Heating element, atomization device and aerosol generating system

Abstract

The application relates to a heating element, an atomization device and an aerosol generating system. The heating element comprises: a base body configured to form an atomization channel for accommodating an aerosol generating article; a first heating body arranged at one end of the base body to form a first heating area on a channel wall of the atomization channel, the first heating area being used for heating a medium section; and a second heating body arranged at the other end of the base body to form a second heating area on the channel wall of the atomization channel, the second heating area being arranged adjacent to the first heating area and being used for heating a functional section; wherein the base body is formed of a low-thermal-conductivity material. The heating element can separately control the temperatures of different areas of the base body by using the first heating body and the second heating body, thereby forming a more accurate regional temperature field distribution.

Description

Technical Field

[0001] This application relates to the field of atomization technology, and in particular to a heating element, atomizing device and aerosol generation system. Background Technology

[0002] Aerosols are colloidal dispersion systems formed by solid or liquid particles dispersed and suspended in a gaseous medium. Aerosols can be absorbed by the human body through the respiratory system, providing users with a novel alternative absorption method. Atomizing devices are devices that generate aerosols from stored atomizing media through heating or ultrasound. Atomizing media include liquid, gel, paste, or solid aerosol-generating matrices. Atomizing these media delivers inhalable aerosols to users, replacing conventional product forms and absorption methods.

[0003] However, due to structural defects, the aerosols generated by atomizing devices that heat solid media tend to condense inside the device, reducing the utilization rate of the media. Furthermore, the condensate remaining in the atomizing device makes cleaning difficult. Utility Model Content

[0004] Therefore, it is necessary to provide a heating element, an atomizing device, and an aerosol generation system to address the problem of easy condensation of aerosols in atomizing devices.

[0005] A heating element is used to heat an atomized aerosol generating product, the aerosol generating product comprising a medium section and a functional section arranged sequentially, the heating element comprising:

[0006] The substrate is configured to form atomization channels for containing the aerosol-generated article;

[0007] A first heating element is disposed at one end of the substrate so that the channel wall of the atomizing channel forms a first heating zone, the first heating zone being used to heat the medium section;

[0008] A second heating element is disposed at the other end of the substrate to form a second heating zone in the channel wall of the atomization channel. The second heating zone is disposed adjacent to the first heating zone and is used to heat the functional segment.

[0009] In one embodiment, the substrate is formed of a material with low thermal conductivity.

[0010] In one embodiment, the thermal conductivity of the substrate is less than or equal to 3 W / (m·K).

[0011] In one embodiment, the first heating element includes a plurality of first sub-heating elements, all of which are arranged along the extension direction of the atomization channel; and / or

[0012] The second heating element includes a plurality of second sub-heating elements, all of which are arranged along the extension direction of the atomization channel.

[0013] In one embodiment, the first heating element is a heating film; and / or

[0014] The second heating element is a heating film.

[0015] An atomizing device is used to heat an atomized aerosol generating product, the aerosol generating product comprising a plug section, a medium section and a functional section connected in sequence, and the atomizing device including the aforementioned heating element.

[0016] In one embodiment, the atomizing device further includes a first limiting bracket and a second limiting bracket, which are respectively installed at opposite ends of the heating element.

[0017] In one embodiment, the atomizing device further includes a housing having an air inlet and an insertion port spaced apart, the first limiting bracket being positioned at the air inlet and the second limiting bracket being positioned at the insertion port.

[0018] In one embodiment, the atomizing device further includes a heat insulation element that covers the outside of the substrate.

[0019] An aerosol generation system includes the aforementioned atomizing device. The aerosol generation system further includes an aerosol generation product, which is inserted into the atomizing device. The aerosol generation product includes a plug section, a medium section, and a functional section connected in sequence.

[0020] The aforementioned heating element allows for individual temperature control of different regions of the substrate using both a first and a second heating element, resulting in a more precise regional temperature field distribution. While the first heating zone heats the medium section of the aerosol-generating product at a higher temperature to generate aerosols, the second heating zone heats the functional section of the aerosol-generating product at a lower temperature. This prevents the aerosol flowing from the medium section into the functional section from condensing and forming condensate, thereby improving the utilization rate of the aerosol-generating matrix, reducing the possibility of hygiene hazards caused by condensate backflow, and preventing the functional section from drying out due to excessively high temperatures in the second heating zone. This also prevents premature release of key substances and thermal deformation of the functional section. Attached Figure Description

[0021] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of an atomizing device according to an embodiment of this application, in which an aerosol-generating product is inserted.

[0024] Figure 2 This is a schematic diagram of the internal structure of an atomizing device according to an embodiment of this application when an aerosol generating product is inserted.

[0025] Figure 3 This is a schematic diagram of the internal structure of an atomizing device according to an embodiment of this application.

[0026] Figure 4 This is a schematic diagram of the structure of the heating element of an atomizing device according to an embodiment of this application.

[0027] Figure 5 This is a schematic diagram of the internal structure of the heating element of an atomizing device according to an embodiment of this application.

[0028] Figure 6 This is a schematic diagram of the assembly of a heating element and an aerosol generating article according to an embodiment of this application.

[0029] Figure 7 This is a schematic diagram of the internal structure of a heating element and an aerosol generating article in an assembled state according to an embodiment of this application.

[0030] Figure 8 This is a schematic diagram of a module of an atomizing device according to an embodiment of this application.

[0031] Figure 9 This is a schematic diagram of a control method for an atomizing device according to an embodiment of this application.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1000 Aerosol generation system; 100 Atomizing device; 120 Outer shell; 121 Main shell; 121a Insertion port; 123 Bottom cover; 123a Air inlet; 120a Receptacle; 140 Atomizer; 141 Heating element; 1412 Substrate; 1412a Atomizing channel; 1414 Heating element; 1414a First heating element; 1414b Second heating element; 143 First limiting bracket; 145 Second limiting bracket; 147 Heat insulation component; 160 Battery assembly; 180 Control element; 181 Processor; 183 Memory; 190 Airflow sensor;

[0034] 200. Aerosol generating product; 210. Plug section; 220. Medium section; 230. Functional section; 240. Hollow section. Detailed Implementation

[0035] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0036] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0037] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0038] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0039] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0040] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0041] See Figures 1 to 3 An embodiment of this application provides an atomizing device 100 for heating an aerosol generating article 200 to generate an aerosol for user use.

[0042] The atomizing device 100 includes a housing 120, an atomizer 140, a battery assembly 160, and a control element 180. Both the atomizer 140 and the battery assembly 160 are housed within the housing 120. The control element 180 is located between the atomizer 140 and the battery assembly 160 and is electrically connected to both. Under the control of the control element 180, the atomizer 140 heats up under the electrical energy of the battery assembly 160, thereby heating the atomized aerosol generating product 200 to produce an aerosol.

[0043] Please combine Figures 2 to 4 As shown, the aerosol generating product 200 has a cylindrical structure, including a plug section 210, a medium section 220, a functional section 230 and a hollow section 240 arranged sequentially along the axial direction.

[0044] The atomizing section 210 includes porous adsorption materials such as cotton to adsorb aerosols and condensate generated from aerosol condensation, preventing condensate residue from remaining in the atomizing device 100. The medium section 220 includes an aerosol generating matrix capable of generating aerosols upon heating. Specifically, in some embodiments, the aerosol generating matrix may be formed from plant materials, such as plant roots, stems, leaves, flowers, buds, and seeds. The functional section 230 includes filter materials such as cotton for cooling, flavor adjustment, component filtration, or airflow adjustment of the aerosols generated in the medium section 220. The hollow section 240 has a hollow structure and is used to discharge the aerosols flowing out of the functional section 230. It is understood that the specific structure of the aerosol generating product 200 is not limited to this and can be configured as needed.

[0045] As described in the background section, the aerosol generated in the medium section 220 flows into the functional section 230 and is easily condensed in the functional section 230 to produce condensate, which affects the utilization rate of the aerosol generation matrix. Moreover, the condensate remains in the atomizing device 100 after being returned and is not easy to clean, thus creating a hygiene hazard.

[0046] Based on the above technical issues, such as Figures 2 to 5 As shown, the atomizer 140 in this application includes a heating element 141, which includes a substrate 1412 and a heating element 1414.

[0047] The substrate 1412 has a hollow cylindrical structure with openings at both ends. An atomizing channel 1412a is formed within the substrate 1412 to accommodate the aerosol generating product 200. The heating element 1414 includes a first heating element 1414a and a second heating element 1414b. The first heating element 1414a is disposed at one end of the substrate 1412, forming a first heating zone on the channel wall of the atomizing channel 1412a. This first heating zone corresponds to the medium section 220 of the aerosol generating product 200 and is used to heat the medium section 220. The second heating element 1414b is disposed at the other end of the substrate 1412, forming a second heating zone on the channel wall of the atomizing channel 1412a. The second heating zone is adjacent to the first heating zone and corresponds to the functional section 230 of the aerosol generating product 200, used to heat the functional section 230.

[0048] In the aforementioned heating element 141, the temperature of different regions of the substrate 1412 can be individually controlled using the first heating element 1414a and the second heating element 1414b, forming a more precise regional temperature field distribution. While the first heating zone uses a higher temperature to heat the medium section 220 of the aerosol generating product 200 to generate aerosol, the second heating zone can use a lower temperature to heat the functional section 230 of the aerosol generating product 200. This prevents the aerosol flowing from the medium section 220 into the functional section 230 from condensing in the functional section 230 and generating condensate, thereby improving the utilization rate of the aerosol generating matrix, reducing the possibility of hygiene hazards caused by condensate backflow, and preventing the functional section 230 from being dry-burned due to excessively high temperature in the second heating zone, thus preventing premature release of key substances and thermal deformation of the functional section.

[0049] Please continue reading. Figures 2 to 5 The atomizing device 100 has a cubic structure. In the following embodiments of this application, the height direction of the outer shell 120 is defined as the first direction (i.e., Figure 2 (Z direction in the image). It is understood that the shape of the atomizing device 100 is not limited to this and can be configured as needed to meet different requirements.

[0050] The outer casing 120 includes a main casing 121 and a bottom cover 123 that are mated to each other in a first direction. The main casing 121 is a hollow casing structure with one end open in the first direction, including a top wall and a side wall extending in the same direction from the edge of the top wall, and the side wall surrounds the top wall circumferentially. The bottom cover 123 includes a bottom wall and a side wall extending in the same direction from the edge of the bottom wall, and the side wall surrounds the bottom wall circumferentially. The side wall of the bottom cover is mated to the end of the side wall of the casing away from the top wall, thereby forming a cavity 120a.

[0051] Furthermore, the top wall of the main housing 121 has an insertion port 121a, and the central axis of the insertion port 121a extends along the first direction. The bottom wall of the bottom cover 123 has an air inlet 123a, the central axis of the air inlet 123a extends along the first direction and is coaxial with the insertion port 121a. Thus, the outer casing 120 has an air inlet 123a and an insertion port 121a spaced apart in the first direction. External air can enter the accommodating cavity 120a through the air inlet 123a, and one end of the aerosol generating article 200 can be inserted into the accommodating cavity 120a through the insertion port 121a.

[0052] The atomizer 140 is located between the air inlet 123a and the insertion port 121a of the housing 120, and includes a heating element 141, a first limiting bracket 143 and a second limiting bracket 145.

[0053] The first limiting bracket 143 is a hollow cylindrical structure with openings at both ends. One end of the first limiting bracket 143 is connected to the bottom wall of the bottom cover and communicates with the air inlet 123a. The central axis of the first limiting bracket 143 extends along the first direction. The second limiting bracket 145 is a hollow cylindrical structure with openings at both ends. One end of the second limiting bracket 145 is connected to the top wall of the top cover and communicates with the insertion port 121a.

[0054] Please combine Figures 3 to 7 As shown, the two ends of the substrate 1412 are respectively inserted into the first limiting bracket 143 and the second limiting bracket 145, and the atomization channel 1412a extends along the first direction.

[0055] Thus, one end of the atomizing channel 1412a is connected to the air inlet 123a through the first limiting bracket 143, and the other end of the atomizing channel 1412a is connected to the insertion port 121a through the second limiting bracket 145. The aerosol generating product 200 can be inserted into the atomizing channel 1412a through the insertion port 121a, and external air flows into the atomizing channel 1412a through the air inlet 123a.

[0056] In some embodiments, the substrate 1412 is formed of a material with low thermal conductivity, thus significantly reducing interference from heat conduction effects. This facilitates individual temperature control of different regions of the substrate 1412 using the first heating element 1414a and the second heating element 1414b. In a preferred embodiment, the thermal conductivity of the substrate 1412 is less than or equal to 3 W / (m·K), effectively preventing heat conduction along the axial direction by the heating element 1414, thereby achieving better regional temperature control. Specifically, in some embodiments, the substrate 1412 may be formed of inorganic materials such as glass or porous materials such as ceramics. It is understood that the material forming the substrate 1412 is not limited to these and can be chosen as needed to meet different requirements.

[0057] The first heating element 1414a and the second heating element 1414b are respectively disposed at both ends of the base 1412 to form a first heating area near the air inlet 123a and a second heating area near the insertion port 121a, respectively. The first heating area covers the medium section 220 of the aerosol generating article 200, and the length of the first heating area in the first direction is equal to the length of the medium section 220 in the first direction. The second heating area at least partially covers the functional section 230 of the aerosol generating article 200, and the length of the second heating area in the first direction is equal to or less than the length of the functional section 230 in the first direction.

[0058] The first heating element 1414a and the second heating element 1414b can generate heat under the action of electrical energy to heat the aerosol generating product 200 located in the atomization channel 1412a. Specifically, in some embodiments, the first heating element 1414a and the second heating element 1414b can be metal films. The metal films can be printed or embedded in the inner surface of the substrate 1412. The metal films can be formed of metal materials such as stainless steel, iron-nickel alloy, and titanium alloy, so that they can generate heat under the action of electrical energy.

[0059] In some embodiments, the first heating element 1414a includes a plurality of first sub-heating elements, which are arranged sequentially at intervals along the extension direction of the atomization channel 1412a. Therefore, more precise temperature control of the first heating zone can be achieved by individually controlling the temperature of each first sub-heating element.

[0060] Furthermore, each first sub-heating element includes multiple first heating segments and multiple second heating segments. At least a portion of the first heating segment extends along the circumferential direction of the substrate 1412, and at least a portion of the second heating segment extends along the axial direction of the substrate 1412. The first heating segments and the second heating segments are alternately connected, so that the first sub-heating element bends and extends, which is beneficial to increasing the heating area of ​​the heating element 141.

[0061] In some embodiments, the second heating element 1414b includes a plurality of second sub-heating elements, which are arranged sequentially at intervals along the extension direction of the atomization channel 1412a. Therefore, more precise temperature control of the second heating zone can be achieved by individually controlling the temperature of each second sub-heating element.

[0062] Furthermore, each second sub-heating element includes multiple third heating segments and multiple fourth heating segments. At least a portion of the third heating segment extends along the circumferential direction of the substrate 1412, and at least a portion of the fourth heating segment extends along the axial direction of the substrate 1412. The third heating segments and the fourth heating segments are alternately connected, which makes the first sub-heating element bend and extend, which is beneficial to increasing the heating area of ​​the heating element 141.

[0063] Thus, by setting a first heating zone for the heating medium section 220 and a second heating zone for the heating function section 230 respectively, a more accurate regional temperature field distribution can be achieved, wherein the temperature of the function section 230 can always be maintained at 60℃-250℃, preferably 120℃-170℃.

[0064] In some embodiments, the atomizer 140 further includes a heat insulation element 147, which covers the outside of the substrate 1412 to prevent heat generated by the heating element 1414 from dissipating outward, reducing heat diffusion efficiency, and further improving the accuracy of temperature control. Specifically, in one embodiment, the heat insulation element 147 is formed of an aerogel material, which has excellent heat insulation properties and therefore can effectively reduce heat diffusion efficiency. It is understood that the material forming the heat insulation element 147 is not limited to this and can be configured as needed to meet different heat insulation requirements.

[0065] like Figure 1 As shown, this application also provides an aerosol generation system, which includes the atomizing device 100 and the aerosol generation product 200. The aerosol generation product 200 is inserted into the heating element 141 of the atomizing device 100. The first heating area of ​​the heating element 141 corresponds to the medium section 220 of the aerosol generation product 200 and heats the medium section 220. The second heating area of ​​the heating element 141 corresponds to the functional section 230 of the aerosol generation product 200 and heats the functional section 230.

[0066] Please combine Figure 2 and Figure 8 , Figure 9 As shown, this application also provides a control method for the atomizer 140 described above. The control element 180 of the atomizing device 100 includes a processor 181 and a memory 183 storing a computer program. When the processor 183 executes the computer program, it implements the steps of the control method described above. The control method specifically includes the following steps:

[0067] Step S110: Determine the number of suctions.

[0068] Specifically, the atomizing device 100 also includes an airflow sensor 190 that is communicatively connected to the control element 180. When the user inhales into the atomizing device 100, the internal pressure difference of the atomizing device 100 changes, thereby triggering the airflow sensor 190. The control element 180 can determine the number of inhalations into the atomizing device 100 based on the working state of the airflow sensor 190.

[0069] Step S120: Adjust the working status of the heating element according to the number of suction cycles.

[0070] Specifically, the control element 180 can adjust the working state of the heating element 141 according to the number of suctions, so that the temperature of the heating element 141 is always maintained within a preset range. On the one hand, it prevents the temperature of the second heating zone from being too high and causing the functional section 230 of the aerosol generating product 200 to dry burn. On the other hand, it prevents the temperature of the second heating zone from being too low and causing condensate to be generated in the functional section 230, thereby improving the utilization rate of the aerosol generating matrix and reducing the energy consumption of the atomizing device 100.

[0071] In some embodiments, the step of adjusting the working state of the heating element 141 according to the number of suctions specifically includes: adjusting the real-time temperature of the second heating zone according to the number of suctions; the real-time temperature is positively correlated with the number of suctions.

[0072] Specifically, since condensate is more likely to form and accumulate as the number of suctions increases, the control element 180 controls the real-time temperature of the second heating zone to remain or increase as the number of suctions increases, thereby reducing the generation and accumulation of condensate, improving the utilization rate of the aerosol generation matrix, and reducing the energy consumption of the atomizing device 100.

[0073] More specifically, in one embodiment, when the number of suctions is 1, the temperature of the second heating zone is 120°C; when the number of suctions is 2, the temperature of the second heating zone is 120°C or 125°C, and so on. As the number of suctions increases, the temperature of the second heating zone can increase by different amounts.

[0074] In other embodiments, the step of adjusting the working state of the heating element 141 according to the number of suctions specifically includes: adjusting the heating duration of the second heating zone according to the number of suctions; the heating duration is positively correlated with the number of suctions.

[0075] Specifically, since condensate is more likely to form and accumulate as the number of suctions increases, the control element 180 controls the heating time of the second heating zone to remain constant or increase as the number of suctions increases, thereby reducing the generation and accumulation of condensate, improving the utilization rate of the aerosol generation matrix, and reducing the energy consumption of the atomizing device 100.

[0076] More specifically, in one embodiment, when the number of suctions is 1, the heating time of the second heating zone is 2 seconds; when the number of suctions is 2, the heating time of the second heating zone is 2 seconds or 3 seconds, and so on. As the number of suctions increases, the heating time of the second heating zone can be increased by different amounts.

[0077] In other embodiments, the step of adjusting the working state of the heating element 141 according to the number of suctions specifically includes: adjusting the heating area of ​​the second heating zone according to the number of suctions; the heating area is positively correlated with the number of suctions.

[0078] Specifically, since condensate is more likely to form and accumulate as the number of pumping increases, when the second heating element 1414b is formed by multiple second sub-heating elements, the control element 180 controls different second sub-heating elements to heat up individually, and controls the heating area of ​​the second heating zone to remain or increase as the number of pumping increases, thereby reducing the generation and accumulation of condensate and improving the utilization rate of the aerosol generation matrix.

[0079] In other embodiments, the temperature of the second heating zone can be maintained at the target temperature throughout the suction process, thereby reducing condensate buildup at all times. Specifically, in one embodiment, the target temperature is 120°C. It is understood that the specific value of the target temperature is not limited to this and can be set as needed to meet different atomization requirements.

[0080] During the suction process, the first heating zone can maintain a high temperature to heat and atomize the aerosol-generating product 200. Specifically, in one embodiment, the temperature of the first heating zone is greater than 150°C. It is understood that the temperature of the first heating zone can be set according to specific needs and is not limited here.

[0081] The aforementioned atomizing device 100, through precise temperature control of the medium section 220 and the functional section 230 of the aerosol-generated product 200, can prevent the functional section 230 from overheating, leading to dry burning, premature release of key substances, and thermal deformation. Conversely, it can prevent the functional section 230 from underheating, resulting in condensation. This improves the utilization rate of the aerosol-generating matrix and achieves greater consistency in taste, while also preventing condensation buildup in the atomizing device 100, which would be difficult to clean. Furthermore, the installation of the heating element 141 does not require significant modifications to the overall structure of the atomizing device 100, exhibiting strong manufacturability and avoiding additional production costs.

[0082] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0083] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A heating element for heating an atomized aerosol generating product, the aerosol generating product comprising a medium section and a functional section arranged sequentially, characterized in that, The heating element includes: The substrate is configured to form atomization channels for containing the aerosol-generated article; A first heating element is disposed at one end of the substrate so that the channel wall of the atomizing channel forms a first heating zone, the first heating zone being used to heat the medium section; A second heating element is disposed at the other end of the substrate to form a second heating zone in the channel wall of the atomization channel. The second heating zone is disposed adjacent to the first heating zone and is used to heat the functional segment.

2. A heat generating element according to claim 1, characterised in that The substrate is formed of a material with low thermal conductivity.

3. The heat generating element according to claim 1, characterized in that The thermal conductivity of the substrate is less than or equal to 3 W / (m·K).

4. The heating element according to claim 1, characterized in that, The first heating element includes a plurality of first sub-heating elements, all of which are arranged along the extension direction of the atomization channel; and / or The second heating element includes a plurality of second sub-heating elements, all of which are arranged along the extension direction of the atomization channel.

5. The heat generating element according to claim 1, characterized in that The first heating element is a heating film; and / or The second heating element is a heating film.

6. An atomizing device for heating and atomizing an aerosol-generating product, the aerosol-generating product comprising a plug section, a medium section, and a functional section connected in sequence, characterized in that, The atomizing device includes a heating element as described in any one of claims 1 to 5.

7. The atomizing device according to claim 6, characterized in that, The atomizing device further includes a first limiting bracket and a second limiting bracket, which are respectively installed at opposite ends of the heating element.

8. The atomizing device according to claim 7, characterized in that, The atomizing device further includes a housing, which has an air inlet and an insertion port spaced apart, the first limiting bracket being positioned at the air inlet and the second limiting bracket being positioned at the insertion port.

9. The atomizing device according to claim 6, characterized in that, The atomizing device also includes a heat insulation component, which covers the outside of the substrate.

10. An aerosol-generating system comprising, The atomizing device as described in any one of claims 6 to 9 is included, and the aerosol generation system further includes an aerosol generation article inserted into the atomizing device, the aerosol generation article including a plug section, a medium section and a functional section connected in sequence.

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