WO2023116221A1

WO2023116221A1 - Atomizer and electronic atomization device

Info

Publication number: WO2023116221A1
Application number: PCT/CN2022/129433
Authority: WO
Inventors: 杜红飞; 周宏明; 肖俊杰; 李欢喜; 李日红
Original assignee: 深圳麦克韦尔科技有限公司
Priority date: 2021-12-24
Filing date: 2022-11-03
Publication date: 2023-06-29

Abstract

An atomizer (100) and an electronic atomization device (200). The atomizer (100) comprises: a heating element (10), a heating cavity (11) being formed inside the heating element (10); and at least one electrode assembly (30), each electrode assembly (30) comprising a first electrode (32) and a second electrode (34), and the first electrode (32) and the second electrode (34) both extending into the heating cavity (11), wherein an electric arc can be controlled to be formed between the first electrode (32) and the second electrode (34) in the heating cavity (11) and plasma can be generated, and the plasma causes the heating cavity (11) to heat. Moreover, the heating element (10) can be provided with an accommodating space (15) for accommodating an aerosol-generating substrate. After heating in the heating cavity (11) under the action of the plasma, the heat can be transferred to the accommodating space (15), to heat the aerosol-generating substrate in the accommodating space (15).

Description

Atomizers and Electronic Atomization Devices

technical field

The present application relates to the technical field of electronic atomization, in particular to an atomizer and an electronic atomization device.

Background technique

Aerosol is a colloidal dispersion system formed by dispersing small solid or liquid particles and suspending them in a gas medium. Since aerosol can be absorbed by the human body through the respiratory system, it provides users with a new alternative absorption method, such as herbal The aerosol-like or cream-like aerosol-generating substrate is baked and heated to generate an aerosol atomizer, which is used in different fields to deliver inhalable aerosols to users, replacing conventional product forms and absorption methods.

Electronic atomization devices usually use resistive or electromagnetic induction to heat the aerosol-generating substrate, but the above two heating methods require a long warm-up waiting time, which is not convenient for users to use. Moreover, resistive heating uses an external power supply to energize the resistive element to generate heat, and the heated resistive element then transfers heat to the aerosol-generating substrate through heat conduction. The heat conduction takes time and there is a hysteresis, so it will cause the gas close to the resistive element The sol-forming matrix is often overburned or even burnt, and the high temperature is overburned or burnt, resulting in poor consistency of taste. Moreover, when the resistance heating element is heated in contact with the aerosol-generating substrate, the metal substance in the resistance heating element may enter into the aerosol formed by the atomization of the aerosol-generating substrate, affecting the taste of the atomization.

Therefore, the traditional method of heating the aerosol-generating substrate takes a long time to warm up, and the taste of atomization is not good.

Contents of the invention

Based on this, it is necessary to provide an atomizer and an electronic atomization device to solve the problems of long warm-up waiting time and poor atomization taste of the traditional electronic atomization device.

A nebulizer comprising:

a heating element, a heating cavity is formed inside the heating element; and

At least one set of electrode assemblies, each set of electrode assemblies includes a first electrode and a second electrode, both of the first electrode and the second electrode protrude into the heating cavity, and the first electrode in the heating cavity An arc can be controlled to generate plasma between the first electrode and the second electrode;

Wherein, the heating element can form an accommodating position for accommodating the aerosol-generating substrate.

In the above-mentioned atomizer, both the first electrode and the second electrode are inserted into the heating chamber of the heating element, and an arc is generated by breakdown between the first electrode and the second electrode powered by AC or DC, and then in the heating chamber The ionized gas forms a plasma, which heats the heating chamber. In addition, the heating element can form an accommodating position for accommodating the aerosol-generating substrate, and the accommodating position can conduct heat conduction with the heating chamber. After the inside of the heating chamber generates heat under the action of the plasma, the heat can be transferred to the accommodating position, and then the aerosol generating substrate disposed on the accommodating position is heated. In this way, the heat generated by the plasma in the heating chamber is used to quickly heat the aerosol-generating substrate, shortening the waiting time for preheating, making it convenient for users to use, and preventing the aerosol-generating substrate from being burnt due to too long preheating time, and improving the taste of atomization. At the same time, metal parts such as electrodes do not need to be in direct contact with the aerosol-generating substrate during the heating process, which can prevent the aerosol-generating substrate from being doped with metal substances after atomization, and further improve the taste of atomization.

In one of the embodiments, the heating chamber is filled with inert gas.

In one embodiment, the air pressure in the heating chamber is less than standard atmospheric pressure.

In one embodiment, the heating element is made of any one of quartz glass, silicon carbide, silicon nitride, zirconia and aluminum oxide.

In one of the embodiments, part of the outer surface of the heating element is inwardly recessed to form a first accommodating cavity with an open end, and the heating cavity is arranged around the periphery of the first accommodating cavity;

Wherein, the first accommodating cavity is configured as the accommodating position.

In one of the embodiments, the heating cavity includes a first sub-cavity and a second sub-cavity, the first sub-cavity is annularly arranged around the periphery of the first accommodating cavity, and the second sub-cavity The cavity is located at the bottom of the first accommodating cavity facing away from its opening, and communicates with the first sub-cavity;

At least one of the first sub-cavity and the second sub-cavity protrudes into the electrode assembly.

In one of the embodiments, the heating element includes a mounting seat and a heating seat arranged on the mounting seat, the heating cavity is formed inside the mounting seat, and a second container with an open end is formed inside the heating seat. The heating chamber is located at the bottom of the second accommodating chamber facing away from its opening;

Wherein, the second accommodating cavity is configured as the accommodating position.

In one of the embodiments, the heating element includes a mounting base and a heating base arranged on the mounting base, the heating chamber includes a third sub-cavity and a fourth sub-cavity, and the third sub-cavity formed inside the mounting seat, the fourth sub-cavity is formed inside the heating seat and communicates with the third sub-cavity;

Wherein, the outer surfaces of the installation seat and the heating seat facing each other are configured to form the accommodating position surrounding the heating seat.

In one of the embodiments, the mounting seat is integrally formed with the heating seat; or

The mounting seat and the heating seat are formed separately.

In one of the embodiments, the heating seat and the installation seat are separately formed, and after the heating seat and the installation seat are fixedly connected, a heat conduction cavity is formed between the two, and the heat conduction cavity is filled with heat conduction medium.

An electronic atomization device, comprising the aforementioned atomizer.

In one of the embodiments, it further includes a casing, the atomizer is arranged in the casing, and an air inlet channel flowing through the outer periphery of the heating element and entering the accommodating position is formed in the casing.

In one of the embodiments, the heating element includes a mounting base and a heating base arranged on the mounting base, the heating chamber includes a third sub-cavity and a fourth sub-cavity, and the third sub-cavity Formed inside the installation seat, the fourth sub-cavity is formed inside the heating seat and communicates with the third sub-cavity; wherein, the third sub-cavity extends into the electrode assembly, The outer surfaces of the installation seat and the heating seat facing each other are configured to form the receiving position surrounding the heating seat;

The air intake channel is configured to flow through the outer periphery of the base to the receiving position.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only It is an embodiment of the present application, and those of ordinary skill in the art can also obtain other drawings according to the disclosed drawings on the premise of not paying creative efforts.

Fig. 1 is a schematic structural diagram of an atomizer in an embodiment of the present application;

Fig. 2 is a schematic structural diagram of an atomizer in another embodiment of the present application;

Fig. 3 is a schematic structural diagram of an atomizer in another embodiment of the present application;

Fig. 4 is a schematic structural diagram of an atomizer in another embodiment of the present application;

Fig. 5 is a schematic structural diagram of an atomizer in another embodiment of the present application;

FIG. 6 is a schematic cross-sectional view of an electronic atomization device in an embodiment of the present application.

Reference numerals: 100, atomizer; 10, heating element; 11, heating cavity; 112, first sub-cavity; 114, second sub-cavity; 116, third sub-cavity; 118, fourth sub-cavity body; 12, installation seat; 14, heating seat; 15, accommodation position; 30, electrode assembly; 32, first electrode; 34, second electrode; 50, heat conduction chamber; 200, electronic atomization device; 210, shell ; 211, air intake channel.

Detailed ways

In order to make the above-mentioned purpose, features and advantages of the present application more obvious and understandable, the specific implementation manners of the present application will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the application. However, the present application can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial" , "radial", "circumferential" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the application and simplifying the description, rather than indicating or implying the referred device or Elements must have certain orientations, be constructed and operate in certain orientations, and thus should not be construed as limiting the application.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present application, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

In this application, terms such as "installation", "connection", "connection" and "fixation" should be interpreted in a broad sense, for example, it can be a fixed connection or a detachable connection, unless otherwise clearly specified and limited. , or integrated; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components or the interaction relationship between two components, unless otherwise specified limit. Those of ordinary skill in the art can understand the specific meanings of the above terms in this application according to specific situations.

In the present application, unless otherwise clearly specified and limited, a first feature being "on" or "under" a second feature may mean that the first and second features are in direct contact, or that the first and second features are indirect through an intermediary. touch. Moreover, "above", "above" and "above" the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. "Below", "beneath" and "beneath" the first feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontally than the second feature.

It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions are for the purpose of illustration only and are not intended to represent the only embodiments.

Referring to Fig. 1, in one embodiment of the present application, an atomizer 100 is provided, which heats the aerosol-generating substrate through plasma heating, and utilizes the high energy density characteristics of plasma heating to realize immediate Rapid heating and atomization can effectively shorten the preheating time, prevent burnt burns caused by too long preheating time, and improve the taste of atomization.

The atomizer 100 includes a heating element 10 and at least one set of electrode assemblies 30. A heating cavity 11 is formed inside the heating element 10. Each set of electrode assemblies 30 includes a first electrode 32 and a second electrode 34, and the first electrode 32 and the second electrode 34 all protrude into the heating chamber 11, in the heating chamber 11 between the first electrode 32 and the second electrode 34 can be controlled to form an arc and generate plasma. It is equivalent to extending the first electrode 32 and the second electrode 34 into the heating chamber 11 of the heating element 10, and generating an arc between the first electrode 32 and the second electrode 34 powered by AC or DC power supply, and then The ionized gas in the heating chamber 11 forms plasma, and the plasma makes the heating chamber 11 generate heat. Moreover, the heating element 10 can form an accommodating position 15 for carrying the aerosol generating substrate, and the accommodating position 15 can conduct heat conduction with the heating chamber 11 . After the inside of the heating chamber 11 generates heat under the action of the plasma, the heat can be transferred to the accommodating position 15 , thereby heating the aerosol-generating substrate disposed on the accommodating position 15 .

In this way, the heat generated by the plasma in the heating chamber 11 is used to rapidly heat the aerosol-generating substrate, and the high energy density of plasma heating is used to shorten the waiting time for preheating, which is convenient for users to use, and prevents the aerosol from being burnt due to too long preheating time. The aerosol-generating matrix enhances the taste of atomization. At the same time, metal parts such as electrodes do not need to be in direct contact with the aerosol-generating substrate during the heating process, which can prevent the aerosol-generating substrate from being doped with metal substances after atomization, and further improve the taste of atomization.

In some embodiments, the first electrode 32 and the second electrode 34 in each group of electrode assemblies 30 are all made of any one of tungsten alloy, carbon fiber and copper alloy, and the diameter range of the first electrode 32 and the second electrode 34 is 0.4-1.0mm, and the distance between the first electrode 32 and the second electrode 34 is 5-10mm.

Referring to Fig. 1, optionally, the quantity of electrode assembly 30 is set as one group; Referring to Fig. 2, also optionally, the quantity of electrode assembly 30 is multiple groups, and multiple groups of electrode assemblies 30 can discharge in parallel at the same time, or multiple groups of electrodes The modules 30 are sequentially discharged sequentially. Moreover, on the heating element 10 , all the first electrodes 32 and all the second electrodes 34 are distributed symmetrically with respect to a symmetry reference, so as to form a uniform temperature field in the heating chamber 11 .

In some embodiments, the heating chamber 11 is filled with an inert gas, and after the arc is broken down between the first electrode 32 and the second electrode 34 in the heating chamber 11, the inert gas filled in the heating chamber 11 can be ionized to form a plasma and Heat is generated, and the generated heat can be efficiently transferred to the accommodating position 15 through the inert gas, thereby improving the heat transfer efficiency. For example, the heating chamber 11 is filled with gases such as helium, neon, and argon. Understandably, in some other embodiments, the heating chamber 11 may also be filled with air, which is not limited here.

In some embodiments, the air pressure inside the heating chamber 11 is less than the standard atmospheric pressure, so that the pressure inside the heating chamber 11 is kept at a relatively low level, so that excessive pressure will not be generated on the wall of the heating chamber 11 (ie, the heating element 10 ), and then The wall thickness and strength of the heating element 10 can be reduced to further improve the heat transfer efficiency. For example, the air pressure inside the heating chamber 11 is between 1/5 atmospheric pressure and 1 atmospheric pressure; preferably, the air pressure inside the heating chamber 11 is 1/5 to 1/3 atmospheric pressure. Understandably, in some other embodiments, the air pressure inside the heating chamber 11 may also be set to standard atmospheric pressure, which is not limited here.

Optionally, the heating element 10 is made of any one of quartz glass, silicon carbide, silicon nitride, zirconia and aluminum oxide, so that the heating element 10 has better insulation and prevents the ionized gas inside the heating element 10 from At the same time, the heating element 10 has better thermal conductivity, which facilitates the heat generated by the ionized gas in the heating chamber 11 to pass through the heating element 10 to the accommodating position 15 . Optionally, the wall thickness of the heating element 10 is 0.4-1.0 mm, which not only meets the strength requirement but also conducts heat efficiently.

Referring to FIGS. 1-2 , in some embodiments, part of the outer surface of the heating element 10 is recessed inwardly to form a first accommodating cavity with an open end, and the heating cavity 11 is arranged around the periphery of the first accommodating cavity; wherein, the first accommodating cavity The cavity is configured as accommodating place 15 . Equivalently, part of the outer surface of the heating element 10 is recessed inwardly to form the first accommodation chamber, and a heating chamber 11 is provided on the periphery of the first accommodation chamber, so that the heat generated in the heating chamber 11 can be transferred to the outer periphery of the first accommodation chamber. At each position, the aerosol-generating substrate in the first accommodating chamber can be heated uniformly and rapidly.

Further, the heating cavity 11 includes a first sub-cavity 112 and a second sub-cavity 114, the first sub-cavity 112 is arranged in a ring around the periphery of the first accommodating cavity, and the second sub-cavity 114 is located in the first accommodating cavity The cavity faces away from the bottom of its opening and communicates with the first sub-cavity 112 . Equivalently, the first sub-cavity 112 surrounds the outer peripheral side of the first accommodating cavity, the second sub-cavity 114 is arranged at the bottom of the first accommodating cavity, and the first sub-cavity 112 and the second sub-cavity 114 communicate The formed heating cavity 11 completely surrounds the outer circumference of the first accommodation cavity, and heat is uniformly transferred to the first heating cavity 11 from all directions.

Moreover, at least one of the first sub-cavity 112 and the second sub-cavity 114 protrudes into the electrode assembly 30, which means that the electrode assembly 30 can be set to protrude into the first sub-cavity 112, or the electrode assembly 30 can be It is set to extend into the second sub-wall, or the electrode assembly 30 is provided with multiple groups, and the first sub-cavity 112 and the second sub-wall are all extended into the electrode assembly 30, so that the electrode assembly 30 generates an arc to ionize The gas in the chamber 11 is heated to form plasma and heat. For example, the electrode assembly 30 only extends into the first sub-cavity 112, the heat generated by the ionized gas of the electrode assembly 30 can flow to the second sub-cavity 114, and can be heated by the first sub-cavity 112 and the second sub-cavity 114. The aerosol-generating substrate on the receiving position 15. Similarly, if the electrode assembly 30 is only inserted into the second sub-cavity 114, the heat generated in the second sub-cavity 114 can still be transferred to the first sub-cavity 112, and can also pass through the first sub-cavity 112. And the second sub-cavity 114 heats the aerosol-generating substrate on the accommodation position 15 .

It can be understood that in some other embodiments, the heating chamber 11 only includes any one of the first sub-cavity 112 and the second sub-cavity 114 , and can also transfer the heat inside itself to the adjacent accommodating position 15 , is not limited here.

Referring to Fig. 3, in other embodiments, the heating element 10 includes a mounting base 12 and a heating base 14 arranged on the mounting base 12, the heating chamber 11 includes a third sub-cavity 116 and a fourth sub-cavity 118, the third sub-cavity The cavity 116 is formed inside the mounting seat 12, and the fourth sub-cavity 118 is formed inside the heating seat 14 and communicates with the third sub-cavity 116; wherein, the third sub-cavity 116 extends into the electrode assembly 30, and the mounting seat 12 and the outer surfaces of the heating seat 14 facing each other are configured to form an accommodating position 15 surrounding the heating seat 14 . Optionally, the heating seat 14 is elongated, and the fourth sub-cavity 118 extends along the axial direction of the heating seat 14 inside the heating seat 14 and communicates with the third sub-cavity 116 .

Equivalently, the heating seat 14 is configured as a heating needle, and the accommodating position 15 for accommodating the aerosol generating substrate is defined between the heating seat 14 and the mounting seat 12. When the atomizer 100 is used, the aerosol generating substrate Inserted on the heating base 14 , the space between the outer surfaces of the heating base 14 and the mounting base 12 facing each other (that is, the accommodating position 15 ) accommodates and fixes the aerosol generating substrate. Moreover, a third sub-cavity 116 is formed inside the installation seat 12, a fourth sub-cavity 118 communicating with the third sub-cavity 116 is formed inside the heating seat 14, and the third sub-cavity 116 extends into the electrode assembly 30, When the arc ionization gas formed by the breakdown between the first electrode 32 and the second electrode 34 in the third sub-cavity 116, plasma and heat are formed in the third sub-cavity 116, and the heat formed can also be obtained from the first electrode 32 and the second electrode 34. The third sub-cavity 116 flows to the fourth sub-cavity 118 to make the heating seat 14 generate heat to heat the aerosol generating substrate.

Referring to Fig. 4-Fig. 5, in some other embodiments, the heating element 10 includes a mounting seat 12 and a heating seat 14 arranged on the mounting seat 12, a heating chamber 11 is formed inside the mounting seat 12, and an opening at one end is formed inside the heating seat 14 The second accommodating cavity, the heating cavity 11 is located at the bottom of the second accommodating cavity facing away from its opening; wherein, the second accommodating cavity is configured as an accommodating position 15 . Equivalently, a heating cavity 11 is formed in the mounting seat 12 of the heating element 10, and heat is formed in the heating cavity 11 through the action of the first electrode 32 and the second electrode 34, and the formed heat can be transferred to the second electrode of the top heating seat 14. The aerosol-generating substrate in the accommodating position 15 is heated.

Referring to FIG. 4 , optionally, the heating seat 14 is integrally formed with the mounting seat 12 to simplify the device. Referring to Fig. 5, it is also optional that the heating seat 14 and the mounting seat 12 are separately formed, and the heating seat 14 and the mounting seat 12 can be manufactured separately, so that the atomizer 100 can be easily made as a standard part, and the universality of the atomizer 100 can be improved. sex.

Referring to Fig. 5, further, the heating seat 14 and the mounting seat 12 are separately formed, and after the heating seat 14 and the mounting seat 12 are fixedly connected, a heat conduction chamber 50 is defined between the two, and the heat conduction chamber 50 is filled with a heat conduction medium to pass through the heat conduction chamber. The medium efficiently transfers the heat generated inside the installation seat 12 to the accommodating position 15 of the heating seat 14 to ensure heat conduction performance. Among them, the heat conduction medium is a phase change interface heat transfer medium, such as toluene, water, naphthalene, thermoconductor and aluminum bromide, which have good heat exchange efficiency.

Referring to FIG. 6 , in an embodiment of the present application, an electronic atomization device 200 is also provided, including the aforementioned atomizer 100 , which has shorter waiting time for preheating and better atomization taste.

In some embodiments, the electronic atomization device 200 further includes a casing 210, and the atomizer 100 is disposed in the casing 210, and an air inlet passage 211 is formed in the casing 210 to flow through the outer periphery of the heating element 10 and enter the accommodation position 15, so that the user can When the electronic atomization device 200 is pumped, the outside air flows into the casing 210, then flows through the outer periphery of the heating element 10, takes away the heat from the outer surface of the heating element 10, and at the same time makes the temperature of the airflow itself rise and then enters the accommodation position 15, to be mixed with the aerosol generated by atomization in the accommodation position 15, and finally carry the aerosol into the user's mouth for inhalation by the user. In this way, through the guidance of the air intake channel 211, the air flow first passes through the outer periphery of the heating element 10 and then enters the accommodation position 15, so that on the one hand, the outer periphery of the heating element 10 can be cooled, and on the other hand, it can prevent the air from entering the accommodation position. 15 airflow for preheating to improve the atomization effect.

Specifically, the heating element 10 includes a mounting base 12 and a heating base 14 disposed on the mounting base 12, the heating cavity 11 includes a third sub-cavity 116 and a fourth sub-cavity 118, and the third sub-cavity 116 is formed on the mounting base. 12, the fourth subcavity 118 is formed inside the heating seat 14 and communicates with the third subcavity 116; wherein, the third subcavity 116 extends into the electrode assembly 30, and the mounting seat 12 and the heating seat 14 face each other The outer surface of is configured to form a receiving position 15 surrounding the heating seat 14 . Equivalently, the mounting seat 12 of the heating element 10 forms a third sub-cavity 116, and heat is formed in the third sub-cavity 116 through the action of the first electrode 32 and the second electrode 34, and the formed heat can be transferred to the heating seat 14 inside the fourth subcavity 118 to heat the aerosol generating substrate inserted on the heating base 15 .

Moreover, the air intake channel 211 is configured to flow through the outer periphery of the mounting base 12 to the accommodating position 15, so that the air intake channel 211 first flows through the outer circumference of the third sub-cavity 116, so that the air flow and the outer circumference of the mounting base 12 The outer surface enters the accommodation position 15 of the heating seat 14 after exchanging heat.

It can be understood that, in some other embodiments, the air intake channel 211 may not flow through the mounting seat 12, and directly enter the accommodating position 15 from the outside, so as to simplify the structure of the air channel. Do limited.

The technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, should be considered as within the scope of this specification.

The above-mentioned embodiments only express several implementation modes of the present application, and the description thereof is relatively specific and detailed, but should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the scope of protection of the patent application should be based on the appended claims.

Claims

An atomizer, characterized in that the atomizer comprises:

a heating element, a heating cavity is formed inside the heating element; and

At least one set of electrode assemblies, each set of electrode assemblies includes a first electrode and a second electrode, both of the first electrode and the second electrode protrude into the heating cavity, and the first electrode in the heating cavity An arc can be controlled to generate plasma between the first electrode and the second electrode;

Wherein, the heating element can form an accommodating position for accommodating the aerosol-generating substrate.
The atomizer according to claim 1, wherein the heating chamber is filled with inert gas.
The atomizer according to claim 1, wherein the air pressure in the heating chamber is less than standard atmospheric pressure.
The atomizer according to claim 1, wherein the heating element is made of any one of quartz glass, silicon carbide, silicon nitride, zirconia and aluminum oxide.
The atomizer according to any one of claims 1-4, wherein a part of the outer surface of the heating element is recessed inwardly to form a first accommodating cavity with an open end, and the heating cavity surrounds the first accommodating cavity. The peripheral setting of the cavity;

Wherein, the first accommodating cavity is configured as the accommodating position.
The atomizer according to claim 5, wherein the heating cavity comprises a first sub-cavity and a second sub-cavity, and the first sub-cavity surrounds the periphery of the first accommodating cavity in a Arranged in a ring, the second sub-cavity is located at the bottom of the first accommodating cavity facing away from its opening, and communicates with the first sub-cavity;

At least one of the first sub-cavity and the second sub-cavity protrudes into the electrode assembly.
The atomizer according to claim 1, wherein the heating element comprises a mounting seat and a heating seat arranged on the mounting seat, the heating cavity is formed inside the mounting seat, and the heating seat A second accommodating cavity with one end open is formed inside, and the heating cavity is located at the bottom of the second accommodating cavity facing away from its opening;

Wherein, the second accommodating cavity is configured as the accommodating position.
The atomizer according to claim 1, wherein the heating element includes a mounting base and a heating base arranged on the mounting base, and the heating chamber includes a third sub-cavity and a fourth sub-cavity , the third sub-cavity is formed inside the mounting seat, the fourth sub-cavity is formed inside the heating seat and communicates with the third sub-cavity;

Wherein, the third sub-cavity protrudes into the electrode assembly, and the outer surfaces of the mounting seat and the heating seat facing each other are configured to form the accommodating position surrounding the heating seat.
The atomizer according to claim 7 or 8, characterized in that, the mounting seat is integrally formed with the heating seat; or

The mounting seat and the heating seat are formed separately.
The atomizer according to claim 9, wherein the heating seat and the mounting seat are formed separately, and after the heating seat and the mounting seat are fixedly connected, a heat conduction cavity is formed between them, The heat conduction cavity is filled with heat conduction medium.
An electronic atomization device, characterized by comprising the atomizer according to any one of claims 1-10.
The electronic atomization device according to claim 11, further comprising a housing, the atomizer is arranged in the housing, and the housing is formed to flow through the outer periphery of the heating element into the accommodating bit intake channel.
The electronic atomization device according to claim 12, characterized in that,

The heating element includes a mounting seat and a heating seat arranged on the mounting seat, the heating chamber includes a third sub-cavity and a fourth sub-cavity, and the third sub-cavity is formed inside the mounting seat , the fourth sub-cavity is formed inside the heating seat and communicates with the third sub-cavity; wherein, the third sub-cavity protrudes into the electrode assembly, and the mounting seat and the mutually facing outer surfaces of the heating bases are configured to form the accommodation around the heating bases;

The air intake channel is configured to flow through the outer periphery of the base to the receiving position.