US20250057241A1

US20250057241A1 - Atomizer and aerosol generating device

Info

Publication number: US20250057241A1
Application number: US18/718,804
Authority: US
Inventors: Weihua Qiu
Original assignee: Joyetech Shenzhen Electronics Co Ltd
Current assignee: Joyetech Shenzhen Electronics Co Ltd
Priority date: 2021-12-30
Filing date: 2022-09-28
Publication date: 2025-02-20
Also published as: WO2023124319A1

Abstract

Provided are an atomizer and an aerosol generating device; in the atomizer structure, a porous medium is arranged in a liquid storage cavity, the porous medium can adsorb an aerosol forming substrate in the liquid storage cavity, and the adsorbed aerosol forming substrate can be held in the porous medium. When the atomizer operates, the aerosol forming substrate held in the porous medium can be slowly and uniformly transmitted to a liquid inlet through the porous medium such that the speed at which the aerosol forming substrate flows into the atomizing cavity through the liquid inlet is reduced, and the situation that the speed of flow of the aerosol forming substrate in the liquid storage cavity entering the atomizing cavity is too high is prevented, thus effectively reducing the risk of liquid leakage.

Description

TECHNICAL FIELD

The present disclosure relates to the technical field of simulated smoking, and particularly relates to an atomizer and an aerosol generating device.

BACKGROUND

As a common simulated smoking product, aerosol generating devices usually include an atomizer and a power supply device electrically connected to the atomizer. The atomizer can heat and atomize the aerosol-forming substrate stored in the atomizer under the electric drive of the power supply device for the user to inhale to achieve the effect of simulating smoking.
Currently, in the atomizer structure of an aerosol generating device, the liquid storage cavity is generally in direct communication with the atomizing core through the liquid inlet. During the operation of the atomizer, the aerosol-forming substrate stored in the liquid storage cavity, under the action of its own gravity, usually causes the aerosol-forming substrate to flow into the atomizer core at a too fast flow rate, which may easily cause the atomizer to leak.

SUMMARY

Based on the above problems existing in the prior art, a first object of the embodiments of the present disclosure is to provide an atomizer to solve the problem in the prior art that the flow rate of the aerosol-forming substrate into the atomizer core is too fast, which easily causes liquid leakage in the atomizer.
In order to achieve the above object, the technical solution adopted by the present disclosure is: an atomizer is provided, including:

- a liquid storage member having a liquid storage cavity therein for storing an aerosol-forming substrate, wherein the liquid storage member is provided with a smoke outlet for the user to inhale smoke;
- an atomizing core provided in the liquid storage member, wherein an atomizing cavity in communication with the smoke outlet is formed inside the atomizing core, the atomizing core is provided with a liquid inlet in communication with the liquid storage cavity and the atomizing cavity; and
- a porous medium provided in the liquid storage cavity, wherein the porous medium is configured to adsorb the aerosol-forming substrate in the liquid storage cavity and hold the adsorbed aerosol-forming substrate in the porous medium;
- wherein the aerosol-forming substrate held in the porous medium can be transmitted to the liquid inlet through the porous medium to slow down the flow rate of the aerosol-forming substrate into the atomizing cavity through the liquid inlet.

Further, the porous medium is made of at least one of porous cotton liquid-conducting member, porous sponge liquid-conducting member, porous glass fiber liquid-conducting member, porous ceramic liquid-conducting member, and porous graphite liquid-conducting member.
Further, the porous medium is substantially columnar, the porous medium is provided with a receiving hole along its axial direction, the atomizing core is inserted into the receiving hole, the liquid inlet is located in the receiving hole, so that the porous medium covers the liquid inlet of the atomizing core.
Further, an outer peripheral surface of the porous medium abuts against an inner surface of the liquid storage cavity, a hole wall of the receiving hole abuts against an outer peripheral surface of the atomizing core.
Further, along an axial direction of the porous medium, a height of the porous medium is equal to 35%-50% of a height of the liquid storage cavity.
Further, the atomizer further includes a liquid-conducting layer sleeved at the outer peripheral surface of the atomizing core, the liquid-conducting layer covers the liquid inlet.
Further, the outer peripheral surface of the atomizing core is provided with a positioning groove for positioning the liquid-conducting layer, and the liquid-conducting layer is accommodated in the positioning groove.
Further, the atomizer further includes a mouthpiece provided at the top of the liquid storage member, and the smoke outlet is provided on the mouthpiece.
Further, the atomizing core includes an atomizing bracket located in the liquid storage member and a heating member for heating and atomizing the aerosol-forming substrate, the atomizing cavity is provided inside the atomizing bracket, the heating member is provided in the atomizing cavity, the atomizing bracket is provided with the liquid inlet.
Based on the above problems existing in the prior art, a second object of the embodiments of the present disclosure is to provide an aerosol generating device having the atomizer in any of the above solutions.
In order to achieve the above object, the technical solution adopted by the present disclosure is to provide an aerosol generating device including the atomizer provided by any of the above solutions.
One or more of the above technical solutions in the embodiments of the present disclosure, compared with the prior art, has at least one of the following beneficial effects:
The embodiment of the present disclosure provides an atomizer and an aerosol generating device. In the atomizer structure, a porous medium is provided in the liquid storage cavity, the porous medium can adsorb the aerosol-forming substrate in the liquid storage cavity and hold the adsorbed aerosol-forming substrate in the porous medium. When the atomizer is working, the aerosol-forming substrate held in the porous medium can be slowly and uniformly transmitted to the liquid inlet through the porous medium, to slow down the flow rate of the aerosol-forming substrate into the atomizing cavity through the liquid inlet, and prevent the aerosol-forming substrate in the liquid storage cavity from entering the atomizing cavity too fast, thereby effectively reducing the risk of liquid leakage. Furthermore, since the aerosol-forming substrate in the liquid storage cavity needs to be transmitted to the liquid inlet through the porous medium, to prevent the aerosol-forming substrate in the liquid storage cavity from entering the atomizing cavity directly through the liquid inlet, while slowing down the flow rate of the aerosol-forming substrate, thereby achieving the effect of uniform liquid introduction, which is beneficial to improving the atomizing effect. Moreover, by limiting the height of the porous medium, the liquid storage and liquid conduction capabilities of the porous medium are balanced.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to explain the technical solutions in the embodiments of the present disclosure more clearly, the drawings that need to be used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the disclosure, for those of ordinary skill in the art, other drawings can be obtained based on these drawings without exerting any creative effort.

FIG. 1 is a schematic cross-sectional structural view of an atomizer provided by an embodiment of the present disclosure;

FIG. 2 is another schematic cross-sectional structural view of the atomizer provided by the embodiment of the present disclosure;

FIG. 3 is an exploded view of the atomizer provided by the embodiment of the present disclosure;

FIG. 4 is a schematic three-dimensional structural diagram of the porous medium in the atomizer shown in FIG. 1 ;

FIG. 5 is a schematic cross-sectional structural view of an atomizer provided by another embodiment of the present disclosure;

FIG. 6 is a partial enlarged structural diagram of part A in FIG. 5 ;

FIG. 7 is a schematic cross-sectional structural view of an atomizer provided by another embodiment of the present disclosure;

FIG. 8 is a partial enlarged structural diagram of part B in FIG. 7 ;

FIG. 9 is a schematic cross-sectional structural view of the atomizer core in the atomizer shown in FIG. 7 .

Among them, the reference signs in the figures are:


	liquid storage member 1	cartridge housing 11
	cartridge base 12	liquid storage cavity 13
	smoke outlet 14	mouthpiece 15
	atomizing core 2	atomizing bracket 21
	heating member 22	liquid absorbing member 23
	liquid inlet 24	atomizing cavity 25
	ventilation pipe 3	first pipe 31
	second pipe 32	stopper 4
	liquid-conducting layer 5	porous medium 6
	sealing member 7	receiving hole 8
	positioning groove 9

DETAILED DESCRIPTION OF THE EMBODIMENTS

In order to make the technical problems, technical solutions and beneficial effects to be solved by this disclosure more clear, the disclosure will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only configured to explain the present disclosure and are not intended to limit the present disclosure.
It should be noted that when an element is referred to as being “connected to” or “disposed to” another element, it can be directly on another element or indirectly on that other element. When a component is said to be “connected to” another component, it can be directly connected to another element or indirectly connected to the other element.
In addition, the terms “first” and “second” are used for descriptive purposes only, it cannot be understood as indicating or implying the relative importance or implicitly indicating the quantity of the technical features indicated. Therefore, features defined as “first” and “second” may explicitly or implicitly include one or more of these features. In the description of the present disclosure, “multiple” means two or more, unless otherwise expressly and specifically limited. “Plural” means one or more than one, unless otherwise expressly and specifically limited.
In the description of the present disclosure, it should be understood that the orientations or positional relationships indicated by the terms “length”, “width”, “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outside”, etc. are based on the orientations or positional relationships shown in the accompanying drawings. This is only for the convenience of describing the present disclosure and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation of the present disclosure.
In the description of the present disclosure, it should be noted that, unless otherwise explicitly stipulated and limited, the terms “installed”, “mounted” and “connected” should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate element; it can be the internal connection between two elements or the interaction between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.
Reference throughout this specification to “an embodiment” or “one embodiment” means that a specific feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the phrases “in one embodiment,” “in some embodiments,” or “in some of the embodiments” appear in various places throughout this specification, and not all are referring to the same embodiment. In addition, the specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments.
Please refer to FIG. 1 to FIG. 9 together, the atomizer provided by the embodiment of the present disclosure is described. The atomizer provided by the embodiment of the present disclosure is suitable for an aerosol generating device, the aerosol generating device includes an atomizer and a power supply device electrically connected to the atomizer. When in use, the power supply device is configured to provide electrical energy to the atomizer. Under the action of electric drive, the atomizer heats and atomizes the aerosol-forming substrate stored in the atomizer for the user to inhale to achieve the effect of simulating smoking.
Please further refer to FIG. 1 , FIG. 5 and FIG. 7 , the atomizer provided by the embodiment of the present disclosure includes a liquid storage member 1, an atomizing core 2 and a porous medium 6. The liquid storage member 1 is provided with a liquid storage cavity 13 therein for storing the aerosol-forming substrate. The liquid storage member 1 is further provided with a smoke outlet 14 for the user to inhale smoke. Please further refer to FIG. 2 and FIG. 4 , in some embodiments, the liquid storage member 1 includes a columnar cartridge housing 11 and a cartridge base 12 assembled at the bottom opening of the cartridge housing 11. The top of the cartridge housing 11 is provided with a smoke outlet 14 for the user to inhale smoke. In order to enhance the sealing between the cartridge housing 11 and the cartridge base 12, a sealing member 7 is provided on the cartridge base 12. The sealing member 7 can be, but is not limited to, a rubber member or a silicone member. Please further refer to FIG. 5 and FIG. 7 , in some other embodiments, the atomizer can further include a mouthpiece 15 provided at the top of the liquid storage member 1, and a smoke outlet 14 is provided on the mouthpiece 15. Please further refer to FIG. 1 and FIG. 3 , in some other embodiments, the outer outline of the cartridge housing 11 is substantially cylindrical. The mouthpiece 15 is located at the top of the liquid storage member 1. The mouthpiece 15 is provided with a smoke outlet 14. The mouthpiece 15 and the cartridge housing 11 are integrally formed. Please further refer to FIG. 2 and FIG. 3 , the cartridge housing 11 is also provided with a liquid filling port 16 in communication with the liquid storage cavity 13. The liquid storage member 1 further includes a liquid filling plug 17 for opening or closing the liquid filling port 16.
Please further refer to FIG. 9 , the atomizing core 2 is located in the liquid storage member 1. An atomizing cavity 25 in communication with the smoke outlet 14 is formed inside the atomizing core 2. The atomizing core 2 is provided with a liquid inlet 24 that communicates with the liquid storage cavity 13 and the atomizing cavity 25. Please further refer to FIG. 6 , FIG. 8 and FIG. 9 , in some embodiments, the atomizing core 2 includes an atomizing bracket 21 and a heating member 22 for heating and atomizing the aerosol-forming substrate. The atomizing bracket 21 is located in the liquid storage member 1. An atomizing cavity 25 in communication with the smoke outlet 14 is provided inside the atomizing bracket 21. The heating member 22 is provided in the atomizing cavity 25. The atomizing bracket 21 is further provided with a liquid inlet 24 that communicates with the liquid storage cavity 13 and the atomizing cavity 25. In this way, the aerosol-forming substrate in the liquid storage cavity 13 can flow into the atomizing cavity 25 through the liquid inlet 24. After being powered on, the heating member 22 can heat and atomize the aerosol-forming substrate provided by the liquid storage cavity 13 to form smoke in the atomizing cavity 25. When the user sucks, the external air flows into the atomizing cavity 25 through an air inlet hole on the cartridge base 12; after mixing with the smoke in the atomizing cavity 25, it reaches the user's mouth through the smoke outlet 14, so that the user can get the effect of simulating smoking. The heating member 22 can be, but is not limited to, a metal heating member with a mesh structure such as a steel mesh. The heating member 22 can also be a ceramic heating member with liquid absorption capability or a heating wire wrapped with liquid-absorbent cotton. Please further refer to FIG. 9 , in some other embodiments, the atomizing core 2 further includes a liquid absorbing member 23 for adsorbing the aerosol-forming substrate and transferring the aerosol-forming substrate to the heating member 22. The liquid absorbing member 23 is provided in the atomizing cavity 25. It can be understood that the liquid absorbing member 23 can be, but is not limited to, liquid-absorbent cotton or porous ceramics.
The porous medium 6 is provided in the liquid storage cavity 13, and the porous medium 6 can adsorb the aerosol-forming substrate in the liquid storage cavity 13. The porous medium 6 can hold or store the adsorbed aerosol-forming substrate in the porous medium 6. When the atomizer is working, the aerosol-forming substrate held in the porous medium 6 can be transmitted to the liquid inlet 24 through the porous medium 6 to slow down the flow rate of the aerosol-forming substrate into the atomizing cavity 25 through the liquid inlet 24. It can be understood that the porous medium 6 mentioned in the embodiment of the present disclosure can be, but is not limited to, made of at least one of porous cotton liquid-conducting member, porous sponge liquid-conducting member, porous glass fiber liquid-conducting member, porous ceramic liquid-conducting member, and porous graphite liquid-conducting member. When the porous medium 6 is made of porous cotton liquid-conducting member, the porous cotton liquid-conducting member can be made of tobacco cotton or polymer integrated cotton with good liquid-holding performance, strong liquid storage capacity, and good liquid-conducting performance. Of course, the porous cotton liquid-conducting member can also be compressed cotton, etc.
Compared with the prior art, the atomizer provided by the embodiment of the present disclosure is provided with a porous medium 6 in the liquid storage cavity 13. The porous medium 6 can adsorb the aerosol-forming substrate in the liquid storage cavity 13 and hold the adsorbed aerosol-forming substrate in the porous medium 6. When the atomizer is working, the aerosol-forming substrate held in the porous medium 6 can be slowly and uniformly transmitted to the liquid inlet 24 through the porous medium 6, to slow down the flow rate of the aerosol-forming substrate into the atomizing cavity 25 through the liquid inlet 24, and prevent the aerosol-forming substrate in the liquid storage cavity 13 from entering the atomizing cavity 25 too fast, thereby effectively reducing the risk of liquid leakage. Furthermore, since the aerosol-forming substrate in the liquid storage cavity 13 needs to be transmitted to the liquid inlet 24 through the porous medium 6, to prevent the aerosol-forming substrate in the liquid storage cavity 13 from entering the atomizing cavity 25 directly through the liquid inlet 24, while slowing down the flow rate of the aerosol-forming substrate, thereby achieving the effect of uniform liquid introduction, which is beneficial to improving the atomizing effect.
Please further refer to FIG. 2 , FIG. 3 and FIG. 4 , in some embodiments, the porous medium 6 is substantially columnar. The porous medium 6 is provided with a receiving hole 8 along its axial direction. The atomizing core 2 is inserted into the receiving hole 8, and the liquid inlet 24 is located in the receiving hole 8. Thus, when the porous medium 6 is mounted on the atomizing core 2, the porous medium 6 can cover the liquid inlet 24 of the atomizing core 2, so that the liquid storage cavity 13 cannot be directly in communication with the liquid inlet 24, to prevent the aerosol-forming substrate in the liquid storage cavity 13 from entering the atomizing cavity 25 directly through the liquid inlet 24. It can be understood that the outer contour of the porous medium 6 can be in the shape of a cylinder, an elliptical cylinder or a prism, etc. Moreover, the shape and size of the porous medium 6 is adapted to the shape and size of the liquid storage cavity 13. Please further refer to FIG. 1 , FIG. 5 and FIG. 7 , in some embodiments, the outer peripheral surface of the porous medium 6 abuts against the inner surface of the liquid storage cavity 13, the hole wall of the receiving hole 8 abuts against the outer peripheral surface of the atomizing core 2, to balance the liquid storage and liquid conduction capabilities of the porous medium 6, and ensure that the aerosol-forming substrate can be stably and uniformly transmitted to the liquid inlet 24, which can also slow down the flow rate of the aerosol-forming substrate into the atomizing cavity 25 through the liquid inlet 24, thereby achieving a good liquid leakage prevention effect.
Please further refer to FIG. 1 and FIG. 2 , in some embodiments, along the axial direction of the porous medium 6, the height H1 of the porous medium 6 is equal to 35%-50% of the height H2 of the liquid storage cavity 13, to balance the liquid storage and liquid conduction capabilities of the porous medium 6, and ensure that the aerosol-forming substrate can be stably and uniformly transmitted to the liquid inlet 24, which can also slow down the flow rate of the aerosol-forming substrate entering the atomizing cavity 25 through the liquid inlet 24, thereby achieving a good liquid leakage prevention effect. Understandably, please further refer to FIG. 2 , the height H1 of the porous medium 6 is the height extending along its axial direction, the height H2 of the liquid storage cavity 13 is the height extending along the axial direction of the porous medium 6.
Please further refer to FIG. 1 , FIG. 5 and FIG. 7 , in some embodiments, the atomizer further includes a liquid-conducting layer 5 sleeved at the outer peripheral surface of the atomizing core 2. The liquid-conducting layer 5 covers the liquid inlet 24, to prevent the aerosol-forming substrate in the liquid storage cavity 13 from flowing directly to the liquid inlet 24, which can play a role in buffering the liquid inlet rate, such that the aerosol-forming substrate in the liquid storage cavity 13 uniformly enters the atomizing cavity 25, which can help reduce the risk of leakage to a certain extent. In use, the porous medium 6 only needs to be mounted on the outside of the liquid-conducting layer 5, so that the uniform stability of the porous medium 6 in transmitting the aerosol-forming substrate to the liquid inlet 24 is enhanced, and the aerosol-forming substrate in the liquid storage cavity 13 is more uniformly and fully supplied to the atomizing cavity 25. Please further refer to FIG. 2 and FIG. 3 , in some embodiments, the outer peripheral surface of the atomizing core 2 is provided with a positioning groove 9 for positioning the liquid-conducting layer 5, and the liquid-conducting layer 5 is accommodated in the positioning groove 9, to enhance the stability of the installation of the liquid-conducting layer 5, effectively slow down the flow rate of the aerosol-forming substrate entering the atomizing cavity 25 through the liquid inlet 24, and enhance the uniformity and stability of the aerosol-forming substrate entering the atomizing cavity 25. Specifically, the positioning groove 9 can be formed at the outer peripheral surface of the atomizing bracket 21, and the liquid-conducting layer 5 is several layers of liquid-conducting cotton wrapped around the atomizing core 2. It should be noted that in some other embodiments, the porous medium 6 can also be provided integrally with the liquid-conducting layer 5. In some other embodiments, the liquid-conducting layer 5 can also be omitted, and the porous medium 6 can be provided alone.
Please further refer to FIG. 5 and FIG. 7 , in some other embodiments, the atomizer further includes a ventilation pipe 3 in communication with the atomizing cavity 25 and the smoke outlet 14. The smoke in the atomizing cavity 25 can be introduced into the smoke outlet 14 through the ventilation pipe 3. It is understood that the ventilation pipe 3 may be, but is not limited to, a fiberglass pipe. Because fiberglass pipe is elastic, when the fiberglass pipe is sleeved on the outside of the atomizing bracket 21, the inner wall of the fiberglass pipe can fit closely with the outer wall of the atomizing bracket 21, to avoid assembly gaps existed between the atomizing bracket 21 and the ventilation pipe 3. It should be noted that, please further refer to FIG. 1 , FIG. 5 and FIG. 7 , the liquid storage member 1 includes a cartridge housing 11 and a cartridge base 12, the atomizing bracket 21 is located in the cartridge housing 11, and the atomizing bracket 21 is supported and fixed on the cartridge base 12. Therefore, the inside of the cartridge housing 11 other than the atomizing bracket 21 and the ventilation pipe 3 is defined as the liquid storage cavity 13. It should be noted that the atomizing bracket 21 can be, but is not limited to, a bracket with a tubular structure.
Please further refer to FIG. 6 and FIG. 8 , the first end of the ventilation pipe 3 is in communication with the smoke outlet 14, and the second end of the ventilation pipe 3 is sleeved on the outside of the atomizing bracket 21. Since the second end of the ventilation pipe 3 is sleeved on the outside of the atomizing bracket 21, a close surface contact can be formed between the inner wall of the ventilation pipe 3 and the outer side of the atomizing bracket 21, to enhance the stability between the ventilation pipe 3 and the atomizing bracket 21, and avoid assembly gaps between the ventilation pipe 3 and the atomizing bracket 21 to reduce the risk of liquid leakage. Please refer to FIG. 5 , the atomizing bracket 21 is provided with a stopper 4 for abutting against the second end of the ventilation pipe 3. When the second end of the ventilation pipe 3 is sleeved on the outside of the atomizing bracket 21, the second end of the ventilation pipe 3 can be resisted by the stopper 4, and the ventilation pipe 3 can be positioned on the atomizing bracket 21, so that the connection stability between the ventilation pipe 3 and the atomizing bracket 21 is further enhanced. In addition, when the stopper 4 abuts against the second end of the ventilation pipe 3, the stopper 4 can cover the port at the second end of the ventilation pipe 3 to seal the port at the second end of the ventilation pipe 3, such that the aerosol-forming substrate cannot leak through the port at the second end of the ventilation tube 3 to the possible assembly gaps between the ventilation tube 3 and the atomizing bracket 21, which can prevent the aerosol-forming substrate from leaking through the possible assembly gaps between the ventilation tube 3 and the atomizing bracket 21.
Please further refer to FIG. 5 , in some embodiments, the ventilation pipe 3 includes a first pipe 31 and a second pipe 32 connected to the first pipe 31. One end of the first pipe 31 away from the second pipe 32 extends to the smoke outlet 14, one end of the second pipe 32 away from the first pipe 31 is sleeved on the outside of the atomizing bracket 21, and the stopper 4 abuts against one end of the second pipe 32 away from the first pipe 31. In this embodiment, the ventilation pipe 3 includes a first pipe 31 and a second pipe 32, one end of the first pipe 31 away from the second pipe 32 extends to the smoke outlet 14, one end of the second pipe 32 away from the first pipe 31 is sleeved on the outside of the atomizing bracket 21, and the other end of the first pipe 31 is connected with the other end of the second pipe 32. It can be understood that the other end of the first pipe 31 and the other end of the second pipe 32 can be connected through an integrally formed structure, or can also be fixedly connected by welding. While the stopper 4 abuts against the end of the second pipe 32 away from the first pipe 31, the stopper 4 can cover the port of the end of the second pipe 32 away from the first pipe 31, to seal the port of the end of the second pipe 32 away from the first pipe 31, which can avoid leakage of the aerosol-forming substrate. It should be noted that the end of the first pipe 31 away from the second pipe 32 constitutes the first end of the ventilation pipe 3, and the end of the second pipe 32 away from the first pipe 31 constitutes the second end of the ventilation pipe 3.
Please further refer to FIG. 7 , in some other embodiments, the ventilation pipe 3 includes a first pipe 31 and a second pipe 32, one end of the first pipe 31 extends to the smoke outlet 14, and the other end of the first pipe 31 is inserted into the inside of the atomizing bracket 21. One end of the second pipe 32 is sleeved on the outside of the first pipe 31, and the other end of the second pipe 32 is sleeved on the outside of the atomizing bracket 21. The stopper 4 abuts against the other end of the second tube 32. In this embodiment, the ventilation pipe 3 includes a first pipe 31 and a second pipe 32. One end of the first pipe 31 extends to the smoke outlet 14, and the other end of the first pipe 31 is inserted into the inside of the atomizing bracket 21. The first pipe 31 defines an airflow channel in communication with the atomizing cavity 25 and the smoke outlet 14. One end of the second pipe 32 is sleeved on the outside of the first pipe 31, and the other end of the second pipe 32 is sleeved on the outside of the atomizing bracket 21, which can seal the assembly gaps between the first pipe 31 and the atomizing bracket 21, thereby reducing the risk of liquid leakage. In addition, while the stopper 4 abuts against the other end of the second pipe 32, the stopper 4 can cover the port at the other end of the second pipe 32, to seal the port at the other end of the second pipe 32, which can avoid leakage of the aerosol-forming substrate. It should be noted that the end of the first pipe 31 extending to the smoke outlet 14 constitutes the first end of the ventilation pipe 3, and the end of the second pipe 32 sleeved on the outside of the atomizing bracket 21 constitutes the second end of the ventilation pipe 3.
It can be understood that in some other embodiments, in order to enhance the sealing performance of the second pipe 32, the second pipe 32 is an elastic sealing sleeve. Of course, the first pipe 31 or the second pipe 32 is an elastic fiberglass pipe, such that the first pipe 31 or the second pipe 32 closely fits the corresponding side wall of the atomizing bracket 21, to avoid assembly gaps and effectively prevent leakage. It should be noted that the first pipe 31 can be a fiberglass pipe, and the second pipe 32 can also be a fiberglass pipe.
Please further refer to FIG. 9 , in some embodiments, the stopper 4 is an annular stopping plate protruding from the outer wall of the atomizing bracket 21. The annular stopping plate can cover the port at the second end of the ventilation pipe 3. In can be understood, in some other embodiments, the annular stopping plate can further be provided with a sealing groove or sealing gasket for sealing the port at the second end of the ventilation pipe 3, to further improve the sealing performance for sealing the port at the second end of the ventilation pipe 3. It can be understood that the stopper 4 can be, but is not limited to, an annular stopping plate protruding from the outer wall of the atomizing bracket 21, the stopper 4 can also be a sealing sleeve or sealing ring provided at the outer wall of the atomizing bracket 21.
The embodiment of the present disclosure also provides an aerosol generating device, the aerosol generating device includes the atomizer provided in any of the above embodiments. Since the aerosol generating device has all the technical features of the atomizer provided in any of the above embodiments, it has the same technical effects as the above atomizer.
The above descriptions are only preferred embodiments of the present disclosure and are not intended to limit the present disclosure. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. An atomizer, comprising:

a liquid storage member having a liquid storage cavity therein for storing an aerosol-forming substrate, wherein the liquid storage member is provided with a smoke outlet for the user to inhale smoke;

an atomizing core provided in the liquid storage member, wherein an atomizing cavity in communication with the smoke outlet is formed inside the atomizing core, the atomizing core is provided with a liquid inlet in communication with the liquid storage cavity and the atomizing cavity; and

a porous medium provided in the liquid storage cavity, wherein the porous medium is configured to adsorb the aerosol-forming substrate in the liquid storage cavity and hold the adsorbed aerosol-forming substrate in the porous medium;

wherein the aerosol-forming substrate held in the porous medium can be transmitted to the liquid inlet through the porous medium to slow down the flow rate of the aerosol-forming substrate into the atomizing cavity through the liquid inlet.

2. The atomizer as claimed in claim 1, wherein the porous medium is made of at least one of porous cotton liquid-conducting member, porous sponge liquid-conducting member, porous glass fiber liquid-conducting member, porous ceramic liquid-conducting member, and porous graphite liquid-conducting member.

3. The atomizer as claimed in claim 1, wherein the porous medium is substantially columnar, the porous medium is provided with a receiving hole along its axial direction, the atomizing core is inserted into the receiving hole, the liquid inlet is located in the receiving hole, so that the porous medium covers the liquid inlet of the atomizing core.

4. The atomizer as claimed in claim 3, wherein an outer peripheral surface of the porous medium abuts against an inner surface of the liquid storage cavity, a hole wall of the receiving hole abuts against an outer peripheral surface of the atomizing core.

5. The atomizer as claimed in claim 3, wherein along an axial direction of the porous medium, a height of the porous medium is equal to 35%-50% of a height of the liquid storage cavity.

6. The atomizer as claimed in claim 1, wherein the atomizer further comprises a liquid-conducting layer sleeved at the outer peripheral surface of the atomizing core, the liquid-conducting layer covers the liquid inlet.

7. The atomizer as claimed in claim 6, wherein the outer peripheral surface of the atomizing core is provided with a positioning groove for positioning the liquid-conducting layer, and the liquid-conducting layer is accommodated in the positioning groove.

8. The atomizer as claimed in claim 1, wherein the atomizer further comprises a mouthpiece provided at the top of the liquid storage member, and the smoke outlet is provided on the mouthpiece.

9. The atomizer as claimed in claim 1, wherein the atomizing core comprises an atomizing bracket located in the liquid storage member and a heating member for heating and atomizing the aerosol-forming substrate, the atomizing cavity is provided inside the atomizing bracket, the heating member is provided in the atomizing cavity, the atomizing bracket is provided with the liquid inlet.

10. An electronic cigarette, comprising the atomizer as claimed in claim 1.

11. The atomizer as claimed in claim 1, wherein along an axial direction of the porous medium, a height of the porous medium is equal to 35%-50% of a height of the liquid storage cavity.

12. The atomizer as claimed in claim 4, wherein along an axial direction of the porous medium, a height of the porous medium is equal to 35%-50% of a height of the liquid storage cavity.

13. The atomizer as claimed in claim 6, wherein the liquid-conducting layer is several layers of liquid-conducting cotton wrapped around the atomizing core.

14. The atomizer as claimed in claim 9, wherein the atomizer further comprises a ventilation pipe in communication with the atomizing cavity and the smoke outlet, a first end of the ventilation pipe is in communication with the smoke outlet, and a second end of the ventilation pipe is sleeved on the outside of the atomizing bracket.

15. The atomizer as claimed in claim 14, wherein the atomizing bracket is provided with a stopper configured for abutting against the second end of the ventilation pipe.

16. The atomizer as claimed in claim 15, wherein the stopper is an annular stopping plate protruding from an outer wall of the atomizing bracket.