CN208670172U - A kind of novel waterproof air previous explosion-proof valve - Google Patents
A kind of novel waterproof air previous explosion-proof valve Download PDFInfo
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- CN208670172U CN208670172U CN201821104841.7U CN201821104841U CN208670172U CN 208670172 U CN208670172 U CN 208670172U CN 201821104841 U CN201821104841 U CN 201821104841U CN 208670172 U CN208670172 U CN 208670172U
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Abstract
The utility model provides a kind of novel waterproof air previous explosion-proof valve, and product structure is simple, and the components for forming product are few, and processing cost is low, easily produces in batches；Waterproof ventilated membrane is respectively set with explosion-proof plug, and the design of Air permenbility under normal condition is not influenced by explosion-proof plug size, Air permenbility can scope of design it is big；When pressure reaches pre- pressure value in battery pack cabinet, explosion-proof plug pop-up, seal case is directly communicated with the outside world, and capacity is big, pressure release speed is fast, and arrangement property is high.And after explosion-proof plug pop-up, original position can be installed back again, therefore 100% can test in the fabrication process, it is ensured that explosion-proof pressure meets the requirements.
Description
Technical field
The utility model patent relates generally to explosion-proof valve technical field, more particularly, to a kind of novel waterproof air previous explosion-proof
Valve.
Background technique
Power battery pack is new-energy automobile " heart ", as the core component of New-energy electric vehicle, safety
And the operation is stable, reliability directly ring the vehicle performance and driving safety for arriving new energy electric motor vehicle.It is electric in battery pack in order to prevent
Pond group and control system performance are influenced by water, dust etc., and PACK power battery pack needs are sealed, but are being fully sealed
In the case where, power battery its internal battery core in charge and discharge and different operating condition operations can generate heat, cause power battery box
Internal gas expansion；When stopping working, temperature reduces and will cause battery loading pressure and becomes smaller, if gas can not be timely
Discharge is sucked with balance box external and internal pressure, and battery pack reliability will be severely impacted, in addition when battery core appearance is abnormal quick-fried
High temperature and pressure can be generated when broken, if can not quick pressure releasing, there are the risks of heavy explosion, it is therefore desirable to which explosion-proof valve (or is
Safety valve) it maintains cabinet internal and external pressure balance, prevent explosion or reduces the damage that explosion generates.
Explosion-proof valve currently used for seal case mainly uses following methods technology:
(1) explosion-proof when reaching certain pressure using the explosion rupture disk with impressed metal or plastics as explosion-proof component
Piece rupture carries out pressure release, but seal case is completely airtight under normal operating conditions, and external pressure in cabinet is caused after temperature change
Power is uneven, and then influences battery functional reliability and service life, and explosion rupture disk burst pressure is generally large, makes its explosion
When pressure limit it is larger, precision is poor, and there are still certain defects for the technical products.
(2) explosion-proof valve main body frame and protective cover use plastics or rubber elastomeric material, and a waterproof is arranged in framework
Ventilated membrane punctures the structure setting of film using cone bottom thimble, plays ventilative and explosion-proof effect, but its structure to a certain extent
Relative complex, explosion-proof is that the protrusion that deforms under pressure by ventilated membrane (air-permeable paper) by taper thimble punctures realization,
The accuracy rate of explosion is poor, and stability is bad, and detecting burst pressure is that (explosion is disposable, diaphragm quilt for destructive testing
Puncture rear damage of product and lose function), when processing procedure and shipment can not full inspection, therefore there are larger quality risks.
Waterproof ventilated membrane is installed in explosion-proof valve core, explosion-proof valve core is controlled using spring or elastic slice (metal dome) and is opened
It closes, the advantages which has explosion-proof pressure point precision high, 100% can examine, excellent in cushion effect, reliable in quality, but
It is that product structure is relatively complicated, higher cost.
Summary of the invention
To solve the above problems, the utility model provides a kind of novel waterproof air previous explosion-proof valve, structure is simple, Air permenbility
Greatly, easy to install and use, and waterproof ventilated membrane is respectively set with explosion-proof plug, and the Air permenbility under normal condition designs not by explosion-proof
Filling in size influences, while explosion-proof plug is recyclable.
One of to achieve the above object, the technical solution adopted in the utility model is to provide a kind of novel waterproof air previous explosion-proof
Valve, including valve body, waterproof ventilated membrane, the valve body are equipped with one or more explosion-proof relief holes, and each explosion-proof let out
Pressure is equipped with an explosion-proof plug in hole；The surface of the valve body is additionally provided with multiple first air holes, and the waterproof ventilated membrane
It is bonded on valve body and is covered on the surface of the first air hole.
Further, the outer circumference of the explosion-proof plug is equipped with several circular bars, and the circular bar and explosion-proof relief hole
Inner wall is adjacent to.
Further, the surface of the valve body is additionally provided with airtight detection aeration aperture, installation in the airtight detection aeration aperture
There is aeration aperture sealing-plug.
Further, the lower end of the explosion-proof plug is tubular structure, and the inside of explosion-proof plug lower end be equipped with equipped with cross or
The reinforcing rib of rice word X-shape.
It further, further include protective cover of the surface equipped with the second air hole, wherein the surface of the valve body is equipped with a circle
With the matched annular relief of protective cover shape size, and multiple first air holes are located in the space that annular relief surrounds,
Wherein protective cover is mounted on the outside of waterproof ventilated membrane, and protective cover and the side wall of annular relief are adjacent to；And the convex annular
The side wall in the portion of rising is equipped with one or more notch.
Further, the bottom of the valve body is equipped with a circle seal groove along the edge of valve body, inside seal groove
It is provided with sealing ring；The side of the valve body is equipped with detection fixture locating slot.
To achieve the above object two, the technical solution adopted in the utility model is to provide a kind of novel waterproof air previous explosion-proof
Valve, including valve body, waterproof ventilated membrane, diaphragm assemble ring；Wherein the valve body is equipped with one or more explosion-proof reliefs
Hole, and an explosion-proof plug is installed in each explosion-proof relief hole；The valve body is equipped with a ventilative groove, wherein the groove
Bottom be equipped with several first air holes, wherein diaphragm assembling ring is pressed together on the surface of waterproof ventilated membrane, and makes waterproof saturating
Air film is fitted in the surface of the first air hole.
Further, dowel is equipped in the explosion-proof relief hole, wherein centre bore is equipped at the center of the dowel, and
Dowel and the inner wall in explosion-proof relief hole surround several petal air holes；Wherein the outside week of the explosion-proof plug lower end is equipped with
Several circle circular bars, and the inner wall of explosion-proof plug lower end circular bar and centre bore is adjacent to, and the upper end sealing of the explosion-proof plug
It is covered on the top of several petal air holes.
The utility model has the beneficial effects that: product structure is simple, the components for forming product are few, and processing cost is low,
Easily batch production；Waterproof ventilated membrane is respectively set with explosion-proof plug, and the Air permenbility under normal condition designs not by explosion-proof plug size shadow
Ring, Air permenbility can scope of design it is big；When pressure reaches pre- pressure value in battery pack cabinet, explosion-proof plug pop-up, seal case
It directly communicates with the outside world, capacity is big, pressure release speed is fast, and arrangement property is high.And after explosion-proof plug pop-up, it can install back again in situ
It sets, therefore 100% can test in the fabrication process, it is ensured that explosion-proof pressure meets the requirements.
Detailed description of the invention
Fig. 1 is the assembling explosive view for specific embodiment one.
Fig. 2 is the product overall diagram of specific embodiment one.
Fig. 3 is valve body bottom view in specific embodiment one.
Fig. 4 is the explosion-proof plug schematic diagram of specific embodiment one.
Fig. 5 is the assembling explosive view of specific embodiment two.
Fig. 6 is two overall schematic of specific embodiment.
Fig. 7 is the explosion-proof plug schematic diagram of specific embodiment two.
Drawing reference numeral explanation: 1- valve body, 2- aeration aperture sealing-plug, 3- waterproof ventilated membrane, 4- protective cover, 5- explosion-proof plug,
61- nut, 62- threaded hole, 7- sealing ring, 8- diaphragm assembling ring, 9- explosion-proof relief hole, 120- annular relief, 121- notch,
The anti-water storage tank of 122-, the first air hole of 13-, the airtight detection aeration aperture of 14-, 15- detect fixture locating slot, and 16- is petal ventilative
Hole, 17- seal groove, the second air hole of 18-, 51- circular bar, 52- reinforcing rib.
Specific embodiment
The utility model is described in detail with Figure of description combined with specific embodiments below.
Specific embodiment one: please referring to shown in Fig. 1-4, and the utility model is about a kind of novel waterproof air previous explosion-proof valve, packet
Valve body 1, waterproof ventilated membrane 3, protective cover 4 are included, the right and left is respectively provided with 1 explosion-proof relief hole 9 on the valve body 1, and every
One explosion-proof plug 5 is installed in a explosion-proof relief hole 9；The surface of the valve body 1 is additionally provided with multiple first air holes 13, wherein
Waterproof ventilated membrane 3 is combined as a whole by the method and valve body 1 of sweat soldering or ultrasonic bonding and is covered on first thoroughly
The surface of stomata 13.And 6 nuts 61 are embedded on valve body 1, for being installed when explosion-proof valve use.
Wherein the explosion-proof plug 5 is a kind of glue rubber part, wherein top is arc-shaped, material is silicon rubber, ethylene-propylene-diene monomer
One of glue, butyronitrile or hydrogenated nitrile-butadiene rubber, TPV.
The waterproof ventilated membrane 3 is sintering PTFE microporous barrier or EPTFE or PET nonwoven fabric composite micro porous film, protection
Grade is IP66~IP68, Air permenbility >=500ml/cm2@7KPa.
It please refers to shown in Fig. 4, wherein the explosion-proof bleeder port on valve body 1, explosion-proof plug 5 are plugged into tight fit,
It is wherein tubular structure in 5 end portion of explosion-proof plug (the explosion-proof discouraged bore portion of insertion), several circular bars is equipped on excircle
51, by adjusting the adjustable tightness degree with the cooperation of explosion-proof bleeder port of width, diameter and quantity of circular bar 51, i.e., thus
It can adjust different explosion-proof pressure and waterproofing grade.
In order to guarantee the stability and reliability of explosion-proof pressure, it is equipped with cross inside 5 lower end of explosion-proof plug or rice word intersects
Shape reinforcing rib 52 is used to support excircle and circular bar 51.
Please referring to further includes protective cover 4 of the surface equipped with the second air hole 18 shown in Fig. 1-2, wherein the valve body 1
Surface is equipped with a circle and the matched annular relief 120 of 4 shape size of protective cover, and multiple first air holes 13 are located at convex annular
It rises in the space that portion 120 surrounds, wherein the lid of protective cover 4 closes on the surface of waterproof ventilated membrane 3, and protective cover 4 and annular relief
120 side wall is adjacent to；Wherein the side wall of the annular relief 120 is equipped with one or more notch 121.In order to prevent
External foreign matter damage waterproof ventilated membrane 3 causes water-proof function to fail, and is equipped with protective cover 4 on the surface of waterproof ventilated membrane 3, and anti-
Protecting cover 4 is equipped with the second air hole 18.In addition, in order to prevent in the surface area water of waterproof ventilated membrane 3 in annular relief 120
Side wall is equipped with one or more notch 121, and when rain enters inside by the second air hole 18, water can lead to
The notch 121 for crossing anti-ponding quickly flows out, while can also play the role of anti-dust accumulation.
When pressure is less than set explosion-proof pressure value in cabinet, and there are when pressure difference inside and outside cabinet, gas passes through the
One air hole 13, waterproof ventilated membrane 3 and the second air hole 18 reach pressure weighing apparatus with the extraneous gas exchanges that carry out.
When pressure is rapidly increased beyond set explosion-proof pressure value in cabinet, under pressure, explosion-proof plug 5 is popped up,
In cabinet gas by explosion-proof relief hole 9 and it is extraneous straight-through carry out fast exhaust pressure relief, and then reach explosion-proof purpose, and it is existing explosion-proof
The advantages that valve technology/product structure compared is simple, and pressure release speed is fast, highly-safe.
It please refers to shown in Fig. 3, the bottom of valve body 1 is equipped with seal groove 17 along the periphery of valve body 1, in seal groove 17
Portion is provided with sealing ring 7, is used for the sealing of explosion-proof valve and seal case when in use.While for the ease of being detected when airtight detection
Fixture positioning, detection fixture locating slot 15 is equipped on the opposite two sides of valve body 1.
The air-tightness shown in Fig. 2-3 for the ease of detection box is please referred to, airtight detection aeration aperture is equipped on valve body 1
14, and aeration aperture sealing-plug 2 is installed in airtight detection aeration aperture 14.
Aeration aperture sealing-plug 2 is removed in inflation, is inserted in U-shaped air tightness detecting clamp in detection fixture locating slot 15, it will
Gas-charging connection on air tightness detecting clamp is directed at airtight detection aeration aperture 14, and the gas of detection box can be quickly inflated into cabinet
Close property.Sealing can be completed in the loading of aeration aperture sealing-plug 2 after the completion of airtight detection.By prior art products from waterproof ventilated membrane
Inflation improves row and inflates from dedicated aeration aperture at 3, solves the problems, such as ventilated membrane easy to damage when inflation, and have aeration speed
Fastly, the high advantage of client's Use Limitation rate.
Please refer to specific embodiment two shown in Fig. 5-7: a kind of novel waterproof air previous explosion-proof valve, including valve body 1, waterproof are saturating
Air film 3, explosion-proof plug 5, diaphragm assemble ring 8；Wherein the valve body 1 is equipped with one explosion-proof relief hole 9, and explosion-proof relief hole
One explosion-proof plug 5 is installed in 9；The valve body 1 is equipped with a ventilative groove, wherein the bottom of the groove is equipped with several
First air hole 13, wherein diaphragm assembling ring 8 is pressed together on the surface of waterproof ventilated membrane 3, and to be fitted in waterproof ventilated membrane 3
The surface of first air hole 13.
It please refers to shown in Fig. 7, dowel is equipped in the explosion-proof relief hole 9, wherein being equipped at the center of the dowel
The inner wall in centre bore, dowel and explosion-proof relief hole 9 surrounds 4 petal air holes 16；Wherein 5 lower end of explosion-proof plug is outer
Side week is equipped with several circle circular bars 51, and the circular bar 51 and the inner wall of centre bore are adjacent to, and the upper end sealing cover of explosion-proof plug 5
It closes in the top of 4 petal air holes 16.And valve body 1 is equipped with 4 threaded holes 62, facilitates subsequent installation.
Please referring to further includes protective cover 4 of the surface equipped with the second air hole 18 shown in Fig. 5-6, and wherein the lid of protective cover 4, which closes, exists
The opening of ventilative groove, while anti-water storage tank 122 is connected to ventilative groove equipped with multiple on the surface of valve body 1.In order to pre-
Anti- external foreign matter damage waterproof ventilated membrane 3 causes water-proof function to fail, on the surface of waterproof ventilated membrane 3 equipped with protective cover 4, and
Protective cover 4 is equipped with the second air hole 18.In addition to preventing in the surface area water of waterproof ventilated membrane 3 on the surface of valve body 1
Anti- water storage tank 122 is connected to ventilative groove equipped with multiple, when rain enters inside by the second air hole 18, water can be with
By the anti-quickly outflow of water storage tank 122, while anti-dust accumulation can also be played the role of.
In specific embodiment two, it equally is equipped with seal groove 17 along the periphery of valve body 1 in the bottom of valve body 1, it is close
Seal slot 17 is internally provided with sealing ring 7, is used for the sealing of explosion-proof valve and seal case when in use.Simultaneously for the ease of airtight
Fixture positioning is detected when detection, and detection fixture locating slot 15 is equipped on the opposite two sides of valve body 1.
For the ease of the air-tightness of detection box, airtight detection aeration aperture 14 is equipped on valve body 1, and in airtight detection
Aeration aperture sealing-plug 2 is installed in aeration aperture 14.And the explosion-proof plug used in specific embodiment two with ventilated membrane with specific
It is same material used by embodiment one.
In conclusion this product structure is simple, the components for forming product are few, and processing cost is low, easily produce in batches；Waterproof
Ventilated membrane 3 is respectively set with explosion-proof plug 5, and the Air permenbility design under normal condition is not influenced by 5 size of explosion-proof plug, and Air permenbility can be set
It is big to count range；When pressure reaches pre- pressure value in battery pack cabinet, explosion-proof plug 5 pop up, seal case directly with extraneous phase
Logical, capacity is big, pressure release speed is fast, and arrangement property is high.And after explosion-proof plug 5 pops up, original position can be installed back again, therefore making
It 100% can test during making, it is ensured that explosion-proof pressure meets the requirements.
Embodiment of above is only that preferred embodiments of the present invention are described, not to the utility model
Range be defined, under the premise of not departing from the spirit of the design of the utility model, this field ordinary engineering and technical personnel to this
The various changes and improvements that the technical solution of utility model is made should all fall into the guarantor that claims of the utility model determine
It protects in range.
Claims (8)
1. a kind of novel waterproof air previous explosion-proof valve, it is characterised in that: including valve body, waterproof ventilated membrane, set on the valve body
There is one or more explosion-proof relief holes, and an explosion-proof plug is installed in each explosion-proof relief hole；The surface of the valve body
Multiple first air holes are additionally provided with, and the waterproof ventilated membrane is bonded on valve body and is covered on the surface of the first air hole.
2. a kind of novel waterproof air previous explosion-proof valve according to claim 1, it is characterised in that: the outside circle of the explosion-proof plug
Week is equipped with several circular bars, and the circular bar and the inner wall in explosion-proof relief hole are adjacent to.
3. a kind of novel waterproof air previous explosion-proof valve according to claim 1, it is characterised in that: the surface of the valve body is also
Equipped with airtight detection aeration aperture, aeration aperture sealing-plug is installed in the airtight detection aeration aperture.
4. a kind of novel waterproof air previous explosion-proof valve according to claim 1, it is characterised in that: the lower end of the explosion-proof plug is
Tubular structure, and the inside of explosion-proof plug lower end is equipped with the reinforcing rib equipped with cross or rice word X-shape.
5. a kind of novel waterproof air previous explosion-proof valve according to claim 1, it is characterised in that: further include that surface is equipped with second
The protective cover of air hole, wherein the surface of the valve body is equipped with a circle and the matched annular relief of protective cover shape size,
And multiple first air holes are located in the space that annular relief surrounds, wherein protective cover is mounted on the outside of waterproof ventilated membrane,
And protective cover and the side wall of annular relief are adjacent to；And the side wall of the annular relief is equipped with one or more lack
Mouthful.
6. a kind of novel waterproof air previous explosion-proof valve according to claim 1, it is characterised in that: the bottom edge of the valve body
The edge of valve body is equipped with a circle seal groove, and seal groove is internally provided with sealing ring；Side is equipped in the valve body
Detect fixture locating slot.
7. a kind of novel waterproof air previous explosion-proof valve, it is characterised in that: assemble ring including valve body, waterproof ventilated membrane, diaphragm；Wherein
The valve body is equipped with one or more explosion-proof relief holes, and an explosion-proof plug is equipped in each explosion-proof relief hole；Institute
Valve body is stated equipped with a ventilative groove, wherein the bottom of the groove is equipped with several first air holes, wherein diaphragm is assembled
Ring is pressed together on the surface of waterproof ventilated membrane, and waterproof ventilated membrane is made to be fitted in the surface of the first air hole.
8. a kind of novel waterproof air previous explosion-proof valve according to claim 7, it is characterised in that: set in the explosion-proof relief hole
Have dowel, wherein at the center of the dowel be equipped with centre bore, and dowel and the inner wall in explosion-proof relief hole surround it is several
A petal air hole；Wherein it is equipped with several circular bars, and the explosion-proof plug lower end annular outside week of the explosion-proof plug lower end
The inner wall of muscle and centre bore is adjacent to, and the upper end sealing of the explosion-proof plug is covered on the top of several petal air holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821104841.7U CN208670172U (en) | 2018-07-12 | 2018-07-12 | A kind of novel waterproof air previous explosion-proof valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821104841.7U CN208670172U (en) | 2018-07-12 | 2018-07-12 | A kind of novel waterproof air previous explosion-proof valve |
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| Publication Number | Publication Date |
|---|---|
| CN208670172U true CN208670172U (en) | 2019-03-29 |
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ID=65826871
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821104841.7U Active CN208670172U (en) | 2018-07-12 | 2018-07-12 | A kind of novel waterproof air previous explosion-proof valve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108758031A (en) * | 2018-07-12 | 2018-11-06 | 东莞蒲微防水透气膜材料有限公司 | A kind of novel waterproof air previous explosion-proof valve |
-
2018
- 2018-07-12 CN CN201821104841.7U patent/CN208670172U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108758031A (en) * | 2018-07-12 | 2018-11-06 | 东莞蒲微防水透气膜材料有限公司 | A kind of novel waterproof air previous explosion-proof valve |
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