EP4268973B1 - Système de buse de pulvérisation - Google Patents

Système de buse de pulvérisation

Info

Publication number
EP4268973B1
EP4268973B1 EP23196735.7A EP23196735A EP4268973B1 EP 4268973 B1 EP4268973 B1 EP 4268973B1 EP 23196735 A EP23196735 A EP 23196735A EP 4268973 B1 EP4268973 B1 EP 4268973B1
Authority
EP
European Patent Office
Prior art keywords
nozzle
atomizer
cap
channel
connection
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.)
Active
Application number
EP23196735.7A
Other languages
German (de)
English (en)
Other versions
EP4268973A3 (fr
EP4268973A2 (fr
Inventor
Sebastian Mangold
Manuel FIESEL
Jan Barthelmes
Leon LUCK
Björn FREISINGER
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.)
J Wagner GmbH
Ioniq Skincare GmbH and Co KG
Original Assignee
J Wagner GmbH
Ioniq Skincare GmbH and Co KG
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 J Wagner GmbH, Ioniq Skincare GmbH and Co KG filed Critical J Wagner GmbH
Publication of EP4268973A2 publication Critical patent/EP4268973A2/fr
Publication of EP4268973A3 publication Critical patent/EP4268973A3/fr
Application granted granted Critical
Publication of EP4268973B1 publication Critical patent/EP4268973B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
    • B05B1/10—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape in the form of a fine jet, e.g. for use in wind-screen washers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/60—Arrangements for mounting, supporting or holding spraying apparatus
    • B05B15/65—Mounting arrangements for fluid connection of the spraying apparatus or its outlets to flow conduits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
    • B05B5/035—Discharge apparatus, e.g. electrostatic spray guns characterised by gasless spraying, e.g. electrostatically assisted airless spraying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
    • B05B5/043—Discharge apparatus, e.g. electrostatic spray guns using induction-charging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/16—Arrangements for supplying liquids or other fluent material
    • B05B5/1691—Apparatus to be carried on or by a person or with a container fixed to the discharge device

Definitions

  • the electrohydrodynamic atomization of fluids is gaining increasing importance in the field of coating processes. For example, it has emerged from the PCT/EP2018/060117 , which are also known as DE 10 2018 109 452 A1
  • a device which uses electrohydrodynamic atomization to apply, for example, care products such as sunscreen to a person's body.
  • a spray mechanism with an adjustable spray angle comprising a water inlet base, a connecting plate, several flexible spray tubes, sliding blocks, adjustment assemblies, a cover plate, and the like.
  • the adjustment assemblies drive the sliding blocks, which are threaded to the adjustment assemblies, into an axial reciprocating motion by the rotation of a drive spindle rod.
  • each rotor nozzle comprises a rotor chamber formed in a nozzle housing, which has an inlet opening at one axial end and an outlet opening for the liquid at the other end, and a rotor arranged inclined in the rotor chamber relative to its longitudinal axis, which is driven by a rotary motion and supported on the inner wall of the rotor chamber, and which has a nozzle area supported in a cup bearing at its end facing the outlet opening and an inlet opening at the opposite end.
  • the DE 10 2014 200 741 A1 The invention relates to a shower head with a spray-forming fluid outlet structure comprising a plurality of spray outlet units, at least two of which are designed as multi-channel spray outlet units, each with at least one first outlet channel and at least one second outlet channel separated from the first. Furthermore, the shower head has a fluid guide configured to direct a fluid supplied to the shower head selectively to either the first outlet channels or the second outlet channels. According to the invention, the minimum distance between the outlet channels of each multi-channel spray outlet unit is smaller than the minimum distance between the outlet channels of any two multi-channel spray outlet units, and/or in at least one multi-channel spray outlet unit, a second outlet channel or a group of several second outlet channels is arranged to at least partially surround a first outlet channel.
  • the atomizer comprises a housing, an electrical energy source, an activation agent, control electronics, a high-voltage source, a liquid tank, a conveying device and atomizing nozzles, wherein the conveying device is arranged between the liquid tank and the atomizing nozzles, wherein the conveying device is connected to the liquid tank by a first line and wherein the conveying device is connected to the atomizing nozzles by a second line, such that the conveying device draws liquid from the liquid tank and conveys it to the atomizing nozzles.
  • An electrostatic spraying device which is configured and arranged such that a liquid composition is electrostatically charged and dispensed from a reservoir to a dispersion point, the device comprising: a reservoir configured to contain the reservoir of liquid composition, a nozzle for dispersing the liquid composition, the nozzle being arranged at the dispersion point, a channel arranged between the reservoir and the nozzle, the channel enabling electrostatic charging of the liquid composition as it moves within the channel, a power source to supply an electrical charge, a high-voltage power supply device, the high-voltage power supply device being electrically connected to the power source, a high-voltage electrode, the high-voltage electrode being electrically connected to the high-voltage power supply device, a section of the high-voltage electrode being arranged between the reservoir and the nozzle, the high-voltage electrode electrostatically charging the liquid composition within the channel at a charging point, and a nozzle channel extending between the reservoir and the nozzle.
  • the object of the invention is therefore to improve the function of an electrohydrodynamic atomizer and, in particular, to simplify cleaning.
  • the invention relates to an atomizing nozzle system with an electrohydrodynamic atomizer, wherein several nozzles are included in a nozzle cap and, to form a nozzle, at least one nozzle opening, at least one nozzle channel and at least one nozzle socket are included, wherein the nozzle cap is arranged on at least one carrier, wherein the carrier includes a nozzle connector for each nozzle socket, wherein the nozzle cap is detachably attached to the carrier and wherein the nozzle cap is formed in one piece.
  • the nozzle cap can be removed from the carrier by detaching it, and detached from the electrohydrodynamic atomizer unit , e.g., with a cleaning tool. They can be cleaned with water or other solvents. Replacement after wear is also simplified and can be done by the user. Furthermore, alternative nozzle caps can be used, whose geometries and other properties are adapted to different fluids to be atomized.
  • the nozzle cap is made at least partially from a flexible material, in particular from a flexible electrical insulator, preferably a silicone.
  • a flexible material e.g. , silicone
  • an insulator has surprisingly proven advantageous for electrohydrodynamic atomization.
  • the atomization effect experienced by the high-voltage charged liquid is improved by guiding it through an electrically insulating nozzle channel, leading to greater process reliability in electrohydrodynamic atomization applications, for example, when applying care products such as sunscreen.
  • the carrier is made of a rigid material, preferably plastic, e.g. PC, ABS, PE, PET or PP or the like.
  • a rigid support allows for precise and reliable attachment of the flexible nozzle cap, for example via rigid elements for alignment and fastening.
  • Such rigid elements can be formed by projections or structures, e.g. collars or mushroom heads, but also by tongue and groove elements, into which corresponding counter-structures of the nozzle cap then engage, in particular snapping elastically.
  • nozzle cap is held on the carrier by elastic tensioning of locking elements or tensioning of a flexible material, preferably by positive locking.
  • a flexible, rubber-like nozzle cap preferably made of silicone, allows it to be elastically clamped onto the carrier and thus removed without tools. Even in the case of an inflexible or semi-flexible nozzle cap, a simple, tool-free connection can be achieved, for example, using snap-fit elements.
  • the nozzle cap comprises a base structure, in particular a base plate or a base frame, on which a nozzle structure for forming the atomizing nozzles is arranged, wherein the base structure is made of a more rigid material compared to the nozzle structure, which is preferably made of silicone, in particular PC, ABS, PE, PET or PP or the like, and preferably comprises at least one connecting element, in particular a snap-fit element, for forming a preferably detachable connection with the carrier.
  • a flexible, bendable nozzle geometry, formed on a more rigid base structure allows for the production of a nozzle geometry made of, for example, silicone, without having to forgo mechanical locking elements for a detachable connection to a carrier. Furthermore, this improves the feel during disassembly and assembly of the nozzle cap, as a certain degree of dimensional stability is achieved.
  • the base structure can be designed as a type of plate containing openings for the nozzle connections and/or nozzle bushings, or as a frame structure that provides support and stabilization only at the necessary points.
  • the nozzle cap comprises at least three nozzle openings, each with an associated nozzle channel and an associated nozzle bushing, wherein the nozzle openings are maximally spaced apart from one another in a nozzle area, in particular arranged consecutively along a zigzag line.
  • the nozzle openings are spaced as far apart as possible on the available area of the nozzle cap, i.e., that they maintain the greatest possible distance between them.
  • a zigzag arrangement on a surface is preferable, as this maximizes the distance between the nozzle openings.
  • a flank of the projecting nozzle is preferably designed as a continuously curved curve and in particular the flank of the nozzle is asymmetrical on one flank side with respect to an opposite flank side of the nozzle, in particular having a curvature at least 1.5 times greater.
  • the nozzle opening which is supported by a nozzle body, projects out of the plane of the nozzle cap to define the nozzle geometry, in particular to accommodate a nozzle channel inside the nozzle body.
  • the plane of the nozzle cap is to be understood as the essentially flat surface on which the nozzle geometry is arranged.
  • the raised edge regions shown in the later embodiment are disregarded in this context.
  • flanks or side walls of the nozzle body follow a continuously curved path. Due to their placement at the greatest possible distance, less installation space is available on the flank side of the nozzle body closest to the edge of the nozzle cap than on the opposite side. Therefore, the curvature can taper more gently on the side furthest from the edge, as will be illustrated in the following embodiment. This results in smoother transitions, which are advantageous during cleaning.
  • nozzle cap is manufactured using injection molding.
  • nozzle cap is manufactured using a multi-component injection molding process or is otherwise joined together, e.g. by gluing or vulcanizing processes.
  • This manufacturing process allows for cost-effective and efficient production of the component(s). Furthermore, the two aforementioned manufacturing methods prevent accidental separation of the nozzle cap components, thus providing the user with greater reliability.
  • the nozzle cap with an elastic section at the nozzle connection surrounds a connecting flange and forms a seal on it via elastic deformation.
  • the nozzle cap Due to its detachability, the nozzle cap must form a sealing connection to the nozzle port of the carrier. This is preferably achieved by an elastic section, for example made of silicone, sealingly surrounding the connection flange of the nozzle port, whereby the tension of the elastic section must withstand the delivery pressure of the fluid to be atomized during operation of the electrohydrodynamic atomizer.
  • an elastic section for example made of silicone
  • a preferred embodiment in this respect provides that the nozzle connection has a cylindrical connection flange, in particular with a circumferential sealing ring, and the nozzle bushing forms a corresponding cylindrical receptacle to provide an interlocking sealing positive connection.
  • the sealing ring can also be designed as a bead directly formed on the connecting flange, especially a bead structure produced directly in injection molding, in order to avoid additional components or work steps.
  • a corresponding cylindrical connection flange can be manufactured easily and reliably during the production process and offers the user a simple connection of the fluid system with a reliable sealing effect during the assembly and disassembly of the detachably connected nozzle cap.
  • the shaped sealing bead which is firmly connected to the connection flange, makes it possible for the flexible soft material, especially silicone, of the nozzle cap to form a sufficient clamping force with the sealing bead on the connection flange in addition to the sealing, so that the nozzle cap is held on the carrier by clamping it to the sealing bead.
  • nozzle connection has a conical connection flange, and the nozzle bushing forms a corresponding conical receptacle to provide an interlocking sealing positive connection.
  • connection flange allows for a preferential centering effect during assembly, whereby the opposing conical flanks of the connection flange and nozzle bushing form a sealing contact.
  • the nozzle channel is shaped as a conical section or as a spherical cap and in particular forms an end channel towards the nozzle opening, wherein the end channel is preferably designed as a cylindrical or conical pipe section.
  • nozzle channel Such a design of the nozzle channel is the subject of the application. DE 10 2018 133 406.0 , to whose disclosure reference is hereby made.
  • a corresponding design of the nozzle channel offers an advantageous formation of a free jet of the fluid to be atomized before the effect of electrohydrodynamic atomization due to the applied high voltage begins.
  • the nozzle opening of an atomizing nozzle is between 0.1 mm and 0.3 mm, preferably 0.2 mm, and that the length of the nozzle channel is between 4 mm and 6 mm, preferably 5.5 mm.
  • a suitable embodiment of the atomizing nozzle system provides that an electrical contact element, in particular a high-voltage contact, is formed in the nozzle connection, wherein the contact projects into a fluid channel, preferably the fluid channel is led through the contact, and in particular the distance between the electrical contact element and the nozzle opening is between 5 mm and 20 mm, preferably between 11 mm and 15 mm, in particular 14 mm.
  • a high-voltage contact as an electrical contact element that projects into the fluid channel.
  • the fluid channel includes a channel through the nozzle bushing.
  • the electrical contact element is designed such that it is arranged in the fluid flow path, and in particular, that the fluid flows through it via an opening in the electrical contact element. This ensures optimal application of the high voltage and the associated charging of the fluid, resulting in a reliable spraying process.
  • Electrohydrodynamic atomization is based on the instability of electrically chargeable fluids, particularly sufficiently electrically conductive fluids under high voltage, in a strong, inhomogeneous electric field.
  • the fluid is subjected to a high voltage. This causes the fluid to deform into a cone, from the apex of which a thin jet is emitted, immediately disintegrating into a spray of finely dispersed droplets. Under certain conditions, in Taylor cone mode, the droplets exhibit a narrow size distribution.
  • the atomizing effect can be improved by the interaction with a forced hydraulic supply of a fluid flow, e.g. a pump.
  • FIG. 1 shows Figure 1 an electrohydrodynamic atomizer 1 which comprises an atomizer part 2 and a fluid tank 3.
  • a nozzle system 4 is arranged in the upper front area of the atomizer part 2.
  • the nozzle system comprises a first nozzle 10, a second nozzle 11, and a third nozzle 12.
  • the nozzles 10, 11, 12 are in this case designed as nozzle bodies 14, 15, 16 projecting from a plane 13 of the nozzle system 4, wherein the nozzle bodies are asymmetrically shaped with curved lateral flanks in their transverse direction 17 to the extension of the nozzle system 4.
  • Each of the nozzles 10, 11, 12 has a nozzle opening 21, 22, 23 at its tip.
  • Nozzle openings 21 and 22 are spaced as far apart as possible by a distance 24.
  • Nozzles 22 and 23 are spaced as far apart as possible by a distance 25.
  • the arrangement of the nozzles 21, 22, 23 follows a zigzag pattern in their spacing, such that the best possible spacing is achieved on level 13 of the nozzle system 4.
  • the atomizer part 2 has a receptacle 30 for a cover (not shown) in the vicinity of the nozzle system 4, which covers and protects the nozzle system 4 in the transport state.
  • the atomizer part 2 comprises at least one operating button 31, which can be used to activate the electrohydrodynamic atomizer 1 and to contact the user to provide the necessary current flow during atomization.
  • an operating button 31 which can be used to activate the electrohydrodynamic atomizer 1 and to contact the user to provide the necessary current flow during atomization.
  • two further contacts, in particular operating buttons, are provided, not shown here as they are located on the rear side, so that the electrohydrodynamic atomizer 1 can be easily operated with either the left or the right hand.
  • an electrically conductive, preferably metallic or metallized, circumferential contact area is provided on the atomizer part 2 in the area between the atomizer part 2 and the fluid tank 3, to serve as a contact point for the user to provide the necessary current flow during atomization.
  • a contact ring 32 is provided on the atomizer part 2 in the area between the atomizer part 2 and the fluid tank 3, to serve as a contact point for the user to provide the necessary current flow during atomization.
  • Other arrangements on the device are also conceivable, provided they ensure good and reliable contact.
  • Figure 2 shows a schematic cross-section through a first embodiment of an atomizer nozzle system with nozzle cap and Carrier and a variant of the nozzle connection in a cutaway view.
  • a nozzle cap 40 is shown here separated from a carrier 41.
  • the nozzle cap 40 comprises a nozzle structure 42, which is made of silicone.
  • the nozzle structure 42 forms the nozzle bodies 43, which protrude from the plane 44 of the nozzle cap.
  • the nozzle cap 40 comprises a base plate 45, which is made of a material more rigid than the silicone of the nozzle structure 42, in particular a more rigid plastic. In this way, the nozzle cap 40 is provided as a rigid assembly that can be easily attached to and detached from the carrier 41.
  • locking elements 50 are provided which clamp a nozzle cap 40 placed on the carrier 41.
  • the atomizing nozzle 60 of the nozzle cap 40 comprises a nozzle opening 61 and a nozzle channel 62 which opens into a nozzle bushing 63.
  • the counterpart to the nozzle bushing 63 is formed by the nozzle connection 64 on the carrier 41.
  • the nozzle connection 64 and the nozzle bushing 63 are conically shaped so that when the nozzle cap 40 is placed on the carrier 41, the two conical flanks abut each other and thus form a seal.
  • a fluid channel 65 is provided in the nozzle connection 64, at the lower end of which an electrical contact 66 is provided for introducing the High voltage is applied to a fluid.
  • the electrical contact is provided with a bore in the area of the fluid channel 65, so that the fluid flows through the electrical contact 66 while being transported to the nozzle opening 61.
  • FIG. 3a shows a perspective schematic representation of a second embodiment of an atomizing nozzle system with nozzle cap 100 and carrier 101.
  • the atomizing nozzles have curved flanks on their nozzle bodies.
  • Nozzle 103 serves as an example.
  • the flank 105 shown here from the front, has a continuously curved profile, exhibiting a considerably greater curvature compared to the flank 106 shown from the rear.
  • the ramp-like structure of the flanks of the nozzle bodies 110, 111, and 112a allows for a surface with raised nozzle bodies that is easy to clean, with the spaced nozzles 102, 103, and 104 being spaced as far apart as possible.
  • the support 101 arranged below the nozzle cap 100 comprises a connection flange 112b, 113, 114 for each atomizing nozzle 102, 103, 104.
  • the connection flange is cylindrical in this case. formed and includes a sealing ring at its upper edge, which in this case is designed as a directly molded sealing bead.
  • Figure 3b shows a correspondingly enlarged representation of a nozzle cap 200 mounted on a carrier 201.
  • the nozzle cap 200 again comprises a nozzle structure 202 made of silicone, which is arranged on a base structure 203 made of more rigid plastic.
  • the connecting flange 204 of the support 201 is cylindrical in this case.
  • a fluid channel 205 runs through the center of the connecting flange 204.
  • An electrical contact element 206 is arranged at the lower end of the fluid channel 205, which has a central bore 207 through which the fluid to be charged for electrohydrodynamic atomization flows and is thereby charged with an applied high voltage.
  • a sealing ring 210 is provided at the upper end of the connection flange 204.
  • the nozzle body 211 is equipped with a cylindrical nozzle bushing 212 into which the connection flange 204 extends, forming a seal with its sealing ring 210 against the flexible silicone material of the nozzle body 211.
  • the nozzle body 211 contains the nozzle channel 213, which opens into an end channel 214 at its upper end.
  • the nozzle opening 215 is formed by the upper end of the end channel 214.
  • the nozzle channel 213 is conical, specifically in the form of a conical cap section.
  • a preferred dimension of one embodiment is given by a nozzle opening diameter 220 of 0.2 mm.
  • the nozzle channel 213 is preferably designed with a length 221 of approximately 5.5 mm.
  • the total length 222 of the fluid channel 205 together with the nozzle channel 213 inside the nozzle is preferably up to approximately 14 mm, whereby a free jet of atomized fluid (not shown) is generated in front of the nozzle opening with a free jet length of 10 mm to 15 mm before the atomization effect begins.

Landscapes

  • Electrostatic Spraying Apparatus (AREA)
  • Nozzles (AREA)

Claims (15)

  1. Système de buses d'atomisation avec un atomiseur électrohydrodynamique, un capuchon à buses (40) comprenant plusieurs buses (10, 11, 12) et, pour former une buse (10, 11, 12), au moins une ouverture (21, 22, 23, 61, 215) de buse, au moins un canal (62) de buse ainsi qu'au moins une douille (63) de buse, le capuchon à buses (40, 100, 200) étant disposé sur au moins un support (41, 101, 201), et le support (41, 101, 201) comprenant pour chaque douille de buse un raccord (64) de buse, le capuchon à buses (40, 100, 200) étant disposé avec une fixation amovible sur le support (41, 64, 101, 201), le capuchon à buses (40, 100, 200) étant formé d'un seul tenant.
  2. Système de buses d'atomisation selon la revendication 1, caractérisé en ce que le capuchon à buses (40, 100, 200) est fabriqué au moins proportionnellement à partir d'un matériau flexible, en particulier à partir d'un isolant électrique flexible, de manière préférée d'un silicone.
  3. Système de buses d'atomisation selon la revendication 1 ou 2, caractérisé en ce que le support (41, 101, 201) est fabriqué à partir d'un matériau rigide, de manière préférée d'une matière plastique, en particulier de PC, ABS, PE, PET ou PP ou similaire.
  4. Système de buses d'atomisation selon la revendication 1, 2 ou 3, caractérisé en ce que le capuchon à buses (40, 100, 200) est maintenu sur le support (41, 101, 201) par assemblage par serrage élastique d'éléments d'enclenchement (50) ou par assemblage par serrage d'un matériau flexible, de manière préférée est maintenu par complémentarité de formes.
  5. Système de buses d'atomisation selon l'une des revendications précédentes, caractérisé en ce que le capuchon à buses (40, 100, 200) comprend une structure de base (203), en particulier une plaque de base (45) ou un cadre de base, sur laquelle, une structure de buse est disposée, la structure de base étant fabriquée par rapport à la structure de buse (42, 202), qui est fabriquée de manière préférée à partir de silicone, d'un matériau rigide, en particulier d'une matière plastique, de manière préférée de PC, ABS, PE, PET ou PP ou similaire.
  6. Système de buses d'atomisation selon l'une des revendications précédentes, caractérisé en ce que le capuchon à buses (40, 100, 200) comprend au moins trois ouvertures (21, 22, 23, 61, 215) avec chacune un canal (62, 213) de buse associé et chacune une douille (63, 212) de buse associée, les ouvertures de buse (61) étant espacées les unes des autres au maximum dans une zone de buse, en particulier étant disposées en se suivant les unes les autres le long d'une ligne en zigzag.
  7. Système de buses d'atomisation selon l'une des revendications, caractérisé en ce que l'ouverture (21, 22, 23, 61, 215) de buse de la buse dépasse du plan (13) du capuchon à buses, un flanc (110, 111, 112a) de la buse qui dépasse étant réalisé de manière préférée comme une courbe incurvée en permanence et en particulier le flanc (110, 111, 112a) de la buse sur un côté de buse étant asymétrique par rapport à un côté de flanc opposé de la buse, en particulier présente une incurvation supérieure d'au moins un facteur de 1,5.
  8. Système de buses d'atomisation selon l'une des revendications précédentes, caractérisé en ce que le capuchon à buses (40, 100, 200) est fabriqué dans le procédé de moulage par injection.
  9. Système de buses d'atomisation selon l'une des revendications précédentes, caractérisé en ce que le capuchon à buses (40, 100, 200) est fabriqué dans le procédé de moulage par injection à composants multiples.
  10. Système de buses d'atomisation selon l'une des revendications précédentes, caractérisé en ce que le capuchon à buses (40, 100, 200) entoure par une section élastique sur le raccord (64) de buse une bride de raccordement (112b, 113, 114, 204) et forme sur celle-ci un joint d'étanchéité par déformation élastique.
  11. Système de buses d'atomisation selon l'une des revendications précédentes, caractérisé en ce que le raccord (64) de buse comporte une bride de raccordement (112b, 113, 114, 204) cylindrique, en particulier avec une bague d'étanchéité (210) périphérique, de manière préférée un bourrelet d'étanchéité formé sur la bride de raccordement (112b, 113, 114, 204) et la douille (63, 212) de buse forme un logement cylindrique correspondant pour fournir déjà une complémentarité de forme étanche par imbrication.
  12. Système de buses d'atomisation selon l'une des revendications précédentes 1 à 10, caractérisé en ce que le raccord (64) de buse comporte une bride de raccordement (112b, 113, 114, 204) conique, et la douille de buse forme un logement conique correspondant pour fournir déjà une complémentarité de forme étanche par imbrication.
  13. Système de buses d'atomisation selon l'une des revendications précédentes, caractérisé en ce que le canal (62, 213) de buse est formé en étant moulé comme une section de cône ou un capuchon sphérique et forme en particulier un canal d'extrémité en direction de l'ouverture (21, 22, 23, 61, 215), le canal d'extrémité (214) étant formé de manière préférée comme une section tubulaire cylindrique ou conique.
  14. Système de buses d'atomisation selon l'une des revendications précédentes, caractérisé en ce que l'ouverture (21, 22, 23, 61, 215) de buse d'une buse d'atomiseur est comprise entre 0,1 mm à 0,3 mm, de manière préférée est égale à 0,2 mm, et la longueur du canal de buse est comprise entre 4 mm à 6 mm, de manière préférée est égale à 5,5 mm.
  15. Système de buses d'atomisation selon l'une des revendications précédentes, caractérisé en ce qu'un élément de contact (206) électrique, en particulier un contact à haute tension, est formé dans le raccord (64) de buse, le contact dépassant dans un canal de fluide (65, 205), de manière préférée le canal de fluide (65, 205) étant guidé à travers le contact (206), et en particulier la distance entre l'élément de contact électrique et l'ouverture de buse étant comprise entre 5 mm et 20 mm, de manière préférée entre 11 mm et 15 mm, en particulier est égale à 14 mm.
EP23196735.7A 2018-12-21 2019-12-19 Système de buse de pulvérisation Active EP4268973B1 (fr)

Applications Claiming Priority (3)

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DE102018133440 2018-12-21
PCT/EP2019/086282 WO2020127713A1 (fr) 2018-12-21 2019-12-19 Système de pulvérisateur pourvu d'un champ de buses en silicone
EP19831700.0A EP3897999B1 (fr) 2018-12-21 2019-12-19 Système de pulvérisateur pourvu d'un champ de buses en silicone

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EP4268973B1 true EP4268973B1 (fr) 2025-12-17

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EP23196735.7A Active EP4268973B1 (fr) 2018-12-21 2019-12-19 Système de buse de pulvérisation

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US (1) US12017235B2 (fr)
EP (2) EP3897999B1 (fr)
JP (1) JP7457024B2 (fr)
KR (1) KR102595109B1 (fr)
CN (1) CN113453804B (fr)
DE (1) DE102019135150A1 (fr)
WO (1) WO2020127713A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3898001A1 (fr) * 2018-12-21 2021-10-27 J. Wagner GmbH Contrôle de fonctionnement pour un pulvérisateur électrohydrodynamique
DE102021109651A1 (de) 2021-04-16 2022-10-20 J. Wagner Gmbh Sprühvorrichtung zum Versprühen einer kosmetischen Flüssigkeit, Verfahren zum Betrieb einer Sprühvorrichtung, Düse für eine Sprühvorrichtung und Düsenfeld für eine Sprühvorrichtung
GB202106111D0 (en) * 2021-04-29 2021-06-16 7Rdd Ltd Improvements to spray apparatus

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US4819878A (en) * 1987-07-14 1989-04-11 The Babcock & Wilcox Company Dual fluid atomizer
DE19830801C2 (de) * 1998-07-09 2001-05-10 Anton Jaeger Vorrichtung zum Ausstoßen von Flüssigkeit
JP3462398B2 (ja) * 1998-07-22 2003-11-05 荏原 裕行 シャワー装置
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KR20210107777A (ko) 2021-09-01
KR102595109B1 (ko) 2023-10-30
WO2020127713A1 (fr) 2020-06-25
JP2022514927A (ja) 2022-02-16
US20210379608A1 (en) 2021-12-09
US12017235B2 (en) 2024-06-25
EP4268973A3 (fr) 2024-01-24
EP4268973A2 (fr) 2023-11-01
JP7457024B2 (ja) 2024-03-27
DE102019135150A1 (de) 2020-06-25
EP3897999A1 (fr) 2021-10-27
CN113453804A (zh) 2021-09-28
EP3897999B1 (fr) 2023-09-13
CN113453804B (zh) 2023-10-24

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