EP3371984A1 - Multi-glazed window incorporating a noise reduction device - Google Patents

Multi-glazed window incorporating a noise reduction device

Info

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
Application number
EP16809476.1A
Other languages
German (de)
French (fr)
Other versions
EP3371984B1 (en
Inventor
Christian Carme
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CARME, CHRISTIAN
Technofirst SA
Original Assignee
Technofirst SA
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 Technofirst SA filed Critical Technofirst SA
Publication of EP3371984A1 publication Critical patent/EP3371984A1/en
Application granted granted Critical
Publication of EP3371984B1 publication Critical patent/EP3371984B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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.

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Abstract

The invention relates to a multi-glazed window incorporating an active or passive noise reduction device, which device comprises at least one vibrating membrane (7) disposed between two adjacent glass panes (V1, V2) in such a way as to vibrate in the air layer separating said two glass panes, which device comprises a hollow body (1) comprising two longitudinal side walls (2) and one face of which is constituted at least partially by the membrane (7) suspended at said side walls, on either side of same, characterised by the fact that the membrane (7) has two distal edges (71) at each of which is arranged an attachment member (7a, 7'a), which attachment member (7a, 7'a) engages with a complementary attachment member (2a, 2'a) arranged on a respective side wall (2) of the body (1).

Description

FENETRE MULTI-VITRAGE INTEGRANT UN DISPOSITIF DE MULTI-WINDOW WINDOW INTEGRATING A DEVICE
REDUCTION DU BRUIT NOISE REDUCTION
Description  Description
Domaine technique de i'invention. L'invention a pour objet une fenêtre multi-vitrage intégrant un dispositif de réduction du bruit. Technical field of the invention. The invention relates to a multi-glazed window incorporating a noise reduction device.
Elle concerne le domaine technique des dispositifs permettant d'améliorer l'isolation phonique d'une fenêtre. It concerns the technical field of devices for improving the sound insulation of a window.
État de la technique. State of the art
Le document brevet US 6.285.773 (Carme) divulgue un système antibruit actif, comprenant un ou plusieurs haut-parleurs linéaires disposés en bordure d'un double vitrage, dans la lame d'air entre les deux vitres et/ou à l'intérieur d'un profilé d'encadrement de ce double vitrage. Dans ce système antibruit, le haut- parleur permet de réaliser un système électro-acoustique pratiquement invisible, et ne nuisant ni au confort visuel, ni à la transmission lumineuse du vitrage, le système proposé permettant d'améliorer l'isolation phonique d'un double vitrage notamment dans les basses fréquences. Document US Pat. No. 6,285,773 (Carme) discloses an active noise canceling system, comprising one or more linear loudspeakers arranged at the edge of a double glazing, in the air gap between the two panes and / or inside. a frame profile of this double glazing. In this noise-canceling system, the loudspeaker makes it possible to produce an electro-acoustic system which is practically invisible, and which does not impair the visual comfort or the light transmission of the glazing, the proposed system making it possible to improve the sound insulation of a loudspeaker. double glazing especially in the low frequencies.
Le haut-parleur décrit dans le brevet Carme, comprend une membrane vibrante disposée entre deux vitres adjacentes de manière à vibrer dans la lame d'air séparant les deux dites vitres. Il comporte également un corps creux dont une face est constituée au moins partiellement par une membrane suspendue au niveau des parois latérales dudit corps qui sont adjacentes à ladite membrane. 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.
Le brevet Carme propose différentes solutions pour assurer la jonction entre la membrane et les parois latérales du corps du haut parleur. The Carme patent proposes various solutions to ensure the junction between the membrane and the side walls of the loudspeaker body.
Dans un mode de réalisation préféré, les deux bords longitudinaux débordant de cette membrane sont rabattus contre les parois latérales longitudinales du corps, et sont fixés extérieurement sur ces parois, ou sous le fond, par un collage.  In a preferred embodiment, 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.
Dans une variante de réalisation, un joint élastique en forme de boudin, par exemple en caoutchouc, est collé d'une part sous les bords de la membrane, et d'autre part sur les arêtes supérieures des parois latérales du corps. Le joint est alternativement comprimé et étiré (dans sa section) lors du mouvement vibrant de la membrane.  In an alternative embodiment, 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.
La jonction peut également être assurée par un joint élastique en forme de soufflet, c'est-à-dire présentant une section en zig-zag, qui est lui aussi collé d'une part sous les bords de la membrane, et d'autre part sur les arêtes supérieures des parois latérales du corps.  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.
Cette jonction peut enfin être assurée par un joint élastique en forme de boudin, collé d'une part contre les bords de la membrane, et d'autre part contre l'intérieur des parois latérales du corps, pratiquement au niveau des arêtes supérieures de ces parois latérales.  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.
Les solutions techniques proposées dans le brevet Carme permettent de suspendre la membrane de manière à ce qu'elle se trouve tendue en permanence et de façon "équilibrée", c'est-à-dire en engendrant la même force de rappel élastique pour un déplacement dans un sens ou dans l'autre de ladite membrane, de sorte que celle-ci a, au cours de son mouvement vibratoire, une déformation symétrique de part et d'autre de sa position de repos. Dans la pratique, le collage crée des irrégularités au niveau de la jonction entre la membrane et les parois latérales du corps du haut parleur, de sorte que la tension dans ladite membrane n'est pas homogène. La demanderesse a pu constater que ce défaut, s'il n'était pas maîtrisé, pouvait entraîner une déformation dissymétrique de la membrane, et donc une diminution du rendement du transducteur et incidemment de l'isolation phonique. En outre, la qualité de cette liaison par collage peut se dégrader dans le temps, notamment du fait des UV et des variations thermiques auxquelles est sujette la fenêtre. L'invention vise à remédier à cet état des choses. En particulier, un objectif de l'invention est d'assurer une jonction entre la membrane et les parois latérales du corps qui garantisse une tension homogène, ou quasiment homogène, de ladite membrane. The technical solutions proposed in the Carme patent make it possible to suspend the membrane so that it is permanently tensioned and in a "balanced" manner, that is to say by generating the same elastic return force for a displacement in one direction or the other of said membrane, so that it has, during its vibratory movement, a symmetrical deformation on either side of its rest position. In practice, the bonding creates irregularities at the junction between the membrane and the side walls of the speaker body, so that the voltage in said membrane is not homogeneous. The Applicant has found that this defect, if it was not controlled, could cause asymmetrical deformation of the membrane, and therefore a decrease in the efficiency of the transducer and incidentally sound insulation. In addition, the quality of this connection by bonding can deteriorate over time, especially because of the UV and thermal variations to which the window is subject. The invention aims to remedy this state of affairs. In particular, 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.
Un autre objectif de l'invention est d'assurer une jonction entre la membrane et les parois latérales du corps dont la qualité est constante dans le temps.  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.
Un objectif supplémentaire de l'invention est de proposer une fenêtre multi- vitrage dont l'isolation phonique est améliorée par rapport à celle obtenue par la mise en œuvre du brevet Carme.  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.
Encore un autre objectif de l'invention est de proposer un dispositif de réduction du bruit qui soit de conception simple et facile à installer.  Yet another object of the invention is to provide a noise reduction device which is simple in design and easy to install.
Divulgation de S'invention, Disclosure of Invention,
La solution proposée par l'invention est une fenêtre multi-vitrage intégrant un dispositif de réduction du bruit actif ou passif, lequel dispositif comprend au moins une membrane vibrante disposée entre deux vitres adjacentes de manière à vibrer dans la lame d'air séparant les deux dites vitres, lequel dispositif comporte un corps creux comprenant deux parois latérales longitudinales et dont une face est constituée au moins partiellement par la membrane suspendue au niveau desdites parois latérales, de part et d'autre desdites parois latérales longitudinales. 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.
Cette fenêtre est remarquable en ce que :  This window is remarkable in that:
- la membrane présente deux bordures distales au niveau de chacune desquelles est aménagé un organe d'accroché, lequel organe d'accroché se solidarise à un organe d'accroché complémentaire aménagé sur une paroi latérale respective du corps,  - 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,
La jonction entre la membrane et les parois latérales du corps est donc maintenant assurée très simplement et très rapidement par une liaison mécanique qui assure une tension homogène, ou quasiment homogène, de ladite membrane. En outre, cette liaison mécanique ne souffre d'aucune dégradation dans le temps, notamment du fait des UV et des variations thermiques auxquelles est sujette la fenêtre. The junction between the membrane and the side walls of the body is now ensured very simply and very quickly by a mechanical connection which ensures a homogeneous or almost homogeneous tension of said membrane. In addition, this mechanical connection suffers no degradation over time, in particular due to the UV and thermal variations to which the window is subject.
D'autres caractéristiques avantageuses de l'invention sont listées ci- dessous. Chacune de ces caractéristiques peut être considérée seule ou en combinaison avec les caractéristiques remarquables définies ci-dessus, et faire l'objet, le cas échéant, d'une ou plusieurs demandes de brevet divisionnaires : Other advantageous features of the invention are listed below. Each of these features may be considered alone or in combination with the outstanding characteristics defined above, and may be subject, where applicable, to one or more divisional patent applications:
- Une nervure d'accroché peut être aménagée au niveau de chaque bordure distale de la membrane, laquelle nervure est logée dans une gorge d'accroché complémentaire aménagée sur la paroi latérale respective du corps.  - 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.
- Dans une variante de réalisation, une gorge d'accroché est aménagée au niveau de chaque bordure distale de la membrane, laquelle gorge est logée dans une nervure d'accroché complémentaire aménagée sur la paroi latérale respective du corps.  - In an alternative embodiment, 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.
- Chaque organe d'accroché aménagé sur la paroi latérale respective du corps est avantageusement associé à un dispositif de réglage adapté pour modifier la position de l'organe d'accroché complémentaire de la membrane, cette modification de position entraînant une variation de la tension de ladite membrane. - La fenêtre se compose préférentiellement d'un encadrement formé de profilés encadrant les deux vitres adjacentes, le corps creux formant un desdits profilés. - 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.
- La membrane peut être solidarisée à un piston rigide mobile.  - The membrane can be secured to a movable rigid piston.
- La membrane présente préférentiellement deux bordures proximales au niveau de chacune desquelles est aménagé un organe d'accroché, lequel organe d'accroché se solidarise à un organe d'accroché complémentaire aménagé sur le 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.
- Une nervure d'accroché peut être aménagée au niveau de chaque bordure proximale de la membrane, laquelle nervure est logée dans une gorge d'accroché complémentaire aménagée sur le 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.
- Dans une variante de réalisation, une gorge d'accroché est aménagée au niveau de chaque bordure proximale de la membrane, laquelle gorge est logée dans une nervure d'accroché complémentaire aménagée sur le piston.  - In an alternative embodiment, 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.
- Le piston est avantageusement solidaire d'une aile rigide qui s'étend vers le fond du corps creux dans le plan médian longitudinal dudit corps, laquelle aile porte une bobine électromagnétique connectée à une alimentation électrique, laquelle bobine est disposée entre deux aimants fixes placés dans le corps creux, ladite bobine et lesdits aimants coopérant de manière à induire un mouvement vibratoire audit piston lorsque ladite bobine est alimentée électriquement.  - 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.
- L'aile rigide est préférentiellement suspendue à des parties fixes du corps par des éléments élastomères disposés symétriquement par rapport au plan médian longitudinal dudit corps, lesquels éléments élastomères présentent chacun : - une bordure distale au niveau de laquelle est aménagé un organe d'accroché qui se solidarise à un organe d'accroché complémentaire aménagé sur une partie fixe du corps ; - et une bordure proximale au niveau de laquelle est aménagé un organe d'accroché qui se solidarise à un organe d'accroché complémentaire aménagé sur l'aile rigide.  - 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.
Description des figures. D'autres avantages et caractéristiques de l'invention apparaîtront mieux à la lecture de la description d'un mode de réalisation préféré qui va suivre, en référence aux dessins annexés, réalisés à titre d'exemples indicatifs et non limitatifs et sur lesquels : Description of the figures. Other advantages and characteristics of the invention will appear better on reading the description of a preferred embodiment which will follow, with reference to the accompanying drawings, carried out as indicative and non-limiting examples and in which:
- la figure 1 est une vue en coupe transversale d'un dispositif de réduction du bruit conforme à l'invention, selon un premier mode de réalisation,  FIG. 1 is a cross-sectional view of a noise reduction device according to the invention, according to a first embodiment,
- la figure 2 est une vue en coupe transversale d'un dispositif de réduction du bruit conforme à l'invention, selon un deuxième mode de réalisation,  FIG. 2 is a cross-sectional view of a noise reduction device according to the invention, according to a second embodiment,
- la figure 3 est une vue en coupe transversale d'un dispositif de réduction du bruit conforme à l'invention, selon un troisième mode de réalisation,  FIG. 3 is a cross-sectional view of a noise reduction device according to the invention, according to a third embodiment,
- la figure 4 est une vue en coupe transversale d'un dispositif de réduction du bruit conforme à l'invention, selon un quatrième mode de réalisation,  FIG. 4 is a cross-sectional view of a noise reduction device according to the invention, according to a fourth embodiment,
- la figure 5 illustre en détail un élément de réglage adapté pour modifier la position de l'organe d'accroché de la membrane.  - Figure 5 illustrates in detail a setting element adapted to change the position of the hook member of the membrane.
Modes préférés de réalisation de l'invention. Preferred embodiments of the invention
La présente invention concerne une fenêtre multi-vitrage, qui se caractérise par une conception particulière du dispositif de réduction du bruit qu'elle intègre. The present invention relates to a multi-glazed window, which is characterized by a particular design of the noise reduction device that it incorporates.
La fenêtre en elle-même est du type connue. Elle se compose d'un encadrement, ou châssis, formé de profilés encadrant un panneau vitré. Sur la figure 1 , ce dernier est formé par deux vitres adjacentes V1 et V2 séparées par une lame d'air L. L'encadrement est préférentiellement de forme rectangulaire ou carrée, mais peut être polygonal, avoir un ou plusieurs bords incurvés, etc. 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.
Le dispositif de réduction du bruit est utilisé pour un contrôle actif ou passif du bruit. En mode actif, il génère dans la lame d'air un niveau sonore équivalent au niveau sonore ambiant à contrôler (en particulier pour les environnements bruyants). En mode passif, il absorbe tout ou partie des ondes sonores se propageant dans la lame d'air L. 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.
Un dispositif de réduction actif du bruit peut se présenter sous la forme d'un actionneur piézo-électrique ou d'un haut-parleur. On utilise préférentiellement un haut-parleur linéaire du type décrit dans le document brevet US 6.285.773 (Carme) précité, et auquel l'homme du métier pourra se référer le cas échéant. Ce type de haut-parleur linéaire peut en effet être facilement logé dans un volume réduit et notamment dans un espace étroit, tout en possédant un rendement comparable à celui d'un haut-parleur classique à membranes coniques. La forme géométrique et la disposition particulière des éléments constitutifs du haut-parleur linéaire offrent un rendement très satisfaisant. En particulier, compte tenu de la longueur importante de la membrane, celle-ci déplace une grande masse d'air lors de sa vibration, ce qui permet de disposer d'un bon rendement dans les basses fréquences. 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.
On utilise dans la suite de la description le terme générique de haut-parleur, que ce dernier soit actif ou passif. Conformément à l'invention, le dispositif de réduction du bruit peut comprendre un seul haut-parleur linéaire disposé sur un seul des côtés de l'encadrement de la fenêtre, ou plusieurs haut-parleurs linéaires disposés respectivement sur les différents côtés dudit encadrement. Le choix du nombre de haut-parleurs et de leur agencement dans l'encadrement de la fenêtre dépend du champ sonore à atténuer, par superposition (réduction active du bruit) ou absorption (réduction passive du bruit), des bruits se propageant dans la lame d'air L, pour augmenter l'isolation phonique du double vitrage. In the remainder of the description, the generic term "loudspeaker" is used, whether the latter is active or passive. According to the invention, 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.
La figure 1 donne une représentation schématique d'un haut-parleur linéaire, qui se présente extérieurement comme un corps creux 1 en forme de parallélépipède rectangle allongé, possédant par exemple une longueur de 50 cm à 2 m, une largeur de 2 cm à 4cm et une profondeur de 2 cm à 4 cm. Le corps 1 peut être réalisé en aluminium, en acier, en plastique, ou en tout autre matériau convenant à l'homme du métier et forme avantageusement un des profilés de l'encadrement de la fenêtre. Dans la coupe transversale de la figure 1 , le corps creux 1 est délimité par deux parois latérales longitudinales 2 et un fond 3. 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. In the cross section of FIG. 1, the hollow body 1 is delimited by two longitudinal lateral walls 2 and a bottom 3.
Au moins une face du corps 1 est constituée au moins partiellement par une membrane vibrante 7 qui est suspendue au niveau des parois latérales 2 et s'étend de part et d'autre de ces dernières. Sur les figures annexées, la membrane 7 est installée sur la face supérieure du corps 1 , à l'opposé du fond 3. Dans cette configuration, la membrane 7 est disposée entre les deux vitres adjacentes V1 , V2 de manière à vibrer dans la lame d'air L. Cette membrane 7 est plane et pour le cas d'un haut-parleur linéaire, elle est allongée. Elle s'étend préférentiellement sur toute la longueur du corps 1. 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. In the accompanying figures, 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.
La membrane 7 est formée par un film à propriétés élastiques, tel qu'un élastomère ayant un pouvoir élastique ou un film de polyéthylène. The membrane 7 is formed by a film with elastic properties, such as an elastomer having an elastic capacity or a polyethylene film.
Dans les modes de réalisation des figures 1 et 2, la membrane 7 est solidarisée à un piston rigide mobile 11. Ce dernier est réalisé dans un matériau léger tel que l'aluminium, un plastique, un matériau composite (par exemple : fibre de carbone), avec éventuellement une structure en nid d'abeille pour alléger davantage la pièce. Il a une forme complémentaire de la membrane 7, et dans le cas d'un haut-parleur linéaire est en forme de plaque rectangulaire allongée. In the embodiments of Figures 1 and 2, 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.
Sur la figure 1 , le piston 11 est solidaire d'une aile rigide 12 qui s'étend vers le fond 3 du corps 1 , dans le plan médian longitudinal P dudit corps. L'ensemble a une section transversale en forme générale de "T". Dans le cas d'un haut-parleur linéaire, l'aile 12 s'étend longitudinalement dans le corps 1 , de la même manière que la membrane 7 et le piston 11. L'aile 12 peut être rapportée sur la face inférieure du piston 11 , ou faire partie intégrante de ce dernier, auquel cas le piston 1 1 et l'aile 12 forment une pièce monobloc. In Figure 1, 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. In the case of a linear loudspeaker, 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.
L'aile 12 porte une bobine électromagnétique 13 connectée à une alimentation électrique. Cette bobine 13 s'entoure autour des faces latérales extérieures de l'aile 12, dans la longueur de cette dernière, de façon parallèle au plan de la membrane 7. Grâce à cette bobine 13 allongée s'étendant au-dessous de la membrane 7, les forces sont réparties uniformément sur la longueur de ladite membrane, limitant ainsi les distorsions. En outre, cette configuration permet d'obtenir un comportement résistif quasi pur de la bobine 13. Quelles que soient les fréquences acoustiques à traiter, il n'y a pas de pondération en fonction de l'impédance du haut-parleur, ce qui se traduit par une absence de comportement hasardeux. La bobine 13 est préférentiellement constituée d'un fil de cuivre de 0,2 mm de diamètre formant une dizaine de tours autour de l'aile 12. 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. In addition, 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.
La bobine 13 est disposée entre deux aimants fixes 5 placés dans le corps 1. Sur la figure 1 , les aimants 5 sont installés sur des parties polaires fixes 200, disposées dans le corps 1 , symétriquement de part et d'autre du plan médian longitudinal P, parallèlement à l'aile 12. Les aimants fixes 5 sont ainsi placés à l'extérieur de la bobine mobile 13 de part et d'autre des deux grands côtés de cette bobine 13. The coil 13 is arranged between two stationary magnets 5 placed in the body 1. In FIG. 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.
Les parties polaires 200 sont complétées par une partie polaire fixe centrale 201 située dans le plan médian longitudinal P. L'aile 12 possède un évidement 120, ouvert vers le fond 3, dans lequel est engagée de façon coulissante la partie polaire fixe centrale 201. Cette dernière s'étendant pratiquement sur toute la longueur de la membrane 7, assure un bon guidage du mouvement de celle-ci, sur toute sa longueur. Toutes ces parties polaires 200, 201 sont avantageusement réunies sous la forme d'un profilé 20 en "LU". Ce dernier peut être obtenu par moulage ou extrusion et être rapporté dans le corps 1 et fixé sur le fond 3 par tout moyen de fixation approprié. Le profilé 20 a la même longueur ou sensiblement la même longueur que l'aile 12 et/ou de la bobine 13. Contrairement à la solution divulguée dans le document brevet US 6.285.773 (Carme) précité, ce ne sont plus les parois latérales 2 du corps 1 qui forment les parties polaires, mais les parois latérales 200 et la paroi centrale 201 du profilé 20. Cela est particulièrement avantageux dans la mesure où le corps 1 et le profilé 20 sont deux pièces distinctes pouvant être chacune réalisée dans un matériau différent : le corps 1 dans un matériau non métallique (par exemple un plastique) et le profilé 1 dans un matériau métallique (par exemple un acier). 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. 6,285,773 (Carme), these are no longer the side walls. 2 of the body 1 which form the polar parts, but the side walls 200 and the central wall 201 of the section 20. This is particularly advantageous insofar as the body 1 and the profile 20 are two separate parts each of which can be made of a material different: the body 1 in a non-metallic material (for example a plastic) and the profile 1 in a metallic material (for example a steel).
Les aimants 5 peuvent avoir une longueur équivalente à celle de la bobine 13. Pour des questions de coûts, il est avantageux de prévoir plusieurs aimants 5 mis bout à bout dans le sens de la longueur des parties polaires 200, au-dessus du fond 3 et en-dessous de la membrane 7. Les aimants 5 sont agencés sur les parties polaires 200 de sorte que leur face en vis-à-vis présente la même polarité (disposition énantiomorphe). 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).
La bobine 13 et les aimants 5 coopèrent de manière à induire un mouvement vibratoire au piston 1 1 , et donc à la membrane 7, lorsque ladite bobine est alimentée électriquement. 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.
D'une manière connue, la gestion de l'alimentation électrique de la bobine 13 est assurée par une électronique de contrôle (non représentée) connectée à un ou plusieurs microphones acoustiques (non représenté) comme cela est illustré sur la figure 8 du document brevet US 6.285.773 (Carme) précité. Le passage dans la bobine 13 d'un signal électrique représentatif du contre-bruit engendre une force électromagnétique dans l'aile 12. Du fait de la symétrie des pôles des aimants 5, les flux induits sont dans le même sens, ce qui entraine le déplacement de l'aile 12 et du piston 1 1 dans le même sens selon la direction verticale de la figure 1 , et provoque la vibration de la membrane 7 qui génère le contre-bruit. Le(s) microphone(s) acoustique(s) envoi(en)t un signal représentatif du bruit dans la lame d'air L à l'électronique de contrôle. Les algorithmes utilisés pour générer le contre-bruit peuvent être de type rétroactif (en anglais « feedback ») et/ou anticipatif (en langue anglaise « feedforward »). Dès lors, l'électronique de contrôle émet un signal de commande électrique à la bobine 13 en fonction du signal de bruit à traiter. Ce dispositif de réduction du bruit actif permet d'augmenter l'isolation phonique du double vitrage. Sur la figure 1 , la membrane 7 présente deux bordures distales 71 (situées respectivement à l'extrémité externe droite et à l'extrémité externe gauche de la membrane 7 sur la figure 1 ) et deux bordures proximales 72 (situées respectivement à l'extrémité interne droite et à l'extrémité interne gauche de la membrane 7 sur la figure 1 ). Un organe d'accroché 7a est aménagé au niveau de chacune des bordures distales 71. Cet organe d'accroché 7a se solidarise à un organe d'accroché complémentaire 2a aménagé sur une paroi latérale 2 respective du corps 1. Cette liaison mécanique entre la membrane 7 et le corps 1 assure une suspension externe ou périphérique de ladite membrane et garantit une tension homogène, ou quasiment homogène, de ladite membrane. Contrairement à la solution par collage préconisée dans le document brevet US 6.285.773 (Carme) précité, une solidarisation mécanique de la membrane 7 sur les parois latérales 2 du corps 1 est simple, rapide, fiable et pérenne dans le temps. Egalement, la déformation de la membrane 7 en cours de vibration, qui est suspendue élastiquement aux parois 2 par cette liaison mécanique, reste symétrique de part et d'autre de sa position moyenne de repos illustrée sur la figure 1. En outre, la membrane 7 est maintenant liée au corps 1 et non pas aux parties polaires 200, 201 , ce qui permet d'optimiser la conception du profilé 20, notamment en terme d'épaisseur et de compacité. Pour simplifier la conception et la mise en place de la membrane 7, les organes d'accroché se présentent chacun sous la forme d'une nervure d'accroché 7a qui est aménagée au niveau de chaque bordure distale 71 de ladite membrane. Lorsque la membrane 7 est rectangulaire, cette nervure annulaire 7a s'étend sur toute la longueur de ladite membrane et éventuellement sur les petits côtés de ladite membrane, à chaque extrémité. Chaque nervure 7a est préférentiellement réalisée dans le même matériau que la membrane 7 et obtenue lors du moulage de cette dernière. Elle est préférentiellement annulaire, de section circulaire et dont le diamètre est compris entre 2 mm et 5 mm. In known manner, 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. US 6,285,773 (Carme) supra. 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 algorithms used to generate the counter-noise may be retroactive (in English "feedback") and / or anticipative (in English "feedforward"). Therefore, the control electronics emits an electrical control signal to the coil 13 as a function of the noise signal to be processed. This active noise reduction device increases the sound insulation of double glazing. In FIG. 1, 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. Unlike the adhesive solution recommended in the aforementioned US Pat. No. 6,285,773 (Carme), a mechanical fastening of the membrane 7 to the side walls 2 of the body 1 is simple, fast, reliable and durable over time. Also, 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. In addition, 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. To simplify the design and implementation of the membrane 7, the hooking members are each in the form of a hook rib 7a which is arranged at each distal edge 71 of said membrane. When the membrane 7 is rectangular, 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.
Chaque nervure 7a est logée dans une gorge d'accroché complémentaire 2a aménagée sur la paroi latérale 2 respective du corps 1. La gorge 2a est par exemple obtenue par usinage ou lors du moulage du corps 1. La mise en place de la membrane 7 est ainsi réalisée très simplement en insérant les nervures 7a dans les gorges 2a. Préférentiellement, chaque nervure 7a est emmanchée serrée dans la gorge 2a complémentaire de sorte que ladite nervure ne pivote pas dans ladite gorge lorsque la membrane vibre. Cette caractéristique permet également d'éviter tout risque de désolidarisation intempestif de la membrane 7. En outre, on assure une jonction hermétique entre la membrane 7 et le corps 1 c'est-à-dire que l'air ne peut pas passer au niveau de cette jonction. Pour cela, la gorge 2a peut avoir des dimensions, notamment un diamètre, inférieur à celui de la nervure 7a. Dans le cas où cette dernière est souple, son insertion dans la gorge 2a est rendue possible par déformation. Sur la figure 1 , les bordures proximales 72 sont adjacentes aux bordures latérales longitudinales du piston 1 1. Pour assurer la jonction entre la membrane 7 et le piston 1 1 , on prévoit également d'aménager un organe d'accroché 7b au niveau de chaque bordure proximale 72. Lequel organe 7b se solidarise à un organe d'accroché complémentaire 1 b aménagé sur le piston 1 1. C'est donc le même type de liaison mécanique simple, rapide, fiable et pérenne dans le temps qui assure une suspension interne de la membrane 7 sur le piston 1 1 et garantit une tension homogène, ou quasiment homogène, de ladite membrane. La symétrie des liaisons mécaniques au niveau d'une part des bordures distaies 71 et d'autre part des bordures proximales 72, contribue à optimiser la déformation symétrique de la membrane 7 de part et d'autre de sa position moyenne de repos illustrée sur la figure 1. 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. Preferably, 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. In addition, 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. For this, 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. In FIG. 1, the proximal borders 72 are adjacent to the longitudinal lateral edges of the piston 1 1. To ensure the junction between the membrane 7 and the piston 1 1, provision is also made to arrange a hook member 7b at each proximal edge 72. Which 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.
Pour simplifier la conception et la mise en place de la membrane 7, chaque organe d'accroché se présente sous la forme d'une nervure d'accroché 7b qui est aménagée au niveau de la bordure proximale 72 correspondante. Cette nervure 7b suit préférentiellement le contour du piston 1 1. La nervure 7b est préférentiellement réalisée dans le même matériau que la membrane 7 et obtenue lors du moulage de cette dernière. Elle est préférentiellement annulaire, de section circulaire et dont le diamètre est compris entre 2 mm et 5 mm. Chaque nervure 7b est logée dans une gorge d'accroché complémentaireTo simplify the design and implementation of the membrane 7, 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
11 b aménagée sur le piston 11 , et plus particulièrement sur une bordure latérale longitudinale correspondante de ce dernier. Sur la figure 1 , lorsque la membrane 7 est en position de repos, les gorges 7a et 11 b sont alignées dans un même plan horizontal de sorte que ladite membrane est parfaitement plane. La gorge 11 b est par exemple obtenue par usinage ou lors du moulage du piston 1. La mise en place de la membrane 7 est ainsi réalisée très simplement en insérant chaque nervure 7b dans la gorge 1 1 b complémentaire. Pour les mêmes raisons qu'évoquées précédemment, chaque nervure 7b est préférentiellement emmanchée serrée dans la gorge 11b complémentaire, assurant une jonction hermétique entre la membrane 7 et le piston 11. 11 b arranged on the piston 11, and more particularly on a corresponding longitudinal side edge of the latter. In Figure 1, when the membrane 7 is in the rest position, the grooves 7a and 11b are aligned in the same horizontal plane so that said membrane is perfectly flat. The groove 11b is for example obtained by machining or during the molding of the piston 1. The establishment of the membrane 7 is thus achieved very simply by inserting each rib 7b in the groove 1 1b complementary. For the same reasons as mentioned above, each rib 7b is preferably tightly fitted into the complementary groove 11b, ensuring a hermetic connection between the membrane 7 and the piston 11.
Au repos (figure 1), la membrane 7 n'est pas tendue, c'est-à-dire qu'elle ne subit aucun effort de tension, ou alors un effort négligeable. Lorsque la bobine 13 est excitée électriquement et que le piston 11 monte ou descend, la membrane 7 est mise en tension du fait que l'assemblage 70-2a est fixe tandis que l'assemblage 7b-1 1 b est mobile. La membrane 7 travaille donc toujours en tension, offrant davantage de linéarité dans son déplacement. At rest (Figure 1), the membrane 7 is not tensioned, that is to say, it undergoes no tension, or negligible effort. 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.
Dans la configuration de la figure 1 , comme dans celle illustrée dans le document brevet US 6.285.773 (Carme) précité, on peut observer un phénomène de roulis du piston 1 1 lorsque ce dernier vibre. En effet, le piston 1 1 peut avoir une faible rotation autour de son axe longitudinal du fait du jeu qui existe entre l'évidement 120 et la partie polaire centrale 201. Cet effet de roulis impacte le comportement de la membrane 7 et peut dégrader l'atténuation du bruit. In the configuration of FIG. 1, as in that illustrated in the aforementioned US Pat. No. 6,285,773 (Carme), it is possible to observe a roll phenomenon of the piston 1 1 when the latter vibrates. Indeed, the piston 1 1 may have a small rotation about its longitudinal axis because of the clearance that exists between the recess 120 and the central pole portion 201. This roll effect impacts the behavior of the membrane 7 and can degrade the temperature. noise attenuation.
Sans roulis, le piston 1 1 a un comportement mono-polaire. La vibration du piston 1 1 est homogène sur toute sa surface : à un instant donné, il « pousse » et « tire » l'air de manière homogène (comportement mono-polaire du piston).  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).
Avec roulis, le piston 1 1 a un comportement dipolaire. La vibration du piston 1 1 n'est pas homogène sur toute sa surface : à un instant donné, l'air est « poussé » sur une partie de la surface du piston 1 1 , et « tiré » en proportion égale sur la partie restante de la surface dudit piston. Les deux effets tendent à s'annuler l'un l'autre, réduisant potentiellement l'aptitude du piston 1 1 à atténuer le bruit. Pour remédier à cela, l'aile rigide 12 est préférentiellement suspendue à des parties fixes du corps 1 par des éléments élastomères 700 disposés symétriquement par rapport au plan médian longitudinal P dudit corps 1. Sur l'exemple de la figure 1 , l'aile rigide 12 est suspendue aux parties polaires 200. Le piston 11 est alors suspendu dans sa partie supérieure par la membrane 7, et dans sa partie inférieure par les éléments 700. Cette double suspension tend à limiter, voire annuler, l'effet de roulis précité. Les éléments 700 sont similaires à la membrane 7 et réalisés dans le même matériau. Ils sont plans, et pour le cas d'un haut-parleur linéaire, ils sont allongés. Ils s'étendent préférentiellement sur toute la longueur du corps 1. Les éléments 700 présentent chacun une bordure distale 701 et une bordure proximale 702. Un organe d'accroché 700a est aménagé au niveau de chaque bordure distale 701 , lequel organe se solidarise à un organe d'accroché complémentaire 200a aménagé sur une partie fixe 200 du corps 1. Un organe d'accroché 700b est également aménagé au niveau de chaque bordure proximale 702, lequel organe se solidarise à un organe d'accroché complémentaire 12b aménagé sur l'aile 12. Les organes d'accroché 700a-200a et 700b-12b sont identiques à ceux décrits précédemment. Les figures 2, 3 et 4 illustrent des variantes de réalisation. Sur la figure 2, le dispositif de réduction du bruit est un dispositif passif, sans composant magnétique intégré dans le corps 1. Le piston 1 1 est également dépourvu d'aile. La fixation de la membrane 7 d'une part sur les parois latérales 2 et d'autre part sur le piston 1 1 , est réalisée par l'intermédiaire d'organes d'accroché 7a-2a et 7b- 1 1 b identiques à ceux décrits précédemment en référence à la figure 1. Dans cette configuration, la membrane 7 absorbe tout ou partie des vibrations sonores se propageant dans la lame d'air L, permettant d'augmenter l'isolation phonique du double vitrage. Sur la figure 3, le dispositif de réduction du bruit est également un dispositif passif similaire à celui de la figure 2, sans composant magnétique intégré dans le corps 1 , ni piston 1 1. La membrane 7 est simplement suspendue aux parois latérales 2 du corps 1 et s'étend de part et d'autre d desdites parois. Seul l'organe d'accroché 7a aménagé sur chaque bordure distale 71 se solidarise à l'organe d'accroché complémentaire 2a aménagé sur la paroi latérale 2 respective du corps 1. Les organes d'accroché 7a et 2a sont identiques à ceux décrits précédemment en référence à la figure 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. To remedy this, 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. In the example of Figure 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. This double suspension tends to limit or cancel the aforementioned roll effect . 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. In Figure 2, 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. In FIG. 3, 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.
Le mode de réalisation de la figure 4 est similaire à celui de la figure 2, sauf dans la conception des organes d'accroché. Une gorge d'accroché 7'a est ici aménagée au niveau de chaque bordure distale 71 de la membrane 7, laquelle gorge est logée dans une nervure d'accroché complémentaire 2'a aménagée sur la paroi latérale 2 respective du corps 1. Et une gorge d'accroché 7'b est aménagée au niveau de chaque bordure proximale 72 de la membrane 7, laquelle gorge 7'b est logée dans une nervure d'accroché complémentaire 1 1 'b aménagée sur le piston 1 1. The embodiment of 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. And 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.
Dans les modes de réalisation des figures 2, 3 et 4, lorsque le dispositif de réduction du bruit est passif, il peut être avantageux de régler la tension de la membrane 7 de manière à ajuster sa fréquence de résonance en fonction du volume de la lame d'air L et/ou en fonction de la bande de fréquences sonores à réduire. En effet, le double vitrage se comporte comme un système acoustique du type asse/Ressort/Masse. La lame d'air L jouant le rôle de ressort et les vitres V1 , V2 jouant le rôle de masse. Ce système présente une fréquence de résonance à laquelle il est susceptible d'absorber de l'énergie. En ajustant la tension de la membrane 7, on peut « accorder » la fréquence de résonance pour que celle-ci soit, par exemple, équivalente au premier mode de résonance acoustique de la lame d'air L. Le dispositif de réduction du bruit a donc la capacité d'absorber une partie du champ acoustique de la lame d'air L. Cette absorption se fait par dissipation d'énergie (chaleur) dans la membrane 7. In the embodiments of Figures 2, 3 and 4, 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. Indeed, 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. By adjusting the voltage of the membrane 7, 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.
Pour régler la tension de la membrane 7, et en se référant à la figure 5, chaque organe d'accroché 2a aménagé sur la paroi latérale 2 respective du corps 1 est avantageusement associé à un dispositif de réglage 21a, 22a adapté pour modifier la position de l'organe d'accroché 7a complémentaire de la membrane 7, cette modification de position entraînant une variation de la tension de ladite membrane. To adjust the tension of the membrane 7, and with reference to FIG. 5, 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.
Sur la figure 5, la gorge 2a est réalisée dans une noix 21 montée mobile en translation dans un logement 22 aménagé dans la paroi latérale 2 correspondante. Pour éviter que la noix 21 pivote dans le logement 22, ces éléments ont préférentiellement une section transversale carrée ou rectangulaire. Cette noix 21 se déplace dans le plan contenant la membrane 7, selon une direction horizontale A qui est perpendiculaire au plan médian P. La noix 21 est solidaire d'une tige filetée 21 a qui traverse le logement 22 et débouche sur la face latérale externe de la paroi 2, à l'extérieur du corps 1. Un écrou de réglage 22a est vissé sur l'extrémité distale de la tige filetée 21 a. En vissant l'écrou 22a, la noix 21 se déplace vers le fond du logement 22, entraînant une mise en tension de la membrane 7. En dévissant l'écrou 22a, la noix 21 se déplace en sens inverse, la membrane 7 se détendant. L'écrou 22a se trouvant à l'extérieur du corps 1 , un opérateur peut facilement ajuster la tension de la membrane 7 et donc sa fréquence de résonance. In Figure 5, 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. To prevent the nut 21 pivots in the housing 22, 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. By screwing the nut 22a, the nut 21 moves towards the bottom of the housing 22, causing a tensioning of the membrane 7. By 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.
L'agencement des différents éléments et/ou moyens de l'invention, dans les modes de réalisation décrits ci-dessus, ne doit pas être compris comme exigeant un tel agencement dans toutes les implémentations. En tout état de cause, on comprendra que diverses modifications peuvent être apportées à ces éléments et/ou moyens, sans s'écarter de l'esprit et de la portée de l'invention. En particulier : The arrangement of the various elements and / or means of the invention, in the embodiments described above, should not be understood as requiring such an arrangement in all implementations. In any case, it will be understood that various modifications can be made to these elements and / or means without departing from the spirit and scope of the invention. In particular :
- La fenêtre peut comporter plus de deux vitres, notamment trois vitres.  - The window may have more than two windows, including three panes.
- Le dispositif de réduction du bruit peut se présenter sous la forme d'un haut-parleur ayant une membrane carrée ou circulaire (par exemple un haut- parleur ASC A commercialisé par la demanderesse) ; dans ce cas, il est avantageux d'installer plusieurs de ces haut-parleurs circulaires, en alignement, dans un même côté de l'encadrement de la fenêtre.  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.
- Dans le cas où la forme du haut-parleur comprend une membrane carrée ou circulaire, le corps creux 1 présente une forme complémentaire qui est délimitée par des parois latérales et un fond.  - In the case where the shape of the speaker comprises a square or circular membrane, the hollow body 1 has a complementary shape which is delimited by side walls and a bottom.
- Le profilé 20 peut être directement intégré dans le corps 1 et formé avec ce dernier une pièce monobloc obtenue par exemple par moulage ou extrusion.  - 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.
- La membrane 7 peut s'étendre sur une partie seulement de la longueur totale du corps 1 et plus particulièrement dans la seule région médiane de ce corps ; ce dernier délimitant ainsi vers ses extrémités, de part et d'autre de ladite membrane, deux espaces internes vides constituant un volume d'accord ; les composants magnétiques 5, 13, 200, 201 peuvent alors aussi être limités, dans leur longueur, à cette région médiane. - 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.
- Lorsque la membrane 7 est carrée ou circulaire, la nervure 7a s'étend sur toute la périphérie de ladite membrane.  - When the membrane 7 is square or circular, the rib 7a extends over the entire periphery of said membrane.
- Les nervures 7a et/ou 7b et/ou 2'a et/ou 11 'b peuvent avoir une section carrée, rectangulaire, ovale ou autre ; les gorges 2a et/ou 11b et/ou 7'a et/ou 7'b ayant alors une section complémentaire.  - 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.
- Les nervures 7a et/ou 7b et/ou 2'a et/ou 11 'b peuvent être rapportées sur la bordure distale 71 et/ou sur la bordure proximale 72, par exemple par soudage ou pincement, et être réalisées dans matériau différent de celui de la membrane 7, par exemple dans un matériau rigide.  - 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.
- Le dispositif de réglage 21a, 22a peut se présenter sous toute autre forme convenant à l'homme du métier.  - The adjusting device 21a, 22a may be in any other form suitable for the skilled person.
- Le haut-parleur peut être utilisé dans n'importe quel type de double paroi pour la sonorisation d'un local (la membrane vibrante 7 étant disposée entre deux parois adjacentes de manière à vibrer dans la lame d'air séparant les deux dites parois), ou le montage dans ou sur des conduits d'échappement ou de ventilation, pour le traitement actif du bruit dans ces conduits.  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.

Claims

Revendications claims
1. Fenêtre multi-vitrage intégrant un dispositif de réduction du bruit actif ou passif, lequel dispositif comprend au moins une membrane vibrante (7) disposée entre deux vitres adjacentes (V1 , V2) de manière à vibrer dans la lame d'air séparant les deux dites vitres, lequel dispositif comporte un corps creux (1 ) comprenant deux parois latérales longitudinales (2) et dont une face est constituée au moins partiellement par la membrane (7) suspendue au niveau desdites parois latérales , de part et d'autre de ces dernières, 1. A multi-glazed window incorporating an active or passive noise reduction device, which device comprises at least one vibrating membrane (7) arranged between two adjacent panes (V1, V2) so as to vibrate in the air gap separating the two said windows, which device comprises a hollow body (1) comprising two longitudinal side walls (2) and one side is formed at least partially by the membrane (7) suspended at said side walls, on either side of these last,
se caractérisant par le fait que la membrane (7) présente deux bordures distales (71 ) au niveau de chacune desquelles est aménagé un organe d'accroché (7a, 7'a), lequel organe d'accroché (7a, 7'a) se solidarise à un organe d'accroché complémentaire (2a, 2'a) aménagé sur une paroi latérale (2) respective du corpscharacterized in that the membrane (7) has two distal edges (71) at each of which is arranged a hook member (7a, 7'a), which hook member (7a, 7'a) is integral with a complementary hinged member (2a, 2'a) arranged on a respective lateral wall (2) of the body
(1 ). (1).
2. Fenêtre selon la revendication 1 , dans laquelle une nervure d'accroché (7a) est aménagée au niveau de chaque bordure distale (71 ) de la membrane (7), laquelle nervure (7a) est logée dans une gorge d'accroché complémentaire (2a) aménagée sur la paroi latérale (2) respective du corps (1 ). 2. Window according to claim 1, wherein a hooking rib (7a) is arranged at each distal edge (71) of the membrane (7), which rib (7a) is housed in a complementary hook groove (2a) arranged on the respective side wall (2) of the body (1).
3. Fenêtre selon la revendication 1 , dans laquelle une gorge d'accroché (7'a) est aménagée au niveau de chaque bordure distale (71 ) de la membrane (7), laquelle gorge (7'a) est logée dans une nervure d'accroché complémentaire (2'a) aménagée sur la paroi latérale (2) respective du corps (1 ). 3. Window according to claim 1, wherein a hook groove (7'a) is provided at each distal edge (71) of the membrane (7), which groove (7'a) is housed in a rib complementary hooked (2'a) arranged on the respective side wall (2) of the body (1).
4. Fenêtre selon l'une des revendications précédentes, dans laquelle chaque organe d'accroché (2a) aménagé sur la paroi latérale (2) respective du corps (1 ) est associé à un dispositif de réglage (21a, 22a) adapté pour modifier la position de l'organe d'accroché (7a) complémentaire de la membrane (7), cette modification de position entraînant une variation de la tension de ladite membrane (7). 4. Window according to one of the preceding claims, wherein each hook member (2a) arranged on the respective side wall (2) of the body (1) is associated with an adjusting device (21a, 22a) adapted to modify the position of the hook member (7a) complementary to the membrane (7), this change of position causing a variation of the voltage of said membrane (7).
5. Fenêtre selon l'une des revendications précédentes, dans laquelle ladite fenêtre se compose d'un encadrement formé de profilés encadrant les deux vitres adjacentes (V1 , V2), le corps creux (1 ) formant un desdits profilés. 5. Window according to one of the preceding claims, wherein said window consists of a frame formed of sections flanking the two adjacent panes (V1, V2), the hollow body (1) forming one of said profiles.
6. Fenêtre selon l'une des revendications précédentes, dans laquelle la membrane (7) est solidarisée à un piston rigide mobile (1 1 ). 6. Window according to one of the preceding claims, wherein the membrane (7) is secured to a movable rigid piston (1 1).
7. Fenêtre selon la revendication 6, dans laquelle la membrane (7) présente deux bordures proximales (72) au niveau de chacune desquelles est aménagé un organe d'accroché (7b, 7'b), lequel organe d'accroché se solidarise à un organe d'accroché complémentaire (1 1 b, 1 1 'b) aménagé sur le piston (1 ). 7. Window according to claim 6, wherein the membrane (7) has two proximal edges (72) at each of which is arranged a hook member (7b, 7'b), which hook member is secured to a complementary hook member (1 1b, 1 1 'b) arranged on the piston (1).
8. Fenêtre selon la revendication 7, dans laquelle une nervure d'accroché (7b) est aménagée au niveau de chaque bordure proximale (72) de la membrane (7), laquelle nervure (7b) est logée dans une gorge d'accroché complémentaire (1 1 b) aménagée sur le piston (1 1 ). 8. Window according to claim 7, wherein a hooking rib (7b) is arranged at each proximal edge (72) of the membrane (7), which rib (7b) is housed in a complementary hook groove. (1 1 b) arranged on the piston (1 1).
9. Fenêtre selon la revendication 7, dans laquelle une gorge d'accroché (7'b) est aménagée au niveau de la bordure proximale (72) de la membrane (7), laquelle gorge (7'b) est logée dans une nervure d'accroché complémentaire (11 'b) aménagée sur le piston (1 1 ). 9. Window according to claim 7, wherein a hook groove (7'b) is arranged at the proximal edge (72) of the membrane (7), which groove (7'b) is housed in a rib complementary hung (11 'b) arranged on the piston (1 1).
10. Fenêtre selon l'une des revendications 6 à 9, dans laquelle le piston (1 1 ) est solidaire d'une aile rigide (12) qui s'étend vers le fond (3) du corps creux (1 ) dans le plan médian longitudinal (P) dudit corps, laquelle aile (12) porte une bobine électromagnétique (13) connectée à une alimentation électrique, laquelle bobine (13) est disposée entre deux aimants fixes (5) placés dans le corps creux (1 ), ladite bobine ( 3) et lesdits aimants (5) coopérant de manière à induire un mouvement vibratoire audit piston (1 1 ) lorsque ladite bobine (13) est alimentée électriquement. 10. Window according to one of claims 6 to 9, wherein the piston (1 1) is integral with a rigid flange (12) which extends towards the bottom (3) of the hollow body (1) in the plane longitudinal median (P) of said body, which wing (12) carries an electromagnetic coil (13) connected to a power supply, which coil (13) is disposed between two fixed magnets (5) placed in the hollow body (1), said coil (3) and said magnets (5) cooperating to induce a vibratory movement to said piston (1 1) when said coil (13) is electrically powered.
1 1. Fenêtre selon la revendication 10, dans laquelle l'aile rigide (12) est suspendue à des parties fixes (200) du corps (1 ) par des éléments élastomères (700) disposés symétriquement par rapport au plan médian longitudinal (P) dudit corps (1 ), lesquels éléments élastomères (700) présentent chacun : 1 1. Window according to claim 10, wherein the rigid wing (12) is suspended from fixed parts (200) of the body (1) by elastomeric elements (700) arranged symmetrically with respect to the longitudinal median plane (P) said body (1), which elastomeric elements (700) each have:
- une bordure distale (701 ) au niveau de laquelle est aménagé un organe d'accroché (700a) qui se solidarise à un organe d'accroché complémentaire (200a) aménagé sur une partie fixe (200) du corps (1 ),  - a distal edge (701) at which is arranged a hook member (700a) which is secured to a complementary hook member (200a) arranged on a fixed portion (200) of the body (1),
- une bordure proximale (702) au niveau de laquelle est aménagé un organe d'accroché (700b) qui se solidarise à un organe d'accroché complémentaire (12b) aménagé sur l'aile rigide (12).  - A proximal edge (702) at which is arranged a hook member (700b) which is secured to a complementary hook member (12b) arranged on the rigid flange (12).
EP16809476.1A 2015-11-02 2016-11-02 Multi-glazed window incorporating a noise reduction device Active EP3371984B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1560491A FR3043297B1 (en) 2015-11-02 2015-11-02 MULTI-WINDOW WINDOW INTEGRATING A NOISE REDUCTION DEVICE
PCT/FR2016/052839 WO2017077236A1 (en) 2015-11-02 2016-11-02 Multi-glazed window incorporating a noise reduction device

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EP3371984A1 true EP3371984A1 (en) 2018-09-12
EP3371984B1 EP3371984B1 (en) 2021-09-29

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DE102018126387A1 (en) * 2018-10-23 2020-04-23 Tdk Electronics Ag Sound transducer and method for operating the sound transducer
FR3097893B1 (en) 2019-06-27 2021-07-23 Saint Gobain Double wall installation
MX2022009620A (en) * 2020-02-07 2022-09-07 Saint Gobain Glazing having an rfid transponder.
CN111894409A (en) * 2020-07-24 2020-11-06 温州前瞻玻璃科技有限公司 Suspended membrane hollow glass and manufacturing method and continuous production line thereof
CN111827845A (en) * 2020-07-24 2020-10-27 温州前瞻玻璃科技有限公司 Suspended membrane hollow glass, manufacturing method, continuous production equipment and application
CN114893106B (en) * 2022-06-14 2023-06-23 郑书梅 Artificial noise-reducing intelligent door and window

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FR2766650A1 (en) 1997-07-23 1999-01-29 Technofirst LINEAR SPEAKER

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FR3043297A1 (en) 2017-05-05
EP3371984B1 (en) 2021-09-29

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