WO2023123245A1

WO2023123245A1 - Atomizer and electronic atomization device

Info

Publication number: WO2023123245A1
Application number: PCT/CN2021/143247
Authority: WO
Inventors: 李伟
Original assignee: 深圳麦克韦尔科技有限公司
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2023-07-06
Also published as: CN218784242U

Abstract

Disclosed in the present application are an atomizer and an electronic atomization device. The atomizer comprises a housing, a support frame and a heating assembly. The support frame is disposed in the housing. The support frame and the housing cooperate to form a liquid storage cavity. The support frame is provided with an accommodating portion. A vent needle hole is provided at a side wall of the accommodating portion, and is used for communicating an interior space of the accommodating portion with the liquid storage cavity. The heating assembly is disposed in the accommodating portion. The heating assembly is provided with an atomization cavity, which is in communication with outside air. An outer surface of the heating assembly and an inner surface of the accommodating portion cooperate to form a communication channel. A first end of the communication channel is in communication with the vent needle hole, and a second end of the communication channel is in communication with outside air. The communication channel and the atomization cavity are arranged in parallel. By means of the above arrangement, ventilation can be performed on the liquid storage cavity easily, thereby ensuring that sufficient liquid is supplied to the heating body.

Description

Atomizers and Electronic Atomization Devices

technical field

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

Background technique

The electronic atomization device is composed of a heating element, a battery, and a control circuit. The atomizer includes a liquid storage cavity, an air flow channel and a heating element. Wherein, the liquid storage chamber is used to store the aerosol-generating substrate. When the user inhales, the control circuit controls the battery to provide electric energy so that the heating element heats and atomizes the aerosol-generating substrate to generate an aerosol.

With the suction, the aerosol-generating substrate in the liquid storage chamber is consumed, and a part of air needs to enter the liquid storage chamber through the ventilation structure, so as to prevent the negative pressure in the liquid storage chamber from being too large and the aerosol-generating substrate cannot be supplied to the heating element. At present, the inlet of the ventilation structure is generally designed on the atomization chamber or the air outlet channel. Due to the existence of suction negative pressure during suction, it is difficult to ventilate, which in turn leads to insufficient supply of aerosol-generating substrates on the heating element and scorching.

Contents of the invention

The atomizer and the electronic atomization device provided by the present application solve the technical problem that the ventilating structure in the prior art is difficult to ventilate.

In order to solve the above technical problems, the first technical solution provided by this application is to provide an atomizer, including: a housing, a bracket and a heating component; the bracket is arranged in the housing; the bracket and the The shell cooperates to form a liquid storage chamber; the bracket has a receiving part; the side wall of the receiving part is provided with a ventilating pinhole, and the ventilating pinhole communicates with the inner space of the receiving part and the liquid storing chamber; The heating component is arranged in the receiving part; the heating component forms an atomization cavity, and the atomization cavity communicates with the outside air; the outer surface of the heating component cooperates with the inner surface of the receiving part to form a communication channel, The first end of the communication channel communicates with the ventilation pinhole, and the second end of the communication channel communicates with the outside air; the communication channel is arranged in parallel with the atomization chamber.

Wherein, the ventilation pinhole is not higher than the bottom surface of the liquid storage chamber.

Wherein, a first groove is provided on the outer surface of the receiving portion close to the bottom surface of the liquid storage chamber, and the ventilation pinhole is provided on the bottom wall of the first groove.

Wherein, the outer surface of the heating component is provided with a second groove, and the inner surface of the receiving part cooperates with the second groove to form the communication channel.

Wherein, the end surface of the heating component close to the top wall of the accommodating part is spaced apart from the inner surface of the top wall of the accommodating part to form a gap with capillary force, and the atomization chamber is connected to the exchange chamber through the gap. Gas pinhole connected.

Wherein, the outer surface of the heating component is provided with a third groove, and the third groove cooperates with the inner surface of the accommodating part to form a liquid guiding channel; the first end of the liquid guiding channel communicates with the gap , the second end of the liquid guide channel communicates with the ventilation needle hole.

Wherein, the cross-sectional area of the liquid guiding channel is smaller than the cross-sectional area of the communicating channel.

Wherein, the heating assembly includes a heating element, a package, and a support; the support includes side walls and a bottom wall connected to each other, and the package is arranged in a space surrounded by the side walls and the bottom wall of the support Inside, the heating element is arranged in the package and cooperates with the package to form an atomization chamber; the support is a wedge-shaped structure; the side wall of the support is far away from the surface of the pressing part and the The inner surface of the receiving part cooperates to form the communication channel and the liquid guiding channel.

Wherein, the package includes a fixing part and a pressing part; the fixing part has a mounting groove, and the heating element is arranged in the installing groove; One side of the bottom wall, the pressing part abuts against the side wall of the installation groove; the pressing part, the fixing part and the heating element cooperate to form the atomization chamber; the supporting part The side wall is arranged on the side of the pressing member away from the heating element, and the bottom wall of the supporting member is arranged on the end of the fixing member and the pressing member.

Wherein, the side wall of the support member away from the surface of the package forms an included angle of 15-30 degrees with the bottom wall of the support member, so that the support member forms a wedge-shaped structure; the side of the support member A surface of the wall close to the enclosure is substantially perpendicular to the bottom wall of the support.

Wherein, the heating component includes a heating body, and the atomizing surface of the heating body is substantially parallel to the axis of the atomizer.

Wherein, the heating component includes a heating body, and the heating body is a sheet structure.

In order to solve the above technical problems, the second technical solution provided by this application is: provide an electronic atomization device, including: an atomizer and a host; the atomizer is used to store and atomize aerosol-generating substrates; the The atomizer is the atomizer described in any one of the above; the host is used to provide energy to the heating component and control the operation of the heating component.

The atomizer and the electronic atomization device provided by the present application, the atomizer includes a housing, a bracket and a heating component; the bracket is arranged in the housing; the bracket and the housing cooperate to form a liquid storage chamber; The side wall of the side wall is provided with a ventilation pinhole, and the ventilation pinhole is connected to the inner space of the storage part and the liquid storage chamber; the heating component is arranged in the storage part; the heating component forms an atomization chamber, and the atomization chamber is connected with the outside air; the heating component The outer surface cooperates with the inner surface of the receiving part to form a communication channel, the first end of the communication channel communicates with the ventilation pinhole, and the second end of the communication channel communicates with the outside air; the communication channel is arranged in parallel with the atomization chamber. Through the above arrangement, it is easier to ventilate the liquid storage chamber, thereby ensuring sufficient liquid supply of the heating element and avoiding scorching.

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 structural diagram of an embodiment of an electronic atomization device provided by the present application;

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

Fig. 3 is a schematic cross-sectional view of the atomizer provided in Fig. 2 along the direction A-A;

Figure 4 is an enlarged view of the local structure of Figure 3;

Fig. 5 is a schematic cross-sectional view of the atomizer provided in Fig. 2 along the B-B direction;

Fig. 6 is a schematic structural diagram of the heating component in the atomizer provided in Fig. 2;

Fig. 7 is a schematic structural view of the fixing member in the heating assembly provided in Fig. 6;

Fig. 8 is a schematic diagram of the assembly structure of the fixing part and the liquid guiding part in the heating component provided in Fig. 6;

Fig. 9 is a schematic diagram of the assembly structure of the fixing part, the liquid guiding part and the heating element in the heating assembly provided in Fig. 6;

Fig. 10 is a schematic diagram of the assembly structure of the pressing part, the supporting part and the conductive sheet in the heating assembly provided in Fig. 6 .

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.

In the following description, for purposes of illustration rather than limitation, specific details, such as specific system architectures, interfaces, and techniques, are set forth in order to provide a thorough understanding of the present 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 said 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. The terms "comprising" and "having" and any variations thereof in the embodiments of the present application are intended to cover 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 components inherent in those processes, methods, products, or devices.

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 appearances of a 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.

The application will be described in detail below in conjunction with the accompanying drawings and embodiments.

Please refer to Fig. 1, Fig. 1 is a schematic structural diagram of an embodiment of an electronic atomization device provided by the present application. In this embodiment, an electronic atomization device 100 is provided. The electronic atomization device 100 can be used for atomization of aerosol-generating substrates. The electronic atomization device 100 includes an atomizer 1 and a host 2 electrically connected to each other.

Wherein, the atomizer 1 is used for storing the aerosol-generating substrate and atomizing the aerosol-generating substrate to form an aerosol that can be inhaled by a user. The atomizer 1 can be used in different fields, such as medical treatment, beauty care, leisure smoking, etc.; in a specific embodiment, the atomizer 1 can be used in an electronic aerosolization device for atomizing an aerosol-generating substrate And generate aerosol, for sucking by the smoker, the following embodiments are all taking leisure smoking as an example; of course, in other embodiments, the atomizer 1 can also be applied to hairspray equipment, to atomize for Hairspray for hair styling; or equipment for the treatment of upper and lower respiratory diseases to atomize medical drugs.

For the specific structure and function of the atomizer 1 , please refer to the specific structure and function of the atomizer 1 involved in any of the following embodiments, and can achieve the same or similar technical effects, and will not be repeated here.

The host 2 includes a battery (not shown) and a controller (not shown). The battery is used to provide electric energy for the operation of the atomizer 1 so that the atomizer 1 can atomize the aerosol generating substrate to form an aerosol; the controller is used to control the operation of the atomizer 1 . The host 2 also includes other components such as a battery holder and an airflow sensor.

The atomizer 1 and the host 2 can be integrated or detachably connected, and can be designed according to specific needs.

Please refer to Figure 2-Figure 5, Figure 2 is a schematic structural view of the atomizer provided by an embodiment of the present application, Figure 3 is a schematic cross-sectional view of the atomizer provided in Figure 2 along the A-A direction, and Figure 4 is a partial structure of Figure 3 As an enlarged view, Fig. 5 is a schematic cross-sectional view of the atomizer provided in Fig. 2 along the B-B direction.

The atomizer 1 includes a housing 11 , a heating component 12 , a bracket 13 and a seal 14 . One end of the casing 11 has a suction port 111 . The bracket 13 and the seal 14 are arranged in the casing 11 , the seal 14 is arranged around the bracket 13 , and the seal 14 is located at an end of the bracket 13 away from the suction port 111 . The casing 11 , the bracket 13 and the sealing member 14 cooperate to form a liquid storage chamber 110 , that is, the top surface of the sealing member 14 serves as the bottom surface of the liquid storage chamber 110 , and the liquid storage chamber 110 is used to store the aerosol generating substrate. The sealing member 14 abuts against the side wall of the casing 11 to realize the sealing of the liquid storage chamber 110 .

The bracket 13 has a receiving portion 131 , and the receiving portion 131 includes an annular side wall and a top wall surrounding the receiving cavity 1310 . The receiving cavity 1310 has an insertion port (not shown) at the end away from the suction port 111 , and the heating element 12 is inserted into the receiving cavity 1310 through the insertion port;

The heating component 12 includes a heating body 121, and the heating body 121 is used for atomizing the aerosol generating substrate. A lower liquid opening 1312 is provided on the annular side wall of the receiving portion 131, and the lower liquid opening 1312 communicates the liquid storage chamber 110 with the receiving chamber 1310, that is, the aerosol-generating substrate in the liquid storage chamber 110 flows through the lower liquid opening 1312. To the heating element 121 of the heating element 12 , the heating element 121 is in fluid communication with the liquid storage chamber 110 through the lower liquid opening 1312 . It can be understood that the heating element 12 blocks the lower liquid opening 1312 , and the aerosol-generating substrate can only flow from the lower liquid opening 1312 to the heating element 12 , so as to avoid leakage of the aerosol-generating substrate at the lower liquid opening 1312 . Wherein, the heating element 12 blocks the lower liquid opening 1312 refers to that along the axial direction perpendicular to the atomizer 1, the projection of the lower liquid opening 1312 is located within the projection of the heating element 12, rather than the heating element 121 and the lower liquid opening 1312. touch. Specifically, the heating element 121 of the heating component 12 blocks the lower liquid opening 1312 .

A lower liquid gap 1313 is formed between the inner surface of the receiving portion 131 and the heating element 121 at intervals, and the lower liquid gap 1313 communicates with the lower liquid opening 1312 . That is, a lower liquid gap 1313 is formed between the inner surface of the annular sidewall of the receiving portion 131 provided with the lower liquid opening 1312 and the heating element 121 at intervals. Specifically, the portion of the heating element 121 on the side of the lower liquid opening 1312 away from the suction port 111 is spaced apart from the portion of the lower liquid opening 1312 away from the suction port 111 to form a lower liquid gap 1313 .

Referring to FIG. 4 , in this embodiment, the heating component 12 further includes a liquid guiding member 122, which is arranged between the annular side wall of the housing portion 131 and the heating element 121, and the liquid guiding element 122 is bonded to the heating element 121. Setting; the inner surface of the receiving part 131 and the liquid guide 122 are spaced to form a lower liquid gap 1313, that is, the inner surface of the annular side wall of the receiving part 131 provided with the lower liquid opening 1312 and the liquid guide 122 are arranged at intervals A lower liquid gap 1313 is formed. Wherein, the liquid-guiding element 122 has a porous structure, and by disposing the liquid-guiding element 122 on one side of the heating element 121, the aerosol-generating substrate is uniformly distributed on the entire surface of the heating element 121 to achieve a better atomization effect. The liquid guide 122 can be cotton, porous ceramics, etc., and it only needs to be able to guide the aerosol-generating substrate flowing in from the lower liquid opening 1312 to the surface of the heating element 121 evenly.

In this embodiment, the heating element 121 has a sheet-like structure; the heating element 121 can be a porous matrix or a dense matrix, which can be designed according to requirements. The heating element 121 has an atomizing surface, and the atomizing surface is substantially parallel to the axis of the atomizer 1 . It can be understood that the atomization surface of the heating element 121 is substantially parallel to the axis of the atomizer 1, which means that the angle formed between the atomization surface of the heating element 121 and the axis of the atomizer 1 is between 0° and 10°. It can hardly be seen that the extension line of the atomization surface of the heating element 121 intersects the axis of the atomizer 1 .

When the heating body 121 is a dense matrix, the heating body 121 has an array of through holes. The atomization surface of the heating element 121 includes an array area and a blank area surrounding the array area, and the array area is the atomization area.

The width of the lower liquid gap 1313 is 0.2 mm˜1 mm, wherein the width of the lower liquid gap 1313 refers to the distance between the inner surface of the receiving portion 131 and the liquid guide 122 . The design of the lower liquid gap 1313 is to avoid the accumulation of air bubbles beside the heating element 121 during liquid injection.

Continuing to refer to FIG. 4 , a lower liquid microgroove 1314 is provided on the annular side wall of the receiving portion 131 , and the lower liquid microgroove 1314 communicates with the lower liquid opening 1312 . Specifically, a lower liquid microgroove 1314 is provided on the annular side wall of the lower liquid opening 1312 in the receiving portion 131, that is, a lower liquid microgroove 1314 is provided on the side wall of the lower liquid opening 1312 away from the suction port 111, and the lower The liquid microgroove 1314 is a through groove through the side wall of the lower liquid opening 1312 , the lower liquid microgroove 1314 communicates with the lower liquid gap 1313 , and the opening of the lower liquid microgroove 1314 faces the suction port 111 . By setting the lower liquid micro-groove 1314, the aerosol-generating substrate can be quickly guided to the lower liquid gap 1313 through capillary force, so as to replenish liquid for the heating element 121 in the process of heating and atomizing, and prevent dry burning. The lower liquid microgroove 1314 has a width ranging from 0.2 mm to 1 mm, and a depth ranging from 0.5 mm to 2 mm. The lower liquid microgroove 1314 can be used for liquid storage. Optionally, a plurality of lower liquid microgrooves 1314 are provided on the annular side wall of the receiving portion 131 provided with the lower liquid opening 1312 , and the plurality of lower liquid microgrooves 1314 are arranged at intervals along a direction parallel to the atomizing surface of the heating element 121 .

The heating component 12 is arranged at the bottom of the liquid storage chamber 110. Specifically, the central axis of the heating component 12 is adjacent to the bottom surface of the liquid storage chamber 110. When the aerosol-generating substrate in the liquid storage chamber 110 is less, the aerosol-generating substrate passes through gravity. It can also be supplied to the heating element 12 to avoid wasting the aerosol-generating substrate.

Please refer to Figure 6-Figure 10, Figure 6 is a schematic structural diagram of the heating component in the atomizer provided in Figure 2, Figure 7 is a schematic structural diagram of the fixing part in the heating component provided in Figure 6, and Figure 8 is a schematic structural diagram of the heating component in Figure 6 Fig. 9 is a schematic diagram of the assembly structure of the fixing part and the liquid guiding part in the heat generating component provided in Fig. 6. Fig. 10 is a pressing part, Schematic diagram of the assembly structure of the support and the conductive sheet.

In this embodiment, the heating component 12 is a wedge-shaped structure, and correspondingly, the accommodation cavity 1310 of the accommodation portion 131 is a wedge-shaped arrangement matched therewith. By setting the heating component 12 as a wedge-shaped structure, assembly is facilitated and assembly efficiency can be effectively improved.

Referring to FIG. 3 , FIG. 6 - FIG. 10 , the heating assembly 12 further includes a fixing part 123 , a pressing part 124 , a supporting part 125 and a conductive sheet 126 .

The fixing part 123 and the pressing part 124 together constitute a package, which is used to package the heating element 121 . The support 125 includes side walls and bottom walls that are connected to each other. The package is arranged in the space enclosed by the side walls and the bottom wall of the support 125. The heating element 121 is arranged in the package and cooperates with the package to form an atomization Cavity 101.

Specifically, the fixing member 123 has an installation groove 1230 , the heating element 121 is disposed in the installation groove 1230 , and the atomization surface of the heating element 121 is away from the bottom wall of the installation groove 1230 . The pressing piece 124 is arranged on the side of the heating element 121 away from the bottom wall of the installation groove 1230 , the pressing piece 124 abuts against the side wall of the installation groove 1230 , and the pressing piece 124 is spaced apart from the atomizing surface of the heating element 121 . The pressing member 124 cooperates with the atomizing surface of the heating element 121 and the side wall of the installation groove 1230 to form the atomizing chamber 101 . That is to say, the heating component 12 forms the atomizing chamber 101 . The liquid guiding element 122 is disposed on a side of the heating element 121 away from the pressing element 124 , that is, the liquid guiding element 122 is disposed on a side of the heating element 121 close to the lower liquid opening 1312 . Wherein, the fixing member 123 is attached to the inner surface of the receiving portion 131 . Optionally, the material of the fixing part 123 and the pressing part 124 is silicone or fluororubber, and the sealing is realized while fixing the heating element 121 .

The support member 125 has a wedge-shaped structure, so that the heating component 12 has a wedge-shaped structure. The side wall of the supporting member 125 is arranged on the side of the pressing member 124 away from the heating element 121 , and the bottom wall of the supporting member 125 is arranged on the end of the fixing member 123 and the pressing member 124 away from the suction port 111 . The side wall of the support member 125 is away from the surface of the pressing member 124 and the bottom wall of the support member 125 forms an included angle of 15°-30°, so that the support member 125 forms a wedge-shaped structure; the side wall of the support member 125 is close to the pressing member 124 The surface of is substantially perpendicular to the bottom wall of the support member 125 . That is to say, the side wall of the support 125 away from the surface of the package forms an included angle of 15-30 degrees with the bottom wall of the support 125, so that the support 125 forms a wedge-shaped structure; the side wall of the support 125 is close to the package The surface of is substantially perpendicular to the bottom wall of the support member 125 .

The conductive sheet 126 is interposed between the pressing member 124 and the heating element 121 . One end of the conductive sheet 126 is electrically connected to the heating element 121 , and the other end is used to connect to the host 2 .

In this embodiment, a fixing post 1251 is provided on the side wall of the support member 125, a first positioning hole 1231 is provided on the side wall of the installation groove 1230, a second positioning hole 1241 is provided on the pressing member 124, and a fixing post 1251 is provided on the side wall. Pass through the first positioning hole 1231 and the second positioning hole 1241 to fix the fixing part 123 and the pressing part 124 . Wherein, the conductive sheet 126 is provided with a positioning groove 1261 corresponding to the fixing column 1251, and the fixing column 1251 passes through the positioning groove 1261; the conductive sheet 126 includes a first part (not shown) and a second part (not shown) connected to each other, The junction of the first part and the second part abuts against the bottom wall of the support member 125 to limit the position of the conductive sheet 126 (as shown in FIG. 10 ).

Through the above settings, the fixing part 123, the liquid guiding part 122, the heating element 121, the pressing part 124, the supporting part 125, and the conductive sheet 126 are formed into an integral structure, that is, the heating element 12 is an integral structure, which is convenient for assembly and can effectively improve the assembly efficiency. Efficiency and consistency of assembly.

Wherein, the bottom wall of the installation groove 1230 is provided with a liquid inlet hole 1232, so that the aerosol generating substrate enters the heating element 121 from the outside of the heating element 12; that is, the aerosol generating substrate in the liquid storage chamber 110 passes through the lower liquid opening 1312 , the liquid inlet hole 1232 enters the liquid guide 122 , and the liquid guide 122 guides the aerosol generating substrate to the heating element 121 . Further, a sub-installation groove (not shown) is provided on the bottom wall of the installation groove 1230 for installing the liquid guide 122 . Further, the bottom wall of the installation groove 1230 can also be provided with an auxiliary liquid inlet hole 1233, and the auxiliary liquid inlet hole 1233 communicates with the liquid inlet hole 1232; optionally, the bottom wall of the installation groove 1230 is provided with a plurality of auxiliary liquid inlet holes 1233 , a plurality of auxiliary liquid inlet holes 1233 are arranged at intervals along the circumference of the liquid inlet hole 1232 . The auxiliary liquid inlet hole 1233 may be spaced apart from the liquid inlet hole 1232, or may communicate with each other.

When the liquid guiding element 122 is assembled in the installation groove 1230, the liquid guiding element 122 covers the liquid inlet hole 1232, exposing the auxiliary liquid inlet hole 1233 (as shown in FIG. 8 ). When the heating element 121 is assembled in the installation groove 1230, the heating element 121 covers the liquid guide 122 and blocks the auxiliary liquid inlet hole 1233; the gap between the edge of the heating element 121 and the side wall of the installation groove 1230 is very small, which can make the It is enough for the heating element 121 to be assembled in the installation groove 1230 , that is, the size of the installation groove 1230 is matched with the heating element 121 (as shown in FIG. 9 ). By setting the auxiliary liquid inlet hole 1233 on the bottom wall of the installation groove 1230, it is beneficial to increase the liquid supply speed and discharge air bubbles, and reduce the influence of air bubbles on the liquid supply speed.

The bottom wall of the installation groove 1230 is also provided with an annular protrusion 1234, which surrounds the liquid inlet hole 1232 and the auxiliary liquid inlet hole 1233, and the annular protrusion 1234 is used to abut against the heating element 121 to achieve sealing (Fig. 9 combined with Figure 7). Optionally, the annular protrusion 1234 is integrally formed with the fixing member 123, which is beneficial to reduce the number of components and simplify the assembly process.

The assembly process of the heating element 12 is as follows: the liquid guiding element 122 and the heating element 121 are sequentially assembled in the installation groove 1230 of the fixing element 123; The fixing column 1251 is passed through the second positioning hole 1241 and the positioning groove 1261; the pressing piece 124 equipped with the conductive sheet 126 is abutted against the side wall of the installation groove 1230 equipped with the liquid guide 122 and the heating element 121, and at the same time The fixing column 1251 on the supporting member 125 is passed through the first positioning hole 1231 on the side wall of the installation groove 1230, so that the heating component 12 forms an integral structure.

Referring to FIG. 3 , the bracket 13 also has an air outlet portion 132 connected to the receiving portion 131 . The air outlet portion 132 includes an annular side wall surrounding the air outlet channel 102 ; that is, the bracket 13 forms the air outlet channel 102 . The top wall of the receiving portion 131 is provided with an air outlet hole 1311 , and the air outlet hole 1311 communicates the receiving cavity 1310 with the air outlet channel 102 . The receiving portion 131 has an insertion port (not shown) at an end away from the air outlet channel 102 , through which the heating element 12 is inserted into the receiving cavity 1310 and fixed in the receiving cavity 1310 by interference fit.

The atomizer 1 also includes a bottom cover 15, which is arranged at the end of the housing 11 to seal it. The inner surface of the side wall of the bottom cover 15 abuts against the outer surface of the receiving portion 131 of the bracket 13; when the heating component 12 is assembled in the receiving portion 131, the bottom wall of the support member 125 and the bottom wall of the bottom cover 15 are spaced apart, that is, The heating component 12 is fully clamped in the receiving cavity 1310 through interference fit; the bottom cover 15 , the annular side wall of the receiving portion 131 and the support member 125 cooperate to form the air intake cavity 103 . It can be understood that the air intake cavity 103 communicates with the receiving cavity 1310 of the receiving portion 131 . The bottom wall of the bottom cover 15 is provided with an air inlet 151 (as shown in FIG. 5 ), and the air inlet 151 communicates the outside air with the air inlet chamber 103 . The bottom cover 15 and the air outlet portion 132 are respectively located on opposite sides of the receiving portion 131 . In other embodiments, the bottom cover 15 may also include a support column abutting against the bottom wall of the support member 125 to support the heating component 12 .

Referring to FIG. 3 , FIG. 7 and FIG. 10 , the bottom wall of the support member 125 is provided with a first opening 1252 ; the annular sidewall of the mounting groove 1230 is provided with a second opening 1235 and a third opening 1236 on two opposite sides. Wherein, the first opening 1252 communicates with the second opening 1235, and the first opening 1252 and the second opening 1235 of the air inlet chamber 103 communicate with the atomization chamber 101; the third opening 1236 communicates the atomization chamber 101 with the air outlet hole 1311, namely , the aerosol in the atomization chamber 101 enters the air outlet channel 102 through the third opening 1236 and the air outlet hole 1311 . That is to say, outside air enters the atomizing chamber 101 through the air inlet chamber 103, the first opening 1252, and the second opening 1235, and carries the aerosol in the atomizing chamber 101 into the air outlet channel 102 through the third opening 1236 and the air outlet hole 1311, Ultimately sucked by the user. In one embodiment, the cross-sections of the first opening 1252 , the second opening 1235 , the atomization chamber 101 , the third opening 1236 , and the air outlet 1311 perpendicular to the axis of the atomizer 1 are all the same, for example, they are all rectangular.

Referring to Fig. 3, the first opening 1252, the second opening 1235, the atomization chamber 101, the third opening 1236, the air outlet hole 1311 and the air outlet channel 102 are connected in a straight line, and there is no turning and no obstruction between the air outlet channel 102 and the atomization chamber 101 The contact between the aerosol and the wall surface is reduced, thereby reducing the formation of condensate, and at the same time, the temperature at which the aerosol reaches the user's mouth is increased, which is conducive to maintaining a better taste and improving the user's experience. It can be understood that there are no bends and shields between the air outlet channel 102 and the atomization chamber 101 , which facilitates the discharge of the aerosol in the atomization chamber 101 , thereby reducing the loss of the aerosol.

The atomization chamber 101 is connected to the air inlet chamber 103 in a straight line, so that there is no turning between the air inlet chamber 103 and the atomization chamber 101, and the outside air is blown directly over the atomization surface of the heating element 121, which is beneficial to improve the mixing uniformity of the aerosol and air , so that the airflow is smooth and even, maintaining a good taste.

It can be understood that with the consumption of the aerosol-generating substrate in the liquid storage chamber 110, the negative pressure in the liquid storage chamber 110 gradually increases. The generated substrate cannot be supplied to the heating element 12, and some air needs to enter the liquid storage chamber 110 for ventilation. Based on this, the present application also provides a ventilation method.

Referring to FIG. 4 , a ventilation needle hole 1315 is provided on the annular side wall of the receiving portion 131 , for example, the ventilation needle hole 1315 is located on a side of the heating element 12 away from the lower liquid opening 1312 . The ventilation needle hole 1315 communicates with the inner space of the receiving portion 131 and the liquid storage chamber 110 , that is, the ventilation needle hole 1315 communicates with the storage chamber 1310 and the liquid storage chamber 110 . The outer surface of the heating element 12 cooperates with the inner surface of the receiving portion 131 to form a communication channel 104 , the first end of the communication channel 104 communicates with the ventilation pinhole 1315 , and the second end of the communication channel 104 communicates with the outside air. That is to say, the ventilation of the liquid storage chamber 110 is realized through the communication channel 104 and the ventilation pinhole 1315 .

The ventilation needle hole 1315 is not higher than the bottom surface of the liquid storage chamber 110 , that is, the top surface of the sealing member 14 . When the aerosol-generating substrate in the liquid storage chamber 110 is almost consumed, there is also an aerosol-generating substrate in the ventilating pinhole 1315, so as to realize the purpose of maintaining ventilation through the surface tension of the aerosol-generating substrate in the ventilating pinhole 1315 connectivity threshold. When there is no aerosol-generating substrate in the ventilation pinhole 1315, the liquid storage chamber 110 communicates with the outside air through the ventilation pinhole 1315 and the communication channel 104, resulting in insufficient negative pressure in the liquid storage chamber 110 and leakage.

Further, a first groove 1316 is formed on the outer surface of the annular sidewall of the receiving portion 131 close to the bottom surface of the liquid storage chamber 110 , and the ventilation needle hole 1315 is disposed on the bottom wall of the first groove 1316 . The lowest point C of the first groove 1316 is lower than the bottom surface of the liquid storage chamber 110, so that the aerosol generating substrate in the liquid storage chamber 110 can still flow into the first groove 1316; the highest point D of the first groove 1316 It is higher than the bottom surface of the liquid storage chamber 110 , so that the aerosol-generating substrate in the liquid storage chamber 110 can flow into the first groove 1316 . Optionally, the bottom surface of the liquid storage chamber 110 is a slope, and the bottom surface of the liquid storage chamber 110 on the side close to the first groove 1316 is lower than the bottom surface of the liquid storage chamber 110 on the side away from the first groove 1316, so as to facilitate liquid storage The aerosol-generating substrate in the cavity 110 flows into the first groove 1316 as much as possible when there are few aerosol-generating substrates. By setting the first groove 1316, there is always an aerosol-generating substrate in the ventilation pinhole 1315.

In this embodiment, the outer surface of the heating component 12 is provided with a second groove (not shown), and the second groove cooperates with the inner surface of the receiving part 131 to form the communication channel 104; that is, the receiving part 131 has a ventilation needle The inner surface of the side wall of the hole 1315 cooperates with the second groove to form the communication channel 104 . Specifically, the side wall of the support member 125 of the heating component 12 is provided with a second groove on the surface away from the pressing member 124, that is, the surface of the side wall of the support member 125 away from the pressing member 124 fits with the inner surface of the receiving portion 131 A communication channel 104 is formed. In other embodiments, a second groove may also be provided on the inner surface of the receiving portion 131 to cooperate with the outer surface of the support member 125 of the heating element 12 to form the communication channel 104 .

The communication passage 104 is arranged parallel to the atomization chamber 101 , and the communication passage 104 communicates with the outside air through the air inlet chamber 103 . When inhaling, the negative pressure in the air outlet channel 102 and the atomization chamber 101 is relatively large, and the relatively large negative pressure will suck the aerosol-generating substrate out from the liquid storage chamber 110 through the micropores on the heating element 121. At this time, the liquid storage The negative pressure in the chamber 110 increases, and the outside air enters the liquid storage chamber 110 through the air intake chamber 103 , the communication channel 104 and the ventilation pinhole 1315 to complete the ventilation. That is to say, in the ventilation method provided by this application, the communication channel 104 communicates with the air inlet chamber 103 instead of the air outlet channel 102 or the atomization chamber 101, and the negative pressure of the air inlet chamber 103 is higher than that of the atomization chamber 101 and the air outlet. The small size of the channel 102 makes it easier to ventilate.

The liquid storage chamber 110 is ventilated through the communication channel 104 and the ventilation pinhole 1315 provided above, which is easier to ventilate than the prior art, thereby ensuring sufficient supply of the aerosol-generating substrate of the heating element 121 of the heating element 12, avoiding Burning and dry burning caused by insufficient liquid supply of heating element 121.

Continuing to refer to FIG. 4 , the end surface of the heating element 12 close to the top wall of the housing portion 131 is spaced apart from the inner surface of the top wall of the housing portion 131 to form a gap 105 with capillary force, and the atomizing chamber 101 passes through the gap 105 and the ventilation pinhole 1315 connected.

Specifically, a third groove (not shown) is provided on the outer surface of the heating component 12 , and the third groove cooperates with the inner surface of the receiving portion 131 to form the liquid guiding channel 106 . The first end of the liquid guiding channel 106 communicates with the gap 105, and the second end of the liquid guiding channel 106 communicates with the ventilation pinhole 1315; that is, the atomization chamber 101 communicates with the ventilation pinhole 1315 through the gap 105 and the liquid guiding channel 106 . In this embodiment, the side wall of the support member 125 of the heating component 12 is provided with a third groove on the surface away from the pressing member 124, that is, the surface of the side wall of the support member 125 away from the pressing member 124 is in contact with the receiving portion 131. The inner surfaces cooperate to form the fluid guiding channel 106 .

When inhaled, the aerosol condensation or aerosol-generating substrate leaks from the heating element 121 to the atomizing chamber, which can be guided to the liquid guide channel 106 through the capillary force of the gap 105, and then flows to the exchange channel 106 through the liquid guide channel 106. At the gas needle hole 1315, this part of the leaked liquid can be sucked back to the liquid storage chamber 110 when ventilating, so as to avoid the suction of the leaked liquid.

The cross-sectional area of the liquid guiding channel 106 is smaller than that of the communicating channel 104 . Optionally, the depth and/or width of the third groove forming the liquid guiding channel 106 is smaller than the depth and/or width of the second groove forming the communication channel 104 . Through the above arrangement, the liquid leakage in the liquid guide channel 106 is prevented from flowing out from the communication channel 104 .

It can be understood that the ventilation method provided by the present application through the ventilation pinhole 1315 and the communication channel 104 can not only be applied to the embodiment where the atomization surface of the heating element 121 is parallel to the axis of the atomizer 1, but also can be applied to Embodiments in which the atomization surface of the heating element faces downward or upward. The method provided by this application to suck the leaked liquid back into the liquid storage chamber 110 through the gap 105, the liquid guide channel 106 and the ventilation pinhole 1315 can not only be applied to the atomization surface of the heating element 121 and the axis of the atomizer 1 In the parallel embodiment, it can also be applied to the embodiment in which the atomization surface of the heating element faces downward or upward.

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

Claims

A nebulizer, comprising:

case;

The bracket is arranged in the housing; the bracket cooperates with the housing to form a liquid storage cavity; the bracket has a receiving part; the side wall of the receiving part is provided with a ventilating pinhole, and the ventilating pinhole communicating with the inner space of the receiving part and the liquid storage cavity;

The heating component is arranged in the storage part; the heating component forms an atomization cavity, and the atomization cavity communicates with the outside air; the outer surface of the heating component cooperates with the inner surface of the storage part to form a communication channel, so The first end of the communication channel communicates with the ventilation pinhole, and the second end of the communication channel communicates with the outside air; the communication channel is arranged in parallel with the atomization chamber.
The atomizer according to claim 1, wherein the ventilation pinhole is not higher than the bottom surface of the liquid storage chamber.
The atomizer according to claim 2, wherein a first groove is provided on the outer surface of the receiving portion close to the bottom surface of the liquid storage chamber, and the ventilation pinhole is provided in the first groove bottom wall.
The atomizer according to claim 1, wherein the outer surface of the heating component is provided with a second groove, and the inner surface of the receiving part cooperates with the second groove to form the communication channel.
The atomizer according to claim 1, wherein, the end surface of the heating element close to the top wall of the accommodating part is spaced apart from the inner surface of the top wall of the accommodating part to form a gap with capillary force, the The atomization chamber communicates with the ventilation pinhole through the gap.
The atomizer according to claim 5, wherein the outer surface of the heating component is provided with a third groove, and the third groove cooperates with the inner surface of the accommodating part to form a liquid guide channel; the guide The first end of the liquid channel communicates with the gap, and the second end of the liquid guiding channel communicates with the ventilation pinhole.
The atomizer according to claim 6, wherein the cross-sectional area of the liquid guiding channel is smaller than the cross-sectional area of the communicating channel.
The atomizer according to claim 6, wherein the heating component includes a heating element, a package, and a support; the support includes side walls and a bottom wall connected to each other, and the package is arranged on the support In the space enclosed by the side wall and the bottom wall of the component, the heating element is arranged in the package and cooperates with the package to form an atomization chamber; the support is a wedge-shaped structure; the side of the support The surface of the wall away from the pressing part cooperates with the inner surface of the accommodating part to form the communication channel and the liquid guiding channel.
The atomizer according to claim 8, wherein the package includes a fixing part and a pressing part; the fixing part has a mounting groove, and the heating element is arranged in the installing groove; the pressing part is provided with On the side of the heating element away from the bottom wall of the installation groove, the pressing member abuts against the side wall of the installation groove; the pressing member, the fixing member and the heating element cooperate to form a The atomization chamber; the side wall of the supporting member is arranged on the side of the pressing member away from the heating element, and the bottom wall of the supporting member is arranged at the end of the fixing member and the pressing member department.
The atomizer according to claim 8, wherein the side wall of the support member away from the surface of the package forms an included angle of 15°-30° with the bottom wall of the support member, so that the support The member forms a wedge-shaped structure; the surface of the side wall of the support member close to the package is substantially perpendicular to the bottom wall of the support member.
The atomizer according to claim 1, wherein the heating component comprises a heating element, and the atomizing surface of the heating element is substantially parallel to the axis of the atomizer.
The atomizer according to claim 1, wherein the heating component comprises a heating body, and the heating body is a sheet structure.
An electronic atomization device, including:

An atomizer for storing and atomizing an aerosol-generating substrate; the atomizer is the atomizer according to any one of claims 1-12;

The host is used to provide energy to the heating component and control the operation of the heating component.