WO2016083169A1 - Ventilation device, in particular for a vehicle passenger compartment - Google Patents

Ventilation device, in particular for a vehicle passenger compartment Download PDF

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Publication number
WO2016083169A1
WO2016083169A1 PCT/EP2015/076647 EP2015076647W WO2016083169A1 WO 2016083169 A1 WO2016083169 A1 WO 2016083169A1 EP 2015076647 W EP2015076647 W EP 2015076647W WO 2016083169 A1 WO2016083169 A1 WO 2016083169A1
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WO
WIPO (PCT)
Prior art keywords
aerator
nebulizer
ventilation device
air flow
microdroplets
Prior art date
Application number
PCT/EP2015/076647
Other languages
French (fr)
Inventor
Vincent Feuillard
Philippe KERG
Frédéric Ladrech
Jean-Pierre Majchrzak
Yvan Lechat
Isabelle LAVANDIER
Franck Truillet
Pascal Harand
Gilles Rivet
Laurence Cornu
Original Assignee
Valeo Systemes Thermiques
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 Valeo Systemes Thermiques filed Critical Valeo Systemes Thermiques
Priority to EP15797056.7A priority Critical patent/EP3224069A1/en
Priority to CN201580064089.0A priority patent/CN107000546A/en
Publication of WO2016083169A1 publication Critical patent/WO2016083169A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H3/00—Other air-treating devices
    • B60H3/02—Moistening ; Devices influencing humidity levels, i.e. humidity control
    • B60H3/022—Moistening ; Devices influencing humidity levels, i.e. humidity control for only humidifying the air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/34—Nozzles; Air-diffusers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B17/00—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
    • B05B17/04—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods
    • B05B17/06—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations
    • B05B17/0607—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers
    • B05B17/0638—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers spray being produced by discharging the liquid or other fluent material through a plate comprising a plurality of orifices

Definitions

  • the invention relates to a ventilation device, in particular for a vehicle interior.
  • the air cooling systems for a vehicle most often incorporate an air conditioner to ensure the thermal comfort of the passengers positioned at the front and the rear, by establishing in the passenger compartment a temperature lower than the external temperature. .
  • These systems ventilate cooled air so that they provide thermal comfort to the occupants of the vehicle.
  • a first disadvantage of such systems is that the cooled air is dried.
  • the seats at the rear of the cabin are often less well ventilated, so they are also less refreshed.
  • the condensed microdroplets that form at the inner walls of the aeration pipes are usually collected in a channel.
  • the invention relates to a ventilation device, in particular for a vehicle interior, comprising an aerator and a nebulizer, said aerator being configured to adjust a passage of an air flow and said nebulizer being arranged to deliver microdrops nebulized liquid in said air flow.
  • said nebulizer is positioned downstream of said aerator.
  • the ventilation and / or ventilation device advantageously makes it possible to create a nebulization flow, directly in the aeration and / or ventilation air flow, which favors the evaporation of the microdrops of this device. nebulization flow and reduces or even eliminates the risk of condensation.
  • the microdroplets of nebulized liquid are generated directly in the passenger compartment, so that the risk of stagnation of liquid in the aeration ducts due to condensation is discarded.
  • the ventilation and / or ventilation device of the invention has the advantages of a diffusion closer to the user, a quick feeling by the user and a quantity of liquid. used which is controlled and optimized.
  • the nebulizer is oriented with respect to said aerator so that the microdroplets come into contact with the air flow
  • the flow of air is diffused from the aerator substantially inside a cone whose apex is based on said aerator,
  • said cone has an opening angle of between 10 ° and 45 °, in particular an opening angle of 30 °
  • microdroplets of nebulized liquid are delivered by forming a cloud of microdroplets, said cloud being substantially circumscribed within a cone whose apex is based at said nebulizer, - said cone has an opening angle of between 10 ° and 45 ° including an opening angle of 30 °
  • a main airflow outlet direction downstream of the aerator forms a zero or acute angle with a main direction of nebulization at the outlet of the nebulizer, in particular between 0 and 90 ° a main airflow outlet direction downstream of the aerator forms an obtuse angle with a main direction of nebulization at the outlet of the nebulizer,
  • a main airflow outlet direction downstream of the aerator is substantially parallel to a main direction of nebulization at the outlet of the nebulizer
  • the nebulizer comprises a liquid supply means, integrated or remote,
  • the aeration device of the invention further comprises a main air duct, opening onto said aerator, and a blower configured to generate said air flow in said duct,
  • the aeration device of the invention furthermore comprises an air intake enabling said propulsor to be fed
  • said nebulizer is of piezoelectric type
  • said liquid is water
  • said liquid comprises perfume
  • said liquid comprises essential oils
  • said liquid comprises an antimicrobial compound
  • the aerator is steerable, especially with respect to the passenger compartment of the vehicle, - the main nebulizing direction at the outlet of the nebulizer is steerable, especially with respect to the passenger compartment of the vehicle.
  • FIG. 1 is an isometric view, slightly inclined, of an aeration device according to the invention, arranged inside a vehicle passenger compartment,
  • FIG. 2 is a cross-sectional view of FIG.
  • the invention relates to a ventilation device comprising an aerator 20 and a nebulizer 30.
  • the aerator 20 is configured to adjust a passage of an air flow.
  • said aerator 20 opens on an external medium and is designed to allow the passage of the air flow to said external medium, especially in all or nothing mode; it may also be designed to regulate a flow rate of said air flow and / or allow to choose its orientation.
  • the outside environment is here a vehicle interior, including automotive.
  • the nebulizer 30 is arranged to deliver microdroplets of nebulized liquid in said air flow.
  • the size of the drops of nebulized liquid can vary from micrometer to a few tens of micrometers. For example, the size of the drops will here be between 5 and 15 microns.
  • said nebulizer 30 is positioned downstream of said aerator 20 in the direction of flow of said air flow.
  • the nebulizer 30 is not positioned at said aerator 20; it is also not positioned upstream of said aerator 20.
  • Said nebulizer 30 is here located at a housing inside which it is concealed. It comprises a nebulizing head which only outcrops said housing.
  • the nebulizer 30 is oriented relative to said aerator 20 so that the microdrops come into contact with the air flow. This means that the microdroplets of nebulized liquid are distributed to the air flow, and that they come into contact with said flow of air after it has emerged from the aerator 20 (see Figure 2).
  • the air flow is diffused from the aerator substantially inside a cone 21 whose apex 22 is based at said aerator 20.
  • microdroplets of nebulized liquid are delivered by forming a cloud of microdroplets.
  • Said cloud is substantially circumscribed the inside of a cone 31 whose apex 32 is based at said nebulizer 30, in particular at the level of the nebulization head (see Figure 2).
  • a cloud is a mist of microdroplets that occupies a relatively small area of the passenger compartment, said area being difficult to perceive with the naked eye.
  • the main airflow outlet direction coincides with the height of the air flow cone 21, the top 22 of which is situated at the level of said aerator 20.
  • Said main direction of airflow exit is marked A20 on Figure 2.
  • Said two directions A20, A30 are intersecting; they form an acute angle - even obtuse - between them.
  • the angle formed between said two directions A20, A30 is a function of the orientation of the air flow downstream of the aerator 20 and the positioning of the nebulizer 30 relative to said aerator 20.
  • the flow of air is generated upstream of said aerator 20 by a blower 40.
  • This blower 40 is connected to said aerator 20 by a flow conduit 41 opening on said aerator 20.
  • Said blower is further supplied with air by an air intake 42.
  • the nebulizer 30 comprises an integrated or remote liquid supply means.
  • the nebulizer 30 will include an integrated liquid reservoir, or even a liquid reservoir placed at a distance (alternative not shown here).
  • a liquid reservoir placed at a distance it will be planned to connect it to the nebulizer 30 via a tube, in particular a flexible tube, which will supply the nebulizer 30 with liquid.
  • nebulizer 30 comprises a nebulizing head for the distribution of nebulized liquid in the passenger compartment, while the nebulization of the liquid is upstream of said head and the nebulized liquid is conveyed to said nebulizing head through a conduit, possibly flexible.
  • the part of the nebulizer ensuring the generation of microdrops can then be located in contact with said reservoir.
  • the liquid reservoir is intended to contain water.
  • It may also include perfume, or even an antimicrobial compound and / or antihistamine.
  • said nebulizer 30 is, in particular, piezoelectric type. It comprises, for example, a micro-perforated membrane, excited by a piezoelectric element to produce said microdroplets under the effect of vibrations of said flexible membrane. Said membrane is formed, for example, of a concave grid which resonates by piston effect. It may be of any other type without departing from the scope of the invention.
  • the device of the invention is intended to be integrated inside a box, itself configured to be contained in a casing of the passenger compartment of a motor vehicle, preferably a ceiling of a motor vehicle.
  • Said housing is provided with a first orifice for the intake of air 42 and a second orifice accommodating said aerator 20.

Abstract

The invention relates to a ventilation device, in particular for a vehicle passenger compartment, comprising an aerator (20) and a nebulizer (30), the aerator (20) being designed to adjust a passage of an airflow and the nebulizer (30) being arranged to deliver micro-drops of nebulized liquid in the airflow, the nebulizer (30) being positioned downstream of the aerator (20).

Description

DISPOSITIF D'AERATION, NOTAMMENT POUR UN HABITACLE DE VEHICULE  AERATION DEVICE, IN PARTICULAR FOR A VEHICLE HABITACLE
L'invention concerne un dispositif d'aération, notamment pour un habitacle de véhicule. The invention relates to a ventilation device, in particular for a vehicle interior.
Les systèmes de rafraîchissement d'air pour véhicule, notamment automobile, intègrent le plus souvent un climatiseur pour assurer le confort thermique des passagers positionnés à l'avant et à l'arrière, en établissant dans l'habitacle une température inférieure à la température externe. Ces systèmes ventilent de l'air rafraîchi de sorte qu'ils apportent un confort thermique aux occupants du véhicule. Un premier inconvénient de tels systèmes est que l'air rafraîchi est asséché. Par ailleurs, les places situées à l'arrière de l'habitacle sont souvent moins bien ventilées, de sorte qu'elles sont aussi moins bien rafraîchies. The air cooling systems for a vehicle, in particular an automobile, most often incorporate an air conditioner to ensure the thermal comfort of the passengers positioned at the front and the rear, by establishing in the passenger compartment a temperature lower than the external temperature. . These systems ventilate cooled air so that they provide thermal comfort to the occupants of the vehicle. A first disadvantage of such systems is that the cooled air is dried. In addition, the seats at the rear of the cabin are often less well ventilated, so they are also less refreshed.
II est aussi à noter que tous les véhicules ne sont pas nécessairement munis de climatiseur.  It should also be noted that not all vehicles are equipped with an air conditioner.
Afin d'améliorer la situation, il a déjà été proposé de nébuliser de l'eau dans des canalisations d'aération situées à l'arrière d'un organe d'aération à travers lequel un flux d'air et de microgouttes d'eau débouchent dans l'habitacle. Lesdites microgouttes d'eau nébulisées sont diffusées avec le flux d'air destiné à l'aération et/ou la ventilation, de sorte qu'elles s'évaporent en provoquant un abaissement de température du fait de la chaleur latente de vaporisation qui est alors absorbée. Une telle solution permet de pallier au moins partiellement l'absence de climatiseur ou d'améliorer le rafraîchissement de l'habitacle quand un tel climatiseur est présent mais insuffisant localement, en mettant à disposition un flux d'air d'appoint pouvant être dirigé en n'importe quel endroit de l'habitacle. Elle contribue également à humidifier l'air.  In order to improve the situation, it has already been proposed to nebulize water in aeration ducts located at the rear of a ventilation member through which a flow of air and water microdroplets get into the cockpit. Said misted water microdroplets are diffused with the air flow intended for aeration and / or ventilation, so that they evaporate causing a lowering of temperature due to the latent heat of vaporization which is then absorbed. Such a solution makes it possible at least partially to overcome the absence of air conditioner or to improve the cooling of the passenger compartment when such an air conditioner is present but insufficient locally, by making available a flow of make-up air that can be directed by any place in the cockpit. It also helps to humidify the air.
Les microgouttes condensées qui se forment au niveau des parois internes des canalisations d'aération sont généralement collectées dans un canal.  The condensed microdroplets that form at the inner walls of the aeration pipes are usually collected in a channel.
L'objectif de l'invention est de réduire voire de supprimer la quantité de microgouttes qui se condensent dans un tel système. Ainsi, l'invention concerne un dispositif d'aération, notamment pour un habitacle de véhicule, comprenant un aérateur et un nébuliseur, ledit aérateur étant configuré pour régler un passage d'un flux d'air et ledit nébuliseur étant agencé pour délivrer des microgouttes de liquide nébulisé dans ledit flux d'air. The objective of the invention is to reduce or even eliminate the amount of microdroplets that condense in such a system. Thus, the invention relates to a ventilation device, in particular for a vehicle interior, comprising an aerator and a nebulizer, said aerator being configured to adjust a passage of an air flow and said nebulizer being arranged to deliver microdrops nebulized liquid in said air flow.
Selon l'invention, ledit nébuliseur est positionné en aval dudit aérateur.  According to the invention, said nebulizer is positioned downstream of said aerator.
L'organe d'aération et/ou de ventilation selon l'invention permet avantageusement de créer un flux de nébulisation, directement dans le flux d'air d'aération et/ou de ventilation, ce qui favorise l'évaporation des microgouttes de ce flux de nébulisation et réduit voire annule le risque de condensation. Les microgouttes de liquide nébulisé sont générées directement dans l'habitacle, de sorte que le risque de stagnation de liquide dans les canalisations d'aération due à la condensation est écarté. The ventilation and / or ventilation device according to the invention advantageously makes it possible to create a nebulization flow, directly in the aeration and / or ventilation air flow, which favors the evaporation of the microdrops of this device. nebulization flow and reduces or even eliminates the risk of condensation. The microdroplets of nebulized liquid are generated directly in the passenger compartment, so that the risk of stagnation of liquid in the aeration ducts due to condensation is discarded.
L'organe d'aération et/ou de ventilation de l'invention présente, en outre, les avantages d'une diffusion au plus près de l'utilisateur, d'un ressenti rapide par l'utilisateur et d'une quantité de liquide utilisé qui est contrôlée et optimisée.  In addition, the ventilation and / or ventilation device of the invention has the advantages of a diffusion closer to the user, a quick feeling by the user and a quantity of liquid. used which is controlled and optimized.
Selon différents modes de réalisation de l'invention, qui pourront être pris ensemble ou séparément : According to various embodiments of the invention, which may be taken together or separately:
- le nébuliseur est orienté par rapport audit aérateur de telle sorte que les microgouttes entre en contact avec le flux d'air,  the nebulizer is oriented with respect to said aerator so that the microdroplets come into contact with the air flow,
- le flux d'air est diffusé à partir de l'aérateur sensiblement à l'intérieur d'un cône dont le sommet est basé au niveau dudit aérateur,  the flow of air is diffused from the aerator substantially inside a cone whose apex is based on said aerator,
- ledit cône présente un angle d'ouverture compris entre 10° et 45° notamment un angle d'ouverture égal à 30°  said cone has an opening angle of between 10 ° and 45 °, in particular an opening angle of 30 °
- les microgouttes de liquide nébulisé sont délivrées en formant un nuage de microgouttes, ledit nuage étant sensiblement circonscrit à l'intérieur d'un cône dont le sommet est basé au niveau dudit nébuliseur, - ledit cône présente un angle d'ouverture compris entre 10° et 45° notamment un angle d'ouverture égal à 30°  - The microdroplets of nebulized liquid are delivered by forming a cloud of microdroplets, said cloud being substantially circumscribed within a cone whose apex is based at said nebulizer, - said cone has an opening angle of between 10 ° and 45 ° including an opening angle of 30 °
- une direction principale de sortie de flux d'air en aval de l'aérateur forme un angle nul ou aigu avec une direction principale de nébulisation en sortie du nébuliseur, notamment compris entre 0 et 90° - une direction principale de sortie de flux d'air en aval de l'aérateur forme un angle obtus avec une direction principale de nébulisation en sortie du nébuliseur, a main airflow outlet direction downstream of the aerator forms a zero or acute angle with a main direction of nebulization at the outlet of the nebulizer, in particular between 0 and 90 ° a main airflow outlet direction downstream of the aerator forms an obtuse angle with a main direction of nebulization at the outlet of the nebulizer,
- une direction principale de sortie de flux d'air en aval de l'aérateur est sensiblement parallèle à une direction principale de nébulisation en sortie du nébuliseur,  a main airflow outlet direction downstream of the aerator is substantially parallel to a main direction of nebulization at the outlet of the nebulizer,
- le nébuliseur comprend un moyen d'alimentation en liquide, intégré ou distant,  the nebulizer comprises a liquid supply means, integrated or remote,
- le dispositif d'aération de l'invention comprend en outre un conduit principal d'air, débouchant sur ledit aérateur, et un pulseur configuré pour générer ledit flux d'air dans ledit conduit,  the aeration device of the invention further comprises a main air duct, opening onto said aerator, and a blower configured to generate said air flow in said duct,
- le dispositif d'aération de l'invention comprend en outre une prise d'air permettant d'alimenter ledit pulseur,  the aeration device of the invention furthermore comprises an air intake enabling said propulsor to be fed,
- ledit nébuliseur est de type piézoélectrique,  said nebulizer is of piezoelectric type,
- ledit liquide est de l'eau,  said liquid is water,
- ledit liquide comprend du parfum,  said liquid comprises perfume,
- ledit liquide comprend des huiles essentielles,  said liquid comprises essential oils,
- ledit liquide comprend un composé antimicrobien,  said liquid comprises an antimicrobial compound,
- l'aérateur est orientable, notamment par rapport à l'habitacle du véhicule, - la direction principale de nébulisation en sortie du nébuliseur est orientable, notamment par rapport à l'habitacle du véhicule.  - The aerator is steerable, especially with respect to the passenger compartment of the vehicle, - the main nebulizing direction at the outlet of the nebulizer is steerable, especially with respect to the passenger compartment of the vehicle.
L'invention sera mieux comprise, et d'autres buts, détails, caractéristiques et avantages de celle-ci apparaîtront plus clairement au cours de la description explicative détaillée qui va suivre, d'au moins un mode de réalisation de l'invention donné à titre d'exemple purement illustratif et non limitatif, en référence aux dessins schématiques annexés : The invention will be better understood, and other objects, details, features and advantages thereof will become more clearly apparent in the following detailed explanatory description of at least one embodiment of the invention given to As a purely illustrative and non-limiting example, with reference to the attached schematic drawings:
- la figure 1 est une vue isométrique, légèrement inclinée, d'un dispositif d'aération selon l'invention, disposé à l'intérieur d'un habitacle de véhicule,  FIG. 1 is an isometric view, slightly inclined, of an aeration device according to the invention, arranged inside a vehicle passenger compartment,
- la figure 2 est une vue en coupe transversale de la figure 1 .  FIG. 2 is a cross-sectional view of FIG.
Comme illustré sur les figures 1 et 2, l'invention concerne un dispositif d'aération comprenant un aérateur 20 et un nébuliseur 30. L'aérateur 20 est configuré pour régler un passage d'un flux d'air. Autrement dit, ledit aérateur 20 débouche sur un milieu extérieur et il est conçu pour autoriser le passage du flux d'air vers ledit milieu extérieur, notamment en mode tout ou rien ; il pourra aussi être conçu pour réguler un débit dudit flux d'air et/ou permettre de choisir son orientation. As illustrated in FIGS. 1 and 2, the invention relates to a ventilation device comprising an aerator 20 and a nebulizer 30. The aerator 20 is configured to adjust a passage of an air flow. In other words, said aerator 20 opens on an external medium and is designed to allow the passage of the air flow to said external medium, especially in all or nothing mode; it may also be designed to regulate a flow rate of said air flow and / or allow to choose its orientation.
Le milieu extérieur est ici un habitacle de véhicule, notamment automobile.  The outside environment is here a vehicle interior, including automotive.
Le nébuliseur 30 est agencé pour délivrer des microgouttes de liquide nébulisé dans ledit flux d'air. La taille des gouttes de liquide nébulisé peut varier du micromètre à quelques dizaines de micromètres. Par exemple, la taille des gouttes sera ici comprise entre 5 et 15 micron mètres. The nebulizer 30 is arranged to deliver microdroplets of nebulized liquid in said air flow. The size of the drops of nebulized liquid can vary from micrometer to a few tens of micrometers. For example, the size of the drops will here be between 5 and 15 microns.
Selon l'invention, ledit nébuliseur 30 est positionné en aval dudit aérateur 20 selon la direction d'écoulement dudit flux d'air. According to the invention, said nebulizer 30 is positioned downstream of said aerator 20 in the direction of flow of said air flow.
Autrement dit, le nébuliseur 30 n'est pas positionné au niveau dudit aérateur 20 ; il n'est pas non plus positionné en amont dudit aérateur 20.  In other words, the nebulizer 30 is not positioned at said aerator 20; it is also not positioned upstream of said aerator 20.
Cela permet avantageusement de diminuer le risque de condensation en amont dudit aérateur 20.  This advantageously makes it possible to reduce the risk of condensation upstream of said aerator 20.
Ledit nébuliseur 30 est ici localisé au niveau d'un logement à l'intérieur duquel il est dissimulé. Il comprend une tête de nébulisation qui seule affleure dudit logement. D'autre part, le nébuliseur 30 est orienté par rapport audit aérateur 20 de telle sorte que les microgouttes entrent en contact avec le flux d'air. Cela signifie que les microgouttes de liquide nébulisé sont distribuées vers le flux d'air, et qu'elles entrent en contact avec ledit flux d'air après que ce dernier ait débouché de l'aérateur 20 (voir figure 2). Said nebulizer 30 is here located at a housing inside which it is concealed. It comprises a nebulizing head which only outcrops said housing. On the other hand, the nebulizer 30 is oriented relative to said aerator 20 so that the microdrops come into contact with the air flow. This means that the microdroplets of nebulized liquid are distributed to the air flow, and that they come into contact with said flow of air after it has emerged from the aerator 20 (see Figure 2).
II est à noter que le flux d'air est diffusé à partir de l'aérateur sensiblement à l'intérieur d'un cône 21 dont le sommet 22 est basé au niveau dudit aérateur 20.  It should be noted that the air flow is diffused from the aerator substantially inside a cone 21 whose apex 22 is based at said aerator 20.
Il est à noter aussi que les microgouttes de liquide nébulisé sont délivrées en formant un nuage de microgouttes. Ledit nuage est sensiblement circonscrit à l'intérieur d'un cône 31 dont le sommet 32 est basé au niveau dudit nébuliseur 30, en particulier au niveau de la tête de nébulisation (voir figure 2). On entend par nuage, un brouillard de microgouttes qui occupe une zone relativement petite de l'habitacle, ladite zone étant difficilement perceptible à l'œil nu. It should also be noted that the microdroplets of nebulized liquid are delivered by forming a cloud of microdroplets. Said cloud is substantially circumscribed the inside of a cone 31 whose apex 32 is based at said nebulizer 30, in particular at the level of the nebulization head (see Figure 2). A cloud is a mist of microdroplets that occupies a relatively small area of the passenger compartment, said area being difficult to perceive with the naked eye.
Pour la suite, nous définirons une direction principale de sortie du flux d'air en aval de l'aérateur 20, ainsi qu'une direction principale de nébulisation en sortie du nébuliseur 30. For the following, we will define a main direction of exit of the air flow downstream of the aerator 20, as well as a main direction of nebulization at the outlet of the nebulizer 30.
La direction principale de sortie de flux d'air est confondue avec la hauteur du cône 21 de flux d'air, dont le sommet 22 est situé au niveau dudit aérateur 20. Ladite direction principale de sortie de flux d'air est repérée A20 sur la figure 2.  The main airflow outlet direction coincides with the height of the air flow cone 21, the top 22 of which is situated at the level of said aerator 20. Said main direction of airflow exit is marked A20 on Figure 2.
La direction principale de nébulisation est confondue avec la hauteur du cône 31 à l'intérieur duquel ledit nuage est circonscrit. Elle est repérée A30 sur la figure 2.  The main direction of nebulization is confused with the height of the cone 31 within which said cloud is circumscribed. It is marked A30 in FIG.
Lesdites deux directions A20, A30 sont sécantes ; elles forment un angle aigu - voire obtus - entre elles. L'angle formé entre lesdites deux directions A20, A30 est fonction de l'orientation du flux d'air en aval de l'aérateur 20 et du positionnement du nébuliseur 30 par rapport audit aérateur 20. II est à noter que le flux d'air est généré en amont dudit aérateur 20 par un pulseur 40. Ce pulseur 40 est relié audit aérateur 20 par un conduit d'écoulement 41 débouchant sur ledit aérateur 20. Ledit pulseur est en outre alimenté en air par une prise d'air 42. II est à noter aussi que le nébuliseur 30 comprend un moyen d'alimentation en liquide intégré ou distant. Autrement dit, le nébuliseur 30 comprendra un réservoir de liquide intégré, voire un réservoir de liquide placé à distance (alternative non illustrée ici).  Said two directions A20, A30 are intersecting; they form an acute angle - even obtuse - between them. The angle formed between said two directions A20, A30 is a function of the orientation of the air flow downstream of the aerator 20 and the positioning of the nebulizer 30 relative to said aerator 20. It should be noted that the flow of air is generated upstream of said aerator 20 by a blower 40. This blower 40 is connected to said aerator 20 by a flow conduit 41 opening on said aerator 20. Said blower is further supplied with air by an air intake 42. It should also be noted that the nebulizer 30 comprises an integrated or remote liquid supply means. In other words, the nebulizer 30 will include an integrated liquid reservoir, or even a liquid reservoir placed at a distance (alternative not shown here).
Dans le cas d'un réservoir de liquide placé à distance, il sera prévu de le relier au nébuliseur 30 via un tube, notamment flexible, qui alimentera le nébuliseur 30 en liquide.  In the case of a liquid reservoir placed at a distance, it will be planned to connect it to the nebulizer 30 via a tube, in particular a flexible tube, which will supply the nebulizer 30 with liquid.
Une alternative supplémentaire (non illustrée) consiste à prévoir la nébulisation du liquide à distance de l'endroit où le liquide, une fois nébulisé, est distribué, notamment en direction de l'habitacle. Cela signifie que le nébuliseur 30 comprend une tête de nébulisation pour la distribution du liquide nébulisé dans l'habitacle, tandis que la nébulisation du liquide se fait en amont de ladite tête et le liquide nébulisé est acheminé à ladite tête de nébulisation par un conduit, éventuellement flexible. La partie du nébuliseur assurant la génération des microgouttes pourra alors être située au contact dudit réservoir. An additional alternative (not shown) is to provide nebulization liquid away from where the liquid, once nebulized, is distributed, especially towards the passenger compartment. This means that the nebulizer 30 comprises a nebulizing head for the distribution of nebulized liquid in the passenger compartment, while the nebulization of the liquid is upstream of said head and the nebulized liquid is conveyed to said nebulizing head through a conduit, possibly flexible. The part of the nebulizer ensuring the generation of microdrops can then be located in contact with said reservoir.
Le réservoir de liquide est destiné à contenir de l'eau. The liquid reservoir is intended to contain water.
Il pourra aussi comprendre du parfum, voire un composé antimicrobien et/ou antihistaminique.  It may also include perfume, or even an antimicrobial compound and / or antihistamine.
Il est à noter que ledit nébuliseur 30 est, notamment, de type piézoélectrique. Il comprend, par exemple, une membrane micro perforée, excitée par un élément piézoélectrique pour produire lesdites microgouttes sous l'effet des vibrations de ladite membrane souple. Ladite membrane est formée, par exemple, d'une grille concave qui résonne par effet piston. Il pourra être de tout autre type sans sortir du cadre de l'invention. It should be noted that said nebulizer 30 is, in particular, piezoelectric type. It comprises, for example, a micro-perforated membrane, excited by a piezoelectric element to produce said microdroplets under the effect of vibrations of said flexible membrane. Said membrane is formed, for example, of a concave grid which resonates by piston effect. It may be of any other type without departing from the scope of the invention.
Il est à noter, encore, que le dispositif de l'invention est destiné à être intégré à l'intérieur d'un boitier, lui-même configuré pour être contenu dans un habillage de l'habitacle d'un véhicule automobile, de préférence un plafond de véhicule automobile. Ledit boîtier est pourvu d'un premier orifice servant pour la prise d'air 42 et d'un second orifice accueillant ledit aérateur 20. It should be noted, again, that the device of the invention is intended to be integrated inside a box, itself configured to be contained in a casing of the passenger compartment of a motor vehicle, preferably a ceiling of a motor vehicle. Said housing is provided with a first orifice for the intake of air 42 and a second orifice accommodating said aerator 20.

Claims

Revendications claims
1 . Dispositif d'aération, notamment pour un habitacle de véhicule, comprenant un aérateur (20) et un nébuliseur (30), ledit aérateur (20) étant configuré pour régler un passage d'un flux d'air et ledit nébuliseur (30) étant agencé pour délivrer des microgouttes de liquide nébulisé dans ledit flux d'air, ledit nébuliseur (30) étant positionné en aval dudit aérateur (20). 1. Aeration device, in particular for a vehicle interior, comprising an aerator (20) and a nebulizer (30), said aerator (20) being configured to adjust a passage of an air flow and said nebulizer (30) being arranged to deliver microdroplets of nebulized liquid into said air flow, said nebulizer (30) being positioned downstream of said aerator (20).
2. Dispositif d'aération selon la revendication précédente, dans lequel le nébuliseur (30) est orienté par rapport audit aérateur (20) de telle sorte que les microgouttes entre en contact avec le flux d'air. 2. Ventilation device according to the preceding claim, wherein the nebulizer (30) is oriented relative to said aerator (20) so that the microdropts come into contact with the air flow.
3. Dispositif d'aération selon l'une quelconque des revendications 1 ou 2, dans lequel le flux d'air est diffusé à partir de l'aérateur (20) sensiblement à l'intérieur d'un cône (21 ) dont le sommet (22) est basé au niveau dudit aérateur (20). 3. Ventilation device according to any one of claims 1 or 2, wherein the air flow is diffused from the aerator (20) substantially inside a cone (21) whose apex (22) is based at said aerator (20).
4. Dispositif d'aération selon l'une quelconque des revendications précédentes, dans lequel les microgouttes de liquide nébulisé sont délivrées en formant un nuage de microgouttes, ledit nuage étant sensiblement circonscrit à l'intérieur d'un cône (31 ) dont le sommet (32) est basé au niveau dudit nébuliseur (30). 4. Ventilation device according to any one of the preceding claims, wherein the microdroplets of nebulized liquid are delivered by forming a cloud of microdroplets, said cloud being substantially circumscribed inside a cone (31) whose apex (32) is based at said nebulizer (30).
5. Dispositif d'aération selon l'une quelconque des revendications précédentes, dans lequel une direction principale de sortie de flux d'air (A20) en aval de l'aérateur (20) forme un angle nul ou aigu avec une direction principale de nébulisation (A30) en sortie du nébuliseur (30). 5. Ventilation device according to any one of the preceding claims, wherein a main direction of airflow outlet (A20) downstream of the aerator (20) forms a zero or acute angle with a main direction of nebulization (A30) at the outlet of the nebulizer (30).
6. Dispositif d'aération selon l'une quelconque des revendications 1 à 4, dans lequel une direction principale de sortie de flux d'air (A20) en aval de l'aérateur (20) forme un angle obtus avec une direction principale de nébulisation (A30) en sortie du nébuliseur (30). A ventilation device according to any one of claims 1 to 4, wherein a main airflow outlet direction (A20) downstream of the aerator (20) forms an obtuse angle with a main direction of nebulization (A30) at the outlet of the nebulizer (30).
7. Dispositif d'aération selon l'une quelconque des revendications précédentes, dans lequel le nébuliseur (30) comprend un moyen d'alimentation en liquide, intégré ou distant. An aeration device according to any one of the preceding claims, wherein the nebulizer (30) comprises an integrated or remote liquid supply means.
8. Dispositif d'aération selon l'une quelconque des revendications précédentes, comprenant en outre un conduit principal d'air (41 ), débouchant sur ledit aérateur (20), et un pulseur (40) configuré pour générer ledit flux d'air dans ledit conduit (41 ). 8. Ventilation device according to any one of the preceding claims, further comprising a main air duct (41), opening on said aerator (20), and a blower (40) configured to generate said air flow in said conduit (41).
9. Dispositif d'aération selon la revendication précédente, comprenant en outre une prise d'air (42) permettant d'alimenter ledit pulseur (40). 9. Ventilation device according to the preceding claim, further comprising an air intake (42) for feeding said blower (40).
10. Dispositif d'aération selon l'une quelconque des revendications précédentes, dans lequel ledit nébuliseur (30) est de type piézoélectrique. 10. Ventilation device according to any one of the preceding claims, wherein said nebulizer (30) is of piezoelectric type.
PCT/EP2015/076647 2014-11-26 2015-11-16 Ventilation device, in particular for a vehicle passenger compartment WO2016083169A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP15797056.7A EP3224069A1 (en) 2014-11-26 2015-11-16 Ventilation device, in particular for a vehicle passenger compartment
CN201580064089.0A CN107000546A (en) 2014-11-26 2015-11-16 It is used in particular for the ventilation unit of vehicle's passenger compartment

Applications Claiming Priority (2)

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FR1461514 2014-11-26
FR1461514A FR3028924A1 (en) 2014-11-26 2014-11-26 AERATION DEVICE, IN PARTICULAR FOR A VEHICLE HABITACLE

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FR3070908B1 (en) * 2017-09-11 2020-07-24 Valeo Systemes Thermiques MOTOR VEHICLE NEBULIZATION SYSTEM

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JP2007163109A (en) * 2005-12-16 2007-06-28 Matsushita Electric Works Ltd Air conditioner provided with electrostatic atomization device
FR2997753A1 (en) * 2012-11-08 2014-05-09 Peugeot Citroen Automobiles Sa Air treatment device for enclosure of passenger compartment of e.g. car, has control unit prohibiting and authorizing delivery of liquid in states, and action unit acting on control unit to place unit in states
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FR3028924A1 (en) 2016-05-27
CN107000546A (en) 2017-08-01

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