Atomizer and electronic atomization device

Abstract

The application provides an atomizer and an electronic atomization device. The atomizer comprises a shell and an air exchange channel. The shell is provided with a liquid storage cavity for storing an aerosol generating substrate. The liquid storage cavity is provided with a boss protruding from an inner wall surface of the liquid storage cavity. The boss is provided with an air exchange opening. A first end of the air exchange channel is communicated with the outside atmosphere, and a second end of the air exchange channel is communicated with the air exchange opening to introduce gas into the liquid storage cavity. Through the above arrangement, the separation of gas bubbles is facilitated, the air exchange is smoother, and the problem of producing a burnt taste due to poor air exchange during the suction process is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of atomizers, in particular to an atomizer and an electronic atomization device. BACKGROUND

[0002] The main function of an electronic atomization device is realized by an atomizer, which atomizes an aerosol generating substrate stored therein to generate an aerosol for a user to smoke. Based on the required function, the atomizer usually has a liquid storage cavity for storing the aerosol generating substrate, and a heating body for atomizing the aerosol generating substrate.

[0003] In existing electronic atomization devices, a gas exchange channel is usually provided to supplement gas into the liquid storage cavity to maintain the balance of gas pressure in the liquid storage cavity. The existing gas exchange channel is usually a micro groove or a micro hole. During the gas exchange process, it is difficult for gas bubbles to detach, and after a plurality of gas bubbles merge, they are easy to block the liquid inlet, resulting in insufficient liquid supply, and further causing a burning taste during suction. SUMMARY

[0004] In view of this, the present application provides an atomizer and an electronic atomization device to solve the technical problem that gas bubbles are difficult to detach during the gas exchange process in the prior art.

[0005] To solve the above technical problem, the first technical solution provided by the present application is to provide an atomizer, comprising a shell and a gas exchange channel; a liquid storage cavity for storing an aerosol generating substrate is arranged in the shell; a boss protruding from the inner wall surface of the liquid storage cavity is arranged in the liquid storage cavity; a gas exchange opening is arranged on the boss; a first end of the gas exchange channel is communicated with the outside atmosphere, and a second end of the gas exchange channel is communicated with the gas exchange opening to introduce gas into the liquid storage cavity.

[0006] The gas exchange channel is a direct liquid type gas exchange channel.

[0007] The liquid storage cavity comprises a bottom wall and a side wall, and the boss is arranged on the bottom wall of the liquid storage cavity and is arranged in a spaced manner with the side wall of the liquid storage cavity.

[0008] The distance between the boss and the side wall of the liquid storage cavity is greater than 1 mm.

[0009] The atomizer further comprises a heating seat sealing piece and a column; the heating seat sealing piece has a mounting hole, and the column is arranged in the mounting hole; a gas guide groove is arranged on the side surface of the column, and the gas guide groove cooperates with the hole wall of the mounting hole to form the gas exchange channel.

[0010] The atomizer further comprises a heating assembly; the shell has a receiving cavity, and the heating seat sealing piece, the column and the heating assembly are arranged in the receiving cavity; the shell, the heating assembly, the heating seat sealing piece and the column cooperate to form the liquid storage cavity.

[0011] The top surface of the heating seat sealing piece and the end surface of the column body close to the liquid storage cavity serve as the bottom wall of the liquid storage cavity; the boss is arranged on the end surface of the column body close to the liquid storage cavity; or the boss is arranged on the heating seat sealing piece, and the mounting hole is in communication with the air exchange opening on the boss.

[0012] The atomizer further comprises a heating seat arranged in the accommodation cavity and located on the side of the heating seat sealing piece away from the heating assembly; the column body is an independent element, and one end of the column body away from the liquid storage cavity is arranged in the heating seat; or the column body is integrally formed with the heating seat.

[0013] The heating seat is provided with an air inlet channel, and the air exchange channel is in communication with the air inlet channel.

[0014] The material of the heating seat sealing piece is silica gel or fluorine rubber, and the material of the column body is plastic or plastic.

[0015] The atomizer further comprises a heating seat and a base; the shell has an accommodation cavity, and the heating seat and the base are arranged in the accommodation cavity; the heating seat cooperates with the shell to form the liquid storage cavity, and the top surface of the heating seat serves as the bottom wall of the liquid storage cavity.

[0016] The heating seat has a clamping groove portion, and the base has a clamping portion; the outer surface of the clamping portion is provided with a gas guide groove, and the gas guide groove cooperates with the inner surface of the clamping groove portion to form the air exchange channel.

[0017] The boss is arranged on the side of the heating seat away from the base, and the clamping groove portion is in communication with the air exchange opening on the boss;

[0018] Or, the boss is arranged on one end of the clamping portion close to the heating seat, the gas guide groove is in communication with the air exchange opening on the boss, and the bottom of the clamping groove portion is provided with a through hole; in the state that the clamping portion is arranged in the clamping groove portion, the boss passes through the through hole and is arranged in the liquid storage cavity.

[0019] The atomizer further comprises a heating assembly fixed to the heating seat and / or the base, and the heating assembly and the base form an atomization cavity, and the air exchange channel is in communication with the atomization cavity.

[0020] The material of the heating seat is silica gel or fluorine rubber, and the material of the base is plastic or plastic.

[0021] The cross-sectional equivalent diameter of the air exchange opening of the boss is 0.3mm-0.7mm.

[0022] The cross-sectional shape of the boss is a square ring.

[0023] To solve the above-mentioned technical problems, the second technical solution provided in this application is: to provide an electronic atomizing device, including an atomizer and a host, wherein the atomizer is any of the atomizers described above; and the host is used to control the operation of the atomizer.

[0024] The beneficial effects of this application are as follows: Unlike existing technologies, the atomizer in this application includes a housing and a ventilation channel; the housing has a liquid storage chamber for storing the aerosol generation matrix; the liquid storage chamber has a protrusion protruding from the inner wall of the liquid storage chamber, and a ventilation port is provided on the protrusion; 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. This design facilitates the detachment of air bubbles, makes ventilation smoother, and improves the problem of poor liquid flow and burnt taste caused by poor ventilation during inhalation. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a block diagram of the electronic atomizing device provided in this application;

[0027] Figure 2 This is a schematic diagram of the structure of the first embodiment of the atomizer provided in this application;

[0028] Figure 3 This is a cross-sectional schematic diagram of the heating seat seal in the first embodiment of the atomizer provided in this application;

[0029] Figure 4 This is a schematic diagram of the column structure in the first embodiment of the atomizer provided in this application;

[0030] Figure 5 This is a schematic diagram of the structure of the second embodiment of the atomizer provided in this application;

[0031] Figure 6 This is a schematic diagram of the heating element structure in the second embodiment of the atomizer provided in this application;

[0032] Figure 7 This is a schematic diagram of the structure of the third embodiment of the atomizer provided in this application;

[0033] Figure 8 This is a structural diagram of the atomizer provided in the third embodiment of this application after the heating element and the base are assembled;

[0034] Figure 9 is a schematic view of the structure of the base in the third embodiment of the atomizer provided in the present application;

[0035] Figure 10 is a schematic view of the structure of the first experimental piece provided in the present application;

[0036] Figure 11 is a schematic view of the structure of the second experimental piece provided in the present application;

[0037] Figure 12 is a schematic view of the structure of the third experimental piece provided in the present application;

[0038] Figure 13 is a schematic view of the structure of the fourth experimental piece provided in the present application. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0040] The terms "first", "second", "third" in the present application are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second", "third" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units is not limited to the listed steps or units, but can optionally include steps or units not listed, or can optionally include other steps or units inherent to the process, method, product or device.

[0041] Reference to“an embodiment” herein 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 an embodiment” in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily all directed to the same embodiment, or to a single alternative embodiment. One of ordinary skill in the art will readily recognize from the disclosure herein a wide number of variations, alternatives, and equivalents in the art. It is specifically intended that the application not be limited to the embodiments described herein, but that it include all changes, substitutions, and alterations within the spirit and scope of the application.

[0042] Reference to“an embodiment” herein 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 an embodiment” in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily all directed to the same embodiment, or to a single alternative embodiment. One of ordinary skill in the art will readily recognize from the disclosure herein a wide number of variations, alternatives, and equivalents in the art. It is specifically intended that the application not be limited to the embodiments described herein, but that it include all changes, substitutions, and alterations within the spirit and scope of the application. Figure 1 Figure 1 is a structural schematic diagram of an electronic atomization device provided by the application.

[0043] The electronic atomization device can be used for atomization of liquid substrate. The electronic atomization device comprises an atomizer 1 and a main machine 2 connected with each other. The atomizer 1 is used for storing liquid aerosol generating substrate and atomizing the aerosol generating substrate to form an aerosol for a user to smoke, and the liquid aerosol generating substrate can be a liquid such as a medicinal liquid, a plant leaf liquid, etc. The atomizer 1 can be used in different fields, such as medical treatment, electronic aerosolization, hair spray atomization, etc. The main machine 2 comprises a battery (not shown in the figure), an air flow sensor (not shown in the figure), a controller (not shown in the figure), etc. The battery is used for supplying power to the atomizer 1, so that the atomizer 1 can atomize the aerosol generating substrate to form an aerosol. The air flow sensor is used for detecting air flow changes in the electronic atomization device, and the controller controls whether the atomizer 1 works according to the air flow changes detected by the air flow sensor and a preset program. The atomizer 1 and the main machine 2 can be integrally arranged or detachably connected, and are designed according to specific needs.

[0044] Reference to“an embodiment” herein 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 an embodiment” in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily all directed to the same embodiment, or to a single alternative embodiment. One of ordinary skill in the art will readily recognize from the disclosure herein a wide number of variations, alternatives, and equivalents in the art. It is specifically intended that the application not be limited to the embodiments described herein, but that it include all changes, substitutions, and alterations within the spirit and scope of the application. Figure 2 Figure 2 is a structural schematic diagram of an electronic atomization device provided by the application.

[0045] The atomizer 1 comprises a shell 10, a heating assembly 11, a heating seat sealing element 12, and a heating seat 13. The shell 10 has a receiving cavity 100 therein, the heating assembly 11, the heating seat sealing element 12, and the heating seat 13 are arranged in the receiving cavity 100, and the heating seat 13 is arranged on a side of the heating seat sealing element 12 away from the heating assembly 11.

[0046] ​​The shell 10 is provided with a liquid storage cavity 14 for storing aerosol generating substrate. In the embodiment, the shell 10, the heating assembly 11 and the heating seat seal 12 cooperatively form the liquid storage cavity 14 for storing aerosol generating substrate. The liquid storage cavity 14 comprises a bottom wall and a side wall, the heating seat seal 12 forms the bottom wall of the liquid storage cavity 14, and the shell 10 and the heating assembly 11 form the side wall of the liquid storage cavity 14; that is, the liquid storage cavity 14 comprises a bottom surface and a side surface, the top surface of the heating seat seal 12 forms the bottom surface of the liquid storage cavity 14, and the inner surface of the shell 10 and the outer surface of the heating assembly 11 form the side surface of the liquid storage cavity 14. In an embodiment, the heating assembly 11 is a hollow columnar structure, and the central axis of the shell 10 coincides with the central axis of the heating assembly 11, that is, the liquid storage cavity 14 is arranged around the heating assembly 11.

[0047] The heating assembly 11 comprises a liquid guide and a heating element, the liquid guide is an annular structure, and the heating element is arranged on the inner surface of the liquid guide; the liquid guide guides the aerosol generating substrate in the liquid storage cavity 14 to the heating element by capillary action, and the heating element atomizes the aerosol generating substrate to generate aerosol. The liquid guide can be porous ceramic, cotton core, etc., and the heating element can be a heating film, a heating wire, a heating net, a heating circuit, etc. Since the liquid guide is an annular structure and the heating element is arranged on the inner surface of the liquid guide, the internal space formed by the heating element is an atomization cavity 15. In an embodiment, the heating assembly 11 further comprises a liquid inlet pipe and a mounting seat, and the liquid inlet pipe and the mounting seat cooperatively fix the liquid guide. The liquid inlet pipe is arranged on the outer surface of the liquid guide, and the liquid inlet pipe is provided with a liquid inlet, through which the aerosol generating substrate in the liquid storage cavity 14 enters the liquid guide.

[0048] The shell 10 is further provided with an air outlet channel 16, which communicates with the atomization cavity 15. In an embodiment, the air outlet channel 16 is coaxially arranged with the atomization cavity 15. The heating seat 13 is provided with an air inlet channel 17 at the end away from the heating seat seal 12, and the air inlet channel 17 communicates with the atomization cavity 15. The external atmosphere enters the atomization cavity 15 through the air inlet channel 17, and the aerosol generated by the atomization of the heating assembly 11 is inhaled by the user through the air outlet channel 16.

[0049] The atomizer 1 further comprises a ventilation passage 18, which is a direct-liquid ventilation passage. The ventilation passage 18 is a micron-level passage extending from the atomization cavity 15 or the air inlet passage 17 into the liquid storage cavity 14; in specific implementations, the ventilation passage 18 can be formed in cooperation with other structures in the atomizer 1 or can be formed by a pipe. A first end of the ventilation passage 18 is in communication with the external atmosphere, and a second end of the ventilation passage 18 leads to the liquid storage cavity 14 to achieve ventilation of the liquid storage cavity 14. By providing the ventilation passage 18, when the liquid storage cavity 14 is in a negative pressure state, the external atmosphere is introduced into the liquid storage cavity 14 to balance the air pressure between the liquid storage cavity 14 and the external atmosphere, which facilitates smooth delivery of the aerosol generating substrate in the liquid storage cavity 14 to the heating assembly 11. The first end of the ventilation passage 18 can be directly in communication with the external atmosphere or indirectly in communication with the external atmosphere, which is specifically designed according to requirements; in this embodiment, the first end of the ventilation passage 18 is in communication with the air inlet passage 17 and is in communication with the external atmosphere through the air inlet passage 17.

[0050] The liquid storage cavity 14 is provided with a boss 141 protruding from the inner wall surface of the liquid storage cavity 14, and the boss 141 is provided with a ventilation opening. The ventilation opening on the boss 141 is in communication with the second end of the ventilation passage 18 to achieve ventilation of the liquid storage cavity 14 through the ventilation passage 18. In this embodiment, the ventilation opening on the boss 141 is formed by a through hole extending in a straight line from the top surface of the boss 141 to the bottom surface thereof; in other implementations, only one end of the through hole forming the ventilation opening on the boss 141 is located on the top surface of the boss 141 to facilitate bubble detachment, and the extension mode of the through hole and the location of the other end of the through hole can be designed according to requirements.

[0051] The boss 141 can have a cross-sectional shape of a circular ring, a square ring, a polygonal ring, or the like, which is designed according to requirements. The ventilation opening of the boss 141 has a cross-sectional equivalent diameter of 0.3 mm to 0.7 mm. Alternatively, the boss 141 has a square ring cross-sectional shape, which is beneficial to bubble detachment.

[0052] Generally, the boss 141 is made of plastic. When the cross-sectional equivalent diameter of the ventilation opening of the boss 141 is less than 0.3 mm, it will increase the difficulty of manufacturing the boss 141 made of plastic. If the boss 141 is made of silica gel, according to the manufacturing process, the cross-sectional equivalent diameter of the ventilation opening of the boss 141 can be less than 0.3 mm, but the consistency of silica gel is poorer than that of plastic, and the boss 141 made of silica gel has greater resistance to fluid than the boss 141 made of plastic, which cannot guarantee better ventilation effect.

[0053] When the equivalent diameter of the cross section of the air exchange port of the boss 141 is greater than 0.7 mm, the flow resistance becomes small, which is easy to cause liquid leakage; and when the equivalent diameter is greater than 0.7 mm, two or more suction ports are needed to exchange air once (ideally, the air is exchanged once for every two suction ports), which can affect the liquid downflow speed, and further cause dry burning and other problems. Research shows that the equivalent diameter of the cross section of the air exchange port of the boss 141 is shown in Table 1 when the air is exchanged once for every one, two or three suction ports.

[0054] Table 1 Relationship between the number of suction ports and the equivalent diameter of the cross section of the air exchange port of the boss

[0055] Equivalent diameter (mm) Number of suction ports 0.3 1 0.5 1 0.6 2 0.7 2 0.8 3

[0056] The existing air exchange channel is usually a micro groove or a micro hole, and the micro groove or the micro hole is directly connected with the through hole on the bottom wall or the side wall of the liquid storage cavity, that is, the air exchange port of the air exchange channel (the port of the through hole on the bottom wall or the side wall of the liquid storage cavity) is flush with the inner surface of the liquid storage cavity, and the bubbles are easy to grow along the bottom wall or the side wall of the liquid storage cavity, so that the bubbles are difficult to detach, and the size of the detached bubbles is uncontrollable, and multiple bubbles are easy to fuse, thereby blocking the liquid inlet, causing unstable air exchange, leading to insufficient liquid supply, and generating suction odor. In the embodiment of the present application, the boss 141 is arranged on the inner wall surface of the liquid storage cavity 14, and the air exchange port is arranged on the boss 141, and the air exchange port is communicated with the air exchange channel 18, that is, the air exchange port of the air exchange channel 18 is higher than the inner wall surface of the liquid storage cavity 14, so as to facilitate the destruction of the surface tension of the bubbles entering the liquid storage cavity 14 from the air exchange channel 18, facilitate the detachment of the bubbles, make the air exchange more smooth, reduce the risk of bubbles blocking the liquid inlet, and improve the problem of generating odor due to poor air exchange during the suction process, thereby causing the liquid to flow smoothly.

[0057] In one embodiment, the boss 141 is arranged on the bottom wall of the liquid storage cavity 14 and is spaced apart from the side wall of the liquid storage cavity 14. The distance between the boss 141 and the side wall of the liquid storage cavity 14 is greater than 1 mm. By arranging the boss 141 to be spaced apart from the side wall of the liquid storage cavity 14, the distance between the boss 141 and the side wall of the liquid storage cavity 14 is greater than 1 mm, which can avoid the growth of bubbles along the side wall of the liquid storage cavity 14, reduce the diameter of the detached bubbles, and make the bubbles detach faster and smaller, so as to avoid generating suction odor as much as possible. By arranging the top surface of the boss 141 to protrude from the bottom wall of the liquid storage cavity 14, the growth of bubbles along the bottom wall of the liquid storage cavity 14 can be avoided, the diameter of the detached bubbles can be reduced, and the bubbles can detach faster and smaller.

[0058] Please refer to Figure 3 and Figure 4 , Figure 3 is a cross-sectional view of a sealing element of a heating seat in a first embodiment of an atomizer provided by the present application, Figure 4FIG. 1 is a structural schematic diagram of a column body in a first embodiment of an atomizer provided by the present application.

[0059] In the first embodiment of the atomizer 1, the atomizer 1 further comprises a column body 19, which is a separate element and is fixedly arranged at the heating seat 13 away from the liquid storage cavity 14. The heating seat sealing member 12 has a mounting hole 121, and the column body 19 is arranged in the mounting hole 121; the column body 19 is fixed by the mounting hole 121 and the heating seat 13. That is, the column body 19 is arranged in the accommodation 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 column body 19 close to the liquid storage cavity 14 serve as the bottom wall of the liquid storage cavity 14.

[0060] The side surface of the column body 19 is provided with a gas guide groove 191, which cooperates with the hole wall of the mounting hole 121 to form the gas exchange channel 18. The gas guide groove 191 is arranged in a bending manner along the side surface of the column body 19 and is bent at least once to form a straight liquid type gas exchange channel 18; in an embodiment, the gas guide groove 191 extends in a bending manner along the side surface of the column body 19 (as shown in FIG. 2). Figure 4 The shape and size of the column body 19 are matched with the shape and size of the mounting hole 121. The cross section of the mounting hole 121 and the column body 19 can be square, circular, polygonal, etc.; alternatively, the cross section of the mounting hole 121 and the column body 19 is circular (as shown in FIG. 2), which is convenient for assembly. Figure 4 The shape and size of the column body 19 are matched with the shape and size of the mounting hole 121. The cross section of the mounting hole 121 and the column body 19 can be square, circular, polygonal, etc.; alternatively, the cross section of the mounting hole 121 and the column body 19 is circular (as shown in FIG. 2), which is convenient for assembly.

[0061] Alternatively, the material of the heating seat sealing member 12 is silicone or fluororubber, and the material of the column body 19 is plastic or plastic. When the column body 19 is in interference fit with the hole wall of the mounting hole 121, the heating seat sealing member 12 and the column body 19 are made of the above-mentioned materials, so that the gas guide groove 191 is not compressed, and the deformation of the gas guide groove 191 affecting the gas exchange effect is avoided. It can be understood that the use of silicone or fluororubber for the heating seat sealing member 12 can achieve sealing of the liquid storage cavity 14.

[0062] The heating seat 13 is provided with an air inlet channel 17, and the end of the column body 19 away from the liquid storage cavity 14 is arranged in the heating seat 13. The gas guide groove 191 on the side surface of the column body 19 is in communication with the air inlet channel 17, so that the gas exchange channel 18 is in communication with the air inlet channel 17. The gas exchange channel 18 is in communication with the gas exchange opening on the boss 141.

[0063] In an embodiment, the boss 141 is arranged on the end surface of the column body 19 close to the liquid storage cavity 14 (as shown in FIG. 2). Figure 4As shown); it can be understood that after the column body 19 is assembled in the mounting hole 121, the boss 141 provided on the end face of the column body 19 is arranged in the liquid storage cavity 14, at this time, the end face of the column body 19 close to the liquid storage cavity 14 forms part of the inner wall surface of the liquid storage cavity 14, for example, forms the inner surface of the bottom wall of the liquid storage cavity 14. The boss 141 can be integrally formed with the column body 19, or the boss 141 can be fixed together with the column body 19 by means of glue or the like. Alternatively, the boss 141 is integrally formed with the column body 19, which is convenient for preparation and assembly. Among them, the mounting hole 121 is a through hole penetrating through the heating seat sealing element 12; that is, the mounting hole 121 extends from the top surface of the heating seat sealing element 12 to the bottom surface of the heating seat sealing element 12 (as shown) in a direction perpendicular to the top surface of the sealing element 12. Figure 3

[0064] In another embodiment, the boss 141 is arranged on the side of the heating seat sealing element 12 away from the heating seat 13, and the mounting hole 121 is in communication with the air exchange opening on the boss 141. It can be understood that the shell 10, the heating assembly 11 and the heating seat sealing element 12 cooperate to form the liquid storage cavity 14, the heating seat sealing element 12 forms the bottom wall of the liquid storage cavity 14, and the boss 141 is arranged on the side of the heating seat sealing element 12 away from the heating seat 13, that is, the inner wall surface of the liquid storage cavity 14 is provided with the boss 141. The boss 141 can be integrally formed with the heating seat sealing element 12, or the boss 141 can be fixed together with the heating seat sealing element 12 by means of glue or the like. Alternatively, the boss 141 is integrally formed with the heating seat sealing element 12, which is convenient for preparation and assembly.

[0065] Please refer to Figure 5 and Figure 6 , Figure 5 is a structure schematic view of a second embodiment of the atomizer provided by the present application, Figure 6 is a structure schematic view of a heating seat in the second embodiment of the atomizer provided by the present application.

[0066] In the second embodiment of the atomizer 1, the structure of the atomizer 1 is different from that in the first embodiment of the atomizer 1 in that the column body 19 is integrally formed with the heating seat 13, and the arrangement mode of the air guide groove 191 on the side face of the column body 19.

[0067] In the second embodiment of the atomizer 1, the atomizer 1 comprises a shell 10, a heating assembly 11, a heating seat sealing element 12 and a heating seat 13. Among them, the specific structure of the shell 10, the heating assembly 11, the heating seat sealing element 12 and the heating seat 13 and the arrangement mode therebetween are the same as those in the first embodiment of the atomizer 1, and the arrangement mode of the liquid storage cavity 14, the air inlet channel 17, the atomization cavity 15 and the air outlet channel 16 in the atomizer 1 is the same as that in the first embodiment, which will not be described herein. The arrangement mode of the boss 141 is the same as that in the first embodiment of the atomizer 1, which will not be described herein.

[0068] ​In the second embodiment of the atomizer 1, the column 19 is integrally formed with the heating seat 13. The column 19 has a square cross section. The column 19 includes four side surfaces, and a gas guide groove 191 is arranged on one of the side surfaces, and the gas guide groove 191 is arranged in an "arch" shape or a serpentine shape (as shown in Figure 6 In one embodiment, the column 19, the boss 141 and the heating seat 13 are integrally formed. The column 19 and the boss 141 have square cross sections, and the boss 141 is arranged at a corner of an end surface of the column 19 away from the heating seat 13.

[0069] Specifically, referring to Figure 6 In the heating seat 13, a recess 131 is arranged, and the gas guide groove 191 is in communication with the recess 131, and further in communication with the air inlet channel 17, so as to be in communication with the external atmosphere. The recess 131 can be used to store condensed liquid in the atomization cavity 15 or leaked liquid in the liquid storage cavity 14, so as to prevent the liquid from leaking out of the atomizer 1 and entering the host 2, thereby affecting the performance of the host 2. One end of the air inlet channel 17 protrudes into the recess 131, i.e., is higher than the bottom wall of the recess 131, so as to prevent the liquid in the recess 131 from leaking through the air inlet channel 17. It can be understood that the arrangement mode of the gas guide groove 191 and the air inlet channel 17 in communication in this embodiment is also applicable to the first embodiment of the atomizer 1.

[0070] Please refer to Figure 7-9 , Figure 7 is a structural schematic diagram of a third embodiment of the atomizer provided in the present application, Figure 8 is a structural diagram of the heating seat and the base after assembly in the third embodiment of the atomizer provided in the present application, Figure 9 is a structural schematic diagram of the base in the third embodiment of the atomizer provided in the present application.

[0071] 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 assembly 23. The housing 20 has a receiving cavity 200, and the heating seat 21 and the base 22 are arranged in the receiving cavity 200. The heating seat 21 has a first recess 211 arranged on a surface close to the base 22, the base 22 has a second recess 221 arranged on a surface close to the heating seat 21, the first recess 211 and the second recess 221 cooperatively form a mounting cavity (not shown in the figure), and the heating assembly 23 is arranged in the mounting cavity, i.e., the heating assembly 23 is fixed to the heating seat 21 and / or the base 22, and the heating assembly 23 is arranged in the receiving cavity 200 together with the heating seat 21 and / or the base 22.

[0072] The shell 20 cooperates with the heating seat 21 to form a liquid storage cavity 24 for storing the aerosol generating substrate; that is, the top surface of the heating seat 21 serves as the bottom wall of the liquid storage cavity 24. The shell 20 further forms an air outlet passage 25, the central axis of the air outlet passage 25 coincides with the central axis of the atomizer 1, and the liquid storage cavity 24 is arranged around the air outlet passage 25; that is, the side wall of the liquid storage cavity 24 is the shell 20.

[0073] Two lower liquid passages 2111 are arranged on the bottom wall of the first groove 211, and an air outlet hole 2112 is arranged between the two lower liquid passages 2111. The two lower liquid passages 2111 are arranged on both sides of the air outlet hole 2112, and the lower liquid passages 2111 are in communication with the liquid storage cavity 24. The air outlet hole 2112 is in communication with the air outlet passage 25. The atomization cavity 26 is formed between the heating assembly 23 and the inner surface of the second groove 221; that is, the atomization cavity 26 is arranged between the heating assembly 23 and the base 22, and the air outlet hole 2112 is in communication with the atomization cavity 26. An air inlet passage 27 is arranged on the bottom wall of the second groove 221, one end of the air inlet passage 27 is in communication with the external atmosphere, and the other end is in communication with the atomization cavity 26.

[0074] The aerosol generating substrate in the liquid storage cavity 24 enters the heating assembly 23 through the lower liquid passage 2111, is heated and atomized by the heating assembly 23 to generate an aerosol, and is released in the atomization cavity 26; the external atmosphere enters the atomization cavity 26 through the air inlet passage 27, carries the aerosol in the atomization cavity 26, enters the air outlet passage 25 through the air outlet hole 2112, and reaches the user's mouth to be inhaled.

[0075] The heating assembly 23 includes a liquid guide and a heating element. In an embodiment, the heating element is arranged on the surface of the liquid guide away from the liquid storage cavity 24. The liquid guide guides the aerosol generating substrate to the surface where the heating element is arranged by using the capillary action, and the heating element atomizes the aerosol generating substrate to generate an aerosol. The liquid guide can be a porous ceramic, a cotton core, or the like, and the heating element can be a heating film, a heating wire, a heating net, a heating circuit, or the like.

[0076] The atomizer 1 further includes an air exchange passage 28, which is a direct liquid type air exchange passage. A first end of the air exchange passage 28 is in communication with the external atmosphere, and a second end of the air exchange passage 28 leads to the liquid storage cavity 24 to realize air exchange of the liquid storage cavity 24. By arranging the air exchange passage 28, the external atmosphere is introduced into the liquid storage cavity 24 when the liquid storage cavity 24 is in a negative pressure state, so as to balance the air pressure of the liquid storage cavity 24 and the external atmosphere, and facilitate smooth delivery of the aerosol generating substrate in the liquid storage cavity 24 to the heating assembly 23. The first end of the air exchange passage 28 can be directly in communication with the external atmosphere, or indirectly in communication with the external atmosphere, which is specifically designed according to needs; in this embodiment, the first end of the air exchange passage 28 is in communication with the atomization cavity 26, and the atomization cavity 26 is in communication with the external atmosphere.

[0077] The inner wall surface of the liquid storage cavity 24 is provided with a boss 241, for example, the inner surface of the bottom wall of the liquid storage cavity 24 is provided with a boss 241. The boss 241 is provided with a gas exchange port, and the gas exchange port on the boss 241 is in communication with the second end of the gas exchange channel 28, so as to realize gas exchange of the liquid storage cavity 24 through the gas exchange channel 28. In this embodiment, the gas exchange port on the boss 241 is formed by a through hole extending in a straight line from the top surface of the boss 241 to the bottom surface thereof; in other embodiments, only one end of the through hole forming the gas exchange port on the boss 241 is located on the top surface of the boss 241, so as to facilitate the separation of the bubbles, and the extension mode of the through hole and the location of the other end of the through hole can be designed as required.

[0078] The cross-sectional shape of the boss 241 can be a circular ring, a square ring, a polygonal ring, etc., and can be designed as required. The equivalent diameter of the cross section of the gas exchange port of the boss 241 is 0.3 mm-0.7 mm. Alternatively, the cross-sectional shape of the boss 241 is a square ring, which is beneficial to the separation of bubbles.

[0079] The existing gas exchange channel is usually a micro groove or a micro hole, and the micro groove or the micro hole is directly connected with the bottom wall of the liquid storage cavity, that is, the gas exchange port of the gas exchange channel is flush with the inner surface of the liquid storage cavity, and bubbles are easy to grow along the bottom wall of the liquid storage cavity, so that the bubbles are difficult to separate, the size of the separated bubbles is uncontrollable, multiple bubbles are easy to fuse, and the liquid inlet is easy to be blocked, resulting in unstable gas exchange, insufficient liquid supply, and generation of suction burnt smell. In the embodiment of the present application, the boss 241 is arranged on the inner wall surface of the liquid storage cavity 24, and the gas exchange port is arranged on the boss 241, which is in communication with the gas exchange channel 28, so as to facilitate the destruction of the surface tension of the bubbles entering the liquid storage cavity 24 from the gas exchange channel 28, facilitate the separation of the bubbles, make the gas exchange more smooth, reduce the risk of blocking the liquid passage 2111 by the bubbles, and improve the problem of burnt smell caused by unstable gas exchange during the suction process.

[0080] Further, the boss 241 is arranged on the bottom wall of the liquid storage cavity 24 and is spaced apart from the side wall of the liquid storage cavity 24. The distance between the boss 241 and the side wall 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 cavity 24 and the distance between the boss 241 and the side wall of the liquid storage cavity 24 being greater than 500 μm, the growth of bubbles along the side wall of the liquid storage cavity 24 can be avoided, the diameter of the separated bubbles can be reduced, the bubbles can be separated faster and smaller, and the generation of suction burnt smell can be avoided as much as possible. By arranging the top surface of the boss 241 to protrude from the bottom wall of the liquid storage cavity 24, the growth of bubbles along the bottom wall of the liquid storage cavity 24 can be avoided, the diameter of the separated bubbles can be reduced, and the bubbles can be separated faster and smaller.

[0081] Referring to Figure 8 and Figure 9The heating seat 21 has a clamping groove portion 212, and the base 22 has a clamping portion 222. The structural size of the clamping groove portion 212 is matched with the structural size of the clamping portion 222. A gas guide groove 2221 is arranged on the outer surface of the clamping portion 222, and the gas guide groove 2221 cooperates with the inner surface of the clamping groove portion 212 to form an air exchange channel 28. Specifically, the base 22 has two oppositely arranged clamping portions 222, and the outer surfaces of the two clamping portions 222 are provided with gas guide grooves 2221. The heating seat 21 is correspondingly provided with two clamping groove portions 212. The gas guide grooves 2221 are arranged in a bending manner along the outer surfaces of the clamping portions 222, and are bent at least once to form a straight liquid type air exchange channel 28 (as shown in Figure 9 In an embodiment, the bending shape of the gas guide groove 2221 is in the shape of an arch. One end of the gas guide groove 2221 communicates with the atomization cavity 26, and the other end of the gas guide groove 2221 communicates with the air exchange opening on the boss 241. Specifically, the top surface of the clamping portion 222 is provided with a communication hole (not shown in the figure). One end of the communication hole communicates with the gas guide groove 2221, and the other end is located on the top surface of the clamping portion 222, so as to communicate with the air exchange opening on the boss 241 when the clamping portion 222 is inserted into the clamping groove portion 212.

[0082] Optionally, the material of the heating seat 21 is silica gel or fluororubber, and the material of the base 22 is plastic or plastic. When the clamping groove portion 212 and the clamping portion 222 are in interference fit, the heating seat 21 and the base 22 are made of the above-mentioned materials, so that the gas guide groove 2221 is not compressed, and the deformation of the gas guide groove 2221 does not affect the air exchange effect. It can be understood that the heating seat 21 is made of silica gel or fluororubber, which can realize the sealing of the liquid storage cavity 14.

[0083] In an 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 clamping groove portion 212. The bottom wall of the clamping groove portion 212 has a through hole to communicate with the air exchange opening on the boss 241, so as to communicate the gas guide groove 2221 with the air exchange opening on the boss 241 (as shown in Figure 8 It can be understood that the shell 20 cooperates with the heating seat 21 to form the liquid storage cavity 24, and the heating seat 21 forms the bottom wall of the liquid storage cavity 24. The boss 241 is arranged on the side of the heating seat 21 away from the base 22, that is, the inner wall surface of the liquid storage cavity 24 is provided with the boss 241. The boss 241 can be integrally formed with the heating seat 21, or the boss 241 can be fixed together with the heating seat 21 by means of adhesive or the like.

[0084] In another embodiment, the boss 241 is arranged at one end of the clamping portion 222 close to the heat generating seat 21, and the air guide groove 2221 is communicated with the air exchange opening on the boss 241; the bottom of the clamping groove portion 212 is provided with a through hole, and in the state that the clamping portion 222 is inserted into the clamping groove portion 212, the boss 241 passes through the through hole and is arranged in the liquid storage cavity 24, that is, is arranged on the inner surface of the bottom wall of the liquid storage cavity 24. It can be understood that the shell 20 cooperates with the heat generating seat 21 to form the liquid storage cavity 24, the heat generating seat 21 forms the bottom wall of the liquid storage cavity 24, and the boss 241 is arranged on the inner wall surface of the liquid storage cavity 24 by passing through the through hole on the heat generating seat 21. The boss 241 can be integrally formed with the clamping portion 222, and the boss 241 can also be fixed together with the clamping portion 222 by means of glue or the like; that is, the boss 241 can be integrally formed with the base 22, and the boss 241 can also be fixed together with the base 22 by means of glue or the like.

[0085] It can be understood that the heat generating seat 21 can also have the clamping portion 222, and the base 22 can have the clamping groove portion 211; the outer surface of the clamping portion 222 is provided with the air guide groove 2221, and the air guide groove 2221 cooperates with the inner surface of the clamping groove portion 211 to form the air exchange channel, and other structures are correspondingly changed.

[0086] The following is verified by experiment, and the effect of arranging the boss on the inner wall surface of the liquid storage cavity in the atomizer 1 provided in the embodiments of the present application.

[0087] Please refer to Figure 10 , Figure 10 is a structure schematic diagram of a first experimental piece provided in the present application, Figure 11 is a structure schematic diagram of a second experimental piece provided in the present application, Figure 12 is a structure schematic diagram of a third experimental piece provided in the present application, Figure 13 is a structure schematic diagram of a fourth experimental piece provided in the present application.

[0088] The first experimental piece: no boss 31 is arranged on the inner wall surface of the liquid storage cavity 30, that is, the port of the air exchange opening 32 is flush with the bottom surface of the liquid storage cavity 30, and the air exchange opening 32 is arranged at the middle part of the bottom surface of the liquid storage cavity 30. The lower liquid port 33 of the liquid storage cavity 30 is arranged at the part close to the side wall of the bottom surface of the liquid storage cavity 30 (as shown in Figure 10 ).

[0089] The second experimental piece: the boss 31 is arranged on the inner wall surface of the liquid storage cavity 30, and the boss 31 is arranged at the middle part of the bottom surface of the liquid storage cavity 30. The boss 31 is provided with a through hole to form the air exchange opening 32; wherein the through hole extends along the boss 31 from the top surface to the bottom surface of the boss 31. The plane where the air exchange opening 32 is located is higher than the bottom surface of the liquid storage cavity 30. The lower liquid port 33 of the liquid storage cavity 30 is arranged at the part close to the side wall of the bottom surface of the liquid storage cavity 30 (as shown in Figure 11 ).

[0090] The third experimental piece: a boss 31 is arranged on the inner wall surface of the liquid storage cavity 30, and the boss 31 is arranged at the bottom surface of the liquid storage cavity 30 close to the side wall. The boss 31 is provided with a through hole to form an air exchange port 32; wherein the through hole extends from the top surface of the boss 31 to the bottom surface of the boss 31. The plane where the air exchange port 32 is located is higher than the bottom surface of the liquid storage cavity 30. The lower liquid outlet 33 of the liquid storage cavity 30 is arranged at the bottom surface of the liquid storage cavity 30 close to the side wall (as shown in Figure 12 ).

[0091] The fourth experimental piece: no boss 31 is arranged on the inner wall surface of the liquid storage cavity 30, that is, the port of the air exchange port 32 is flush with the bottom surface of the liquid storage cavity 30, and the air exchange port 32 is arranged at the bottom surface of the liquid storage cavity 30 close to the side wall. The lower liquid outlet 33 of the liquid storage cavity 30 is arranged at the bottom surface of the liquid storage cavity 30 close to the side wall (as shown in Figure 13 ).

[0092] Through experiments on the first experimental piece, the second experimental piece, the third experimental piece and the fourth experimental piece, the corresponding bubble detachment time and bubble detachment diameter are shown in Table 2.

[0093] Table 2 Influence of different air exchange port positions and structures on bubble detachment time and diameter

[0094]

[0095]

[0096] From Table 2, it can be seen that the air exchange port 32 formed by the through hole on the boss 31, and the boss 31 is arranged at the middle part of the bottom surface of the liquid storage cavity 30, that is, the air exchange port 32 is away from the side wall of the liquid storage cavity 30, which can make the bubble detach faster and the bubble detachment diameter smaller, avoid the bubble grow along the bottom surface or side wall of the liquid storage cavity 30, and prevent the bubble from being stuck in the lower liquid outlet 33 due to being too large.

[0097] The above is only an embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation using the content of the specification and drawings of the present application, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. An atomizer characterized by, The application relates to an aerosol generator. The aerosol generator comprises a shell, a liquid storage cavity for storing aerosol generating substrate, a boss protruding from the inner wall of the liquid storage cavity, and an air exchange port arranged on the boss; the liquid storage cavity comprises a bottom wall and a side wall, and the boss is arranged on the bottom wall and spaced from the side wall; An air exchange channel is arranged, the first end of the air exchange channel is connected with the outside air, and the second end of the air exchange channel is connected with the air exchange port to introduce air into the liquid storage cavity; The atomizer further comprises a first component, the first component comprises a heating seat sealing piece and a column, the heating seat sealing piece is provided with a mounting hole, and the column is arranged in the mounting hole; a gas guide groove is arranged on the side surface of the column, and the gas guide groove and the hole wall of the mounting hole cooperate to form the air exchange channel; or The atomizer further comprises a second component, the second component comprises a heating seat and a base, the shell is provided with a receiving cavity, the heating seat and the base are arranged in the receiving cavity, the heating seat and the shell cooperate to form the liquid storage cavity, the top surface of the heating seat serves as the bottom wall of the liquid storage cavity, the heating seat is provided with a clamping groove part, the base is provided with a clamping part, the outer surface of the clamping part is provided with a gas guide groove, and the gas guide groove and the inner surface of the clamping groove part cooperate to form the air exchange channel.

2. The atomizer of claim 1, wherein, The air exchange channel is a straight liquid type air exchange channel.

3. The atomizer of claim 1, wherein, The distance between the boss and the side wall of the liquid storage cavity is greater than 1 mm.

4. The atomizer of claim 1, wherein, When the atomizer comprises the first component, the atomizer further comprises a heating component; the shell is provided with a receiving cavity, and the heating seat sealing piece, the column and the heating component are arranged in the receiving cavity; the shell, the heating component, the heating seat sealing piece and the column cooperate to form the liquid storage cavity; The top surface of the heating seat sealing piece and the end surface of the column close to the liquid storage cavity serve as the bottom wall of the liquid storage cavity; the boss is arranged on the end surface of the column close to the liquid storage cavity; or the boss is arranged on the heating seat sealing piece, and the mounting hole is communicated with the air exchange port on the boss.

5. The atomizer of claim 4, wherein, When the atomizer comprises the first component, the atomizer further comprises a heating seat, the heating seat is arranged in the receiving cavity and located on the side of the heating seat sealing piece away from the heating component; the column is an independent element, and one end of the column away from the liquid storage cavity is arranged in the heating seat; or the column is integrally formed with the heating seat.

6. The atomizer of claim 5, wherein, The heating seat is provided with an air inlet channel, and the air exchange channel is communicated with the air inlet channel.

7. The atomizer of claim 4, wherein, The material of the heating seat sealing piece is silica gel or fluorine rubber, and the material of the column is plastic or plastic.

8. The atomizer of claim 1, wherein, When the atomizer comprises the second component, the boss is arranged on the side of the heating seat away from the base, and the clamping groove part is communicated with the air exchange port on the boss; Or, the boss is arranged on the end of the clamping part close to the heating seat, the gas guide groove is communicated with the air exchange port on the boss, the bottom of the clamping groove part is provided with a through hole, and in the state that the clamping part is arranged in the clamping groove part, the boss passes through the through hole and is arranged in the liquid storage cavity.

9. The atomizer of claim 1, wherein, When the atomizer comprises the second component, the atomizer further comprises a heating component fixed to the heating seat and / or the base, and a misting cavity is formed between the heating component and the base, and the air exchange channel communicates with the misting cavity.

10. The atomizer of claim 1, wherein, When the atomizer comprises the second component, the heating seat is made of silica gel or fluorine rubber, and the base is made of plastic or plastic.

11. The atomizer of claim 1, wherein, The cross-sectional equivalent diameter of the air exchange port of the boss is 0.3-0.7 mm.

12. The atomizer of claim 1, wherein, The cross-sectional shape of the boss is a square ring.

13. An electronic atomizing device, characterized by, The atomizer comprises: The atomizer of any one of claims 1-12; A host computer for controlling the atomizer to work.

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