EP3371519A1

EP3371519A1 - Unit for the natural ventilation of a room, provided with a sound absorber

Info

Publication number: EP3371519A1
Application number: EP16809475.3A
Authority: EP
Inventors: Christian Carme
Original assignee: Technofirst SA
Current assignee: CARME, CHRISTIAN; Technofirst SA
Priority date: 2015-11-02
Filing date: 2016-11-02
Publication date: 2018-09-12
Anticipated expiration: 2036-11-02
Also published as: US20180313571A1; WO2017077235A1; FR3043178B1; FR3043178A1; EP3371519B1

Abstract

The invention relates to a unit for the natural ventilation of a room, comprising: - a room defined by walls; - at least one door or window comprising a stationary frame surrounding a movable operable panel; - a ventilation passage, in the door or window, that communicates with the outside of the room and with the inside of the room to allow natural ventilation therebetween; - a sound absorber suitable for attenuating the sound waves that propagate in the ventilation passage, said attenuation being achieved via the generation of a counternoise that overlays said sound waves or by absorbing all or part of said sound waves; - wherein the operable panel is movably mounted in the frame between a closed position and an intermediate open position; - the ventilation passage is defined by at least one stationary wall and one movable wall; - in the closed position, the movable and stationary walls seal the ventilation passage and prevent ventilation from taking place between the inside and the outside of the room via the ventilation passage; - and, in the intermediate open position, the movable and stationary walls free the ventilation passage and allow natural ventilation to take place between the inside and the outside of the room via the ventilation passage.

Description

INSTALLATION FOR THE NATURAL VENTILATION OF A LOCAL WITH A NOISE DAMPER

Description

Technical Field of the Invention The invention relates to an installation for the natural ventilation of a room provided with a noise damper. The invention also relates to a ventilation passage adapted to provide natural ventilation between the outside and the inside of a room. It concerns the technical field of special arrangements to ensure the natural ventilation of a room through a door or window.

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Patent documents US2014 / 01 13541 (DRIER), US 6,648,750 (WISEMAN) and WO 2004/070155 (HARDING) disclose ventilation assemblies for buildings comprising a ventilation passage installed at a door or door. 'a window.

This ventilation passage communicates between the exterior of the building and the interior of said building so as to allow natural ventilation between the outside and the inside of said building. More specifically, it has a first end, closed by a hatch and opening into the building, and a second end opening outwardly of said building. In the WiSEMAN installation, a noise damper is installed in this vent passage to reduce noise. The damper includes at least one control microphone installed for sensing noise in the ventilation passage, and at least one speaker having a vibrating membrane adapted to generate a counter-noise in the ventilation passage in response to noise picked up by the control microphone.

The WISEMAN installation has some disadvantages. First, it is necessary to provide a hatch to release the first end of the ventilation passage and initiate natural ventilation. Handling and access to this hatch is not necessarily easy for some people, especially the elderly. In addition, this hatch can be the source of thermal leakage harmful to the building insulation.

In addition installation is complex to realize and install. Indeed, the ventilation passage is either installed in the opening frame of the door or window, or between the frame and a wall masonry frame. It is therefore necessary to provide substantial modifications to the opening frames of the door or window and / or a masonry structure for the establishment of the ventilation passage.

The invention aims to remedy this state of affairs. In particular, an object of the invention is to simplify the design of the ventilation passage and its handling.

Another object of the invention is to reduce the risk of thermal leakage at the level of the ventilation passage.

Yet another object of the invention is to simplify the installation of the ventilation passage.

Disclosure of the invention. The solution proposed by the invention is an installation for the natural ventilation of a room, said installation comprising:

- a room delimited by walls,

at least one door or window installed in one of the walls of the room and comprising a fixed fixed frame framing an opening frame supporting a glazed panel,

- A ventilation passage that equips the door or window and communicates between the outside of the room and the interior of said room so as to allow natural ventilation between the outside and the inside of said room,

an active noise absorber adapted to attenuate the sound waves propagating in the ventilation passage, which attenuation is achieved by the generation of a counter-noise which is superimposed on said sound waves,

- The opening frame is mounted movably in the frame between:

o a closed position where the opening frame is secured to the frame so as to prevent any ventilation between the inside and the outside of the room through the door or window,

o and an open position where the opening frame is disengaged and removed from the sleeping frame so as to allow natural ventilation between the inside and outside of the room through the door or window.

This installation is remarkable in that:

- The ventilation passage is defined by at least one fixed wall and at least one movable wall, said fixed wall being secured to the frame or the wall and said movable wall being secured to the opening frame,

the fixed wall and the movable wall are configured so that:

when the opening frame is in the closed position, the movable wall and the fixed wall are in an arrangement sealing the ventilation passage and preventing any ventilation between the inside and outside of the room by said ventilation passage, o when the opening frame is in an intermediate open position, the movable wall and the fixed wall are in an arrangement releasing the ventilation passage and allowing natural ventilation between the inside and outside of the room only by said ventilation passage.

It is now by simply and directly manipulating the door or window, that the user can allow or prohibit ventilation through the ventilation passage. In addition, it is no longer necessary to provide a hatch as in the installation WISEMAN, which simplifies the design of the ventilation passage. In addition, the fixed and movable walls hermetically closing the ventilation passage, thermal losses are reduced or zero at this level.

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:

- Advantageously, the fixed wall and the movable wall are formed by plates respectively fixed on the opening frame and the frame, said walls having internal faces which are located in the ventilation passage, at least one of these faces being covered partially or totally of a sound insulating material.

- The ventilation passage may have a first end opening into the room and a second end opening outside said room; the fixed wall and the movable wall being configured so that when the opening frame is in the closed position, the fixed wall seals the first end of the ventilation passage.

- The ventilation passage may have a first end opening into the room and a second end opening outside said room; the fixed wall and the movable wall being configured so that when the opening frame is in the closed position, the movable wall seals the second end of the ventilation passage. - According to one embodiment, the fixed wall is integral with the frame or the wall and is formed by a profile having a L-shaped cross section, one of the branches forms a base secured to a profile of said frame; the movable wall is symmetrical with the fixed wall, which movable wall is integral with the opening frame and is formed by a profile having a L-shaped cross section, one of the branches forms a base secured to a profile of said opening frame.

According to another embodiment, the fixed wall is in the form of a flat plate secured to a profile of the fixed frame, said plate extending in a vertical plane which is in the extension of the glazed panel, to that -this ; the movable wall is in the form of a flat plate integral with a profile of the opening frame, said plate extending in a vertical plane which is in the extension of the glazed panel, opposite it.

- The plate forming the fixed wall and the inner wall of the glazed panel are advantageously in the same plane, said plate overlapping said inner wall when the opening frame is in the closed position. And the plate forming the movable wall and the outer wall of the glass panel may be in the same plane, said plate coming to overlap the outer wall of the wall when the opening frame is in the closed position.

- The movable wall and the fixed wall of the ventilation passage may be spaced from one another, this gap remaining constant from the closed position to the intermediate open position of the opening frame.

- The movable wall and the fixed wall can be configured so that when the opening frame is in the closed position, said movable wall is in close contact with said fixed wall over most of the length of said fixed wall, so that the ventilation passage is sealed.

- When the opening frame is in the intermediate open position, the movable wall is advantageously spaced from the fixed wall, so that the ventilation passage is released. - When the opening frame is in the intermediate open position, the ventilation passage preferably has a form of baffle.

- The opening frame is advantageously formed by profiles framing at least one glazed panel, which opening frame is slidably mounted in the fixed fixed frame, which frame is provided with at least one rail on which at least one of the profiles of said opening frame.

This rail is advantageously provided with a stop element when the opening frame is in the intermediate open position. Another aspect of the invention relates to a ventilation passage adapted to provide natural ventilation between the outside and the inside of a room. This passage is remarkable in that:

the ventilation passage is delimited by at least one fixed wall and at least one movable wall, said fixed wall comprising fastening means adapted to be secured to a fixed frame of a door or window or to a wall of the local and said movable wall comprising fixing means adapted to be secured to a mobile opening frame of said door or said window, which fixed wall and which movable wall are configured so that:

in a close position, the movable wall and the fixed wall are in an arrangement preventing any ventilation through the ventilation passage,

- In a remote position, the movable wall and the fixed wall are in an arrangement allowing natural ventilation only through the ventilation passage.

Description of the figuras. Other advantages and characteristics of the invention will appear better on reading the description of a preferred embodiment which follows, in reference to the accompanying drawings, given as indicative and non-limiting examples and in which:

FIG. 1 is a front view, from the inside of the room, of an installation according to the invention according to a first embodiment, the window being in the closed position,

FIG. 2 is a diagrammatic sectional view along A-A of the installation of FIG. 1,

FIG. 3 is an enlargement of the arrangement of the fixed and movable walls shown diagrammatically in FIG. 2;

FIG. 4 is a front view, from the inside of the room, of the installation according to the first embodiment, the window being in the intermediate open position,

FIG. 5 is a diagrammatic sectional view along B-B of the installation of FIG. 4,

FIG. 6 is an enlargement of the arrangement of the fixed and movable walls shown diagrammatically in FIG. 5;

FIG. 7 is a front view, from the inside of the room, of an installation according to the invention according to a second embodiment, the window being in the closed position,

FIG. 8 is a diagrammatic sectional view along C-C of the installation of FIG. 7,

FIG. 9 is a front view, from the inside of the room, of the installation according to the second embodiment, the window being in the intermediate open position,

FIG. 10 is a diagrammatic sectional view along D-D of the installation of FIG. 9,

FIG. 11 illustrates an exemplary embodiment and arrangement of an active noise absorber,

FIG. 12 illustrates another exemplary embodiment and arrangement of an active noise absorber, FIG. 13 is a schematic cross-sectional view of an installation according to the invention according to a third embodiment, the window being in the closed position,

FIG. 14 shows the installation of FIG. 13 with the window in the intermediate open position,

FIG. 15 illustrates another exemplary embodiment and arrangement of a passive noise damper.

Preferred embodiments of the invention.

The present invention relates to an installation for the natural ventilation of a room, which is characterized by a particular design of the ventilation passage and the sound damper it comprises.

Referring to Figures 1 and 2, the installation comprises a local L delimited by walls P. This room can be a room of a house or office. In this case, the walls P are typically masonry walls. At least one door or window F is installed in one of the walls P of the local L. To simplify the understanding of the invention, the remainder of the description only mentions a window F.

This window F is preferably a multi-glazed window, for example double glazing, but may be single glazed. It forms an interface between the interior of the room L and the outside of said room.

The window F in itself is of the known type. It consists of one or more leaves V, V as illustrated in Figure 1. Each leaf V, V consists of an opening frame 30, 30 '(simply called "opening" in carpentry) formed by horizontal sections 30a , 30'a and verticals 30b1, 30b2, 30'b1, 30'b2 framing at least one glazed panel 4, 4 '. The opening frames 30, 30 'have a generally rectangular shape, which borders the respective panels 4, 4' along its four sides. They are preferably identical. The opening frames 30, 30 'are movably mounted in a dormant frame

31 (simply called "frame" in carpentry) attached to the wall P. This frame 31 is secured to the wall P and more generally to the shell or the frame of the assembly where the window F. is to be arranged. formed by horizontal sections 31a and vertical 31b1, 31b2 framing the opening frames 30, 30 '.

In the case where the opening is formed of two leaves V, V, the dimensions of the opening frames 30, 30 'in width are substantially equal to half that of the frame 31 which surrounds them. Their height dimensions are substantially equal to that of the frame 31, the thickness of the profiles close. As an illustrative example only, the opening frames 30, 30 'have a width of 1.5 m and a height of 2.5 m.

The profiles 30a, 30'a, 30b1, 30b2, 30'b1, 30'b2, 31a, 31b1, 31b2 are rigid, made of metal such as aluminum or other, wood, plastic or by combining such materials.

In the example of Figures 1 and 2, the window F is a sliding window. At least the leaf V is able to move by sliding laterally on at least one horizontal carrier rail 31c mounted in the frame 31, and in particular in its lower part. The opening frame 30 may include one or more trolleys with wheels or rollers, adapted to ensure its collapse in the rail 31 c. Conventionally, the opening frame 30 is movable between a closed position (FIGS. 1 and 2) where it closes the frame 31 and an open position where he releases him. More particularly, in the closed position, the opening frame 30 is secured to the frame 31 so as to prevent any ventilation between the interior and exterior E of the room L by the door or the window F. And in the open position, the opening frame 30 is detached and spaced from the fixed frame 31 so as to allow natural ventilation between the interior and exterior E of the room L through the door or the window F. In the closed position, the two leaves V, V are in the extension of one another, while in the open position they are superimposed. In the prior art, in the closed position, the lateral vertical profile 30b1 of the opening frame 30 generally penetrates into the corresponding vertical section 31b1 of the frame 31, these two sections sealingly securing each other. Preferably, these two sections 30b1, 31b1 comprise mutual locking means for locking the leaf V in this position. Typically, in the closed position, no ventilation between the inside and the outside E of the room L, is possible by the window F. In the open position, the vertical profile 30b1 lateral of the opening frame 30 disengages from the vertical section 31 b1 corresponding to the dormant frame 31, and deviates from the latter by a predetermined distance (for example between 2 cm and 15 cm, preferably 10 cm) when the leaf V slides. Natural ventilation is possible between inside and outside E of room L, through window F.

A ventilation passage 1 is installed at the window F. This passage 1 is a device that combines with the window 1, without the need to change the design of the latter. This passage 1 can therefore be installed on an existing window F which is already placed in a wall P.

The passage 1 communicates between the outside E of the room L and the interior of said room so as to allow, if necessary, a natural ventilation between the outside E and inside said room. The manner in which this ventilation is made is explained below in the description. In the embodiment of FIGS. 1, 2, 3, 4, 5, 6, 11 and 12, the passage 1 is delimited by at least one fixed wall 1 F and at least one movable wall 1 M. The fixed wall 1 F is secured to the frame frame 31 or the wall P. It is preferably integral with the vertical profile 31 b1 of the frame frame 31. It is formed by a profile-type bracket or bracket, and has a cross section in the form of L. 3, 1 1 and 12, one of the branches 12F of the fixed wall 1 F, advantageously the smallest, forms a base which is secured to the vertical section 31 b1 of the frame frame 31. This fastening is achieved by any means suitable fasteners, in particular by screwing, clipping or gluing. In Figures 1 1 and 12, 120F bores are provided for fixing by screw. The branch 12F forming base has a width corresponding to that of the vertical profile 31 b1. Its length corresponds to that of the vertical profile 31 b1 so that it extends over the entire height of the window F.

The other branch 1 1 F of the fixed wall 1 F, preferably the largest, extends perpendicularly to the branch 12F, in a vertical plane which is in the extension of the glazed panel 4 to it. The width of the branch 1 1 F is for example between 5 cm and 30 cm. In Figures 1 and 2, the branch 1 1 F and the inner wall 4i of the glazed panel 4 are in the same plane, the inner wall as that which is located inside the local L.

The movable wall 1 is the exact symmetrical of the fixed wall 1 F. It is integral with the opening frame 30, preferably secured to the vertical section 30b1 of the opening frame 30. It is also formed by a profile of angle or angle, and present an L-shaped cross section. In FIGS. 3, 11 and 12, one of the branches 12 of the movable wall 1 M, advantageously the smallest one, forms a base which solidifies with the vertical profile 30b1 of the opening frame 30. This joining is carried out by any means of suitable fasteners, in particular by screwing, clipping or gluing. In FIGS. 11 and 12, 120M bores are provided for screw fixing. The branch 12M forming base has a width corresponding to that of the vertical profile 30b1. Its length corresponds to that of the vertical profile 30b1 so that it extends over the entire height of the window F. The other branch 1 1 M of the movable wall 1, preferably the largest, extends perpendicular to the branch 12M, in a vertical plane which is in the extension of the glass panel 4, opposite it. The width of the branch 11 is equal to that of the branch 11 F of the fixed wall 1 F. In FIGS. 1 and 2, the branch 11 M and the external wall 4e of the glazed panel 4 are in the same plane, this wall external 4th means the one located outside E of local L.

The fixed wall 1 F and the movable wall 1 M are both made of metal such as aluminum, stainless steel or other, wood, plastic, glass or plexiglass to be transparent, or even combining such materials. To simplify the design, these walls 1 F and 1 M are advantageously formed of folded sheets or bent at right angles.

In the embodiment of FIGS. 1, 2, 3, 4, 5, 6, 11 and 12, the fixed wall 1 F and the movable wall 1 M are thus interposed between the lateral vertical profile 30b1 of the opening frame 30 and the profile vertical 31 b1 corresponding to the fixed frame 31. The two branches 11 M and 11 F are located in two parallel vertical planes which are spaced from each other by a distance corresponding to the width of the branches 12 and 12F forming bases, to thicknesses. When the opening frame 30 is in the closed position, the walls 1 F and 1 M are brought together. The free end of the branch 1 1 M comes into contact with the branch 12F and the free end of the branch 1 1 F comes into contact with the branch 12M. Thus, the fixed wall 1 F and the movable wall 1 M are arranged so as to form a vertical duct of rectangular or square section, this duct delimiting the ventilation passage 1. The vertical duct delimited by the fixed wall 1 F and by the movable wall 1 M being closed on each of its faces, the ventilation passage 1 is sealed so that any ventilation between the inside and outside E of the local L is prohibited including any ventilation through said passage.

In an intermediate open position illustrated in Figures 4, 5 and 6, the leaf V slides so that the movable wall 1 away from the fixed wall 1 F by a predetermined distance. More particularly, the free end of the branch 1 1 M deviates from the branch 12F and the free end of the branch 1 1 F departs simultaneously from the same distance from the branch 12M. This predetermined distance, which corresponds to the sliding distance of the leaf V from the closed position to the intermediate open position, is for example between 2 cm and 15 cm, preferably 10 cm. In this intermediate open position, the ventilation passage 1 has a first end 10 which opens into the room L and a second end 12 which opens to the outside E of said room. They are located in two parallel planes but are spaced from each other by a distance corresponding to the width of the branches 1 1 M and 11 F. The passage 1 is thus shaped baffle, this configuration improving ventilation.

Referring to Figures 4, 5 and 6, the first end 10 is delimited on the one hand by the free end of the leg 1 1 F of the fixed wall 1 F, and on the other hand by the branch 12M of the mobile wall 1 M. In the same way, the second end 12 is delimited on the one hand by the free end of the branch 1 1 of the movable wall 1 M, and on the other hand by the branch 12F of the fixed wall 1 F. The movable wall 1 M and the fixed wall 1 F are therefore in an arrangement releasing the ventilation passage 1 and allowing a natural ventilation between the inside and the outside E of the room L by said ventilation passage, between the two ends 10 and 12. This ventilation is shown schematically in Figure 6, by the arrow drawn in the passage 1.

Thus, in the closed position, the fixed wall 1 F and the movable wall 1 M respectively close the first end 10 and the second end 12 of the ventilation passage 1 and release them in the intermediate open position.

The first end 10 and the second end 12 extend vertically along the window F, over a length substantially corresponding to that of the vertical sections 30b1, 30b2. In this way, the ventilation can be carried out all along the window F.

The ventilation passage 1 may be formed of several superimposed channels parallel to one another above. These different channels are independent and are for example delimited by plates or horizontal plates integral with the movable wall 1 M or the fixed wall 1 F, and which are installed between the two branches 1 1 M and 1 1 F. This design staged ensures a homogeneous distribution of the ventilated airflow over the entire length of the window F. This design further allows the noise damper 2 to operate over a wider frequency band between 50 Hz and 2000 Hz, preferably between 70 Hz and 1700 Hz. Indeed, the smaller the section of the channels, the higher the maximum frequency that can be attenuated the noise damper 2 is high. For example, each channel may be of square, rectangular or circular section. The length of their diagonal or their diameter is for example between 5 cm and 10 cm. The width of the openings 10 and 12 corresponds to the sliding distance of the leaf V from the closed position to the open position intermediate, for example between 2 cm and 15 cm. Advantageously, this width corresponds to the distance between the two branches 1 1 M and 1 1 F so as to reduce the turbulence of the air flow in the ventilation passage 1, and therefore the noise level of said flow. In the configuration of Figures 1 to 6, since the movable wall 1 M and the fixed wall 1 F have the same dimensions, the openings 10 and 12 have the same width. However, it can be envisaged that these openings 10 and 12 have different widths, providing branches 1 1 M and 1 1 F not having the same width. In this case, only the end 10 or the end 12 is closed in the closed position.

In Figures 4, 5 and 6, the intermediate open position is reached when the width of the ends 10 and 12 of the ventilation passage corresponds to the distance between the two branches 1 1 M and 1 1 F. For the user can easily to reach this position without further opening the leaf V, it is advantageously provided to install in the rail 31c, a member 310c forming a stop when the opening frame 30 is in the intermediate open position. This element 310c is clearly visible in Figures 2 and 5 and is for example in the form of an elastomeric rib installed in the rail 31c. When the user wishes to further open the leaf V, it suffices to slide said leaf with moderate effort, so that the elastomeric rib is retracted under the opening frame 30.

When the opening frame 30 is in the open position, i.e., moved beyond the intermediate open position (a distance greater than the aforementioned predetermined distance), the natural ventilation between the interior and the E exterior of the local L is performed in the same way as a door or a conventional open window.

In the embodiment of Figures 1, 2, 3, 4, 5, 6, 11 and 12, when the opening frame 30 is in the closed position, the vertical sections 30b1 and 31b1 do not solidarise directly because the movable wall 1 M and the fixed wall 1 F are interposed between these two sections.

Figures 13 and 14 illustrate an alternative embodiment in which the vertical sections 30b1 and 31b1 can be secured when the opening frame 30 is in the closed position.

The fixed wall 1 F is in the form of a flat plate integral with the vertical section 31 b1 of the frame 31. This plate is secured to the vertical section 31 b1 of the frame 31 by any suitable fastening means, in particular by screwing, clipage, or collage. Its length corresponds to that of the vertical profile 31 b1 so that it extends over the entire height of the window F. The plate 1 F extends in a vertical plane which is in the extension of the glazed panel 4, to that -this. The width of the plate 1 F is for example between 5 cm and 30 cm. In Figures 13 and 14, the plate 1 F and the inner wall 4i of the glazing panel 4 are in the same plane, said plate overlapping said inner wall when the opening frame 30 is in the closed position.

The movable wall 1 M is similar to the fixed wall 1 F. It is integral with the opening frame 30, preferably secured to the vertical section 30b1 of the opening frame 30. It is also formed by a flat plate. This plate is integral with the vertical profile 310b1 of the opening frame 30 by any suitable fastening means, in particular by screwing, clipping, or gluing. Its length corresponds to that of the vertical profile 30b1 so that it extends over the entire height of the window F. The plate 1 M extends in a vertical plane which is in the extension of the glass panel 4, to the opposite of it. The width of the plate 1 M corresponds to that of the plate 1 F. In Figures 13 and 14, the plate 1 M and the outer wall 4e of the glass panel 4 are in the same plane, said plate coming to cover the wall external wall Pe P when the opening frame 30 is in the closed position. As described above, the fixed wall 1 F and the movable wall 1 M are both made of metal such as aluminum, stainless steel or other, wood, plastic, glass or plexiglass to be transparent, even by combining such materials.

In FIG. 13, in the closed position, the fixed wall 1F and the movable wall 1M respectively overlap the wall P and the glazing panel 4, so that the vertical sections 30b1 and 31b1 can be joined together. In this configuration, the ventilation passage 1 is sealed, no ventilation between the interior and exterior E of the local L can not be done, including any ventilation through said passage.

In the intermediate open position illustrated in FIG. 14, the leaf V slides so that the movable wall 1 M deviates from the wall P and exceeds the vertical profile 31b1 of the fixed frame 31 by a predetermined distance, for example between 2 cm and 15 cm, preferably 10 cm. Simultaneously, the vertical section 30b1 of the opening frame 30 deviates from the movable wall 1 M and also exceeds the same distance. In this intermediate open position, the ventilation passage 1 is formed. It is delimited by the two walls 1 F and 1 M which are separated from each other by a distance corresponding to that of the vertical section 30b1 of the opening frame 30. The ventilation passage 1 furthermore has the first end 10 which opens into the local L and the second end 12 which opens to the outside E of said room, these two ends being arranged so that the passage 1 is shaped baffle.

More particularly, the first end 10 is delimited on the one hand by the free end of the fixed wall 1 F, and on the other hand by the vertical profile 30b1 of the opening frame 30. In the same way, the second end 12 is delimited on the one hand by the free end of the movable wall 1 M, and on the other hand by the profile vertical 31 b1 of the frame 31. The movable wall 1 M and the fixed wall 1 F are therefore in an arrangement releasing the ventilation passage 1 and allowing a natural ventilation between the inside and the outside E of the room L only by said ventilation passage, between the two ends. 10 and 12. This ventilation is shown schematically in Figure 14 by the arrow drawn in the passage 1.

In the embodiments of FIGS. 1, 2, 3, 4, 5, 6, 11, 12, 13 and 14, the movable wall 1 and the fixed wall 1 F are separated from one another by a distance corresponding to the thickness of the vertical section 30b 1 of the opening frame 30. This difference remains constant from the closed position to the intermediate open position.

Figures 7 to 10 illustrate another embodiment where the glazed panel 4 is not partially closed by the fixed wall 1 F and / or the movable wall M, in contrast to the embodiments described above. Indeed, in the embodiment of Figures 1, 2, 3, 4, 5, 6, 11 and 12, the fixed wall 1 F and the movable wall 1 M are disposed in the space between the vertical section 31 b1 of the 30b1 vertical profile, which is likely to reduce the total glazed area of the window F and thus the illumination of local L. And in the embodiment of Figures 113 and 14, in the closed position, the fixed wall 1 F comes partially covering the glazed panel 4, effectively reducing the glazed area.

In FIGS. 7 to 10, the fixed wall 1 F and the movable wall 1 are respectively formed by an angle or angle profile, and have an L-shaped cross section. They are both made of metal such as the aluminum, stainless steel or other, made of wood, plastic, glass or plexiglass to be transparent or even combining such materials. To simplify the design, these walls 1 F and 1 M are advantageously formed of folded sheets or bent at right angles. In FIGS. 8 and 10, one of the branches 1 1 F of the fixed wall 1F, advantageously the largest one, forms a base which solidifies with the profile vertical 31 b1 of the frame 31. This securing is achieved by any suitable fastening means, including screwing, clipping, or gluing. The base-forming branch 11F is situated in a vertical plane which is perpendicular to the plane of the window F and the frame 31. It has a width greater than that of the vertical profile 31b1, for example between 5 cm and 30 cm, so that it extends inside and outside E of the local L. Its length corresponds to that of the vertical profile 31 b1 so that it extends over the entire height of the window F. L 12F other branch of the fixed wall 1 F, preferably the smallest, extends perpendicularly to the branch 1 1 F, outside the room E L, in a vertical plane that is in the extension or parallel to the glass panel 4, the opposite of this one. The branch 12F therefore does not overlap the glazing panel 4. The width of the branch 12F is for example between 5 cm and 10 cm.

The movable wall 1 is similar to the fixed wall 1 F. It is integral with the opening frame 30, preferably secured to the vertical section 30b1 of the opening frame 30. It is also formed by a profile of the angle or angle, and has a cross section L-shaped

In Figures 8 and 10, one of the branches 1 1 M of the movable wall 1 M, preferably the largest, forms a base which is secured to the vertical profile 30b1 of the opening frame 30. This connection is achieved by any means of suitable fasteners, in particular by screwing, clipping or gluing. The branch 1 1 M forming a base has a width greater than that of the vertical section 30b1, for example between 5 cm and 30 cm, so that it extends inside and outside E of local L. Its length corresponds to that of the vertical profile 30b1 so that it extends over the entire height of the window F. The branch 1 1 M of the movable wall 1 M is parallel to the branch 1 F of the fixed wall 1 F . The other branch 12M of the movable wall 1M, advantageously the smallest, extends perpendicularly to the branch 1 1M, outside E of the local L, in a vertical plane which is parallel to the glazed panel 4, to the opposite of it. The branch 12M therefore does not overlap the glass panel 4. The width of the branch 12M is for example between 5 cm and 15 cm.

The branch 12M of the movable wall 1 M is parallel to the branch 12F of the fixed wall 1 F, but offset from the latter to the outside E of the local L, for example by a distance of between 2 cm and 15 cm. The spacing of the branches 12M and 12F makes it possible to delimit the second end 12 of the ventilation passage 1, which end opens to the outside E of the local L.

Referring to Figures 7 and 8, when the opening frame 30 is in the closed position, the walls 1 F and 1 M are brought together. More particularly, the movable wall 1 M is in close contact with the fixed wall 1 F over most of the length of said fixed wall. In practice, the branch 1 1 M of the movable wall 1 M comes into contact with the branch 1 1 F of the fixed wall 1 F. In this configuration, the ventilation passage 1 is closed hermetically so that any ventilation between the interior and exterior E of local L is prohibited by said passage.

In the intermediate open position illustrated in Figures 9 and 10, the leaf V slides so that the movable wall 1 M deviates from the fixed wall 1 F by a predetermined distance (for example between 2 cm and 15 cm, preferably 10 cm) and releases the ventilation passage 1. More particularly, the branch 1 1 M deviates from the branch 1 1 F. This distance, which corresponds to the sliding distance of the leaf V from the closed position to the intermediate open position, for example is between 2 cm and 15 cm. The branches 12M and 12F remain spaced from the same distance as in the closed position. In this intermediate open position, the ventilation passage 1 has its first end 10 which opens into the local L. This first end 10 is delimited on the one hand by the free end of the branch 1 1 F of the fixed wall 1 F and on the other hand by the free end of the branch 1 1 M of the movable wall 1 M. The movable wall 1 M and the fixed wall 1 F are therefore in an arrangement releasing the ventilation passage 1 and allowing ventilation natural between the interior and exterior E of the local L by said ventilation passage, between the two ends 10 and 12. This ventilation is shown schematically in Figure 9, by the arrow drawn in the passage 1.

The ends 10 and 12 of the ventilation passage 1 are located in two vertical planes perpendicular so that said passage is shaped baffle. Thus, in the closed position, the movable wall 1 M closes the first end 10 and releases it into the intermediate open position. The second end 12 remains permanently released.

In the embodiments of FIGS. 1, 2, 3, 4, 5, 6, 11, 12, 13 and 14, the occulted glazed surface substantially corresponds to the width of the fixed wall 1 F. In the embodiment of the figures 7, 8, 9 and 10, the occulted glazed surface substantially corresponds to the combined thickness of the movable wall 1 M and the fixed wall 1 F, these two walls being interposed between the vertical sections 30b1 and 31b1. Each of these walls 1 Mb and 1 F has, in practice, a thickness of a few millimeters, for example between 2 mm and 5 mm. As a result, in the embodiment of FIGS. 7, 8, 9 and 10, the glazed glazed surface (between 4 mm and 10 mm) is smaller than the glazed glazed surface (between 5 cm and 30 cm) of the embodiments of FIGS. Figures 1, 2, 3, 4, 5, 6, 1 1, 12, 13 and 14. A noise damper 2 is associated with the ventilation passage 1. This damper is used for active or passive noise control. An active damper 2 generates, in the ventilation passage 1, a noise level equivalent to the ambient sound level to be controlled, in particular noise originating from a source of noise located outside the room L. In practice, this damper 2 active generates a counter-noise which is superimposed on the sound waves propagating in the ventilation passage 1.

The active noise damper 2 can 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. This linear speaker is for example installed vertically over the entire length of the fixed wall 1 F or the movable wall 1 M.

The linear loudspeaker may however be replaced by several circular speakers 22 installed side by side in the fixed wall 1 F or in the movable wall 1 M and in particular, in the case where the ventilation passage 1 is staggered, in each of the channels. For example, it is possible to use ASCA loudspeakers marketed by the applicant.

In the remainder of the description, the generic term of loudspeaker, bearing the reference 22, is used that the latter is a loudspeaker as such (circular or linear) or a piezoelectric actuator. The noise damper 2 may comprise a single linear speaker or several circular speakers 22 arranged on the fixed wall 1 F or on the movable wall 1 M. To simplify the design of the damper 2 and its wiring, one However, it prefers an installation on the fixed wall 1 F. The choice of the number of loudspeakers and their arrangement depends on the sound field to attenuate, by superposition, the noises propagating in the ventilation passage 1, to increase the sound insulation when the window is in the intermediate open position. In FIG. 11, the loudspeaker 22 comprises a membrane 220 adapted to vibrate and generate a counter-noise in the ventilation passage 1. An actuator 221 is associated with the diaphragm 220. This actuator 221 is adapted to induce a movement vibratory membrane 220. It may be a piezoelectric actuator or more conventionally an actuator using an arrangement of magnets and coil electrically excited to cause the vibration of the membrane 220 which generates the noise .

At least one microphone 21 is installed in the ventilation passage 1 to capture the acoustic signals propagating therein. By way of example, a microphone of the PUS Audio brand bearing the reference POM-2246L-C33-R and manufactured by the company PUI Audio can be used.

The microphone 21 sends a signal representative of the noise in the ventilation passage 1 to a control electronics 23. Consequently, the control electronics 23 emits a control signal to the actuator 221 as a function of the acoustic signals picked up by the microphone. 21. The damper 2 thus increases the sound insulation of the window F while it is in the intermediate open position. In a manner known to those skilled in the art, the control electronics 23 can implement feedback filtration (in English "FEEDBACK") and / or anticipatory filtration (in English "FEEDFORWARD"). In the case of FEEDBACK feedback filtration, the microphone 21 is a control microphone, or an error microphone. In the case of FEEDFORWARD advance filtration or in the case of a FEEDBACK-FEEDFORWARD hybrid filtration, the microphone 21 is an error microphone arranged near the first end of the ventilation passage 1 and another reference microphone 24 (Figures 2, 3, 5, 6, 8, 10, 12) arranged near the second end 12 of said passage. By way of example, it is possible to use a reference microphone 24 of the PUI Audio brand bearing the reference POM-2246L-C33-R and manufactured by the company PUI Audio.

The assembly of FIG. 11 is that described in European patent EP0898774 (FRAUNHOFER) and the assembly of FIG. 12 is that described in US Pat. No. US 6,636,447 (FRAUNHOFER), to which the person skilled in the art can refer when necessary. .

It is not necessary that the noise damper 2 is activated when the window F is in the closed position. For this purpose, a switch is adapted to activate the noise damper 2. In Figures 1, 4, 7 and 9, the switch 5 is in the form of a toggle switch or push-button installed in the room L, on a wall P, which switch is of the type traditionally used for lighting. By manipulating this switch 5, the user can activate or deactivate the noise absorber 2, for example by controlling the power supply of the control electronics 23.

In an alternative embodiment, it is expected that the switch is controlled by the movement of the window F so that when said window passes from the closed position to the intermediate open position, said switch automatically activates the noise damper 2 active. For this purpose, a position sensor may be installed in the rail 31c. When the window is in the intermediate open position, the position sensor cooperates with the switch so that the latter automatically activates the active noise damper 2. This switch can also be adapted to automatically disable the noise absorber 2 active when the window F is in the closed position or it is not in the intermediate open position.

The damper 2 can also be passive, that is to say it is adapted to absorb all or part of the sound waves propagating in the ventilation passage 1. To do this, the internal faces of the walls 1 F and or 1 M which are located in the ventilation passage 1, may be partially or completely covered with a sound insulating material 13. In Figures 7 to 10, the inner face of the branch 1 1 of the movable wall 1 M is The inner face of the branch 12M can also be, like the inner face of the branch 1 1 F and / or the branch 12F of the fixed wall 1 F.

To further improve the reduction of noise in the ventilation passage 1, it is advantageous to combine an active attenuation by the use of the active damper 2 and a passive attenuation by the coating of all or part of the internal faces of the movable wall. 1 M and / or fixed wall 1 F.

In Figure 15, the damper 2 is passive. A flexible membrane 220 is simply suspended from the side walls of a cavity 223 formed in the ventilation passage 1, for example on the fixed wall 1 F. The diaphragm 220 closes the cavity 223 so as to be able to vibrate in the ventilation passage 1 In this configuration, the membrane 220 absorbs all or part of the sound waves propagating in the ventilation passage 1, to increase the sound insulation. The membrane 220 is for example formed by a film with elastic properties, such as an elastomer having an elastic power or a polyethylene film. The arrangement of the various elements and / or means and / or steps 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 may be made to these elements and / or means and / or steps, without departing from the spirit and scope of the invention. In particular :

- The local L may be a particular passenger compartment, such as the passenger compartment of a motor vehicle, a train, or even an aircraft. The walls P are then for example made of sheets.

- The window F may comprise a single leaf V formed by the opening frame

30 movably mounted in the frame 31, or more than two leaves.

- The two leaves V, V may be able to move by sliding laterally in parallel planes on horizontal support rails mounted to the lower part of the fixed fixed frame 31.

- The leaf V can move by sliding vertically on one or more vertical load-bearing rails mounted in the side portion of the frame 31, and in particular in the vertical sections 31 b.

The frames 30 and 31 are preferably of rectangular or square shape, but may be of polygonal shape, have one or more curved edges, etc.

- In the embodiment of Figures 1, 2, 3, 4, 5, 6, 11 and 12, the fixed wall 1 F can be arranged so that the branch 11 F is in the same plane as the outer wall of the panel 4. In this case, the movable wall 1 M is arranged so that the branch 11 M is in the same plane as the inner wall 4i of the glazed panel 4.

- In the embodiment of Figures 13 and 14, the fixed wall 1 F can be glass or plexiglass, and the noise damper 2 installed on the movable wall 1 M, so as not to obscure the transparency of the panel glazed 4 in the closed position.

- The damper 2 can be installed inside the room L as well as outside

E. - The natural ventilation in the passage 1 can be from outside the room L to the outside E; or from inside the room L to the outside E.

The element 310c forming an abutment may be in any other form that is suitable for those skilled in the art.

- The ventilation passage 1 and the noise damper 2 may be associated with an oscillating window where the opening frame 30 is rotatably mounted in the frame 31.

- The assemblies of Figures 11, 12 and 15 apply regardless of the embodiment of the fixed wall F and mobile 1 M.

- The ventilation passage 1 may consist of several movable walls and / or several fixed walls.

Claims

claims

1. Installation for natural ventilation of a room, said installation comprising:

a room (L) delimited by walls (P),

at least one door or window (F) installed in one of the walls (P) of the room (L) and comprising a fixed frame (31) framing an opening frame (30) supporting a glazed panel (4),

- A ventilation passage (1) that equips the door or window (F) and communicates between the outside (E) of the room (L) and the interior of said room so as to allow natural ventilation between the outside (E) and the interior of said room,

an active noise absorber (2) adapted to attenuate the sound waves propagating in the ventilation passage (1), which attenuation is achieved by the generation of a counter-noise which is superimposed on said sound waves,

- The opening frame (30) is movably mounted in the frame (31) between:

o a closed position where the opening frame (30) is hermetically fixed to the frame (31) so as to prevent any ventilation between the inside and outside (E) of the room (L) through the door or window (F) )

o and an open position where the opening frame (30) is separated and spaced from the frame (31) so as to allow a natural ventilation between the inside and outside (E) of the room (L) by the door or the window (F),

characterized by the fact that:

- The ventilation passage (1) is delimited by at least one fixed wall (1 F) and at least one movable wall (1 M), said fixed wall (1 F) being secured to the frame frame (31) or wall (P) and said movable wall (1 M) being integral with the opening frame (30),

the fixed wall (1 F) and the movable wall (1 M) are configured so that: o when the opening frame (30) is in the closed position, the movable wall (1 M) and the fixed wall (1 F) ) are in an arrangement sealing the ventilation passage (1) and preventing any ventilation between the interior and exterior (E) of the room (L) by said ventilation passage (1),

when the opening frame (30) is in an intermediate open position, the movable wall (1 M) and the fixed wall (1 F) are in an arrangement releasing the ventilation passage (1) and allowing a natural ventilation between the interior and exterior (E) of the room (L) only through said ventilation passage (1).

2. Installation according to claim 1, wherein the fixed wall (1 F) and the movable wall (1 M) are formed by plates respectively fixed on the opening frame (30) and on the frame (31), said walls having internal faces which are located in the ventilation passage (1), at least one of these faces being partially or totally covered with a sound insulating material (13).

3. Installation according to one of claims 1 or 2, wherein:

- The ventilation passage (1) has a first end (10) opening into the room (L) and a second end (12) opening to the outside (E) of said room,

the fixed wall (1 F) and the movable wall (1 M) are configured so that when the opening frame (30) is in the closed position, the fixed wall (1 F) closes the first end (10) of the passage ventilation (1).

4. Installation according to one of claims 1 to 3, wherein - The ventilation passage (1) has a first end (10) opening into the room (L) and a second end (12) opening to the outside (E) of said room,

the fixed wall (1 F) and the movable wall (1 M) are configured so that when the opening frame (30) is in the closed position, the movable wall

(1 M) closes the second end (12) of the ventilation passage (1).

5. Installation according to one of claims 1 to 4, wherein:

the fixed wall (1 F) is integral with the fixed frame (31) or the wall (P) and is formed by a profile having an L-shaped cross section, one of whose branches (12F) forms a base secured to a section (31 b1) of said frame,

- The movable wall (1 M) is symmetrical with the fixed wall (1 F), which movable wall is integral with the opening frame (30) and is formed by a profile having an L-shaped cross section, one of the branches (12M ) forms a base secured to a profile (30b1) of said opening frame.

6. Installation according to one of claims 1 or 2, wherein:

the fixed wall (1 F) is in the form of a flat plate integral with a profile (31b1) of the fixed frame (31), said plate extending in a vertical plane which is in the extension of the panel glazed (4), towards this one,

- The movable wall (1 M) is in the form of a flat plate integral with a profile (30b1) of the opening frame (30), said plate extending in a vertical plane which is in the extension of the glass panel (4), the opposite of this one.

7. Installation according to claim 6, wherein the plate forming the fixed wall (1 F) and the inner wall (4i) of the glazed panel (4) are in the same plane, said plate overlapping said inner wall when the opening frame (30) is in the closed position.

8. Installation according to one of claims 6 or 7, wherein the plate forming the movable wall (1 M) and the outer wall (4e) of the glass panel (4) are in the same plane, said plate coming into recovery of the outer wall (Pe) of the wall (P) when the opening frame (30) is in the closed position.

9. Installation according to one of claims 1 to 8, wherein the movable wall (1 M) and the fixed wall (1 F) of the ventilation passage (1) are spaced apart from each other, this difference remaining constant from the closed position to the intermediate open position of the opening frame (30). 0. Installation according to one of claims 1 or 2, wherein the movable wall (M) and the fixed wall (1 F) are configured so that when the opening frame (30) is in the closed position, said movable wall (1 M) is in close contact with said fixed wall (1 F) over most of the length of said fixed wall, so that the ventilation passage (1) is sealed.

1 1. Installation according to claim 10, wherein when the opening frame (30) is in the intermediate open position, the movable wall (1 M) is spaced from the fixed wall (1 F), so that the ventilation passage (1) is released.

12. Installation according to one of claims 1 to 11, wherein when the opening frame (30) is in the intermediate open position, the ventilation passage (1) has a form of baffle.

13. Installation according to one of claims 1 to 12, wherein the opening frame (30) is formed by profiles (30a, 30b1, 30b2) framing at least the glazing panel (4), which opening frame (30) is slidably mounted in the fixed fixed frame (31), which frame (31) is provided with at least one rail (31c) on which at least one of the profiles (30a) of said opening frame (30) moves.

14. Installation according to claim 13, wherein the rail (31c) is provided with a member (310c) forming a stop when the opening frame (30) is in the intermediate open position.

15. Ventilation passage (1) adapted to provide natural ventilation between the outside (E) and the interior of a room (L),

characterized by the fact that the ventilation passage (1) is delimited by at least one fixed wall (1 F) and at least one movable wall (1 M), said fixed wall (1 F) comprising fixing means adapted to to fasten on a frame (31) of a door or window (F) or on a wall (P) of the room (L) and said movable wall (1 M) comprising fastening means adapted to become solidary on a mobile opening frame (30) of said door or said window (F), which fixed wall (1 F) and which movable wall (1 M) are configured so that:

- in a close position, the movable wall (1 M) and the fixed wall (1 F) are in an arrangement preventing any ventilation through the ventilation passage (1),

- In a remote position, the movable wall (1 M) and the fixed wall (1 F) are in an arrangement allowing natural ventilation only through the ventilation passage (1).