CN202495489U - Top cover structure of power battery - Google Patents
Top cover structure of power battery Download PDFInfo
- Publication number
- CN202495489U CN202495489U CN2012200499088U CN201220049908U CN202495489U CN 202495489 U CN202495489 U CN 202495489U CN 2012200499088 U CN2012200499088 U CN 2012200499088U CN 201220049908 U CN201220049908 U CN 201220049908U CN 202495489 U CN202495489 U CN 202495489U
- Authority
- CN
- China
- Prior art keywords
- top cover
- power battery
- top cap
- structure according
- cover structure
- 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 - Lifetime
Links
- 239000007788 liquid Substances 0.000 claims abstract description 4
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 4
- 238000001746 injection moulding Methods 0.000 claims 1
- 230000008878 coupling Effects 0.000 abstract description 18
- 238000010168 coupling process Methods 0.000 abstract description 18
- 238000005859 coupling reaction Methods 0.000 abstract description 18
- 238000009413 insulation Methods 0.000 abstract description 6
- 230000010485 coping Effects 0.000 description 22
- 239000012212 insulator Substances 0.000 description 7
- 244000188472 Ilex paraguariensis Species 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000005030 aluminium foil Substances 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002360 explosive Substances 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
- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model belongs to the technical field of power battery, especially, relate to a power battery top cap structure, be in including top cap piece and setting positive post, negative pole post on the top cap piece to and annotate the liquid hole, the positive post with top cap piece turn-on connection, the negative pole post with top cap piece insulation assembly, still be equipped with current interrupt device on the top cap piece. Compared with the prior art, the utility model discloses a set up current interruption device on the top cap piece, wherein, the electric current flow direction is for reacing the positive post through bottom plate, flexible coupling, explosion-proof piece, if electric core meets accident, then because the pressure risees in the electric core, makes the explosion-proof piece break to open circuit cuts off the electric current. Therefore, on one hand, the air pressure generated when the battery is subjected to accidents such as improper charging, short circuit and the like can be discharged through pressure relief; on the other hand, the current is cut off by the current interruption device, so that the situation that the overcharge is continued to cause a greater safety accident is avoided.
Description
Technical field
The utility model belongs to the power battery technology field, relates in particular to a kind of electrokinetic cell cap structure.
Background technology
Enhancing along with development of modern society and people's environmental consciousness; More and more equipments is selected with chargeable secondary cell as power supply; Like mobile phone, notebook computer, electric tool and electric automobile or the like, this application for chargeable secondary cell provides wide space with development.
Electric automobile and energy-accumulating power station etc. generally need to use to have jumbo electrokinetic cell as power supply.These electrokinetic cells are except having high power capacity, also should have good fail safe and long cycle life etc., just can reach the standard and the demand that satisfies people of use.
In order to guarantee the fail safe of electrokinetic cell to a certain extent, a relief valve is installed on battery cap generally.When battery owing to improper charging, short circuit or be exposed to when meeting accident in the adverse circumstances such as high temperature, high-octane battery will produce a large amount of gas and temperature sharply raises, gas is washed the purpose that relief valve reaches pressure release open.The existence of relief valve can improve the security performance of battery to a certain extent, but owing to do not cut off electric core loop, can cause bigger security incident if battery continues to overcharge again.
In view of this, necessary a kind of electrokinetic cell cap structure that overcharges after can preventing battery to meet accident is provided.
The utility model content
The purpose of the utility model is: to the deficiency of prior art, and a kind of electrokinetic cell cap structure that overcharges after can preventing battery to meet accident is provided.
In order to achieve the above object, the utility model adopts following technical scheme:
A kind of electrokinetic cell cap structure; Comprise coping plate and be arranged on positive terminal, the negative terminal on the said coping plate, and liquid injection hole, said positive terminal is connected with said coping plate conducting; Said negative terminal and said coping plate insulation assembling also are provided with current interrupt device on the said coping plate.
A kind of improvement as the utility model electrokinetic cell cap structure; Said current interrupt device comprises burst disk and base plate; Said burst disk is arranged on the said coping plate; One end of said base plate is connected with said burst disk through being flexible coupling, and the other end is connected with said positive terminal with fastening bolt through collets.Said burst disk is aluminium foil, Copper Foil, and making its air pressure that breaks through THICKNESS CONTROL is 0.3MPa～0.6MPa.
As a kind of improvement of the utility model electrokinetic cell cap structure, the screw that said base plate is provided with spring fixed column and matees with said fastening bolt, said spring fixed column is arranged with secondary spring.
As a kind of improvement of the utility model electrokinetic cell cap structure, said spring fixed column and said secondary spring are two.
As a kind of improvement of the utility model electrokinetic cell cap structure, said be flexible coupling be arranged between two spring fixed columns.
As a kind of improvement of the utility model electrokinetic cell cap structure, an end of said base plate is through being flexible coupling and said burst disk is welded to connect.
As a kind of improvement of the utility model electrokinetic cell cap structure, said collets comprise at the insulating trip with holes of said floor below and the insulator cap with holes between said positive terminal and said base plate.Hole in the insulating trip with holes and fastening bolt coupling, the bottom coupling of the hole in the insulator cap with holes and fastening bolt coupling and positive terminal.
As a kind of improvement of the utility model electrokinetic cell cap structure, said positive terminal is connected through welding or riveted joint with said coping plate.
As a kind of improvement of the utility model electrokinetic cell cap structure, said coping plate be shaped as circle, ellipse or rectangle.
As a kind of improvement of the utility model electrokinetic cell cap structure, said negative terminal is assemblied on the said coping plate through the injection mo(u)lding insulation.
With respect to prior art, the utility model is through being provided with current interrupt device, wherein on coping plate; Current direction for through base plate, be flexible coupling, burst disk arrives positive terminal, if electric core meets accident, then because electric in-core voltage rise is high; Burst disk is broken, thereby open circuit cut off electric current.Can guarantee that so, on the one hand Pneumatic pipe cleaner that battery produces crosses pressure release and discharge when contingency such as improper charging, short circuit takes place; On the other hand, cut off electric current through current interrupt device, avoiding continues to overcharge causes bigger security incident.
Description of drawings
Fig. 1 is the vertical view of the utility model;
Fig. 2 is the cutaway view of the utility model;
Fig. 3 is the enlarged drawing of A part among Fig. 2;
Fig. 4 is the explosive view of the utility model;
Fig. 5 is the upright figure of the group of the utility model.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described:
Extremely shown in Figure 5 like Fig. 1; A kind of electrokinetic cell cap structure of the utility model; Comprise coping plate 3 and be arranged on positive terminal 1, the negative terminal 2 on the said coping plate 3, and liquid injection hole 4, said positive terminal 1 is connected with said coping plate 3 conductings; Said negative terminal 2 and said coping plate 3 insulation assemblings also are provided with current interrupt device 5 on the said coping plate 3.
Wherein, Said current interrupt device 5 comprises burst disk 51 and base plate 52; Said burst disk 51 is arranged on the said coping plate 3, and an end of said base plate 52 53 is connected with said burst disk 51 through being flexible coupling, and the other end is connected with said positive terminal 1 with fastening bolt 55 through collets 54.
The screw 522 (as shown in Figure 4) that said base plate 52 is provided with spring fixed column 521 and matees with said fastening bolt 55, said spring fixed column 521 is arranged with secondary spring 6.
Said spring fixed column 521 is two with said secondary spring 6, said be flexible coupling 53 be arranged between two spring fixed columns 521.
One end of said base plate 52 53 is welded to connect with said burst disk 51 through being flexible coupling.
Said collets 54 comprise at insulating trip with holes 541 below the said base plate 52 and the insulator cap with holes 542 (as shown in Figure 4) between said positive terminal 1 and said base plate 52.Hole in the insulating trip 541 with holes and fastening bolt 55 couplings, the bottom coupling of the hole in the insulator cap 542 with holes and fastening bolt 55 couplings and positive terminal 1.
Said positive terminal 1 is connected through welding or riveted joint with said coping plate 3.
Said coping plate 3 be shaped as circle, ellipse or rectangle.
Said negative terminal 2 is assemblied on the said coping plate 3 through the injection mo(u)lding insulation.
During assembling; Positive terminal 1 and coping plate 3 are in the same place through welding or riveted and fixed, and 2 of negative terminals and coping plate 3 insulation assemblings are welded on burst disk 51 on the coping plate 3 then; Two spring fixed columns 521 of base plate 52 are sheathed secondary spring 6 respectively; Being flexible coupling 53 is placed between two spring fixed columns 521, and the end that base plate 52 is provided with spring fixed column 521 53 is welded to connect with burst disk 51 through being flexible coupling, and insulating trip 541 with holes is placed in screw 522 belows of the other end of base plate 52; Insulator cap 542 with holes is then placed in the top; The hole of insulator cap 542 with holes and positive terminal 1 bottom coupling, again with fastening bolt 55 successively with fixing assembling the in bottom of insulating trip with holes 541, base plate 52, insulator cap with holes 542 and positive terminal 1, promptly accomplish the assembling of whole power battery top cover.
After having assembled, the flow direction of electric current for through base plate 52, be flexible coupling 53, burst disk 51 arrives positive terminals 1, if electric core meets accident, then because electric in-core voltage rise is high, burst disk 51 is broken, thereby open circuit cuts off electric current.Can guarantee that so, on the one hand Pneumatic pipe cleaner that battery produces crosses pressure release and discharge when contingency such as improper charging, short circuit takes place; On the other hand, cut off electric current through current interrupt device 5, avoiding continues to overcharge causes bigger security incident.
According to the announcement and the instruction of above-mentioned specification, the utility model those skilled in the art can also carry out suitable change and modification to above-mentioned execution mode.Therefore, the embodiment that discloses and describe above the utility model is not limited to is in the protection range of the claim that also should fall into the utility model to some modifications and the change of the utility model.In addition, although used some specific terms in this specification, these terms are explanation for ease just, the utility model is not constituted any restriction.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200499088U CN202495489U (en) | 2012-02-16 | 2012-02-16 | Top cover structure of power battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200499088U CN202495489U (en) | 2012-02-16 | 2012-02-16 | Top cover structure of power battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202495489U true CN202495489U (en) | 2012-10-17 |
Family
ID=47001702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200499088U Expired - Lifetime CN202495489U (en) | 2012-02-16 | 2012-02-16 | Top cover structure of power battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202495489U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103050646A (en) * | 2012-12-19 | 2013-04-17 | 宁德新能源科技有限公司 | Top cover structure of power battery |
| CN105070860A (en) * | 2015-08-10 | 2015-11-18 | 北京飞行博达电子有限公司 | Rechargeable battery |
| CN105576160A (en) * | 2014-10-09 | 2016-05-11 | 东莞新能源科技有限公司 | Power cell and power cell top cover |
| CN110649206A (en) * | 2019-09-29 | 2020-01-03 | 惠州亿纬锂能股份有限公司 | Explosion-proof valve assembly, top cover and battery |
-
2012
- 2012-02-16 CN CN2012200499088U patent/CN202495489U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103050646A (en) * | 2012-12-19 | 2013-04-17 | 宁德新能源科技有限公司 | Top cover structure of power battery |
| CN103050646B (en) * | 2012-12-19 | 2016-04-13 | 宁德新能源科技有限公司 | A kind of top cover structure of power battery |
| CN105576160A (en) * | 2014-10-09 | 2016-05-11 | 东莞新能源科技有限公司 | Power cell and power cell top cover |
| CN105070860A (en) * | 2015-08-10 | 2015-11-18 | 北京飞行博达电子有限公司 | Rechargeable battery |
| CN105070860B (en) * | 2015-08-10 | 2017-12-08 | 北京飞行博达电子有限公司 | a rechargeable battery |
| CN107732041A (en) * | 2015-08-10 | 2018-02-23 | 北京飞行博达电子有限公司 | A kind of rechargeable battery |
| CN110649206A (en) * | 2019-09-29 | 2020-01-03 | 惠州亿纬锂能股份有限公司 | Explosion-proof valve assembly, top cover and battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210603 Address after: No.1, Xinghui Road, Songshanhu Park, Dongguan, Guangdong 523000 Patentee after: Dongguan xinneng'an Technology Co.,Ltd. Address before: 523808, No. 1 Industrial West Road, Songshan Industrial Park, Dongguan, Guangdong Patentee before: Dongguan Amperex Technology Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121017 |