Aerosol generating device and microwave heating assembly thereof

Abstract

An aerosol generating device and a microwave heating assembly (100, 100a, 100b) thereof, the microwave heating assembly (100, 100a, 100b) comprising: a microwave heating body unit (1, 1a) comprising a cylindrical outer conductor unit (11, 11a), an inner conductor unit (12, 12a) disposed in the outer conductor unit (11, 11a), and feed-in holes (14, 14a, 14b) communicating the interior of the outer conductor unit (11, 11a) with the outside; a radio frequency board (3); the microwave feed-in unit (2, 2b) comprises an inner conductor (22, 22b), the inner conductor (22, 22b) is arranged in the feed-in hole (14, 14a, 14b) and comprises a feed-in end (2221) and an access end (2211), the feed-in end (2221) is in ohmic contact with the inner side of the outer conductor unit (11, 11a) or the inner conductor unit (12, 12a), and the access end (2211) is in ohmic contact with the radio frequency board (3); the two ends of the inner conductors (22 and 22b) are directly connected with the radio frequency plate (3) and the microwave heating upper body units (1 and 1a) respectively, so that the number of parts of a radio frequency connector assembly is reduced, the cost is reduced, and the connection reliability between the microwave heating main body units (1 and 1a) and the radio frequency plate (3) is improved.

Description

Technical Field

[0001] This utility model relates to the field of aerosol generation technology, and in particular to an aerosol generating device and its microwave heating component. Background Technology

[0002] In related technologies, aerosol-generating products are produced by generating aerosols using a microwave-heated aerosol generating device. This microwave-heated aerosol generating device typically includes a microwave feed unit and a microwave heating main unit and an radio frequency board connected to the microwave feed unit.

[0003] The microwave feed unit is typically an RF connector assembly, which includes a male RF terminal and a female RF terminal. By embedding the female RF terminal on the microwave heating main unit and soldering the male RF terminal to the RF board, and then connecting the male and female RF terminals, a good connection between the microwave heating main unit and the RF board is achieved.

[0004] However, the RF connector assemblies of the relevant technologies have at least the following drawbacks:

[0005] 1. There are two types of RF terminals: male and female. Connecting them is inconvenient, the assembly time is relatively long, the reliability is relatively low, and insertion loss will increase.

[0006] 2. RF terminals are more expensive, and the cost is relatively higher due to the existence of two types of RF terminals. Utility Model Content

[0007] The technical problem to be solved by this utility model is to provide an improved aerosol generating device and its microwave heating component.

[0008] The technical solution adopted by this utility model to solve its technical problem is: to construct a microwave heating component for an aerosol generating device, comprising:

[0009] The microwave heating main unit includes:

[0010] A cylindrical outer conductor unit, an inner conductor unit disposed within the outer conductor unit, and a feed hole connecting the interior of the outer conductor unit to the outside;

[0011] RF board; and

[0012] A microwave feed unit, comprising:

[0013] An inner conductor is disposed in the feed hole and includes a feed end and an access end. The feed end is in ohmic contact with the inner side of the outer conductor unit or the inner conductor unit, and the access end is in ohmic contact with the radio frequency board.

[0014] In some embodiments, the microwave feed unit further includes a connecting conductor disposed around the feed hole opening and protruding outward; the microwave heating main unit is connected to the radio frequency board through the connecting conductor.

[0015] In some embodiments, the microwave feed unit further includes an outer conductor; the outer conductor includes:

[0016] The mounting portion includes opposing first and second surfaces, and a first through-hole penetrating the first and second surfaces; the first surface is relatively far from the outer conductor unit; the connecting conductor is attached to the first surface;

[0017] The insert is cylindrical and is inserted into the feed hole; one end of the insert adjacent to the mounting part is coupled to the second surface, and the hollow channel of the insert is connected to the first through hole.

[0018] In some embodiments, the connecting conductor is integrally bonded to the first surface; or, the connecting conductor is in ohmic contact with the first surface.

[0019] In some embodiments, the connecting conductors include at least one pair, symmetrically distributed on opposite sides of the opening of the first through hole.

[0020] In some embodiments, the outer conductor further includes a latching portion disposed on the outer periphery of the embedding portion, the latching portion engaging with the inner wall surface of the feed hole, and the latching portion making ohmic contact with the outer conductor unit.

[0021] In some embodiments, the snap-fit ​​portion includes a snap ring fitted around the periphery of the insert portion.

[0022] In some embodiments, the feed hole includes:

[0023] The first hole segment is adjacent to the inner conductor unit, and the inner diameter of the first hole segment is adapted to the outer diameter of the embedded part;

[0024] The second hole section is coaxially connected to the first hole section, and its inner diameter is larger than that of the first hole section; the inner wall shape of the second hole section is adapted to the buckle part.

[0025] In some embodiments, the microwave feed unit further includes a dielectric layer between the outer conductor and the inner conductor, the dielectric layer being disposed in the via and / or the hollow channel.

[0026] In some embodiments, the inner conductor has a needle-like structure in the shape of a straight line, which is coaxially disposed in the first through hole and the hollow channel.

[0027] In some embodiments, the access terminal extends beyond the first through hole and is flush with the surface of the connecting conductor away from the microwave heating main unit.

[0028] In some embodiments, the feed point of the radio frequency board has a first distance from the first surface, and the size of the first distance is not less than 0.5 mm;

[0029] Furthermore, there is a second gap between the feed point of the RF board and the wall surface of the connecting conductor facing the inner conductor, the size of the second gap being not less than 0.5 mm.

[0030] In some embodiments, the connecting conductor is integrally bonded to the outer surface of the microwave heating main unit, or the connecting conductor is in ohmic contact with the outer surface of the microwave heating main unit.

[0031] In some embodiments, the connecting conductors include at least one pair, symmetrically distributed on opposite sides of the feed hole opening.

[0032] In some embodiments, the inner wall surface of the feed hole forms a cylindrical channel.

[0033] In some embodiments, the microwave feed unit further includes a dielectric layer disposed in the feed hole, the outer diameter of the dielectric layer being adapted to the aperture of the feed hole, and the dielectric layer being located between the inner wall surface of the feed hole and the outer wall surface of the inner conductor.

[0034] In some embodiments, the inner conductor has a needle-like structure in the shape of a straight line, which is coaxial with the feed hole.

[0035] In some embodiments, the access terminal extends beyond the feed hole and is flush with the surface of the connecting conductor away from the microwave heating main unit.

[0036] In some embodiments, there is a third distance between the feed point of the radio frequency board and the outer surface of the microwave heating main unit, the size of the third distance being not less than 0.5 mm;

[0037] Furthermore, there is a fourth gap between the feed point of the RF board and the wall surface of the connecting conductor facing the inner conductor, the size of the fourth gap being not less than 0.5 mm.

[0038] In some embodiments, the connecting conductor further includes a recess along its wall facing the inner conductor, the recess being formed at a position relative to the inner conductor on the wall facing the inner conductor.

[0039] In some embodiments, the outer conductor unit is cylindrical and includes a first end, a second end, and a cavity between the first end and the second end;

[0040] The inner conductor unit is coaxially disposed in the cavity, and includes a first fixed end and a first free end. The first fixed end is connected to the second end, and the first free end extends toward the first end.

[0041] In some embodiments, the outer conductor unit includes a cylindrical conductor sidewall, the conductor sidewall including a first open end and a second open end opposite each other.

[0042] In some embodiments, the inner conductor unit includes:

[0043] The conductor post includes a second fixed end and a second free end; the second fixed end is coaxially connected to the inside of the outer conductor unit, and the second free end extends toward the first open end.

[0044] In some embodiments, the outer conductor unit further includes a conductor end wall, which is integrally sealed to the second opening end;

[0045] The conductor post includes a first post portion and a second post portion coaxially connected, the second post portion being embedded in the conductor end wall and in ohmic contact with the conductor end wall; the first post portion extends from one end of the second post portion adjacent to the first opening end toward the first opening end.

[0046] In some embodiments, the conductor sidewall includes a first cylindrical segment and a second cylindrical segment coaxially connected, the first cylindrical segment being relatively far from the second end of the outer conductor unit, and the inner diameter of the first cylindrical segment being smaller than the inner diameter of the second cylindrical segment;

[0047] The conductor post includes a third post and a fourth post connected coaxially. The fourth post is embedded in the second cylindrical section, and the outer surface of the fourth post is in contact with the inner wall of the second cylindrical section and makes ohmic contact with the second cylindrical section. The diameter of the third post is smaller than the diameter of the first cylindrical section, and it is located in the first cylindrical section.

[0048] In some embodiments, the microwave heating main unit further includes a pin for fixing the fourth column to the second cylindrical section; the pin passes through the outer peripheral sidewall of the second cylindrical section and is inserted into the fourth column.

[0049] In some embodiments, the second cylindrical section is provided with a second protrusion for limiting the fourth column to be embedded in the circumferential direction, the second protrusion protruding inward along the inner wall of the second cylindrical section; the fourth column is provided with a through groove that cooperates with the second protrusion and is recessed inward along the outer peripheral sidewall of the fourth column.

[0050] In some embodiments, a first protrusion that protrudes radially outward is provided on the conductor sidewall near the second opening end;

[0051] The feed hole radially penetrates the conductor sidewall and the first protrusion, and is formed in the conductor sidewall and the first protrusion.

[0052] In some embodiments, the feed hole extends through the conductor end wall in a direction parallel to the axial direction of the outer conductor unit and is formed on the conductor end wall.

[0053] In some embodiments, the feed hole extends through the fourth post in a direction parallel to the axial direction of the outer conductor unit and is formed in the fourth post.

[0054] In some embodiments, the outer peripheral wall of the conductor post is provided with a first insertion hole extending radially therefrom, the first insertion hole being opposite to the feed hole;

[0055] The feed end is inserted into the first socket and makes ohmic contact with the conductor post.

[0056] In some embodiments, the inner conductor unit further includes an extension coupled to the outer surface of the conductor post, the extension extending outward in a direction perpendicular to the axial direction of the conductor post and making ohmic contact with the feed end.

[0057] In some embodiments, the extension is provided with a second insertion hole for the feed end to be inserted, the opening of the second insertion hole being opposite to the feed hole.

[0058] In some embodiments, the inner conductor unit further includes:

[0059] A conductor disk is coaxially connected to the second free end, and the diameter of the conductor disk is larger than the diameter of the conductor post and smaller than the inner diameter of the cavity.

[0060] In some embodiments, the inner conductor unit further includes:

[0061] The probe device is longitudinally elongated, with one end embedded in the conductor disk and the other end extending toward the first opening.

[0062] In some embodiments, the microwave heating assembly further includes a receiving seat mounted on the first open end, the receiving seat including a receiving portion for receiving the aerosol-generated article, the receiving portion being located within the cavity.

[0063] This invention also provides an aerosol generating device, including a battery assembly and the aforementioned microwave heating assembly, wherein the battery assembly is electrically connected to the radio frequency board.

[0064] The present invention has the following advantages: by directly connecting the two ends of the inner conductor to the radio frequency board and the microwave heating main unit respectively, the present invention reduces the number of components of the radio frequency connector assembly, reduces costs, and improves the connection reliability between the microwave heating main unit and the radio frequency board. Attached Figure Description

[0065] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0066] Figure 1 This is a schematic diagram of the structure of the microwave heating component with the radio frequency board disassembled in Embodiment 1 of this utility model;

[0067] Figure 2 This is a longitudinal structural cross-sectional view of the microwave heating assembly in Embodiment 1 of this utility model;

[0068] Figure 3 This is a longitudinal structural cross-sectional view of the microwave heating main unit in the disassembled state in Embodiment 1 of this utility model;

[0069] Figure 4 This is a schematic diagram of the microwave feed unit in Embodiment 1 of this utility model;

[0070] Figure 5 yes Figure 4 The longitudinal structural cross-sectional view of the microwave feed unit shown.

[0071] Figure 6 yes Figure 4 The microwave feed unit shown is a longitudinal structural cross-sectional view in its decomposed state.

[0072] Figure 7 This is a schematic diagram of the structure of the microwave heating main unit and the microwave feeding unit in the combined state in Embodiment 2 of this utility model;

[0073] Figure 8 yes Figure 7 A longitudinal structural cross-sectional view of the microwave heating main unit and the microwave feed unit in the combined state shown.

[0074] Figure 9 This is a longitudinal structural cross-sectional view of the microwave heating main unit in the disassembled state in Embodiment 2 of this utility model;

[0075] Figure 10 This is a schematic diagram of the inner conductor unit in Embodiment 2 of this utility model;

[0076] Figure 11 This is a schematic diagram of the structure of the microwave heating component with the radio frequency board disassembled in Embodiment 3 of this utility model;

[0077] Figure 12This is a schematic diagram of the combined structure of the microwave heating main unit and the microwave feed unit in the combined state in Embodiment 3 of this utility model;

[0078] Figure 13 yes Figure 12 A longitudinal structural cross-sectional view of the microwave heating main unit and the microwave feed unit in the combined state shown.

[0079] Figure 14 yes Figure 12 The diagram shows a longitudinal structural cross-sectional view of the microwave heating main unit and the microwave feed unit in an exploded state.

[0080] Reference numerals: First microwave heating component 100;

[0081] First microwave heating main unit 1; First microwave feed unit 2; Radio frequency board 3;

[0082] First outer conductor unit 11; First inner conductor unit 12; First receiving seat 13; First feed hole 14; First end 111; Second end 112; First conductor sidewall 113; First conductor endwall 114; First cavity 115; First protrusion 116; Sixth side 1161; Mounting hole 117; First conductor post 121; First conductor disk 122; First probe device 123; First post portion 1211; Second post portion 1212; First insertion hole 1213; First receiving portion 131; First fixing portion 132; Positioning rib 133; Support rib 134; Air inlet gap 135; Receiving cavity 1311; Second through hole 1321; First hole segment 141; Second hole segment 142; First slot 143;

[0083] First outer conductor 21; First inner conductor 22; First dielectric layer 23; First connecting conductor 24; Mounting part 211; Embedding part 212; Snap-on part 213; First surface 2111; Second surface 2112; First through hole 2113; First pin segment 221; Second pin segment 222; Access end 2211; Feeding end 2221; First side surface 241; Second side surface 242;

[0084] Second microwave heating component 100a;

[0085] Second microwave heating main unit 1a;

[0086] Second outer conductor unit 11a; second inner conductor unit 12a; second receiving seat 13a; second feed hole 14a; second conductor sidewall 113a; through hole 118a; second protrusion 119a; second cavity 115a; first cylindrical section 1131a; second cylindrical section 1132a; stepped surface 1133a; second conductor post 121a; second conductor disk 122a; second probe device 123a; third post 1211a; fourth post 1212a; second insertion hole 1213a; extension 1214a; through groove 1215a;

[0087] Third microwave heating component 100b;

[0088] Second microwave feed unit 2b; third feed hole 14b; second connecting conductor 24b; second inner conductor 22b; second dielectric layer 23b; third side 241b; fourth side 242b; fifth side 243b; clearance part 2431b; third pin segment 221a; fourth pin segment 222a. Detailed Implementation

[0089] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the orientations or positional relationships indicated by terms such as "front," "rear," "upper," "lower," "left," "right," "longitudinal," "horizontal," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," and "tail" are based on the orientations 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 this technical solution and do not indicate that the device or component referred to must have a specific orientation; therefore, they should not be construed as limitations on this utility model.

[0090] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," "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 utility model can be understood according to the specific circumstances.

[0091] In the following description, specific details such as particular system structures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of the present invention. However, those skilled in the art will understand that the present invention can be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0092] This invention provides an aerosol generating device that utilizes microwave heating to atomize an aerosol-generating product, thereby producing an aerosol for inhalation or exhalation by a user. In some embodiments, the aerosol-generating product is a solid aerosol-generating product, such as a processed plant leaf product. It is understood that in other embodiments, the aerosol-generating product may also be a liquid aerosol-generating product.

[0093] See also Figure 1 In embodiment 1, the aerosol generating device may include a first microwave heating assembly 100 and a battery assembly (not shown). The first microwave heating assembly 100 includes a first microwave heating main unit 1, a first microwave feed unit 2, and a radio frequency board 3. In this embodiment, the battery assembly provides power to the radio frequency board 3, which generates microwaves and feeds them into the first microwave heating main unit 1 through the first microwave feed unit 2, thereby forming a microwave field within the first microwave heating main unit 1. This microwave field can act on the aerosol generating product, thereby achieving microwave heating.

[0094] like Figure 1As shown, the first microwave heating main unit 1 is generally cylindrical in shape. However, the first microwave heating main unit 1 is not limited to a cylindrical shape; it can also be square, elliptical, or other shapes. The first microwave heating main unit 1 may include a first outer conductor unit 11, a first inner conductor unit 12, and a first receiving base 13. It also includes a first feed hole 14 (see reference) connecting the interior of the first outer conductor unit 11 to the outside environment (the outside environment refers to the external environment of the first microwave heating main unit 1). Figure 2 ).

[0095] like Figure 2 As shown, the first outer conductor unit 11 is cylindrical, having a first end 111 and a second end 112 opposite to each other. A first inner conductor unit 12 is coaxially disposed inside the first outer conductor unit 11, used to adjust the resonant frequency and microwave distribution inside the first outer conductor unit 11. One end (first fixed end) of the first inner conductor unit 12 is connected to the second end 112 of the first outer conductor unit 11, forming a short-circuit terminal of the first microwave heating main body unit 1; the other end (first free end) of the first inner conductor unit 12 extends toward the first end 111 of the first outer conductor unit 11, and does not contact the inner wall surface of the first outer conductor unit 11, forming an open-circuit terminal of the first microwave heating main body unit 1. A first receiving base 13 is detachably installed at the first end 111 of the first outer conductor unit 11, and part of its structure is disposed inside the first outer conductor unit 11, defining a receiving cavity 1311 inside the first outer conductor unit 11 for accommodating the lower structure of the aerosol-generated article. This receiving cavity 1311 is located in the region where the microwave field is mainly formed.

[0096] In this embodiment, the first outer conductor unit 11 can be integrally made of a conductive metal material, preferably an aluminum alloy or copper. However, the first outer conductor unit 11 is not limited to being integrally made of a conductive material; it can also be achieved by depositing a first conductive coating on the inner wall of a non-conductive cylinder. The material used to form the first conductive coating can include gold, silver, or conductive metal oxides, etc. Preferably, the first conductive coating is a silver coating or a gold coating.

[0097] like Figure 2 and Figure 3As shown, the first outer conductor unit 11 may include a conductive first conductor sidewall 113 and a first conductor endwall 114. The first conductor sidewall 113 may be cylindrical, including a first open end and a second open end disposed opposite to each other. The first conductor endwall 114 is integrally closed on the second open end, forming the closed end of the first outer conductor unit 11 (the second end 112 of the first outer conductor unit 11); while the first open end forms the open end of the first outer conductor unit 11 (the first end 111 of the first outer conductor unit 11). The first conductor endwall 114 and the first conductor sidewall 113 together define a first cavity 115, which is a semi-closed cylindrical channel. An aerosol generating article may extend into the first cavity 115 from the first open end.

[0098] An axially penetrating mounting hole 117 is also provided on the first conductor end wall 114, which is used to install the bottom end of the first inner conductor unit 12.

[0099] The first outer conductor unit 11 also includes a first bump 116, which is rectangular and protrudes radially outward from the first conductor sidewall 113 near the second opening end, and is integrally formed on the outer peripheral wall surface of the first conductor sidewall 113. The first bump 116 includes a sixth side surface 1161 away from the first conductor sidewall 113, which faces the radio frequency board 3.

[0100] like Figure 3 As shown, the first feed hole 14 is used to embed the first microwave feed unit 2 therein. The first feed hole 14 radially penetrates the first protrusion 116 and the first conductor sidewall 113, and its opening is formed on the inner peripheral wall of the first conductor sidewall 113 and the sixth sidewall 1161 of the first protrusion 116, respectively.

[0101] like Figure 3 As shown, the first inner conductor unit 12 may include a first conductor post 121, a first conductor disk 122 disposed above the first conductor post 121, and a first probe device 123 with one end embedded in the first conductor disk 122 and the first conductor post 121. Preferably, the axes of the first conductor post 121, the first conductor disk 122, the first probe device 123, and the first outer conductor unit 11 coincide with each other. Understandably, the fed microwaves are conducted through the first conductor post 121 and the first conductor disk 122 to the first probe device 123, forming a microwave field around the first probe device 123.

[0102] In this embodiment, the first conductor post 121 can be integrally made of a conductive metal material, preferably aluminum alloy or copper. Of course, the first conductor post 121 is not limited to being integrally made of a conductive material; it can also be achieved by depositing a second conductive coating on the outer surface of a non-conductive material. The second conductive coating is preferably a silver or gold coating.

[0103] The first conductor post 121 is a stepped cylindrical shape. Understandably, the first conductor post 121 is not limited to a cylindrical shape; it can also be a square column, an elliptical column, an irregular column, or other shapes. The first conductor post 121 may include an integrally connected first post portion 1211 and a second post portion 1212. The bottom end (second fixed end) of the second post portion 1212 is coaxially fitted into the mounting hole 117 of the first conductor end wall 114 and makes ohmic contact with the first conductor end wall 114. The diameter of the first post portion 1211 is larger than the diameter of the second post portion 1212, and the first post portion 1211 extends from the top end of the second post portion 1212 towards the first open end. The top end (second free end) of the first post portion 1211 is located below the first receiving seat 13.

[0104] A first insertion hole 1213 extending radially inward is provided on the outer peripheral wall of the first column portion 1211. This first insertion hole 1213 is a blind hole with its opening facing the first feed hole 14, used to insert one end of the first inner conductor 22 of the first microwave feed unit 2, thereby forming a reliable and good ohmic contact between the first inner conductor 22 and the first conductor post 121. Of course, this first insertion hole 1213 is not a necessary component in this embodiment; it is used as an optional solution. The first insertion hole 1213 is used to make the connection between the first inner conductor 22 and the first conductor post 121 more reliable. Without the first insertion hole 1213, one end of the first inner conductor 22 of the first microwave feed unit 2 can directly abut against the outer peripheral wall of the first column portion 1211, forming an ohmic contact.

[0105] In this embodiment, the first conductor disk 122 can be integrally made of a conductive metal material, preferably aluminum alloy or copper. Of course, the first conductor disk 122 is not limited to being integrally made of a conductive material; it can also be achieved by plating a third conductive coating onto the outer surface of a non-conductive material. The third conductive coating is preferably a silver or gold coating.

[0106] The first conductor disk 122 is disc-shaped, with a diameter larger than the diameter of the first pillar portion 1211 of the first conductor post 121 and smaller than the inner diameter of the first outer conductor unit 11. The first conductor disk 122 is integrally attached to the top of the first pillar portion 1211. Alternatively, the first conductor disk 122 can be soldered to the top of the first pillar portion 1211 and make ohmic contact with it. Understandably, the first conductor disk 122 is not a necessary component in this embodiment; it is used as an optional solution. The first conductor disk 122 can increase its own inductance and capacitance, and lower the resonant frequency, thereby facilitating further reduction in the size of the first cavity 115. Even without the first conductor disk 122, microwave heating can still be achieved through the first conductor post 121 and the first probe device 123, one end of which is embedded in the first conductor post 121.

[0107] In this embodiment, the first probe device 123 may include a first probe for adjusting the microwave field distribution and microwave feed frequency. The first probe is elongated, and its lower part is fixedly or detachably embedded in the first conductor disk 122 and the first conductor post 121, forming good ohmic contact with the first conductor disk 122 and the first conductor post 121; the upper end of the first probe extends upward and into the receiving cavity 1311.

[0108] Preferably, the shape of the upper end of the first probe may be one of a plane, a sphere, an ellipsoid, a cone, or a frustum; a frustum shape (not shown) is preferred because it can enhance the local field strength, thereby accelerating the atomization speed of the aerosol product.

[0109] Optionally, the first probe may be integrally made of a conductive metal material, preferably stainless steel, aluminum alloy, or copper. Of course, the first probe is not limited to being integrally made of a conductive material; it can also be achieved by depositing a fourth conductive coating on the outer surface of a non-conductive material. The fourth conductive coating is preferably a silver or gold coating.

[0110] The first probe device 123 may further include a temperature sensing element (not shown) disposed within the first probe, which is used to monitor the internal temperature of the aerosol-generating article disposed in the first housing 13. Understandably, the probe may be a solid structure when temperature measurement is not required, and a hollow probe when temperature measurement is required.

[0111] like Figure 3 As shown, the first receiving seat 13 may include a first receiving portion 131 and a first fixing portion 132 integrally connected to the first receiving portion 131. The first receiving portion 131 is used to define the aforementioned receiving cavity 1311; the first fixing portion 132 is used to axially block the first opening end of the first conductor sidewall 113 and allow the first receiving portion 131 to extend into the first cavity 115.

[0112] The first receiving portion 131 may be cylindrical, and its outer diameter may be smaller than the inner diameter of the first conductor sidewall 113. The first receiving portion 131 defines an axial receiving cavity 1311. The first fixing portion 132 may be annular and coaxially connected to the first receiving portion 131. The first fixing portion 132 may coaxially seal the first opening end of the first conductor sidewall 113. The first fixing portion 132 includes an axial second through hole 1321 that connects the receiving cavity 1311 to the outside, through which the aerosol generating article can be inserted into the receiving cavity 1311.

[0113] Preferably, the first receiving seat 13 further includes a plurality of longitudinally elongated positioning ribs 133. These positioning ribs 133 are evenly spaced and arranged circumferentially on the wall surface of the receiving cavity 1311 and / or the second through hole 1321. Each positioning rib 133 extends along a direction parallel to the axis of the first receiving seat 13. These positioning ribs 133 can be used to clamp the aerosol generating article inserted into the receiving cavity 1311 and / or the through hole, and in another aspect, a longitudinally extending air intake channel is formed between each pair of adjacent positioning ribs 133 to facilitate the intake of ambient air into the bottom of the aerosol generating article, and then into the aerosol generating article to carry away the aerosol generated by microwave heating.

[0114] Preferably, an air inlet gap 135 may be provided below the receiving cavity 1311 to prevent the bottom end face of the aerosol generating article from being completely covered, resulting in obstructed airflow. In this embodiment, the first receiving part 131 includes an inner end face that abuts against the bottom end face of the aerosol generating article, and the inner end face is provided with evenly spaced radially distributed support ribs 134. On the one hand, the inner end face supports the aerosol generating article by means of these support ribs 134; on the other hand, these support ribs 134 form a plurality of radially arranged second air inlet channels (i.e., air inlet gaps 135). These second air inlet channels are respectively connected to these first air inlet channels to facilitate the intake of ambient air into the bottom of the aerosol generating article, and then into the aerosol generating article to carry away the aerosol generated by microwave heating.

[0115] Optionally, the first housing 13 may be made of a high-temperature resistant material with low dielectric loss to reduce the proportion of microwave energy absorbed by the first housing 13 and improve the heating (carbonization) effect of the aerosol-generated product.

[0116] In this embodiment, the radio frequency board 3 can be arranged circumferentially in the first microwave heating main body unit 1. The radio frequency board 3 may include a microstrip (not shown), a feed point (not shown) connected to the microstrip, and a pair of pads (not shown) located around the feed point. The pair of pads are symmetrically distributed on opposite sides of the feed point. It should be noted that the radio frequency board 3 is prior art, and its specific structure can be referred to in the prior art, and will not be described in detail here.

[0117] like Figure 4 As shown, the first microwave feed unit 2 can be a coaxial connector, which is inserted from the first feed hole 14 and partially embedded in the first feed hole 14. The first microwave feed unit 2 includes a first outer conductor 21, a first inner conductor 22, a first dielectric layer 23, and a pair of first connecting conductors 24.

[0118] In this embodiment, such as Figures 4 to 6 As shown, the first outer conductor 21 includes a mounting portion 211, an insert portion 212, and a snap-fit ​​portion 213. The mounting portion 211 is a rectangular sheet structure located between the opening of the first feed hole 14 away from the first inner conductor unit 12 and the first connecting conductor 24. The mounting portion 211 includes opposing first surfaces 2111 and second surfaces 2112, and a first through hole 2113 penetrating both surfaces. The first surface 2111 is relatively away from the first outer conductor unit 11. The insert portion 212 is cylindrical and is inserted into the first feed hole 14. One end of the insert portion 212 adjacent to the mounting portion 211 is connected to the second surface 2112 of the mounting portion 211, and the hollow channel of the insert portion 212 communicates with the first through hole 2113. The snap-fit ​​portion 213 may include an annular retaining ring, which is sleeved on the outer periphery of the insert portion 212. When the insert portion 212 is disposed in the first feed hole 14, the retaining ring can engage with the inner wall surface of the first feed hole 14 so that a good and reliable ohmic contact is formed between the first outer conductor 21 and the first outer conductor unit 11.

[0119] Understandably, the aforementioned first feed hole 14 may include a first hole segment 141 and a second hole segment 142 coaxially connected. The first hole segment 141 is adjacent to the first inner conductor unit 12, and the diameter of the first hole segment 141 is adapted to the outer diameter of the fitting portion 212. The outer wall surface of the fitting portion 212 can fit against the inner wall surface of the first hole segment 141. The inner diameter of the second hole segment 142 is larger than that of the first hole segment 141, and the shape of the inner wall of the second hole segment 142 is adapted to the shape of the retaining ring. In this embodiment, the inner wall surface of the second hole segment 142 forms a circumferential first retaining groove 143, and the first microwave feed unit 2 is engaged in the first retaining groove 143 by its retaining portion 213, so as to be reliably fixed in the first feed hole 14.

[0120] Preferably, in order to prevent the first outer conductor 21 and the connecting conductor from interfering with the radio frequency signal at the feed point, a first gap needs to be maintained between the feed point of the radio frequency board 3 and the first surface 2111 of the mounting part 211, and the size of the first gap is not less than 0.5mm.

[0121] like Figure 4 As shown, the pair of first connecting conductors 24 are symmetrically distributed on opposite sides of the periphery of the first through hole 2113, with their symmetry line parallel to the axis of the first outer conductor unit 11. Furthermore, the projected edge of the pair of first connecting conductors 24 on the first surface 2111 adjacent to the first through hole 2113 is tangent to the edge of the opening of the first through hole 2113. Preferably, the first connecting conductors 24 have a square sheet structure, including opposing first side surfaces 241 and second side surfaces 242. The first side surface 241 is relatively far from the first outer conductor unit 11 and is used for soldering to the pads of the RF board 3. The second side surface 242 is integrally integrated into the first surface 2111 of the mounting portion 211. It can be understood that by soldering the pair of first connecting conductors 24 to the pads of the RF board 3, the RF board 3 and the first microwave heating main unit 1 can be connected. The shape of the first connecting conductors 24 is adapted to the shape of the pads, and their number corresponds to the number of pads.

[0122] Preferably, in order to prevent the first outer conductor 21 and the connecting conductor from interfering with the radio frequency signal at the feed point, a second gap needs to be maintained between the feed point of the radio frequency board 3 and the wall surface of the first connecting conductor 24 facing the first inner conductor 22, and the size of the second gap is not less than 0.5 mm.

[0123] like Figure 2 , Figure 4 and Figure 6 As shown, the first inner conductor 22 is partially disposed within the first outer conductor 21. The first inner conductor 22 has a needle-like structure and may include a first needle segment 221 and a second needle segment 222 coaxially integrally connected to the first needle segment 221. The first needle segment 221 is relatively far from the first outer conductor unit 11, and its end far from the second needle segment 222 is an access end 2211, which extends out of the first through hole 2113 to contact the feed point of the RF board 3; the diameter of the access end 2211 is adapted to the diameter of the feed point, and it is located outside the first through hole 2113 and flush with the first side surface 241 of the first connecting conductor 24. The diameter of the second needle segment 222 is larger than that of the first needle segment 221. The end of the second needle segment 222 away from the first needle segment 221 is the feed end 2221, which is used to extend into the first cavity 115 and into the first socket 1213 of the first inner conductor unit 12, and abut against the inner wall surface of the first socket 1213 to make ohmic contact with the first inner conductor unit 12.

[0124] Understandably, the first inner conductor 22 is not limited to being in a straight line shape. In other embodiments, the first inner conductor 22 may also be L-shaped (not shown), comprising a first segment perpendicular to the axis of the first outer conductor unit 11 and a second segment parallel to the axis of the first outer conductor unit 11. The first segment and the second segment are integrally connected, with the end of the first segment away from the second segment (access end 2211) connected to the feed point of the RF board 3, while the end of the second segment away from the first segment (feed-in end 2221) is in ohmic contact with the inner wall surface of the first outer conductor unit 11 (e.g., the inner wall surface of the first conductor end wall 114).

[0125] The first dielectric layer 23 may include a pair of insulators, both of which have an arc-shaped structure. The pair of insulators are located between the first outer conductor 21 and the first inner conductor 22, and are symmetrically arranged around the first inner conductor 22, with their concave sides facing the outer peripheral surface of the first inner conductor 22.

[0126] Understandably, in Embodiment 1, by utilizing the characteristic that the first outer conductor unit 11 is made of a conductive metal material or coated with a first conductive coating on the inner wall of a non-conductive cylinder, a first feed hole 14 is opened on the first outer conductor unit 11 (it should be noted that the specific opening size conforms to the RF connector design specifications / impedance matching specifications). Part of the structure of the RF connector assembly is transferred to the first outer conductor unit 11, giving it the function of an RF connector outer conductor. Simultaneously, the improved male RF terminal (i.e., the first microwave feed unit 2) can be directly embedded in the first feed hole 14, with one end directly soldered to the pad of the RF board 3 and the other end directly in ohmic contact with the first microwave heating main unit 1, eliminating the need for a female RF terminal assembly connection and thus omitting the female RF terminal. This structure not only simplifies the structure and reduces the size of the RF connector assembly, facilitating the miniaturization design of the aerosol generation device, but also reduces costs. Furthermore, it can improve assembly speed, enhance connection reliability, and reduce insertion loss.

[0127] Please refer to them again. Figure 7 As shown in the figure, the second microwave heating component 100a in Embodiment 2 of this utility model is an improvement made on the basis of Embodiment 1. The difference between it and the first microwave heating component 100 in Embodiment 1 is that the first microwave heating main unit 1 in Embodiment 1 is replaced by the second microwave heating main unit 1a.

[0128] like Figure 7 and Figure 8 As shown, the second microwave heating main body unit 1a is generally cylindrical in shape. It may include a second outer conductor unit 11a, a second inner conductor unit 12a and a second receiving base 13a, and also includes a second feed hole 14a that connects the interior of the second outer conductor unit 11a and the outside.

[0129] In this embodiment, the second outer conductor unit 11a is generally in the shape of a stepped cylinder, which can be integrally made of a conductive metal material or achieved by coating the inner wall of a non-conductive cylinder with a first conductive coating. Figure 9 As shown, the second outer conductor unit 11a may include a conductive second conductor sidewall 113a. The second conductor sidewall 113a may be cylindrical, comprising a first cylindrical section 1131a and a second cylindrical section 1132a that are longitudinally connected. The first cylindrical section 1131a is located above the second cylindrical section 1132a, and the upper end of the first cylindrical section 1131a is an open structure. The lower end of the first cylindrical section 1131a is integrally connected to the upper end of the second cylindrical section 1132a. The lower end of the second cylindrical section 1132a is also an open structure, and the inner diameter of the second cylindrical section 1132a is larger than the inner diameter of the first cylindrical section 1131a, thereby forming a stepped surface 1133a between the first cylindrical section 1131a and the second cylindrical section 1132a.

[0130] The second outer conductor unit 11a also includes a through hole 118a and a second protrusion 119a provided on the second cylindrical section 1132a. The through hole 118a radially penetrates the outer peripheral sidewall of the second cylindrical section 1132a and is formed on the second cylindrical section 1132a. The second protrusion is square in shape and protrudes radially inward along the inner wall surface of the second cylindrical section 1132a. The through hole 118a and the second protrusion 119a are distributed at intervals in the circumferential direction of the second cylindrical section 1132a, and are both used to cooperate with the second inner conductor unit 12a for quickly fixing the second inner conductor unit 12a in the second outer conductor unit 11a.

[0131] like Figure 9 and Figure 10 As shown, the second inner conductor unit 12a may include a second conductor post 121a, a second conductor disk 122a disposed above the second conductor post 121a, and a second probe device 123a with one end embedded in the second conductor disk 122a and the second conductor post 121a. Preferably, the axes of the second conductor post 121a, the second conductor disk 122a, the second probe device 123a, and the second outer conductor unit 11a coincide with each other.

[0132] In this embodiment, the second conductor post 121a can be integrally made of a conductive metal material or achieved by depositing a second conductive coating on the outer surface of a non-conductive material. The second conductor post 121a is a stepped cylindrical shape, which may include an integrally connected third post portion 1211a and a fourth post portion 1212a. The fourth post portion 1212a is cylindrical, and its diameter is adapted to the inner diameter of the second cylindrical section 1132a; the third post portion 1211a is square prism, and its outer diameter is smaller than the inner diameter of the first cylindrical section 1131a and smaller than the diameter of the fourth post portion 1212a; the third post portion 1211a is located above the fourth post portion 1212a and is coaxially integrally joined to the top surface of the fourth post portion 1212a. The second conductor post 121a can be embedded into the inner wall of the second conductor sidewall 113a from below. The fourth post portion 1212a is housed in the second cylindrical section 1132a, with its outer peripheral wall surface conforming to the inner peripheral wall surface of the second cylindrical section 1132a, and its top surface abutting against the step surface 1133a between the first cylindrical section 1131a and the second cylindrical section 1132a, thus forming a good ohmic contact between the fourth post portion 1212a and the second conductor sidewall 113a. Understandably, the fourth post portion 1212a is used to seal the lower end of the second conductor sidewall 113a, forming a semi-enclosed second cavity 115a between the fourth post portion 1212a and the first cylindrical section 1131a. The third post portion 1211a is located in the first cylindrical section 1131a, and its top end is used to connect to the second conductor disk 122a.

[0133] The second conductor post 121a also includes a through groove 1215a and an opening (not shown) on the outer peripheral sidewall of the fourth post portion 1212a. During the assembly process of the second conductor post 121a onto the second conductor sidewall 113a, the fourth post portion 1212a can be successfully embedded into the second cylindrical section 1132a by inserting the through groove 1215a into the second protrusion 119a. The through groove 1215a and the second protrusion 119a are designed to position the through hole 118a and the opening, allowing for quick connection between them. At this time, a pin (not shown) can be inserted through the through hole 118a into the opening and fixed in both the through hole 118a and the opening, thereby fixing the second conductor post 121a in the second conductor sidewall 113a. Optionally, the through groove 1215a is radially recessed inward along the outer peripheral sidewall of the fourth pillar portion 1212a, and its shape matches the shape of the second protrusion 119a. Similarly, the opening is provided on the outer peripheral sidewall of the fourth pillar portion 1212a and extends inward along the outer peripheral sidewall. The opening and the through groove 1215a are distributed at intervals on the outer peripheral sidewall of the fourth pillar portion 1212a, and the position of the opening relative to the through groove 1215a corresponds to the position of the through hole 118a relative to the second protrusion 119a.

[0134] The second conductor post 121a further includes an extension 1214a extending radially outward along the outer peripheral sidewall of the third post portion 1211a. This extension 1214a is used for ohmic contact with the feed end 2221 of the first inner conductor 22 of the first microwave feed unit 2. Preferably, a second insertion hole 1213a is also provided on the wall surface of the extension 1214a facing the second feed hole 14a. This second insertion hole 1213a is a blind hole, and its opening is opposite to the second feed hole 14a. It is used for inserting the feed end 2221 of the first inner conductor 22 into it, so that the feed end 2221 abuts against the inner wall surface of the second insertion hole 1213a, thereby forming a good and reliable ohmic contact between the first inner conductor 22 and the second inner conductor unit 12a.

[0135] like Figures 8 to 10 As shown, the second feed hole 14a is used to embed the first microwave feed unit 2 therein. This second feed hole 14a is located around the periphery of the third pillar 1211a, and it penetrates the upper and lower end faces of the fourth pillar 1212a along a direction parallel to the axial direction of the second outer conductor unit 11a, forming within the fourth pillar 1212a. Understandably, the specific structure of the second feed hole 14a can be referenced to the first feed hole 14, and will not be elaborated upon here.

[0136] In this embodiment, the radio frequency board 3 can be arranged below the second microwave heating main unit 1a.

[0137] It should be noted that the specific structure and connection relationship of the second conductor disk 122a, the second probe device 123a and the second receiving seat 13a in the second inner conductor unit 12a can be referred to the first conductor disk 122, the first probe device 123 and the first receiving seat 13 in the above embodiment 1, and will not be repeated here.

[0138] Understandably, in Embodiment 2, the second inner conductor unit 12a is also made of a conductive metal material or by coating a second conductive coating onto the inner wall of a non-conductive cylinder. A second feed hole 14a is opened on the second inner conductor unit 12a, transferring part of the RF connector assembly structure to the second inner conductor unit 12a, thus giving it the function of an RF connector outer conductor. Other specific functions can be found in Embodiment 1, and will not be elaborated here. Figure 7 As can be seen, the second microwave heating main unit 1a of Embodiment 2 is relatively longer than the first microwave heating main unit 1 of Embodiment 1, which further facilitates the miniaturization design of the aerosol generation device.

[0139] Please refer to them again. Figure 11The figure shows the third microwave heating assembly 100b in Embodiment 3 of this utility model. This is an improvement on Embodiment 1, and its difference from the first microwave heating assembly 100 in Embodiment 1 is that the first microwave feed unit 2 in Embodiment 1 is replaced by the second microwave feed unit 2b. Correspondingly, in order to adapt to the second microwave feed unit 2b, the first feed hole 14 in Embodiment 1 is replaced by the third feed hole 14b.

[0140] In this embodiment, the third feed hole 14b is a cylindrical channel with a similar inner diameter, formed in the first protrusion 116 and the first conductor sidewall 113 of the first outer conductor unit 11.

[0141] like Figure 14 As shown, the second microwave feed unit 2b includes a pair of second connecting conductors 24b, a second inner conductor 22b, and a second dielectric layer 23b.

[0142] like Figures 11 to 13 As shown, the pair of second connecting conductors 24b are symmetrically distributed on opposite sides of the periphery of the third feed hole 14b, with their symmetry line parallel to the axis of the first outer conductor unit 11. The second connecting conductors 24b have a square, sheet-like structure, which may include opposing third side 241b (corresponding to the first side 241 of the first connecting conductor 24) and fourth side 242b (corresponding to the second side 242 of the first connecting conductor 24). The third side 241b is relatively far from the second outer conductor unit 11a and is used for soldering to the pads of the RF board 3. The fourth side 242b is attached to the sixth side 1161 of the first bump 116 (it can be integrally attached or soldered to the sixth side 1161 of the first bump 116). By using this pair of second connecting conductors 24b, the first outer conductor unit 11 and the RF board 3 can be soldered together, forming a good ohmic contact between them.

[0143] The second connecting conductor 24b also includes a fifth side 243b connected between the third side 241b and the fourth side 242b, the fifth side 243b facing the second inner conductor 22b. Preferably, a clearance portion 2431b is provided on the fifth side 243b at a position relative to the second inner conductor 22b. This clearance portion 2431b is a fan-shaped groove, recessed into the fifth side 243b in a direction away from the second inner conductor 22b, and extends from the third side 241b toward the fourth side 242b. The purpose of this clearance portion 2431b is to maintain a certain distance between the feed point of the RF board 3 and the fifth side 243b, preventing the second connecting conductor 24b from interfering with the RF signal at the feed point. Preferably, this distance is not less than 0.5mm. In addition, a third distance can also be maintained between the feed point of the RF board 3 and the sixth side 1161 of the first protrusion 116 to prevent the first protrusion 116 from interfering with the RF signal at the feed point. The size of the third spacing shall not be less than 0.5mm.

[0144] like Figure 14 As shown, the second inner conductor 22b is partially disposed in the third feed hole 14b. The second inner conductor 22b has a needle-like structure and may include a third needle segment 221b and a fourth needle segment 222b integrally connected to the third needle segment 221b. The third needle segment 221b corresponds to the first needle segment 221 of the first inner conductor 22 structure, and the fourth needle segment 222b corresponds to the second needle segment 222 of the first inner conductor 22 structure. The specific structure and connection relationship of the second inner conductor 22b can be referred to the first inner conductor 22, and will not be elaborated here.

[0145] Understandably, the second inner conductor 22b is not limited to being in a straight line shape; it can also be in an L-shape, as can be seen in the relevant description in Embodiment 1 above.

[0146] The second dielectric layer 23b may include a cylindrical insulating tube that is sleeved on the outer periphery of the second inner conductor 22b. The outer diameter of the insulating tube is adapted to the inner diameter of the third feed hole 14b, and its outer peripheral wall surface is attached to the inner wall surface of the third feed hole 14b to fix the second inner conductor 22b coaxially located in the third feed hole 14b.

[0147] Understandably, in this embodiment 3, based on embodiment 1, the structure of the RF connector assembly is further simplified. The male RF terminal is eliminated, and the second connecting conductor 24b is directly bonded to the first bump 116 of the first outer conductor unit 11. Simultaneously, the second inner conductor 22b is coaxially positioned in the third feed hole 14b via the second dielectric layer 23b, thereby achieving the microwave feed function. This construction further simplifies the structure, further reduces the volume of the RF connector assembly, further facilitates the miniaturization design of the aerosol generation device, and further reduces costs.

[0148] It is understood that the above embodiments only illustrate preferred embodiments of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present utility model patent. It should be noted that for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present utility model, all of which fall within the protection scope of the present utility model. Therefore, all equivalent transformations and modifications made within the scope of the claims of the present utility model should fall within the coverage of the claims of the present utility model.

Claims

1. A microwave heating component for use in an aerosol generating device, characterized in that, include: The microwave heating main unit includes: A cylindrical outer conductor unit, an inner conductor unit disposed within the outer conductor unit, and a feed hole connecting the interior of the outer conductor unit to the outside; RF board; and A microwave feed unit, comprising: An inner conductor is disposed in the feed hole and includes a feed end and an access end. The feed end is in ohmic contact with the inner side of the outer conductor unit or the inner conductor unit, and the access end is in ohmic contact with the radio frequency board.

2. The microwave heating assembly according to claim 1, characterized in that, The microwave feed unit also includes a connecting conductor, which is located around the feed hole opening and protrudes outward; the microwave heating main unit is connected to the radio frequency board through the connecting conductor.

3. The microwave heating assembly according to claim 2, characterized in that, The microwave feed unit further includes an outer conductor; the outer conductor includes: The mounting portion includes opposing first and second surfaces, and a first through-hole penetrating the first and second surfaces; the first surface is relatively far from the outer conductor unit; the connecting conductor is attached to the first surface; The insert is cylindrical and is inserted into the feed hole; one end of the insert adjacent to the mounting part is coupled to the second surface, and the hollow channel of the insert is connected to the first through hole.

4. The microwave heating assembly according to claim 3, characterized in that, The connecting conductor is integrally bonded to the first surface; or, the connecting conductor is in ohmic contact with the first surface.

5. The microwave heating assembly according to claim 3, characterized in that, The connecting conductors include at least one pair, symmetrically distributed on opposite sides of the opening of the first through hole.

6. The microwave heating assembly according to claim 3, characterized in that, The outer conductor also includes a latching part disposed on the outer periphery of the embedded part, the latching part engaging with the inner wall surface of the feed hole, and the latching part making ohmic contact with the outer conductor unit.

7. The microwave heating assembly according to claim 6, characterized in that, The buckle portion includes a retaining ring fitted around the outer periphery of the insert portion.

8. The microwave heating assembly according to claim 6, characterized in that, The feed port includes: The first hole segment is adjacent to the inner conductor unit, and the inner diameter of the first hole segment is adapted to the outer diameter of the embedded part; The second hole section is coaxially connected to the first hole section, and its inner diameter is larger than that of the first hole section; the inner wall shape of the second hole section is adapted to the buckle part.

9. The microwave heating assembly according to claim 3, characterized in that, The microwave feed unit further includes a dielectric layer between the outer conductor and the inner conductor, the dielectric layer being disposed in the through-hole and / or the hollow channel.

10. The microwave heating assembly according to claim 3, characterized in that, The inner conductor has a needle-like structure in the shape of a straight line and is coaxially disposed in the first through hole and the hollow channel.

11. The microwave heating assembly according to claim 3, characterized in that, The access terminal extends out of the first through hole and is flush with the surface of the connecting conductor away from the microwave heating main unit.

12. The microwave heating assembly according to claim 11, characterized in that, The feed point of the radio frequency board has a first distance from the first surface, and the size of the first distance is not less than 0.5 mm; Furthermore, there is a second gap between the feed point of the RF board and the wall surface of the connecting conductor facing the inner conductor, the size of the second gap being not less than 0.5 mm.

13. The microwave heating assembly according to claim 2, characterized in that, The connecting conductor is integrally bonded to the outer surface of the microwave heating main unit, or the connecting conductor is in ohmic contact with the outer surface of the microwave heating main unit.

14. The microwave heating assembly according to claim 13, characterized in that, The connecting conductors include at least one pair, symmetrically distributed on opposite sides of the feed hole opening.

15. The microwave heating assembly according to claim 2, characterized in that, The inner wall of the feed hole forms a cylindrical channel.

16. The microwave heating assembly according to claim 15, characterized in that, The microwave feed unit further includes a dielectric layer disposed in the feed hole, the outer diameter of the dielectric layer being adapted to the aperture of the feed hole, and it being located between the inner wall surface of the feed hole and the outer wall surface of the inner conductor.

17. The microwave heating assembly according to claim 2, characterized in that, The inner conductor has a needle-like structure in the shape of a straight line, and it is coaxial with the feed hole.

18. The microwave heating assembly according to claim 17, characterized in that, The access terminal extends out of the feed hole and is flush with the surface of the connecting conductor away from the microwave heating main unit.

19. The microwave heating assembly according to claim 13, characterized in that, There is a third gap between the feed point of the radio frequency board and the outer surface of the microwave heating main unit, and the size of the third gap is not less than 0.5 mm; Furthermore, there is a fourth gap between the feed point of the RF board and the wall surface of the connecting conductor facing the inner conductor, the size of the fourth gap being not less than 0.5 mm.

20. The microwave heating assembly according to claim 12 or 19, characterized in that, The connecting conductor also has a recessed portion along its wall facing the inner conductor, the recessed portion being formed on the wall of the connecting conductor facing the inner conductor at a position relative to the inner conductor.

21. The microwave heating assembly according to claim 2, characterized in that, The outer conductor unit is cylindrical and includes a first end, a second end, and a cavity between the first end and the second end; The inner conductor unit is coaxially disposed in the cavity, and includes a first fixed end and a first free end. The first fixed end is connected to the second end, and the first free end extends toward the first end.

22. The microwave heating assembly according to claim 21, characterized in that, The outer conductor unit includes a cylindrical conductor sidewall, which includes a first open end and a second open end opposite to each other.

23. The microwave heating assembly according to claim 22, characterized in that, The inner conductor unit includes: The conductor post includes a second fixed end and a second free end; the second fixed end is coaxially connected to the inside of the outer conductor unit, and the second free end extends toward the first open end.

24. The microwave heating assembly according to claim 23, characterized in that, The outer conductor unit also includes a conductor end wall, which is integrally sealed to the second opening end; The conductor post includes a first post portion and a second post portion coaxially connected, the second post portion being embedded in the conductor end wall and in ohmic contact with the conductor end wall; the first post portion extends from one end of the second post portion adjacent to the first opening end toward the first opening end.

25. The microwave heating assembly according to claim 23, characterized in that, The conductor sidewall includes a first cylindrical section and a second cylindrical section coaxially connected, the first cylindrical section being relatively far from the second end of the outer conductor unit, and the inner diameter of the first cylindrical section being smaller than the inner diameter of the second cylindrical section; The conductor post includes a third post and a fourth post connected coaxially. The fourth post is embedded in the second cylindrical section, and the outer surface of the fourth post is in contact with the inner wall of the second cylindrical section and makes ohmic contact with the second cylindrical section. The diameter of the third post is smaller than the diameter of the first cylindrical section, and it is located in the first cylindrical section.

26. The microwave heating assembly according to claim 25, characterized in that, The microwave heating main unit also includes a pin for fixing the fourth column to the second cylindrical section; the pin passes through the outer peripheral sidewall of the second cylindrical section and is inserted into the fourth column.

27. The microwave heating assembly according to claim 26, characterized in that, The second cylindrical section is provided with a second protrusion for restricting the fourth column from being embedded in the circumferential direction. The second protrusion protrudes inward along the inner wall of the second cylindrical section. The fourth column is provided with a through groove that cooperates with the second protrusion and is recessed inward along the outer peripheral sidewall of the fourth column.

28. The microwave heating assembly according to claim 24, characterized in that, The conductor sidewall is provided with a first protrusion that protrudes radially outward at a position near the second opening end; The feed hole radially penetrates the conductor sidewall and the first protrusion, and is formed in the conductor sidewall and the first protrusion.

29. The microwave heating assembly according to claim 24, characterized in that, The feed hole penetrates the conductor end wall in a direction parallel to the axial direction of the outer conductor unit and is formed on the conductor end wall.

30. The microwave heating assembly according to claim 25, characterized in that, The feed hole penetrates the fourth column in a direction parallel to the axial direction of the outer conductor unit and is formed in the fourth column.

31. The microwave heating assembly according to claim 28, characterized in that, The outer peripheral wall of the conductor post is provided with a first insertion hole extending radially therefrom, and the first insertion hole is opposite to the feed hole; The feed end is inserted into the first socket and makes ohmic contact with the conductor post.

32. The microwave heating assembly according to claim 29 or 30, characterized in that, The inner conductor unit also includes an extension attached to the outer surface of the conductor post, the extension extending outward in a direction perpendicular to the axial direction of the conductor post and making ohmic contact with the feed end.

33. The microwave heating assembly according to claim 32, characterized in that, The extension is provided with a second insertion hole for the feed end to be inserted, and the opening of the second insertion hole is opposite to the feed hole.

34. The microwave heating assembly according to claim 23, characterized in that, The inner conductor unit further includes: A conductor disk is coaxially connected to the second free end, and the diameter of the conductor disk is larger than the diameter of the conductor post and smaller than the inner diameter of the cavity.

35. The microwave heating assembly according to claim 34, characterized in that, The inner conductor unit further includes: The probe device is longitudinally elongated, with one end embedded in the conductor disk and the other end extending toward the first opening.

36. The microwave heating assembly according to claim 22, characterized in that, The microwave heating assembly further includes a receiving seat mounted on the first open end, the receiving seat including a receiving part for receiving the aerosol-generated product, the receiving part being located within the cavity.

37. An aerosol generating device, comprising a battery assembly, characterized in that, It also includes the microwave heating assembly according to any one of claims 1 to 36; the battery assembly is electrically connected to the radio frequency board.

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