CN201681989U - Power lithium battery safety valve - Google Patents
Power lithium battery safety valve Download PDFInfo
- Publication number
- CN201681989U CN201681989U CN2010202990836U CN201020299083U CN201681989U CN 201681989 U CN201681989 U CN 201681989U CN 2010202990836 U CN2010202990836 U CN 2010202990836U CN 201020299083 U CN201020299083 U CN 201020299083U CN 201681989 U CN201681989 U CN 201681989U
- Authority
- CN
- China
- Prior art keywords
- pressure
- spring
- valve body
- cover
- gasket
- 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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- 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
Abstract
Disclosed is a power lithium battery safety valve, which comprises a valve body connected and mounted on a lithium battery cover plate, a gasket disposed in the valve body covers at an air inlet channel for matching, a moving mandril is positioned above the gasket, an initiating cover is covered at the upper end of the valve body with a gap, a spring is sleeved on the moving mandril, and the upper end of the spring contacts the end face of the initiating cover correspondingly. When the pressure in a battery rises gradually, air pressure will butt the gasket upwards and compress the spring to cause gas leakage to depressurize timely, and the spring and the gasket can be reset and sealed automatically after the pressure is reduced. In case of instant pressure surge, the air pressure will cause the gasket to move upwards along with the moving mandril, so as to rapidly press off the initiating cover to disengage the valve body, fast drain the pressure, and avoid battery explosion. The utility model is reasonable in structure and high in safety, the spring can be used to control and adjust the safety limited pressure value easily, and the production and assembly are convenient.
Description
Technical field: the utility model relates to the safety valve that a kind of dynamic lithium battery uses.
Background technology: dynamic lithium battery is in use if abnormal conditions such as battery failures, and internal pressure may raise rapidly, even blast.In order to improve the safety in utilization of dynamic lithium battery, generally safety valve need be installed on battery cover board.But common safety valve adopts the rupture pressure disc structure more, the price height of rupture pressure disc, puncture inefficacy in the production use easily, safe voltage limiting value also is difficult for accurately control, and raise gradually for internal pressure but also do not reach the situation of blast value, rupture pressure disc pressure release in time, can only cumulative stress after the disposable pressure release of explosion use, not only influence safety, also cause the unnecessary inefficacy of battery.
Summary of the invention: at the deficiencies in the prior art, the utility model provides the dynamic lithium battery safety valve of pressure release in time in a kind of the use.
The utility model comprises the valve body that is connected on the lithium battery cover plate, the sealing gasket that is provided with in the valve body covers at the inlet channel place and cooperates, the sealing gasket top is equipped with mobile push rod, the cover that detonates is stamped in the upper end of valve body then gap, spring housing is on mobile push rod, and corresponding contact of inner face of the upper end of spring and the cover that detonates.
When the utility model raise gradually at cell internal pressure, air pressure can make the timely step-down of gas leakage with top on the sealing gasket and compression spring, and pressure reduces the sealing that can automatically reset of rear spring and sealing gasket.The situation if instantaneous pressure raises rapidly, air pressure then can be with sealing gasket together with moving on the mobile push rod, and the cover that will detonate fast backs down the disengaging valve body, and pressure is drained rapidly, avoids battery explosion.Of the present utility model rational in infrastructure, safe, and use spring to control easily and adjust safe voltage limiting value, produce easy to assembly.
Further specify the utility model below in conjunction with drawings and Examples.
Description of drawings: Fig. 1 is the main structure schematic diagram of embodiment.
Fig. 2 is the pressure release schematic diagram of Fig. 1.
Fig. 3 is the schematic diagram that detonates of Fig. 1.
Embodiment: as shown in Figure 1, valve body 1 is mounted on the lithium battery cover plate 8, the sealing gasket 2 that is provided with in the valve body 1 covers at inlet channel 6 places and cooperates, sealing gasket 2 tops are equipped with mobile push rod 3, the cover 4 that detonates is stamped in the upper end of valve body 1 then gap, spring 5 is enclosed within on the mobile push rod 3, and corresponding contact of inner face of the upper end of spring 5 and the cover 4 that detonates.The surface of the cover 4 that detonates of present embodiment is provided with several interior concave points 7 and connects easier being backed down when detonating like this with the corresponding contact of outer surface of valve body 1.
When cell internal pressure raise gradually, as shown in Figure 2, air pressure can will move on sealing gasket 2, the mobile push rod 3, and the upper end of spring 5 cover 4 the inner face that detonated blocks compression, and sealing gasket 2 and inlet channel 6 places break away from sealing, and gas can leak timely step-down.After pressure reduces, spring 5 automatic elastic recoverys, sealing gasket 2 resets and the sealing of inlet channel 6 places, and battery and safety valve can continue to use.
The situation if the inside battery instantaneous pressure raises rapidly, as shown in Figure 3, air pressure then can be with sealing gasket 2 together with moving on the mobile push rod 3, and the upper end of mobile push rod 3 cover 4 that will detonate fast backs down and breaks away from valve body 1, and pressure is drained rapidly, avoids battery explosion.
Claims (2)
1. dynamic lithium battery safety valve, comprise the valve body that is connected on the lithium battery cover plate, it is characterized by: the sealing gasket (2) that is provided with in the valve body (1) covers at inlet channel (6) to be located to cooperate, sealing gasket (2) top is equipped with mobile push rod (3), the cover (4) that detonates is stamped in the upper end of valve body (1) then gap, spring (5) is enclosed within on the mobile push rod (3), and the inner face of the upper end of spring (5) and the cover (4) that detonates correspondence contacts.
2. dynamic lithium battery safety valve according to claim 1 is characterized by: the surface of the cover (4) that detonates is provided with several interior concave points (7) and connects with the corresponding contact of outer surface of valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202990836U CN201681989U (en) | 2010-08-20 | 2010-08-20 | Power lithium battery safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202990836U CN201681989U (en) | 2010-08-20 | 2010-08-20 | Power lithium battery safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201681989U true CN201681989U (en) | 2010-12-22 |
Family
ID=43347024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202990836U Expired - Fee Related CN201681989U (en) | 2010-08-20 | 2010-08-20 | Power lithium battery safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201681989U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106158393A (en) * | 2016-09-08 | 2016-11-23 | 河南天航天科技有限公司 | A kind of ultracapacitor explosion-protection equipment |
| CN106328856A (en) * | 2015-06-17 | 2017-01-11 | 深圳市沃特玛电池有限公司 | High-reliability lithium battery cap |
| CN107644955A (en) * | 2017-09-18 | 2018-01-30 | 江苏万达新能源科技股份有限公司 | One kind automatically powers off protection lithium battery top cap plate and application |
| CN111936744A (en) * | 2018-02-05 | 2020-11-13 | 沃森马洛布雷德尔公司 | Vent assembly for peristaltic pump |
| CN112952303A (en) * | 2018-04-23 | 2021-06-11 | 比亚迪股份有限公司 | Battery cover plate assembly, battery module, power battery and electric automobile |
| EP4002571A1 (en) | 2020-11-11 | 2022-05-25 | Siliko d.o.o. | A safety valve for a battery or an accumulator for electric or hybrid vehicles |
-
2010
- 2010-08-20 CN CN2010202990836U patent/CN201681989U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106328856A (en) * | 2015-06-17 | 2017-01-11 | 深圳市沃特玛电池有限公司 | High-reliability lithium battery cap |
| CN106158393A (en) * | 2016-09-08 | 2016-11-23 | 河南天航天科技有限公司 | A kind of ultracapacitor explosion-protection equipment |
| CN107644955A (en) * | 2017-09-18 | 2018-01-30 | 江苏万达新能源科技股份有限公司 | One kind automatically powers off protection lithium battery top cap plate and application |
| CN111936744A (en) * | 2018-02-05 | 2020-11-13 | 沃森马洛布雷德尔公司 | Vent assembly for peristaltic pump |
| US11448209B2 (en) | 2018-02-05 | 2022-09-20 | Watson-Marlow Bredel B.V. | Breather assembly for a peristaltic pump |
| CN111936744B (en) * | 2018-02-05 | 2023-02-21 | 沃森马洛布雷德尔公司 | Vent assembly for peristaltic pump |
| CN112952303A (en) * | 2018-04-23 | 2021-06-11 | 比亚迪股份有限公司 | Battery cover plate assembly, battery module, power battery and electric automobile |
| CN112968258A (en) * | 2018-04-23 | 2021-06-15 | 比亚迪股份有限公司 | Battery cover plate assembly, battery module, power battery and electric automobile |
| CN112968258B (en) * | 2018-04-23 | 2022-10-18 | 比亚迪股份有限公司 | Battery cover plate assembly, battery module, power battery and electric automobile |
| CN112952303B (en) * | 2018-04-23 | 2023-07-11 | 比亚迪股份有限公司 | Battery cover plate assembly, battery module, power battery and electric automobile |
| EP4002571A1 (en) | 2020-11-11 | 2022-05-25 | Siliko d.o.o. | A safety valve for a battery or an accumulator for electric or hybrid vehicles |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20101222 Termination date: 20170820 |