WO2023019572A1

WO2023019572A1 - Electronic atomizing device and atomizer thereof

Info

Publication number: WO2023019572A1
Application number: PCT/CN2021/113844
Authority: WO
Inventors: 谢亚军; 雷桂林; 罗智; 罗帅; 曹润
Original assignee: 深圳麦克韦尔科技有限公司
Priority date: 2021-08-20
Filing date: 2021-08-20
Publication date: 2023-02-23

Abstract

An electronic atomizing device (300) and an atomizer (100) thereof. The atomizer (100) comprises: a liquid storage cavity (10) used for storing a liquid; an atomizing core (20) in fluid communication with the liquid storage cavity (10), the atomizing core (20) comprising an atomizing surface (223) and a liquid suction surface (221), and the atomizing core (20) transmitting the liquid on the side of the liquid suction surface (221) to the side of the atomizing surface (223) by means of capillary force; and a micro-groove structure (70) located in a fluid communication channel between the liquid storage cavity (10) and the atomizing core (20), and provided on the side of the liquid suction surface (221). The liquid in the liquid storage cavity (10) is supplied to the liquid suction surface (221) by means of the micro-groove structure (70). By providing the micro-groove structure (70) on the side of the liquid suction surface (221) of the atomizing core (20), the atomizer (100) can greatly improve the duration of use of the atomizer (100) without dry burning when the atomizer (100) is used upside down, and thus the service life of the atomizer (100) can be prolonged.

Description

An electronic atomization device and atomizer thereof

【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 the existing electronic atomization device is inverted for suction, the liquid in the liquid storage chamber cannot supply liquid, which causes dry burning of the atomization components and affects the service life of the electronic atomization device.

【Content of invention】

The present application mainly provides an electronic atomization device and its atomizer to solve the problem that the electronic atomization device is prone to dry burning when it is inverted for suction.

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; an atomization core in fluid communication with the liquid storage chamber; the atomization core has an atomization surface and a liquid absorption surface, and the atomization core The force transfers the liquid on the side of the liquid-absorbing surface to the side of the atomizing surface; the micro-groove structure, the micro-groove structure is located in the fluid communication channel between the liquid storage bin and the atomizing core, And it is arranged on one side of the liquid-absorbing surface; wherein, at least part of the liquid in the liquid storage chamber supplies liquid to the liquid-absorbing surface through the microgroove structure.

In some embodiments, the microgroove structure is an assembly gap provided on one side of the liquid-absorbing surface.

In some embodiments, the microgroove structure is a capillary groove structure with consistent flow velocity in both directions.

In some embodiments, the capillary structure is a capillary channel; or

The capillary groove includes a connected capillary part and a liquid storage part.

In some embodiments, the microgroove structure is a diversion structure with inconsistent flow rates in both directions.

In some embodiments, the flow guiding structure is a fishbone groove structure, and the fishbone groove structure includes a main flow guiding section and several branch flow guiding sections arranged on at least one side of the main flow guiding section. The flow guide section is a capillary channel, and 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 flow guiding 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 flow guiding section, the The first wall is closer to the first end of the main flow guide section relative to the second wall, and the angle formed between the first wall and the side wall of the main flow guide section connected to it is greater than 90°, so The included angle formed by the second wall surface and the side wall surface of the main diversion 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 diversion section communicates with the liquid-accumulating section and passes through the liquid-accumulating section, wherein the liquid-accumulating section is along its extending direction The upper width dimension is greater than the width dimension of the main diversion section.

In some embodiments, the nebulizer also includes:

The atomization seat is embedded in the liquid storage bin, and is provided with a lower liquid channel, and the lower liquid channel communicates with the liquid storage bin and the micro-groove structure, and the atomization core is arranged on the atomizer seat;

Wherein, the micro-groove structure is arranged between the atomization seat and the atomization core; or

The micro-groove structure is arranged on the side of the atomizing seat facing the liquid-absorbing surface of the atomizing core, and the atomizing seat is in contact with the liquid-absorbing surface.

In some embodiments, the nebulizer also includes:

a seal, connected to the atomization seat; the seal has a surface, and the surface is disposed toward the liquid-absorbing surface;

Wherein, the micro-groove structure is arranged between the sealing member and the atomizing core; or

The surface is in contact with the liquid-absorbing surface, and the microgroove structure is arranged on the surface of the sealing member.

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 a micro-groove structure on one side of the liquid-absorbing surface of the atomizing core, the micro-groove structure can lock the liquid transported by the liquid storage tank through capillary action, and supply liquid to the liquid-absorbing surface, so that the atomizer can be pumped upside down. When inhaling, the micro-groove structure can lock the liquid entering it, which can effectively reduce the liquid flowing back into the liquid storage chamber in the micro-groove structure, so that the atomizer provided by the application will not stop immediately even when it is used upside down The liquid supply to the porous substrate can maintain its normal suction state when it is inverted, which greatly improves the service life of its inverted use without dry burning, and can effectively reduce the risk of dry burning when the atomizer is used upside down , can prolong the service life of the atomizer.

【Description of drawings】

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings without creative work, wherein:

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 first enlarged structure of area A in the atomizer shown in Fig. 3;

Fig. 5 is a schematic diagram of the exploded structure of the atomizer shown in Fig. 3;

Fig. 6 is a schematic cross-sectional structure diagram of the atomization seat in the atomizer shown in Fig. 5;

Fig. 7 is a schematic diagram of the second enlarged structure of area A in the atomizer shown in Fig. 3

Fig. 8 is a schematic diagram of the first structure of the seal in the atomizer shown in Fig. 5;

Fig. 9 is a second structural schematic diagram of the seal in the atomizer shown in Fig. 5;

Fig. 10 is a schematic diagram of the third structure of the seal in the atomizer shown in Fig. 5;

Fig. 11 is a schematic top view of the seal shown in Fig. 10;

Fig. 12 is another structural schematic diagram of the diversion structure;

FIG. 13 is another schematic top view of the sealing member shown in FIG. 10 .

【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.

Referring to Fig. 3, the atomizer 100 includes a liquid storage bin 10, an atomizing core 20 and a micro-groove structure 70, wherein the liquid storage bin 10 is used to store liquid, the atomizing core 20 is in fluid communication with the liquid storage bin 10, and the micro-groove structure 70 The fluid communication channel between the liquid storage bin 10 and the atomizing core 20 is arranged on one side of the liquid absorption surface 221 of the atomizing core 20, wherein the liquid in the liquid storage bin 10 at least partially passes through the microgroove structure 70 to absorb liquid Surface 221 supplies liquid.

The micro-groove structure 70 can span the entire liquid-absorbing surface 221, and all the liquid in the liquid storage bin 10 will supply liquid to the liquid-absorbing surface 221 through the micro-groove structure 70; the micro-groove structure 70 can also span part of the liquid-absorbing surface 221, Then part of the liquid in the liquid storage chamber 10 supplies liquid to the liquid-absorbing surface 221 through the micro-groove structure 70 , and the other part can supply liquid to the liquid-absorbing surface 221 without passing through the micro-groove structure 70 .

It should be noted that the microgroove structure 70 is a tiny groove structure, which has a capillary effect, and can lock the liquid in the groove when the atomizer 100 is inverted; in other words, the microgroove structure 70 has a strong The capillary force can prevent the liquid from flowing backward when the liquid has a tendency to flow backward, that is, the microgroove structure 70 can lock the liquid to prevent the liquid from flowing backward. At the same time, the capillary force of the porous matrix 22 is greater than that of the microgroove structure 70 , so the porous matrix 22 can absorb liquid from the microgroove structure 70 . Generally, the groove width of the microgroove structure 70 is 0.1-0.5mm, and the groove depth is greater than 1mm; while the pore diameter range of the porous matrix 22 is 10-50um; the capillary force of the microgroove structure 70 is lower than that of the porous matrix 22 by one Magnitude.

Specifically, the atomizing core 20 includes a porous base 22 and a heating element 24 disposed on the porous base 22 . The heating element 24 heats the porous matrix 22, and the liquid in the porous matrix 22 is heated and consumed by evaporation, and the consumed liquid needs to be replenished, otherwise a dry burning state will occur. When the atomizer 100 is turned upside down, the liquid supply to the porous substrate 22 is cut off, and the liquid in the liquid storage chamber 10 cannot be supplied normally. But because the microgroove structure 70 locks the liquid in it and does not flow back, and the capillary force of the porous matrix 22 is larger than the capillary force of the microgroove structure 70, the liquid consumed by the porous matrix 22 can be obtained from the microgroove structure 70. Supplement to avoid the phenomenon of dry burning.

The microgroove structure 70 can be a groove structure formed by cooperation of multiple parts, or a groove structure formed on some parts, which can store liquid and lock it. The capillary force is greater than the capillary force of the micro-groove structure 70, and the micro-groove structure 70 also supplies liquid to the liquid-absorbing surface 221.

The porous matrix 22 has a liquid-absorbing surface 221 and an atomizing surface 223, the heating element 24 is arranged on the atomizing surface 223, the liquid-absorbing surface 221 is used to absorb liquid, and the atomizing core 20 absorbs the liquid on the side of the liquid-absorbing surface 221 Transported to the side of the atomizing surface 223 , the heating element 24 consumes the liquid on the atomizing surface 223 , and the porous matrix 22 can continuously replenish the liquid absorbed from the liquid-absorbing surface 221 to the atomizing surface 223 for the heating element 24 to atomize. The atomizing core 2020 absorbs the atomizable base through the liquid-absorbing surface 221 , and atomizes the atomizable base on one side of the atomizing surface 223 into an aerosol for the user to absorb.

The liquid-absorbing surface 221 and the atomizing surface 223 can be two surfaces spaced apart, for example, the liquid-absorbing surface 221 and the atomizing surface 223 are two sides facing away from each other, or the liquid-absorbing surface 221 and the atomizing surface 223 are adjacent The two sides, or the liquid-absorbing surface 221 and the atomizing surface 223 can also be two different parts on the same side, which is not specifically limited in this application.

When the electronic atomization device 300 is inverted for suction, the liquid stored in the liquid storage chamber 10 is located below the atomizing core 20, that is, the structure shown in Figure 3 is inverted for suction. The liquid on the liquid level 221 will all flow back to the liquid storage chamber 10, the atomizing core 20 will not be supplied with liquid, and when the heating element 24 continues to consume liquid and cannot receive sufficient liquid, dry burning will occur. Seriously damage the service life of the atomizing core 20.

In this application, a micro-groove structure 70 is provided on one side of the liquid-absorbing surface 221 of the atomizing core 20, and the micro-groove structure 70 can lock the liquid transported by the liquid storage chamber 10 through capillary action, and supply the liquid to the liquid-absorbing surface 221. liquid, so that when the atomizer 100 is inverted for suction, the micro-groove structure 70 can lock the liquid that enters it, thereby effectively reducing the liquid that flows back into the liquid storage chamber 10 in the micro-groove structure 70. The reason is that the inverted When the liquid in the micro-groove structure 70 is not enough to overcome the capillary force of the micro-groove structure 70 to return to the liquid storage chamber 10, and the heating element 24 is still consumed, there is a driving force to make the micro-groove structure 70 continue to absorb liquid. The surface 221 supplies liquid and continues to reach the heating element 24 through the liquid absorption surface 221, so that the atomizer 100 provided by the application will not immediately stop the liquid supply to the atomizing core 20 even when it is used upside down, but can maintain it in an upside-down position. The normal suction state when the atomizer 100 is used upside down greatly increases the use time of the atomizer 100 without dry burning, which can effectively reduce the risk of dry burning when the atomizer 100 is used upside down, and can prolong the service life of the atomizer 100.

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

The atomizer 100 includes a liquid storage chamber 10, an atomizing core 20, an atomizing seat 30, a sealing member 40, a base 50 and an end cap 60, the atomizing seat 30 is embedded in the liquid storing chamber 10, the atomizing core 20 and the The seals 40 are all connected with the atomization seat 30. The base 50 is sealed on the open end of the liquid storage bin 10 and cooperates with the atomization seat 30 to fix the atomization core 20 and the seal 40. The end cap 60 is further sealed. The cover base 50 is arranged on the open end of the liquid storage bin 10 , and the end cover 60 is engaged with the liquid storage bin 10 to fix the base 50 .

In other embodiments, the end cover 60 may not be provided, and the base 50 is fixed on the liquid storage bin 10 by fasteners such as screws or pins; or, the base 50 is directly engaged with the casing of the liquid storage bin 10 .

The liquid storage bin 10 has a cylindrical structure with one end closed and the other end open. The liquid storage bin 10 is also provided with an air outlet pipe 14. The air outlet pipe 14 is connected to the closed end of the liquid storage bin 10 and communicates with the outside through the closed end. The aerosol generated in the atomizer 100 is absorbed by the end communicating with the outside through the air outlet pipe 14 .

The atomization seat 30 is embedded in the liquid storage bin 10 from the open end of the liquid storage bin 10, and one end of the air outlet pipe 14 is plugged into the aerosol outlet 31 of the atomization seat 30, and the atomization seat 30 and the liquid storage bin 10 and between the outlet pipe 14 and the aerosol outlet 31 are sealed to prevent liquid leakage.

In this embodiment, the atomizing seat 30 is also provided with a lower liquid channel 32, the lower liquid channel 32 communicates with the liquid storage chamber 10 and the micro-groove structure 70, and the atomizing core 20 is arranged on the atomizing seat 30, and then the lower liquid channel 32 and the micro-groove structure 70 form a fluid communication channel connecting the liquid storage chamber 10 and the atomizing core 20 .

In other embodiments, grooves are provided on the outer side wall of the atomization seat 30 or the inner side wall of the liquid storage bin 10, and the outer side wall of the atomization seat 30 and the inner side wall of the liquid storage bin 10 cooperate to form the lower liquid channel 32 . Alternatively, a lower liquid channel 32 is provided on the inner wall of the liquid storage bin 10 . Alternatively, at least one of the atomization seat 30 and the liquid storage bin 10 is provided with a lower liquid channel 32 , which is not specifically limited in this application.

In other embodiments, the liquid storage bin 10 and the atomization seat 30 may also be an integrated structure, that is, the atomization seat 30 may be a part of the liquid storage bin 10 .

The lower liquid channel 32 can be one, two or more, and its cross-section can be circular, oval, rectangular or irregular polygonal, etc. The lower liquid channel 32 can have capillary action or not. This is not specifically limited.

Referring to FIG. 4 and FIG. 6 together, FIG. 6 is a schematic cross-sectional structure diagram of the atomizing seat in the atomizer shown in FIG. 5 . The atomizing seat 30 is further provided with a receiving cavity 33 , and the atomizing core 20 is embedded in the containing cavity 33 , and the atomizing core 20 and the atomizing seat 30 are sealed and connected to prevent liquid leakage.

In this embodiment, the atomization seat 30 is also provided with an atomization chamber 34, which is directly connected to the air outlet pipe 14, and the atomization chamber 34 is located on the side where the atomization surface 223 is located, that is, the atomization surface 223 faces the air outlet pipe 14. Therefore, the aerosol generated in the atomization chamber 34 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 outer wall of the atomizing seat 30, so the aerosol relatively carries less moisture and presents a better taste to the user.

In this embodiment, the liquid-absorbing surface 221 is a side of the porous base 22 that is away from the atomizing surface 223, and the sealing member 40 is embedded in the accommodating cavity 33 of the atomizing seat 30 to be connected with the atomizing seat 30, and sealed The member 40 covers the liquid-absorbing surface 221 , and the base 50 abuts against the side of the sealing member 40 away from the porous substrate 22 , so that the sealing member 40 cooperates with the atomizing seat 30 to fix the porous substrate 22 .

Specifically, the sealing member 40 is embedded in the accommodating cavity 33 , and its end is also stopped on the stop portion 35 in the atomization seat 30 , and the base 50 is hooked and connected with the atomization seat 30 and matched with the stop portion 35 The sealing member 40 is clamped and fixed.

Wherein, the micro-groove structure 70 can be arranged between the sealing member 40 and the atomizing core 20, for example, the micro-groove structure 70 is an assembly gap arranged between the sealing member 40 and the atomizing core 20; or, the micro-groove structure 70 is arranged The groove structure on the side of the sealing member 40 facing the liquid-absorbing surface 221 of the atomizing core 20 .

In other embodiments, the atomizing surface 223 of the porous matrix 22 faces away from the air outlet pipe 14 , while its liquid absorption surface 221 faces the air outlet pipe 14 , and the sealing member 40 is also arranged between the atomizing seat 30 and the atomizing core 20 To prevent leakage. The micro-groove structure 70 can be arranged between the atomization seat 30 and the atomization core 20, for example, the micro-groove structure 70 is an assembly gap arranged between the atomization seat 30 and the atomization core 20; or, the micro-groove structure 70 is a set The groove structure on the side of the atomizing seat 30 facing the liquid-absorbing surface 221 of the atomizing core 20 .

In the first embodiment, the micro-groove structure 70 is an assembly gap 74 disposed on one side of the liquid-absorbing surface 221 .

Referring to FIG. 7 , FIG. 7 is a second enlarged structural schematic diagram of area A in the atomizer shown in FIG. 3 . In this embodiment, the microgroove structure 70 is an assembly gap 74 disposed between one of the sealing member 40 and the atomizing seat 30 and the liquid absorption surface 221 of the porous substrate 22 , and the lower liquid channel 32 communicates with the assembly gap 74 .

For example, the micro-groove structure 70 is the assembly gap 74 between the sealing member 40 and the liquid-absorbing surface 221 of the porous substrate 22, or the micro-groove structure 70 is the assembly gap between the atomization seat 30 and the liquid-absorbing surface 221 of the porous substrate 22 74.

The assembly gap 74 has a capillary effect, so the assembly gap 74 can store and lock liquid by capillary force, and supply liquid to the liquid-absorbing surface 221 .

Optionally, as shown in FIG. 7 , an assembly gap 74 is formed between the sealing member 40 and the liquid-absorbing surface 221 . The atomizing seat 30 is provided with a stopper 35, and the end of the sealing member 40 stops at the stopper 35, forming an assembly gap 74 with the liquid-absorbing surface 221 of the porous substrate 22 embedded in the accommodating cavity 33 .

Optionally, an assembly gap 74 is formed between the atomization seat 30 and the liquid absorption surface 221 . For example, the liquid-absorbing surface 221 faces the air outlet pipe 14 , and the porous matrix 22 is embedded in the accommodating cavity 33 , so that an assembly gap 74 is formed between the liquid-absorbing surface 221 and the atomizing seat 30 , and the assembly gap 74 has a capillary effect.

Referring to Fig. 8 and Fig. 9, Fig. 8 is a schematic diagram of the first structure of the seal in the atomizer shown in Fig. 5, and Fig. 9 is a schematic diagram of the second structure of the seal in the atomizer shown in Fig. 5 .

In the second embodiment, the microgroove structure 70 is a capillary groove structure 71 with the same bidirectional flow velocity, and the forward and reverse flow velocity of the capillary groove structure 71 is the same.

In this embodiment, referring to FIG. 4 and FIG. 8 , the sealing member 40 is connected to the atomizing seat 30 , and the sealing member 40 has a surface 41 , the surface 41 is disposed toward the liquid-absorbing surface 221 , and the surface 41 is in contact with the liquid-absorbing surface 221 , the capillary groove structure 71 is disposed on the surface 41 of the sealing member 40 .

In other embodiments, the capillary groove structure 71 can also be arranged on the surface of the atomization seat 30 facing the liquid-absorbing surface 221 of the atomizing core 20, and this surface is in close contact with the liquid-absorbing surface 221, that is, the capillary groove The structure 71 is disposed on the surface of the atomizing seat 30 in contact with the liquid-absorbing surface 221 .

Optionally, the capillary groove structure 71 can also be arranged on the liquid absorption surface 221 of the atomizing core 20 .

In the second embodiment, the microgroove structure 70 is a capillary groove structure 71, and the capillary groove structure 71 has a capillary effect. The capillary groove structure 71 shown in FIG. 9 can have a capillary effect in some areas, or as shown in FIG. 8 The capillary structure 71 has a capillary action over the entire area.

Furthermore, the capillary groove structure 71 straddles the liquid-absorbing surface 221 of the porous matrix 22 , so that the capillary groove structure 71 can store more liquid and increase the time for maintaining normal suction without dry burning when upside down. For example, the capillary groove structure 71 is arranged on the liquid-absorbing surface 221 and straddles the liquid-absorbing surface 221; Surface 221.

Optionally, the capillary groove structure 71 may not straddle the liquid-absorbing surface 221 of the porous substrate 22 , but be correspondingly disposed on part of the liquid-absorbing surface 221 .

The capillary groove structure 71 can be capillary grooves in the whole area, and can also be a capillary groove in some areas, and another part of the area can be a non-capillary groove. The groove structure 71 can also absorb surrounding liquid through capillary action and transport the liquid to the liquid absorbing surface 221 for continuous liquid supply, so that more liquid can be utilized and the amount of remaining liquid can be reduced.

Optionally, as shown in FIG. 8, the capillary groove structure 71 is a capillary through groove, and the capillary force provided by the capillary groove structure 71 helps to promote liquid filling in the capillary groove structure 71 and the flow of the liquid when filling liquid, and The capillary force of the capillary groove structure 71 can also be used to direct the liquid at the bottom of the groove to the liquid-absorbing surface 221 to reduce the residual liquid in the groove and improve the utilization rate of the liquid.

The capillary channel can be one, which straddles the liquid-absorbing surface 221 of the porous substrate 22, and has a larger width dimension and a smaller depth dimension in the direction of its extension, so as to provide the capillary channel structure 71 with a smaller depth dimension. For example, the depth dimension is 0.5mm, 0.8mm or 1.2mm, etc., so that the capillary groove structure 71 can guide the liquid at the bottom of the groove to the liquid-absorbing surface 221 through capillary force, and its width can even be close to the width of the liquid-absorbing surface 221 .

As shown in Figure 8, there can also be multiple capillary channels, and diversion walls 73 are formed between adjacent capillary channels, and the multiple capillary channels are all across the liquid-absorbing surface 221 of the porous substrate 22, and the multiple capillary channels The capillary grooves can be evenly arranged or relatively evenly arranged on the liquid-absorbing surface 221, and the width dimension in the direction of extension is smaller than its depth dimension, so as to increase its capacity to liquid by utilizing the depth dimension of the capillary grooves, and utilize the capillary grooves to The width dimension of the groove provides capillary force to guide the liquid from the bottom of the groove to the liquid-absorbing surface 221 in the direction of the top of the groove through the capillary force.

Optionally, as shown in FIG. 9 , the capillary groove structure 71 includes a connected capillary portion 710 and a liquid storage portion 711, wherein the capillary portion 710 communicates with the lower liquid channel 32, and then by setting part of the groove section as a non-capillary groove section storage The liquid part 711 increases the liquid storage capacity of the capillary structure 71, which can increase the usable time of the atomizer 100 in an abnormal state (such as an inverted state or an inclined state, etc.), so as to give the user time to eliminate the abnormal state. Among them, the capillary part 710 has a capillary effect on the liquid, and the capillary part 710 is used to speed up the flow filling of the liquid and reduce the residual liquid in the capillary groove structure 71. The liquid storage part 711 has no capillary effect on the liquid, and the liquid storage part 711 is used for Increase the liquid storage capacity in the tank and increase the available liquid absorption area of the liquid absorption surface 221 .

The number of the capillary part 710 and the liquid storage part 711 is not limited, and the respective numbers can be equal or different, and the respective numbers can be one, two, three, etc., which is not specifically limited in the present application.

The capillary structure 71 can include a capillary part 710 and a liquid storage part 711, and the lower liquid channel 32 is one, then the capillary part 710 communicates with the lower liquid channel 32, and the capillary part 710 can lock the liquid in the capillary structure 71 liquid.

The capillary groove structure 71 may also include a plurality of capillary parts 710 and a plurality of liquid storage parts 711 , there may be multiple lower liquid channels 32 , and the capillary parts 710 or liquid storage parts 711 may communicate with the corresponding lower liquid channels 32 .

Optionally, the capillary groove structure 71 includes a plurality of capillary parts 710 and a plurality of liquid storage parts 711 arranged in an array, and adjacent capillary parts 710 and liquid storage parts 711 communicate with each other; or as shown in FIG. 9 , the liquid storage tank structure 71 includes a plurality of capillary parts 710 and a plurality of liquid storage parts 711 arranged in a straight line, and the capillary parts 710 and the liquid storage parts 711 communicate in sequence.

Referring to FIG. 4 and FIG. 10 together, FIG. 10 is a schematic diagram of a third structure of the seal in the atomizer shown in FIG. 5 .

In the third embodiment, the microgroove structure 70 is a diversion structure 76 with inconsistent bidirectional flow velocity. The forward flow velocity of the diversion structure 76 is different from its reverse velocity, and the forward velocity of the diversion structure 76 is greater than its reverse velocity.

In this embodiment, as shown in FIG. 4 and FIG. 10 , the flow guide structure 76 is arranged on the side of the sealing member 40 facing the liquid-absorbing surface 221 of the atomizing core 20 , that is, the flow guide structure 76 is arranged on the seal member 40 and The absorbent surface 221 contacts the surface 41 .

In other embodiments, the flow guide structure 76 can also be arranged on the surface of the atomization seat 30 facing the liquid absorption surface 221 of the atomization core 20, and this surface is in close contact with the liquid absorption surface 221, that is, the flow guide The structure 76 is disposed on the surface of the atomizing seat 30 in contact with the liquid-absorbing surface 221 .

Optionally, the flow guiding structure 76 can also be arranged on the liquid absorption surface 221 of the atomizing core 20 .

In this embodiment, the lower liquid passage 32 includes a first lower liquid passage 321 and a second lower liquid passage 322, the first lower liquid passage 321 communicates with the first end of the diversion structure 76, and the second lower liquid passage 322 communicates with the diversion structure The second end of 76; wherein, the design flow velocity of the liquid along the first end of the flow guide structure 76 to its second end is greater than the design flow velocity along the second end of the flow guide structure 76 to its first end.

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

In actual use, liquid is stored in the liquid storage chamber 10, because the design flow velocity from the first end to the second end of the flow guide structure 76 is greater than the design flow velocity from the second end to the first end of the flow guide structure 76, then in the following When the liquid fills the flow guide structure 76, the liquid always enters from the side with the fastest design flow rate. The gas is discharged from its second end and enters the space in the liquid storage chamber 10 through the second lower liquid channel 322, making it difficult for the gas to accumulate in the flow guide structure 76, especially the gas accumulated in the middle region thereof, thereby solving the problem of the following: It is easy to cause the gas to gather in the middle area of the liquid absorption surface 221 to reduce the liquid absorption efficiency and easily lead to the problem of poor liquid supply, and it can solve the problem that the generation efficiency of aerosol in the atomizer 100 is reduced and the burnt taste is easy to affect the taste. Therefore, the generation efficiency of the aerosol in the atomizer 100 can be effectively maintained high and the risk of burning smell is low.

It should be noted that when the first lower liquid channel 321 , the flow guide structure 76 and the second lower liquid channel 322 are filled with liquid, the liquid in the first lower liquid channel 321 , the flow guide structure 76 and the second lower liquid channel 322 The flow rate is the same. The above-mentioned exhaust process is completed when the liquid enters the liquid and fills the first lower liquid channel 321, the flow guide structure 76 and the second lower liquid channel 322, that is, the first lower liquid channel 321, the flow guide structure 76 and the second lower liquid channel 322. The filling process of the liquid channel 322 is completed.

Optionally, the first lower liquid channel 321 and the second lower liquid channel 322 can be non-capillary channels, and the design flow rate of the first lower liquid channel 321 is the same as that of the second lower liquid channel 322; or, the first lower liquid channel The design flow rate of 321 is greater than the design flow rate of the second lower liquid channel 322 , and only the first lower liquid channel 321 is a capillary channel among the first lower liquid channel 321 and the second lower liquid channel 322 .

Referring to FIG. 10 and FIG. 11 , FIG. 11 is a top structural schematic view of the seal shown in FIG. 10 . In this embodiment, the flow guiding structure 76 is a herringbone groove structure 72 disposed on the sealing element 40 , and the liquid-absorbing surface 221 is covered on the herringbone groove structure 72 .

Referring to FIG. 12 , FIG. 12 is another structural schematic diagram of the guide structure. Optionally, the flow guide structure 76 may also include a plurality of shift blocks 760 arranged at intervals, the shift blocks 760 are arranged on both inner side walls of the groove structure on the seal 40, and the plurality of shift blocks 760 on each side are arranged at intervals, The shift block 760 includes a guide slope 761 and a blocking surface 762. The guide slope 761 and the blocking surface 762 are arranged at an acute angle. The blocking surface 762 is perpendicular to the side wall of the groove structure, wherein the liquid first flows through the guiding slope 761 and then passes through the blocking surface 762. The flow rate, the liquid flows through the blocking surface 762 first and then the guiding slope 761 is the reverse flow velocity, because the resistance of the blocking surface 762 to the liquid is greater than the resistance of the guiding slope 761 to the liquid, so it can form a bidirectional flow velocity inconsistency in the groove structure .

In this embodiment, the first end of the fishbone groove structure 72 is connected to the first lower liquid passage 321, and the second end of the fishbone groove structure 72 is connected to the second lower liquid passage 322; 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 72 to the first end in a reverse flow velocity, and the forward flow velocity is greater than the reverse flow velocity.

As shown in Figure 11, the fishbone groove structure 72 includes a main groove section 722 and several branch groove sections 723 arranged on at least one side of the main groove section 722, the first end of the main groove section 722 communicates with the first lower liquid passage 321, and the main groove section 722 The second end of the groove section 722 communicates with the second lower liquid channel 322; wherein, the main groove section 722 is a capillary groove, and the angle a between the extending direction of the branch groove section 723 and the extending direction of the main groove section 722 is an acute angle.

One end of the branch groove section 723 communicates with the trunk groove section 722, and the other end is a closed end. Some branch groove sections 723 can be arranged on one side or both sides of the trunk groove section 722, and some branch groove sections 723 arranged on both sides of the trunk groove section 722 can be distributed symmetrically or misplaced. The acute angles formed between the extending directions of the groove segments 722 may be the same or different, for example, each acute angle increases or decreases gradually.

Wherein, the extending direction of the main groove section 722 is the extending direction from the first end to the second end, and the extending direction of the branch groove section 723 is the extending direction from the end communicating with the main groove section 722 as the starting position to the closed end.

In this embodiment, both the main groove section 722 and the branch groove section 723 are grooves with uniform width, and the included angle a between the extending direction of the branch groove section 723 and the extending direction of the main groove section 722 is the center of the branch groove section 723. Angle a between the bit line and the median line of the trunk slot segment 722 .

Optionally, the branch groove segment 723 is a special-shaped groove segment, and its extending direction can also be the extending direction of the median line from the open end to the closed end.

The main groove section 722 is a capillary groove. When the liquid flows from the first end of the fishbone groove structure 72 to its second end, the angle a between the extension direction of the branch groove section 723 and the extension direction of the main groove section 722 is Acute angle, at the junction of the wall surface of the main groove section 722 and the branch groove section 723, the wetting direction of the liquid from the wall of the main groove section 722 to the wall surface of the branch groove section 723 is the same as the flow direction of the liquid in the main groove section 722, The liquid can smoothly fill the branch groove section 723 along the wall and continue to flow toward the second end of the fishbone groove structure 72 .

When the liquid flows from the second end of the fishbone groove structure 72 to its first end, at the junction of the wall surface of the main groove section 722 and the branch groove section 723, the liquid flows from the wall of the main groove section 722 to the wall surface of the branch groove section 723. The wetting direction is opposite to the flow direction of the liquid in the main groove section 722, which increases the wetting difficulty of the liquid entering the branch groove section 723 from the main groove section 722, so that there is a stagnation phenomenon in the flow of the liquid, so that the liquid flow rate slows down.

Therefore, the design flow velocity from the first end to the second end of the fishbone groove structure 72 is greater than the design flow velocity from the second end to the first end of the fishbone groove structure 72, that is, there is a difference in the liquid inlet rate at both ends of the fishbone groove structure 72 itself. , when filling liquid, the first end of the herringbone groove structure 72 enters the liquid at a fast rate, and then the gas in the fishbone groove structure 72 is squeezed out from the second end, and the gas in the fishbone groove structure 72 will be gradually filled with liquid. discharge.

Further, the branch groove section 723 includes a first wall surface 724 and a second wall surface 725 spaced apart, and the first wall surface 724 and the second wall surface 725 are connected to the trunk groove section 722, and the first wall surface 724 is closer to the trunk groove than the second wall surface 725 At the first end of the section 722, the angle b formed between the first wall surface 724 and the side wall surface of the trunk groove section 722 connected thereto is greater than 90°, and the second wall surface 725 and the side wall surface of the trunk groove section 722 connected thereto form an angle b greater than 90°. The included angle c is less than 90°.

Because the main groove section 722 is a capillary groove, the main groove section 722 has a capillary action on the liquid, and the angle b formed between the first wall surface 724 and the side wall surface of the main groove section 722 connected to it is greater than 90°, thus from the fishbone When the liquid flowing from the first end of the groove structure 72 to its second end passes through the junction of the main groove section 722 and the first wall surface 724, the liquid is a non-wetting liquid, so the liquid can smoothly expand and infiltrate to the first wall surface. The wall surface 724 fills the branch groove section 723 along the first wall surface 724 and continues to flow to the second end of the fishbone groove structure 72; the angle c formed by the second wall surface 725 and the side wall surface of the trunk groove section 722 connected to it is less than 90° , so when the liquid flowing from the second end of the fishbone groove structure 72 to its first end passes through the junction of the main groove section 722 and the second wall surface 725, the liquid is a wetting liquid, which can increase its adsorption on the wall surface. capacity, increases the difficulty of the liquid expanding and infiltrating to the second wall surface 725, thus slowing down the flow of the liquid, so that the speed of the liquid flowing through the fishbone groove structure 72 in different directions is different, and then the fishbone groove structure 72 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 723 is a capillary groove, so that the capillary force experienced by the liquid in the branch groove section 723 is increased to facilitate the flow and filling of the liquid.

Wherein, the main groove section 722 is a capillary groove, which is beneficial to transport the liquid to the liquid-absorbing surface 221 to reduce the liquid residual in the fishbone groove structure 72 . The branch groove section 723 is a capillary groove, which can further increase the speed and range of transporting the liquid to the liquid absorption surface 221, so that the liquid supply to the liquid absorption surface 221 is more sufficient, and the residual liquid in the herringbone groove structure 72 is less.

The branch groove section 723 can also be a non-capillary groove, and then the branch groove section 723 can store more liquid.

Referring to FIG. 13 , FIG. 13 is another top structural schematic view of the sealing member shown in FIG. 10 . Further, the fishbone groove structure 72 may also include a liquid-accumulating groove section 726, the main groove section 722 communicates with the liquid-accumulating groove section 726 and passes through the liquid-accumulating groove section 726, that is, the liquid-accumulating groove section 726 is located at the extension of the main groove section 722 In the middle part of the path, the width dimension A of the liquid collecting tank section 726 along its extending direction is larger than the width dimension B of the main tank section 722 . The liquid collecting groove section 726 is a non-capillary groove, and the width dimension A of the liquid collecting groove section 726 is smaller than or equal to the width dimension C of the fishbone groove structure 72 along its extending direction.

For example, the width dimension A of the liquid collecting tank section 726 is equal to the width dimension C of the fishbone groove structure 72, so that the liquid collecting groove section 726 has a relatively larger liquid storage space, and it will not affect the structure of the fishbone groove structure 72. The characteristics of the difference in forward and reverse flow rates have any effect.

The number of fishbone groove structures 72 can be one or more, and the number of fishbone groove structures 72 spans the liquid-absorbing surface 221, wherein a plurality of fishbone groove structures 72 can be arranged side by side to occupy as much space as possible corresponding to the liquid-absorbing surface. The area on the surface 221 makes the liquid absorption rate of the liquid absorption surface 221 higher and the liquid supply more uniform, and the flow guide wall 73 between the adjacent fishbone groove structures 72 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.

Further, the lower liquid channel 32 can also have the effect of preventing the liquid from flowing backward. For example, the lower liquid channel 32 is a capillary channel, and the gravity of the liquid entering the fishbone groove structure 72 when the atomizer 100 is inverted is not enough to make it flow backwards and pass through the lower liquid channel. The liquid channel 32 enters the liquid storage chamber 10; or the lower liquid channel 32 is filled with liquid absorbent cotton, etc., which can also prevent the liquid from entering the herringbone groove structure 72 through the lower liquid channel 32 from flowing backward.

Different from the situation in the prior art, the present application discloses an electronic atomization device and its atomizer. By setting the micro-groove structure on one side of the liquid-absorbing surface of the atomizing core, the micro-groove structure can lock the liquid transported by the liquid storage tank through capillary action, and supply liquid to the liquid-absorbing surface, so that the atomizer can be pumped upside down. When inhaling, the micro-groove structure can lock the liquid entering it, which can effectively reduce the liquid flowing back into the liquid storage chamber in the micro-groove structure, so that the atomizer provided by the application will not stop immediately even when it is used upside down The liquid supply to the porous substrate can maintain its normal suction state when it is inverted, which greatly improves the service life of its inverted use without dry burning, and can effectively reduce the risk of dry burning when the atomizer is used upside down , can prolong the service life of the atomizer.

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

An atomizer, characterized in that the atomizer comprises:

A liquid storage bin for storing liquid;

The atomizing core is in fluid communication with the liquid storage chamber; the atomizing core has an atomizing surface and a liquid-absorbing surface, and the atomizing core transmits the liquid on one side of the liquid-absorbing surface to the One side of the atomized surface;

A micro-groove structure, the micro-groove structure is located in the fluid communication channel between the liquid storage bin and the atomizing core, and is arranged on one side of the liquid-absorbing surface;

Wherein, at least part of the liquid in the liquid storage chamber is supplied to the liquid-absorbing surface through the micro-groove structure.
The atomizer according to claim 1, wherein the micro-groove structure is an assembly gap provided on one side of the liquid-absorbing surface.
The atomizer according to claim 1, characterized in that, the microgroove structure is a capillary groove structure with a bidirectional flow rate consistent.
The atomizer according to claim 3, wherein the capillary groove structure is a capillary through groove; or

The capillary groove includes a connected capillary part and a liquid storage part.
The atomizer according to claim 1, characterized in that, the microgroove structure is a diversion structure with inconsistent flow rates in both directions.
The atomizer according to claim 5, wherein the flow guide structure is a fishbone groove structure, and the fishbone groove structure includes a main flow guide section and a water guide provided on at least one side of the main flow guide 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.
The atomizer according to claim 6, 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°.
The atomizer according to claim 6 or 7, characterized in that, the branch guide section is a capillary blind channel.
The atomizer according to claim 6, wherein the fishbone groove structure further includes a liquid-accumulating section, and the main diversion 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.
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 a lower liquid channel, and the lower liquid channel communicates with the liquid storage bin and the micro-groove structure, and the atomization core is arranged on the atomizer seat;

Wherein, the micro-groove structure is arranged between the atomization seat and the atomization core; or

The micro-groove structure is arranged on the side of the atomizing seat facing the liquid-absorbing surface of the atomizing core, and the atomizing seat is in contact with the liquid-absorbing surface.
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 a lower liquid channel, and the lower liquid channel communicates with the liquid storage bin and the micro-groove structure, and the atomization core is arranged on the atomizer seat;

a seal, connected to the atomization seat; the seal has a surface, and the surface is disposed toward the liquid-absorbing surface;

Wherein, the micro-groove structure is arranged between the sealing member and the atomizing core; or

The surface is in contact with the liquid-absorbing surface, and the microgroove structure is arranged on the surface of the sealing member.
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 11, the power supply is connected to the atomizer and provides The nebulizer is powered.