EP3371984A1 - Fenetre multi-vitrage integrant un dispositif de reduction du bruit - Google Patents
Fenetre multi-vitrage integrant un dispositif de reduction du bruitInfo
- Publication number
- EP3371984A1 EP3371984A1 EP16809476.1A EP16809476A EP3371984A1 EP 3371984 A1 EP3371984 A1 EP 3371984A1 EP 16809476 A EP16809476 A EP 16809476A EP 3371984 A1 EP3371984 A1 EP 3371984A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- membrane
- hook member
- complementary
- piston
- window according
- 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.)
- Granted
Links
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- 239000012528 membrane Substances 0.000 claims abstract description 118
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- 230000008859 change Effects 0.000 claims description 6
- 239000011521 glass Substances 0.000 abstract description 3
- 238000009413 insulation Methods 0.000 description 7
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
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- 239000010959 steel Substances 0.000 description 2
- 101100334009 Caenorhabditis elegans rib-2 gene Proteins 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
- E06B3/67—Units comprising two or more parallel glass or like panes permanently secured together characterised by additional arrangements or devices for heat or sound insulation or for controlled passage of light
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
- E06B5/20—Doors, windows, or like closures for special purposes; Border constructions therefor for insulation against noise
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
- G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
- G10K11/1785—Methods, e.g. algorithms; Devices
- G10K11/17857—Geometric disposition, e.g. placement of microphones
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
- G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
- G10K11/1785—Methods, e.g. algorithms; Devices
- G10K11/17861—Methods, e.g. algorithms; Devices using additional means for damping sound, e.g. using sound absorbing panels
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
- G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
- G10K11/1787—General system configurations
- G10K11/17873—General system configurations using a reference signal without an error signal, e.g. pure feedforward
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
- G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
- G10K11/1787—General system configurations
- G10K11/17875—General system configurations using an error signal without a reference signal, e.g. pure feedback
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/04—Plane diaphragms
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/16—Mounting or tensioning of diaphragms or cones
- H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
- G10K2210/10—Applications
- G10K2210/129—Vibration, e.g. instead of, or in addition to, acoustic noise
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
- G10K2210/30—Means
- G10K2210/321—Physical
- G10K2210/3219—Geometry of the configuration
Definitions
- the invention relates to a multi-glazed window incorporating a noise reduction device.
- the loudspeaker described in the Carme patent comprises a vibrating membrane disposed between two adjacent panes so as to vibrate in the air gap separating the two said panes. It also has a hollow body, one of which face is formed at least partially by a membrane suspended at the side walls of said body which are adjacent to said membrane.
- the Carme patent proposes various solutions to ensure the junction between the membrane and the side walls of the loudspeaker body.
- the two longitudinal edges protruding from this membrane are folded against the longitudinal side walls of the body, and are fixed externally on these walls, or under the bottom, by gluing.
- an elastic ring-shaped gasket for example rubber, is glued on the one hand under the edges of the membrane, and on the other hand on the upper edges of the side walls of the body.
- the seal is alternately compressed and stretched (in its section) during the vibrating motion of the membrane.
- the junction can also be provided by an elastic bellows-shaped seal, that is to say having a zig-zag section, which is also glued on the one hand under the edges of the membrane, and on the other hand share on the upper edges of the side walls of the body.
- This junction can finally be provided by an elastic ring-shaped seal, glued on the one hand against the edges of the membrane, and on the other hand against the inside of the side walls of the body, almost at the upper edges of these side walls.
- an object of the invention is to provide a junction between the membrane and the side walls of the body which ensures a homogeneous or almost homogeneous tension of said membrane.
- Another object of the invention is to provide a junction between the membrane and the side walls of the body whose quality is constant over time.
- a further object of the invention is to provide a multi-glazed window whose sound insulation is improved compared to that obtained by the implementation of the Carme patent.
- Yet another object of the invention is to provide a noise reduction device which is simple in design and easy to install.
- the solution proposed by the invention is a multi-glazed window incorporating an active or passive noise reduction device, which device comprises at least one vibrating membrane arranged between two adjacent panes so as to vibrate in the air gap separating the two said windows, which device comprises a hollow body comprising two longitudinal side walls and one side of which is formed at least partially by the diaphragm suspended at the said side walls, on either side of said longitudinal side walls.
- the membrane has two distal edges at each of which is arranged a hook member, which hook member is secured to a complementary hook member arranged on a respective side wall of the body,
- An attached rib can be arranged at each distal edge of the membrane, which rib is housed in a complementary hook groove arranged on the respective side wall of the body.
- a hook groove is provided at each distal edge of the membrane, which groove is housed in a complementary hook rib arranged on the respective side wall of the body.
- Each hook member arranged on the respective side wall of the body is advantageously associated with a control device adapted to change the position of the complementary hook member of the membrane, this position change causing a variation of the voltage of the said membrane.
- the window is preferably composed of a frame formed of sections flanking the two adjacent panes, the hollow body forming one of said profiles.
- the membrane can be secured to a movable rigid piston.
- the membrane preferably has two proximal edges at each of which is arranged a hook member, which hook member is secured to a complementary hook member arranged on the piston.
- An attached rib can be arranged at each proximal edge of the membrane, which rib is housed in a complementary hook groove arranged on the piston.
- a hook groove is arranged at each proximal edge of the membrane, which groove is housed in a complementary hook rib arranged on the piston.
- the piston is advantageously secured to a rigid wing which extends towards the bottom of the hollow body in the longitudinal median plane of said body, which wing carries an electromagnetic coil connected to a power supply, which coil is disposed between two fixed magnets placed in the hollow body, said coil and said magnets cooperating to induce a vibratory movement to said piston when said coil is electrically powered.
- the rigid wing is preferably suspended from fixed parts of the body by elastomeric elements arranged symmetrically with respect to the longitudinal median plane of said body, which elastomeric elements each have: - a distal edge at which is arranged a hook member which is solidarise with a complementary organ of hooked up arranged on a fixed part of the body; - And a proximal edge at which is arranged a hook member which is secured to a complementary hook member arranged on the rigid wing.
- FIG. 1 is a cross-sectional view of a noise reduction device according to the invention, according to a first embodiment
- FIG. 2 is a cross-sectional view of a noise reduction device according to the invention, according to a second embodiment
- FIG. 3 is a cross-sectional view of a noise reduction device according to the invention, according to a third embodiment
- FIG. 4 is a cross-sectional view of a noise reduction device according to the invention, according to a fourth embodiment,
- FIG. 5 illustrates in detail a setting element adapted to change the position of the hook member of the membrane.
- the present invention relates to a multi-glazed window, which is characterized by a particular design of the noise reduction device that it incorporates.
- the window itself is of the known type. It consists of a frame, or frame, formed of profiles framing a glass panel. In Figure 1, the latter is formed by two adjacent panes V1 and V2 separated by an air gap L.
- the frame is preferably rectangular or square, but can be polygonal, have one or more curved edges, etc.
- the noise reduction device is used for active or passive noise control. In active mode, it generates in the air space a sound level equivalent to the ambient sound level to be controlled (especially for environments noisy). In passive mode, it absorbs all or part of the sound waves propagating in the air space L.
- An active noise reduction device may be in the form of a piezoelectric actuator or a loudspeaker.
- a linear loudspeaker of the type described in the aforementioned US Pat. No. 6,285,773 (Carme) is preferably used and to which the person skilled in the art can refer if necessary.
- This type of linear speaker can indeed be easily housed in a reduced volume and in particular in a narrow space, while having a performance comparable to that of a conventional speaker conical membranes.
- the geometric shape and the particular arrangement of the constituent elements of the linear loudspeaker offer a very satisfactory performance. In particular, given the long length of the membrane, it moves a large mass of air during its vibration, which provides a good performance in the low frequencies.
- the noise reduction device may comprise a single linear speaker disposed on only one of the sides of the window frame, or a plurality of linear loudspeakers disposed respectively on the different sides of said frame.
- the choice of the number of loudspeakers and their arrangement in the window frame depends on the sound field to be attenuated, by superposition (active noise reduction) or absorption (passive noise reduction), noise propagating in the blade L air, to increase the sound insulation of double glazing.
- FIG. 1 gives a schematic representation of a linear loudspeaker, which appears externally as a hollow body 1 in the form of an elongate rectangular parallelepiped, having for example a length of 50 cm at 2 m, a width of 2 cm to 4 cm and a depth of 2 cm to 4 cm.
- the body 1 may be made of aluminum, steel, plastic, or any other material that is suitable for those skilled in the art and advantageously forms one of the profiles of the frame of the window.
- the hollow body 1 is delimited by two longitudinal lateral walls 2 and a bottom 3.
- At least one face of the body 1 is formed at least partially by a vibrating membrane 7 which is suspended at the side walls 2 and extends on either side of the latter.
- the membrane 7 is installed on the upper face of the body 1, opposite the bottom 3. In this configuration, the membrane 7 is disposed between the two adjacent panes V1, V2 so as to vibrate in the blade
- This membrane 7 is flat and for the case of a linear speaker, it is elongated. It extends preferentially over the entire length of the body 1.
- the membrane 7 is formed by a film with elastic properties, such as an elastomer having an elastic capacity or a polyethylene film.
- the membrane 7 is secured to a movable rigid piston 11.
- the latter is made of a lightweight material such as aluminum, a plastic, a composite material (for example: carbon fiber ), possibly with a honeycomb structure to further lighten the room. It has a complementary shape of the membrane 7, and in the case of a linear speaker is shaped elongated rectangular plate.
- the piston 11 is secured to a rigid flange 12 which extends towards the bottom 3 of the body 1, in the longitudinal median plane P of said body.
- the assembly has a generally "T" shaped cross section.
- the wing 12 extends longitudinally in the body 1, in the same way as the membrane 7 and the piston 11.
- the wing 12 can be attached to the face lower piston 11, or be an integral part thereof, in which case the piston 1 1 and the flange 12 form a single piece.
- the wing 12 carries an electromagnetic coil 13 connected to a power supply.
- This coil 13 is surrounded around the outer lateral faces of the wing 12, in the length of the latter, parallel to the plane of the membrane 7. With this elongate coil 13 extending below the membrane 7 the forces are uniformly distributed over the length of said membrane, thus limiting the distortions.
- this configuration makes it possible to obtain a quasi-pure resistive behavior of the coil 13. Whatever the acoustic frequencies to be processed, there is no weighting as a function of the impedance of the loudspeaker, which is translated by an absence of hazardous behavior.
- the coil 13 is preferably made of a copper wire 0.2 mm in diameter forming a dozen turns around the wing 12.
- the coil 13 is arranged between two stationary magnets 5 placed in the body 1.
- the magnets 5 are installed on fixed polar parts 200, arranged in the body 1, symmetrically on either side of the longitudinal median plane. P, parallel to the wing 12.
- the fixed magnets 5 are thus placed outside the voice coil 13 on either side of the two long sides of this coil 13.
- the pole portions 200 are supplemented by a central stationary polar portion 201 located in the longitudinal median plane P.
- the wing 12 has a recess 120, open towards the bottom 3, in which is slidably engaged the central fixed polar portion 201.
- the latter extending substantially over the entire length of the membrane 7, ensures good guidance of the movement thereof, over its entire length. All these polar parts 200, 201 are advantageously joined in the form of a profile 20 in "LU".
- the latter can be obtained by molding or extrusion and be reported in the body 1 and fixed on the bottom 3 by any suitable fastening means.
- the profile 20 has the same length or substantially the same length as the wing 12 and / or the coil 13. Unlike the solution disclosed in the aforementioned US Pat. No.
- the magnets 5 may have a length equivalent to that of the coil 13. For cost reasons, it is advantageous to provide several magnets 5 placed end to end in the direction of the length of the polar parts 200, above the bottom 3 and below the membrane 7. The magnets 5 are arranged on the polar parts 200 so that their facing face has the same polarity (enantiomorphic arrangement).
- the coil 13 and the magnets 5 cooperate to induce a vibratory movement to the piston 1 1, and therefore to the membrane 7, when said coil is electrically powered.
- the power supply of the coil 13 is controlled by a control electronics (not shown) connected to one or more acoustic microphones (not shown) as illustrated in FIG. 8 of the patent document.
- a control electronics not shown
- acoustic microphones not shown
- the passage in the coil 13 of an electrical signal representative of the noise generates an electromagnetic force in the wing 12. Due to the symmetry of the poles of the magnets 5, the induced fluxes are in the same direction, which causes the displacement of the wing 12 and the piston 1 1 in the same direction in the vertical direction of Figure 1, and causes the vibration of the membrane 7 which generates the noise.
- the acoustic microphone (s) sends (a) a signal representative of the noise in the air gap L to the control electronics.
- the membrane 7 has two distal borders 71 (located respectively at the right outer end and at the left outer end of the membrane 7 in FIG. 1) and two proximal edges 72 (located respectively at the end internal right and at the left inner end of the membrane 7 in Figure 1).
- a hook member 7a is arranged at each of the distal edges 71. This hook member 7a is secured to a complementary hook member 2a arranged on a respective side wall 2 of the body 1.
- This mechanical connection between the membrane 7 and the body 1 provides an external or peripheral suspension of said membrane and ensures a homogeneous or almost homogeneous tension of said membrane.
- a mechanical fastening of the membrane 7 to the side walls 2 of the body 1 is simple, fast, reliable and durable over time.
- the deformation of the membrane 7 during vibration, which is elastically suspended from the walls 2 by this mechanical connection remains symmetrical on either side of its average rest position shown in FIG. 1.
- the diaphragm 7 is now linked to the body 1 and not to the pole portions 200, 201, which optimizes the design of the profile 20, particularly in terms of thickness and compactness.
- the hooking members are each in the form of a hook rib 7a which is arranged at each distal edge 71 of said membrane.
- this annular rib 7a extends over the entire length of said membrane and possibly on the short sides of said membrane at each end.
- Each rib 7a is preferably made of the same material as the membrane 7 and obtained during the molding thereof. It is preferably annular, of circular section and whose diameter is between 2 mm and 5 mm.
- Each rib 7a is housed in a complementary hook groove 2a arranged on the respective side wall 2 of the body 1.
- the groove 2a is for example obtained by machining or during the molding of the body 1.
- the placement of the membrane 7 is thus achieved very simply by inserting the ribs 7a in the grooves 2a.
- each rib 7a is fitted tightly into the complementary groove 2a so that said rib does not pivot in said groove when the membrane vibrates. This characteristic also makes it possible to avoid any risk of inadvertent disconnection of the membrane 7.
- it ensures a hermetic junction between the membrane 7 and the body 1, that is to say that the air can not pass to the level from this junction.
- the groove 2a may have dimensions, in particular a diameter, smaller than that of the rib 7a. In the case where the latter is flexible, its insertion into the groove 2a is made possible by deformation.
- the proximal borders 72 are adjacent to the longitudinal lateral edges of the piston 1 1.
- a hook member 7b is secured to a complementary hook member 1b arranged on the piston 1 1.
- This is the same type of mechanical connection simple, fast, reliable and durable over time that ensures an internal suspension of the membrane 7 on the piston 1 1 and guarantees a homogeneous or almost homogeneous tension of said membrane.
- the symmetry of the mechanical connections on the one hand on the distal edges 71 and on the other hand on the proximal edges 72 contributes to optimizing the symmetrical deformation of the membrane 7 on either side of its average resting position illustrated on FIG. figure 1.
- each hook member is in the form of a hook rib 7b which is arranged at the corresponding proximal edge 72.
- This rib 7b preferably follows the contour of the piston 1 1.
- the rib 7b is preferably made of the same material as the membrane 7 and obtained during molding of the latter. It is preferably annular, of circular section and whose diameter is between 2 mm and 5 mm.
- Each rib 7b is housed in a complementary hook groove
- each rib 7b is preferably tightly fitted into the complementary groove 11b, ensuring a hermetic connection between the membrane 7 and the piston 11.
- the membrane 7 At rest ( Figure 1), the membrane 7 is not tensioned, that is to say, it undergoes no tension, or negligible effort.
- the coil 13 When the coil 13 is electrically energized and the piston 11 goes up or down, the membrane 7 is tensioned because the assembly 70-2a is fixed while the assembly 7b-1 1b is movable.
- the membrane 7 therefore always works in tension, offering more linearity in its movement.
- the piston 1 1 Without roll, the piston 1 1 has a mono-polar behavior.
- the vibration of the piston 1 1 is homogeneous over its entire surface: at a given moment, it "pushes” and “pulls” the air homogeneously (mono-polar behavior of the piston).
- the piston 1 1 With roll, the piston 1 1 has a dipolar behavior.
- the vibration of the piston 1 1 is not homogeneous over its entire surface: at a given moment, the air is "pushed” on a portion of the surface of the piston 1 1, and “pulled” in equal proportion on the remaining part of the surface of said piston. Both effects tend to cancel each other out, potentially reducing the ability of the piston 1 1 to attenuate the noise.
- the rigid wing 12 is preferably suspended from fixed parts of the body 1 by elastomeric elements 700 arranged symmetrically with respect to the longitudinal median plane P of said body 1.
- the wing rigid 12 is suspended from the polar parts 200.
- the piston 11 is then suspended in its upper part by the membrane 7, and in its lower part by the elements 700.
- the elements 700 are similar to the membrane 7 and made of the same material. They are flat, and for the case of a linear speaker, they are lying. They extend preferably over the entire length of the body 1.
- the elements 700 each have a distal edge 701 and a proximal edge 702.
- a hook member 700a is arranged at each distal edge 701, which member is secured to a complementary hook member 200a arranged on a fixed portion 200 of the body 1.
- a hook member 700b is also arranged at each proximal edge 702, which member is secured to a complementary hook member 12b arranged on the wing 12.
- the hook members 700a-200a and 700b- 12b are identical to those described above.
- Figures 2, 3 and 4 illustrate alternative embodiments.
- the noise reduction device is a passive device without magnetic component integrated in the body 1.
- the piston 1 1 is also free of wing. Fixing the membrane 7 on the one hand on the side walls 2 and on the other hand on the piston 1 1, is achieved by means of hook members 7a-2a and 7b-1 1b identical to those described above with reference to Figure 1. In this configuration, the membrane 7 absorbs all or part of the sound vibrations propagating in the air gap L, to increase the sound insulation of the double glazing.
- the noise reduction device is also a passive device similar to that of FIG. 2, with no magnetic component integrated in the body 1, nor piston 1 1.
- the membrane 7 is simply suspended from the lateral walls 2 of the body 1 and extends on either side of said walls. Only the hook member 7a arranged on each distal edge 71 is secured to the complementary hook member 2a arranged on the respective side wall 2 of the body 1.
- the hook members 7a and 2a are identical to those described above. with reference to FIG.
- FIG. 4 is similar to that of FIG. 2 except in the design of hook members.
- a hook groove 7'a is here arranged at each distal edge 71 of the membrane 7, which groove is housed in a complementary hooked rib 2'a arranged on the respective side wall 2 of the body 1.
- a hook groove 7'b is arranged at each proximal edge 72 of the membrane 7, which groove 7 b is housed in a complementary hook rib 1 1 'b arranged on the piston 1 1.
- the noise reduction device when the noise reduction device is passive, it may be advantageous to adjust the voltage of the membrane 7 so as to adjust its resonant frequency according to the volume of the blade L and / or depending on the band of sound frequencies to be reduced.
- the double glazing behaves like an acoustic system of the type asse / Spring / Mass.
- the air gap L acting as a spring and the windows V1, V2 playing the role of mass.
- This system has a resonant frequency at which it is likely to absorb energy.
- the resonance frequency can be "tuned” so that it is, for example, equivalent to the first acoustic resonance mode of the air knife L.
- the noise reduction device has therefore the capacity to absorb a part of the acoustic field of the air space L. This absorption is done by dissipation of energy (heat) in the membrane 7.
- each hook member 2a provided on the respective lateral wall 2 of the body 1 is advantageously associated with an adjustment device 21a, 22a adapted to modify the position the hook member 7a complementary to the membrane 7, this position change causing a change in the voltage of said membrane.
- the groove 2a is formed in a nut 21 mounted to move in translation in a housing 22 arranged in the corresponding side wall 2.
- these elements preferably have a square or rectangular cross section.
- This nut 21 moves in the plane containing the membrane 7, in a horizontal direction A which is perpendicular to the median plane P.
- the nut 21 is secured to a threaded rod 21a which passes through the housing 22 and opens on the outer lateral face of the wall 2, outside the body 1.
- An adjustment nut 22a is screwed onto the distal end of the threaded rod 21a.
- the nut 21 moves towards the bottom of the housing 22, causing a tensioning of the membrane 7.
- unscrewing the nut 22a the nut 21 moves in the opposite direction, the membrane 7 relaxing .
- the nut 22a is outside the body 1, an operator can easily adjust the voltage of the membrane 7 and therefore its resonant frequency.
- the window may have more than two windows, including three panes.
- the noise reduction device may be in the form of a loudspeaker having a square or circular membrane (for example an ASC A loudspeaker marketed by the applicant); in this case, it is advantageous to install several of these circular speakers, in alignment, in the same side of the frame of the window.
- the hollow body 1 has a complementary shape which is delimited by side walls and a bottom.
- the profile 20 can be directly integrated in the body 1 and formed therewith a one-piece piece obtained for example by molding or extrusion.
- the membrane 7 may extend over only a portion of the total length of the body 1 and more particularly in the only median region of this body; the latter thus delimiting towards its ends, on either side of said membrane, two empty internal spaces constituting a volume of agreement; the magnetic components 5, 13, 200, 201 can then also be limited, in their length, to this median region.
- the rib 7a extends over the entire periphery of said membrane.
- the ribs 7a and / or 7b and / or 2'a and / or 11 'b may have a square, rectangular, oval or other; the grooves 2a and / or 11b and / or 7'a and / or 7'b then having a complementary section.
- the ribs 7a and / or 7b and / or 2'a and / or 11 'b may be attached to the distal edge 71 and / or the proximal edge 72, for example by welding or pinching, and be made of different material that of the membrane 7, for example in a rigid material.
- the adjusting device 21a, 22a may be in any other form suitable for the skilled person.
- the loudspeaker can be used in any type of double wall for the sound of a room (the vibrating membrane 7 being disposed between two adjacent walls so as to vibrate in the air gap separating the two said walls ), or mounting in or on exhaust or ventilation ducts, for the active treatment of noise in these ducts.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Signal Processing (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1560491A FR3043297B1 (fr) | 2015-11-02 | 2015-11-02 | Fenetre multi-vitrage integrant un dispositif de reduction du bruit |
PCT/FR2016/052839 WO2017077236A1 (fr) | 2015-11-02 | 2016-11-02 | Fenetre multi-vitrage integrant un dispositif de reduction du bruit |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3371984A1 true EP3371984A1 (fr) | 2018-09-12 |
EP3371984B1 EP3371984B1 (fr) | 2021-09-29 |
Family
ID=54848824
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16809476.1A Active EP3371984B1 (fr) | 2015-11-02 | 2016-11-02 | Fenetre multi-vitrage integrant un dispositif de reduction du bruit |
Country Status (4)
Country | Link |
---|---|
US (1) | US20180320434A1 (fr) |
EP (1) | EP3371984B1 (fr) |
FR (1) | FR3043297B1 (fr) |
WO (1) | WO2017077236A1 (fr) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102018126387A1 (de) * | 2018-10-23 | 2020-04-23 | Tdk Electronics Ag | Schallwandler und Verfahren zum Betrieb des Schallwandlers |
FR3097893B1 (fr) | 2019-06-27 | 2021-07-23 | Saint Gobain | Installation à double paroi |
CA3163808A1 (fr) * | 2020-02-07 | 2021-08-12 | Alicia Droge | Vitrage dote d'un transpondeur rfid |
CN111827845A (zh) * | 2020-07-24 | 2020-10-27 | 温州前瞻玻璃科技有限公司 | 一种悬膜中空玻璃、制作方法、连续化生产设备及应用 |
CN111894409A (zh) * | 2020-07-24 | 2020-11-06 | 温州前瞻玻璃科技有限公司 | 一种悬膜中空玻璃及其制作方法和连续化生产线 |
CN114893106B (zh) * | 2022-06-14 | 2023-06-23 | 郑书梅 | 人工降噪智能门窗 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050276434A1 (en) * | 2004-06-09 | 2005-12-15 | Citizen Electronics Co., Ltd. | Dynamic exciter and loudspeaker using the same |
US20140145836A1 (en) * | 2010-12-31 | 2014-05-29 | Nokia Corporation | Display apparatus producing audio and haptic output |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2766650A1 (fr) * | 1997-07-23 | 1999-01-29 | Technofirst | Haut-parleur lineaire |
-
2015
- 2015-11-02 FR FR1560491A patent/FR3043297B1/fr not_active Expired - Fee Related
-
2016
- 2016-11-02 EP EP16809476.1A patent/EP3371984B1/fr active Active
- 2016-11-02 WO PCT/FR2016/052839 patent/WO2017077236A1/fr active Application Filing
- 2016-11-02 US US15/772,894 patent/US20180320434A1/en not_active Abandoned
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050276434A1 (en) * | 2004-06-09 | 2005-12-15 | Citizen Electronics Co., Ltd. | Dynamic exciter and loudspeaker using the same |
US20140145836A1 (en) * | 2010-12-31 | 2014-05-29 | Nokia Corporation | Display apparatus producing audio and haptic output |
Non-Patent Citations (1)
Title |
---|
See also references of WO2017077236A1 * |
Also Published As
Publication number | Publication date |
---|---|
FR3043297B1 (fr) | 2017-12-08 |
WO2017077236A1 (fr) | 2017-05-11 |
EP3371984B1 (fr) | 2021-09-29 |
FR3043297A1 (fr) | 2017-05-05 |
US20180320434A1 (en) | 2018-11-08 |
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