CN102263219A - Elastic control piercing explosion protection device - Google Patents
Elastic control piercing explosion protection device Download PDFInfo
- Publication number
- CN102263219A CN102263219A CN201110166555A CN201110166555A CN102263219A CN 102263219 A CN102263219 A CN 102263219A CN 201110166555 A CN201110166555 A CN 201110166555A CN 201110166555 A CN201110166555 A CN 201110166555A CN 102263219 A CN102263219 A CN 102263219A
- Authority
- CN
- China
- Prior art keywords
- explosion
- explosion protection
- battery cover
- cover board
- guide rod
- 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.)
- Granted
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
- Gas Exhaust Devices For Batteries (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention relates to an elastic control piercing explosion protection device, which comprises a battery cover plate and an explosion protection thin film. An explosion protection cavity is formed between the battery cover plate and the explosion protection thin film. A guide rod pushing plate, a lever type bayonet and an elastic piece are arranged in the explosion protection cavity. A guide tube and venting through holes are arranged on the explosion protection cavity. The guide tube is in fit with the guide rod pushing plate. The elastic piece is positioned on the upper part of the explosion protection cavity, and is provided with a plurality of elastic claws in contact with the guide rod pushing plate. The lever type bayonet is hinged to the elastic piece. The sharp end of the lever type bayonet is in contact with the explosion protection thin film, and the other end of the lever type bayonet corresponds to the guide rod pushing plate. The elastic control piercing explosion protection device provided by the invention can make a power battery really realize explosion protection and make explosion protection capability controllable and measurable, and has the advantages of explosion protection safety and reliability, convenience of machining, assembly and use, simple structure and the like.
Description
Technical field
The present invention relates to a kind of explosion-proof device of power battery, relate in particular to a kind of elasticity control penetration type explosion-protection equipment.
Background technology
Market generally adopts the part to roll slim automobile power cell burst disk now, usually its burst disk and battery cover are become one, when using, run into unusual, cell internal pressure expands, when internal pressure reaches set point, the part is rolled thin place and will be taken the lead in breaking (be also referred to as to take off and cover explosion), by pressure release and then stoped pressure rises, thereby plays the battery pack explosion-proof.Roll slim explosion-proof design with existing part, use the burst disk of stainless steel material, thin place thickness is rolled in the part often to be needed to be controlled in the 0.01mm, when nominal value at 0.01mm with interior the time, it is micron-sized that fluctuating range often requires, before erosional surface, look very fragile, do not guarantee user's safety; Present burst disk explosion bulge test, usually adopt the mode of taking a sample test, the qualification rate of burst disk all cannot reach 100%, this typical destructive testing, non-destruction is not known quality, when in a single day thickness be required to micron-sized precision, any technology is all had a greatly reduced quality, anything unexpected all may produce fatal consequence, can not allow the relieved satisfaction of client.Therefore, how to address the above problem, become problem demanding prompt solution.
Summary of the invention
Main purpose of the present invention provides a kind of elasticity control penetration type explosion-protection equipment, makes the electrokinetic cell really can be explosion-proof, and explosion-proof ability is controllable and measurable, has that anti-explosion safety is reliable, process and assemble convenient, an advantage simple in structure, easy to use.
For solving the problems of the technologies described above, a kind of elasticity control penetration type explosion-protection equipment of the present invention, comprise battery cover board, explosion-proof film, form explosion-proof chamber between its battery cover board and the explosion-proof film, in explosion-proof chamber, be provided with the guide rod push pedal, lever bayonet and flexure strip, explosion-proof chamber is provided with and is respectively equipped with guide pipe and disappointing through hole, guide pipe matches with the guide rod push pedal, flexure strip is positioned at explosion-proof chamber top, be provided with some and the contacted elastic claw of guide rod push pedal, the lever bayonet is hinged on the flexure strip, and the tip of lever bayonet contacts with explosion-proof film, the other end is corresponding with the guide rod push pedal.
Above-mentioned guide pipe and disappointing through hole are arranged on the battery cover board.
Above-mentioned battery cover board is provided with top cover, and top cover is pressed on the battery cover board by the riveting point, and guide pipe and disappointing through hole are arranged on the top cover.
Above-mentioned battery cover board is provided with annular groove, is provided with the explosion-proof film of sealing ring riveting in the annular groove.
Be provided with sealing ring between above-mentioned top cover and the battery cover board.
Above-mentioned flexure strip riveting is on top cover.
Above-mentioned top cover can be by the riveting point riveting in the battery cover board outside.
Above-mentioned top cover can be by the riveting point riveting in the battery cover board inboard.
After the present invention adopted said structure, explosion-proof film separated inside battery and explosion-proof chamber by sealing ring fully, and explosion-proof film is by guide rod push pedal location.Breaking through the elastic force of elastic claw when cell internal pressure after, pressing wherein makes the guide rod push pedal will be subjected to a thrust that makes progress, in explosion-proof chamber, produce the elastic force that hinders thrust simultaneously with the contacted elastic claw free end of guide rod push pedal, when inner pressure of battery reaches set point, thrust is greater than elastic force, the guide rod push pedal is moved upward, corresponding with it lever bayonet tail end is subjected to the effect (pressure differential of elastic force and inner pressure of battery) of power simultaneously, the lever bayonet makes the pressure that is subjected to of lever bayonet tail end amplify several times around tool rest motion (lever principle) and acts on lever bayonet tip, guarantee that the lever bayonet can pierce through rupture pressure disc, reaches the technique effect of gradual pressure release.Rupture pressure disc adopts the resistant material of PTFE or PFA and so on to make.
The active force formula that pressure differential of the present invention pierces through explosion-proof film by the amplification of lever bayonet is: n* (Fq-Ft-Fz) 〉=Fc, wherein: Fq is a cell internal pressure, Ft is the total pressure of elastic claw, and Fc is for piercing through the needed power of explosion-proof film, and Fz is the guide rod resistance.From above formula as seen, always can design corresponding Ft by the present invention according to the requirement (directly reaction is Fq) of certain burst pressure, and parameter just is Fz (the elasticity influence of cooperation) and Fc (because the variation of material thickness and material, and not exclusively being equal to of bayonet shape), have only when formula left side value during much larger than the right value, we just can ignore the variation of Fz and Fc.The way of reality is: even if utilize the tolerance value of burst pressure, also want easily to satisfy above formula, we just can be controlled at burst pressure within the tolerance well like this.Here it is introduces lever-type meaning to bayonet.Realization makes the electrokinetic cell really can the controllable and measurable technique effect of explosion-proof and explosion-proof ability, has that anti-explosion safety is reliable, process and assemble convenient, an advantage simple in structure, easy to use.
The present invention has following beneficial effect by compared with prior art: 1. this device allows all enough abundant of the explosion-proof key position of electrokinetic cell, no longer is responsive and fragile, has promoted its resistance ability, has better guaranteed user's safety; 2. the disappointing mode used of this device is that gradual disappointing and non-traditional taking off covered explosion, the noise when having reduced explosion bulge test; 3. each part can both guarantee in the explosion bulge test 100% qualification rate, has fundamentally solved the difficult problem of " non-destruction can not be known quality ", allows the relieved satisfaction of user; 4. lever bayonet of this device usefulness is a moment amplifier, when operational forces several times even number decuple the power that needs, can not exert an influence to its performance.
Description of drawings
The present invention is described in further detail below in conjunction with the embodiment in the accompanying drawing, but do not constitute any limitation of the invention.
Fig. 1 is the cutaway view of the elastic force control penetration type explosion-protection equipment of specific embodiments of the present invention one;
Fig. 2 is the cutaway view of the elastic force control penetration type explosion-protection equipment of specific embodiments of the present invention two;
Fig. 3 is the integrally-built cutaway view of elastic force control penetration type explosion-protection equipment of specific embodiments of the present invention one;
Fig. 4 is the integrally-built vertical view of elastic force control penetration type explosion-protection equipment of specific embodiments of the present invention one;
Fig. 5 is the integrally-built cutaway view of elastic force control penetration type explosion-protection equipment of specific embodiments of the present invention two;
Fig. 6 is the integrally-built vertical view of elastic force control penetration type explosion-protection equipment of specific embodiments of the present invention two.
Among the figure, battery cover board 1, riveting point 11, annular groove 12, rupture pressure disc 2, explosion-proof chamber 3, guide pipe 31, the through hole 32,33 that loses heart, guide rod push pedal 4, lever bayonet 5, shell fragment 6, tool rest 61, elastic claw 62, top cover 7, sealing ring 8.
Embodiment
As Fig. 1, Fig. 3 and shown in Figure 4, specific embodiments of the present invention one:
A kind of elasticity control penetration type explosion-protection equipment, comprise battery cover board 1, explosion-proof film 2, form explosion-proof chamber 3 between battery cover board 1 and the explosion-proof film 2, in explosion-proof chamber 3, be provided with guide rod push pedal 4, lever bayonet 5 and flexure strip 6, explosion-proof chamber 3 is provided with and is respectively equipped with guide pipe 31 and disappointing through hole 32,33, guide pipe 31 matches with guide rod push pedal 4, flexure strip 6 is provided with tool rest 61 and elastic claw 62, lever bayonet 5 is hinged on the tool rest 61, the tip of lever bayonet 5 contacts with explosion-proof film 2, the other end is corresponding with guide rod push pedal 4, elastic claw 62 free end ends contact with the guide rod push pedal respectively, guide pipe 31 and disappointing through hole 32,33 are arranged on the battery cover board 1, and battery cover board 1 is provided with annular groove 12, be provided with the explosion-proof film 2 of sealing ring 8 rivetings in the annular groove 12, flexure strip 6 rivetings are on top cover 7.
As Fig. 2, Fig. 5, shown in Figure 6, specific embodiments of the present invention two:
On the blast resistance construction of specific embodiments one, further improve, on battery cover board 1, establish top cover 7, top cover 7 is pressed on the battery cover board 1 by riveting point 11, form explosion-proof chamber 3 between top cover 7 and the explosion-proof film 2, in explosion-proof chamber 3, be provided with guide rod push pedal 4 and lever bayonet 5, lever bayonet 5 is hinged on the top cover 7, the tip of lever bayonet 5 contacts with explosion-proof film 2, the other end is corresponding with guide rod push pedal 4, be provided with four paws shell fragment 6 between top cover 7 and the guide rod push pedal 4, top cover 7 is provided with the guide pipe 31 that matches with guide rod push pedal 4, on top cover 7, be respectively equipped with the through hole 32 and 33 that loses heart, be provided with sealing ring 8 between top cover 7 and the battery cover board 1, flexure strip 6 rivetings are on top cover 7, and top cover 7 can be by riveting point 11 rivetings in battery cover board 1 outside.
Specific embodiments one (shell fragment and piercing device are to convex, pierce through the side) elastic force control penetration type explosion-protection equipment depends on battery structure arrangement space with the selection that (shell fragment and piercing device pierce through to evagination) elastic force of specific embodiments two is controlled the penetration type explosion-protection equipment downwards.Top cover 7 can be by riveting point 11 rivetings in battery cover board 1.
This elasticity control penetration type explosion-protection equipment, when inner pressure of battery reaches set point by force and gets, pressure is just broken through elastic claw 6 free-ended suppressing, the pressure differential of the two is then hinged power amplification several times by lever bayonet 5, divide concentrate on the bayonet tip at 2, what meet the standard of zero tolerance pierces through explosion-proof film 2.
In sum, the present invention is as specification and diagramatic content, makes actual sample and through repeatedly use test, from the effect of use test, provable the present invention can reach the purpose that it is expected, practical value is unquestionable.Above illustrated embodiment only is used for conveniently illustrating the present invention, be not that the present invention is done any pro forma restriction, have in the technical field under any and know the knowledgeable usually, if in the scope that does not break away from technical characterictic that the present invention carries, utilize disclosed technology contents to do the local equivalent embodiment that changes or modify, and do not break away from technical characterictic content of the present invention, all still belong in the scope of the technology of the present invention feature.
Claims (8)
1. an elasticity is controlled the penetration type explosion-protection equipment, comprise battery cover board (1) and explosion-proof film (2), it is characterized in that: form explosion-proof chamber (3) between battery cover board (1) and the explosion-proof film (2), in explosion-proof chamber (3), be provided with guide rod push pedal (4), lever bayonet (5) and flexure strip (6), explosion-proof chamber (3) is provided with and is respectively equipped with guide pipe (31) and disappointing through hole (32,33), guide pipe (31) matches with guide rod push pedal (4), flexure strip (6) is positioned at explosion-proof chamber (3) top, be provided with some and the contacted elastic claw of guide rod push pedal (62), lever bayonet (5) is hinged on the flexure strip (6), and the tip of lever bayonet (5) contacts with explosion-proof film (2), the other end is corresponding with guide rod push pedal (4).
2. a kind of elasticity control penetration type explosion-protection equipment according to claim 1, it is characterized in that: guide pipe (31) and disappointing through hole (32,33) are arranged on the battery cover board (1).
3. a kind of elasticity control penetration type explosion-protection equipment according to claim 1, it is characterized in that: described battery cover board (1) is provided with top cover (7), top cover (7) is pressed on the battery cover board (1) by riveting point (11), and guide pipe (31) and disappointing through hole (32,33) are arranged on the top cover (7).
4. a kind of elasticity control penetration type explosion-protection equipment according to claim 1 is characterized in that: comprise that battery cover board (1) is provided with annular groove (12), is provided with the explosion-proof film of sealing ring (8) riveting (2) in the annular groove (12).
5. a kind of elasticity control penetration type explosion-protection equipment according to claim 3 is characterized in that: be provided with sealing ring (8) between described top cover (7) and the battery cover board (1).
6. according to claim 1 or 3 described a kind of elasticity control penetration type explosion-protection equipments, it is characterized in that: flexure strip (6) riveting is on top cover (7).
7. a kind of elasticity control penetration type explosion-protection equipment according to claim 3, it is characterized in that: described top cover (7) passes through riveting point (11) riveting in battery cover board (1) outside.
8. a kind of elasticity control penetration type explosion-protection equipment according to claim 3, it is characterized in that: described top cover (7) passes through riveting point (11) riveting in battery cover board (1) inboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110166555.XA CN102263219B (en) | 2011-06-17 | 2011-06-17 | Elastic control piercing explosion protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110166555.XA CN102263219B (en) | 2011-06-17 | 2011-06-17 | Elastic control piercing explosion protection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102263219A true CN102263219A (en) | 2011-11-30 |
| CN102263219B CN102263219B (en) | 2014-01-29 |
Family
ID=45009765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110166555.XA Expired - Fee Related CN102263219B (en) | 2011-06-17 | 2011-06-17 | Elastic control piercing explosion protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102263219B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1688041A (en) * | 2005-04-27 | 2005-10-26 | 汤国江 | Safety valve for lithium ion cell |
| JP3142788U (en) * | 2008-04-15 | 2008-06-26 | 古河電池株式会社 | Battery safety valve device |
| CN201156559Y (en) * | 2008-02-22 | 2008-11-26 | 苏州星恒电源有限公司 | Safety valve of lithium ionic cell |
-
2011
- 2011-06-17 CN CN201110166555.XA patent/CN102263219B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1688041A (en) * | 2005-04-27 | 2005-10-26 | 汤国江 | Safety valve for lithium ion cell |
| CN201156559Y (en) * | 2008-02-22 | 2008-11-26 | 苏州星恒电源有限公司 | Safety valve of lithium ionic cell |
| JP3142788U (en) * | 2008-04-15 | 2008-06-26 | 古河電池株式会社 | Battery safety valve device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102263219B (en) | 2014-01-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2012074217A3 (en) | Method for deaerating secondary battery using centrifugal force | |
| EP2425475B1 (en) | Battery with battery safety vent | |
| JP6456441B2 (en) | Liquid storage and discharge device, and chip for liquid storage and discharge | |
| US9789556B2 (en) | Brazing without tools | |
| US2922833A (en) | Pressure responsive safety device | |
| CN103616119B (en) | The fire extinguisher of pressure monitoring device and this pressure monitoring device of employing | |
| CN102263219B (en) | Elastic control piercing explosion protection device | |
| CN102324588A (en) | Equipment for detecting pressure inside cylindrical lithium ion battery | |
| KR101627722B1 (en) | Testing apparatus for fuel cell separator | |
| KR20210125283A (en) | Apparatus for analyzing real gas in secondary battery | |
| CN201876340U (en) | Air-tightness testing tool for power battery cover | |
| JP2010050038A (en) | Grommet | |
| CN201129519Y (en) | Manual self-pressure type bottle head valve | |
| KR101979594B1 (en) | Apparatus to collect inner gas for small circular lithium-ion battery | |
| JP2009048866A (en) | Closed storage battery | |
| CN215418488U (en) | Piston type lithium battery explosion-proof valve structure | |
| CN210971551U (en) | Rupture disk piercing device based on energy storage of spring | |
| CN103050735A (en) | Anode lug bending and sealing body press-in device for cylindrical lithium battery | |
| CN214579108U (en) | Full-section valve membrane piercing knife assembly of electric explosion valve | |
| CN108266557B (en) | Electromagnetic valve | |
| JP6156109B2 (en) | Temporary sealing plug for power storage device | |
| JP3142788U (en) | Battery safety valve device | |
| CN115531770B (en) | Power battery fire extinguishing mechanism | |
| CN110576976A (en) | Rupture disk piercing device based on spring energy storage and oxygen supply method | |
| CN214672775U (en) | Battery explosion-proof structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: DONGGUAN PULAIDE PRECISION MACHINING CO., LTD. Free format text: FORMER OWNER: DONGGUAN WANLI ELECTRONIC TECHNOLOGY CO., LTD. Effective date: 20140623 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 523000 DONGGUAN, GUANGDONG PROVINCE TO: 523440 DONGGUAN, GUANGDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140623 Address after: Village Dongkeng Town 523440 Guangdong city of Dongguan province. Patentee after: Dongguan City Platt precision machining Co. Address before: Guangdong province Dongguan City Dongkeng Town 523000 Village Road on the seven corner of the two team 20-23. Patentee before: Dongguan Wanli Electronic Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140129 Termination date: 20140617 |
|
| EXPY | Termination of patent right or utility model |