Aerosol generation device and microwave heating assembly thereof

Abstract

The present invention relates to an aerosol generation device and a microwave heating assembly thereof. The microwave heating assembly comprises: an outer conductor unit, which comprises a closed end, an open end and a cavity; an inner conductor unit, which is arranged in the cavity and comprises a radiation structure and an inner conductor body; an accommodating seat, which is connected to the open end and comprises an accommodating cavity located in the cavity; and a sealing seat, which is cylindrical and is arranged between the inner conductor body and the accommodating seat, and comprises a sealing side wall configured to reduce the generation of condensate in a heating process. The radiation structure passes through the sealing seat and the accommodating seat and extends into the accommodating cavity. The aerosol generation device comprises a microwave generation unit and the microwave heating assembly. In the present invention, the sealing seat and the accommodating seat are in interference fit with the radiation structure to form a dual sealing structure, so that the generation of condensate can be effectively reduced, and the generated condensate is prevented from entering the cavity, thereby reducing the forming of condensate and the contamination of the cavity, and improving the use reliability of the cavity.

Description

Aerosol generating device and microwave heating component thereof Technical Field

[0001] The present invention relates to the technical field of aerosol generation, and in particular to an aerosol generating device and a microwave heating component thereof. Background Art

[0002] In the related technology, a special heating device is used to heat the processed aerosol-generating product to a certain temperature, releasing aerosol for users to inhale. Compared with the traditional direct combustion heating method, the temperature is lower, the harmful substances released are less, and it has the advantages of restoring taste and satisfaction, making it increasingly popular among consumers.

[0003] However, the outer wall of the cavity of the aerosol generating device in the related art is often at a lower temperature. When the aerosol encounters the outer conductor unit with a lower temperature, it is easy to form condensation. The condensation flows downward into the core position of the cavity, causing pollution and affecting the normal operation of the device. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an improved aerosol generating device and a microwave heating component thereof.

[0005] The technical solution adopted by the present invention to solve the technical problem is to construct a microwave heating assembly for heating an aerosol-generating product, comprising:

[0006] an outer conductor unit comprising a closed end, an open end opposite to the closed end, and a cavity formed between the closed end and the open end;

[0007] an inner conductor unit, which is disposed in the cavity and includes a radiating structure and an inner conductor body;

[0008] a receiving seat connected to the open end and comprising a receiving cavity for receiving the aerosol-generating product, wherein the receiving cavity is located in the cavity; and

[0009] a sealing seat in a cylindrical shape, disposed between the inner conductor body and the receiving seat, and comprising a sealing sidewall configured to reduce the generation of condensation during heating;

[0010] The radiation structure passes through the sealing seat and the receiving seat and extends into the receiving cavity, and the sealing seat and the receiving seat are respectively interference-fitted with the radiation structure.

[0011] In some embodiments, the sealing seat is fixed to the inner conductor body.

[0012] In some embodiments, the sealing side wall abuts against the outer conductor unit.

[0013] In some embodiments, the receiving seat is at least partially located in the sealing seat and is movable relative to the sealing seat.

[0014] In some embodiments, the receiving seat includes a receiving end wall and a receiving side wall arranged around the periphery of the receiving end wall. The receiving end wall is provided with a through hole for the radiation structure to pass through, and the through hole passes through the axial direction of the outer conductor unit.

[0015] In some embodiments, the receiving seat further includes a protrusion, which is disposed on the receiving end wall and extends along the periphery of the through hole toward the open end.

[0016] In some embodiments, the microwave heating assembly further comprises a sealing member, which is disposed on the receiving end wall and covers the through hole, and is provided with a through hole; when the radiation structure passes through the through hole, the sealing member and the radiation structure are interference fit.

[0017] In some embodiments, the inner conductor unit further includes a conductor post including a fixed end and a free end opposite to each other, wherein the fixed end is fixed to the outer conductor unit and is in ohmic contact with the outer conductor unit.

[0018] In some embodiments, the inner conductor unit further includes a conductor disk connected to the free end, and an outer diameter of the conductor disk is larger than an outer diameter of the conductor post and smaller than an inner diameter of the outer conductor unit.

[0019] The present invention also constructs an aerosol generating device, including a microwave generating unit and the above-mentioned microwave heating component, wherein the microwave heating component also includes a microwave feeding unit connected to the outer conductor unit, and the microwave feeding unit is connected to the microwave generating unit and feeds the microwave generated by the microwave generating unit into the cavity.

[0020] The implementation of the present invention has the following beneficial effects: the microwave heating assembly of the present invention includes a receiving seat and a sealing seat, and the sealing seat and the receiving seat are respectively interference-fitted with the radiation structure to form a double sealing structure, which can effectively reduce the generation of condensate and prevent the generated condensate from entering the cavity, thereby reducing the formation of condensate and cavity contamination, and improving the reliability of cavity use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0022] FIG1 is a schematic structural diagram of an embodiment of a microwave heating assembly of the present invention;

[0023] FIG2 is a cross-sectional view of an embodiment of a microwave heating assembly of the present invention;

[0024] FIG3 is an exploded view of an embodiment of a microwave heating assembly of the present invention;

[0025] FIG4 is a cross-sectional view of an embodiment of a receiving seat of the present invention;

[0026] FIG5 is a cross-sectional view of another embodiment of the receiving seat of the present invention;

[0027] FIG6 is a cross-sectional view of an embodiment of a sealing seat of the present invention. DETAILED DESCRIPTION

[0028] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific embodiments of the present invention are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "up", "down", "left", "right", "longitudinal", "horizontal", "vertical", "horizontal", "top", "bottom", "inside", "outside", "head", "tail", etc. are based on the directions or positional relationships shown in the accompanying drawings and are constructed and operated in specific directions. They are only for the convenience of describing the technical solution and do not indicate that the devices or components referred to must have specific directions. Therefore, they should not be understood as limiting the present invention.

[0029] It should also be noted that, unless otherwise clearly specified and limited, terms such as "installed", "connected", "connected", "fixed", and "set" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and 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 intervening elements. The terms "first", "second", "third", etc. are only for the convenience of describing the present technical solution, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", "third", etc. may explicitly or implicitly include one or more of such features. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0030] In the following description, specific details such as particular system structures and techniques are provided for purposes of illustration, not limitation, to facilitate a thorough understanding of the embodiments of the present invention. However, it will be apparent to those skilled in the art that the present invention may be practiced in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0031] FIG1 and FIG2 illustrate an aerosol-generating device according to some embodiments of the present invention. The aerosol-generating device can utilize microwaves to heat an aerosol-generating article 20 to generate aerosol through atomization for inhalation by a user.

[0032] As shown in Figure 1, in some embodiments, the aerosol generating device includes a microwave heating component 10 and a microwave generating unit (not shown), a control component (not shown) and a power supply component (not shown). The power supply component is used to provide electrical energy to the microwave heating component 10, the microwave generating unit and the control component. The control component is used to control the operation of the microwave heating component 10 and the microwave generating unit. The microwave generating unit can generate microwave signals and feed microwaves into the microwave heating component 10 by connecting to the microwave heating component 10. The microwave heating component 10 uses microwaves to heat the aerosol generating product 20.

[0033] In some embodiments, the microwave heating assembly 10 may be substantially cylindrical. Of course, the microwave heating assembly 10 is not limited to a cylindrical shape, and may also be in other shapes such as a square column or an elliptical column.

[0034] As shown in Figures 1 and 2, the microwave heating assembly 10 includes an outer conductor unit 1, an inner conductor unit 2, a microwave feeding unit 3, a receiving seat 4, and a sealing seat 5. The outer conductor unit 1 can be cylindrical, having a closed end 11 and an open end 12 opposite to the closed end 11, and can define a semi-enclosed cavity 13. A receiving cavity 40 for receiving the aerosol generating product 20 is formed in the cavity 13. The inner conductor unit 2 mainly plays a role in microwave conduction. The inner conductor unit 2 is arranged in the cavity 13 of the outer conductor unit 1 and can have good ohmic contact with the outer conductor unit 1, and is used to couple the energy introduced by the microwave feeding unit 3 into the cavity 13.

[0035] The outer conductor unit 1 can be made of metal or other high-conductivity materials to confine microwave energy within the cavity 13. The shape of the outer conductor unit 1 includes but is not limited to a cylinder or a cuboid, and the size of the outer shell can be adjusted according to the size of the aerosol generating article 20.

[0036] 3 , the outer conductor unit 1 may include a conductor side wall 14 and a conductor end wall 15 . The conductor side wall 14 may be cylindrical, with the top of the conductor side wall 14 being open, forming the open end 12 of the outer conductor unit 1 . The bottom of the conductor side wall 14 is also open, and the conductor end wall 15 is integrally sealed to the bottom of the conductor side wall 14 , forming the closed end 11 of the outer conductor unit 1 .

[0037] A feeding hole 141 is formed on the conductor side wall 14. The feeding hole 141 is formed in a direction perpendicular to the central axis of the conductor side wall 14 and straight through the conductor side wall 14, for inserting the microwave feeding unit 3 into the cavity 13. Of course, the feeding hole 141 can also be formed on the conductor end wall 15, and the microwave feeding unit 3 is inserted into the cavity 13 from the bottom of the microwave heating assembly 10.

[0038] The microwave feeding unit 3 is detachably mounted on the outer conductor unit 1 and is used to feed the microwaves generated by the microwave generating unit into the cavity 13, thereby forming a microwave field in the cavity 13 that can act on the aerosol generating product 20. The microwave field can act on the aerosol generating product 20 to achieve microwave heating thereof.

[0039] One end of the microwave feeding unit 3 is inserted into the cavity 13 from the feeding hole 141 of the outer conductor unit 1 and is in ohmic contact with the inner conductor unit 2. In some embodiments, one side of the microwave feeding unit 3 is connected to the microwave generating device and is connected through a coaxial connector or a microstrip line, and the other side extends into the cavity 13 and forms an ohmic contact with the cavity 13. The microwave feeding unit 3 is made of metal material, preferably, it can be made of metal aluminum or copper. Furthermore, its outer surface can be coated with silver or gold. As shown in Figure 2, in some embodiments, the microwave feeding unit 3 includes an inner conductor 31, an outer conductor 32, and a dielectric layer 33 between the inner conductor 31 and the outer conductor 32.

[0040] The outer conductor 32 may be cylindrical, and both ends of the outer conductor 32 are open. During assembly, the outer side surface of the outer conductor 32 is in ohmic contact with the inner wall of the feed hole 141 .

[0041] The inner conductor 31 has a straight, needle-like structure. One end of the inner conductor 31 is a connection end, located within the outer conductor 32, for connecting to the microwave generating unit and receiving microwaves. The other end of the inner conductor 31 is a feed-in end 311, located outside the outer conductor 32. During assembly, it can extend into the cavity 13 and form a good ohmic contact with the inner conductor unit 2. Of course, the feed-in end 311 of the inner conductor 31 is not limited to forming an ohmic contact with the inner conductor unit 2; it can also form an ohmic contact directly with the outer conductor unit 1.

[0042] It is understandable that the shape of the inner conductor 31 is not limited to a straight line. The inner conductor 31 may also be L-shaped (not shown). For example, the inner conductor 31 may include a first section perpendicular to the central axis of the cavity 13 and a second section parallel to the central axis of the cavity 13. The first section is partially located in the outer conductor 32 and is integrally connected to one end of the second section. The other end of the second section is arranged outside the outer conductor 32 and is in direct ohmic contact with the conductor end wall 15 of the outer conductor unit 1.

[0043] As shown in Figures 2 and 3, the inner conductor unit 2 includes a radiating structure 21 and an inner conductor body 22. The radiating structure 21 passes through the sealing seat 5 and the receiving seat 4 in sequence and extends into the receiving cavity 40. The sealing seat 5 and the receiving seat 4 are respectively interference fit with the radiating structure 21 to achieve a double sealing structure.

[0044] The inner conductor unit 2 is connected to the closed end 11 of the outer conductor unit 1 and is in ohmic contact with the conductor end wall 15, forming a short-circuit end of the microwave heating component 10. The radiation structure 21 is located in the cavity 13 but is not in direct contact with the outer conductor unit 1, forming an open-circuit end of the microwave heating component 10.

[0045] The inner conductor body 22 includes a conductor post 221 disposed within the cavity 13. The outer diameter of the conductor post 221 is smaller than the inner diameter of the outer conductor unit 1. The conductor post 221 includes a fixed end 2211 and a free end. The fixed end 2211 is fixed to the outer conductor unit 1 and forms ohmic contact with the conductor end wall 15 of the outer conductor unit 1. It is understood that in other embodiments, the fixed end 2211 may be integrally connected to the conductor end wall 15 of the outer conductor unit 1.

[0046] The conductor post 221 primarily serves as a microwave conductor. In some embodiments, it can be cylindrical. However, the conductor post 221 is not limited to a cylindrical shape and can also be a polygon or other shape. The end of the conductor post 221 away from the open end 12 of the outer conductor unit 1 is a fixed end 2211 that can be fixedly connected to the conductor end wall 15 of the outer conductor unit 1. The end of the conductor post 221 closer to the open end 12 is a free end that extends toward the open end 12 of the outer conductor unit 1.

[0047] The inner conductor body 22 also includes a conductor disc 222, which is used to adjust the feed frequency (step impedance). The conductor disc 222 is used for microwave conduction and can also increase its own inductance and capacitance, as well as lower the resonant frequency, thereby further reducing the size of the cavity 13. The conductor disc 222 can be circular and coaxially connected to the free end of the conductor post 221. The outer diameter of the conductor disc 222 is larger than the outer diameter of the conductor post 221 and smaller than the diameter of the cavity 13. The radial distance between the conductor disc 222 and the inner wall of the cavity 13 is much smaller than the radial distance between the conductor post 221 and the inner wall of the cavity 13.

[0048] The radiating structure 21 may be coupled to the free end of the conductor post 221. The radiating structure 21 includes at least one probe, which may be longitudinally shaped and extend along an axis parallel to the conductor post 221. In some embodiments, the probe may be embedded in the conductor post 221.

[0049] As shown in Figures 3 to 5, the receiving seat 4 can be roughly hollow cylindrical, and the receiving cavity 40 can be formed in the receiving seat 4. The receiving cavity 40 is located in the main area where the microwave field is formed. The receiving seat 4 can also protect the cavity 13 and the inner conductor unit 2 from being contaminated by mist, or as little as possible from being contaminated by mist.

[0050] The receiving seat 4 includes a fixing portion 41 and a receiving portion 42 . The fixing portion 41 of the receiving seat 4 can be fixedly or detachably mounted at the open end 12 of the outer conductor unit 1 .

[0051] As shown in Figures 4 and 5, the housing portion 42 includes a housing end wall 421 and a cylindrical housing side wall 422 surrounding the periphery of the housing end wall 421. The outer diameter of the housing side wall 422 is smaller than the inner diameter of the conductor side wall 14 of the outer conductor unit 1. A housing cavity 40 is formed between the housing end wall 421 and the housing side wall 422, in which the aerosol generating product 20 can be housed. The housing end wall 421 is provided with a through hole 4211 through which the radiating structure 21 can pass. The through hole 4211 extends axially along the outer conductor unit 1. The radiating structure 21 extends into the housing cavity 40 through the through hole 4211. When the aerosol generating product 20 is placed in the housing cavity 40, the radiating structure 21 can extend into the aerosol generating product located in the housing cavity 40 through the through hole 4211 to heat the aerosol generating product.

[0052] In some embodiments, the receiving seat 4 further includes a plurality of longitudinal positioning ribs 44, which are evenly spaced along the inner circumference of the receiving side wall 422. Each positioning rib 44 extends parallel to the axis of the receiving cavity 40. These positioning ribs 44 can be used to secure the aerosol-generating article 20 inserted into the receiving cavity 40. Furthermore, each adjacent positioning rib 44 forms a longitudinally extending first air inlet channel, facilitating the inhalation of ambient air into the bottom of the aerosol-generating article 20, where it then enters the aerosol-generating article 20 and removes the aerosol generated by microwave heating.

[0053] In some embodiments, the receiving seat 4 further includes a plurality of longitudinal support ribs 45, evenly spaced and radially distributed on the receiving end wall 421. It will be appreciated that the support ribs 45 serve to support the aerosol-generating article 20 while also forming a plurality of radial secondary air inlet channels. These secondary air inlet channels are connected to the primary air inlet channels to facilitate the inhalation of ambient air into the bottom of the aerosol-generating article 20, where it then enters the aerosol-generating article 20 to remove the aerosol generated by microwave heating.

[0054] As shown in FIG4 , the receiving seat 4 further includes a protrusion 43 disposed on the receiving end wall 421 and extending upward along the periphery of the through hole 4211 toward the open end 12 . This facilitates the passage of the radiating structure 21 through the through hole 4211 and prevents residual liquid at the bottom of the receiving seat 4 from flowing out of the through hole 4211 .

[0055] Combined with Figures 3 and 4, since the temperature of the medium can reach up to 300°C or above when it is heated, although the through hole 4211 at the bottom of the receiving seat 4 and the radiation structure 21 are sealed by interference fit, the sealing will gradually deteriorate under long-term high-temperature operation. If the receiving seat 4 and the radiation structure 21 are dynamically sealed, dirt will adhere to the radiation structure 21 after a long period of operation, which will also cause the seal to deteriorate. After the seal deteriorates, the mist generated during the heating process can easily enter the cavity 13, and form condensation after encountering the conductor side wall 14 of the outer conductor unit 1 with a relatively low temperature. The condensation flows downward into the core position of the cavity 13, causing pollution and affecting the normal operation of the device.

[0056] As shown in FIG5 , to improve the sealing effect, in some embodiments, the microwave heating assembly 10 further includes a seal 6 , which is disposed on the receiving end wall 421 and covers the through-hole 4211 . The seal 6 is provided with a perforation 61 . When the radiating structure 21 passes through the perforation 61 , the seal 6 and the radiating structure 21 form an interference fit, thereby preventing any condensate from flowing toward the core of the cavity 13 . The seal 6 may be a sealing ring, and the material of the seal 6 may include plastic, silicone, or the like. It is understood that the sealing effect can also be improved by increasing the thickness of the receiving end wall 421 to prevent condensate from flowing into the cavity 13 .

[0057] The material of the receiving seat 4 may include polymer materials, ceramic materials, metal materials, or glass materials. Specifically, polymer materials may include polytetrafluoroethylene (PTFE), polyetheretherketone (PEEK), polystyrene polymer (PPSU), polycarbonate (PC), ABS, polypropylene (PP), etc.; ceramic materials may include aluminum oxide, zirconium oxide, etc. In practical applications, polymer materials are preferred due to their advantages such as low cost and low thermal conductivity.

[0058] Referring to Figures 2, 3 and 6 together, the sealing seat 5 can be cylindrical and located in the cavity 13. The sealing seat 5 is arranged between the inner conductor body 22 and the receiving seat 4, and forms a receiving cavity. The sealing seat 5 includes a sealing side wall 51 and a sealing end wall 52. The sealing side wall 51 is configured to reduce the generation of condensation during the heating process. The sealing side wall 51 can abut against the conductor side wall 14 of the outer conductor unit 1, which can effectively prevent the formation of condensation on the outer conductor unit 1. The sealing seat 5 can be fixed on the inner conductor unit 2. The outer diameter of the sealing seat 5 is less than or equal to the inner diameter of the outer conductor unit 1, and the inner diameter of the sealing seat 5 is greater than the outer diameter of the receiving side wall 422. The depth of the sealing seat 5 can be equivalent to the depth of the receiving portion 42.

[0059] As shown in Figures 3 and 6, the bottom of the sealing seat 5 may be provided with a boss 53. The boss 53 is disposed on the end surface of the sealing end wall 52 of the sealing seat 5 opposite the receiving seat 4 and extends along the open end 12. It is understood that the bottom of the sealing seat 5 is provided with an opening 54 corresponding to the through hole 4211 of the receiving seat 4. Specifically, the opening 54 may be located at the center of the boss 53. This boss 53 can relatively increase the height of the bottom center of the sealing seat 5, thereby increasing the sealing area between it and the radiating structure 21 and preventing residual liquid at the bottom of the sealing seat 5 from flowing out of the opening 54.

[0060] Of course, the boss 53 is not a necessary component in the present invention; it is provided as a preferred embodiment. As long as the sealing end wall 52 of the sealing seat 5 is thicker, the boss 53 can be omitted. Therefore, in some embodiments, the sealing area between the sealing seat 5 and the radiating structure 21 can be increased by increasing the thickness of the sealing end wall 52.

[0061] As shown in Figure 2, in this embodiment, the sealing end wall 52 of the sealing seat 5 can abut against the receiving end wall 421 of the receiving seat 4. Of course, the thickness of the sealing end wall 52 can be adjusted according to actual conditions, and the sealing end wall 52 of the sealing seat 5 does not necessarily have to abut against the receiving seat 4. This is not specifically limited here.

[0062] A sealing seat 5 is added between the inner conductor body 22 and the receiving seat 4. The interference fit between the sealing seat 5 and the radiating structure 21 forms a static seal (relative to the receiving seat 4), preventing any condensation from flowing toward the core of the cavity 13. The thermal conductivity of the sealing seat 5 is significantly lower than that of the outer conductor unit 1, reducing the outward heat transfer of the atomized medium and indirectly improving energy efficiency. As a result, the sealing seat 5 maintains a higher temperature than the outer conductor unit 1, making it less likely for mist to condense there.

[0063] In summary, the present invention has a double sealing structure, wherein the double sealing structure includes a first layer of sealing formed between the receiving seat 4 and the radiation structure 21 and a second layer of sealing formed between the sealing seat 5 and the radiation structure 21 .

[0064] As shown in FIG2 , the receiving seat 4 is at least partially located within the accommodating cavity of the sealing seat 5. The receiving seat 4 can move axially up and down relative to the sealing seat 5, so that the receiving seat 4 has the function of lifting the aerosol generating product 20. Of course, the receiving seat 4 and the sealing seat 5 can be relatively fixed. Regardless of whether the receiving seat 4 has the function of lifting the aerosol generating product 20, that is, regardless of whether the receiving seat 4 can move, the sealing seat 5 always remains stationary. The aerosol and condensate must first break through the seal between the receiving seat 4 and the radiating structure 21 and the seal between the sealing seat 5 and the radiating structure 21 before they can flow into the core position of the cavity 13. Therefore, the double sealing structure has a better sealing effect.

[0065] It is understandable that the above embodiments only express the preferred implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the patent scope of the present invention. It should be pointed out that for ordinary technicians in this field, without departing from the concept of the present invention, the above technical features can be freely combined, and several deformations and improvements can be made, all of which fall within the scope of protection of the present invention. Therefore, all equivalent changes and modifications made to the scope of the claims of the present invention should fall within the scope of coverage of the claims of the present invention.

Claims

1. A microwave heating assembly for heating an aerosol generating product (20), characterized in that: include: An outer conductor unit (1) comprising a closed end (11), an open end (12) opposite to the closed end (11), and a cavity (13) formed between the closed end (11) and the open end (12); An inner conductor unit (2), which is arranged in the cavity (13) and comprises a radiation structure (21) and an inner conductor body (22); a receiving seat (4), which is connected to the open end (12) and comprises a receiving cavity (40) for receiving the aerosol generating product (20), wherein the receiving cavity (40) is located in the cavity (13); as well as The sealing seat (5) is cylindrical and is disposed between the inner conductor body (22) and the receiving seat (4), and comprises a sealing side wall (51), wherein the sealing side wall (51) is configured to reduce the generation of condensate during the heating process; The radiation structure (21) passes through the sealing seat (5) and the receiving seat (4) and extends into the receiving cavity (40), and the sealing seat (5) and the receiving seat (4) are respectively interference-fitted with the radiation structure (21).

2. The microwave heating assembly according to claim 1, characterized in that: The sealing seat (5) is fixed on the inner conductor body (22).

3. The microwave heating assembly according to claim 1, characterized in that: The sealing side wall (51) abuts against the outer conductor unit (1).

4. The microwave heating assembly according to claim 1, characterized in that: The receiving seat (4) is at least partially located inside the sealing seat (5) and is movable relative to the sealing seat (5).

5. The microwave heating assembly according to claim 1, characterized in that: The receiving seat (4) comprises a receiving end wall (421) and a receiving side wall (422) arranged around the periphery of the receiving end wall (421); the receiving end wall (421) is provided with a through hole (4211) through which the radiation structure (21) can pass; the through hole (4211) penetrates along the axial direction of the outer conductor unit (1).

6. The microwave heating assembly according to claim 5, characterized in that: The receiving seat (4) further comprises a convex portion (43), wherein the convex portion (43) is arranged on the receiving end wall (421) and extends along the periphery of the through hole (4211) towards the opening end (12).

7. The microwave heating assembly according to claim 5, characterized in that: The microwave heating assembly (10) further comprises a sealing member (6), wherein the sealing member (6) is arranged on the receiving end wall (421) and covers the through hole (4211), and a through hole (61) is arranged on the sealing member (6); when the radiation structure (21) passes through the through hole (61), the sealing member (6) and the radiation structure (21) are interference-fitted.

8. The microwave heating assembly according to claim 1, characterized in that: The inner conductor unit (2) further comprises a conductor column (221), which comprises an opposite fixed end (2211) and a free end, wherein the fixed end (2211) is fixed to the outer conductor unit (1) and is in ohmic contact with the outer conductor unit (1).

9. The microwave heating assembly according to claim 8, characterized in that: The inner conductor unit (2) further comprises a conductor disk (222), wherein the conductor disk (222) is connected to the free end, and the outer diameter of the conductor disk (222) is greater than the outer diameter of the conductor column (221) and smaller than the inner diameter of the outer conductor unit (1).

10. An aerosol generating device, characterized in that: The microwave heating component (10) comprises a microwave generating unit and any one of claims 1 to 9, wherein the microwave heating component (10) further comprises a microwave feeding unit (3) connected to the outer conductor unit (1), wherein the microwave feeding unit (3) is connected to the microwave generating unit and feeds the microwave generated by the microwave generating unit into the cavity (13).

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