EP0628356A1 - Piezoelectrical nebuliser - Google Patents
Piezoelectrical nebuliser Download PDFInfo
- Publication number
- EP0628356A1 EP0628356A1 EP94401086A EP94401086A EP0628356A1 EP 0628356 A1 EP0628356 A1 EP 0628356A1 EP 94401086 A EP94401086 A EP 94401086A EP 94401086 A EP94401086 A EP 94401086A EP 0628356 A1 EP0628356 A1 EP 0628356A1
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- EP
- European Patent Office
- Prior art keywords
- flexible
- reservoir
- housing
- vibrating
- vibrating member
- 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.)
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Classifications
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- 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
- B05B17/0646—Vibrating plates, i.e. plates being directly subjected to the vibrations, e.g. having a piezoelectric transducer attached thereto
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- 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
- B05B17/0653—Details
- B05B17/0676—Feeding means
- B05B17/0684—Wicks or the like
Definitions
- a nebulizing device consisting of a vibrating diffusing member, a high frequency generator, an electrical supply intended for the electrical supply of the generator, a reservoir for the fluid product, mounted in the device detachably and independently of the vibrating member, a means for supplying the vibrating member with product being provided, at least part of the feeding means such as a pump or a simple valve being carried through the tank;
- a device is for example described in FR-A-2 459 052, with reference to its FIG.
- a two-part reservoir comprises a liquid pump and a single-way distributor, or alternatively a simple valve associated with a reservoir containing a gas keeping the liquid under overpressure;
- the upper part of the reservoir has an extension crossed by an outlet channel and, at the free end of the extension, a preparation member in the form of a concave cup partially covered by an upper baffle inclined towards the vibrating diffusing member, here l atomizing element in the form of a spraying plate, as described on page 4 lines 19 to 39 of the document; thus, the liquid product is projected onto the spraying plate by the supply means:
- such an arrangement has the disadvantage that to be sure that the liquid product reaches the spraying plate, it is necessary to provide complicated deflector members such as the concave cup and its upper baffle not always easy to size and position, especially if you do not want liquid product to be sprayed also outside and around the spray plate, which not only stains the device but also leads to consumption unused liquid product, consumption all the more regrettable especially
- the object of the present invention is to produce a nebulization device which does not have these drawbacks.
- an apparatus for nebulizing a fluid product comprising a nebulizing device consisting of a vibrating diffusing member, a high frequency generator, an electrical supply intended for the electrical supply of the generator, a reservoir for the fluid product to be nebulized, mounted in the device in a removable manner and independently of the vibrating member, means for supplying product with the vibrating member being provided, at least part of the feeding means such as a pump or a simple valve being carried by the reservoir, is characterized by the fact that the pump or the simple valve having an operating rod, a transfer part carries, on the one hand, the operating rod and, on the other hand, a member flexible capable of conveying the fluid product on the vibrating member and placed in line with it, communication is provided between the volumes of the transfer part occupied by the operating rod and the 'flexible organ.
- the vibrating organ consists of a metal or ceramic plate; the plate can be full or porous, or micro-pierced in the form of a grid.
- the plate can be in the form of a spherical or conical bowl; it can also be flat, and arranged at any inclination in the nebulization apparatus.
- the fluid product to be nebulized is generally a liquid, for example a perfuming or treating composition, aqueous or hydroalcoholic; it can also be a gel, the viscosity of which, different from that of water or alcohol, allows, in the case where the vibrating member is a grid-shaped plate, to provide more perforations in the grid larger than those necessary for a liquid product, which are not crossed by the gel in the absence of vibrations.
- the gel has thixotropic characteristics, as soon as it is vibrated, it changes to a more fluid state and its nebulization is facilitated.
- the device comprises a housing, a housing for mounting the reservoir in a removable manner, and a diffusion mouth.
- the housing is limited by a wall having an opening through which the product supply means fluid of the vibrating member, an operating member being provided for the implementation of the supply means.
- the supply means is entirely carried by the reservoir, and is therefore, like the latter, entirely removable; thanks to this arrangement, as the vibration of the diffusing vibrating member automatically ensures its cleaning, it is possible to use successively in the same device at least two different products: in the case of the treatment of the skin , for example, two products can be applied successively, even if these two products are made incompatible when put together for too long; in the case of a perfume, in particular, an evening perfume can be treated in the same apparatus as a morning perfume without modifying the note of the evening perfume by that of the morning.
- the reservoir is slidably mounted in the housing.
- the electrical supply is secured to the tank; the power supply is associated with an electrical contactor, one of the contacts of which is carried by the operating member; the housing has a receptacle for receiving a spare tank.
- the flexible member is a brush.
- the flexible member is a flexible elastic foam or sinter.
- the flexible member is a flocked foam or a flocked flexible elastomer plastic.
- the flexible member is in the form of a semi-flexible tulip with fringes extending the transfer part.
- the reservoir is made of a rigid material, glass, ceramic, or synthetic material.
- the reservoir is a flexible pocket.
- the vibrating member and the transfer part are carried by the housing and the transfer part crosses the opening of the wall of the housing by bearing on said wall.
- the vibrating member and the transfer part are carried by the operating member housed in a cavity bordered by the wall provided with the opening, the transfer part passing through said opening bearing on said wall.
- an apparatus for nebulizing a liquid comprises a housing 103 consisting of two attached shells, an upper shell 103A, and a lower shell 103B.
- the upper shell 103A defines a cylindrical cavity 105 opening at its upper part and having a wall 118; the two shells 103A, 103B also define, under the cavity 105, a housing 104.
- An operating member 110 is constituted by a hollow push-button mounted to slide in the cavity 105 and having, on the one hand, a transverse bottom wall and, on the other hand, an opening 114 constituting a diffusion mouth for the product nebulized.
- a grid 102 is arranged, inside the operating member 110, in the vicinity of its bottom wall which carries a transfer part 160; the perforations of the grid 102 have a micrometric size: they have for example a diameter between 1 and 200 microns; they can be obtained chemically or by laser machining, the grid consisting of a ceramic material; the grid 102 constitutes a finely calibrated screen allowing to receive a liquid product which it maintains by surface tension.
- the transfer piece 160 passes through an opening made in the transverse wall of the operating member 110 and bears, by a flange 161, on said wall; the transfer part 160 comprises two bores 162, 163 defining two volumes separated by a veil but communicating by an orifice 164 formed in said veil.
- the reservoir 106 consists of a flexible pocket, filled with airless liquid, and the supply means 107 comprises a pump without air intake; this allows use of the device in all positions, and, at the same time, better conservation of the liquid product, especially when this liquid is a perfume.
- the operating rod 146 of the pump 107 takes its end in the bore 162, while the bore 163 receives a flexible member with a capillary structure or felt 109, such as an open cell foam for example, resting on the grid 102, also part of the supply means.
- a flexible member with a capillary structure or felt 109 such as an open cell foam for example, resting on the grid 102, also part of the supply means.
- a high frequency generator 120 is placed in the housing 104, as is the power supply 108 for this generator; a conductor 117 connects a pole of the power supply to a terminal of the generator; the other terminal of the generator 120 and the other pole of the supply 108 are respectively connected to contacts 112, 113 carried by the interior wall of the cavity 105, by conductors 115, 116; the operating member 110 carries at its periphery a conductive ring 111.
- the bag 106 has been previously filled with a liquid to be nebulized; this liquid could be, for example, a perfume, an eau de toilette, a product for facial care, or the like.
- Such a cloud, emitted at the outlet of the housing 103 by the diffusion mouth 114, has the advantage of not being wetting and is therefore advantageous for applications such as cosmetics or pharmaceuticals.
- the nebulization apparatus according to the invention which evacuates the cloud of liquid particles having passed through the grid 102, allows the latter to remain clean after use and therefore to be able to replace a first reservoir containing a first liquid by a second reservoir containing a second liquid, different from the first, without the second liquid being polluted by the first; this is advantageous in particular in cosmetics when the liquids are perfumes.
- These different tanks constitute, so to speak, refills for the device; it is possible, according to a variant not shown, to arrange the housing 103 so as to provide a receptacle receiving a spare tank equipped with a felt protected by a cap and containing the same liquid or a liquid different from that of the tank 106 ; with a capacity of 2 to 5 milliliters of liquid, such reservoirs lead to nebulization devices of very small size, easily transportable in a handbag, or a pocket of a garment.
- Such an apparatus also has the advantage of being able to be used in any position.
- the housing 203 comprises two shells 203A, 203B;
- the supply means comprises a pump 107 having an operating rod 146 received in a bore 162 of a transfer part 160;
- the transfer part 160 has another bore 163 receiving a felt, the bores 162 and 163 communicating through an orifice 164;
- a flange 161 of the transfer part 160 allows it to bear on the wall 216 of the housing 204 provided in the shell 203A by passing through the circular opening 205.
- the pump 107 is carried by a reservoir 206 whose bottom supports externally the power supply 208 for a generator 220 housed in the shell 203A.
- a 210-shaped actuator flexible lever carries a contact 211 for closing the electrical supply circuit of the generator 220;
- a grid 202 allows the nebulization of liquid through the diffusion mouth 214 formed in the lower part of the shell 203B.
- Figures 3 to 6 show alternative embodiments of flexible members associated with the transfer part 160 carrying the operating rod 146 of the pump 107;
- the flexible member 209 is a brush having bristles whose length and / or composition and / or dimensions of the section would adjust the flow of liquid;
- the flexible member 309 is cotton or foam, polyurethane or polyether, with open cells; it can also be an elastomer or polyethylene sinter; according to Figure 5, the flexible member 409 is flocked, whether it is foam or sintered, flexible elastomeric plastic.
- the flexible member 509 is more suitable for feeding the vibrating member 502 when the product is a gel; the flexible member 509 consists of a kind of semi-flexible tulip with fringes 510 extending the transfer part 160; it will have been noted that the vibrating member 502, in the form of a metal disc has larger perforations than those in FIGS. 3 to 5 which are more suitable for a liquid product.
- FIG. 7 shows an example of an apparatus, the vibrating member 302 of which is an opaque, non-porous ceramic without holes; the housing 303 has a lateral diffusion mouth 314 placed, with respect to FIG. 7, above the vibrating member 302; the nebulized particles rebound on the vibrating member 302 and pass through the diffusion mouth 314.
- the supply means comprises a simple valve 307.
- FIG 8 shows a tank 306 equipped with the supply means of Figure 4; the reservoir 306, which may be made of glass, is protected by an envelope 139 on which a cover 138 for protecting the supply means is slammed, the assembly constituting a storable refill 300; according to the example shown in this figure, the power supply 308 is carried by the casing 139.
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- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
Abstract
Description
On connait des appareils de nébulisation d'un produit fluide, comportant un dispositif de nébulisation constitué d'un organe vibrant diffusant, un générateur haute fréquence, une alimentation électrique destinée à l'alimentation électrique du générateur, un réservoir pour le produit fluide, monté dans l'appareil de manière amovible et indépendament de l'organe vibrant, un moyen d'alimentation en produit de l'organe vibrant étant prévu, une partie au moins du moyen d'alimentation telle qu'une pompe ou une simple valve étant portée par le réservoir ; un tel dispositif est par exemple décrit dans FR-A-2 459 052, en référence à sa figure 1, et utilisé notamment dans des applications médicales comme des inhalateurs ; un réservoir en deux parties comprend une pompe à liquide et un distributeur à une seule voie, ou en variante une simple valve associée à un réservoir contenant un gaz maintenant le liquide en surpression ; la partie supérieure du réservoir comporte un prolongement traversé par un canal de sortie et, à l'extrémité libre du prolongement, un organe de préparation en forme de coupelle concave recouverte en partie par une chicane supérieure inclinée vers l'organe vibrant diffusant, ici l'élément atomiseur en forme de plaque pulvérisatrice, comme cela est décrit page 4 lignes 19 à 39 du document ; ainsi, le produit liquide est projeté sur la plaque pulvérisatrice par le moyen d'alimentation : une telle disposition présente l'inconvénient que pour être sûr que le produit liquide atteigne la plaque pulvérisatrice, il est nécessaire de prévoir des organes déflecteurs compliqués tels que la coupelle concave et sa chicane supérieure pas toujours faciles à dimensionner et positionner, surtout si on ne souhaite pas que du produit liquide soit projeté également en dehors et autour de la plaque pulvérisatrice, ce qui non seulement souille l'appareil mais également conduit à une consommation de produit liquide inutilisé, consommation d'autant plus regrettable notamment lorsque l'appareil de nébulisation est de très faible encombrement de façon à être facilement transportable dans un sac à main ou une poche de vêtement.There are known devices for nebulizing a fluid product, comprising a nebulizing device consisting of a vibrating diffusing member, a high frequency generator, an electrical supply intended for the electrical supply of the generator, a reservoir for the fluid product, mounted in the device detachably and independently of the vibrating member, a means for supplying the vibrating member with product being provided, at least part of the feeding means such as a pump or a simple valve being carried through the tank; such a device is for example described in FR-A-2 459 052, with reference to its FIG. 1, and used in particular in medical applications such as inhalers; a two-part reservoir comprises a liquid pump and a single-way distributor, or alternatively a simple valve associated with a reservoir containing a gas keeping the liquid under overpressure; the upper part of the reservoir has an extension crossed by an outlet channel and, at the free end of the extension, a preparation member in the form of a concave cup partially covered by an upper baffle inclined towards the vibrating diffusing member, here l atomizing element in the form of a spraying plate, as described on page 4 lines 19 to 39 of the document; thus, the liquid product is projected onto the spraying plate by the supply means: such an arrangement has the disadvantage that to be sure that the liquid product reaches the spraying plate, it is necessary to provide complicated deflector members such as the concave cup and its upper baffle not always easy to size and position, especially if you do not want liquid product to be sprayed also outside and around the spray plate, which not only stains the device but also leads to consumption unused liquid product, consumption all the more regrettable especially when the nebulization device is very compact so as to be easily transportable in a handbag or a pocket of clothing.
La présente invention a pour but de réaliser un appareil de nébulisation ne présentant pas ces inconvénients.The object of the present invention is to produce a nebulization device which does not have these drawbacks.
Selon la présente invention, un appareil de nébulisation d'un produit fluide comportant un dispositif de nébulisation constitué d'un organe vibrant diffusant, un générateur haute fréquence, une alimentation électrique destinée à l'alimentation électrique du générateur, un réservoir pour le produit fluide à nébuliser, monté dans l'appareil de manière amovible et indépendament de l'organe vibrant, un moyen d'alimentation en produit de l'organe vibrant étant prévu, une partie au moins du moyen d'alimentation telle qu'une pompe ou une simple valve étant portée par le réservoir, est caractérisé par le fait que la pompe ou la simple valve ayant une tige de manoeuvre, une pièce de transfert porte, d'une part, la tige de manoeuvre et, d'autre part, un organe souple apte à véhiculer le produit fluide sur l'organe vibrant et placé au droit de celui-ci, une communication étant prévue entre les volumes de la pièce de transfert occupés par la tige de manoeuvre et l'organe souple.According to the present invention, an apparatus for nebulizing a fluid product comprising a nebulizing device consisting of a vibrating diffusing member, a high frequency generator, an electrical supply intended for the electrical supply of the generator, a reservoir for the fluid product to be nebulized, mounted in the device in a removable manner and independently of the vibrating member, means for supplying product with the vibrating member being provided, at least part of the feeding means such as a pump or a simple valve being carried by the reservoir, is characterized by the fact that the pump or the simple valve having an operating rod, a transfer part carries, on the one hand, the operating rod and, on the other hand, a member flexible capable of conveying the fluid product on the vibrating member and placed in line with it, communication is provided between the volumes of the transfer part occupied by the operating rod and the 'flexible organ.
L'organe vibrant est constitué d'une plaque métallique ou en céramique ; la plaque peut être pleine ou poreuse, ou micropercée en forme de grille. La plaque peut être en forme de cuvette sphérique ou conique ; elle peut également être plane, et disposée selon toute inclinaison dans l'appareil de nébulisation.The vibrating organ consists of a metal or ceramic plate; the plate can be full or porous, or micro-pierced in the form of a grid. The plate can be in the form of a spherical or conical bowl; it can also be flat, and arranged at any inclination in the nebulization apparatus.
Le produit fluide à nébuliser est en général un liquide, par exemple une composition parfumante ou traitante, aqueuse ou hydroalcoolique ; ce peut être également un gel, dont la viscosité, différente de celle de l'eau ou de l'acool, permet, dans le cas où l'organe vibrant est une plaque en forme de grille, de prévoir dans la grille des perforations plus grosses que celles nécessaires pour un produit liquide, qui ne sont pas traversées par le gel en l'absence de vibrations. De plus, lorsque le gel présente des caractéristiques thixotropiques, dès qu'il est vibré, il passe à un état plus fluide et sa nébulisation est facilitée.The fluid product to be nebulized is generally a liquid, for example a perfuming or treating composition, aqueous or hydroalcoholic; it can also be a gel, the viscosity of which, different from that of water or alcohol, allows, in the case where the vibrating member is a grid-shaped plate, to provide more perforations in the grid larger than those necessary for a liquid product, which are not crossed by the gel in the absence of vibrations. In addition, when the gel has thixotropic characteristics, as soon as it is vibrated, it changes to a more fluid state and its nebulization is facilitated.
De préférence, l'appareil comporte un boîtier, un logement pour le montage du réservoir de manière amovible, et une bouche de diffusion.Preferably, the device comprises a housing, a housing for mounting the reservoir in a removable manner, and a diffusion mouth.
Avantageusement, le logement est limité par une paroi ayant une ouverture traversée par le moyen d'alimentation en produit fluide de l'organe vibrant, un organe de manoeuvre étant prévu pour la mise en oeuvre du moyen d'alimentation.Advantageously, the housing is limited by a wall having an opening through which the product supply means fluid of the vibrating member, an operating member being provided for the implementation of the supply means.
Avantageusement, le moyen d'alimentation est entièrement porté par le réservoir, et se trouve dès lors, comme celui-ci, entièrement amovible ; grâce à cette disposition, comme la mise en vibrations de l'organe vibrant diffusant assure automatiquement le nettoyage de celui-ci, il est possible d'utiliser successivement dans le même appareil au moins deux produits différents : dans le cas du traitement de la peau, par exemple, deux produits peuvent être appliqués successivement, même si ces deux produits sont rendus incompatibles lorsqu'ils sont mis ensemble trop longtemps ; dans le cas d'un parfum, notamment, un parfum du soir peut être traité dans le même appareil qu'un parfum du matin sans modification de la note du parfum du soir par celui du matin.Advantageously, the supply means is entirely carried by the reservoir, and is therefore, like the latter, entirely removable; thanks to this arrangement, as the vibration of the diffusing vibrating member automatically ensures its cleaning, it is possible to use successively in the same device at least two different products: in the case of the treatment of the skin , for example, two products can be applied successively, even if these two products are made incompatible when put together for too long; in the case of a perfume, in particular, an evening perfume can be treated in the same apparatus as a morning perfume without modifying the note of the evening perfume by that of the morning.
Avantageusement, le réservoir est monté coulissant dans le logement.Advantageously, the reservoir is slidably mounted in the housing.
De préférence, l'alimentation électrique est solidaire du réservoir ; l'alimentation électrique est associée à un contacteur électrique dont un des contacts est porté par l'organe de manoeuvre ; le boîtier présente un réceptacle pour recevoir un réservoir de rechange.Preferably, the electrical supply is secured to the tank; the power supply is associated with an electrical contactor, one of the contacts of which is carried by the operating member; the housing has a receptacle for receiving a spare tank.
De préférence, l'organe souple est un pinceau.Preferably, the flexible member is a brush.
En variante, l'organe souple est une mousse ou un fritté élastique souple.Alternatively, the flexible member is a flexible elastic foam or sinter.
Dans une autre variante, l'organe souple est une mousse flockée ou un plastique élastomère souple flocké.In another variant, the flexible member is a flocked foam or a flocked flexible elastomer plastic.
Selon une autre variante, l'organe souple est en forme de tulipe semi-souple à franges prolongeant la pièce de transfert.According to another variant, the flexible member is in the form of a semi-flexible tulip with fringes extending the transfer part.
De préférence, le réservoir est en un matériau rigide, en verre, en céramique, ou en matériau de synthèse.Preferably, the reservoir is made of a rigid material, glass, ceramic, or synthetic material.
En variante, le réservoir est une poche souple.Alternatively, the reservoir is a flexible pocket.
Avantageusement, l'organe vibrant et la pièce de transfert sont portés par le boîtier et la pièce de transfert traverse l'ouverture de la paroi du boîtier en prenant appui sur ladite paroi.Advantageously, the vibrating member and the transfer part are carried by the housing and the transfer part crosses the opening of the wall of the housing by bearing on said wall.
De préférence, l'organe vibrant et la pièce de transfert sont portés par l'organe de manoeuvre logé dans une cavité bordée par la paroi munie de l'ouverture, la pièce de transfert traversant ladite ouverture en prenant appui sur ladite paroi.Preferably, the vibrating member and the transfer part are carried by the operating member housed in a cavity bordered by the wall provided with the opening, the transfer part passing through said opening bearing on said wall.
Pour mieux faire comprendre l'objet de l'invention, on va en décrire, maintenant, à titre d'exemple purement illustratif et non limitatif, un mode de réalisation représenté sur les dessins annexés.To better understand the object of the invention, we will now describe, by way of purely illustrative and nonlimiting example, an embodiment shown in the accompanying drawings.
Sur ces dessins :
- la figure 1 est une vue schématique, en coupe, d'un appareil de nébulisation selon l'invention ;
- la figure 2 est une vue schématique, en coupe, d'une variante d'appareil de nébulisation selon l'invention ;
- les figures 3 à 6 montrent différentes formes d'organes souples ;
- la figure 7 montre partiellement une variante d'appareil dont l'organe vibrant est dépourvu de perforations ;
- la figure 8 représente une recharge destinée à un appareil selon l'invention.
- Figure 1 is a schematic sectional view of a nebulization apparatus according to the invention;
- Figure 2 is a schematic view, in section, of a variant of the nebulization apparatus according to the invention;
- Figures 3 to 6 show different forms of flexible members;
- Figure 7 partially shows a variant of the device whose vibrating member is devoid of perforations;
- FIG. 8 represents a refill intended for an apparatus according to the invention.
En se reportant à la figure 1, un appareil de nébulisation d'un liquide selon la présente invention comprend un boîtier 103 constitué de deux coquilles rapportées, une coquille supérieure 103A, et une coquille inférieure 103B. La coquille supérieure 103A définit une cavité 105 cylindrique débouchant à sa partie supérieure et ayant une paroi 118 ; les deux coquilles 103A, 103B définissent également, sous la cavité 105, un logement 104.Referring to Figure 1, an apparatus for nebulizing a liquid according to the present invention comprises a
Un organe de manoeuvre 110 est constitué par un bouton-poussoir creux monté coulissant dans la cavité 105 et présentant, d'une part, une paroi de fond transversale et, d'autre part, une ouverture 114 constituant une bouche de diffusion pour le produit nébulisé. Une grille 102 est disposée, à l'intérieur de l'organe de manoeuvre 110, au voisinage de sa paroi de fond qui porte une pièce de transfert 160 ; les perforations de la grille 102 ont une taille micrométrique : elles ont par exemple un diamètre compris entre 1 et 200 microns ; elles peuvent être obtenues chimiquement ou par usinage laser, la grille étant constituée d'une matière céramique ; la grille 102 constitue un tamis finement calibré permettant de recevoir un produit liquide qu'elle maintient par tension superficielle.An
La pièce de transfert 160 traverse une ouverture ménagée dans la paroi transversale de l'organe de manoeuvre 110 et prend appui, par une collerette 161, sur ladite paroi ; la pièce de transfert 160 comporte deux alésages 162, 163 définissant deux volumes séparés par un voile mais communiquant par un orifice 164 ménagé dans ledit voile.The
Selon cette variante, le réservoir 106 est constitué d'une poche flexible, remplie de liquide sans air, et le moyen d'alimentation 107 comprend une pompe sans reprise d'air ; ceci permet une utilisation de l'appareil dans toutes les positions, et, en même temps, une meilleure conservation du produit liquide, notamment lorsque ce liquide est un parfum.According to this variant, the
La tige de manoeuvre 146 de la pompe 107 prend place par son extrémité dans l'alésage 162, tandis que l'alésage 163 reçoit un organe souple à structure capillaire ou feutre 109, comme une mousse à cellules ouvertes par exemple, en appui sur la grille 102, faisant également partie du moyen d'alimentation.The
Un générateur haute fréquence 120, non détaillé, est placé dans le logement 104, de même que l'alimentation électrique 108 pour ce générateur ; un conducteur 117 relie un pôle de l'alimentation à une borne du générateur ; l'autre borne du générateur 120 et l'autre pôle de l'alimentation 108 sont reliés respectivement à des contacts 112, 113 portés par la paroi intérieure de la cavité 105, par des conducteurs 115, 116 ; l'organe de manoeuvre 110 porte à sa périphérie un anneau conducteur 111.A
Le fonctionnement de l'appareil de nébulisation qui vient d'être décrit est le suivant.The operation of the nebulization device which has just been described is as follows.
La poche 106 a été préalablement remplie d'un liquide à nébuliser ; ce liquide pourrait être, par exemple, un parfum, une eau de toilette, un produit pour le soin du visage, ou autre.The
Lorsque l'utilisateur désire nébuliser du liquide contenu dans la poche 106 préalablement montée dans une ouverture circulaire 119 pratiquée dans le fond de la paroi 118 qui fait partie de la cavité 105, il exerce une action sur l'organe de manoeuvre 110 qui est transmise, par la pièce de transfert 160, à la tige de manoeuvre 146 de la pompe 107 en appui sur la paroi 118, et du liquide est envoyé par la pompe 107 sur la grille 102 à travers le feutre 109 ; parallèlement, l'anneau 111 vient au droit des contacts 112 et 113 et le générateur 120 est alimenté électriquement ; la mise en vibration de la grille 102 donne naissance à un nuage de particules de liquide extrêmement fines, leurs dimensions étant de l'ordre de 0,2 à 15 microns de diamètre. Un tel nuage, émis à la sortie du boîtier 103 par la bouche de diffusion 114, présente l'avantage de ne pas être mouillant et est donc intéressant pour des applications telles que cosmétiques ou pharmaceutiques. On notera également que l'appareil de nébulisation selon l'invention, qui évacue le nuage de particules de liquide ayant traversé la grille 102, permet à celle-ci de rester propre après utilisation et donc de pouvoir remplacer un premier réservoir contenant un premier liquide par un second réservoir contenant un second liquide, différent du premier, sans que le second liquide ne soit pollué par le premier ; ceci est avantageux notamment en cosmétique lorsque les liquides sont des parfums. Ces différents réservoirs constituent en quelque sorte des recharges pour l'appareil ; il est possible, selon une variante non représentée, d'agencer le boîtier 103 de façon à ménager un réceptacle recevant un réservoir de rechange équipé d'un feutre protégé par un capuchon et contenant le même liquide ou un liquide différent de celui du réservoir 106 ; d'une contenance de 2 à 5 millilitres de liquide, de tels réservoirs conduisent à des appareils de nébulisation de très faible encombrement, facilement transportables dans un sac à main, ou une poche d'un vêtement. Un tel appareil présente, par ailleurs, l'avantage de pouvoir être utilisé dans n'importe quelle position.When the user wishes to nebulize the liquid contained in the
Selon la variante de la figure 2, le boîtier 203 comporte deux coquilles 203A, 203B ; le moyen d'alimentation comprend une pompe 107 ayant une tige de manoeuvre 146 reçue dans un alésage 162 d'une pièce de transfert 160 ; la pièce de transfert 160 présente un autre alésage 163 recevant un feutre, les alésages 162 et 163 communiquant par un orifice 164 ; une collerette 161 de la pièce de transfert 160 permet à celle-ci de prendre appui sur la paroi 216 du logement 204 prévu dans la coquille 203A en traversant l'ouverture circulaire 205. La pompe 107 est portée par un réservoir 206 dont le fond supporte extérieurement l'alimentation 208 pour un générateur 220 logé dans la coquille 203A. Un organe de manoeuvre 210 en forme de levier souple porte un contact 211 pour la fermeture du circuit d'alimentation électrique du générateur 220 ; une grille 202 permet la nébulisation de liquide à travers la bouche de diffusion 214 ménagée à la partie inférieure de la coquille 203B.According to the variant of Figure 2, the
Les figures 3 à 6 montrent des variantes de réalisation d'organes souples associés à la pièce de transfert 160 portant la tige de manoeuvre 146 de la pompe 107 ; selon la figure 3, l'organe souple 209 est un pinceau ayant des poils dont la longueur et/ou la composition et/ou les dimensions de la section permettraient de régler le débit de liquide ; selon la figure 4, l'organe souple 309 est en coton ou en mousse, de polyuréthane ou de polyéther, à cellules ouvertes ; il peut être également un fritté d'élastomère ou de polyéthylène ; selon la figure 5, l'organe souple 409 est flocké, qu'il soit en mousse ou en fritté, plastique élastomère souple. Selon la figure 6, l'organe souple 509 est plus adapté à l'alimentation de l'organe vibrant 502 lorsque le produit est un gel ; l'organe souple 509 est constitué d'une sorte de tulipe semi-souple à franges 510 prolongeant la pièce de transfert 160 ; on aura noté que l'organe vibrant 502, en forme de disque métallique présente des perforations plus grosses que celles des figures 3 à 5 plus adaptées à un produit liquide.Figures 3 to 6 show alternative embodiments of flexible members associated with the
La figure 7 montre un exemple d'appareil dont l'organe vibrant 302 est une céramique opaque, non poreuse et sans trou ; le boîtier 303 présente une bouche de diffusion latérale 314 placée, par rapport à la figure 7, au dessus de l'organe vibrant 302 ; les particules nébulisées rebondissent sur l'organe vibrant 302 et traversent la bouche de diffusion 314. Selon cet exemple également, le moyen d'alimentation comprend une simple valve 307.FIG. 7 shows an example of an apparatus, the vibrating
La figure 8 montre un réservoir 306 équipé du moyen d'alimentation de la figure 4 ; le réservoir 306, qui peut être en verre, est protégé par une enveloppe 139 sur laquelle est claqué un capot 138 de protection du moyen d'alimentation, l'ensemble constituant une recharge 300 stockable ; selon l'exemple représenté sur cette figure, l'alimentation électrique 308 est portée par l'enveloppe 139.Figure 8 shows a
Claims (14)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9306561 | 1993-06-02 | ||
FR9306561A FR2705911B1 (en) | 1993-06-02 | 1993-06-02 | Piezoelectric nebulization device. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0628356A1 true EP0628356A1 (en) | 1994-12-14 |
EP0628356B1 EP0628356B1 (en) | 1997-07-02 |
Family
ID=9447651
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94401086A Expired - Lifetime EP0628356B1 (en) | 1993-06-02 | 1994-05-17 | Piezoelectrical nebuliser |
Country Status (6)
Country | Link |
---|---|
US (1) | US5529055A (en) |
EP (1) | EP0628356B1 (en) |
JP (1) | JP3415675B2 (en) |
DE (1) | DE69404004T2 (en) |
ES (1) | ES2103550T3 (en) |
FR (1) | FR2705911B1 (en) |
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EP2462833A4 (en) * | 2010-07-26 | 2013-06-12 | Yonwoo Co Ltd | Portable electrically-operated liquid-cosmetic mist dispenser |
Also Published As
Publication number | Publication date |
---|---|
ES2103550T3 (en) | 1997-09-16 |
EP0628356B1 (en) | 1997-07-02 |
FR2705911A1 (en) | 1994-12-09 |
JPH078863A (en) | 1995-01-13 |
DE69404004D1 (en) | 1997-08-07 |
JP3415675B2 (en) | 2003-06-09 |
US5529055A (en) | 1996-06-25 |
DE69404004T2 (en) | 1998-02-12 |
FR2705911B1 (en) | 1995-08-11 |
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