Aerosol generating device and microwave heating assembly

Abstract

The invention relates to an aerosol generating device and a microwave heating assembly. The microwave heating assembly comprises an inner conductor unit and an outer conductor unit. The outer conductor unit comprises a closed end, an open end opposite to the closed end and an accommodating cavity formed between the closed end and the open end; an accommodating area is formed in the accommodating cavity; the accommodating cavity comprises a first direction and a second direction; the first direction is perpendicular to the second direction; the inner surface of the outer conductor unit is provided with two ribs protruding towards the accommodating area, and the ribs extend from the closed end to the open end; the inner conductor unit is at least partially installed in the containing cavity and comprises a microwave radiation structure which is located on the same side of the containing area with the protruding edges in the first direction and located between the two protruding edges in the second direction. The maximum distance of the two protruding edges in the second direction is smaller than the length of the containing area in the second direction. The microwave heating assembly adjusts energy field distribution of the containing cavity through the two protruding edges, and energy field optimization is achieved.

Description

Technical Field

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

[0002] Most of the heating methods used in aerosol generating device-related products on the market are still based on traditional heating methods such as conduction and radiation. Microwaves, as a more efficient, three-dimensional heating method with less thermal inertia, have huge room for development in this field. To use microwaves to heat aerosol generating products, it is necessary to match a small-sized cavity and a high-density energy field. The energy field in the cavity in the related technology is usually distributed unreasonably, which can easily lead to poor heating effects of aerosol generating products in the cavity, such as slow aerosol output speed or partial burning of aerosol generating products. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide an improved aerosol generating device and a microwave heating component.

[0004] The technical solution adopted by the present invention to solve the technical problem is as follows: the present invention constructs a microwave heating assembly, including an inner conductor unit and an outer conductor unit;

[0005] The outer conductor unit includes a closed end, an open end opposite to the closed end, and a receiving cavity formed between the closed end and the open end; a receiving area for receiving the aerosol generating product is formed in the receiving cavity; the receiving cavity includes a first direction and a second direction perpendicular to the assembly axial direction of the aerosol generating product; the first direction is perpendicular to the second direction;

[0006] The inner surface of the outer conductor unit is provided with two ridges protruding toward the accommodating area, and the ridges extend from the closed end toward the open end;

[0007] The inner conductor unit is at least partially installed in the accommodating cavity and includes a microwave radiating structure. In the first direction, the microwave radiating structure and the ridge are located on the same side of the accommodating area. In the second direction, the microwave radiating structure is located between two ridges, and the minimum distance between two ridges on two opposite sides of the microwave radiating structure in the second direction is less than the length of the accommodating area in the second direction.

[0008] In some embodiments, the convex ridge extends from the closed end toward the open end to a position opposite to the accommodating area; or extends from a position at a set distance from the closed end toward the open end to a position opposite to the accommodating area.

[0009] In some embodiments, the maximum distance between the two ridges in the second direction is less than or equal to the length of the accommodating area in the second direction;

[0010] The two ridges are less than or equal to 80% of the length of the accommodating area in the second direction.

[0011] In some embodiments, the accommodating cavity includes a first cavity for accommodating the aerosol generating product and a second cavity communicating with the first cavity;

[0012] The convex ridge is located on the inner surface of the first cavity.

[0013] In some embodiments, the outer conductor unit includes a first side wall and a second side wall connected axially; the first side wall defines the first cavity; the second side wall defines the second cavity;

[0014] The inner conductor unit extends from the second cavity to the first cavity;

[0015] A microwave feeding hole is formed on the second side wall, and the microwave feeding hole is communicated with the second cavity of the accommodating cavity.

[0016] In some embodiments, the inner surface of the outer conductor unit is partially recessed to form a groove, and the groove has a notch arranged toward the inner conductor unit; two oppositely arranged edges of the notch form the two convex ridges.

[0017] In some embodiments, the outer conductor unit includes at least a first cylinder and a second cylinder that are spliced ​​and interpenetrating with each other; the cross-sectional dimension of the first cylinder is greater than or equal to the cross-sectional dimension of the second cylinder, and the axis of the first cylinder is parallel to the axis of the second cylinder;

[0018] The convex ridge is formed at the joint of the first cylinder and the second cylinder.

[0019] In some embodiments, the inner conductor unit includes a microwave matching structure;

[0020] The microwave matching structure is disposed in the accommodating cavity and is in ohmic contact with the closed end, and extends toward the direction where the open end is located;

[0021] The microwave radiation structure is spaced apart from the microwave matching structure and is in ohmic contact with the closed end;

[0022] Alternatively, the microwave matching structure is disposed in the accommodating cavity and is in ohmic contact with the closed end, and is coaxially connected to the microwave radiating structure and formed in one piece.

[0023] In some embodiments, a fixing member is further included, and the fixing member is disposed in the accommodating cavity and located at the opening end;

[0024] The fixing member is cylindrical, a receiving cavity for receiving the aerosol generating product is formed in the fixing member, and the receiving area is formed in the receiving cavity;

[0025] The fixing member comprises a cylinder wall, a notch is provided on a side of the cylinder wall facing the convex edge, and an edge of the notch abuts against an inner surface of the outer conductor unit;

[0026] A receiving groove for receiving at least a part of the microwave radiation structure is arranged on the cylinder wall and located inside the notch.

[0027] An aerosol generating device is also constructed, comprising the microwave heating component of the present invention, a microwave feeding unit connected to the inner conductor unit of the microwave heating component, and a microwave generating unit connected to the microwave feeding unit.

[0028] The implementation of the aerosol generating device and the microwave heating assembly of the present invention has the following beneficial effects: the microwave heating assembly is provided with two ridges protruding toward the accommodating area on the inner surface of the outer conductor unit, and each ridge is extended from the closed end toward the open end, and in the first direction, the microwave radiation structure and the two ridges are located on the same side of the accommodating area, and in the second direction, the microwave radiation structure is located between the two ridges, and the minimum distance between the two ridges on the two opposite sides of the microwave radiation structure in the second direction is less than the length of the accommodating area in the second direction, and thus the energy field distribution of the accommodating cavity can be adjusted by the two ridges, the energy field can be optimized, the overall energy field can be centralized and the local field can be uniformed, and thus the aerosol amount can be optimized while ensuring the aerosol output speed. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0030] Figure 1 is a partial structural schematic diagram of an aerosol generating device in a first embodiment of the present invention;

[0031] Figure 2 yes Figure 1 A schematic structural diagram of a local structure of the aerosol generating device shown at another angle;

[0032] Figure 3 yes Figure 1 A cross-sectional view of a local structure of the aerosol generating device shown;

[0033] Figure 4 yes Figure 1 A schematic diagram of the structure of a fixing member in the aerosol generating device shown;

[0034] Figure 5 yes Figure 1 Energy field distribution diagram of the aerosol generating device shown;

[0035] Figure 6 yes Figure 5 A partially enlarged schematic diagram of the energy field distribution of the aerosol generating device shown;

[0036] Figure 7 is an energy field distribution diagram when the distance D1 between the two ridges in the aerosol generating device is less than or equal to 80% of the length D2 of the accommodating area in the second direction;

[0037] Figure 8 is a schematic structural diagram of an aerosol generating device in a second embodiment of the present invention;

[0038] Fig. 9 yes Figure 1 a cross-sectional view of the aerosol generating device shown;

[0039] Fig.10 yes Figure 1 Energy field distribution diagram of the aerosol generating device shown;

[0040] Fig.11 yes Figure 1 A partially enlarged schematic diagram of the energy field distribution of the aerosol generating device shown;

[0041] Fig.12 This is the energy field distribution diagram of a conventional aerosol generating device;

[0042] Fig.13 It is a partially enlarged schematic diagram of the energy field distribution of a conventional aerosol generating device;

[0043] Fig.14 Schematic diagram of the structure of an aerosol generating device in the third embodiment of the present invention. DETAILED DESCRIPTION

[0044] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation methods of the present invention are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "upper", "lower", "inner", "outer", etc. are based on the directions or positional relationships shown in the accompanying drawings, are constructed and operated in specific directions, and are only for the convenience of describing the present technical solution, rather than indicating that the device or element referred to must have a specific direction, and therefore cannot be understood as a limitation to the present invention.

[0045] It should also be noted that, unless otherwise clearly specified and limited, the terms such as "connected", "connected", "set", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. When an element is referred to as being "on" or "under" another element, the element can be "directly" or "indirectly" located on the other element, or there may be one or more intermediate elements. The terms "first", "second", etc. are only for the convenience of describing the present technical solution, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0046] Figure 1 The first embodiment of the aerosol generating device of the present invention is shown. The aerosol generating device can heat the aerosol generating product 200 by feeding microwaves to generate aerosol for the user to inhale. The aerosol generating product 200 can be detachably arranged in the aerosol generating device. In some embodiments, the aerosol generating product 200 is columnar, specifically, the aerosol generating product 200 can be cylindrical, and can be a solid material in the form of silk strips, particles or sheets made of leaves, flowers and / or stems of plants, and aroma components can be further added to the solid material.

[0047] like Figure 1 As shown, in this embodiment, the aerosol generating device may include a housing (not shown), a microwave heating component and a microwave generating unit (not shown), wherein the microwave heating component is accommodated in the housing (not shown) and is used to generate microwaves inside the housing after receiving microwaves to form an energy field, thereby heating the aerosol generating product 200. The microwave generating unit (not shown) may be connected to the microwave heating component for feeding microwaves.

[0048] In this embodiment, the microwave heating assembly may include an outer conductor unit 10 and an inner conductor unit 20. The inner conductor unit 20 is at least partially disposed in the outer conductor unit 10 and can receive microwaves into the outer conductor unit 10, so that microwaves can be generated in the outer conductor unit 10 to form an energy field.

[0049] like Figures 1 to 3As shown, in this embodiment, the outer conductor unit 10 is made of metal or other high conductivity materials, and is used to bind the microwave capacity therein. In some embodiments, the outer conductor unit 10 is a cylindrical structure, and can be a regular shape, such as a rectangular parallelepiped or a cylindrical shape. In some embodiments, the outer conductor unit 10 can be an irregular shape. Specifically, in this embodiment, the outer conductor unit 10 is an irregular shape formed by partially convex or concave.

[0050] In this embodiment, the outer conductor unit 10 may include a closed end 10a and an open end 10b, wherein the closed end 10a and the open end 10b are arranged opposite to each other in the axial direction, wherein the open end 10b can be used for loading the aerosol generating product 200 therein.

[0051] In this embodiment, the outer conductor unit 10 at least includes a first side wall 101, a second side wall 102, and a third side wall 103; wherein the first side wall 101 is axially connected to the second side wall 102, and is non-coaxially arranged, and is arranged in a stepped manner. The third side wall 103 is arranged opposite to the first side wall 101 and the second side wall 102. In this embodiment, the outer conductor unit 10 may also include two oppositely arranged fourth side walls 104, two oppositely arranged fifth side walls 105, and two oppositely arranged sixth side walls 106. Among them, the two fourth side walls 104 are respectively located on two opposite sides of the first side wall 101 and connected to the first side wall 101. The two fifth side walls 105 are respectively located on two opposite sides of the second side wall 102 and are respectively connected to the second side wall 102. The two sixth side walls 106 are respectively located on two opposite sides of the fifth side wall 105, and each sixth side wall 106 is bent and connected to the fifth side wall 105, and is connected to the fourth side wall 104.

[0052] In this embodiment, the outer conductor unit 10 further includes a first barrel 10c and a second barrel 10d; the first barrel 10c and the second barrel 10d are spliced ​​and interpenetrated with each other. The axes of the first barrel 10c and the second barrel 10d are arranged in parallel. The cross-section of the first barrel 10c and the second barrel 10d may be roughly square. It can be understood that in some other embodiments, the cross-section of the first barrel 10c and the second barrel 10d is not limited to square, and may be circular, semicircular, or other shapes. The cross-sectional size of the first barrel 10c may be larger than the cross-sectional size of the second barrel 10d, and the depth of the first barrel 10c is less than the depth of the second barrel 10d. In some other embodiments, the cross-sectional size of the first barrel 10c may be equal to the cross-sectional size of the second barrel 10d. The first barrel 10c may be connected and surrounded by the first side wall 101, the fourth side wall 104, and the sixth side wall 106. The second cylinder 10d can be formed by connecting the second side wall 102, the third side wall 103, and the fifth side wall 105 to each other.

[0053] In this embodiment, the inner side of the outer conductor unit 10 is hollow to form a receiving chamber 11, that is, the first cylinder 10c and the second cylinder 10d are combined to define the receiving chamber 11. The receiving chamber 11 is located between the closed end 10a and the open end 10b, and can accommodate at least part of the inner conductor unit 20 for microwave feeding; a receiving area 310 is formed inside the receiving chamber 11, and the receiving area 310 can be used to accommodate the aerosol generating product 200. The closed end 10a and the open end 10b are formed in the axial direction of the receiving chamber 11. The outer conductor unit 10 also has an opening 12 and an end wall 14 that are connected to the receiving chamber 11. The opening 12 and the end wall 14 are arranged opposite to each other, and the opening 12 can be covered by a covering structure in some embodiments. The opening 12 corresponds to the open end 10b of the outer conductor unit 10b, and the end wall 14 corresponds to the closed end 10a of the outer conductor unit 10b.

[0054] In this embodiment, the accommodating cavity 11 further includes a first cavity 11a and a second cavity 11b; the first cavity 11a and the second cavity 11b are axially connected and communicated with each other. That is, the first cavity 11a is located at one end of the second cavity 11b, and the open end 10b is formed at one end of the first cavity 11a; the closed end 10a is formed at one end of the second cavity 11b. The first cavity 11a can be defined by the first side wall 101, the fourth side wall 104, the sixth side wall 106 and a part of the third side wall 103. The second cavity 11b can be defined by the second side wall 102, the fifth side wall 105, and a part of the third side wall 103.

[0055] In this embodiment, the accommodating cavity 11 has at least a first direction and a second direction, and the first direction and the second direction are both perpendicular to the assembly direction of the aerosol generating article 200, and the first direction and the second direction are perpendicular. The first direction may be the X-axis direction, and the second direction may be the Y-axis direction. The first direction has two sides, such as the first side 11c and the second side 11d; wherein the first side 11c and the second side 11d are arranged opposite to each other.

[0056] In this embodiment, at least two ridges 131 are provided on the inner surface of the outer conductor unit 10, specifically, there are two ridges. In the first direction, the two ridges 131 are located on the same side of the accommodating area 310 and each ridge 131 protrudes toward the accommodating area 310, for example, the ridges 131 are located on the first side 11c and protrude toward the accommodating area 310, or on the second side 11d and protrude toward the accommodating area 310, so as to protrude toward the heated aerosol generating product 200. The inner surface of the outer conductor unit 10 is designed to be deformed by at least two ridges 131, and the energy field distribution in the accommodating cavity 11 can be adjusted and the energy field can be compressed by providing at least two ridges 131. Specifically, the matrix and local uniformity of the energy field distribution can be optimized, thereby ensuring the centralization of the overall field and the uniformity of the local field, optimizing the aerosol volume while ensuring the aerosol output speed, preventing the aerosol generating product 200 from being partially burned, and improving the taste of the generated aerosol.

[0057] In some embodiments, the ridge 131 may be a pointed structure, and extend from the closed end 10a toward the open end 10b. Specifically, it may extend from the closed end 10a to the open end 10b to a position opposite to the accommodating area 310, specifically to the open end 10b. In some other embodiments, the ridge 131 may extend from a position at a set distance from the closed end 10a toward the open end 10b to a position opposite to the accommodating area 310. The ridge 131 may be configured to adjust the energy field. Specifically, the ridge 131 may play a role in gathering charges, so that the electric field here is strengthened, so that the energy field is gathered along the axial direction of the accommodating cavity 11, and is relatively uniform.

[0058] Specifically, the inner surface of the outer conductor unit 10 is partially recessed to form a groove 132. Specifically, the third side wall 103 of the outer conductor unit 10, which is arranged opposite to the first side wall 101, is recessed to form a second cylinder 10d, and then a groove 132 defined by the second cylinder 10d is formed. The groove 132 has a notch 1321 arranged toward the inner conductor unit 20, and the notch 1321 is arranged toward the first cylinder 10c, and its two oppositely arranged edges are located at the joint of the first cylinder 10c and the second cylinder 10d, and then two convex ridges 131 are formed correspondingly, that is, the convex ridge 131 can be formed at the bending point between the fifth side wall 105 and the sixth side wall 106. It can be understood that in some other embodiments, the convex ridge 131 is not limited to being formed by the inner part of the outer conductor unit 10 being recessed.

[0059] In the present embodiment, the inner conductor unit 20 is at least partially installed in the accommodating cavity 11, and can be connected to the outer conductor unit 10, so as to introduce the microwave generated by the microwave generating unit into the accommodating cavity 11. In the present embodiment, the inner conductor unit 20 is located in the second cylinder 10d, and can extend from the second cavity 11b to the first cavity 11a, and can include a microwave radiation structure 21 and a microwave matching structure 22. The microwave radiation structure 21 extends from the second cavity 11b to the first cavity 11a, and one end thereof is in ohmic contact with the closed end 10a of the outer conductor unit 10, and the other end extends along the axial direction of the outer conductor unit 10 to form a free end. Specifically, in some embodiments, the microwave radiation structure 21 can be inserted on the end wall 14, and in some other embodiments, the microwave radiation structure 21 can directly abut against the end wall 14. The microwave radiation structure 21 can be a solid columnar body, and can extend from the end wall 14 toward the direction where the opening 12 is located. The microwave matching structure 22 is arranged in the outer conductor unit 10, specifically in the second cavity 11b, and is spaced apart from the microwave radiation structure 21, and can make ohmic contact with the closed end 10a. Specifically, in this embodiment, one end of the microwave matching structure 22 is plugged into the end wall 14, and the other end extends along the axial direction of the second cavity 11b to form a free end. In some other embodiments, the microwave matching structure 22 can be against the end wall 14. In some embodiments, the microwave matching structure 22 can be in the shape of a column or a combination of two other three-dimensional structures (such as a shape formed by splicing a rectangular parallelepiped and a columnar body). The microwave matching structure 22 can be a magnetic coupling or electric coupling structure, or other structures that can achieve microwave matching, which can be used to couple microwave energy into the accommodating cavity 11.

[0060] In this embodiment, in the first direction, the microwave radiation structure 21 and the two ridges 131 are located on the same side of the accommodating area 310, and in the second direction, the microwave radiation structure 21 is located between two ridges 131. The minimum distance between the two ridges 131 located on two opposite sides of the microwave radiation structure 21 in the second direction is less than the length of the accommodating area 310 in the second direction, and the maximum distance D1 between the two ridges 131 in the second direction is less than or equal to the length D2 of the accommodating area 310 in the second direction. The shape and size of the accommodating area 310 can be adapted to the cross-sectional shape and size of the heated aerosol generating article 200. When the aerosol generating article 200 is cylindrical, the length D2 of the accommodating area 310 in the second direction is equal to the diameter of the heated aerosol generating article 200; when the aerosol generating article 200 is non-cylindrical, such as when the cross section is square or rectangular, the length D2 of the accommodating area 310 in the second direction is equal to the length or width of the aerosol generating article 200 in the second direction. Alternatively, in some embodiments, the maximum distance D1 between the two ridges 131 is less than or equal to 80% of the length D2 of the accommodation area 310 in the second direction. Under this ratio, the focused energy field can be ensured to be relatively uniform.

[0061] like Figure 4As shown, in this embodiment, the microwave heating assembly may include a fixing member 30, which is arranged in the accommodating cavity 11 and located at the open end 10b, for fixing the aerosol generating product 200. In this embodiment, the outer conductor unit 10 also includes a supporting wall 15, which may be located between the first cavity 11a and the second cavity 11b, and connected to the first side wall 101 and the second side wall 102. The fixing member 30 is located on the supporting wall 15. The supporting wall 15 is arranged parallel to the end wall 14, and a set distance is left between the two. In some other embodiments, the supporting wall 15 can be omitted, and the fixing member 30 can be directly placed on the end wall 14. In the present embodiment, the fixing member 30 is generally cylindrical, and is a hollow structure with one end open, and a receiving cavity 31 may be formed inside the fixing member 30. The receiving cavity 31 is located in the first cavity 11a, and the receiving area 310 is formed in the receiving cavity 31. The shape and size of the cross section of the receiving area 310 may be matched with the shape and size of the cross section of the receiving cavity 31, that is, the receiving cavity 31 may be tightly matched with the aerosol generating product 200. The cross section of the receiving cavity 31 may be generally circular. The receiving cavity 31 may be used to receive the aerosol generating product 200. In the present embodiment, the inner diameter of the receiving cavity 31 may be matched with the outer diameter of the aerosol generating product 200. In some other embodiments, the cross-sectional size of the receiving area 310 may be smaller than the cross-sectional size of the receiving cavity 31. In some embodiments, the fixing member 30 may include a cylinder wall 32, and a notch 321 may be provided on the side of the cylinder wall 32 facing the ridge 131, that is, the notch 321 faces the first direction 11c and is arranged opposite to the second side 11d; the edge of the notch 321 abuts against the inner surface of the outer conductor unit 10 and is located on the side opposite to the ridge 131 and the groove 132. The microwave radiation structure 21 may be arranged on the outer side of the cylinder wall 32, and may be at least partially placed in the notch 321. The cylinder wall 32 is provided with a receiving groove 3211, which may be extended along the axial direction of the fixing member 32 and located on the inner side of the notch 321, and its cross section may be roughly circular, so that part of the microwave radiation structure 21 can be accommodated therein.

[0062] like Figure 3 and Figure 4As shown, in this embodiment, the aerosol generating device further includes a microwave feeding unit 40, which is mounted on the outer conductor unit 10. Specifically, the microwave feeding unit 40 is embedded in the side wall of the outer conductor unit 10. Specifically, the side wall of the outer conductor unit 10 may be provided with a feeding hole 16, and the microwave feeding unit 40 may be installed at the feeding hole 16, and partially inserted into the accommodating cavity 11, and connected to the inner conductor unit 20. And the microwave feeding unit 40 is also connected to a microwave generating unit (not shown). In this embodiment, the microwave feeding unit 40 may be connected to the microwave matching structure 22, and connected to the microwave generating unit (not shown) through a coaxial connector or a microstrip line, for feeding the microwave generated by the microwave generating unit (not shown) into the accommodating cavity 11 through the inner conductor unit 20. In some embodiments, the microwave feeding unit 40 may be made of metal material, preferably, it may be made of metal aluminum or copper. Further, its outer surface may be plated with a silver or gold coating.

[0063] like Figure 5 , Figure 6 , Fig.12 and Fig.13 As shown, compared with conventional aerosol generating devices, the aerosol generating device in this embodiment can concentrate the energy field in the accommodating chamber 11 in a certain area by providing at least two ridges 131 on the inner surface of the accommodating chamber 11, and the energy in the area is more evenly distributed in the axial direction.

[0064] Figure 2 and Figure 7 As shown, when the interval D1 between the two ridges in the aerosol generating device is set to be less than or equal to 80% of the diameter D2 of the aerosol generating product 200, the energy field in the accommodating cavity 11 is concentrated in a certain area, and the energy in the area is more evenly distributed in the axial direction.

[0065] Figures 8 to 9 The second embodiment of the aerosol generating device of the present invention is shown, which differs from the first embodiment in that the outer conductor unit 10 can be composed of a first cylinder 10c and a second cylinder 11d with a circular cross-section. The microwave matching structure 22 and the microwave radiating structure 21 are coaxially connected and integrally formed.

[0066] like Figures 10 to 13 As shown, compared with conventional aerosol generating devices, the aerosol generating device in this embodiment can concentrate the energy field of the accommodating cavity 11 in a certain area by providing at least two ridges 131 on the inner surface of the outer conductor unit 10, and the energy in the area is more evenly distributed in the axial direction.

[0067] Fig.14A third embodiment of the aerosol generating device of the present invention is shown, which differs from the first embodiment in that the cross-section of the outer conductor unit 10 can be a regular shape, such as a square, and the fixing member 30 can be directly accommodated in the accommodating cavity 11 and located on the end wall 14.

[0068] It can be understood that the above embodiments only express the preferred implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the patent scope of the present invention. It should be pointed out that, for ordinary technicians in this field, the above technical features can be freely combined without departing from the concept of the present invention, and several deformations and improvements can be made, which all belong to the protection scope of the present invention. Therefore, all equivalent changes and modifications made to the scope of the claims of the present invention should belong to the coverage of the claims of the present invention.

Claims

1. A microwave heating assembly, characterized in that: It comprises an inner conductor unit (20) and an outer conductor unit (10); The outer conductor unit (10) comprises a closed end (10a), an open end (10b) opposite to the closed end (10a), and a receiving cavity (11) formed between the closed end (10a) and the open end (10b); a receiving area (310) for receiving the aerosol generating product (200) is formed in the receiving cavity (11); the receiving cavity (11) comprises a first direction and a second direction which are arranged perpendicular to the axial direction of the aerosol generating product (200); the first direction is perpendicular to the second direction; The inner surface of the outer conductor unit (10) is provided with two ridges (131) protruding toward the accommodating area (310), and the ridges (131) extend in a direction from the closed end (10a) toward the open end (10b); The inner conductor unit (20) is at least partially installed in the accommodating cavity (11), and comprises a microwave radiating structure (21); in the first direction, the microwave radiating structure (21) and the two convex ribs (131) are located on the same side of the accommodating area (310); in the second direction, the microwave radiating structure (21) is located between the two convex ribs (131), and the minimum distance between the two convex ribs (131) on two opposite sides of the microwave radiating structure (21) in the second direction is less than the length of the accommodating area (310) in the second direction.

2. The microwave heating assembly according to claim 1, characterized in that: The convex ridge (131) extends from the closed end (10a) toward the open end (10b) to a position arranged opposite to the accommodating area (310); or extends from a position at a set distance from the closed end (10a) toward the open end (10b) to a position arranged opposite to the accommodating area (310).

3. The microwave heating assembly according to claim 1, characterized in that: The maximum distance between the two convex edges (131) in the second direction is less than or equal to the length of the accommodating area (310) in the second direction; The length of the two ridges (131) in the second direction is less than or equal to 80% of the length of the accommodating area (310) in the second direction.

4. The microwave heating assembly according to claim 1, characterized in that: The accommodating chamber (11) comprises a first chamber (11a) for accommodating the aerosol generating product (200) and a second chamber (11b) connected to the first chamber (11a); The convex ridge (131) is located on the inner surface of the first cavity (11a).

5. The microwave heating assembly according to claim 4, characterized in that: The outer conductor unit (10) comprises a first side wall (101) and a second side wall (102) connected axially; the first side wall (101) defines the first cavity (11a); the second side wall (102) defines the second cavity (11b); The inner conductor unit (20) extends from the second cavity (11b) to the first cavity (11a); A microwave feeding hole (16) is formed on the second side wall (102), and the microwave feeding hole (16) is in communication with the second cavity (11b) of the accommodating cavity (11).

6. The microwave heating assembly according to claim 2, characterized in that: The inner surface of the outer conductor unit (10) is partially recessed to form a groove (132), wherein the groove (132) has a notch (1321) disposed toward the inner conductor unit (20); two oppositely disposed edges of the notch (1321) form two convex ridges (131).

7. The microwave heating assembly according to claim 1, characterized in that: The outer conductor unit (10) comprises at least a first cylinder (10c) and a second cylinder (10d) which are spliced ​​and interpenetrating with each other; the cross-sectional dimension of the first cylinder (10c) is greater than or equal to the cross-sectional dimension of the second cylinder (10d), and the axis of the first cylinder (10c) is parallel to the axis of the second cylinder (10d); The convex ridge (131) is formed at the joint between the first cylinder (10c) and the second cylinder (10d).

8. The microwave heating assembly according to claim 1, characterized in that: The inner conductor unit (20) comprises a microwave matching structure (22); The microwave matching structure (22) is arranged in the accommodating cavity (11) and is in ohmic contact with the closed end (10a), and extends in the direction of the open end (10b); the microwave radiation structure (21) and the microwave matching structure (22) are arranged at intervals, and are in ohmic contact with the closed end (10a); Alternatively, the microwave matching structure (22) is arranged in the accommodating cavity (11) and is in ohmic contact with the closed end (10a), and is coaxially connected to the microwave radiating structure (21), and is integrally formed.

9. The microwave heating assembly according to claim 1, characterized in that: It also includes a fixing member (30), wherein the fixing member (30) is arranged in the accommodating cavity (11) and is located at the opening end (10b); The fixing member (30) is cylindrical, a receiving cavity (31) for receiving the aerosol generating product (200) is formed in the fixing member (30), and the receiving area (310) is formed in the receiving cavity (31); The fixing member (30) comprises a cylindrical wall (32), a notch (321) being provided on a side of the cylindrical wall (32) facing the convex ridge (131), and an edge of the notch (321) abutting against an inner surface of the outer conductor unit (10); The cylinder wall (32) is provided with a receiving groove (3211) for receiving at least a portion of the microwave radiation structure (21); the receiving groove (3211) is located on the inner side of the notch (321).

10. An aerosol generating device, characterized in that: It comprises the microwave heating component according to any one of claims 1 to 9, a microwave feeding unit (40) connected to the inner conductor unit (20) of the microwave heating component, and a microwave generating unit connected to the microwave feeding unit (40).

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