CN205992562U - Pressure equaliser - Google Patents
Pressure equaliser Download PDFInfo
- Publication number
- CN205992562U CN205992562U CN201620293455.1U CN201620293455U CN205992562U CN 205992562 U CN205992562 U CN 205992562U CN 201620293455 U CN201620293455 U CN 201620293455U CN 205992562 U CN205992562 U CN 205992562U
- Authority
- CN
- China
- Prior art keywords
- pressure
- thin film
- gas
- bearing part
- equaliser
- 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.)
- Active
Links
Classifications
-
- 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
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
This utility model provides a kind of pressure equaliser of the internal pressure in housing for equilibrium electrochemical device, including at least one gas permeable film, for the gas exchange between the inner space of housing and the surrounding of electrochemical appliance, described pressure equaliser has the rupture pressure disc separating with described gas permeable film, rupture pressure disc is used for when overstepping the extreme limit internal pressure discharging gas exchange cross section, it is provided with thin film bearing part, described thin film bearing part is used for arranging described gas permeable film and described rupture pressure disc, under explosion proof conditions, the explosion-proof Route guiding gas extending along the described gas exchange cross section through release under described gas permeable film.Can realize in the normal operation of set of cells high gas exchange and rise simultaneously for unexpected, the volatile internal pressure in set of cells situation when dissipate substantial amounts of gas in time internal diabetes the shortest and significantly reduce the risk of whole set of cells blast.
Description
Technical field
This utility model is related to a kind of pressure equaliser, for inside pressure in the housing of electrochemical appliance for the balance
Power, including at least one gas permeable film, for entering between the inner space of housing and the surrounding of electrochemical appliance
Row gas exchange.
Background technology
Such device is generally used for the pressure balance of the inside of set of cells/accumulator.Closing battery pack system interior
Portion's pressure should mate external pressure, thus not causing to battery housing to damage.Internal pressure can be more than or less than
External pressure, (barometric pressure difference of mobile battery, the pressure being caused by temperature difference depending on the range of application of this set of cells to be regarded
Difference).
A kind of pressure equaliser is open by EP 2 554 882 A1.Disclosed pressure equaliser proposes, gas
Osmotic membrane is depended on enclosure interior pressure distortion and is destroyed by the tip of urgent exhaust needle when overstepping the extreme limit pressure.
Other pressure equaliser is open by JP 2,013 168293 A.In this pressure equaliser, exceeding pole
Also gas permeable film must be destroyed during limits pressure.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of simple pressure equaliser.
This purpose utilizes the feature as described in the preamble of claim 1 in pressure equaliser according to this utility model
Realize, prolong along through the gas exchange cross section of release in the surrounding of gas permeable film in the case of explosion-proof
The explosion-proof Route guiding gas stretched.
Different thin film are provided with according to this utility model, these thin film meet function different from each other.The first film is
Gas permeable film, its function is only in that internally space and electrochemical appliance, especially surrounding's ring of the housing of set of cells
Gas exchange between border, to realize and to stop dirt, dust or fluid from entering in inner space simultaneously.This gas oozes
Thin film can be optimized in terms of its gas exchange function and therefore especially need not become in terms of other standard thoroughly
Shape ability and damage property aspect are optimized.
The second thin film separating with the first film is set to the form of rupture pressure disc.The function of this second thin film is only in that,
Lost efficacy in default limit internal pressure.Therefore, this rupture pressure disc need not be optimized in terms of gas exchange；Advantageously should
Rupture pressure disc is airtight, watertight and dust-proof.
It is provided with thin film bearing part to arrange gas permeable film and the rupture pressure disc that disconnects, which simplify two
The manual operation of individual different thin film.Also included by two thin film bearing parts and tool according to pressure equaliser of the present utility model
The unit that two thin film having above-mentioned different function are constituted.
According to this utility model, can realize in the normal operation of set of cells high gas exchange and simultaneously for
When unexpected, volatile internal pressure in set of cells rises the situation of (blast for example depending on the battery unit of fault)
Dissipate substantial amounts of gas in time internal diabetes the shortest and significantly reduce the risk of whole set of cells blast.
According to this utility model, gas permeable film (namely in this case, i.e. rupture pressure disc in the case of explosion-proof
When overstepping the extreme limit internal pressure it is anticipated that ground lost efficacy) can remain intact, because the gas that the row for the treatment of leads in the case of explosion-proof
Body is not passed through gas permeable film flowing, but flows along explosion-proof path under the surrounding of gas permeable film.This meaning
Taste, and is not passed through the pellicular front guiding of gas permeable film gas to be discharged in explosion proof conditions, but in this pellicular front
Other guiding gas to be discharged.Therefore, this gas permeable film will not become the flowing that must be pierced in the case of explosion-proof
Obstacle.Gas be more can be not dependent in explosion proof conditions gas permeable film and in the case of unencumbered
Discharge through gas permeable film.
In normal operation, gas is along gas exchange path exchanging；This gas exchange path and explosion-proof path deviation.
Deviation between gas exchange path and explosion-proof path can be two paths offset with one another along its overall extension or
Portions only along path deviates.
Particularly advantageously, when explosion-proof path along and/or housing insert parallel to pressure equaliser center
Axis extend and/or along and/or extend parallel to the central axis of thin film bearing part, thus in explosion proof conditions, larger
Gas volume can in directapath and do not have deflection in the case of be discharged into from the inner space of set of cells around ring
In border.
Preferably gas exchange path is around rupture pressure disc extension；Here is it is possible that gas exchange path has deflection
Part.Because gas exchange is started with relatively low flowing velocity in normal operation, therefore this deflection piece is not defect；But its
The cramped construction of pressure equaliser can be contributed.
Rupture pressure disc is favorably the body of film type, and it is torn when loading too high pressure.Special in this kind of situation
Not advantageously, the link position of the part with thin film bearing part of the part of rupture pressure disc is retained；In this way, explosion-proof
" bursting apart " in the surrounding of set of cells for the part of film is avoided by.
It is possible that but whether certain it is essential that rupture pressure disc is prevented by safety from outside, also
It is the manual operation of the surrounding from set of cells.There is gas perforation and/or the cap of pipeline section for example can be provided as
Safety.
A design of the present utility model proposes, rupture pressure disc and thin film bearing part are made up of identical material.
The pressure equaliser simplifying further thus can be provided.
Another design of the present utility model proposes, rupture pressure disc and thin film bearing part are made integrally with each other.
Here is it is possible that rupture pressure disc and thin film bearing part are made up of identical material, or rupture pressure disc and thin film bearing part are by difference
Material make.Correspondingly, thin film bearing part and rupture pressure disc can spray injection work with one pack system when using identical material
Skill is made and is made with multicomponent injection Shooting Technique when using different material.
Advantageously, thin film bearing part is made up of synthetic material, is preferably made up of elastomeric material, especially has thermoplasticity
Elastomer is made.Such thin film bearing part can manufacture simply and cheaply and achieve and especially use elastomeric material
When simultaneously pass through sealing function.
One particularly advantageous design proposes, thin film bearing part there is a central axis and rupture pressure disc transverse to,
Especially arrange perpendicular to this center line axis.It is capable of king-sized aerofluxuss cross section in this way, this aerofluxus is transversal
Face was released when rupture pressure disc loses efficacy.
To this additionally or alternatively, when gas permeable film with one heart with respect to thin film supporting body central shaft
Line is favourable when extending.King-sized gas-exchange surface can be provided in this way.
Gas infiltration that one favourable design proposes hollow prism, especially being formed thin hollow cylinder
Film.It is possible that prism, especially main body, especially cylinder are to close or circumferentially see to be out in peripheral side
Put, that is, only extend on part-circular periphery.
When gas permeable film is at least extended in one direction with the partial section of thin film, this plane is with respect to explosion-proof
The plane that film extends wherein angularly, especially points vertically upwards, and is particularly beneficial in forming gas exchange path.
In another design of the present utility model, it is provided with the perforation of the housing for being arranged in electrochemical appliance
Place housing insert, wherein thin film bearing part be arranged on housing insert or in.Housing mixes part and achieves and electrification
The mechanically stable learning the housing of device connects, and especially for this situation, that is, thin film bearing part is made up of elastomeric material.Housing
Mix part to be made up of synthetic material or plastic composite, but preferably it by metal, such as aluminum is made.
It is furthermore preferred that at least one having for being sealed with respect to housing insert when thin film bearing part is close
During envelope portion.Guarantee in the normal operation of set of cells in this way, that is, gas exchange is realized simultaneously by gas permeable film
And do not have dirt, dust or water can invade in inner chamber.
Other feature and advantage of the present utility model are the contents of the diagram of description below and preferred embodiment.
Brief description
In figure illustrates：
Fig. 1 is the axonometric chart of a design of pressure equaliser；
Fig. 2 is the axonometric chart of a design of the thin film bearing part of the pressure equaliser according to Fig. 1；
Fig. 3 is the top view of the pressure equaliser according to Fig. 1；
Fig. 4 be along in figure 3 with IV-IV indicate transversal and when being assembled on electrochemical appliance according to figure
The side view of 1 pressure equaliser；
Fig. 5 is the side view corresponding to Fig. 4 of an other design of pressure equaliser.
Specific embodiment
Fig. 1 shows on the whole with a design of the housing insert of label 12 mark.This housing insert 12
Extend between cap 16 and department of assembly 18 along central axis 14.
Cap 16 has at least one, preferably multiple pores 20.
Department of assembly 18 is for example designed to threaded portion or the form of press-in portion 22 or lock part.
In addition housing insert 12 has the inner chamber 24 extending along central axis 14.
Housing insert 12 be on the whole the part with the pressure equaliser of label 10 mark (with reference to Fig. 2, Fig. 3 and
Fig. 4).Pressure equaliser 10 is used for balance in electrochemical appliance, the especially internal pressure in the housing 26 of set of cells, this electricity
The inner chamber of pond group is marked with label 28 in the diagram.The surrounding of housing 26 is marked with reference number 30.
Housing 26 has the housing wall 32 with opening in shell 34.Department of assembly 18 and the opening in shell 34 of housing insert 12
Edge screw, extrude and/or kayser together.
Pressure equaliser 10 includes on the whole with thin film bearing part label 36 mark and shown in figure 2, its
For example it is made up of elastic synthetic material.Thin film bearing part 36 has first annular maintaining part 38, for housing insert 12
The receiving portion 40 of grooved connect.
Protrude connecting plate 42 separated from one another in circumferential direction from first annular maintaining part 38, it is used for first
Annular retaining portion 38 is connected with the second annular retaining portion 44.
This connecting plate 42 extends parallel to the central axis 45 of thin film bearing part 36.The central axis 45 of thin film bearing part 36
Align with the central axis 14 of housing insert 12.
Seeing along central axis 45 keeps the first annular maintaining part 38 of spacing and the second annular retaining portion 44 to be used for each other
Arrangement gas permeable film 46, it is designed to cylinder and the central axis 45 around thin film bearing part 36 extends.
Gas permeable film 46 is for example connected with first annular maintaining part 38 by bonding.To this alternatively, thin film
46 can also be made by spraying injection in the injection injection manufacture process to thin film bearing part 36.
Between second annular retaining portion 44 and the wall 48 of housing insert 12, there is interval, thus the inner chamber 28 in set of cells
Gas exchange path 64 is produced and the pellicular front being radially outward directed of gas permeable film 46 between.This gas exchange path 64
Extendible portion be on the pellicular front being radially outward directed of gas permeable film 46, it is directly interior with housing insert 12
Chamber 24 connects.
Second annular retaining portion 44 is simultaneously used for arranging rupture pressure disc 50 detached with gas permeable film 46.This rupture pressure disc 50
Preferably circular, extend in a plane 66, this plane extends perpendicular at least one central axis (14,45), and
Only it is designed on its explosion prevention function, that is, for example in the inner chamber 28 of electrochemical appliance, the overvoltage of such as 0.4bar can lead to
Rupture pressure disc 5 tears or ruptures, thus along straight line, moment can be realized big, discharge face that is not having material (gas in explosion-proof path 68
Body exchanges cross section).
Rupture pressure disc 50 is for example made into integration with thin film bearing part 36.
In embodiment illustrated in the accompanying drawings, rupture pressure disc 50 is separately positioned with thin film bearing part 36.In order to by rupture pressure disc 50
It is fixed on thin film bearing part 36, thin film bearing part 36 has the fixture 52 of annular, by this annular fixing member, rupture pressure disc 50
Edge 54 connect the annular of the edge part being directed radially inwardly toward especially being clamped in gas permeable film 46 and fixture 52
Clamping part 56 between.
Fixture 52 carries the distance piece 58 arranged with being distributed axially along, and these distance pieces are resisted against housing insert
On the inner side 60 of 12 wall 48 and for thin film bearing part 36, the arrangement of the mechanically stable in housing insert 12 makes tribute
Offer.
The first annular maintaining part 38 of thin film bearing part 36 is simultaneously as the connecting portion for being connected with housing insert 12
And as the sealing for being sealed to housing insert 12.In order to improve sealing, additional or replaceable to this
Be setting O-ring 62.
The cap 16 with gas perforation 20 forms the safety 70 for protecting rupture pressure disc 50.But can also abandon
Such safety and make the inner chamber 24 of housing insert 12 towards surrounding 30 open (with reference to Fig. 5).
Alternatively, or be additional to have gas perforation cap 16, on the surrounding side of housing insert 12
It is additionally provided with flexible pipe 72 (with reference to Fig. 5, there illustrate only a hose end being connected with housing insert 12).So
Flexible pipe 72 same as protecting the safety 70 of rupture pressure disc 50 to play a role.This flexible pipe 72 is preferably logical in its free end
Enter in the region of surrounding 30, the gas flow arranging suddenly derivation from set of cells can be received in calm strategical vantage point in this region.
Claims (13)
1. the pressure equaliser (10) of the internal pressure in a kind of housing (26) for equilibrium electrochemical device, including at least
One gas permeable film (46), for ring around the inner space (28) of described housing (26) and described electrochemical appliance
Gas exchange between border (30), wherein, described pressure equaliser (10) has and described gas permeable film (46) separation
Rupture pressure disc, described rupture pressure disc be used for when overstepping the extreme limit internal pressure discharge gas exchange cross section, and, be provided with
Thin film bearing part (36), described thin film bearing part is used for arranging described gas permeable film (46) and described rupture pressure disc (50), its
It is characterised by, under explosion proof conditions, transversal along the described gas exchange through release under described gas permeable film (46)
Explosion-proof path (68) guiding gas that face extends.
2. pressure equaliser (10) according to claim 1 is it is characterised in that described rupture pressure disc (50) and described thin film
Bearing part (36) is made up of identical material.
3. pressure equaliser (10) according to claim 1 is it is characterised in that described rupture pressure disc (50) and described thin film
Bearing part (36) is integral with one another to be made.
4. pressure equaliser (10) according to claim 2 is it is characterised in that described rupture pressure disc (50) and described thin film
Bearing part (36) is integral with one another to be made.
5. according to pressure equaliser in any one of the preceding claims wherein (10) it is characterised in that described thin film carries
Part (36) is made up of synthetic material, preferably by elastomeric material, is especially made up of thermoplastic elastomer (TPE).
6. pressure equaliser (10) according to any one of claim 1 to 4 is it is characterised in that described thin film carries
Part (36) has central axis (45), and described rupture pressure disc (50) is horizontal with respect to described central axis (45), especially
It is perpendicular to described central axis.
7. pressure equaliser (10) according to any one of claim 1 to 4 is it is characterised in that described thin film carries
Part (36) has central axis (45) and described gas permeable film (46) prolongs with one heart with respect to described central axis (45)
Stretch.
8. pressure equaliser (10) according to any one of claim 1 to 4 is it is characterised in that described gas permeates
Thin film (46) is designed to hollow prism shape, especially hollow cylinder.
9. pressure equaliser (10) according to any one of claim 1 to 4 is inserted it is characterised in that being provided with housing
Enter part (12), for being arranged in the perforation (34) of the housing of described electrochemical appliance, and described thin film bearing part (36) cloth
Put on described housing insert (12) or among.
10. pressure equaliser (10) according to claim 9 is it is characterised in that described thin film bearing part (36) has
At least one sealing (38), for sealing described housing insert (12).
11. pressure equalisers (10) according to claim 9 it is characterised in that described explosion-proof path (68) along with/
Or parallel to described housing insert (12) central axis (14) extend and/or along and/or parallel to described thin film carry
The central axis (45) of part (36) extends.
12. pressure equalisers (10) according to any one of claim 1 to 4 are it is characterised in that put down in described pressure
In the normal operation of weighing apparatus device (10), gas exchanges along gas exchange path (64), and described gas exchange path is around described
Rupture pressure disc (50) extends.
13. pressure equalisers (10) according to any one of claim 1 to 4 are it is characterised in that described gas permeates
Thin film (46) at least with described gas permeable film (46) regional area with respect to a plane (66) in one direction
Angled extension, preferred vertical extends, and described rupture pressure disc (50) extends in described plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620293455.1U CN205992562U (en) | 2016-04-09 | 2016-04-09 | Pressure equaliser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620293455.1U CN205992562U (en) | 2016-04-09 | 2016-04-09 | Pressure equaliser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205992562U true CN205992562U (en) | 2017-03-01 |
Family
ID=58102935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620293455.1U Active CN205992562U (en) | 2016-04-09 | 2016-04-09 | Pressure equaliser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205992562U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113924828A (en) * | 2019-06-13 | 2022-01-11 | R.施塔尔开关设备有限责任公司 | Explosion-proof housing with reinforcing frame |
| CN115298891A (en) * | 2020-03-26 | 2022-11-04 | 考特克斯·特克斯罗恩有限公司及两合公司 | Battery housing, traction battery, motor vehicle and method for producing a battery housing |
-
2016
- 2016-04-09 CN CN201620293455.1U patent/CN205992562U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113924828A (en) * | 2019-06-13 | 2022-01-11 | R.施塔尔开关设备有限责任公司 | Explosion-proof housing with reinforcing frame |
| CN113924828B (en) * | 2019-06-13 | 2024-04-30 | R.施塔尔开关设备有限责任公司 | Explosion-proof housing with reinforcing frame |
| CN115298891A (en) * | 2020-03-26 | 2022-11-04 | 考特克斯·特克斯罗恩有限公司及两合公司 | Battery housing, traction battery, motor vehicle and method for producing a battery housing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9428304B2 (en) | Overpressure security vent and exhaust device for a container | |
| JP3208934U (en) | Pressure compensator | |
| CN205992562U (en) | Pressure equaliser | |
| CN111164794B (en) | Exhaust device for battery and battery comprising same | |
| CN212004432U (en) | Explosion-proof relief valve of metalwork | |
| CN105529423A (en) | New energy battery explosion-proof valve | |
| KR20120088566A (en) | Energy storage device | |
| CN110311079B (en) | Explosion-proof breathable membrane assembly for power battery pack and battery pack explosion-proof breathable valve thereof | |
| US9611819B2 (en) | Air filter assembly with charcoal canister | |
| CN110226045A (en) | Accumulator | |
| CN107278338A (en) | Device for equalizing the internal pressure in a closed housing | |
| US20230291067A1 (en) | Pressure equalization device, method for pressure equalization and housing | |
| CN106958675B (en) | Elastic body structure type waterproof breathable explosion-proof valve | |
| CN208444884U (en) | A kind of flange form power battery safety valve device for pure electric vehicle | |
| CN214662321U (en) | Valve body with ventilative explosion-proof trinity function of pressure release | |
| CN215266567U (en) | Balance moisture absorption explosion-proof valve for ternary lithium power battery pack | |
| CN211715847U (en) | Power battery safety arrangement with waterproof breather valve | |
| CN213780666U (en) | Exhaust watch crown and watch | |
| CN218731597U (en) | Ejector pin type explosion-proof valve and battery assembly with same | |
| CN210950081U (en) | Liquid blocking device for ventilation valve | |
| CN208670172U (en) | A kind of novel waterproof air previous explosion-proof valve | |
| CN205828451U (en) | Cylindrical lithium battery explosion-proof combined block | |
| CN207489979U (en) | A kind of explosion-protection equipment of lithium battery | |
| CN219755437U (en) | Explosion-proof valve structure and battery | |
| KR200493141Y1 (en) | Pressure balancing apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |