WO2023056610A1 - Atomizer and electronic atomization apparatus - Google Patents

Abstract

The present application provides an atomizer and an electronic atomization apparatus. The atomizer comprises a housing and a ventilation channel; a liquid storage cavity storing an aerosol generating substrate is disposed in the housing; a boss protruding out of an inner wall surface of the liquid storage cavity is disposed in the liquid storage cavity, a ventilation opening being formed in the boss; a first end of the ventilation channel is in communication with the outside atmosphere, and a second end of the ventilation channel is in communication with the ventilation opening, so as to introduce gas into the liquid storage cavity. By means of the described arrangement, separation of bubbles is facilitated, ventilation is smoother, and the problem of liquid discharging in an inhalation process not being smooth due to poor ventilation, generating a scorched smell, is solved.

Description

Atomizers and Electronic Atomization Devices technical field

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

Background technique

The main function of the electronic atomization device is realized by the atomizer. The atomizer atomizes the aerosol-generating substrate stored inside to generate an aerosol to be inhaled by the user. Based on the required functions, the nebulizer usually has a liquid storage chamber for storing the aerosol-generating substrate, and a heating element for atomizing the aerosol-generating substrate.

In the existing electronic atomization device, a ventilation channel is usually provided to replenish the gas in the liquid storage chamber and maintain the air pressure balance in the liquid storage chamber; while the existing ventilation channel is usually a microgroove or a micropore, and the ventilation channel The air bubbles in the process are difficult to get rid of. After the fusion of multiple air bubbles, it is easy to block the liquid outlet, resulting in insufficient liquid supply, which in turn produces a burnt smell.

Contents of the invention

In view of this, the present application provides an atomizer and an electronic atomization device to solve the technical problem in the prior art that the air bubbles are difficult to escape during the ventilation process.

In order to solve the above technical problems, the first technical solution provided by this application is: provide an atomizer, including a housing and a ventilation channel; the housing is provided with a liquid storage chamber for storing aerosol-generating substrates; the The liquid storage chamber is provided with a boss protruding from the inner wall of the liquid storage chamber, and the boss is provided with an air exchange port; the first end of the air exchange channel is connected to the outside atmosphere, and the first end of the air exchange channel is The second end communicates with the gas exchange port to introduce gas into the liquid storage chamber.

Wherein, the ventilation channel is a direct liquid ventilation channel.

Wherein, the liquid storage chamber includes a bottom wall and a side wall, and the boss is arranged on the bottom wall of the liquid storage chamber and spaced apart from the side wall of the liquid storage chamber.

Wherein, the distance between the boss and the side wall of the liquid storage chamber is greater than 1 mm.

Wherein, the atomizer also includes a heating seat seal and a cylinder; the heating seat seal has an installation hole, and the cylinder is arranged in the installation hole; the side of the cylinder is provided with an air guide groove , the air guide groove cooperates with the hole wall of the installation hole to form the ventilation channel.

Wherein, the atomizer also includes a heating component; the housing has a housing cavity, and the sealing member of the heating seat, the cylinder and the heating component are arranged in the housing cavity; the housing, the The heating assembly, the sealing member of the heating seat and the cylinder cooperate to form the liquid storage chamber;

The top surface of the heating seat seal and the end surface of the cylinder close to the liquid storage chamber are used as the bottom wall of the liquid storage chamber; the boss is arranged on the end surface of the cylinder close to the liquid storage chamber or, the boss is arranged on the sealing member of the heating seat, and the installation hole communicates with the ventilation port on the boss.

Wherein, the atomizer further includes a heating seat, the heating seat is arranged in the receiving cavity, and is located on the side of the heating seat seal away from the heating component; the cylinder is an independent component, and The end of the column away from the liquid storage chamber is disposed on the heating seat; or, the column and the heating seat are integrally formed.

Wherein, the heating seat is provided with an air intake channel, and the ventilation channel communicates with the air intake channel.

Wherein, the sealing member of the heating seat is made of silica gel or fluororubber, and the material of the cylinder is plastic or plastic.

Wherein, the atomizer also includes a heating seat and a base; the housing has a housing cavity, and the heating base and the base are arranged in the housing cavity; the heating base cooperates with the housing to form a The liquid storage chamber, the top surface of the heating seat serves as the bottom wall of the liquid storage chamber;

The heating seat has a slot part, and the base has an engaging part; the outer surface of the engaging part is provided with an air guiding groove, and the air guiding groove cooperates with the inner surface of the engaging groove part to form the replacement gas channel.

Wherein, the boss is arranged on the side of the heating seat away from the base, and the groove part communicates with the ventilation port on the boss;

Or, the boss is arranged at one end of the engaging portion close to the heating seat, and the air guide groove communicates with the ventilation port on the boss; the bottom of the groove is provided with a through hole, When the engaging portion is disposed in the engaging groove portion, the boss passes through the through hole and is disposed in the liquid storage chamber.

Wherein, the atomizer further includes a heating component, the heating component is fixed to the heating seat and/or the base, an atomizing cavity is formed between the heating component and the base, and the ventilation channel and the base The atomization chamber is connected.

Wherein, the heating seat is made of silica gel or fluororubber, and the material of the base is plastic or plastic.

Wherein, the cross-sectional equivalent diameter of the ventilation port of the boss is 0.3mm-0.7mm.

Wherein, the cross-sectional shape of the boss is a square ring.

In order to solve the above technical problems, the second technical solution provided by this application is to provide an electronic atomization device, including an atomizer and a host, and the atomizer is the atomizer described in any one of the above; The host is used to control the work of the atomizer.

Beneficial effects of the present application: Different from the prior art, the atomizer in the present application includes a housing and a ventilation channel; a liquid storage chamber for storing aerosol-generating substrates is provided in the housing; The boss on the inner wall of the liquid storage chamber is provided with a ventilation port; the first end of the ventilation channel is connected to the outside atmosphere, and the second end of the ventilation channel is connected to the ventilation port to introduce gas into the liquid storage chamber. Through the above setting, it is beneficial to the detachment of the air bubbles, making the ventilation more smooth, and improving the problem of burning smell caused by poor ventilation during the suction process.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, other drawings can also be obtained based on these drawings without creative effort.

Fig. 1 is a schematic block diagram of an electronic atomization device provided by the present application;

Fig. 2 is a schematic structural diagram of the first embodiment of the atomizer provided by the present application;

Fig. 3 is a schematic cross-sectional view of the heating seat seal in the first embodiment of the atomizer provided by the present application;

Fig. 4 is a schematic structural view of the cylinder in the first embodiment of the atomizer provided by the present application;

Fig. 5 is a schematic structural view of the second embodiment of the atomizer provided by the present application;

Fig. 6 is a schematic structural view of the heating seat in the second embodiment of the atomizer provided by the present application;

Fig. 7 is a schematic structural view of the third embodiment of the atomizer provided by the present application;

Fig. 8 is a structural view of the third embodiment of the nebulizer provided by the present application after the heating seat and the base are assembled;

Fig. 9 is a schematic diagram of the structure of the base in the third embodiment of the nebulizer provided by the present application;

Fig. 10 is a schematic structural diagram of the first experimental piece provided by the present application;

Fig. 11 is a schematic structural diagram of the second experimental piece provided by the present application;

Fig. 12 is a schematic structural diagram of the third experimental piece provided by the present application;

Fig. 13 is a schematic structural diagram of the fourth experimental piece provided by the present application.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

The terms "first", "second", and "third" in this application are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, features defined as "first", "second", and "third" may explicitly or implicitly include at least one of these features. In the description of the present application, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined. All directional indications (such as up, down, left, right, front, back...) in the embodiments of the present application are only used to explain the relative positional relationship between the various components in a certain posture (as shown in the drawings) , sports conditions, etc., if the specific posture changes, the directional indication also changes accordingly. Furthermore, the terms "include" and "have", as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes unlisted steps or units, or optionally further includes For other steps or units inherent in these processes, methods, products or apparatuses.

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 present application. The occurrences of this 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 understood explicitly and implicitly by those skilled in the art that the embodiments described herein can be combined with other embodiments.

Please refer to FIG. 1 . FIG. 1 is a schematic structural diagram of an electronic atomization device provided in this application.

Electronic atomization devices can be used for atomization of liquid substrates. The electronic atomization device includes an atomizer 1 and a host 2 connected to each other. The atomizer 1 is used to store the liquid aerosol generating substrate and atomize the aerosol generating substrate to form an aerosol that can be inhaled by the user. The liquid aerosol generating substrate can be a liquid substrate such as medicinal liquid or plant grass liquid; The device 1 can be used in different fields, for example, medical treatment, electronic aerosolization, hairspray atomization and so on. The host 2 includes components such as a battery (not shown), an airflow sensor (not shown), and a controller (not shown); the battery is used to supply power to the atomizer 1, so that the atomizer 1 can atomize the aerosol to generate The substrate forms an aerosol; the airflow sensor is used to detect the airflow change in the electronic atomization device, and the controller controls whether the atomizer 1 works according to the airflow change detected by the airflow sensor and the preset program. The atomizer 1 and the host 2 can be integrated or detachably connected, and can be designed according to specific needs.

Please refer to FIG. 2 . FIG. 2 is a schematic structural diagram of the first embodiment of the atomizer provided by the present application.

The atomizer 1 includes a housing 10 , a heating component 11 , a heating seat seal 12 and a heating seat 13 . The housing 10 has a housing chamber 100 , the heating element 11 , the heating seat seal 12 and the heating seat 13 are arranged in the housing chamber 100 , and the heating seat 13 is arranged on the side of the heating seat sealing member 12 away from the heating element 11 .

The casing 10 is provided with a liquid storage cavity 14 for storing the aerosol generating substrate. In this embodiment, the casing 10, the heating component 11 and the sealing member 12 of the heating seat cooperate to form a liquid storage chamber 14, and the liquid storage chamber 14 is used to store the aerosol generating substrate. The liquid storage chamber 14 includes a bottom wall and a side wall, the heating seat seal 12 forms the bottom wall of the liquid storage chamber 14, and the housing 10 and the heating component 11 form the side wall of the liquid storage chamber 14; that is, the liquid storage chamber 14 includes a bottom surface and a On the side, the top surface of the heating seat seal 12 forms the bottom surface of the liquid storage chamber 14 , and the inner surface of the housing 10 and the outer surface of the heating component 11 form the side surfaces of the liquid storage chamber 14 . In one embodiment, the heating component 11 is a hollow cylindrical structure, and the central axis of the housing 10 coincides with the central axis of the heating component 11 , that is, the liquid storage chamber 14 is arranged around the heating component 11 .

The heating component 11 includes a liquid guiding part and a heating part, the liquid guiding part is an annular structure, and the heating part is arranged on the inner surface of the liquid guiding part; the liquid guiding part uses its capillary action to guide the aerosol generating matrix in the liquid storage chamber 14 to The heating element atomizes the aerosol-generating substrate to generate the aerosol. Wherein, the liquid guiding part can be porous ceramics, cotton core, etc., and the heating part can be heating film, heating wire, heating net, heating circuit, etc. Because the liquid guiding part is a ring structure, the heating part is arranged on the inner surface of the liquid guiding part, and the inner space formed by the heating part forms the atomization chamber 15. In one embodiment, the heating component 11 further includes a liquid inlet pipe and a mounting seat, and the liquid inlet pipe and the mounting seat cooperate to fix the liquid guide. The liquid inlet pipe is arranged on the outer surface of the liquid guide member, and the liquid inlet pipe is provided with a liquid inlet, and the aerosol generating substrate in the liquid storage chamber 14 enters the liquid guide member through the liquid inlet.

The casing 10 also has an air outlet channel 16 , and the air outlet channel 16 communicates with the atomization chamber 15 . In one embodiment, the air outlet channel 16 is coaxially arranged with the atomization chamber 15 . The end of the heating seat 13 away from the sealing member 12 of the heating seat is provided with an air inlet passage 17 , and the air inlet passage 17 communicates with the atomizing chamber 15 . The outside air enters the atomizing chamber 15 through the air inlet channel 17 , and the atomized aerosol carrying the heating element 11 is inhaled by the user through the air outlet channel 16 .

The atomizer 1 also includes a ventilation channel 18, which is a direct liquid ventilation channel. The air exchange channel 18 is a micron-scale channel extending from the atomization chamber 15 or the air intake channel 17 to the liquid storage chamber 14; in specific implementation, the air exchange channel 18 can be formed by other structures in the atomizer 1, or Can be formed by a pipe. The first end of the ventilation channel 18 communicates with the outside atmosphere, and the second end of the ventilation channel 18 leads to the liquid storage chamber 14 , so as to realize the ventilation of the liquid storage chamber 14 . By setting the ventilation channel 18, when the liquid storage chamber 14 is in a negative pressure state, the external atmosphere is introduced into the liquid storage chamber 14, so as to realize the air pressure balance between the liquid storage chamber 14 and the external atmosphere, which is beneficial to the aerosol-generating substrate in the liquid storage chamber 14 Smooth delivery to the heating element 11. Wherein, the first end of the ventilation channel 18 can be directly connected to the external atmosphere, and can also be indirectly connected to the external atmosphere, which is specifically designed according to the needs; in this embodiment, the first end of the ventilation channel 18 is connected to the air intake channel 17, It communicates with the outside atmosphere through the air intake channel 17 .

In the liquid storage chamber 14, a boss 141 protruding from the inner wall of the liquid storage chamber 14 is provided. The boss 141 is provided with a ventilation port, and the ventilation port on the boss 141 communicates with the second end of the ventilation channel 18. , to achieve ventilation of the liquid storage chamber 14 through the ventilation channel 18 . In this embodiment, the air exchange port on the boss 141 is formed by a through hole extending straight from the top surface of the boss 141 to its bottom surface; in other embodiments, the air exchange port is formed on the boss 141. One port can be located on the top surface of the boss 141 to facilitate the escape of air bubbles. The extension of the through hole and the position of the other port of the through hole can be designed according to requirements.

The cross-sectional shape of the boss 141 can be a circular ring, a square ring, a polygonal ring, etc., and can be designed according to needs. The cross-sectional equivalent diameter of the ventilation port of the boss 141 is 0.3mm-0.7mm. Optionally, the cross-sectional shape of the boss 141 is a square ring, which facilitates the detachment of air bubbles.

Usually, the material for making the boss 141 is plastic; when the equivalent diameter of the cross-section of the ventilation port of the boss 141 is less than 0.3 mm, it will be more difficult to use plastic to make the boss 141 . If the material of the boss 141 is silica gel, according to the manufacturing process, the equivalent diameter of the section of the ventilation port of the boss 141 can be less than 0.3mm, but the consistency of the silica gel is relatively poor compared to plastic, and the boss 141 made of silica gel is relatively The boss 141 made of plastic has greater resistance to the fluid, which cannot guarantee a better ventilation effect.

When the equivalent diameter of the cross-section of the air exchange port of the boss 141 is greater than 0.7mm, the resistance along the way becomes smaller, which is easy to cause liquid leakage; The next is to change the air every two puffs), which may affect the speed of the liquid, which will cause problems such as dry burning. The study found that the equivalent diameters of the cross-sections of the air exchange ports of the boss 141 for one air exchange at one suction port, two suction ports, and three suction ports are shown in Table 1.

Table 1 The relationship between the number of suction ports and the equivalent diameter of the section of the ventilation port of the boss

Equivalent diameter (mm)	Number of suction ports
0.3	1
0.5	1
0.6	2
0.7	2
0.8	3

Existing ventilation channels are usually microgrooves or micropores, and the microgrooves or micropores are directly connected to the through holes on the bottom wall or the side wall of the liquid storage chamber, that is, the ventilation port of the ventilation channel (liquid storage chamber The bottom wall or the port of the through hole on the side wall) is flush with the inner surface of the liquid storage chamber, and the bubbles are easy to grow along the bottom wall or side wall of the liquid storage chamber, making it difficult for the bubbles to detach, and the size of the detachment of the bubbles is uncontrollable. It is easy for multiple bubbles to fuse, and then it is easy to block the liquid inlet, resulting in unstable ventilation, insufficient liquid supply, and a burnt smell. However, in the embodiment of the present application, a boss 141 is set on the inner wall surface of the liquid storage chamber 14, and a ventilating port is arranged on the boss 141, and the ventilating port communicates with the ventilating passage 18, that is, the ventilating passage 18 of the ventilating passage 18 communicates with the ventilating passage. The air port is higher than the inner wall surface of the liquid storage chamber 14, so as to destroy the surface tension of the air bubbles entering the liquid storage chamber 14 from the air exchange channel 18, facilitate the detachment of the air bubbles, make the air exchange more smooth, and reduce the possibility of air bubbles getting stuck in the liquid inlet. Risk, improve the problem of burnt smell due to poor ventilation during the suction process.

In one embodiment, the boss 141 is disposed on the bottom wall of the liquid storage chamber 14 and spaced apart from the side wall of the liquid storage chamber 14 . The distance between the boss 141 and the sidewall of the liquid storage cavity 14 is greater than 1mm. By setting the boss 141 to be spaced apart from the side wall of the liquid storage chamber 14, usually the radius of the air bubble is 1 mm, and the distance between the boss 141 and the side wall of the liquid storage chamber 14 is greater than 1 mm, so that the air bubbles can be prevented from moving along the side wall of the storage chamber 14. The growth of the side wall of the liquid chamber 14 can reduce the diameter of the detachment of the bubbles, so that the detachment of the bubbles can be faster and smaller, and the burning smell of the suction can be avoided as much as possible. By protruding the top surface of the boss 141 from the bottom wall of the liquid storage chamber 14, the bubbles can be prevented from growing along the bottom wall of the liquid storage chamber 14, the diameter of the bubbles can be reduced, and the bubbles can be separated faster and smaller .

Please refer to Figure 3 and Figure 4, Figure 3 is a schematic cross-sectional view of the heating seat seal in the first embodiment of the atomizer provided by this application, and Figure 4 is a schematic diagram of the cylinder in the first embodiment of the atomizer provided by this application Schematic.

In the first embodiment of the atomizer 1 , the atomizer 1 further includes a cylinder 19 , which is an independent component, and the end of the cylinder 19 away from the liquid storage chamber 14 is fixedly arranged on the heating seat 13 . The heating seat seal 12 has an installation hole 121 , and the column body 19 is disposed in the installation hole 121 ; the column body 19 is fixed through the installation hole 121 and the heating seat 13 . That is, the cylinder 19 is disposed in the housing cavity 100 together with the heating seat sealing member 12 , and the top surface of the heating seat sealing member 12 and the end surface of the cylinder 19 close to the liquid storage chamber 14 serve as the bottom wall of the liquid storage chamber 14 .

The side of the cylinder 19 is provided with an air guide groove 191 , and the air guide groove 191 cooperates with the hole wall of the installation hole 121 to form the ventilation channel 18 . Wherein, the air guide groove 191 is bent and arranged along the side of the cylinder 19, and bent at least once to form a straight liquid ventilation channel 18; The sides are bent and extended (as shown in Figure 4). The shape and size of the cylinder 19 are matched with the shape and size of the installation hole 121 . The cross section of the mounting hole 121 and the post 19 can be square, circular, polygonal, etc.; optionally, the cross section of the mounting hole 121 and the post 19 is circular (as shown in FIG. 4 ), which is convenient for assembly.

Optionally, the heating seat seal 12 is made of silicone or fluororubber, and the cylinder 19 is made of plastic or plastic. When the column body 19 and the hole wall of the mounting hole 121 are in interference fit, the heating seat seal 12 and the column body 19 are made of the above materials, so that the air guide groove 191 is not compressed, and the deformation of the air guide groove 191 is avoided to affect the ventilation effect. It can be understood that the sealing member 12 of the heating seat is made of silica gel or fluorine rubber, which can realize the sealing of the liquid storage chamber 14 .

The heating seat 13 is provided with an air intake channel 17, and the end of the column body 19 away from the liquid storage chamber 14 is arranged on the heating seat 13, and the air guide groove 191 on the side of the column body 19 communicates with the air intake channel 17, so that the ventilation channel 18 and the air intake channel 17 are connected. The intake passage 17 communicates. The ventilation channel 18 communicates with the ventilation opening on the boss 141 .

In one embodiment, the boss 141 is arranged on the end surface of the cylinder 19 close to the liquid storage chamber 14 (as shown in FIG. 4 ); The platform 141 is disposed in the liquid storage chamber 14 . At this time, the end surface of the cylinder 19 close to the liquid storage chamber 14 forms a part of the inner wall of the liquid storage chamber 14 , for example, forms the inner surface of the bottom wall of the liquid storage chamber 14 . The boss 141 can be integrally formed with the cylinder 19, and the boss 141 can also be fixed with the cylinder 19 by means of glue or the like. Optionally, the boss 141 is integrally formed with the cylinder 19, which is convenient for preparation and assembly. Wherein, the installation hole 121 is a through hole that runs through the heating seat seal 12; that is, the installation hole 121 extends from the top surface of the heating seat seal 12 to the bottom surface of the heating seat seal 12 along a direction perpendicular to the top surface of the sealing member 12 (As shown in Figure 3).

In another embodiment, the boss 141 is disposed on the side of the heating seat seal 12 away from the heating seat 13 , and the installation hole 121 communicates with the ventilation port on the boss 141 . It can be understood that the casing 10, the heating component 11 and the heating seat seal 12 cooperate to form the liquid storage chamber 14, the heating seat seal 12 forms the bottom wall of the liquid storage chamber 14, and the boss 141 is arranged on the heating seat seal 12 away from the heating seat One side of 13 , that is, the inner wall of the liquid storage chamber 14 is provided with a boss 141 . The boss 141 can be integrally formed with the heating seat sealing member 12 , and the boss 141 can also be fixed together with the heating seat sealing member 12 by glue or the like. Optionally, the boss 141 is integrally formed with the heating seat seal 12, which is convenient for preparation and assembly.

Please refer to Figure 5 and Figure 6, Figure 5 is a schematic structural diagram of the second embodiment of the atomizer provided by the present application, and Figure 6 is a schematic structural diagram of the heating seat in the second embodiment of the atomizer provided by the present application.

In the second embodiment of the atomizer 1, the structure of the atomizer 1 is different from that of the first embodiment of the atomizer 1 in that: the cylinder 19 is integrally formed with the heating seat 13, and the cylinder 19 The air guide groove 191 of the side of the setting method.

In the second embodiment of the atomizer 1 , the atomizer 1 includes a housing 10 , a heating component 11 , a heating seat seal 12 and a heating seat 13 . Among them, the specific structure of the housing 10, the heating component 11, the heating seat seal 12 and the heating seat 13 and the arrangement among them are the same as those in the first embodiment of the atomizer 1, and the liquid storage chamber in the atomizer 1 14. The arrangement of the air inlet channel 17, the atomization chamber 15, and the air outlet channel 16 is the same as that in the first embodiment, and will not be repeated here. The setting method of the boss 141 is the same as that in the first embodiment of the atomizer 1, and will not be repeated here.

In the second embodiment of the atomizer 1 , the cylinder 19 and the heating seat 13 are integrally formed. The cross section of the cylinder 19 is square. The cylinder 19 includes four sides, and an air guide groove 191 is arranged on one of the sides, and the air guide groove 191 is bent in an "arch" shape or a serpentine shape (as shown in FIG. 6 ). One end of the air guide groove 191 communicates with the air intake channel 17 , and the other end communicates with the air exchange port on the boss 141 . In one embodiment, the column body 19 , the boss 141 and the heating seat 13 are formed integrally. The cross sections of the cylinder 19 and the boss 141 are both square, and the boss 141 is disposed at a corner of the end surface of the cylinder 19 away from the heating seat 13 .

Specifically, referring to FIG. 6, a groove 131 is provided on the heating seat 13, and an air intake passage 17 is provided on the bottom wall of the groove 131. One end of the air guiding groove 191 communicates with the groove 131, and then connects with the air intake passage. 17 to communicate with the outside atmosphere. The groove 131 can be used to store the condensed liquid in the atomizing chamber 15 or the leakage liquid in the liquid storage chamber 14, so as to prevent the liquid from leaking out of the atomizer 1 and entering the main machine 2, thereby affecting the performance of the main machine 2. One end of the air inlet passage 17 protrudes into the groove 131 , that is, is higher than the bottom wall of the groove 131 , so as to prevent the liquid in the groove 131 from leaking through the air inlet passage 17 . It can be understood that the arrangement in which the air guide groove 191 communicates with the air intake channel 17 in this embodiment is also applicable to the first embodiment of the atomizer 1 .

Please refer to Figures 7-9, Figure 7 is a schematic structural diagram of the third embodiment of the atomizer provided by the present application, and Figure 8 is a structural diagram of the third embodiment of the atomizer provided by the present application after the heating seat and the base are assembled , FIG. 9 is a schematic diagram of the structure of the base in the third embodiment of the nebulizer provided by the present application.

In the third embodiment of the atomizer 1 , the atomizer 1 includes a housing 20 , a heating seat 21 , a base 22 and a heating component 23 . The casing 20 has a receiving chamber 200 inside, and the heating seat 21 and the base 22 are disposed in the receiving chamber 200 . The heating seat 21 is provided with a first groove 211 near the surface of the base 22, and the base 22 is provided with a second groove 221 near the surface of the heating seat 21. The first groove 211 and the second groove 221 cooperate to form an installation cavity (not shown in the figure). shown), the heating component 23 is arranged in the installation cavity, that is, the heating component 23 is fixed on the heating seat 21 and/or the base 22, and the heating component 23 is arranged in the receiving cavity 200 together with the heating seat 21 and/or the base 22.

The casing 20 cooperates with the heating seat 21 to form a liquid storage chamber 24 , and the liquid storage chamber 14 is used to store the aerosol generating substrate; that is, the top surface of the heating seat 21 serves as the bottom wall of the liquid storage chamber 24 . The housing 20 is also formed with an air outlet channel 25 whose central axis coincides with the central axis of the atomizer 1 , and the liquid storage chamber 24 is arranged around the air outlet channel 25 ; that is, the side wall of the liquid storage chamber 24 is the housing 20 .

Two lower liquid passages 2111 and one air outlet 2112 are arranged on the bottom wall of the first groove 211, the two lower liquid passages 2111 are arranged on both sides of the air outlet 2112, the lower liquid passages 2111 communicate with the liquid storage chamber 24, The air outlet hole 2112 communicates with the air outlet channel 25 . An atomizing cavity 26 is formed between the heating component 23 and the inner surface of the second groove 221, that is, the atomizing cavity 26 is formed between the heating component 23 and the base 22, and the atomizing cavity 26 is arranged on it, and the air outlet 2112 is connected to the atomizing cavity. The cavity 26 communicates. An air inlet passage 27 is provided on the bottom wall of the second groove 221 , one end of the air inlet passage 27 communicates with the outside atmosphere, and the other end communicates with the atomizing chamber 26 .

The aerosol-generating substrate in the liquid storage chamber 24 enters the heating element 23 through the lower liquid channel 2111, and is heated and atomized by the heating element 23 to produce aerosol and released in the atomizing chamber 26; the outside air enters the atomizing chamber 26 through the air inlet channel 27 , carry the aerosol in the atomization chamber 26, enter the air outlet channel 25 through the air outlet hole 2112, and reach the user's mouth to be inhaled.

Wherein, the heating component 23 includes a liquid guiding element and a heating element. In one embodiment, the heating element is arranged on the surface of the liquid guiding element away from the liquid storage chamber 24, and the liquid guiding element uses its capillary action to guide the aerosol-generating substrate to the surface where the heating element is located, and the heating element generates the matrix mist from the aerosol. transform into aerosols. The liquid guiding part can be porous ceramics, cotton core, etc., and the heating part can be heating film, heating wire, heating net, heating circuit, etc.

The atomizer 1 also includes a ventilation channel 28, which is a direct liquid ventilation channel. The first end of the ventilation channel 28 communicates with the outside atmosphere, and the second end of the ventilation channel 28 leads to the liquid storage chamber 24 , so as to realize the ventilation of the liquid storage chamber 24 . By setting the ventilation channel 28, when the liquid storage chamber 24 is in a negative pressure state, the external atmosphere is introduced into the liquid storage chamber 24, so as to realize the air pressure balance between the liquid storage chamber 24 and the external atmosphere, which is beneficial to the aerosol-generating substrate in the liquid storage chamber 24 Smooth delivery to the heating element 23. Wherein, the first end of the ventilation channel 28 can be directly connected to the external atmosphere, or can be indirectly connected to the external atmosphere, which is specifically designed according to the needs; in this embodiment, the first end of the ventilation channel 28 is connected to the atomization chamber 26, It communicates with the outside atmosphere through the atomizing chamber 26 .

A boss 241 is provided on the inner wall of the liquid storage chamber 24 , for example, a boss 241 is provided on the inner surface of the bottom wall of the liquid storage chamber 24 . The boss 241 is provided with a ventilation port, and the ventilation port on the boss 241 communicates with the second end of the ventilation channel 28 , so that the liquid storage chamber 24 can be ventilated through the ventilation channel 28 . In this embodiment, the air exchange port on the boss 241 is formed by a through hole extending straight from the top surface of the boss 241 to its bottom surface; in other embodiments, the air exchange port is formed on the boss 241 through hole One port of the through hole can be located on the top surface of the boss 241 to facilitate the escape of air bubbles. The extension of the through hole and the position of the other port of the through hole can be designed according to needs.

The cross-sectional shape of the boss 241 can be a circular ring, a square ring, a polygonal ring, etc., and it can be designed according to the needs. The cross-sectional equivalent diameter of the ventilation port of the boss 241 is 0.3mm-0.7mm. Optionally, the cross-sectional shape of the boss 241 is a square ring, which facilitates the detachment of air bubbles.

Existing air exchange channels are usually microgrooves or micropores, which are directly connected to the bottom wall of the liquid storage chamber, that is, the air exchange opening of the air exchange channel is flush with the inner surface of the liquid storage chamber, and the air bubbles are easy to flow along. The growth of the bottom wall of the liquid storage chamber makes it difficult for the bubbles to detach, and the size of the detachment of the bubbles is uncontrollable, and it is easy for multiple bubbles to merge, and then it is easy to block the liquid inlet, resulting in unstable ventilation, insufficient liquid supply, and suction coke. taste. However, in the embodiment of the present application, a boss 241 is provided on the inner wall surface of the liquid storage chamber 24, and a ventilation port is provided on the boss 241. 28 The surface tension of the air bubbles entering the liquid storage chamber 24 is conducive to the detachment of the air bubbles, making the air exchange more smooth, reducing the risk of air bubbles being stuck in the lower liquid channel 2111, and improving the poor air exchange during the suction process, so that the lower liquid is not smooth Burnt smell problem.

Further, the boss 241 is disposed on the bottom wall of the liquid storage chamber 24 and spaced apart from the side wall of the liquid storage chamber 24 . The distance between the boss 241 and the sidewall of the liquid storage cavity 24 is greater than 500 μm. By arranging the boss 241 to be spaced apart from the side wall of the liquid storage chamber 24, and the distance between the boss 241 and the side wall of the liquid storage chamber 24 is greater than 500 μm, it is possible to prevent air bubbles from moving along the side wall of the liquid storage chamber 24. Growth can reduce the diameter of the bubble detachment, so that the bubble can detach faster and smaller, and avoid the burning smell as much as possible. By protruding the top surface of the boss 241 from the bottom wall of the liquid storage chamber 24, the growth of air bubbles along the bottom wall of the liquid storage chamber 24 can be avoided, the diameter of the bubble detachment can be reduced, and the detachment of the bubbles is faster and smaller .

Referring to FIG. 8 and FIG. 9 , the heating base 21 has a locking portion 212 , and the base 22 has a locking portion 222 , and the structural size of the locking portion 212 is matched with the structural size of the locking portion 222 . An air guiding groove 2221 is provided on the outer surface of the engaging portion 222 , and the air guiding groove 2221 cooperates with the inner surface of the engaging groove portion 212 to form a ventilation channel 28 . Specifically, the base 22 has two engaging portions 222 oppositely arranged, and the outer surfaces of the two engaging portions 222 are provided with air guiding grooves 2221, and the heating seat 21 is correspondingly provided with two engaging groove portions 212; The slot 2221 is bent along the outer surface of the engaging portion 222 and bent at least once to form a straight liquid ventilation channel 28 (as shown in FIG. 9 ). In one embodiment, the bent shape of the air guide groove 2221 is "bow". One end of the air guide groove 2221 communicates with the atomization chamber 26 , and the other end of the air guide groove 2221 communicates with the ventilation port on the boss 241 . Specifically, a communication hole (not shown) is opened on the top surface of the engaging portion 222 . One end of the communication hole communicates with the air guiding groove 2221 , and the other end is located on the top surface of the engaging portion 222 , so as to communicate with the ventilation opening on the boss 241 when the engaging portion 222 is inserted into the engaging groove portion 212 .

Optionally, the heating seat 21 is made of silica gel or fluorine rubber, and the base 22 is made of plastic or plastic. When the groove part 212 and the engaging part 222 are in an interference fit, the heating seat 21 and the base 22 are made of the above-mentioned materials, so that the air guide groove 2221 is not compressed, and the deformation of the air guide groove 2221 is avoided to affect the ventilation effect. It can be understood that the heating seat 21 is made of silica gel or fluorine rubber, which can realize the sealing of the liquid storage chamber 14 .

In one embodiment, the boss 241 is arranged on the side of the heating seat 21 away from the base 22, and the boss 241 is arranged corresponding to the bottom wall of the groove part 212, and the bottom wall of the groove part 212 has a through hole to connect with the boss 241. The air exchange port is connected, and then the air guide groove 2221 is communicated with the air exchange port on the boss 241 (as shown in FIG. 8 ). It can be understood that the casing 20 cooperates with the heating seat 21 to form the liquid storage chamber 24, and the heating seat 21 forms the bottom wall of the liquid storage chamber 24. A boss 241 is provided on the inner wall. The boss 241 can be integrally formed with the heating seat 21 , and the boss 241 can also be fixed together with the heating seat 21 by glue or the like.

In another embodiment, the boss 241 is arranged at one end of the engaging portion 222 close to the heating seat 21, and the air guide groove 2221 communicates with the ventilation port on the boss 241; the bottom of the groove part 212 is provided with a through hole. When the engaging portion 222 is inserted into the engaging groove portion 212 , the boss 241 passes through the through hole and is disposed in the liquid storage chamber 24 , that is, disposed on the inner surface of the bottom wall of the liquid storage chamber 24 . It can be understood that the casing 20 cooperates with the heating seat 21 to form the liquid storage chamber 24, the heating seat 21 forms the bottom wall of the liquid storage chamber 24, and the boss 241 is arranged in the liquid storage chamber 24 through the through hole on the heating seat 21, that is, the storage chamber 24 A boss 241 is disposed on the inner wall of the liquid chamber 24 . The boss 241 can be integrally formed with the engaging portion 222, and the boss 241 can also be fixed together with the engaging portion 222 by means of glue or the like; Fastened together by means of glue or the like.

It can be understood that the heating seat 21 may also have an engaging portion 222, the base 22 may have an engaging groove portion 211, and the outer surface of the engaging portion 222 is provided with an air guiding groove 2221, and the air guiding groove 2221 is matched with the inner surface of the engaging groove portion 211. A ventilation channel is formed, and other structures are changed accordingly.

In the following, experiments are conducted to verify the effect of providing the boss on the inner wall of the liquid storage chamber in the atomizer 1 provided in the embodiment of the present application.

Please refer to Fig. 10, Fig. 10 is a schematic structural diagram of the first experimental piece provided by the present application, Fig. 11 is a schematic structural diagram of the second experimental piece provided by the present application, Fig. 12 is a schematic structural diagram of the third experimental piece provided by the present application, and Fig. 13 is Schematic diagram of the structure of the fourth experimental piece provided by this application.

The first experimental piece: the boss 31 is not provided on the inner wall of the liquid storage chamber 30, that is, the port of the air exchange port 32 is flush with the bottom surface of the liquid storage chamber 30, and the air exchange port 32 is arranged on the bottom surface of the liquid storage chamber 30. middle part. The lower liquid port 33 of the liquid storage chamber 30 is disposed on the bottom surface of the liquid storage chamber 30 near its side wall (as shown in FIG. 10 ).

The second test piece: a boss 31 is provided on the inner wall of the liquid storage chamber 30 , and the boss 31 is arranged at the middle of the bottom surface of the liquid storage chamber 30 . A through hole is provided on the boss 31 to form a ventilation opening 32 ; wherein, the through hole extends along the boss 31 from its top surface to its bottom surface. The plane where the ventilation port 32 is located is higher than the bottom surface of the liquid storage chamber 30 . The lower liquid port 33 of the liquid storage chamber 30 is disposed on the bottom surface of the liquid storage chamber 30 near its side wall (as shown in FIG. 11 ).

The third experimental piece: a boss 31 is provided on the inner wall of the liquid storage chamber 30 , and the boss 31 is arranged at the bottom surface of the liquid storage chamber 30 close to its side wall. A through hole is provided on the boss 31 to form a ventilation opening 32 ; wherein, the through hole extends along the boss 31 from its top surface to its bottom surface. The plane where the ventilation port 32 is located is higher than the bottom surface of the liquid storage chamber 30 . The lower liquid port 33 of the liquid storage chamber 30 is disposed on the bottom surface of the liquid storage chamber 30 near its side wall (as shown in FIG. 12 ).

The fourth implementation part: no boss 31 is set on the inner wall of the liquid storage chamber 30, that is, the port of the air exchange port 32 is flush with the bottom surface of the liquid storage chamber 30, and the air exchange port 32 is arranged on the bottom surface of the liquid storage chamber 30 close to the part of its side wall. The lower liquid port 33 of the liquid storage chamber 30 is disposed on the bottom surface of the liquid storage chamber 30 near its side wall (as shown in FIG. 13 ).

Through experiments on the first experimental piece, the second experimental piece, the third experimental piece and the fourth experimental piece, the results of the corresponding bubble detachment time and bubble detachment diameter are shown in Table 2.

Table 2 Effects of different ventilation port positions and structures on bubble detachment time and diameter

the	Bubble detachment time (s)	Bubble escape diameter(mm)
first experimental piece	35	3.24
Second experiment	15	2.16
The third experimental piece	twenty one	non-spherical

The fourth experiment

27

non-spherical

It can be seen from Table 2 that the ventilation port 32 formed by the through hole on the boss 31, and the boss 31 is arranged in the middle of the bottom surface of the liquid storage chamber 30, that is, the ventilation port 32 is away from the side wall of the liquid storage chamber 30, can be Make the bubbles detach faster and the diameter of the bubbles detach smaller, avoid the growth of the bubbles along the bottom surface or side of the liquid storage chamber 30, and prevent the bubbles from getting stuck in the liquid outlet 33 when they are too large.

The above is only the implementation of the application, and does not limit the patent scope of the application. Any equivalent structure or equivalent process conversion made by using the specification and drawings of the application, or directly or indirectly used in other related technologies fields, are all included in the scope of patent protection of this application in the same way.

Claims (16)

1. A nebulizer, comprising:

   The housing is provided with a liquid storage chamber for storing aerosol-generating substrates; the liquid storage chamber is provided with a boss protruding from the inner wall of the liquid storage chamber, and the boss is provided with a ventilation port;

   A ventilation channel, the first end of the ventilation channel communicates with the outside atmosphere, and the second end of the ventilation channel communicates with the ventilation port, so as to introduce gas into the liquid storage chamber.
2. The atomizer according to claim 1, wherein the ventilation channel is a direct liquid ventilation channel.
3. The atomizer according to claim 1, wherein the liquid storage chamber includes a bottom wall and a side wall, and the boss is arranged on the bottom wall of the liquid storage chamber and is spaced from the side wall of the liquid storage chamber set up.
4. The atomizer according to claim 3, wherein the distance between the boss and the side wall of the liquid storage chamber is greater than 1mm.
5. The atomizer according to claim 3, wherein the atomizer further comprises a heat-generating seat seal and a cylinder; the heat-generating seat seal has an installation hole, and the cylinder is arranged in the installation hole; The side of the cylinder is provided with an air guiding groove, and the air guiding groove cooperates with the hole wall of the installation hole to form the ventilation channel.
6. The atomizer according to claim 5, wherein the atomizer further includes a heating component; the housing has a housing cavity, and the heating seat seal, the cylinder and the heating component are arranged in the In the accommodating cavity; the casing, the heating component, the sealing member of the heating seat and the column cooperate to form the liquid storage cavity;

   The top surface of the heating seat seal and the end surface of the cylinder close to the liquid storage chamber are used as the bottom wall of the liquid storage chamber; the boss is arranged on the end surface of the cylinder close to the liquid storage chamber or, the boss is arranged on the sealing member of the heating seat, and the installation hole communicates with the ventilation port on the boss.
7. The atomizer according to claim 6, wherein the atomizer further comprises a heating seat, the heating seat is arranged in the accommodating cavity, and is located at a side of the heating seat seal away from the heating component. side; the column is an independent component, and the end of the column away from the liquid storage chamber is arranged on the heating seat; or, the column and the heating seat are integrally formed.
8. The atomizer according to claim 7, wherein an air inlet passage is provided on the heating seat, and the ventilation passage communicates with the air inlet passage.
9. The atomizer according to claim 6, wherein the sealing member of the heating seat is made of silica gel or fluorine rubber, and the material of the cylinder is plastic or plastic.
10. The atomizer according to claim 3, wherein the atomizer further comprises a heating seat and a base; the casing has a housing cavity, and the heating base and the base are arranged in the housing cavity; The heating seat cooperates with the housing to form the liquid storage chamber, and the top surface of the heating seat serves as the bottom wall of the liquid storage chamber;

    The heating seat has a slot part, and the base has a locking part; the outer surface of the locking part is provided with an air guide groove, and the air guide groove cooperates with the inner surface of the locking groove part to form the replacement gas channel.
11. The atomizer according to claim 10, wherein the boss is arranged on the side of the heat generating seat away from the base, and the groove part communicates with the ventilation port on the boss;

    Or, the boss is arranged at one end of the engaging portion close to the heating seat, and the air guide groove communicates with the ventilation port on the boss; the bottom of the groove is provided with a through hole, When the engaging portion is disposed in the engaging groove portion, the boss passes through the through hole and is disposed in the liquid storage chamber.
12. The atomizer according to claim 10, wherein the atomizer further comprises a heating component, the heating component is fixed on the heating seat and/or the base, and the heating component and the base are An atomizing chamber is formed, and the ventilation channel communicates with the atomizing chamber.
13. The atomizer according to claim 10, wherein the heating seat is made of silica gel or fluorine rubber, and the material of the base is plastic or plastic.
14. The atomizer according to claim 1, wherein the cross-sectional equivalent diameter of the ventilation port of the boss is 0.3mm-0.7mm.
15. The atomizer according to claim 1, wherein the cross-sectional shape of the boss is a square ring.
16. An electronic atomization device, including:

    The atomizer according to any one of claims 1-15;

    The host is used to control the work of the atomizer.

Images