CN218551336U - Micropore atomization assembly and electronic atomization device - Google Patents

Abstract

The application relates to a micropore atomization assembly and an electronic atomization device, wherein the micropore atomization assembly comprises an atomization sheet and piezoelectric ceramics, the atomization sheet is provided with a fog outlet surface and an immersion surface which are opposite, and the piezoelectric ceramics are arranged on any one of the fog outlet surface and the immersion surface; wherein, along the direction of running through immersion liquid level and play fog face, atomizing hole and scavenge pore have been seted up on the atomizing piece, and the scavenge pore only allows outside air current to point to the direction flow of immersion liquid level along a fog face. Among the above-mentioned micropore atomization component, the atomizing piece vibrates around on self thickness direction under piezoceramics's drive, and vibrates to one side at immersion fluid face place when the atomizing piece, when towards stock solution intracavity portion vibration promptly, and outside air accessible scavenge port gets into the stock solution intracavity, so send outside air like the confined stock solution intracavity, makes stock solution chamber and external atmospheric pressure balance that keeps to prevent to store up the intracavity and form pressure differential and reduce atomizing volume, guarantees that fog volume is balanced.

Description

Micropore atomization assembly and electronic atomization device

Technical Field

The application relates to the technical field of atomization, in particular to a micropore atomization assembly and an electronic atomization device.

Background

An aerosol is a colloidal dispersion system formed by dispersing small solid or liquid particles in a gaseous medium, and since the aerosol can be absorbed by the human body through the respiratory system, a novel alternative absorption mode is provided for users, for example, an atomization device which can atomize herbal or paste aerosol generating substrates to generate aerosol is applied to different fields, aerosol which can be inhaled is delivered for users, and the conventional product form and absorption mode are replaced.

Generally, an aerosol generating substrate is atomized into an aerosol in an electronic atomization device by a microporous atomization assembly. However, liquid storage cavity is closed among some ultrasonic atomization's the electronic atomization device, and the aerosol in the liquid storage cavity in the ultrasonic atomization process generates the substrate and constantly is atomized for the aerosol discharges, but liquid storage cavity self seals and does not have gaseous supplementary, can produce inside and outside pressure differential, for example some closed atomizers discover inside and outside pressure differential in the test procedure and reach 10kpa, can make the atomizer appear the big back condition before the fog volume, lead to out the fog volume disequilibrium.

SUMMERY OF THE UTILITY MODEL

Accordingly, there is a need to provide a micro-porous atomizing assembly and an electronic atomizing device for solving the problem of unbalanced ultrasonic atomization mist output.

A micropore atomization assembly comprises an atomization sheet and piezoelectric ceramics, wherein the atomization sheet is provided with a fog outlet surface and a soaking surface which are opposite to each other, and the piezoelectric ceramics are arranged on any one of the fog outlet surface and the soaking surface;

the atomizing sheet is provided with an atomizing hole and a ventilating hole along the direction penetrating through the immersion liquid level and the mist outlet surface, and the ventilating hole only allows external airflow to flow along the direction of the mist outlet surface pointing to the immersion liquid level.

In the micropore atomization assembly, the atomization sheet is provided with not only the atomization hole, but also the ventilation hole which only allows the external airflow to flow to one side of the immersion surface. The atomizing piece vibrates around on self thickness direction under piezoceramics's drive to when the atomizing piece vibrates to the one side at immersion fluid face place, when the vibration of liquid storage intracavity portion promptly, the outside air can get into the scavenge port and flow to the stock solution intracavity of immersion fluid face place one side, so send outside air like the confined stock solution intracavity. When the atomizing piece vibrates towards one side where the mist outlet surface is located, namely towards the outer side of the liquid storage cavity, the aerosol generating substrate in the liquid storage cavity is extruded through the atomizing holes and is sprayed out to form atomized aerosol, meanwhile, the ventilation holes only allow external airflow to flow in, the aerosol generating substrate cannot enter the ventilation holes, and air inflow during subsequent reverse vibration cannot be influenced.

So, outwards atomizing spray aerosol through the atomizing hole on the atomizing piece, set up the breather hole simultaneously on the atomizing piece, the breather hole can be in the one-way air intake in the direction of the directional immersion liquid level of fog face to supply air to the confined stock solution intracavity, make stock solution chamber and external keep atmospheric pressure balanced, reduce the atomizing volume in order to prevent that the stock solution intracavity from forming pressure differential, in order to guarantee that the stage can evenly go out the fog all the time around the atomizing, guarantee that the fog volume is balanced.

In one embodiment, the ventilation holes comprise an air inlet on the mist outlet surface and an air outlet on the immersion surface, and the area of the air inlet is larger than that of the air outlet.

In one embodiment, the aperture of the ventilation hole is gradually reduced in the direction that the mist outlet surface points to the immersion liquid surface.

In one embodiment, the atomizing hole comprises a liquid inlet on the immersion surface and a liquid outlet on the fog outlet surface, and the area of the liquid inlet is larger than that of the liquid outlet.

In one embodiment, the aperture of the atomization hole is gradually increased in the direction that the fog outlet surface points to the immersion liquid surface.

In one embodiment, the atomization sheet comprises an atomization area and a ventilation area, the atomization area is located at the center of the atomization sheet, and the ventilation area is arranged around the atomization area;

the atomization hole is formed in the atomization area, and the ventilation hole is formed in the ventilation area.

In one embodiment, the piezoelectric ceramic has a through hole, and the atomizing area and the ventilation area both face the through hole.

In one embodiment, the atomization area is provided with a plurality of atomization holes in an array mode, and the ventilation area is provided with a plurality of ventilation holes in an array mode.

In one embodiment, the number of the atomization holes is 10-20 times of the number of the ventilation holes.

In one embodiment, the ventilation holes have a pore size of 2.5 μm to 10 μm.

An electronic atomization device comprises the micropore atomization assembly.

Drawings

FIG. 1 is a schematic diagram of a micro-orifice atomizing assembly according to an embodiment of the present disclosure;

FIG. 2 is a schematic cross-sectional view of the microporous atomizing assembly of FIG. 1;

FIG. 3 is an enlarged partial schematic view of the microapertured atomizing assembly of FIG. 2;

FIG. 4 is a schematic view, partially in cross-section, of an atomizing assembly according to another embodiment of the present application;

fig. 5 is a schematic cross-sectional view of an electronic atomizer according to an embodiment of the present application.

Description of reference numerals: 100. a microporous atomizing assembly; 10. an atomizing sheet; 12. soaking liquid level; 14. forming a fog surface; 16. an atomization orifice; 161. a liquid inlet; 163. a liquid outlet; 18. a ventilation hole; 181. an air inlet; 183. an air outlet; 22. an atomization zone; 24. a ventilation area; 30. piezoelectric ceramics; 32. a through hole; 200. an electronic atomization device; 210. a liquid storage cavity.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiment in many different forms than those described herein and those skilled in the art will be able to make similar modifications without departing from the spirit of the application and therefore the application is not limited to the specific embodiments disclosed below.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are for purposes of illustration only and do not denote a single embodiment.

Referring to fig. 1-3, in an embodiment of the present application, a micro-porous atomizing assembly 100 is provided, in which the micro-porous atomizing assembly 100 includes an atomizing plate 10 and a piezoelectric ceramic 30 disposed on the atomizing plate 10, and an atomizing hole 16 is formed on the atomizing plate 10. The piezoelectric ceramic 30 generates piezoelectric effect and high-frequency oscillation under the action of the driving power supply, and further drives the atomizing sheet 10 to perform front-back high-frequency oscillation in the thickness direction of the atomizing sheet, so that the liquid aerosol generating substrate is scattered through the high-frequency oscillation and is sprayed out through the atomizing holes 16 to form atomized aerosol.

Furthermore, the atomizing sheet 10 has a liquid immersion surface 12 and a mist exit surface 14 which are opposite to each other, the piezoelectric ceramic 30 is provided on either one of the liquid immersion surface 12 and the mist exit surface 14, the atomizing sheet 10 is provided with the atomizing holes 16 and the ventilation holes 18 along a direction penetrating the liquid immersion surface 12 and the mist exit surface 14, and the ventilation holes 18 allow the external airflow to flow only along a direction in which the mist exit surface 14 points to the liquid immersion surface 12. In this way, the atomizing plate 10 is provided with not only the atomizing holes 16 but also the ventilating holes 18 which allow the outside air to flow only to the side where the immersion liquid surface 12 is located. The atomizing plate 10 is driven by the piezoelectric ceramic 30 to vibrate back and forth in the thickness direction thereof, and when the atomizing plate 10 vibrates toward the side of the immersion liquid surface 12, i.e., toward the inside of the liquid storage chamber 210, the external air can enter the ventilation hole 18 and flow into the liquid storage chamber 210 on the side of the immersion liquid surface 12, so that the external air is delivered into the closed liquid storage chamber 210.

When the atomizing plate 10 vibrates towards the side of the mist outlet surface 14, that is, towards the outside of the liquid storage cavity 210, the aerosol-generating substrate in the liquid storage cavity 210 is extruded and sprayed out through the atomizing holes 16 to form atomized aerosol, and meanwhile, the ventilation holes 18 only allow the inflow of external air flow, so that the aerosol-generating substrate does not enter the ventilation holes 18 and the air inflow during subsequent reverse vibration is not affected.

That is to say, the atomizing sheet 10 is atomized and sprayed with aerosol through the atomizing holes 16, and at the same time, the atomizing sheet 10 is provided with the ventilating holes 18, the ventilating holes 18 can supply air in a single direction in a direction in which the mist outlet surface 14 points to the immersion liquid surface 12 to supply air to the closed liquid storage cavity 210, so that the liquid storage cavity 210 and the outside maintain air pressure balance, thereby preventing pressure difference from forming in the liquid storage cavity 210 and reducing atomizing amount, so as to ensure uniform mist outlet before and after atomization, and ensuring the balance of mist outlet amount.

In some embodiments, the ventilation holes 18 include an inlet 181 located on the mist outlet surface 14 and an outlet 183 located on the immersion fluid surface 12, and the area of the inlet 181 is larger than the area of the outlet 183. Therefore, the area of the air inlet 181 of the ventilation hole 18 on the mist outlet surface 14 is large, the atomization sheet 10 is driven by the piezoelectric ceramic 30 to vibrate back and forth in the thickness direction of the atomization sheet 10, and when the atomization sheet 10 vibrates towards the side where the immersion surface 12 is located, i.e., towards the inside of the liquid storage cavity 210, the external air can enter the ventilation hole 18 through the air inlet 181 with the large opening area on the mist outlet surface 14 and enter the liquid storage cavity 210 through the air outlet 183, so that the external air is delivered into the closed liquid storage cavity 210. When the atomizing plate 10 vibrates toward the side of the mist outlet surface 14, i.e., toward the outside of the liquid storage chamber 210, the aerosol-generating substrate in the liquid storage chamber 210 is extruded and sprayed out through the atomizing holes 16 to form atomized aerosol, and simultaneously, because the area of the air outlet 183 of the ventilating holes 18 on the liquid immersion surface 12 facing the liquid storage chamber 210 is small, the aerosol-generating substrate does not enter the ventilating holes 18, and air intake during subsequent reverse vibration is not affected.

Further, in the direction that the mist outlet surface 14 points to the immersion liquid surface 12, the aperture of the ventilation holes 18 gradually decreases, for example, the ventilation holes 18 are tapered holes, the larger opening is the air inlet 181 located on the mist outlet surface 14, and the smaller opening is the air outlet 183 located on the immersion liquid surface 12, so as to realize unidirectional air inlet from the mist outlet surface 14 to the immersion liquid surface 12. It is understood that the ventilation hole 18 may have other shapes such as a stepped hole, and is not limited herein.

In some embodiments, the atomizing orifice 16 includes an inlet port 161 located at the immersion surface 12 and an outlet port 163 located at the mist surface 14, the inlet port 161 having a larger area than the outlet port 163. Thus, the liquid inlet 161 and the liquid outlet 163 of the atomizing hole 16 are designed differently, the area of the liquid inlet 161 on the immersion liquid surface 12 is larger, and the area of the liquid outlet 163 on the mist outlet surface 14 is smaller, so that the atomizing hole 16 forms a pumping effect, the aerosol generating substrate is more efficiently delivered to the outside in the high-frequency vibration process of the atomizing sheet 10, and the atomizing effect is improved.

Further, in the direction in which the mist outlet surface 14 is directed to the immersion surface 12, the aperture of the atomization holes 16 gradually increases, for example, the atomization holes 16 are tapered holes, and the aperture change manner of the atomization holes 16 is opposite to the aperture change manner of the ventilation holes 18, so as to ensure that when the atomization sheet 10 vibrates towards the side of the mist outlet surface 14, aerosol is sprayed through the atomization holes 16, and when the atomization sheet 10 vibrates towards the side of the immersion surface 12, gas is delivered into the liquid storage cavity 210 through the ventilation holes 18, so that the atomization holes 16 and the ventilation holes 18 with larger openings facing opposite directions are arranged, and atomization and unidirectional air delivery of the aerosol generating substrate are realized.

In some embodiments, the atomization sheet 10 includes an atomization zone 22 and a ventilation zone 24, the atomization zone 22 being located at a center of the atomization sheet 10, the ventilation zone 24 being disposed around the atomization zone 22; the atomization holes 16 are opened in the atomization region 22, and the ventilation holes 18 are opened in the ventilation region 24. In the vibration process of the atomizing plate 10, the amplitude of the central area of the atomizing plate 10 is larger relative to the amplitude of the peripheral area, and the viscous resistance of the liquid needs to be overcome in the mist outlet process, so that the atomizing holes 16 are arranged at the center of the atomizing plate 10 to effectively ensure the atomizing effect. The ventilation area 24 is provided around the outer periphery of the atomization area 22, and outside air is pumped into the reservoir chamber 210 through the ventilation holes 18 of the ventilation area 24.

Furthermore, the piezoelectric ceramic 30 is provided with a through hole 32, and the atomization region 22 and the ventilation region 24 both face the through hole 32, so that the atomization hole 16 and the ventilation hole 18 in the atomization region 22 and the ventilation region 24 are both communicated with the through hole 32, and the outside air or the atomized aerosol can flow through the through hole 32 in the middle of the piezoelectric ceramic 30, thereby ensuring the atomization and ventilation effects. Optionally, the piezoelectric ceramic 30 is disposed on the mist outlet surface 14 of the atomization sheet 10.

Specifically, a plurality of atomization holes 16 are arrayed in the atomization region 22, and a plurality of ventilation holes 18 are arrayed in the ventilation region 24, so that atomization effect is ensured through the plurality of atomization holes 16, and ventilation effect is ensured through the plurality of ventilation holes 18.

Alternatively, the diameter of the ventilation holes 18 is 2.5 μm to 10 μm, and the diameter of the ventilation holes 18 is micron-sized, so that the external air flow can be pumped into the liquid storage cavity 210 only during the high-frequency oscillation of the atomizing plate 10 without liquid leakage. Still alternatively, the atomizing holes 16 have a hole diameter of 2.5 μm to 10 μm, and are capable of ejecting the aerosol to the outside during high-frequency oscillation.

In some embodiments, the number of the atomization holes 16 is 10-20 times of the number of the ventilation holes 18, that is, the number of the atomization holes 16 is larger, so as to further balance the internal and external pressure differences by adding a certain number of the ventilation holes 18 on the basis of ensuring the original atomization effect.

Referring to fig. 2-3, in some embodiments, the area of the atomizing plate 10 facing the through hole 32 of the piezoelectric ceramic 30 is provided as a convex hull, the convex direction of the convex hull is the direction in which the liquid immersion surface 12 points to the mist exit surface 14, so as to guide the aerosol generating substrate in the liquid storage chamber 210 to be atomized and sprayed toward the mist exit surface 14, and the atomizing area 22 and the air exchange area 24 are both formed on the convex hull. Referring to fig. 4, it can be understood that in other embodiments, the area of the atomization plate 10 facing the through hole 32 of the piezoelectric ceramic 30 is a flat structure, and the atomization region 22 and the air exchange region 24 are both disposed on the flat structure. Specifically, the atomization holes 16 and the ventilation holes 18 in the atomization region 22 and the ventilation region 24 are correspondingly formed on a convex hull or a straight structure, and whether the atomization sheet 10 is provided with a convex hull is not limited herein.

Referring to fig. 1 and 5, in one embodiment of the present application, an electronic atomizer 200 is provided, which includes the above-described micro-porous atomizing assembly 100. The atomizing sheet 10 has a liquid immersion surface 12 and a mist exit surface 14 which are opposite to each other, the piezoelectric ceramic 30 is provided on either one of the liquid immersion surface 12 and the mist exit surface 14, the atomizing sheet 10 is provided with an atomizing hole 16 and a ventilation hole 18 along a direction penetrating the liquid immersion surface 12 and the mist exit surface 14, and the ventilation hole 18 only allows the external air flow to flow along the direction of the mist exit surface 14 to the liquid immersion surface 12. In this way, the atomizing plate 10 is provided with not only the atomizing holes 16 but also the ventilation holes 18 that allow the outside air flow to flow only to the side where the immersion liquid surface 12 is located. The atomizing plate 10 is driven by the piezoelectric ceramic 30 to vibrate back and forth in the thickness direction thereof, and when the atomizing plate 10 vibrates toward the side of the immersion liquid surface 12, i.e., toward the inside of the liquid storage chamber 210, the external air can enter the ventilation hole 18 and flow into the liquid storage chamber 210 on the side of the immersion liquid surface 12, so that the external air is delivered into the closed liquid storage chamber 210.

When the atomizing plate 10 vibrates towards the side of the mist outlet surface 14, that is, towards the outside of the liquid storage cavity 210, the aerosol-generating substrate in the liquid storage cavity 210 is extruded and sprayed out through the atomizing holes 16 to form atomized aerosol, and meanwhile, the ventilation holes 18 only allow the inflow of external air flow, so that the aerosol-generating substrate does not enter the ventilation holes 18 and the air inflow during subsequent reverse vibration is not affected.

That is to say, the atomizing sheet 10 is atomized and sprayed with aerosol through the atomizing holes 16, and meanwhile, the atomizing sheet 10 is provided with the ventilating holes 18, the ventilating holes 18 can make unidirectional air intake in the direction that the mist outlet surface 14 points to the immersion liquid surface 12, so as to supply air into the closed liquid storage cavity 210, so that the liquid storage cavity 210 and the outside maintain air pressure balance, thereby preventing pressure difference from forming in the liquid storage cavity 210 and reducing the atomizing amount, so as to ensure uniform mist outlet all the time before and after atomization, and ensure the mist outlet amount balance.

In some embodiments, the ventilation holes 18 include an inlet 181 located on the mist outlet surface 14 and an outlet 183 located on the immersion fluid surface 12, and the area of the inlet 181 is larger than the area of the outlet 183. Therefore, the area of the air inlet 181 of the ventilation hole 18 on the mist outlet surface 14 is large, the atomization sheet 10 is driven by the piezoelectric ceramic 30 to vibrate back and forth in the thickness direction of the atomization sheet 10, and when the atomization sheet 10 vibrates towards the side where the immersion surface 12 is located, i.e., towards the inside of the liquid storage cavity 210, the external air can enter the ventilation hole 18 through the air inlet 181 with the large opening area on the mist outlet surface 14 and enter the liquid storage cavity 210 through the air outlet 183, so that the external air is delivered into the closed liquid storage cavity 210. When the atomizing plate 10 vibrates toward the side of the mist outlet surface 14, i.e., toward the outside of the liquid storage chamber 210, the aerosol-generating substrate in the liquid storage chamber 210 is extruded and sprayed out through the atomizing holes 16 to form atomized aerosol, and simultaneously, because the area of the air outlet 183 of the ventilating holes 18 on the liquid immersion surface 12 facing the liquid storage chamber 210 is small, the aerosol-generating substrate does not enter the ventilating holes 18, and air intake during subsequent reverse vibration is not affected.

Further, in the direction that the mist outlet surface 14 points to the immersion liquid surface 12, the aperture of the ventilation holes 18 gradually decreases, for example, the ventilation holes 18 are tapered holes, the larger opening is the air inlet 181 located on the mist outlet surface 14, and the smaller opening is the air outlet 183 located on the immersion liquid surface 12, so as to realize unidirectional air inlet from the mist outlet surface 14 to the immersion liquid surface 12. It is understood that the ventilation hole 18 may have other shapes such as a stepped hole, and is not limited herein.

In some embodiments, the atomizing orifice 16 includes an inlet port 161 located at the immersion surface 12 and an outlet port 163 located at the mist surface 14, the inlet port 161 having a larger area than the outlet port 163. Thus, the liquid inlet 161 and the liquid outlet 163 of the atomizing hole 16 are designed differently, the area of the liquid inlet 161 on the immersion liquid surface 12 is larger, and the area of the liquid outlet 163 on the mist outlet surface 14 is smaller, so that the atomizing hole 16 forms a pumping effect, the aerosol generating substrate is more efficiently delivered to the outside in the high-frequency vibration process of the atomizing sheet 10, and the atomizing effect is improved.

Further, in the direction in which the mist outlet surface 14 is directed to the immersion surface 12, the aperture of the atomization holes 16 gradually increases, for example, the atomization holes 16 are tapered holes, and the aperture change manner of the atomization holes 16 is opposite to the aperture change manner of the ventilation holes 18, so as to ensure that when the atomization sheet 10 vibrates towards the side of the mist outlet surface 14, aerosol is sprayed through the atomization holes 16, and when the atomization sheet 10 vibrates towards the side of the immersion surface 12, gas is delivered into the liquid storage cavity 210 through the ventilation holes 18, so that the atomization holes 16 and the ventilation holes 18 with larger openings facing opposite directions are arranged, and atomization and unidirectional air delivery of the aerosol generating substrate are realized.

In some embodiments, the atomization sheet 10 includes an atomization zone 22 and a ventilation zone 24, the atomization zone 22 being located at a center of the atomization sheet 10, the ventilation zone 24 being disposed around the atomization zone 22; the atomization holes 16 are opened in the atomization region 22, and the ventilation holes 18 are opened in the ventilation region 24. In the vibration process of the atomizing plate 10, the amplitude of the central area of the atomizing plate 10 is larger relative to the amplitude of the peripheral area, and the viscous resistance of the liquid needs to be overcome in the mist outlet process, so that the atomizing holes 16 are arranged at the center of the atomizing plate 10 to effectively ensure the atomizing effect. The ventilation area 24 is provided around the outer periphery of the atomization area 22, and outside air is pumped into the reservoir chamber 210 through the ventilation holes 18 of the ventilation area 24.

Furthermore, the piezoelectric ceramics 30 is provided with a through hole 32, the atomizing area 22 and the air exchange area 24 both face the through hole 32, so that the atomizing holes 16 and the air exchange holes 18 in the atomizing area 22 and the air exchange area 24 are both communicated with the through hole 32, and the outside air or the atomized aerosol can flow through the through hole 32 in the middle of the piezoelectric ceramics 30, thereby ensuring the atomizing and air exchange effects.

Specifically, a plurality of atomization holes 16 are arrayed in the atomization region 22, and a plurality of ventilation holes 18 are arrayed in the ventilation region 24, so that atomization effect is ensured through the plurality of atomization holes 16, and ventilation effect is ensured through the plurality of ventilation holes 18.

Alternatively, the vent hole 18 has a diameter of 2.5 μm to 10 μm, and the vent hole 18 has a diameter of micrometer, so that the external air flow can be pumped into the liquid storage cavity 210 only during the high-frequency oscillation of the atomizing plate 10 without leakage. Still alternatively, the atomizing holes 16 have a pore size of 2.5 μm to 10 μm and are capable of ejecting the aerosol to the outside during high-frequency oscillation.

In some embodiments, the number of the atomization holes 16 is 10-20 times of the number of the ventilation holes 18, that is, the number of the atomization holes 16 is larger, so as to further balance the internal and external pressure differences by adding a certain number of the ventilation holes 18 on the basis of ensuring the original atomization effect.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (11)

1. A micropore atomization assembly is characterized by comprising an atomization sheet and piezoelectric ceramics, wherein the atomization sheet is provided with a fog outlet surface and a soaking liquid surface which are opposite to each other, and the piezoelectric ceramics are arranged on any one of the fog outlet surface and the soaking liquid surface;

the atomizing sheet is provided with an atomizing hole and a ventilating hole along the direction penetrating through the immersion liquid surface and the mist outlet surface, and the ventilating hole only allows the external air flow to flow along the direction of the mist outlet surface pointing to the immersion liquid surface.

2. The microporous atomizing assembly of claim 1, wherein the vent holes comprise an inlet opening in the mist outlet face and an outlet opening in the immersion face, the inlet opening having an area greater than the outlet opening.

3. The microporous atomizing assembly of claim 2, wherein the vent aperture decreases in size in a direction in which the mist exit surface points toward the immersion fluid surface.

4. The microporous atomizing assembly of claim 1, wherein the atomizing orifice includes a liquid inlet on the immersion surface and a liquid outlet on the mist exit surface, and the area of the liquid inlet is larger than the area of the liquid outlet.

5. The microporous atomizing assembly of claim 4, wherein the aperture of the atomizing orifice increases in a direction in which the misting surface points toward the immersion fluid surface.

6. The microporous atomizing assembly of any one of claims 1-5, wherein the atomizing plate includes an atomizing area and a venting area, the atomizing area being located at a center of the atomizing plate, the venting area being disposed around the atomizing area;

the atomization hole is formed in the atomization area, and the ventilation hole is formed in the ventilation area.

7. The microporous atomizing assembly of claim 6, wherein the piezoelectric ceramic defines a through-hole, and the atomizing area and the venting area both face the through-hole.

8. The microporous atomizing assembly of claim 6, wherein the atomizing area has a plurality of the atomizing orifices arrayed therein and the venting area has a plurality of the venting orifices arrayed therein.

9. The microporous atomizing assembly of claim 8, wherein the number of atomizing orifices is 10-20 times the number of venting orifices.

10. A microporous atomizing assembly according to any of claims 1-5, characterized in that the pore size of the venting pores is 2.5 μm-10 μm.

11. An electronic atomizing device comprising the microporous atomizing assembly of any one of claims 1 to 10.

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