Filter and aerosol-generating device

Abstract

The application provides a filter and an aerosol generating device, the filter comprising a body, a filtering part and a flavoring part, the body being formed with a first cavity and a second cavity in communication with the first cavity, the body being provided with an air inlet and an air outlet in communication with the outside world respectively, the air inlet being in communication with the first cavity, and the air outlet being in communication with the second cavity; the filtering part being arranged in the first cavity, the filtering part having a first air passage, the filtering part comprising a plurality of solid filtering particles, and the passage wall of at least part of the first air passage being formed by the solid filtering particles; the flavoring part being arranged in the second cavity, the flavoring part having a second air passage, the flavoring part comprising a plurality of solid flavoring particles having flavoring substances adsorbed thereon, and the passage wall of at least part of the second air passage being formed by the solid flavoring particles; wherein, in the flow direction of the airflow, the first cavity is located upstream of the second cavity. The filter and the aerosol generating device provided by the application aim to reduce the probability of liquid leakage.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of aerosol generating equipment, in particular to a filter and aerosol generating equipment. BACKGROUND

[0002] The aerosol generating equipment in the related art comprises a main machine and a filter, the filter is provided with a flavoring module, the flavoring module comprises an essential oil bin and a ceramic block, the ceramic block is in contact with the essential oil bin, and the ceramic block serves as an essential oil flow guide and storage medium. The smoke generated by the heating module of the main machine baking a cigarette enters the inside of the filter, and at least one of the heating module of the main machine, the cigarette or the smoke can exchange heat with the ceramic block, so that the essential oil of the ceramic block is atomized, thereby achieving the effect of flavoring. However, the filter comprising such a flavoring module is prone to liquid leakage. SUMMARY

[0003] The present application provides a filter and aerosol generating equipment, aiming to reduce the probability of liquid leakage.

[0004] The present application provides a filter, comprising:

[0005] a body, the body is formed with a first chamber and a second chamber in communication with the first chamber, the body is provided with an air inlet and an air outlet in communication with the outside world respectively, the air inlet is in communication with the first chamber, and the air outlet is in communication with the second chamber;

[0006] a filter part, the filter part is arranged in the first chamber, the filter part has a first air passage, and the filter part comprises a plurality of solid filter particles, and the channel wall of at least part of the first air passage is formed by the solid filter particles;

[0007] a flavoring part, the flavoring part is arranged in the second chamber, the flavoring part has a second air passage, and the flavoring part comprises a plurality of solid flavoring particles adsorbing flavoring substances, and the channel wall of at least part of the second air passage is formed by the solid flavoring particles;

[0008] Wherein, in the flow direction of the airflow, the first chamber is located upstream of the second chamber.

[0009] In the filter of the present application, the volume V1 of the first chamber and the volume V2 of the second chamber satisfy: 12V1≥V2≥1.2V1.

[0010] In the filter of the present application, the shortest length L1 of the first air passage and the shortest length L2 of the second air passage satisfy: 5L1≥L2>L1.

[0011] In the filter according to the present application, the air inlet and the air outlet are respectively arranged at two ends in a first direction of the filter, the first chamber and the second chamber are arranged along a second direction, the second direction intersects the first direction, and the first air passage and the second air passage form an air flow corner therebetween.

[0012] In the filter according to the present application, the filter further comprises a main partition plate for separating the first chamber and the second chamber, the first chamber and the second chamber are respectively located at two sides of the main partition plate, the main partition plate has a main communication port for communicating the first chamber and the second chamber, or the main partition plate cooperates with the body to form the main communication port for communicating the first chamber and the second chamber.

[0013] In the filter according to the present application, the main partition plate extends along the first direction, and the main communication port is located between a middle portion and an end portion close to the air outlet of the main partition plate in the first direction.

[0014] In the filter according to the present application, the second chamber comprises:

[0015] a rear chamber, the rear chamber communicates with the air outlet, and the rear chamber has a rear air passage;

[0016] a connecting chamber, the connecting chamber communicates with the first chamber, the connecting chamber has a connecting passage, the connecting passage respectively communicates with the rear air passage and the first air passage, and

[0017] the air flow corner is formed in the connecting passage; or

[0018] at least one of the first air passage and the rear air passage and the connecting passage form the air flow corner.

[0019] In the filter according to the present application, the filter comprises a secondary partition plate for separating the rear chamber and the connecting chamber, the rear chamber and the connecting chamber are respectively located at two sides of the secondary partition plate, the secondary partition plate has a secondary communication port for communicating the rear chamber and the connecting chamber, or the secondary partition plate cooperates with the body to form the secondary communication port for communicating the rear chamber and the connecting chamber.

[0020] In the filter according to the present application, the secondary partition plate extends along the first direction, and the secondary communication port is located between a middle portion and an end portion close to the air inlet of the secondary partition plate in the first direction.

[0021] In the filter according to the present application, the flavor enhancer is arranged in the rear chamber, and the connecting chamber is empty.

[0022] In the filter of the present application, the taste-enhancing part comprises:

[0023] The first taste-enhancing part is arranged in the rear chamber, and comprises a plurality of first taste-enhancing particles adsorbed with taste-enhancing substances.

[0024] The second taste-enhancing part is arranged in the connecting chamber, and comprises a plurality of second taste-enhancing particles adsorbed with taste-enhancing substances.

[0025] In the filter of the present application, the volume V21 of the connecting chamber and the volume V22 of the rear chamber satisfy: V22≥0.8V21.

[0026] In the filter of the present application, the first chamber, the connecting chamber and the rear chamber are arranged in sequence along the second direction, at least part of the first air passage extends along the first direction, and at least part of the rear air passage extends along the first direction.

[0027] In the filter of the present application, the two ends of the connecting chamber are respectively communicated with the first chamber and the rear chamber, and at least part of the connecting passage extends along the first direction.

[0028] In the filter of the present application, the second direction is perpendicular to the first direction, and the minimum airflow corner ∠A between the first air passage and the second air passage satisfies: 120°≥∠A≥5°.

[0029] In the filter of the present application, the air inlet and the air outlet are respectively arranged at the two ends of the filter in the first direction, and the first chamber and the second chamber are arranged along the first direction.

[0030] In the filter of the present application, the second chamber is arranged around at least part of the first chamber, and the circumferential side of the first chamber is communicated with the second chamber.

[0031] In the filter of the present application, the first chamber is located in the second chamber, and the filter comprises a separation cylinder for separating the first chamber and the second chamber, and the separation cylinder has a separation communication port for communicating the first chamber and the second chamber.

[0032] In the filter of the present application, the separation cylinder comprises:

[0033] The surrounding plate is arranged around the air inlet, and the surrounding plate is provided with the separation communication port.

[0034] The end plate is connected to one end of the surrounding plate away from the air inlet, and the end plate and the surrounding plate jointly separate the first chamber and the second chamber.

[0035] In the filter of the present application, the body comprises:

[0036] a first shell, the air inlet being formed in the first shell;

[0037] a second shell, the air outlet being formed in the second shell, the second shell being connected with the first shell to form the first chamber and the second chamber between the first shell and the second shell.

[0038] In the filter of the present application, the body further comprises:

[0039] a first intermediate cover, at least one of the first shell and the second shell cooperating with the first intermediate cover to form the first chamber, the first intermediate cover being capable of confining a plurality of the solid filtering particles within the first chamber.

[0040] In the filter of the present application, the body further comprises:

[0041] a second intermediate cover, at least one of the first shell and the second shell cooperating with the second intermediate cover to form the second chamber, the second intermediate cover having a gas passage communicating the second chamber and the air outlet, the second intermediate cover being capable of confining a plurality of the solid flavoring particles within the second chamber.

[0042] In the filter of the present application, the body further comprises:

[0043] a first intermediate cover, at least one of the first shell and the second shell cooperating with the first intermediate cover to form the first chamber, the first intermediate cover being capable of confining a plurality of the solid filtering particles within the first chamber;

[0044] a second intermediate cover, at least one of the first shell and the second shell cooperating with the second intermediate cover to form the second chamber, the second intermediate cover having a gas passage communicating the second chamber and the air outlet, the second intermediate cover being capable of confining a plurality of the solid flavoring particles within the second chamber.

[0045] In the filter of the present application, the first intermediate cover covers the first chamber, the second intermediate cover covers the second chamber, and the first intermediate cover and the second intermediate cover are integrally connected.

[0046] In the filter of the present application, the filter further comprises:

[0047] A moisture retaining portion is arranged in at least one of the first chamber and the second chamber, and is located between the filtering portion and the flavoring portion in the flow direction of the airflow, and is used to increase the moisture in the airflow.

[0048] In the filter according to the present application, the moisture retaining portion comprises at least one of a moisture retaining aerogel and a moisture retaining burst bead.

[0049] In the filter according to the present application, the filter further comprises:

[0050] A liquid absorbing portion is arranged in at least one of the first chamber and the second chamber, and is located upstream of the flavoring portion in the flow direction of the airflow, and is used to absorb water droplets.

[0051] In the filter according to the present application, the liquid absorbing portion comprises at least one of liquid absorbing cotton, dry beads and a porous absorbing accessory.

[0052] In the filter according to the present application, the solid flavoring particles comprise at least one of porous ceramic particles, carbon particles or mica particles.

[0053] In the filter according to the present application, at least part of the solid flavoring particles are weakly alkaline porous ceramic particles made of kaolin and have a porosity of 35%-55%.

[0054] In the filter according to the present application, the flavoring portion comprises a plurality of solid porous plant particles having a porosity of 42%-52% and absorbing flavoring substances, wherein the flavoring substances comprise at least one of a smoking agent, a smoke flavor, acetic acid, glyceryl triacetate and menthol acetate, the solid porous plant particles have an absorption amount of the flavoring substances of 50%-70%, and the solid porous plant particles comprise at least one of tea-based particles, bamboo leaf-based particles, lily flower leaf-based particles and tobacco leaf-based particles.

[0055] In the filter according to the present application, the solid flavoring particles are spherical, spheroidal or polyhedral, and have a particle size of 0.4mm-3.4mm.

[0056] The present application further provides an aerosol generating apparatus, comprising:

[0057] a host configured to heat an aerosol generating substrate to generate an aerosol; and

[0058] The filter according to any one of the preceding items is connected to the host, and the aerosol can flow into the filter through the air inlet.

[0059] The filter and the aerosol generating device provided by the application, since the first cavity of the filter is provided with a filter part, the filter part comprises a plurality of solid filter particles; the second cavity of the filter is in communication with the first cavity, the second cavity is provided with a flavoring part, the flavoring part comprises a plurality of solid flavoring particles adsorbing flavoring substances, and the first cavity is located upstream of the second cavity in the flow direction of the airflow, so that the solid filter particles can filter the airflow flowing through when the airflow flows through the first cavity, and the solid flavoring particles adsorbing flavoring substances can fragrance the airflow flowing through when the airflow flows through the second cavity. Compared with the way of forming a fragrance module by an essential oil tank and a ceramic block, the filter provided by the application reduces or avoids the use of liquid flavoring essential oil, thereby effectively reducing or preventing the probability of liquid leakage and improving the user experience.

[0060] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the disclosure of the embodiments of the application. BRIEF DESCRIPTION OF DRAWINGS

[0061] In order to more clearly illustrate the technical solutions of the embodiments of the application, the drawings needed in the embodiment description will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the application, and other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0062] Figure 1 is a structural schematic view of the filter provided by an embodiment of the application;

[0063] Figure 2 is a sectional view of the filter provided by an embodiment of the application;

[0064] Figure 3 is a sectional view of the filter provided by an embodiment of the application;

[0065] Figure 4 is a sectional view of the filter provided by an embodiment of the application;

[0066] Figure 5 is a sectional view of the filter provided by an embodiment of the application;

[0067] Figure 6 is a sectional view of the filter provided by an embodiment of the application;

[0068] Figure 7 is a partial structural schematic view of the filter provided by an embodiment of the application;

[0069] Figure 8 is a structural schematic view of the aerosol generating device provided by an embodiment of the application;

[0070] Figure 9is a sectional view of a heating element provided by an embodiment of the present application.

[0071] Reference signs:

[0072] 100, filter;

[0073] 10, body; 11, first chamber; 12, second chamber; 121, rear chamber; 122, connecting chamber; 13, air inlet; 14, air outlet; 15, first shell; 16, second shell; 17, first intermediate cover; 18, second intermediate cover; 181, air passage;

[0074] 20, filter part; 30, flavoring part; 31, first flavoring part; 32, second flavoring part;

[0075] 40, main partition; 41, main communication port; 50, auxiliary partition; 51, auxiliary communication port;

[0076] 60, separation cylinder; 61, baffle; 62, end plate;

[0077] 70, moisture retention part; 80, liquid absorption part; 91, air inlet;

[0078] 200, main machine; 201, heating element; 2011, accommodation cavity; 2012, substrate inlet; 300, aerosol generating substrate. DETAILED DESCRIPTION

[0079] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0080] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0081] It should also be understood that the terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. As used in the specification and the appended claims of the present application, the singular forms "a", "an" and "the" are intended to include the plural forms unless the context clearly indicates otherwise.

[0082] It should be further understood that the term "and / or" used in the specification and the appended claims of the present application means any combination of one or more of the associated listed items and all possible combinations, and includes these combinations.

[0083] Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. The following embodiments and features in the embodiments can be combined with each other without conflict.

[0084] Please refer to Figure 1 and Figure 2The embodiment of the present application provides a filter 100, which comprises a body 10, a filtering part 20 and a flavoring part 30, the body 10 is formed with a first cavity 11 and a second cavity 12 communicated with the first cavity 11, the body 10 is provided with an air inlet 13 and an air outlet 14 communicated with the outside respectively, the air inlet 13 is communicated with the first cavity 11, and the air outlet 14 is communicated with the second cavity 12. The filtering part 20 is arranged in the first cavity 11, the filtering part 20 has a first air passage (not marked), and the filtering part 20 comprises a plurality of solid filtering particles, and the passage wall of at least part of the first air passage is formed by the solid filtering particles. The flavoring part 30 is arranged in the second cavity 12, the flavoring part 30 has a second air passage (not marked), and the flavoring part 30 comprises a plurality of solid flavoring particles adsorbing flavoring substances, and the passage wall of at least part of the second air passage is formed by the solid flavoring particles. Wherein, in the flow direction of the airflow, the first cavity 11 is located upstream of the second cavity 12.

[0085] The filter 100 of the above embodiment is provided with the filtering part 20 in the first cavity 11, the filtering part 20 comprises a plurality of solid filtering particles, the second cavity 12 of the filter 100 is communicated with the first cavity 11, the second cavity 12 is provided with the flavoring part 30, the flavoring part 30 comprises a plurality of solid flavoring particles adsorbing flavoring substances, and in the flow direction of the airflow, the first cavity 11 is located upstream of the second cavity 12, so that when the airflow flows through the first cavity 11, the solid filtering particles can filter the airflow flowing through, when the filtered airflow further flows through the second cavity 12, the solid flavoring particles adsorbing flavoring substances can fragrance the airflow flowing through, the airflow can be filtered and fragranced, compared with the mode that the fragrance module is formed by the essential oil tank and the ceramic block, on the basis of meeting the filtering and fragrance, the filter 100 of the embodiment reduces or avoids the use of liquid flavoring essential oil, thereby effectively reducing or preventing the occurrence probability of liquid leakage, and improving the use experience of the user.

[0086] It can be understood that the passage wall of at least part of the air passage is formed by the particles, so that when the airflow flows through the air passage, the airflow flows through the particles, so that the particles play the corresponding functional effects such as the fragrance or filtering effect.

[0087] Exemplarily, the passage wall of the first air passage can be formed by the solid filtering particles themselves; or the passage wall of the first air passage is formed by the solid filtering particles and the cavity wall of the first cavity 11; or the passage wall of the first air passage is formed by the solid filtering particles and the solid filtering particles.

[0088] Exemplarily, the passage wall of the second air passage can be formed by the solid flavoring particles themselves; or the passage wall of the second air passage is formed by the solid flavoring particles and the cavity wall of the second cavity 12; or the passage wall of the second air passage is formed by the solid flavoring particles and the solid flavoring particles.

[0089] It can be understood that the adsorption mode of the solid flavoring particles adsorbing the flavoring substances includes but is not limited to adsorption by soaking or adsorption by perfusion.

[0090] Exemplarily, the flavoring substances include propylene glycol, cigarette flavor, propylene glycol as a solvent and a smoking agent of the cigarette flavor, and ingredients of the cigarette flavor meet the food safety national standard GB2760, the tobacco industry standard YC / T 164-2012, and the 797 licensed list of cigarette flavors, and thus are not expanded and described here.

[0091] Exemplarily, the filtering part 20 including a plurality of solid filtering particles can filter the airflow, and at least one of tar and harmful substances such as large particles in the airflow is intercepted or adsorbed, so as to achieve rough filtration of the airflow. Exemplarily, the airflow includes an aerosol.

[0092] Exemplarily, the flavoring part 30 includes a plurality of solid flavoring particles adsorbing flavoring substances, when the airflow flows through the flavoring part 30, the solid flavoring particles adsorbing flavoring substances can add aroma to the airflow, improve the taste and mouthfeel, and the solid flavoring particles can improve the output stability of the flavoring substances to a certain extent. The solid flavoring particles can also improve the passing rate of water vapor and aroma substances in the airflow (such as an aerosol), retain the aroma substances of the aerosol generating substrate itself, and make the smoking taste better.

[0093] Exemplarily, in the flow direction of the airflow, the first chamber 11 is located upstream of the second chamber 12, so that the filter rod 100 can double-filter the airflow (the filtering part 20 can coarsely filter the airflow flowing through the first chamber 11, and the solid flavoring particles can finely filter the airflow flowing through the second chamber 12), which on the one hand greatly reduces the probability of the user inhaling at least one of harmful substances such as tar, heavy metals, and nornicotine; and on the other hand, it is beneficial to the slow release of flavoring substances by the solid flavoring particles. It can be understood that the airflow flows through the first chamber 11 and then flows through the second chamber 12, the filtering part 20 provided in the first chamber 11 can provide a relatively pure environment for the flavoring part 30 provided in the second chamber 12, thereby relieving the adsorption and filtration pressure of the flavoring part 30 or the solid flavoring particles, avoiding the difficulty of the solid flavoring particles releasing flavoring substances after adsorbing a large amount of substances, providing a sufficient environment for the slow release of flavoring substances by the solid flavoring particles, so that the solid flavoring particles can fully release flavoring substances, thereby ensuring good filtering and aroma effects, ensuring consistency of the front and rear mouthfeel, better smoking taste and mouthfeel, and further improving the user experience.

[0094] In some embodiments, the volume V1 of the first chamber 11 and the volume V2 of the second chamber 12 satisfy: 12V1≥V2≥1.2V1, such as V2 being equal to 12V1, 10V1, 6V1, 1.2V1, or any other suitable value between 1.2V1 and 12V1. Understandably, if the volume V2 of the second chamber 12 is too small, it can result in insufficient flavor enhancement; if the volume V2 of the second chamber 12 is too large, it can result in less filtering and more odor in a limited space. In the case of 12V1≥V2≥1.2V1, the airflow has a good filtering effect when flowing through the first chamber 11, and has a good flavor enhancement effect when flowing through the second chamber 12, thus balancing the filtering effect and the flavor enhancement effect. The specific values of V1 and V2 can be designed according to actual needs, which are not limited herein.

[0095] In some embodiments, the shortest length L1 of the first air passage and the shortest length L2 of the second air passage satisfy: 5L1≥L2>L1, such as L2 being equal to 2L1, 2.5L1, 3L1, 4L1, 4.5L1, or any other suitable value between L1 (not included) and 5L1. Understandably, if the shortest length L2 of the second air passage is too long, the airflow flowing through the second air passage will be cooled too much, which can affect the taste; if the shortest length L2 of the second air passage is too short, the flavor enhancement effect on the airflow is not obvious, and the aroma is difficult to volatilize. In the case of 5L1≥L2>L1, the airflow flowing through the second air passage can balance the reasonable cooling and good flavor enhancement effect. The specific values of L1 and L2 can be designed according to actual needs, which are not limited herein.

[0096] The air inlet of the first air passage can include one, two, three, or more, and the air outlet of the first air passage (such as the main communication port 41 in Figure 2 ) can include one, two, three, or more. The air passage of the second air passage (such as the secondary communication port 51 in Figure 2 ) can include one, two, three, or more, and the air passage of the second air passage (such as the air passage 181 in Figure 3 ) can include one, two, three, or more. The connection line between the middle of one air inlet of the first air passage and the middle of one air outlet is W1 (see Figure 7 ), and the number of connection lines W1 includes one or at least two. The connection line between the middle of one air passage of the second air passage and the middle of one air passage is W3 (see Figure 7 ), and the number of connection lines W3 includes one or two. The shortest length of the first air passage refers to the length of the shortest connection line W1. The shortest length of the second air passage refers to the length of the shortest connection line W3.

[0097] Please refer toFigure 2 In some embodiments, the air inlet 13 and the air outlet 14 are respectively arranged at two ends of the filter rod 100 in the first direction, the first chamber 11 and the second chamber 12 are arranged along the second direction, the second direction intersects the first direction, and the airflow corner is formed between the first airflow passage and the second airflow passage. In this way, the space can be saved, the length of the airflow passage can be extended in a smaller volume, and the temperature of the airflow at the air outlet 14 can be reduced.

[0098] Referring to Figure 2 In some embodiments, the filter rod 100 comprises a main partition plate 40, the main partition plate 40 is used to separate the first chamber 11 and the second chamber 12, the first chamber 11 and the second chamber 12 are respectively located on two sides of the main partition plate 40, the main partition plate 40 has a secondary communication port for communicating the rear chamber and the connecting chamber; or the main partition plate 40 cooperates with the body 10 to form a main communication port 41 for communicating the first chamber 11 and the second chamber 12. The arrangement of the main partition plate 40 can separate the filter rod 100 into the first chamber 11 and the second chamber 12. The first chamber 11 and the second chamber 12 are separated by the main partition plate 40, which is simple and convenient. In other embodiments, the first chamber 11 and the second chamber 12 can also be separated in other ways.

[0099] Referring to Figure 2 In some embodiments, the main partition plate 40 extends along the first direction, and the main communication port 41 is located between the middle part of the main partition plate 40 in the first direction and the end part close to the air outlet 14. The main partition plate 40 extends along the first direction, which can extend the shortest length of the airflow passage. The main communication port 41 is located between the middle part of the main partition plate 40 in the first direction and the end part close to the air outlet 14, which can form an airflow corner at the main communication port 41, extend the shortest length of the first airflow passage, fully play the filtering effect, and improve the utilization rate of solid filtering particles.

[0100] Referring to Figure 2 In some embodiments, the second chamber 12 comprises a rear chamber 121 and a connecting chamber 122, the rear chamber 121 communicates with the air outlet 14, and the rear chamber 121 has a rear airflow passage. The connecting chamber 122 communicates with the first chamber 11, and the connecting chamber 122 has a connecting passage (not labeled), the connecting passage communicates with the rear airflow passage and the first airflow passage respectively. Among them, the connecting passage forms an airflow corner; or at least one of the first airflow passage and the rear airflow passage forms an airflow corner with the connecting passage. The formation of the airflow corner can reduce the volume of the filter rod 100 while ensuring at least one of the better filtering effect, the flavoring effect and the cooling effect, and realize the miniaturization of the filter rod 100. Of course, in other embodiments, the connecting chamber 122 can be omitted.

[0101] Exemplarily, when the second chamber 12 comprises the connecting chamber 122, the flow direction of the airflow can change to form the airflow corner when the airflow flows through the connecting passage.

[0102] Exemplarily, when the second chamber 12 comprises the connecting chamber 122, the connecting passage and the first airflow passage can form an airflow corner, or the connecting passage and the rear airflow passage can form an airflow corner. Exemplarily, the flow direction of the airflow changes to form the airflow corner when the airflow flowing out of the first airflow passage flows into the connecting passage. Exemplarily, the flow direction of the airflow changes to form the airflow corner when the airflow flowing out of the connecting passage flows into the rear airflow passage.

[0103] Exemplarily, when the second chamber 12 comprises the connecting chamber 122, the connecting passage and the first airflow passage can form a first airflow corner, and the connecting passage and the rear airflow passage can form a second airflow corner. The angle of the first airflow corner can be the same as or different from the angle of the second airflow corner.

[0104] Exemplarily, when the second chamber 12 comprises the connecting chamber 122, the airflow can exchange heat with the chamber wall of the connecting chamber 122 or the passage wall of the connecting passage when the airflow flows through the connecting chamber 122, so as to reduce the temperature of the airflow and avoid scalding the user when the user inhales.

[0105] Please refer to Figure 2 In some embodiments, the filter 100 comprises a secondary partition 50, the secondary partition 50 is used to separate the rear chamber 121 and the connecting chamber 122, the rear chamber 121 and the connecting chamber 122 are respectively located on two sides of the secondary partition 50, and the secondary partition 50 has a secondary communication port 51 for communicating the rear chamber 121 and the connecting chamber 122; or the secondary partition 50 cooperates with the body 10 to form the secondary communication port 51 for communicating the rear chamber 121 and the connecting chamber 122. It can be understood that the secondary partition 50 can separate the second chamber 12 into the rear chamber 121 and the connecting chamber 122, so that the rear chamber 121 and the connecting chamber 122 can be respectively used for different treatments of the airflow, such as one is used for setting the flavoring part 30 to flavor the airflow, and the other is used for at least one of cooling, flavoring, filtering, and moisturizing treatment of the airflow.

[0106] Please refer to Figure 2 In some embodiments, the secondary partition 50 extends along the first direction to lengthen the length of the airflow passage. The secondary communication port 51 is located between the middle part of the secondary partition 50 in the first direction and the end part close to the air inlet 13, so as to form an airflow corner at the secondary communication port 51, lengthen the shortest length of the rear airflow passage and the shortest length of the connecting passage, fully exert the flavoring effect, and improve the utilization rate of the solid flavoring particles.

[0107] Please refer to Figure 2 In some embodiments, the flavoring part 30 is arranged in the rear chamber 121, and the connecting chamber 122 is empty. When the airflow flows through the connecting chamber 122, the airflow can exchange heat with the wall of the connecting chamber 122, achieving the cooling of the airflow. For example, the size of the connecting chamber 122 is smaller than the size of the rear chamber 121. For example, the size of the connecting chamber 122 is smaller than the size of the first chamber 11. For example, the number of connecting chambers 122 includes multiple, and multiple connecting chambers 122 are arranged at intervals.

[0108] For example, the size of the connecting chamber 122 is smaller than the size of the rear chamber 121, and the size of the connecting chamber 122 is smaller than the size of the first chamber 11, multiple connecting chambers 122 are arranged at intervals, and the airflow in the first chamber 11 can enter the rear chamber 121 through different connecting chambers 122 to increase the heat exchange efficiency. It should be noted that the separation of the rear chamber 121 and the connecting chamber 122 can also not use the auxiliary partition plate 50, for example, at least one communication pipe is arranged between the rear chamber 121 and the connecting chamber 122, and the rear chamber 121 and the connecting chamber 122 are communicated by the communication pipe, at this time, the communication pipe forms the connecting chamber 122; or a communication block is arranged between the rear chamber 121 and the connecting chamber 122, and at least one communication hole is opened on the communication block, and the rear chamber 121 and the connecting chamber 122 are communicated by the communication hole, at this time, the communication hole forms the connecting chamber 122.

[0109] Please refer to Figure 3 In some embodiments, the flavoring part 30 includes a first flavoring part 31 and a second flavoring part 32. The first flavoring part 31 is arranged in the rear chamber 121, and the first flavoring part 31 includes a plurality of first flavoring particles adsorbing flavoring substances. The second flavoring part 32 is arranged in the connecting chamber 122, and the second flavoring part 32 includes a plurality of second flavoring particles adsorbing flavoring substances. In this way, when the airflow flowing out of the first chamber 11 flows through the second flavoring part 32 at the connecting chamber 122, the second flavoring particles of the second flavoring part 32 can add aroma to the airflow, and can also filter the airflow, adsorb or filter harmful substances and the like of small and medium-sized particles in the airflow, and can provide a relatively pure environment for the first flavoring part 31 arranged in the rear chamber 121, thereby relieving the adsorption and filtration pressure of the solid first flavoring particles of the first flavoring part 31, avoiding the difficulty of the first flavoring particles of the first flavoring part 31 to release flavoring substances after adsorbing a large amount of substances, providing an environment for the first flavoring particles of the first flavoring part 31 to fully release flavoring substances, so that the first flavoring particles of the first flavoring part 31 can fully release flavoring substances, thereby further improving the good filtering effect and aroma adding effect, ensuring the consistency of the front and rear tastes, and improving the taste of the suction. It should be noted that the first flavoring particles and the second flavoring particles can be the same or different.

[0110] In some embodiments, the volume V21 of the connecting chamber 122 and the volume V22 of the post-positioned chamber 121 satisfy: V22≥0.8V21, such as V22=0.8V21, or V22=V21 or 1.5V21, etc. In this way, the service life of the flavoring function is prolonged, and a certain cooling effect is achieved.

[0111] Referring to Figure 2 In some embodiments, the first chamber 11, the connecting chamber 122 and the post-positioned chamber 121 are arranged in sequence along the second direction, at least part of the first air passage extends along the first direction, and at least part of the post-positioned air passage extends along the first direction. In this way, space can be saved, the air path is appropriately extended, and the temperature of the airflow at the air outlet 14 is reduced.

[0112] Referring to Figure 2 In some embodiments, the two ends of the connecting chamber 122 are respectively in communication with the first chamber 11 and the post-positioned chamber 121, and at least part of the connecting passage extends along the first direction. In this way, the formation of the airflow corner is ensured, and the shortest length of the first air passage, the connecting passage and the post-positioned air passage is as long as possible.

[0113] In some embodiments, the second direction is perpendicular to the first direction, and the minimum airflow corner ∠A between the first air passage and the second air passage satisfies: 120°≥∠A≥5°, such as ∠A being 120°, 60°, 5° or any other suitable angle between 5°-120°. In the case where the volumes of the first chamber 11 and the second chamber 12 are unchanged, the reasonable miniaturization of the minimum airflow corner ∠A is conducive to extending the air path, thereby facilitating the cooling of the airflow passing through. Of course, in other embodiments, the angle between the second direction and the first direction can be flexibly adjusted, for example, 80 degrees or 100 degrees, etc.

[0114] Exemplarily, the first direction is as shown by the Y direction in Figure 2 , and the second direction is as shown by the X direction in Figure 2 .

[0115] Referring to Figure 4 or Figure 5 In some embodiments, the air inlet 13 and the air outlet 14 are respectively provided at the two ends of the filter rod 100 in the first direction, and the first chamber 11 and the second chamber 12 are arranged along the first direction. In this way, the filtering part 20 can filter the airflow passing through the first chamber 11, the flavoring part 30 can flavor the airflow passing through the second chamber 12, and the structure of the filter rod 100 is simple. Exemplarily, the first direction is as shown by the Y direction in Figure 4 .

[0116] Referring to Figure 5In some embodiments, the second chamber 12 is arranged around at least a portion of the first chamber 11, and the side of the first chamber 11 is in communication with the second chamber 12. In this way, the airflow can flow from the middle of the first chamber 11 to the side of the first chamber 11 and then flow out of the first chamber 11 to the second chamber 12, thereby saving space, extending the length of the airflow passage in a smaller volume, and reducing the temperature of the airflow at the air outlet 14.

[0117] Referring to Figure 5 In some embodiments, the first chamber 11 is arranged in the second chamber 12, and the filter rod 100 comprises a partition cylinder 60 for partitioning the first chamber 11 and the second chamber 12, the partition cylinder 60 having a partition communication port (not shown in the figure) in communication with the first chamber 11 and the second chamber 12. The partition cylinder 60 can limit the solid filter particles in the first chamber 11 and separate the solid filter particles and the solid flavoring particles in the first chamber 11 and the second chamber 12, respectively.

[0118] Referring to Figure 5 In some embodiments, the partition cylinder 60 comprises a surrounding plate 61 and an end plate 62, the surrounding plate 61 being arranged around the air inlet 13 and provided with the partition communication port, and the end plate 62 being connected to the end of the surrounding plate 61 away from the air inlet 13, the end plate 62 and the surrounding plate 61 together partitioning the first chamber 11 and the second chamber 12. For example, the airflow can flow from the air inlet 13 to the first chamber 11 from bottom to top, the end plate 62 can prevent the airflow in the first chamber 11 from flowing directly from the top of the surrounding plate 61 to the second chamber 12, and the airflow in the middle and top of the first chamber 11 can flow to the surrounding plate 61 and then flow to the second chamber 12 through the partition communication port, thereby extending the airflow path as much as possible in a limited space.

[0119] It can be understood that the number of partition communication ports can be one or more. For example, a plurality of partition communication ports can be arranged on the surrounding plate 61.

[0120] For example, the partition cylinder 60 can also be a semi-spherical cylinder or a conical cylinder, etc.

[0121] Referring to Figure 2 In some embodiments, the body 10 comprises a first shell 15 and a second shell 16, the air inlet 13 is formed in the first shell 15, the air outlet 14 is formed in the second shell 16, and the second shell 16 is connected to the first shell 15 to form the first chamber 11 and the second chamber 12 between the first shell 15 and the second shell 16. In this way, the structure is simple and easy to assemble.

[0122] Referring to Figure 3In some embodiments, the body 10 further comprises a first intermediate cover 17, at least one of the first shell 15 and the second shell 16 cooperates with the first intermediate cover 17 to form the first chamber 11, and the first intermediate cover 17 is capable of limiting the solid filtering particles within the first chamber 11 to avoid the leakage of the solid filtering particles flowing out of the first chamber 11. Please refer to Figure 3 It can be understood that the first intermediate cover 17 is also capable of preventing the airflow from flowing out of the first chamber 11 upward away from the one end of the air inlet 13.

[0123] Exemplarily, the first intermediate cover 17 cooperates with the first shell 15 to form the first chamber 11; or, the first intermediate cover 17 cooperates with the second shell 16 to form the first chamber 11; or, the first intermediate cover 17, the first shell 15 and the second shell 16 cooperates to form the first chamber 11.

[0124] Please refer to Figure 3 In some embodiments, the body 10 further comprises a second intermediate cover 18, at least one of the first shell 15 and the second shell 16 cooperates with the second intermediate cover 18 to form the second chamber 12, and the second intermediate cover 18 has a gas passage 181 communicating the second chamber 12 and the air outlet 14, and the second intermediate cover 18 is capable of limiting the solid flavoring particles within the second chamber 12 to avoid the leakage of the solid flavoring particles flowing out of the second chamber 12.

[0125] Exemplarily, the second intermediate cover 18 cooperates with the first shell 15 to form the second chamber 12; or, the second intermediate cover 18 cooperates with the second shell 16 to form the second chamber 12; or, the second intermediate cover 18, the first shell 15 and the second shell 16 cooperates to form the second chamber 12.

[0126] Please refer to Figure 3 In some embodiments, the body 10 further comprises a first intermediate cover 17 and a second intermediate cover 18, at least one of the first shell 15 and the second shell 16 cooperates with the first intermediate cover 17 to form the first chamber 11, and the first intermediate cover 17 is capable of limiting the solid filtering particles within the first chamber 11. At least one of the first shell 15 and the second shell 16 cooperates with the second intermediate cover 18 to form the second chamber 12, and the second intermediate cover 18 has a gas passage 181 communicating the second chamber 12 and the air outlet 14, and the second intermediate cover 18 is capable of limiting the solid flavoring particles within the second chamber 12. In this way, the leakage of the solid filtering particles flowing out of the first chamber 11 can be prevented, and the leakage of the solid flavoring particles flowing out of the second chamber 12 can be prevented. Please refer to Figure 3 It can be understood that the first intermediate cover 17 is also capable of preventing the airflow from flowing out of the first chamber 11 upward away from the one end of the air inlet 13 to extend the air path in the limited space and reduce the temperature of the airflow at the air outlet 14. Exemplarily, upward refers to Figure 3The positive direction of the Y direction.

[0127] Exemplarily, the first intermediate cover 17 and the second intermediate cover 18 can be integrally formed, so that the structure is simple, the processing is convenient, and the assembly is simple. Exemplarily, the first intermediate cover 17 can also be connected with the second intermediate cover 18 by at least one of the following connection modes: adhesive connection, snap connection, etc.

[0128] In some embodiments, the first intermediate cover 17 covers the first chamber 11, the second intermediate cover 18 covers the second chamber 12, and the first intermediate cover 17 and the second intermediate cover 18 are integrally connected, so that the processing is simple, the number of component assemblies is reduced, and the solid filter particles and the solid flavoring particles can be reliably fixed in the first chamber 11 and the second chamber 12.

[0129] Exemplarily, the first intermediate cover 17 is an intermediate cover made of silica gel. Since silica gel is flexible, the intermediate cover made of silica gel is beneficial to realize the close connection of the first intermediate cover 17 with other components and improve the connection reliability.

[0130] Exemplarily, the second intermediate cover 18 is an intermediate cover made of silica gel. Since silica gel is flexible, the intermediate cover made of silica gel is beneficial to realize the close connection of the second intermediate cover 18 with other components and improve the connection reliability.

[0131] It can be understood that the number of the air passing ports 181 includes one or more. Exemplarily, the number of the air passing ports 181 includes multiple, and the multiple air passing ports 181 are spaced apart on the second intermediate cover 18.

[0132] Exemplarily, the size of the air passing port 181 is smaller than the minimum particle size of the solid filter particles and the solid flavoring particles, so as to avoid the leakage of the particle flow.

[0133] Please refer to Figure 6 In some embodiments, the filter 100 further includes a moisture retention part 70, which is arranged in at least one of the first chamber 11 and the second chamber 12. In the flow direction of the airflow, the moisture retention part 70 is located between the filter part 20 and the flavoring part 30, and the moisture retention part 70 is used to increase the moisture in the airflow, so that the taste of the airflow output from the air outlet 14 is moist. Exemplarily, the moisture retention part 70 is arranged in the first chamber 11.

[0134] In some embodiments, the moisture retention part 70 includes at least one of a moisture retention aerogel and a moisture retention burst bead, which reduces the use of liquid moisture retention substances, effectively reduces or prevents the occurrence probability of liquid leakage, and improves the user's use experience.

[0135] Please refer to Figure 6In some embodiments, the filter 100 further comprises a liquid absorbing portion 80 arranged in at least one of the first chamber 11 and the second chamber 12. The liquid absorbing portion 80 is arranged upstream of the flavoring portion 30 in the flow direction of the airflow, and is configured to absorb water droplets. By absorbing the water droplets via the liquid absorbing portion 80, the influence of at least one of the solid-state filtering particles and the solid-state flavoring particles on the filtering effect due to absorption of the water droplets can be reduced, and the water droplets can be prevented from flowing from at least one of the air inlet 13, the air outlet 181, the main communication port 41, the auxiliary communication port 51, etc. to other locations to affect the user experience. Understandably, the water droplets absorbed by the liquid absorbing portion 80 are different from the moisture increased by the moisture retaining portion 70, and the water droplets are condensate generated during the heat exchange process, most of which will adhere to the inner wall surface of the first chamber 11 and the second chamber 12.

[0136] In some embodiments, the liquid absorbing portion 80 comprises at least one of liquid absorbing cotton, dry beads, and porous absorbing accessories, etc., which is economical.

[0137] In some embodiments, the solid-state filtering particles comprise at least one of porous ceramic particles, carbon particles, or mica particles, etc., so that the adsorption effect is good and the cost is low.

[0138] In some embodiments, at least part of the solid-state filtering particles are weakly alkaline porous ceramic particles made of kaolin material and have a porosity of 35%-55%. The porous ceramic particles can effectively adsorb harmful substances in the airflow, and the weakly alkaline porous ceramic particles can neutralize the acid gas in the airflow to prevent the airflow from being sour when being inhaled by the user. Understandably, the porous ceramic particles have a porosity of 35%-55% (including 35%, 45%, 55%, or any other value between 35% and 55%), so that the ceramic particles have good strength and good adsorption or filtering capacity.

[0139] For example, the particle size of the ceramic particles is 1.0mm-3.0mm (such as 1.0mm, 2.0mm, 3.0mm, or any other suitable value between 1.0mm and 3.0mm), so as to increase the space utilization.

[0140] In some embodiments, the flavor-enhancing section 30 comprises a plurality of solid porous plant particles adsorbed with flavor-enhancing substances, and the porosity is 42%-52% (e.g., 42%, 45%, 52%, or any other value among 42%-52%). The flavor-enhancing substances include at least one of a smoke-generating agent, tobacco flavoring, acetic acid, triacetin, and menthyl acetate. The adsorption amount of the flavor-enhancing substances in the solid porous plant particles is 50%-70% (e.g., 50%, 60%, 70%, or any other value among 50%-70%). The solid porous plant particles include at least one of tea-based particles, bamboo leaf-based particles, lily leaf-based particles, and tobacco leaf-based particles. This ensures that the plant particles have good strength and can adsorb a large amount of flavor-enhancing substances, thereby guaranteeing the aroma-enhancing effect.

[0141] In some embodiments, the solid filter particles and solid flavor-enhancing particles are spherical, quasi-spherical, or polyhedral, with a particle size of 0.4 mm to 3.4 mm (e.g., 0.4 mm, 2.0 mm, 3.4 mm, or any other suitable value between 0.4 mm and 3.4 mm) to increase space utilization. For example, the solid filter particles and solid flavor-enhancing particles are spherical or quasi-spherical, which allows for irregular arrangement of the solid filter particles and solid flavor-enhancing particles, forming irregular air passages, resulting in better adsorption and flavor enhancement effects.

[0142] For example, airflow corners may include acute angles, right angles, or obtuse angles. Airflow corners may be appropriately rounded for ease of manufacturing. Understandably, the number of airflow corners may include one, two, three, or more, and is not limited herein.

[0143] For example, the airflow direction changes when the airflow passes through at least one of the first chamber 11, the second chamber 12, the first air passage, the second air passage, or the intersection of adjacent passages. The airflow bend includes the angle formed between the airflow direction before the change and the airflow direction after the change at the location or region where the airflow direction changes.

[0144] Please see Figure 2 and Figure 7 For example, the filter 100 has an air inlet 91. The first chamber 11 is connected to the air inlet 13 through the air inlet 91. Airflow enters the first chamber 11 through the air inlet 91. The airflow in the first chamber 11 flows to the connecting chamber 122 through the main connecting port 41. The airflow in the connecting chamber 122 flows to the rear chamber 121 through the secondary connecting port 51. The airflow in the rear chamber 121 passes through the air inlet 181 (see [reference]). Figure 3) and the air outlet 14 outputs to the outside of the filter 100. The connecting line between the middle part of the air inlet 91 and the middle part of the main communication port 41 is W1, the connecting line between the middle part of the main communication port 41 and the middle part of the auxiliary communication port 51 is W2, and the connecting line between the middle part of the auxiliary communication port 51 and the middle part of the air passing port 181 is W3. The number of airflow corners includes at least two, one of which includes the included angle formed between the connecting line W1 and the connecting line W2, and the other of which includes the included angle formed between the connecting line W2 and the connecting line W3.

[0145] Exemplarily, the number of air inlets, the main communication ports 41, the auxiliary communication ports 51 and the air passing ports 181 can each include one or more. The connecting lines W1, W2 and W3 also correspondingly include one or more, the included angle between the connecting line W1 and the connecting line W2 can also include one or more, and the included angle between the connecting line W2 and the connecting line W3 can also include one or more.

[0146] Exemplarily, one or more airflow corners can be formed between the first air passing channel and the second air passing channel, and the plurality of airflow corners can be the same or different. Understandably, the smallest airflow corner between the first air passing channel and the second air passing channel is the smallest one of the airflow corners.

[0147] Exemplarily, Figure 2 to Figure 6 The dashed arrows represent the general flow path of the airflow.

[0148] Please refer to Figure 1 and Figure 8 The embodiment of the present application also provides an aerosol generating device, which comprises a main machine 200 and the filter 100 of any one of the above embodiments, and the main machine 200 is used for heating the aerosol generating substrate to generate aerosol. The filter 100 is connected with the main machine 200, and the aerosol can flow into the filter 100 through the air inlet 13.

[0149] Please refer to Figure 9 In some embodiments, the main machine 200 is provided with a heating element 201, and the heating element 201 is used for heating the aerosol generating substrate 300 to generate aerosol. Exemplarily, the aerosol generating substrate 300 is a cigarette. The cigarette can be a traditional cigarette or a special cartridge, etc.

[0150] Exemplarily, the heating element 201 is used for circumferentially heating the aerosol generating substrate 300 to generate aerosol. In other embodiments, the heating element 201 can also centrally heat or mixedly heat the aerosol generating substrate 300 to generate aerosol, and the mixedly heating includes the combination of the circumferential heating and the central heating.

[0151] Please refer to Figure 9In some embodiments, the heating element 201 is formed with a receiving cavity 2011 and a substrate inlet 2012 in communication with the receiving cavity 2011, the substrate inlet 2012 is arranged at an end of the heating element 201 away from the filter rod 100, and the aerosol-generating substrate 300 can enter or move out of the receiving cavity 2011 through the substrate inlet 2012.

[0152] The aerosol-generating device of the above embodiment, since the first chamber 11 of the filter rod 100 is provided with the filter portion 20 including a plurality of solid filter particles, the second chamber 12 of the filter rod 100 is in communication with the first chamber 11 and is provided with the flavoring portion 30 including a plurality of solid flavoring particles adsorbed with flavoring substances, and the first chamber 11 is located upstream of the second chamber 12 in the flow direction of the airflow, so that the solid filter particles can filter the airflow flowing through the first chamber 11, and the solid flavoring particles adsorbed with flavoring substances can fragrance the airflow flowing through the second chamber 12. Compared with the way of forming a fragrance module by an essential oil tank and a ceramic block, the filter rod 100 of the embodiment reduces or avoids the use of liquid flavoring essential oil, thereby effectively reducing or preventing the probability of liquid leakage and improving the user experience.

[0153] In the description of the present application, it should be noted that unless specifically defined and limited otherwise, the terms "mounting", "connecting", "connecting", "mechanically coupling", "coupling" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected. It can be mechanically connected or electrically connected. It can be directly connected or indirectly connected through an intermediate medium. It can be the communication inside two elements or the interaction relationship between two elements. The mechanical coupling or coupling of two components includes direct coupling and indirect coupling, for example, direct fixed connection, connection through transmission mechanism, etc. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0154] In the present application, unless otherwise specifically defined and limited, "on" or "under" the first feature of the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, "on", "above" and "above" of the first feature of the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" of the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0155] The foregoing disclosure provides many different embodiments or examples for implementing different structures of the present application. For simplicity of disclosure, the foregoing description has focused on certain examples of components and arrangements of the present application. Alternatives, of course, will be apparent to those familiar with the art in view of this description. The disclosure is intended to embrace all alternatives, modifications, and variations of the present application. Furthermore, the disclosure can take

[0156] In the description of the present application, the terms "one embodiment", "some embodiments", "an exemplary embodiment", "an example", "a specific example", or "examples" mean that the described implementation, method, feature, structure, material or characteristic is included in at least one embodiment or example of the present application. Such terms do not necessarily refer to the same embodiment or example, and are used interchangeably. Furthermore, the described features, advantages, characteristics, materials, or benefits can be combined in any suitable manner in one or more embodiments or examples.

[0157] The above description is only specific embodiments of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present application, and these modifications or replacements should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A filter, characterized in that, The filter tip comprises: a body, the body being formed with a first chamber and a second chamber in communication with the first chamber, the body being provided with an air inlet and an air outlet in communication with the outside, the air inlet being in communication with the first chamber, and the air outlet being in communication with the second chamber; a filtering portion provided in the first chamber, the filtering portion having a first air passage, and the filtering portion comprising a plurality of solid filtering particles, at least part of the channel wall of the first air passage being formed by the solid filtering particles; a flavoring portion provided in the second chamber, the flavoring portion having a second air passage, and the flavoring portion comprising a plurality of solid flavoring particles having flavoring substances adsorbed thereon, at least part of the channel wall of the second air passage being formed by the solid flavoring particles; a moisture retaining portion provided in at least one of the first chamber and the second chamber, the moisture retaining portion being located between the filtering portion and the flavoring portion in the flow direction of the airflow, and the moisture retaining portion being used for increasing the moisture in the airflow; wherein, in the flow direction of the airflow, the first chamber is located upstream of the second chamber, the volume V1 of the first chamber and the volume V2 of the second chamber satisfy 12V1≥V2≥1.2V1, and the shortest length L1 of the first air passage and the shortest length L2 of the second air passage satisfy 5L1≥L2>L1.

2. A filter according to claim 1, characterised in that The air inlet and the air outlet are respectively provided at two ends of the filter tip in a first direction, the first chamber and the second chamber are arranged along a second direction, the second direction intersects the first direction, and the airflow corner is formed between the first air passage and the second air passage.

3. A filter according to claim 2, characterised in that, The filter tip further comprises a main partition plate, the main partition plate being used for separating the first chamber and the second chamber, the first chamber and the second chamber being respectively located on two sides of the main partition plate, the main partition plate having a main communication port for communicating the first chamber and the second chamber, or the main partition plate and the body cooperate to form the main communication port for communicating the first chamber and the second chamber.

4. A filter according to claim 3, characterised in that The main partition plate extends along the first direction, and the main communication port is located at a position between the middle part of the main partition plate in the first direction and the end part close to the air outlet.

5. A filter according to claim 2, characterised in that The second chamber comprises: a rear chamber in communication with the air outlet, the rear chamber having a rear air passage; a connecting chamber in communication with the first chamber, the connecting chamber having a connecting passage, the connecting passage being in communication with the rear air passage and the first air passage respectively, wherein the airflow corner is formed in the connecting passage; or the airflow corner is formed between at least one of the first air passage and the rear air passage and the connecting passage.

6. A filter according to claim 5, characterised in that The filter comprises a secondary partition plate for separating the rear chamber and the connecting chamber, the rear chamber and the connecting chamber are located on two sides of the secondary partition plate respectively, the secondary partition plate has a secondary communication port for communicating the rear chamber and the connecting chamber, or the secondary partition plate cooperates with the body to form a secondary communication port for communicating the rear chamber and the connecting chamber.

7. A filter according to claim 6, characterised in that The secondary partition plate extends along the first direction, and the secondary communication port is located between the middle part of the secondary partition plate in the first direction and the end part close to the air inlet.

8. A filter according to claim 5, characterised in that The flavoring part is arranged in the rear chamber, and the connecting chamber is empty.

9. A filter according to claim 5, characterised in that The flavoring part comprises: a first flavoring part arranged in the rear chamber, the first flavoring part comprising a plurality of first flavoring particles adsorbing flavoring substances; a second flavoring part arranged in the connecting chamber, the second flavoring part comprising a plurality of second flavoring particles adsorbing flavoring substances.

10. A filter according to claim 9, characterised in that The volume V21 of the connecting chamber and the volume V22 of the rear chamber satisfy: V22≥0.8V21.

11. A filter according to claim 9, characterised in that The first chamber, the connecting chamber and the rear chamber are arranged in sequence along the second direction, at least part of the first air passage extends along the first direction, and at least part of the rear air passage extends along the first direction.

12. A filter according to claim 11, characterised in that The two ends of the connecting chamber are communicated with the first chamber and the rear chamber respectively, and at least part of the connecting passage extends along the first direction.

13. A filter according to any one of claims 2 to 8, characterised in that, The second direction is perpendicular to the first direction, and the minimum airflow corner ∠A between the first air passage and the second air passage satisfies: 120°≥∠A≥5°.

14. A filter according to claim 1 characterised in that, The air inlet and the air outlet are arranged at two ends of the filter in the first direction, and the first chamber and the second chamber are arranged along the first direction.

15. A filter according to claim 14, characterised in that The second chamber is arranged around at least part of the first chamber, and the circumferential side of the first chamber is communicated with the second chamber.

16. A filter according to claim 15, characterised in that The first chamber is located in the second chamber, and the filter comprises a separation cylinder for separating the first chamber and the second chamber, the separation cylinder has a separation communication port for communicating the first chamber and the second chamber.

17. A filter according to claim 16, characterised in that The separation cylinder comprises: a surrounding plate arranged around the air inlet, the surrounding plate being provided with the separation communication port; an end plate connected to one end of the surrounding plate away from the air inlet, the end plate and the surrounding plate jointly separating the first chamber and the second chamber.

18. A filter according to claim 1 characterised in that, The body comprises: a first shell, the air inlet being formed in the first shell; a second shell, the air outlet being formed in the second shell, the second shell being connected with the first shell to form the first chamber and the second chamber between the first shell and the second shell.

19. A filter according to claim 18, characterised in that The body further comprises: a first intermediate cover, at least one of the first shell and the second shell cooperating with the first intermediate cover to form the first chamber, the first intermediate cover being capable of limiting a plurality of solid filtering particles in the first chamber.

20. A filter according to claim 18, characterised in that The body further comprises: A second intermediate cover, at least one of the first housing and the second housing cooperates with the second intermediate cover to form the second chamber, the second intermediate cover has a gas passage communicating the second chamber and the gas outlet, the second intermediate cover is capable of confining a plurality of the solid flavoring particles in the second chamber.

21. A filter according to claim 18, characterised in that The body further comprises: A first intermediate cover, at least one of the first housing and the second housing cooperates with the first intermediate cover to form the first chamber, the first intermediate cover is capable of confining a plurality of the solid filtering particles in the first chamber; A second intermediate cover, at least one of the first housing and the second housing cooperates with the second intermediate cover to form the second chamber, the second intermediate cover has a gas passage communicating the second chamber and the gas outlet, the second intermediate cover is capable of confining a plurality of the solid flavoring particles in the second chamber.

22. A filter according to claim 21, characterised in that The first intermediate cover covers the first chamber, the second intermediate cover covers the second chamber, and the first intermediate cover is integrally connected with the second intermediate cover.

23. The filter according to claim 1, characterized in that The moisture retention part comprises at least one of a moisture retention aerogel and a moisture retention burst bead.

24. The filter according to claim 1, characterized in that, The filter further comprises: A liquid absorbing part, the liquid absorbing part is arranged in at least one of the first chamber and the second chamber, and in the flow direction of the airflow, the liquid absorbing part is located upstream of the flavoring part, and the liquid absorbing part is used for absorbing water droplets.

25. A filter according to claim 24, characterised in that The liquid absorbing part comprises at least one of liquid absorbing cotton, drying beads and a porous absorbing accessory.

26. The filter according to claim 1, characterized in that The plurality of solid flavoring particles comprises at least one of porous ceramic particles, carbon particles or mica particles.

27. A filter according to claim 1 characterised in that At least part of the solid flavoring particles are weakly alkaline porous ceramic particles made of kaolin and have a porosity of 35%-55%.

28. The filter according to claim 1, characterized in that The flavoring part is a plurality of solid porous plant particles having a flavoring substance absorbed thereon and having a porosity of 42%-52%, wherein the flavoring substance comprises at least one of a smoking agent, a smoke flavor, acetic acid, glyceryl triacetate and menthol acetate, the solid porous plant particles have an adsorption amount of the flavoring substance of 50%-70%, and the plurality of solid porous plant particles comprise at least one of tea-based particles, bamboo leaf-based particles, lily flower leaf-based particles and tobacco leaf-based particles.

29. A filter according to claim 1 characterised in that The solid flavoring particles are spherical, spheroidal or polyhedral, and have a particle size of 0.4mm-3.4mm.

30. An aerosol-generating device comprising, Comprise: A main machine for heating an aerosol generating substrate to generate an aerosol; And The filter according to any one of claims 1-29, the filter is connected with the main machine, and the aerosol can flow into the filter through the gas inlet.

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