CN116406837A

CN116406837A - Electronic atomization device and atomizer thereof

Info

Publication number: CN116406837A
Application number: CN202111656363.7A
Authority: CN
Inventors: 龚博学; 杨俊�; 李光辉; 赵月阳; 吕铭
Original assignee: Shenzhen Smoore Technology Ltd
Current assignee: Shenzhen Smoore Technology Ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2023-07-11
Also published as: WO2023124524A1

Abstract

The invention provides an electronic atomization device and an atomizer thereof, wherein the atomizer comprises: an airflow channel for transporting aerosol; the atomizing core is arranged in the airflow channel and is provided with an atomizing surface; the airflow channel comprises a first air inlet channel and a second air inlet channel which are arranged at intervals. In the application, by arranging the first air inlet channel, the air flow in the first air inlet channel carries aerosol generated by the atomizing surface of the atomizing core; through setting up the second air inlet channel, make the air current in the second air inlet channel form the barrier layer between the aerosol that the air current of first air inlet channel carried and the internal face of air flow channel, the barrier layer stops the internal face of air flow channel is impacted to the aerosol that the air current of first air inlet channel carried, avoids the aerosol to take place condensation, the drop of carrying to be caught by the internal face of air flow channel on the internal face of air flow channel, and then promotes the transmission efficiency of aerosol in the air flow channel.

Description

Electronic atomization device and atomizer thereof

Technical Field

The invention relates to the technical field of atomizing devices, in particular to an electronic atomizing device and an atomizer thereof.

Background

The electronic atomization device in the prior art mainly comprises an atomizer and a power supply assembly. The atomizer generally includes a liquid storage chamber for storing an aerosol-forming substrate and an atomizing assembly for heating and atomizing the aerosol-forming substrate to form an aerosol for consumption by a smoker; the power supply assembly is used for providing energy to the atomizer. In the transmission process of aerosol in the prior atomizer in the air passage, the transmission efficiency is lower.

Disclosure of Invention

The invention mainly solves the technical problem of providing an electronic atomization device and an atomizer thereof, and solves the problem of lower aerosol transmission efficiency in the prior art.

In order to solve the technical problems, the first technical scheme adopted by the invention is as follows: there is provided an atomizer, the atomizer comprising: an airflow channel for transporting aerosol; the atomizing core is arranged in the airflow channel and is provided with an atomizing surface; the air flow channel comprises a first air inlet channel and a second air inlet channel which are arranged at intervals, and the air flow of the first air inlet channel is transmitted from one end of the atomization surface, which is close to the first air inlet channel, to the other end of the atomization surface, which is far from the first air inlet channel, so as to carry aerosol; the airflow of the second air inlet channel forms a barrier layer between the inner wall of the airflow channel and the aerosol so as to prevent the aerosol from contacting with the inner wall surface of the airflow channel.

Wherein, the axis of atomizing face and atomizer is parallel to each other.

The air inlet direction of the first air inlet channel and the air inlet direction of the second air inlet channel are parallel to the atomization surface, and the second air inlet channel is arranged on one side, far away from the atomization surface, of the first air inlet channel.

Wherein, the airflow velocity of the second air inlet channel is larger than that of the first air inlet channel.

Wherein the cross-sectional area of the first intake passage is larger than the cross-sectional area of the second intake passage.

The first air inlet channel and/or the second air inlet channel are rectangular holes or a plurality of round holes with rectangular cross sections perpendicular to the central axis of the atomizer.

The first air inlet channel and the second air inlet channel are rectangular holes with rectangular cross sections perpendicular to the central axis of the atomizer; the length direction of the rectangular hole is parallel to the atomizing surface.

The length of the rectangular hole is the same as the size of the atomizing area of the atomizing surface in the length direction of the rectangular hole.

The atomizing core comprises a compact substrate, wherein the compact substrate is provided with an atomizing surface and a liquid suction surface opposite to the atomizing surface; the dense substrate has a micropore array region having a plurality of micropores for directing the aerosol-forming substrate from the liquid-absorbing surface to the atomizing surface; the micropore array area of the atomizing surface is an atomizing area of the atomizing surface.

Wherein the length of the rectangular hole is 2-4 mm, and the width of the rectangular hole is 0.2-0.5 mm.

Wherein the width of the rectangular hole of the first air inlet channel is larger than the width of the rectangular hole of the second air inlet channel.

Wherein, the cooperation of atomizing face and air current passageway's partial internal face forms the atomizing chamber, and the first end of atomizing core is hugged closely with the diapire in atomizing chamber and is set up, and the atomizing face is relative and the setting with the medial surface in atomizing chamber, and the diapire in atomizing chamber sets up with the passageway of giving vent to anger relatively in atomizing chamber, and first inlet channel and second inlet channel set up on the diapire in atomizing chamber, and the air current direction of second inlet channel is on a parallel with the medial surface in atomizing chamber.

Wherein, be equipped with the inlet port on the diapire in atomizing chamber, the diapire in atomizing chamber is equipped with the bellying towards the surface of atomizing core, and the inlet port runs through diapire and bellying, is equipped with the division in the inlet port, and the division is parallel with the atomizing face, and the division divide into first inlet channel and second inlet channel with the inlet port.

The first air inlet channel and the second air inlet channel are provided with common side walls, the end parts of the common side walls, which are close to the atomizing core, are provided with extension parts, the extension parts are provided with air guide parts, and the air guide parts are used for guiding air flow of the first air inlet channel to an atomizing surface.

The surface of the extension part facing the atomizing surface is provided with a chamfer which is used as an air guide part.

Wherein the chamfer is lower than the atomizing area of the atomizing face to guide the air flow entering from the first air inlet channel to the side of the atomizing area of the atomizing face away from the air outlet.

In order to solve the technical problems, a second technical scheme adopted by the invention is as follows: an electronic atomization device is provided, the electronic atomization device comprises an atomizer and a power supply assembly, the atomizer is like the atomizer, and the power supply assembly provides electric energy for the atomizer.

The beneficial effects of the invention are as follows: in distinction from the prior art, there is provided an electronic atomizing device and atomizer thereof, the atomizer comprising: an airflow channel for transporting aerosol; the atomizing core is arranged in the airflow channel and is provided with an atomizing surface; the airflow channel comprises a first air inlet channel and a second air inlet channel which are arranged at intervals. In the application, by arranging the first air inlet channel, the air flow in the first air inlet channel carries aerosol generated by the atomizing surface of the atomizing core; through setting up the second air inlet channel, make the air current in the second air inlet channel form the barrier layer between the aerosol that the air current of first air inlet channel carried and the internal face of air flow channel, the barrier layer stops the internal face of air flow channel is impacted to the aerosol that the air current of first air inlet channel carried, avoids the aerosol to take place condensation, the drop of carrying to be caught by the internal face of air flow channel on the internal face of air flow channel, and then promotes the transmission efficiency of aerosol in the air flow channel.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of an electronic atomizing device provided in the present application;

fig. 2 is a schematic longitudinal section structure of an atomizer in the electronic atomization device provided by the application;

FIG. 3 is a schematic structural view of an atomizing core provided herein;

FIG. 4 is a schematic view of an embodiment of a mounting base provided in the present application;

FIG. 5 is a schematic view of a first embodiment of a nebulizer provided herein;

FIG. 6 is a schematic view of a second embodiment of a nebulizer provided herein;

FIG. 7 is a schematic view of a third embodiment of a nebulizer provided herein;

FIG. 8 is a schematic view of an embodiment of the atomizer provided in FIG. 7;

FIG. 9 is a bottom view of the atomizer provided in FIG. 8;

FIG. 10 is a schematic illustration of a simulation of the delivery of aerosol through the airflow passage of the atomizer provided in FIG. 8;

FIG. 11 is a schematic view of a fourth embodiment of a nebulizer provided herein;

FIG. 12 is a schematic view of an embodiment of the atomizer provided in FIG. 11;

FIG. 13 is a schematic illustration of a simulation of the delivery of aerosol through the airflow passage of the atomizer provided in FIG. 11;

FIG. 14 is a schematic view of a fifth embodiment of a nebulizer provided herein;

FIG. 15 is a schematic view of an embodiment of the atomizer provided in FIG. 14;

FIG. 16 is a schematic illustration of a simulation of the delivery of aerosol through the airflow path of the atomizer provided in FIG. 14;

FIG. 17 is a schematic view of another embodiment of a nebulizer provided herein;

fig. 18 is a schematic illustration of a simulation of the delivery of aerosol through the airflow path of the atomizer provided in fig. 17.

In the figure: an electronic atomizing device 100; an atomizer 101; a housing 1; a first annular sidewall 11; a first top wall 12; an air outlet hole 121; an air guide passage 13; a mounting space 14; a first inner side 141; a second inner side 142; a liquid storage chamber 15; an atomizing core 2; a first end 21; a second end 22; a dense substrate 23; a heating element 24; an atomizing surface 25; an atomizing area 251; a liquid suction surface 26; a mounting base 3; an upper housing 31; a second annular sidewall 311; a second top wall 312; a liquid discharge hole 313; a vent 314; a tubular structure 315; a lower base 32; a bottom wall 321; an air inlet hole 322; a housing chamber 33; a fenestration 34; an atomizing chamber 4; an intake passage 41; a first intake passage 411; a second intake passage 412; rectangular holes 413; a circular hole 414; a boss 415; a partition 416; an air guide portion 417; extension 4171; chamfering 4172; an outlet channel 42; an air flow passage 5; an air inlet end 51; an air outlet end 52; a first seal 6; a through hole 61; a second seal 7; a power supply assembly 102.

Detailed Description

The following describes embodiments of the present invention in detail with reference to the drawings.

In the following description, for purposes of explanation and not limitation, specific details are set forth such as the particular system architecture, interfaces, techniques, etc., in order to provide a thorough understanding of the present invention.

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

The terms "first," "second," "third," and the like in this disclosure are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", and "a third" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise. All directional indications (such as up, down, left, right, front, back … …) in embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular gesture (as shown in the drawings), and if the particular gesture changes, the directional indication changes accordingly. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the invention. The appearances of such phrases 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. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

The inventor of the application researches and discovers that in the process of conveying aerosol in an air passage in an atomizer, the design of an air inlet is unreasonable, the size and the shape of the air passage are changed, the aerosol and liquid drops carried in the aerosol impact the inner wall surface of the air passage, the aerosol can be condensed when the inner wall surface is cooled, and the liquid drops carried by the aerosol can be captured by the inner wall surface, so that the conveying efficiency of the aerosol in the air passage is reduced. Therefore, the application provides an atomizer capable of improving the transmission efficiency of aerosol in an air passage and an electronic atomization device adopting the atomizer.

Referring to fig. 1, fig. 1 is a schematic structural diagram of an electronic atomization device provided in the present application. In this embodiment, an electronic atomization device 100 is provided, and the electronic atomization device 100 may be used for atomization of an aerosol-forming substrate. The electronic atomizing device 100 includes an atomizer 101 and a power supply assembly 102 connected to each other. The atomizer 101 is used for storing and atomizing an aerosol-forming substrate to form aerosol which can be absorbed by a user, wherein the aerosol-forming substrate can be liquid substrates such as liquid medicine, plant grass and leaf liquid and the like; the atomizer 101 can be used in different fields, such as medical, cosmetic, leisure, and the like. The power supply assembly 102 includes a battery (not shown), an airflow sensor (not shown), a controller (not shown), and the like; the power supply assembly 102 is used for supplying power to the atomizer 101 and controlling the atomizer 101 to work so that the atomizer 101 can atomize aerosol-forming substrates to form aerosols; the airflow sensor is used for detecting airflow variation in the electronic atomization device 100, and the controller starts the electronic atomization device 100 according to the airflow variation detected by the airflow sensor. The atomizer 101 and the power supply assembly 102 can be integrally arranged, or can be detachably connected, and the design is carried out according to specific needs. Of course, the power supply assembly 102 further includes other components such as a circuit board, a bracket, etc., and the specific structure and function of these components are the same as or similar to those of the prior art, and specific reference may be made to the prior art, which is not repeated herein.

Referring to fig. 2, fig. 2 is a schematic longitudinal section structure of an atomizer in the electronic atomization device provided in the present application. The atomizer 101 comprises a housing 1, a mount 3, an atomizing core 2, a first seal 6 and a second seal 7. The housing 1 has an installation space 14, and the mount 3 is accommodated in the installation space 14 and fixedly connected to the inner side surface of the installation space 14 through the first seal 6. The mounting seat 3 is matched with the inner wall surface of part of the mounting space 14 to form a liquid storage cavity 15, and the liquid storage cavity 15 is used for storing aerosol forming matrixes. The mounting seat 3 is provided with a containing cavity 33, the atomizing core 2 is contained in the containing cavity 33, and the atomizing core 2 is fixedly connected with the mounting seat 3 through the second sealing piece 7.

The housing 1 comprises a first annular side wall 11 and a first top wall 12 connected to one end of the first annular side wall 11. The first annular side wall 11 and the first top wall 12 cooperate to form an installation space 14. The mounting space 14 is open at an end remote from the first top wall 12. The first top wall 12 is provided with an air outlet hole 121, and the edge of the air outlet hole 121 extends into the installation space 14 to form an air guide channel 13. The air guide channel 13 is integrally formed with the housing 1. The cross section of the installation space 14 may be elliptical or rectangular, that is, the cross section of the installation space 14 has a length direction and a width direction. In other alternative embodiments, the mounting space 14 may be circular in cross-section.

Referring to fig. 3, fig. 3 is a schematic structural diagram of an atomizing core provided in the present application. The atomizing core 2 comprises a dense matrix 23 and a heating element 24. Dense substrate 23 has an atomizing face 25 and a liquid absorbing face 26 opposite atomizing face 25. The liquid suction surface 26 is in direct contact with the aerosol-forming substrate of the liquid storage chamber 15, and the atomizing surface 25 is used for atomizing the aerosol-forming substrate to obtain an aerosol. Dense substrate 23 has a micropore array region having a plurality of micropores for directing aerosol-forming substrate from liquid absorbing surface 26 to atomizing surface 25; the array of micro-holes of the atomizing face 25 is the atomizing area 251 of the atomizing face 25. In the present embodiment, the dense substrate 23 is a glass substrate, or may be a dense ceramic substrate. In other embodiments, the atomizing core 2 includes a porous ceramic substrate having an atomizing face 25 and a liquid absorbing face 26 opposite the atomizing face 25, and a heat generating element 24 disposed on the atomizing face 25, wherein the entire atomizing face 25 of the heat generating element 24 is an atomizing area 251.

Referring to fig. 4, fig. 4 is a schematic structural diagram of an embodiment of a mounting seat provided in the present application. The mounting seat 3 is mounted to a portion of the mounting space 14 remote from the first top wall 12. The mounting seat 3 comprises an upper seat body 31 and a lower seat body 32 matched with the upper seat body 31, wherein the lower seat body 32 is arranged on one side, far away from the first top wall 12, of the upper seat body 31. The upper seat 31 is fixedly connected with the inner side wall of the installation space 14, and a part of the inner wall surface of the installation space 14, which is close to the first top wall 12, is matched with the outer wall of the upper seat 31 to form a liquid storage cavity 15. The liquid storage cavity 15 surrounds the periphery of the air guide channel 13. The upper seat 31 and the lower seat 32 are cooperatively arranged to form a receiving cavity 33. The housing chamber 33 is used for housing the atomizing core 2. Specifically, the upper housing 31 is provided with a lower liquid hole 313 and a vent hole 314, and the lower liquid hole 313 and the vent hole 314 are disposed at intervals. The end of the air guide channel 13 remote from the air outlet hole 121 is connected to the air vent 314. Specifically, the end of the air guide channel 13 away from the air outlet hole 121 is communicated with the air vent 314 through the first sealing member 6, so that air leakage between the air guide channel 13 and the air vent 314 of the upper seat 31 is avoided. The air guide passage 13 communicates with the housing chamber 33 through the vent hole 314. The atomizing core 2 covers the lower liquid hole 313, and the periphery of the atomizing core 2 is tightly attached to the inner wall surface of the lower liquid hole 313 through the second sealing member 7, so that the leakage of the aerosol forming substrate of the liquid storage cavity 15 is avoided. In a specific embodiment, the second sealing member 7 is a sealing ring, and the end surface far away from the liquid storage cavity 15 is provided with a groove, the atomizing core 2 is embedded in the groove of the second sealing member 7, and the atomizing surface 25 of the atomizing core 2 and the end surface far away from the liquid storage cavity 15 of the second sealing member 7 are in the same plane. In this embodiment, the lower base 32 includes a bottom wall 321, a connecting portion is disposed on the bottom wall 321, and the bottom wall 321 is clamped with the upper base 31 through the connecting portion to form the accommodating cavity 33.

The atomizing face 25 cooperates with the inner wall surface of the housing chamber 33 to form the atomizing chamber 4, and in one embodiment, the bottom wall 321 of the lower housing 32 serves as the bottom wall 321 of the atomizing chamber 4. The atomizing chamber 4 has an inlet passage 41 and an outlet passage 42. The atomizing chamber 4 communicates with the air guide passage 13 through the air outlet passage 42. The air intake passage 41 includes a first air intake passage 411 and a second air intake passage 412 provided at intervals, and the first air intake passage 411 and the second air intake passage 412 communicate with the atomizing chamber 4. The air flow of the first air inlet channel 411 is transmitted from one end of the atomizing face 25 of the atomizing core 2 close to the first air inlet channel 411 to the other end far from the first air inlet channel 411, so that the air flow passing through the first air inlet channel 411 carries the aerosol generated by the atomizing face 25 to the air outlet channel 42 of the atomizing chamber 4. Wherein, the second air inlet channel 412 is disposed on the bottom wall 321 of the lower housing 32.

The air inlet channel 41, the atomizing chamber 4, the air outlet channel 42 and the air guide channel 13, which are sequentially communicated, form an air flow channel 5, the air inlet channel 41 is used as an air inlet end 51 of the air flow channel 5, and one end, far away from the air outlet channel 42, of the air guide channel 13 is used as an air outlet end 52 of the air flow channel 5.

Referring to fig. 3, the atomizing core 2 may include a first end 21 and a second end 22, with the first end 21 of the atomizing core 2 being disposed opposite the second end 22 of the atomizing core 2. The first air inlet channel 411 is disposed near the first end 21 of the atomizing core 2, and the air flow of the first air inlet channel 411 reaches the first end 21 of the atomizing core 2 and is then transferred from the first end 21 to the second end 22 of the atomizing core 2, so as to transfer the aerosol generated by the atomizing surface 25 of the atomizing core 2 to the air outlet channel 42 of the atomizing cavity 4, and then flows out of the atomizing cavity 4 from the air outlet channel 42 after being mixed with the air flow of the second air inlet channel 412. The airflow in the second air inlet channel 412 forms a barrier layer between the inner side surface of the airflow channel 5 and the aerosol, so as to prevent the aerosol carried by the airflow in the first air inlet channel 411 from contacting the inner side surface of the airflow channel 5, avoid condensation of the aerosol contacting the inner side wall of the airflow channel 5, and prevent droplets carried by the aerosol from being captured by the inner wall surface of the airflow channel 5, thereby improving the transmission efficiency of the aerosol in the airflow channel 5.

Referring to fig. 5-6, fig. 5 is a schematic view of a first embodiment of a nebulizer provided herein; fig. 6 is a schematic view of a second embodiment of the atomizer provided herein.

In order to further improve the transmission efficiency of the aerosol in the airflow channel 5, the airflow velocity of the second air inlet channel 412 is greater than that of the first air inlet channel 411, so that the aerosol carried by the airflow of the first air inlet channel 411 can be further prevented from contacting the inner wall surface of the airflow channel 5. For example, the airflow rate of the second air inlet channel 412 is 1.2-1.5 times that of the first air inlet channel 411, if the airflow rate of the second air inlet channel 412 is too large, the concentration of aerosol sucked by the user is too low, and if the airflow rate of the second air inlet channel 412 is too small, it is difficult to effectively block the aerosol carried by the airflow of the first air inlet channel 411 from contacting the inner wall surface of the airflow channel 5. In one embodiment, the cross-sectional area of the first air intake passage 411 is greater than the cross-sectional area of the second air intake passage 412, such that the airflow rate of the second air intake passage 412 is greater than the airflow rate of the first air intake passage 411 at the same suction pressure differential of the user. In other alternative embodiments, when the cross-sectional area of the first air intake passage 411 is equal to the cross-sectional area of the second air intake passage 412, a pressurizing structure is formed at a side of the second air intake passage 412 away from the atomizing chamber 4 or inside the second air intake passage 412 so that the airflow rate of the second air intake passage 412 is greater than that of the first air intake passage 411. For example, the longitudinal section of the second intake passage 412 is a reduced-mouth structure. I.e. the port of the second inlet channel 412 close to the nebulization chamber 4 is smaller than the port of the second inlet channel 412 remote from the nebulization chamber 4. Preferably, the longitudinal section of the second air inlet channel 412 is a right trapezoid or isosceles trapezoid, and an included angle of 10-30 degrees is formed between the air inlet direction of the second air inlet channel 412 and the inner wall surface of the air flow channel 5, so that the blocking effect is further enhanced.

Wherein, the atomizing surface 25 of the atomizing core 2 and the inner side surface of the air flow channel 5 can be arranged at a preset angle. The angle between the atomizing surface 25 of the atomizing core 2 and the inner side surface of the air flow channel 5 is different, and the arrangement mode of the first air inlet channel 411 and the second air inlet channel 412 can be adjusted according to the direction of the atomizing surface 25 of the atomizing core 2.

Referring to fig. 7 to 13, fig. 7 is a schematic view of a third embodiment of an atomizer provided in the present application; FIG. 8 is a schematic view of an embodiment of the atomizer provided in FIG. 7; FIG. 9 is a bottom view of the atomizer provided in FIG. 8; FIG. 10 is a schematic illustration of a simulation of the delivery of aerosol through the airflow passage of the atomizer provided in FIG. 8; FIG. 11 is a schematic view of a fourth embodiment of a nebulizer provided herein; FIG. 12 is a schematic view of an embodiment of the atomizer provided in FIG. 11; fig. 13 is a schematic illustration of a simulation of the delivery of aerosol through the airflow path of the atomizer provided in fig. 11.

In one embodiment, the atomizing surface 25 is disposed non-parallel to the inner side of the mounting space 14. Specifically, the atomizing face 25 is disposed non-parallel to the inner side face of the installation space 14. In a preferred embodiment, the atomizing surface 25 of the atomizing core 2 can be arranged perpendicularly to the inner side of the installation space 14. Specifically, the atomizing surface 25 is disposed perpendicularly to the inner side surface of the installation space 14. The atomizing surface 25 is disposed opposite to and parallel to the bottom wall 321 of the lower housing 32. The inner side surface of the installation space 14 includes a first inner side surface 141 and a second inner side surface 142, and the first inner side surface 141 is disposed opposite to the second inner side surface 142. The part of the outer side wall of the upper seat 31 connected with the first end 21 of the atomizing core 2 is fixedly connected with the first inner side 141 of the installation space 14; the part of the outer side wall of the upper seat 31 connected with the second end 22 of the atomizing core 2 is spaced from the second inner side surface 142 of the installation space 14 to form the air outlet channel 42 of the atomizing chamber 4 in a matching manner. The air outlet passage 42 communicates with the air guide passage 13 through an air vent 314 in the upper housing 31.

In a specific embodiment, the side wall of the mounting seat 3, which is attached to the first inner side 141 or the second inner side 142, is provided with a window 34, and the inner side of part of the mounting space 14 is exposed through the window 34, that is, the inner side of the exposed mounting space 14 is used as the inner side of the atomizing chamber 4. That is, the position of the window 34 on the side wall of the mounting base 3 is on the same side as the position of the first end 21 or the second end 22 of the atomizing core 2. In this embodiment, the upper housing 31 includes a second annular sidewall 311 and a second top wall 312 connected to an end of the second annular sidewall 311 away from the lower housing 32. The second annular side wall 311 cooperates with the top wall and the bottom wall 321 of the lower housing 32 to form the receiving cavity 33. The second top wall 312 is provided with a lower liquid hole 313 and a vent hole 314, and the lower liquid hole 313 and the vent hole 314 are arranged at intervals. The atomizing core 2 is closely attached to the periphery of the liquid discharge hole 313 by the second seal 7. The space between the atomizing core 2 and the bottom wall 321 serves as an atomizing chamber 4. The window 34 on the mounting seat 3 is arranged on the second annular side wall 311.

In the present embodiment, the second inlet channel 412 is disposed opposite to the outlet channel 42. Specifically, the second air intake passage 412 is provided on the bottom wall 321, and the bottom wall 321 is provided opposite to the atomizing face 25 of the atomizing core 2. The second air inlet channel 412 is disposed in a projection area of the air outlet channel 42 on the bottom wall 321, and an air flow direction of the second air inlet channel 412 is parallel to an inner side surface of the air flow channel 5. In a specific embodiment, the cross-section of the second inlet channel 412 is smaller in size than the projected area of the outlet channel 42 on the bottom wall 321. As shown in fig. 7, in order to avoid the airflow in the second air inlet channel 412 from blocking the air outlet channel 42, the aerosol carried by the airflow in the first air inlet channel 411 flows back in the atomizing chamber 4, and the shortest distance h1 between the edge of the cross section of the second air inlet channel 412 away from the second inner side surface 142 and the second inner side surface 142 is smaller than the shortest distance h2 between the edge of the cross section of the air outlet channel 42 away from the second inner side surface 142 and the second inner side surface 142. Referring to fig. 5 and 6, in a preferred embodiment, the longitudinal axis L2 of the second inlet channel 412 is on a side of the longitudinal axis L1 of the outlet channel 42 remote from the first inlet channel 411.

The first inlet channel 411 and the outlet channel 42 may be arranged in a staggered manner. Specifically, the first air inlet channel 411 is disposed on the inner wall of the atomizing chamber 4 on the side of the atomizing area 251 of the atomizing core 2 remote from the air outlet channel 42.

Referring to fig. 7 to 10, in an embodiment, the first air inlet channel 411 is disposed on a bottom wall 321 of the lower base 32, and the bottom wall 321 is disposed opposite to the atomizing surface 25 of the atomizing core 2. The first air inlet channel 411 is disposed at a side of the projection area of the atomization zone 251 of the atomization core 2, which is far away from the second air inlet channel 412, in the bottom wall 321. The intake direction of the first intake passage 411 is parallel to the intake direction of the second intake passage 412. In order to avoid that the gas flow in the first gas inlet channel 411 directly hits the atomizing area 251 of the atomizing face 25, which causes a back flow of gas into the liquid storage chamber 15 through the micro-holes, the liquid discharge of the aerosol-forming substrate is affected. The projected area of the first inlet channel 411 on the atomizing face 25 is on the side of the atomizing area 251 remote from the outlet channel 42. In a further embodiment, the projection area of the first inlet channel 411 on the plane of the atomizing face 25 is on the end face of the second seal 7, which is arranged on the side of the atomizing core 2 remote from the outlet channel 42.

Referring to fig. 11 to 13, in another embodiment, the first air inlet channel 411 is disposed on a side wall of the atomizing chamber 4, and the first air inlet channel 411 is disposed on a side wall of the atomizing chamber 4 near the atomizing core 2. In a specific embodiment, the first air inlet channel 411 is disposed on the first annular sidewall 11 corresponding to the first inner side 141, and the air flow of the first air inlet channel 411 disposed on the first annular sidewall 11 enters the atomizing chamber 4 through the window 34 disposed on the sidewall of the mounting seat 3. Wherein the inner side of the first air inlet channel 411 near the atomizing core 2 may be slightly lower than the atomizing surface 25 of the atomizing core 2. The inner side of the first air inlet channel 411 near the atomizing core 2 may be in the same plane as the atomizing surface 25 of the atomizing core 2. The air inlet direction of the first air inlet channel 411 is parallel to the atomizing face 25, and the air flow direction of the first air inlet channel 411 flows along the first end 21 of the atomizing core 2 to the second end 22 of the atomizing core 2 to transport the aerosol atomized by the atomizing core 2 from the first end 21 of the atomizing core 2 to the second end 22 of the atomizing core 2 by the air flow in the first air inlet channel 411.

The first air inlet channel 411 and/or the second air inlet channel 412 may be formed by a rectangular hole 413 having a rectangular cross section perpendicular to the longitudinal axis of the atomizer 101 or a plurality of round holes 414 having a circular cross section. In this embodiment, the atomizing core 2 has a rectangular structure, and the first end 21 and the second end 22 of the atomizing core 2 correspond to two long sides of the atomizing core 2, respectively. In this embodiment, the first air inlet passage 411 is a single rectangular hole 413, and the length direction of the rectangular hole 413 is parallel to the first end 21 of the atomizing face 25. The length of the rectangular hole 413 is not smaller than the size of the atomizing area 251 of the atomizing face 25 in the length direction of the rectangular hole 413. Wherein the length of the rectangular hole 413 is not smaller than the size of the atomizing area 251 in the length direction of the rectangular hole 413. Wherein, the length of the rectangular hole 413 is 2 mm-5 mm, and the width of the rectangular hole 413 is 0.3 mm-0.8 mm. Referring to fig. 9, the second air intake passage 412 includes a plurality of circular holes 414 distributed along the length direction of the rectangular hole 413, and the distribution length H of the second air intake passage 412 is not smaller than the length of the rectangular hole 413. Wherein the diameter of the round hole 414 is 0.5 mm-1.5 mm. The second air intake passage 412 may include a plurality of round holes 414 sequentially distributed along the length direction of the rectangular hole 413, or may include a plurality of round holes 414 formed in a matrix distributed along the length direction of the rectangular hole 413. Wherein, the width of the rectangular hole 413 of the first air inlet channel 411 is larger than the width of the second air inlet channel 412 distributed along the width direction of the rectangular hole 413, so that the airflow velocity of the second air inlet channel 412 is larger than the airflow velocity of the first air inlet channel 411. In the present embodiment, the length direction of the rectangular hole 413 is the width direction of the atomizer 101, and the width direction of the rectangular hole 413 is the thickness direction of the atomizer 101.

In a specific embodiment, the first air inlet channel 411 is a rectangular hole 413, and the second air inlet channel 412 includes three circular holes 414 sequentially distributed along the length direction of the rectangular hole 413. The spacing between adjacent circular holes 414 is half the length dimension of rectangular holes 413.

In this embodiment, the atomizing surface 25 of the atomizing core 2 is not parallel to the inner side surface of the air flow channel 5, and the air flow in the first air inlet channel 411 carries the aerosol generated by the atomizing surface 25 of the atomizing core 2; by arranging the second air inlet channel 412, the air flow in the second air inlet channel 412 forms a barrier layer between the aerosol carried by the air flow in the first air inlet channel 411 and the inner wall surface of the air flow channel 5, and the barrier layer blocks the aerosol carried by the air flow in the first air inlet channel 411 from impacting the inner wall surface of the air flow channel 5, so that condensation of the aerosol on the inner wall surface of the air flow channel 5 and capture of carried liquid drops by the inner wall surface of the air flow channel 5 are avoided, and further, the transmission efficiency of the aerosol in the air flow channel 5 is improved.

Referring to fig. 14 and 18, fig. 14 is a schematic view of a fifth embodiment of the atomizer provided herein; FIG. 15 is a schematic view of an embodiment of the atomizer provided in FIG. 14;

FIG. 16 is a schematic illustration of a simulation of the delivery of aerosol through the airflow path of the atomizer provided in FIG. 14; FIG. 17 is a schematic view of another embodiment of a nebulizer provided herein; fig. 18 is a schematic illustration of a simulation of the delivery of aerosol through the airflow path of the atomizer provided in fig. 17.

In a further preferred embodiment, the atomizing surface 25 is arranged parallel to the inner side of the installation space 14. The atomizing surface 25 of the atomizing core 2 is disposed opposite to the first inner side 141 of the installation space 14, and the atomizing surface 25 cooperates with the first inner side 141 of the installation space 14 to form the atomizing chamber 4. In one embodiment, the upper seat 31 is a tubular structure 315, the longitudinal axis of the tubular structure 315 is parallel to or coincides with the longitudinal axis of the installation space 14, one end of the tubular structure 315 near the air outlet 121 is used as a vent 314 to connect with the air guide channel 13, the lower seat 32 covers one end of the tubular structure 315 far away from the air guide channel 13, and the lower seat 32 is clamped with the upper seat 31 to form the accommodating cavity 33.

The side wall of the tubular structure 315, which is close to the second inner side surface 142 of the installation space 14, is provided with a liquid discharging hole 313, and the atomizing core 2 is closely attached to the periphery of the liquid discharging hole 313 through the second sealing element 7. The atomizing surface 25 of the atomizing core 2 is disposed opposite to the inner wall surface of the accommodating cavity 33 near the first inner side surface 141, and the atomizing surface 25 cooperates with the inner wall surface of the accommodating cavity 33 to form the atomizing cavity 4. In this embodiment, the atomizing core 2 has a rectangular structure, and the first end 21 and the second end 22 of the atomizing core 2 correspond to two short sides of the atomizing core 2, respectively. The first end 21 of the atomizing core 2 is arranged close to the bottom wall 321 of the lower housing 32, and the second end 22 of the atomizing core 2 is located at a side of the first end 21 of the atomizing core 2 away from the lower housing 32, i.e. the second end 22 of the atomizing core 2 is close to the air guide channel 13. Wherein the long sides of the atomizing core 2 are parallel to the longitudinal axis of the installation space 14.

The outlet channel 42 of the nebulization chamber 4 is the end of the tubular structure 315 close to the air guide channel 13. The air inlet channel 41 of the atomizing chamber 4 is provided on the bottom wall 321 of the lower housing 32. Wherein, the bottom wall 321 of the atomizing chamber 4 is the bottom wall 321 of the lower base 32, and the inner side surface of the atomizing chamber 4 is the inner wall surface of the tubular structure 315. The intake passage 41 includes a first intake passage 411 and a second intake passage 412.

Referring to fig. 14 and 16, in the present embodiment, the air intake direction of the first air intake passage 411 and the air intake direction of the second air intake passage 412 are parallel to each other and are parallel to the inner side surface of the atomizing chamber 4 and the atomizing surface 25 of the atomizing core 2. The second air intake passage 412 is provided on a side of the first air intake passage 411 away from the atomizing face 25. The air flow of the first air inlet channel 411 transfers the aerosol generated by the atomizing face 25 of the atomizing core 2 from the first end 21 of the atomizing core 2 to the second end 22 of the atomizing core 2, and then from the second end 22 of the atomizing core 2 to the air outlet channel 42 until reaching the air outlet of the housing 1, and then into the mouth of a user.

The first air intake passage 411 and/or the second air intake passage 412 is a rectangular hole 413 or is composed of a plurality of circular holes 414. In this embodiment, the first air intake passage 411 and the second air intake passage 412 are each a single rectangular hole 413; the rectangular hole 413 has a length direction parallel to the first end 21 of the atomizing core 2. The length of the rectangular hole 413 is not smaller than the size of the atomizing area 251 of the atomizing face 25 in the length direction of the rectangular hole 413. Wherein, the length of the rectangular hole 413 is 2 mm-4 mm, and the width of the rectangular hole 413 is 0.2 mm-0.5 mm. Wherein, the width of the rectangular hole 413 of the first air inlet channel 411 is larger than the width of the rectangular hole 413 of the second air inlet channel 412, so that the airflow velocity of the second air inlet channel 412 is larger than that of the first air inlet channel 411. In the present embodiment, the length direction of the rectangular hole 413 is the length direction of the cross section of the airflow passage 5, and the width direction of the rectangular hole 413 is the width direction of the cross section of the airflow passage 5.

In a specific embodiment, a boss 415 is disposed on a surface of the bottom wall 321 facing the atomizing chamber 4, the air inlet 322 of the atomizing chamber 4 penetrates through the bottom wall 321 and the boss 415, a partition 416 is disposed in the air inlet 322, the partition 416 is parallel to the atomizing surface 25, and the partition 416 divides the air inlet 322 into a first air inlet channel 411 and a second air inlet channel 412.

The first air inlet channel 411 and the second air inlet channel 412 have a common side wall, and an end portion of the common side wall, which is close to the atomizing core 2, is provided with an extension portion 4171, the extension portion 4171 has an air guiding portion 417, and the air guiding portion 417 is used for guiding the air flow of the first air inlet channel 411 to the atomizing face 25. In this embodiment, the common sidewall is a partition 416. Wherein the surface of the extension portion 4171 facing the atomizing surface 25 has a chamfer 4172, the chamfer 4172 serving as the air guide portion 417.

The second air inlet channel 412 is disposed between the first air inlet channel 411 and the inner side surface of the atomizing cavity 4, so that the air flow formed by the second air inlet channel 412 forms a barrier layer between the aerosol carried by the first air inlet channel 411 and the inner side surface of the atomizing cavity 4, so as to avoid the contact between the aerosol carried by the first air inlet channel 411 and the inner side wall of the atomizing cavity 4, and further improve the transmission efficiency of the aerosol. In this embodiment, the top surface of the partition 416 is flush with the top surface of the boss 415, the bottom surface of the partition 416 may be flush with the bottom surface of the boss 415, and the bottom surface of the partition 416 may be higher or lower than the bottom surface of the boss 415.

Referring to fig. 17 and 18, in another embodiment, in order to avoid the air flow of the first air inlet channel 411 from diffusing, so that the air flow in the first air inlet channel 411 carries more aerosol, an air guiding portion 417 is formed at an end of the first air inlet channel 411 near the atomizing surface 25, so that the air flow in the first air inlet channel 411 flows more toward the first end 21 of the atomizing core 2. In a specific embodiment, the end of the partition 416 near the atomizing core 2 is provided with an extension 4171, i.e. the top of the partition 416 extends beyond the boss 415. The extension 4171 has an air guide 417, the air guide 417 for guiding the air flow of the first air inlet channel 411 to the atomizing face 25. The surface of the extension portion 4171 adjacent to the atomizing face 25 has a chamfer 4172, and the chamfer 4172 and the side of the extension portion 4171 facing the atomizing face 25 cooperate to form the air guide portion 417. Wherein chamfer 4172 is lower than the atomizing area 251 of atomizing face 25 to direct the flow of air entering from first inlet channel 411 to the side of atomizing area 251 of atomizing face 25 remote from outlet channel 42. That is, the projection area of the air guide 417 on the atomizing face 25 is at the non-atomizing area 251 and/or the surface of the first seal 6 between the first end 21 and the bottom wall 321 of the atomizing core 2 facing the atomizing chamber 4.

In one embodiment, chamfer 4172 is a bump, the longitudinal section of the bump is a right trapezoid, the opposite and opposite surfaces of the bump to air outlet channel 42 of atomizing chamber 4 are both planar, and the area of the opposite surface of the bump to air outlet channel 42 of atomizing chamber 4 is larger than the area of the opposite surface of the bump to air outlet channel 42 of atomizing chamber 4. The surface of the projection facing the second air inlet passage 412 is also planar and is in the same plane as the surface of the partition 416 facing the second air inlet passage 412, the surface of the projection facing the atomizing core 2 is a slope, and one end of the slope near the air outlet passage 42 is closer to the atomizing core 2 than the other end of the slope. By arranging the extension portion 4171, the air flow of the second air inlet channel 412 can be prevented from diffusing in the atomizing cavity 4, so that the formed barrier layer can better block the aerosol from contacting with the inner side wall of the atomizing surface 25, and the transmission efficiency of the aerosol of the air flow channel 5 is further improved.

In an alternative embodiment the end of the mounting 3 adjacent to the outlet channel 42 communicates with the outlet of the housing 1 via the first seal 6. The first sealing member 6 is provided with the through hole 61, the cross section of the through hole 61 gradually decreases from the end close to the atomizing cavity 4 to the end far away from the atomizing cavity 4, the size of the through hole 61 close to the end face of the atomizing cavity 4 is not smaller than the size of the cross section of the atomizing cavity 4, the size of the end face of the through hole 61 far away from the atomizing cavity 4 is the same as the size of the air outlet serving as the air outlet part on the shell 1, the air outlet is prevented from being impacted by the aerosol carried by the air flow of the first air flow channel 5, and the transmission efficiency of the aerosol of the air flow channel 5 is further improved.

In this embodiment, the atomizing surface 25 of the atomizing core 2 is parallel to the inner side surface of the air flow channel 5, and the air flow in the first air inlet channel 411 carries the aerosol generated by the atomizing surface 25 of the atomizing core 2; by arranging the second air inlet channel 412, the air flow in the second air inlet channel 412 forms a barrier layer between the aerosol carried by the air flow in the first air inlet channel 411 and the inner wall surface of the air flow channel 5, and the barrier layer blocks the aerosol carried by the air flow in the first air inlet channel 411 from impacting the inner wall surface of the air flow channel 5, so that condensation of the aerosol on the inner wall surface of the air flow channel 5 and capture of carried liquid drops by the inner wall surface of the air flow channel 5 are avoided, and further, the transmission efficiency of the aerosol in the air flow channel 5 is improved.

The foregoing is only the embodiments of the present invention, and therefore, the patent protection scope of the present invention is not limited thereto, and all equivalent structures or equivalent flow changes made by the content of the present specification and the accompanying drawings, or direct or indirect application in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. An atomizer, the atomizer comprising:

an airflow channel for transporting aerosol;

the atomizing core is arranged in the airflow channel and is provided with an atomizing surface;

the air flow channel comprises a first air inlet channel and a second air inlet channel which are arranged at intervals, and the air flow of the first air inlet channel is transmitted from one end of the atomization surface, which is close to the first air inlet channel, to the other end of the atomization surface, which is far away from the first air inlet channel, so as to carry the aerosol; the airflow of the second air inlet channel forms a blocking layer between the inner wall of the airflow channel and the aerosol so as to block the aerosol from contacting with the inner wall surface of the airflow channel.

2. The atomizer of claim 1 wherein said atomizing face is parallel to a central axis of said atomizer.

3. The atomizer of claim 2 wherein the air inlet direction of said first air inlet passage and the air inlet direction of said second air inlet passage are both parallel to said atomizing face, said second air inlet passage being disposed on a side of said first air inlet passage remote from said atomizing face.

4. A nebulizer as claimed in claim 3, wherein the airflow rate of the second air intake passage is greater than the airflow rate of the first air intake passage.

5. The atomizer of claim 4 wherein a cross-sectional area of said first air inlet passage is greater than a cross-sectional area of said second air inlet passage.

6. The atomizer of claim 5 wherein said first air inlet passage and/or said second air inlet passage are rectangular holes or circular holes having a rectangular cross section perpendicular to said atomizer central axis.

7. The nebulizer of claim 6, wherein the first air intake channel and the second air intake channel are each rectangular holes with rectangular cross sections perpendicular to the central axis of the nebulizer; the length direction of the rectangular hole is parallel to the atomizing surface.

8. The atomizer of claim 7 wherein said rectangular aperture has a length that is the same as a dimension of said atomizing area of said atomizing face in a length direction of said rectangular aperture.

9. The atomizer of claim 8 wherein said atomizing core comprises a dense substrate having said atomizing face and a liquid suction surface opposite said atomizing face; the dense substrate having a microwell array region having a plurality of microwells for directing an aerosol-forming substrate from the liquid-absorbing surface to the atomizing surface; the micropore array area of the atomization surface is an atomization area of the atomization surface.

10. The nebulizer of claim 8, wherein the rectangular aperture has a length of 2 mm to 4 mm and a width of 0.2 mm to 0.5 mm.

11. The nebulizer of claim 8, wherein the width of the rectangular aperture of the first air intake channel is greater than the width of the rectangular aperture of the second air intake channel.

12. The atomizer of claim 3 wherein said atomizing face cooperates with a portion of said inner wall surface of said airflow passageway to form an atomizing chamber, said first end of said atomizing core is disposed in close proximity to said bottom wall of said atomizing chamber, said atomizing face is disposed opposite said inner wall surface of said atomizing chamber, said bottom wall of said atomizing chamber is disposed opposite said air outlet passageway of said atomizing chamber, and said first and second air inlet passageways are disposed on said bottom wall of said atomizing chamber, said second air inlet passageway being disposed with its airflow direction parallel to said inner wall surface of said atomizing chamber.

13. The atomizer of claim 12 wherein an air inlet is provided in a bottom wall of said atomizing chamber, a boss is provided on a surface of said bottom wall of said atomizing chamber facing said atomizing core, said air inlet extends through said bottom wall and said boss, a partition is provided in said air inlet, said partition is parallel to said atomizing face, said partition divides said air inlet into said first and second air inlet passages.

14. The atomizer of claim 1 wherein said first and second inlet passages have a common side wall, said common side wall having an extension adjacent an end of said atomizing core, said extension having an air guide for guiding an air flow of said first inlet passage to said atomizing face.

15. The atomizer according to claim 14, wherein a surface of said extension facing said atomizing face has a chamfer as said air guide.

16. The atomizer of claim 15 wherein said chamfer is below an atomization zone of said atomizing face to direct an air flow entering from said first air inlet passage to a side of said atomization zone of said atomizing face remote from said air outlet.

17. An electronic atomising device comprising an atomiser as claimed in any one of claims 1 to 16 and a power supply assembly for supplying electrical power to the atomiser.