WO2022175701A1 - Évent et joint d'étancheité de protection contre les infiltrations d'eau à haute pression - Google Patents

Évent et joint d'étancheité de protection contre les infiltrations d'eau à haute pression Download PDF

Info

Publication number
WO2022175701A1
WO2022175701A1 PCT/IB2021/000100 IB2021000100W WO2022175701A1 WO 2022175701 A1 WO2022175701 A1 WO 2022175701A1 IB 2021000100 W IB2021000100 W IB 2021000100W WO 2022175701 A1 WO2022175701 A1 WO 2022175701A1
Authority
WO
WIPO (PCT)
Prior art keywords
vent
gasket
hole
application structure
axial
Prior art date
Application number
PCT/IB2021/000100
Other languages
English (en)
Inventor
Andreas Gruber
Daniel KEGLMEIER
Original Assignee
W. L. Gore & Associates Gmbh
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by W. L. Gore & Associates Gmbh filed Critical W. L. Gore & Associates Gmbh
Priority to PCT/IB2021/000100 priority Critical patent/WO2022175701A1/fr
Publication of WO2022175701A1 publication Critical patent/WO2022175701A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • H05K5/0213—Venting apertures; Constructional details thereof
    • H05K5/0216—Venting plugs comprising semi-permeable membranes

Definitions

  • the field of invention relates to vents provided with sealing gaskets. More particularly, the field of invention relates to vents provided with sealing gaskets that protect against water ingress when subjected to application of water at high pressure and high temperature.
  • Figure 1A shows a cross-sectional schematic representation of an exemplary venting system as installed in a hole in a representative application structure.
  • Figure IB shows a cross-sectional schematic representation of the exemplary venting system shown in Figure 1 A, shown with a gasket removed therefrom.
  • Figure 2A shows a cross-sectional view of a representative hole in which an exemplary venting system may be installed.
  • Figure 2B shows a cross-sectional view of a representative hole in which an exemplary venting system may be installed.
  • Figure 2C shows a cross-sectional view of a representative hole in which an exemplary venting system may be installed.
  • Figure 2D shows a cross-sectional view of a representative hole in which an exemplary venting system may be installed.
  • Figure 2E shows a cross-sectional view of a representative hole in which an exemplary venting system may be installed.
  • Figure 2F shows a cross-sectional view of a representative hole in which an exemplary venting system may be installed.
  • Figure 2G shows a cross-sectional view of a representative hole in which an exemplary venting system may be installed.
  • Figure 2H shows a cross-sectional view of a representative hole in which an exemplary venting system may be installed.
  • Figure 21 shows a cross-sectional view of a representative hole in which an exemplary venting system may be installed.
  • Figure 3A shows a partial cross-sectional view of an exemplary venting system installed in a hole in a representative application structure.
  • Figure 3B shows a partial cross-sectional view of the exemplary venting system of Figure 3 A prior to installation in the hole in the representative application structure.
  • Figure 4A shows a partial cross-sectional view of an exemplary venting system installed in a hole in a representative application structure.
  • Figure 4B shows a partial cross-sectional view of a gasket of the exemplary venting system of Figure 4A prior to installation in the hole in the representative application structure.
  • Figure 5A shows a partial cross-sectional view of an exemplary venting system installed in a hole in a representative application structure.
  • Figure 5B shows a partial cross-sectional view of the exemplary venting system of Figure 5 A prior to installation in the hole in the representative application structure.
  • Figure 6A shows a partial cross-sectional view of an exemplary venting system installed in a hole in a representative application structure.
  • Figure 6B shows a partial cross-sectional view of the exemplary venting system of Figure 6A prior to installation in the hole in the representative application structure.
  • Figure 7A shows a partial cross-sectional view of an exemplary venting system installed in a hole in a representative application structure.
  • Figure 7B shows a partial cross-sectional view of the exemplary venting system of Figure 7A prior to installation in the hole in the representative application structure.
  • Figure 8 shows a partial cross-sectional view of an exemplary venting system installed in a hole in a representative application structure.
  • Figure 9 shows a cross-sectional view of the exemplary venting system of Figures 3 A and 3B as displaced to one side by exposure to a high-pressure fluid during performance of leak testing.
  • Figure 10A shows a side view photograph of a tested sample of a venting system.
  • Figure 10B shows a section view photograph of the tested sample of Figure 10A.
  • a system includes a vent configured for insertion into an application structure in an axial direction, wherein the application structure includes a first surface, a second surface opposite the first surface, and a hole extending through the application structure in the axial direction from the first surface to the second surface, the hole defining an inner surface, wherein at least a portion of the inner surface is not perpendicular to the first surface; and wherein the vent includes: an axial portion extending from a first end to a second end, wherein the axial portion is configured to extend through the hole in the axial direction such that the first end is proximate to the first surface and the second end extends toward the second surface, and a protrusion extending from the first end of the axial portion in an outward radial direction, wherein the axial portion of the vent and the protrusion of the vent are configured to cooperate with the at least a portion of the inner surface to define a recess when the vent is positioned in the hole ; the system further including a gasket
  • the vent includes an inner radial portion extending from the second end of the axial portion in the outward radial direction, wherein the inner radial portion is configured to pass through the hole during insertion and to abut the second surface of the application structure after insertion to provide a snap fit between the vent and the application structure.
  • the protrusion of the vent and the inner radial portion of the vent are mutually positioned so as to cause the second portion of the gasket to be compressed between the protrusion and the first surface of the application structure when the inner radial portion abuts the second surface of the application structure.
  • the hole is a threaded hole
  • the axial portion of the vent includes external threads configured to engage the threaded hole.
  • the vent and the gasket are configured such that threaded engagement of the axial portion of the vent with the threaded hole causes compression of the second portion of the gasket.
  • the gasket includes an elastomeric material.
  • the elastomeric material includes one of an un-filled thermoplastic material, a rubber, or a thermoplastic elastomer.
  • the thermoplastic elastomer includes ethylene-propylene-diene monomer, a thermoplastic polyurethane elastomer, a thermoplastic polystyrole elastomer, or a thermoplastic polyamide elastomer.
  • the gasket is bonded to the vent. In some embodiments, the gasket is bonded to the vent either (a) along the axial portion of the vent, (b) along the protrusion of the vent, or (c) along the axial portion of the vent and along the protrusion of the vent.
  • the gasket is overmolded to the vent. In some embodiments, the gasket is not attached to the vent.
  • the hole is one of circular, polygonal, elliptical, or elongate.
  • the second portion of the gasket is configured not to be compressed in the outward radial direction.
  • the at least a portion of the hole includes a chamfer.
  • the at least a portion of the hole includes a curved portion including at least one of a convex curve or a concave curve.
  • the vent is configured to be retained in the application structure by one of a press fit or a bayonet fit.
  • the first portion of the gasket and the second portion of the gasket are integrally formed with one another.
  • the first portion of the gasket includes a portion of a first material
  • the second portion of the gasket includes a portion of a second material
  • the portion of the first material and the portion of the second material are joined to one another to form the gasket.
  • the second material is more compressible than the first material.
  • the gasket includes a third portion positioned between the first portion and the second portion, and the third portion is configured to contact the application structure between the first portion and the second portion.
  • sufficient water ingress protection further satisfies an IPX6K rating, when tested for water ingress in accordance with an IPX6K testing protocol as defined in the ISO20653:2013 standard.
  • a method includes providing a vent and a gasket, wherein the vent includes an axial portion extending from a first end to a second end, and a protrusion extending from the first end of the axial portion in an outward radial direction, and wherein the gasket includes a first portion; and a second portion extending from the first portion, and wherein the gasket includes a compliant material; the method also including positioning the gasket on the vent such that the first portion of the gasket is positioned along an intersection between the axial portion of the vent and the protrusion of the vent, and such that the second portion of the gasket is positioned along the protrusion of the vent; and inserting the vent into a hole of an application structure, wherein the application structure includes a first surface, and a second surface opposite the first surface, wherein the hole extends through the application structure in an axial direction from the first surface to the second surface, the hole defining an inner surface, wherein at least a portion of the inner surface is not perpen
  • the application structure includes a headlamp enclosure, a backlamp enclosure, an electronic control unit, or an electronic enclosure.
  • the exemplary embodiments described herein relate to vents configured for installation in holes in supporting application structures, and gaskets surrounding such vents and sealing against fluid ingress.
  • the exemplary embodiments relate to gaskets that provide sealing against fluid ingress when exposed to fluid at high pressures and/or high flow rates.
  • a venting system includes a vent and a gasket.
  • the vent is of a type that is suitable to reduce pressure fluctuations as well as to control humidity within electronic housings, while at the same preventing dirt, dust, and water from entering electronic housings.
  • the vent includes a water- vapor permeable, water-resistant membrane fixed to a support member, where the support member is inserted in an opening of an electronic housing such that the opening is closed by the membrane.
  • the gasket is positioned around the vent and between the vent and the housing so as to prevent air and/or water from entering the housing.
  • IPX9K test as codified in the ISO20653:2013 standard.
  • high-pressure water sprays are arranged at a distance of 10 cm to 15 cm from the venting system at angles of 0 degrees, 30 degrees, 60 degrees, and 90 degrees, and the vent is considered to fail the test if water passes through the vent and into the housing. Consequently, in order to pass this test, the venting system must be configured such that the water sprays do not pass directly through the vent and the sealing element resists water ingress, while the vent still provides for sufficient air exchange between the housing and the surrounding environment.
  • IPX6K test as codified in the ISO20653:2013 standard, which will be described in greater detail hereinafter.
  • the exemplary embodiments described herein provide venting systems including a vent and a gasket which, when used in combination and installed in a hole within an application structure (e.g., a housing to be sealed, such as a headlamp enclosure, a backlamp enclosure, an electronic control unit, or an electronic enclosure), provide sufficient protection water ingress to satisfy the IPX9K and/or the IPX6K rating described above.
  • Figure 1A illustrates a cross-sectional view of an exemplary venting system 10 including a vent 20 and a gasket 40, as positioned in an application structure 60.
  • Figure IB illustrates a cross-sectional view of the vent 20 and the application structure 60, in absence of the gasket 40, to provide a clearer view of certain elements of the vent 20 and the application structure 60.
  • the application structure 60 includes a first surface 62, a second surface 64, and a hole 66 extending from the first surface 62 to the second surface 64 into which the vent 20 is configured to be installed.
  • the hole 66 defines an inner surface 68.
  • At least a portion 70 of the inner surface 68 that is adjacent to the first surface 62 is shaped so as not to be perpendicular to the first surface 62.
  • the portion 70 includes a chamfer (e.g., a countersink) joining the first surface 62 to a further portion 72 of the hole 66 that is perpendicular to the first and second surfaces 62, 64.
  • the vent 20 includes an axial portion 22 configured to extend through the hole 66.
  • the axial portion 22 includes a first end 24 that is configured to be positioned proximate to the first surface 62 when the vent 20 is installed in the hole 66.
  • the axial portion 22 includes a second end 26 opposite the first end 24, which is configured to extend toward (e.g., to be positioned near or past) the second surface 64 when the vent 20 is installed in the hole 66.
  • a passage 28 extends through the axial portion 22 and is configured to provide venting therethrough as described above.
  • the vent 20 includes a protrusion 30 extending from the first end 24 of the axial portion 22 in a direction away from the passage 28. In some embodiments, the protrusion 30 extends from the first end 24 in an outward radial direction. In some embodiments, the vent 20 includes a fastening element 32 configured to secure the vent 20 in the hole 66. In the embodiment shown in Figures 1 A-1B, the fastening element 32 provides for a “snap fit” of the vent 20 in the hole 66.
  • the axial portion 22 of the vent 20 when the vent 20 is installed in the hole 66, (i) the axial portion 22 of the vent 20, (ii) the protrusion 30 of the vent 20, and (iii) the portion 70 of the application structure 60 cooperate to define a recess 80.
  • the axial portion 22 is generally cylindrical and has sides that are parallel to one another and perpendicular to the application structure 60.
  • the axial portion 22 is shaped differently (e.g., conical, tapered, etc.) and that the shape of the hole 66 in the application structure 60 is shaped accordingly.
  • the venting system 10 includes a gasket 40 that is configured to be positioned on and to extend around the axial portion 22 of the vent 20 adjacent the protrusion 30.
  • the gasket 40 includes a first portion 42 that is configured to be positioned within the recess 80 when the gasket 40 is positioned on the axial portion 22 of the vent 20 and the vent 20 is installed in the hole 66.
  • the first portion 42 of the gasket 40 is configured to at least partially fill the recess 80.
  • the first portion 42 of the gasket 40 is configured to partially fill the recess 80.
  • the first portion 42 of the gasket 40 is configured to completely fill the recess 80.
  • the first portion 42 is configured to contact the axial portion 22 of the vent 20, the protrusion 30 of the vent 20, and the portion 70 of the application structure 60 so as to seal the recess 80 and prevent water ingress therethrough.
  • the gasket 40 includes a second portion 44 extending from the first portion 42 so as to be configured to be positioned between the protrusion 30 of the vent 20 and the first surface 62 of the application structure 60 when the gasket 40 is positioned on the axial portion 22 of the vent 20 and the vent 20 is installed in the hole 66.
  • the second portion 44 is sized to be coextensive with the protrusion 30.
  • the second portion 44 is sized not to be coextensive with the protrusion 30 (e.g., to be larger than or to be smaller than the protrusion 30).
  • the second portion 44 is configured to contact the protrusion 30 of the vent 20 and the first surface 62 of the application structure 60 so as to prevent water ingress therebetween.
  • the gasket 40 includes a single piece of material that forms both the first portion 42 and the second portion 44.
  • the gasket 40 includes a first piece of a first material that forms the first portion 42 and a second piece of a second material that forms the second portion 44.
  • the first material and the second material are the same material.
  • the first material and the second material are different materials.
  • the second material is softer (e.g., more compressible) than the first material so as to allow the second portion 44 to be compressed between the protrusion 30 of the vent 20 and the first surface 62 of the application structure during installation of the vent 20 in the application structure 60.
  • the gasket 40 includes an un-filled thermoplastic material, an elastomer such as a natural rubber, a synthetic rubber, an unsaturated rubber (e.g., natural polyisoprene, synthetic polyisoprene, polybutadiene, chloroprene rubber, butyl rubber, styrene-butadiene rubber, or nitrile rubber), a saturated rubber (e.g., ethylene propylene rubber, ethylene propylene diene rubber, epichlorohydrin rubber, polyacrylic rubber, silicone rubber, fluorosilicone rubber, a fluoroelastomer, a perfluoroelastomer, a polyether block amide, chlorosulfonated polyethylene, or ethylene-vinyl acetate) or a thermoplastic elastomer (e.g., a styrenic block copolymer, a thermoplastic poly(ethylene-vinyl acetate) or a thermoplastic elastomer (e
  • the gasket 40 is positioned over the vent 20 but is not attached to the vent 20.
  • the gasket 40 extends around the axial portion 22 of the vent 20, and is retained in position between the vent 20 and the application structure 60 by the retention of the vent 20 to the application structure 60 (e.g., with reference to the embodiment shown in Figures 1A-1B, by the compression created by the snap fit engagement of the vent 20 to the application structure 60).
  • the gasket 40 is attached to the vent 20 (e.g., by adhesive bonding, by screwing, by press-fitting, or by welding).
  • the gasket 40 is attached to the vent 20 along both the axial portion 22 of the vent 20 and the protrusion 30 of the vent 20.
  • the vent 20 includes a recess to receive a respectively formed portion of the gasket 40, or vice versa, thereby to realize a snap fit between the vent 20 and the application structure 60.
  • the gasket 40 is overmolded to the vent 20.
  • FIGS 1 A and IB show a vent 20 having a fastening element 32 that is configured to provide for a snap fit between the venting system 10 and the hole 66 into which it is to be installed.
  • the fastening element 32 is configured to provide a different type of engagement/fit between the venting system 10 and the hole 66.
  • the fastening element 32 is configured to provide a screw fit (e.g., a threaded engagement) between the venting system 10 and the hole 66.
  • the fastening element 32 is configured to provide a press fit between the venting system 10 and the hole 66.
  • the fastening element 32 is configured to provide a bayonet fit between the venting system 10 and the hole 66.
  • the hole 66 is configured in an appropriate manner to provide for such a fit between the venting system 10 and the hole 66.
  • the fastening element 32 may include an external thread on the axial portion 22 of the vent 20 and the hole 66 may include a correspondingly sized internal thread to receive the fastening element 32.
  • Figures 1A and IB show the venting system 10 used in connection with a hole 66 having the non-perpendicular portion 70 that is angled so as to form a chamfer (e.g., a countersink) between the first surface 62 of the application structure 60 and the hole 66, thereby contributing to definition of the recess 80.
  • a chamfer e.g., a countersink
  • Figures 2A-2I show embodiments of an application structure having holes shaped differently than that shown in Figures 1 A and IB.
  • Figure 2 A shows an exemplary application structure 210 having a first surface 211, a second surface 212, and a hole 213 including a non-perpendicular portion 214 proximate to the first surface 211 and a perpendicular portion 215 proximate to the second surface 212.
  • the non-perpendicular portion 214 includes a convex curved region 216 proximate to the first surface 211 and an angled region 217 between the convex curved region 216 and the perpendicular portion 215.
  • Figure 2B shows an exemplary application structure 220 having a first surface 221, a second surface 222, and a hole 223 including a non-perpendicular portion 224 extending from the first surface 221 to the second surface 222.
  • the non-perpendicular portion 224 includes a first convex curved region 225 proximate to the first surface 221, a second convex curved region 226 proximate to the second surface 222, and an angled region 227 between the first convex curved region 225 and the second convex curved region 226.
  • Figure 2C shows an exemplary application structure 230 having a first surface 231, a second surface 232, and a hole 233 including a non-perpendicular portion 234 extending from the first surface 231 to the second surface 232.
  • the non-perpendicular portion 234 includes an angled region 235 proximate to the first surface 231 and a convex curved region 236 proximate to the second surface 232.
  • Figure 2D shows an exemplary application structure 240 having a first surface 241, a second surface 242, and a hole 243 including a non-perpendicular portion 244 extending from the first surface 241 to the second surface 242.
  • the non-perpendicular portion 244 includes an angled region 245 extending from the first surface 241 to the second surface 242.
  • an application structure includes a recess that is formed by a combination of perpendicular portions.
  • Figure 2E shows such an exemplary application structure 250.
  • the application structure 250 has a first surface 251, a second surface 252, and a hole 253.
  • the hole 253 includes a first perpendicular region 254 proximate to and perpendicular to the first surface 251 and a second perpendicular region 255 proximate to and perpendicular to the second surface 252.
  • the hole 253 also includes a shoulder region 256 that is parallel to the first surface 251 and the second surface 252, and which extends between the first perpendicular region 254 and the second perpendicular region 255.
  • the first perpendicular region 254 and the shoulder region 256, together with portions of a vent (not shown) installed in the hole 253, define a recess 257.
  • Figure 2E identifies the recess 257 on the left-hand side of the hole 253 as viewed in Figure 2E, but it will be apparent to those of skill in the art that the recess 257 extends about the entire perimeter of the hole 253.
  • Figure 2F shows an exemplary application structure 260 having a first surface 261, a second surface 262, and a hole 263.
  • the hole 263 includes a first perpendicular region 264 proximate to and perpendicular to the first surface 261 and a second perpendicular region 265 proximate to and perpendicular to the second surface 262.
  • the hole 263 also includes a shoulder region 266 that is parallel to the first surface 261 and the second surface 262, and which extends from the first perpendicular region 254, and an angled region 267 that extends from the shoulder region 266 to the second perpendicular region 265.
  • Figure 2F identifies the recess 268 on the left-hand side of the hole 263 as viewed in Figure 2F, but it will be apparent to those of skill in the art that the recess 268 extends about the entire perimeter of the hole 263 in embodiments of the application structure 260 having the recess 268.
  • the first perpendicular region 264, the shoulder region 266, and the angled region 267, together with portions of a vent (not shown) installed in the hole 263, define a recess 269, in which a first portion of a gasket is configured to be positioned.
  • Figure 2F identifies the recess 269 on the right-hand side of the hole 263 as viewed in Figure 2F, but it will be apparent to those of skill in the art that the recess 269 extends about the entire perimeter of the hole 263 in embodiments of the application structure 260 having the recess 269.
  • Figure 2G shows an exemplary application structure 270 having a first surface 271, a second surface 272, and a hole 273.
  • the hole 273 includes a non-perpendicular portion 274 proximate to the first surface 271 and a perpendicular portion 275 proximate to the second surface 272.
  • the non-perpendicular portion 274 includes an angled region 276 proximate to the first surface 271 and a shoulder region 277 extending from the angled region 276 to the perpendicular portion 275.
  • Figure 2H shows an exemplary application structure 280 having a first surface 281, a second surface 282, and a hole 283.
  • the hole 283 includes a non-perpendicular portion 284 proximate to the first surface 281 and a perpendicular portion 285 proximate to the second surface 282.
  • the non-perpendicular portion 284 includes a concave curved region 286 extending from the first surface 281 to the perpendicular portion 285.
  • Figure 21 shows an exemplary application structure 290 having a first surface 291, a second surface 292, and a hole 293.
  • the hole 293 includes a non-perpendicular portion 294 proximate to the first surface 291 and a perpendicular portion 295 proximate to the second surface 292.
  • the non-perpendicular portion 294 includes a convex curved region 296 extending from the first surface 291 to the perpendicular portion 295.
  • Figures 2 A shows an exemplary application structure 210 having a perpendicular portion 215, and Figures 2E-2I describe show other exemplary application structures having corresponding perpendicular portions.
  • perpendicular portions need not be strictly perpendicular, i.e., need not be angled at precisely 90 degrees to the respective first and second surfaces, such as the first surface 211 and second surface 212 of the application structure 210.
  • such portions are angled at an angle that is steep but not perpendicular, e.g., an angle between 85 degrees and 90 degrees.
  • Figures 1A and IB illustrate an exemplary embodiment of a gasket 40 having a first portion 42 and a second portion 44 that are configured to be combined with a vent 20 to form a venting system 10 in the manner described above. It will be apparent to those of skill in the art that the specific shape of the gasket 40 shown in Figures 1A and IB is only exemplary, and that other embodiments of gaskets having first portions and second portions similar to the first portion 42 and the second portion 44 described above are also possible without departing from the general concepts embodied by the gasket 40.
  • FIGs 1A and IB present schematic illustrations of a venting system 10 including a vent 20 and a gasket 40, wherein the gasket 40 includes first and second portions 42, 44 as described above. It will be apparent to those of skill in the art that other embodiments of venting systems are possible (e.g., embodiments having differently shaped gaskets) without departing from the general principles described above with reference to the embodiment of Figures 1A and IB.
  • Figures 3A and 3B illustrate a cross-section of exemplary embodiment of a venting system 310 including a vent 320 and a gasket 340.
  • the vent 320 includes an axial portion 322 and a protrusion 330.
  • the vent 320 includes a membrane 390 (see Figure 9).
  • the membrane 390 is air-permeable so as to allow air to be vented from one side of an application structure in which the vent 320 is installed to another side thereof. In some embodiments, the membrane 390 is water- impermeable. In some embodiments, the membrane 390 includes polytetrafluoroethylene (PTFE). In some embodiments, the membrane 390 includes expanded PTFE. In some embodiments, the membrane 390 includes a laminate having a nonwoven support layer. In Figure 3 A, the venting system 310 is shown positioned in a hole 366 of an application structure 360, whereby the axial portion 322, the protrusion 330, and portions of the hole 366 cooperate to form a recess 380.
  • PTFE polytetrafluoroethylene
  • the gasket 340 includes a first portion 342 that is configured to be positioned in the recess 380, and a second portion 344 that is configured to be positioned between the protrusion 330 and a first side 362 of the application structure 360.
  • the venting system 310 is shown positioned prior to installation in the hole 366. It may be seen from Figure 3B that the gasket 340 may have a first shape when “at rest” (i.e., when not compressed by installation in the hole 366) and a second shape when “active” (i.e., when compressed by installation in the hole 366, as shown in Figure 3A).
  • Figure 3A shows the gasket 340 compressed to a minimum compression level; it will be apparent to those of skill in the art that the venting system 310 could be installed so as to compress the gasket 340 to a higher degree, in which case the shape of the gasket 340 would vary accordingly.
  • Figure 3B shows the gasket in a down-bent shape due to the effect of gravity.
  • the gasket 340 may include (e.g., may be formed from) one or more compressible materials to facilitate such shaping.
  • FIG 4A illustrates a cross-section of an embodiment of a venting system 410 including a vent 420 and a gasket 440.
  • the vent 420 includes an axial portion 422 and a protrusion 430.
  • the venting system 410 is shown positioned in a hole 466 of an application structure 460, whereby the axial portion 422, the protrusion 430, and portions of the hole 466 cooperate to form a recess 480.
  • the gasket 440 includes a first portion 442 that is configured to be positioned in the recess 480, and a second portion 444 that is configured to be positioned between the protrusion 430 and a first side 462 of the application structure 460.
  • Figure 4B illustrates the gasket 440 of the venting system prior to installation in the hole 466. It may be seen from Figure 4B that the gasket 440 may have a first shape when “at rest” (i.e., when not compressed by installation in the hole 466) and a second shape when “active” (i.e., when compressed by installation in the hole 466). As discussed above, the gasket 440 may include (e.g., may be formed from) one or more compressible materials to facilitate such shaping.
  • FIGs 5A and 5B illustrate cross-sections of an embodiment of a venting system 510 including a vent 520 and a gasket 540.
  • the vent 520 includes an axial portion 522 and a protrusion 530.
  • the venting system 510 is shown positioned in a hole 566 of an application structure 560, whereby the axial portion 522, the protrusion 530, and portions of the hole 566 cooperate to form a recess 580.
  • the gasket 540 includes a first portion 542 that is configured to be positioned in the recess 580, and a second portion 544 that is configured to be positioned between the protrusion 530 and a first side 562 of the application structure 560.
  • the venting system 510 is shown positioned prior to installation in the hole 566. It may be seen from Figure 5B that the gasket 540 may have a first shape when “at rest” (i.e., when not compressed by installation in the hole 566) and a second shape when “active” (i.e., when compressed by installation in the hole 566). As discussed above, the gasket 540 may include (e.g., may be formed from) one or more compressible materials to facilitate such shaping.
  • FIGs 6 A and 6B illustrate cross-sections of an embodiment of a venting system 610 including a vent 620 and a gasket 640.
  • the vent 620 includes an axial portion 622 and a protrusion 630.
  • the venting system 610 is shown positioned in a hole 666 of an application structure 660, whereby the axial portion 622, the protrusion 630, and portions of the hole 666 cooperate to form a recess 680.
  • the gasket 640 includes a first portion 642 that is configured to be positioned in the recess 680, and a second portion 644 that is configured to be positioned between the protrusion 630 and a first side 662 of the application structure 660.
  • the venting system 610 is shown positioned prior to installation in the hole 666. It may be seen from Figure 6B that the gasket 640 may have a first shape when “at rest” (i.e., when not compressed by installation in the hole 666) and a second shape when “active” (i.e., when compressed by installation in the hole 666). As discussed above, the gasket 640 may include (e.g., may be formed from) one or more compressible materials to facilitate such shaping.
  • FIGS 3A-6B show embodiments of venting systems including corresponding vents and gaskets. It will be apparent to those of skill in the art that these exemplary venting systems are only four possible such embodiments, and that other exemplary embodiments of venting systems may include exemplary gaskets that may be shaped in any number of different manners and still be operative as described herein.
  • FIGS 3A-6B show venting systems 310, 410, 510, 610 including embodiments of gaskets 340, 440, 540, 640 having respective first portions 342, 442, 542, 642 and second portions 344, 444, 544, 644.
  • exemplary gaskets of venting systems may include additional portions that are configured (e.g., sized, shaped, and positioned) in a manner suited to the shape of the holes in which such venting systems are configured to be positioned.
  • Figures 7 A and 7B show an exemplary embodiment of a venting system 710 including such a gasket 740.
  • the venting system 710 includes a vent 720 and the gasket 740.
  • the vent 720 includes an axial portion 722 and a protrusion 730.
  • the venting system 710 is shown positioned in a hole 766 of an application structure 760.
  • the application structure 760 includes a first surface 762.
  • the hole includes a portion 770 that is not perpendicular to the first surface 762.
  • the portion 770 extends toward the first surface 762 at a more acute angle than, for example, the portion 70 shown in Figures 1A and IB.
  • the portion 770, the axial portion 722, and the protrusion 730 cooperate to define a recess 780.
  • the gasket 740 includes a first portion 742 that is configured to be positioned in the recess 780 in a location abutting the axial portion 722, a second portion 744 that is configured to be positioned between the protrusion 730 and the first surface 762, and a third portion 746 that is configured to be positioned in the recess 780 in a location between the first portion 742 and the second portion 744.
  • the third portion 746 is configured to fill additional space existing within the recess 780 due to the shape of the portion 770, as described above.
  • the venting system 710 is shown positioned prior to installation in the hole 766.
  • the gasket 740 may have a first shape when “at rest” (i.e., when not compressed by installation in the hole 766) and a second shape when “active” (i.e., when compressed by installation in the hole 766).
  • the gasket 740 may include (e.g., may be formed from) one or more compressible materials to facilitate such shaping.
  • Figures 7A and 7B show a gasket 740 including first, second, and third portions 742, 744, 746, but it will be apparent to those of skill in the art that a greater number of portions may be included in other embodiments, such as to compensate for recess geometry as noted above.
  • Figures 3A-7B show embodiments of venting systems having respective vents and gaskets, wherein the gaskets include second portions that are configured to be compressed between a protrusion of the respective vent and a first side of an application structure in which the venting system is installed.
  • the second portions of exemplary vents shown herein are only exemplary and that variations are possible without departing from the general concepts exemplified by the exemplary embodiments.
  • the second portion of a gasket may extend as far from the axial portion of the corresponding vent as does the protrusion of the respective vent, may extend not as far as the protrusion of the respective vent, or may extend past the protrusion of the respective vent.
  • Figure 8 shows an embodiment of a venting system 810 including a vent 820 having a protrusion 830, as well as a gasket 840 including a first portion 842 and a second portion 844, the venting system 810 being shown positioned in a hole 866 of an application structure 860.
  • the second portion 844 of the gasket 840 extends past the protrusion 830 of the vent 820.
  • application structures may include holes of various shapes, and venting systems may include vents and gaskets that are configured (e.g., sized and shaped) to be secured in such holes.
  • a hole as viewed along a longitudinal axis of the hole may be circular, polygonal (e.g., triangular, rectangular, square, hexagonal, etc.), elliptical, in the form of an elongated slot, etc.
  • a hole has straight sides (e.g., a rectangular hole)
  • the comers at which such sides join one another may be angled (e.g., a square hole having sides that meet at 90° angles) or may be rounded (e.g., a rectangular hole with rounded comers).
  • a venting system such as those described herein (e.g., the venting system 10, 310, 410, 510, 610, or 710) is installed in a hole in an application structure (e.g., the application structure 60, 360, 460, 560, 660, or 760) in a manner such that the corresponding gasket (e.g., the gasket 40, 340, 440, 540, 640, or 740) is compressed between the corresponding vent (e.g., the vent 20, 320, 420, 520, 620, or 720) and the application structure, the first portion of the gasket (e.g., the first portion 42, 342, 442, 542, 642, or 742) is compressed (e.g., subjected to a compressive force) that is applied in generally equal amounts in both a radial direction (e.g., a force toward the center line of the hole) and an axial direction (e.g., a force in a
  • the axial compressive force and the radial compressive force are equal to one another. In some embodiments, the axial compressive force and the radial compressive force are approximately equal to one another (e.g., within +/- 2.5%, or +/- 5%, or +/- 7.5%, or +/- 10%, or +/- 12.5%, or +/- 15%, or +/- 17.5%, or +/- 20%, or +/- 22.5%, or +/- 25%, or +/- 27.5%, or+/- 30%, or +/- 32.5%, or +/- 35%, or +/- 37.5%, or+/- 40%, or +/- 42.5%, or +/- 45%, or +/- 47.5%, or +/- 50%).
  • the axial compressive force and the radial compressive force are approximately equal to one another (e.g., within +/- 2.5%, or +/- 5%, or +/- 7.5%, or +/- 10%, or +/- 12.5%, or +
  • a venting system such as those described herein (e.g., the venting system 10, 310, 410, 510, 610, or 710) is installed in a hole in an application structure (e.g., the application structure 60, 360, 460, 560, 660, or 760) in a manner such that the corresponding gasket (e.g., the gasket 40, 340, 440, 540, 640, or 740) is compressed between the corresponding vent (e.g., the vent 20, 320, 420, 520, 620, or 720) and the application structure, the second portion of the gasket (e.g., the second portion 44, 344, 444, 544, 644, or 744) is compressed (e.g., subjected to a compressive force) that is only in the axial direction.
  • the corresponding gasket e.g., the gasket 40, 340, 440, 540, 640, or 740
  • the second portion of the gasket e.g
  • a venting system such as those described herein (e.g., the venting system 10, 310, 410, 510, 610, or 710) is installed in a hole in an application structure (e.g., the application structure 60, 360, 460, 560, 660, or 760) in a manner such that the corresponding gasket (e.g., the gasket 40, 340, 440, 540, 640, or 740) is compressed between the corresponding vent (e.g., the vent 20, 320, 420, 520, 620, or 720) and the application structure, the second portion of the gasket (e.g., the second portion 44, 344, 444, 544, 644, or 744) is compressed in both the axial direction and the radial direction, in a manner such that the axial compressive force is significantly greater than the radial compressive force (e.g., the axial compressive force equal to the radial compressive force multiplied by at least 2, or by
  • a venting system such as those described herein when a venting system such as those described herein is in use, it may be exposed to water or other liquids impacting the vent at high pressure, at high temperature, and from a variety of directions, ranging from in an axial direction to in a radial direction, and the venting system, to perform sufficiently, must prevent water ingress when subjected to such conditions.
  • testing such as the IPX6K and IPX9K tests codified in the ISO20653:2013 standard simulates such exposure.
  • the exemplary gaskets include a portion (e.g., the second portions 44, 344, 444, 544, 644, and 744 described above) that is compressed exclusively or primarily in the axial direction, such gaskets maintain an adequate seal when exposed to high-pressure liquid that is applied primarily or exclusively in a radial direction.
  • Figure 9 shows the venting system 310 of Figures 3 A and 3B, shown in a manner subject to exposure to high-pressure liquid applied in a radial direction from the right side as shown in Figure 9.
  • a venting system as described herein provides sufficient sealing to pass IPX6K testing. In some embodiments, a venting system as described herein provides sufficient sealing to pass IPX9K testing.
  • Example 1 An exemplary venting system (Example 1) and a commercially available venting system (Comparative Example A).
  • Comparative Example A was the venting system commercialized by W.L. Gore & Associates, Inc., of Newark, Delaware under part number AMF300200.
  • Example 1 included the same vent as Comparative Example A, and included a gasket as shown in Figures 3A-3B in place of the gasket forming part of Comparative Example A.
  • Figure 10A shows a side view photograph of the gasket tested as part of Example 1.
  • Figure 10B shows a photograph of the gasket tested as part of Example 1, with the vent and gasket being cut away so as to view a cross- section of the gasket.
  • Example 1 and Comparative Example A were tested using a test setup that included a plain surface without any protective geometry.
  • the test results to be described hereinafter demonstrate the exceptional performance of the inventive venting system in comparison to a comparative example that is a commercially successful product, and which satisfies the IPX6K and IPX9K ratings when implemented with protective geometry as discussed above.
  • the testing process included testing in accordance with the IPX9K rating as defined in the ISO20653:2013 standard. Such testing is operative to demonstrate that water directed toward a tested device from any direction will not have any harmful effects or impair performance.
  • water is sprayed at a test sample from a distance of 100 to 150 millimeters. Water is sprayed sequentially from four sources: at 90 degrees (i.e., perpendicularly downward onto the sample) 60 degrees, 30 degrees, and 0 degrees (i.e., horizontally toward the sample).
  • the water is at a flow rate of 14 to 16 liters per minute, at a pressure of 8,000 to 10,000 kPa, at a temperature of 80° C ⁇ 5° C, for an exposure time of 30 seconds per source.
  • IPX9K testing was performed on seventeen (17) test samples of Example 1 as described above. For all tested samples of Example 1, no water was found to pass through the test samples. Thus, all test samples of Example 1 were deemed to satisfy the IPX9K rating, even when tested without protective geometry as noted above. IPX9K testing was also performed on seventeen (17) test samples of Comparative Example A as described above. For all tested samples of Comparative Example A, water was found to pass through the test samples.
  • Example 1 As discussed above, testing conducted on Example 1 demonstrated satisfaction of the IPX9K rating by a venting system as shown in Figures 3A-3B. In alternative embodiments shown in Figures 4A-8, such venting systems also satisfy the IPX9K rating.
  • the testing process also included testing in accordance with the IPX6K rating as defined in the ISO20653:2013 standard. Such testing is operative to demonstrate that water that is directed toward a tested device from any direction as a strong jet with increased pressure will not have any harmful effects or impair performance.
  • water is sprayed at a test sample from a distance of 2.5 to 3 meters. Water is sprayed from a nozzle 6.3 mm in diameter at a flow rate of 75 liters per minute ⁇ 5%, at a pressure of 1,000 kPa, at a temperature that is within 5° C of the temperature of the test sample, for an exposure time of at least 3 minutes.
  • IPX6K testing was performed on seventeen (17) test samples of Example 1 as described above. For all tested samples of Example 1, no water was found to pass through the test samples. Thus, all test samples of Example 1 were deemed to satisfy the IPX6K rating, even when tested without protective geometry as noted above. IPX6K testing was also performed on seventeen (17) test samples of Comparative Example A as described above. For all tested samples of Comparative Example A, water was found to pass through the test samples. Specifically, failure of Comparative Example A when tested without protective geometry occurred due to failure of the gasket thereof (e.g., due to gasket deformation as described above).
  • Example 1 As discussed above, testing conducted on Example 1 demonstrated satisfaction of the IPX6K rating by a venting system as shown in Figures 3A-3B. In alternative embodiments shown in Figures 4A-8, such venting systems also satisfy the IPX6K rating.

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Gasket Seals (AREA)

Abstract

La présente invention concerne un système comprenant un évent destiné à être introduit dans une structure d'application dans une direction axiale, la structure d'application comprenant une première surface traversée par un trou, le trou formant une surface interne ayant une partie non perpendiculaire ; l'évent comprenant une partie axiale s'étendant d'une première extrémité à une seconde extrémité et configurée pour s'étendre à travers le trou, et une saillie s'étendant à partir de la première extrémité dans une direction radiale ; le système comprenant un joint d'étanchéité comprenant une première partie et une seconde partie qui prolonge la première ; la première partie du joint d'étanchéité étant comprimée à la fois dans la direction radiale et dans la direction axiale, la seconde partie du joint d'étanchéité étant comprimée par une force de compression axiale qui est supérieure à une force de compression radiale, l'évent et le joint d'étanchéité coopérant pour fournir une protection contre les infiltrations d'eau satisfaisant un indice IPX9K, conformément à un protocole de test de la norme ISO20653 : 2013.
PCT/IB2021/000100 2021-02-22 2021-02-22 Évent et joint d'étancheité de protection contre les infiltrations d'eau à haute pression WO2022175701A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/IB2021/000100 WO2022175701A1 (fr) 2021-02-22 2021-02-22 Évent et joint d'étancheité de protection contre les infiltrations d'eau à haute pression

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2021/000100 WO2022175701A1 (fr) 2021-02-22 2021-02-22 Évent et joint d'étancheité de protection contre les infiltrations d'eau à haute pression

Publications (1)

Publication Number Publication Date
WO2022175701A1 true WO2022175701A1 (fr) 2022-08-25

Family

ID=75111629

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2021/000100 WO2022175701A1 (fr) 2021-02-22 2021-02-22 Évent et joint d'étancheité de protection contre les infiltrations d'eau à haute pression

Country Status (1)

Country Link
WO (1) WO2022175701A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2560469A1 (fr) * 2011-08-18 2013-02-20 W.L.Gore & Associates Gmbh Dispositif de ventilation comportant une protection par scellage
US20130055898A1 (en) * 2011-05-19 2013-03-07 Nitto Denko Corporation Vent structure
EP2784385A1 (fr) * 2013-03-26 2014-10-01 Nitto Denko Corporation Élément de ventilation
US20170196105A1 (en) * 2014-05-28 2017-07-06 Nitto Denko Corporation Metal housing and ventilation structure employing same
WO2019135399A1 (fr) * 2018-01-04 2019-07-11 日東電工株式会社 Kit de tubage et élément de ventilation

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130055898A1 (en) * 2011-05-19 2013-03-07 Nitto Denko Corporation Vent structure
EP2560469A1 (fr) * 2011-08-18 2013-02-20 W.L.Gore & Associates Gmbh Dispositif de ventilation comportant une protection par scellage
EP2784385A1 (fr) * 2013-03-26 2014-10-01 Nitto Denko Corporation Élément de ventilation
US20170196105A1 (en) * 2014-05-28 2017-07-06 Nitto Denko Corporation Metal housing and ventilation structure employing same
WO2019135399A1 (fr) * 2018-01-04 2019-07-11 日東電工株式会社 Kit de tubage et élément de ventilation

Similar Documents

Publication Publication Date Title
US6768058B2 (en) Self-sealing grommet assembly
KR20180002160A (ko) 기밀한 노즐 구조를 갖는 복합재 용기
JP5900166B2 (ja) 圧縮機のポート閉塞装置
JPWO2018199238A1 (ja) 通気ユニット
US20140345709A1 (en) Mounting configuration for valve assembly
JP6903025B2 (ja) 流体デバイス
JP2019514225A (ja) 通気口
KR102651907B1 (ko) 라인 밀봉부 및 진동 감쇠기
JP2016534292A (ja) ベントシステム
WO2022175701A1 (fr) Évent et joint d'étancheité de protection contre les infiltrations d'eau à haute pression
KR100666109B1 (ko) 연결구
JPH1064630A (ja) コネクタハウジングの取り付け構造
JP2007192270A (ja) 管継手構造
US8602064B2 (en) Fluid passage closure system in compressor
CN115443391B (zh) 用于加压气体储罐的基部
KR101857027B1 (ko) 스프링밴드 밀폐형 원터치 배관 커플러
JP2024502905A (ja) 非常用脱気装置
KR101586171B1 (ko) 배관연결구
KR970001571Y1 (ko) 밸브장치용 실패킹
CN219063608U (zh) 空调室外机和空调器
WO2018003982A1 (fr) Clapet anti-retour
JP2005076478A (ja) デリバリパイプ
CN212804642U (zh) 压缩机高压密封装置
KR101500508B1 (ko) 파이프용 패킹 및 이를 이용한 파이프 연결구
KR200359542Y1 (ko) 배관 유니언 연결부의 기밀 유지 및 유로의 간섭 방지대책이 강구된 패킹

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21713462

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 21713462

Country of ref document: EP

Kind code of ref document: A1