WO2024217239A1 - Electronic atomization device - Google Patents

Abstract

Disclosed in the present application is an electronic atomization device. The electronic atomization device comprises: a liquid storage cavity; a heating element; a battery cell; an airflow channel; an airflow sensor comprising a first side and a second side, wherein the first side is configured to be in airflow communication with the airflow channel, and the second side is configured to be in communication with the outside atmosphere; a communication port for providing a channel for communicating the second side with the outside atmosphere; a movable blocking element, by means of which the communication port is selectively open or closed; a locking mechanism, wherein when the blocking element is located at a closed position, the locking mechanism is in a locking state so as to prevent the blocking element from being moved to an open position, and the locking mechanism in an unlocking state allows the blocking element to be moved to the open position; and a circuit, which controls the battery cell to provide electric power according to a sensing result of the airflow sensor. In the electronic atomization device, the blocking element is locked at the closed position by means of the locking mechanism, thereby preventing the blocking element, before same is unlocked, from being moved from the closed position to the open position so as to obtain aerosol.

Description

Electronic atomization device

Cross-references to related documents

This application claims the priority of the prior application with application number 202320957642.5 filed with the State Intellectual Property Office of China on April 17, 2023 and entitled “Electronic Atomization Device”. The contents of the above-mentioned prior application are incorporated into this text by introduction.

Technical Field

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

Background Art

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

An example of such a product is a heating device, which releases compounds by heating rather than burning materials. For example, the material may be tobacco or other non-tobacco products, which may or may not contain nicotine. As another example, there are aerosol providing products, such as so-called electronic atomization devices. These devices generally contain a liquid, which is heated to vaporize it, thereby producing an inhalable aerosol. The liquid may contain nicotine and/or fragrances and/or aerosol-generating substances (e.g., glycerol). Known electronic atomization devices sense the user's suction action by an airflow sensor, and control the vaporization of the liquid to generate an aerosol according to the sensing of the airflow sensor.

Summary of the invention

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

A liquid storage chamber, used for storing a liquid matrix;

a heating element for heating the liquid matrix to generate an aerosol;

A battery cell for providing power to the heating element;

An air inlet, an air outlet, and an air flow channel between the air inlet and the air outlet;

An airflow sensor for sensing airflow changes in the airflow channel; the airflow sensor comprises a first side and a second side that are airflow-isolated from each other; the first side is used for airflow communication with the airflow channel, and the second side is used for airflow communication with the outside atmosphere;

A communication port, used to provide a passage for connecting the second side with the outside atmosphere;

A movable shielding element, arranged to be selectively movable between a closed position and an open position; wherein the shielding element closes the communication port in the closed position and at least partially opens the communication port in the open position;

a locking mechanism capable of switching between a locked state and an unlocked state; when the shielding element is in the closed position, the locking mechanism prevents the shielding element from moving from the closed position to the open position in the locked state, and the locking mechanism allows the shielding element to move from the closed position to the open position in the unlocked state;

The circuit is configured to control the battery cell to provide power to the heating element according to the sensing result of the airflow sensor.

In some embodiments, the locking mechanism includes a first locking structure and a second locking structure; when the locking mechanism is in a locked state, the first locking structure engages with the second locking structure; when the locking mechanism is in an unlocked state, the first locking structure does not engage with the second locking structure.

In some embodiments, it also includes:

An operating element configured to be operated by a user in a first direction, thereby driving the shielding element to move between the closed position and the open position along the first direction;

Furthermore, the operating element can be operated by a user in a second direction, so as to drive the locking mechanism to change from the locked state to the unlocked state when the shielding element is located at the closed position.

In some embodiments, it also includes:

A housing defining an outer surface of the electronic atomization device;

The operating element is at least partially located outside the housing; and/or the shielding element is located inside the housing.

In some embodiments, the first direction includes the width direction of the electronic atomization device;

And/or, the second direction includes the longitudinal direction of the electronic atomization device.

In some embodiments, it also includes:

An operating element can be pressed by a user to drive the locking mechanism to change from the locked state to the unlocked state when the shielding element is located at the closed position.

In some embodiments, the operating element can be moved and operated by a user to drive the shielding element to move between the closed position and the open position.

In some embodiments, it also includes:

A housing defining an outer surface of the electronic atomization device;

One of the first locking structure and the second locking structure is disposed on the shielding element, and the other is disposed on the housing.

In some embodiments, the first locking structure includes a pin disposed on the shielding element;

The second locking structure includes an inserting hole arranged on the housing for the pin to be inserted into and engaged with the pin.

In some embodiments, it also includes:

A biasing element is arranged to bias the locking mechanism toward the locked state when the shielding element is in the closed position.

In some embodiments, when the shielding element is in the closed position and the open position, the airflow channel is airflow-free or airflow is allowed to flow.

The above electronic atomization device locks the shielding element in the closed position through a locking mechanism to prevent the shielding element from being moved from the closed position to the open position to obtain aerosol before being unlocked.

BRIEF DESCRIPTION OF THE DRAWINGS

One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and 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 from one viewing angle;

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

FIG3 is a cross-sectional schematic diagram of the electronic atomization device in FIG1 from one viewing angle;

FIG4 is an exploded schematic diagram of some components of the electronic atomization device in FIG1 from one viewing angle;

FIG5 is an exploded schematic diagram of some components of the electronic atomization device in FIG4 from another perspective;

FIG6 is a cross-sectional schematic diagram of the operating assembly in FIG3 in a closed position;

FIG7 is a cross-sectional view of the operation assembly in FIG6 being unlocked in the closed position by pressing inward;

FIG8 is a cross-sectional schematic diagram of the operating assembly in FIG7 moved to an open position;

9 is a cross-sectional schematic diagram of the elastic element in FIG. 8 returning to the extended state to hold the operating element in the open position;

FIG10 is a schematic structural diagram of an airflow sensor in one embodiment;

FIG. 11 is a schematic diagram showing the change in the deformable electrode membrane in FIG. 10 in response to the suction airflow.

DETAILED DESCRIPTION

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

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

FIG1 shows a schematic diagram of an electronic atomization device 100 according to a specific embodiment, including a housing 10 and several components disposed within the housing 10. The overall design of the housing may vary and may define the overall size and external shape of the electronic atomization device 100. Typically, the housing 10 has an elongated shape, which may be formed by a single integral shell, or may also be formed by two or more separable bodies.

For example, the electronic atomization device 100 may provide a control body at one end of the housing 10, which includes one or more reusable components (such as a rechargeable battery and/or a rechargeable supercapacitor, and various electronic devices for controlling the operation of the device), and provide a mouthpiece portion for the user to inhale at the other end of the housing 10. In some examples, the mouthpiece portion may be a part of the housing 10.

Further in the specific embodiment shown in FIG. 1 to FIG. 2 , the electronic atomization device 100 includes:

The housing 10 basically defines the outer surface of the electronic atomization device 100, and has a proximal end 110 and a distal end 120 arranged opposite to each other in the longitudinal direction; in use, the proximal end 110 is the end close to the user for the user to inhale; the distal end 120 is the end away from the user.

In some examples, the housing 10 may be formed of a metal or alloy such as stainless steel, aluminum, etc. Other suitable materials include various plastics (e.g., polycarbonate), metal-plating over plastic, ceramics, and the like.

Further according to FIG. 1 and FIG. 2 , the electronic atomization device 100 further includes:

The air outlet 113 is used for the user to inhale and is located at the proximal end 110 of the housing 10 .

The air inlet 121 is defined at the distal end 120 of the housing 10 for allowing external air to enter.

As shown in FIG3 , the electronic atomization device 100 further includes:

A liquid storage chamber 12 for storing a liquid matrix, and an atomizing assembly for drawing the liquid matrix from the liquid storage chamber 12 and heating and atomizing the liquid matrix. To facilitate vaporization and output, the liquid storage chamber 12 and the atomizing assembly are both arranged near the proximal end 110. The electronic atomization device 100 also includes an aerosol output tube 11 arranged in the longitudinal direction, the aerosol output tube 11 at least partially extending in the liquid storage chamber 12, and the liquid storage chamber 12 is formed by the space between the outer wall of the aerosol output tube 11 and the inner wall of the housing 10. The aerosol output tube 11 The end portion close to the proximal end 110 is communicated with the air outlet 113 so as to output the aerosol generated by atomization of the atomization assembly to the air outlet 113 for inhalation.

According to the embodiment shown in FIG3 , the atomization assembly includes:

The liquid-conducting element 13 is made of a capillary material or a porous material, such as a sponge, cotton fiber, or a porous body such as a porous ceramic body. The liquid-conducting element 13 is arranged to extend in the aerosol output tube 11 along the longitudinal direction; and the liquid-conducting element 13 is configured in a tubular shape, and the outer surface of the liquid-conducting element 13 can absorb the liquid matrix and store part of the liquid matrix through the holes on the aerosol output tube 11, and the liquid transfer direction is shown by the arrow R1 in FIG. 3 .

The heating element 14 is located in the aerosol output tube 11 and is combined with the inner surface of the liquid guiding element 13; the heating element 14 is used to heat at least part of the liquid matrix in the liquid guiding element 13 to generate aerosol and release it to the aerosol output tube 11. In the preferred embodiment, the heating element 14 is a cylindrical heating net, a spiral coil, etc.

Alternatively, in some other implementation variations, the liquid-conducting element 13 may also be configured to have various regular or irregular shapes, and partially be in fluid communication with the liquid storage chamber 12 to receive the liquid matrix. Alternatively, in other implementation variations, the liquid-conducting element 13 may have more regular or irregular shapes, such as a polygonal block, a groove shape with grooves on the surface, or an arch shape with a hollow channel inside.

Or in some other variations of implementation, the heating element 14 may be combined with the liquid-conducting element 13 by printing, deposition, sintering or physical assembly. In some other variations of implementation, the liquid-conducting element 13 may have a plane or a curved surface for supporting the heating element 14, and the heating element 14 is formed on the plane or the curved surface of the porous body by mounting, printing, deposition and the like. Or in some other variations of implementation, the heating element 14 is a conductive track formed on the surface of the liquid-conducting element 13. In some embodiments, the conductive track of the heating element 14 may be in the form of a printed circuit formed by printing. In some embodiments, the heating element 14 is a patterned conductive track. In some other embodiments, the heating element 14 is planar. In some embodiments, the heating element 14 is a conductive track that extends in a circuitous, meandering, reciprocating or bending manner.

As shown in FIG3 , a flexible sealing seat 15 is further disposed in the housing 10; the sealing seat 15 at least partially supports the aerosol output tube 11 and seals the liquid storage chamber 12. After assembly, the liquid storage chamber 12 defined between the outer wall of the aerosol output tube 11 and the inner wall of the housing 10 is closed at the end near the proximal end 110; and the opening of the liquid storage chamber 12 toward the distal end 120 is sealed by the sealing seat 15.

The shape of the sealing seat 15 is basically adapted to the opening of the liquid storage chamber 12 toward the distal end 120. The sealing seat 15 also defines an air passage that passes through the sealing seat 15 along the longitudinal direction of the electronic atomization device 100. The passage 151 is provided to allow external air to pass through the sealing seat 15 and enter the aerosol output tube 11 during inhalation.

Further referring to FIG. 3 , the electronic atomization device 100 further includes:

The battery cell 16 is at least partially contained and retained in the housing 10, and is used to power the heating element 14, and the battery cell 16 is located between the sealing seat 15 and the distal end 120. Specifically, the two ends of the heating element 14 are connected by welding leads 141, and the leads 141 penetrate the sealing seat 15, and then establish a conductive connection with the battery cell 16. In some specific implementations, the electronic atomization device 100 also includes: a circuit board (not shown in the figure), on which relevant functional circuits are integrated; and the circuit board is arranged against or in parallel with the battery cell 16; the circuit board, such as a PCB board, extends longitudinally along the electronic atomization device 100, and is substantially parallel to the battery cell 16 and abuts against or fits the battery cell 16. And, the circuit board is conductively connected to the battery cell 16, and the two ends of the heating element 14 are connected to the circuit board by welding leads 141, and the leads 141 penetrate the sealing seat 15, and then the circuit board guides the current between the battery cell 16 and the heating element 14.

As shown in FIG3 , the airflow path of the electronic atomization device 100 during inhalation is shown by arrow R2; the distal end 120 of the electronic atomization device 100 is provided with an air inlet 121 for allowing external air to enter the housing 10 during inhalation. There is a gap between the battery cell 16 and the housing 10, so that the air entering the air inlet 121 can enter the air channel 151 of the sealing seat 15 through the gap between the battery cell 16 and the housing 10, and then pass through the aerosol output tube 11 and carry the aerosol generated by heating by the heating element 14 to be output to the air outlet 113.

As shown in FIG. 3 , the electronic atomization device 100 includes: a sensing component for sensing the change of the airflow flowing through the electronic atomization device 100 during suction; the control device on the circuit board controls the battery 16 to provide power to the heating element 14 according to the sensing result of the sensing component to heat the liquid matrix in the liquid-conducting element 13 to generate an aerosol. The above-mentioned sensing component includes: an airflow sensor 40, such as a microphone or a pressure difference sensor, etc., having a first side 410 and a second side 420 that are opposite to each other along the longitudinal direction of the electronic atomization device 100. After assembly, along the longitudinal direction of the electronic atomization device 100, the airflow sensor 40 is located between the battery 16 and the distal end 120; the airflow sensor 40 and the battery 16 are arranged at intervals, and the first side 410 of the airflow sensor 40 is toward or adjacent to the battery 16, and the second side 420 is away from the battery 16 and toward the distal end 120. The airflow sensor 40 maintains a gap with the battery cell 16 through the first side 410, and the gap is connected to the gap between the battery cell 16 and the housing 10, or the gap provides a partial airflow path, thereby enabling the airflow sensor 40 to sense changes in airflow flowing through the electronic atomization device 100 during inhalation.

In this embodiment, the second side 420 of the airflow sensor 40 is used to sense the pressure of the external atmosphere; and then the airflow sensor 40 can sense the pressure difference between the first side 410 and the second side 420 when it is greater than a preset threshold. The user's inhalation action is determined and a high-level signal is output; further, the control device on the circuit board controls the battery 16 to output power to the heating element 14 according to the high-level signal output by the airflow sensor 40 to atomize the liquid to generate an aerosol.

As shown in FIG3 , as an optional example, the sensing assembly further includes: a flexible sealing element 50, for example, made of materials such as silicone or thermoplastic elastomer. The sealing element 50 surrounds or wraps the airflow sensor 40, thereby making the first side 410 and the second side 420 of the airflow sensor 40 in an airflow-isolated state, so that the pressure of the second side 420 during sensing is not affected by the pressure of the first side 410. Specifically, the flexible sealing element 50 is arranged around the airflow sensor 40 and has an upper end and a lower end that are separated from each other; wherein the upper end of the sealing element 50 is located on the first side 410 of the airflow sensor 40, and the upper end of the sealing element 50 is open, that is, the first side 410 of the airflow sensor 40 is exposed or substantially exposed. The lower end of the sealing element 50 is located on the second side 420 of the airflow sensor 40, and the lower end of the sealing element 50 basically wraps the second side 420 of the airflow sensor 40; and the lower end of the sealing element 50 is provided with a through hole 51, and the through hole 51 is used to at least partially expose the second side 420 of the airflow sensor 40, and to connect the second side 420 of the airflow sensor 40 with the outside atmosphere through the through hole 51.

As shown in FIG. 4 and FIG. 5 , the housing 10 of the electronic atomization device 100 includes:

The main housing 1100 is close to and defines the proximal end 110; the end cap 1200 is close to and defines the distal end 120. The main housing 1100 has an opening toward the distal end 120; during assembly, the end cap 1200 is combined with the main housing 1100 and closes the opening of the main housing 1100. And, after assembly, the main housing 1100 and the end cap 1200 together form the housing 10 of the electronic atomization device 100.

As shown in FIG. 4 and FIG. 5 , the electronic atomization device 100 further includes:

The operating assembly is disposed at the distal end 120 defined by the end cover 1200 and is arranged to be movable along the width direction of the housing 10. Specifically, as shown in FIG. 4 and FIG. 5 , the operating assembly includes:

The operating element 20 is disposed at the distal end 120 and is arranged to be movable along the width direction of the housing 10. Specifically, a slide groove 122 extending along the width direction is defined on the end cover 1200 at the distal end 120, and at least a portion of the operating element 20 moves in the slide groove 122. The operating element 20 is configured in the form of a sliding button.

As shown in FIGS. 4 and 5 , the operating element 20 is configured to be substantially perpendicular to the longitudinal direction of the housing 10. The operating element 20 has an upper surface and a lower surface opposite to each other in the thickness direction; and after assembly, the lower surface of the operating element 20 is exposed outside the housing 10, and is used for the user to move and operate; in some examples, the lower surface of the operating element 20 is uneven, or concave. The uneven surface provides friction, which is convenient for facilitating the user to press the operating element 20 to perform a moving operation.

The end cover 1200 is provided with a communication port 124, which penetrates the end cover 1200; and in use, the communication port 124 is connected to the through hole 51 of the sealing element 50, thereby providing a passage for the through hole 51 of the sealing element 50 to communicate with the outside atmosphere. Specifically, as shown in FIG. 4 and FIG. 5 , the communication port 124 is isolated from the air inlet 121. Referring to FIG. 4 and FIG. 5 , the operating element 20 at least partially extends or protrudes into the main housing 1100 from the communication port 124.

Referring to Figures 4 and 5, the operating component further includes:

The shielding element 60 is located in the main housing 1100 and between the second side 420 of the airflow sensor 40 and the end cover 1200;

The connecting element 30, such as a countersunk screw, is used to connect the shielding element 60 and the operating element 20; so that when the user operates the operating element 20 to move it, the shielding element 60 can move with the movement of the operating element 20, thereby selectively blocking the connecting port 124 or partially opening the connecting port 124.

Accordingly, the operating element 20 is provided with a screw hole for connection with a connecting element 30 , such as a countersunk screw. During assembly, the connecting element 30 is partially inserted into the operating element 20 to form a connection.

Referring to Figures 4 and 5, the operating component further includes:

An elastic biasing element 21, such as a spring, is arranged between the operating element 20 and the end cap 1200. After assembly, the biasing element 21, such as a spring, provides an elastic force toward the distal end 120, so that the operating element 20 is biased toward the distal end 120.

As shown in FIG. 4 and FIG. 5 , the size of the shielding element 60 is larger than the size of the communication port 124; so that after assembly, the shielding element 60 can basically completely cover and block the communication port 124. In addition, the shielding element 60 includes a rigid rigid part 61 and a flexible part 62 fastened or accommodated in the rigid part 61; for example, in some embodiments, the rigid part 61 is made of plastic, organic polymer plastic, etc.; the flexible part 62 is made of flexible silicone or thermoplastic elastomer. After transfer, the rigid part 61 and the flexible part 62 can be directly prepared as one piece by two-color injection molding, etc.; or they are prepared separately and then fastened together by assembly. The flexible part 62 is facing or adjacent to the communication port 124, which is beneficial for blocking the communication port 124 to form an airtight isolation. The rigid part 61 is provided with a pin 611, which extends toward the end cover 1200; the end cover 1200 is provided with a plug hole 125 for the pin 611 to be inserted. 3, when the shielding element 60 covers or blocks the communication port 124, the shielding element 60 The pin 611 is inserted into the insertion hole 125 of the end cover 1200 , thereby preventing the operating element 20 from operating the shielding element 60 to move, so that the shielding element 60 keeps blocking or shielding the communication port 124 .

In practice, when the shielding element 60 blocks or blocks the communication port 124, as shown in FIG. 6 , the second side 420 of the airflow sensor 40 is isolated from the outside atmosphere, thereby preventing the airflow sensor 40 from being triggered, so that during the puffing process, the airflow sensor 40 cannot sense the airflow flowing through the electronic atomization device 100. When the user drives the shielding element 60 to move by the operating element 20 to at least partially open the communication port 124, the second side 420 of the airflow sensor 40 forms a connection with the outside atmosphere through the communication port 124, as shown by arrow R3 in FIG. 8 or FIG. 9 , so that when the user puffs, the airflow sensor 40 can be triggered based on the pressure difference between the first side 410 and the second side 420.

The operating element 20 can be pressed by the user to drive the shielding element 60 to move along the width direction of the housing 10. Specifically, as shown in Figures 6 to 10, the shielding element 60 has a closed position and an open position; and the shielding element 60 blocks or blocks the communication port 124 in the closed position, and the shielding element 60 at least partially opens the communication port 124 in the open position.

Specifically: FIG. 6 shows a schematic diagram of the shielding element 60 in the closed position, in which the shielding element 60 closes or blocks the communication port 124. In this closed position, the second side 420 of the airflow sensor 40 is sealed or isolated from the outside air, so the airflow sensor 40, such as a microphone or a pressure difference sensor, cannot be triggered, and thus cannot sense the airflow change flowing through the electronic atomization device 100 during suction. In this closed position, the heating element 14 cannot respond to the user's suction to heat the liquid matrix to produce an aerosol. And in this implementation, the chute 122 and/or the operating element 20 are isolated from the air inlet 121, and then in this closed position, the air inlet 121 is open; when the user inhales on the air outlet 113, an airflow can be formed between the air inlet 121 and the air outlet 113 to pass through the electronic atomization device 100, and the airflow direction is shown by the arrow R2 in the figure, but no aerosol is generated and output.

In the closed position shown in Figure 6, the pin 611 of the shielding element 60 is inserted into the plug hole 125 of the end cover 1200; the pin 611 cooperates with the plug hole 125 to form a fastened and locked shielding element 60 in the closed position, thereby locking the shielding element 60 in the closed position, and the user cannot directly drive the shielding element 60 to move to open the connecting port 124 by sliding the operating element 20.

As shown in FIG. 6 , the elastic biasing element 21, such as a spring, is in an extended state, and the elastic force of the spring biases the shielding element 60 toward the locking direction, thereby stably maintaining the shielding element 60 in the locked state in the closed position. In the embodiment shown in FIG. 6 , there is a distance d11 between the operating element 20 and the end cover 1200, so that the operating element 20 is non-abutting. In some embodiments, In this example, the distance d11 is approximately 3 mm to 5 mm.

FIG. 7 shows a schematic diagram of a user pressing the operating element 20 inward to unlock the shielding element 60 in the closed position; as shown by arrow R41 in FIG. 7 , the user presses the operating element 20 to overcome the elastic force of the elastic biasing element 21, and drives the shielding element 60 to abut against the sealing element 50 and block the through hole 51 of the sealing element 50; then at this time, in the state shown in FIG. 7 , since the through hole 51 of the sealing element 50 is blocked, the second side 420 of the airflow sensor 40 still cannot communicate with the outside atmosphere. And in the state of FIG. 7 , the user presses the operating element 20 to abut against the end cover 1200. As shown in FIG. 7 , through the user's pressing operation, the pin 611 of the shielding element 60 is disengaged from the plug hole 125 of the end cover 1200, thereby releasing the lock formed by the pin 611 and the plug hole 125, so that the user can continue to drive the operating element 20 to move the shielding element 60. And in the unlocked state shown in FIG. 7 , the biasing member 21 , such as a spring, located between the operating member 20 and the end cap 1200 is pressed by the user and is thus in a compressed state.

FIG8 shows a schematic diagram of a user operating by moving the operating element 20, thereby driving the shielding element 60 to move from the closed position of FIG7 to the open position, as shown by arrow R42 in FIG8 ; in the open position shown in FIG8 , the shielding element 60 simultaneously at least partially opens the through hole 51 of the sealing element 50 and the communication port 124 on the end cover 1200, thereby connecting the second side 420 of the airflow sensor 40 with the outside atmosphere, as shown by arrow R3 in FIG8 . And as shown in FIG8 , the shielding element 60 abuts against the sealing element 50 under the pressure of the user; and the operating element 20 abuts against the end cover 1200 under the pressure of the user. And in FIG8 , the biasing element 21, such as a spring, is pressed by the user and is in a compressed state.

In the state shown in FIG8 , after the user touches and presses the operating element 20, as shown by the arrow R3 in FIG9 , the biasing element 21, such as a spring, returns to the extended state through the elastic restoring force, thereby biasing the shielding element 60 and the operating element 20 toward the distal end 1200, so that the shielding element 60 abuts against the end cover 1200. Furthermore, through the elastic force of the biasing element 21, the shielding element 60 can be stably maintained in the open position after the user touches and presses in the open position. In the open position shown in FIG9 , the operating element 20 and the shielding element 60 at least partially open or reveal the communication port 124; at this time, the second side 420 of the airflow sensor 40 is connected to the outside air through the communication port 124. In the open position, when the user inhales through the air outlet 113, outside air can enter through the air inlet 121 and form an inhalation airflow passing through the electronic atomization device 100; and the airflow sensor 40 can be triggered based on the pressure difference between the first side 410 and the second side 420, so that the circuit board controls the battery cell 16 to supply power to the heating element 14 for heating and generating aerosol.

When the user needs to further move the shielding element 60 to the closed position and lock it after the user has finished inhaling, The user can perform operations opposite to the above operations, proceeding from the state shown in FIG. 9 to FIG. 6 , thereby moving the shielding element 60 to the closed position and locking it, thereby preventing other people, especially minors, from obtaining the aerosol.

In the above embodiment, the user moves the shielding element 60 between the closed position and the open position by operating the element 20, thereby selectively opening or closing the communication port 124. Therefore, the above electronic atomization device 100 can selectively allow or prevent the user from obtaining aerosol.

In the above implementation, the operating element 20 avoids the air inlet 121 in both the closed position and the open position; further, in the implementation, when the operating element 20 is in the closed position and the open position, the air inlet 121 is always open or uncovered. Alternatively, when the operating element 20 is in the closed position and the open position, an air flow channel can be formed from the air inlet 121 to the air outlet 113 when the user inhales.

Alternatively, in some other implementation variations, the operating element 20 can be coupled to the housing 10 in a rotatable manner, such as by rotation, and can selectively close or open the communication port 124 by rotation. Alternatively, in some other implementation variations, the operating element is removably coupled to the housing 10, such as the operating element includes a detachable cover, which can close the communication port 124 when the operating element is coupled to the housing 10, and can open the communication port 124 when the operating element is detached from the housing 10.

Specifically, for example, FIG. 10 shows a schematic diagram of an airflow sensor 40 sensing an inhaled airflow in one embodiment; the airflow sensor 40 includes:

A deformable electrode film 41 is arranged close to the first side 410;

The electrode plate 42 is arranged close to the second side 420; and the deformable electrode membrane 41 and the electrode plate 42 are arranged relatively spaced apart along the axial direction of the airflow sensor 40. The airflow sensor 40 determines the pressure difference between the first side 410 and the second side 420 based on the capacitance value between the deformable electrode membrane 41 and the electrode plate 42.

For example, FIG. 11 shows the state of the airflow sensor 40 during suction; when the suction airflow flows through the first side 410, since the first side 410 is under negative pressure, and if the air pressure on the side of the deformable electrode film 41 facing the electrode plate 42 is connected to the outside atmosphere, the deformable electrode film 41 can bend or deform toward the first side 410 to the state shown in FIG. 11; of course, the greater the suction force of the user, the greater the negative pressure on the first side 410, and the greater the deformation of the deformable electrode film 41. Then the change in the capacitance value defined between the deformable electrode film 41 and the electrode plate 42 is also greater; furthermore, the airflow sensor 40 determines the pressure difference between the first side 410 and the second side 420 based on the above change in capacitance value. When the connection between the second side 420 and the outside atmosphere is blocked or blocked by the shielding element 60, since the air pressure on the side of the deformable electrode film 41 facing the electrode plate 42 is isolated from the outside atmosphere, when the user sucks, the deformable electrode film 41 cannot deform in response to the negative pressure of suction. To a corresponding extent, the capacitance change between the deformable electrode membrane 41 and the electrode plate 42 cannot reach a responsive extent, and the airflow sensor 40 cannot be triggered in response to the user's inhalation.

It should be noted that the preferred embodiments of the present application are given in the specification and drawings of the present application, but are not limited to the embodiments described in the specification. Furthermore, it is possible for a person of ordinary skill 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 the present application.

Claims (11)

An electronic atomization device, characterized by comprising: A liquid storage chamber, used for storing a liquid matrix; a heating element for heating the liquid matrix to generate an aerosol; A battery cell for providing power to the heating element; An air inlet, an air outlet, and an air flow channel between the air inlet and the air outlet; An airflow sensor for sensing airflow changes in the airflow channel; the airflow sensor comprises a first side and a second side that are airflow-isolated from each other; the first side is used for airflow communication with the airflow channel, and the second side is used for airflow communication with the outside atmosphere; A communication port, used to provide a passage for connecting the second side with the outside atmosphere; A movable shielding element, arranged to be selectively movable between a closed position and an open position; wherein the shielding element closes the communication port in the closed position and at least partially opens the communication port in the open position; a locking mechanism capable of switching between a locked state and an unlocked state; when the shielding element is in the closed position, the locking mechanism prevents the shielding element from moving from the closed position to the open position in the locked state, and the locking mechanism allows the shielding element to move from the closed position to the open position in the unlocked state; The circuit is configured to control the battery cell to provide power to the heating element according to the sensing result of the airflow sensor. The electronic atomization device as described in claim 1 is characterized in that the locking mechanism includes a first locking structure and a second locking structure; when the locking mechanism is in a locked state, the first locking structure is engaged with the second locking structure; when the locking mechanism is in an unlocked state, the first locking structure is not engaged with the second locking structure. The electronic atomization device according to claim 1 or 2, further comprising: An operating element configured to be operated by a user in a first direction, thereby driving the shielding element to move between the closed position and the open position along the first direction; Furthermore, the operating element can be operated by a user in a second direction, so as to drive the locking mechanism to change from the locked state to the unlocked state when the shielding element is located at the closed position. The electronic atomization device according to claim 3, further comprising: A housing defining an outer surface of the electronic atomization device; The operating element is at least partially located outside the housing; and/or the shielding element is located inside the housing. The electronic atomization device according to claim 3, characterized in that the first direction includes a width direction of the electronic atomization device; And/or, the second direction includes the longitudinal direction of the electronic atomization device. The electronic atomization device according to claim 1 or 2, further comprising: An operating element can be pressed by a user to drive the locking mechanism to change from the locked state to the unlocked state when the shielding element is located at the closed position. The electronic atomization device as described in claim 6 is characterized in that the operating element can be moved by a user to drive the shielding element to move between the closed position and the open position. The electronic atomization device according to claim 2, further comprising: A housing defining an outer surface of the electronic atomization device; One of the first locking structure and the second locking structure is disposed on the shielding element, and the other is disposed on the housing. The electronic atomization device according to claim 8, characterized in that the first locking structure comprises a pin disposed on the shielding element; The second locking structure includes an inserting hole arranged on the housing for the pin to be inserted into and engaged with the pin. The electronic atomization device according to claim 1 or 2, further comprising: A biasing element is arranged to bias the locking mechanism toward the locked state when the shielding element is in the closed position. The electronic atomization device as described in claim 1 or 2 is characterized in that, when the shielding element is in the closed position and the open position, the airflow channel is unobstructed or airflow is allowed to flow.