CN200993255Y - Gas tight casing pressure protection valve - Google Patents
Gas tight casing pressure protection valve Download PDFInfo
- Publication number
- CN200993255Y CN200993255Y CN 200620152353 CN200620152353U CN200993255Y CN 200993255 Y CN200993255 Y CN 200993255Y CN 200620152353 CN200620152353 CN 200620152353 CN 200620152353 U CN200620152353 U CN 200620152353U CN 200993255 Y CN200993255 Y CN 200993255Y
- Authority
- CN
- China
- Prior art keywords
- valve
- valve gap
- spool
- pressure
- pressure protection
- 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 pressure protection valve used on airtight shells. The pressure protection valve comprises a hard valve cap (1), a ductile valve disc (2). The valve cap (1) is provided with a discharge hole and is in an airtight connection with an airtight shell, the valve disc (2) is arranged in the valve cap to block up the air outlet of the shell (3). When the pressure in the shell (3) rises, the valve element (2) shrinks under the action of pressure, an air channel forms between the valve element (2) and the shell (3) after the shrinkage to communicate with the discharge hole; while when the pressure in the shell (3) decreases, the valve after releasing seals up the air outlet of the shell (3). The utility model may control the pressures in battery cases effectively, thereby improving the performances of batteries.
Description
Technical field
The utility model relates to a kind of pressure protection valve of air tight enclosure, especially is applied to the pressure protect of gas in the battery.
Background technique
The continuous progress of portable mobile energy storage technologies proposes more and more higher requirement to the Security of battery; be fit to this application because most batteries all are sealed cells; battery pressure is the key factor of decision battery security; current battery especially is that the pressure protection valve that uses in the non-cylindrical battery working process exists the pressure control difficulty in working process; poor reliability; volume is big; quality is big; shortcoming; these shortcomings have increased shared space and the quality of battery non-active portion on the one hand; reduced the performance of battery; also the normal use of battery has been caused on the other hand to seriously influence, must improve.
Summary of the invention
The utility model is a kind of pressure protection valve of air tight enclosure, and it can effectively be controlled the pressure in the battery container, improves the performance of battery.
The utility model has adopted following technological scheme: a kind of pressure protection valve of air tight enclosure; it comprises the valve gap of hard and the spool with toughness; valve gap is provided with discharge orifice; valve gap and air tight enclosure are tightly connected; spool is positioned at valve gap is blocked housing by the extruding of valve gap air outlet; pressure in housing increases; spool shrinks under the effect of pressure; forming gas channel between the spool after the contraction and housing communicates with the valve gap discharge orifice; pressure in the housing reduces, and the air outlet with housing after spool discharges seals.
Described spool is rubber, nylon, plastics or silica gel.Described valve gap is metal, plastics or glass.The described spool side of being set to body, cylindrical body, cone or cross section are the cylinder of T shape.The described valve gap side of being set to body, cylindrical body, cone or cross section are the cylinder of T shape.Described valve gap and air tight enclosure (3) are connected for welding, bonding or punching press.
The utlity model has following beneficial effect: the utility model is provided with and the close-connected valve gap of housing; valve gap is provided with pre-discharge orifice; scalable spool is arranged in valve gap; spool is positioned on the air outlet of housing; valve gap can compress and protects spool; can come the switch of control valve like this by the gas in the housing to the influence of spool; thereby realize the pressure protect in the battery container; improve the performance of battery; can also before filling electrolytic solution, carry out the leak detection of battery container simultaneously; thereby guarantee the sealing integrity of housing, reject the underproof battery of sealing, guaranteed to add the sealability of solution battery effectively.Valve gap of the present utility model and air tight enclosure make valve gap be connected with the tight of housing for welding, bonding or punching press are connected like this, and technology is simple, easy to operate during making, are convenient to realize the mechanization and the automation of producing.
Description of drawings
Fig. 1 is a structural representation of the present utility model
Fig. 2 is the structural representation of the utility model spool
Embodiment
In Fig. 1 and Fig. 2; the utility model is a kind of pressure protection valve of air tight enclosure; it comprises valve gap 1 and spool 2; valve gap 1 is the cylinder of T type for the cross section; it is made by metallic material; spool 2 also is the cylinder of T type for the cross section; it is made by the rubber of toughness; side at valve gap 1 is provided with discharge orifice; valve gap 1 is tightly connected by welding and air tight enclosure 3, and the air tight enclosure 3 of battery is set at the bottom of the valve, and spool 2 is positioned at valve gap 1 and blocks the air outlet by the extruding of valve gap 1; housing 3 internal pressures increase when unusual when battery occurs; spool 2 constantly shrinks under the effect of pressure, and when being retracted to the limit, the formation gas channel communicates with valve gap 1 discharge orifice between spool 2 and the housing 3; gas is discharged from the discharge orifice of valve gap 1; when the pressure in the battery container 3 reduced, after spool 2 discharged, spool 2 was with the air outlet sealing of housing 3; valve body is closed, and so just can realize sealing and pressure protect to battery.Valve gap of the present utility model 1 in case form with housing 3 closely is connected, and the installation of valve body is just finished, and valve core is in compressive state at this moment, has guaranteed tightness, for the cell reaction of inside provides assurance.
Valve gap 1 of the present utility model can carry out in the final step that battery is made with being connected of battery container 3, before filling electrolytic solution, can arrange to carry out the leak detection of battery container 3, thereby check housing 3 sealing integrity, reject the defective battery of sealing, effectively guaranteed to add the sealability of solution battery.
Claims (6)
1; a kind of pressure protection valve of air tight enclosure; it is characterized in that it comprises the valve gap (1) of hard and the spool (2) with toughness; valve gap (1) is provided with discharge orifice; valve gap (1) is tightly connected with air tight enclosure (3); spool (2) is positioned at valve gap is blocked housing (3) by the extruding of valve gap (1) air outlet; pressure in housing (3) increases; spool (2) shrinks under the effect of pressure; forming gas channel between the spool after the contraction (2) and housing (3) communicates with valve gap (1) discharge orifice; pressure in the housing (3) reduces, and the air outlet with housing (3) after spool (2) discharges seals.
2, tightness pressure protection valve according to claim 1 is characterized in that described spool (2) is rubber, nylon, plastics or silica gel.
3, tightness pressure protection valve according to claim 1 is characterized in that described valve gap (1) is metal, plastics or glass.
4, tightness pressure protection valve according to claim 1 is characterized in that described spool (2) side of being set to body, cylindrical body, cone or cross section are the cylinder of T shape.
5, tightness pressure protection valve according to claim 1 is characterized in that described valve gap (1) side of being set to body, cylindrical body, cone or cross section are the cylinder of T shape.
6, tightness pressure protection valve according to claim 1 is characterized in that described valve gap (1) and air tight enclosure (3) are connected for welding, bonding or punching press.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620152353 CN200993255Y (en) | 2006-12-31 | 2006-12-31 | Gas tight casing pressure protection valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620152353 CN200993255Y (en) | 2006-12-31 | 2006-12-31 | Gas tight casing pressure protection valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200993255Y true CN200993255Y (en) | 2007-12-19 |
Family
ID=38946330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620152353 Expired - Fee Related CN200993255Y (en) | 2006-12-31 | 2006-12-31 | Gas tight casing pressure protection valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200993255Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110450734A (en) * | 2019-08-22 | 2019-11-15 | 奇瑞新能源汽车股份有限公司 | Electric car Manual maintenance switch |
-
2006
- 2006-12-31 CN CN 200620152353 patent/CN200993255Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110450734A (en) * | 2019-08-22 | 2019-11-15 | 奇瑞新能源汽车股份有限公司 | Electric car Manual maintenance switch |
| CN110450734B (en) * | 2019-08-22 | 2022-04-12 | 奇瑞新能源汽车股份有限公司 | Manual maintenance switch of electric automobile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071219 Termination date: 20131231 |