Atomizers and electronic atomizers

Abstract

The present application relates to an atomizer and an electronic atomizer. The atomizer (100) includes a heating member (10) having a heating cavity (11) and a receiving cavity (13) formed therein, the receiving cavity (13) being thermally conductive to the heating cavity (11), an electrode assembly (30) including a first electrode (32) and a second electrode (34) each at least partially inserted into the heating cavity (11), and a magnetic member (50) provided outside the heating member (10) and configured to apply a magnetic field to the heating cavity (11). The magnetic field is controlled to form a magnetic rotating arc between the first electrode (32) and the second electrode (34) in the heating cavity (11) that rotates around the axis of the heating cavity (11). By supplying a high voltage to the first electrode and the second electrode, a dielectric breakdown occurs in the heating cavity (11) to form an arc. The magnetic member (50) applies a magnetic field to the heated cavity (11) and applies an electric field force to the arc to rotate the arc about the axis of the heated cavity (11), further forming a magnetic rotating arc.

Description

[Technical Field]

[0001] (CROSS-REFERENCE TO RELATED APPLICATIONS) This application claims priority to a Chinese patent application bearing application number 2022202663729 and entitled "Atomizer and Electronic Atomization Device" filed with the State Intellectual Property Office of the People's Republic of China on February 9, 2022, the entire contents of which are incorporated herein by reference.

[0002] This application relates to the technical field of atomization, and in particular to atomizers and electronic atomization devices. [Background technology]

[0003] Aerosols are colloidal dispersions formed by the dispersion and suspension of fine solid or liquid particles in a gas medium. Aerosols are inhaled into the human body via the respiratory system, providing users with a new, alternative inhalation method. For example, atomizers that generate aerosols by baking and heating aerosol-generating substrates, such as herbs or pastes, are used in various fields and can provide users with inhalable aerosols, replacing conventional product forms and inhalation methods. Electronic atomizers typically heat the aerosol-generating substrate using resistance or electromagnetic induction. Summary of the Invention [Problem to be solved by the invention]

[0004] In conventional technologies, whether resistance heating or electromagnetic induction heating is used, the long preheating time required to heat the aerosol-generating substrate reduces user convenience. Furthermore, in resistance heating, an external power source is used to energize a resistance element, which then transfers heat to the aerosol-generating substrate via thermal conduction. This requires time for heat conduction, and hysteresis exists, resulting in overheating or burning of the aerosol-generating substrate in close proximity to the resistance element, which can adversely affect the uniformity of the inhalation sensation. Furthermore, when the resistance heating element comes into contact with the aerosol-generating substrate and heats it, metal materials in the resistance heating element may enter the aerosol formed by atomizing the aerosol-generating substrate, potentially affecting the inhalation sensation of the atomized aerosol.

[0005] Therefore, there is a need to provide an atomizer and an electronic atomizer to address the problem of poor atomization sensation in inhalation of conventional electronic atomizers. [Means for solving the problem]

[0006] A first aspect of the present application provides an atomizer including: a heating element having a heating cavity formed therein and a storage cavity arranged to be thermally conductive to the heating cavity; an electrode assembly including a first electrode and a second electrode, both of which have at least a portion inserted into the heating cavity; and a magnetic element arranged outside the heating element and configured to apply a magnetic field to the heating cavity, wherein the atomizer is controlled so that, by the action of the magnetic field, a magnetic rotating arc that rotates around the axis of the heating cavity is formed between the first electrode and the second electrode within the heating cavity.

[0007] In the atomizer, at least a portion of each of the first and second electrodes is inserted into the heating cavity. After high voltage is applied to the first and second electrodes, a dielectric breakdown occurs within the heating cavity, forming an arc between them. At the same time, the magnetic member applies a magnetic field to the heating cavity and an electric field to the arc, causing the arc to rotate around the axis of the heating cavity, forming a magnetic rotating arc. In this way, rather than forming an arc only at a certain location within the heating cavity to generate plasma and raise the temperature, a rotating arc exists throughout the heating cavity, forming an arc surface surrounding the heating cavity, thereby heating the entire heating cavity and forming a uniform temperature field. This allows the aerosol-generating substrate to be efficiently and uniformly heated and atomized using plasma, further improving the inhalation sensation of the atomized substance.

[0008] In a first aspect of the present application, the magnetic member includes a magnetic ring fitted onto the heating member, and an orthogonal projection of the magnetic ring onto an axial cross section of the heating cavity covers an orthogonal projection of the heating cavity itself onto the same axial cross section.

[0009] In a first aspect of the present application, the first electrode includes a discharge ring positioned within the heating cavity, the discharge ring extending along the outer periphery of the heating cavity, and the discharge end of the second electrode positioned within the heating cavity is located on the central axis of the discharge ring.

[0010] In the first aspect of the present application, the discharge end of the second electrode is configured to have a columnar or annular shape.

[0011] In a first aspect of the present application, the heating cavity is located at the axial bottom of the accommodating cavity, and the discharge end of the second electrode is flush with the center point of the discharge ring, or the discharge end of the second electrode is lowered a predetermined distance in a direction away from the accommodating cavity relative to the center point of the discharge ring.

[0012] In a first aspect of the present application, the heating element includes a tube, a partition plate, and a bottom plate, the partition plate and the bottom plate being arranged within the tube at intervals along the axial direction of the tube, the heating cavity being defined between the partition plate, the tube, and the bottom plate, and the storage cavity being defined between the surface of the partition plate opposite the bottom plate and the tube.

[0013] In a first aspect of the present application, the heating cavity includes a first heating cavity and a second heating cavity that communicate with each other, the first heating cavity surrounds the outer periphery of the accommodating cavity in the radial direction, and the second heating cavity is located at the bottom of the accommodating cavity in the axial direction. The discharge ring is located in the first heating cavity and surrounds the outer periphery of the accommodating cavity, and the discharge end of the second electrode is located in the second heating cavity and has a step between it and the center point of the discharge ring.

[0014] In a first aspect of the present application, the first electrode further includes an electrical connection connected to the discharge ring and at least a portion of which is located within the heating cavity, wherein a distance along a radial direction of the heating cavity between the electrical connection and the second electrode is greater than a radial distance between the discharge ring and the second electrode.

[0015] In the first aspect of the present application, the electrical connection portion and the second electrode are relatively insulated from each other.

[0016] In a first aspect of the present application, the heating cavity includes a third heating cavity surrounding the outer periphery of the accommodating cavity in the radial direction, the first electrode includes a first discharge ring, and the second electrode includes a second discharge ring, both of which are located within the third heating cavity and are spaced apart in the axial direction around the outer periphery of the accommodating cavity.

[0017] In a first aspect of the present application, the heating member is made of an infrared emitting material.

[0018] In a first aspect of the present application, the bottom wall of the containing cavity faces the heating cavity, and the bottom wall is coated with an infrared emitting coating.

[0019] A second aspect of the present application provides an electronic atomization device including the atomizer according to the first aspect. [Brief explanation of the drawings]

[0020] [Figure 1] 1 is a cross-sectional view of an atomizer according to an embodiment of the present application. [Figure 2] FIG. 2 is a schematic exploded view of the atomizer shown in FIG. 1. [Figure 3] FIG. 2 is a schematic cross-sectional view of an atomizer according to another embodiment of the present application. [Figure 4] FIG. 4 is a schematic exploded view of the atomizer shown in FIG. 3. DETAILED DESCRIPTION OF THE INVENTION

[0021] In order to make the above-mentioned objects, features, and advantages of the present application clearer and easier to understand, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, many specific details are set forth to provide a thorough understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present application, so the present application is not limited by the specific examples disclosed below.

[0022] In the description of this application, orientations or positional relationships indicated by terms such as "center," "longitudinal direction," "lateral direction," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial direction," "radial direction," "circumferential direction," etc. are orientations or positional relationships shown in the drawings, and are used only to facilitate or simplify the description of this application, and it should be understood that these do not represent or imply that the devices or parts shown necessarily have a specific orientation or a specific oriented structure and operation, and therefore should not be construed as limiting this application.

[0023] Additionally, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply a relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature qualified as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of this application, unless explicitly and specifically limited, "plurality" means at least two, e.g., two, three, etc.

[0024] In this application, unless otherwise clearly specified or limited, the terms "attached," "coupled," "connected," etc. should be understood in a broad sense, and may refer to, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection via an intermediate medium, an internal communication between two members, or an interactive relationship between two members. Those skilled in the art can understand the specific meanings of the above terms in this application according to specific circumstances.

[0025] In this application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include direct contact between the first and second features, or indirect contact between the first and second features via an intermediate medium. Furthermore, a first feature being "above," "above," and "on the upper surface" of a second feature may include the first feature being directly above or diagonally above the second feature, or may simply mean that the horizontal height of the first feature is higher than that of the second feature. A first feature being "below," "below," and "on the lower surface" of a second feature may include the first feature being directly below or diagonally below the second feature, or may simply mean that the horizontal height of the first feature is lower than that of the second feature.

[0026] It should be noted that when an element is referred to as being "fixed" or "mounted" on another element, it may be directly on the other element, or there may be intervening elements present. When an element is considered to be "connected" to another element, the element may be directly connected to the other element, but there may also be intervening elements present between them. The terms "vertical," "horizontal," "top," "bottom," "left," "right," and similar terms used herein are for illustrative purposes only and do not represent the only embodiment.

[0027] 1 and 2, an atomizer 100 according to one embodiment of the present application is shown. The atomizer 100 heats and atomizes an aerosol-generating substrate using plasma generated by a magnetic rotating arc. On the one hand, the high energy density of plasma heating is utilized to achieve instantaneous and rapid heating and atomization, effectively shortening preheating time, preventing scorching caused by excessive preheating time, and improving the inhalation feel of the atomized substance. On the other hand, the plasma generated by the magnetic rotating arc is more uniform, forming a more uniform temperature field, which allows the aerosol-generating substrate to be uniformly heated and atomized, further improving the inhalation feel of the atomized substance.

[0028] 1 and 2, the atomizer 100 includes a heating member 10, an electrode assembly 30, and a magnetic member 50. The heating member 10 includes a heating cavity 11 and a receiving cavity 13, which is thermally conductive with respect to the heating cavity 11 and receives an aerosol-generating substrate. The electrode assembly 30 includes a first electrode 32 and a second electrode 34, both of which are at least partially disposed within the heating cavity 11. The magnetic member 50 is disposed outside the heating member 10 and is configured to apply a magnetic field to the heating cavity 11. The magnetic field acts to control the magnetic field between the first electrode 32 and the second electrode 34 within the heating cavity 11, so as to form a magnetic rotating arc that rotates around the axis of the heating cavity 11.

[0029] At least a portion of each of the first electrode 32 and the second electrode 34 extends into the heating cavity 11. After high voltage is applied to the first electrode 32 and the second electrode 34, a dielectric breakdown occurs between them within the heating cavity 11, forming an arc. At the same time, the magnetic member 50 applies a magnetic field to the heating cavity 11 and an electric field force to the arc, causing the arc to rotate around the axis of the heating cavity 11, thereby forming a magnetic rotating arc. In this way, rather than forming an arc only at a certain location within the heating cavity 11 to generate plasma and raise the temperature, a rotating arc exists throughout the heating cavity 11, forming an arc surface surrounding the heating cavity 11, thereby heating the entire heating cavity 11 and forming a uniform temperature field. This allows the aerosol-generating substrate to be efficiently and uniformly heated and atomized using plasma, further improving the inhalation sensation of the atomized substance.

[0030] In some embodiments, the magnetic member 50 includes a magnetic ring fitted around the heating member 10, such that the orthogonal projection of the magnetic ring onto the axial cross section of the heating cavity 11 covers the orthogonal projection of the heating cavity 11 onto the same axial cross section. That is, the magnetic ring covers at least the outer periphery of the heating cavity 11 and applies an electric field force perpendicular to the arc within the heating cavity 11, causing the arc to rotate around the axis of the heating cavity 11 due to the electric field force. Specifically, the magnetic ring is disposed coaxially with the heating cavity 11, thereby forming a magnetic rotating arc within the heating cavity 11 that rotates around the axis of the heating cavity 11, thereby homogenizing the temperature field within the heating cavity 11 and further uniformly heating the aerosol-generating substrate within the storage cavity 13. The heating cavity 11 is also disposed coaxially with the storage cavity 13, thereby allowing the temperature field within the heating cavity 11 to act uniformly on the aerosol-generating substrate within the storage cavity 13.

[0031] In some other embodiments, the magnetic member 50 may be configured to include a structure such as a plurality of sub-magnets arranged along the circumferential direction of the heating member 10. The specific structure of the magnetic member 50 is not limited here, and it is sufficient if it can apply a magnetic field force perpendicular to the arc within the heating cavity 11.

[0032] In some embodiments, the first electrode 32 includes a discharge ring 321 located within the heating cavity 11. The discharge ring 321 extends along the circumferential direction of the heating cavity 11, and the discharge end of the second electrode 34 located within the heating cavity 11 is located on the central axis of the discharge ring 321. In this manner, the discharge ring 321 is provided within the heating cavity 11, and the extension direction of the discharge ring 321 is parallel to the circumferential direction of the heating cavity 11, which corresponds to the discharge ring 321 being provided coaxially with the heating cavity 11. Then, the discharge end of the second electrode 34 is provided on the central axis of the discharge ring 321. In this manner, an arc is formed between the discharge end of the second electrode 34 and the discharge ring 321. After this, the arc rotates along the circumferential direction of the discharge ring 321 due to the magnetic field, forming a magnetic rotating arc, which further uniformly heats and atomizes the aerosol-generating substrate.

[0033] Furthermore, the discharge end of the second electrode 34 is configured to have a columnar or annular shape, i.e., it may be a columnar element or a small-diameter annular element. Whether it is a columnar element or an annular element, dielectric breakdown occurs between the discharge ring 321 of the first electrode 32, and a discharge can be generated. Preferably, the discharge distance is within a range of 2 mm to 8 mm.

[0034] Preferably, the first electrode 32 and the second electrode 34 of the electrode assembly 30 are made of any one of tungsten alloy, carbon fiber, copper alloy, and graphite, or any combination thereof. The diameters of the first electrode 32 and the second electrode 34 are both in the range of 0.4 mm to 1.5 mm. Preferably, the radius of the discharge ring 321 is in the range of 3 mm to 6 mm. In some embodiments, the heating cavity 11 is filled with an inert gas. After a dielectric breakdown occurs between the first electrode 32 and the second electrode 34 in the heating cavity 11 to generate an arc, the inert gas filled in the heating cavity 11 is ionized to form plasma, generating heat. The generated heat is efficiently transferred to the receiving cavity 13 via the inert gas, improving heat transfer efficiency. For example, the heating cavity 11 may be filled with a gas such as helium gas, neon gas, or argon gas. In some other embodiments, the heating cavity 11 may be filled with air; this is not a limitation.

[0035] In some embodiments, the air pressure inside the heating cavity 11 is lower than standard atmospheric pressure. Maintaining the pressure inside the heating cavity 11 at a low level prevents excessive pressure from being applied to the cavity wall of the heating cavity 11 (i.e., the heating element 10), and allows the thickness and strength of the heating element 10 to be reduced, thereby further improving heat transfer efficiency. For example, the air pressure inside the heating cavity 11 is 1 / 5 atmosphere to 1 atmosphere. Preferably, the air pressure inside the heating cavity 11 is 1 / 5 atmosphere to 1 / 3 atmosphere. Note that in some other embodiments, the air pressure inside the heating cavity 11 may be set to standard atmospheric pressure, and is not limited thereto.

[0036] In some embodiments, the heating element 10 is made of an infrared-emitting material. After the heat generated in the heating cavity 11 is transferred to the heating element 10, the heating element 10 can generate infrared radiation that is radiated into the receiving cavity 13. In this way, not only can the aerosol-generating substrate be heated and atomized using plasma generated by an arc, but the aerosol-generating substrate can also be heated and atomized using infrared radiation, further improving the heating effect. Specifically, the heating element 10 can be made of any one or any combination of transparent quartz glass, milky quartz, black silicon quartz, silicon nitride, zirconia, and alumina. These materials can generate infrared radiation after being heated, allowing the heating element 10 itself to perform infrared radiation heating on the aerosol-generating substrate.

[0037] Preferably, the bottom wall of the containing cavity 13 faces the heating cavity 11 and is coated with an infrared emitting coating, thereby achieving stronger infrared radiative heating. Specifically, the material of the infrared emitting coating is one or more of iron manganese copper oxide, CrC, TiCN, diamond-like carbon thin film (DLC), HBQ black silicon, cordierite, transition metal oxide spinel, rare earth oxide, ion-coated perovskite, silicon carbide, zircon, and boron nitride.

[0038] 1 and 2 , in some embodiments, the heating cavity 11 is located at the axial bottom of the accommodating cavity 13, and the discharge end of the second electrode 34 is flush with the center of the discharge ring 321, thereby forming an arc extending radially around the discharge ring 321. The arc eventually rotates due to the magnetic field, forming an arc surface covering the interior of the discharge ring 321, uniformly heating the bottom of the accommodating cavity 13 and uniformly heating and atomizing the aerosol-generating substrate within the accommodating cavity 13. Alternatively, the discharge end of the second electrode 34 descends a predetermined distance away from the center of the discharge ring 321, away from the accommodating cavity 13. The magnetic field forces the arc to form a conical arc surface, which is beneficial for energy concentration and further improves the uniformity of the temperature field within the heating cavity 11. Preferably, the predetermined descending distance of the second electrode 34 is within a range of 0 mm to 1.0 mm.

[0039] Furthermore, the heating element 10 includes a tube 14, a partition plate 15, and a bottom plate 16, the partition plate 15 and the bottom plate 16 being disposed within the tube 14 at intervals along the axial direction of the tube 14, a heating cavity 11 being defined between the partition plate 15, the tube 14, and the bottom plate 16, and a storage cavity 13 being defined between the surface of the partition plate 15 opposite the bottom plate 16 and the tube 14, such that the storage cavity 13 and the heating cavity 11 are formed within the tube 14 along the axial direction of the tube 14, and the aerosol-generating substrate in the storage cavity 13 at the top is heated by heat generated within the heating cavity 11. Preferably, the thickness of the partition plate 15 is within the range of 0.5 mm to 1.0 mm, which not only satisfies the strength requirement but also enables efficient heat conduction.

[0040] Specifically, during the molding process, the partition plate 15 and the tube body 14 may be integrally molded, and the bottom plate 16 may be fixed in the tube body 14 by a melting process after the electrode assembly 30 is assembled. The bottom plate 16 is made of a heat-resistant material, and the material of the bottom plate 16 may be the same as or different from the tube body 14 and the partition plate 15, and is not limited here.

[0041] 3 and 4, in another embodiment, the heating cavity 11 includes a first heating cavity 112 and a second heating cavity 114 that communicate with each other. The first heating cavity 112 surrounds the outer periphery of the receiving cavity 13 in the radial direction, and the second heating cavity 114 is located at the bottom of the receiving cavity 13 in the axial direction. The discharge ring 321 is located in the first heating cavity 112 and is provided so as to surround the outer periphery of the receiving cavity 13. The discharge end of the second electrode 34 is located in the second heating cavity 114 and has a step between it and the center point of the discharge ring 321. In this way, the entire heating cavity 11 is Containment cavity 13 The aerosol-generating substrate is heated and atomized from its outer periphery. An arc passing through the first heating cavity 112 and the second heating cavity 114 is formed between the discharge ring 321 and the discharge end of the second electrode 34. The arc rotates around the axis of the heating cavity 112 due to the magnetic field, forming a uniform temperature field in both the first heating cavity 112 and the second heating cavity 114, uniformly heating the side and bottom surfaces of the aerosol-generating substrate and further improving the atomization sensation.

[0042] In any of the above embodiments, the first electrode 32 further includes an electrical connection 323 connected to the discharge ring 321 and at least a portion of which is located within the heating cavity 11. Within the heating cavity 11, the distance between the electrical connection 323 and the second electrode 34 along the radial direction of the heating cavity 11 is greater than the radial spacing between the discharge ring 321 and the second electrode 34. In this way, the radial spacing between the electrical connection 323 and the second electrode 34 is greater than the radial spacing between the discharge ring 321 and the second electrode 34, ensuring that breakdown discharge occurs between the closely spaced discharge ring 321 and the second electrode 34 and ensuring the reliability of the ionization breakdown position.

[0043] Furthermore, since the electrical connection portion 323 and the second electrode 34 are relatively insulated from each other, it is possible to further prevent ionization breakdown from occurring between the electrical connection portion 323 and the second electrode 34. Specifically, a heat-resistant insulating sleeve is fitted around the electrical connection portion 323, and the heat-resistant insulating sleeve may be a ceramic tube, a quartz tube, or a high-dielectric insulating film layer to effectively insulate the electrical connection portion 323 from the second electrode 34.

[0044] In either of the above embodiments, the power supply providing power to the atomizer 100 is required to ensure that the current it provides always flows from one electrode to the other, i.e., the first electrode 32 and the second electrode 34, without changing the phase of the voltage. Preferably, the current flows from the second electrode 34 to the first electrode 32, in order to reduce ablation losses at the centrally located second electrode 34.

[0045] In yet another embodiment, the heating cavity 11 includes a third heating cavity surrounding the radially outer periphery of the receiving cavity 13. The first electrode 32 and the second electrode 34 include a first discharge ring and a second discharge ring, respectively, both of which are located within the third heating cavity and both of which are spaced apart in the axial direction around the outer periphery of the receiving cavity 13. In this way, the entire heating cavity 11 is Containment cavity 13 The aerosol-generating substrate is heated and atomized from its outer periphery. An arc can be formed between the first and second discharge rings in the first heating cavity 112, and the arc rotates around the circumference of the first and second discharge rings due to the magnetic field, i.e., around the axis of the heating cavity 11, forming a uniform temperature field in the first heating cavity 112, uniformly heating the side surfaces of the aerosol-generating substrate and improving the atomization sensation.

[0046] In one embodiment of the present application, an electronic atomization device is further provided. The electronic atomization device includes the atomizer 100 described above. The atomizer 100 includes a heating element 10, an electrode assembly 30, and a magnetic element 50. The heating element 10 includes a heating cavity 11 and a receiving cavity 13, which is thermally conductive with respect to the heating cavity 11 and receives an aerosol-generating substrate. The electrode assembly 30 includes a first electrode 32 and a second electrode 34, both of which are at least partially disposed within the heating cavity 11. The magnetic element 50 is disposed outside the heating element 10 and is configured to apply a magnetic field to the heating cavity 11. The magnetic field acts to control the formation of a magnetic rotating arc between the first electrode 32 and the second electrode 34 within the heating cavity 11, rotating around the axis of the heating cavity 11.

[0047] At least a portion of each of the first electrode 32 and the second electrode 34 extends into the heating cavity 11. After high voltage is applied to the first electrode 32 and the second electrode 34, a dielectric breakdown occurs between them within the heating cavity 11, forming an arc. At the same time, the magnetic member 50 applies a magnetic field to the heating cavity 11 and an electric field force to the arc, causing the arc to rotate around the axis of the heating cavity 11, thereby forming a magnetic rotating arc. In this way, rather than forming an arc only at a certain location within the heating cavity 11 to generate plasma and raise the temperature, a rotating arc exists throughout the heating cavity 11, forming an arc surface surrounding the heating cavity 11, thereby heating the entire heating cavity 11 and forming a uniform temperature field. This allows the aerosol-generating substrate to be efficiently and uniformly heated and atomized using plasma, further improving the inhalation sensation of the atomized substance.

[0048] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described, but all combinations of these technical features should be considered to fall within the scope of the present specification unless there is a contradiction.

[0049] The above examples are merely some embodiments of the present application, and although the descriptions are specific and detailed, they should not be construed as limiting the scope of the patent of the present application. Those skilled in the art may make various modifications and improvements to the present application without departing from the spirit of the present application, and all of these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the patent of the present application should be determined based on the scope of the accompanying claims. [Explanation of symbols]

[0050] 100 atomizer, 10 heating element, 11 heating cavity, 112 first heating cavity, 114 second heating cavity, 13 containing cavity, 14 tube body, 15 partition plate, 16 bottom plate, 30 electrode assembly, 32 first electrode, 321 discharge ring, 323 electrical connection portion, 34 second electrode, 50 magnetic member

Claims

1. a heating member having a heating cavity formed therein and a storage cavity provided to be thermally conductive with respect to the heating cavity; an electrode assembly including a first electrode and a second electrode, both of which extend at least partially within the heating cavity; a magnetic member disposed outside the heating member and configured to apply a magnetic field to the heating cavity; An atomizer characterized in that the magnetic field is controlled to form a magnetic rotating arc rotating around the axis of the heating cavity between the first electrode and the second electrode within the heating cavity.

2. 2. The atomizer of claim 1, wherein the magnetic member includes a magnetic ring fitted onto the heating member, and an orthogonal projection of the magnetic ring onto an axial cross section of the heating cavity covers an orthogonal projection of the heating cavity itself onto the same axial cross section.

3. 2. The atomizer of claim 1, wherein the first electrode includes a discharge ring positioned within the heating cavity, the discharge ring extending along the outer periphery of the heating cavity, and the discharge end of the second electrode positioned within the heating cavity is located on the central axis of the discharge ring.

4. The atomizer according to claim 3, wherein the discharge end of the second electrode is configured to have a columnar or annular shape.

5. 4. The atomizer according to claim 3, wherein the heating cavity is located at the axial bottom of the accommodating cavity, and the discharge end of the second electrode is flush with the center point of the discharge ring, or the discharge end of the second electrode is recessed a predetermined distance away from the accommodating cavity relative to the center point of the discharge ring.

6. 6. The atomizer according to claim 5, wherein the heating member includes a tube, a partition plate, and a bottom plate, the partition plate and the bottom plate being arranged within the tube at intervals along the axial direction of the tube, the heating cavity being defined between the partition plate, the tube, and the bottom plate, and the storage cavity being defined between the tube and a surface of the partition plate opposite the bottom plate.

7. 4. The atomizer according to claim 3, wherein the heating cavity includes a first heating cavity and a second heating cavity that are in communication with each other, the first heating cavity surrounding the radially outer periphery of the accommodating cavity, and the second heating cavity being located at the axial bottom of the accommodating cavity.

8. 8. The atomizer of claim 7, wherein the discharge ring is located within the first heating cavity and surrounds the outer periphery of the accommodating cavity, and the discharge end of the second electrode is located within the second heating cavity and has a step between it and the center point of the discharge ring.

9. the first electrode further includes an electrical connection connected to the discharge ring and at least a portion of which is located within the heating cavity; An atomizer according to any one of claims 3 to 8, characterized in that, within the heating cavity, the distance between the electrical connection portion and the second electrode along the radial direction of the heating cavity is greater than the radial spacing between the discharge ring and the second electrode.

10. 10. The atomizer of claim 9, wherein the electrical connection and the second electrode are relatively insulated from each other.

11. 2. The atomizer according to claim 1, wherein the heating cavity includes a third heating cavity surrounding the outer periphery of the accommodating cavity in the radial direction.

12. 12. The atomizer of claim 11, wherein the first electrode includes a first discharge ring, the second electrode includes a second discharge ring, the first discharge ring and the second discharge ring are both located in the third heating cavity, and both are spaced apart along the axial direction around the outer periphery of the accommodating cavity.

13. 9. The atomizer according to claim 1, wherein the heating element is made of an infrared emitting material.

14. The atomizer according to any one of claims 1 to 8, characterized in that the bottom wall of the containing cavity faces the heating cavity and is coated with an infrared emitting coating.

15. An electronic atomization device comprising the atomizer according to any one of claims 1 to 8, 11 and 12.

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