US20250072501A1

US20250072501A1 - Heating Socket System for Electronic Smoking Devices

Info

Publication number: US20250072501A1
Application number: US18/283,141
Authority: US
Inventors: Daniel Lickefeld
Original assignee: JT International SA
Current assignee: JT International SA
Priority date: 2021-04-12
Filing date: 2022-04-11
Publication date: 2025-03-06
Also published as: EP4322779A1; WO2022218913A1

Abstract

An electronic smoking device for generating an inhalable aerosol, wherein the electronic smoking device includes a mouth piece and a body section, the body section including a substance cartridge with an aerosolizable substance, a heating section, and a hull, wherein the heating section is arranged in between the mouth piece and the substance cartridge, and wherein the heating section is heatable to aerosolise the aerosolizable substance. The heating section includes a porous material and a heating element to heat the porous material, wherein the porous material also includes a cavity which creates a fluid flow path from the substance cartridge to the mouth piece.

Description

The present invention relates to an electronic smoking device for generating an inhalable aerosol, wherein the electronic smoking device comprises a mouth piece and a body section, the body section comprising a substance cartridge with an aerosolizable substance, a heating section, and a hull, wherein the heating section is arranged in between the mouth piece and the substance cartridge, and wherein the heating section is heatable to aerosolise the aerosolizable substance.
Such electronic smoking devices are known in the tobacco industry, wherein most of them contain a liquid inside the substance cartridge which is soaked up by a wick and transported to the heating section. The liquid then usually gets into contact with a heating element and is thereby vapored to be inhaled through a mouth piece by a consumer. Due to fact that the heating element in such electronic smoking device usually does not heat the wick evenly, some parts are heated more than others. This leads to problems with an optimal vaporisation of the liquid, because some of the liquid will be heated too much and some will not be heated sufficiently. Furthermore some of the liquid might not be heated at all and thereby remain in the wick for various heating periods. This could result in a taste for the consumer which is not fresh, or does not correspond to the intended taste of the vaporised liquid. Furthermore, individual components in the liquid could also have different evaporation temperatures, which means that only some components of the liquid could evaporate in some areas of the wick that have different temperatures. The uneven heating of the wick might also lead to inefficient use of the liquid to problems for a consumer to regulate the vapour generation from the device.
It is therefore the object of the invention to provide an electronic smoking device with a vaporizable substance, wherein the vaporizable substance is evenly heated during usage of the device which results in a consistent and repeatable taste experience for a consumer and also enables precise and efficient control of the vapour flow rate from the device. This object is achieved by the electronic smoking device of claim 1. Preferred embodiments of the invention are object of the dependent claims.
According to the invention the heating section comprises a porous material and a heating element to heat the porous material, wherein the porous material also comprises a cavity which creates a fluid flow path from the substance cartridge to the mouth piece.
Preferably the heating element is arranged in a way that it at least partially contacts the porous material to distribute heat from the hating element into the porous material. Preferably the porous material distributes the heat evenly to ensure that the same heating temperature is maintained everywhere.
It is conceivable that the heating section of the electronic smoking device is arranged in between the mouth piece and the substance cartridge of the device. Thereby the heating section is preferably not geometrically arranged in between the substance cartridge and the mouth piece, but in a way, that the substance from the substance cartridge preferably has to transit the heating section to enter the mouthpiece.
It is conceivable that the porous material in the heating section comprises a round, angular, cylindrical, polygonal or other geometrical shape. Preferably the cavity is always arranged in the centre of the porous material.
In a preferred embodiment the porous material comprises the shape of a tube, wherein the heating element is arranged outside the tube, and wherein the fluid flow path is arranged inside of the tube. Preferably the tube is a linear tube, whereby other forms are also possible.
Also preferably the inside of the tube is the cavity of the porous material, wherein the fluid flow path thereby flows through the tube. It is conceivable that the cavity inside the porous material comprises an angular, cylindrical, or other geometrical shape. Preferably the fluid flow path is dependent on the shape of the cavity and thereby can also be non-linear.
Due to the heating element being arranged outside the tube, the substance from the substance cartridge preferably does not directly get into direct contact with the heating element. It is conceivable that the heating element and the substance are arranged on opposite sides of the porous material. Thereby the heating element preferably heats the porous material, wherein the porous material transfers the heat to the substance. This preferably allows an indirect heating of the substance, and thereby an even heat distribution from the heating element to the substance.
Preferably the heating element is only partially arranged at the outside of the porous material, wherein an at least partial inclusion of the heating element inside the porous material would lead to a better heat dissipation from the heating element to the porous material.
In a preferred embodiment the electronic smoking device further comprises a flow sensor to detect a fluid flow inside the device.
It is conceivable that such sensor can be a flow-meter which preferably measures a fluid flow inside the electronic smoking device. Preferably such sensor controls the heating element inside the device to generate a sufficient amount of heat according to a fluid flow inside the device. It is conceivable that the control of the device occurs regarding and/or corresponding to the flow of the substance which is applied into the cavity. The heating might also be controlled according to the flow through the mouth piece of the device.
In a preferred embodiment aerosolizable substance is releasable from the substance cartridge into the cavity of the porous material.
Preferably the substance is a liquid, wherein releasing thereby preferably means spraying of the liquid from the substance cartridge into the cavity of the porous material.
It is conceivable that the substance can also be a powder or different solid material which is preferably brought into the cavity by spraying and/or another suitable transport mechanism.
It is conceivable that the porous material is heated before the substance is released into the cavity. Preferably by releasing the substance into the cavity, it gets into contact with the previously heated porous material. It is conceivable that thereby the substance evaporates and produces vapour which then preferably continues to flow along the flow path.
It is conceivable that the substance can also be sprayed into the cavity before the porous material is heated.
In a preferred embodiment the electronic smoking device further comprises an atomizer which is attached to the substance cartridge, wherein the aerosolizable substance is releasable from the substance cartridge through the atomizer and thereby atomizable by the atomizer into the cavity of the porous material.
Preferably the atomizer sprays the substance directly onto the porous material instead of spraying the substance into the cavity, which would lead to a better heat exchange from the porous material to the substance.
Also preferably the atomizer distributes the substance evenly inside the cavity and preferably onto the porous material which surrounds the cavity which would lead to an even heating of the substance without temperature gradients. This ensures a constant taste experience.
It is conceivable that the atomized substances mixes with air inside the cavity and thereby forms an aerosol which is heatable by porous material.
In a preferred embodiment the electronic smoking device further comprises a pressure generating mechanism by which the aerosolizable substance is displaceable from the substance cartridge into the cavity. Preferably the pressure generating mechanism pressurizes the substance cartridge to release the substance into the cavity.
The pressure generating mechanism is preferably arranged inside the device in a way to be able to pressurize the substance cartridge. Preferably the substance cartridge is thereby constantly under pressure and closed towards the heating section with a valve. The valve is preferably arranged in between the substance cartridge and the atomizer, wherein upon opening of the valve substance is pushed through the atomizer and is atomized into the cavity.
It is conceivable that by refilling of the substance cartridge the cartridge is also pressurized once, wherein this makes an additional pressurizing mechanism inside the electronic smoking device superfluous.
It is conceivable that the pressure generating mechanism is also arranged in between the substance cartridge and the atomizer, wherein the substance cartridge would then preferably not be pressurized. It is conceivable that the pressure generating mechanism receives substance from the substance cartridge and pressurizes it to push it through the atomizer into the cavity. This would make the assembly of the substance cartridge easier to manufacture, because it has not to be designed pressure tight.
Preferably the pressure generating mechanism is a pump and/or microelectromechanical system (MEMS) which functions upon an interaction of a consumer with the device. It is conceivable that the pump can be an electrical and/or mechanical pump which could then be driven by the consumer.
An interaction of a consumer with the electronic smoking device preferably triggers the heating of the porous material as well as the pressure rise by the pressure generating mechanism. This would make two individual interfaces superfluous. Also the parameters of heating and substance injection into the cavity could be regulated depending on each other.
It is conceivable that the consumer himself generates the pressure upon a mechanical interaction with the device. The consumer could build pressure inside the substance cartridge upon pressing and thereby deforming of a deformable pouch. Preferably the pouch is the substance cartridge itself and releases substance into the cavity due to a consumer applying force to it. It is conceivable that the pressure generation can also occur from a mechanical pump. Pressure building due to a mechanical force interaction from a consumer would make a MEMS and/or electrical pump superfluous and thereby save electrical power.
In a preferred embodiment the electronic smoking device further comprises an activation sensor which is arranged to detect a consumer interaction with the device.
Preferably the sensor detects any interaction of a consumer with the device and controls the device according to the detected interaction. Thereby it is conceivable that the sensor can be a capacitive Sensor, an optical sensor, a pressure sensor and/or a haptic interface.
The interaction of a consumer is preferably a haptic interaction such as touching the device, moving the device, sucking on the mouth piece and/or pressing a button.
Preferably the device recognizes an interaction of a consumer either automatically and/or mechanically whereafter at least one parameter inside the device is controlled. This parameter could be the heating power, the substance flow rate into the cavity, the pressure generating, the mixing ratio of vapour and fresh air and other parameters of an electronic cigarette that can be regulated.
It is conceivable that at least one of the controllable parameters of the electronic smoking device is controlled according to at least one sensor parameter. Preferably multiple parameters are controlled according to one sensor output. It is conceivable that one controllable parameter can also be dependent on multiple sensor outputs.
In a preferred embodiment the releasing of aerosolizable substance from the substance cartridge into the heating section is based on signals from the sensor.
The parameters after which an aerosolizable substance is released into the heating section might be the releasing pressure, the amount, the particle size of the released substance and the direction in which the substance is released.
It is conceivable that the releasing of substance into the heating section is regulated in such way that the vapour which is inhaled from a consumer through the mouth piece has constant characteristic in terms of temperature density and/or ingredients. It is conceivable that the regulation can be influenced by the consumer to meet his needs. Thereby the consumer is preferably able to manually set at least one of the regulation parameters of the device.
In a preferred embodiment the porous material is a high temperature resistant material, which preferably comprises metal and/or ceramic materials.
The material preferably has a high thermal conductivity to better distribute the heat from the heating element. It is conceivable that the material also has a low heat capacity so that the heating of the porous material occurs without delay. Preferably, the material should also be at least partially permeable to a fluid flow to allow the fluid to flow through the material. Preferably the fluid is air from outside of the device.
The porous material and especially the porosity of it and the aerosolizable substance are preferably matched to each other in such a way that clogging of the porous material by the substance or its residues is not possible.
Preferably the material is a sintered material comprising at least one metallic or one at least one ceramic component. It is conceivable that also a combination of various metallic components is possible, as well as a combination of various ceramic components. The material preferably comprises at least one metal and at least one ceramic compound. It is conceivable that also other high temperature compounds can be used.
In a preferred embodiment the porous material is heatable by the heating element to a temperature of 200° C. to 350° C., preferably to a temperature of 200° C. to 290° C. The heating element is therefore preferably in direct contact with the porous material. It is conceivable that the heating temperature can be adjusted to fit a vaporizing temperature from the substance temperature. This would be an advantage when using an aerosolizable substance which varies in taste according to different heating temperatures.
The heating temperature can preferably be adjusted either continuously or in steps. Preferably, either the heating power itself or the resulting temperature at which the substance is vaporised can be adjusted. Preferably, a maximum heat output of 50 W can be set.
In a preferred embodiment the aerosolizable substance is aerosolizable by contact with the heated porous material, wherein an aerosol is releaseable from within the porous material into the mouth piece along the fluid flow path.
Preferably, the aerosolizable substance is sprayed from the substance cartridge and through the atomizing unit directly onto the porous material which is preferably preheated and thereby vaporizes the aerosolizable substance.
It is also conceivable that the aerosolizable substance is finely atomized by the atomizing unit within the cavity and thus only a part of the aerosolizable substance has contact with the porous material. Preferably, the temperature in the cavity is high enough that the aerosolizable substance evaporates without touching the porous material.
It is also conceivable that the porous material is not heated initially and the aerosolizable substance is thus sprayed onto the cold material. Preferably, the porous material then absorbs the aerosolizable substance at least partially. It is conceivable that the porous material is then heated and the aerosolizable substance thus evaporates.
In a preferred embodiment the porous material is a sintered material with a particle size of 1-80 micrometre and preferably 1-20 micrometre. It is conceivable that the individual particles can comprise different sizes, or that all particles comprise the same size. Preferably the particles can also comprise different geometrical shapes. It is conceivable that all particles can also comprise the same shape.
In a preferred embodiment the device comprises a second fluid flow path which is arranged in the body section between the hull and porous material, wherein preferably this second flow path is in a fluid connection to the outside of the device through a hole in the hull. Preferably the second flow path is divided from the first flow path by the heating element and the porous material. Preferably, the second flow path at least partially surrounds the porous material and thus also preferably lies parallel to the first flow path.
The second flow path preferably allows air from the environment of the electronic smoking device to flow into it and to surround the porous material. The second flow path is preferably so large that a volume flow, which occurs when a consumer inhales, can flow through it.
In a preferred embodiment the porous material connects the first liquid flow path and the second liquid flow path and thereby functions as a third liquid flow path. It is conceivable that thereby the air from outside of the electronic smoking device can flow through the second flow path into the device and afterwards through the third flow path into the first flow path.
Preferably the air from the outside of the device thereby passes through the porous material and mixes with the vapour from the aerosolizable substance from within the porous material. It is conceivable that this mixture is afterwards inhaled by the consumer of the device.
It is conceivable that air which flows through the porous material is thereby filtered. Also the air is preferably preheated and also preferably cools the hull of the device by flowing past it and touching it.
It is conceivable that the electronic smoking device can be disassembled into its individual parts and also be reassembled. Preferably, each part can be separated from the other parts, replaced and then the electronic smoking device can be reassembled.
The object of the invention is also reached by a method for creating an inhalable aerosol with an electronic smoking device, wherein the method comprises the following steps:

- first the porous material is heated by the heating element,
- then the aerosolizable substance is released from the substance cartridge into the cavity of the heated porous material and thereby aerosolised,
- afterwards, by pulling of a consumer at the mouth piece, air from outside of the device flows along the second and third flow path and mixes with the aerosolized substance inside the cavity, the resulting inhalable aerosol is then released from the cavity along the first flow path into the mouth piece.

Further advantages and embodiments according to the invention are illustrated in the attached drawing.

Herein show:

FIG. 1 an electronic smoking device according to the invention

FIG. 2 an electronic smoking device in two dimensional view

FIG. 3 porous material and heating element inside the electronic smoking device

FIG. 1 shows a view into the electronic smoking device 1 with the mouth piece 3 being arranged to the body section 4, and wherein the body section 4 comprises the heating section 6. The body section 4 further comprises the substance cartridge 5 with the aerosolizable substance 5 a. The heating section 6 is arranged in between the mouth piece 3 and the substance cartridge 5 inside the body section 4 of the device 1.
The substance cartridge 5 preferably also comprises a pressure generating 13 mechanism which is suitable for generating pressure inside the substance cartridge 5.
The pressure generating mechanism 13 can also be arranged outside the substance cartridge 5. It is also possible that the pressure generating mechanism 13 is arranged in between the substance cartridge 5 and the atomizer 11.
On the outside of the substance cartridge 5 the atomizer 11 is arranged. The atomizer 11 is preferably arranged at the substance cartridge 5 in the direction towards the heating section 6. The atomizer 11 can inject the aerosolizable substance 5 a from the substance cartridge 5 into the cavity 10 of the porous material 8 along the flow path f. The flow path f thereby exists in the direction from the substance cartridge 5 through the heating section 6 towards the mouth piece 3.
The porous material 8 and the heating element 9 is illustrated in a sectional cut view to allow a view inside the porous material 8 and thereby inside the cavity 10.
The porous material 8 is preferably heated by the heating element 9 before the aerosolizable substance 5 a is injected into the cavity 10. The heating element 9 preferably surrounds the porous material 8 to allow an even heat dissipation into the porous material 8.
The heating element 9 is preferably a heating coil 9 which spiralling surrounds the porous material 8. The heating element 9 could also be a heating foil or other types of heaters which are suitable to heat the porous material 8. The heating element 9 in FIG. 1 is arranged on the surface of the porous material 8, wherein in further embodiments the heating element 9 can also be partially or fully integrated inside the porous material 8.
The substance 5 a which is injected into the cavity 10 preferably gets into contact with the heated porous material 8 and thereby aerosolizes. The resulting aerosol then exits the cavity 10 and thereby the heating section 6 into the mouth piece 3 along the flow path f.
Preferably a consumer is pulling air from the mouth piece 3, while the aerosolizable substance is injected into the cavity 10. Thereby the consumer preferably triggers the activation sensor 12 which in the embodiment of FIG. 1 is arranged inside the mouth piece 3.
Based on data from the activation sensor the device 1 is controlled. Preferably this means that the pressure generating mechanism 13 as well as the heating element 9 is controlled on base of the sensor 12 data. The sensor 12 inside the mouth piece 3 is preferably a flow sensor which measures a flow of inhalable aerosol from the heating section 6 through the mouth piece 3. The sensor 12 could also be a pressure sensor, which measure a pressure drop upon a consumer pulling inhalable aerosol from the device 1. The sensor 12 could also be a sensor which registers movement of the device 1.
The consumer builds an under pressure inside the cavity 10 upon sucking on the mouth piece 3, which is why air from the outside of the device 1 needs to be led into the device 1. This air is added to the vapour inside the cavity 10 to balance the negative pressure.
Therefore the outer hull 7 of the electronic smoking device 1 comprises at least one hole 14 through which air can flow along the second flow path fa into the device 1. This flow path fa surrounds the heating element 9 and the porous material 8 and is thereby arranged in between the heating element 9 and the outer hull 7 of the device 1.
Air which flows along the second flow path fa is in contact with the outer hull 7 and thereby acts as a convective cooling flow.
To be mixed with the vapour inside the cavity 10, the air needs to flow from the second flow path fa to the first flow path f inside the cavity 10. The air therefore passes through the porous material 8, wherein the porous material 8 thereby preferably creates a third flow path fp through itself. By flowing through the porous material 8 the air preferably gets pre heated and filtered.
Inside the cavity 10 the air mixes with the aerosolizable substance 5 a. If the aerosolizable substance 5 a is already aerosolised due to contact with heated porous material 8, the air mixes with the resulting aerosol. The inhalable aerosol from air and vaporised substance 5 a flows along the flow path f into the mouth piece 3 and can be inhaled by a consumer.
FIG. 2 shows an electronic smoking device 1 as it is shown in FIG. 1 , wherein the illustration in FIG. 2 is a two dimensional view inside the electronic smoking device 1. FIG. 2 provides a more precise overview of the flow paths, wherein the flow path f in which the substance 5 a is released from the substance cartridge 5 into the cavity 10 is shown. Also the area in which air from the outside of the device 1 can flow along the second flow path fa is more clearly marked out.
It can be seen that by pushing air inside the mouth piece 3 against the direction of the flow path f, the air might build an overpressure inside at least one of the three flow paths. Thereby an aerosol could flow against its desired direction and thereby cause damage inside the device 1. Therefore the mouth piece 3 can comprise a one way valve 15 to prevent a flow of aerosol against the desired direction. The one way valve 15 is preferably arranged in between the mouth piece 3 and the body section 4 of the device. All fluid which exits the device 1 through the mouth piece 3 thereby has to flow through the one way valve 15.
FIG. 3 shows the porous material 8 with the heating element 9 next to the substance cartridge 5 with aerosolizable substance 5 a and the atomizer 11. The substance cartridge 5 is arranged in a distance to the porous material 8 that the atomizer 11 is at least partially inserted inside the cavity 10.
Preferably there is no gap between the substance cartridge 5 and the porous material 8. The atomizer 11 would thereby be completely arranged inside the cavity 10 as shown in FIG. 2 .
The atomizer 11 in FIG. 3 injects aerosolizable substance 5 a into the cavity 10 inside the porous material 8 along the flow path f, wherein the porous material 8 is heated by the heating element 9 and thereby vaporizes the aerosolizable substance 5 a. The resulting vapour is released from the cavity 10 at the opposite direction at which the substance cartridge 5 is arranged and inside the direction of the flow path f.
The vapour which is released from the cavity 10 is a mixture of vaporised aerosolizable substance 5 a and air from outside of the device 1 which enters the cavity through the porous material 8 along the third flow path fp.
In FIG. 3 the particles of the porous material 8 are illustrated. The porous material 8 as well as the heating element 9 is shown in a sectional cut view. The body shape of the porous material in FIG. 1-3 is shaped as a hollow cylinder, whereas the heating element 9 is shaped as a heating coil which spirally surrounds the porous material 8.
Embodiments in which the porous material 8 has a cuboid shape and a heating element 9 is arranged on at least one outer surface of the cuboid porous material 8 would also be possible.
The applicant reserves his right to claim all features disclosed in the application document as being an essential feature of the invention, as long as they are new, individually or in combination, in view of the prior art. Furthermore, it is noted that in the figures features are described, which can be advantageous individually. Someone skilled in the art will directly recognize that a specific feature being disclosed in a figure can be advantageous also without the adoption of further features from this figure. Furthermore, someone skilled in the art will recognize that advantages can evolve from a combination of diverse features being disclosed in one or various figures.

REFERENCE SIGNS

- 1 electronic smoking device
- 2 inhalable aerosol
- 3 mouth piece
- 4 body section
- 5 substance cartridge
- 5 a aerosolizable substance
- 6 heating section
- 7 outer hull
- 8 porous material
- 9 heating element
- 10 cavity inside porous material
- 11 atomizer
- 12 activation sensor
- 13 pressure generating mechanism
- 14 hole inside the hull
- 15 one way valve
- f fluid flow path
- fa second flow path
- fp third flow path

Claims

1. An electronic smoking device for generating an inhalable aerosol, wherein the electronic smoking device comprises a mouth piece and a body section, the body section comprising a substance cartridge with an aerosolizable substance, a heating section, and a hull, wherein the heating section is arranged in between the mouth piece and the substance cartridge, and wherein the heating section is heatable to aerosolise the aerosolizable substance,

wherein,

the heating section comprises a porous material and a heating element to heat the porous material, wherein the porous material further comprises a cavity which creates a fluid flow path from the substance cartridge to the mouth piece.

2. The electronic smoking device according to claim 1,

wherein,

the porous material comprises a shape of a tube, wherein the heating element is arranged at an outside of the tube, and wherein the fluid flow path is arranged in an inside of the tube.

3. The electronic smoking device according to claim 1,

wherein,

the electronic smoking device further comprises a flow sensor to detect a fluid flow inside the device.

4. The electronic smoking device according to claim 1,

wherein,

the aerosolizable substance is releasable from the substance cartridge into the cavity of the porous material.

5. The electronic smoking device according to claim 1,

wherein,

the electronic smoking device further comprises an atomizer attached to the substance cartridge, wherein the aerosolizable substance is releasable from the substance cartridge through the atomizer and thereby atomizable into the cavity of the porous material.

6. The electronic smoking device according to claim 1,

wherein,

the electronic smoking device further comprises a pressure generating mechanism by which the aerosolizable substance is displaceable from the substance cartridge into the cavity.

7. The electronic smoking device according to claim 1,

wherein,

the electronic smoking device further comprises an activation sensor which is arranged to detect a customer interaction with the device.

8. The electronic smoking device according to claim 7 wherein,

the electronic smoking device further comprises a flow sensor to detect a fluid flow inside the device; and

the releasing of aerosolizable substance from the substance cartridge into the heating section is based on signals from at least one of the activation sensor or the flow sensor.

9. The electronic smoking device according to claim 1,

wherein,

the porous material is a high temperature resistant material.

10. The electronic smoking device according to claim 9,

wherein,

the porous material is heatable by the heating element to a temperature of 200° C. to 350° C.

11. The electronic smoking device according to claim 1,

wherein,

the aerosolizable substance is aerosolizable by contact with the heated porous material, wherein an aerosol is releaseable from within the porous material into the mouth piece along the fluid flow path.

12. The electronic smoking device according to claim 1,

wherein,

the porous material is a sintered material with a particle size of 1-80 micrometre.

13. The electronic smoking device according to claim 1,

wherein,

the electronic smoking device further comprises a second fluid flow path is arranged in the body section between the hull and the porous material.

14. The electronic smoking device according to claim 13,

wherein,

the porous material connects the first liquid flow path and the second liquid flow path and thereby functions as a third liquid flow path.

15. A method for creating an inhalable aerosol with an electronic smoking device according to claim 14, the method comprising:

heating the porous material by the heating element,

releasing the aerosolizable substance from the substance cartridge into the cavity of the heated porous material and thereby aerosolised,

by pulling of a consumer at the mouth piece, flowing of air from outside of the device along the second and third flow paths and mixing with the aerosolized substance in the cavity, and

releasing the resulting inhalable aerosol from the cavity along the first flow path into the mouth piece.

16. The electronic smoking device according to claim 13, wherein the second flow path is in a fluid connection to the outside of the device through a hole in the hull.

17. The electronic smoking device according to claim 12, wherein the porous material is a sintered material with a particle size of 1-20 micrometre.

18. The electronic smoking device according to claim 10, wherein the porous material is heatable by the heating element to a temperature of 200° C. to 290° C.

19. The electronic smoking device according to claim 9, wherein the high temperature resistance material comprises a metal and/or ceramic materials.