Aerosol generation system and aerosol-generated products

Abstract

This invention discloses an aerosol generation system and its aerosol-generating product. The aerosol-generating product is cylindrical and can be inserted into a microwave heating cavity with a shielded shell to generate aerosols under microwave heating. The aerosol-generating product includes a microwave shielding structure, which is electrically connected to the shielding shell when the aerosol-generating product is inserted into the microwave heating cavity. The beneficial effect of this invention is that, by providing a shielding structure electrically connected to the shielding shell of the microwave heating cavity, the aerosol-generating product constitutes overall shielding during use, improving safety.

Description

Technical Field

[0001] This invention relates to aerosol generation technology, and more particularly to an aerosol generation system and the aerosol-generated products thereof. Background Technology

[0002] Aerosol generators atomize aerosol-generating products such as cigarettes to form smoke. This smoke, containing high levels of nicotine and flavor, effectively satisfies smokers' habitual cravings. However, traditional aerosol generators, when using a heat-not-burn method to atomize cigarettes, require a relatively long preheating time of ten to thirty seconds to reach the temperature needed for atomization. This makes it difficult to quickly atomize the cigarette into a usable smoke, resulting in aerosol generators failing to meet user experience requirements. Summary of the Invention

[0003] In view of the shortcomings of the above-mentioned technologies, the present invention provides an improved aerosol generation system and the aerosol generation product thereof.

[0004] To achieve the above objectives, the present invention provides an aerosol generating article in the form of a column, which can be inserted into a microwave heating cavity with a shielding shell to generate aerosol under microwave heating; the aerosol generating article includes a microwave shielding structure, which is electrically connected to the shielding shell when the aerosol generating article is inserted into the microwave heating cavity.

[0005] In some embodiments, the shielding structure includes a microwave shielding layer disposed on the cross-section of the aerosol-generating article, the microwave shielding layer including an elastic conductive flange that radially protrudes from the aerosol-generating article; the microwave shielding structure is electrically connected to the shielding housing via the elastic conductive flange.

[0006] In some embodiments, the microwave shielding layer is made of a metal fiber layer.

[0007] In some embodiments, the microwave shielding layer further includes a sleeve extending toward the insertion end of the aerosol-generating article.

[0008] In some embodiments, the aerosol generating article includes a cylindrical outer shell and an aerosol generating component and a filter section disposed within the outer shell.

[0009] In some embodiments, the filter segment is made of a material with microwave shielding properties.

[0010] In some embodiments, the filter segment is made of at least one of the following materials: foamed metal, conductive foam, carbon material, polymer composite material, a mixed fabric of conductive metal fibers and cellulose acetate bundles, and a mixed fiber bundle with conductive metal fibers as the core material and non-conductive fibers as the outer layer.

[0011] In some embodiments, the aerosol generating article further includes a cooling section disposed within the housing, the cooling section being located between the aerosol generating component and the filter section.

[0012] In some embodiments, the aerosol generating article includes tobacco, an aerosol forming agent, and functional particles, wherein the functional particles are capable of absorbing microwaves; the functional particles are capable of converting the absorbed microwaves into heat energy and transferring it to the tobacco and the aerosol forming agent.

[0013] In some embodiments, the emissivity of the functional particles is greater than 0.9.

[0014] In some embodiments, the aerosol generating article includes a cylindrical outer shell and an aerosol generating component and a filter section disposed within the outer shell; the aerosol generating article further includes a microwave shielding layer disposed on the end face of the filter section near the aerosol generating component and / or away from the end face of the aerosol generating component.

[0015] In some embodiments, the microwave shielding layer is made of a highly conductive and breathable material.

[0016] In some embodiments, the microwave shielding layer is made of at least one of the following: transparent electromagnetic shielding film, metal-plated thin film, microwave shielding glass, single-layer / multi-layer metal grid, composite shielding substrate made of transparent conductive film and glass, foamed metal, carbon material, and microwave shielding polymer composite material.

[0017] An aerosol generation system is provided, comprising an aerosol generation article as described in any of the preceding claims and an aerosol generation device for microwave heating the aerosol generation article, the aerosol generation device comprising a microwave heating cavity into which the aerosol generation article is detachably inserted, the microwave heating cavity comprising a shielding shell electrically connected to the microwave shielding structure.

[0018] The beneficial effects of this invention are: the aerosol generating product, by setting a shielding structure electrically connected to the shielding shell of the microwave heating cavity, constitutes the shielding of the entire machine during use, thereby improving the safety of use. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of an aerosol generation system in some embodiments of the present invention.

[0020] Figure 2 for Figure 1 The diagram shows a schematic of the separation between the aerosol generating product and the aerosol generating device in the aerosol generating system.

[0021] Figure 3 for Figure 1 The circuit diagram of the aerosol generation device in the aerosol generation system is shown.

[0022] Figure 4 This is a circuit block diagram of an aerosol generating device in some other embodiments of the present invention.

[0023] Figure 5 This is a circuit block diagram of an aerosol generating device in some embodiments of the present invention.

[0024] Figure 6 The circuit diagrams of the aerosol generating device in some embodiments of the present invention are shown below.

[0025] Figure 7 This is a circuit block diagram of an aerosol generating device in some other embodiments of the present invention.

[0026] Figure 8 This is a microwave control flowchart of an aerosol generating device in some embodiments of the present invention.

[0027] Figure 9 This is a schematic diagram of the microwave field strength distribution of the aerosol generating device in some embodiments of the present invention.

[0028] Figure 10 This is a schematic diagram of the internal structure of the atomizing chamber of the aerosol generating device in some embodiments of the present invention.

[0029] Figure 11 This is a schematic diagram of the internal structure of the aerosol-generated product in some embodiments of the present invention.

[0030] Figure 12 This is a schematic diagram of the internal structure of the aerosol-generated product in some other embodiments of the present invention.

[0031] Figure 13 This is a schematic diagram of the internal structure of the aerosol-generated product in some embodiments of the present invention.

[0032] Figure 14 for Figure 13 The diagram shown is a reference image illustrating the usage status of aerosol-generated products.

[0033] Figure 15 This is a schematic diagram of the internal structure of the aerosol-generated product in some embodiments of the present invention.

[0034] Figure 16 This is a schematic diagram of the internal structure of the aerosol-generated article in some other embodiments of the present invention.

[0035] Figure 17 This is a schematic diagram of the atomizing cavity of the aerosol generating device in some embodiments of the present invention.

[0036] Figure 18 This is a partially enlarged structural schematic diagram of the aerosol-generated product in some embodiments of the present invention.

[0037] Figure 19 for Figure 18 The diagram shows a cross-sectional structure of the functional particles in the aerosol-generated product.

[0038] Figure 20 This is a schematic diagram of the aerosol generating device in some embodiments of the present invention. Detailed Implementation

[0039] To facilitate understanding of the present invention, a more complete description will be provided below. The invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the present invention will be more thorough and complete.

[0040] It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected to" another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. When terms such as "vertical," "horizontal," "left," "right," "upper," "lower," "inner," "outer," and "bottom" are used to indicate orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, and are used only for ease of description, not to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, terms such as "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0042] Figure 1 and Figure 2An aerosol generation system 1 according to some embodiments of the present invention is shown. The aerosol generation system 1 may include an aerosol generation device 10 and an aerosol generation article 20 detachably connected to the aerosol generation device 10. The aerosol generation device 10 is used to heat the aerosol generation matrix of the aerosol generation article 20 to generate an aerosol. In some embodiments, the aerosol generation device 10 may be a heated non-combustible aerosol generation device and may be handheld, which can be used to heat the aerosol generation article 20 containing solid tobacco, such as a cigarette. It is understood that the aerosol generation article 20 is not limited to a cigarette; it may also be a tobacco cake or tobacco block. It is further understood that the aerosol generation article 20 may also be an aerosol generation article including liquid e-liquid.

[0043] As shown in the figure, in some embodiments, the aerosol generating device 10 may include a microwave generator 11, an atomizing cavity 12 connected to the microwave generator 11, and a mounting base 13 disposed within the atomizing cavity 12 for fixing the aerosol generating article 20. The atomizing cavity 12 defines a microwave heating cavity. The top wall of the atomizing cavity 12 has an opening 120 connecting the microwave heating cavity to the outside, allowing the aerosol generating article 20 to be inserted into the microwave heating cavity. The microwave generator 11 feeds microwaves into the microwave heating cavity, and its operating frequency band can be 915MHz-30GHz. The mounting base 13 is disposed within the microwave heating cavity for detachably fixing the aerosol generating article 20 therein, thereby subjecting the aerosol generating article 20 to microwave heating. Understandably, when the aerosol generating product 20 is a tobacco cake or tobacco block without a built-in mouthpiece, the opening 120 for inserting the aerosol generating product 20 may be omitted and replaced by an openable door. Simultaneously, a mouthpiece with microwave shielding function can be provided on the atomizing chamber 12. Furthermore, it is understood that the fixing base 13 may be omitted in some embodiments.

[0044] In some embodiments, the atomizing cavity 12 can be integrally or detachably connected to the microwave generator 11 via its bottom. In some embodiments, the housing of the atomizing cavity 12 may include non-metallic materials such as metal materials or other highly conductive materials with microwave shielding properties, hard plastics coated with a metal film, or transparent shielding glass, or multi-layered metal mesh, thin film, and non-metallic composite shielding materials. It is understood that the opening 120 of the atomizing cavity 12 is not limited to being located on the top wall; it may also be located on the side wall as needed.

[0045] In some embodiments, the microwave generator 11 may include a housing 111, a microwave generating circuit 112 disposed within the housing 111, and a microwave transmitting antenna 113 connected to the microwave generating circuit 112. In some embodiments, the microwave generating circuit 112 may include a solid-state microwave source. In some embodiments, the microwave transmitting antenna 113 may extend into the atomizing cavity 12 to transmit the microwave signal generated by the microwave generating circuit 112 into the atomizing cavity 12. Furthermore, the microwave transmitting antenna 113 is located outside the mounting base 13, meaning that during operation, the microwave transmitting antenna 113 will not be inserted into the aerosol generating product 20 housed in the mounting base 13, achieving non-contact heating of the aerosol generating matrix of the aerosol generating product 20, thus facilitating the insertion and removal of the aerosol generating product 20. The number of microwave transmitting antennas 113 may be one or more. In some embodiments, the microwave generator 11 may include a battery 1101, a heat sink 1102, and a connector 1103 for connecting a microwave transmitting antenna 113, all disposed within a housing 111. The battery 1101 is used to power the entire device.

[0046] See also Figure 3 In some embodiments, the microwave generator 11 may include a microwave control circuit 114 and a feedback acquisition circuit 115, with the microwave control circuit 114 connected to both the microwave generation circuit 112 and the feedback acquisition circuit 115. The aerosol generating device 10 operates as follows: the microwave control circuit 114 determines a preset microwave frequency and controls the microwave generation circuit 112 to generate microwaves at the preset microwave frequency. The microwave transmitting antenna 113 sweeps and transmits microwaves within the preset microwave frequency range, with at least a portion of the microwaves focused in the atomizing cavity 12 to heat the aerosol-generating product 20. It should be noted that the microwave transmitting antenna 113 sweeps and transmits microwaves within a preset microwave frequency range, which is achieved through the microwave control circuit 114. The microwave control circuit 114 sweeps the frequency within the preset microwave frequency range to determine the preset microwave frequency. For example, it may gradually increase the frequency from the minimum frequency of the preset microwave frequency range to the maximum frequency of the preset microwave frequency range, or gradually increase the frequency from the minimum frequency of the preset microwave frequency range to the maximum frequency of the preset microwave frequency range according to a preset frequency interval, or gradually decrease the frequency from the maximum frequency of the preset microwave frequency range to the minimum frequency of the preset microwave frequency range, or gradually decrease the frequency from the maximum frequency of the preset microwave frequency range to the minimum frequency of the preset microwave frequency range according to a preset frequency interval. For another example, the preset microwave frequency range includes at least two preset microwave frequency points, and each preset microwave frequency point is transmitted to the microwave generating circuit 112 in a preset order.

[0047] Furthermore, after the microwave transmitting antenna 113 emits microwaves, the feedback acquisition circuit 115 acquires the feedback signal corresponding to the preset microwave frequency emitted by the microwave transmitting antenna 113, and transmits the feedback signal to the microwave control circuit 114. The microwave control circuit 114 selects a microwave transmission frequency based on the feedback signal to maintain or correct the preset microwave frequency, that is, selects a suitable microwave transmission frequency so that the aerosol generating product 20 in the atomization cavity 12 reaches the optimal atomization state. Alternatively, the microwave transmission frequency at which the aerosol generating product 20 absorbs the most is selected as the optimal microwave transmission frequency, and the aerosol generating device 10 emits microwaves at this optimal microwave transmission frequency until the next microwave frequency sweep. In some embodiments, microwaves are used to directly heat the aerosol generating product 20, and the microwave transmission frequency is adjusted by frequency sweep, resulting in high heating efficiency and extended equipment life.

[0048] In some embodiments, the feedback signal is a feedback current value, and the feedback acquisition circuit 115 is a current acquisition circuit that uses the induced current value generated by the target object under microwave irradiation as the feedback current value. In some embodiments, the feedback signal is a feedback voltage value, and the feedback acquisition circuit 115 is a voltage acquisition circuit that uses the induced voltage value generated by the target object under microwave irradiation as the feedback voltage value. In some embodiments, the feedback signal is a feedback capacitance value, and the feedback acquisition circuit 115 is a capacitance acquisition circuit that uses the induced capacitance value generated by the target object under microwave irradiation as the feedback capacitance value. In some embodiments, the feedback signal is a feedback temperature value, and the feedback acquisition circuit 115 is a temperature acquisition circuit that acquires the temperature value of the target object under microwave irradiation. Alternatively, the target object may be an aerosol generating product 20, and the temperature acquisition circuit acquires the temperature value of the aerosol generating product 20 under microwave irradiation.

[0049] like Figure 4 As shown, the feedback signal is the reverse microwave power, and the feedback acquisition circuit 115 is a microwave reverse power detector 116. After microwave transmission, not all microwaves are absorbed by the aerosol generating product 20; some unabsorbed microwaves are detected by the reverse microwave power detector, thus obtaining the reverse microwave power. Alternatively, the microwave transmitting antenna 113 serves as the receiver for unabsorbed microwaves. The microwave reverse power detector 116 detects the reverse microwave power received by the microwave transmitting antenna 113. The microwave transmitting antenna 113 absorbs some of the microwaves not absorbed by the aerosol generating product 20, and the microwave reverse power detector 116 detects the power of the microwaves absorbed by the microwave transmitting antenna 113 to obtain the reverse microwave power. Further, after obtaining the reverse microwave power, the microwave control circuit 114 selects the optimal microwave transmission frequency based on the reverse microwave power. For example, the microwave control circuit 114 selects the microwave transmission frequency corresponding to the minimum reverse microwave power, or the microwave control circuit 114 selects a microwave transmission frequency within the range of the microwave transmission frequency corresponding to the minimum reverse microwave power.

[0050] like Figure 5 As shown, in some embodiments, the microwave generator 11 may include a microwave forward power detector 117 connected to the microwave control circuit 114. The microwave forward power detector 117 is used to collect microwave transmission power. The microwave control circuit 114 can select an optimal microwave transmission frequency based on the microwave transmission power and the reverse microwave power, for example, based on the ratio of the reverse microwave power to the microwave transmission power, selecting the microwave transmission frequency corresponding to the minimum ratio of the reverse microwave power to the microwave transmission power.

[0051] like Figure 6 As shown, in some embodiments, the microwave generator 11 may include a power amplifier 118. The output of the microwave generating circuit 112 is connected to the first input of the power amplifier 118, and the output of the power amplifier 118 is connected to the microwave transmitting antenna 113. A microwave control circuit 114 is connected to the power amplifier 118, and the microwave control circuit 114 adjusts the power amplifier 118 according to a feedback signal. Understandably, the microwave control circuit 114 can control the amplification factor of the power amplifier 118.

[0052] like Figure 7 As shown, in some embodiments, the microwave generator 11 may have a power regulator 119. A microwave control circuit 114 is connected to the input terminal of the power regulator 119, and the output terminal of the power regulator 119 is connected to the second input terminal of the power amplifier 118. The microwave control circuit 114 adjusts the power regulator 119 according to a feedback signal. It is understood that the power amplifier 118 and the power regulator 119 can be two independent electronic components or integrated electronic components that can perform both functions. Alternatively, the microwave control circuit 114 can simultaneously adjust the power amplifier 118 and the power regulator 119 according to the feedback signal to achieve a wider range of microwave transmission power adjustment.

[0053] For reference Figure 8 In some embodiments, the microwave control method in the aerosol generating device 10 may include the following steps:

[0054] S1. The microwave control circuit 114 controls the microwave generating circuit 112 to generate microwaves, causing the microwave transmitting antenna 113 to sweep and transmit microwaves within a preset microwave frequency range. The microwaves are used to heat the aerosol-generated product 20 in the atomizing cavity 12. Specifically, the microwave control circuit 114 determines the preset microwave frequency and controls the microwave generating circuit 112 to generate microwaves at the preset microwave frequency. The microwave transmitting antenna 113 sweeps and transmits microwaves within the preset microwave frequency range, and at least a portion of the microwaves are concentrated in the atomizing cavity 12 to heat the aerosol-generated product 20. It should be noted that the microwave transmitting antenna 113 sweeps and transmits microwaves within a preset microwave frequency range, which is achieved through the microwave control circuit 114. The microwave control circuit 114 sweeps the frequency within the preset microwave frequency range to determine the preset microwave frequency. For example, it may gradually increase the frequency from the minimum frequency of the preset microwave frequency range to the maximum frequency of the preset microwave frequency range, or gradually increase the frequency from the minimum frequency of the preset microwave frequency range to the maximum frequency of the preset microwave frequency range according to a preset frequency interval, or gradually decrease the frequency from the maximum frequency of the preset microwave frequency range to the minimum frequency of the preset microwave frequency range, or gradually decrease the frequency from the maximum frequency of the preset microwave frequency range to the minimum frequency of the preset microwave frequency range according to a preset frequency interval. For another example, the preset microwave frequency range includes at least two preset microwave frequency points, and each preset microwave frequency point is transmitted to the microwave generating circuit in a preset order.

[0055] S2. The feedback acquisition circuit 115 acquires the feedback signal corresponding to the microwave and sends the feedback signal to the microwave control circuit 114. Specifically, after the microwave transmitting antenna 113 transmits microwaves, the feedback acquisition circuit 115 acquires the feedback signal corresponding to the microwave at the preset microwave frequency transmitted by the microwave transmitting antenna 113 and transmits the feedback signal to the microwave control circuit 114.

[0056] S3. After the frequency sweep emission of microwaves is completed, the microwave control circuit 114 selects the microwave emission frequency based on the feedback signal. Specifically, after the frequency sweep emission of microwaves is completed, the microwave control circuit 114 selects the microwave emission frequency based on the feedback signal to maintain or correct the preset microwave frequency, that is, to select a suitable microwave emission frequency so that the aerosol generating product 20 in the atomization chamber reaches the optimal atomization state. Alternatively, the microwave emission frequency at which the aerosol generating product 20 absorbs the most is selected as the optimal microwave emission frequency, and the aerosol generating device 10 emits microwaves at this optimal microwave emission frequency until the next microwave frequency sweep.

[0057] In some embodiments, microwaves are used to directly heat the aerosol-generated product 20, and the microwave emission frequency is adjusted by frequency sweeping, resulting in high heating efficiency and extended equipment lifespan.

[0058] In some embodiments of the microwave control method, step S3, in which the microwave control circuit 114 selects the microwave transmission frequency based on the feedback signal, includes: the microwave control circuit 114 selects the microwave transmission frequency and microwave transmission power based on the feedback signal, and simultaneously adjusts the microwave transmission frequency and microwave transmission power to make the aerosol generating product 20 in the atomizing cavity 12 reach the optimal atomization state.

[0059] In some embodiments of the microwave control method, the feedback signal in step S2 is the reverse microwave power. After microwave emission, not all microwaves are absorbed by the aerosol generating product 20; some unabsorbed microwaves are detected by the reverse microwave power to obtain the reverse microwave power. Correspondingly, in step S3, the microwave control circuit 114 selects the microwave emission frequency based on the feedback signal, including: the microwave control circuit 114 selects the microwave emission frequency corresponding to the minimum value of the reverse microwave power.

[0060] In some embodiments of the microwave control method, the aerosol generating device 10 may have manufacturing errors, which could cause the preset microwave emission frequency at the time of manufacture to be not the optimal microwave emission frequency. Therefore, the preset microwave emission frequency needs to be calibrated. Before step S1, the method further includes: S101, the microwave control circuit 114 receives a microwave frequency selection command, which can be generated by a physical button or a virtual button, etc. This step can be completed at the factory or during the user's first use.

[0061] In some embodiments of the microwave control method, since each aerosol generating product 20 corresponds to a different microwave frequency, that is, each aerosol generating product 20 has a different microwave frequency for resonant heating, in order to achieve the best heating effect, before step S1, the method further includes: S102, the microwave control circuit 114 receives the aerosol generating product installation completion instruction, that is, after the user installs or replaces the aerosol generating product 20, the aerosol generating product 20 installation completion instruction is generated.

[0062] In some embodiments of the microwave control method, as the aerosol generating article 20 is consumed, the location where the aerosol generating article 20 needs to be heated changes continuously. In order to ensure that the microwave can accurately heat the aerosol generating article 20, before step S1, the method further includes: S103, the microwave control circuit 114 receives a suction command, and the user generates a suction command each time suction is performed.

[0063] In some embodiments of the microwave control method, as the aerosol generating article 20 is consumed, the location of the aerosol generating article 20 that needs to be heated changes continuously. In order to enable the microwave to accurately heat the aerosol generating article 20, the method further includes S104, where the microwave control circuit 114 performs a preset suction time at intervals before step S1.

[0064] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0065] It is understood that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both. To clearly illustrate the interchangeability of hardware and software, the components and steps of the various examples have been generally described in terms of functionality in the foregoing description. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementations should not be considered beyond the scope of this invention.

[0066] See also Figure 9 In some embodiments, the atomizing cavity 12 may include a strong microwave field region A and a weak microwave field region B. The strong microwave field region A is located near the end of the mounting base 13, i.e., the area where the aerosol generating component 22 of the aerosol generating product 20 is located. The weak microwave field region B is located near the opening 120 of the mounting base. This microwave field distribution allows more microwaves to heat the aerosol generating component 22 of the aerosol generating product 20 near the end of the mounting base 13, thus making fuller use of microwaves, reducing energy consumption, and improving heating efficiency. The weak microwave field region B, corresponding to the opening 120 of the mounting base 13, facilitates microwave shielding, reducing the probability of microwave leakage through the opening of the mounting base 13. Furthermore, the microwave shielding material of the aerosol generating product 20 is preferably disposed near the opening 120, within the weak microwave field, which can prevent high-temperature arcing of the shielding material in the stronger microwave field region, improving safety during suction.

[0067] See also Figure 10 In some embodiments, the atomizing cavity 12 may include an inner microwave reflective layer 121 and an outer microwave shielding layer 122. The microwave reflective layer 121 cooperates with the microwave transmitting antenna 113 to form the aforementioned strong microwave field region A and weak microwave field region B. Specifically, depending on the size of the atomizing cavity 12 and the position of the microwave transmitting antenna 113, a predetermined area within the atomizing cavity 12 can be designated as the strong microwave field region A, and a predetermined area as the weak microwave field region B. The microwave shielding layer 122 is used to prevent microwave leakage and microwave contamination. In some embodiments, the atomizing cavity 12 may be cylindrical or other shapes.

[0068] In some embodiments, the fixing base 13 may be cylindrical, suspended below the top wall of the atomizing cavity 12, and connected to the opening 120 on the top wall of the atomizing cavity 12. In some embodiments, the fixing base 13 may be made of microwave-penetrating materials such as ceramics or high-temperature resistant plastics. The opening 120 is used for inserting the aerosol generating product 20 into the atomizing cavity 12 and fixing it in place by the fixing base 13.

[0069] In some embodiments, microwaves are generated by a microwave generating circuit 112 and introduced into the atomizing cavity 12 through a connector 1103 and a microwave transmitting antenna 113. A strong microwave field region A is formed above the microwave transmitting antenna 113. The aerosol generating product 20, located above the microwave transmitting antenna 113, is situated within this strong microwave field. Under the influence of microwaves, intermolecular vibrations occur, generating a large amount of heat and thus forming an aerosol. The heating method of the aerosol generating product 20 is changed from traditional heat conduction heating with a heating element to microwave radiation heating, achieving a transformation in the heating method. Microwave heating has advantages such as heating from the outside in, fast heating speed, and uniform heating. The aerosol generating product 20 is fixed by the side wall and bottom of the fixing base 13, without the need for other objects to be inserted into it. Therefore, after the aerosol generating product 20 is completely aspirated, there is no problem of the heating element and the aerosol generating product 20 sticking together.

[0070] Figure 11 The aerosol generating article 20 of some embodiments of the present invention is shown, which may include a cylindrical outer shell 21 and a columnar aerosol generating component 22, a cooling section 23, and a filter section 24 arranged sequentially from bottom to top within the outer shell 21. When the aerosol generating article 20 is inserted into the fixing base 13, the aerosol generating component 22 is in a strong microwave field region A to generate aerosol by microwave heating; the filter section 24 is at least partially exposed in the atomizing cavity 12 for the user to inhale the aerosol with their mouth; the cooling section 23 is used to cool the aerosol before it flows into the filter section 24 to prevent burns.

[0071] In some embodiments, the outer shell 21 may be made of a supporting cardboard tube, polylactic acid (PLA) material tube, protein material tube, plant gum material tube, or cellulose derivative material tube. In some embodiments, the cooling section 23 may be made of a PLA / aluminum foil composite film, paper filter rod, PLA nonwoven fabric, PLA granules, PLA filament braided tube, serrated PLA folded film, or cooling activated carbon composite material. In some embodiments, the filter tip section 24 may be made of PLA filaments or cellulose acetate filaments.

[0072] In some embodiments, to prevent microwave leakage through the opening 120, the filter section 24 may be made of a shielding material. Specifically, it may be made of at least one of the following materials: metal foam, conductive foam, carbon material, polymer composite material, a mixed fabric of metal conductive fibers and cellulose acetate bundles, or a mixed fiber bundle with metal conductive fibers as the core and ordinary fibers as the outer layer. This filter section 24 can absorb and reflect a small amount of microwaves back to the aerosol generating component 22, thus enhancing heating. This microwave-shielded filter section can prevent high-temperature arcing of the aerosol generating product 20 in the strong microwave field region A, and also promotes enhanced microwave reflection, effectively shielding microwaves and improving safety during suction.

[0073] Figure 12 The aerosol generating article 20a according to some embodiments of the present invention is shown, which may include a cylindrical outer shell 21 and a columnar aerosol generating component 22, a cooling section 23, and a filter section 24 arranged sequentially from bottom to top within the outer shell 21. In some embodiments, the outer shell 21 may be made of at least one of the following materials: a supporting cardboard tube, a polylactic acid (PLA) material tube, a protein material tube, a plant gum material tube, or a cellulose derivative material tube. In some embodiments, the cooling section 23 may be made of at least one of the following materials: a PLA / aluminum foil composite film, a paper filter rod, PLA nonwoven fabric, PLA granules, PLA filament braided tube, a serrated PLA folded film, and a cooling activated carbon composite material. In some embodiments, the filter section 24 may be made of a material with microwave shielding properties, for example, at least one of the following materials: foamed metal, conductive foam, carbon material, polymer composite material, a mixed fabric of metal conductive fibers and cellulose acetate tows, or a mixed fiber tow with metal conductive fibers as the core material and ordinary fibers as the outer layer. In some embodiments, the aerosol generating article 20a may further include two microwave shielding layers 25, respectively disposed on the entire end face of both ends of the filter section 24. It is understood that the microwave shielding layer 25 may also be disposed at one end of the filter section 24. In some embodiments, the microwave shielding layer 25 may be made of highly conductive and breathable materials, such as at least one of the following shielding materials: transparent electromagnetic shielding film, metal-plated thin film, microwave shielding glass, single-layer / multi-layer metal grid, composite shielding substrate made of transparent conductive film and glass, foamed metal, carbon materials, microwave shielding polymer composite materials, etc. Together with the filter section 24 having microwave shielding function, the microwave shielding layer 25 can prevent high-temperature arcing of the aerosol generating article 20 in a strong microwave field region A, and can also promote the enhancement of microwave reflection, effectively shielding microwaves and improving safety during suction.

[0074] Figure 13The aerosol generating article 20b in some embodiments of the present invention may include a cylindrical outer shell 21 and a columnar aerosol generating component 22, a cooling section 23, and a filter section 24 arranged sequentially from bottom to top within the outer shell 21. In some embodiments, the outer shell 21 may be made of at least one of the following materials: a supporting cardboard tube, a polylactic acid (PLA) material tube, a protein material tube, a plant gum material tube, or a cellulose derivative material tube. In some embodiments, the cooling section 23 may be made of at least one of the following materials: a PLA / aluminum foil composite film, a paper filter rod, PLA nonwoven fabric, PLA granules, PLA filament braided tube, a serrated PLA folded film, or a cooling activated carbon composite material. In some embodiments, the filter section 24 may be made of a microwave-shielding material, for example, at least one of the following materials: foamed metal, conductive foam, carbon material, polymer composite material, a mixed fabric of metal conductive fibers and cellulose acetate tows, or a mixed fiber tow with metal conductive fibers as the core and ordinary fibers as the outer layer. In some embodiments, the aerosol generating article 20b may further include a microwave shielding layer 25b. The microwave shielding layer 25b may be disposed between the cooling section 23 and the filter section 24 to prevent microwaves from being conducted to the filter section 24 via the cooling section 23, thereby improving safety during use. In some embodiments, the microwave shielding layer 25b may include a metal fiber layer, which includes an elastic flange 251b protruding from the outer shell 21. This elastic flange 251b is used to overlap the edge of the opening 120 of the atomizing cavity 12 to electrically connect with the shielding shell of the atomizing cavity 12, forming a shield for the entire device (e.g., Figure 14 (As shown).

[0075] Figure 15The diagram illustrates an aerosol generating article 20c according to some embodiments of the present invention, which may include a cylindrical outer shell 21 and a columnar aerosol generating component 22, a cooling section 23, and a filter section 24 arranged sequentially from bottom to top within the outer shell 21. In some embodiments, the outer shell 21 may be made of at least one of the following materials: a supporting cardboard tube, a polylactic acid (PLA) material tube, a protein material tube, a plant gum material tube, or a cellulose derivative material tube. In some embodiments, the cooling section 23 may be made of at least one of the following materials: a PLA / aluminum foil composite film, a paper filter rod, PLA nonwoven fabric, PLA granules, PLA filament braided tube, a serrated PLA folded film, or a cooling activated carbon composite material. In some embodiments, the filter section 24 may be made of a microwave-shielding material, for example, at least one of the following materials: foamed metal, conductive foam, carbon material, polymer composite material, a mixed fabric of metal conductive fibers and cellulose acetate filaments, or a mixed fiber filament bundle with metal conductive fibers as the core and ordinary fibers as the outer layer. In some embodiments, the aerosol generating product 20c may further include a microwave shielding layer 25b. The microwave shielding layer 25b may be disposed between the cooling section 23 and the filter section 24 to prevent microwaves from being conducted to the filter section 24 via the cooling section 23, thereby improving safety during use. In some embodiments, the microwave shielding layer 25b may include an elastic flange 251b protruding from the outer shell 21. This flange 251b is used to overlap the edge of the opening 120 of the atomizing cavity 12 to electrically connect with the shielding shell of the atomizing cavity 12, forming a shield for the entire device (e.g., Figure 14 (As shown). In some embodiments, the aerosol generating article 20c may also include a microwave shielding layer 25c, which is disposed on the upper end surface of the filter section 24 to further enhance the shielding effect.

[0076] Figure 16The aerosol generating article 20d shown in some embodiments of the present invention may include a cylindrical outer shell 21 and a columnar aerosol generating component 22, a cooling section 23, and a filter section 24 arranged sequentially from bottom to top within the outer shell 21. In some embodiments, the outer shell 21 may be made of at least one of the following materials: a supporting cardboard tube, a polylactic acid (PLA) material tube, a protein material tube, a plant gum material tube, or a cellulose derivative material tube. In some embodiments, the cooling section 23 may be made of at least one of the following materials: a PLA / aluminum foil composite film, a paper filter rod, PLA nonwoven fabric, PLA granules, PLA filament braided tube, a serrated PLA folded film, or a cooling activated carbon composite material. In some embodiments, the filter section 24 may be made of a microwave-shielding material, for example, at least one of the following materials: foamed metal, conductive foam, carbon material, polymer composite material, a mixed fabric of metal conductive fibers and cellulose acetate filaments, or a mixed fiber filament with metal conductive fibers as the core and ordinary fibers as the outer layer. In some embodiments, the aerosol-generating product 20d may also include a microwave shielding layer 25b. The microwave shielding layer 25b may be disposed between the cooling section 23 and the filter section 24 to prevent microwaves from being conducted to the filter section 24 via the cooling section 23, thereby improving safety during use. In some embodiments, the microwave shielding layer 25b may include an elastic flange 251b protruding from the outer shell 21 and a sleeve 252b. The elastic flange 251b is used to overlap the edge of the opening 120 of the atomizing cavity 12 to electrically connect with the shielding shell of the atomizing cavity 12, forming the shielding of the entire device (e.g., Figure 14 (As shown). The sleeve 252b is fitted onto the side wall of the cooling section 23.

[0077] Figure 17 A partial structural schematic diagram of an aerosol generating device 10d according to some embodiments of the present invention is shown. As shown, the aerosol generating device 10d includes a microwave generator 11d, an atomizing cavity 12d connected to the microwave generator 11d, and a mounting base 13d disposed within the atomizing cavity 12d for fixing the aerosol generating article 20. The microwave generator 11d includes a microwave transmitting antenna 113d for feeding microwaves into the atomizing cavity 12d.

[0078] In some embodiments, the atomizing cavity 12d can be made of materials with high conductivity and good light transmittance, such as transparent microwave shielding glass (including metal mesh shielding glass, metal-coated film shielding glass, etched metal mesh shielding glass) and transparent non-glass materials (such as acrylic materials, PVC plastic, PCTG, crystal materials, etc.) coated with microwave shielding film or single / multi-layer metal grids. The fabrication methods include interlayering, laser / plasma etching, vacuum coating such as magnetron sputtering or electron beam evaporation, or forming a metal film layer on the glass surface using chemical vapor deposition, chemical thermal decomposition, or sol-gel methods. Because the atomizing cavity 12d is made of transparent material, the user can directly observe the aerosol extraction process and the degree of contamination within the atomizing cavity 12d, facilitating timely cleaning and extending the service life of the aerosol generating device 10d. Furthermore, the transparent atomizing cavity 12d possesses unique characteristics such as light transmission, color refraction, and aesthetic appeal, allowing for diverse and varied light effects and strong plasticity, perfectly combining practicality and artistry. Furthermore, transparent microwave shielding glass is a light-transmitting observation window device that attenuates microwave radiation power. While ensuring high visible light transmittance, it effectively shields microwave radiation, prevents leakage, and reduces harm to the human body. In addition, the shielding glass can block most ultraviolet light, preventing internal components from aging due to sunlight's ultraviolet radiation.

[0079] In some embodiments, the microwave transmitting antenna 113d and the mounting base 13d may also be made of transparent materials. The mounting base 13d may be made of glass, high-temperature resistant transparent plastic, polyetherketone (PEK), or transparent non-glass materials. The microwave transmitting antenna 113d may be made of transparent conductive metal oxide thin films (including ITO, FTO, AZO, NTO, etc.), AgHT series multilayer film systems, metal film systems with metal film thickness in the nanometer range (mainly including aluminum, copper, silver, gold, etc. metal films), metal mesh, or transparent conductive ink printed by a printer. During the fabrication of the microwave transmitting antenna 113d, a transparent thin film layer may be formed on the outer surface of the transparent mounting base 13d near the connector 1103d by spraying, radio frequency magnetron sputtering coating technology, laser / plasma etching process, electron beam evaporation and other vacuum coating, or by chemical vapor deposition, chemical thermal decomposition, sol-gel methods, etc. The aforementioned transparent microwave transmitting antenna 113d features optical transparency, high conductivity, high radiation efficiency, and directional microwave emission. Its very small thickness allows for better aesthetics and concealment, facilitating the realization of an overall transparent structure for the atomizing cavity 12. This solves the problems of bulkiness and obstruction of vision associated with the microwave transmitting antenna 113d.

[0080] Some embodiments of the present invention also provide an aerosol generating component 22, which can be a tobacco product and can rapidly generate aerosols under microwave conditions. Specifically, the aerosol generating component 22 is a heat-not-burn tobacco product that forms aerosols by heating without burning under microwave action of 915MHz~30GHz.

[0081] like Figure 18 As shown, in some embodiments, the aerosol generating component 22 may include tobacco 221, aerosol forming agent 222 and functional particles 223. The functional particles 223 are capable of absorbing microwaves and converting the absorbed microwaves into heat energy, which is then transferred to the aerosol forming agent 222 and tobacco 221. At the same time, the functional particles can also reflect microwaves so that other components in the aerosol generating component 22 that are capable of absorbing microwaves are heated by absorbing microwaves, thereby forming an aerosol.

[0082] In some embodiments, the functional particle 223 also possesses excellent surface infrared radiation performance; for example, the emissivity of the functional particle 223 is greater than 0.8, preferably greater than 0.9. To achieve this high surface infrared radiation performance, the functional particle 223 can be achieved by adding a high-emissivity infrared radiation layer to the surface of the low-emissivity absorbing core. For example, by forming a cordierite layer on the surface of silicon carbide, a microwave absorbing material with an emissivity of approximately 0.8, the emissivity of the functional particle 223 formed in this way can reach above 0.95. For zinc oxide, a microwave absorbing material with relatively low emissivity, it is even more necessary to add a high-emissivity layer.

[0083] In some embodiments, this can also be achieved by selecting materials that simultaneously possess excellent microwave absorption performance and high emissivity. For example, carbon powder, ferric oxide, and other composite materials with high absorption performance and emissivity can be selected.

[0084] Tobacco 221, as an essential component of the aforementioned aerosol generating component 22, includes base tobacco. Optionally, the base tobacco is selected from at least one of shredded tobacco and tobacco sheets. In one optional specific example, the base tobacco is a mixture of shredded tobacco and tobacco sheets. Of course, the ratio of shredded tobacco to tobacco sheets can be adjusted according to actual needs.

[0085] Optionally, the tobacco 221 in the aerosol generating component 22 may also include at least one of flavoring and inorganic fillers. Adding flavoring to the tobacco 221 can enrich the flavor of the aerosol generating component 22. The inorganic filler added to the tobacco 221 provides some support to the base tobacco, facilitating shaping. Of course, the types and amounts of flavoring and inorganic fillers can be selected and adjusted according to actual needs.

[0086] Aerosol forming agent 222 is used to form an aerosol. Optionally, the aerosol forming agent contains propylene glycol. Of course, aerosol forming agent 222 adheres to the tobacco to a certain extent. Further, aerosol forming agent 222 contains a substance with good microwave absorption properties. A substance with good microwave absorption properties can rapidly vaporize by directly absorbing microwaves, thereby producing smoke and achieving heating without combustion. Specifically, the substance with good microwave absorption properties has a loss tangent greater than 0.1 for a specific wavelength of microwaves. Even further, the mass percentage of the substance with good microwave absorption properties in aerosol forming agent 222 is 1% to 50%.

[0087] In the aerosol forming agent 222 containing a substance with good microwave absorption properties, smoke is mainly generated through the boiling / evaporation of the substance with good microwave absorption properties. The highest temperature is the boiling point of the substance with good microwave absorption properties, thus achieving self-temperature control and eliminating the need for a temperature control component. However, the microwave absorption capacity of the aerosol generating component 22 decreases as the amount of the substance with good microwave absorption properties decreases. After the substance with good microwave absorption properties is completely released, the microwave absorption capacity of the aerosol generating component 22 is greatly reduced, and it can no longer effectively absorb microwave energy to raise the temperature, thus preventing scorching and other adverse phenomena. Furthermore, multiple experiments have shown that the aerosol generating component 22 has a threshold for its suction life. Before this threshold, the aerosol generating component 22 has a good taste and the effective components are fully released; however, after exceeding this threshold, the entire lifespan of the aerosol generating component 22 expires, the effective components have been completely released, and the taste is unpleasant. Therefore, the suction life of the aerosol generating component 22 can be precisely controlled by the amount of the substance with good microwave absorption properties (e.g., propylene glycol) added and the number of suction ports. In addition... Microwave heating is characterized by uniformity and a temperature gradient that extends from the inside out, thus avoiding the problem of insufficient heating of tobacco that can occur with central heating devices.

[0088] Optionally, the aerosol forming agent 222 contains at least one of propylene glycol and glycerol. Further, the aerosol forming agent 222 contains propylene glycol, and the mass percentage of propylene glycol is 1% to 50%. In one optional specific example, the mass percentage of propylene glycol in the aerosol forming agent 222 is 2%, 5%, 10%, 15%, 20%, 35%, or 45%. Further, the mass percentage of propylene glycol in the aerosol forming agent 222 is 5% to 15%.

[0089] In some embodiments, the aerosol forming agent 222 also contains nicotine compounds. Adding nicotine compounds can improve the poor flavor of the aerosol generating component 22 caused by poor tobacco quality. Of course, adding nicotine compounds can also improve the inconsistency in flavor of the aerosol generating component 22 caused by different batches of tobacco. Specifically, the nicotine compounds are selected from at least one of nicotine and nicotine salts.

[0090] Further, the aerosol forming agent 222 contains nicotine compounds at a mass percentage of 0.1% to 33%. In one optional specific example, the mass percentage of nicotine compounds in the aerosol forming agent is 0.1%, 2%, 8%, 10%, 15%, 20%, 25%, or 33%. In some embodiments, the aerosol forming agent 222 may also contain a non-tobacco flavoring agent. Optionally, the non-tobacco flavoring agent is selected from at least one of alcohol flavoring agents (e.g., menthol) and aldehyde flavoring agents (e.g., melon aldehyde). In other embodiments, the non-tobacco flavoring agent is not limited to the above, and may also include other edible non-tobacco flavoring agents.

[0091] In some embodiments, the surface of the functional particles is roughened. Roughening the surface of the functional particles 223 prevents bumping and facilitates the full atomization of the tobacco 221 and the aerosol forming agent 222. For example... Figure 19 As shown, in an optional specific example, the functional particle 223 includes an absorbing material 2231 and an infrared radiation layer 2232 formed on the outer surface of the absorbing material 2231. In some embodiments, the dielectric loss tangent or hysteresis loss tangent of the absorbing material 2231 is greater than 0.1. The absorbing material is selected from at least one of silicon carbide, zinc oxide, carbon powder, ferric oxide, and magnetite. In some embodiments, the material of the infrared radiation layer 2232 is selected from at least one of cordierite and perovskite-type (AB2O4, such as NiCr2O4, where A is one or more of La, Sr, Ca, Mg, Bi, and N, and B is one or more of Al, Ni, Fe, Co, Mn, Mo, and Cr) materials.

[0092] In some embodiments, the functional particles are particulate, and the particle size of the functional particles does not exceed 100 μm. Optionally, the particle size of the functional particles is 2.5 μm, 10 μm, 15 μm, 20 μm, 30 μm, 40 μm, 50 μm, 60 μm, 70 μm, 80 μm, or 100 μm. Further, the particle size of the functional particles is 2.5 μm to 100 μm. Even further, the particle size of the functional particles is 10 μm to 60 μm.

[0093] It is understood that in some other embodiments, the shape of the functional particles 223 is not limited to granular, but can be other shapes, such as filaments.

[0094] In some embodiments, the functional particles 223 have the ability to reflect, absorb microwaves, and release infrared radiation, and can play the following roles: (1) enabling the microwave-absorbing substances (such as propylene glycol, glycerol, etc.) in the aerosol generating component 22 to receive more microwaves, thereby enabling the microwave-absorbing substances to absorb more microwaves; (2) the functional particles 223 absorb microwave energy and heat up, and the heat heats the nearby tobacco 221 and aerosol forming agent 222 through thermal conduction; (3) after the functional particles 223 heat up, they transfer energy to the tobacco 221 and aerosol forming agent 222 through strong infrared radiation.

[0095] In some embodiments, the aerosol generating component 22 is sheet-like, spherical, or ellipsoidal. Of course, in other embodiments, the shape of the aerosol generating component 22 is not particularly limited and can be other feasible shapes.

[0096] In some embodiments, the amount of tobacco in the aerosol generating component 22 is 40 to 98 parts by weight, the amount of aerosol forming agent is 1 to 55 parts by weight, and the amount of functional particles is 1 to 55 parts by weight.

[0097] In some embodiments, by weight, the amount of tobacco in the aerosol generating component 22 is 40 to 90 parts, the amount of aerosol forming agent is 5 to 55 parts, and the amount of functional particles is 5 to 55 parts.

[0098] In some embodiments, by weight, in the aerosol generating component 22, the amount of tobacco is 40 to 90 parts, the amount of aerosol forming agent is 5 to 55 parts, and the amount of functional particles is 15 to 45 parts.

[0099] In some embodiments, by weight, in the aerosol generating component 22, the amount of tobacco is 60 to 90 parts, the amount of aerosol forming agent is 10 to 55 parts, and the amount of functional particles is 10 to 40 parts.

[0100] In some embodiments, by weight, in the aerosol generating component 22, the amount of tobacco is 60 to 70 parts, the amount of aerosol forming agent is 10 to 25 parts, and the amount of functional particles is 15 to 25 parts.

[0101] The aforementioned aerosol generating component 22 has at least the following advantages:

[0102] (1) The aerosol generating component 22 mentioned above includes tobacco 221, aerosol forming agent 222 and functional particles 223. The aerosol generating component 22 can rapidly generate aerosols using microwaves of 915MHz to 30GHz. Aerosols can be generated in a very short time (e.g., 1 second), and the amount of smoke generated by the aerosols in a certain time (e.g., 4 seconds) is much greater than the amount of smoke generated by the aerosols in the same time by traditional heated non-combustible aerosol generating products. Moreover, preheating is not required, while the traditional preheating time is about 20 seconds; this can greatly improve the user experience.

[0103] (2) High aerosol generation efficiency: Substances with good microwave absorption properties (such as propylene glycol) in aerosol forming agent 222 can directly absorb microwaves and vaporize to generate aerosols, resulting in high aerosol generation efficiency.

[0104] (3) High utilization rate of tobacco 221: Through the uniformity of microwave heating and the characteristic that the temperature gradient is from the inside to the outside, the problem of insufficient tobacco 221 is avoided and the utilization rate of tobacco 221 is improved.

[0105] (4) Simple maintenance: When in use, since the above-mentioned aerosol generating component 22 uses microwave to generate aerosol, no central heating device is required, which naturally avoids cleaning the central heating device, and the maintenance is simple.

[0106] Some embodiments of the present invention also provide a method for preparing the above-mentioned aerosol generating component 22, the method comprising the following steps:

[0107] Aerosol generating component 22 is prepared by mixing tobacco 221, aerosol forming agent 222 and functional particles 223.

[0108] Specifically, the specific composition and dosage of tobacco 221, aerosol forming agent 222, and functional particles 223 are as described above and will not be repeated here. Furthermore, in some embodiments, after mixing tobacco 221, aerosol forming agent 222, and functional particles 223, the mixture is further subjected to molding processing. Specifically, the molding process can employ molding processes commonly used in the art.

[0109] The preparation method of the above-mentioned aerosol generating component 22 is simple and easy to industrialize.

[0110] Figure 20An aerosol generating apparatus 10e according to some embodiments of the present invention is shown, which may include a microwave generator 11, an atomizing cavity 12 connected to the microwave generator 11, and a mounting base 13 disposed within the atomizing cavity 12 for fixing an aerosol generating article 20. The top wall of the atomizing cavity 12 has an opening 120 communicating with the outside, and the microwave generator 11 feeds microwaves into the atomizing cavity 12. The mounting base 13 is used to detachably fix the aerosol generating article 20 therein, thereby allowing microwaves to heat the aerosol generating article 20.

[0111] In some embodiments, the microwave generator 11 may include a housing 111, a microwave generating circuit 112 disposed within the housing 111, and a microwave transmitting antenna 113e connected to the microwave generating circuit 112. In some embodiments, the microwave transmitting antenna 113e may extend into the atomizing cavity 12 and be spirally distributed on the outer wall of the mounting base 13, for forming a strong microwave field region in the middle of the mounting base 13 during operation. The inner wall of the atomizing cavity 12 can also reflect the microwaves emitted outward by the microwave transmitting antenna 113e towards the strong microwave field region, thereby further strengthening the microwave field in the strong microwave field region.

[0112] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. An aerosol generating product, in the form of a column, capable of being inserted into a microwave heating cavity with a shielded shell, and generating an aerosol under microwave heating; characterized in that, The aerosol generating product includes a microwave shielding structure, which is electrically connected to the shielding shell when the aerosol generating product is inserted into the microwave heating cavity; the aerosol generating product includes, from bottom to top, a cylindrical shell and an aerosol generating component, a cooling section and a filter section disposed within the shell; The shielding structure includes a microwave shielding layer disposed on the cross-section of the aerosol generating product. The microwave shielding layer is disposed between the cooling section and the filter section. The microwave shielding layer includes an elastic conductive flange that radially protrudes from the aerosol generating product. The microwave shielding structure is connected to the opening edge of the atomizing cavity via the elastic conductive flange and is electrically connected to the shielding shell of the atomizing cavity, which includes an inner microwave reflective layer. The filter section is made of a material with microwave shielding properties; the microwave shielding layer is made of a highly conductive and breathable material; the microwave shielding layer also includes a sleeve extending toward the insertion end of the aerosol generating product, the sleeve being fitted onto the side wall of the cooling section.

2. The aerosol-generating product according to claim 1, characterized in that, The microwave shielding layer is made of a metal fiber layer.

3. The aerosol-generating product according to claim 1, characterized in that, The filter section is made of at least one of the following materials: foamed metal, conductive foam, carbon material, a mixed fabric of conductive metal fibers and cellulose acetate bundles, or a mixed fiber bundle with conductive metal fibers as the core and non-conductive fibers as the outer layer.

4. The aerosol-generating product according to claim 1, characterized in that, The aerosol-generating product includes tobacco, an aerosol forming agent, and functional particles, wherein the functional particles are capable of absorbing microwaves; the functional particles are capable of converting the absorbed microwaves into heat energy and transferring it to the tobacco and the aerosol forming agent.

5. The aerosol-generating product according to claim 4, characterized in that, The emissivity of the functional particles is greater than 0.

9.

6. The aerosol-generating product according to claim 1, characterized in that, The microwave shielding layer is made of at least one of the following: transparent electromagnetic shielding film, metal-plated thin film, single-layer / multi-layer metal grid, foamed metal, and carbon material.

7. An aerosol generation system, characterized in that, The invention includes the aerosol generating article according to any one of claims 1 to 6 and an aerosol generating apparatus for microwave heating the aerosol generating article, the aerosol generating apparatus including a microwave heating cavity into which the aerosol generating article is detachably inserted, the microwave heating cavity including a shielding shell electrically connected to the microwave shielding structure.

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