CN221307251U - Atomizer and electronic atomization device - Google Patents

Abstract

The utility model discloses an atomizer and an electronic atomization device. The atomizer comprises a shell, a liquid guide piece and an atomizing element. The shell is internally provided with a liquid storage cavity for storing liquid matrixes; the liquid guide piece is arranged in the shell and defines part of the boundary of the liquid storage cavity, and is provided with a containing cavity and a liquid discharging channel; the atomizing element comprises a porous matrix which is arranged in the accommodating cavity and is provided with a liquid absorption surface for receiving the liquid matrix, and the liquid absorption surface is in fluid communication with the liquid discharging channel. The liquid guide piece is provided with an air guide channel which is communicated with the outside air and the liquid discharging channel and is used for providing a path for air to enter the liquid discharging channel; the inner wall surface of the liquid guide member defining the lower liquid passage is provided with a bubble guide groove extending toward the liquid storage cavity.

Description

Atomizer and electronic atomization device

Technical Field

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

Background

Smoking articles (e.g., cigarettes, cigars, etc.) burn tobacco during use to produce tobacco smoke. Attempts have been made to replace these tobacco-burning products by making products that release the compounds without burning. Examples of such products are electronic nebulizing devices, which generally comprise a power supply mechanism and a nebulizer, the power supply mechanism being electrically connected to the nebulizer for supplying power to the nebulizer. Nebulizers generally comprise a nebulizable liquid matrix and a porous ceramic body with a large number of micropores inside, which absorbs the liquid matrix and which is provided with a heating element for heating the liquid matrix for nebulization to generate aerosols.

The micropores in such porous ceramic bodies may also act as air channels. As the user sucks, the liquid matrix in the liquid storage cavity is continuously consumed, and air is required to enter the liquid storage cavity from the outside to maintain the air pressure balance between the inside and the outside of the liquid storage cavity, so that the situation that the liquid matrix cannot be supplied to the inside of the porous ceramic body due to excessive negative pressure in the liquid storage cavity is prevented. At present, when a user sucks, external air enters the liquid storage cavity through the air guide channel, and generated bubbles are easily accumulated on a liquid inlet near the porous ceramic body due to gas-liquid exchange, so that the porous ceramic body cannot smoothly adsorb a liquid matrix, and the problem of local overheating of a heating element caused by insufficient liquid supply of the porous ceramic body is caused, and the user experience is affected.

Disclosure of utility model

According to the technical problems, the embodiment of the application provides the atomizer and the electronic atomization device, and the ventilation structure with the guide groove is used for solving the technical problems that bubbles are easy to gather on the liquid suction surface of the atomization element during ventilation of the atomizer, so that the heating element is locally overheated caused by insufficient liquid supply of the porous ceramic body.

An atomizer, comprising: a housing having a reservoir therein for storing a liquid matrix; the liquid guide piece is arranged in the shell and defines part of the boundary of the liquid storage cavity, and the liquid guide piece is provided with a containing cavity and a liquid discharging channel; the atomizing element comprises a porous matrix, the porous matrix is arranged in the accommodating cavity, the porous matrix is provided with a liquid suction surface for receiving the liquid matrix, and the liquid suction surface is in fluid communication with the liquid discharging channel; the liquid guide piece is provided with an air guide channel which is communicated with outside air and the liquid discharging channel and is used for providing a path for air to enter the liquid discharging channel; the inner wall surface of the liquid guide member defining the liquid discharge passage is provided with a bubble guide groove extending toward the liquid storage chamber.

In one embodiment, the air guide channel comprises a groove formed on a surface of the liquid guide contacting the atomizing element.

In one embodiment, the atomizing element further comprises an atomizing surface arranged on the porous substrate along the transverse direction of the atomizer and opposite to the liquid suction surface, and the accommodating cavity comprises an atomizing cavity positioned at one side of the atomizing surface; the groove comprises a first part facing the top end of the atomizing element and a second part facing the liquid suction surface, and the groove is communicated with the atomizing cavity and the liquid discharging channel.

In one embodiment, the bottom wall of the liquid-discharging channel is provided with a jack, a ventilation column is inserted into the jack, the side surface of the ventilation column is provided with an air guide groove, and the air guide groove is used as the air guide channel.

In one embodiment, the ventilation column penetrates through the liquid guide piece and the tail end of the ventilation column is close to the bottom surface of the lower liquid channel, and the air guide groove is terminated at the tail end of the ventilation column.

In one embodiment, the atomizer further comprises a base, the base is connected with the liquid guide, and the ventilation column is arranged on or is part of the base.

In one embodiment, the base includes a mounting portion and an annular wall extending from the mounting portion toward the liquid guide; the utility model discloses a liquid guide, including base, installation department, liquid guide, annular groove has been seted up towards one side of base, the annular wall is inserted and is established in the annular groove, installation department with casing fixed connection, the installation department with the bottom of liquid guide encloses into the inlet chamber, the annular wall with the liquid guide encloses into the atomizing chamber.

In one embodiment, the liquid guide includes a partition wall, and the lower liquid passage is partitioned into a first passage and a second passage by the partition wall.

In one embodiment, the wall surfaces defining the first and second passages are formed with the bubble guide grooves, respectively.

In one embodiment, at least part of the bubble guiding groove is located on the surface of the partition wall.

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

According to the atomizer provided by the embodiment, the air guide channel for supplementing air into the liquid storage cavity is arranged on the liquid guide piece, and the air bubble guide groove is arranged on the inner wall surface of the lower liquid channel, is positioned near the air outlet of the air guide channel and extends into the liquid storage cavity, so that air generated during ventilation or air bubbles formed by the air are guided towards the direction away from the liquid suction surface of the atomizing element, the air bubbles are prevented from being accumulated on the liquid suction surface, and the technical problem that the heating element is locally overheated at high temperature due to insufficient liquid supply is effectively prevented.

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 provided in an embodiment of the present utility model;

FIG. 2 is a cross-sectional view of a nebulizer provided in one embodiment of the utility model;

fig. 3 is a schematic perspective view of an atomizing element according to an embodiment of the present utility model;

FIG. 4 is a schematic perspective view of a liquid guide member according to an embodiment of the present utility model;

FIG. 5 is a schematic perspective view of a liquid guide member according to an embodiment of the present utility model;

FIG. 6 is a perspective view of a base provided in one embodiment of the present utility model;

FIG. 7 is an enlarged partial view of a cross-sectional view of an atomizer provided in one embodiment of the utility model;

FIG. 8 is a cross-sectional view of a nebulizer provided in one embodiment of the utility model;

FIG. 9 is a schematic perspective view of a liquid guide member according to an embodiment of the present utility model;

FIG. 10 is a schematic perspective view of a liquid guide member according to an embodiment of the present utility model;

FIG. 11 is a perspective view of a base provided in one embodiment of the present utility model;

FIG. 12 is an enlarged partial view of a cross-sectional view of a nebulizer provided in one embodiment of the utility model;

FIG. 13 is a schematic view of a first airflow path R1 within a nebulizer according to one embodiment of the utility model;

FIG. 14 is a schematic view of a second airflow path R2 within the atomizer provided in accordance with one embodiment of the utility model;

FIG. 15 is a schematic view of a third airflow path R3 within the atomizer provided in accordance with an embodiment of the utility model;

FIG. 16 is a schematic view of a fourth airflow path R4 within the atomizer provided in accordance with an embodiment of the utility model;

Fig. 17 is a schematic perspective view of an electronic atomization device according to an embodiment of the present utility model;

fig. 18 is a cross-sectional view of an electronic atomizing device according to an embodiment of the present utility model.

Detailed Description

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 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.

Fig. 1 and 2 show a schematic perspective view and a cross-sectional view, respectively, of an atomizer 100 according to one embodiment of the present utility model. The atomizer 100 comprises a housing 10, a liquid guide 20 and an atomizing element 30. The housing 10 defines a central axis of the atomizer 100 and the housing 10 has a liquid reservoir 101 therein for storing a liquid matrix. The liquid guide 20 is disposed in the housing 10 and defines a part of the boundary of the liquid storage chamber 101, and the liquid guide 20 is connected with the housing 10 in a sealing manner in the circumferential direction to prevent leakage of the liquid matrix in the liquid storage chamber 101. The annular inner wall and the top wall of the liquid guide piece 20 enclose to form a containing cavity 21, and the liquid guide piece 20 is also provided with a liquid inlet 201 which is communicated with the containing cavity 21 and the liquid storage cavity 101. A portion of the outer surface of the liquid guide 20 defines a recess 202 (see fig. 4), and a space between the recess 202 and the housing 10 forms a liquid discharge passage 22. The liquid inlet 201 is located near the bottom surface of the recess 202, and the liquid storage cavity 101, the liquid outlet channel 22 and the liquid inlet 201 are sequentially communicated. An atomizing element 30 is provided in the housing chamber 21 for atomizing the liquid matrix from the liquid storage chamber 101 to generate an aerosol. In some embodiments, because the liquid guide 20 is made of a flexible, soft gel material, such as silicone, rubber, or thermoplastic elastomer (TPE), the atomizing element 30 may be secured at the liquid inlet 201 by an interference fit. The housing 10 is further provided with a hollow tube 102, and a mist guide passage (not shown) is formed in the hollow tube 102. The hollow tube 102 is further provided with a suction port 104, and the suction port 104 is communicated with the mist guide channel. The hollow tube 102 is used for guiding the aerosol generated by atomizing the atomizing element 30 out of the suction port 104 through the mist guiding channel for sucking by a user.

With further reference to fig. 3, the atomizing element 30 includes a porous substrate 31 having air permeability and a heating element 32 coupled to the porous substrate 31, wherein the porous substrate 31 may be made of a hard capillary structure such as porous ceramic, porous glass ceramic or porous glass, and the porous substrate 31 may have a substantially block-shaped structure in embodiments. According to the use condition, the porous base body 31 is provided with a liquid suction surface 311 and an atomization surface 312 opposite to each other along the transverse direction of the atomizer 100, i.e., the direction perpendicular to the central axis, and the porous base body 31 is mounted in the housing chamber 21 in such an orientation that the liquid suction surface 311 is parallel to the central axis. The liquid suction surface 311 is used for sucking up the liquid matrix and is in fluid communication with the liquid discharge channel 22, and the heating element 32 is coupled to the atomizing surface 312 for heating the liquid matrix absorbed by the atomization. The liquid suction surface 311 and the atomizing surface 312 are parallel to the central axis of the atomizer 100, respectively, with the liquid suction surface 311 facing the liquid inlet 201 side. The liquid suction surface 311 communicates with the liquid storage chamber 101 through the liquid inlet 201, so that the liquid medium in the liquid storage chamber 101 flows toward the liquid suction surface 311 through the liquid inlet 201 and toward the atomizing surface 312 through the internal microporous structure of the porous substrate 31. As shown in fig. 7, when the heating element 32 combined with the atomizing surface 312 completes heating and atomizing the liquid matrix, the generated aerosol is released from the atomizing surface 312, and the aerosol is stored in the atomizing cavity 211 formed by the cooperation of the atomizing surface 312 and the annular inner wall of the liquid guide 20 after being released, and the atomizing cavity 211 is all or a part of the accommodating cavity 21. The liquid guide 20 is provided with a communication channel 2100 (see fig. 4), one end of the communication channel 2100 is connected to the hollow tube 102, and the other end of the communication channel 2100 is connected to the atomizing chamber 211. The atomizing chamber 211 communicates with the hollow tube 102 such that the aerosol generated by the atomization of the atomizing element 30 can be directed through the hollow tube 102 into the mouthpiece 104 for use by a user.

In some embodiments, the heating element 32 includes, but is not limited to, at least one of stainless steel, nichrome, iron-chromium-aluminum alloy, metallic titanium, etc., and is preferably formed on the atomizing surface 312 by mixing conductive raw material powder with a printing aid to form a paste, and then printing the paste in a proper pattern and sintering the paste, so that all or most of the surface of the paste is tightly combined with the atomizing surface 312, and the effect of high atomizing efficiency, less heat loss, dry burning prevention or great reduction of dry burning is achieved. Alternatively, the heating element 32 may take various forms, and the heating element 32 may be a sheet-shaped heating element combined with the atomizing surface 312 and formed with a specific pattern, or may be a plate-shaped heating element formed by a heating net or a heating wire spiral, a heating film, or other forms; for example, the particular pattern may be a serpentine shape.

In some embodiments, as shown in fig. 5 and 6, the atomizer 100 further includes a base 40 for supporting the liquid guide 20, and at least a portion of the liquid guide 20 provides a seal between the housing 10 and the base 40 due to the flexible material of the liquid guide 20. The base 40 includes a mounting portion 41 and an annular wall 42 extending from the mounting portion 41 toward the liquid guiding member 20, and an annular groove 43 is formed in a side of the liquid guiding member 20 toward the base 40, and the mounting portion 41 is fixedly connected with the housing 10 by inserting the annular wall 42 into the annular groove 43. Referring to fig. 7, the mounting portion 41 and the partition surface 27 disposed at the bottom of the liquid guiding member 20 define an air inlet chamber 26, and the annular wall 42 is inserted into the liquid guiding member 20 and then forms the atomization chamber 211 with the partition surface 27 and the inner top surface of the liquid guiding member 20 on the side of the atomization surface 312. The base 40 is also provided with an air inlet column 103, one end of the air inlet column 103 is communicated with the air inlet cavity 26, and the other end of the air inlet column 103 is communicated with the outside of the atomizer 100, so that external air can enter the atomizer 100. The partition surface 27 is provided with a vent hole 261 in the axial direction of the air intake column 103, and the vent hole 261 communicates the atomizing chamber 211 and the air intake chamber 26 so that outside air can enter the atomizing chamber 211. In some embodiments, the separation surface 27 and the bottom wall 44 of the base 40 are each provided with a plurality of capillary grooves 440 for adsorbing and holding a small amount of liquid matrix, so that the liquid matrix condensed or leaked from the atomizing chamber 211 is adsorbed on the inner wall of the air inlet chamber 26, and the liquid matrix is prevented from flowing out of the atomizer 100 from the air inlet column 103.

During operation of the atomizer 100, the atomizing element 30 continues to consume the liquid matrix in the liquid reservoir 101, resulting in a continuous decrease in the air pressure in the liquid reservoir 101. When the air pressure difference between the inside and the outside of the liquid storage cavity 101 reaches a certain degree, the negative pressure in the liquid storage cavity 101 can prevent the liquid matrix from entering the porous matrix 31 to permeate towards the atomization surface, meanwhile, the air in the atomization cavity 211 also easily reversely permeates into the liquid storage cavity 101 through the porous matrix 31, and at the moment, the liquid suction surface 311 can generate air bubbles through air-liquid contact so as to block the liquid matrix from entering the porous matrix 31. In order to maintain the air pressure balance between the inside and the outside of the liquid storage cavity 101, the liquid matrix is smoothly introduced into the atomizing element 30, so as to prevent the influence on the user experience caused by the local overheating of the heating element due to insufficient liquid supply, and the liquid guide 20 is provided with an air guide channel which is communicated with the outside air and the liquid outlet channel 22 and is used for providing a path for air to enter the liquid outlet channel 22. In some embodiments, the liquid guiding member 20 is provided with a groove 28 (see fig. 4 and 5) on a surface contacting the atomizing element 30, and as shown in fig. 7, the groove 28 and the atomizing element 30 cooperate to form a first air guiding channel (not shown), and the first air guiding channel communicates with the atomizing chamber 211 and the lower liquid channel 22 to provide a path for air entering the liquid storage chamber 101. The recess 28 is "L" shaped at the top end of the atomizing element 30, i.e. the recess 28 comprises a first portion 28a parallel to the top end of the porous matrix 31 and a second portion 28b facing the liquid suction surface 311. Further, the recess 28 may further include a third portion 28c in communication with the second portion 28b and extending away from the meniscus 311.

In other embodiments, as shown in fig. 9, 10, and 11, a first ventilation post 4010 and a second ventilation post 4020 may be provided on base 40, with first ventilation post 4010 and second ventilation post 4020 provided on base 40 or being part of base 40. The bottom wall of the lower liquid passage 22 is provided with first and second insertion holes 2210 and 2220 that mate with the first and second ventilation columns 4010 and 4020. The liquid guide 20 is fixedly connected to the base 40 by inserting the first ventilation column 4010 and the second ventilation column 4020 into the first insertion hole 2210 and the second insertion hole 2220, respectively. With further reference to fig. 8 and 12, the top ends of the first and second gas exchange columns 4010 and 4020 pass through the bottom wall of the lower fluid passageway 22 to the fluid reservoir 101. One or more air guide grooves 4210 are respectively formed on the side surfaces of the first air exchanging column 4010 and the second air exchanging column 4020, and a second air guide channel (not shown) is formed in the one or more air guide grooves 4210 and used for communicating the liquid storage cavity 101 with the outside air. First ventilation column 4010 and second ventilation column 4020 extend through liquid guide 20, and ends of first ventilation column 4010 and second ventilation column 4020 are each adjacent to a bottom wall of lower fluid passageway 22, and air guide housing 4210 terminates at ends of first ventilation column 4010 and second ventilation column 4020. Optionally, the air guide groove 4210 has a capillary structure. Because of capillary action, a small amount of liquid matrix from the liquid storage cavity 101 is kept in the air guide groove 4210, and only when the negative pressure in the liquid storage cavity 101 reaches a certain degree, external air can enter the liquid storage cavity 101 through the second air guide channel under the driving of the internal and external pressure difference.

The air guide groove 4210 includes an air outlet 251 and an air inlet 252, wherein the air outlet 251 is located at the bottom wall of the lower liquid passage 22. The air outlet 251 communicates the liquid storage chamber 101 with the second air guide channel. When the first ventilation column 4010 and the second ventilation column 4020 are inserted in the first insertion hole 2210 and the second insertion hole 2220, respectively, gaps 253 are formed between the first ventilation column 4010 and the first insertion hole 2210 and between the second ventilation column 4020 and the second insertion hole 2220. One end of the gap 253 communicates with the air intake chamber 26, and the other end of the gap 253 communicates with the air intake 252, providing a path for outside air to enter the second air guide passage.

Referring to fig. 9, the lower liquid channel 22 extends from the top end surface of the liquid guiding member 20 to the liquid inlet 201, and the lower liquid channel 22 is separated by a partition wall 24 provided on the liquid guiding member 20 to form a first channel 221 and a second channel 222. The liquid guide 20 is formed with bubble guide grooves 2202 on a wall surface defining the first passage 221 and a wall surface of the second passage 222, respectively. The bubble guide groove 2202 extends along the liquid guide 20 from the liquid inlet 201 toward the liquid storage cavity 101, and is used for guiding bubbles, which are generated during ventilation and are accumulated near the atomizing element 30, away from the liquid inlet 201 along the track of the bubble guide groove 2202, so that local overheating of the heating element caused by blocking the oil inlet of the liquid suction surface 311 is avoided. At least a part of the bubble guide groove 2202 is formed on the surface of the partition wall 24 to guide bubbles from a plurality of directions, ensuring smooth oil suction of the liquid suction surface 311.

Referring to fig. 13 and 14, the first air flow path R1 and the second air flow path R2 respectively show the two air flow paths after external air enters the atomizer 100 through the air inlet column 103 in one embodiment. The first airflow path R1 represents an airflow path through which the external air guides the aerosol stored in the atomizing chamber 211 out through the hollow tube 102, that is, the external air enters the air inlet chamber 26 from the air inlet column 103 along the axis of the atomizer 100, enters the atomizing chamber 211 through the air vent 261 to carry the aerosol, and finally is discharged from the suction port 104 through the hollow tube 102 for the user to use, and the airflow path with straight line communication can reduce the retention of the aerosol, thereby improving the mist outlet efficiency. The second air flow path R2 represents an air flow path through which outside air enters the liquid storage chamber 101 through the first air guide passage. That is, after the external air enters the atomization cavity 211, a part of the air enters the lower liquid channel 22 through the groove 28 at the top end of the atomization element 30, and the lower liquid channel 22 is communicated with the liquid storage cavity 101, so that the air enters the liquid storage cavity 101 to complete air supplementing.

In another embodiment, as shown in fig. 15 and 16, the third air flow path R3 and the fourth air flow path R4 are two air flow paths after the outside air enters the atomizer 100 through the air inlet column 103. The third airflow path R3 is similar to the first airflow path R1, and therefore will not be described herein. The fourth air flow path R4 represents an air flow path through which outside air enters the liquid storage chamber 101 through the second air guide passage to replenish air. After the external air enters the air inlet cavity 26, a part of air enters the second air guide channel through the gap 253 and then enters the lower liquid channel 22 through the air outlet 251, and the lower liquid channel 22 is communicated with the liquid storage cavity 101, so that the air enters the liquid storage cavity 101 to complete air supplementing.

The embodiment of the present utility model further provides an embodiment of an electronic atomization device 200, as shown in fig. 17 and fig. 18, where the electronic atomization device 200 includes an atomizer 100 and a power supply mechanism 50 that can be electrically connected to the atomizer 100, and the power supply mechanism 50 may be fixedly connected to the atomizer 100 or detachably connected to the atomizer 100. For the specific structure and function of the atomizer 100, please refer to the above embodiment, and the description thereof is omitted here.

The power supply mechanism 50 is provided with a battery cell 51, an electrical connection terminal (not shown) electrically connectable to the conductive electrode 60 of the atomizer 100, a gas pressure sensor (not shown), and a controller (not shown). When a user sucks the electronic atomizing device 200, the air pressure sensor senses the internal air pressure change and sends a sensing signal to the controller, and the controller controls the electric core 51 to provide electric energy to the atomizer 100 through the electric connection terminal, so that the atomizing element 30 in the atomizer 100 can receive the electric energy and start to heat and atomize the liquid matrix to generate aerosol for the user.

It should be noted that the above description is only for illustrating the technical solution of the present utility model, and the present utility model may be implemented in many different forms, and is not limited to the embodiments described in the present specification, which are not provided as additional limitations on the present disclosure, for the purpose of making a thorough and complete understanding of the present disclosure. The above-described features are further combined with each other to form various embodiments not listed above, and are considered to be the scope of the present utility model described in the specification; further, it will be apparent to those skilled in the art that modifications and equivalents may be made to the technical solutions described in the above embodiments, and that all such modifications and equivalents do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (11)

1. An atomizer, comprising:

a housing having a reservoir therein for storing a liquid matrix;

the liquid guide piece is arranged in the shell and defines part of the boundary of the liquid storage cavity, and the liquid guide piece is provided with a containing cavity and a liquid discharging channel;

The atomizing element comprises a porous matrix, the porous matrix is arranged in the accommodating cavity, the porous matrix is provided with a liquid suction surface for receiving the liquid matrix and an atomizing surface arranged opposite to the liquid suction surface along the transverse direction of the atomizer, and the liquid suction surface is in fluid communication with the liquid discharging channel;

the liquid guide piece is provided with an air guide channel which is communicated with outside air and the liquid discharging channel and is used for providing a path for air to enter the liquid discharging channel; the inner wall surface of the liquid guide member defining the liquid discharge passage is provided with a bubble guide groove extending toward the liquid storage chamber.

2. The nebulizer of claim 1, wherein the air guide channel comprises a groove formed on a surface of the liquid guide that contacts the nebulizing element.

3. The nebulizer of claim 2, wherein the housing cavity comprises a nebulization cavity on a side of the nebulization face; the groove comprises a first part facing the top end of the atomizing element and a second part facing the liquid suction surface, and the groove is communicated with the atomizing cavity and the liquid discharging channel.

4. The atomizer according to claim 1, wherein the bottom wall of the lower liquid passage is provided with a jack, a ventilation column is inserted into the jack, and the side surface of the ventilation column is provided with an air guide groove which is used as the air guide passage.

5. The atomizer of claim 4 wherein said air exchange column extends through said liquid guide and terminates at an end thereof adjacent said lower liquid passage floor, said air guide slot terminating at an end of said air exchange column.

6. The nebulizer of claim 4, further comprising a base connected to the liquid guide, the ventilation post being disposed on or part of the base.

7. The atomizer of claim 6 wherein said base includes a mounting portion and an annular wall extending from said mounting portion toward said liquid guide; the utility model discloses a liquid guide, including base, installation department, liquid guide, annular groove has been seted up towards one side of base, the annular wall is inserted and is established in the annular groove, installation department with casing fixed connection, the installation department with the bottom of liquid guide encloses into the inlet chamber, the annular wall with the liquid guide encloses into the atomizing chamber.

8. The nebulizer of any one of claims 1 to 7, wherein the liquid guide comprises a partition wall, the lower liquid passage being partitioned into a first passage and a second passage by the partition wall.

9. The atomizer according to claim 8, wherein wall surfaces defining the first and second passages are respectively formed with the bubble guide grooves.

10. The nebulizer of claim 8, wherein at least a portion of the bubble guide groove is located on a surface of the partition wall.

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