CN209472035U - A kind of lithium cell safety valve - Google Patents
A kind of lithium cell safety valve Download PDFInfo
- Publication number
- CN209472035U CN209472035U CN201920606404.3U CN201920606404U CN209472035U CN 209472035 U CN209472035 U CN 209472035U CN 201920606404 U CN201920606404 U CN 201920606404U CN 209472035 U CN209472035 U CN 209472035U
- Authority
- CN
- China
- Prior art keywords
- valve body
- exhaust
- spring
- fixedly connected
- pressure relief
- 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
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 34
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 239000002699 waste material Substances 0.000 claims abstract description 15
- 238000007789 sealing Methods 0.000 claims abstract description 9
- 238000009434 installation Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 5
- 239000000126 substance Substances 0.000 description 9
- 239000007789 gas Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 3
- 229910001416 lithium ion Inorganic materials 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- -1 partition Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001681 protective effect Effects 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)
Abstract
The utility model discloses a kind of lithium cell safety valves, including lithium battery ontology, valve body, exhaust pressure relief component and waste collection component, one end of the valve body is fixedly connected with lithium battery bodies top, the waste collection component and exhaust pressure relief component are respectively positioned on valve inner, the body base inner wall is provided with annular groove and pressure relief opening, and the two sides of valve body are symmetrically provided with exhaust outlet, annular movement slot is provided on the outside of the exhaust outlet, the utility model is when lithium battery body interior pressure is excessive, pressure release exhaust is carried out by exhaust pressure relief component, drive hemispherical elastic slice mobile, make Exhaust Open, when pressure release is completed, pass through the effect of spring, close exhaust outlet rapidly, it avoids leakage from contacting with air and secondary hazards occurs, the setting of waste collecting device, leakage is preferably collected into sealing, it prevents from contacting with air.
Description
Technical field
The utility model relates to lithium battery production technical field, specially a kind of lithium cell safety valve.
Background technique
Lithium ion battery be using lithium ion inlaid scheme as the general name of the battery of positive electrode, lithium ion battery mainly by
The composition such as positive and negative anodes collector, positive and negative pole material, partition, electrolyte and safety valve, the meeting in incorrect use of usual lithium battery
There is situations such as short circuit, overcharge, is excessively anti-, current run-away is caused, to make battery temperature increase, when temperature is increased to certain altitude
When, the substance of inside battery such as electrolyte etc. can decompose, and generate gas；With the pressure rise of gas, battery case will appear
Expansion, deformation, when serious, can also make battery case burst, and existing safety valve is since lithium battery interior pressure is excessive, safe
After valve can open exhaust decompression, but safety valve is opened, the chemicals that lithium battery interior leaks out can be with sky under conditions of high temperature
Oxygen chemically reacts in gas, it would still be possible to situation on fire occurs, security performance is not high, for this purpose, it is proposed that a kind of lithium is electric
Pond safety valve.
Utility model content
The purpose of this utility model is to provide a kind of lithium cell safety valves, to solve mentioned above in the background art ask
Topic.
To achieve the above object, the utility model provides the following technical solutions: a kind of lithium cell safety valve, including lithium battery
One end of ontology, valve body, exhaust pressure relief component and waste collection component, the valve body is fixedly connected with lithium battery bodies top,
The waste collection component and exhaust pressure relief component are respectively positioned on valve inner, and the body base inner wall is provided with annular groove and pressure release
Mouthful, and the two sides of valve body are symmetrically provided with exhaust outlet, are provided with annular movement slot on the outside of the exhaust outlet.
Preferably, the exhaust pressure relief component includes that hemispherical elastic slice, support plate, the first spring, second spring, annular are solid
Fixed board, diaphragm seal and connecting shaft, first spring, second spring, ring-type fixing plate, diaphragm seal and connecting shaft are equipped with two
It is a, and two the first springs are symmetrical on the supporting plate, the both ends of first spring respectively with body top inner wall and branch
It is fixedly connected at the top of fagging, one end of the hemispherical elastic slice is fixedly connected with support plate bottom, and hemispherical elastic slice is located at
Pressure relief opening top, the both ends of the support plate are symmetrically installed with sealing block, and sealing block and exhaust outlet connect, and described second
The both ends of spring are fixedly connected with the side of the inner wall of annular movement slot and ring-type fixing plate respectively, and the ring-type fixing plate is located at
In annular movement slot, and the outside of ring-type fixing plate and the inner wall of annular movement slot are slidably connected, the both ends point of the connecting shaft
It is not fixedly connected at the top of the side of diaphragm seal and ring-type fixing plate.
Preferably, the waste collection component includes annular cover plate and connecting rod, and the connecting rod is equipped with multiple and multiple
Connecting rod is angularly distributed on annular cover plate, the both ends of the connecting rod top with the bottom of support plate and annular cover plate respectively
Portion is fixedly connected, and the annular cover plate is located at the top of annular groove, and is connected with annular groove.
Preferably, mounting shell is installed on the outside of the annular cover plate, and mounting shell is fixedly connected with body base.
Preferably, shield is fixedly installed on the outside of the valve body.
Compared with prior art, the utility model has the beneficial effects that
1, the utility model carries out pressure release row by exhaust pressure relief component when lithium battery body interior pressure is excessive
Gas drives hemispherical elastic slice mobile, makes Exhaust Open, when pressure release is completed, by the effect of spring, closes exhaust outlet rapidly
It closes, avoids leakage from contacting with air and secondary hazards occur, the setting of waste collecting device preferably collects leakage
Sealing, prevents from contacting with air.
2, shield is set on the outside of the utility model valve body, when effectively excessive to lithium battery body interior pressure to valve body into
The effect of row protection.
Detailed description of the invention
Broken section schematic front view when Fig. 1 is the utility model overall structure normal condition；
Fig. 2 is that broken section regards schematic diagram when the utility model overall structure breaks down；
Fig. 3 is a-quadrant enlarged drawing in Fig. 1.
In figure: 1- lithium battery ontology；2- valve body；3- exhaust pressure relief component；4- waste collection component；5- annular groove；6- is let out
Press mouth；7- exhaust outlet；8- annular movement slot；9- hemispherical elastic slice；10- support plate；The first spring of 11-；12- second spring；13-
Ring-type fixing plate；14- diaphragm seal；15- sealing block；16- annular cover plate；17- connecting rod；18- mounting shell；19- shield；20-
Connecting shaft.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-3 is please referred to, the utility model provides a kind of technical solution: a kind of lithium cell safety valve, including lithium battery sheet
Body 1, valve body 2, exhaust pressure relief component 3 and waste collection component 4, one end of the valve body 2 connect with fixed at the top of lithium battery ontology 1
It connects, the waste collection component 4 and exhaust pressure relief component 3 are respectively positioned on inside valve body 2, and 2 bottom interior wall of valve body is provided with annular
Slot 5 and pressure relief opening 6, and the two sides of valve body 2 are symmetrically provided with exhaust outlet 7, are provided with annular movement slot 8 on the outside of the exhaust outlet 7, work as lithium
When 1 internal pressure of battery body is excessive, drives hemispherical elastic slice 9 mobile, air pressure inside is discharged from exhaust outlet 7, when interior outer gas
When pressing consistent, by the effect of the first spring 11 and second spring 12, rapidly closes valve body 2, avoid causing because air pressure is excessive
Chemical substance is contacted with air, and secondary hazards, the setting of waste collection component 4, full of valve after preventing chemical substance from revealing occurs
Body 2 causes danger.
Exhaust pressure relief component 3 is fixed including hemispherical elastic slice 9, support plate 10, the first spring 11, second spring 12, annular
Plate 13, diaphragm seal 14 and connecting shaft 20, first spring 11, second spring 12, ring-type fixing plate 13, diaphragm seal 14 and connection
There are two axis 20 is all provided with, and two the first springs 11 are symmetrically distributed in support plate 10, the both ends difference of first spring 11
It is fixedly connected with the top of 2 top inner wall of valve body and support plate 10, one end and 10 bottom of support plate of the hemispherical elastic slice 9 are solid
Fixed connection, and hemispherical elastic slice 9 is located at 6 top of pressure relief opening, the both ends of the support plate 10 are symmetrically installed with sealing block 15, and close
It seals block 15 and exhaust outlet 7 connects, the both ends of the second spring 12 are fixed with the inner wall of annular movement slot 8 and annular respectively
The side of plate 13 is fixedly connected, and the ring-type fixing plate 13 is located in annular movement slot 8, and the outside of ring-type fixing plate 13 and ring
The inner wall of shape shifting chute 8 is slidably connected, the both ends of the connecting shaft 20 respectively with the side of diaphragm seal 14 and ring-type fixing plate 13
Top is fixedly connected.
Specific embodiment: when 1 air pressure inside of lithium battery ontology is excessive, entered by pressure relief opening 6, make hemispherical elastic slice 9
It is mobile, it is mobile to drive support plate 10, to keep 7 outer side seal block 15 of exhaust outlet mobile, then flicks diaphragm seal 14, make air pressure from
Exhaust outlet 7 releases, and when inside and outside pressure is consistent, by the elastic reaction of second spring 12, diaphragm seal 14 is made to seal exhaust outlet 7
One end drives support plate 10 so that sealing block 15 be made to seal 7 other end of exhaust outlet, to reach downwards by the effect of the first spring 11
To the rapid purpose for closing exhaust outlet 7, avoid that secondary hazards occur because leaking out chemicals and contacting with air.
Waste collection component 4 includes annular cover plate 16 and connecting rod 17, and the connecting rod 17 is equipped with multiple, and multiple connections
Bar 17 is angularly distributed on annular cover plate 16, the both ends of the connecting rod 17 respectively with the bottom of support plate 10 and annular cover plate
16 top is fixedly connected, and the annular cover plate 16 is located at 5 top of annular groove, and connects with annular groove 5, lithium battery ontology
1 internal pressure is excessive, drives support plate 10 mobile, opens annular cover plate 16, make the chemical substance of 1 internal leakage of lithium battery ontology
It flows into inside annular groove 5, after pressure release, is acted on by the first spring 11 and cover annular cover plate 16 rapidly, avoid air and change
Substance contact is learned to react.
Mounting shell 18 is installed, and mounting shell 18 is fixedly connected with 2 bottom of valve body, prevents lithium battery on the outside of annular cover plate 16
The chemical substance that 1 internal leakage of ontology goes out flows into chemical substance more preferably inside annular groove 5 full of inside valve body 2.
It is fixedly installed with shield 19 on the outside of valve body 2, protective effect is carried out to valve body 2.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of lithium cell safety valve, including lithium battery ontology (1), valve body (2), exhaust pressure relief component (3) and waste collection group
Part (4), it is characterised in that: be fixedly connected at the top of one end of the valve body (2) and lithium battery ontology (1), the waste collection group
Part (4) and exhaust pressure relief component (3) are respectively positioned on valve body (2) inside, and valve body (2) bottom interior wall is provided with annular groove (5) and lets out
It presses mouth (6), and the two sides of valve body (2) are symmetrically provided with exhaust outlet (7), is provided with annular movement slot (8) on the outside of the exhaust outlet (7).
2. a kind of lithium cell safety valve according to claim 1, it is characterised in that: the exhaust pressure relief component (3) includes
Hemispherical elastic slice (9), support plate (10), the first spring (11), second spring (12), ring-type fixing plate (13), diaphragm seal (14)
With connecting shaft (20), first spring (11), second spring (12), ring-type fixing plate (13), diaphragm seal (14) and connecting shaft
(20) there are two being all provided with, and two the first springs (11) are symmetrically distributed on support plate (10), and the two of first spring (11)
End is fixedly connected at the top of valve body (2) top inner wall and support plate (10) respectively, one end of the hemispherical elastic slice (9) and branch
Fagging (10) bottom is fixedly connected, and hemispherical elastic slice (9) is located at pressure relief opening (6) top, the both ends pair of the support plate (10)
Title is equipped with sealing block (15), and sealing block (15) and exhaust outlet (7) connect, the both ends difference of the second spring (12)
It is fixedly connected with the side of the inner wall of annular movement slot (8) and ring-type fixing plate (13), the ring-type fixing plate (13) is located at ring
In shape shifting chute (8), and the outside of ring-type fixing plate (13) and the inner wall of annular movement slot (8) are slidably connected, the connecting shaft
(20) both ends are fixedly connected at the top of the side of diaphragm seal (14) and ring-type fixing plate (13) respectively.
3. a kind of lithium cell safety valve according to claim 1, it is characterised in that: the waste collection component (4) includes
Annular cover plate (16) and connecting rod (17), the connecting rod (17) are equipped with multiple, and multiple connecting rods (17) are angularly distributed in
On annular cover plate (16), the both ends of the connecting rod (17) top with the bottom of support plate (10) and annular cover plate (16) respectively
It is fixedly connected, the annular cover plate (16) is located at the top of annular groove (5), and connects with annular groove (5).
4. a kind of lithium cell safety valve according to claim 3, it is characterised in that: installation on the outside of the annular cover plate (16)
Have mounting shell (18), and mounting shell (18) is fixedly connected with valve body (2) bottom.
5. a kind of lithium cell safety valve according to claim 4, it is characterised in that: be fixedly mounted on the outside of the valve body (2)
There are shield (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920606404.3U CN209472035U (en) | 2019-04-29 | 2019-04-29 | A kind of lithium cell safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920606404.3U CN209472035U (en) | 2019-04-29 | 2019-04-29 | A kind of lithium cell safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209472035U true CN209472035U (en) | 2019-10-08 |
Family
ID=68093922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920606404.3U Expired - Fee Related CN209472035U (en) | 2019-04-29 | 2019-04-29 | A kind of lithium cell safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209472035U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114566751A (en) * | 2021-12-09 | 2022-05-31 | 西安交通大学 | Pressure relief device for safety valve of lithium battery |
-
2019
- 2019-04-29 CN CN201920606404.3U patent/CN209472035U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114566751A (en) * | 2021-12-09 | 2022-05-31 | 西安交通大学 | Pressure relief device for safety valve of lithium battery |
| CN114566751B (en) * | 2021-12-09 | 2023-05-05 | 西安交通大学 | Pressure relief device of lithium battery safety valve |
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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: 20191008 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |