WO2023019570A1 - Electronic atomization device and atomizer thereof - Google Patents

Abstract

An electronic atomizer and an atomization device having same. The atomizer comprises a liquid storage bin (12) for storing a liquid; a first liquid-discharging channel (1), a liquid suction channel (2) and a second liquid-discharging channel (3), which are sequentially in communication with one another, wherein the first liquid-discharging channel and the second liquid-discharging channel are respectively in communication with the liquid storage bin; and an atomization core (30) having a liquid suction surface (32), wherein the liquid suction surface is at least part of an inner wall surface of the liquid suction channel. When the liquid in the liquid storage bin gradually fills the liquid suction channel, a preset flow velocity of the liquid from the first liquid-discharging channel to the liquid suction channel is greater than a preset flow velocity of the liquid from the second liquid-discharging channel to the liquid suction channel, such that bubbles released by filling of the liquid suction channel with the liquid are discharged to the liquid storage bin by means of passing through the second liquid-discharging channel. When the liquid is filled, liquid intake rates of two ends of the liquid suction channel are different, such that the atomizer can completely discharge gas in the liquid suction channel, making it difficult for bubbles to be trapped in the liquid suction channel.

Description

Electronic atomization device and its atomizer

This application claims the priority of the PCT patent application filed on August 31, 2020 with the application number PCT/CN2020/112672 and the title of the invention is "Atomization Component and Electronic Atomization Device", which is incorporated by reference in its entirety this application.

【Technical field】

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

【Background technique】

Electronic atomization devices in the prior art are mainly composed of an atomizer and a power supply. The atomizer generally includes a liquid storage bin and an atomization component. The liquid storage bin is used to store the nebulizable medium, and the atomization component is used to heat and atomize the nebulizable medium to form an aerosol that can be consumed by smokers. ; The power supply is used to supply energy to the atomizer.

When assembling the existing atomizer, the shell of the atomizer is turned upside down, the liquid is injected first, and then the heating seat, sealing silica gel, atomizing core, etc. are assembled, and the atomizer is turned upside down after the installation is completed. At this time, the liquid is under the action of gravity. It flows down to the liquid suction channel and the atomizing core, because there is air in the liquid supply channel, some of the air is difficult to discharge, and the air is easy to stay in it to form air bubbles, and the position where the air bubbles are often located on the liquid suction surface of the atomizer will affect The supplement of nebulizable medium will reduce the amount of aerosol in the nebulizer and easily produce burnt smell.

【Content of invention】

The present application mainly provides an electronic atomization device and its atomizer to solve the problem that air bubbles remain in the liquid supply channel of the electronic atomization device and affect the supply of atomizable medium.

In order to solve the above technical problems, a technical solution adopted by the present application is to provide an atomizer. The atomizer includes: a liquid storage chamber for storing liquid; a first liquid lowering channel, a liquid suction channel and a second liquid lowering channel connected in sequence, and the first liquid lowering channel and the second liquid lowering channel communicate with the liquid storage tank respectively ; The atomizing core has a liquid-absorbing surface, and the liquid-absorbing surface is at least a part of the inner wall surface of the liquid-absorbing channel; wherein, when the liquid in the liquid storage bin gradually fills the liquid-absorbing channel, the liquid flows from the first lower liquid channel to the direction of the liquid-absorbing channel The preset flow rate of the liquid is greater than the preset flow rate of the liquid from the second liquid lower channel to the liquid suction channel, so that the liquid fills the liquid suction channel and the air bubbles discharged are discharged to the liquid storage bin through the second liquid lower channel.

In some embodiments, the atomizer further includes a flow rate adjustment structure, the flow rate adjustment structure is arranged on at least one of the first liquid lower channel, the suction channel and the second liquid lower channel, and the flow rate adjustment structure makes the first liquid lower channel The preset flow rate to the direction of the liquid suction channel is greater than the preset flow rate from the second lower liquid channel to the direction of the liquid suction channel.

In some embodiments, the flow velocity adjustment structure is a flow velocity acceleration structure, and the flow velocity acceleration structure is arranged in the first liquid lowering channel and/or the liquid suction channel.

In some embodiments, the flow speed accelerating structure is a capillary groove structure extending along the direction from the first lower liquid channel to the liquid suction channel.

In some embodiments, the flow rate adjustment structure is a flow rate slowing structure, and the flow rate slowing structure is arranged in the second liquid lowering channel.

In some embodiments, the flow rate adjustment structure is a bidirectional flow guide structure with inconsistent flow rates, and the flow guide structure is arranged in at least one of the liquid suction channel, the first liquid lower channel and the second liquid lower channel.

In some embodiments, the diversion structure is a fishbone groove structure, and the fishbone groove structure includes a main diversion section and several branch diversion sections arranged on at least one side of the main diversion section, and the main diversion section is a capillary channel, The included angle between the extension direction of the branch flow guide section and the extension direction from the first end to the second end of the main flow guide section is an acute angle.

In some embodiments, the branch guide section includes a first wall surface and a second wall surface spaced apart, and the first wall surface and the second wall surface are connected to the side wall surface of the main guide section, and the first wall surface is closer to the main guide section than the second wall surface. At the first end of the flow section, the angle formed between the first wall surface and the side wall surface of the main flow guiding section connected to it is greater than 90°, and the angle formed between the second wall surface and the side wall surface of the main flow guiding section connected to it is less than 90°.

In some embodiments, the branch guide section is a blind capillary channel.

In some embodiments, the fishbone groove structure further includes a liquid-accumulating section, the main flow-guiding section communicates with the liquid-accumulating section and passes through the liquid-accumulating section, wherein the width of the liquid-accumulating section along its extending direction is larger than that of the main flow-guiding section Width dimension.

In some embodiments, the first liquid lowering channel is a capillary channel, and the characteristic dimension of the cross section of the first liquid lowering channel along its extending direction is smaller than the characteristic dimension of the cross section of the second liquid lowering channel along its extending direction.

In some embodiments, the characteristic dimensions of the first liquid lowering channel and the second liquid lowering channel are both in the range of 0.4 mm to 7.0 mm.

In some embodiments, the atomizer further includes: an atomizing seat, embedded in the liquid storage chamber, and provided with a first liquid lowering channel and a second liquid lowering channel, and the atomizing core is arranged on the atomizing seat; wherein , the atomization seat cooperates with the atomization core to form a liquid suction channel.

In some embodiments, the atomizer further includes: an atomizing seat, embedded in the liquid storage chamber, and provided with a first liquid lowering channel and a second liquid lowering channel, and the atomizing core is arranged on the atomizing seat; A piece is connected with the atomizing seat and covers the liquid-absorbing surface; wherein, the sealing piece cooperates with the atomizing core to form a liquid-absorbing channel.

In some embodiments, a liquid guiding groove is provided on the side of the sealing member facing the liquid absorbing surface, the liquid guiding groove straddles the liquid absorbing surface, and the liquid absorbing surface cover is arranged on the liquid guiding groove to form a liquid absorbing channel.

In some embodiments, the liquid guiding groove is a straight groove; or at least one flow guide wall is provided on the bottom wall of the liquid guiding groove, and the flow guiding wall divides the liquid guiding groove into at least two capillary grooves.

In some embodiments, the flow guide wall is a porous matrix; or the flow guide wall is provided with a communication port.

In order to solve the above technical problems, another technical solution adopted by the present application is to provide an electronic atomization device. The electronic atomization device includes a power supply and the aforementioned atomizer, the power supply is connected to the atomizer and supplies power to the atomizer.

The beneficial effects of the application are: different from the prior art, the application discloses an electronic atomization device and an atomizer thereof. By setting the preset flow rate of the liquid from the first liquid lower channel to the liquid suction channel to be greater than the preset flow rate of the liquid from the second liquid lower channel to the liquid suction channel, when filling liquid, the liquid in the liquid storage bin is always preset Assuming that the end with a faster flow rate enters the liquid suction channel, the gas in the liquid suction channel is squeezed by the liquid flow at one end and is gradually discharged from the other end of the liquid suction channel. The exhaust of the liquid channel makes it difficult for the gas to accumulate in the liquid suction channel, avoiding the existence of air bubbles in the liquid suction channel that will affect the liquid supply to the liquid suction surface, and can solve the problem of low aerosol generation efficiency and easy to produce burnt smell in the atomizer Problems that affect the taste, so that the aerosol generation efficiency in the nebulizer can be effectively maintained and the risk of burning smell is low.

【Description of drawings】

Fig. 1 is a schematic structural diagram of an embodiment of an electronic atomization device provided by the present application;

Fig. 2 is a schematic structural diagram of the atomizer in the electronic atomization device shown in Fig. 1;

Fig. 3 is a schematic cross-sectional structural view of the atomizer shown in Fig. 2;

Fig. 4 is a schematic diagram of the explosive structure of the atomizer shown in Fig. 2;

Fig. 5 is a schematic diagram of an enlarged structure of area A in the atomizer shown in Fig. 3;

Fig. 6 is a schematic cross-sectional structural view of the atomization seat in the atomizer shown in Fig. 4;

Fig. 7 is a structural schematic diagram of another viewing angle of the atomization seat in the atomizer shown in Fig. 4;

Fig. 8 is a fluid force analysis diagram of the first liquid lowering channel and the second liquid lowering channel when they are filled with liquid;

Figure 9 is a schematic diagram of the distribution of liquid and gas in the atomizer at the time of 0.4s at the beginning of liquid filling for models with different lower liquid port sizes;

Fig. 10 is a schematic diagram of the flow rate adjustment structure in the atomizer shown in Fig. 2 being arranged in the first lower liquid channel;

Fig. 11 is another structural schematic diagram of the atomization seat in the atomizer shown in Fig. 2;

Fig. 12 is a schematic diagram of the flow rate adjustment structure in the atomizer shown in Fig. 2 being arranged in the second lower liquid channel;

Fig. 13 is a schematic diagram of the flow rate adjustment structure in the atomizer shown in Fig. 2 being arranged in the liquid suction channel;

Fig. 14 is a schematic diagram of an axial structure of the seal in the atomizer shown in Fig. 4;

Fig. 15 is a structural schematic diagram of a diversion structure;

Fig. 16 is a schematic top view of the seal shown in Fig. 14;

Fig. 17 is another top view structural diagram of the seal in the atomizer shown in Fig. 4;

Fig. 18 is a schematic diagram of another axial structure of the seal in the atomizer shown in Fig. 4

Fig. 19 is a schematic diagram of another axial structure of the seal in the atomizer shown in Fig. 4;

Fig. 20 is a schematic diagram of the chart drawn after the seal shown in Fig. 18 and Fig. 19 has passed the residual liquid verification test;

Fig. 21 is another schematic top view of the seal in the atomizer shown in Fig. 4 .

【Detailed ways】

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

The terms "first", "second", and "third" in the embodiments of the present application are used for description purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Thus, features defined as "first", "second", and "third" may explicitly or implicitly include at least one of these features. In the description of the present application, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined. Furthermore, the terms "include" and "have", as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes unlisted steps or units, or optionally further includes For other steps or units inherent in these processes, methods, products or devices.

Reference herein to an "embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The occurrences of this phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is understood explicitly and implicitly by those skilled in the art that the embodiments described herein can be combined with other embodiments.

This application provides an electronic atomization device 300, refer to Figure 1 to Figure 3, Figure 1 is a schematic structural diagram of an embodiment of the electronic atomization device provided by this application, Figure 2 is the atomization device in the electronic atomization device shown in Figure 1 Figure 3 is a schematic diagram of the structure of the atomizer shown in Figure 2.

The electronic atomization device 300 can be used for atomizing the atomizable substrate such as medicinal liquid or nutritional solution, that is, atomizing the liquid atomizable substrate to form an aerosol, so as to facilitate absorption by the user. The electronic atomization device 300 includes a power supply 200 and an atomizer 100 , the power supply 200 is connected to the atomizer 100 and supplies power to the atomizer 100 . Wherein, the atomizer 100 is used for storing the nebulizable base and atomizing the nebulizable base to form an aerosol for absorption by the user.

It can be understood that in some embodiments, the atomizer 100 and the power supply 200 can be detachably connected, which can be plugged or screwed, that is, the atomizer 100 and the power supply 200 can be two relatively independent components, and the atomizer 100 is disposable and replaceable, and the power supply 200 is non-disposable, which can be used multiple times after charging the power supply 200; the atomizer 100 can also be non-disposable, and can be used multiple times after replenishing liquid.

In other embodiments, the atomizer 100 and the power supply 200 can be packaged together in the same housing to form an integrated electronic atomization device 300, that is, the atomizer 100 and the power supply 200 are not detachably connected; this kind of electronic atomization The device 300 is generally disposable and can be disposed of once the aerosolizable substrate is exhausted.

As shown in Figures 2 and 3, the atomizer 100 is provided with a first lower liquid channel 1, a liquid suction channel 2 and a second lower liquid channel 3 connected in sequence, and the liquid suction surface 32 of the atomizer 100 is a liquid suction channel. At least a part of the inner wall surface of the channel 2; wherein, the preset flow rate of the liquid from the first lower liquid channel 1 to the liquid suction channel 2 is greater than the preset flow rate of the liquid from the second lower liquid channel 3 to the liquid suction channel 2.

Specifically, the atomizer 100 has a liquid storage bin 12 for storing the nebulizable substance and an atomizing core 30 for atomizing the nebulizable substance, and the first lower liquid channel 1 and the second lower liquid channel 3 are connected to the storage tank. The liquid chamber 12 and the liquid absorption channel 2, the atomizable substrate in the liquid storage chamber 12 can enter the liquid absorption channel 2 through the first lower liquid channel 1 and the second lower liquid channel 3, and the atomizing core 30 has a liquid absorption surface 32 , and the liquid-absorbing surface 32 is at least a part of the inner wall of the liquid-absorbing channel 2 , that is, it can absorb the nebulizable substrate from the liquid-absorbing channel 2 .

It should be noted that the preset flow rate referred to herein refers to the flow rate measured when liquid enters from one end of the channel and the other end of the channel is open.

The preset flow velocity of the liquid from the first lower liquid channel 1 to the liquid suction channel 2 is greater than the preset flow rate of the liquid from the second liquid lower channel 3 to the liquid suction channel 2, which can be the time when the liquid flows through the first liquid lower channel 1 The preset flow rate is greater than the preset flow rate of the liquid flowing through the second lower liquid channel 3, or the preset flow rate of the liquid passing through the liquid suction channel 2 in the direction from the first lower liquid channel 1 to the second lower liquid channel 3 is greater than that of the liquid from the second lower liquid channel 3. The preset flow rate passing through the liquid suction channel 2 in the direction from the second lower liquid channel 3 to the first liquid lower channel 1 can also be that the preset flow rate of the liquid flowing through the first liquid lower channel 1 and the liquid suction channel 2 in sequence is greater than that of the liquid sequentially. The preset flow rate flowing through the second lower liquid channel 3 and the liquid suction channel 2.

When the liquid in the liquid storage bin 12 gradually fills the liquid suction channel 2, the preset flow rate of the liquid from the first lower liquid channel 1 to the liquid suction channel 2 is greater than the predetermined flow rate of the liquid from the second lower liquid channel 3 to the liquid suction channel 2. The flow rate is set so that the liquid is filled with the liquid suction channel 2 and the air bubbles discharged are discharged to the liquid storage chamber 12 through the second liquid lower channel 3 .

In practical application, when the aerosolizable substrate is stored in the liquid storage bin 12 and the aerosolizable substrate does not enter the first liquid lowering channel 1 and the second liquid lowering channel 3, the liquid flows from the first liquid lowering channel 1 to the second liquid lowering channel 3. The preset flow velocity in the direction of the suction channel 2 is greater than the preset flow velocity of the liquid from the second lower liquid channel 3 to the direction of the liquid suction channel 2, then the atomizable substrate always enters from the end with the preset flow velocity, in other words, the atomizable The matrix enters the liquid absorption channel 2 from one end with a preset faster flow rate, and discharges the gas in the liquid absorption channel 2 from the other end, making it difficult for the gas to accumulate in the liquid absorption channel 2, especially the gas accumulated in the middle region, Avoiding the existence of air bubbles in the liquid suction channel 2 and affecting the liquid supply to the liquid suction surface 32 can solve the problems of reduced aerosol generation efficiency in the nebulizer 100 and easy generation of burnt taste that affects the taste, so that the nebulizer can be effectively maintained The generation efficiency of aerosol within 100 is high and the risk of burning smell is low.

It should be noted that when the first lower liquid channel 1, the liquid suction channel 2 and the second lower liquid channel 3 are filled with an atomizable substrate, the atomizable substrate will The flow velocity in the two lower liquid passages 3 is the same. The above-mentioned process of discharging the gas in the liquid suction channel 2 is completed when the first liquid channel 1, the liquid suction channel 2 and the second liquid channel 3 are filled, that is, in the first liquid channel 1. It is completed during the filling process of the suction channel 2 and the second lower liquid channel 3.

The first lower liquid channel 1, the liquid suction channel 2 and the second lower liquid channel 3 can all be one or multiple, or the first liquid channel 1, the liquid suction channel 2 and the second lower liquid channel 3 The numbers can also vary, and this application does not specifically limit it.

The cross-sections of the first lower liquid channel 1, the liquid suction channel 2 and the second lower liquid channel 3 along the extension direction can be regular shapes such as circles or rectangles, or polygons such as irregular triangles or quadrilaterals, and they The cross section along the extending direction may be the same or change, which is not specifically limited in the present application.

Referring to FIG. 2 to FIG. 5 in conjunction, FIG. 4 is a schematic diagram of the exploded structure of the atomizer shown in FIG. 2 , and FIG. 5 is a schematic diagram of the enlarged structure of area A in the atomizer shown in FIG. 3 .

The atomizer 100 includes an atomizing shell 10, an atomizing seat 20, an atomizing core 30, a seal 40, a base 50 and an end cap 60, the atomizing seat 20 is embedded in the atomizing shell 10, and the atomizing core 30 and the sealing member 40 are connected with the atomizing seat 20, the base 50 covers the open end of the atomizing housing 10 and cooperates with the atomizing seat 20 to fix the atomizing core 30 and the sealing member 40, and the end cap 60 further covers the base 50 and covers the open end of the atomizing housing 10 , and the end cap 60 engages with the atomizing housing 10 to fix the base 50 .

In other embodiments, the end cap 60 may not be provided, and the base 50 is fixed on the atomizing housing 10 by fasteners such as screws or pins; or, the base 50 is directly engaged with the atomizing housing 10 .

Referring to Fig. 5, the atomizing core 30 has a liquid-absorbing surface 32 and an atomizing surface 34, and the atomizing core 30 absorbs the atomizable substrate through the liquid-absorbing surface 32, and atomizes the atomizable substrate on one side of the atomizing surface 34 into Aerosols for user inhalation. The liquid-absorbing surface 32 and the atomizing surface 34 can be two surfaces spaced apart, for example, the liquid-absorbing surface 32 and the atomizing surface 34 are two sides facing away from each other, or the liquid-absorbing surface 32 and the atomizing surface 34 are adjacent The two sides, or the liquid absorbing surface 32 and the atomizing surface 34 can also be two different parts on the same side, which is not specifically limited in this application.

As shown in FIGS. 3 to 5 , the atomizing housing 10 includes a liquid storage bin 12 and an air outlet pipe 14 , the liquid storage bin 12 has a cylindrical structure with one end closed and the other end open, and the air outlet pipe 14 is located in the liquid storage bin 12 . It is connected to the closed end of the liquid storage bin 12 and communicated with the outside through the closed end, and the user absorbs the aerosol generated in the nebulizer 100 through the end communicated with the outside through the outlet pipe 14 .

The atomization seat 20 is embedded in the liquid storage bin 12 from the open end of the liquid storage bin 12, and one end of the air outlet pipe 14 is plugged into the aerosol outlet 21 of the atomization seat 20, and the atomization seat 20 and the liquid storage bin 12 and between the outlet pipe 14 and the aerosol outlet 21 are sealed to prevent liquid leakage.

In this embodiment, the atomizing seat 20 is provided with a first liquid lowering channel 1 and a second liquid lowering channel 3 , and both the first liquid lowering channel 1 and the second liquid lowering channel 3 are connected to the liquid storage chamber 12 for the liquid draining.

In other embodiments, grooves are provided on the outer side wall of the atomization seat 20 or the inner side wall of the liquid storage bin 12, and the outer side wall of the atomization seat 20 and the inner side wall of the liquid storage bin 12 cooperate to form the first lower liquid Channel 1 and the second lower liquid channel 3. Alternatively, a first liquid lowering channel 1 and a second liquid lowering channel 3 are provided on the inner side wall of the liquid storage bin 12 . Alternatively, one of the atomization seat 20 and the liquid storage bin 12 is provided with a first liquid lowering channel 1 , and the other is provided with a second liquid lowering channel 3 , which is not specifically limited in this application.

As shown in FIG. 6 , FIG. 6 is a schematic cross-sectional structure diagram of the atomizing seat in the atomizer shown in FIG. 4 . The atomizing seat 20 is further provided with a receiving cavity 22 , and the atomizing core 30 is embedded in the containing cavity 22 , and the atomizing core 30 is sealed and connected with the atomizing seat 20 to prevent liquid leakage.

In this embodiment, referring to FIG. 5 and FIG. 6 , the atomization seat 20 is also provided with an atomization chamber 24, which is directly connected to the air outlet pipe 14, and the atomization chamber 24 is located on the side where the atomization surface 34 is located, namely The atomizing surface 34 faces the air outlet pipe 14 . Therefore, the aerosol generated in the atomization chamber 24 can be directly directed to the user's mouth through the air outlet pipe 14, which relatively shortens the distance from the aerosol to the user's mouth, reduces the heat dissipation time of the aerosol, and makes the temperature of the aerosol reaching the user's mouth even higher. High, and the aerosol can directly reach the oral cavity without passing through the condensation groove on the atomizing seat 20, so the aerosol relatively carries less moisture and presents a better taste to the user.

The liquid-absorbing surface 32 is a side of the atomizing core 30 that is away from the atomizing surface 34 , and the seal 40 is embedded in the accommodation chamber 22 of the atomizing seat 20 to be connected with the atomizing seat 20 and connected to the atomizing core 30 Cooperate to form the liquid absorption channel 2, the base 50 is pressed against the side of the seal 40 away from the atomization core 30, so that the seal 40 cooperates with the atomization seat 20 to fix the atomization core 30, and the liquid absorption surface 32 is the side of the liquid absorption channel 2 part of the inner wall.

Specifically, referring to FIG. 6 and FIG. 7 , FIG. 7 is a structural schematic diagram of another viewing angle of the atomizing seat in the atomizer shown in FIG. 4 . The accommodating chamber 22 includes a communicating first chamber 220 and a second chamber 222, the first chamber 220 is arranged between the second chamber 222 and the atomizing chamber 24 and communicates with each other, wherein the chamber of the first chamber 220 The body space is smaller than the cavity space of the second cavity 222 , the atomizing core 30 is embedded in the first cavity 220 and sealed with the first cavity 220 , and the sealing member 40 is embedded in the second cavity 222 . The inner side wall of the accommodating cavity 22 is also provided with a plurality of bosses 23, one side of the plurality of bosses 23 is the space of the second cavity 222, and the space surrounded by the plurality of bosses 23 is the space of the first cavity 220, The sealing member 40 is also against the plurality of bosses 23, and the base 50 is also partially embedded in one side of the sealing member 40, so that the sealing member 40 seals the second cavity 222 to prevent liquid from leaking out from the second cavity 222, The end of the base 50 facing away from the atomizing core is also covered on the open end of the liquid storage chamber 12 . The first lower liquid channel 1 and the second lower liquid channel 3 extend from both sides of the atomizing core 30 to the second cavity 222 so as to communicate with the liquid suction channel 2 .

Optionally, the atomizing core 30 is provided with a liquid absorbing channel 2 , in other words, the liquid absorbing channel 2 is a passage through the atomizing core 30 , and the inner walls of the liquid absorbing channel 2 can be regarded as the liquid absorbing surface 32 . The seal 40 can also be embedded in the accommodating cavity 22 to seal one side of the atomizing core 30 to prevent liquid leakage.

In other embodiments, the atomizing surface 34 of the atomizing core 30 faces away from the air outlet pipe 14 , while its liquid absorbing surface 32 faces toward the air outlet pipe 14 , and the atomizing seat 20 and the atomizing core 30 cooperate to form the liquid absorbing channel 2 , For example, a groove structure is formed on the side of the atomization seat 20 facing the liquid-absorbing surface 32, and the liquid-absorbing surface 32 covers the groove structure to form the liquid-absorbing channel 2, so that the liquid-absorbing surface 32 is a part of the inner wall surface of the liquid-absorbing channel 2, And the seal 40 can be arranged between the atomizing seat 20 and the atomizing core 30 to prevent liquid leakage.

In some embodiments, referring to FIG. 4 to FIG. 6, the first lower liquid channel 1 is a capillary channel, and the characteristic dimension of the cross-section of the first lower liquid channel 1 along its extending direction is smaller than that of the second lower liquid channel 3 along which it extends. The characteristic dimension of the cross-section of the direction. The characteristic size is the minimum size of the lower liquid channel, for example, if the cross section of the lower liquid channel is circular, then it is its radial dimension; if the cross section of the lower liquid channel is rectangular, then the characteristic size is the width dimension; if the lower The cross-section of the liquid channel is elliptical, and the characteristic dimension is the minor axis dimension. Wherein the lower liquid channel here includes the first lower liquid channel 1 and the second lower liquid channel 3 .

The first liquid lowering channel 1 is a capillary channel, and the second liquid lowering channel 3 can be a capillary channel or a non-capillary channel.

The characteristic size of the cross section of the first lower liquid channel 1 along its extending direction is smaller than the characteristic size of the cross section of the second lower liquid channel 3 along its extending direction, specifically understood as the first lower liquid channel 1 and the second lower liquid channel 3 The size relationship between the feature dimensions at the same position along the extension direction. Therefore, it can be ensured that the first liquid lowering channel 1 is narrower than the second liquid lowering channel 3 , and the capillary force of the first liquid lowering channel 1 on the liquid is stronger, so the rate of liquid draining from the first liquid lowering channel 1 is faster.

The first lower liquid channel 1 and the second lower liquid channel 3 can be a channel structure with uniform size, that is, the dimensions in the extension direction are uniform everywhere, for example, the size characteristics of the first lower liquid channel 1 are all 0.5mm, and the second The size characteristics of the second liquid channel 3 everywhere are 3.2mm.

The first lower liquid channel 1 and the second lower liquid channel 3 may also be channel structures whose dimensions vary along the extending direction.

Specifically, referring to FIG. 8 , FIG. 8 is a fluid force analysis diagram of the first liquid lower channel 1 and the second liquid lower channel 3 when they are filled with liquid. When filling the liquid, the liquid is subjected to the joint action of gravity, capillary force and flow resistance, and the liquid per unit volume at the lower liquid ports of the first lower liquid channel 1 and the second lower liquid channel 3 is respectively taken for analysis, and the liquid at the two places is subjected to The gravity is equal to G1=G2, where G1 is the gravity of the unit volume liquid at the first lower liquid channel 1, and G2 is the gravity of the unit volume liquid at the second lower liquid channel 3; The capillary force obtained is greater, that is, FT1>FT2, where FT1 is the capillary force experienced by a unit volume of liquid at the lower liquid port of the first lower liquid channel 1, and FT2 is the lower liquid port of the second lower liquid channel 3 The capillary force experienced by a unit volume of liquid; and the flow resistance is positively correlated with the flow rate of the liquid (the initial flow velocity of the liquid is 0, and the flow resistance is 0), that is, f1=f2=0, where f1 is the first liquid The flow resistance of the unit volume of liquid at the lower liquid port of channel 1, f2 is the flow resistance of the unit volume of liquid at the lower liquid port of the second lower liquid channel 3; The driving force for the downward flow of the liquid at the liquid port is greater, and the liquid is preferentially discharged from the first liquid lowering channel 1 , and then squeezes the gas in the liquid suction channel 2 to be discharged from the second liquid lowering channel 3 .

Further studies have found that, at the beginning of liquid filling, the flow resistance increases with the increase of the liquid velocity, and the smaller the size of the lower liquid port, the greater the flow resistance of the liquid and the slower the liquid filling speed.

Referring to Fig. 9, Fig. 9 is a diagram of the distribution of liquid and gas in the atomizer at 0.4s at the beginning of liquid filling for models with different lower liquid port sizes. In the model shown in Figure 9(a), the liquid is discharged from the lower liquid channel with a characteristic size of 0.4mm, and exhausted from the lower liquid channel with a characteristic size of 2.9mm; The liquid is discharged from the lower liquid channel with a characteristic size of 2.9 mm; in the model of Figure 9(c), the liquid is first discharged from the lower liquid channel with a characteristic size of 2.9 mm, and the liquid is discharged from the lower liquid channel with a characteristic size of 5.0 mm In the model shown in Figure 9(d), the liquid is discharged from the lower liquid channel with a characteristic size of 2.9 mm, and then exhausted from the lower liquid channel with a characteristic size of 7.0 mm.

In the above model, the liquid is always discharged from the side of the lower liquid port with smaller characteristic size, and the smaller the lower liquid port size, the slower the liquid discharge speed.

Further studies have found that when the characteristic dimensions of the first lower liquid channel 1 and the second lower liquid channel 3 are both in the range of 0.4mm to 7.0mm, the liquid always flows from the side of the lower liquid port with the smaller characteristic size. Liquid, that is, when filling the liquid, the liquid is always discharged from the first liquid passage 1, and exhausted from the second liquid passage 3.

Specifically, it is found in the research that the flow resistance increases with the increase of the flow rate of the liquid, and when the characteristic size of the first lower liquid channel 1 is lower than 0.4 mm, the resistance of the liquid in the first lower liquid channel 1 will be too large , it will not be possible to ensure that the preset flow rate of the first lower liquid channel 1 is greater than the preset flow rate of the second lower liquid channel 3; and when the characteristic size exceeds 7.0mm, the capillary force of the first lower liquid channel 1 is different from that of the second lower liquid channel The influence of the capillary force of 3 on the preset flow rate is roughly the same, and it will not be able to ensure the priority of liquid discharge from the first liquid discharge channel 1. And in the range of 0.4 mm to 7.0 mm, the liquid in the liquid storage chamber 12 is always discharged from the first liquid lower channel 1 with smaller characteristic size and exhausted from the second liquid lower channel 3 during liquid filling.

The characteristic size of the first lower liquid channel 1 can be 0.4mm, 0.6mm, 0.8mm, 1.0mm, 1.2mm, 1.4mm, 1.6mm, 1.8mm or 2.0mm, etc., and the characteristic size of the second lower liquid channel 3 can be 1.6mm, 2.0mm, 2.4mm, 2.9mm, 3.2mm, 3.6mm, 4.2mm, 4.8mm, 5.4mm, 5.8mm or 6.2mm, etc.

In another embodiment, structural features can also be provided on the first lower liquid channel 1, the liquid suction channel 2 and the second lower liquid channel 3 to change their preset flow rates, so that the first liquid lower channel 1 to The preset flow rate in the direction of the liquid suction channel 2 is greater than the preset flow rate in the direction 3 from the second lower liquid channel 3 to the liquid suction channel.

Specifically, referring to FIG. 10 , FIG. 12 and FIG. 13 , the atomizer 100 also includes a flow rate adjustment structure 80 , and the flow rate adjustment structure 80 is arranged in the first lower liquid channel 1 , the liquid suction channel 2 and the second lower liquid channel 3 . At least one, the flow rate adjustment structure 80 makes the preset flow rate from the first lower liquid channel 1 to the liquid suction channel 2 greater than the preset flow rate from the second lower liquid channel 3 to the liquid suction channel 2 .

As shown in Figure 10, the flow velocity adjustment structure 80 can be a flow velocity acceleration structure 82, and the flow velocity acceleration structure 82 is arranged on the first lower liquid channel 1 and/or the liquid suction channel 2, so as to relatively improve the flow rate of the first liquid lower channel 1 and/or the suction channel 2. The preset flow rate of the liquid channel 2, so that the preset flow rate from the first lower liquid channel 1 to the liquid suction channel 2 is greater than the preset flow rate from the second lower liquid channel 3 to the liquid suction channel 2.

Optionally, the flow speed accelerating structure 82 is a capillary groove structure extending along the direction from the first lower liquid channel 1 to the liquid suction channel 2 . Specifically, the flow speed-up structure 82 can be a capillary groove structure arranged on the side wall forming the first lower liquid channel 1, or the flow speed-up structure 82 can be arranged on the side wall forming the first lower liquid channel 1 and the liquid suction channel capillary structure.

Optionally, the flow speed accelerating structure 82 may also be components such as micro water pumps.

In this embodiment, the flow speed accelerating structure 82 is arranged on the first liquid lowering channel 1 , and the preset flow rate of the first liquid lowering channel 1 is greater than the preset flow rate of the second liquid lowering channel 3 .

Referring to FIG. 11 , FIG. 11 is another structural schematic view of the atomizing seat in the atomizer shown in FIG. 2 .

In this embodiment, the flow speed accelerating structure 82 is the capillary groove 25 .

Among the first lower liquid channel 1 and the second lower liquid channel 3, only the wall surface of the first lower liquid channel 1 is provided with a plurality of capillary grooves 25, so as to use the structure of the capillary groove 25 to destroy the surface of the liquid flowing through the first lower liquid channel 1 At the same time, the capillary force of the capillary groove 25 is used to absorb and divert the liquid in the liquid storage chamber 12, so that the liquid accelerates to flow in the direction of the liquid suction channel 2; while no capillary groove is formed in the second lower liquid channel 3 25, and in a specific embodiment, the wall surface of the second lower liquid channel 3 is a smooth wall surface, so as to facilitate the rise of air bubbles to the liquid storage chamber 12.

Specifically, the channel structure dimensions of the first lower liquid channel 1 and the second lower liquid channel 3 are the same, but in the first lower liquid channel 1 and the second lower liquid channel 3, only the wall surface of the first lower liquid channel 1 is provided with some capillaries. The groove 25 and the capillary groove 25 can be formed by a plurality of liquid guide walls 26 protruding from the inner surface of the first lower liquid channel 1 at intervals, and the plurality of liquid guide walls 26 are arranged along the extending direction of the first liquid lower channel 1 .

The liquid power of the liquid in the first liquid passage 1 mainly comes from the gravity of the liquid itself and the capillary force of the capillary groove 25; and the liquid power of the liquid in the second liquid passage 3 mainly comes from the gravity of the liquid itself. Compared with the first liquid passage 1, the power of the liquid in the second liquid passage 3 is smaller, so the preset flow rate of the liquid flowing through the first liquid passage 1 is greater than that of the liquid flowing through the second liquid passage 3 Preset flow rate. Therefore, when the first liquid lowering channel 1, the suction channel 2, and the second liquid lowering channel 3 are fed into the liquid, the liquid in the liquid storage chamber 12 is preferentially fed from the first liquid lowering channel 1 with a preset flow rate and squeezed out. Press the gas in the first liquid lowering channel 1, the liquid suction channel 2 and the second liquid lowering channel 3 to enter the liquid storage tank 12 from the end of the second liquid lowering channel 3 that communicates with the liquid storage chamber 12, and the liquid fills the first liquid lowering channel in turn. Channel 1, liquid suction channel 2 and second lower liquid channel 3, because the liquid starts to fill from one end of the liquid suction channel 2, the gas in the liquid suction channel 2 is under greater pressure on the side of the liquid, so the liquid suction channel can The gas in 2 is discharged from the other end, making it difficult for air bubbles to exist in the suction channel 2 during the liquid filling process.

For further explanation, assuming that the preset flow rates of the first lower liquid channel 1 and the second lower liquid channel 3 are the same, and the first liquid lower channel 1 and the second lower liquid channel 3 enter liquid at the same time, then the two ends of the suction channel 2 are simultaneously Liquid intake will make it difficult to discharge part of the gas in the liquid absorption channel 2 and exist in the liquid absorption channel 2, so the liquid intake area of the atomizing core 30 will decrease during the atomization liquid intake process, and the liquid intake rate will decrease. It is easy to cause insufficient liquid supply to the atomizing core 30 .

Therefore, the present application sets the preset flow rate from the first lower liquid channel 1 to the liquid suction channel 2 greater than the preset flow rate from the second lower liquid channel 3 to the liquid suction channel 2, so that the liquid at both ends of the liquid suction channel 2 There is a difference in speed, so that during the liquid filling process, one end of the suction channel 2 enters the liquid and the other end exhausts, so that the gas in the liquid suction channel 2 is difficult to adhere to and stay in the liquid suction channel 2, avoiding the memory of the liquid suction channel 2 Insufficient liquid supply to the liquid-absorbing surface 32 is caused by air bubbles.

Referring to Fig. 12, the flow rate adjustment structure 80 can also be a flow rate slowing structure 84, and the flow rate slowing structure 84 is arranged on the second lower liquid channel 3 to relatively reduce the preset flow rate of the second lower liquid channel 3, so that the first lower liquid channel The preset flow rate from the liquid channel 1 to the liquid suction channel 2 is greater than the preset flow rate from the second lower liquid channel 3 to the liquid suction channel 2 .

The flow speed slowing structure 84 can be a deceleration net structure arranged in the second lower liquid passage 3, and the deceleration net structure can be provided with one layer, two layers or three layers along the extending direction of the second lower liquid passage 3. The structure is provided with a fine mesh to reduce the speed of the liquid filling through the fine mesh structure, and it can also be exhausted.

The flow speed slowing structure 84 can also be a baffle structure arranged at the liquid inlet of the second lower liquid passage 3, so that the liquid inlet direction of the liquid inlet is different from the extension direction of the second lower liquid passage 3, thereby slowing down the flow rate. The filling rate is such that the preset flow rate from the first lower liquid channel 1 to the liquid suction channel 2 is greater than the preset flow rate from the second lower liquid channel 3 to the liquid suction channel 2 .

Specifically, the flow velocity slowing structure 84 is disposed on the atomizing seat 20 .

Referring to FIG. 13 , the flow rate adjustment structure 80 can be a diversion structure 86 with bidirectional flow rates inconsistent, and the diversion structure 86 is arranged at least one of the liquid suction channel 2 , the first lower liquid channel 1 and the second lower liquid channel 3 . In other words, the forward flow velocity and the reverse flow velocity of the flow guide structure 86 are different, and the forward flow velocity of the flow guide structure 86 is greater than its reverse flow velocity.

The diversion structure 86 can be arranged on the first lower liquid channel 1 and/or the liquid suction channel 2 in the forward direction, then the liquid flows along the direction from the first lower liquid channel 1 to the liquid suction channel 2 when filling the liquid, that is, the liquid flows along the direction of the guide channel 1. The positive flow of the structure 86; the flow guide structure 86 can be arranged in the second lower liquid channel 3 in reverse, and when the liquid flows from the second lower liquid channel 3 to the liquid suction channel 2, the liquid flows along the reverse direction of the flow guide structure 86 Alternatively, the above-mentioned two arrangements of the guide structure 86 are combined, so that the preset flow rate in the direction from the first lower liquid channel 1 to the liquid suction channel 2 is greater than that in the direction from the second lower liquid channel 3 to the liquid suction channel 2 preset flow rate.

Specifically, the flow guide structure 86 can be arranged on at least one of the atomization seat 20, the atomization core 30 and the sealing member 40, and the atomization seat 20, the atomization core 30 and the sealing member provided with the flow guide structure 86 At least one of 40 also cooperates with the liquid absorption surface 32 of the atomization core 30 to form the liquid absorption channel 2 .

Referring to FIG. 14 , FIG. 14 is a schematic diagram of another axial structure of the seal in the atomizer shown in FIG. 4 .

In this embodiment, the diversion structure 86 is a herringbone groove structure 44 arranged on the sealing member 40, and the sealing member 40 cooperates with the liquid-absorbing surface 32 of the atomizing core 30 to form the liquid-absorbing channel 2, that is, the liquid-absorbing surface 32 The cover is arranged on the fishbone groove structure 44 to form the liquid suction channel 2 .

Optionally, referring to FIG. 15 , the flow guiding structure 86 may also include a plurality of shift blocks 860 arranged at intervals. The shift blocks 860 are arranged on both side walls of the liquid suction channel 2, and the plurality of shift blocks 860 on each side are spaced apart. Setting, the shift block 860 includes a guiding slope 861 and a blocking surface 862, the guiding slope 861 and the blocking surface 862 are arranged at an acute angle, and the blocking surface 862 is perpendicular to the side wall of the liquid suction channel 2, wherein the liquid first flows through the guiding slope 861 and then passes through the blocking surface 862 is the forward flow velocity, the liquid first flows through the blocking surface 862 and then the guiding slope 861 is the reverse flow velocity, because the resistance of the blocking surface 862 to the liquid is greater than the resistance of the guiding slope 861 to the liquid, so it can be formed in the suction channel 2 The current phenomenon of inconsistent flow rates in both directions.

The herringbone groove structure 44 and the shift block 860 can also be arranged on the atomizing seat 20 or the atomizing core 30 .

In this embodiment, the first end of the fishbone groove structure 44 communicates with the first lower liquid passage 1, and the second end of the fishbone groove structure 44 communicates with the second lower liquid passage 3; The flow velocity from one end to the second end is positive, and the liquid flows along the second end of the fishbone groove structure 44 to the first end in reverse flow velocity, and the forward flow velocity is greater than the reverse flow velocity.

As shown in FIG. 16 , FIG. 16 is a top structural schematic diagram of the sealing member shown in FIG. 14 . The fishbone groove structure 44 includes a main groove section 440 and several branch groove sections 442 arranged on at least one side of the main groove section 440. The first end of the main groove section 440 communicates with the first lower liquid passage 1, and the second The end communicates with the second lower liquid passage 3; wherein, the main groove section 440 is a capillary groove, and the angle a between the extending direction of the branch groove section 442 and the extending direction of the main groove section 440 is an acute angle.

One end of the branch groove section 442 communicates with the trunk groove section 440 , and the other end is a closed end. Several branch groove sections 442 can be arranged on one side or both sides of the trunk groove section 440, and some branch groove sections 442 arranged on both sides of the trunk groove section 440 can be distributed symmetrically or misplaced. The acute angles formed between the extending directions of the groove segments 440 may be the same or different, for example, each acute angle increases or decreases gradually.

Wherein, the extending direction of the main groove section 440 is from the first end to the second end, and the extending direction of the branch groove section 442 is from the end communicating with the main groove section 440 as the starting position to the closed end.

In this embodiment, both the main groove section 440 and the branch groove section 442 are grooves with uniform width, and the included angle a between the extending direction of the branch groove section 442 and the extending direction of the main groove section 440 is the center of the branch groove section 442. Angle a between the bit line and the median line of the trunk slot segment 440 .

Optionally, the branch groove segment 442 is a special-shaped groove segment, and its extending direction may also be the extending direction of the median line from the open end to the closed end.

The main groove section 440 is a capillary groove. When the liquid flows from the first end of the fishbone groove structure 44 to its second end, the angle a between the extension direction of the branch groove section 442 and the extension direction of the main groove section 440 is Acute angle, at the junction of the wall surface of the main groove section 440 and the branch groove section 442, the wetting direction of the liquid from the wall of the main groove section 440 to the wall surface of the branch groove section 442 is the same as the flow direction of the liquid in the main groove section 440, The liquid can smoothly fill the branch groove section 442 along the wall surface and continue to flow toward the second end of the fishbone groove structure 44 .

When the liquid flows from the second end of the fishbone groove structure 44 to its first end, at the junction of the wall surface of the main groove section 440 and the branch groove section 442, the liquid flows from the wall of the main groove section 440 to the wall surface of the branch groove section 442. The wetting direction is opposite to the flow direction of the liquid in the main groove section 440, which increases the wetting difficulty of the liquid entering the branch groove section 442 from the main groove section 440, so that there is a stagnation phenomenon in the flow of the liquid, so that the liquid flow rate slows down.

Therefore, the forward flow velocity of the fishbone groove structure 44 is greater than the reverse flow velocity of the fishbone groove structure 44, that is, there is a difference in the liquid inlet rate at the two ends of the liquid suction channel 2 itself. When filling liquid, the first end of the fishbone groove structure 44 enters The liquid velocity is fast, and then the gas in the liquid suction channel 2 is squeezed out from its second end, and the gas in the liquid suction channel 2 will be gradually discharged during the liquid filling process.

Further, the branch groove section 442 includes a first wall surface 443 and a second wall surface 445 spaced apart, and the first wall surface 443 and the second wall surface 445 are connected to the trunk groove section 440, and the first wall surface 443 is closer to the trunk groove than the second wall surface 445 At the first end of the section 440, the angle b formed between the first wall surface 443 and the side wall surface of the trunk groove section 440 connected thereto is greater than 90°, and the second wall surface 445 and the side wall surface of the trunk groove section 440 connected thereto form The included angle c is less than 90°.

Because the trunk groove section 440 is a capillary groove, the trunk groove section 440 has a capillary action on the liquid, and the angle b formed between the first wall surface 443 and the side wall surface of the trunk groove section 440 connected to it is greater than 90°, thus the fishbone When the liquid flowing from the first end to the second end of the groove structure 44 passes through the junction of the main groove section 440 and the first wall surface 443, the liquid constitutes a non-wetting liquid, so the liquid can smoothly expand and infiltrate to the first wall surface. The wall surface 443 fills the branch groove section 442 along the first wall surface 443 and continues to flow to the second end of the fishbone groove structure 44; the angle c formed by the second wall surface 445 and the side wall surface of the trunk groove section 440 connected to it is less than 90° , so when the liquid flowing from the second end of the fishbone groove structure 44 to its first end passes through the junction of the main groove section 440 and the second wall surface 445, the liquid constitutes the wetting liquid, which can increase its adsorption on the wall surface. ability, increases the difficulty of liquid expansion and infiltration to the second wall surface 445, thus slowing down the flow of liquid, so that the speed of liquid flowing through the fishbone groove structure 44 in different directions is different, and then when the liquid suction channel 2 is filled with liquid, The first end that enters the liquid quickly enters the liquid, and the second end that enters the liquid slowly exhausts.

Further, the branch groove section 442 is a capillary groove, so that the capillary force experienced by the liquid in the branch groove section 442 is increased to facilitate the flow and filling of the liquid.

Wherein, the main groove section 440 is a capillary groove, which is beneficial to transport the liquid to the atomizing surface 34 to reduce the residual liquid in the fishbone groove structure 44 . The branch groove section 442 is a capillary groove, which can further increase the speed and range of transporting the liquid to the atomizing surface 34 , so that the atomizing surface 34 is more fully covered, and the residual liquid in the herringbone groove structure 44 is less.

The branch groove section 442 can also be a non-capillary groove, and then the branch groove section 442 can store more liquid.

As shown in FIG. 17 , FIG. 17 is another schematic top view of the seal in the atomizer shown in FIG. 4 . The fishbone groove structure 44 also includes a liquid-accumulating groove section 446, the main groove section 440 communicates with the liquid-accumulating groove section 446 and passes through the liquid-accumulating groove section 446, that is, the liquid-accumulating groove section 446 is located in the middle of the extension path of the main groove section 440, Wherein the width dimension A of the liquid collecting groove section 446 along its extending direction is greater than the width dimension B of the trunk groove section 440 . The liquid collecting groove section 446 is a non-capillary groove, and the width dimension A of the liquid collecting groove section 446 is smaller than or equal to the width dimension C of the fishbone groove structure 44 along its extending direction.

For example, the width dimension A of the liquid collecting groove section 446 is equal to the width dimension C of the fishbone groove structure 44, so that the liquid collecting groove section 446 has a relatively larger liquid storage space, and it will not affect the structure of the fishbone groove structure 44. The characteristics of the difference in forward and reverse flow rates have any effect.

The number of herringbone groove structures 44 can be one or more, and the number of herringbone groove structures 44 spans the liquid-absorbing surface 32, wherein a plurality of herringbone groove structures 44 can be arranged side by side to occupy as much space as possible corresponding to the liquid-absorbing surface. The area on the surface 32 makes the liquid absorption rate of the liquid absorption surface 32 higher and the liquid supply more uniform, and the flow guide wall 43 between the adjacent herringbone groove structures 44 can also be liquid absorption cotton, porous glass or porous Porous substrates such as ceramics to further improve the liquid absorption rate and the uniformity of liquid supply.

Referring to Fig. 10, Fig. 12 and Fig. 18 in conjunction, Fig. 18 is a schematic diagram of another axial structure of the seal in the nebulizer shown in Fig. When the liquid channel 3 is lowered, the sealing member 40 cooperates with the atomizing core 30 to form the liquid absorption channel 2 .

Specifically, the side of the seal 40 facing the liquid-absorbing surface 32 is provided with a liquid-guiding groove 42, the liquid-guiding groove 42 straddles the liquid-absorbing surface 32, and the two ends of the liquid-guiding groove 42 communicate with the first lower liquid channel 1 and the second liquid channel 1 respectively. The lower liquid passage 3 , the sealing member 40 cooperates with the atomizing core 30 so that the liquid absorption surface 32 covers the liquid guide groove 42 to form the liquid absorption passage 2 .

Optionally, the liquid guide groove 42 can also be arranged on the liquid suction surface 32 , and the sealing member 40 covers the liquid guide groove 42 to form the liquid suction channel 2 .

As shown in Figure 18, the liquid guiding groove 42 can be a large-sized straight-through groove, that is, no other structural parts are arranged inside the groove, and the area of the straight-through groove is as close as possible to the area of the liquid-absorbing surface 32, and the straight-through groove can be It has a deep depth so that it does not have capillary action, or the through groove can have a relatively shallow depth so that it has capillary action when cooperating with the liquid absorption surface 32 to facilitate transporting the liquid at the bottom of the groove to the liquid absorption surface 32 .

Further, referring to FIG. 19 , FIG. 19 is a schematic view of another axial structure of the seal in the atomizer shown in FIG. 4 .

The bottom wall of the liquid guide groove 42 is provided with at least one flow guide wall 43, and the flow guide wall 43 divides the liquid guide groove 42 into at least two capillary grooves 420. The capillary force of the capillary groove 420 on the liquid can accelerate the liquid through the liquid guide groove. The flow rate of 42 is also conducive to transporting the residual liquid at the bottom of the capillary groove 420 to the liquid absorption surface 32, reducing the residual amount.

As shown in FIG. 19 , two flow guide walls 43 are provided on the bottom wall of the liquid guide groove 42 , and the two flow guide walls 43 divide the liquid guide groove 42 into three parallel capillary grooves 420 . There may also be three or four guide walls 43, which will not be repeated here.

Further, the width dimension of the capillary groove 420 along its extending direction is smaller than its depth dimension, and the number of the capillary groove 420 is multiple and arranged side by side along its width direction, so as to utilize the depth direction of the liquid guiding groove 42 to increase its capacity for liquid , and a plurality of capillary grooves 420 arranged side by side can supply liquid to the liquid-absorbing surface 32 more uniformly.

Wherein, the capillary groove 420 straddles the liquid-absorbing surface 32 of the atomizing core 30. When filling liquid, the liquid receives a relatively large capillary force in the capillary groove 420, which in turn helps the liquid to fill in the liquid guide groove 42 and the flow of the liquid, further The capillary action of the liquid guide groove 42 also helps to reduce the residual liquid in the liquid guide groove 42 and improve the utilization rate of the liquid.

For further illustrating how much of the residual amount in the groove of two kinds of liquid guide grooves 42, now provide the chart 20 drawn after the test verification, as shown in Figure 20, in the embodiment that the liquid guide groove 42 is divided into capillary groove 420, guide The amount of liquid remaining in the liquid tank 42 is below 5 mg; in the embodiment in which the liquid guiding groove 42 is a straight-through groove, the remaining liquid amount in the liquid guiding groove 42 is about 20 mg; it can be seen that by separating the liquid guiding groove 42 into multiple Each capillary groove 420 can obviously reduce the amount of residual liquid in the groove and improve the utilization rate of high liquid. The flow of liquid in the liquid guide groove 42 is subject to the joint action of capillary force and flow resistance, and the liquid guide groove 42 is set to a plurality of capillary grooves 420 to replace the liquid guide groove 42 that is a straight-through groove, which increases the size of the liquid guide groove 42. The capillary force helps the flow of liquid to fill, and also facilitates the liquid at the bottom of the liquid guide groove 42 to move upward due to capillary action and be absorbed by the liquid absorption surface 32, thereby reducing the residual liquid in the liquid guide groove 42.

Further, the flow guide wall 43 between two adjacent capillary grooves 420 is a porous matrix, and the porous matrix may be liquid absorbent cotton, porous glass or porous ceramics. The liquid-absorbing surface 32 is covered on the liquid-guiding groove 42 and is in contact with the flow-guiding wall 43. The flow-guiding wall 43 is used to transport the liquid in the liquid-guiding groove 42 to the liquid-suction surface 32, thereby making the liquid-suction surface 32 originally covered by Covering the part that cannot absorb liquid can also absorb liquid, so that the area on the liquid absorbing surface 32 that can absorb liquid is larger, and the rate of liquid supply to the atomizing core 30 is faster and more sufficient.

Alternatively, a communication port (not shown) is provided on the guide wall 43 between two adjacent capillary grooves 420, and the communication port communicates with two adjacent capillary grooves 420, so that the liquid volume in each capillary groove 420 Keeping it the same helps maintain a more even supply of liquid to the absorbent surface 32 .

Further, referring to FIG. 21 , FIG. 21 is another top structural schematic view of the sealing member in the atomizer shown in FIG. 4 . The capillary groove 420 includes a connected capillary portion 421 and a liquid storage portion 422, wherein the number of the capillary portion 421 and the liquid storage portion 422 is not limited, and the amount of liquid stored in the liquid storage portion 422 is more than that stored in the capillary portion 421, and the capillary portion 421 It has a capillary effect on the liquid, and the capillary part 421 is used to speed up the flow of the liquid to fill and reduce the residual liquid in the liquid guide groove 42. The liquid storage part 422 has no capillary effect on the liquid, and the liquid storage part 422 is used to increase the liquid suction channel 2 The internal liquid storage capacity and increase the available liquid absorption area of the liquid absorption surface 32. Wherein, the capillary part 421 or the liquid storage part 422 communicates with the corresponding first liquid lower channel 1 or the second liquid lower channel 3 .

For example, the liquid guide groove 42 includes a plurality of capillary parts 421 and a plurality of liquid storage parts 422 arranged in an array, and adjacent capillary parts 421 and liquid storage parts 422 communicate with each other; or the liquid guide groove 42 includes a plurality of capillary parts arranged in a line. The capillary part 421 communicates with a plurality of liquid storage parts 422, and the capillary part 421 and the liquid storage parts 422 are sequentially connected.

By setting the preset flow rate of the liquid from the first liquid lower channel to the liquid suction channel to be greater than the preset flow rate of the liquid from the second liquid lower channel to the liquid suction channel, when filling liquid, the liquid in the liquid storage bin is always preset Assuming that the end with a faster flow rate enters the liquid suction channel, the gas in the liquid suction channel is squeezed by the liquid flow at one end and is gradually discharged from the other end of the liquid suction channel, making it difficult for the gas to accumulate in the liquid suction channel and avoid memory loss in the liquid suction channel. Air bubbles affect the liquid supply to the liquid absorption surface, which can solve the problems of low aerosol generation efficiency in the nebulizer and easy to produce burnt taste that affects the taste, so as to effectively maintain a high aerosol generation efficiency in the nebulizer And the risk of burning smell is low.

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

Claims (18)

1. An atomizer, characterized in that the atomizer comprises:

   A liquid storage bin for storing liquid;

   A first liquid lowering channel, a liquid suction channel and a second liquid lowering channel connected in sequence, the first liquid lowering channel and the second liquid lowering channel communicate with the liquid storage bin respectively;

   The atomizing core has a liquid-absorbing surface, and the liquid-absorbing surface is at least a part of the inner wall surface of the liquid-absorbing channel;

   Wherein, when the liquid in the liquid storage chamber gradually fills the liquid suction channel, the preset flow rate of the liquid from the first liquid lower channel to the liquid suction channel is greater than that of the liquid from the second liquid lower channel. The preset flow rate from the lower liquid channel to the liquid suction channel, so that the air bubbles discharged from the liquid filling the liquid suction channel are discharged to the liquid storage bin through the second liquid lower channel.
2. The atomizer according to claim 1, characterized in that, the atomizer further comprises a flow rate adjustment structure, and the flow rate adjustment structure is arranged on the first liquid lowering channel, the liquid suction channel and the second liquid absorption channel. In at least one of the two lower liquid channels, the flow rate adjustment structure makes the preset flow rate from the first liquid lower channel to the liquid suction channel greater than that from the second liquid lower channel to the liquid suction channel. Preset flow rate.
3. The atomizer according to claim 2, wherein the flow velocity adjustment structure is a flow velocity acceleration structure, and the flow velocity acceleration structure is arranged in the first liquid lowering channel and/or the liquid suction channel.
4. The atomizer according to claim 3, characterized in that, the flow speed increasing structure is a capillary groove structure extending along the direction from the first lower liquid channel to the liquid suction channel.
5. The atomizer according to claim 2, wherein the flow rate adjustment structure is a flow rate slowing structure, and the flow rate slowing structure is arranged in the second lower liquid channel.
6. The atomizer according to claim 2, wherein the flow rate adjustment structure is a diversion structure with inconsistent flow rates in both directions, and the diversion structure is arranged on the liquid suction channel, the first liquid lowering channel and the first liquid lowering channel. At least one of the second liquid lowering channels.
7. The atomizer according to claim 6, characterized in that, the diversion structure is a fishbone groove structure, and the fishbone groove structure includes a main diversion section and at least one side of the main diversion section. A plurality of branch flow guide sections, the main flow guide section is a capillary channel, and the angle between the extension direction of the branch flow guide section and the extension direction from the first end to the second end of the main flow guide section is an acute angle.
8. The atomizer according to claim 7, wherein the branch guide section includes a first wall surface and a second wall surface spaced apart, and the first wall surface and the second wall surface are connected to the main trunk. The side wall of the flow section is connected, the first wall is closer to the first end of the main flow guiding section relative to the second wall, and the first wall is connected to the side wall of the main flow guiding section. The formed included angle is greater than 90°, and the included angle formed by the second wall surface and the side wall surface of the trunk diversion section connected thereto is smaller than 90°.
9. The atomizer according to claim 7 or 8, characterized in that, the branch guide section is a capillary blind channel.
10. The atomizer according to claim 7, wherein the fishbone groove structure further includes a liquid-accumulating section, and the main guide section communicates with the liquid-accumulating section and passes through the liquid-accumulating section, wherein The width dimension of the liquid collecting section along its extending direction is larger than the width dimension of the main diversion section.
11. The atomizer according to claim 1, wherein the first lower liquid channel is a capillary channel, and the characteristic dimension of the cross section of the first lower liquid channel along its extending direction is smaller than that of the second lower liquid channel. The characteristic dimension of the cross-section of the liquid channel along the direction of its extension.
12. The atomizer according to claim 11, characterized in that, the characteristic dimensions of the first liquid lowering channel and the second liquid lowering channel are both in the range of 0.4 mm to 7.0 mm.
13. The atomizer according to claim 1, wherein the atomizer further comprises:

    The atomization seat is embedded in the liquid storage bin, and is provided with the first liquid lowering channel and the second liquid lowering channel, and the atomizing core is arranged on the atomizing seat;

    Wherein, the atomization seat cooperates with the atomization core to form the liquid absorption channel.
14. The atomizer according to claim 1, wherein the atomizer further comprises:

    The atomization seat is embedded in the liquid storage bin, and is provided with the first liquid lowering channel and the second liquid lowering channel, and the atomizing core is arranged on the atomizing seat;

    a seal, connected to the atomization seat, and covers the liquid-absorbing surface;

    Wherein, the sealing member cooperates with the atomizing core to form the liquid absorption channel.
15. The atomizer according to claim 14, characterized in that, the side of the sealing member facing the liquid-absorbing surface is provided with a liquid-guiding groove, the liquid-guiding groove straddles the liquid-absorbing surface, and the liquid-absorbing surface The liquid surface cover is arranged on the liquid guide groove to form the liquid suction channel.
16. The atomizer according to claim 15, wherein the liquid guide groove is a straight-through groove; or

    At least one flow guide wall is provided on the bottom wall of the liquid guide groove, and the flow guide wall divides the liquid guide groove into at least two capillary grooves.
17. The atomizer according to claim 16, wherein the guide wall is a porous matrix; or

    A communication port is provided on the guide wall.
18. An electronic atomization device, characterized in that the electronic atomization device includes a power supply and the atomizer according to any one of claims 1 to 17, the power supply is connected to the atomizer and provides The nebulizer is powered.

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