EP2760302A2 - Permeable electrical heat-resistant film for vaporisation of liquids from disposable mouthpieces comprising vaporisation membranes - Google Patents

Abstract

A heating device in the form of a metallic film or thin sheet in the shape of a double spiral and/or wavy line having two ends and with the cross-sectional dimension of a cigarette or small cigar, for vaporising substances containing active and/or aroma ingredients from a mouthpiece in the form of a hollow cylinder comprising one or more vaporisation membranes and a flange for detachable connection to a controlled or regulated electrical voltage source, wherein the intermediate spaces of the double spiral and/or wavy line of the heating device are open and thus permeable to flowing fluids, and wherein the heating device is in surface contact with at least one vaporisation membrane, which is also permeable to flowing fluids and is wetted or becomes wetted with a substance containing active and/or aroma ingredients to be vaporised, and wherein the heating device and the at least one vaporisation membrane are arranged orthogonally or at an angle to the fluid stream passing through the mouthpiece, wherein the fluid stream flows through the heating device and the vaporisation membranes completely, wherein the heating device vaporises the substances containing active and/or aroma ingredients located on the vaporisation membrane or membranes and supplies the fluid stream.

Description

 PERMEABLE ELECTRIC HEATING RESISTANCE FILM FOR EVAPORATING LIQUIDS FROM ONE-WAY MOUTHPIECES

WITH EVAPORATOR MEMBRANES

Technical area

 The present invention generally relates to a device for optimized smoke-free inhalation of nicotine and / or additives with electronic cigarettes.

General introduction

 When smoking a conventional cigarette tobacco is burned and the resulting smoke in this combustion is inhaled (mainstream smoke) or released to the environment (sidestream smoke).

The mainstream smoke is largely responsible for the health of the consumer, but provides him with the desired enjoyment. The sidestream smoke is largely responsible for the health damage of passive smokers and is desired by neither the passive smokers nor the consumer.

In the smoke of a cigarette over 4800 different substances were detected, of which about 70 are considered to be carcinogenic.

A method and devices based thereon for the smoke-free inhalation of nicotine and / or additives have the goal to offer the consumer a substitute for the conventional cigarette, which causes a much lower damage to the health of the consumer and third parties, preferably no damage to health of the consumer and third parties, while preserving the consumer experience of a traditional cigarette.

State of the art

Currently established as a replacement for the conventional cigarette so-called e-cigarettes (electronic cigarettes) on the market. Of different approaches, the approach described below, due to its relative easy technical feasibility at the same time convincing functionality (evaporator performance, nicotine outout) enforced.

The 1990 patent DE69017371T2 describes a smoking article comprising a flavor generating medium, an electric heating element and an electrical energy dispensing device, wherein the flavor generating medium is detachable from the electric heating element, characterized in that the electrical heating element is in thermal contact with the flavor-generating medium is that the electrical energy delivery device delivers electrical energy to the heating element to cause the heating element to heat the flavor-generating medium and release flavoring components therefrom; and a control device to regulate the amount of electrical energy delivery by the energy delivery device.

This basic principle has been developed over the last two decades to market maturity and optimized as follows.

A liquid to be evaporated is supplied by the capillary action of a metal mesh or Glasfaserdochtes from a depot of a small heating coil. This is usually turned on by a vacuum switch or vacuum regulator when pulling on the electronic cigarette, whereby the liquid (liquid) evaporates.

The main components of the electronic cigarette are: the accumulator unit with vacuum switch or vacuum regulator and LED for optical simulation of the embers, the evaporator unit (atomizer) with heating coil and capillaries and the mouthpiece with the liquid depot.

[001 1] The three components are generally cylindrical and mimic a cigarette in their shape, forming in their interior a flow channel extending through all three components. When pulling on the electronic cigarette, an air flow is sucked into the accumulator unit, whereby the vacuum switch or vacuum regulator is actuated. This activates the heating coil in the downstream evaporator unit. The helical heating coil is wound around a fiber bundle, which is impregnated directly or via a metal mesh with a further downstream in the mouthpiece liquid depot connected by capillary fluid and is arranged orthogonal to the flow. Activating the heating coil vaporizes liquid and releases it to the airflow.

The filled with the liquid to be evaporated depot itself is not directly exposed to the flow in the flow channel, but arranged in a side pocket of the mouthpiece. Thus, the fiber bundle is supplied by the capillary of metal mesh and glass fiber bundles, without inevitably unvaporized liquid from the depot into the mouth of the consumer passes. The depot usually consists of a small piece of fleece.

In addition to the depot, the mouthpiece includes only a flow channel and the air outlet in the form of a small bore at its end, through which the enriched with vaporized liquid air flow enters the oral cavity of the consumer.

Accumulator and evaporator unit are detachably connected to each other via a thread. Threaded face and threaded surface are electrically conductive and isolated from each other, so that in the bolted state, an electric current flow between the accumulator and evaporator unit and the heating coil can be powered by the battery with activated vacuum switch or vacuum regulator. In the disassembled state, the accumulator unit can be connected via the same thread with a charger.

The mouthpiece is attached via a cylindrical flange on the thread opposite end of the evaporator unit wherein the depot comes into contact with the metal mesh of the evaporator unit in the mouthpiece and the liquid transport is started from the depot into the interior of the heating coil.

A major disadvantage of this embodiment of electronic cigarettes with a separate reusable evaporator unit is the increasing contamination of the evaporator unit during its lifetime. Since many depots of 200 puffs are consumed before the replacement of the evaporator unit and the capillaries are not cleaned, there is the potential danger Microorganisms and undesirable harmful substances evaporate. Up to 6 months, an evaporator unit can be used.

Another disadvantage of the increasing contamination of the evaporator unit is the potential loss of quality over the consumption period. So mixes z. B. when replacing a mouthpiece to be evaporated liquid of the new mouthpiece with the remaining liquid in the capillaries. This is particularly disadvantageous if the consumer wants to consume different flavors with an evaporator.

Another disadvantage is the leakage of liquid when changing the plugged onto the evaporator mouthpieces noticeable, causing the consumer often comes into skin contact with nicotine-containing liquid. Depending on the nicotine content, skin contact may cause mild poisoning.

Last but not least results from this three-part design a difficult to further reduce length as a disadvantage, which does not appreciably exceed the objective of the space of a King-size cigarette contrary runs.

A partial improvement is achieved over the disadvantages mentioned above, when the evaporator unit is integrated into the mouthpiece, since the escape of liquid and the skin contact risk associated therewith are avoided and the space can be better approximated to a king-size cigarette.

As a disadvantage, however, now the wandered with the evaporator in the mouthpiece screw is, which, apart from the uncomfortable handling of a screw, due to the relatively thick metallic wall in the thread and the now given disposable character of the combined product Disposal problem, especially since it is a product for mass production, which increases the use of materials.

For both variants mentioned above, ie both for the variant with a separate evaporator, as well as for the variant with integrated evaporator in the mouthpiece, the refillability of the respective depots and the associated already widespread refilling practice due to the potential risk, the nicotine-containing liquids pose a major problem. Refill bottles may contain a lethal dose of nicotine for children.

Furthermore, the alleged hygienic advantage of the systems with built-in mouthpiece evaporator is nullified, as these are often refilled in practice, although often use fibers as a capillary instead of the glass fiber capillary, which char after prolonged use.

Finally, there is a great disadvantage of the systems with integrated in the mouthpiece evaporator due to the components used, such as the machined Schraubflansch with electrical isolation of outer ring and front side, and difficult to automate assembly, such as the soldered to the screw with the screw heating coil and the guided by the heating coil glass or natural fiber bundles, in the not given for a mass product manufacturability on high-speed machines.

WO2011 / 009920 describes a method for volatilizing active ingredients and / or flavorings for the purpose of delivering an inhalable aerosol, wherein a fluid acted upon by thermal energy flows through a flow channel in a preferably cylindrical hollow body and wherein the fluid in this flow channel at least one evaporator membrane partially or flows through completely, wherein the at least one evaporator membrane is wetted with a substance to be evaporated and containing active substance and / or flavoring and / or wetted and wherein the additional heat energy-containing, ie Fluid which is acted upon by thermal energy as it flows through the evaporator membrane vaporizes this substance or substances and supplies it to the fluid flow.

The latter method and the device based thereon allow optimal evaporation of active substances and / or flavoring substances without the aforementioned disadvantages, such as hygiene problems, design-related high manufacturing costs and too long consumption time, the electrical systems available on the market, whereby it is ideal in principle as a mouthpiece for a smoke-free cigarette, but the method works with a already heated by combustion of liquefied gas fluid flow, as provided by the method described in WO2008 / 113420, whereas the purely electrical production of a correspondingly warm Fluid flow in the space of a cigarette or small cigar due to insufficient space for a heat exchanger can not be displayed.

[0028] WO2008 / 113420 describes a process for volatilizing active ingredients and / or flavorings for the purpose of dispensing an inhalable aerosol, wherein combustion gases of a combustible gas, which is preferably burned with excess air, are partially or completely mixed with ambient air, if necessary, by an active ingredient. and / or flavoring agent depot are performed and wherein a desired temperature by the proportion of combustion gases and optionally by the mixing ratio of these combustion gases with ambient air is selectable.

A major disadvantage of this method is the use of LPG, which due to the supposed risk of explosion in the immediate vicinity of the face, even if this is only purely hypothetical and controllable by fail-safe design, not only safety concerns with potential customers but insist based products are unlikely to be carried on board aircraft.

Object of the invention

 An object of the present invention is therefore to provide a device for electronic cigarettes, which ensures evaporation of nicotine and / or additives without reusable standing in contact with liquid to be evaporated in contact components, and preferably at the same time a strong reduction in costs and environmental impact To achieve by reducing the amount of material used and optimization of machinability.

General description of the invention

This object is achieved according to the invention by a heating device as described in claim 1 and an evaporator device for evaporating liquids from permeable evaporator membranes (similar to those described in WO2011 / 009920) which includes such a heating device, the heating device comprising: A permeable heating foil in the form of a double spiral and / or serpentine with two ends and dimensions of the cross section of a cigarette or cigar, wherein the spaces of the double spiral and / or serpentine line of the heating resistor (1) are open (permeable) and thus permeable to flowing fluids. At least two electrical contacts (contact tabs) fixedly connected on one side to the respective opposite end of the Heizwiderstandsfolie and are exposed with its other side, whereby they can be detachably connected to a regulated or controlled voltage source, wherein the Heizwiderstandsfolie and the electrical Contacts are preferably made of one piece.

Permeable means in the context of the invention for both the Heizwiderstandsfolie and for the evaporator membranes that they are gas-permeable in the direction of their surface normal.

According to the invention, a permeable Heizwiderstandsfolie of an electrically conductive film which is preferably punched or laser cut into a double spiral or serpentine shape or a combination of double spiral and serpentine shape. As a combination of a double spiral and a serpentine shape, the heating resistor may be e.g. have two sub-areas as serpentine lines with an intermediate portion arranged as a double spiral, or as a double spiral with a central portion as a serpentine. Further combinations with additional different subareas are also possible.

The Heizwiderstandsfolie invention consists of an electrically conductive material, preferably made of an aluminum or stainless steel alloy, and more preferably made of food grade pure aluminum, an AlMn alloy or stainless steel, such as X5CrNi18-10.

The wall thickness of a permeable Heizwiderstandsfolie invention is between 0.01 mm and 0.2 mm, but preferably between 0.02 mm and 0.08 mm. Depending on the electrical conductivity of the liquid to be evaporated, the Heizwiderstandsfolie can be coated with a heat-resistant and electrically insulating plastic layer, preferably a layer of polyimide, micanite or silicone, whereby at too low electrical resistance of the liquid to be evaporated in relation to the resistance the Heizwiderstandsfolie a short circuit is avoided. Micanite in the sense of the invention generally refers to an artificial mica, ie a composite consisting of mica fragments (layered silicate fragments) and synthetic resin as a matrix system. Example products are: flexible Mikanit FLM M & P (consisting of at least 92% Muscovite or alternatively Phlogopite, impregnated with a high-temperature resistant silicone binder), flexible Mikanit FLM 521 P, etc.

Such a heater may, for. B. as an electrical heating resistor in an evaporator device for evaporating active and / or flavor substances containing substances, eg. As a disposable disposable mouthpiece for an electronic cigarette. By simply plugging it onto an accumulator unit with vacuum switch or vacuum regulator, the electronic cigarette is ready for use. When the circuit is closed by the vacuum switch or vacuum regulator, the heating resistor foil heats and vaporizes the liquid from the evaporator membrane.

A further aspect accordingly relates to an evaporator device for evaporating active substances and / or flavoring substances, preferably designed as a mouthpiece in the form of a hollow cylinder with a fluid inlet and a fluid outlet. The evaporator device comprises a heating device as described herein and at least one evaporator membrane in surface contact with the heating resistor. The evaporator membrane is also permeable to flowing fluids and is either wetted with a substance to be evaporated containing active substances and / or flavoring substances, or can be wetted with it. The heating resistor and the evaporator membrane (s) are preferably arranged orthogonal or at an angle to the direction of the fluids passing through the mouthpiece.

Due to the specified embodiment of the evaporator device is due to the largest possible contact surface according to the invention between Heizwiderstandsfolie and Verdampfermennbran or Verdampfermennbranen achieved not only a very high evaporator efficiency, but also optimally uniform evaporation.

Another significant advantage of the invention is that by changing the geometric shape of the Heizwiderstandsfolie such. B. by changing the number of spiral turns, the width of the turns and / or the wall thickness of the film or the thin sheet, the performance of the heating resistor can be optimally adapted to different substances to be vaporized with different ingredients.

By appropriate choice of the material and the geometric parameters of the Heizwiderstandsfolie the electrical resistance of the Heizwiderstandsfolie can be adjusted in the range of 1 - 10 Ω, whereby at a possible rated voltage of a connected accumulator unit of 1, 2 V (NiCd) - 3.7 V (Li-Ion) a spectrum of 0.1 - 13.7 watts heating power in the cross-section of a cigarette mouthpiece can be covered.

Another important advantage of the invention is that in the contour of the Heizwiderstandsfolie by a local taper (bottleneck) a fuse can be integrated, which is thermally destroyed in depleted liquid due to the then lack of cooling, and makes the mouthpiece useless, whereby a disposable mouthpiece with a targeted consumption duration of 5-20 strokes per 20-50 ml, but preferably 8-12 strokes per 35 ml, can be represented particularly simply.

In a further embodiment, the evaporator device further comprises a flange for detachable connection of a controlled or regulated electrical voltage source with the electrical poles, wherein the contact tabs which are connected to the respective opposite end of the double spiral and / or serpentine line of the heating resistor not immediately, d. H. only via the heating resistor, in contact with each other. These contact tabs can be brought via the flange in conjunction with the electrical poles of a controlled or regulated electrical voltage source.

Preferably, an insulating film covers the contact tabs to a flange on the inside of the hollow cylinder of the mouthpiece. The insulating film preferably has in the region of the flange at least two axially offset contact openings, said contact openings are preferably configured such that they lie axially in a plane and release only one contact tab. The poles of a controlled or regulated electrical voltage source are z. B. two axially offset rings and in the connected state of mouthpiece and voltage source is in each case one pole of the voltage source via the contact openings with the contact tabs and the contact tabs with one end of the double spiral and / or serpentine line of the heating resistor in combination.

In a further embodiment, the contact tabs and / or the flange preferably have at least one fitting groove and / or fitting nose, wherein they have a corresponding counterpart in the form of at least one fitting nose and / or fitting groove on the controlled or regulated electrical voltage source. In the connected state of the mouthpiece and voltage source is in each case a pole of the voltage source with the contact tabs and the contact tabs with one end of the double spiral and / or serpentine line of the heating resistor in combination.

In a further preferred embodiment, at least one tapered and / or sharp-edged Öffnerlasche of a metallic foil or a thin sheet, preferably (but not necessarily) from the same metallic foil, or from the same thin sheet as the heating resistor , extends with its sharp and / or sharp-edged side ahead of the heating resistor axially in the direction of the flange of the mouthpiece and is designed such that when connecting mouthpiece and voltage source located between the heating resistor and flange sealing film of a storage capsule with an active and / or substance containing flavorings is filled, pricked and / or sliced.

Thus, the invention not only allows the production of a combination of depot and evaporator function in a disposable mouthpiece with, over known devices of this type, more efficient evaporation and lower resource consumption, but also provides a well-defined temporary consumption experience. Due to the preferred production of the described Heizwiderstandsfolie by punching and Gesenkbiegen, this can be excellently integrated into a high-speed production process, wherein a further significant advantage of the present invention is justified.

Brief description of the figures

 In the following, advantages and advantageous embodiments of the invention will now be described with reference to the accompanying figures.

Fig. 1 shows two variants of a preferred embodiment of the heating device described in the present invention, in which the heating resistor 1, the contact tabs 13 and two Öffnerlaschen 14 are made of a single piece of metallic foil. a) A double spiral 101 as a heating resistor. 1 b) A serpentine line 102 as a heating resistor 1, in which a fuse 12 is additionally integrated.

Fig. 2 shows how a mouthpiece 3, according to a preferred embodiment of the present invention, is connected to a voltage source 4, wherein the two annular poles 41 of the voltage source 4 via the contact openings 21 in the insulating film 2 with the contact plates 13 in contact come, whereby the heating resistor 1 can be supplied with power and wherein the storage capsule 36 is displaced axially through the end face of the flange 33 of the voltage source 4 within the hollow cylinder 31 in the direction of buffer memory 321, whereby the Öffnerlaschen 14, the sealing foil 361 of the storage capsule 36 tear open and the Active substance and / or flavor substance containing substance in the buffer memory 321 and from there further into the evaporator membranes 32 flows. a) Mouthpiece in the inactive storage condition with intact sealing foil 361 and storage capsule 36 in the starting position, with voltage source 4 not yet plugged in. b) Mouthpiece in activated use state with destroyed sealing foil 361 and storage capsule 36 in end position, with plugged-in voltage source 4. Description of a preferred embodiment of the invention

 In a preferred embodiment of the invention, a device according to the invention serves as a heating resistor 1, e.g. in a device described in WO2011 / 009920, i. H. a device according to the invention is combined with a device in which a fluid flows through at least one evaporator membrane 32 in a flow channel 31, wherein the at least one evaporator membrane 32 is wetted with a substance to be evaporated active and / or flavoring and / or wetted, wherein the Inventive device of the substance to be vaporized active and / or flavor substance containing thermal energy, whereby this substance is evaporated and supplied to the fluid flow.

In this embodiment, the inventive device comprises a hollow cylinder 31 consisting of plastic film, cardboard and tipping paper, the tipping paper is wrapped around the outside of the carton and preferably corresponds to the so-called cork paper of cigarette filters and the cardboard is coated on the inside with a plastic film , a permeable heating foil 1 in the form of a double spiral 101, which is stamped from aluminum foil, wherein the permeable heating foil 1 is coated with a polyimide insulating layer 1 1, two electrical contacts 13 in the form of contact tabs 13 on the heating foil 1, longitudinally inside the Hollow cylinder 31 along the inner surface of the Heizwiderstandsfolie 1 extend into the flange 33, wherein the contacts each describe the cross section of a quarter circle, two permeable evaporator membranes 32, wherein in the axial direction in each case an evaporator membrane 32 before and an evaporator membrane 32 is disposed behind the permeable Heizwiderstandsfolie 1 in direct surface contact with this and wherein the evaporator membranes are partially in direct contact with each other, an evaporator buffer 321 in the form of a ring of an absorbent nonwoven over which the evaporator membranes 32 are stretched like a tympanic membrane, two Öffnerlaschen 14 in the form of pointed teeth which protrude from the contact tabs 13 in the flow channel 31 and axially from the Heizwiderstandsfolie 1 in the direction Flange 33, an insulating film 2 which extends longitudinally within the hollow cylinder 31 and within the contact plates 13 along the inner surface of the Heizwiderstandsfolie 1 in the flange 33 with two axially offset contact openings 21, wherein the inside of the insulating film 2 and through the contact openings 21 exposed surfaces of the contact plates 13, the flange face 331 of the mouthpiece side flange 33 constitute an axially movable annular storage capsule 36 within the insulating film 2 of the hollow cylinder 31, which contains a substance containing active and / or flavoring by a closure film 361 is sealed, wherein the sealing film 361 is destroyed when the storage capsule 36 is moved in the direction of the Heizwiderstandsfolie 1 so far that the sealing film 361 is penetrated by the Öffnerlaschen 14.

The above-described preferred embodiment of the present invention is used with a stabformigen voltage source 4 with two annular poles 41 on the outer surface of the voltage source side flange 33, wherein the voltage source on the end face of the flange 33 has an air outlet opening through which the fluid flow in the Mouthpiece 3 flows, wherein in the flow channel of the voltage source is a vacuum regulator which controls the current flow from the voltage source via the annular poles 41 through the contact tabs 13 and the Heizwiderstandsfolie 1 of the mouthpiece 3 in the connected state. Table 1: Reference list

No. General name Specific name

 1 heating resistor permeable heating foil

 101 double spiral

 102 snake line

 11 insulating layer electrically insulating plastic layer

12 fuse

 13 contact tab electrical contact

 14 opener tab

 2 insulating film

 21 contact opening

 3 mouthpiece

 31 hollow cylinder flow channel

 311 fluid inlet

 312 fluid outlet

 313 flow channel

 32 evaporator membrane permeable evaporator membrane

 321 Buffer memory evaporator buffer

 33 flange

 331 flange surface

 34 passport

 35 passnose

 36 storage capsule

 361 sealing film

 4 Voltage source accumulator unit with vacuum switch

41 pole electrical pole

Claims

claims  1 . Heating device comprising a heating resistor (1) in the form of a metallic foil or a thin sheet in the form of a double spiral (101) and / or serpentine line (102) with two ends and dimension of the cross section of a cigarette or small cigar, wherein the spaces between the double spiral and / or serpentine line of the heating resistor (1) are open and thus permeable to flowing fluids and wherein in each case at least one contact lug (13) made of metallic foil or thin sheet metal, each having one end of the double spiral (101) and / or serpentine line (102) of the heating resistor (1 ), wherein the contact tabs (13) which are connected to the respective opposite end of the double spiral (101) and / or serpentine line (102) of the heating resistor (1) are not in direct contact with each other. 2. Heating device according to claim 1, wherein the heating resistor (1) and the contact tabs (13) consist of a piece of metallic foil or thin sheet metal. 3. Heating device according to claim 1 or 2, which further comprises at least one tapered and / or sharp-edged Öffnerlasche (14). 4. Heating device according to one of claims 1 to 3, wherein the heating resistor (1), the contact tabs (13) and possibly the Öffnerlasche (s) (14) consist of a piece of metallic foil or thin sheet metal. 5. Heating device according to one of claims 1 to 4, wherein the metallic foil or the thin sheet of the heating resistor (1), the contact tabs (13) and / or the Öffnerlasche (s) (14) made of pure aluminum, an aluminum-manganese alloy or stainless steel. 6. Heating device according to one of claims 1 to 5, wherein the heating resistor (1) with an insulating layer (11), preferably a layer of polyimide, micanite or silicone is coated. 7. Heating device according to one of claims 1 to 6, wherein the heating resistor (1) has a fuse (12) in the form of a bottleneck in the double spiral (101) and / or serpentine line (102). 8. Verdampfervornchtung for evaporating substances containing active and / or flavor substances, designed as a mouthpiece (3) in the form of a hollow cylinder (31) having a fluid inlet (311) and a fluid outlet (312), comprising a heating device according to one or more of the claims 1 to 7 and at least one evaporator membrane (32) which is in surface contact with the heating resistor (1), which is also permeable to flowing fluids and which is wetted or wetted with a substance to be evaporated active and / or flavoring substances. 9. Evaporator device according to claim 8, further comprising a flange (33) for detachable connection of a controlled or regulated electrical voltage source (4) with the electrical poles (41), wherein the contact tabs (13) connected to the respective opposite end of the double spiral ( 101) and / or serpentine line (102) of the heating resistor (1) are not in direct contact with each other and are brought via the flange (33) in conjunction with the electrical poles (41) of a controlled or regulated electrical voltage source (4) can be. 10. Evaporator device according to claim 8 or 9, wherein the heating resistor (1) and the at least one evaporator membrane (32) orthogonal or at an angle to the direction of the mouthpiece (3) passing fluids are arranged. 1 .Verdampfervorrichtung according to claim 9 or 10, wherein the mouthpiece (3) further comprises a storage capsule (36) which is filled with the active and / or flavoring substances filled and wherein at least one tapered and / or sharp-edged Öffnerlasche (14) of a metallic foil or a thin metal sheet, which extends with its sharp and / or sharp-edged side ahead of the heating resistor (1) axially in the direction of the flange (33) of the mouthpiece (3) and is designed such that it is connected when connecting the mouthpiece (3) and voltage source (4) a sealing foil (361) located between the heating resistor (1) and flange (33) of the storage capsule (36) pierces and / or cuts. 12. Evaporator device according to one of claims 9 to 11, which is in releasable connection of a controlled or regulated electrical voltage source (4) with the electrical poles (41), wherein an insulating film (2) the Contact tabs (13) to a flange (331) on the inside of the hollow cylinder (31) of the mouthpiece (3) hidden and wherein the insulating film (2) in the region of the flange (331) at least two axially offset contact openings (21), the contact openings (21) are designed so that they lie axially in one plane and release only one contact tab (13) and wherein the poles (41) of the controlled or regulated electrical voltage source (4) are two axially offset rings and wherein in the connected state of Mouthpiece (3) and voltage source (4) each have a pole (41) of the voltage source (4) via the contact openings (21) with the contact tabs (13) and via the contact tabs (13) each having one end of the double spiral (101) and / or serpentine line (102) of the heating resistor (1) is in communication. 13. Evaporator device according to claim 12, wherein the contact lugs (13) and / or the flange (331) at least one fitting groove (34) and / or fitting nose (35), wherein this a corresponding counterpart in the form of at least one pass tab (35) and in the connected state of mouthpiece (3) and voltage source (4) in each case one pole (41) of the voltage source (4) with the contact lugs (13) and via the contact tabs (13) with one end of the double spiral (101) and / or serpentine line (102) of the heating resistor (1) is in communication.