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 filed with the State Intellectual Property Office of the People's Republic of China on February 9, 2022, bearing application number 2022202663729 and entitled "Atomizer and Electronic Atomization Device," the entire contents of which are incorporated herein by reference.

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

[0003] Aerosol is a colloidal dispersion system formed by dispersing and suspending fine particles of solid or liquid in a gas medium, and since aerosols are inhaled into the human body through the respiratory system, they provide a new alternative inhalation method for users. For example, atomizers that generate aerosols by baking and heating aerosol-generating substrates such as herbs or pastes are applied in different fields and can provide inhalable aerosols to users by replacing conventional product forms and inhalation methods. Electronic atomizers usually heat the aerosol-generating substrates by resistance or electromagnetic induction. Summary of the Invention [Problem to be solved by the invention]

[0004] In the prior art, whether the resistance type or the electromagnetic induction type is used, the preheating waiting time required to heat the aerosol-generating substrate is long, which is inconvenient for users. In addition, in the resistance type heating, an external power source is used to energize a resistance element to generate heat, and the heated resistance element transfers heat to the aerosol-generating substrate by thermal conduction. This requires time for thermal conduction, and hysteresis exists, so that the aerosol-generating substrate close to the resistance element is always overheated or burned, which may adversely affect the uniformity of the sucking sensation. In addition, when the resistance heating element comes into contact with the aerosol-generating substrate and heats it, the metal material in the resistance heating element may enter the aerosol formed by atomizing the aerosol-generating substrate, which may affect the sucking sensation of the atomization.

[0005] Based on this, there is a need to provide an atomizer and an electronic atomizer that address the problem of poor inhalation sensation caused by the atomization of the conventional electronic atomizer. [Means for solving the problem]

[0006] A first aspect of the present application provides an atomizer including a heating member having a heating cavity formed therein and a accommodating cavity arranged to be thermally conductive to the heating cavity, an electrode assembly including a first electrode and a second electrode, both of which at least partially extend into the heating cavity, and a magnetic member arranged outside the heating member and configured to apply a magnetic field to the heating cavity, wherein the atomizer is controlled so that 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 by the action of the magnetic field.

[0007] In the atomizer, the first electrode and the second electrode are at least partially inserted into the heating cavity, and after the first electrode and the second electrode are supplied with high voltage, an arc can be formed between them by dielectric breakdown in the heating cavity. At the same time, the magnetic member applies a magnetic field to the heating cavity and applies an electric field force to the arc to rotate the arc around the axis of the heating cavity, and further forms a magnetic rotating arc. In this way, instead of forming an arc only at a certain position in the heating cavity to generate plasma and raise the temperature, a rotating arc exists throughout the heating cavity, and an arc surface surrounding the heating cavity is formed, so that the entire heating cavity can be heated and a uniform temperature field can be formed, and the aerosol generating substrate can be efficiently and uniformly heated and atomized using plasma, and the feeling of inhalation of the atomization can be improved.

[0008] In a first aspect of the present application, the magnetic member includes a magnetic ring fitted around 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 an outer circumferential direction of the heating cavity, and a discharge end of the second electrode positioned within the heating cavity is located on the central axis of the discharge ring.

[0010] In a 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 descends a predetermined distance 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 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 accommodating 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 radial outer periphery of the accommodating cavity, and the second heating cavity is located at the bottom of the axial direction of the accommodating cavity. The discharge ring is located in the first heating cavity and is provided so as to surround 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 the discharge end and a 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 radially outer periphery of the containing cavity, 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 in the axial direction around the outer periphery of the containing 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, a 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 description of the drawings]

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

[0021] In order to make the above objects, features and advantages of the present application clearer and easier to understand, the 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 described to provide a complete 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 improvements 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 the present application, the orientations or positional relationships indicated by terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like are orientations or positional relationships shown in the drawings, and are used only to facilitate or simplify the description of the present application, and are not intended to represent or imply that the devices or parts shown necessarily have a specific orientation or a specific orientation structure and operation, and therefore should not be construed as limiting the present 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 imply a number of the technical features depicted. Thus, a feature qualified as "first" or "second" may explicitly or implicitly include at least one of the feature. In the present description, unless otherwise clearly and specifically limited, "plurality" means at least two, e.g., two, three, etc.

[0024] In this application, unless otherwise clearly specified and limited, the terms "attached", "coupled", "connected" and the like should be understood in a broad sense, for example, may be 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 meaning of the above terms in this application according to the specific situation.

[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 feature and the second feature, or indirect contact between the first feature and the second feature via an intermediate medium. Furthermore, a first feature being "above," "above," and "on the upper surface" of a second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates 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 includes the first feature being directly below or diagonally below the second feature, or simply indicates 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 referred to as being "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," "up," "down," "left," "right," and similar terms used herein are for illustrative purposes only and do not represent the only embodiments.

[0027] 1-2, an atomizer 100 according to an embodiment of the present application is shown. The atomizer 100 heats and atomizes an aerosol-generating substrate by plasma generated by a magnetic rotating arc. On the one hand, it utilizes the high energy density characteristic of plasma heating to realize instantaneous and rapid heating and atomization, effectively shortening the preheating time, preventing scorching caused by too long a preheating time, and improving the inhalation feeling of the atomization. On the other hand, the plasma generated by the magnetic rotating arc is more uniform and can form a more uniform temperature field, which uniformly heats and atomizes the aerosol-generating substrate, further improving the inhalation feeling of the atomization.

[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 that 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 inserted into the heating cavity 11. The magnetic member 50 is provided outside the heating member 10 and configured to apply a magnetic field to the heating cavity 11. The magnetic field controls the first electrode 32 and the second electrode 34 to form a magnetic rotating arc that rotates around the axis of the heating cavity 11 in the heating cavity 11.

[0029] At least a portion of each of the first electrode 32 and the second electrode 34 enters the heating cavity 11, and after high voltage is supplied to the first electrode 32 and the second electrode 34, an arc can be formed between them by dielectric breakdown in the heating cavity 11. At the same time, the magnetic member 50 applies a magnetic field to the heating cavity 11 and applies an electric field force to the arc to rotate the arc around the axis of the heating cavity 11, and further forms a magnetic rotating arc. In this way, instead of forming an arc only at a certain position in the heating cavity 11 to generate plasma and raise the temperature, a rotating arc exists throughout the heating cavity 11, and an arc surface surrounding the heating cavity 11 is formed, so that the entire heating cavity 11 can be heated and a uniform temperature field can be formed, and the aerosol generating substrate can be efficiently and uniformly heated and atomized using plasma, and the feeling of inhalation of the atomization can be improved.

[0030] In some embodiments, the magnetic member 50 includes a magnetic ring fitted around the heating member 10, and 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 of the magnetic ring itself. 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 in the heating cavity 11, so that the arc rotates around the axis of the heating cavity 11 due to the electric field force. Specifically, the magnetic ring is arranged coaxially with the heating cavity 11, so that a magnetic rotating arc rotating around the axis of the heating cavity 11 is formed in the heating cavity 11, so that the temperature field in the heating cavity 11 is uniform, and further the aerosol-generating substrate in the containing cavity 13 is uniformly heated. The heating cavity 11 is also arranged coaxially with the containing cavity 13, so that the temperature field in the heating cavity 11 acts uniformly on the aerosol-generating substrate in the containing 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 in the heating cavity 11.

[0032] In some embodiments, the first electrode 32 includes a discharge ring 321 located in 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 in the heating cavity 11 is located on the central axis of the discharge ring 321. In this way, the discharge ring 321 is provided in the heating cavity 11, 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, and then the discharge end of the second electrode 34 is provided on the central axis of the discharge ring 321, and after an arc is formed between the discharge end of the second electrode 34 and the discharge ring 321, the arc rotates along the circumferential direction of the discharge ring 321 by the magnetic field to form a magnetic rotating arc, which further heats and atomizes the aerosol-generating substrate uniformly.

[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 occur. 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 in 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. Also, 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, and after an arc is generated by causing a dielectric breakdown between the first electrode 32 and the second electrode 34 in the heating cavity 11, the inert gas filled in the heating cavity 11 is ionized to form plasma to generate heat, and the generated heat is efficiently transferred to the containing cavity 13 via the inert gas, thereby improving the heat transfer efficiency. For example, the heating cavity 11 is 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, and is not limited here.

[0035] In some embodiments, the air pressure inside the heating cavity 11 is lower than the standard atmospheric pressure, and by maintaining the pressure inside the heating cavity 11 at a low level, excessive pressure is not applied to the cavity wall of the heating cavity 11 (i.e., the heating member 10), and the thickness and strength of the heating member 10 can be reduced, thereby further improving the 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 the standard atmospheric pressure, and is not limited here.

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

[0037] Preferably, the bottom wall of the containing cavity 13 faces the heating cavity 11, and the bottom wall is coated with an infrared radiation coating, so as to realize stronger infrared radiation heating. Specifically, the material of the infrared radiation 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 co-doped perovskite, silicon carbide, zircon, and boron nitride.

[0038] 1-2, in some embodiments, the heating cavity 11 is located at the bottom of the axial direction of the receiving cavity 13, and the discharge end of the second electrode 34 is flush with the center point of the discharge ring 321, thereby forming an arc extending along the radial direction of the discharge ring 321, and finally, the arc rotates by the magnetic field to form an arc surface covering the inside of the discharge ring 321, uniformly heating the bottom of the receiving cavity 13 and uniformly heating and atomizing the aerosol-generating substrate in the receiving cavity 13. Alternatively, the discharge end of the second electrode 34 descends a predetermined distance in a direction away from the receiving cavity 13 with respect to the center point of the discharge ring 321, and thus the arc forms a conical arc surface by the magnetic field force, which is favorable for energy concentration and further improves the uniformity of the temperature field in the heating cavity 11. Preferably, the predetermined distance that the second electrode 34 descends is within a range of 0 mm to 1.0 mm.

[0039] Furthermore, the heating member 10 includes a tube 14, a partition plate 15, and a bottom plate 16, the partition plate 15 and the bottom plate 16 are provided in the tube 14 at intervals along the axial direction of the tube 14, a heating cavity 11 is defined between the partition plate 15, the tube 14, and the bottom plate 16, and a storage cavity 13 is defined between the surface of the partition plate 15 opposite the bottom plate 16 and the tube 14, thus forming the storage cavity 13 and the heating cavity 11 arranged along the axial direction of the tube 14 in the tube 14, and the aerosol generating substrate in the storage cavity 13 at the top by the heat generated in 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 allows efficient heat conduction.

[0040] Specifically, in 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. In addition, 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 those of 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 accommodating cavity 13 in the radial direction, and the second heating cavity 114 is located at the bottom of the accommodating 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 accommodating cavity 13, and the discharge end of the second electrode 34 is located in the second heating cavity 114 and has a step with the center point of the discharge ring 321. In this way, the entire heating cavity 11 surrounds the outer periphery of the heating cavity 11, and the aerosol-generating substrate is heated and atomized from the outer periphery. In addition, an arc passing through the first heating cavity 112 and the second heating cavity 114 can be formed between the discharge ring 321 and the discharge end of the second electrode 34, and the arc rotates around the axis of the heating cavity 11 by the magnetic field force, forming a uniform temperature field in both the first heating cavity 112 and the second heating cavity 114, uniformly heating the sides and bottom of the aerosol-generating substrate, and further improving the feeling of inhalation of atomization.

[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, a distance along the radial direction of the heating cavity 11 between the electrical connection 323 and the second electrode 34 is greater than a radial distance between the discharge ring 321 and the second electrode 34, and thus the radial distance between the electrical connection 323 and the second electrode 34 is greater than a radial distance between the discharge ring 321 and the second electrode 34, ensuring that a breakdown discharge occurs between the discharge ring 321 and the second electrode 34, which are closely spaced apart, 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 any of the above embodiments, the requirement for the power supply providing power to the atomizer 100 is that the current it provides always flows from one of the first electrode 32 and the second electrode 34 to the other, without any change in voltage phase. Preferably, the current direction is from the second electrode 34 to the first electrode 32 in order to reduce ablation losses of 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, which are both located in the third heating cavity and both surround the outer periphery of the receiving cavity 13 and are spaced apart along the axial direction. In this way, the entire heating cavity 11 surrounds the outer periphery of the heating cavity 11, and the aerosol-generating substrate is heated and atomized from its outer periphery. In addition, an arc can be formed between the first discharge ring and the second discharge ring in the first heating cavity 112, and the arc rotates along the circumferential direction of the first discharge ring and the second discharge ring due to the magnetic field force, i.e., rotates around the axis of the heating cavity 11, so that a uniform temperature field can be formed in the first heating cavity 112, which uniformly heats the side surface of the aerosol-generating substrate and improves the feeling of inhalation of the atomization.

[0046] In one embodiment of the present application, an electronic atomization device is further provided. The electronic atomization device includes the above-mentioned atomizer 100. 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 that is thermally conductive with 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 inserted into the heating cavity 11. The magnetic member 50 is 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, which rotates 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 enters the heating cavity 11, and after high voltage is supplied to the first electrode 32 and the second electrode 34, an arc can be formed between them by dielectric breakdown in the heating cavity 11. At the same time, the magnetic member 50 applies a magnetic field to the heating cavity 11 and applies an electric field force to the arc to rotate the arc around the axis of the heating cavity 11, and further forms a magnetic rotating arc. In this way, instead of forming an arc only at a certain position in the heating cavity 11 to generate plasma and raise the temperature, a rotating arc exists throughout the heating cavity 11, and an arc surface surrounding the heating cavity 11 is formed, so that the entire heating cavity 11 can be heated and a uniform temperature field can be formed, and the aerosol generating substrate can be efficiently and uniformly heated and atomized using plasma, and the feeling of inhalation of the atomization can be improved.

[0048] The technical features of the above embodiments can be combined in any combination. For the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but all combinations of these technical features should be considered to be 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 the descriptions are specific and detailed, but should not be construed as limiting the scope of the patent of the present application. It should be noted that those skilled in the art can 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 belong to the scope of protection of the present application. Therefore, the scope of protection of the patent of the present application should be based on the scope of the attached claims. [Explanation of symbols]

[0050] 100 atomizer, 10 heating element, 11 heating cavity, 112 first heating cavity, 114 second heating cavity, 13 accommodating 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 capable of thermally conducting with respect to the heating cavity; an electrode assembly including a first electrode and a second electrode, both of which extend at least partially into 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 around 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 located within the heating cavity, the discharge ring extending along an outer circumferential direction of the heating cavity, and a discharge end of the second electrode located within the heating cavity is located on a central axis of the discharge ring.

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

5. 4. The atomizer of 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. The atomizer of claim 5, characterized in that the heating member includes a tube, a partition plate, and a bottom plate, the partition plate and the bottom plate are arranged within the tube at intervals along the axial direction of the tube, the heating cavity is defined between the partition plate, the tube, and the bottom plate, and the accommodating cavity is defined between the surface of the partition plate opposite the bottom plate and the tube.

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 surrounds the radial outer periphery of the accommodating cavity, and the second heating cavity is 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 is arranged to surround 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 the discharge end and a 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 as described in any one of claims 3 to 8, characterized in that within the heating cavity, the distance along the radial direction of the heating cavity between the electrical connection portion and the second electrode is greater than the radial spacing between the discharge ring and the second electrode.

10. 10. The atomizer of claim 9, wherein there is relative insulation between the electrical connection and the second electrode.

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

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

13. The atomizer according to any one of claims 1 to 8, characterized in that the heating member 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 14.

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