CN218737241U - Atomizer and electronic atomization device - Google Patents

Abstract

The embodiment of the application discloses atomizer and electronic atomization device, the atomizer includes: a reservoir chamber for storing a liquid substrate; an atomizing element comprising a porous element for delivering the liquid substrate and a heating element for atomizing the liquid substrate to produce an aerosol; the air channel pipe is used for transmitting aerosol, the air channel pipe extends in the liquid storage cavity along the length direction of the atomizer, and the atomizing element is arranged in the pipeline of the air channel pipe; an annular air directing element surrounding at least a portion of the outer surface of the porous element; the atomizer is provided with an air inlet for allowing external air to enter the atomizer, the pipe wall of the air channel pipe is provided with a liquid guide through hole communicated with the liquid storage cavity, the air guide element and the inner wall of the air channel pipe define an air channel communicated with fluid of the air inlet, and the air channel is communicated with the liquid storage cavity through the liquid guide through hole. Through the mode, the independent air channel is arranged in the atomizer, so that the external air can flow into the liquid storage cavity quickly.

Description

Atomizer and electronic atomization device

[ technical field ] A method for producing a semiconductor device

The embodiment of the application relates to the technical field of atomization, in particular to an atomizer and an electronic atomization device.

[ background of the invention ]

Known electronic atomizer devices generally include a cylindrical porous ceramic body having a large number of micropores therein for sucking and conducting an atomized liquid of the electronic atomizer device, and a heating element is provided on an inner surface of the porous ceramic body for heating and atomizing the sucked atomized liquid. The micropores in the porous element are used as a channel for the atomized liquid to flow to the atomization surface in an infiltrating manner, and are used as an air exchange channel for supplying air to the liquid storage cavity from the outside after the atomized liquid in the liquid storage cavity is consumed to maintain the air pressure balance in the liquid storage cavity, so that the air pressure balance of the liquid storage cavity is maintained.

To above known electronic atomization device, when the atomizing liquid along with inside stock solution chamber consumes, become negative pressure state in the stock solution intracavity gradually to prevent to a certain extent that the fluid transfer makes the atomizing liquid reduce to transmit to the vaporization on the atomizing face through the micropore passageway of porous ceramic body. In particular, in the continuous suction using state of the known electronic atomization device, air outside the liquid storage cavity is difficult to enter the liquid storage cavity through the micropore channels of the porous ceramic body in a short time, so that the speed of transmitting the atomized liquid to the atomization surface is reduced. When the atomized liquid supplied to the heating element is insufficient, the temperature of the heating element becomes too high, and the components of the atomized liquid are decomposed and volatilized to generate harmful substances such as formaldehyde.

[ Utility model ] content

The embodiment of the application provides an atomizer to design an independent air duct in the atomizer, make during the quick flow direction stock solution chamber of outside air, alleviate the negative pressure in the stock solution chamber.

An atomizer, comprising:

a reservoir chamber for storing a liquid substrate;

an atomizing element comprising a porous element for delivering the liquid substrate and a heating element for atomizing the liquid substrate to produce an aerosol;

the air channel pipe is used for transmitting aerosol, the air channel pipe extends into the liquid storage cavity along the length direction of the atomizer, and the atomizing element is arranged in a pipeline of the air channel pipe;

an annular air-directing element surrounding at least a portion of an outer surface of the porous element;

wherein, the atomizer has the air inlet that supplies outside air to get into the atomizer, the pipe wall of gas channel pipe is equipped with the intercommunication the drain through-hole in stock solution chamber, air guide element with the inner wall of gas channel pipe is defined be formed with the air channel of air inlet fluid intercommunication, air channel passes through the drain through-hole with stock solution chamber fluid intercommunication.

In one embodiment, the material of the air guiding element comprises any one of metal, ceramic or glass.

In one embodiment, the air-guiding element is integrally formed with the porous element by sintering.

In one embodiment, the porous element has a first section and a second section disposed opposite to each other, and a third section located between the first section and the second section, the first section and the second section each having a cross-sectional outer diameter smaller than a cross-sectional outer diameter of the third section, the atomizer further comprising a seal surrounding the first section and the second section.

In one embodiment, the first section and the second section are distributed on two sides of the liquid guide through hole.

In one embodiment, the seal comprises silicone or rubber.

In one embodiment, the surface of the air-guiding element is formed with a groove that defines with the inner wall of the airway tube the air channel.

In one embodiment, the grooves are configured in a non-linear shape.

In one embodiment, the shape of the groove comprises a spiral.

In one embodiment, the groove has a V-shaped cross-section.

The embodiment of the application also provides an electronic atomization device, which comprises the atomizer and a power supply mechanism, wherein the atomizer is used for providing electric energy for the atomizer.

The atomizer provided by the above embodiment has the atomizing element of the porous element, the air guide element is surrounded on the outer surface of the porous element, and the air channel is defined and formed between the air guide element and the inner wall of the air channel pipe, so that the outside flows into the liquid storage cavity through the independent air channel, the negative pressure in the liquid storage cavity is relieved, the air pressure balance in the liquid storage cavity is maintained, and the liquid substrate can smoothly flow onto the atomizing element for atomization under the condition of continuous suction by a user.

[ description of the drawings ]

One or more embodiments are illustrated in drawings corresponding to, and not limiting to, the embodiments, in which elements having the same reference number designation may be represented as similar elements, unless specifically noted, the drawings in the figures are not to scale.

Fig. 1 is a schematic perspective view of an atomizer provided in an embodiment of the present application in one direction;

FIG. 2 is a schematic cross-sectional view of the atomizer of FIG. 1 in one direction;

FIG. 3 is a schematic cross-sectional view of the atomizing element of the atomizer of FIG. 1 in one direction;

FIG. 4 is a perspective view of the base of the atomizer of FIG. 1 in one orientation;

FIG. 5 is a schematic perspective view of the air directing element of the atomizer of FIG. 1 in one direction;

FIG. 6 is a schematic cross-sectional view of the air-guiding component of FIG. 5 in one direction;

FIG. 7 is a schematic perspective view of the porous element of the atomizing element of FIG. 4 in one direction;

fig. 8 is a schematic structural diagram of an electronic atomization device according to an embodiment of the present disclosure;

[ detailed description ] embodiments

To facilitate an understanding of the present application, the present application is described in more detail below with reference to the figures and the detailed description. It should be noted that when an element is referred to as being "fixed to" or "affixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. The terms "upper", "lower", "left", "right", "inner", "outer" and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

In addition, the technical features mentioned in the different embodiments of the present application described below may be combined with each other as long as they do not conflict with each other.

In the embodiment of the present application, the "installation" includes fixing or limiting a certain element or device to a specific position or place by welding, screwing, clipping, adhering, etc., the element or device may be fixed or movable in a limited range in the specific position or place, and the element or device may or may not be detachable after being fixed or limited to the specific position or place, which is not limited in the embodiment of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

An embodiment of the present application provides an atomizer 100, the atomizer 100 is used for atomizing a liquid substrate to generate an aerosol for a user to inhale, as shown in fig. 1-2, the atomizer 100 includes a suction nozzle 10, a liquid storage portion 20 and a base 30, two ends of the liquid storage portion 20 are open, and the suction nozzle 10 and the base 30 are respectively installed on the liquid storage portion 20 through two open ends of the liquid storage portion 20.

As shown in fig. 2, the liquid storage part 20 is hollow to form a hollow area 21, the hollow area 21 is used as a liquid storage cavity of the atomizer 100, and the liquid storage cavity 21 is used for storing the liquid matrix of the atomizer 100. In some alternative examples, the liquid matrix comprises functional ingredients such as natural plant extracts or synthetic compounds that can be volatilized to be incorporated into the aerosol. An air channel pipe 22 extends in the liquid storage cavity 21 along the length direction of the atomizer 100, and the air channel pipe 22 is used for transmitting aerosol generated after atomization. The air channel pipe 22 extends into the suction nozzle 10, meanwhile, the suction nozzle 10 is provided with an air flow channel 11 and an air outlet 12 which are communicated with the air channel pipe 22, the air channel pipe 22 transmits aerosol into the suction nozzle 10 and the aerosol flows to the air outlet 12 through the air flow channel 11 of the suction nozzle 10, and a user can suck the aerosol at the air outlet 12.

Referring to fig. 2, the wall of the air channel tube 22 is provided with a liquid guiding through hole 221, and the liquid guiding through hole 221 is communicated with the liquid storage cavity 21, so that the liquid matrix in the liquid storage cavity 21 can flow into the tube of the air channel tube 22 through the through hole 221. Meanwhile, an atomizing element is arranged in the pipeline of the air channel pipe 22, and is used for sucking the liquid substrate flowing through the liquid guide through hole 221 and heating and atomizing the liquid substrate to generate aerosol.

Specifically, as shown in fig. 3, the atomizing element includes a porous element 41 and a heating element 42 coupled to the porous element 41, the porous element 41 may be made of a hard capillary structure such as porous ceramic, porous glass, etc., and has a large amount of micro-porous structures inside, and the porous element 41 may be, in an embodiment, a substantially cylindrical structure. The porous element 41 is provided with a hollow area 43 axially penetrating through the porous element 41, so that the outer surface 411 of the porous element 41 serves as a liquid absorbing surface for absorbing the liquid matrix flowing through the liquid guiding through hole 221, the inner surface 412 in the hollow area 43 serves as an atomizing surface for atomizing the liquid matrix, the heating element 42 is combined with the atomizing surface 412 for heating the atomized liquid matrix, after the liquid absorbing surface 411 absorbs the liquid matrix, the liquid matrix is conducted to the atomizing surface 412 through a micropore structure inside the porous element 41 for atomizing, and aerosol generated after atomizing is released into the hollow area 43, so that the hollow area 43 can serve as an atomizing chamber of the atomizer 100.

The heating element 42 is preferably formed on the atomization surface 412 in a suitable pattern-printing and sintering manner after mixing the conductive raw material powder and the printing aid into a paste, so that all or most of the surface of the heating element is tightly combined with the atomization surface 412, and the heating element has the effects of high atomization efficiency, low heat loss, dry burning prevention or great dry burning reduction and the like. In some embodiments, the heating element 42 may take various structural forms, and the heating element 42 may be a sheet-shaped heating element formed with a specific pattern and combined on the atomization surface 412, or other forms such as a heating net, a disk-shaped heating element formed by a spiral heating wire, a heating film, etc.; for example, the particular pattern may be a serpentine shape. Suitable materials for the heating element 42 in some embodiments may be nickel, iron, stainless steel, nickel-iron alloy, nickel-chromium alloy, iron-chromium-aluminum alloy, or metallic titanium. Therefore, when the liquid substrate flows onto the atomizing surface 412, the heating element 42 of the atomizing surface 412 can heat and atomize the liquid substrate, and release the aerosol generated by the atomization from the atomizing surface 412 into the atomizing chamber 43.

As shown in fig. 4 and referring to fig. 2, the base 30 is provided with an air inlet 31 for allowing external air to enter the atomizer 100, when a user sucks on the suction nozzle 10, negative pressure is generated inside the atomizer 100, the external air enters the atomizer 100 through the air inlet 31, flows to the atomizing chamber 43 through the base 30, then carries a aerosol released in the atomizing chamber 43 and flows to the suction nozzle 10, and the user can suck the aerosol on the suction nozzle 10, so that a complete air flow channel of the atomizer 100 is formed.

The base 30 further has an electrode formed thereon for electrically connecting with a power mechanism associated with the atomizer 100, wherein when the power mechanism is coupled to the atomizer 100, the power mechanism is electrically connected to the atomizer electrode to provide power to the atomizer 100, thereby causing the atomizing element to heat the atomized liquid substrate. Specifically, as shown in fig. 4, the base 30 includes a threaded electrode 32 and a central electrode 33, either of which may serve as a positive electrode or a negative electrode. When the power supply mechanism is connected with the atomizer 100, the power supply mechanism supplies power to the atomizer 100 through the threaded electrode 32 and the central electrode 33, and the heating element 42 comprises an electrode pin 421, wherein the electrode pin 421 is electrically connected with the threaded electrode and the central electrode 33, so that the power supply mechanism supplies power to the heating element 42 of the atomizer 100.

With continuing reference to fig. 2 and with further reference to fig. 5, an air guiding element 50 is disposed between the outer surface of the porous element 41 and the inner surface of the air channel tube 22, and the air guiding element 50 is configured in a ring shape such that the air guiding element 50 surrounds the outer surface of the porous element 41, such that the air guiding element 50 is disposed between the inner surface of the air channel tube 22 and the outer surface of the porous element 41.

The air guide member 50 provides a seal between the outer surface of the porous member 41 and the inner wall of the air passage tube 22 on the one hand, and prevents the liquid medium in the reservoir chamber 21 from leaking out of the atomizer 100 through the fitting gap between the outer surface of the porous member 41 and the inner wall of the air passage tube 22 and further through the air inlet 31 of the base 30. On the other hand, an air channel is defined between the air guiding element 50 and the inner wall of the air duct 22, and the air channel is communicated with the air inlet 31 and the liquid guiding through hole 221, so that after the external air enters the atomizer through the air inlet 31, a part of the air enters the atomizing chamber 43 to carry the aerosol to the air outlet 12 of the suction nozzle 10; the other part of air flows to the liquid guide through hole 221 through the air channel, and then flows into the liquid storage cavity 21 through the liquid guide through hole 221, so that the air is supplemented to the liquid storage cavity 21, the air pressure balance in the liquid storage cavity 21 is maintained, and the negative pressure in the liquid storage cavity 21 is relieved. Through this air passage, the nebulizer 100 has an independent air passage for supplying air to the liquid storage chamber 21, and air can be quickly supplied to the liquid storage chamber 21 when the user continues to aspirate.

In some embodiments, the air-directing element 50 is integrally formed with the porous element 41, while the air-directing element 50 is in interference fit with the inner wall of the airway tube 22, thereby providing a seal between the outer surface of the porous element 41 and the inner wall of the airway tube 22 that prevents leakage of the liquid matrix through the fit gap between the outer surface of the porous element 41 and the inner wall of the airway tube 22.

In some embodiments, the material of the air-guiding member 50 may include any one of metal, ceramic, or glass, and is integrally formed with the porous member 41 by sintering to form a seal with the porous member 41. Of course, in other embodiments, the air guiding element 50 and the porous element 41 may not be integrally formed, for example, a flexible element such as silicone or rubber may be provided between the air guiding element 50 and the porous element 41, and the sealing between the air guiding element 50 and the porous element 41 may be achieved by the flexible element.

In some embodiments, as shown in fig. 5, the air-guiding element 50 is provided with a groove 51, the groove 51 and the inner wall of the air duct 22 defining the air passage described above. Of course, in other embodiments, the groove 51 may be formed on the inner wall of the air passage tube 22 such that the groove 51 and the outer surface of the air guide member 50 define the air passage.

In some embodiments, with continued reference to fig. 5, the recess 51 is non-linear, i.e., the air channel is non-linear. Since the air passage is directly communicated to the liquid storage chamber 21, although the size of the air passage is very small, the size of the air passage is set so that gas can smoothly pass through the air passage, and the liquid substrate in the liquid storage chamber 21 is difficult to leak through the air passage. However, with long-term use of the atomizer 100, there is still a possibility that the liquid substrate leaks through the air passage, and therefore, by designing the air passage to be non-linear, the probability of leakage of the liquid substrate can be effectively reduced. In an exemplary embodiment, as shown in fig. 5, the groove 51 is shaped as a spiral, and the spiral groove 51 may extend the distance of the air channel, thereby further reducing the probability of leakage of the liquid matrix. It will be readily appreciated that in other embodiments, the shape of the recess 51 may also be "S" or "Z" shaped. To facilitate machining of the groove 51, in some embodiments, the groove 51 is designed to have a V-shaped cross-section, as shown in fig. 6.

In some embodiments, as shown in fig. 7, the porous element 41 has a first section 413 and a second section 414 disposed opposite each other along its length, and a third section 415 located between the first section 413 and the second section 414, the first section 413 and the second section 414 having a cross-sectional outer diameter smaller than a cross-sectional outer diameter of the third section 415, such that the third section 415 is convex with respect to the first section 413 and the second section 414. The liquid guiding through hole 221 and the third section 415 are disposed opposite to each other, so that the liquid matrix in the liquid storage chamber 21 can be sucked by the third section 415 of the porous element 41 after flowing through the liquid guiding through hole 221, and then transferred to the atomizing surface 412 through the inner micropores of the porous element 41 for heating and atomizing.

With continued reference to FIG. 2, because the first segment 413 and the second segment 414 have cross-sectional outer diameters that are smaller than the cross-sectional outer diameter of the third segment 415, the first segment 413 and the second segment 414 maintain a gap with the inner wall of the air passage tube 22, and the gap is used for placing the air guide element 50 and the sealing member 60. That is, the air guide member 50 is used to provide a seal between the first section 413 and the inner wall of the air passage pipe 22, and the sealing member 60 is used to provide a gap between the second section 414 and the inner wall of the air passage pipe 22, so that both ends of the porous member 41 can be sealed by the air guide member 50 and the sealing member 60, preventing the liquid matrix in the reservoir chamber 21 from leaking through the gap between the first section 413 and the inner wall of the air passage pipe 221, and the gap between the second section 414 and the inner wall of the air passage pipe 22. It should be noted that the material of the sealing element 60 may be any one of soft materials such as silicone, rubber or natural rubber, and the sealing element 60 is disposed around the second section 414 and compressed between the outer wall of the second section 414 and the inner wall of the air duct 22, and the soft material of the sealing element 60 can achieve sealing under the compression force due to the aforementioned soft material.

In some embodiments, referring to fig. 2, in order to make the porous element 41 absorb enough liquid substrate, the first section 413 and the second section 414 are distributed on two sides of the liquid guiding through hole 221, so that a portion of the porous element 41 completely covers the liquid guiding through hole 221, that is, the liquid substrate can be completely absorbed by the porous element 41 after passing through the liquid guiding through hole 221, and thus the liquid substrate is atomized more toward the atomizing surface 412, and the aerosol released after atomization is stronger, which can effectively improve the smoking taste of the user.

In addition, as shown in fig. 2, the first section 413 is located below the liquid guiding through hole 221, the second section 414 is located above the liquid guiding through hole 221, and the air guiding element 50 is disposed around the first section 413, and since the first section 413 is located below the liquid guiding through hole 221, an air channel defined by the air guiding element 50 and the inner wall of the air channel tube 22 can be close to the liquid guiding through hole 221, so as to facilitate the rapid entry of the supplemented air into the liquid storage chamber 21.

An embodiment of the present application further provides an electronic atomization device, as shown in fig. 8, the electronic atomization device includes the atomizer 100 and the power supply mechanism 200 electrically connected to the atomizer 100, the power supply mechanism 200 and the atomizer 100 may be detachably connected or non-detachably connected, if the power supply mechanism 200 and the atomizer 100 are non-detachably connected, the electronic atomization device may be configured as an integral structure, and when the consumption of the liquid substrate in the electronic atomization device is completed, the electronic atomization device may be discarded by a user. If the connection is detachable, the power mechanism 200 can be reused and the atomizer 100 can be replaced, and after the liquid medium in the atomizer 100 is consumed, the user can connect a new atomizer 100 to the power mechanism 200, and in this way, the user can replace the atomizers 100 with liquid medium of different tastes. In an exemplary embodiment, the nebulizer 100 and the power mechanism 200 can be detachably connected through a magnetic connection, which can give a user a better use experience.

The power supply mechanism 200 is provided with a battery cell 230, a main board 220 electrically connected with the battery cell 230, an airflow sensor 240 electrically connected with the main board 220, and an electrical connection terminal 210 electrically connected with the main board 220, when the atomizer 100 is in threaded connection with the power supply mechanism 200, the electrical connection terminal 210 is in contact with the threaded electrode 32 and the central electrode 33 of the atomizer 100, so that the battery cell 230 of the power supply mechanism 200 can provide electric energy to the atomizer 100 through the electrical connection terminal 210, and the atomizer 100 can heat the liquid substrate to generate aerosol for inhalation after obtaining the electric energy. When the user uses electronic atomization device to aspirate, the inside negative pressure that produces of electronic atomization device, airflow sensor 240 senses inside atmospheric pressure and produces inductive signal, this inductive signal sends the controller on mainboard 220, the controller controls electric core 230 promptly and provides the electric energy to atomizer 100, atomizer 100 begins to heat and atomizes liquid matrix and produce the aerosol after obtaining the electric energy, outside air flows to atomizer 100 by electrical power generating mechanism 200 simultaneously in, and carry the aerosol that atomizer 100 produced and escape electronic atomization device, the user can inhale this aerosol that escapes.

It should be noted that in some other embodiments, the connection manner of the atomizer 100 and the power supply mechanism 200 is not limited to the threaded connection, and other manners may be adopted to realize the detachable connection. For example, the atomizer 100 and the power supply mechanism 200 may be connected by a magnetic attraction manner, a magnetic member (not shown) is disposed in the power supply mechanism 200, a metal conductive member (not shown) capable of being magnetized is disposed in the atomizer 100, the metal conductive member may be magnetized by the magnetic member of the power supply mechanism 200 to be magnetically attracted to the power supply mechanism 200, and may be in contact with the electrical connection terminal 210 of the power supply mechanism 200 to be electrically conducted, and the electrode pin 421 of the heating element 42 is electrically connected to the metal conductive member, so that the power supply mechanism 200 may provide the heating element 42 with electric energy required for heating and atomizing.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; within the context of the present application, where technical features in the above embodiments or in different embodiments can also be combined, the steps can be implemented in any order and there are many other variations of the different aspects of the present application as described above, which are not provided in detail for the sake of brevity; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims (11)

1. An atomizer, comprising:

a reservoir chamber for storing a liquid substrate;

an atomizing element comprising a porous element for delivering the liquid substrate and a heating element for atomizing the liquid substrate to produce an aerosol;

the air channel pipe is used for transmitting aerosol, the air channel pipe extends into the liquid storage cavity along the length direction of the atomizer, and the atomizing element is arranged in a pipeline of the air channel pipe;

an annular air directing element surrounding at least a portion of an outer surface of the porous element;

wherein, the atomizer has the air inlet that supplies outside air to get into the atomizer, the pipe wall of air duct pipe is equipped with the intercommunication the drain through-hole in stock solution chamber, air guide component with the inner wall of air duct pipe defines form with the air channel of air inlet fluid intercommunication, air channel passes through the drain through-hole with stock solution chamber fluid intercommunication.

2. The atomizer of claim 1, wherein said air-directing member comprises any one of a metal, a ceramic, or a glass.

3. A nebulizer as claimed in claim 1, wherein the air guiding element is integrally formed with the porous element by sintering.

4. The nebulizer of claim 1, wherein the porous element has a first section and a second section disposed opposite one another, and a third section disposed between the first section and the second section, the first section and the second section each having a cross-sectional outer diameter smaller than a cross-sectional outer diameter of the third section, the nebulizer further comprising a seal, the air directing element surrounding the first section, the seal surrounding the second section.

5. The nebulizer of claim 4, wherein the first section and the second section are distributed on both sides of the liquid guiding through hole.

6. A nebulizer as claimed in claim 4, wherein the seal comprises silicone or rubber.

7. A nebulizer as claimed in claim 1, wherein the surface of the air guiding element is formed with a groove which delimits with the inner wall of the airway tube the air passage.

8. The nebulizer of claim 7, wherein the grooves are configured in a non-linear shape.

9. The nebulizer of claim 8, wherein the shape of the groove comprises a spiral.

10. A nebulizer as claimed in claim 7, wherein the cross-sectional shape of the recess is V-shaped.

11. An electronic atomisation device comprising an atomiser as claimed in any of claims 1 to 10 and a power supply mechanism for supplying electrical power to the atomiser.

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