CN102376926A - Resettable anti-explosion safety device of lithium-series secondary battery - Google Patents
Resettable anti-explosion safety device of lithium-series secondary battery Download PDFInfo
- Publication number
- CN102376926A CN102376926A CN2011103628733A CN201110362873A CN102376926A CN 102376926 A CN102376926 A CN 102376926A CN 2011103628733 A CN2011103628733 A CN 2011103628733A CN 201110362873 A CN201110362873 A CN 201110362873A CN 102376926 A CN102376926 A CN 102376926A
- Authority
- CN
- China
- Prior art keywords
- stick harness
- main body
- cap
- cavity
- sealing ring
- 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
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
- Secondary Cells (AREA)
Abstract
The invention relates to a resettable anti-explosion safety device of a lithium-series secondary battery; the resettable anti-explosion safety device comprises a main body, a stick harness, an adjusting cap, a sealing ring and a spring, wherein the sealing ring is arranged in a circular groove of a stick harness body; the stick harness is arranged in a cavity of the interior of the main body; a conical body at the bottom end of the stick harness, the sealing ring in the circular groove and a conical cavity under the main body are connected in a sealing manner; the adjusting cap is arranged above the main body and is tightly combined with a matched thread on the upper end of the main body by a thread of an inner ring; the spring is arranged between a projecting part of the upper end of the stick harness and a projecting cone on the top of the interior of the adjusting cap; and the resettable anti-explosion safety device can increase the safety of the lithium-series battery and effectively prevents the lithium-series battery from exploding.
Description
Technical field
The present invention relates to the lithium battery field, refer more particularly to the resetted anti-explosion safety device of lithium based secondary battery.
Background technology
In recent years, the going deep into of the anxiety of the energy and environmental protection ideas, new-energy automobile more and more receives people's favor and looks forward to.Conventional battery has only lead-acid battery to use on automobile, to serve as power source, but the lead-acid battery built-in problem is too many, can't move towards more wide commercial market.And lithium ion battery is the optimal selection of the power source that uses above the following automobile with its excellent performance.Lithium ion battery development trend from now on just develops to high power capacity, power type direction.Along with continuing to bring out of new material, the updating of equipment, technology constantly perfect, lithium ion battery can be widely applied the vehicles or energy-storage system field eventually.
The present global battery same trade all is more suitable for pure electric vehicle in the effort research and development and uses high-capacity lithium ion cell.The monomer high-capacity battery can make the whole battery group structure simpler; But the safety issue of bringing simultaneously put battery industry in face of, when battery overload, even external short circuit; When perhaps ambient temperature exceeds the battery bearing temperature; Electrolyte can gasify, and both positive and negative polarity heat release burning causes the box hat battery explosion.Though many manufacturers all recognize this hidden danger, suffering from does not have good way, can only on the Electronic Protection circuit, make an issue of, yet this can only reduce the dangerous probability of high power capacity cell, has no idea to tackle the problem at its root.The producer that has has adopted the measure of explosion-proof line on battery steel shell, still, this scheme is when inner pressure of battery is excessive, even explosion-proof line meeting explosion, entire cell also will be scrapped, even the situation of explosion-proof line disabler can occur.
Summary of the invention
The present invention seeks in order to promote the fail safe of lithium series battery, so that solve the blast that pure electric vehicle causes battery to take place to influence that battery produced when meeting non-artificial deliberate accident.
For realizing that the foregoing invention purpose can realize that a kind of resetted anti-explosion safety device of lithium based secondary battery is made up of main body, stick harness, adjusting cap, sealing ring, spring by following scheme.
Described body interior hollow, both ends open up and down, body interior cavity divide two parts up and down; The top cavity is a circular cylindrical cavity; Can stablize stick harness and let stick harness slide up and down smoothly, the lower part cavity is taper, and this conical cavity cooperates stick harness to play sealing function; The outside middle-end of main body has a hexagon step, the specification screw thread of having nothing in common with each other up and down of step.
Described stick harness bottom is outstanding, and tapered body puts in during normal condition among the bottom aperture of main body; After safety device is opened, when resetting, plays stick harness the booster action of guiding playback, and there is ledge the stick harness upper end; As fixing spring, one or an above longitudinal fluting are arranged on the stick harness cylinder, effect is to discharge gas; Do not influence simultaneously sliding up and down of stick harness again, there is an annular groove outstanding bullet top, stick harness bottom, is used for fixing sealing ring.
One outstanding centrum is arranged on the inner top of described adjusting cap, act on the top of fixing spring, regulate on the cap and have bleeder port, the inner ring of regulating cap has the screw thread that cooperates main body upper end unanimity, effect regulating spring pressure.Bleeder port can be opened in front or the side of regulating cap, and wherein preferred version is to drive in the side, because prevent the effect that dust gets in addition.
Described sealing ring is arranged in the stick harness body annular groove; Described stick harness is arranged in the body interior inner chamber; The conical cavity of the sealing ring on stick harness bottom bullet and the annular groove and main body below is and is tightly connected; Described adjusting cap is combined closely through the screw thread that matches in the screw thread and the main body upper end of inner ring above main body, and described spring is arranged on stick harness upper end ledge and regulates the inner top of cap and go up between the outstanding cone.
This resettability safety device has been installed on the battery.When controllable pressure that the interior pressure of battery is set greater than battery, safety device is opened, and momentary reset is airtight after the pressure release.Guaranteed that battery keeps air-tight state in the pressure release continued, battery still can normally use.
The design of this anti-explosion safety device, at first emphasis has considered how to accomplish that after opening safety device moment is airtight, can not make the outside air into battery that flows backwards, because as long as the air into battery that flows backwards is arranged, this battery will damage so.So our exclusive design has limited the outside air refluence and has got into battery, can when inner pressure of battery raises, open fast smoothly again.
Beneficial effect of the present invention promotes the fail safe of lithium series battery, effectively prevents the blast of lithium battery.
Description of drawings
Structural representation after Fig. 1, the present invention's combination.
The cut-away view of Fig. 2, main body.
The vertical view of Fig. 3, main body.
The cut-away view of Fig. 4, stick harness.
Fig. 5, stick harness face upward diagrammatic sketch.
The cut-away view of Fig. 6, adjusting cap.
Embodiment
Embodiment describes in further detail below in conjunction with accompanying drawing:
A kind of resetted anti-explosion safety device of lithium based secondary battery is formed described main body 1 inner hollow by main body 1, stick harness 2, adjusting cap 3, sealing ring 4, spring 5; Both ends open up and down, body interior cavity divide two parts up and down, and the top cavity is a circular cylindrical cavity; The lower part cavity is taper, and the outside middle-end of main body has a hexagon step 6, the specification screw thread of having nothing in common with each other up and down of step 6; Described stick harness 2 bottoms are outstanding, tapered body 7, and there is ledge 8 the stick harness upper end; Four longitudinal flutings 9 are arranged on the stick harness cylinder, and there is an annular groove 10 outstanding bullet 7 tops, stick harness 2 bottoms, and described adjusting cap has an outstanding centrum 11 on the 3 inner tops; Regulate on the cap 3 and have bleeder port 12, the inner ring of regulating cap 3 has and cooperates the consistent screw thread in main body upper end, is used for regulating spring pressure; Described sealing ring 4 is arranged in the stick harness body annular groove 10; Described stick harness 2 is arranged in the main body 1 inner inner chamber, and the sealing ring 4 on stick harness 2 bottom bullets 7 and the annular groove 10 and the conical cavity of main body 1 below are and are tightly connected, and described adjusting cap 3 is above main body 1; Screw thread through matching in the screw thread and the main body upper end of inner ring is combined closely, and described spring is arranged on stick harness upper end ledge 8 and regulates the inner top of cap and go up between the outstanding cone 11.
Claims (1)
1. the resetted anti-explosion safety device of a lithium based secondary battery is made up of main body, stick harness, adjusting cap, sealing ring, spring, described body interior hollow; Both ends open up and down, body interior cavity divide two parts up and down, and the top cavity is a circular cylindrical cavity; The lower part cavity is taper, and the outside middle-end of main body has a hexagon step, the specification screw thread of having nothing in common with each other up and down of step; Described stick harness bottom is outstanding, tapered body, and there is ledge the stick harness upper end; One or an above longitudinal fluting are arranged on the stick harness cylinder, and there is an annular groove outstanding bullet top, stick harness bottom, and an outstanding centrum is arranged on the inner top of described adjusting cap; Regulate on the cap and have bleeder port, the inner ring of regulating cap has and cooperates the consistent screw thread in main body upper end, is used for regulating spring pressure; Described sealing ring is arranged in the stick harness body annular groove; Described stick harness is arranged in the body interior cavity, and the conical cavity of the sealing ring on stick harness bottom bullet and the annular groove and main body below is and is tightly connected, and described adjusting cap is above main body; Screw thread through matching in the screw thread and the main body upper end of inner ring is combined closely, and described spring is arranged on stick harness upper end ledge and regulates the inner top of cap and go up between the outstanding cone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103628733A CN102376926A (en) | 2011-11-16 | 2011-11-16 | Resettable anti-explosion safety device of lithium-series secondary battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103628733A CN102376926A (en) | 2011-11-16 | 2011-11-16 | Resettable anti-explosion safety device of lithium-series secondary battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102376926A true CN102376926A (en) | 2012-03-14 |
Family
ID=45795176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103628733A Pending CN102376926A (en) | 2011-11-16 | 2011-11-16 | Resettable anti-explosion safety device of lithium-series secondary battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102376926A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104520952A (en) * | 2012-08-09 | 2015-04-15 | Nok株式会社 | Explosion-proof valve and manufacturing method therefor |
| CN108573810A (en) * | 2018-05-22 | 2018-09-25 | 安徽普和电子有限公司 | A kind of interior explosion-proof capacitor device |
| CN108598333A (en) * | 2018-04-12 | 2018-09-28 | 珠海中能科技有限公司 | Explosion-proof valve and battery system |
| CN108695059A (en) * | 2018-05-22 | 2018-10-23 | 安徽普和电子有限公司 | A kind of capacitor with explosion prevention function |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200983378Y (en) * | 2006-12-15 | 2007-11-28 | 比亚迪股份有限公司 | A secure valve |
| CN101399324A (en) * | 2008-09-25 | 2009-04-01 | 深圳市慧通天下科技股份有限公司 | Pressure adjustable safety valve for lithium ionic cell |
| CN201266631Y (en) * | 2008-10-17 | 2009-07-01 | 包雄伟 | Explosion-proof protection device of charging battery |
| CN201340866Y (en) * | 2008-12-15 | 2009-11-04 | 黄德欢 | Lithium ion battery anti-exploding valve |
-
2011
- 2011-11-16 CN CN2011103628733A patent/CN102376926A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200983378Y (en) * | 2006-12-15 | 2007-11-28 | 比亚迪股份有限公司 | A secure valve |
| CN101399324A (en) * | 2008-09-25 | 2009-04-01 | 深圳市慧通天下科技股份有限公司 | Pressure adjustable safety valve for lithium ionic cell |
| CN201266631Y (en) * | 2008-10-17 | 2009-07-01 | 包雄伟 | Explosion-proof protection device of charging battery |
| CN201340866Y (en) * | 2008-12-15 | 2009-11-04 | 黄德欢 | Lithium ion battery anti-exploding valve |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104520952A (en) * | 2012-08-09 | 2015-04-15 | Nok株式会社 | Explosion-proof valve and manufacturing method therefor |
| CN104520952B (en) * | 2012-08-09 | 2017-08-08 | Nok株式会社 | Explosion-proof valve and its manufacture method |
| CN108598333A (en) * | 2018-04-12 | 2018-09-28 | 珠海中能科技有限公司 | Explosion-proof valve and battery system |
| CN108573810A (en) * | 2018-05-22 | 2018-09-25 | 安徽普和电子有限公司 | A kind of interior explosion-proof capacitor device |
| CN108695059A (en) * | 2018-05-22 | 2018-10-23 | 安徽普和电子有限公司 | A kind of capacitor with explosion prevention function |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102324479B (en) | Anti-explosion valve for power lithium ion battery | |
| CN102376926A (en) | Resettable anti-explosion safety device of lithium-series secondary battery | |
| US12009486B2 (en) | Safe and high-energy USB rechargeable battery | |
| CN203518844U (en) | Multifunctional shield | |
| CN202333010U (en) | Resetting anti-explosion safety device for lithium secondary battery | |
| JP3188012U (en) | Lithium-ion battery safety device | |
| CN216563247U (en) | Battery and electronic device | |
| CN102569898A (en) | Lithium-series secondary battery sealing and forming device and process | |
| CN101783421A (en) | Additive of lithium ion battery liquid electrolyte and obtained electrolyte | |
| CN116114110A8 (en) | End cover assembly, battery monomer, battery and electric equipment | |
| CN105489794A (en) | Anti-explosion battery | |
| CN107508009B (en) | Method for eliminating flatulence of soft package lithium ion battery | |
| CN201812870U (en) | Ball-type safety valve with power lithium batteries | |
| CN203704025U (en) | Rechargeable lighter | |
| CN206332091U (en) | Secondary battery anti-explosion valve | |
| CN204991882U (en) | Explosion -proof early warning lithium cell | |
| CN107732094A (en) | Over-charging of battery safety guard and lithium ion battery | |
| CN204696164U (en) | A kind of battery plastics shell mechanism | |
| CN209487555U (en) | Shell, battery modules and single battery | |
| CN106410079A (en) | Cylindrical lithium-ion power battery aluminum shell with high safety and high performance | |
| CN102290547B (en) | Battery anode cap and preparation method thereof and secondary battery using battery anode cap | |
| CN106784517B (en) | A kind of explosion protection for batteries | |
| CN205882093U (en) | Lithium battery for electric vehicle | |
| CN204668369U (en) | A kind of hermetically-sealed construction for alkaline battery | |
| CN104979590A (en) | Explosion-proof early-warning lithium battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120314 |