Heating module and aerosol generating device

Abstract

A heating module (1100) and an aerosol generating device (1000). The heating module (1100) of the present application embodiment includes a heating pot body (10), a first electrode (110), and a second electrode (120). Among these, a receiving cavity (101) for receiving an aerosol forming substrate (20) is formed in the heating pot body (10). The first electrode (110) and the second electrode (120) are spaced apart from each other outside the receiving cavity (101), and the first electrode (110) and / or the second electrode (120) include a discharge end (140) and a conductive part (130) connected to the discharge end (140), and the conductive part (130) extends from the discharge end (140) along the radial direction of the heating pot body (10) or in a direction away from the bottom (11) of the heating pot body (10), and when current is applied to the first electrode (110) and the second electrode (120), 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).

Description

Technology Field

[0001] Cross-reference of related applications

[0002] This application claims priority to Chinese patent application 202420156325.8 filed on January 22, 2024, the entire contents of which are incorporated herein by reference.

[0003] This application relates to the field of aerosol generating device technology, and in particular to heating modules and aerosol generating devices. Background Technology

[0004] An aerosol generating device can be used to form an aerosol from an aerosol forming substrate by heating the substrate and using a heating non-combustion method. In the relevant technology, the aerosol generating device includes a heating vessel body and a pair of electrodes, and the aerosol forming substrate can be accommodated within the heating vessel body. The pair of electrodes discharges outside the heating vessel body to form an arc, and effectively utilizing the arc heat to heat the heating vessel body is a key technical challenge. The problem to be solved

[0005] The present application provides a heating module and an aerosol generating device, and is intended to solve the problem of low utilization efficiency of arc heat in related technologies. means of solving the problem

[0006] To solve the above technical problem, the technical solution adopted by the present application is to provide a heating module and an aerosol generating device.

[0007] The heating module of the embodiment of the present application includes a heating pot body, a first electrode, and a second electrode, wherein a receiving cavity for receiving an aerosol-forming substrate is formed in the heating pot body. The first electrode and the second electrode are spaced apart from each other outside the receiving cavity, and the first electrode and / or the second electrode includes a discharge end and a conductive part connected to the discharge end, the conductive part 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 when current is applied to the first electrode and the second electrode, an arc is formed between the discharge ends of the first electrode and the second electrode to heat the heating pot body.

[0008] In the aerosol generating device of the present application embodiment, the first electrode and the second electrode are spaced apart from each other outside the receiving cavity, and the conductive portions of the first electrode and the second electrode extend from the discharge end in the radial direction of the heating pot body or in a 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, and ensuring that the arc heat is more concentrated at the bottom of the pot, thereby effectively heating the heating pot body and improving the utilization rate of the arc heat.

[0009] In one embodiment, the heating pot body has an opening facing the bottom of the heating pot body, and the conductive section includes a first conductive section, a second conductive section, and a third conductive section connected in sequence, one end of the first conductive section is connected to a discharge end and the other end extends from the discharge end toward the opening, the second conductive section extends along the radial direction of the heating pot body, and the third conductive section extends from the second conductive section toward the opening.

[0010] In this way, the conductive portion is extended a certain distance in the direction of the opening, then extended along the radial direction of the heating pot body, and then switched to extending away from the opening, thereby reducing the volume of the heating module and allowing the high-temperature heat of the first electrode and the second electrode to remain sufficiently at the bottom of the heating pot body, thereby reducing heat conduction to the outside and improving the heat utilization rate.

[0011] In one embodiment, the heating pot body has an opening facing the bottom of the heating pot body, and the conductive portion includes a first conductive section and a second conductive section, the first conductive section connects the second conductive section and the discharge end, the first conductive section extends along the radial direction of the heating pot body, and the second conductive section extends from the first conductive section in a direction away from the opening.

[0012] In this way, the first conductive section is extended along the radial direction of the heating pot body, and the second conductive section is extended from the second conductive section in a direction away from the opening, thereby allowing the heat of the arc discharged between the discharge ends to remain sufficiently at the bottom of the heating pot body, thereby reducing heat conduction to the outside and improving the heat utilization rate, and at the same time, it is advantageous to reduce the space occupied by the conductive section, which is advantageous for miniaturizing the device.

[0013] In one embodiment, along the tangential direction of the heating pot body, the cross-sectional area of ​​the first conductive section is smaller than or equal to the cross-sectional area of ​​the discharge end.

[0014] In this way, by setting the cross-sectional area in the tangential direction of the heating pot body of the first conductive section to be smaller than that of the discharge end, the discharge area of ​​the discharge end can be increased without increasing the accommodation space of the conductive section, thereby improving the discharge intensity and arc formation efficiency of the discharge end.

[0015] In one embodiment, the heating module further includes an insulating body, an insulating space is formed in the insulating body, the bottom of the heating pot body is accommodated within the insulating space, the discharge ends of the first electrode and the second electrode are both located within the insulating space, and the conductive part is installed through the insulating body.

[0016] In this way, by installing an insulating body outside the discharge ends of the first and second electrodes, the arc is formed within the insulating space defined by the outer surface of the heating pot body and the insulating body, thereby strengthening insulation protection for the discharge ends and improving the insulation effect of the aerosol generating device.

[0017] In one embodiment, the shortest path between the first electrode and the second electrode passes through the bottom of the heating pot body.

[0018] In this way, the shortest path between the first electrode and the second electrode passes through the bottom of the heating pot body, thereby causing an arc to be generated at the bottom of the pot, which reduces the probability of insulation breakdown along the circumferential direction of the heating pot body and improves heating efficiency.

[0019] In one embodiment, the first electrode and the second electrode are arranged along the radial direction of the heating pot body, and the shortest path passes through the center of the bottom of the heating pot body.

[0020] In this way, the shortest path along the outer surface of the heating pot body of the first electrode and the second electrode passes through the center of the bottom of the pot, thereby ensuring that the arc is generated at the center of the bottom of the pot, which is advantageous for the uniformity of heating and the stability of the heating position.

[0021] In one embodiment, the heating pot body includes a side wall and a pot bottom connected to the side wall, the pot bottom has a round bottom structure, and both the first electrode and the second electrode are installed on the side wall.

[0022] In this way, insulation can be strengthened by installing the first electrode and the second electrode on the side wall, and the discharge end is installed spaced apart on both sides of the bottom of the pot so that the formed arc can easily cover the bottom surface of the pot.

[0023] In one embodiment, the thickness of the bottom of the pot is smaller than the thickness of the side wall.

[0024] 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, heating efficiency and the rate of temperature increase can be improved.

[0025] In one embodiment, an infrared radiation film is installed on the inner surface of the insulating body.

[0026] In this way, the thermal insulation capacity of the insulating material can be enhanced by installing an infrared radiation film on the inner surface of the insulating material.

[0027] The aerosol generating device of the embodiment of the present application includes a heating module of any one of the above embodiments.

[0028] Additional aspects and advantages of the present application will be presented in part in the description below, and in part will become apparent from the description below or will be known through the practice of the present application. Effects of the invention

[0029] The beneficial effects of the embodiments of the present application are distinguished from the prior art. The aerosol generating device provided in the embodiments of the present application ensures that the first electrode and the second electrode discharge between the discharge ends by extending the conductive portions of the first electrode and the second electrode away from the heating pot body, thereby allowing the arc heat to heat the bottom of the pot more effectively. In addition, the conductive portions of the first electrode and the second electrode change their extension direction at least once to adapt to the internal structure of the aerosol generating device, thereby reducing the installation space and making the structure compact, which is advantageous for miniaturizing the product. Brief explanation of the drawing

[0030] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of embodiments combined with the drawings below, among which: FIG. 1 is a schematic diagram of the overall structure of an aerosol generating device provided in the first embodiment of the present application. FIG. 2 is a schematic diagram of the structure of a heating module provided in an embodiment of the present application. FIG. 3 is a schematic diagram of the planar viewpoint structure of a heating module provided in the first embodiment of the present application. FIG. 4 is a schematic diagram of the structure of a heating module provided in another embodiment of the present application. FIG. 5 is a schematic diagram of the planar viewpoint structure of a heating module provided in another embodiment of the present application. Figure 6 is a schematic cross-sectional view of the heating module of Figure 3 cut along the AA direction. FIG. 7 is a schematic cross-sectional view of a heating module provided in another embodiment of the present application. Figure 8 is a schematic cross-sectional view of the heating module of Figure 5 cut along the BB direction. FIG. 9 is a schematic diagram of the structure of the first electrode or the second electrode provided in the first embodiment of the present application. FIG. 10 is a schematic diagram of the exploded structure of an aerosol generating device provided in one embodiment of the present application. FIG. 11 is a schematic diagram of the cross-sectional structure of a heating module provided in another embodiment of the present application. Specific details for implementing the invention

[0031] The embodiments of the present application are described in detail below. Examples of the embodiments are provided in the drawings, and identical or similar reference numerals from beginning to end indicate identical or similar elements or elements having identical or similar functions. The embodiments described below with reference to the drawings are illustrative and are intended only to interpret the present application and should not be understood as limiting the present application.

[0032] In the description of this application, the orientation or positional relationship indicated by terms such as "center," "longitudinal," "transverse," "length," "width," "thickness," "top," "bottom," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," "clockwise," "counterclockwise," etc., is based on the orientation or positional relationship illustrated in the drawings and is intended merely to describe and simplify the description of this application; it does not indicate or imply that the indicated device or element must have a specific orientation and be configured and operated in a specific orientation, and therefore should not be understood as limiting this application. Furthermore, the terms "first" and "second" are used merely for illustrative purposes and should not be understood as indicating or implying relative importance or implying the quantity of the indicated technical features. Accordingly, the feature limited by "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of this application, the meaning of "plural" is two or more unless otherwise clearly and specifically limited.

[0033] In the description of this application, the terms “installation,” “connection,” and “connection” are to be understood in a broad sense, for example, they may be fixed connections, detachable connections, or integral connections; they may be mechanical connections, electrical connections, or capable of communicating with each other; they may be direct connections or indirect connections through an intermediate medium, or they may be communication within two elements or an interactive relationship between two elements. Those skilled in the art will understand the specific meaning of the above terms in this application according to the specific circumstances.

[0034] In this application, unless otherwise explicitly specified or limited, a first feature being on the "upper" or "lower" side of a second feature may include direct contact between the first feature and the second feature, or contact between the first feature and the second feature through another feature between them without direct contact. Furthermore, a first feature being on the "upper," "upper," and "upper surface" side of a second feature may include the first feature being on the normal and diagonal side of the second feature, or simply indicate that the horizontal height of the first feature is higher than that of the second feature. A first feature being on the "lower," "lower," and "lower surface" side of a second feature may include the first feature being on the normal and diagonal side of the second feature, or simply indicate that the horizontal height of the first feature is lower than that of the second feature.

[0035] The following disclosure provides many different embodiments or examples for implementing different structures of the present application. To simplify the disclosure of the present application, specific exemplary parts and settings are described below. Of course, these 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; such repetition is for the purpose of simplification and clarification only and does not imply a relationship between the various embodiments and / or settings discussed. Furthermore, while the present application provides examples of various specific processes and materials, those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0036] 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 capable of generating an aerosol using an aerosol forming substrate (20). The aerosol forming substrate (20) is a product of a flower, stem, or leaf of a plant that can be processed and heated to generate an aerosol. An aerosol is a colloid formed by dispersing solid or liquid particles in a gaseous medium. A user may inhale the aerosol through the mouth or nose into the oral cavity, nasal cavity, or lungs, and the aerosol inhaled into the user's respiratory system may be used for various purposes such as food, medicine, health care, and entertainment.

[0037] The heating module (1100) of the present application embodiment includes a heating pot body (10), a first electrode (110), and a second electrode (120), wherein a receiving cavity (101) for receiving an aerosol-forming substrate (20) is formed in the heating pot body (10). The first electrode (110) and the second electrode (120) are spaced apart from each other outside the receiving cavity (101), and the first electrode (110) and / or the second electrode (120) include a discharge end (140) and a conductive part (130) connected to the discharge end (140), and the conductive part (130) extends from the discharge end (140) along the radial direction of the heating pot body (10) or in a direction away from the bottom (11) of the heating pot body (10), and when current is applied to the first electrode (110) and the second electrode (120), 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).

[0038] In the aerosol generating device (1000) of the present application embodiment, the first electrode (110) and the second electrode (120) are spaced apart from each other outside the receiving cavity (101), and the conductive portion (130) of the first electrode (110) and the second electrode (120) extends from the discharge end (140) in a radial direction toward the heating pot body (10) or in a direction away from the 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, and ensuring that the arc heat is more concentrated at the bottom (11), thereby effectively heating the heating pot body (10) and improving the utilization rate of the arc heat.

[0039] Specifically, the form of the aerosol-forming substrate (20) within the receiving cavity (101) may be a solid or semi-solid. For example, the aerosol-forming substrate (20) may be a cream or a gel, and a high-humidity cream or gel may be applied to the inner wall surface of the bottom of the pot (11). As another example, a completely solid aerosol-forming substrate (20) may be in the form of relatively finely broken lumps or pieces. The aerosol-forming substrate (20) may have a constant fluidity overall and may settle at the bottom of the heating pot body (10).

[0040] Referring to FIGS. 3 and 6, the bottom of the heating pot body (10) forms a pot bottom (11) as a closed structure. An opening (102) may be formed at one end of the heating pot body (10) facing 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) toward the pot bottom (11) is defined as the direction from top to bottom, and the direction from the center of the opening (102) toward 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 transverse direction of the heating pot body (10) and the aerosol generating device (1000) is perpendicular to the vertical direction, and the cross-sectional shape of the inner and outer contours of the heating pot body (10) includes, but is not limited to, circular, elliptical, square, rectangular, polygonal, and other polygons with chamfers or curved sides. For example, in this application, the cross-sectional shape of the inner and outer contours of the heating pot body (10) is described as circular, and the circumferential direction of the outer contour cross-section is the circumferential direction of the heating pot body (10).

[0041] It should be explained that arc discharge is a type of gas discharge phenomenon in which gas between pairs of electrodes is ionized under the action of a strong electric field to form plasma, i.e., 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 installed apart, and when a high voltage is applied to the first electrode (110) and the second electrode (120), the gas in the section between the first electrode (110) and the second electrode (120) is ionized to generate an arc. The heat from the arc can rapidly raise the heating pot body (10) to a relatively high temperature and heat and atomize the aerosol-forming substrate (20) inside the receiving cavity (101) to form an aerosol. As can be understood, during the discharge process, the temperature of the first electrode (110) and the second electrode (120) also rises, providing a constant amount of heat for the atomization of the aerosol-forming substrate (20).

[0042] Referring to FIGS. 6 and FIGS. 7, in some embodiments, the bottom (11) of the heating pot body (10) is a flat bottom structure or a round bottom structure.

[0043] Specifically, the outer surface (103) of the heating pot body (10) includes a bottom surface (1031) and an outer surface (1032) connected to the bottom surface (1031). The bottom surface (1031) faces away from the receiving cavity (101) and toward the insulating body (400). The outer surface (1032) is connected to the outer contour edge of the bottom surface (1031) and may extend upward from the bottom (11) to the opening (102) along the axial direction of the heating pot body (10).

[0044] As illustrated in FIG. 7, when the bottom of the pot (11) is a flat bottom structure, the entire bottom surface (1031) may be flat, or the bottom surface (1031) may include a flat surface and an arc-shaped surface at the outer contour edge. A certain chamfer may be formed at the connection between the bottom of the pot (11) and the side wall (12) to form an arc-shaped surface. One side of the bottom surface (1031) and the inner wall surface of the receiving cavity (101) may be flat and the other side may have a certain curvature.

[0045] As illustrated in FIG. 6, when the bottom of the pot (11) has a round bottom structure, the bottom of the pot (11) may protrude downward along the axial direction of the heating pot body (10). The inner and outer contours of the center of the bottom of the pot (11) both form an arc shape, and the connection between the bottom of the pot (11) and the side wall (12) is connected by an arc. The bottom surface (1031) may be entirely an arc surface, or the bottom surface (1031) may be flat at the center or edge and connected by an arc surface.

[0046] Compared to the shape of a relatively pointed bottom of the pot (11), if the bottom of the pot (11) has a flat bottom or round bottom structure, the uniformity of heat transfer is better and the contact area with the arc is relatively large.

[0047] Referring to FIGS. 2 to 4, the heating module (1100) of the embodiment of the present application includes an insulating body (400), an insulating space (401) is formed in the insulating body (400), the bottom of the pot (11) of the heating pot body (10) is accommodated 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), and the conductive part (130) is installed through the insulating body (400).

[0048] In the aerosol generating device (1000) of the present application embodiment, the first electrode (110) and the second electrode (120) form an arc outside the receiving cavity (101) to heat the aerosol generating substrate (20) and generate an aerosol. By installing an insulating body (400) outside the discharge end (140) of the first electrode (110) and the second electrode (120), the arc is formed within the insulating space (401) formed by the outer surface (103) of the heating pot body (10) and the insulating body (400), thereby strengthening the insulation protection for the discharge end (140) and improving the insulation effect of the aerosol generating device (1000).

[0049] Referring to FIGS. 4 and 6, the insulating body (400) may be a pot body structure, and the heating pot body (10) may be partially accommodated within the insulating body (400). The insulating body (400) may be installed below the heating pot body (10), and the insulating body (400) may cover a partial side wall (12) and wrap around the bottom of the pot (11). An insulating space (401) is formed in the insulating body (400), and the insulating space (401) may be formed by jointly defining the inner wall surface of the insulating body (400) and the bottom surface of the pot (1031). The discharge ends (140) of the first electrode (110) and the second electrode (120) are both located within an insulating space (401), and when current is applied to the first electrode (110) and the second electrode (120), an arc is generated by discharging within the insulating space (401), and the discharge ends (140) and the arc, which have high voltage and high temperature, can be isolated within the insulating space (401) by an insulating body (400).

[0050] In the insulating body (400), a corner or chamfer may be formed at the connection between the wall surface along the depth direction of the receiving cavity (101) and the wall surface facing the bottom of the pot (11), and the cross-sectional shape of the insulating body (400) may be close to a "U" shape. The insulating body (400) may continue downward along the depth direction of the receiving cavity (101) from the connection between the depth direction of the receiving cavity (101) and the wall surface facing the bottom of the pot (11), and the cross-sectional shape of the insulating body (400) may be close to an "H" shape.

[0051] The heating pot body (10) can be manufactured from a material with relatively good heat resistance, for example, the heating pot body (10) is manufactured from quartz, ceramic, or heat-resistant glass material. The first electrode (110) and the second electrode (120) can be manufactured from a heat-resistant material with good conductivity and may be a conductor or a semiconductor material. For example, the first electrode (110) and the second electrode (120) are manufactured from one or more of nickel-based alloys, iron-based alloys, copper alloys, zirconium, hafnium, tungsten, graphite, and carbon fibers. A set of the first electrode (110) and the second electrode (120), which generate an arc by discharging when current is applied, may be manufactured from the same or different materials.

[0052] The insulating body (400) can be manufactured from an insulating material with relatively good heat resistance, for example, the insulating body (400) is manufactured from materials such as quartz, ceramic, or heat-resistant glass. The heating pot body (10) transfers arc heat to the receiving cavity (101) to heat the aerosol-forming substrate (20), and the insulating body (400) isolates the arc to prevent high-voltage discharge from damaging other structural parts and reduces the transfer of arc heat to other structural parts.

[0053] The insulation reliability of the heating module (1100) is improved by installing the conductive part (130) through the insulating body (400).

[0054] Specifically, the first electrode (110) and the second electrode (120) can generate an arc by conducting high-voltage alternating current or high-voltage direct current. The first electrode (110) and the second electrode (120) are connected to a high-voltage power source, and the conductive portions (130) of the first electrode (110) and the second electrode (120) can each be connected to two output terminals of a transformer (not shown). The conductive portions (130) have a relatively high voltage during the discharge process, and when the first electrode (110) and the second electrode (120) are not conducting high voltage, the conductive portions (130) can maintain a physical connection with the power source.

[0055] A receiving groove (402) penetrating the insulating body (400) may be formed in the insulating body (400), and the conductive part (130) passes through the receiving groove (402) and enters the insulating space (401). The insulating body (400) shields the conductive part (130) from multiple directions to insulate and isolate the conductive part (130). The insulating body (400) can 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 body (400) can be fixedly connected to the first electrode (110) and the second electrode (120) through sintering, which is advantageous for modularizing the component and makes it easy to maintain the consistency of the relative positions of the first electrode (110) and the second electrode (120) during the usage cycle.

[0056] 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 far from the insulating space (401), and the spacing distance is greater than the distance between the discharge end (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 by a certain distance along the radial direction of the heating pot body (10) at one end far from the discharge end (140), and the spacing distance is greater than the transverse width of the insulating body (400). As another example, the first electrode (110) and the second electrode (120) conductive portion (130) are spaced apart by a predetermined distance in the axial direction of the heating pot body (10) at one end far from the discharge end (140), and are connected to an external power source (not shown) at a height position offset in the axial direction of the heating pot body (10).

[0057] In some embodiments, the heating module (1100) may have its insulation reinforced by installing an insulating structure (411) in a section separated from the conductive part (130). The insulating structure (411) may be integrally formed by connecting it to the insulating body (400), or it may be installed separately and connected to the heating module (1100) by means of interlocking connection, threaded connection, adhesive bonding, etc. For example, the insulating structure (411) may be in the form of a convex rib, an annular ring, a structural column, etc.

[0058] In some embodiments, an insulating member (not shown) may be installed at the connection between the conductive part (130) and the power source (not shown) to further increase the insulation reliability of the high-voltage contact of the conductive part (130). For example, the insulating member may be a structure that is embedded or inserted into the conductive part (130), and as another example, the insulating member may be formed by injecting resin into the connection between the conductive part (130) and the power source (not shown) while sealing it.

[0059] Referring to FIGS. 6 and 7, in some embodiments, the heating pot body (10) has an opening (102) facing the bottom (11) of the heating pot body (10), and the conductive section (130) includes a first conductive section (131), a second conductive section (132), and a third conductive section (133) connected in sequence, one end of the first conductive section (131) is connected to a discharge end (140) and the other end extends from the discharge end (140) toward the opening (102), the second conductive section (132) extends along the radial direction of the heating pot body (10), and the third conductive section (133) extends from the second conductive section (132) toward the opening (102).

[0060] In this way, the conductive portion (130) is extended a certain distance in the direction of the opening (102), then extended along the radial direction of the heating pot body (10), and then switched to extend away from the opening (102), thereby allowing the high-temperature heat of the first electrode (110) and the second electrode (120) to remain sufficiently at the bottom of the heating pot body (10), thereby reducing heat conduction to the outside and improving the heat utilization rate.

[0061] Specifically, in the above embodiment, the bottom (11) of the heating pot body (10) may have a round bottom structure or a flat bottom structure. The discharge end (140) of the first electrode (110) and the second electrode (120) may come into contact with the bottom surface (1031) of the pot, or with the outer surface (1032) or with the connection between the bottom surface (1031) and the outer surface (1032).

[0062] The first conductive section (131) is located within the insulation space (401), the second conductive section (132) is installed through the insulating body (400), and the third conductive section (133) is located outside the insulation space (401) and extends from the second conductive section (132) in a direction away from the opening (102). The first conductive section (131) is connected to the discharge end (140) and can be installed in close contact with the outer surface (1032) of the side wall (12). Between the first conductive section (131), the second conductive section (132), and the third conductive section (133), a bending angle similar to the outer contour angle of the insulating body (400) can be formed, thereby extending the bottom electrode length while reducing the space occupied by the conductive section (130), which can reduce the volume of the heating module (1100) and is advantageous for miniaturization. The second conductive section (132) can penetrate the insulating body (400) along the radial direction of the heating pot body (10). The first conductive section (131) and the third conductive section (133) can be distributed on both sides of the same wall surface of the insulating body (400) along the radial direction of the heating pot body (10), so that insulation breakdown between the first conductive section (131) and the third conductive section (133) is difficult to occur. The conductive part (130) and the discharge end (140) can be integrally molded from the same material.

[0063] The conductive part (130) may be manufactured from a metal material, and the conductive part (130) may be a metal wire, a circular wire, a flat wire, etc., and the excellent ductility of the metal material is advantageous for the conductive part (130) to form various bending structures and distribution states within the heating module (1100). An insulating material may be coated on the surface of the conductive part (130) to avoid discharge between the conductive parts (130) or between the conductive part (130) and other charged structures.

[0064] Referring to FIGS. 4, 5 and 8, in some embodiments, the heating pot body (10) has an opening (102) facing the bottom (11) of the heating pot body (10), and the conductive section (130) includes a first conductive section (131) and a second conductive section (132), the first conductive section (131) connects the second conductive section (132) and the discharge end (140), the first conductive section (131) extends along the radial direction of the heating pot body (10), and the second conductive section (132) extends from the first conductive section (131) in a direction away from the opening (102).

[0065] In this way, the first conductive section (131) is extended along the radial direction of the heating pot body (10), and the second conductive section (132) is extended from the first conductive section (131) in a direction away from the opening (102), thereby allowing the heat of the arc discharged between the discharge ends (140) to remain sufficiently at the bottom of the heating pot body (10), thereby reducing heat conduction to the outside and improving the heat utilization rate.

[0066] Specifically, the aerosol-forming substrate (20) may enter the receiving cavity (101) through the opening (102), the aerosol-forming substrate (20) may be applied to the bottom of the pot (11) and the side wall (12), the aerosol-forming substrate (20) may be poured or injected into the bottom of the pot (11), or the aerosol-forming substrate (20) may be placed directly on the bottom of the pot (11) by hand or through a conveying tool. The aerosol generated by the aerosol-forming substrate (20) being atomized may flow out of the receiving cavity (101) through the opening (102).

[0067] The discharge end (140) may be installed on the bottom surface (1031), the outer surface (1032), or the connection between the bottom surface (1031) and the outer surface (1032). The first conductive section (131) extends from the discharge end (140) to the outer surface of the heating pot body (10) and passes through the insulating body (400). The direction in which the first conductive section (131) extends may follow the radial direction of the heating pot body (10), thereby shortening the length of the section in which the first conductive section (131) penetrates the insulating body (400). The second conductive section (132) may be connected to the end extending from the first conductive section (131) to the outside of the insulating space (401), and the second conductive section (132) is located outside the insulating space (401). The second conductive section (132) extends from the first conductive section (131) away from the discharge end (140) in a direction away from the opening (102), and the fabric of the second conductive section (132) can be away from the heating pot body (10) and connected to an external power source (not shown). By setting the conductive section (130) to bend in the insulating body (400), insulation strength can be ensured while reducing the volume of the heating module (1100).

[0068] Referring to FIGS. 5 and FIGS. 9, in some embodiments, along the tangential direction of the heating pot body (10), the cross-sectional area of ​​the first conductive section (131) is smaller than or equal to the cross-sectional area of ​​the discharge end (140).

[0069] In this way, by setting the cross-sectional area in the tangential direction of the heating pot body of the first conductive section (131) to be smaller than that of the discharge end (140), the discharge area of ​​the discharge end (140) can be increased without increasing the accommodation space of the conductive section (130), thereby improving the intensity of the discharge of the discharge end (140) and the efficiency of arc formation.

[0070] 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 cross-sections of the first electrode (110) and the second electrode (120) along the tangential direction of the heating pot body (10) face each other with the heating pot body (10) and / or the insulating space (401) and / or the insulating body (400) in between. The cross-sections of the discharge ends (140) of the first electrode (110) and the second electrode (120) along the tangential direction of the heating pot body (10) face each other with the heating pot body (10) in between, and generate an arc by discharging along the shortest path along the bottom surface (1031) between the discharge ends (140). The first conductive section (131) may be thinner than the discharge end (140). By appropriately increasing the tangential cross-sectional area of ​​the heating pot body (10) at the discharge end (140), the effective discharge cross-section can be increased. By appropriately reducing the cross-sectional area of ​​the first conductive section (131), it is advantageous for the first conductive section (131) to be installed through the insulating body (400).

[0071] It needs to be explained that although 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 section (131), the absolute value of the cross-sectional area of ​​the discharge end (140) can still ensure that the discharge end (140) is discharge-insulated and generates an arc.

[0072] In some embodiments, a curved surface that comes into close contact with the outer surface (103) of the heating pot body (10) may be formed on one side facing the outer surface (103) of the heating pot body (10) from the discharge end (140), as shown in FIG. 5. That is, the radius of curvature of the curved surface formed on one side facing the outer surface (103) of the heating pot body (10) from the discharge end (140) matches or is similar to the radius of curvature of the outer surface (103) closest to the discharge end.

[0073] Referring to FIGS. 6 to 8, in some embodiments, the shortest path between the first electrode (110) and the second electrode (120) passes through the bottom (11) of the heating pot body (10).

[0074] In this way, the shortest path between the first electrode (110) and the second electrode (120) passes through the bottom (11) of the heating pot body (10), thereby causing an arc to be generated at the bottom (11), which reduces the probability of insulation breakdown along the circumferential direction of the heating pot body (10) and improves heating efficiency.

[0075] It must be explained that the first electrode (110) and the second electrode (120) discharge between the two ends with the shortest distance when energized, and in order to ensure that an arc occurs between the discharge ends (140) of the first electrode (110) and the second electrode (120), the extension line between the discharge ends (140) of the first electrode (110) and the second electrode (120) must be set to be the shortest path. It must also be explained that the shortest path refers to the shortest path that the discharge ends (140) have within the air medium, and the shortest path does not pass through the wall surface of the heating pot body (10). That is, the shortest path is the shortest line segment extending along the outer surface (103) of the heating pot body (10) between the first electrode (110) and the second electrode (120). For example, in the embodiment illustrated in FIG. 6, the MM extension is the shortest path between the first electrode (110) and the second electrode (120), and the arc occurs on the MM extension. As another example, in the embodiment illustrated in FIG. 7, NN is the shortest path between the first electrode (110) and the second electrode (120), and the arc occurs on the NN extension. Both the MM extension and the NN extension are line segments on the bottom surface of the pot (1031).

[0076] In some embodiments, when the bottom of the pot (11) has a round bottom structure, the shortest path between the first electrode (110) and the second electrode (120) passes through the bottom of the pot (11) of the heating pot body (10) and is the same as the MM extension line of FIG. 6 and the OO extension line of FIG. 8. The minimum distance of 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 extension line through which the discharge end (140) passes through the bottom of the pot (11). For example, the LL extension line shown in FIG. 3 is a line in which the discharge end (140) of the first electrode (110) and the second electrode (120) extends along the circumferential direction of the heating pot body (10), and the length of the MM extension line is smaller than the length of the LL extension line. The discharge end (140) of the first electrode (110) and the second electrode (120) is closer to the center axis of the heating pot body (10) or the center of the pot bottom (11) compared to the conductive part (130).

[0077] Referring further to FIGS. 6 through 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 path passes through the center of the bottom (11) of the heating pot body (10).

[0078] In this way, the shortest path along the outer surface (103) of the heating pot body (10) of the first electrode (110) and the second electrode (120) passes through the center of the bottom of the pot (11), thereby ensuring that an arc is generated at the center of the bottom of the pot (11), which is advantageous for the uniformity of heating and the stability of the heating position.

[0079] Specifically, when current is applied, the first electrode (110) and the second electrode (120) form an electrode pair in which the discharge end (140) discharges to form an arc, and the electrode pair is installed 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 radius of the heating pot body (10). As previously described, the shortest path of the first electrode (110) and the second electrode (120) is the shortest line segment extending 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). The first electrode (110) and the second electrode (120) generate an arc by discharging along the shortest path when current is applied, and if the shortest path passes through the center of the bottom of the pot (11), the arc may be generated at the center of the bottom of the pot (11), formed near the center of the bottom of the pot (11), or the formed arc may pass through the center of the bottom of the pot surface (1031).

[0080] The number of electrode pairs can be one pair, two pairs, three pairs, or more than three pairs. Multiple pairs of first electrodes (110) and second electrodes (120) may be spaced apart along the circumferential direction of the heating pot body (10). Furthermore, multiple pairs of first electrodes (110) and second electrodes (120) may be uniformly distributed along the circumferential direction of the heating pot body (10). The shortest path of each pair of first electrodes (110) and second electrodes (120) passes through the center of the bottom (11) of the heating pot body (10).

[0081] Referring to FIGS. 6 and FIGS. 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) has a round bottom structure, and both the first electrode (110) and the second electrode (120) are installed on the side wall (12).

[0082] In this way, insulation can be strengthened by installing the first electrode (110) and the second electrode (120) on the side wall (12), and the discharge end (140) is installed spaced apart on both sides of the bottom of the pot (11) so that the formed arc can easily cover the bottom of the pot surface (1031).

[0083] Specifically, the bottom of the pot (11) and the side wall (12) form a receiving cavity (101). The side wall (12) surrounds the central axis of the heating pot body (10) and extends along the axial direction of the heating pot body (10) to connect the bottom of the pot (11) and the opening (102). The thickness of the bottom of the pot (11) and the side wall (12) may be uniform, or the thickness range of the bottom of the pot (11) and the side wall (12) may be the same. The thickness of the bottom of the pot (11) and the side wall (12) may not coincide.

[0084] In the case where the bottom of the pot (11) has a round bottom structure, the bottom surface (1031) is an outwardly protruding arc surface, or the bottom surface (1031) includes an outwardly protruding arc surface and a partial plane located at the center of the bottom of the pot (11). In the above embodiment, the radius of curvature of the bottom surface (1031) is not limited.

[0085] As previously explained, the fact that the bottom of the pot (11) has a round bottom structure does not limit the shape of the outer contour of the heating pot body (10) to being circular, elliptical, square, olive-shaped, running-shaped, or other polygonal with curved sides. For example, the cross-sectional shape of the outer contour of the heating pot body (10) may be circular or similarly circular, the outer diameter range of the heating pot body (10) is 5mm-20mm (including the end point), and the diameter of the outer surface (1032) of the side wall (12) may be considered as the outer diameter of the heating pot body (10). The opening (102) may be formed by limiting the inner circumference of the top of the side wall (12).

[0086] The discharge end (140) and the conductive part (130) of the first electrode (110) and the second electrode (120) can both be positioned outside the side wall (12) and may face along the radial direction of the heating pot body (10). The first electrode (110) and the second electrode (120) may at least partially come into contact with or be in close contact with the side wall (12), and the discharge end (140) may be installed close to the bottom of the pot (11). As shown in FIG. 6, the discharge end (140) of the first electrode (110) and the second electrode (120) may come into contact with or be in close contact with the outer surface (103) of the heating pot body (10). As shown in FIG. 8, the discharge ends (140) of the first electrode (110) and the second electrode (120) are located close to the outer surface (103) of the heating pot body (10) and may form a certain gap with the outer surface (103).

[0087] Referring to FIG. 11, in some embodiments, the heating module (1100) further comprises a magnetic member (50), the magnetic member (50) is spaced apart from the heating pot body (10), and the magnetic member (50) is used to cause an arc to rotate around the center of the bottom (11) of the heating pot body (10). In the above embodiments, the first electrode (110) is close to or in contact with the side wall (12) of the heating pot body (10), and the second electrode (120) is close to or in contact with the center of the bottom (11).

[0088] In this way, by installing a magnetic member (50) so that the arc rotates about the center of the bottom of the pot (11), each position of the bottom of the pot (1031) can sufficiently exchange heat with the arc during the heating process, thereby making the temperature rise and temperature distribution of the heating pot body (10) more uniform, and making the heating temperature at each position of the bottom of the pot (11) of the aerosol forming substrate (20) relatively uniform and simultaneously good.

[0089] Specifically, the discharge end (140) of the first electrode (110) may be ring-shaped, and the discharge end (140) of the first electrode (110) may be in contact with the bottom surface (1031) of the pot, or may be in contact with the outer surface (1032) or the connection between the bottom surface (1031) and the outer surface (1032). The number of first conductive sections (131) may be two or more, and the first conductive sections (131) of the first electrode (110) may be spaced apart and distributed along the circumferential direction of the heating pot body (10) on the side wall (12). The discharge end (140) of the first electrode (110) may also be installed close to the outer surface (103) and may be formed with a certain gap between it and the outer surface (103).

[0090] The discharge end (140) of the second electrode (120) may be disc-shaped and may be in close contact with the center of the bottom surface (1031) or embedded in the center of the bottom surface (11). The discharge end (140) of the second electrode (120) may also be installed close to the bottom surface (1031) and may be formed with a certain gap between it and the bottom surface (1031).

[0091] 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 are fixed to the outer surface (103) of the heating pot body (10).

[0092] In some embodiments, as illustrated in FIG. 11, the conductive portion (130) of the first electrode (110) includes a first conductive section (131), a second conductive section (132), and a third conductive section (133) that are sequentially connected, one end of the first conductive section (131) is connected to a discharge end (140) and the other end extends from the discharge end (140) toward the opening (102), the second conductive section (132) extends along the radial direction of the heating pot body (10), and the third conductive section (133) extends from the second conductive section (132) toward the opening (102). The first conductive section (131) of the first electrode (110) may be in close contact with the outer surface (1032). The second conductive section (132) of the first electrode (110) can pass through the insulating body (400) along the radial direction of the heating pot body (10). The first conductive section (131) and the third conductive section (133) of the first electrode (110) can be distributed on both sides of the same wall surface of the insulating body (400) along the radial direction of the heating pot body (10), so that insulation breakdown between the first conductive section (131) and the third conductive section (133) is difficult to occur.

[0093] In some other embodiments, the conductive portion (130) of the first electrode (110) includes a first conductive section (131) and a second conductive section (132), the first conductive section (131) connects the second conductive section (132) and the discharge end (140), the first conductive section (131) extends along the radial direction of the heating pot body (10), and the second conductive section (132) extends from the second conductive section (132) in a direction away from the opening (102). The second electrode (120) is installed on the bottom of the pot (11). The first conductive section (131) may be installed through the insulating body (400) along the radial direction of the heating pot body (10). The second conductive section (132) may be connected to an end extending out of the insulation space (401) from the first conductive section (131), and the second conductive section (132) is located outside the insulation space (401). The second conductive section (132) extends from an end far from the discharge end (140) in the first conductive section (131) in a direction away from the opening (102), and the fabric of the second conductive section (132) may be away from the heating pot body (10) and connected to an external power source (not shown).

[0094] Referring to FIG. 6, in some embodiments, the thickness H of the bottom of the pot (11) is smaller than the thickness D of the side wall (12).

[0095] In this way, the thickness of the bottom and side wall (12) of the heating pot body (10) can be set within a reasonable range, and furthermore, the thickness H of the bottom of the pot (11) can be set to be smaller than the thickness D of the side wall (12), thereby improving heating efficiency and the rate of temperature increase.

[0096] Specifically, the thickness H of the bottom of the pot (11) is 0.4 mm to 1.0 mm (including the end point). Furthermore, the thickness D of the side wall (12) may be 0.5 mm to 1.0 mm (including the end point), and the thickness H of the bottom of the pot (11) is selected to be smaller than the thickness D of the side wall (12).

[0097] Specifically, the side wall (12) may have uniform thickness, or the thickness D of the side wall (12) may vary in a gradient or be inclined. The side wall (12) may have uniform thickness on a large surface and the wall thickness may decrease or increase locally. For example, the thickness D of the side wall (12) may be 0.5mm-1.0mm, 0.6mm-0.9mm, 0.63mm-0.88mm, 0.7mm-0.9mm, 0.75mm-0.8mm, etc., and as another example, the thickness D of the side wall (12) may be 0.5mm, 0.54mm, 0.65mm, 0.72mm, 0.81mm, 0.97mm, 1.0mm.

[0098] The thickness H of the bottom of the pot (11) is smaller than the thickness D of the side wall (12), and at the connection between the bottom of the pot (11) and the side wall (12), the wall thickness may gradually decrease from the side wall (12) to the bottom of the pot (11). The bottom of the pot (11) may have uniform thickness, that is, the thickness of the bottom of the pot (11) is uniform throughout. The bottom of the pot (11) may be locally thinned to reduce the thermal resistance between the arc and the aerosol-forming substrate (20). At locations where the thickness of the bottom of the pot (11) is not uniform, the thickness may change gradually to avoid step differences occurring on the surface of the heating pot body (10). For example, the thickness H range of the bottom of the pot (11) may be 0.4mm-1.0mm, 0.45mm-0.9mm, 0.5mm-0.8mm, 0.6mm-0.77mm, etc. As another example, the thickness H of the bottom of the pot (11) may 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 bottom of the pot (11) may be 0.4mm, 0.52mm, 0.65mm, 0.73mm, 0.8mm, etc.

[0099] Referring to FIG. 8, in some embodiments, an infrared radiation film (40) is installed on the inner surface of an insulating body (400).

[0100] In this way, the insulation capacity of the insulating body (400) can be enhanced by installing an infrared radiation film (40) on the inner surface of the insulating body (400).

[0101] It is to be explained that the heat generated by the first electrode (110) and the second electrode (120) discharging outside the receiving cavity (101) is transferred into the receiving cavity (101) through the bottom (11) (and / or some side walls (12)) of the heating pot body (10) in the form of infrared radiation or heat transfer, thereby heating and atomizing the aerosol-forming substrate (20) to generate an aerosol. The arc heat is likewise radiated outside the heating pot body (10) in the form of infrared radiation.

[0102] Specifically, the inner surface of the insulating body (400) is one side surface facing the heating pot body (10) or the discharge end (140) from the insulating body (400). The infrared radiation film (40) may be a coating layer attached to the inner surface of the insulating body (400). The coating material of the infrared radiation film (40) may be a metal oxide with a relatively high infrared radiation reflectivity, for example, the infrared radiation film (40) may be manufactured using one or more types of materials such as iron trioxide, manganese dioxide, disocalyptus trioxide, and copper oxide. The infrared radiation film (40) may also be manufactured using a material with a high infrared radiation absorption rate, and may reduce the heat transfer of infrared radiation to the outside by combining reflection and heat absorption, thereby reducing the temperature rise outside the insulating body (400).

[0103] Referring to FIG. 10, in some embodiments, the aerosol generating device (1000) includes an intake assembly (300), and the intake assembly (300) covers a receiving cavity (101).

[0104] In this way, gas can be blown into the receiving cavity (101) through the intake assembly (300), and the aerosol generated in the receiving cavity (101) can be sucked in and discharged.

[0105] Specifically, the suction port assembly (300) may be installed on the top of the heating pot body (10) and may be press-fit assembled with the heating pot body (10) at the opening (102). The heating pot body (10) may be connected to the side wall (12) at the opening (102) and may form a flange different from the extension direction of the side wall (12). A sealing member (30) may cover the flange to seal the assembly gap between the suction port assembly (300) and the flange. The suction port assembly (300) may cover the opening (102) so that the aerosol generated in the receiving cavity (101) may be sucked in through the suction port assembly (300) after overflowing from the opening (102).

[0106] Referring again to FIG. 1 and FIG. 10, the aerosol generating device (1000) of the embodiment of the present application includes a heating module (1100) according to any one of the embodiments.

[0107] 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 within the housing (200), and the heating pot body (10) can be detachably connected to the housing (200). An intake assembly (300) can be installed at one end of the housing (200).

[0108] In the aerosol generating device (1000) of the present application embodiment, the conductive portion (130) of the first electrode (110) and the second electrode (120) is extended in a direction away from the discharge end (140) and the heating pot body (10), thereby ensuring that the first electrode (110) and the second electrode (120) discharge between the discharge end (140), so that the arc heat can heat the bottom of the pot (11) more effectively. In addition, the conductive portion (130) of the first electrode (110) and the second electrode (120) changes its extension direction at least once to adapt to the internal structure of the aerosol generating device (1000), thereby reducing the installation space and making the structure compact, which is advantageous for miniaturizing the product.

[0109] In the description of this specification, references to terms such as “one embodiment,” “some embodiment,” “some embodiment,” “exemplary embodiment,” “example,” “specific example,” or “some example” mean that specific features, structures, materials, or properties described in combination with said embodiment or example are included in at least one embodiment or example of this application. In this specification, exemplary expressions of said terms do not necessarily refer to the same embodiment or example. Furthermore, the described specific features, structures, materials, or properties may be combined in an appropriate manner in any one or more embodiments or examples.

[0110] Although embodiments of the present application have been illustrated and described, those skilled in the art will understand that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is limited by the claims and their equivalents. Explanation of the symbols

[0111] 10: Heating pot body; 11: Pot bottom; 12: Side wall; 101: Receiving cavity; 102: Opening; 103: Outer surface; 1031: Pot bottom surface; 1032: Outer circumferential surface; 110: First electrode; 120: Second electrode; 130: Conductive part; 131: First conductive section; 132: Second conductive section; 133: Third conductive section; 140: Discharge end; 20: Aerosol forming substrate; 30: Sealing member; 40: Infrared radiation film; 50: Magnetic member; 1000: Aerosol generating device; 200: Housing; 300: Intake port assembly; 400: Insulating body; 401: Insulating space; 402: Receiving groove; 411: Insulating structure; 1100: Heating module.

Claims

Claim 1 A heating module comprising: a heating pot body; a receiving cavity formed in the heating pot body for receiving an aerosol-forming substrate; a first electrode and a second electrode; the first electrode and the second electrode are spaced apart and installed outside the receiving cavity, and when current is applied to the first electrode and the second electrode, an arc is formed between the first electrode and the second electrode to heat the heating pot body; and an insulating body; wherein an insulating space is formed in the insulating body, the bottom of the heating pot body is received within the insulating space, and the discharge ends of the first electrode and the second electrode are both located within the insulating space. Claim 2 A heating module according to claim 1, wherein the first electrode and / or the second electrode comprises a discharge end and a conductive portion connected to the discharge end, and the conductive portion is installed through the insulating body. Claim 3 A heating module according to claim 2, wherein the heating pot body has an opening facing the bottom of the heating pot body; the conductive section includes a first conductive section, a second conductive section, and a third conductive section connected sequentially; one end of the first conductive section is connected to the discharge end and the other end extends from the discharge end toward the opening, and the first conductive section is located within the insulating space; the second conductive section is installed through the insulating body; and the third conductive section is located outside the insulating space and extends from the second conductive section toward the opening. Claim 4 A heating module according to claim 2, wherein the heating pot body has an opening facing the bottom of the heating pot body; the conductive portion includes a first conductive section and a second conductive section; the first conductive section connects the second conductive section and the discharge end, and the first conductive section is installed through the insulating body; and the second conductive section is located outside the insulating space and extends from the second conductive section in a direction away from the opening. Claim 5 A heating module according to claim 4, characterized in that, along the tangential direction of the heating pot body, the cross-sectional area of ​​the first conductive section is smaller than or equal to the cross-sectional area of ​​the discharge end. Claim 6 A heating module according to claim 1, wherein the shortest path between the first electrode and the second electrode passes through the bottom of the heating pot body; or wherein the first electrode and the second electrode are arranged facing each other along the radial direction of the heating pot body, and the shortest path passes through the center of the bottom of the heating pot body. Claim 7 A heating module according to claim 6, wherein the heating pot body comprises a side wall and a pot bottom connected to the side wall, the pot bottom has a round bottom structure, and both the first electrode and the second electrode are installed on the side wall. Claim 8 A heating module according to claim 7, characterized in that the thickness of the bottom of the pot is smaller than the thickness of the side wall. Claim 9 A heating module according to claim 1, characterized in that an infrared radiation film is installed on the inner surface of the insulating body. Claim 10 An aerosol generating device characterized by including a heating module according to any one of claims 1 to 9.

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