CN107579198A - A kind of capping structure with liquid injection hole explosion-proof valve - Google Patents
A kind of capping structure with liquid injection hole explosion-proof valve Download PDFInfo
- Publication number
- CN107579198A CN107579198A CN201710763319.3A CN201710763319A CN107579198A CN 107579198 A CN107579198 A CN 107579198A CN 201710763319 A CN201710763319 A CN 201710763319A CN 107579198 A CN107579198 A CN 107579198A
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- CN
- China
- Prior art keywords
- valve
- positive pole
- explosion
- liquid
- positive
- 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.)
- Pending
Links
- 238000002347 injection Methods 0.000 title claims abstract description 14
- 239000007924 injection Substances 0.000 title claims abstract description 14
- 239000007788 liquid Substances 0.000 title claims abstract description 10
- 238000003825 pressing Methods 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims abstract description 10
- 238000001914 filtration Methods 0.000 claims abstract description 9
- 239000003792 electrolyte Substances 0.000 abstract description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000000203 mixture Substances 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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)
- Filling, Topping-Up Batteries (AREA)
Abstract
The invention discloses a kind of capping structure with liquid injection hole explosion-proof valve, by positive terminal, sealing ring, explosion-proof valve, positive pole breaks piece, liquid-filling valve, positive pole ear forms, liquid-filling valve is installed in the middle part of positive pole ear, it is by valve body, ball sealer, spring, filter pressing plate composition, the section of valve body is pyramidal structure, ball sealer is provided with it, the lower section of ball sealer is provided with the spring for coordinating guiding with it, spring bottom end is provided with filtering pressing plate, filter pressing plate and the spacing cooperation of reservoir channel below, the upper surface of positive pole ear is welded with positive pole and breaks piece, the upper end that positive pole breaks piece is welded on positive contact piece, Gask-O-Seal has been withheld successively on positive contact piece, explosion-proof valve and positive terminal and encapsulated by sealing ring.The convenient injection electrolyte of the present invention, is balanced to battery core internal pressure at any time, and can automatically open up in extreme circumstances, prevents battery core from exploding, improves the security and production efficiency of battery, facilitates the production process of battery.
Description
Technical field：
The present invention relates to battery cap field, relates generally to a kind of capping structure with liquid injection hole explosion-proof valve.
Background technology：
Now in society, battery has generally been dissolved into the every nook and cranny of our lives, small to arrive battery of mobile phone, is moved to electric automobile greatly
Power battery, it may be said that battery is ubiquitous.Energy source of the electrokinetic cell as electric automobile, is that electric automobile is main
Part.
In the prior art, the installation of cylindrical battery cap structure first is installation battery cap structure after first fluid injection, instead
Cannot just realize.If artificially in Assembling Production, fluid injection after battery cap is first installed, then electrolyte can not inject electricity
In the shell of pond, whole battery is so caused to be scrapped.Secondly the installation of cylindrical battery cap structure wants first fluid injection to install battery cap again
Structure, and when the box hat full of electrolyte is installing battery cap, there is very big potential safety hazard, for example electrolyte shakes in installation
Can be splashed in the case of dynamic etc..And the blast resistance construction of cylindrical battery cap does not have a balanced structure, the air pressure in battery steel shell
Differ and surely balance at any time, so easily cause local pressure to increase suddenly and cause battery explosion.
Therefore, the research and development of novel power battery technology and its safety are significant.
The content of the invention：
The defects of the object of the invention is exactly to make up prior art, there is provided a kind of capping structure with liquid injection hole explosion-proof valve, both
Electrolyte can be very easily injected, battery core internal pressure can be balanced at any time again, and in extreme circumstances can be automatic
Open, prevent battery core from exploding.
The present invention is achieved by the following technical solutions：
A kind of capping structure with liquid injection hole explosion-proof valve, it is characterised in that：Broken by positive terminal, sealing ring, explosion-proof valve, positive pole
Piece, liquid-filling valve, positive pole ear composition, are provided with liquid-filling valve in the middle part of the positive pole ear, and the liquid-filling valve is check valve, its by
Valve body, ball sealer, spring, filtering pressing plate composition, the section of the valve body is pyramidal structure, is provided with ball sealer in it, described close
The lower section of blocking is provided with the spring for coordinating guiding with it, and the spring bottom end is provided with filtering pressing plate, described to filter under pressing plate and its
The spacing cooperation of reservoir channel of side, the upper surface of the positive pole ear are welded with positive pole and break piece, and the positive pole breaks the upper of piece
End be welded on positive contact piece, withheld successively on the positive contact piece Gask-O-Seal, explosion-proof valve and positive terminal and
Encapsulated by sealing ring.
The upper-end part of driving of described liquid-filling valve is at the valve body installing port of explosion-proof valve, and its end face is concordant in explosion-proof valve, institute
State middle part of the lower end part in positive pole ear of the valve body of liquid-filling valve.
The section of described spring is the pyramidal structure coordinated with body cavity.
Liquid-filling valve described above has forward conduction, the effect of reverse check, and its operation principle and hydraulically-controlled one-way valve have
Point is similar.After battery cap structure installation, electrolyte is directly entered in liquid-filling valve by positive terminal, and liquid-filling valve is
One check valve, after in the valve body that electrolyte reaches liquid-filling valve, produce pressure and push filtering pressing plate open, such electrolyte is with regard to light
Into in box hat.Otherwise when the electrolyte for injecting box hat will flow out liquid-filling valve, ball sealer will closely paste dead valve body, so as to hinder
Only electrolyte flows out, and reaches the purpose for preventing battery core leakage.
When producing a large amount of gases in battery core, the pressure in battery steel shell increases rapidly.When reaching certain limit, battery cover
Explosion-proof valve on cap can not bear pressure and rupture its film, the gas inside box hat so be discharged, so that its internal pressure
It is unlikely to excessive and produces blast.
It is an advantage of the invention that：
The present invention is reasonable in design, both can very easily inject electrolyte, and battery core internal pressure can be carried out at any time again
Balance, and can automatically open up in extreme circumstances, prevent battery core from exploding.The security of battery is so greatly improved,
The production process of battery has been also convenient for simultaneously, improves the production efficiency of battery to a certain extent.
Brief description of the drawings：
Fig. 1 is the configuration schematic diagram of the present invention.
Fig. 2 is confined explosion's structural representation of the present invention.
Fig. 3 is the sectional view after present invention assembling.
Fig. 4 is the structural representation of liquid-filling valve.
Embodiment：
Referring to accompanying drawing.
A kind of capping structure with liquid injection hole explosion-proof valve, by being fitted in the positive terminal being equipped with the box hat 08 of battery core 07
01st, sealing ring 02, explosion-proof valve 03, positive pole break 04, liquid-filling valve 05, positive pole ear 06 form, in the positive pole ear 06
Portion is provided with liquid-filling valve 05, and the liquid-filling valve 05 is check valve, and it is by valve body 05A, ball sealer 05B, spring 05C, filtering pressing plate
05D is formed, and the section of the valve body 05A is pyramidal structure, is provided with ball sealer 05B in it, the lower section of the ball sealer 05B is provided with
Coordinate the spring 05C of guiding with it, the spring 05C bottoms are provided with filtering pressing plate 05D, the filtering pressing plate 05D and below
The spacing cooperation of reservoir channel, the upper surface of the positive pole ear 06 is welded with positive pole and breaks piece 04, and the positive pole breaks piece 04
Upper end be welded on positive contact piece 09, Gask-O-Seal 10, explosion-proof valve 03 have been withheld on the positive contact piece 09 successively
02 is encapsulated with positive terminal 01 and by sealing ring, and steel loop is provided between sealing ring 02 and explosion-proof valve 03, plays sealing protection
Effect..
The upper-end part of driving of described liquid-filling valve 05 is at the valve body installing port of explosion-proof valve 03, and its end face is put down in explosion-proof valve
Together, the valve body 05A of the liquid-filling valve 05 lower end part is in the middle part of positive pole ear 06.
Described spring 05C section is the pyramidal structure coordinated with valve body 05A inner chambers.
Claims (3)
- A kind of 1. capping structure with liquid injection hole explosion-proof valve, it is characterised in that：Drawn by positive terminal, sealing ring, explosion-proof valve, positive pole Part, liquid-filling valve, positive pole ear are formed, and liquid-filling valve is provided with the middle part of the positive pole ear, and the liquid-filling valve is check valve, its It is made up of valve body, ball sealer, spring, filtering pressing plate, the section of the valve body is pyramidal structure, is provided with ball sealer in it, described The lower section of ball sealer is provided with the spring for coordinating guiding with it, and the spring bottom end is provided with filtering pressing plate, described to filter pressing plate and its The spacing cooperation of reservoir channel of lower section, the upper surface of the positive pole ear are welded with positive pole and break piece, and the positive pole breaks piece Upper end is welded on positive contact piece, and Gask-O-Seal, explosion-proof valve and positive terminal have been withheld successively on the positive contact piece And encapsulated by sealing ring.
- 2. the capping structure according to claim 1 with liquid injection hole explosion-proof valve, it is characterised in that：Described liquid-filling valve it is upper End is located at the valve body installing port of explosion-proof valve, and its end face is concordant in explosion-proof valve, the lower end part of the valve body of the liquid-filling valve In the middle part of positive pole ear.
- 3. the capping structure according to claim 1 with liquid injection hole explosion-proof valve, it is characterised in that：The section of described spring For the pyramidal structure coordinated with body cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710763319.3A CN107579198A (en) | 2017-08-30 | 2017-08-30 | A kind of capping structure with liquid injection hole explosion-proof valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710763319.3A CN107579198A (en) | 2017-08-30 | 2017-08-30 | A kind of capping structure with liquid injection hole explosion-proof valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107579198A true CN107579198A (en) | 2018-01-12 |
Family
ID=61030335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710763319.3A Pending CN107579198A (en) | 2017-08-30 | 2017-08-30 | A kind of capping structure with liquid injection hole explosion-proof valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107579198A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108807833A (en) * | 2018-06-25 | 2018-11-13 | 银隆新能源股份有限公司 | A kind of battery liquid-filling structure and battery |
| CN112223365A (en) * | 2020-09-27 | 2021-01-15 | 重庆三创印刷有限公司 | Cutting device of printing machine |
| CN117691204A (en) * | 2023-12-11 | 2024-03-12 | 无锡市金杨新材料股份有限公司 | Battery with intensive tab |
| EP4102635A4 (en) * | 2020-02-06 | 2024-04-03 | Lg Energy Solution Ltd | Cap assembly, and secondary battery and battery pack comprising same |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2349417Y (en) * | 1998-10-07 | 1999-11-17 | 贡永根 | External closing type dropping-proof fluid-delivery valve |
| US6326100B1 (en) * | 1999-04-16 | 2001-12-04 | Samsung Sdi Co., Ltd. | Cylindrical secondary battery |
| CN201673945U (en) * | 2010-04-29 | 2010-12-15 | 北京天路能源有限公司 | Lithium-ion battery output device and lithium-ion battery with the same |
| CN201812870U (en) * | 2010-08-05 | 2011-04-27 | 李学智 | Ball-type safety valve with power lithium batteries |
| CN201877473U (en) * | 2010-11-30 | 2011-06-22 | 襄樊金博泰塑业有限公司 | Cover plate for lithium battery |
| CN202165647U (en) * | 2011-07-15 | 2012-03-14 | 深圳市吉阳自动化科技有限公司 | Liquid-filling check valve and lithium battery liquid filling device |
| CN202217713U (en) * | 2011-08-31 | 2012-05-09 | 浙江谷神能源科技股份有限公司 | Low-voltage anti-explosion combined cover for lithium ion battery |
| CN104241568A (en) * | 2013-06-09 | 2014-12-24 | 赵宽 | Valve with isolated liquid injection and constant-pressure functions of lithium ion battery |
| CN207199741U (en) * | 2017-08-30 | 2018-04-06 | 安徽环鑫电子有限公司 | A kind of capping structure with liquid injection hole explosion-proof valve |
-
2017
- 2017-08-30 CN CN201710763319.3A patent/CN107579198A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2349417Y (en) * | 1998-10-07 | 1999-11-17 | 贡永根 | External closing type dropping-proof fluid-delivery valve |
| US6326100B1 (en) * | 1999-04-16 | 2001-12-04 | Samsung Sdi Co., Ltd. | Cylindrical secondary battery |
| CN201673945U (en) * | 2010-04-29 | 2010-12-15 | 北京天路能源有限公司 | Lithium-ion battery output device and lithium-ion battery with the same |
| CN201812870U (en) * | 2010-08-05 | 2011-04-27 | 李学智 | Ball-type safety valve with power lithium batteries |
| CN201877473U (en) * | 2010-11-30 | 2011-06-22 | 襄樊金博泰塑业有限公司 | Cover plate for lithium battery |
| CN202165647U (en) * | 2011-07-15 | 2012-03-14 | 深圳市吉阳自动化科技有限公司 | Liquid-filling check valve and lithium battery liquid filling device |
| CN202217713U (en) * | 2011-08-31 | 2012-05-09 | 浙江谷神能源科技股份有限公司 | Low-voltage anti-explosion combined cover for lithium ion battery |
| CN104241568A (en) * | 2013-06-09 | 2014-12-24 | 赵宽 | Valve with isolated liquid injection and constant-pressure functions of lithium ion battery |
| CN207199741U (en) * | 2017-08-30 | 2018-04-06 | 安徽环鑫电子有限公司 | A kind of capping structure with liquid injection hole explosion-proof valve |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108807833A (en) * | 2018-06-25 | 2018-11-13 | 银隆新能源股份有限公司 | A kind of battery liquid-filling structure and battery |
| EP4102635A4 (en) * | 2020-02-06 | 2024-04-03 | Lg Energy Solution Ltd | Cap assembly, and secondary battery and battery pack comprising same |
| CN112223365A (en) * | 2020-09-27 | 2021-01-15 | 重庆三创印刷有限公司 | Cutting device of printing machine |
| CN112223365B (en) * | 2020-09-27 | 2022-03-29 | 重庆三创印刷有限公司 | Cutting device of printing machine |
| CN117691204A (en) * | 2023-12-11 | 2024-03-12 | 无锡市金杨新材料股份有限公司 | Battery with intensive tab |
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