Heating body and heat-not-burn device

Abstract

This application relates to the field of aerosol generation technology, and more specifically to a heating element and a heating non-combustible device. The heating element has a heating cavity for accommodating aerosol-generating products. The heating element has a first end and a second end arranged opposite each other along its axial direction. The first end is used for inserting the aerosol-generating product into the heating cavity. The heating element has at least one heating zone, each heating zone having a perforated structure extending along a predetermined path to form an integral heating circuit within the heating zone. The heating circuit generates heat when energized to heat the aerosol-generating product in the corresponding heating zone. By providing a perforated structure on the heating element, the heating circuit is integrally formed on the heating element, reducing the complexity of the heating element structure. The heating element is made entirely of the same material, which helps reduce power consumption and improve heating efficiency. The different heating zones allow for heating with different heating curves.

Description

Technical Field

[0001] This application relates to the field of aerosol generation technology, and more specifically to a heating element and a heating non-combustible device. Background Technology

[0002] Aerosol generation products typically generate the desired aerosol at temperatures insufficient for combustion. This heating method generally employs an aerosol generation device, which typically uses a tubular heating structure to circumferentially heat the aerosol product. In traditional aerosol generation devices, to ensure more thorough heating, the tubular heating structure is usually composed of multiple materials or composite structures. This type of structure is relatively complex and results in higher power consumption, reducing heating efficiency. Utility Model Content

[0003] This application provides a heating element and a heating non-combustible device, which can solve the technical problems of high power consumption and low heating efficiency caused by the complex structure of the heating element or the large amount of materials used in its preparation.

[0004] To achieve the above-mentioned technical objectives, this application provides a heating element of a heating non-combustible device, wherein the heating element has a heating cavity for accommodating an aerosol generating product; the heating element has a first end and a second end disposed opposite to each other along its axial direction, the first end being used for inserting the aerosol generating product into the heating cavity.

[0005] The heating element has at least one heating zone, each heating zone having a hollow structure. The hollow structure extends along a preset path in the heating zone to form an integral heating circuit within the heating zone. The heating circuit is used to generate heat when energized to heat the aerosol-generated product in the corresponding heating zone.

[0006] In some optional embodiments, at least one of the heating zones is arranged sequentially along the axial direction of the heating body or sequentially along the circumference of the heating body; the hollow structure of each heating zone extends along the axial or circumference of the heating body.

[0007] In some optional embodiments, the heating element further includes a non-heating area and a support portion. The non-heating area surrounds the heating area, and the support portion connects the non-heating area and the heating area. The heating area, the non-heating area, and the support portion are integrally formed. The heating area, the non-heating area, and the support portion are made of a conductive metallic material or a metal-ceramic material. The heating area, the non-heating area, and the support portion are all provided with a high-temperature resistant coating. The line width of the support portion is smaller than the line width of the heating circuit.

[0008] In some optional embodiments, the heating circuit includes a heating unit and an electrode portion, wherein the heating unit extends in a bent shape along the axial or circumferential direction of the heating body; the electrode portion is disposed at the first and last ends of the heating unit, and the electrode portion is used for conductive connection with the power supply component.

[0009] In some optional embodiments, the heating unit includes multiple extensions and multiple bends, the multiple extensions being arranged parallel to or intersecting each other, and the bends being provided between two adjacent extensions; the extensions are straight or curved structures.

[0010] The heating element also includes a non-heating area, which surrounds the heating area.

[0011] The hollow structure includes a first hollow portion, a second hollow portion, and a third hollow portion. The first hollow portion is disposed between two adjacent extension portions to separate the adjacent extension portions. The second hollow portion is disposed between the extension portions and the non-heated area to separate the extension portions and the non-heated area. The third hollow portion is disposed between the bent portion and the non-heated area to separate the bent portion and the non-heated area.

[0012] In some alternative embodiments, the heating temperature of the heating zone near the first end is greater than the heating temperature of the heating zone away from the first end.

[0013] In some optional embodiments, the line width of the heating line in the heating zone near the first end is smaller than the line width of the heating line in the heating zone away from the first end;

[0014] And / or, the line width of the hollow structure in the heating zone near the first end is smaller than the line width of the hollow structure in the heating zone away from the first end.

[0015] In some optional embodiments, the linewidth of the heating circuit ranges from 0.3mm to 2mm.

[0016] In some optional embodiments, there are two heating zones, including a first sub-heating zone and a second sub-heating zone arranged adjacent to each other, and there are two heating circuits, including a first sub-heating circuit and a second sub-heating circuit arranged adjacent to each other. The first sub-heating circuit is located in the first sub-heating zone, and the second sub-heating circuit is located in the second sub-heating zone. The first sub-heating circuit and the second sub-heating circuit are connected in series or in parallel, and the first sub-heating circuit and the second sub-heating circuit share a common electrode portion.

[0017] This application also provides a heating non-combustible device, including a power supply component and a heating element as described above, wherein the power supply component is used to supply power to the heating element.

[0018] According to the heating element and the non-combustible heating device in this embodiment, the heating circuit is formed by setting a hollow structure on the heating element. The heating circuit is used directly as a heat source to heat the aerosol-generated product. This allows the heating circuit to be integrally formed on the heating element, reducing the complexity of the heating element structure. Furthermore, since the heating circuit is formed by setting a hollow structure on the heating element, the entire heating element is made of a single material, which helps reduce the overall power consumption of the heating element and improve its heating efficiency. Because the heating element has multiple hollow structures, its weight can be reduced. The temperature of the heating element can also be adjusted by designing hollow structures in different heating zones, which helps to heat the aerosol-generated product with different heating curves, thereby improving the user experience. Attached Figure Description

[0019] Figure 1 This is a structural cross-sectional view of the heating non-combustion device in use in one embodiment;

[0020] Figure 2 This is a three-dimensional schematic diagram of the heating element in one embodiment;

[0021] Figure 3 This is a schematic diagram of the distribution of different heating zones in one embodiment of the heating element when it is unfolded along the axial direction.

[0022] Figure 4 This is a schematic diagram of the distribution of different heating zones when the heating element is deployed along the axial direction in another embodiment;

[0023] Figure 5 This is a schematic diagram of the structure of the heating element in an axially deployed state in one embodiment;

[0024] Figure 6 for Figure 5 A magnified view of a portion of point B in the middle;

[0025] Figure 7 This is a schematic diagram of the heating element in one embodiment.

[0026] Among them: 1. Heating and non-combustible device;

[0027] 10. Housing assembly;

[0028] 20. Power supply components;

[0029] 30. Heating element; 31. Heating cavity; 311. First end; 312. Second end; 32. Heating area; 321. First sub-heating area; 322. Second sub-heating area; 33. Hollowed-out structure; 331. First hollowed-out part; 332. Second hollowed-out part; 333. Third hollowed-out part; 34. Heating circuit; 341. Heating unit; 3411. Extension part; 3412. Bending part; 342. Electrode part; 3421. First electrode part; 3422. Second electrode part; 3423. Third electrode part; 343. First sub-heating circuit; 344. Second sub-heating circuit; 35. Non-heating area; 36. Support part;

[0030] A. Aerosol-generated products; X. Circumferential direction; Y. Axial direction. Detailed Implementation

[0031] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. Similar elements in different embodiments are referred to by related similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0032] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments, and the operational steps involved in each embodiment can also be rearranged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for clearly describing a particular embodiment and do not imply that they represent the necessary components and / or order.

[0033] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).

[0034] Please see Figure 1This application provides a heat-not-burning device 1, which is an apparatus for heating an aerosol-generating product A to generate an aerosol using the principle of heat-not-burning. The heat-not-burning device 1 includes a power supply component 20 and a heating component. The power supply component 20 is used to supply power to the heating component, so that the heating component can generate heat when energized, in order to heat the aerosol-generating product A according to the heating curve (heating temperature of 250℃-350℃).

[0035] It should be noted that the term "aerosol" in this context refers to a dispersion of solid or liquid particles in a gas. The term "aerosol" as used herein can generally refer to substances that have been vaporized, atomized, sprayed, or jetted, or otherwise transformed from a solid or liquid form into an inhalable form containing suspended solid or liquid drug particles.

[0036] Aerosol-generating article A typically comprises a suction section, an airflow section, and a matrix section. The matrix section contains a matrix capable of generating aerosols, which is any suitable compound or mixture of compounds that facilitates aerosol formation during use, including but not limited to: polyols such as triethylene glycol, 1,3-butanediol, and glycerol; esters of polyols such as mono-, di-, or triacetic acid esters of glycerol; and aliphatic esters of mono-, di-, or polycarboxylic acids such as dimethyl dodecanoate and dimethyl tetradecanoate. Nicotine may also be included. Alternatively, glycerol (also known as glycerol) with a higher boiling point than nicotine may be included. Propylene glycol or plant-based materials may also be included. Aerosol-generating article A is typically constructed by winding the suction section, airflow section, and matrix section into a single structure using forming paper, and the shape of aerosol-generating article A is cylindrical (including near-cylindrical).

[0037] The heated non-combustible device 1 also includes a housing assembly 10, which is used to house the power supply assembly 20 and the heating assembly, so as to facilitate the user to carry, transport and use the heated non-combustible device 1. The housing assembly 10 can be understood as an assembly of multiple parts, and its interior is provided with a fixing structure for assembling the power supply assembly 20 and the heating assembly, such as fixing protrusions, fixing grooves, etc.

[0038] The heating component includes a support structure and a heating element 30. The heating element 30 is disposed within the housing assembly 10 via the support structure. If it is suspended within the housing assembly 10, heat transfer can be reduced, thereby improving heat utilization.

[0039] Please see Figures 2 to 7The heating body 30 has a heating cavity 31 for accommodating the aerosol-generating product A. The heating body 30 has a first end 311 and a second end 312 arranged opposite each other along its axial direction Y. The first end 311 is used for inserting the aerosol-generating product A into the heating cavity 31. The heating body 30 has at least one heating zone 32. Each heating zone 32 has a hollow structure 33. The hollow structure 33 extends along a preset path in the heating zone 32 to form an integral heating circuit 34 in the heating zone 32. The heating circuit 34 is used to generate heat when energized to heat the aerosol-generating product A in the corresponding heating zone 32.

[0040] The preset path of the hollow structure 33 is determined according to the desired path of the heating line 34. It is understood that the hollow structure 33 needs to extend along the path of the heating line 34, surround the heating path, and insulate the heating path from the rest of the part.

[0041] Specifically, a hollow structure 33 is engraved on the heating element 30 using laser or etching processes, ultimately forming a heating circuit 34 on the heating element 30 for heating after being energized. This differs from the traditional method of setting hollows or grooves on the tube body (non-resistive material) and placing resistive material in the hollows or grooves for heating. This application directly engraves the hollow structure 33 and the heating circuit 34 surrounded by the hollow structure 33 on the conductive heating element 30, which simplifies the structure of the heating element 30. This allows the heating circuit 34 and the heating element 30 to be an integrated structure made of the same material, thereby reducing the types of materials used in the heating element 30, avoiding the impact of multiple material composites on the heat utilization rate of the heating element 30, and also reducing the overall power consumption of the heating element 30.

[0042] Unlike the approach of using a single resistance tube as the heating element 30, this application sets at least one heating zone 32, allowing for independent settings for different heating zones 32. For example, the performance parameters of their heating circuits 34 can be designed independently. Alternatively, the heating zone 32 can be started independently to achieve zoned heating of the aerosol-generated product A, thereby enriching the taste of the aerosol or improving the consistency of the aerosol before and after aspiration.

[0043] It should be further explained that the performance parameters of the heating circuit 34 include material properties and structural characteristics. Since, under the same current conditions, a higher resistance results in a higher heating temperature, and a lower resistance results in a lower heating temperature, different heating temperatures can be obtained by changing the material and structural characteristics of the heating circuit 34 under the same current conditions. For example, when a high heating temperature is required, a material with high resistivity can be selected; when a low heating temperature is required, a material with low resistivity can be selected. Structural characteristics include the linewidth and thickness of the heating circuit 34. When the heating circuit 34 is made of the same material, its resistivity is the same. Different linewidth and thickness designs affect its resistance. Similarly, at high heating temperatures, the linewidth and thickness of the heating circuit 34 can be designed to increase its resistance, and at low heating temperatures, the linewidth and thickness can be designed to decrease its resistance.

[0044] In some embodiments, at least one heating zone 32 is sequentially arranged along the axial direction Y of the heating body 30. By arranging different heating zones 32 sequentially along the axial direction Y, different heating zones 32 can be activated sequentially along the axial direction Y. Since the aerosol flow path is shorter for heating zones 32 closer to the first end 311, and the time required to reach the suction section is shorter, these heating zones can be activated first, allowing the user to quickly obtain aerosol. Then, other heating zones 32 are activated sequentially, allowing the aerosol to be released gradually, thereby slowly increasing the aerosol content. This ensures that the aerosol content gradually increases throughout the suction process, without causing abrupt changes in taste that affect the user's experience. Please refer to [link to relevant documentation]. Figure 3 and Figure 4 , Figure 3 and Figure 4 for Figure 2 A schematic diagram of the structure unfolded along the Y-axis shows that the heating zone 32 includes a first sub-heating zone 321 and a second sub-heating zone 322. The first sub-heating zone 321 and the second sub-heating zone 322 are arranged sequentially along the Y-axis. The first sub-heating zone 321 is located near the first end 311, and the second sub-heating zone 322 is located near the second end 312. Both the first sub-heating zone 321 and the second sub-heating zone 322 are arranged around the heating body 30, allowing for more uniform heating of the aerosol-generated product A. In this embodiment, the hollow structure 33 of each heating zone 32 can extend along the Y-axis of the heating body 30, such as... Figure 3 As shown, it can also extend along the circumferential direction X of the heating element 30, such as... Figure 4 As shown.

[0045] In other embodiments, at least one heating zone 32 is sequentially arranged along the circumferential direction X of the heating body 30. To enhance the dynamic taste profile of the aerosol-generated product A, its matrix segment can be divided into different regions along the circumferential direction X, each region capable of generating different aerosols (with different flavors or concentrations). For this design, the heating zones 32 can be arranged along the circumferential direction X of the heating body 30. By sequentially controlling the energization of the heating circuits 34 of different heating zones 32, aerosols can be generated sequentially in the corresponding regions of the matrix segment, thereby improving the overall consistency or taste profile of the aerosols. For example, substances with different boiling points can be placed in different regions of the matrix segment, such as placing a low-boiling-point cooling type and a high-boiling-point sweet type in different regions. The temperature of the heating zone 32 corresponding to the cooling type region can be set lower than the temperature of the heating zone 32 corresponding to the sweet type region, and energized sequentially. This allows the cooling and sweet flavors to evaporate and release sequentially, providing the user with a cooling-then-sweet taste experience. Please refer to [link to relevant documentation]. Figure 3 This is a schematic diagram of the structure of the heating body 30 in the state of being unfolded along the axial direction Y. The heating zone 32 includes a first sub-heating zone 321 and a second sub-heating zone 322, which are arranged sequentially along the circumferential direction X. In this embodiment, the hollow structure 33 of each heating zone 32 can extend along the axial direction Y of the heating body 30 or along the circumferential direction X of the heating body 30.

[0046] In some embodiments, the area of ​​the heating zone 32 is smaller than the circumferential X-side area of ​​the heating body 30, that is, the heating body 30 also includes a non-heating zone 35, and the non-heating zone 35 surrounds the heating zone 32. The arrangement of the non-heating zone 35 can improve the overall strength of the heating body 30, so that it can maintain a fixed shape to accommodate and heat the aerosol-generated product A.

[0047] It is understandable that, since the heating circuit 34 of the heating zone 32 is formed by setting a hollow structure 33 on the heating body 30, the non-heating zone 35 and the heating zone 32 are integrally formed structures and made of the same material.

[0048] Furthermore, in order to better support the heating line 34, the heating body 30 also includes a support portion 36, which connects the non-heating area 35 and the heating area 32. The heating area 32, the non-heating area 35 and the support portion 36 are integrally formed; the line width of the support portion 36 is smaller than the line width of the heating line 34.

[0049] It should be noted that the heating line 34 has an extending direction, and the dimension in this extending direction is the line width. Specifically, when the heating line 34 extends in the axial direction Y, the line width is its dimension in the axial direction Y; when it extends in the circumferential direction X, the line width is its dimension in the circumferential direction X, such as... Figure 6 W1 in the figure represents the linewidth of the heating line 34. The linewidth of the support portion 36 is related to the dimension of the heating line 34 in the extending direction, as shown in the figure. Figure 6W2 in the figure represents the line width of the support section, which is 36.

[0050] Since the line width of the support portion 36 is smaller than that of the heating line 34, based on the current flow characteristics (the principle of the least resistance path), the current preferentially passes through the heating line between the support portions 36 with lower resistance, thereby making the heating zone 32 and the non-heating zone 35 insulated and isolated, effectively ensuring that the current passes through the heating zone 32, so that the heating zone 32 heats up.

[0051] In some embodiments, the heating zone 32, the non-heating zone 35, and the support portion 36 are made of a conductive metallic material or a metal-ceramic material. To improve the strength of the heating element 30, a high-temperature resistant coating is provided on the heating zone 32, the non-heating zone 35, and the support portion 36, which can improve high-temperature resistance and stability. This high-temperature resistant coating can be a high-temperature resistant glass coating.

[0052] In some embodiments, the heating circuit 34 includes a heating unit 341 and an electrode portion 342. The heating unit 341 extends in a bent shape along the axial direction Y or the circumferential direction X of the heating body 30. The electrode portion 342 is disposed at the first end and the last end of the heating unit 341 and is used to make a conductive connection with the power supply component 20.

[0053] In some specific embodiments, the heating unit 341 includes a plurality of extensions 3411 and a plurality of bends 3412. The plurality of extensions 3411 are parallel to each other, and a bend 3412 is provided between two adjacent extensions 3411 to form a serpentine bend extending heating line 34.

[0054] In other specific embodiments, multiple extensions 3411 are arranged intersecting each other, and a bend 3412 is provided between two adjacent extensions 3411 to form a grid-like heating line 34.

[0055] In some embodiments, the extension 3411 has a straight or curved structure. Since the curvature of the extension 3411 varies, the corresponding resistance is different, and the heat generated by the extension 3411 also varies. For example, the extension 3411 with a larger curvature has a higher heating temperature. To increase the heating temperature in the middle of the heating unit 341, it is set to a curved structure, thereby enabling different heating temperatures to be formed on the same heating unit. Compared to a straight structure, the curved structure of the heating unit 341 can better set a temperature gradient across the entire heating element 30.

[0056] Please see Figure 7In some embodiments, the hollow structure 33 includes a first hollow portion 331, a second hollow portion 332, and a third hollow portion 333. The first hollow portion 331 is disposed between two adjacent extension portions 3411 to separate the adjacent extension portions 3411; the second hollow portion 332 is disposed between the extension portion 3411 and the non-heating area 35 to separate the extension portion 3411 and the non-heating area 35; and the third hollow portion 333 is disposed between the bent portion 3412 and the non-heating area 35 to separate the bent portion 3412 and the non-heating area 35.

[0057] In some embodiments, at least one heating zone 32 is arranged sequentially along the axial direction Y of the heating body 30. The heating temperature of the heating zone 32 near the first end 311 is greater than that of the heating zone 32 away from the first end 311, thereby enabling the user to quickly obtain aerosols and use the lower-temperature heating zone 32 to slowly bake the heated aerosols to generate product A, so as to achieve a balance of aerosol content before and after.

[0058] In some embodiments, the linewidth of the heating line 34 in the heating zone 32 near the first end 311 is smaller than the linewidth of the heating line 34 in the heating zone 32 away from the first end 311. Since a larger linewidth of the heating line 34 results in a smaller resistance, the corresponding heating temperature of the heating line 34 is lower. The main objective of this application is to adjust the baking effect of the aerosol-generated product A, so that the aerosol can be released slowly and evenly. If the heating line 34 is divided into more gradient heating temperatures from the first end 311 to the second end 312 of the heating body 30, it is more conducive to the even, slow, and effective release of the aerosol, allowing the heating body 30 to perform more refined zone heating of the aerosol-generated product A. Based on this, from the first end 311 to the second end 312, the line width of the heating line 34 corresponding to each heating zone 32 continuously increases, which facilitates the slow release of substances in the cigarette and can preferentially and quickly bake the part of the cigarette close to the first end 311. For cigarettes in other heating zones 32, they will be baked in an orderly manner according to the energy gradient, so that the substances in the cigarette are released more slowly and evenly, while also helping to reduce power consumption.

[0059] In some embodiments, the linewidth W3 (the dimension in the direction of linewidth W1 of the heating line 34) of the hollow structure 33 in the heating zone 32 near the first end 311 is smaller than the linewidth W3 of the hollow structure 33 in the heating zone 32 away from the first end 311. Since the smaller the linewidth W3, the larger the effective heating area of ​​the heating line 34, the higher the heating temperature of the corresponding heating zone 32. Based on this, the linewidth W3 of the hollow structure 33 in each heating zone 32 gradually increases from the first end 311 to the second end 312, which can also achieve the purpose of preferentially and quickly baking the cigarette near the first end 311, while the cigarettes in other heating zones 32 are baked in an orderly manner according to the energy gradient, so that the substances in the cigarette are released more slowly and evenly.

[0060] In some specific embodiments, the line width W1 of the heating line 34 in the heating zone 32 and the line width W3 of the hollow structure 33 can be designed synchronously and in the same way, that is, they gradually increase from the first end 311 to the second end 312, thereby further increasing the heating temperature of the heating zone 32 near the first end 311.

[0061] In some embodiments, the effective heating area of ​​at least one heating zone 32 from the first end 311 to the second end 312 can be gradually reduced. The first end 311 has a large effective heating area, which can increase the heating temperature there and achieve the purpose of prioritizing rapid baking of the cigarette near the first end 311, so that the substances in the cigarette are released more slowly and evenly.

[0062] In some embodiments, the linewidth of the heating circuit 34 ranges from 0.3mm to 2mm. Specifically, the linewidth of the heating circuit 34 can be 0.3mm, 0.5mm, 1.0mm, or 2mm. The linewidth design of the heating circuit 34 is based on ensuring that the heating curve of the aerosol-generated product A is achieved, and ensuring that the heating body 30 has sufficient strength.

[0063] In some embodiments, there are two heating zones 32, including a first sub-heating zone 321 and a second sub-heating zone 322 arranged adjacent to each other, and two heating lines 34, including a first sub-heating line 343 and a second sub-heating line 344 arranged adjacent to each other. The first sub-heating line 343 is disposed in the first sub-heating zone 321, and the second sub-heating line 344 is disposed in the second sub-heating zone 322. The first sub-heating line 343 and the second sub-heating line 344 are connected in series or in parallel, and the first sub-heating line 343 and the second sub-heating line 344 share a common electrode portion 342, which includes a first electrode portion 3421, a second electrode portion 3422, and a third electrode portion 3423. One end of the heating unit in the first sub-heating line 343 is electrically connected to the first electrode portion 3421, and one end of the heating unit in the second sub-heating line 344 is electrically connected to the third electrode portion 3423. The other ends of the heating units in the first sub-heating line 343 and the other ends of the heating units in the second sub-heating line 344 are electrically connected to the second electrode portion 3422. Of course, in other embodiments, the number of heating zones 32 can also be three or more, and correspondingly, the number of heating lines 34 can also be three or more. Two adjacent heating lines 34 can share the same electrode part 342 to save the overall space occupied by the heating lines 34 and effectively increase the heating area.

[0064] The above examples illustrate this application only to aid understanding and are not intended to limit its scope. Those skilled in the art to which this application pertains can make various simple deductions, modifications, or substitutions based on the ideas presented.

Claims

1. A heating element of a non-combustible heating device, characterized in that, The heating body has a heating cavity for accommodating the aerosol generating product; the heating body has a first end and a second end disposed opposite to each other along its axial direction, the first end being used for inserting the aerosol generating product into the heating cavity. The heating element has at least one heating zone, each heating zone having a hollow structure. The hollow structure extends along a preset path in the heating zone to form an integral heating circuit within the heating zone. The heating circuit is used to generate heat when energized to heat the aerosol-generated product in the corresponding heating zone.

2. The heating element of the non-combustible heating device according to claim 1, characterized in that, At least one of the heating zones is arranged sequentially along the axial direction of the heating body or along the circumference of the heating body; the hollow structure of each heating zone extends along the axial direction or circumference of the heating body.

3. The heating element of the non-combustible heating device according to claim 1, characterized in that, The heating element further includes a non-heating area and a supporting portion. The non-heating area surrounds the heating area, and the supporting portion connects the non-heating area and the heating area. The heating area, the non-heating area, and the supporting portion are integrally formed. The heating area, the non-heating area, and the supporting portion are made of conductive metal material or metal-ceramic material. The heating area, the non-heating area, and the supporting portion are all provided with a high-temperature resistant coating. The line width of the support portion is smaller than the line width of the heating circuit.

4. The heating element of the non-combustible heating device according to claim 1, characterized in that, The heating circuit includes a heating unit and an electrode section. The heating unit extends in a bent shape along the axial or circumferential direction of the heating body. The electrode section is disposed at the first and last ends of the heating unit and is used to make a conductive connection with the power supply component.

5. The heating element of the non-combustible heating device according to claim 4, characterized in that, The heating unit includes multiple extensions and multiple bends. The multiple extensions are arranged parallel to each other or intersecting each other, and the bends are provided between two adjacent extensions. The extensions are straight or curved. The heating element also includes a non-heating area, which surrounds the heating area. The hollow structure includes a first hollow portion, a second hollow portion, and a third hollow portion. The first hollow portion is disposed between two adjacent extension portions to separate the adjacent extension portions. The second hollow portion is disposed between the extension portions and the non-heated area to separate the extension portions and the non-heated area. The third hollow portion is disposed between the bent portion and the non-heated area to separate the bent portion and the non-heated area.

6. The heating element of the non-combustible heating device according to claim 1, characterized in that, The heating temperature of the heating zone closer to the first end is greater than the heating temperature of the heating zone farther from the first end.

7. The heating element of the non-combustible heating device according to claim 6, characterized in that, The line width of the heating line in the heating zone near the first end is smaller than the line width of the heating line in the heating zone away from the first end. And / or, the line width of the hollow structure in the heating zone near the first end is smaller than the line width of the hollow structure in the heating zone away from the first end.

8. The heating element of the heating non-combustible device according to any one of claims 1-7, characterized in that, The line width of the heating circuit ranges from 0.3mm to 2mm.

9. The heating element of the non-combustible heating device according to claim 1, characterized in that, The heating zone is provided in two places, including a first sub-heating zone and a second sub-heating zone arranged adjacent to each other. The heating circuit is provided in two places, including a first sub-heating circuit and a second sub-heating circuit arranged adjacent to each other. The first sub-heating circuit is located in the first sub-heating zone, and the second sub-heating circuit is located in the second sub-heating zone. The first sub-heating circuit and the second sub-heating circuit are connected in series or in parallel, and the first sub-heating circuit and the second sub-heating circuit share a common electrode section.

10. A heating non-combustible device, characterized in that, It includes a power supply component and a heating element as described in any one of claims 1-9, wherein the power supply component is used to supply power to the heating element.

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