CN201608214U - Double explosion protection combined cover cap for cylindrical battery - Google Patents
Double explosion protection combined cover cap for cylindrical battery Download PDFInfo
- Publication number
- CN201608214U CN201608214U CN2009203177050U CN200920317705U CN201608214U CN 201608214 U CN201608214 U CN 201608214U CN 2009203177050 U CN2009203177050 U CN 2009203177050U CN 200920317705 U CN200920317705 U CN 200920317705U CN 201608214 U CN201608214 U CN 201608214U
- Authority
- CN
- China
- Prior art keywords
- cylindrical battery
- explosion
- cap
- cover cap
- explosion protection
- 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
Links
- 238000004880 explosion Methods 0.000 title abstract description 14
- 239000002184 metal Substances 0.000 claims abstract description 5
- 239000011148 porous material Substances 0.000 claims description 3
- 238000004080 punching Methods 0.000 claims description 2
- 230000009977 dual effect Effects 0.000 description 10
- 239000012535 impurity Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004643 material aging Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Gas Exhaust Devices For Batteries (AREA)
Abstract
The utility model relates to a double explosion protection combined cover cap for a cylindrical battery, comprising an upper cap and a bottom cover which are fixed together. The bottom cover is provided with an explosion protection hole; the upper cap is provided with a plurality of exhaust holes; a spiral spring and a thin rubber sheet are sequentially arranged between the upper cap and the bottom cover from top down, and an elastic metal sheet is pressed on the thin rubber sheet which is hermetically covered on the explosion protection hole; and the bottom cover is further punched with an explosion protection groove adjacent to the explosion protection hole. Therefore, the double explosion protection combined cover cap for the cylindrical battery, which has higher safety performance, is provided.
Description
Technical field
The utility model relates to a kind of battery cap, particularly a kind of dual explosion-proof combined block that is used for the cylindrical alkali secondary cell.
Background technology
At present, the explosion-protection equipment that is applied to cylindrical battery is combination cover cap normally, its composition comprises a circular bottom, one circle goes up cap and accompanies explosion-proof rubber stopper and combines in the mode of welding, wherein there is a steam vent in the bottom centre and is sealed by rubber stopper, and when cell internal pressure reached certain limit, gas up pushed away ball, lose heart by the elastic force of rubber stopper own, prevent that cell internal pressure is excessive and produce blast.But because temperature is bigger to rubber stopper influence itself, long term storage or use are behind the material aging, rubber stopper follows the string, cause the battery cap explosion protection system to lose efficacy thus, cause battery to keep one's end up and produce blast, cause serious hidden danger for the security performance of battery.
The utility model content
At the defective of above-mentioned prior art, the purpose of this utility model provides a kind of dual explosion-proof combined block that is used for cylindrical battery with higher-security energy.
For achieving the above object, the utility model adopts following technical scheme:
A kind of combination cover cap that is used for cylindrical battery, comprise the last cap and the bottom that are fixed together, described bottom is provided with explosionproof hole, the described cap of going up is provided with the plurality of rows pore, the described TR thin rubber sheet that is provided with spiral spring and the flexible sheet metal of pressing between cap and the bottom from top to down successively of going up, described TR thin rubber sheet covers hermetically on described explosionproof hole, and going back punching press on the described bottom has the explosion-proof groove adjacent with described explosionproof hole.
The combination cover cap that is used for cylindrical battery of the present utility model, wherein said explosion-proof groove is arranged on the upper wall or lower wall of described bottom.
The combination cover cap that is used for cylindrical battery of the present utility model, wherein said explosionproof hole diameter are 2 to 4mm.
The combination cover cap that is used for cylindrical battery of the present utility model, wherein said explosion-proof groove are ellipse, circle, square, rectangle, rhombus, triangle.
The combination cover cap that is used for cylindrical battery of the present utility model, wherein said steam vent are 1 to 4.
The dual explosion-proof combined block that is used for cylindrical battery of the present utility model replaces traditional rubber stopper with spiral spring, has eliminated aging the following the string of elastomeric material and has caused the hidden danger of battery explosion; On bottom, be provided with an explosion-proof groove adjacent, form the second cover explosion protection system, when the spring explosion protection system lost efficacy with explosionproof hole, when cell internal pressure reaches certain limit, explosion-proof groove will be opened disappointing, has avoided battery explosion phenomenon, has further strengthened the security performance that battery uses.
Because the explosionproof hole diameter is 2 to 4mm, bigger than the explosionproof hole diameter of tradition block again, therefore when the battery accidental short circuit, battery cap has enough big exhaust passage to come unobstructed drainage gas and impurity, has eliminated the hidden danger of impurity obstruction inside battery gaseous emission.
Description of drawings
Fig. 1 is the profile that the utility model is used for the dual explosion-proof combined block of cylindrical battery;
Fig. 2 is the profile that the utility model is used for the another kind of embodiment of dual explosion-proof combined block of cylindrical battery;
Fig. 3 is the bottom vertical view of the utility model dual explosion-proof combined block of being used for cylindrical battery.
Embodiment
Below in conjunction with accompanying drawing the execution mode that the utility model is used for the dual explosion-proof combined block of cylindrical battery is elaborated.
Referring to Fig. 1 and Fig. 3, the first kind of embodiment that is used for the dual explosion-proof combined block of cylindrical battery of the present utility model, comprise cap 1 and bottom 5, lump together by soldering group between last cap 1 and the bottom 5,1 to 4 steam vent 8 is arranged on the last cap 1, an explosionproof hole 6 is arranged in the middle of the bottom 5, side blow at explosionproof hole 6 is pressed with explosion-proof groove 7, the impact style of explosion-proof groove 7 is two kinds: present embodiment is an impact style from top to bottom, being about to explosion-proof groove 7 is arranged on the upper wall of bottom 5, explosion-proof groove 7 is oval, circular, square, rectangle, rhombus, shapes such as triangle, from top to bottom be provided with the TR thin rubber sheet 4 of the flexible sheet metal 3 of spiral spring 2 and pressing in the space between last cap 1 and the bottom 5 successively, sheet metal 3 on the TR thin rubber sheet 4 contacts an end of spiral spring 2 up, explosionproof hole 6 on the TR thin rubber sheet 4 sealing bottoms 5, the diameter of explosionproof hole 6 are 2 to 4mm.
Another kind of embodiment of the present utility model as shown in Figure 2, is with the difference of first kind of embodiment, and the impact style of explosion-proof groove 7 is for from bottom to top, and promptly explosion-proof groove 7 is arranged on the lower wall of bottom 5.
The dual explosion-proof combined block that is used for cylindrical battery of the present utility model is covered at battery, when inner pressure of battery increases to 2.0 to 4.0MPa, gas is compounded with the TR thin rubber sheet 4 of elastic metallic 3 by explosion-proof pore 6 compressings of bottom 5, spring 2 is subjected to force compresses, TR thin rubber sheet 4 moves up, and gas is discharged the battery inner chamber by steam vent 8.If the spring explosion protection system lost efficacy, inside battery surpasses 4.0Mpa, and explosionproof hole 6 can't be opened discharge gas, and when pressure reached 4.0 to 6.0Mpa, the explosion-proof groove 7 on the bottom 5 will be broken through by gas pressure, in time discharges gas, has avoided battery explosion.
Above embodiment is described preferred implementation of the present utility model; be not that scope of the present utility model is limited; under the prerequisite that does not break away from the utility model design spirit; various distortion and improvement that the common engineers and technicians in this area make the technical solution of the utility model all should fall in the definite protection range of claims of the present utility model.
Claims (5)
1. combination cover cap that is used for cylindrical battery, comprise the last cap (1) and the bottom (5) that are fixed together, described bottom (5) is provided with explosionproof hole (6), it is characterized in that, the described cap (1) of going up is provided with plurality of rows pore (8), the described TR thin rubber sheet (4) that is provided with spiral spring (2) and the flexible sheet metal of pressing (3) between cap (1) and the bottom (5) from top to down successively of going up, described TR thin rubber sheet (4) covers hermetically on described explosionproof hole (6), and described bottom (6) is upward gone back punching press the explosion-proof groove (7) adjacent with described explosionproof hole (7).
2. the combination cover cap that is used for cylindrical battery according to claim 1 is characterized in that, described explosion-proof groove (7) is arranged on the upper wall or lower wall of described bottom (5).
3. the combination cover cap that is used for cylindrical battery according to claim 2 is characterized in that, described explosionproof hole (6) diameter is 2 to 4mm.
4. the combination cover cap that is used for cylindrical battery according to claim 3 is characterized in that, described explosion-proof groove (7) is ellipse, circle, square, rectangle, rhombus, triangle.
5. the combination cover cap that is used for cylindrical battery according to claim 4 is characterized in that, described steam vent (8) is 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203177050U CN201608214U (en) | 2009-12-17 | 2009-12-17 | Double explosion protection combined cover cap for cylindrical battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203177050U CN201608214U (en) | 2009-12-17 | 2009-12-17 | Double explosion protection combined cover cap for cylindrical battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201608214U true CN201608214U (en) | 2010-10-13 |
Family
ID=42952917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203177050U Expired - Fee Related CN201608214U (en) | 2009-12-17 | 2009-12-17 | Double explosion protection combined cover cap for cylindrical battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201608214U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102332544A (en) * | 2010-12-31 | 2012-01-25 | 东莞新能源科技有限公司 | Lithium ion battery and safety cap thereof |
| CN109742701A (en) * | 2019-03-13 | 2019-05-10 | 辽宁海浪防爆电器有限责任公司 | A kind of moisture-proof anti-explosion terminal box convenient for wiring |
| CN115621633A (en) * | 2022-09-28 | 2023-01-17 | 厦门海辰储能科技股份有限公司 | End cover, battery package and consumer |
-
2009
- 2009-12-17 CN CN2009203177050U patent/CN201608214U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102332544A (en) * | 2010-12-31 | 2012-01-25 | 东莞新能源科技有限公司 | Lithium ion battery and safety cap thereof |
| CN109742701A (en) * | 2019-03-13 | 2019-05-10 | 辽宁海浪防爆电器有限责任公司 | A kind of moisture-proof anti-explosion terminal box convenient for wiring |
| CN115621633A (en) * | 2022-09-28 | 2023-01-17 | 厦门海辰储能科技股份有限公司 | End cover, battery package and consumer |
| CN115621633B (en) * | 2022-09-28 | 2024-01-23 | 厦门海辰储能科技股份有限公司 | End cover, battery pack and electric equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Henan Huanyu New Energy Technology Co., Ltd. Assignor: Cheng Shuguo|Henan Huanyu power Limited by Share Ltd Contract record no.: 2013410000081 Denomination of utility model: Double explosion protection combined cover cap for cylindrical battery Granted publication date: 20101013 License type: Exclusive License Record date: 20130925 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20150331 Granted publication date: 20101013 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20160330 Granted publication date: 20101013 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20170515 Granted publication date: 20101013 |
|
| PP01 | Preservation of patent right | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20180515 Granted publication date: 20101013 |
|
| PD01 | Discharge of preservation of patent | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101013 Termination date: 20171217 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |