Heating assembly and aerosol generating device

Abstract

A heating assembly (100) and an aerosol generating device (1000). The heating assembly (100) comprises an inner tube (10), an outer tube (20), a first electrode (110), a second electrode (120), and a conductive member (30). The outer tube (20) is sleeved outside the inner tube (10); the first electrode (110) is at least partially disposed in the inner tube (10); at least part of the second electrode (120) is arranged at one end of the inner tube (10), and is arranged opposite to and spaced from the first electrode (110); when the first electrode (110) and the second electrode (120) are energized, plasma is generated between the second electrode (120) and the first electrode (110); the conductive member (30) is configured to be electrically connected to an external power supply (200); the conductive member (30) comprises a first end portion (31) and a second end portion (32) connected to the first end portion (31); the second end portion (32) is connected to the second electrode (120); and the first end portion (31) and the position of the first electrode (110) exposed from the inner tube (10) are arranged at an interval in the axial direction of the inner tube (10).

Description

Heating components and aerosol generating devices

[0001] Priority information

[0002] This application claims priority and benefits of patent application number 202322457196.4 filed with the State Intellectual Property Office of China on September 8, 2023 and patent application number 202311163784.5, and the entire text of which is incorporated herein by reference. Technical Field

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

[0004] Plasma heating utilizes the high temperature of the plasma formed by the ionization of the working gas and the energy released when free electrons in the plasma recombine with positive ions. Plasma heating technology can be applied to aerosol generators. However, the high voltage required for plasma-based aerosol generators makes it difficult to achieve both miniaturization and safety.

[0005] Summary of the Invention

[0006] The present application provides a heating component and an aerosol generating device.

[0007] The heating assembly of the embodiment of the present application includes an outer tube, an inner tube, a first electrode, a second electrode and a conductive member.

[0008] The outer tube is sleeved on the inner tube;

[0009] The first electrode is at least partially disposed in the inner tube;

[0010] At least a portion of the second electrode is disposed at one end of the inner tube and is spaced apart from and opposite to the first electrode, and plasma is generated between the second electrode and the first electrode when power is supplied to the first electrode and the second electrode;

[0011] The conductive member includes a first end and a second end connected to the first end, the second end is connected to the second electrode, the first end is used to be electrically connected to an external power supply, and the position where the first end and the first electrode are exposed from the inner tube are spaced apart along the axial direction of the inner tube.

[0012] In the heating component of the embodiment of the present application, the first end and the position where the first electrode is exposed from the inner tube are arranged at intervals along the axial direction of the inner tube, so that the first end can utilize the axial space of the heating component along the inner tube, so that the spacing between the first end and the position where the first electrode is exposed from the inner tube can be arranged reasonably, reducing the probability of discharge between the first end and the first electrode, and realizing the miniaturization of the heating component while also improving the reliability of normal use of the heating component.

[0013] In some embodiments, the inner tube includes a first end surface and a second end surface opposite to the first end surface, the first electrode is exposed from the inner tube at the first end surface, and the first end portion is at least partially located between the first end surface and the second end surface.

[0014] In some embodiments, the first electrode is columnar as a whole; or, the first electrode includes a discharge portion and a conductive portion connected to the discharge portion, the discharge portion is located in the inner tube, and the conductive portion extends from the first end surface outside the inner tube.

[0015] In some embodiments, the heating component includes an insulating member connected to the inner tube, and at least a portion of the insulating member is located between the first end portion and the first end surface; or

[0016] The heating component comprises an insulating member sleeved on the outer side of the inner tube, and at least a portion of the insulating member is located between the first end surface and the second end surface.

[0017] In some embodiments, the end portion of the inner tube having the first end surface is inserted into the insulating member, and the first electrode is disposed through the insulating member.

[0018] In some embodiments, the insulating member includes a first insulating portion and a second insulating portion connected to the first insulating portion, the cross-sectional area of ​​the first insulating portion is smaller than the cross-sectional area of ​​the second insulating portion, the end of the inner tube having a first end face is inserted into the first insulating portion, and the first electrode is passed through the second insulating portion.

[0019] In some embodiments, the insulating member covers a portion of the first electrode located at the first end surface.

[0020] In some embodiments, the heating component includes a connector connecting the first electrode away from the second electrode, the connector is used to be electrically connected to an external power source, and the connector is located on a side of the insulating member away from the first end.

[0021] In some embodiments, the second electrode abuts against the second end surface.

[0022] In some embodiments, the second electrode includes a mounting portion and a protrusion formed on the mounting portion, wherein the protrusion extends into the inner tube and faces the first electrode.

[0023] In some embodiments, along the axial direction of the inner tube, a distance between the first end and a position where the first electrode is exposed from the inner tube is greater than or equal to 2 mm.

[0024] In some embodiments, the shortest distance between the conductive member and the position where the first electrode is exposed from the inner tube is greater than or equal to 2 mm.

[0025] In some embodiments, the heating component includes a connecting wire connected to the first end, the connecting wire is used to be electrically connected to an external power source, and an extending direction of the connecting wire forms a preset angle with the axial direction of the inner tube.

[0026] In some embodiments, the first electrode is cylindrical, and the diameter of the first electrode is in the range of 0.4 mm to 1.0 mm.

[0027] In some embodiments, a discharge arc length between the second electrode and the first electrode is 2 mm ≤ L ≤ 10 mm.

[0028] In some embodiments, a discharge arc length between the second electrode and the first electrode is 6 mm < L ≤ 10 mm.

[0029] In some embodiments, the conductive member is tubular and is sleeved outside the inner tube, and the first end and the second end are two axial ends of the conductive member respectively.

[0030] In some embodiments, the conductive member is formed with a hollow portion, and the hollow portion is located between the first end portion and the second end portion.

[0031] In some embodiments, the conductive member is in close contact with the outer wall of the inner tube, or the gap between the conductive member and the outer wall of the inner tube is less than or equal to 0.1 mm.

[0032] In some embodiments, the wall thickness of the conductive member ranges from 0.05 mm to 0.2 mm.

[0033] In some embodiments, the heating component includes an infrared radiation film, which is disposed on the inner tube, the outer tube and / or the conductive member.

[0034] In some embodiments, the outer tube is used to contact the atomized medium, the second electrode and the second end are both located inside the outer tube, and the first end is at least partially located outside the outer tube or the end surface of the first end is roughly flush with the lower end surface of the outer tube.

[0035] In some embodiments, a thermal insulation gap is formed between the inner tube and the conductive member and the inner wall surface of the outer tube.

[0036] In some embodiments, the insulation gap ranges from 0.05 mm to 0.3 mm.

[0037] In some embodiments, the heating component includes an elastic member, which is sleeved on the end of the outer tube away from the second electrode, and the inner tube passes through the elastic member.

[0038] In some embodiments, the heating component includes a temperature measuring component connected to the outer tube, and the temperature measuring component is used to detect the temperature of the outer tube.

[0039] In some embodiments, the temperature measuring component is a temperature measuring film disposed on the wall of the outer tube, or a temperature measuring probe disposed on the outer wall of the outer tube.

[0040] The heating assembly of the present embodiment includes an outer tube and an inner tube, a first electrode, a second electrode, and a conductive member. The outer tube is sleeved over the inner tube; the first electrode is at least partially disposed within the inner tube; at least a portion of the second electrode is disposed at one end of the inner tube, opposite and spaced from the first electrode; when power is applied to the first and second electrodes, plasma is generated between the second and first electrodes; the conductive member is connected to an external power source along a first direction, and the first electrode extends along a second direction and is also connected to the external power source, the first direction being different from the second direction.

[0041] An aerosol generating device provided in an embodiment of the present invention is used to heat an aerosol-forming substrate, and the aerosol generating device includes:

[0042] case;

[0043] The heating component of any of the above embodiments is installed in the housing and is used to controllably generate plasma and heat the aerosol-forming substrate;

[0044] a transformer, installed in the housing and disposed adjacent to the heating component and electrically connected to the heating component;

[0045] a control center installed in the housing and electrically connected to the transformer, the control center being configured to control the transformer to drive the heating component to generate plasma;

[0046] A power supply is installed in the housing and electrically connected to the control center to provide power to the aerosol generating device.

[0047] In some embodiments, the heat generating component and the transformer are adjacent to each other in parallel.

[0048] In some embodiments, the heat-generating component is adjacent to the transformer above and below.

[0049] In some embodiments, the heat generating component includes:

[0050] an outer tube, one end of which is open;

[0051] an inner tube, at least a portion of the inner tube being inserted into the outer tube through the opening;

[0052] a first electrode, at least partially located within the inner tube;

[0053] The second electrode is at least partially disposed at one end of the inner tube away from the first electrode, and is opposite to and spaced from the first electrode. The first electrode and the second electrode can be controlled to form plasma after being energized.

[0054] In some embodiments, the heat generating component further comprises:

[0055] a base, the base comprising at least a bottom surface and a side surface at a predetermined angle, the base being mounted on an end of the outer tube having the opening;

[0056] The first electrode is electrically connected to the bottom surface, and the second electrode is electrically connected to the side surface.

[0057] In some embodiments, the transformer comprises:

[0058] An external surface and a first output end and a second output end located on the external surface, the side surface is at least partially opposite to and adjacent to the external surface, the first output end is electrically connected to the second electrode, and the second output end is electrically connected to the first electrode.

[0059] In some embodiments, the transformer comprises:

[0060] An external connection surface, a bottom connection surface, a first output end and a second output end, wherein the first output end is located at the external connection surface, the second output end is located at the bottom connection surface of the transformer, the first output end is electrically connected to the second electrode, and the second output end is electrically connected to the first electrode.

[0061] In some embodiments, the transformer further comprises:

[0062] a first high-voltage connecting line, electrically connected to the first output terminal and the second electrode respectively;

[0063] The second high-voltage connecting line is electrically connected to the second output terminal and the first electrode respectively, and the first high-voltage connecting line and the second high-voltage connecting line are arranged in parallel.

[0064] In some embodiments, the circumscribed surface forms a preset angle with the side surface.

[0065] In some embodiments, the heating component further includes a temperature measuring component, and the temperature measuring component is used to detect the temperature of the outer tube.

[0066] In some embodiments, the control center is disposed adjacent to the heat generating component, and the power supply is located on a side of the control center facing away from the heat generating component.

[0067] In certain embodiments, the control center is located below the heat generating component and is at least partially raised to form a semi-enclosed structure for the heat generating component.

[0068] The aerosol generating device of the embodiment of the present application ensures that the components do not interfere with each other by reasonably installing the heating component, transformer, control center and power supply in the shell. In particular, the heating component and the transformer are arranged adjacent to each other, which simplifies the wiring structure of the high-voltage line and shortens the high-voltage wiring length. This is conducive to the miniaturization design of the aerosol generating device and can also ensure the safe use of the aerosol generating device.

[0069] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0070] 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:

[0071] FIG1 is a schematic structural diagram of a heating component according to an embodiment of the present application;

[0072] FIG2 is a schematic cross-sectional view of the heating component of FIG1 along the AA direction;

[0073] FIG3 is a schematic diagram of the exploded structure of the heating component according to an embodiment of the present application;

[0074] FIG4 is a schematic structural diagram of an aerosol generating device according to an embodiment of the present application;

[0075] FIG5 is a cross-sectional schematic diagram of a heating component according to another embodiment of the present application;

[0076] FIG6 is a partial schematic diagram of a heating component according to another embodiment of the present application;

[0077] FIG7 is a schematic cross-sectional view of the heating component of FIG6 along the BB direction;

[0078] FIG8 is a schematic structural diagram of an insulating member according to an embodiment of the present application;

[0079] FIG9 is a partial cross-sectional enlarged schematic diagram of the heating component of FIG7;

[0080] FIG10 is a schematic diagram of a partial structure of a heating component according to an embodiment of the present application;

[0081] FIG11 is a schematic structural diagram of a second electrode according to an embodiment of the present application;

[0082] FIG12 is an enlarged partial cross-sectional view of a heating component according to an embodiment of the present application;

[0083] FIG13 is a partial enlarged schematic diagram of portion C of FIG7 ;

[0084] FIG14 is a schematic structural diagram of a heating component according to another embodiment of the present application;

[0085] FIG15 is a schematic cross-sectional view of the heating component of FIG14 along the DD direction;

[0086] FIG16 is a schematic diagram of the exploded structure of a heating component according to another embodiment of the present application;

[0087] FIG17 is a schematic structural diagram of an aerosol generating device according to certain embodiments of the present invention;

[0088] FIG18 is a schematic structural diagram of a housing according to some embodiments of the present invention;

[0089] FIG19 is a schematic structural diagram of a heating assembly according to certain embodiments of the present invention;

[0090] FIG. 20 is a schematic structural diagram of an aerosol generating device according to certain embodiments of the present invention.

[0091] Aerosol generating device 1000, aerosol-forming substrate 300;

[0092] Heating component 100, inner tube 10, first end face 11, second end face 12, central axis 1011, outer tube 20, tapered end 21, open end 22, first electrode 110, discharge end 111, conductive end 112, second electrode 120, mounting portion 121, protrusion 122, discharge region 130, conductive member 30, first end 31, second end 32, connecting wire 33, conductive strip 34, hollow portion 35, insulating member 40, first insulating portion 41, second insulating portion 42, through hole 421, connector 50, infrared radiation film 60, thermal insulation gap 1002, elastic member 70, temperature measuring component 80, temperature sensing portion 81, temperature measuring wire 83, temperature sensing film 84, base 90, first bracket 91, second bracket 92, housing 93, wire outlet hole 903, bottom surface 951, side surface 952, first direction 1010, second direction 1020;

[0093] Power supply 200, battery 210, transformer 220, transformer 22030, external connection surface 221, first output terminal 222, second output terminal 223, bottom connection surface 224, first high-voltage connection line 225, second high-voltage connection line 226, control center 40040, charging interface 41, cover 500, extractor 501, shell 600, control key 610, display 620, mounting bracket 630. DETAILED DESCRIPTION

[0094] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and should not be understood as limiting the present application.

[0095] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present application, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0096] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections, electrical connections, or mutual communication; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to internal communication between two components or the interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0097] In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0098] The disclosure below provides many different embodiments or examples for realizing different structures of the present application. In order to simplify the disclosure of the present application, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present application. In addition, the present application may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplicity and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present application provides examples of various specific processes and materials, but those of ordinary skill in the art will appreciate the application of other processes and / or the use of other materials.

[0099] Implementation method one:

[0100] Referring to Figures 1-4, a heating assembly 100 according to an embodiment of the present application includes an inner tube 10, an outer tube 20, a first electrode 110, a second electrode 120, and a conductive member 30. The outer tube 20 is sleeved over the inner tube 10. The first electrode 110 is at least partially disposed within the inner tube 10. At least a portion of the second electrode 120 is disposed at one end of the inner tube 10, opposite to and spaced from the first electrode 110. When power is applied to the first electrode 110 and the second electrode 120, a plasma is generated between the second electrode 120 and the first electrode 110.

[0101] The conductive member 30 is used to electrically connect to the power source 200 outside the heating component 100. The conductive member 30 includes a first end 31 and a second end 32 connected to the first end 31. The second end 32 is connected to the second electrode 120, and the first end 31 is used to electrically connect to the power source 200. The first end 31 and the first electrode 110 are spaced apart along the axial direction of the inner tube 10 at the positions where they are exposed from the inner tube 10.

[0102] In the heating component 100 of the embodiment of the present application, the first end portion 31 and the position where the first electrode 110 is exposed from the inner tube 10 are spaced apart along the axial direction of the inner tube 10, so that the first end portion 31 can utilize the axial space of the heating component 100 along the inner tube 10. This allows the spacing between the first end portion 31 and the position where the first electrode 110 is exposed from the inner tube 10 to be reasonably arranged. This not only improves space utilization and facilitates the miniaturization of the heating component 100, but also reduces the probability of discharge between the first end portion 31 and the first electrode 110, thereby improving the reliability of the normal use of the heating component 100. Compared with heating devices such as resistors, plasma aerosol generating devices have a difficult contradiction between miniaturization and safety and reliability due to the addition of a transformer module and the unique high-voltage application environment.

[0103] Specifically, referring to FIG3 , the inner tube 10 can be a hollow tube with both ends open. The axial length of the inner tube 10 is much greater than the radial length. The inner tube 10 can be cylindrical as a whole, having a central axis 1011. The sides of the inner tube 10 surround the central axis 1011 of the inner tube 10 to form the wall of the inner tube 10 and the hollow space of the inner tube 10. The cross-sectional shape of the inner tube 10 can be various, such as circular, square, elliptical, etc., and can also be matched with the cross-sectional shape of the first electrode 110.

[0104] Referring to Figure 2 , at least a portion of the first electrode 110 is inserted from one end of the inner tube 10 along the axial direction of the inner tube 10 into the hollow space at the center of the inner tube 10. As shown in Figure 2 , the position where the first electrode 110 emerges from the inner tube 10 is designated P. The second electrode 120 is disposed at the other end of the inner tube 10, extending through the hollow space of the inner tube 10 and facing the portion of the first electrode 110 inserted into the inner tube 10.

[0105] A first electrode 110 is inserted into one end of the inner tube 10, and a certain distance is spaced between the second electrode 120. For ease of description, in this embodiment of the present application, the interval between the first electrode 110 and the second electrode 120 is referred to as the discharge region 130. The discharge region 130 can be enclosed by the inner tube 10 and is located in the hollow space of the inner tube 10.

[0106] Continuing to refer to Figure 2 and Figure 4 , the first electrode 110 can be connected to the power source 200, conducting one side of the high voltage electricity; the second electrode 120 can be connected to the power source 200, conducting the other side of the high voltage electricity. The first and second electrodes 110 and 120 conduct the high voltage electricity, generating a plasma arc through high-voltage discharge in the discharge region 130. At the center of the discharge region 130, the temperature of the plasma arc can reach over 1500°C. The discharge region 130 can be sealed and filled with an electrically neutral gas, such as nitrogen or argon. Alternatively, the discharge region 130 can be open to atmospheric pressure, in which case the gas within the discharge region 130 is air.

[0107] It should be noted that the first electrode 110 and the second electrode 120 can be connected to either direct current or alternating current. When direct current is applied to the first electrode 110 and the second electrode 120, the first electrode 110 and the second electrode 120 use the direct current to form a plasma; when alternating current is applied to the first electrode 110 and the second electrode 120, the first electrode 110 and the second electrode 120 use the alternating current to form a plasma.

[0108] Referring to Figures 1 and 2 , the outer tube 20 is disposed over the inner tube 10, enclosing at least a portion of the inner tube 10. The outer tube 20 can cover at least the discharge region 130 within the inner tube 10. Heat generated by the plasma arc within the discharge region 130 can be transferred via infrared radiation or heat transfer through the inner and outer tubes 10 and 20 to the aerosol-forming substrate 300 located outside the outer tube 20. This allows the aerosol-forming substrate 300 to absorb heat generated by the heating element 100, thereby forming an aerosol.

[0109] Please refer to Figures 1 to 4 again. The conductive member 30 can be disposed on the inner tube 10 and arranged along the axial direction of the inner tube 10 between the first end 31 and the second end 32. The first end 31 of the conductive member 30 is the end of the conductive member 30 that extends out of the outer tube 20 and is closest to the position where the first electrode 110 is exposed from the inner tube 10 in the axial direction of the inner tube 10. The second end 32 of the conductive member 30 can surround the second electrode 120, be disposed at one end of the inner tube 10, and be electrically connected to the second electrode 120. It should be noted that there are various ways to connect the second end 32 of the conductive member 30 to the second electrode 120. The surrounding method facilitates assembly and improves the reliability of the connection. It is understandable that it can also be achieved through crimping, welding, etc.

[0110] As shown in Figure 2, the point where the first end portion 31 extends outside the outer tube 20 and is shortest in the axial direction of the inner tube 10 from point P of the first electrode 110 is denoted as Q. The conductive member 30 can be bent at point Q of the first end portion 31 and continue to extend radially of the inner tube or in a direction substantially parallel to the inner tube's radial direction, away from the first electrode 110, to connect to the power source 200.

[0111] The first end 31 is connected to the second end 32. The second electrode 120 is electrically connected to the second end 32 and forms a path with the conductive member 30, conducting one pole of the high voltage. P and Q are separated by a predetermined distance and insulated by the inner tube 10. This prevents discharge or even breakdown between P and Q when the conductive member 30 and the first electrode 110 conduct high voltage electricity, thereby ensuring discharge reliability in the discharge area 130.

[0112] In some embodiments, the conductive member 30 may be bent at the first end 31 along the radial direction of the inner tube 10, and then bent again along the axial direction of the inner tube 10, and continue to extend toward the first end 32. The conductive member 30 may be made of a metal material with high conductivity.

[0113] In some embodiments, the second electrode 120 and the conductive member 30 are both separately manufactured components and connected at the second end face 12 to form a closed circuit by conducting an external power supply. The separate second electrode 120 and the conductive member 30 can be made of the same material.

[0114] In some embodiments, the second electrode 120 and the conductive member 30 are integrally formed. The second electrode 120 is the portion located above the second end face 12 and engaged with the second end face, while the conductive member 30 is the portion laid on the wall of the inner tube 10 .

[0115] In some embodiments, the second electrode 120 can be a tubular conductor, sleeved over the inner tube 10. One end of the tube is a disc-shaped end that engages with the second end surface 12. The other end of the tube extends axially along the inner tube 10 toward the second end surface 11 and connects to a connection wire 33 between the first and second end surfaces 11, 12. Connection wire 33 connects to an external power source. In this embodiment, the conductive member 30 constitutes a portion of the second electrode 120.

[0116] Inner tube 10 can be made of a material with high dielectric strength, such as quartz or ceramic. Such materials are also transparent to infrared radiation. The high dielectric strength of inner tube 10 reduces the probability of plasma arc breakdown.

[0117] In some embodiments, the wall thickness of the inner tube 10 ranges from 0.3 mm to 1.0 mm. For example, the wall thickness of the inner tube 10 can range from 0.3 mm to 1.0 mm, 0.4 mm to 0.8 mm, 0.5 mm to 0.7 mm, 0.55 mm to 0.6 mm, etc. For another example, the wall thickness of the inner tube 10 can range from 0.3 mm to 0.5 mm, 0.6 mm, 0.8 mm, or 1.0 mm. In this way, the inner tube 10 can meet certain strength requirements, prevent stress fracture and arc breakdown, and reduce heat capacity, which is conducive to the miniaturization of the heating component 100.

[0118] In some embodiments, a suitable heat capacity can not only improve the heating efficiency during the heating process, but also maintain a suitable cooling rate during the puffing interval to avoid overheating of the aerosol-forming substrate 300 .

[0119] Referring to Figures 2 and 3, in some embodiments, the inner tube 10 includes a first end face 11 and a second end face 12 opposite to the first end face 11, the first electrode 110 is exposed from the inner tube 10 at the first end face 11, and the first end portion 31 is at least partially located between the first end face 11 and the second end face 12.

[0120] Thus, through the reasonable arrangement of the inner tube 10 , the first electrode 110 and the conductive member 30 , the inner tube 10 can isolate and protect the conductive member 30 from the first electrode 110 , thereby reducing the possibility of discharge breakdown between the first end portion 31 and the first end face 11 .

[0121] Specifically, the first end surface 11 and the second end surface 12 can be annular. The centers of the first end surface 11 and the second end surface 12 are passed through by the central axis 1011 of the inner tube 10. The second electrode 120 can be disposed at the center of the second end surface 12. The conductive end 112 can surround the center of the second end surface 12 to form a second end portion 32, which is electrically connected to the second electrode 120.

[0122] The first electrode 110 can be inserted into the inner tube 10 from the center of the first end surface 11, with the end of the first electrode 110 inserted into the inner tube 10 facing the second electrode 120 and spaced a predetermined distance from the first end surface 11. Alternatively, the end of the first electrode 110 inserted into the inner tube 10 can be spaced the same distance from the first end portion 31 in the axial direction of the inner tube 10.

[0123] The inner tube 10 encloses at least a portion of the first electrode 110, and the conductive member 30 is attached to the outer wall of the inner tube 10, thereby providing insulation protection between the first electrode 110 and the conductive member 30. A predetermined distance exists between the end of the first electrode 110 exposed from the inner tube 10 at the first end surface 11 and the first end portion 31 along the axial direction of the inner tube 10, and the inner tube 10 partially covers the interval between the first electrode 110 and the first end portion 31.

[0124] Referring again to FIG. 2 and FIG. 3 , in some embodiments, the first electrode 110 is generally cylindrical. The first electrode 110 may be hollow or solid. The cross-sectional shape of the first electrode 110 includes, but is not limited to, circular, elliptical, square, polygonal, and the like.

[0125] For example, the first electrode 110 is in the shape of a solid cylinder and is inserted into the hollow cylindrical inner tube 10, which is beneficial for miniaturizing the structure of the heating module. The first electrode 110 is inserted into the inner tube 10 and is coaxial with the inner tube 10.

[0126] Referring to Figure 5 , in some embodiments, the first electrode 110 includes a discharge end 111 and a conductive end 112 connected to the discharge end 111. The discharge end 111 is located within the inner tube 10, while the conductive end 112 extends from the first end surface 11 outside the inner tube 10. Therefore, it can be understood that the position where the first electrode 110 is exposed from the inner tube 10, in this embodiment, can be the position where the conductive end 112 is exposed from the inner tube 10.

[0127] In this way, by adjusting the extension direction of the conductive end 112 , the first electrode 110 can be less likely to be discharged and broken down outside the inner tube 10 .

[0128] Specifically, the stiffness of the conductive end 112 can be less than that of the discharge end 111. The discharge end 111 has greater stiffness, maintaining its vertical insertion into the hollow space of the inner tube 10. The end of the discharge end 111, distal from the conductive end 112, faces the second electrode 120. The conductive end 112 extends outside the inner tube 10 and is connected to the power supply 200, conducting high voltage to generate plasma between the discharge end 111 and the second electrode 120.

[0129] In the orientation of Figure 2 , the direction from the second end surface 12 to the first end surface 11 along the axial direction of the inner tube 10 can be from top to bottom. Referring to Figure 5 , the inner tube 10 is provided with, from top to bottom, the second electrode 120, the second end 32 of the conductive member 30, the discharge end 111 of the first electrode 110, the first end 31 of the conductive member 30, and the conductive end 112 of the first electrode 110. The first end surface 11 is located below the first end 31 and above the conductive portion 111.

[0130] For example, the discharge end 111 may be a metal wire, and the conductive end 112 may be a conductive rod.

[0131] Referring to FIG. 6 and FIG. 7 , in some embodiments, the heating component 100 includes an insulating member 40 connected to the inner tube 10 , and at least a portion of the insulating member 40 is located between the first end portion 31 and the first end surface 11 .

[0132] In some embodiments, the insulating member 40 is sleeved outside the inner tube 10 and is not in direct contact with the inner tube 10 . At least a portion of the insulating member 40 is located between the first end portion 31 and the first end surface 11 .

[0133] In this way, the insulating member 40 enhances the insulation strength between the first end portion 31 and the first end surface 11 , further reducing the possibility of discharge breakdown between the first end portion 31 and the first end surface 11 , thereby improving the insulation and heating reliability of the heating component 100 .

[0134] Specifically, the insulating member 40 can be fixedly connected to the end of the inner tube 10 away from the second electrode 120. The insulating member 40 can be sleeved outside the inner tube 10 to isolate the first end face 11 from the first end portion 31. The insulating member 40 can be a sleeve made of a soft insulating material, such as a rubber sleeve. The insulating member 40 can be a rubber sleeve with an interference fit with the inner tube 10. The insulating member 40 can also be encapsulated with encapsulating glue, encapsulating glass glaze, etc., encapsulated at the end of the inner tube 10 near the first end face 11.

[0135] In some embodiments, the end portion of the inner tube 10 having the first end surface 11 is inserted into the insulating member 40 , and the first electrode 110 is disposed through the insulating member 40 .

[0136] In this way, at the first end face 11, the first electrode 110, the inner tube 10 and the insulating part 40 are nested in sequence, the structure is compact, and it is easy to assemble and produce. In addition, the part of the first electrode 110 at the first end face 11 is wrapped by the insulating part 40, and the P point of the first electrode 110 is not easy to discharge with the Q point of the conductive part 30.

[0137] Specifically, the insulating member 40 can be hollow and tubular, with the wall of the insulating member 40 being thicker than the wall of the inner tube 10. The first electrode 110 can sequentially pass through the first end surface 11 of the inner tube 10 and the insulating member 40. The end of the inner tube 10 with the first end surface 11 wraps around the first electrode 110 and is inserted into the insulating member 40 together with the first electrode 110. The first electrode 110 can pass through the first end surface 11, penetrate the insulating member 40 along the axial direction of the inner tube 10, and exit the insulating member 40 from the side of the insulating member 40 facing away from the first end surface 11.

[0138] Please refer to Figures 6 to 8. In some embodiments, the insulating member 40 includes a first insulating portion 41 and a second insulating portion 42 connected to the first insulating portion 41. The cross-sectional area of ​​the first insulating portion 41 is smaller than the cross-sectional area of ​​the second insulating portion 42. The end of the inner tube 10 having the first end face 11 is inserted into the first insulating portion 41, and the first electrode 110 is passed through the second insulating portion 42.

[0139] In this way, the insulating member 40 can wrap and insulate the inner tube 10 and the first electrode 110 to varying degrees, thereby improving structural stability and enhancing insulation protection for the first electrode 110 through the second insulating portion 42 .

[0140] For example, referring to FIG7 , a first insulating portion 41 and a second insulating portion 42 are connected. The first insulating portion 41 is in the shape of a hollow cylinder, while the second insulating portion 42 is in the shape of a cube and has a central through-hole 421. The central through-hole 421 of the second insulating portion 42 may be continuous with the hollow portion of the first insulating portion 41.

[0141] 7 , the inner tube 10 wraps the first electrode 110 and is inserted into the first insulating portion 41 . The first electrode 110 extends out of the inner tube 10 from the first end surface 11 in the first insulating portion 41 and is inserted into the through hole 421 of the second insulating portion 42 .

[0142] Continuing to refer to FIG. 6 to FIG. 8 , in some embodiments, the insulating member 40 covers the portion of the first electrode 110 located at the first end surface 11 .

[0143] In this way, the insulating member 40 reduces the probability of discharge breakdown of the first electrode 110 at the first end surface 11 and can further reduce the distance between the end of the first electrode 110 extending out of the inner tube 10 and the first end portion 31 , which is beneficial to the miniaturization of the heating component 100 .

[0144] In the related art, the first electrode and the conductive member are connected to the two poles of an external power source, respectively. A large distance must be maintained between the portion of the first electrode extending from the inner tube and the first end of the conductive member to prevent discharge and breakdown between the first electrode and the first end. In the embodiment of the present application, the insulating member 40 covers the portion of the first electrode 110 extending from the inner tube 10, thereby reducing the distance between the end of the first electrode 110 extending from the inner tube 10 and the first end 31.

[0145] Specifically, the second insulating portion 42 covers the portion of the first electrode 110 that extends from the first end surface 11 out of the inner tube 10. The first electrode 110 is sequentially wrapped by the inner tube 10 and the first insulating portion 41 within the first insulating portion 41, and the portion of the first electrode 110 exposed outside the inner tube 10 is only wrapped by the second insulating portion 42.

[0146] It can be understood that the cross-sectional area of ​​the first insulating portion 41 is smaller than that of the second insulating portion 42. The thickness of the second insulating portion 42 is greater than that of the first insulating portion 41, thereby enhancing the insulation strength of the second insulating portion 42. The larger cross-sectional area of ​​the second insulating portion 42 can enhance the insulation protection of the portion of the first electrode 110 exposed to the outside of the inner tube 10.

[0147] In some embodiments, the insulating member 40 contacts the first end surface 11 to enhance structural compactness and improve insulation.

[0148] Referring again to Figures 7 and 8, in some embodiments, the heating assembly 100 includes a connector 50 connected to the first electrode 110 away from the second electrode 120. The connector 50 is used to electrically connect to the power source 200. The connector 50 is located on a side of the insulating member 40 away from the first end 31. The insulating member 40 can cover the connector 50 along the axial direction of the inner tube 10.

[0149] In this way, by connecting the first electrode 110 to the power source 200 via the connector 50 , the distance required for maintaining insulation between the first electrode 110 and the first end portion 31 can be further shortened, thereby making the heating component 100 more compact.

[0150] Specifically, the connector 50 is electrically connected to an end of the first electrode 110 that is distal from the second electrode 120. The connector 50 may be disc-shaped, covering the portion of the first electrode 110 that extends outside the second insulating portion 42. The end of the connector 50 connected to the first electrode 110 may extend into the through-hole 421 of the second insulating portion 42. The insulating member 40 is at least partially located between the connector 50 and the conductive member 30. The second insulating portion 42 may cover the side of the connector 50 that is connected to the first electrode 110.

[0151] Referring to FIG. 7 and FIG. 9 , in some embodiments, the second electrode 120 abuts against the second end surface 12 .

[0152] In this way, the second electrode 120 can be installed at the end of the inner tube 10 having the second end surface 12 , and the second end surface 12 plays a role in fixing and limiting the second electrode 120 .

[0153] Specifically, referring to Figure 9 , the second electrode 120 may cover the entire second end surface 12, sealing the end of the inner tube 10 having the second end surface 12. The side of the second electrode 120 facing the first electrode 110 is in close contact with the second end surface 12. The side of the second electrode 120 facing away from the second end surface 12 faces the closed end of the outer tube 20.

[0154] In some embodiments, the second electrode 120 is made of a heat-resistant conductive material. Using a heat-resistant conductive material can increase the burn-resistant life of the second electrode 120, thereby improving the discharge reliability of the heating component 100. Exemplarily, the material of the second electrode 120 is at least one of a nickel-based alloy, an iron-based alloy, a copper-based alloy, zirconium, hafnium, and tungsten.

[0155] Referring to Figures 7, 9 and 11, in some embodiments, the second electrode 120 includes a mounting portion 121 and a protrusion 122 formed on the mounting portion 121. The protrusion 122 extends into the inner tube 10 and faces the first electrode 110.

[0156] In this way, the protrusion 122 can guide the first electrode 110 and the second electrode 120 to discharge in the inner tube 10, which is beneficial to the generation of plasma arc.

[0157] Specifically, the mounting portion 121 may be disc-shaped, and the diameter of the mounting portion 121 may be slightly larger than the outer diameter of the inner tube 10. The mounting portion 121 abuts against the second end surface 12, and the second end portion 32 of the conductive member 30 surrounds the second electrode 120, so that the second electrode 120 is fixedly mounted on the end of the inner tube 10 having the second end surface 12.

[0158] The protrusion 122 may be spherical or hemispherical and is formed on the side of the mounting portion 121 close to the second end surface 12. The width of the protrusion 122 along the axial direction of the inner tube 10 is smaller than the inner diameter of the inner tube 10, and the width gradually decreases as it approaches the second electrode 120 along the axial direction of the inner tube 10.

[0159] As can be understood, the larger radius of curvature of protrusion 122 facilitates the concentration of charge in the conductive medium at locations with larger curvature radii, generating a greater electric field strength and facilitating plasma generation. The rate of change of protrusion 122 along the axial width of inner tube 10 is relatively gradual to avoid excessive charge concentration and ablation caused by excessively sharp protrusions 122.

[0160] Referring to FIG. 7 and FIG. 10 , in some embodiments, the center of the protrusion 122 is located on the central axis 1011 of the inner tube 10 .

[0161] In this way, the protrusion 122 can guide the arc to discharge at the center point of the first electrode 110, thereby improving the circumferential uniformity of the discharge temperature.

[0162] As previously mentioned, the first electrode 110 is coaxial with the inner tube 10. The discharge region 130 is the area between the second electrode 120 and the first electrode 110 where a plasma arc is generated. The second electrode 120 directs the discharge via a protrusion 122 directed toward the first electrode 110. The center of the protrusion 122 is located on the central axis 1011 of the inner tube 10. The center of the first electrode 110 is also located on the central axis 1011 of the inner tube 10, increasing the probability that the center of the discharge region 130 will be located on the central axis 1011 of the inner tube 10.

[0163] 7 and 9 , in some embodiments, the outer tube 20 includes a tapered end portion 21 , and the second electrode 120 is disposed at one end of the inner tube 10 and abuts against the inner wall of the tapered end portion 21 .

[0164] One end of the outer tube 20, which has a tapered end 21, is inserted into the aerosol-forming substrate 300. The second electrode 120 has a protrusion 122 at its center, which extends into the inner tube 10. The center of the protrusion 122 is located on the central axis 1011 of the inner tube 10. The outer tube 20 and the inner tube 10 are generally coaxial. The side of the mounting portion 121 facing away from the second end surface 12 abuts against the inner wall of the tapered end 21.

[0165] In this way, the second electrode 120 abuts against the outer tube 20 and the inner tube 10 to achieve automatic centering and alignment, which is convenient for assembly and is conducive to uniform heat transfer to the circumference of the outer tube 20.

[0166] Please refer to FIG. 7 again. The position where the first electrode 110 is exposed from the inner tube 10 can be indicated by P, and the position where the first end portion 31 is closest to point P can be indicated by Q.

[0167] In some embodiments, along the axial direction of the inner tube 10 , a distance between the first end portion 31 and a position where the first electrode 110 is exposed from the inner tube 10 is greater than or equal to 2 mm.

[0168] In this way, the arc breakdown from the first end 31 can be reduced. At the same time, the axial distance between the position where the first electrode 110 extends out of the inner tube 10 and the first end 31 can be reduced, thereby reducing the axial length of the heating component 100 in the inner tube 10 and saving costs.

[0169] Exemplarily, the PQ line segment is in the same direction as the central axis 1011 of the inner tube 10. It will be understood that the length of the PQ line segment is the minimum distance between the first end 31 and the position where the first electrode 110 is exposed from the inner tube 10. The length of the PQ line segment is not less than 2 mm. The length of the PQ line segment can be 2.1 mm, 2.3 mm, 2.5 mm, 2.6 mm, 3 mm, 4 mm, etc. The distance between other positions on the conductive member 30 and the portion of the first electrode 110 exposed outside the inner tube is greater than the length of the PQ line segment. It should be noted that the PQ line segment being in the same direction as the central axis 1011 of the inner tube 10 does not necessarily mean that the two are parallel. They can be approximately parallel, or the angle between the PQ line segment and the central axis 1011 of the inner tube 10 is less than or equal to 60°, or less than or equal to 30°.

[0170] In some embodiments, the shortest distance between the conductive member 30 and the position where the first electrode 110 is exposed from the inner tube 10 is greater than or equal to 2 mm.

[0171] As mentioned above, maintaining the distance between the conductive member 30 and the position where the first electrode 110 is exposed from the inner tube 10 can prevent breakdown outside the discharge region 130 and cause failure of the heating component 100.

[0172] Specifically, the second end 32 of the conductive member 30 is fixed to the first end face 11 of the inner tube 10 and extends along the outer wall of the inner tube 10 from the second end face 12 toward the first end face 11. The end of the conductive member 30 closest to the second end face 12 and the location where the first electrode 110 is exposed from the inner tube 10 is the first end 31. In other words, the distance between the conductive member 30 and any location on the connection wire 33 other than the first end 31 and the location where the first electrode 110 is exposed from the inner tube 10 is greater than the distance between the first end 31 and the location where the first electrode 110 is exposed from the inner tube 10.

[0173] Furthermore, the distance between the first end portion 31 and the position where the first electrode 110 is exposed from the inner tube 10 has a critical value of 2 mm. If the distance between the first end portion 31 and the position where the first electrode 110 is exposed from the inner tube 10 exceeds the critical value of 2 mm, when high voltage is conducted between the first electrode 110 and the conductive member 30, breakdown is likely to occur in the area between the first end portion 31 and the first electrode 110 exposed from the inner tube 10.

[0174] Referring to Figures 2 and 4, in some embodiments, the heating component 100 includes a connection wire 33 connected to the first end 31. The connection wire 33 is used to electrically connect to the power source 200, and the extension direction of the connection wire 33 is approximately perpendicular to the axial direction of the inner tube 10. It should be noted that the extension direction of the connection wire 33 here is approximately perpendicular to the axial direction of the inner tube 10, including the case of being perpendicular or inclined. For example, the angle between the extension direction of the connection wire 33 and the axial direction of the inner tube 10 is greater than or equal to 30° and less than or equal to 90°. Preferably, the connection wire 33 gradually extends away from the position where the first electrode 110 is exposed to the inner tube 10, or the connection wire 33 gradually extends away from point P. Based on the positional relationship shown in Figure 7 as a reference, the connection wire 33 preferably has its extension direction inclined upward.

[0175] In this way, the connection wire 33 and the first electrode 110 can be easily kept at a certain distance in the axial direction of the inner tube 10, thereby reducing the possibility of the first end portion 31 and the first electrode 110 at the first end surface 11 breaking down before the discharge region 130, and also reducing the possibility of the connection wire 33 and the first electrode 110 at the first end surface 11 breaking down.

[0176] Specifically, the connecting wire 33 can be a wire having a stiffness smaller than that of the first end 31 and the second end 32. The connecting wire 33 is connected to the first end 31 and extends from the first end 31 in a direction away from the central axis 1011 of the inner tube 10. The extension direction can be substantially along the radial direction of the inner tube 10.

[0177] It will be appreciated that the connection wire 33 extends radially along the inner tube 10, allowing it to be positioned away from the central axis 1011 of the inner tube 10 when the connection wire 33 extends relatively short. The first end 31 can form a substantial perpendicular foot of the connection wire 33 to the inner tube 10, ensuring that the first end 31 is always the end of the conductive member 30 that is shortest from the first end surface 11. A similar effect can be achieved by extending the connection wire 33 toward the second electrode 120.

[0178] Referring to Figures 2 and 3 , in some embodiments, the first electrode 110 is cylindrical, and the diameter of the first electrode 110 ranges from 0.4 mm to 1.0 mm. It should be noted that the cross-sectional shape of the first electrode 110 is not limited to a circle, and can be a square, polygonal, elliptical, etc. The diameter of the first electrode 110 is the diameter of the circumscribed circle of the cross section of the first electrode 110.

[0179] This is beneficial for miniaturization of the heating component 100 and can also improve the burning life of the first electrode 110 .

[0180] For example, the first electrode 110 can be a metal wire having a diameter not less than 0.4 mm and not more than 1.0 mm. The diameter of the first electrode 110 can be slightly smaller than the inner diameter of the inner tube 10. For example, the diameter of the first electrode 110 can range from 0.4 mm to 1.0 mm, 0.5 mm to 0.9 mm, 0.6 mm to 0.7 mm, 0.75 mm to 0.8 mm, etc. For another example, the diameter of the first electrode 110 can be 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, or 1.0 mm.

[0181] It is understood that the discharge between the end of the first electrode 110 extending into the inner tube 10 and the second electrode 120 generates a plasma arc, which must withstand the high temperature of the plasma arc. A larger diameter of the first electrode 110 requires more heat to generate the burn. Therefore, appropriately increasing the diameter of the first electrode 110 can improve the burn-resistant lifespan. Furthermore, the diameter of the first electrode 110 is limited by the inner diameter of the inner tube 10. Due to the need for miniaturization, the diameter of the first electrode 110 does not exceed 1.0 mm.

[0182] In some embodiments, the first electrode 110 is made of a heat-resistant conductive material. Specifically, the first electrode 110 is made of at least one of a nickel-based alloy, an iron-based alloy, a copper-based alloy, zirconium, hafnium, and tungsten. The use of such heat-resistant conductive materials improves the durability of the first electrode 110 under the high temperatures generated by the plasma arc. The material of the first electrode 110 and the material of the second electrode 120 can be the same or different.

[0183] In some embodiments, the end surface of the first electrode 110 extending into the inner tube 10 is slightly protruding, has a relatively blunt arc shape, and a smooth surface. The vertex of the protrusion of the first electrode 110 end surface can be located on the central axis 1011 of the inner tube 10, opposite the protrusion 122 of the second electrode 120.

[0184] In some embodiments, the end of the first electrode 110 extending into the inner tube 10 has a flat end surface, and the center of the end surface is located on the central axis 1011 of the inner tube 10 .

[0185] As previously described, discharge region 130 is formed between the end of first electrode 110 extending into inner tube 10 and second electrode 120. High voltage is conducted between first electrode 110 and second electrode 120 to generate a plasma arc in discharge region 130. In the following description, L will be used to indicate the arc length of the plasma arc generated by first electrode 110 and second electrode 120, i.e., the arc length of the discharge.

[0186] Referring to FIG. 12 , in some embodiments, the discharge arc length between the second electrode 120 and the first electrode 110 is 2 mm ≤ L ≤ 10 mm.

[0187] In this way, the discharge arc length is within a controlled range, so that the discharge effect of the first electrode 110 and the second electrode 120 and the temperature field distribution in the discharge arc length region are better.

[0188] Specifically, the discharge arc length between the second electrode 120 and the first electrode 110 can be any length not less than 2 mm and not greater than 10 mm. For example, the discharge arc length can range from 3 mm to 10 mm, 4 mm to 8 mm, 5 mm to 7 mm, 5.5 mm to 6 mm, etc. Exemplarily, the discharge arc length can be 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 8 mm, 9 mm, 10 mm, etc. The discharge region 130 is located within the inner tube 10, and the length of the inner tube 10 is significantly greater than the discharge arc length. The outer tube 20 is sleeved over the inner tube 10, covering the entire discharge region 130. The outer tube 20 is inserted into the aerosol-forming substrate 300, and the outer tube 20 inserted into the aerosol-forming substrate 300 includes at least the tube end portion covering the discharge region 130.

[0189] Continuing to refer to FIG. 12 , in some embodiments, the discharge arc length between the second electrode 120 and the first electrode 110 is 6 mm < L ≤ 10 mm.

[0190] In this way, the discharge effect of the first electrode 110 and the second electrode 120 is better, and it is not easy to produce discharge odor. In addition, the temperature field distribution in the discharge arc length area is more conducive to temperature control. The appropriate temperature field distribution is very important for the consistency of the aerosol taste and is conducive to the simplification of the temperature control logic.

[0191] Exemplarily, the discharge arc length ranges from 6 mm to 9 mm, 7 mm to 8.5 mm, 7.5 mm to 8 mm, etc. For example, the discharge arc length may be 6.1 mm, 7.5 mm, 8.6 mm, 9.8 mm, 10 mm, etc.

[0192] In one example, the arc length L between the second electrode 120 and the first electrode 110 is 8 mm. It will be appreciated that the arc length is approximately equal to the axial distance between the first electrode 110 and the second electrode 120 in the inner tube 10. The axial distance between the first electrode 110 and the second electrode 120 in the inner tube 10 can be fixed, so the arc length can be a fixed value.

[0193] Please refer to FIG. 10 . In some embodiments, the conductive member 30 is tubular and is sleeved outside the inner tube 10 . The first end 31 and the second end 32 are respectively two axial ends of the conductive member 30 .

[0194] In this way, the tubular conductive member 30 is sleeved on the outside of the inner tube 10, which is beneficial to the circumferential transfer of heat from the center of the inner tube 10 to the outer tube 20, and is easy to assemble. The tubular conductive member 30 is not easily deformed by heat, so the range of choices for the material of the conductive member 30 is wider, saving the installation space of the conductive member 30.

[0195] Specifically, the conductive member 30 can be coaxial with the inner tube 10, so that the center of the discharge region 130 is approximately located on the centerline of the conductive member 30, ensuring uniform heat conduction. The first end 31 and the second end 32 are connected by a conductive strip 34. The conductive strip 34 conforms to the outer surface of the inner tube 10 and extends axially along the inner tube 10. The first end 31 and the second end 32 can be annular, surrounding the central axis 1011 of the inner tube 10 and covering the outer wall of the inner tube 10.

[0196] Please refer to FIG. 10 again. In some embodiments, the conductive member 30 is formed with a hollow portion 35 . The hollow portion 35 is located between the first end portion 31 and the second end portion 32 .

[0197] This cuts off the path for heat generated by the plasma arc in the discharge region 130 to transfer to the first end portion 31, thereby increasing the efficiency of heat utilization in heating the aerosol-forming matrix 300 in the outer tube 20. The hollow portion 35 also helps to increase the intensity of the plasma arc's external radiation.

[0198] Specifically, there can be multiple hollow portions 35, each formed by intervals of conductive strips 34 and / or connecting rings (not shown). The multiple conductive strips 34 can be spaced apart along the circumference of the inner tube 10. There can be two conductive strips 34, each located at opposite ends of the same diameter of the inner tube 10, forming two hollow portions 35. Referring to Figure 2 , the outer wall of the inner tube 10 faces the inner wall of the outer tube 20 through the hollow portions 35. The hollow portions 35 can extend axially from the first end 31 to the second end 32 of the inner tube 10, thereby increasing the area of ​​the outer wall of the inner tube 10 facing the inner wall of the outer tube 20.

[0199] Referring to FIG. 7 and FIG. 13 , in some embodiments, the conductive member 30 is in close contact with the outer wall of the inner tube 10 , or the gap between the conductive member 30 and the outer wall of the inner tube 10 is less than or equal to 0.1 mm.

[0200] In this way, the distance between the conductive member 30 and the inner tube 10 is relatively close, which can improve the heat transfer efficiency between the conductive member 30 and the inner tube 10. In addition, ensuring that the distance between the conductive member 30 and the inner tube 10 is relatively close, or the conductive member 30 is in close contact with the inner tube 10, can effectively prevent the conductive member 30 from contacting the inner wall of the outer tube 20, thereby avoiding uneven temperature field distribution in the outer tube 20.

[0201] In some embodiments, the conductive member 30 may also be a conductive layer or conductive line coated on the inner tube 10 , and its shape, thickness, and arrangement position on the inner tube 10 may be understood in the same way as the above-mentioned solution.

[0202] Specifically, the first electrode 110 and the second electrode 120 generate a plasma arc in the discharge region 130 within the inner tube 10. The plasma temperature can reach over 1000°C, generating a significant amount of heat in the center of the discharge region 130. The heat generated in the discharge region 130 is conducted or radiated through the inner tube 10, the conductive member 30, and the outer tube 20 to the aerosol-forming substrate 300 surrounding the outer tube 20. The conductive member 30 is tightly attached to the outer wall of the inner tube 10, effectively conducting heat away from the discharge region 130.

[0203] In some embodiments, the wall thickness of the conductive member 30 is in the range of 0.05 mm to 0.2 mm.

[0204] In this way, the heat capacity can be reduced and the energy utilization efficiency of heat generation can be improved.

[0205] For example, the wall thickness of the conductive member 30 may range from 0.05 mm to 0.19 mm, 0.06 mm to 0.18 mm, 0.07 mm to 0.17 mm, 0.08 mm to 0.16 mm, 0.09 mm to 0.15 mm, 0.10 mm to 0.14 mm, 0.11 mm to 0.13 mm, 0.115 mm to 0.125 mm, etc. For example, the wall thickness of the conductive member 30 may range from 0.05 mm, 0.06 mm, 0.08 mm, 0.10 mm, 0.12 mm, 0.15 mm, 0.16 mm, 0.2 mm, etc.

[0206] It will be appreciated that as the wall thickness of the conductive member 30 increases, the amount of heat that the conductive member 30 can absorb and store also increases, thereby increasing the heat capacity of the heating component 100. A conductive member 30 with a wall thickness of less than or equal to 0.2 mm is less likely to store heat, thereby facilitating the conductive member 30 to transfer heat from the discharge region 130 to the aerosol-forming substrate 300. A conductive member 30 with a wall thickness of greater than or equal to 0.05 mm is less likely to wear out and fail.

[0207] In some embodiments, the conductive member 30 is made of an oxidation-resistant metal material, which can prevent the conductive member 30 from oxidizing and failing during the heat and electrical conduction process, thereby improving durability.

[0208] Specifically, the conductive member 30 is made of at least one of a nickel-based alloy and an iron-based alloy.

[0209] Referring to FIG. 12 and FIG. 13 , in some embodiments, the heating component 100 includes an infrared radiation film 60 , which is disposed on the inner tube 10 , the outer tube 20 , and / or the conductive member 30 .

[0210] In this way, the ability of the heating component 100 to heat through infrared radiation can be enhanced, further improving the utilization rate of the plasma arc heat.

[0211] Specifically, the infrared radiation film 60 may be a coating attached to the inner or outer wall of the inner tube 10, outer tube 20 and / or conductive member 30. The coating material of the infrared radiation film 60 may be a metal oxide, silicon or other material that can specifically absorb infrared radiation.

[0212] For example, the infrared radiation film 60 can be made of one or more of the following materials: iron manganese copper oxide, CrC, TiCN, diamond-like carbon (DLC), black silicon (HBQ), dolmanite, transition metal oxide spinel, rare earth oxide, ion-co-doped calcium ore, silicon carbide, zircon, boron nitride, etc. Exemplarily, the infrared radiation film 60 is coated on the outer wall surfaces of the outer tube 20 and the conductive member 30, as well as the outer wall surface of the inner tube 10 not covered by the conductive member 30.

[0213] Referring to Figures 1 and 4, in some embodiments, the heating component 100 includes an outer tube 20 that is sleeved outside the inner tube 10. The outer tube 20 is used to contact the aerosol-forming matrix 300. The second electrode 120 and the second end 32 are both located inside the outer tube 20, and the first end 31 is at least partially located outside the outer tube 20, or the end surface of the first end 31 is roughly flush with the lower end surface of the outer tube 20.

[0214] In this way, the heating component 100 can form a modular needle body, which is easy to assemble and produce.

[0215] Specifically, referring to Figure 2 , outer tube 20 may be a hollow tube with one end closed and the other open. The closed end of outer tube 20 may form a tapered end 21, while the open end may be an open end 22. Open end 22 may have a circular cross-section, and the cross-sectional area of ​​open end 22 may be greater than the cross-sectional area of ​​tapered end 21.

[0216] The inner tube 10 encases the first electrode 110. The end of the inner tube 10, including the second end surface 12, is inserted into the outer tube 20 from the open end 22, such that the second electrode 120, disposed on the second end surface 12, abuts against the inner wall of the tapered end 21. The conductive member 30 is closely attached to the outer wall of the inner tube 10. The second end 32 is connected to the second electrode 120 and extends into the outer tube 20 along with the inner tube 10, approaching the tapered end 21. The first end 31 can extend from the open end 22 to the outside of the outer tube 20.

[0217] In some embodiments, the outer tube 20 is made of at least one of quartz and ceramic, so that the outer tube 20 can provide insulation protection and can transmit infrared radiation, transmitting the infrared radiation emitted by the discharge of the first electrode 110 and the second electrode 120 to the outside of the outer tube 20 to heat the aerosol-forming matrix 300.

[0218] In some embodiments, the wall thickness of the outer tube 20 ranges from 0.3 mm to 0.5 mm (inclusive). The outer diameter of the outer tube 20 is D, preferably 2.0 mm ≤ D ≤ 3.0 mm. For example, the wall thickness of the outer tube 20 can be 0.3 mm, 0.35 mm, 0.4 mm, 0.45 mm, 0.5 mm, etc. The outer diameter of the outer tube 20 can be 2.0 mm, 2.1 mm, 2.3 mm, 2.6 mm, 2.8 mm, 3 mm, etc. The outer tube 20 can be a quartz tube with an outer diameter of 2.0 mm and a wall thickness of 0.3 mm. For another example, the outer tube 20 can be a quartz tube with an outer diameter of 3.0 mm and a wall thickness of 0.4 mm.

[0219] Please refer to FIG. 12 and FIG. 13 again. In some embodiments, a thermal insulation gap 1002 is formed between the inner tube 10 and the conductive member 30 and the inner wall surface of the outer tube 20 .

[0220] Thus, the provision of the thermal insulation gap 1002 can increase the temperature difference between the outer tube 20 and the center of the discharge area 130, thereby preventing the outer tube 20 from overheating for a long time, thereby increasing the radiation temperature in the center of the discharge area 130 and improving the energy of infrared radiation.

[0221] Specifically, the high temperature of the plasma arc in the center of the discharge region 130 can exceed 2000° C., and the stable temperature is 1000° C. to 1600° C. The heat of the discharge region 130 is radiated to the aerosol-forming substrate 300 through the inner tube 10 and the outer tube 20 in the form of infrared radiation.

[0222] A temperature of approximately 350°C on the outer tube 20 effectively heats the aerosol-forming substrate 300. A thermal insulation gap 1002 is provided between the outer tube 20, the inner tube 10, and the conductive element 30, isolating the outer tube 20 from the discharge region 130. This prevents heat from concentrating in the outer tube 20 and causing prolonged overheating. The thermal insulation gap 1002 isolates the outer tube 20 from the inner tube 10 and the conductive element 30, increasing the temperature difference between the outer tube 20 and the discharge region 130. While the temperature of the outer tube 20 does not exceed 350°C, the temperature of the discharge region 130 can be relatively high, significantly reducing preheating time. The energy of infrared radiation is proportional to temperature to the fourth power: the higher the temperature at the center of the discharge region 130, the greater the energy radiated to the aerosol-forming substrate 300.

[0223] In some embodiments, the width of the insulation gap 1002 ranges from 0.05 mm to 0.3 mm.

[0224] In this way, the outer tube 20 can be prevented from being overheated for a long time, while keeping the structure of the heating component 100 relatively compact and miniaturized.

[0225] Exemplarily, the width of the thermal insulation gap 1002 ranges from 0.05 mm to 0.3 mm, 0.06 mm to 0.15 mm, 0.15 mm to 0.3 mm, 0.07 mm to 0.25 mm, 0.1 mm to 0.2 mm, etc. For example, the width of the thermal insulation gap 1002 is 0.05 mm, 0.06 mm, 0.08 mm, 0.12 mm, 0.16 mm, 0.17 mm, 0.2 mm, 0.25 mm, 0.28 mm, 0.3 mm, etc. Specifically, the thermal insulation gap 1002 between the inner tube 10 and the outer tube 20 can be uneven. The outer wall of the inner tube 10 is partially covered by the conductive member 30, and the portion of the inner tube 10 covered by the conductive member 30 has a smaller thermal insulation gap 1002 than the portion of the inner tube 10 facing the outer tube 20.

[0226] Please refer to FIG. 6 and FIG. 7 . In some embodiments, the heating component 100 includes an elastic member 70 . The elastic member 70 is sleeved on the end of the outer tube 20 away from the second electrode 120 . The inner tube 10 passes through the elastic member 70 .

[0227] In this way, the elastic member 70 can securely position the inner tube 10, the conductive member 30, and the outer tube 20, improving the mechanical impact resistance of the heating assembly 100. It also ensures a high degree of coaxiality between the discharge heating center within the inner tube 10 and the outer tube 20, thereby improving the temperature uniformity around the needle body. Furthermore, the elastic member 70 can seal the open end 22, reducing the risk of discharge odor.

[0228] In some embodiments, the elastic member 70 is elastic. The elastic member 70 wraps around the outer tube 20, the conductive member 30, and the inner tube 10, forming an interference fit. The elastic member 70 covers the open end 22 of the outer tube 20, as well as the inner tube 10 and the first end 31 extending therefrom. The elastic member 70 maintains a certain distance from the arc. Preferably, the distance between the upper end of the elastic member 70 and the lower end of the discharge region 130 is 4 mm to 10 mm to prevent the elastic member 70 from melting due to heat. For example, the distance between the upper end of the elastic member 70 and the lower end of the discharge region 130 is 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, or 10 mm.

[0229] The elastic member 70 can be supported by a relatively dense elastic material. For example, a sleeve made of rubber material can be used as the elastic member 70.

[0230] Please refer to Figures 14 to 16. In some embodiments, the heating component 100 includes a temperature measuring component 80 connected to the outer tube 20. The temperature measuring component 80 is used to detect the temperature of the outer tube 20.

[0231] In this way, by detecting the temperature of the outer tube 20 through the temperature measuring assembly 80 , the heating temperature of the aerosol-forming substrate 300 can be controlled more accurately.

[0232] Specifically, depending on the type of the aerosol-forming matrix 300, a good heating atomization effect can be achieved by stabilizing the temperature of the outer tube 20 at 200°C to 350°C. If the temperature of the outer tube 20 exceeds 350°C for a long time, the aerosol-forming matrix 300 may easily become gelatinized or carbonized.

[0233] Please refer to Figure 4. In some embodiments, the temperature measuring component 80 is connected to the control center 400. The temperature measuring component 80 transmits the detected temperature data to the control center 400, and adjusts the voltage or output power of the power supply 200 when the temperature is too high or insufficient to control the voltage between the first electrode 110 and the second electrode 120 to adjust the heating temperature.

[0234] In some embodiments, as shown in FIG14 , a temperature measuring component 80 is disposed on the outer wall of the outer tube 20 to detect the temperature of the outer surface of the outer tube 20 in contact with the aerosol-forming substrate 300. The temperature measuring component 80 may be a temperature-sensitive film 84 disposed on the outer tube 20. The temperature-sensitive film 84 may be attached to the outer surface of the outer tube 20 to form a predetermined temperature measurement pattern. The temperature-sensitive film 84 may also be disposed on the inner surface of the outer tube. The temperature-sensitive film 84 may be positioned axially on the outer tube 20 at the same height as the center of the discharge region 130, circumferentially around the central axis 1011 of the outer tube 20. The predetermined temperature measurement pattern may be a circular ring coaxial with the outer tube 20 and extending circumferentially therefrom. Preferably, the temperature-sensitive film 84 is positioned axially on the outer tube 20 below the discharge region 130 to facilitate accurate temperature feedback.

[0235] In some embodiments, the temperature measurement assembly 80 includes a temperature sensing portion 81 and a temperature measurement wire 83 electrically connected to the temperature sensing portion 81. The temperature sensing portion 81 is disposed on the outer tube 20, and the first electrode 110 and the second electrode 120 are both spaced apart from the temperature measurement wire 83. The temperature sensing portion 81 may be a temperature-sensitive film 84 attached to the outer wall of the outer tube 20. It should be noted that a certain insulation distance is maintained between the temperature measurement wire 83 and the first electrode 110 and the second electrode 120 to prevent high-voltage crosstalk that may cause inaccurate temperature measurement.

[0236] In some embodiments, the temperature measuring assembly 80 includes a temperature measuring probe disposed on the outer wall of the outer tube 20. The axial position of the temperature measuring probe on the outer tube 20 is lower than the discharge region 130.

[0237] In some embodiments, the temperature sensing portion 81 is a thermocouple or a temperature measuring resistor that is closely attached to or close to the outer wall of the outer tube 20 .

[0238] In some embodiments, the temperature sensing portion 81 is a thermocouple or a temperature measuring resistor disposed between the outer tube 20 and the inner tube 10 .

[0239] Please refer to FIG. 14 . In some embodiments, the heating component 100 includes a base 90 , and the inner tube 10 is mounted on the base 90 .

[0240] In this way, the base 90 can install and fix the tubular elements in the heating component 100 to enhance the structural stability.

[0241] Specifically, the portion of the outer tube 20 exposed from the base 90 is inserted into the aerosol-forming substrate 300. The height of the outer tube 20 exposed from the base 90 ranges from 14 to 20 mm. For example, the height of the outer tube 20 exposed from the base 90 ranges from 14 mm to 18 mm, 15 mm to 19 mm, 16 mm to 17 mm, etc. For another example, the height of the outer tube 20 exposed from the base 90 ranges from 14 mm, 14.5 mm, 15 mm, 16 mm, 18 mm, and 20 mm.

[0242] In one embodiment, referring to Figures 15 and 16 , the base 90 may include a first bracket 91, a second bracket 92, and a housing 93. The first bracket 91 and the second bracket 92 engage with each other, and the housing 93 covers the outside of the first and second brackets 91 and 92. The first and second brackets 91 and 92 align with the outer diameter of the insulating member 40, securing the insulating member 40 between the first and second brackets 91 and 92. The portion of the first electrode 110 encased in the insulating member 40 that is exposed outside the inner tube 10 and the end of the inner tube 10 that includes the first end face 11 are secured within the base 90. The first and second brackets 91 and 92 align with the outer diameter of the elastic member 70, securing the end of the outer tube 20 that is adjacent to the first end face 11 and the end of the conductive member 30 that includes the first end portion 31 within the base 90. A wire outlet 903 is defined in the housing 93. Referring to Figure 4 , the connection wire 33 can extend from the outlet 903 to the outside of the base 90 for connection to the power supply 200, and the temperature measurement wire 83 can also be connected to the control center 400 through the outlet 903.

[0243] Referring to FIG. 5 , a heating assembly 100 according to an embodiment of the present application includes an outer tube 20 and an inner tube 10, a first electrode 110, a second electrode 120, and a conductive member 30. The outer tube 20 is sleeved over the inner tube 10; the first electrode 110 is at least partially disposed within the inner tube 10; at least a portion of the second electrode 120 is disposed at one end of the inner tube 10, opposite and spaced from the first electrode 110. When power is applied to the first electrode 110 and the second electrode 120, plasma is generated between the second electrode 120 and the first electrode 110. The conductive member 30 is electrically connected to a power source 200 along a first direction 1010, and the first electrode 110 is electrically connected to the power source 200 along a second direction 1020, where the first direction 1010 and the second direction 1020 are different.

[0244] In this way, the conductive member 30 and the first electrode 110 are electrically connected in different directions, further reducing the possibility of discharge at the connected end.

[0245] In some embodiments, the first direction 1010 is the direction from the central axis 1011 of the inner tube 10 along the radial direction of the inner tube 10 pointing to the wall of the inner tube 10, and the second direction 1020 is the direction from the central axis 1011 of the inner tube 10 along the radial direction of the inner tube 10 pointing to the wall of the inner tube 10 on the side away from the first direction 1010.

[0246] In some embodiments, the first direction 1010 is inclined to the radial direction of the inner tube 10 and to the axial direction of the inner tube 10. The second direction 1020 is inclined to the radial direction of the inner tube 10 and to the axial direction of the inner tube 10, and points in a direction opposite to the first direction 1010.

[0247] Referring to FIG. 4 , an aerosol generating device 1000 according to an embodiment of the present application includes the heating component 100 according to any of the above embodiments.

[0248] In one embodiment, the aerosol generating device 1000 may include a battery 210 and a transformer 220. The battery 210 and the transformer 220 may serve as an external power source for the heating component 100. Referring to FIG15 , the first electrode 110 and the second electrode 120 are respectively connected to the two output terminals of the transformer 220, conducting high-voltage alternating current, forming a high-intensity electric field in the inner tube 10, thereby generating plasma, generating a relatively high temperature and heat. The heating component 100 is connected to the cover 500, and the outer tube 20 is inserted into the aerosol-forming matrix 300. Heat is transferred to the aerosol-forming matrix 300 through the inner tube 10 and the outer tube 20. The aerosol-forming matrix 300 absorbs the heat and atomizes to form an aerosol.

[0249] Implementation method 2:

[0250] 17 and 18 , the present application provides an aerosol generating device 1000 , which is used to heat an aerosol-forming substrate. The aerosol generating device 1000 includes a housing 600 , a heating component 100 , a transformer 220 , a control center 400 , and a power supply 200 .

[0251] Wherein, the heating component 100 is installed in the housing 600, and the heating component 100 can be controlled to generate plasma and be used to heat the aerosol-forming matrix to generate an aerosol. The transformer 220 is arranged adjacent to the heating component 100 in the housing 600, and the transformer 220 is electrically connected to the heating component 100. The control center 400 is installed in the housing 600 and is electrically connected to the transformer 220. The control center 400 is configured to control the transformer 220 to drive the heating component 100 to generate plasma. The power supply 200 is installed in the housing 600, and the power supply 200 is electrically connected to the control center 400. The power supply 200 can be connected to the transformer 220 through the control center 400 to supply power to the heating component 100 through the transformer 220.

[0252] In some embodiments, the aerosol-forming substrate may be a solid substrate. Specifically, the aerosol-forming substrate may be cylindrical in shape and may be a solid material in the form of granules, strips, sheets, or integral moldings made from one or more of the roots, stems, leaves, flowers, buds, and seeds of plants (e.g., tobacco). Aroma components may be further added to the solid material.

[0253] The aerosol generating device 1000 of the embodiment of the present application ensures that the components do not interfere with each other by reasonably installing the heating component 100, the transformer 220, the control center 400 and the power supply 200 in the shell 600. In particular, the heating component 100 and the transformer 220 are arranged adjacent to each other, which simplifies the wiring structure of the high-voltage line and shortens the high-voltage wiring length. This is beneficial to the miniaturized design of the aerosol generating device 1000 while ensuring the safe use of the aerosol generating device 1000.

[0254] Specifically, the housing 600 can be in a regular or irregular shape such as a cylindrical or elongated shape. The housing 600 of the present application is arranged in an elongated shape. The power supply 200 is arranged at the bottom of the housing 600. The power supply 200 can be a repeatedly rechargeable battery or a disposable battery. The power supply 200 can also be composed of multiple groups of lithium battery packs connected in series. For example, the power supply 200 of the present application is formed by two groups of lithium battery packs connected in series. The voltage of the two groups of lithium battery packs connected in series is greater than or equal to 7.4V. The control center 400 is arranged in the housing 600 near the power supply 200, and the transformer 220 is arranged on the side of the control center 400 away from the power supply 200. That is, the control center 400 is located between the power supply 200 and the transformer 220. The control center 400 is electrically connected to the power supply 200 and the transformer 220 respectively. The control center 400 can control the power supply 200 to supply power to the transformer 220, thereby controlling the transformer 220 to supply power to the heating component 100. In some embodiments, the control center 400 may be a single unit or multiple units. For example, the control center 400 may be a main control board, and there may be two of them. The two main control boards are stacked, and components of different heights are arranged according to the spacing between the two main control boards. This rational layout of the control center 400 improves the utilization of the spacing between the control centers 400, facilitates the miniaturization of the control center 400, and thus facilitates the miniaturization of the aerosol generating device 1000. With reference to FIG17 , in some embodiments, the stacking direction of the control center 400 is perpendicular to the longitudinal direction of the aerosol generating device 1000. The longitudinal direction of the aerosol generating device 1000 may be the z-direction in FIG17 , i.e., the length direction of the aerosol generating device 1000. The stacking direction of the control center 400 is the y-direction in FIG17 , i.e., the thickness direction of the aerosol generating device 1000. The x-direction in FIG17 is the width direction of the aerosol generating device 1000.

[0255] In some examples, the heating component 100 and the transformer 220 are arranged in parallel and adjacent to each other. As shown in Figure 17, the heating component 100 and the transformer 220 are arranged close to each other on the left and right. The transformer 220 can convert the low voltage provided by the power supply 200 into a high voltage at its output end, thereby powering the heating component 100. The heating component 100 generates a plasma arc, so that the heating component 100 heats the aerosol-forming matrix to generate an aerosol for the user to inhale. In this way, when the heating component 100 and the transformer 220 are connected by multiple high-voltage connecting wires, the multiple high-voltage connecting wires can be arranged in parallel. While saving installation space, it can also avoid crossing between the high-voltage connecting wires, ensure the insulation requirements between the high-voltage connecting wires, and improve the safety of the heating component 100 and the transformer 220. The parallel arrangement here can refer to the heating component 100 and the transformer 220 at least partially overlapping in the z direction or the projections of the two in the z direction overlapping. As shown in Figure 17, the heating component 100 and the transformer 220 have a pair of faces that are at least partially opposite and adjacent to each other.

[0256] In other examples, the heating component 100 can be positioned adjacent to the transformer 220, with the transformer 220 positioned near the control center 400 to be electrically connected thereto. The heating component 100 is positioned at the top of the housing 600. Thus, when the transformer 220 provides a high voltage, the heating component 100 heats the aerosol-forming substrate to generate an aerosol for inhalation by the user. In this manner, the transformer 220 is positioned between the heating component 100 and the control center 400, reducing the length of the aerosol generating device 1000 in the z-direction. While ensuring safety, the aerosol generating device 1000 can be slender, making it easier for the user to hold and improving the user experience.

[0257] In other examples, the control center 400 is arranged below the heating component 100. The control center 400 can be partially raised to form a semi-enclosed structure for the heating component 100, and the transformer 220 is arranged above the raised part. In this way, the heating component 100 and the transformer 220 are still adjacent to each other on the left and right and partially staggered. The control center 400 half-encloses the heating component 100, and the control center 400, the heating component 100 and the transformer 220 are closely matched, further making full use of the internal space of the shell 600. While ensuring safety of use, it is more conducive to the miniaturized design of the aerosol generating device 1000.

[0258] In this way, the power supply 200 is separated from the heating component 100 and the transformer 220 by the control center 400 and is set at a relatively long distance, which avoids the high-temperature components such as the heating component 100 from accumulating too much heat at the power supply 200 during operation and damaging the power supply 200, thereby increasing the service life of the power supply 200 and facilitating the temperature rise control of the power supply 200.

[0259] Further, please refer to Figure 19, the heating component 100 includes an outer tube 20, an inner tube 10, a first electrode 110 and a second electrode 120. One end of the outer tube 20 is provided with an opening, and the inner tube 10 is inserted into the outer tube 20 through the opening. At least part of the first electrode 110 is arranged in the inner tube 10, and at least part of the second electrode 120 is arranged at the end of the inner tube 10 away from the first electrode 110. The first electrode 110 and the second electrode 120 are opposite to each other and spaced apart. After the first electrode 110 and the second electrode 120 are energized, they can be controlled to form plasma, thereby generating heat to heat the aerosol-forming matrix to generate aerosol.

[0260] It should be noted that the outer tube 20 is needle-shaped to facilitate connection between the outer tube 20 and the aerosol-forming substrate. The aerosol-forming substrate can be plugged into or sleeved onto the outer tube 20. A working gas exists between the first electrode 110 and the second electrode 120. When a high voltage is applied to the first electrode 110 and the second electrode 120, the working gas between the first electrode 110 and the second electrode 120 ionizes to form a plasma, which releases heat and radiates infrared light. Heat is then transferred to the aerosol-forming substrate through the outer tube 20, and infrared light is transmitted through the outer tube 20 to radiate the aerosol-forming substrate, causing the aerosol-forming substrate to generate an aerosol.

[0261] Furthermore, the heating component 100 also includes a base 90, which is mounted on one end of the outer tube 20 with an opening, that is, the outer tube 20 is mounted on the base 90, and the base 90 includes a bottom surface 951 and a side surface 952, and the bottom surface 951 and the side surface 952 are arranged at a preset angle. In some embodiments, the base 90 is arranged adjacent to the transformer 220 in parallel or parallel to each other, or the bottom of the transformer 220 is higher than the bottom of the base 90, and the space below the transformer 220 is filled by the upwardly protruding portion of the control center 400. For example, the bottom surface 951 and the side surface 952 of the present application are arranged vertically, and can be specifically configured according to actual conditions, which is not limited here. The first electrode 110 passes through the base 90 and is electrically connected through the bottom surface 951, that is, the first electrode 110 can be electrically connected to the transformer 220 through the bottom surface 951, so that the transformer 220 can supply power to the first electrode 110. The second electrode 120 is electrically connected to the transformer 220 via a conductive wire through the side surface 952. In other words, the second electrode 120 can be electrically connected to the transformer 220 via the side surface 952. In some embodiments, the electrical leads of the first electrode 110 and the second electrode 120 are staggered above and below the connection point or outlet point of the base 90, i.e., they are not at the same height. The electrical leads herein can be the electrical connection structure connecting the first electrode 110 and the transformer 220, or the electrical connection structure connecting the second electrode 120 and the transformer 220, and can also be understood as the high-voltage connection wires described above.

[0262] In some examples, the transformer 220 includes an external surface 221, a first output end 222, and a second output end 223. The first output end 222 and the second output end 223 are located on the external surface 221. The side surface 952 is arranged opposite to the external surface 221 and is at least partially adjacent to the external surface 221. The first output end 222 is electrically connected to the second electrode 120. That is, the transformer 220 can supply power to the second electrode 120 through the first output end 222. For example, the conductive structure connected to the second electrode 120 can be a metal part or a wire. The portion extending from the outer tube 20 can include a metal shrapnel (not shown in the figure). The metal shrapnel extends from the side of the base 90 and abuts against the first output end 222, thereby enabling the first output end 222 to supply power to the second electrode 120. This method can minimize the length of the high-voltage connection line and is conducive to miniaturization. The metal shrapnel can be integrated with the metal part or connected by other methods such as welding.

[0263] In some examples, the first output end 222 can be connected to the conductive wire extending from the second electrode 120 via a connecting wire, thereby enabling the first output end 222 to supply power to the second electrode 120. The second output end 223 is electrically connected to the first electrode 110, that is, the transformer 220 can supply power to the first electrode 110 via the second output end 223, and the second output end 223 can be indirectly connected to the first electrode 110 via a connecting wire to achieve power supply.

[0264] It can be understood that the first output terminal 222 and the second output terminal 223 are arranged at intervals, which avoids the first output terminal 222 and the second output terminal 223 being too close to each other, causing a short circuit in the transformer 220, and also avoids arc discharge in the process of the transformer 220 supplying power to the heating component 100, causing damage to the heating component 100.

[0265] In other examples, the transformer 220 includes an external connection surface 221, a bottom connection surface 224, a first output terminal 222, and a second output terminal 223. The first output terminal 222 is located on the external connection surface 221, and the second output terminal 223 is located on the bottom connection surface 224 of the transformer 220. The first output terminal 222 is electrically connected to the second electrode 120, and the second output terminal 223 is electrically connected to the first electrode 110. The bottom connection surface 224 of the transformer 220 can be coplanar with the bottom surface 951 of the base 90, and the first electrode 110 located on the bottom surface 951 of the base 90 can be electrically connected to the second output terminal 223 located on the bottom connection surface 224 of the transformer 220 via a connecting wire. In this way, the first output end 222 is set on the external surface 221, and the second output end 223 is set on the bottom surface 224. Compared with the first output end 222 and the second output end 223 being both set on the external surface 221, the first output end 222 and the second output end 223 are farther apart, thereby improving the safety of the aerosol generating device 1000.

[0266] Please refer to Figure 20. In some embodiments, the transformer 220 also includes a first high-voltage connecting line 225 and a second high-voltage connecting line 226. The first high-voltage connecting line 225 is electrically connected to the first output end 222 and the second electrode 120, respectively, and the second high-voltage connecting line 226 is electrically connected to the second output end 223 and the first electrode 110, respectively. That is, the first high-voltage connecting line 225 is used to conduct the first output end 222 and the second electrode 120, so that the transformer 220 can supply power to the second electrode 120, and the second high-voltage connecting line 226 is used to conduct the second output end 223 and the first electrode 110, so that the transformer 220 can supply power to the first electrode 110.

[0267] It is worth noting that the first high-voltage connecting line 225 and the second high-voltage connecting line 226 can be wrapped with an insulating material. The insulating material can be a material that can prevent the passage of current, such as plastic, rubber, or ceramic. The first high-voltage connecting line 225 and the second high-voltage connecting line 226 are arranged in parallel. That is, the first high-voltage connecting line 225 and the second high-voltage connecting line 226 are arranged at intervals, which prevents the first high-voltage connecting line 225 and the second high-voltage connecting line 226 from crossing each other, ensures the insulation requirements of the first high-voltage connecting line 225 and the second high-voltage connecting line 226, and improves the reliability of the transformer 220.

[0268] In some examples, the external surface 221 and the side surface 952 form a predetermined angle. For example, the external surface 221 and the side surface 952 can be arranged relative to each other, and the first electrode 110 and the second output end 223 can be electrically connected via the second high-voltage connection line 226, and the second electrode 120 and the first output end 222 can be electrically connected via the first high-voltage connection line 225. In this way, the external surface 221 and the side surface 952 can be arranged relative to each other to minimize the distance between the transformer 220 and the heating component 100, that is, to reduce the length of the first high-voltage connection line 225 and the second high-voltage connection line 226.

[0269] In other examples, the external surface 221 forms a preset angle with the side surface 952. For example, the external surface 221 and the side surface 952 can be arranged perpendicularly, and the first electrode 110 and the second output end 223 can be electrically connected via the second high-voltage connection line 226, and the second electrode 120 and the first output end 222 can be electrically connected via the first high-voltage connection line 225. In this way, there is a certain distance between the first electrode 110 and the second output end 223, and a certain distance between the second electrode 120 and the first output end 222, which can ensure the insulation requirements of the first high-voltage connection line 225 and the second high-voltage connection line 226, while reducing the insulation requirements of the transformer 220 and the heating component 100.

[0270] In one embodiment, as shown in FIG20 , the electrical connection terminal of the second electrode 120 extending from the side surface 952 of the base 90 is not directly opposite the external connection surface 221. The side surface 952 from which the electrical connection terminal is extended can be substantially in the same plane as the external connection surface 221 on which the first output terminal 222 is provided, which is more convenient for installation. The aforementioned substantially in the same plane is not necessarily coplanar in the strict sense. The two can have a certain distance difference, as long as they are substantially parallel.

[0271] It is understood that an insulation device is provided between the housing 600 and the transformer 220 to prevent the high voltage from the transformer 220 from being transmitted to the housing 600 and causing leakage, thereby improving the safety of the aerosol generating device 1000. Insulation material is provided between the housing 600 and the heating element 100 to prevent the high temperature generated by the heating element 100 from being transmitted to the housing 600 and possibly scalding the user, thereby improving the performance of the aerosol generating device 1000.

[0272] Please refer to Figure 19 and Figure 20. In some embodiments, the heating component 100 further includes a temperature measuring component 80. The temperature measuring component 80 is used to detect the temperature of the outer tube 20.

[0273] Specifically, depending on the type of aerosol-forming substrate, maintaining the outer tube 20 at a temperature between 200°C and 350°C can achieve a good heating and atomization effect. Temperatures exceeding 350°C can easily lead to gelatinization and carbonization of the aerosol-forming substrate. The temperature measuring assembly 80 is disposed on the outer wall of the outer tube 20 and can detect the temperature of the outer surface of the outer tube 20 that contacts the aerosol-forming substrate.

[0274] In some embodiments, the temperature measuring component 80 is connected to the control center 400, and the temperature measuring component 80 transmits the detected temperature data to the control center 400, and adjusts the voltage or output power of the transformer 220 when the temperature is too high or insufficient to control the voltage between the first electrode 110 and the second electrode 120 and adjust the heating temperature.

[0275] In some embodiments, the temperature measuring component 80 is a temperature measuring film disposed on the wall of the outer tube 20. The temperature measuring film can cover the outer surface of the outer tube 20 to form a predetermined temperature measurement pattern. The temperature measuring film can be positioned at the same height as the gap between the first electrode 110 and the second electrode 120, encircling the central axis of the outer tube 20. The predetermined temperature measurement pattern can be an annular ring coaxial with the outer tube 20 and extending in the axial direction of the outer tube 20. Preferably, the temperature measuring film is positioned below the gap between the first electrode 110 and the second electrode 120, that is, below the discharge zone.

[0276] In some embodiments, the temperature measuring assembly 80 includes a temperature measuring probe disposed on the outer wall of the outer tube 20. The axial position of the temperature measuring probe on the outer tube 20 is lower than the discharge region between the first electrode 110 and the second electrode 120.

[0277] In some embodiments, the heating component 100 further includes a temperature measuring wire 83, which is connected to the temperature measuring component 80 and the control center 400, respectively. The temperature measuring wire 83 can transmit the temperature data detected by the temperature measuring component 80 to the control center 400. The temperature measuring component 80 is disposed on or close to the outer tube 20, and the high-voltage connecting wires connected to the first electrode 110 and the second electrode 120 are spaced apart from the temperature measuring wire 83. It should be noted that a certain insulation distance is maintained between the temperature measuring wire 83 and the high-voltage connecting wire to avoid inaccurate temperature measurement caused by high-voltage crosstalk.

[0278] In some embodiments, the temperature measuring component 80 is a thermocouple or a temperature measuring resistor that is closely attached to the outer wall of the outer tube 20 or close to the outer wall.

[0279] In some embodiments, the temperature measuring component 80 is a thermocouple or a temperature measuring probe disposed inside the outer tube 20 .

[0280] Referring to FIG. 20 , in some embodiments, the control center 400 may include a charging port 401. The charging port 401 is embedded in the housing 600 and may be a commonly used coupling interface such as a Lightning port, a MicroUSB port, or a Type-C port. The user may couple a charger to the charging port 401 to charge the aerosol generating device 1000.

[0281] 20 , in some embodiments, the aerosol generating device 1000 further includes control keys 610 and a display 620 .

[0282] Specifically, a control key 610 and a display 620 are mounted outside the housing 600 and are electrically connected to the control center 400. The control key 610 can be push-type or touch-type. The control key 610 is used to control the transformer 220 through the control center 400 to supply power to the heating component 100, so that the heating component 100 can heat the aerosol-forming substrate to generate an aerosol. The display 620 can be a display device such as an LED display screen or a liquid crystal display 620. The display 620 is embedded in the housing 600 and can display data such as the remaining power of the power supply 200 and the heating temperature, which can be viewed by the user through the display 620.

[0283] In this way, the aerosol generating device 1000 is connected to the control center 400 by setting a control key 610, so that the user can control the heating component 100 to heat the aerosol-forming matrix through the control key 610, and is connected to the control center 400 by setting a display 620, so that the display 620 can display the usage data of the aerosol generating device 1000 such as the remaining power of the power supply 200 and the heating temperature of the heating component 100. The user can use the aerosol generating device 1000 according to the data displayed on the display 620.

[0284] Referring to FIG. 20 , in some embodiments, the aerosol generating device 1000 further includes an extractor 501 .

[0285] Specifically, the extractor 501 is mounted on the housing 600. The extractor 501 can have a regular or irregular shape, such as a cylinder or an elongated strip. The specific shape of the extractor 501 can be configured according to the shape of the housing 600 and is not limited here. The aerosol generating device 1000 is confined within the channel of the extractor 501. After the extractor 501 is mounted on the housing 600, the outer tube 20 is located within the channel. The user can insert the aerosol-forming substrate into the channel and connect it to the outer tube 20. Once the aerosol-forming substrate is completely consumed, the extractor 501 can be used to completely remove the remaining aerosol-forming substrate. This reduces the difficulty of cleaning the aerosol generating device 1000 and improves the user experience.

[0286] Referring to FIG. 20 , in certain embodiments, the aerosol generating device 1000 further includes a mounting bracket 630 , which is located within the housing 600 and is used to support the heating component 100 , the transformer 220 , the control center 400 , and the power supply 200 within the housing 600 . The mounting bracket 630 is formed with a plurality of accommodating spaces. For example, the mounting bracket 630 is sequentially formed with a first accommodating space, a second accommodating space, and a third accommodating space. The power supply 200 is mounted in the first accommodating space, the control center 400 is mounted in the second accommodating space, and the heating component 100 and the transformer 220 are mounted in the third accommodating space. The mounting bracket 630 can support the heating component 100 , the transformer 220 , the control center 400 , and the power supply 200 in layers.

[0287] In this way, the aerosol generating device 1000 supports the heating component 100, the transformer 220, the control center 400 and the power supply 200 by setting up a mounting bracket 630, thereby avoiding the displacement of the heating component 100, the transformer 220, the control center 400 and the power supply 200 when the user uses the aerosol generating device 1000. On the one hand, it reduces the shaking of internal components and improves the user experience of the aerosol generating device 1000. On the other hand, it reduces the collision between the heating component 100, the transformer 220, the control center 400 and the power supply 200 and improves the service life of the aerosol generating device 1000.

[0288] Throughout this specification, reference to terms such as "one embodiment," "certain embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with the embodiment or example is 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. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0289] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A heating component, characterized in that: include: An outer tube and an inner tube, wherein the outer tube is sleeved outside the inner tube; a first electrode, the first electrode being at least partially disposed in the inner tube; a second electrode, at least a portion of which is disposed at one end of the inner tube and is disposed opposite to and spaced from the first electrode, wherein plasma is generated between the second electrode and the first electrode when the first electrode and the second electrode are energized; and A conductive member, the conductive member includes a first end and a second end connected to the first end, the second end is connected to the second electrode, the first end is used to be electrically connected to an external power source, and the first end and the first electrode are arranged at intervals along the axial direction of the inner tube at positions where they are exposed from the inner tube.

2. The heating component according to claim 1, characterized in that: The inner tube includes a first end surface and a second end surface opposite to the first end surface, the first electrode is exposed from the inner tube at the first end surface, and the first end portion is at least partially located between the first end surface and the second end surface.

3. The heating component according to claim 2, characterized in that: The first electrode is columnar as a whole; or, the first electrode includes a discharge portion and a conductive portion connected to the discharge portion, the discharge portion is located in the inner tube, and the conductive portion extends from the first end surface outside the inner tube.

4. The heating component according to claim 2, characterized in that: The heating component includes an insulating member connected to the inner tube, and at least a portion of the insulating member is located between the first end portion and the first end surface; or, The heating component includes an insulating member sleeved outside the inner tube, and at least a portion of the insulating member is located between the first end portion and the first end surface.

5. The heating component according to claim 4, characterized in that: The end portion of the inner tube having the first end surface is inserted into the insulating member, and the first electrode is disposed through the insulating member.

6. The heating component according to claim 5, characterized in that: The insulating member includes a first insulating portion and a second insulating portion connected to the first insulating portion, the cross-sectional area of ​​the first insulating portion is smaller than the cross-sectional area of ​​the second insulating portion, the end of the inner tube having the first end face is inserted into the first insulating portion, and the first electrode is penetrated through the second insulating portion.

7. The heating component according to claim 5, characterized in that: The insulating member covers a portion of the first electrode located at the first end surface.

8. The heating component according to claim 4, characterized in that: The heating component includes a connector connecting the first electrode away from the second electrode, the connector is used to be electrically connected to the external power source, and the connector is located on a side of the insulating member away from the first end.

9. The heating component according to claim 2, characterized in that: The second electrode abuts against the second end surface.

10. The heating component according to claim 9, characterized in that: The second electrode includes a mounting portion and a protrusion formed on the mounting portion, wherein the protrusion extends into the inner tube and faces the first electrode.

11. The heating component according to any one of claims 1 to 10, characterized in that: Along the axial direction of the inner tube, a distance between the first end and a position where the first electrode is exposed from the inner tube is greater than or equal to 2 mm.

12. The heating component according to any one of claims 1 to 10, characterized in that: The shortest distance between the conductive member and a position where the first electrode is exposed from the inner tube is greater than or equal to 2 mm.

13. The heating component according to any one of claims 1 to 10, characterized in that: The heating component includes a connection wire connected to the first end, the connection wire is used to be electrically connected to the external power source, and an extension direction of the connection wire forms a preset angle with the axial direction of the inner tube.

14. The heating component according to claim 1, characterized in that: The first electrode is columnar, and the diameter of the first electrode is in the range of 0.4 mm to 1.0 mm.

15. The heating component according to claim 1, characterized in that: The discharge arc length between the second electrode and the first electrode is 2mm≤L≤10mm.

16. The heating component according to claim 1, characterized in that: The discharge arc length between the second electrode and the first electrode is 6mm<L≤10mm.

17. The heating component according to claim 1, characterized in that: The conductive member is in a tubular shape and is sleeved outside the inner tube. The first end and the second end are two axial ends of the conductive member respectively.

18. The heating component according to claim 17, characterized in that: The conductive member is formed with a hollow portion, and the hollow portion is located between the first end portion and the second end portion.

19. The heating component according to claim 17, characterized in that: The conductive member is in close contact with the outer wall of the inner tube, or a gap between the conductive member and the outer wall of the inner tube is less than or equal to 0.1 mm.

20. The heating component according to claim 17, characterized in that: The wall thickness of the conductive member ranges from 0.05 mm to 0.2 mm.

21. The heating component according to claim 1, characterized in that: The heating component comprises an infrared radiation film, and the infrared radiation film is arranged on the inner tube, the outer tube and / or the conductive member.

22. The heating component according to claim 1, characterized in that: The outer tube is used to contact the atomized medium, the second electrode and the second end are both located in the outer tube, the first end is at least partially located outside the outer tube or the end surface of the first end is substantially flush with the lower end surface of the outer tube.

23. The heating component according to claim 22, characterized in that: A heat-insulating gap is formed between the inner tube and the conductive member and the inner wall surface of the outer tube.

24. The heating component according to claim 23, characterized in that: The range of the thermal insulation gap is 0.05mm-0.3mm.

25. The heating component according to claim 22, characterized in that: The heating component comprises an elastic member, the elastic member is sleeved outside the end of the outer tube away from the second electrode, and the inner tube passes through the elastic member.

26. The heating component according to claim 22, characterized in that: The heating component includes a temperature measuring component connected to the outer tube, and the temperature measuring component is used to detect the temperature of the outer tube.

27. The heating component according to claim 26, characterized in that: The temperature measuring component is a temperature measuring film arranged on the wall of the outer tube, or a temperature measuring probe arranged on the outer wall of the outer tube.

28. A heating component, characterized in that: include: An outer tube and an inner tube, wherein the outer tube is sleeved outside the inner tube; a first electrode, the first electrode being at least partially disposed in the inner tube; a second electrode, at least a portion of which is disposed at one end of the inner tube and is disposed opposite to and spaced from the first electrode, wherein plasma is generated between the second electrode and the first electrode when the first electrode and the second electrode are energized; and A conductive member is connected to an external power source along a first direction, and the first electrode extends along a second direction and is connected to the external power source, and the first direction is different from the second direction.

29. An aerosol generating device for heating an aerosol-forming substrate, characterized in that: include case; The heating component according to any one of claims 1 to 28, installed in the housing, is used to controllably generate plasma and heat the aerosol-forming substrate; A transformer, installed in the housing and disposed adjacent to the heating component and electrically connected to the heating component; A control center is installed in the housing and electrically connected to the transformer, and the control center is configured to control the transformer to drive the heating component to generate plasma; A power source is installed in the shell and electrically connected to the control center to provide power for the aerosol generating device.

30. The aerosol generating device according to claim 29, characterized in that The heat generating component and the transformer are arranged in parallel and adjacent to each other.

31. The aerosol generating device according to claim 29, characterized in that The heat generating component is adjacent to the transformer above and below.

32. The aerosol generating device according to claim 29, characterized in that The heating component comprises: An outer tube, one end of which is open; an inner tube, at least a portion of which is inserted into the outer tube through the opening; a first electrode at least partially disposed within the inner tube; The second electrode is at least partially disposed at an end of the inner tube away from the first electrode, and is disposed opposite to and spaced from the first electrode. The first electrode and the second electrode can be controlled to form plasma after being energized.

33. The aerosol generating device according to claim 32, characterized in that The heating component also includes: A base, the base at least comprising a bottom surface and a side surface at a predetermined angle, the base being mounted on one end of the outer tube having the opening; The first electrode is electrically connected to the bottom surface, and the second electrode is electrically connected to the side surface.

34. The aerosol generating device according to claim 33, characterized in that The transformer comprises: An external surface and a first output end and a second output end located on the external surface, the side surface is at least partially opposite to and adjacent to the external surface, the first output end is electrically connected to the second electrode, and the second output end is electrically connected to the first electrode.

35. The aerosol generating device according to claim 33, characterized in that The transformer comprises: An external connection surface, a bottom connection surface, a first output end and a second output end, wherein the first output end is located at the external connection surface, the second output end is located at the bottom connection surface of the transformer, the first output end is electrically connected to the second electrode, and the second output end is electrically connected to the first electrode.

36. The aerosol generating device according to claim 34 or 35, characterized in that The transformer also includes: A first high-voltage connecting line, electrically connected to the first output terminal and the second electrode respectively; A second high voltage connecting line is electrically connected to the second output terminal and the first electrode, and the first high voltage connecting line is electrically connected to the second output terminal and the first electrode. The second high voltage connecting lines are arranged in parallel.

37. The aerosol generating device according to claim 34, characterized in that The circumscribed surface forms a preset angle with the side surface.

38. The aerosol generating device according to claim 32, characterized in that The heating component also includes a temperature measuring component, and the temperature measuring component is used to detect the temperature of the outer tube.

39. The aerosol generating device according to claim 30, characterized in that The control center is arranged adjacent to the heating component, and the power supply is located on a side of the control center away from the heating component.

40. The aerosol generating device according to claim 30, characterized in that The control center is located below the heating component and is at least partially protruding to form a half-enclosed structure for the heating component.

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