WO2022194402A1 - Druckausgleichsvorrichtung - Google Patents
Druckausgleichsvorrichtung Download PDFInfo
- Publication number
- WO2022194402A1 WO2022194402A1 PCT/EP2021/074888 EP2021074888W WO2022194402A1 WO 2022194402 A1 WO2022194402 A1 WO 2022194402A1 EP 2021074888 W EP2021074888 W EP 2021074888W WO 2022194402 A1 WO2022194402 A1 WO 2022194402A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- membrane
- housing
- cutting element
- compensation device
- pressure compensation
- Prior art date
Links
- 239000012528 membrane Substances 0.000 claims abstract description 104
- 238000007789 sealing Methods 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 230000009172 bursting Effects 0.000 description 7
- 238000001746 injection moulding Methods 0.000 description 5
- 238000003466 welding Methods 0.000 description 5
- 239000004033 plastic Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002985 plastic film Substances 0.000 description 2
- 229920006255 plastic film Polymers 0.000 description 2
- 239000005871 repellent Substances 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 230000002940 repellent Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/0446—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with an obturating member having at least a component of their opening and closing motion not perpendicular to the closing faces
- F16K17/0453—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with an obturating member having at least a component of their opening and closing motion not perpendicular to the closing faces the member being a diaphragm
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/14—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side with fracturing member
- F16K17/16—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side with fracturing member with fracturing diaphragm ; Rupture discs
-
- 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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/183—Sealing members
- H01M50/186—Sealing members characterised by the disposition of the sealing members
-
- 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
- H01M50/342—Non-re-sealable arrangements
- H01M50/3425—Non-re-sealable arrangements in the form of rupturable membranes or weakened parts, e.g. pierced with the aid of a sharp member
-
- 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
Definitions
- the invention relates to a pressure equalization device for equalizing an internal pressure in a receiving housing of an electrochemical or electrotechnical device, in particular for a battery housing, with a housing that has at least one gas passage opening, the gas passage opening being sealed by means of a gas-permeable or gas-tight membrane which is in or on a membrane receptacle in the housing, is blocked, and wherein the membrane is assigned a cutting element which is designed and positioned in such a way that when the membrane is deformed, the cutting element destroys the membrane at least at one point in order to establish a flow connection between an inner side of the To create pressure compensation device and an outside of the pressure compensation device through the gas passage opening.
- Such a pressure compensation device is known from DE 102011 080325 A1.
- This known pressure compensation device has a carrier element which has a flange section with bores for attachment to a battery housing.
- the carrier element covers the edge of an opening in the battery housing.
- the carrier element is connected to a membrane which blocks a gas passage opening of the carrier element.
- the membrane is stretched between the carrier element and a clamping piece and sealed all around held.
- a housing-like protective element is also used, which has a cutting element in a central area. This cutting element faces the membrane.
- the protective element serves to prevent access to the membrane from the outside of the pressure compensation device.
- the protective element has gas passage openings.
- the membrane is gas permeable but essentially water repellent.
- the water-repellent function is such that water from the environment cannot or only insignificantly get from the outside into the area of the inside.
- gas exchange between the environment and the battery housing can take place via the membrane. This is possible because the membrane is gas permeable. If a sudden bursting pressure occurs, for example due to a fault in the battery housing, the membrane will bulge outwards. A distance is provided between the cutting element and the outside of the membrane, which determines the allowable deformation of the membrane in such a case of damage. If the membrane is curved beyond the permissible deformation, it hits the cutting element, which is designed as a point. The cutting element damages the membrane, causing it to tear. The gas can then quickly escape from the battery housing through the gas passage opening into the environment. Thus, the battery case is prevented from exploding.
- the pressure compensation device known from the prior art has a complex design.
- the inevitable dimensional tolerances between the individual device components do not ensure that the cutting element is always exactly at the same distance from the surface of the membrane in different pressure equalization devices of the same type.
- the bursting behavior in the event of an overload is therefore not exactly reproducible.
- the cutting element is coupled directly or indirectly to the housing by means of a spring section in such a way that that with a deformation of the membrane, the cutting element is at least partially adjusted.
- a reproducible bursting behavior is ensured via the spring behavior of the spring section.
- a spring characteristic can be set with the spring section or a spring characteristic results with the spring section.
- the cutting element has a deflection piece directly or indirectly adjoining the cutting element, with which it bears against the membrane at least in an operating position of the membrane.
- the deflection piece rests against the diaphragm, in particular rests flatly, in the non-pressurized basic position of the membrane, especially when the same ambient pressure is present in the area of the inside and the outside.
- the deflection piece of the membrane is already assigned to the basic position with a precise fit, which results in a particularly well reproducible bursting behavior.
- the deflection piece and/or the spring section of the cutting element is/are connected to the membrane at least in regions, in particular is/are connected to the membrane in a form-fitting manner.
- the cutting element In order to reduce the outlay on parts and assembly, provision can be made for the cutting element to be connected in one piece to the housing.
- the gas passage opening is delimited by an inner wall of the housing, it being preferably provided that the inner wall is designed to be circumferential and that the cutting element in the direction of the gas passage opening is delimited by the inner wall protrudes and preferably protrudes like a tongue from the inner wall.
- a pressure compensation device can be such that the cutting element has edges on opposite sides, which laterally delimit the cutting element, and that the cutting element, at a distance from the inner wall, directly or indirectly adjoins the edges. If it is also provided that the edges preferably converge at least in regions in the direction from the inner wall to the free end of the cutting element, then a defined cutting element can be created in a simple manner in the area of the converging end sections of the edges. Within the scope of the invention, an edge or near the edges can also have or form at least one cutting element.
- At least the free end of the cutting element and/or the edges and/or another area of the cutting element arranged at a distance from the inner wall of the housing has or forms a cutting edge.
- the housing has a membrane receptacle with a connecting section, and that the membrane is connected to the connecting section with a fastening section running all the way around.
- the membrane is back-injected with the housing in a plastic injection molding process. The connection and sealing of the membrane is integrated into the housing in the injection molding process. In this case, the membrane is then connected to the housing in a materially bonded manner.
- the membrane it is also possible for the membrane to be connected to a manufactured housing, in particular to be connected in a materially bonded manner.
- the contact section merges into the connecting section in a planar manner. This enables the membrane to be fitted with a precise fit on the contact section. It is particularly advantageous if the contact section merges seamlessly into the connecting section, so that these two component areas form a uniform surface
- a conceivable variant of the invention is such that the membrane has an outside of the membrane and an opposite inside of the membrane, that the outside of the membrane faces the outside of the housing and the inside of the membrane faces the inside of the housing, and that the cutting element faces the outside of the membrane faces, in particular rests on this in the non-pressurized basic position of the membrane.
- a path limiter is provided which holds a stop at a distance from the cutting element towards the outside of the housing, and that the cutting element strikes the stop when the membrane is deformed.
- the design of the pressure compensation device can be such that the membrane deforms during operational use. With the deformation of the membrane, an adjustment of the cutting element is also made possible. As described above, the cutting element moves against the force of the spring portion. As a result, a spring characteristic with a corresponding force effect on the cutting edge of the cutting element can be implemented.
- a conceivable variant of the invention is such that the housing has a sealing section with a circumferential seal and/or an energy director, with the seal and/or the energy director being arranged as a separate component in the area of a mounting surface, or that the seal and/or the energy director in the area a mounting surface is formed integrally with the housing.
- the surface that serves to support the pressure compensation device on the receiving housing of the electrochemical or electrotechnical device can be used as the mounting surface.
- a circumferential projection can be used as the energy director. This can be used to melt in the connection area between the receiving housing and the housing in order to create a connection and/or seal.
- an integral connection is produced, for example by means of ultrasonic welding, laser welding or friction welding.
- the connection partners are connected to one another by cold or hot caulking.
- an integral connection between the connection partners is also produced.
- the cutting edge of the cutting element can be a linear cutting edge or a cutting edge with a different shape. Furthermore, the cutting edge of the cutting element can also form a punctiform cutting edge.
- the membrane can be watertight or essentially watertight.
- the membrane can be designed in particular as a surface element, in particular as a plastic film.
- a polyester material for example a polyethylene terephthalate or a polycarbonate, can be used for the membrane, or it can also consist entirely of such a material.
- the membrane is preferably designed in the form of a circular disk. This results in advantageous properties when deforming the membrane.
- FIG. 1 shows a perspective view of a first embodiment of a pressure equalization device
- FIG. 2 shows the pressure compensation device according to FIG. 1 in full section
- FIG. 4 shows the pressure compensation device according to FIG. 3 in a view from above
- FIG. 5 shows a third embodiment variant of a pressure equalization device in a perspective view and in full section along the line of section marked IV-IV in FIG
- FIG. 6 shows the pressure compensation device according to FIG. 5 in a view from below.
- FIG. 1 shows a pressure compensation device 10 in a perspective view.
- This pressure compensation device 10 has a housing 20 .
- the housing 20 forms an outside 20.1 and an inside 20.2.
- the housing 20 is operationally installed with a receiving housing, in particular an electrochemical or electrotechnical device, for example a battery housing, then the inside 20.2 is associated with the interior of the receiving housing.
- the outside 20.1 faces away from the interior of the receiving housing and is assigned to the environment.
- the housing 20 forms a cover 21. This is closed at the top with a cover surface 24.
- the housing 20 has a sealing section 22 on the cover 21 opposite the top surface 24 .
- the sealing section 22 can be provided as an annular peripheral projection on the housing
- the housing 20 may be formed and is preferably in front of an outside of the housing 20 in the radial direction.
- the sealing section 22 forms, facing the inside 20.2, a mounting surface 22.1.
- This mounting surface 22.1 is preferably designed as a closed surface in the form of a ring, which more preferably extends in the radial direction.
- a seal can be provided circumferentially, which is formed in the area of the sealing section 22, for example using a 2-component injection molding process, and protrudes in the direction of the inside 20.2.
- an energy director 22.2 can also be provided protruding from the mounting surface 22.1, as shown in FIG.
- the energy director 22.2 can be designed as a circumferential bead.
- the top surface 24 of the housing 20 goes, preferably via a rounded transition into an outer wall 23 of the cover
- the housing 20 forms an inner wall 25 surrounding a gas passage opening 26.2.
- the gas passage opening 26.2 can be closed by means of a membrane 50.
- the membrane 50 is designed as a flat element and preferably consists of a gas-permeable or gas-tight plastic film.
- the membrane 50 is designed to be essentially watertight and is preferably designed to be tear-resistant with sufficient strength to prevent an unintentional failure of the membrane 50 is prevented by the application of water pressure from outside 20.1.
- the membrane 50 has a membrane outside 51 which faces the outside of the housing 20 20.1. Opposite the membrane outside 51, the membrane 50 has a membrane inside 52, which is the inside 20.2. of the housing 20 faces.
- the membrane 50 can have a circumferential fastening section 53 which can in particular be designed in the shape of a ring. With this fastening section 53, the membrane 50 is connected in a gas-tight manner to a connecting section 26.1 of a membrane receptacle 26, preferably connected in a materially bonded manner. In particular, the membrane 50 can be back-injected here with the housing 20 in a plastic injection molding process.
- the connecting section 26.2 is designed as a ring-shaped peripheral surface 26.1 on the membrane receptacle 26.
- the connecting section 26.1 runs around the gas passage opening 26.2 in the form of a ring.
- FIGS. 1 and 2 also show that a cutting element 30 is provided on the housing 20 and is preferably connected to the housing 20 in one piece.
- the cutting element 30 is particularly preferably connected to the inner wall 25 of the housing 20 in one piece.
- the cutting element 30 is connected to the housing 20 via a spring portion 31 . Furthermore, the entire cutting element 30 can additionally also be designed to be spring-elastic or form the spring section 31 .
- the cutting element 30 has a cutting edge 34 .
- the cutting edge 34 can be punctiform, linear, curved or formed in some other way.
- the cutting element 30 can protrude from the housing 20, in particular from the inner wall 25, in a tongue-like manner, in particular protruding radially inwards into the region of the gas passage opening 26.2.
- the cutting element 30 can have edges 32, 33 in the circumferential direction of the wall 25 on opposite sides. These two edges 32, 33 preferably converge, starting from the connection point to the housing 20, in the direction of the free end of the cutting element 30.
- a convexly curved contour is arranged at the free end of the cutting element 30, which the cutting edge 34, preferably with an arcuate cutting edge 34 forms.
- the cutting edge 34 can also have a different contour.
- FIG. 2 shows that the cutting element 30 forms a contact section 35 on its side facing the inside 20.2 of the housing 20.
- This contact section 35 rests on the outside 51 of the membrane. It is preferably the case that the contact section 35 rests on the outside 51 of the membrane when the pressure compensation device 10 is in a pressureless state. Particularly preferably, it can be provided that the contact section 35 is materially connected to the outside 51 of the membrane, at least in certain areas.
- FIG. 2 also shows that the underside of the contact section 35 forms a surface that merges flat into the connecting section 26.1. A cohesive connection between the outside of the membrane 51 and the cutting element 30 or the connecting section 26.1 can be produced across this connection point.
- the cutting element 30 forms a deflection piece 36 that faces the outside of the housing 20 20.1.
- a travel limiter 40 can be provided on the housing 20 .
- the path limiter 40 can be designed as a separate component and connected to the housing 20 via a connecting section 42 .
- the travel limiter 40 is connected in one piece to the housing 20 via this connecting section 42 .
- the travel limiter 20 has a stop 44 which is preferably held at a distance from the housing contour, preferably at a distance from the inner wall 25, by means of a spacer 43.
- the path limiter 40 is arranged at a distance from the cutting element 30 in the direction of the outside 20.1 of the housing 20. In this case, the path limiter 40 can face the deflection piece 36 of the cutting element 30 with an underside 41 .
- the pressure compensation device 10 is inserted into an opening in a receiving housing of an electrotechnical or electrochemical assembly.
- the mounting surface 22.1 covers the edge of this opening.
- Energy is introduced into the energy director 22.2 via a suitable energy-generating device, for example a laser welding device or an ultrasonic welding device. This melts and connects to the receiving housing in the area of the mounting surface 22.1. In this way, a circumferentially sealed connection is established between the housing 20 and the receiving housing.
- the pressure in the receiving housing changes due to operational reasons. If the pressure in the receiving housing increases, the membrane 50 arches towards the outside 20.1. The cutting element 30 is deflected resiliently at its spring section 31 towards the outside 20.1. If the pressure in the receiving housing drops, the membrane 50 arches towards the inside 20.2.
- the membrane 50 arches in the direction of the outside 20.1.
- the cutting element 30 is deflected again until its deflection piece 36 hits the stop 44 of the travel limiter 40 .
- the cutting element 30 of the membrane 50 against a high resistance. This resistance causes the blade 34 to cut the membrane 50 and then rupture it. In this way, the internal pressure in the receiving housing can relax via the gas passage opening 26.2.
- the cutting element 30 and the spring section 31 are designed in such a way that the cutting element 34 already cuts through the membrane 50 before the deflection piece 36 hits the stop 44 .
- the path limiter 40 then forms a safety feature which ensures in any case that the membrane 50 is destroyed if an impermissibly high pressure arises in the receiving housing.
- FIGS. 1 and 2 A further variant of a pressure compensation device 10 is shown in FIGS.
- the design of this pressure equalization device 10 corresponds to that of the pressure equalization device 10 according to FIGS. 1 and 2. In order to avoid repetition, reference can therefore be made to the above explanations.
- the pressure compensation device 10 according to FIGS. 3 and 4 does not have a travel limiter 40.
- the cutting element 30 and the spring section 31 are designed in such a way that the cutting element 34 reliably destroys the membrane 50 in the event of an impermissible deformation of the membrane.
- FIGS. 5 and 6 a further embodiment variant of a pressure compensation device 10 is shown.
- this pressure equalization device 10 corresponds to the pressure equalization device 10 according to FIGS. 3 and 4 or according to FIGS. 1 and 2, for which reason reference is made to the above statements. Therefore, only the differences between the design variants are explained below.
- the cover has a on its outer periphery
- Tool holder on in order to mount the pressure compensation device 10 can.
- the tool holder is designed as an external hexagon.
- Pressure equalization device 10 has a protruding integrally formed fastening part 28. With this fastening part 28, the pressure equalization device 10 can be mounted in the opening of the receiving housing.
- the fastening part 28 preferably has a threaded section 28.1, which is preferably designed as an external thread. With this external thread, the housing 20 can be screwed into an internal thread of the receiving housing.
- the fastening part 28 can have a peripheral inner wall, resulting in a gas passage area which is in gas-conducting connection with the gas passage opening 26.2. Housing 20 is.
- connection piece 27 can be integrally formed.
- the connection piece 27 forms a discharge area 27.1, which surrounds a gas duct 27.3.
- the gas guide 27.3 can be in air-conducting connection with the gas passage opening 26.2.
- the connection piece 27 forms a connecting piece 27.2 with an outlet opening 27.4.
- a suitable derivation can be fastened in the area of the connecting piece 27.2.
- FIG. 1 also show that a circumferential sealing section 22, for example with a circumferential groove, can be provided in the area of the mounting surface 22.1. A seal can be inserted into this circumferential groove.
- a sealing element prefferably be molded onto the sealing section, in particular into the circumferential groove, in particular molded onto the housing 20 in a 2-component injection molding process or foamed into the groove.
- the housing 20 can be made of plastic within the scope of the invention, in particular it can be designed in one piece as a plastic injection molded part.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Gas Exhaust Devices For Batteries (AREA)
- Safety Valves (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2023557045A JP2024511362A (ja) | 2021-03-19 | 2021-09-10 | 圧力補償装置 |
US18/279,620 US20240145848A1 (en) | 2021-03-19 | 2021-09-10 | Pressure equalization device |
KR1020237035413A KR20230173101A (ko) | 2021-03-19 | 2021-09-10 | 압력 균형 장치 |
EP21777450.4A EP4308835A1 (de) | 2021-03-19 | 2021-09-10 | Druckausgleichsvorrichtung |
CN202180095428.7A CN117120757A (zh) | 2021-03-19 | 2021-09-10 | 压力平衡装置 |
IL305878A IL305878A (en) | 2021-03-19 | 2021-09-10 | A device for comparing pressure |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102021106903.3A DE102021106903A1 (de) | 2021-03-19 | 2021-03-19 | Druckausgleichsvorrichtung |
DE102021106903.3 | 2021-03-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022194402A1 true WO2022194402A1 (de) | 2022-09-22 |
Family
ID=77913088
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2021/074888 WO2022194402A1 (de) | 2021-03-19 | 2021-09-10 | Druckausgleichsvorrichtung |
Country Status (8)
Country | Link |
---|---|
US (1) | US20240145848A1 (de) |
EP (1) | EP4308835A1 (de) |
JP (1) | JP2024511362A (de) |
KR (1) | KR20230173101A (de) |
CN (1) | CN117120757A (de) |
DE (1) | DE102021106903A1 (de) |
IL (1) | IL305878A (de) |
WO (1) | WO2022194402A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102022119107A1 (de) | 2022-07-29 | 2024-02-01 | Bodo Konzelmann KG. | Druckausgleichsvorrichtung |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4432445A1 (de) * | 2023-03-14 | 2024-09-18 | Cellforce Group GmbH | Vereinfachte montage einer berstmembran durch verstärkung |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1415708A (en) * | 1973-11-14 | 1975-11-26 | Black Sivalls & Bryson Inc | Safety pressure relief device |
US5720380A (en) * | 1995-12-01 | 1998-02-24 | Oklahoma Safety Equipment Co. | Reverse buckling disk with incorporated knife |
WO2002029296A1 (en) * | 2000-10-02 | 2002-04-11 | John Goddard | Pressure release bursting disc |
US20040028995A1 (en) * | 2002-08-09 | 2004-02-12 | Alexander Shelekhin | Electrochemical cell with flat casing and vent |
US20050103786A1 (en) * | 2003-11-13 | 2005-05-19 | Fike Corporation | Non-fragmenting pressure relief apparatus |
EP1591703A2 (de) * | 1999-12-30 | 2005-11-02 | Process Equipment Inc. | Sicherheitventil mit Sollbruchstelle |
DE102011080325A1 (de) | 2011-08-03 | 2013-02-07 | Elringklinger Ag | Druckausgleichsvorrichtung für ein Gehäuse einer elektrochemischen Vorrichtung |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2252519A1 (en) | 1973-11-26 | 1975-06-20 | Labem | Safety valve for pressurised storage container - overpressure releases plunger to rupture sealing diaphragm |
JPH11273652A (ja) | 1998-03-25 | 1999-10-08 | Hitachi Metals Ltd | 導電脆性材料及びその製造方法とこれらを用いた二次電池用電流遮断非復帰型安全装置及びこれらの安全装置を用いた二次電池 |
DE102009000802A1 (de) | 2009-02-12 | 2010-08-19 | Robert Bosch Gmbh | Überdruckventil für einen Verpackungsbehälter |
CA3078980A1 (en) | 2017-10-12 | 2019-04-18 | Bs&B Innovations Limited | Rupture disk |
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2021
- 2021-03-19 DE DE102021106903.3A patent/DE102021106903A1/de active Pending
- 2021-09-10 JP JP2023557045A patent/JP2024511362A/ja active Pending
- 2021-09-10 US US18/279,620 patent/US20240145848A1/en active Pending
- 2021-09-10 IL IL305878A patent/IL305878A/en unknown
- 2021-09-10 KR KR1020237035413A patent/KR20230173101A/ko active Search and Examination
- 2021-09-10 CN CN202180095428.7A patent/CN117120757A/zh active Pending
- 2021-09-10 EP EP21777450.4A patent/EP4308835A1/de active Pending
- 2021-09-10 WO PCT/EP2021/074888 patent/WO2022194402A1/de active Application Filing
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GB1415708A (en) * | 1973-11-14 | 1975-11-26 | Black Sivalls & Bryson Inc | Safety pressure relief device |
US5720380A (en) * | 1995-12-01 | 1998-02-24 | Oklahoma Safety Equipment Co. | Reverse buckling disk with incorporated knife |
EP1591703A2 (de) * | 1999-12-30 | 2005-11-02 | Process Equipment Inc. | Sicherheitventil mit Sollbruchstelle |
WO2002029296A1 (en) * | 2000-10-02 | 2002-04-11 | John Goddard | Pressure release bursting disc |
US20040028995A1 (en) * | 2002-08-09 | 2004-02-12 | Alexander Shelekhin | Electrochemical cell with flat casing and vent |
US20050103786A1 (en) * | 2003-11-13 | 2005-05-19 | Fike Corporation | Non-fragmenting pressure relief apparatus |
DE102011080325A1 (de) | 2011-08-03 | 2013-02-07 | Elringklinger Ag | Druckausgleichsvorrichtung für ein Gehäuse einer elektrochemischen Vorrichtung |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102022119107A1 (de) | 2022-07-29 | 2024-02-01 | Bodo Konzelmann KG. | Druckausgleichsvorrichtung |
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DE102021106903A1 (de) | 2022-09-22 |
CN117120757A (zh) | 2023-11-24 |
KR20230173101A (ko) | 2023-12-26 |
EP4308835A1 (de) | 2024-01-24 |
JP2024511362A (ja) | 2024-03-13 |
IL305878A (en) | 2023-11-01 |
US20240145848A1 (en) | 2024-05-02 |
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