Heating module and aerosol generating device

Abstract

A heating module (1100) and an aerosol generating device (1000). The heating module (1100) comprises a heating kettle body (10), first electrodes (110), a second electrode (120), and a magnetic member (50). An accommodating cavity (101) for accommodating an aerosol-forming substrate (20) is formed in the heating kettle body (10). The first electrodes (110) and the second electrode (120) are arranged spaced apart from each other outside the accommodating cavity (101), and an electric arc is formed between the first electrodes (110) and the second electrode (120) when a direct current passes through the first electrodes (110) and the second electrode (120), so as to heat the heating kettle body (10). The magnetic member (50) is spaced apart from the heating kettle body (10), and the magnetic member (50) is used for enabling the electric arc to rotate on a kettle bottom (11) of the heating kettle body (10).

Description

Heating module and aerosol generating device

[0001] Priority information

[0002] This application claims priority and benefits of patent application No. 202410088280.X filed with the State Intellectual Property Office of China on January 22, 2024, and the entire text of which is incorporated herein by reference. Technical Field

[0003] The present application relates to the technical field of aerosol generating devices, and in particular to a heating module and an aerosol generating device. Background Art

[0004] An aerosol-generating device can be used to heat an aerosol-forming substrate to form an aerosol through heating without combustion. In related technologies, an aerosol-generating device includes a heating pot and an electrode pair. The aerosol-forming substrate can be accommodated in the heating pot. Discharge between the electrode pair forms an arc. The arc is generated at a relatively fixed position relative to the heating pot. Improving heating uniformity and heating efficiency are key technical issues. Summary of the Invention

[0005] The present application provides a heating module and an aerosol generating device.

[0006] The heating module of the embodiment of the present application includes a heating pot, a first electrode, a second electrode, and a magnetic member.

[0007] The heating pot body is formed with a receiving cavity for accommodating an aerosol-forming substrate. A first electrode and a second electrode are spaced apart outside the receiving cavity. When a direct current is applied to the first and second electrodes, an arc is formed between the first and second electrodes, thereby heating the heating pot body. A magnetic member is spaced apart from the heating pot body and is configured to cause the arc to rotate within the bottom of the heating pot body.

[0008] In the heating module of the embodiment of the present application, a magnetic part is provided to make the electric arc rotate on the bottom of the pot, so that each position of the bottom surface of the pot can fully exchange heat with the electric arc during the heating process, thereby making the heating pot body temperature rise and temperature distribution more uniform, and the heating temperature of the aerosol forming matrix at each position of the bottom of the pot is relatively uniform and well synchronized, which is conducive to shortening the heating atomization time and improving the aerosol generation efficiency.

[0009] In some embodiments, the first electrode is at least partially fixed to the outer surface of the heating pot. In other embodiments, the first electrode and the heating pot are separate structures, and the first electrode is close to or in contact with the outer peripheral surface of the heating pot.

[0010] In this way, the first electrode is fixed to the surface of the heating pot, forming an integral part of the heating pot and allowing it to be removed and replaced with the heating pot. This reduces the restrictions on replacing the heating pot 10, avoids the need for arbitrarily replacing non-standard heating pots, and ensures a good puffing experience and safe use. The first electrode is provided separately from the heating pot, and the heating pot and first electrode can be removed separately, facilitating manufacturing.

[0011] In some embodiments, the first electrode is close to or abuts against a side wall of the heating pot, and the second electrode is close to or abuts against the center of the bottom of the heating pot.

[0012] In this way, the arc generated between the first and second electrodes closely adheres to the heating pot body, achieving high heat conversion efficiency. At the same time, the second electrode is placed close to the center of the pot bottom, allowing the arc to rotate around the center of the pot bottom, which is conducive to uniform heating of the pot bottom by the arc.

[0013] In some embodiments, along the depth direction of the accommodating cavity, the magnetic member is located on a side of the discharge end of the first electrode away from the second electrode, or the magnetic member and the discharge end of the second electrode are located at the same height. In some embodiments, along the depth direction of the accommodating cavity, the magnetic member is located on a side of the second electrode away from the first electrode, or the magnetic member and the discharge end of the first electrode are located at the same height.

[0014] In this way, the distribution position of the magnetic element is more diverse, which can adapt to the internal structure of various heating modules. The magnetic element is arranged close to the first electrode or the second electrode, which is conducive to enhancing the magnetic field strength driving the arc rotation and improving the magnetic flux utilization rate of the magnetic element.

[0015] In some embodiments, the heating module includes an insulating insulator, which forms an insulating space. The bottom of the heating pot is accommodated in the insulating space. The discharge ends of the first electrode and the second electrode are both located in the insulating space, and the magnetic part is located outside the insulating space.

[0016] This allows the arc to form within the insulated space, strengthening insulation protection at the discharge end and improving the thermal insulation of the aerosol generating device. Placing the magnetic component outside the insulating body helps reduce its temperature rise and improves the heat resistance and reliability of the magnetic field.

[0017] In some embodiments, the magnetic member is disposed around the central axis of the heating pot.

[0018] In this way, by arranging the magnetic member around the central axis of the heating pot body, space is saved to a certain extent, and the magnetic field formed by the magnetic member has a larger magnetic field strength component perpendicular to the arc, thereby improving the utilization rate of magnetic energy.

[0019] In some embodiments, the first electrode and / or the second electrode includes a discharge end and a conductive portion connected to the discharge end, and the conductive portion is disposed through the insulating body.

[0020] In this way, the insulation reliability of the heating module is enhanced by the conductive part passing through the insulating and heat-insulating body.

[0021] In some embodiments, the heating pot body has an opening opposite to the bottom of the heating pot body, and the conductive part includes a first conductive segment, a second conductive segment and a third conductive segment connected in sequence, the first conductive segment extends from the discharge end toward the opening, the first conductive segment is located in the insulation space, the second conductive segment is passed through the insulating insulator, and the third conductive segment is located outside the insulation space and extends from the second conductive segment in a direction away from the opening.

[0022] In this way, the conductive part extends a certain distance toward the opening and then passes through the insulating insulator and extends in the opposite direction to the initial direction. An angle is formed between the first conductive segment, the second conductive segment and the third conductive segment, which can reduce the volume of the heating module and allow the high-temperature heat of the first electrode and the second electrode to be fully retained at the bottom of the heating pot body, reducing outward heat conduction and improving heat utilization.

[0023] In some embodiments, the third conductive segment is detachably connected to the second conductive segment.

[0024] In this way, the third conductive segment and the second conductive segment are detachably connected, which facilitates the assembly of the heating module and the aerosol generating device.

[0025] In some embodiments, the heating pot body has an opening opposite to the bottom of the heating pot body, the conductive part includes a first conductive segment and a second conductive segment, the first conductive segment connects the second conductive segment and the discharge end, the first conductive segment is passed through the insulating insulator, and the second conductive segment is located outside the insulating space and extends from the second conductive segment in a direction away from the opening.

[0026] By bending the conductive portion at the insulating body, the volume of the heating module can be reduced while maintaining insulation strength. Furthermore, the high-temperature heat from the first and second electrodes can be fully retained at the bottom of the heating pot, reducing outward heat conduction and improving heat utilization.

[0027] In some embodiments, along the tangential direction of the heating pot, the cross-sectional area of ​​the first conductive segment is smaller than or equal to the cross-sectional area of ​​the discharge end.

[0028] In this way, by setting the cross-sectional area of ​​the first conductive segment along the tangent direction of the heating pot body to be smaller than the discharge end, the heat of the arc transferred outward along the conductive portion is reduced.

[0029] In some embodiments, the discharge end is annular, the number of the first conductive segments is two, and the two first conductive segments are spaced apart and distributed along the circumference of the discharge end.

[0030] In this way, the two first conductive segments are spaced apart along the circumference of the discharge end, which facilitates detection of resistance changes at the discharge end of the first electrode.

[0031] In some embodiments, the magnetic member is disposed close to the heating pot relative to the third conductive segment along the radial direction of the heating pot.

[0032] In this way, the internal structure of the heating module is more compact, which is conducive to further reducing the volume of the heating module.

[0033] The aerosol generating device according to an embodiment of the present application includes the heating module described in any one of the above embodiments.

[0034] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0036] FIG1 is a schematic structural diagram of an aerosol generating device according to an embodiment of the present application;

[0037] FIG2 is a schematic structural diagram of an aerosol generating device according to another embodiment of the present application;

[0038] FIG3 is a schematic structural diagram of a heating module according to an embodiment of the present application;

[0039] FIG4 is a schematic cross-sectional view of the aerosol generating device of FIG2 along the AA direction;

[0040] FIG5 is a partial cross-sectional schematic diagram of an aerosol generating device according to another embodiment of the present application;

[0041] FIG6 is a schematic cross-sectional view of the heating module of FIG3 along the BB direction;

[0042] FIG7 is a cross-sectional schematic diagram of a heating module according to another embodiment of the present application;

[0043] FIG8 is a partial cross-sectional schematic diagram of a heating module according to another embodiment of the present application;

[0044] FIG9 is a partial cross-sectional schematic diagram of a heating module according to another embodiment of the present application;

[0045] FIG10 is a schematic structural diagram of the cross-sectional structure of the aerosol generating device of FIG1 along the DD direction.

[0046] Explanation of the accompanying drawings: Heating pot body 10, pot bottom 11, side wall 12, accommodating cavity 101, opening 102, outer surface 103, pot bottom surface 1031, outer peripheral surface 1032, first electrode 110, second electrode 120, conductive part 130, first conductive segment 131, second conductive segment 132, third conductive segment 133, discharge end 140, aerosol forming matrix 20, sealing part 30, infrared radiation film 40, magnetic part 50, insulating part 60; aerosol generating device 1000, shell 200, nozzle assembly 300, insulating and heat-insulating body 400, heat-insulating space 401, accommodating groove 402, heating module 1100. DETAILED DESCRIPTION

[0047] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and should not be understood as limiting the present application.

[0048] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present application, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0049] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections, electrical connections, or mutual communication; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to internal communication between two components or the interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0050] In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0051] The disclosure below provides many different embodiments or examples for realizing different structures of the present application. In order to simplify the disclosure of the present application, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present application. In addition, the present application may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplicity and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present application provides examples of various specific processes and materials, but those of ordinary skill in the art will appreciate the application of other processes and / or the use of other materials.

[0052] Referring to FIG. 1 , the present application provides a heating module 1100 and an aerosol generating device 1000. In the present application, the aerosol generating device 1000 refers to a device that can generate aerosols using an aerosol-forming substrate 20. The aerosol-forming substrate 20 is a flower, stem, or leaf product of a plant that has been processed to generate an aerosol upon heating. An aerosol is a colloid formed by solid or liquid particles distributed in a gaseous medium. A user can inhale the aerosol into the oral cavity, nasal cavity, or lungs through the mouth or nose. The aerosol inhaled into the user's respiratory system can be used for a variety of purposes, including food, medicine, health care, and entertainment.

[0053] Referring to Figures 2-4 , a heating module 1100 according to an embodiment of the present application includes a heating pot 10, a first electrode 110, a second electrode 120, and a magnetic member 50. The heating pot 10 is formed with a housing 101 for accommodating the aerosol-forming substrate 20. The first electrode 110 and the second electrode 120 are spaced apart outside the housing 101. When direct current is applied to the first electrode 110 and the second electrode 120, an arc is formed between the first electrode 110 and the second electrode 120 to heat the heating pot 10. The magnetic member 50 is spaced apart from the heating pot 10 and is used to cause the arc to rotate around the center of the bottom 11 of the heating pot 10. It is understood that if the pot bottom 11 is of a regular shape, the arc is preferably rotated around the center of the pot bottom 11 of the heating pot body 10. However, the arc is not limited to rotating around the center and can also deviate a certain distance. In particular, if the pot bottom 11 is of an irregular shape, the arc can rotate around the pot bottom. Of course, the larger the area of ​​the pot bottom 11 covered by the arc, the more uniform the heating.

[0054] In the heating module 1100 of the embodiment of the present application, the magnetic part 50 is provided to make the electric arc rotate relative to the center of the pot bottom 11, so that each position of the pot bottom surface 1031 can fully exchange heat with the electric arc during the heating process, thereby making the heating pot body 10 temperature rise and temperature distribution more uniform, and the heating temperature of the aerosol forming matrix 20 at each position of the pot bottom 11 is relatively uniform and well synchronized, which is conducive to shortening the heating atomization time and improving the aerosol generation efficiency.

[0055] Specifically, the aerosol-forming substrate 20 in the accommodating cavity 101 may be in a fully solid or semi-solid state. For example, the aerosol-forming substrate 20 may be a paste or gel. Highly humid pastes and gels may be applied to the inner wall of the pot bottom 11 or filled into the pot bottom 11. In another example, a fully solid aerosol-forming substrate 20 may be in the form of relatively finely divided blocks or sheets. The aerosol-forming substrate 20 as a whole may have a certain degree of fluidity and may be deposited on the bottom of the heating pot body 10.

[0056] Referring to Figure 4 , the bottom of the heating pot base 11 can be closed and form the pot base 11. The end of the heating pot body 10 opposite the pot base 11 can form an opening 102, with the end forming the opening 102 being the top of the heating pot body 10. In this application, the direction from the opening 102 of the heating pot body 10 toward the pot base 11 is defined as the top-to-bottom direction, and the direction from the center of the opening 102 toward the geometric center of the pot base 11 is defined as the axial direction of the heating pot body 10, i.e., the vertical direction of the heating pot body 10 and the aerosol generating device 1000. The transverse direction of the heating pot body 10 and the aerosol generating device 1000 is perpendicular to the aforementioned vertical direction. The cross-sectional shapes of the inner and outer contours of the heating pot body 10 include, but are not limited to, circular, elliptical, regular quadrilateral, rectangular, polygonal, and other polygons with rounded corners or curved edges. For example, this application assumes that the cross-sectional shapes of the inner and outer contours of the heating pot body 10 are circular, and the circumferential direction of the outer contour cross-sectional shape is the circumferential direction of the heating pot body 10.

[0057] It should be noted that arc discharge is a gas discharge phenomenon. It occurs when a strong electric field causes the gas between a pair of electrodes to be ionized and form a plasma, also known as an arc. The generation of an arc is accompanied by a dazzling glow and a large amount of heat. The first electrode 110 and the second electrode 120 are spaced apart. Applying high voltage to the first electrode 110, 120 ionizes the gas in the space between the first electrode 110, 120 to generate an arc. The heat from the arc rapidly heats the heating pot 10 to a relatively high temperature, heating the aerosol-forming matrix 20 in the accommodating chamber 101 and causing it to atomize to form an aerosol. It is understood that during the discharge process, the temperature of the first electrode 110 and the second electrode 120 also rises, providing a certain amount of heat for the atomization of the aerosol-forming matrix 20.

[0058] The heating pot body 10 can be made of a material with good heat resistance, such as quartz, ceramic, or heat-resistant glass. The first electrode 110 and the second electrode 120 can be made of a heat-resistant material with good electrical conductivity, and can be a conductor or a semiconductor. For example, the first electrode 110 and the second electrode 120 can be made of one or more of nickel-based alloys, iron-based alloys, copper-based alloys, zirconium, hafnium, tungsten, graphite, and carbon fiber. The first electrode 110 and the second electrode 120, which discharge and generate an arc when power is applied, can be made of the same or different materials.

[0059] The magnetic member 50 is spaced apart from the heating pot body 10, and can be disposed outside the heating pot body 10, spaced a certain distance from the side wall 12 or the pot bottom 11. The magnetic field formed by the magnetic member 50 drives the arc to rotate, and the magnetic field formed by the magnetic member 50 provides a sufficiently large magnetic field intensity component perpendicular to the arc.

[0060] The magnetic member 50 can be a permanent magnet, which can be made of a heat-resistant magnetic material such as a samarium-cobalt magnet. The magnetic member 50 is a permanent magnet with a thickness of 2 mm or greater. In some embodiments, the magnetic member 50 can be made of a material with a relatively high magnetic induction sensitivity. The heating module 1100 can be provided with an external electric field, which can be used to stimulate the magnetic member 50 to generate a magnetic field through electromagnetic induction.

[0061] Please refer to Figures 4 to 6. In some embodiments, the heating pot body 10 includes a side wall 12 and a pot bottom 11 connected to the side wall 12. The pot bottom 11 and the side wall 12 define a receiving cavity 101.

[0062] Specifically, the sidewall 12 can surround the central axis of the heating pot body 10 and extend along the axial direction of the heating pot body 10 to connect the pot bottom 11 and the opening 102. The thickness of the pot bottom 11 and the sidewall 12 can be equal, or the thickness range of the pot bottom 11 and the sidewall 12 can be the same. The thickness of the pot bottom 11 and the sidewall 12 can also be different.

[0063] The cross-sectional shape of the outer contour of the heating pot body 10 can be circular or nearly circular, and the outer diameter of the heating pot body 10 ranges from 5 mm to 20 mm. The diameter of the outer peripheral surface 1032 of the side wall 12 can be regarded as the outer diameter of the heating pot body 10. The opening 102 can be defined by the inner circumference of the side wall 12 at the top.

[0064] Please refer to FIG. 4 and FIG. 5 . In some embodiments, the bottom 11 of the heating pot body 10 is a flat bottom structure or a round bottom structure.

[0065] Specifically, the outer surface 103 of the heating pot body 10 includes a pot bottom surface 1031 and an outer peripheral surface 1032 connected to the pot bottom surface 1031. The pot bottom surface 1031 faces away from the accommodating cavity 101 and toward the insulating body 400. The outer peripheral surface 1032, where it connects to the outer contour edge of the pot bottom surface 1031, can extend upward from the pot bottom 11 along the axial direction of the heating pot body 10 to the opening 102.

[0066] As shown in Figure 4, the pot bottom 11 has a rounded bottom structure, and can protrude downward along the axial direction of the heating pot body 10. The inner and outer contours of the center of the pot bottom 11 are both arc-shaped, and the connection between the pot bottom 11 and the side wall 12 is connected by an arc. The pot bottom surface 1031 can be an entire arc surface, or the pot bottom surface 1031 can be flat at the center or edges, with an arc transition. In this embodiment, the radius of curvature of the pot bottom surface 1031 is not limited.

[0067] As shown in Figure 5, the pot bottom 11 has a flat bottom structure. The pot bottom surface 1031 can be entirely flat, or it can include a flat surface and a rounded transition surface at the outer edge. The connection between the pot bottom 11 and the side wall 12 can have a certain radius to form a transition surface. Either the pot bottom surface 1031 or the inner wall of the accommodating cavity 101 can be flat, while the other can have a certain curvature.

[0068] Compared with the sharp shape of the pot bottom 11 , the pot bottom 11 has a flat or round bottom structure, which has better uniformity in heat transfer and a relatively large contact area with the arc.

[0069] In some embodiments, the first electrode 110 is at least partially fixed to the outer surface 103 of the heating pot 10 . In other embodiments, the first electrode 110 and the heating pot 10 are separate structures, and the first electrode 110 is close to or in contact with the outer surface 103 of the heating pot 10 .

[0070] In this way, the first electrode 110 is partially fixed to the surface of the heating pot 10. After a period of use, the heating pot 10 and the first electrode 110 on its surface can be removed and replaced together. This reduces the restrictions on replacing the heating pot 10, avoids the random replacement of non-standard heating pots, and ensures the smoking taste and safety of use. The first electrode is provided separately from the heating pot, and the heating pot and the first electrode can be removed and assembled separately, facilitating production and manufacturing.

[0071] Specifically, when the first electrode 110 is partially fixed to the outer surface 103, the heating pot 10 and the first electrode 110 form an integral structure. The first electrode 110 can be in the form of a film and can be formed on the outer surface 103 of the heating pot 10 by a process such as screen printing. When the heating pot 10 and the first electrode 110 are separate structures, the discharge end 140 of the first electrode 110 can abut or fit the outer surface 103, or a certain gap can be formed between the discharge end 140 and the outer surface 103. The conductive portion 130 of the first electrode 110 is disposed near the outer surface 103 and can partially abut the outer surface 103.

[0072] Please refer to Figures 4 to 6. In some embodiments, the first electrode 110 is close to or abuts the side wall 12 of the heating pot 10, and the second electrode 120 is close to or abuts the center of the bottom 11 of the heating pot 10.

[0073] In this way, the arc generated between the first electrode 110 and the second electrode 120 is closely attached to the heating pot body 10, and the heat conversion efficiency is high. At the same time, the second electrode 120 is placed near the center of the pot bottom 11, so that the arc can rotate around the center of the pot bottom 11, which is conducive to the arc heating the pot bottom 11 evenly.

[0074] It should be noted that when power is applied to the first and second electrodes 110, 120, an arc is generated between the two ends with the shortest distance. Because the arc is generated by the breakdown of gas, the shortest distance mentioned above refers to the shortest distance between the ends of the first and second electrodes 110, 120 along the outer surface 103 of the heating pot body 10, rather than the straight-line distance between the first and second electrodes 110, 120. Therefore, the two ends of the first and second electrodes 110, 120, connected by the shortest line on the outer surface 103 of the heating pot body 10, are the discharge ends 140, and the arc is generated between the discharge ends 140 of the first and second electrodes 110, 120.

[0075] Specifically, the first electrode 110 may partially abut against or fit the sidewall 12, or may be spaced apart from the surface of the sidewall 12 by a certain gap. The second electrode 120 may partially abut against or fit the pot bottom 11, or may be partially embedded in the pot bottom 11, or may be spaced apart from the pot bottom surface 1031 by a certain gap. In some expanded embodiments, the discharge ends 140 of both the first electrode 110 and the second electrode 120 may be film-shaped and fixed to the outer surface 103 of the heating pot body 10.

[0076] At least a portion of the first electrode 110 surrounds the heating pot body 10. The discharge end 140 of the first electrode 110 may surround the outer circumferential surface 1032, the pot bottom surface 1031, or the junction between the outer circumferential surface 1032 and the pot bottom surface 1031. The first electrode 110 surrounding the heating pot body 10 may form a closed ring or a ring with a gap, such as a half-circle ring or a quarter-circle ring. The discharge end 140 of the first electrode 110 may be in contact with or abut the outer surface 103.

[0077] The second electrode 120 is disposed on the pot bottom surface 1031. The discharge end 140 of the second electrode 120 can be attached to the pot bottom surface 1031 or embedded in the pot bottom 11. The discharge end 140 of the second electrode 120 is located at the center of the pot bottom 11. The discharge end 140 of the second electrode 120 can be disc-shaped and slightly larger than the conductive portion 130. The thickness of the disc-shaped discharge end 140 of the second electrode 120 is greater than or equal to 0.5 mm, and the outer diameter is greater than 1 mm. Furthermore, the outer diameter of the discharge end 140 of the second electrode 120 ranges from 2 mm to 5 mm (inclusive).

[0078] 5-7 , in some embodiments, along the depth direction of the accommodating cavity 101, the magnetic member 50 is located on a side of the discharge end 140 of the first electrode 110 away from the second electrode 120, or the magnetic member 50 and the discharge end 140 of the second electrode 120 are at the same height. In some embodiments, along the depth direction of the accommodating cavity 101, the magnetic member 50 is located on a side of the second electrode 120 away from the first electrode 110, or the magnetic member 50 and the discharge end 140 of the first electrode 110 are at the same height.

[0079] Thus, the distribution position of the magnetic member 50 is more diverse and can adapt to various internal structures of the heating module 1100. The magnetic member 50 is arranged close to the first electrode 110 or the second electrode 120 to enhance the magnetic field strength driving the arc rotation and improve the magnetic flux utilization rate of the magnetic member 50.

[0080] Specifically, the depth direction of the accommodating cavity 101 is the direction from the opening 102 to the pot bottom 11, and the depth direction of the accommodating cavity 101 may be perpendicular to the radial direction of the heating pot body 10. The magnetic member 50 may be disposed along the radial direction of the heating pot body 10 on the side of the discharge end 140 of the first electrode 110 facing away from the heating pot body 10. For example, the discharge end 140 of the second electrode 120, the discharge end 140 of the first electrode 110, and the magnetic member 50 may be arranged sequentially from the inside to the outside along the radial direction of the heating pot body 10.

[0081] In some embodiments, as shown in FIG5 , the magnetic member 50 is located on a side of the discharge end 140 of the first electrode 110 that is away from the second electrode 120 along the depth direction of the accommodating cavity 101, and the magnetic member 50 is located above the discharge end 140 of the first electrode 110. In this embodiment, the height difference between the discharge end 140 of the first electrode 110 and the magnetic member 50 along the depth direction of the accommodating cavity 101 is less than or equal to 4 mm.

[0082] In other embodiments, as shown in FIG6 , the magnetic member 50 is located on a side of the second electrode 120 away from the first electrode 110 along the depth direction of the accommodating cavity 101, and the magnetic member 50 is located below the second electrode 120. In this embodiment, the height difference between the discharge end 140 of the second electrode 120 and the magnetic member 50 along the depth direction of the accommodating cavity 101 is less than or equal to 4 mm.

[0083] Referring to Figures 3-6 , the heating module 1100 includes an insulating body 400 defining an insulating space 401. The bottom 11 of the heating pot 10 is housed within the insulating space 401. The discharge ends 140 of the first electrode 110 and the second electrode 120 are both located within the insulating space 401. The magnetic member 50 is located outside the insulating space 401.

[0084] Thus, the arc is formed in the insulating space 401, strengthening the insulation protection of the discharge end 140 and improving the thermal insulation effect of the aerosol generating device 1000. The magnetic member 50 is arranged outside the insulating body 400, which helps to reduce the temperature rise of the magnetic member 50 and improve the heat resistance reliability of the magnetic field.

[0085] Specifically, the insulating body 400 can be a pot structure, and the heating pot 10 can be partially housed within the insulating body 400. The insulating body 400 can be positioned below the heating pot 10, partially covering the sidewall 12 and enveloping the pot bottom 11. The insulating body 400 defines an insulating space 401, which can be defined by the inner wall surface of the insulating body 400 and the pot bottom surface 1031. The discharge ends 140 of the first electrode 110 and the second electrode 120 are both located within the insulating space 401. When the first and second electrodes 110 and 120 are energized, discharge occurs within the insulating space 401 to generate an arc. The high voltage and high temperature discharge ends 140 and the arc can be isolated within the insulating space 401 by the insulating body 400.

[0086] The insulating body 400 may have a bend or rounded corner at the junction of the wall along the depth of the accommodating cavity 101 and the wall opposite the pot bottom 11, and the cross-sectional shape of the insulating body 400 may be approximately U-shaped. The insulating body 400 may continue to extend downward along the depth of the accommodating cavity 101 at the junction of the wall along the depth of the accommodating cavity 101 and the wall opposite the pot bottom 11, and the cross-sectional shape of the insulating body 400 may be approximately H-shaped.

[0087] The insulating body 400 can be made of a heat-resistant insulating material, such as quartz, ceramic, or heat-resistant glass. The heating pot 10 transfers arc heat to the aerosol-forming matrix 20 in the accommodating cavity 101. The insulating body 400 isolates the arc, preventing damage to other components from the high-voltage discharge and reducing the transfer of arc heat to other components.

[0088] Referring to Figures 6, 7, and 9, the magnetic member 50 is located outside the insulating space 401. The magnetic member 50 can be located only above the insulating body 400, only below the insulating body 400, or both above and below the insulating body 400. This arrangement can save installation space. When the magnetic member 50 is located both above and below the insulating body 400, the magnetic pole distribution directions of two or more magnetic members 50 can be consistent, thereby allowing the magnetic field strengths generated by the two or more magnetic members 50 to superimpose.

[0089] As shown in Figure 7, when the magnetic member 50 is positioned above the insulating body 400, the first electrode 110 is closer to the magnetic member 50 than the second electrode 120 along the depth direction of the accommodating cavity 101. The distance between the magnetic member 50 positioned above the insulating body 400 and the discharge end 140 of the first electrode 110 in the depth direction of the accommodating cavity 101 does not exceed 3 mm. When the magnetic member 50 is positioned below the insulating body 400, the second electrode 120 is closer to the magnetic member 50 than the first electrode 110 along the depth direction of the accommodating cavity 101. As shown in Figure 6, the distance between the magnetic member 50 positioned below the insulating body 400 and the discharge end 140 of the second electrode 120 in the depth direction of the accommodating cavity 101 does not exceed 4 mm.

[0090] Referring to FIG. 4 , in some embodiments, the magnetic member 50 may be disposed between the discharge end 140 of the first electrode 110 and the second electrode 120 along the depth direction of the accommodating cavity 101. In this embodiment, the magnetic member 50 is spaced a distance from the discharge end 140 of both the first electrode 110 and the second electrode 120 along the radial direction of the heating pot 10, and is separated from the discharge end 140 by an insulating and heat-insulating member 400.

[0091] Referring to FIG. 3 , in some embodiments, the magnetic member 50 is disposed around the central axis of the heating pot 10 .

[0092] In this way, by arranging the magnetic member 50 around the central axis of the heating pot body 10, space is saved to a certain extent, and the magnetic field formed by the magnetic member 50 has a larger magnetic field strength component perpendicular to the arc, thereby improving the utilization rate of magnetic energy.

[0093] Specifically, the magnetic member 50 surrounds the central axis of the heating pot body 10, and the magnetic lines of force generated by the magnetic member 50 are perpendicular to the plane where the magnetic member 50 is located, and the magnetic flux is relatively large at the center of the magnetic member 50, that is, the central axis of the heating pot body 10. As shown in Figure 3, the magnetic member 50 can form a continuous closed circular ring. In other embodiments, the magnetic member 50 can also form a circular ring with a certain gap, for example, the magnetic member 50 can form a half-circle ring, a third-circle ring, a quarter-circle ring, and for example, the magnetic member 50 can form one or more discontinuous circular rings. The annular magnetic member 50 can be parallel or nearly parallel to the discharge end 140 of the first electrode 110.

[0094] In some embodiments, the magnetic member 50 surrounds the central axis of the heating pot body 10, and the inner surface of the magnetic member 50 is spaced a small distance from the first electrode 110 or the second electrode 120 in the radial direction of the heating pot body, so that the magnetic member 50 provides a sufficiently large magnetic flux between the discharge ends 140. The radial spacing between the inner surface of the magnetic member 50 and the first electrode 110 and / or the second electrode 120 can be in the range of 0.5 mm to 4 mm (inclusive). For example, referring to FIG6, the radial spacing between the inner surface of the magnetic member and the discharge end of the second electrode is in the range of 0.5 mm to 4 mm (inclusive). For another example, referring to FIG7, the radial spacing between the inner surface of the magnetic member and the discharge end of the first electrode is in the range of 0.5 mm to 4 mm (inclusive).

[0095] 4 and 5 , in some embodiments, the first electrode 110 and / or the second electrode 120 includes a discharge end 140 and a conductive portion 130 connected to the discharge end 140 , and the conductive portion 130 is disposed through the insulating body 400 .

[0096] In this way, the conductive portion 130 is passed through the insulating body 400 , thereby enhancing the insulation reliability of the heating module 1100 .

[0097] Specifically, the first electrode 110 and the second electrode 120 are connected to a high-voltage power supply, and the power supply can output high-voltage alternating current or high-voltage direct current to generate an arc. It should be noted that arc rotation can only be achieved when the alternating current provided by the power supply is synchronized with the excitation of the magnetic member 50. To facilitate the production of the heating module 1100, high-voltage direct current is usually applied between the first electrode 110 and the second electrode 120. The conductive parts 130 of the first electrode 110 and the second electrode 120 can be respectively connected to the two output terminals of the transformer (not shown) through a rectifier circuit. The conductive part 130 carries a higher voltage during the discharge process, and the conductive part 130 can maintain a physical connection with the power supply when the first electrode 110 and the second electrode 120 do not conduct high voltage. The surface of the conductive part 130 can be coated with an insulating material to avoid discharge between the conductive parts 130 or between the conductive part 130 and other charged structures.

[0098] The conductive portions 130 of the first electrode 110 and the second electrode 120 may form a certain angle in the direction of passing through the insulating body 400. For example, the conductive portion 130 of the first electrode 110 may pass through the insulating body 400 in the radial direction of the heating pot 10, while the conductive portion 130 of the second electrode 120 may pass through the insulating body 400 in the axial direction of the heating pot 10.

[0099] The insulating body 400 can form a receiving groove 402 extending through the insulating body 400, and the conductive portion 130 passes through the receiving groove 402 and extends into the insulating space 401. The insulating body 400 covers a portion of the conductive portion 130 within the receiving groove 402 from multiple directions, insulating and isolating the conductive portion 130. The insulating body 400 can be assembled with the first electrode 110 and the second electrode 120 to form a modular assembly, facilitating the assembly of the heating module 1100. The insulating body 400 can be fixedly connected to the first electrode 110 and the second electrode 120 by sintering, which facilitates modular assembly and easily maintains the consistency of the relative position of the first electrode 110 and the second electrode 120 during the use cycle.

[0100] The conductive portions 130 of the first electrode 110 and the second electrode 120 are spaced apart by a predetermined distance along the axial direction of the heating pot body 10 at an end away from the discharge end 140 and are connected to an external power supply (not shown) at a height position staggered in the axial direction of the heating pot body 10 to enhance insulation protection between the conductive portions 130.

[0101] In some embodiments, the heating module 1100 may include an insulating structure in the intervals between the conductive portions 130 to enhance insulation. The insulating structure may be integrally formed with the insulating and heat-insulating member 400, or it may be separately provided and connected to the heating module 1100 via snap-fit, screw thread, or adhesive. For example, the insulating structure may be in the form of a rib, an annular ring, or a structural column.

[0102] In some embodiments, an insulating member 60 may be provided at the connection between the conductive portion 130 and the power source (not shown) or between the conductive portion 130 and the power source (not shown) to further improve the insulation reliability of the high-voltage connection of the conductive portion 130. For example, the insulating member 60 may be a structure nested or inserted into the conductive portion 130. For another example, the insulating member 60 may be formed by sealing the connection between the conductive portion 130 and the power source (not shown) with glue.

[0103] Referring to Figures 4 and 6, in some embodiments, the heating pot body 10 has an opening 102 opposite to the pot bottom 11 of the heating pot body 10, and the conductive portion 130 includes a first conductive segment 131, a second conductive segment 132, and a third conductive segment 133 connected in sequence. The first conductive segment 131 extends from the discharge end toward the opening 102. The first conductive segment 131 is located in the insulation space 401, the second conductive segment 132 is provided through the insulating insulator 400, and the third conductive segment 133 is located outside the insulation space 401 and extends from the second conductive segment 132 in a direction away from the opening 102.

[0104] In this way, the conductive portion 130 extends a certain distance toward the opening 102 and then passes through the insulating insulator 400 and extends in the opposite direction to the initial direction. An angle is formed between the first conductive segment 131, the second conductive segment 132 and the third conductive segment 133, which can reduce the volume of the heating module 1100 and allow the high-temperature heat of the first electrode 110 and the second electrode 120 to be fully retained at the bottom of the heating pot body 10, thereby reducing outward heat conduction and improving heat utilization.

[0105] Specifically, in this embodiment, the bottom 11 of the heating pot body 10 can be a round bottom structure or a flat bottom structure. The discharge end 140 of the first electrode 110 can abut against the bottom surface 1031, the outer surface 1032 or the connection between the bottom surface 1031 and the outer surface 1032.

[0106] The first conductive segment 131 of the first electrode 110 connects to the discharge end 140 and can be positioned close to the outer circumferential surface 1032 of the sidewall 12. On the first electrode 110, the first, second, and third conductive segments 131, 132, and 133 can form an angle similar to the outer contour of the insulating body 400, extending the length of the bottom electrode while reducing the space occupied by the conductive portion 130. The second conductive segment 132 of the first electrode 110 can extend radially through the insulating body 400 of the heating pot 10. The first and third conductive segments 131, 133 of the first electrode 110 can be distributed radially on opposite sides of the same wall of the insulating body 400, reducing the risk of breakdown between the first and third conductive segments 131, 133. The conductive portion 130 and the discharge end 140 can be integrally formed from the same material.

[0107] The conductive part 130 can be made of metal material. The conductive part 130 can be a metal wire, a round wire, a flat wire, etc. The excellent ductility of the metal material is conducive to the conductive part 130 forming a variety of bending structures and distribution states in the heating module 1100.

[0108] 3 and 6 , in some embodiments, the third conductive segment 133 and the second conductive segment 132 are detachably connected.

[0109] In this way, the third conductive segment 133 and the second conductive segment 132 are detachably connected, which facilitates the assembly of the heating module 1100 and the aerosol generating device 1000 .

[0110] Specifically, the second conductive segment 132 is disposed through the insulating body 400, and the third conductive segment 133 extends distally from the side of the second conductive segment 132 away from the discharge end 140. Typically, the third conductive segment 133 is longer than the second conductive segment 132. The third conductive segment 133 can have a certain degree of rigidity. For example, the third conductive segment 133 can be a conductive column, conductive rod, conductive sleeve, or the like made of a hard material. The third conductive segment 133 and the second conductive segment 132 can be formed separately from different materials. The rigidity of the third conductive segment 133 also helps maintain a stable relative position of the first electrode 110 and / or the second electrode 120.

[0111] Referring to Figure 8, in some embodiments, the heating pot body 10 has an opening 102 opposite to the pot bottom 11 of the heating pot body 10, and the conductive portion 130 includes a first conductive segment 131 and a second conductive segment 132. The first conductive segment 131 connects the second conductive segment 132 and the discharge end 140. The first conductive segment 131 is arranged through the insulating body 400, and the second conductive segment 132 is located outside the insulating space 401 and extends from the second conductive segment 132 in a direction away from the opening 102.

[0112] Thus, by bending the conductive portion 130 at the insulating body 400, the volume of the heating module 1100 can be reduced while ensuring insulation strength. Furthermore, the high-temperature heat from the first and second electrodes 110, 120 can be fully retained at the bottom of the heating pot 10, reducing heat conduction outward and improving heat utilization.

[0113] Specifically, the aerosol-forming substrate 20 can enter the accommodating chamber 101 through the opening 102. The aerosol-forming substrate 20 can be applied to the pot bottom 11 and the side wall 12, poured or injected onto the pot bottom 11, or placed directly on the pot bottom 11 using a handheld or transfer tool. The aerosol-forming substrate 20 generated by atomization can flow out of the accommodating chamber 101 through the opening 102.

[0114] The discharge end 140 of the first electrode 110 can be located on the pot bottom surface 1031, the outer peripheral surface 1032, or at the junction of the pot bottom surface 1031 and the outer peripheral surface 1032. The first conductive segment 131 of the first electrode 110 extends from the discharge end 140 toward the periphery of the heating pot body 10, passing through the insulating and heat-insulating body 400. The first conductive segment 131 can extend radially along the heating pot body 10 to shorten the length of the first conductive segment 131 passing through the insulating and heat-insulating body 400. The second conductive segment 132 extends from the end of the first conductive segment 131 away from the discharge end 140 to a point away from the heating pot body 10 and is connected to an external power source (not shown).

[0115] Referring to FIG. 4 and FIG. 6 , in some embodiments, along the tangential direction of the heating pot 10 , the cross-sectional area of ​​the first conductive segment 131 is smaller than or equal to the cross-sectional area of ​​the discharge end 140 .

[0116] In this way, by setting the cross-sectional area of ​​the first conductive segment 131 along the tangent direction of the heating pot body 10 to be smaller than the discharge end 140 , the arc heat transferred outward along the conductive portion 130 is reduced.

[0117] Specifically, along the tangent direction where the discharge end 140 of the first electrode 110 contacts the outer surface 103, the cross-sectional area of ​​the first conductive segment 131 of the first electrode 110 is less than or equal to the cross-sectional area of ​​the discharge end 140 of the first electrode 110. Along the tangent direction where the discharge end 140 of the second electrode 120 contacts the outer surface 103, the cross-sectional area of ​​the first conductive segment 131 of the second electrode 140 is less than or equal to the cross-sectional area of ​​the discharge end 140 of the second electrode 120. The first conductive segment 131 can be thinner and narrower than the discharge end 140. Properly increasing the cross-sectional area of ​​the discharge end 140 along the tangent direction of the heating pot 10 can increase the effective discharge end surface. Properly reducing the cross-sectional area of ​​the first conductive segment 131 facilitates its insertion through the insulating body 400. Increasing the cross-sectional area of ​​the discharge end 140 can increase the thermal resistance and reduce the temperature rise of the conductive portion 130.

[0118] It should be noted that the cross-sectional area of ​​the discharge end 140 along the tangential direction of the heating pot body 10 is slightly larger than the cross-sectional area of ​​the first conductive segment 131 , but the absolute value of the cross-sectional area of ​​the discharge end 140 can still ensure that the discharge end 140 discharges and breaks down to generate an arc.

[0119] The discharge end portion 140 of the second electrode 120 may be disk-shaped. The conductive portion 130 and the discharge end portion 140 of the second electrode 120 may be separate parts that are assembled and connected together to conduct electricity.

[0120] In some embodiments, the side of the discharge end 140 facing the outer surface 103 of the heating pot 10 can form a curved surface that aligns with the outer surface 103 of the heating pot 10, as shown in Figure 6. Alternatively, the radius of curvature of the curved surface formed by the discharge end 140 facing the outer surface 103 of the heating pot 10 is consistent with or close to the radius of curvature of the outer surface 103 at the point closest to the discharge end. This allows the discharge end 140 to more closely align with the pot bottom 1031, thereby improving heating efficiency.

[0121] The number of electrode pairs can be one, two, three, or more. The multiple pairs of first electrodes 110 and second electrodes 120 can be spaced apart and distributed along the circumference of the heating pot 10. Furthermore, the multiple pairs of first electrodes 110 and second electrodes 120 can be evenly distributed along the circumference of the heating pot 10.

[0122] 4 , in some embodiments, the discharge end 140 is annular, and there are two first conductive segments 131 , which are spaced apart along the circumference of the discharge end 140 .

[0123] In this way, the two first conductive segments 131 are spaced apart along the circumference of the discharge end 140 , which facilitates detection of resistance changes at the discharge end 140 of the first electrode 110 .

[0124] In some embodiments, as shown in FIG4 , the discharge end 140 of the first electrode 110 can be annular, and the conductive portion 130 of the first electrode 110 can be disposed on two radially spaced apart sides of the heating pot 10. The conductive portions 130 disposed on both radially opposite sides of the heating pot 10 can be connected to the same pole of an external power source. In other words, when energized, the discharge end 140 of the first electrode 110 has substantially the same potential at any position, and has a significant potential difference with the discharge end 140 of the second electrode 120.

[0125] In some embodiments, as shown in FIG. 8 , the discharge end 140 of the first electrode 110 may be ring-shaped, and the conductive portion 130 of the first electrode 110 may be disposed only on one side of the heating pot 10 .

[0126] Referring to FIG. 6 , FIG. 7 and FIG. 9 , in some embodiments, the magnetic member 50 is disposed close to the heating pot 10 relative to the third conductive segment 131 along the radial direction of the heating pot 10 .

[0127] In this way, the internal structure of the heating module 1100 is more compact, which is conducive to further reducing the volume of the heating module 1100.

[0128] Specifically, the third conductive segment 131 extends outside the heating pot 10 from a position near the opening 102 toward the pot bottom 11 and below the pot bottom 11. The third conductive segment 131 may be separated from the heating pot 10 by a certain distance through the insulating body 400. The third conductive segment 131 and the magnetic member 50 are disposed outside the insulating space 401. The magnetic member 50 may be disposed between the heating pot 10 and / or the insulating body 400 and the third conductive segment 131.

[0129] In some embodiments, the thickness of the pot bottom 11 is smaller than the thickness of the side wall 12 .

[0130] In this way, by setting the thickness of the bottom and side wall 12 of the heating pot body 10 within a reasonable range, and further setting the thickness of the pot bottom 11 to be smaller than the thickness of the side wall 12, the heating efficiency and the heating rate can be improved.

[0131] Specifically, the thickness of the pot bottom 11 ranges from 0.4 mm to 1.0 mm (inclusive). Furthermore, the thickness of the side wall 12 can range from 0.5 mm to 1.0 mm, and the thickness of the pot bottom 11 is selected to be smaller than the thickness of the side wall 12 .

[0132] Specifically, the sidewall 12 may have a uniform thickness, or the thickness of the sidewall 12 may vary in a gradient or slope. The sidewall 12 may also have a uniform thickness over a large area, with the thickness decreasing or increasing in some areas. For example, the thickness of the sidewall 12 may be 0.5 mm to 1.0 mm, 0.6 mm to 0.9 mm, 0.63 mm to 0.88 mm, 0.7 mm to 0.9 mm, 0.75 mm to 0.8 mm, etc. For another example, the thickness of the sidewall 12 may be 0.5 mm, 0.54 mm, 0.65 mm, 0.72 mm, 0.81 mm, 0.97 mm, or 1.0 mm.

[0133] The thickness of the pot bottom 11 is less than that of the side wall 12, and the wall thickness at the connection between the pot bottom 11 and the side wall 12 may be gradually thinner from the side wall 12 to the pot bottom 11. The pot bottom 11 may be of uniform thickness, that is, the thickness of the pot bottom 11 is consistent throughout. The pot bottom 11 may also be thinned in some areas to reduce the thermal resistance between the arc and the aerosol-forming matrix 20. At locations where the thickness of the pot bottom 11 is not uniform, the thickness may vary smoothly to avoid discontinuities on the surface of the heated pot body 10. Exemplarily, the thickness of the pot bottom 11 may range from 0.4 mm to 1.0 mm, 0.45 mm to 0.9 mm, 0.5 mm to 0.8 mm, 0.6 mm to 0.77 mm, etc. For another example, the thickness of the pot bottom 11 can be 0.4mm, 0.5mm, 0.68mm, 0.75mm, 0.88mm, 0.96mm, 1.0mm, etc., and the thickness of the thinnest part of the pot bottom 11 can be 0.4mm, 0.52mm, 0.65mm, 0.73mm, 0.8mm, etc.

[0134] Referring to FIG. 8 , in some embodiments, an infrared radiation film 40 is disposed on the inner surface of the insulating body 400 .

[0135] In this way, by providing the infrared radiation film 40 on the inner surface of the insulating body 400 , the heat insulation capability of the insulating body 400 can be enhanced.

[0136] It should be noted that the heat generated by the discharge of the first electrode 110 and the second electrode 120 outside the accommodating cavity 101 can be transmitted into the accommodating cavity 101 via infrared radiation or heat transfer, by heating the bottom 11 (and / or a portion of the sidewall 12) of the pot body 10, thereby heating the atomized aerosol-forming matrix 20 and generating an aerosol. The arc heat is also radiated outside the heated pot body 10 in the form of infrared radiation.

[0137] Specifically, the inner surface of the insulating body 400 is the surface of the insulating body 400 facing the heating pot 10 or the discharge end 140. The infrared radiation film 40 can be a coating attached to the inner surface of the insulating body 400. The coating material of the infrared radiation film 40 can be a metal oxide with a high infrared radiation reflectivity. For example, the infrared radiation film 40 can be made of one or more materials such as ferric oxide, manganese dioxide, cobalt oxide, and copper oxide. The infrared radiation film 40 can also be made of a material with a high infrared radiation absorption rate. It can also use a combination of reflection and heat absorption to reduce the outward heat transfer of infrared radiation, thereby reducing the temperature rise of the heating module 1100 outside the insulating body 400.

[0138] Referring to FIG. 10 , in some embodiments, the aerosol generating device 1000 includes a nozzle assembly 300 , and the nozzle assembly 300 covers the accommodating cavity 101 .

[0139] In this way, gas can be blown into the accommodating chamber 101 through the nozzle assembly 300 , and aerosol generated in the accommodating chamber 101 can be sucked away by suction.

[0140] Specifically, the nozzle assembly 300 can be mounted on top of the heating pot body 10 and can be extruded and assembled with the heating pot body 10 at the flange 14. The heating pot body 10 can have a flange formed at the opening 102 that connects to the sidewall 12 and extends in a different direction from the sidewall 12. The seal 30 can cover the flange, sealing the assembly gap between the nozzle assembly 300 and the flange 14. The nozzle assembly 300 can cover the opening 102, allowing aerosol generated in the accommodating chamber 101 to overflow from the opening 102 and be inhaled through the nozzle assembly 300.

[0141] Please refer to FIG. 1 and FIG. 10 again. The aerosol generating device 1000 according to the embodiment of the present application includes the heating module 1100 described in any of the above embodiments.

[0142] Specifically, the aerosol generating device 1000 includes a housing 200, which is used to mount a heating module 1100. The heating module 1100 can be housed within the housing 200, and the heating pot 10 can be detachably connected to the housing 200. The nozzle assembly 300 can be disposed at one end of the housing 200. To enhance the insulation and sealing performance of the aerosol generating device 1000, a seal 30 and / or an insulating member 60 can be disposed between the heating pot 10 and / or the insulating member 400 and the housing 200. The seal 30 and insulating member 60 can be made of an insulating material with a certain degree of elasticity, such as silicone, rubber, or insulating plastic.

[0143] In the description of this specification, reference to the terms "one embodiment," "some embodiments," "certain embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any appropriate manner in any one or more embodiments or examples.

[0144] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A heating module, characterized in that, Comprising: A heating pot body, which forms a receiving cavity for accommodating an aerosol-forming substrate; A first electrode and a second electrode, the first electrode and the second electrode are spaced apart outside the receiving cavity, and an electric arc is formed between the first electrode and the second electrode when direct current is applied to heat the heating pot body; and A magnetic member, the magnetic member is spaced apart from the heating pot body, and the magnetic member is used to rotate the electric arc at the bottom of the heating pot body.

2. The heating module according to claim 1, wherein At least a part of the first electrode is fixed on the outer surface of the heating pot body; or, The first electrode and the heating pot body are of a split structure, and the first electrode is close to or abuts against the outer surface of the heating pot body.

3. The heating module according to claim 2, characterized in that The first electrode is close to or abuts against the side wall of the heating pot body, and the second electrode is close to or abuts against the center of the bottom of the heating pot body.

4. The heating module according to claim 3, characterized in that, Along the depth direction of the receiving cavity, the magnetic member is located on the side of the discharging end of the first electrode away from the second electrode, or the magnetic member and the discharging end of the second electrode are at the same height; and / or, Along the depth direction of the receiving cavity, the magnetic member is located on the side of the second electrode away from the first electrode, or the magnetic member and the discharging end of the first electrode are at the same height.

5. The heating module according to claim 1, wherein The heating module includes an insulating and heat-insulating body, which forms a heat-insulating space, the bottom of the heating pot body is received in the heat-insulating space, the discharging ends of the first electrode and the second electrode are both located in the heat-insulating space, and the magnetic member is located outside the heat-insulating space.

6. The heating module according to claim 5, characterized in that, The magnetic member is arranged around the central axis of the heating pot body.

7. The heating module according to claim 5, wherein The first electrode and / or the second electrode includes a discharging end and a conductive part connected to the discharging end, and the conductive part penetrates through the insulating and heat-insulating body.

8. The heating module according to claim 7, wherein The heating pot body has an opening opposite to the bottom of the heating pot body, the conductive part includes a first conductive section, a second conductive section and a third conductive section connected in sequence, the first conductive section extends from the discharging end towards the opening, the first conductive section is located in the heat-insulating space, the second conductive section penetrates through the insulating and heat-insulating body, and the third conductive section is located outside the heat-insulating space and extends from the second conductive section in a direction away from the opening.

9. The heating module according to claim 8, wherein, The third conductive section is detachably connected to the second conductive section.

10. The heating module according to claim 7, characterized in that, The heating pot body has an opening opposite to the bottom of the heating pot body, the conductive part includes a first conductive section and a second conductive section, the first conductive section connects the second conductive section and the discharging end, the first conductive section penetrates through the insulating and heat-insulating body, and the second conductive section is located outside the heat-insulating space and extends from the second conductive section in a direction away from the opening.

11. The heating module according to claim 10, wherein Along the tangential direction of the heating pot body, the cross-sectional area of the first conductive section is less than or equal to the cross-sectional area of the discharging end.

12. The heating module according to claim 8, wherein, The discharging end is annular, and the number of the first conductive sections is two, and the two first conductive sections are spaced apart along the circumference of the discharging end.

13. The heating module according to claim 8, characterized in that, The magnetic member is arranged closer to the heating pot body relative to the third conductive section along the radial direction of the heating pot body.

14. An aerosol generating device, characterized in that, Including the heating module according to any one of claims 1-13.

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