CN219613070U - Atomizer and aerosol generating device - Google Patents

Abstract

The embodiment of the utility model provides an atomizer and an aerosol generating device, wherein the atomizer comprises a shell, an atomizing core and a ventilation piece, wherein an air outlet channel communicated with the outside and a liquid storage cavity for storing aerosol generating matrixes are arranged in the shell; an atomizing core is at least partially located in the housing to atomize the aerosol-generating substrate; the ventilation piece comprises a first capillary tube, a second capillary tube and a sealing tube, wherein an oil seal channel for storing sealing liquid is arranged in the sealing tube, the first capillary tube and the second capillary tube are arranged at two opposite ends of the sealing tube, the first capillary tube is communicated with the oil seal channel and the liquid storage cavity, and the second capillary tube is communicated with the oil seal channel and the outside. The atomizer in the embodiment of the utility model plays a role in enabling the ventilation member to selectively communicate the outside with the liquid storage cavity by utilizing the pressure difference between the outside and the liquid storage cavity, and reduces the probability of leakage of aerosol generating substrate to the outside through the ventilation member by the first capillary tube and the second capillary tube.

Description

Atomizer and aerosol generating device

Technical Field

The utility model relates to the technical field of aerosol generation, in particular to an atomizer and an aerosol generation device.

Background

A reservoir for storing an aerosol-generating substrate is provided in the aerosol-generating device, and an atomizing wick in the aerosol-generating device is capable of heating the aerosol-generating substrate in the reservoir to form an aerosol, which is expelled through an exhaust passage in the aerosol-generating device and is inhaled by a user.

The aerosol generating device is provided with the ventilation channel which can enable the liquid storage cavity to be communicated with the outside, and outside air can enter the liquid storage cavity through the ventilation channel, so that negative pressure generated along with consumption of aerosol generating matrixes in the liquid storage cavity is reduced, the aerosol generating matrixes can smoothly flow in the liquid storage cavity and contact with the atomization core, and atomization of the aerosol generating matrixes is realized.

In the related art, since the ventilation channel communicates with the outside, the aerosol-generating substrate in the liquid storage chamber has a risk of leaking to the outside through the ventilation channel.

Disclosure of Invention

In view of the foregoing, it is desirable to provide a nebulizer and an aerosol-generating device that reduce leakage of aerosol-generating substrate in a reservoir.

In order to achieve the above object, the technical solution of the embodiment of the present utility model is as follows:

an embodiment of the present utility model provides an atomizer, including:

a housing in which is disposed a reservoir for Chu Cunqi sol-generating substrate;

an atomizing core located at least partially in the housing to atomize an aerosol-generating substrate;

the air exchanging piece comprises a first capillary tube, a second capillary tube and a sealing tube, wherein an oil seal channel for storing sealing liquid is arranged in the sealing tube, the first capillary tube and the second capillary tube are arranged at two opposite ends of the sealing tube, the first capillary tube is communicated with the oil seal channel and the liquid storage cavity, and the second capillary tube is communicated with the oil seal channel and the outside.

In some embodiments, the oil seal channel extends in a curved manner.

In some embodiments, the air exchange member is located at a top of the housing and the atomizing core is located at a bottom of the housing. In some embodiments, the outlet of the first capillary tube is directed toward the top wall of the reservoir.

In some embodiments, the inlet of the second capillary is higher than the outlet of the first capillary; and/or the outlet of the first capillary and the inlet of the second capillary are higher than the oil seal channel.

In some embodiments, the first capillary tube and the sealing tube are both located in the reservoir, and the second capillary tube passes through the housing such that a portion of the second capillary tube is located in the reservoir and another portion is located outside the housing; and/or the second capillary extends along the top-bottom direction, the top end of the second capillary is higher than the top surface of the shell, and the inlet of the second capillary is positioned at the top end of the second capillary.

In some embodiments, the first capillary and the second capillary extend along the top-bottom direction, the sealing tube is curved, one end of the sealing tube along the air flow direction is connected to the bottom end of the first capillary, and the other end is connected to the bottom end of the second capillary.

In some embodiments, the oil seal channel has a cross-sectional area perpendicular to the direction of gas flow that is greater than the cross-sectional area of the channel in the first capillary tube perpendicular to the direction of gas flow and greater than the cross-sectional area of the channel in the second capillary tube perpendicular to the direction of gas flow.

In some embodiments, the first capillary tube, the sealing tube, and the second capillary tube are an integrally formed structure.

The embodiment of the utility model also provides an aerosol-generating device comprising a power supply and the atomizer of any of the previous embodiments, the power supply being electrically connected to the atomizing core.

According to the atomizer disclosed by the embodiment of the utility model, the sealing oil film formed by the sealing liquid in the oil seal channel plays a role of enabling the ventilation member to be selectively communicated with the outside and the liquid storage cavity by utilizing the pressure difference between the outside and the liquid storage cavity, so that the probability of deterioration of aerosol generating matrixes caused by the entering of the outside foreign matters into the liquid storage cavity is reduced, the service life of the atomizer is prolonged, the user experience is improved, and meanwhile, an additional opening and closing structure is not required to be arranged in the ventilation member, so that the structure of the ventilation member is simplified, and the atomizer is more compact. Through the first capillary, on one hand, the flow of the aerosol generating substrate after entering the first capillary from the liquid storage cavity is blocked, the probability of the aerosol generating substrate flowing into the oil seal channel is reduced, and on the other hand, the flow of the sealing liquid in the oil seal channel after entering the first capillary is blocked, and the probability of the sealing liquid flowing into the liquid storage cavity is reduced; through the second capillary, the flow of sealing liquid or aerosol generating substrate after entering the second capillary from the oil seal channel is blocked, and then the probability that the aerosol generating substrate leaks to the outside through the ventilation piece is reduced, and the use experience of a user is improved.

Drawings

FIG. 1 is a schematic cross-sectional view of a atomizer according to an embodiment of the utility model;

fig. 2 is an enlarged schematic view of the position a in fig. 1, wherein the dashed arrow indicates the direction of the air flow.

Description of the reference numerals

A housing 10; a liquid storage chamber 10a; an outlet passage 10b; an atomizing core 20; a ventilation member 30; a first capillary 31; a second capillary 32; a seal tube 33; oil seal passage 33a

Detailed Description

It should be noted that, in the case of no conflict, the embodiments of the present utility model and the technical features of the embodiments may be combined with each other, and the detailed description in the specific embodiments should be interpreted as an explanation of the gist of the present utility model and should not be construed as unduly limiting the present utility model.

In the description of the present utility model, the terms "top" and "bottom" orientation or positional relationship are based on the orientation or positional relationship shown in fig. 1, and it should be understood that these orientation terms are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present utility model.

An embodiment of the present utility model provides an atomizer, referring to fig. 1 and 2, comprising a housing 10, an atomizing core 20, and a ventilation member 30.

An air outlet channel 10b communicating with the outside and a reservoir 10a for storing an aerosol-generating substrate are provided in the housing 10.

Aerosol-generating substrates include, but are not limited to, pharmaceutical products, nicotine-containing materials, or nicotine-free materials, and the like.

An atomizing core 20 is at least partially positioned in the housing 10 to atomize the aerosol-generating substrate.

The aerosol-generating substrate is capable of flowing in the liquid reservoir 10a so as to be continuously atomized by the atomizing core 20 to form an aerosol.

The particular manner in which the atomizing core 20 achieves atomizing the aerosol-generating substrate is not limited, e.g., the atomizing core 20 converts the aerosol-generating substrate to a gaseous state by heating; as another example, the atomizing core 20 breaks up and atomizes the aerosol-generating substrate by generating high frequency vibrations.

The aerosol generated by the atomization of the atomizing core 20 can be discharged to the outside through entering into the air outlet channel 10b and be inhaled by the user.

The specific manner in which the aerosol enters the outlet channel 10b is not limited, and for example, the atomizing core 20 is provided with pores for penetrating the aerosol-generating substrate, and the aerosol-generating substrate is infiltrated into the pores from the reservoir 10a and atomized into the aerosol, and the aerosol passes through the pores into the outlet channel 10 b.

It will be appreciated that by controlling the size of the pores and the porosity such that the atomizing core 20 is capable of absorbing a certain amount of aerosol-generating substrate, the rate of aerosol entering the air outlet channel 10b is limited to obtain a better atomizing effect and enhance the user experience.

The particular manner in which the atomizing core 20 is provided with the pores is not limited, e.g., the atomizing core 20 is at least partially a porous ceramic material.

It will be appreciated that as the aerosol-generating substrate in the reservoir 10a is consumed, the air pressure in the reservoir 10a gradually decreases, which if no air is supplied into the reservoir, will result in a negative pressure in the reservoir which will affect the flow of aerosol-generating substrate to the atomizing core 20.

To this end, in the embodiment of the present utility model, the ventilation member 30 includes a first capillary tube 31, a second capillary tube 32 and a sealing tube 33, wherein an oil seal channel 33a for storing sealing liquid is provided in the sealing tube 33, the first capillary tube 31 and the second capillary tube 32 are provided at opposite ends of the sealing tube 33, the first capillary tube 31 communicates with the oil seal channel 33a and the liquid storage chamber 10a, the second capillary tube 32 communicates with the oil seal channel 33a and the outside, that is, the first capillary tube 31 is located at a downstream end of the oil seal channel 33a in the air flow direction, and the second capillary tube 32 is located at an upstream end of the oil seal channel 33a in the air flow direction.

By arranging the oil seal channel 33a for storing sealing liquid, under the condition that the pressure difference between the outside and the liquid storage cavity 10a is lower than the preset pressure difference value, a sealing oil film is formed in the oil seal channel 33a, the first capillary tube 31 and the second capillary tube 32 by utilizing the surface tension of the sealing liquid, so that the liquid storage cavity 10a and the outside are isolated, and the probability that foreign matters such as outside bacteria and dust enter the liquid storage cavity 10a is reduced; under the condition that the pressure difference between the outside and the liquid storage cavity 10a is not lower than the preset pressure difference, the outside air can break through the sealing oil film and enter the liquid storage cavity 10a, so that the ventilation piece 30 is communicated with the outside and the liquid storage cavity 10a, the pressure difference between the outside and the liquid storage cavity 10a is balanced, the aerosol generating substrate can smoothly flow to the atomization core 20, and the atomization effect is improved; after the pressure difference between the outside and the liquid storage cavity 10a is reduced to be lower than the preset pressure difference value again, the sealing liquid forms a sealing oil film again so as to isolate the liquid storage cavity 10a from the outside. That is, the automatic adjustment of the communication between the outside and the liquid storage chamber 10a is achieved by the magnitude of the pressure difference between the outside and the liquid storage chamber 10a.

The aerosol-generating substrate within the reservoir 10a is able to flow into the air exchange member 30, and when the aerosol-generating substrate enters the first capillary tube 31 and the second capillary tube 32, capillary action due to the surface tension of the aerosol-generating substrate itself impedes the flow of the aerosol-generating substrate in the first capillary tube 31 and the second capillary tube 32.

The atomizer in the embodiment of the utility model plays a role of enabling the ventilation member 30 to selectively communicate the outside with the liquid storage cavity 10a by utilizing the pressure difference between the outside and the liquid storage cavity 10a through the sealing oil film formed by the sealing liquid in the oil seal channel 33a, reduces the probability of deterioration of aerosol generating matrixes caused by the entering of the outside foreign matters into the liquid storage cavity 10a, prolongs the service life of the atomizer, improves the user experience, and meanwhile, does not need to provide an additional opening and closing structure in the ventilation member 30, thereby simplifying the structure of the ventilation member 30 and enabling the structure of the atomizer to be more compact. By the first capillary tube 31, on one hand, the flow of the aerosol-generating substrate from the liquid storage cavity 10a into the first capillary tube 31 is blocked, the probability of the aerosol-generating substrate flowing into the oil seal channel 33a is reduced, and on the other hand, the flow of the sealing liquid in the oil seal channel 33a into the first capillary tube 31 is blocked, and the probability of the sealing liquid flowing into the liquid storage cavity 10a is reduced; through the second capillary tube 32, the flow of the sealing liquid or the aerosol-generating substrate from the oil seal channel 33a into the second capillary tube 32 is blocked, so that the probability of leakage of the sealing liquid or the aerosol-generating substrate to the outside through the ventilation member 30 is reduced, and the use experience of a user is improved.

It will be appreciated that the sealing liquid may be the same substance as the aerosol-generating substrate to avoid contamination of the aerosol-generating substrate by the sealing liquid entering the reservoir 10a; in addition, even if the aerosol-generating substrate flows into the oil seal channel 33a through the first capillary tube 31, on the one hand, the oil seal channel 33a can accumulate the flowing aerosol-generating substrate, reducing the probability of the aerosol-generating substrate flowing into the second capillary tube 32, and on the other hand, the flowing aerosol-generating substrate not only does not contaminate the sealing liquid existing in the oil seal channel 33a, but also plays a role of replenishing the sealing liquid, thereby prolonging the service life of the ventilation member 30.

In some embodiments, referring to fig. 2, the oil seal channel 33a is curved to extend so as to extend the flow path of the oil seal channel 33a, reducing the chance of aerosol-generating substrate leaking to the environment through the ventilation member 30.

In some embodiments, referring to fig. 1, the outlet of the air outlet channel 10b is located at the top of the atomizer, so that the user can hold the atomizer during aerosol inhalation, and the user can use the atomizer conveniently.

It can be appreciated that the aerosol-generating substrate and the sealing liquid have a higher viscosity and poorer flowability at lower temperatures; the aerosol-generating substrate and the sealing liquid have lower viscosity and better fluidity in a state of higher temperature. Thus, the heat generated by the atomizing core 20 has an effect on the flowability of the aerosol-generating substrate and the sealing liquid.

For this reason, in some embodiments, referring to fig. 1, the ventilation member 30 is located at the top of the housing 10, and the atomizing core 20 is located at the bottom of the housing 10, on one hand, during the aerosol sucking process of the user, the aerosol generating substrate flows downward under the action of gravity, so that the aerosol generating substrate is convenient to contact with the atomizing core 20 and be converted into aerosol, and the atomization effect is improved; on the other hand, the mounting position of the ventilation member 30 is far away from the atomizing core 20, so that the probability of improving the fluidity of the aerosol-generating substrate near the ventilation member 30 and the aerosol-generating substrate and the sealing liquid in the ventilation member 30 due to the influence of the heat generated in the working process of the atomizing core 20 is reduced, and the probability of leakage of the aerosol-generating substrate and the sealing liquid flowing out of the atomizer through the ventilation member 30 is reduced.

In some embodiments, referring to fig. 1 and 2, the outlet of the first capillary tube 31 is directed toward the top wall of the liquid storage chamber 10a, so that the aerosol-generating substrate in the liquid storage chamber 10a is difficult to enter the ventilation member 30 from the outlet of the first capillary tube 31 during the aerosol sucking process, and the leakage rate of the aerosol-generating substrate flowing out of the atomizer through the ventilation member 30 is reduced.

It will be appreciated that the relative positional relationship of the inlet of the second capillary tube 32 and the outlet of the first capillary tube 31 is advantageous in reducing the risk of leakage of the aerosol-generating substrate.

Illustratively, referring to fig. 1 and 2, the inlet of the second capillary tube 32 is higher than the outlet of the first capillary tube 31, so that it is difficult for the aerosol-generating substrate to rise to the outlet of the first capillary tube 31 and flow out, thereby reducing the chance of leakage of the aerosol-generating substrate.

It will be appreciated that the particular arrangement of the breather 30 on the housing 10 is not limited.

For example, referring to fig. 1 and 2, the first capillary tube 31 and the sealing tube 33 are both located in the liquid storage cavity 10a, so that the casing 10 can protect the first capillary tube 31 and the sealing tube 33 to a certain extent, and adverse effects on the ventilation member 30 caused by external bumps are reduced. The second capillary tube 32 passes through the housing 10 such that a part of the second capillary tube 32 is located in the liquid storage chamber 10a and another part is located outside the housing 10, so that the second capillary tube 32 can communicate with the outside and the sealing tube 33, and the part of the second capillary tube 32 located in the liquid storage chamber 10a is protected.

It will be appreciated that the location where the second capillary tube 32 passes through the housing 10 requires a sealing process to reduce the chance of aerosol-generating substrate leakage from that location. The specific manner of the sealing process to be adopted is not limited, and for example, a seal ring is interposed at this position; as another example, a sealant bond is used between the second capillary 32 and the housing 10.

It will be appreciated that the top surface of the housing 10 is provided with a mounting through hole into which the second capillary tube 32 is secured.

It will be appreciated that the inlet of the second capillary tube 32 is located at a portion of the second capillary tube 32 located outside the housing 10, and the portion protrudes from the outer surface of the housing 10, which is beneficial to prompting the user of the position of the air inlet of the air exchange member 30, reducing the probability of shielding the air inlet of the air exchange member 30 due to the holding of the user, so that the external air can smoothly enter the liquid storage chamber 10a under the condition that the pressure difference between the external environment and the liquid storage chamber 10a is not lower than the preset pressure difference value.

In some embodiments, referring to fig. 1 and fig. 2, the first capillary tube 31 and the second capillary tube 32 extend along the top-bottom direction, the sealing tube 33 is curved, one end of the sealing tube 33 along the airflow direction is connected to the bottom end of the first capillary tube 31, and the other end is connected to the bottom end of the second capillary tube 32, so that in the process of sucking aerosol by a user, the aerosol generating substrate entering the ventilation member 30 can flow downwards under the action of gravity, thereby further reducing the leakage probability of the aerosol generating substrate and improving the user experience.

It will be appreciated that the number of bends of the sealing tube 33 is not limited, for example, referring to fig. 1, the sealing tube 33 is bent once; as another example, the sealing tube 33 is bent a plurality of times.

It is understood that the oil seal passage 33a extends in accordance with the bending direction of the seal tube 33.

It will be appreciated that the outlet of the first capillary tube 31 is located at the top end of the first capillary tube 31 to reduce the chance of aerosol-generating substrate entering the air exchange 30.

It will be appreciated that the configuration of the breather 30 is required to inhibit the outflow of sealing fluid from the oil seal passage 33 a.

For example, referring to fig. 2, the outlet of the first capillary tube 31 and the inlet of the second capillary tube 32 are higher than the oil seal channel 33a, so that the sealing liquid can accumulate in the oil seal channel 33a under the action of gravity during the use process of a user, the probability that the sealing performance of the ventilation member 30 is reduced due to the fact that the sealing liquid flows out of the oil seal channel 33a through the first capillary tube 31 and the second capillary tube 32 is reduced, and the service life is prolonged.

In some embodiments, referring to fig. 1, the second capillary tube 32 extends in the top-bottom direction, the top end of the second capillary tube 32 is higher than the top surface of the housing 10, and the inlet of the second capillary tube 32 is located at the top end of the second capillary tube 32, that is, the inlet of the second capillary tube 32 is higher than any position in the liquid storage chamber 10a in the top-bottom direction, so that even if the liquid storage chamber 10a is filled with the aerosol-generating substrate, the aerosol-generating substrate is difficult to directly overflow from the inlet of the second capillary tube 32, and the probability of leakage of the aerosol-generating substrate is reduced.

It will be appreciated that the specific dimensions of the tip of the second capillary tube 32 above the top surface of the housing 10 are not limited, e.g., 1mm (millimeter), 1.5mm, 2mm, etc., and are determined by the relative positions of the tip of the liquid storage chamber 10a and the tip of the second capillary tube 32.

It will be appreciated that the sealing fluid may completely fill the oil seal channel 33a to increase the volume of sealing fluid as much as possible, thereby improving the service life; it is also possible to not completely fill the oil seal passage 33a and allow air to enter the oil seal passage 33a in advance, that is, there is a certain amount of bubbles in the sealing liquid in the oil seal passage 33a, so that the sealing liquid is more favorable to be inflated to form a sealing oil film after the external air enters the oil seal passage 33 a.

It will be appreciated that it is necessary to suppress the capillary action of the sealing liquid in the oil seal passage 33a so that the air flow can pass smoothly through the oil seal passage 33a and the sealing liquid forms a sealing oil film under the action of the air flow.

In some embodiments, referring to fig. 2, the cross-sectional area of the oil seal channel 33a along the direction perpendicular to the air flow is larger than the cross-sectional area of the channel in the first capillary tube 31 along the direction perpendicular to the air flow, and the cross-sectional area of the oil seal channel 33a along the direction perpendicular to the air flow is larger than the cross-sectional area of the channel in the second capillary tube 32 along the direction perpendicular to the air flow, so that part of the bubbles in the bubbles formed by the sealing oil film cannot leave the oil seal channel 33a due to the larger size in the process of flowing the air flow into the liquid storage cavity 10a through the air exchange member 30, the amount of the bubbles formed by the sealing oil film in the oil seal channel 33a entering the liquid storage cavity 10a from the first capillary tube 31 is reduced, thereby reducing the loss of the sealing liquid, and reducing the leakage rate of the sealing liquid to the outside through the second capillary tube 32.

The specific shape of the oil seal passage 33a in the cross section perpendicular to the air flow direction, the passage in the first capillary 31 in the cross section perpendicular to the air flow direction, and the passage in the second capillary 32 in the cross section perpendicular to the air flow direction is not limited. For example, referring to fig. 2, all three are circular in shape, the diameter of the cross section of the oil seal channel 33a in the direction perpendicular to the air flow is larger than the diameter of the cross section of the channel in the first capillary 31 in the direction perpendicular to the air flow, and the diameter of the cross section of the oil seal channel 33a in the direction perpendicular to the air flow is larger than the diameter of the cross section of the channel in the second capillary 32 in the direction perpendicular to the air flow, i.e., D1 > D2, and D1 > D3, for the purpose that the cross section of the oil seal channel 33a in the direction perpendicular to the air flow is larger than the cross section of the channel in the first capillary 31 in the direction perpendicular to the air flow, and the cross section of the oil seal channel 33a in the direction perpendicular to the air flow is larger than the cross section of the channel in the second capillary 32 in the direction perpendicular to the air flow.

The cross-sectional dimensions of the first capillary 31 and the second capillary 32 may be the same or different.

In the embodiment in which the channels in the first and second capillaries 31, 32 are circular in cross-sectional shape perpendicular to the direction of the air flow, the diameter of the cross-section thereof ranges in size from 0.1mm to 0.5mm, for example, 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, and the like. The specific value is selected according to the magnitude of the preset pressure difference.

The specific materials of the first capillary 31, the second capillary 32, and the sealing tube 33 are not limited, and may be glass, stainless steel, or the like.

In some embodiments, the first capillary 31, the sealing tube 33 and the second capillary 32 are split structures, i.e., the first capillary 31, the sealing tube 33 and the second capillary 32 are spliced.

In some embodiments, the first capillary tube 31, the sealing tube 33 and the second capillary tube 32 are integrally formed, so as to reduce the seam in the ventilation member 30, reduce the leakage probability of the sealing liquid from the ventilation member 30, and simplify the manufacturing process of the atomizer without additional assembly process of the ventilation member 30.

The embodiment of the present utility model also provides an aerosol-generating device comprising a power supply and the atomizer of any of the preceding embodiments, the power supply being electrically connected to the atomizing core 20, the power supply providing electrical energy to the atomizing core 20 to cause the atomizing core 20 to operate.

The specific type of power source is not limited, such as a lithium battery or the like.

The various embodiments/implementations provided by the utility model may be combined with one another without contradiction.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. An atomizer, the atomizer comprising:

a housing having a reservoir for storing an aerosol-generating substrate therein;

an atomizing core located at least partially in the housing to atomize an aerosol-generating substrate;

the air exchanging piece comprises a first capillary tube, a second capillary tube and a sealing tube, wherein an oil seal channel for storing sealing liquid is arranged in the sealing tube, the first capillary tube and the second capillary tube are arranged at two opposite ends of the sealing tube, the first capillary tube is communicated with the oil seal channel and the liquid storage cavity, and the second capillary tube is communicated with the oil seal channel and the outside.

2. The atomizer of claim 1 wherein said oil seal passage extends in a curved manner.

3. The atomizer of claim 1 wherein said air exchange member is located at a top portion of said housing and said atomizing core is located at a bottom portion of said housing.

4. A nebulizer as claimed in claim 3, wherein the outlet of the first capillary tube is directed towards the top wall of the reservoir.

5. The nebulizer of claim 1, wherein an inlet of the second capillary is higher than an outlet of the first capillary; and/or the outlet of the first capillary and the inlet of the second capillary are higher than the oil seal channel.

6. The nebulizer of claim 1, wherein the first capillary tube and the sealing tube are both located in the reservoir, the second capillary tube passing through the housing such that a portion of the second capillary tube is located in the reservoir and another portion is located outside the housing; and/or the second capillary extends along the top-bottom direction, the top end of the second capillary is higher than the top surface of the shell, and the inlet of the second capillary is positioned at the top end of the second capillary.

7. The atomizer of claim 1 wherein said first capillary tube and said second capillary tube each extend in a top-bottom direction, said sealing tube being curved, one end of said sealing tube in a gas flow direction being connected to a bottom end of said first capillary tube, the other end being connected to a bottom end of said second capillary tube.

8. The atomizer of claim 1 wherein a cross-sectional area of said oil seal channel in a direction perpendicular to the gas flow is greater than a cross-sectional area of said channel in said first capillary in a direction perpendicular to the gas flow and greater than a cross-sectional area of said channel in said second capillary in a direction perpendicular to the gas flow.

9. The nebulizer of claim 1, wherein the first capillary tube, the sealing tube, and the second capillary tube are an integrally formed structure.

10. An aerosol-generating device comprising a power source and the atomizer of any one of claims 1 to 9, the power source being electrically connected to the atomizing core.