CN208622792U - A kind of cylindrical battery capping structure - Google Patents
A kind of cylindrical battery capping structure Download PDFInfo
- Publication number
- CN208622792U CN208622792U CN201821108350.XU CN201821108350U CN208622792U CN 208622792 U CN208622792 U CN 208622792U CN 201821108350 U CN201821108350 U CN 201821108350U CN 208622792 U CN208622792 U CN 208622792U
- Authority
- CN
- China
- Prior art keywords
- explosion
- aluminium flake
- proof aluminium
- cylindrical battery
- sealing ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
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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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- Sealing Battery Cases Or Jackets (AREA)
Abstract
A kind of cylindrical battery capping structure；Including electrode steel shell, explosion-proof aluminium flake, power-off connection sheet, insulating washer and the sealing ring set gradually；The top of the explosion-proof aluminium flake is arranged in the electrode steel shell；The explosion-proof aluminium flake central area is downwardly convex, and central area is in sunk structure, and the insulating washer is embedded in the sunk structure of the explosion-proof aluminium flake, and the downwardly convex lower section of the explosion-proof aluminium flake is arranged in the power-off connection sheet；In the circumferential direction of the sealing ring outer rim, it is equipped at intervals with plural convex ribs.The utility model structure is simple, can effectively increase leakproofness, to reduce the high request to parts size precision, reduces manufacture difficulty, while reducing production cost.
Description
Technical field
The utility model belongs to lithium battery nut cap technical field, is related to a kind of cylindrical battery capping structure.
Background technique
The cap combining device of lithium ion battery is the critical component of lithium ion battery, it is related to the safety of product,
Influence the personal safety of the producer, consumer.With the development of lithium ion battery, application of the lithium battery in people's lives is got over
To come more, form is also more and more diversified, such as: quadrate lithium battery, soft package lithium battery, cylinder type lithium battery.
Cylindrical battery generally includes the compositions such as battery case, round nut cap, positive/negative plate, diaphragm, electrolyte, the prior art
In, it is the contact between entire surface and face between round nut cap and battery case, it is higher to the precision prescribed of part size, it is no
Then, sealing performance is poor, so that production cost is higher.
Therefore, how to solve the above problems, be the content to be studied of those skilled in the art.
Summary of the invention
To overcome the deficiencies in the prior art described above, the utility model aim is to provide that a kind of structure is simple, is produced into
This low, good seal performance cylindrical battery capping structure.
In order to achieve the above objects and other related objects, the utility model provides a kind of cylindrical battery capping structure；Packet
Include the electrode steel shell set gradually, explosion-proof aluminium flake, power-off connection sheet, insulating washer and sealing ring；The electrode steel shell setting exists
The top of the explosion-proof aluminium flake；The explosion-proof aluminium flake central area is downwardly convex, and central area is in sunk structure, the insulation
Washer is embedded in the sunk structure of the explosion-proof aluminium flake, and it is downwardly convex that the explosion-proof aluminium flake is arranged in the power-off connection sheet
Lower section；In the circumferential direction of the sealing ring outer rim, it is equipped at intervals with plural convex ribs.
In above-mentioned technical proposal, related content is explained as follows:
1, in above scheme, in the circumferential direction of the sealing ring outer rim, at least three convex ribs are equipped at intervals with.
2, in above scheme, the section of the convex ribs is semicircle.
3, in above scheme, the section of the convex ribs is triangle.
4, in above scheme, the explosion-proof aluminium on piece, which also bonds, is equipped with a layer polypropylene film.
Since above-mentioned technical proposal is used, the utility model has the advantage, that compared with prior art
The utility model structure is simple, and a plurality of convex ribs are equipped in the circumferential direction of sealing ring outer edge surface, are used for and battery case
Sealing cooperation between body can effectively increase leakproofness, to reduce to part size since convex ribs have certain moulding
The high request of precision reduces manufacture difficulty, while reducing production cost.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model.
Specific embodiment
The embodiments of the present invention is illustrated by particular specific embodiment below, those skilled in the art can be by this
Content disclosed by specification understands other advantages and effect of the utility model easily.
Please refer to Fig. 1.It should be clear that this specification structure depicted in this specification institute accompanying drawings, ratio, size etc., only to cooperate
The revealed content of specification, so that those skilled in the art understands and reads, being not intended to limit the utility model can be real
The qualifications applied, therefore do not have technical essential meaning, the tune of the modification of any structure, the change of proportionate relationship or size
It is whole, in the case where not influencing the effect of the utility model can be generated and the purpose that can reach, it should all still fall in the utility model institute
The technology contents of announcement obtain in the range of capable of covering.Meanwhile in this specification it is cited as "upper", "lower", "left", "right",
The term of " centre " and " one " etc. is merely convenient to being illustrated for narration, rather than to limit the enforceable range of the utility model,
Its relativeness is altered or modified, under the content of no substantial changes in technology, when being also considered as the enforceable scope of the utility model.
As shown in Figure 1, a kind of cylindrical battery capping structure；Including the electrode steel shell 1, explosion-proof aluminium flake 3, disconnected set gradually
Electric connecting sheet 4, insulating washer 2 and sealing ring 5；The top of the explosion-proof aluminium flake 3 is arranged in the electrode steel shell 1；It is described explosion-proof
3 central area of aluminium flake is downwardly convex, and central area is in sunk structure, and the insulating washer 2 is embedded in the explosion-proof aluminium flake 3
In sunk structure, the downwardly convex lower section of the explosion-proof aluminium flake 3 is arranged in the power-off connection sheet 4；5 outer rim of sealing ring
In circumferential direction, it is equipped at intervals with plural convex ribs 6.
In the circumferential direction of 5 outer rim of sealing ring, it is equipped at intervals at least three convex ribs 6.The section of the convex ribs 6 is semicircle
Shape.The section of the convex ribs 6 may be triangle.
Also bonding is equipped with a layer polypropylene film (not shown) on the explosion-proof aluminium flake 3.
The sealing ring 5 cooperates with cylindrical battery case 7, and the convex ribs 6 and battery case 7 in 5 outer rim of sealing ring are close
Cooperation, ensure that the leakproofness of battery.
The utility model structure is simple, and a plurality of convex ribs are equipped in the circumferential direction of sealing ring outer edge surface, are used for and battery case
Sealing cooperation between body can effectively increase leakproofness, to reduce to part size since convex ribs have certain moulding
The high request of precision reduces manufacture difficulty, while reducing production cost.
The above embodiments are only illustrative of the principle and efficacy of the utility model, and not for limitation, this is practical new
Type.Any person skilled in the art can all carry out above-described embodiment under the spirit and scope without prejudice to the utility model
Modifications and changes.Therefore, such as those of ordinary skill in the art without departing from the revealed essence of the utility model
All equivalent modifications or change completed under mind and technical idea, should be covered by the claim of the utility model.
Claims (5)
1. a kind of cylindrical battery capping structure, it is characterised in that: including electrode steel shell, the explosion-proof aluminium flake, power-off set gradually
Connection sheet, insulating washer and sealing ring；The top of the explosion-proof aluminium flake is arranged in the electrode steel shell；The explosion-proof aluminium flake center
Region is downwardly convex, and central area is in sunk structure, and the insulating washer is embedded in the sunk structure of the explosion-proof aluminium flake,
The downwardly convex lower section of the explosion-proof aluminium flake is arranged in the power-off connection sheet；In the circumferential direction of the sealing ring outer rim, interval is set
There are plural convex ribs.
2. cylindrical battery capping structure according to claim 1, it is characterised in that: the circumferential direction of the sealing ring outer rim
On, it is equipped at intervals at least three convex ribs.
3. cylindrical battery capping structure according to claim 1, it is characterised in that: the section of the convex ribs is semicircle
Shape.
4. cylindrical battery capping structure according to claim 1, it is characterised in that: the section of the convex ribs is triangle
Shape.
5. cylindrical battery capping structure according to claim 1, it is characterised in that: the explosion-proof aluminium on piece, which also bonds, to be set
There is a layer polypropylene film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821108350.XU CN208622792U (en) | 2018-07-13 | 2018-07-13 | A kind of cylindrical battery capping structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821108350.XU CN208622792U (en) | 2018-07-13 | 2018-07-13 | A kind of cylindrical battery capping structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208622792U true CN208622792U (en) | 2019-03-19 |
Family
ID=65705412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821108350.XU Expired - Fee Related CN208622792U (en) | 2018-07-13 | 2018-07-13 | A kind of cylindrical battery capping structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208622792U (en) |
-
2018
- 2018-07-13 CN CN201821108350.XU patent/CN208622792U/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: 20190319 Termination date: 20190713 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |