Heating module and aerosol generating device

Abstract

The utility model provides a heating module and an aerosol generating device. The heating module comprises a heating pot body, a first electrode and a second electrode. Wherein an accommodating cavity for accommodating an aerosol forming substrate is formed in the heating pot body. The first electrode and the second electrode are arranged outside the containing cavity in a spaced mode, the first electrode and / or the second electrode comprise / comprises a discharging end and a conductive part connected with the discharging end, and the conductive part extends from the discharging end in the radial direction of the heating pot body or in the direction away from the pot bottom of the heating pot body. And when the first electrode and the second electrode are electrified, an electric arc is formed between the discharge end parts of the first electrode and the second electrode so as to heat the heating pot body. In the aerosol generating device, the conductive parts of the first electrode and the second electrode extend from the discharge end part in the radial direction of the heating pot body or in the direction far away from the pot bottom of the heating pot body, so that the first electrode and the second electrode are ensured to discharge at the discharge end part to form an electric arc, and the heating pot body is effectively heated.

Description

Technical Field

[0001] 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

[0002] The aerosol generating device can be used to heat the aerosol forming substrate to form an aerosol by heating the aerosol forming substrate without burning it. In the related art, the aerosol generating device includes a heating pot and an electrode pair. The aerosol forming substrate can be accommodated in the heating pot. The electrode pair discharges outside the heating pot to form an arc. How to effectively use the arc heat to heat the heating pot becomes a key technical issue. Utility Model Content

[0003] The present application provides a heating module and an aerosol generating device.

[0004] The heating module of the embodiment of the present application includes a heating pot, a first electrode and a second electrode, wherein the heating pot is formed with a housing cavity for accommodating an aerosol-forming substrate. The first electrode and the second electrode are arranged outside the housing cavity at intervals, the first electrode and / or the second electrode include a discharge end and a conductive portion connected to the discharge end, the conductive portion extends from the discharge end in the radial direction of the heating pot or in a direction away from the bottom of the heating pot, and an arc is formed between the discharge ends of the first electrode and the second electrode when the first electrode and the second electrode are energized to heat the heating pot.

[0005] In the aerosol generating device of the embodiment of the present application, the first electrode and the second electrode are spaced apart outside the accommodating cavity, and the conductive parts of the first electrode and the second electrode extend from the discharge end in the radial direction of the heating pot body or in the direction away from the bottom of the heating pot body, thereby ensuring that the discharge end is the end closest to the first electrode and the second electrode, ensuring that the first electrode and the second electrode discharge at the discharge end to form an arc, so that the arc heat is more concentrated on the bottom of the pot, effectively heating the heating pot body, and improving the utilization rate of the arc heat.

[0006] In some embodiments, the heating pot body has an opening opposite to the bottom of the heating pot body, the conductive portion includes a first conductive segment, a second conductive segment, and a third conductive segment connected in sequence, one end of the first conductive segment is connected to the discharge end and the other end thereof extends from the discharge end toward the opening, the second conductive segment extends along the radial direction of the heating pot body, and the third conductive segment extends from the second conductive segment toward the direction away from the opening.

[0007] In this way, the conductive part extends a certain distance toward the opening and then extends radially along the heating pot body, and then turns again to extend in a direction away from the opening, 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.

[0008] In some embodiments, the heating pot body has an opening opposite to the bottom of the heating pot body, the conductive portion 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 extends radially along the heating pot body, and the second conductive segment extends from the first conductive segment in a direction away from the opening.

[0009] In this way, the first conductive segment extends radially along the heating pot body, and the second conductive segment extends from the second conductive segment in a direction away from the opening, so that the heat formed by the arc discharged between the discharge ends can be fully retained at the bottom of the heating pot body, reducing outward heat conduction and improving heat utilization. At the same time, it is beneficial to reduce the space occupied by the conductive part and facilitate miniaturization of the device.

[0010] In some embodiments, along the tangent 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.

[0011] Thus, by setting the cross-sectional area of ​​the first conductive segment along the tangent direction of the heating pot body smaller than that of the discharge end, the discharge area of ​​the discharge end can be increased without increasing the accommodating space of the conductive part, thereby improving the discharge intensity of the discharge end and the arc formation efficiency.

[0012] In some embodiments, the heating module also 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 conductive part is passed through the insulating insulator.

[0013] In this way, by arranging an insulating insulator outside the discharge ends of the first electrode and the second electrode, an electric arc is formed in the insulating space defined by the outer surface of the heating pot body and the insulating insulator, thereby strengthening the insulation protection of the discharge end and improving the insulation effect of the aerosol generating device.

[0014] In some embodiments, the shortest connection line between the first electrode and the second electrode passes through the bottom of the heating pot.

[0015] In this way, the shortest connection line between the first electrode and the second electrode passes through the bottom of the heating pot, so that the arc is generated at the bottom of the pot, reducing the probability of the arc breaking down along the circumference of the heating pot and improving the heating efficiency.

[0016] In some embodiments, the first electrode and the second electrode are arranged along the radial direction of the heating pot, and the shortest connecting line passes through the center of the bottom of the heating pot.

[0017] In this way, the shortest connecting line between the first electrode and the second electrode along the outer surface of the heating pot body passes through the center of the pot bottom, ensuring that the arc is generated at the center of the pot bottom, which is beneficial to the uniformity of heating and the stability of the heating position.

[0018] In some embodiments, the heating pot body includes a side wall and a pot bottom connected to the side wall, the pot bottom is a round bottom structure, and the first electrode and the second electrode are both arranged on the side wall.

[0019] In this way, by arranging the first electrode and the second electrode on the side wall, the insulation can be strengthened, and the discharge ends are arranged at intervals on both sides of the pot bottom, so that the formed arc can easily cover the pot bottom surface.

[0020] In some embodiments, the thickness of the bottom of the pot is less than the thickness of the side walls.

[0021] In this way, by setting the thickness of the bottom and side walls of the heating pot body within a reasonable range, and further setting the thickness of the bottom of the pot to be smaller than the thickness of the side walls, the heating efficiency and the heating rate can be improved.

[0022] In some embodiments, an infrared radiation film is disposed on the inner surface of the insulating body.

[0023] In this way, by providing an infrared radiation film on the inner surface of the insulating body, the thermal insulation capacity of the insulating body can be enhanced.

[0024] The aerosol generating device of the embodiment of the present application includes the heating module described in any of the above embodiments.

[0025] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] 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:

[0027] Figure 1 is a schematic structural diagram of an aerosol generating device according to an embodiment of the present application;

[0028] Figure 2 is a schematic structural diagram of a heating module according to an embodiment of the present application;

[0029] Figure 3 is a schematic diagram of the structure of the heating module according to the embodiment of the present application from a top view;

[0030] Figure 4 is a schematic structural diagram of a heating module according to another embodiment of the present application;

[0031] Figure 5 is a schematic structural diagram of a heating module according to another embodiment of the present application from a top view;

[0032] Figure 6 yes Figure 3A schematic cross-sectional view of the heating module along the AA direction;

[0033] Figure 7 is a cross-sectional schematic diagram of a heating module according to yet another embodiment of the present application;

[0034] Figure 8 yes Figure 5 A schematic cross-sectional view of the heating module along the BB direction;

[0035] Fig. 9 is a schematic structural diagram of a first electrode or a second electrode in an embodiment of the present application;

[0036] Fig.10 is a schematic diagram of the exploded structure of an aerosol generating device according to an embodiment of the present application;

[0037] Fig.11 It is a schematic diagram of the cross-sectional structure of a heating module in yet another embodiment of the present application.

[0038] Description of reference numerals:

[0039] 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 member 30, infrared radiation film 40, magnetic member 50;

[0040] The aerosol generating device 1000 , the housing 200 , the nozzle assembly 300 , the insulating and heat-insulating body 400 , the heat-insulating space 401 , the containing groove 402 , the insulating structure 411 , and the heating module 1100 . DETAILED DESCRIPTION

[0041] 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 cannot be understood as limiting the present application.

[0042] 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 positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying 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 a limitation on the present application. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0043] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0044] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0045] The disclosure below provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the various specific processes and material examples provided by the present application, but those of ordinary skill in the art can appreciate the application of other processes and / or the use of other materials.

[0046] See also Figure 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 aerosol using an aerosol-forming matrix 20. The aerosol-forming matrix 20 is a flower, stem or leaf product of a plant that has been processed to generate an aerosol after heating. Aerosol is a colloid formed by solid or liquid particles distributed in a gaseous medium. The user can inhale the aerosol into the oral cavity, nasal cavity or lungs through the mouth or nose, and the aerosol inhaled into the user's respiratory system can be used for a variety of purposes such as food, medicine, health care, and entertainment.

[0047] The heating module 1100 of the embodiment of the present application includes a heating pot body 10, a first electrode 110 and a second electrode 120, wherein the heating pot body 10 is formed with a receiving cavity 101 for receiving the aerosol-forming substrate 20. The first electrode 110 and the second electrode 120 are arranged outside the receiving cavity 101 at intervals, and the first electrode 110 and / or the second electrode 120 include a discharge end 140 and a conductive portion 130 connected to the discharge end 140, and the conductive portion 130 extends from the discharge end 140 in the radial direction of the heating pot body 10 or in a direction away from the pot bottom 11 of the heating pot body 10. When the first electrode 110 and the second electrode 120 are energized, an arc is formed between the discharge end 140 of the first electrode 110 and the second electrode 120 to heat the heating pot body 10.

[0048] In the aerosol generating device 1000 of the embodiment of the present application, the first electrode 110 and the second electrode 120 are spaced apart outside the accommodating cavity 101, and the conductive portions 130 of the first electrode 110 and the second electrode 120 extend from the discharge end 140 along the radial direction of the heating pot body 10 or away from the pot bottom 11 of the heating pot body 10, thereby ensuring that the discharge end 140 is the end closest to the first electrode 110 and the second electrode 120, ensuring that the first electrode 110 and the second electrode 120 discharge at the discharge end 140 to form an arc, so that the arc heat is more concentrated on the pot bottom 11, effectively heating the heating pot body 10, and improving the utilization rate of the arc heat.

[0049] Specifically, the aerosol-forming matrix 20 in the accommodating cavity 101 may be in a fully solid or semi-solid state. For example, the aerosol-forming matrix 20 may be a paste or a gel, and the paste or gel with high humidity may be applied to the inner wall surface of the pot bottom 11. For another example, the completely solid aerosol-forming matrix 20 may be in a relatively fine block or sheet shape. The aerosol-forming matrix 20 as a whole may have a certain fluidity and may be deposited on the bottom of the heating pot body 10.

[0050] See also Figure 3 and Figure 6 , the bottom of the heating pot bottom 11 may be closed and form the pot bottom 11. An opening 102 may be formed at one end of the heating pot body 10 opposite to the pot bottom 11, and the end forming the opening 102 is the top of the heating pot body 10. In this application, the direction from the opening 102 of the heating pot body 10 to the pot bottom 11 is defined as the direction from top to bottom, and the direction from the center of the opening 102 to the geometric center of the pot bottom 11 is defined as the axial direction of the heating pot body 10, that is, the vertical direction of the heating pot body 10 and the aerosol generating device 1000. The lateral direction of the heating pot body 10 and the aerosol generating device 1000 is perpendicular to the vertical direction mentioned above, and the shape of the cross section of the inner and outer contours of the heating pot body 10 includes but is not limited to a circle, an ellipse, a regular quadrilateral, a rectangle, a polygon, and other polygons with rounded corners or curved edges. Exemplarily, this application is described by taking the shape of the cross section of the inner and outer contours of the heating pot body 10 as a circle, and the circumferential direction of the cross section of the outer contour is the circumferential direction of the heating pot body 10.

[0051] It should be noted that arc discharge is a gas discharge phenomenon, which is a process in which the gas between the electrode pair is ionized to form plasma under the action of a strong electric field, that is, an arc. The generation of an arc is accompanied by dazzling brilliance and a large amount of heat. The first electrode 110 and the second electrode 120 are arranged at intervals. Applying high voltage electricity to the first electrode 110 and the second electrode 120 can ionize the gas in the interval between the first electrode 110 and the second electrode 120 to generate an arc. The heat of the arc can rapidly increase the heating pot body 10 to a higher temperature, and heat the aerosol-forming matrix 20 in the accommodating cavity 101, so that it is atomized to form an aerosol. It can be understood that during the discharge process, the temperature of the first electrode 110 and the second electrode 120 will also increase, and provide a certain amount of heat to the atomization of the aerosol-forming matrix 20.

[0052] See also Figure 6 and Figure 7 In some embodiments, the bottom 11 of the heating pot body 10 is a flat bottom structure or a round bottom structure.

[0053] 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 is away from the accommodating cavity 101 and faces the insulating body 400. The outer peripheral surface 1032 is connected to the outer contour edge of the pot bottom surface 1031 and can extend upward from the pot bottom 11 along the axial direction of the heating pot body 10 to the opening 102.

[0054] like Figure 7 As shown, the pot bottom 11 is a flat bottom structure, and the pot bottom surface 1031 may be a flat surface as a whole, or the pot bottom surface 1031 may include a flat surface and a circular arc transition surface at the edge of the outer contour. The connection between the pot bottom 11 and the side wall 12 may have a certain fillet to form a transition surface. One of the pot bottom surface 1031 and the inner wall surface of the accommodating cavity 101 may be a flat surface, and the other side may have a certain curvature.

[0055] like Figure 6 As shown, the pot bottom 11 is a round bottom structure, and the pot bottom 11 may 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 and transitioned by an arc. The pot bottom surface 1031 may be an arc surface as a whole, or the pot bottom surface 1031 may be a flat surface at the center or at the edge, and connected by an arc surface transition.

[0056] 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 of heat transfer and a relatively large contact area with the electric arc.

[0057] See also Figure 2-Figure 4 The heating module 1100 of the embodiment of the present application includes an insulating insulator 400, which forms an insulating space 401. The bottom 11 of the heating pot body 10 is accommodated in the insulating space 401, the discharge ends 140 of the first electrode 110 and the second electrode 120 are both located in the insulating space 401, and the conductive part 130 is passed through the insulating insulator 400.

[0058] In the aerosol generating device 1000 of the embodiment of the present application, the first electrode 110 and the second electrode 120 form an arc outside the accommodating cavity 101 to heat the aerosol-forming matrix 20 to generate an aerosol. By providing an insulating insulator 400 outside the discharge end 140 of the first electrode 110 and the second electrode 120, the arc is formed in the insulating space 401 defined by the outer surface 103 of the heating pot body 10 and the insulating insulator 400, thereby strengthening the insulation protection of the discharge end 140 and improving the insulation effect of the aerosol generating device 1000.

[0059] See also Figure 4 and Figure 6The insulating and heat-insulating body 400 may be a pot structure, and the heating pot 10 may be partially accommodated in the insulating and heat-insulating body 400. The insulating and heat-insulating body 400 may be arranged below the heating pot 10, and the insulating and heat-insulating body 400 may cover part of the side wall 12 and cover the pot bottom 11. The insulating and heat-insulating body 400 forms an insulating space 401, and the insulating and heat-insulating body 400 may be defined by the inner wall surface of the insulating and heat-insulating body 400 and the pot bottom surface 1031. The discharge end 140 of the first electrode 110 and the second electrode 120 are both located in the insulating space 401. When the first electrode 110 and the second electrode 120 are energized, discharge occurs in the insulating space 401 to generate an arc. The discharge end 140 and the arc with high voltage and high temperature may be isolated in the insulating space 401 by the insulating and heat-insulating body 400.

[0060] In the insulating body 400, the connection between the wall surface along the depth direction of the accommodating cavity 101 and the wall surface opposite to the pot bottom 11 can form a folded angle or a rounded angle, and the cross-sectional shape of the insulating body 400 can be close to a "U" shape. The insulating body 400 can continue to extend downward along the depth direction of the accommodating cavity 101 at the connection between the wall surface along the depth direction of the accommodating cavity 101 and the wall surface opposite to the pot bottom 11, and the cross-sectional shape of the insulating body 400 can be close to an "H" shape.

[0061] The heating pot body 10 can be made of a material with good heat resistance, for example, 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 conductivity, which can be a conductor or a semiconductor material. For example, the first electrode 110 and the second electrode 120 are made of one or more of nickel-based alloys, iron-based alloys, copper-based alloys, zirconium, hafnium, tungsten, graphite, and carbon fiber. A set of first electrodes 110 and second electrodes 120 that discharge and generate arcs when powered on can be made of the same or different materials.

[0062] The insulating and heat-insulating body 400 can be made of insulating materials with good heat resistance, for example, quartz, ceramics, heat-resistant glass and other materials. The heating pot body 10 transfers the arc heat to the accommodating cavity 101 to heat the aerosol-forming matrix 20. The insulating and heat-insulating body 400 isolates the arc, which can prevent high-voltage discharge from damaging other structural parts and reduce the transmission of arc heat to other structural parts.

[0063] By penetrating the conductive portion 130 through the insulating and heat-insulating body 400 , the insulation reliability of the heating module 1100 is enhanced.

[0064] Specifically, the first electrode 110 and the second electrode 120 can conduct high-voltage alternating current or high-voltage direct current to generate an arc. The first electrode 110 and the second electrode 120 are connected to a high-voltage power supply, and the conductive parts 130 of the first electrode 110 and the second electrode 120 can be respectively connected to two output ends of a transformer (not shown). The conductive part 130 carries a relatively high 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.

[0065] The insulating and heat-insulating body 400 may form a receiving groove 402 that penetrates the insulating and heat-insulating body 400, and the conductive part 130 passes through the receiving groove 402 and extends into the heat-insulating space 401. The insulating and heat-insulating body 400 covers the conductive part 130 from multiple directions to insulate and isolate the conductive part 130. The insulating and heat-insulating body 400 may be assembled with the first electrode 110 and the second electrode 120 to form a modular component, which is convenient for assembling the heating module 1100. The insulating and heat-insulating body 400 may be fixedly connected with the first electrode 110 and the second electrode 120 by sintering, which is beneficial to the modularization of the component and is easy to maintain the consistency of the relative position of the first electrode 110 and the second electrode 120 during the use cycle.

[0066] In some embodiments, the conductive portion 130 of the first electrode 110 and the conductive portion 130 of the second electrode 120 are spaced apart at one end away from the heat-insulating space 401, and the spacing distance is greater than the distance between the discharge ends 140 of the first electrode 110 and the second electrode 120. For example, the conductive portion 130 of the first electrode 110 and the conductive portion 130 of the second electrode 120 are spaced apart at a certain distance along the radial direction of the heating pot body 10 at one end away from the discharge end 140, and the spacing distance is greater than the lateral width of the insulating heat-insulating body 400. For another example, the conductive portions 130 of the first electrode 110 and the second electrode 120 are spaced apart at a predetermined distance in the axial direction of the heating pot body 10 at one end away from the discharge end 140, and are connected to an external power source (not shown) at a height position staggered in the axial direction of the heating pot body 10.

[0067] In some embodiments, the heating module 1100 may be provided with an insulating structure 411 in the interval between the conductive parts 130 to enhance insulation. The insulating structure 411 may be connected to the insulating and heat-insulating body 400 and formed integrally, or may be provided separately and connected to the heating module 1100 by means of snap connection, screw connection, bonding, etc. For example, the insulating structure 411 may be in the form of a convex rib, an annular ring, a structural column, etc.

[0068] In some embodiments, an insulating member (not shown) may be provided at the connection between the conductive part 130 and the power source (not shown) to further improve the insulation reliability of the high voltage connection of the conductive part 130. For example, the insulating member may be a structure nested or inserted in the conductive part 130, or, for example, the insulating member may be formed by sealing and potting at the connection between the conductive part 130 and the power source (not shown).

[0069] See also Figure 6 and Figure 7 In some embodiments, the heating pot body 10 has an opening 102 opposite to the pot bottom 11 of the heating pot body 10, the conductive portion 130 includes a first conductive segment 131, a second conductive segment 132 and a third conductive segment 133 connected in sequence, one end of the first conductive segment 131 is connected to the discharge end 140 and the other end thereof extends from the discharge end 140 toward the opening 102, the second conductive segment 132 extends along the radial direction of the heating pot body 10, and the third conductive segment 133 extends from the second conductive segment 132 in a direction away from the opening 102.

[0070] In this way, the conductive part 130 extends a certain distance toward the opening 102 and then extends radially along the heating pot body 10, and then turns again to extend in a direction away from the opening 102, so that the high temperature heat of the first electrode 110 and the second electrode 120 is fully retained at the bottom of the heating pot body 10, reducing heat conduction to the outside and improving heat utilization.

[0071] Specifically, in this embodiment, the pot 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 and the second electrode 120 can abut against the pot bottom surface 1031, or against the outer peripheral surface 1032 or the connection between the pot bottom surface 1031 and the outer peripheral surface 1032.

[0072] The first conductive segment 131 is located in the heat-insulating space 401, the second conductive segment 132 is arranged through the insulating and heat-insulating body 400, and the third conductive segment 133 is located outside the heat-insulating space 401 and extends from the second conductive segment 132 in a direction away from the opening 102. The first conductive segment 131 is connected to the discharge end 140 and can be arranged close to the outer peripheral surface 1032 of the side wall 12. An angle similar to the outer contour angle of the insulating and heat-insulating body 400 can be formed between the first conductive segment 131, the second conductive segment 132 and the third conductive segment 133, so that the space occupied by the conductive portion 130 is reduced while the length of the bottom electrode is extended, thereby reducing the volume of the heating module 1100, which is conducive to miniaturization. The second conductive segment 132 can penetrate the insulating and heat-insulating body 400 in the radial direction of the heating pot body 10. The first conductive segment 131 and the third conductive segment 133 can be distributed on both sides of the same wall surface of the insulating and heat-insulating body 400 in the radial direction of the heating pot body 10, so that it is not easy to break down between the first conductive segment 131 and the third conductive segment 133. The conductive portion 130 and the discharge end portion 140 may be integrally formed of the same material.

[0073] The conductive part 130 can be made of metal material, and 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. The surface of the conductive part 130 can be coated with an insulating material to prevent discharge between the conductive parts 130 or between the conductive part 130 and other charged structures.

[0074] See also Figure 4 , Figure 5 and 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 extends along the radial direction of the heating pot body 10, and the second conductive segment 132 extends from the first conductive segment 131 in a direction away from the opening 102.

[0075] In this way, the first conductive segment 131 extends radially along the heating pot body 10, and the second conductive segment 132 extends from the first conductive segment 131 in a direction away from the opening 102, so that the heat of the arc formed by discharge between the discharge ends 140 can be fully retained at the bottom of the heating pot body 10, reducing outward heat conduction and improving heat utilization.

[0076] Specifically, the aerosol-forming substrate 20 may enter the accommodating chamber 101 through the opening 102, the aerosol-forming substrate 20 may be smeared on the pot bottom 11 and the side wall 12, the aerosol-forming substrate 20 may be poured or injected into the pot bottom 11, or the aerosol-forming substrate 20 may be directly placed on the pot bottom 11 by a handheld or transfer tool. The aerosol generated by the atomization of the aerosol-forming substrate 20 may flow out of the accommodating chamber 101 through the opening 102.

[0077] The discharge end 140 can be arranged at the pot bottom surface 1031, the outer peripheral surface 1032 or the connection between the pot bottom surface 1031 and the outer peripheral surface 1032. The first conductive segment 131 extends from the discharge end 140 to the outer periphery of the heating pot body 10 and passes through the insulating heat insulator 400. The direction in which the first conductive segment 131 extends can be along the radial direction of the heating pot body 10 to shorten the length of the first conductive segment 131 passing through the insulating heat insulator 400. The second conductive segment 132 can connect the end of the first conductive segment 131 extending outside the insulating space 401 and the second conductive segment 132 is located outside the insulating space 401. The second conductive segment 132 extends from the end of the first conductive segment 131 away from the discharge end 140 in a direction away from the opening 102. The distal end of the second conductive segment 132 can be away from the heating pot body 10 and connected to an external power supply (not shown). By setting the conductive portion 130 to be bent at the insulating heat insulator 400, the volume of the heating module 1100 can be reduced while ensuring the insulation strength.

[0078] See also Figure 5 and Fig. 9 In some embodiments, along the tangent direction of the heating pot body 10 , the cross-sectional area of ​​the first conductive segment 131 is less than or equal to the cross-sectional area of ​​the discharge end 140 .

[0079] 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 discharge area of ​​the discharge end 140 can be increased without increasing the accommodating space of the conductive portion 130, thereby improving the discharge intensity of the discharge end 140 and the arc formation efficiency.

[0080] Specifically, the first electrode 110 and the second electrode 120 may be distributed on both sides of the heating pot body 10 along the radial direction of the heating pot body 10, and the first electrode 110 and the second electrode 120 are spaced apart from the heating pot body 10 and / or the heat-insulating space 401 and / or the insulating heat-insulating body 400 along the tangential end face of the heating pot body 10. The discharge ends 140 of the first electrode 110 and the second electrode 120 are spaced apart from the heating pot body 10 along the tangential cross section of the heating pot body 10, and the discharge ends 140 are discharged along the shortest line of the pot bottom surface 1031 to generate an arc. The first conductive segment 131 may be thinner and narrower than the discharge end 140. Appropriately increasing the cross-sectional area of ​​the discharge end 140 along the tangential direction of the heating pot body 10 can increase the effective discharge end face. Appropriately reducing the cross-sectional area of ​​the first conductive segment 131 is conducive to the first conductive segment 131 being arranged in the insulating heat-insulating body 400.

[0081] 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.

[0082] In some embodiments, the side of the discharge end 140 facing the outer surface 103 of the heating pot body 10 may form a curved surface that fits the outer surface 103 of the heating pot body 10, such as Figure 5 It can also be said that the curvature radius of the curved surface formed by the discharge end 140 on the side facing the outer surface 103 of the heating pot body 10 is consistent with or close to the curvature radius of the outer surface 103 closest to the discharge end.

[0083] See also Figure 6-Figure 8 In some embodiments, the shortest connection line between the first electrode 110 and the second electrode 120 passes through the bottom 11 of the heating pot 10 .

[0084] Thus, the shortest connection line between the first electrode 110 and the second electrode 120 passes through the bottom 11 of the heating pot 10 , so that the arc is generated at the bottom 11 , reducing the probability of the arc breaking down along the circumference of the heating pot 10 and improving the heating efficiency.

[0085] It should be noted that the first electrode 110 and the second electrode 120 will discharge between the two ends with the shortest distance when power is supplied. To ensure that the arc is generated between the discharge ends 140 of the first electrode 110 and the second electrode 120, it is necessary to set the connection line between the discharge ends 140 of the first electrode 110 and the second electrode 120 as the shortest connection line. It should also be noted that the shortest connection line refers to the shortest connection line of the discharge ends 140 in the air medium, and the shortest connection line will not pass through the wall of the heating pot body 10. It can also be said that the shortest connection line is the shortest line segment between the first electrode 110 and the second electrode 120 on the outer surface 103 of the heating pot body 10. For example, Figure 6 In the embodiment shown, the MM line is the shortest line between the first electrode 110 and the second electrode 120, and the arc is generated on the MM line. Figure 7 In the embodiment shown, NN is the shortest line between the first electrode 110 and the second electrode 120, and the arc is generated on the NN line. The MM line and the NN line are both line segments on the pan bottom surface 1031.

[0086] In some embodiments, the pot bottom 11 is a round bottom structure, and the shortest connection line between the first electrode 110 and the second electrode 120 passes through the pot bottom 11 of the heating pot body 10. Figure 6 MM connection and Figure 8 The minimum distance between the first electrode 110 and the second electrode 120 in the circumferential direction of the heating pot body 10 is greater than the distance of the line connecting the discharge end 140 through the pot bottom 11. For example, Figure 3The LL line shown is a line connecting the discharge ends 140 of the first electrode 110 and the second electrode 120 along the circumference of the heating pot body 10, and the length of the MM line is less than the length of the LL line. The discharge ends 140 of the first electrode 110 and the second electrode 120 are closer to the central axis of the heating pot body 10 or the center of the pot bottom 11 relative to the conductive portion 130.

[0087] Please continue reading Figure 6-Figure 8 In some embodiments, the first electrode 110 and the second electrode 120 are arranged along the radial direction of the heating pot body 10 , and the shortest connecting line passes through the center of the pot bottom 11 of the heating pot body 10 .

[0088] In this way, the first electrode 110 and the second electrode 120 pass through the center of the pot bottom 11 along the shortest connecting line of the outer surface 103 of the heating pot body 10, ensuring that the arc is generated at the center of the pot bottom 11, which is beneficial to the uniformity of heating and the stability of the heating position.

[0089] Specifically, the first electrode 110 and the second electrode 120, whose discharge end 140 discharges to form an arc when energized, form an electrode pair, and the electrode pair is arranged along the radial direction of the heating pot body 10, and the first electrode 110 and the second electrode 120 are distributed at both ends of the same radial direction of the heating pot body 10. As described above, the shortest connecting line of the first electrode 110 and the second electrode 120 is the shortest connecting line segment along the outer surface 103 of the heating pot body 10 between the discharge end 140 of the first electrode 110 and the second electrode 120. When the first electrode 110 and the second electrode 120 are energized, they discharge along the shortest connecting line to generate an arc, and the shortest connecting line passes through the center of the pot bottom 11, so that the arc can be generated at the center of the pot bottom 11, or formed near the center of the pot bottom 11, or the formed arc can pass through the center of the pot bottom surface 1031.

[0090] The number of electrode pairs can be one pair, two pairs, three pairs, three pairs or more. The multiple pairs of first electrodes 110 and second electrodes 120 can be distributed at intervals along the circumference of the heating pot body 10. Further, the multiple pairs of first electrodes 110 and second electrodes 120 can be evenly distributed along the circumference of the heating pot body 10. The shortest connecting line of each pair of first electrodes 110 and second electrodes 120 passes through the center of the pot bottom 11 of the heating pot body 10.

[0091] See also Figure 6 and Figure 8 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 is a round bottom structure, and the first electrode 110 and the second electrode 120 are both arranged on the side wall 12 .

[0092] In this way, by arranging the first electrode 110 and the second electrode 120 on the side wall 12 , the insulation can be strengthened, and the discharge ends 140 are arranged at intervals on both sides of the pot bottom 11 , so that the formed arc can easily cover the pot bottom surface 1031 .

[0093] Specifically, the pot bottom 11 and the side wall 12 define a receiving cavity 101. The side wall 12 may 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 side wall 12 may be equal, or the thickness range of the pot bottom 11 and the side wall 12 may be the same. The thickness of the pot bottom 11 and the side wall 12 may also be inconsistent.

[0094] The pot bottom 11 is a round bottom structure, and the pot bottom surface 1031 is an arc surface protruding outward, or the pot bottom surface 1031 includes an arc surface protruding outward and a flat surface partially located at the center of the pot bottom 11. In this embodiment, the curvature radius of the pot bottom surface 1031 is not limited.

[0095] As described above, the pot bottom 11 is a round bottom structure, and the outer contour of the heating pot body 10 is not limited to a circular, oval, square, olive, racetrack or other polygons with curved edges. Exemplarily, the cross-sectional shape of the outer contour of the heating pot body 10 can be circular or nearly circular, the outer diameter of the heating pot body 10 ranges from 5 mm to 20 mm (including the end points), and 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.

[0096] The discharge end 140 and the conductive portion 130 of the first electrode 110 and the second electrode 120 can be uniformly arranged outside the side wall 12 and can be opposite to each other along the radial direction of the heating pot body 10. The first electrode 110 and the second electrode 120 can have at least a portion against or in contact with the side wall 12, and the discharge end 140 can be arranged close to the pot bottom 11. Figure 6 As shown, the discharge ends 140 of the first electrode 110 and the second electrode 120 can abut against or fit the outer surface 103 of the heating pot body 10. Figure 8 As shown, the discharge ends 140 of the first electrode 110 and the second electrode 120 may also be close to the outer surface 103 of the heating pot body 10 and form a certain gap with the outer surface 103 .

[0097] See also Fig.11 In some embodiments, the heating module 1100 further includes a magnetic member 50, which is spaced apart from the heating pot body 10, and is used to make the electric arc rotate around the center of the pot bottom 11 of the heating pot body 10. In this embodiment, the first electrode 110 is close to or abuts against the side wall 12 of the heating pot body 10, and the second electrode 120 is close to or abuts against the center of the pot bottom 11.

[0098] In this way, by setting the magnetic part 50 to make the electric arc rotate relative to the center of the pot bottom 11, 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 warm up and the temperature distribution more uniform, and the heating temperature of the aerosol forming matrix 20 at each position of the pot bottom 11 is more uniform and has better synchronization.

[0099] Specifically, the discharge end 140 of the first electrode 110 may be annular, and the discharge end 140 of the first electrode 110 may abut against the pot bottom surface 1031, or may abut against the outer peripheral surface 1032 or the connection between the pot bottom surface 1031 and the outer peripheral surface 1032. The number of the first conductive segments 131 may be two or more, and the first conductive segments 131 of the first electrode 110 may be distributed at intervals on the side wall 12 along the circumferential direction of the heating pot body 10. The discharge end 140 of the first electrode 110 may also be arranged close to the outer surface 103, and a certain gap is formed between the discharge end 140 and the outer surface 103.

[0100] The discharge end 140 of the second electrode 120 may be disc-shaped and may be attached to the center of the pot bottom surface 1031 or embedded in the center of the pot bottom 11. The discharge end 140 of the second electrode 120 may also be arranged close to the pot bottom surface 1031 and spaced from the pot bottom surface 1031 by a certain gap.

[0101] In some extended embodiments, the discharge ends 140 of the first electrode 110 and the second electrode 120 may both be in the form of a film and fixed to the outer surface 103 of the heating pot body 10 .

[0102] In some embodiments, Fig.11 As shown, the conductive portion 130 of the first electrode 110 includes a first conductive segment 131, a second conductive segment 132, and a third conductive segment 133 connected in sequence, one end of the first conductive segment 131 is connected to the discharge end 140 and the other end thereof extends from the discharge end 140 toward the direction of the opening 102, the second conductive segment 132 extends along the radial direction of the heating pot body 10, and the third conductive segment 133 extends from the second conductive segment 132 toward a direction away from the opening 102. The first conductive segment 131 of the first electrode 110 may be close to the outer peripheral surface 1032. The second conductive segment 132 of the first electrode 110 may pass through the insulating and heat-insulating body 400 along the radial direction of the heating pot body 10. The first conductive segment 131 and the third conductive segment 133 of the first electrode 110 may be distributed on both sides of the same wall surface of the insulating and heat-insulating body 400 along the radial direction of the heating pot body 10, so that it is not easy to break down between the first conductive segment 131 and the third conductive segment 133.

[0103] In other embodiments, the conductive portion 130 of the first electrode 110 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 extends in the radial direction of the heating pot body 10, and the second conductive segment 132 extends from the second conductive segment 132 in a direction away from the opening 102. The second electrode 120 is disposed on the pot bottom 11. The first conductive segment 131 can be disposed in the insulating body 400 in the radial direction of the heating pot body 10. The second conductive segment 132 can connect the end of the first conductive segment 131 extending outside the insulation space 401 and the second conductive segment is located outside the insulation space 401. The second conductive segment 132 extends from one end of the first conductive segment 131 away from the discharge end 140 in a direction away from the opening 102, and the distal end of the second conductive segment 132 can be away from the heating pot body 10 and connected to an external power source (not shown).

[0104] See also Figure 6 In some embodiments, the thickness H of the pot bottom 11 is less than the thickness D of the side wall 12 .

[0105] In this way, by setting the thickness of the bottom and the side wall 12 of the heating pot body 10 within a reasonable range, and further setting the thickness H of the pot bottom 11 to be smaller than the thickness D of the side wall 12, the heating efficiency and the heating rate can be improved.

[0106] Specifically, the thickness H of the pot bottom 11 ranges from 0.4 mm to 1.0 mm (inclusive). Further, the thickness D of the side wall 12 can range from 0.5 mm to 1.0 mm (inclusive), and the thickness H of the pot bottom 11 is selected to be smaller than the thickness D of the side wall 12 .

[0107] Specifically, the side wall 12 may be of uniform thickness, and the thickness D of the side wall 12 may also vary in a gradient or slope. The side wall 12 may also be of uniform thickness over a large area, with the thickness of the local wall decreasing or increasing. Exemplarily, the thickness D of the side wall 12 may be 0.5 mm-1.0 mm, 0.6 mm-0.9 mm, 0.63 mm-0.88 mm, 0.7 mm-0.9 mm, 0.75 mm-0.8 mm, etc. For another example, the thickness D of the side wall 12 may be 0.5 mm, 0.54 mm, 0.65 mm, 0.72 mm, 0.81 mm, 0.97 mm, 1.0 mm.

[0108] The thickness H of the pot bottom 11 is less than the thickness D 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 thinned 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 uniform as a whole. The pot bottom 11 may also be thinned locally 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 unequal, the thickness may vary smoothly to avoid a discontinuity on the surface of the heated pot body 10. Exemplarily, the thickness H 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 H of the pot bottom 11 may be 0.4 mm, 0.5 mm, 0.68 mm, 0.75 mm, 0.88 mm, 0.96 mm, 1.0 mm, etc., and the thickness of the thinnest part of the pot bottom 11 may be 0.4 mm, 0.52 mm, 0.65 mm, 0.73 mm, 0.8 mm, etc.

[0109] See also Figure 8 In some embodiments, an infrared radiation film 40 is disposed on the inner surface of the insulating body 400 .

[0110] In this way, by providing the infrared radiation film 40 on the inner surface of the insulating and heat-insulating body 400 , the heat-insulating ability of the insulating and heat-insulating body 400 can be enhanced.

[0111] 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 to the accommodating cavity 101 by heating the bottom 11 (and / or part of the side wall 12) of the pot body 10 in the form of infrared radiation or heat transfer, thereby heating the atomized aerosol-forming matrix 20 to generate aerosol. The arc heat is also radiated to the outside of the heating pot body 10 in the form of infrared radiation.

[0112] Specifically, the inner surface of the insulating and heat-insulating body 400 is the surface of one side of the insulating and heat-insulating body 400 facing the heating pot body 10 or the discharge end 140. The infrared radiation film 40 may be a coating attached to the inner surface of the insulating and heat-insulating body 400. The coating material of the infrared radiation film 40 may be a metal oxide with a high infrared radiation reflectivity. For example, the infrared radiation film 40 may be made of one or more materials such as ferric oxide, manganese dioxide, cobalt oxide, and copper oxide. The infrared radiation film 40 may also be made of a material with a high infrared radiation absorption rate, and may also use a combination of reflection and heat absorption to reduce the heat transfer of infrared radiation to the outside, thereby reducing the temperature rise outside the insulating and heat-insulating body 400.

[0113] See also 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 .

[0114] 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.

[0115] Specifically, the nozzle assembly 300 can be arranged on the top of the heating pot body 10, and can be extruded and assembled with the heating pot body 10 at the opening. The heating pot body 10 can form a flange connected to the side wall 12 and extending in a different direction from the side wall 12 at the opening 102. The sealing member 30 can cover the flange to seal the assembly gap between the nozzle assembly 300 and the flange. The nozzle assembly 300 can cover the opening 102, so that the aerosol generated in the accommodating cavity 101 overflows from the opening 102 and is inhaled through the nozzle assembly 300.

[0116] Please refer again Figure 1 and Fig.10 The aerosol generating device 1000 of the embodiment of the present application includes the heating module 1100 described in any of the above embodiments.

[0117] Specifically, the aerosol generating device 1000 includes a housing 200, and the housing 200 is used to install a heating module 1100. The heating module 1100 can be accommodated in the housing 200, and the heating pot 10 can be detachably connected to the housing 200. The nozzle assembly 300 can be arranged at one end of the housing 200.

[0118] The aerosol generating device 1000 of the embodiment of the present application extends from the discharge end 140 of the first electrode 110 and the second electrode 120 in a direction away from the heating pot body 10, ensuring that the first electrode 110 and the second electrode 120 discharge between the discharge end 140, so that the arc heat can more effectively heat the pot bottom 11. In addition, the conductive portion 130 of the first electrode 110 and the second electrode 120 can change the extension direction at least once to adapt to the internal structure of the aerosol generating device 1000, reduce the installation space, and have a compact structure, which is conducive to miniaturization of the product.

[0119] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "certain embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiments or examples 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 one or more embodiments or examples in a suitable manner.

[0120] 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 spirit 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, It is characterized in that include: A heating pot body, wherein the heating pot body is formed with a receiving cavity for receiving an aerosol-forming substrate; A first electrode and a second electrode, wherein the first electrode and the second electrode are arranged outside the accommodating cavity at an interval, the first electrode and / or the second electrode include a discharge end and a conductive portion connected to the discharge end, the conductive portion extends from the discharge end along the radial direction of the heating pot body or in a direction away from the bottom of the heating pot body, and an arc is formed between the discharge ends of the first electrode and the second electrode when the first electrode and the second electrode are energized to heat the heating pot body.

2. The heating module according to claim 1, It is characterized in that The heating pot body has an opening opposite to the bottom of the heating pot body, the conductive portion includes a first conductive segment, a second conductive segment and a third conductive segment connected in sequence, one end of the first conductive segment is connected to the discharge end and the other end thereof extends from the discharge end toward the direction of the opening, the second conductive segment extends along the radial direction of the heating pot body, and the third conductive segment extends from the second conductive segment toward a direction away from the opening.

3. The heating module according to claim 1, It is characterized in that The heating pot body has an opening opposite to the bottom of the heating pot body, the conductive portion 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 extends along the radial direction of the heating pot body, and the second conductive segment extends from the first conductive segment in a direction away from the opening.

4. The heating module according to claim 3, It is characterized in that Along the tangent direction of the heating pot body, the cross-sectional area of ​​the first conductive segment is smaller than or equal to the cross-sectional area of ​​the discharge end.

5. The heating module according to any one of claims 1 to 4, It is characterized in that The heating module also 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. The conductive part is passed through the insulating insulator.

6. The heating module according to claim 1, It is characterized in that The shortest line between the first electrode and the second electrode passes through the bottom of the heating pot; or, the first electrode and the second electrode are arranged opposite to each other along the radial direction of the heating pot, and the shortest line passes through the center of the bottom of the heating pot.

7. The heating module according to claim 6, It is characterized in that The heating pot body comprises a side wall and a pot bottom connected to the side wall, the pot bottom is a round bottom structure, and the first electrode and the second electrode are both arranged on the side wall.

8. The heating module according to claim 7, It is characterized in that The thickness of the pot bottom is smaller than the thickness of the side wall.

9. The heating module according to claim 5, It is characterized in that The inner surface of the insulating body is provided with an infrared radiation film.

10. An aerosol generating device, It is characterized in that A heating module comprising any one of claims 1 to 9.

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