CN206282915U - A kind of outer penetration type side exhaust battery explosion-proof cap - Google Patents
A kind of outer penetration type side exhaust battery explosion-proof cap Download PDFInfo
- Publication number
- CN206282915U CN206282915U CN201621274965.0U CN201621274965U CN206282915U CN 206282915 U CN206282915 U CN 206282915U CN 201621274965 U CN201621274965 U CN 201621274965U CN 206282915 U CN206282915 U CN 206282915U
- Authority
- CN
- China
- Prior art keywords
- cap body
- cap
- exhaust
- type side
- penetration type
- 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
-
- 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 discloses a kind of outer penetration type side exhaust battery explosion-proof cap, including cap body and the sealing shroud located at cap body sidepiece, it is characterised in that：The cap body bottom is provided with the sharp portion stretched in cell body, the exhaust block being fixed in cap body is provided between sealing shroud and cap body, exhaust block is provided with the exhaust passage for being connected with extraneous and cell body inside respectively, and the bottom of exhaust block is provided with after being pressurized can be toward the diaphragm seal of deformation at sharp portion.Outer penetration type side exhaust battery explosion-proof cap high safety of the present utility model simultaneously can improve pressure at expulsion stability in cell body.
Description
Technical field
The utility model is related to a kind of building block of battery, particularly relates to a kind of battery explosion-proof cap.
Background technology
Battery is the most frequently used portable power devices of people, and with the continuous reinforcement of environmental consciousness, chargeable electricity
Increasingly favored by consumer in pond.Battery is general when being charged to be carried out by way of series connection, so charging
In journey larger charging current can be there is in whole series battery.When overcharging occurs in battery pack, the voltage of battery can be with
The increase of polarization and rapidly rise, and cause the fast decoupled of battery electrolyte inside.Decomposing phenomenon can discharge great heat
Amount and a large amount of gases, sharply increase the internal pressure of battery, finally produce the phenomenon of battery explosion.Go out during in order to avoid over-charging of battery
Existing explosion phenomenon, can typically set explosion-protection equipment, and set release on the axis direction of battery in existing rechargeable battery
Hole.Bear down on one out proof assembl in being produced during using over-charging of battery, and gas is discharged cell body from steam vent.However, traditional
Proof assembl there are two significant deficiencies.First, traditional explosion-protection equipment leads to typically using the realization of formula exhaust structure is burst
The continuous increase of air pressure in cell body is crossed, burst disk is broken at explosion-proof trace, so as to realize the discharge of gas.However, being added
Work means and the limitation of explosion-proof trace position, the fracture pressure of burst disk are difficult precise control, so as to cause explosion-protection equipment to bear
Pressure be also not quite similar, the pressure at expulsion of battery is differed greatly.Second, pressure relief vent is located at the front of cell body, when it enters
The gentle cognition of electrolyte is directly gone out from pressure relief vent during row release, can be deposited when the situation causes user to dismantle battery
In certain potential safety hazard.Therefore, the explosion-proof cap structure of existing rechargeable battery still awaits further improvement.
The content of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, there is provided a kind of high safety simultaneously can improve battery
The outer penetration type side exhaust battery explosion-proof cap of internal pressure at expulsion stability.
What goal of the invention of the present utility model was realized in：A kind of outer penetration type side exhaust battery explosion-proof cap, including
Cap body and the sealing shroud located at cap body sidepiece, it is characterised in that：The cap body bottom is provided with the sharp portion stretched in cell body, close
The exhaust block being fixed in cap body is provided between big envelope and cap body, exhaust block is provided with and is connected with extraneous and cell body inside respectively
Exhaust passage, the bottom of exhaust block is provided with after being pressurized can be toward the diaphragm seal deformed at sharp portion.
Furtherly, spacer is provided between diaphragm seal and exhaust block.
Furtherly, spacer and diaphragm seal are integrated machine-shaping.
Furtherly, fixed seat is provided between sharp portion and cap body.
Optimized according to said structure, sealing shroud coats the sidepiece of cap body, exhaust block and diaphragm seal.
The utility model is improved to the battery explosion-proof cap of prior art, and its advantage is as follows：
1st, in outer penetration type side exhaust battery explosion-proof cap of the present utility model, using elastic sealing film and the group of sharp portion
Close structure.Occur deformation in the cell body under the promotion of pressure by diaphragm seal, and moved toward the direction of sharp portion.Work as sharp portion
After diaphragm seal is pierced through, gas can be gone out from the position pierced through in cell body, make further to expand at puncture.The structure can be significantly
Reduce the deformation quantity after the requirement on machining accuracy of explosion-protection equipment, and diaphragm seal compression to be relatively fixed, it can be ensured that gas in cell body
The pressure stability of pressure triggering explosion-protection equipment, has prevented the appearance of pressure at expulsion difference in cell body.
2nd, in outer penetration type side exhaust battery explosion-proof cap of the present utility model, using lateral exhaust structure.Work as diaphragm seal
After pierced, laterally discharge battery is external through exhaust passage for gas.Due to gas discharge direction cell body radial position
On, cap body sidepiece is gone out with barrier effect to gas, thus gas can obtain stronger deceleration and cushioning effect when going out,
Eliminate the potential safety hazard that gas rapidly sprays and produces.
3rd, in outer penetration type side exhaust battery explosion-proof cap of the present utility model, sealing shroud is cap body, exhaust block and sealing
The sidepiece cladding of film.The structure can improve the reliability of cap body, exhaust block and diaphragm seal connection, and improve each unit in explosion-proof cap
Air-tightness between part, so as to ensure the stability that explosion-proof cap is vented on triggering.
Brief description of the drawings
Accompanying drawing 1 is the structural representation of the utility model most preferred embodiment；
Accompanying drawing 2 is the structural representation after the deformation of the utility model diaphragm seal；
Accompanying drawing 3 is the connection diagram of the utility model sealing shroud, cap body, exhaust block and diaphragm seal.
Identified in figure as follows：Cap body 1, sealing shroud 2, sharp portion 3, exhaust block 41, exhaust passage 42, diaphragm seal 5, spacer
6th, fixed seat 7.
Specific embodiment
The utility model will be further described below in conjunction with the accompanying drawings.
With reference to the accompanying drawings 1, shown in accompanying drawing 2 and accompanying drawing 3, outer penetration type side exhaust battery explosion-proof cap of the present utility model is main
Including cap body 1 and sealing shroud 2.Sealing shroud 2 is located at the outer of cap body 1, its sealing being used between cap body 1 and battery container.Cap
The bottom of body 1 is provided with sharp portion 3, and one end of sharp portion 3 is fixed on the inner top surface of cap body 1, and cell body is then stretched in sharp one end
It is interior.Exhaust block 41 is provided between sealing shroud 2 and cap body 1, exhaust block 41 is fixed in cap body 1, and which is provided with respectively with the external world
The exhaust passage 42 connected with cell body inside.The bottom of exhaust block 41 is provided with diaphragm seal 5, and diaphragm seal 5 can be toward spine after being pressurized
Deform at portion 3.When phenomenon occurs overcharging in battery, as the air pressure in cell body constantly increases, diaphragm seal 5 is constantly swollen therewith
It is swollen.When in the top pressure of diaphragm seal 5 to sharp portion 3, the i.e. pierceable diaphragm seal 5 of sharp portion 3, gas is from the portion pierced through in cell body
Position is gone out, and as the continuous discharge of gas makes the position of puncture further expand, so as to ensure that gas can be discharged quickly.In order to
Make sharp portion 3 more stable with the connection of cap body 1, fixed seat 7 can be set between sharp portion 3 and cap body 1.The setting of fixed seat 7 can
Sharp portion 3 is avoided to produce skidding when diaphragm seal 5 is with sharp end thereof contacts, so as to ensure the stabilization of the work of sharp portion 3
Property.
Exhaust block 41 is coated in cap body 1, and exhaust passage 42 is at least two, and is evenly distributed on the inner side of exhaust block 41
On wall.In fact, exhaust passage 42 can carry out flexible modulation according to the size of battery, can be two, three or four.Adopt
Exhaust passage 42 is set with even distribution pattern, the area of gas discharge can be increased, so as to accelerate the release of gas in cell body
Speed.Meanwhile, gas transverse discharge battery is external, and the sidepiece of cap body 1 is gone out with barrier effect to gas, thus gas goes out
When can obtain stronger deceleration and cushioning effect.
Spacer 6 is provided between diaphragm seal of the present utility model 5 and exhaust block 41, the effect of spacer 6 is to improve sealing
The stability that film 5 is connected with exhaust block 41, so as to improve the overall air-tightness of explosion-proof cap.In order to further strengthen diaphragm seal 5
To the sealing effectiveness in cell body, spacer 6 and diaphragm seal 5 can be used and be integrally machined shaping.
Sealing shroud of the present utility model 2 coats the sidepiece of cap body 1, exhaust block 41 and diaphragm seal 5, in fact, sealing shroud 2
The sidepiece of cap body 1, exhaust block 41 and diaphragm seal 5 can be coated successively after mounting.Cap body 1, exhaust block 41 and diaphragm seal 5 can groups
Into the initial alignment structure between diaphragm seal 5 and sharp portion 3, it is ensured that diaphragm seal 5 can be by spine after identical expansion displacement
Portion 3 pierces through.
Above-mentioned specific embodiment is only the preferable specific embodiment of the utility model effect, all outer with of the present utility model
The identical or equivalent structure of penetration type side exhaust battery explosion-proof cap, in protection domain of the present utility model.
Claims (5)
1. a kind of outer penetration type side is vented battery explosion-proof cap, including cap body (1) and the sealing shroud (2) located at cap body (1) sidepiece,
It is characterized in that：Cap body (1) bottom is provided with the sharp portion (3) stretched in cell body, between sealing shroud (2) and cap body (1)
The exhaust block (41) being fixed in cap body (1) is provided with, exhaust block (41) is provided with what is connected with extraneous and cell body inside respectively
Exhaust passage (42), the bottom of exhaust block (41) is provided with after being pressurized can be toward the diaphragm seal (5) of sharp portion (3) place deformation.
2. outer penetration type side is vented battery explosion-proof cap according to claim 1, it is characterised in that：The diaphragm seal (5) with
Spacer (6) is provided between exhaust block (41).
3. outer penetration type side is vented battery explosion-proof cap according to claim 2, it is characterised in that：The spacer (6) and
Diaphragm seal (5) is integrated machine-shaping.
4. outer penetration type side is vented battery explosion-proof cap according to claim 1, it is characterised in that：The sharp portion (3) with
Fixed seat (7) is provided between cap body (1).
5. according to any one outer penetration type side exhaust battery explosion-proof cap of Claims 1-4, it is characterised in that：It is described
Sealing shroud (2) coats the sidepiece of cap body (1), exhaust block (41) and diaphragm seal (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621274965.0U CN206282915U (en) | 2016-11-25 | 2016-11-25 | A kind of outer penetration type side exhaust battery explosion-proof cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621274965.0U CN206282915U (en) | 2016-11-25 | 2016-11-25 | A kind of outer penetration type side exhaust battery explosion-proof cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206282915U true CN206282915U (en) | 2017-06-27 |
Family
ID=59083960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621274965.0U Expired - Fee Related CN206282915U (en) | 2016-11-25 | 2016-11-25 | A kind of outer penetration type side exhaust battery explosion-proof cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206282915U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107421682A (en) * | 2017-09-12 | 2017-12-01 | 东莞市振华新能源科技有限公司 | A kind of Stress control punctures inside lithium ion cell short-circuiting means automatically |
| CN115207562A (en) * | 2022-08-29 | 2022-10-18 | 上海恩捷新材料科技有限公司 | Diaphragm stretching and fixing device, fixing system, stretching device, diaphragm and diaphragm preparation method |
-
2016
- 2016-11-25 CN CN201621274965.0U patent/CN206282915U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107421682A (en) * | 2017-09-12 | 2017-12-01 | 东莞市振华新能源科技有限公司 | A kind of Stress control punctures inside lithium ion cell short-circuiting means automatically |
| CN115207562A (en) * | 2022-08-29 | 2022-10-18 | 上海恩捷新材料科技有限公司 | Diaphragm stretching and fixing device, fixing system, stretching device, diaphragm and diaphragm preparation method |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170627 Termination date: 20201125 |