Aerosol-generating device and aerosol-generating system

Abstract

The utility model relates to the technical field of smoking sets, and discloses an aerosol generating device and an aerosol generating system.The aerosol generating device comprises a main body part, the main body part is provided with a heating cavity, and the heating cavity is used for heating an aerosol generating product to generate aerosol; the suction nozzle part is movably connected with the main body part and used for being sucked by a user, and the suction nozzle part is configured to open or close the heating cavity under external actuation; when the heating cavity is closed, the suction nozzle part is communicated with the heating cavity; when the heating cavity is closed, one end, close to the suction nozzle part, of the main body part is matched with the step part; and the sealing piece is used for sealing a fit clearance between the main body part and the step part. By using the aerosol generating device, an aerosol generating product can be simplified, and the cost can be reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of smoking sets, and in particular to an aerosol generating device and an aerosol generating system. BACKGROUND

[0002] An electronic smoking set provides power through a battery to start a heating assembly to heat a tobacco segment of an aerosol generating article inserted therein to generate aerosol, and a user can then draw the generated aerosol through a mouthpiece segment of the aerosol generating article.

[0003] The aerosol generating article adapted to the electronic smoking set in the related art needs to have at least a tobacco segment and a mouthpiece segment for a user to draw, and the aerosol generating article is complicated to make and has a high cost. CONTENT OF THE UTILITY MODEL

[0004] The present application provides an aerosol generating device and an aerosol generating system, so that the aerosol generating article can be simplified and the cost can be reduced by using the aerosol generating device.

[0005] In one aspect, the present application provides an aerosol generating device, comprising: a main body portion, the main body portion being provided with a heating cavity, the heating cavity being used for heating an aerosol generating article to generate aerosol; a mouthpiece portion, the mouthpiece portion being movably connected with the main body portion and being used for a user to draw, the mouthpiece portion being configured to open or close the heating cavity under external actuation; wherein the mouthpiece portion communicates with the heating cavity when the heating cavity is closed; the mouthpiece portion is provided with a stepped portion, an end of the main body portion close to the mouthpiece portion is matched with the stepped portion when the heating cavity is closed; a sealing member, the sealing member being used for sealing a matching gap between the main body portion and the stepped portion.

[0006] In some embodiments, the sealing member comprises a sealing ring; the sealing ring is sleeved on an outer periphery or an inner wall of the stepped portion; or the sealing ring is sleeved on an outer periphery or an inner wall of the main body portion close to the stepped portion.

[0007] In some embodiments, a sealing groove is formed on the stepped portion or the main body portion, and at least part of the sealing ring is arranged in the sealing groove.

[0008] In some embodiments, an aerosol passage is arranged in the interior of the mouthpiece portion, the aerosol passage communicates with the heating cavity when the heating cavity is closed; the sealing member further comprises a sealing seat, the sealing seat is arranged around an opening of the heating cavity, and the sealing seat is used for sealing a gap between the aerosol passage and the heating cavity.

[0009] In some embodiments, the sealing seat is arranged on the inner wall or the outer periphery of the aerosol passage near one end of the heating cavity; or the sealing seat is arranged on the inner wall or the outer periphery of the heating cavity near one end of the aerosol passage.

[0010] In some embodiments, a limiting groove is arranged on one end of the heating cavity near the aerosol passage or on the aerosol passage, and at least part of the sealing seat is located in the limiting groove.

[0011] In some embodiments, the sealing seat comprises a seat body and an extension, the seat body is arranged around the outer periphery of one end of the extension, at least part of the seat body is located in the limiting groove, and the extension is used to seal the gap between the aerosol passage and the heating cavity.

[0012] In some embodiments, a first connecting member is arranged on the main body part, a second connecting member corresponding to the first connecting member is arranged on the mouthpiece part, and the first connecting member is configured to cooperate with or separate from the second connecting member under external actuation.

[0013] In some embodiments, the first connecting member comprises one of a buckle and a clamping groove, and the second connecting member comprises the other of the buckle and the clamping groove.

[0014] In some embodiments, the first connecting member and the second connecting member each comprise a magnetic attraction member, and the mouthpiece part is attracted to the main body part by the magnetic attraction member.

[0015] Another aspect of the present application provides an aerosol generating system comprising the above-mentioned aerosol generating device and an aerosol generating article, the aerosol generating device comprising a mouthpiece part and a main body part, the mouthpiece part being movably connected to the main body part, the main body part being provided with a heating cavity, the mouthpiece part being configured to open or close the heating cavity under external actuation; the heating cavity being used to accommodate at least part of the aerosol generating article and heat the aerosol generating article to generate aerosol; the mouthpiece part being provided with a stepped portion, one end of the main body part near the mouthpiece part being matched with the stepped portion when the heating cavity is closed; the aerosol generating device further comprising a sealing member, the sealing member being used to seal the matching gap between the main body part and the stepped portion; a user inhales the generated aerosol through the mouthpiece part; and the aerosol generating article comprising an aerosol generating substrate.

[0016] The beneficial effects of the present application at least include:

[0017] In the aerosol generating apparatus and aerosol generating system provided in the above embodiments, the aerosol generating apparatus includes a main body portion having a heating chamber and a suction nozzle portion movably connected to the main body portion. The suction nozzle portion can open or close the heating chamber under external actuation. When the heating chamber is closed, the suction nozzle portion communicates with the heating chamber, thereby allowing the aerosol generated within the heating chamber to be delivered to the suction nozzle for the user to inhale. The suction nozzle portion is provided with a stepped portion, which can engage with the end of the main body portion near the suction nozzle portion when the heating chamber is closed. The aerosol generating apparatus also includes a sealing element for sealing the engagement gap between the main body portion and the stepped portion. Through the movable connection of the suction nozzle portion relative to the main body portion, when the heating chamber is open, the aerosol generating product can be placed in or removed from the heating chamber; when the heating chamber is closed, the suction nozzle portion can draw in the aerosol generated by heating the aerosol generating product in the heating chamber. Therefore, the aerosol-generating product can be prepared by including only the aerosol-generating matrix and does not need to include a suction unit. Thus, the aerosol-generating device can be used to simplify the aerosol-generating product and reduce costs. Attached Figure Description

[0018] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0019] Figure 1 This is a schematic diagram of the structure of an aerosol generating device provided in an embodiment of this application.

[0020] Figure 2 yes Figure 1 The diagram shows an exploded view of the aerosol generation device.

[0021] Figure 3 This is a schematic diagram of the structure of an aerosol generating device provided in another embodiment of this application.

[0022] Figure 4 yes Figure 3 The diagram shows an exploded view of the aerosol generation device.

[0023] Figure 5 This is a schematic diagram of the structure of a sealing seat provided in one embodiment of this application.

[0024] Figure 6 This is a schematic diagram of the structure of an aerosol generating device provided in another embodiment of this application.

[0025] Figure 7 This is a schematic diagram of the structure of an aerosol generating device provided in another embodiment of this application.

[0026] Figure 8 is Figure 7 a cross-sectional view of an aerosol-generating device.

[0027] Figure 9 is a schematic view of an aerosol-generating system provided by an embodiment of the present application.

[0028] The reference signs are as follows:

[0029] 1 - main body part; 11 - heating cavity; 12 - limiting groove; 13 - first connecting piece; 131 - clamping groove; 132 - first magnetic attraction piece;

[0030] 2 - mouthpiece part; 21 - stepped part; 22 - sealing groove; 23 - aerosol passage; 24 - second connecting piece; 241 - buckle; 242 - second magnetic attraction piece;

[0031] 3 - sealing member; 31 - sealing ring; 32 - sealing seat; 321 - seat body; 322 - extension part;

[0032] 100 - aerosol-generating device;

[0033] 200 - aerosol-generating article;

[0034] 1000 - aerosol-generating system. DETAILED DESCRIPTION

[0035] 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 only a part 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 skilled in the art without creative work fall within the scope of protection of the present application.

[0036] The terms "first", "second", "third" in the present application are only for descriptive purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number or order of the indicated technical features. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative position relationship or movement condition between components, and the directional indications change accordingly if the specific posture (as shown in the drawings) changes. In addition, the terms "comprise" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units is not limited to the listed steps or units, but can optionally include steps or units not listed, or can optionally include other steps or units inherent to the process, method, product or device.

[0037] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive of one another. As will be apparent to those of ordinary skill in the art, embodiments described herein can be combinable with other embodiments.

[0038] It should be noted that when an element is referred to as being "on" another element, it can be directly on the other element or intervening elements can also be present. In cases where one element is referred to as "connecting" another element, it can be directly connected to the other element or intervening elements can also be present. As used herein the terms "vertical", "horizontal", "left", "right" and similar expressions are used for explanation only and are not intended to be limiting.

[0039] Referring to Figure 1 The application provides an aerosol generating device 100, comprising a main body portion 1, a mouthpiece portion 2 and a sealing member 3.

[0040] The main body portion 1 is provided with a heating cavity 11, which is used for heating an aerosol generating article to generate an aerosol.

[0041] The mouthpiece portion 2 is movably connected to the main body portion 1 and is used for user suction. The mouthpiece portion 2 is configured to open or close the heating cavity 11 under external actuation. When the heating cavity 11 is closed, the mouthpiece portion 2 is in communication with the heating cavity 11. Through the movable connection between the mouthpiece portion 2 and the main body portion 1, the aerosol generating article can be placed in or removed from the heating cavity 11 when the heating cavity 11 is opened, and the aerosol generated by heating the aerosol generating article in the heating cavity 11 can be suctioned through the mouthpiece portion 2 when the heating cavity 11 is closed.

[0042] The mouthpiece portion 2 is provided with a stepped portion 21, and an end of the main body portion 1 close to the mouthpiece portion 2 is matched with the stepped portion 21 when the heating cavity 11 is closed. The matching between the end of the main body portion 1 close to the mouthpiece portion 2 and the stepped portion 21 includes that at least a part of the stepped portion 21 is inserted into the end of the main body portion 1 close to the mouthpiece portion 2, or at least a part of the stepped portion 21 is sleeved on the outer periphery of the main body portion 1 close to the mouthpiece portion 2.

[0043] The sealing member 3 is used for sealing the matching gap between the main body portion 1 and the stepped portion 21, so as to prevent the aerosol generated by heating the aerosol generating article in the heating cavity 11 from leaking through the matching gap. The sealing member 3 can also increase the stability of the matching between the mouthpiece portion 2 and the main body portion 1.

[0044] Accordingly, by using the aerosol generating device 100 in the present embodiment, the aerosol generating article can include only the aerosol generating substrate portion at the time of preparation, and can not need to include a puffing portion for a user to puff, so that the production steps of the aerosol generating article can be simplified, and production materials can be saved, and costs can be reduced by using the aerosol generating device 100.

[0045] In addition, the aerosol generating article refers to an article including an aerosol generating substrate, which is intended to be heated rather than combusted to release volatile compounds that can generate an aerosol, and the aerosol generating substrate releases volatile compounds that can generate an aerosol when heated. The aerosol generated by heating the aerosol generating substrate can contain less components known to be harmful, as compared to the aerosol generated by combusting or pyrolytically degrading the aerosol generating substrate. The aerosol generating article can be disposable or reusable. The aerosol generating substrate can be a solid aerosol generating substrate. Alternatively, the aerosol generating substrate can include solid and liquid components. The aerosol generating substrate can include tobacco material and / or non-tobacco material; wherein the tobacco material contains volatile tobacco flavor compounds that are released from the substrate upon heating.

[0046] In some embodiments, referring to Figure 1 and Figure 2 the seal 3 can include a seal ring 31; the seal ring 31 is fitted on the outer periphery or inner wall of the stepped portion 21. Alternatively, the seal ring 31 is fitted on the outer periphery or inner wall of the main body portion 1 near the stepped portion 21. For example, when at least a portion of the stepped portion 21 is inserted into the end portion of the main body portion 1 near the mouthpiece portion 2 when the heating cavity 11 is closed, the seal 3 can be fitted on the outer periphery of the stepped portion 21, or provided on the inner wall of the main body portion 1 near the mouthpiece portion 2, so that the seal 3 can seal the fitting gap between the stepped portion 21 and the main body portion 1, and prevent the aerosol from leaking. For example, when at least a portion of the stepped portion 21 is fitted on the outer periphery of the main body portion 1 near the mouthpiece portion 2 when the heating cavity 11 is closed, the seal 3 can be provided on the inner wall of the stepped portion 21, or fitted on the outer periphery of the main body portion 1 near the mouthpiece portion 2, so that the seal 3 can seal the fitting gap between the stepped portion 21 and the main body portion 1, and prevent the aerosol from leaking.

[0047] In some embodiments, referring to Figure 1 and Figure 2A sealing groove 22 may be provided on the stepped portion 21, and at least a portion of the sealing ring 31 may be disposed within the sealing groove 22. For example, when the heating chamber 11 is closed, and at least a portion of the stepped portion 21 is inserted into the end of the main body portion 1 near the nozzle portion 2, the sealing groove 22 may be formed on the outer periphery of the stepped portion 21, and at least a portion of the sealing member 3 may be fitted within the sealing groove 22 formed on the outer periphery of the stepped portion 21. Alternatively, when the heating chamber 11 is closed, and at least a portion of the stepped portion 21 is fitted over the outer periphery of the main body portion 1 near the nozzle portion 2, the sealing groove 22 may be formed on the inner wall of the stepped portion 21, and at least a portion of the sealing member 3 may be disposed within the sealing groove 22 formed on the inner wall of the stepped portion 21.

[0048] In other embodiments, a sealing groove 22 may be formed on the main body portion 1, and at least a portion of the sealing ring 31 may be disposed within the sealing groove 22. For example, when the heating chamber 11 is closed, and at least a portion of the stepped portion 21 is inserted into the end of the main body portion 1 near the nozzle portion 2, the sealing groove 22 may be formed on the inner wall of the main body portion 1, and at least a portion of the sealing member 3 may be disposed within the sealing groove 22 formed on the inner wall of the main body portion 1. Alternatively, when the heating chamber 11 is closed, and at least a portion of the stepped portion 21 is fitted over the outer periphery of the main body portion 1 near the nozzle portion 2, the sealing groove 22 may be formed on the outer periphery of the main body portion 1, and at least a portion of the sealing member 3 may be disposed within the sealing groove 22 formed on the outer periphery of the main body portion 1.

[0049] In some embodiments, please refer to Figure 3 and Figure 4 The nozzle part 2 is provided with an aerosol channel 23 inside. When the heating chamber 11 is closed, the aerosol channel 23 is connected to the heating chamber 11. The sealing element 3 may also include a sealing seat 32. The sealing seat 32 may be arranged around the opening of the heating chamber 11. The sealing seat 32 is used to seal the gap between the aerosol channel 23 and the heating chamber 11.

[0050] In some embodiments, please refer to Figure 3 and Figure 4, the sealing seat 32 can be sleeved on the inner wall or the outer periphery of the aerosol channel 23 near the heating cavity 11, or the sealing seat 32 can be sleeved on the inner wall or the outer periphery of the heating cavity 11 near the aerosol channel 23. For example, when the heating cavity 11 is closed, at least a part of the aerosol channel 23 is inserted into the end of the heating cavity 11 near the mouthpiece part 2, the sealing seat 32 can be sleeved on the outer periphery of the aerosol channel 23, or arranged on the inner wall of the heating cavity 11 near the mouthpiece part 2, so that the sealing seat 32 can seal the fitting gap between the aerosol channel 23 and the heating cavity 11, preventing the aerosol from leaking. For example, when at least a part of the aerosol channel 23 is sleeved on the outer periphery of the opening of the heating cavity 11, the sealing seat 32 can be arranged on the inner wall of the aerosol channel 23, or sleeved on the outer periphery of the opening of the heating cavity 11, so that the sealing seat 32 can seal the fitting gap between the aerosol channel 23 and the heating cavity 11, preventing the aerosol from leaking.

[0051] In some embodiments, when the heating cavity 11 is closed, the aerosol channel 23 and the heating cavity 11 can be arranged relatively and not in contact, and the aerosol channel 23 and the heating cavity 11 can be communicated and sealed by the sealing seat 32. For example, one end of the sealing seat 32 can be arranged on the inner wall or the outer periphery of the aerosol channel 23, and the other end can be inserted into the heating cavity 11 or sleeved on the outer periphery of the opening of the heating cavity 11, so that the aerosol channel 23 and the heating cavity 11 are kept in communication and sealing. Alternatively, one end of the sealing seat 32 can be arranged on the inner wall or the outer periphery of the aerosol channel 23, and the other end can abut against the end of the heating cavity 11 near the mouthpiece part 2. For example, one end of the sealing seat 32 can be arranged on the inner wall or the outer periphery of the opening of the heating cavity 11, and the other end can be inserted into the aerosol channel 23 or sleeved on the outer periphery of the aerosol channel 23, so that the aerosol channel 23 and the heating cavity 11 are kept in communication and sealing. Alternatively, one end of the sealing seat 32 can be arranged on the inner wall or the outer periphery of the opening of the heating cavity 11, and the other end can abut against the aerosol channel 23.

[0052] In some embodiments, referring to Figure 3 and Figure 4 , a limiting groove 12 can be arranged on the end of the heating cavity 11 near the aerosol channel 23 or on the aerosol channel 23, and at least a part of the sealing seat 32 can be located in the limiting groove 12. For example, the limiting groove 12 can be arranged on the inner wall or the outer periphery of the heating cavity 11 near the mouthpiece part 2, or the limiting groove 12 can be arranged on the inner wall or the outer periphery of the aerosol channel 23 near the main body part 1.

[0053] In some embodiments, referring to Figure 3 , Figure 4 and Figure 5The sealing seat 32 can include a seat body 321 and an extension 322. The seat body 321 can be arranged around the outer periphery of one end of the extension 322, and at least part of the seat body 321 is located in the limiting groove 12. The extension 322 is used to seal the gap between the aerosol channel 23 and the heating cavity 11. For example, when the limiting groove 12 is arranged on the outer periphery of the end of the heating cavity 11 close to the mouthpiece portion 2, the seat body 321 of the sealing seat 32 is installed in the limiting groove 12. When the heating cavity 11 is closed, the extension 322 of the sealing seat 32 can be at least partially inserted into the aerosol channel 23, and the outer wall of the extension 322 abuts against the inner wall of the aerosol channel 23, thereby achieving the sealing between the aerosol channel 23 and the heating cavity 11. Alternatively, the extension 322 of the sealing seat 32 can be sleeved on the outer periphery of the aerosol channel 23, and the inner wall of the extension 322 abuts against the outer wall of the aerosol channel 23, thereby achieving the sealing between the aerosol channel 23 and the heating cavity 11. Alternatively, the extension 322 of the sealing seat 32 can abut against the end of the aerosol channel 23 close to the heating cavity 11, thereby achieving the sealing between the aerosol channel 23 and the heating cavity 11.

[0054] In some other embodiments, the limiting groove 12 can be arranged on the inner wall or the outer periphery of the aerosol channel 23, and the seat body 321 of the sealing seat 32 can be installed in the limiting groove 12. The extension 322 of the sealing seat 32 can abut against the heating cavity 11 to achieve the sealing. For example, when the heating cavity 11 is closed, the extension 322 of the sealing seat 32 can be at least partially inserted into the heating cavity 11, and the outer wall of the extension 322 abuts against the inner wall of the heating cavity 11, thereby achieving the sealing between the aerosol channel 23 and the heating cavity 11. Alternatively, the extension 322 of the sealing seat 32 can be sleeved on the outer periphery of the opening of the heating cavity 11, and the inner wall of the extension 322 abuts against the outer wall of the opening of the heating cavity 11, thereby achieving the sealing between the aerosol channel 23 and the heating cavity 11. Alternatively, the extension 322 of the sealing seat 32 can abut against the end of the heating cavity 11 close to the mouthpiece portion 2, thereby achieving the sealing between the aerosol channel 23 and the heating cavity 11.

[0055] In some embodiments, please refer to Figure 3 、 Figure 6 、 Figure 7 and Figure 8The first connecting member 13 can be arranged on the main body portion 1, and the second connecting member 24 can be arranged on the mouthpiece portion 2 corresponding to the first connecting member 13. The first connecting member 13 is configured to be matched with or separated from the second connecting member 24 under external actuation. The first connecting member 13 can be arranged on the stepped portion 21 of the mouthpiece portion 2, and the first connecting member 13 can be arranged on the end of the main body portion 1 close to the mouthpiece portion 2. The number of the first connecting member 13 and the second connecting member 24 can be one or corresponding multiple. Exemplarily, the mouthpiece portion 2 and the main body portion 1 can be connected in a hinged manner. The first connecting member 13 is arranged on the mouthpiece portion 2, and the second connecting member 24 is arranged on the main body portion 1. Thus, the opening or closing of the mouthpiece relative to the main body portion 1 can be realized by matching or separating the first connecting member 13 and the second connecting member 24, so as to realize the opening or closing of the heating cavity 11, thereby facilitating the replacement of the aerosol generating article or the cleaning of the heating cavity 11.

[0056] In some embodiments, referring to Figure 6 The first connecting member 13 can include one of a buckle 241 and a clamping groove 131, and the second connecting member 24 can include the other of the buckle 241 and the clamping groove 131. Exemplarily, the first connecting member 13 can be the buckle 241 or the clamping groove 131, and the second connecting member 24 can be arranged as the buckle 241 or the clamping groove 131 corresponding to the buckle 241 or the clamping groove 131. The buckle 241 and the clamping groove 131 are matched when the heating cavity 11 is closed, and can be separated when the heating cavity 11 is opened. The buckle 241 can be arranged on the stepped portion 21, and the buckle 241 can be arranged on the other side corresponding to the hinged portion of the mouthpiece portion 2 and the main body portion 1, thereby facilitating the closing and opening of the mouthpiece portion 2 and the main body portion 1. The clamping groove 131 can be arranged on the inner wall of the end of the main body portion 1 close to the mouthpiece portion 2. The number of the buckle 241 and the clamping groove 131 can be one or multiple.

[0057] In some embodiments, referring to Figure 7 and Figure 8The first connecting member 13 and the second connecting member 24 can each comprise a magnetic member, and the mouthpiece portion 2 and the main body portion 1 are attracted to each other by the magnetic members. For example, the first connecting member 13 can be a first magnetic member 132, and the second connecting member 24 can be a second magnetic member 242 corresponding to the first magnetic member 132. The first magnetic member 132 and the second magnetic member 242 can each be a magnet, and the opposite sides of the first magnetic member 132 and the second magnetic member 242 can have opposite magnetic properties. The first magnetic member 132 and the second magnetic member 242 are attracted to each other when the heating cavity 11 is closed, and can be separated when the heating cavity 11 is opened. The first magnetic member 132 can be disposed between the outer wall of the aerosol channel 23 and the inner wall of the stepped portion 21, for example, by interference fit or by adhesion. The main body portion 1 can be provided with a support around the heating cavity 11, and the second magnetic member 242 can be disposed on the support, for example, by interference fit or by adhesion. The number of the first magnetic member 132 and the second magnetic member 242 can be one or more. When the number of the second magnetic member 242 is more than one, the second magnetic member 242 can be disposed around the outer periphery of the heating cavity 11, and the first magnetic member 132 can be disposed around the outer periphery of the aerosol channel 23, with each first magnetic member 132 corresponding to one second magnetic member 242.

[0058] In some embodiments, referring to Figure 9The aerosol generating system 1000 includes an aerosol generating device 100 and an aerosol generating article 200. The aerosol generating device 100 includes a main body 1 and a mouthpiece 2 movably coupled to the main body 1. The main body 1 is provided with a heating cavity 11, and the mouthpiece 2 is configured to open or close the heating cavity 11 upon external actuation. The heating cavity 11 is configured to receive at least a portion of the aerosol generating article 200 and heat the aerosol generating article 200 to generate an aerosol. The aerosol generating article 200 generally includes an aerosol generating substrate section and a mouthpiece section, and the aerosol generating substrate section can be a tobacco section. In the present embodiment, the aerosol generating article 200 can include only the tobacco section without the mouthpiece section, so that the aerosol generating article 200 can be directly placed in the heating cavity 11 of the main body 1 to be heated, and the aerosol generated by heating the aerosol generating article 200 can be inhaled through the mouthpiece 2. The mouthpiece 2 is provided with a stepped portion 21, and the end of the main body 1 close to the mouthpiece 2 is configured to engage with the stepped portion 21 when the heating cavity 11 is closed. The aerosol generating device 100 further includes a seal 3 configured to seal the gap between the main body 1 and the stepped portion 21. A user can inhale the heated aerosol through the mouthpiece 2. The aerosol generating article 200 includes an aerosol generating substrate. The aerosol generating article 200 can be placed in or removed from the heating cavity 11 by moving the mouthpiece 2 relative to the main body 1 when the heating cavity 11 is open, and the aerosol generated by heating the aerosol generating article 200 in the heating cavity 11 can be inhaled through the mouthpiece 2 when the heating cavity 11 is closed. Thus, the aerosol generating article 200 can include only the aerosol generating substrate when prepared, and can not need to include a suction portion, so that the aerosol generating article 200 can be simplified and the cost can be reduced by using the aerosol generating device 100.

[0059] It should be noted that the preferred embodiments of the present application are given in the specification and drawings of the present application, but are not limited to the embodiments described in the specification, and further, those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications shall fall within the scope of protection of the claims of the present application.

Claims

1. An aerosol-generating device, characterized by, The aerosol generating device comprises: a main body portion provided with a heating cavity for heating an aerosol generating article to generate an aerosol; a mouthpiece portion movably connected to the main body portion for a user to draw, the mouthpiece portion being configured to open or close the heating cavity under external actuation; wherein the mouthpiece portion is in communication with the heating cavity when the heating cavity is closed; the mouthpiece portion is provided with a stepped portion, and an end of the main body portion close to the mouthpiece portion is matched with the stepped portion when the heating cavity is closed; a sealing member for sealing a matching gap between the main body portion and the stepped portion.

2. The aerosol generating device according to claim 1, wherein the sealing member comprises a sealing ring; the sealing ring is sleeved on the outer periphery or inner wall of the stepped portion; or the sealing ring is sleeved on the outer periphery or inner wall of the main body portion close to the stepped portion. a sealing groove is formed on the stepped portion or the main body portion, and at least part of the sealing ring is arranged in the sealing groove.

3. The aerosol-generating device of claim 2, wherein, an aerosol passage is arranged in the interior of the mouthpiece portion, and the aerosol passage is in communication with the heating cavity when the heating cavity is closed; 4. The aerosol-generating device of claim 1, wherein, the sealing member further comprises a sealing seat arranged around the opening of the heating cavity, and the sealing seat is used for sealing a gap between the aerosol passage and the heating cavity.

5. The aerosol generating device according to claim 4, wherein the sealing seat is sleeved on the inner wall or outer periphery of the aerosol passage close to the heating cavity; or the sealing seat is sleeved on the inner wall or outer periphery of the heating cavity close to the aerosol passage. a limiting groove is arranged on the end of the heating cavity close to the aerosol passage or the aerosol passage, and at least part of the sealing seat is located in the limiting groove. the sealing seat comprises a seat body and an extension, the seat body is arranged around the outer periphery of one end of the extension, at least part of the seat body is located in the limiting groove, and the extension is used for sealing a gap between the aerosol passage and the heating cavity.

6. The aerosol-generating device of claim 5, wherein, a first connecting member is arranged on the main body portion, a second connecting member corresponding to the first connecting member is arranged on the mouthpiece portion, and the first connecting member is configured to cooperate or separate from the second connecting member under external actuation.

7. The aerosol-generating device of claim 6, wherein, the first connecting member comprises one of a buckle and a clamping groove, and the second connecting member comprises the other of the buckle and the clamping groove.

8. The aerosol-generating device of claim 1, wherein, the first connecting member and the second connecting member each comprise a magnetic attraction member, and the mouthpiece portion and the main body portion are attracted by the magnetic attraction members.

9. The aerosol-generating device of claim 8, wherein, The aerosol generating device comprises: 10.The aerosol-generating device of claim 8, wherein, a main body portion provided with a heating cavity for heating an aerosol generating article to generate an aerosol; 11. An aerosol-generating system comprising: a mouthpiece portion movably connected to the main body portion for a user to draw, the mouthpiece portion being configured to open or close the heating cavity under external actuation; the heating cavity is used for accommodating at least part of the aerosol generating article and heating the aerosol generating article to generate an aerosol; ​ The mouthpiece portion is provided with a step portion, and an end of the main body portion close to the mouthpiece portion cooperates with the step portion when the heating cavity is closed; The aerosol-generating device further comprises a seal for sealing a cooperation gap between the main body portion and the step portion; A user sucks the heated generated aerosol through the mouthpiece portion; The aerosol-generating article comprises an aerosol-generating substrate.

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