CN2733127Y - Gas-liquid separation type release valve for charging battery - Google Patents
Gas-liquid separation type release valve for charging battery Download PDFInfo
- Publication number
- CN2733127Y CN2733127Y CN 200420046324 CN200420046324U CN2733127Y CN 2733127 Y CN2733127 Y CN 2733127Y CN 200420046324 CN200420046324 CN 200420046324 CN 200420046324 U CN200420046324 U CN 200420046324U CN 2733127 Y CN2733127 Y CN 2733127Y
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- CN
- China
- Prior art keywords
- gas
- sealing gasket
- release valve
- safety valve
- flat spring
- 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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- Gas Exhaust Devices For Batteries (AREA)
Abstract
The utility model discloses a gas-liquid separation type release valve for charging batteries, the key point lies in the gas-liquid separation type release valve for charging battery comprising a battery upper cover, a sealing gasket, a flat spring and a release valve shell; the battery upper cover is provided with an air exhaust port, the upper part of the air exhaust port is provided with the sealing gasket which can be appressed to the battery upper cover and can makes the air exhaust port enclosed, the sealing gasket is buckled and fixed by the flat spring, and the flat spring is fixed to the shell of the release valve; the convex shell of the release valve is provided with an air vent and is fixed by the battery upper cover. The utility model overcomes the deficiency of prior art, providing a release valve which has simple structure, gas-liquid separation, good shock resistance and good impact property, and the sealing element can not stagnate and invalidate.
Description
[technical field]
The utility model relates to a kind of safety installations of chargeable cell, relates in particular to a kind of safety valve that prevents the chargeable cell blast.
[background technique]
Rechargeable battery, owing to have high-energy-density and very long life-span and free from environmental pollution, be commonly used for the driving power of portable unit, electric vehicle, battery-operated motor cycle are just progressing into market, chargeable cell uses the field more and more widely, battery is also increasing, and safety issue is also more and more outstanding.This battery is airtight at ordinary times, must have the safety installations that prevents the chargeable cell blast.
Fig. 1 is the chargeable cell safety valve structure that adopts at present, and it is made up of valve seat a, seal ring b, valve body c, adjusting bolt d, spool e, spring f, sealing gasket g.Valve seat a and cell cover h weld together, and utilize screw thread that valve body c and valve seat a are linked together, and with seal ring b sealing, prevent the inside battery gas leak.Regulating the formation of bolt d inner cylindrical surface and spool e external cylindrical surface is slidingly matched to guarantee that spool e only moves up and down.When air-storage chamber i pressure raises gradually, act on the precompression that gas pressure on the sealing gasket g overcomes spring f gradually sealing gasket g is lifted gradually, air-storage chamber i gas is just discharged outside the battery.Along with the discharge of gas, air-storage chamber i pressure reduces gradually, and when air-storage chamber i gas acted on power on the sealing gasket g less than the deformation force of spring f, sealing gasket f just can close relief opening j and stop exhaust, guarantees that cell internal pressure is maintained within a certain range all the time.
There is following problem in the safety valve of above-mentioned prior art:
1, the prior art component part is many, complex structure, cost height; 2, there is the alkali mist to discharge in the exhaust process, can on safety valve structure spare, form the crystallization of alkali, and the gap of regulating bolt and spool is less, and the alkali crystallization may make spool block and cause cracking pressure rising even stuck, if increasing is regulated the gap of bolt and spool then may be caused seal failure; 3, the safety valve relief opening is lower than cell cover, just may flood relief opening when inside battery has free electrolyte, discharges electrolytic solution when causing exhaust; 4, adopt helical spring and threaded adjusting, under vibration and shock environment condition, may make thread looseness and change opening pressure of safety valve.
The utility model has carried out useful improvement in order to overcome above shortcoming.
[model utility content]
The utility model is at the shortcoming of prior art, provide a kind of simple in structure, sealed member can clamping stagnation can inefficacy yet, gas-liquid separation, safety valve that the against shock impact property is good.
In order to solve the technical problem of above-mentioned existence, the utility model adopts following technical proposal:
A kind of gas-liquid separated safety valve of chargeable cell comprises cell cover, sealing gasket, flat spring, safety valve shell; Cell cover is provided with relief opening, and the relief opening top is provided with the sealing gasket that can be close to cell cover and can make the relief opening sealing, and sealing gasket is fixed by flat spring, and flat spring is fixed on the safety valve shell; The safety valve shell of projection is provided with ventilating hole and is fixed by cell cover.
The gas-liquid separated safety valve of aforesaid a kind of chargeable cell is characterized in that the described cell cover formation air-storage chamber that raises up, and the relief opening of cell cover is arranged on the sealing gasket below.
The gas-liquid separated safety valve of aforesaid a kind of chargeable cell is characterized in that described sealing gasket is provided with annular groove, and the hole in the middle of the flat spring is stuck in this groove.
The utility model compared with prior art has following advantage: 1. simple in structure, component part reduces greatly; Processing technology is simple, and cost is 1/20 of a prior art; Volume reduces, and is 1/3 of prior art; In light weight, be 1/5 of prior art; 2, matching problem very close to each other between safety valve moving element sealing gasket and static part cell cover and the safety valve shell, thereby do not have catching phenomenon, can not cause seal failure yet; 3, cell cover convexes to form an air-storage chamber, and relief opening is higher than air-storage chamber again, the problem that does not exist relief opening to be flooded by electrolytic solution, thereby the rising of the gas in the battery gathers the relief opening part, gas discharge during exhaust, liquid that can not discharge, realization gas-liquid separation; 4, do not have the thread looseness of prior art and change opening pressure of safety valve, against shock and impact property are good.
[description of drawings]
Fig. 1 is the structural representation of the safety valve of prior art;
Fig. 2 is the structural representation of safety valve of the present utility model.
[embodiment]
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:
A kind of gas-liquid separated safety valve of chargeable cell is made up of cell cover 1, sealing gasket 2, flat spring 3, safety valve shell 4.Cell cover 1 is provided with relief opening 5, and relief opening 5 tops are provided with the sealing gasket 2 that can be close to cell cover 1 and can make relief opening 5 sealings, and sealing gasket 2 is fixed by flat spring 3, and flat spring 3 is fixed on the safety valve shell 4; The safety valve shell 4 of projection is provided with ventilating hole 6 and fixing by cell cover 1.
Sealing gasket 2 is provided with annular groove, and the hole in the middle of the flat spring 3 is stuck in this annular groove.
Point is welded in the safety valve shell of cell cover and fixes flat spring, utilizes the elasticity of sealing gasket that it is stuck in the middle hole of flat spring, and it is whole that sealing gasket and flat spring are constituted.
According to the bearing capacity of the size of battery, battery case, the battery rigidity in formed degree of disturbing in advance and work degree of the disturbing scope when the gas production under the limit case comes the size of designing and arranging gas port and flat spring to install.
Working principle: when air-storage chamber pressure raises gradually, act on the precompression that gas pressure on the sealing gasket overcomes flat spring gradually sealing gasket is lifted gradually, air-storage chamber gas is just discharged outside the battery, and the ventilating hole by the safety valve shell is discharged to the external world again.Discharge along with gas, air-storage chamber pressure reduces gradually, and when air-storage chamber gas acted on pressure on the sealing gasket less than the deformation force of flat spring, sealing gasket just can be closed relief opening and be stopped exhaust, inside battery is hedged off from the outer world, guarantees that cell internal pressure is maintained within a certain range all the time.
Claims (3)
1, a kind of gas-liquid separated safety valve of chargeable cell is characterized in that comprising cell cover (1), sealing gasket (2), flat spring (3), safety valve shell (4); Cell cover (1) is provided with relief opening (5), relief opening (5) top is provided with the sealing gasket (2) that can be close to cell cover (1) and can make relief opening (5) sealing, sealing gasket (2) is fixed by flat spring (3), and flat spring (3) is fixed on the safety valve shell (4); The safety valve shell (4) of projection is provided with ventilating hole (6) and fixing by cell cover (1).
2, the gas-liquid separated safety valve of a kind of chargeable cell according to claim 1 is characterized in that described cell cover (1) raises up to form air-storage chamber (7) that the relief opening (5) of cell cover (1) is arranged on sealing gasket (2) below.
3, the gas-liquid separated safety valve of a kind of chargeable cell according to claim 1 is characterized in that described sealing gasket (2) is provided with annular groove, and the hole in the middle of the flat spring (3) is stuck in this groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420046324 CN2733127Y (en) | 2004-05-25 | 2004-05-25 | Gas-liquid separation type release valve for charging battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420046324 CN2733127Y (en) | 2004-05-25 | 2004-05-25 | Gas-liquid separation type release valve for charging battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2733127Y true CN2733127Y (en) | 2005-10-12 |
Family
ID=35068968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420046324 Expired - Fee Related CN2733127Y (en) | 2004-05-25 | 2004-05-25 | Gas-liquid separation type release valve for charging battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2733127Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563148A (en) * | 2010-12-20 | 2012-07-11 | 三星电机株式会社 | Air valve for energy storage device and energy storage device including the same |
| CN106090341A (en) * | 2016-05-27 | 2016-11-09 | 浙江广播电视大学 | A kind of impeller pump vapor-liquid separation valve group |
-
2004
- 2004-05-25 CN CN 200420046324 patent/CN2733127Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563148A (en) * | 2010-12-20 | 2012-07-11 | 三星电机株式会社 | Air valve for energy storage device and energy storage device including the same |
| CN106090341A (en) * | 2016-05-27 | 2016-11-09 | 浙江广播电视大学 | A kind of impeller pump vapor-liquid separation valve group |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: NATIONAL HIGH-TECH. GREEN MATERIAL DEV. CENTRE Free format text: FORMER OWNER: ZHONGSHAN NEW MATERIAL ENGINEERING CENTER Effective date: 20060929 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20060929 Address after: 100081 Beijing city Haidian District Dahui Temple No. 6 Patentee after: National High-Technologies Green Materials Development Center Address before: 528400 Guangdong province Zhongshan Torch Development Zone Industrial Road No. 17 torch sunlike Zhongshan New Material Engineering Center Patentee before: Zhongshan New Material Engineering Center |
|
| ASS | Succession or assignment of patent right |
Owner name: FOREVER BATTERY CO., LTD. Free format text: FORMER OWNER: NATIONAL HIGH-TECH. GREEN MATERIAL DEV. CENTRE Effective date: 20061027 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20061027 Address after: 528437 No. 17 Xingye Road, torch hi tech Industrial Development Zone, Zhongshan, Guangdong, Zhongshan Patentee after: Zhongjusenlai Hight Technology Co., Ltd., Zhongshan Address before: 100081 Beijing city Haidian District Dahui Temple No. 6 Patentee before: National High-Technologies Green Materials Development Center |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20051012 Termination date: 20130525 |