EP4537688A1

EP4537688A1 - Electronic atomization device and atomizer

Info

Publication number: EP4537688A1
Application number: EP24203232.4A
Authority: EP
Inventors: Chao Gao; Fengwen Lu; Weidong Zhou; Xinyu Wang; Yingming Liu
Original assignee: Shenzhen Smoore Technology Ltd
Current assignee: Shenzhen Smoore Technology Ltd
Priority date: 2023-09-27
Filing date: 2024-09-27
Publication date: 2025-04-16
Also published as: US20250098753A1; CN221382552U

Abstract

The present disclosure relates to an electronic atomization device and an atomizer. The atomizer includes a liquid storage cavity and an atomization base arranged opposite to the liquid storage cavity and in fluid communication with the liquid storage cavity; an accommodation cavity is arranged in the atomization base, and an air exchange member communicating with an outside is arranged in the accommodation cavity; a first opening is arranged in the atomization base, and the first opening is in airflow communication with the air exchange member and the liquid storage cavity. The air exchange member can exchange gas with the liquid storage cavity through the first opening, thereby alleviating the problem of negative pressure in the liquid storage cavity.

Description

FIELD

The present disclosure relates to the field of atomization, and in particular, to an electronic atomization device and an atomizer.

BACKGROUND

An electronic atomization device is an electronic device that heats and atomizes a liquid medium to generate an aerosol that can be absorbed by the human body. Generally, the electronic atomization device includes a liquid storage cavity configured to store a liquid medium, and a heating element configured to heat and atomize the liquid medium. The liquid medium in the liquid storage cavity and the heating element are generally in liquid communication through a liquid-conducting channel or a liquid-conducting medium (such as a cotton core or another porous material).
As the liquid in the liquid storage cavity is consumed, a relatively negative pressure may be generated in the liquid storage cavity, and the liquid cannot flow to the heating element in time, which may generate problems such as dry heating of the heating element and the liquid-conducting medium, and scorched smell.

SUMMARY

A technical problem to be resolved in the present disclosure is to provide an improved electronic atomization device and an atomizer.
A technical solution adopted by the present disclosure to resolve the technical problem thereof is to provide an atomizer, including a liquid storage cavity and an atomization base, where the atomization base is arranged opposite to and in fluid communication with the liquid storage cavity; an accommodation cavity is arranged in the atomization base, and an air exchange member communicating with an outside is arranged in the accommodation cavity; and a first opening is arranged in the atomization base, and the first opening is in airflow communication with the air exchange member and the liquid storage cavity.
In some embodiments, the atomizer further includes a seal member, the seal member is sleeved on the atomization base, and a gap for airflow communication with the liquid storage cavity is reserved between the seal member and the atomization base; and
the first opening is in airflow communication with the gap.
In some embodiments, the atomization base includes an end wall arranged toward the liquid storage cavity; the accommodation cavity has a bottom wall arranged toward the end wall; and
the air exchange member includes a second opening arranged in the accommodation cavity, and a first set interval is reserved between the second opening and the bottom wall.
In some embodiments, a distance from the first opening to the end wall is less than a distance from the bottom wall to the end wall.
In some embodiments, the atomization base includes a side wall connected to the end wall; and
the first opening is arranged on the side wall.
In some embodiments, the air exchange member has a minimum cross-sectional dimension at the second opening.
In some embodiments, the atomization base includes an atomization cavity, and the accommodation cavity and the atomization cavity are liquid-separately arranged from each other.
In some embodiments, the air exchange member includes a columnar structure with both ends penetrating.
In some embodiments, the atomizer further includes an air inlet channel communicating with the outside, and the air exchange member is in communication with the air inlet channel.
The present disclosure further provides an electronic atomization device, including the atomizer described in the present disclosure and a power supply assembly connected to the atomizer.
By implementing the electronic atomization device and the atomizer in the present disclosure, the following beneficial effects are achieved: In the atomizer, the air exchange member in communication with the outside is arranged in the accommodation cavity of the atomization base, and the first opening in airflow communication with the air exchange member and the liquid storage cavity is formed on the atomization base, so that the air exchange member can exchange gas with the liquid storage cavity through the first opening, thereby alleviating the problem of negative pressure in the liquid storage cavity.

BRIEF DESCRIPTION OF THE DRAWINGS

The present disclosure is further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

FIG. 1 is a schematic structural diagram of an electronic atomization device according to some embodiments of the present disclosure;
FIG. 2 is a cross-sectional view of the electronic atomization device shown in FIG. 1;
FIG. 3 is a schematic structural exploded view of the electronic atomization device shown in FIG. 1;
FIG. 4 is a cross-sectional view of an atomization assembly of the electronic atomization device shown in FIG. 3;
FIG. 5 is a schematic structural diagram of an atomization base of the atomization assembly shown in FIG. 4;
FIG. 6 is a cross-sectional view of the atomization base shown in FIG. 5; and
FIG. 7 is a cross-sectional view of the atomization base shown in FIG. 6 from another angle.

DETAILED DESCRIPTION

To have a clearer understanding of the technical features, objectives, and effects of the present disclosure, specific implementations of the present disclosure are described in detail with reference to the accompanying drawings. In the following description, it should be understood that orientation or position relationships indicated by "top", "bottom", "inner", and "outer" are based on orientation or position relationships shown in the accompanying drawings and structures and operations in specific orientations, and are used only for ease of description of the technical solution, rather than indicating that the mentioned device or element must have a particular orientation. Therefore, such terms should not be construed as a limitation to the present disclosure.
It should be further noted that, unless otherwise explicitly specified and limited, the terms such as "mount", "connect", "fix", and "arrange" should be understood in a broad sense. For example, a connection may be a fixed connection, a detachable connection, or an integral connection; or the connection may be a mechanical connection or an electrical connection; or the connection may be a direct connection, an indirect connection through an intermediate medium, internal communication between two components, or an interaction relationship between two components. When an element is referred to as being "above" or "below" another element, the element may be located "directly" or "indirectly" above the another element, or one or more intervening elements may alternatively be present. The terms such as "first", "second", and "third" are merely intended to facilitate description of the technical solutions, and cannot be understood as indicating or implying relative importance or implying a quantity of indicated technical features. Therefore, features defined by "first", "second", and "third" may explicitly or implicitly include one or more of the features. A person of ordinary skill in the art can understand specific meanings of the terms in the present disclosure according to specific situations.
FIG. 1 shows an electronic atomization device according to some embodiments of the present disclosure. The electronic atomization device may be configured to atomize a liquid medium. The liquid medium is an aerosol-forming medium that can generate an aerosol for a user to inhale when being heated. The liquid medium includes an e-liquid, a medicine liquid, or the like. The electronic atomization device has advantages of being less prone to encounter liquid leaking and dry heating.
As shown in FIG. 1, further, in some embodiments, the electronic atomization device includes an atomizer 100. The atomizer 100 is configured to atomize a liquid medium. The power supply assembly is mechanically and/or electrically connected to the atomizer 100, and is configured to supply power to the atomizer 100.
As shown in FIG. 2 and FIG. 3, the atomizer 100 includes an atomization housing 10 and an atomization assembly 20. The atomization housing 10 is sleeved on the outer periphery of at least a part of the atomization assembly 20, is configured to accommodate the atomization assembly 20, and is further configured to accommodate a liquid medium. The atomization assembly 20 is configured to heat the liquid medium in the atomization housing 10 to generate an aerosol.
Further, in some embodiments, the atomization housing 10 includes a housing 11 and an airway tube 12. The housing 11 is of a flat cylindrical structure, and is generally rectangular in cross section. The airway tube 12 is arranged in the housing 11, is arranged extending in the height direction of the housing 11, and is integrally formed with the housing 11. The airway tube 12 is a two-end through structure, an air outlet channel 121 for outputting an aerosol is formed on the inner side, an inhalation port 122 is arranged on one end, and an air vent 123 communicating with the atomization assembly 20 is arranged on the other end. The end of the airway tube 12 arranged with the air vent 123 is inserted on the atomization assembly 20. The atomization housing 10 has a liquid storage cavity 13. The liquid storage cavity 13 is located at the outer periphery of the airway tube 12 and is configured to store a liquid medium.
As shown in FIG. 2 to FIG. 4, further, in some embodiments, the atomization assembly 20 includes a base 21, an atomization base 22, and a heating element 23. The base 21 is inserted into the housing 11 from the end away from the inhalation port and is detachably assembled with the atomization base 22. For example, the base 21 may be interference-fitted or snap-fitted with the atomization base 22. The atomization base 22 is sleeved on the base 21, and cooperates with the base 21 to form an atomization cavity 2211. The heating element 23 is mounted on the atomization base 22, and is configured to heat the liquid medium in the liquid storage cavity 13 to atomize the liquid medium to generate an aerosol.
Further, in some embodiments, the base 21 includes a base body 211, and a support portion 212 arranged on the base body 211 to mate with the atomization base 22. An air inlet 2111 is formed at the central axis of the base body 211, and the support portion 212 supports the atomization base 22. A clamping boss 2121 is arranged on the support portion 212, and the clamping boss 2121 is configured to clamp with the housing 11. An air inlet column 213 is arranged in the base 21. The air inlet column 213 interfaces with the air inlet 2111 and communicates with the air inlet 2111. At least a part of an air inlet channel 2131 is formed inside the air inlet column 213, for external gas to enter the atomization base 22.
As shown in FIG. 4 to FIG. 7, the atomization base 22 includes an accommodation portion 221 in some embodiments. A part of an accommodating cavity 2210 is formed inside the accommodation portion 221. The accommodating cavity 2210 is configured to accommodate the heating element 23. The atomization base 22 includes an atomization cavity 2211. The atomization cavity 2211 is arranged in the accommodation portion 221, communicates with the accommodating cavity 2210, and communicates with the air inlet channel 2131. In some embodiments, a communication port 2212 is formed at the end of the accommodation portion 221 arranged opposite to the base 221. The communication port 2212 is in communication with the atomization cavity 2211. By providing the communication port 2212, it may be convenient for the air exchange member 226 to exchange gas with the outside.
In some embodiments, the atomization base 22 includes a body 222 arranged at the outer periphery of the accommodation portion 221. The body 222 may include an end wall 22a and a side wall 22b. The end wall 22a is arranged toward the liquid storage cavity 13, and the side wall 22b is connected to the end wall 22a and extends toward the base 21 in the direction perpendicular to the end wall 22a. The side wall 22b is spaced from a part of the outer periphery of the accommodation portion 221, and the minimum distance from the side wall 22b to the base 21 is greater than the minimum distance from the accommodation portion 221 to the base 21.
The atomization base 22 further includes a columnar body 223 arranged between the accommodation portion 221 and the side wall 22b, and one end of the columnar body 223 is connected to the end wall 22a. In some embodiments, there may be two columnar bodies 223. Certainly, it may be understood that in some other embodiments, the quantity of columnar bodies 223 is not limited to two, and may be one or greater than two. In some embodiments, the atomization base 22 includes the accommodation cavity 2231 for accommodating a buffer liquid medium. The accommodation cavity 2231 is formed in the columnar body 223. In some embodiments, the accommodation cavity 2231 has a bottom wall 2232. The bottom wall 2232 is arranged toward the end wall 22a. In some embodiments, the end wall 22a is arranged with a fourth opening 2233 arranged opposite to the accommodation cavity 2231. The fourth opening 2233 is arranged opposite to the bottom wall 2232. In some embodiments, the accommodation cavity 2231 and the atomization cavity 2211 are liquid-separately arranged with the outer wall of the cylindrical body 223. In other words, the fluid in the accommodation cavity 2231 does not easily flow to the atomization cavity 2211, thereby reducing the risk of liquid leaking.
In some embodiments, the atomization base 22 further includes an atomization hole 224. The atomization hole 224 is formed on the end wall 22a, is located at the central axis of the end wall 22a, and is in communication with the atomization cavity 2211. The airway tube 12 is inserted into the atomization hole 224.
In some embodiments, the atomization base 22 further includes a liquid flowing hole 225. The liquid flowing hole 225 is formed on the end wall 22a and communicates with the accommodating cavity 2210. The liquid flowing hole 225 is located outside the atomization hole 224 and communicates with the liquid storage cavity 13. The liquid medium in the liquid storage cavity 13 may be transferred to the accommodating cavity 2210 through the liquid flowing hole 225.
In some embodiments, the atomization base 22 includes an air exchange member 226, and the air exchange member 226 is located on one side of the atomization hole 224. The air exchange member 226 is specifically arranged in the accommodation cavity 2231, and is configured to perform air exchange in the liquid storage cavity 13, so as to relieve negative pressure in the liquid storage cavity 13. The air exchange member 226 is arranged in a one-to-one correspondence with the accommodation cavity 2231. The air exchange member 226 is of a cylindrical structure with both ends penetrating, and may be located at the central axis of the accommodation cavity 2231. One end meets the bottom wall 2232, and the other end extends toward the direction of the fourth opening 2233. Specifically, the air exchange member 226 may be substantially circular in cross section, and may be a circular table structure with the radial size gradually decreasing toward the fourth opening 2233.
In some embodiments, the air exchange member 226 has a second opening 2261 and a third opening 2262, where the second opening 2261 is located in the accommodation cavity 2231 and is arranged toward the fourth opening 2233. A first set interval is reserved between the second opening 2261 and the bottom wall 2232. That is, the second opening 2261 may be arranged higher than the bottom wall 2232, thereby preventing or reducing the liquid medium in the accommodation cavity 2231 from leaking out of the second opening 2261. The distance from the second opening 2261 to the end wall 22a is less than the distance from the bottom wall 2232 to the end wall 22a. In other words, the axial length of the air exchange member 226 is less than the depth of the accommodation cavity 2231. The third opening 2262 is arranged opposite to the second opening 2261 and communicates with each other. The third opening 2262 is located on the bottom wall 2232. The air exchange member 226 communicates with the air inlet channel 2131 through the third opening 2262 and the communication port 2212, so that the third opening 2262 can communicate with the outside. At least a part of an air exchange channel is formed between the third opening 2262 and the second opening 2261. The cross-sectional size of the air exchange channel between the third opening 2262 and the second opening 2261 gradually decreases toward the second opening 2261, so that the air exchange member 226 has a minimum cross-sectional size at the second opening 2261, thereby facilitating gas flow while alleviating liquid leakage.
In some embodiments, a first opening 227 is formed on the atomization base 22, and the first opening 227 is arranged on one side of the side wall 22b of the atomization base 22 in the accommodation cavity 2231. The first opening 227 may communicate with the accommodation cavity 2231, and then communicate with the air exchange member 226. In some embodiments, the first opening 227 is in direct or indirect communication with the liquid storage cavity 13. The air exchange member 226 is in airflow communication with the liquid storage cavity 13 through the first opening 227, so that the air exchange member can perform airflow exchange with the liquid storage cavity 13, thereby alleviating negative pressure in the liquid storage cavity 13. The distance from the first opening 227 to the end wall 22a is smaller than the distance from the bottom wall 2232 to the end wall 22a. That is, the first opening 227 is arranged higher than the bottom wall 2232, thereby preventing at least a part of the liquid medium in the accommodation cavity 2231 from leaking out.
In some embodiments, a channel 228 for liquid storage and air exchange is arranged on the atomization base 22. The channel 228 is arranged on the side wall 22b and extends along the circumferential extension of the atomization base 22. The channel 228 may be of a labyrinth design, and communicates with the first opening 227 and the liquid storage cavity 13. The first opening 227 may communicate with the liquid flowing hole 225 by using the channel 228, and further communicate with the liquid storage cavity 13. The air exchange member 226 exchanges airflow with the liquid storage cavity 13 through the first opening 227 and the channel 228 in sequence. The liquid medium leaked from the liquid storage cavity 13 may flow into the accommodation cavity 2231 through the channel 228 and the first opening 227, or may be partially stored in the channel 228. A liquid outlet 229 may be formed on the side wall 22b, for outputting the liquid medium in the accommodation cavity 2231 to the channel 228.
In some embodiments, the heating element 23 is in the accommodating cavity 2210. In some embodiments, the heating element 23 may include a porous body and a heating body arranged on the porous body. The porous body may be a ceramic porous body. In some other embodiments, the porous body may alternatively be a cotton core.
In some embodiments, the atomization assembly 20 further includes a seal member 24. The seal member 24 is sleeved on the atomization base 22, and is configured to connect the atomization base 22 and the atomization housing 10 in a sealed manner. In some embodiments, the seal member 24 includes a first seal portion 241 and a second seal portion 242. The first seal portion 241 covers the end wall 22a. A first through hole 2410 is arranged on the first seal portion 241. The first through hole 2410 is arranged corresponding to and communicates with the atomization hole 224. A third seal portion 2411 is arranged on the side of the first seal portion 241 arranged opposite to the liquid storage cavity 13. The third seal portion 2411 is arranged in a one-to-one correspondence with the fourth opening 2233, and may be partially embedded into the accommodation cavity 2231 to seal the fourth opening 2233. In some embodiments, a second through hole 2412 is arranged on the first seal portion 241. The second through hole 2412 is arranged corresponding to the liquid flowing hole 225 and is in corresponding communication with the liquid storage cavity 13 and the liquid flowing hole 225. The second seal portion 242 is located at the outer periphery of the side wall 22b, and is in interference fit with the side wall 22b and the atomization housing 10.
In some embodiments, a gap 25 is reserved between the seal member 24 and the atomization base 22. The gap 25 may be formed by the channel 228 and the inner wall of the seal member 24. The gap 25 is in airflow communication with the first opening 227 and is in airflow communication with the liquid storage cavity 13. In some embodiments, communication between the gap 25 and the first opening 227 and the air exchange member 226 may form at least a part of the air exchange channel.
As further shown in FIG. 1 and FIG. 2, in some embodiments, the atomizer 100 further includes a first plug member 30. The first plug member 30 is detachably fitted to the inhalation port 122, and is configured to plug the inhalation port 122 when the electronic atomization device is not in use.
In some embodiments, the atomizer 100 further includes a second plug member 40. The second plug member 40 is detachably mounted to the air inlet 2111, and may plug the air inlet 2111 when the electronic atomization device is not in use.
It may be understood that, the foregoing embodiments only describe preferred implementations of the present disclosure specifically and in detail, but cannot be construed as a limitation to the patent scope of the present disclosure. It should be noted that, for a person of ordinary skill in the art, the foregoing technical features may be combined freely, and several transformations and improvements can be further made without departing from the idea of the present disclosure. These transformations and improvements all fall within the protection scope of the present disclosure. Therefore, any equivalent change or modification made according to the scope of the claims of the present disclosure shall fall within the scope of the claims of the present disclosure.
The terms used in the claims should be construed to have the broadest reasonable interpretation consistent with the foregoing description. For example, the use of the article "a" or "the" in introducing an element should not be interpreted as being exclusive of a plurality of elements. Likewise, the recitation of "or" should be interpreted as being inclusive, such that the recitation of "A or B" is not exclusive of "A and B," unless it is clear from the context or the foregoing description that only one of A and B is intended. Further, the recitation of "at least one of A, B and C" should be interpreted as one or more of a group of elements consisting of A, B and C, and should not be interpreted as requiring at least one of each of the listed elements A, B and C, regardless of whether A, B and C are related as categories or otherwise. Moreover, the recitation of "A, B and/or C" or "at least one of A, B or C" should be interpreted as including any singular entity from the listed elements, e.g., A, any subset from the listed elements, e.g., A and B, or the entire list of elements A, B and C.

Claims

An atomizer, comprising:
a liquid storage cavity (13); and

an atomization base (22) arranged opposite to and in fluid communication with the liquid storage cavity (13),

wherein an accommodation cavity (2231) is arranged in the atomization base (22), and an air exchange member (226) communicating with an outside is arranged in the accommodation cavity (2231), and

wherein a first opening (227) is arranged in the atomization base (22), and the first opening (227) is in airflow communication with the air exchange member (226) and the liquid storage cavity (13).
The atomizer of claim 1, further comprising:
a seal member (24) sleeved on the atomization base (22),

wherein a gap for airflow communication with the liquid storage cavity (13) is reserved between the seal member (24) and the atomization base (22), and

wherein the first opening (227) is in airflow communication with the gap.
The atomizer of claim 1, wherein the atomization base (22) comprises an end wall (22a) arranged toward the liquid storage cavity (13),
wherein the accommodation cavity (2231) has a bottom wall (2232) arranged toward the end wall (22a),

wherein the air exchange member (226) comprises a second opening (2261) arranged in the accommodation cavity (2231), and

wherein a first set interval is reserved between the second opening (2261) and the bottom wall (2232).
The atomizer of claim 3, wherein a distance from the first opening (227) to the end wall (22a) is less than a distance from the bottom wall (2232) to the end wall (22a).
The atomizer of claim 3, wherein the atomization base (22) comprises a side wall (222b) connected to the end wall (22a), and
wherein the first opening (227) is arranged on the side wall (222b).
The atomizer of claim 3, wherein the air exchange member (226) has a minimum cross-sectional dimension at the second opening (2261).
The atomizer of claim 1, wherein the atomization base (22) comprises an atomization cavity (2211), and
wherein the accommodation cavity (2231) and the atomization cavity (2211) are liquid-separately arranged from each other.
The atomizer of claim 1, wherein the air exchange member (226) comprises a columnar structure with both ends penetrating.
The atomizer of claim 1, further comprising:
an air inlet channel (2131) communicating with the outside,

wherein the air exchange member (226) is in airflow communication with the air inlet channel (2131).
An electronic atomization device, comprising:
the atomizer (100) of any one of claims 1 to 9; and

a power supply assembly connected to the atomizer (100).