WO2022241619A1

WO2022241619A1 - Atomizer and electronic atomization apparatus using said atomizer.

Info

Publication number: WO2022241619A1
Application number: PCT/CN2021/094161
Authority: WO
Inventors: 雷桂林; 曹润; 谢亚军; 罗智; 罗帅
Original assignee: 深圳麦克韦尔科技有限公司
Priority date: 2021-05-17
Filing date: 2021-05-17
Publication date: 2022-11-24

Abstract

An atomizer (1) and an electronic atomization apparatus using said atomizer. The atomizer (1) comprises: a housing (11), which has an liquid storage cavity (111), an installation cavity (112), and an air outlet channel (113); an installation base (12), which is at least partially accommodated within the installation cavity (112); and an atomization core (16), which is arranged within the installation base (12), the atomization core (16) being in communication with the liquid storage cavity (111), an atomization surface (166) of the atomization core (16) being arranged opposite and spaced away from the air outlet channel (113), and an atomization cavity (133) being formed between the atomization core (16) and the air outlet channel (113). A first air intake portion (124) and a second air intake portion (126) are arranged at two sides of the atomization cavity (133), and two air flows entering by means of the first air intake portion (124) and the second air intake portion (126) form an air flow above the atomization surface (166) that drives an aerosol to upwardly spiral along an inner wall of the air outlet channel (113), so as to cause the air flow carrying the aerosol to make abundant contact with the inner wall of the air outlet channel (113) to lengthen a path of transmission of the aerosol, causing more large droplets in the aerosol to attach to inner walls of the atomization cavity (133) and the air outlet channel (113), and consequently reducing the amount of large droplets at an outlet of the atomization cavity (133).

Description

An atomizer and an electronic atomization device thereof

technical field

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

Background technique

The electronic atomization device in the prior art is mainly composed of an atomizer and a power supply assembly. The atomizer generally includes a liquid storage chamber and an atomization component. The liquid storage cavity is used to store the nebulizable medium, and the nebulizer component is used to heat and atomize the nebulizable medium to form an aerosol that can be consumed by smokers. ;The power supply component is used to supply energy to the atomizer. Among them, the sweetness of the aerosol released by the nebulizer mainly depends on the content of large droplets in the aerosol. When it is necessary to reduce the sweetness of the aerosol to meet the needs of customers, it is necessary to reduce the content of large droplets in the aerosol, and the regulation technology of how to reduce the content of large droplets in the aerosol needs to be discovered urgently.

application content

The main technical problem to be solved in this application is to provide an atomizer and its electronic atomization device to solve the problem of how to reduce the high content of large droplets in the aerosol generated by the atomizer in the prior art.

In order to solve the above technical problems, the first technical solution adopted by this application is to provide an atomizer, which includes: a housing with a liquid storage cavity, an installation cavity and an air outlet channel; the installation seat, at least Part of it is accommodated in the installation cavity; the atomizing core is installed in the mounting seat, the atomizing core is connected to the liquid storage cavity, the atomizing surface of the atomizing core is opposite to the air outlet channel and is arranged at intervals, and a gap is formed between the atomizing core and the air outlet channel. Atomization chamber; wherein, both sides of the atomization chamber are provided with a first air inlet and a second air inlet, and the two airflows entering through the first air inlet and the second air inlet form a driving force above the atomization surface. The airflow in which the aerosol spirals up along the inner wall of the outlet channel.

Wherein, the atomization chamber includes a first cavity and a second cavity which communicate with each other, the first cavity is close to the air outlet channel, the second cavity is close to the atomization surface, and the port of the first cavity close to the air outlet channel forms a pointing air outlet channel The necking structure, the second cavity communicates with the air outlet channel through the first cavity.

Wherein, the inner wall surface of the first cavity is a concave curved surface or a plane.

Wherein, the side wall of the atomization chamber is integrally formed with the inner wall of the mounting seat.

Wherein, the side wall of the atomization chamber is integrally formed with the inner wall of the casing.

Wherein, the first air intake portion and the second air intake portion are arranged asymmetrically.

Wherein, the air intake direction of the first air intake portion and the air intake direction of the second air intake portion are parallel to each other and parallel to the atomizing surface.

Wherein, the air intake direction of the first air intake portion and the air intake direction of the second air intake portion are not parallel to each other.

Wherein, the first air inlet part includes a first air inlet hole, the second air inlet part includes a second air inlet hole, the first air inlet hole and the second air inlet hole are arranged on two opposite surfaces of the mounting base, and the second air inlet hole The inner wall surface of the first air inlet away from the air outlet channel and the inner wall surface of the second air inlet away from the air outlet channel are flush with the atomization surface.

Wherein, the positions of the first air inlet and the second air inlet on the mounting base are asymmetrically arranged.

Wherein, the positions of the first air inlet and the second air inlet in the central axis direction of the atomizer are arranged asymmetrically.

Wherein, the first air inlet and the second air inlet are arranged asymmetrically in a direction perpendicular to the central axis of the nebulizer.

Wherein, the sizes of the first air inlet hole and the second air inlet hole are set asymmetrically.

Wherein, the heights of the first air inlet and the second air inlet in the direction of the central axis of the nebulizer are inconsistent.

Wherein, the widths of the first air inlet and the second air inlet in a direction perpendicular to the central axis of the atomizer are inconsistent.

Wherein, the first air inlet and/or the second air inlet are arranged obliquely to the inner wall parallel to the central axis of the atomizer, and the inclination directions of the inner walls are consistent.

Wherein, the first air inlet and/or the second air inlet are arranged obliquely on the inner wall near the side of the air outlet channel; wherein, the distance between the end of the inner wall near the atomizing chamber and the plane where the atomizing surface is located is smaller than the inner wall away from The distance between one end of the atomization chamber and the plane where the atomization surface is located.

Wherein, the shape of the first air inlet and/or the second air inlet is rectangular, and the height of the side of the rectangle perpendicular to the atomizing surface is not greater than the width of the side of the rectangle parallel to the atomizing surface.

In order to solve the above technical problems, the second technical solution adopted by the present application is to provide an electronic atomization device, the electronic atomization device includes a power supply assembly and the above-mentioned atomizer, and the power supply assembly is used to supply power to the atomizer.

The beneficial effects of the present application are: different from the situation of the prior art, an atomizer and its electronic atomization device are provided, the atomizer includes: a housing, the housing has a liquid storage cavity, an installation cavity and an air outlet channel The mounting base is at least partially accommodated in the mounting cavity; the atomizing core is installed in the mounting base, the atomizing core communicates with the liquid storage cavity, the atomizing surface of the atomizing core is opposite to the air outlet channel and is arranged at intervals, and the atomizing core and the An atomization cavity is formed between the air outlet channels. In this application, a first air inlet and a second air inlet are provided on both sides of the atomization chamber, and the two airflows that enter through the first air inlet and the second air inlet form a spiral that drives the aerosol above the atomization surface. The rising airflow allows the airflow carrying the aerosol to fully contact the inner wall of the air outlet channel, so as to extend the transmission path of the aerosol and make more large droplets in the aerosol adhere to the inner wall of the atomization chamber and the air outlet channel. In turn, the content of large droplets at the outlet of the atomization chamber is reduced.

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 (a) is the state fitting schematic diagram of the airflow in the atomizer in the prior art;

Fig. 1 (b) is a schematic diagram of tracking of large droplets with a particle size of 10um in the atomization chamber of the prior art;

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

Fig. 3 is a schematic structural view of an embodiment of the atomizer provided by the present application;

Fig. 4 is a sectional view of an embodiment of the atomizer provided by the present application;

Fig. 5 is a cross-sectional view of another angle of the atomizer provided by the present application;

Fig. 6 is a schematic structural view of an embodiment of the housing in the atomizer provided by the present application;

Fig. 7 is a schematic structural view of an embodiment of the upper seat in the nebulizer provided by the present application;

Fig. 8 is a sectional view of another embodiment of the atomizer in the atomizer provided by the present application;

Figure 9(a) is a fitting schematic diagram of an embodiment of the airflow state in the atomization chamber and the air outlet channel in the atomizer provided by the present application;

Fig. 9(b) is a fitting schematic diagram of an embodiment of the aerosol state in the atomization chamber and the air outlet channel in the atomizer provided by the present application;

Fig. 9(c) is a diagram of the relationship between the passing rate of large droplets and the size of the first air inlet and/or the second air inlet in the atomizer provided in Fig. 9(b);

Figure 10(a) is a fitting schematic diagram of an embodiment of the airflow state in the atomization chamber and the air outlet channel in the atomizer provided by the present application;

Fig. 10(b) is a fitting schematic diagram of another embodiment of the state of the aerosol in the atomization chamber and the outlet channel of the nebulizer provided by the present application;

Fig. 10(c) is a diagram of the relationship between the passing rate of large droplets and the size of the first air inlet and/or the second air inlet in the atomizer provided in Fig. 10(b);

Fig. 11 is a graph showing the relationship between the passing rate of large liquid droplets and the size of the first air inlet and/or the second air inlet in another embodiment of the atomizer provided by the present application.

Detailed ways

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

The terms "first", "second", and "third" in this application are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, features defined as "first", "second", and "third" may explicitly or implicitly include at least one feature. 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 will also change 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 phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are independent or alternative embodiments mutually exclusive of other embodiments. It is understood explicitly and implicitly by those skilled in the art that the embodiments described herein can be combined with other embodiments.

Please refer to Fig. 1(a) to Fig. 1(b), Fig. 1(a) is a schematic diagram of the state fitting of the airflow in the atomizer in the prior art; Fig. 1(b) is a 10um particle size large droplet in the existing Schematic diagram of the tracking inside the atomization chamber of the technology. At present, the air intake of the atomizer is related to the counter air intake method. In the atomizer, it is easy to form a "stagnation zone" near the central area of the heating element and the inner wall of the atomization chamber, and part of the aerosol is difficult to be taken away. After overcoming the problem that the aerosol is difficult to be taken away, the passing rate of the large droplets in the aerosol is high, making it difficult to control the sweetness of the aerosol.

On the basis of the above-mentioned technical means, the applicant of the present application has continuously improved and optimized, and proposed the following embodiments:

Please refer to Figure 2 to Figure 5, Figure 2 is a schematic structural diagram of an embodiment of an electronic atomization device provided by this application; Figure 3 is a schematic structural diagram of an embodiment of an atomizer provided by this application; Figure 4 is a schematic structural diagram of an embodiment of an atomizer provided by this application A cross-sectional view of an embodiment of the atomizer; FIG. 5 is a cross-sectional view of another angle of the atomizer provided by the present application. The electronic atomization device 100 can be used for atomizing the substance to be atomized. The electronic atomization device 100 provided in this embodiment includes an atomizer 1 and a host 2 . The atomizer 1 and the main unit 2 are detachably connected. Wherein, the atomizer 1 specifically includes a housing 11 , a mounting base 12 and an atomizing core 16 . The host 2 is provided with a power supply assembly 21, the atomizer 1 is plugged into one port of the host 2, and connected to the power supply assembly 21 in the host 2, so as to supply power to the atomizing core 16 in the atomizer 1 through the power supply assembly 21 . When the atomizer 1 needs to be replaced, the atomizer 1 can be disassembled and a new atomizer 1 can be installed on the host 2, so that the host 2 can be reused.

In another optional embodiment, the provided electronic atomization device 100 includes a casing 11 , a mounting base 12 , an atomizing core 16 and a power supply assembly 21 . Wherein, the housing 11 , the mounting base 12 , the atomizing core 16 and the power supply assembly 21 are integrally arranged and cannot be detachably connected.

Of course, the electronic atomization device 100 also includes other components in the existing electronic atomization device 100, such as microphones, brackets, etc. The specific structures and functions of these components are the same or similar to those of the prior art. For details, please refer to the existing technology, which will not be repeated here.

The atomizer 1 includes a housing 11 , a mounting base 12 , an atomizing core 16 , a nozzle assembly 17 and an end cap 18 .

Please refer to FIG. 6 . FIG. 6 is a schematic structural view of an embodiment of the housing in the nebulizer provided by the present application. One end of the housing 11 is connected with the suction nozzle assembly 17, and the other end is connected with the end cover 18. Specifically, the end of the housing 11 where the end cover 18 is installed is plugged into the cavity formed at one end of the host 2 . The housing 11 has a liquid storage cavity 111 , an installation cavity 112 and an air outlet channel 113 . The liquid storage chamber 111 is disposed at the end of the housing 11 close to the nozzle assembly 17 , the installation chamber 112 is disposed at the end of the housing 11 close to the end cover 18 , and the liquid storage chamber 111 is adjacent to and communicated with the installation chamber 112 . The air outlet channel 113 is arranged in the housing 11 and connected to the end of the housing 11 connected to the suction nozzle assembly 17. The air outlet channel 113 extends along the liquid storage chamber 111 to the end close to the installation chamber 112, and the air outlet channel 113 is far away from the liquid storage chamber 111. One end extends to the installation cavity 112 and communicates with the installation cavity 112 . That is to say, the air outlet channel 113 communicates the suction nozzle assembly 17 with the installation cavity 112 . In an optional embodiment, the liquid storage chamber 111 is arranged around the air outlet channel 113 , and the central axis of the air outlet channel 113 is parallel to the central axis of the nebulizer 1 . In a preferred implementation, the central axis of the outlet channel 113 coincides with the central axis of the atomizer 1 . Wherein, the liquid storage cavity 111 is used for storing the substance to be atomized. The air outlet channel 113 is used to communicate with the installation cavity 112 and the suction nozzle assembly 17 .

Further referring to FIG. 7 , FIG. 7 is a schematic structural view of an embodiment of the upper seat in the nebulizer provided by the present application. The mounting base 12 is at least partially accommodated in the mounting cavity 112 . In a specific embodiment, the installation seat 12 is completely accommodated in the installation cavity 112 , and an air intake channel 149 is formed between the outer wall of the installation seat 12 and the inner wall of the installation cavity 112 . The ambient air is transported to the atomizing chamber 133 through the air intake channel 149 . One end of the mounting base 12 and the inner wall of the casing 11 enclose the liquid storage chamber 111 . One end of the mounting base 12 has an air outlet hole 132 and a lower liquid hole 131, the air outlet hole 132 and the lower liquid hole 131 are arranged at intervals, the air outlet hole 132 is arranged opposite to and communicated with the air outlet channel 113, and the air outlet hole 132 is located between the air outlet channel 113 and the atomizing core 16 The part in between cooperates with the atomizing core 16 to form an atomizing cavity 133 , and the first air inlet portion 124 and the second air inlet portion 126 are arranged on the side wall of the mounting base 12 that does not belong to the lower liquid hole 131 . In a specific embodiment, the mounting base 12 includes an upper base body 121 and a lower base body 141 fixedly connected with the upper base body 121 . Wherein, the upper seat body 121 is disposed close to the liquid storage chamber 111 , and the lower seat body 141 is disposed on a side of the upper seat body 121 away from the liquid storage chamber 111 . The upper base body 121 and the lower base body 141 cooperate to form an installation space for accommodating the atomizing core 16 .

The upper base body 121 includes an annular sidewall 122 and a top wall 130 connected to the annular sidewall 122 . The top wall 130 is provided with a lower liquid hole 131 and an air outlet hole 132 , and the lower liquid hole 131 and the air outlet hole 132 are arranged at intervals. In a specific embodiment, the partially annular side wall 122 and the outer wall of the air outlet hole 132 form a lower liquid hole 131 , one end of the lower liquid hole 131 communicates with the liquid storage chamber 111 , and the other end communicates with the installation space. One end of the air outlet hole 132 communicates with the air outlet channel 113 , and the other end communicates with the installation space. Wherein, the inner diameter of the air outlet channel 113 may not be smaller than the inner diameter of the air outlet hole 132 near the end of the air outlet channel 113 . In an optional embodiment, the inner diameter of the air outlet channel 113 is equal to the inner diameter of the end of the air outlet hole 132 forming the atomization cavity 133 and close to the air outlet channel 113 . The inner diameter of the portion of the air outlet hole 132 where the air outlet channel 113 is installed is larger than the inner diameter of the end of the air outlet hole 132 forming the atomization chamber 133 and close to the air outlet channel 113 . In an optional embodiment, the end of the air outlet channel 113 may closely abut against a side of the top wall 130 away from the annular side wall 122 . Wherein, a first sealing member 191 is provided between the air outlet channel 113 and the upper base body 121, the first sealing member 191 is used to seal the gap between the air outlet channel 113 and the air outlet hole 132, and is also used to seal the upper base body 121 and the housing 11 The gap between the inner walls prevents the substance to be atomized from the liquid storage chamber 111 from leaking from the gap formed by the cooperation between the air outlet channel 113 and the air outlet 132, and also prevents the substance to be atomized from leaking from the upper base 121 and the inner wall of the housing 11 The gap formed by the fit leaks out. Wherein, the material of the first sealing member 191 is silica gel.

In a specific embodiment, the atomization chamber 133 includes a first cavity 134 and a second cavity 135 , and the first cavity 134 and the second cavity 135 communicate with each other. The first cavity 134 is disposed close to the part of the air outlet 132 connected to the air outlet channel 113 , and the first cavity 134 communicates with the air outlet channel 113 , for example, one end of the air outlet channel 113 is inserted into the first cavity 134 . The second cavity 135 is disposed on a side of the first cavity 134 away from the air outlet channel 113 . The second cavity 135 is a columnar structure. That is to say, the inner diameter of the end of the second cavity 135 connected to the first cavity 134 is equal to the inner diameter of the end of the second cavity 135 away from the first cavity 134 . From the end of the first cavity 134 connected to the second cavity 135 to the end of the first cavity 134 away from the second cavity 135 , the cross section of the first cavity 134 gradually shrinks into a constricted structure. That is to say, the inner diameter of the end of the first cavity 134 connected to the second cavity 135 is greater than the inner diameter of the end of the first cavity 134 away from the second cavity 135 . The inner diameter of the end of the first cavity 134 away from the second cavity 135 is equal to the inner diameter of the air outlet channel 113 . In a specific embodiment, the inner wall of the first cavity 134 is a concave curved surface structure. In another specific embodiment, the inner wall of the first cavity 134 is a planar structure. The inner diameter of the end of the second cavity 135 connected to the first cavity 134 is equal to the inner diameter of the end of the second cavity 135 connected to the first cavity 134 . Wherein, the central axis of the air outlet hole 132 coincides with the central axis of the atomizer 1 .

In a specific embodiment, there are two lower liquid holes 131 and they are arranged symmetrically on both sides of the air outlet hole 132 , or asymmetrically arranged on both sides of the air outlet hole 132 . Specifically, the number of the lower liquid holes 131 and the shape of the lower liquid holes 131 can be set according to actual conditions.

The atomizing core 16 is accommodated in the installation space formed by the upper base body 121 and the lower base body 141. A lower liquid channel 136 is formed between the side wall of the atomizing core 16 and the inner wall of the installation space. The lower liquid hole 131 is connected, and the liquid-absorbing surface 167 of the atomizing core 16 is connected with the lower liquid channel 136, so that the substance to be atomized in the lower liquid channel 136 can be transferred to the atomizing surface of the atomizing core 16 through the atomizing surface 166 166, and then atomize the substrate to be atomized through the atomizing surface 166 to form an aerosol.

The atomizing core 16 only covers the air outlet hole 132 , so that the aerosol formed by atomizing the substrate to be atomized by the atomizing core 16 can be transmitted to the air outlet channel 113 through the air outlet hole 132 . The atomizing core 16 includes a porous base 161 and a heating element 162 . Wherein, the surface of the porous matrix 161 close to the air outlet channel 113 serves as the atomizing surface 166 , and the surface of the porous matrix 161 away from the air outlet channel 113 serves as the liquid absorption surface 167 . Wherein, the atomizing surface 166 is opposite to the air outlet channel 113 and arranged at intervals.

Wherein, the heating element 162 may be a heating film or a heating wire. Wherein, the material of the porous matrix 161 is porous ceramics.

In a specific embodiment, a second sealing member 192 is provided at the connection between the atomizing core 16 and the upper base 121 , and the second sealing member 192 is used to seal the gap formed between the atomizing core 16 and the upper base 121 . Wherein, the material of the second sealing member 192 is silica gel.

A first air intake portion 124 and a second air intake portion 126 are disposed on the mounting base 12 . The first air intake portion 124 and the second air intake portion 126 are used to transmit the gas outside the mounting base 12 to the atomization chamber 133 to adjust the air flow transmission mode of the aerosol delivered to the air outlet channel 113 . Specifically, the gas outside the mounting base 12 enters the atomizing chamber 133 through the first air inlet 124 and the second air inlet 126 to form a spiraling airflow, and then carries the aerosol in the atomizing chamber 133 during the spiral upward process. In the middle, it can fully contact with the inner wall of the atomization chamber 133 and the air outlet channel 113, so as to prolong the transmission path of the aerosol, so that more large droplets in the aerosol are attached to the inner wall of the atomization chamber 133 and the air outlet channel 113, Furthermore, the content of large liquid droplets at the outlet of the atomization chamber 133 is reduced.

Specifically, the first air intake portion 124 and the second air intake portion 126 are disposed on the upper base body 121 . Specifically, the first air intake portion 124 and the second air intake portion 126 are disposed on the annular side wall 122 of the upper base body 121 that does not belong to the lower liquid hole 131 . The first air inlet 124 and the second air inlet 126 are arranged asymmetrically; the gas enters the atomization chamber 133 from the first air inlet 124 and the second air inlet 126 to form two airflows, and the two airflows flow in the atomization chamber 133 forms a spirally rising airflow, so that the aerosol carried by the airflow fully contacts the inner wall of the air outlet channel 113 .

In an optional embodiment, the air intake direction of the first air intake portion 124 and the air intake direction of the second air intake portion 126 are parallel to each other and parallel to the atomization surface 166 of the atomization core 16 . That is to say, the air intake direction of the first air intake portion 124 can be set opposite to the air intake direction of the second air intake portion 126 , so that the intake air flow of the first air intake portion 124 is different from that of the second air intake portion 126 . There is a deviation in the direction of the intake air flow, which is beneficial for the air flow to form a spiral air flow in the atomizing chamber 133 . In another optional embodiment, the air intake direction of the first air intake portion 124 and the air intake direction of the second air intake portion 126 may not be parallel to each other.

In a specific embodiment, the first air inlet 124 includes a first air inlet 125, the second air inlet 126 includes a second air inlet 127, and the first air inlet 125 and the second air inlet 127 are arranged on On the two opposite surfaces of the mounting base 12, the inner wall surface of the first air inlet 125 away from the air outlet channel 113 and the inner wall surface of the second air inlet 127 away from the air outlet channel 113 and the atomization of the atomizing core 16 Face 166 is flush.

Wherein, the first air inlet 125 and the second air inlet 127 are arranged asymmetrically. Specifically, the first air inlet 125 and the second air inlet 127 are arranged non-axisymmetrically.

In an optional embodiment, the positions of the first air inlet 125 and the second air inlet 127 on the mounting base 12 are arranged asymmetrically. In a specific embodiment, the first air inlet 125 and the second air inlet 127 are arranged asymmetrically in the direction of the central axis of the atomizer 1 . In another specific embodiment, please refer to FIG. 8 , which is a cross-sectional view of another embodiment of the atomizer among the atomizers provided by the present application. The positions of the first air inlet 125 and the second air inlet 127 are asymmetrical in a direction perpendicular to the central axis of the atomizer 1 .

In another optional embodiment, the sizes of the first air inlet 125 and the second air inlet 127 are set asymmetrically. In a specific embodiment, the heights of the first air inlet 125 and the second air inlet 127 in the direction of the central axis of the atomizer 1 are inconsistent. In another specific embodiment, the widths of the first air inlet 125 and the second air inlet 127 in the direction perpendicular to the central axis of the nebulizer 1 are inconsistent.

In other optional embodiments, the positions of the first air inlet 125 and the second air inlet 127 on the mount 12 are asymmetrical, and the sizes of the first air inlet 125 and the second air inlet 127 can also be It is set asymmetrically. In a specific embodiment, the positions of the first air inlet 125 and the second air inlet 127 in the direction of the central axis of the nebulizer 1 are asymmetrically arranged, or the first air inlet 125 and the second air inlet 127 are located at The position in the direction perpendicular to the central axis of the atomizer 1 is asymmetrical, and the heights of the first air inlet 125 and the second air inlet 127 in the direction of the central axis of the atomizer 1 are inconsistent, or the first air inlet 125 It is inconsistent with the width of the second air inlet 127 in the direction perpendicular to the central axis of the atomizer 1 .

In a specific embodiment, please refer to Fig. 9(a) to Fig. 9(c), Fig. 9(a) is a fitting of an embodiment of the airflow state in the atomization chamber and the air outlet channel in the nebulizer provided by the present application Schematic diagram; Figure 9(b) is a fitting schematic diagram of an embodiment of the aerosol state in the atomization chamber and the outlet channel of the atomizer provided by the present application; Figure 9(c) is the atomizer provided in Figure 9(b) The variation diagram of the relationship between the passage rate of medium and large droplets and the size of the first air inlet and/or the second air inlet. When the heights of the first air inlet 125 and the second air inlet 127 in the direction of the central axis of the atomizer 1 are inconsistent, or when the first air inlet 125 and the second air inlet 127 are located in the atomizer 1 When the widths in the vertical direction of the axis are inconsistent, the air inlet areas of the first air inlet 125 and the second air inlet 127 are inconsistent, and the flow rate of the air entering the atomization chamber 133 through the first air inlet 125 is the same as that through the second air inlet. There is a difference between the flow rates of the airflow entering the atomization chamber 133 through the hole 127, so that the two airflows entering the atomization chamber 133 through the first air inlet 125 and the second air inlet 127 are more likely to form a spiraling airflow, and then compared with The inner wall of the atomization chamber 133 is in close contact, so that the large droplets in the aerosol are more attached to the inner wall of the atomization chamber 133 and the inner wall of the air outlet channel 113 due to the effect of centrifugal force during the spiral upward process, thereby reducing the Passage rate of large droplets in aerosols. Among them, the particle size of the large droplet is 10-170um.

In another specific embodiment, please refer to Fig. 10(a) to Fig. 10(c), Fig. 10(a) is a simulation of an embodiment of the airflow state in the atomization chamber and the air outlet channel in the nebulizer provided by the present application. Fig. 10(b) is a fitting schematic diagram of another embodiment of the aerosol state in the atomization chamber and air outlet channel of the nebulizer provided by the present application; Fig. 10(c) is the mist provided in Fig. 10(b) The variation diagram of the relationship between the passing rate of large liquid droplets in the carburetor and the size of the first air inlet hole and/or the second air inlet hole. When the first air inlet 125 and the second air inlet 127 are arranged oppositely and their central axes coincide, but the height of the first air inlet 125 in the direction of the central axis of the atomizer 1 is greater than the height of the second air inlet 127, The width of the second air inlet 127 in the direction perpendicular to the central axis of the atomizer 1 is larger than that of the first air inlet 125 , so that the sizes of the first air inlet 125 and the second air inlet 127 are inconsistent. There is a difference between the flow rate of the airflow entering the atomization chamber 133 through the first air inlet 125 and the flow rate of the airflow entering the atomization chamber 133 through the second air inlet 127, so that the airflow through the first air inlet 125 and the second airflow The two airflows that enter the atomization chamber 133 through the holes 127 are more likely to form a spiraling airflow, and then come into close contact with the inner wall of the atomization chamber 133, so that the large droplets in the aerosol are due to the centrifugal force during the spiraling process. More are attached to the inner wall of the atomization chamber 133 and the inner wall of the air outlet channel 113, thereby reducing the passing rate of large droplets in the aerosol. Among them, the particle size of the large droplet is 10-170um.

In another specific embodiment, please refer to FIG. 11. FIG. 11 shows the passing rate of large liquid droplets and the ratio of the first air inlet and/or the second air inlet in another embodiment of the atomizer provided by the present application. Diagram of the relationship between dimensions. When the heights of the first air inlet 125 and the second air inlet 127 in the direction of the central axis of the atomizer 1 are inconsistent, and the first air inlet 125 and the second air inlet 127 are at the same The position in the vertical direction of the central axis is non-axisymmetric. The airflow direction entering the atomization chamber 133 through the first air inlet hole 125 and the airflow direction entering the atomization chamber 133 through the second air inlet hole 127 both rotate around the central axis of the atomizer 1, so that the airflow direction through the first air inlet Holes 125 and second air inlets 127 respectively enter the two streams of airflow into the atomization chamber 133 to form a spiral airflow more easily, and then closely contact with the inner wall of the atomization chamber 133, so that the large liquid droplets in the aerosol are spirally ascending During the process, due to the effect of centrifugal force, more of them are attached to the inner wall of the atomization chamber 133 and the inner wall of the air outlet channel 113, thereby reducing the passing rate of large droplets in the aerosol. Among them, the particle size of the large droplet is 10-170um.

In a preferred embodiment, the first air inlet 125 and/or the second air inlet 127 are arranged obliquely to the inner wall parallel to the central axis of the atomizer 1 , and the inclination direction of the inner wall is consistent. In a specific embodiment, the inner wall of the first air inlet 125 and/or the second air inlet 127 near the air outlet channel 113 is inclined; wherein, the end of the inner wall near the atomization chamber 133 is in contact with the atomization surface 166 The distance between the planes is smaller than the distance between the end of the inner wall away from the atomizing chamber 133 and the plane of the atomizing surface 166 . In a preferred embodiment, the shape of the first air inlet 125 and/or the second air inlet 127 is a rectangle, and the height of the side perpendicular to the atomizing surface 166 of the rectangle is not greater than the height of the side parallel to the atomizing surface 166 of the rectangle. width. That is to say, the length of the side of the rectangle parallel to the central axis of the atomizer 1 is not greater than the length of the side of the rectangle perpendicular to the central axis of the atomizer 1 . The shapes of the first air inlet 125 and the second air inlet 127 can also be other shapes, as long as it is convenient for the gas entering the atomization chamber 133 to form a spiral airflow in the atomization chamber 133 . Here, the shape and size of the first air inlet 125 and the second air inlet 127 are not limited.

In an optional embodiment, the positions of the first air intake portion 124 and the second air intake portion 126 are non-axisymmetric. In a preferred embodiment, the first air intake portion 124 and the second air intake portion 126 can be arranged centrally and symmetrically so that external air can enter the atomization chamber through the first air intake portion 124 and the second air intake portion 126 133 forms a spiraling airflow. In a specific embodiment, the positions of the first air inlet 125 and the second air inlet 127 may be at least partially offset. In a specific embodiment, the central axis of the first air inlet 125 may coincide with the central axis of the second air inlet 127 and be parallel to the atomizing surface 166 . The central axis of the first air inlet 125 may not coincide with the central axis of the second air inlet 127 but be parallel to each other and to the atomizing surface 166 . The positions of the first air inlet 125 and the second air inlet 127 can also be disposed on the annular side wall 122 of the upper base 121 in a shifted position. That is, the first air inlet 125 and the second air inlet 127 are non-axisymmetric and non-centrosymmetric. In a specific embodiment, the position of the first air intake hole 125 and the position of the second air intake hole 127 may also be laterally misaligned. The structure of the first air intake hole 125 and the structure of the second air intake hole 127 may be the same or different. The shapes of the first air inlet 125 and the second air inlet 127 may be the same or different. In another optional embodiment, the positions of the first air inlet 125 and the second air inlet 127 may be misaligned, and the first air inlet 125 and the second air inlet 127 may be at least partly misaligned.

In another optional embodiment, the total air intake area of the first air intake portion 124 is inconsistent with the total air intake area of the second air intake portion 126 . Specifically, the number of the first air inlet 125 may be one or multiple. The number of the second air inlet 127 can be one or more. When the air inlet area of a first air inlet 125 is equal to the air inlet area of a second air inlet 127, the quantity of the first air inlet 125 can be different from the quantity of the second air inlet 127, can like this There is a difference between the flow rate of the airflow entering the atomization chamber 133 through the first air intake part 124 and the flow rate of the airflow entering the atomization chamber 133 through the second air intake part 126, which is conducive to the formation of a spiral airflow in the atomization chamber 133 .

In a preferred embodiment, the width of the first air inlet 125 and/or the second air inlet 127 is equal to the distribution width of the heating element 162 . The width direction of the heating element 162 is the direction of the line connecting the two lower liquid holes 131 . In another optional embodiment, the first air inlet 125 and the second air inlet 127 are circular in shape, and the diameters of the first air inlet 125 and the second air inlet 127 are equal to the width of the heating element 162 .

The lower base body 141 is disposed on a side of the upper base body 121 away from the air outlet channel 113 , and is fixedly connected with the upper base body 121 . Specifically, the upper seat body 121 can be engaged with the lower seat body 141 . A third seal 193 is arranged between the upper base 121 and the lower base 141. The third seal 193 is installed on the side of the lower base 141 close to the upper base 121. The third seal 193 is in contact with the inner wall of the installation space, the atomizing The cores 16 cooperate to form the above-mentioned lower liquid channel 136 . In a specific embodiment, the lower base body 141 includes a base plate 142 and a supporting component disposed on a surface of the base plate 142 close to the atomizing core 16 . In a specific embodiment, the support assembly includes a first support arm 146 and a second support arm 147 , and the first support arm 146 and the second support arm 147 are oppositely disposed on the base plate 142 at intervals. The first support arm 146 and the second support arm 147 are used to support the third seal 193 .

The end cover 18 is provided with an air inlet 148, and the end of the air inlet passage 149 away from the first air inlet part 124 or the second air inlet part 126 is used as the air inlet 148, and the outside atmosphere enters the air inlet passage 149 through the air inlet 148, Then it is transported into the atomization chamber 133 through the first air inlet 124 and the second air inlet 126 .

In an electronic atomization device provided in this embodiment, the atomizer includes: a casing having a liquid storage cavity, an installation cavity, and an air outlet channel; an installation seat, at least partially accommodated in the installation cavity; an atomizing core, Installed in the installation seat, the atomizing core communicates with the liquid storage chamber, the atomizing surface of the atomizing core is opposite to the air outlet channel and arranged at intervals, and an atomizing chamber is formed between the atomizing core and the air outlet channel. In this application, a first air inlet and a second air inlet are provided on both sides of the atomization chamber, and the two airflows that enter through the first air inlet and the second air inlet form a spiral that drives the aerosol above the atomization surface. The rising airflow allows the airflow carrying the aerosol to fully contact the inner wall of the air outlet channel, so as to extend the transmission path of the aerosol and make more large droplets in the aerosol adhere to the inner wall of the atomization chamber and the air outlet channel. In turn, the content of large droplets at the outlet of the atomization chamber is reduced.

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

Claims

An atomizer, wherein the atomizer comprises:

A housing, the housing has a liquid storage cavity, an installation cavity and an air outlet channel;

the mounting seat is at least partially accommodated in the mounting cavity;

An atomizing core installed in the installation seat, the atomizing core communicates with the liquid storage chamber, the atomizing surface of the atomizing core is opposite to the air outlet channel and arranged at intervals, and the atomizing core An atomization chamber is formed between the air outlet channel;

Wherein, the two sides of the atomization chamber are provided with a first air intake portion and a second air intake portion, and the two airflows entering through the first air intake portion and the second air intake portion An airflow driving the aerosol spirally rising along the inner wall of the air outlet channel is formed above the surface.
The atomizer according to claim 1, wherein the atomization chamber comprises a first cavity and a second cavity communicated with each other, the first cavity is close to the air outlet channel, and the second cavity Close to the atomizing surface, the port of the first cavity close to the air outlet channel forms a constriction structure pointing to the air outlet channel, and the second cavity communicates with the air outlet channel through the first cavity.
The atomizer according to claim 2, wherein the inner wall of the first cavity is a concave curved surface or a plane.
The atomizer according to claim 1, wherein the side wall of the atomization chamber is integrally formed with the inner wall of the mounting seat.
The atomizer according to claim 1, wherein the side wall of the atomization chamber is integrally formed with the inner wall of the housing.
The atomizer according to claim 1, wherein the first air inlet and the second air inlet are arranged asymmetrically.
The atomizer according to claim 6, wherein the air intake direction of the first air intake portion and the air intake direction of the second air intake portion are parallel to each other and parallel to the atomizing surface.
The atomizer according to claim 6, wherein the air intake direction of the first air intake portion and the air intake direction of the second air intake portion are not parallel to each other.
The atomizer according to claim 6, wherein, the first air inlet part includes a first air inlet hole, the second air inlet part includes a second air inlet hole, and the first air inlet hole is connected to the first air inlet hole. The second air intake hole is arranged on two opposite surfaces of the mounting seat, and the inner wall surface of the first air intake hole away from the air outlet channel and the second air intake hole are away from the air outlet channel The inner wall surface on one side is flush with the atomizing surface.
The atomizer according to claim 9, wherein the positions of the first air inlet and the second air inlet on the mounting seat are arranged asymmetrically.
The atomizer according to claim 10, wherein the positions of the first air inlet and the second air inlet in the direction of the central axis of the atomizer are arranged asymmetrically.
The atomizer according to claim 10, wherein the first air inlet and the second air inlet are arranged asymmetrically in a direction perpendicular to the central axis of the atomizer.
The atomizer according to claim 10, wherein the sizes of the first air inlet and the second air inlet are asymmetrically arranged.
The atomizer according to claim 13, wherein the heights of the first air inlet and the second air inlet in the direction of the central axis of the atomizer are inconsistent.
The atomizer according to claim 13, wherein the widths of the first air inlet and the second air inlet in a direction perpendicular to the central axis of the atomizer are inconsistent.
The atomizer according to claim 9, wherein, the inner wall of the first air inlet and/or the second air inlet is inclined to the central axis of the atomizer, and the inner wall of the inner wall The direction of inclination is the same.
The atomizer according to claim 16, wherein, the inner wall of the first air inlet and/or the second air inlet near the outlet channel is inclined; wherein, the inner wall is close to The distance between one end of the atomization chamber and the plane where the atomization surface is located is smaller than the distance between the end of the inner wall surface away from the atomization chamber and the plane where the atomization surface is located.
The atomizer according to claim 17, wherein, the shape of the first air inlet and/or the second air inlet is rectangular, and the height of the side perpendicular to the atomizing surface of the rectangle is not greater than greater than the width of the side of the rectangle parallel to the atomizing surface.
An electronic atomization device, wherein the electronic atomization device comprises a power supply assembly and the atomizer according to claim 1 above, the power supply assembly is used to supply power to the atomizer.