CN217065382U

CN217065382U - Atomizer and aerosol generating device

Info

Publication number: CN217065382U
Application number: CN202122298822.0U
Authority: CN
Inventors: 邱伟华
Original assignee: Changzhou Paiteng Electronic Technology Co Ltd
Current assignee: Changzhou Paiteng Electronic Technology Co Ltd
Priority date: 2021-09-22
Filing date: 2021-09-22
Publication date: 2022-07-29
Anticipated expiration: 2031-09-22
Also published as: WO2023045586A1

Abstract

The utility model provides an atomizer and aerosol generating device, the atomizer includes base, stock solution spare and atomization component, has seted up the air inlet on the base, has formed the stock solution chamber in the stock solution spare, atomization component includes fixing base and atomizing core, the atomizing core connects in the atomizing chamber, the atomizing core heats and atomizes the aerosol formation substrate that is provided by the stock solution chamber after the circular telegram, and the smog that forms after the atomizing is exported under the drive of the gas that the air inlet was introduced; the fixing seat is formed with an air return channel which is communicated between the air inlet and the liquid storage cavity. The utility model discloses the atomizer, the structure is formed with the return air passageway on the fixing base, and stock solution intracavity aerosol forms the matrix and after consuming, can mend the outside air through the return air passageway, avoids stock solution intracavity to form the negative pressure, and the realization is liquid smoothly down, prevents atomizing core dry combustion method, improves aerosol generating device's security performance.

Description

Atomizer and aerosol generating device

Technical Field

The utility model belongs to the technical field of the simulation smoking, in particular, relate to an atomizer and aerosol generating device.

Background

The aerosol generating device generally includes an atomizer and a power supply device electrically connected to the atomizer, and the atomizer is capable of heating and atomizing an aerosol-forming substrate stored in a liquid storage cavity of the atomizer under an electrically driven action of the power supply device, so as to be inhaled by a user.

Currently, aerosol generating devices are in use because the aerosol-forming substrate in the reservoir chamber is continuously consumed by the atomizing core (e.g., ceramic core) of the atomizer, causing negative pressure in the reservoir chamber to cause unsmooth discharge of liquid, which in turn causes the atomizing core to supply insufficient liquid to cause dry burning. After the atomizing core is dried, not only can bad smell be generated, but also the safe use of the aerosol generating device can be influenced.

SUMMERY OF THE UTILITY MODEL

Based on the above-mentioned problem that exists among the prior art, one of the purposes of the utility model is to provide a prevent that the stock solution intracavity from producing the negative pressure and leading to down liquid not smooth, improve the atomizer of aerosol generating device security performance.

In order to achieve the above object, the utility model adopts the following technical scheme: there is provided a nebulizer for an aerosol generating device, the nebulizer comprising:

the base is provided with an air inlet;

a reservoir coupled to the base, the reservoir having a reservoir cavity formed therein for storing an aerosol-forming substrate; and

the atomizing assembly is connected to the base in a matching mode and comprises a fixed seat and an atomizing core, an atomizing cavity communicated with the liquid storage cavity and the air inlet is formed in the fixed seat, the atomizing core is connected in the atomizing cavity in a matching mode, the atomizing core can heat and atomize aerosol provided by the liquid storage cavity to form a substrate after being electrified, and smoke formed after atomization is output under the driving of air introduced by the air inlet;

the fixing seat is provided with an air return channel, and the air return channel is communicated between the air inlet and the liquid storage cavity.

Furthermore, the fixing seat comprises a base and a liquid sealing part, the base is supported on the base and provided with an inner cavity for forming the atomizing cavity, an air return groove is formed in the outer wall surface of the base, and the liquid sealing part is sleeved on the outer side of the base, so that the inner side wall of the liquid sealing part and the air return groove are surrounded to form the air return channel.

Furthermore, the air return groove is arranged on the outer wall surface of the base and is arranged along the circumferential direction of the base in a labyrinth structure.

Furthermore, a smoke outlet is formed in the top of the base, a communicating air passage is further constructed on the outer wall surface of the base, and the communicating air passage is communicated between the atomizing cavity and the smoke outlet.

Further, the air inlet end of the air return channel is communicated with the lower end of the communicating air passage communicated with the atomizing cavity, and the air outlet end of the air return channel is communicated with the liquid storage cavity.

Further, the liquid seal is configured to form a bottom of the liquid storage cavity.

Further, the liquid sealing part is liquid sealing silica gel sleeved outside the base.

Furthermore, the base comprises a bottom wall and a side wall formed by extending the outer edge of the bottom wall in the same direction, two bosses are convexly formed on two opposite inner side surfaces of the side wall, and the atomizing assembly is supported on the two bosses; the atomizer still includes imbibition spare, imbibition spare sets up in two between the boss, just imbibition spare is located atomization component's below.

Furthermore, the atomization assembly also comprises an atomization core sealing piece, the atomization core is sleeved in the atomization core sealing piece, and the atomization core sealing piece are supported on the two bosses together; seal and seted up first feed liquor hole on the liquid spare, the second feed liquor hole has been seted up on the base, the third feed liquor hole has been seted up on the atomizing core sealing member, first feed liquor hole the second feed liquor hole and the common intercommunication in third feed liquor hole forms the drainage the stock solution intracavity aerosol forms the matrix flow direction the inlet channel of atomizing core.

Further, the base comprises a bottom wall and a side wall formed by extending the outer edge of the bottom wall towards the same direction, the bottom wall and the side wall jointly surround to form the cavity, and at least part of the base is accommodated in the cavity.

Further, the liquid sealing piece comprises a liquid sealing pad and a liquid sealing sleeve, the liquid sealing pad is used for being constructed to form the bottom of the liquid storage cavity, the liquid sealing sleeve is formed by extending the outer edge of the liquid sealing pad towards the base, the liquid sealing sleeve is sleeved on the outer side of the base, so that the inner side wall of the liquid sealing sleeve and the air return groove are surrounded to form the air return channel, the base is provided with a first end and a second end, the first end is used for supporting the base, the second end is used for supporting the liquid sealing pad and deviating from the base, one surface, facing the base, of the liquid sealing pad is supported on the end surface of the second end, an air guide structure is arranged between the surface, facing the base, of the liquid sealing pad and the end surface of the second end and used for conveying air introduced by the air return channel to the liquid storage cavity, and the air guide structure is communicated between the air return channel and the liquid storage cavity.

Furthermore, a protruding structure is convexly arranged on one surface, facing the base, of the liquid sealing pad, and a part, deviating from the liquid sealing pad, of the protruding structure abuts against the end surface of the second end, so that an air guide gap is formed between the liquid sealing pad and the base, and the air guide gap forms the air guide structure; or a raised structure is convexly arranged on the end face of the second end, and the part of the raised structure departing from the base abuts against one surface, facing the base, of the liquid sealing pad, so that an air guide gap is formed between the liquid sealing pad and the base, and the air guide gap forms the air guide structure.

Further, the protruding structure comprises at least one bump or pillar.

Furthermore, the height of the salient points or the convex columns is 0.1-0.2 mm.

Furthermore, one end of the convex point or the convex column, which is used for matching and abutting against, is hemispherical; or the convex points or the convex columns are arranged into convex cambered surfaces in a matching and abutting mode with the end surfaces of the abutting ends.

Furthermore, an air guide groove is concavely arranged on one surface, facing the base, of the liquid sealing pad, one surface, facing the base, of the liquid sealing pad is attached to the end surface of the second end, so that the end surface of the second end and the air guide groove are enclosed to form an air guide channel, and the air guide channel forms the air guide structure; or, the end face of the second end is concavely provided with an air guide groove, the liquid sealing pad faces towards one face of the base and is attached to the end face of the second end, so that the liquid sealing pad faces towards one face of the base and the air guide groove to form an air guide channel in a surrounding mode, and the air guide channel forms the air guide structure.

Furthermore, the atomization assembly further comprises an atomization core sealing element sleeved on the atomization core, a first liquid inlet hole is formed in the liquid sealing pad, a second liquid inlet hole is formed in the base, a third liquid inlet hole is formed in the atomization core sealing element, the first liquid inlet hole, the second liquid inlet hole and the third liquid inlet hole are communicated together to form drainage, aerosol in the liquid storage cavity forms a substrate flowing direction to the liquid inlet channel of the atomization core, and the first liquid inlet hole is communicated between the air guide structure and the liquid storage cavity.

Based on the above problems in the prior art, it is a second object of the embodiments of the present invention to provide an aerosol generating device having an atomizer provided by any of the above solutions.

In order to achieve the above object, the utility model adopts the following technical scheme: there is provided an aerosol generating device comprising an atomiser as provided in any of the above aspects.

The embodiment of the utility model provides an in above-mentioned one or more technical scheme, compare with prior art, have one of following beneficial effect at least:

the embodiment of the utility model provides an in atomizer and aerosol generating device, the atomizer is formed with the return air passageway through the structure on the fixing base to aerosol formation substrate in the stock solution intracavity is consumed the back, can mend the ambient air to the stock solution intracavity through the return air passageway, reaches the purpose of balanced stock solution intracavity air pressure difference, thereby avoids stock solution intracavity to form the negative pressure, and it is smooth and easy to realize down liquid, and then ensures that the confession liquid of atomizing core is sufficient, prevents atomizing core dry combustion method, improves the security performance that aerosol generating device used.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

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

FIG. 2 is a partially exploded schematic view of the atomizer shown in FIG. 1;

FIG. 3 is an exploded view of the atomizer shown in FIG. 1;

FIG. 4 is a cross-sectional view of the atomizer shown in FIG. 1;

FIG. 5 is a schematic view of the flow path of the gas stream in the return air passage of the atomizer shown in FIG. 1;

FIG. 6 is a bottom schematic view of the atomizer shown in FIG. 1;

FIG. 7 is a cross-sectional view of the atomizer shown in FIG. 6 taken along the direction B-B;

FIG. 8 is a cross-sectional view of the atomizer shown in FIG. 6 taken along the direction A-A;

fig. 9 is a schematic cross-sectional view of an atomizer according to another embodiment of the present invention;

FIG. 10 is a partially enlarged schematic view of FIG. 9;

fig. 11 is a partially exploded view of a fixing base according to another embodiment of the present invention;

fig. 12 is a schematic perspective view of a liquid sealing member according to another embodiment of the present invention;

FIG. 13 is a partially enlarged schematic view of FIG. 12;

fig. 14 is a schematic perspective view of an aerosol generating device according to an embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

1-a base; 11-an air inlet; 12-a bottom wall; 13-a side wall; 14-a boss;

2-liquid storage part; 21-a liquid storage cavity;

3-an atomizing component; 31-a fixed seat; 311-an atomizing chamber; 312-return air channel; 313-a base; 3131-smoke outlet; 3132-communicating the airway; 3133-a first end; 3134 — a second end; 3135-a second liquid inlet hole; 314-liquid seal; 3141-sealing the liquid pad; 3142-sealing liquid; 3143-a first inlet well; 315-air return tank; 32-an atomizing core; 33-atomizing core seal; 331-third liquid inlet hole;

4-a liquid absorbing member; 5-a raised structure; 6-an attracting magnet;

7-sealing ring; 8-an electrode;

100-an aerosol generating device; 10-an atomizer; 20-power supply means.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "connected" or "disposed" to another element, it can be directly on the other element or be indirectly connected to the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the phrases "in one embodiment," "in some embodiments," or "in some embodiments" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Referring to fig. 1, an embodiment of the present invention provides an aerosol generating device, where the aerosol generating device 100 includes an atomizer 10 and a power supply device 20 electrically connected to the atomizer 10, and when in use, the power supply device is used to provide electric energy to the atomizer 10, so as to heat an aerosol-forming substrate stored in the atomizer 10, and the aerosol-forming substrate is atomized under the heating action to form smoke for a user to inhale.

Referring to fig. 2, the atomizer 10 includes a base 1, a liquid storage member 2 and an atomizing assembly 3. Wherein, the base 1 is used for providing support for the installation of other parts of the atomizer 10, the liquid storage part 2 is connected to the base 1, and a liquid storage cavity 21 (as shown in fig. 4) for storing aerosol-forming substrate is formed in the liquid storage part, the atomizing assembly 3 is connected to the base 1 and is positioned in the gravity direction of the aerosol-forming substrate in the liquid storage cavity 21, the aerosol-forming substrate in the liquid storage cavity 21 can be heated and atomized to form smoke under the action of the power supply device providing electric energy to the atomizer 10 after flowing into the atomizing assembly 3, and the smoke is sucked under the suction action of a user.

Referring to fig. 3 and 4, the base 1 includes a bottom wall 12 and a side wall 13 formed by extending an outer edge of the bottom wall 12 in the same direction, and the bottom wall 12 and the side wall 13 together surround an inner cavity of the base 1. Wherein, the bottom wall 12 is provided with an air inlet 11 communicated with the outside for providing outside cold air for the atomizing assembly 3 under the suction action of the user. Two bosses 14 are convexly formed on two opposite inner side surfaces of the side wall 13, and the atomizing assembly 3 is supported on the two bosses 14.

Further, the atomizer 10 further includes an adsorption magnet 6, and the adsorption magnet 6 is coupled to the bottom wall 12 and at least partially exposed from a bottom surface of the bottom wall 12, so as to achieve detachable engagement between the atomizer 10 and the power supply device.

Still further, the base 1 further comprises a sealing ring 7 for sealing a gap between the base 1 and the liquid storage part 2.

The atomizing assembly 3 includes a fixing seat 31, an atomizing core 32 and an atomizing core sealing member 33. An atomizing cavity 311 communicated with the liquid storage cavity 21 and the air inlet 11 is formed in the fixed seat 31, the atomizing core 32 is sleeved in the atomizing core sealing element 33, and the atomizing core are supported on the two bosses 14 and are accommodated in the atomizing cavity 311.

Referring to fig. 3 and 5, the fixing base 31 is formed with an air return channel 312, and the air return channel 312 is communicated between the air inlet 11 and the liquid storage cavity 21, so that after the aerosol-forming substrate in the liquid storage cavity 21 is consumed, the air can be supplied to the outside through the air return channel 312 to balance the air pressure difference in the liquid storage cavity 21, thereby achieving smooth liquid discharge, further ensuring sufficient liquid supply of the atomizing core 32, preventing the atomizing core 32 from being burned dry, and improving the safety performance of the aerosol generating device 100.

Specifically, the fixing base 31 includes a base 313 and a liquid sealing member 314. The base 313 is supported on the base 1 and has an inner cavity configured to form an aerosolizing chamber 311. In this embodiment, and with particular reference to FIG. 4, the two bosses 14 are stepped in two steps, and the base 313 is supported on the two-step of the two bosses 14 away from the bottom wall 12. The atomizing core 32 is nested within an atomizing core seal 33, which together are supported on a step in the two bosses 14 adjacent the bottom wall 12 and are at least partially nested within the base 313.

The base 313 is substantially hollow and cylindrical, and has an air return groove 315 formed on an outer wall surface thereof. The liquid sealing member 314 is also substantially hollow and cylindrical, and is sleeved outside the base 313 to enclose the air return groove 315 to form the air return passage 312. In this embodiment, the liquid sealing member 314 is liquid sealing silica gel, which is sleeved outside the base 313 and configured to form the bottom of the liquid storage cavity 21, so as to prevent the aerosol matrix in the liquid storage cavity 21 from leaking, and to supplement the outside air, so as to balance the air pressure difference in the liquid storage cavity 21 and achieve smooth liquid discharge.

Referring to fig. 3, 6 and 7, a smoke outlet 3131 is formed at the top of the base 313, a communicating air passage 3132 is formed on the outer wall of the base 313, and the communicating air passage 3132 is communicated between the atomizing cavity 311 and the smoke outlet 3131, so that smoke generated by atomization can flow from the atomizing cavity 311 to the smoke outlet 3131 under the suction action of the user, so as to be inhaled by the user.

Referring to fig. 3 and 5, further, the air inlet end I of the air return passage 312 is connected to the lower end of the communicating air passage 3132, which is communicated with the atomizing cavity 311, and the air outlet end O of the air return passage 312 is connected to the liquid storage cavity 21, so that after the aerosol substrate is atomized by the heating action of the atomizing core 32 during the suction process of the user, part of the condensate generated during the process that the smoke flows to the oral cavity of the user through the communicating air passage 3132 and the smoke outlet 3131 can flow to the air return passage 312 through the tube wall of the communicating air passage 3132 under the action of gravity, and is absorbed and stored in the liquid storage cavity 21 through the air return passage 312, thereby preventing the user from sucking the condensate, reducing the noise generated by the flow of the condensate in the communicating air passage 3132, and improving the user experience.

Referring to fig. 3 and 4 again, further, the air return groove 315 is disposed along the circumferential labyrinth of the outer wall surface of the base 313, and the labyrinth structure is designed to effectively prevent the aerosol-forming substrate in the liquid storage cavity 21 from leaking to the outside through the air return channel 312, thereby improving the user experience.

The atomizer 10 further comprises an electrode 8, the electrode 8 being coupled to a bottom wall 12 of the base 1. The atomizing core seal 33 is substantially in the shape of a hollow cylinder with an open lower end, the heating surface and the electrical connection surface of the atomizing core 32 are exposed through the atomizing core seal 33, the electrical connection surface is electrically connected with the electrode 8, the electrical connection surface is used for providing electrical energy to the heating surface, and the heating surface is used for generating heat required by the atomized aerosol to form the substrate. In this particular embodiment, the atomizing core 32 is a porous ceramic core structure.

Referring to fig. 3, fig. 6 and fig. 8, further, a first liquid inlet hole 3143 is formed at the top of the liquid sealing member 314, a second liquid inlet hole 3135 is formed on the base 313, and a third liquid inlet hole 331 is formed on the atomizing core sealing member 33. Wherein, the first liquid inlet hole 3143, the second liquid inlet hole 3135 and the third liquid inlet hole 331 are communicated together to form a liquid inlet channel for guiding the aerosol-forming substrate in the liquid storage cavity 21 to flow to the atomizing core 32. During the smoking process, the atomizing core 32 atomizes the aerosol-forming substrate provided by the liquid storage cavity 21, and the mist formed after the atomization is output to the oral cavity of the user for smoking under the driving of the gas introduced from the gas inlet 11.

Referring to fig. 3 and 4 again, further, the atomizer 10 includes a liquid absorbing member 4, the liquid absorbing member 4 is disposed between the two bosses 14 and below the atomizing assembly 3 for absorbing the condensate dropped from the atomizing assembly 3.

The utility model discloses above-mentioned embodiment provides an atomizer 10, the structure is formed with return air passageway 312 on the fixing base 31, and stock solution intracavity 21 aerosol forms the matrix and after consuming, can mend into the outside air through return air passageway 312, avoids the interior negative pressure that forms of stock solution intracavity 21 to the atmospheric pressure difference in balanced stock solution intracavity 21 realizes that the lower liquid is smooth and easy, and then ensures that the confession liquid of atomizing core 32 is sufficient, prevents atomizing core 32 dry combustion method, improves aerosol generating device 100's security performance.

Referring to fig. 9 to 11, in another embodiment of the present invention, the liquid sealing member 314 includes a liquid sealing pad 3141 and a liquid sealing sleeve 3142, the liquid sealing sleeve 3142 is formed by extending the outer edge of the liquid sealing pad 3141 toward the base 1, and the liquid sealing sleeve 3142 is sleeved on the base 313, and the liquid sealing pad 3141 is configured to form the bottom of the liquid storage cavity 21 when supported on the base 313. When the liquid sealing sleeve 3142 is sleeved on the outer side of the base 313, the inner side wall 13 of the liquid sealing sleeve 3142 and the air return groove 315 can enclose to form the air return channel 312. Because the air return channel 312 is communicated between the air inlet 11 and the liquid storage cavity 21, after the aerosol forming substrate in the liquid storage cavity 21 is consumed, the air outside can be supplemented through the air return channel 312 to balance the air pressure difference in the liquid storage cavity 21, so that the liquid discharging is smooth, the sufficient liquid supply of the atomizing core 32 is further ensured, the atomizing core 32 is prevented from being burnt, and the safety performance of the aerosol generating device 100 is improved. The base 313 has a first end 3133 and a second end 3134 in the axial direction, the first end 3133 of the base 313 is used for supporting on the base 1, the second end 3134 of the base 313 is an end of the base 313 away from the base 1, and the second end 3134 of the base 313 is used for supporting the liquid sealing pad 3141. By adopting the above arrangement, while the liquid sealing sleeve 3142 is sleeved on the base 313, one surface of the liquid sealing pad 3141 facing the base 1 is supported on the end surface of the second end 3134 of the base 313, and an air guide structure is arranged between one surface of the liquid sealing pad 3141 facing the base 1 and the end surface of the second end 3134 of the base 313, and is communicated between the air return channel 312 and the liquid storage cavity 21. Under the condition that the liquid sealing pad 3141 is tightly attached to the end surface of the second end 3134 of the base 313, the air introduced from the air return channel 312 can be smoothly transferred to the liquid storage cavity 21 through the air guide structure, so as to balance the air pressure difference in the liquid storage cavity 21 and realize smooth and stable liquid discharge. Therefore, on one hand, the problem of unsmooth air return caused by poor assembly consistency of the liquid sealing element 314 and the base 313 can be effectively solved, and on the other hand, the defect that a good air return effect cannot be formed due to relatively small air pressure of introduced air in the air return channel 312 can be overcome.

Referring to fig. 12 to 13, in other embodiments of the present invention, a protrusion structure 5 is protruded from a surface of the liquid sealing pad 3141 facing the base 1, and a portion of the protrusion structure 5 away from the liquid sealing pad 3141 abuts against an end surface of the second end 3134 of the base 313, so that an air guiding gap is formed between the liquid sealing pad 3141 and the base 313, and the air guiding gap constitutes the air guiding structure. By providing the protrusion structure 5, the protrusion structure 5 and the end surface of the second end 3134 of the base 313 are in interference fit, so that a portion of the protrusion structure 5 away from the liquid sealing pad 3141 abuts against the end surface of the second end 3134 of the base 313, so that an air guiding gap is formed between the liquid sealing pad 3141 and the base 313, and the air guiding gap forms an air guiding structure communicated between the air returning channel 312 and the liquid storage cavity 21. Thus, under the condition that the liquid sealing pad 3141 is tightly attached to the end surface of the second end 3134 of the base 313, the gas introduced from the gas return channel 312 can be smoothly delivered to the liquid storage cavity 21 through the gas guide gap, so as to balance the pressure difference in the liquid storage cavity 21 and realize smooth and stable liquid discharge.

In other embodiments of the present invention, a protruding structure 5 is protruded from the end surface of the second end 3134 of the base 313, and a portion of the protruding structure 5 departing from the base 313 abuts against a surface of the liquid sealing pad 3141 facing the base 1, so that an air guiding gap is formed between the liquid sealing pad 3141 and the base 313, and the air guiding gap constitutes an air guiding structure. The arrangement of the protrusion structure 5 can make the protrusion structure 5 and the liquid sealing pad 3141 be in interference fit with each other on the surface facing the base 1, so that the portion of the protrusion structure 5 departing from the base 313 abuts against the surface of the liquid sealing pad 3141 facing the base 1, and an air guide gap is formed between the liquid sealing pad 3141 and the base 313, and the air guide gap forms an air guide structure communicated between the air return channel 312 and the liquid storage cavity 21. Thus, when the liquid sealing pad 3141 is tightly attached to the end surface of the second end 3134 of the base 313, the air introduced through the air returning channel 312 can be smoothly delivered to the liquid storage cavity 21 through the air guiding gap, so as to balance the air pressure difference in the liquid storage cavity 21 and achieve smooth and stable liquid discharging.

Referring to fig. 12 to 13, in other embodiments of the present invention, the protrusion structure 5 includes at least one protruding point or protruding pillar disposed on the liquid sealing pad 3141 or the base 313, and the height of the protruding point or protruding pillar is 0.1-0.2 mm, so that a space between the liquid sealing pad 3141 and the base 313 is formed to smoothly and stably convey the gas introduced into the gas return channel 312 to the liquid storage cavity 21, thereby ensuring the smoothness of the gas return and further ensuring the stability of the liquid discharge. In order to avoid scratching the liquid sealing pad 3141 or the base 313 by the bumps or the pillars, the ends of the bumps or the pillars for matching and abutting may be hemispherical, or the end surfaces of the ends of the bumps or the pillars for matching and abutting may be configured as convex arc surfaces. In some embodiments of the present invention, the number of the protruding points or the protruding columns is two. Of course, in other embodiments of the present invention, the number of the convex points or the convex columns may also be provided as a plurality, and a plurality of convex points or convex columns are arranged at intervals.

In other embodiments of the present invention, the side of the liquid sealing pad 3141 facing the base 1 is concavely provided with an air guiding groove, the side of the liquid sealing pad 3141 facing the base 1 is attached to the end surface of the second end 3134, the end surface of the second end 3134 and the air guiding groove can enclose to form an air guiding channel, and the air guiding channel constitutes an air guiding structure. The air guide groove is arranged such that when the side of the liquid sealing pad 3141 facing the base 1 is attached to the end surface of the second end 3134 of the base 313, the end surface of the second end 3134 of the base 313 and the air guide groove can enclose to form an air guide channel, and the air guide channel forms an air guide structure communicating between the air return channel 312 and the liquid storage cavity 21. Thus, under the condition that the liquid sealing pad 3141 is tightly attached to the end surface of the second end 3134 of the base 313, the gas introduced from the gas return channel 312 can be smoothly delivered to the liquid storage cavity 21 through the gas guide channel, so as to balance the pressure difference in the liquid storage cavity 21 and realize smooth and stable liquid discharge.

In other embodiments of the present invention, an air guiding groove is concavely disposed on the end surface of the second end 3134 of the base 313, and one surface of the liquid sealing pad 3141 facing the base 1 is attached to the end surface of the second end 3134 of the base 313, so that the one surface of the liquid sealing pad 3141 facing the base 1 and the air guiding groove are enclosed to form an air guiding channel, and the air guiding channel constitutes the above air guiding structure. The air guide groove is arranged such that when the surface of the liquid sealing pad 3141 facing the base 1 is attached to the end surface of the second end 3134 of the base 313, the surface of the liquid sealing pad 3141 facing the base 1 and the air guide groove can be enclosed to form an air guide channel, and the air guide channel forms an air guide structure communicated between the air return channel 312 and the liquid storage cavity 21. Thus, under the condition that the liquid sealing pad 3141 is tightly attached to the end surface of the second end 3134 of the base 313, the gas introduced from the gas return channel 312 can be smoothly delivered to the liquid storage cavity 21 through the gas guide channel, so as to balance the pressure difference in the liquid storage cavity 21 and realize smooth and stable liquid discharge.

In other embodiments of the present invention, a first groove is concavely disposed on the end surface of the second end 3134 of the base 313, and a second groove is concavely disposed at a position corresponding to the first groove on the surface of the liquid sealing pad 3141 facing the base 1, when the surface of the liquid sealing pad 3141 facing the base 1 is attached to the end surface of the second end 3134 of the base 313, the first groove on the base 313 and the second groove on the liquid sealing pad 3141 can form an air guide channel, and the air guide channel constitutes an air guide structure. In other embodiments of the present invention, an air guiding channel connected between the air returning channel 312 and the liquid storage cavity 21 is further disposed on the liquid sealing pad 3141 or the base 313, and the air guiding channel constitutes an air guiding structure.

Referring to fig. 11 and 12, in other embodiments of the present invention, the atomizing assembly 3 further includes an atomizing core sealing member 33 sleeved on the atomizing core 32, the liquid sealing pad 3141 has a first liquid inlet hole 3143, the base 313 has a second liquid inlet hole 3135, the atomizing core sealing member 33 has a third liquid inlet hole 331, the first liquid inlet hole 3143, the second liquid inlet hole 3135 and the third liquid inlet hole 331 are commonly connected to form a liquid inlet channel for guiding the aerosol in the liquid storage chamber 21 to flow toward the atomizing core 32, and the first liquid inlet hole 3143 is connected between the air guide structure and the liquid storage chamber 21. In the process of smoking, aerosol-forming substrate in the liquid storage cavity 21 can flow to the atomizing core 32 through the liquid inlet channel, the atomizing core 32 heats and atomizes the aerosol-forming substrate provided by the liquid storage cavity 21, and the atomized smoke is output to the oral cavity of the user under the driving of the gas introduced by the gas inlet 11 for smoking. It is understood that the atomizing core 32 may be, but is not limited to, a porous ceramic core structure, the atomizing core sealing member 33 may be, but is not limited to, a sealing silica gel, and the liquid sealing member 314 may be, but is not limited to, a sealing silica gel. When the liquid sealing member 314 is a liquid sealing silicone, the liquid sealing member 314 is a liquid sealing silicone member integrally formed by a liquid sealing pad 3141 and a liquid sealing sleeve 3142.

In other embodiments of the present invention, the base 1 includes a bottom wall 12 and a side wall 13 formed by extending the outer edge of the bottom wall 12 toward the same direction, the bottom wall 12 and the side wall 13 together surround to form a cavity, and the base 313 of the fixing seat 31 is at least partially accommodated in the cavity. Wherein, the bottom wall 12 of the base 1 is provided with an air inlet 11 for communicating the atomizing chamber 311 with the outside, and is used for providing outside cold air for the atomizing assembly 3 under the suction action of the user. Two bosses 14 are convexly formed on two opposite inner side surfaces of the side wall 13, and the atomizing assembly 3 is supported on the two bosses 14.

Referring to fig. 14, an aerosol generating device 100 according to an embodiment of the present invention includes an atomizer 10 for atomizing an aerosol-forming substrate and a power supply 20 for supplying power to the atomizer 10, the atomizer 10 is the atomizer 10 provided in any of the above embodiments, and the atomizer 10 is activated by the power supply 20 of the aerosol generating device 100. Since the aerosol generating device 100 according to the embodiment of the present invention has all the technical features of the atomizer 10 according to any one of the above embodiments, it has the same technical effects as the atomizer 10.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. An atomizer for an aerosol generating device, said atomizer comprising:

the base is provided with an air inlet;

the fixed seat is provided with a gas return channel, and the gas return channel is communicated between the gas inlet and the liquid storage cavity; the fixing base includes base and liquid sealing spare, the base support in on the base, liquid sealing spare including support in liquid sealing pad on the base with by the outer fringe of liquid sealing pad extends the liquid sealing cover that forms towards the base, liquid sealing pad orientation the one side of base with be equipped with between the base and be used for with the gas that the return-air passageway introduced is carried extremely the air guide structure of stock solution chamber.

2. The atomizer of claim 1, wherein said base has an inner cavity configured to form said atomizing chamber, an air return groove is formed on an outer wall surface of said base, and said liquid sealing member is sleeved on an outer side of said base, such that said air return channel is formed by an inner side wall of said liquid sealing member and said air return groove in an enclosing manner.

3. The atomizer of claim 2, wherein said air return grooves are formed in said outer surface of said base and are arranged in a labyrinth arrangement along the circumference of said base.

4. The atomizer of claim 2, wherein a smoke outlet is formed in the top of said base, and a communicating air passage is further formed in the outer wall surface of said base, said communicating air passage communicating between said atomizing chamber and said smoke outlet.

5. The atomizer according to claim 4, wherein an air inlet end of the air return channel is communicated with a lower end of the communicating air passage communicated with the atomizing chamber, and an air outlet end of the air return channel is communicated with the liquid storage chamber.

6. The nebulizer of claim 2, wherein the liquid seal is configured to form a bottom of the reservoir chamber.

7. The atomizer of claim 2, wherein said liquid seal is liquid seal silicone rubber fitted over said base.

8. The atomizer according to claim 2, wherein said base includes a bottom wall and a side wall extending in the same direction from an outer edge of said bottom wall, two bosses are formed on two opposite inner sides of said side wall, and said atomizing assembly is supported on said two bosses; the atomizer still includes imbibition spare, imbibition spare sets up in two between the boss, just imbibition spare is located atomization component's below.

9. The atomizer of claim 8, wherein said atomizing assembly further comprises an atomizing core seal, said atomizing core being nested within said atomizing core seal and said atomizing core seal together being supported on both of said bosses; seal and seted up first feed liquor hole on the liquid spare, the second feed liquor hole has been seted up on the base, the third feed liquor hole has been seted up on the atomizing core sealing member, first feed liquor hole the second feed liquor hole and the common intercommunication in third feed liquor hole forms the drainage the stock solution intracavity aerosol forms the matrix flow direction the inlet channel of atomizing core.

10. A nebulizer as claimed in any one of claims 2 to 7, wherein the base comprises a base wall and a side wall extending in the same direction from an outer edge of the base wall, the base wall and the side wall together enclosing a cavity, the base being at least partially received in the cavity.

11. The atomizer according to any one of claims 2 to 8, wherein the liquid sealing pad is configured to form a bottom of the reservoir, the liquid sealing sleeve is sleeved on an outer side of the base so that an inner side wall of the liquid sealing sleeve and the air return groove surround to form the air return passage, the base has a first end for supporting on the base and a second end for supporting the liquid sealing pad and away from the base, one surface of the liquid sealing pad facing the base is supported on an end surface of the second end, an air guide structure for conveying air introduced by the air return passage to the reservoir is provided between one surface of the liquid sealing pad facing the base and the end surface of the second end, and the air guide structure is communicated between the air return passage and the reservoir.

12. The atomizer according to claim 11, wherein a raised structure is convexly provided on a surface of the liquid seal pad facing the base, and a portion of the raised structure facing away from the liquid seal pad abuts against an end surface of the second end, so that an air guide gap is formed between the liquid seal pad and the base, and the air guide gap constitutes the air guide structure; or a raised structure is convexly arranged on the end face of the second end, and the part of the raised structure departing from the base abuts against one surface, facing the base, of the liquid sealing pad, so that an air guide gap is formed between the liquid sealing pad and the base, and the air guide gap forms the air guide structure.

13. The nebulizer of claim 12, wherein the projection structure comprises at least one bump or post.

14. The atomizer of claim 13, wherein the height of said protrusions or said posts is between 0.1 mm and 0.2 mm.

15. The atomizer according to claim 13, wherein an end of said convex point or said convex post for engaging and holding is disposed in a hemispherical shape; or the convex points or the convex columns are arranged into convex cambered surfaces in a matching and abutting mode with the end surfaces of the abutting ends.

16. The atomizer according to claim 11, wherein an air guide groove is concavely formed on a surface of the liquid sealing pad facing the base, and the surface of the liquid sealing pad facing the base is attached to the end surface of the second end, so that the end surface of the second end and the air guide groove enclose to form an air guide channel, and the air guide channel constitutes the air guide structure; or, the end face of the second end is concavely provided with an air guide groove, the liquid sealing pad faces towards one face of the base and is attached to the end face of the second end, so that the liquid sealing pad faces towards one face of the base and the air guide groove to form an air guide channel in a surrounding mode, and the air guide channel forms the air guide structure.

17. The atomizer of claim 11, wherein said atomizing assembly further comprises an atomizing core seal fitted over said atomizing core, said sealing pad defining a first inlet opening, said base defining a second inlet opening, said atomizing core seal defining a third inlet opening, said first inlet opening, said second inlet opening and said third inlet opening being cooperatively interconnected to form a fluid inlet channel for guiding aerosol-forming substrate in said fluid reservoir to flow toward said atomizing core, said first inlet opening being interconnected between said gas directing structure and said fluid reservoir.

18. An aerosol generating device comprising an atomiser as claimed in any one of claims 1 to 17.