Aerosol generating device and microwave heating assembly thereof

Abstract

The invention relates to an aerosol generating device and a microwave heating assembly thereof, and the microwave heating assembly comprises an outer conductor unit which comprises a closed end, an open end and a cavity; the inner conductor unit is arranged in the cavity and comprises a radiation structure and an inner conductor main body; the containing seat is connected to the open end and comprises a containing cavity, and the containing cavity is located in the cavity; the sealing seat is cylindrical, is arranged between the inner conductor main body and the accommodating seat and comprises a sealing side wall, and the sealing side wall is configured to reduce generation of condensate in the heating process; and the radiation structure passes through the sealing seat and the accommodating seat and extends into the accommodating cavity. The aerosol generating device comprises a microwave generating unit and a microwave heating assembly. The sealing seat and the accommodating seat are respectively in interference fit with the radiation structure to form a double-sealing structure, so that the generation of condensate can be effectively reduced, the generated condensate is prevented from entering the cavity, the formation of the condensate and the pollution of the cavity are reduced, and the use reliability of the cavity is improved.

Description

Technical Field

[0001] The 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 the aerosol for the user 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 more and more 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: construct a microwave heating assembly for heating an aerosol generating product, comprising:

[0006] an outer conductor unit including 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 comprises 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, which is cylindrical, is disposed between the inner conductor body and the receiving seat, and includes a sealing side wall, wherein the sealing side wall is configured to reduce the generation of condensate 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 surrounding the periphery of the receiving end wall, the receiving end wall is provided with a through hole for the radiation structure to pass therethrough, and the through hole penetrates along 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, wherein the sealing member is disposed on the receiving end wall and covers the through hole, and a through hole is disposed on the sealing member; 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, which includes 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, the conductor disk is connected to the free end, and an outer diameter of the conductor disk is larger than an outer diameter of the conductor column 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, 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 comprises a receiving seat and a sealing seat, the sealing seat and the receiving seat are respectively interference fit 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, reduce the formation of condensate and cavity contamination, and improve 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] Figure 1 It is a structural schematic diagram of an embodiment of a microwave heating assembly of the present invention;

[0023] Figure 2 is a cross-sectional view of an embodiment of a microwave heating assembly of the present invention;

[0024] Figure 3 is an exploded view of an embodiment of a microwave heating assembly of the present invention;

[0025] Figure 4 is a cross-sectional view of an embodiment of a receiving seat of the present invention;

[0026] Figure 5 is a cross-sectional view of another embodiment of the receiving seat of the present invention;

[0027] Figure 6 It is a cross-sectional view of an embodiment of the 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, are constructed and operated in a specific direction, and are only for the convenience of describing the present technical solution, rather than indicating that the device or element referred to must have a specific direction, and therefore cannot be understood as a limitation to the present invention.

[0029] It should also be noted that, unless otherwise clearly specified and limited, the terms such as "installed", "connected", "connected", "fixed", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. When an element is referred to as being "on" or "under" another element, the element can be "directly" or "indirectly" located on the other element, or there may be one or more intermediate elements. The terms "first", "second", "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 technical features indicated. Therefore, the features defined as "first", "second", "third", etc. can explicitly or implicitly include one or more of the 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 specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present invention. However, it should be clear to those skilled in the art that the present invention may be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present invention.

[0031] Figure 1 and Figure 2 The aerosol generating device according to some embodiments of the present invention is shown. The aerosol generating device can use microwaves to heat the aerosol generating article 20 to generate aerosol through atomization for inhalation by a user.

[0032] like Figure 1 As shown, 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 with 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 component 10 may be substantially cylindrical. Of course, the microwave heating component 10 is not limited to a cylindrical shape, and may also be in other shapes such as a square column, an elliptical column, etc.

[0034] like Figure 1 and Figure 2 As shown, 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 may be cylindrical, having a closed end 11 and an open end 12 opposite to the closed end 11, and may 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 may 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 material or other high conductivity materials, and is used to confine microwave energy in the cavity 13. The shape of the outer conductor unit 1 includes but is not limited to a cylinder and a cuboid, and the size of the outer shell can be adjusted according to the size of the aerosol generating article 20.

[0036] See also Figure 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. The top of the conductor side wall 14 is open to form the open end 12 of the outer conductor unit 1. The bottom of the conductor side wall 14 is also open to form the closed end 11 of the outer conductor unit 1.

[0037] A feeding hole 141 is formed on the conductor side wall 14, and the feeding hole 141 is formed along a direction perpendicular to the central axis of the conductor side wall 14 and straightly penetrates the conductor side wall 14, so as to allow the microwave feeding unit 3 to be inserted 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 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 plated with silver or gold. Figure 2 As shown, 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 circumferential side surface of the outer conductor 32 is in ohmic contact with the inner wall surface of the feeding hole 141 .

[0041] The inner conductor 31 is a straight needle-shaped structure, one end of the inner conductor 31 is a connection end, located inside the outer conductor 32, and used to connect to the microwave generating unit and receive microwaves, and the other end of the inner conductor 31 is a feeding end 311, located outside the outer conductor 32, which can be inserted into the cavity 13 during assembly and form a good ohmic contact with the inner conductor unit 2. Of course, the feeding end 311 of the inner conductor 31 is not limited to the ohmic contact with the inner conductor unit 2, and it can also directly form an ohmic contact with the outer conductor unit 1.

[0042] It can be understood 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] like Figure 2 and Figure 3 As shown, the inner conductor unit 2 includes a radiation structure 21 and an inner conductor body 22. The radiation 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 radiation structure 21 to realize 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 to form 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 to form an open-circuit end of the microwave heating component 10.

[0045] The inner conductor body 22 includes a conductor post 221, which is disposed in the cavity 13, and 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 opposite to each other, and the fixed end 2211 is fixed to the outer conductor unit 1 and is in ohmic contact with the conductor end wall 15 of the outer conductor unit 1. It is understandable that in other embodiments, the fixed end 2211 can be integrally connected with the conductor end wall 15 of the outer conductor unit 1.

[0046] The conductor column 221 mainly plays a role in microwave conduction. In some embodiments, it can be cylindrical. It is understandable that the conductor column 221 is not limited to a cylindrical shape, but can also be a polygon or other shapes. The end of the conductor column 221 away from the open end 12 of the outer conductor unit 1 is a fixed end 2211, which can be fixedly connected to the conductor end wall 15 of the outer conductor unit 1; the end close to the open end 12 is a free end, extending toward the open end 12 of the outer conductor unit 1.

[0047] The inner conductor body 22 also includes a conductor disc 222 for adjusting the feeding frequency (step impedance). The conductor disc 222 is used for microwave conduction, and can also increase its own inductance and capacitance, and reduce the resonant frequency, thereby facilitating a further reduction in the size of the cavity 13. The conductor disc 222 can be in the shape of a disc, and can be coaxially connected to the free end of the conductor post 221. The outer diameter of the conductor disc 222 is greater than the outer diameter of the conductor post 221, and the outer diameter of the conductor disc 222 is smaller than the diameter of the cavity 13. The radial distance from the conductor disc 222 to the inner wall surface of the cavity 13 is much smaller than the radial distance from the conductor post 221 to the inner wall surface of the cavity 13.

[0048] The radiating structure 21 may be combined with a 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] like Figures 3 to 5 As shown, the receiving seat 4 can be roughly in the shape of a hollow cylinder, and a receiving cavity 40 can be formed in the receiving seat 4, and the receiving cavity 40 is 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 fog or as little as possible.

[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 installed at the opening end 12 of the outer conductor unit 1 .

[0051] like Figure 4 and Figure 5 As shown, the receiving portion 42 includes a receiving end wall 421 and a cylindrical receiving side wall 422 arranged around the periphery of the receiving end wall 421, and the outer diameter of the receiving side wall 422 is smaller than the inner diameter of the conductor side wall 14 of the outer conductor unit 1. A receiving cavity 40 is formed between the receiving end wall 421 and the receiving side wall 422, in which the aerosol generating product 20 can be received. The receiving end wall 421 is provided with a through hole 4211 through which the radiation structure 21 can pass, and the through hole 4211 penetrates along the axial direction of the outer conductor unit 1. The radiation structure 21 extends into the receiving cavity 40 through the through hole 4211. When the aerosol generating product 20 is placed in the receiving cavity 40, the radiation structure 21 can extend into the aerosol generating product located in the receiving 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; these positioning ribs 44 are evenly spaced and arranged on the inner circumference of the receiving side wall 422. Each positioning rib 44 extends in a direction parallel to the axis of the receiving cavity 40. In one aspect, these positioning ribs 44 can be used to clamp the aerosol generating product 20 inserted into the receiving cavity 40, and in another aspect, a longitudinally extending first air inlet channel is formed between each two adjacent positioning ribs 44 to facilitate the ambient air to be sucked into the bottom of the aerosol generating product 20, and then enter the aerosol generating product 20 to take away the aerosol generated by microwave heating.

[0053] In some embodiments, the receiving seat 4 further includes a plurality of longitudinal supporting ribs 45; these supporting ribs 45 are evenly spaced and radially distributed on the receiving end wall 421. It can be understood that the supporting ribs 45 are used to support the aerosol generating product 20 on one hand, and form a plurality of radial second air inlet channels on the other hand. These second air inlet channels are respectively connected with these first air inlet channels to facilitate the ambient air to be sucked into the bottom of the aerosol generating product 20, and then enter the aerosol generating product 20 to take away the aerosol generated by microwave heating.

[0054] like Figure 4 As shown, the receiving seat 4 further includes a protrusion 43, which is disposed on the receiving end wall 421 and extends upward along the periphery of the through hole 4211 toward the open end 12, so as to facilitate the radiation structure 21 to pass through the through hole 4211 and prevent the residual liquid at the bottom of the receiving seat 4 from flowing out of the through hole 4211.

[0055] Combined Figure 3 and Figure 4 , because when the medium is heated, the temperature can reach up to 300°C or more, 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, the radiation structure 21 will be attached with dirt after working for a long time, 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 condensate after encountering the conductor side wall 14 of the outer conductor unit 1 with a relatively low temperature. The condensate flows downward into the core position of the cavity 13, causing pollution and affecting the normal operation of the device.

[0056] like Figure 5As shown, in order to improve the sealing effect, in some embodiments, the microwave heating assembly 10 further includes a sealing member 6, which is arranged on the receiving end wall 421 and covers the through hole 4211, and a perforation 61 is arranged on the sealing member 6; when the radiation structure 21 passes through the perforation 61, the sealing member 6 and the radiation structure 21 are interference-fitted, which can prevent the formed condensate from flowing to the core position of the cavity 13. The sealing member 6 can be a sealing ring, and the material of the sealing member 6 can include plastic, silicone, etc. It can be understood that the thickness of the receiving end wall 421 can be increased so that the condensate is not easy to flow into the cavity 13, and the sealing effect is better.

[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), ppsu, pc, ABS, pp, etc.; ceramic materials may include aluminum oxide, zirconium oxide, etc. In practical applications, polymer materials are preferred, which have the advantages of low cost and low thermal conductivity.

[0058] See also Figure 2 , Figure 3 and Figure 6 , 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, and the sealing side wall 51 is configured to reduce the generation of condensate 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 condensate 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] like Figure 3 and Figure 6 As shown, the bottom of the sealing seat 5 may be provided with a boss 53, which is arranged on an end surface of the sealing end wall 52 of the sealing seat 5 opposite to the receiving seat 4 and extends along the open end 12. It can be 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 can be arranged at the center of the boss 53. The boss 53 can relatively increase the height of the bottom center of the sealing seat 5, increase the sealing area between it and the radiation structure 21, and prevent the 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, and is applied in the present invention as a preferred solution. As long as the thickness of the sealing end wall 52 of the sealing seat 5 is relatively thick, the boss 53 may not be provided. Therefore, in some embodiments, the sealing area between the sealing seat 5 and the radiation structure 21 may be increased by increasing the thickness of the sealing end wall 52.

[0061] like Figure 2 As shown, 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, which 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 radiation structure 21 is a static seal (relative to the receiving seat 4), which can prevent the formed condensate from flowing to the core position of the cavity 13. The thermal conductivity of the sealing seat 5 is much lower than that of the outer conductor unit 1, which can reduce the heat conduction of the atomized medium to the outside and indirectly improve the energy utilization rate. Therefore, the temperature of the sealing seat 5 is higher than that of the outer conductor unit 1, and the mist is not easy to form condensate on it.

[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] like Figure 2 As shown, the receiving seat 4 is at least partially located in the accommodating cavity of the sealing seat 5, and the receiving seat 4 can move up and down axially 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, and the aerosol and condensate need to first break through the seal between the receiving seat 4 and the radiation structure 21 and the seal between the sealing seat 5 and the radiation structure 21 before they can flow into the core position of the cavity 13, so the double sealing structure has a better sealing effect.

[0065] It can be understood that the above embodiments only express the preferred implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the patent scope of the present invention. It should be pointed out that, for ordinary technicians in this field, the above technical features can be freely combined without departing from the concept of the present invention, and several deformations and improvements can be made, which all belong to the protection scope of the present invention. Therefore, all equivalent changes and modifications made to the scope of the claims of the present invention should belong to the 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 in 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) toward 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 opposite fixed ends (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).

Images