Heating components and aerosol forming devices

Abstract

The present application provides a heating element and an aerosol-forming device. The heating element includes a heating element configured to be inserted into and heat an aerosol-forming substrate. The heating element comprises a first extension portion spaced apart from one another and a second extension portion connected to one end of the first extension portion. Both the first extension portion and the second extension portion are configured to at least partially insert into the aerosol-forming substrate and generate heat when energized to heat the aerosol-forming substrate. The heating element in the heating element can be directly inserted into the aerosol-forming substrate, providing excellent stability and significantly improving the uniformity of heating the aerosol-forming substrate.

Description

Technical Field

[0001] The present invention relates to the technical field of heat-not-burn smoking equipment, and in particular to a heating component and an aerosol forming device. Background Art

[0002] As a substitute for cigarettes, electronic cigarettes are gaining more and more attention and favor due to their advantages such as safety, convenience, health and environmental protection. For example, heat-not-burn electronic cigarettes, also known as heat-not-burn aerosol-forming devices.

[0003] Existing heat-not-burn aerosol-forming devices typically use either tubular peripheral heating or centrally embedded heating. Tubular peripheral heating involves surrounding a heating tube around an aerosol-forming substrate (e.g., tobacco) to heat the substrate, while centrally embedded heating involves inserting a heating tube into the substrate to heat the substrate. Heating components are widely used due to their simplicity of manufacture and ease of use. Current heating components primarily utilize ceramic or insulated metal as a substrate, upon which a resistive heating circuit is printed or plated. This circuit is then fixed to the substrate after high-temperature treatment.

[0004] However, since the resistive heating circuit on the existing heating component is a thin film that is printed or plated on the substrate later, during the use of the heating component repeatedly inserted into the aerosol-forming matrix, due to the curved shape of the substrate, the resistive heating circuit is easily detached from the substrate when subjected to high-temperature heating, resulting in poor stability. In addition, during the heating process, the resistive heating circuit only contacts the aerosol-forming matrix on the side of the substrate where the resistive heating circuit is provided, but not the aerosol-forming matrix on the back side of the substrate, resulting in poor heating uniformity of the aerosol-forming matrix. Summary of the Invention

[0005] The present application provides a heating component and an aerosol forming device. The heating component can solve the problem that the resistance heating circuit on the existing heating component is easy to fall off from the substrate when heated at high temperature, has poor stability, and during the heating process, the resistance heating circuit has poor heating uniformity on the aerosol forming matrix.

[0006] In order to solve the above technical problems, a technical solution adopted in this application is: providing a heating component, which includes a heating body, which is used to insert into and heat the aerosol-forming matrix, and the heating body includes a first extension part arranged at intervals and a second extension part connected to one end of the first extension part, and the first extension part and the second extension part are both used to at least partially insert into the aerosol-forming matrix and generate heat when power is applied to heat the aerosol-forming matrix.

[0007] The two opposite surfaces of the first extension and the second extension for inserting the aerosol-forming substrate are in contact with the aerosol-forming substrate.

[0008] The first extension portion and the second extension portion are arranged in parallel and spaced apart, and the heating connection further includes a third extension portion for fully inserting and heating the aerosol-forming matrix, and the adjacent ends of the first extension portion and the second extension portion are connected through the third extension portion.

[0009] The heating component further includes two electrodes, one of which is arranged at an end of the first extension portion away from the third extension portion, and the other is arranged at an end of the second extension portion away from the third extension portion.

[0010] The heating element is a heating plate made of conductive ceramic, and the distance between the first extension portion and the second extension portion on the heating plate is 0.25-0.35 mm.

[0011] The heating element is a heating rod made of conductive ceramic, and the distance between the first extension portion and the second extension portion on the heating rod is 0-1 mm.

[0012] Wherein, a supporting ceramic is provided between the first extension portion and the second extension portion, and the supporting ceramic is bonded to the first extension portion and the second extension portion through glass ceramic.

[0013] Among them, the heating element includes a main component and a crystal component; the main component is one or more of manganese, strontium, lanthanum, tin, antimony, zinc, bismuth, silicon, and titanium, and the crystal component is one or more of lanthanum manganate, strontium lanthanum manganate, tin oxide, zinc oxide, antimony oxide, bismuth oxide, silicon oxide, and yttrium oxide.

[0014] The heating component also includes a fixed outer jacket which is sleeved on the outer side of the heating element.

[0015] The fixed outer shell is made of metal, and an insulating medium layer is provided between the fixed outer shell and the heating element.

[0016] Part of the surface of the first extension portion and the second extension portion for inserting into the mounting seat has a first fixing structure, or part of the surface of the fixing sleeve for inserting into the mounting seat has a first fixing structure.

[0017] The heating component also includes a protective layer, which is coated on the surface of the heating element and covers the two electrodes.

[0018] Wherein, the protective layer is a glass glaze layer.

[0019] The first surface of the first extension portion and the second surface opposite to the first surface are both provided with electrodes, and the first surface of the second extension portion and the second surface opposite to the first surface are both provided with electrodes.

[0020] The first extension portion has a first inner surface and a first outer surface, the second extension portion has a second inner surface and a second outer surface, the electrode on the first extension portion extends from the first outer surface to the first inner surface, and the electrode on the second extension portion extends from the second outer surface to the second inner surface.

[0021] Among them, the heating body includes a first heating area and a second heating area connected to the first heating area, the ratio of the heating temperature of the first heating area to the heating temperature of the second heating area of the heating body is greater than 2, and the two electrodes are arranged in the second heating area of the heating body.

[0022] The width and / or thickness of the parts of the first extension portion and the second extension portion located in the second heating zone are the same as the width and / or thickness of the parts of the first extension portion and the second extension portion located in the first heating zone.

[0023] In which, the width and / or thickness of the parts of the first extension part and the second extension part located in the second heating zone are greater than the width and / or thickness of the parts of the first extension part and the second extension part located in the first heating zone, so that the temperature of the first heating zone of the heating body is greater than the temperature of the second heating zone of the heating body.

[0024] In which, the heating element is integrally formed, and the parts of the first extension part and the second extension part located in the second heating zone and the parts of the first extension part and the second extension part located in the first heating zone are made of materials with different resistivity, so that the temperature of the first heating zone of the heating element is greater than the temperature of the second heating zone of the heating element.

[0025] In order to solve the above technical problems, another technical solution adopted in this application is: to provide an aerosol forming device, which includes a shell and a heating component and a power supply component arranged in the shell; wherein the power supply component is connected to the heating component for supplying power to the heating component, and the heating component is the heating component involved above.

[0026] The heating component and aerosol-forming device provided in the present application include a heating element for inserting into and heating an aerosol-forming matrix, the heating element including a first extension portion and a second extension portion connected to one end of the first extension portion, and the first extension portion and the second extension portion are both used to at least partially insert into the aerosol-forming matrix and generate heat when powered on to heat the aerosol-forming matrix. Compared with the existing heating elements silk-screened on ceramic substrates, the heating element of the present application can be directly and independently inserted into the aerosol-forming matrix, and will not fall off from the ceramic substrate and cause failure when subjected to high-temperature heating, thereby greatly improving the stability of the heating component; and because the heating element is directly inserted into and heats the aerosol-forming matrix, the heating uniformity of the aerosol-forming matrix is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1aA schematic structural diagram of a heating component provided in the first embodiment of the present application;

[0028] Figure 1b A schematic structural diagram of a heating component provided in the second embodiment of the present application;

[0029] Figure 1c A schematic diagram of a heating element provided in an embodiment of the present application being inserted into an aerosol-forming substrate;

[0030] Figure 2 for Figure 1b a disassembled schematic diagram of the structure shown;

[0031] Figure 3a A schematic structural diagram of a heating component provided in the third embodiment of the present application;

[0032] Figure 3b A schematic diagram of inserting a heating component into an aerosol-forming substrate according to another embodiment of the present application;

[0033] Figure 4 for Figure 3a a disassembled schematic diagram of the structure shown;

[0034] Figure 5 A schematic plan view of a heating component provided in a specific embodiment of the present application;

[0035] Figure 6 A schematic plan view of a heating component provided in another specific embodiment of the present application;

[0036] Figure 7 A schematic plan view of a heating component provided in another specific embodiment of the present application;

[0037] Figure 8 A schematic diagram of the dimensions of a heating plate provided in one embodiment of the present application;

[0038] Figure 9 A schematic diagram of the dimensions of a heating rod provided in one embodiment of the present application;

[0039] Figure 10a A schematic diagram of a structure in which electrodes provided in one embodiment of the present application are arranged on two opposite surfaces of a heating element;

[0040] Figure 10b A schematic structural diagram of a heating rod provided in one embodiment of the present application;

[0041] Figure 10c This is an E-direction view of a heating component provided in one embodiment of the present application;

[0042] Figure 11 A side view of a heating component provided in one embodiment of the present application;

[0043] Figure 12 A schematic diagram of the positions of the first heating zone and the second heating zone on the heating plate provided in one embodiment of the present application;

[0044] Figure 13 A schematic diagram of the positions of the first heating area and the second heating area on the heating rod provided in one embodiment of the present application;

[0045] Figure 14 This is a schematic diagram of the structure after the heating element and the mounting base are assembled according to an embodiment of the present application;

[0046] Figure 15 A schematic structural diagram of a fixed jacket provided in one embodiment of the present application;

[0047] Figure 16 A schematic structural diagram of a fixed outer sleeve provided in another embodiment of the present application;

[0048] Figure 17 A schematic diagram of the structure of a heating component including a fixed outer shell provided in an embodiment of the present application;

[0049] Figure 18 for Figure 17 A schematic diagram of the structure shown before assembly;

[0050] Figure 19 A schematic structural diagram of a heating component including a fixed outer shell provided in another embodiment of the present application;

[0051] Figure 20 for Figure 19 A schematic diagram of the structure shown before assembly;

[0052] Figure 21 A schematic structural diagram of a mounting base provided in one embodiment of the present application;

[0053] Figure 22 This is a schematic diagram of the structure after the mounting base and the heating plate are assembled according to an embodiment of the present application;

[0054] Figure 23 This is a schematic diagram of the structure after the mounting base and the heating rod are assembled according to an embodiment of the present application;

[0055] Figure 24 This is a schematic structural diagram of the mounting base and the heating rod after assembly according to another embodiment of the present application;

[0056] Figure 25 A front view of the mounting base and the heating component after assembly according to an embodiment of the present application;

[0057] Figure 26 A schematic structural diagram of an aerosol forming device provided in one embodiment of the present application. DETAILED DESCRIPTION

[0058] The following will be combined with the accompanying drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0059] The terms "first," "second," and "third" in this application are used only for descriptive purposes and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of such features. In the description of this application, "multiple" means at least two, for example, two, three, etc., unless otherwise specifically defined. All directional indications in the embodiments of this application (such as up, down, left, right, front, back...) are only used to explain the relative positional relationship, movement, etc. between the components under a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications also change accordingly. In addition, the terms "including" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units that are not listed, or may optionally include other steps or units that are inherent to these processes, methods, products, or devices.

[0060] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0061] The present application is described in detail below with reference to the accompanying drawings and embodiments.

[0062] See also Figures 1a to 4 ,in, Figure 1a A schematic structural diagram of a heating component provided in the first embodiment of the present application; Figure 1b A schematic structural diagram of a heating component provided in the second embodiment of the present application; Figure 1c A schematic diagram of a heating element provided in an embodiment of the present application being inserted into an aerosol-forming substrate; Figure 2 for Figure 1b a disassembled schematic diagram of the structure shown; Figure 3aA schematic structural diagram of a heating component provided in the third embodiment of the present application; Figure 3b A schematic diagram of inserting a heating component into an aerosol-forming substrate according to another embodiment of the present application; Figure 4 for Figure 3a In this embodiment, a heating element 10 is provided, which is specifically configured to be inserted into and heat an aerosol-forming substrate 102. For example, in one embodiment, the heating element 10 is specifically configured to be inserted into tobacco to heat the tobacco, and the following embodiments will use this as an example. It will be understood that in this embodiment, the aerosol-forming substrate 102 may specifically be tobacco.

[0063] Specifically, the heating component 10 includes a heating element 11; in a specific embodiment, the heating element 11 can be a self-supporting structure, that is, the heating element 11 can exist independently without relying on other carriers; compared with the existing heating components formed by printing or coating the resistive heating elements on the substrate, the heating element 11 with a self-supporting structure can be directly and independently inserted into the aerosol-forming matrix 102, and will not fall off from the ceramic substrate or the metal substrate when subjected to high-temperature heating, which greatly improves the stability of the heating component 10; and because the heating element 11 is a self-supporting structure and does not require a substrate, the two opposite surfaces of the heating element 11 can be in direct contact with the tobacco, which not only has a high energy utilization rate, but also heats the tobacco more evenly, and the preset temperature field boundary is clear, especially the low-voltage start-up facilitates instant power control and design.

[0064] The material of the heating element 11 can be conductive ceramic. Compared with the existing metal material, the heating element 11 of the ceramic material has a higher conductivity efficiency and a more uniform temperature generated by heating. The ceramic heating element 11 can be adjusted and designed at 3-4 watts, and the conductivity can reach 1*10 -4 Ohm-1*10 -6 Ohm, bending strength is greater than 40MPa, and fire resistance is higher than 1200℃; at the same time, the ceramic heating element 11 has the characteristic of full-range starting voltage.

[0065] Specifically, the electromagnetic heating wavelength of the material of the ceramic heating element 11 is a mid-infrared wavelength, which is conducive to atomizing the e-liquid and improving the taste; in addition, the crystal phase structure of the ceramic heating element 11 is a high-temperature stable oxide ceramic. Since oxide ceramics have good fatigue resistance, high strength and high density, they can effectively avoid the volatilization of harmful heavy metals and dust problems, thereby greatly improving the service life of the heating element 11.

[0066] It can be understood that the above-mentioned use of a whole ceramic heating element 11 can reduce the area of the highest temperature hot spot, eliminate the risk of fatigue cracking and increased fatigue resistance, and has better consistency; and due to the high strength of the ceramic heating material and the smoothness brought by the microcrystalline structure, the surface of the heating element 11 is easier to clean and less likely to stick; in addition, the ceramic heating element 11 is manufactured using a ceramic production process, and the ceramic production process mainly includes raw material mixing, molding and sintering, and cutting processes. The process is relatively simple and easy to control, with low cost, which is conducive to the promotion of production and improvement of economic benefits.

[0067] Specifically, the conductive ceramic heating element 11 includes a main component and a crystalline component. The main component is used to conduct electricity and give the conductive ceramic heating element 11 a certain resistance. It can be one or more of manganese, strontium, lanthanum, tin, antimony, zinc, bismuth, silicon, and titanium. The crystalline component, i.e., the main ingredient of the ceramic material, can be one or more of lanthanum manganate, strontium lanthanum manganate, tin oxide, zinc oxide, antimony oxide, bismuth oxide, silicon oxide, and yttrium oxide. In other embodiments, the heating element 11 can also be made of a metal alloy or a ceramic alloy made of sendust.

[0068] For details, see Figure 1a In one embodiment, the heating component 10 specifically includes a first extension portion 111 and a second extension portion 112 connected to the first extension portion 111, and in a specific embodiment, the first extension portion 111 and the second extension portion 112 are both used to at least partially insert into the aerosol-forming matrix 102 and generate heat when powered to heat the aerosol-forming matrix 102; it can be understood that the first extension portion 111 and the second extension portion 112 can be independently and directly inserted into the aerosol-forming matrix 102, while the existing heating element that is silk-screened or plated on a ceramic substrate needs to be inserted into the aerosol-forming matrix 102 with the help of a ceramic substrate, and it itself cannot be directly inserted into the aerosol-forming device, and the first extension portion 111 and the second extension portion 112 provided in the present application will not fall off from the ceramic substrate when subjected to high-temperature heating and cause failure, thereby greatly improving the stability of the heating component 10.

[0069] Specifically, the two opposite surfaces of the first extension portion 111 and the second extension portion 112 used to insert the aerosol-forming matrix 102 are in contact with the aerosol-forming matrix 102; it can be understood that since the heating element 11 of the present application is directly inserted into the aerosol-forming matrix 102, it does not require the aid of a substrate. Therefore, at least two opposite surfaces of the first extension portion 111 and the second extension portion 112 of the heating element 11 can be directly in contact with the aerosol-forming matrix 102, thereby greatly improving the heat utilization and heating efficiency.

[0070] In another embodiment, see Figure 1b and Figure 3a The heating component 10 further includes a third extension portion 113 for fully inserting and heating the aerosol-forming substrate 102. Specifically, in this embodiment, the first extension portion 111 and the second extension portion 112 are arranged in parallel and spaced apart, and the adjacent ends of the first extension portion 111 and the second extension portion 112 are connected by the third extension portion 113. The adjacent ends of the first extension portion 111 and the second extension portion 112 specifically refer to the ends that first contact and insert into the aerosol-forming substrate 102. It is understood that the first extension portion 111, the second extension portion 112, and the third extension portion 113 form a generally U-shaped structure. In a specific embodiment, the first extension portion 111, the second extension portion 112, and the third extension portion 113 are integrally formed and sintered from conductive ceramic. Specifically, the heating element substrate can be cut by laser cutting to form the slot 114, thereby obtaining the heating element 11 having the first extension portion 111, the second extension portion 112, and the third extension portion 113. It is understood that the heating element 11 can also be directly sintered.

[0071] Specifically, the shapes of the first extension portion 111, the second extension portion 112 and the third extension portion 113 are not limited and can be designed according to actual needs. Specifically, the first extension portion 111 and the second extension portion 112 are long strips, and the width of the third extension portion 113 gradually decreases from one end close to the first extension portion 111 to the end away from the first extension portion 111, thereby forming a pointed end to facilitate the insertion of the heating element 11 into the tobacco. In this embodiment, the first extension portion 111 and the second extension portion 112 are rectangular parallelepipeds, and the third extension portion 113 is roughly V-shaped. In other embodiments, the third extension portion 113 can also be U-shaped or an isosceles trapezoid, or other shapes whose width gradually decreases from one end close to the first extension portion 111 and the second extension portion 112 to the direction away from the first extension portion 111 and the second extension portion 112. In this embodiment, the slot 114 is a rectangle of uniform width or has a convex guide arc formed at one end of the rectangle near the third extension portion 113. Specifically, the slot 114 is an axisymmetric structure, with its length direction parallel to its central axis. The first extension portion 111 and the second extension portion 112 are spaced apart and arranged in parallel with their length directions parallel to the central axis of the slot 114. The width directions of the first extension portion 111, the second extension portion 112, and the third extension portion 113 are perpendicular to the central axis of the slot 114. The heating element 11 is a structure symmetrical about the central axis of the slot 114, that is, the first extension portion 111, the second extension portion 112, and the third extension portion 113 are all symmetrical about the central axis of the slot 114. This structure ensures that the temperatures at the corresponding positions in the width direction of the first extension portion 111, the second extension portion 112, and the third extension portion 113 on both sides of the slot 114 are consistent, resulting in a better smoke taste.

[0072] In other embodiments, see Figure 5 , Figure 6 This is a schematic plan view of a heating component provided by a specific embodiment of the present application; the first extension portion 111 and the second extension portion 112 are similarly arranged side by side, but the width of the slot 114 can be a centrosymmetrical structure, with the width gradually decreasing from the end away from the third extension portion 113 to the end closer to the third extension portion 113. The outer edges of the corresponding first extension portion 111 and second extension portion 112 are parallel, and the width gradually increases from the end away from the third extension portion 113 to the end of the third extension portion 113. This slightly increases the resistance of the end away from the third extension portion 113 to balance the resistance between the end and the third extension portion 113 (the third extension portion 113 has a larger resistance), resulting in more balanced overall heating.

[0073] In other embodiments, see Figure 6 , Figure 6 A planar schematic diagram of a heating component provided for another specific embodiment of the present application; the groove 114 can be a centrally symmetrical structure that gradually increases from the end away from the third extension portion 113 to the end of the third extension portion 113, and the corresponding outer sides of the first extension portion 111 and the second extension portion 112 are parallel, and the width of the first extension portion 111 and the second extension portion 112 gradually decreases from the end away from the third extension portion 113 to the end of the third extension portion 113, so that the resistance near the upper end of the heating element 11 is larger, so as to meet the design requirements of the heating method in which the high temperature of the heating element 11 is concentrated in the middle and upper sections.

[0074] In other embodiments, see Figure 7 , Figure 7 A planar schematic diagram of a heating component provided for another specific embodiment of the present application; the first extension portion 111 and the second extension portion 112 are rectangular, but are not arranged in parallel, but are arranged at a certain angle, such as 3-10 degrees. At this time, the width of the groove 114 can be a centrally symmetrical structure that gradually decreases from the end away from the third extension portion 113 to the end of the third extension portion 113.

[0075] In one embodiment, see Figure 8 , Figure 8 This is a schematic diagram of the dimensions of the heating plate provided in one embodiment of the present application; the heating element 11 may be Figure 8 The plate-shaped portion shown may specifically be a heating plate made of conductive ceramic. In this embodiment, the spacing between the first extension portion 111 and the second extension portion 112 is less than one tenth of the width of the entire heating element 11. The spacing L1 between the first extension portion 111 and the second extension portion 112 may specifically be 0.25-0.35 mm, so as to effectively ensure the strength of the heating element 11 while avoiding short circuit problems.

[0076] Specifically, the resistivity of the ceramic used in the heating plate can be 5*10-5 Ohm, the design power can be 2 watts, and the resistance can be 0.71 ohms; specifically, the heating plate can be a single series type (with a slot 114 in the middle), that is, the first extension 111, the third extension 113, and the second extension 112 are connected in series in sequence, the plate thickness H1 can be 0.5 mm, and the total length L2 can be 18 mm; the length L3 of the first extension 111 and the second extension 112 can be 16 mm. It can be understood that the single effective length of the heating element 11 can be 32.0 mm; the length of the third extension 113 of the heating element 11 can be 2 mm; specifically, the width W1 of the heating plate can be 4.0 mm; specifically, the error range of each dimension of the heating plate does not exceed 0.05 mm. Both opposite surfaces of the plate-shaped heating element 11 can be used to contact and heat the aerosol-forming substrate 102.

[0077] In another specific embodiment, see Figure 4 and Figure 9 , Figure 9 A schematic diagram of the dimensions of a heating rod provided for an embodiment of the present application; the heating element 11 may also be in the shape of a rod, and may specifically be a heating rod made of conductive ceramic. In this embodiment, the spacing L4 between the first extension portion 111 and the second extension portion 112 is less than one-third of the diameter φ of the entire heating rod. The spacing L4 may specifically be greater than 0 and less than 1 mm. Preferably, L4 may be 0.3 or 0.4 mm. Specifically, in this embodiment, a supporting ceramic 14 is further provided between the first extension portion 111 and the second extension portion 112 to enhance the strength of the heating element 11, so that the heating element 11 can be more smoothly inserted into the tobacco during the insertion of the heating element 11 into the tobacco, effectively reducing the probability of bending of the heating element 11 due to stress. Specifically, the supporting ceramic 14 may be bonded to the first extension portion 111 and the second extension portion 112 via glass ceramic 15 to enhance the bonding strength between them. In this embodiment, the supporting ceramic 14 may be made of ceramic materials such as zirconia, zirconia toughening, and alumina materials.

[0078] Specifically, the resistivity of the ceramic material used in the heating rod can be 3*10 -5Ohm, the design power can be 3-4W, for example, specifically 3.3 watts, and the resistance can be 0.3-1 ohm, for example, 0.5 ohm; specifically, the heating rod can be a single series type, that is, the first extension portion 111, the third extension portion 113 and the second extension portion 112 are connected in series in sequence, and its diameter φ can be specifically 2-5 mm, specifically 3 mm, and the length L5 can be 18-22 mm, specifically 19.7 mm; wherein the length L6 of the first extension portion 111 and the second extension portion 112 can be 12-18 mm, specifically 16 mm. It can be understood that the effective length of a single heating element 11 can be 30-3 5 mm, specifically 32.0 mm; the length of the third extension portion 113 can be 2-5 mm, specifically 3.7 mm; specifically, the length L7 of the supporting ceramic 14 arranged between the first extension portion 111 and the second extension portion 112 can be 12-18 mm, specifically 17 mm, the width W2 can be the same as the diameter φ of the heating rod, specifically 2-5 mm, specifically 3 mm, the thickness H2 can be slightly smaller than the distance between the first extension portion 111 and the second extension portion 112, specifically, the thickness H2 can be 0.8-1.2 mm, for example, 0.9 mm, to facilitate the arrangement of the glass ceramic 15.

[0079] In specific embodiments, see Figures 1b to 4 The heating element 10 further includes two electrodes 12, one of which is disposed on the first extension portion 111 and the other is disposed on the second extension portion 112; in specific use, the two electrodes 12 are electrically connected to the power supply assembly via electrode leads, thereby electrically connecting the heating element 11 to the power supply assembly. Figure 1b and Figure 2 , the two electrodes 12 are respectively arranged on the same side of the first extension portion 111 and the second extension portion 112 away from the end of the third extension portion 113. The two electrodes 12 are formed by applying conductive silver paste to the outer surface of the lower end of the conductive ceramic. Specifically, the two electrodes 12 are roughly semi-cylindrical and extend to the groove 114 at both ends of the cross section of the heating element 11, so as to increase the contact area with the conductive ceramic as much as possible to reduce the contact resistance, and have a larger area for convenient welding of the electrode leads. Compared with the small-sized heating circuit formed by silk-screen printing or plating in the prior art, the contact resistance between the electrode 12 and the heating circuit is large. The heating element 11 of the present application can greatly increase the contact area with the electrode 12, thereby reducing the contact resistance and making the heating element 11 more stable in use.

[0080] In one embodiment, see Figure 10a , Figure 10aSchematic diagram of the structure in which electrodes are provided on two opposite surfaces of the heating element provided in one embodiment of the present application; when the heating element 11 is a heating plate, the electrodes 12 can be provided on two opposite surfaces of the first extension portion 111 and the second extension portion 112, that is, one electrode 12 is provided on the first surface C at the end of the first extension portion 111 and the second surface D opposite to the first surface C, and another electrode 12 is provided on the first surface C at the end of the second extension portion 112 and the second surface D opposite to the first surface C. When connecting the two electrode leads, one Y-shaped electrode lead can be connected to the two electrodes 12 on the two surfaces of the first extension portion 111, and the other Y-shaped electrode lead can be connected to the electrode 12 on the second extension portion 112; when the heating element 11 is a heating rod, see Figure 10b , Figure 10b A schematic structural diagram of a heating rod provided in one embodiment of the present application; the two electrodes 12 can extend to the inner wall surface corresponding to the groove 114 respectively; specifically, the first extension portion 111 of the heating rod has a first inner surface 111a and a first outer surface 111b, the second extension portion 112 has a second inner surface 112a and a second outer surface 112b, the electrode 12 on the first extension portion 111 extends from the first outer surface 111a to the first inner surface 111b, and the electrode 12 on the second extension portion 112 extends from the second outer surface 112a to the second inner surface 112b. By arranging the electrodes 12 on the two surfaces of the heating element 11, it is not only convenient for welding, but also has a lower resistance, and the heat generated when power is applied is lower, which can effectively prevent damage. In addition, when power is applied to the two surfaces of the conductive ceramic at the same time, the same electric potential is formed, which is conducive to making the electric field of the conductive component between the two surfaces uniform, and the heating effect is better.

[0081] In this embodiment, the slot 114 passes through the first surface C and the second surface D. Figure 10c , Figure 10c This is an E-direction view of the heating component provided in one embodiment of the present application; specifically, in the thickness direction of the heating element 11, the edges of the first extension portion 111, the second extension portion 112, and the third extension portion 113 form guide surfaces 118 from the parallel surfaces between the first surface C and the second surface D to the first surface C and the second surface D, respectively. The guide surfaces 118 can be guide inclined surfaces (see FIG. Figure 10c ) or arc-shaped, which not only makes it easier to insert into the tobacco, but also reduces resistance, thereby better protecting the heating element 11.

[0082] In a specific embodiment, the electrode 12 can be formed at the two ends of the first extension portion 111 and the second extension portion 112 by coating to improve the bonding force between the electrode 12 and the heating element 11, thereby improving the connection stability between the electrode lead connected to the electrode 12 and the heating element 11; it can be understood that ceramics have a microporous structure, and the microporous structure of the ceramics can make the bonding force between the formed electrode 12 and the heating element 11 strong even when the coating thickness is large, thereby greatly improving the bonding force between the electrode 12 and the heating element 11. Specifically, silver paste can be used as the coating material. It can be understood that the electrode 12 can also be formed by depositing a metal film, such as depositing gold, platinum, copper, etc. with a thickness higher than 1*10 -6 Ohm's metal material.

[0083] In specific embodiments, see Figure 11 , Figure 11 This is a side view of a heating component provided in one embodiment of the present application; the surface of the heating element 11 may also be coated with a protective layer 115, which covers the two electrodes 12 to prevent the tobacco oil formed when heating the tobacco from damaging or contaminating the electrodes 12 and the heating element 11; specifically, the protective layer 115 may be a glass glaze layer.

[0084] For details, see Figure 12 and Figure 13 , Figure 12 A schematic diagram of the positions of the first heating area and the second heating area on the heating element provided in one embodiment of the present application; Figure 13 A schematic diagram of the positions of the first heating zone and the second heating zone on the heating rod provided for an embodiment of the present application; the heating body 11 includes a first heating zone A and a second heating zone B connected to the first heating zone A, wherein the first heating zone A is the main atomization area for inserting tobacco for heating, and the atomization temperature thereon is concentrated at 280°C to 350°C, accounting for more than 75% of the area of the atomization area, and the second heating zone B is the main matching section of the heating body 11, and the temperature is below 150°C; in a specific embodiment, the length of the first heating zone A of the heating rod may be 14.5 mm, and the length of the second heating zone B may be 5.2 mm.

[0085] In a specific embodiment, only most of the first heating zone A and the second heating zone B of the first extension portion 111 and the second extension portion 112 are inserted into the aerosol-forming matrix 102, while a small part of the first heating zone A and the second heating zone B remain outside the aerosol-forming matrix 102; or the entire first heating zone A is inserted into the aerosol-forming matrix 102, while the second heating zone B remains outside the aerosol-forming matrix 102; or the entire first heating zone A is inserted into the aerosol-forming matrix 102, and a small part of the second heating zone B is also inserted into the aerosol-forming matrix 102, and only most of the second heating zone B remains outside the aerosol-forming matrix 102.

[0086] In a specific embodiment, the two electrodes 12 are specifically disposed in the second heating zone B of the heating element 11 to reduce the atomization temperature of the ceramic heating element 11 located in the second heating zone B. In this embodiment, the ratio of the heating temperature of the first heating zone A to the heating temperature of the second heating zone B of the heating element 11 is greater than 2.

[0087] In one specific embodiment, the resistivity of the material of the portion of the heating element 11 located in the second heating zone B is lower than the resistivity of the material of the portion of the heating element 11 located in the first heating zone A, so that the temperature of the first heating zone A of the heating element 11 is higher than the temperature of the second heating zone B. At the same time, by providing materials with different resistivities in different heating zones, the temperature of the different heating zones can be controlled by the resistivity difference. Specifically, the ceramic material of the portion of the heating element 11 located in the first heating zone A and the portion of the heating element 11 located in the second heating zone B are substantially identical in composition and are integrally formed, but the proportion of ceramic material or other components of the portion of the heating element 11 located in the first heating zone A and the portion of the heating element 11 located in the second heating zone B are different, so that the resistivity of the portion of the heating element 11 located in the first heating zone A and the portion of the heating element 11 located in the second heating zone B are different. Compared with the prior art, the first heating zone A and the second heating zone B use different conductive materials, such as aluminum film and gold film. The solution of splicing the two different conductive materials can effectively avoid the problem of conductor breakage in the first heating zone A and the second heating zone B of the heating element 11.

[0088] In another specific embodiment, see Figure 12 The width and / or thickness of the first extension portion 111 and the second extension portion 112 of the heating element 11 located in the second heating zone B are greater than the width and / or thickness of the first extension portion 111 and the second extension portion 112 of the heating element 11 located in the first heating zone A, so that the temperature of the first heating zone A of the heating element 11 is greater than the temperature of the second heating zone B; in this embodiment, the widened portion of the second heating zone B of the heating element 11 is stuck in the mounting seat 20, so as to limit the mounting seat 20 by the widened portion of the heating element 11, thereby preventing the mounting seat 20 from relative displacement with the heating element 11 during the plugging and unplugging process, affecting the connection stability between the electrode lead and the electrode 12.

[0089] Of course, in other embodiments, see Figure 14 , Figure 14This is a schematic diagram of the structure of the heating element and the mounting base after assembly provided in an embodiment of the present application; the material can also be controlled so that the temperature of the first heating zone A of the heating element 11 is greater than the temperature of the second heating zone B; for example, the conductive component is increased in the lower half of the heating element 11 to make the resistance of the lower half smaller and the temperature lower when heated. Therefore, in this embodiment, the width and / or thickness of the portion of the first extension portion 111 and the second extension portion 112 located in the second heating zone B can be made the same as the width and / or thickness of the portion of the first extension portion 111 and the second extension portion 112 located in the first heating zone A, which not only facilitates processing but also avoids the problem of tobacco or oil sticking to the widened portion.

[0090] During specific use, the heating component 10 is inserted into tobacco, and after power is turned on, the heating component 10 starts to work, heats the tobacco and generates smoke.

[0091] The heating component 10 provided in this embodiment includes a heating element 11, which includes a first extension portion 111 and a second extension portion 112 spaced apart from the first extension portion 111, and the first extension portion 111 and the second extension portion 112 are both used to at least partially insert into the aerosol-forming matrix 102 and generate heat when powered to heat the aerosol-forming matrix 102. Compared with the existing heating elements that are silk-screened or plated on a substrate, the heating element 11 of the present application can be directly and independently inserted into the aerosol-forming matrix 102, and will not fall off from the ceramic substrate and cause failure when subjected to high-temperature heating, thereby greatly improving the stability of the heating element 10; at the same time, since the heating element 11 is a self-supporting structure and does not require a substrate, the two opposite surfaces of the heating element 11 can be in direct contact with the aerosol-forming matrix 102, thereby effectively improving the heating uniformity of the aerosol-forming matrix 102 by the heating element 10.

[0092] In one embodiment, see Figures 15 to 20 ,in, Figure 15 A schematic structural diagram of a fixed jacket provided in one embodiment of the present application; Figure 16 A schematic structural diagram of a fixed outer sleeve provided in another embodiment of the present application; Figure 17 A schematic diagram of the structure of a heating component including a fixed outer shell provided in an embodiment of the present application; Figure 18 for Figure 17 A schematic diagram of the structure shown before assembly; Figure 19 A schematic structural diagram of a heating component including a fixed outer shell provided in another embodiment of the present application; Figure 20 for Figure 19 Schematic diagram of the structure before assembly.

[0093] Specifically, the heating element 10 further includes a fixed outer sleeve 13, which is disposed on the outer side of the heating element 11 to enhance the fatigue resistance of the heating element 11 and thereby increase the service life of the heating element 10. Specifically, the fixed outer sleeve 13 can be made of metal, such as steel, and can have a wall thickness of 0.1-0.5 mm.

[0094] Specifically, when the heating element 11 is a heating plate, the specific structure of the fixed jacket 13 can be found in Figure 15 The product structure after the fixed jacket 13 and the plate-shaped heating element 11 are installed can be seen in Figure 17 , the disassembly diagram can be found in Figure 18 Specifically, the fixed jacket 13 is also plate-shaped, with one end open and the other closed. The closed end of the fixed jacket 13 forms a pointed tip, and the two opposite side walls of the open end have notches 131. The two electrodes 12 can be respectively disposed on the side surfaces of the first extension 111 and the second extension 112 away from the slot 114, and are exposed through the two notches 131 for connection to the electrode leads 23.

[0095] When the heating element 11 is a heating rod, the specific structure of the fixed jacket 13 can be found in Figure 16 The product structure after the fixed jacket 13 and the rod-shaped heating element 11 are installed can be seen in Figure 19 , the disassembly diagram can be found in Figure 20 Specifically, the fixed jacket 13 is also rod-shaped, with one end open and the other closed. The closed end of the fixed jacket 13 forms a pointed tip, and the two opposite side walls of the open end have notches 131. The two electrodes 12 can be respectively disposed on the side surfaces of the first extension 111 and the second extension 112 away from the slot 114, and are exposed through the two notches 131 for connection to the electrode leads 23.

[0096] For details, see Figure 20 An insulating dielectric layer 24 is disposed between the heating element 11 and the fixed outer jacket 13 to enhance the bonding between the fixed outer jacket 13 and the heating element 11 and prevent short circuits. Specifically, the insulating dielectric layer 24 can be applied to the outer surface of the heating element 11 or the inner surface of the fixed outer jacket 13, depending on the process. The coating thickness can range from 0.05 to 0.1 mm. In one embodiment, the insulating dielectric layer 24 is applied to the surface of the heating element 11, exposing the slots 114 and electrodes 12.

[0097] Specifically, the length of the fixed jacket 13 is the same as or less than the length of the heating element 11. It is understood that since the fixed jacket 13 has a pointed end, the third extension portion 113 may also not have a pointed end for ease of processing. In other embodiments, the longitudinal length of the fixed jacket 13 is less than the length of the heating element 11, that is, the portion with the electrode 12 is not covered by the fixed jacket 13. In this way, the two surfaces of the heating element 11 can be directly fixed to the mounting base 20, and the portions of the first extension portion 111 and the second extension portion 112 that are inserted into the tobacco are strengthened and will not deform or break.

[0098] See also Figures 21 to 24 ,in, Figure 21 A schematic structural diagram of a mounting base provided in one embodiment of the present application; Figure 22 This is a schematic diagram of the structure after the mounting base and the heating plate are assembled according to an embodiment of the present application; Figure 23 This is a schematic diagram of the structure after the mounting base and the heating rod are assembled according to an embodiment of the present application; Figure 24 This is a schematic diagram of the structure of the mounting base and the heating rod after assembly according to another embodiment of the present application; that is, in a specific embodiment, the heating component 10 is placed on the mounting base 20 when in use to form a heating mechanism, and the mounting base 20 and the heating component 10 are fixedly arranged so that the heating component 10 can be installed in the main body of the aerosol forming device through the mounting base 20. Specifically, when the heating element 11 is a heating plate, the product structure after the mounting base 20 and the heating element 11 are assembled can be seen in FIG. Figure 22 When the heating element 11 is a heating rod and the heating element 11 is not covered with a fixed jacket 13, the product structure after the mounting base 20 and the heating element 11 are assembled can be seen in FIG. Figure 23 When a fixed jacket 13 is provided on the outside of the heating element 11, the mounting base 20 can be installed on the heating element 11 or the fixed jacket 13 according to the actual situation. For example, when the length of the fixed jacket 13 is the same as that of the heating element 11, the mounting base 20 can be installed on the fixed jacket 13. Figure 24 When the length of the fixed jacket 13 is less than the length of the heating element 11, the end of the heating element 11 coated with the electrode 12 is exposed outside the fixed jacket 13, and the mounting base 20 is fixed to the end of the heating element 11 exposed outside the fixed jacket 13, that is, fixed to the second heating area B of the heating element 11, and the mounting base 20 abuts against the end of the fixed jacket 13 near the mounting base 20. Preferably, when the end of the heating element 11 coated with the electrode 12 is exposed outside the fixed jacket 13, the mounting base 20 is fixed to the open end of the fixed jacket 13, that is, the open end of the fixed jacket 13 is inserted into the mounting base 20, and the end of the heating element 11 coated with the electrode 12 passes through the mounting base 20.

[0099] Specifically, the material of the mounting seat 20 can be an organic or inorganic material with a melting point above 160 degrees, for example, it can be PEEK material; the mounting seat 20 can be bonded to the heating component 10 by an adhesive, and the adhesive can be a high-temperature resistant glue.

[0100] In one embodiment, see Figure 21 and Figure 22 The mounting base 20 includes a mounting body 21 having a through-hole 22 formed therein. The heating element 11 is inserted into the through-hole 22 for mounting with the mounting base 20. In a specific embodiment, the portion of the heating element 11 corresponding to the second heating zone B is inserted into the through-hole 22. Specifically, a sidewall of the through-hole 22 is provided with a relief groove 211, through which the electrode lead 23 extends into the mounting base 20 to connect with the electrode 12 on the heating element 11. Furthermore, the mounting body 21 is provided with at least two clamping portions 24, through which the mounting base 20 is fixed to the housing of the aerosol-forming device.

[0101] In one embodiment, see Figure 25 , Figure 25 This is a front view of the mounting base and the heating component after being assembled according to an embodiment of the present application; when the heating component 10 is fixed to the mounting base 20 through the heating element 11 (see Figure 25 ), the first extension portion 111 and the second extension portion 112 of the heating element 11 are provided with a first fixing structure 116 on a portion of the surface for inserting into the mounting seat 20, and a second fixing structure 117 is provided in the through hole 22 of the mounting seat 20 at a position corresponding to the first fixing structure 116. The mounting seat 20 and the heating element 11 are fixed to each other through the engagement of the first fixing structure 116 and the second fixing structure 117, thereby improving the stability of the connection between the two; and when the fixed jacket 13 of the heating component 10 is fixed to the mounting seat 20, the first fixing structure 116 can be provided on a portion of the surface of the fixed jacket 13 for inserting into the mounting seat 20, so as to cooperate with the second fixing structure 117 in the mounting seat 20 to achieve fixation between the two. Specifically, the first fixing structure 116 can be a plurality of protrusions (or depressions), and the second fixing structure 117 can be a depression (or protrusion) matching the first fixing structure 116.

[0102] The heating component 10 provided in this embodiment can directly adopt a self-supporting ceramic heating plate (or heating rod) as the heating form, and the heating element 11 can be arranged into a single series type according to the control position of the electrode 12 and the resistance value requirements; at the same time, the heating element 11 is made of ceramic material. Compared with the heating element structure formed by coating metal heating material on the existing ceramic substrate, it can contact tobacco on both sides at the same time and heat the tobacco, and the heating is more uniform and stable.

[0103] See also Figure 26 , Figure 26 This is a structural schematic diagram of an aerosol-forming device provided in one embodiment of the present application. In this embodiment, an aerosol-forming device 100 is provided, which includes a shell 101 and a heating component 10, a mounting seat 20 and a power supply component 30 arranged in the shell 101.

[0104] Among them, the heating component 10 is arranged on the mounting base 20 and is fixedly mounted on the inner wall surface of the shell 101 through the mounting base 20; specifically, the specific structure and function of the heating component 10 and the mounting base 20 can be referred to the text description in the relevant embodiment of the heating component 10 provided in the above embodiment, and will not be repeated here; the power supply component 30 is connected to the heating component 10 for supplying power to the heating component 10; and in one embodiment, the power supply component 30 can specifically be a rechargeable lithium-ion battery.

[0105] The aerosol-forming device 100 provided in this embodiment is provided with a heating component 10 to heat and atomize tobacco after tobacco is inserted; wherein, by providing the heating component 10 to include a heating element 11, the heating element 11 includes a first extension portion 111 and a second extension portion 112 spaced apart from the first extension portion 111, and the first extension portion 111 and the second extension portion 112 are both used to at least partially insert into the aerosol-forming substrate 102 and generate heat when energized to heat the aerosol-forming substrate 102. Compared with the existing heating elements silk-screened on a ceramic substrate, the heating element 11 of the present application can be directly and independently inserted into the aerosol-forming substrate 102, and will not fall off from the ceramic substrate when subjected to high-temperature heating and cause failure, thereby greatly improving the stability of the heating component 10; at the same time, since the heating element 11 is a self-supporting structure and does not require a substrate, the entire surface of the heating element 11 is in direct contact with the aerosol-forming substrate 102, thereby effectively improving the heating uniformity of the heating component 10.

[0106] The above is only an implementation method of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the description and drawings of this application, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A heating component, characterized in that: comprising a heating element for inserting into and heating an aerosol-forming substrate, the heating element comprising a first extension portion spaced apart from one another and a second extension portion connected to one end of the first extension portion, the first extension portion and the second extension portion both being adapted to at least partially insert into the aerosol-forming substrate and to generate heat when energized to heat the aerosol-forming substrate; The heating element includes a first heating zone and a second heating zone connected to the first heating zone, the first heating zone is used to insert the aerosol-forming matrix; the second heating zone is at least used to insert the mounting seat; the width of the parts of the first extension part and the second extension part located in the second heating zone is greater than the width of the parts of the first extension part and the second extension part located in the first heating zone, so that the temperature of the first heating zone of the heating element is greater than the temperature of the second heating zone of the heating element; wherein the widened part of the second heating zone of the heating element is stuck in the mounting seat.

2. The heating component according to claim 1, characterized in that Both opposite surfaces of the portions of the first extension and the second extension for inserting into the aerosol-forming substrate are in contact with the aerosol-forming substrate.

3. The heating component according to claim 1, characterized in that The first extension portion and the second extension portion are arranged in parallel and spaced apart. The heating element further includes a third extension portion for completely inserting into and heating the aerosol-forming substrate. The adjacent ends of the first extension portion and the second extension portion are connected through the third extension portion.

4. The heating component according to claim 3, characterized in that The heating component further includes two electrodes, one of which is disposed at an end of the first extension portion away from the third extension portion, and the other is disposed at an end of the second extension portion away from the third extension portion.

5. The heating component according to claim 4, characterized in that: The heating element is a heating plate made of conductive ceramic, and the distance between the first extension portion and the second extension portion on the heating plate is 0.25-0.35 mm.

6. The heating component according to claim 4, characterized in that: The heating element is a heating rod made of conductive ceramic, and the distance between the first extension part and the second extension part on the heating rod is 0-1 mm.

7. The heating component according to claim 6, characterized in that A supporting ceramic is provided between the first extension portion and the second extension portion, and the supporting ceramic is bonded to the first extension portion and the second extension portion through glass ceramic.

8. The heating component according to any one of claims 1 to 7, characterized in that: The heating element includes a main component and a crystal component; the main component is one or more of manganese, strontium, lanthanum, tin, antimony, zinc, bismuth, silicon, and titanium, and the crystal component is one or more of lanthanum manganate, strontium lanthanum manganate, tin oxide, zinc oxide, antimony oxide, bismuth oxide, silicon oxide, and yttrium oxide.

9. The heating component according to claim 1, characterized in that: The heating component further comprises a fixed outer sleeve which is sleeved on the outer side of the heating element.

10. The heating component according to claim 9, characterized in that: The material of the fixed outer shell is metal, and an insulating medium layer is provided between the fixed outer shell and the heating element.

11. The heating component according to claim 9, characterized in that Partial surfaces of the first extension portion and the second extension portion for inserting into the mounting seat have a first fixing structure, or part of the surface of the fixing sleeve for inserting into the mounting seat has a first fixing structure.

12. The heating component according to claim 4, characterized in that: The heating component further includes a protective layer coated on the surface of the heating element and covering the two electrodes.

13. The heating component according to claim 12, characterized in that: The protective layer is a glass glaze layer.

14. The heating component according to claim 1, characterized in that The first surface of the first extension portion and the second surface opposite to the first surface are both provided with electrodes, and the first surface of the second extension portion and the second surface opposite to the first surface are both provided with electrodes.

15. The heating component according to claim 6, characterized in that: The first extension portion has a first inner surface and a first outer surface, the second extension portion has a second inner surface and a second outer surface, the electrode on the first extension portion extends from the first outer surface to the first inner surface, and the electrode on the second extension portion extends from the second outer surface to the second inner surface.

16. The heating component according to claim 4, characterized in that The ratio of the heating temperature of the first heating zone to the heating temperature of the second heating zone of the heating element is greater than 2, and the two electrodes are arranged in the second heating zone of the heating element; the first extension part, the second extension part and the third extension part form a U-shaped structure.

17. The heating component according to claim 16, characterized in that: The heating element is integrally formed, and the parts of the first extension part and the second extension part located in the second heating zone and the parts of the first extension part and the second extension part located in the first heating zone are made of materials with different resistivity, so that the temperature of the first heating zone of the heating element is greater than the temperature of the second heating zone of the heating element.

18. An aerosol-forming device, characterized in that It comprises: a shell and a heating component and a power supply component arranged in the shell; wherein the power supply component is connected to the heating component for supplying power to the heating component, and the heating component is the heating component according to any one of claims 1-17.

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