Aerosol-generating device, and microwave heating assembly

Abstract

An aerosol-generating device and a microwave heating assembly. The microwave heating assembly comprises: an outer conductor unit (10), comprising a first end (10a) and a second end (10b) arranged opposite to the first end (10a), wherein the first end (10a) has an opening (111), a cavity (110) is provided between the first end (10a) and the second end (10b), and the cavity (110) is in communication with the opening (111); and a microwave leakage prevention unit (40), which is arranged in the cavity (110) and located at the opening (111), is in contact with an inner wall of the outer conductor unit (10), and cooperates with the outer conductor unit (10) to prevent microwaves from leaking out of the opening (111). In the microwave heating assembly, the microwave leakage prevention unit (40) is arranged at the first end (10a) of the outer conductor unit (10), and the microwave leakage prevention unit (40) is in contact with the inner wall of the outer conductor unit (10) and cooperates with the outer conductor unit (10), thereby preventing microwaves from leaking out of the opening (111) of the outer conductor unit (10), thus achieving an order-of-magnitude reduction in microwave leakage, and further facilitating the physical health of a user.

Description

Aerosol generating device and microwave heating component Technical Field

[0001] This invention relates to the field of atomization, and more particularly to aerosol generating devices and microwave heating components. Background Technology

[0002] Currently, aerosol generating devices on the market typically employ heated non-combustible technology, which heats the treated aerosol generating matrix to a certain temperature to release aerosols for users to inhale. Compared to traditional heating methods, this technology results in lower heating temperatures, releases fewer harmful substances, and possesses advantages such as replicating the taste and satisfaction of cigarettes, making it increasingly popular among consumers.

[0003] However, in related technologies, microwave-heated aerosol generating devices require miniaturized cavity design. When the cavity height is small, the amount of microwave leakage generated through the cavity opening will increase. Summary of the Invention

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

[0005] The technical solution adopted by this invention to solve its technical problem is: constructing a microwave heating component, comprising:

[0006] An outer conductor unit includes a first end and a second end disposed opposite to the first end; the first end has an opening; a cavity is disposed between the first end and the second end, and the cavity communicates with the opening;

[0007] A microwave leakage prevention unit is disposed in the cavity and located at the opening, in contact with the inner wall of the outer conductor unit, and cooperates with the outer conductor unit to prevent microwaves from leaking out from the opening.

[0008] In some embodiments, the microwave leakage prevention unit includes a microwave absorption structure and forms a bending structure with the inner wall of the outer conductor unit;

[0009] And / or, the microwave leakage prevention unit includes an annular body, and at least a portion of the outer wall of the annular body mates with the inner wall of the outer conductor unit.

[0010] In some embodiments, a limiting step is provided on the inner side of the outer conductor unit for limiting the installation of the microwave leakage prevention unit.

[0011] In some embodiments, the microwave leakage prevention unit includes a first annular body and a second annular body disposed at one end of the first annular body; the first annular body and the second annular body are bent into a stepped configuration;

[0012] The outer wall of the first annular body mates with the inner wall of the outer conductor unit;

[0013] A gap is provided between the outer wall of the second annular body and the inner wall of the outer conductor unit.

[0014] In some embodiments, the microwave leakage prevention unit further includes a third annular body, which is disposed at the end of the second annular body away from the first annular body and is bent into a step with the second annular body. The distance between the third annular body and the inner wall of the outer conductor unit is less than the distance between the second annular body and the inner wall of the outer conductor unit.

[0015] In some embodiments, the microwave leakage prevention unit further includes a first end face facing the opening and a second end face opposite to the first end face; a plurality of extending protrusions are provided on the second end face; the plurality of extending protrusions are circumferentially spaced along the second end face, and each extending protrusion extends toward the second end.

[0016] In some embodiments, the outer wall of the microwave leakage prevention unit is provided with a first insert structure;

[0017] The inner wall of the outer conductor unit is provided with a second insert structure that cooperates with the first insert structure;

[0018] The first card insertion structure includes a first card slot, and the second card insertion structure includes a first card protrusion that mates with the first card slot; or, the first card insertion structure includes a first card protrusion, and the second card insertion structure includes a first card slot that mates with the first card protrusion.

[0019] In some embodiments, the microwave heating assembly further includes an inner conductor unit, the inner conductor unit including a microwave radiating structure extending between the first end and the second end and connected to the outer conductor unit;

[0020] And / or, the outer conductor unit includes a hollow cylindrical body, with the first end and the second end disposed axially on the cylindrical body.

[0021] In some embodiments, the cavity is further included with a fixing unit disposed in the cavity, wherein an accommodating cavity is formed on the inner side of the fixing unit;

[0022] The inner conductor unit is at least partially inserted into the accommodating cavity;

[0023] The microwave leakage prevention unit is sleeved on the outer periphery of the fixed unit.

[0024] In some embodiments, the inner wall of the microwave leakage prevention unit is provided with a third insert structure;

[0025] The outer wall of the fixing unit is provided with a fourth insert structure that cooperates with the third insert structure;

[0026] The third card insertion structure includes a second card slot, and the fourth card insertion structure includes a second card protrusion that mates with the second card slot; or, the third card insertion structure includes a second card protrusion, and the fourth card insertion structure includes a second card slot that mates with the second card protrusion.

[0027] The present invention also constructs an aerosol generating device, comprising the microwave heating component described in the present invention, a microwave feed unit connected to the inner conductor unit of the microwave heating component, and a microwave generating unit connected to the microwave feed unit.

[0028] The aerosol generating device and microwave heating assembly of the present invention have the following beneficial effects: the microwave heating assembly provides an anti-microwave leakage unit at the first end of the outer conductor unit, and the anti-microwave leakage unit contacts the inner wall of the outer conductor unit and cooperates with the outer conductor unit, thereby preventing microwaves from leaking out from the opening of the outer conductor unit, achieving a reduction in microwave leakage by an order of magnitude, which is beneficial to the user's health. Attached Figure Description

[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0030] Figure 1 is a schematic diagram of the microwave heating component structure of the aerosol generating device in the first embodiment of the present invention;

[0031] Figure 2 is a partial structural schematic diagram of the microwave heating assembly shown in Figure 1;

[0032] Figure 3 is a schematic diagram of the outer conductor unit of the microwave heating assembly shown in Figure 2;

[0033] Figure 4 is a cross-sectional view of the outer conductor unit shown in Figure 3;

[0034] Figure 5 is a schematic diagram of the fixing unit of the microwave heating assembly shown in Figure 2;

[0035] Figure 6 is a cross-sectional view of the fixed unit shown in Figure 5;

[0036] Figure 7 is a schematic diagram of the anti-microwave leakage unit of the microwave heating assembly shown in Figure 2;

[0037] Figure 8 is a cross-sectional view of the microwave leakage prevention unit shown in Figure 7;

[0038] Figure 9 is a partial cross-sectional view of the microwave heating component of the aerosol generating device in the second embodiment of the present invention.

[0039] Figure 10 is a schematic diagram of the structure of the microwave leakage prevention unit of the microwave heating assembly shown in Figure 9;

[0040] Figure 11 is a cross-sectional view of the microwave leakage prevention unit shown in Figure 10;

[0041] Figure 12 is a partial cross-sectional view of the microwave heating component of the aerosol generating device in the third embodiment of the present invention;

[0042] Figure 13 is a partial cross-sectional view of the microwave heating component of the aerosol generating device in the fourth embodiment of the present invention.

[0043] Figure 14 is a schematic diagram of the structure of the microwave leakage prevention unit of the microwave heating assembly shown in Figure 13;

[0044] Figure 15 is a cross-sectional view of the microwave leakage prevention unit shown in Figure 14;

[0045] Figure 16 is a schematic diagram of the structure of the anti-microwave leakage unit in the microwave heating component of the aerosol generating device in the fourth embodiment of the present invention.

[0046] Figure 17 is a schematic diagram of the anti-microwave leakage unit in the microwave heating assembly of the aerosol generating device in the fifth embodiment of the present invention.

[0047] Figure 18 is a schematic diagram of the structure of the anti-microwave leakage unit in the microwave heating component of the aerosol generating device in the sixth embodiment of the present invention. Detailed Implementation

[0048] To provide a clearer understanding of the technical features, objectives, and effects of the present invention, specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings. In the following description, it should be understood that the terms "inner," "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings, and are constructed and operated in a specific orientation. They are only for the convenience of describing the technical solution and do not indicate that the device or element referred to must have a specific orientation; therefore, they should not be construed as limitations on the present invention.

[0049] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "linking," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. When an component is referred to as being "on" or "below" another component, the component can be located "directly" or "indirectly" on the other component, or there may be one or more intermediary components. The terms "first," "second," "third," etc., are only for the convenience of describing this technical solution and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first," "second," "third," etc., may explicitly or implicitly include one or more of that feature. For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances.

[0050] Figure 1 illustrates a first embodiment of the aerosol generating device of the present invention. This aerosol generating device generates aerosols for user inhalation by feeding microwaves to heat the aerosol generating matrix. The aerosol generating matrix is ​​detachably disposed within the aerosol generating device. In some embodiments, the aerosol generating matrix is ​​columnar; specifically, it can be cylindrical and can be a filamentous, granular, or sheet-like solid material made from plant leaves, flowers, and / or stems, and aroma components can be further added to this solid material.

[0051] As shown in Figure 1, in this embodiment, the aerosol generating device may include a housing (not shown), a microwave heating assembly, a microwave feed unit (not shown), and a microwave generating unit (not shown). The microwave heating assembly is housed within the housing (not shown) and is used to generate a microwave energy field within it after microwaves are introduced, thereby heating the aerosol generating matrix. The microwave feed unit (not shown) can be mounted on the microwave heating assembly and connected to the microwave heating unit (not shown), allowing the microwaves generated by the microwave generating unit (not shown) to be fed into the microwave heating assembly.

[0052] As shown in Figure 2, in this embodiment, the microwave heating assembly may include an outer conductor unit 10 and an inner conductor unit 30. The inner conductor unit 30 is at least partially disposed in the outer conductor unit 10 and can receive microwaves into the outer conductor unit 10, thereby enabling the outer conductor unit 10 to generate a microwave energy field.

[0053] As shown in Figures 3 and 4, in this embodiment, the outer conductor unit 10 is made of metal or other highly conductive material to confine the microwave capability within it. In some embodiments, the outer conductor unit 10 is a cylindrical structure, which can be a regular shape, such as a cuboid or cylinder. In some embodiments, the outer conductor unit 10 can be an irregular shape. Specifically, in this embodiment, the outer conductor unit 10 is an irregular shape formed by partial outward convexity or inward concavity.

[0054] In this embodiment, the outer conductor unit 10 may include a first end 10a and a second end 10b; wherein the first end 10a and the second end 10b are disposed opposite to each other. The aerosol generating matrix may be loaded from the first end 10a to the second end 10b.

[0055] In this embodiment, the outer conductor unit 10 may include a cylindrical body 11 and an extending protrusion 12. The cylindrical body 11 can be used to accommodate the inner conductor unit 30, and the extending protrusion 12 is disposed on the outer side wall of the cylindrical body 11 and extends outward. The extending protrusion 12 can be used for mounting a microwave feed unit (not shown).

[0056] In this embodiment, the cylinder 11 has a hollow structure and is generally cylindrical. The first end 10a and the second end 10b are the two ends of the cylinder 11 along its axial direction. In this embodiment, a cavity 110 is provided between the first end 10a and the second end 10b, formed within the cylinder 11, for accommodating the inner conductor unit 30. In this embodiment, the cylinder 11 has an opening 111 at the first end 10a, which can be used to load the aerosol generation matrix. The cylinder 11 has an end wall 112 at the second end 10b, which is used for mounting the inner conductor unit 30. In this embodiment, a through hole 1121 is provided on the end wall 112, which allows a portion of the inner conductor unit 30 to pass through. In this embodiment, a limiting step 113 is provided inside the outer conductor unit 10, located near the opening 111, which can be used to limit the installation of the microwave leakage prevention unit 40. The limiting step 113 can be in a large circular shape.

[0057] In some embodiments, the extension protrusion 12 may extend from the end wall 112 toward the outside of the cylinder 11, and may be integrally formed with the cylinder 11. The extension protrusion 12 is provided with a mounting hole 121, which may communicate with the cavity 110 for mounting a microwave feed unit (not shown).

[0058] In some other embodiments, the extended protrusion 12 may be omitted, and the outer conductor unit 10 is not limited to the structures listed above, as long as it satisfies the requirement of forming the cavity 110.

[0059] As shown in Figures 2, 5 and 6, in this embodiment, the microwave heating assembly further includes a fixing unit 20, which is disposed in the outer conductor unit 10. Specifically, it is installed in the cavity 110 and is coaxially disposed with the cavity 110, and is used to fix the aerosol generation matrix.

[0060] In this embodiment, the fixing unit 20 may be generally cylindrical. The fixing unit 20 may include an annular wall 21 and a supporting wall 22 disposed at one end of the annular wall 21. The annular wall 21 is generally annular. The supporting wall 22 is connected to the annular wall 21, and the two may be integrally formed. In this embodiment, a receiving cavity 23 is formed inside the fixing unit 20. Specifically, the receiving cavity 23 may be defined by the annular wall 21 and the supporting wall 22. The fixing unit 20 has a insertion port 24 at one end opposite to the supporting wall 22, and is disposed near the first end 10a. The insertion port 24 communicates with the receiving cavity 23 and is used for inserting the aerosol generating matrix into the receiving cavity 23, and for pulling the aerosol generating matrix out of the receiving cavity 23. In some other embodiments, the fixing unit 20 may be omitted.

[0061] In this embodiment, at least one first air guide groove 211 may be provided on the inner side of the annular wall 21. The first air guide groove 211 may extend axially along the annular wall 21 and may extend from the insertion port 24 to the support wall 22. In this embodiment, there may be multiple first air guide grooves 211, and the multiple first air guide grooves 211 may be arranged at circumferential intervals along the annular wall 21.

[0062] In this embodiment, a through hole 221 is provided at the central axis of the support wall 22. This through hole 221 can be used to allow at least a portion of the inner conductor unit 30 to pass into the receiving cavity 23. In this embodiment, the through hole 221 can be a circular hole. Of course, it is understood that in some other embodiments, the through hole 221 is not limited to a circular hole. In this embodiment, at least two support bosses 222 can be provided on the inner side of the support wall 22. The at least two support bosses 222 can be spaced apart along the circumference of the support wall 22. The interval between two adjacent support bosses 222 can form a second air guide groove 223. Each second air guide groove 223 communicates with the first air guide groove 211 to form an airflow channel. External airflow can enter the first air guide groove 211 from the insertion port 24 and then enter the second air guide groove 223 along the first air guide groove 211, thereby carrying out the aerosol generated by heating the aerosol generating matrix from the bottom of the aerosol generating matrix.

[0063] In this embodiment, the inner conductor unit 30 extends at least partially between the first end 10a and the second end 10b, and is connected to the outer conductor unit 10. The inner conductor unit 30 may include a microwave radiating structure and a microwave matching structure 31. The microwave radiating structure is an elongated columnar body that can be inserted into and connected to the microwave matching structure 31, and passes through the through hole 221 of the fixing unit 20 into the receiving cavity 23, extending between the first end 10a and the second end 10b. The microwave matching structure 31 is at least partially installed in the cavity 110 and sleeved on the outer periphery of the fixing unit 20. A predetermined distance is left between the microwave matching structure 31 and the first end 10a. The microwave matching structure 31 can be connected to the outer conductor unit 10; specifically, the microwave matching structure 31 can contact the end wall 112 of the outer conductor unit, thereby forming an ohmic contact. The microwave matching structure 31 can partially protrude from the through hole 1121 of the end wall 112. The microwave matching structure 31 is provided with a plug hole 311, which is disposed toward the mounting hole 121 of the extension protrusion 12 for connection with a microwave feed unit (not shown).

[0064] As shown in Figures 2 and 7-8, in this embodiment, the microwave heating assembly further includes a microwave leakage prevention unit 40. This unit 40 is disposed within the cavity 110 and located at the opening 111. It contacts the inner wall of the outer conductor unit 10 and cooperates with the outer conductor unit 10 to prevent microwave leakage from the opening 111. In this embodiment, the microwave leakage prevention unit 40 is generally annular and can be fitted onto the outer periphery of the fixing unit 20. Specifically, the microwave leakage prevention unit 40 is generally annular.

[0065] In this embodiment, the microwave leakage prevention unit 40 can be a microwave absorption structure, which can be made of a material with strong microwave absorption properties, such as metal, water, or silicon carbide. In this embodiment, the microwave leakage prevention unit 40 can be made of solid metal. In some other embodiments, the microwave leakage prevention unit 40 can also be made of metal mesh with a aperture of 3 mm or less. The microwave leakage prevention unit 40 forms good electrical contact with the inner wall of the outer conductor unit 10, and by being located at the opening 111, it can absorb or intercept microwaves in a timely manner when they are transmitted to the opening 111. The microwave leakage prevention unit 40 can be installed on the limiting step 113. The outer diameter of the microwave leakage prevention unit 40 can be adapted to the inner diameter of the cylinder 11, and it can partially support the portion of the limiting step 113 that extends beyond the limiting step 113 and extends towards the fixing unit 20. In this embodiment, the microwave leakage prevention unit 40 can form a bent structure with the inner wall of the outer conductor unit 10. Specifically, the annular end face of the microwave leakage prevention unit 40 can define an inverted L-shaped bent structure with the inner wall of the outer conductor unit 10, thereby effectively blocking microwaves and reducing microwave leakage by an order of magnitude.

[0066] In this embodiment, the microwave leakage prevention unit 40 may include an annular body 41, the inner side of which defines a central through hole 42 that mates with the fixing unit 20. At least a portion of the outer wall of the annular body 41 mates with the inner wall of the outer conductor unit 10, thereby forming good electrical contact.

[0067] In this embodiment, the outer wall of the microwave leakage prevention unit 40 is provided with a first insert structure 43. Correspondingly, the inner wall of the outer conductor unit 10 is provided with a second insert structure 114. The second insert structure 114 can cooperate with the first insert structure 43, and the microwave leakage prevention unit 40 and the outer conductor unit 10 can be fixed by the first insert structure 43 being inserted into the second insert structure 114. In this embodiment, the first insert structure 43 can be a first slot, and the second insert structure 114 can be a first protrusion, which can protrude from the inner side wall of the cylinder 11 and correspond to the first slot. In some other embodiments, the first insert structure 43 can also be a first protrusion, and the second insert structure 114 can also be a first slot.

[0068] In this embodiment, the inner wall of the microwave leakage prevention unit 40 is provided with a third insert structure 44, and correspondingly, the outer wall of the fixing unit 20 can be provided with a fourth insert structure 212. The third insert structure 44 can cooperate with the fourth insert structure 212 to fix the microwave leakage prevention unit 40 to the fixing unit 20. In this embodiment, the third insert structure 44 can be a second slot, and the fourth insert structure 212 can be a second protrusion. The second protrusion can protrude from the outer wall of the annular wall 21 and correspond to the second slot. In some other embodiments, the third insert structure 44 can also be a second protrusion, and the fourth insert structure 212 can be a second slot.

[0069] As can be seen from the table below, with the same input power, by setting the anti-microwave leakage unit 40, the microwave leakage from the opening 111 of the cavity 110 is reduced by several times (nearly 43 times). The beneficial effect is that it is not only more beneficial to the health of users, but also helps to pass the tests of professional institutions (such as EMC tests).

[0070]

[0071] Figures 9 to 11 illustrate a second embodiment of the aerosol generating device of the present invention. The difference between this embodiment and the first embodiment is that the microwave leakage prevention unit 40 includes a first annular body 41a and a second annular body 41b. Specifically, the annular body 41a may include both the first annular body 41a and the second annular body 41b, which are integrally formed. The first annular body 41a and the second annular body 41b are coaxially arranged, with the second annular body 41b disposed at one end of the first annular body 41a. The first annular body 41a and the second annular body 41b are bent into a stepped configuration, forming an inverted L-shaped bending structure. The first annular body 41a and the second annular body 41b can be circular, with the outer diameter of the first annular body 41a being larger than the outer diameter of the second annular body 41b. The outer wall of the first annular body 41a mates with the inner wall of the outer conductor unit 10. A gap is provided between the outer wall of the second annular body 41b and the inner wall of the outer conductor unit 10.

[0072] In this embodiment, the microwave leakage prevention unit may further include a first end face 411 and a second end face 412; wherein the first end face 411 may be disposed toward the opening 111, and the second end face 412 may be disposed opposite to the first end face 411, that is, toward the end wall 112. The first end face 411 and the second end face 412 may be annular planes.

[0073] Figure 12 shows a third embodiment of the aerosol generating device of the present invention. The difference between this embodiment and the second embodiment is that a gas guide column 115 protrudes from the outer wall of the outer conductor unit 10. An air guide channel 1151 communicating with the first air guide groove 211 is formed on the inner side of the gas guide column 115. A sealing structure 50 can be provided between the inner side of the gas guide column 115 and the outer wall of the fixing unit 20. A vent hole 51 can be formed on the sealing structure 50. The sealing structure 50 can be in close contact with the inner wall of the outer conductor unit 10 and the outer wall of the fixing unit 20. The vent hole 51 can communicate with the air guide channel 1151 and the first air guide groove 211.

[0074] In some other embodiments, the aerosol generating device may also include an airflow sensing device connected to the air guide channel 1151, and a temperature control component for regulating the heating temperature of the microwave heating component.

[0075] Figures 13 to 15 illustrate a fourth embodiment of the aerosol generating device of the present invention. The difference between this embodiment and the second embodiment is that the microwave leakage prevention unit 40 may further include a third annular body 41c. The third annular body 41c is disposed at the end of the second annular body 41b away from the first annular body 41a, and is bent into a stepped configuration with the second annular body 41b. The third annular body 41c may be integrally formed with the first annular body 41a and the second annular body 41b. The third annular body 41c may be circular, with an outer diameter larger than the outer diameter of the second annular body 41b and smaller than the outer diameter of the first annular body 41a. The distance between the third annular body 41c and the inner wall of the outer conductor unit 40 is smaller than the distance between the second annular body 41b and the inner wall of the outer conductor unit 10, resulting in multiple multi-segment bent structures forming inside the cavity 110.

[0076] Figure 16 illustrates a fourth embodiment of the aerosol generating apparatus of the present invention. The difference between this fourth and second embodiments is that a plurality of extending protrusions 41d may be provided on the second end face 412. These extending protrusions 41d may be spaced apart circumferentially along the second end face 412, and each extending protrusion 41d may extend toward the second end 10b. The side of the extending protrusion 41d away from the second end face 412 may be a plane.

[0077] Figure 17 shows a fifth embodiment of the aerosol generating device of the present invention, which differs from the fourth embodiment in that the end of the extended protrusion 41d away from the second end face 412 can be a pointed structure.

[0078] Figure 18 shows a sixth embodiment of the aerosol generating device of the present invention. The difference between this embodiment and the fourth embodiment is that the end of the extended protrusion 41d furthest from the second end face 412 can be curved. It is understood that the above embodiments only illustrate preferred embodiments of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can freely combine the above technical features and make several modifications and improvements without departing from the concept of the present invention; these all fall within the protection scope of the present invention. Therefore, all equivalent transformations and modifications made within the scope of the claims of the present invention should be covered by the claims of the present invention.

Claims

1. A microwave heating assembly, characterized by, include: The outer conductor unit (10) includes a first end (10a) and a second end (10b) disposed opposite to the first end (10a); the first end (10a) has an opening (111); a cavity (110) is disposed between the first end (10a) and the second end (10b), and the cavity (110) communicates with the opening (111); The microwave leakage prevention unit (40) is disposed in the cavity (110) and located at the opening (111), in contact with the inner wall of the outer conductor unit (10), and cooperates with the outer conductor unit (10) to prevent microwaves from leaking out from the opening (111).

2. The microwave heating assembly of claim 1, wherein, The microwave leakage prevention unit (40) includes a microwave absorption structure and forms a bending structure with the inner wall of the outer conductor unit (10); And / or, the microwave leakage prevention unit (40) includes an annular body (41), and at least part of the outer wall of the annular body (41) engages with the inner wall of the outer conductor unit (10).

3. The microwave heating assembly of claim 1, wherein, The outer conductor unit (10) is provided with a limiting step (113) on the inner side for limiting the installation of the microwave leakage prevention unit (40).

4. The microwave heating assembly of claim 1, wherein, The microwave leakage prevention unit (40) includes a first annular body (41a) and a second annular body (41b) disposed at one end of the first annular body (41a); the first annular body (41a) and the second annular body (41b) are bent into a stepped configuration; The outer wall of the first annular body (41a) mates with the inner wall of the outer conductor unit (10); A gap is provided between the outer wall of the second annular body (41b) and the inner wall of the outer conductor unit (10).

5. The microwave heating assembly of claim 4, wherein, The microwave leakage prevention unit (40) further includes a third ring (41c), which is disposed at the end of the second ring (41b) away from the first ring (41a) and is bent into a step with the second ring (41b). The distance between the third ring (41c) and the inner wall of the outer conductor unit (10) is less than the distance between the second ring (41b) and the inner wall of the outer conductor unit (10).

6. The microwave heating assembly of claim 1, wherein, The microwave leakage prevention unit (40) further includes a first end face (411) facing the opening (111) and a second end face (412) facing away from the first end face (411); the second end face (412) is provided with a plurality of extending protrusions (41d); the plurality of extending protrusions (41d) are arranged circumferentially at intervals along the second end face (412), and each of the extending protrusions (41d) extends toward the second end (10b).

7. The microwave heating assembly of claim 1, wherein, The outer wall of the microwave leakage prevention unit (40) is provided with a first insert structure (43). The inner wall of the outer conductor unit (10) is provided with a second insert structure (114) that cooperates with the first insert structure (43). The first card insertion structure (43) includes a first card slot, and the second card insertion structure (114) includes a first card protrusion that cooperates with the first card slot; or, the first card insertion structure (43) includes a first card protrusion, and the second card insertion structure (114) includes a first card slot that cooperates with the first card protrusion.

8. The microwave heating assembly of claim 1, wherein, The microwave heating assembly further includes an inner conductor unit (30), which includes a microwave radiation structure that extends between the first end (10a) and the second end (10b) and is connected to the outer conductor unit (10). And / or, the outer conductor unit (10) includes a hollow cylindrical body (11), with the first end (10a) and the second end (10b) disposed axially on the cylindrical body (11).

9. The microwave heating assembly of claim 8, wherein, It also includes a fixing unit (20) disposed in the cavity (110), and a receiving cavity (23) is formed inside the fixing unit (20); The inner conductor unit (30) extends at least partially into the accommodating cavity (23); The microwave leakage prevention unit (40) is sleeved on the outer periphery of the fixing unit (20).

10. The microwave heating assembly of claim 9, wherein, The inner wall of the microwave leakage prevention unit (40) is provided with a third insert structure (44). The outer wall of the fixing unit (20) is provided with a fourth insert structure (212) that cooperates with the third insert structure (44). The third card insertion structure (44) includes a second card slot, and the fourth card insertion structure (212) includes a second card protrusion that cooperates with the second card slot; or, the third card insertion structure (44) includes a second card protrusion, and the fourth card insertion structure (212) includes a second card slot that cooperates with the second card protrusion.

11. An aerosol generating device, characterized by, It includes a microwave heating assembly as described in any one of claims 1 to 10, a microwave feed unit connected to the inner conductor unit (30) of the microwave heating assembly, and a microwave generating unit connected to the microwave feed unit.

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