WO2025195261A1 - Electronic atomization device and second body - Google Patents

Abstract

The present application provides an electronic atomization device and a second body. The electronic atomization device comprises: a first body and a second body, wherein the first body comprises a first liquid storage cavity, the second body comprises a second liquid storage cavity, and when the first body is coupled to the second body, a liquid matrix in the first liquid storage cavity can be supplied into the second liquid storage cavity; an atomization assembly, configured to receive the liquid matrix in the second liquid storage cavity and atomize same to generate aerosol; an airflow channel, configured to allow air to pass through the electronic atomization device during puffing; and a ventilation channel, configured to provide air communication between the second liquid storage cavity and the airflow channel to regulate the pressure within the second liquid storage cavity. According to the electronic atomization device above, when the liquid matrix in the first body is excessively supplied into the second liquid storage cavity, causing the pressure in the second liquid storage cavity to exceed a preset threshold, or when depletion of the liquid matrix in the second liquid storage cavity causes the negative pressure in the second liquid storage cavity to exceed a preset threshold, the ventilation channel can relieve or adjust the pressure in the second liquid storage cavity.

Description

Electronic atomization device and second body

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to the Chinese patent application filed with the China Patent Office on March 22, 2024, with application number 202410345622.1, entitled “Electronic Atomization Device and Second Entity”, the entire contents of which are incorporated herein by reference.

Technical Field

The embodiments of the present application relate to the field of electronic atomization technology, and in particular to an electronic atomization device and a second body.

Background Art

Smoking articles (eg, cigarettes, cigars, etc.) burn tobacco during use to produce tobacco smoke. Attempts have been made to replace these tobacco-burning articles by creating products that release compounds without combustion.

An example of such a product is a heating device that releases a compound by heating rather than burning a material. For example, the material may be tobacco or other non-tobacco products that may or may not contain nicotine. As another example, there are aerosol providing products, for example, so-called electronic atomization devices. These devices typically contain a liquid that is heated to vaporize it, thereby producing an inhalable aerosol. The liquid may contain nicotine and/or a fragrance and/or an aerosol-generating substance (e.g., glycerol). Known electronic atomization devices replenish a liquid matrix to a reusable main body through an independently replaceable liquid source.

Application Contents

One embodiment of the present application provides an electronic atomization device, comprising:

A first body and a second body that can exist independently, and the first body can be combined with the second body by user operation;

The first body includes:

a first liquid storage chamber, for storing a liquid matrix;

at least one liquid output connector, configured to output the liquid matrix stored in the first liquid storage chamber;

The second body includes:

a second liquid storage chamber, for storing a liquid matrix;

an atomizing assembly, configured to receive the liquid matrix in the second liquid storage chamber and atomize the liquid matrix to generate an aerosol;

at least one liquid input interface, communicating with the second liquid storage chamber;

When the first body is combined with the second body, the liquid output connector is at least partially inserted into the liquid input interface and defines a capillary channel with the inner surface of the liquid input interface; the capillary channel is configured to absorb and retain the liquid matrix output from the liquid output connector through capillary action, and replenish the absorbed and retained liquid matrix into the second liquid storage chamber when the negative pressure in the second liquid storage chamber exceeds a predetermined threshold.

In some embodiments, when the first body is combined with the second body, the inner surface of the liquid input interface at least partially surrounds the outer surface of the liquid output connector, and the capillary channel is defined by a first distance between the inner surface of the liquid input interface and the outer surface of the liquid output connector.

In some embodiments, when the first body is combined with the second body, a first distance between the inner surface of the liquid input interface and the outer surface of the liquid output connector is between 0.1 and 1.5 mm.

In some embodiments, the liquid output connector has a closed free end, and a liquid outlet for outputting the liquid medium is arranged on the outer surface.

In some embodiments, the diameter or width of the liquid outlet is greater than the first distance.

In some embodiments, the diameter or width of the liquid outlet is between 0.5 and 1.5 mm.

In some embodiments, the liquid output connector is hollow and tubular, and defines a liquid output channel in communication with the first liquid storage chamber.

The inner diameter of the liquid output connector is larger than the diameter or width of the liquid outlet.

In some embodiments, the inner diameter of the liquid output connector is between 1.5 and 3.0 mm.

In some embodiments, at least two liquid outlets are arranged on the liquid output connector;

When at least one of the at least two liquid outlets outputs the liquid medium in the first liquid storage chamber, the other one is configured as an air inlet for allowing air to enter the first liquid storage chamber.

In some embodiments, at least two liquid outlets are arranged on the liquid output connector;

At least two of the liquid outlets are arranged opposite to each other in a radial direction of the liquid outlet connector.

In some embodiments, the second body further comprises:

a liquid retaining element, arranged in the second liquid storage chamber, for absorbing and retaining the liquid matrix in the second liquid storage chamber;

The nebulizing assembly is arranged to draw or receive liquid matrix from the liquid retaining element.

In some embodiments, when the first body is combined with the second body, a second distance is provided between the liquid output connector and the liquid retaining element so that they are non-contact.

In some embodiments, the second distance is between 0.1 mm and 1.5 mm.

In some embodiments, the second body further comprises:

a first end and a second end facing each other in a longitudinal direction; the first body can be coupled to the second body from the first end;

The second liquid storage chamber has a first inner wall close to the first end;

A first spacing space is defined between the liquid retaining element and the first inner wall.

In some embodiments, the second liquid storage chamber further has a second inner wall near the second end; a second spacing space is defined between the liquid retaining element and the second inner wall;

The second compartment and the first compartment are in fluid communication.

In some embodiments, the second liquid storage cavity has an inner sidewall circumferentially surrounding or defining the second liquid storage cavity;

The inner side wall is provided with a plurality of ridges arranged at intervals along the circumferential direction;

The outer surface of the liquid retaining element abuts against the ridge.

In some embodiments, the second body further comprises:

an air flow channel for allowing air to pass through the second body during suction;

The ventilation channel connects the second liquid storage chamber with the air flow channel to adjust the pressure in the second liquid storage chamber.

In some embodiments, the second body further comprises:

a support element, at least partially defining the second liquid storage chamber and the liquid input interface;

A flexible second sealing element is coupled to the supporting element; when the first body is coupled to the second body, the second sealing element is at least partially located between the liquid output connector and the supporting element to provide a seal therebetween.

In some embodiments, the ventilation channel is at least partially defined between the support element and the second sealing element.

In some embodiments, the ventilation channel includes ventilation holes or ventilation grooves formed on the supporting element and/or the second sealing element.

In some embodiments, it is characterized in that the second body further comprises:

a first end and a second end facing away from each other in a longitudinal direction;

a receiving cavity, open at the first end; when the first body is coupled to the second body, at least a portion of the first body is received in the receiving cavity;

The ventilation channel is formed or defined between the receiving cavity and the second liquid storage cavity.

In some embodiments, the second body further comprises:

a tubular element, longitudinally extending through the second liquid storage chamber;

The atomizing assembly is housed in the tubular element and comprises:

a liquid conducting element, located in the tubular element and arranged to receive the liquid medium from the second liquid storage chamber;

a heating element, coupled to the liquid-conducting element, for heating at least a portion of the liquid matrix retained in the liquid-conducting element to generate an aerosol;

The liquid-conducting element and/or the heating element and/or the tubular element at least partially surround or define the airflow channel.

In some embodiments, an air outlet is arranged on the first body;

An air inlet is arranged on the second body;

An air flow channel defines an air flow path from the air inlet via the atomizer assembly to the air outlet to transfer the aerosol to the air outlet; a portion of the air flow channel is defined by the first body, and another portion is defined by the second body.

In some embodiments, the second body further comprises:

a first end and a second end facing away from each other in a longitudinal direction;

a receiving cavity, open at the first end; when the first body is coupled to the second body, at least a portion of the first body is received in the receiving cavity;

A battery cell, used to provide power to the atomization assembly;

The second liquid storage chamber is arranged to be located between the receiving chamber and the battery core.

In some embodiments, the liquid input interface is exposed in the receiving cavity.

In some embodiments, the second body further comprises:

A control circuit board is arranged between the battery core and the second end, and is used to control the battery core to provide power to the atomizer assembly.

In some embodiments, the second body further comprises:

An electrical connection element is arranged between the second liquid storage chamber and the battery core; the atomizer assembly and the control circuit board are both conductively connected to the electrical connection element, and then the electrical connection element establishes a conductive connection between the atomizer assembly and the control circuit board.

In some embodiments, the volume of the first liquid storage chamber is greater than the volume of the second liquid storage chamber;

and/or, the first liquid storage chamber can store 5 to 20 mL of liquid matrix;

And/or, the second liquid storage chamber can store 0.5-3 mL of liquid matrix.

Another embodiment of the present application further provides an electronic atomization device, comprising:

A first body and a second body that can exist independently, and the first body can be combined with the second body by user operation;

The first body includes:

a first liquid storage chamber, for storing a liquid matrix;

at least one liquid output connector, configured to output the liquid matrix stored in the first liquid storage chamber;

The second body includes:

a second liquid storage chamber, for storing a liquid matrix;

an atomizing assembly, configured to receive the liquid matrix in the second liquid storage chamber and atomize the liquid matrix to generate an aerosol;

at least one liquid input interface, communicating with the second liquid storage chamber;

When the first body is coupled to the second body, the liquid output connector is at least partially inserted into the liquid input interface to connect the first liquid storage chamber and the second liquid storage chamber, so that the liquid matrix in the first liquid storage chamber can be replenished into the second liquid storage chamber; when the first body is coupled to the second body, the inner surface of the liquid input interface at least partially surrounds the outer surface of the liquid output connector, and a first distance of 0.1 to 1.5 mm is defined between the inner surface of the liquid input interface and the outer surface of the liquid output connector.

Another embodiment of the present application further provides a first body for an electronic atomization device, comprising:

proximal and distal ends facing each other in the longitudinal direction;

a first liquid storage chamber for storing a liquid matrix; the first liquid storage chamber has an opening toward the distal end;

a closing element, arranged substantially perpendicular to the longitudinal direction of the first body, defining at least a portion of the boundary of the first liquid storage chamber and closing an opening of the first liquid storage chamber;

The closure element is provided with at least one liquid output connector extending toward the distal end; the liquid output connector surrounds or defines a liquid output channel; a liquid outlet is provided on an outer surface of the liquid output connector; the liquid outlet is in fluid communication with the first liquid storage chamber via the liquid output channel, for outputting the liquid matrix in the first liquid storage chamber;

The width or diameter of the liquid outlet is smaller than the inner diameter of the liquid output channel.

Another embodiment of the present application further provides a second body for an electronic atomization device, comprising:

a first end and a second end facing each other in a longitudinal direction;

a receiving cavity, open at the first end, for receiving the first body of the electronic atomization device;

a second liquid storage chamber, for storing a liquid matrix;

an atomizing assembly, configured to receive the liquid matrix from the second liquid storage chamber and atomize the liquid matrix to generate an aerosol;

a battery cell, located between the second liquid storage chamber and the second end, for providing power to the atomizer assembly;

At least one liquid input interface is exposed in the receiving cavity and communicated with the second liquid storage cavity; when the first body of the electronic atomization device is received in the receiving cavity, the liquid matrix can be replenished to the second liquid storage cavity through the liquid input interface.

In some embodiments, the support element is further provided with an injection hole for injecting liquid matrix into the second liquid storage chamber through the injection hole; the injection hole and the liquid input interface are isolated from each other;

A plug is arranged on the second sealing element; when the second sealing element is combined with the supporting element, the plug extends into the injection hole to close or block the injection hole; the second sealing element can also be removed from the supporting element to open the injection hole.

In the above electronic atomization device, during use, the first body replenishes a predetermined amount of liquid matrix into the second body each time according to the user's inhalation.

Another embodiment of the present application further provides an electronic atomization device, comprising:

A first body and a second body that can exist independently, and the first body can be combined with the second body by user operation;

The first body includes:

a first liquid storage chamber, for storing a liquid matrix;

The second body includes:

a second liquid storage chamber for storing a liquid matrix; when the first body is combined with the second body, a channel connecting the first liquid storage chamber and the second liquid storage chamber can be established therebetween, thereby replenishing the liquid matrix in the first liquid storage chamber into the second liquid storage chamber;

an atomizing assembly, configured to receive the liquid matrix in the second liquid storage chamber and atomize the liquid matrix to generate an aerosol;

an air flow channel for allowing air to pass through the electronic atomization device during inhalation;

The ventilation channel connects the second liquid storage chamber with the air flow channel to adjust the pressure in the second liquid storage chamber.

In some embodiments, the ventilation channel is defined on the second body and avoids the first body.

In some embodiments, the airflow channel includes a first channel portion defined or formed by the first body, and a second channel portion defined or formed by the second body;

The ventilation channel is connected between the second liquid storage chamber and the second channel portion.

In some embodiments, the diameter or width of the ventilation channel is between 0.2 and 2.0 mm.

In some embodiments, the second body further comprises:

a first end and a second end facing each other in a longitudinal direction;

a receiving cavity, open at the first end; when the first body is coupled to the second body, at least a portion of the first body is received in the receiving cavity;

The ventilation channel is formed or defined between the receiving cavity and the second liquid storage cavity.

In some embodiments, the second body further comprises:

a support element at least partially defining the second liquid storage chamber;

A flexible second sealing element is coupled to the support element; when the first body is coupled to the second body, the second sealing element is at least partially located between the first body and the support element to provide a seal therebetween.

In some embodiments, the ventilation channel is at least partially defined between the support element and the second sealing element.

In some embodiments, the ventilation channel includes ventilation holes or ventilation grooves formed on the supporting element and/or the second sealing element.

In some embodiments, the second sealing element comprises:

a second ledge at least partially surrounding or defining the airflow channel;

The ventilation channel includes a first ventilation groove axially arranged on the outer surface of the second protrusion, and is communicated with the air flow channel through the first ventilation groove.

In some embodiments, the ventilation channel further comprises:

a vent hole extending from the second liquid storage chamber to the outer surface of the support element;

A second ventilation groove is defined by the supporting element and/or the second sealing element and extends from the ventilation hole to the first ventilation groove along the radial direction of the electronic atomization device.

In some embodiments, the second body further comprises:

a liquid retaining element, arranged in the second liquid storage chamber, for absorbing and retaining the liquid matrix in the second liquid storage chamber;

The nebulizing assembly is arranged to draw or receive liquid matrix from the liquid retaining element.

In some embodiments, the second body further comprises:

a first end and a second end facing each other in a longitudinal direction; the first body can be coupled to the second body from the first end;

The second liquid storage chamber has a first inner wall close to the first end; a first spacing space is defined or formed in the second liquid storage chamber and is located between the liquid retaining element and the first inner wall; the ventilation channel connects the first spacing space and the airflow channel.

In some embodiments, the second liquid storage chamber further has a second inner wall near the second end; a second spacing space is defined between the liquid retaining element and the second inner wall;

The second compartment and the first compartment are in fluid communication.

In some embodiments, the liquid retaining element abuts against a port of the liquid input interface located within the second liquid storage chamber.

In some embodiments, the second liquid storage cavity has an inner sidewall circumferentially surrounding or defining the second liquid storage cavity;

The inner side wall is provided with a plurality of ridges spaced apart along the circumferential direction; the outer surface of the liquid retaining element abuts against the ridges;

The ribs are arranged to extend in the longitudinal direction, and gaps between adjacent ribs form a channel communicating the second compartment and the first compartment.

In some embodiments, the second body further comprises:

a tubular element, longitudinally extending through the second liquid storage chamber;

The atomizing assembly is housed in the tubular element and comprises:

a liquid conducting element, located in the tubular element and arranged to receive the liquid medium from the second liquid storage chamber;

a heating element, coupled to the liquid-conducting element, for heating at least a portion of the liquid matrix retained in the liquid-conducting element to generate an aerosol;

The liquid-conducting element and/or the heating element and/or the tubular element at least partially surround or define the airflow channel.

In some embodiments, the second body further comprises:

A battery cell, used to provide power to the atomizer assembly; the second liquid storage chamber is arranged to be located between the receiving chamber and the battery cell;

A control circuit board is arranged between the battery cell and the second end, and is used to control the battery cell to provide power to the atomizer assembly;

An electrical connection element is arranged between the second liquid storage chamber and the battery core; the atomizer assembly and the control circuit board are both conductively connected to the electrical connection element, and then the electrical connection element establishes a conductive connection between the atomizer assembly and the control circuit board.

In some embodiments, the volume of the first liquid storage chamber is greater than the volume of the second liquid storage chamber;

and/or, the first liquid storage chamber can store 5 to 20 mL of liquid matrix;

And/or, the second liquid storage chamber can store 0.5-3 mL of liquid matrix.

Another embodiment of the present application further provides an electronic atomization device, comprising:

A first body and a second body that can exist independently, and the first body can be combined with the second body by user operation;

The first body includes:

an air outlet and a first air flow channel portion;

The second body includes:

an air inlet and a second air flow channel portion;

a second liquid storage chamber, for storing a liquid matrix;

an atomizing assembly, configured to receive the liquid matrix in the second liquid storage chamber and atomize the liquid matrix to generate an aerosol;

When the first body is combined with the second body, the first airflow channel portion and the second airflow channel portion jointly define an airflow path from the air inlet through the atomizer assembly to the air outlet, so as to deliver the aerosol to the air outlet;

The ventilation channel partially connects the second liquid storage chamber and the second air flow channel to each other to adjust the pressure in the second liquid storage chamber.

Another embodiment of the present application further provides a second body for an electronic atomization device, comprising:

a first end and a second end facing away from each other in a longitudinal direction;

a second liquid storage chamber, for storing a liquid matrix;

an atomizing assembly, configured to receive the liquid matrix from the second liquid storage chamber and atomize the liquid matrix to generate an aerosol;

a receiving chamber, open at the first end for receiving the first body of the electronic atomization device; when the first body of the electronic atomization device is received in the receiving chamber, the second liquid storage chamber can be replenished with liquid matrix;

an air flow channel forming or defining an air flow path through the second body;

The ventilation channel connects the second liquid storage chamber with the air flow channel to adjust the pressure in the second liquid storage chamber.

In the above electronic atomization device, when the liquid matrix of the first body is supersaturatedly replenished into the second liquid storage chamber so that the pressure in the second liquid storage chamber exceeds a predetermined threshold, or when the liquid matrix in the second liquid storage chamber is consumed so that the negative pressure of the second liquid storage chamber exceeds a predetermined threshold, the ventilation channel can relieve or adjust the pressure in the second liquid storage chamber.

BRIEF DESCRIPTION OF THE DRAWINGS

One or more embodiments are exemplarily illustrated by pictures in the corresponding drawings. These exemplifications do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements. Unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

FIG1 is a schematic diagram of an electronic atomization device provided by an embodiment;

FIG2 is a structural schematic diagram of the electronic atomization device in FIG1 from another perspective;

FIG3 is a schematic diagram of a first body and a second body in FIG1 in a separated state from one perspective;

FIG4 is a schematic diagram of the first body and the second body in FIG3 in a separated state from another perspective;

FIG5 is an exploded schematic diagram of the first subject in FIG1 from one perspective;

FIG6 is an exploded schematic diagram of the first body in FIG1 from another perspective;

FIG7 is a cross-sectional schematic diagram of the first body in FIG1 from one viewing angle;

FIG8 is a cross-sectional schematic diagram of the second body in FIG1 from one viewing angle;

FIG9 is a cross-sectional schematic diagram of the second body in FIG8 from another perspective;

FIG10 is a schematic diagram of the atomizing module in FIG9 being assembled before the second housing;

FIG11 is an exploded schematic diagram of a second body in FIG1 from one perspective;

FIG12 is an exploded schematic diagram of the second body in FIG1 from another perspective;

FIG13 is an exploded schematic diagram of a cross-sectional view of the second body in FIG1 ;

FIG14 is a cross-sectional schematic diagram of the electronic atomization device in FIG1 from one perspective;

FIG15 is an enlarged view of portion B1 in FIG14 ;

FIG16 is a schematic structural diagram of the second sealing element in FIG13 from another perspective;

FIG17 is a structural schematic diagram of the support element in FIG13 from another perspective;

FIG18 is a cross-sectional schematic diagram of the support element in FIG17 from another perspective;

FIG19 is a schematic diagram of the liquid injection operation after the second sealing element in FIG4 is removed;

FIG20 is a cross-sectional schematic diagram of the electronic atomization device in FIG1 from another perspective;

FIG21 is an enlarged view of portion B2 in FIG20 ;

FIG22 is a schematic structural diagram of the heating element in FIG13 from another perspective;

FIG23 is an exploded schematic diagram of the bracket, control circuit board and packaging component in FIG13 before assembly from another perspective.

DETAILED DESCRIPTION

In order to facilitate the understanding of the present application, the present application is described in more detail below with reference to the accompanying drawings and specific implementation methods.

The present application proposes an electronic atomization device for atomizing a liquid matrix to generate an aerosol.

1 to 4 show schematic diagrams of an electronic atomization device according to an embodiment. In this embodiment, the electronic atomization device includes a first body 100 and a second body 200. The first body 100 and the second body 200 can both exist independently and can be combined with each other.

In one embodiment, the first body 100 can store more liquid matrix than the second body 200, allowing the second body 200 to be replenished with liquid matrix during use. The second body 200 can store a relatively small amount of liquid matrix and atomize the liquid matrix to generate an aerosol. Before the first body 100 and the second body 200 are combined, they exist independently of each other; and after the first body 100 is combined with the second body 200, they together define a complete electronic atomization device, allowing the user to use or inhale the aerosol.

In some embodiments, when the first body 100 and the second body 200 are separated or exist independently, they cannot be used or inhaled by the user independently. For example, as shown in Figures 1 to 4, the first body 100 at least partially defines a mouthpiece for use or inhalation by the user; the second body 200 can atomize the liquid matrix to produce an aerosol. When the first body 100 is removed or separated from the second body 200, the first body 100 cannot atomize the liquid matrix alone to produce an aerosol, and the second body 200 cannot be inhaled by the user alone. In some embodiments, the first body 100 and the second body 200 can only be used by the user when they are combined to define a complete electronic atomization device, and are recovered as a whole after the liquid matrix inside them is consumed.

Alternatively, in some other embodiments, the second body 200 is used to atomize the liquid matrix to generate an aerosol; the first body 100 is removably coupled to the second body 200; the first body 100 is used as a consumable and can be replaced, and the second body 200 is reusable; when the liquid matrix in the first body 100 is consumed, the user can remove and replace the first body 100 with a new one from the second body 200.

As shown in Figures 1 to 7, the first body 100 includes several components arranged in a first shell 10 (which can be referred to as a shell). The overall design of the first shell 10 can vary, and the type or configuration of the first shell 10 that can define the overall size and shape of the first body 100 can vary. Generally, the first shell 10 can be formed by a single integral shell, or the first shell 10 can be formed by two or more separable bodies. As shown in Figures 1 to 7, the first shell 10 can include one or more reusable components; the first shell 10 has a proximal end 110 and a distal end 120 that are opposite in the longitudinal direction; in use, the proximal end 110 is the end close to the user for suction; the distal end 120 is the end away from the user; in some examples, all or only part of the first shell 10 can be formed of a metal or alloy such as stainless steel, aluminum, or other suitable materials including various plastics (e.g., polycarbonate), metal-plating over plastic, ceramic, etc.

As shown in Figures 1 to 7, the distal end 120 of the first body 100 defined by the first shell 10 is open. Alternatively, in some other embodiments, the distal end 120 of the first body 100 may be provided with a detachable end cap or a tearable or removable sealing film, etc., which seals the distal end 120 of the first body 100 before production, packaging or use.

As shown in FIG. 1 to FIG. 7 , the first housing 10 includes:

The first portion 11 and the second portion 12 are arranged in sequence along the longitudinal direction; when the first body 100 is coupled to the second body 200, the second portion 12 is inserted into or extends into the second body 200, while the first portion 11 is located outside the second body 200. Therefore, during use, the liquid matrix in the first liquid storage chamber 112 of the first portion 11 is visible through the exposed first portion 11 of the first housing 10, which is beneficial for the user to observe the consumption or remaining amount of the liquid matrix in the first liquid storage chamber 112.

As shown in Figures 1 to 7 , at least one or more first guide structures 121 are arranged on the outer surface of the second portion 12; correspondingly, at least one or more second guide structures 212 are arranged on the second body 200. When the first body 100 is coupled to the second body 200, the first guide structures 121 and the second guide structures 212 cooperate to provide guidance. As shown in Figures 1 to 7 , the first guide structures 121 comprise ridges located on the outer surface of the second portion 12; the ridges of the first guide structures 121 extend substantially longitudinally. The second guide structures 212 are essentially longitudinally extending guide grooves.

As shown in Figures 1 to 9 , the outer surface of the second portion 12 is further provided with at least one or more first connecting structures 122. Accordingly, the second body 200 is provided with multiple second connecting structures 213. When the first body 100 is coupled to the second body 200, the second portion 12 is inserted into or extends into the second body 200, and the at least one or more first connecting structures 122 and second connecting structures 213 cooperate to connect the first and second bodies 100, 200. In the embodiment shown in Figures 3 to 9 , the first connecting structures 122 are, for example, protrusions, and the second connecting structures 213 are, for example, grooves.

As shown in FIG. 1 to FIG. 7 , the first body 100 further includes:

An air outlet 113 , located at the proximal end 110 , is used for the user to draw air;

an aerosol output tube 111 extending from the air outlet 113 toward the distal end 120 for delivering aerosol to the air outlet 113 ; in an embodiment, the aerosol output tube 111 is integrally molded with the first housing 10 ;

The first liquid storage chamber 112 is used to store a liquid matrix. At least a portion of the first liquid storage chamber 112 is defined between the aerosol output tube 111 and the first housing 10. The first liquid storage chamber 112 is closed on the side near the proximal end 110, and is open on the side facing the distal end 120. During use, the liquid matrix in the first liquid storage chamber 112 exits the distal end 120.

In some embodiments, the first liquid storage chamber 112 is primarily defined between the first portion 11 of the first housing 10 and the aerosol delivery tube 111 , and the first housing 10 is transparent, so that the liquid medium in the first liquid storage chamber 112 is visible through the outer surface of the first portion 11 of the first housing 10 .

As shown in FIG. 1 to FIG. 7 , the first body 100 further includes:

The sealing element 140 is arranged substantially perpendicular to the longitudinal direction of the first body 100. The sealing element 140 is disposed on the side of the first liquid storage chamber 112 facing the distal end 120 and is used to seal the side of the first liquid storage chamber 112 facing the distal end 120. The sealing element 140 defines a liquid output channel 143 for providing a channel path for the liquid medium in the first liquid storage chamber 112 to exit or be output. After assembly, the liquid medium in the first liquid storage chamber 112 can only be output or exit through the liquid output channel 143 of the sealing element 140. The sealing element 140 is rigid, for example, made of a rigid polymer plastic.

As shown in Figures 1 to 7, the liquid output channel 143 basically extends along the longitudinal direction of the first body 100; and the liquid output channel 143 includes a first section 1431 and a second section 1432 arranged in sequence; wherein the first section 1431 is close to and connected to the first liquid storage chamber 112.

In an embodiment, the cross-sectional area or diameter of the first section 1431 is greater than the cross-sectional area or diameter of the second section 1432. For example, in some specific embodiments, the diameter of the first section 1431 is 2.5-4.0 mm, and the diameter of the second section 1432 is 1.5-3.0 mm.

As shown in Figures 1 to 7 , the closure element 140 is arranged in a substantially annular shape. A first flange 141 extends from the closure element 140 toward the proximal end 110. The first flange 141 surrounds and defines a first section 1431 of the liquid delivery channel 143. The first flange 141 also surrounds and defines a first tracheal insertion hole 142. During assembly, the aerosol delivery tube 111 passes through the first tracheal insertion hole 142 of the closure element 140. After passing through the closure element 140, the aerosol delivery tube 111 is at least partially located between the closure element 140 and the distal end 120.

As shown in FIG. 1 to FIG. 7 , a cavity 150 is defined between the sealing element 140 and the distal end 120 ; the aerosol output tube 111 at least partially penetrates the sealing element 140 and then extends into the cavity 150 .

As shown in Figures 1 to 7 , the closure element 140 includes at least one or more liquid outlet connectors 144 extending toward the distal end 120. The at least one or more liquid outlet connectors 144 are substantially located within the cavity 150. The liquid outlet connectors 144 are hollow, tubular, and their interior surrounds or defines the second section 1432 of the liquid outlet channel 143. When the first body 100 is coupled to the second body 200, the liquid outlet connectors 144 are inserted into or extend into the liquid input port 322 of the second body 200, allowing the liquid medium within the first liquid reservoir 112 to be replenished in the second body 200. In some embodiments, the axial length of the liquid outlet connectors 144 and/or the second section 1432 of the liquid outlet channel 143 is between 4 and 8 mm. For example, in one specific embodiment, the axial length of the second section 1432 of the liquid outlet channel 143 is 4.8 mm. The inner diameter of the liquid outlet connector 144, which corresponds to the diameter of the second section 1432, is between 1.5 and 3.0 mm.

As shown in Figures 1 to 7 , the liquid outlet connector 144 has a free end facing the distal end 120; the free end of the liquid outlet connector 144 facing the distal end 120 is closed. A liquid outlet 145 is arranged on the sidewall of the liquid outlet connector 144 to allow the liquid matrix to flow out. In some embodiments, the diameter or width of the liquid outlet 145 can limit the large-scale outflow of the liquid matrix and only allow the liquid matrix to flow out at a predetermined rate. In specific embodiments, the diameter or width of the liquid outlet 145 is between 0.5 and 1.5 mm; in more specific embodiments, the diameter or width of the liquid outlet 145 is 0.8 mm. The liquid outlet 145 is arranged near the free end of the liquid outlet connector 144.

As shown in Figures 1 to 7 , the inner surface of the aerosol delivery tube 111 is provided with at least one or more capillary grooves 114. The capillary grooves 114 extend longitudinally and have a width and/or depth of approximately 0.2 to 1.0 mm. Furthermore, during use, as the aerosol is delivered from the aerosol delivery tube 111 toward the air outlet 113, the capillary grooves 114 can absorb and retain aerosol condensate on the inner surface of the aerosol delivery tube 111 through capillary action, which is beneficial for preventing the aerosol condensate from being inhaled by the user.

As shown in FIG. 1 to FIG. 7 , the first body 100 further includes:

The flexible first sealing element 130 is at least partially installed or arranged between the first housing 10/aerosol output tube 111 and the closure element 140 to provide a seal therebetween. The first sealing element 130 is made of, for example, flexible silicone, thermoplastic elastomer, or the like.

Specifically, the first sealing element 130 is provided with a first avoidance hole 131 and a second avoidance hole 132. During assembly, the first avoidance hole 131 opposes the first tracheal insertion hole 142 of the sealing element 140, allowing the aerosol delivery tube 111 to pass through the first avoidance hole 131 and be assembled with the first tracheal insertion hole 142. Furthermore, the second avoidance hole 132 opposes the liquid delivery channel 143 of the sealing element 140, allowing the liquid matrix in the first liquid storage chamber 112 to enter the liquid delivery channel 143 through the second avoidance hole 132.

1 to 7 , the flexible first sealing element 130 is substantially in the shape of a sheet arranged perpendicular to the longitudinal direction of the first body 100 ; and the first sealing element 130 at least partially surrounds or encloses the closing element 140 .

As shown in FIG8 to FIG21, the second body 200 includes:

A first end 210 and a second end 220 facing each other in the longitudinal direction;

The second housing 20 extends between a first end 210 and a second end 220 .

The second housing 20 is open at the first end 210 of the second body 200, thereby defining a receiving cavity 211 in the second body 200 at the first end 210. When the first body 100 is coupled to the second body 200, the receiving cavity 211 is configured to receive a portion of the first body 100; specifically, the second portion 12 of the first housing 10 is inserted into or received in the receiving cavity 211.

As shown in FIG8 to FIG21, the second body 200 further includes:

The atomization module 300 includes a plurality of functional components that collectively define the atomization of the liquid matrix; the atomization module is located in the second housing 20 and is adjacent to or defines the receiving cavity 211;

The battery core 240 is used for power supply; after assembly, the battery core 240 is located between the atomization module and the second end 220;

The control circuit board 260 is located between the battery cell 240 and the second end 220. The control circuit board 260 is basically arranged perpendicular to the longitudinal direction of the second body 200. The control circuit board 260 is arranged with a circuit for controlling the battery cell 240 to provide power to the atomization module.

As shown in FIG8 to FIG21, the atomization module 300 includes:

The support element 320 is used to accommodate, support or hold various functional components for atomizing the liquid matrix; the support element 320 is configured to be cylindrical;

The tubular element 340 is accommodated or retained in the support element 320; the tubular element 340 is arranged along the longitudinal extension of the support element 320;

The second liquid storage cavity 328 is defined by a portion of the space between the support element 320 and the tubular element 340; alternatively, the second liquid storage cavity 328 is defined by a hollow portion of the support element 320; the second liquid storage cavity 328 is located within the support element 320; the second liquid storage cavity 328 forms a liquid matrix storage space within the second body 200 for storing the liquid matrix;

The liquid retaining element 330 is made of a flexible or rigid porous material or a fiber material and is used to absorb and retain the liquid matrix stored in the second liquid storage chamber 328; the liquid retaining element 330 and/or the second liquid storage chamber 328 are substantially annular in shape;

The atomization assembly is located in the tubular element 340 and is fluidically connected to the liquid retaining element 330 and/or the second liquid storage chamber 328, so as to be used to absorb the liquid matrix and atomize it to generate an aerosol; as shown in Figures 8 to 21, the atomization assembly includes: a liquid guiding element 350 and a heating element 360 combined with the liquid guiding element 350.

In the above embodiments, the components of the liquid matrix atomization function are integrally designed into a modular module, which is beneficial for the preparation or assembly of the functional modules of the second body 200 .

In some embodiments, support member 320 and/or tubular member 340 are made of rigid ceramic, stainless steel, polymer plastic, or the like.

In some embodiments, the liquid retaining element 330 may be made of a rigid porous material such as porous ceramics or porous glass, or may be made of a flexible porous fiber such as porous cotton fiber, porous non-woven fabric or porous sponge.

In some embodiments, the liquid-conducting element 350 is flexible, for example, made of flexible fibers such as cotton fibers, non-woven fabrics, or sponges. The liquid-conducting element 350 is configured to be tubular or cylindrical and arranged along the longitudinal direction of the support element 320. The liquid-conducting element 350 is coaxial with the liquid-retaining element 330 and/or the tubular element 340 and is located within the liquid-retaining element 330 and/or the tubular element 340. Alternatively, in other variations, the liquid-conducting element 350 may also include a rigid porous element, such as porous ceramic or porous glass. The outer surface of the liquid-conducting element 350 is in fluid communication with the liquid-retaining element 330 and/or the second liquid storage chamber 328, and the outer surface of the liquid-conducting element 350 is used to draw liquid matrix from the liquid-retaining element 330 and/or the second liquid storage chamber 328, as indicated by arrow R11 in Figures 20 and 21.

In some embodiments, the liquid-conducting element 350 is surrounded and retained by the liquid-retaining element 330, and is in contact with the liquid-retaining element 330 to establish fluid communication therewith. Alternatively, in other embodiments, the liquid-conducting element 350 is retained within a tubular element 340, which is provided with a plurality of perforations 341; the liquid-conducting element 350 draws liquid matrix from the liquid-retaining element 330 and/or the second liquid storage chamber 328 through the perforations 341 on the tubular element 340.

In some embodiments, the inner surface of the liquid-guiding element 350 in the radial direction is configured as an atomizing surface, and the atomizing surface is combined/fitted/abutted against the heating element 360; and then after the liquid matrix is transferred to the atomizing surface, it is heated and atomized by the heating element 360 to generate an aerosol and release it. Referring to Figures 8 to 21, the heating element 360 is arranged to extend longitudinally along the liquid-guiding element 350, and the heating element 360 is coaxially arranged with the liquid-guiding element 350. In some optional embodiments, the heating element 360 is a resistive heating mesh, a resistive heating coil, etc. In this embodiment, the heating element 360 is a heating element wound by a sheet-like or mesh-like substrate. Conductive pins are welded or arranged on the heating element 360 to guide current on the heating element 360.

In some other variations, the heating element 360 may be coupled to the liquid-conducting element 350 by printing, deposition, sintering, or physical assembly. In some other variations, the liquid-conducting element 350 may have a plane or a curved surface for supporting the heating element 360, and the heating element 360 may be formed on the plane or the curved surface of the liquid-conducting element 350 by mounting, printing, deposition, or the like. Or in some other variations, the heating element 360 is a conductive track formed on the surface of the liquid-conducting element 350. In some other variations, the conductive track of the heating element 360 may be in the form of a printed circuit formed by printing. In some other variations, the heating element 360 is a patterned conductive track. In some other variations, the heating element 360 is planar. In some other variations, the heating element 360 is a conductive track that extends in a circuitous, meandering, reciprocating, or bending manner.

As shown in Figures 8 to 21 , the support member 320 is closed on the side facing the first end 210 and open on the side facing the second end 220. After assembly, a receiving cavity 211 for receiving a portion of the first body 100 is defined between the support member 320 and the first end 210 of the second housing 20.

As shown in Figures 8-10 , the support element 320 is securely connected to the second housing 20 by riveting, snapping, or other means. A sealing ring 317 , such as an O-ring, is disposed between the support element 320 and the second housing 20, surrounding the support element 320 to provide a seal therebetween. In some specific embodiments, a mounting groove circumferentially surrounding the support element 320 is disposed on the outer surface of the support element 320; the sealing ring 317 , such as an O-ring, is mounted or retained within the mounting groove.

As shown in Figures 8 to 10 , an insertion gap 214 is defined between the support element 320 and the second housing 20. The insertion gap 214 is connected to the receiving cavity 211. When the first body 100 is coupled to the second body 200, the second portion 12 of the first housing 10 of the first body 100 passes through the receiving cavity 211 and extends into the insertion gap 214. Furthermore, when the first body 100 is coupled to the second body 200, at least a portion of the atomizer module 300 and/or the support element 320 extends into or is accommodated within the cavity 150 of the first body 100.

As shown in FIG8 to FIG21 , the atomization module 300 further includes:

A flexible second sealing element 310 is at least partially exposed within the receiving cavity 211. The second sealing element 310 is at least partially housed and retained within the support element 320. The second sealing element 310 is made of a flexible material, such as silicone or a thermoplastic elastomer. When the first body 100 is received or coupled to the second body 200, the second sealing element 310 connects to the aerosol delivery tube 111 and provides a seal between the support element 320 and the aerosol delivery tube 111. Furthermore, when the first body 100 is received or coupled to the second body 200, the second sealing element 310 connects to the liquid delivery connector 144 of the closure element 140 and provides a seal between the support element 320 and the liquid delivery connector 144.

17 and 18 , a first accommodating cavity 327 is disposed on one side of the support member 320 facing the first end 210 for accommodating and mounting the second sealing member 310. When the second sealing member 310 is accommodated or mounted in the first accommodating cavity 327, the surface of the second sealing member 310 is substantially flush with the surface of the support member 320.

As shown in Figures 8 to 21 , the support member 320 is further provided with an injection hole 323 extending from the first accommodating cavity 327 to the second liquid storage cavity 328. The injection hole 323 is used for an injection device, such as a syringe, to inject a liquid matrix into the second liquid storage cavity 328 through the injection hole 323. As shown in Figures 16 to 19 , there are four injection holes 323, which are discretely arranged. Accordingly, the second sealing member 310 is provided with a plurality of plugs 313. When the second sealing member 310 is installed or accommodated in the first accommodating cavity 327 of the support member 320, each of the plurality of plugs 313 extends into each of the injection holes 323, thereby sealing and obstructing the injection holes 323. As shown in Figure 19 , during production, when it is necessary to inject the liquid matrix into the second liquid storage cavity 328, the user can remove the second sealing member 310 from the support member 320, thereby opening and exposing the injection holes 323 for injection. And when the injection operation is completed, the user assembles the second sealing element 310 onto the supporting element 320 to cover and block the injection hole 323 .

As shown in Figures 8 to 21 , the support member 320 is further provided with a connection hole 321. The upper end of the tubular member 340, facing the first end 210, is retained within the connection hole 321 by riveting, interference fit, or other fastening methods. Furthermore, the second sealing member 310 is provided with a second tracheal insertion hole 311, which is opposite the connection hole 321. Accordingly, when the first body 100 is coupled to the second body 200, at least a portion of the aerosol delivery tube 111 of the first body 100 passes through the second tracheal insertion hole 311 of the second sealing member 310 and then extends into the connection hole 321 of the support member 320, forming an airflow connection. Furthermore, when the first body 100 is coupled to the second body 200, at least a portion of the second sealing member 310 elastically seals the aerosol delivery tube 111 and the connection hole 321 of the support member 320.

As shown in Figures 8 to 21 , the support member 320 is also provided with a liquid input port 322, which extends from the first accommodating chamber 327 to the second liquid storage chamber 328. The second sealing member 310 is provided with a third avoidance hole 312, which is opposite to the liquid input port 322. When the second sealing member 310 is accommodated and mounted on the support member 320, the third avoidance hole 312 is opposite to the liquid input port 322, thereby exposing and opening the liquid input port 322.

As shown in FIG8 to FIG21 , the atomization module 300 further includes:

The base 370 is made of a flexible material such as silicone or thermoplastic elastomer. The base 370 is coupled to the opening of the support element 320 toward the second end 220 and is used to close the opening of the support element 320 toward the second end 220 .

As shown in Figures 8 to 21 , the support member 320 has a second accommodating cavity 329 on a second side facing the second end 220. When assembled, the base 370 at least partially extends into or is accommodated within the second accommodating cavity 329, and the base 370 and the support member 320 jointly define a second liquid storage cavity 328. Alternatively, when the base 370 is at least partially assembled and accommodated within the second accommodating cavity 329, the flexible base 370 is at least partially squeezed or compressed, thereby enclosing or sealing the second liquid storage cavity 328 on the second side of the support member 320.

As shown in Figures 8 to 21, the base 370 is substantially annular and has a through-hole 372 extending axially through the base 370. During assembly, the tubular element 340 is at least partially inserted into the through-hole 372 and assembled with the base 370. After assembly, the tubular element 340 penetrates the liquid retaining element 330 and extends from the connecting hole 321 of the support element 320 into the through-hole 372 of the base 370.

As shown in FIG8 to FIG21 , the atomization module 300 further includes:

The electrical connection element 390 is used to provide an electrically conductive connection between the control circuit board 260 and the heating element 360. Specifically, the electrical connection element 390 is in a sheet or plate shape and is arranged perpendicular to the longitudinal direction of the second body 200.

In some embodiments, the electrical connection element 390 comprises a conductive sheet, or comprises a conductive material coated on or bonded to the surface of an electrically insulating substrate. In other specific embodiments, the electrical connection element 390 comprises a circuit board, such as a PCB or FPC. After assembly, the heating element 360 and the control circuit board 260 are simultaneously connected to the electrical connection element 390, thereby establishing a conductive connection between them.

As shown in Figures 8 to 22, the heating element 360 is configured to be cylindrical and extends longitudinally along the liquid-conducting element 350. In this embodiment, the heating element 360 is a heating element wound from a sheet-like or mesh-like substrate; the wound heating element 360 is an open tubular shape in the circumferential direction and has a side opening 366 extending from one end to the other end in the longitudinal direction.

As shown in FIG. 22 , in this embodiment the heating element 360 comprises:

The first heating portion 364 and the second heating portion 365 are arranged at intervals in the longitudinal direction; the first heating portion 364 and the second heating portion 365 are in a mesh shape having meshes;

The first electrode portion 361 extends from one end to the other end of the heating element 360 ; and the first electrode portion 361 is located at a first side of the side opening 366 ;

The second electrode portion 362 and the third electrode portion 363 are arranged at intervals along the longitudinal direction and/or circumferential direction of the heating element 360 ; the second electrode portion 362 and the third electrode portion 363 are located on the second side of the side opening 366 ;

The first electrode portion 361 , the second electrode portion 362 and the third electrode portion 363 are dense; the first heating portion 364 is electrically connected between the first electrode portion 361 and the second electrode portion 362 , and the second heating portion 365 is electrically connected between the first electrode portion 361 and the third electrode portion 363 .

As shown in FIG22 , the heating element 360 further includes:

The first conductive lead 3611 is connected to the first electrode portion 361 by welding or other methods;

The second conductive lead 3621 is connected to the second electrode portion 362 by welding or other methods;

The third conductive lead 3631 is connected to the third electrode portion 363 by welding or other methods.

In terms of electrical connection, the sheet-shaped electrical connection element 390 has opposing upper and lower surfaces. The first, second, and third conductive leads 3611, 3621, and 3631 of the heating element 360 extend through the through-holes 372 of the base 370 and are connected to the upper surface of the electrical connection element 390. The lower surface of the electrical connection element 390 is connected to the control circuit board 260 via soldered conductive leads 263. Therefore, during control, the control circuit board 260 can selectively connect the first, second, and third electrode portions 361, 362, and 363 to the positive and negative terminals of the battery cell 240 in different connection methods, thereby selectively controlling the first and second heating portions 364, 365 to heat individually, or controlling both heating portions 364, 365 to heat simultaneously in series or in parallel. For example, in a specific embodiment, the control circuit board 260 can control the first heating part 364 and the second heating part 365 to heat in parallel at the same time by electrically connecting the first electrode part 361 to the positive pole of the battery cell 240, and simultaneously electrically connecting the second electrode part 362 and the third electrode part 363 to the negative pole of the battery cell 240.

As shown in FIG8 to FIG22, the atomization module 300 further includes:

Wire separator 380 is mounted or arranged within through-hole 372 of base 370 and positioned between heating element 360 and electrical connection element 390; alternatively, wire separator 380 is mounted or arranged within tubular element 340 and positioned between heating element 360 and electrical connection element 390. Wire separator 380 is annular in shape and has a plurality of circumferentially spaced ridges 381 arranged on its outer surface. During assembly, first conductive lead 3611, second conductive lead 3621, and third conductive lead 3631 are each constrained and isolated within the gaps between the ridges 381, thereby preventing the first conductive lead 3611, second conductive lead 3621, and third conductive lead 3631 from abutting or contacting each other during assembly, thereby preventing short circuits and other problems.

As shown in Figures 8 to 21, a retaining groove 375 is arranged on the surface of the base 370 facing the second end 220. The electrical connection element 390 is installed in the retaining groove 375 and is restricted and retained by the hooks 376 on both sides of the retaining groove 375.

As shown in FIG8 to FIG23, the second body 200 further includes:

The bracket 230 is located between the atomization module 300 and the control circuit board 260. The bracket 230 includes a first supporting portion 231, a second supporting portion 232, and a third supporting portion 233 arranged in sequence along the longitudinal direction.

The first support portion 231 at least partially supports and holds the atomization module 300; specifically, the first support portion 231 is substantially annular and defines a holding cavity 2311; after assembly, the atomization module 300 is at least partially accommodated and installed in the holding cavity 2311;

The second support portion 232 defines a cell chamber 234 between the first support portion 231 and the third support portion 233 , thereby being used to at least partially support and retain the cell 240 ;

The third support portion 233 at least partially supports and holds the control circuit board 260. Specifically, for example, the control circuit board 260 is connected to the third support portion 233 by fasteners such as screws.

As shown in Figures 8 to 23, the control circuit board 260 is further arranged on the surface facing the battery cell 240:

The airflow sensor 290 , such as a microphone sensor or a MEMS sensor, is used to sense changes in airflow flowing through the airflow channel during inhalation. The control circuit board 260 controls the power supply to the heating element 360 based on the sensing result of the airflow sensor 290 .

As shown in FIG8 to FIG23, the control circuit board 260 is further arranged on the surface facing the battery cell 240:

The electrical connection portion 261 is, for example, a pad or solder point disposed on the surface of the control circuit board 260. In one embodiment, the conductive wire 263 is connected to the electrical connection portion 261 by welding or other means, thereby electrically connecting the control circuit board 260 and the electrical connection element 390. Furthermore, the positive and negative tabs of the battery cell 240 are welded to the electrical connection portion 261, thereby connecting the control circuit board 260 and the battery cell 240.

As shown in FIG8 to FIG23, the second body 200 further includes:

A flexible wrapping member 270, for example, made of flexible silicone, is at least partially mounted and positioned between the third support portion 233 of the bracket 230 and the control circuit board 260. A sensor receiving portion 272 is disposed on the wrapping member 270. The sensor receiving portion 272 is primarily used to wrap the airflow sensor 290 and isolate the two opposing sensing surfaces of the airflow sensor 290.

The wrapping element 270 is also provided with a first wire escape hole 271, which is arranged opposite the electrical connection portion 261 on the control circuit board 260. A second wire escape hole 235 is provided on the third support portion 233 of the bracket 230. After assembly, the conductive lead 263 passes through the first wire escape hole 271 and the second wire escape hole 235 before connecting to the electrical connection portion 261.

As shown in Figures 8 to 21, the electronic atomization device also defines an airflow channel that outputs the aerosol generated by the atomization module 300 to the air outlet 113 during inhalation, as shown by arrow R2 in Figures 8 to 21. The airflow channel of the electronic atomization device is partially defined or formed as a first channel portion by the aerosol output tube 111 of the first body 100, and partially defined or formed as a second channel portion by the second body 200; and the airflow channel runs through the atomization module 300. As shown in Figures 8 to 23, the relevant structural contents of the complete airflow channel include:

an air inlet 221 , arranged at the second end 220 of the second housing 20 , for allowing external air to enter the second housing 20 during suction;

The control circuit board 260 is provided with a first air hole 262;

The wrapping element 270 is provided with a second air hole 273;

A third air hole 2331 is arranged on the third supporting portion 233 of the bracket 230;

A central hole 2312 is defined in the first supporting portion 231 of the bracket 230;

A fourth air hole 391 is arranged on the electrical connection element 390 .

The complete airflow path during inhalation is shown by arrow R2 in Figures 8 to 23. The external air entering from the air inlet 221 passes through the first air hole 262 of the control circuit board 260, the second air hole 273 of the wrapping element 270, the third air hole 2331 of the third support part 233 in sequence, and then flows to the middle hole 2312 of the first support part 231 through the gap between the battery cell 240 and the second shell 20, and then passes through the fourth air hole 391 on the electrical connection element 390, the through hole 372 of the base 370 and the wire separation element 380 to be delivered to the heating element 360; then passes through the heating element 360 and carries the aerosol generated by heating, and is output to the air outlet 113 through the connecting hole 321 and the aerosol output tube 111 in sequence to be inhaled by the user.

As shown in Figures 8 to 23, the second end 220 of the second housing 20 is further provided with:

Sensor sensing hole 222 is used to connect the second sensing surface of airflow sensor 290 to the outside atmosphere. Specifically, after assembly, the first sensing surface of airflow sensor 290, facing battery cell 240, is partially covered by sensor accommodating portion 272 of packaging element 270 and connects to the airflow channel via sensing connection hole 274 in sensor accommodating portion 272. The second sensing surface of airflow sensor 290, facing control circuit board 260, connects to the outside atmosphere via air holes in control circuit board 260 and sensor sensing hole 222. Furthermore, airflow sensor 290 determines the user's inhalation based on the difference in pressure sensed between the first and second sensing surfaces.

As shown in FIG8 to FIG23, the second body 200 further includes:

Absorbent element 250 is made of a flexible, porous material, such as cotton fiber or sponge. Absorbent element 250 is at least partially positioned between battery cell 240 and first support portion 231 of bracket 230, and is positioned opposite central hole 2312 in first support portion 231. During use, absorbent element 250 absorbs aerosol condensate that falls from the airflow path toward battery cell 240. Absorbent element 250 may also include multiple wings 251 circumferentially surrounding battery cell 240; these wings 251 absorb aerosol condensate between battery cell 240 and second housing 20.

As shown in Figures 8 to 21 , the inner surface of the support element 320 is provided with a plurality of longitudinally extending ridges 326. The ridges 326 are spaced apart around the circumference of the support element 320. When the liquid retaining element 330 is installed within the support element 320, the outer surface of the liquid retaining element 330 abuts against the ridges 326, thereby defining a plurality of gaps between adjacent ridges 326 between the outer surface of the liquid retaining element 330 and the inner surface of the support element 320.

As shown in Figures 8 to 21, a second flange 3211 is arranged in the support element 320, extending longitudinally from the connecting hole 321 toward the second liquid storage chamber 328. The second flange 3211 is annular and at least partially surrounds and defines the connecting hole 321. A plurality of supporting protrusions 371 are arranged on the surface of the base 370 facing the second liquid storage chamber 328. After assembly, the annular liquid retaining element 330 is longitudinally retained between the support element 320 and the base 370, and specifically, is longitudinally clamped or retained between the second flange 3211 and the supporting protrusions 371. Specifically, after assembly, the upper surface of the liquid retaining element 330 abuts the second flange 3211 and/or the plurality of plugs 313 of the second sealing element 310, and the lower surface abuts the supporting protrusions 371. Furthermore, after assembly, in the longitudinal direction of the atomization module 300, a first partition space 331 is defined between the liquid retaining element 330 and the support element 320; and a second partition space 332 is defined between the liquid retaining element 330 and the base 370. And after assembly, the first partition space 331 and the second partition space 332 are connected through the gap between adjacent ridges 326. Alternatively, the second liquid storage chamber 328 has a first inner wall near the first end 210, and the first inner wall is defined by the support element 320; after assembly, the first partition space 331 is formed between the upper surface of the liquid retaining element 330 and the first inner wall. Alternatively, the second liquid storage chamber 328 has a second inner wall near the first end 210, and the second inner wall is defined by the base 370; after assembly, the second partition space 332 is formed between the lower surface of the liquid retaining element 330 and the second inner wall. Alternatively, the second liquid storage chamber 328 has an inner wall surrounding the second liquid storage chamber 328, which is defined by the inner surface of the second liquid storage chamber 328; the ridges 326 are located on the inner wall of the second liquid storage chamber 328, and the gaps between the ridges 326 on the inner wall provide fluid connection between the first partition space 331 and the second partition space 332.

In some embodiments, the liquid-retaining element 330 is defined by a single porous fiber element. Alternatively, in other variations, the liquid-retaining element 330 includes a first porous fiber material layer and a second porous fiber material layer arranged sequentially along the axial direction. The first porous fiber material layer defines the upper surface of the liquid-retaining element 330, while the second porous fiber material layer defines the lower surface of the liquid-retaining element 330. The first and second porous fiber material layers are stacked one on top of the other to form the liquid-retaining element 330.

In some embodiments, the second porous fiber material layer is made of a flexible capillary fiber material, such as natural cotton fiber, non-woven fabric fiber, etc.

In some embodiments, the first porous fiber material layer includes artificial cotton, or hard artificial cotton or artificial foam made of filamentous polyurethane. For example, the first porous fiber material layer uses 138# hard synthetic organic polymer fiber; for another example, the first porous fiber material layer uses 138# hard synthetic organic polymer fiber with a density of 0.1 to 0.9 mg/ ^mm3 . The first porous fiber material layer is prepared by oriented fibers that are basically oriented along the length direction, width direction or radial direction. The oriented fibers are arranged in the length direction or width direction of the first porous fiber material layer, so that the first porous fiber material layer exhibits a strong bending resistance and thus has the characteristics of being hard. Specifically, for example, the first porous fiber material layer is a hard artificial cotton including oriented polyester fibers, or a hard artificial cotton or artificial foam made of filamentous polyurethane.

As shown in Figures 8 to 21 , after assembly, the upper surface of the liquid retaining element 330 abuts against the end of the liquid input interface 322 defined by the support element 320, thereby preventing or preventing air within the liquid input interface 322 from communicating with the outside air through the first space 331 and the ventilation channel 40. When the liquid matrix within the second liquid storage chamber 328 is consumed, the portion of the liquid retaining element 330 near the end of the liquid input interface 322 becomes free of liquid matrix. The porous pores within this portion provide a channel for transmitting negative pressure between the capillary channel/liquid input interface 322 and the second liquid storage chamber 328, thereby maintaining equilibrium between the capillary channel/liquid input interface 322 and the negative pressure or pressure within the second liquid storage chamber 328.

As shown in Figures 14 and 15, when the first body 100 is combined with the second body 200, the liquid output connector 144 of the closing element 140 of the first body 100 at least partially extends into or penetrates the liquid input interface 322, thereby fluidly connecting the first liquid storage chamber 112 of the first body 100 and the second liquid storage chamber 328 of the second body 200.

As shown in Figures 14 and 15 , when the first body 100 is coupled to the second body 200, the liquid outlet 145 on the liquid output connector 144 of the closure element 140 is located within the liquid input port 322. Furthermore, the outer surface of the liquid output connector 144 does not contact the inner surface of the liquid input port 322, thereby defining a first distance d11 between the outer surface of the liquid output connector 144 and the inner surface of the liquid input port 322. Furthermore, the free end of the liquid output connector 144, inserted into the liquid input port 322, does not contact the liquid retaining element 330 located within the second liquid storage chamber 328, thereby defining a second distance d12 between the liquid output connector 144 and the liquid retaining element 330.

In an embodiment, the first distance d11 and/or the second distance d12 are approximately between 0.1 and 1.5 mm. For example, in a specific embodiment, the first distance d11 and/or the second distance d12 are 0.25 mm. During use, the first distance d11 defines a capillary channel between the liquid output connector 144 and the liquid input interface 322. The capillary channel defined by the first distance d11 absorbs and retains the liquid matrix flowing out of the liquid outlet 145 on the liquid output connector 144, thereby preventing the liquid matrix in the first liquid storage chamber 112 from being replenished in large quantities into the second liquid storage chamber 328.

In use, the capillary channel defined by the first distance d11 can control the replenishment of the liquid matrix in the first liquid storage chamber 112 to the second liquid storage chamber 328 according to a predetermined amount through capillary action, which is beneficial for preventing the second liquid storage chamber 328 from being oversaturated with the liquid matrix.

Specifically, during use, when the amount of liquid matrix absorbed and retained by the liquid retaining element 330 in the second liquid storage chamber 328 is relatively sufficient, the negative pressure or pressure in the second liquid storage chamber 328 and/or the first compartment 331 is lower than a predetermined threshold. At this time, the liquid matrix flowing out of the liquid outlet 145 on the liquid output connector 144 is absorbed and retained in the capillary channel defined by the first distance d11, forming a liquid film to seal the liquid outlet 145, thereby preventing the liquid matrix in the first liquid storage chamber 112 from being replenished in large quantities into the second liquid storage chamber 328. When the liquid matrix absorbed and retained by the liquid retaining element 330 in the second liquid storage chamber 328 and/or the first compartment 331 is consumed, causing the negative pressure in the second liquid storage chamber 328 and/or the first compartment 331 to exceed the predetermined threshold, the liquid matrix retained in the capillary channel defined by the first distance d11, driven by the negative pressure, flows along the inner surface of the liquid input interface 322 and is replenished into the second liquid storage chamber 328, as indicated by arrow R12 in Figures 14 and 15. When a predetermined amount of liquid matrix is added to the second liquid storage chamber 328, causing the negative pressure in the second liquid storage chamber 328 and/or the first compartment 331 to fall below a predetermined threshold, the liquid matrix flowing out of the liquid outlet 145 on the liquid output connector 144 is absorbed by the capillary channel defined by the first distance d11, reaching equilibrium and preventing further replenishment of the liquid matrix into the second liquid storage chamber 328. Furthermore, by maintaining the capillary channel defined by the first distance d11 between the liquid output connector 144 and the liquid input interface 322, the first liquid storage chamber 112 can be controlled to only replenish the predetermined amount of liquid matrix into the second liquid storage chamber 328 at a time as the user draws or uses the liquid.

Alternatively, in some alternative embodiments, the capillary channel defined by the first distance d11 may be replaced by a capillary groove on the outer surface of the liquid output connector 144 and/or the inner surface of the liquid input port 322. In this alternative embodiment, when the liquid output connector 144 is inserted into the liquid input port 322, the outer surface of the liquid output connector 144 may abut against or contact the inner surface of the liquid input port 322, and the capillary groove on the outer surface of the liquid output connector 144 and/or the inner surface of the liquid input port 322 may define a capillary channel therebetween.

Alternatively, in some alternative embodiments, the outer surface of the liquid output connector 144 is provided with a plurality of longitudinally extending ridges, and these ridges are spaced apart circumferentially around the liquid output connector 144. When the liquid output connector 144 is inserted into the liquid input port 322, the gaps between the ridges define a capillary channel between the liquid output connector 144 and the liquid input port 322.

As shown in FIG. 14 and FIG. 15 , the second distance d12 defined between the liquid output connector 144 and the liquid retaining element 330 can prevent the liquid matrix in the capillary channel defined by the first distance d11 from being absorbed by the porous liquid retaining element 330 .

In an embodiment, the diameter of the second section 1432 of the liquid output channel 143 defined within the liquid output connector 144 is greater than the diameter of the liquid outlet 145 on the sidewall of the liquid output connector 144. Furthermore, the diameter of the liquid outlet 145 is greater than the first distance d11. This configuration gradually reduces the channel area during the outflow of the liquid matrix, which is advantageous for gradually reducing the flow rate and increasing the liquid lock to achieve a predetermined amount of liquid matrix supply.

As shown in Figures 3 to 15 , the first body 100 may have multiple liquid output connectors 144; for example, in one embodiment, the first body 100 may have two liquid output connectors 144. Furthermore, each liquid output connector 144 may also have multiple liquid outlets 145. During use, when the liquid matrix within the first liquid storage chamber 112 flows out of at least one of the liquid outlets 145 on the multiple liquid output connectors 144, at least one other liquid outlet 145 serves as an air inlet, allowing air to enter the liquid output connector 144 and into the first liquid storage chamber 112, thereby maintaining pressure balance within the first liquid storage chamber 112.

As shown in Figures 3 to 15, the number of liquid output connectors 144 of the first body 100 is at least two, for example, the liquid output connector 144 may include a first connector and a second connector arranged in parallel; accordingly, the number of liquid input interfaces 322 on the second body 200 is also at least two, for example, the liquid input interface 322 may include a first interface and a second interface arranged in parallel. The first connector and the second connector are respectively arranged on both sides of the atomization assembly, and the first interface and the second interface are respectively arranged on both sides of the atomization assembly. In some embodiments, the free end of the first connector and the free end of the second connector are flush. In addition, the distance between the liquid outlet 145 on the first connector and the free end is equal to the distance between the liquid outlet 145 on the second connector and the free end.

For example, in the embodiment, two liquid outlets 145 are arranged on the side wall of each liquid output connector 144 in opposite radial directions; when the liquid matrix in the liquid output connector 144 flows out from one of the two liquid outlets 145, the air in the second liquid storage chamber 328 and/or the first partition space 331 enters the liquid output connector 144 from the other of the two liquid outlets 145.

As shown by arrow R3 in Figures 10 to 21, the atomization module 300 is also defined by a ventilation channel 40 for connecting the second liquid storage chamber 328 and/or the first partition space 331 with the air flow channel (representing the second channel portion) passing through the atomization module 300, that is, the ventilation channel 40 is connected between the second liquid storage chamber 328 and the second channel portion. The ventilation channel 40 is used to balance the pressure in the second liquid storage chamber 328 and/or the first compartment space 331; for example, when the negative pressure in the second liquid storage chamber 328 and/or the first compartment space 331 exceeds a predetermined threshold, the ventilation channel 40 provides a channel path for air to enter the second liquid storage chamber 328 and/or the first compartment space 331 to relieve the pressure in the second liquid storage chamber 328 and/or the first compartment space 331; for example, when the liquid retaining element 330 of the second liquid storage chamber 328 supersaturates the adsorption of liquid matrix, causing the internal pressure to exceed a predetermined threshold, the air in the second liquid storage chamber 328 and/or the first compartment space 331 is discharged to the outside through the ventilation channel 40 to relieve the pressure in the second liquid storage chamber 328 and/or the first compartment space 331.

In the embodiment, the ventilation channel 40 is defined on the second body 200 and avoids the first body 100 .

As shown by arrow R3 in Figures 10 to 21, the ventilation channel 40 is formed or defined between the support element 320 and the second sealing element 310, and combined with the arrow R2 in Figure 9, the ventilation channel 40 is formed or defined between the receiving chamber 211 and the second liquid storage chamber 328.

The ventilation channel 40 includes a first ventilation groove 316 disposed on the outer surface of the extension wall 315. Specifically, the second sealing element 310 is provided with an extension wall 315 that at least partially extends from the connection hole 321 of the support element 320 into the tubular element 340. When the extension wall 315 partially extends into the tubular element 340, the extension wall 315 and the liquid-conducting element 350 are spaced apart, for example, with a spacing of 0.2 to 2.0 mm between them. Furthermore, the extension wall 315 is annular in shape, partially extending from the connection hole 321 of the support element 320 into the tubular element 340, at least partially surrounding or defining the airflow channel through the atomizer module 300. After assembly, the ventilation groove 316 maintains a gap between the extension wall 315 and the tubular element 340, thereby connecting the ventilation channel 40 to the airflow channel through the ventilation groove 316.

The ventilation channel 40 further includes a second ventilation groove 324 disposed on the surface of the support element 320, and a ventilation hole 325 extending from the second ventilation groove 324 to the second liquid storage chamber 328 and/or the first compartment 331. After assembly, the second ventilation groove 324 is at least partially opposed to, aligned with, or overlaps with the first ventilation groove 316, thereby establishing communication between the second ventilation groove 324 and the first ventilation groove 316. Ultimately, the ventilation hole 325, the second ventilation groove 324, and the first ventilation groove 316 collectively define the ventilation channel 40, connecting the second liquid storage chamber 328 and/or the first compartment 331 with the airflow channel.

In one embodiment, the second vent groove 324 is disposed on the bottom wall of the first accommodating cavity 327. Furthermore, the vent hole 325 and the first vent groove 316 are connected to either side of the second vent groove 324. Alternatively, the second vent groove 324 extends from the vent hole 325 to the first vent groove 316. Alternatively, in other alternative embodiments, the second vent groove 324 may be disposed on the surface of the second sealing element 310 facing the support element 320.

In an embodiment, the diameter or width of the ventilation channel 40 is between 0.2 and 2.0 mm; for example, the diameter or width of the ventilation hole 325 / the second ventilation groove 324 / the first ventilation groove 316 is between 0.2 and 2.0 mm.

In use, when the user is not inhaling, the first distance d11 between the liquid output connector 144 of the first body 100 and the liquid input interface 322 of the second body 200 absorbs the liquid matrix flowing out of the liquid outlet 145, and is in a balanced state with the pressure of the second liquid storage chamber 328; when the user inhales, as the liquid matrix is consumed and the negative pressure in the air flow channel increases, the negative pressure in the second liquid storage chamber 328 increases to exceed a predetermined threshold, thereby destroying the balance, and the negative pressure in the second liquid storage chamber 328 can be transmitted to the liquid input interface 322 through the material gap of the liquid retaining element 330. The liquid matrix adsorbed within the first distance d11 then seeps downward into the second liquid storage chamber 328 and is absorbed by the liquid retaining element 330. This occurs until the user stops inhaling, air enters the second liquid storage chamber 328 from the ventilation channel 40, and the amount of liquid matrix added to the second liquid storage chamber 328 jointly relieves the negative pressure within the second liquid storage chamber 328 to a predetermined range. The liquid matrix adsorbed within the first distance d11 then forms a liquid film to seal the liquid outlet 145, re-establishing equilibrium so that the liquid matrix within the first body 100 no longer continues to be replenished into the second liquid storage chamber 328. In use, the electronic atomization device can respond to the user's inhalation and automatically replenish the liquid matrix from the first body 100 into the second body 200 according to a predetermined amount during each inhalation process or during the lag period after the inhalation is completed.

In an embodiment, the volume of the first liquid storage chamber 112 in the first body 100 is greater than the volume of the second liquid storage chamber 328 in the second body 200. The first liquid storage chamber 112 can absorb and store a greater amount of liquid matrix than the second liquid storage chamber 328 in the second body 200. For example, in some specific embodiments, the first liquid storage chamber 112 in the first body 100 can absorb and store 5 to 20 mL of liquid matrix, more specifically, 10 mL; while the second liquid storage chamber 328 in the second body 200 can store 5 to 20 mL of liquid matrix, or 0.5 to 3 mL of liquid matrix, more specifically, 2 mL.

It should be noted that the specification and drawings of this application provide preferred embodiments of the present application, but are not limited to the embodiments described in this specification. Furthermore, it is possible for a person skilled in the art to make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the claims attached to this application.

Claims (17)

An electronic atomization device, characterized by comprising: A first body and a second body that can exist independently, and the first body can be combined with the second body by user operation; The first body includes: a first liquid storage chamber, for storing a liquid matrix; The second body includes: a second liquid storage chamber for storing a liquid matrix; when the first body is combined with the second body, a channel connecting the first liquid storage chamber and the second liquid storage chamber can be established therebetween, thereby replenishing the liquid matrix in the first liquid storage chamber into the second liquid storage chamber; an atomizing assembly, configured to receive the liquid matrix in the second liquid storage chamber and atomize the liquid matrix to generate an aerosol; an air flow channel for allowing air to pass through the electronic atomization device during inhalation; The ventilation channel connects the second liquid storage chamber with the air flow channel to adjust the pressure in the second liquid storage chamber. The electronic atomization device according to claim 1, wherein the ventilation channel is defined on the second body and avoids the first body. The electronic atomization device according to claim 1 or 2, characterized in that the airflow channel includes a first channel portion defined or formed by the first body, and a second channel portion defined or formed by the second body; The ventilation channel is connected between the second liquid storage chamber and the second channel portion. The electronic atomization device according to claim 1 or 2, wherein the diameter or width of the ventilation channel is between 0.2 and 2.0 mm. The electronic atomization device according to claim 1 or 2, wherein the second body further comprises: a first end and a second end facing away from each other in a longitudinal direction; a receiving cavity, open at the first end; when the first body is coupled to the second body, at least a portion of the first body is received in the receiving cavity; The ventilation channel is formed or defined between the receiving cavity and the second liquid storage cavity. The electronic atomization device according to claim 1 or 2, wherein the second body further comprises: a support element at least partially defining the second liquid storage chamber; A flexible second sealing element is coupled to the support element; when the first body is coupled to the second body, the second sealing element is at least partially located between the first body and the support element to provide a seal therebetween. The electronic atomization device according to claim 6, characterized in that the ventilation channel is at least partially defined between the support element and the second sealing element. The electronic atomization device according to claim 6 is characterized in that the ventilation channel includes a ventilation hole or a ventilation groove formed on the supporting element and/or the second sealing element. The electronic atomization device according to claim 6, wherein the second sealing element comprises: an extending wall at least partially surrounding or defining the airflow channel; The ventilation channel includes a first ventilation groove axially arranged on the outer surface of the extension wall, and is communicated with the air flow channel through the first ventilation groove. The electronic atomization device according to claim 9, wherein the ventilation channel further comprises: a vent hole extending from the second liquid storage chamber to the outer surface of the support element; A second ventilation groove is defined by the supporting element and/or the second sealing element and extends from the ventilation hole to the first ventilation groove along the radial direction of the electronic atomization device. The electronic atomization device according to claim 1 or 2, wherein the second body further comprises: a liquid retaining element, arranged in the second liquid storage chamber, for absorbing and retaining the liquid matrix in the second liquid storage chamber; The nebulizing assembly is arranged to draw or receive liquid matrix from the liquid retaining element. The electronic atomization device according to claim 11, wherein the second body further comprises: a first end and a second end facing each other in a longitudinal direction; the first body can be coupled to the second body from the first end; The second liquid storage chamber has a first inner wall close to the first end; a first spacing space is defined or formed in the second liquid storage chamber and is located between the liquid retaining element and the first inner wall; the ventilation channel connects the first spacing space and the airflow channel. The electronic atomization device according to claim 12, wherein the second liquid storage chamber further comprises a second inner wall proximate to the second end; and a second spacing space is defined between the liquid retaining element and the second inner wall; The second compartment and the first compartment are in fluid communication. The electronic atomization device according to claim 13, wherein the second liquid storage chamber has an inner sidewall that circumferentially surrounds or defines the second liquid storage chamber; The inner side wall is provided with a plurality of ridges spaced apart along the circumferential direction; the outer surface of the liquid retaining element abuts against the ridges; The ribs are arranged to extend in the longitudinal direction, and gaps between adjacent ribs form a channel communicating the second compartment and the first compartment. The electronic atomization device as described in claim 11 is characterized in that the second body further includes a liquid input interface connected to the second liquid storage chamber, and the liquid retaining element abuts against the port of the liquid input interface located in the second liquid storage chamber. An electronic atomization device, characterized by comprising: A first body and a second body that can exist independently, and the first body can be combined with the second body by user operation; The first body includes: an air outlet and a first air flow channel portion; The second body includes: an air inlet and a second air flow channel portion; a second liquid storage chamber, for storing a liquid matrix; an atomizing assembly, configured to receive the liquid matrix in the second liquid storage chamber and atomize the liquid matrix to generate an aerosol; When the first body is combined with the second body, the first airflow channel portion and the second airflow channel portion jointly define an airflow path from the air inlet through the atomizer assembly to the air outlet, so as to deliver the aerosol to the air outlet; The ventilation channel partially connects the second liquid storage chamber and the second air flow channel to each other so as to adjust the pressure in the second liquid storage chamber. A second body for an electronic atomization device, characterized by comprising: a first end and a second end facing each other in a longitudinal direction; a second liquid storage chamber, for storing a liquid matrix; an atomizing assembly, configured to receive the liquid matrix from the second liquid storage chamber and atomize the liquid matrix to generate an aerosol; a receiving chamber, which is open at the first end and is used to receive the first body of the electronic atomization device; when the first body of the electronic atomization device is received in the receiving chamber, the liquid matrix can be replenished into the second liquid storage chamber; an air flow channel forming or defining an air flow path through the second body; The ventilation channel connects the second liquid storage chamber with the air flow channel to adjust the pressure in the second liquid storage chamber.