CN219479229U

CN219479229U - Electronic atomizing device and atomizer

Info

Publication number: CN219479229U
Application number: CN202320159621.9U
Authority: CN
Inventors: 潘腾; 万科; 周宏明
Original assignee: Shenzhen Smoore Technology Ltd
Current assignee: Shenzhen Smoore Technology Ltd
Priority date: 2023-01-13
Filing date: 2023-01-13
Publication date: 2023-08-08
Anticipated expiration: 2033-01-13

Abstract

The utility model relates to an electronic atomization device and an atomizer, wherein the atomizer comprises a liquid storage cavity, an air flow pipeline and at least one porous body, the air flow pipeline comprises an air inlet end, an air outlet end opposite to the air inlet end and an inner wall surface extending from the air inlet end to the air outlet end, and the wettability of the inner wall surface decreases in the direction from the air inlet end to the air outlet end; at least one porous body is arranged on the air inlet end and is respectively communicated with the inner wall surface and the liquid storage cavity. The electronic atomization device comprises a power supply assembly and the atomizer, and the power supply assembly is connected with the atomizer and supplies power to the atomizer. In the process of conveying aerosol, part of aerosol is condensed and deposited on the inner wall surface of the airflow pipeline to generate liquid drops, the liquid drops move along the inner wall surface towards the air inlet end under the action of the wettability gradient, and the porous body can re-absorb the liquid drops back into the liquid storage cavity. The utilization rate of the aerosol generating substrate can be improved, liquid drops can be prevented from being sucked into the oral cavity, and the suction experience of a user is improved.

Description

Electronic atomizing device and atomizer

Technical Field

The utility model relates to the technical field of atomization, in particular to an electronic atomization device and an atomizer.

Background

Atomizers in the related art generally consist of three parts: the liquid storage bin, the atomizing core and the air flue. The liquid storage bin is used for storing atomized liquid, the atomization core is responsible for the transmission and atomization of the atomized liquid, and the effect of the air channel is that the aerosol generated after the atomized liquid is transmitted and atomized. In the process of conveying the atomized aerosol, the problem of condensation and deposition of the aerosol on the wall surface of the air passage exists, so that the loss of the aerosol is caused, and the atomization efficiency is reduced; on the other hand, the deposited aerosol is easily inhaled into the oral cavity after being aggregated into large liquid drops, and discomfort is brought to users.

Disclosure of Invention

The utility model aims to provide an improved electronic atomization device and an atomizer.

The technical scheme adopted for solving the technical problems is as follows: a nebulizer is constructed, comprising:

a liquid storage cavity;

the air flow pipeline comprises an air inlet end, an air outlet end opposite to the air inlet end and an inner wall surface extending from the air inlet end to the air outlet end, and the wettability of the inner wall surface decreases in the direction from the air inlet end to the air outlet end; and

at least one porous body is arranged on the air inlet end and is respectively communicated with the inner wall surface and the liquid storage cavity.

In some embodiments, the gas outlet end has a contact angle in the range of 90 ° to 150 °.

In some embodiments, the contact angle of the air inlet end ranges from 0 ° to 30 °.

In some embodiments, the at least one porous body comprises two porous bodies, the two porous bodies being symmetrically disposed.

In some embodiments, the at least one porous body is a porous ceramic.

In some embodiments, the atomizer further comprises a first housing, a second housing, and an atomizing core, the first housing disposed on the second housing; the atomizing core is arranged on the second seat body and is positioned between the first seat body and the second seat body.

In some embodiments, the first housing is provided with at least one fluid guide channel, which is in communication with the fluid reservoir.

In some embodiments, the atomizer further comprises a cover body, the cover body is sleeved on the first seat body, and the cover body is provided with at least one liquid guide hole, and the at least one liquid guide hole is arranged corresponding to the at least one liquid guide channel.

In some embodiments, the atomizing core includes an electrode assembly disposed through the second housing.

The utility model also constructs an electronic atomization device which comprises a power supply assembly and the atomizer, wherein the power supply assembly is connected with the atomizer and supplies power to the atomizer.

The implementation of the utility model has the following beneficial effects: the air flow pipeline of the atomizer comprises an air inlet end, an air outlet end opposite to the air inlet end and an inner wall surface extending from the air inlet end to the air outlet end, wherein the wettability of the inner wall surface decreases in the direction from the air inlet end to the air outlet end, so that a wettability gradient is formed. In the process of conveying the aerosol, part of the aerosol can be condensed and deposited on the inner wall surface of the airflow pipeline to generate liquid drops, the liquid drops spontaneously move towards the air inlet end along the inner wall surface under the action of the wettability gradient, and at least one porous body can re-absorb the liquid drops back into the liquid storage cavity. Therefore, condensed liquid drops can be recovered, the utilization rate of aerosol generating matrixes is improved, liquid drops can be prevented from being sucked into an oral cavity, and the suction experience of a user is improved.

Drawings

The utility model will be further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a schematic view of the structure of an embodiment of the atomizer of the present utility model;

FIG. 2 is an exploded view of one embodiment of the atomizer of the present utility model;

FIG. 3 is a cross-sectional view of one embodiment of the atomizer of the present utility model;

fig. 4 is a schematic diagram of a wettability gradient surface.

Detailed Description

For a clearer understanding of technical features, objects and effects of the present utility model, a detailed description of embodiments of the present utility model will be made with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "rear", "upper", "lower", "left", "right", "longitudinal", "transverse", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", "tail", etc. are configured and operated in specific directions based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model, and do not indicate that the apparatus or element to be referred to must have specific directions, and thus should not be construed as limiting the present utility model.

It should also be noted that unless explicitly stated or limited otherwise, terms such as "mounted," "connected," "secured," "disposed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. When an element is referred to as being "on" or "under" another element, it can be "directly" or "indirectly" on the other element or one or more intervening elements may also be present. The terms "first," "second," "third," and the like are used merely for convenience in describing the present utility model and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby features defining "first," "second," "third," etc. may explicitly or implicitly include one or more such features. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the following description, for purposes of explanation and not limitation, specific details are set forth such as the particular system architecture, techniques, etc., in order to provide a thorough understanding of the embodiments of the present utility model. It will be apparent, however, to one skilled in the art that the present utility model may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present utility model with unnecessary detail.

Fig. 1 shows an electronic atomizing device according to an embodiment of the present utility model for heating an atomized aerosol-generating substrate. Wherein the aerosol-generating substrate may comprise a liquid medium such as a smoke liquid, a liquid medicine, or the like.

The electronic atomizing device may in some embodiments include an atomizer 100 and a power supply assembly (not shown) coupled to the atomizer 100 for providing power to the atomizer 100.

As shown in fig. 2 and 3, in some embodiments, the atomizer 100 includes an atomization housing 1 and an atomization assembly 2, the atomization assembly 2 being disposed within the atomization housing 1. In some embodiments, the atomization shell 1 is in a shape of an elliptical cylinder, the atomization shell 1 comprises an air outlet 11, and an air flow pipeline 12 is arranged in the atomization shell 1, and the air flow pipeline 12 is communicated with the air outlet 11. A reservoir 13 is formed in the nebulizing housing 1, which reservoir 13 is adapted to store a nebulized aerosol-generating substrate, the reservoir 13 being separated from the air flow conduit 12. In some embodiments, the air flow conduit 12 may be disposed at a central axis of the atomizing housing 1. The outer wall surface of the air flow pipe 12 and the inner wall surface 120 of the atomization shell 1 define a liquid storage cavity 13, and the liquid storage cavity 13 can encircle the air flow pipe 12. In some embodiments, airflow conduit 12 includes an air inlet end 121, an air outlet end 122 opposite air inlet end 121, and an inner wall surface 120 extending from air inlet end 121 to air outlet end 122, air outlet end 122 being connected to air outlet 11.

The wettability of the inner wall surface 120 decreases in the direction from the inlet end 121 to the outlet end 122, forming a wettability gradient. Wherein, the wettability near the air outlet end 122 is the weakest, and the contact angle can be controlled between 90 degrees and 150 degrees; the wettability near the air inlet end 121 is strongest, and the contact angle can be controlled within a range of 0-30 degrees. By modifying the inner wall surface 120 of the airflow conduit 12 to a surface having a wettability gradient, the deposited aerosol droplets 20 can move directionally along the wettability gradient, thereby achieving the purpose of recovering condensed droplets 20; and the whole process is automatically carried out without external power.

The wettability refers to the ability of a liquid to spread on a solid surface, and the wettability of the solid surface is generally measured by a contact angle θ, wherein the contact angle θ varies from 0 ° to 180 °, and the smaller θ indicates the stronger the wettability of the solid, i.e., the stronger the ability to spread the liquid. The specific principle is as shown in fig. 4, the wettability gradient means that a surface with continuously changing wettability is prepared on a solid surface by a chemical or physical method, and the liquid drop 20 spontaneously moves from a region 123 with weak wettability to a region 124 with strong wettability on such a surface due to the imbalance of capillary forces applied to both ends, so that the directional movement of the liquid drop 20 is realized. The droplets 20 exhibit directional liquid transport properties on the wettability gradient surface, i.e. the droplets 20 can only be transported in the direction of increasing wettability and cannot be transported in the opposite direction.

The directional movement and recovery of the condensed droplets 20 on the inner wall surface 120 of the gas flow conduit 12 is not limited to a specific method of preparing a wettability gradient surface, and common preparation methods include electrochemical deposition, surface diffusion deposition, laser ablation, dry etching, electrospinning, and the like.

In addition to using some chemical method to prepare the surface having a wettability gradient, some physical method may be used, such as by altering the structure of the inner wall 120 of the airflow conduit 12. Increasing the surface roughness enhances the wettability caused by the chemistry of the surface. For example, the surface is chemically hydrophobic, and when surface roughness is added, it will become more hydrophobic. In some embodiments, portions of the inner wall surface 120 of the airflow conduit 12 may be provided with textured portions 123, the textured portions 123 providing a higher wettability than the remaining portions of the airflow conduit 12 where the textured portions 123 are not provided. Increasing the wettability of the airflow conduit 12 may help reduce the instances where aerosols condense as droplets 20 on the inner wall of the airflow conduit 12 and reduce the likelihood that the droplets 20 will be drawn into the user's mouth.

As shown in fig. 3, in some embodiments, the atomizing assembly 2 includes an atomizing core 21 and at least one porous body 22, the atomizing core 21 being in communication with the liquid reservoir 13 for heating the atomized aerosol-generating substrate. At least one porous body 22 is provided on the air inlet end 121 and communicates with the air flow duct 12 and the liquid storage chamber 13 for recovering condensed droplets 20 that flow back from the inner wall surface 120 of the wettability gradient. The surface of the atomizing core 21 facing the air flow pipe 12 is an atomizing surface, and aerosol generated at the atomizing surface enters the air flow pipe 12 together with air and is discharged from the air outlet 11. During the aerosol transportation process of the airflow pipeline 12, part of aerosol particles can be condensed and deposited on the inner wall surface 120 of the airflow pipeline 12 to generate liquid drops 20, the liquid drops 20 spontaneously move towards the air inlet end 121 along the inner wall surface 120 under the action of the wettability gradient, and at least one porous body 22 can re-absorb the spontaneously moved liquid drops 20 into the liquid storage cavity 13. Thus, the condensed liquid drops 20 can be recovered, the utilization rate of aerosol generating matrixes is improved, the liquid drops 20 can be prevented from being sucked into the oral cavity, and the suction experience of a user is improved.

In some embodiments, the at least one porous body 22 may include two porous bodies 22, the two porous bodies 22 being symmetrically disposed to increase the recovery efficiency of the condensed liquid droplets 20. It is understood that the porous body 22 is not limited to two, and the number thereof may be adjusted according to practical situations. In some embodiments, the porous body 22 may be a porous ceramic, or the porous body 22 may be made of other materials with capillary forces to facilitate the transfer of the condensed droplets 20 into the reservoir 13.

As shown in fig. 2 and 3, in some embodiments, the atomizing assembly 2 further includes a first housing 23 and a second housing 24, the first housing 23 being disposed on the second housing 24. An accommodating space is reserved between the first seat body 23 and the second seat body 24 for installing the atomizing core 21. The atomizing core 21 is disposed on the second base 24, and is mounted in the accommodating space between the first base 23 and the second base 24. The bottom of the second seat 24 is provided with an air inlet 241, and external air can enter the atomization shell 1 through the air inlet 241.

In some embodiments, the first housing 23 is provided with at least one fluid guide channel 231, and the at least one fluid guide channel 231 is in communication with the fluid reservoir 13 and the atomizing core 21. The first seat body 23 is further provided with an air outlet channel 232, and the air outlet channel 232 is located in the middle of the first seat body 23. The at least one liquid guide channel 231 may comprise two liquid guide channels 231, the two liquid guide channels 231 being located on both sides of the air outlet channel 232, respectively, through which two liquid guide channels 231 the aerosol-generating substrate in the liquid reservoir 13 enters the atomizing core 21. It is understood that the liquid guiding channels 231 are not limited to two, and can be adjusted according to actual liquid feeding conditions.

In some embodiments, the atomizing assembly 2 may further include a sealing sleeve, the sealing sleeve is sleeved on the atomizing core 21, and after the first seat body 23 abuts against the sealing sleeve, the atomizing core 21 is tightly clamped between the second seat body 24 and the first seat body 23, so that sealing between the atomizing core 21 and the first seat body 23 and sealing between the atomizing core and the second seat body 24 can be achieved, and leakage is prevented.

As shown in fig. 2 and 3, in some embodiments, the atomizing assembly 2 further includes a cover 25, where the cover 25 is provided with at least one liquid guiding hole 251, the at least one liquid guiding hole 251 is disposed corresponding to the at least one liquid guiding channel 231, and the cover 25 is further provided with an air outlet hole, and the air outlet hole is disposed corresponding to the air outlet channel 232. The cover 25 is sleeved on the first seat 23, and is used for sealing the first seat 23, so that the aerosol-generating substrate flows into the atomization core 21 through the liquid guide channel 231, and leakage of liquid is reduced.

As shown in fig. 3, in some embodiments, the atomizing core 21 includes an electrode assembly 211, and the electrode assembly 211 is disposed through the second housing 24. The second base 24 is provided with a mounting groove therein, in which the electrode assembly 211 is mounted, and the electrode assembly 211 is electrically connected to the power assembly.

It is to be understood that the above examples only represent preferred embodiments of the present utility model, which are described in more detail and are not to be construed as limiting the scope of the utility model; it should be noted that, for a person skilled in the art, the above technical features can be freely combined, and several variations and modifications can be made without departing from the scope of the utility model; therefore, all changes and modifications that come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims

1. An atomizer, comprising:

a liquid storage cavity;

2. The nebulizer of claim 1, wherein the gas outlet end has a contact angle in the range of 90 ° to 150 °.

3. The nebulizer of claim 1, wherein the inlet end has a contact angle in the range of 0 ° to 30 °.

4. The nebulizer of claim 1, wherein the at least one porous body comprises two porous bodies, the two porous bodies being symmetrically disposed.

5. The nebulizer of claim 1, wherein the at least one porous body is a porous ceramic.

6. The atomizer of claim 1 further comprising a first housing, a second housing, and an atomizing core, the first housing being disposed on the second housing; the atomizing core is arranged on the second seat body and is positioned between the first seat body and the second seat body.

7. The atomizer of claim 6 wherein said first housing is provided with at least one fluid passage, said at least one fluid passage being in communication with said reservoir.

8. The atomizer of claim 7 further comprising a cover, wherein the cover is sleeved on the first base, and wherein the cover is provided with at least one liquid guiding hole, and wherein the at least one liquid guiding hole is disposed corresponding to the at least one liquid guiding channel.

9. The atomizer of claim 6 wherein said atomizing core includes an electrode assembly, said electrode assembly extending through said second housing.

10. An electronic atomising device comprising a power supply assembly and a nebuliser as claimed in any one of claims 1 to 9, the power supply assembly being connected to and supplying power to the nebuliser.