CN2572567Y - Safety valve for sealed lead acid accumulator - Google Patents
Safety valve for sealed lead acid accumulator Download PDFInfo
- Publication number
- CN2572567Y CN2572567Y CN 02243848 CN02243848U CN2572567Y CN 2572567 Y CN2572567 Y CN 2572567Y CN 02243848 CN02243848 CN 02243848 CN 02243848 U CN02243848 U CN 02243848U CN 2572567 Y CN2572567 Y CN 2572567Y
- Authority
- CN
- China
- Prior art keywords
- lead acid
- sealed lead
- safety valve
- valve body
- sealing column
- 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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- Y02E60/12—
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- Gas Exhaust Devices For Batteries (AREA)
Abstract
The utility model discloses a safety valve for a sealed lead acid accumulator, which aims to provide the safety valve for the sealed lead acid accumulator, which can adjust the inside pressure of the accumulator, keeps the pressure constant and has the advantages of long service life, high accumulator safety factor and wide range of the applicable accumulator models. The utility model comprises a valve body with steps, a sealing ring, liquid blocking sheets and the external screw thread. The valve body is provided with a sealing column with the steps, a small shaft of which is matched in gaps with a small hole of the valve body. The upper end of the sealing column is provided with a blind hole, and a spring is arranged in the blind hole. The blind hole of the sealing column is provided with a compression bar composed of a big shaft and the small shaft. The end face of the big shaft of the compression bar is provided with a vent hole, and the utility model is suitable for different models of sealed lead acid accumulators.
Description
Technical field
The utility model relates to a kind of safety valve, particularly a kind of sealed lead acid storage battery safety valve.
Background technology
Sealed lead acid storage battery needs the interior pressure that keeps certain under normal operation, to improve the reaction efficiency of battery, prevents that outside air from entering battery.But under abnormal conditions such as battery overcharge or high-voltage charging, inner pressure of battery raises, and produces excess of oxygen even also has hydrogen.Can cause housing distortion or battery explosion.Too high in order to prevent cell internal pressure, present domestic battery production producer generally adopts rubber cap, this rubber cap is opened venting when cell internal pressure is higher, but the opening pressure value excursion of rubber cap is big, be difficult to guarantee reappearance, and under the environmental condition of high temperature and acid mist, rubber cap and battery container adhesion situation take place very easily, cause the interior gas of battery normally not get rid of, the safety of battery can not get guaranteeing.
China's utility model patent Granted publication number: CN2258660Y discloses a kind of novel seal maintenance-free lead accumulator safety valve, and this safety valve is built-in with a rubber column at valve body.When cell internal pressure is excessive, the rubber column distortion, air scavenge, the opening pressure value excursion of this safety valve is little than rubber cap, and reappearance also is higher than rubber cap, but can not regulating cell internal pressure scope, and, the long-term use, there is aging phenomenon equally in rubber column, can not guarantee constant pressure.
Summary of the invention
The purpose of this utility model is to avoid deficiency of the prior art and the sealed lead acid storage battery safety valve that a kind of scalable cell internal pressure is provided and keep-ups pressure constant.
The purpose of this utility model can reach by following measure: the sealed lead acid storage battery safety valve, comprise the valve body that has step, sealing ring, liquid barrier, external connection screw, be provided with the sealing column of step in the described valve body, little axle of described sealing column and valve body aperture matched in clearance, the sealing column upper end is provided with a blind hole, and a spring is set in the blind hole, the depression bar of being made up of macro-axis and little axle is set on the blind hole of sealing column, and the big axial end of described depression bar is provided with steam vent.
Described valve body, sealing column and depression bar are made by the ABS engineering plastics, on the step of described valve body aperture and macropore boss is arranged, described boss is circular arc, triangle linear structure, described sealing column step is provided with a seal washer, described seal washer is made by acid-resisting rubber, and the depression bar macro-axis that is connected with the valve body macropore is provided with screw thread.
Description of drawings
Fig. 1 is the structural representation of the utility model safety valve.
Embodiment
Sealed lead acid storage battery safety valve shown in Figure 1 comprises the valve body 1 that has step, sealing ring 7, and liquid barrier 6, under the battery normal condition, the seal washer 5 on the sealing column 2 is in sealing state with valve body 1.When cell internal pressure was excessive, gas jack-up sealing column 2 made sealing column 2 and valve body 1 produce the gap, and excess air is discharged by gap and depression bar 3 big axial end upper air-vents 8 in the battery, has guaranteed the safety of battery.Depression bar 3 by screw thread 12 and valve body 1 for scalable is connected, by regulating depression bar 3, the spring 4 pressure sizes in the control sealing column 2 upper end blind holes, the reproducibility of the interior discharge of assurance battery gas flow.Boss 9 on the step of valve body aperture and macropore is circular arc, triangle linear structure, can prevent because of the aging of seal washer 5 or corrosion cause large tracts of land adhesion with valve body 1, causes in the battery excess air normally not get rid of.Described valve body 1, sealing column 2, depression bar 3 are ABS engineering plastics structure, can prevent that safety valve is aging, prolong the useful life of safety valve.Seal washer 5 on the sealing column 2 is the acid-resisting rubber structure, can prolong the ageing time of seal washer 5 under high temperature and acid mist environment.
Claims (7)
1, a kind of sealed lead acid storage battery safety valve, comprise the valve body that has step, sealing ring, liquid barrier, external connection screw, it is characterized in that: the sealing column that is provided with step in the described valve body, little axle of described sealing column and valve body aperture matched in clearance, the sealing column upper end is provided with a blind hole, and a spring is set in the blind hole, the depression bar of being made up of macro-axis and little axle is set on the blind hole of sealing column, and the big axial end of described depression bar is provided with steam vent.
2, sealed lead acid storage battery safety valve according to claim 1, it is characterized in that: described valve body, sealing column and depression bar are made by the ABS engineering plastics.
3, sealed lead acid storage battery safety valve according to claim 1 is characterized in that: the step of described valve body aperture and macropore is a boss.
4, sealed lead acid storage battery safety valve according to claim 3 is characterized in that: described boss is circular arc, triangle linear structure.
5, sealed lead acid storage battery safety valve according to claim 1 is characterized in that: described sealing column step is provided with a seal washer.
6, sealed lead acid storage battery safety valve according to claim 3, it is characterized in that: described seal washer is made by acid-resisting rubber.
7, sealed lead acid storage battery safety valve according to claim 1 is characterized in that: the depression bar macro-axis that is connected with the valve body macropore is provided with screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02243848 CN2572567Y (en) | 2002-07-25 | 2002-07-25 | Safety valve for sealed lead acid accumulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02243848 CN2572567Y (en) | 2002-07-25 | 2002-07-25 | Safety valve for sealed lead acid accumulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2572567Y true CN2572567Y (en) | 2003-09-10 |
Family
ID=33715981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02243848 Expired - Fee Related CN2572567Y (en) | 2002-07-25 | 2002-07-25 | Safety valve for sealed lead acid accumulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2572567Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102208583A (en) * | 2011-04-28 | 2011-10-05 | 浙江谷神能源科技股份有限公司 | Safety valve for lithium ion power battery |
| CN110780704A (en) * | 2019-10-28 | 2020-02-11 | 南京茗淇信息科技有限公司 | High-convenience dust removal type intelligent wearable device based on 5G network |
-
2002
- 2002-07-25 CN CN 02243848 patent/CN2572567Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102208583A (en) * | 2011-04-28 | 2011-10-05 | 浙江谷神能源科技股份有限公司 | Safety valve for lithium ion power battery |
| CN110780704A (en) * | 2019-10-28 | 2020-02-11 | 南京茗淇信息科技有限公司 | High-convenience dust removal type intelligent wearable device based on 5G network |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |