ATOMIZER AND AEROSOL GENERATING DEVICE

Description

RELATED APPLICATION

The present application claims priority to Chinese Patent Application No. 202422665104.6, filed on Oct. 31, 2024. The entire disclosure of the prior application is hereby incorporated by reference.

TECHNICAL FIELD

This disclosure relates to the field of aerosol generating technologies, including to an atomizer and an aerosol generating device.

BACKGROUND

An aerosol generating device is a device atomizing an atomizing substrate through heating to form aerosols. An atomizer is an important component of the aerosol generating device. After e-liquid is injected into a liquid storage cavity, a specific negative pressure is usually generated in the liquid storage cavity by absorbing an atomizing substrate through a heating element, to lock the atomizing substrate. However, when an air pressure in the liquid storage cavity greatly fluctuates due to temperature impact, a positive pressure difference between the liquid storage cavity and the heating element may be relatively large. The positive pressure difference may force the atomizing substrate out of the liquid storage cavity through the heating element, finally causing liquid leakage and even blocking.

SUMMARY

An objective of this disclosure is to provide an atomizer and an aerosol generating device, to solve a prior-art technical problem that an atomizer is prone to e-liquid leakage.

To achieve this objective, a technical solution used in this disclosure is to provide an atomizer, including a liquid storage cavity, an atomizing cavity, a pressure relief channel, and a heating element, where the liquid storage cavity includes at least two liquid storage sub-cavities that are sequentially spaced from each other, the bottoms of two adjacent liquid storage sub-cavities are in communication with each other through a connection groove, an entrance of the pressure relief channel is in communication with one of the liquid storage sub-cavities, an exit of the pressure relief channel is in communication with the atomizing cavity, a liquid inlet surface of the heating element is in communication with each of the liquid storage sub-cavities, and an atomizing surface of the heating element is in communication with the atomizing cavity.

In some examples, the size of a cross section of the connection groove is less than or equal to 4 mm×4 mm.

In some examples, the at least two liquid storage sub-cavities are sequentially distributed along the circumference of the atomizing cavity; and for the liquid storage sub-cavity in communication with the pressure relief channel, the pressure relief channel and the connection groove are respectively disposed close to two sides of the liquid storage sub-cavity along the circumference of the atomizing cavity.

In some examples, the atomizer further includes a liquid storage tank, where the exit of the pressure relief channel is in communication with the liquid storage tank, and the liquid storage tank is formed at the bottom of the atomizing cavity.

In some examples, the atomizer further includes a liquid guiding cotton, where the liquid guiding cotton is covered on the liquid inlet surface of the heating element, and the liquid guiding cotton is adhered to the inner peripheral wall of the atomizing cavity.

In some examples, the liquid guiding cotton extends into the liquid storage tank; or

the liquid storage tank is further provided with a back suction cotton abutting against the liquid guiding cotton.

In some examples, the atomizer includes a liquid storage container, an atomizing tube, and a sealing member, where the liquid storage container and the atomizing tube jointly enclose to form the liquid storage cavity, the atomizing cavity is formed in the atomizing tube, the sealing member seals the bottoms of the liquid storage cavity and the atomizing cavity, the pressure relief channel is formed on the sealing member, and the sealing member further has an air inlet channel in communication with the atomizing cavity.

In some examples, an annular groove is provided in a concave form in the sealing member, the annular groove has a first inner peripheral wall and a second inner peripheral wall that are radially opposite to each other, the pressure relief channel is formed on the first inner peripheral wall, the bottom end of the atomizing tube is inserted into the annular groove and covers the pressure relief channel, and a third inner peripheral wall of the atomizing tube, the bottom of the first inner peripheral wall, and the bottom wall and the second inner peripheral wall of the annular groove jointly enclose to form the liquid storage tank.

In some examples, the pressure relief channel is disposed around the atomizing cavity, the pressure relief channel includes a plurality of sub-channels sequentially spaced from each other along an axial direction of the atomizing cavity, the sub-channels extend along the circumference of the atomizing cavity, and adjacent sub-channels are in communication with each other through a connection channel; or

the pressure relief channel spirally extends along the axial direction of the atomizing cavity.

According to another aspect, this disclosure further provides an aerosol generating device, including a power supply component, a suction nozzle, and the atomizer, where the power supply component is configured to supply power to the atomizer, and the suction nozzle is in communication with the atomizer.

Beneficial effects of the atomizer and the aerosol generating device provided in this disclosure are as follows: The liquid storage cavity is divided into at least two liquid storage sub-cavities that are sequentially spaced from each other, so that the capacity of each liquid storage sub-cavity is reduced relative to that of the liquid storage cavity, thereby reducing liquid leakage and blocking of the liquid storage sub-cavity during usage. In addition, one of the liquid storage sub-cavities is in communication with the entrance of the pressure relief channel, so that when a pressure in the liquid storage sub-cavity suddenly fluctuates, the pressure relief channel can lock the atomizing substrate forced out of the liquid storage sub-cavity, thereby reducing liquid leakage and blocking caused because the heating element cannot lock more of the atomizing substrate. In addition, the bottoms of two adjacent liquid storage sub-cavities are in communication with each other through the connection groove, so that when the atomizing substrate in the liquid storage sub-cavity in communication with the pressure relief channel runs out, the liquid storage sub-cavity may serve as a pressure relief space of another liquid storage sub-cavity, thereby further reducing liquid leakage and blocking of another liquid storage sub-cavity during usage.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings in the following description show only some examples of this disclosure, and a person of ordinary skill in the art may still derive other drawings from these accompanying drawings without creative efforts.

FIG. 1 is a schematic diagram of a three-dimensional structure of an aerosol generating device according to an example of this disclosure;

FIG. 2 is a schematic cross-sectional diagram of an aerosol generating device in parallel with a partition according to an example of this disclosure;

FIG. 3 is a schematic diagram of an enlarged structure of a part A in FIG. 2;

FIG. 4 is a schematic cross-sectional diagram of an aerosol generating device vertical to a partition according to an example of this disclosure;

FIG. 5 is a schematic diagram of an enlarged structure of a part B in FIG. 4;

FIG. 6 is a schematic structural diagram of an aerosol generating device from which a suction nozzle and a sealing cover are removed according to an example of this disclosure;

FIG. 7 is a schematic structural diagram of a liquid storage container of an aerosol generating device according to an example of this disclosure;

FIG. 8 is a schematic structural diagram of a sealing member of an aerosol generating device according to an example of this disclosure; and

FIG. 9 is a schematic diagram of a cross-sectional structure of a sealing member of an aerosol generating device according to an example of this disclosure.

Reference numerals in the figures are as follows:

• • 1. Atomizer; 101. Liquid storage cavity; 1011. Liquid storage sub-cavity; 102. Atomizing cavity; 103. Pressure relief channel; 1031. Sub-channel; 1032. Connection channel; 1033. Inlet channel; 1034. Outlet channel; 104. Liquid storage tank; 105. Air guiding channel; 100. Liquid storage container; 110. Outer board; 120. Inner board; 130. Partition; 131. Connection groove; 200. Atomizing tube; 210. Liquid inlet opening; 300. Sealing member; 310. Air inlet channel; 320. Annular groove; 321. First inner peripheral wall; 3211. Upper wall section; 3212. Lower wall section; 3213. Step surface; 322. Second inner peripheral wall; 400. Heating element; 410. Liquid inlet surface; 420. Atomizing surface; 500. Liquid guiding cotton; 600. Sealing cover; 2. Power supply component; 201. Battery; 202. Air flow sensor; 203. Battery rack; 204. Main housing; 205. Circuit board; and 3. Suction nozzle.

DETAILED DESCRIPTION

The following further describes this disclosure in detail with reference to the accompanying drawings and the examples. It should be understood that the specific examples described herein are merely used to explain this disclosure but are not intended to limit this disclosure.

It should be noted that when an element is referred to as being “fastened to” or “disposed on” another element, the element may be directly on the another element, or indirectly on the another element. When an element is referred to as being “connected to” another element, the element may be directly connected to the another element, or indirectly connected to the another element.

It should be understood that orientation or position relationships indicated by the terms such as “first direction”, “second direction”, “above”, “below”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, and “outside” are based on orientation or position relationships shown in the accompanying drawings, and are used only for ease of description of this disclosure and brevity of illustration, rather than indicating or implying that the mentioned apparatus or component needs to have a particular orientation or needs to be constructed and operated in a particular orientation. Therefore, such terms should not be construed as limiting of this disclosure.

In addition, terms “first” and “second” are used merely for the purpose of description, and shall not be construed as indicating or implying relative importance or implying a quantity of indicated technical features. Therefore, a feature limited by “first” or “second” may explicitly or implicitly include one or more of the features. In the descriptions of this disclosure, “a plurality of” means two or more.

As stated in the background, while structural sealing is ensured, after e-liquid is injected into a liquid storage cavity, a specific negative pressure is usually generated in the liquid storage cavity by absorbing an atomizing substrate through a heating element, to lock the atomizing substrate. However, when an air pressure in the liquid storage cavity greatly fluctuates due to temperature impact, a positive pressure difference between the liquid storage cavity and the heating element may be relatively large. The positive pressure difference may force the atomizing substrate out of the liquid storage cavity through the heating element, finally causing liquid leakage and even blocking.

An equation of an ideal air state is PV=nRT, where P indicates an ideal air pressure, V indicates an ideal air volume, n indicates an amount of an air material, T indicates an ideal air thermodynamic temperature, and R indicates an ideal air constant. It can be seen from the foregoing formula that, the temperature is in direct proportion to the pressure. When the temperature decreases, the pressure of the air in the liquid storage cavity decreases. When the temperature increases, the pressure of the air in the liquid storage cavity increases.

In addition, when the capacity of the liquid storage cavity is relatively large, for example, above 2 ml, after a part of an atomizing substrate in the liquid storage cavity is consumed, the volume of air in the liquid storage cavity is larger. When a temperature difference changes, the risk of leakage of the atomizing substrate in the liquid storage cavity is higher.

A liquid storage cavity is divided into at least two liquid storage sub-cavities, so that the capacity of a single liquid storage sub-cavity is relatively small. When most of an atomizing substrate in the liquid storage sub-cavity is consumed, the volume of air in the liquid storage sub-cavity is not excessively large. In addition, when a pressure in the liquid storage sub-cavity changes suddenly, pressure release and air exchange of the liquid storage sub-cavity may be implemented through a pressure relief channel, so that the atomizing substrate in the liquid storage sub-cavity may be released to the pressure relief channel to reduce liquid leakage. Besides, when the pressure in the liquid storage sub-cavity is restored, the atomizing substrate in the pressure relief channel may further be drawn back into the liquid storage sub-cavity.

Referring to FIG. 1 to FIG. 6, an atomizer 1 provided of this disclosure is described.

The atomizer 1 includes a liquid storage cavity 101, an atomizing cavity 102, a pressure relief channel 103, and a heating element 400, where the liquid storage cavity 101 includes at least two liquid storage sub-cavities 1011 that are sequentially spaced from each other, the bottoms of two adjacent liquid storage sub-cavities 1011 are in communication with each other through a connection groove 131, an entrance of the pressure relief channel 103 is in communication with one of the liquid storage sub-cavities 1011, an exit of the pressure relief channel 103 is in communication with the atomizing cavity 102, a liquid inlet surface 410 of the heating element 400 is in communication with each of the liquid storage sub-cavities 1011, and an atomizing surface 420 of the heating element 400 is in communication with the atomizing cavity 102.

There may be two or more liquid storage sub-cavities 1011. The capacity of a single liquid storage sub-cavity 1011 may be 1 ml, 1.5 ml, 2 ml, or the like. A quantity of the liquid storage sub-cavities 1011 may be obtained according to a ratio of the total capacity of the liquid storage cavity 101 to the capacity of the single liquid storage sub-cavity 1011. For example, when the total capacity of the liquid storage cavity 101 is 3 ml, two liquid storage sub-cavities 1011 may be designed. For another example, when the total capacity of the liquid storage cavity 101 is 5 ml, three liquid storage sub-cavities 1011 may be designed.

The pressure relief channel 103 may be in communication with the liquid storage sub-cavity 1011 located at the head end, or the pressure relief channel 103 may be in communication with the liquid storage sub-cavity 1011 located at the tail end, or the pressure relief channel 103 may be in communication with the liquid storage sub-cavity 1011 located in the middle. The liquid storage sub-cavity 1011 in communication with the pressure relief channel 103 is set as a first liquid storage sub-cavity 1011, and the liquid storage sub-cavities 1011 sequentially in communication with the first liquid storage sub-cavity 1011 are sequentially set as a second liquid storage sub-cavity 1011, a third liquid storage sub-cavity 1011, and the like.

When a suction nozzle 3 is sucked, air exchange of the first liquid storage sub-cavity 1011 can be implemented through the pressure relief channel 103. Therefore, an atomizing substrate in the first liquid storage sub-cavity 1011 is preferentially heated and atomized by the heating element 400, to form aerosols in the atomizing cavity 102. Because of the arrangement of the pressure relief channel 103, even if the pressure in the first liquid storage sub-cavity 1011 changes suddenly, the atomizing substrate can be released to the pressure relief channel 103 and stored. In addition, because the volume of the first liquid storage sub-cavity 1011 is reduced relative to the total volume of the liquid storage cavity 101, the volume of air in the first liquid storage sub-cavity 1011 is relatively small, so that no excessive atomizing substrate flows to the pressure relief channel 103 and the heating element 400. Therefore, there is no e-liquid leakage caused because the pressure relief channel 103 cannot accommodate.

When an atomizing substrate in the first liquid storage sub-cavity 1011 runs out, because the second liquid storage sub-cavity 1011 is in communication with the first liquid storage sub-cavity 1011 through the connection groove 131, the second liquid storage sub-cavity 1011 may perform air exchange and pressure release through the first liquid storage sub-cavity 1011 and the pressure relief channel 103, that is, the first liquid storage sub-cavity 1011 may serve as a pressure relief space with a relatively large volume for the second liquid storage sub-cavity 1011, to avoid liquid leakage during usage of the second liquid storage sub-cavity 1011. By analogy, when the third liquid storage sub-cavity 1011 is used, both the first liquid storage sub-cavity 1011 and the second liquid storage sub-cavity 1011 may serve as a pressure relief space for the third liquid storage sub-cavity 1011, to avoid liquid leakage.

In an example of this disclosure, the liquid storage cavity 101 is divided into at least two liquid storage sub-cavities 1011 that are sequentially spaced from each other, so that the capacity of each liquid storage sub-cavity 1011 is reduced relative to that of the liquid storage cavity 101, thereby reducing liquid leakage and blocking of the liquid storage sub-cavity 1011 during usage. In addition, one of the liquid storage sub-cavities 1011 is in communication with the entrance of the pressure relief channel 103, so that when a pressure in the liquid storage sub-cavity 1011 suddenly fluctuates, the pressure relief channel 103 can lock the atomizing substrate forced out of the liquid storage sub-cavity 1011, thereby reducing liquid leakage and blocking caused because the heating element 400 cannot lock more of the atomizing substrate. In addition, the bottoms of two adjacent liquid storage sub-cavities 1011 are in communication with each other through the connection groove 131, so that when the atomizing substrate in the liquid storage sub-cavity 1011 in communication with the pressure relief channel 103 runs out, the liquid storage sub-cavity 1011 may serve as a pressure relief space of another liquid storage sub-cavity 1011, thereby further reducing liquid leakage and blocking of another liquid storage sub-cavity 1011 during usage.

In some examples, referring to FIG. 3 and FIG. 5, the size of a cross section of the connection groove 131 is less than or equal to 4 mm×4 mm. The cross section of the connection groove 131 is a plane perpendicular to the depth extension direction of the connection groove 131, that is, a plane perpendicular to a flow direction of fluid in the connection groove 131, that is, a plane perpendicular to the thickness direction of a partition 130. That the size of the cross section of the connection groove 131 is less than or equal to 4 mm×4 mm means that the size of the connection groove 131 in a first direction is less than or equal to 4 mm, and the size of the connection groove 131 in a second direction is also less than or equal to 4 mm. For example, the size of the connection groove 131 in the first direction may be 1 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, or 4 mm, and the size of the connection groove 131 in the second direction may be 1 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, or 4 mm. The first direction and the second direction are any two directions that are perpendicular to each other in the cross section of the connection groove 131.

In an example, the maximum size of the cross section of the connection groove 131 is defined, so that the size of the connection groove 131 is sufficiently small. Therefore, when the first liquid storage sub-cavity 1011 is in use, an atomizing substrate in the second liquid storage sub-cavity 1011 does not enter the first liquid storage sub-cavity 1011 through the connection groove 131, that is, two liquid storage sub-cavities 1011 do not discharge liquid at the same time. In addition, after the atomizing substrate in the first liquid storage sub-cavity 1011 runs out, the connection groove 131 can guide an atomizing substrate in the second liquid storage sub-cavity 1011 to the first liquid storage sub-cavity 1011, to prevent liquid leakage.

Optionally, the cross section of the connection groove 131 is a square, a circle, an ellipse, or another combined shape. The combined shape refers to a closed shape enclosed by straight lines and/or curves.

In some examples, referring to FIG. 4, the atomizing cavity 102 is circular, and the at least two liquid storage sub-cavities 1011 are sequentially distributed along the circumference of the atomizing cavity 102. For the liquid storage sub-cavity 1011 (that is, the first liquid storage sub-cavity 1011) in communication with the pressure relief channel 103, the pressure relief channel 103 and the connection groove 131 are respectively disposed close to two sides of the first liquid storage sub-cavity 1011 along the circumference of the atomizing cavity 102. That is, the pressure relief channel 103 in communication with the first liquid storage sub-cavity 1011 and the connection groove 131 are respectively disposed close to two sides of the first liquid storage sub-cavity 1011 along the circumference of the atomizing cavity 102, and the connection groove 131 is relatively far away from the pressure relief channel 103 along the circumference. In this way, when an atomizing substrate in the first liquid storage sub-cavity 1011 is pushed towards the pressure relief channel 103, liquid in the second liquid storage sub-cavity 1011 does not flow from the connection groove 131 to the first liquid storage sub-cavity 1011, thereby avoiding that the atomizing substrate in the first liquid storage sub-cavity 1011 and the second liquid storage sub-cavity 1011 discharge liquid at the same time, that is, avoiding liquid leakage caused because the combination of the first liquid storage sub-cavity 1011 and the second liquid storage sub-cavity 1011 is equivalent to the liquid storage cavity 101 with a larger volume. In an example, the atomizing cavity 102 may also have an elliptic shape or another shape, provided that the pressure relief channel 103 is far away from the connection groove 131 as much as possible.

In some examples, the connection groove 131 and the pressure relief channel 103 are both disposed close to the heating element 400, so that heat of the heating element 400 can be transferred to the connection groove 131 and the pressure relief channel 103, thereby facilitating liquid flow in the pressure relief channel 103 and the connection groove 131, to implement air exchange.

In some examples, the liquid storage sub-cavities 1011 are disposed around the circumference of the atomizing cavity 102. In some other examples of this disclosure, the liquid storage sub-cavities 1011 surround a part of the circumference of the atomizing cavity 102, that is, the liquid storage sub-cavities 1011 are not disposed around the entire circumference of the atomizing cavity 102.

In some examples, the volumes of the liquid storage sub-cavities 1011 are the same. It may be understood that, the volumes of the liquid storage sub-cavities 1011 may not be the same.

In an aspect, referring to FIG. 6, the liquid storage cavity 101 includes two liquid storage sub-cavities 1011. The two liquid storage sub-cavities 1011 cover a part of the circumference of the atomizing cavity 102, and the two liquid storage sub-cavities 1011 are symmetrically disposed. The two liquid storage sub-cavities 1011 are separated by the partition 130. The connection groove 131 is provided at the bottom of the partition 130. It may be understood that, in another embodiment of this disclosure, the two liquid storage sub-cavities 1011 may also be asymmetrically disposed.

In an aspect, referring to FIG. 3 and FIG. 5, the atomizer 1 further includes a liquid storage tank 104, where the exit of the pressure relief channel 103 is in communication with the liquid storage tank 104, and the liquid storage tank 104 is formed at the bottom of the atomizing cavity 102. The liquid storage tank 104 is disposed, so that when a large part of the atomizing substrate in the liquid storage sub-cavity 1011 leaks, and both the pressure relief channel 103 and the heating element 400 are full of the atomizing substrate, the atomizing substrate overflowing from the pressure relief channel 103 may flow to the liquid storage tank 104 and be stored, and the atomizing substrate overflowing from the heating element 400 may also flow to the liquid storage tank 104 at the bottom of the atomizing cavity 102 and be stored under the effect of gravity, to prevent liquid leakage and blocking. In addition, when the pressure in the liquid storage sub-cavity 1011 restores to a normal value, the atomizing substrate in the liquid storage tank 104 may be drawn back into the liquid storage sub-cavity 1011 through the pressure relief channel 103 for reuse, or may be drawn back into the heating element 400 through an inner wall of the atomizing cavity 102, to be heated and atomized by the heating element 400.

In an aspect, referring to FIG. 3 and FIG. 5, the atomizer 1 further includes a liquid guiding cotton 500, the liquid guiding cotton 500 is covered on the liquid inlet surface 410 of the heating element 400, and the liquid guiding cotton 500 is adhered to the inner peripheral wall of the atomizing cavity 102.

The liquid guiding cotton 500 is disposed, so that the atomizing substrate that flows from the liquid storage sub-cavity 1011 to the heating element 400 can be locked, to avoid leakage of the atomizing substrate from the heating element 400. In addition, the overflowing atomizing substrate can also flow to the liquid storage tank 104 through the inner peripheral wall of the liquid storage cavity 101 and be stored. Besides, after the pressure in the liquid storage sub-cavity 1011 restores to a normal value, the atomizing substrate in the liquid storage tank 104 can further be drawn back, to be heated and atomized by the heating element 400.

In an aspect, referring to FIG. 5, the liquid guiding cotton 500 extends into the liquid storage tank 104. That is, the axial length of the liquid guiding cotton 500 is increased, so that the liquid guiding cotton 500 can penetrate into the liquid storage tank 104. In this setting, an overflowing atomizing substrate in the liquid guiding cotton 500 can directly flow to the liquid storage tank 104, and the atomizing substrate in the liquid storage tank 104 can also be directly drawn away by the liquid guiding cotton 500 to be heated and atomized by the heating element 400.

Optionally, the liquid guiding cotton 500 may penetrate into the liquid storage tank 104 by a preset depth, so as to implement communication between the liquid guiding cotton 500 and the liquid storage tank 104. In another embodiment, the liquid guiding cotton 500 may alternatively directly penetrate into the bottom of the liquid storage tank 104.

In an aspect, a flow resistance of fluid in the pressure relief channel 103 is lower than a flow resistance of fluid in the liquid guiding cotton 500.

Herein, it should be noted that, that the flow resistance of the fluid in the pressure relief channel 103 is smaller than the flow resistance of the fluid in the liquid guiding cotton 500 means that when the same type of fluid flows through the pressure relief channel 103 and the liquid guiding cotton 500, a resistance that the fluid experiences in the pressure relief channel 103 is smaller than a resistance that the fluid experiences in the liquid guiding cotton 500. That is, when the liquid guiding cotton 500 or the pressure relief channel 103 needs to be selected for fluid to flow through, the pressure relief channel 103 is preferentially selected.

According to this setting, when a user sucks the suction nozzle 3 in a normal pressure state of the liquid storage sub-cavity 1011, external air enters the liquid storage sub-cavity 1011 through the pressure relief channel 103, to implement air exchange, an atomizing substrate in the liquid storage sub-cavity 1011 flows to the liquid guiding cotton 500, and the liquid guiding cotton 500 heats and atomizes the atomizing substrate to form aerosols. When more than half of the atomizing substrate in the liquid storage sub-cavity 1011 is consumed and air pressure in the liquid storage sub-cavity 1011 suddenly increases, due to action of the air pressure, the atomizing substrate is preferentially pressed towards the pressure relief channel 103 and the liquid storage tank 104, so that the atomizing substrate may be stored in the liquid storage tank 104, to avoid e-liquid leakage caused by pressing the atomizing substrate to the liquid guiding cotton 500.

In an aspect, referring to FIG. 2 to FIG. 4, the atomizer 1 includes a liquid storage container 100, an atomizing tube 200, and a sealing member 300, where the liquid storage container 100 and the atomizing tube 200 jointly enclose to form the liquid storage cavity 101, the atomizing cavity 102 is formed in the atomizing tube 200, the sealing member 300 seals the bottoms of the liquid storage cavity 101 and the atomizing cavity 102, the pressure relief channel 103 is formed on the sealing member 300, and the sealing member 300 further has an air inlet channel 310 in communication with the atomizing cavity 102. The sealing member 300 is disposed, so that the liquid storage cavity 101 can be sealed, and the pressure relief channel 103, the liquid storage tank 104, and the air inlet channel 310 can also be formed more easily, thereby simplifying the structure of the liquid storage container 100. It may be understood that, in another embodiment of this disclosure, the sealing member 300 may not be disposed. Instead, the pressure relief channel 103, the liquid storage tank 104, and the air inlet channel 310 are directly formed in the liquid storage container 100. This is not limited herein.

In an aspect, referring to FIG. 3, FIG. 5, FIG. 8, and FIG. 9, an annular groove 320 is provided in a concave form in the sealing member 300, the annular groove 320 has a first inner peripheral wall 321 and a second inner peripheral wall 322 that are radially opposite to each other, the pressure relief channel 103 is formed on the first inner peripheral wall 321, the bottom end of the atomizing tube 200 is inserted into the annular groove 320 and covers the pressure relief channel 103, and a third inner peripheral wall of the atomizing tube 200, the bottom of the first inner peripheral wall 321, and the bottom wall and the second inner peripheral wall 322 of the annular groove 320 jointly enclose to form the liquid storage tank 104. In this setting, the pressure relief channel 103 is disposed close to the atomizing tube 200, and the heat generated by the heating element 400 can be transferred to the pressure relief channel 103 as much as possible, to promote fluid flow in the pressure relief channel 103, thereby facilitating air exchange and pressure release. In addition, a bottom surface of the liquid storage tank 104 can be lower than the pressure relief channel 103, and an atomizing substrate in the pressure relief channel 103 can flow to the liquid storage tank 104 for storage. The inner diameter of the second inner peripheral wall 322 is less than that of the first inner peripheral wall 321.

Referring to FIG. 9, the first inner peripheral wall 321 includes an upper wall section 3211 and a lower wall section 3212. The inner diameter of the upper wall section 3211 is greater than that of the lower wall section 3212. A step surface 3213 is formed in a location where the upper wall section 3211 and the lower wall section 3212 are connected. The pressure relief channel 103 is formed in the upper wall section 3211. An outer peripheral wall of the atomizing tube 200 is adhered to the upper wall section 3211. A bottom end surface of the atomizing tube 200 abuts against the step surface 3213, that is, the atomizing tube 200 is axially limited through the step surface 3213. The third inner peripheral wall of the atomizing tube 200, the lower wall section 3212, and the bottom wall and the second inner peripheral wall 322 of the annular groove 320 jointly enclose to form the liquid storage tank 104. In addition, in an embodiment in which the liquid guiding cotton 500 penetrates into the liquid storage tank 104, a bottom end surface of the liquid guiding cotton 500 may also abut against the step surface 3213 to implement axial limitation.

In an aspect in which the sealing member 300 is disposed, the air inlet channel 310 penetrates through the sealing member 300 axially, and the second inner peripheral wall 322 is disposed around the air inlet channel 310.

In an aspect, referring to FIG. 3, FIG. 5, FIG. 8, and FIG. 9, the pressure relief channel 103 includes a plurality of sub-channels 1031 sequentially spaced from each other along the axial direction of the atomizing cavity 102. The sub-channels 1031 extend along the circumference of the atomizing cavity 102, and adjacent sub-channels 1031 are in communication with each other through a connection channel 1032. In this way, the sub-channels 1031 extend along the circumference of the atomizing cavity 102. On one hand, processing difficulty of the sub-channels 1031 can be reduced, and the sub-channels 1031 can better lock the atomizing substrate, thereby reducing liquid leakage. In an aspect, referring to FIG. 8, the sub-channels 1031 are successively connected head to tail. It means that a head end of a sub-channel 1031 is in communication with a previous sub-channel 1031 through the connection channel 1032, and a tail end of the sub-channel 1031 is in communication with a next sub-channel 1031 through the connection channel 1032, so that an atomizing substrate sequentially flows along the sub-channels 1031. For example, fluid flows from the entrance of the pressure relief channel 103 to the exit of the pressure relief channel 103 sequentially through the sub-channels 1031.

In an aspect, referring to FIG. 8, the pressure relief channel 103 further includes an inlet channel 1033 and an outlet channel 1034. In an embodiment in which the sealing member 300 is disposed, the sub-channels 1031 are all formed in the first inner peripheral wall 321. The sub-channels 1031 extend along the circumference of the first inner peripheral wall 321. The inlet channel 1033 extends from an upper surface of the sealing member 300 facing the liquid storage cavity 101 to an uppermost sub-channel 1031. The outlet channel 1034 extends from a lowermost sub-channel 1031 to the step surface 3213. The connection channel 1032, the inlet channel 1033, and the outlet channel 1034 all extend along the axial direction of the annular groove 320, thereby reducing processing difficulty of the pressure relief channel 103.

In an aspect, referring to FIG. 6 and FIG. 7, the liquid storage container 100 includes an outer board 110 and an inner board 120. A part of an outer side wall of the inner board 120 is integrally connected to an inner side wall of the outer board 110. Opposite two ends of the atomizing tube 200 are respectively inserted to the inner board 120 and the sealing member 300. The partition 130 is connected between the outer board 110 and the inner board 120. The connection groove 131 is formed at the bottom of the partition 130. The outer board 110, the inner board 120, and the atomizing tube 200 enclose to form the liquid storage cavity 101, the partition 130 divides the liquid storage cavity 101 into liquid storage sub-cavities 1011, and the inner board 120 encloses to form an air guiding channel 105 in communication with the atomizing cavity 102. The sub-channel 1031 does not penetrate through the entire circumference of the first inner peripheral wall 321. The sub-channel 1031 avoids a position where the outer board 110 and the inner board 120 are connected.

In this embodiment, the inner board 120 is disposed, so that the air guiding channel 105 can be formed, and there is no need to install an additional air guiding tube to form the air guiding channel 105. In addition, there is no need to increase the atomizing tube 200 to form the air guiding channel 105, as long as the length of the atomizing tube 200 can cover the heating element 400 and the liquid guiding cotton 500. Therefore, the length of the atomizing tube 200 is sufficiently reduced to reduce the costs of the atomizing tube 200.

In an aspect, referring to FIG. 5, the heating element 400 has a cylindrical shape, the heating element 400 is a ceramics heating element 400, and the liquid guiding cotton 500 covers the outer periphery of the heating element 400. A peripheral side wall of the atomizing tube 200 has a plurality of liquid inlet openings 210, each liquid inlet opening 210 is in communication with each liquid storage sub-cavity 1011, and the liquid inlet opening 210 is configured to guide an atomizing substrate in the liquid storage sub-cavity 1011 to the liquid guiding cotton 500 and the heating element 400.

In some other embodiments of this disclosure, the pressure relief channel 103 may be spirally extended along the axial direction of the atomizing cavity 102.

In some other embodiments of this disclosure, alternatively, the liquid guiding cotton may not be lengthened, and instead a back suction cotton is additionally disposed. A back suction cotton abutting against the liquid guiding cotton 500 is disposed in the liquid storage tank 104, communication between the liquid storage tank 104 and the liquid guiding cotton 500 is implemented by using the back suction cotton, an overflowing atomizing substrate of the liquid guiding cotton 500 is transmitted to the liquid storage tank 104 by using the back suction cotton, and the atomizing substrate in the liquid storage tank 104 is drawn back to the liquid guiding cotton 500 by using the back suction cotton. A material of the back suction cotton is the same as that of the liquid guiding cotton 500, and the back suction cotton and the liquid guiding cotton 500 both enclose to form a circle.

In an aspect, referring to FIG. 2 and FIG. 4, the atomizer 1 further includes a sealing cover 600, and the sealing cover 600 covers the top of the liquid storage cavity 101.

According to another aspect, this disclosure further provides an aerosol generating device, including a power supply component 2, a suction nozzle 3, and the atomizer 1, where the power supply component 2 is configured to supply power to the atomizer 1, and the suction nozzle 3 is in communication with the atomizer 1.

After being powered on, the atomizer 1 heats and atomizes the atomizing substrate to form aerosols, and the suction nozzle 3 is configured to discharge the aerosols so that a user can inhale.

Referring to FIG. 2 and FIG. 4, the power supply component 2 includes a battery 201, a circuit board 205, an air flow sensor 202, a battery rack 203, and a main housing 204. The battery 201 is electrically connected to the circuit board 205, the air flow sensor 202 is electrically connected to the circuit board 205, and the circuit board 205 is electrically connected to the heating element 400 by using a conductor. When a user sucks the suction nozzle 3, the air flow sensor 202 detects an air flow and feeds back the air flow to the circuit board 205. The circuit board 205 supplies power to the heating element 400. The heating element 400 generates heat to heat and atomize the atomizing substrate to form aerosols. External air enters the atomizing cavity 102 through the air inlet channel 310, and carries aerosols out through the air guiding channel 105 and the suction nozzle 3, so that the user can inhale.

The battery 201 is installed in the liquid storage container 100, and the battery 201 is transversely spaced from the liquid storage cavity 101. The battery rack 203 is installed below the liquid storage container 100. The circuit board 205 and the air flow sensor 202 are installed on the battery rack 203. The main housing 204 is sleeved outside the liquid storage container 100 and the battery rack 203. The suction nozzle 3 is installed at the top of the liquid storage container 100. The sealing cover 600 abuts between the suction nozzle 3 and the liquid storage container 100.

The foregoing descriptions are merely preferred embodiments of this disclosure, and are not intended to limit this disclosure. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of this disclosure shall fall within the protection scope of this disclosure.