CN116406835A - Electronic atomization device and atomizer thereof - Google Patents

Abstract

The application provides an electron atomizing device and atomizer thereof, the atomizer includes: an airflow channel for transporting aerosol; the airflow channel comprises an air inlet channel; the atomizing core is arranged in the airflow channel and is provided with an atomizing surface; the port of the air inlet channel, which is close to the atomizing core, is provided with a flow guiding structure, and the flow guiding structure is provided with an arc surface facing away from the atomizing surface; the air flow entering from the air inlet channel is guided to the atomization surface along the cambered surface of the flow guiding structure, and the air flow entering from the air inlet channel carries aerosol and is transmitted to one end of the atomization core far away from the air inlet channel. According to the aerosol generating device, the air flow guiding structure is arranged at the port, close to the atomizing core, of the air inlet channel, the air flow entering the air inlet channel can be guided to the atomizing surface along the cambered surface of the air flow guiding structure, aerosol generated by the atomizing surface is conveniently carried, and then the air flow of the air inlet channel can carry more aerosol, so that the carrying capacity of the air flow to the aerosol is improved.

Description

Electronic atomization device and atomizer thereof

Technical Field

The application relates to the technical field of electronic atomizers, 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 comprises a liquid storage cavity and an atomization assembly, wherein the liquid storage cavity is used for storing a substrate to be atomized, and the atomization assembly is used for heating and atomizing the substrate to be atomized to form aerosol which can be eaten by a smoker; the power supply assembly is used for providing energy to the atomizer. The existing atomizer has poor carrying capacity for aerosol, and aerosol and liquid drops easily enter the air inlet to cause blockage and liquid leakage.

Disclosure of Invention

The technical problem that this application mainly solves is to provide an electron atomizing device and atomizer thereof, solves the not good problem of air current to aerosol's carrying capacity of air inlet channel among the prior art.

In order to solve the technical problems, a first technical scheme adopted by the application is as follows: there is provided an atomizer, the atomizer comprising: an airflow channel for transporting aerosol; the airflow channel comprises an air inlet channel; the atomizing core is arranged in the airflow channel and is provided with an atomizing surface; the port of the air inlet channel, which is close to the atomizing core, is provided with a flow guiding structure, and the flow guiding structure is provided with an arc surface facing away from the atomizing surface; the air flow entering from the air inlet channel is guided to the atomization surface along the cambered surface of the flow guiding structure, and the air flow entering from the air inlet channel carries aerosol and is transmitted to one end of the atomization core far away from the air inlet channel.

The flow guiding structure guides the airflow entering from the air inlet channel to the atomization surface through the coanda effect.

Wherein, the atomizing face sets up with the axis parallel arrangement of atomizer or perpendicular setting.

The air inlet channel comprises a first air inlet channel, and the flow guiding structure is a first bulge arranged on the side surface of the first air inlet channel, which is close to the atomizing core; the first protrusion has an arc surface.

The air inlet channel comprises a first air inlet channel, a first extension part is arranged on the end face, close to the atomizing core, of the side wall forming the first air inlet channel, and the flow guiding structure is a first protrusion arranged on the surface, away from the atomizing core, of the first extension part; the first protrusion has an arc surface.

The end face of the arc face, which is close to one side of the atomization face, is not higher than the end part of the atomization area, which is close to the first air inlet channel.

Wherein, the intersection point of the extension line of the arc surface which passes through the end part of the atomization zone close to the first air inlet channel and is far away from one end of the atomization surface and the plane of the port of the first air inlet channel close to the atomization core is not positioned in the first air inlet channel.

The air inlet channel further comprises a second air inlet channel, and the second air inlet channel is arranged on one side, far away from the atomizing core, of the first air inlet channel; the flow guiding structure further comprises a second bulge, and the second bulge is arranged at a port, close to the atomizing core, of the second air inlet channel; the second bulge is provided with an arc surface, and the arc surface of the second bulge is used for guiding the air flow of the second air inlet channel to one side close to the atomization surface.

The inner side surface of one side of the second air inlet channel, which is close to the first air inlet channel, is provided with a second bulge, and the surface of the second bulge, which is far away from the first air inlet channel, is a cambered surface.

The side wall forming the second air inlet channel is provided with a second extension part close to the end face of the atomizing core, and the flow guiding structure is a second bulge arranged on the surface of the second extension part, which is away from the atomizing core; the surface of the second bulge far away from the second extension part is an arc surface.

The first air inlet channel and/or the second air inlet channel are rectangular holes with rectangular cross sections perpendicular to the central axis of the atomizer, and the length direction of each 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.

Wherein the length of the rectangular hole is 3.5-5 mm, and the width of the rectangular hole is 0.5-0.7 mm.

Wherein the ratio of the width of the rectangular hole to the radius of curvature of the cambered surface of the first protrusion/the second protrusion is less than 1:2.

Wherein, the cooperation of atomizing face and air current passageway's partial internal face forms the atomizing chamber, and the atomizing face sets up with air current passageway's medial surface relatively, and the atomizing core has relative first end and the second end that sets up, and the first end of atomizing core is close to the diapire setting in atomizing chamber, and the second end of atomizing core is close to the air outlet channel setting in atomizing chamber, and first air inlet channel sets up on the diapire in atomizing chamber.

Wherein, be provided 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.

Wherein, be equipped with the partition portion in the inlet port, partition portion and atomizing face parallel arrangement, the atomizing face divide into first inlet port and second inlet port with the inlet port, and first inlet port is as first inlet channel, and second inlet port is as second inlet channel, and the partition portion is equipped with the second extension, and one side that the atomizing face was kept away from to the second extension is equipped with the second arch, and the surface that the second extension was kept away from to the second arch is the cambered surface.

Wherein the second protrusion, the second extension and the partition are integrally formed.

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 compact substrate is provided with a micropore array area, and the micropore array area is provided with a plurality of micropores for guiding the substrate to be atomized from the liquid suction surface to the atomization surface; the micropore array area of the atomizing surface is an atomizing area of the atomizing surface.

In order to solve the technical problems, a second technical scheme adopted by the application 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 this application are: 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 airflow channel comprises an air inlet channel; the atomizing core is arranged in the airflow channel and is provided with an atomizing surface; the port of the air inlet channel, which is close to the atomizing core, is provided with a flow guiding structure, and the flow guiding structure is provided with an arc surface facing away from the atomizing surface; the air flow entering from the air inlet channel is guided to the atomization surface along the cambered surface of the flow guiding structure, and the air flow entering from the air inlet channel carries aerosol and is transmitted to one end of the atomization core far away from the air inlet channel. According to the aerosol generating device, the air flow guiding structure is arranged at the port, close to the atomizing core, of the air inlet channel, the air flow entering the air inlet channel can be guided to the atomizing surface along the cambered surface of the air flow guiding structure, aerosol generated by the atomizing surface is conveniently carried, and then the air flow of the air inlet channel can carry more aerosol, so that the carrying capacity of the air flow to the aerosol is improved.

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 of the atomizer provided herein;

fig. 3 is a schematic structural view of an atomizing core in the electronic atomizing device provided in the present application;

fig. 4 is a schematic structural view of an upper base in the electronic atomization device provided by the application;

fig. 5 is a schematic structural view of a connector in the electronic atomization device provided by the application;

fig. 6 is a schematic structural diagram of a lower base in the electronic atomization device provided by the application;

FIG. 7 is a schematic view of a first embodiment of the atomizer provided herein;

FIG. 8 is a schematic view of a second embodiment of a nebulizer provided herein;

FIG. 9 is a schematic view of an embodiment 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. 9;

FIG. 11 is a schematic view of the structure of a different atomizer;

FIG. 12 is a schematic view of a third embodiment of a nebulizer provided herein;

FIG. 13 is a schematic illustration of a simulation of the delivery of aerosol through the airflow passage of the atomizer provided in FIG. 12;

fig. 14 is a schematic view of a fourth embodiment of a nebulizer provided herein;

fig. 15 is a schematic view of a longitudinal section of the first protrusion and/or the second protrusion provided in the present application perpendicular to the atomizing face.

In the figure: an electronic atomizing device 100; an atomizer 101; a power supply assembly 102; 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 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 connecting member 315; window 3151; a lower base 32; a bottom wall 321; an air inlet hole 322; a first air inlet aperture 3221; a second air inlet aperture 3222; a rectangular hole 323; a boss 324; a partition 325; a first extension 326; a second extension 327; a sump 328; a housing chamber 33; an atomizing chamber 4; an intake passage 41; a first intake passage 411; a second intake passage 412; a flow guiding structure 42; a first protrusion 421; a second protrusion 422; an outlet channel 43; an air flow passage 5; a first seal 6; a second seal 7.

Detailed Description

The following describes the embodiments of the present application 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 application.

The following description of the technical solutions in the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

The terms "first," "second," "third," and the like in this application are used for descriptive purposes only and are not to be construed as indicating or implying 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 application, 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 the embodiments of the present application 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 present application. 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 applicant of the application researches find 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, so that the carrying capacity of the aerosol to the air flow entering from the air inlet is poor, the conveying efficiency of the aerosol is reduced, the retention time of the aerosol in an atomization cavity is long, and liquid drops are easy to generate by the aerosol. The liquid drops enter the air inlet, and can cause the air inlet to be blocked and leak. 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 can be used for atomizing a substrate to be atomized. 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 a substrate to be atomized and atomizing the substrate to be atomized to form aerosol which can be absorbed by a user, wherein the substrate to be atomized can be liquid substrates such as liquid medicine, plant grass and leaf liquid and the like; the atomizer 101 may be used in different fields, such as medical, cosmetic, electro-aerosolization, etc. The power supply assembly 102 includes a battery, 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 a substrate to be atomized to form aerosol; 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 electronic atomization device 100 further includes other components of the existing electronic atomization device 100, such as a microphone, 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 the atomizer 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 the substrate to be atomized. 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 in the electronic atomizing device 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 directly contacted with the substrate to be atomized in the liquid storage cavity 15, and the atomizing surface 25 is used for atomizing the substrate to be atomized to obtain aerosol. Dense substrate 23 has a micropore array region having a plurality of micropores for directing a substrate to be atomized from liquid suction surface 26 to atomization 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 to 6, fig. 4 is a schematic structural diagram of an upper base in the electronic atomization device provided by the present application; fig. 5 is a schematic structural view of a connector in the electronic atomization device provided by the application;

fig. 6 is a schematic structural diagram of a lower base in the electronic atomization device provided by the 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 part of the inner side wall of the installation space 14, and 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 in sealed communication with the air vent 314 through the first sealing member 6, so as to avoid air leakage between the air guide channel 13 and the air vent 314 of the upper seat 31. 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 piece 7, so that the matrix to be atomized in the liquid storage cavity 15 is prevented from leaking. In a specific embodiment, the second sealing member 7 is a sealing ring, the end surface far away from the liquid storage cavity 15 is provided with a groove, the atomization core 2 is embedded in the groove of the second sealing member 7, and the atomization surface 25 of the atomization 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 another embodiment, the upper base 31 further includes a connector 315, and the connector 315 is used to mount the atomizing core 2 to the lower liquid hole 313, as shown in fig. 5. The connecting member 315 is provided with a window 3151, and the window 3151 is disposed corresponding to the liquid-discharging hole 313, so as to convey the substrate to be atomized to the liquid-absorbing surface 26 of the atomizing core 2. The atomizing core 2 is clamped in the liquid discharging hole 313 through the connecting piece 315, so that the atomizing surface 25 of the atomizing core 2 is flush with at least one inner wall surface of the accommodating cavity 33.

In this embodiment, as shown in fig. 4, the upper seat 31 includes a second annular sidewall 311 and a second top wall 312 connected to one end of the second annular sidewall 311, the vent 314 is disposed on the second top wall 312, and the lower liquid hole 313 is disposed on the second top wall 312 or the second annular sidewall 311. As shown in fig. 6, 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 by the connecting portion to form the accommodating cavity 33.

The atomizing surface 25 cooperates with the inner wall surface of the housing chamber 33 to form the atomizing chamber 4. 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 channel 41 and an outlet channel 43. The atomizing chamber 4 communicates with the air guide passage 13 through the air outlet passage 43. The air inlet channel 41 is used for transmitting an external air flow to the atomizing chamber 4 so as to carry aerosol into the air outlet channel 43 through the air flow. The air inlet channel 41, the atomizing chamber 4, the air outlet channel 43 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 of the air flow channel 5, and one end of the air guide channel 13 away from the air outlet channel 43 is used as an air outlet end of the air flow channel 5.

In this embodiment, a diversion structure 42 is arranged at the port of the air inlet channel 41 near the atomizing core 2, and the diversion structure 42 has a cambered surface facing away from the atomizing surface 25; the air flow entering from the air inlet channel 41 is guided to the atomization surface 25 along the cambered surface of the flow guiding structure 42, and the air flow entering from the air inlet channel 41 carries aerosol and is transmitted to one end of the atomization core 2 far away from the air inlet channel 41. In this embodiment, the flow guiding structure 42 guides the air flow entering from the air inlet channel 41 to the atomizing face 25 by the coanda effect to transport the aerosol heated and atomized by the atomizing face 25 to the air outlet channel 43 of the atomizing chamber 4. Wherein the air inlet channel 41 is arranged on the side wall and/or the bottom wall 321 of the atomizing chamber 4. The coanda effect is the tendency of a fluid (water or air flow) to deviate from the original flow direction and instead flow with a convex object surface. When there is surface friction (also known as fluid viscosity) between the fluid and the surface of the object over which it flows, the fluid will flow along the surface of the object as long as the curvature is not large. In this embodiment, it is ensured that the ratio of the fluid width w to the radius of curvature r of the bulge is less than 0.5, i.e. w/r < 0.5.

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 air inlet channel 41 is arranged near the first end 21 of the atomizing core 2, and the air flow of the air inlet channel 41 firstly reaches the first end 21 of the atomizing core 2 along the cambered surface of the flow guiding structure 42, and then is transmitted from the first end 21 to the second end 22 of the atomizing core 2, so that the aerosol generated by the atomizing surface 25 of the atomizing core 2 is transmitted to the air outlet channel 43 of the atomizing cavity 4.

The atomizing surface 25 of the atomizing core 2 forms a preset angle with the central axis of the atomizer 101. The preset angle is the air flow direction along the air inlet channel 41, and the included angle between the atomizing surface 25 and the central axis of the atomizer 101 is 0 ° to 90 °. That is, the central axis of the air intake passage 41 may be parallel to the atomizing face 25. The distance between the central axis of the air intake passage 41 and the atomizing surface 25 may be gradually reduced along the air flow direction of the air intake passage 41.

In a preferred embodiment, the atomizing face 25 of the atomizing core 2 is disposed parallel to or perpendicular to the central axis of the atomizer 101.

When the atomizing surface 25 of the atomizing core 2 is perpendicular to the central axis of the atomizer 101, the lower liquid hole 313 is disposed on the second top wall 312 of the upper base 31, and the lower liquid hole 313 on the second top wall 312 is spaced from the air vent 314. The intake passage 41 is provided on the second annular side wall 311. Specifically, the first end 21 of the atomizing core 2 is disposed adjacent to the sidewall of the receiving chamber 33, and the second end 22 of the atomizing core 2 is disposed adjacent to the air outlet channel 43. Specifically, the air intake passage 41 includes a first air intake passage 411, and the first air intake passage 411 is provided on a side wall of the atomizing chamber 4.

When the atomizing surface 25 of the atomizing core 2 is parallel to the central axis of the atomizer 101, the lower liquid hole 313 is disposed on the second annular side wall 311 of the upper base 31, and the air vent 314 is disposed on the second top wall 312 of the upper base 31; the intake passage 41 is provided on the bottom wall 321 of the lower housing 32. Specifically, the first end 21 of the atomizing core 2 is disposed adjacent to the bottom wall 321 of the lower housing 32, and the second end 22 of the atomizing core 2 is disposed adjacent to the vent hole 314 of the upper housing 31. Specifically, the air intake passage 41 includes a first air intake passage 411, and the first air intake passage 411 is provided on the bottom wall 321 of the atomizing chamber 4.

Referring to fig. 7 to 10, fig. 7 is a schematic view of a first embodiment of the atomizer provided in the present application; FIG. 8 is a schematic view of a second embodiment of a nebulizer provided herein; FIG. 9 is a schematic view of an embodiment of the atomizer provided in FIG. 8; fig. 10 is a schematic illustration of a simulation of the delivery of aerosol through the airflow path of the atomizer provided in fig. 9.

Specifically, the air inlet channel 41 includes a first air inlet channel 411, and a diversion structure 42 is disposed at a port of the first air inlet channel 411 near the atomizing core 2. The flow guiding structure 42 includes a first protrusion 421, where the first protrusion 421 has an arc surface, and at least a surface of the first protrusion 421 facing away from the atomizing surface 25 is an arc surface. Wherein, the end surface of the first protrusion 421 near the atomizing chamber 4 is not lower than the plane where the port of the first air inlet channel 411 near the atomizing chamber 4 is located, and is not higher than the plane where the end of the atomizing area 251 near the lower base 32 of the atomizing surface 25 is located. Through setting up the first arch 421 that has the cambered surface, when making the air current of first inlet channel 411 be close to atomizing face 25 along the cambered surface, the cambered surface of first arch 421 gives the normal velocity of air current perpendicular to atomizing face 25, and then suppresses the air current of first inlet channel 411 and spread in atomizing chamber 4, reduces the aerosol that carries in the air current and the inner wall surface contact and the collision of atomizing chamber 4, makes the aerosol more pass through air current transmission to atomizing chamber 4's air outlet channel 43, improves the transmission efficiency of aerosol.

In an embodiment, as shown in fig. 7, the first protrusion 421 is disposed in the first air inlet channel 411, and the arc surface of the first protrusion 421 is disposed opposite to the atomizing core 2. In a specific embodiment, an air inlet 322 is disposed on the bottom wall 321 of the lower base 32, the inner side of the air inlet 322 near the atomizing surface 25 has a first protrusion 421, and the end surface of the first protrusion 421 near the atomizing chamber 4 is not lower than the plane of the air inlet 322 near the port of the atomizing chamber 4. Wherein the first protrusion 421 is integrally formed with an inner wall surface forming the first air intake passage 411.

In another embodiment, as shown in fig. 6, 8 and 9, the end surface of the side wall forming the first air inlet channel 411, which is close to the atomizing core 2, is provided with a first extension 326, and the surface of the first extension 326, which is away from the atomizing core 2, is provided with a first protrusion 421; the first protrusion 421 has an arc surface. Specifically, in order to enable the air flow entering the first air inlet channel 411 to also carry the aerosol generated by the atomization zone 251 near the first end 21 of the atomizing core 2 to the air outlet channel 43 of the atomizing chamber 4, the end surface of the cambered surface of the first protrusion 421 away from the air inlet 322 is not higher than the plane where the end of the atomization zone 251 of the atomizing surface 25 near the lower base 32 is located. Wherein the first protrusion 421 is flush with an end surface of the first extension 326 remote from the first air intake passage 411. The tangent line of the cambered surface vertex of the first protrusion 421 is located in the first air inlet channel 411 and is parallel to the central axis of the first air inlet channel 411. Wherein the first protrusion 421, the first extension 326 and the bottom wall 321 of the lower housing 32 are integrally formed.

Referring to fig. 11, fig. 11 is a schematic diagram of a different atomizer. Fig. 11 (a) and 11 (b) are schematic diagrams of the structure of the atomizer in two comparative examples, and fig. 11 (c) is a schematic diagram of the structure of the atomizer of the present application. As shown in fig. 11 (a), the port of the first air inlet channel 411 is not provided with the first protrusion 421 of the present application, and no other structure is provided for air guiding, so that the air flow entering from the first air inlet channel 11 is parallel to the atomizing surface 25 of the atomizing core 2, and the droplets generated by condensation of the aerosol in the atomizing cavity 4 easily fall into the first air inlet channel 411; as shown in fig. 11 (b), the first inlet channel 411 is provided with the first protrusion 421 of the present application at the port, but the side far from the atomizing surface 25 is provided with the air guiding structure which guides the air flow entering from the first inlet channel 11 to the atomizing surface 25, however, when the end of the first inlet channel 411 near the atomizing core 2 is provided with the air guiding structure, the droplets generated by condensation fall into the first inlet channel 411 more easily. As shown in fig. 11 (c), the first protrusion 421 provided in this embodiment can prevent droplets generated by condensation of aerosol in the atomizing chamber 4 from falling into the first air inlet channel 411.

Specifically, in order to make the air flow in the first air intake passage 411 carry more aerosol, and to avoid droplets resulting from condensation of aerosol falling into the first air intake passage 411. The intersection point of the tangent line L of the arc surface of the first protrusion 421 near the atomizing surface 25 and the plane of the atomizing surface 25 is not more than the end of the atomizing area 251 near the first air inlet channel 411. And the extension line of the tangent line L is located at the edge of the first air inlet channel 411 facing the port of the atomizing chamber 4 away from the atomizing core 2 or between the first air inlet channel 411 and the inner side surface of the atomizing chamber 4 away from the atomizing surface 25. That is, the intersection point of the tangent line of the arc surface of the first protrusion 421 near the atomizing surface 25 and the plane of the atomizing surface 25 is not more than the end of the atomizing area 251 of the atomizing surface 25 near the first end 21 of the atomizing core 2. Specifically, the intersection point of the tangent line of the arc surface of the first protrusion 421 near the atomizing surface 25 and the plane of the atomizing surface 25 may be located at the end of the atomizing area 251 near the first air inlet channel 411, or may be located between the atomizing area 251 and the bottom wall 321 of the lower seat 32. The extension line of the tangential line may be located at the edge of the port of the first air inlet channel 411 facing the atomizing chamber 4 away from the atomizing core 2, or may be located between the first air inlet channel 411 and the inner side surface of the atomizing chamber 4 away from the atomizing surface 25. That is, the intersection point of the extension line of the end of the tangent line away from the atomizing surface 25 and the plane of the port of the first air intake passage 411 near the atomizing chamber 4 is not located in the port of the first air intake passage 411, so as to avoid the liquid drop formed by liquefying the aerosol from falling into the first air intake passage 411.

In a specific embodiment, the first air inlet channel 411 is a rectangular hole 323 with a rectangular cross section perpendicular to the central axis of the atomizer 101, and the length direction of the rectangular hole 323 is parallel to the atomizing surface 25. An extension line of a tangent line of the cambered surface of the first bulge 421, which is close to one side of the atomizing surface 25, passes through the rectangular hole 323 and faces to a long side, far away from the atomizing surface 25, of a port on one side of the atomizing cavity 4, and the extension line of the tangent line is mutually perpendicular to the long side of the rectangular hole 323. In another embodiment, the intersection point of the extension line of the tangent line of the arc surface of the first protrusion 421 near the atomizing surface 25 and the plane of the port of the first air intake passage 411 facing the atomizing chamber 4 is located between the rectangular hole 323 and the inner side surface of the atomizing chamber 4 far from the atomizing surface 25. Wherein, the bottom wall 321 of the lower base 32 is provided with a protruding portion 324, the air inlet 322 penetrates through the bottom wall 321 and the protruding portion 324 of the lower base 32, and the outer side surface of the protruding portion 324 and a part of the inner wall surface of the atomizing cavity 4 cooperate to form a liquid collecting tank 328 to accommodate liquid drops formed by liquefying aerosol, so as to avoid the problem that the liquid drops fall into the air inlet 322 to cause the blockage and leakage of the air inlet 322.

Referring to fig. 12 and 13, fig. 12 is a schematic view of a third embodiment of a nebulizer provided in the present application; fig. 13 is a schematic illustration of a simulation of the delivery of aerosol through the airflow path of the atomizer provided in fig. 12.

Optionally, the air inlet channel 41 further includes a second air inlet channel 412, the second air inlet channel 412 is disposed on the bottom wall 321 of the atomizing chamber 4, and the second air inlet channel 412 is disposed on a side of the first air inlet channel 411 away from the atomizing core 2. The port of the second air inlet channel 412 near the atomizing core 2 is provided with a flow guiding structure 42, the flow guiding structure 42 further comprises a second protrusion 422, and the second protrusion 422 has an arc surface. The cambered surface of the second protrusion 422 is disposed opposite to the first air inlet channel 411, and is used for guiding the air flow of the second air inlet channel 412 to the atomizing surface 25, so as to facilitate the aerosol of the atomizing surface 25 to be transmitted to the air outlet channel 43 of the atomizing cavity 4, and the aerosol in the low-pressure area between the first air inlet channel 411 and the second air inlet channel 412 can be carried to the air outlet channel 43 of the atomizing cavity 4, so that the transmission efficiency of the aerosol is improved. Wherein, the end of the arc surface of the second protrusion 422 near the atomizing chamber 4 is not lower than the plane of the port of the second air inlet passage 412 near the atomizing chamber 4, and is not higher than the plane of the atomizing area 251 of the atomizing surface 25 near the end of the lower base 32. By arranging the second protrusion 422 with the arc surface, when the airflow of the second air inlet channel 412 approaches the atomizing surface 25 along the arc surface, the arc surface of the second protrusion 422 gives the airflow a normal speed perpendicular to the atomizing surface 25, so that the airflow of the second air inlet channel 412 can carry the aerosol retained in the negative pressure area between the first air inlet channel 411 and the second air inlet channel 412, and the transmission efficiency of the aerosol is increased. The airflow in the second air inlet channel 412 can also inhibit the airflow in the first air inlet channel 411 from diffusing in the atomization cavity 4, so as to reduce contact and collision between the aerosol in the airflow and the inner wall surface of the atomization cavity 4, and further improve the transmission efficiency of the aerosol by transmitting the aerosol to the air outlet channel 43 of the atomization cavity 4 through the airflow.

In an embodiment, the second protrusion 422 is disposed on an inner side surface of the second air inlet channel 412 near the atomizing core 2, and an arc surface of the second protrusion 422 is disposed opposite to the atomizing core 2. In a specific embodiment, the bottom wall 321 of the lower base 32 is provided with an air inlet 322, and the surface of the bottom wall 321 of the atomizing chamber 4 facing the atomizing core 2 is provided with a protrusion 324, and the air inlet 322 penetrates through the bottom wall 321 and the protrusion 324 of the lower base 32. The air inlet 322 is provided with a partition portion 325, the partition portion 325 is arranged parallel to the atomization surface 25, the atomization surface 25 divides the air inlet 322 into a first air inlet 3221 and a second air inlet 3222, the first air inlet 3221 is used as a first air inlet channel 411, and the second air inlet 3222 is used as a second air inlet channel 412. The second air inlet 3222 is disposed on a side of the first air inlet 3221 away from the atomizing core 2, and only an inner side surface of the second air inlet 3222, which is close to the first air inlet 3221, is provided with a second protrusion 422, wherein a surface of the second protrusion 422, which is far away from the first air inlet 3221, is a cambered surface. Wherein, the end surface of the arc surface of the second protrusion 422, which is close to the atomizing chamber 4, is not lower than the surface of the bottom wall 321 of the lower seat 32, which faces the atomizing chamber 4, and is not higher than the plane of the end of the atomizing area 251, which is close to the lower seat 32.

In a specific embodiment, as shown in fig. 12, the end surface of the side wall of the second air inlet channel 412, which is close to the atomizing core 2, is provided with a second extension portion 327, only one side of the second extension portion 327, which is far away from the atomizing core 2, is provided with a second protrusion 422, and the cambered surface of the second protrusion 422 is opposite to the second extension portion 327. Specifically, a longitudinal section of the surface of the second protrusion 422 away from the second extension 327 perpendicular to the atomizing face 25 is an arc. In a specific embodiment, the partition 325 is provided with a second extension portion 327, and a side of the second extension portion 327 facing the second air intake passage 412 is provided with a second protrusion 422, and a surface of the second protrusion 422 facing away from the first air intake passage 411 is an arc surface. Wherein, the surface of the cambered surface of the second protrusion 422 away from the second air inlet 3222 is not higher than the plane of the end of the atomizing area 251 close to the lower seat 32. In the present embodiment, the second protrusion 422, the second extension 327, and the partition 325 are integrally formed.

Referring to fig. 14, fig. 14 is a schematic view of a fourth embodiment of the atomizer provided herein. In another embodiment, the first air inlet channel 411 is provided with a first protrusion 421 near the port of the atomizing core 2; the second air inlet passage 412 is provided with a second projection 422 near the port of the atomizing core 2. The position and structure of the second protrusion 422 disposed in the second air intake passage 412 may be the same as or different from the position and structure of the first protrusion 421 disposed in the first air intake passage 411, and the present invention is not limited thereto.

In a specific embodiment, the first air inlet channel 411 and/or the second air inlet channel 412 are rectangular holes 323 with rectangular cross sections perpendicular to the central axis of the atomizer 101, and the length direction of the rectangular holes 323 is parallel to the atomizing surface 25. Referring to fig. 15, fig. 15 is a schematic structural view of a longitudinal section of the first protrusion and/or the second protrusion perpendicular to the atomizing surface. In a specific embodiment, the longitudinal section of the first protrusion 421 and/or the second protrusion 422 perpendicular to the atomizing surface 25 is semicircular, as shown in fig. 15 (b); or may be a quadrangular structure with one side being an arc line, as shown in fig. 15 (a). When the longitudinal section of the first protrusion 421 and/or the second protrusion 422 perpendicular to the atomizing surface 25 is in a quadrilateral structure, one side far away from the atomizing surface 25 is an arc, two sides connected with two ends of the arc are straight lines perpendicular to the atomizing surface 25, and the side opposite to the arc is a straight line.

In one embodiment, the aerosol delivery efficiency is improved, and the length of the rectangular aperture 323 is the same as the size of the atomizing area 251 of the atomizing face 25 in the length direction of the rectangular aperture 323. The length of the rectangular hole 323 is 3.5 mm to 5 mm, and the width of the rectangular hole 323 is 0.5 mm to 0.7 mm. In this embodiment, in order to facilitate more airflow of the first air intake passage 411 and/or the second air intake passage 412 to be directed to the atomizing face 25 of the atomizing core 2, the ratio of the width w of the rectangular hole 323 to the radius of curvature r of the arc surface of the first projection 421 or the second projection 422 is less than 1:2.

In an electronic atomization device provided in this embodiment, an atomizer includes: an airflow channel for transporting aerosol; the airflow channel comprises an air inlet channel; the atomizing core is arranged in the airflow channel and is provided with an atomizing surface; the port of the air inlet channel, which is close to the atomizing core, is provided with a flow guiding structure, and the flow guiding structure is provided with an arc surface facing away from the atomizing surface; the air flow entering from the air inlet channel is guided to the atomization surface along the cambered surface of the flow guiding structure, and the air flow entering from the air inlet channel carries aerosol and is transmitted to one end of the atomization core far away from the air inlet channel. According to the aerosol generating device, the air flow guiding structure is arranged at the port, close to the atomizing core, of the air inlet channel, the air flow entering the air inlet channel can be guided to the atomizing surface along the cambered surface of the air flow guiding structure, aerosol generated by the atomizing surface is conveniently carried, and then the air flow of the air inlet channel can carry more aerosol, so that the carrying capacity of the air flow to the aerosol is improved.

The foregoing is only the embodiments of the present application, and therefore, the patent protection scope of the present application is not limited thereto, and all equivalent structures or equivalent processes using the contents of the present application specification and the drawings are included in the patent protection scope of the present application, or directly or indirectly applied to other related technical fields.

Claims (20)

1. An atomizer, the atomizer comprising:

an airflow channel for transporting aerosol; the airflow passage includes an intake passage;

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

a diversion structure is arranged at a port of the air inlet channel, which is close to the atomization core, and the diversion structure is provided with an arc surface facing away from the atomization surface; and the air flow entering from the air inlet channel is guided to the atomization surface along the cambered surface of the flow guiding structure, and the air flow entering from the air inlet channel carries the aerosol to be transmitted to one end of the atomization core far away from the air inlet channel.

2. The atomizer of claim 1 wherein said flow directing structure directs an air flow entering from said air inlet passage to said atomizing face by a coanda effect.

3. The nebulizer of claim 1, wherein the nebulizing surface is disposed parallel to or perpendicular to a central axis of the nebulizer.

4. The atomizer of claim 1 wherein said air inlet passage comprises a first air inlet passage, said flow directing structure being a first protrusion disposed on a side of said first air inlet passage adjacent said atomizing core; the first protrusion has the cambered surface.

5. The atomizer of claim 1 wherein said air inlet passage comprises a first air inlet passage, a side wall forming said first air inlet passage having a first extension adjacent an end face of said atomizing core, said flow directing structure being a first protrusion disposed on a surface of said first extension facing away from said atomizing core; the first protrusion has the cambered surface.

6. The atomizer of claim 5 wherein an end surface of said arcuate surface adjacent said atomizing surface is not higher than an end of said atomizing area adjacent said first air inlet passage.

7. The atomizer of claim 6 wherein an intersection of an extension of an end of said arcuate surface passing through said atomizing area proximate said first air inlet passage distal said atomizing surface and a plane of said first air inlet passage proximate said atomizing core port is not within said first air inlet passage.

8. The atomizer of claim 1, 4 or 5 wherein said air inlet passage further comprises a second air inlet passage disposed on a side of said first air inlet passage remote from said atomizing core; the flow guiding structure further comprises a second bulge, and the second bulge is arranged at a port, close to the atomization core, of the second air inlet channel; the second bulge is provided with the cambered surface, and the cambered surface of the second bulge is used for guiding the airflow of the second air inlet channel to one side close to the atomization surface.

9. The atomizer of claim 8 wherein said second inlet passage is provided with said second projection on an inner side of said second inlet passage adjacent said first inlet passage, and wherein a surface of said second projection remote from said first inlet passage is said arcuate surface.

10. The atomizer of claim 8 wherein an end face of a side wall forming said second air inlet passage adjacent said atomizing core has a second extension, said flow directing structure being a second protrusion disposed on a surface of said second extension facing away from said atomizing core; the surface of the second protrusion, which is far away from the second extension part, is the cambered surface.

11. The nebulizer of claim 9 or 10, wherein the first air inlet channel and/or the second air inlet channel is a rectangular hole with a rectangular cross section perpendicular to the central axis of the nebulizer, and the length direction of the rectangular hole is parallel to the nebulizing surface.

12. The atomizer of claim 11 wherein a length of said rectangular aperture is the same as a size of an atomizing area of said atomizing face in a length direction of said rectangular aperture.

13. The nebulizer of claim 11, wherein the rectangular aperture has a length of 3.5 mm to 5 mm and a width of 0.5 mm to 0.7 mm.

14. The atomizer of claim 11 wherein a ratio of a width of said rectangular aperture to a radius of curvature of an arcuate surface of said first projection/said second projection is less than 1:2.

15. The atomizer of claim 9 or 10 wherein said atomizing face cooperates with a portion of said inner wall surface of said air flow passage to form an atomizing chamber, said atomizing face being disposed opposite said inner wall surface of said air flow passage, said atomizing core having oppositely disposed first and second ends, and said atomizing core first end being disposed adjacent said atomizing chamber bottom wall, said atomizing core second end being disposed adjacent said atomizing chamber air outlet passage, said first air inlet passage being disposed on said atomizing chamber bottom wall.

16. The atomizer of claim 15 wherein an air inlet is provided in a bottom wall of said atomizing chamber, a surface of said bottom wall of said atomizing chamber facing said atomizing core being provided with a boss, said air inlet extending through said bottom wall and said boss.

17. The atomizer of claim 16 wherein a divider is disposed in said inlet aperture, said divider being disposed parallel to said atomizing surface, said atomizing surface dividing said inlet aperture into a first inlet aperture and a second inlet aperture, said first inlet aperture being said first inlet passage, said second inlet aperture being said second inlet passage, said divider being provided with a second extension, said second extension being provided with said second protrusion on a side thereof remote from said atomizing surface, said second protrusion being said arcuate surface on a surface thereof remote from said second extension.

18. The atomizer of claim 17 wherein said second boss, said second extension and said divider are integrally formed.

19. The atomizer of claim 2 wherein said atomizing core comprises a dense substrate having said atomizing face and a liquid suction surface opposite said atomizing face; the dense substrate has a micropore array region with a plurality of micropores for guiding a substrate to be atomized 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.

20. An electronic atomising device comprising an atomiser as claimed in any one of claims 1 to 19 and a power supply assembly for supplying electrical power to the atomiser.

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