CN106678402A - Air valve - Google Patents
Air valve Download PDFInfo
- Publication number
- CN106678402A CN106678402A CN201610659895.9A CN201610659895A CN106678402A CN 106678402 A CN106678402 A CN 106678402A CN 201610659895 A CN201610659895 A CN 201610659895A CN 106678402 A CN106678402 A CN 106678402A
- Authority
- CN
- China
- Prior art keywords
- air inlet
- ventilated membrane
- housing
- elastic component
- air valve
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/0413—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded in the form of closure plates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/164—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side and remaining closed after return of the normal pressure
Abstract
The utility model relates to a supporting field of energy storage device, especially, relate to an air valve, which comprises a housin, elastic component and ventilative subassembly, the chamber is placed to the existence in the casing, air inlet and gas outlet, ventilative subassembly and elastic component are all installed and are being placed the intracavity, the one end of elastic component is fixed, the other end of elastic component can promote the sealed air inlet of ventilative subassembly, ventilative subassembly includes the ventilated membrane, the ventilated membrane all communicates with each other with air inlet and gas outlet, when the atmospheric pressure of air inlet reaches the setting value, ventilative subassembly breaks away from and forms the communicating clearance with the gas outlet with the encapsulated situation of air inlet and both. The utility model provides an air valve balances the exhaust through the ventilated membrane, and when power battery package took place thermal runaway and produced the high pressure, the elasticity of elastic component was overcome to gaseous formation effort on ventilative subassembly surface, made to form the clearance between ventilative subassembly and the air inlet, and a large amount of gases arrived the gas outlet by the clearance and discharges to realize explosion-proof carminative purpose. The air-permeable component can not be damaged and can be repeatedly used, so that the cost is lower.
Description
Technical field
The application is related to the supporting field of energy storage device, more particularly to a kind of air valve.
Background technology
At present, balanced valve and anti-riot valve can be typically provided with the casing of electrokinetic cell, balanced valve is exactly inside and outside balance box
Air pressure, it is adaptable to the less operating mode of air pressure.And anti-riot valve is usually quick after the increase of box house air pressure moment discharge in a large number
Gas, the risk for preventing a large amount of other damages for producing from even exploding.
Although also have in correlation technique integrating balance and anti-riot air valve, carry out generally by the mode of damage
It is explosion-proof, therefore once explosion-proof dangerous situation just must be changed to be only capable of reply, and cannot reuse, it is relatively costly.
The content of the invention
This application provides a kind of air valve, can solve the problem that the problems referred to above.
The air valve that the embodiment of the present application is provided, including housing, elastic component and ventilating component,
There is placed cavity, air inlet and gas outlet in the housing, the ventilating component and the elastic component are pacified
It is mounted in the placed cavity, one end of the elastic component is fixed, the other end of the elastic component can promote the ventilating component
The air inlet is sealed,
The ventilating component includes ventilated membrane, and the ventilated membrane is communicated with the air inlet and the gas outlet, when
When the air pressure of the air inlet reaches setting value, the ventilating component departs from the sealing state with the air inlet and both form
Gap, the gap communicates with the gas outlet.
Preferably, the ventilated membrane is waterproof ventilated membrane.
Preferably, the porosity of the ventilated membrane is not less than 85%.
Preferably, the ventilating component also includes support member,
The support member is supported to the surface of the ventilated membrane.
Preferably, the support member is supported to the both side surface of the ventilated membrane simultaneously.
Preferably, the support member is nonwoven layer, and the nonwoven layer covers the surface of the ventilated membrane.
Preferably, the ventilating component also includes strengthening the edge quilt of safe edge, the support member and the ventilated membrane
The reinforcement safe edge parcel, the elastic component and the air inlet contact with the reinforcement safe edge.
Preferably, the elastic component is spring.
Preferably, the housing includes the first housing and the second housing, and first housing can with second housing
Dismounting is tightly connected, and forms the placed cavity, and the air inlet is located in the first shell body, and the gas outlet is located at described the
In two housings.
Preferably, there is enclosing on first housing, the enclosing around air inlet setting, and with described second
Gap is left between the inwall of housing, the elastic component and the ventilating component are arranged in the enclosing, on the enclosing
With ventilation breach.
Preferably, the correspondence ventilation breach is provided with air channel on the inwall of second housing.
Preferably, it is provided with keeper on the inwall of the enclosing or second housing.
Preferably, second housing has air guide joint, and the air guide joint is connected with the gas outlet.
Preferably, also including blast pipe, the blast pipe is connected with the air guide joint sealing.
The technical scheme that the embodiment of the present application is provided can reach following beneficial effect：
The air valve that the embodiment of the present application is provided is balanced exhaust by ventilated membrane, and works as electrokinetic cell bag and heat mistake occurs
When controlling and producing high pressure, gas quickly through ventilated membrane, and cannot be formed active force and overcome elastic component on ventilating component surface
Elastic force, makes to form gap between ventilating component and air inlet, and a large amount of gases reach gas outlet and discharge by the gap, explosion-proof to realize
The purpose of exhaust.Ventilating component will not be damaged, reusable, therefore cost is relatively low.
It should be appreciated that the general description of the above and detailed description hereinafter are only exemplary, this can not be limited
Application.
Description of the drawings
Air valve and the assembling structure schematic diagram of battery bag that Fig. 1 is provided by the embodiment of the present application；
Cut open structural representation in the side of the air valve that Fig. 2 is provided by the embodiment of the present application；
The configuration schematic diagram of the air valve that Fig. 3 is provided by the embodiment of the present application；
The configuration schematic diagram of the ventilating component that Fig. 4 is provided by the embodiment of the present application.
Reference：
1- air valves；
10- housings；
The housings of 100- first；
100a- enclosings；
100b- ventilation breach；
100c- keepers；
The housings of 102- second；
102a- air channels；
102b- air guide joints；
11- elastic components；
12- ventilating components；
120- ventilated membranes；
122- support members；
124- strengthens safe edge；
13- seals；
14- blast pipes；
15- clips；
2- battery bags.
Accompanying drawing herein is merged in specification and constitutes the part of this specification, shows the enforcement for meeting the application
Example, and be used to explain the principle of the application together with specification.
Specific embodiment
Below by specific embodiment and combine accompanying drawing the application is described in further detail.Described in text
"front", "rear", "left", "right", " on ", D score with the laying state of the air valve in accompanying drawing as reference.
As shown in Figure 1 to Figure 3, the embodiment of the present application provides a kind of air valve 1, including housing 10, elastic component 11 and thoroughly
Pneumatic module 12, may also include in addition seal 13, blast pipe 14 and clip 15 etc..Housing 10 is the agent structure of air valve, its
Placed cavity is internally formed, elastic component 11 and ventilating component 12 are installed in placed cavity.Typically housing 10 can be designed as
One housing 100 and the two parts of the second housing 102, can pass through rivet hot, bonding, weldering between the first housing 100 and the second housing 102
Connect, buckle etc. is connected, and form placed cavity, and therebetween can be by seal 13, such as sealing gasket, sealing ring etc.
It is connected and sealed.
There is air inlet (not shown) on the first housing 100, there is gas outlet on the second housing 102 (in figure
It is not shown), the gas in battery bag 2 is entered inside air inlet valve 1 by air inlet, then is discharged by gas outlet.
In placed cavity, one end of elastic component 11 is fixed, according to the self structure of elastic component 11 and applying for elastic force
Force direction, can be fixed on the first housing 100, it is also possible to be fixed on the second housing 102, the elasticity in Fig. 2 and Fig. 3
Part 11 is helical spring, therefore its one end is fixed on the second housing 102.The other end of elastic component 11 and the phase of ventilating component 12
Support, and ventilating component 12 can be promoted to seal air inlet, sealing air inlet mentioned here refers to gas cannot be by ventilative group
Faying face between part 12 and air inlet passes through, but during balance is ventilative, gas can be by air inlet directly by ventilative
Component 12, will be described in detail below.As shown in figure 4, ventilating component 12 is the core component of the present embodiment, including ventilative
Film 120, support member 122 and reinforcement safe edge 124.
As shown in figure 1, air valve 1 is arranged in battery bag 2 by bonding, welding, riveting or other modes, and make air inlet
Mouth is connected with the inside of battery bag 2.Ventilated membrane 120 can adopt waterproof ventilated membrane, such as PE gas permeable polymers film, ventilated membrane
120 can lentamente pass through gas, therefore, it is possible to be balanced to the pressure in battery bag 2, ventilated membrane 120 and air inlet and
Gas outlet communicates, therefore these gases can be discharged after ventilated membrane 120 by gas outlet.Slowly ventilative process is due to gas
Pressure is little, therefore cannot overcome the elastic force of elastic component 11, and fitted seal can be continued between ventilating component 12 and air inlet.
The ventilated membrane that can have been bought on Vehicles Collected from Market is substantially and is applied to other technical fields, thickness about 1.8mm, hole
Rate is normally only 75% or so, but the gas permeability of this ventilated membrane is poor, is only capable of maintaining the ventilative speed of 1L/min, at all cannot
It is adapted to the ventilative demand of balance of electrokinetic cell bag.Therefore, the present embodiment has carried out process modification to this ventilated membrane, adopts two
The expanding pressure roller that individual speed is differed, ventilated membrane is drawn and is wrapped in tension on the roller of two friction speeds, not synchronized by two rollers
Spend to adjust amount of tension, by ventilative film stretching.Ventilative film thickness after stretching is down to 1.2mm, porosity can reach 85% with
On, ventilative speed can reach 10L/min, more conform to the ventilative operating mode of balance of electrokinetic cell bag.
When there is thermal run away condition inside battery bag 2, substantial amounts of gas and heat can be at short notice produced, be promoted
Gas pressure rapid increase in battery bag 2, ventilated membrane 120 cannot in time pass through these gases, therefore can be in the court of ventilated membrane 120
Form pressure accumulated to the side of air inlet.Ventilated membrane on market is big due to porosity low thickness, and intensity can reach 6~
10MPa, but the ventilated membrane 120 obtained after stretching is due to improve porosity, while thickness is reduced, therefore its intensity is only
It is able to maintain that in 1~2MPa, is easier to tear in the case where side is pressure accumulated and is broken.As shown in figure 4, in order to avoid pressure mistake
Ventilated membrane 120 greatly and is directly torn, the surface of ventilated membrane 120 is covered in using support member 122, but it is noted that can not be blocked completely
Ventilated membrane 120, support member 122 can preferably select nonwoven layer, nonwoven in configurations such as latticed, frame-likes in the present embodiment
Layer of cloth, such as PP spun-bonded non-woven fabrics self-strength are high, and inside possesses a large amount of hole supplied gas and passes through, and support member 120 is covered
The two sides of lid ventilated membrane 120, therefore can either be that the both sides of ventilated membrane 120 provide support simultaneously, while and gas will not be hindered
Slow transit through.
Continuing with referring to Fig. 4, either ventilated membrane 120 or support member 122, its intensity is relative to elastic component 11 and shell
Body 10 or relatively low, therefore the present embodiment is using strengthening safe edge 124 by ventilated membrane 120 and the edge wrap of support member 122, and
Contacted and acted on elastic component 11 and air inlet by strengthening safe edge 124, so as to playing protection ventilated membrane 120 and propping up
The effect of support member 122.Strengthening safe edge 124 can be made up of the sealing ring of two panels high intensity, using two panels sealing ring by ventilated membrane
120 and the edge of support member 122 be clipped in the middle, be then connected.One of sealing ring is abutted with the edge of air inlet
Sealing, another sealing ring is then connected with elastic component 11.Elastic component 11 can using spring, extension spring etc., so can either with it is close
Seal is connected, and ventilated membrane 120 can be conceded again to the passage between gas outlet, is easy to gas to pass through.
There is enclosing 100a, enclosing 100a to arrange around air inlet on the first housing 100, elastic component 11 and ventilative group
Part 12 is arranged in enclosing 100a, to carry out to the movement of ventilating component 12 spacing and to be oriented to.With the gradually increase of pressure,
Pressure can gradually overcome the elastic force that elastic component 11 is provided ventilating component 12, and when air pressure reaches setting value, ventilating component 12 is just
Can pushed away from, depart from the sealing state with air inlet, make to form gap between reinforcement safe edge 124 and the edge of air inlet, in a large number
Gas just can be rapidly entered by the gap, and there is ventilation breach 100b, ventilation breach 100b can be through holes, engrave on enclosing 100a
Hollow structure, supplied gas pass through.At the same time, gap is also left between the inwall of enclosing 100a and the second housing 102, gas is by entering
Gas port can pass through in the gaps that enter between enclosing 100a and the second housing 102 of ventilation breach 100b after entering, and finally suitable
Gap and arrive at gas outlet.For the gap between the inwall for expanding enclosing 100a and the second housing 102 as far as possible, the present embodiment exists
The position of correspondence ventilation breach 100b is provided with air channel 102a on the inwall of the second housing 102.And also enclosing 100a with
And second be provided with keeper 100c on housing 102, it is fixed that keeper 100c be able to can be carried out for positioning convex, detent etc.
The structure of position, breach of ventilating can be guaranteed by keeper 100c in the first housing 100 and the second housing 102 when being connected
100b is aligned with air channel 102a.
Due to the operating mode difference around battery bag 2, therefore sometimes exhaust passage needs to be attached with other parts, such as schemes
Shown in 3, the present embodiment can have an air guide joint 102b, air guide joint 102b to connect with gas outlet on the second housing 102,
And can arrange some in end is used for and other parts, such as structure that blast pipe 14 is attached.Additionally, according to need
Will, air guide joint 102b can also bend certain angle relative to the axis of air inlet.Blast pipe 14 and air guide joint 102b
Between can be sealed by clip 15.Blast pipe 14 can be telescopic, to adapt to the needs of different connecting lengths, section shape
Shape can be oval, square or other shapes, be not limited to circle.
The air valve that the present embodiment is provided is reusable, therefore cost is relatively low.
The preferred embodiment of the application is the foregoing is only, the application is not limited to, for the skill of this area
For art personnel, the application can have various modifications and variations, any modification, equivalent substitution and improvements made based on the application
Deng should be included within the protection domain of the application.
Claims (10)
1. a kind of air valve, it is characterised in that including housing, elastic component and ventilating component,
There is placed cavity, air inlet and gas outlet in the housing, the ventilating component and the elastic component are installed in
In the placed cavity, one end of the elastic component is fixed, and the other end of the elastic component can promote the ventilating component to seal
The air inlet,
The ventilating component includes ventilated membrane, and the ventilated membrane is communicated with the air inlet and the gas outlet, when described
When the air pressure of air inlet reaches setting value, between the sealing state of the ventilating component disengaging and the air inlet and both formation
Gap, the gap communicates with the gas outlet.
2. air valve as claimed in claim 1, it is characterised in that the ventilated membrane is waterproof ventilated membrane.
3. air valve as claimed in claim 1, it is characterised in that the porosity of the ventilated membrane is not less than 85%.
4. air valve as claimed in claim 3, it is characterised in that the ventilating component also includes support member,
The support member is supported to the surface of the ventilated membrane.
5. air valve as claimed in claim 4, it is characterised in that the support member enters to the both side surface of the ventilated membrane simultaneously
Row is supported.
6. the air valve as described in claim 4 or 5, it is characterised in that the support member is nonwoven layer, the nonwoven layer is covered
Cover the surface of the ventilated membrane.
7. the air valve as described in claim 4 or 5, it is characterised in that the ventilating component also includes strengthening safe edge, the support
The edge of part and the ventilated membrane is added by the reinforcement safe edge parcel, the elastic component and the air inlet with described
Strong safe edge contacts.
8. the air valve as described in any one of claim 1 to 5, it is characterised in that the elastic component is spring.
9. the air valve as described in any one of claim 1 to 5, it is characterised in that the housing includes the first housing and second
Housing, first housing is connected with the second housing removable seal, forms the placed cavity, and the air inlet is located at institute
State in first shell body, the gas outlet is located in the second shell body.
10. air valve as claimed in claim 9, it is characterised in that have enclosing on first housing, the enclosing surrounds institute
Air inlet setting is stated, and gap is left and the inwall of second housing between, the elastic component and the ventilating component are pacified
It is mounted in the enclosing, there is ventilation breach on the enclosing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610659895.9A CN106678402A (en) | 2016-08-12 | 2016-08-12 | Air valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610659895.9A CN106678402A (en) | 2016-08-12 | 2016-08-12 | Air valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106678402A true CN106678402A (en) | 2017-05-17 |
Family
ID=58839850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610659895.9A Pending CN106678402A (en) | 2016-08-12 | 2016-08-12 | Air valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106678402A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112303308A (en) * | 2019-08-23 | 2021-02-02 | 宁德时代新能源科技股份有限公司 | Explosion-proof valve, battery package and electric automobile |
| CN116066608A (en) * | 2022-03-09 | 2023-05-05 | 江苏拓米洛高端装备股份有限公司 | Pressure balance structure and environment test box |
| WO2023077383A1 (en) * | 2021-11-04 | 2023-05-11 | 宁德时代新能源科技股份有限公司 | Box assembly of battery, battery, and method for manufacturing box assembly of battery |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102267266A (en) * | 2011-04-27 | 2011-12-07 | 张继承 | Breathable membrane for warming plaster, preparation method and application thereof |
| WO2013121990A1 (en) * | 2012-02-16 | 2013-08-22 | オートモーティブエナジーサプライ株式会社 | Explosion-prevention valve for battery pack |
| CN204905329U (en) * | 2015-07-10 | 2015-12-23 | 惠州市沃润科技有限公司 | Explosion -proof exhaust subassembly of lead acid battery prevention of seepage |
| CN105546169A (en) * | 2016-01-11 | 2016-05-04 | 唐凯 | Waterproof air-permeable valve |
| US20160152397A1 (en) * | 2013-07-09 | 2016-06-02 | Nitto Denko Corporation | Ventilation member, method for producing ventilation member, and ventilation container |
| CN105720222A (en) * | 2016-05-04 | 2016-06-29 | 惠州市沃瑞科技有限公司 | Pressure anti-explosion decompression balance valve utilizing small-sized battery pack |
-
2016
- 2016-08-12 CN CN201610659895.9A patent/CN106678402A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102267266A (en) * | 2011-04-27 | 2011-12-07 | 张继承 | Breathable membrane for warming plaster, preparation method and application thereof |
| WO2013121990A1 (en) * | 2012-02-16 | 2013-08-22 | オートモーティブエナジーサプライ株式会社 | Explosion-prevention valve for battery pack |
| US20160152397A1 (en) * | 2013-07-09 | 2016-06-02 | Nitto Denko Corporation | Ventilation member, method for producing ventilation member, and ventilation container |
| CN204905329U (en) * | 2015-07-10 | 2015-12-23 | 惠州市沃润科技有限公司 | Explosion -proof exhaust subassembly of lead acid battery prevention of seepage |
| CN105546169A (en) * | 2016-01-11 | 2016-05-04 | 唐凯 | Waterproof air-permeable valve |
| CN105720222A (en) * | 2016-05-04 | 2016-06-29 | 惠州市沃瑞科技有限公司 | Pressure anti-explosion decompression balance valve utilizing small-sized battery pack |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112303308A (en) * | 2019-08-23 | 2021-02-02 | 宁德时代新能源科技股份有限公司 | Explosion-proof valve, battery package and electric automobile |
| EP3812632A4 (en) * | 2019-08-23 | 2021-12-08 | Contemporary Amperex Technology Co., Limited | Explosion-proof valve, battery pack and electric vehicle |
| WO2023077383A1 (en) * | 2021-11-04 | 2023-05-11 | 宁德时代新能源科技股份有限公司 | Box assembly of battery, battery, and method for manufacturing box assembly of battery |
| CN116066608A (en) * | 2022-03-09 | 2023-05-05 | 江苏拓米洛高端装备股份有限公司 | Pressure balance structure and environment test box |
| CN116066608B (en) * | 2022-03-09 | 2023-11-24 | 江苏拓米洛高端装备股份有限公司 | Pressure balance structure and environment test box |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170517 |
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| RJ01 | Rejection of invention patent application after publication |