CN203115206U - Pressure release valve for electric vehicle - Google Patents
Pressure release valve for electric vehicle Download PDFInfo
- Publication number
- CN203115206U CN203115206U CN 201320063554 CN201320063554U CN203115206U CN 203115206 U CN203115206 U CN 203115206U CN 201320063554 CN201320063554 CN 201320063554 CN 201320063554 U CN201320063554 U CN 201320063554U CN 203115206 U CN203115206 U CN 203115206U
- Authority
- CN
- China
- Prior art keywords
- valve body
- valve rod
- electric vehicle
- battery pack
- block
- 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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Abstract
The utility model discloses a pressure release valve for an electric vehicle. Air releasing ports (1a) are formed in two opposite sides of the middle portion of a valve body (1), the top end of the valve body (1) is sealed with a cap (2), a valve rod (3) is arranged inside the valve body (1), the upper end of the valve rod (3) stretches into a center through hole of the cap (2), a seal ring (4) is sleeved on the bottom of the valve rod (3), the lower end of seal ring (4) is limited through an annular step surface in the valve body, and a spring (5) is sleeved on the valve rod (3). When a battery pack is filled with carbon dioxide and is used for putting out a fire, the pressure in the battery pack is released by means of the pressure release valve automatically, the pressure in the battery in the battery pack is controllable, and the battery pack is guaranteed to be filled with sufficient carbon dioxide. Therefore, combustion of the battery pack due to the fact that the vehicle crashes is prevented effectively, damage to the battery pack due to the fact that pressure is too high is avoided, and the safety of the battery pack, the electric vehicle and people is improved greatly.
Description
Technical field
The utility model belongs to the electric vehicle engineering field, specifically, and the particularly Decompression valves on the electric vehicle.
Background technique
At present, new-energy automobile is becoming the exploitation of exploitation focus, particularly pure electric automobile, has become the emphasis of new-energy automobile exploitation, and each big automobile enterprise all researches and develops dropping into huge fund.Electric vehicle is a kind of new vehicle, and its safety problem is noticeable especially.Because technology still in period of expansion, the situation that electric vehicle burns because of collision also occurred.Therefore, how realizing cell bag safety, fire prevention, anticreep, is just to make great efforts the technical problem that solves in the industry.The producer that has sets up fire-fighting equipment in cell bag, when fierce collision takes place electric vehicle, comes self-extinguishing by fire-fighting equipment sparging carbon dioxide gas in the cell bag.After but high-pressure carbon dioxide gas enters cell bag, can make the cell bag internal pressure increase and damage cell bag.
The model utility content
Technical problem to be solved in the utility model is to provide a kind of can make the controlled used for electric vehicle Decompression valves of cell bag internal pressure.
The technical solution of the utility model is as follows: a kind of used for electric vehicle Decompression valves, has valve body (1), described valve body (1) is the hollow sleeve structure, the opposite side at this valve body (1) middle part has leakage port (1a), the top of valve body (1) is sealed by block (2), valve rod (3) is set in described valve body (1), the upper end of this valve rod (3) is stretched in the central through bore of block (2), valve rod (3) is slidingly matched with block (2), at the bottom of valve rod (3) suit seal ring (4), sealing circle (4) is positioned at the below of leakage port (1a), and seal ring (4) is spacing by the annular table terrace in the valve body (1) downwards, go up pocketed springs (5), the upper end of this spring (5) and block (2) butt, the step butt on the lower end of spring (5) and the valve rod (3) at described valve rod (3).
The utility model is installed on the cell bag of electric vehicle, when fierce collision takes place electric vehicle, fire-fighting equipment is in the cell bag during sparging carbon dioxide gas, pressure in the cell bag raises gradually, when pressure surpassed specified value, the gas in the cell bag upwards promoted seal ring, and the elastic force that makes seal ring and valve rod overcome spring moves upward, gas can enter in the valve body like this, and discharges outside the cell bag by leakage port.Under the effect of recoil of spring power, seal ring resets downwards after the pressure release, again Decompression valves cuts out.This shows that the utility model is not only simple in structure, response is sensitive, reliable, and can guarantee that the cell bag internal pressure is controlled, is damaged to avoid cell bag.Valve rod and block are slidingly matched, and play guiding, make seal ring only in the above-below direction motion, thereby have further improved the reliability that Decompression valves opens and closes.
Install for the ease of block, and it is firm that block is connected, the lower end of described block (2) embeds in the valve body (1), both screw-thread fit.
As preferably, described spring (5) is volute spring, and good stability unstable phenomenon can not take place like this.
Valve body is installed in cell bag for convenience, and it is firm that valve body is connected, and the outer peripheral surface of described valve body (1) lower end is provided with outside thread.
Beneficial effect: the utility model charges into when carbon dioxide puts out a fire in cell bag, can releasing pressure automatically, make the cell bag internal pressure controlled, and sufficient carbon dioxide arranged in the maintenance cell bag, thereby the cell bag that has effectively prevented from causing because of vehicle collision burning, the cell bag of having avoided causing because of overpressure is damaged, and has improved cell bag, electric vehicle and safety of persons greatly.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
As shown in Figure 1, the utility model is made of parts such as valve body 1, block 2, valve rod 3, seal ring 4 and springs 5.Wherein, valve body 1 is the hollow sleeve structure, and the opposite side at this valve body 1 middle part has leakage port 1a, and leakage port 1a communicates with the inner chamber of valve body 1.Be processed with outside thread on the outer wall of described valve body 1 lower end, the bottom of valve body 1 can embed the top of cell bag (not drawing among the figure), both screw-thread fit.The top of valve body 1 is sealed by block 2, and the lower end of block 2 embeds in the valve body 1, both screw-thread fit.In described valve body 1 valve rod 3 is set, the shaft axis of the shaft axis of this valve rod 3 and valve body 1 point-blank.The upper end of valve rod 3 is stretched in the central through bore of block 2, and valve rod 3 is slidingly matched with block 2.At the bottom of valve rod 3 suit seal ring 4, sealing circle 4 is positioned at the below of leakage port 1a, and seal ring 4 is spacing by the annular table terrace in the valve body 1 downwards.Pocketed springs 5 on described valve rod 3, this spring 5 is preferably volute spring, the upper end of spring 5 and block 2 butts, the step butt on the lower end of spring 5 and the valve rod 3.
Working principle of the present utility model is as follows:
In the process to the cell bag self-extinguishing, after high-pressure carbon dioxide gas enters cell bag, can make the cell bag internal pressure increase, when the cell bag internal pressure surpasses specified value, gas in the cell bag upwards promotes seal ring 4, the elastic force that makes seal ring 4 and valve rod 3 overcome spring 5 moves upward, and gas can enter in the valve body 1 like this, and discharges outside the cell bag by leakage port 1a.Under the effect of spring 5 spring-back forces, seal ring 4 resets downwards, again Decompression valves cuts out after the pressure release, makes and maintains enough carbon dioxides in the cell bag.
Claims (4)
1. used for electric vehicle Decompression valves, has valve body (1), it is characterized in that: described valve body (1) is the hollow sleeve structure, the opposite side at this valve body (1) middle part has leakage port (1a), the top of valve body (1) is sealed by block (2), valve rod (3) is set in described valve body (1), the upper end of this valve rod (3) is stretched in the central through bore of block (2), valve rod (3) is slidingly matched with block (2), at the bottom of valve rod (3) suit seal ring (4), sealing circle (4) is positioned at the below of leakage port (1a), and seal ring (4) is spacing by the annular table terrace in the valve body (1) downwards, go up pocketed springs (5), the upper end of this spring (5) and block (2) butt, the step butt on the lower end of spring (5) and the valve rod (3) at described valve rod (3).
2. used for electric vehicle Decompression valves according to claim 1 is characterized in that: the lower end of described block (2) embeds in the valve body (1), both screw-thread fit.
3. used for electric vehicle Decompression valves according to claim 1 and 2, it is characterized in that: described spring (5) is volute spring.
4. used for electric vehicle Decompression valves according to claim 1, it is characterized in that: the outer peripheral surface of described valve body (1) lower end is provided with outside thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320063554 CN203115206U (en) | 2013-02-04 | 2013-02-04 | Pressure release valve for electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320063554 CN203115206U (en) | 2013-02-04 | 2013-02-04 | Pressure release valve for electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203115206U true CN203115206U (en) | 2013-08-07 |
Family
ID=48895554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320063554 Expired - Fee Related CN203115206U (en) | 2013-02-04 | 2013-02-04 | Pressure release valve for electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203115206U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104728A (en) * | 2013-02-04 | 2013-05-15 | 力帆实业(集团)股份有限公司 | Safety valve used for electric automobile |
| CN105370941A (en) * | 2015-12-11 | 2016-03-02 | 四川嘉星燃气设备制造有限公司 | Safety blow-off valve for gas pipeline |
| CN105370940A (en) * | 2015-12-11 | 2016-03-02 | 四川嘉星燃气设备制造有限公司 | Safety blow-off valve |
| CN115054497A (en) * | 2022-05-31 | 2022-09-16 | 中国第一汽车股份有限公司 | Anti-infringement mechanical massage device, automobile seat and vehicle |
-
2013
- 2013-02-04 CN CN 201320063554 patent/CN203115206U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104728A (en) * | 2013-02-04 | 2013-05-15 | 力帆实业(集团)股份有限公司 | Safety valve used for electric automobile |
| CN105370941A (en) * | 2015-12-11 | 2016-03-02 | 四川嘉星燃气设备制造有限公司 | Safety blow-off valve for gas pipeline |
| CN105370940A (en) * | 2015-12-11 | 2016-03-02 | 四川嘉星燃气设备制造有限公司 | Safety blow-off valve |
| CN115054497A (en) * | 2022-05-31 | 2022-09-16 | 中国第一汽车股份有限公司 | Anti-infringement mechanical massage device, automobile seat and vehicle |
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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 |
Granted publication date: 20130807 Termination date: 20200204 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |