Heating device and aerosol-generating device

Abstract

The utility model relates to the field of electronic atomization, in particular to a heating device and an aerosol generating device.The heating device comprises a containing part and a heating part, the containing part is provided with an assembling channel and a containing channel, the containing channel is used for containing an aerosol matrix, and the heating part is provided with a core column part arranged in the assembling channel and used for limiting the aerosol matrix in the containing channel; the needling part protrudes out of one side, facing the accommodating channel, of the core column part and is used for being inserted into the aerosol matrix; and the airflow channel comprises a first channel and a second channel. An integrated heating piece is arranged on a heating device, the heating piece comprises a core column part and a needling part, the core column part bears an aerosol substrate from the bottom, the needling part is inserted into the aerosol substrate, and the core column part and the needling part jointly heat the aerosol substrate in a hot air flow discharging mode. The heating uniformity and the heating efficiency of the aerosol substrate are effectively improved, the continuity of aerosol generation is further enhanced, and the user experience is improved.

Description

Technical Field

[0001] The present application relates to the technical field of electronic atomization, and particularly relates to a heating device and an aerosol generating device. Background Art

[0002] In current heat-not-burn devices, generally, an aerosol matrix is heated to generate an aerosol that is discharged after being mixed with air. Among them, bottom hot air flow heating is a conventional method for heating the aerosol matrix in heat-not-burn devices. It inputs hot air at the bottom of the aerosol matrix to bake the aerosol matrix at a high temperature, thereby generating an aerosol. However, since the heat source of the bottom hot air flow is concentrated at the bottom of the aerosol matrix, the aerosol matrix is unevenly heated, and the top of the aerosol matrix is not baked sufficiently, which results in poor continuity of the generated aerosol and affects the user experience. Summary of the Utility Model

[0003] The present application provides a heat exchange core, a heating device, and an aerosol generating device, aiming to solve the problems of uneven heating of the aerosol matrix, insufficient baking of the top, and poor continuity of the generated aerosol in the related art.

[0004] According to one aspect of the present application, in one embodiment, a heating device is provided, including a housing member and a heating member of an integrated structure. The housing member has an assembly channel and a receiving channel that communicate with each other in the axial direction of the housing member. The receiving channel is used to receive the aerosol matrix. The heating member has a core column portion, a needle-piercing portion, and an air flow channel. Among them: the core column portion is arranged in the assembly channel and is used to confine the aerosol matrix in the receiving channel; the needle-piercing portion protrudes from one side of the core column portion facing the receiving channel; the needle-piercing portion extends into the receiving channel and is arranged to insert into the interior of the aerosol matrix; the air flow channel is used to guide air flow through the heating member to be heated by the heating member to form a hot air flow; the air flow channel includes a first channel and a second channel. The first channel penetrates through the core column portion, and the second channel penetrates through the core column portion and the needle-piercing portion.

[0005] In one embodiment, the number of the first channels is set to be multiple, and the multiple first channels are arranged at intervals around the geometric center line of the core column portion in the axial direction. The geometric center line of the needle-piercing portion in the axial direction coincides with the geometric center line of the core column portion in the axial direction.

[0006] In one embodiment, the puncture portion comprises a puncture section and a column tube section, wherein one end of the column tube section in the axial direction is fixed to the core column portion, the puncture section is formed at the other end of the column tube section in the axial direction, and a radial dimension of the puncture section in the receiving member gradually decreases from one end of the puncture section close to the column tube section toward one end away from the column tube section.

[0007] In one embodiment, the second channel has an air inlet and an air outlet, the air inlet is arranged on the end surface of the core column portion away from the puncture portion in the axial direction, and the air outlet is arranged through the side wall of the column tube section.

[0008] In one embodiment, a portion of the puncture section extends out of the receiving member arrangement from an end of the receiving channel away from the assembly channel.

[0009] In one embodiment, the core column portion has an air inlet end face and an air outlet end face opposite to each other in the axial direction, the first channel is arranged through the air inlet end face and the air outlet end face of the core column portion, and the air outlet end face is protrudingly provided with a first limiting structure; the first limiting structure is used to support the aerosol matrix so that the aerosol matrix and the first channel maintain a preset gap in the axial direction.

[0010] In one embodiment, a second limiting structure is further provided inside the receiving piece, and the second limiting structure divides the internal space of the receiving piece into the assembly channel and the receiving channel. The second limiting structure is used to support the core column part to limit the core column part within the assembly channel.

[0011] In one embodiment, a heating element is further included for generating heat; the heating element is arranged in the assembly channel, and the heating element is wrapped around the core column portion along the circumference of the receiving element.

[0012] In one embodiment, in the assembly channel, a glue-containing space distributed around the core column portion is formed between the core column portion and the receiving member, and the glue-containing space is filled with sealant, and the sealant is used to fix the heating element, the receiving member and the core column portion.

[0013] According to one aspect of the present application, an aerosol generating device is provided in an embodiment, comprising a body shell and the above-mentioned heating device, wherein the body shell has an air inlet channel and an air outlet channel, and the heating device is connected and arranged between the air inlet channel and the air outlet channel; wherein the receiving channel is connected to the air outlet channel.

[0014] According to the heating device and the aerosol generating device of the above embodiments, by providing an integrated heating element on the heating device, the heating element includes a core column part and a needle punching part. The core column part bears the aerosol matrix from the bottom, the needle punching part is inserted into the aerosol matrix, and the core column part and the needle punching part jointly heat the aerosol matrix by discharging hot air flow, effectively improving the heating uniformity and heating efficiency of the aerosol matrix, thereby enhancing the continuity of aerosol generation and improving the user experience. Description of the Drawings

[0015] Figure 1 Schematic structural diagram of the heating device in the embodiment of the present application.

[0016] Figure 2 Explosion schematic diagram of the heating device in the embodiment of the present application.

[0017] Figure 3 Explosion cross-sectional schematic diagram of the heating device in the embodiment of the present application.

[0018] Figure 4 Cross-sectional schematic diagram of the heating device in the embodiment of the present application.

[0019] Figure 5 Schematic structural diagram of the heating element in the embodiment of the present application.

[0020] Figure 6 Schematic structural diagram of the aerosol generating device in the embodiment of the present application.

[0021] Figure 7 Cross-sectional schematic diagram of the aerosol generating device in the embodiment of the present application.

[0022] Description of the reference numerals:

[0023] 1 - Heating device; 2 - Receiving member; 21 - Assembly channel; 22 - Receiving channel; 23 - Second limiting structure; 3 - Heating element; 31 - Core column part; 32 - Needle punching part; 321 - Needle punching section; 322 - Column tube section; 33 - Air flow channel; 34 - First channel; 35 - Second channel; 351 - Air inlet; 352 - Air outlet; 36 - First limiting structure; 4 - Heating element; 5 - Sealant; 6 - Body housing; 7 - Power supply assembly. Detailed Embodiments

[0024] The present application will be further described in detail below in conjunction with the specific embodiments and the accompanying drawings. Similar elements in different embodiments are labeled with related similar reference numerals. In the following embodiments, many detailed descriptions are provided to enable a better understanding of the present application. However, those skilled in the art can easily recognize that some of the features can be omitted in different situations, or can be replaced by other elements, materials, or methods. In some cases, some operations related to the present application are not shown or described in the specification to avoid overwhelming the core part of the present application with excessive descriptions. For those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations based on the descriptions in the specification and the general technical knowledge in the art.

[0025] In addition, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments, and the operation steps involved in each embodiment can also be reordered or adjusted in a manner that is obvious to those skilled in the art. Therefore, the specification and the drawings are only for clearly describing a certain embodiment and do not mean that they are essential components and / or sequences.

[0026] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the described objects and do not have any sequential or technical meaning. The terms "connection" and "coupling" used in the present application, unless otherwise specified, both include direct and indirect connection (coupling).

[0027] An embodiment of the present application provides a heating device, which can be applied to an aerosol generating device to heat an aerosol substrate; please refer to Figure 1 , the heating device 1 in the embodiment of the present application includes a housing 2 and a heating element 3 of an integrated structure.

[0028] Among them, please refer to Figures 2 - 4 , the housing 2 has an assembly channel 21 and a receiving channel 22 that communicate with each other in the axial direction of the housing 2. The receiving channel 22 is used to receive the aerosol substrate. The heating element 3 has a core column portion 31, a needle portion 32, and an air flow channel 33; wherein: the core column portion 31 is arranged in the assembly channel 21 to confine the aerosol substrate in the receiving channel 22; the needle portion 32 protrudes from one side of the core column portion 31 facing the receiving channel 22; the needle portion 32 extends into the receiving channel 22 and is arranged to insert into the interior of the aerosol substrate; the air flow channel 33 is used to guide air flow through the heating element 3 to be heated by the heating element 3 to form a hot air flow; the air flow channel 33 includes a first channel 34 and a second channel 35. The first channel 34 penetrates through the core column portion 31, and the second channel 35 penetrates through the core column portion 31 and the needle portion 32.

[0029] In the embodiments of the present application, the receiving member 2 has an assembly channel 21 and a receiving channel 22 that communicate with each other in the axial direction of the receiving member 2. The receiving channel 22 is used to receive the aerosol matrix, and the assembly channel 21 is used to receive the heating member 3. The receiving member 2 in the embodiments of the present application has a structure with openings at both ends in the axial direction. One end opening communicates with the receiving channel 22 and is used to accommodate the aerosol matrix; the other end opening communicates with the assembly channel 21 and is used to accommodate the heating member 3. In other words, during use, the receiving member 2 is arranged circumferentially around the aerosol matrix, and can limit the aerosol matrix laterally, and at the same time, it matches the outer shape and size of the aerosol matrix. Exemplarily, the cross-sectional shape of the aerosol matrix is circular, and the cross-section of the receiving channel 22 can be circular that matches the size and shape of the aerosol matrix. Of course, the cross-sectional shape of the aerosol matrix can also be other shapes, and there is no specific limitation on the cross-sectional shape of the receiving channel 22, as long as the aerosol matrix can be accommodated in the receiving channel 22.

[0030] The assembly channel 21 is used to install the heating member 3. The purpose of setting the heating member 3 is to provide a hot air flow for the aerosol matrix to heat the aerosol matrix. In order to provide a hot air flow, the heating member 3 itself can be heated, so that the air flow guided by the air flow channel 33 inside the heating member 3 can be heated to form a hot air flow. The heating member 3 is an integral structure with a core column part 31 and a needle punching part 32, that is, the core column part 31 and the needle punching part 32 are integrally formed. The core column part 31 is arranged in the assembly channel 21, and due to the setting of the core column part 31, the aerosol matrix is physically blocked, preventing the aerosol matrix from entering the assembly channel 21 and restricting the aerosol matrix in the receiving channel 22. Different from the core column part 31, the needle punching part 32 is arranged protruding from one side of the core column part 31 towards the receiving channel 22, that is, the needle punching part 32 penetrates into the receiving channel 22 from the position where the core column part 31 is located. Since the receiving channel 22 is used to accommodate the aerosol matrix, after the receiving channel 22 accommodates the aerosol matrix, the needle punching part 32 can be inserted into the interior of the aerosol matrix, which can play a role in assisting in fixing the aerosol matrix and reducing the probability of the aerosol matrix falling off from the receiving channel 22.

[0031] In order to heat the aerosol matrix, especially to heat the aerosol matrix based on the hot air flow, the air flow channel 33 is formed within the core column part 31 and the needle punching part 32. The air flow channel 33 is a channel for guiding the air flow. In the embodiments of the present application, the air flow flowing through the air flow channel 33 can be heated by the heating member 3 to form a hot air flow, and when the hot air flow enters the receiving channel 22, it can heat the aerosol matrix in the receiving channel 22.

[0032] In order to improve the uniformity of heating the aerosol matrix by the hot air flow and avoid the concentration of heat only at the bottom of the aerosol matrix, the air flow channels 33 in the embodiments of the present application include two types, namely the first channel 34 and the second channel 35. The first channel 34 penetrates the core column part 31, and the second channel 35 not only penetrates the core column part 31 but also penetrates the acupuncture part 32. Therefore, the hot air flow can pass through the first channel 34, enter the bottom of the aerosol matrix, and heat the aerosol matrix from the bottom of the aerosol matrix; alternatively, the hot air flow can also pass through the second channel 35 and directly enter the inside of the aerosol matrix to heat the aerosol matrix from the inside of the aerosol matrix. In other words, in the embodiments of the present application, the hot air flow is heated by the heating element 3 based on heat generation, and the aerosol matrix has at least two heating means, namely the bottom hot air flow and the central hot air flow. When both exist, the concentration of heat at the bottom of the aerosol matrix is effectively avoided, and since the number of heated parts increases, the utilization efficiency of heat is correspondingly improved, the generation rate of the aerosol is increased, and thus the continuity of the generated aerosol is enhanced.

[0033] In some alternative embodiments, the first channel 34 is used to form a bottom hot air flow to heat from the bottom of the aerosol matrix; in order to improve the uniformity of heating by the bottom hot air flow, the number of the first channels 34 can be set to be multiple, and the multiple first channels 34 are arranged at intervals around the geometric center line of the core column part 31 in the axial direction; wherein, the geometric center line of the acupuncture part 32 in the axial direction can coincide with the geometric center line of the core column part 31 in the axial direction. That is to say, the acupuncture part 32 can be arranged at the central position of the core column part 31, which makes the acupuncture part 32 also at the central position of the aerosol matrix when inserted into the inside of the aerosol matrix, so that the heating of the inside of the aerosol matrix is uniform in all directions. In addition, the geometric center line of the acupuncture part 32 in the axial direction may not coincide with the geometric center line of the core column part 31 in the axial direction, that is, the acupuncture part 32 can be arranged eccentrically with respect to the core column part 31; or, there can be at least two acupuncture parts 32, and each acupuncture part 32 is arranged on the core column part 31 to be inserted into the aerosol matrix. When there are multiple acupuncture parts 32, the sizes of the respective acupuncture parts 32 can be the same, or the acupuncture part 32 located in the central area can be set to be longer.

[0034] In some alternative embodiments, in order for the acupuncture part 32 to be inserted into the inside of the aerosol matrix, please refer to Figure 5, the needle-piercing part 32 may have a needle-piercing section 321 and a column tube section 322. One end of the column tube section 322 in the axial direction is fixed to the core column part 31, and the needle-piercing section 321 is formed at the other end of the column tube section 322 in the axial direction. Moreover, the dimension of the needle-piercing section 321 in the radial direction of the receiving member 2 gradually decreases from the end close to the column tube section 322 towards the end away from the column tube section 322. By setting the dimension of the needle-piercing section 321 in the radial direction to decrease along the direction away from the column tube section 322, a relatively sharp structure is formed at the end of the needle-piercing section 321, which can facilitate the insertion of the needle-piercing section 321 and even the column tube section 322 into the aerosol matrix.

[0035] In some alternative embodiments, in order for the needle-piercing part 32 to output hot air flow to heat the aerosol matrix, the second channel 35 has an air inlet 351 and an air outlet 352. The air inlet 351 is arranged on the end face of the core column part 31 at the end away from the needle-piercing part 32 in the axial direction, and the air outlet 352 is arranged through the side wall of the column tube section 322. That is to say, in the process of air flow, the air flow enters from the air inlet 351 arranged on the end face of the core column part 31, successively passes through the core column part 31 and the column tube section 322, and is discharged from the air outlet 352 arranged on the column tube section 322, so as to realize the heating operation of the aerosol matrix. Since the needle-piercing part 32 is inserted into the aerosol matrix through the needle-piercing section 321, in order to prevent the aerosol matrix from entering the inside of the needle-piercing part 32 from the air outlet 352 during the insertion process, the air outlet 352 can be arranged on the column tube section 322.

[0036] In addition, there may be multiple air outlets 352 on the column tube section 322, and each air outlet 352 can be symmetrically arranged around the geometric center line of the column tube section 322 in the axial direction to ensure that the hot air flow can be evenly discharged from each air outlet 352. Each air outlet 352 can be arranged at the same height of the column tube section 322 in the axial direction, or can be arranged at different heights of the column tube section 322 in the axial direction. Of course, in the embodiments of the present application, the air outlet 352 can also include only one. Exemplarily, the shape of the air outlet 352 is circular, the number of the air outlets 352 is 2, and the diameter size range is 0.5 mm - 1.5 mm, such as 0.8 mm; the wall thickness of the corresponding column tube section 322 is 0.1 mm - 0.5 mm, such as 0.2 mm. The thinner the wall of the column tube section 322, the higher the heating efficiency of the column tube section 322.

[0037] In some alternative embodiments, in order to better limit the aerosol matrix, fix the aerosol matrix in the receiving channel 22, and enhance the insertion effect, a part of the needle-piercing section 321 extends out of the receiving member 2 from the end of the receiving channel 22 away from the assembly channel 21. That is to say, the needle-piercing section 321 can partially extend out of the receiving member 2 to facilitate the insertion into the aerosol matrix.

[0038] Exemplarily, in the embodiments of the present application, the axial length range of the needle-piercing portion 32 of the heating member 3 is 5 mm - 10 mm, for example, it can be 6.8 mm. Correspondingly, the axial length range of the core column portion 31 is 3 mm - 8 mm, for example, it can be 5 mm. In this way, compared with the size of the needle-piercing portion 32, the core column portion 31 has sufficient height, and during the hot air flow heating process, a heating effect can be achieved with the bottom hot air flow discharged from the first channel 34 as the main part and the central hot air flow discharged from the second channel 35 as the auxiliary part. For a better bottom hot air flow heating effect, the smaller the diameter of the first channel 34 and the more the number of the first channels 34, the higher the heating efficiency of the hot air flow. In the embodiments of the present application, the diameter range of the first channel 34 is 0.1 - 0.8 mm, for example, it can be 0.5 mm.

[0039] In order to allow the hot air flow to heat the aerosol matrix, in the embodiments of the present application, the heating member 3 is used to heat the air flow to form a hot air flow. In order to avoid the hot air flow being blocked by the aerosol matrix, in some alternative embodiments, the core column portion 31 has an air inlet end face and an air outlet end face that are axially opposite to each other. The first channel 34 penetrates through the air inlet end face and the air outlet end face of the core column portion 31, and a first limiting structure 36 is convexly provided on the air outlet end face. The first limiting structure 36 is used to abut against the aerosol matrix so that the aerosol matrix and the first channel 34 maintain a preset gap axially. Since the first limiting structure 36 protrudes from the air outlet end face, during use, the aerosol matrix will be placed in the accommodation space, and its bottom will be supported by the first limiting structure 36. Therefore, the outlet of the first channel 34 provided in the core column portion 31 will not be blocked by the aerosol matrix, and the hot air flow can normally pass through the aerosol matrix and heat the aerosol matrix after flowing out of the first channel 34. At the same time, in order to achieve a hot air flow at a specified temperature, the actual temperature of the heating member 3 is often higher. Therefore, if the heating member 3 directly contacts the aerosol matrix, it may cause the aerosol matrix to be burned, which is not conducive to health and will also reduce the user experience. Therefore, by providing the first limiting structure 36, it is possible to avoid blocking the first channel 34 and reduce the direct contact between the high-temperature heating member 3 and the aerosol matrix, thereby improving the heating uniformity of the aerosol matrix.

[0040] The specific form of the first limiting structure 36 can be a flange surrounding the air outlet end face. The groove formed by the surrounding of the flange is smaller than the size of the aerosol matrix in the corresponding direction. Therefore, the aerosol matrix will not enter the groove.

[0041] In some alternative embodiments, in order to accommodate the heating member 3 and at the same time restrict the heating member 3 from entering the receiving channel 22 through the assembly channel 21, a second limiting structure 23 may further be provided inside the receiving member 2. The second limiting structure 23 divides the internal space of the receiving member 2 into an assembly channel 21 and a receiving channel 22. The second limiting structure 23 is used to abut against the core column portion 31 to restrict the core column portion 31 within the assembly channel 21. By providing the second limiting structure 23, the internal space of the receiving member 2 is divided into two parts, namely the assembly channel 21 and the receiving channel 22. Moreover, the second limiting structure 23 abuts against the core column portion 31 in the heating member 3 to limit the core column portion 31 and prevent it from entering the receiving channel 22. The specific form of the second limiting structure 23 may be a flange circumferentially surrounding the inner wall of the receiving member 2, and the second limiting structure 23 may further cooperate with the first limiting structure 36 to jointly carry the aerosol matrix.

[0042] In some alternative embodiments, in order to enable the heating member 3 to heat the air flow to form a hot air flow, a heating element 4 may further be included for generating heat. The heating element 4 is arranged within the assembly channel 21 and circumferentially wraps around the core column portion 31 along the receiving member 2. The heating element 4 is used to generate heat, and then conducts the heat to the heating member 3 through heat transfer. Then, the heating member 3 heats the air flow in the first channel 34 and the second channel 35. The specific form of the heating element 4 may be a mesh-like light-emitting structure circumferentially surrounding the core column portion 31, which may generate heat through resistive heating or electromagnetic heating.

[0043] In addition, the heating element 4 may also be inserted inside the heating member 3 to generate heat and conduct it to the heating member 3.

[0044] In some alternative embodiments, in addition to generating heat by the heating element 4 and then heating the heating member 3, the heating member 3 itself may also serve as a heat source. The heating member 3 may be made of electromagnetic material or resistive material, so that the heating member 3 can directly generate heat.

[0045] In some alternative embodiments, within the assembly channel 21, a glue-containing space is formed between the core column portion 31 and the housing member 2, which is distributed around the core column portion 31. The glue-containing space is filled with a sealant 5, which is used to fix the heating element 4, the housing member 2, and the core column portion 31. The glue-containing space is for filling the sealant 5, and the sealant 5 can fix and seal the heating element 4, the housing member 2, and the heating element 3 to each other, so that the heat generated by the heating element 4 escapes outward as little as possible and heats the heating element 3 as much as possible, thereby improving the heating efficiency of the heating element 3; moreover, the sealant 5 can also conduct less heat to the housing member 2. In this way, when the housing member 2 accommodates the aerosol matrix, it can assist in heating the aerosol matrix circumferentially, improving the heating efficiency. For good heat conduction effect, the material of the heating element 3 can be a highly heat-conductive metal material such as hard-anodized aluminum alloy, and the material of the housing member 2 can also be a highly heat-conductive metal material such as aluminum alloy. The sealant can be any material with certain heat insulation and sealing properties, such as ceramic glue, resin glue, glass glue, etc.

[0046] Based on the components of the heating device 1 in the embodiments of the present application, during assembly, the heating element 4 can be circumferentially wrapped outside the core column portion 31 of the heating element 3, and then the two are simultaneously inserted into the assembly channel 21 of the housing member 2. Finally, the glue-containing space between the core column portion 31 and the housing member 2 is filled with the sealant 5 to fix the heating element 4, the heating element 3, and the housing member 2.

[0047] The embodiments of the present application provide a heating device 1. By providing an integrated heating element 3, the heating element 3 includes a core column portion 31 and a needle-piercing portion 32. The core column portion 31 bears the aerosol matrix from the bottom, and the needle-piercing portion 32 is inserted into the aerosol matrix. The core column portion 31 and the needle-piercing portion 32 jointly heat the aerosol matrix by discharging hot airflows respectively, effectively improving the heating uniformity and heating efficiency of the aerosol matrix, thereby enhancing the continuity of aerosol generation and improving the user experience.

[0048] The embodiments of the present application also provide an aerosol generating device. Please refer to Figure 6 and Figure 7 , the aerosol generating device includes a body housing 6 and the heating device 1 in the above embodiments. The body housing 6 has an air inlet channel and an air outlet channel, and the heating device 1 is communicatively disposed between the air inlet channel and the air outlet channel; wherein, the receiving channel 22 is communicatively connected to the air outlet channel. Since the receiving channel 22 is communicatively connected to the air outlet channel, the aerosol generated by heating the aerosol matrix located in the receiving channel 22 can be discharged outward through the air outlet channel.

[0049] In general, the aerosol generating device in the embodiment of the present application further includes a power supply assembly 7, wherein the power supply assembly 7 is used to supply power to the heating device 1 so that the heating device 1 can heat the aerosol substrate. Among them, according to different types of aerosol generating devices, the power supply assembly 7 can be non-detachably connected to the body housing 6, and thus the entire aerosol generating device is a disposable product; alternatively, the power supply assembly 7 can be detachably connected to the body housing 6, so that the power supply assembly 7 can be replaced.

[0050] The above uses specific examples to elaborate on the present invention, which is only used to help understand the present invention and is not intended to limit the present invention. For those skilled in the technical field to which the present invention pertains, based on the idea of the present invention, several simple deductions, deformations or substitutions can also be made.

Claims

1. A heating device, characterized in that: The invention comprises a receiving member and a heating member of an integrated structure, wherein the receiving member has an assembly channel and a receiving channel which are connected to each other in the axial direction of the receiving member, the receiving channel is used to receive an aerosol matrix, and the heating member has a core column portion, a puncture portion and an airflow channel; wherein: The core column portion is arranged in the assembly channel and is used to confine the aerosol matrix in the receiving channel; The puncture portion is protruding from the core column portion and arranged toward the receiving channel; the puncture portion is extended into the receiving channel and arranged to be inserted into the interior of the aerosol matrix; The airflow channel is used to guide the airflow through the heating element so as to be heated by the heating element to form a hot airflow; the airflow channel includes a first channel and a second channel, the first channel is set through the core column part, and the second channel is set through the core column part and the puncture part.

2. The heating device according to claim 1, characterized in that The number of the first channels is set to be multiple, and the multiple first channels are arranged at intervals around the geometric center line of the core column portion in the axial direction, and the geometric center line of the puncture part in the axial direction coincides with the geometric center line of the core column portion in the axial direction.

3. The heating device according to claim 1, characterized in that The puncture portion comprises a puncture section and a column tube section, wherein one end of the column tube section in the axial direction is fixed to the core column portion, the puncture section is formed at the other end of the column tube section in the axial direction, and the radial dimension of the puncture section in the receiving member gradually decreases from one end of the puncture section close to the column tube section toward one end away from the column tube section.

4. The heating device according to claim 3, characterized in that The second channel has an air inlet and an air outlet. The air inlet is arranged on the end surface of the core column portion away from the puncture portion in the axial direction, and the air outlet is arranged through the side wall of the column tube section.

5. The heating device according to claim 3, characterized in that: A portion of the puncture section extends out of the receiving member arrangement from one end of the receiving channel away from the assembly channel.

6. The heating device according to claim 1, characterized in that The core column portion has an air inlet end face and an air outlet end face opposite to each other in the axial direction, the first channel is arranged through the air inlet end face and the air outlet end face of the core column portion, and the air outlet end face is protrudingly provided with a first limiting structure; the first limiting structure is used to support the aerosol matrix so that the aerosol matrix and the first channel maintain a preset gap in the axial direction.

7. The heating device according to claim 1, characterized in that A second limiting structure is also provided inside the receiving piece, and the second limiting structure divides the internal space of the receiving piece into the assembly channel and the receiving channel. The second limiting structure is used to support the core column part to limit the core column part within the assembly channel.

8. The heating device according to any one of claims 1 to 7, characterized in that: It also includes a heating element for generating heat; the heating element is arranged in the assembly channel, and the heating element is coated on the core column portion along the circumference of the receiving element.

9. The heating device according to claim 8, characterized in that In the assembly channel, a glue containing space distributed around the core column portion is formed between the core column portion and the receiving member, and the glue containing space is filled with sealant, and the sealant is used to fix the heating element, the receiving member and the core column portion.

10. An aerosol generating device, characterized in that: It comprises a body shell and a heating device as described in any one of claims 1 to 9, wherein the body shell has an air inlet channel and an air outlet channel, and the heating device is connected and arranged between the air inlet channel and the air outlet channel; wherein the receiving channel is connected to the air outlet channel.

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