EP4334148A1 - Element vitre pour l'isolation acoustique d'un véhicule - Google Patents
Element vitre pour l'isolation acoustique d'un véhiculeInfo
- Publication number
- EP4334148A1 EP4334148A1 EP22724826.7A EP22724826A EP4334148A1 EP 4334148 A1 EP4334148 A1 EP 4334148A1 EP 22724826 A EP22724826 A EP 22724826A EP 4334148 A1 EP4334148 A1 EP 4334148A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- temperature
- insulation layer
- acoustic
- acoustic insulation
- regulator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J1/00—Windows; Windscreens; Accessories therefor
- B60J1/001—Double glazing for vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J1/00—Windows; Windscreens; Accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J1/00—Windows; Windscreens; Accessories therefor
- B60J1/20—Accessories, e.g. wind deflectors, blinds
- B60J1/2097—Accessories, e.g. wind deflectors, blinds means to prevent rattling of vehicle windows
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
- B32B17/10036—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising two outer glass sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
- B32B17/10761—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing vinyl acetal
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B1/00—Details of electric heating devices
- H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
- H05B1/0227—Applications
- H05B1/023—Industrial applications
- H05B1/0236—Industrial applications for vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/03—3 layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2305/00—Condition, form or state of the layers or laminate
- B32B2305/34—Inserts
- B32B2305/345—Heating elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/10—Properties of the layers or laminate having particular acoustical properties
- B32B2307/102—Insulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/51—Elastic
Definitions
- TITLE GLASS ELEMENT FOR SOUND INSULATION OF A VEHICLE
- the present invention relates to a glazed element comprising a laminated glazing for a vehicle, and more particularly a laminated glazing having sound insulation properties.
- Laminated glazing may comprise two sheets of glass and an interlayer, for example an interlayer formed of poly(vinyl butyral) (acronym PVB), separating the two sheets of glass.
- the PVB interlayer is ductile, so cracks in one glass sheet are not transmitted to the other glass sheet.
- document FR 2 990 948 describes laminated glazing, in which the interlayer comprises two outer layers of PVB, and an inner layer, called “acoustic”, arranged between the two outer layers, the inner layer having properties vibro-acoustic damping properties superior to the vibro-acoustic damping properties of the two outer layers.
- a material of the inner layer has a loss factor tand higher than the loss factor of a material of the outer layers.
- curve (a) illustrates a loss of acoustic transmission (STL) of a known laminated glazing comprising an acoustic interlayer, at a temperature of 20° C.
- curve (b) illustrates a loss acoustic transmission of the same known laminated glazing comprising an acoustic interlayer, at a temperature of 13°C.
- An object of the invention is to propose a solution to avoid the reduction in the loss of acoustic transmission of laminated glazing when the ambient temperature varies.
- a glazed element for a vehicle comprising a laminated glazing, the laminated glazing comprising two sheets of glass and an acoustic insulation layer formed by a viscoelastic material and arranged between the two sheets of glass, the glazed element comprising a device for measuring the temperature of the acoustic layer.
- the glazed element includes a device for conditioning the temperature of the acoustic insulation layer
- the glazed element comprises a closed-loop servo-control regulator, the device for measuring the temperature of the acoustic insulation layer being able to measure a temperature of the acoustic insulation layer and to transmit information on the temperature of the the acoustic insulation layer to the regulator, and the regulator being capable of transmitting regulation information to the device for conditioning the temperature of the acoustic insulation layer,
- the glazed element comprises a control unit configured to control a measurement of a temperature of the acoustic insulation layer by the temperature measuring device, to transmit the information of the temperature of the acoustic insulation layer to the regulator, determining a value representative of a difference between the temperature of the acoustic insulation layer and between a setpoint temperature, preferably a predetermined optimal acoustic temperature, controlling the determination of regulation information by the regulator from the value representing the difference, and transmitting the regulation information to the device for conditioning the temperature of the acoustic insulation layer,
- the laminated glazing has a critical frequency f c
- the viscoelastic material has a maximum loss frequency f p for which a loss factor tand is maximum in a frequency range between 50 Hz and 10 kHz for a predetermined temperature of the viscoelastic material , the predetermined optimum acoustic temperature being equal to a temperature for which the critical frequency f c is equal to the frequency f p of maximum loss,
- the viscoelastic material has a maximum tand loss factor greater than 0.6 in a temperature range between 10°C and 60°C and in a frequency range between 50 Hz and 10 kHz, the material preferably having a value of the real part of Young's modulus E' less than 5.8.10 7 N.cm 2 in a range of temperatures between 10°C and 60°C and in a range of frequencies between 50 Hz and 10 kHz,
- the laminated glazing comprises a first outer face and a fourth outer face opposite the first face
- the device for measuring the temperature of the acoustic layer comprises a first sensor configured to measure the temperature of the first face and a second sensor configured to measure the temperature of the fourth side.
- Another aspect of the invention is a method of acoustic insulation of a glazed element, the glazed element being a glazed element according to one embodiment of the invention, the glazed element further comprising a device for conditioning of the temperature of the acoustic insulation layer and a controller by closed-loop feedback, the device for measuring the temperature of the acoustic insulation layer being adapted to measure a temperature of the acoustic insulation layer and to transmit information on the temperature of the acoustic insulation layer to the regulator, the regulator being capable of transmitting regulation information to the device for conditioning the temperature of the acoustic insulation layer, the method comprising the steps of: a) measuring of a temperature of the acoustic insulation layer by the temperature measuring device, b) transmission of the information on the temperature of the acoustic insulation layer to the regulator, c) determination of a value representative of a difference between the temperature of the acoustic insulation layer and between a set temperature, preferably an optimum acoustic temperature pre determined,
- the glazing has a critical frequency f c
- the viscoelastic material has a maximum loss frequency f p for which a loss factor tand is maximum in a frequency range between 50 Hz and 10 kHz for a temperature of the predetermined viscoelastic material , the predetermined optimum acoustic temperature being equal to a temperature for which the critical frequency f c is equal to the frequency f p of maximum loss.
- the regulation information is also determined from information associated with at least one element chosen from a hygrometry inside the vehicle, a temperature inside the vehicle, and information on the presence of mist on the laminated glazing.
- FIG. 1 - Figure 1 schematically illustrates a loss of acoustic transmission of a known laminated glazing comprising a layer of acoustic insulation at a temperature of 20° C, and a loss of acoustic transmission of the same laminated glazing at a temperature of 20° C
- FIG. 2 - Figure 2 schematically illustrates a glazed element according to one embodiment of the invention
- FIG. 3 schematically illustrates the temperature dependence of the laminated glazing of the loss factor tand of the acoustic layer of a glazed element according to one embodiment of the invention
- FIG. 4 schematically illustrates a method according to one embodiment of the invention.
- Cross frequency f c of a laminated glazing is understood to mean the frequency for which the phase velocity in bending of the laminated glazing is equal to the phase velocity of an acoustic wave incident on the laminated glazing.
- the term "loss factor tand" of a material means the material having a complex Young's modulus E, the ratio between the imaginary part E” of the Young's modulus of the material and the real part E' of the modulus of Young of the material.
- the loss factor t t of a material is defined by the international standard ISO 18437-2:2005 (Mechanical vibration and shock — Characterization of the dynamic mechanical properties of visco-elastic materials — Part 2: Resonance method, part 3.2).
- a dynamic characterization of a material is carried out on a viscoanalyzer of the Metravib viscoanalyzer type, under the following measurement conditions, to determine the real part E' and the imaginary part E' of the Young's modulus.
- a sinusoidal stress is applied to the material.
- a measurement sample formed by the material to be measured consists of two rectangular parallelepipeds, each parallelepiped having a thickness of 3.31 mm, a width of 10.38 mm and a height of 6.44 mm.
- Each parallelepiped formed by the material is also designated by the term “shear specimen”.
- the excitation is implemented with a dynamic amplitude of 6.5 pm around the rest position, by traversing the range of frequencies between 5 Hz and 700 Hz, and by traversing a range of temperatures between -20° C and +60°C.
- the viscoanalyzer makes it possible to subject each specimen (each sample) to deformations under precise conditions of temperature and frequency, and to measure the displacements of the specimen, the forces applied to the specimen and their phase shift, which makes it possible to measure rheological quantities characterizing the material of the specimen.
- the exploitation of the measurements makes it possible in particular to calculate the Young's modulus E of the material, and particularly the real part E' of the Young's modulus and the imaginary part E” of the Young's modulus of the material, and thus to calculate the tangent the loss angle (or loss factor) tanô.
- laminated glazing means a glazed assembly comprising at least two sheets of glass and an intermediate film formed of plastic material, preferably viscoelastic, separating the two sheets of glass.
- the interlayer plastic film may comprise one or more layers of a viscoelastic polymer such as poly(vinyl butyral) (PVB) or an ethylene-vinyl acetate copolymer (EVA).
- PVB poly(vinyl butyral)
- EVA ethylene-vinyl acetate copolymer
- the interlayer film is preferably standard PVB and/or acoustic PVB (such as single-layer or three-layer acoustic PVB).
- Acoustic PVB can consist of three layers: two outer layers of standard PVB and one inner layer less rigid than the outer layers.
- the internal layer can be formed by a material comprising a proportion of plasticizer greater than the proportion of plasticizer of the material of the two external layers.
- the inner layer may have a loss factor greater than the loss factor of each of the two outer layers.
- the inner layer may, for example, comprise PVB.
- a glazed element 1 for a vehicle comprises a laminated glazing 2.
- the laminated glazing 2 comprises a first sheet of glass 3, a second sheet of glass 4 and an acoustic insulation layer 5 formed by a material viscoelastic.
- the acoustic insulation layer 5 is arranged between the first sheet of glass 3 and the second sheet of glass 4.
- the glazed element 1 comprises a device for measuring the temperature 6 of the acoustic layer 5.
- the first sheet of glass 3 comprises a first face F1, the first face F1 being an outer face of the laminated glazing 2.
- the first sheet of glass 3 comprises a second face F2 arranged on the side of the acoustic insulation layer 5 with respect to the first glass sheet 3, and opposite the first face F1 relative to the first glass sheet 3.
- the second glass sheet 4 comprises a third face F3 arranged on the side of the acoustic insulation layer 5 relative to the second glass sheet 3.
- the second glass sheet 4 comprises a fourth face F4, the fourth face F4 being an outer face of the laminated glazing 2, and being opposite the third face F3 with respect to the second glass sheet 4.
- the laminated glazing 2 may comprise an interlayer 12, the interlayer 12 comprising the acoustic insulation layer 5.
- the interlayer 12 may comprise two external plastic layers 13, for example formed from PVB, the acoustic insulation layer 5 being arranged between the two outer layers 13 plastics.
- the acoustic insulation layer 5 can be formed by a viscoelastic material has a maximum tand loss factor greater than 0.6 in a temperature range between 10° C. and 60° C. and in a frequency range between 50 Hz and 10kHz.
- the material has a value of the real part of the Young's modulus E′ of less than 5.8 ⁇ 10 7 N.cm 2 in a temperature range between 10° C. and 60° C. and in a frequency range between between 50Hz and 10kHz.
- the acoustic insulation layer 5 may for example be formed from a PVB resin having a mass content of plasticizer greater than 50%, and preferably greater than 60%.
- the outer plastic layers 12 may for example be formed from a PVB resin having a plasticizer mass content of less than 25%, and preferably between 18% and 22%.
- the temperature measuring device 6 is configured to measure the temperature of the acoustic layer 5.
- the temperature measuring device 6 can comprise a sensor arranged directly in contact with the acoustic layer 5, so as to directly measure the temperature of the acoustic layer 5.
- the temperature measuring device 6 can comprise a film or a wire formed of an electrically conductive material, arranged between the acoustic layer 5 and the first sheet of glass 3 or the second sheet of glass 4, and preferably arranged on the second face F2. The measurement of the conductivity of the film or of the wire of electrically conductive material makes it possible to measure the temperature of the film or of the wire of conductive material.
- the device for measuring the temperature 6 of the acoustic layer 5 can comprise a first sensor 10 configured to measure the temperature of the first face F1 and a second sensor 11 configured to measure the temperature of the fourth face F4 .
- the glazed element 1 can comprise a control unit configured to determine the temperature of the acoustic layer 5 from information on the temperature of the first face F1 transmitted by the first sensor 10 to the control unit, and information on the temperature of the fourth face F4 transmitted by the second sensor 11 to the control unit .
- the control unit determines the temperature of the acoustic layer 5 from the information transmitted by the first sensor 10 and by the second sensor 11 by a calculation implementing a thermal conduction model in the laminated glazing 2.
- the thermal conduction model can be representative of at least one element chosen from among the temperature of the first face F1, the thermal resistance of the first sheet of glass 3, the thermal resistance of the acoustic insulation layer 5, the thermal resistance of the intermediate layer 12, the thermal resistance of the second sheet of glass, and the temperature of the fourth face F4.
- the thermal conduction model can also be representative of the thermal transfer through the layers forming the laminated glazing.
- the first sensor 10 and/or the second sensor 11 can be chosen at least from a thermocouple, an infrared sensor and an internal and/or external temperature sensor in the passenger compartment of the vehicle.
- the first sensor 10 and/or the second sensor 11 can comprise a film or a wire formed from an electrically conductive material, arranged between the first sheet of glass 3 and the second sheet of glass 4, or on the first face F1, or on the second face F4.
- the measurement of the conductivity of the film or of the wire of electrically conductive material makes it possible to measure the temperature of the film or of the wire of conductive material.
- the first sensor 10 and/or the second sensor 11 can be arranged on the first face F1 and/or on the second face F4.
- the first sensor 10 and/or the second sensor 11 can be arranged in a casing formed by the mirror, the mirror being fixedly mounted on the fourth face F4.
- the inventors have characterized the dependence of the loss factor tand of the acoustic layer 5 on the temperature of the laminated glazing 2.
- the curve (c) illustrates the evolution of the loss factor tand as a function of the frequency of an acoustic wave incident on the laminated glazing 2, for a temperature equal to 20°C.
- Curve (d) illustrates the evolution of the tanô loss factor as a function of the frequency of an acoustic wave incident on the laminated glazing for a temperature equal to 10°C.
- Curve (c) and curve (d) each show a frequency f p of maximum loss for which the loss factor tanô is maximum in a frequency range between 50 Hz and 10 kHz, for a temperature of the viscoelastic material predetermined.
- the acoustic insulation of the laminated glazing 2 is maximum when the frequency f p is equal to the critical frequency f c of the laminated glazing 2.
- a difference between the frequency f p and the critical frequency f c may increase.
- the glazed element 1 comprising a device for measuring the temperature 6 of the acoustic layer 5 makes it possible to obtain information on the frequency f p , with a view to reducing the difference between the frequency f p and the frequency f c of the laminated glazing 2.
- the glazed element 1 may include a temperature conditioning device 7 of the sound insulation layer 5.
- the temperature conditioning device 7 may be a layer and / or a wire formed by an electrically conductive material.
- the conditioning of the temperature can be implemented by applying an electric potential to the terminals of the layer or of the wire by Joule effect.
- the layer and/or the wire can be arranged between the second face F2 and the acoustic insulating layer 5, and/or between the acoustic insulating layer 5 and the third face F3.
- the temperature conditioning device 7 may comprise a vehicle cabin temperature conditioning device.
- the temperature conditioning device 7 can include the heating, ventilation and air conditioning system of the vehicle (acronym HVAC).
- the glazed element 1 may include a regulator 8 by closed loop control.
- the regulator 8 is a proportional, integral and derivative regulator (acronym PID).
- the device 6 for measuring the temperature of the acoustic insulation layer 5 can be able to measure a temperature of the acoustic insulation layer 5 and to transmit information on the temperature of the acoustic insulation layer 5 to the regulator 8
- the regulator 8 can be capable of transmitting regulation information to the device 7 for conditioning the temperature of the acoustic insulation layer 5.
- the control unit of the glazed element 1 can be configured to control a measurement of a temperature of the acoustic insulation layer 5 by the temperature measuring device 6, and to transmit the information of the temperature of the sound insulation layer 5 to regulator 8.
- the glazed element control unit 1 can be configured to determine a value representative of a difference between the temperature of the acoustic insulation layer 5 and between a setpoint temperature T s , preferably an optimum acoustic temperature T predetermined opt .
- the control unit of the glazed element 1 can be configured to control the determination of regulation information by the regulator 8 from the value representative of a previously determined difference, and to transmit the regulation information to the device for conditioning the temperature 7 of the acoustic insulation layer 5.
- the control unit of the glazed element 1 can be configured to control the determination of regulation information by the regulator 8 from the value representative of a previously determined difference, and to transmit the regulation information to the device for conditioning the temperature 7 of the acoustic insulation layer 5.
- the predetermined optimum acoustic temperature T opt is equal to a temperature for which the critical frequency f c is equal to the frequency f p of maximum loss.
- the setpoint temperature 7 S is within a temperature range between (T op r 4°C) and (7 0pt+ 4 o C), in particular in a temperature range between (T opt ⁇ 2° C.) and (T opt+ 2° C.) and more preferably, the setpoint temperature 7 S is equal to the optimum temperature T opt .
- another aspect of the invention is a method 400 of acoustic insulation of a glazed element 1.
- the method 400 comprises a first step 401 of measuring a temperature of the acoustic insulation layer by the temperature measuring device 6.
- the method 400 includes a second step 402 of transmitting information on the temperature of the acoustic insulation layer 5 to the regulator 8.
- the method 400 comprises a third step 403 of determining a value representative of a difference between the temperature of the acoustic insulation layer 5 and between the set temperature T s , preferably the predetermined optimum acoustic temperature T opt .
- the method 400 includes a fourth step 404 of determining regulation information by the regulator 8 from the value representative of the difference.
- the method 400 includes a fifth step 405 of transmitting the regulation information to the temperature conditioning device 7 of the acoustic insulation layer 5.
- the temperature T opt for which the frequency f p of maximum loss of the acoustic insulation layer 5 is equal to the critical frequency f c of the laminated glazing 2, is lower at the dew temperature on the fourth face F4.
- the regulation information is also determined from information associated with at least one element chosen from a hygrometry inside the vehicle, a temperature inside the vehicle, a temperature of the fourth face F4 and information on the presence of fog on the laminated glazing 2.
- the setpoint temperature 7 S can be greater than or equal to the dew point temperature.
- the process for removing the mist may comprise a step of conditioning the temperature and/or conditioning the hygrometry on the fourth face F4 so that the dew temperature on the fourth face F4 is lower than the optimum temperature T -opt .
- the process for removing the mist may comprise a step of conditioning the temperature and/or conditioning the hygrometry in the passenger compartment of the vehicle so that the dew temperature on the fourth face F4 is lower than the temperature optimal T opt .
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joining Of Glass To Other Materials (AREA)
- Laminated Bodies (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2104800A FR3122612B1 (fr) | 2021-05-06 | 2021-05-06 | Element vitre pour l’isolation acoustique d’un véhicule |
| PCT/FR2022/050870 WO2022234236A1 (fr) | 2021-05-06 | 2022-05-06 | Element vitre pour l'isolation acoustique d'un véhicule |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4334148A1 true EP4334148A1 (fr) | 2024-03-13 |
Family
ID=76601394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22724826.7A Pending EP4334148A1 (fr) | 2021-05-06 | 2022-05-06 | Element vitre pour l'isolation acoustique d'un véhicule |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20240227513A1 (fr) |
| EP (1) | EP4334148A1 (fr) |
| KR (1) | KR20240004628A (fr) |
| CN (1) | CN115589779A (fr) |
| FR (1) | FR3122612B1 (fr) |
| WO (1) | WO2022234236A1 (fr) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3146292A1 (fr) * | 2023-03-03 | 2024-09-06 | Saint-Gobain Glass France | Intercalaire acoustiquement isolant |
| FR3153559B1 (fr) * | 2023-09-29 | 2025-09-26 | Saint Gobain | Intercalaire pour un vitrage acoustiquement isolant |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8181738B2 (en) * | 2007-04-24 | 2012-05-22 | Serious Energy, Inc. | Acoustical sound proofing material with improved damping at select frequencies and methods for manufacturing same |
| MX2009012444A (es) * | 2007-05-24 | 2009-12-01 | Saint Gobain | Elemento de vidriado acustico. |
| JP5258542B2 (ja) * | 2008-12-24 | 2013-08-07 | 積水化学工業株式会社 | 合わせガラス用中間膜及び合わせガラス |
| FR2947257B1 (fr) * | 2009-06-30 | 2011-06-24 | Saint Gobain | Procede de fabrication d'un element de vitrage feuillete |
| FR2990948B1 (fr) | 2012-05-22 | 2019-08-30 | Saint-Gobain Glass France | Intercalaire plastique viscoelastique pour un amortissement vibro-acoustique et vitrage comprenant un tel intercalaire |
| US10252492B2 (en) * | 2014-02-14 | 2019-04-09 | Nippon Sheet Glass Company, Limited | Laminated glass |
| JP6907234B2 (ja) * | 2016-05-09 | 2021-07-21 | クラレ・アメリカ・インコーポレイテッド | 多層中間膜及び合わせガラス |
| CN111448063A (zh) * | 2017-12-07 | 2020-07-24 | Agp美洲股份公司 | 具有改善的低温响应的功能层的夹层玻璃 |
| CN112154065A (zh) * | 2019-04-29 | 2020-12-29 | 法国圣戈班玻璃厂 | 具有可电控光学性能的复合玻璃板以及复合玻璃板装置 |
-
2021
- 2021-05-06 FR FR2104800A patent/FR3122612B1/fr active Active
-
2022
- 2022-05-06 CN CN202280004156.XA patent/CN115589779A/zh active Pending
- 2022-05-06 KR KR1020237040678A patent/KR20240004628A/ko active Pending
- 2022-05-06 WO PCT/FR2022/050870 patent/WO2022234236A1/fr not_active Ceased
- 2022-05-06 EP EP22724826.7A patent/EP4334148A1/fr active Pending
- 2022-05-06 US US18/558,847 patent/US20240227513A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US20240227513A1 (en) | 2024-07-11 |
| CN115589779A (zh) | 2023-01-10 |
| KR20240004628A (ko) | 2024-01-11 |
| FR3122612A1 (fr) | 2022-11-11 |
| WO2022234236A1 (fr) | 2022-11-10 |
| FR3122612B1 (fr) | 2024-07-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2806531C (fr) | Procede de selection d'un intercalaire pour un amortissement vibro-acoustique, intercalaire et vitrage comprenant un tel intercalaire | |
| EP0387148B1 (fr) | Vitrage de protection acoustique pour véhicule | |
| WO2022234236A1 (fr) | Element vitre pour l'isolation acoustique d'un véhicule | |
| FR2945765A1 (fr) | Procede de selection d'un intercalaire pour un amortisseur vibro-acoustique, intercalaire pour un amortisseur vibro-acoustique et vitrage comprenant un tel intercalaire. | |
| EP1151855B9 (fr) | Vitrage feuilleté à propriétés de résistance mécanique et d'isolation acoustique | |
| EP0763420B1 (fr) | Vitrage feuilleté d'isolation acoustique | |
| CA2652755C (fr) | Vitrage feuillete acoustique, intercalaire acoustique et procede de selection de l'intercalaire pour un amortissement acoustique optimal | |
| EP2421705B1 (fr) | Procede de fabrication d'un vitrage feuillete et vitrage feuillete | |
| CA3026735A1 (fr) | Intercalaire plastique viscoelastique pour un amortissement vibro-acoustique et vitrage comprenant un tel intercalaire | |
| CA2784968A1 (fr) | Dispositif et procede de maintien de parallelisme entre les deux vitres d'un double vitrage d'aeronef | |
| EP3074222A1 (fr) | Vitrage feuilleté déstine a etre utilisé comme écran de systeme de visualisation tete haute | |
| CA2930240C (fr) | Intercalaire plastique viscoelastique pour un amortissement vibro-acoustique et vitrage comprenant un tel intercalaire | |
| EP0842767B1 (fr) | Vitrage multiple à propriétés d'isolation acoustique et thermique | |
| CA2482152C (fr) | Procede pour selectionner un intercalaire quant a sa resistance mecanique | |
| EP3626572A1 (fr) | Voiture de véhicule de transport public à climatisation perfectionnée | |
| FR2864988A1 (fr) | Vitrage multiple a proprietes d'isolation acoustique et thermique | |
| WO2022229584A1 (fr) | Ensemble vitré comprenant un détecteur de buée | |
| EP4330954A1 (fr) | Vitrage acoustiquement isolant pour un aeronef | |
| EP4532198A1 (fr) | Élément vitré comprenant un système de prédiction et/ou de détection de la buée | |
| WO2025146366A1 (fr) | Procédé de désembuage ou de dégivrage d'un vitrage | |
| FR3046808A1 (fr) | Dispositif pour batiment a panneaux permettant le passage de lumiere |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
| 17P | Request for examination filed |
Effective date: 20231206 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) | ||
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SAINT-GOBAIN SEKURIT FRANCE |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
| 17Q | First examination report despatched |
Effective date: 20250611 |