EP3426070B1 - Elektronisches zigarettenprodukt und kartusche für ein elektronisches zigarettenprodukt - Google Patents

Elektronisches zigarettenprodukt und kartusche für ein elektronisches zigarettenprodukt Download PDF

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Publication number
EP3426070B1
EP3426070B1 EP17708765.7A EP17708765A EP3426070B1 EP 3426070 B1 EP3426070 B1 EP 3426070B1 EP 17708765 A EP17708765 A EP 17708765A EP 3426070 B1 EP3426070 B1 EP 3426070B1
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EP
European Patent Office
Prior art keywords
liquid
cigarette product
electronic cigarette
atomizer
product according
Prior art date
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Active
Application number
EP17708765.7A
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German (de)
English (en)
French (fr)
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EP3426070A1 (de
Inventor
Jürgen Dick
Marc Kessler
Rene Schmidt
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Koerber Technologies GmbH
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Koerber Technologies GmbH
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Classifications

    • 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
    • A24F40/30—Devices using two or more structurally separated inhalable precursors, e.g. using two liquid precursors in two cartridges
    • 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
    • A24F40/46—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
    • A24F40/50—Control or monitoring
    • 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
    • A24F40/50—Control or monitoring
    • A24F40/57—Temperature control
    • 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
    • A24F40/60—Devices with integrated user interfaces
    • 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
    • A24F40/65—Devices with integrated communication means, e.g. wireless communication means

Definitions

  • the present invention relates to an electronic cigarette product according to the preamble of claim 1.
  • wick coil principle The majority of electronic cigarette products currently on the market are based on the so-called wick coil principle.
  • a wick for example made of fiberglass, is partially wrapped with a heating coil and is in contact with a liquid reservoir. When the heating coil is heated, the liquid in the wick evaporates in the area of the heating coil. Due to the capillary effect, the evaporated liquid is pumped out of the liquid storage.
  • Such an electronic cigarette is exemplary in the US 2016/0021930 A1 described.
  • US 2016/007653 A1 discloses an electronic cigarette product according to the preamble of claim 1.
  • US 2005/016550 A1 discloses an electronic cigarette product with an addition device based on a bubble jet process or a piezoelectric process.
  • US 20141060554 A1 discloses an electronic cigarette product with a microheater containing a patterned electrically conductive layer.
  • EP 0 845 220 A1 discloses an electronic cigarette product having an outlet head having a piezoelectric element and a ceramic heater.
  • the object of the invention is to provide a safe, high quality and certifiable electronic cigarette product and a cartridge in which the described disadvantages of the potential risk of overheating and the associated pollutant emissions are avoided.
  • the execution of at least essential parts of the addition device as a microsystem unit enables the complete decoupling of the liquid delivery or metering from its heating for the purpose of evaporation.
  • Liquid is conveyed or injected into a chamber inside the addition device using microdosing using a free jet atomizer based on the inkjet or bubble jet principle.
  • a precisely temperature-controlled heating element is provided at a distance and functionally separate from it as part of an evaporator.
  • the temperature of the heating element can be set or regulated completely independently of the volume flow of the liquid. With a fixed temperature, the amount of liquid delivered and thus the amount of vapor/aerosol can be adjusted as desired.
  • precise temperature control/regulation of the evaporator heating element overheating and the resulting pollutants, such as acrylic compounds, can be completely avoided.
  • microsystem technology used according to the invention enables the micrometer-precise and precisely reproducible production of different electromechanical functional groups, including sensors and actuators, on a silicon substrate in a uniform manufacturing process. In this way, according to the invention, the product quality required for mass production and certifiability can be ensured.
  • the atomizer and also the evaporator of the addition device are designed as a microsystem unit.
  • the liquid tank and the addition device are arranged in a replaceable cartridge.
  • the liquid tank is emptied, the entire cigarette product does not have to be used be disposed of, but only the empty cartridge needs to be replaced with a filled one.
  • the addition device as part of the cartridge has the considerable advantage that a defined interface is created, which enables a leak-free replacement of the cartridge without complex sealing measures, since the microstructure of the microsystem technical unit can be sealed more easily or is even self-sealing due to the surface tension.
  • the cartridge can advantageously comprise a data or information memory for storing information and/or parameters relating to the cartridge.
  • the ratio of the largest extent of the microsystem technology unit to the average diameter of the essentially rod-shaped housing in the area of the addition device is less than 0.5 and more preferably less than 0.4 and even more preferably less than 0.3 and particularly advantageously less than 0 ,2.
  • a compact design of the microsystem technology unit increases flexibility with regard to possible arrangements of the microsystem technology unit in the cigarette product or in the cartridge.
  • the atomizer is a free-jet atomizer with a thermal or piezo actuator and a downstream nozzle.
  • the atomizer can have an electrical preheating element and a preheating chamber for preheating the liquid entering the adding device from the liquid tank. It can also be beneficial be when a metallic part of the atomizer that contacts the liquid is connected to a direct electrical voltage in order to cause ionization of the atomized liquid.
  • the heating output of the evaporator heating element can be controlled and/or regulated to a defined target temperature.
  • the evaporator can comprise a piezo element coupled to the electrical heating element. The heating element vibrating due to the piezo excitation can lead to an improvement in the evaporation effect and/or the achievement of self-cleaning effects, ie prevention of burning or adhesions.
  • different liquids from a plurality of liquid tanks can be atomized with a plurality of atomizers, with the atomizers preferably being assigned a corresponding plurality of evaporators and heating elements.
  • an active ingredient can be specifically dosed into a base liquid.
  • the heating output of the heating elements can be controlled and/or regulated individually to defined target temperatures, since this enables an adaptation and optimal selection of the respective heating temperature for each liquid.
  • the liquid tank is particularly advantageous as a flexible bag. This ensures using simple means that the liquid tank can be completely emptied in any position and without leaks.
  • At least one liquid storage device is provided in the form of a liquid-on-chip device.
  • This technology which is also based on microsystem technology, makes it possible to store small amounts of liquid directly on a chip, comparable to a drop that is enclosed in a kind of blister and can be released through targeted activation.
  • a free-jet atomizer could be provided for atomizing a base liquid and the actual addition of flavors and/or active ingredients could take place via a liquid-on-chip device.
  • a plurality of atomizers can be arranged in the addition device, particularly in matrix or array form.
  • the plurality of atomizers can have a corresponding plurality of evaporators, for example also in matrix form.
  • a plurality of addition devices or microsystem technology units can be arranged in the cigarette product.
  • the electronic cigarette product 10 comprises a substantially rod-shaped or cylindrical housing 11, which in cross section can be round, oval, elliptical, square, rectangular, polygonal or otherwise shaped.
  • An air duct 30 is provided in the housing 11 between at least one air inlet opening 31 and the mouth end 32 of the cigarette product 10.
  • the mouth end 32 of the cigarette product 10 refers to the end at which the consumer draws for inhalation and thereby applies a negative pressure to the cigarette product 10 and creates an air flow 34 in the air duct 30.
  • At least one air inlet opening 31 can be arranged on the shell side of the housing 11. Additionally or alternatively, at least one air inlet opening 31A may be arranged at the distal end 33 of the cigarette product 10.
  • the distant end 33 of the cigarette product 10 denotes the end of the cigarette product 10 opposite the mouth end 32.
  • the air supply through the air inlet opening(s) 31, 31A can be adjustable, in particular by changing the flow resistance, for example by means of adjustable air slots or a rotatable ring with a regulating opening. Furthermore, a (fine) filter can be provided on the air inlet opening(s) 31, 31A to clean the sucked in air.
  • An ionization device for ionizing the sucked in air is also possible, which can result in better droplet absorption and better biological compatibility. Finally, a device for preheating or pretempering the sucked in air is conceivable.
  • the cigarette product 10 is preferably designed so that the draw resistance at the mouth end 32 is preferably in the range between 50 and 130 mm of water column, more preferably between 80 and 120 mm of water column, even more preferably between 90 and 110 mm of water column and optimally between 95 and 105 mm water column.
  • Draw resistance refers to the pressure required to draw air through the full length of the cigarette product 10 at a rate of 17.5 ml/s at 22°C and 101 kPa (760 Torr), in accordance with ISO 6565:2011 is measured.
  • the cigarette product 10 comprises a first (axial) section 13, advantageously at the remote end 33 of the cigarette product 10, in which an electronic energy supply unit 12 with an electrical energy storage 14 and an electrical/electronic unit 15 is arranged.
  • the energy storage 14 advantageously extends in the axial direction of the cigarette product 10.
  • the electrical/electronic unit 15 is advantageously arranged laterally next to the energy storage 14.
  • the energy storage 14 can be a disposable electrochemical battery, a rechargeable electrochemical battery, e.g. a Li-ion battery, or a fuel cell.
  • the cigarette product 10 further comprises a second (axial) section 16, advantageously at the mouth end 32 of the cigarette product 10, in which a consumption unit 17 with a liquid tank 18, an electrical unit 19 and an addition device 20 is arranged.
  • the liquid tank 18 advantageously extends in the axial direction of the cigarette product 10.
  • a uniform electrical/electronic unit can also be provided, which can be arranged either in the energy supply unit 12 or in the consumption unit 17.
  • the entirety of the electrical/electronic units of the cigarette product 10 is referred to below as the control arrangement 29.
  • a sensor for example a pressure sensor or a pressure switch, is advantageously arranged in the housing 11, the control arrangement being able to determine an operating state of the cigarette product 10 on the basis of a sensor signal output by the sensor, in which a consumer takes a puff on the mouth end 32 of the cigarette product 10, to inhale.
  • the control arrangement 29 controls the addition device 20 in order to add liquid 50 from the liquid tank 18 as an addition 40 in the form of small drops of liquid as a mist/aerosol and/or in gaseous form as vapor into the air stream 34.
  • the liquid to be dosed stored in the liquid tank 18 is, for example, a mixture of 1,2-propylene glycol, glycerin and water, to which one or more flavors and / or active ingredients, such as nicotine, can be mixed.
  • the section 16 containing the liquid tank 18 or the consumption unit 17 is advantageously designed as a cartridge 21 that can be replaced by the consumer, i.e. as a disposable part.
  • the rest of the cigarette product 10, in particular the section 13 containing the energy storage 14, is advantageously designed as a base part 56 that can be reused by the consumer, i.e. as a reusable part.
  • the cartridge 21 can be connected to the base part 56 by the consumer and can be detached from the base part 56. A separating surface or interface 57 is thus formed between the cartridge 21 and the reusable base part 56.
  • the cartridge housing 58 may form part of the housing 11 of the cigarette product 10.
  • the consumption unit 17 is designed as a cartridge 21, which is inserted into the reusable base part 56 of the cigarette product 10 by the consumer can be used and removed from it.
  • the cartridge housing 58 is a separate housing from the housing 11 of the cigarette product 10.
  • the cartridge 21 includes at least the liquid tank 18 and the addition device 20.
  • the cartridge 21 can, as in Fig. 2 shown, which include the electrical/electronic unit 19.
  • the electrical/electronic unit 19 is wholly or partially an integral part of the base part 56.
  • the cartridge 21 can also be used in other products, for example in an electronic pipe.
  • the energy storage 14 is usually not part of the cartridge 21, but rather part of the reusable base part 56.
  • the liquid tank 18 is preferably closed in a liquid-tight manner and retains this property under all ambient conditions that occur, i.e. over a wide temperature and ambient pressure range.
  • the entry of ambient air into the liquid tank 18 is thus avoided, so that only liquid is removed from the liquid tank 18.
  • the liquid tank 18 should be able to be emptied as completely as possible, regardless of the position.
  • the liquid tank 18 is preferably filled in a certified manner and is designed to be non-refillable in order to reliably prevent misuse and manipulation.
  • the liquid tank 18 can have an advantageous viscosity-dependent capillary structure to implement the aforementioned requirements and/or can be set up to generate micro-fluidics.
  • the liquid tank 18 is a flexible bag. This ensures that the liquid tank 18 can be completely emptied in any position and without leakage using simple means.
  • the liquid tank 18 may comprise a container, a holder or a structural component into which the above-mentioned capillary structure and/or the bag is inserted.
  • a typical tank volume of the liquid tank 18 is in the range between 0.5 ml and 2 ml.
  • the cigarette product 10 can advantageously include a fill level control for the liquid tank 18, which can be linked to the number of puffs, for example.
  • the liquid tank 18 is preferably made of an inert and/or food-compatible or pharmaceutical-grade material, in particular a plastic, whereby the material can be optically transparent or opaque.
  • the liquid tank 18 can be mechanically coupled to the addition device 20 or decoupled from it.
  • the addition device 20 advantageously serves as a cover or leakage protection for the liquid tank 18.
  • a decoupling in particular a liquid line, ie a capillary connection, is provided between the liquid tank 18 and the addition device 20. If the liquid tank 18 is designed to be separable from the addition device 20, this must be possible without leaks, that is, the liquid tank 18 has a closing mechanism which, as a result of the separation of the liquid tank 18 automatically closes a discharge opening of the liquid tank 18 in a liquid-tight manner by the addition device 20, for example by means of a spring-loaded ball, a check valve or the like.
  • the ratio of the largest extent a of the microsystem technology unit 45 (see Fig. 3 ) to the average diameter D of the essentially rod-shaped housing 11 in the area of the addition device 20 (see Fig. 12 ) is advantageously smaller than 0.5.
  • the addition device 20 comprises an atomizer component 22 with an atomizer 48 and an evaporator component 23 with an evaporator 49, which are arranged in relation to a chamber 24 inside the addition device 20.
  • the atomizer 48 is a free-jet atomizer based on the inkjet or bubble jet principle, with an actuator 25 arranged in a liquid channel 27 and a nozzle 26 arranged subsequently, which opens into the chamber 24.
  • the actuator 25, which is electrically controlled with a suitable control frequency, typically in the kHz range, can be a piezoelectric element or a heating element.
  • the control arrangement 29 controls the actuator 25, whereby the fluid channel 27 located in the liquid channel 27 is triggered by sudden heating (in the case of a heating element) or by vibration (in the case of a piezo element). Liquid in the form of small droplets is thrown from the nozzle 26 into the chamber 24.
  • the atomizer 48 in the design as a free-jet atomizer according to the inkjet or bubble jet principle, simultaneously serves to convey the liquid 50 from the liquid tank 18 through the liquid channel 27 and to meter the liquid into the chamber 24.
  • the atomizer 48 can therefore also be used as a Free jet dosers are called.
  • micropumps and valves, a conveyance with integrated liquid (pre-)temperature control, which will be illustrated further below, and/or pressure difference-driven, either from the air flow 30 itself or by means of, can also be used to convey and/or meter the liquid Pre-pressure on or in the liquid tank 18.
  • the atomizer/doser 48 is set so that an advantageous amount of liquid in the range between 1 ⁇ l to 10 ⁇ l, typically 4 ⁇ l per puff from the consumer, is metered in.
  • the atomizer/doser 48 is designed so that a (dosing) reserve is available.
  • the atomizer/doser 48 can be adjustable in terms of the amount of liquid per puff.
  • liquid 50 from the liquid tank 18 to the atomizer 48 can be used, for example in the form of at least one pump, for example a membrane pump, a peristaltic pump, a positive displacement pump, for example with a spindle drive, a gear pump.
  • the negative pressure could be in the from Consumer-generated air flow 30 can be used to convey the liquid 50, for example via a connecting pipe.
  • the control arrangement 29 can advantageously be set up to set different consumption profiles.
  • the steam dosage rate can advantageously be adjustable for the consumer in certain ranges. For example, three steam power levels with a lot, medium and little steam could be selectable, corresponding to, for example, 400, 500 and 600 puffs per 2 ml cartridge 21. This can be achieved, for example, via the frequency of the control of the atomizer 48.
  • the dimensioning of the heating element 36 In such embodiments, it is designed for the highest selectable steam output.
  • a uniform storage/atomizer unit in the form of a so-called liquid-on-chip system can be used. These are a large number of individual liquid reservoirs that are arranged integrated on a circuit board and can be individually electrically controlled or "fired” in order to release the liquid stored therein. Typical blister sizes are in the range between 150 ⁇ l and 5 ml.
  • a liquid-on-chip system can also be provided for dosing active ingredient in parallel to a liquid tank for adding base liquid.
  • metallic parts of the atomizer 22 that contact the liquid for example the heating element 25 and/or the nozzle 26, can be connected to a direct electrical voltage in order to cause ionization of the atomized liquid.
  • This allows for finer drops, a better spatial distribution of the atomized liquid and/or an attractive force of the drops in the direction of a heating element 36 of the evaporator 23 (see below) can be advantageously achieved. This can be particularly advantageous for pharmaceutical applications.
  • the evaporator 49 has a heating element 36, which is controlled by the control arrangement 29 when an air flow 34 caused by the consumer is detected through the air duct 30 in order to be heated by means of electricity from the energy source and to evaporate the droplets emerging from the nozzle 26 , i.e. to put it into the gaseous or vaporous state.
  • the heating element 36 is preferably arranged opposite the nozzle 26.
  • the electrical heating element 36 can in particular be designed as a heating plate with a flat or structured surface.
  • the size and surface quality or structure of the heating element 36 is preferably adapted to the viscosity and surface tension or wettability of the liquid. A polar coating is also possible.
  • the heating element 36 is controlled by the control arrangement 29, in particular the electrical/electronic unit 19, so that it has a substantially constant evaporation temperature, preferably in the range between 100 ° C and 400 ° C. This can advantageously be done by regulating the heating output.
  • a power reserve is provided for the heating element 36.
  • the evaporation power is preferably in the range between 1 W to 20 W, more preferably in the range between 2 W and 10 W.
  • the heating elements 36, 36A are preferably controlled separately in order to ensure an optimal evaporation temperature for each component.
  • a staggered evaporation of different liquids 50, 50A is also conceivable, with the droplets being shot alternately or alternately from the different nozzles onto the heating elements 36, 36A. This can lead to more even evaporation.
  • the atomizer/evaporator combination can advantageously be set in such a way that predominantly liquid particles in the range between 0.25 ⁇ m to 10 ⁇ m are created, for which optimal active ingredient absorption or lung penetration is ensured.
  • the chamber 24 serves in particular to evaporate the droplets emerging from the nozzle 26, the chamber 24 can also be referred to as an evaporator chamber.
  • the chamber 24 is advantageously elongated in cross section, such as in Fig. 3 shown, wherein the nozzle 26 and the heating element 36 are advantageously arranged on opposite longitudinal sides.
  • An outlet bore 37 is provided, preferably perpendicularly or laterally to the exit direction of the liquid jet from the nozzle 26, through which the vapor generated by the evaporator 49 exits the evaporator chamber 24, where it is accompanied by the air stream 34, which preferably runs perpendicular to the bore 37 is recorded.
  • the heating element 36 can be equipped with a piezo element.
  • the heating element 36 vibrating due to the piezo excitation can lead to an improvement the evaporation effect and/or achieving self-cleaning effects, ie avoiding burning or adhesions.
  • temperature control or preheating of the steam to a desired temperature can be provided.
  • a desired temperature for example body temperature (37 ° C)
  • a desired temperature for example body temperature (37 ° C)
  • swirling of the steam can be provided, for example in a mixing chamber with ambient air, or through a suitable design of a mouthpiece of the cigarette product 10, for example through holes at 45 °, helical structures, Laval nozzle and the like.
  • the actuator 25 of the atomizer 22 and the heating element 36 of the evaporator 23 are separately electrically connected to the control arrangement 29 and are controlled separately from one another, an advantageous functional separation between the delivery/dosing/atomization on the one hand and the evaporation on the other hand is realized.
  • the liquid channel 27 is preferably sealed by means of a seal 28 arranged between the addition device 20 and the liquid tank 18 and surrounding the mouth of the liquid channel 27 to the outside.
  • a sensor system for measuring and/or controlling the temperature of the heating plate 36 is preferably provided. This can for example via a temperature sensor, a resistance-variable conductive coating of the heating element 36 or measurement of the energy loss after the heating plate 36 has cooled down due to impinging liquid. Furthermore, a sensor system is preferably provided for measuring and/or controlling the temperature of the supply air, ie the air flow 34, before the liquid is added by the addition device 20. A temperature measurement and/or control of the vapor or aerosol 40 is also advantageously provided, in particular in the chamber 24 and/or in the air stream 34 after the liquid has been added by the addition device 20. The use of a pH sensor is also conceivable.
  • the air sucked in through the inlet opening 31 is guided in the air duct 30, possibly via the interface or separating surface 57, to the addition device 20.
  • a filter in particular a fine filter, for filtering out dust particles from the sucked-in air can be arranged in the air duct 30.
  • a pressure or flow switch 44 for activating the atomizer 48 and the evaporator 49 as a result of the generation of an air stream 34 by the consumer is further arranged in the air duct 30 in such a way that the air stream 34 flows past it.
  • the flow switch 44 can be arranged in the evaporator chamber 24 in the flow variant, see for example Fig. 5 and Fig. 6 .
  • the flow switch 44 can be arranged at a suitable location in the air duct 30 outside the evaporator chamber 24.
  • the flow switch 44 can advantageously be integrated into the electrical/electronic unit 19, in which case the air duct 30 is advantageously arranged such that the air flow 34 flows past the electrical/electronic unit 19.
  • the flow switch 44 can be, for example, a vacuum switch, for example based on the principle of the condenser microphone.
  • the cigarette product can be switched on and off by means of a mechanical switch, a capacitive switch that is sensitive to the consumer touching the housing 11 or the mouth end 32, or a touch screen.
  • the vapor or aerosol 40 is either supplied to the air flow 34 by flowing past the outlet opening 42 of the evaporator chamber 24 on the outside, see Fig. 1, Fig. 3 , Fig. 4 , Fig. 7, Fig. 8, Fig. 9 , Fig. 11 and Fig. 12 .
  • the air stream 34 flows through the addition device 20 and the vapor or aerosol 40 is carried along and absorbed by the air stream 30 in the evaporator chamber 24, see Fig. 5, Fig. 6 and Fig. 10 .
  • the vapor or aerosol 40 is added perpendicular to the air flow 34 flowing eccentrically and in the axial direction of the cigarette product 10.
  • Fig. 1 the embodiment according to Fig.
  • the air stream 34 flows through the adding device 20 perpendicular to the axial direction of the cigarette product 10.
  • the vapor or aerosol 40 is added axially centrally in the opposite direction to the axial main flow direction of the air flow 34 flowing through the cigarette product 10.
  • the vapor or aerosol 40 is added axially centrally in the main axial flow direction of the air flow 34 flowing through the cigarette product 10.
  • the adding device 20 can be arranged far from the mouth end 32 of the cigarette device 10, in particular in the area of the interface 57 between the cartridge 21 and the base part 56, as in the exemplary embodiments Fig. 1 , Fig. 10 and Fig. 11 .
  • the addition device 20 can alternatively be close to the mouth end 32
  • Cigarette device 10 may be arranged as in the exemplary embodiment Fig. 12 .
  • An arrangement at the side of the liquid tank 18, particularly in the area of the electrical/electronic unit 19, is also possible.
  • a sensor system for measuring and/or controlling the liquid volume flow or different liquids or liquid components (see below). This can be done, for example, by counting the number of droplets and/or evaluating the actuation frequency of the actuator 25, or by evaluating the heating power or the temperature change of the heating element 36.
  • a sensor system for measuring the volume flow of the air flow 34 can also be advantageously provided either before or after the addition of liquid through the addition device 20. This can be done, for example, by evaluating the activation time of a pressure switch, taking the flow geometry into account.
  • the cigarette product 10 preferably contains one or more pressure sensors for measuring and/or controlling the pressure or vapor pressure in the evaporator chamber 24, the pressure in the air duct 30, for example for activating or switching the adding device 20, and/or for leak testing between the adding device 20 and liquid tank 18.
  • Both the atomizer component 22 and the evaporator component 23 are made using microsystem technology on a silicon substrate executed.
  • Microsystem technical units have electrical and/or mechanical structures with dimensions in the micrometer or sub-millimeter range, which are incorporated into a substrate in a uniform processing process.
  • the electrical actuator 25 and any sensors provided in the atomizer component 22 are incorporated into the substrate 38 in a uniform processing process using microsystem technology.
  • the heating element 36 and possibly a piezo element for vibrating the heating element 36 and sensors provided in the evaporator component 23 are incorporated into the substrate 39 in a uniform processing process using microsystem technology.
  • the entire addition device 20 is therefore designed as a uniform microsystem technology unit 45.
  • the heating element 36 is arranged flat and parallel to the surface of the substrate 39, so to speak “lying down”.
  • the embodiment according to Fig. 4 differs from that according to Fig. 3 in that here the heating element 36 consists of a plurality of heating rods 41 projecting vertically from the corresponding surface of the substrate 39, i.e. a quasi "standing" three-dimensional heating element structure.
  • the air flow 34 generated by the consumer flows through the adding device 20 and thereby takes the steam or aerosol generated in the evaporator chamber 24 with it.
  • Air inlet opening 42 and an air outlet opening 43 are provided in the adding device 20.
  • the pressure switch 44 for example a capacitor switch, for activating the atomizer 48 and the evaporator 49 as a result of the generation of an air flow 34 by the consumer, is advantageously integrated into the microsystem technology unit 45, for example into the evaporator component 23 (see Fig. 5 ), alternatively in the atomizer component 22 (see Fig. 6 ).
  • a preheater with an electrical preheating element 46 and a preheating chamber 47 can advantageously be arranged in the liquid channel 27, as exemplified in the embodiment according to FIGS Fig. 5 and Fig. 6 is shown.
  • the atomizer component 22 is designed as a microsystem technology unit 45, while the substrate 39 of the evaporator component 23 is made of a non-conductive material, in particular glass, ceramic or a plastic.
  • the evaporator component 23 is advantageously connected or bonded to the atomizer component 22.
  • the liquid tank 18, which is preferably made of a plastic, for example PDMS (polydimethylsiloxane), is advantageously also firmly and liquid-tightly connected or bonded to the atomizer component 22 or the microsystem technology unit 45, for example glued or welded.
  • the embodiments according to Fig. 7 and Fig. 8 relate to an advantageous variant of the invention, in which different liquids 50, 50A, for example the liquid 50 and a separate liquid active ingredient 50A, from a plurality of liquid tanks 18, 18A with a plurality of atomizers 48, 48A, here free jet atomizers based on the inkjet or bubble jet principle with actuators 25, 25A, and evaporated with a plurality of corresponding evaporators 49, 49A or heating elements 36, 36A.
  • the atomizer component 22 and the evaporator component 23 are in the case of Fig. 7 designed as a uniform microsystem technical unit or assembly 45. In the case of those not covered by the invention Fig. 8
  • the structure is comparable to that from Fig. 6 , that is, only the atomizer component 22 is designed as a microsystem technology unit, while the substrate 39 of the evaporator component 23 is made of a non-conductive material, in particular glass, ceramic or a plastic.
  • An alternative variant for supplying active ingredient is to mix it into the liquid 50 as a homogeneous mixture.
  • the embodiment according to Fig. 9 can be used to supply the same liquid 50 or different liquids 50, 50A.
  • the atomizers 48, 48A and the evaporators 49, 49A are arranged on the same microsystem technology unit 45, the evaporator chamber 24 is closed opposite the microsystem technology unit 45 by a cover 51 made of a suitable material.
  • the heating elements 36, 36A are arranged on opposite sides of an intermediate wall 52 which projects vertically into the evaporator chamber 24 and thus form a "standing" heating element structure.
  • droplets with an average size in the range between 10 ⁇ m and 50 ⁇ m, preferably between 20 ⁇ m and 40 ⁇ m, typically around 30 ⁇ m, can be produced.
  • the dosing frequency is typically in the kHz range.
  • a large number of atomizers 48 for example in matrix form, can advantageously be arranged in the addition device 20.
  • a corresponding number of evaporators 49 for example also in matrix form, can be assigned to the large number of atomizers 48.
  • the addition device 20 can therefore also be referred to as an array, or in microsystem design as an MST array.
  • the number of atomizers 48 is preferably between two and twenty, preferably between three and ten.
  • a plurality of addition devices 20 or microsystem technology units 45 can be arranged in the cigarette product.
  • the consumption unit 17 or the cartridge 21 advantageously comprises a non-volatile information memory 53 (see Fig. 1 ) for storing information or parameters relating to the consumption unit 17 or the cartridge 21, for example in the form of EEPROM, RFID or other suitable form.
  • the information storage 53 can be part of the electrical/electronic unit 19 or be designed separately from it.
  • the ingredient ie the composition of the liquid stored in the liquid tank 18
  • Information about the process profile in particular or system testing, for example leak testing
  • Data relating to copy protection and anti-counterfeit protection in particular comprising an ID for unique information about the consumption unit 17 or cartridge 21; serial number, date of manufacture and/or expiration date; and/or number of puffs (number of inhalation puffs by the consumer) or the time of use.
  • An electrical connection 54 is advantageously provided between the consumption unit 17 or the cartridge 21 and the energy supply unit 12 via a corresponding electrical interface 55, which enables the cartridge 21 to be replaced.
  • the electrical connection 54 serves, on the one hand, for data exchange between the consumption unit 17 or the cartridge 21 and the energy supply unit 12, and on the other hand for the power supply of the consumption unit 17 or the cartridge 21 through the electrical energy storage 14.
  • the data exchange can be carried out via a direct electrical coupling, for example by means of Spring contact elements, a radio connection or an optical connection.
  • All electrical contacts of the cartridge 21 for the energy supply, possibly also for data transmission, are advantageously routed to the outside in the form of a uniform electrical interface 55, for example in the form of a contact array, with a secure electrical connection to the base part 56 advantageously being established by means of spring contact elements becomes.
  • the power supply can also be inductive, for example.
  • the mechanical connection between the cartridge 21 and the base part 56 can be formed in a suitable manner, for example by means of a thread, plug connection, bayonet lock, magnetic or in some other way. In the manner described, a standard cartridge 21 can be flexibly connected to an individually designed base part 56.
  • the energy supply unit 12 or the base part 56 advantageously comprises a communication interface 59 (see Fig. 1 ) for external communication with an external communication device, for example a cell phone.
  • the communication interface 59 preferably has a radio module, for example designed for Near Field Communication (NFC), Bluetooth, WiFi or ANT+. Additionally or alternatively, an external plug connection, for example a USB socket for a USB connection, is possible.
  • the communication interface 59 can be part of the electrical/electronic unit 15 or formed separately from it.
  • the energy supply unit 12 or the base part 56 can advantageously have a charging interface 60 for charging the energy storage 14.
  • the charging interface 60 can, for example, enable induction charging. Alternatively, it can be a plug connection or another direct electrical connection, for example a USB connection.
  • the energy storage can also be designed as a replacement battery or replacement battery, whereby a discharged energy storage 14 can be removed from the cigarette product 10 by the consumer and a charged energy storage 14 can be used again.
  • Embodiments with a disposable energy storage device 14, in particular a battery, without a charging interface 60 are also conceivable, with the base part being disposed of after the energy storage device 14 has been discharged.
  • the electrical/electronic unit 15 of the base part 56 is preferably set up to carry out diagnostic functions, in particular via software, for example to detect malfunctions, for example checking the nozzles 26, 37 and/or checking the evaporator 49, including plausibility of the evaporator performance; and/or checking the charge status of the energy storage device 14.
  • the electrical/electronic unit 15 can further have a fuse, for example a fuse for short-circuit protection, and/or a misuse protection device, for example a fingerprint sensor.
  • the electrical/electronic unit 15 of the base part 56 is advantageously set up to carry out statistical evaluations, in particular using software. These can, for example, relate to consumer behavior, for example the number of puffs over time, liquid consumption in general and/or per cartridge, nicotine or active ingredient intake, liquid composition and the like. Further aspects of a statistical evaluation can concern market developments and trends.
  • An API interface for application programming can also be provided, which, for example, enables all sensor information to be displayed in any combination.
  • the electrical/electronic unit 15 of the base part 56 is advantageously set up for the visualization of data or information on a display device, in particular using software.
  • a display device in particular using software.
  • This can be an internal display device, in particular a display, screen, touchscreen or LED display in the housing 11 of the base part 56.
  • the visualization can take place on an external display device, for example a mobile phone.
  • the visualized information can be the illustration the statistical evaluation, a temporal trend and/or information about a current consumption profile, relating, for example, to the system status (charge status of the energy storage 14), steam volume, cartridge content, etc.
  • Fig. 13 Diagrams are shown to explain possible temperature and heating output control or regulation.
  • the draft resistance of the air flow 34 is plotted over time at the top, the volume flow of the liquid 50 in the middle and the temperature of the heating element 36 at the bottom.
  • the temperature is recorded, for example, via the change in resistance due to cooling when wetted with liquid and the power is adjusted accordingly.
  • a pulsed supply of thermal energy with “droplet-by-drop” voltage pulses can be advantageous, particularly in the sub-ms range.
  • FIG. 14 An essentially self-explanatory functional circuit diagram of the cigarette product 10 according to the invention based on what has been described above with the help of the inserted reference numbers is shown in Fig. 14 shown.
  • the consumption unit 17 or the cartridge 21 has an electrical control unit 19 and further electrical components, in particular actuators 25 and heating elements 36.
  • the electrical control unit 19 and/or the other electrical components are arranged completely in the reusable base part 56, so that the number of electrical components in the consumption unit 17 or cartridge 21 is reduced, or the consumption unit 17 or cartridge 21 at most passive electrical components (passive data storage 53 such as RFID, transponder or the like), or is free of electrical components.
  • passive data storage 53 such as RFID, transponder or the like

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Human Computer Interaction (AREA)
  • Electrostatic Spraying Apparatus (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
  • Catching Or Destruction (AREA)
  • Special Spraying Apparatus (AREA)
  • Nozzles (AREA)
EP17708765.7A 2016-03-08 2017-03-03 Elektronisches zigarettenprodukt und kartusche für ein elektronisches zigarettenprodukt Active EP3426070B1 (de)

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DE102016002665.0A DE102016002665A1 (de) 2016-03-08 2016-03-08 Elektronisches Zigarettenprodukt und Kartusche für ein elektronisches Zigarettenprodukt
PCT/EP2017/055009 WO2017153270A1 (de) 2016-03-08 2017-03-03 Elektronisches zigarettenprodukt und kartusche für ein elektronisches zigarettenprodukt

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Publication number Publication date
EP3426070A1 (de) 2019-01-16
JP2019513012A (ja) 2019-05-23
KR20180118119A (ko) 2018-10-30
US20200205478A1 (en) 2020-07-02
CN108697180A (zh) 2018-10-23
US11134716B2 (en) 2021-10-05
JP6981989B2 (ja) 2021-12-17
DE102016002665A1 (de) 2017-09-14
WO2017153270A1 (de) 2017-09-14
CN108697180B (zh) 2022-04-15
KR102456689B1 (ko) 2022-10-20

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