Aerosol generating device and microwave heating assembly

Abstract

The invention relates to an aerosol generating device and a microwave heating assembly, and the microwave heating assembly comprises an outer conductor unit which comprises a closed end and an open end which are oppositely arranged; the inner side of the outer conductor unit defines a cavity, and the cavity is located between the open end and the closed end and comprises a first accommodating area; the inner conductor unit is at least partially arranged in the cavity, located in the second direction and arranged towards the first accommodating area, the inner conductor unit comprises a first radiation section and a second radiation section, the first radiation section is lengthwise arranged between the closed end and the open end, and one end of the first radiation section is connected to the closed end; the second radiation section comprises a fixed end and a free end; the fixed end is connected to one end, facing the opening end, of the first radiation section; the free end extends towards the closed end; the temperature measuring unit is installed in the first containing area and located in the second direction, and the distance between the temperature measuring unit and the second radiation section is smaller than half of the size of the first containing area in the second direction. The microwave heating assembly can directly and accurately measure the temperature of the aerosol generating substrate.

Description

Technical Field

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

[0002] Currently, the heating temperature of the heat-not-burn technology is generally between 250 and 350 °C. Compared with ordinary combustible aerosol generation matrices, the heat-not-burn aerosol generation matrix can significantly reduce the release of harmful substances in the medium while retaining the taste of traditional aerosol generation matrices. The microwave heating technology is applied to aerosol generating devices. The aerosol generating device using the microwave heating technology has the advantages of high heating efficiency and fast aerosol generation.

[0003] Currently, microwave heating usually adopts an indirect temperature measurement method. The temperature of the aerosol generation matrix and a certain medium is measured indirectly, and then the true temperature of the medium is predicted by an algorithm inversion method for temperature control, which easily leads to inaccurate temperature measurement and thus cannot meet the requirement of precise temperature control. Summary of the Invention

[0004] The object of the present invention is to provide an improved aerosol generating device and a microwave heating component.

[0005] The technical solution adopted by the present invention to solve its technical problems is: constructing a microwave heating component, including:

[0006] An outer conductor unit, including a closed end and an open end; the closed end and the open end are oppositely arranged; a cavity is defined inside the outer conductor unit, and the cavity is located between the open end and the closed end and includes a first accommodating area for accommodating an aerosol generation matrix; the first accommodating area includes a first direction and a second direction intersecting with the first direction, and the first direction is the direction from the closed end towards the open end;

[0007] An inner conductor unit, at least partially disposed in the cavity, located in the second direction, and disposed towards the first accommodating area, which includes a first radiation section and a second radiation section installed in the cavity. The first radiation section is longitudinally arranged between the closed end and the open end, and one end is connected to the closed end; the second radiation section includes a fixed end and a free end; the fixed end is connected to one end of the first radiation section towards the open end; the free end extends towards the closed end;

[0008] A temperature measurement unit, at least partially installed in the first accommodating area, located in the second direction, and the distance to the second radiation section is less than half of the size of the first accommodating area in the second direction.

[0009] In some embodiments, the outer conductor unit includes a support wall,

[0010] The first accommodating area is formed between one end of the supporting wall opposite to the opening end;

[0011] The temperature measuring unit is installed on the supporting wall and partially located in the first accommodating area.

[0012] In some embodiments, mounting holes are provided on the supporting wall, and the temperature measuring unit is installed in the mounting holes and is in interference fit with the mounting holes.

[0013] In some embodiments, in the first direction, the length of the second radiation section is less than or equal to the depth of the first accommodating area;

[0014] In the second direction, the distance from the central axis of the mounting hole to the free end is less than half of the size of the first accommodating area in the second direction.

[0015] In some embodiments, the cavity further includes a second accommodating area for accommodating the inner conductor unit; the first accommodating area and the second accommodating area are in communication with each other and have parallel axes; the depth of the second accommodating area is greater than the depth of the first accommodating area.

[0016] In some embodiments, a fixing unit is further included, and the fixing unit is disposed in the first accommodating area, and an accommodating cavity for accommodating the aerosol generating substrate is defined inside.

[0017] The temperature measuring unit is disposed through the accommodating cavity.

[0018] In some embodiments, the temperature measuring unit includes a housing and a temperature measuring element disposed in the housing.

[0019] In some embodiments, the housing includes a first end portion facing the opening end and a second end portion opposite to the first end portion;

[0020] A heat conducting and insulating structure is disposed between the temperature measuring element and the first end portion.

[0021] In some embodiments, at least a part of the second radiation section is disposed parallel to the first radiation section.

[0022] In some embodiments, a connecting section is disposed between the second radiation section and the first radiation section;

[0023] The connecting section is linear or curved.

[0024] The present invention also constructs an aerosol generating device, which includes the microwave heating component and the microwave feeding unit described in the present invention; the microwave feeding unit is installed on the side wall of the outer conductor unit and is connected to the inner conductor unit.

[0025] Implementing the aerosol generating device and the microwave heating component of the present invention has the following beneficial effects: By arranging the first radiation section and the second radiation section in the cavity where the inner conductor is installed in the microwave heating component, and longitudinally arranging the first radiation section between the second end and the first end, with one end connected to the second end, and connecting the fixed end of the second radiation section to the end of the first radiation section facing the first end, and its free end extending towards the second end, the electric field in the cavity can be made to be evenly distributed in the extending direction of the first radiation section. By arranging the temperature measuring unit in the second direction of the first accommodating area in the cavity of the outer conductor unit, and making the distance between the temperature measuring unit and the second radiation section less than half of the size of the first accommodating area in the second direction, the direct and accurate temperature measurement of the aerosol generating matrix can be realized, avoiding the experience problems caused by inaccurate temperature measurement, and reducing the hysteresis caused by the time consumed in the heat transfer path and the system hysteresis caused by system inversion, and avoiding the problem of temperature control lag. Description of the Drawings

[0026] The present invention will be further described below in conjunction with the drawings and embodiments. In the drawings:

[0027] Figure 1 is a partial structural schematic diagram of the aerosol generating device in some embodiments of the present invention;

[0028] Figure 2 is Figure 1 a partial structural cross-sectional view of the aerosol generating device shown;

[0029] Figure 3 is Figure 1 a structural schematic diagram of the outer conductor unit of the aerosol generating device shown;

[0030] Figure 4 is Figure 3 a cross-sectional view of the outer conductor unit shown;

[0031] Figure 5 is Figure 1 a structural schematic diagram of the fixing unit of the aerosol generating device shown;

[0032] Figure 6 is Figure 5 a cross-sectional view of the fixing unit shown;

[0033] Figure 7 is Figure 1 a structural schematic diagram of the inner conductor unit of the aerosol generating device shown;

[0034] Figure 8 is Figure 1 Schematic diagram of the support base structure of the aerosol generating device shown;

[0035] Figure 9 is Figure 1 Schematic diagram of the temperature measuring unit structure of the aerosol generating device shown;

[0036] Figure 10 is Figure 9 Cross-sectional view of the temperature measuring unit shown. Detailed implementation manners

[0037] For a clearer understanding of the technical features, objectives, and effects of the present invention, the detailed implementation manners of the present invention will now be described in detail with reference to the accompanying drawings. In the following description, it should be understood that the orientation or positional relationships indicated by "upper", "left", "right", "horizontal", "vertical", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are specific orientations and operations for the purpose of facilitating the description of the technical solution, rather than indicating that the device or element referred to must have a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0038] It should also be noted that, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection", "fixation", "setting" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral body; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements. When an element is referred to as being "above" or "below" another element, the element can be "directly" or "indirectly" located above the other element, or there may also be one or more intermediate elements. Terms such as "first", "second", "third", etc. are only for the convenience of describing the technical solution, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined by "first", "second", "third", etc. may explicitly or implicitly include one or more of such 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 specific circumstances.

[0039] Figure 1Figure 1 shows a first embodiment of the aerosol generating device of the present invention. The aerosol generating device can heat an aerosol forming substrate by feeding in microwaves to generate an aerosol for a user to inhale. The aerosol forming substrate can be detachably arranged in the aerosol generating device. In some embodiments, the aerosol forming substrate is columnar. Specifically, the aerosol forming substrate can be cylindrical and can be a solid material in the form of filaments, granules or flakes made from leaves, flowers and / or stems of plants, and fragrance components can be further added to the solid material.

[0040] As Figure 1 shown, in some embodiments, the aerosol generating device can include a housing (not shown), a microwave heating component and a microwave generating unit (not shown). The microwave heating component is housed in the housing (not shown) and is configured to generate microwaves to form an energy field inside after accessing microwaves, thereby heating the aerosol forming substrate. The microwave generating unit (not shown) can be connected to the microwave heating component for feeding in microwaves.

[0041] As Figures 1 to 2 shown, in some embodiments, the microwave heating component can include an outer conductor unit 10 and an inner conductor unit 30. The inner conductor unit 30 is at least partially arranged in the outer conductor unit 10 and can access microwaves into the outer conductor unit 10, so that microwaves can be generated in the outer conductor unit 10 to form an energy field, and thereby microwave resonance can be used to heat the aerosol forming substrate.

[0042] As Figure 3 and Figure 4 shown, in some embodiments, the outer conductor unit 10 is made of a metal material or other highly conductive materials. Exemplarily, the outer conductor unit 10 can be made of gold, silver, copper, aluminum, iron, gold-containing alloy, aluminum-containing alloy, copper-containing alloy, iron-containing alloy, or stainless steel, etc., or the outer conductor unit includes a substrate layer made of a non-metallic material and a metal coating coated on the inner surface of the substrate layer. In this embodiment, the outer conductor unit 10 can be made of aluminum alloy.

[0043] In some embodiments, the outer conductor unit 10 is a cylindrical structure and can be an irregular shape. In some other embodiments, the outer conductor unit 10 can be a regular shape, such as a cuboid shape or a cylindrical shape. In some embodiments, the outer conductor unit 10 can include a closed end 10a and an open end 10b; the closed end 10a and the open end 10b are oppositely arranged. The open end 10b can be used for loading the aerosol forming substrate. The closed end 10a can be closed by providing an end wall or a base 70.

[0044] In some embodiments, the outer conductor unit 10 at least includes a first side wall 101, a second side wall 102, a support wall 103, and a third side wall 104. The first side wall 101 and the second side wall 102 are axially connected and non-coaxially arranged, showing a stepped arrangement. The support wall 103 is disposed between the first side wall 101 and the second side wall 102, is connected to the first side wall 101 and the second side wall 102 and is perpendicular to the first side wall 101 and the second side wall 102 respectively. The support wall 103 can play a role in fixing and supporting the fixing unit 20 and the inner conductor unit 30. In some other embodiments, the support wall 103 can be omitted. The third side wall 104 is disposed opposite to the first side wall 101 and the second side wall 102.

[0045] In this embodiment, a cavity 11 is defined inside the outer conductor unit 10. Specifically, the cavity 11 can be defined by the first side wall 101, the second side wall 102, the support wall 103, the third side wall 104, and an end wall 105. The cavity 11 can accommodate at least a part of the inner conductor unit 30 and allow microwave to be fed in. The cavity 11 can be located between the closed end 10a and the open end 10b, that is, the closed end 10a and the open end 10b are located at both ends of the cavity 11.

[0046] In some embodiments, the cavity 11 can include a first chamber 111 and a second chamber 112 that communicate with each other. The first chamber 111 and the second chamber 112 can be arranged in sequence from the open end 11b to the closed end 11a. The open end 11b is located at one end of the first chamber 111. The support wall 103 is located between the first chamber 111 and the second chamber 112 and is used to separate the first chamber 111 and the second chamber 112. A communication hole 1031 is provided on the support wall 103, and the first chamber 111 and the second chamber 112 communicate through the communication hole 1031. The first chamber 111 and the second chamber 112 are non-coaxially arranged, and the axes of the first chamber 111 and the second chamber 112 are parallel to each other. The first chamber 111 can be defined by the first side wall 101, the support wall 103, and a part of the third side wall 104. The second chamber 112 can be defined by the second side wall 102 and a part of the third side wall 104. Among them, the first chamber 111 can be used for loading the aerosol generation matrix and providing a space for microwave resonance. The second chamber 112 can be used to provide a microwave matching space. In some embodiments, the cavity 11 is not limited to including the first chamber 111 and the second chamber 112. The number of chambers can be one or multiple, and their relative positions are not limited to axial distribution and can also be distributed left and right. One end of the second chamber 112 far from the first chamber 111 is closed by providing a base 70, or can also be closed by forming an end wall at the closed end 10a of the outer conductor unit 10.

[0047] In some embodiments, the first chamber 111 may include a first accommodating area 111a and a second accommodating area 111b. The first accommodating area 111a is formed between the support wall 103 and the open end 10b and is used to accommodate the fixing unit 20, and thus to accommodate the aerosol generating substrate. In some other embodiments, the first accommodating area 111a may be directly used to accommodate the aerosol generating substrate. The first accommodating area 111a may include a first direction and a second direction. The first direction is the direction from the closed end 10a towards the open end 10b, which may be the Z-axis direction. The second direction may intersect with the first direction, the second direction may be perpendicular to the first direction, and the second direction may be the X-axis direction. The second accommodating area 111b is located in the second direction of the first accommodating area 111a and may be used to accommodate at least a part of the inner conductor unit 30. The first accommodating area 111a and the second accommodating area 111b communicate with each other, and their axes are parallel. The depth of the second accommodating area 111b is greater than the depth of the first accommodating area 111a.

[0048] As Figure 5 and Figure 6 shown, in some embodiments, the microwave heating assembly further includes a fixing unit 20. The fixing unit 20 may be columnar and have a structure with both ends penetrating. An accommodating cavity 21 may be formed inside it for accommodating the aerosol generating substrate. In some embodiments, the fixing unit 20 may include a first end 21a and a second end 21b. The first end 21a may be arranged towards the open end 10b, and the second end 21b is arranged opposite to the first end 21a. The aerosol generating substrate may be inserted from the first end 21a towards the second end 21b. A boss 22 may be provided on the inner side wall of the fixing unit 20, and the boss 22 may be arranged close to the second end 21a. There may be a plurality of the bosses 22, and the plurality of bosses 22 are arranged at intervals. Each boss 22 may be in a tight fit with the outer peripheral wall of the aerosol generating substrate, and thus be used for fixing the aerosol generating substrate. The interval between two adjacent bosses 22 may form an air flow channel.

[0049] In some embodiments, the fixing unit 20 may be made of a lossless or low-loss dielectric material. Exemplarily, the fixing unit 20 is made of Teflon, PEEK, quartz, alumina ceramic, or various composite wave-transparent materials, etc. It can ensure that the relative positions of the aerosol generating substrate and the inner conductor unit 30 remain unchanged during heating, and the fixing unit 20 can ensure the consistency and stability of heating. At the same time, it can effectively prevent the aerosol generating substrate from leaking onto the microwave heating assembly, resulting in the failure of the microwave heating assembly, and it is also convenient for users to clean the oil stains caused by repeated suction.

[0050] As Figure 7As shown, in some embodiments, in this embodiment, the inner conductor unit 30 may be made of a metallic material or other highly conductive materials. Exemplarily, the inner conductor unit 30 may be made of gold, silver, copper, aluminum, iron, gold-containing alloy, aluminum-containing alloy, copper-containing alloy, iron-containing alloy, or stainless steel, etc., or the inner conductor unit 30 may include a substrate layer made of a non-metallic material and a metallic coating coated on the outer surface of the substrate layer. In this embodiment, the inner conductor unit 30 may be made of stainless steel plated with gold.

[0051] In some embodiments, the inner conductor unit 30 is located in the second direction of the first accommodation area 111a and is arranged facing the first accommodation area 111a. It can be used to transmit microwaves and improve the microwave transmission rate. When the microwaves are conducted in the cavity 11, attenuation is not likely to occur, improving the effect of the microwaves acting on the aerosol generation matrix, enabling the microwaves to act on the aerosol generation matrix efficiently and quickly, which is conducive to meeting the user's usage requirements.

[0052] In some embodiments, the cross-section of the inner conductor unit 30 may be generally circular, and its diameter may be 1 mm. It can be understood that in some other embodiments, the cross-section of the inner conductor unit 30 is not limited to being circular and may be polygonal, such as square, pentagonal, or hexagonal. The inner conductor unit 30 includes a first radiation section 31, a second radiation section 32, and a connection section 33 installed in the cavity 11. In this embodiment, the first radiation section 31, the second radiation section 32, and the connection section 33 are all one and are formed by bending the inner conductor unit 30 once. In some other embodiments, the inner conductor unit 30 may be bent multiple times to form multiple bent radiation sections. The first radiation section 31, the connection section 33, and the second radiation section 32 are connected in sequence to form a radiation unit.

[0053] In some embodiments, the first radiation section 31 may be longitudinally arranged between the closed end 10a and the open end 10b and partially located in the first chamber 111. Specifically, the first radiation section 31 may be straight and is connected to the closed end 10a by connecting to the base 70, and the other end may extend towards the open end 10b. In some other embodiments, the first radiation section 31 may be arranged in a wavy shape or a spiral shape. In some embodiments, a jack 71 for inserting the first radiation section 31 is provided on the base 70, and the first radiation section 31 may be in interference fit with the jack 71.

[0054] In some embodiments, the second radiation section 32 is located in the first chamber 111 and is longitudinally arranged. It includes a fixed end 32a and a free end 32b. The fixed end 32a can be connected to one end of the first radiation section 31 facing the opening end 10b through a connecting section 33, and the free end 32b extends towards the closed end 10a. The second radiation section 32 can be straight and can be arranged parallel to the first radiation section 31 as a whole. In this embodiment, the second radiation section 32 can be formed by bending an inner conductor unit 30 by 180 degrees. In some other embodiments, the second radiation section 32 can be arranged in a wavy or spiral shape. In some other embodiments, a part of the second radiation section 32 can also be parallel to the first radiation section 31. Since the end of the inner conductor unit 30 is a wave antinode of the standing wave field and the electric field near it is extremely strong, by arranging the second radiation section 32 and the first radiation section 31 in a bent-back manner, the inner conductor unit 30 can have at least two ends in the part located in the first chamber 111, thereby effectively improving the non-uniformity of the electric field near a single end of the inner conductor unit 30 in the cavity 11, improving the heating uniformity of the aerosol generating matrix, solving the problem that the aerosol generating matrix is prone to caking locally, and at the same time, through the bent-back arrangement, the height of the inner conductor unit 30 can be effectively reduced, and then the aerosol generating device can be designed to be miniaturized.

[0055] In some embodiments, the length of the second radiation section 32 can be less than the length of the first radiation section 31, and its length is less than the depth of the first accommodating region 111a. In some other embodiments, the second radiation section 32 can also be equal to the depth of the first accommodating region 111a. Specifically, the length of the first radiation section 31 can be 31 mm, and the length of the second radiation section 32 can be 9 mm. Compared with the length of 30 mm of the inner conductor unit 30 with a quarter wavelength in the related art, the length of 31 mm in this embodiment significantly reduces the height of the inner conductor unit 30. In some other embodiments, the length of the second radiation section 32 can also be approximately equal to the length of the first radiation section 31. The interval between the first radiation section 31 and the second radiation section 32 can be 1 mm. It can be understood that in some other embodiments, the interval between the first radiation section 31 and the second radiation section 32 is not limited to 1 mm.

[0056] In some embodiments, both ends of the connecting section 33 can be respectively connected to the first radiation section 31 and the second radiation section 32, and the connecting section 33 is curved. In some embodiments, the length of the connecting section 33 can be selected to be 0.5 mm - 2 mm (including the end values 0.5 mm and 2 mm); if the length of the connecting section 33 is less than 0.5 mm, the connecting section 33 is too short, and it is easy for the first radiation section 31 and the second radiation section 32 to touch each other, affecting the radiation performance. If the length of the connecting section 33 is greater than 2 mm, the connecting section 33 is too long, and it is easy for the size of the cavity 11 to be too large, which is not conducive to the miniaturization design of the cavity 11.

[0057] As Figure 8 shown, in some embodiments, the microwave heating assembly further includes a support base 40, which can be located in the first chamber 111 and on the support wall 103. The support base 40 can be made of a lossless or low-loss dielectric material. Exemplarily, the support base 40 is made of Teflon, PEEK, quartz, alumina ceramic, or various composite wave-transparent materials, etc., or the support base 40 includes a matrix formed of a metallic material or a metallic coating provided on the outer peripheral wall of the matrix.

[0058] In some embodiments, the support base 40 can include a first base body 41. The first base body 41 can include a first support portion 41a and a second support portion 41b. The first support portion 41a is located in the first accommodation area 111a and can be used to support and fix the fixing unit 20. A limiting groove 411 is provided inside the first support portion 41a, and the limiting groove 411 faces the opening end 10b and can be used for the second end 21b of the fixing unit 20 to be inserted. The cross-sectional shape and size of the limiting groove 411 can be adapted to the cross-sectional shape and size of the fixing unit 20. The second support portion 41b is provided on one side of the first support portion 41a and can be located in the second accommodation area 111b. A first positioning hole 412 can be provided on the second support portion 41b, and the first radiation section 31 of the inner conductor unit 30 can pass through the first positioning hole 412, which can play a positioning role. A second positioning hole 413 can be provided on the first support portion 41a, which can be used for the installation and positioning of the temperature measuring unit 50.

[0059] In some embodiments, the support base 40 further includes a second base body 42. The second base body 42 can be provided on the first support portion 41a and can extend along the circumferential direction of the first support portion 41a towards the opening end 10b. The second base body 42 is generally cylindrical. A first opening 421 is provided on the side facing the second support portion 41b, and the first opening 421 can be used for the microwave radiated by the inner conductor unit 30 to be fed in. A second opening 422 is provided at the end of the second base body 42 away from the first support portion 41a, and the second opening 422 can be used for the fixing unit 20 to be loaded. A receiving cavity 423 is formed inside the second base body 42, and the receiving cavity 423 is used to receive the fixing unit 20.

[0060] As Figure 9 and Figure 10As shown, in some embodiments, the microwave heating assembly further includes a temperature measuring unit 50. The temperature measuring unit 50 can be installed on the support wall 103, in the second direction, and partially located in the first accommodation area 111a, and the distance from it to the second radiation section 32 is less than half of the size of the first accommodation area 111a in the second direction, that is, the temperature measuring unit 50 can be arranged close to the second radiation section 32. In some other embodiments, the temperature measuring unit 50 can also be wholly arranged in the first accommodation area 111a. Specifically, mounting holes 1032 can be provided on the support wall 103. The mounting holes 1032 are correspondingly communicated with the first accommodation area 111a, and the distance from the axis thereof to the free end 32b is less than half of the size of the first accommodation area 111a in the second direction. The temperature measuring unit 50 can be installed on the mounting holes 1032 and can be in interference fit with the mounting holes 1032. The temperature measuring unit 50 can sequentially penetrate into the accommodation cavity 21 of the fixing unit 20 from the mounting holes 1032 and the second positioning holes 413 and be arranged towards the opening end 10b. The temperature measuring unit 50 realizes direct and accurate temperature measurement of the aerosol generation matrix, avoids experience problems caused by inaccurate temperature measurement, and reduces the hysteresis caused by the time consumed by the heat transfer path and the system hysteresis brought by system inversion, and avoids the problem of temperature control lag.

[0061] In some embodiments, the temperature measuring unit 50 can include a housing 51 and a temperature measuring element 52. The housing 51 is used to accommodate the temperature measuring element 52 and can isolate the interference of the microwave field on the temperature measuring element 52 to prevent inaccurate temperature measurement or failure. The temperature measuring element 52 can be used to directly sense the temperature of the aerosol generation matrix.

[0062] The housing 51 can be columnar. In some embodiments, the housing 51 can be cylindrical. It can be understood that in some other embodiments, the housing 51 is not limited to being cylindrical. The housing 51 can include a first end 51a and a second end 51b, wherein the first end 51a is closed. The second end 51b is open. A receiving space 510 can be formed inside the housing 51. The receiving space 510 can be used to accommodate the temperature measuring element 52. The housing 51 is provided with a third opening 511 at the second end 51b. The third opening 511 can be used for the lead 522 of the temperature measuring element 52 to pass through.

[0063] In some embodiments, the housing 51 is made of gold, silver, copper, aluminum, iron, gold-containing alloy, aluminum-containing alloy, copper-containing alloy, iron-containing alloy, or stainless steel, etc., or the housing 51 includes a main body formed of a non-metallic material and a metal coating coated on the outside of the main body. Due to the skin effect, high-frequency current flows on the surface of the housing 51, and using a metal material or other highly conductive materials can shield the microwave.

[0064] In some embodiments, the temperature measuring element 52 may be a temperature sensor, which may include a temperature sensor body 521 and leads 522. The temperature sensor body 521 may be located at the first end 51a. The leads 522 may extend out from the second end 51b for electrical signal transmission. In some embodiments, the temperature sensor body 521 may be an NTC thermistor, a PTC thermistor, or a thermocouple.

[0065] In some embodiments, the temperature measuring element 52 and the first end 51a may be in close contact by providing a thermally conductive insulating structure (not shown). The thermally conductive insulating structure may be thermally conductive glue or potting glue, which may be injected into the housing 51 after the temperature measuring element 52 and the housing 51 are assembled.

[0066] In the present embodiment, the aerosol generating device further includes a microwave feeding unit 60, which may be installed on the side wall of the outer conductor unit 10. Specifically, a through hole 12 for embedding and installing the microwave feeding unit 60 may be formed on the second side wall 102. The microwave feeding unit 60 may be installed in the through hole 12 and may extend into the second chamber 112 to make ohmic contact with the inner conductor unit 30. In some embodiments, the microwave feeding unit 60 may be composed of a standard or non-standard RF connector, which is embedded in the side wall of the outer conductor unit 10 by threads or flanges. It may be connected to a microwave generating unit (not shown) for feeding the microwave generated by the microwave generating unit (not shown) into the inner conductor unit 30 and then feeding it into the first chamber 111 through the inner conductor unit 30.

[0067] It can be understood that the above embodiments only represent the preferred embodiments of the present invention, and the description is relatively specific and detailed, but it should not be construed as a limitation to the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, the above technical features can be freely combined, and several deformations and improvements can also be made, which all belong to the protection scope of the present invention. Therefore, all equivalent transformations and modifications made to the scope of the claims of the present invention shall fall within the scope covered by the claims of the present invention.

Claims

1. A microwave heating component, characterized in that, Comprising: An outer conductor unit (10), including a closed end (10a) and an open end (10b); the closed end (10a) and the open end (10b) are oppositely arranged; a cavity (11) is defined inside the outer conductor unit (10), and the cavity (11) is located between the open end (10b) and the closed end (10a), including a first accommodation area (111a) for accommodating an aerosol generation substrate; the first accommodation area (111a) includes a first direction and a second direction intersecting the first direction, and the first direction is the direction from the closed end (10a) towards the open end (10b); An inner conductor unit (30), at least partially disposed in the cavity (11), located in the second direction, and disposed towards the first accommodation area (111a), which includes a first radiation section (31) and a second radiation section (32) installed in the cavity (11), the first radiation section (31) is longitudinally arranged between the closed end (10a) and the open end (10b), and one end is connected to the closed end (10a); the second radiation section (32) includes a fixed end (32a) and a free end (32b); the fixed end (32a) is connected to one end of the first radiation section (31) towards the open end (10b); the free end (32b) extends towards the closed end (10a); A temperature measurement unit (50), at least partially installed in the first accommodation area (111a), located in the second direction, and the distance to the second radiation section (32) is less than half of the size of the first accommodation area (111a) in the second direction.

2. The microwave heating component according to claim 1, characterized in that, The outer conductor unit (10) includes a support wall (103), and the first accommodation area (111a) is formed between the support wall (103) and the open end (10b); The temperature measurement unit (50) is installed on the support wall (103), and part of it is located in the first accommodation area (111a).

3. The microwave heating component according to claim 2, characterized in that, An installation hole (1032) is provided on the support wall (103), and the temperature measurement unit (50) is installed in the installation hole (1032) and is in interference fit with the installation hole (1032).

4. The microwave heating component according to claim 3, characterized in that, In the first direction, the length of the second radiation section (32) is less than or equal to the depth of the first accommodation area (111a); In the second direction, the distance from the central axis of the installation hole (1032) to the free end (32b) is less than half of the size of the first accommodation area (111a) in the second direction.

5. The microwave heating component according to claim 1, characterized in that, The cavity (11) further includes a second accommodation area (111b) for accommodating the inner conductor unit (30); the first accommodation area (111a) and the second accommodation area (111b) are in communication with each other and have parallel axes; the depth of the second accommodation area (111b) is greater than the depth of the first accommodation area (111a).

6. The microwave heating component according to claim 1, characterized in that, Further comprising a fixing unit (20), the fixing unit (20) is disposed in the first accommodating area (111a), and an accommodating cavity (21) for accommodating the aerosol generating substrate is defined inside; The temperature measuring unit (50) is disposed through the accommodating cavity (21).

7. The microwave heating component according to claim 1, characterized in that, The temperature measuring unit (50) includes a housing (51) and a temperature measuring element (52) disposed in the housing (51).

8. The microwave heating component according to claim 7, characterized in that, The housing (51) includes a first end (51a) disposed toward the open end (10b) and a second end (51b) disposed opposite to the first end (51a); A heat conducting and insulating structure is disposed between the temperature measuring element (52) and the first end (51a).

9. The microwave heating component according to claim 1, characterized in that, A connecting section (33) is disposed between the second radiation section (32) and the first radiation section (31); The connecting section (33) is linear or curved.

10. An aerosol generating device, characterized in that, Comprising the microwave heating assembly according to any one of claims 1 to 9 and a microwave feeding unit (60); the microwave feeding unit (60) is installed on the side wall of the outer conductor unit (10) and is connected to the inner conductor unit (30).

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