Aerosol generating device and microwave heating assembly thereof

Abstract

The present invention relates to an aerosol generating device and a microwave heating assembly thereof, wherein the microwave heating assembly is used in the aerosol generating device, and the microwave heating assembly comprises an outer conductor unit and an inner conductor unit, the outer conductor unit is cylindrical and comprises an outer conductor tube having an open end and a closed end opposite the open end, and at least one first radiating structure installed on the inner peripheral wall surface of the outer conductor tube, the inner conductor unit is installed within the outer conductor tube, one end of the inner conductor unit is connected to the end wall of the closed end, and the other end of the inner conductor unit extends to the open end, and the inner conductor unit comprises at least one second radiating structure corresponding to the at least one first radiating structure, and the present invention can distribute the energy field in the microwave heating assembly in a concentrated manner to effectively improve the heating rate.

Description

[Technical Field]

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

[0002] A microwave-heated aerosol generator in the related art can heat and extract aerosol from an aerosol-generating product by microwave heating. The aerosol generator generally includes a microwave heating assembly, which forms a microwave heating area and can transmit microwave energy to the aerosol-generating product. In this process, the distribution field of microwave energy determines the microwave heating effect.

[0003] However, in actual applications, microwave energy heats the aerosol-generating product according to its specific distribution, resulting in problems such as low energy utilization efficiency or excessive energy dispersion, resulting in low atomization of the aerosol-generating product, slow heating rate, and slow atomization rate. Summary of the Invention [Problem to be solved by the invention]

[0004] The technical problem that the present invention aims to solve is to provide an aerosol generating device and a microwave heating assembly thereof. [Means for solving the problem]

[0005] The technical solution adopted by the present invention to solve the technical problem is as follows: A microwave heating assembly for use in an aerosol generating device, the microwave heating assembly comprising an outer conductor unit and an inner conductor unit; The outer conductor unit comprises: an outer conductor tube having a cylindrical shape and including an open end and a closed end opposite the open end; At least one first radiation structure is installed on the inner peripheral wall surface of the outer conductor tube, The internal conductor unit is installed in the external conductor tube, one end of the internal conductor unit is connected to an end wall of the closed end, and the other end of the internal conductor unit extends to the open end, and the internal conductor unit comprises: and at least one second radiating structure corresponding to the at least one first radiating structure.

[0006] In some embodiments, the at least one second radiating structure is adjacent to the at least one first radiating structure and is respectively arranged on one circumference of the central axis of the outer conductor tube.

[0007] In some embodiments, the at least one first radiating structure has an elongated shape, and its length is aligned with the length of the outer conductor tube.

[0008] In some embodiments, the length of the at least one first radiating structure is parallel to the central axis of the outer conductor tube.

[0009] In some embodiments, the at least one second radiating structure is elongated and parallel to the at least one first radiating structure.

[0010] In some embodiments, the at least one first radiating structure includes a first end and a second end opposite the first end, the first end being relatively spaced from the open end; the at least one second radiating structure includes a first fixed end and a first free end opposite the first fixed end, the first fixed end being relatively spaced apart from the open end; The first end is relatively close to the first fixed end, and the second end is relatively far from the first free end, or the first end is relatively far from the first fixed end, and the second end is relatively close to the first free end.

[0011] In some embodiments, the inner conductor unit further comprises a conductive disk, the conductive disk having a first surface facing the closed end and a second surface opposite the first surface, the first surface being connected to an end wall of the closed end; The at least one second radiating structure includes a first fixed end and a first free end opposite the first fixed end, the first fixed end being fixed near an edge of the second surface and the first free end extending to the open end.

[0012] In some embodiments, the conductive disk is disk-shaped and the outer conductive tube is cylindrical, the diameter of the conductive disk being smaller than the inner diameter of the outer conductive tube.

[0013] In some embodiments, the inner conductor unit includes a conductor post, and the conductor disk is connected to an end wall of the closed end by the conductor post; The conductive column includes a second fixed end and a second free end opposite the second fixed end, the second fixed end being fixed to the end wall of the closed end, and the second free end extending toward the conductive disk and connected to the first surface.

[0014] In some embodiments, the first surface has a groove formed therein that is recessed toward the open end, and the second free end extends into the groove and is connected to a bottom of the groove.

[0015] In some embodiments, the groove, the conductive post, the conductive disk and the outer conductive cylinder are coaxial.

[0016] In some embodiments, a wall surface of the at least one second radiating structure away from the central axis of the outer conductor cylinder is flush with an outer peripheral side surface of the conductor disk.

[0017] In some embodiments, a chamber is separated from the outer conductor tube, and the at least one first radiating structure and the at least one second radiating structure are respectively installed on the outer periphery of the chamber.

[0018] In some embodiments, the microwave heating assembly further comprises a receiving seat attached to the open end, the receiving seat being cylindrical and including a receiving portion for defining the receiving chamber.

[0019] In some embodiments, the at least one first radiating structure and the at least one second radiating structure are arranged on the outer periphery of the housing, adjacent to a wall surface close to the central axis of the outer conductor tube.

[0020] In some embodiments, the at least one first radiating structure and the at least one second radiating structure are partially embedded in a peripheral sidewall of the enclosure.

[0021] In some embodiments, the at least one first radiating structure and the at least one second radiating structure are adjacent to a wall surface of the central axis of the outer conductor tube and are flush with an inner peripheral wall surface of the accommodating portion.

[0022] In some embodiments, the at least one first radiating structure and the at least one second radiating structure are respectively adjacent to a wall surface of the central axis of the outer conductor tube and located inside the accommodating portion.

[0023] In some embodiments, the accommodating seat further includes a fixing portion connected to the accommodating portion, the fixing portion being attached to the open end and including a through hole connecting the accommodating chamber to the outside.

[0024] In some embodiments, the storage portion includes a storage bottom wall facing the open end and a storage side wall surrounding the storage bottom wall, The receiving seat further includes a first ventilation groove and a second ventilation groove; The first ventilation groove is formed on the end surface facing the open end of the storage bottom wall, the second ventilation groove is formed on the inner peripheral wall surface of the storage side wall and the inner peripheral wall surface of the through hole, and the first ventilation groove is connected to the outside via the second ventilation groove.

[0025] In some embodiments, the first ventilation groove has a fan-shaped shape, and a side of the first ventilation groove with a relatively long arc length is adjacent to the first radial structure or the second radial structure, and a side of the first ventilation groove with a relatively short arc length is adjacent to the second ventilation groove.

[0026] In some embodiments, the second ventilation groove extends in a direction parallel to the central axis of the outer conductor tube.

[0027] In some embodiments, the outer conductor unit includes a first cylindrical body and a second cylindrical body that are axially matable and connectable; the open end is formed at an end of the first cylinder away from the second cylinder, and the receiving portion and the at least one first radiating structure are disposed within the first cylinder; The sealed end is formed at an end of the second cylinder away from the first cylinder, and the inner conductor unit is disposed within the second cylinder.

[0028] In some embodiments, an end face of the at least one first radiating structure remote from the open end is flush with an end face of the first cylinder adjacent to the second cylinder.

[0029] In some embodiments, the microwave heating assembly further comprises a microwave supply unit, the microwave supply unit comprising: an outer conductor attached to the second cylindrical body and in ohmic contact with the outer conductor unit; an inner conductor disposed within the outer conductor and in ohmic contact with the inside of the second cylindrical body or the inner conductor unit; a medium layer located between the outer conductor and the inner conductor.

[0030] In some embodiments, the second cylindrical body is provided with a supply hole that connects the interior thereof to the exterior thereof, The outer conductor is fitted into the supply hole and makes ohmic contact with the inner wall surface of the supply hole, and the inner conductor extends into the second cylindrical body through the supply hole.

[0031] The present invention also provides an aerosol generating device comprising a microwave generating assembly and further comprising the microwave heating assembly described above, wherein the microwave heating assembly is connected to the microwave generating assembly. [Effects of the Invention]

[0032] By implementing the present invention, the following beneficial effects can be achieved: The mutual cooperation of the first and second radiating structures results in a concentrated distribution of the energy field in the microwave heating assembly, thereby intensively heating the areas of the aerosol-generating product corresponding to the first and second radiating structures, effectively improving the heating rate. [Brief explanation of the drawings]

[0033] The present invention will now be further described by way of examples with reference to the drawings. [Figure 1] FIG. 1 is a schematic diagram of the external structure of a microwave heating assembly according to some embodiments of the present invention. [Figure 2] FIG. 2 is a longitudinal structural cross-sectional view of the microwave heating assembly shown in FIG. 1 in a first direction. [Figure 3] FIG. 3 is a structural schematic diagram of the microwave heating assembly shown in FIG. 1 in an exploded state. [Figure 4] FIG. 4 is a longitudinal structural cross-sectional view of the microwave heating assembly shown in FIG. 1 in an exploded state. [Figure 5] FIG. 5 is a cross-sectional view of a microwave heating assembly according to some embodiments of the present invention. [Figure 6] 6 is a longitudinal structural cross-sectional view of the microwave heating assembly shown in FIG. 1 in a second direction. [Figure 7] FIG. 7 is a structural schematic diagram of the enlarged receiving seat according to some embodiments of the present invention. [Figure 8] FIG. 8 is a diagram of the energy distribution impinging on an aerosol-generating product by a microwave heating assembly according to some embodiments of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0034] In order to more clearly understand the technical features, objects, and effects of the present invention, the following detailed description of specific embodiments of the present invention will be given with reference to the accompanying drawings. In the following description, the directions or positional relationships indicated by "front", "rear", "up", "down", "left", "right", "longitudinal", "lateral", "vertical", "horizontal", "top", "bottom", "inner", "outer", "front", "end", etc. are the directions or positional relationships shown in the drawings, and configuring and operating in a specific direction is only used to facilitate the description of the technical solution, and does not necessarily indicate that the referenced devices or elements have a specific direction, and therefore should not be understood as limiting the present invention.

[0035] Furthermore, unless expressly specified or limited, terms such as "attached," "coupled," "connected," "fixed," and "installed" should be understood broadly, and may refer to, for example, a fixed connection, a detachable connection, or a connection formed by integral molding, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate element, an internal communication between two elements, or an interactive relationship between two elements. When an element is referred to as being located "above" or "below" another element, the element may be located "directly" or "indirectly" above the other element, or one or more intermediate elements may be present. The terms "first," "second," "third," etc. are used solely to facilitate the description of technical solutions and should not be understood to indicate or imply the relative importance or the number of technical features indicated; thus, a feature qualified with "first," "second," "third," etc. may explicitly or implicitly include one or more features. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific circumstances.

[0036] In the following description, for purposes of explanation and not limitation, specific details are presented, such as specific system architectures, techniques, etc., to provide a thorough understanding of embodiments of the present invention. However, those skilled in the art will appreciate that the present invention may be practiced in other embodiments that do not include these specific details. In other circumstances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid obscuring the description of the present invention with unnecessary detail.

[0037] In some embodiments, the present invention provides an aerosol-generating device that can heat an aerosol-generating product using microwaves to generate an aerosol that can be inhaled by a user. The aerosol-generating product can be a solid aerosol-generating product, such as a product like treated plant leaves. It will be appreciated that the aerosol-generating product is not limited to a solid, and in some other embodiments, the aerosol-generating product can be a liquid aerosol-generating product.

[0038] In some embodiments, the aerosol generating device may include a microwave generating assembly (not shown) and a microwave heating assembly 100. The microwave generating assembly may be for generating a microwave signal, and the microwave heating assembly 100 is connected to the microwave generating assembly and is used to heat the aerosol-generating product by microwaves.

[0039] 1 and 2, in some embodiments, the microwave heating assembly 100 may be substantially cylindrical and may include an outer conductor unit 11, an inner conductor unit 12, a receiving seat 13, and a microwave supply unit (not shown). The outer conductor unit 11 may be cylindrical, and the inner conductor unit 12 may be coaxially inserted into the outer conductor unit 11 to form a microwave heating cavity with the outer conductor unit 11 as a quarter-wavelength coaxial line resonant cavity, and the microwave heating cavity may include a short-circuit end and an open-circuit end.

[0040] In some embodiments, the outer conductor unit 11 has a sealed end 111 and an open end 112 opposite the sealed end 111. Thus, the outer conductor unit 11 defines a semi-sealed cylindrical chamber 113. The inner conductor unit 12 may be used to adjust the resonant frequency and microwave distribution. The inner conductor unit 12 is coaxially installed within the outer conductor unit 11, and one end is connected to the sealed end 111 of the outer conductor unit 11 and makes ohmic contact with the end wall of the sealed end 111 to form a short-circuit end of the microwave heating cavity. The other end of the inner conductor unit 12 extends to the open end 112 of the outer conductor unit 11 and does not contact the outer conductor unit 11 to form an open-circuit end of the microwave heating cavity.

[0041] The receiving seat 13 is removably and coaxially mounted on the open end 112 of the outer conductor unit 11 and is used to mount the aerosol-generating product and support the aerosol-generating product within the chamber 113 .

[0042] The microwave supply unit is used to supply microwaves generated by the microwave generating assembly into the chamber 113 (the supply method can be an electric supply method or a magnetic supply method, with the electric supply method being preferred), and this microwave supply unit is removably attached to the outer wall of the outer conductor unit 11.

[0043] In some embodiments, as shown in Figures 3 and 4, the external conductor unit 11 includes an approximately cylindrical external conductor tube 114, which includes a first cylindrical body 1141 and a second cylindrical body 1142 that can be combined together in the axial direction, the first cylindrical body 1141 and the second cylindrical body 1142 are connected to each other and together define a chamber 113, the first cylindrical body 1141 is cylindrical and both axial ends thereof are open structures, the upper end of the first cylindrical body 1141 forms the open end 112 of the external conductor unit 11, and the second cylindrical body 1142 is cylindrical and its upper end is open structure and connected to the lower end of the first cylindrical body 1141, the lower end of the second cylindrical body 1142 is closed structure and forms the closed end 111 of the external conductor unit 11.

[0044] The second cylindrical body 1142 includes a first cavity segment 1143 and a second cavity segment 1144 connected in the axial direction, the first cavity segment 1143 being relatively close to the first cylindrical body 1141, and the diameter of the first cavity segment 1143 being larger than the diameter of the second cavity segment 1144, thereby forming a stepped surface between the first cavity segment 1143 and the second cavity segment 1144, and the lower end of the first cylindrical body 1141 being connected to the first cavity segment 1143 and can abut against the stepped surface, and the connection method may include interlocking, screw connection, etc.

[0045] The second cylindrical body 1142 further has one radially penetrating supply hole 1145 at a position opposite the second cavity segment 1144, which allows one end of the microwave supply unit to extend into the chamber 113.

[0046] The second cylindrical body 1142 is further provided with a mounting hole 1146 located at the center and passing through in the axial direction in the lower end wall thereof, and this mounting hole 1146 is used for fixing the internal conductor unit 12 therein.

[0047] 2 and 4, the outer conductor unit 11 further includes a first radiating structure 115 connected (integrally bonded or in ohmic contact) to the inner peripheral wall surface of the first cylindrical segment and cooperating with the inner conductor unit 12 to change the distribution of the microwave field. The first radiating structure 115 may be an elongated structure, the length of which may be parallel to the central axis of the outer conductor unit 11, and the long side of the first radiating structure 115 may be bonded to the inner peripheral wall surface of the first cylindrical segment. In some embodiments, the cross section of the first radiating structure 115 may have different shapes, such as a rectangular, sector, or irregular shape. The first radiating structure 115 has opposing first and second ends 1151 and 1152, with the first end 1151 adjacent to the closed end 111 and the second end 1152 adjacent to the open end 112.

[0048] In some embodiments, the outer conductor tube 114 and the first radiating structure 115 are integrally formed from a conductive metal material (e.g., aluminum alloy or copper). It should be understood that the outer conductor tube 114 and the first radiating structure 115 are not limited to being integrally formed from a conductive material, and may be realized by plating a first conductive coating on the inner wall surface of a non-conductive material. Materials for manufacturing the first conductive coating may include gold, silver, conductive metal oxides, etc. Preferably, the first conductive coating is a silver coating or a gold coating.

[0049] 2 to 4, the internal conductor unit 12 is mounted in the second cylindrical body 1142, and may include a conductive rod 121, a conductive disk 122 provided on the upper end of the conductive rod 121, and a second radiation structure 124 connected near the edge of the conductive disk 122. Preferably, the central axes of the conductive rod 121, the conductive disk 122, and the external conductor unit 11 coincide with one another.

[0050] In this embodiment, the conductive rod 121 may be cylindrical. Naturally, the conductive rod 121 is not limited to being cylindrical, and may have other shapes such as a rectangular pillar, an elliptical pillar, a stepped pillar, or an irregular pillar. The diameter of the conductive rod 121 is smaller than the inner diameter of the second cylindrical body 1142, the lower end (second fixed end) of the conductive rod 121 is coaxially fixed to the lower end wall of the second cylindrical body 1142, and the upper end (second free end) of the conductive rod 121 extends vertically upward.

[0051] The conductor post 121 is further provided with an insertion hole 1211 facing the supply hole 1145. This insertion hole 1211 is used to insert the inner conductor of the microwave supply unit, thereby improving the connection reliability between the conductor post 121 and the inner conductor. The insertion hole 1211 is a blind hole, a right cylindrical passage, and extends into the conductor post 121 along the diameter of the outer wall of the conductor post 121.

[0052] A tie bar 123 extending in the axial direction is further connected to the lower end of the conductive column 121, and this tie bar 123 may be integrally joined to the conductive column 121 and is used to attach to the mounting hole 1146 of the second cylindrical body 1142 to securely fix the conductive column 121 to the second cylindrical body 1142.

[0053] In this embodiment, the conductive disk 122 is disk-shaped. Naturally, the shape of the conductive disk 122 is not limited to being disk-shaped, and may be a prism shape, a truncated cone shape, etc. The diameter of the conductive disk 122 is smaller than the inner diameter of the second cylindrical body 1142, and there is a uniform second gap between the outer peripheral side wall of the conductive disk 122 and the inner peripheral side wall of the outer conductor unit 11.

[0054] Next, the conductive disk 122 is coaxially disposed on the upper end of the conductive post 121. The conductive disk 122 and the conductive post 121 may be integrally bonded or may be in ohmic contact with each other. Referring again to FIGS. 3 and 4 , in some embodiments, the diameter of the conductive disk 122 may be larger than the diameter of the conductive post 121. The conductive disk 122 includes a first surface facing the conductive post 121 and a second surface opposite to the first surface, and a groove 1221 recessed toward the open end 112 is formed in the first surface. The groove 1221 may be cylindrical and formed coaxially within the conductive disk 122. The diameter of the groove 1221 may be larger than the diameter of the conductive post 121, so that the upper end of the conductive post 121 extends into the groove 1221 and is fixedly connected to the bottom of the groove 1221. A uniform third gap is formed between the outer peripheral sidewall of the conductive post 121 and the groove sidewall of the groove 1221. As can be seen, by accommodating part of the structure of the conductor column 121 in the conductor disk 122, the axial length of the entire internal conductor unit 12 can be shortened without affecting the electrical characteristics.

[0055] 3 and 4, in some embodiments, the second radiating structure 124 may have an elongated shape, with its length parallel to the central axis of the outer conductor unit 11, and the cross section of the second radiating structure 124 may be rectangular, sector-shaped, or irregular. The second radiating structure 124 has opposing first fixed end 1241 and first free end 1242, with the first fixed end 1241 connected to the periphery of the second surface of the conductive disk 122 and the first free end 1242 extending upward in the vertical direction. Preferably, the surface of the second radiating structure 124 adjacent to the second cylindrical body 1142 is flush with the outer peripheral side surface of the conductive disk 122.

[0056] The conductive post 121, the conductive disc 122, and the second radiating structure 124 are integrally formed from a conductive metal material, preferably an aluminum alloy or copper. It should be understood that the conductive post 121, the conductive disc 122, and the second radiating structure 124 are not limited to being integrally formed from a conductive material, but may also be realized by plating a second conductive coating on the inner wall surface of a non-conductive body. Materials for manufacturing the second conductive coating may include gold, silver, conductive metal oxide, etc. Preferably, the second conductive coating is a silver coating or a gold coating.

[0057] 5 and 6, the first radiating structure 115 and the second radiating structure 124 are arranged opposite each other around the outer periphery of the aerosol-generating product, and the first radiating structure 115 and the second radiating structure 124 are arranged in parallel on one circumference Y of the central axis of the outer conductor unit 11 (in this embodiment, referring to FIG. 5, when viewed from a plan view, the circumference Y is located between the outer circumferential side surface of the conductor disk 122 and the inner circumferential wall surface of the first cylindrical body 1141). The first radiating structure 115 and the second radiating structure 124 are arranged opposite each other in the circumferential direction Y, with a first distance D between them. The mutual cooperation of the first radiating structure 115 and the second radiating structure 124 changes the shape of the microwave field, forming a microwave field that is concentratedly distributed in the vertical direction, which further concentrates heating of the corresponding area of ​​the aerosol-generating product, shortening the time required for complete heating and achieving rapid heating and curing.

[0058] 5 and 6 , in some embodiments, the first radiating structure 115 and the second radiating structure 124 are parallel to each other, and their longitudinal directions are both parallel to the central axis of the outer conductor unit 11. As can be understood, the first radiating structure 115 and the second radiating structure 124 may also be arranged in an eight-shape. Specifically, the first end 1151 of the first radiating structure 115 is relatively close to the first fixed end 1241 of the second radiating structure 124, and the second end 1152 of the first radiating structure 115 is relatively far from the first free end 1242 of the second radiating structure 124. Alternatively, the first end 1151 of the first radiating structure 115 is relatively far from the first fixed end 1241 of the second radiating structure 124, and the second end 1152 of the first radiating structure 115 is relatively close to the first free end 1242 of the second radiating structure 124.

[0059] 3 and 4, the receiving seat 13 includes a receiving portion 131 and a fixing portion 132 integrally connected to the receiving portion 131. The receiving portion 131 is used to receive the aerosol-generating product, and the fixing portion 132 is axially sealed to the open end 112 of the outer conductor unit 11 and is used to fix the receiving portion 131 relatively within the chamber 113.

[0060] The container 131 may be cylindrical, and its outer diameter may be smaller than the inner diameter of the first cylindrical body 1141, and it is coaxially disposed within the first cylindrical body 1141. The container 131 defines a single container chamber 1311 in the axial direction for containing the aerosol-generating product.

[0061] In this embodiment, the storage section 131 includes a cylindrical storage side wall 1312 and a storage bottom wall 1313 sealed to one end of the storage side wall 1312, and the storage bottom wall 1313 is relatively opposite to the open end 112 of the external conductor unit 11 and is used to support the aerosol-generating product.

[0062] The receiving sidewall 1312 further defines a first relief groove 1314 and a second relief groove 1315 adjacently spaced apart. The first relief groove 1314 has an elongated shape and a size and shape that matches the first radiating structure 115 and is used to fit the first radiating structure 115 therein, and the second relief groove 1315 has an elongated shape and a size and shape that matches the second radiating structure 124 and is used to fit the second radiating structure 124 therein.

[0063] 5 , the first radiating structure 115 and the second radiating structure 124 are aligned in the circumferential direction of the accommodating portion 131, and the first radiating structure 115 and the second radiating structure 124 are fitted into the accommodating side wall 1312 by the first relief groove 1314 and the second relief groove 1315, respectively. Preferably, the wall surfaces of the first radiating structure 115 and the second radiating structure 124 close to the central axis of the outer conductor unit 11 are flush with the inner circumferential surface of the accommodating side wall 1312. Naturally, the correspondence between the first radiating structure 115 and the second radiating structure 124 and the accommodating portion 131 is not limited to being fitted into the accommodating portion 131, and the first radiating structure 115 and the second radiating structure 124 may also be installed around the accommodating portion 131, with the wall surfaces of the first radiating structure 115 and the second radiating structure 124 that are close to the central axis of the external conductor unit 11 facing the outer circumferential surface of the accommodating side wall 1312. Alternatively, a portion of the structure of the first radiating structure 115 and the second radiating structure 124 may be fitted inside the accommodating portion 131, with the wall surfaces of the first radiating structure 115 and the second radiating structure 124 that are close to the central axis of the external conductor unit 11 both located inside the accommodating portion 131.

[0064] The fixing portion 132 may be annular and is integrally and coaxially connected to the storage portion 131. The fixing portion 132 is coaxially sealed to the open end 112 of the outer conductor unit 11, and can fix the storage portion 131 relatively coaxially within the chamber 113. The fixing portion 132 includes a through-hole 1321 in one axial direction that connects the storage chamber 1311 with the external environment, and the aerosol-generating product can be inserted into the storage chamber 1311 through the through-hole 1321.

[0065] As shown in Figures 5 and 7, the accommodating seat 13 further includes a first ventilation groove 133 formed in the accommodating bottom wall 1313 and a second ventilation groove 134 formed in the accommodating side wall 1312 and the inner peripheral wall of the through hole 1321, and the first ventilation groove 133 is connected to the outside (outside the external conductor unit 11) through the second ventilation groove 134, thereby facilitating the ambient air to be sucked into the bottom of the aerosol-generating product and then enter the aerosol-generating product, which is heated by microwaves and then discharged.

[0066] The first ventilation groove 133 has a fan-shaped shape, and the side of the first ventilation groove 133 with a relatively long arc length is close to the first radial structure 115 or the second radial structure 124, and the side of the first ventilation groove 133 with a relatively short arc length is close to the second ventilation groove 134.

[0067] The second ventilation groove 134 is disposed on the opposite side of the first radiating structure 115 or the second radiating structure 124. The second ventilation groove 134 has a vertically elongated shape, and its extending direction is parallel to the central axis of the outer conductor unit 11.

[0068] In this embodiment, the microwave supply unit may be a coaxial connector, which is inserted through the supply hole 1145 of the second cylindrical body 1142 and attached to the outer conductor unit 11. This microwave supply unit (not shown) includes an outer conductor, an inner conductor disposed within the outer conductor, and a medium layer located between the inner conductor and the outer conductor.

[0069] The outer conductor may have a right cylindrical structure with both ends open, and when the microwave supply unit is attached to the outer conductor unit 11 , the outer peripheral side surface of the outer conductor makes ohmic contact with the inner wall surface of the supply hole 1145 .

[0070] The inner conductor has a straight needle-like structure, one end of which is a connection end located inside the outer conductor, and the other end is a supply end located outside the outer conductor. The connection end is used to connect to the microwave generating assembly to pass microwaves, and the connection method may be a coaxial connection method or a microstrip line method. When the microwave supply unit is attached to the outer conductor unit 11, the supply end is relatively close to the inner conductor unit 12 and is inserted into the insertion hole 1211 of the conductor post 121 to achieve electrical or magnetic coupling.

[0071] Naturally, the shape of the inner conductor is not limited to being linear, and the inner conductor may be L-shaped (not shown), and may include one first segment that is perpendicular to the central axis of the microwave heating assembly 100 and a second segment that is parallel to the central axis of the microwave heating assembly 100. The first segment is partially located within the outer conductor and is integrally connected to one end of the second segment, and the other end of the second end 1152 is located outside the outer conductor and is in direct ohmic contact with the bottom end wall of the second cylindrical body 1142.

[0072] Hereinafter, operation tests will be carried out on the microwave heating assemblies 100 according to some embodiments of the present invention, and the roles played by the first radiating structure 115 and the second radiating structure 124 will be specifically described.

[0073] 8, which shows the energy distribution during operation after the aerosol-generating product is loaded into the microwave heating assembly 100. As can be seen, due to the cooperation between the first radiating structure 115 and the second radiating structure 124, the effective area of ​​the energy field is biased toward the side where the first radiating structure 115 and the second radiating structure 124 are located, and the shape of the energy field is distributed intensively in the vertical direction, so that the corresponding area of ​​the aerosol-generating product is heated intensively, thereby shortening the time required to heat part of the structure of the aerosol-generating product and achieving rapid heat curing.

[0074] As can be seen, in some embodiments, only one first radiating structure 115 is provided to cooperate with the second radiating structure 124. In other embodiments, the number of the first radiating structures 115 and the second radiating structures 124 may be set to correspond to two or more, and the corresponding single first radiating structure 115 and second radiating structure 124 belong to the same set of radiating units, and the two or more sets of radiating units are arranged at intervals on the circumference Y around the central axis of the outer conductor unit 11, and the distance between the sets is appropriately adjusted according to the required microwave field shape distribution.

[0075] It should be understood that the above examples are merely for the purpose of illustrating preferred embodiments of the present invention, and although the description is more specific and detailed, it does not limit the scope of the claims of the present invention. Those skilled in the art can freely combine the above technical features and make various modifications and improvements without departing from the concept of the present invention. All of these modifications and improvements fall within the scope of the present invention. Therefore, all equivalent substitutions and modifications made based on the scope of the claims of the present invention should also fall within the scope of the claims of the present invention. [Explanation of symbols]

[0076] 100 Microwave Heating Assembly 11 Outer conductor unit 12 Internal conductor unit 13 Containment Seat 111 Sealed end 112 Open end 113 Chamber 114 Outer conductor tube 115 1st radiation structure 1141 First cylinder 1142 Second cylinder 1143 First cavity segment 1144 2nd cavity segment 1145 Supply hole 1146 Mounting hole 1151 1st end 1152 2nd end 121 Conductor Pillar 122 Conductor disc 123 Tie Bar 124 Second radiation structure 1211 Insertion hole 1221 Groove 1241 1st fixed end 1242 1st free end 131 Storage unit 132 Fixed part 133 First Ventilation Ditch 134 Second Ventilation Ditch 1311 Containment Room 1312 Storage side wall 1313 Containment Bottom Wall 1314 First relief groove 1315 Second relief groove 1321 Through hole D First interval Y circumference

Claims

1. 1. A microwave heating assembly for use in an aerosol generating device, comprising: the microwave heating assembly comprises an outer conductor unit and an inner conductor unit; The outer conductor unit comprises: an outer conductor tube having a cylindrical shape and including an open end and a closed end opposite the open end; at least one first radiation structure disposed on an inner peripheral wall surface of the outer conductor tube; The internal conductor unit is installed in the external conductor tube, one end of the internal conductor unit is connected to an end wall of the closed end, and the other end of the internal conductor unit extends to the open end, and the internal conductor unit comprises: A microwave heating assembly comprising at least one second radiating structure corresponding to said at least one first radiating structure.

2. The microwave heating assembly according to claim 1, wherein the at least one second radiating structure is adjacent to the at least one first radiating structure and is respectively arranged on one circumference of the central axis of the outer conductor tube.

3. 2. The microwave heating assembly of claim 1, wherein the at least one first radiating structure has a vertically elongated shape and its length direction is arranged along the length direction of the outer conductor tube.

4. 4. The microwave heating assembly according to claim 3, wherein the length direction of said at least one first radiating structure is parallel to the central axis of said outer conductor tube.

5. 4. The microwave heating assembly of claim 3, wherein the at least one second radiating structure is elongated and parallel to the at least one first radiating structure.

6. the at least one first radiating structure includes a first end and a second end opposite the first end, the first end being relatively spaced from the open end; the at least one second radiating structure includes a first fixed end and a first free end opposite the first fixed end, the first fixed end being relatively spaced apart from the open end; 2. The microwave heating assembly of claim 1, wherein the first end is relatively close to the first fixed end and the second end is relatively far from the first free end, or the first end is relatively far from the first fixed end and the second end is relatively close to the first free end.

7. the inner conductor unit further includes a conductive disk, the conductive disk including a first surface facing the closed end and a second surface opposite the first surface, the first surface being connected to an end wall of the closed end; 2. The microwave heating assembly of claim 1, wherein the at least one second radiating structure includes a first fixed end and a first free end opposite the first fixed end, the first fixed end being fixed near an edge of the second surface and the first free end extending to the open end.

8. 8. The microwave heating assembly of claim 7, wherein the conductive disk is disk-shaped, the outer conductive tube is cylindrical, and the diameter of the conductive disk is smaller than the inner diameter of the outer conductive tube.

9. the inner conductor unit includes a conductor post, and the conductor disk is connected to an end wall of the closed end by the conductor post; 8. The microwave heating assembly of claim 7, wherein the conductive post includes a second fixed end and a second free end opposite the second fixed end, the second fixed end being fixed to an end wall of the closed end, and the second free end extending toward the conductive disk and connected to the first surface.

10. 10. The microwave heating assembly of claim 9, wherein the first surface has a groove recessed toward the open end, and the second free end extends into the groove and is connected to the bottom of the groove.

11. The microwave heating assembly of claim 10, wherein the groove, the conductive post, the conductive disk and the outer conductive cylinder are coaxial.

12. 8. The microwave heating assembly according to claim 7, wherein a wall surface of said at least one second radiating structure away from the central axis of said outer conductor cylinder is flush with an outer peripheral side surface of said conductor disk.

13. 2. The microwave heating assembly according to claim 1, wherein a chamber is separated from the outer conductor tube, and the at least one first radiation structure and the at least one second radiation structure are each installed on the outer periphery of the chamber.

14. The microwave heating assembly of claim 13, further comprising a receiving seat attached to the open end, the receiving seat being cylindrical and including a receiving portion for defining the receiving chamber.

15. The microwave heating assembly of claim 14, wherein the at least one first radiating structure is adjacent to the at least one second radiating structure, and the wall surface of the central axis of the outer conductor tube is arranged on the outer periphery of the accommodating portion.

16. 15. The microwave heating assembly of claim 14, wherein the at least one first radiating structure and the at least one second radiating structure are partially recessed into a peripheral side wall of the enclosure.

17. The microwave heating assembly of claim 16, wherein the at least one first radiation structure and the at least one second radiation structure are adjacent to a wall surface of the central axis of the outer conductor tube and are flush with the inner peripheral wall surface of the accommodating portion.

18. The microwave heating assembly of claim 16, wherein the at least one first radiating structure and the at least one second radiating structure are each located adjacent to a wall surface of the central axis of the outer conductor tube and inside the accommodating portion.

19. The microwave heating assembly of claim 14, wherein the accommodating seat further includes a fixing portion connected to the accommodating portion, the fixing portion being attached to the open end and including one through hole connecting the accommodating chamber to the outside.

20. The storage section includes a storage bottom wall facing the open end and a storage side wall provided around the periphery of the storage bottom wall, The receiving seat further includes a first ventilation groove and a second ventilation groove; 20. The microwave heating assembly of claim 19, wherein the first ventilation groove is formed in an end surface facing the open end of the housing bottom wall, the second ventilation groove is formed in an inner peripheral wall surface of the housing side wall and an inner peripheral wall surface of the through hole, and the first ventilation groove is connected to the outside via the second ventilation groove.

21. 21. The microwave heating assembly of claim 20, wherein the first ventilation groove has a fan-shaped configuration, the side of the first ventilation groove having a relatively longer arc length is adjacent to the first radiating structure or the second radiating structure, and the side of the first ventilation groove having a relatively shorter arc length is adjacent to the second ventilation groove.

22. 21. The microwave heating assembly according to claim 20, wherein the second ventilation groove extends in a direction parallel to the central axis of the outer conductor tube.

23. the outer conductor unit includes a first cylindrical body and a second cylindrical body that are axially coupled and connectable; the open end is formed at an end of the first cylinder away from the second cylinder, and the receiving portion and the at least one first radiating structure are disposed within the first cylinder; 15. The microwave heating assembly of claim 14, wherein the closed end is formed at an end of the second cylinder away from the first cylinder, and the internal conductor unit is installed within the second cylinder.

24. 24. The microwave heating assembly of claim 23, wherein an end face of the at least one first radiating structure remote from the open end is flush with an end face of the first cylinder adjacent to the second cylinder.

25. The microwave heating assembly further comprises a microwave supply unit, the microwave supply unit comprising: an outer conductor attached to the second cylindrical body and in ohmic contact with the outer conductor unit; an inner conductor disposed within the outer conductor and in ohmic contact with the inside of the second cylindrical body or the inner conductor unit; 24. The microwave heating assembly of claim 23, including a medium layer positioned between the outer conductor and the inner conductor.

26. The second cylindrical body is provided with a supply hole that connects the inside of the second cylindrical body with the outside, 26. The microwave heating assembly of claim 25, wherein the outer conductor is fitted into the supply hole and makes ohmic contact with the inner wall surface of the supply hole, and the inner conductor extends through the supply hole into the second cylinder.

27. 1. An aerosol generating device comprising a microwave generating assembly, 27. An aerosol generating device further comprising a microwave heating assembly according to any one of claims 1 to 26, said microwave heating assembly being connected to said microwave generating assembly.

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