into type,
ABS insulating support can prevent battery positive and negative electrode from contacting with shell and cause the accidents generation such as electric leakage, short circuit, electric shock.
The above is only the preferred embodiment of the utility model, it should be understood that the utility model is not limited to herein
Disclosed form, should not be regarded as an exclusion of other examples, and can be used for other combinations, modifications, and environments, and
Can be in contemplated scope described herein, modifications can be made through the above teachings or related fields of technology or knowledge.And this field
The modifications and changes that personnel are carried out do not depart from the spirit and scope of the utility model, then all should be in right appended by the utility model
It is required that protection scope in.
Claims (10)
1. being suitable for the encapsulating structure of high current soft-package battery group, including multiple soft-package battery monomers, it is characterised in that: adjacent soft
Positive and negative anodes between packet battery cell pass through connecting bridge (3) connection respectively；
The soft-package battery monomer includes check lock lever, multiple soft pack cells and multiple cylindrical conductors (5), and the check lock lever is by just
Pole check lock lever (2) and cathode check lock lever (2.1) composition, each soft pack cell are equipped with positive pole ear (1) and negative lug
(1.1), the positive pole ear (1) is equipped with the first through hole that cooperates with positive check lock lever (2), on the negative lug (1.1)
Equipped with the second through-hole cooperated with cathode check lock lever (2.1), the anode check lock lever (2) sequentially passes through the first through hole, institute
It states cathode check lock lever (2.1) and sequentially passes through second through-hole；
The cylindrical conductor (5) is axially arranged with the through hole with check lock lever cooperation, and the cylindrical conductor (5) is socketed in described
On check lock lever, and it is clamped between adjacent tab by check lock lever.
2. the encapsulating structure according to claim 1 suitable for high current soft-package battery group, it is characterised in that: the column
Shape conductor (5) is copper post.
3. the encapsulating structure according to claim 1 suitable for high current soft-package battery group, it is characterised in that: the Soft Roll
Battery cell further includes L-type folding ear (6), and the side plate (6.1) of L-type folding ear (6) is equipped with to match with the check lock lever
Third through-hole, side plate (6.1) are locked by check lock lever, and top plate (6.2) draws binding post (4), the connecting bridge (3) upwards
It is connected between the binding post (4) of adjacent soft-package battery monomer.
4. the encapsulating structure according to claim 3 suitable for high current soft-package battery group, it is characterised in that: the side plate
(6.1) it is clamped between the cell polar ear of outer end and the cylindrical conductor (5) of outer end.
5. the encapsulating structure according to claim 3 suitable for high current soft-package battery group, it is characterised in that: the L
It is that copper L-type rolls over ear that type, which rolls over ear (6),.
6. the encapsulating structure according to claim 3 suitable for high current soft-package battery group, it is characterised in that: the Soft Roll
Battery cell further includes T-type insulating support (7), and the T-type insulating support (7) includes fixed part (7.1) and support portion, fixed part
(7.1) it is equipped with the through-hole cooperated with check lock lever and check lock lever both ends, the top of the support portion is fixed on by check lock lever
(7.2) extend outward and exceed single battery width.
7. the encapsulating structure according to claim 6 suitable for high current soft-package battery group, it is characterised in that: the support
The tail portion (7.3) in portion is to battery cell internal stretch and is stuck between the side plate (6.1).
8. the encapsulating structure according to claim 6 suitable for high current soft-package battery group, it is characterised in that: the lock
Tight bar is screw rod, and one end of the screw rod is nut, and the other end is locked by locking nut.
9. the encapsulating structure according to claim 8 suitable for high current soft-package battery group, it is characterised in that: the fixation
Portion (7.1) is lock between the cell polar ear of outer end and locking nut.
10. the encapsulating structure according to claim 6 suitable for high current soft-package battery group, it is characterised in that: the T
Type insulating support (7) is ABS insulating support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820738026.XU CN208284543U (en) | 2018-05-17 | 2018-05-17 | Encapsulating structure suitable for high current soft-package battery group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820738026.XU CN208284543U (en) | 2018-05-17 | 2018-05-17 | Encapsulating structure suitable for high current soft-package battery group |
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| Publication Number | Publication Date |
|---|---|
| CN208284543U true CN208284543U (en) | 2018-12-25 |
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ID=64730088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820738026.XU Active CN208284543U (en) | 2018-05-17 | 2018-05-17 | Encapsulating structure suitable for high current soft-package battery group |
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| Country | Link |
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| CN (1) | CN208284543U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108695482A (en) * | 2018-05-17 | 2018-10-23 | 四川众联航泰科技有限公司 | Encapsulating structure suitable for high current soft-package battery group |
-
2018
- 2018-05-17 CN CN201820738026.XU patent/CN208284543U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108695482A (en) * | 2018-05-17 | 2018-10-23 | 四川众联航泰科技有限公司 | Encapsulating structure suitable for high current soft-package battery group |
| CN108695482B (en) * | 2018-05-17 | 2024-05-07 | 四川众联航泰科技有限公司 | Packaging structure suitable for high-current soft package battery pack |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Packaging structure suitable for high current flexible battery pack Effective date of registration: 20220526 Granted publication date: 20181225 Pledgee: Bank of Chengdu science and technology branch of Limited by Share Ltd. Pledgor: SICHUAN ZHONGLIAN HANGTAI TECHNOLOGY CO.,LTD. Registration number: Y2022510000145 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230620 Granted publication date: 20181225 Pledgee: Bank of Chengdu science and technology branch of Limited by Share Ltd. Pledgor: SICHUAN ZHONGLIAN HANGTAI TECHNOLOGY CO.,LTD. Registration number: Y2022510000145 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |