This application relates to the field of atomization technologies, and in particular, to an aerosol generating device.

An aerosol generating device is a device that generates aerosols by controlling and atomizing an aerosol generating substrate. The capacity of the existing aerosol generating device is limited and cannot meet different needs of users for aerosol flavors and single-inhalation volumes.

In view of this, an embodiment of this application aims to provide an aerosol generating device which can meet different needs of users for aerosol inhalation volumes and inhalation flavors and enhance the user experience.

An embodiment of this application provides an aerosol generating device, including:

• an atomization assembly including a plurality of atomization core components, where each atomization core component has a main storage cavity and an atomization cavity that are communicated with each other; the main storage cavity is configured to store an aerosol generating substrate; the atomization core components are spaced apart from each other in a first direction; the first direction is intersected with the axial direction of the aerosol generating device;
• at least one additional liquid cartridge located on one side of at least one atomization core component in the axial direction, wherein the additional liquid cartridge has an additional storage cavity communicated with at least one main storage cavity;
• a mouthpiece; and
• an air outlet channel, wherein the mouthpiece is communicated with at least one atomization cavity through the air outlet channel.

In some implementation solutions, a plurality of additional liquid cartridges are provided; the plurality of additional liquid cartridges are in one-to-one correspondence with the plurality of main storage cavities; the main storage cavities are configured to guide aerosol generating substrates in the additional storage cavities to the atomization cavities; the plurality of additional storage cavities are spaced apart from each other in the first direction; and/or,
the aerosol generating device is provided with an air inlet channel; at least any one of the atomization cavities is communicated with an external environment through the air inlet channel; the aerosol generating device comprises at least one sensor; and the at least one sensor is configured to detect flowing of an airflow inside the air inlet channel.

In some implementation solutions, the air outlet channel includes a plurality of sub airways that are not communicated with each other;
one ends of the plurality of sub airways are in one-to-one correspondence with the plurality of atomization cavities; and the other end of at least one sub airway is communicated with the mouthpiece.

In some implementation solutions, the mouthpiece, each additional liquid cartridge, and the atomization core components are sequentially mated in the axial direction.

In some implementation solutions, the aerosol generating device includes a switch element; the switch element is disposed between the mouthpiece and the atomization core components; the switch element has a communication hole; the communication hole defines at least a portion of the air outlet channel; the switch element is able to move relative to the mouthpiece and the atomization core components, for the mouthpiece to be communicated with at least one of the atomization cavities through the communication hole.

In some implementation solutions, the mouthpiece is provided with at least one through groove in the axial direction; the switch element includes a main body portion and a driving portion that are connected to each other; the driving portion is threaded in the through groove and exposed from the outer surface of the aerosol generating device; the main body portion is provided with the communication hole; the driving portion is able to drive the main body portion to rotate relative to the mouthpiece under the of an external force, for the communication hole to communicate the mouthpiece with at least one of the atomization cavities, or for the communication hole to be staggered from the mouthpiece;
and/or, a plurality of switch elements are provided; and the quantity of switch elements corresponds to the quantity of atomization cavities.

In some implementation solutions, each additional liquid cartridge includes at least one liquid guiding structure; the liquid guiding structure is arranged on the side of the additional liquid cartridge close to the atomization core components; the liquid guiding structure protrudes from the wall of the additional liquid cartridge; at least one notch is formed in the wall of the additional liquid cartridge; the notch is communicated with the air outlet channel; the aerosol generating device includes at least one liquid absorbing member; the at least one liquid absorbing member is exposed from the air outlet channel through the notch and seals each notch; and at least part of each liquid guiding structure is in contact with each liquid absorbing member to guide condensate inside the air outlet channel to the liquid absorbing member.

In some implementation solutions, each additional liquid cartridge includes a housing portion and a movable seal member; the housing portion defines the additional storage cavity; the movable seal member is arranged on the side of the housing portion facing the atomization core components; each atomization core component includes a communication member;

• when the additional liquid cartridge is separated from each atomization core component, the movable seal member disconnects a fluid path between the additional storage cavity and the main storage cavity; and
• when the additional liquid cartridge is mated with each atomization core component, the communication member drives the movable seal member to move relative to the housing portion to establish fluid communication between the additional storage cavity and the main storage cavity.

In some implementation solutions, one end of the movable seal member is a fixed end and the other end is a free end; the fixed end and the housing portion are connected to each other and do not have relative movement; the communication member is configured to drive the free end to rotate relative to a connection junction of the free end and the fixed end;
two movable seal members are provided; and the rotation directions of the free ends of the two movable seal members are opposite.

In some implementation solutions, each atomization core component includes an atomization core and a liquid storage member; the atomization core is arranged inside the atomization cavity; the liquid storage member is located inside the main storage cavity; the liquid storage member stores the aerosol generating substrate; the liquid storage volume of the liquid storage member is less than the liquid storage volume of the additional liquid cartridge;
and/or, the aerosol generating device includes a power supply assembly; each atomization core component includes an atomization core and a conductive element; the atomization core is arranged inside the atomization cavity; the atomization core component or the power supply assembly is formed with a mounting region that is not communicated with the atomization cavity; the power supply assembly includes a power supply element; the power supply element is arranged in the mounting region; one end of the conductive element is electrically connected to the atomization core; and at least part of the other end of the conductive element is arranged in the mounting region in a bent manner and is separably in electrical contact with the power supply element.

According to the aerosol generating device provided in the embodiments of this application, through the arrangement of the at least one additional liquid cartridge and the plurality of atomization core components, the aerosol generating device has sufficient aerosol generating substrates, can generate sufficient aerosols and reduce the possibility of dry heating during atomization, and has the high atomization balance. In addition, the mouthpiece is communicated with the at least one atomization cavity through the air outlet channel, to meet different needs of users for aerosol inhalation volumes and inhalation flavors and enhance the user experience.

• FIG. 1 is a schematic structural diagram of an aerosol generating device according to one embodiment of this application;
• FIG. 2 is a cross-sectional view of the aerosol generating device shown in FIG. 1;
• FIG. 3 is another cross-sectional view of the aerosol generating device shown in FIG. 1, where the dotted arrow represents the flowing direction of an airflow;
• FIG. 4 is an exploded view of the aerosol generating device shown in FIG. 1, where partial structures of a power supply assembly are omitted;
• FIG. 5 is an exploded diagram of mating between an additional liquid cartridge and an atomization core component shown in FIG. 1;
• FIG. 6 is a schematic structural diagram of an aerosol generating device according to another embodiment of this application;
• FIG. 7 is a cross-sectional view of the aerosol generating device shown in FIG. 6; and
• FIG. 8 is an exploded view of the aerosol generating device shown in FIG. 6, where partial structures of a power supply assembly are omitted.

Descriptions of reference numerals:

• 1: aerosol generating device; 1a: air outlet channel; 1b: sub airway; 1c: air inlet channel; 10: atomization core component; 10a: main storage cavity; 10b: atomization cavity; 10c: mounting region; 101: atomization core; 102: liquid storage member; 103: communication member; 104: conductive element; 20: additional liquid cartridge; 20a: additional storage cavity; 20b: notch; 201: housing portion; 202: movable seal member;
• 202a: fixed end; 202b: free end; 203: liquid guiding structure; 30: mouthpiece; 30a: through groove; 40: power supply assembly; 401: power supply member; 50: switch element; 50a: communication hole; 501: main body portion; 502: driving portion; and 60: liquid absorbing member.

In order to make the objectives, technical solutions, and advantages of the present invention clearer, the following is a further detailed explanation of the present disclosure in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only intended to explain the present invention and are not intended to limit the present invention.

Various specific technical features described in the specific embodiments can be combined in any suitable manner without contradiction. For example, different embodiments and technical solutions can be formed through combinations of different specific technical features. In order to avoid unnecessary repetition, various possible combinations of specific technical features in the present invention will not be explained separately.

In the following description, the related terms "first\ second\..." are merely used for distinguishing different objects, and do not indicate that the objects have same or associated parts. It should be understood that the related orientation descriptions "above", "below", "outside", and "inside" are all orientations in a normal use state. The orientations "left" and "right" indicate left and right directions shown in specific corresponding schematic diagrams, and may be left and right directions in a normal use state or not.

It should be noted that the terms "include", "comprise", or any other variations thereof are intended to cover a non-exclusive inclusion, so that a process, method, object, or apparatus including a series of elements not only includes those elements, but also includes other elements not specifically listed, or includes inherent elements of this process, method, object, or apparatus. Without more restrictions, the elements defined by the sentence "include a ..." or "comprise a ..." do not exclude existence of other identical elements in the process, the method, the article, or the device including the elements. "Plurality" means greater than or equal to two.

An embodiment of this application provides an aerosol generating device 1.

It should be noted that the specific type of the aerosol generating device 1 provided in the embodiments of this application is not limited. For example, the aerosol generating device 1 may be medical atomization equipment, an air humidifier, or other atomization devices such as an e-cigarette.

Referring to FIG. 1 to FIG. 8, the aerosol generating device 1 includes an atomization assembly, at least one additional liquid cartridge 20, a mouthpiece 30, and an air outlet channel 1a.

The atomization assembly includes a plurality of atomization core components 10. Each atomization core component 10 has a main storage cavity 10a and an atomization cavity 10b that are communicated with each other. The main storage cavity 10a is configured to store an aerosol generating substrate. The atomization core components 10 are spaced apart from each other in a first direction. The first direction is intersected with the axial direction of the aerosol generating device 1.

The at least one additional liquid cartridge 20 is located on one side of at least one atomization core component 10 in the axial direction. The additional liquid cartridge 20 has an additional storage cavity 20a communicated with at least one main storage cavity 10a.

The mouthpiece 30 is communicated with at least one atomization cavity 10b through the air outlet channel 1a.

"Plurality" refers to two, three, or more. For example, two atomization core components 10 are provided.

Being at least one may be one or more. For example, a plurality of additional liquid cartridges 20 are provided. The plurality of additional liquid cartridges 20 can be spaced apart from each other in the first direction. The additional liquid cartridges 20 are independent and do not interfere with each other. The additional storage cavities 20a of the additional liquid cartridges 20 are not communicated with each other.

Each atomization core component 10 has the main storage cavity 10a and the atomization cavity 10b that are communicated with each other. This means that, for each atomization core component 10, when it is not mated with the additional liquid cartridge 20, its main storage cavity 10a stores an aerosol generating substrate. The aerosol generating substrate in the main storage cavity 10a can enter the atomization cavity 10b and be atomized in the atomization cavity 10b to generate aerosols. The arrangement of the main storage cavities 10a can reduce the probability of dry heating. Meanwhile, when communicated with the additional storage cavities 20a, the main storage cavities 10a guide the aerosol generating substrates in the additional storage cavities 20a to corresponding atomization cavities 10b for atomization, so as to increase aerosols generated by a single atomization core component 10.

The atomization core components 10 are spaced apart from each other in the first direction. This means that the atomization core components 10 can operate independently without interference, and the main storage cavities 10a of the atomization core components 10 are not communicated with each other, with no shared or overlapping portions.

The first direction is intersected with the axial direction of the aerosol generating device 1. An angle between the first direction and the axial direction of the aerosol generating device 1 may be an acute angle, an obtuse angle, or a right angle. For example, the first direction is perpendicular to the axial direction of the aerosol generating device 1.

At least one additional liquid cartridge 20 is located on one side of at least one atomization core component 10 in the axial direction, meaning that the additional liquid cartridge 20 can be mated with the atomization core component 10 in the axial direction.

The additional liquid cartridge 20 may be located at the end of the atomization core component 10 close to the mouthpiece 30 in the axial direction. In this case, the mouthpiece 30, the additional liquid cartridge 20, and the atomization core component 10 are sequentially mated in the axial direction. Alternatively, the additional liquid cartridge 20 may be located at the end of the atomization core component 10 away from the mouthpiece 30 in the axial direction. In this case, the mouthpiece 30, the atomization core component 10, and the additional liquid cartridge 20 are sequentially mated in the axial direction.

A mating manner for the mouthpiece 30, the additional liquid cartridge 20, and the atomization core component 10 may be either detachable mating or non-detachable mating, with no restrictions specified here.

The additional storage cavity 20a is communicated with at least one main storage cavity 10a. This means that only one of the plurality of atomization core components 10 may be correspondingly provided with the additional liquid cartridge 20, and one main storage cavity 10a is communicated with the additional liquid cartridge 20 to supplement an aerosol generating substrate to a corresponding atomization cavity 10b, while other atomization core components 10 are provided with no additional liquid cartridge 20 and rely solely on their own main storage cavities 10a to supply aerosol generating substrates to the atomization cavities 10b. Alternatively, the additional storage cavity 20a may be communicated with a plurality of main storage cavities 10a. The plurality of main storage cavities 10a may be the main storage cavities 10a of all the atomization core components 10 or some of the main storage cavities 10a of all the atomization core components 10. In this way, a single additional storage cavity 20a can supply aerosol generating substrates to a plurality of main storage cavities 10a.

For example, a single additional liquid cartridge 20 may define one additional storage cavity 20a. The single additional storage cavity 20a is communicated with one main storage cavity 10a.

The air outlet channel 1a is a set of channels that are located at the downstream positions of the atomization cavities 10b in a flowing direction of an airflow and can allow the airflow to flow to the mouthpiece 30.

It can be understood that in the embodiment in which the mouthpiece 30, the additional liquid cartridge 20, and the atomization core component 10 are sequentially mated in the axial direction, the air outlet channel 1a may include a set of an airflow channel located within the additional liquid cartridge 20 and an airflow channel between the mouthpiece 30 and the additional liquid cartridge 20. In the embodiment in which the mouthpiece 30, the atomization core component 10, and the additional liquid cartridge 20 are sequentially mated in the axial direction, the air outlet channel 1a may be a set of airflow channels between the mouthpiece 30 and the atomization core component 10.

It should be noted that the mouthpiece 30 is communicated with at least one atomization cavity 10b through the air outlet channel 1a. This means that the mouthpiece 30 can achieve airflow communication with any one or more atomization cavities 10b through the air outlet channel 1a. When the mouthpiece 30 is communicated with one atomization cavity 10b through the air outlet channel 1a, the negative pressure of the mouthpiece 30 can act on the atomization cavity 10b. The negative pressure of the mouthpiece 30 can act on the atomization cavity 10b through the air outlet channel 1a, to generate aerosols inside the atomization cavity 10b. The aerosols then flow to the mouthpiece 30 through the air outlet channel 1a under the action of the negative pressure of the mouthpiece 30, for user inhalation. In this case, the remaining atomization cavities 10b are not communicated with the mouthpiece 30, so that the negative pressure of the mouthpiece 30 does not act on the remaining atomization cavities 10b through the air outlet channel 1a. When the mouthpiece 30 is communicated with all the atomization cavities 10b through the air outlet channel 1a, the negative pressure of the mouthpiece 30 can act on all the atomization cavities 10b, and aerosols generated by the atomization cavities 10b flow to the mouthpiece 30 through the air outlet channel 1a.

It can be understood that the movement of the mouthpiece 30 implements the communication to one atomization cavity 10b and no communication to the remaining atomization cavities 10b, or implements the communication to all the atomization cavities 10b. Alternatively, movements of other structures implement the communication between the mouthpiece 30 and one atomization cavity 10b and no communication to the remaining atomization cavities 10b, or implement the communication to all the atomization cavities 10b. In this case, the other structures can define at least a portion of the air outlet channel 1a.

That is, the mouthpiece 30 can be selectively communicated with at least any one of the plurality of atomization cavities 10b. In this way, a user can switch between different inhalation manners. For example, by communicating the mouthpiece 30 and different atomization cavities 10b, inhalation with a large count of puffs and/or inhalation with different flavors can be achieved using the single aerosol generating device 1. Or, a user can simultaneously communicate the mouthpiece 30 with the plurality of atomization cavities 10b, to achieve one inhalation of a large content of aerosols and/or one inhalation of mixed aerosols with different flavors.

For example, in some embodiments, one end of the air outlet channel 1a may have a plurality of connection ports respectively mated with the atomization cavities 10b, while the other end of the air outlet channel 1a may have only one connection port communicated with the mouthpiece 30. In this case, the negative pressure of the mouthpiece 30 can act on the atomization cavities 10b through the connection port at the other end of the air outlet channel 1a, so that the atomization cavities 10b can perform atomization simultaneously. In this case, the mouthpiece 30 is communicated with all the atomization cavities 10b through the air outlet channel 1a.

In some other embodiments, referring to FIG. 2 and FIG. 7, one end of the air outlet channel 1a may have a plurality of connection ports for being respectively mated with the atomization cavities 10b, while the other end of the air outlet channel 1a may have a plurality of connection ports. At least any one of the plurality of connection ports is communicated with the mouthpiece 30. In this case, the negative pressure of the mouthpiece 30 can be transmitted to at least any one atomization cavity 10b. The at least any one atomization cavity 10b can perform atomization. In this case, one end of the air outlet channel 1a can be communicated with any one or more atomization cavities 10b to achieve aerosol generation of a single atomization cavity 10b or simultaneous aerosol generation of the plurality of atomization cavities 10b.

In still some embodiments, one end of the air outlet channel 1a may have a plurality of connection ports. The plurality of connection ports are detachably mated with the atomization cavities 10b. The other end of the air outlet channel 1a may have a plurality of connection ports. The plurality of connection ports are detachably mated with the mouthpiece 30. In this way, the connection ports at the two ends of the air outlet channel 1a can be communicated with the atomization cavities 10b and the mouthpiece 30, respectively, to achieve the communication between the mouthpiece 30 and one atomization cavity 10b or the simultaneous communication between the mouthpiece 30 and the plurality of atomization cavities 10b.

It should be noted that the aerosol generating substrate includes but is not limited to materials for medical treatment, health maintenance, health, beauty, and the like.

It can be understood that the content of the aerosol generating substrates stored in the main storage cavity 10a may be consistent or inconsistent. For example, the content of the aerosol generating substrates stored in the main storage cavities 10a is consistent.

According to the aerosol generating device 1 provided in the embodiments of this application, through the arrangement of the at least one additional liquid cartridge 20 and the plurality of atomization core components 10, the aerosol generating device 1 has sufficient aerosol generating substrates, can generate sufficient aerosols and reduce the possibility of dry heating during atomization, and has the high atomization balance. In addition, the mouthpiece 30 is communicated with the at least one atomization cavity 10 through the air outlet channel 1a, to meet different needs of users for aerosol inhalation volumes and inhalation flavors and enhance the user experience.

In some embodiments, referring to FIG. 2 to FIG. 8, a plurality of additional liquid cartridges 20 are provided. The plurality of additional liquid cartridges 20 are in one-to-one correspondence with the plurality of main storage cavities 10a. The main storage cavities 10a are configured to guide aerosol generating substrates in the additional storage cavities 20a to the atomization cavities 10b. The plurality of additional storage cavities 20a are spaced apart from each other in the first direction.

That is, the quantity of additional liquid cartridges 20 is the same as the quantity of atomization core components 10. Each atomization core component 10 is correspondingly mated with one additional liquid cartridge 20. One additional liquid cartridge 20 corresponds to one main storage cavity 10a and one atomization cavity 10b. In this way, a single additional liquid cartridge 20 only needs to be correspondingly connected to one atomization core component 10. The connection is convenient. In addition, no interference with other atomization core components 10 and other additional liquid cartridges 20 will occur. The supplementation of the aerosol generating substrate can be smoother. If the additional liquid cartridges 20 are detachably mated with the atomization core components 10, the atomization core components 10 are in one-to-one correspondence with the additional liquid cartridges 20. This can increase the convenience of mounting and removal.

In this embodiment, the plurality of additional liquid cartridges 20 are in one-to-one correspondence with the plurality of main storage cavities 10a, making the mating convenient, and supplementing a large number of aerosol generating substrates to the corresponding main storage cavities 10a, so that a single atomization core component 10 can generate more aerosols, to increase aerosols generated by a single aerosol generating device 1. Meanwhile, the arrangement of the plurality of additional liquid cartridges 20 can increase the ease of mating between the additional liquid cartridges 20 and the atomization core components 10, and facilitates the formation of a symmetrical arrangement structure.

For example, in some embodiments, referring to FIG. 2 to FIG. 5 and FIG. 7 to FIG. 8, two atomization core components 10 are provided, and two additional liquid cartridges 20 are provided. The two additional liquid cartridges 20 are symmetrically arranged, and the two atomization core components 10 are in centrosymmetry. Therefore, the shapes and sizes of the additional liquid cartridges 20 are the same, and the shapes and sizes of the atomization core components 10 are the same. The atomization core components 10 can be mounted interchangeably at expected positions without distinction, thus improving the assembling efficiency. Each expected position refers to a design mounting position of each atomization core component 10.

In some embodiments, referring to FIG. 3, the aerosol generating device 1 is provided with an air inlet channel 1c. At least any one of the atomization cavities 10b is communicated with an external environment through the air inlet channel 1c. The aerosol generating device 1 includes at least one sensor. The at least one sensor is configured to detect flowing of an airflow inside the air inlet channel 1c.

Here, the air inlet channel 1c is a space that is located at upstream positions of the atomization cavities 10b in the flowing direction of an airflow and allows an airflow in the external environment to flow.

It can be understood that at least any one of the atomization cavities 10b is communicated with the external environment through the air inlet channel 1c. This means that any atomization cavity 10b can be in air inlet communication to the air inlet channel 1c, and the remaining atomization cavities 10b can be mated with the air inlet channel 1c, but the air in the external environment will not enter the remaining atomization cavities 10b. In this case, only one atomization cavity 10b performs atomization. Alternatively, some (more than one) or all of the atomization cavities 10b are communicated with the air inlet channel 1c. In this case, some (more than one) or all of the atomization cavities 10b perform atomization.

For example, two atomization cavities 10b are used as an example. The air inlet channel 1c may include a main air inlet channel, a first starting airway, and a second starting airway. The first starting airway and the second starting airway are not communicated with each other. One end of the first starting airway is communicated with the main air inlet channel, and the other end is connected to one atomization cavity 10b. One end of the second starting airway is communicated with the main air inlet channel, and the other end is communicated with the other atomization cavity 10b. The main air inlet channel is communicated with the external environment. When the air outlet channel 1a is in air outlet communication to one atomization cavity 10b, under the action of the negative pressure of the mouthpiece 30, the airflow in the external environment flows through the main air inlet channel to one of the first starting airway or the second starting airway, and no air enters the other one of the first starting airway or the second starting airway. In this case, only one atomization core component 10 performs atomization. When the air outlet channel 1a is communicated with the two atomization cavities 10b, under the action of the negative pressure of the mouthpiece 30, the airflow in the external environment respectively flows through the main air inlet channel to the first starting airway or the second starting airway, to respectively flow to the two atomization cavities 10b. In this case, the two atomization core components 10 perform atomization.

The sensor can detect the flowing of the airflow in the air inlet channel 1c. For example, by detecting a negative pressure signal, the aerosol generating device 1 can activate a corresponding atomization core component 10 based on the negative pressure signal and deactivate the atomization core component 10 without the negative pressure signal. For example, when only one atomization cavity 10b is in air outlet communication to the air outlet channel 1a, the negative pressure of the mouthpiece 30 acts on the atomization cavity 10b, and the sensor can detect a negative pressure signal transmitted by the atomization cavity 10b, so that the atomization core component 10 can be electrified to achieve atomization. However, the other atomization cavity 10b is not in air outlet communication to the air outlet channel 1a, the negative pressure of the mouthpiece 30 does not act on the other atomization cavity 10b, and the sensor cannot detect a negative pressure signal. Therefore, the atomization core component 10 corresponding to the other atomization cavity 10b is not electrified and cannot perform atomization. In this way, in this embodiment, by the arrangement of the sensor, the reliability of atomization is increased, and the probability of false activation is reduced. In addition, pressing a button is not required, and the convenience of activating atomization is higher.

In some embodiments, the mouthpiece 30, each additional liquid cartridge 20, and the atomization core components 10 are sequentially mated in the axial direction.

In this way, in one aspect, it is convenient to reduce the resistance to the flowing of the aerosol generating substrate in the additional liquid cartridge 20 to each main storage cavity 10a and increase the smoothness of flowing. In another aspect, it is also convenient to define at least a portion of the air outlet channel 1a through the additional liquid cartridge 20, thereby providing a sufficient air outlet path to ensure that the temperature of the aerosols flowing toward the mouthpiece 30 is appropriate.

In some embodiments, referring to FIG. 2 and FIG. 7, the air outlet channel 1a includes a plurality of sub airways 1b that are not communicated with each other. One ends of the plurality of sub airways 1b are in one-to-one correspondence with the plurality of atomization cavities 10b, and the other end of at least one sub airway 1b is communicated with the mouthpiece 30.

That is, the sub airways 1b and the atomization cavities 10b are in the same quantity and are in one-to-one correspondence.

The other end of at least one sub airway 1b is communicated with the mouthpiece 30. Here, the other end of only one sub airway 1b is communicated with the mouthpiece 30. In this way, the negative pressure of the mouthpiece 30 can act on a corresponding atomization cavity 10b through the sub airway 1b, and air can enter the atomization cavity 10b for atomization. The remaining sub airways 1b are not communicated with the mouthpiece 30, and the negative pressure of the mouthpiece 30 cannot act on corresponding atomization cavities 10b through the remaining sub airways 1b. No air enters the remaining atomization cavities 10b, and no atomization is performed. Certainly, the other ends of all the sub airways 1b may be communicated with the mouthpiece 30. In this case, the negative pressure of the mouthpiece 30 can act on corresponding atomization cavities 10b through all the sub airways 1b, and air can enter all the atomization cavities 10b for atomization.

Certainly, some (greater than one) of all the sub airways 1b may be communicated with the mouthpiece 30, while the remaining portion may not be communicated with the mouthpiece 30. For details, refer to the above description, which will not be elaborated here.

It can be understood that the manner for not communicating the mouthpiece 30 with the atomization cavity 10b is not limited. For example, the mouthpiece 30 may be staggered from the sub airways 1b to achieve no communication, or an intermediate structure is used for blocking.

The arrangement manner for the sub airways 1b is not limited. For example, two sub airways 1b are used as an example. Referring to FIG. 2 and FIG. 7, the two sub airways 1b are spaced apart from each other in the first direction. One end of each of the two sub airways 1b is directly communicated with one atomization cavity 10b. At least any one of the two sub airways 1b is directly communicated with the mouthpiece 30. In this case, one end of the air outlet channel 1a (the end mated with the atomization cavity 10b) has two connection ports, and the other end (the end mated with the mouthpiece 30) has two connection ports. The two sub airways 1b are arranged in parallel.

In some other embodiments, one end of each of the two sub airways 1b is directly communicated with one atomization cavity 10b, and the other ends of the two sub airways 1b are indirectly communicated with the mouthpiece 30. That is, the air outlet channel 1a is also provided with a mixing airway. The other ends of the two sub airways 1b are communicated with the mixing airway. The end of the mixing airway away from the two sub airways 1b is communicated with the mouthpiece 30. In this embodiment, one end of the air outlet channel 1a (the end mated with the atomization cavity 10b) has two connection ports, and the other end (the end mated with the mouthpiece 30) has only one connection port.

In this embodiment, the sub airways 1b can be in one-to-one correspondence with the atomization cavities 10b, thus achieving high air outlet smoothness and reliability. Meanwhile, the mouthpiece 30 can be selectively communicated with at least any sub airway 1b, which is convenient to meet different needs of users for aerosol inhalation volumes and inhalation flavors and enhance the user experience.

The formation manner of the air outlet channel 1a is not limited. For example, in the embodiment in which the mouthpiece 30, the additional liquid cartridge 20, and the atomization core component 10 are sequentially mated in the axial direction, the additional liquid cartridge 20 has a space that is not communicated with the additional storage cavity 20A, and this space defines at least one sub airway 1b. When the additional liquid cartridges 20 are in one-to-one correspondence with the atomization cavities 10b, a single additional liquid cartridge 20 defines one sub airway 1b.

For example, referring to FIG. 4, FIG. 5, and FIG. 8, the additional liquid cartridges 20 are in one-to-one correspondence with the atomization cavities 10b. A space between the inner wall and the outer wall of each additional liquid cartridge 20 defines the additional storage cavity 20a, and the wall of the additional liquid cartridge 20 defines at least a portion of each sub airway 1b. In this way, the liquid storage sealing performance and reliability can be enhanced, airflow paths can be reduced, and the size of the aerosol generating device 1 in the axial direction can be reduced.

For example, the sub airways 1b can be coaxial with the atomization cavities 10b communicated with the sub airways 1b. This can help the aerosols to smoothly flow from the atomization cavities 10b to the corresponding sub airways 1b, reduce the probability of turning, and improve the atomization efficiency.

The manner for selectively communicating the mouthpiece 30 with any one of the sub airways 1b is not limited.

In some embodiments, referring to FIG. 1 to FIG. 5, the mouthpiece 30 can move relative to the additional liquid cartridges 20 to be communicated with at least one sub airway 1b.

It should be noted that the movement of the mouthpiece 30 may be in the form of rotation, sliding, or a combination of various forms of movement. It is not limited here.

For example, the mouthpiece 30 is rotatably connected to at least one additional liquid cartridge 20. Here, when one additional liquid cartridge 20 is provided, the mouthpiece 30 is rotatably connected to one additional liquid cartridge 20. When a plurality of additional liquid cartridges 20 are provided, the mouthpiece 30 is rotatably connected to all the additional liquid cartridges 20. In this way, the mouthpiece 30 can rotate relative to the sub airways 1b by rotating relative to at least one additional liquid cartridge 20, thereby changing the communication manner for the mouthpiece 30 and the sub airways 1b, and achieving the communication between the mouthpiece 30 and at least one sub airway 1b.

In this embodiment, the communication manner for the mouthpiece 30 and the sub airways 1b is adjusted by the movement of the mouthpiece 30 itself, without additionally arranging an intermediate structure. After one atomization cavity 10b has atomized all the aerosol generation substrates corresponding to it, the mouthpiece 30 can be moved to achieve the atomization of a next atomization cavity 10b, thus implementing a large count of puffs during many inhalations. Alternatively, change of the inhalation flavor or increase of the aerosol inhalation volume can be achieved by the movement of the mouthpiece 30, to meet various inhalation requirements and enhance the user experience. Meanwhile, the overall structure of the aerosol generating device1 can be relatively simple.

In other embodiments, the air outlet channel 1a may be provided with no sub airway 1b, namely, the air outlet channel 1a does not have a branch such that the lower reaches of the plurality of atomization cavities 10b are all directly communicated with the same air outlet channel 1a.

In some other embodiments, referring to FIG. 5 to FIG. 8, the aerosol generating device1 includes a switch element 50. The switch element 50 is disposed between the mouthpiece 30 and the atomization core components 10. The switch element 50 has a communication hole 50a. The communication hole 50a defines at least a portion of the air outlet channel 1a. The switch element 50 can move relative to the mouthpiece 30 and the atomization core components 10, for the mouthpiece 30 to be communicated with at least one of the atomization cavities 10b through the communication hole 50a.

It should be noted that the movement of the switch element 50 may be in the form of rotation, sliding, or a combination of various forms of movement. It is not limited here.

It should be noted that the quantity of switch elements 50 is not limited. Only one switch element 50 may be provided. One switch element 50 achieves the communication between the mouthpiece 30 and at least one atomization cavity 10b, or a plurality of switch elements 50 may be provided. It is not limited here.

It can be understood that each switch element 50 is arranged between the mouthpiece 30 and each atomization core component 10. In the embodiment in which the mouthpiece 30, the additional liquid cartridge 20, and the atomization core component 10 are sequentially mated in the axial direction, the switch element 50 is arranged at the mating junction of the mouthpiece 30 and the additional liquid cartridge 20. In this case, the communication hole 50a and the additional liquid cartridge 20 jointly define the air outlet channel 1a. In the embodiment in which the mouthpiece 30, the atomization core component 10, and the additional liquid cartridge 20 are sequentially mated in the axial direction, the switch element 50 is arranged at the mating junction of the mouthpiece 30 and the atomization core component 10, and the additional liquid cartridge 20 does not participate in the structural composition of the air outlet channel 1a. The communication hole 50a defines the air outlet channel 1a. When the switch elements 50 are in one-to-one correspondence with the atomization cavities 10b, the communication hole 50a of one switch element 50 defines one sub airway 1b.

In this way, that the mouthpiece 30 is communicated with at least one of the atomization cavities 10b through the communication hole 50a includes various cases.

In a first case: Each additional liquid cartridge 20 is disposed between the mouthpiece 30 and each atomization core component 10. The additional liquid cartridge 20 defines at least part of the sub airways 1b. Only one switch element 50 is provided, and the switch element 50 has only one communication hole 50. When the switch element 50 moves relative to the mouthpiece 30 and the atomization core component 10, sub airways 1b communicated with the communication hole 50 are adjusted to achieve communication between the mouthpiece 30 and different sub airways 1b. In this case, the mouthpiece 30 is communicated with one sub airway 1b at a time, and the communication hole 50 is not used as part of the sub airways 1b. The communication hole 50 serves as a common communication channel. Through the movement of the single communication hole 50, communication with different sub airways 1b is achieved, and then communication with different atomization cavities 10b is achieved.

In a second case: Only one switch element 50 is provided. The single switch element 50 is provided with a plurality of communication holes 50. The quantity of communication holes 50 are in one-to-one correspondence with the atomization cavities 10b. Meanwhile, the communication holes 50 define at least part of the sub airways 1b. In this case, the arrangement position of the additional liquid cartridge 20 is not limited. By the movement of the switch element 50, the plurality of communication holes 50A are communicated with or staggered from the corresponding atomization cavities 10b, thereby achieving the communication between the mouthpiece 30 and one or more atomization cavities 10b at a time.

In a third case: A plurality of switch elements 50 are provided. A single switch element 50 is provided with one communication hole 50a. The communication holes 50a and the atomization cavities 10b are in the same quantity and are in one-to-one correspondence. In this case, the communication holes 50a define at least part of the sub airways 1b. In this case, the arrangement position of the additional liquid cartridge 20 is not limited. By the movement of the plurality of switch elements 50, the plurality of communication holes 50A are communicated with or staggered from the corresponding atomization cavities 10b, thereby achieving the communication between the mouthpiece 30 and one or more atomization cavities 10b at a time.

It should be noted that in this embodiment, there is no relative movement between the mouthpiece 30 and each atomization core component 10, as well as each additional liquid cartridge 20.

In this embodiment, by the arrangement of the switch element 50, the movement of the switch element 50 can achieve the communication between the mouthpiece 30 and at least one atomization cavity 10b through the communication hole 50a. This can reduce the structural limitations on the mouthpiece 30. Meanwhile, the reliability of communication and the reliability of disconnection of the switch element 50 are high, and the state switching of the aerosol generating device1 is more reliable.

The specific structure of the switch element 50 is not limited. The switch element 50 may be a knob structure or other types of structures. It is not limited here.

For example, referring to FIG. 7 and FIG. 8, the mouthpiece 30 is provided with at least one through groove 30a in the axial direction. The switch element 50 includes a main body portion 501 and a driving portion 502 that are connected to each other. The driving portion 502 is threaded in the through groove 30a and exposed from the outer surface of the aerosol generating device 1. The main body portion 501 is provided with the communication hole 50a. The driving portion 502 can drive the main body portion 501 to rotate relative to the mouthpiece 30 under the action of an external force, for the communication hole 50a to communicate the mouthpiece 30 with at least one of the atomization cavities 10b, or for the communication hole 50a to be staggered from the mouthpiece 30.

The driving portion 502 is threaded in the through groove 30a and exposed from the outer surface of the aerosol generating device1. The through groove 30a is configured to provide a mounting space and a movement space for the driving portion 502. The driving portion 502 can be seen by a user. The user can apply the external force to the exposed driving portion 502, causing the driving portion 502 to drive the main body portion 501 to rotate relative to the mouthpiece 30, thereby causing the communication hole 50a to move relative to the mouthpiece 30. When the communication hole 50a communicates the mouthpiece 30 with at least one of the atomization cavities 10b, aerosols generated by at least one atomization cavity 10b can flow through the communication hole 50a to the mouthpiece 30 for user inhalation. When the communication hole 50a is staggered from the mouthpiece 30, the communication hole 50a disconnects each atomization cavity 10b from the mouthpiece 30, and no aerosol is generated in each atomization cavity 10b. That is, in this case, the aerosol generating device1 is in an off state.

In this embodiment, the mating between the driving portion 502 and the main body portion 501 can improve the reliability of the state switching of the aerosol generating device1, and the switching is convenient without significant operations. The operation convenience is high.

In some embodiments, referring to FIG. 7 and FIG. 8, a plurality of switch elements 50 are provided. The quantity of switch elements 50 corresponds to the quantity of atomization cavities 10b. In this way, one switch element 50 correspondingly opens or closes the communication between one atomization cavity 10b and the mouthpiece 30. This allows a user to easily identify the corresponding atomization cavity 10b without the need for judgment. The one-to-one arrangement enhances the switching reliability and reduces the switching complexity.

In some embodiments, referring to FIG. 2 and FIG. 7, each additional liquid cartridge 20 has a through channel that forms at least a portion of the air outlet channel 1a. The additional liquid cartridge 20 includes at least one liquid guiding structure 203. Each liquid guiding structure 203 is at least partially located inside the channel.

In this embodiment, the channel is a sub airway 1b. In other embodiments, the channel may be a portion of the air outlet channel 1a except a sub airway 1b.

Each liquid guiding structure 203 is configured to be in contact with condensate flowing into the channel. The liquid guiding structure 203 destroys the continuity of the condensate, namely, destroys the surface tension of the condensate, to downwards guide the condensate and prevent a user from inhaling the condensate during inhalation.

In this embodiment, each liquid guiding structure 203 is located on a wall surface of the formed channel. In other embodiments, the liquid guiding structure 203 can be formed at a position of the channel except the wall surface, and the end portion of the liquid guiding structure 203 at least partially extends into the channel or the end portion of the liquid guiding structure 203 is flush with the end surface of the channel.

In some embodiments, at least one notch 20b is formed in the wall surface of the additional liquid cartridge 20. The notch 20b is communicated with the air outlet channel 1a. The aerosol generating device 1 includes at least one liquid absorbing member 60. The at least one liquid absorbing member 60 is exposed from the air outlet channel 1a through the notch 20b and seals each notch 20b. At least a portion of each liquid guiding structure 203 is in contact with each liquid absorbing member 60 to guide condensate inside the air outlet channel 1a to the liquid absorbing member 60.

It should be noted that aerosols inevitably produce part of condensate during flowing. In addition, when a user stops using the product, aerosols remaining in the air outlet channel will also produce condensate. As the condensate flows back toward the atomization cavities, the aerosol flavor easily fades, which affects the user experience.

Therefore, in this embodiment, by the arrangement of the liquid guiding structure 203, the liquid guiding structure 203 can guide the condensate flowing back from the air outlet channel 1a toward the atomization cavities 10b to the liquid absorbing member 60. The liquid absorbing member 60 absorbs the condensate, making it difficult for the condensate to flow back to the atomization cavities 10b, thus enhancing the user experience.

It can be understood that one atomization cavity 10b may correspond to one or more liquid guiding structures 203. For example, one atomization cavity 10b may correspond to a plurality of liquid guiding structures 203. The plurality of liquid guiding structures 203 are symmetrically arranged about the axis of a sub airway 1b corresponding to the atomization cavity 10b.

The specific structure of the liquid guiding structure 203 is not limited. For example, the extension direction of the liquid guiding structure 203 may be the same as the extension direction of the sub airway 1b.

It should be noted that the notch 20b is communicated with the air outlet channel 1a, and the notch 20b is not communicated with the additional storage cavity 20a. The notch 20b is configured to mate the liquid absorbing member 60 with the air outlet channel 1a.

The liquid absorbing member 60 is exposed from the air outlet channel 1a through the notch 20b and seals the notch 20b. This means that the liquid absorbing member 60 can be exposed from the air outlet channel 1a under the action of the notch 20b, so that the condensate guided by the liquid guiding structure 203 can directly flow toward the liquid absorbing member 60, to reduce the probability of backward flowing. The liquid absorbing member 60 seals the notch 20b, which reduces the probability of air leakage from the air outlet channel 1a while absorbing the condensate.

It can be understood that one atomization cavity 10b may correspond to one or more liquid absorbing members 60. For example, one atomization cavity 10b may correspond to a plurality of liquid absorbing members 60, to improve the liquid absorbing reliability. For example, referring to FIG. 2 and FIG. 7, one atomization cavity 10b corresponds to two liquid absorbing members 60. One liquid absorbing member 60 adsorbs the condensate absorbed by the liquid guiding structure 203, while the other liquid absorbing member 60 adsorbs the condensate absorbed by the previous liquid absorbing member 60, to absorb sufficient condensate.

The specific structure of each liquid absorbing member 60 is not limited. For example, each liquid absorbing member 60 may be liquid absorbing cotton.

The specific structure of each additional liquid cartridge 20 is not limited.

In some embodiments, referring to FIG. 3 and FIG. 5, each additional liquid cartridge 20 includes a housing portion 201 and a movable seal member 202. The housing portion 201 defines the additional storage cavity 20a. The movable seal member 202 is arranged on the side of the housing portion 201 facing the atomization core components 10. Each atomization core component 10 includes a communication member 103.

When the additional liquid cartridge 20 is separated from each atomization core component 10, the movable seal member 202 disconnects a fluid path between the additional storage cavity 20a and the main storage cavity 10a.

When the additional liquid cartridge 20 is mated with each atomization core component 10, the communication member 103 drives the movable seal member 202 to move relative to the housing portion 201 to establish fluid communication between the additional storage cavity 20a and the main storage cavity 10a.

For example, an aerosol generating substrate is defined between the inner wall and the outer wall of the housing portion 201, and the inner wall of the housing portion 201 defines at least a portion of each sub airway 1b.

In this embodiment, when the additional liquid cartridge 20 is not mated with each atomization core component 10, the movable seal member 202 seals the housing portion 201, to isolate the aerosol generating substrate inside the additional liquid cartridge 20 from the air and the atomization core component 10, thus reducing the probability of leakage and facilitating transportation and storage when not in use. When the additional liquid cartridge 20 is mated with each atomization core component 10, a force generated by the mating causes the communication member 103 to drive the movable seal member 202 to move relative to the housing portion 201, to open the housing portion 201 and allow the aerosol generating substrate to flow from the housing portion 201 to the atomization core component 10, thus improving the atomization reliability.

In some embodiments, referring to FIG. 5, one end of the movable seal member 202 is a fixed end 202a and the other end is a free end 202b. The fixed end 202a and the housing portion 201 are connected to each other and do not have relative movement. The communication member 103 is configured to drive the free end 202b to rotate relative to a connection junction of the free end and the fixed end 202a.

Two movable seal members 202 are provided. The rotation directions of the free ends 202b of the two movable seal members 202 are opposite.

The fixed ends 202a and the housing portion 201 are connected to each other and do not have relative movement. This means that the fixed ends 202a and the housing portion 201 are in a relatively stationary state, and the movable seal members 202 rotate relative to the housing portion 201 through the free ends 202b.

That is, a single additional liquid cartridge 20 includes two movable seal members 202. Here, the two movable seal members 202 can be separately configured or integrally molded.

For example, the free ends 202b of the two movable seal members 202 are in centrosymmetry about the axis of the housing portion 201, and the axis of the housing portion 201 can be parallel to the axial direction of the aerosol generating device 1.

In this embodiment, the arrangement of the two movable seal members 202 can increase the liquid discharge rate of the housing portion 201 and improve the atomization balance. The rotation directions of the free ends 202b of the two movable seal members 202 are opposite, which can further improve the flowing smoothness of the aerosol generating substrate of the housing portion 201 toward each atomization core component 10.

The specific structure of each atomization core component 10 is not limited.

In some embodiments, referring to FIG. 2 and FIG. 7, each atomization core component 10 includes an atomization core 101 and a liquid storage member 102. The atomization core 101 is arranged inside the atomization cavity 10b. The liquid storage member 102 is located inside the main storage cavity 10a. The liquid storage member 102 stores the aerosol generating substrate. The liquid storage volume of the liquid storage member 102 is less than the liquid storage volume of the additional liquid cartridge 20.

It can be understood that the liquid storage member 102 may be a structure such as liquid storage cotton.

The atomization core 101 may be a structure such as a heating wire or a heating mesh.

In this embodiment, the liquid storage member 102 can provide an aerosol generating substrate for the atomization cavity 10b, to reduce the probability of dry heating of the atomization core 101. The liquid storage volume of the liquid storage member 102 is less than the liquid storage volume of the additional liquid cartridge 20, that is, the quantity of the aerosol generating substrates stored in the liquid storage member 102 is less than the quantity the aerosol generating substrates stored in the additional liquid cartridge 20. In this way, the structural complexity of the atomization core component 10 can be reduced. Meanwhile, it is convenient to improve the atomization reliability. A single atomization core component 10 can atomize sufficient aerosol generating substrates to meet an inhalation need of a user.

In some embodiments, referring to FIG. 2 to FIG. 4, and FIG. 7 to FIG. 8, the aerosol generating device 1 includes a power supply assembly 40. Each atomization core component 10 includes a conductive element 104. The atomization core component 10 or the power supply assembly 40 is formed with a mounting region 10c that is not communicated with the atomization cavity 10b. The power supply assembly 40 includes a power supply member 401. The power supply member 401 is arranged in the mounting region 10c. One end of the conductive element 104 is electrically connected to the atomization core 101. At least part of the other end of the conductive element 104 is arranged in the mounting region 10c in a bent manner and is separably in electrical contact with the power supply member 401.

It can be understood that the specific structure of the mounting region 10c is not limited. It may be a hole or other mounting structures, and will not be limited here. For example, the mounting region 10c is provided in the atomization core component 10.

The mounting region 10c is not communicated with the atomization cavity 10b. This means that there is no intersection or common portion between the mounting region 10c and the atomization cavity 10b.

The conductive element 104 and the power supply assembly 401 are electrically connected to each other outside the atomization cavity 10b, thus improving the reliability of electrical connection.

The conductive element 104 and the power supply member 401 are separably in electrical contact. That is, the conductive element 104 and the power supply member 401 can be separated or abutted, thus reducing the inconvenience caused by welding and making mounting and removal convenient.

In this embodiment, the contact with the power supply member 401 is achieved through the bending deformation of the conductive element 104. In one aspect, it increases the mating tightness, and in another aspect, it also facilitates the detachable electrical connection.

The quantity of conductive elements 104 of a single atomization core component 10 and the quantity of corresponding power supply members 401 are not limited. For example, three conductive elements 104 of the single atomization core component 10 and three corresponding power supply members 401 are provided.

For example, in the embodiment in which two atomization core components 10 are provided, the two groups of power supply members 401 corresponding to the two atomization core components 10 are in centrosymmetry about the axis of the power supply assembly 40. In this way, there is no need to distinguish the atomization core components 10. This facilitates the smooth connection between the atomization core components 10 and the power supply assembly 40.

The conductive element 104 may be a pin or other structures, and the power supply member 401 may be an electrode pillar or other structures. They are not limited here.

In the description of this application, the descriptions referring to the terms "one embodiment", "some embodiments", "an example", "a specific example", "some examples", or the like mean that specific features, structures, materials, or characteristics described in connection with the embodiments or examples are included in at least one embodiment or example of this application. In this application, exemplary expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Additionally, without mutual contradiction, those skilled in the art may combine different embodiments or examples described in this application, as well as features of the different embodiments or examples.

The above contents are merely preferred embodiments of this application and are not used for limiting this application, and this application may be variously modified and changed for those skilled in the art.