CN217958741U - Electronic atomization device and atomizer and ventilation structure thereof - Google Patents

Abstract

The utility model relates to an electronic atomization device, an atomizer and a ventilation structure thereof, wherein the ventilation structure comprises a ventilation channel and a flow blocking component; the flow blocking component is arranged in the air exchange channel and used for preventing liquid in the air exchange channel from flowing and dividing the air exchange channel into a multi-stage air exchange buffer structure. This structure of taking a breath is through setting up the choked flow component in the passageway of taking a breath to can obstruct the liquid in the passageway of taking a breath and flow, separate the passageway of taking a breath for the buffer memory structure of taking a breath, and then can let the resistance of taking a breath diminish, make to take a breath more smoothly, and reducible suction weeping's risk improves the performance of taking a breath.

Description

Electronic atomization device and atomizer and ventilation structure thereof

Technical Field

The utility model relates to an atomizing device, more specifically say, relate to an electronic atomizing device and atomizer and structure of taking a breath thereof.

Background

Ventilation channels have become an important part of electronic atomisation devices, especially in ceramic atomisation devices. The electronic atomization device in the related art is communicated with the external liquid storage cavity and the internal liquid storage cavity through the special channel, and the effect of internal and external pressure is balanced through gas, so that the atomization function is realized. In the air exchange process of the electronic atomization device, more liquid atomization media enter the air exchange groove, and when bubbles pass through, larger capillary tension needs to be overcome, so that the air exchange is not timely. In addition, the general ventilation channel (straight liquid removal type ventilation groove) is short, so that the suction leakage is easy to cause, and the suction experience is influenced.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a modified structure of taking a breath, further provide a modified electronic atomization device and atomizer and the structure of taking a breath thereof.

The utility model provides a technical scheme that its technical problem adopted is: constructing a ventilation structure comprising a ventilation channel and a flow blocking member; the flow blocking component is arranged in the air exchange channel and used for preventing liquid in the air exchange channel from flowing and dividing the air exchange channel into a multi-stage air exchange buffer structure.

In some embodiments, the venting structure comprises at least one venting groove having capillary suction, the venting groove forming the venting channel inside;

the air exchange groove comprises a groove bottom wall and a groove side wall; the flow blocking member is disposed on the slot bottom wall and/or the slot side wall.

In some embodiments, the plurality of the air exchange grooves are arranged side by side; the ventilation structure further comprises a communicating groove; the communicating groove is arranged on the groove side wall between the two adjacent air exchange grooves;

the flow blocking member is provided on a bottom wall of the communication groove.

In some embodiments, the flow blocking member includes a first boss provided on the bottom wall of the communication groove such that the depth of the communication groove is smaller than the depth of the ventilation groove.

In some embodiments, the ventilation structure includes a body, a drainage channel disposed on the body, and a vent communicating the drainage channel and the ventilation channel.

In some embodiments, the flow blocking member is disposed on a section of the ventilation channel adjacent to the vent hole.

In some embodiments, the obstructing member comprises a second boss; the second boss comprises a flow blocking part for increasing the flow resistance of the liquid and a flow guide part for guiding the gas into the lower liquid channel;

the flow choking part is connected with the vent hole, and the flow guide part is arranged at one end of the flow choking part, which is far away from the vent hole;

the flow guide part comprises a guide inclined plane which is obliquely arranged along the direction far away from the vent hole.

In some embodiments, the ventilation structure includes a first ventilation groove communicating with the outside, and a second ventilation groove having one end connected to the first ventilation groove;

the flow blocking member is arranged in the second ventilation groove so that the depth of the first ventilation groove is greater than the maximum depth of the second ventilation groove;

alternatively, the choke member is disposed in the first scavenging groove such that the depth of the second scavenging groove is greater than the maximum depth of the first scavenging groove.

In some embodiments, the purge trough comprises a third purge trough in communication with the second purge trough and the reservoir chamber of the atomizer;

the depth of the third air exchanging groove is larger than or equal to that of the second air exchanging groove.

In some embodiments, the second scavenging groove is bent from the first scavenging groove and/or the third scavenging groove.

In some embodiments, the flow blocking member includes at least one boss disposed in the second breather slot.

In some embodiments, the boss is a plurality of bosses, and the heights of two adjacently arranged bosses are different.

In some embodiments, the gas exchange structure comprises an annular body; the ventilation channel is arranged on the annular end face of the body.

In some embodiments, the body comprises a major axis and a minor axis;

the ventilation channels comprise two first ventilation channels arranged at two ends of the long shaft and two second ventilation channels arranged at two ends of the short shaft.

The utility model also constructs an atomizer which comprises a liquid storage cavity and the air exchange structure; the air exchange structure is communicated with the liquid storage cavity.

The utility model discloses still construct an electronic atomization device, include the utility model atomizer and with the power supply mechanism of atomizer assembly.

Implement the utility model discloses an electronic atomization device and atomizer and structure of taking a breath thereof has following beneficial effect: this structure of taking a breath is through setting up the choked flow component in the passageway of taking a breath to can hinder the liquid in the passageway of taking a breath and flow, separate the passageway of taking a breath for multistage buffer memory structure of taking a breath, and then can let the resistance of taking a breath diminish, make to take a breath more smoothly, and reducible suction weeping's risk improves the performance of taking a breath.

Drawings

The invention will be further described with reference to the accompanying drawings and examples, in which:

fig. 1 is a schematic structural diagram of an atomizer of an electronic atomizer according to a first embodiment of the present invention;

FIG. 2 is a cross-sectional view of the atomizer shown in FIG. 1;

FIG. 3 is a schematic view of a portion of the atomizer shown in FIG. 1;

FIG. 4 is an exploded view of the atomizing assembly of the atomizer of FIG. 3;

FIG. 5 is a schematic view of the air exchange structure of the atomizing assembly of the atomizer shown in FIG. 4;

fig. 6 is a schematic structural diagram of an atomizing assembly of an atomizer of an electronic atomizing device according to a second embodiment of the present invention;

FIG. 7 is an exploded view of a portion of the atomizing assembly of FIG. 6;

FIG. 8 is a schematic view of the air venting structure of the atomizing assembly of FIG. 7.

Detailed Description

In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Fig. 1 shows some preferred embodiments of the electronic atomization device of the present invention. The electronic atomization device can be used for heating and atomizing the liquid atomization medium to generate atomized gas for a user to suck. In some embodiments, the ventilation structure has the advantages of small ventilation resistance, smooth ventilation and difficult liquid leakage.

As shown in fig. 1, further, in the present embodiment, the electronic atomizer includes an atomizer 1 and a power supply mechanism; the atomizer 1 can be used for atomizing an atomizing medium, and the power supply mechanism can be mechanically and electrically connected with the atomizer 1 and can be used for supplying power to the atomizer 1.

Further, as shown in fig. 2 and 3, in some embodiments, the atomizer 1 includes an atomizing housing 10 and an atomizing assembly 20. The atomizing housing 10 may include a cylindrical housing 11, an outlet tube 12 disposed in the housing 11; the outlet tube 12 may be located at the central axis of the housing 11, and a gap between the outlet tube and the inner side wall of the housing 11 may form a liquid storage chamber 13 for storing a liquid atomizing medium. The atomizing element 20 is accommodated in the atomizing housing 10 and located at one end of the air outlet tube 12 for heating and atomizing the liquid atomizing medium in the liquid storage cavity 13.

As shown in fig. 4, in the present embodiment, the atomizing assembly 20 may include an atomizing base 21, a ventilation structure 22, and a heat generating assembly 23. The atomizing base 21 can be used to support the heating element 23, the ventilation structure 22 is disposed on the atomizing base 21 and detachably assembled with the atomizing base 21, and in some embodiments, the ventilation structure 22 can be clamped with the atomizing base 21. The ventilation structure 22 may form an atomizing seat for receiving at least a portion of the heating element 23 therein. The heating element 23 may be used to heat the liquid atomizing medium delivered from the reservoir 13.

Further, in the present embodiment, the atomizing base 21 includes a seat 211 and a supporting structure 212. Further, in some embodiments, the seat 211 may close the opening at the lower portion of the atomizing housing 10. The supporting structure 212 can be disposed on the base 211, and the base 211 can support the heat generating component 22 through the supporting structure 212. In some embodiments, the support structure 212 may include two opposing and spaced apart support arms 2121, and each support arm 2121 is shaped as a hook for engaging with the atomizing base 22.

As shown in fig. 5, in the present embodiment, the ventilation structure 22 may be a direct liquid type ventilation structure, and may include a body 221, a ventilation channel 222, a flow blocking member 223, an air outlet 224, and a lower liquid hole 225. The body 221 may form an atomizing base for cooperating with the atomizing base 21 to receive the heating element 23 therein. The ventilation channel 222 can be disposed on the body 221, and is communicated with the liquid storage chamber 13 for ventilating the liquid storage chamber 13, so that the liquid atomized medium in the liquid storage chamber 13 can be smoothly delivered to the heating element 23. The resistance member 223 is disposed in the ventilation channel 222 for stopping the liquid flowing in the ventilation channel 222 and dividing the ventilation channel 222 into a multi-stage ventilation buffer structure. The air outlet 224 is disposed on the main body 221 for outputting the atomized air. In some embodiments, the exit orifice 224 may be in communication with the exit tube 12. The number of the liquid drainage holes 225 may be two, and the two liquid drainage holes 225 are located on the body 221 and located at two opposite sides of the air outlet 224 respectively. The lower liquid hole 225 can be communicated with the liquid storage cavity 13, and the liquid atomization medium in the liquid storage cavity 13 can be output to the heating component 23 through the lower liquid hole 225.

Further, in this embodiment, the body 221 may include an outer cover 2211, a fitting 2212, and an inner cover 2213. The outer cover 2211 has a cylindrical shape, and its cross section may be approximately elliptical. The outer cover 2211 covers the outer periphery of the inner cover 2213 and can extend downwards along the opening direction of the inner cover 2213, and an atomizing cavity 2210 can be formed on the inner side of the outer cover to provide a working space for atomizing the heating element 23. The outlet 224 can communicate with the atomizing chamber 2210. In some embodiments, the fitting portion 2212 is disposed at an end of the outer cover 2211 away from the atomizing chamber 2210 for receiving the first sealing element 25. The inner cover 2213 can be positioned within the outer cover 2211 and can be integrally formed with the outer cover 2211. In some embodiments, the inner housing 2213 can be integrally formed with the outer housing 2211 by injection molding. An accommodating cavity with an opening at one end may be formed inside the inner cover 2213, and the accommodating cavity may be used for accommodating the heating element 23 therein. In some embodiments, the lower fluid hole 225 may be disposed in communication with the receiving cavity.

Further, in some embodiments, the air exchange structure includes a plurality of air exchange grooves 2221 and a communication groove 2222. The number of the air vent grooves 2221 is not limited to a plurality, and may be one. The air vent 2221 has a capillary attraction function, and can attract the liquid atomization medium and lock the liquid atomization medium therein, so as to prevent the liquid atomization medium in the liquid storage chamber 13 from flowing out during the suction process and under different environments. The plurality of air exchanging grooves 2221 may be sequentially arranged side by side along the axial direction of the outer cover 2211, two adjacent air exchanging grooves 2221 may be communicated through the communicating groove 2222, and an air exchanging channel 222 may be formed at the inner side, and the air exchanging channel 222 may be communicated with the liquid storage cavity 13, specifically, the air exchanging channel 222 may be communicated with the lower liquid hole 225, and further, the communication with the liquid storage cavity 13 is achieved. In this embodiment, each ventilation slot 2221 is longitudinally arranged and can extend along the circumferential direction of the outer cover 2211. The ventilation slot 2221 includes a slot bottom wall 2201 and slot side walls 2202, and in the present embodiment, the choke member 223 is disposed on the slot bottom wall 2201 and the slot side walls 2202. The communicating groove 2222 is provided on the groove side wall 2202 between the two adjacent air exchange grooves 2221, and the flow blocking member 223 may be provided on the bottom wall of the communicating groove 2222. In this embodiment, the ventilation structure 22 may further include a ventilation hole 2223, and the ventilation hole 2223 may be located at one end of the outermost ventilation slot 2221 and may be used for communicating the lower liquid channel 225 and the ventilation channel 222. In some embodiments, the vent hole 2223 may be a circular hole, and may be disposed through the sidewall of the outer cover 2211 in the thickness direction of the sidewall of the outer cover 2211.

Further, in the present embodiment, the blocking member 223 may include a first boss 223a, and the first boss 223a may be disposed on the bottom wall of the communication groove 2222, and may be configured to be higher than the bottom wall of the communication groove 2222 to form a step, so that the depth of the communication groove 2222 is smaller than the depth of the ventilation groove 2221, that is, the ventilation channel 222 is divided into a multi-stage ventilation buffer structure, so as to block the flow of the liquid, and at the same time, the ventilation resistance is reduced, so that the ventilation is smoother. Since the atomizing chamber 2210 is normally under a negative pressure during the pumping process to draw the liquid atomizing medium in the reservoir chamber 13 out of the ventilating slot 2221, the ventilating slot 2221 has a certain length of the liquid atomizing medium, and since the cross-sectional area of the ventilating slot 2221 is usually small and the capillary tension is large, there is a certain resistance to the rising of the ventilating bubbles, the resistance member 223 blocks the flow of the liquid, so that the resistance to the flow of the gas in each ventilating slot 2221 can be reduced, and the ventilating performance can be improved. It is to be appreciated that in other embodiments, the first boss 223a may be omitted and the obstructing member 223 is not limited to including the first boss 223a.

Further, in this embodiment, the blocking member 223 may be disposed on a section of the ventilation channel 222 near the ventilation hole 2223, and specifically, the blocking member 223 may be disposed in the outermost ventilation slot 2221 and near the ventilation hole 2223. In the present embodiment, the blocking member 223 includes a second projection 223b, and the second projection 223b is located on the groove bottom wall 2201 of the outermost scavenging groove 2221. In this embodiment, the second boss 223b may include a flow blocking portion 2231 and a flow guide portion 2232. The blocking portion 2231 may be near an end of the ventilation channel 222 near the vent hole 2223, and may be connected to the vent hole 2223. The top surface of the flow prevention portion 2231 may be a flat surface. In this embodiment, the flow guiding portion 2232 is disposed at an end of the flow blocking portion 2231 away from the vent hole 2223, and is configured to guide the gas in the air exchanging groove 2221 to the vent hole 2223, and further guide the gas to the liquid storage cavity 13, so as to facilitate discharging the liquid from the liquid storage cavity 13. The guiding portion 2232 includes a guiding inclined surface, which is inclined in a direction away from the air hole 2223, so that air bubbles can more easily enter the liquid storage chamber 13.

As further shown in fig. 2 to 4, in the present embodiment, the heat generating component 23 may include a porous body 231 and a heat generating structure 232. The porous body 231 may be a ceramic porous body. Of course, it is understood that in other embodiments, the porous body 231 may not be limited to being a ceramic porous body. The heat generating structure 232 may be disposed on the porous body 231, and in some embodiments, the heat generating structure 232 may be a heating wire or a heating film, but it is understood that in other embodiments, the heat generating structure 232 may not be limited to be a heating wire or a heating film.

Further, in some embodiments, the atomizing assembly 20 further includes a liquid absorbing member 24, the liquid absorbing member 24 may be a liquid absorbing cotton, and the liquid absorbing member may be disposed in the atomizing base 22 and located on a side of the porous body 231 opposite to the heat generating structure 232, and the liquid atomizing medium conveyed from the lower liquid channel 2223 may be stored in the liquid absorbing member 24 and output to the porous body 231. In some embodiments, the wicking member 24 can be annular.

Further, in the present embodiment, the atomizing assembly 20 further includes a first sealing member 25, and the first sealing member 25 can be sleeved on the fitting portion 2212 of the ventilation structure 22 for sealing the ventilation structure 22 and the atomizing housing 10. In some embodiments, the first sealing member 25 may be a silicone sleeve, but it is understood that in other embodiments, the first sealing member 25 may not be limited to being a silicone sleeve, and the first sealing member 25 may be other.

Further, in the present embodiment, the atomizing assembly 20 further includes a second seal 26. In this embodiment, the second sealing element 26 may include a sealing ring 261 and a limiting portion 262, and the sealing ring 261 may be sleeved on the seat body 211 for sealing and connecting the seat body 211 and the atomizing housing 10. The position-limiting portion 262 can be connected to the sealing ring 261 and can penetrate into the seat 211 to limit the position of the electrode 27.

Further, in some embodiments, the atomizing assembly 20 further includes two electrodes 27, and the two electrodes 27 may be mounted on the seat 211 at intervals for electrically connecting the power supply mechanism to the heat generating assembly 23.

Fig. 6 to 7 show a second embodiment of the electronic atomizer of the present invention, which differs from the first embodiment in that the liquid-absorbing member 24 can be omitted and the air-exchanging structure 22 is not a direct liquid type air-exchanging structure. The ventilation structure 22 can be disposed on the heating element 23, and specifically, the ventilation structure 22 can be disposed on a side of the porous body 231 away from the heating structure 232. The ventilation structure 22 can be housed in the atomizing base 28 together with the porous body 231.

As shown in fig. 8, in the present embodiment, the ventilation structure 22 is a silicone piece or a plastic piece. The ventilation structure 22 includes a ring-shaped main body 221, and the cross-sectional shape and size of the main body 221 can be matched with the shape and size of the end surface of the porous body 231 far away from the heating structure 232. The ventilation channel 222 can be disposed on the annular end surface 2210 of the body 221. In the present embodiment, the cross-sectional shape of the body 221 is approximately rectangular, and the body 221 includes a long axis and an end axis; the ventilation channel 222 may include a first ventilation channel 222a and a second ventilation channel 222b. The number of the first ventilation channels 222a may be two, the two first ventilation channels 222a may be disposed at two ends of the major axis, and the two second ventilation channels 222b may be disposed at two ends of the minor axis.

In this embodiment, the air exchange structure includes a first air exchange slot 2224, a second air exchange slot 2225 and a third air exchange slot 2226. That is, the first air change path 222a and the second air change path 222b are formed by connecting a first air change slot 2224, a second air change slot 2225, and a third air change slot 2226. The first ventilating slot 2224 may be in communication with the outside, and external air may be introduced into the second ventilating slot 2225. One end of the second air exchanging groove 2225 may be connected to the first air exchanging groove 2224, and may be bent from the first air exchanging groove 2224, and specifically, the second air exchanging groove 2225 may be perpendicular to the first air exchanging groove 2224. It is understood that, in other embodiments, the second air vent groove 2225 may not be limited to being bent from the first air vent groove 2224. The third air exchange groove 2226 may be communicated with the second air exchange groove 2225 and the liquid storage cavity 13, and may be disposed to be bent with the second air exchange groove 2225, and specifically, in some embodiments, the second air exchange groove 2225 may be disposed to be perpendicular to the third air exchange groove 2226. It is to be appreciated that in other embodiments, the second air exchange slot 2225 may not be limited to being perpendicular to the third air exchange slot 2226. It is understood that in other embodiments, the air exchange structure may not be limited to including the first air exchange slot 2224, the second air exchange slot 2225, and the third air exchange slot 2226.

In this embodiment, two first ventilation slots 2224 forming the first ventilation channel 222 may be provided, and the two first ventilation slots 2224 are spaced apart from each other along the length direction of the body 221. The choke member 223 is disposed in the second air change groove 2225 such that the depth of the first air change groove 2224 may be greater than the depth of the second air change groove 2225, thereby forming a two-stage air change buffer structure. The depth of the first air slit 2224 may be selected to be 0.25mm. Of course, it is understood that in other embodiments, the first air vent slot 2224 may not be limited to being 0.25mm. The second air vent groove 2224 forming the first air vent passage 222 may include at least one bent portion, which may not be limited to a straight line shape. The second air exchange slot 2224 can increase the length of the whole first air exchange channel 222 by increasing the bending portion, thereby reducing the risk of liquid leakage. In the first gas exchange passage 222a, the obstructing member 223 may have a plurality of projections 223c,223d, and the heights of two projections 223c,223d that are disposed adjacent to each other are different. The plurality of bosses 223c,223d may be disposed in the second air purge groove 2225. Specifically, the bosses 223c and 223d may include a third boss 223c and a fourth boss 223d, the height of the third boss 223c may be set lower than the height of the fourth boss 223d, and in the second gas exchange groove 2225, the number of the third bosses 223c may be two, and the two third bosses 223c may be located on two opposite sides of the fourth boss 223d. It is understood that in other embodiments, the number of the bosses 223c,223d is not limited to two. The depth of the third air change groove 2226 forming the first air change channel 222a may be greater than the depth of the second air change groove 2225, so as to facilitate the falling of air bubbles and reduce the risk of air bubble blockage. A third ventilation buffer structure can be formed through the third ventilation slot 2226. In some embodiments, the depth of the third air slit 2226 may be selected to be 0.15mm, so that leakage may be prevented.

In this embodiment, the depth of the first air change groove 2224 forming the second air change passage 222b may be smaller than the depth of the second air change groove 2225, and the first air change groove 2224 and the second air change groove 2225 are provided with the third projection 223c and the fourth projection 223d, respectively. It is understood that, in other embodiments, the flow blocking member 223 may be disposed only in the first air exchange groove 2224, i.e., the fourth third projection 223c or the fourth projection 223d may be disposed only in the first air exchange groove 2224. The depth of the third scavenging slot 2226 may be the same as the depth of the second scavenging slot 2225.

It is to be understood that the foregoing examples merely represent preferred embodiments of the present invention, and that the description thereof is more specific and detailed, but not intended to limit the scope of the invention; it should be noted that, for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention; therefore, all changes and modifications that come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims (16)

1. A ventilation structure, characterized by comprising a ventilation passage (222) and a flow blocking member (223); the flow blocking member (223) is disposed in the ventilation channel (222) for blocking a liquid flow in the ventilation channel (222) and dividing the ventilation channel (222) into a multi-stage ventilation buffer structure.

2. The ventilation structure according to claim 1, characterized in that the ventilation structure comprises at least one ventilation slot (2221) having capillary adsorption, the inside of the ventilation slot (2221) forming the ventilation channel (222);

the scavenging slot (2221) comprises a slot bottom wall (2201) and a slot side wall (2202); the obstructing members (223) are arranged on the slot bottom wall (2201) and/or the slot side walls (2202).

3. The ventilation structure according to claim 2, wherein the ventilation slot (2221) is plural, and the ventilation slots (2221) are arranged side by side; the ventilation structure further comprises a communicating groove (2222); the communicating groove (2222) is formed in the groove side wall (2202) between the two adjacent air exchange grooves (2221);

the flow blocking member (223) is disposed on a bottom wall of the communication groove (2222).

4. The air exchange structure according to claim 3, wherein the flow blocking member (223) includes a first boss (223 a), the first boss (223 a) being provided on a bottom wall of the communication groove (2222) such that a depth of the communication groove (2222) is smaller than a depth of the air exchange groove (2221).

5. The ventilation structure according to claim 1, characterized in that the ventilation structure comprises a body (221), a lower liquid passage (225) provided on the body (221), and a vent hole (2223) communicating the lower liquid passage (225) and the ventilation passage (222).

6. The air exchange structure according to claim 5, wherein the flow blocking member (223) is provided on a section of the air exchange passage (222) near the vent hole (2223).

7. The air exchange structure according to claim 6, wherein the flow blocking member (223) comprises a second boss (223 b); the second boss (223 b) includes a flow blocking portion (2231) for increasing a flow resistance of the liquid, and a flow guide portion (2232) for guiding the gas into the downcomer channel (225);

the flow blocking part (2231) is connected with the air holes (2223), and the flow guiding part (2232) is arranged at one end of the flow blocking part (2231) far away from the air holes (2223);

the guide part (2232) comprises a guide inclined surface which is obliquely arranged along the direction far away from the vent hole (2223).

8. The air exchange structure according to claim 1, wherein the air exchange structure includes a first air exchange groove (2224) communicating with the outside, and a second air exchange groove (2225) having one end connected to the first air exchange groove (2224);

the choke member (223) is disposed in the second scavenging slot (2225) such that the depth of the first scavenging slot (2224) is greater than the maximum depth of the second scavenging slot (2225);

alternatively, the choke member (223) is disposed in the first scavenging groove (2224) such that the depth of the second scavenging groove (2225) is greater than the maximum depth of the first scavenging groove (2224).

9. The air exchange structure according to claim 8, wherein the air exchange groove (2221) comprises a third air exchange groove (2226) communicating with the second air exchange groove (2225) and the liquid storage chamber (13) of the atomizer;

the depth of the third scavenging groove (2226) is greater than or equal to the depth of the second scavenging groove (2225).

10. The ventilation structure according to claim 9, wherein the second ventilation slot (2225) is bent from the first ventilation slot (2224) and/or the third ventilation slot (2226).

11. The air exchange structure according to claim 10, wherein the flow blocking member (223) comprises at least one boss (223c, 223d) provided in the second air exchange groove (2225).

12. The ventilation structure according to claim 11, wherein the plurality of the projections (223c, 223d) are provided, and a height of two adjacent projections (223c, 223d) is different.

13. The ventilation structure according to claim 1, characterized in that it comprises an annular body (221); the ventilation channel (222) is provided on an annular end surface (2210) of the body (221).

14. The ventilation structure of claim 13, wherein the body (221) comprises a major axis and a minor axis;

the ventilation channel (222) comprises two first ventilation channels (222 a) arranged at two ends of the long shaft and two second ventilation channels (222 b) arranged at two ends of the short shaft.

15. A nebulizer, comprising a reservoir (13) and a venting structure (22) according to any one of claims 1 to 14; the air exchange structure (22) is communicated with the liquid storage cavity (13).

16. An electronic atomisation device, characterized in that it comprises a atomiser (1) as claimed in claim 15, and a power supply mechanism fitted with the atomiser (1).

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