Heating structure of aerosol generating device and aerosol generating device
By setting multiple heating bodies on the heating pipe of the heating tube of the non-combust cigarette device, the problem of poor adaptability of the device to cigarette supports of different lengths is solved, and an efficient heating effect is achieved for adapting to substrates of multiple lengths.
Patent Information
- Application Number
- CN202421250072.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-05-31
AI Technical Summary
The existing heating-not-combustible cigarette devices have poor adaptability to cigarette holders of different lengths.
A heating structure of an aerosol generator is designed, including a first heating element, a second heating element and a third heating element in the axial direction of the heating element. The three heating elements are located in different areas of the heating element, and jointly heat the aerosol-forming matrix.
With this structure, the aerosol generator can adapt to aerosol-forming substrates of multiple lengths to achieve a more uniform and efficient heating effect.
Smart Images
Figure CN222751466U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of aerosol generating devices, in particular to a heating structure of an aerosol generating device and an aerosol generating device. Background Art
[0002] Heat-not-burn cigarettes are an important new tobacco product that heats tobacco materials through external heat sources instead of burning cigarettes directly, producing smoke that gives smokers a physiologically satisfying smoking effect. Compared with traditional cigarettes, heat-not-burn cigarettes do not have a combustion process and do not produce harmful substances such as tar and carbon monoxide, greatly reducing the harm of smoking to consumers and the people around them.
[0003] The aerosol-forming matrix of heat-not-burn cigarettes needs to be heated and smoked with the help of an aerosol generating device. A heating body is provided in the heat-not-burn cigarette, which is used to generate heat energy to heat the cigarette. However, the current heat-not-burn cigarettes can only adapt to cigarettes of corresponding lengths, and the adaptability is poor. Utility Model Content
[0004] The utility model provides a heating structure of an aerosol generating device and an aerosol generating device, which are mainly used to solve the problem that the existing heat-not-burn cigarettes have poor adaptability to cigarettes of different lengths.
[0005] In one embodiment, a heating structure of an aerosol generating device is provided, comprising:
[0006] A heating tube, the heating tube having a heating cavity for accommodating an aerosol-forming matrix, the heating tube having a first end and a second end in the axial direction, a first heating zone and a second heating zone being arranged on a circumferential side of the heating tube, the first heating zone being close to the first end, and the second heating zone being close to the second end;
[0007] A first heating element is disposed in the first heating area;
[0008] A second heating element is arranged on a side of the second heating area close to the first heating area;
[0009] The third heating element is arranged on a side of the second heating area away from the first heating area.
[0010] In one embodiment, the second heating zone includes a first sub-heating zone, a second sub-heating zone and a third sub-heating zone arranged in sequence from the first end to the second end;
[0011] The first sub-heating zone includes the second heat generating element, the second sub-heating zone includes the second heat generating element and the third heat generating element, and the third sub-heating zone includes the third heat generating element.
[0012] In one embodiment, the second heating element and the third heating element in the second sub-heating zone each occupy half of the area; or,
[0013] The second heating element has an area larger than that of the third heating element.
[0014] In one embodiment, the second heating element and the third heating element are respectively arranged in two diagonally separated areas in the second heating zone.
[0015] In one embodiment, the heating part of the first heating element is a first heating circuit, the heating part of the second heating element is a second heating circuit, and the heating part of the third heating element is a third heating circuit;
[0016] The first heating circuit is bent and arranged in the first heating area, and the second heating circuit and the third heating circuit are bent and arranged in the second heating area.
[0017] In one embodiment, a common electrode of the first heating circuit, the second heating circuit and the third heating circuit is disposed in a boundary area between the first heating area and the second heating area;
[0018] The first electrode of the first heating circuit, the second electrode of the second heating circuit and the third electrode of the third heating circuit are arranged to be insulated from each other.
[0019] In one embodiment, the first heating circuit, the second heating circuit and the third heating circuit are long strip structures.
[0020] In one embodiment, the first heating circuit includes at least one first radial circuit arranged perpendicular to the axial direction of the heating tube in the first heating zone, and the radial width of the first radial circuit is close to the width of the first heating zone;
[0021] and / or the second heating circuit includes at least one second radial circuit arranged perpendicular to the axial direction of the heating tube in both the first sub-heating zone and the second sub-heating zone, and the radial width of the second radial circuit in the second sub-heating zone is smaller than the width of the second radial circuit in the first sub-heating zone;
[0022] And / or the third heating circuit includes at least one third radial circuit arranged perpendicular to the axial direction of the heating tube in both the second sub-heating zone and the third sub-heating zone, and the radial width of the third radial circuit in the second sub-heating zone is smaller than the width of the third radial circuit in the third sub-heating zone.
[0023] In one embodiment, the first heating element, the second heating element and the third heating element are configured to generate heat simultaneously, or to generate heat in pairs, or to generate heat independently.
[0024] According to a second aspect, an aerosol generating device is provided, comprising the heating structure of the aerosol generating device described above.
[0025] The heating structure of the aerosol generating device according to the above embodiment includes: a heating tube, the heating tube has a heating cavity for accommodating an aerosol-forming matrix, the heating tube has a first end and a second end in the axial direction, and the circumferential side of the heating tube is provided with a first heating zone and a second heating zone, the first heating zone is close to the first end, and the second heating zone is close to the second end; a first heating element is arranged in the first heating zone; a second heating element is arranged on a side of the second heating zone close to the first heating zone; and a third heating element is arranged on a side of the second heating zone away from the first heating zone. By respectively arranging the first heating element, the second heating element and the third heating element in the axial direction of the heating tube, the three sections of heating elements can heat the aerosol-forming matrix, thereby achieving the effect that the aerosol generating device is adapted to aerosol-forming matrices of various lengths. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 A schematic diagram of the three-dimensional structure of a heating structure in an embodiment;
[0027] Figure 2 is a cross-sectional view of a heating structure in an embodiment;
[0028] Figure 3 Schematic diagram of six arrangement structures of the first heating element, the second heating element and the third heating element provided in one embodiment;
[0029] Figure 4 It is a schematic diagram of the arrangement structure of the first heating circuit, the second heating circuit and the third heating circuit of the heating structure of an embodiment;
[0030] Figure 5 1 is a cross-sectional view of an aerosol generating device in one embodiment.
[0031] The reference numerals are as follows:
[0032] 100-heating structure, 200-matrix, A-first end, A1-first heating zone, B-second end, B1-second heating zone, B2-first sub-heating zone, B3-second sub-heating zone, B4-third sub-heating zone, 101-heating tube, 102-heating cavity, 103-first heating element, 104-second heating element, 105-third heating element, 106-first heating circuit, 107-second heating circuit, 108-third heating circuit, 109-common electrode, 110-first electrode, 111-second electrode, 112-third electrode, 300-mounting base, 400-shell. DETAILED DESCRIPTION
[0033] The present invention is further described in detail below by specific embodiments in conjunction with the accompanying drawings. Wherein similar elements in different embodiments adopt associated similar element numbers. In the following embodiments, many detailed descriptions are intended to enable the present application to be better understood. However, those skilled in the art can easily recognize that some of the features can be omitted in different situations, or can be replaced by other elements, materials, and methods. In some cases, some operations related to the present application are not shown or described in the specification, in order to avoid the core part of the present application being overwhelmed by too much description, and for those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations based on the description in the specification and the general technical knowledge in the art.
[0034] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate manner to form various implementations. At the same time, the steps or actions in the method description can also be interchanged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the various sequences in the specification and the drawings are only for the purpose of clearly describing a certain embodiment and are not meant to be a required sequence, unless otherwise specified that a certain sequence must be followed.
[0035] The serial numbers of the components in this document, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings).
[0036] In one embodiment, a heating structure 100 of an aerosol generating device is provided, including: a heating tube 101, wherein the heating tube 101 has a heating cavity 102 for accommodating an aerosol-forming matrix 200, wherein the heating tube 101 has a first end A and a second end B in the axial direction, and a first heating zone A1 and a second heating zone B1 are provided on the circumferential side of the heating tube 101, wherein the first heating zone A1 is close to the first end A, and the second heating zone B1 is close to the second end B; a first heating element 103 is arranged in the first heating zone A1; a second heating element 104 is arranged on a side of the second heating zone B1 close to the first heating zone A1; and a third heating element 105 is arranged on a side of the second heating zone B1 away from the first heating zone A1.
[0037] See also Figures 1 to 3 In this embodiment, the heating structure 100 of the aerosol generating device includes: a heating tube 101, the heating tube 101 has a heating cavity 102 for accommodating a matrix 200, the matrix 200 can be inserted into the heating cavity 102, and can generate aerosol after being heated by the heating tube 101, the heating tube 101 has a first end A and a second end B in the axial direction, the heating tube 101 also has a first heating zone A1 and a second heating zone B1, wherein the first heating zone A1 is arranged close to the first end A, and the second heating zone B1 is arranged close to the second end B; the first heating zone A1 also includes a first heating element 103, and the second heating zone B1 also includes a second heating element 104 and a third heating element 105, wherein the second heating element 104 is arranged on a side of the second heating zone B1 close to the first heating zone A1, and the third heating element 105 is arranged on a side of the second heating zone B1 away from the first heating zone A1. See Figure 3 , Figure 3 Six arrangements of the first heating element 103, the second heating element 104 and the third heating element 105 are provided for reference. It can be understood that, except Figure 3 In addition to the six methods shown, other structures that conform to the setting principles of the first heating element 103, the second heating element 104 and the third heating element 105 provided in this embodiment are all within the protection scope of this embodiment.
[0038] It can be understood that in this embodiment, the first heating element 103, the second heating element 104 and the third heating element 105 are arranged in a ring around the heating tube 101, and the area of the second heating zone B1 is larger than that of the first heating zone A1.
[0039] See also Figure 1 and Figure 3 , Figure 3 for Figure 1The schematic diagram of the structure of the heating tube 101 in the state of being axially expanded, wherein the first heating element 103, the second heating element 104 and the third heating element 105 are all arranged in a ring around the heating tube 101, so as to heat the heating tube 101 around a circle, so that the substrate 200 is heated more evenly. Since the second heating element 104 and the third heating element 105 are arranged in the second heating zone B1 at the same time, in order to allow the three heating elements to produce a relatively good and uniform heating effect, the area of the second zone B1 is larger than the first heating zone A1.
[0040] In another embodiment, the second heating zone B1 includes a first sub-heating zone B2, a second sub-heating zone B3 and a third sub-heating zone B4 arranged in sequence from the first end A to the second end B; the first sub-heating zone B2 includes the second heating element 104, the second sub-heating zone B3 includes the second heating element 104 and the third heating element 105, and the third sub-heating zone B4 includes the third heating element 105.
[0041] See also Figure 3 , the second heating zone B1 composed of the second heating element 104 and the third heating element 105 includes the first sub-heating zone B2, the second sub-heating zone B3 and the third sub-heating zone B4 from the first end A to the second end B, wherein the first sub-heating zone B2 includes the second heating element 104, the second sub-heating zone B3 includes the second heating element 104 and the third heating element 105, and the third sub-heating zone B3 includes the third heating element 105. It should be noted that in this embodiment, the inclusion of the second heating element 104 in the first sub-heating zone B2 does not limit the first sub-heating zone B2 to only include the second heating element 104. In other embodiments, the first sub-heating zone B2 may also include a small portion of the third heating element 105, such as Figure 3 3-1, 3-3, 3-4, 3-5 and 3-6 in the figure; similarly, in this embodiment, the third sub-heating area B4 includes the third heating element 105, but it is not limited to the third sub-heating area B4 only including the third heating element 105. In other embodiments, the third sub-heating area B4 may also include a small part of the second heating element 104, such as Figure 3 As shown in 3-1, 3-3, 3-4 and 3-5.
[0042] In another embodiment, the second heating element 104 and the third heating element 105 each occupy half of the area in the second sub-heating area B3; or, the second heating element 104 is larger than the area occupied by the third heating element 105.
[0043] See also Figure 3 The second heating element 104 and the third heating element 105 are provided in the second heating sub-area B3, wherein the second heating element 104 and the third heating element 105 can each occupy half of the area of the second heating sub-area B3. Figure 3 3-1, 3-2, 3-3 and 3-4, the area occupied by the second heating element 104 can also be made larger than the area occupied by the third heating element 105, so as to increase the proportion of heat generated by the second heating element 104. Figure 3 As shown in Figures 3-6, since the second heating element 104 is located in the middle section of the heating tube 101, it can heat substrates 200 of most sizes, so increasing the area ratio of the second heating element 104 can improve the heating efficiency of the substrate 200. Of course, it is understandable that in other embodiments, the area occupied by the second heating element 104 in the second sub-heating area B3 can be smaller than the area occupied by the third heating element 105 as needed.
[0044] In another embodiment, the second heating element 104 and the third heating element 105 are respectively disposed in two diagonally separated areas in the second heating area B1.
[0045] See also Figure 3 , Figure 3 is a circumferential side view of the heating tube 101 in the unfolded state, Figure 3 3-1, 3-3 and 3-4 in the figure are that the second heating element 104 and the third heating element 105 are respectively arranged in two diagonally separated areas in the second heating zone B1; the second heating element 104 and the third heating element 105 are respectively arranged in two diagonally separated areas in the second heating zone B1. This arrangement allows the second heating zone B1 to heat different positions of substrates 200 of different lengths as needed when heating the substrate 200, so as to improve adaptability and improve the uniformity and concentration of aerosol generated by the substrate 200. For example, when the inserted substrate 200 is relatively short, , first heat the second heating element 104 to achieve rapid generation of aerosol; then the second heating element 104 assists in heating, and the third heating element 105 performs the main heating to fully bake the matrix 200 and improve the continuity of inhalation; when the inserted matrix 200 is relatively long, first heat the first heating element 103 to achieve rapid smoke output; then the first heating element 103 assists in heating, and the second heating element 104 performs the main heating to bake the middle section of the matrix 200; finally, the first heating element 103 and the second heating element 104 perform the auxiliary heating, and the third heating element 105 performs the main heating to fully bake the matrix 200 and enhance the continuity of inhalation.
[0046] In another embodiment, the heating portion of the first heating element 103 is a first heating circuit 106, the heating portion of the second heating element 104 is a second heating circuit 107, and the heating portion of the third heating element 105 is a third heating circuit 108; the first heating circuit 106 is bent and arranged in the first heating area A1, and the second heating circuit 107 and the third heating circuit 108 are bent and arranged in the second heating area B1.
[0047] See also Figure 4 The heating element in the heating tube 101 generally includes but is not limited to a heating part and a heat-conducting part, wherein the heating part is used to generate heat, and the heat-conducting part is used to transfer the heat generated by the heating part. Therefore, in this embodiment, the heating part of the first heating element 103 is the first heating circuit 106, the heating part of the second heating element 104 is the second heating circuit 107, and the heating part of the third heating element 105 is the third heating circuit 108, wherein the first heating circuit 106 is bent and arranged in the first heating zone A1, and the second heating circuit 107 and the third heating circuit 108 are bent and arranged in the second heating zone B1. The bending of the heating circuit in the heating zone allows the heating circuit to occupy more surface area, thereby improving the heating efficiency and the uniformity of heat distribution in the heating zone.
[0048] In another embodiment, a common electrode 109 of the first heating circuit 106, the second heating circuit 107 and the third heating circuit 108 is provided at the boundary area between the first heating area A1 and the second heating area B1; the first electrode 110 of the first heating circuit 106, the second electrode 111 of the second heating circuit 107 and the third electrode 112 of the third heating circuit 108 are spaced and insulated.
[0049] See also Figure 4 The common electrode 109 of the first heating circuit 106, the second heating circuit 107 and the third heating circuit 108 is arranged at the boundary area between the first heating area A1 and the second heating area B1, and the first electrode 110 of the first heating circuit 106, the second electrode 111 of the second heating circuit 107 and the third electrode 112 of the third heating circuit 108 are arranged in an insulated manner; the common electrode 109 is arranged in multiple heating circuits to reduce the occupied area of the electrode and increase the heating area of the heating circuit. It can be understood that in other embodiments, multiple heating circuits may not share electrodes, or only some heating circuits may share electrodes.
[0050] In another embodiment, the first heating circuit 106 , the second heating circuit 107 and the third heating circuit 108 are long strip structures.
[0051] See also Figure 4 , setting the heating circuit to a long strip structure can increase the heating area and improve the heating efficiency. Of course, it is understandable that the materials of the heating circuit include but are not limited to resistor circuits and semiconductor circuits.
[0052] In another embodiment, the first heating circuit 106 includes at least one first radial circuit arranged perpendicularly to the axial direction of the heating tube 101 in the first heating zone A1, and the radial width of the first radial circuit is close to the width of the first heating zone A1; and / or the second heating circuit 107 includes at least one second radial circuit arranged perpendicularly to the axial direction of the heating tube 101 in both the first sub-heating zone B2 and the second sub-heating zone B3, and the radial width of the second radial circuit in the second sub-heating zone B3 is smaller than the width of the second radial circuit in the first sub-heating zone B2; and / or the third heating circuit 108 includes at least one third radial circuit arranged perpendicularly to the axial direction of the heating tube 101 in both the second sub-heating zone B3 and the third sub-heating zone B4, and the radial width of the third radial circuit in the second sub-heating zone B3 is smaller than the width of the third radial circuit in the third sub-heating zone B4.
[0053] See also Figure 4 The first heating circuit 106 can be composed of one heating circuit, or of course, multiple heating circuits. When the first heating circuit 106 includes one heating circuit, it includes a first radial circuit arranged perpendicular to the axial direction (i.e., AB or BA direction) of the heating tube 101. The specific number of sections of the first radial circuit can be adjusted according to actual needs. Figure 4 The first radial circuit in the embodiment includes two sections. Of course, it can be understood that the first heating circuit 106 includes, in addition to the first radial circuit, a first connecting circuit connecting each section of the first radial circuit and the electrode. Figure 4 The circuit includes a circuit extending from the common electrode 109 and a bending circuit for connecting the upper and lower sections of the first radial circuit. In this embodiment, in order to improve the heating efficiency, the radial width of the first radial circuit is made close to the width of the first heating area A1. It can be understood that in some other implementations, the first heating circuit 106 can be set only in a partial area of the first heating area A1.
[0054] See also Figure 4 The second heating circuit 107 can be composed of one heating circuit, or of course, multiple heating circuits. When the second heating circuit 107 includes one heating circuit, it includes a second radial circuit arranged perpendicular to the axial direction (i.e., AB or BA direction) of the heating tube 101. The specific number of sections of the second radial circuit can be adjusted according to actual needs. Of course, since the second heating circuit 107 includes a portion of the first sub-heating area B2 and a portion of the second sub-heating area B2, the second heating circuit 107 actually includes at least two sections of the second radial circuit. Figure 4The second radial circuit in the embodiment includes three sections, wherein the longest section of the second radial circuit is arranged in the first sub-heating zone B2, and the other two shorter second radial circuits are arranged in the second sub-heating zone B3. Of course, it can be understood that the second heating circuit 107 includes, in addition to the second radial circuit, a second connecting circuit connecting each section of the second radial circuit and the electrode. Figure 4 The circuit includes a circuit extending from the common electrode 109 and a bending circuit for connecting the upper and lower sections of the second radial circuit, and a circuit connected to the second electrode 111.
[0055] See also Figure 4 The third heating circuit 108 can be composed of one heating circuit, or of course, multiple heating circuits. When the third heating circuit 108 includes one heating circuit, it includes a third radial circuit arranged perpendicular to the axial direction (i.e., AB or BA direction) of the heating tube 101. The specific number of sections of the third radial circuit can be adjusted according to actual needs. Of course, since the third heating circuit 108 includes a portion of the third sub-heating area B4 and a portion of the second sub-heating area B2, the third heating circuit 108 includes at least two sections of the third radial circuit. Figure 4 The third radial circuit in the embodiment includes four sections, wherein the longest section of the third radial circuit is arranged in the third sub-heating zone B4, and the other three shorter third radial circuits are arranged in the second sub-heating zone B3. Of course, it can be understood that the third heating circuit 108 includes, in addition to the third radial circuit, a third connecting circuit connecting each section of the third radial circuit and the electrode. Figure 4 The circuit includes a circuit extending from the common electrode 109 , a bending circuit for connecting the upper and lower sections of the third radial circuit, and a circuit connected to the third electrode 112 .
[0056] It should be noted that, although the first heating zone A1 and the second heating zone B1 are adjacent to each other in the drawings of the specification provided in the embodiments of the utility model, in some other embodiments, there may be a first preset length of spacing between the first heating zone A1 and the second heating zone B1; the first sub-heating zone B2, the second sub-heating zone B3 and the third sub-heating zone B4 are adjacent to each other, but in some other embodiments, there may also be a second preset length of spacing between the first sub-heating zone B2, the second sub-heating zone B3 and the third sub-heating zone B4.
[0057] In another embodiment, the first heating element, the second heating element and the third heating element are configured to generate heat simultaneously, or to generate heat in pairs, or to generate heat independently.
[0058] In another embodiment, the heating structure 100 of the aerosol generating device further includes a mounting base 300 , and the second end B of the heating tube is mounted on the mounting base 300 .
[0059] See also Figure 1 and Figure 2 The second end B of the heating tube 101 of the heating structure 100 of the aerosol generating device is installed on the mounting base 300. The mounting base 300 is mainly used to heat the air entering the second end B to prevent the low temperature of the air entering the second end B from lowering the temperature of the second heating area B1.
[0060] This embodiment also provides an aerosol generating device, which includes a heating structure 100 of an aerosol generating device provided in the utility model application.
[0061] See also Figure 5 The aerosol generating device is a heating-not-burning device, and includes a shell 400 and a heating structure 100 in any of the above-mentioned embodiments, and the heating structure 100 is installed in the shell 400. The shell 400 has a socket, and the socket is aligned with the heating cavity 102 and the heat-conducting cavity of the heating structure 100, so that the aerosol generating matrix 200 can pass through the socket of the shell 400 and be plugged into the heating structure 100; and, the other end of the shell 400 is provided with an air inlet channel, and the air inlet channel is connected with the mounting base 300, so that the outside air can pass through the shell 400 into the mounting base 300 to be heated and enter the aerosol generating matrix 200. There are also power supplies and wires in the shell 400. The power supply is connected to the first heating circuit 106, the second heating circuit 107 and the third heating circuit 108 through the wires. The power supply supplies power to the first heating circuit 106, the second heating circuit 107 and the third heating circuit 108. The first heating circuit 106, the second heating circuit 107 and the third heating circuit 108 convert the electrical energy into thermal energy. The thermal energy can heat the circumference of the aerosol generating matrix 200 and heat the air entering the aerosol generating matrix 200.
[0062] The aerosol generating device in this embodiment comprises a heating tube 101: a heating tube 101 having a heating chamber 102 for accommodating an aerosol forming matrix 200, the heating tube 101 having a first end A and a second end B in the axial direction, the first end A also including a first heating zone A1, and the second end B also including a second heating zone B1; a first heating element 103, arranged in the first heating zone A1; a second heating element 104, arranged on the side of the second heating zone B1 close to the first heating zone A1; and a third heating element 105, arranged on the side of the second heating zone B1 away from the first heating zone A1. By respectively arranging the first heating element 103, the second heating element 104 and the third heating element 105 in the axial direction of the heating tube 101, the three sections of heating elements can heat the aerosol forming matrix, thereby achieving the effect that the aerosol generating device is adapted to aerosol forming matrices 200 of various lengths.
[0063] The above specific examples are used to illustrate the present invention, which are only used to help understand the present invention and are not intended to limit the present invention. For those skilled in the art of the present invention, some simple deductions, deformations or substitutions can be made based on the idea of the present invention.
Claims
1. A heating structure of an aerosol generating device, characterized in that: include: A heating tube, the heating tube having a heating cavity for accommodating an aerosol-forming matrix, the heating tube having a first end and a second end in the axial direction, a first heating zone and a second heating zone being arranged on a circumferential side of the heating tube, the first heating zone being close to the first end, and the second heating zone being close to the second end; A first heating element is disposed in the first heating area; A second heating element is arranged on a side of the second heating area close to the first heating area; The third heating element is arranged on a side of the second heating area away from the first heating area.
2. The heating structure of the aerosol generating device according to claim 1, characterized in that: The second heating zone includes a first sub-heating zone, a second sub-heating zone and a third sub-heating zone arranged in sequence from the first end to the second end; The first sub-heating zone includes the second heat generating element, the second sub-heating zone includes the second heat generating element and the third heat generating element, and the third sub-heating zone includes the third heat generating element.
3. The heating structure of the aerosol generating device according to claim 2, characterized in that: The second heating element and the third heating element in the second sub-heating zone each occupy half of the area; or, The second heating element has an area larger than that of the third heating element.
4. The heating structure of the aerosol generating device according to claim 2, characterized in that: The second heating element and the third heating element are respectively arranged in two diagonally separated areas in the second heating zone.
5. The heating structure of the aerosol generating device according to any one of claims 2 to 4, characterized in that: The heating part of the first heating element is a first heating circuit, the heating part of the second heating element is a second heating circuit, and the heating part of the third heating element is a third heating circuit; The first heating circuit is bent and arranged in the first heating area, and the second heating circuit and the third heating circuit are bent and arranged in the second heating area.
6. The heating structure of the aerosol generating device according to claim 5, characterized in that: The common electrode of the first heating circuit, the second heating circuit and the third heating circuit is arranged at the boundary area between the first heating area and the second heating area; The first electrode of the first heating circuit, the second electrode of the second heating circuit and the third electrode of the third heating circuit are arranged to be insulated from each other.
7. The heating structure of the aerosol generating device according to claim 5, characterized in that: The first heating circuit, the second heating circuit and the third heating circuit are long strip structures.
8. The heating structure of the aerosol generating device according to claim 7, characterized in that: The first heating circuit includes at least one first radial circuit arranged perpendicular to the axial direction of the heating tube in the first heating zone, and the radial width of the first radial circuit is close to the width of the first heating zone; and / or the second heating circuit includes at least one second radial circuit arranged perpendicular to the axial direction of the heating tube in both the first sub-heating zone and the second sub-heating zone, and the radial width of the second radial circuit in the second sub-heating zone is smaller than the width of the second radial circuit in the first sub-heating zone; And / or the third heating circuit includes at least one third radial circuit arranged perpendicular to the axial direction of the heating tube in both the second sub-heating zone and the third sub-heating zone, and the radial width of the third radial circuit in the second sub-heating zone is smaller than the width of the third radial circuit in the third sub-heating zone.
9. The heating structure of the aerosol generating device according to claim 1, characterized in that: The first heat generating element, the second heat generating element, and the third heat generating element are configured to generate heat simultaneously, or to generate heat in pairs, or to generate heat independently.
10. An aerosol generating device, characterized in that: It comprises the heating structure of the aerosol generating device as described in any one of claims 1 to 9.