Aerosol generating device with built-in volume adjusting bin and aerosol generating system

Abstract

The utility model belongs to the technical field of aerosol generating devices, and particularly relates to an aerosol generating device with a built-in volume adjusting bin and an aerosol generating system. The aerosol generating device comprises an aerosol generating product accommodating bin (2), a sealing device (3) and a volume adjusting bin; the aerosol generating product accommodating bin is used for accommodating an aerosol generating product (1); the bottom of the aerosol generating product accommodating bin (2) is in airflow communication with the volume adjusting bin (4); the volume adjusting bin (4) comprises a volume adjusting piece, and the volume adjusting piece is configured to adjust the volume of the volume adjusting bin (4). On the premise that the structure of the cigarette and the sealing performance between the cigarette and the smoking set are not changed, the volume-adjustable cavity, namely the volume adjusting bin, is arranged at the front end of the cigarette on the smoking set, so that the airflow distribution proportion is adjusted, the aerosol release amount is adjusted, and the smoking requirement of a consumer is met.

Description

Technical Field

[0001] The utility model belongs to the technical field of aerosol generating devices, and in particular relates to an aerosol generating device with a built-in volume regulating chamber and an aerosol generating system. Background Art

[0002] In recent years, major tobacco companies around the world have continued to make efforts in the field of heated tobacco products. As the most developed and highest-selling type, electrically heated cigarettes have attracted much attention. Electrically heated cigarettes are usually heated by heating devices to provide heat sources, and the tobacco materials are baked at low temperatures to achieve the release of smoke.

[0003] Aerosol is a consumer product of electrically heated cigarettes, usually formed by smoke-generating agents, moisture, nicotine and other substances through atomization, condensation, and nucleation, and released under the action of airflow for consumers to inhale. Due to the existence state of smoke-generating agents, moisture, nicotine and other substances in tobacco materials, and the different distribution of heat in tobacco materials under different numbers of puffs, there are significant differences in the amount of aerosol released between different numbers of puffs under the same airflow. During the entire puffing process, the amount of aerosol released is often less at the beginning and end, and more in the middle. This affects the uniformity of aerosol release and also affects the puffing experience.

[0004] In order to solve the above problems, this application is proposed. Utility Model Content

[0005] The present application found that the change of airflow flow pattern will significantly affect the release amount of aerosol, and changing the airflow distribution ratio in the single-puff capacity can significantly change the airflow flow pattern. The airflow distribution ratio of electrically heated cigarette products depends on the airflow channel formed by the cigarette and the heating device. However, the airflow channel in existing products cannot be adjusted, and its airflow distribution ratio is usually a fixed design value.

[0006] Therefore, the present application provides a method for adjusting the airflow distribution ratio by adjusting the airflow channel through the design of an aerosol generating device with a built-in volume adjustment chamber, thereby regulating the amount of aerosol released during the inhalation process and improving the stability of smoke release.

[0007] In a first aspect, the present application provides an aerosol generating device with a built-in volume adjustment chamber, the aerosol generating device comprising:

[0008] an aerosol generating product containing chamber 2, a sealing device 3, and a volume regulating chamber 4;

[0009] Wherein, the aerosol generating product containing chamber 2 is used to contain the aerosol generating product 1;

[0010] The sealing device 3 is disposed in the aerosol generating product containing chamber 2 and is configured to seal the gap between the outer periphery of the aerosol generating product 1 and the inner wall of the aerosol generating product containing chamber 2;

[0011] The bottom of the aerosol generating product containing chamber 2 is in airflow communication with the volume regulating chamber 4;

[0012] The volume adjustment chamber 4 includes a volume adjustment member, and the volume adjustment member is configured to adjust the volume of the volume adjustment chamber 4 .

[0013] Preferably, the volume adjusting member comprises a piston 5, and the aerosol generating device further comprises a piston adjusting button 6;

[0014] The piston adjustment button 6 is configured to adjust the position of the piston 5 to adjust the volume of the volume adjustment chamber 4 .

[0015] Of course, the piston 5 and the piston adjustment knob 6 may not be used, and the housing 9 may be directly used as the volume adjustment member, and the housing 9 is configured to be slidably connected to the volume adjustment chamber 4. The baffle 9-1 provided on the housing 9 serves as a sealing wall of the volume adjustment chamber 4.

[0016] Preferably, the aerosol generating device further comprises a connecting device 7 , wherein the connecting device 7 connects the piston adjusting button 6 and the piston 5 .

[0017] Preferably, the inner diameters of the volume regulating chamber 4 and the aerosol generating product containing chamber 2 are the same or different.

[0018] Preferably, the volume adjusting member can provide a sealing wall for sealing the volume adjusting chamber 4 .

[0019] Preferably, the volume adjusting member can provide a bottom sealing wall for sealing the volume adjusting chamber 4 .

[0020] Preferably, the volume regulating chamber 4 is in airflow communication only with the aerosol generating product containing chamber 2 .

[0021] The second aspect of the present application provides an aerosol generating system with a built-in cavity and adjustable volume, the aerosol generating system comprising: an aerosol generating article 1 and an aerosol generating device as described in any one of the first aspects;

[0022] The aerosol generating product 1 comprises: an aerosol generating section 1-3 and a hollow section 1-2 arranged in sequence from upstream to downstream, and at least one air inlet hole 1-1 is opened on the side wall of the hollow section 1-2;

[0023] The aerosol generating section 1-3 of the aerosol generating product 1 is contained in the aerosol generating product containing chamber 2 and the air inlet 1-1 is axially located downstream of the sealing device 3 so that the air inlet 1-1 can receive external air.

[0024] The third aspect of the present application provides a method for adjusting the aerosol release amount of an aerosol generating product, the method using the aerosol generating system of the second aspect, the method comprising:

[0025] When the aerosol release amount needs to be increased, the volume of the volume adjustment chamber 4 is reduced using the volume adjustment member;

[0026] When the aerosol release amount needs to be reduced, the volume of the volume adjustment chamber 4 is increased using a volume adjustment member.

[0027] In this application, the direction of aerosol flow in the aerosol generating system is recorded as from upstream to downstream.

[0028] Compared with the prior art, this application has the following beneficial effects:

[0029] 1. In order to solve the problem that the amount of aerosol released during the smoking process is difficult to adjust, the utility model, without changing the structure of the cigarette and the sealing between the cigarette and the smoking device, adjusts the airflow distribution ratio by setting a cavity with adjustable volume, namely, a volume adjustment chamber 4, at the front end of the cigarette on the smoking device, thereby adjusting the aerosol release amount to adapt to the smoking needs of consumers.

[0030] 2. The present application also unexpectedly discovered that the volume of the volume adjustment chamber 4 is negatively correlated with the aerosol release amount. During the puffing process, the cigarette ventilation rate is reduced by reducing the volume of the volume adjustment chamber 4, thereby reducing the amount of air entering the air inlet 1-1 so that more aerosol is released from the aerosol generation section. If the release amount needs to be reduced, the volume of the volume adjustment chamber 4 can be increased, the cigarette ventilation rate can be increased, and the amount of air entering the air inlet 1-1 can be increased, thereby reducing the aerosol release amount. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 Schematic diagram of the structure of the aerosol generating system of Example 1.

[0032] Figure 2 This is a state diagram of the volume adjustment chamber 4 of the aerosol generating system in Example 1 before and after volume adjustment.

[0033] Figure 3 This is a state diagram of the volume adjustment chamber 4 of the aerosol generating system of Example 2 before volume adjustment.

[0034] Figure 4 This is a state diagram of the volume adjustment chamber 4 of the aerosol generating system of Example 2 after volume adjustment.

[0035] Figure 5 It is the aerosol capture amount when the volume adjustment chamber 4 of the aerosol generating system in Example 2 has different volumes.

[0036] 1. aerosol generating product, 1-1. air inlet, 1-2. hollow section, 1-3. aerosol generating section, 2. aerosol generating product containing chamber, 3. sealing device, 4. cavity, 5. piston, 6. piston adjusting knob, 7. connecting device, 8. outer shell, 8-1. baffle, 9. first position, 10. second position, 11. circumferential heating element, 12. electromagnetic induction heating needle. DETAILED DESCRIPTION

[0037] The present application is further described in detail below in conjunction with embodiments.

[0038] Those skilled in the art will appreciate that the following examples are only used to illustrate the present application and should not be considered to limit the scope of the present application. If no specific techniques or conditions are specified in the examples, the techniques or conditions described in the literature in the art or the product specifications are used. If the manufacturer of the materials or equipment used is not specified, they are all conventional products that can be purchased.

[0039] Those skilled in the art will appreciate that, unless expressly stated otherwise, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the term "comprising" used in the specification of the present application refers to the presence of the features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof. It should be understood that when we refer to an element as being "connected" to another element, it may be directly connected to the other element, or there may be intermediate elements. In addition, the "connection" used herein may include wireless connections.

[0040] In the description of this application, unless otherwise specified, "plurality" means two or more. The terms "inside", "upper", "lower", etc. indicate positions or state relationships based on the positions or state relationships shown in the drawings, which are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operate in a specific position, and therefore cannot be understood as limiting this application.

[0041] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "provided with" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application are understood according to specific circumstances.

[0042] It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein, including technical and scientific terms, have the same meaning as those generally understood by those skilled in the art to which this application belongs. It should also be understood that terms such as those defined in common dictionaries should be understood to have meanings consistent with the meanings in the context of the prior art, and will not be interpreted with idealized or overly formal meanings unless defined as herein.

[0043] The "range" disclosed in the present application is defined in the form of a lower limit and an upper limit, and a given range is defined by selecting a lower limit and an upper limit, and the selected lower limit and upper limit define the boundaries of the particular range. The range defined in this way can be inclusive or exclusive of the end values, and can be arbitrarily combined, that is, any lower limit can be combined with any upper limit to form a range. For example, if a range of 60 to 120 and 80 to 110 is listed for a particular parameter, it is understood that a range of 60 to 110 and 80 to 120 is also expected. In addition, if the minimum range values ​​1 and 2 are listed, and if the maximum range values ​​3, 4 and 5 are listed, the following ranges can all be expected: 1 to 3, 1 to 4, 1 to 5, 2 to 3, 2 to 4 and 2 to 5. In the present application, unless otherwise specified, the numerical range "a to b" represents an abbreviation of any real number combination between a and b, where a and b are both real numbers. For example, the numerical range "0-5" means that all real numbers between "0-5" are listed in this document, and "0-5" is just an abbreviation of these numerical combinations. In addition, when a parameter is expressed as an integer ≥ 2, it is equivalent to disclosing that the parameter is, for example, an integer of 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, etc.

[0044] If not otherwise specified, all embodiments and optional embodiments of the present application can be combined with each other to form a new technical solution. If not otherwise specified, all technical features and optional technical features of the present application can be combined with each other to form a new technical solution. If not otherwise specified, all steps of the present application can be performed sequentially or randomly, preferably sequentially. For example, the method includes steps (a) and (b), indicating that the method may include steps (a) and (b) performed sequentially, or may include steps (b) and (a) performed sequentially. For example, the method may further include step (c), indicating that step (c) may be added to the method in any order, for example, the method may include steps (a), (b) and (c), or may include steps (a), (c) and (b), or may include steps (c), (a) and (b), etc.

[0045] If there is no special explanation, the "include" and "comprising" mentioned in this application are open-ended or closed-ended. For example, the "include" and "comprising" may mean that other components not listed may also be included or only the listed components may be included or only the listed components may be included.

[0046] If not specifically stated, in this application, the term "or" is inclusive. For example, the phrase "A or B" means "A, B, or both A and B".

[0047] like Figure 1-4 , an aerosol generating system with a built-in cavity and adjustable volume, the aerosol generating system comprising: an aerosol generating product 1 and an aerosol generating device.

[0048] The aerosol generating product 1 comprises: an aerosol generating section 1-3 and a hollow section 1-2 arranged in sequence from upstream to downstream, and at least one air inlet hole 1-1 is opened on the side wall of the hollow section 1-2;

[0049] The aerosol generating section 1-3 of the aerosol generating product 1 is contained in the aerosol generating product containing chamber 2 and the air inlet 1-1 is axially located downstream of the sealing device 3 so that the air inlet 1-1 can receive external air.

[0050] Preferably, the aerosol generating article 1 further comprises: a filter segment located downstream of the hollow segment 1-2.

[0051] The hollow section 1-2 has an axial cavity therein. The hollow section 1-2 may be a hollow cylinder with holes punched in the side wall. The aerosol generating section 1-3 contains a substance that can generate aerosol when heated, such as tobacco, smoke generating agent, etc. The filter section may contain a porous substance or fiber tearing book, etc., for filtering the aerosol.

[0052] The aerosol generating device comprises: an aerosol generating product containing chamber 2, a sealing device 3, a volume adjusting chamber 4, a piston 5, and a piston adjusting button 6;

[0053] Wherein, the aerosol generating product containing chamber 2 is used to contain the aerosol generating product 1;

[0054] The sealing device 3 is disposed in the aerosol generating product containing chamber 2 and is configured to seal the gap between the outer periphery of the aerosol generating product 1 and the inner wall of the aerosol generating product containing chamber 2;

[0055] The bottom of the aerosol generating product containing chamber 2 is in airflow communication with the volume regulating chamber 4;

[0056] The volume adjustment chamber 4 comprises a volume adjustment member, and the volume adjustment member is configured to adjust the volume of the volume adjustment chamber 4. The volume adjustment chamber 4 is in airflow communication only with the aerosol generating product containing chamber 2.

[0057] The volume adjustment member may be a movable baffle, etc. The movable baffle can be moved back and forth manually or automatically to adjust the volume of the volume adjustment chamber 4.

[0058] In a preferred embodiment, the volume adjusting member can provide a sealing wall for sealing the volume adjusting chamber 4 .

[0059] In a more preferred embodiment, the volume adjusting member can provide a bottom sealing wall for sealing the volume adjusting chamber 4 .

[0060] The volume adjusting member may be provided with a sliding seal. The sliding seal may be a sealing ring or a sealing sleeve, etc. For example, the sealing sleeve may be coated on the volume adjusting member to achieve sealing of the volume adjusting chamber 4 while the volume adjusting member slides.

[0061] The sliding seal can be made of silicone, latex or other materials that can achieve sliding sealing.

[0062] In a preferred embodiment, the volume adjusting member includes a piston 5, and the aerosol generating device further includes a piston adjusting button 6;

[0063] The piston adjustment button 6 is configured to adjust the position of the piston 5 to adjust the volume of the volume adjustment chamber 4 .

[0064] In a preferred embodiment, the aerosol generating device further comprises a connecting device 7 , and the connecting device 7 connects the piston adjusting button 6 and the piston 5 .

[0065] In a preferred embodiment, the inner diameters of the volume regulating chamber 4 and the aerosol generating product containing chamber 2 are the same or different.

[0066] Specifically, the aerosol generating section 1 - 3 of the aerosol generating article 1 and the aerosol generating article containing chamber 2 are sealed by the sealing device 3 .

[0067] The dimensions of the aerosol-generating article receiving chamber 2 and the sealing device 3 are matched with the aerosol-generating article 1 .

[0068] The sealing device 3 can be a silicone sealing ring or other materials that can achieve a sealing effect.

[0069] The position of the sealing device 3 should ensure that the air inlet 1-1 of the aerosol generating article 1 is not sealed. For example, the axial position of the sealing device 3 corresponds to the hollow section 1-2 downstream of the aerosol generating section 1-3. And the axial position of the air inlet 1-1 is located downstream of the sealing device 3 so that the air inlet 1-1 can receive external air.

[0070] The side wall of the volume adjustment chamber 4 can be made of plastic, metal or other devices that can be processed into a hollow cylinder and can be sealed.

[0071] The volume of the volume adjustment chamber 4 can be adjusted by pushing the piston adjustment button 6 to drive the piston 5 to move forward and backward through the connecting device 7. Its volume can be any value between 0-55mL, and its maximum volume can also be determined according to actual needs.

[0072] When the volume of the volume adjustment chamber 4 changes, the airflow distribution ratio of the single-puff puff capacity changes. When the volume of the volume adjustment chamber 4 increases, the ventilation increases, the proportion of the single-puff puff capacity from the air inlet 1-1 increases, the proportion from the volume adjustment chamber 4 decreases, and less aerosol is released during the puffing process; conversely, when the volume of the volume adjustment chamber 4 decreases, the ventilation decreases, the proportion of the single-puff puff capacity from the air inlet 1-1 decreases, the proportion from the volume adjustment chamber 4 increases, and the aerosol release increases.

[0073] The aerosol-generating article containing chamber 2 is cylindrical.

[0074] like Figure 1 The volume adjustment chamber 4 and the piston 5 may be cylindrical and the cross-sectional diameter may be consistent with the aerosol generating product containing chamber 2. At this time, the side wall of the volume adjustment chamber 4 may be considered as an extension of the side wall of the aerosol generating product containing chamber 2.

[0075] The shapes of the volume adjustment chamber 4 and the piston 5 may also be non-cylindrical, as long as the volume adjustment chamber 4 is connected to the aerosol generating product containing chamber 5 and is sealed from other environments.

[0076] The piston 5 can be made of silicone, latex or other materials that can achieve sliding sealing.

[0077] like Figure 1 The heating element may be a circumferential heating element 11 arranged on the inner wall of the aerosol generating product containing cavity 2 to achieve circumferential heating of the aerosol generating product 1 .

[0078] The circumferential heating element can be a heating tube, a heating mesh or a heating coil, etc.

[0079] The heating element may also be a central heating element disposed inside the aerosol-generating article receiving cavity 2. The central heating element is used to be inserted into the aerosol-generating section 1-3 of the aerosol-generating article 1 to perform central heating on the aerosol-generating article 1.

[0080] The heating element is a resistance heating type heating element or an electromagnetic induction heating type heating element.

[0081] like Figure 1 When the heating element is an electromagnetic induction heating element, the heating element may also be an electromagnetic induction heating needle 12 independently arranged in the aerosol generating section 1-3 of the aerosol generating product 1, rather than being arranged in the aerosol generating device.

[0082] Figure 1 In the embodiment, the circumferential heating element 11 and the electromagnetic induction heating needle 12 can be provided at the same time or used one by one.

[0083] A method for adjusting the aerosol release amount of an aerosol generating product, the method using the above-mentioned aerosol generating system, the method comprising:

[0084] When the aerosol release amount needs to be increased, the volume of the volume adjustment chamber 4 is reduced using the volume adjustment member;

[0085] When the aerosol release amount needs to be reduced, the volume of the volume adjustment chamber 4 is increased using the volume adjustment member.

[0086] The present application is further described in detail below in conjunction with embodiments.

[0087] Example 1

[0088] Use as Figure 1-2 The aerosol generating system shown in the figure. The bottom of the aerosol generating device is a power supply and a control system. The volume adjustment chamber 4 and the piston 5 are cylindrical and have the same cross-sectional diameter as the aerosol generating product containing chamber 2. The piston 5 exists as the bottom sealing wall of the volume adjustment chamber 4. The piston adjustment button 6 is configured to adjust the front and rear position of the piston 5 to adjust the volume of the volume adjustment chamber 4.

[0089] In this embodiment, the heating element is a circumferential heating element 11 .

[0090] During use, the aerosol generating product 1 is inserted into the aerosol generating product containing chamber 2 for inhalation.

[0091] The sealing device 3 is a silicone ring, which is attached to the inner wall of the aerosol generating product containing chamber 2. The sealing device 3 realizes the sealing between the aerosol generating product 1 and the aerosol generating product containing chamber 2.

[0092] When suction starts, the volume adjustment chamber 4 is opened by default.

[0093] During the inhalation process, the amount of aerosol released is small, resulting in too little smoke, which affects the inhalation experience. At this time, the consumer pushes the piston adjustment button 6 to reduce the volume of the volume adjustment chamber 4. Figure 2 As shown, when the piston 5 is moved from the first position 9 to the second position 10, the air intake ratio of the air inlet hole 1-1 is reduced, the air outlet ratio of the volume adjustment chamber 4 is increased, the aerosol release amount is increased, the smoke amount is increased, and the smoking experience is improved.

[0094] Example 2

[0095] Use as Figure 3-4 The aerosol generating system shown. The shell 9 is arranged on the periphery of the volume adjustment chamber 4 and the volume adjustment chamber 4 and the shell 9 are slidably connected. Specifically, the outer surface of the side wall of the volume adjustment chamber 4 is provided with a sliding track, and the inner surface of the side wall of the shell 9 is provided with a sliding block. The sliding block is configured to slide back and forth in the sliding track to realize the sliding of the shell 9. A baffle 9-1 is provided on the side of the shell 9 that contacts the volume adjustment chamber 4. The baffle 9-1 passes through the side wall of the volume adjustment chamber 4 and exists as a sealing wall of the volume adjustment chamber 4, and the baffle 9-1 can move back and forth as the front of the shell 9 slides to change the volume of the volume adjustment chamber 4.

[0096] In this embodiment, the heating element may also be an electromagnetic induction heating needle 12 independently arranged in the aerosol generating section 1-3 of the aerosol generating product 1. A magnetic field generator is arranged in the aerosol generating device.

[0097] In this embodiment, the baffle 9-1 is made of rubber material to ensure that the baffle 9-1 can slide smoothly through the side wall of the volume adjustment chamber 4. Of course, in other embodiments, the baffle 9-1 can be other hard materials coated with a rubber layer.

[0098] Of course, in other embodiments, instead of using sliding rails and sliding blocks, other methods may be used, such as providing a rubber layer on the inner surface of the side wall of the housing 9 to achieve sliding connection by friction. The bottom of the aerosol generating device is composed of components such as a power supply and a control system.

[0099] During use, the aerosol generating article 1 is inserted into the receiving chamber 2 for inhalation.

[0100] The sealing device 3 is a silicone ring, and the sealing device 3 realizes the sealing between the aerosol generating product 1 and the containing cavity 2 .

[0101] When suction begins, the volume adjustment chamber 4 is in a partially open state by default.

[0102] During the inhalation process, a large amount of aerosol is released, resulting in excessive smoke, which affects the inhalation experience. At this time, the consumer pushes the shell 9 backward to increase the volume of the volume adjustment chamber 4, and finally adjusts the volume of the cavity 8 from 20mL to 55mL.

[0103] Continue to inhale, the air intake ratio of the air inlet 1-1 increases, and the aerosol release amount decreases significantly. Figure 5 , the amount of smoke is reduced and the smoking experience is improved.

Claims

1. An aerosol generating device with a built-in volume adjustment chamber, characterized in that: The aerosol generating device comprises: An aerosol generating product containing chamber (2), a sealing device (3), and a volume regulating chamber (4); Wherein, the aerosol generating product containing chamber (2) is used to contain the aerosol generating product (1); The sealing device (3) is arranged in the aerosol generating product containing chamber (2) and is configured to seal the gap between the outer periphery of the aerosol generating product (1) and the inner wall of the aerosol generating product containing chamber (2); The bottom of the aerosol generating product containing chamber (2) is in airflow communication with the volume regulating chamber (4); The volume adjustment chamber (4) comprises a volume adjustment member, and the volume adjustment member is configured to adjust the volume of the volume adjustment chamber (4).

2. The aerosol generating device with a built-in volume regulating chamber according to claim 1, characterized in that: The volume adjusting member comprises a piston (5), and the aerosol generating device further comprises a piston adjusting button (6); The piston adjustment knob (6) is configured to adjust the position of the piston (5) so as to adjust the volume of the volume adjustment chamber (4).

3. The aerosol generating device with a built-in volume regulating chamber according to claim 2, characterized in that: The aerosol generating device further comprises a connecting device (7), wherein the connecting device (7) connects the piston adjusting button (6) and the piston (5).

4. The aerosol generating device with a built-in volume regulating chamber according to claim 2, characterized in that: The inner diameters of the volume adjustment chamber (4) and the aerosol generating product containing chamber (2) are the same or different.

5. The aerosol generating device with a built-in volume regulating chamber according to claim 1, characterized in that: The volume adjustment member can provide a sealing wall for sealing the volume adjustment chamber (4).

6. The aerosol generating device with a built-in volume regulating chamber according to claim 5, characterized in that: The volume adjustment member can provide a bottom sealing wall for sealing the volume adjustment chamber (4).

7. The aerosol generating device with a built-in volume regulating chamber according to claim 1, characterized in that: The volume adjustment chamber (4) is in airflow communication only with the aerosol generating product containing chamber (2).

8. An aerosol generating system with a built-in cavity and adjustable volume, characterized in that: The aerosol generating system comprises: an aerosol generating article (1) and an aerosol generating device according to any one of claims 1 to 4; The aerosol generating article (1) comprises: an aerosol generating section (1-3) and a hollow section (1-2) arranged in sequence from upstream to downstream, and the side wall of the hollow section (1-2) is provided with at least one air inlet hole (1-1); The aerosol generating section (1-3) of the aerosol generating product (1) is contained in the aerosol generating product containing chamber (2) and the air inlet hole (1-1) is axially located downstream of the sealing device (3) so that the air inlet hole (1-1) can receive external air.

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