CN115779205A - Atomization assembly and atomization device - Google Patents

Abstract

The invention relates to an atomization assembly and an atomization device, wherein the atomization assembly is provided with a liquid storage shell of a liquid storage bin; the inner liquid inlet pipe is accommodated in the liquid storage bin and is constructed to form an atomization cavity, and an air inlet channel and an air outlet channel which are communicated between the atomization cavity and the outside of the atomization assembly; the atomizing core is accommodated in the atomizing cavity; wherein, the inner wall of interior feed liquor pipe and the atomizing core between the definition form first passageway of taking a breath, first passageway of taking a breath intercommunication inlet channel and stock solution storehouse, and/or first passageway of taking a breath intercommunication outlet channel and stock solution storehouse. Above-mentioned atomization component, the hole and the fit-up gap that rely on base member self form the passageway of taking a breath in comparing in prior art, and the size of first passageway of taking a breath and interior feed liquor pipe scavenge port of taking a breath in this application is fixed to can form stable pressure of taking a breath.

Description

Atomization components and atomization devices

technical field

The invention relates to the technical field of atomization, in particular to an atomization component and an atomization device.

Background technique

Aerosol is a colloidal dispersion system formed by dispersing small solid or liquid particles and suspending them in a gaseous medium. Since aerosols can be absorbed by the human body through the respiratory system, aerosol substrates such as medical liquids can be heated to produce aerosols Nebulization devices of the company are used in different fields such as medical treatment to deliver an inhalable aerosol to the user.

In the existing atomization device, the aerosol matrix is usually stored in the liquid storage bin. During the working process of the atomization device, the aerosol matrix is absorbed and consumed by the matrix, and negative pressure will gradually be generated in the liquid storage bin to affect the The speed of supplying liquid to the atomizing core produces the phenomenon of poor liquid flow, which makes the atomizing core cause dry burning because the liquid consumption rate is faster than the supply rate.

In order to avoid dry burning of the atomizing core, the air exchange channel is usually formed by using the pores of the matrix in the atomizing core and the assembly gap of the atomizing device. When the liquid in the liquid storage tank decreases, the outside air will enter the liquid storage tank through the ventilation channel and fill the space vacated by the consumed liquid, so as to prevent the liquid storage tank from being blocked due to negative pressure and Dry burning phenomenon.

However, it was found in the research that the size of the ventilation channel formed by the pores of the substrate and the assembly gap of the atomization device is greatly affected by the size tolerance of the parts, the assembly tolerance and the compression of the substrate, and the size of the cross-sectional area of the ventilation channel is stable. The stability is low, resulting in poor consistency of the ventilation pressure of the atomization device. When the air exchange channel is too narrow and the air exchange pressure is too high, the gas cannot enter the liquid storage chamber in time to balance the air pressure, resulting in dry burning of the atomizer. However, when the ventilation channel is too large and the ventilation pressure is too small, the aerosol matrix in the liquid storage tank is easy to leak through the ventilation channel, especially in the suction or negative pressure reliability test, which will aggravate this phenomenon, and then cause fog The liquid leakage of the atomization device has brought inconvenience to the use of the atomization device.

Contents of the invention

Based on this, it is necessary to address the problem of poor consistency of the ventilation pressure of the atomization device, and provide an atomization assembly and an atomization device, which can achieve the technical effect of improving the consistency of the ventilation pressure.

According to one aspect of the present application, an atomization assembly is provided, comprising:

a liquid storage housing with a liquid storage bin;

The inner liquid inlet pipe is accommodated in the liquid storage bin, and the inner liquid inlet pipe includes an air inlet passage, an atomizing core storage chamber and an air outlet passage connected to each other; the air inlet passage and the air outlet passage are respectively connected to the external air communication to the atomizing assembly; and

The atomizing core is accommodated in the atomizing core housing cavity; the inner wall of the atomizing core forms an atomizing cavity, and the atomizing cavity communicates with the air inlet channel and the air outlet channel;

Wherein, a first ventilation channel is defined between the inner wall of the inner liquid inlet pipe and the atomization core, and the first ventilation channel communicates with the air intake channel and the liquid storage bin, and/or the The first air exchange channel communicates with the air outlet channel and the liquid storage chamber.

In one of the embodiments, the inner liquid inlet pipe includes an inner liquid inlet pipe top wall, an inner liquid inlet pipe bottom wall, and an inner inlet pipe connected to the inner liquid inlet pipe top wall and the inner liquid inlet pipe bottom wall. The side wall of the liquid pipe, the air inlet passage is opened on the bottom wall of the inner liquid inlet pipe, the air outlet passage is opened on the top wall of the inner liquid inlet pipe, and the diameter of the air outlet passage or the inlet passage is less than the diameter of the atomizing core housing cavity;

Wherein, the atomizing core is located between the top wall of the inner liquid inlet pipe and the bottom wall of the inner liquid inlet pipe, and the atomizing core is connected to the top wall of the inner liquid inlet pipe and/or the inner liquid inlet pipe. The bottom wall of the tube is arranged at intervals to define and form the first ventilation channel.

In one of the embodiments, the atomizing core is provided with an inwardly recessed groove on one side surface of the inner liquid inlet pipe top wall and/or the inner liquid inlet pipe bottom wall, and the groove is The groove wall is jointly defined with the top wall of the inner liquid inlet pipe and/or the bottom wall of the inner liquid inlet pipe to form the first ventilation channel.

In one of the embodiments, the top wall of the inner liquid inlet pipe and/or the bottom wall of the inner liquid inlet pipe is provided with a ventilation groove on a side surface facing the housing cavity of the atomizing core.

In one of the embodiments, the inner liquid inlet pipe is provided with an inner liquid inlet pipe ventilation hole, and the inner liquid inlet pipe ventilation hole communicates with the first ventilation channel and the liquid storage bin.

In one of the embodiments, one end of the ventilation hole of the inner liquid inlet pipe is connected to the first ventilation channel, and the other end of the ventilation hole of the inner liquid inlet pipe is along the radial direction of the inner liquid inlet pipe. penetrating to the outer surface of the inner liquid inlet pipe.

In one of the embodiments, the air exchange hole of the inner liquid inlet pipe includes a first air exchange section and a second air exchange section, and the first air exchange section starts from the top wall of the inner liquid inlet pipe or the inner inlet pipe. The bottom wall of the liquid pipe extends toward the side surface of the atomizing core accommodation cavity to the top wall of the inner liquid inlet pipe or the side surface of the inner liquid inlet bottom wall facing away from the atomizing core accommodation cavity. The second air exchange section is set on the top wall of the inner liquid inlet pipe or the bottom wall of the inner liquid inlet pipe on the side surface away from the atomizing core accommodation cavity, and one end of the second air exchange section is connected to the first air exchange section. A ventilation section, the other end of the second ventilation section communicates with the top wall of the inner liquid inlet pipe or the outer edge of the bottom wall of the inner liquid inlet pipe.

In one of the embodiments, the atomization assembly further includes an outer liquid inlet pipe, the outer liquid inlet pipe is accommodated in the liquid storage bin and sleeved outside the inner liquid inlet pipe, and the inner liquid inlet pipe A second air exchange channel communicating with the first air exchange channel and the liquid storage bin is defined between the tube and the external liquid inlet pipe.

In one of the embodiments, the outer liquid inlet pipe is protruded with a limiting rib extending along the axial direction of the inner liquid inlet pipe and surrounding the outside of the inner liquid inlet pipe, and the second ventilation channel forms Between the limiting rib and the outer circular surface of the side wall of the inner liquid inlet pipe.

In one of the embodiments, the atomizing core includes a heating element and a cylindrical base, and the heating element is wound around the base outside the base;

Wherein, the matrix is a porous structure.

In one of the embodiments, the substrate is porous ceramic or fiber cotton.

According to another aspect of the present application, an atomization device is provided, including the above-mentioned atomization assembly.

For the above-mentioned atomization assembly, on the one hand, when the liquid in the liquid storage chamber decreases and the air pressure in the atomization chamber drops, the gas in the gas outlet channel of the inner liquid inlet pipe passes through the first ventilation channel and the inner liquid inlet pipe ventilation hole. Entering the liquid storage tank to fill the space vacated by the consumption of the aerosol matrix, thereby balancing the pressure of the liquid storage tank and the outside atmosphere, and solving the problem of dry burning of the atomizing core caused by the supply compensation of the aerosol matrix. On the other hand, compared with the prior art that relies on the pores of the substrate itself and the assembly gap to form the ventilation channel, the size of the first ventilation channel and the ventilation hole of the inner liquid inlet pipe in this application is fixed, thus forming a stable The air exchange pressure makes the air exchange process of the atomization device more consistent.

Description of drawings

Fig. 1 is the sectional view of the atomization assembly of the first embodiment of the present invention;

Fig. 2 is a cross-sectional view from another angle of the atomization assembly shown in Fig. 1;

Fig. 3 is a partial enlarged view of A of the atomization assembly shown in Fig. 1;

Fig. 4 is a partially enlarged view of part B of the atomization assembly shown in Fig. 2;

Fig. 5 is a schematic structural view of the inner liquid inlet pipe of the atomization assembly shown in Fig. 1;

Fig. 6 is a cross-sectional view of an atomization assembly according to a second embodiment of the present invention;

Fig. 7 is a cross-sectional view from another angle of the atomization assembly shown in Fig. 6;

Fig. 8 is a partial enlarged view of C of the atomization assembly shown in Fig. 6;

Fig. 9 is a partial enlarged view at D of the atomization assembly shown in Fig. 7;

Fig. 10 is a schematic structural view of the inner liquid inlet pipe of the atomization assembly shown in Fig. 6;

Fig. 11 is a cross-sectional view of an atomization assembly according to a third embodiment of the present invention;

Fig. 12 is a cross-sectional view from another angle of the atomization assembly shown in Fig. 11;

Fig. 13 is a partial enlarged view of E of the atomization assembly shown in Fig. 11;

Fig. 14 is a partial enlarged view of F of the atomization assembly shown in Fig. 12;

Explanation of reference numbers:

100. Atomization component; 10. Suction nozzle; 30. Liquid storage shell; 32. Liquid storage bin; 50. Inner liquid inlet pipe; 52. Top wall of inner liquid inlet pipe; 521. Air outlet channel; 523. Large top wall 5232, ventilation tank; 525, the small end of the top wall; 53, the atomizing core storage cavity; 54, the side wall of the inner liquid inlet pipe; 56, the ventilation hole of the inner liquid inlet pipe; 561, the first ventilation section; 563, the second ventilation section; 60, the external liquid inlet pipe; 61, the limit rib; 63, the second ventilation channel; 70, the atomizing core; 71, the atomizing chamber; 72, the atomizing core bracket; 74, base body; 76, heating element; 90, first ventilation channel.

Detailed ways

In order to make the above-mentioned purpose, features and advantages of the present invention more obvious and understandable, the specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial" , "radial", "circumferential" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the referred device or Elements must have certain orientations, be constructed and operate in certain orientations, and therefore should not be construed as limitations on the invention.

In addition, the terms "first" and "second" are used for descriptive purposes only, and should not be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

In the present invention, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , or integrated; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components or the interaction relationship between two components, unless otherwise specified limit. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

In the present invention, unless otherwise clearly specified and limited, the first feature may be in direct contact with the first feature or the first and second feature may be in direct contact with the second feature through an intermediary. touch. Moreover, "above", "above" and "above" the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. "Below", "beneath" and "beneath" the first feature may mean that the first feature is directly below or obliquely below the second feature, or simply mean that the first feature is less horizontally than the second feature.

It should be noted that when an element is referred to as being "fixed on" or "disposed on" another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions are used herein for purposes of illustration only and are not intended to represent the only embodiments.

As shown in Figure 1 and Figure 2, an embodiment of the present application provides an atomization device (not shown in the figure), the atomization device includes a host and an atomization component 100 installed at one end of the host. Wherein, the host is used to supply power to the atomization assembly 100, and the atomization assembly 100 is used to store and heat the aerosol base under the action of the host electrical energy, so that the aerosol base produces aerosol for the user to inhale.

The atomization assembly 100 includes a suction nozzle 10, a liquid storage housing 30, an inner liquid inlet pipe 50, an outer liquid inlet pipe 60, and an atomizing core 70. The suction nozzle 10 is connected to one end of the liquid storage housing 30, and the inner liquid inlet pipe 50 is assembled In the liquid storage case 30, the outer liquid inlet pipe 60 is assembled in the liquid storage case 30 and sleeved outside the inner liquid inlet pipe 50, and the atomizing core 70 is assembled in the liquid storage case 30 and is located in the liquid storage case. On the flow path where the aerosol matrix in the body 30 flows in through the inner liquid inlet pipe 50, the aerosol matrix entering the atomizing core 70 is heated by the main engine under the action of electrical energy to produce aerosol, and the aerosol is produced by the smoker. Under suction, it is discharged to the suction nozzle 10 through the inner liquid inlet pipe 50 and the outer liquid inlet pipe 60 for the user to inhale. It can be understood that the specific structure of the atomization assembly 100 is not limited, and can be set according to needs to meet different needs.

Specifically, in some embodiments, the liquid storage housing 30 is a hollow shell-like structure, and has a liquid storage bin 32 for storing the aerosol matrix. It can be understood that the specific structure of the liquid storage housing 30 is not limited, and can be set according to needs to meet different requirements.

The inner liquid inlet pipe 50 is accommodated in the liquid storage bin 32 and communicated between the liquid storage bin 32 and the atomizing core 70 . Wherein, the inner liquid inlet pipe 50 is a hollow tubular structure, including an inner liquid inlet pipe top wall 52, an inner liquid inlet pipe bottom wall, and an inner inlet pipe connected between the inner liquid inlet pipe top wall 52 and the inner liquid inlet pipe bottom wall. The liquid pipe side wall 54, the inner liquid inlet pipe side wall 54 is formed by extending from the edge of the inner liquid inlet pipe top wall 52 toward the same direction, and the inner liquid inlet pipe side wall 54 surrounds the inner liquid inlet pipe top wall 52 along the circumferential direction to be in line with the inner liquid inlet pipe top wall 52. The side walls 54 of the liquid inlet pipe jointly define and form the atomizing core accommodation chamber 53, and the top wall 52 of the inner liquid inlet pipe penetrates through and opens an air outlet channel 521 communicating with the external air of the atomizing core accommodation chamber 53 and the atomization assembly 100, and the inner liquid inlet The bottom wall is penetratingly provided with an air inlet passage connecting the atomizing core storage cavity and the external air 53 of the atomization assembly 100 , and the air outlet channel 521 , the air intake channel and the atomization core storage cavity 53 are arranged coaxially.

Further, at least one liquid inlet hole is opened through the side wall 54 of the inner liquid inlet pipe, and the liquid inlet hole communicates with the liquid storage bin 32 and the atomizing core accommodation cavity 53, so the aerosol matrix in the liquid storage bin 32 can pass through the liquid inlet hole into the atomizing core housing cavity 53 .

The atomizing core 70 is accommodated in the inner liquid inlet pipe 50, and the atomizing core 70 is in the shape of a rotator (such as a cylinder) structure. The central axis of the core 70 coincides with the central axis of the inner liquid inlet tube 50 . Specifically, the atomizing core 70 includes an atomizing core support 72 , a base 74 and a heating element 76 . The atomizing core support 72 is a hollow tubular structure, and the central axis of the atomizing core support 72 coincides with the central axis of the inner liquid inlet pipe 50. The matrix 74 is a porous structure formed of porous ceramics, fiber cotton and other materials. The matrix 74 is inserted into the axial end of the atomizing core support 72, and the matrix 74 covers the outer periphery of the atomizing core support 72 along the circumferential direction to form a mist. The heating chamber 71 and the heating element 76 are accommodated in the base body 74 and extend helically along the axial direction of the atomizing core support 72 . In this way, the aerosol matrix entering the atomizing core accommodation cavity 53 from the liquid storage chamber 32 is absorbed by the base body 74, and the heating element 76 can heat the aerosol matrix in the base body 74 to generate aerosol, and the external airflow can enter the mist through the air intake channel. Then, the aerosol is carried out of the atomization assembly 100 through the air outlet channel 521 of the inner liquid inlet pipe 50 .

As mentioned in the background art, during the use of the atomizing device, the aerosol matrix in the atomizing core housing chamber 53 is gradually consumed, causing a negative pressure to be generated in the atomizing core housing chamber 53, thereby affecting the pressure on the atomizing core 70. The liquid supply speed is high, and then the atomization core 70 is dry-burned because the consumption rate of the aerosol matrix is greater than the supply rate.

Please refer to Fig. 3 and Fig. 4, in order to avoid dry burning of the atomizing core 70, in this application, the inner wall of the inner liquid inlet pipe 50 and the atomizing core 70 are defined to form a communication outlet channel 521 and/or an air inlet channel 521. The air channel and the first air exchange channel 90 of the liquid storage bin 32 .

In this way, on the one hand, when the liquid in the liquid storage bin 32 decreases and the air pressure in the atomizing core housing cavity 53 drops, the gas in the air outlet channel 521 or the air intake channel of the inner liquid inlet pipe 50 passes through the first ventilation channel 90 Enter the liquid storage bin 32 to fill the space vacated by the consumption of the aerosol matrix, thereby balancing the air pressure between the liquid storage bin 32 and the outside atmosphere, and solving the problem of dry burning of the atomizing core 70 caused by the supply compensation of the aerosol matrix . On the other hand, compared with the prior art that relies on the pores and assembly gaps of the matrix 74 itself to form the ventilation channel, the size of the first ventilation channel 90 in the present application is fixed, so that a stable ventilation pressure can be formed, and then The ventilation process of the atomization device has high consistency.

Specifically, one end surface of the base body 74 of the atomizing core 70 in the axial direction is spaced from the top wall 52 of the inner liquid inlet pipe or the bottom wall of the inner liquid inlet pipe so as to define and form the first ventilation channel 90, so that in the air intake channel The gas can enter the first ventilation channel 90 smoothly. In this way, the installation position of the atomizing core 70 in the atomizing core receiving chamber 53 can be controlled to precisely control the size of the first ventilation channel 90.

The structure of the atomization assembly 100 will be described below by taking the first ventilation channel 90 defined between the atomization core 70 and the top wall of the inner liquid inlet pipe 52 to form the air outlet channel 521 as an example. It can be understood that, in some other embodiments, the first ventilation channel 90 is defined between the atomizing core 70 and the bottom wall of the inner liquid inlet tube to communicate with the intake channel. In some other embodiments, air inlet passages are formed between the atomizing core 70, the top wall 52 of the inner liquid inlet pipe, and the bottom wall of the inner liquid inlet pipe.

Specifically, in some embodiments, the atomizing core 70 is spaced from the top wall 52 of the inner liquid inlet pipe to define and form the first air exchange channel 90, so that the gas in the gas outlet channel 521 flows from the atomizing core 70 to the top wall of the inner liquid inlet pipe. 52 outflows.

Specifically, in some other embodiments, the side surface of the atomizing core 70 facing the top wall 52 of the inner liquid inlet pipe is provided with an inwardly recessed groove, and the groove wall and the top wall 52 of the inner liquid inlet pipe are jointly defined to form a first A ventilation channel 90 . It can be understood that the shape and position of the groove are not limited, and can be set as needed to meet different requirements.

As shown in FIGS. 6 to 9 , further in some embodiments, the top wall 52 of the inner liquid inlet pipe is provided with an inwardly recessed ventilation groove 5232 (as shown in FIG. 9 ) on the side surface facing the atomizing core 70 . , the airflow can flow into the liquid storage chamber 32 through the ventilation groove 5232 . In this way, since the base body 74 cannot enter the ventilation groove 5232, the first ventilation channel 90 can be prevented from being compressed by the base body 74 to affect the ventilation effect.

In one embodiment, the air exchange groove 5232 extends along the radial direction of the inner liquid inlet pipe 50 , and the shape of the cross section of the air exchange groove 5232 perpendicular to the radial direction of the inner liquid inlet pipe 50 is a semicircle. It can be understood that the extending direction and cross-sectional shape of the air exchange groove 5232 are not limited thereto, and can be set according to needs to meet different requirements.

In some embodiments, the inner liquid inlet pipe 50 is provided with an inner liquid inlet pipe ventilation hole 56 that communicates with the first ventilation channel 90 and the liquid storage bin 32, and the gas in the first ventilation channel 90 can pass through the inner liquid inlet tube. The ventilation hole 56 enters the liquid storage bin 32 .

Specifically, in one embodiment, one end of the vent hole 56 of the inner liquid inlet pipe communicates with the first ventilating channel 90 , and the other end of the vent hole 56 of the inner liquid inlet pipe extends along the radial direction of the inner liquid inlet pipe 50 to the inner The liquid inlet pipe 50 is away from the outer surface of the atomizing core housing chamber 53 . In some embodiments, the shape of the cross section of the inner liquid inlet pipe ventilation hole 56 perpendicular to the radial direction of the inner liquid inlet pipe 50 is circular. It can be understood that the extension direction of the inner liquid inlet pipe ventilation hole 56 and the shape of the cross section perpendicular to the radial direction of the inner liquid inlet pipe 50 are not limited thereto, and can be set according to needs to meet different requirements.

In another embodiment, the top wall 52 of the inner liquid inlet tube includes a large top wall end 523 and a small top wall end 525 . The big end 523 of the top wall is connected between the side wall 54 of the inner liquid inlet pipe and the small end 525 of the top wall, and the outer diameter of the small end 525 of the top wall is smaller than the outer diameter of the big end 523 of the top wall, so that the big end 523 of the top wall is in contact with the small end 525 of the top wall. The junction of the small end 525 of the wall forms a stepped surface surrounding the small end 525 of the top wall, and the diameter of the air outlet channel 521 is smaller than the diameter of the atomizing core accommodation cavity 53 .

The ventilation hole 56 of the inner liquid inlet pipe includes a first ventilation section 561 and a second ventilation section 563 . The first ventilation section 561 extends from the side surface of the inner liquid inlet pipe top wall 52 toward the atomizing core accommodation chamber 53 to the side surface of the inner liquid inlet pipe top wall 52 whose top wall big end 523 is away from the atomization chamber 53 . The second ventilation section 563 is set on the surface of the inner liquid inlet pipe top wall 52 facing away from the atomizing core housing cavity 53, one end of the second ventilation section 563 is connected to the first ventilation section 561, and the second ventilation section 563 The other end communicates with the outer edge of the top wall 52 of the inner liquid inlet pipe. Specifically, in one embodiment, the first ventilation section 563 extends to the step surface surrounding the small end 525 of the top wall, and the second ventilation section 563 is located on the step surface surrounding the small end 525 of the top wall.

In one embodiment, the first air exchange section 561 extends along the axial direction of the inner liquid inlet pipe 50, and the cross section of the first air exchange section 561 perpendicular to the axial direction of the inner liquid inlet pipe 50 is circular. The second air exchange section 563 extends along the radial direction of the inner liquid inlet pipe 50, and the cross section of the second air exchange section 563 perpendicular to the radial direction of the inner liquid inlet pipe 50 is rectangular. It can be understood that the extension direction and cross-sectional shape of the first ventilation section 561 and the second ventilation section 563 are not limited, and can be set according to needs to meet different requirements.

In some embodiments, the inner liquid inlet pipe 50 and the outer liquid inlet pipe 60 define a second air exchange channel that communicates with the first air exchange channel 90 and the liquid storage chamber 32. Specifically, in one embodiment, the outer liquid inlet pipe 60 is protruded with a limiting rib 61 extending along the axial direction of the inner liquid inlet pipe 50 and surrounding the outside of the inner liquid inlet pipe 50. The limiting rib 61 is connected to the side of the inner liquid inlet pipe. A second ventilation channel 63 is defined between the outer circular surfaces of the walls 54 . Therefore, the gas discharged from the inner liquid inlet pipe ventilation hole 56 of the inner liquid inlet pipe 50 enters the liquid storage bin 32 through the second ventilation channel 63 .

It can be understood that, in another embodiment, there is no need to form a second ventilation channel 63 between the inner liquid inlet pipe 50 and the outer liquid inlet pipe 60, and the air is discharged from the inner liquid inlet pipe ventilation hole 56 of the inner liquid inlet pipe 50. The gas directly enters the liquid storage bin 32.

In the above-mentioned embodiment, the size and length of the first ventilation passage 90, the ventilation hole 56 of the inner liquid inlet pipe and the second ventilation passage 63 are set according to the dimensions of the inner liquid inlet pipe 50 and the like, as long as the first ventilation It is sufficient that the ventilation pressures of the channel 90 , the ventilation hole 56 of the inner liquid inlet pipe and the second ventilation channel 63 reach a preset value. It should be noted that the ventilation pressure is the pressure that needs to be overcome when the outside gas enters the liquid storage chamber 32 through the first ventilation channel 90, the inner liquid inlet pipe ventilation hole 56 and the second ventilation channel 63. During the process, when the pressure drop in the liquid storage chamber 32 exceeds the ventilation pressure, the external air can enter the liquid storage chamber through the first ventilation channel 90, the ventilation hole 56 of the inner liquid inlet pipe and the second ventilation channel 63 32 in.

(其 中，f为层流区间，l为流道长度，d为当量直径，v为平均流速，ρ为液体密 度，Re为雷诺数)，表面张力的计算公式为

(其中，γ为表面张力， θ为接触角；ρ为液体密度，g为重力加速度；r为流道半径)。Specifically, the air exchange pressure is the sum of the drive pressure required by the along-path resistance ΔP, surface tension h, and liquid level pressure, where the formula for calculating the along-path resistance is

(wherein, f is the laminar flow interval, l is the flow channel length, d is the equivalent diameter, v is the average flow velocity, ρ is the liquid density, and Re is the Reynolds number), the calculation formula of surface tension is

(where, γ is the surface tension, θ is the contact angle; ρ is the liquid density, g is the acceleration of gravity; r is the radius of the flow channel).

Please refer to FIG. 1 to FIG. 5 , in the atomization assembly 100 of the first embodiment of the present application, there is a gap between one end surface of the atomization core 70 in the axial direction and the top wall 52 of the inner liquid inlet pipe to form a first exchange. Gas channel 90. The air exchange hole 56 of the inner liquid inlet pipe includes a first air exchange section 561 and a second air exchange section 563. The first air exchange section 561 extends from the top wall 52 of the inner liquid inlet pipe toward one side surface of the atomizing core housing cavity 53 to The big end 523 of the top wall 52 of the inner liquid inlet pipe is away from the side surface of the atomizing core accommodation cavity 53 . The second ventilation section 563 is set on the outer surface of the top wall big end 523 surrounding the top wall small end 525, one end of the second ventilation section 563 communicates with the first ventilation section 561, and the other end of the second ventilation section 563 communicates with the interior. The outer edge of the top wall 52 of the liquid inlet pipe.

Specifically, there is a gap of 0.2 mm between one end surface of the atomizing core 70 in the axial direction and the top wall 52 of the inner liquid inlet pipe to form a first ventilation channel 90 with a height of 0.2 mm. The first ventilation section 561 of the inner liquid inlet pipe ventilation hole 56 is a circular hole with a diameter of 0.2mm, and the second ventilation section 563 is a width of 0.2mm and a square groove of 0.2mm in depth. In this way, according to the calculation formula of the ventilation pressure, the ventilation pressure of the atomization assembly 100 of the first embodiment can be calculated to be 1074 to 1154Pa, so that a good ventilation effect can be achieved.

Please refer to FIG. 6 to FIG. 10 , in the atomization assembly 100 of the second embodiment of the present application, there is a gap between one end surface of the atomization core 70 in the axial direction and the top wall 52 of the inner liquid inlet pipe to form a first exchange. The air channel 90 and the top wall 52 of the inner liquid inlet pipe are provided with an inwardly recessed air exchange groove 5232 on a side surface facing the atomizing core 70 . One end of the inner liquid inlet pipe ventilation hole 56 is connected to the first ventilation channel 90, and the other end of the inner liquid inlet pipe ventilation hole 56 extends along the radial direction of the inner liquid inlet pipe 50 until the inner liquid inlet pipe 50 is away from the atomizing core. The outer surface of the receiving cavity 53 .

Specifically, there is a gap of 0.15 mm between the area of one end surface of the atomizing core 70 without the ventilation groove 5232 and the top wall 52 of the inner liquid inlet pipe. The cross section of the ventilation groove 5232 is semicircular, and the ventilation groove The radius of 5232 is 0.15 mm, so the atomizing core 70 and the inner liquid inlet pipe 50 jointly form the first ventilation channel 90 with a maximum inner diameter of 0.3 mm. The ventilation hole 56 of the inner liquid inlet pipe is a circular hole with a diameter of 0.2mm-0.5mm. In this way, according to the calculation formula along the ventilation pressure, the ventilation pressure of the atomization assembly 100 of the second embodiment can be calculated from 964 to 1034Pa.

Referring to FIGS. 11 to 14 , in the third embodiment of the present application, there is a gap between one end surface of the atomizing core 70 in the axial direction and the top wall 52 of the inner liquid inlet pipe to form a first ventilation channel 90 , one end of the inner liquid inlet pipe ventilation hole 56 communicates with the first ventilation channel 90, and the other end of the inner liquid inlet pipe ventilation hole 56 extends along the radial direction of the inner liquid inlet pipe 50 to the inner liquid inlet pipe 50 away from the atomization The outer surface of the core housing cavity 53 .

Specifically, there is a gap of 0.3 mm between one end surface of the atomizing core 70 and the top wall 52 of the inner liquid inlet pipe to form a first ventilation channel 90 with a height of 0.3 mm, and the inner liquid inlet pipe ventilation hole 56 has a diameter of 0.2mm-0.5mm round hole.

The above-mentioned atomization assembly 100 and the atomization device provided with it, provide the atomization assembly 100 with relatively strong The high consistency of the ventilation pressure avoids the influence of the ventilation pressure due to the assembly tolerance and the compression of the base 74, improves the ventilation performance of the atomization device, and effectively avoids the risks of liquid leakage and dry burning. .

The technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, should be considered as within the scope of this specification.

The above-mentioned embodiments only express several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but should not be construed as limiting the scope of the patent for the invention. It should be noted that for those skilled in the art, without departing from the concept of the present invention, several modifications and improvements can be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for the present invention should be based on the appended claims.

Claims (12)

1. An atomizing assembly, comprising:

a liquid storage housing having a liquid storage compartment;

the inner liquid inlet pipe is accommodated in the liquid storage bin and comprises an air inlet channel, an atomization core accommodating cavity and an air outlet channel which are communicated with each other; the air inlet channel and the air outlet channel are respectively communicated with the external air of the atomizing assembly; and

the atomizing core is accommodated in the atomizing core accommodating cavity; an atomization cavity is formed on the inner wall of the atomization core and is communicated with the air inlet channel and the air outlet channel;

the inner wall of the inner liquid inlet pipe and the atomizing core are defined to form a first ventilation channel, and the first ventilation channel is communicated with the air inlet channel and the liquid storage bin, and/or the first ventilation channel is communicated with the air outlet channel and the liquid storage bin.

2. The atomizing assembly according to claim 1, wherein the inner liquid inlet pipe includes an inner liquid inlet pipe top wall, an inner liquid inlet pipe bottom wall, and an inner liquid inlet pipe side wall connected to the inner liquid inlet pipe top wall and the inner liquid inlet pipe bottom wall, the air inlet channel is opened at the inner liquid inlet pipe bottom wall, the air outlet channel is opened at the inner liquid inlet pipe top wall, and a diameter of the air outlet channel or the air inlet channel is smaller than a diameter of the atomizing core receiving chamber;

wherein, the atomizing core is located between interior feed liquor pipe roof and interior feed liquor pipe diapire, the atomizing core with interior feed liquor pipe roof and/or interior feed liquor pipe diapire interval sets up in order to delimit and form first air exchange channel.

3. The atomizing assembly according to claim 2, wherein a side surface of the atomizing core facing the top wall and/or the bottom wall of the inner liquid inlet pipe is provided with an inwardly concave groove, and a groove wall of the groove and the top wall and/or the bottom wall of the inner liquid inlet pipe jointly define the first air exchange channel.

4. The atomizing assembly of claim 2, wherein the top wall of the inner liquid inlet pipe and/or the bottom wall of the inner liquid inlet pipe is opened with an air exchanging groove on a side surface facing the atomizing core accommodating cavity.

5. The atomizing assembly of claim 2, wherein said inner liquid inlet pipe is opened with an inner liquid inlet pipe vent hole, said inner liquid inlet pipe vent hole communicating said first vent channel with said reservoir.

6. The atomizing assembly of claim 5, wherein one end of the inner liquid inlet pipe ventilation hole communicates with the first ventilation channel, and the other end of the inner liquid inlet pipe ventilation hole penetrates to the outer surface of the inner liquid inlet pipe along the radial direction of the inner liquid inlet pipe.

7. The atomizing assembly according to claim 5, wherein the inner liquid inlet pipe ventilation hole includes a first ventilation section extending from a side surface of the inner liquid inlet pipe top wall or the inner liquid inlet pipe bottom wall facing the atomizing core accommodating chamber to a side surface of the inner liquid inlet pipe top wall or the inner liquid inlet pipe bottom wall facing away from the atomizing core accommodating chamber, and a second ventilation section provided on a side surface of the inner liquid inlet pipe top wall or the inner liquid inlet pipe bottom wall facing away from the atomizing core accommodating chamber, wherein one end of the second ventilation section communicates with the first ventilation section, and the other end of the second ventilation section communicates with an outer edge of the inner liquid inlet pipe top wall or the inner liquid inlet pipe bottom wall.

8. The atomizing assembly of claim 1, further comprising an outer liquid inlet tube received in the reservoir and sleeved outside the inner liquid inlet tube, wherein a second air exchange channel is defined between the inner liquid inlet tube and the outer liquid inlet tube to communicate the first air exchange channel with the reservoir.

9. The atomizing assembly of claim 8, wherein the outer liquid inlet pipe is protruded with a limiting rib extending along an axial direction of the inner liquid inlet pipe and surrounding the outer liquid inlet pipe, and the second air exchanging channel is formed between the limiting rib and an outer circumferential surface of a sidewall of the inner liquid inlet pipe.

10. The atomizing assembly of claim 1, wherein said atomizing core includes a heating element and a cylindrical base, said heating element being circumferentially wound around said base;

wherein the matrix is a porous structure.

11. The atomizing assembly of claim 10, wherein the substrate is a porous ceramic or a cellucotton.

12. An atomising device comprising an atomising assembly according to any of the claims 1 to 11.

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