Aerosol-generating device, aerosol-generating product, and heat-generating element

Abstract

The utility model relates to an aerosol generating device, an aerosol generating product and a heating element, and the heating element comprises a heating structure with variable magnetic conductivity, and the heating structure comprises a first end and a second end which are oppositely arranged; the supporting structure is at least partially installed at the second end of the heating structure and fixedly connected with the heating structure. According to the heating element, the heating structure with variable magnetic conductivity is arranged, so that a temperature feedback mechanism based on the material of the heating structure can be constructed, the temperature measuring structure and the temperature measuring process are simplified, and in addition, the supporting structure is at least partially mounted at the second end of the heating structure and is fixedly connected with the heating structure; the supporting structure can be surrounded by the plugging section of the aerosol generating substrate, so that the requirement for the temperature resistance of the plugging section is lowered, the selection range of materials of the plugging section is widened, and meanwhile, the phenomenon that the plugging section generates peculiar smell or miscellaneous gas under the high-temperature condition is effectively reduced; and the whole smoking taste is influenced.

Description

Technical Field

[0001] The utility model relates to the field of atomization, in particular to an aerosol generating device, an aerosol generating product and a heating element. Background Art

[0002] Currently, the heating methods of heat-not-burn aerosol generating devices on the market are mainly resistive heating and electromagnetic heating. Among them, the arrangement of heating elements in electromagnetic heating aerosol generating devices is more flexible than that of resistive heating. Regardless of whether it is needle-type, sheet-type, or circle-type, it is necessary to carry a temperature measuring wire for temperature feedback in order to accurately control the temperature change range of the heating element, which reduces the application flexibility of the electromagnetic heating element.

[0003] For electromagnetic central heating, the method of using central heating heating elements is usually to print a temperature measuring film on the outer surface, and then connect it to the PCB through leads, so that the temperature of the heating element is reflected by the feedback of the temperature measuring film. This method essentially borrows the characteristics of other substances to indirectly reflect the temperature parameters of the heating element, which is mixed with a variety of uncertainties. For example, the heat conduction between the temperature measuring film and the heating element delays the heat exchange. The temperature measuring film itself has heat capacity, and some energy will naturally be consumed during the transfer process. At the same time, the process molding method and protection method of the temperature measuring film itself will limit the manufacturing shape of the heating element. In view of these factors, adding it to the heating element will make the fixation of the heating element more complicated, increasing the structural cost. While the fixed structure also absorbs more energy from the heating element, reducing the efficiency of the heating element.

[0004] In addition, when using a heating element with electromagnetic central heating, usually the entire heating element is inserted into the aerosol generating matrix, which causes problems such as needle sticking, needle breakage, and difficulty in cleaning. This also causes condensation to penetrate into the inside of the aerosol generating device. Over time, the aerosol generating device will have odor and miscellaneous gases, and may even become smelly, rendering the aerosol generating device completely unusable. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide an improved heating element, and further provide an improved aerosol generating product and an aerosol generating device.

[0006] The technical solution adopted by the utility model to solve the technical problem is: construct a heating element, including:

[0007] A heating structure with variable magnetic permeability, comprising a first end and a second end arranged opposite to each other;

[0008] The supporting structure is at least partially installed on the second end of the heating structure and is connected and fixed to the heating structure.

[0009] In some embodiments, the support structure includes a support portion disposed at the second end of the heat generating structure, and a first plug-in portion protruding from one end of the support portion;

[0010] The first plug-in portion is at least partially inserted into the heat generating structure from the second end.

[0011] In some embodiments, the first plug portion extends from the second end toward the first end.

[0012] In some embodiments, the first plug portion has a pointed top structure.

[0013] In some embodiments, the support structure includes a support portion disposed at the second end of the heat generating structure, and a slot is disposed at one end of the support portion connected to the second end;

[0014] The heating structure is provided with a second plug-in portion at the second end that cooperates with the slot.

[0015] In some embodiments, the support structure is tightly matched with the heat generating structure;

[0016] And / or, the heating structure is in the shape of needles, sheets or columns;

[0017] And / or, the supporting structure and the heating structure are coaxially arranged.

[0018] In some embodiments, the heat generating structure comprises a soft magnetic structure;

[0019] And / or, the support structure comprises a low thermal conductivity support structure.

[0020] In some embodiments, the temperature of the heating structure is within a first preset temperature range and a second preset temperature range, and the magnetic permeability of the heating structure and the temperature of the heating structure have a mapping relationship;

[0021] The second preset temperature range is greater than the first preset temperature range and less than the Curie point of the heating structure.

[0022] The utility model also constructs an aerosol generating product, comprising an aerosol generating substrate and the heating element described in the utility model;

[0023] The aerosol generating matrix comprises a medium segment and a blocking segment; the blocking segment is arranged at one end of the medium segment;

[0024] The heating structure of the heating element is at least partially installed in the medium segment from one end of the blocking segment away from the medium segment, and the supporting structure of the heating element is at least partially installed in the blocking segment to cooperate with the blocking segment.

[0025] The utility model also constructs an aerosol generating device, comprising an extractor, a heating element as described in the utility model, and a coil;

[0026] The extractor includes a receiving chamber for receiving at least a portion of the aerosol generating substrate;

[0027] The heating structure of the heating element is at least partially installed in the accommodating cavity;

[0028] The coil is sleeved on the outer periphery of the extractor and cooperates with the heating structure.

[0029] The implementation of the aerosol generating device, aerosol generating product and heating element of the utility model has the following beneficial effects: the heating element can construct a temperature feedback mechanism based on the material of the heating structure itself by setting a heating structure with variable magnetic permeability, which is convenient for simplifying the temperature measurement structure and the temperature measurement process. In addition, the supporting structure is at least partially installed on the second end of the heating structure and connected and fixed to the heating structure, so that the aerosol generating matrix with a blocking section can be adapted for central heating. The supporting structure can be surrounded by the blocking section of the aerosol generating matrix, which reduces the temperature resistance requirements of the blocking section, increases the selection range of the blocking section material, and effectively reduces the generation of odor or impurities by the blocking section under high temperature conditions, affecting the overall smoking taste. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0031] Figure 1 It is a partial structural diagram of the cooperation between the aerosol generating device and the aerosol generating product in the first embodiment of the utility model;

[0032] Figure 2 yes Figure 1 A schematic cross-sectional view of the aerosol generating device and the aerosol generating article shown;

[0033] Figure 3 yes Figure 2 A schematic diagram of the structure of the aerosol generating article shown;

[0034] Figure 4 yes Figure 3 a cross-sectional view of the aerosol-generating article shown;

[0035] Figure 5 yes Figure 2 A schematic diagram of the structure of a heating element of an aerosol generating device;

[0036] Figure 6 yes Figure 5 A cross-sectional view of the heating element structure shown;

[0037] Figure 7 It is a partial structural schematic diagram of an aerosol generating device in the second embodiment of the utility model;

[0038] Figure 8 yes Figure 7 A schematic diagram of the structure of a heating element of an aerosol generating device;

[0039] Fig. 9 yes Figure 7 A cross-sectional view of the heating element shown;

[0040] Fig.10 It is a schematic diagram of the structure of the heating element of the aerosol generating device in the third embodiment of the utility model;

[0041] Fig.11 yes Fig.10 A cross-sectional view of the heating element is shown. DETAILED DESCRIPTION

[0042] In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation methods of the utility model are now described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection", "fixation", "setting" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral body; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. When an element is referred to as being "on" or "under" another element, the element can be "directly" or "indirectly" located on the other element, or there may be one or more intermediate elements. The terms "first", "second", etc. are only for the convenience of describing the technical solution, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", etc. can explicitly or implicitly include one or more of the features. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to the specific circumstances.

[0043] It should be noted that the utility model is aimed at the crux of the problems existing in electromagnetic heating, mainly targeting the heating element itself.

[0044] The basic principle of electromagnetic heating is: the changing current forms a changing magnetic field through the electromagnetic coil, the changing magnetic field acts on the heating element, the magnetic domains inside the heating element body alternate and generate eddy currents, and the magnetic domain vibrations and eddy currents are converted into heat. The actual electromagnetic coil body has certain property parameters, such as inductance, AC resistance, linear resistance, quality factor and other parameters. When the heating element is placed within the influence range of the electromagnetic coil, these parameters, except for linear resistance, will change with the location of the heating element, the size of the heating element, the material, the volume of the affected area, and the temperature of the affected area.

[0045] The magnetic properties of electromagnetic heating sensor materials directly affect the heating temperature rise rate and efficiency of the sensor. For metals with good magnetic properties, the heating element material of the utility model belongs to soft magnetic materials. The important characteristic parameter for describing soft magnetic materials is magnetic permeability. Studies have found that the change in the characteristic parameters of the electromagnetic coil is directly related to the magnetic permeability of the heating element. For general heating elements, the important factor restricting their flexible use and configuration is the need for external temperature measurement to assist. The magnetic permeability of some soft magnetic materials changes with the temperature of the body. In this way, it is possible to establish the conversion of temperature changes into changes in magnetic permeability, and then into changes in the electrical parameters of the coil itself through changes in magnetic permeability. Further, it is possible to establish the conversion of temperature changes into changes in the electrical parameters of the coil itself. It is only necessary to measure the changes in the electrical parameters of the coil, and the temperature value of the heating can be inferred from the measured values, thereby forming a complete temperature feedback link, through which the heating element can be temperature controlled.

[0046] Figure 1 and Figure 2 The first embodiment of the aerosol generating device of the utility model is shown. The aerosol generating device can heat the aerosol generating substrate 100 by heating without burning. In some embodiments, the aerosol generating substrate 100 can be columnar, specifically, it can be cylindrical as a whole.

[0047] like Figure 3 and Figure 4As shown, in this embodiment, the aerosol generating matrix 100 may include a medium segment 101, a blocking segment 102, a filter segment 103, and an outer packaging structure 104. In this embodiment, the medium segment 101 is columnar. Specifically, the medium segment can be a solid material in the form of strips, sheets, particles or one-piece molding made of leaves and / or stems of plants (such as tobacco), and aroma components can be further added to the solid material. The blocking segment 102 is arranged at one end of the medium segment 101 to prevent the medium segment 101 from falling off. In some embodiments, the blocking segment 102 can be annular and can be coaxially arranged with the medium segment 101. The filter segment 103 is arranged at one end of the medium segment 101 away from the blocking segment 102, and is spaced apart from the blocking segment 102. In some embodiments, the filter segment 103 can be columnar, which can be a filter cotton. The outer packaging structure 104 is coated on the outer periphery of the filter section 103, the medium section 101 and the plugging section 102. The outer packaging structure 104 can be made of paper material. A cooling section 105 can be formed between the filter section 103 and the medium section 101.

[0048] For example Figure 2 As shown, in this embodiment, the aerosol generating device may include an extractor 10, a bracket 20, and a heating component 30. The extractor 10 is used to accommodate at least part of the aerosol generating substrate 100. The bracket 20 is sleeved on the outer periphery of the extractor 10 to support the heating component 30. The heating component 30 is at least partially installed in the extractor 10, and can generate heat to heat the medium section 101 of the aerosol generating substrate 100 in the extractor 10 when powered on.

[0049] Specifically, in the present embodiment, the extractor 10 may be a cylindrical structure. The extractor 10 is a hollow structure, and a receiving chamber 11 may be formed inside the extractor 10, and the receiving chamber 11 may be used to receive at least part of the aerosol generating substrate 100. In some embodiments, an opening 12 is provided at one end of the extractor 10, and the opening 12 is communicated with the receiving chamber 11, so that the aerosol generating substrate 100 can be loaded into the receiving chamber 11. In some embodiments, a section of the extractor 10 away from the opening 12 is provided with a supporting wall 13, and the supporting wall 13 is located in the receiving chamber 11 and is used to support the aerosol generating substrate 100. The blocking section 102 of the aerosol generating substrate 100 may be loaded into the supporting wall 13 from the opening 12, so that the medium section 101 of the aerosol generating substrate 100 is located in the receiving chamber 11. In the present embodiment, a perforation 131 may be provided on the supporting wall 13, and the perforation 131 may be located at the central axis of the supporting wall 13.

[0050] In this embodiment, the bracket 20 may be cylindrical, and may be sleeved on the outer circumference of the extractor 10, and may be loosely matched with the outer wall of the extractor 10. In some embodiments, one end of the bracket 20 is provided with an assembly port 21, and the other end is provided with an end wall 22, the assembly port 21 may be used to assemble with the extractor 10, and the end wall 22 may play a role in supporting the extractor 10.

[0051] In this embodiment, the heating assembly 30 may include a heating element 30a and a coil 30b. The heating element 30a may be installed in the bracket 20, which may be placed on the end wall 22 and may penetrate into the accommodating chamber 11 from the through hole 131 of the support wall 13. The heating element 30a may be coaxially arranged with the accommodating chamber 11. The coil 30b may be sleeved on the periphery of the bracket 20 and may be interference fit with the bracket 20, that is, it may be sleeved on the periphery of the extractor 10. The coil 30b may cooperate with the heating element 30a to generate a magnetic field when powered on, thereby causing the heating element 30a to generate heat.

[0052] like Figure 5 and Figure 6 As shown, in this embodiment, the heating element 30a may include a heating structure 31 and a supporting structure 32. The heating structure 31 may be installed in the medium segment 101 at least partially from one end of the blocking segment 102 away from the medium segment 101, and it may cooperate with the coil 30b to generate heat to heat the medium segment 101, so that it generates aerosol. In some embodiments, the heating structure 31 has a first end 31a and a second end 31b, the first end 31a and the second end 31b are arranged opposite to each other, and can be inserted into the medium segment 101 in sequence. The supporting structure 32 is at least partially installed at the second end 31b of the heating structure 31, and can be connected and fixed with the heating structure 31, for example, it can be connected and fixed with the heating structure 31 by plugging. In some embodiments, at least a portion of the support structure 32 can be placed in the blocking section 102, that is, the blocking section 102 can be surrounded by a portion of the periphery of the support structure 32. This reduces the temperature resistance requirements for the blocking section, increases the range of choices for the blocking section material, and effectively reduces the generation of odor or foreign gas caused by the blocking section under high temperature conditions, which affects the overall smoking taste.

[0053] In the present embodiment, the heating structure 31 may be needle-shaped, and the diameter may be 2 mm and the length may be 12 mm. In some other embodiments, the heating structure 31 may not be limited to being needle-shaped, and may be columnar or sheet-shaped. In the present embodiment, the heating structure 31 may include a main body 311 and a pointed top 312, and the main body 311 may be columnar. The pointed top 312 is arranged at one end of the main body 311, which can be easily inserted into the medium section 101 of the aerosol generating matrix 100. The first end 31a may be formed at the tip of the pointed top 312. The second end 31b may be formed at one end of the main body 311 away from the pointed top 312. The second end 31b is provided with a socket 3111, which extends along the axial direction of the main body 311 toward the pointed top 312, and can be used for plug-in matching with the support structure 32.

[0054] In this embodiment, the heating structure 31 is a variable magnetic permeability structure. Specifically, the heating structure 31 can be a soft magnetic structure, that is, it can be made of a soft magnetic material. The Curie point of the soft magnetic material can be less than 800°C. Specifically, in this embodiment, the heating structure 31 can select a soft magnetic material with a Curie point of about 400°C. In some embodiments, the heating structure 31 can be made of 1j85 material. The magnetic permeability of the heating structure 31 made of the soft magnetic material can change with temperature. All soft magnetic materials have a Curie temperature point, and the use range of aerosol generating matrix is ​​within 500℃. Through the study of different soft magnetic materials, it is found that for some materials below the Curie temperature point, the magnetic permeability does not change significantly with temperature, and only when it is close to the Curie temperature point, the change with temperature is obvious; but for some materials below the Curie temperature point, their magnetic permeability gradually decreases with the increase of temperature, and this parameter characteristic change is just what we need for practical applications. Based on this, a temperature feedback mechanism based on the material of the heating element itself is constructed. With this goal, a heating element of soft magnetic functional material is designed to simplify the entire process of temperature measurement, manufacturing, and fixation of the heating element.

[0055] Specifically, the temperature of the heating structure is within the first preset temperature range and the second preset temperature range, and its magnetic permeability has a mapping relationship with its temperature. Among them, the second preset temperature range is greater than the first preset temperature range and less than the Curie point. The material magnetic permeability of the heating structure 31 has a first temperature transition point and a second temperature transition point. The first preset temperature is the first temperature transition point, and the second preset temperature is the second temperature transition point. Before the temperature of the heating structure 31 reaches the first temperature transition point, the magnetic permeability of the heating structure 31 remains substantially unchanged. When the temperature of the heating structure 31 reaches the first temperature transition point, and the temperature of the heating structure 31 shows a continuous upward trend, the magnetic permeability of the heating structure 31 may decrease with increasing temperature, and decrease regularly until the temperature rises to the second temperature transition point. When the temperature of the heating structure 31 reaches the second temperature transition point, the magnetic permeability of the heating structure increases with increasing temperature until the temperature reaches the Curie point of the heating structure 31. When the temperature of the heating structure 31 reaches the Curie point, the magnetic permeability of the heating structure 31 gradually decreases until it decreases to zero, at which time the heating structure 31 completely loses its magnetism. In this embodiment, the first temperature transition point may be 160°C, and the second temperature transition point may be 360°C.

[0056] The heating structure 31 is placed at the inductive center of the coil 30b. After the dielectric section 101 is inserted, a high-frequency current is connected to the coil 30b. As the temperature of the heating structure 31 gradually increases, when the first temperature transition point of 160°C is reached, the magnetic permeability of the heating structure 31 begins to decrease gradually and regularly, thereby causing the electrical parameters of the coil 30b to change. By capturing the electrical parameters through the circuit and performing data processing and matching, the current temperature value of the heating structure 31 can be inferred. By utilizing the alternating current with a certain duty cycle characteristic, the duty cycle can be used to detect the temperature value of the heating structure 31 in real time until the temperature rises to the target temperature of 300°C, which is lower than the second temperature transition point of the material of 360°C. Therefore, it can be ensured that from the first temperature transition point to the target temperature of 300°C, the magnetic permeability of the heating structure 31 changes regularly with the temperature. By detecting this regularity and establishing a relationship with the temperature, each temperature value within this temperature range can be achieved, and the temperature control accuracy can be achieved within 1°C.

[0057] In this embodiment, the support structure 32 can be coaxially arranged with the heating structure 31, and can be tightly matched with the heating structure 31. In this embodiment, the support structure 32 can include a support portion 321 and a first plug portion 322. The support portion 321 can be arranged at the second end 31b of the heating structure 31. In some embodiments, the support portion 321 can be columnar, specifically, it can be cylindrical, and its diameter can be equivalent to the diameter of the heating structure 31. The first plug portion 322 is protrudingly arranged at one end of the support portion 321, and can be integrally formed with the support portion 321, and at least part of it is inserted into the heating structure 31 from the second end 31b. The first plug portion 322 can be inserted into the main body 311 of the heating structure 31 from the insertion hole 3111, and has an interference fit with the main body 311. In some embodiments, the support structure 32 can also include a fixing portion 323, which is arranged at one end of the support portion 321 away from the first plug portion 322, and can be integrally formed with the support portion 321. When the heating element 30 a is assembled in the bracket 20 , the fixing portion 323 may be located on the end wall 22 , and the supporting portion 321 and the heating structure 31 may pass through the through hole 1311 into the accommodating cavity 11 .

[0058] In this embodiment, the support structure 32 can be a low thermal conductivity support structure. Specifically, the support structure 32 can adopt a low thermal conductivity material, such as ceramics, so that the heat of the entire aerosol generating device is relatively concentrated in the heating structure 31, which can more effectively heat the medium segment 101. At the same time, since the support structure 32 has a low temperature and can be surrounded by the blocking segment 102, the temperature resistance requirement of the blocking segment 102 is reduced, and the range of choices for the material of the blocking segment 102 is wider. At the same time, it can effectively reduce the generation of odor or impurities due to the blocking segment 102 under high temperature conditions, affecting the overall smoking taste.

[0059] In some other embodiments, the heating element 30a can be pre-assembled with the aerosol generating substrate 100 to form an aerosol generating article. The heating structure of the heating element 30a can be at least partially installed in the medium segment 101 from one end of the blocking segment 102 away from the medium segment 101. The support structure 32 of the heating element 30a can be at least partially installed in the blocking segment 102 to cooperate with the blocking segment 102.

[0060] Figures 7 to 9 The second embodiment of the aerosol generating device of the utility model is shown, which is different from the first embodiment in that the heating structure 31 of the heating element 30a can be in sheet form, and the first plug-in portion 322 of the support structure 32 can be omitted. The end of the support portion 321 connected to the second end 31b is provided with a slot 3211, and the heating structure 31b is provided with a second plug-in portion 313 matched with the slot 3211 at the second end 31b, and the second plug-in portion 313 can be inserted into the slot 3211 and is matched with the slot 3211 by plugging.

[0061] In this embodiment, the heating structure 31 of the heating element 30a can be made of a pressed thin-film soft magnetic 1j85 material, which can be 12 mm long and 4 mm wide. The first temperature change point of the heating structure 31 can be 150°C, the second temperature change point can be 380°C, and the Curie point can be 400°C. The heating element 30a is placed at the inductive center of the coil 30b and inserted into the dielectric section 101 of the aerosol generating matrix 100. The coil 30b is connected to a high-frequency current. As the temperature of the heating element gradually increases, when it reaches the first temperature transition point of 150 degrees Celsius, the magnetic permeability of the heating element begins to decrease gradually and regularly, thereby causing the electrical parameters of the coil 30b to change. By capturing the electrical parameters through the circuit and performing data processing and matching, the current temperature value of the heating element can be inferred. By utilizing the duty cycle characteristics of the alternating current, the temperature value of the heating element can be detected in real time using the duty cycle until the temperature rises to the target temperature of 300°C, which is lower than the second temperature transition point of the material of 380°C. Therefore, it can be ensured that from the first temperature transition point to the target temperature of 300°C, the magnetic permeability of the heating structure 31 changes regularly with the temperature. By detecting this regularity and establishing a relationship with the temperature, each temperature value within this temperature range can be achieved, and the temperature control accuracy can be achieved within 1°C.

[0062] Fig.10 and Fig.11 The third embodiment of the aerosol generating device of the utility model is shown, which is different from the first embodiment in that the heating structure 31 can be in the shape of a hollow cylinder. The support structure 32 can pass through the second end 31b of the heating structure 31 toward the first end 31a, and the first plug-in portion 322 of the support structure 32 can include a columnar body 3221, a pointed top structure 3222, a first fixing portion 3223 and a second fixing portion 3224. The columnar body 3221 can be inserted into the heating structure 31, and can be cylindrical, and its length can be less than the length of the heating structure 31. The first fixing portion 3223 and the second fixing portion 3224 are arranged at both ends of the columnar body 3221, and their radial dimensions can be greater than the radial dimensions of the columnar body 3221, and are equivalent to the inner diameter of the heating structure 31, and can be interference fit with the heating structure 31. The pointed top structure 3222 is arranged at one end of the first fixing portion 3223 away from the columnar body 3221, and can pass through the first end 31a. In some embodiments, the pointed top structure 3222 may be conical, and in other embodiments, the pointed top structure 3222 may not be limited to a conical shape, and may be a triangular pyramid or other shapes. By arranging the pointed top structure 3222 through the first end 31a, the heating element 30 and the aerosol generating substrate 100 can be easily assembled.

[0063] It can be understood that the above embodiments only express the preferred implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the patent scope of the utility model. It should be pointed out that, for ordinary technicians in this field, without departing from the concept of the utility model, the above-mentioned technical features can be freely combined, and several deformations and improvements can be made, which all belong to the protection scope of the utility model. Therefore, all equivalent changes and modifications made to the scope of the claims of the utility model should belong to the scope covered by the claims of the utility model.

Claims

1. A heating element, characterized in that: include: A heating structure (31) with variable magnetic permeability, comprising a first end (31a) and a second end (31b) arranged opposite to each other; A support structure (32) is at least partially mounted on the second end (31b) of the heating structure (31) and is connected and fixed to the heating structure (31).

2. The heating element according to claim 1, characterized in that: The support structure (32) comprises a support portion (321) arranged at the second end (31b) of the heating structure (31), and a first plug-in portion (322) protruding from one end of the support portion (321); The first plug-in portion (322) is at least partially inserted into the heating structure (31) from the second end (31b).

3. The heating element according to claim 2, characterized in that: The first plug-in portion (322) extends from the second end (31b) toward the first end (31a).

4. The heating element according to claim 2, characterized in that: The first plug-in portion (322) has a pointed top structure (3222), and the pointed top structure (3222) passes through the first end (31a).

5. The heating element according to claim 1, characterized in that: The support structure (32) comprises a support portion (321) arranged at the second end (31b) of the heating structure (31), and a slot (3211) is provided at one end of the support portion (321) connected to the second end (31b); The heating structure (31) is provided with a second plug-in portion (313) at the second end (31b) that cooperates with the slot (3211).

6. The heating element according to claim 1, characterized in that: The supporting structure (32) is tightly matched with the heating structure (31); And / or, the heating structure (31) is in the shape of a needle, a sheet or a column; And / or, the support structure (32) and the heating structure (31) are coaxially arranged.

7. The heating element according to claim 1, characterized in that: The heating structure (31) comprises a soft magnetic structure; And / or, the support structure (32) comprises a low thermal conductivity support structure (32).

8. The heating element according to claim 1, characterized in that: The temperature of the heating structure (31) is within a first preset temperature range and a second preset temperature range, and the magnetic permeability of the heating structure (31) and the temperature of the heating structure have a mapping relationship; The second preset temperature range is greater than the first preset temperature range and less than the Curie point of the heating structure (31).

9. An aerosol generating product, characterized in that It comprises an aerosol generating substrate (100) and a heating element (30a) according to any one of claims 1 to 8; The aerosol generating substrate (100) comprises a medium segment (101) and a blocking segment (102); the blocking segment (102) is arranged at one end of the medium segment (101); The heating structure (31) of the heating element (30a) is at least partially installed in the medium segment (101) from one end of the sealing segment (102) away from the medium segment (101), and the supporting structure (32) of the heating element (30a) is at least partially installed in the sealing segment (102) to cooperate with the sealing segment (102).

10. An aerosol generating device, characterized in that: It comprises an extractor (10), a heating element (30a) according to any one of claims 1 to 8, and a coil (30b); The extractor (10) comprises a receiving chamber for receiving at least a portion of the aerosol generating substrate (100); The heating structure (31) of the heating element (30a) is at least partially installed in the accommodating cavity; The coil (30b) is sleeved on the outer circumference of the extractor (10) and cooperates with the heating structure (31).

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