EP4755214A1

EP4755214A1 - Liquid storage component and electronic atomization device

Info

Publication number: EP4755214A1
Application number: EP24870548.5A
Authority: EP
Inventors: Long GAN; Duoliang WU; Linhai LU; Lingjie DU; Zhongli XU; Yonghai LI
Original assignee: Shenzhen FirstUnion Technology Co Ltd
Current assignee: Shenzhen FirstUnion Technology Co Ltd
Priority date: 2023-09-28
Filing date: 2024-09-19
Publication date: 2026-06-10
Also published as: CN119699671A; WO2025067004A1

Abstract

A liquid storage component (200) and an electronic atomization device (100). The electronic atomization device comprises: a first housing assembly (101), in which a first liquid storage cavity (103) for storing a first liquid matrix is formed; an atomization assembly (104); and a second housing assembly (201) independent of the first housing assembly (101), wherein a second liquid storage cavity (202) for storing a second liquid matrix is formed in the second housing assembly (201). The first housing assembly(101) is configured to be capable of connecting to the second housing assembly (201) and be capable of simultaneously establishing a first channel and a second channel between the first housing assembly (101) and the second housing assembly (201), wherein the first channel enables a liquid matrix portion below the liquid level in the first liquid storage cavity (103) to be in communication with a liquid matrix portion below the liquid level in the second liquid storage cavity (202), and the second channel enables an air portion above the liquid level in the first liquid storage cavity (103) to be in communication with an air portion above the liquid level in the second liquid storage cavity (202). By means of the first liquid storage cavity (103) and the second liquid storage cavity (202) in communication with each other in the liquid storage component (200) and the electronic atomization device (100), on the one hand, the liquid matrix capacity is increased; on the other hand, the use cost of a user is reduced, and the use experience of the user is improved.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to Chinese Patent Application No. 202311292772.2, filed with the China National Intellectual Property Administration on September 28, 2023 and entitled "LIQUID STORAGE COMPONENT AND ELECTRONIC ATOMIZATION DEVICE", which is incorporated herein by reference in its entirety.

TECHNICAL FIELD

This application relates to the technical field of electronic atomization, and in particular, to a liquid storage component and an electronic atomization device.

BACKGROUND

An electronic atomization device is an electronic product that generates an aerosol by atomizing a liquid substrate for a user to inhale, which generally includes two parts: an atomizer and a power supply assembly. The atomizer has the liquid substrate stored therein and is provided with an atomization assembly for atomizing the liquid substrate. The power supply assembly includes a battery and a circuit board.
An existing electronic atomization device is limited by various factors, for example, costs and regulations, and an amount of a liquid substrate stored in the atomizer is generally small. When the liquid substrate is completely consumed, usage may continue through manners, such as liquid injection and atomizer replacement, or the device is directly discarded. On the one hand, the manners bring inconvenience to users, degrading user experience, and on the other hand, increase use costs for the users.

SUMMARY

This application is intended to provide a liquid storage component and an electronic atomization device, so as to avoid a problem that an existing electronic atomization device brings inconvenience to a user and increases use costs for the user.
An aspect of this application provides an electronic atomization device, including:

a first housing assembly, where a first liquid storage cavity for storing a first liquid substrate is formed in the first housing assembly;
an atomization assembly, arranged in the first housing assembly, where the atomization assembly is configured to atomize the first liquid substrate to generate an aerosol;
a second housing assembly independent of the first housing assembly, where a second liquid storage cavity for storing a second liquid substrate is formed in the second housing assembly.

The first housing assembly is configured to be connected to the second housing assembly, and a first channel and a second channel are allowed to be established simultaneously between the first housing assembly and the second housing assembly, the first channel is configured to bring a liquid substrate portion in the first liquid storage cavity into communication with a liquid substrate portion in the second liquid storage cavity, and the second channel is configured to bring an air portion in the first liquid storage cavity into communication with an air portion in the second liquid storage cavity.
In an example, the first housing assembly is provided with a first accommodating cavity for accommodating at least part of the second housing assembly, or the second housing assembly is provided with a second accommodating cavity for accommodating at least part of the first housing assembly.
In an example, when the first housing assembly is connected to the second housing assembly, the first liquid storage cavity and the second liquid storage cavity are arranged in sequence along a width direction of the electronic atomization device, or the first liquid storage cavity and the second liquid storage cavity are arranged in sequence along a length direction of the electronic atomization device.
In an example, a volume of the first liquid storage cavity is less than a volume of the second liquid storage cavity.
In an example, a capacity of the first liquid substrate stored in the first liquid storage cavity ranges from 0.1 ml to 2 ml, and a capacity of the second liquid substrate stored in the second liquid storage cavity ranges from 2 ml to 10 ml.
In an example, a first airflow channel is provided in the first housing assembly, and a second airflow channel is provided in the second housing assembly.
When the first housing assembly is connected to the second housing assembly, the first airflow channel is in communication with the second airflow channel, so as to transmit the aerosol generated by the atomization assembly.
In an example, the first liquid storage cavity is provided around at least part of the first airflow channel, and the second liquid storage cavity is provided around at least part of the second airflow channel.
In an example, one end of the first airflow channel is in communication with an air inlet, an other end of the first airflow channel is in communication with one end of the second airflow channel, and an other end of the second airflow channel is in communication with an air outlet.
In an example, an airflow channel is provided in the first housing assembly to transmit the aerosol generated by the atomization assembly, and the airflow channel is not provided in the second housing assembly.
In an example, a first through hole is provided on the first housing assembly, and the first through hole is in communication with the liquid substrate portion in the first liquid storage cavity.
A third through hole is provided on the second housing assembly, and the third through hole is in communication with the liquid substrate portion in the second liquid storage cavity.
The first through hole and the third through hole define at least part of the first channel.
In an example, a first connecting member is further included. One end of the first connecting member is in communication with the first through hole. An other end of the first connecting member is in communication with the third through hole.
In an example, the one end of the first connecting member is arranged around at least part of the first through hole or extends into the first through hole, and the other end of the first connecting member is arranged around at least part of the third through hole or extends into the third through hole.
In an example, at least part of a wall defining the third through hole extends into the first through hole, or at least part of a wall defining the first through hole extends into the third through hole.
In an example, a first seal member is arranged between the third through hole and the first through hole, so as to seal a gap between the third through hole and the first through hole.
In an example, the first seal member includes a first partial seal member and a second partial seal member.
The first partial seal member is arranged on an outer surface of the wall defining the third through hole, the second partial seal member is arranged on an inner surface of the wall defining the first through hole, and when at least part of the wall defining the third through hole extends into the first through hole, the first partial seal member is sandwiched between the second partial seal member and the outer surface of the wall defining the third through hole.
The first partial seal member is arranged on an outer surface of the wall defining the first through hole, the second partial seal member is arranged on an inner surface of the wall defining the third through hole, and when at least part of the wall defining the first through hole extends into the third through hole, the first partial seal member is sandwiched between the second partial seal member and the outer surface of the wall defining the first through hole.
In an example, a second through hole is provided on the first housing assembly, and the second through hole is in communication with the air portion in the first liquid storage cavity.
A fourth through hole is provided on the second housing assembly, and the fourth through hole is in communication with the air portion in the second liquid storage cavity.
The second through hole and the fourth through hole define at least part of the second channel.
In an example, a second connecting member is further included. One end of the second connecting member is in communication with the second through hole. An other end of the second connecting member is in communication with the fourth through hole.
In an example, the one end of the second connecting member is arranged around at least part of the second through hole or extended into the second through hole, and the other end of the second connecting member is arranged around at least part of the fourth through hole or extended into the fourth through hole.
In an example, at least part of a wall defining the fourth through hole extends into the second through hole, or at least part of a wall defining the second through hole extends into the fourth through hole.
In an example, a second seal member is arranged between the fourth through hole and the second through hole, so as to seal a gap between the fourth through hole and the second through hole.
In an example, the second seal member includes a third partial seal member and a fourth partial seal member.
The third partial seal member is arranged on an outer surface of the wall defining the fourth through hole, the fourth partial seal member is arranged on an inner surface of the wall defining the second through hole, and when at least part of the wall defining the fourth through hole extends into the second through hole, the third partial seal member is sandwiched between the fourth partial seal member and the outer surface of the wall defining the fourth through hole.
The third partial seal member is arranged on an outer surface of the wall defining the second through hole, the fourth partial seal member is arranged on an inner surface of the wall defining the fourth through hole, and when at least part of the wall defining the second through hole extends into the fourth through hole, the third partial seal member is sandwiched between the fourth partial seal member and the outer surface of the wall defining the second through hole.
In an example, the first housing assembly is provided with a first through hole and a second through hole spaced apart from each other, and the second through hole is located above the first through hole along a longitudinal direction of the electronic atomization device; and the second housing assembly is provided with a third through hole and a fourth through hole spaced apart from each other, and the fourth through hole is located above the third through hole along the longitudinal direction of the electronic atomization device.
The first through hole and the third through hole define the first channel, and the second through hole and the fourth through hole define the second channel.
In an example, the first housing assembly is provided with a first accommodating cavity for accommodating at least part of the second housing assembly, the first accommodating cavity is a notch groove extending through a part of a left side wall and a part of a top wall of the first housing assembly, and the second housing assembly is configured to be assembled to or held on the housing assembly from a left side of the first housing assembly.
Another aspect of this application provides an electronic atomization device, including:

a first housing assembly, where a first liquid storage cavity for storing a first liquid substrate is formed in the first housing assembly;
an atomization assembly, arranged in the first housing assembly, where the atomization assembly is configured to atomize the first liquid substrate to generate an aerosol;
a first through hole, provided on the first housing assembly and configured for being in communication with a liquid substrate portion below a liquid level in the first liquid storage cavity;
a second through hole, provided on the first housing assembly and spaced apart from the first through hole, and configured to be in communication with an air portion above the liquid level in the first liquid storage cavity;
a first thin-film member, arranged in the first through hole to close the first through hole; and
a second thin-film member, arranged in the second through hole to close the second through hole.

The first thin-film member and the second thin-film member may both be pierceable.
Another aspect of this application further provides a liquid storage component, including:
a second housing assembly, where a second liquid storage cavity for storing a second liquid substrate is formed in the second housing assembly.
The second housing assembly is provided with a third through hole and a fourth through hole spaced apart from each other, the third through hole and the fourth through hole are both in communication with the second liquid storage cavity, and the fourth through hole is located above the third through hole along a longitudinal direction of the electronic atomization device.
Through the first liquid storage cavity and the second liquid storage cavity in communication with each other in the liquid storage component and the electronic atomization device, on the one hand, a capacity of a liquid substrate is increased, and on the other hand, use costs for users are reduced, thereby improving user experience.

BRIEF DESCRIPTION OF THE DRAWINGS

One or more embodiments are exemplarily described with reference to figures in the drawings, and the descriptions are not to be construed as a limitation on the embodiments. Elements in the drawings that have the same reference numerals are represented as similar elements, and unless otherwise particularly stated, the figures in the drawings are not drawn to scale.

FIG. 1 is a schematic diagram of an electronic atomization device and a liquid storage component after assembly according to an implementation of this application;
FIG. 2 is a schematic exploded view of an electronic atomization device and a liquid storage component according to an implementation of this application;
FIG. 3 is a schematic cross-sectional view of FIG. 1;
FIG. 4 is a schematic cross-sectional view of FIG. 2;
FIG. 5 is a simplified schematic diagram of a liquid storage cavity after storing a liquid substrate according to an implementation of this application;
FIG. 6 is a schematic diagram of an electronic atomization device from another perspective according to an implementation of this application;
FIG. 7 is a schematic diagram of a liquid storage component from another perspective according to an implementation of this application;
FIG. 8 is a partially enlarged schematic diagram of FIG. 4;
FIG. 9 is a schematic diagram of an electronic atomization device according to another implementation of this application;
FIG. 10 is a schematic exploded view of an electronic atomization device according to another implementation of this application;
FIG. 11 is another schematic exploded view of an electronic atomization device according to another implementation of this application;
FIG. 12 is a schematic cross-sectional view of an electronic atomization device according to another implementation of this application;
FIG. 13 is another schematic cross-sectional view of an electronic atomization device according to another implementation of this application;
FIG. 14 is still another schematic cross-sectional view of an electronic atomization device according to another implementation of this application;
FIG. 15 is a schematic diagram of an electronic atomization device and a liquid storage component after assembly according to a still another implementation of this application;
FIG. 16 is a schematic diagram of an electronic atomization device and a liquid storage component after assembly according to a still another implementation of this application;
FIG. 17 is a schematic exploded view of an electronic atomization device and a liquid storage component according to still another implementation of this application;
FIG. 18 is a schematic cross-sectional view of FIG. 16; and
FIG. 19 is a schematic cross-sectional view of FIG. 17.

DETAILED DESCRIPTION

For ease of understanding of this application, this application is described below in more detail with reference to drawings and specific implementations. It should be noted that when an element is described to be "fixed to" another element, the element may be directly fixed to the another element, or one or more intermediate elements may exist therebetween. When one element is described to be "connected to" another element, the element may be directly connected to the another element, or one or more intermediate elements may exist therebetween. Terms "upper", "lower", "left", "right", "inner", "outer", and similar expressions used in this specification are for illustrative purposes only.
Unless otherwise defined, meanings of all technical and scientific terms used in this specification are the same as those usually understood by a person skilled in the art of this application. In this specification, terms used in this specification of this application are merely intended to describe the specific implementations, and are not intended to limit this application. A term "and/or" used in this specification includes any or all combinations of one or more related listed items.
As used herein, terms 'upstream' and 'downstream' are used for describing relative positions of components or parts of the components in an electronic atomization device in a direction of an inhalation airflow.
As shown in FIG. 1 to FIG. 4, an electronic atomization device 100 provided in an embodiment of this application includes a first housing assembly 101. The first housing assembly 101 may be composed of a plurality of components, for example, a main housing, a top cover arranged at a top of the main housing, and a bottom cover arranged at a bottom of the main housing. The first housing assembly 101 may also be integrally formed.
The top of the first housing assembly 101 is provided with a suction nozzle 102. The suction nozzle 102 and the first housing assembly 101 may be formed integrally or separately. The suction nozzle 102 is configured for a user to inhale an aerosol generated through atomization.
A first liquid storage cavity 103 for storing a first liquid substrate is formed in the first housing assembly 101. The first liquid substrate may be a liquid containing a tobacco substance containing a volatile tobacco flavor ingredient, and may also be a liquid containing a non-tobacco substance. For example, the liquid substrate may include water, a solvent, ethanol, a plant extract, flavor, a flavoring agent, or a vitamin mixture. The flavor may include menthol, peppermint, spearmint oil, various fruity aroma ingredients, and the like, but is not limited thereto. The flavoring agent may include ingredients that may provide various aromas or flavors to a user. The vitamin mixture may be a substance mixed with at least one of a vitamin A, a vitamin B, a vitamin C, and a vitamin E, but is not limited thereto. In addition, the first liquid substrate may include an aerosol forming agent, such as glycerin and propylene glycol.
Generally, a capacity of the first liquid substrate stored in the first liquid storage cavity 103 ranges from 0.1 ml to 2 ml, such as 0.5 ml, 0.8 ml, 1 ml, or 1.5 ml. It may be understood that the volume of the first liquid storage cavity 103 is slightly greater than a capacity of a stored first liquid substrate. In this way, after storing the first liquid substrate, the first liquid storage cavity 103 may be divided into two parts. As shown in FIG. 5, one part is an air portion A1 above a liquid level A, and the other part is a liquid substrate portion A2 below the liquid level A.
An atomization assembly 104 is further arranged in the first housing assembly 101. The atomization assembly 104 is configured to atomize the liquid substrate to generate the aerosol.
In an example, the atomization assembly 104 includes a liquid transfer unit and a heating element.
The liquid transfer unit can transfer the liquid substrate in the first liquid storage cavity 103 to the heating element. For example, the liquid transfer unit may be cotton fibers, ceramic fibers, glass fibers, or a porous material, such as porous ceramics or porous glass, but is not limited thereto. The liquid transfer unit may be configured as a tubular structure, a plate structure, or another regular or irregular shape.
The heating element is configured to heat and atomize the liquid substrate to generate the aerosol. The heating element may be a metal wire, a conductive trace, a metal plate, a ceramic heater, or the like, but is not limited thereto. In addition, the heating element may be composed of a conductive heating wire such as a nickel-chromium wire. The heating element may be made of a material with a suitable temperature coefficient of resistance, for example, stainless steel 316, titanium, nickel, nickel-chromium alloy, or the like. The heating element may be arranged as a structure wound on the liquid transfer unit. The heating element may be heated through current supply and transfer heat to the liquid substrate in contact with the heating element to heat the liquid substrate, thereby generating the aerosol.
It should be noted that the atomization assembly 104 is not limited to the foregoing implementation. In another example, the heating element may also be a susceptor that can be penetrated by a changing magnetic field to generate heat, or an infrared heater that radiates infrared rays. In another example, the heating element may also be replaced by an ultrasonic atomizer.
The first housing assembly 101 is also provided with an airflow channel 105 to transmit the aerosol generated by the atomization assembly 104 to the suction nozzle 102 for a user to inhale.
In an example, a lower end of the airflow channel 105 is in communication with an air inlet. The air inlet may be arranged at a bottom end of the first housing assembly 101. An upper end of the airflow channel 105 is connected to the suction nozzle 102, namely, being in communication with an air outlet (a dashed arrow in figures shows an airflow direction in a part of the airflow channel 105). The first liquid storage cavity 103 is provided around at least part of the airflow channel 105. The atomization assembly 104 is arranged in the airflow channel 105, or the atomization assembly 104 is constructed as a tubular structure, whose internal hollow part defines a part of the airflow channel 105. The airflow channel 105 is provided with a liquid passing hole to be in communication with the first liquid storage cavity 103 and the atomization assembly 104, so that the liquid substrate in the first liquid storage cavity 103 can be transferred to the atomization assembly 104 and atomized.
A circuit 106 is further arranged in the first housing assembly 101. The circuit 106 may control overall operation of the electronic atomization device 100. In detail, the circuit 106 not only controls an operation of a battery core 107 and the atomization assembly 104, but also controls operation of another element in the electronic atomization device 100. In addition, the circuit 106 may determine, by checking a state of a component of the electronic atomization device 100, whether the electronic atomization device 100 is operable.
The circuit 106 includes at least one controller. The controller may include a logic gate array, or may include a combination of a general-purpose microprocessor and a memory that stores a program executable in the microprocessor. In addition, a person skilled in the art should understand that the circuit 106 may include another type of hardware.
The battery core 107 is configured to provide electric power for operating the electronic atomization device 100. For example, the battery core 107 may provide electric power for the heating element to perform heating, and may provide electric power for operating the circuit 106. In addition, the battery core 107 may provide electric power required to operate another component provided in the electronic atomization device 100.
The battery core 107 may be, but is not limited to, a lithium iron phosphate (LiFePO4) battery. For example, the battery core 107 may be a lithium cobaltate (LiCoO2) battery or a lithium titanate battery. The battery core 107 may be a rechargeable battery or a disposable battery.
It should be noted that only the components related to this embodiment are shown in the figure. A person of ordinary skill in the art should understand that the electronic atomization device 100 may further include other general-purpose components besides the components shown in FIG. 1 to FIG. 4. For example, a puff detector may also be arranged in the first housing assembly 101 and is configured to detect a puffing action of the user and generate a corresponding electrical signal. To be specific, a detection as to whether the electronic atomization device 100 is puffed is performed, so that the circuit 106, for example, the controller, controls an operation of the battery core 107, the heating element, or the like based on the electrical signal. For example, the battery core 107 is controlled to provide electric power to the heating element, to enable the heating element to heat and atomize the liquid substrate. A conventional pressure sensor, differential pressure sensor, airflow sensor, or the like may be used as the puff detector.
It should be further noted that, in the examples of FIG. 1 to FIG. 4, the foregoing components are integrally formed. The electronic atomization device 100 is a general integrated device. In another example, the electronic atomization device includes an atomizer and a power supply assembly detachably connected to the atomizer. The atomizer is also usually referred to as a cartridge. The power supply assembly is also usually referred to as a cigarette holder. The circuit 106, the battery core 107, and the puff detector are located in the power supply assembly. The suction nozzle 102, the first liquid storage cavity 103, and the atomization assembly 104 are located in the atomizer, which is also feasible.
Still referring to FIG. 1 to FIG. 4, a liquid storage component 200 provided by an embodiment of this application includes a second housing assembly 201. The second housing assembly 201 is composed of a body 201a and a top cover 201b. The main body 201a has a tub-shaped structure. The top cover 201b is arranged at a top of the main body 201a.
A second liquid storage cavity 202 for storing a second liquid substrate is formed in the second housing assembly 201. Similar to the first liquid substrate, the second liquid substrate may be a liquid containing a tobacco substance containing a volatile tobacco flavor ingredient, and may also be a liquid containing a non-tobacco substance. For example, the liquid substrate may include water, a solvent, ethanol, a plant extract, flavor, a flavoring agent, or a vitamin mixture. The flavor may include menthol, peppermint, spearmint oil, various fruity aroma ingredients, and the like, but is not limited thereto. The flavoring agent may include ingredients that may provide various aromas or flavors to a user. The vitamin mixture may be a substance mixed with at least one of a vitamin A, a vitamin B, a vitamin C, and a vitamin E, but is not limited thereto. In addition, the second liquid substrate may include an aerosol forming agent, such as glycerin and propylene glycol.
It should be noted that characteristics of the second liquid substrate and the first liquid substrate may be different or the same. For example, compositions of the second liquid substrate and the first liquid substrate are different, or concentrations of the second liquid substrate and the first liquid substrate are different. The second liquid substrate may be a part of a formula, and the first liquid substrate may be another part of the formula. In some examples, the second liquid substrate has the same composition or type as the first liquid substrate, and the second liquid substrate in the second liquid storage cavity 202 is replenished into the first liquid storage cavity 103 as a liquid source, thereby increasing a liquid capacity in the first liquid storage cavity 103.
A volume of the second liquid storage cavity 202 is greater than a volume of the first liquid storage cavity 103. Generally, the capacity of the second liquid substrate stored in the second liquid storage cavity 202 ranges from 2 ml to 10 ml, such as 4 ml, 5 ml, 6 ml, or 8 ml. It may be understood that the volume of the second liquid storage cavity 202 is slightly greater than a capacity of a stored second liquid substrate. In this way, after storing the second liquid substrate, the second liquid storage cavity 202 may be divided into two parts. One part is an air portion above a liquid level, and the other part is a liquid substrate portion below the liquid level. This may be understood with reference to FIG. 5.
The liquid storage component 200 is independent of the electronic atomization device 100. In an example, the liquid storage component 200 is detachably connected to the electronic atomization device 100. To be specific, the second housing assembly 201 is detachably connected to the first housing assembly 101. In an example, the liquid storage component 200 is not detachable from the electronic atomization device 100 after they are connected.
The first housing assembly 101 is provided with a first accommodating cavity 108 for accommodating or containing at least part of the second housing assembly 201. Specifically, a shape of the first accommodating cavity 108 is adapted to a shape of the second housing assembly 201. The first accommodating cavity 108 is a notch groove extending through a part of a left side wall and a part of a top wall of the first housing assembly 101. The second housing assembly 201 may be assembled to or held on the first housing assembly 101 from a left side of the first housing assembly 101. An inner wall of the first accommodating cavity 108 is provided with a snap-fit connecting member 108a. An outer wall of the second housing assembly 201 is provided with a snap-fit connecting member 201c. A snap fit of the second housing assembly 201 and the first housing assembly 101 is implemented through engagement of the snap-fit connecting member 108a and the snap-fit connecting member 201c. It may be understood that a connection manner for the second housing assembly 201 and the first housing assembly 101 is not limited to the above situation.
When the second housing assembly 201 is connected to the first housing assembly 101, the first liquid storage cavity 103 and the second liquid storage cavity 202 are substantially arranged in sequence along a width direction of the electronic atomization device 100. The first liquid storage cavity 103 is arranged near a right end of the electronic atomization device 100, and the second liquid storage cavity 202 is arranged near a left end of the electronic atomization device 100.
When the second housing assembly 201 is connected to the first housing assembly 101, the air portion above the liquid level in the first liquid storage cavity 103 is in communication with the air portion above the liquid level in the second liquid storage cavity 202, and the liquid substrate portion below the liquid level in the first liquid storage cavity 103 is in communication with the liquid substrate portion below the liquid level in the second liquid storage cavity 202.
Specifically, as understood with reference to FIG. 6 and FIG. 7, the first housing assembly 101 further includes a first through hole 109 and a second through hole 110 spaced apart from each other. An end of the first through hole 109 is in communication with the liquid substrate portion below the liquid level in the first liquid storage cavity 103, and the other end of the first through hole 109 extends to a right end of an inner wall of the first accommodating cavity 108. The second through hole 110 is located above the first through hole 109 along a longitudinal direction of the electronic atomization device 100. An end of the second through hole 110 is in communication with the air portion above the liquid level in the first liquid storage cavity 103, and the other end of the second through hole 110 extends to the right end of the inner wall of the first accommodating cavity 108.
The second housing assembly 201 further includes a third through hole 203 and a fourth through hole 204 spaced apart from each other. An end of the third through hole 203 is in communication with the liquid substrate portion below the liquid level in the second liquid storage cavity 202, and the other end of the third through hole 203 protrudes from an outer surface of a right end of the second housing assembly 201. The fourth through hole 204 is located above the third through hole 203 along a longitudinal direction of the electronic atomization device 100. An end of the fourth through hole 204 is in communication with the air portion above the liquid level in the second liquid storage cavity 202, and the other end of the fourth through hole 204 protrudes from the outer surface of the right end of the second housing assembly 201.
When the second housing assembly 201 is connected to the first housing assembly 101, at least part of a wall defining the third through hole 203 extends into the first through hole 109, so that the liquid substrate portion below the liquid level in the first liquid storage cavity 103 is in communication with the liquid substrate portion below the liquid level in the second liquid storage cavity 202. At least part of a wall defining the fourth through hole 204 extends into the second through hole 110, so that the air portion above the liquid level in the first liquid storage cavity 103 is in communication with the air portion above the liquid level in the second liquid storage cavity 202.
In this case, the third through hole 203 and/or the first through hole 109 define a liquid channel (a first channel). An end of the liquid channel is in communication with the liquid substrate portion below the liquid level in the first liquid storage cavity 103, and the other end of the liquid channel is in communication with the liquid substrate portion below the liquid level in the second liquid storage cavity 202. The fourth through hole 204 and/or the second through hole 110 define an air channel (a second channel). An end of the air channel is in communication with the air portion above the liquid level in the first liquid storage cavity 103, and the other end of the air channel is in communication with the air portion above the liquid level in the second liquid storage cavity 202. The air channel can balance air pressures in the first liquid storage cavity 103 and the second liquid storage cavity 202, so that the second liquid substrate stored in the second liquid storage cavity 202 can smoothly flow into the first liquid storage cavity 103 through the liquid channel, so as to replenish a liquid substrate for consumption to the first liquid storage cavity 103 in time.
In a further implementation, as understood with reference to FIG. 4, the third through hole 203 is arranged near a bottom wall of the second housing assembly 201. The bottom wall of the second housing assembly 201 is inclined toward the third through hole 203, or the bottom wall of the second housing assembly 201 has an inclined surface 201a1 inclined to the third through hole 203. In this way, the liquid substrate in the second liquid storage cavity 202 may better flow into the first liquid storage cavity 103 instead of being accumulated in the second liquid storage cavity 202, thereby avoiding a waste of the liquid substrate.
In a further implementation, as understood with reference to FIG. 8, the electronic atomization device 100 further includes a first thin-film member 111 and a second thin-film member 112 that may be pierceable. The first thin-film member 111 is arranged in the first through hole 109, and is arranged close to the other end of the first through hole 109 or the first accommodating cavity 108. The first thin-film member 111 is configured to close the first through hole 109. The second thin-film member 112 is arranged in the second through hole 110, and is arranged close to the other end of the second through hole 110 or the first accommodating cavity 108. The second thin-film member 112 is configured to close the second through hole 110.
The liquid storage component 200 further includes a third thin-film member 205 and a fourth thin-film member 206 that may be pierceable. The third thin-film member 205 is arranged in the third through hole 203, and is arranged close to the other end of the third through hole 203. The third thin-film member 205 is configured to close the third through hole 203. The fourth thin-film member 206 is arranged in the fourth through hole 204, and is arranged close to the other end of the fourth through hole 204. The fourth thin-film member 206 is configured to close the fourth through hole 204.
The first thin-film member 111, the second thin-film member 112, the third thin-film member 205, and the fourth thin-film member 206 are all made of a flexible material, such as a silicone material. For a thickness setting of the thin-film members, on the one hand, closure of the through holes needs to be considered to avoid a liquid substrate leakage, and on the other hand, a consideration is needed that a user can puncture the thin-film members relatively easily.
During actual use, the liquid storage component 200 may be connected to the electronic atomization device 100 at any time before the first liquid substrate in the first liquid storage cavity 103 is completely consumed. Before the liquid storage component 200 is connected to the electronic atomization device 100, namely, before the second housing assembly 201 is connected to the first housing assembly 101, the first thin-film member 111, the second thin-film member 112, the third thin-film member 205, and the fourth thin-film member 206 may be punctured through a single piercing member, and then the second housing assembly 201 is connected to the first housing assembly 101.
In a preferred implementation, as shown in FIG. 8, the electronic atomization device 100 further includes a first piercing member 113 and a second piercing member 114. An end of the first piercing member 113 extends into the first through hole 109 and is arranged close to the first thin-film member 111. The other end of the first piercing member 113 may be fixedly connected to a component in the first housing assembly 101. The end of the first piercing member 113 is in a needle-like or knife-like structure. An end of the second piercing member 114 extends into the second through hole 110 and is arranged close to the second thin-film member 112. The other end of the second piercing member 114 may be fixedly connected to the component in the first housing assembly 101. The end of the second piercing member 114 is in a needle-like or knife-like structure. In this way, when the other end of the third through hole 203 extends into the first through hole 109, the other end of the third through hole 203 presses the first thin-film member 111 to enable it to deform toward the end of the first piercing member 113. When it is continually extended, the first piercing member 113 may puncture the first thin-film member 111 and the third thin-film member 205 in sequence. Similarly, when the other end of the fourth through hole 204 extends into the second through hole 110, the other end of the fourth through hole 204 presses the second thin-film member 112 to enable it to deform toward the end of the second piercing member 114. When it is continually extended, the second piercing member 114 may puncture the second thin-film member 112 and the fourth thin-film member 206 in sequence.
In a further implementation, as understood with reference to FIG. 8, a first seal member is arranged between the first through hole 109 and the third through hole 203, so as to seal a gap between the first through hole 109 and the third through hole 203. A second seal member is arranged between the second through hole 110 and the fourth through hole 204, so as to seal a gap between the second through hole 110 and the fourth through hole 204. The first seal member and the second seal member are both made of a flexible material, such as silica gel.
Specifically, the first seal member includes a second partial seal member 115 and a first partial seal member 207. The second partial seal member 115 is arranged on an inner surface of a wall defining the first through hole 109, and the first partial seal member 207 is arranged on an outer surface of the wall defining the third through hole 203. In a preferred implementation, the second partial seal member 115, for example, a ring-shaped seal member, extends along a circumferential direction of the inner surface of the wall defining the first through hole 109. The first partial seal member 207, for example, the ring-shaped seal member, extends along a circumferential direction of the outer surface of the wall defining the third through hole 203. When the wall defining the third through hole 203 extends into the first through hole 109, the first partial seal member 207 and the second partial seal member 115 press each other to form a good sealing effect. Specifically, the first partial seal member 207 is sandwiched between the second partial seal member 115 and the outer surface of the wall defining the third through hole 203. For example, a ring-shaped first partial seal member 207 is at least partially accommodated in a ring-shaped second partial seal member 115. Similarly, the second seal member includes a fourth partial seal member 116 and a third partial seal member 208. The fourth partial seal member 116 is arranged on an inner surface of a wall defining the second through hole 110, and the third partial seal member 208 is arranged on an outer surface of the wall defining the fourth through hole 204. When the wall defining the fourth through hole 204 extends into the second through hole 110, the third partial seal member 208 and the fourth partial seal member 116 press each other, thereby forming a good sealing effect.
It should be noted that the first partial seal member 207 and the third thin-film member 205 may be formed integrally or separately. Similarly, the third partial seal member 208 and the fourth thin-film member 206, the second partial seal member 115 and the first thin-film member 111, and the fourth partial seal member 116 and the second thin-film member 112 may also be arranged in this way.
It should be noted that the foregoing electronic atomization device 100 and the liquid storage component 200 are independent of each other. Before the electronic atomization device 100 is not connected to the liquid storage component 200 (namely, before the second housing assembly 201 is not connected to the first housing assembly 101), the electronic atomization device 100 may be used alone and puffed, and the atomization assembly 104 only atomizes the first liquid substrate. After the electronic atomization device 100 is connected to the liquid storage component 200 (namely, after the second housing assembly 201 is connected to the first housing assembly 101), the atomization assembly 104 may not only atomize the first liquid substrate, but also atomize the second liquid substrate. A combination of the electronic atomization device 100 and the liquid storage component 200 may also be referred to as an electronic atomization device.
It should be further noted that a plurality of liquid storage components 200 may be provided.
An electronic atomization device provided in another embodiment of this application is described below with reference to FIG. 9 to FIG. 14. In examples in FIG. 9 to FIG. 14, for the same reference numerals as those in the examples in FIG. 1 to FIG. 8, reference may be made to the foregoing content.
Different from the examples in FIG. 1 to FIG. 8, in the examples in FIG. 9 to FIG. 14, before the second housing assembly 201 is not connected to the first housing assembly 101, the electronic atomization device cannot be used or puffed. To be specific, only after the second housing assembly 201 is connected to the first housing assembly 101, the electronic atomization device may be used and puffed. In this case, the atomization assembly 104 may not only atomize the first liquid substrate, but also atomize the second liquid substrate.
Different from the examples in FIG. 1 to FIG. 8, in the examples in FIG. 9 to FIG. 14, a suction nozzle 102' is arranged on the second housing assembly 201.
In the examples in FIG. 1 to FIG. 8, the second housing assembly 201 is not provided with an airflow channel.
Different from the examples in FIG. 1 to FIG. 8, in the examples in FIG. 9 to FIG. 14, an airflow channel includes a first airflow channel 105a and a second airflow channel 105b. The first airflow channel 105a is arranged in the first housing assembly 101, and the second airflow channel 105b is arranged in the second housing assembly 201. When the second housing assembly 201 is connected to the first housing assembly 101, the first airflow channel 105a is in communication with the second airflow channel 105b to transmit an aerosol generated by the atomization assembly 104. The first liquid storage cavity 103 is provided around at least part of the first airflow channel 105a, and the second liquid storage cavity 202 is provided around at least part of the second airflow channel 105b. A lower end of the first airflow channel 105a is in communication with an air inlet (for example, may be arranged on a bottom wall of the first housing assembly 101). The upper end of the first airflow channel 105a is in communication with the lower end of the second airflow channel 105b. For example, the upper end of the first airflow channel 105a may extend into the second airflow channel 105b, and the upper end of the second airflow channel 105b is connected to the suction nozzle 102', namely, in communication with an air outlet.
Different from the examples in FIG. 1 to FIG. 8, in the examples in FIG. 9 to FIG. 14, when the second housing assembly 201 is connected to the first housing assembly 101, the first liquid storage cavity 103 and the second liquid storage cavity 202 are substantially arranged in sequence along a length direction of the electronic atomization device. The first liquid storage cavity 103 is arranged near a bottom end of the electronic atomization device, and the second liquid storage cavity 202 is arranged near a top of the electronic atomization device.
Different from the examples in FIG. 1 to FIG. 8, in the examples in FIG. 9 to FIG. 14, one end of the first through hole 109 is in communication with a liquid substrate portion below a liquid level in the first liquid storage cavity 103, and an other end of the first through hole 109 protrudes from a top wall of the first housing assembly 101. One end of the second through hole 110 is in communication with an air portion above the liquid level in the first liquid storage cavity 103, and an other end of the second through hole 110 protrudes from a top wall of the first housing assembly 101.
Different from the examples in FIG. 1 to FIG. 8, in the examples in FIG. 9 to FIG. 14, one end of the third through hole 203 is in communication with a liquid substrate portion below a liquid level in the second liquid storage cavity 202, and an other end of the third through hole 203 protrudes from a bottom wall of the second housing assembly 201. One end of the fourth through hole 204 is passed through the second liquid storage cavity 202 and is in communication with the air portion above the liquid level in the second liquid storage cavity 202. An other end of the fourth through hole 204 extends to the bottom wall of the second housing assembly 201.
Different from the examples in FIG. 1 to FIG. 8, in the examples in FIG. 9 to FIG. 14, when the second housing assembly 201 is connected to the first housing assembly 101, the other end of the third through hole 203 extends into the first through hole 109, so that the liquid substrate portion below the liquid level in the first liquid storage cavity 103 is in communication with the liquid substrate portion below the liquid level in the second liquid storage cavity 202. The other end of the second through hole 110 extends into the fourth through hole 204, so that the air portion above the liquid level in the first liquid storage cavity 103 is in communication with the air portion above the liquid level in the second liquid storage cavity 202.
Different from the examples in FIG. 1 to FIG. 8, in the examples in FIG. 9 to FIG. 14, two second through holes 110 and two fourth through holes 204 are provided and spaced apart from each other along a thickness direction of the electronic atomization device. Through a plurality of air channels, air pressures in the first liquid storage cavity 103 and the second liquid storage cavity 202 may be better balanced.
Similar to the examples in FIG. 1 to FIG. 8, the first housing assembly 101 is further provided with a first accommodating cavity 108 for accommodating a part of the second housing assembly 201. It may be understood that, in another example, the second housing assembly 201 is provided with a second accommodating cavity for accommodating or containing at least part of the first housing assembly 101, which is also feasible.
It should be noted that other features shown in the examples of FIG. 1 to FIG. 8 are also applicable to the examples of FIG. 9 to FIG. 14, such as the thin-film members, the piercing members, and the seal members shown in the examples of FIG. 1 to FIG. 8.
An electronic atomization device provided in still another embodiment of this application is described below with reference to FIG. 15. In an example in FIG. 15, for the same reference numerals as those in the examples in FIG. 1 to FIG. 8, reference may be made to the foregoing content.
Different from the examples in FIG. 1 to FIG. 8, in the example in FIG. 15, when a second housing assembly 201 is connected to a first housing assembly 101, a second liquid storage cavity 202 is arranged around at least part of a first liquid storage cavity 103. One end of an air channel C is in communication with an air portion above a liquid level in the first liquid storage cavity 103, and an other end of the air channel C is in communication with an air portion above a liquid level in a second liquid storage cavity 202. One end of a liquid channel D is in communication with a liquid substrate portion below the liquid level in the first liquid storage cavity 103, and an other end of the liquid channel D is in communication with a liquid substrate portion below the liquid level in the second liquid storage cavity 202.
An electronic atomization device provided in still another embodiment of this application is described below with reference to FIG. 16 to FIG. 19. In examples in FIG. 16 to FIG. 19, for the same reference numerals as those in the examples in FIG. 1 to FIG. 8, reference may be made to the foregoing content.
Different from the examples in FIG. 1 to FIG. 8, in the examples in FIG. 16 to FIG. 19, a first liquid storage cavity 103, an atomization assembly 104, and an airflow channel 105 are arranged in a first housing assembly 101 of the electronic atomization device. The airflow channel 105 is configured to transmit an aerosol generated by the atomization assembly 104 to a suction nozzle (an upper end of the first housing assembly 101) for a user to inhale. Components such as a circuit, a battery core, and a puff detector are not arranged in the first housing assembly 101. Therefore, the electronic atomization device shown in FIG. 16 to FIG. 19 may also be referred to as an atomizer, a cartridge, or the like. During use, the electronic atomization device shown in FIG. 16 to FIG. 19 may be combined with a power supply assembly (or a cigarette holder). The power supply assembly (or the cigarette holder) is provided with components, such as the circuit, the battery core, and the puff detector.
Different from the examples in FIG. 1 to FIG. 8, in the examples in FIG. 16 to FIG. 19, a first connecting member 300 is further included. One end of the first connecting member 300 is detachably connected to the first housing assembly 101. An other end of the first connecting member 300 is detachably connected to a second housing assembly 201. When the first connecting member 300 is connected to the first housing assembly 101 and the second housing assembly 201, the first liquid storage cavity 103 may be in communication with a second liquid storage cavity 202.
Specifically, the first connecting member 300 may be constructed as a tubular structure, and two ends thereof may be in a needle-like structure or a knife-like structure. A length of the first connecting member 300 is not limited, and may be properly longer. The one end of the first connecting member 300 may extend into a first through hole 109, so as to be in communication with the first through hole 109, namely, in communication with a liquid substrate portion below a liquid level in the first liquid storage cavity 103. The other end of the first connecting member 300 may extend into a third through hole 203, so as to be in communication with the third through hole 203, namely, in communication with a liquid substrate portion below a liquid level in the second liquid storage cavity 202. An inner hollow part of the first connecting member 300 also defines a part of a liquid channel (a first channel).
It may be understood that, in another example, one end of the first through hole 109 extends into the first connecting member 300 (namely, the one end of the first connecting member 300 is arranged around at least part of the first through hole 109), and one end of the third through hole 203 extends into the first connecting member 300 (namely, an other end of the first connecting member 300 is arranged around at least part of the third through hole 203). This is also feasible.
It should be noted that, in the examples in FIG. 16 to FIG. 19, only the first through hole 109 and the third through hole 203 are provided. In another example, similar to the examples in FIG. 1 to FIG. 8, a second through hole 110 and a fourth through hole 204 may be further provided, and a second connecting member is further included. One end of the second connecting member may extend into the second through hole 110, so as to be in communication with the second through hole 110, namely, in communication with an air portion above the liquid level in the first liquid storage cavity 103. An other end of the second connecting member may extend into the fourth through hole 204, to be in communication with the fourth through hole 204, namely, in communication with an air portion above the liquid level in the second liquid storage cavity 202. An inner hollow part of the second connecting member also defines a part of an air channel (a second channel).
In another example, one end of the second through hole 110 extends into the second connecting member (namely, the one end of the second connecting member is arranged around at least part of the second through hole 110), and one end of the fourth through hole 204 extends into the second connecting member (namely, the other end of the second connecting member is arranged around at least part of the fourth through hole 204). This is also feasible.
Similar to the examples in FIG. 1 to FIG. 8, in the examples in FIG. 16 to FIG. 19, a first partial seal member 207, a third thin-film member 205, a second partial seal member 115, and a first thin-film member 111 are further arranged. During use, the third thin-film member 205 and the first thin-film member 111 may be punctured through the first connecting member 300, and sealing between the first partial seal member 207 (or the second partial seal member 115) and the first connecting member 300 is formed.
Different from the examples in FIG. 1 to FIG. 8, in the examples in FIG. 16 to FIG. 19, a limiting member 209 is further included. The limiting member 209 is arranged in the second housing assembly 201. The limiting member 209 may be a baffle arranged in the second housing assembly 201. In this way, when the other end of the first connecting member 300 extends into the third through hole 203, the limiting member 209 can limit the other end of the first connecting member 300, so that on the one hand, the first connecting member 300 may be prevented from being completely inserted into the second housing assembly 201, and on the other hand, it may be enabled that a user can determine in-place insertion. It may be understood that the limiting member may also be arranged in the first housing assembly 101, or may be arranged in both the first housing assembly 101 and the second housing assembly 201.
It should be noted that the first connecting member 300 and associated features thereof in the examples of FIG. 16 to FIG. 19 are also applicable to the examples of FIG. 1 to FIG. 8, or the examples of FIG. 9 to FIG. 14.
It should be noted that the specification of this application and the drawings thereof illustrate preferred embodiments of this application. However, this application may be implemented in different forms and is not limited to the embodiments described in this specification. These embodiments are not intended to be an additional limitation on the content of this application, and are provided for the purpose of providing a more thorough and comprehensive understanding of the content disclosed in this application. In addition, the foregoing technical features are further combined with each other to form various embodiments not listed above, which are all deemed to be within the scope of the description of this application. Further, a person of ordinary skill in the art may make improvements or modifications according to the above descriptions, and all of the improvements and modifications shall fall within the protection scope of the appended claims of this application.

Claims

An electronic atomization device, comprising:
a first housing assembly, wherein a first liquid storage cavity for storing a first liquid substrate is formed in the first housing assembly;

an atomization assembly, arranged in the first housing assembly, wherein the atomization assembly is configured to atomize the first liquid substrate to generate an aerosol; and

a second housing assembly independent of the first housing assembly, wherein a second liquid storage cavity for storing a second liquid substrate is formed in the second housing assembly,

wherein:
the first housing assembly is configured to be connected to the second housing assembly, and a first channel and a second channel are allowed to be established simultaneously between the first housing assembly and the second housing assembly, wherein the first channel is configured to bring a liquid substrate portion in the first liquid storage cavity into communication with a liquid substrate portion in the second liquid storage cavity, and the second channel is configured to bring an air portion in the first liquid storage cavity into communication with an air portion in the second liquid storage cavity.
The electronic atomization device according to claim 1, wherein:
the first housing assembly is provided with a first accommodating cavity for accommodating at least part of the second housing assembly; or

the second housing assembly is provided with a second accommodating cavity for accommodating at least part of the first housing assembly.
The electronic atomization device according to claim 1, wherein when the first housing assembly is connected to the second housing assembly, the first liquid storage cavity and the second liquid storage cavity are arranged in sequence along a width direction of the electronic atomization device, or the first liquid storage cavity and the second liquid storage cavity are arranged in sequence along a length direction of the electronic atomization device.
The electronic atomization device according to claim 1, wherein a volume of the first liquid storage cavity is less than a volume of the second liquid storage cavity.
The electronic atomization device according to claim 4, wherein a capacity of the first liquid substrate stored in the first liquid storage cavity ranges from 0.1 ml to 2 ml, and a capacity of the second liquid substrate stored in the second liquid storage cavity ranges from 2 ml to 10 ml.
The electronic atomization device according to claim 1, wherein a first airflow channel is provided in the first housing assembly, and a second airflow channel is provided in the second housing assembly ,
wherein when the first housing assembly is connected to the second housing assembly, the first airflow channel is in communication with the second airflow channel, to transmit the aerosol generated by the atomization assembly.
The electronic atomization device according to claim 6, wherein the first liquid storage cavity is provided around at least part of the first airflow channel, and the second liquid storage cavity is provided around at least part of the second airflow channel.
The electronic atomization device according to claim 6, wherein one end of the first airflow channel is in communication with an air inlet, an other end of the first airflow channel is in communication with one end of the second airflow channel, and an other end of the second airflow channel is in communication with an air outlet.
The electronic atomization device according to claim 1, wherein an airflow channel is provided in the first housing assembly to transmit the aerosol generated by the atomization assembly, and the airflow channel is not provided in the second housing assembly.
The electronic atomization device according to claim 1, wherein:
a first through hole is provided on the first housing assembly, the first through hole being in communication with the liquid substrate portion in the first liquid storage cavity; and

a third through hole is provided on the second housing assembly, the third through hole being in communication with the liquid substrate portion in the second liquid storage cavity,

wherein the first through hole and the third through hole define at least part of the first channel.
The electronic atomization device according to claim 10, further comprising a first connecting member, wherein one end of the first connecting member is in communication with the first through hole, and an other end of the first connecting member is in communication with the third through hole.
The electronic atomization device according to claim 11, wherein the one end of the first connecting member is arranged around at least part of the first through hole or extends into the first through hole, and the other end of the first connecting member is arranged around at least part of the third through hole or extends into the third through hole.
The electronic atomization device according to claim 10, wherein at least part of a wall defining the third through hole extends into the first through hole, or at least part of a wall defining the first through hole extends into the third through hole.
The electronic atomization device according to claim 13, wherein a first seal member is arranged between the third through hole and the first through hole, so as to seal a gap between the third through hole and the first through hole.
The electronic atomization device according to claim 14, wherein the first seal member comprises a first partial seal member and a second partial seal member, wherein:
the first partial seal member is arranged on an outer surface of the wall defining the third through hole, and the second partial seal member is arranged on an inner surface of the wall defining the first through hole, wherein when at least part of the wall defining the third through hole extends into the first through hole, the first partial seal member is sandwiched between the second partial seal member and the outer surface of the wall defining the third through hole; or

the first partial seal member is arranged on an outer surface of the wall defining the first through hole, and the second partial seal member is arranged on an inner surface of the wall defining the third through hole, wherein when at least part of the wall defining the first through hole extends into the third through hole, the first partial seal member is sandwiched between the second partial seal member and the outer surface of the wall defining the first through hole.
The electronic atomization device according to claim 1, wherein:
a second through hole is provided on the first housing assembly, the second through hole being in communication with the air portion in the first liquid storage cavity; and

a fourth through hole is provided on the second housing assembly, the fourth through hole being in communication with the air portion in the second liquid storage cavity,

wherein the second through hole and the fourth through hole define at least part of the second channel.
The electronic atomization device according to claim 16, further comprising a second connecting member, wherein one end of the second connecting member is in communication with the second through hole, and an other end of the second connecting member is in communication with the fourth through hole.
The electronic atomization device according to claim 17, wherein the one end of the second connecting member is arranged around at least part of the second through hole or extends into the second through hole, and the other end of the second connecting member is arranged around at least part of the fourth through hole or extends into the fourth through hole.
The electronic atomization device according to claim 16, wherein at least part of a wall defining the fourth through hole extends into the second through hole, or at least part of a wall defining the second through hole extends into the fourth through hole.
The electronic atomization device according to claim 19, wherein a second seal member is arranged between the fourth through hole and the second through hole, so as to seal a gap between the fourth through hole and the second through hole.
The electronic atomization device according to claim 20, wherein the second seal member comprises a third partial seal member and a fourth partial seal member, wherein:
the third partial seal member is arranged on an outer surface of the wall defining the fourth through hole, and the fourth partial seal member is arranged on an inner surface of the wall defining the second through hole, wherein when at least part of the wall defining the fourth through hole extends into the second through hole, the third partial seal member is sandwiched between the fourth partial seal member and the outer surface of the wall defining the fourth through hole; or

the third partial seal member is arranged on an outer surface of the wall defining the second through hole, and the fourth partial seal member is arranged on an inner surface of the wall defining the fourth through hole, wherein when at least part of the wall defining the second through hole extends into the fourth through hole, the third partial seal member is sandwiched between the fourth partial seal member and the outer surface of the wall defining the second through hole.
The electronic atomization device according to claim 1, wherein:
the first housing assembly is provided with a first through hole and a second through hole spaced apart from each other, wherein the second through hole is located above the first through hole along a longitudinal direction of the electronic atomization device; and

the second housing assembly is provided with a third through hole and a fourth through hole spaced apart from each other, wherein the fourth through hole is located above the third through hole along the longitudinal direction of the electronic atomization device,

wherein the first through hole and the third through hole define the first channel, and the second through hole and the fourth through hole define the second channel.
The electronic atomization device according to claim 1, wherein the first housing assembly is provided with a first accommodating cavity for accommodating at least part of the second housing assembly, wherein the first accommodating cavity is a notch groove extending through a part of a left side wall and a part of a top wall of the first housing assembly, and the second housing assembly is configured to be assembled to or held on the housing assembly from a left side of the first housing assembly.
An electronic atomization device, comprising:
a first housing assembly, wherein a first liquid storage cavity for storing a first liquid substrate is formed in the first housing assembly;

an atomization assembly, arranged in the first housing assembly, wherein the atomization assembly is configured to atomize the first liquid substrate to generate an aerosol; and

a first through hole, provided on the first housing assembly and configured for being in communication with a liquid substrate portion below a liquid level in the first liquid storage cavity;

a second through hole, provided on the first housing assembly and spaced apart from the first through hole, and configured to be in communication with an air portion above the liquid level in the first liquid storage cavity;

a first thin-film member, arranged in the first through hole to close the first through hole; and

a second thin-film member, arranged in the second through hole to close the second through hole, wherein

the first thin-film member and the second thin-film member are both pierceable.
A liquid storage component, comprising a second housing assembly, wherein:
a second liquid storage cavity for storing a second liquid substrate is formed in the second housing assembly; and

the second housing assembly is provided with a third through hole and a fourth through hole spaced apart from each other, wherein the third through hole and the fourth through hole are both in communication with the second liquid storage cavity, and the fourth through hole is located above the third through hole along a longitudinal direction of the electronic atomization device.