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EP4276377A1 - Air treatment terminal unit for a building - Google Patents

Air treatment terminal unit for a building Download PDF

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Publication number
EP4276377A1
EP4276377A1 EP23172821.3A EP23172821A EP4276377A1 EP 4276377 A1 EP4276377 A1 EP 4276377A1 EP 23172821 A EP23172821 A EP 23172821A EP 4276377 A1 EP4276377 A1 EP 4276377A1
Authority
EP
European Patent Office
Prior art keywords
terminal unit
envelope
plenum
diffuser
air
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP23172821.3A
Other languages
German (de)
French (fr)
Inventor
Stéphanie MILTON
Loïc REAT
Vincent Arcis
Julien CHAUVET
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.)
Aero Textile Concept
France Air SA
Original Assignee
Aero Textile Concept
France Air 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 Aero Textile Concept, France Air SA filed Critical Aero Textile Concept
Publication of EP4276377A1 publication Critical patent/EP4276377A1/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F24F13/0218—Flexible soft ducts, e.g. ducts made of permeable textiles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
    • F24F2013/0608—Perforated ducts

Definitions

  • the present invention relates to a terminal air treatment unit for a building.
  • a ventilation network is generally installed which makes it possible to bring in and/or extract air from different locations in the building, each equipped with a terminal air treatment unit.
  • Each terminal unit comprises a plenum inside which the air circulates and is distributed between a duct of the ventilation network, opening into the plenum, and a diffuser through which the air passes, being blown into the interior of the building when the ventilation network is at excess pressure or by being taken from inside the building when the ventilation network is at depression.
  • the diffuser is fixed to the plenum, being arranged across a corresponding opening in the plenum, and the plenum integrates a tube around which the duct of the ventilation network is attached and fixed.
  • the diffuser and the plenum are traditionally made as rigid parts, although in the past alternatives have been proposed.
  • the diffuser is often made of a steel or aluminum plate, which gives the diffuser good air diffusion characteristics, as well as a popular aesthetic.
  • the plenum is often made up of a metal box, having the shape of a parallelepiped or a truncated pyramid. This metal box, which is generally arranged in a false ceiling, is appreciated for its fire resistance, its ability to be quickly assembled to the diffuser, and its possibility of being placed in either negative pressure or positive pressure internally.
  • a metal box has drawbacks.
  • the box due to its rigid structure, the box takes up space during transport and storage and can make it unusable if the false ceiling is cluttered or too small.
  • the weight of the box makes it tedious to pause it at height, in particular its arrangement in the false ceiling and/or its hanging from a ceiling.
  • WO01/04547A1 discloses an air distribution duct made up of four panels and which is shaped into a portion of tube, which cannot be integrated into the plane of a false ceiling. This conduit is directly connected to an air supply manifold, without the use of a plenum enclosure.
  • EP0175892A1 discloses another air distribution duct consisting of a deformable upper part and a concavity gutter facing upwards, which cannot be integrated into the plan of a false ceiling.
  • WO2020/096966A1 discloses, for its part, an air diffusion device which comprises a circumferential panel and a lower fabric panel, without using a rigid plate.
  • WO2020/252365A1 discloses a nozzle designed to be attached laterally to a ventilation duct, made of a fabric tube and which can be equipped with a conical end piece, again without using a rigid plate. These materials are not practical to implement and are difficult to integrate into a plenum.
  • the aim of the present invention is to propose a new terminal air treatment unit, which, while being efficient and adapted to market expectations, is more practical.
  • the invention relates to a terminal air treatment unit for a building.
  • the terminal unit comprises a rigid diffuser and a flexible plenum, as well as assembly means which securely assemble the diffuser and the plenum to one another.
  • the diffuser comprises a plate which (i) is made of a first material, (ii) has two flat faces, opposite each other, namely an interior face, which is turned towards the plenum, and a face exterior, (iii) is adapted to extend continuously in a plane formed by a false ceiling when the terminal unit is installed in a free volume separating a ceiling (4) and said false ceiling, and (iv) is perforated by air deflection passages which connect the interior and exterior faces to each other.
  • the plenum comprises an envelope which (i) defines an air distribution volume, (ii) is made of a second material, which is more flexible than the first material and which is deformable by hand so as to be able to pass the envelope reversibly between an deployed configuration and a contracted configuration, the air distribution volume being greater when the envelope is in the deployed configuration than when the envelope is in the contracted configuration, (iii) includes a main body which closes the air distribution volume except at at least two through openings of the main body, namely a first opening, which is covered by the inner face of the plate, and a second opening, and (iv) also includes a sleeve which extends in length from the main body outside the air distribution volume between two opposite longitudinal ends of the sleeve, namely a first end, which is fitted to the second opening, and a second end, which is suitable for connection to a ventilation duct.
  • the invention provides that an envelope of the plenum, which defines the internal volume of the plenum in which the air circulates and is distributed between the diffuser and a ventilation duct, is made of a material, which is flexible compared to the material rigid in which an air diffusion plate belonging to the diffuser is produced, and which is deformable by hand to allow the envelope to be passed reversibly between respectively deployed and contracted configurations.
  • the air diffusion plate facilitates the integration of the terminal unit into a false ceiling when the terminal unit.
  • the envelope When the terminal air treatment unit according to the invention is in service, the envelope is in deployed configuration and internally ensures a usual air distribution, it being understood that the material of the plenum envelope has a level airtightness, which is suitable.
  • the diffuser of this terminal unit is, advantageously in a reversible manner, fixedly assembled to the flexible plenum, by covering an opening of a main body of the envelope of the plenum, while another opening of this main body opens into a sleeve of the envelope, which extends from the main body outside the aforementioned internal volume and which can be connected to the ventilation duct in an easy and reliable manner, as detailed below.
  • the envelope of the plenum makes it particularly easy to install at height, due to the intrinsic flexibility and lightness of this envelope, particularly compared to a metal box as mentioned above. Likewise, due to its flexibility, the plenum envelope attenuates noise coming from the ventilation duct, particularly compared to a metal box as mentioned above.
  • the plenum envelope can be stored and transported in a contracted configuration, which is particularly practical and economical.
  • the flexible and deformable material constituting the envelope of the plenum is advantageously made, partly or entirely, of a textile material and/or of a material other than a textile material.
  • this flexible and deformable material is advantageously provided with additional functionalities, for example being washable and/or non-flammable and/or air purifying, in particular being antibacterial, antifungal, virucidal and/ or depollutant.
  • the terminal air treatment unit according to the invention can advantageously be used both to blow air inside a building, by increasing the pressure inside the envelope. of its plenum which thus tends to be maintained in deployed configuration by its internal overpressure, only to ensure the return of air from the interior of a building, by means of the depression of the interior of the envelope of its plenum and the use of ad hoc means to maintain the shape of the envelope in the deployed configuration, such means being detailed subsequently.
  • the flexible plenum of the terminal air treatment unit according to the invention advantageously has the same advantages as a metal box as mentioned above, without suffering from the disadvantages linked to its rigidity and its weight. .
  • a terminal air treatment unit 1 for a building 2 This terminal unit 1 makes it possible to treat, in particular to renew, the air of the building 2 and for this purpose belongs to a ventilation network, which brings or extracts air with respect to the interior of the building 2 and whose air exchanges with the interior of a room 3 of the building 2 are carried out at the level of the terminal unit 1, arranged in this room 3, typically on ceiling 4 of the latter.
  • the nature of building 2 is not restrictive, this building can be both a dwelling and a tertiary building, that is to say a building which receives the public and/or which is the place of tertiary activities.
  • the terminal unit 1 comprises two main components which are a diffuser 10 and a plenum 20.
  • the diffuser 10 is rigid compared to the plenum 20, the latter can thus be described as flexible compared to the diffuser 10.
  • the diffuser 10 and the plenum 20 are fixedly assembled l 'to each other by assembly means 30, more specifically visible on the Figure 3 .
  • assembly means 30, which will be detailed later, are advantageously reversible in the sense that they allow the diffuser 10 and the plenum 20 to be detached and reattached at will.
  • the diffuser 10 comprises a plate 11 which can be described as rigid in the sense that the material constituting the plate 11 is rigid, freezing the geometric shape of the plate 11, without the possibility of altering this shape other than by damaging the plate 11.
  • the material constituting the plate 11 comprises or consists of a metallic material, such as steel or aluminum, and/or a plastic material, such as rigid PVC.
  • the plate 11 is perforated by through passages 14 which connect the interior 12 and exterior 13 faces to each other. These through passages 14 allow the air to pass through the plate 11, being deflected so as to to better distribute the air thus diffused.
  • the air passes through the plate 11 from the interior face 12 to the exterior face 13 via the through passages 14 which deflect the air flows circulating there so as to distribute the corresponding air intake throughout substantially the entire room 3; when the terminal unit 1 is used to extract air from the room 3, the air passes through the plate 11 from the outer face 13 to the inner face 12 via the through passages 14 which deflect the air flows circulating there so as to distribute the corresponding air intake from substantially the entire room 3.
  • the plenum 20 includes an envelope 21 defining an internal volume V21.
  • the internal volume V21 allows the air circulating there to be distributed inside the envelope 21.
  • the envelope 21 is made of a material which is more flexible than the material constituting the plate 11. This material of the envelope 21 is flexible, being deformable by hand so as to be able to pass the envelope 21 between a configuration deployed, illustrated on the figures 1 to 3 , and a contracted configuration, illustrated in the figure 4 .
  • the internal volume V21 is larger when the envelope 21 is in deployed configuration only when the envelope 21 is in contracted configuration.
  • the latter includes a main body 22 delimiting the internal volume V21, as well as a sleeve 23 which extends in length from the main body 22 outside the internal volume V21, and this between two ends 23A and 23B of the sleeve 23, opposite each other in the longitudinal direction of this sleeve.
  • the material constituting the envelope 21 In practice, multiple embodiments are possible for the material constituting the envelope 21, it being noted that, having regard to the fact that the envelope 21 ensures, through its internal volume V21, the technical function of air distribution, we understands that this material is at least partially airtight, particularly in the sense that its air permeability is less than 14 l/(sm 2 ).
  • the material constituting the envelope 21 comprises or consists of one or more textile materials, a textile material being a material resulting from spinning then weaving and/or calendering fibers, coated or not.
  • textile materials are nylon, cotton, polyester, fiberglass, etc.
  • the material constituting the envelope 21 comprises or consists of one or more materials other than a textile material, that is to say one or more materials not resulting from weaving and/or calendering of fibers.
  • materials other than textile material are PVC film, polyethylene film, linoleum, vinyl, rubber, resin, etc.
  • the material constituting the envelope 21 is a composite or complex material, that is to say a material consisting of an assembly of several components, having where appropriate different respective natures, these components forming respectively layers, which are superimposed on each other, and/or respectively forming pieces, possibly preformed, of the same layer, which are assembled together to create a patchwork.
  • the envelope 21 can result from the assembly of several parts of different or identical structures.
  • the assembly of the first and the other components is advantageously carried out by sewing ; for example, in the embodiment illustrated in the figures, the envelope 21 is thus formed of six pieces sewn edge to edge, namely four peripheral pieces and a top bottom piece, which jointly form the main body 22, and a part forming the sleeve 23.
  • the assembly of the first and other components is advantageously produced other than by sewing, in particular by stapling, heat sealing, etc.
  • the material constituting the envelope 21 comprises two textile layers, where appropriate individually identical, which are superimposed, and a thermally insulating layer, which is interposed between the two textile layers and which is constituted of a material other than a textile material, such as rock wool or wadding, the two textile layers being advantageously sewn together as indicated schematically in dotted lines on the figure 2 And 4 .
  • the material constituting the envelope 21 advantageously comes at least in part from recycled materials.
  • the main body 22 delimits the internal volume V21 by closing the latter over its entire perimeter surface, except at the level of two through openings 22A and 22B of the main body 22, which are distinct from each other and which are advantageously located on different respective sides of the main body 22.
  • the geometric shape of the main body 22 is not limiting, being for example generally parallelepiped or in the shape of a truncated pyramid.
  • the opening 22A of the main body 22 is covered by the interior face 12 of the plate 11.
  • the plate 11 closes, as it were, the opening 22A over the entire length. the extent of the latter, however remembering that the plate 11 is perforated by the through passages 14.
  • This arrangement of the plate 11 with respect to the main body 22 is advantageously used for the purposes of assembling the diffuser 10 and from the plenum 20 to each other.
  • the assembly means 30 comprise two elements 31 and 32 designed to cooperate, in particular mechanically, with one another so as to fixedly assemble the diffuser 10 and the plenum 20 to one another, the where appropriate in a reversible manner: the element 31 is carried by the diffuser 10 and is arranged on a peripheral portion of the interior face 12 of the plate 11, inside which the through passages 14 are located, while the element 32 is carried by the plenum 20 and is arranged on one edge of the opening 22A.
  • elements 31 and 32 correspond to, respectively, a hook-textured strip and a loop-textured strip, which belong to a hook-and-loop fastening system, commonly called a "velcro" system (registered trademark).
  • a hook-and-loop fastening system commonly called a "velcro" system (registered trademark).
  • element 31 is made up of a group of male elements, distributed on the interior face 12 of plate 11, and the element 32 is made up of a group of female elements, distributed on the edge of the opening 22A and able to receive and be engaged by the aforementioned male elements.
  • the opening 22B of the main body 22 is, for its part, abutting the end 23A of the sleeve 23, this end 23A being adjusted to the opening 22B, so that the sleeve 23 opens entirely into the opening 22B via its end 23A.
  • the interior of the main body 22 and the interior of the sleeve 23 are thus in free fluidic communication with each other.
  • the end 23B of the sleeve 23 is, for its part, adapted to be connected to a ventilation duct 5 belonging to the ventilation network mentioned above.
  • the end 23B of the sleeve 23 is provided with an elastic fixing collar 24, which is adapted for, by elastic deformation, to be reported around and grip the ventilation duct 5, as shown schematically on the figure 2 And 3 .
  • the fixing collar 24 has an internal diameter which varies, by means of the elastic deformation of this fixing collar 24, between a minimum value, which is reached when the fixing collar 24 is at rest and which is less than the external diameter of the ventilation duct 5, and a maximum value, which is reached when the fixing collar 24 is stretched and which is greater than the external diameter of the ventilation duct 5.
  • the connection between the sleeve 23 and the ventilation duct 5 is thus particularly easy, whatever the specificities of the ventilation duct 5.
  • the plenum 20 includes a cuff 40 making it possible to filter the air circulating inside the plenum 20.
  • the cuff 40 is arranged inside the internal volume V21 of the envelope 21 and is fixed to the main body 22 of this envelope, extending in length in the longitudinal extension of the sleeve 23, and this between two ends 40A and 40B of the cuff 40, opposite one to the other in the longitudinal direction of this cuff.
  • the end 40A of the cuff 40 is adjusted to the opening 22B of the main body 22, so that the sleeve 23 opens entirely into the cuff 40, via the end 23A of the sleeve 23 and the end 40A of the cuff 40.
  • the end 40B of the cuff 40 is, for its part, closed, which gives the cuff an overall shape of a tubular pocket, open only at its end 40A, as clearly visible on the Figure 3 .
  • the material of the latter is porous, being adapted to retain fine particles present in the air.
  • the specificities of the material constituting the cuff 40 are not limiting as long as it has an air filtration power, it being noted that this material is advantageously flexible, in particular presenting a flexibility similar to that of the envelope 21 .
  • the attachment of the cuff 40 to the main body 22 is advantageously removable, thus making it possible to easily detach the cuff 40 from the main body 22 and to replace it regularly.
  • This removable fastening is achieved by any appropriate means, for example a hook-and-loop fastening system, a zipper system, such as a “Zipper” fastener (registered trademark), etc.
  • the terminal unit 1 advantageously comprises hooking means 50 which make it possible to suspend the diffuser 10 and/or the plenum 20 from the ceiling 4.
  • the attachment means 50 act exclusively on the plenum 20, while the diffuser 10 is held in place by its fixed assembly with the plenum 20: for this purpose, as clearly visible on the figures 1 And 2 , the attachment means 50 comprise attachment elements 51, carried by the envelope 21, and hangers 52, connecting the attachment elements 51 to the ceiling 4.
  • the attachment elements 51 correspond, for example, to slides which are fixed, by sewing or gluing, projecting externally to the envelope 21.
  • the hangers 52 are, for example, ropes which, upon installation, are stretched between the attachment elements 51 and the ceiling 4 .
  • the hooking means 50 comprise fastening elements, carried by the plate 11 of the diffuser 10, and hangers, connecting these attachment elements to the ceiling 4.
  • the attachment elements carried by the diffuser 10 are holes provided on the peripheral edge of the plate 11 and the hangers are ropes, passing through these holes are stretched between the plate 11 and the ceiling 4.
  • the assembly means 30 are designed to be reversible, it is possible to transport the diffuser 10 and the plenum 20 separately, which further improves the handling of the terminal unit 1, then to assemble the diffuser 10 and the plenum 20 only shortly before putting the terminal unit 1 into service, in particular on the commissioning site, that is to say in building 2 in the example considered here, this assembly being quick and easy.
  • the diffuser 10 and/or the plenum 20 are suspended from the ceiling 4 by the hanging means 50: the corresponding installation operations are facilitated thanks, among other things, to , the low weight of the terminal unit 1 and the ease of connection between the sleeve 23 and the ventilation duct 5.
  • the terminal unit 1 is thus installed in a free volume separating the ceiling 4 and a false -ceiling of room 3, so that, at the end of installation, the plate 11 of the diffuser 10 extends continuously in the plane formed by this false ceiling. Due to its flexible structure, the envelope 21 easily adapts to the free volume between the ceiling 4 and the aforementioned false ceiling, including when this free volume is reduced and/or cluttered.
  • the terminal unit 1 is aesthetic, in the sense that the exterior face 13 of the plate 11 of its diffuser 10 meets the visual standards of the market, in particular in the presence of a false ceiling, and it is efficient in aeraulic terms, in the sense that the envelope 21 of its plenum 20 ensures good distribution of air with respect to its diffuser 10 which, for its part, ensures good diffusion of the air through its plate 11.
  • the terminal unit 1 is also efficient in terms of acoustics, in the sense that, thanks to its flexible structure, the envelope 21 attenuates the noise coming from the ventilation duct 5.
  • the terminal unit 1 can be used with, indifferently, an overpressure ventilation network and a depression ventilation network.
  • the ventilation duct 5 supplies the terminal unit 1 with pressurized air which fills the internal volume V21 before being evacuated into room 3 of building 2 through the plate 11, which tends, by inflation effect, to pass and maintain the envelope 21 in deployed configuration.
  • the ventilation duct 5 draws air from the room 3 through the terminal unit 1, by means of the circulation of the air through the plate 11 then in the internal volume V21: to counteract the suction effect prevailing in the internal volume V21 and prevent the latter from tending to cause the envelope 21 to assume its contracted configuration while the terminal unit 1 is in service
  • the terminal unit 1 advantageously comprises holding means 60 which make it possible to maintain the shape of the envelope 21 in the deployed configuration, including during depression of the internal volume V21, while being able to be neutralized to pass the envelope 21 from the deployed configuration to the contracted configuration.
  • the holding means 60 In practice, several embodiments are possible for the holding means 60.
  • One possibility consists of these holding means 60 comprising all or part of the hooking means 50 since the latter act on the plenum 20: in the example considered in the figures, this amounts to saying that the holding means 60 comprise the attachment elements 51 and the hangers 52 since the latter, by their fixed length once they are stretched between the ceiling 4 and the attachment elements 51 tend to counter the contraction of the envelope 21 in the deployed configuration, while, once the lines 52 are released, neither the lines 52 nor the attachment elements 51 prevent pass the envelope 51 in the contracted configuration.
  • this flexible armature including for example one or more elastic hoops which are attached to dedicated sheaths of the envelope 21, acts mechanically on the envelope 21 to counter the contraction of this envelope in the deployed configuration, this armature then being neutralizable by release for allow the envelope 21 to be returned to the contracted configuration.
  • the terminal unit 1 can be connected to several ventilation ducts, by providing that its plenum 20 includes several sleeves, individually similar to the sleeve 23 but opening into the internal volume V21 of its envelope 21 through as many respective openings, individually similar to opening 22B.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Duct Arrangements (AREA)

Abstract

L'unité terminale (1) comporte un diffuseur (10) rigide et un plénum (20) souple, ainsi que des moyens (30) pour assembler fixement le diffuseur et le plénum. Le diffuseur comporte une plaque ajourée par des passages de déflexion d'air (14) reliant des faces planes intérieure (12) et extérieure (13) de la plaque et qui est adaptée pour s'étendre de manière continue dans un plan que forme un faux-plafond lorsque l'unité terminale (1) est installée dans un volume libre séparant un plafond et un faux-plafond. Le plénum comporte une enveloppe (21) définissant un volume de répartition d'air (V21) et constituée d'un matériau, plus souple que le matériau du diffuseur et déformable à la main pour passer l'enveloppe entre des configurations déployée et contractée. L'enveloppe inclut un corps principal (22), qui ferme le volume de répartition d'air hormis au niveau d'une première ouverture (22A), recouverte par la face intérieure de la plaque, et d'une seconde ouverture (22B), et un manchon (23) s'étendant en longueur depuis le corps principal à l'extérieur du volume de répartition d'air entre une extrémité (23A) du manchon, ajustée à la seconde ouverture, et une extrémité opposée (23B) du manchon, adaptée pour être raccordée à une gaine de ventilation (5).

Figure imgaf001
The terminal unit (1) comprises a rigid diffuser (10) and a flexible plenum (20), as well as means (30) for fixedly assembling the diffuser and the plenum. The diffuser comprises a plate perforated by air deflection passages (14) connecting interior (12) and exterior (13) flat faces of the plate and which is adapted to extend continuously in a plane formed by a false ceiling when the terminal unit (1) is installed in a free volume separating a ceiling and a false ceiling. The plenum comprises an envelope (21) defining an air distribution volume (V21) and made of a material, more flexible than the material of the diffuser and deformable by hand to pass the envelope between deployed and contracted configurations. The envelope includes a main body (22), which closes the air distribution volume except at a first opening (22A), covered by the interior face of the plate, and a second opening (22B). , and a sleeve (23) extending lengthwise from the main body outside the air distribution volume between one end (23A) of the sleeve, fitted to the second opening, and an opposite end (23B) of the sleeve, adapted to be connected to a ventilation duct (5).
Figure imgaf001

Description

La présente invention concerne une unité terminale de traitement d'air pour un bâtiment.The present invention relates to a terminal air treatment unit for a building.

Afin de traiter, en particulier renouveler, l'air d'un bâtiment, on y installe généralement un réseau de ventilation qui permet d'amener et/ou d'extraire de l'air vis-à-vis de différents endroits du bâtiment, équipés chacun d'une unité terminale de traitement d'air. Chaque unité terminale comprend un plénum à l'intérieur duquel l'air circule et se répartit entre une gaine du réseau de ventilation, débouchant dans le plénum, et un diffuseur à travers lequel l'air passe, en étant insufflé à l'intérieur du bâtiment lorsque le réseau de ventilation est en surpression ou bien en étant repris depuis l'intérieur du bâtiment lorsque le réseau de ventilation est en dépression. En général, le diffuseur est fixé sur le plénum, en étant agencé en travers d'une ouverture correspondante du plénum, et le plénum intègre une tubulure autour de laquelle la gaine du réseau de ventilation est rapportée et fixée.In order to treat, in particular renew, the air in a building, a ventilation network is generally installed which makes it possible to bring in and/or extract air from different locations in the building, each equipped with a terminal air treatment unit. Each terminal unit comprises a plenum inside which the air circulates and is distributed between a duct of the ventilation network, opening into the plenum, and a diffuser through which the air passes, being blown into the interior of the building when the ventilation network is at excess pressure or by being taken from inside the building when the ventilation network is at depression. In general, the diffuser is fixed to the plenum, being arranged across a corresponding opening in the plenum, and the plenum integrates a tube around which the duct of the ventilation network is attached and fixed.

Le diffuseur et le plénum sont traditionnellement réalisés sous forme de pièces rigides, bien que, par le passé, des alternatives aient été proposées. En particulier, le diffuseur est souvent constitué d'une plaque en acier ou en aluminium, ce qui confère au diffuseur de bonnes caractéristiques de diffusion de l'air, ainsi qu'une esthétique appréciée. De son côté, le plénum est souvent constitué d'un caisson métallique, ayant la forme d'un parallélépipède ou d'une pyramide tronquée. Ce caisson métallique, qui est généralement agencé dans un faux-plafond, est apprécié pour sa résistance au feu, sa capacité d'assemblage rapide au diffuseur, et sa possibilité d'être indifféremment mis intérieurement en dépression ou en surpression. Toutefois, un tel caisson métallique présente des inconvénients. En effet, de par sa structure rigide, le caisson prend de la place lors de son transport et de son stockage et peut le rendre inutilisable si le faux-plafond est encombré ou trop réduit. De plus, le poids du caisson rend fastidieuse la pause de ce dernier en hauteur, en particulier son agencement dans le faux-plafond et/ou son accrochage à un plafond.The diffuser and the plenum are traditionally made as rigid parts, although in the past alternatives have been proposed. In particular, the diffuser is often made of a steel or aluminum plate, which gives the diffuser good air diffusion characteristics, as well as a popular aesthetic. For its part, the plenum is often made up of a metal box, having the shape of a parallelepiped or a truncated pyramid. This metal box, which is generally arranged in a false ceiling, is appreciated for its fire resistance, its ability to be quickly assembled to the diffuser, and its possibility of being placed in either negative pressure or positive pressure internally. However, such a metal box has drawbacks. Indeed, due to its rigid structure, the box takes up space during transport and storage and can make it unusable if the false ceiling is cluttered or too small. In addition, the weight of the box makes it tedious to pause it at height, in particular its arrangement in the false ceiling and/or its hanging from a ceiling.

WO01/04547A1 divulgue un conduit de distribution d'air constitué de quatre panneaux et qui est conformé en une portion de tube, qui ne peut pas être intégrée dans le plan d'un faux plafond. Ce conduit est directement raccordé à un collecteur d'alimentation en air, sans utilisation d'une enveloppe de plénum. EP0175892A1 divulgue un autre conduit de distribution d'air constitué d'une partie supérieure déformable et d'une gouttière à concavité tournée vers le haut, qui ne peut pas être intégrée dans le plan d'un faux plafond. WO2020/096966A1 divulgue, quant à lui, un dispositif de diffusion d'air qui comporte un panneau circonférentiel et un panneau inférieur en tissu, sans utiliser de plaque rigide. Enfin, WO2020/252365A1 divulgue une buse conçue pour être rapportée latéralement sur une gaine de ventilation, constituée d'un tube en tissu et qui peut être équipée d'un embout terminal conique, là encore sans utiliser de plaque rigide. Ces matériels ne sont pas pratiques à mettre en oeuvre et sont difficiles à intégrer dans un plénum. WO01/04547A1 discloses an air distribution duct made up of four panels and which is shaped into a portion of tube, which cannot be integrated into the plane of a false ceiling. This conduit is directly connected to an air supply manifold, without the use of a plenum enclosure. EP0175892A1 discloses another air distribution duct consisting of a deformable upper part and a concavity gutter facing upwards, which cannot be integrated into the plan of a false ceiling. WO2020/096966A1 discloses, for its part, an air diffusion device which comprises a circumferential panel and a lower fabric panel, without using a rigid plate. Finally, WO2020/252365A1 discloses a nozzle designed to be attached laterally to a ventilation duct, made of a fabric tube and which can be equipped with a conical end piece, again without using a rigid plate. These materials are not practical to implement and are difficult to integrate into a plenum.

Le but de la présente invention est de proposer une nouvelle unité terminale de traitement d'air, qui, tout en étant performante et adaptée aux attentes du marché, soit plus pratique.The aim of the present invention is to propose a new terminal air treatment unit, which, while being efficient and adapted to market expectations, is more practical.

A cet effet, l'invention a pour objet une unité terminale de traitement d'air pour un bâtiment. L'unité terminale comporte un diffuseur rigide et un plénum souple, ainsi que des moyens d'assemblage qui assemblent fixement le diffuseur et le plénum l'un à l'autre. Le diffuseur comporte une plaque qui (i) est constituée d'un premier matériau, (ii) présente deux faces planes, opposées l'une à l'autre, à savoir une face intérieure, qui est tournée vers le plénum, et une face extérieure, (iii) est adaptée pour s'étendre de manière continue dans un plan que forme un faux-plafond lorsque l'unité terminale est installée dans un volume libre séparant un plafond (4) et ledit faux-plafond, et (iv) est ajourée par des passages de déflexion d'air qui relient l'une à l'autre les faces intérieure et extérieure. Le plénum comporte une enveloppe qui (i) définit un volume de répartition d'air, (ii) est constituée d'un second matériau, qui est plus souple que le premier matériau et qui est déformable à la main de manière à pouvoir passer l'enveloppe de manière réversible entre une configuration déployée et une configuration contractée, le volume de répartition d'air étant plus grand lorsque l'enveloppe est en configuration déployée que lorsque l'enveloppe est en configuration contractée, (iii) inclut un corps principal qui ferme le volume de répartition d'air hormis au niveau d'au moins deux ouvertures traversantes du corps principal, à savoir une première ouverture, qui est recouverte par la face intérieure de la plaque, et une seconde ouverture, et (iv) inclut également un manchon qui s'étend en longueur depuis le corps principal à l'extérieur du volume de répartition d'air entre deux extrémités longitudinales opposées du manchon, à savoir une première extrémité, qui est ajustée à la seconde ouverture, et une seconde extrémité, qui est adaptée pour être raccordée à une gaine de ventilation.To this end, the invention relates to a terminal air treatment unit for a building. The terminal unit comprises a rigid diffuser and a flexible plenum, as well as assembly means which securely assemble the diffuser and the plenum to one another. The diffuser comprises a plate which (i) is made of a first material, (ii) has two flat faces, opposite each other, namely an interior face, which is turned towards the plenum, and a face exterior, (iii) is adapted to extend continuously in a plane formed by a false ceiling when the terminal unit is installed in a free volume separating a ceiling (4) and said false ceiling, and (iv) is perforated by air deflection passages which connect the interior and exterior faces to each other. The plenum comprises an envelope which (i) defines an air distribution volume, (ii) is made of a second material, which is more flexible than the first material and which is deformable by hand so as to be able to pass the envelope reversibly between an deployed configuration and a contracted configuration, the air distribution volume being greater when the envelope is in the deployed configuration than when the envelope is in the contracted configuration, (iii) includes a main body which closes the air distribution volume except at at least two through openings of the main body, namely a first opening, which is covered by the inner face of the plate, and a second opening, and (iv) also includes a sleeve which extends in length from the main body outside the air distribution volume between two opposite longitudinal ends of the sleeve, namely a first end, which is fitted to the second opening, and a second end, which is suitable for connection to a ventilation duct.

Une des idées à la base de l'invention est de chercher à associer un diffuseur rigide, bien apprécié pour ses qualités aérauliques et esthétiques, avec un plénum astucieusement souple. Ainsi, l'invention prévoit qu'une enveloppe du plénum, qui définit le volume interne du plénum dans lequel l'air circule et se répartit entre le diffuseur et une gaine de ventilation, est réalisée en un matériau, qui est souple comparativement au matériau rigide dans lequel est réalisée une plaque de diffusion d'air appartenant au diffuseur, et qui est déformable à la main pour permettre de passer l'enveloppe de manière réversible entre des configurations respectivement déployée et contractée. La plaque de diffusion d'air facilite l'intégration de l'unité terminale dans un faux-plafond lorsque l'unité terminale. Lorsque l'unité terminale de traitement d'air conforme à l'invention est en service, l'enveloppe est en configuration déployée et assure intérieurement une répartition d'air usuelle, étant entendu que le matériau de l'enveloppe du plénum présente un niveau d'étanchéité à l'air, qui est adapté. Le diffuseur de cette unité terminale est, avantageusement de manière réversible, assemblé fixement au plénum souple, en recouvrant une ouverture d'un corps principal de l'enveloppe du plénum, tandis qu'une autre ouverture de ce corps principal débouche dans un manchon de l'enveloppe, qui s'étend depuis le corps principal à l'extérieur du volume interne précité et qui est raccordable à la gaine de ventilation de manière facile et fiable, comme détaillé par la suite. L'enveloppe du plénum rend ce dernier particulièrement aisé à poser en hauteur, de par la souplesse intrinsèque et la légèreté de cette enveloppe, notamment comparativement à un caisson métallique tel qu'évoqué plus haut. De même, de par sa souplesse, l'enveloppe du plénum atténue les bruits provenant de la gaine de ventilation, notamment comparativement à un caisson métallique tel qu'évoqué plus haut. Avant de mettre en service l'unité terminale de traitement d'air conforme à l'invention, l'enveloppe du plénum est stockable et transportable en configuration contractée, ce qui est particulièrement pratique et économique. Comme détaillé par la suite, le matériau souple et déformable constituant l'enveloppe du plénum est avantageusement réalisé, en partie ou en totalité, en un matériau textile et/ou en un matériau autre qu'un matériau textile. Dans tous les cas, ce matériau souple et déformable est avantageusement prévu avec des fonctionnalités d'usage additionnelles, en étant par exemple prévu lavable et/ou ininflammable et/ou purifiant pour l'air, en étant notamment antibactérien, antifongique, virucide et/ou dépolluant. Par ailleurs, l'unité terminale de traitement d'air conforme à l'invention est avantageusement utilisable aussi bien pour souffler de l'air à l'intérieur d'un bâtiment, moyennant la mise en surpression de l'intérieur de l'enveloppe de son plénum qui tend ainsi à être maintenu en configuration déployée de par sa surpression interne, que pour assurer la reprise d'air depuis l'intérieur d'un bâtiment, moyennant la mise en dépression de l'intérieur de l'enveloppe de son plénum et le recours à des moyens ad hoc pour maintenir en forme l'enveloppe en configuration déployée, de tels moyens étant détaillés par la suite. Plus généralement, le plénum souple de l'unité terminale de traitement d'air conforme à l'invention présente avantageusement les mêmes intérêts qu'un caisson métallique tel qu'évoqué plus haut, sans en souffrir des inconvénients liés à sa rigidité et son poids.One of the ideas underlying the invention is to seek to combine a rigid diffuser, well appreciated for its aeraulic and aesthetic qualities, with a cleverly flexible plenum. Thus, the invention provides that an envelope of the plenum, which defines the internal volume of the plenum in which the air circulates and is distributed between the diffuser and a ventilation duct, is made of a material, which is flexible compared to the material rigid in which an air diffusion plate belonging to the diffuser is produced, and which is deformable by hand to allow the envelope to be passed reversibly between respectively deployed and contracted configurations. The air diffusion plate facilitates the integration of the terminal unit into a false ceiling when the terminal unit. When the terminal air treatment unit according to the invention is in service, the envelope is in deployed configuration and internally ensures a usual air distribution, it being understood that the material of the plenum envelope has a level airtightness, which is suitable. The diffuser of this terminal unit is, advantageously in a reversible manner, fixedly assembled to the flexible plenum, by covering an opening of a main body of the envelope of the plenum, while another opening of this main body opens into a sleeve of the envelope, which extends from the main body outside the aforementioned internal volume and which can be connected to the ventilation duct in an easy and reliable manner, as detailed below. The envelope of the plenum makes it particularly easy to install at height, due to the intrinsic flexibility and lightness of this envelope, particularly compared to a metal box as mentioned above. Likewise, due to its flexibility, the plenum envelope attenuates noise coming from the ventilation duct, particularly compared to a metal box as mentioned above. Before putting the terminal air treatment unit according to the invention into service, the plenum envelope can be stored and transported in a contracted configuration, which is particularly practical and economical. As detailed below, the flexible and deformable material constituting the envelope of the plenum is advantageously made, partly or entirely, of a textile material and/or of a material other than a textile material. In all cases, this flexible and deformable material is advantageously provided with additional functionalities, for example being washable and/or non-flammable and/or air purifying, in particular being antibacterial, antifungal, virucidal and/ or depollutant. Furthermore, the terminal air treatment unit according to the invention can advantageously be used both to blow air inside a building, by increasing the pressure inside the envelope. of its plenum which thus tends to be maintained in deployed configuration by its internal overpressure, only to ensure the return of air from the interior of a building, by means of the depression of the interior of the envelope of its plenum and the use of ad hoc means to maintain the shape of the envelope in the deployed configuration, such means being detailed subsequently. More generally, the flexible plenum of the terminal air treatment unit according to the invention advantageously has the same advantages as a metal box as mentioned above, without suffering from the disadvantages linked to its rigidity and its weight. .

Suivant des caractéristiques additionnelles avantageuses de l'unité terminale de traitement d'air conforme à l'invention, prises isolément ou selon toutes les combinaisons techniquement possibles :

  • Le premier matériau comprend ou est constitué d'une matière métallique et/ou d'une matière plastique.
  • Le second matériau comprend ou est constitué d'un matériau textile.
  • Le second matériau comprend ou est constitué d'un matériau autre qu'un matériau textile.
  • Le second matériau est lavable, et/ou ininflammable, et/ou un matériau purificateur d'air, notamment antibactérien, antifongique, virucide et/ou dépolluant.
  • L'enveloppe résulte de l'assemblage de plusieurs pièces ayant des structures respectives qui sont différentes ou identiques entre elles.
  • Les moyens d'assemblage assemblent l'un à l'autre le diffuseur et le plénum de manière réversible.
  • Les moyens d'assemblage comportent :
    • un ou plusieurs éléments, qui sont portés par le diffuseur et qui sont agencés sur une portion périphérique de la face intérieure de la plaque, à l'intérieur de laquelle sont situés les passages de déflexion d'air, et
    • un ou plusieurs seconds éléments, qui sont portés par le plénum, qui sont agencés sur un bord de la première ouverture et qui coopèrent avec le ou les premiers éléments de manière à assembler fixement l'un à l'autre le diffuseur et le plénum.
  • Les premier et second élément sont des bandes texturées respectivement en crochets et en boucles, qui forment un système de fixation auto-agrippante.
  • La seconde extrémité du manchon est pourvue d'un collier de fixation élastique, qui est adapté pour, par déformation élastique, être rapporté autour et enserrer la gaine de ventilation.
  • Le plénum comporte une manchette de filtration d'air, qui est agencée à l'intérieur du volume de répartition d'air et qui est fixée, notamment de manière amovible, au corps principal en s'étendant en longueur dans le prolongement longitudinal du manchon entre deux extrémités longitudinales opposées de la manchette, à savoir une première extrémité, qui est ajustée à la seconde ouverture, et une seconde extrémité, qui est fermée.
  • L'unité terminale comporte :
    • des premiers moyens d'accrochage, qui sont adaptés pour suspendre le diffuseur à un plafond et qui comprennent des premiers éléments d'attache, portés par la plaque, et des premières suspentes, reliant les premiers éléments d'attache au plafond, et/ou
    • des seconds moyens d'accrochage, qui sont adaptés pour suspendre le plénum à un plafond et qui comprennent des seconds éléments d'attache, portés par l'enveloppe, et des secondes suspentes, reliant les seconds éléments d'attache au plafond.
  • L'unité terminale comporte des moyens de maintien qui sont adaptés pour :
    • maintenir en forme l'enveloppe en configuration déployée, y compris lors d'une mise en dépression du volume de répartition d'air, et
    • être neutralisés pour passer l'enveloppe de la configuration déployée à la configuration contractée.
  • Les moyens de maintien comprennent les seconds moyens d'accrochage.
  • Les moyens de maintien comprennent une armature flexible qui est rapportée à l'enveloppe de manière amovible.
  • Le corps principal présente une forme globalement parallélépipédique ou une forme de pyramide tronquée
According to additional advantageous characteristics of the terminal air treatment unit conforming to the invention, taken individually or in all technically possible combinations:
  • The first material comprises or is made of a metallic material and/or a plastic material.
  • The second material comprises or is made of a textile material.
  • The second material comprises or is made of a material other than a textile material.
  • The second material is washable, and/or non-flammable, and/or an air purifying material, in particular antibacterial, antifungal, virucidal and/or depolluting.
  • The envelope results from the assembly of several parts having respective structures which are different or identical to each other.
  • The assembly means assemble the diffuser and the plenum to each other in a reversible manner.
  • The assembly means include:
    • one or more elements, which are carried by the diffuser and which are arranged on a peripheral portion of the interior face of the plate, inside which the air deflection passages are located, and
    • one or more second elements, which are carried by the plenum, which are arranged on one edge of the first opening and which cooperate with the first element(s) so as to fixedly assemble the diffuser and the plenum to each other.
  • The first and second elements are textured hook and loop strips respectively, which form a hook-and-loop fastening system.
  • The second end of the sleeve is provided with an elastic fixing collar, which is adapted to, by elastic deformation, be brought around and grip the ventilation duct.
  • The plenum comprises an air filtration sleeve, which is arranged inside the air distribution volume and which is fixed, in particular in a removable manner, to the main body by extending in length in the longitudinal extension of the sleeve between two opposite longitudinal ends of the cuff, namely a first end, which is fitted to the second opening, and a second end, which is closed.
  • The terminal unit includes:
    • first attachment means, which are adapted to suspend the diffuser from a ceiling and which comprise first attachment elements, carried by the plate, and first hangers, connecting the first attachment elements to the ceiling, and/or
    • second attachment means, which are adapted to suspend the plenum from a ceiling and which comprise second attachment elements, carried by the envelope, and second hangers, connecting the second attachment elements to the ceiling.
  • The terminal unit includes holding means which are suitable for:
    • maintain the shape of the envelope in the deployed configuration, including when the air distribution volume is depressurized, and
    • be neutralized to pass the envelope from the deployed configuration to the contracted configuration.
  • The holding means comprise the second hooking means.
  • The holding means comprise a flexible frame which is attached to the envelope in a removable manner.
  • The main body has a generally parallelepiped shape or a truncated pyramid shape.

L'invention sera mieux comprise à la lecture de la description qui va suivre, donnée uniquement à titre d'exemple et faite en se référant aux dessins sur lesquels :

  • [Fig. 1] la figure 1 est une vue schématique en perspective d'une unité terminale de traitement d'air conforme à l'invention, en service dans un bâtiment ;
  • [Fig. 2] la figure 2 est également une vue schématique en perspective de l'unité terminale de la figure 1, montrée seule, l'angle d'observation de la figure 2 étant différent de celui de la figure 1 ;
  • [Fig. 3] la figure 3 est une coupe schématique dans le plan III de la figure 2 ; et
  • [Fig. 4] la figure 4 est une vue similaire à la figure 2, illustrant l'unité terminale dans une configuration différente de celle illustrée aux figures 1 à 3.
The invention will be better understood on reading the description which follows, given solely by way of example and made with reference to the drawings in which:
  • [ Fig. 1 ] there figure 1 is a schematic perspective view of a terminal air treatment unit according to the invention, in service in a building;
  • [ Fig. 2 ] there figure 2 is also a schematic perspective view of the terminal unit of the figure 1 , shown alone, the angle of observation of the figure 2 being different from that of the figure 1 ;
  • [ Fig. 3 ] there Figure 3 is a schematic section in plane III of the figure 2 ; And
  • [ Fig. 4 ] there Figure 4 is a view similar to the figure 2 , illustrating the terminal unit in a configuration different from that illustrated in figures 1 to 3 .

Sur les figures 1 à 4 est représentée une unité terminale de traitement d'air 1 pour un bâtiment 2. Cette unité terminale 1 permet de traiter, en particulier de renouveler, l'air du bâtiment 2 et appartient à cet effet à un réseau de ventilation, qui amène ou extrait de l'air vis-à-vis de l'intérieur du bâtiment 2 et dont les échanges d'air avec l'intérieur d'une pièce 3 du bâtiment 2 sont opérés au niveau de l'unité terminale 1, disposée dans cette pièce 3, typiquement au plafond 4 de cette dernière. La nature du bâtiment 2 n'est pas limitative, ce bâtiment pouvant être aussi bien une habitation qu'un bâtiment tertiaire, c'est-à-dire un bâtiment qui reçoit du public et/ou qui est le lieu d'activités tertiaires.On the figures 1 to 4 is shown a terminal air treatment unit 1 for a building 2. This terminal unit 1 makes it possible to treat, in particular to renew, the air of the building 2 and for this purpose belongs to a ventilation network, which brings or extracts air with respect to the interior of the building 2 and whose air exchanges with the interior of a room 3 of the building 2 are carried out at the level of the terminal unit 1, arranged in this room 3, typically on ceiling 4 of the latter. The nature of building 2 is not restrictive, this building can be both a dwelling and a tertiary building, that is to say a building which receives the public and/or which is the place of tertiary activities.

Comme bien visible sur les figures 1 à 4, l'unité terminale 1 comporte deux composants principaux que sont un diffuseur 10 et un plénum 20. Comme expliqué en détail par la suite, le diffuseur 10 est rigide comparativement au plénum 20, ce dernier pouvant ainsi être qualifié de souple comparativement au diffuseur 10. A l'état assemblé de l'unité terminale 1, le diffuseur 10 et le plénum 20 sont assemblés fixement l'un à l'autre par des moyens d'assemblage 30, plus spécifiquement visibles sur la figure 3. Ces moyens d'assemblage 30, qui seront détaillés par la suite, sont avantageusement réversibles dans le sens où ils permettent de détacher et rattacher à volonté le diffuseur 10 et le plénum 20.As clearly visible on the figures 1 to 4 , the terminal unit 1 comprises two main components which are a diffuser 10 and a plenum 20. As explained in detail subsequently, the diffuser 10 is rigid compared to the plenum 20, the latter can thus be described as flexible compared to the diffuser 10. In the assembled state of the terminal unit 1, the diffuser 10 and the plenum 20 are fixedly assembled l 'to each other by assembly means 30, more specifically visible on the Figure 3 . These assembly means 30, which will be detailed later, are advantageously reversible in the sense that they allow the diffuser 10 and the plenum 20 to be detached and reattached at will.

Comme bien visible sur les figures 1 et 3, le diffuseur 10 comporte une plaque 11 que l'on peut qualifier de rigide dans le sens où le matériau constituant la plaque 11 est rigide, en figeant la forme géométrique de la plaque 11, sans possibilité d'altérer cette forme autrement qu'en endommageant la plaque 11. Préférentiellement, le matériau constituant la plaque 11 comprend ou consiste en une matière métallique, telle que de l'acier ou de l'aluminium, et/ou une matière plastique, telle que du PVC rigide.As clearly visible on the figures 1 And 3 , the diffuser 10 comprises a plate 11 which can be described as rigid in the sense that the material constituting the plate 11 is rigid, freezing the geometric shape of the plate 11, without the possibility of altering this shape other than by damaging the plate 11. Preferably, the material constituting the plate 11 comprises or consists of a metallic material, such as steel or aluminum, and/or a plastic material, such as rigid PVC.

Sur chacun des deux côtés principaux de la plaque 11, celle-ci présente une face plane 12, respectivement 13. Ces deux faces planes 12 et 13 sont ainsi opposées l'une à l'autre suivant la direction d'épaisseur de la plaque 11, en correspondant respectivement à une face intérieure 12, qui est tournée vers le plénum 20, et une face extérieure 13.On each of the two main sides of the plate 11, it has a flat face 12, respectively 13. These two flat faces 12 and 13 are thus opposed to each other in the direction of thickness of the plate 11 , corresponding respectively to an interior face 12, which faces the plenum 20, and an exterior face 13.

Egalement comme bien visible sur les figures 1 et 3, la plaque 11 est ajourée par des passages traversants 14 qui relient l'une à l'autre les faces intérieure 12 et extérieure 13. Ces passages traversants 14 permettent à l'air de passer au travers de la plaque 11, en étant défléchis afin de mieux répartir l'air ainsi diffusé. En pratique, lorsque l'unité terminale 1 est utilisée pour amener de l'air à l'intérieur de la pièce 3 du bâtiment 2, l'air traverse la plaque 11 depuis la face intérieure 12 jusqu'à la face extérieure 13 via les passages traversants 14 qui défléchissent les écoulements d'air y circulant de manière à répartir l'admission d'air correspondante dans sensiblement toute la pièce 3 ; lorsque l'unité terminale 1 est utilisée pour extraire de l'air depuis la pièce 3, l'air traverse la plaque 11 depuis la face extérieure 13 jusqu'à la face intérieure 12 via les passages traversants 14 qui défléchissent les écoulements d'air y circulant de manière à répartir la reprise d'air correspondante depuis sensiblement toute la pièce 3.Also clearly visible on the figures 1 And 3 , the plate 11 is perforated by through passages 14 which connect the interior 12 and exterior 13 faces to each other. These through passages 14 allow the air to pass through the plate 11, being deflected so as to to better distribute the air thus diffused. In practice, when the terminal unit 1 is used to bring air inside the room 3 of the building 2, the air passes through the plate 11 from the interior face 12 to the exterior face 13 via the through passages 14 which deflect the air flows circulating there so as to distribute the corresponding air intake throughout substantially the entire room 3; when the terminal unit 1 is used to extract air from the room 3, the air passes through the plate 11 from the outer face 13 to the inner face 12 via the through passages 14 which deflect the air flows circulating there so as to distribute the corresponding air intake from substantially the entire room 3.

Comme bien visible sur les figures 1 à 4, le plénum 20 comporte une enveloppe 21 définissant un volume interne V21. Le volume interne V21 permet à l'air y circulant de se répartir à l'intérieur de l'enveloppe 21.As clearly visible on the figures 1 to 4 , the plenum 20 includes an envelope 21 defining an internal volume V21. The internal volume V21 allows the air circulating there to be distributed inside the envelope 21.

L'enveloppe 21 est constituée d'un matériau qui est plus souple que le matériau constituant la plaque 11. Ce matériau de l'enveloppe 21 est flexible, en étant déformable à la main de manière à pouvoir passer l'enveloppe 21 entre une configuration déployée, illustrée sur les figures 1 à 3, et une configuration contractée, illustrée sur la figure 4. Le volume interne V21 est plus grand lorsque l'enveloppe 21 est en configuration déployée que lorsque l'enveloppe 21 est en configuration contractée. Quel que soit le matériau constituant l'enveloppe 21, cette dernière inclut un corps principal 22 délimitant le volume interne V21, ainsi qu'un manchon 23 qui s'étend en longueur depuis le corps principal 22 à l'extérieur du volume interne V21, et ce entre deux extrémités 23A et 23B du manchon 23, opposées l'une à l'autre suivant la direction longitudinale de ce manchon.The envelope 21 is made of a material which is more flexible than the material constituting the plate 11. This material of the envelope 21 is flexible, being deformable by hand so as to be able to pass the envelope 21 between a configuration deployed, illustrated on the figures 1 to 3 , and a contracted configuration, illustrated in the figure 4 . The internal volume V21 is larger when the envelope 21 is in deployed configuration only when the envelope 21 is in contracted configuration. Whatever the material constituting the envelope 21, the latter includes a main body 22 delimiting the internal volume V21, as well as a sleeve 23 which extends in length from the main body 22 outside the internal volume V21, and this between two ends 23A and 23B of the sleeve 23, opposite each other in the longitudinal direction of this sleeve.

En pratique, de multiples formes de réalisation sont envisageables pour le matériau constituant l'enveloppe 21, étant remarqué que, eu égard au fait que l'enveloppe 21 assure, par son volume interne V21, la fonction technique de répartition d'air, on comprend que ce matériau est au moins partiellement étanche à l'air, notamment dans le sens où sa perméabilité à l'air est inférieure à 14 ℓ/(s.m2).In practice, multiple embodiments are possible for the material constituting the envelope 21, it being noted that, having regard to the fact that the envelope 21 ensures, through its internal volume V21, the technical function of air distribution, we understands that this material is at least partially airtight, particularly in the sense that its air permeability is less than 14 ℓ/(sm 2 ).

Selon une première possibilité, le matériau constituant l'enveloppe 21 comprend ou consiste en un ou plusieurs matériaux textiles, un matériau textile étant un matériau issu du filage puis du tissage et/ou du calandrage de fibres, enduites ou non. Des exemples de matériaux textiles sont le nylon, le coton, le polyester, les fibres de verre, etc.According to a first possibility, the material constituting the envelope 21 comprises or consists of one or more textile materials, a textile material being a material resulting from spinning then weaving and/or calendering fibers, coated or not. Examples of textile materials are nylon, cotton, polyester, fiberglass, etc.

Selon une deuxième possibilité, le matériau constituant l'enveloppe 21 comprend ou consiste en un ou plusieurs matériaux autres qu'un matériau textile, c'est-à-dire un ou plusieurs matériaux non issus du tissage et/ou du calandrage de fibres. Des exemples de matériaux autres qu'un matériau textile sont un film de PVC, un film en polyéthylène, le linoleum, le vinyle, le caoutchouc, la résine, etc.According to a second possibility, the material constituting the envelope 21 comprises or consists of one or more materials other than a textile material, that is to say one or more materials not resulting from weaving and/or calendering of fibers. Examples of materials other than textile material are PVC film, polyethylene film, linoleum, vinyl, rubber, resin, etc.

Il est bien entendu envisageable que le matériau constituant l'enveloppe 21 soit un matériau composite ou complexe, c'est-à-dire un matériau constitué d'un assemblage de plusieurs composants, ayant le cas échéant des natures respectives différentes, ces composants formant respectivement des couches, qui sont superposées les unes aux autres, et/ou formant respectivement des pièces, éventuellement préformées, d'une même couche, qui sont assemblées les unes aux autres en créant un patchwork. En d'autres termes, l'enveloppe 21 peut résulter de l'assemblage de plusieurs pièces de structures différentes ou identiques. Lorsqu'un tel matériau composite associe un premier composant, constitué de textile, et un ou plusieurs autres composants, constitués chacun de textile ou d'un matériau autre que du textile, l'assemblage du premier et des autres composants est avantageusement réalisé par couture ; à titre d'exemple, dans la forme de réalisation illustrée aux figures, l'enveloppe 21 est ainsi formé de six pièces cousues bord à bord, à savoir quatre pièces périphériques et une pièce de fond sommital, qui forment conjointement le corps principal 22, et une pièce formant le manchon 23. Lorsqu'un tel matériau composite associe un premier composant, constitué d'un matériau autre que du textile, et un ou plusieurs autres composants, constitués chacun d'un matériau autre que du textile, l'assemblage du premier et des autres composants est avantageusement réalisé autrement que par couture, notamment par agrafage, thermosoudage, etc. Suivant une forme de réalisation avantageuse mais non limitative, le matériau constituant l'enveloppe 21 comporte deux couches textiles, le cas échéant individuellement identiques, qui sont superposées, et une couche thermiquement isolante, qui est intercalée entre les deux couches textiles et qui est constituée d'une matière autre qu'un matériau textile, telle que de la laine de roche ou de la ouate, les deux couches textiles étant avantageusement cousues ensemble comme indiqué schématiquement en pointillés sur les figures 2 et 4.It is of course possible that the material constituting the envelope 21 is a composite or complex material, that is to say a material consisting of an assembly of several components, having where appropriate different respective natures, these components forming respectively layers, which are superimposed on each other, and/or respectively forming pieces, possibly preformed, of the same layer, which are assembled together to create a patchwork. In other words, the envelope 21 can result from the assembly of several parts of different or identical structures. When such a composite material combines a first component, made of textile, and one or more other components, each made of textile or a material other than textile, the assembly of the first and the other components is advantageously carried out by sewing ; for example, in the embodiment illustrated in the figures, the envelope 21 is thus formed of six pieces sewn edge to edge, namely four peripheral pieces and a top bottom piece, which jointly form the main body 22, and a part forming the sleeve 23. When such a composite material combines a first component, made of a material other than textile, and one or more other components, each made of a material other than textile, the assembly of the first and other components is advantageously produced other than by sewing, in particular by stapling, heat sealing, etc. According to an advantageous but non-limiting embodiment, the material constituting the envelope 21 comprises two textile layers, where appropriate individually identical, which are superimposed, and a thermally insulating layer, which is interposed between the two textile layers and which is constituted of a material other than a textile material, such as rock wool or wadding, the two textile layers being advantageously sewn together as indicated schematically in dotted lines on the figure 2 And 4 .

Dans tous les cas, le matériau constituant l'enveloppe 21 est avantageusement conçu, notamment de par sa formulation et/ou sa structure, pour conférer à l'enveloppe 21 des fonctions additionnelles intéressantes dans le domaine des équipements de traitement d'air. Le matériau constituant l'enveloppe 21 est ainsi avantageusement :

  • lavable, et/ou
  • ininflammable, et/ou
  • un matériau purificateur d'air, notamment antibactérien, antifongique, virucide et/ou dépolluant.
In all cases, the material constituting the envelope 21 is advantageously designed, in particular by its formulation and/or its structure, to give the envelope 21 additional functions of interest in the field of air treatment equipment. The material constituting the envelope 21 is thus advantageously:
  • washable, and/or
  • non-flammable, and/or
  • an air purifying material, in particular antibacterial, antifungal, virucidal and/or depolluting.

Par ailleurs, le matériau constituant l'enveloppe 21 est avantageusement issu au moins en partie de matières recyclées.Furthermore, the material constituting the envelope 21 advantageously comes at least in part from recycled materials.

Dans tous les cas, comme bien visible sur la figure 3, le corps principal 22 délimite le volume interne V21 en fermant ce dernier sur toute sa surface périmétrique, hormis au niveau de deux ouvertures traversantes 22A et 22B du corps principal 22, qui sont distinctes l'une de l'autre et qui sont avantageusement situées sur des côtés respectifs différents du corps principal 22. La forme géométrique du corps principal 22 n'est pas limitative, en étant par exemple globalement parallélépipédique ou en forme de pyramide tronquée.In any case, as clearly visible on the Figure 3 , the main body 22 delimits the internal volume V21 by closing the latter over its entire perimeter surface, except at the level of two through openings 22A and 22B of the main body 22, which are distinct from each other and which are advantageously located on different respective sides of the main body 22. The geometric shape of the main body 22 is not limiting, being for example generally parallelepiped or in the shape of a truncated pyramid.

A l'état assemblé de l'unité terminale 1, l'ouverture 22A du corps principal 22 est recouverte par la face intérieure 12 de la plaque 11. Ainsi, la plaque 11 obture, en quelque sorte, l'ouverture 22A sur toute l'étendue de cette dernière, étant toutefois rappelé que la plaque 11 est ajourée par les passages traversants 14. Cet agencement de la plaque 11 vis-à-vis du corps principal 22 est avantageusement mis à profit aux fins de l'assemblage du diffuseur 10 et du plénum 20 l'un à l'autre. A cet effet, comme envisagé dans la forme de réalisation considérée sur les figures et comme bien visible sur la figure 3, les moyens d'assemblage 30 comportent deux éléments 31 et 32 conçus pour coopérer, notamment de manière mécanique, l'un avec l'autre de manière à assembler fixement le diffuseur 10 et le plénum 20 l'un à l'autre, le cas échéant de manière réversible : l'élément 31 est porté par le diffuseur 10 et est agencé sur une portion périphérique de la face intérieure 12 de la plaque 11, à l'intérieur de laquelle sont situés les passages traversants 14, tandis que l'élément 32 est porté par le plénum 20 et est agencé sur un bord de l'ouverture 22A. A titre d'exemple préférentiel, les éléments 31 et 32 correspondent à, respectivement, une bande texturée en crochets et une bande texturée en boucles, qui appartiennent à un système de fixation auto-agrippante, couramment appelé système « velcro » (marque déposée). Ceci étant, d'autres formes de réalisation sont bien entendu envisageables pour les éléments 31 et 32 : par exemple, l'élément 31 est constitué d'un groupe d'éléments mâles, répartis sur la face intérieure 12 de la plaque 11, et l'élément 32 est constitué d'un groupe d'éléments femelles, répartis sur le bord de l'ouverture 22A et à même de recevoir et d'être mis en prise par les éléments mâles précités.In the assembled state of the terminal unit 1, the opening 22A of the main body 22 is covered by the interior face 12 of the plate 11. Thus, the plate 11 closes, as it were, the opening 22A over the entire length. the extent of the latter, however remembering that the plate 11 is perforated by the through passages 14. This arrangement of the plate 11 with respect to the main body 22 is advantageously used for the purposes of assembling the diffuser 10 and from the plenum 20 to each other. For this purpose, as envisaged in the embodiment considered in the figures and as clearly visible on the Figure 3 , the assembly means 30 comprise two elements 31 and 32 designed to cooperate, in particular mechanically, with one another so as to fixedly assemble the diffuser 10 and the plenum 20 to one another, the where appropriate in a reversible manner: the element 31 is carried by the diffuser 10 and is arranged on a peripheral portion of the interior face 12 of the plate 11, inside which the through passages 14 are located, while the element 32 is carried by the plenum 20 and is arranged on one edge of the opening 22A. As As a preferred example, elements 31 and 32 correspond to, respectively, a hook-textured strip and a loop-textured strip, which belong to a hook-and-loop fastening system, commonly called a "velcro" system (registered trademark). This being said, other embodiments are of course possible for elements 31 and 32: for example, element 31 is made up of a group of male elements, distributed on the interior face 12 of plate 11, and the element 32 is made up of a group of female elements, distributed on the edge of the opening 22A and able to receive and be engaged by the aforementioned male elements.

L'ouverture 22B du corps principal 22 est, quant à elle, aboutée à l'extrémité 23A du manchon 23, cette extrémité 23A étant ajustée à l'ouverture 22B, si bien que le manchon 23 débouche en totalité dans l'ouverture 22B via son extrémité 23A. L'intérieur du corps principal 22 et l'intérieur du manchon 23 sont ainsi en libre communication fluidique l'un avec l'autre.The opening 22B of the main body 22 is, for its part, abutting the end 23A of the sleeve 23, this end 23A being adjusted to the opening 22B, so that the sleeve 23 opens entirely into the opening 22B via its end 23A. The interior of the main body 22 and the interior of the sleeve 23 are thus in free fluidic communication with each other.

L'extrémité 23B du manchon 23 est, quant à elle, adaptée pour être raccordée à une gaine de ventilation 5 appartenant au réseau de ventilation mentionné plus haut. Suivant un aménagement avantageux particulièrement pratique, qui est mis en oeuvre dans la forme de réalisation considérée sur les figures, l'extrémité 23B du manchon 23 est pourvue d'un collier de fixation 24 élastique, qui est adapté pour, par déformation élastique, être rapporté autour et enserrer la gaine de ventilation 5, comme montré schématiquement sur les figures 2 et 3. Ainsi, le collier de fixation 24 présente un diamètre intérieur qui varie, moyennant la déformation élastique de ce collier de fixation 24, entre une valeur minimale, qui est atteinte lorsque le collier de fixation 24 est au repos et qui est inférieure au diamètre extérieur de la gaine de ventilation 5, et une valeur maximale, qui est atteinte lorsque le collier de fixation 24 est étiré et qui est supérieure au diamètre extérieur de la gaine de ventilation 5. Le raccordement entre le manchon 23 et la gaine de ventilation 5 est ainsi particulièrement aisé, et ce quelles que soient les spécificités de la gaine de ventilation 5.The end 23B of the sleeve 23 is, for its part, adapted to be connected to a ventilation duct 5 belonging to the ventilation network mentioned above. According to a particularly practical advantageous arrangement, which is implemented in the embodiment considered in the figures, the end 23B of the sleeve 23 is provided with an elastic fixing collar 24, which is adapted for, by elastic deformation, to be reported around and grip the ventilation duct 5, as shown schematically on the figure 2 And 3 . Thus, the fixing collar 24 has an internal diameter which varies, by means of the elastic deformation of this fixing collar 24, between a minimum value, which is reached when the fixing collar 24 is at rest and which is less than the external diameter of the ventilation duct 5, and a maximum value, which is reached when the fixing collar 24 is stretched and which is greater than the external diameter of the ventilation duct 5. The connection between the sleeve 23 and the ventilation duct 5 is thus particularly easy, whatever the specificities of the ventilation duct 5.

Suivant une disposition optionnelle avantageuse, qui est mise en oeuvre dans le mode de réalisation considéré aux figures et qui est visible uniquement à la figure 3, le plénum 20 comporte une manchette 40 permettant de filtrer l'air circulant à l'intérieur du plénum 20. La manchette 40 est agencée à l'intérieur du volume interne V21 de l'enveloppe 21 et est fixée au corps principal 22 de cette enveloppe, en s'étendant en longueur dans le prolongement longitudinal du manchon 23, et ce entre deux extrémités 40A et 40B de la manchette 40, opposées l'une à l'autre suivant la direction longitudinale de cette manchette. L'extrémité 40A de la manchette 40 est ajustée à l'ouverture 22B du corps principal 22, si bien que le manchon 23 débouche en totalité dans la manchette 40, via l'extrémité 23A du manchon 23 et l'extrémité 40A de la manchette 40. L'extrémité 40B de la manchette 40 est, quant à elle, fermée, ce qui confère à la manchette une forme globale de poche tubulaire, ouverte uniquement à son extrémité 40A, comme bien visible sur la figure 3. Afin d'opérer la filtration de l'air traversant la paroi de la manchette 40, le matériau de cette dernière est poreux, en étant adapté pour retenir des particules fines présentes dans l'air. Les spécificités du matériau constituant la manchette 40 ne sont pas limitatives dès lors qu'il présente un pouvoir de filtration de l'air, étant remarqué que ce matériau est avantageusement souple, en présentant en particulier une flexibilité similaire à celle de l'enveloppe 21.According to an advantageous optional arrangement, which is implemented in the embodiment considered in the figures and which is visible only at the Figure 3 , the plenum 20 includes a cuff 40 making it possible to filter the air circulating inside the plenum 20. The cuff 40 is arranged inside the internal volume V21 of the envelope 21 and is fixed to the main body 22 of this envelope, extending in length in the longitudinal extension of the sleeve 23, and this between two ends 40A and 40B of the cuff 40, opposite one to the other in the longitudinal direction of this cuff. The end 40A of the cuff 40 is adjusted to the opening 22B of the main body 22, so that the sleeve 23 opens entirely into the cuff 40, via the end 23A of the sleeve 23 and the end 40A of the cuff 40. The end 40B of the cuff 40 is, for its part, closed, which gives the cuff an overall shape of a tubular pocket, open only at its end 40A, as clearly visible on the Figure 3 . In order to filter the air passing through the wall of the cuff 40, the material of the latter is porous, being adapted to retain fine particles present in the air. The specificities of the material constituting the cuff 40 are not limiting as long as it has an air filtration power, it being noted that this material is advantageously flexible, in particular presenting a flexibility similar to that of the envelope 21 .

En pratique, la fixation de la manchette 40 au corps principal 22 est avantageusement amovible, permettant ainsi de détacher facilement la manchette 40 vis-à-vis du corps principal 22 et de la remplacer régulièrement. Cette fixation amovible est réalisée par tout moyen approprié, par exemple un système de fixation auto-agrippante, un système de fermeture à glissière, tel qu'une fermeture « Eclair » (marque déposée), etc.In practice, the attachment of the cuff 40 to the main body 22 is advantageously removable, thus making it possible to easily detach the cuff 40 from the main body 22 and to replace it regularly. This removable fastening is achieved by any appropriate means, for example a hook-and-loop fastening system, a zipper system, such as a “Zipper” fastener (registered trademark), etc.

Pour permettre d'installer l'unité terminale 1 au niveau du plafond 4 de la pièce 3, l'unité terminale 1 comporte avantageusement des moyens d'accrochage 50 qui permettent de suspendre au plafond 4 le diffuseur 10 et/ou le plénum 20.To enable the terminal unit 1 to be installed at the level of the ceiling 4 of the room 3, the terminal unit 1 advantageously comprises hooking means 50 which make it possible to suspend the diffuser 10 and/or the plenum 20 from the ceiling 4.

Dans le mode de réalisation considéré sur les figures, les moyens d'accrochage 50 agissent exclusivement sur le plénum 20, tandis que le diffuseur 10 est retenu en place par son assemblage fixe avec le plénum 20 : à cet effet, comme bien visible sur les figures 1 et 2, les moyens d'accrochage 50 comprennent des éléments d'attache 51, portés par l'enveloppe 21, et des suspentes 52, reliant les éléments d'attache 51 au plafond 4. Les éléments d'attache 51 correspondent, par exemple, à des coulants qui sont fixés, par couture ou collage, en saillie extérieure à l'enveloppe 21. Les suspentes 52 sont, par exemple, des filins qui, à l'installation, sont tendus entre les éléments d'attache 51 et le plafond 4.In the embodiment considered in the figures, the attachment means 50 act exclusively on the plenum 20, while the diffuser 10 is held in place by its fixed assembly with the plenum 20: for this purpose, as clearly visible on the figures 1 And 2 , the attachment means 50 comprise attachment elements 51, carried by the envelope 21, and hangers 52, connecting the attachment elements 51 to the ceiling 4. The attachment elements 51 correspond, for example, to slides which are fixed, by sewing or gluing, projecting externally to the envelope 21. The hangers 52 are, for example, ropes which, upon installation, are stretched between the attachment elements 51 and the ceiling 4 .

Selon une forme de réalisation, qui est complémentaire ou alternative à celle illustrée aux figures et qui n'est pas représentée sur les figures, les moyens d'accrochage 50 comprennent des éléments d'attache, portés par la plaque 11 du diffuseur 10, et des suspentes, reliant ces éléments d'attache au plafond 4. A titre d'exemple, les éléments d'attache portés par le diffuseur 10 sont des trous ménagés sur le bord périphérique de la plaque 11 et les suspentes sont des filins, passant par ces trous et tendus entre la plaque 11 et le plafond 4.According to one embodiment, which is complementary or alternative to that illustrated in the figures and which is not shown in the figures, the hooking means 50 comprise fastening elements, carried by the plate 11 of the diffuser 10, and hangers, connecting these attachment elements to the ceiling 4. For example, the attachment elements carried by the diffuser 10 are holes provided on the peripheral edge of the plate 11 and the hangers are ropes, passing through these holes are stretched between the plate 11 and the ceiling 4.

En tenant compte des explications données jusqu'ici, on comprend que tant que l'unité terminale 1 n'a pas à être mise en service, en particulier lorsque l'unité terminale 1 est stockée et transportée avant mise en service, sa manutention est aisée en maintenant son enveloppe 21 dans la configuration contractée, comme sur la figure 4. De plus, dès lors que les moyens d'assemblage 30 sont prévus réversibles, il est possible de transporter séparément le diffuseur 10 et le plénum 20, ce qui améliore encore la manutention de l'unité terminale 1, puis de n'assembler le diffuseur 10 et le plénum 20 que peu avant de mettre en service l'unité terminale 1, notamment sur le site de mise en service, c'est-à-dire dans le bâtiment 2 dans l'exemple considéré ici, cet assemblage étant rapide et aisé. Lors de l'installation de l'unité terminale 1 dans la pièce 3, le diffuseur 10 et/ou le plénum 20 sont suspendus au plafond 4 par les moyens d'accrochage 50 : les opérations d'installation correspondantes sont facilitées grâce, entre autres, au faible poids de l'unité terminale 1 et à la facilité de raccordement entre le manchon 23 et la gaine de ventilation 5. Le cas échéant, l'unité terminale 1 est ainsi installée dans un volume libre séparant le plafond 4 et un faux-plafond de la pièce 3, de sorte que, à l'issue de l'installation, la plaque 11 du diffuseur 10 s'étend de manière continue dans le plan que forme ce faux-plafond. De par sa structure souple, l'enveloppe 21 s'adapte facilement au volume libre entre le plafond 4 et le faux-plafond précité, y compris lorsque ce volume libre est réduit et/ou encombré. Une fois que l'unité terminale 1 est en service, elle est esthétique, dans le sens où la face extérieure 13 de la plaque 11 de son diffuseur 10 répond aux standards visuels du marché, en particulier en présence d'un faux-plafond, et elle est performante en termes aéraulique, dans le sens où l'enveloppe 21 de son plénum 20 assure une bonne répartition de l'air vis-à-vis de son diffuseur 10 qui, pour sa part, assure une bonne diffusion de l'air au travers de sa plaque 11. L'unité terminale 1 est également performante en termes d'acoustique, dans le sens où, grâce à sa structure souple, l'enveloppe 21 atténue les bruits provenant de la gaine de ventilation 5.Taking into account the explanations given so far, we understand that as long as the terminal unit 1 does not have to be put into service, in particular when the terminal unit 1 is stored and transported before putting into service, its handling is easy by maintaining its envelope 21 in the contracted configuration, as on the Figure 4 . Furthermore, therefore that the assembly means 30 are designed to be reversible, it is possible to transport the diffuser 10 and the plenum 20 separately, which further improves the handling of the terminal unit 1, then to assemble the diffuser 10 and the plenum 20 only shortly before putting the terminal unit 1 into service, in particular on the commissioning site, that is to say in building 2 in the example considered here, this assembly being quick and easy. When installing the terminal unit 1 in room 3, the diffuser 10 and/or the plenum 20 are suspended from the ceiling 4 by the hanging means 50: the corresponding installation operations are facilitated thanks, among other things, to , the low weight of the terminal unit 1 and the ease of connection between the sleeve 23 and the ventilation duct 5. If necessary, the terminal unit 1 is thus installed in a free volume separating the ceiling 4 and a false -ceiling of room 3, so that, at the end of installation, the plate 11 of the diffuser 10 extends continuously in the plane formed by this false ceiling. Due to its flexible structure, the envelope 21 easily adapts to the free volume between the ceiling 4 and the aforementioned false ceiling, including when this free volume is reduced and/or cluttered. Once the terminal unit 1 is in service, it is aesthetic, in the sense that the exterior face 13 of the plate 11 of its diffuser 10 meets the visual standards of the market, in particular in the presence of a false ceiling, and it is efficient in aeraulic terms, in the sense that the envelope 21 of its plenum 20 ensures good distribution of air with respect to its diffuser 10 which, for its part, ensures good diffusion of the air through its plate 11. The terminal unit 1 is also efficient in terms of acoustics, in the sense that, thanks to its flexible structure, the envelope 21 attenuates the noise coming from the ventilation duct 5.

On notera que, en service, l'unité terminale 1 est utilisable avec, indifféremment, un réseau de ventilation en surpression et un réseau de ventilation en dépression. Lorsque le réseau de ventilation est en surpression, la gaine de ventilation 5 alimente l'unité terminale 1 avec de l'air sous pression qui remplit le volume interne V21 avant d'être évacué dans la pièce 3 du bâtiment 2 au travers de la plaque 11, ce qui tend, par effet de gonflage, à passer et maintenir l'enveloppe 21 en configuration déployée. Lorsque le réseau de ventilation est en dépression, la gaine de ventilation 5 aspire l'air de la pièce 3 au travers de l'unité terminale 1, moyennant la circulation de l'air à travers la plaque 11 puis dans le volume interne V21 : pour contrecarrer l'effet d'aspiration régnant dans le volume interne V21 et éviter que ce dernier ne tende à faire prendre à l'enveloppe 21 sa configuration contractée alors que l'unité terminale 1 est en service, l'unité terminale 1 comprend avantageusement des moyens de maintien 60 qui permettent de maintenir en forme l'enveloppe 21 en configuration déployée, y compris lors d'une mise en dépression du volume interne V21, tout en pouvant être neutralisés pour passer l'enveloppe 21 de la configuration déployée à la configuration contractée.It will be noted that, in service, the terminal unit 1 can be used with, indifferently, an overpressure ventilation network and a depression ventilation network. When the ventilation network is under overpressure, the ventilation duct 5 supplies the terminal unit 1 with pressurized air which fills the internal volume V21 before being evacuated into room 3 of building 2 through the plate 11, which tends, by inflation effect, to pass and maintain the envelope 21 in deployed configuration. When the ventilation network is in depression, the ventilation duct 5 draws air from the room 3 through the terminal unit 1, by means of the circulation of the air through the plate 11 then in the internal volume V21: to counteract the suction effect prevailing in the internal volume V21 and prevent the latter from tending to cause the envelope 21 to assume its contracted configuration while the terminal unit 1 is in service, the terminal unit 1 advantageously comprises holding means 60 which make it possible to maintain the shape of the envelope 21 in the deployed configuration, including during depression of the internal volume V21, while being able to be neutralized to pass the envelope 21 from the deployed configuration to the contracted configuration.

En pratique, plusieurs formes de réalisation sont envisageables pour les moyens de maintien 60. Une possibilité consiste à ce que ces moyens de maintien 60 comprennent tout ou partie des moyens d'accrochage 50 dès lors que ces derniers agissent sur le plénum 20 : dans l'exemple considéré sur les figures, cela revient à dire que les moyens de maintien 60 comprennent les éléments d'attache 51 et les suspentes 52 dès lors que ces dernières, de par leur longueur fixe une fois qu'elles sont tendues entre le plafond 4 et les éléments d'attache 51, tendent à contrer la contraction de l'enveloppe 21 en configuration déployée, tandis que, une fois que les suspentes 52 sont libérées, ni les suspentes 52, ni les éléments d'attache 51 n'empêchent de passer l'enveloppe 51 dans la configuration contractée. Une autre possibilité, qui est potentiellement cumulable avec la précédente mais qui n'est pas représentée en détail sur les figures, consiste à ce que les moyens de maintien 60 comprennent une armature flexible qui est rapportée à l'enveloppe 21 de manière amovible : cette armature flexible, incluant par exemple un ou plusieurs arceaux élastiques qui sont rapportés dans des fourreaux dédiés de l'enveloppe 21, agit mécaniquement sur l'enveloppe 21 pour contrer la contraction de cette enveloppe en configuration déployée, cette armature étant ensuite neutralisable par dégagement pour permettre de repasser l'enveloppe 21 en configuration contractée.In practice, several embodiments are possible for the holding means 60. One possibility consists of these holding means 60 comprising all or part of the hooking means 50 since the latter act on the plenum 20: in the example considered in the figures, this amounts to saying that the holding means 60 comprise the attachment elements 51 and the hangers 52 since the latter, by their fixed length once they are stretched between the ceiling 4 and the attachment elements 51 tend to counter the contraction of the envelope 21 in the deployed configuration, while, once the lines 52 are released, neither the lines 52 nor the attachment elements 51 prevent pass the envelope 51 in the contracted configuration. Another possibility, which can potentially be combined with the previous one but which is not shown in detail in the figures, consists of the holding means 60 comprising a flexible frame which is attached to the envelope 21 in a removable manner: this flexible armature, including for example one or more elastic hoops which are attached to dedicated sheaths of the envelope 21, acts mechanically on the envelope 21 to counter the contraction of this envelope in the deployed configuration, this armature then being neutralizable by release for allow the envelope 21 to be returned to the contracted configuration.

Enfin, divers aménagements et variantes à l'unité terminale 1 décrits jusqu'ici sont par ailleurs envisageables. A titre d'exemple, plutôt que d'être raccordée à une seule gaine de ventilation, comme à la gaine de ventilation 5 sur les figures 1 à 3, l'unité terminale 1 est raccordable à plusieurs gaines de ventilation, en prévoyant que son plénum 20 inclut plusieurs manchons, individuellement similaires au manchon 23 mais débouchant dans le volume interne V21 de son enveloppe 21 par autant d'ouvertures respectives, individuellement similaires à l'ouverture 22B.Finally, various arrangements and variants of the terminal unit 1 described so far are also possible. For example, rather than being connected to a single ventilation duct, such as ventilation duct 5 on the figures 1 to 3 , the terminal unit 1 can be connected to several ventilation ducts, by providing that its plenum 20 includes several sleeves, individually similar to the sleeve 23 but opening into the internal volume V21 of its envelope 21 through as many respective openings, individually similar to opening 22B.

Claims (15)

Unité terminale de traitement d'air (1) pour un bâtiment (2),
laquelle unité terminale comporte un diffuseur (10) rigide et un plénum (20) souple, ainsi que des moyens d'assemblage (30) qui assemblent fixement le diffuseur et le plénum l'un à l'autre,
lequel diffuseur (10) comporte une plaque (11) qui : - est constituée d'un premier matériau, - présente deux faces planes, opposées l'une à l'autre, à savoir une face intérieure (12), qui est tournée vers le plénum (20), et une face extérieure (13), - est adaptée pour s'étendre de manière continue dans un plan que forme un faux-plafond lorsque l'unité terminale (1) est installée dans un volume libre séparant un plafond (4) et ledit faux-plafond, et - est ajourée par des passages de déflexion d'air (14) qui relient l'une à l'autre les faces intérieure et extérieure, et lequel plénum (20) comporte une enveloppe (21) qui : - définit un volume de répartition d'air (V21), - est constituée d'un second matériau, qui est plus souple que le premier matériau et qui est déformable à la main de manière à pouvoir passer l'enveloppe de manière réversible entre une configuration déployée et une configuration contractée, le volume de répartition d'air (V21) étant plus grand lorsque l'enveloppe est en configuration déployée que lorsque l'enveloppe est en configuration contractée, - inclut un corps principal (22) qui ferme le volume de répartition d'air (V21) hormis au niveau d'au moins deux ouvertures traversantes du corps principal, à savoir une première ouverture (22A), qui est recouverte par la face intérieure (12) de la plaque (11), et une seconde ouverture (22B), et - inclut également un manchon (23) qui s'étend en longueur depuis le corps principal (22) à l'extérieur du volume de répartition d'air (V21) entre deux extrémités longitudinales opposées du manchon, à savoir une première extrémité (23A), qui est ajustée à la seconde ouverture (22B), et une seconde extrémité (23B), qui est adaptée pour être raccordée à une gaine de ventilation (5). Terminal air treatment unit (1) for a building (2),
which terminal unit comprises a rigid diffuser (10) and a flexible plenum (20), as well as assembly means (30) which fixedly assemble the diffuser and the plenum to one another,
which diffuser (10) comprises a plate (11) which: - is made up of a first material, - has two flat faces, opposite each other, namely an interior face (12), which faces the plenum (20), and an exterior face (13), - is adapted to extend continuously in a plane formed by a false ceiling when the terminal unit (1) is installed in a free volume separating a ceiling (4) and said false ceiling, and - is perforated by air deflection passages (14) which connect the interior and exterior faces to each other, and which plenum (20) comprises an envelope (21) which: - defines an air distribution volume (V21), - is made up of a second material, which is more flexible than the first material and which is deformable by hand so as to be able to pass the envelope reversibly between an deployed configuration and a contracted configuration, the distribution volume of air (V21) being greater when the envelope is in deployed configuration than when the envelope is in contracted configuration, - includes a main body (22) which closes the air distribution volume (V21) except at least two through openings of the main body, namely a first opening (22A), which is covered by the interior face (12) of the plate (11), and a second opening (22B), and - also includes a sleeve (23) which extends in length from the main body (22) outside the air distribution volume (V21) between two opposite longitudinal ends of the sleeve, namely a first end (23A ), which is fitted to the second opening (22B), and a second end (23B), which is adapted to be connected to a ventilation duct (5). Unité terminale suivant la revendication 1, dans laquelle le premier matériau comprend ou est constitué d'une matière métallique et/ou d'une matière plastique.A terminal unit according to claim 1, wherein the first material comprises or consists of a metallic material and/or a plastic material. Unité terminale suivant l'une des revendications 1 ou 2, dans laquelle le second matériau comprend ou est constitué d'un matériau textile.Terminal unit according to one of claims 1 or 2, wherein the second material comprises or consists of a textile material. Unité terminale suivant l'une quelconque des revendications précédentes, dans laquelle le second matériau comprend ou est constitué d'un matériau autre qu'un matériau textile.A terminal unit according to any preceding claim, wherein the second material comprises or consists of a material other than a textile material. Unité terminale suivant l'une quelconque des revendications précédentes, dans laquelle le second matériau est : - lavable, et/ou - ininflammable, et/ou - un matériau purificateur d'air, notamment antibactérien, antifongique, virucide et/ou dépolluant. Terminal unit according to any one of the preceding claims, in which the second material is: - washable, and/or - non-flammable, and/or - an air purifying material, in particular antibacterial, antifungal, virucidal and/or depolluting. Unité terminale suivant l'une quelconque des revendications précédentes, dans laquelle l'enveloppe (21) résulte de l'assemblage de plusieurs pièces ayant des structures respectives qui sont différentes ou identiques entre elles.Terminal unit according to any one of the preceding claims, in which the envelope (21) results from the assembly of several parts having respective structures which are different or identical to each other. Unité terminale suivant l'une quelconque des revendications précédentes, dans laquelle les moyens d'assemblage (30) assemblent l'un à l'autre le diffuseur (10) et le plénum (20) de manière réversible.Terminal unit according to any one of the preceding claims, in which the assembly means (30) assemble the diffuser (10) and the plenum (20) to each other in a reversible manner. Unité terminale suivant l'une quelconque des revendications précédentes, dans laquelle les moyens d'assemblage (30) comportent : - un ou plusieurs éléments (31), qui sont portés par le diffuseur (10) et qui sont agencés sur une portion périphérique de la face intérieure (12) de la plaque (11), à l'intérieur de laquelle sont situés les passages de déflexion d'air (14), et - un ou plusieurs seconds éléments (32), qui sont portés par le plénum (20), qui sont agencés sur un bord de la première ouverture (22A) et qui coopèrent avec le ou les premiers éléments (31) de manière à assembler fixement l'un à l'autre le diffuseur (10) et le plénum (20). Terminal unit according to any one of the preceding claims, in which the assembly means (30) comprise: - one or more elements (31), which are carried by the diffuser (10) and which are arranged on a peripheral portion of the interior face (12) of the plate (11), inside which the passages are located air deflection (14), and - one or more second elements (32), which are carried by the plenum (20), which are arranged on one edge of the first opening (22A) and which cooperate with the first element(s) (31) so as to securely assemble the diffuser (10) and the plenum (20) to each other. Unité terminale suivant la revendication 8, dans laquelle les premier (31) et second (32) élément sont des bandes texturées respectivement en crochets et en boucles, qui forment un système de fixation auto-agrippante.A terminal unit according to claim 8, wherein the first (31) and second (32) elements are textured hook and loop strips respectively, which form a hook and loop fastening system. Unité terminale suivant l'une quelconque des revendications précédentes, dans laquelle la seconde extrémité (23B) du manchon (23) est pourvue d'un collier de fixation (24) élastique, qui est adapté pour, par déformation élastique, être rapporté autour et enserrer la gaine de ventilation (5).Terminal unit according to any one of the preceding claims, in which the second end (23B) of the sleeve (23) is provided with an elastic fixing collar (24), which is adapted to, by elastic deformation, be attached around and tighten the ventilation duct (5). Unité terminale suivant l'une quelconque des revendications précédentes, dans laquelle le plénum (20) comporte une manchette de filtration d'air (40), qui est agencée à l'intérieur du volume de répartition d'air (V21) et qui est fixée, notamment de manière amovible, au corps principal (22) en s'étendant en longueur dans le prolongement longitudinal du manchon (23) entre deux extrémités longitudinales opposées de la manchette, à savoir une première extrémité (40A), qui est ajustée à la seconde ouverture (22B), et une seconde extrémité (40B), qui est fermée.Terminal unit according to any one of the preceding claims, in which the plenum (20) comprises an air filtration sleeve (40), which is arranged inside the air distribution volume (V21) and which is fixed, in particular in a removable manner, to the main body (22) by extending in length in the longitudinal extension of the sleeve (23) between two opposite longitudinal ends of the cuff, namely a first end (40A), which is fitted to the second opening (22B), and a second end (40B), which is closed. Unité terminale suivant l'une quelconque des revendications précédentes, dans laquelle l'unité terminale (1) comporte : - des premiers moyens d'accrochage, qui sont adaptés pour suspendre le diffuseur (10) à un plafond (4) et qui comprennent des premiers éléments d'attache, portés par la plaque (11), et des premières suspentes, reliant les premiers éléments d'attache au plafond, et/ou - des seconds moyens d'accrochage (50), qui sont adaptés pour suspendre le plénum (20) à un plafond (4) et qui comprennent des seconds éléments d'attache (51), portés par l'enveloppe (21), et des secondes suspentes (52), reliant les seconds éléments d'attache au plafond. Terminal unit according to any one of the preceding claims, in which the terminal unit (1) comprises: - first attachment means, which are adapted to suspend the diffuser (10) from a ceiling (4) and which comprise first attachment elements, carried by the plate (11), and first hangers, connecting the first ceiling attachment elements, and/or - second attachment means (50), which are adapted to suspend the plenum (20) from a ceiling (4) and which comprise second attachment elements (51), carried by the envelope (21), and second hangers (52), connecting the second attachment elements to the ceiling. Unité terminale suivant l'une quelconque des revendications précédentes, dans laquelle l'unité terminale (1) comporte des moyens de maintien (60) qui sont adaptés pour : - maintenir en forme l'enveloppe (21) en configuration déployée, y compris lors d'une mise en dépression du volume de répartition d'air (V21), et - être neutralisés pour passer l'enveloppe de la configuration déployée à la configuration contractée et dans laquelle, de préférence, les moyens de maintien (60) comprennent les seconds moyens d'accrochage (50).Terminal unit according to any one of the preceding claims, in which the terminal unit (1) comprises holding means (60) which are adapted for: - maintain the shape of the envelope (21) in the deployed configuration, including when the air distribution volume (V21) is depressurized, and - be neutralized to pass the envelope from the deployed configuration to the contracted configuration and in which, preferably, the holding means (60) comprise the second hooking means (50). Unité terminale suivant la revendication 13, dans laquelle les moyens de maintien comprennent une armature flexible qui est rapportée à l'enveloppe (21) de manière amovible.Terminal unit according to claim 13, in which the holding means comprise a flexible frame which is attached to the casing (21) in a removable manner. Unité terminale suivant l'une quelconque des revendications précédentes, dans laquelle le corps principal (22) présente une forme globalement parallélépipédique ou une forme de pyramide tronquée.A terminal unit according to any one of the preceding claims, wherein the main body (22) has a generally parallelepiped shape or a truncated pyramid shape.
EP23172821.3A 2022-05-12 2023-05-11 Air treatment terminal unit for a building Pending EP4276377A1 (en)

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FR2204530A FR3135512B1 (en) 2022-05-12 2022-05-12 Terminal air treatment unit for a building

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FR (1) FR3135512B1 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0175892A1 (en) 1984-09-10 1986-04-02 AMELIORAIR S.A. Société dite : Gas, especially air distributing duct for a room
WO2001004547A1 (en) 1999-07-13 2001-01-18 Rite-Hite Holding Corporation Frame to support a deflated fabric air duct
US20060252365A1 (en) * 2005-05-04 2006-11-09 Gebke Kevin J Pliable air duct with pressure responsive discharge outlets
WO2020096966A1 (en) 2018-11-09 2020-05-14 Rite-Hite Holding Corporation Fabric drop-down diffusers
WO2020252365A1 (en) 2019-06-14 2020-12-17 Bloodworks Systems and methods to predict increased risk for adverse cardiovascular events in human immunodeficiency virus (hiv)-infected subjects
WO2020253896A1 (en) * 2019-06-21 2020-12-24 Prihoda S.R.O. Nozzle and air conditioning duct

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0175892A1 (en) 1984-09-10 1986-04-02 AMELIORAIR S.A. Société dite : Gas, especially air distributing duct for a room
WO2001004547A1 (en) 1999-07-13 2001-01-18 Rite-Hite Holding Corporation Frame to support a deflated fabric air duct
US20060252365A1 (en) * 2005-05-04 2006-11-09 Gebke Kevin J Pliable air duct with pressure responsive discharge outlets
WO2020096966A1 (en) 2018-11-09 2020-05-14 Rite-Hite Holding Corporation Fabric drop-down diffusers
WO2020252365A1 (en) 2019-06-14 2020-12-17 Bloodworks Systems and methods to predict increased risk for adverse cardiovascular events in human immunodeficiency virus (hiv)-infected subjects
WO2020253896A1 (en) * 2019-06-21 2020-12-24 Prihoda S.R.O. Nozzle and air conditioning duct

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FR3135512B1 (en) 2024-05-31

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