WO2020169452A1 - Verbrauchseinheit, inhalator und herstellungsverfahren - Google Patents
Verbrauchseinheit, inhalator und herstellungsverfahren Download PDFInfo
- Publication number
- WO2020169452A1 WO2020169452A1 PCT/EP2020/053804 EP2020053804W WO2020169452A1 WO 2020169452 A1 WO2020169452 A1 WO 2020169452A1 EP 2020053804 W EP2020053804 W EP 2020053804W WO 2020169452 A1 WO2020169452 A1 WO 2020169452A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- liquid reservoir
- liquid
- evaporator device
- consumption unit
- closure part
- Prior art date
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M11/00—Sprayers or atomisers specially adapted for therapeutic purposes
- A61M11/04—Sprayers or atomisers specially adapted for therapeutic purposes operated by the vapour pressure of the liquid to be sprayed or atomised
- A61M11/041—Sprayers or atomisers specially adapted for therapeutic purposes operated by the vapour pressure of the liquid to be sprayed or atomised using heaters
- A61M11/042—Sprayers or atomisers specially adapted for therapeutic purposes operated by the vapour pressure of the liquid to be sprayed or atomised using heaters electrical
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/10—Devices using liquid inhalable precursors
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
- A24F40/42—Cartridges or containers for inhalable precursors
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
- A24F40/44—Wicks
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
- A24F40/46—Shape or structure of electric heating means
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
- A24F40/48—Fluid transfer means, e.g. pumps
- A24F40/485—Valves; Apertures
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/70—Manufacture
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F7/00—Mouthpieces for pipes; Mouthpieces for cigar or cigarette holders
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M15/00—Inhalators
- A61M15/06—Inhaling appliances shaped like cigars, cigarettes or pipes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/82—Internal energy supply devices
- A61M2205/8206—Internal energy supply devices battery-operated
- A61M2205/8212—Internal energy supply devices battery-operated with means or measures taken for minimising energy consumption
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2209/00—Ancillary equipment
- A61M2209/04—Tools for specific apparatus
- A61M2209/045—Tools for specific apparatus for filling, e.g. for filling reservoirs
Definitions
- the present invention relates to a consumption unit for an inhaler, comprising a liquid reservoir, an evaporator device arranged in the liquid reservoir and a chimney with a flow channel which extends in the liquid reservoir to a flow connection of the flow channel to the environment.
- the invention also relates to an inhaler and a method for producing a consumable unit for an inhaler.
- a disadvantage of the wick coil technology is that an insufficient supply of liquid can lead to local overheating, which can release pollutants. This is what is known as the “dry puff” and it is important to avoid it.
- the fluid-conducting connection between the heating coil and the fluid reservoir also has the disadvantage that it can easily leak. So can already an unfavorable storage of the inhaler and / or pressure fluctuations, as they can occur, for example, in an aircraft, lead to a leak.
- liquid reservoirs are closed, for example, at one end face and have an opening at another end face which is closed ver by the vaporizer device.
- the frontal closure of the liquid reservoir according to the prior art thus at least partially comprises the wick that is passed through as a liquid line from the liquid reservoir to the heating coil and is therefore potentially leaky due to the sealing problem.
- the liquid reservoir can only be filled if the evaporator device is not yet mounted in the liquid reservoir or is connected to it in a liquid-conducting manner. whereby the assembly steps in the manufacturing process cannot be freely selected in terms of an economically and technically optimized sequence.
- a generic liquid storage device is described, for example, in patent application DE 1 0 201 8 206 647.7, which was not yet disclosed at the time of application.
- the invention is based on the object of providing an improved consumer unit with a more functional structure and / or improved liquid tightness.
- the invention has recognized that it is advantageous that the consumption unit is designed so that the evaporator device is arranged during filling in the liquid reservoir. It is therefore proposed that the liquid reservoir has a filling opening for filling the liquid reservoir with liquid. Due to the possibility of filling through the filling opening, the evaporator device can be installed in the liquid reservoir during filling. This enables a liquid-tight seal and reliable holding of the evaporator device, which is beneficial to the handling and the liquid-tightness of the consumption unit, since the wick required in the prior art described above is not required.
- the filling opening is closed by means of a first closure part in order to close the filling opening reliably and in a liquid-tight manner.
- the closure of the liquid reservoir by the first closure part can be reversibly or irreversibly detachable by the consumer in a non-destructive manner.
- the filling opening is preferably formed by a free space between the evaporator device and a wall of the liquid reservoir in order to be able to provide a practicable embodiment.
- the liquid reservoir has an inner cross-sectional area perpendicular to a longitudinal direction of the flow channel which is larger than an outer cross-sectional area formed by the evaporator device perpendicular to the longitudinal direction of the flow channel, the filling opening is provided between the inner cross-sectional area of the liquid reservoir and the outer cross-sectional area of the evaporator device. Due to the different cross-sectional areas, a free space is formed between the evaporator device and the wall of the liquid reservoir, which space has the size and shape of the difference between the inner cross-sectional area of the liquid reservoir or the inner contour and the outer cross-sectional area of the evaporator device or the outer contour.
- the inner cross-sectional area of the liquid reservoir is the cross-sectional area of the liquid reservoir at the point at which the evaporator device is arranged and / or held.
- the outer cross-sectional area of the evaporator device is due to the circumference or the contour of the evaporator device in the plane of the inner cross-sectional area of the liquid reservoir.
- the evaporator device has a diameter at at least one point on its circumference which is equal to the diameter of the cross section of the liquid reservoir in order to be able to be held in the liquid reservoir.
- the evaporator device has a diameter which is smaller than the diameter of the free internal cross-sectional area of the liquid reservoir in order to form the free space or the filling opening.
- the inner cross-sectional area of the liquid reservoir is advantageously round and the outer cross-sectional area of the evaporator device is oval in order to provide an effective embodiment.
- the outer cross section of the evaporator device can be elliptical and a large semiaxis of the outer cross section of the evaporator device can be equal to or almost equal to the diameter of the inner cross sectional area of the liquid reservoir.
- the evaporator device would be supported at two opposite points on the main axis of the oval-shaped outer cross-sectional area of the evaporator device. At the same time there is an opening at two points on the minor axis of the oval-shaped outer cross-sectional area of the evaporator device opposite.
- One opening can be the filling opening, while the other opening can be used to vent the liquid reservoir during filling.
- Other oval or non-elliptical external cross-sections of the evaporator device are also conceivable.
- the openings can preferably be arranged and shaped centrally and / or symmetrically to one another. Arrangements and formations deviating therefrom are not excluded from the invention.
- the openings can be individually shaped and arranged for an optimal filling process and / or for a geometrically favorable shape of the closure part.
- the openings can in particular be arranged eccentrically, provided z. B. a filling is to be made on the side of the evaporator device.
- the filling opening is preferably formed by a bore in a wall of the liquid reservoir in order to provide a punctual and / or simply closable filling opening.
- a ventilation opening is provided, which is closed by means of a second closure part in order to simplify the filling of the consumption unit through the possibility of venting and at the same time promote the liquid-tightness of the consumption unit through the closure by the second closure part.
- the filling opening is preferably provided between the chimney and a wall of the liquid reservoir, whereby a special manufacturing process for the opening is omitted and a practicable embodiment can be realized.
- the chimney and the evaporator device and / or the chimney and the liquid reservoir are at least partially designed as a one-piece component in order to reduce the number of components due to the one-piece design and at the same time a potential leakage at a joint avoided by the one-piece design to avoid the evaporator device and / or the chimney and the liquid storage.
- the chimney and the evaporator device can be designed in one piece and for arrangement in the liquid reservoir.
- the chimney and the liquid reservoir can also be in one piece, the evaporator device being designed for arrangement in the one-piece component comprising the chimney and the liquid reservoir.
- a section is molded onto the liquid reservoir and / or the evaporator device, which at least in sections forms the chimney in order to provide a cost-effective and reliable consumption unit with an at least sectionally one-piece component.
- the first closure part preferably fixes the vaporizer device in relation to the liquid reservoir in order to be able to provide a properly assembled and liquid-tight consumption unit by means of the fixation.
- the closure part can secure the arrangement of the evaporator device in the liquid reservoir against displacement and / or rotation.
- the first closure part preferably has a connection geometry adapted to the geometry of the liquid reservoir and / or the vaporizer device in order to be able to hold the first closure part advantageously mechanically and to avoid leakage between the first closure part and the liquid reservoir and / or the vaporizer device.
- the chimney is advantageously fluidically connected to an outlet side of the evaporator device in order to be able to form an advantageous flow channel through which air, steam and / or aerosol can flow.
- the first closure part is preferably designed as a mouthpiece in order to be able to provide an embodiment with only a few components.
- the first closure part thus serves as a mouthpiece on which the consumer pulls to inhale, i.e. H. applied a negative pressure to the inhaler. This allows simple assembly of the consumption unit or the inhaler and / or can improve the possibility of cleaning the mouthpiece. Because it is designed as a mouthpiece, the first closure part can be particularly easy to handle. In this case, the mouthpiece can also only push out and / or pierce a previously existing, provisional closure part when the consumable unit is inserted and close the free space thus formed itself, as is known, for example, from ink cartridges. The consumable unit is thus first pierced by the mouthpiece and then closed again by the mouthpiece itself.
- the first closure part has a flow channel, which the flow channel of the Schlotes connects to the environment in order to provide a fluidic connection between the chimney and the environment.
- the first closure part can thus perform the function of the mouth end of the inhaler.
- the flow channel of the vent is lengthened as a result, and the gas or aerosol to be inhaled and / or the vapor to be inhaled can be further cooled to a lower temperature.
- a wick structure be provided between the liquid reservoir and the vaporizer device, and that the wick structure be aligned and / or connected to the liquid reservoir so that the liquid is fed through the wick structure vertically or at an angle other than 180 degrees the longitudinal extension of the evaporator device takes place.
- the proposed solution deflects the liquid in the transition to the evaporator device and transports it away at an angle. In this way, swirling of the liquid can also be brought about, which supports or promotes the evaporation process.
- the wick structure can thus also be arranged at a structurally more favorable location, as far as a parallel feed z. B. is not possible due to a limited length of the consumption unit.
- the invention also comprises a method for producing a consumable unit for an inhaler with a liquid reservoir, an evaporator device and a first closure part. It is proposed that the following process steps be carried out in the following sequence: inserting the evaporator device into the liquid storage device up to an end fastening position, filling the liquid storage device with liquid through a filling opening, and closing the filling Opening by means of the first closure part.
- This method uses the advantages described above, which result from the invention. In particular, after filling, the consumption unit can be closed reliably and in a liquid-tight manner.
- the vaporizer device advantageously has a smaller outer cross-sectional area or outer contour than the free inner cross-sectional area of the liquid reservoir or also inner contour perpendicular to the insertion direction of the vaporizer device, and the filling opening is formed by the free space which is due to the smaller outer contour the evaporator device between the evaporator device and the liquid reservoir results in order to specify a method in which a free space for filling is defined as a filling opening during assembly, which can be closed by the first closure part without a separate manufacturing process being required.
- FIG. 5 shows a schematic representation of an inhaler
- 6 shows a perspective cross-sectional view of a heating element with a liquid reservoir
- FIG. 7 shows a schematic cross section of an embodiment of a consumption unit according to the invention.
- FIGS. 1 to 4 each show a longitudinal section through a consumption unit 17, the common features of which are shown below.
- the consumption unit 17 comprises a liquid reservoir 18 for storing liquid 50 to be evaporated, as shown in FIGS. 5 and 6.
- the liquid reservoir 18 is cylindrical.
- the liquid storage tank 18 has a base surface 105 on one end face 106, which can have any contour.
- a jacket surface 104 extends circumferentially from the base surface 105 along a direction or axis that is preferably perpendicular to the base surface 105 and defines a longitudinal direction I.
- the base surface 105 and the lateral surface 104 determine the volume of the cylindrical liquid reservoir 18.
- the base 1 05 has a round contour.
- the liquid reservoir 18 has a non-circular cross-section or the base surface 105 is non-circular.
- the liquid reservoir 18 and / or the base surface 105 can have one or more corners.
- the consumption unit 1 7 comprises an evaporator device 1 arranged in the liquid reservoir 1 8 for evaporating in liquid 50 stored in the liquid reservoir 18.
- the evaporator device 1 will be explained in more detail with reference to FIGS. 5 and 6.
- the consumption unit 17 comprises a chimney 5 with a flow channel 8 provided inside the chimney 5 for transporting air, aerosol and / or steam, see Figures 1 to 4.
- the chimney 5 extends through the liquid reservoir 18 from the evaporator device 1 to to a flow connection of the flow channel 8 to the surroundings 80.
- the chimney 5 has a smaller cross section than the lateral surface 1104 of the liquid reservoir 18.
- the chimney 5 can thus be arranged within the liquid storage device 18.
- the chimney 5 and / or the flow channel 8 extends parallel to the lateral surface 1104 of the liquid reservoir 18.
- the chimney 5 or the flow channel 8 particularly advantageously extends centrally through the liquid accumulator 1. 8.
- the chimney 5 is preferably hollow-cylindrical and / or extends along the longitudinal axis I.
- the chimney 5 and the evaporator device 1 are designed as a one-piece component.
- the chimney 5 can be molded onto a carrier 4 of the evaporator device 1. Leakage between the evaporator device 1 and the chimney 5 is thus impossible and handling is simplified.
- the chimney 5 and the liquid reservoir 18 can be formed as a one-piece component, for example by the chimney 5 being molded onto the liquid reservoir 18.
- the chimney 5 is on one end face of the liquid reservoir 18 on both sides. For example, injected onto the base surface 105. A leak between the liquid reservoir 18 and the chimney 5 is therefore impossible.
- the chimney 5 is fluidically connected to an outlet side 64 of the evaporator device 1 in order to be able to guide aerosol and / or steam flowing through the chimney 5 along the flow channel 8 into the environment 80.
- the environment 80 is formed by the mouth of the consumer who pulls on a mouth end 32 of the inhaler 1 0 to inhale.
- Such an inhaler 1 0 can, for. B. serve to administer medicinal and / or health-promoting substances ge.
- the I nhalator 10 can also be used to enjoy aerosols with taste, as z. B. is the case with electronic cigarettes.
- FIG. 1 shows a consumption unit 1 7 according to the application DE 10 2018 206 647.7, which had not yet been published at the time of filing this invention.
- the chimney 5 extends through a piercing opening 107 provided in the base area 1105.
- the piercing opening 107 must be dimensioned very precisely in order to be able to realize the liquid tightness between the liquid reservoir 18 and the vent 5 and / or the vent 5 in the liquid reservoir 18 .
- an injection-molded seal can be provided which is inherently flexible or elastic, so that the requirements for manufacturing accuracy can be reduced. The liquid tightness is then achieved by the sealing abutment of the seal, with additional deviations in shape or minor unevenness being able to be compensated.
- the chimney 5 To fill the liquid reservoir 18, the chimney 5 must be inserted into the liquid reservoir 18 so far that the through- Joint opening 107 is closed in a liquid-tight manner, but only to the extent that an opening for filling the liquid reservoir 1 8 remains on the side opposite the end face 1 06 with the penetration opening 1 07 (not shown).
- the chimney 5 and the evaporator device 1 must be introduced into the liquid reservoir 18 so far that the evaporator device 1 can close the liquid reservoir 18 in a liquid-tight manner.
- FIG. 1 does not have a first closure part 7.
- a first closure part 7 is dispensable according to this solution, since the liquid storage device 1 8 is closed by the Verdampfervorrich device 1 itself.
- the consumption unit 1 7 has a penetration opening 1 07 in the base area 105.
- the chimney 5 extends through the liquid reservoir 18 from the evaporator device 1 to the penetration opening 1107.
- the chimney 5 is mechanically fixed in the penetration opening 107 and closes the penetration opening 107 in a liquid-tight manner.
- the liquid reservoir 18 has a filling opening 6 for filling the liquid reservoir 18 with a liquid 50.
- the filling opening 6 is formed by a free space 100 between the evaporator device 1 or the carrier 4 of the evaporator device 1 and a wall 101, as can be seen in FIG.
- the wall 101 is the jacket surface 104 of the liquid reservoir 18.
- the filling opening 6 can be closed with a first closure part 7 in order to be able to close the liquid storage unit 18 in a liquid-tight manner, see Figure 2.
- the first closure part 7 mechanically fixes the evaporator device 1 relative to the liquid storage device 18 in order to reliably hold the evaporator device 1 to care.
- the first closure part 7 has a connection geometry 82 which is adapted to the geometry of the liquid reservoir 18 and / or the evaporator device 1 and which allows the first closure part 7 to be installed easily.
- the first closure part 7 is adapted to the geometry in such a way that the first closure part 7 has an interface 108 which can be used to supply air into the vaporizer device 1.
- the interface 108 can serve to support the carrier 4 of the evaporator device 1 or the evaporator device 1.
- the first closure part 7 can have holding elements provided for connection, such as notches, clips, recesses, bulges and / or the like, wherein the liquid reservoir 18 and / or the evaporator device 1 can have holding elements belonging to the holding elements.
- the interface 1 08 is formed by a recess which enables air to be supplied.
- the recess can have a shape corresponding to the outer shape of the evaporator device 1, so that it closes the outer shape of the evaporator device 1 in a liquid-tight manner and fixes the evaporator device 1.
- the consumption unit 1 7 in the base area 1 05 has a through Joint opening 1 07 on.
- the evaporator device 1 is mechanically fixed in the penetration opening 107 and closes the penetration opening 107 in a liquid-tight manner.
- the chimney 5 extends from the evaporator device 1 through the liquid reservoir 18 to a side of the liquid reservoir 18 opposite the base area 105.
- the filling opening 6 is provided between the chimney 5 and a wall 1 01 of the liquid reservoir 1 8.
- the wall 1 01 is formed by the lateral surface 104.
- the first closure part 7 fixes the evaporator device 1 ge compared to the liquid reservoir 18 against tilting, since the first closure part 7 fixes the chimney 5. Furthermore, the first closure part 7 can fix the evaporator device 1 against a displacement along the longitudinal axis I.
- z. B. a stop, a press fit or an adhesive connection can be provided individually or in combination.
- the first closure part 7 has a connection geometry 82 which is adapted to the geometry of the liquid reservoir 18, as explained with reference to FIG.
- the first closure part 7 is designed as a mouthpiece 81.
- the consumer can thus attack the first closure part 7 directly and, by halving it, generate a negative pressure which leads to an air flow through the flow channel 8.
- the mouthpiece 81 can have a shape corresponding to a mouth end 32 of the inhaler 10 and / or form the mouth end 32 of the inhaler 10.
- the Consumable unit 17 have a provisional closure part (not shown), which is pushed out and / or through the first closure part 7 designed as a mouthpiece 81. The mouthpiece 81 then closes the opening thus created and then forms the first closure part 7.
- the first closure part 7 has a flow channel 103 which connects the flow channel 8 of the chimney 5 with the surroundings 80.
- the flow channel 103 can be formed by an opening in the first closure part 7, which also serves to fix the chimney 5, and / or through which the chimney 5 protrudes preferably almost flush.
- the first closure part 7 is a separate component from the evaporator device 1.
- the consumer can remove the first closure part 7 to fill the liquid reservoir 18 and thus release the filling opening 6 and, after filling the liquid reservoir 18 with liquid 50, close the filling opening 6 again with the first closure part 7.
- a ventilation opening 83 can be provided, which can also be closed by means of the first closure part 7.
- the consumption unit 1 7 has a through-opening 109 in a side of the liquid reservoir 18 opposite the base area 1 05.
- the evaporator device 1 is mechanically fixed in the passage opening 109 and closes the passage opening 109 in a liquid-tight manner.
- the consumption unit 1 7 has a penetration opening 107 in the base area 1 05.
- the chimney 5 is mechanically fixed in the penetration opening 107 and closes the penetration opening 107 in a liquid-tight manner.
- the chimney 5 extends through the liquid reservoir 18 from the evaporator device 1 to the base area 1 05 of the liquid reservoir 18.
- the filling opening 6 is formed by a bore 102 in a wall 110 of the liquid reservoir 18.
- the bore 102 is arranged on the base area 1 05.
- the bore 102 can, for example, be the result of piercing a cannula used to fill the liquid reservoir 18 or it can be made in some other way, for example by drilling into the base surface 105.
- the bore 102 can, however, also be provided in another wall 101 of the liquid reservoir 18, insofar as this is more favorable for the infestation or closure process.
- the first closure part 7 is not shown explicitly in FIG.
- the first closure part 7 can be a cap-like component and / or, as in FIGS. 2 and 3, a component separate from the liquid reservoir 18, which closes the filling opening 6.
- the first closure part 7 can, however, also be formed by the base surface 105 of the liquid reservoir 1 8 itself, in which the liquid reservoir 1 8 is designed at least in the area of the filling opening 6 so that the filling opening 6 is advantageous after filling without another component closes automatically.
- the filling opening 6 can be achieved by choosing an appropriately elastic material and / or with the aid of a heat treatment close after filling. Conceivable would be z. B. the use of an openable and automatically closable membrane as the first closure part 7.
- a ventilation opening 83 is provided, which is closed by means of a second closure part 84.
- the second closure part 84 is shown only schematically in FIG. In other embodiments, the second closure part 84 can be designed in the same way as the first closure part 7.
- the filling opening 6 and the vent opening 83 can be closed by a common first closure part 7.
- the filling opening 6 and / or the ventilation opening 83 can be provided on the end face of the liquid reservoir 18 opposite the base area 1 05.
- the filling opening 6 and / or the ventilation opening 83 can be provided in the carrier 4 of the evaporator device 1.
- the filling opening 6 and / or vent opening can also be provided in the jacket surface 104 or wall 1101 of the liquid reservoir 18
- FIG. 5 shows schematically an inhaler 10.
- the inhaler 10 here an inhaler in the form of an electronic cigarette product, comprises a housing 11 in which an air duct 30 between at least one air inlet opening 31 and an air outlet opening 24 at a mouth end 32 of the inhaler 10 is provided.
- the mouth end 32 of the inhaler 1 0 denotes the end at which the consumer pulls for the purpose of inhalation, thereby the inhaler 1 0 with a A negative pressure is applied and an air flow 34 is generated in the air duct 30.
- the inhaler 1 0 advantageously consists of a base part 16 and a consumption unit 1 7, which comprises the vaporizer device 1 and the liquid reservoir 18 and is in particular designed in the form of an exchangeable cartridge.
- the air sucked in through the inlet opening 31 is conducted in the air duct 30 to or through the at least one evaporator device 1.
- the vaporizer device 1 is ver connected or connectable to the liquid reservoir 1 8, in which at least one liquid 50 is stored ge.
- the vaporizer device 1 vaporizes liquid 50, which is advantageously supplied to the vaporizer device 1 from the liquid reservoir 18 by a wick or a wick structure 19 by means of capillary forces, and adds the vaporized liquid as an aerosol / vapor to an outlet side 64 into the air stream 34.
- the porous and / or capillary, liquid-conducting wick structure 19 is advantageously arranged on an inlet side 61 of the heating body 60, as shown schematically in FIG.
- the connection of the wick structure 19 shown in FIG. 5 to the liquid reservoir 18 and to the heating element 60 via the carrier 4 is only to be understood as an example.
- a liquid interface and / or a plurality of liquid lines can be provided between the liquid reservoir 18 and the wick structure 19.
- the liquid reservoir 18 can therefore also be arranged at a distance from the wick structure 19.
- the wick structure 19 makes contact with the inlet side 61 of the heating element 60 advantageously over a large area and covers all through openings 62 on the inlet side.
- the wick structure 19 is connected to the liquid reservoir 18 in a liquid-conducting manner.
- the dimensions of the liquid reservoir 18 can be larger than the wick structure 19.
- the wick structure 19 can be inserted, for example, into an opening in a housing of the liquid reservoir 18.
- a plurality of vaporizer devices 1 can also be assigned to a liquid storage unit 18.
- the wick structure 19 can generally be in one piece or in several pieces.
- the wick structure 1 9 consists of porous and / or capillary material Ma, which is due to capillary forces in a position to passively promote liquid evaporated by the heater 60 in sufficient quantities from the liquid reservoir 1 8 to the heater 60 in order to empty the passage openings 62 and prevent the problems that arise from it.
- the wick structure 19 advantageously consists of an electrically non-conductive material in order to avoid undesired heating of the liquid in the wick structure 19 due to the flow of current.
- the wick structure 19 advantageously has a low thermal conductivity.
- the wick structure 19 advantageously consists of one or more of the materials cotton, cellulose, acetate, glass fiber fabric, glass fiber ceramic, sintered ceramic, ceramic paper, aluminosilicate paper, metal foam, metal sponge, another heat-resistant, porous and / or capillary material with a suitable delivery rate, or a composite of two or more of the aforementioned materials.
- the wick structure 19 can comprise at least one ceramic fiber paper and / or a porous ceramic.
- the volume of the wick structure 19 is preferably in the range between 1 mm 3 and 1 0 mm 3 , more preferably in the range between 2 mm 3 and 8 mm 3 , even more preferably in the range between 3 mm 3 and 7 mm 3 and is, for example, 5 mm 3 .
- the wick structure 19 consists of an electrically and / or thermally conductive material, which is not excluded, an insulating layer made of an electrically and / or thermally insulating material, for example glass, ceramic or plastic, is advantageously between the wick structure 19 and the heating element 60, with openings extending through the insulating layer and corresponding to the through openings 62.
- the wick structure 19 can preferably be aligned and / or connected to the liquid storage device 18 so that the liquid is supplied through the wick structure 19 perpendicularly or at an angle other than 180 degrees to the longitudinal extension of the evaporator device 1. The liquid is thereby deflected starting from the wick structure 19 in the transition to the evaporator device and at an angle of z. B. 90 degrees or at an angle between 0 and 90 degrees transported away from the vaporizer device 1, the evaporation of the liquid and the pulling force of the consumer when inhaling causes and supports the removal of the liquid.
- An advantageous volume of the liquid reservoir 18 is in the range between 0.1 ml and 5 ml, preferably between 0.5 ml and 3 ml, more preferably between 0.7 ml and 2 ml or 1.5 ml.
- the inhaler 1 0, which in the present exemplary embodiment is formed by an electronic cigarette, also comprises an electrical energy store 14 and an electronic control device 15.
- the energy store 14 is generally arranged in the base part 16 and can in particular an electric chemical disposable battery or a rechargeable electrochemical battery, for example a lithium-ion battery.
- the consumption unit 1 7 is arranged between the energy store 14 and the mouth end 32.
- the electronic control device 15 comprises at least one digital data processing device, in particular a microprocessor and / or microcontroller, in the base part 16 (as shown in FIG. 5) and / or in the consumption unit 17.
- a sensor for example a pressure sensor or a pressure or flow switch, is advantageously arranged in the housing 11, the control device 15 being able to determine on the basis of a sensor signal output by the sensor that a consumer is at the mouth end 32 of the inhaler 10 pulls to inhale.
- the control device 1 5 controls the vaporizer device 1 to add liquid 50 from the liquid storage tank 1 8 as an aerosol / vapor into the air stream 34.
- the evaporator device 1 or the at least one evaporator 60 is arranged in a part of the consumption unit 17 facing away from the mouth end 32. Effective electrical coupling and control of the evaporator device 1 is thus possible, please include.
- the air flow 34 advantageously leads to the air outlet opening 24 through an air duct 70 running axially through the liquid reservoir 18.
- the liquid 50 to be dosed stored in the liquid reservoir 18 is, for example, a mixture of 1,2-propylene glycol, glycerine, water, at least one aroma (flavour) and / or at least one active ingredient, in particular nicotine.
- the specified components of the liquid 50 are not imperative.
- aromas and / or active ingredients, in particular nicotine, can be dispensed with.
- the consumption unit or cartridge 17 or the base part 16 advantageously comprise a non-volatile data memory for storing information or parameters relating to the consumption unit or cartridge 17.
- the data memory can be part of the electronic control device 1 5.
- the data memory advantageously contains information on the composition of the liquid stored in the liquid storage device 18, information on the process profile, in particular power / temperature control; Data for condition monitoring or system testing, for example leak testing; Data relating to copy protection and protection against forgery, an ID for unambiguous identification of the consumption unit or cartridge 17, serial number, date of manufacture and / or expiry date, and / or number of puffs (number of inhalation puffs by the consumer) or the time of use are stored.
- the data memory is advantageously electrically connected or connectable to the control device 1 5.
- inhaler 10 and / or in an external memory that can be connected to the inhaler 1 0 in a suitable and known manner, at least temporarily, for communication purposes, user-related data, in particular about smoking behavior, could also be stored and preferably also for Control and regulation of the inhaler 10 can be used.
- the evaporator device 1 comprises a block-shaped, preferably monolithic heating body 60, preferably made of an electrically conductive material, in particular a semiconductor material, preferably wise silicon, and a carrier 4. It is not necessary for the entire heating element 60 to consist of an electrically conductive material. For example, it may be sufficient that the surface of the heating element 60 is electrically conductive, for example metallic, coated or preferably suitably doped. In this case, the entire surface does not have to be coated; for example, metallic or preferably non-metallic or non-metallic laminated metallic conductor tracks can be provided on a non-conductive or semiconducting base body. It is also not absolutely necessary for the entire radiator 60 to heat; it can be sufficient, for example, if a section or a heating layer of the heating element 60 in the area of the outlet side 64 heats.
- the heating element 60 is provided with a plurality of microchannels or through openings 62, which connect an inlet side 61 of the heating element 60 to an outlet side 64 of the heating element 60 in a liquid-conducting manner.
- the inlet side 61 is connected to the liquid reservoir 18 in a liquid-conducting manner via a wick structure 19 not shown in FIG.
- the wick structure 19 serves to pass liquid from the liquid reservoir 18 to the heating element 60 by means of capillary forces.
- the mean diameter of the through openings 62 is preferably in the range between 5 pm and 200 pm, more preferably in the range between 30 pm and 150 pm, even more preferably in the range between 50 pm and 100 pm. Due to these dimensions, a capillary effect is advantageously generated, so that liquid penetrating into a passage opening 62 on the inlet side 61 rises through the passage opening 62 until the passage opening 62 is filled with liquid.
- the volume- Ratio of through openings 62 to heating element 60 which can be referred to as the porosity of heating element 60, is, for example, in the range between 10% and 50%, advantageously in the range between 15% and 40%, even more advantageously in the range between 20% and 30%, and is for example 25%.
- the edge lengths of the surfaces of the heating element 60 provided with through openings 62 are, for example, in the range between 0.5 mm and 3 mm, preferably between 0.5 mm and 1 mm.
- the dimensions of the surfaces of the heating element 60 provided with through openings 62 can be, for example: 0.95 mm ⁇ 1.75 mm or 1.9 mm ⁇ 1.75 mm or 1.9 mm ⁇ 0.75 mm.
- the edge lengths of the heater 60 can for example be in the range between 0.5 mm and 5 mm, preferably in the range between 0.75 mm and 4 mm, more preferably in the range between 1 mm and 3 mm.
- the area of the radiator 60 (chip size) can be, for example, 1 mm x 3 mm, 2 mm x 2 mm or 2 mm x 3 mm.
- the width b of the heating element 60 is preferably in the range between 1 mm and 5 mm, more preferably in the range between 2 mm and 4 mm, and is, for example, 3 mm.
- the height h of the heating element 60 is preferably in the range between 0.05 mm and 1 mm, more preferably in the range between 0.1 mm and 0.75 mm, even more preferably in the range between 0.2 mm and 0.5 mm and is, for example, 0.3 mm. Even smaller radiators 60 can be manufactured, provided and operated properly.
- the number of through openings 62 is preferably in the range between four and 1000. In this way, the heat Optimize my entry into the through openings 62 and achieve a guaranteed high evaporation capacity and a sufficiently large steam exit area.
- the through openings 62 are arranged in the form of a square, rectangular, polygonal, round, oval or other shaped array.
- the array can be designed in the form of a matrix with s columns and z rows, where s advantageously in the range between 2 and 50 and further advantageously in the range between 3 and 30 and / or z advantageously in the range between 2 and 50 and further advantageously in the range is between 3 and 30. In this way, an effective and easily producible arrangement of the through openings 62 can be realized with a guaranteed high evaporation capacity.
- the cross section of the through openings 62 can be square, rectangular, polygonal, round, oval or otherwise shaped, and / or change in sections in the longitudinal direction, in particular increase, decrease or remain constant.
- the length of one or each passage opening 62 is preferably in the range between 100 pm and 1,000 pm, more preferably in the range between 150 pm and 750 pm, even more preferably in the range between 180 pm and 500 pm and is, for example, 300 pm. In this way, optimal liquid absorption and portion formation can be achieved with a sufficiently good heat input from the heater 60 into the through openings 62.
- the distance between two through-openings 62 is preferably at least 1.3 times the clear diameter of a through-opening 62, the distance being based on the central axes of the two the through openings 62 is related.
- the distance can preferably be 1.5 to 5 times, more preferably 2 to 4 times, the clear diameter of a through opening 62. In this way, an optimal introduction of heat into the heating element 60 and a sufficiently stable arrangement and wall thickness of the through openings 62 can be achieved.
- the heating element 60 can also be referred to as a volume heater.
- the evaporator device 1 has a heating voltage source 71, preferably controllable by the control device 29, which is connected to the heating element 60 via electrodes 72 on opposite sides of the heating element 60, so that an electrical voltage Uh generated by the heating voltage source 71 leads to a current flow through the heating element 60. Because of the OhnV resistance of the electrically conductive heating element 60, the flow of current leads to heating of the heating element 60 and therefore to an evaporation of the liquid contained in the through-openings 62. Steam / aerosol 6 generated in this way escapes to the outlet side 64 from the passage openings 62 and is mixed with the air flow 34, see Figure 5. More precisely, when an air flow 34 caused by pulling the consumer is detected through the air duct 30, the control device 29 controls the heating voltage source 71 on, the liquid in the through openings 62 being spontaneously heated in the form of
- the duration of the individual evaporation steps at different temperatures and / or an evaporation of the individual components of the individual portions of the liquid can be in this way be kept short and / or clocked with a control frequency that the gradual evaporation is not perceived by a consumer and nevertheless a largely homogeneous, taste-conforming, repeatably precise aerosol formation can be guaranteed.
- a lower-boiling component of the liquid is first evaporated in a first evaporation interval at a first temperature A and then a higher-boiling component of the liquid is evaporated in a second evaporation interval at a second temperature B, which exceeds temperature A.
- An electronic or electrical connection of the heating element 60 can take place, for example, via clamping, spring or press contacts, wirebonding and / or soldering.
- a voltage curve Uh (t) adapted to the liquid mixture used is preferably stored in the data memory of the inhaler 1 0. This makes it possible to specify the voltage curve Uh (t) adapted to the liquid used, so that the heating temperature of the heating element 60, and thus also the temperature of the capillary passage openings 62, can be controlled over time via the evaporation process according to the known evaporation kinetics of the respective liquid, whereby optimal evaporation results can be achieved.
- the evaporation temperature is preferably in the range between 100 ° C and 400 ° C, more preferably between 150 ° C and 350 ° C, even more preferably between 190 ° C and 290 ° C.
- the heating element 60 can advantageously be produced from sections of a wafer using thin-film layer technology, which is a
- Surfaces of the heating body 60 can advantageously be hydrophilic.
- the outlet side 64 of the heating element 60 can be microstructured in front or have micro-grooves.
- the vaporizer device 1 is set so that an amount of liquid preferably in the range between 1 gl and 20 gl, more preferably between 2 gl and 10 gl, even more preferably between 3 gl and 5 gl, typically 4 gl per puff of the consumer, is added .
- the vaporizer device 1 can, in terms of the amount of liquid / vapor per puff, i.e. H.
- the duration of each train can be set from 1 s to 3 s.
- the voltage source 71 or the energy store 14 is switched off for the heating process.
- the voltage Uh is set in such a way that the evaporation temperature in the heating element 60 and thus in the through openings 62 is adapted to the individual evaporation behavior of the liquid mixture used. This prevents the risk of local overheating and the creation of pollutants.
- undesired differential evaporation of a liquid mixture can also be counteracted or counteracted or such can be avoided.
- a liquid mixture Otherwise, components could lose prematurely due to different boiling temperatures in the course of a sequence of evaporation processes, in particular "puffs", before the reservoir 18 of the liquid 50 is completely emptied, which in operation has undesirable effects such as the lack of constancy of the dosage for a user could pull itself, especially with a pharmaceutically effective liquid.
- the heating voltage source 71 is deactivated. Since the Liquidei properties and quantity are advantageously known exactly and the heating element 60 has a measurable temperature-dependent resistance, this point in time can be determined or controlled very precisely. The energy consumption of the evaporator device 1 can therefore be reduced compared to known devices, since the required evaporation energy can be introduced in a more metered and thus more exact manner.
- the through openings 62 are predominantly or completely emptied.
- the heating voltage 71 is then kept switched off until the through openings 62 are filled up again by means of subsequent delivery of liquid through the wick structure 19. As soon as this is the case, the next heating cycle can be started by switching on the heating voltage 71.
- the control frequency of the heating element 60 generated by the heating voltage source 71 is generally advantageously in the range from 1 Hz to 50 kHz, preferably in the range from 30 Hz to 30 kHz, even more advantageously in the range from 100 Hz to 25 kHz.
- the frequency and the duty cycle of the heating voltage Uh for the heating body 60 are advantageously adapted to the natural vibration or natural frequency of the bubble vibrations during the bubble boiling.
- the period duration 1 / f of the heating voltage can therefore advantageously be in the range between 5 ms and 50 ms, further advantageously between 10 ms and 40 ms, even more advantageously between 15 ms and 30 ms and be, for example, 20 ms.
- frequencies other than those mentioned can be optimally adapted to the natural oscillation or natural frequency of the bubble oscillations.
- the maximum heating current generated by the heating voltage Uh is preferably not more than 7 A, more preferably not more than 6.5 A, even more preferably not more than 6 A and optimally in the range between 4 A and 6 A to ensure concentrated steam while avoiding overheating.
- the delivery rate of the wick structure 19 is in turn optimally adapted to the evaporation rate of the heating element 60, so that sufficient liquid 50 can be supplied at any time and the area in front of the heating element 60 is avoided.
- the evaporator device 1 is preferably manufactured on the basis of M EMS technology, in particular from silicon, and is therefore advantageously a micro-electro-mechanical system.
- Layer structure consisting of an advantageously planar Si-based heating element 60 at least on the inlet side 61 and one or several underlying capillary structures 19 with advantageously different pore sizes.
- the wick structure 1 9 arranged directly on the inlet side 61 of the heating element 60 prevents the formation of bubbles on the inlet side 61 of the heating element 60, since gas bubbles prevent a further conveying effect and at the same time lead to a (local) overheating of the heating element 60 due to the lack of cooling by inflowing Lead liquid.
- the liquid reservoir 18 can advantageously be filled at least partially by a liquid buffer element 51.
- the liquid buffer element 51 is advantageously arranged in contact with the wick structure 19.
- the liquid buffer element 51 is set up to store liquid 50 from the liquid reservoir 18 and to transport it to the wick structure 19. This allows a reliable position or. Orientation-independent supply of the wick structure 19 with liquid 50 from the liquid reservoir 18.
- the liquid buffer element 51 like the wick structure 19, can consist of one of the described porous and / or capillary liquid-conducting materials.
- FIG. 7 shows a schematic cross section of consumption unit 1 7 according to an embodiment of the invention.
- the liquid reservoir 1 8 has a circular cross section.
- the lateral surface 104 with the wall 101 and the vent 5 with the flow channel 8 extend along the longitudinal axis perpendicular to the plane of the drawing.
- the vent 5 advantageously has a circular cross section.
- the diameter of the chimney 5 is smaller than the diameter of the liquid reservoir 1 8, which is defined in front of geous by the diameter of the base 1 05.
- the chimney 5 and the liquid reservoir 18 are advantageous arranged centrally. In other exemplary embodiments, the chimney 5 or the flow channel 8 can, however, also be centered and / or arranged outside the partial area point of the cross section of the liquid reservoir 18.
- the evaporator device 1 arranged in the liquid reservoir 18 or the carrier 4 of the evaporator device 1 have an oval external cross section.
- the outer cross section is elliptical.
- the elliptical external cross-section of the evaporator device 1 or of the carrier 4 has a large semi-axis which is equal to the radius of the liquid reservoir 18.
- the evaporator device 1 or the carrier 4 is supported on two contact points 120, 121 in the liquid reservoir 18 which are diametrically opposite on the main axis of the ellipse.
- the opposite openings 6, 83 are through the first closure part 7 closed in a liquid-tight manner (not shown in FIG. 7).
- the evaporator device 1 or the carrier 4 and / or the first closure part 7 during assembly at least one guide element, not shown, such as a nose, Recess, groove, bevel and / or a similar element suitable for guidance can be provided which, for example, prevents unintentional rotation of the components.
- the evaporator device 1 preferably has an elongated shape. If the inhaler 10 and / or the liquid reservoir 18 also have an elongated shape, the vaporizer device is preferably aligned with its longitudinal axis parallel to the longitudinal axis of the inhaler 10 or the fluid reservoir 18 and thus also to the direction of flow of the fluid to be vaporized.
- the liquid reservoir 18 can then be filled either parallel to the longitudinal axis of the evaporator device 1 or perpendicular to the longitudinal axis of the evaporator device 1, depending on the position of the filler opening 6.
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Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2021547853A JP2022520848A (ja) | 2019-02-18 | 2020-02-13 | 消費ユニット、吸入器及び製造方法 |
EP20705925.4A EP3927197A1 (de) | 2019-02-18 | 2020-02-13 | Verbrauchseinheit, inhalator und herstellungsverfahren |
KR1020217029337A KR20210126686A (ko) | 2019-02-18 | 2020-02-13 | 소비 유닛, 흡입기, 및 제조 방법 |
US17/431,971 US20220134026A1 (en) | 2019-02-18 | 2020-02-13 | Consumption unit, inhaler and manufacturing method |
CN202080015011.0A CN113395912A (zh) | 2019-02-18 | 2020-02-13 | 消耗单元、吸入器和制造方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DE102019103989.4 | 2019-02-18 | ||
DE102019103989.4A DE102019103989A1 (de) | 2019-02-18 | 2019-02-18 | Verbrauchseinheit, Inhalator und Herstellungsverfahren |
Publications (1)
Publication Number | Publication Date |
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WO2020169452A1 true WO2020169452A1 (de) | 2020-08-27 |
Family
ID=69630290
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/EP2020/053804 WO2020169452A1 (de) | 2019-02-18 | 2020-02-13 | Verbrauchseinheit, inhalator und herstellungsverfahren |
Country Status (7)
Country | Link |
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US (1) | US20220134026A1 (de) |
EP (1) | EP3927197A1 (de) |
JP (1) | JP2022520848A (de) |
KR (1) | KR20210126686A (de) |
CN (1) | CN113395912A (de) |
DE (1) | DE102019103989A1 (de) |
WO (1) | WO2020169452A1 (de) |
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WO2023123249A1 (zh) * | 2021-12-30 | 2023-07-06 | 深圳麦克韦尔科技有限公司 | 雾化器及电子雾化装置 |
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2020
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Also Published As
Publication number | Publication date |
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JP2022520848A (ja) | 2022-04-01 |
US20220134026A1 (en) | 2022-05-05 |
EP3927197A1 (de) | 2021-12-29 |
DE102019103989A1 (de) | 2020-08-20 |
CN113395912A (zh) | 2021-09-14 |
KR20210126686A (ko) | 2021-10-20 |
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