CN110137413A - Breather valve and battery case - Google Patents
Breather valve and battery case Download PDFInfo
- Publication number
- CN110137413A CN110137413A CN201910547126.3A CN201910547126A CN110137413A CN 110137413 A CN110137413 A CN 110137413A CN 201910547126 A CN201910547126 A CN 201910547126A CN 110137413 A CN110137413 A CN 110137413A
- Authority
- CN
- China
- Prior art keywords
- film hinge
- isolation film
- hole
- breather valve
- isolation
- 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
- 238000002955 isolation Methods 0.000 claims abstract description 193
- 239000012528 membrane Substances 0.000 claims abstract description 22
- 230000035945 sensitivity Effects 0.000 abstract description 7
- 230000001105 regulatory effect Effects 0.000 description 6
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- -1 polytetrafluoroethylene Polymers 0.000 description 2
- 206010046996 Varicose vein Diseases 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/317—Re-sealable arrangements
- H01M50/325—Re-sealable arrangements comprising deformable valve members, e.g. elastic or flexible valve members
- H01M50/333—Spring-loaded vent valves
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/394—Gas-pervious parts or elements
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Gas Exhaust Devices For Batteries (AREA)
Abstract
The present invention provides a kind of breather valve and battery cases, including valve body and isolation membrane module, and the two sides of valve body are respectively formed with first through hole and the second through-hole；It includes the first isolation film hinge, the second isolation film hinge and elastic component that membrane module, which is isolated, first isolation film hinge and the second isolation film hinge are hinged and first through hole and the second through-hole are isolated, and elastic component is fixedly connected with the first isolation film hinge and the second isolation film hinge respectively and limits the rotation of the first isolation film hinge and the second isolation film hinge.Breather valve and battery case provided by the invention, it can be plugged between first through hole and the second through-hole after first isolation film hinge and the splicing of the second isolation film hinge, and it can rotate, air duct can be formed and realize operation of losing heart, stop operation of losing heart by the resilience of elastic component, adapter is not needed, so that the sensitivity of control is higher, discouraged phenomenon can not timely be opened by avoiding breather valve.
Description
Technical field
The present invention relates to the technical fields of power battery or energy-storage battery, and in particular to a kind of breather valve and battery case.
Background technique
In face of the increasingly strict exhaust emission standard of Now Domestic or even the whole world and the energy crisis in future, major automobile factory
Commercial city is in the new energy technology of research and development low emission, and to adapt to this development trend, wherein pure electric automobile is that each cart is looked forward at present
One of field researched and developed energetically, power battery are one of core energy storage devices of electric car.When using power battery, in order to
Guarantee that the air pressure in battery case in the range of safety, needs to install the gas that breather valve comes in regulating cell case on battery case
Pressure, i.e., when the air pressure in battery case is more than scheduled vent pressure value, breather valve is acted and gas is discharged in time, from
And it prevents from exploding.
Application No. is disclose a kind of breather valve in the Chinese patent application of CN201620707574.7 comprising shell is opened
Equipped with the first through hole being connected and the second through-hole；Isolation film is set between the first through hole and second through-hole, and
The first through hole and second through-hole is isolated；Piston is contained in the first through hole, the piston include head and with
The connected tail portion in the head, the head of the piston is against the isolation film；Spring is contained in the first through hole and covers
On the tail portion of the piston, one end of the spring is resisted against the head of the piston；And it adjusts bolt and is resisted against institute
The other end of spring is stated, the adjusting bolt is contained in the first through hole, and is flexibly connected with the shell.It passes through swollen
Isolation film made of body polytetrafluoroethylene (PTFE) adjusts the pressure difference in first through hole and the second through-hole, when air pressure raising reaches in first through hole
To when being higher than air pressure certain value in the second through-hole, piston is mobile and one channel ventilated completely of opening is largely directly vented, with
The air pressure in first through hole is reduced, to guarantee air pressure in a safe range, spring uses pressure spring, sensitivity consistency at this time
And it is bad, will lead to breather valve can not timely open it is discouraged, so as to cause battery carton deformed or more dangerous situation.
Summary of the invention
The purpose of the present invention is to provide a kind of breather valve and battery cases, use pressure to solve spring in the prior art
Spring, sensitivity consistency is bad, and to cause breather valve that can not timely open discouraged, and the technology so as to cause battery carton deformed is asked
Topic.
To achieve the above object, the technical solution adopted by the present invention is that: a kind of breather valve is provided, comprising: valve body and every
From membrane module, the two sides of the valve body are respectively formed with first through hole and the second through-hole, and the first through hole is logical with described second
Hole is connected；The isolation membrane module includes the first isolation film hinge, the second isolation film hinge and elastic component, first isolation
Film hinge and the second isolation film hinge are hinged and the first through hole and second through-hole, the elastic component point are isolated
Be not fixedly connected and limit with the first isolation film hinge and the second isolation film hinge the first isolation film hinge and
The rotation of the second isolation film hinge.
Further, the angle between the first isolation film hinge and the second isolation film hinge is less than 180 degree.
Further, the isolation membrane module further includes pin, and the first isolation film hinge is equipped with the first fixation hole,
The second isolation film hinge is equipped with the second fixation hole, and the pin is each passed through first fixation hole and second and fixes
Hole, the both ends of the pin are fixedly connected with the inner wall of second through-hole respectively.
Further, the elastic component uses torsional spring, and the torsional spring has torsional part and set on the torsional part both ends
Fixing end, and the torsional part is socketed on the pin, two fixing ends respectively with the first isolation film hinge and
The second isolation film hinge is fixedly connected.
Further, the torsional spring is fixed on the first isolation film hinge or the second isolation film hinge far from described
The side of first through hole.
Further, the first isolation film hinge and the second isolation film hinge are close to the side of the first through hole
It is equipped with gasket, and the gasket can be in contact with the inner sidewall of second through-hole.
Further, the side wall of second through-hole is additionally provided with bleeder port, and it is logical that the isolation membrane module is located at described first
Between hole and the bleeder port.
Further, the inside of second through-hole is equipped with positive stop lug boss close to the side of the first through hole, and described the
One isolation film hinge and the second isolation film hinge can be abutted against with the positive stop lug boss.
Further, second through-hole is equipped with rear cover, the rear cover and described the far from the side of the first through hole
Two through-holes are threadedly coupled.
The invention also discloses a kind of battery cases, including the breather valve in such as above-mentioned any embodiment.
The beneficial effect of breather valve and battery case provided by the invention is: compared with prior art, present invention breathing
Valve and battery case are separated first through hole and the second through-hole using isolation membrane module, wherein first through hole and the second through-hole point
It is not connected with the inside and outside of battery case, the can be plugged in after the first isolation film hinge and the splicing of the second isolation film hinge
Between one through-hole and the second through-hole, and the first isolation film hinge and the second isolation film hinge are hinged, when the gas into battery case
When pressure is higher than external pressure certain value, the first isolation film hinge and/or the second isolation film hinge can be rotated, it can be formed
Operation of losing heart is realized in air duct, is abutted, be may be implemented with the first isolation film hinge and the second isolation film hinge respectively by elastic component
Rotation control to the first isolation film hinge and the second isolation film hinge, and there is certain resilience, it can be by this
In elastic component regulating cell case in air pressure and atmosphere air pressure pressure difference, and the first isolation film hinge and the second isolation film is driven to close
The closing of page is connect using elastic component and is connected with the first isolation film hinge and the second isolation film hinge to stop operation of losing heart
Mode, do not need adapter so that control sensitivity it is higher, avoid breather valve can not timely open it is discouraged, from
And the technical issues of leading to battery carton deformed.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the schematic perspective view of breather valve provided in an embodiment of the present invention；
Fig. 2 is the configuration schematic diagram of breather valve provided in an embodiment of the present invention；
Fig. 3 is the overlooking structure diagram of breather valve shown in FIG. 1；
Fig. 4 is the sectional structure chart of the line A-A along Fig. 3.
Description of symbols:
1, valve body；2, membrane module is isolated；3, rear cover；4, sealing ring；11, first through hole；12, the second through-hole；121, lose heart
Hole；122, positive stop lug boss；21, the first isolation film hinge；22, the second isolation film hinge；23, elastic component；24, pin；25, it seals
Pad；211, the first fixation hole；221, the second fixation hole.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
As long as in addition, the non-structure each other of technical characteristic involved in invention described below different embodiments
It can be combined with each other at conflict.
Also referring to Fig. 1 to Fig. 4, now breather valve provided by the invention is illustrated.The breather valve, 1 He of valve body
Membrane module 2 is isolated, the two sides of the valve body 1 are respectively formed with first through hole 11 and the second through-hole 12, the first through hole 11 with
Second through-hole 12 is connected；The isolation membrane module 2 includes the first isolation film hinge 21, the second isolation film hinge 22 and bullet
Property part 23, the first isolation film hinge 21 and the second isolation film hinge 22 are hinged and 11 He of first through hole are isolated
Second through-hole 12, the elastic component 23 are solid with the first isolation film hinge 21 and the second isolation film hinge 22 respectively
Connect and limit calmly the rotation of the first isolation film hinge 21 and the second isolation film hinge 22.
Breather valve provided by the invention is compared with prior art led to first through hole 11 and second using isolation membrane module 2
Hole 12 separates, and wherein first through hole 11 and the second through-hole 12 are connected with the inside and outside of battery case respectively, the first isolation film
Hinge 21 and the second isolation film hinge 22 splicing after can be plugged between first through hole 11 and the second through-hole 12, and first every
It is hinged from film hinge 21 and the second isolation film hinge 22, when into battery case, air pressure is higher than external pressure certain value, the
One isolation film hinge 21 and/or the second isolation film hinge 22 can rotate, it can form air duct and realize operation of losing heart, pass through bullet
Property part 23 abutted respectively with the first isolation film hinge 21 and the second isolation film hinge 22, may be implemented to the first isolation film hinge 21
Rotation with the second isolation film hinge 22 controls, and has certain resilience, can adjust electricity by the elastic component 23
In the case of pond in air pressure and atmosphere air pressure pressure difference, and drive the envelope of the first isolation film hinge 21 and the second isolation film hinge 22
It closes, to stop operation of losing heart, is connect using elastic component 23 and be connected with the first isolation film hinge 21 and the second isolation film hinge 22
Mode, do not need adapter so that control sensitivity it is higher, avoid breather valve can not timely open it is discouraged, from
And the technical issues of leading to battery carton deformed.
Specifically, the shape of the first isolation film hinge 21 and the second isolation film hinge 22 is generally semicircle, by first
Isolation film hinge 21 and the splicing of the second isolation film hinge 22 can both form complete circle, so that first through hole 11 and second be led to
Hole 12 is isolated.Expanded PTFE is all covered on the first isolation film hinge 21 and the second isolation film hinge 22
Film, in the state that breather valve is normal, by the pressure difference inside and outside eptfe membrane regulating cell case, wherein first is logical
Hole 11 and the second through-hole 12 are connected with the inside and outside of battery case respectively, it is therefore preferable to first through hole 11 and battery case it is interior
Portion is connected, and the second through-hole 12 is connected with outside atmosphere.Certainly, according to the actual situation and specific requirements, in its of the invention
In his embodiment, first through hole 11 can also directly be connected with outside atmosphere, and the second through-hole 12 is connected with the inside of battery case
It is logical, it does not limit uniquely herein.
Further, referring to Figure 2 together to Fig. 4, as a kind of specific embodiment of breather valve provided by the invention,
Angle between the first isolation film hinge 21 and the second isolation film hinge 22 is less than 180 degree.Specifically, the first isolation
Certain angle, i.e. the first isolation film hinge 21 and are formed between film hinge 21 and the second isolation film hinge 22 and valve body 1
It is obliquely installed between two isolation film hinges 22 and the inner wall of the second through-hole 12, the first isolation film hinge 21 and can be increased at this time
The contact area of air, increases the first isolation film under normal condition in two isolation film hinges 22 and outside air and battery case
Ventilation volume inside and outside 22 communicating battery case of hinge 21 and the second isolation film hinge, and by the first isolation film hinge 21 and second every
Anticyclonic sensitivity can also be proposed to a certain extent by being obliquely installed from film hinge 22.Certainly, it needs according to the actual situation and specifically
It asks, in other embodiments of the invention, the first isolation film hinge 21 and the second isolation film hinge 22 can also vertically be set completely
It sets, i.e., angle is 180 degree, is not limited uniquely herein.
Further, referring to Figure 2 together to Fig. 4, as a kind of specific embodiment of breather valve provided by the invention,
The isolation membrane module 2 further includes pin 24, the first isolation film hinge 21 be equipped with the first fixation hole 211, described second
Isolation film hinge 22 is equipped with the second fixation hole 221, and it is fixed that the pin 24 is each passed through first fixation hole 211 and second
Hole 221, the both ends of the pin 24 are fixedly connected with the inner wall of second through-hole 12 respectively.Specifically, isolation membrane module 2 is logical
The inside that pin 24 is fixed on the second through-hole 12 is crossed, and the first isolation film hinge 21 and the second isolation film hinge 22 can phases
Second through-hole 12 is realized and is rotated, i.e., can be formed in the top of the first isolation film hinge 21 and the second isolation film hinge 22
For discouraged channel, so that the gas inside battery case can pass through two bleed passages of two sides simultaneously, may be implemented
Quickly lose heart and operates.It certainly, according to the actual situation and specific requirements, in other embodiments of the invention, can also be the
One isolation film hinge 21 is fixedly connected with the second isolation film hinge 22, and the first isolation film hinge 21 or the second isolation film hinge 22
One end be hinged with 12 inner sidewall of the second through-hole, i.e., one in the first isolation film hinge 21 and the second isolation film hinge 22 can
With rotation, to form one for discouraged channel, do not limit uniquely herein.
Further, please see Fig. 2 to Fig. 4, described as a kind of specific embodiment of breather valve provided by the invention
Elastic component 23 uses torsional spring, and the torsional spring has torsional part and the fixing end set on the torsional part both ends, and the torsional part
It is socketed on the pin 24, two fixing ends are closed with the first isolation film hinge 21 and second isolation film respectively
Page 22 is fixedly connected.Specifically, the both ends of torsional spring are connected with the first isolation film hinge 21 and the second isolation film hinge 22 respectively,
To control the rotational angle between the first isolation film hinge 21 and the second isolation film hinge 22 by torsional spring, the first isolation is avoided
Rotational angle between film hinge 21 and the second isolation film hinge 22 is excessive, can also be acted on by the return of torsional spring and drive first
The return of isolation film hinge 21 and the second isolation film hinge 22.Certainly, according to the actual situation and specific requirements, in its of the invention
In his embodiment, the first isolation film hinge 21 and the can also be may be implemented in elastic component 23 using extension spring or air spring etc.
The elastic component 23 with return effect is stretched between two isolation film hinges 22, is not limited uniquely herein.
Wherein, pass through the varicosity on the first isolation film hinge 21 and the second isolation film hinge 22 under normal condition
The pressure difference of polytetrafluoroethylene film regulating cell case；It is described when air pressure increases and is higher than external pressure certain value in battery case
First isolation film hinge 21 and the second isolation film hinge 22 will overcome the elastic force of torsional spring to revolve by fulcrum around pin 24
Turn certain angle, separately open the channel that two are ventilated completely and be largely directly vented, to reduce the pressure difference inside and outside battery case, guarantees battery
Air pressure is in the range of a safety in case, and after having let out gas, the first isolation film hinge 21 and second isolation film are closed
The homing under the elastic force of torsional spring of page 22, continues through the first isolation film hinge 21 and the second isolation film hinge 22
On eptfe membrane regulating cell case inside and outside pressure difference.
Further, refering to Fig. 2 to Fig. 4, as a kind of specific embodiment of breather valve provided by the invention, the torsion
Spring is fixed on 21 or described second side of the isolation film hinge 22 far from the first through hole 11 of the first isolation film hinge.Tool
Body, torsional spring is arranged in the inside of the first isolation film hinge 21 and the second isolation film hinge 22, in first through hole 11 and battery case
The pressure communication in portion can be by the first isolation film hinge 21 and the second isolation film when the air pressure inside battery case is larger at this time
Hinge 22 pushes, to realize discouraged operation.Certainly, according to the actual situation and specific requirements, in other implementations of the invention
In example, the outside of the first isolation film hinge 21 and the second isolation film hinge 22 can also be arranged in elastic component 23, use rubber at this time
Adhesive tape or tension spring etc. can realize the elastic component 23 of stretching on the outside, not limit uniquely herein.
Further, please see Fig. 2 to Fig. 4, described as a kind of specific embodiment of breather valve provided by the invention
First isolation film hinge 21 and the second isolation film hinge 22 are equipped with gasket 25 close to the side of the first through hole 11,
And the gasket 25 can be in contact with the inner sidewall of second through-hole 12.Specifically, gasket 25 is logical for realizing first
Leakproofness between hole 11 and the second through-hole 12, so that the air in battery case can only be isolated with extraneous air by first
Film hinge 21 is connected with the eptfe membrane on the second isolation film hinge 22.First isolation film hinge 21 and second every
Shape from film hinge 22 is generally semicircle, and the shape of gasket 25 is also D-ring, so that gasket 25 can be located at ring
The outside of first isolation film hinge 21 and the second isolation film hinge 22, and can be with the first isolation film hinge 21 and the second isolation
The movement of film hinge 22 and move.
Further, Fig. 1 and Fig. 4 is please referred to, it is described as a kind of specific embodiment of breather valve provided by the invention
The side wall of second through-hole 12 is additionally provided with bleeder port 121, and the isolation membrane module 2 is located at the first through hole 11 and the bleeder port
Between 121.Specifically, first through hole 11 is connected with the inside of battery case, the second through-hole 12 is connected with outside atmosphere, loses heart
Hole 121 is arranged inside the second through-hole 12, and the gas that first through hole 11 can be allowed to be discharged is expelled to through the second through-hole 12
In atmosphere, to realize discouraged operation.Certainly, according to the actual situation and specific requirements, in other embodiments of the invention,
Second through-hole 12 can also directly be conducted with outside atmosphere, that is, be not provided with bleeder port 121, do not limit uniquely herein.
Preferably, the quantity of bleeder port 121 is multiple, and is uniformly located on the outside of the second through-hole 12, at this time can be with
The discouraged speed for guaranteeing entire breather valve, avoids the gas expansion inside battery case too fast, and breather valve can not be kept up in battery case
Gas expansion speed, thus the case where causing battery case to damage.
Further, logical as a kind of specific embodiment of breather valve provided by the invention, described second refering to Fig. 4
The inside in hole 12 is equipped with positive stop lug boss 122, the first isolation film hinge 21 and described close to the side of the first through hole 11
Second isolation film hinge 22 can be abutted against with the positive stop lug boss 122.Specifically, the setting of positive stop lug boss 122 is logical second
The inside in hole 12, and positive stop lug boss 122 is logical towards first for limiting the first isolation film hinge 21 and the second isolation film hinge 22
The direction in hole 11 is expanded, and is defined to the position of the first isolation film hinge 21 and the second isolation film hinge 22, and can be with
It is abutted against with gasket 25, to realize better seal effect.Wherein, positive stop lug boss 122 is generally the annulus setting protruded
In the inside of the second through-hole 12, and positive stop lug boss 122 above the first isolation film hinge 21 and the second isolation film hinge 22 can
Mobile region.
Further, described referring to FIG. 1 to FIG. 4, as a kind of specific embodiment of breather valve provided by the invention
Second through-hole 12 is equipped with rear cover 3 far from the side of the first through hole 11, and the rear cover 3 connects with 12 screw thread of the second through-hole
It connects.Specifically, rear cover 3 is used to that the second through-hole 12 to be sealed and be blocked, and rear cover 3 and the second through-hole 12 are threadedly coupled, i.e.,
The volume of the cavity formed between rear cover 3 and the second through-hole 12 can be adjusted, so that vent pressure be adjusted.
Further, referring to Fig. 4, a kind of specific embodiment as breather valve provided by the invention, described first
The diameter of through-hole 11 is less than the diameter of second through-hole 12, and the lateral wall of the first through hole 11 is close to second through-hole
12 side is arranged with sealing ring 4.Specifically, that there are sizes between first through hole 11 and the second through-hole 12 is poor, pass through the size
The adjustable required pressure difference of losing heart of difference.The outside of first through hole 11 is arranged in sealing ring 4, and the outside of first through hole 11 can
To be matched with the nut on battery case, can exist between battery case during installation to avoid breather valve by the sealing ring 4
The phenomenon that gas leakage, ensure that the airtightness of battery case.
Referring to FIG. 1 to FIG. 4, the present invention also provides a kind of battery case, the battery case includes such as above-mentioned any embodiment
In breather valve.
Battery case provided by the invention is separated first through hole 11 and the second through-hole 12 using isolation membrane module 2, wherein the
One through-hole 11 and the second through-hole 12 are connected with the inside and outside of battery case respectively, the first isolation film hinge 21 and the second isolation
Film hinge 22 can be plugged between first through hole 11 and the second through-hole 12 after splicing, and the first isolation film hinge 21 and second
Isolation film hinge 22 is hinged, when into battery case, air pressure is higher than external pressure certain value, the first isolation film hinge 21 and/
Or second isolation film hinge 22 can rotate, it can form air duct and realize operation of losing heart, by elastic component 23 respectively with first
Isolation film hinge 21 and the second isolation film hinge 22 abut, and may be implemented to the first isolation film hinge 21 and the second isolation film hinge
22 rotation control, and there is certain resilience, air pressure and atmosphere in the 23 regulating cell case of elastic component can be passed through
The pressure difference of middle air pressure, and the closing of the first isolation film hinge 21 and the second isolation film hinge 22 is driven, to stop the behaviour that loses heart
Make, in such a way that elastic component 23 connects and is connected with the first isolation film hinge 21 and the second isolation film hinge 22, does not need to transfer
Part so that control sensitivity it is higher, avoid breather valve can not timely open it is discouraged, so as to cause battery carton deformed
Technical problem.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (10)
1. breather valve, it is characterised in that: including
Valve body (1), the two sides of the valve body (1) are respectively formed with first through hole (11) and the second through-hole (12), and described first is logical
Hole (11) is connected with second through-hole (12)；And
It is isolated membrane module (2), the isolation membrane module (2) includes the first isolation film hinge (21), the second isolation film hinge (22)
With elastic component (23), the first isolation film hinge (21) and the second isolation film hinge (22) are hinged and are isolated described
One through-hole (11) and second through-hole (12), the elastic component (23) respectively with the first isolation film hinge (21) and described
Second isolation film hinge (22) is fixedly connected and limits the first isolation film hinge (21) and the second isolation film hinge
(22) rotation.
2. breather valve as described in claim 1, it is characterised in that: the first isolation film hinge (21) and second isolation
Angle between film hinge (22) is less than 180 degree.
3. breather valve as described in claim 1, it is characterised in that: the isolation membrane module (2) further includes pin (24), described
First isolation film hinge (21) is equipped with the first fixation hole (211), and it is fixed that the second isolation film hinge (22) is equipped with second
Hole (221), the pin (24) are each passed through first fixation hole (211) and the second fixation hole (221), the pin (24)
Both ends be fixedly connected respectively with the inner wall of second through-hole (12).
4. breather valve as claimed in claim 3, it is characterised in that: the elastic component (23) uses torsional spring, and the torsional spring has
Torsional part and fixing end set on the torsional part both ends, and the torsional part is socketed on the pin (24), described in two
Fixing end is fixedly connected with the first isolation film hinge (21) and the second isolation film hinge (22) respectively.
5. breather valve as claimed in claim 4, it is characterised in that: the torsional spring is fixed on the first isolation film hinge (21)
Or side of the second isolation film hinge (22) far from the first through hole (11).
6. such as breather valve described in any one of claim 1 to 5, it is characterised in that: the first isolation film hinge (21) and institute
It states the second isolation film hinge (22) to be equipped with gasket (25) close to the side of the first through hole (11), and the gasket
(25) it can be in contact with the inner sidewall of second through-hole (12).
7. such as breather valve described in any one of claim 1 to 5, it is characterised in that: the side wall of second through-hole (12) is also set
Have bleeder port (121), the isolation membrane module (2) is between the first through hole (11) and the bleeder port (121).
8. such as breather valve described in any one of claim 1 to 5, it is characterised in that: the inside of second through-hole (12) is close
The side of the first through hole (11) is equipped with positive stop lug boss (122), the first isolation film hinge (21) and second isolation
Film hinge (22) can be abutted against with the positive stop lug boss (122).
9. such as breather valve described in any one of claim 1 to 5, it is characterised in that: second through-hole (12) is far from described the
The side of one through-hole (11) is equipped with rear cover (3), and the rear cover (3) is threadedly coupled with second through-hole (12).
10. battery case, it is characterised in that: including breather valve as described in any one of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910547126.3A CN110137413A (en) | 2019-06-24 | 2019-06-24 | Breather valve and battery case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910547126.3A CN110137413A (en) | 2019-06-24 | 2019-06-24 | Breather valve and battery case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110137413A true CN110137413A (en) | 2019-08-16 |
Family
ID=67579182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910547126.3A Pending CN110137413A (en) | 2019-06-24 | 2019-06-24 | Breather valve and battery case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110137413A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114225254A (en) * | 2021-12-24 | 2022-03-25 | 郑州人民医院(郑州人民医院医疗管理中心) | Protection type respirator and respiratory circulation system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829219A (en) * | 2012-09-10 | 2012-12-19 | 浙江埃尼斯阀门有限公司 | Check valve |
| CN106286909A (en) * | 2016-08-29 | 2017-01-04 | 苏州纽威阀门股份有限公司 | A kind of valve flap structure and Double-disc type check valve |
| CN206017928U (en) * | 2016-07-06 | 2017-03-15 | 深圳市沃特玛电池有限公司 | A kind of breather valve |
| CN209786049U (en) * | 2019-06-24 | 2019-12-13 | 深圳市雄韬电源科技股份有限公司 | Breather valve and battery box |
-
2019
- 2019-06-24 CN CN201910547126.3A patent/CN110137413A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829219A (en) * | 2012-09-10 | 2012-12-19 | 浙江埃尼斯阀门有限公司 | Check valve |
| CN206017928U (en) * | 2016-07-06 | 2017-03-15 | 深圳市沃特玛电池有限公司 | A kind of breather valve |
| CN106286909A (en) * | 2016-08-29 | 2017-01-04 | 苏州纽威阀门股份有限公司 | A kind of valve flap structure and Double-disc type check valve |
| CN209786049U (en) * | 2019-06-24 | 2019-12-13 | 深圳市雄韬电源科技股份有限公司 | Breather valve and battery box |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114225254A (en) * | 2021-12-24 | 2022-03-25 | 郑州人民医院(郑州人民医院医疗管理中心) | Protection type respirator and respiratory circulation system |
| CN114225254B (en) * | 2021-12-24 | 2023-02-14 | 郑州人民医院(郑州人民医院医疗管理中心) | Protection type respirator and respiratory circulation system |
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