Patent Description:
For an electronic atomization device of related art, such as an e-cigarette or a medical atomizer, condensation is prone to occur when atomizing gas comes into contact with an inner wall of the electronic atomization device. For example, condensate formed on an inner wall of an air outlet channel of the e-cigarette is likely to enter a user's mouth, causing a negative impact on the user experience. For the medical atomizer, and in particular, for a medical atomizer configured to deliver drugs to the lungs, atomizing gas carrying the drugs is condensed in the air outlet channel, causing drug loss. In addition, condensate droplets are easily formed not only in the air outlet channel, but also on other inner walls of the electronic atomization device contacted with the atomizing gas, and consequently, condensate leakage is prone to occur.

<CIT> discloses an electronic smoking article. The electronic smoking article includes a heater in communication with a liquid supply reservoir including liquid material and operable to heat the liquid material to a temperature sufficient to volatilize the liquid material contained therein and form an aerosol. The volatilized material flows through a sheath flow and aerosol promoter insert that is operable to cool the aerosol, reduce the particle size of the aerosol and increase the delivery rate of the aerosol.

<CIT> discloses a medical device for inhalation Aerosols. The medical device includes a tubular, preferably cylindrical housing with a recording chamber for aerosol containers, a mouthpiece connected to the housing, and a wall section with a blind bore.

<CIT> discloses an aerosol generator for an aerosol dispenser. The aerosol generator includes a housing having an inlet part including a liquid inlet configured to guide a liquid jet into the housing and an air inlet configured to guide an air flow into the housing. The housing further having an outlet part including an aerosol outlet configured to guide an aerosol, including liquid mixed with air, out of the housing; wherein the air inlet is configured such that at least part of the air flow entering the housing through the air inlet is obstructed at a distance from the liquid jet entering the housing through the liquid inlet, thereby creating a source of turbulence in the housing to interact with droplets of the liquid jet to prevent coalescence of the droplets.

<CIT> discloses a metered dose inhaler for use with a pressurized aerosol canister. The metered dose inhaler includes a housing defining a conduit with a mouthpiece, and an actuator with a nozzle discharge orifice arranged to discharge aerosol into the conduit. Vortex generators positioned within the wall of the conduit and in fluid communication with air inlets for receiving ambient outside air, provide the inner wall of the conduit with a circumferential-swirling turbulent boundary layer flow to minimize impaction of medication on the inner surfaces of the conduit.

<CIT> discloses a transition adapter component of a ventilator aerosol delivery system for delivering an aerosol to a patient. The transition adapter component includes a housing having a proximal end and a distal end, the proximal end having an aerosol passage for receiving an aerosol produced by a heated capillary and a gas connection port for receiving carrier gas from a ventilator, which is in communication with a plurality of gas entry ports within the transition adapter. An inner cavity of the transition adapter receives the aerosol from the heated capillary and the streams of carrier gas from a plurality of gas exit ports within the transition adapter and directs the streams of carrier gas at least partially encircling and in parallel with the aerosol. An exit port on the distal end of the transition adapter housing delivers an entrained aerosol to an aerosol delivery connector.

<CIT> discloses an aerosol-generating system. The aerosol-generating system has a mouth end and a distal end. The system includes a liquid storage portion that has a reservoir containing an aerosol- generating substrate. The system also includes a liquid transfer element to which the aerosol-generating substrate from the reservoir is transferable. The system further includes a power supply and a heating element operably coupled to the power supply and configured to heat the aerosol-generating substrate carried by the transport element to form an aerosol. The system also includes a cover disposed over the liquid storage portion and includes one or more air flow channels between the cover and the liquid storage portion. The system defines an aerosol flow path that extends at least from the liquid transport element to the mouth end of the system. In addition, the system further defines an air flow path through the one or more channels to the mouth end of the system.

<CIT> discloses methods, devices, systems, and computer readable medium for delivering one or more compounds to a subject. Also described herein are methods, devices, systems, and computer readable medium for transitioning a smoker to an electronic nicotine delivery device and for smoking or nicotine urge relief.

<CIT> discloses a smoking system. The smoking system includes a capillary wick for holding liquid, at least one air inlet, at least one air outlet and a chamber between the air inlet and air outlet. The air inlet, the air outlet and the chamber are arranged so as to define an air flow route from the air inlet to the air outlet via the capillary wick so as to convey aerosol formed from the liquid to the air outlet. The smoking system further includes at least one guide for channeling the air flow in the air flow route, so as to control particle size in the aerosol. The smoking system optionally includes at least one heater for heating the liquid in at least a portion of the capillary wick to form the aerosol.

<CIT> discloses an inhaler for medicament. The inhaler for medicament includes a housing adapted to receive a pressurised dispensing container of medicament. A mouth piece for insertion into the mouth of a user of the inhaler is connected by duct means to an outlet of the container. Air inlet means are provided for allowing air into the inhaler when a user applies suction to the mouth piece. The air inlet means are provided at a location axially between the air outlet for the duct means and the mouth piece and passage means are provided connecting the inlet to a location adjacent the outlet of the duct means. The arrangement is such that, in use, when a user inhales through the mouth piece an airflow is created from the inlet to the mouth piece and the airflow has a component directed away from the mouth piece towards the outlet of duct means.

<CIT> discloses a medical care atomizer with improved inner air currents. According to the medical care atomizer disclosed by the application, through a stopping member adopting an inversed truncated cone body structure, a special cavity structure and an outside air entering passage are arranged, so that fog granules with low particle diameter can be effectively screened and enter human bodies, and the atomization efficiency can also be improved.

In view of the, a technical problem to be mainly resolved in the present disclosure is to provide an electronic atomization device and an air-curtain formation structure applied thereto, to alleviate the problem of atomizing gas condensation. In all aspects, the electronic atomization device and the air-curtain formation structure are provided as set out in the appended set of claims.

Beneficial effects of the present disclosure are as follows: Compared with the related art, the present disclosure provides an electronic atomization device and an air-curtain formation structure used by the same. The air-curtain formation structure has an airflow channel configured to deliver atomizing gas. The airflow channel has a first air inlet channel, and the first air inlet channel is configured to introduce an external airflow into the airflow channel, so that a blocking airflow is formed between an inner wall of the airflow channel and the atomizing gas. In the present disclosure, the blocking airflow is used to block the inner wall of the airflow channel and the atomizing gas, so that the atomizing gas is contacted with the inner wall of the airflow channel as little as possible, the problem of atomizing gas condensation can be alleviated, and less condensate is generated, thereby improving the user experience, reducing drug loss, and reducing the risk of condensate leakage.

Accompanying drawings herein are incorporated into the specification and constitute a part of the specification, illustrate embodiments that conform to the present disclosure, and are used for describing a principle of the present disclosure together with the specification. In addition, the accompanying drawings and text descriptions are not intended to limit the scope of the idea of the present disclosure in any form, but to explain the concept of the present disclosure by referring to specific embodiments for a person skilled in the art.

In order to make the objects, technical solutions, and advantages of the present disclosure clearer, the technical solutions in the embodiments of the present disclosure will be clearly and comprehensively described below with reference to the embodiments of the present disclosure. Apparently, the described embodiments are only a part of the embodiments of the present disclosure, not all of them. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present disclosure without creative efforts shall fall within the protection scope of the present disclosure. The following embodiments and features in the embodiments may be combined with each other in case that no conflict occurs.

To resolve the technical problem of relatively severe atomizing gas condensation in the related art, an embodiment of the present disclosure provides an air-curtain formation structure for an electronic atomization device. The air-curtain formation structure includes an airflow channel configured to deliver atomizing gas. The air-curtain formation structure further includes a first air inlet channel communicated with the airflow channel, and the first air inlet channel is configured to introduce an external airflow into the airflow channel, so that a blocking airflow is formed between an inner wall of the airflow channel and the atomizing gas. Detailed descriptions are provided below.

Referring to <FIG> is a structural schematic view of a first embodiment of an atomization suction nozzle according to the present disclosure.

An exemplary embodiment in which the air-curtain formation structure is an atomization suction nozzle for the electronic atomization device is described below.

In the embodiment, the air-curtain formation structure is in a form of the atomization suction nozzle. The atomization suction nozzle provided in the embodiment is for electronic atomization devices such as an e-cigarette and a medical atomizer. Specifically, the atomization suction nozzle has an airflow channel <NUM>. The airflow channel <NUM> is configured to deliver atomizing gas. The atomization suction nozzle further has a first air inlet channel <NUM> communicated with the airflow channel <NUM>, and the first air inlet channel <NUM> is configured to introduce an external airflow into the airflow channel <NUM>, so that a blocking airflow is formed between an inner wall of the airflow channel <NUM> and the atomizing gas. The blocking airflows form an air curtain.

Further, the atomization suction nozzle further defines an air outlet <NUM> communicated with the airflow channel <NUM>, the first air inlet channel <NUM> is close to the inner wall of the airflow channel <NUM>, and an exit of the first air inlet channel <NUM> faces the air outlet <NUM>, to ensure that the airflow flowing into the airflow channel <NUM> through the first air inlet channel <NUM> can flow along the inner wall of the airflow channel <NUM>, that is, the blocking airflow is formed to block the atomizing gas and the inner wall of the airflow channel <NUM>, so that the atomizing gas may be contacted with the inner wall of the airflow channel <NUM> as little as possible, thereby alleviating the problem of atomizing gas condensation and reducing condensate generation.

Specifically, the atomization suction nozzle includes an airway body <NUM> and a suction nozzle portion. The suction nozzle portion includes a tube body <NUM>, and the airflow channel <NUM> is defined in the airway body <NUM> and the tube body <NUM>. An end of the tube body <NUM> away from the airway body <NUM> is the air outlet <NUM>. The first air inlet channel <NUM> is defined at a position of the airway body <NUM> close to an inner wall of the tube body <NUM>, to form a blocking airflow between the inner wall of the tube body <NUM> and the atomizing gas.

The airflow channel <NUM> includes an entrance channel <NUM> and an air guide channel <NUM>. The tube body <NUM> defines the air guide channel <NUM>. The airway body <NUM> is mounted at one end of the tube body <NUM>, the airway body <NUM> defines the entrance channel <NUM>, and the entrance channel <NUM> of the airway body <NUM> is communicated with the air guide channel <NUM> of the tube body <NUM>. The entrance channel <NUM> is configured to introduce the atomizing gas and deliver the atomizing gas into the air guide channel <NUM>.

Referring to <FIG> is an isometric structural schematic view of a first embodiment of an atomization suction nozzle according to the present disclosure. When the airway body <NUM> is mounted at one end of the tube body <NUM>, a part of the airway body <NUM> abuts against an end of the air guide channel <NUM> and covers a part of the air guide channel <NUM>. The first air inlet channel <NUM> communicated with the air guide channel <NUM> is provided at a position where the airway body <NUM> covers the air guide channel <NUM>. Alternatively, the airway body <NUM> includes a wall portion <NUM> abutting against one end of the air guide channel <NUM> and covering the part of the air guide channel <NUM>, and the first air inlet channel <NUM> is opened in the wall portion <NUM> and is communicated with the air guide channel <NUM>.

Condensate is easily formed on an inner wall of the air guide channel <NUM> due to moisture in the atomizing gas. The first air inlet channel <NUM> is provided, and air is introduced into the first air inlet channel <NUM>. When suction is performed on the atomization suction nozzle, that is, the atomizing gas is suctiond from the end of the tube body <NUM> away from the airway body <NUM>, an air pressure difference is formed inside the atomization suction nozzle, so that under the action of the air pressure difference, air entering through the first air inlet channel <NUM> is adhered to the inner wall of the air guide channel <NUM> and forms blocking airflows on the inner wall of the air guide channel <NUM> to block the atomizing gas and the inner wall of the air guide channel <NUM>, thereby reducing condensate formed by the atomizing gas on the inner wall of the air guide channel <NUM>. When suction is not performed on the atomization suction nozzle, there is no air pressure difference inside the atomization suction nozzle, and there is no blocking airflow formed on the inner wall of the air guide channel <NUM>.

Further, a flow direction of the blocking airflows is parallel to the inner wall of the airflow channel <NUM>, that is, the flow direction of the blocking airflows is parallel to the inner wall of the air guide channel <NUM>, and to be specific, the flow direction of the blocking airflows is parallel to the inner wall of the tube body <NUM>, to ensure a desirable effect of the blocking airflows for blocking the atomizing gas and the inner wall of the tube body <NUM>.

Alternatively, in order to enable the blocking airflows to be adhered to the inner wall of the air guide channel <NUM> to form an air curtain, in a specific embodiment, there may be a plurality of first air inlet channels <NUM>, and the plurality of first air inlet channels <NUM> are spaced in a circumferential direction of the wall portion <NUM>.

Referring to <FIG> together, <FIG> is a structural schematic view of first air inlet channels of an airway body of an atomization suction nozzle according to the present disclosure. The airway body <NUM> includes a wall portion <NUM> covering the air guide channel <NUM>. The first air inlet channels <NUM> are defined on the wall portion <NUM> and are communicated with the air guide channel <NUM>. As shown in <FIG>, there are a plurality of first air inlet channels <NUM> evenly arranged along the wall portion <NUM> in a circumferential direction. In a specific embodiment, the shape of the first air inlet channel <NUM> is not limited as long as air can flow into the air guide channel <NUM> through the first air inlet channels <NUM> during suction. In an alternative embodiment, the shape of the first air inlet channel <NUM> may be any one of or any combination of a square, a circle, or a triangle.

Further, the size of the first air inlet channel <NUM> is to be appropriately set when the first air inlet channels <NUM> are provided, so that air entering through the first air inlet channel <NUM> can form blocking airflows completely covering the inner wall of the air guide channel <NUM> on the inner wall of the air guide channel <NUM>.

Still referring to <FIG>, the airway body <NUM> of the atomization suction nozzle in the present disclosure includes a first airway portion <NUM>, a second airway portion <NUM>, and the wall portion <NUM> connecting the first airway portion <NUM> and the second airway portion <NUM> and covering a part of the air guide channel <NUM>. The entrance channel <NUM> is mainly defined in the first airway portion <NUM> and is communicated with the air guide channel <NUM>, and the second airway portion <NUM> is sleeved on an outer side of the tube body <NUM> of the suction nozzle portion. In a specific embodiment, the wall portion <NUM> abuts against one end of the air guide channel <NUM>. In another embodiment, there may be a gap between the wall portion <NUM> and one end of the air guide channel <NUM> as long as it can be ensured that atomizing gas will not leak out.

Alternatively, still referring to <FIG>, the first airway portion <NUM> further includes a vent portion <NUM> and a first connection portion <NUM>, the first connection portion <NUM> is arranged on one side of the wall portion <NUM> away from the second airway portion <NUM>, and the vent portion <NUM> is arranged on one side of the first connection portion <NUM> away from the wall portion <NUM>. A cross-sectional area of the first connection portion <NUM> is less than a cross-sectional area of the vent portion <NUM>, and the cross section is defined as a section perpendicular to an axial direction, similarly hereinafter. A clamping opening <NUM> is formed at a position where the first connection portion <NUM> is connected to the vent portion <NUM>, and the clamping opening <NUM> is configured to clamp an atomizing gas generation device (i. e a part of the electronic atomization device for generating atomizing gas, not shown in the figure). Further, referring to <FIG>, a comprehensive airway <NUM> is formed at the clamping opening <NUM>, so that air flows into the first air inlet channels <NUM> through the comprehensive airway <NUM> and then flows into the air guide channel <NUM> through the first air inlet channels <NUM>. During suction, after the air pressure difference is generated, blocking airflows are formed on the inner wall of the air guide channel <NUM> under the action of the air pressure difference. The blocking airflows block the atomizing gas and the air guide channel <NUM>, thereby reducing condensate formed by the atomizing gas in the air guide channel <NUM>.

Alternatively, in an implementation, the first airway portion <NUM>, the second airway portion <NUM>, and the wall portion <NUM> connecting the first airway portion <NUM> and the second airway portion <NUM> of the airway body <NUM> are integrally formed. In another implementation, the first airway portion <NUM>, the second airway portion <NUM>, and the wall portion <NUM> connecting the first airway portion <NUM> and the second airway portion <NUM> of the airway body <NUM> may also be formed through a welding process.

Alternatively, the second airway portion <NUM> of the airway body <NUM> is sleeved on the outer side of the tube body <NUM> of the suction nozzle portion. Specifically, in an implementation, the airway body <NUM> and the tube body <NUM> may be designed to be integrally formed. In another implementation, the second airway portion <NUM> may alternatively be sleeved on the outer side of the tube body <NUM> of the suction nozzle portion in a matching manner. In order to avoid atomizing gas from leaking out, the second airway portion <NUM> may be sleeved on the outer side of the tube body <NUM> of the suction nozzle portion in an interference-fitting manner.

In the atomization suction nozzle provided in the embodiment, the first air inlet channels <NUM> communicated with the air guide channel <NUM> are defined on the wall portion <NUM> covering the air guide channel <NUM>. When a suction action is performed on the tube body <NUM> and the atomizing gas flows into the air guide channel <NUM> through the entrance channel <NUM>, and air flows into the air guide channel <NUM> through the first air inlet channels <NUM>. The air entering through the first air inlet channels <NUM> may form blocking airflows on the inner wall of the air guide channel <NUM> under the action of the air pressure, to block the atomizing gas and the inner wall of the air guide channel <NUM>, thereby preventing the atomizing gas from forming condensate on the inner wall of the air guide channel <NUM>.

Referring to <FIG> is a structural schematic view of a second embodiment of an atomization suction nozzle according to the present disclosure. Compared with the first embodiment shown in <FIG>, the difference between the first embodiment and the second embodiment is that: in the embodiment, second air inlet channels <NUM> are defined on an outer side of the vent portion <NUM>. The second air inlet channels <NUM> are configured to increase a speed of discharging the atomizing gas, to further prevent the atomizing gas from forming condensate on the inner wall of the air guide channel <NUM>.

Alternatively, the second air inlet channel <NUM> has an air inlet portion <NUM> and an air guide portion <NUM>. Specifically, the air inlet portion <NUM> is arranged surrounding the vent portion <NUM> in a direction parallel to the wall portion <NUM>, an extending direction of the air guide portion <NUM> is parallel to an extending direction of the entrance channel <NUM>, and the air guide portion <NUM> is connected to an end of the air inlet portion <NUM> arranged in the vent portion <NUM>. Air enters through the air inlet portion <NUM> and flows into the air guide channel <NUM> through the air guide portion <NUM>.

Alternatively, referring to <FIG> is an isometric structural schematic view of a second embodiment of an atomization suction nozzle according to the present disclosure. The second air inlet channels <NUM> are defined in the vent portion <NUM>, and the first air inlet channels <NUM> are defined on the wall portion <NUM> connecting the first airway portion <NUM> and the second airway portion <NUM>. In a specific embodiment, when there is a suction force in the tube body <NUM> of the suction nozzle portion, the atomizing gas enters through the entrance channel <NUM>, and air enters through the second air inlet channels <NUM> and the first air inlet channels <NUM>. Referring to <FIG> is a bottom view of a second embodiment of an atomization suction nozzle according to the present disclosure. As shown in <FIG>, the first air inlet channels <NUM> are closer to the inner wall of the tube body <NUM> relative to the air guide portions <NUM> in the second air inlet channels <NUM>. Therefore, during suction, air enters through the first air inlet channels <NUM> and forms blocking airflows on the inner wall of the air guide channel of the tube body <NUM> of the suction nozzle portion under the action of the air pressure, to block the atomizing gas entering through the entrance channel <NUM> and the inner wall of the air guide channel, thereby reducing condensate formed by the atomizing gas on the inner wall of the air guide channel. Further, the second air inlet channels <NUM> are provided, air flows into the second air inlet channels <NUM> during suction, and the air increases the speed of discharging the atomizing gas entering through the entrance channel <NUM> from the air guide channel <NUM>, thereby further preventing the atomizing gas from forming condensate on the inner wall of the air guide channel.

Further, still referring to <FIG>, a clamping opening <NUM> is formed at a position where the first connection portion <NUM> is connected to the vent portion <NUM>, and the clamping opening <NUM> is configured to clamp an atomizing gas generation device (not shown in the figure). Further, a comprehensive airway <NUM> is formed at a position of the clamping opening <NUM>, so that air flows into the first air inlet channels <NUM> and the second air inlet channels <NUM> through the comprehensive airway <NUM> and then flows into the air guide channel <NUM> through the first air inlet channels <NUM>. During suction, after the air pressure difference is generated, blocking airflows are formed on the inner wall of the air guide channel <NUM> under the action of the air pressure difference. As shown in <FIG>, the blocking airflow (as shown by an arrow Q1 in <FIG>) blocks the atomizing gas (as shown by an arrow G in <FIG>) and the air guide channel <NUM>, thereby reducing condensate formed by the atomizing gas on the inner wall of the air guide channel <NUM>. Air flows into the air guide portions <NUM> through the second air inlet channels <NUM> and forms a second airflow after flowing into the air guide channel <NUM>. The second airflow increases the speed of discharging the atomizing gas.

Alternatively, in the embodiment, the shape of the air guide portion <NUM> of the second air inlet channel <NUM> may be any one of or any combination of a square, a circle, or a triangle. The shape of the air inlet portion <NUM> of the second air inlet channel <NUM> may alternatively be any one of or any combination of a square, a circle, or a triangle, which is not specifically limited as long as air can be introduced into the air guide portion <NUM> and then flows into the air guide channel <NUM>.

In an embodiment, there is at least one second air inlet channel <NUM> circumferentially provided on an outer side of the vent portion <NUM>.

In an embodiment, the first air inlet channels <NUM> may be provided corresponding to the second air inlet channels <NUM>. In another embodiment, the second air inlet channels <NUM> and the first air inlet channels <NUM> may also be staggered. Specifically, in order to reduce the mutual impact between airflows formed by air flowing into the first air inlet channels <NUM> and the second air inlet channels <NUM>, the second air inlet channels <NUM> and the first air inlet channels <NUM> are staggered, as shown in <FIG>.

In an embodiment, when the first air inlet channels <NUM> and the second air inlet channels <NUM> are provided, there is a speed difference between the airflows formed in the second air inlet channels <NUM> and the first air inlet channels <NUM>, to ensure that air entering through the first air inlet channels <NUM> forms blocking airflows on the inner wall of the air guide channel <NUM>, thereby blocking the atomizing gas and the air guide channel <NUM>, and and realizing air entering through the second air inlet channels <NUM> can increase the speed of discharging the atomizing gas. In a specific embodiment, a flow rate of the airflows formed in the first air inlet channels <NUM> is greater than a flow rate of the airflows formed in the second air inlet channels <NUM>, thereby weakening the impact on a deliver direction of the atomizing gas while achieving the effect of reducing the condensate.

Specifically, the flow rates of the airflows formed in the first air inlet channel <NUM> and the second air inlet channel <NUM> are related to the size of the opening. A larger size of the opening indicates a faster flow rate. Therefore, in a specific implementation, in order to realize that the flow rate of the airflow formed in the first air inlet channel <NUM> is greater than the flow rate of the airflow formed in the second air inlet channel <NUM>, a size of the first air inlet channel <NUM> (that is, a cross-sectional area, where a cross section of the first air inlet channel <NUM> should be a section taken perpendicular to an extending direction of the first air inlet channel <NUM>) is set to be greater than a size of the second air inlet channel <NUM> (that is, a cross-sectional area, where a cross section of the second air inlet channel <NUM> should be a section taken perpendicular to an extending direction of the second air inlet channel <NUM>). Alternatively, in another embodiment, a quantity of the first air inlet channels <NUM> is greater than a quantity of the second air inlet channels <NUM>.

As shown in <FIG>, when an air pressure difference is generated because a user suctions, under the action of the air pressure difference, an external airflow flows into the airflow channel <NUM> (that is, the air guide channel <NUM>) through the first air inlet channel <NUM> and then forms a blocking airflow Q1 on the inner wall of the airflow channel <NUM>. The blocking airflow Q1 blocks atomizing gas G and the inner wall of the airflow channel <NUM>, thereby reducing condensate formed by the atomizing gas G on the inner wall of the airflow channel <NUM>. In addition, an airflow Q2 flowing into the airflow channel <NUM> through the second air inlet channel <NUM> flows along an outer edge of the atomizing gas G under the action of the air pressure difference, thereby increasing the speed of discharging the atomizing gas G.

Referring to <FIG> is a structural schematic view of a third embodiment of an atomization suction nozzle according to the present disclosure, and <FIG> is a cross-sectional structural schematic view of a third embodiment of an atomization suction nozzle according to the present disclosure.

In the embodiment, the air-curtain formation structure is in a form of the atomization suction nozzle. The atomization suction nozzle provided in the embodiment is for electronic atomization devices such as an e-cigarette and a medical atomization suction nozzle.

Specifically, the atomization suction nozzle has an airflow channel <NUM> configured to deliver atomizing gas. The atomization suction nozzle further has first air inlet channels <NUM> communicated with the airflow channel <NUM>, and the first air inlet channels <NUM> are configured to introduce external airflows into the airflow channel <NUM>, so that blocking airflows (as shown by arrows Q1 in <FIG>, similarly hereinafter) are formed between the inner wall of the airflow channel <NUM> and the atomizing gas. The blocking airflows form an air curtain.

Further, the atomization suction nozzle further has a first air inlet <NUM> and an air outlet <NUM>. The first air inlet <NUM> and the air outlet <NUM> are provided opposite to each other and respectively communicated with the airflow channel <NUM>. Atomizing gas flows into the airflow channel <NUM> through the first air inlet <NUM> and is delivered to the air outlet <NUM> through the airflow channel <NUM>, and then the atomizing gas is output from the air outlet <NUM> for the user to suction. The first air inlet channels <NUM> are close to the inner wall of the airflow channel <NUM>, and exits of the first air inlet channels <NUM> face the air outlet <NUM>, to ensure that the airflows flowing into the airflow channel <NUM> through the first air inlet channels <NUM> can flow along the inner wall of the airflow channel <NUM> (i. e, an inner wall of the atomization suction nozzle), that is, the blocking airflows (as shown by arrows Q1 in <FIG>, similarly hereinafter) are formed to block the atomizing gas and the inner wall of the airflow channel <NUM>, that is, block the atomizing gas and the inner wall of the atomization suction nozzle, so that the atomizing gas may be contacted with the inner wall of the atomization suction nozzle as little as possible, thereby alleviating the problem of atomizing gas condensation and reducing condensate generation.

Further, a flow direction of the blocking airflows is parallel to the inner wall of the airflow channel <NUM>, that is, the flow direction of the blocking airflows is parallel to the inner wall of the atomization suction nozzle, to ensure a desirable effect of the blocking airflows blocking the atomizing gas and the inner wall of the atomization suction nozzle.

In an embodiment, still referring to <FIG>, the atomization suction nozzle further includes a first airflow guide portion <NUM>. The first air inlet channels <NUM> are formed between the first airflow guide portion <NUM> and the inner wall of the airflow channel <NUM>, and configured to guide airflows introduced through the first air inlet channels <NUM> to flow along the inner wall of the airflow channel <NUM>, to form the blocking airflows.

Further, the atomization suction nozzle further includes a second connection portion <NUM>. The first airflow guide portion <NUM> is connected to the inner wall of the airflow channel <NUM> through the second connection portion <NUM>.

Specifically, referring to <FIG> together, a plurality of second connection portions <NUM> are arranged between the first airflow guide portion <NUM> and the inner wall of the airflow channel <NUM>. The plurality of second connection portions <NUM> are spaced along a circumferential direction of the first airflow guide portion <NUM>, and the first air inlet channel <NUM> is formed between adjacent second connection portions <NUM>, that is, at least one first air inlet channel <NUM> is formed. In the way, a relative position of the first airflow guide portion <NUM> in the atomization suction nozzle is fixed, and formation of the first air inlet channels <NUM> between the first airflow guide portion <NUM> and the inner wall of the airflow channel <NUM> is ensured.

Further, a plurality of first air inlet channels <NUM> can be formed between the first airflow guide portion <NUM> and the inner wall of the airflow channel <NUM>, blocking airflows formed by the plurality of first air inlet channels <NUM> form an air curtain, as shown in <FIG>, thereby greatly enabling the atomizing gas to be contacted with the inner wall of the atomization suction nozzle (that is, the inner wall of the airflow channel <NUM>) as little as possible, alleviating the problem of atomizing gas condensation, and reducing condensate generation.

Alternatively, the first airflow guide portion <NUM> may be in an annular shape corresponding to an inner space of the atomization suction nozzle, and surrounds along a circumferential direction of the atomization suction nozzle.

In an embodiment, still referring to <FIG>, the atomization suction nozzle further includes a second airflow guide portion <NUM>. The second airflow guide portion <NUM> is away from the inner wall of the airflow channel <NUM> relative to the first airflow guide portion <NUM>, the second air inlet channels <NUM> are formed between the second airflow guide portion <NUM> and the first airflow guide portion <NUM>, the exits of the second air inlet channels <NUM> face the air outlet <NUM>, and airflows (as shown by arrows Q2 in <FIG>) entering through the second air inlet channels <NUM> are used to guide the atomizing gas to be output from the air outlet <NUM>, thereby speeding up the discharge of the atomizing gas.

Further, the second airflow guide portion <NUM> is annularly arranged and surrounds the first air inlet <NUM> of the atomization suction nozzle.

Further, the air-curtain formation structure further includes a third connection portion <NUM>, and the second airflow guide portion <NUM> is connected to the first airflow guide portion <NUM> through the third connection portion <NUM>, so that a relative position of the second airflow guide portion <NUM> in the atomization suction nozzle is fixed through the first airflow guide portion <NUM>.

Specifically, referring to <FIG> together, a plurality of third connection portions <NUM> are arranged between the second airflow guide portion <NUM> and the first airflow guide portion <NUM>, the plurality of third connection portions <NUM> are sequentially spaced along a circumferential direction of the second airflow guide portion <NUM>, and the second air inlet channels <NUM> are formed between adjacent third connection portions <NUM>. In the way, the relative position of the second airflow guide portion <NUM> in the atomization suction nozzle is fixed, and formation of the second air inlet channels <NUM> between the second airflow guide portion <NUM> and the first airflow guide portion <NUM> is ensured.

Referring to <FIG> and <FIG>, <FIG> is a structural schematic view of a first embodiment of an atomizer according to the present disclosure, and <FIG> is a partial cross-sectional structural schematic viewof a first embodiment of an atomizer according to the present disclosure.

An exemplary embodiment in which the air-curtain formation structure is an atomizer for the electronic atomization device is described below.

In the embodiment, the air-curtain formation structure is in a form of the atomizer. The atomizer provided in the embodiment is for an electronic atomization device such as an e-cigarette and a medical atomizer. <FIG> shows a case in which the air-curtain formation structure is for the medical atomizer, which is merely used for description and is not intended to limit an application environment of the air-curtain formation structure in the embodiment.

In the embodiment, referring to <FIG>, the air-curtain formation structure includes an atomization suction nozzle, an atomization core <NUM>, and a liquid storage cavity <NUM>. The atomization suction nozzle defines a first air inlet <NUM> and an air outlet <NUM>. Atomizing gas flows into the atomization suction nozzle through the first air inlet <NUM> and is delivered to the air outlet <NUM> through the atomization suction nozzle, and then is output from the air outlet <NUM> for the user to suction. The atomization core <NUM> is arranged at a position of the first air inlet <NUM> of the atomization suction nozzle, and is configured to atomize an aerosol generation substrate stored in the liquid storage cavity <NUM> to generate atomizing gas. Structures such as the atomization core <NUM>, the liquid storage cavity <NUM> and the like constitute atomizing gas generation device of the air-curtain formation structure in the embodiment configured to generate atomizing gas.

For the case in which the air-curtain formation structure in the embodiment is for the medical atomizer, the atomization core <NUM> may be an ultrasonic atomization sheet and the like, and the ultrasonic atomization sheet atomizes the aerosol generation substrate through high-frequency oscillation. The specific principle thereof falls within the understanding scope of a person skilled in the art, and details are not described herein again. Certainly, for the case in which the air-curtain formation structure is for other fields, the atomization core <NUM> may also generate atomizing gas in a manner of heating and atomizing the aerosol generation substrate, which is not limited herein.

Specifically, referring to <FIG> together, the atomization suction nozzle defines an airflow channel <NUM>. The airflow channel <NUM> is configured to deliver atomizing gas. The atomization suction nozzle further includes first air inlet channels <NUM> communicated with the airflow channel <NUM>, and are configured to introduce external airflows into the airflow channel <NUM>, so that blocking airflows (as shown by arrows Q1 in <FIG>, similarly hereinafter) are formed between the inner wall of the airflow channel <NUM> and the atomizing gas. The blocking airflows form an air curtain.

Further, the first air inlet <NUM> and the air outlet <NUM> are provided opposite to each other and are respectively communicated with the airflow channel <NUM>. The first air inlet channels <NUM> are close to the inner wall of the airflow channel <NUM>, and exits of the first air inlet channels <NUM> face the air outlet <NUM>, to ensure that the airflows flowing into the airflow channel <NUM> through the first air inlet channels <NUM> can flow along the inner wall of the airflow channel <NUM> (i. e, an inner wall of the atomization suction nozzle), that is, the blocking airflows are formed to block the atomizing gas and the inner wall of the airflow channel <NUM>, that is, block the atomizing gas and the inner wall of the atomization suction nozzle, so that the atomizing gas may be contacted with the inner wall of the atomization suction nozzle as little as possible, thereby alleviating the problem of atomizing gas condensation and reducing condensate generation.

In an embodiment, still referring to <FIG>, the atomization suction nozzle further includes a first airflow guide portion <NUM>. The first air inlet channels <NUM> are formed between the first airflow guide portion <NUM> and the inner wall of the airflow channel <NUM>, and are configured to guide airflows introduced through the first air inlet channels <NUM> to flow along the inner wall of the airflow channel <NUM>, to form the blocking airflows.

Specifically, a plurality of second connection portions <NUM> are arranged between the first airflow guide portion <NUM> and the inner wall of the airflow channel <NUM>. The plurality of second connection portions <NUM> are spaced along a circumferential direction of the first airflow guide portion <NUM>, and the first air inlet channel <NUM> is formed between adjacent second connection portions <NUM>, that is, at least one first air inlet channel <NUM> is formed. In the way, a relative position of the first airflow guide portion <NUM> in the atomization suction nozzle is fixed, and formation of the first air inlet channels <NUM> between the first airflow guide portion <NUM> and the inner wall of the airflow channel <NUM> is ensured.

In an embodiment, still referring to <FIG>, the atomization suction nozzle further includes a second airflow guide portion <NUM>. The second airflow guide portion <NUM> is away from the inner wall of the airflow channel <NUM> relative to the first airflow guide portion <NUM>, the second air inlet channels <NUM> are formed between the second airflow guide portion <NUM> and the first airflow guide portion <NUM>, the exits of the second air inlet channels <NUM> face the air outlet <NUM>, and airflows entering through the second air inlet channels <NUM> are used to guide the atomizing gas to be output from the air outlet <NUM>, thereby speeding up the discharge of the atomizing gas.

Specifically, a plurality of third connection portions <NUM> are arranged between the second airflow guide portion <NUM> and the first airflow guide portion <NUM>, the plurality of third connection portions <NUM> are sequentially spaced along a circumferential direction of the second airflow guide portion <NUM>, and the second air inlet channels <NUM> are formed between adjacent third connection portions <NUM>. In the way, the relative position of the second airflow guide portion <NUM> in the atomization suction nozzle is fixed, and formation of the second air inlet channels <NUM> between the second airflow guide portion <NUM> and the first airflow guide portion <NUM> is ensured.

In an embodiment, still referring to <FIG>, the air-curtain formation structure further defines a converging channel <NUM>, one end of the converging channel <NUM> is an air inlet, that is, a second air inlet <NUM>, and the other end of the converging channel <NUM> is a diverging opening <NUM>, and the diverging opening <NUM> is respectively communicated with the first air inlet channels <NUM> and the second air inlet channels <NUM>.

Specifically, the converging channel <NUM> has a first channel section <NUM> and a second channel section <NUM> communicated with each other, an end opening of the first channel section <NUM> away from the second channel section <NUM> is the diverging opening <NUM>, and an end opening of the second channel section <NUM> away from the first channel section <NUM> is the air inlet, that is, the second air inlet <NUM>. An extending direction of the first channel section <NUM> is different from an extending direction of the second channel section <NUM>.

<FIG> shows that the extending direction of the first channel section <NUM> is a horizontal direction, the extending direction of the second channel section <NUM> is a vertical direction, and the second channel section <NUM> extends toward the air outlet <NUM>. When the user suctions, an external airflow flows into the second channel section <NUM> through the second air inlet <NUM> and is delivered into the first channel section <NUM>, and then passes through the diverging opening <NUM> and flows into the airflow channel <NUM> in the atomization suction nozzle respectively through the first air inlet channels <NUM> and the second air inlet channels <NUM>. Flow of airflows is shown by dashed arrows in <FIG>.

Further, the air-curtain formation structure includes a mounting portion <NUM>. The mounting portion <NUM> includes a mounting protrusion <NUM> and a vent groove <NUM> The mounting protrusion <NUM> is configured to fix the atomization suction nozzle. After the atomization suction nozzle is fixed to the mounting portion <NUM>, the first channel section <NUM> is formed between the atomization suction nozzle and the mounting portion <NUM>, and to be specific, the first channel section <NUM> is formed between the atomization suction nozzle and the bottom of the mounting portion <NUM>. In addition, the second channel section <NUM> is formed between the vent groove <NUM> and the atomization suction nozzle.

In an embodiment, still referring to <FIG>, the periphery of the atomization suction nozzle is provided with limiting grooves <NUM> surrounding along a circumferential direction thereof, and the limiting grooves <NUM> are configured to place elastic rings to fix the atomization suction nozzle. Specifically, after the atomization suction nozzle is embedded in the mounting portion <NUM> mentioned above, the elastic rings placed in the limiting grooves <NUM> are in elastically interference fit with the mounting protrusion <NUM> in the mounting portion <NUM>, to fix the atomization suction nozzle in the mounting portion <NUM>.

It is to be noted that, the elastic ring arranged at a position of the vent groove <NUM> in the mounting portion <NUM> is arranged may not block a gap between the atomization suction nozzle and the vent groove <NUM>, to ensure a ventilation function between the atomization suction nozzle and the vent groove <NUM>, thereby ensuring that the external airflows can flow into the airflow channel <NUM> to form blocking airflows and speed up the discharge of the atomizing gas.

Alternatively, there may be a plurality of limiting grooves <NUM> spaced in an axial direction of the atomization suction nozzle. The design of the plurality of limiting grooves <NUM> can ensure the sufficient bonding strength between the atomization suction nozzle and the mounting portion <NUM>, prevent the atomization suction nozzle from falling off. In addition, the elastic ring may be a silicone ring, which is not limited herein.

Referring to <FIG> is a partial cross-sectional structural schematic view of a first embodiment of an atomizer from another perspective according to the present disclosure. Airflow in the first air inlet channel <NUM> and the second air inlet channel <NUM> in the exemplary embodiment is described below.

According to an aspect, a cross-sectional area of the first air inlet channel <NUM> may affect an amount of the blocking airflows. Specifically, in a case that the air pressure difference caused by user suctioning is fixed, within a specific range, a larger a cross-sectional area of the first air inlet channel <NUM> indicates a larger amount of the blocking airflows. To be specific, a larger distance D between the first airflow guide portion <NUM> and the inner wall of the atomization suction nozzle (i. e, the inner wall of the airflow channel <NUM>) indicates a larger cross-sectional area of the first air inlet channel <NUM> and a larger amount of the blocking airflows.

It may be understood that, since the air pressure difference caused by user suctioning is limited, there is an upper limit on the amount of the blocking airflows. When the amount of the blocking airflows reaches the upper limit, the amount of the blocking airflows may not significantly increase even if the distance between the first airflow guide portion <NUM> and the inner wall of the atomization suction nozzle continues to be increased.

According to another aspect, a flow direction of an airflow (as shown by an arrow Q2 in <FIG>, similarly hereinafter) flowing into the airflow channel <NUM> (i. e, the atomization suction nozzle) through the second air inlet channel <NUM> may affect airflow in the airflow channel <NUM>. Specifically, when an angle (as shown by an angle θ in <FIG>, similarly hereinafter) between the flow direction of the airflow entering through the second air inlet channel <NUM> and a preset direction is excessively small, the airflow entering through the second air inlet channel <NUM> is affected and drawn by the blocking airflow. As a result, the airflow entering through the second air inlet channel <NUM> cannot be output well carrying the atomizing gas, and the effect of speeding up the discharge of the atomizing gas is greatly weakened. When the angle between the flow direction of the airflow entering through the second air inlet channel <NUM> and the preset direction is excessively large, the airflow entering through the second air inlet channel <NUM> may block an output path of the atomizing gas, and prevents the atomizing gas from being delivered to the air outlet <NUM> of the atomization suction nozzle. The preset direction is parallel to a flow direction of the blocking airflow (as shown by an arrow Q1 in <FIG>), that is, the preset direction may be represented by the flow direction of the blocking airflow.

In view of the above, the angle between the flow direction of the airflow entering through the second air inlet channel <NUM> and the preset direction preferably ranges from <NUM>° to <NUM>°, for example, <NUM>°, <NUM>°, <NUM>°, <NUM>°, <NUM>°, <NUM>°, or the like. In this way, it can be ensured that the airflow entering through the second air inlet channel <NUM> can be output carrying the atomizing gas, to speed up the discharge of the atomizing gas.

It is to be noted that, the flow direction of the airflow entering through the second air inlet channel <NUM> can be adjusted by adjusting the structure of the atomization suction nozzle at a position of the second air inlet channel <NUM>. For example, the flow direction of the airflow entering through the second air inlet channel <NUM> can be adjusted by adjusting positions of the first airflow guide portion <NUM> and the second airflow guide portion <NUM> in an axial direction of the airflow channel <NUM>, which is not limited herein.

Referring to <FIG> is a structural schematic view of a fourth embodiment of an atomization suction nozzle according to the present disclosure, and <FIG> is a cross-sectional structural schematic view of a fourth embodiment of an atomization suction nozzle according to the present disclosure.

An exemplary embodiment in which the air-curtain formation structure is an atomization suction nozzle for the electronic atomization device is described below. The atomization suction nozzle defines a first air inlet <NUM>, a second air inlet <NUM>, and an air outlet <NUM>, and the first air inlet <NUM> and the air outlet <NUM> are provided opposite to each other. The atomization suction nozzle further includes an airflow guide member. The airflow guide member is communicated with the second air inlet <NUM> and is configured to guide an airflow entering through the second air inlet <NUM> toward the first air inlet <NUM>. Detailed descriptions are provided below.

Specifically, referring to <FIG>, the atomization suction nozzle defines an airflow channel <NUM>. The airflow channel <NUM> is configured to deliver atomizing gas. The atomization suction nozzle further includes first air inlet channels <NUM> communicated with the airflow channel <NUM>, and the first air inlet channels <NUM> are configured to introduce external airflows into the airflow channel <NUM>, so that blocking airflows (as shown by arrows Q1 in <FIG>, similarly hereinafter) are formed between the inner wall of the airflow channel <NUM> and the atomizing gas. The blocking airflows form an air curtain.

Further, the atomization suction nozzle is further provided with a first air inlet <NUM> and an air outlet <NUM>. The first air inlet <NUM> and the air outlet <NUM> are provided opposite to each other and respectively communicated with the airflow channel <NUM>. Atomizing gas flows into the airflow channel <NUM> through the first air inlet <NUM> and is delivered to the air outlet <NUM> through the airflow channel <NUM>, and then is output from the air outlet <NUM> for the user to suction. The first air inlet channels <NUM> are close to the inner wall of the airflow channel <NUM>, and exits of the first air inlet channels <NUM> face the air outlet <NUM>, to ensure that the airflows flowing into the airflow channel <NUM> through the first air inlet channels <NUM> can flow along the inner wall of the airflow channel <NUM> (i. e, an inner wall of the atomization suction nozzle), that is, the blocking airflows are formed to block the atomizing gas and the inner wall of the airflow channel <NUM>, that is, block the atomizing gas and the inner wall of the atomization suction nozzle, so that the atomizing gas may be contacted with the inner wall of the atomization suction nozzle as little as possible, thereby alleviating the problem of atomizing gas condensation and reducing condensate generation.

In an embodiment, still referring to <FIG>, the atomization suction nozzle is further provided with the second air inlet <NUM> different from the first air inlet <NUM>, and the second air inlet <NUM> is configured to guide an external airflow to flow into the atomization suction nozzle. The atomization suction nozzle further includes an airflow guide member. The airflow guide member is communicated with the second air inlet <NUM> and is configured to guide the airflow entering through the second air inlet <NUM> to flow toward the first air inlet <NUM>, and then carry atomizing gas flowing into the atomization suction nozzle through the first air inlet <NUM> and output the atomizing gas through the air outlet <NUM> of the atomization suction nozzle, so that the user can suction and the discharge of the atomizing gas can be accelerated.

Specifically, at least a part of the airflow guide member is obliquely arranged in a direction away from the inner wall (i. e, the inner wall of the airflow channel <NUM>) and the air outlet <NUM> of the atomization suction nozzle, to guide the airflow entering through the second air inlet <NUM> to flow toward the first air inlet <NUM>, and further carry the atomizing gas flowing into the atomization suction nozzle through the first air inlet <NUM> and output the atomizing gas through the air outlet <NUM> of the atomization suction nozzle, so that the user can suction and the discharge of the atomizing gas can be accelerated.

In an embodiment, the airflow guide member includes a first airflow guide portion <NUM>. The first air inlet channels <NUM> are formed between the first airflow guide portion <NUM> and the inner wall of the airflow channel <NUM> (i. e, the inner wall of the atomization suction nozzle), and are configured to guide airflows entering through the first air inlet channels <NUM> to flow along the inner wall of the airflow channel <NUM>. The airflows entering through the first air inlet channels <NUM> are used to form blocking airflows (as shown by arrows Q1 in <FIG>, similarly hereinafter) between the inner wall of the atomization suction nozzle and the atomizing gas.

Specifically, referring to <FIG> together, a plurality of second connection portions <NUM> are arranged between the first airflow guide portion <NUM> and the inner wall of the airflow channel <NUM>. The plurality of second connection portions <NUM> are spaced in a circumferential direction of the first airflow guide portion <NUM>, and the first air inlet channel <NUM> is formed between adjacent second connection portions <NUM>, that is, at least one first air inlet channel <NUM> is formed. In the way, a relative position of the first airflow guide portion <NUM> in the atomization suction nozzle is fixed, and formation of the first air inlet channels <NUM> between the first airflow guide portion <NUM> and the inner wall of the airflow channel <NUM> is ensured.

In an embodiment, still referring to <FIG>, the airflow guide member further includes a second airflow guide portion <NUM>. The second airflow guide portion <NUM> is arranged on a side of the first airflow guide portion <NUM> away from the air outlet <NUM>, that is, the first airflow guide portion <NUM> is closer to the air outlet <NUM> relative to the second airflow guide portion <NUM>. The second airflow guide portion <NUM> is obliquely arranged in a direction away from the inner wall of the airflow channel <NUM> and the air outlet <NUM> to form the second air inlet channels <NUM>, and airflows (as shown by arrows Q2 in <FIG>, similarly hereinafter) entering through the second air inlet channels <NUM> are used to guide the atomizing gas to be output from the air outlet <NUM>, thereby speeding up the discharge of the atomizing gas.

Specifically, the airflow entering through the second air inlet channel <NUM> flows to the first air inlet <NUM> along the second airflow guide portion <NUM> to be mixed with atomizing gas at the first air inlet <NUM>, and then carries the atomizing gas to pass through the first air inlet <NUM> and to be output from the air outlet <NUM>.

Alternatively, the second airflow guide portion <NUM> may be in an annular shape corresponding to an inner space of the atomization suction nozzle, and surrounds along a circumferential direction of the atomization suction nozzle.

It is to be noted that, in the exemplary embodiment, the airflow guide member is arranged at an end of the atomization suction nozzle away from the air outlet <NUM>, so that the airflow guide member is as close as possible to the atomization core of the electronic atomization device after the atomization suction nozzle is assembled to the electronic atomization device. In this way, the airflow guided by the airflow guide member can drive the output of the atomizing gas near the atomization core to the most, and the problem of atomizing gas retention near the atomization core can be alleviated to the most, thereby alleviating the problem of atomizing gas condensation near the atomization core to the most.

Certainly, in other embodiments in the present disclosure, the airflow guide member and the second air inlet <NUM> communicated with the airflow guide member can be arranged at other positions in the axial direction of the atomization suction nozzle, and the problem of atomizing gas retention near the atomization core can also be alleviated, which is not limited herein.

Referring to <FIG> and <FIG>, <FIG> is a structural schematic view of a second embodiment of an atomizer according to the present disclosure, and <FIG> is a partial cross-sectional structural schematic view of a second embodiment of an atomizer according to the present disclosure.

In the embodiment, the air-curtain formation structure is in a form of the atomizer. The atomizer provided in the embodiment is for electronic atomization devices such as an e-cigarette and a medical atomizer. <FIG> shows a case in which the air-curtain formation structure is for the medical atomizer, which is merely used for description and is not intended to limit an application environment of the air-curtain formation structure in the embodiment.

In the embodiment, referring to <FIG>, the air-curtain formation structure includes an atomization suction nozzle, an atomization core <NUM>, and a liquid storage cavity <NUM>. The atomization suction nozzle defines a first air inlet <NUM> and an air outlet <NUM>, atomizing gas flows into the atomization suction nozzle through the first air inlet <NUM> and is delivered to the air outlet <NUM> through the atomization suction nozzle, and then is output from the air outlet <NUM> for the user to suction. The atomization core <NUM> is arranged at a position of the first air inlet <NUM> of the atomization suction nozzle and is configured to atomize an aerosol generation substrate stored in the liquid storage cavity <NUM> to generate atomizing gas. Structures such as the atomization core <NUM>, the liquid storage cavity <NUM> and the like constitute atomizing gas generation device of the air-curtain formation structure in the embodiment configured to generate atomizing gas.

For the case in which the air-curtain formation structure in the embodiment is for the medical atomizer, the atomization core <NUM> may be an ultrasonic atomization sheet, and the ultrasonic atomization sheet atomizes the aerosol generation substrate through high-frequency oscillation. The specific principle thereof falls within the understanding scope of a person skilled in the art, and details are not described herein again. Certainly, for the case in which the air-curtain formation structure is for other fields, the atomization core <NUM> may also generate atomizing gas in a manner of heating and atomizing the aerosol generation substrate, which is not limited herein.

Specifically, referring to <FIG>, the atomization suction nozzle defines an airflow channel <NUM>. The airflow channel <NUM> is configured to deliver atomizing gas. The atomization suction nozzle further includes first air inlet channels <NUM> communicated with the airflow channel <NUM>, and are configured to introduce external airflows into the airflow channel <NUM>, so that blocking airflows (as shown by arrows Q1 in <FIG>, similarly hereinafter) are formed between the inner wall of the airflow channel <NUM> and the atomizing gas. The blocking airflows form an air curtain.

Further, a flow direction of the blocking airflows is parallel to the inner wall of the airflow channel <NUM>, that is, the flow direction of the blocking airflows is parallel to the inner wall of the atomization suction nozzle, to ensure a desirable effect of the blocking airflows for blocking the atomizing gas and the inner wall of the atomization suction nozzle.

In an embodiment, still referring to <FIG>, the atomization suction nozzle further defines the second air inlet <NUM> different from the first air inlet <NUM>, and the second air inlet <NUM> is configured to guide an external airflow to flow into the atomization suction nozzle. The atomization suction nozzle further includes an airflow guide member. The airflow guide member is communicated with the second air inlet <NUM> and is configured to guide the airflow entering through the second air inlet <NUM> to flow toward the first air inlet <NUM>, and then carry atomizing gas flowing into the atomization suction nozzle through the first air inlet <NUM> and output the atomizing gas through the air outlet <NUM> of the atomization suction nozzle, so that the user can suction and the discharge of the atomizing gas can be accelerated.

In other words, the airflow guide member is configured to guide the airflow to flow toward the atomization core <NUM>, to drive the atomizing gas near the atomization core <NUM> to be output from the air outlet <NUM>, so that the problem of atomizing gas retention near the atomization core <NUM> can be effectively alleviated, thereby alleviating the problem of atomizing gas condensation near the atomization core <NUM>.

Specifically, at least a part of the airflow guide member is obliquely arranged in a direction away from the inner wall and the air outlet <NUM> of the atomization suction nozzle, to guide the airflow entering through the second air inlet <NUM> to flow toward the first air inlet <NUM>, that is, guide the airflow to flow toward the atomization core <NUM> to directly face a surface of the atomization core <NUM>, to carry atomizing gas atomized by the atomization core <NUM> to flow into the atomization suction nozzle through the first air inlet <NUM> and to be output from the air outlet <NUM>, and speed up the discharge of the atomizing gas, so that less atomizing gas is contacted with the inner wall of the atomization suction nozzle to some extent, thereby alleviating the problem of atomizing gas condensation, and reducing condensate generation.

In an embodiment, still referring to <FIG>, the airflow guide member includes a first airflow guide portion <NUM>. The first air inlet channels <NUM> are formed between the first airflow guide portion <NUM> and the inner wall of the airflow channel <NUM> (i. e, the inner wall of the atomization suction nozzle), and are configured to guide airflows entering through the first air inlet channels <NUM> to flow along the inner wall of the airflow channel <NUM>. The airflows entering through the first air inlet channels <NUM> are used to form blocking airflows between the inner wall of the atomization suction nozzle and the atomizing gas.

Specifically, a plurality of second connection portions <NUM> are arranged between the first airflow guide portion <NUM> and the inner wall of the airflow channel <NUM>. The plurality of second connection portions <NUM> are spaced along a circumferential direction of the first airflow guide portion <NUM>, and the first air inlet channel <NUM> is formed between adjacent second connection portions <NUM>, that is, at least one first air inlet channel <NUM> is formed. In this way, a relative position of the first airflow guide portion <NUM> in the atomization suction nozzle is fixed, and formation of the first air inlet channels <NUM> between the first airflow guide portion <NUM> and the inner wall of the airflow channel <NUM> is ensured.

Alternatively, the first airflow guide portion <NUM> may be in an annular shape corresponding to an inner space of the atomization suction nozzle, and surrounds along a circumferential direction of the atomization suction nozzle. In an embodiment, still referring to <FIG>, the airflow guide member further includes a second airflow guide portion <NUM>. The second airflow guide portion <NUM> is arranged on a side of the first airflow guide portion <NUM> away from the air outlet <NUM>, that is, the first airflow guide portion <NUM> is closer to the air outlet <NUM> relative to the second airflow guide portion <NUM>. The second airflow guide portion <NUM> is obliquely arranged in a direction away from the inner wall of the airflow channel <NUM> and the air outlet <NUM> to form the second air inlet channels <NUM>, and airflows entering through the second air inlet channels <NUM> are used to guide the atomizing gas to be output from the air outlet <NUM>, thereby speeding up the discharge of the atomizing gas.

<FIG> shows that the extending direction of the first channel section <NUM> is a horizontal direction, the extending direction of the second channel section <NUM> is a vertical direction, and the second channel section <NUM> extends toward the air outlet <NUM>. When the user suctions, an external airflow flows into the second channel section <NUM> through the second air inlet <NUM> and is delivered into the first channel section <NUM>, and then the airflow passes through the diverging opening <NUM> and flows into the airflow channel <NUM> in the atomization suction nozzle respectively through the first air inlet channels <NUM> and the second air inlet channels <NUM>. Flow conditions of airflows are shown by dashed arrows in <FIG>.

Further, the air-curtain formation structure includes a mounting portion <NUM>. The mounting portion <NUM> includes a mounting protrusion <NUM> and a vent groove <NUM>. The mounting protrusion <NUM> is configured to fix the atomization suction nozzle. After the atomization suction nozzle is fixed to the mounting portion <NUM>, the first channel section <NUM> is formed between the atomization suction nozzle and the mounting portion <NUM>, and to be specific, the first channel section <NUM> is formed between the atomization suction nozzle and the bottom of the mounting portion <NUM>. In addition, the second channel section <NUM> is formed between the vent groove <NUM> and the atomization suction nozzle.

Referring to <FIG> is a structural schematic view of a relative position relationship between a center line of a diverging opening and a joint of a first airflow guide portion and a second airflow guide portion of an atomizer according to the present disclosure. Airflow in the first air inlet channel <NUM> and the second air inlet channel <NUM> in the exemplary embodiment is described below.

In the exemplary embodiment, the airflow entering through the first air inlet channel <NUM> forms the blocking airflow between the inner wall of the atomization suction nozzle and the atomizing gas, so that the atomizing gas is contacted with the inner wall of the atomization suction nozzle as little as possible, thereby alleviating the problem of atomizing gas condensation, and reducing condensate generation. The airflow entering through the second air inlet channel <NUM> guides the atomizing gas to be output from the air outlet <NUM>, to speed up the discharge of the atomizing gas, thereby effectively alleviating the problem of atomizing gas condensation in a cavity surrounded by the airflow guide member.

Since the air pressure difference caused by user suctioning is fixed, a total amount of the airflows flowing into the first air inlet channel <NUM> and the second air inlet channel <NUM> is fixed. Therefore, in the exemplary embodiment, the amount of the airflows flowing into the first air inlet channel <NUM> and the second air inlet channel <NUM> is appropriately allocated, to alleviate the problem of atomizing gas condensation on the inner wall of the atomization suction nozzle and in the cavity surrounded by the airflow guide member.

In an embodiment, a center line α of the diverging opening <NUM> the center line α of the diverging opening <NUM> being defined as being perpendicular to a central axis of the diverging opening <NUM>, similarly hereinafter) extends through the joint of the first airflow guide portion <NUM> and the second airflow guide portion <NUM>, as shown in <FIG>. In this way, the airflow entering through the first air inlet channel <NUM> is sufficient to form the blocking airflow between the inner wall of the atomization suction nozzle and the atomizing gas, thereby reducing the adhesion degree of the atomizing gas on the inner wall of the atomization suction nozzle. In addition, the airflow entering through the second air inlet channel <NUM> is sufficient to quickly carry and discharge the atomizing gas, thereby reducing the adhesion degree of the atomizing gas in the cavity surrounded by the airflow guide member.

In an alternative embodiment, the center line α of the diverging opening <NUM> is away from the air outlet <NUM> relative to the joint of the first airflow guide portion <NUM> and the second airflow guide portion <NUM>, as shown in <FIG>. In this way, the amount of the airflow entering through the second air inlet channel <NUM> is significantly increased, thereby further speeding up carrying and discharging the atomizing gas, further reducing the adhesion degree of the atomizing gas in the cavity surrounded by the airflow guide member, and alleviating the problem of atomizing gas condensation in the cavity surrounded by the airflow guide member.

In another alternative embodiment, the center line α of the diverging opening <NUM> is close to the air outlet <NUM> relative to the joint of the first airflow guide portion <NUM> and the second airflow guide portion <NUM>, as shown in <FIG>. In this way, the amount of the airflow entering through the first air inlet channel <NUM> is significantly increased, thereby further increasing an amount of the blocking airflows between the inner wall of the atomization suction nozzle and the atomizing gas, and further reducing the adhesion degree of the atomizing gas on the inner wall of the atomization suction nozzle, and alleviating the problem of atomizing gas condensation on the inner wall of the atomization suction nozzle.

It is to be noted that, a size relationship between the cross-sectional area of the first air inlet channel <NUM> and the cross-sectional area of the second air inlet channel <NUM> is the same as an airflow amount relationship between the airflow of the first air inlet channel <NUM> and the airflow of the second air inlet channel <NUM>. That is to say, the cross-sectional area of the first air inlet channel <NUM> being greater than the cross-sectional area of the second air inlet channel <NUM> indicates that the airflow amount of the first air inlet channel <NUM> being greater than the airflow amount of the second air inlet channel <NUM>, or otherwise, the opposite.

In view of this, in the exemplary embodiment, the cross-sectional area of the second air inlet channel <NUM> can be adjusted by adjusting a degree of inclination of the second airflow guide portion <NUM> of the airflow guide member, thereby adjusting the size relationship between the cross-sectional area of the first air inlet channel <NUM> and that of the second air inlet channel <NUM>, and adjusting the airflow amount of the first air inlet channel <NUM> and the second air inlet channel <NUM>.

Specifically, the second airflow guide portion <NUM> being more inclined in a direction away from the air outlet <NUM> indicates a smaller cross-sectional area of the second air inlet channel <NUM>, and a smaller airflow amount of the second air inlet channel <NUM> and a larger airflow amount of the first air inlet channel <NUM>, or otherwise, the opposite.

It is to be noted that, in the foregoing manner, the adhesion degrees of the atomizing gas on the inner wall of the atomization suction nozzle and the atomizing gas in the cavity surrounded by the airflow guide member are less than <NUM>%. It can be seen that, based on the design of the first air inlet channel <NUM> and the second air inlet channel <NUM> in the exemplary embodiment, the adhesion degree of the atomizing gas can be effectively reduced, thereby alleviating the problem of atomizing gas condensation.

Referring to <FIG> and <FIG>, <FIG> is a structural schematic view of a third embodiment of an atomizer according to the present disclosure, and <FIG> is a cross-sectional structural schematic view of a third embodiment of an atomizer in a direction A-A according to the present disclosure.

In the embodiment, the air-curtain formation structure is in a form of the atomizer. The atomizer provided in the embodiment is for electronic atomization devices such as an e-cigarette and a medical atomizer. <FIG> shows a case in which the air-curtain formation structure is for the e-cigarette, which is merely used for description and is not intended to limit an application environment of the air-curtain formation structure in the embodiment.

Specifically, the atomizer defines an airflow channel <NUM>. The airflow channel <NUM> is configured to deliver atomizing gas. The atomizer further defines a first air inlet channel <NUM> communicated with the airflow channel <NUM>, and the first air inlet channel <NUM> is configured to introduce an external airflow into the airflow channel <NUM>, so that a blocking airflow is formed between an inner wall of the airflow channel <NUM> and the atomizing gas. The blocking airflows form an air curtain.

Further, the atomizer further defines an air outlet <NUM> communicated with the airflow channel <NUM>, the first air inlet channel <NUM> is close to the inner wall of the airflow channel <NUM>, and an exit of the first air inlet channel <NUM> faces the air outlet <NUM>, to ensure that the airflow flowing into the airflow channel <NUM> through the first air inlet channel <NUM> can flow along the inner wall of the airflow channel <NUM> (i. e, an inner wall of the atomizer), that is, the blocking airflow are formed to block the atomizing gas and the inner wall of the airflow channel <NUM>, that is, block the atomizing gas and the inner wall of the atomizer, so that the atomizing gas may be contacted with the inner wall of the atomizer as little as possible, thereby alleviating the problem of atomizing gas condensation and reducing condensate generation.

In an embodiment, still referring to <FIG>, the atomizer further defines an atomization cavity <NUM>. An atomization core <NUM> is arranged in the atomization cavity <NUM> and is configured to atomize an aerosol generation substrate to generate atomizing gas. The airflow channel <NUM> is provided in the atomization cavity <NUM>, that is, a space used for accommodating the atomization cavity <NUM> is the airflow channel <NUM>. A first air inlet channel <NUM> is provided on the bottom of the atomization cavity <NUM> close to an inner wall of the atomization cavity <NUM>, so that an airflow flowing into the atomization cavity <NUM> through the first air inlet channel <NUM> during user suctioning may flow along the inner wall of the atomization cavity <NUM>, thereby forming a blocking airflow between the inner wall of the atomization cavity <NUM> and the atomizing gas.

Further, the atomizer further defines a second air inlet channel <NUM>, an airflow entering through the second air inlet channel <NUM> has ability of guiding the atomizing gas to be output from the air outlet <NUM>, thereby speeding up the discharge of the atomizing gas,reducing contact between atomizing gas and the inner wall of the atomization cavity <NUM> to some extent, and similarly alleviating the problem of atomizing gas condensation. Specifically, the second air inlet channel <NUM> is provided on the bottom of the atomization cavity <NUM>, and the first air inlet channel <NUM> is close to an edge of the bottom of the atomization cavity <NUM> relative to the second air inlet channel <NUM>.

Furthermore, referring to <FIG>, the first air inlet channels <NUM> are respectively provided on two opposite sides of the second air inlet channels <NUM>. Based on the foregoing manner, a quantity of the first air inlet channels <NUM> can be increased, thereby further reducing contact between the atomizing gas and the inner wall of the atomization cavity <NUM>, and further alleviating the problem of atomizing gas condensation. In addition, the first air inlet channels <NUM> are provided on the two opposite sides of the second air inlet channels <NUM> as symmetrically as possible, thereby optimizing the distribution of the blocking airflows in the atomization cavity <NUM>, and improving the effect of alleviating the problem of atomizing gas condensation.

In an embodiment, the first air inlet channels <NUM> may be in a through-hole form, as shown in <FIG>. A plurality of first air inlet channels <NUM> are spaced on the bottom of the atomization cavity <NUM> close to the inner wall of the atomization cavity <NUM>, and airflows flowing into the atomization cavity <NUM> through the first air inlet channels <NUM> in the through-hole form may form blocking airflows. Specifically, the plurality of first air inlet channels <NUM> are spaced along an edge on the bottom of the atomization cavity <NUM>, and the plurality of first air inlet channels <NUM> are spaced on the two opposite sides of the second air inlet channels <NUM>.

Alternatively, the hole diameter of the first air inlet channel <NUM> in the through-hole form may be <NUM>, <NUM>, or the like, which is not limited herein.

In an alternative embodiment, a cross section of the first air inlet channel <NUM> is strip-shaped, that is, the first air inlet channel <NUM> is a strip-shaped narrow gap, as shown in <FIG>. The first air inlet channels <NUM> in the narrow-gap form extend along the edge on the bottom of the atomization cavity <NUM>, and airflows flowing into the atomization cavity <NUM> through the first air inlet channels <NUM> in the narrow-gap form may form the blocking airflows. Further, the first air inlet channels <NUM> in the narrow-gap form are respectively provided on the two opposite sides of the second air inlet channels <NUM>.

Alternatively, a width of the first air inlet channel <NUM> in the narrow-gap form may be <NUM>, <NUM>, or the like, which is not limited herein.

It is to be noted that, distribution of the blocking airflows formed by the airflows entering through the first air inlet channel <NUM> in the narrow-gap form is better than distribution of the blocking airflows formed by the airflows entering through the first air inlet channel <NUM> in the through-hole form, and distribution of the blocking airflows formed by the airflows entering through the first air inlet channel <NUM> of a width of <NUM> is better than distribution of the blocking airflows formed by the airflows entering through the first air inlet channel <NUM> of a width of <NUM>. In addition, an entire flow direction of airflows inside the atomization cavity <NUM> is more ordered because of function of the blocking airflows, so that a vortex flow is unlikely to be formed.

Referring to <FIG> is a structural schematic view of a fourth embodiment of an atomizer according to the present disclosure.

Specifically, the atomizer defines an airflow channel <NUM>. The airflow channel <NUM> is configured to deliver atomizing gas. The atomizer further defines a first air inlet channel <NUM> communicated with the airflow channel <NUM>, and the first air inlet channel <NUM> is configured to introduce an external airflow into the airflow channel <NUM>, thereby forming a blocking airflow between an inner wall of the airflow channel <NUM> and the atomizing gas. The blocking airflows form an air curtain.

The atomizer further defines an air outlet channel <NUM>, the airflow channel <NUM> is provided in the air outlet channel <NUM>, and the first air inlet channels <NUM> are provided on a side wall of the air outlet channel <NUM>. When the user suctions, external airflows flow into the air outlet channel <NUM> through the first air inlet channels <NUM> on the side wall of the air outlet channel <NUM> and then flow along an inner wall of the air outlet channel <NUM>, thereby forming blocking airflows between the inner wall of the air outlet channel <NUM> and the atomizing gas, effectively reducing contact between high-temperature atomizing gas in the air outlet channel <NUM> and the inner wall of the low-temperature air outlet channel <NUM>, and reducing atomizing gas condensation. As shown in <FIG>, blocking airflows Q1 are arranged between the inner wall of the air outlet channel <NUM> and atomizing gas G, to block the inner wall of the air outlet channel <NUM> and the atomizing gas G.

Further, the atomizer further defines an atomization cavity <NUM>. An atomization core <NUM> is arranged in the atomization cavity <NUM> and is configured to atomize an aerosol generation substrate to generate atomizing gas. The atomization cavity <NUM> is communicated with the air outlet channel <NUM>. In addition, a second air inlet channel <NUM> is provided in the atomization cavity <NUM>. When the user suctions, external airflows flow into the atomization cavity <NUM> through the second air inlet channels <NUM>, to carry the atomizing gas in the atomization cavity <NUM> to be discharged through the air outlet channel <NUM>, thereby speeding up the discharge of the atomizing gas, reducing contact between the atomizing gas and the inner wall of the atomization cavity <NUM>, reducing contact between the atomizing gas and the inner wall of the air outlet channel <NUM> to some extent, and alleviating the problem of atomizing gas condensation.

The first air inlet channels <NUM> are provided on a part of the air outlet channel <NUM> close to the atomization cavity <NUM>, as shown in <FIG>, thereby avoiding the atomizing gas condensation of the air outlet channel <NUM> arranged between the first air inlet channels <NUM> and the atomization cavity <NUM> as much as possible, and further alleviating the problem of atomizing gas condensation.

Further, referring to <FIG>, the atomizer defines a plurality of first air inlet channels <NUM>, and the plurality of first air inlet channels <NUM> are sequentially spaced apart from each other along a circumferential direction of the air outlet channel <NUM>. Furthermore, the plurality of first air inlet channels <NUM> are evenly spaced along the circumferential direction of the air outlet channel <NUM>, thereby evenly flowing airflows into the side wall of the air outlet channel <NUM>, and further forming blocking airflows in the air-curtain form that are well distributed in the air outlet channel <NUM>.

Alternatively, the first air inlet channels <NUM> are preferably circular holes as shown in <FIG> or elongated holes as shown in <FIG>. In addition, a diameter of the first air inlet channel <NUM> in the circular-hole form may be <NUM>, <NUM>, or the like, and a width of the first air inlet channel <NUM> in the strip-shaped form may be <NUM>, <NUM>, or the like, which are not limited herein.

Referring to table in the following, the table shows an accumulation amount of condensate in a conventional air outlet channel and the air outlet channel <NUM> in the exemplary embodiment when the user suctions for different times.

Based on the above, an air-curtain formation structure for an electronic atomization device is provided in the present disclosure, and the air-curtain formation structure defines an airflow channel configured to deliver atomizing gas. The airflow channel has a first air inlet channel, and the first air inlet channel is configured to introduce an external airflow into the airflow channel, so that a blocking airflow is formed between an inner wall of the airflow channel and the atomizing gas. In the present disclosure, the blocking airflow is used to block the inner wall of the airflow channel and the atomizing gas, so that the atomizing gas is contacted with the inner wall of the airflow channel as little as possible, the problem of atomizing gas condensation can be alleviated, and less condensate is generated, thereby improving the user experience, reducing drug loss, and reducing the risk of condensate leakage.

Referring to <FIG> is a structural schematic view of an embodiment of an electronic atomization device according to the present disclosure.

In the embodiment, the electronic atomization device may be an e-cigarette or a medical atomization electronic device, and includes a main body <NUM> and an air-curtain formation structure <NUM>, the main body <NUM> is connected to the air-curtain formation structure <NUM>, and the air-curtain formation structure <NUM> defines an airflow channel configured to deliver atomizing gas. The air-curtain formation structure <NUM> further defines a first air inlet channel communicated with the airflow channel, and the first air inlet channel is configured to introduce an external airflow into the airflow channel, so that a blocking airflow is formed between an inner wall of the airflow channel and the atomizing gas.

The air-curtain formation structure <NUM> is described in detail in the foregoing embodiments, and details are not described herein again.

It is to be noted that, the main body <NUM> is defined as a set of elements of the electronic atomization device other than the air-curtain formation structure <NUM>. Specifically, when the air-curtain formation structure <NUM> is an atomization suction nozzle for the electronic atomization device, the main body <NUM> includes a main unit (including a power supply and circuit parts of the electronic atomization device) of the electronic atomization device and other elements (including an atomization core, and the like) of the atomizer other than the atomization suction nozzle. In addition, when the air-curtain formation structure <NUM> is the atomizer for the electronic atomization device, the main body <NUM> includes the main unit of the electronic atomization device.

For example, <FIG> shows an overall configuration of the main body <NUM> and the air-curtain formation structure <NUM> after assembly, that is, the electronic atomization device.

Referring to <FIG> is a structural schematic view of an embodiment of a medical atomization electronic device according to the present disclosure.

In the embodiment, the medical atomization electronic device is for the field of medical atomization and includes a main unit <NUM> (including a power supply and circuit parts of the medical atomization electronic device) and a medical atomizer <NUM> connected to the main unit <NUM>. The medical atomizer <NUM> includes an atomization suction nozzle, and the atomization suction nozzle defines a first air inlet, a second air inlet, and an air outlet. The medical atomizer <NUM> further defines a liquid storage cavity, and the liquid storage cavity is configured to store an aerosol generation substrate. The medical atomizer <NUM> further includes an atomization core, and the atomization core is arranged in the first air inlet and is configured to atomize the aerosol generation substrate to generate atomizing gas. The medical atomizer <NUM> further includes an airflow guide member, the airflow guide member is arranged in the atomization suction nozzle and is communicated with the second air inlet, and the airflow guide member is configured to guide an airflow entering through the second air inlet to flow toward the atomization core, to carry the atomizing gas to be output from the air outlet.

The medical atomizer <NUM> is described in detail in the foregoing embodiments, and details are not described herein again.

For example, <FIG> shows an exemplary embodiment of the main unit <NUM>, and <FIG> shows an overall configuration of the main unit <NUM> and the medical atomizer <NUM> after assembly, that is, the medical atomization electronic device.

In the present disclosure, unless otherwise explicitly specified or defined, the terms such as "connect", "connection", and "stack" should be understood in a broad sense. For example, the connection may be a fixed connection, a detachable connection, or an integral connection; or the connection may be a direct connection, an indirect connection through an intermediate medium, internal communication between two elements, or an interaction relationship between two elements. A person of ordinary skill in the art may understand the specific meanings of the foregoing terms in the present disclosure according to specific situations.

Claim 1:
An air-curtain formation structure (<NUM>) for an electronic atomization device, having:
an airflow channel (<NUM>), configured to deliver atomizing gas (G);
a first air inlet channel (<NUM>), communicated with the airflow channel (<NUM>) and configured to introduce an external airflow into the airflow channel (<NUM>), so that a blocking airflow (Q1) is formed between the inner wall of the airflow channel (<NUM>) and the atomizing gas (G), and a flow direction of the blocking airflow (Q1) is parallel to the inner wall of the airflow channel (<NUM>); and
an air outlet (<NUM>), communicated with the airflow channel (<NUM>);
wherein the first air inlet channel (<NUM>) is close to the inner wall of the airflow channel (<NUM>), and an exit of the first air inlet channel (<NUM>) faces the air outlet (<NUM>),
wherein the air-curtain formation structure (<NUM>) further comprises a first airflow guide portion (<NUM>),
the first air inlet channel (<NUM>) is formed between the first airflow guide portion (<NUM>) and the inner wall of the airflow channel (<NUM>), and
the first airflow guide portion (<NUM>) is configured to guide the airflow introduced through the first air inlet channel (<NUM>) to flow along the inner wall of the airflow channel (<NUM>), to form the blocking airflow (Q1),
wherein the air-curtain formation structure (<NUM>) further comprises a second airflow guide portion (<NUM>),
the second airflow guide portion (<NUM>) is obliquely arranged in a direction away from the inner wall of the airflow channel (<NUM>) and the air outlet (<NUM>) to form a second air inlet channel (<NUM>), and
an airflow entering through the second air inlet channel (<NUM>) is used to guide the atomizing gas (G) to be output from the air outlet (<NUM>).