Heating assembly and aerosol-forming device

Abstract

The application provides a heating assembly and an aerosol forming device. The heating assembly comprises a heating body and at least two electrodes; wherein the heating body is used for accommodating and heating an aerosol forming substrate when powered; and the at least two electrodes are arranged on the heating body in a spaced manner and are used for communicating with an external power supply to power the heating body. The heating assembly has good stability, a relatively simple structure, low process difficulty and low manufacturing cost.

Description

Technical Field

[0001] This invention relates to the field of atomization equipment technology, and in particular to a heating component and an aerosol forming device. Background Technology

[0002] As a substitute for cigarettes, e-cigarettes are gaining increasing attention and popularity due to their advantages such as safety, convenience, health, and environmental friendliness; for example, heated non-combustible e-cigarettes are also known as heated non-combustible aerosol forming devices.

[0003] Existing heated non-combustible aerosol forming devices generally include a heating element to heat and atomize the aerosol to form a matrix. Currently, the heating element mainly uses ceramic or insulated metal as a substrate, then prints or coats resistive heating lines on the substrate, and fixes the resistive heating lines on the substrate after high-temperature treatment. However, in later use, such heating elements are prone to detachment from the substrate due to the bending of the substrate, and the resistive heating lines are easy to fall off the substrate when heated at high temperatures, resulting in poor stability. Other heating elements are generally formed through multi-layer structures, which are more complex and have higher process difficulty and manufacturing costs. Summary of the Invention

[0004] This application provides a heating component and an aerosol forming apparatus. The heating component can solve the problems of existing heating components where the resistive heating circuit is prone to falling off the substrate when heated to high temperature, resulting in poor stability, complex structure, and high process difficulty and manufacturing cost.

[0005] To solve the above-mentioned technical problems, one technical solution adopted in this application is to provide a heating assembly. The heating assembly includes a heating element and at least two electrodes; wherein, the heating element is used to contain and heat the aerosol matrix when energized; the at least two electrodes are spaced apart on the heating element for connection to an external power source to energize the heating element.

[0006] The heating element is tubular and has a first connecting end and a second connecting end opposite to the first connecting end; the electrodes are wound around the heating element in the circumferential direction.

[0007] The heating element is cylindrical, and the electrodes are in the form of a closed ring.

[0008] The electrodes are in the shape of a ring.

[0009] The heating element is cylindrical, and the electrodes are non-closed rings.

[0010] The device has two electrodes, one of which is located near the first connection end, and the other is located near the second connection end.

[0011] The number of electrodes is at least three, and the at least three electrodes are spaced apart along the length of the heating element, and the at least three electrodes define at least two heating zones.

[0012] The number of electrodes is at least five, and the at least five electrodes are arranged at equal intervals along the length of the heating element, with two of the at least five electrodes respectively located at opposite ends of the heating element.

[0013] Among them, one of the at least three or at least five electrodes is in a closed loop and is located near the first connection end of the heating element, while the remaining electrodes are in a ring shape with notches; the heating assembly also includes electrode extensions that are arranged one-to-one with the at least three electrodes, one end of which is electrically connected to the corresponding electrode, and the other end extends through the notch to the position near the second connection end of the heating element.

[0014] Among them, the arrangement direction of the notches of the remaining electrodes is parallel to the axial direction of the heating element, the lateral dimension of the notches gradually increases along the direction away from the closed-loop electrodes, and the extension direction of the electrode extension is parallel to the axial direction of the heating element.

[0015] In this configuration, each of the two, at least three, or at least five electrodes is in a closed ring.

[0016] The tubular heating element also has a bottom wall, which is located at one of the ports of the heating element to seal the port.

[0017] The bottom wall has several ventilation holes that penetrate the first surface of the bottom wall and the second surface opposite to the first surface.

[0018] This also includes a protective layer, which is coated on the surface of the heating element and covers the electrodes.

[0019] The heating element is made of conductive ceramic material; the conductivity of the conductive ceramic material is 1*10⁻⁶. -4 Ω.m to 1*10 -6 Ω.m.

[0020] The heating element includes a main component and a crystalline component; the main component is one or more of manganese, strontium, lanthanum, tin, antimony, zinc, and bismuth, and the crystalline component is one or more of lanthanum manganate, lanthanum strontium manganate, tin oxide, zinc oxide, antimony oxide, and bismuth oxide.

[0021] To solve the above-mentioned technical problems, another technical solution adopted in this application is to provide an aerosol forming apparatus. The aerosol forming apparatus includes a housing, a heating component, a controller, and a power supply component; wherein the power supply component is electrically connected to the heating component and is used to supply power to the heating component, which is the heating component described above; the controller is connected to the heating component and is used to control the heating component to generate heat when the heating component is energized.

[0022] The heating component is the heating component mentioned above; the controller controls at least two heating zones to sequentially heat the aerosol forming matrix at the corresponding positions.

[0023] In this case, the controller ensures that the heating temperature of each heating zone is consistent; or the controller ensures that the heating temperature of the heating zone that heats up later is lower than the heating temperature of the heating zone that heats up earlier.

[0024] The heating component and electronic atomizing device provided in this application have a heating element that houses and heats the aerosol to form a matrix when energized. Simultaneously, at least two electrodes are spaced apart on the heating element to connect it to an external power source, thereby energizing the heating element. Since the heating element can exist independently without relying on other carriers, compared to existing heating elements screen-printed on ceramic substrates, the heating element of this application does not detach from the ceramic substrate during high-temperature heating, thus significantly improving the stability of the heating component. Furthermore, because the heating element is a one-piece structure, its structure is simpler than that of multi-layered heating elements, resulting in lower manufacturing difficulty and production costs. Attached Figure Description

[0025] Figure 1 This is a front view schematic diagram of the heating assembly provided in the first embodiment of this application;

[0026] Figure 2a Provided for a specific embodiment of this application Figure 1 A three-dimensional structural diagram of the structure shown;

[0027] Figure 2b Provided for another specific embodiment of this application Figure 1 A three-dimensional structural diagram of the structure shown;

[0028] Figure 2c Provided for yet another specific embodiment of this application Figure 1 A three-dimensional structural diagram of the structure shown;

[0029] Figure 3 This is a front view schematic diagram of the heating assembly provided in the second embodiment of this application;

[0030] Figure 4 This is a front view schematic diagram of the heating assembly provided in the third embodiment of this application;

[0031] Figure 5 This is a front view schematic diagram of the heating assembly provided in the fourth embodiment of this application;

[0032] Figure 6 This is a schematic diagram of the structure of an electronic atomizing device provided in an embodiment of this application. Detailed Implementation

[0033] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0034] The terms "first," "second," and "third" in this application are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationships and movements between components in a specific orientation (as shown in the figures). If the specific orientation changes, the directional indications also change accordingly. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. 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 not listed, or may optionally include other steps or units inherent to these processes, methods, products, or devices.

[0035] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0036] The present application will now be described in detail with reference to the accompanying drawings and embodiments.

[0037] Please see Figures 1 to 2c ,in, Figure 1 This is a front view schematic diagram of the heating assembly provided in the first embodiment of this application; Figure 2a Provided for a specific embodiment of this application Figure 1 A three-dimensional structural diagram of the structure shown; Figure 2b Provided for another specific embodiment of this application Figure 1 A three-dimensional structural diagram of the structure shown; Figure 2cProvided for yet another specific embodiment of this application Figure 1 The diagram shows a three-dimensional structure. In this embodiment, a heating component 20 is provided, which is specifically used to contain and heat the aerosol forming matrix when energized. The aerosol forming matrix may be tobacco shreds, cigarette sticks, or paste-like e-liquid.

[0038] For details, see Figure 1 The heating component 20 includes a heating element 21 and at least two electrodes 22.

[0039] The heating element 21 is used to contain the aerosol forming matrix. The heating element 21 can both support the aerosol forming matrix contained therein and heat the aerosol forming matrix contained therein when energized. Since the heating element 21 is a self-supporting structure, that is, the heating element 21 can exist independently without relying on other carriers. Compared with existing heating components formed by printing or coating resistive heating elements on a substrate, the self-supporting structure of the heating element 21 will not have the problem of falling off the ceramic substrate and causing failure when heated at high temperatures, which greatly improves the stability of the heating component 20. At the same time, since the heating element 21 heats the aerosol forming matrix in the circumferential direction simultaneously through peripheral heating, it effectively improves the heating uniformity of the aerosol forming matrix, the preset temperature field boundary is clear, and in particular, low-voltage start-up facilitates real-time power control and design.

[0040] Specifically, the heating element 21 is a one-piece molded structure; it can be made by dry pressing or injection molding to obtain a blank, and then the molded blank is sintered to obtain the product; compared with the heating element formed by multi-layer structure, the one-piece molded heating element 21 has a simpler structure, and the manufacturing process is less difficult and the production cost is lower.

[0041] For details, see Figure 2a The heating element 21 may be tubular, and the tubular heating element 21 has a first connecting end and a second connecting end arranged opposite to each other along its length; preferably, the heating element 21 may be cylindrical; in a specific embodiment, see [link to specific embodiment]. Figure 2a The heating element 21 has a through hole 211 along its length. The aerosol forming matrix is ​​inserted into the heating element 21 through one end of the through hole 211 to heat the aerosol forming matrix from the outside. In this embodiment, the heated aerosol can flow out through the opening of the through hole 211. Specifically, the through hole 211 can be consistent with the outer contour of the aerosol forming matrix (such as a cigarette). In another specific embodiment, see... Figure 2bThe heating element 21 also has a bottom wall 212, which has a first surface and a second surface disposed opposite to each other. In a specific embodiment, the bottom wall 212 may be disposed at the port of the through hole 211 near the first connecting end or the second connecting end, so as to block one end port of the through hole 211 through the bottom wall 212, thereby limiting the aerosol forming matrix contained in the through hole 211. It can be understood that in this embodiment, the heating element 21 is substantially barrel-shaped, and the aerosol forming matrix is ​​inserted into the heating element 21 from the open end of the barrel-shaped heating element 21, and the aerosol formed by heating specifically flows out through the open end of the barrel-shaped heating element 21. In another specific embodiment, see Figure 2c A number of ventilation holes 213 can also be provided on the bottom wall 212. The ventilation holes 213 penetrate the first surface and the second surface of the bottom wall 212 so that the aerosol formed by heating can also flow out from the barrel-shaped heating element 21 through the ventilation holes 213 at the same time. Specifically, the number of ventilation holes 213 can be evenly distributed on the bottom wall 212.

[0042] Specifically, the heating element 21 can be made of conductive ceramic. Compared to existing metal materials, the ceramic heating element 21 has higher conductivity and produces a more uniform temperature. Furthermore, the power of the ceramic heating element 21 can be adjusted and designed between 3 and 4 watts, and its conductivity can reach 1*10⁻⁶. -4 Ω.m to 1*10 -6 The ceramic heating element 21 has a strength of Ω.m, a bending strength greater than 40MPa, and a fire resistance higher than 1200℃; at the same time, the ceramic heating element 21 has the characteristic of full-range start-up voltage.

[0043] Specifically, the electromagnetic heating wavelength of the ceramic heating element 21 is mid-infrared, which is beneficial for atomizing e-liquid and improving the taste. In addition, the crystal structure of the ceramic heating element 21 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, which greatly improves the service life of the heating element 21.

[0044] Understandably, the use of a single ceramic heating element 21 reduces the area of ​​the hot spot at the highest temperature, eliminates the risk of fatigue cracking and increased fatigue resistance, and exhibits good consistency. Furthermore, due to the high strength of the ceramic heating material and the smoothness brought about by its microcrystalline structure, the surface of the heating element 21 is easy to clean and does not easily adhere to surfaces. In addition, the ceramic heating element 21 is manufactured using ceramic production processes, which mainly include raw material mixing, molding and sintering, and cutting. The process is relatively simple and easy to control, with low cost, which is conducive to the promotion of mass production and the improvement of economic benefits.

[0045] Specifically, the conductive ceramic heating element 21 includes a main component and a crystalline component. The main component is used to conduct electricity and create a certain resistance in the conductive ceramic heating element 21. The main component can be one or more of manganese, strontium, lanthanum, tin, antimony, zinc, and bismuth. The crystalline component, i.e., the main material of the ceramic material, can be one or more of lanthanum manganate, lanthanum strontium manganate, tin oxide, zinc oxide, antimony oxide, and bismuth oxide. In other embodiments, the heating element 21 can also be made of a metal alloy, an iron-silicon alloy, or an iron-silicon-aluminum alloy ceramic alloy.

[0046] At least two electrodes 22 are spaced apart on the heating element 21 for connection to an external power source to energize the heating element 21. The electrodes 22 are printed onto the heating element 21 by screen printing conductive paste. Furthermore, the electrodes 22 can be connected to external leads 50 (see below). Figure 6 It can be connected to an external power source; of course, in other embodiments, a metal electrode tube can be sleeved around the heating element 21 so that the electrode 22 can be connected to an external power source, thereby causing the heating element 21 to heat up.

[0047] Specifically, at least two electrodes 22 may be spaced apart along the length of the heating element 21, and each electrode 22 may be wound around the circumferential direction of the heating element 21; in one specific embodiment, the electrode 22 wound around the heating element 21 may be in the form of a closed ring; preferably, the electrode 22 may be in the form of a circular ring; of course, in other embodiments, the electrode 22 may also be in the form of an ellipse or other shapes that are inclined relative to the axial direction of the heating element 21; in another specific embodiment, the electrode 22 may also be in the form of a non-closed ring; a non-closed ring is a ring with a notch.

[0048] In a specific embodiment, electrodes 22 can be formed on the heating element 21 by coating to improve the bonding force between the electrodes 22 and the heating element 21, thereby improving the external lead 50 connected to the electrodes 22 (see below). Figure 6 The connection stability between the electrode 22 and the heating element 21 is improved. It is understood that ceramics have a microporous structure, which allows for a strong bond between the electrode 22 and the heating element 21 even with a large coating thickness, thus significantly enhancing the bonding force. Specifically, silver paste can be used as the coating material. Alternatively, the electrode 22 can be formed by depositing a metal film, such as gold, platinum, or copper with a thickness greater than 1*10⁻⁶. -6 Metallic materials with an Ω.m value.

[0049] In one embodiment, see Figure 1There are two electrodes 22. One of the electrodes 22 is located near the first connection end of the heating element 21, and the other electrode 22 is located near the second connection end of the heating element 21. When the two electrodes 22 are connected to the power supply through the external lead 50, the part between the first connection end and the second connection end of the heating element 21 begins to heat up and heats the aerosol forming matrix contained therein.

[0050] In another embodiment, see Figure 3 , Figure 3 This is a front view schematic diagram of the heating assembly provided in the second embodiment of this application. In this embodiment, the number of electrodes 22 is at least three, and the at least three electrodes 22 are spaced apart along the length direction of the heating element 21. Preferably, the at least three electrodes 22 are equally spaced along the length direction of the heating element 21. The at least three electrodes 22 define at least two heating areas. At the same time, two of the at least three electrodes 22 are respectively disposed at the first connection end and the second connection end of the heating element 21. In a specific embodiment, two adjacent heating areas are directly connected, which can ensure that the aerosol forming matrix corresponding to each position contained in the heating element 21 can be heated well, thereby improving the utilization rate of the aerosol forming matrix.

[0051] In a specific embodiment, at least two heating zones are sequentially energized and heated along the length of the heating element 21 to heat the aerosol forming matrix at the corresponding positions in sequence, thereby mimicking the process of the aerosol forming matrix gradually burning from one end to the other and ensuring the consistency of the user's inhalation experience.

[0052] Specifically, the heating temperature of each heating zone is consistent, so that the aerosol forming matrix corresponding to each heating zone can be heated at the same temperature, thereby ensuring a consistent vaping experience for the user. Of course, in other embodiments, the heating temperature of the later-heating zone can also be lower than that of the earlier-heating zone to avoid the aerosol forming matrix being burned due to excessively high temperature in the later-heating zone. It can be understood that while the earlier-heating zone is heating its corresponding aerosol forming matrix, the heat generated will also be conducted to the aerosol forming matrix corresponding to the later-heating zone, thus heating the aerosol forming matrix corresponding to the later-heating zone. That is, during the process of the earlier-heating zone heating its corresponding aerosol forming matrix, part of the aerosol forming matrix corresponding to the later-heating zone will also be partially heated. Therefore, when the later-heating zone is turned on to heat its corresponding aerosol forming matrix, the heating temperature of the later-heating zone can be controlled to be slightly lower than that of the earlier-heating zone.

[0053] In another embodiment, the number of electrodes 22 is at least five, and the at least five electrodes 22 are arranged at equal intervals along the length direction of the heating element 21. Two of the at least five electrodes 22 are respectively disposed at the first connection end and the second connection end of the heating element 21. At the same time, the at least five electrodes 22 define at least two heating areas. The specific features of the at least two heating areas can be found in the textual description of the embodiment with at least three electrodes 22 described above, and the same or similar technical effects can be achieved. They will not be repeated here.

[0054] In one specific embodiment, each of the at least two electrodes 22, at least three electrodes 22, and / or at least five electrodes 22 is in the form of a closed ring, and the external lead 50 is directly connected to each electrode 22 to achieve communication between them.

[0055] In another specific embodiment, see Figure 4 , Figure 4 This is a front view schematic diagram of the heating assembly provided in the third embodiment of this application. In order to facilitate the connection between the external lead 50 and the electrode 22, in this embodiment, the heating assembly 20 further includes an electrode extension 221 that is correspondingly provided with at least two, at least three, or at least five electrodes 22. One end of the electrode extension 221 is electrically connected to the corresponding electrode 22, and the other end extends to the same position of the heating element 21, such as the same end. Specifically, one of the at least two, at least three, or at least five electrodes 22 is in the form of a closed ring and is located near the first connection end of the heating element 21. The remaining electrodes 22 are in the form of a ring with a notch. After one end of each electrode extension 221 is electrically connected to the corresponding electrode 22, it extends to the position of the heating element 21 near the second connection end through the notch corresponding to the remaining electrode 22, so that each electrode 22 is led to the second connection end and connected to the external lead 50.

[0056] In a specific embodiment, the electrode extension 221 and the electrode 22 can be formed simultaneously in the same manner, and the specific material of the electrode extension 221 can be the same as that of the electrode 22, which is not limited here. Specifically, the extension direction of the electrode extension 221 corresponding to each electrode 22 can be parallel to the axial direction of the heating element 21, which not only facilitates manufacturing but also saves costs.

[0057] Specifically, the arrangement direction of the notches of the remaining electrodes 22 is parallel to the axial direction of the heating element 21, and the lateral dimension of the notches corresponding to at least two, at least three, or at least five electrodes 22 gradually increases along the direction away from the closed ring-shaped electrodes 22, so as to ensure that each electrode extension 221 can extend to the position of the heating element 21 near the second connection end through the current notch; wherein, the lateral dimension of the notch specifically refers to the dimension of the notch along the circumferential direction of the heating element 21.

[0058] In one embodiment, the electrode extensions 221 are all straight and extend along the axial direction of the heating element 21. The electrode extension 221 corresponding to the closed ring electrode 22 is disposed in the middle of the notch, and the electrode extensions 221 of the other electrodes 22 are symmetrically disposed on opposite sides of the electrode extensions 221 corresponding to the closed ring electrode 22. For example, the five electrodes 22 are defined as the first electrode 22, the second electrode 22, the third electrode 22, the fourth electrode 22, and the fifth electrode 22, respectively. The electrode extensions 221 corresponding to the five electrodes 22 are defined as the first electrode extension 221, the second electrode extension 221, the third electrode extension 221, the fourth electrode extension 221, and the fifth electrode extension 221, respectively. The first electrode 22 is in a closed loop shape. The first electrode extension 221 corresponding to the first electrode 22 is disposed in the middle of the notch. The first electrode extension 221 and the third electrode extension 221 are disposed on the first side of the first electrode extension 221. The second electrode extension 221 and the fourth electrode extension 221 are disposed on the second side of the first electrode extension 221 opposite to the first side.

[0059] In one embodiment, see Figure 5 , Figure 5 This is a front view schematic diagram of the heating assembly 20 provided in the fourth embodiment of this application; another heating assembly 20 is provided, which differs from the heating assembly 20 provided in any of the above embodiments in that the heating assembly 20 further includes a protective layer 23. The protective layer 23 is applied to the surface of the heating element 21 and covers at least two electrodes 22 to protect the surface of the heating element 21 and the electrodes 22, preventing the heating element 21 and the electrodes 22 from being corroded or contaminated, thus affecting their respective performance; specifically, the protective layer 23 may be a glass glaze layer.

[0060] The heating assembly 20 provided in this embodiment includes a heating element 21 that houses and heats the aerosol matrix when energized. Simultaneously, at least two electrodes 22 are spaced apart on the heating element 21 to connect it to an external power source, thus energizing the heating element 21. Since the heating element 21 can exist independently without relying on other carriers, compared to existing heating elements screen-printed on ceramic substrates, the heating element 21 of this application does not detach from the ceramic substrate during high-temperature heating, thus significantly improving the stability of the heating assembly 20. Furthermore, because the heating element 21 is a single-piece structure, its structure is simpler than that of a multi-layered heating element 21, resulting in lower manufacturing difficulty and production costs.

[0061] Please see Figure 6 , Figure 6This is a schematic diagram of the structure of an electronic atomizing device provided in an embodiment of this application. In this embodiment, an aerosol forming device 100 is provided, which may include a housing 10 and a heating component 20, a mounting base 30, a controller (not shown), and a power supply component 40 disposed within the housing 10.

[0062] The heating component 20 can be any of the heating components 20 described in the above embodiments. Its specific structure and function can be found in the relevant description of the heating component 20 in the above embodiments, and it can achieve the same or similar technical effects, which will not be repeated here.

[0063] The mounting base 30 is used to fix the heating component 20 to the housing 10. Specifically, the mounting base 30 includes a mounting body with a through hole, into which the heating component 20 is inserted for mounting. In a specific embodiment, a portion of the heating element 21 that avoids the electrode 22 is inserted into the through hole, and the mounting base 30 may be located near the end of the heating element 21. In a specific embodiment, a clearance groove may also be provided on the side wall of the through hole, through which the external lead 50 extends into the mounting base 30 to connect with the electrode 22 on the heating element 21 that is away from the mounting base 30. It is understood that when at least two electrodes 22 are led to the second connection end, the clearance groove may not be provided. Furthermore, the mounting body is also provided with at least two snap-fit ​​parts, through which the mounting base 30 is fixed to the housing 10 of the aerosol forming apparatus 100.

[0064] The controller is connected to the heating component 20 and is used to control the heating component 20 to heat up when it is powered on. Specifically, the heating component 20 can be the heating component 20 corresponding to the above-mentioned at least three or at least five electrodes 22. The controller controls at least two heating areas on the heating component 20 to heat the aerosol forming matrix at the corresponding positions in sequence, that is, controls each heating area to start heating up in turn to simulate the process of aerosol forming matrix atomizing from one end to the other end.

[0065] In a specific embodiment, the controller controls the heating temperature of each heating zone to be consistent, so that the aerosol forming matrix corresponding to each heating zone can be heated at the same temperature, thereby ensuring a consistent vaping experience for the user; or the controller controls the heating temperature of the heating zone that is heated later to be lower than the heating temperature of the heating zone that is heated earlier, so as to avoid the problem of the aerosol forming matrix being burned due to the excessively high heating temperature of the heating zone that is heated later.

[0066] The power supply component 40 is connected to the heating component 20 and is used to supply power to the heating component 20; and in one embodiment, the power supply component 40 may specifically be a rechargeable lithium-ion battery.

[0067] The electronic atomizing device provided in this embodiment includes a heating component 20 comprising a heating element 21 to house and heat the aerosol matrix when energized. Simultaneously, at least two electrodes 22 are spaced apart on the heating element 21 to connect it to an external power source, thereby energizing the heating element 21. Since the heating element 21 can exist independently without relying on other carriers, compared to existing heating elements screen-printed on ceramic substrates, the heating element 21 of this application does not detach from the ceramic substrate during high-temperature heating, thus significantly improving the stability of the heating component 20. Furthermore, because the heating element 21 is a single-piece structure, its structure is simpler than that of a multi-layered heating element 21, resulting in lower manufacturing difficulty and production costs.

[0068] The above are merely embodiments of this application and do not limit the scope of this patent application. Any equivalent structural or procedural changes made using the content of this application’s specification and drawings, or any direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of this application.

Claims

1. A heating assembly, characterized in that, include: A heating element is used to contain and heat the aerosol matrix when energized; the heating element is made of a conductive ceramic material; the conductivity of the conductive ceramic material is 1*10⁻⁶. -4 Ω.m to 1*10 -6 Ω.m; At least two electrodes are spaced apart on the heating element for connection to an external power source to energize the heating element. The heating element is tubular and has a first connecting end and a second connecting end opposite to the first connecting end; the electrodes are arranged around the circumferential direction of the heating element; the number of electrodes is at least three, and the at least three electrodes are spaced apart along the length direction of the heating element, and the at least three electrodes define at least two heating areas; one of the at least three electrodes is in a closed loop shape and is located on the heating element near the first connecting end, and the remaining electrodes are in a ring shape with a notch; the heating assembly also includes an electrode extension portion corresponding to each of the at least three electrodes, one end of the electrode extension portion is electrically connected to the corresponding electrode, and the other end extends through the notch to the heating element near the second connecting end.

2. The heating assembly according to claim 1, characterized in that, The number of electrodes is at least five, and the at least five electrodes are arranged at equal intervals along the length of the heating element, with two of the at least five electrodes respectively located at opposite ends of the heating element.

3. The heating assembly according to claim 1, characterized in that, The notches of the remaining electrodes are arranged in a direction parallel to the axial direction of the heating element, the lateral dimension of the notches gradually increases in the direction away from the closed-loop electrodes, and the extension direction of the electrode extension is parallel to the axial direction of the heating element.

4. The heating assembly according to claim 1 or 2, characterized in that, The tubular heating element also has a bottom wall disposed at one of the ports of the heating element to close the port.

5. The heating assembly according to claim 4, characterized in that, The bottom wall has several ventilation holes, which penetrate the first surface of the bottom wall and the second surface opposite to the first surface.

6. The heating assembly according to claim 1, characterized in that, It also includes a protective layer coated on the surface of the heating element and covering the electrodes.

7. The heating assembly according to claim 1, characterized in that, The heating element comprises a main component and a crystalline component; the main component is one or more of manganese, strontium, lanthanum, tin, antimony, zinc, and bismuth, and the crystalline component is one or more of lanthanum manganate, lanthanum strontium manganate, tin oxide, zinc oxide, antimony oxide, and bismuth oxide.

8. An aerosol forming apparatus, characterized in that, include: The device comprises a housing, a heating component, a controller, and a power supply component; wherein the power supply component is electrically connected to the heating component and is used to supply power to the heating component, and the heating component is the heating component as described in any one of claims 1-7; the controller is connected to the heating component and is used to control the heating component to generate heat when the heating component is energized.

9. The aerosol forming apparatus according to claim 8, characterized in that, The heating component is the heating component as described in claim 1; the controller controls at least two of the heating zones to sequentially heat the aerosol forming matrix at corresponding positions.

10. The aerosol forming apparatus according to claim 9, characterized in that, The controller controls the heating temperature of each heating zone to be consistent; or the controller controls the heating temperature of the heating zone that heats up later to be lower than the heating temperature of the heating zone that heats up earlier.

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