CN220109124U - Atomizer and electronic atomization device - Google Patents

Abstract

The embodiment of the utility model discloses an atomizer and an electronic atomization device, wherein the atomizer comprises: the liquid storage part comprises a side wall and a bottom wall, and the side wall and the bottom wall are enclosed to form a liquid storage cavity for containing liquid matrixes; the atomizing element comprises a liquid guide element and a heating element combined on the liquid guide element, the liquid guide element is provided with a liquid suction surface and an atomizing surface for sucking the liquid matrix, and the heating element is combined on the atomizing surface, so that aerosol generated by heating the liquid matrix by the heating element escapes from the atomizing surface; wherein, the drain hole that supplies liquid matrix to flow from the stock solution chamber to atomizing element is offered to the diapire, has the bead on the diapire deviates from the surface of stock solution chamber, and the bead encircles the drain hole, bead and imbibition face elasticity butt, and then provides sealedly between atomizing element and diapire. By the mode, the atomization element can be sealed without using a silica gel piece, and siloxane in the silica gel is prevented from migrating into the liquid guide element.

Description

Atomizer and electronic atomization device

[ field of technology ]

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

[ background Art ]

Conventional tobacco products (e.g., cigarettes, cigars, etc.) burn tobacco during use to produce tobacco smoke, and products exist in the prior art that release compounds upon heating without burning to replace these conventional tobacco products. Examples of such products are electronic nebulizing devices, which typically comprise a nebulizable liquid matrix which is heated to cause nebulization thereof, so as to produce an inhalable vapour or aerosol, which may comprise nicotine and/or a fragrance and/or an aerosol-generating substance (e.g. glycerol).

The above electronic atomizing device is provided with an atomizing element, which generally comprises a liquid guiding element for sucking up a liquid matrix and a heating element coupled to the liquid guiding element, and transmitting the liquid matrix to the heating element for heating and atomizing. To prevent leakage of the liquid matrix from the assembly gap when flowing to the liquid guiding element, the electronic atomizing device further comprises a sealing member made of silica gel or rubber material, which partially encloses the liquid guiding element to seal the assembly gap from leakage of the liquid matrix from the assembly gap.

However, when the sealing member wraps the liquid guiding element for a long time, the siloxane particles in the silicone member migrate into the pores of the liquid guiding element, so that the liquid guiding capability of the liquid guiding element is reduced, and the dry burning phenomenon of the electronic atomization device is easily caused.

[ utility model ]

The embodiment of the utility model provides an atomizer, which aims to solve the technical problem that siloxane in a traditional silica gel sealing element is easy to migrate into a liquid guide element, so that the liquid guide capacity of the liquid guide element is reduced.

An atomizer, comprising:

the liquid storage part comprises a side wall and a bottom wall, and the side wall and the bottom wall are enclosed to form a liquid storage cavity for containing liquid matrixes;

the atomizing element comprises a liquid guide element and a heating element combined with the liquid guide element, the liquid guide element is provided with a liquid suction surface and an atomizing surface for sucking the liquid matrix, and the heating element is combined with the atomizing surface, so that aerosol generated by heating the liquid matrix by the heating element escapes from the atomizing surface;

the liquid guide hole is formed in the bottom wall, liquid matrixes flow from the liquid storage cavity to the atomizing element, ribs are arranged on the surface, away from the liquid storage cavity, of the bottom wall, the ribs encircle the liquid guide hole, the ribs are elastically abutted to the liquid suction surface, and sealing is further provided between the atomizing element and the bottom wall.

In one embodiment, the ribs extend from the wall of the liquid guiding hole.

In one embodiment, the thickness of the bottom wall is less than the thickness of the side wall.

In one embodiment, the bottom wall has a thickness of 0.4mm to 0.5 mm.

In one embodiment, the rib is rectangular, and the spacing between each side of the rib and the side wall is substantially equal.

In one embodiment, the cross-sectional shape of the liquid transfer hole is substantially the same as the shape of the bottom wall, and the liquid transfer hole is substantially located at the center of the bottom wall.

In one embodiment, the bottom wall is provided with a through hole for communicating outside air with the liquid storage cavity, and the through hole is spaced from the liquid guide hole.

In one embodiment, the rib is provided with a notch for communicating external air with the liquid guide hole, and the notch is used for guiding the external air into the liquid storage cavity.

In one embodiment, the surface of the bottom wall extends along a direction away from the liquid storage cavity to form a plurality of limiting parts, and the limiting parts and the bottom wall define a limiting space for accommodating the liquid guide element.

The embodiment of the utility model also provides an electronic atomization device, which comprises the atomizer and a power supply mechanism for supplying electric energy to the atomizer.

According to the atomizer provided by the embodiment, the convex rib extends out of the bottom wall of the liquid storage part, when the liquid guide element is installed in the atomizer, the convex rib is elastically abutted against the liquid suction surface of the liquid guide element to realize sealing, so that the assembly gap between the liquid guide element and the bottom wall is sealed, and the liquid matrix is prevented from leaking out from the assembly gap between the liquid guide element and the bottom wall when flowing from the liquid storage cavity to the liquid guide element. In this way, sealing can be achieved without the use of a silicone seal, avoiding a decrease in the liquid-conducting capacity of the liquid-conducting element in the silicone migration in the silicone seal.

[ description of the drawings ]

One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which the figures of the drawings are not to scale, unless expressly stated otherwise.

Fig. 1 is a schematic perspective view of an atomizer in one direction according to an embodiment of the present utility model;

FIG. 2 is an exploded view of the atomizer of FIG. 1 at one viewing angle;

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

FIG. 4 is a schematic perspective view of the reservoir of the atomizer of FIG. 3 in one direction;

FIG. 5 is a schematic cross-sectional view of the atomizer of FIG. 3 in another direction;

fig. 6 is a schematic perspective view of an atomizing element of the atomizer of fig. 3 in one direction;

FIG. 7 is a schematic perspective view of the liquid storage portion in another direction in FIG. 4;

FIG. 8 is an enlarged schematic view in partial cross-section of the atomizer in one direction;

FIG. 9 is an enlarged partial schematic view of FIG. 7;

fig. 10 is a schematic structural diagram of an electronic atomization device according to an embodiment of the utility model.

[ detailed description ] of the utility model

In order that the utility model may be readily understood, a more particular description thereof will be rendered by reference to specific embodiments that are illustrated in the appended drawings. It will be understood that when an element is referred to as being "fixed" to/affixed to "another element, it can be directly on the other element or one or more intervening elements may be present therebetween. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or one or more intervening elements may be present therebetween. The terms "upper", "lower", "left", "right", "inner", "outer" and the like are used in this specification 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 utility model belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used in this specification 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 utility model described below can be combined with one another as long as they do not conflict with one another.

In the embodiment of the present utility model, the "mounting" includes welding, screwing, clamping, adhering, etc. to fix or limit a certain element or device to a specific position or place, where the element or device may be fixed at the specific position or place or may be movable within a limited range, and the element or device may be removable or not removable after being fixed at the specific position or place, which is not limited in the embodiment of the present utility model.

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

An embodiment of the present utility model provides an atomizer 100, as shown in fig. 1-3, the atomizer 100 includes a suction nozzle 10, a liquid storage portion 20, a base 30, an atomizing element 40, a first sealing member 50 and a second sealing member 60, wherein the suction nozzle 10 and the base 30 are respectively mounted at two ends of the liquid storage portion 20 to form a housing of the atomizer 100, and the atomizing element 40, the first sealing member 50 and the second sealing member 60 are all located in the housing.

As shown in fig. 4 and 5, the liquid storage part 20 is internally provided with an axially extending hollow cylinder structure 21, a hollow region 211 of the hollow cylinder structure 21 is used as a liquid storage cavity of the atomizer 100 for storing liquid matrixes such as atomized liquid medicine or electronic cigarette atomized liquid, and when the liquid medicine is stored in the liquid storage cavity 211, the atomizer 100 can be used as a medical atomizer for treating respiratory diseases; when the liquid storage cavity 211 stores the atomized liquid of the electronic cigarette, the atomizer 100 can be used as the electronic cigarette. The hollow cylinder structure 21 has a side wall 2111 and a bottom wall 2112, the side wall 2111 and the bottom wall 2112 are enclosed to form a liquid storage cavity 211, a liquid guiding hole 2113 for the liquid matrix to flow out of the liquid storage cavity 211 is formed on the bottom wall 2112, and the liquid matrix can flow to the atomizing element 40 to be atomized through the liquid guiding hole 2113 so as to generate aerosol.

The liquid storage portion 20 has a proximal end 22 and a distal end 23 opposite to each other, the proximal end 22 is formed with a liquid injection port 221 for injecting a liquid matrix into the liquid storage cavity 211, the proximal end 22 is further provided with the above-mentioned first sealing member 50, the first sealing member 50 is used for sealing the liquid injection port 221, and the base 30 extends into the liquid storage portion 20 at least partially through the opening of the distal end 23. The hollow cylinder structure 21 and the inner wall of the liquid storage portion 20 define a first airflow channel 24 and a second airflow channel 25, aerosol generated by the atomization of the liquid matrix by the atomization element 40 can flow into the suction nozzle 10 through the first airflow channel 24 and the second airflow channel 25, and a user can inhale the aerosol through the air outlet 11 of the suction nozzle 10.

As shown in fig. 3 and 6, the atomizing element 40 includes a liquid guiding element 41 and a heating element 42 combined on the liquid guiding element 41, the liquid guiding element 41 may be made of a hard capillary structure such as porous ceramic, porous glass, etc., and has a large number of micro-porous structures therein, the liquid guiding element 41 may be in a block structure in embodiments, but is not limited to, according to the usage situation, it includes a liquid absorbing surface 411 and an atomizing surface 412 which are oppositely arranged along the length direction of the atomizer 100, that is, the upper surface and the lower surface of the block-shaped liquid guiding element 41 in fig. 4, the liquid absorbing surface 411 faces the liquid guiding hole 2113 for absorbing the liquid substrate, the heating element 42 is combined on the atomizing surface 412 for heating the atomized liquid substrate, and the liquid substrate can flow to the liquid absorbing surface 411 through the liquid guiding hole 2113 and is conducted onto the atomizing surface 412 through the internal micro-porous structure of the liquid guiding element 41.

The heating element 42 is preferably formed on the atomizing surface 412 by mixing conductive raw material powder and a printing aid into a paste and then sintering the paste after printing a proper pattern, so that all or most of the surface of the heating element is tightly combined with the atomizing surface 412, and the heating element has the effects of high atomizing efficiency, less heat loss, dry burning prevention or great reduction of dry burning, etc. In some embodiments, the heating element 42 may take various other forms, for example, the heating element 42 may be a sheet-shaped heating element with a specific pattern combined on the atomizing surface 412, or other forms such as a heating net, a disk-shaped heating element formed by a heating wire spiral, a heating film, etc.; in some examples, the particular pattern may be a serpentine shape. In some embodiments, suitable materials for the heating element 42 include nickel, iron, stainless steel, nickel-iron alloy, nickel-chromium alloy, iron-chromium-aluminum alloy, or metallic titanium. Thus, when the liquid matrix is transferred to the atomizing surface 412, the heating element 42 of the atomizing surface 412 heats and atomizes the liquid matrix, and the aerosol generated after atomization is released from the atomizing surface 412.

As shown in fig. 3 and 5, an extension wall 2114 extends from the bottom wall 2112 in the longitudinal direction of the atomizer 100, and the extension wall 2114 and the bottom wall 2112 define a housing chamber 212, and the atomizing element 40 is housed in the housing chamber 212.

Further, as shown in fig. 2 and 3, the base 30 is provided with an air inlet 31 and an electrode hole, a conductive electrode 32 is inserted in the electrode hole, one end of the conductive electrode 32 is exposed outside the housing of the atomizer 100 so as to be electrically connected with a power supply mechanism used with the atomizer 100, and the other end extends to the atomizing surface 412 of the liquid guiding element 41 so as to be electrically connected with the heating element 42 of the atomizing surface 412, so that electric energy required for heating can be provided for the heating element 42 of the atomizer 100 by the power supply mechanism of the conductive electrode 32. It will be appreciated that the conductive electrode 32 comprises two electrode posts which serve as positive and negative poles for conducting current, the ends of the conductive electrode 32 abutting against the atomizing element 40 to support it for positioning in the housing chamber 212 as described above.

The second sealing member 60 is disposed around the outer wall of the base 30, so that the second sealing member 60 is extruded between the outer wall of the base 30 and the inner wall of the liquid storage portion 20, the second sealing member 60 can be made of materials such as silica gel or rubber, and sealing is provided between the outer wall of the base 30 and the inner wall of the liquid storage portion 20 through extrusion force, so as to ensure air tightness of the atomizer 100.

The air inlet hole 31 provides an air flow inlet for external air to enter the atomizer 100, and when the base 30 is installed in the liquid storage portion 20, an atomization chamber 413 is defined between the base 30 and the atomization surface 412 of the liquid guiding element 41, so that aerosol generated by heating the atomized liquid matrix by the atomization element 40 is released. When the user sucks, a negative pressure is generated in the atomizing chamber 413, so that external air is caused to flow into the atomizing chamber 413 through the air inlet 31, aerosol in the atomizing chamber 413 is carried into the first air flow channel 24 and the second air flow channel 25, then flows into the suction nozzle 10 through the first air flow channel 24 and the second air flow channel 25, finally, the aerosol escapes from the atomizer 100 through the air outlet 11 of the suction nozzle 10 for being sucked by the user, and an air path of the atomizer 100 is formed, as shown by an arrow route R in fig. 3.

Further, as shown in fig. 5 and 3, a rib 2115 extends from the surface of the bottom wall 2112 facing away from the liquid storage chamber 211, the rib 2115 is provided around the liquid guiding hole 2113, and when the liquid guiding member 41 is positioned in the housing chamber 212, the liquid absorbing surface 411 of the liquid guiding member 41 and the rib 2115 are elastically abutted, and thus an assembly gap between the liquid guiding member 41 and the bottom wall 2112 can be sealed by the elastic abutment, so that the liquid medium can only flow into the liquid guiding member 41 after flowing out from the liquid guiding hole 2113, but cannot leak from the assembly gap between the liquid guiding member 41 and the bottom wall 2112.

According to the embodiment, the sealing is realized by arranging the convex rib 2115 and elastically abutting the convex rib 2115 with the liquid absorbing surface 411 of the liquid guiding element 41, and the sealing of the assembly gap is realized by wrapping the liquid guiding element 41 without additionally arranging a sealing element made of silica gel or rubber, so that the silicone in the sealing element can be effectively prevented from migrating into the hole in the liquid guiding element 41, and the liquid guiding capability of the liquid guiding element 41 is further reduced.

In some embodiments, to provide improved resiliency to ribs 2115 and thus improved sealing when ribs 2115 are in resilient abutment with liquid absorbent surface 411, the thickness of bottom wall 2112 is relatively thin, and a relatively thin bottom wall 2112 facilitates improved resiliency to ribs 2115, preferably, a suitable bottom wall 2112 thickness is in the range of 0.4mm to 0.5 mm. In addition, as shown in fig. 3 and 4, the side wall 2111 of the liquid storage chamber 211 is formed to extend from the inner wall of the liquid storage portion 20, and in order to secure the rigidity of the connection between the side wall 2111 and the inner wall of the liquid storage portion 20, the side wall 2111 needs to have a certain thickness, that is, the thickness of the bottom wall 2112 is smaller than the thickness of the side wall 2111.

In some embodiments, as shown in fig. 5 and 7, when the liquid guiding element 41 is assembled in the accommodating chamber 212, the liquid guiding element 41 applies a pressing force to the rib 2115 so that the rib 2115 deforms, and at the same time, the rib 2115 applies a reverse pressing force to the liquid guiding element 41 under a deformation restoring force, so as to reduce the reverse pressing force applied to the liquid guiding element 41 by the rib 2115, and avoid damage to the liquid guiding element 41 caused by overlarge reverse pressing force, the rib 2115 is configured to be formed by extending from the bottom wall 2112 along the wall of the liquid guiding hole 2113, and therefore, when the rib 2115 is pressed by the liquid guiding element 41, the reverse pressing force generated by the rib 2115 is not overlarge.

In some embodiments, ribs 2115 may not extend along the wall of liquid conduction hole 2113, for example, ribs 2115 are disposed around the periphery of liquid conduction hole 2113 and surround liquid conduction hole 2113.

In some embodiments, as shown in FIG. 7, the shape of the liquid conduction hole 2113 and the shape of the bottom wall 2112 are substantially the same, and the liquid conduction hole 2113 is substantially centered on the bottom wall 2112, that is, such that the liquid conduction hole 2113 occupies a position centered on the bottom wall 2112, such that the boundary of the bottom wall 2112 and the boundary of the liquid conduction hole 2113 are substantially the same in the distance D in the four directions D1, D2, D3, and D4 as shown in FIG. 7, and such that the reverse pressing force applied by the rib 2115 to the liquid conduction element 41 in the four directions D1, D2, D3, and D4 is substantially the same, so as to uniformly stress the liquid conduction element 41 as a whole. That is, the shape of the ribs 2115 may be rectangular as shown in fig. 7, and the spacing between each side of the ribs 2115 and the side wall 2111 is substantially equal.

As the liquid matrix in the liquid storage cavity 211 gradually dissipates due to the suction of the user, a negative pressure is generated in the liquid storage cavity 211, and the negative pressure can cause the liquid matrix in the liquid storage cavity 211 to flow to the atomizing element 40 to be atomized, so that the atomizing element 40 generates dry combustion, and therefore, an air channel for guiding external air into the liquid storage cavity 211 is also generally provided in the atomizer 100 to relieve the negative pressure in the liquid storage cavity 211.

Specifically, as shown in fig. 8, a through hole 2116 as the above-mentioned air passage is provided in the bottom wall 2112, one end of the through hole 2116 communicates into the liquid storage chamber 211, and the other end communicates with the air inlet 31, so that outside air can enter into the liquid storage chamber 211 through the through hole 2116. And the through hole 2116 and the liquid guiding hole 2113 are arranged at intervals, so that bubbles formed when external air enters the liquid storage cavity 211 through the through hole 2116 can be prevented from being accumulated in the liquid guiding hole 2116, and further the liquid matrix of the liquid storage cavity 211 cannot smoothly flow to the atomizing element 40.

Alternatively, as shown in fig. 9, the rib 2115 is provided with a notch 2117, one end of the notch 2117 is connected to the liquid guiding hole 2113, and the other end is connected to the air inlet 31, so that external air can enter the liquid guiding hole 2113 through the notch 2117, and then enter the liquid storage cavity 211 through the liquid guiding hole 2113.

In some embodiments, as shown in fig. 7, a plurality of limiting portions 2118 extend from the surface of the bottom wall 2112 in a direction away from the liquid storage cavity 211, the plurality of limiting portions 2118 are distributed in different orientations, and the plurality of limiting portions 2118 and the bottom wall 2112 define a limiting space for accommodating the liquid guiding element 41 and limiting the liquid guiding element 41, so as to prevent the liquid guiding element 41 from moving after being mounted on the atomizer 100, and further prevent the conductive electrode 33 from being aligned with the heating element 42.

An embodiment of the present utility model further provides an electronic atomization device, as shown in fig. 10, where the electronic atomization device includes the atomizer 100 and the power supply mechanism 200 electrically connected to the atomizer 100 in the foregoing embodiment, and the power supply mechanism 200 may be detachably connected to the atomizer 100 or may be non-detachably connected to the atomizer 100, and if the electronic atomization device is in the non-detachable connection mode, the electronic atomization device may be configured into an integral form, and a user may discard the electronic atomization device after the consumption of the liquid matrix in the electronic atomization device is completed. In the case of a detachable connection, the power supply mechanism 200 may be reusable, the atomizer 100 may be replaced, and after the liquid matrix in the atomizer 100 is consumed, a user may connect a new atomizer 100 to the power supply mechanism 200, in such a way that the user may replace the atomizer 100 with a different flavored liquid matrix. In an exemplary embodiment, the atomizer 100 and the power supply mechanism 200 may be detachably connected by a magnetic connection, which may give the 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 and the power supply mechanism 200 are connected, the electrical connection terminal 210 is in contact with the conductive electrode 32 of the atomizer 100, so that the battery cell 230 of the power supply mechanism 200 can provide electric energy for the atomizer 100 through the electrical connection terminal 210, and the atomizer 100 can heat the liquid matrix to generate aerosol for sucking after obtaining the electric energy. In addition, the power supply mechanism 200 further has an air inlet hole (not shown) for allowing external air to enter the electronic atomization device, when the user uses the electronic atomization device to perform suction, negative pressure is generated inside the electronic atomization device, the air flow sensor 240 senses internal air pressure and generates a sensing signal, the sensing signal is sent to the controller on the main board 220, the controller controls the electric core 230 to provide electric energy to the atomizer 100, the atomizer 100 starts to heat and atomize the liquid matrix to generate aerosol after obtaining the electric energy, meanwhile, the external air flows into the atomizer 100 from the power supply mechanism 200 and carries the aerosol generated by the atomizer 100 to escape the electronic atomization device, and the user can suck the escaped aerosol.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; the technical features of the above embodiments or in the different embodiments may also be combined within the idea of the utility model, the steps may be implemented in any order, and there are many other variations of the different aspects of the utility model as described above, which are not provided in detail for the sake of brevity; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims (10)

1. An atomizer, comprising:

the liquid storage part comprises a side wall and a bottom wall, and the side wall and the bottom wall are enclosed to form a liquid storage cavity for containing liquid matrixes;

the atomizing element comprises a liquid guide element and a heating element combined with the liquid guide element, the liquid guide element is provided with a liquid suction surface and an atomizing surface for sucking the liquid matrix, and the heating element is combined with the atomizing surface, so that aerosol generated by heating the liquid matrix by the heating element escapes from the atomizing surface;

the liquid guide hole is formed in the bottom wall, liquid matrixes flow from the liquid storage cavity to the atomizing element, ribs are arranged on the surface, away from the liquid storage cavity, of the bottom wall, the ribs encircle the liquid guide hole, the ribs are elastically abutted to the liquid suction surface, and sealing is further provided between the atomizing element and the bottom wall.

2. The atomizer of claim 1 wherein said ribs extend from the wall of said liquid transfer orifice.

3. The nebulizer of claim 1, wherein a thickness of the bottom wall is less than a thickness of the side wall.

4. A nebulizer as claimed in claim 3, wherein the bottom wall has a thickness of 0.4mm to 0.5 mm.

5. The atomizer of claim 1 wherein said ribs are rectangular, and wherein the spacing between each side of said ribs and said side wall is substantially equal.

6. The atomizer according to claim 1, wherein the cross-sectional shape of the liquid guiding hole is substantially identical to the shape of the bottom wall and the liquid guiding hole is located in the center of the bottom wall.

7. The atomizer of claim 1 wherein said bottom wall defines a through hole communicating external air with said reservoir, said through hole being spaced from said liquid guide hole.

8. The atomizer of claim 1 wherein said ribs are provided with notches communicating external air with said liquid transfer holes, said notches being adapted to direct external air into said liquid storage chamber.

9. The atomizer of claim 1 wherein a surface of said bottom wall extends in a direction away from said reservoir, said plurality of limiting portions and said bottom wall defining a limiting space for receiving said liquid directing element.

10. An electronic atomising device comprising an atomiser according to any one of claims 1 to 9 and a power supply mechanism for supplying electrical energy to the atomiser.