CN217794003U

CN217794003U - Atomizer and aerosol-generating device

Info

Publication number: CN217794003U
Application number: CN202123305508.7U
Authority: CN
Inventors: 陈俊强
Original assignee: Shenzhen Moore Health Medical Technology Co ltd
Current assignee: Shenzhen Moore Health Medical Technology Co ltd
Priority date: 2021-12-25
Filing date: 2021-12-25
Publication date: 2022-11-15
Anticipated expiration: 2031-12-25
Also published as: WO2023116384A1

Abstract

The application provides an atomizer and an aerosol-generating device. The atomizer includes a housing; wherein, the shell is provided with a liquid storage cavity and a ventilation hole communicated with the liquid storage cavity; the reservoir chamber is for storing an aerosol-generating substrate; the scavenge port includes the hole section, and wherein, the aperture that the hole section deviates from one side of stock solution chamber is greater than the aperture that the hole section is close to one side of stock solution chamber. The atomizer not only can keep the internal and external pressure of the liquid storage cavity balanced, prevent liquid leakage, but also can avoid the problem that the aerosol generating substrate is touched and brought out due to the capillary effect.

Description

Atomizer and aerosol-generating device

Technical Field

The utility model relates to an electronic atomization technical field especially relates to an atomizer and aerosol generate device.

Background

With the development of medical technology, the aerosol inhalation administration mode is more and more accepted by people due to the advantages of low damage and high drug effect; the aerosol inhalation therapy is an important and effective treatment method in the treatment method of respiratory system diseases, and a medical atomizer is adopted to atomize an aerosol generating substrate into tiny particles, and a patient inhales medicaments into the respiratory tract and the lung through breathing to deposit, so that the aim of painless, rapid and effective treatment is fulfilled.

In a traditional atomizer, in an atomization process, pressure in a liquid storage cavity of the traditional atomizer generally changes, so that atomization is abnormal, and therefore a ventilation hole needs to be formed in an atomization bin for ventilation, so that air pressure balance in the atomizer is kept, and meanwhile, the risk that aerosol generating substrates flow out of the ventilation hole needs to be considered; the prior art generally provides ventilation holes in the walls of the reservoir chamber to maintain a pressure balance between the interior and exterior of the reservoir chamber whilst preventing egress of the aerosol-generating substrate.

However, existing ventilation apertures are prone to problems with leakage of the aerosol-generating substrate through the ventilation apertures.

SUMMERY OF THE UTILITY MODEL

The present application provides an atomiser and aerosol-generating device which aims to solve the problem of the prior atomiser that the aerosol-generating substrate leaks easily through the vent holes.

In order to solve the technical problem, the application adopts a technical scheme that: an atomizer is provided. The atomizer includes a housing; wherein the shell is provided with a liquid storage cavity and a ventilation hole communicated with the liquid storage cavity; wherein the reservoir chamber is for storing an aerosol-generating substrate; the scavenge port includes the hole section, and wherein, the aperture that the hole section deviates from one side of stock solution chamber is greater than the aperture that the hole section is close to one side of stock solution chamber.

Wherein, the hole section is a single hole section with continuously changed hole diameter.

Wherein, the hole section includes interconnect's first sub-hole section and second sub-hole section, and the second sub-hole section is located the one side that the stock solution chamber was kept away from to first sub-hole section, and the aperture of the port of keeping away from first sub-hole section of second sub-hole section is greater than the aperture of first sub-hole section.

Wherein, first sub-hole section and stock solution chamber direct intercommunication, second sub-hole section and external atmosphere direct intercommunication to communicate with the stock solution chamber through first sub-hole section.

Wherein, first sub-pore section is the column hole, and the aperture of second sub-pore section is followed and is kept away from the direction in stock solution chamber and increase gradually.

Wherein the minimum pore diameter of the second sub-pore section is the same as the pore diameter of the first sub-pore section.

Wherein, the aperture of the first sub-hole section is more than or equal to 0.3 mm and less than or equal to 1 mm.

Wherein the maximum aperture of the second sub-aperture section is greater than or equal to 1.5 mm and less than or equal to 3 mm.

Wherein the ratio of the maximum aperture of the second sub-pore section to the depth of the second sub-pore section is 1-3.

The first sub-hole section and the second sub-hole section are both columnar holes, and the aperture of the second sub-hole section is larger than that of the first sub-hole section.

The first sub-hole section and the second sub-hole section are both cylindrical holes, the aperture of the first sub-hole section is larger than or equal to 0.3 mm and smaller than or equal to 1 mm, the aperture of the second sub-hole section is larger than or equal to 1.5 mm and smaller than or equal to 3 mm, and the ratio of the aperture of the second sub-hole section to the depth of the second sub-hole section is 1-3.

Wherein, the shell comprises a body and a cover body; the body is provided with a liquid storage tank, and the cover body is covered on the body and matched with the liquid storage tank to form a liquid storage cavity; wherein, the scavenge port is seted up in the lid.

Wherein, the scavenge port sets up in the roof of stock solution chamber.

In order to solve the above technical problem, another technical solution adopted by the present application is: an aerosol-generating device is provided. The aerosol-generating device comprises an atomizer and a power supply assembly; wherein an atomizer is used to house the aerosol-generating substrate, the atomizer being as described above; the power supply assembly is electrically connected with the atomizer and used for supplying power to the atomizer.

According to the atomizer and the aerosol generation device provided by the embodiment of the application, the atomizer is provided with the ventilating hole communicated with the liquid storage cavity, so that the liquid storage cavity is communicated with the atmosphere through the ventilating hole, gas exchange is carried out, and the balance of air pressure inside and outside the liquid storage cavity is maintained; meanwhile, the ventilation hole comprises the hole section, and the aperture of the side, far away from the liquid storage cavity, of the hole section is larger than that of the side, close to the liquid storage cavity, of the hole section, so that the ventilation can be performed by utilizing the part, with the smaller aperture, of the side, close to the liquid storage cavity, of the hole section, and meanwhile, the outflow of the aerosol generating substrate from the part of the hole section is reduced as much as possible; even if the aerosol-generating substrate in the liquid storage cavity flows out due to the capillary action of the partial hole section of the hole section close to one side of the liquid storage cavity, and the aperture of the hole section far away from one side of the liquid storage cavity is larger than that of the hole section close to one side of the liquid storage cavity, therefore, when the aerosol-generating substrate flows out from the liquid storage cavity to a certain aperture of the hole section, the capillary action of the hole section disappears, at the moment, the aerosol-generating substrate is pulled to the periphery by the adsorption action of the side wall of the hole section on the aerosol-generating substrate overflowing to the aperture, so that the liquid level of the aerosol-generating substrate tends to be horizontal under the action of the surface tension, and at the moment, the liquid level of the aerosol-generating substrate is at a distance from the outer surface of the liquid storage cavity, so that even if other objects such as fingers touch the outer surface of the liquid storage cavity, the problem that the aerosol-generating substrate in the liquid storage cavity is touched and brought out due to the capillary action of the ventilation holes is effectively avoided; simultaneously, after negative pressure is formed in the liquid storage cavity, the aerosol generating substrate in the ventilation hole flows back to the liquid storage cavity under the action of pressure difference, so that ventilation can be continuously performed by using the ventilation hole, and the ventilation function of the ventilation hole is ensured.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:

FIG. 1 is a schematic diagram of an atomizer according to an embodiment of the present application;

FIG. 2 is an axial cross-sectional view of a transfer port provided in accordance with a first embodiment of the present application;

FIG. 3 is a schematic view of capillary phenomenon at a first sub-aperture segment according to an embodiment of the present application;

FIG. 4 is a schematic view of the disappearance of capillary at the second sub-aperture segment according to an embodiment of the present application;

FIG. 5 is a schematic axial cross-sectional view of a transfer port provided in accordance with a second embodiment of the present application;

FIG. 6 is a schematic axial cross-sectional view of a transfer port provided in accordance with a third embodiment of the present application;

FIG. 7 is an axial cross-sectional view of a transfer port provided in accordance with a fourth embodiment of the present application;

FIG. 8 is an axial cross-sectional view of a transfer port provided in a fifth embodiment of the present application;

FIG. 9 is an axial cross-sectional view of a transfer port provided in accordance with a sixth embodiment of the present application;

FIG. 10 is an axial cross-sectional view of a transfer port provided in accordance with a seventh embodiment of the present application;

fig. 11 is an axial cross-sectional view of a transfer port provided in an eighth embodiment of the present application;

FIG. 12a is a schematic axial cross-sectional view of a transfer port provided in a ninth embodiment of the present application;

fig. 12b is a schematic axial cross-sectional view of a transfer port provided in a tenth embodiment of the present application;

FIG. 12c is an axial cross-sectional view of a transfer port provided in an eleventh embodiment of the present application;

fig. 12d is an axial cross-sectional view of a transfer port provided in a twelfth embodiment of the present application;

FIG. 13a is a schematic axial cross-sectional view of a transfer port provided in a thirteenth embodiment of the present application;

FIG. 13b is a schematic axial cross-sectional view of a transfer port provided in a fourteenth embodiment of the present application;

FIG. 13c is an axial cross-sectional view of a transfer port provided in accordance with a fifteenth embodiment of the present application;

fig. 14 is a schematic structural diagram of an aerosol-generating device according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terms "first", "second" and "third" in this application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or as implying a number of indicated technical features. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of the feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless explicitly specifically limited otherwise. In the embodiment of the present application, all directional indicators (such as up, down, left, right, front, rear \8230;) are used only to explain the relative positional relationship between the components, the motion situation, etc. at a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

The present application will be described in detail with reference to the accompanying drawings and examples.

The inventor of the present application has found that the prior art generally opens a straight hole or a tapered hole with a diameter gradually decreasing from the liquid storage cavity to the atmosphere. Adopt through hole technical scheme, if the aperture is too big, when the atomizer rocks or keep flat, can make aerosol generation matrix flow out when putting upside down, still can increase the risk that the foreign matter gets into the stock solution chamber and leads to polluting the medicine simultaneously, the processing degree of difficulty can be increased to the aperture undersize, and when the atomizer is kept flat or put upside down, aerosol generation matrix contacts the scavenge port for a long time, easily cause capillary effect, make aerosol generation matrix gathering at the scavenge port opening part, if the user touches this scavenge port department this moment, aerosol generation matrix can adsorb skin surface or gloves surface, then can take aerosol generation matrix out. And by adopting the conical hole technical scheme, the capillary effect is easy to occur, so that the aerosol generating substrate is gathered at the opening of the ventilation hole, and is easy to be taken out by a user.

Accordingly, the present application provides an atomiser employing a new ventilation aperture, and an aerosol-generating device employing the atomiser.

Referring to fig. 1, fig. 1 is a schematic structural diagram of an atomizer according to an embodiment of the present disclosure. In the present embodiment, there is provided a nebulizer 10, in particular the nebulizer 10 being for receiving an aerosol-generating substrate a to atomize the aerosol-generating substrate a upon energization to form an aerosol. The atomizer 10 can be used in the technical fields of medical treatment, beauty treatment, leisure smoking and the like. The atomizer 10 includes: a housing 11.

Wherein, the housing 11 has a reservoir 12 and a ventilation hole 13 communicated with the reservoir 12. The reservoir 12 is configured to hold an aerosol-forming substrate a, which may be a liquid drug, a liquid tobacco, or any other liquid suitable for electronic atomization, wherein the liquid drug is dispersed in a liquid solvent. Referring to fig. 2, the ventilation hole 13 includes a hole section 130, and the hole diameter of the side of the hole section 130 facing away from the reservoir 12 is larger than the hole diameter of the side of the hole section 130 close to the reservoir 12.

In one embodiment, the hole section 130 includes a first sub-hole section 131 and a second sub-hole section 132 connected to each other, the second sub-hole section 132 is located on a side of the first sub-hole section 131 far from the reservoir 12, and an aperture of a port of the second sub-hole section 132 far from the first sub-hole section 131 is larger than that of the first sub-hole section 131. Wherein, the first sub-hole section 131 is directly communicated with the liquid storage cavity 12, and the second sub-hole section 132 is communicated with the outside atmosphere and is communicated with the liquid storage cavity 12 through the first sub-hole section 131.

In the first embodiment of the present application, as shown in fig. 2, the first sub-hole segment 131 is a cylindrical hole, and the cylindrical hole may be a prismatic hole or a cylindrical hole, and is preferably a cylindrical hole for easy production, which is taken as an example in the following embodiments. The aperture of the port of the second sub-bore section 132 remote from the first sub-bore section 131 is larger than the aperture d1 of the first sub-bore section 131. Specifically, the second sub-aperture section 132 may be a cylindrical aperture, or a funnel-shaped aperture with gradually increasing aperture in a direction away from the reservoir 12, and it should be noted that the gradually increasing aperture may be a continuous increase or a gradient increase. It is understood that the second sub-hole section 132 can also be a plurality of hole patterns such as truncated cone, truncated pyramid, hemisphere, semi-ellipsoid, paraboloid of revolution, etc., for the convenience of production, it is preferable that the second sub-hole section 132 is a section parallel to the bottom surface of the second sub-hole section 132, i.e. the cross section is a circular hole pattern, and the bottom surface of the second sub-hole section 132 is a port surface of the second sub-hole section 132 on the side close to the reservoir 12 or far away from the reservoir 12. In the present application, if the cross section of the hole is circular, the diameter of the circle is the diameter of the hole described in the present application; if the cross section of the hole is triangular or polygonal, such as quadrilateral, pentagonal and the like, the diameter of a circumscribed circle of the cross section is the aperture diameter described in the application; if the cross section of the hole is an irregular pattern, the hole diameter is the maximum size of the cross section.

Referring to figure 3, in an embodiment, when the nebulizer 10 is shaken or otherwise oriented such that the aerosol-generating substrate a flows through or contacts the ventilation holes 13 at a low velocity, the aerosol-generating substrate a collects on a side of the first sub-aperture segment 131 adjacent to the reservoir chamber 12; to prevent leakage, the first sub-pore section 131 has a small pore size, and capillary phenomenon occurs. Capillarity is due to the attraction of the surface of a liquid to the surface of a solid, which resembles a stretched rubber membrane, which tends to flatten if the liquid surface is curved, so that a concave liquid exerts a pulling force on the underlying liquid and a convex liquid exerts a pressure on the underlying liquid. The liquid level of the wetting liquid in the capillary is concave, the wetting liquid exerts pull force on the liquid below to enable the liquid to rise along the pipe wall, and when the pull force is equal to the gravity borne by the liquid column in the pipe, the liquid in the pipe stops rising to achieve balance. Specifically, the height H of the liquid rising in the tube can be calculated by the formula H =2 σ cos θ/ρ gr, where σ is the surface tension coefficient of the liquid, θ is the intersection angle of the liquid surface and the tube wall, the angle mainly depends on the type of the liquid and the material of the inner wall of the capillary tube, ρ is the density of the liquid, g is the gravitational acceleration, and r is the radius of the capillary tube. It will be readily appreciated that the height H at which the aerosol-generating substrate a rises within the pores is primarily dependent on the pore size of the ventilation holes 13, since σ, θ and ρ are all dependent on the type of liquid, i.e. the type of aerosol-generating substrate a, and g is a constant parameter. To reduce the capillary effect, i.e. to reduce the rise H of the liquid in the tube, the apertures of the ventilation holes 13 should not be too small, but too large apertures of the ventilation holes 13 may cause leakage problems and increase the risk of contamination of the aerosol-generating substrate a; whereas too small an aperture will result in a greater rise of aerosol-generating substrate a within the ventilation aperture 13, so that aerosol-generating substrate a collects at the end of the ventilation aperture 13 remote from the reservoir 12 and is easily accessible and carried out by the user, and the provision of the second sub-aperture section 132 in this application avoids this problem, as will be described in more detail below.

In a particular embodiment, the inner walls of the first sub-aperture segment 131 have an attractive force on the aerosol-generating substrate a, while the aerosol-generating substrate a has a tendency to move in the direction of gravity due to the action of gravity, thus forming a concave liquid surface, and the tension of the surface of the aerosol-generating substrate a has a tendency to flatten the concave liquid surface, i.e. the concave liquid surface has a pulling force acting against the aerosol-generating substrate a thereunder, opposite to the direction of gravity, such that the aerosol-generating substrate a flows along the inner walls of the first sub-aperture segment 131 towards the atmosphere. Referring to fig. 4, when the liquid level of the aerosol-generating substrate a flows to the second sub-orifice section 132 along the inner wall of the first sub-orifice section 131, because the aperture of the port of the second sub-orifice section 132 is larger than the aperture d1 of the first sub-orifice section 131, the capillary phenomenon disappears at the second sub-orifice section 132, at this time, the adsorption action of the inner wall of the second sub-orifice section 132 on the aerosol-generating substrate a overflowing to the second sub-orifice section 132 pulls the aerosol-generating substrate a around, so that the liquid level of the aerosol-generating substrate a tends to be horizontal under the action of the surface tension, at this time, the pulling force exerted on the liquid column formed by the aerosol-generating substrate a in the ventilation hole 13 in the vertical direction is balanced with the gravity, the aerosol-generating substrate a stops rising in the second sub-orifice section 132, at this time, the liquid level of the aerosol-generating substrate a is at a distance from the outer surface of the liquid storage chamber 12, even if the other objects such as fingers touch the outer surface of the liquid storage chamber 12, the problem that the aerosol-generating substrate a touches the capillary force of the liquid storage chamber 12 and comes out of the ventilation hole 13 can be effectively avoided; meanwhile, after negative pressure is formed in the liquid storage cavity 12, the aerosol-generating substrate a in the ventilation hole 13 flows back into the liquid storage cavity 12 under the action of pressure difference, so that ventilation can be continuously performed by using the ventilation hole 13, and the ventilation function of the ventilation hole 13 is ensured.

Referring again to fig. 2, fig. 2 is a schematic axial cross-sectional view of a transfer port provided in a first embodiment of the present application. In the present embodiment, the aperture d1 of the first sub-aperture segment 131 is greater than or equal to 0.3 mm and less than or equal to 3 mm, and the size of the aperture d1 of the first sub-aperture segment 131 in the present application is within this range, for example, the aperture d1 of the first sub-aperture segment 131 is set to be 1 mm.

The second sub-hole section 132 is a circular truncated cone-shaped hole, the minimum aperture d2 of the second sub-hole section 132 is the aperture of the port of the second sub-hole section 132 close to the first sub-hole section 131, and the minimum aperture d2 is the same as the aperture d1 of the first sub-hole section 131; the maximum aperture d3 of the second sub-hole section 132 is the aperture of the port of the second sub-hole section 132 far from the first sub-hole section 131, and the maximum aperture d3 is greater than or equal to 1.5 mm and less than or equal to 3 mm, for example, in the present embodiment, the maximum aperture d3 is set to 2.5 mm. In the present embodiment, the aperture of the second sub-aperture section 132 increases continuously in a linear increasing manner along the direction away from the liquid storage cavity 12, and it is easy to understand that the aperture of the port of the second sub-aperture section 132 communicating with the atmosphere is the maximum aperture d3. The ratio of the maximum aperture d3 of the second sub-hole section 132 to the depth h of the second sub-hole section 132 is 1-3, for example, 2, and the sizes of the maximum aperture d3 of the second sub-hole section 132 and the depth h of the second sub-hole section 132 are all limited in this range in the following embodiments.

In a particular embodiment, when the aerosol-generating substrate a undergoes capillary phenomenon at the first sub-aperture section 131, the aerosol-generating substrate a flows along the first sub-aperture section 131 to the second sub-aperture section 132, the capillary phenomenon disappears; the maximum aperture d3 of the second sub-hole section 132 is greater than or equal to 1.5 mm and less than or equal to 3 mm, and meanwhile, the ratio of the maximum aperture d3 of the second sub-hole section 132 to the depth h of the second sub-hole section 132 is 1-3; by limiting the size of the second sub-aperture section 132, foreign matters can be prevented from being accumulated at the ventilation aperture 13, and at the same time, the liquid level of the aerosol-generating substrate a is away from the outer surface of the liquid storage cavity 12, so that even if a user touches the outer surface of the liquid storage cavity 12, such as the top surface of the housing 11, the problem that the aerosol-generating substrate a is adsorbed on other objects, such as fingers, can be effectively avoided, and the problem that the aerosol-generating substrate a in the liquid storage cavity 12 is touched and taken out by the capillary force of the ventilation aperture 13 can be effectively avoided; meanwhile, after negative pressure is formed in the liquid storage cavity 12, the aerosol-generating substrate a in the ventilation hole 13 flows back into the liquid storage cavity 12 under the action of pressure difference, so that ventilation can be continuously performed by using the ventilation hole 13, and the ventilation function of the ventilation hole 13 is ensured.

In the second embodiment, referring to fig. 5, the first sub-hole segment 131 is a cylindrical hole, and the hole diameter of the second sub-hole segment 132 is continuously increased along the direction away from the liquid storage chamber 12 at an increasing rate in a gradually decreasing manner. It is easy to understand that the aperture of the port of the second sub-hole section 132 close to the first sub-hole section 131 is the minimum aperture d2 of the second sub-hole section 132, and the aperture of the port of the second sub-hole section 132 far from the first sub-hole section 131 is the maximum aperture d3.

The aperture d1 of the first sub-aperture segment 131 is greater than or equal to 0.3 mm and less than or equal to 3 mm. The minimum aperture d2 of the second sub-aperture section 132 is equal to the aperture d1 of the first sub-aperture section 131, and the maximum aperture d3 of the second sub-aperture section 132 is greater than or equal to 1.5 mm and less than or equal to 3 mm; meanwhile, the ratio of the maximum aperture d3 of the second sub-aperture section 132 to the depth h of the second sub-aperture section 132 is 1 to 3.

In the third embodiment, referring to fig. 6, the first sub-hole segment 131 is a cylindrical hole, and the hole diameter of the second sub-hole segment 132 is continuously increased along the direction away from the liquid storage chamber 12 at an increasing rate. The minimum aperture d2 of the second sub-hole section 132 is equal to the aperture d1 of the first sub-hole section 131. Wherein, the aperture size of the first sub-aperture section 131 and the aperture size of the second sub-aperture section 132 are both within the above-mentioned limited range.

In the above embodiment, the minimum aperture d2 of the second sub-hole section 132 is the aperture of the port of the second sub-hole section 132 on the side close to the first sub-hole section 131, and the minimum aperture d2 is equal to the aperture d1 of the first sub-hole section 131. In other embodiments, the minimum aperture d2 of the second sub-aperture section 132 may also be larger than the aperture d1 of the first sub-aperture section 131, and the minimum aperture d2 is equal to or smaller than the maximum aperture d3 of the second sub-aperture section 132.

In the fourth embodiment, referring to fig. 7, the first sub-hole section 131 and the second sub-hole section 132 are both cylindrical holes, more specifically cylindrical holes, so that the minimum aperture d2 of the second sub-hole section 132 is equal to the maximum aperture d3 thereof, and the aperture of the second sub-hole section 132 is larger than the aperture d1 of the first sub-hole section 131. Specifically, the aperture of the second sub-hole section 132 is greater than or equal to 1.5 mm and less than or equal to 3 mm, and the ratio of the aperture of the second sub-hole section 132 to the depth h of the second sub-hole section 132 is 1 to 3.

In this embodiment, when the aerosol-generating substrate a is subjected to a capillary phenomenon at the first sub-aperture section 131, the aerosol-generating substrate a flows to the second sub-aperture section 132 in the first sub-aperture section 131 in the direction of the outside atmosphere, where the capillary phenomenon weakens or disappears, the aerosol-generating substrate a stops flowing, and at this time, there is a distance from the liquid surface of the aerosol-generating substrate a to the outer surface of the liquid storage chamber 12, so that even if a finger or other object touches the outer surface of the liquid storage chamber 12, the problem that the aerosol-generating substrate a is adsorbed to the finger or other object can be effectively avoided, and further the problem that the aerosol-generating substrate a in the liquid storage chamber 12 is touched and brought out by the capillary force of the ventilation hole 13 can be effectively avoided; meanwhile, after negative pressure is formed in the liquid storage cavity 12, the aerosol-generating substrate a in the ventilation hole 13 flows back into the liquid storage cavity 12 under the action of pressure difference, so that ventilation can be continuously performed by using the ventilation hole 13, and the ventilation function of the ventilation hole 13 is ensured.

In a fifth embodiment, referring to fig. 8, the first sub-bore segment 131 is a cylindrical bore and the second sub-bore segment 132 is a truncated-cone-shaped bore, more specifically a truncated-cone-shaped bore. The aperture of the second sub-aperture segment 132 increases continuously in a linear manner in a direction away from the reservoir chamber 12. It is easy to understand that the aperture of the second sub-hole section 132 close to the port of the first sub-hole section 131 is the minimum aperture d2 of the second sub-hole section 132, and the minimum aperture d2 is larger than the aperture d1 of the first sub-hole section 131; the aperture of the port of the second sub-hole section 132 far from the first sub-hole section 131 is the maximum aperture d3 of the second sub-hole section 132. Wherein, the ratio of the maximum aperture d3 of the second sub-hole section 132 to the depth h of the second sub-hole section 132 is 1-3. The aperture d1 of the first sub-hole segment 131 is greater than or equal to 0.3 mm and less than or equal to 3 mm, and the maximum aperture d3 of the second sub-hole segment 132 is greater than or equal to 1.5 mm and less than or equal to 3 mm.

In a sixth embodiment, referring to fig. 9, the first sub-porous segment 131 is a cylindrical hole, and the pore diameter of the second sub-porous segment 132 continuously increases at a gradually decreasing rate in a direction away from the reservoir chamber 12. It is easy to understand that the aperture of the second sub-hole section 132 close to the port of the first sub-hole section 131 is the minimum aperture d2 of the second sub-hole section 132, and the minimum aperture d2 is larger than the aperture d1 of the first sub-hole section 131; the aperture of the port of the second sub-hole section 132 far from the first sub-hole section 131 is the maximum aperture d3 of the second sub-hole section 132. Wherein, the ratio of the maximum aperture d3 of the second sub-hole section 132 to the depth h of the second sub-hole section 132 is 1-3. The aperture d1 of the first sub-aperture section 131 is greater than or equal to 0.3 mm and less than or equal to 3 mm, and the maximum aperture d3 of the second sub-aperture section 132 is greater than or equal to 1.5 mm and less than or equal to 3 mm.

In the seventh embodiment, referring to fig. 10, the first sub-porous segment 131 is a cylindrical hole, and the pore diameter of the second sub-porous segment 132 continuously increases at an increasing rate in a direction away from the reservoir chamber 12. It is easy to understand that the aperture of the second sub-hole section 132 close to the port of the first sub-hole section 131 is the minimum aperture d2 of the second sub-hole section 132, and the minimum aperture d2 is larger than the aperture d1 of the first sub-hole section 131; the aperture of the port of the second sub-hole section 132 far from the first sub-hole section 131 is the maximum aperture d3 of the second sub-hole section 132. Wherein, the ratio of the maximum aperture d3 of the second sub-hole section 132 to the depth h of the second sub-hole section 132 is 1-3. The aperture d1 of the first sub-hole segment 131 is greater than or equal to 0.3 mm and less than or equal to 3 mm, and the maximum aperture d3 of the second sub-hole segment 132 is greater than or equal to 1.5 mm and less than or equal to 3 mm.

In the above embodiments, the aperture of the second sub-aperture section 132 gradually increases along the direction away from the reservoir 12. Of course, in other embodiments, the pore size of the second sub-porous segment 132 may increase gradually in a direction away from the reservoir 12 or may increase in a gradient.

Referring to fig. 11, in the eighth embodiment, the first sub-hole segment 131 is a cylindrical hole, and the minimum hole diameter d2 of the second sub-hole segment 132 is equal to or greater than the hole diameter d1 of the first sub-hole segment 131; the aperture of the second sub-aperture section 132 increases in a gradient in a direction away from the reservoir 12, and the increasing gradient may be constant, or may be gradually decreasing or gradually increasing. Wherein, the sidewall of the second sub-hole section 132 is stepped. The aperture d1 of the first sub-aperture section 131 is greater than or equal to 0.3 mm and less than or equal to 3 mm, and the maximum aperture d3 of the second sub-aperture section 132 is greater than or equal to 1.5 mm and less than or equal to 3 mm.

In another embodiment, referring to fig. 12a-12d, the hole segment 130 can also be a single hole segment with continuously varying hole diameter. In one embodiment, as shown in fig. 12a, the hole section 130 is a funnel-shaped hole, and the hole diameter of the hole section 130 increases along the direction away from the reservoir 12. In another embodiment, as shown in fig. 12b, the hole segment 130 is also a funnel-shaped hole, and the hole segment 130 is a funnel-shaped hole with a continuously increasing hole diameter in a direction away from the reservoir 12 at an increasing rate. In yet another embodiment, as shown in fig. 12c, the hole segment 130 is also a funnel-shaped hole, and the hole segment 130 is a funnel-shaped hole with a continuously increasing aperture at an increasing rate in a direction away from the reservoir 12. In yet another embodiment, the pore section 130 may also be a single pore section with a gradient of pore sizes; as shown in FIG. 12d, the hole segment 130 may also be a hole with a stepped sidewall, and the hole segment 130 is a stepped hole with a gradually increasing hole diameter in a direction away from the reservoir 12, wherein the rate of the increase in the gradient may be gradually increasing or gradually decreasing. Of course, in other embodiments, the hole segment 130 may also be a plurality of holes, such as truncated cone, truncated pyramid, hemisphere, hemi-ellipsoid, paraboloid of revolution, etc. It will be understood by those skilled in the art that the corresponding hole segment 130 of this embodiment is substantially equivalent to the second sub-hole segment 132 of fig. 2-6; for the description of the relevant parameters such as pore diameter, see above, the details are not repeated here.

In the embodiment provided in fig. 12a-12d, the ventilation aperture 13 comprises an aperture section 130, through which aperture section 130 the reservoir 12 is vented to atmosphere and gas exchange is performed, thereby maintaining a pressure balance between the interior and exterior of the reservoir 12. Meanwhile, the aperture of the side of the bore section 130 remote from the reservoir 12 is larger than the aperture of the side of the bore section 130 close to the reservoir 12, so that not only can the portion of the bore section 130 close to the reservoir 12 with a smaller aperture be used for ventilation, but also the outflow of aerosol-generating substrate a from the portion of the bore section is reduced as much as possible; and even if the aerosol-generating substrate a in the liquid storage chamber 12 flows out due to the capillary action of the partial hole section of the hole section 130 close to the side of the liquid storage chamber 12, because the hole diameter of the hole section 130 far away from the side of the liquid storage chamber 12 is larger than the hole diameter of the hole section 130 close to the side of the liquid storage chamber 12, when the aerosol-generating substrate a flows out from the liquid storage chamber 12 to a certain hole diameter of the hole section 130, the capillary action of the hole section 130 disappears, at this time, the aerosol-generating substrate a is pulled around by the adsorption action of the side wall of the hole section 130 on the aerosol-generating substrate a overflowing to the certain hole diameter, so that the liquid level of the aerosol-generating substrate a tends to be horizontal under the action of the surface tension, and at this time, because the liquid level of the aerosol-generating substrate a has a certain distance from the outer surface of the liquid storage chamber 12, even if other objects such as fingers touch the outer surface of the liquid storage chamber, the problem that the aerosol-generating substrate a is adsorbed to other objects such as fingers can be effectively avoided, and further the problem that the aerosol-generating substrate a in the liquid storage chamber 12 is touched and brought out through the capillary action of the ventilation hole 13 is effectively avoided.

Of course, in other embodiments, see fig. 13a-13c, the ventilation aperture 13 may also comprise a third sub-aperture section 133 and/or a fourth sub-aperture section 134. Wherein the third sub-aperture segment 133 may be located at a side of the aperture segment 130 close to the reservoir 12; the fourth sub-bore section 134 may be located on a side of the bore section 130 facing away from the reservoir chamber 12. The third sub-hole 133 and/or the fourth sub-hole 134 may be any one of the hole patterns provided in the above embodiments, such as a plurality of hole patterns, e.g., a column, a table, a hemisphere, a semi-ellipsoid, a paraboloid of revolution, etc. Of course, the ventilation opening 13 may also include a fifth sub-opening section, a sixth sub-opening section, or more, etc., which is not limited in this application as long as the ventilation opening 13 includes the opening section 130.

Referring to fig. 14, fig. 14 is a schematic structural diagram of an aerosol-generating device according to an embodiment of the present application. In the present embodiment, an aerosol-generating device 100 is provided. The aerosol-generating device 100 comprises a nebulizer 10 and a power supply assembly 20.

Therein, the nebulizer 10 is for receiving an aerosol-generating substrate a while, upon being energized, nebulizing the aerosol-generating substrate a to generate an aerosol. The nebulizer 10 comprises a housing 11, the housing 11 having a reservoir chamber 12 for receiving an aerosol-generating substrate a. Specifically, the housing 11 includes a main body 111 and a cover 113 covering the main body 111; the body 111 has a liquid storage tank 112, and a space formed by the cover 113 and the liquid storage tank 112 is a liquid storage chamber 12. Of course, in other embodiments, the housing 11 may be a single body, the housing 11 has the reservoir 12, and the ventilation hole 13 is formed on the top wall or the side wall of the reservoir 12 near the top wall. Specifically, the ventilation hole 13 is opened on the cover body 113, for example, the cover body 113 includes an annular side wall and a top wall, and the ventilation hole 13 is opened on the annular side wall or the top wall of the cover body 113. The ventilation hole 13 may be the ventilation hole 13 according to any of the above embodiments, and the specific structure and function of the ventilation hole 13 may be described in the above embodiments, and the same or similar technical effects may be achieved, as described below.

A power supply assembly 20 is connected to the nebulizer 10 for supplying power to the nebulizer 10. Wherein the nebulizer 10 and the power supply assembly 20 may be integrally connected to reduce the failure rate of the aerosol-generating device 100. Of course, in other embodiments, the power module 20 may be detachably connected to the atomizer 10, and the present application is not limited thereto.

In the aerosol-generating device 100 according to the present embodiment, the ventilation hole 13 connected to the reservoir chamber 12 is provided, so that the reservoir chamber 12 communicates with the atmosphere through the ventilation hole 13, and gas exchange is performed, thereby maintaining the balance of the air pressure inside and outside the reservoir chamber 12. At the same time, by providing the ventilation aperture 13 with the aperture section 130, the aperture of the side of the aperture section 130 remote from the reservoir 12 is larger than the aperture of the side of the aperture section 130 adjacent to the reservoir 12, which not only allows ventilation to be achieved by the smaller aperture of the side of the aperture section 130 adjacent to the reservoir 12, but also minimizes egress of aerosol-generating substrate a from this portion of the aperture section; even if the aerosol-generating substrate a in the liquid storage cavity 12 flows out due to the capillary action of the partial hole section of the hole section 130 close to the side of the liquid storage cavity 12, and the aperture of the hole section 130 far away from the side of the liquid storage cavity 12 is larger than the aperture of the hole section 130 close to the side of the liquid storage cavity 12, therefore, when the aerosol-generating substrate a flows out from the liquid storage cavity 12 to a certain aperture of the hole section 130, the capillary action of the hole section 130 disappears, at this time, the aerosol-generating substrate a is pulled around by the adsorption action of the side wall of the hole section 130 on the aerosol-generating substrate a overflowing to the position, so that the liquid level of the aerosol-generating substrate a tends to be horizontal under the action of the surface tension, and at this time, because the liquid level of the aerosol-generating substrate a has a certain distance from the outer surface of the liquid storage cavity 12, even if other objects such as fingers touch the outer surface of the liquid storage cavity 12, the problem that the aerosol-generating substrate a is adsorbed to other objects such as fingers can be effectively avoided, and the problem that the aerosol-generating substrate a in the liquid storage cavity 12 is touched and brought out due to the capillary action of the ventilation hole 13; meanwhile, after negative pressure is formed in the liquid storage cavity 12, the aerosol-generating substrate a in the ventilation hole 13 flows back into the liquid storage cavity 12 under the action of pressure difference, so that ventilation can be continuously performed by using the ventilation hole 13, and the ventilation function of the ventilation hole 13 is ensured.

The above embodiments are merely examples and are not intended to limit the scope of the present disclosure, and all modifications, equivalents, and flow charts using the contents of the specification and drawings of the present disclosure or those directly or indirectly applied to other related technical fields are intended to be included in the scope of the present disclosure.

Claims

1. An atomizer, comprising:

the shell is provided with a liquid storage cavity and a ventilation hole communicated with the liquid storage cavity; the reservoir chamber is for storing an aerosol-generating substrate; the vent hole comprises a hole section, and the aperture of one side of the hole section, which is far away from the liquid storage cavity, is larger than the aperture of one side of the hole section, which is close to the liquid storage cavity.

2. The nebulizer of claim 1, wherein the orifice segment is a single orifice segment having a continuously varying orifice diameter.

3. The nebulizer of claim 1, wherein the bore segment comprises a first sub-bore segment and a second sub-bore segment connected to each other, the second sub-bore segment is located on a side of the first sub-bore segment away from the reservoir chamber, and a port of the second sub-bore segment away from the first sub-bore segment has a larger bore diameter than a bore diameter of the first sub-bore segment.

4. The nebulizer of claim 3, wherein the first sub-orifice segment is in direct communication with the reservoir chamber and the second sub-orifice segment is in direct communication with the ambient atmosphere and is in communication with the reservoir chamber through the first sub-orifice segment.

5. The nebulizer of claim 3, wherein the first sub-orifice segment is a cylindrical orifice and the second sub-orifice segment has an increasing pore size in a direction away from the reservoir chamber.

6. The nebulizer of claim 5, wherein the smallest pore size of the second sub-orifice section is the same as the pore size of the first sub-orifice section.

7. The nebulizer of claim 5 or 6, wherein the first sub-orifice section has an orifice diameter of 0.3 mm or more and 1 mm or less.

8. The nebulizer of claim 5 or 6, wherein the second sub-orifice section has a maximum orifice diameter of greater than or equal to 1.5 mm and less than or equal to 3 mm.

9. A nebulizer as claimed in claim 5 or 6, wherein the ratio of the maximum aperture of the second sub-aperture section to the depth of the second sub-aperture section is in the range 1 to 3.

10. A nebulizer as claimed in claim 3, wherein the first sub-bore section and the second sub-bore section are both cylindrical bores, and the second sub-bore section has a bore diameter larger than the bore diameter of the first sub-bore section.

11. The nebulizer of claim 10, wherein the first sub-orifice segment and the second sub-orifice segment are both cylindrical orifices, the first sub-orifice segment has an orifice diameter of 0.3 mm or more and 1 mm or less, the second sub-orifice segment has an orifice diameter of 1.5 mm or more and 3 mm or less, and a ratio of the orifice diameter of the second sub-orifice segment to a depth of the second sub-orifice segment is 1 to 3.

12. The nebulizer of claim 1, wherein the housing comprises:

a body having a reservoir;

the cover body is covered on the body and matched with the liquid storage tank to form a liquid storage cavity; wherein, the vent hole is opened in the lid.

13. The nebulizer of claim 1 or 12, wherein the vent is provided in a top wall of the reservoir chamber.

14. An aerosol-generating device, comprising:

a nebulizer for housing the aerosol-generating substrate, the nebulizer being according to any one of claims 1-13;

and the power supply assembly is electrically connected with the atomizer and used for supplying power to the atomizer.