EP4015923A1 - Humidificateur sans mèche - Google Patents

Humidificateur sans mèche Download PDF

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Publication number
EP4015923A1
EP4015923A1 EP21153175.1A EP21153175A EP4015923A1 EP 4015923 A1 EP4015923 A1 EP 4015923A1 EP 21153175 A EP21153175 A EP 21153175A EP 4015923 A1 EP4015923 A1 EP 4015923A1
Authority
EP
European Patent Office
Prior art keywords
water
impactor
apertures
humidifier
outer body
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.)
Withdrawn
Application number
EP21153175.1A
Other languages
German (de)
English (en)
Inventor
Wei Su
Ruben Arnold Herman Reekers
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.)
Koninklijke Philips NV
Original Assignee
Koninklijke Philips NV
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 Koninklijke Philips NV filed Critical Koninklijke Philips NV
Priority to PCT/EP2021/085327 priority Critical patent/WO2022128828A1/fr
Priority to EP21836465.1A priority patent/EP4264140B1/fr
Priority to CN202180084980.6A priority patent/CN116635673A/zh
Priority to US18/267,740 priority patent/US20240068680A1/en
Publication of EP4015923A1 publication Critical patent/EP4015923A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F6/00—Air-humidification, e.g. cooling by humidification
    • F24F6/12—Air-humidification, e.g. cooling by humidification by forming water dispersions in the air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/22—Means for preventing condensation or evacuating condensate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F6/00—Air-humidification, e.g. cooling by humidification
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F6/00—Air-humidification, e.g. cooling by humidification
    • F24F2006/008—Air-humidifier with water reservoir

Definitions

  • the present invention relates to a humidifier comprising a tray for containing water and a nebulizing device for nebulizing water from said tray; an evaporation chamber arranged over at least a portion of said tray, said evaporation chamber terminating at an impactor; and a fan arranged to generate an air flow through said evaporation chamber towards the impactor.
  • the present invention further relates to an impactor for such a humidifier.
  • Humidifiers are used to increase the relative humidity in an enclosed space, e.g. in a domestic or business setting. This for instance may be to compensate for humidity loss caused by ventilation or heating systems such as a central heating system, and may be desirable in order to avoid health issues such as dry skin, respiratory discomfort and the like.
  • a common design of such a humidifier is based on a cold evaporation principle, in which a wick or a similar material acts as a conduit between a water bath and a fan over the water bath, such that water evaporated from the wick gets propelled by the fan into the enclosed space in which the humidifier is positioned.
  • This has the benefit that water vapor rather than larger size water droplets are expelled from the humidifier, but a drawback is that the wick can grow mould and become rather dirty over time, which is hard for a user to clean.
  • An alternative design of such a humidifier utilizes an ultrasonic transducer in contact with the water bath, in which the ultrasonic transducer generates small droplets and ejects these droplets into the air stream generated by the fan that spreads these droplets into ambient, where they can evaporate.
  • This design does not significantly suffer from mould growth or other fouling, but has the disadvantage that contaminants in the water within the water bath are ejected within the water droplets into ambient, which is unhygienic.
  • the present invention seeks to provide a humidifier that can operate using tap water whilst reducing the mineral content expelled by the humidifier.
  • the present invention further seeks to provide an impactor for use with such a humidifier.
  • a humidifier comprising a water containing arrangement for containing water and a nebulizing device for nebulizing water from said water containing arrangement; an evaporation chamber arranged over at least a portion of said water containing arrangement, said evaporation chamber terminating at an impactor; and a fan arranged to generate an air flow through said evaporation chamber towards the impactor; wherein the impactor comprises an inner body having a plurality of apertures, and an outer body having a plurality of further apertures fluidly connected to said apertures, wherein said further apertures are offset relative to said apertures such that each aperture in the inner body faces a section of a material of the outer body that is spatially separated from said aperture.
  • the design of the impactor ensures that water vapor can escape the humidifier whereas (larger) droplets are caught by the impactor and prevented from escaping the humidifier. Consequently, contamination captured in such water droplets is prevented from escaping the humidifier, thereby reducing the health risks for people exposed to the humid air released from the humidifier.
  • This is achieved due to the fact that the apertures in the inner body of the impactor speed up the air flow generated by the fan, causing a jet effect, which air jet is then diverted around the material portions of the outer body facing the apertures of the inner body owing to the fact that the further apertures are offset relative to the apertures.
  • the plurality of apertures may be arranged in a plurality of spatially separated linear arrays of apertures and the plurality of further apertures may be arranged in a plurality of linear channels extending in the same direction as said linear arrays.
  • the further apertures simply provide exits from the impactor, they may be arranged as channels, thereby simplifying manufacturing complexity of the impactor and reducing its manufacturing cost.
  • each section of said material of the outer body comprises a pair of opposing side walls extending along said linear channels towards the inner body. This further improves the effectiveness of the material sections in capturing water droplets due to an increased surface area of the material section and a reduced width of the fluid path between the apertures and the further apertures due to the side wall extending into this fluid path.
  • the impactor may have any suitable shape.
  • the impactor may have a cuboid or a cylindrical shape, which shape typically matches the shape of the housing of the humidifier.
  • the impactor may further comprise a plurality of drainage holes, each drainage hole being arranged to drain water collected by a section of the material of the outer body from the impactor. This ensures continuing functioning of the impactor, as the build-up of excessive water within the impactor due to the collection of water droplets by the material sections of the second body, which could impede the air flow from the apertures to the further apertures, is avoided.
  • the humidifier may further comprise at least one drainage channel extending from the impactor towards the water containing arrangement, wherein said drainage holes are aligned with said at least one drainage channel such that water trapped by the impactor can be reintroduced into the nebulizing device, e.g. via the water reservoir.
  • the inner body and the outer body of the impactor may extend in the same direction as said at least one drainage channel or may extend across the evaporation chamber.
  • the impactor may be positioned in a vertical orientation, in which the further apertures are offset relative to the apertures in a vertical direction or the impactor may be positioned in a substantially horizontal orientation, in which the further apertures are offset relative to the apertures in a horizontal direction.
  • the inner and outer bodies preferably are curved or angled such that water droplets captured by the impactor can flow towards the sides of the impactor in order to facilitate draining of the water droplets from the impactor through its drainage holes.
  • the inner body and the outer body preferably are made of or coated with a hydrophobic material to promote the drainage of collected water droplets from the impactor.
  • the water containing arrangement comprises a water tray in fluid communication with a water reservoir, with the nebulizing device being positioned in the water tray.
  • the water reservoir may be in fluid communication with the water tray through a valve such as for instance a float valve responsive to a water level in the water tray or a solenoid valve such that a substantially constant water level can be maintained in the water tray.
  • the nebulizing device comprises a piezoelectrically actuated mesh structure for forming water droplets from the water in said water containing arrangement and expelling the formed water droplets into the evaporation chamber, as this allows for the formation of water droplets with a well-controlled droplet size, as the droplet size is typically governed by the size of the holes in the mesh.
  • the mesh may be controlled by an actuator, which actuator may be configurable to adjust a vibration frequency, duty cycle and amplitude of the piezoelectric actuated mesh structure such that the rate at which water droplets are expelled by the mesh structure can be adjusted.
  • the nebulizing device may have a minimum water droplet expulsion rate of 1.6 L/h, which may be increased through control of the actuator.
  • the piezoelectrically actuated mesh structure is arranged over a chamber having a water inlet, said chamber comprising a sponge material arranged to transport water from the water inlet to the piezoelectrically actuated mesh structure to ensure a continuous water supply to the mesh structure.
  • the sponge material may be removable from said chamber in order to clean or replace the sponge when necessary, e.g. for hygienic reasons.
  • the chamber may further comprise a spring that compresses the sponge against the mesh structure to further ensure a continuous water supply to the mesh structure.
  • an impactor for use in the humidifier of any of the herein described embodiments, the impactor comprising an inner body having a plurality of apertures, and an outer body having a plurality of further apertures fluidly connected to said apertures, wherein said further apertures are offset relative to said apertures such that each aperture in the inner body faces a section of a material of the outer body that is spatially separated from said aperture.
  • Such an impactor may be used with any type of humidifier that generates water droplets rather than water vapor and drives these water droplets to ambient with a fan, as the impactor when placed in the air stream generated by the fan that carries the water droplets can remove the water droplets from this air stream prior to exiting the humidifier, thus leaving only evaporated water in this air stream as explained in more detail above.
  • the plurality of apertures may be arranged in a plurality of spatially separated linear arrays of apertures and the plurality of further apertures may be arranged in a plurality of linear channels extending in the same direction as said linear arrays to yield an impactor having a simple design that can be manufactured in a cost-effective manner.
  • the impactor may further comprise a plurality of drainage holes, each drainage hole being arranged to drain water collected by a section of the material of the outer body from the impactor to ensure that collected water droplets are not retained by the impactor.
  • FIG. 1 schematically depicts a humidifier 10 according to an embodiment of the present invention.
  • the humidifier 10 comprises a housing 11 in which a water containing arrangement including a tray 14 for holding water is positioned.
  • the tray 14 may be the water reservoir of the humidifier 10, although preferably the water containing arrangement further comprises a water reservoir 70, e.g. a water tank or the like, which water reservoir 70 is fluidly coupled to the tray 14 to maintain the water level in the tray 14.
  • the water reservoir 70 may be fluidly coupled to the tray 14 through a valve such as a float valve 72 arranged to float on the water level contained by the tray 14, such that upon this water level dropping, the float valve 72 opens and allows water to flow from the water reservoir 70 to the tray 14, whereas upon the water level in the tray 14 having increased to a certain point, the float valve 14 shuts and blocks the flow of water from the water reservoir 70 to the tray 14.
  • a valve such as a float valve 72 arranged to float on the water level contained by the tray 14, such that upon this water level dropping, the float valve 72 opens and allows water to flow from the water reservoir 70 to the tray 14, whereas upon the water level in the tray 14 having increased to a certain point, the float valve 14 shuts and blocks the flow of water from the water reservoir 70 to the tray 14.
  • Other types of valves e.g. a solenoid valve, may also be considered to fluidly couple the water reservoir 70 to the water tray 14.
  • a sensor may be positioned in the water reservoir 70 or the tray 14, which sensor is adapted to monitor a water level in the water reservoir 70 or the tray 14 such that a controller (not shown) responsive to the sensor can cause the generation of an alert to alert a user of the humidifier 10 that the tray 14 or the water reservoir 70 needs replenishing.
  • Such an alert may be generated in any suitable manner, and as the generation of such alerts is well-known per se, this will not be explained in further detail for the sake of brevity only.
  • the water containing arrangement may be fluidly coupled to a mains water supply, e.g. through a float valve or the like to maintain a relatively constant volume of water in the water containing arrangement. Alternatively, a user may be required to manually top up the water containing arrangement.
  • a nebulizing device 20 is positioned in the tray 14 and is adapted to nebulize water from the tray 14 into water droplets that are expelled by the nebulizing device 20 into the evaporation chamber 16 that is arranged over at least a part of the tray 14 containing the nebulizing device 20.
  • a fan 80 e.g. a centrifugal fan or axial fan, is arranged to draw air into the humidifier 10 through air inlets 82, which may be arranged in any suitable location, e.g. in the bottom of the humidifier 10 and/or in a side wall of the housing 11 of the humidifier 10.
  • the fan 80 is fluidly connected to the evaporation chamber 16, e.g.
  • the fan 80 produces an air flow at a rate of 150-250 m 3 /h although other air flow rates are equally feasible depending on the size and application domain of the humidifier 10.
  • the nebulizing device 20 may be any suitable type of nebulizing device.
  • the nebulizing device 20 comprises a piezoelectric mesh 22 driven by an actuator 21.
  • the piezoelectric mesh during use is brought into contact with a volume of water 90 from the tray 14.
  • the piezoelectric mesh 22 typically comprises a plurality of holes 24 having a defined diameter to control the size of the water droplets generated with the piezoelectric mesh 22.
  • the holes or pores 24 may be laser-drilled in a flexible metal sheet or the like, such that the holes or pores 24 have well-defined diameters to establish tight control over the size of the water droplets generated with the piezoelectric mesh 22, e.g.
  • the actuator 21 causes the piezoelectric mesh 22 to vibrate, thereby forcing a column 91 of water through the holes 24 when the piezoelectric mesh 22 is flexed towards the water volume 90 and expelling the column 91 of water in the form of droplets 92 when the piezoelectric mesh 22 is flexed away from the water column 90.
  • the volume 90 of water is typically located below the piezoelectric mesh 22 such that the water droplets 92 are expelled upwardly from the piezoelectric mesh 22 into the evaporation chamber 16.
  • the actuator 21 may be adapted to vary the vibration frequency and amplitude of the piezoelectric mesh 22, which for example may be achieved by varying the voltage or pulse width supplied by a pulse width modulated actuator 21.
  • the humidifier 10 may have a user interface (not shown) through which a user can set a water nebulization rate of the nebulizing device 20, directly or indirectly, which rate setting translates to a corresponding adjustment of the vibration frequency, amplitude or duty cycle of the piezoelectric mesh 22.
  • the water nebulization rate of the nebulizing device 20 is at least 1.6L/h to ensure sufficient humidifying of an enclosed space, e.g. a room or the like, in which the humidifier 10 is to be placed.
  • the nebulizing device 20 comprises a chamber 30 containing a sponge 33 or the like such that water from the tray 14 can be absorbed by the sponge 33 through an aperture 32 in the housing 31 of the chamber 30.
  • a spring 34 may be located at the bottom of the chamber 30 to press the sponge 33 against the piezoelectric mesh 22 such that the piezoelectric mesh 22 has access to the volume 90 of water provided by the sponge 33.
  • the sponge 33 should have a water absorption rate at least matching the water nebulization rate of the nebulizing device 20.
  • the chamber 30 may be opened such that the sponge 33 can be removed from the chamber 30, e.g.
  • the nebulizing device 20 may be secured in the tray 14 in any suitable manner.
  • the tray 14 may comprise a holder 15 or the like that engages with the nebulizing device 20 to keep it in place within the tray 14.
  • Other suitable solutions will be immediately apparent to the skilled person.
  • the design of the nebulizing device 20 is not particularly limited and any suitable nebulizing device 20 may be used for the humidifier 10.
  • nebulizing devices are well-known per se, this will not be explained in further detail for the sake of brevity only.
  • the nebulizing device 20 produces water droplets 92 that are carried by the air stream produced by the fan 80 through the evaporation chamber 16 during which the water droplets 92 may at least partially evaporate during transport through the evaporation chamber 16.
  • an impactor 40 is arranged that is adapted to capture the water droplets 92 that are still present in the air stream at that point.
  • the impactor 40 which is schematically depicted in FIG. 4 and FIG.
  • inner body 50 facing the evaporation chamber, which inner body 50 comprises a plurality of apertures 54 in the material 52 of the inner body 50, which apertures 54 are dimensioned to block water droplets above a particular from passing through the inner body 50 of the impactor 40.
  • the impactor 40 further comprises an outer body 50 arranged such that the inner body 50 is located in between the evaporation chamber 16 and the outer body 60.
  • the outer body 60 comprises a plurality of further apertures 64 in the material 62 of the outer body 60, which further apertures 64 are offset relative to the apertures 54 such that each aperture 54 faces a material section 52 of the outer body that is spatially separated from the aperture 54.
  • the inner body 50 and the outer body 60 are typically arranged such that each aperture 54 is fluidly coupled to at least one of the further apertures 64, that is, an air flow path exists between each aperture 54 and at least one of the further apertures 64, e.g. by spatially separating the inner body 50 from the outer body 60.
  • the material portion 62 is preferably spatially separated from an opposing aperture 54 by a distance in a range of 5-10 mm although other distances may also be suitable, e.g. depending on the air flow rate generated by the fan 80.
  • the material sections 62 of the outer body 60 may further comprise one or more sidewalls 63 extending along the further apertures 64 towards the inner body 50 to improve the droplet capturing capability of the outer body 60.
  • sidewalls 63 preferably are spatially separated from the inner body 50
  • one of the sidewalls 63 of each material section 62 may instead extend onto the inner body 50, e.g. to strengthen the impactor 40, in which case each aperture 54 is typically connected to one or more further apertures 64 on one side of such a material section 62 only.
  • FIG. 5 shows relevant dimensions of the impactor 40. In an example embodiment, these dimensions were chosen as per Table 1 below. Table 1. Dimensions of the impactor 40 Name Symbol Value (mm) Tolerance (mm) Gap D 4.0 0.3 Radius 0.5 ⁇ d 0 1.5 0.1 Aperture width W s 4.0 0.2 Aperture length l 0 2.0 0.2 Pitch p 1 12.0 0.2 Pitch p 2 12.0 0.2 Section thickness l g 2.0 0.2 Section width w g 9.0 0.4 Section depth d g 3.0 0.2 Sidewall thickness T 1.0 0.2
  • Table 1 The values in Table 1 are applicable for an impactor 40 used in a humidifier 10 deploying a nebulizing device 20 producing water droplets having a diameter in a range of 30-40 ⁇ m and a fan 80 producing an air flow rate of around 170-200 m 3 /h.
  • a nebulizing device 20 producing water droplets having a diameter in a range of 30-40 ⁇ m and a fan 80 producing an air flow rate of around 170-200 m 3 /h.
  • the values of these parameters are shown by way of non-limiting example only, and may readily be adjusted if at least one of the droplet size produced by the nebulizing device 20 and the air flow rate produced by the fan 80 is adjusted.
  • FIG. 6 is an exploded view of an impactor 40 according to an example embodiment, in which both the inner body 50 and the outer body 60 have a cylindrical shape with the cylinder of the outer body 60 having a larger diameter than the cylinder of the inner body 50 such that the inner body 50 fits within the outer body 60 as schematically depicted in FIG. 7 .
  • the apertures 54 are grouped in linear arrays of apertures 54 that extend between the opposing edges of the cylindrical body 50.
  • the further apertures 64 are shaped as elongate slots or channels that extend in the same direction as the linear arrays of apertures 54, i.e.
  • the impactor 40 is not limited to a cylindrical shape. Other shapes, e.g. a cuboid shape, are equally feasible, and may simply be chosen such as to match the shape of the housing 11 of the humidifier 10.
  • FIG. 8 shows a bottom view of an impactor 40 according to an embodiment, in which the impactor 40 further comprises drainage holes 65, which drainage holes 65 are arranged to drain water droplets 92 that are captured on the surface of the material sections 62 of the outer body 60 from the impactor 40.
  • the drainage holes 65 for example may be located in a partition between the inner body 50 and the outer body 60, or may be incorporated into the design of the impactor 40 in any other suitable manner.
  • the inner body 50 and the outer body 60 may be hydrophobic, e.g.
  • each of the inner body 50 and the outer body 60 may be made of a hydrophobic material such as a hydrophobic polymer, or may be coated with a hydrophobic layer such as hydrophobic polymer layer.
  • hydrophobic materials are well-known per se, this will not be explained in further detail for the sake of brevity only.
  • the humidifier 10 may further comprise one or more drainage channels 75 that extend from the impactor 40 towards the tray 14 such that water droplets 92 captured by the impactor 40, e.g. in between the inner body 50 and the outer body 60 may be returned to the tray 14.
  • the drainage holes 65 of the impactor 40 are typically aligned with the at least one drainage channel 75 such that water drained from the impactor 40 through the drainage holes 65 is fed into the at least one drainage channel 75.
  • the one or more drainage channels 75 may be hydrophobic, e.g. made from or coated with a hydrophobic material, to promote return of water drained from the impactor 40 to the tray 14.
  • the impactor 40 has a vertical orientation, that is, the inner body 50 and outer body 60 extend vertically during placement of the humidifier 10 on a horizontal surface.
  • the impactor 40 it is equally feasible for the impactor 40 to adopt a substantially horizontal orientation such that the inner body 50 and the outer body 60 extend across the evaporation chamber 16 as schematically depicted in FIG. 9 .
  • the drainage holes 65 of the impactor 40 if present may be located in a peripheral region of the inner body 50 such that the drainage holes 65 may be aligned with the drainage channels 75 as previously explained.
  • the impactor 40 may have an angled shape (as shown) or a curved shape such that the water captured between the inner body 50 and outer body 60 flows from the centre of the impactor 40 to its periphery in which the drainage holes 65 are located.
  • the nebulizer 20 is positioned in the water tray 14, which is in fluid communication with the water reservoir 70.
  • the water tray 14 is omitted from the water containing arrangement and the nebulizer 20 is directly fluidly coupled to the water reservoir 70 through conduit 72, in which case water from the reservoir 70 may be gravity fed into the nebulizer 20 or may be pumped towards the nebulizer 20 using a pump 78 or the like.
  • the one or more drainage channels 75 may be arranged to reintroduce the water that is drained from the impactor 40 as explained above directly into the reservoir 70, as shown in FIG. 10 .
  • the impactor 40 is shown as part of the humidifier 10.
  • the impactor 40 may be provided as a standalone item, e.g. as a consumable, and may be used in conjunction with existing humidifiers, e.g. ultrasonic humidifiers, such that the expulsion of water droplets by such humidifiers is prevented by the addition of the impactor 40.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Dispersion Chemistry (AREA)
  • Air Humidification (AREA)
EP21153175.1A 2020-12-16 2021-01-25 Humidificateur sans mèche Withdrawn EP4015923A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
PCT/EP2021/085327 WO2022128828A1 (fr) 2020-12-16 2021-12-10 Humidificateur sans mèche
EP21836465.1A EP4264140B1 (fr) 2020-12-16 2021-12-10 Humidificateur sans mèche
CN202180084980.6A CN116635673A (zh) 2020-12-16 2021-12-10 无芯加湿器
US18/267,740 US20240068680A1 (en) 2020-12-16 2021-12-10 Wickless humidifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2020136883 2020-12-16

Publications (1)

Publication Number Publication Date
EP4015923A1 true EP4015923A1 (fr) 2022-06-22

Family

ID=81608076

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21153175.1A Withdrawn EP4015923A1 (fr) 2020-12-16 2021-01-25 Humidificateur sans mèche

Country Status (1)

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EP (1) EP4015923A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2285680A (en) * 1994-01-12 1995-07-19 Richard Alan Griffiths Ventilators
WO2010006969A1 (fr) * 2008-07-18 2010-01-21 Mentus Holding Ag Dispositif et procédé de déshumidification d’un flux d’air
US20110034119A1 (en) * 2009-08-10 2011-02-10 Fuji Manufacturing Co., Ltd Blasting Chamber
US20110226868A1 (en) * 2007-11-16 2011-09-22 Monster Mosquito Systems Ultrasonic humidifier for repelling insects
EP2787295A2 (fr) * 2011-09-14 2014-10-08 Korea Food Research Institute Humidificateur à évaporation poussée utilisant de la nano-vapeur
CN207094797U (zh) * 2017-08-18 2018-03-13 广东美的制冷设备有限公司 空气处理模块和空调器

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2285680A (en) * 1994-01-12 1995-07-19 Richard Alan Griffiths Ventilators
US20110226868A1 (en) * 2007-11-16 2011-09-22 Monster Mosquito Systems Ultrasonic humidifier for repelling insects
WO2010006969A1 (fr) * 2008-07-18 2010-01-21 Mentus Holding Ag Dispositif et procédé de déshumidification d’un flux d’air
US20110034119A1 (en) * 2009-08-10 2011-02-10 Fuji Manufacturing Co., Ltd Blasting Chamber
EP2787295A2 (fr) * 2011-09-14 2014-10-08 Korea Food Research Institute Humidificateur à évaporation poussée utilisant de la nano-vapeur
CN207094797U (zh) * 2017-08-18 2018-03-13 广东美的制冷设备有限公司 空气处理模块和空调器

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
A.E. SAIN ET AL.: "Size and mineral composition of airborne particles generated by an ultrasonic humidifier", INDOOR AIR, vol. 28, no. 1, 2018, pages 80 - 88

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