CN217487649U - Electronic atomizer, air guide tube for electronic atomizer and electronic cigarette - Google Patents

Abstract

The present disclosure relates to an electronic atomizer, an air duct for an electronic atomizer, and an electronic cigarette. Electronic atomizer includes stock solution subassembly (1), lid subassembly (2) and gas channel (A), and wherein, stock solution subassembly (1) includes: a liquid storage case (11); the air guide pipe (12), the air guide pipe (12) is arranged in the liquid storage shell (11), and a liquid storage cavity (14) is defined between the liquid storage shell (11) and the air guide pipe (12); the heating core assembly (13) is arranged in the gas channel (A) and receives liquid from the liquid storage cavity (14) through the liquid channel, wherein the electronic atomizer further comprises a ventilation structure, the ventilation structure enables the electronic atomizer to have a first state and a second state, gas in the liquid storage cavity (14) is discharged through the ventilation structure in the first state, and gas in the liquid storage cavity (14) is sealed and isolated from the outside in the second state. The present disclosure may avoid or reduce the accumulation or leakage of liquid smoke in the air channel.

Description

Electronic atomizer, air guide pipe for electronic atomizer and electronic cigarette

Technical Field

The present disclosure relates to an electronic atomizer, a gas duct for an electronic atomizer and an electronic cigarette.

Background

The electronic atomizer is a core component of the electronic cigarette, and generates smoke by heating smoke liquid (also called tobacco tar).

An existing electronic atomizer includes stock solution subassembly, lid subassembly and gas channel, and the stock solution subassembly includes stock solution casing, sets up the air duct in stock solution casing and sets up the heating core subassembly at the air duct lower extreme. A liquid storage cavity is defined between the liquid storage shell and the air guide tube and is sealed through a cover component. The tobacco juice in the liquid storage cavity reaches the heating core assembly through a liquid inlet hole formed in the tube wall of the lower end of the air guide tube. The air duct is used for forming a part of an air channel, and the smoke generated by the heating core component is conveyed to a user through the cover component and the cigarette holder (or called a dropping nozzle, the cigarette holder can also be a part of the cover component). The lower end of the air duct is fixedly connected with the liquid storage shell, so that the air duct forms a central column in the oil storage shell. The upper end of the air duct is matched with the cover component, after the tobacco juice is injected into the oil storage cavity, the cigarette holder is covered, at the moment, the upper end of the air duct has a pre-guiding function, and the cover component is guided to be installed in place so as to seal the liquid storage cavity.

In this prior art, when the center post is too short to provide a pre-guiding function, the cap assembly is difficult to install in place. The central column needs to be of sufficient length to be able to function as a pre-guide. However, the cover assembly has a long advancing stroke in the sealing process, so that the smoke liquid in the liquid storage cavity is easily extruded out from the liquid inlet hole, and the extruded smoke liquid is accumulated in the air channel to influence the normal smoking use or cause the liquid leakage (oil leakage) phenomenon. In addition, the central column is easy to install in place and also can be sealed, so that the requirement on the tolerance of the outer diameter of the central column is strict, the production and the processing are not easy, and the product yield is influenced.

SUMMERY OF THE UTILITY MODEL

The present disclosure is directed to an electronic atomizer, an air duct for an electronic atomizer, and an electronic cigarette, so as to at least solve the problem in the prior art that the smoke liquid is accumulated or leaked (oil leakage) in an air channel due to the fact that the smoke liquid is squeezed by the increase of the air pressure in a liquid storage cavity during the process of installing a cover assembly.

According to a first aspect of the present disclosure, there is provided an electronic atomizer comprising a reservoir assembly, a cap assembly and a gas channel, wherein the reservoir assembly comprises: a liquid storage housing; the air guide pipe is arranged in the liquid storage shell, a liquid storage cavity is defined between the liquid storage shell and the air guide pipe, the first end of the air guide pipe is directly or indirectly connected with the first end of the liquid storage shell to seal the first end of the liquid storage cavity, and the air channel penetrates through the air guide pipe; the heating core assembly is arranged in the gas channel and receives liquid from the liquid storage cavity through the liquid channel, wherein the cover assembly is at least partially embedded into the second end of the gas guide tube and the second end of the liquid storage shell to seal the second end of the liquid storage cavity, the electronic atomizer further comprises a ventilation structure, the ventilation structure enables the electronic atomizer to have a first state corresponding to at least partial embedding stroke of the cover assembly and a second state corresponding to embedding of the cover assembly in place, gas in the liquid storage cavity is discharged through the ventilation structure in the first state, and gas in the liquid storage cavity is sealed and isolated from the outside in the second state.

In the embodiment, the ventilation structure is utilized to discharge the gas in the liquid storage cavity in the process of mounting the cover assembly, so that the internal and external air pressures of the liquid storage cavity are balanced, and the phenomenon that the smoke liquid is accumulated or leaked (leaked) in the air channel due to the fact that the smoke liquid is extruded due to the increase of the internal air pressure of the liquid storage cavity can be avoided. For this purpose, the venting structure may be provided at any location, not limited to the air duct (e.g., either on the reservoir housing or on the cap assembly itself), nor in the form of a U-shaped channel (e.g., a one-way valve provided on the cap assembly).

According to the second aspect of the present disclosure, there is further provided an electronic atomizer, wherein the second end of the reservoir housing and/or the air duct has a guide section for guiding the cap assembly to be embedded, and the ventilation structure is a through channel provided on the guide section and penetrating through a wall of the guide section.

In this embodiment, through set up the through passage who runs through the wall of guide section on the guide section of liquid storage casing and/or air duct for when installation lid subassembly is in order to seal the liquid storage chamber, the air in the liquid storage chamber can be discharged through the through passage, like this, just can avoid or reduce through simple structure because make the liquid that reaches the heating core subassembly via liquid channel too much and the tobacco juice that leads to accumulates or the weeping phenomenon in the air passage to the extrusion of liquid.

According to a third aspect of the present disclosure, there is further provided an electronic atomizer, wherein a through channel is provided on the airway tube, comprising: the U-shaped grooves are opened towards the second end part of the air guide tube, and the second end part of the air guide tube is far away from the first end of the air guide tube and/or the through holes.

In this embodiment, different forms of venting structure are provided. No matter which kind of ventilation structure, the homoenergetic plays the effect of the inside and outside atmospheric pressure of air duct of in-process balance at installation lid subassembly 1 to avoid or reduce owing to the extrusion to liquid.

Moreover, the U-shaped groove and the through hole have the characteristics of simple structure and easiness in processing.

In addition, where a U-shaped channel is employed (particularly where a plurality of U-shaped channels are employed), the leading section of the airway tube is at least partially resilient, so that the port of the airway tube (the end of the leading section) has some inward resilience to facilitate engagement with a cooperating structure on the cap assembly combination, and thus easier guidance.

In the present disclosure, the U-shaped groove is formed on the tube wall of the air duct, and includes two opposite groove side walls and a groove bottom wall connecting the two groove side walls, and an open groove having an open end opened toward the end of the air duct is formed at an end opposite to the groove bottom wall.

According to a fourth aspect of the present disclosure, further, there is provided an electronic atomizer, wherein the liquid storage housing includes a housing bottom wall and a housing side wall, a bottom wall connection hole and a bottom wall recess located at an upper end of the bottom wall connection hole are formed on the housing bottom wall, the air duct includes a first duct section and a second duct section, the first duct section is located at a first end of the air duct, and a diameter of the first duct section is greater than a diameter of the second duct section to form a receiving cavity for receiving the heat generating core assembly in the first duct section, the first duct section includes a first duct section connection portion and a first duct section flange located at an upper end of the first duct section connection portion, the heat generating core assembly is disposed in the receiving cavity of the first duct section of the air duct, a through hole is disposed at a position corresponding to the heat generating core assembly on the first duct section to form the liquid passage, wherein the first tube section connection is inserted into the bottom wall connection aperture and the first tube section flange is located in the bottom wall recess.

In this embodiment, the first end of the air duct can be securely and fixedly attached to the first end of the reservoir housing and the air duct can be better maintained in position in the reservoir housing to facilitate alignment of the cover assembly with the second end of the air duct by engagement of the first duct section attachment portion with the bottom wall mounting hole and engagement of the first duct section flange with the bottom wall recess.

In this embodiment, the housing bottom wall and the housing side wall may be formed as a single body or may be formed as separate bodies, for example, the housing bottom wall may be formed by a single base member and the housing side wall may be formed by a single tubular member, so that the single base member is fixedly mounted to the bottom end of the tubular member.

According to a fifth aspect of the present disclosure, there is further provided an electronic atomizer, wherein a bottom wall central hole is formed on the bottom wall of the housing, the heater core assembly has a heater core central hole, the airway tube has an airway tube central hole, the cap assembly has a cap assembly central hole, and the bottom wall central hole, the heater core central hole, the airway tube central hole and the cap assembly central hole are coaxially arranged to define the gas channel together; the shell body further comprises a bottom wall ring groove surrounding the bottom wall center hole, the first pipe section further comprises a first pipe section tail end, and the first pipe section tail end of the first pipe section is embedded into the bottom wall ring groove.

In this embodiment, the gas-guide tube can be more firmly fixed by embedding the end of the first tube section in the annular groove of the bottom wall. In addition, the bottom wall central hole, the heating core central hole, the air guide pipe central hole and the cover component central hole are coaxially arranged, so that air can be better guided to flow along the air channel.

According to a sixth aspect of the present disclosure, there is further provided an electronic atomizer, wherein the cap assembly includes a cap body having a cap body central bore and a cap body recess surrounding the cap body central bore and a cap body ring groove extending from the cap body recess in an axial direction of the cap body central bore, and a cap seal having a cap seal central bore and a cap seal sealing portion surrounding the cap seal central bore and a cap seal connecting portion extending from the cap seal sealing portion in the axial direction of the cap seal central bore, the cap seal connecting portion being embedded in the cap body ring groove, an axial length of the cap seal connecting portion being greater than an axial length of the cap seal sealing portion, the cap body central bore and the cap seal central bore being coaxially arranged to collectively define a cap assembly central bore, the central hole of the cover sealing piece is matched with the outer surface of the air guide tube, and the corresponding ends of the central hole of the cover sealing piece and the air guide tube are respectively provided with a guide inclined plane.

In this embodiment, since the lid seal connecting portion is embedded in the lid body ring groove, the lid seal and the lid body are firmly joined together. In addition, the axial length of the cover sealing piece connecting part is larger than that of the cover sealing piece sealing part, so that the combination of the cover sealing piece and the cover body is firmer and more reliable. In addition, the ends of the cap seal central bore and the airway tube that correspond to each other each have a leading bevel, allowing the cap assembly to better align and engage the airway tube during the snap-in installation process.

According to a seventh aspect of the present disclosure, there is provided an air duct for an electronic atomizer, wherein the air duct has a first end and a second end, wherein the first end of the air duct forms an accommodating cavity for accommodating a heat generating core assembly of the electronic atomizer, and a liquid channel communicated with the accommodating cavity is formed on a wall of the air duct; the second end of the air duct is provided with a guide section for guiding a cover assembly of the electronic atomizer, the guide section is provided with a ventilation structure, and the ventilation structure is a through channel penetrating through the wall of the guide section.

In this embodiment, through set up the through-channel that runs through the wall of guide segment on the guide segment of air duct for when the installation lid subassembly is in order to seal the stock solution chamber of electronic atomizer, the air in the stock solution chamber can be discharged through the through-channel, and like this, can avoid or reduce through simple structure because make the liquid that reaches the heating core subassembly via liquid channel too much and the tobacco juice that leads to accumulates or the weeping phenomenon in the air passage to the extrusion of liquid.

According to an eighth aspect of the present disclosure, further, there is provided an airway tube, wherein the airway tube comprises a first tube section and a second tube section, the diameter of the first tube section is larger than the diameter of the second tube section, the receiving cavity is formed on the first tube section, the through channel is formed on the second tube section, the through channel comprises one or more U-shaped grooves, the U-shaped grooves open towards a second end of the airway tube, the second end is remote from the first end of the airway tube.

In this embodiment, where a U-shaped channel is employed (particularly where a plurality of U-shaped channels are employed), the leading section of the airway tube is at least partially resilient, so that the port of the airway tube (the end of the leading section) has some inward resilience to more easily engage with a mating formation on the cap assembly combination and thus more easily achieve a guiding effect.

According to a ninth aspect of the present disclosure, there is further provided an airway tube, wherein the airway tube comprises a first tube section and a second tube section, the first tube section is located at a first end of the airway tube, the first tube section has a diameter larger than that of the second tube section, and the first tube section comprises a first tube section connecting portion and a first tube section flange located at an upper end of the first tube section connecting portion.

In this embodiment, the first end of the air guide tube can be securely and fixedly connected to the first end of the reservoir housing of the electronic atomizer by the first tube segment connecting portion and the first tube segment flange, and the position of the air guide tube in the reservoir housing can be better maintained to facilitate alignment of the cover assembly with the second end of the air guide tube when the cover assembly is installed.

According to a tenth aspect of the present disclosure, there is further provided an electronic atomiser comprising an airway tube according to any of the preceding seventh to ninth aspects.

Because the air duct is provided with the ventilation structure, the phenomenon of accumulation or leakage of smoke liquid in the air channel can be effectively avoided or reduced.

According to an eleventh aspect of the present disclosure, there is further provided an electronic cigarette comprising the electronic atomizer according to any one of the preceding first to sixth aspects and the tenth aspect.

In the embodiment, the ventilating structure is arranged on the air duct, so that the phenomenon of accumulation or leakage of smoke liquid in the electronic cigarette in the air channel can be effectively avoided or reduced.

Various advantages, aspects and novel features of the disclosure, as well as details of an illustrated embodiment thereof, will be more fully understood from the following description and drawings.

Drawings

Fig. 1 shows a schematic perspective exploded view of an electronic atomizer according to an embodiment of the present disclosure.

Fig. 2 shows a schematic cross-sectional structural view of an electronic atomizer according to an embodiment of the present disclosure.

Fig. 3 shows a perspective view of a gas tube for an electronic atomizer according to an embodiment of the present disclosure.

Fig. 4 shows a perspective view of another form of airway for an electronic atomizer according to an embodiment of the present disclosure.

Detailed Description

See fig. 1 and 2. Fig. 1 shows a schematic perspective exploded view of an electronic atomizer according to an embodiment of the present disclosure, and fig. 2 shows a schematic sectional view of the electronic atomizer of the embodiment.

As can be seen from fig. 1 and 2, the electronic atomizer according to this embodiment includes a liquid reservoir assembly 1, a cap assembly 2, and a gas passage a defining a gas flow path. The air flow path is shown by the dotted arrows in fig. 2. The liquid storage assembly 1 comprises a liquid storage shell 11, an air duct 12 and a heating core assembly 13. The cap assembly 2 includes a cap body 21 and a cap seal 22.

In the liquid storage assembly 1, the air duct 12 is arranged in the liquid storage shell 11, a liquid storage cavity 14 is defined between the liquid storage shell 11 and the air duct 12, a first end (lower end in fig. 2) of the air duct 12 is directly or indirectly connected with a first end (lower end in fig. 2) of the liquid storage shell 11 to close the first end of the liquid storage cavity 14, and the air passage A passes through the air duct 12; and the heat generating core assembly 13 is arranged in the gas channel A and receives the liquid from the liquid storage cavity 14 through a liquid channel (see an inlet hole 126 in fig. 2), wherein the cover assembly 2 is at least partially embedded between the second end (the upper end in fig. 2) of the gas guide pipe 12 and the second end (the upper end in fig. 2) of the liquid storage shell 11 to seal the second end of the liquid storage cavity 14, and the electronic atomizer further comprises a ventilation structure (see a U-shaped groove 127 in fig. 3 and a through hole 128 in fig. 4), the ventilation structure enables the electronic atomizer to have a first state corresponding to at least partial embedding stroke of the cover assembly 1 and a second state corresponding to embedding in-place of the cover assembly, in the first state, the gas in the liquid storage cavity 14 is discharged through the ventilation structure, and in the second state, the gas in the liquid storage cavity 14 is sealed and isolated from the outside.

In this embodiment, the ventilation structure is utilized to exhaust the gas in the liquid storage cavity 14 during the process of mounting the cap assembly, so that the internal and external air pressures in the liquid storage cavity 14 are balanced, and the phenomenon of accumulation or leakage (oil leakage) of the smoke liquid in the air channel caused by the smoke liquid extruded by the increase of the air pressure in the liquid storage cavity 14 can be avoided. In practice, the venting structure may be provided at any location for this purpose, not limited to the air duct (e.g., either on the reservoir housing or on the cap assembly itself), nor in the form of a U-shaped channel (e.g., a one-way valve provided on the cap assembly).

The second end of the airway tube 12 has a lead section into which the lead cap assembly 2 is inserted and the venting means is a through passage provided in the lead section through the wall of the lead section, which may be, for example, a U-shaped slot 127 in figure 3 or a through hole 128 in figure 4.

Of course, the reservoir housing 11 also has a guide section for guiding the cover assembly, so that in an embodiment not shown, the through-channel can also be provided on the reservoir housing.

Through set up the through passage who runs through the wall of guide section on the guide section of stock solution casing 11 and/or air duct 12 for when installation lid subassembly 1 is in order to seal stock solution chamber 14, the air in stock solution chamber 14 can be discharged through the through passage, and like this, just can avoid or reduce through simple structure owing to make the too much and the tobacco juice that leads to of liquid channel arrival heater core subassembly in the air passage accumulation or weeping phenomenon to liquid through the extrusion to liquid.

Fig. 3 and 4 show perspective views of two forms of airway tubes for electronic nebulizers according to embodiments of the present disclosure.

Referring to fig. 3, two U-shaped grooves 127 are formed on the airway tube 12 as ventilation structures, and the U-shaped grooves 127 penetrate through the wall of the airway tube and are open toward the upper end of the airway tube 12. As can be seen in fig. 3, the bottom wall of the U-shaped channel extends over the air duct to a position as close as possible to the end of the insertion stroke of the cap assembly to provide a balance of air pressure inside and outside the reservoir over most of the insertion stroke.

The utility model provides a U type groove is formed on the pipe wall of air duct, including two relative groove lateral walls and a tank bottom wall of connecting two groove lateral walls to the open slot of the open end of tip direction that forms towards the air duct is being relative with the tank bottom wall.

In other embodiments not shown, the number of U-shaped slots 127 may be one or more than two.

Referring to fig. 4, a through hole 128 is provided on the airway tube 12 as a ventilation structure, and the through hole 128 penetrates through the wall of the airway tube. As can be seen in fig. 4, the through hole 128 is provided in the air duct as close as possible to the end of the insertion stroke of the cap assembly to provide for equalization of air pressure inside and outside the reservoir chamber for most of the insertion stroke. The number of the through holes 128 may be one or more.

In this embodiment, different forms of venting structure are provided. Whichever type of vent structure, the vent structure can play a role in balancing the air pressure inside and outside the air duct 12 in the process of mounting the cap assembly 1, thereby avoiding or reducing the liquid extrusion.

Moreover, the U-shaped groove and the through hole have the characteristics of simple structure and easiness in processing.

In addition, where a U-shaped channel 127 is employed, particularly where a plurality of U-shaped channels 127 are employed, such as in the two opposing arrangement shown in fig. 3, the leading section of the airway tube 12 is at least partially resilient, so that the port of the airway tube 12 (the end of the leading section) has some inward resilience to more easily engage with a mating structure on the cap assembly combination and thus more easily achieve a guiding effect.

Referring to fig. 2, the liquid storage case 11 includes a case bottom wall 111 and a case side wall 112, and the case bottom wall 111 is formed with a bottom wall connection hole 111a and a bottom wall recess 111b at an upper end of the bottom wall connection hole 111 a.

The airway tube 12 comprises a first tube section 121 and a second tube section 122, the first tube section 121 being located at a first end of the airway tube 12, and the diameter of the first tube section 121 being larger than the diameter of the second tube section 122 to form a receiving cavity in the first tube section 121 for receiving the heater core assembly 13.

The first pipe section 121 includes a first pipe section connecting portion 121a and a first pipe section flange 121b at an upper end of the first pipe section connecting portion 121a, and the heat generating core assembly 13 is disposed in the receiving cavity of the first pipe section 121 of the air guide tube 12. Through holes are provided on the first tube section 121 at positions corresponding to the heat generating core assembly 13 to form liquid passages, wherein the first tube section connecting portion 121a is inserted into the bottom wall connecting hole 111a, and the first tube section flange 121b is located in the bottom wall recess 111 b.

By engaging the first tube section attachment portion 121a with the bottom wall mounting hole 111a and engaging the first tube section flange 121b with the bottom wall recess 111b, the first end of the air guide tube 12 can be securely and fixedly attached to the first end of the reservoir housing 11, and the position of the air guide tube 12 in the reservoir housing 11 can be better maintained to facilitate alignment of the cover assembly 2 with the second end of the air guide tube 11 when installed.

The housing bottom wall 111 and the housing side wall 112 may be formed as a single body, such as the structure shown in fig. 2, or may be formed as separate bodies, such as the housing bottom wall 111 may be formed by a single base member, and the housing side wall 112 may be formed by a single tubular member, so that the single base member is fixedly mounted on the bottom end of the tubular member.

With continued reference to fig. 2, a bottom wall central hole 115 is formed in the bottom wall 111 of the housing, the heat generating core assembly 13 has a heat generating core central hole, the airway tube 12 has an airway tube central hole, the cap assembly 2 has a cap assembly central hole, and the bottom wall central hole 115, the heat generating core central hole, the airway tube central hole and the cap assembly central hole are coaxially arranged to define a gas passage a together.

The bottom wall 111 of the housing is further formed with a bottom wall ring groove 111c surrounding the bottom wall center hole 115, and the first pipe section 121 further includes a first pipe section end 121c, and the first pipe section end 121c of the first pipe section 121 is embedded in the bottom wall ring groove 111 c.

By embedding the end 121c of the first tube section in the annular groove 111c of the bottom wall, the airway tube 12 can be more firmly fixed. In addition, the air can be better guided to flow along the air passage a by the coaxial arrangement of the bottom wall center hole 115, the heat generating core center hole, the air duct center hole, and the cap assembly center hole.

With continued reference to fig. 2, it can be seen that the cap assembly 2 includes a cap body 21 and a cap seal 22,

the cap body 21 has a cap body center hole and a cap body recess surrounding the cap body center hole and a cap body ring groove extending from the cap body recess in the axial direction of the cap body center hole.

The cap seal 22 has a cap seal center hole and a cap seal sealing portion surrounding the cap seal center hole and a cap seal connecting portion axially extending from the cap seal sealing portion along the cap seal center hole, corresponding to the structure of the cap body 21.

The lid seal attachment portion is embedded in the lid body annular groove.

In this embodiment, since the lid seal connecting portion is embedded in the lid body ring groove, the lid seal and the lid body are firmly bonded together.

Preferably, as shown in fig. 2, the axial length of the cap seal connecting portion is greater than the axial length of the cap seal sealing portion.

Because the axial length of the cover sealing piece connecting part is greater than that of the cover sealing piece sealing part, the combination of the cover sealing piece and the cover body is firmer and more reliable.

Preferably, as shown in FIG. 2, the cap body central bore and the cap seal central bore are coaxially arranged, collectively defining a cap assembly central bore. The central hole of the cap seal is fitted with the outer surface of the airway tube 12, and the ends of the central hole of the cap seal and the airway tube 12 corresponding to each other have guide slopes, respectively.

Since the ends of both the cap seal central bore and airway tube 12, which correspond to each other, have respective guiding ramps, the cap assembly is better aligned and engaged with the airway tube during the insertion installation process.

An electronic cigarette according to the present disclosure includes the electronic atomizer of any of the foregoing embodiments or includes the airway of any of the foregoing embodiments. Because the air duct is provided with the ventilation structure, the phenomenon of accumulation or leakage of smoke liquid in the electronic cigarette in the air channel can be effectively avoided or reduced, and the use experience of a user is improved.

While the disclosure has been described with reference to certain embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the scope of the disclosure. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the disclosure without departing from the scope thereof. Therefore, it is intended that the disclosure not be limited to the particular embodiments disclosed, but that the disclosure will include all embodiments falling within the scope of the appended claims.

Claims (11)

1. An electronic atomizer, which comprises a liquid storage component (1), a cover component (2) and a gas channel (A), and is characterized in that,

wherein the reservoir assembly (1) comprises:

a liquid storage case (11);

the air duct (12) is arranged in the liquid storage shell (11), a liquid storage cavity (14) is defined between the liquid storage shell (11) and the air duct (12), the first end of the air duct (12) is directly or indirectly connected with the first end of the liquid storage shell (11) to seal the first end of the liquid storage cavity (14), and the air channel (A) penetrates through the air duct (12);

a heat generating core assembly (13) disposed in the gas passage (A) and receiving liquid from the reservoir chamber (14) through a liquid passage,

wherein the cap assembly (2) is at least partially embedded between the second end of the gas conduit (12) and the second end of the reservoir housing (11) to close the second end of the reservoir chamber (14),

the electronic atomizer further comprises a ventilation structure, wherein the ventilation structure enables the electronic atomizer to have a first state corresponding to at least partial embedding stroke of the cover assembly and a second state corresponding to embedding of the cover assembly in place, in the first state, gas in the liquid storage cavity (14) is discharged through the ventilation structure, and in the second state, gas in the liquid storage cavity (14) is sealed and isolated from the outside.

2. The electronic atomizer of claim 1,

the second end of the liquid storage shell (11) and/or the air guide pipe (12) is provided with a guide section for guiding the cover assembly (2) to be embedded, and the ventilation structure is a through channel which is arranged on the guide section and penetrates through the wall of the guide section.

3. An electronic atomiser according to claim 2, wherein the through passage is provided in the airway tube (12) and comprises:

one or more U-shaped grooves (127), wherein the U-shaped grooves (127) are opened towards the second end part of the air duct (12), and the second end part is far away from the first end of the air duct (12), and/or

One or more through holes (128).

4. The electronic atomizer of claim 2,

the liquid storage shell (11) comprises a shell bottom wall (111) and a shell side wall (112), a bottom wall connecting hole (111a) and a bottom wall recess (111b) positioned at the upper end of the bottom wall connecting hole (111a) are formed on the shell bottom wall (111),

the air duct (12) comprises a first duct section (121) and a second duct section (122), the first duct section (121) is positioned at the first end of the air duct (12), the diameter of the first duct section (121) is larger than that of the second duct section (122) so as to form a containing cavity for containing the heating core assembly (13) in the first duct section (121), the first duct section (121) comprises a first duct section connecting part (121a) and a first duct section flange (121b) positioned at the upper end of the first duct section connecting part (121a),

the heating core assembly (13) is arranged in an accommodating cavity of a first pipe section (121) of the air duct (12), a through hole is arranged on the first pipe section (121) corresponding to the heating core assembly (13) to form the liquid channel,

wherein the first pipe section connecting portion (121a) is inserted into the bottom wall connecting hole (111a), and the first pipe section flange (121b) is located in the bottom wall recess (111 b).

5. The electronic atomizer of claim 4,

a bottom wall central hole (115) is formed in the bottom wall (111) of the shell, the heating core assembly (13) is provided with a heating core central hole, the air guide pipe (12) is provided with an air guide pipe central hole, the cover assembly (2) is provided with a cover assembly central hole, and the bottom wall central hole (115), the heating core central hole, the air guide pipe central hole and the cover assembly central hole are coaxially arranged to define the gas channel (A) together;

the shell bottom wall (111) is further provided with a bottom wall ring groove (111c) surrounding the bottom wall center hole (115), the first pipe section (121) further comprises a first pipe section tail end (121c), and the first pipe section tail end (121c) of the first pipe section (121) is embedded in the bottom wall ring groove (111 c).

6. The electronic atomizer of claim 1,

the cap assembly (2) comprises a cap body (21) and a cap seal (22),

the cap body (21) having a cap body central hole and a cap body recess surrounding the cap body central hole and a cap body ring groove extending from the cap body recess in an axial direction of the cap body central hole,

the cap seal (22) having a cap seal central bore and a cap seal sealing portion surrounding the cap seal central bore and a cap seal attachment portion extending axially from the cap seal sealing portion along the cap seal central bore,

the lid seal attachment portion is embedded in the lid body annular groove,

the cap seal connecting portion has an axial length greater than an axial length of the cap seal sealing portion,

the cover body central hole and the cover sealing piece central hole are coaxially arranged to jointly limit a cover assembly central hole, the cover sealing piece central hole is matched with the outer surface of the air guide pipe (12), and the end parts, corresponding to each other, of the cover sealing piece central hole and the air guide pipe (12) are respectively provided with a guide inclined surface.

7. An air duct for an electronic atomiser, the air duct (12) having a first end and a second end,

the first end of the air duct (12) forms an accommodating cavity for accommodating a heating core component (13) of the electronic atomizer, and a liquid channel communicated with the accommodating cavity is formed on the wall of the air duct (12);

the electronic atomizer is characterized in that the second end of the air guide tube (12) is provided with a guide section for guiding a cover assembly (2) of the electronic atomizer, the guide section is provided with a ventilation structure, and the ventilation structure is a through channel penetrating through the wall of the guide section.

8. A gas line according to claim 7,

the gas guide tube (12) comprises a first tube section (121) and a second tube section (122), the diameter of the first tube section (121) is larger than that of the second tube section (122),

said housing cavity being formed on said first tubular section (121), said through passage being formed on said second tubular section (122),

the through channel comprises one or more U-shaped grooves (127), wherein the U-shaped grooves (127) are opened towards the second end part of the air guide tube (12), and the second end part is far away from the first end of the air guide tube (12).

9. A gas line according to claim 8,

the gas guide tube (12) comprises a first tube section (121) and a second tube section (122), the first tube section (121) is positioned at the first end of the gas guide tube (12), the diameter of the first tube section (121) is larger than that of the second tube section (122),

the first pipe section (121) includes a first pipe section connecting portion (121a) and a first pipe section flange (121b) at an upper end of the first pipe section connecting portion (121 a).

10. An electronic atomiser, comprising a gas-guide tube according to any of claims 7 to 9.

11. An electronic cigarette, characterized in that it comprises an electronic atomizer according to any one of claims 1 to 6 and 10.

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