CN216568393U - Heating element, heating assembly and aerosol generating device - Google Patents

Abstract

The utility model relates to a heating element, a heating assembly and an aerosol generating device. Heating element includes the heat-generating body and set up in the heat-conducting layer of heat-generating body surface whole or local, the heat-conducting layer is used for the equilibrium whole difference in temperature when the heat-generating body generates heat, the heat-generating body can produce the vortex under alternating magnetic field's effect, in order to right with the heat-generating body and/or the aerosol formation substrate that the heat-conducting layer contacted heats the atomizing. The heat conduction layer is arranged on all or part of the surface of the heating body, and the heat conduction layer is used for conducting the heat in the middle of the heating body to the end part of the heating body so as to balance the overall temperature difference when the heating body generates heat, so that the heating element can uniformly heat the aerosol forming substrate, and the smoking taste of the aerosol generating device is improved.

Description

Heating element, heating assembly and aerosol generating device

Technical Field

The utility model belongs to the technical field of electronic atomization, and particularly relates to a heating element, a heating assembly and an aerosol generating device.

Background

At present, in a heating non-combustible device adopting an electromagnetic induction heating mode, a heating element is generally arranged in a containing cavity, when an aerosol-forming substrate is inserted into the containing cavity, the aerosol-forming substrate is in contact with the heating element, and then an alternating magnetic field is generated in the containing cavity through a magnetic induction coil, so that the heating element generates heat by generating eddy current under the action of the alternating magnetic field, and the aerosol-forming substrate is heated and atomized. However, in such an electromagnetic induction heating method, since the density of electromagnetic induction lines of magnetic force at the end of the heating element is low, the generated eddy current is also low, and thus the amount of heat generated at the end of the heating element is also low, so that the heating temperature of the heating element is not uniform (the temperature at the middle position of the heating element is high, and the temperature at the end position is low), and thus the portion of the aerosol-forming substrate in contact with the end portion of the heating element cannot be sufficiently baked, which greatly affects the taste of the user.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art at least to a certain extent and provides a heating element, a heating assembly and an aerosol generating device.

In order to achieve the above object, the present invention provides a heating element, including a heating element and a heat conducting layer disposed on all or part of the surface of the heating element, wherein the heat conducting layer is used for balancing the overall temperature difference when the heating element generates heat, and the heating element can generate eddy current under the action of an alternating magnetic field to heat and atomize an aerosol-forming substrate in contact with the heating element and/or the heat conducting layer.

Optionally, the heating element includes a cylindrical body with two open ends, an inner cavity of the cylindrical body is used for accommodating the aerosol-forming substrate, an outer surface of the aerosol-forming substrate is in contact with an inner wall of the cylindrical body, and the cylindrical body heats the outside of the aerosol-forming substrate under the action of the alternating magnetic field; and/or the heating element comprises a sheet-shaped body or a needle-shaped body, wherein the sheet-shaped body or the needle-shaped body is inserted into the aerosol-forming substrate and heats the inside of the aerosol-forming substrate under the action of the alternating magnetic field.

Optionally, the heat conduction layer covers the inner surface and/or the outer surface of the cylindrical body.

Optionally, the heat conducting layer is arranged on the inner surface and/or the outer surface of the two ends of the cylindrical body.

Optionally, one end of the sheet or the needles is a fixed end and the other end is a tip for facilitating insertion into the interior of the aerosol-forming substrate, the heat conductive layer covering a middle portion of the sheet or the needles disposed at the tip.

Optionally, the sheet or the needle is at least partially received in a lumen of the cartridge, the at least part of the sheet or the needle being inserted into the aerosol-forming substrate when the aerosol-forming substrate is received in the lumen of the cartridge.

Optionally, the heat conductivity coefficient of the heat conducting layer is greater than the heat conductivity coefficient of the heating body; or the heat conduction layer is made of graphene, silver, copper or aluminum.

The utility model also provides a heating component, which comprises the heating element; the heat generating component further includes: a holder formed with an accommodation cavity for accommodating an aerosol-forming substrate, the accommodation cavity extending through both ends of the holder; the magnetic induction coil is wound outside the bracket and used for generating an alternating magnetic field in the accommodating cavity; the heating element is disposed within the receiving cavity for contacting the aerosol-forming substrate inserted into the receiving cavity and generating eddy currents under the action of the alternating magnetic field to heat the aerosol-forming substrate.

Optionally, the heating assembly further includes a sleeve, and the sleeve is sleeved at one end of the support and is used for limiting the magnetic induction coil and/or the heating element on the support.

Optionally, the heating element further comprises a tubular magnetic shield sleeved outside the magnetic induction coil.

Optionally, the heating assembly further comprises a soaking cylinder sleeved outside the magnetic shielding sheet.

The utility model also provides an aerosol generating device which comprises the heating component.

Optionally, the aerosol generating device includes a housing, the heating element is fixedly disposed in the housing, and an insertion hole and a mounting hole, which are coaxially communicated with the accommodating cavity, are respectively formed at opposite ends of the housing, a plug is detachably mounted in the mounting hole, and the inner end of the plug is used for limiting the insertion of the aerosol-forming substrate into the accommodating cavity.

Optionally, an air inlet passage penetrating through two ends of the plug is formed in the plug, and the air inlet passage is respectively communicated with the accommodating cavity and the outside of the shell.

According to the heating element and the aerosol generating device, the heat conducting layer is arranged on the surface of the heating body completely or locally, and the heat conducting layer is used for conducting the heat in the middle of the heating body to the end part of the heating body, so that the overall temperature difference when the heating body generates heat is balanced, the heating element can uniformly heat the aerosol forming substrate, and the smoking taste of the aerosol generating device is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic cross-sectional view of an aerosol generating device according to the present invention;

FIG. 2 is a schematic cross-sectional view of a heating element according to the present invention;

FIG. 3 is a partial cross-sectional view of one embodiment of a heating element of the present invention;

fig. 4 is an enlarged schematic view of a portion a in fig. 3.

Description of the main elements:

100. an aerosol generating device; 200. an aerosol-forming substrate;

10. a housing; 11. a body; 12. a top plate; 121. an insertion hole; 13. a base plate; 131. a sleeve; 132. mounting holes; 14. a plug; 141. an air intake passage;

20. a heat generating component; 21. a support; 211. an accommodating cavity; 212. positioning the convex ring; 213. a rib; 22. a magnetic induction coil; 23. a heating element; 231. a heating element; 232. a heat conductive layer; 24. a magnetic shield sheet; 25. a soaking cylinder; 26. sleeving a sleeve;

30. a control circuit board; 31. a control key;

40. a power supply;

50. a mounting frame; 51. a guide hole; 52. and positioning the step.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be illustrative of the present invention and should not be construed as limiting the present invention, and all other embodiments that can be obtained by one skilled in the art based on the embodiments of the present invention without inventive efforts shall fall within the scope of protection of the present invention.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "circumferential," "radial," and the like are used in the orientations and positional relationships illustrated in the drawings for convenience in describing the utility model and to simplify the description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Referring to fig. 1-2, an aerosol generating device 100 according to an embodiment of the present invention includes a housing 10, a heating element 20, a control circuit board 30, and a power supply 40 disposed in the housing 10; the heating assembly 20 includes a support 21, a magnetic induction coil 22, and a heating element 23.

Specifically, the casing 10 includes a hollow body 11 having upper and lower ends penetrating and communicating, and a top plate 12 and a bottom plate 13 respectively fixedly mounted at the upper and lower ends of the body 11, a mounting bracket 50 is fixed in an inner cavity of the body 11, and the heating element 20, the control circuit board 30 and the power supply 40 are fixedly mounted in the mounting bracket 50 at intervals.

The holder 21 is provided with an accommodating cavity 211 for accommodating the aerosol-forming substrate 200, the accommodating cavity 211 penetrates through two ends of the holder 21, the magnetic induction coil 22 is wound outside the holder 21 and is electrically connected with the power supply 40 and the control circuit board 30 respectively, the side wall of the body 11 is provided with a control key 31 connected with the control circuit board 30, and the control circuit board 30 can control the power supply 40 to supply power to the magnetic induction coil 22 through the control key 31, so that the magnetic induction coil 22 generates an alternating magnetic field in the accommodating cavity 211; the heating element 23 is fixedly arranged in the receiving cavity 211, and when the aerosol-forming substrate 200 is inserted into the receiving cavity 211 through the insertion hole 121, the heating element 23 contacts the aerosol-forming substrate 200 and generates eddy currents under the action of the alternating magnetic field generated by the magnetic induction coil 22 to heat the aerosol-forming substrate 200.

Referring to fig. 3 and 4, the heating element 23 in this embodiment includes a heating element 231 and a heat conducting layer 232 disposed on all or part of the surface of the heating element 231, the heat conducting layer 232 is used to equalize the overall temperature difference when the heating element 231 generates heat, and the heating element 231 can generate eddy current under the action of an alternating magnetic field to heat and atomize the aerosol-forming substrate 200 contacting with the heating element 231 and/or the heat conducting layer 232.

The heating element 231 is a cylindrical body made of ferromagnetic material and having two open ends, the thickness of the cylindrical body is preferably less than 0.4mm, and the thinner the heating element 231 is, the better the heating element 231 is according to the electromagnetic induction skin effect while the structural strength requirement is satisfied; the heat conductivity coefficient of the heat conducting layer 232 is greater than that of the heating element 231, preferably, the heat conducting layer 232 may be made of a material with high heat conductivity, such as graphene, silver, copper or aluminum, and the thickness of the heat conducting layer 232 is preferably within 0.01 to 0.15mm, in this embodiment, the heat conducting layer 232 covers the inner and outer surfaces of the cylindrical body, when the aerosol-forming substrate 200 is inserted into the receiving cavity 211, the outer surface of the aerosol-forming substrate 200 contacts with the heat conducting layer 232 on the inner wall surface of the cylindrical body, so that when the heating element 231 generates heat under the action of the alternating magnetic field, the heat in the middle of the heating element 231 is conducted to the end of the heating element 231 through the heat conducting layer 232, so as to balance the overall temperature difference when the heating element 231 generates heat, so that the heating element 23 can uniformly heat the aerosol-forming substrate 200, thereby enhancing the smoking taste of the aerosol generating device 100.

It should be noted that the heat conducting layer 232 may be simply disposed on the outer surface of the cylindrical body in a covering manner, and when the aerosol-forming substrate 200 is inserted into the receiving cavity 211, the outer surface of the aerosol-forming substrate 200 contacts the inner wall of the cylindrical body, and the heat conducting layer 232 on the outer surface of the cylindrical body can balance the heating temperature difference of the cylindrical body, so that the cylindrical body can uniformly heat the aerosol-forming substrate 200. In other embodiments, the heat conducting layer 232 may also be simply disposed on the inner surface of the cylindrical body in a covering manner, so as to equalize the heating temperature difference of the cylindrical body.

Of course, the heat conducting layer 232 may be disposed on the inner surface and/or the outer surface of the two ends of the cylindrical body, that is, the middle part of the cylindrical body has a part which is not covered by the heat conducting layer 232, wherein, the part of the heating element 231 which is not covered by the heat conducting layer 232 is a high-temperature heating area of the heating element 231 under the action of the alternating magnetic field, the part of the heating element 231 which is covered by the heat conducting layer 232 is a low-temperature heating area of the heating element 231 under the action of the alternating magnetic field, in this structure, when the cylindrical body generates heat under the action of the alternating magnetic field, the heat conduction layers 232 on the two end surfaces of the cylindrical body can absorb the heat in the middle of the cylindrical body, so that the heat of the high temperature heat generation region of the heat-generating body 231 can be rapidly transferred to the low temperature heat generation region of the heat-generating body 231 through the heat conductive layer 232, so that the heat distribution across the heating element 23 in the direction of the central axis is relatively uniform and uniform heating of the aerosol-forming substrate 200 is achieved.

In this embodiment, the heat conducting layer 232 for equalizing the overall temperature difference when the heat generating body 231 generates heat is arranged on the heat generating body 231, so that in actual use, the axial length of the heat generating body 231 can be greater than the axial length of the magnetic induction coil 22, and reduction of material cost and power loss of the magnetic induction coil 22 is facilitated.

In an alternative embodiment, the heat-generating body 231 comprises a sheet or needle (not shown) for insertion into the interior of the aerosol-forming substrate 200 and heating the interior of the aerosol-forming substrate 200 under the influence of an alternating magnetic field. It should be noted that the sheet or needle may be fixed at one end and pointed at the other end, with the pointed end facilitating insertion of the sheet or needle into the aerosol-forming substrate 200, thereby generating an eddy current under the action of the alternating magnetic field to heat the interior of the aerosol-forming substrate 200. In this embodiment, the heat conducting layer 232 may be disposed to cover the surface of the sheet-like body or the needle-like body completely, or may be disposed to cover one side of the sheet-like body separately, so that the heat conducting layer 232 can achieve heat balance when the sheet-like body or the needle-like body generates heat, thereby heating the aerosol-forming substrate 200 uniformly. Of course, the heat conducting layer 232 can also cover the middle portion of the sheet-like body or the needle-like body, so as to conduct part of the heat in the middle portion of the sheet-like body or the needle-like body to the position of the tip end, thereby reducing the overall temperature difference when the whole sheet-like body or the needle-like body generates heat.

Further, the heat-generating body 231 may further include the cylindrical body in the above embodiment, and the sheet-like body or the needle-like body may be at least partially housed in the inner cavity of the cylindrical body, and at least a portion of the sheet-like body or the needle-like body may be inserted into the aerosol-forming substrate 200 when the aerosol-forming substrate 200 is housed in the inner cavity of the cylindrical body. The heat conduction layer 232 is arranged on the whole or part of the surfaces of the cylindrical body and the sheet body/needle body so as to balance the heating temperature of the cylindrical body and the sheet body/needle body; the fixed end of the sheet or needle is located at or below the bottom of the receiving cavity 211, the tip of the sheet or needle is located approximately at the middle of the inner cavity of the cylinder, when the aerosol-forming substrate 200 is inserted into the receiving cavity 211, the outer surface of the aerosol-forming substrate is in contact with the heat-conducting layer 232 on the inner wall of the cylinder or on the inner wall surface, and the cylinder can be used for heating the outside of the aerosol-forming substrate 200; at the same time, the sheet/needle is inserted into the interior of the aerosol-forming substrate 200, the sheet/needle heating the interior of the aerosol-forming substrate 200; in this way, the present embodiment utilizes the combined action of the tubular body and the sheet/needle-shaped body to heat the aerosol-forming substrate 200 at the same time, which can uniformly heat the aerosol-forming substrate 200 and improve the eating quality of the generated aerosol.

In this case, the heating element 231 may be a sheet-like body or a needle-like body, and may not be a cylindrical body, and in this case, the heating element 231 heats the inside of the aerosol-forming substrate 200 through the sheet-like body or the needle-like body. Of course, the heat-generating body 231 may include only a cylindrical body, not a sheet-like body or a needle-like body, and in this case, the heat-generating body 231 heats the outside of the aerosol-forming substrate 200 through the cylindrical body.

In one embodiment, the mounting bracket 50 is formed with a guide hole 51 between the top plate 12 and the support 21, the guide hole 51 having a bore diameter that is adapted to the outer diameter of the aerosol-forming substrate 200 to facilitate guiding the aerosol-forming substrate 200 into the receiving cavity 211 of the support 21 after insertion from the insertion hole 121; and the mounting bracket 50 is further provided with a positioning step 52 facing the direction of the bottom plate 13 at a position below the guide hole 51, a positioning convex ring 212 is convexly formed on the outer wall of the upper end of the support 21, the heating element 20 is installed from the lower end opening of the body 11 when being installed until the positioning convex ring 212 of the support 21 abuts against the positioning step 52, and then the bottom plate 13 is covered and installed at the bottom end opening of the body 11, so that the support 21 is clamped and fixed between the mounting bracket 50 and the bottom plate 13.

In this embodiment, the bottom plate 13 protrudes toward the top plate 12 to form a sleeve 131, the upper end of the sleeve 131 abuts against the lower end of the support 21 to clamp and fix the support 21, a mounting hole 132 coaxially communicated with the receiving cavity 211 is formed in the sleeve 131, a plug 14 is detachably mounted in the mounting hole 132, and the upper end of the plug 14 is used for supporting the bottom end of the aerosol-forming substrate 200 inserted into the receiving cavity 211, so that the depth of the aerosol-forming substrate 200 inserted into the receiving cavity 211 can be limited.

The plug 14 has an air inlet passage 141 penetrating through both ends thereof, and the air inlet passage 141 is respectively communicated with the accommodating cavity 211 and the outside of the housing 10. When a user draws against the outer end of the aerosol-forming substrate 200, air from outside the housing 10 enters the interior of the aerosol-forming substrate 200 through the air inlet passage 141 and is mixed with the aerosol generated by heating by the heat-generating element 23 and is then inhaled by the user from the outer end of the aerosol-forming substrate 200. Of course, in other embodiments, the air inlet passage 141 may be disposed in the inner cavity of the housing 10, i.e., formed by the mounting bracket 50.

In addition, an annular insertion groove is further formed between the outer wall of the upper end of the plug 14 and the inner wall of the mounting hole 132, the heating assembly 20 further includes a sleeve barrel 26, the sleeve barrel 26 is sleeved at one end of the support 21 and is used for limiting the magnetic induction coil 22 and/or the heating element 23 on the support 21, specifically, the upper end of the sleeve barrel 26 is sleeved at the lower end of the support 21 and positions and fixes the lower end of the cylindrical heating element (i.e., a cylindrical body) 231, so that the heating element 231 is fixed in the accommodating cavity 211 of the support 21, wherein the top wall of the sleeve barrel 26 and the bottom of the positioning convex ring 212 of the support 21 can limit the magnetic induction coil 22 to move up and down, and meanwhile, the top wall of the sleeve barrel 26 plays a role in supporting and fixing the bottom of the magnetic induction coil 22; the lower end of the sleeve cylinder 26 is inserted into the annular insertion groove, that is, the sleeve cylinder is sleeved between the outer wall of the plug 14 and the inner wall of the mounting hole 132, so that the bracket 21 and the sleeve cylinder 26 are clamped and fixed between the positioning step 52 and the sleeve 131, and the heating element 20 is fixed in the housing 10.

In the case where the heating element 231 includes a sheet-like member or a needle-like member, the sheet-like member or the needle-like member may be fixed directly or indirectly via a connecting member other than the sleeve 26 in the housing cavity 211 of the holder 21. Likewise, in some other embodiments, the magnetic induction coil 22 may also be fixed to the outer periphery of the support 21 directly or indirectly through a connecting member other than the sleeve 26.

In one embodiment, the heating element 20 further includes a magnetic shielding sheet 24 which is tubular and is sleeved outside the magnetic induction coil 22, and since the control circuit board 30, the heating element 20 and the power supply 40 are sequentially arranged side by side, when the magnetic induction coil 22 is energized to generate an alternating magnetic field in the accommodating cavity 211, the magnetic shielding sheet 24 is used to prevent electromagnetic waves from radiating to the directions of the control circuit board 30 and the power supply 40, so as to prevent the alternating magnetic field generated by the magnetic induction coil 22 from affecting other electronic components in the housing 10.

Furthermore, the heating assembly 20 further comprises a soaking cylinder 25 sleeved outside the magnetism-isolating sheet 24, that is, the magnetism-isolating sheet 24 is attached to the inner surface of the soaking cylinder 25, in practical application, the soaking cylinder 25 is fixedly connected to the mounting frame 50 or the bracket 21, so that the magnetism-isolating sheet 24 is just positioned outside the magnetic induction coil 22 and plays a role in dissipating heat of the magnetism-isolating sheet 24; specifically, a plurality of convex ribs 213 are uniformly distributed along the circumference below the positioning convex ring 212 of the bracket 21, the upper end of the soaking cylinder 25 is sleeved on the outer walls of the convex ribs 213, and the lower end of the soaking cylinder 25 is abutted against the top wall of the sleeving cylinder 26, so that the soaking cylinder 25 is sleeved and fixed outside the bracket 21; the magnetic shielding sheet 24 is preferably attached to the inner wall of the soaking barrel 25, so that the magnetic shielding sheet 24 and the magnetic induction coil 22 are spaced apart.

A temperature sensor is further provided outside the cylindrical heating element 231, and the temperature sensor is used to detect the temperature of the cylindrical heating element 231 and feed back the temperature to the control circuit board 30, so that the control circuit board 30 modulates the output power to the magnetic induction coil 22 as required.

In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

In view of the above description of the technical solutions provided by the present invention, those skilled in the art will recognize that there may be variations in the technical solutions and the application ranges according to the concepts of the embodiments of the present invention, and in summary, the content of the present specification should not be construed as limiting the present invention.

Claims (14)

1. The utility model provides a heating element, its characterized in that, including the heat-generating body and set up in the heat-conducting layer of heat-generating body surface whole or local, the heat-conducting layer is used for the equilibrium whole difference in temperature when the heat-generating body generates heat, the heat-generating body can produce the vortex under alternating magnetic field's effect, with to with the heat-generating body and/or the aerosol formation substrate that the heat-conducting layer contacted heats the atomizing.

2. A heating element according to claim 1, wherein the heating element includes a cylindrical body having both ends open, an inner cavity of the cylindrical body is configured to accommodate the aerosol-forming substrate, an outer surface of the aerosol-forming substrate is in contact with an inner wall of the cylindrical body, and the cylindrical body heats an outside of the aerosol-forming substrate under the action of the alternating magnetic field;

and/or the heating element comprises a sheet-shaped body or a needle-shaped body, wherein the sheet-shaped body or the needle-shaped body is inserted into the aerosol-forming substrate and heats the inside of the aerosol-forming substrate under the action of the alternating magnetic field.

3. The heating element according to claim 2, wherein the heat conductive layer covers an inner surface and/or an outer surface of the cylindrical body.

4. The heating element according to claim 2, wherein the heat conductive layer is provided on an inner surface and/or an outer surface of both ends of the cylindrical body.

5. A heating element as claimed in claim 2 wherein one end of the sheet or needles is a fixed end and the other end is a pointed end for facilitating insertion into the interior of the aerosol-forming substrate, the heat conductive layer overlying the pointed end and extending to the middle of the sheet or needles.

6. A heating element as claimed in claim 2, wherein the sheet or needles are at least partially received in an internal cavity of the cartridge, the at least part of the sheet or needles being inserted into the aerosol-forming substrate when the aerosol-forming substrate is received in the internal cavity of the cartridge.

7. The heating element according to any one of claims 1 to 6, wherein a thermal conductivity of the heat conductive layer is larger than a thermal conductivity of the heat generating body; or the heat conduction layer is made of graphene, silver, copper or aluminum.

8. A heat generating component, characterized in that the heat generating component comprises the heat generating element according to any one of claims 1 to 7; the heat generating component further includes:

a holder formed with an accommodation cavity for accommodating an aerosol-forming substrate, the accommodation cavity extending through both ends of the holder;

the magnetic induction coil is wound outside the bracket and used for generating an alternating magnetic field in the accommodating cavity;

the heating element is disposed within the receiving cavity for contacting the aerosol-forming substrate inserted into the receiving cavity and generating eddy currents under the action of the alternating magnetic field to heat the aerosol-forming substrate.

9. The heating assembly of claim 8, further comprising a sleeve, wherein the sleeve is sleeved on one end of the support to limit the magnetic induction coil and/or the heating element on the support.

10. The heating element as claimed in claim 8, wherein the heating element further comprises a magnetic shielding sheet having a tubular shape and disposed around the magnetic induction coil.

11. The heating assembly as claimed in claim 10, further comprising a soaking cylinder sleeved outside the magnetic shielding sheet.

12. An aerosol generating device comprising a heat generating component as claimed in any one of claims 8 to 11.

13. The aerosol generating device of claim 12, wherein the aerosol generating device comprises a housing, the heat generating assembly is fixedly disposed in the housing, and opposite ends of the housing are respectively provided with an insertion hole and a mounting hole coaxially communicated with the receiving cavity, a plug is detachably mounted in the mounting hole, and an inner end of the plug is used for limiting a depth of the aerosol-forming substrate inserted into the receiving cavity.

14. The aerosol generating device of claim 13, wherein the plug has an air inlet channel formed therein through both ends thereof, the air inlet channel being in communication with the receiving cavity and the exterior of the housing, respectively.

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