CN216931892U - Electronic atomization device and atomizer thereof - Google Patents

Abstract

The application discloses electron atomizing device and atomizer thereof. The atomizer includes: the liquid storage bin is used for storing liquid; the first liquid discharging channel, the liquid sucking channel and the second liquid discharging channel are sequentially communicated, and the first liquid discharging channel and the second liquid discharging channel are respectively communicated with the liquid storage bin; the atomizing core is provided with a liquid suction surface, and the liquid suction surface is at least one part of the inner wall surface of the liquid suction channel; wherein, when the liquid in stock solution storehouse was full of the imbibition passageway gradually, liquid was greater than liquid from the second down the predetermined velocity of flow of liquid passageway to imbibition passageway direction from first down the velocity of flow of liquid passageway to the predetermined velocity of flow of imbibition passageway direction to liquid is full of the imbibition passageway and the bubble of exhaust is discharged to the stock solution storehouse through the second down the velocity of flow of liquid passageway. Through making the feed liquor rate at imbibition passageway both ends to differ when the topping up, the atomizer that this application provided can arrange the interior gas of imbibition passageway to the greatest extent for be difficult to form the bubble of detention in the imbibition passageway.

Description

Electronic atomization device and atomizer thereof

This application claims priority from PCT patent application No. PCT/CN2020/112672 filed on 31/08/2020, 2020 and entitled "nebulising assembly and electronic nebulising device", which is incorporated herein by reference in its entirety.

Technical Field

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

Background

In the prior art, an electronic atomization device mainly comprises an atomizer and a power supply. The atomizer generally comprises a liquid storage bin and an atomizing assembly, wherein the liquid storage bin is used for storing an atomizeable medium, and the atomizing assembly is used for heating and atomizing the atomizeable medium to form aerosol for a smoker to eat; the power supply is used to provide energy to the atomizer.

When current atomizer assembly, the atomizer shell is invertd, pour into liquid into earlier, then after assemble the seat that generates heat, sealing silica gel, atomizing core etc. it is opposite to the atomizer after the installation is accomplished again, at this moment liquid flows into imbibition passageway and atomizing core under the effect of gravity, because supply liquid passageway originally has just the air, partial air is difficult to discharge, it forms the bubble to be detained air easily in it, and the position that the bubble exists often is located the imbibition face of atomizer, can influence the replenishment of atomizing medium, lead to the aerial fog volume reduction of atomizer, produce scorched smell easily.

SUMMERY OF THE UTILITY MODEL

The application mainly provides an electronic atomization device and an atomizer thereof, which are used for solving the problem that the supply liquid channel of the electronic atomization device is retained with bubbles to influence the supplement of an atomization medium.

In order to solve the technical problem, the application adopts a technical scheme that: an atomizer is provided. The atomizer includes: the liquid storage bin is used for storing liquid; the liquid storage device comprises a first lower liquid channel, a liquid suction channel and a second lower liquid channel which are sequentially communicated, wherein the first lower liquid channel and the second lower liquid channel are respectively communicated with the liquid storage bin; the atomizing core is provided with a liquid suction surface, and the liquid suction surface is at least one part of the inner wall surface of the liquid suction channel; wherein, when the stock solution storehouse the liquid is full of gradually when the imbibition passageway, liquid is followed first liquid passageway to the predetermined velocity of flow of imbibition passageway direction is greater than liquid is followed second liquid passageway to the predetermined velocity of flow of imbibition passageway direction, thereby liquid is full of the imbibition passageway and the bubble of exhaling is passed through second liquid passageway is arranged to the stock solution storehouse.

In some embodiments, the nebulizer further comprises a flow velocity adjusting structure provided in at least one of the first lower liquid passage, the liquid suction passage, and the second lower liquid passage, the flow velocity adjusting structure making a preset flow velocity of the first lower liquid passage to the liquid suction passage direction larger than a preset flow velocity of the second lower liquid passage to the liquid suction passage direction.

In some embodiments, the flow rate adjustment structure is a flow rate acceleration structure provided at the first aspiration channel and/or the aspiration channel.

In some embodiments, the flow rate accelerating structure is a capillary groove structure extending in a direction from the first lower fluidic passage to the wicking passage.

In some embodiments, the flow velocity adjustment structure is a flow velocity reduction structure disposed in the second downcomer.

In some embodiments, the flow rate adjustment structure is a flow guide structure with a bi-directional flow rate disparity, the flow guide structure being disposed in at least one of the aspiration channel, the first lower fluid channel, and the second lower fluid channel.

In some embodiments, the flow guiding structure is a fishbone groove structure, the fishbone groove structure includes a main flow guiding section and a plurality of branch flow guiding sections disposed on at least one side of the main flow guiding section, the main flow guiding section is a capillary channel, and an included angle between an extending direction of the branch flow guiding section and an extending direction of the first end to the second end of the main flow guiding section is an acute angle.

In some embodiments, the branch flow guide section includes a first wall surface and a second wall surface which are spaced apart from each other, the first wall surface and the second wall surface are connected to a side wall surface of the main flow guide section, the first wall surface is close to the first end of the main flow guide section relative to the second wall surface, an included angle formed between the first wall surface and the side wall surface of the main flow guide section connected to the first wall surface is greater than 90 °, and an included angle formed between the second wall surface and the side wall surface of the main flow guide section connected to the second wall surface is less than 90 °.

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

In some embodiments, the fishbone groove structure further comprises a liquid collecting section, the trunk diversion section is communicated with the liquid collecting section and penetrates through the liquid collecting section, and the width dimension of the liquid collecting section in the extending direction of the liquid collecting section is larger than that of the trunk diversion section.

In some embodiments, the first downcomer channel is a capillary channel and the first downcomer channel has a cross-section along its direction of extension with a characteristic dimension that is less than a characteristic dimension of a cross-section of the second downcomer channel along its direction of extension.

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

In some embodiments, the nebulizer further comprises:

the atomizing base is embedded in the liquid storage bin and provided with the first lower liquid channel and the second lower liquid channel, and the atomizing core is arranged on the atomizing base;

wherein, the atomizing seat and the atomizing core are matched to form the liquid suction channel.

In some embodiments, the nebulizer further comprises:

the atomizing base is embedded in the liquid storage bin and provided with the first liquid discharging channel and the second liquid discharging channel, and the atomizing core is arranged on the atomizing base;

the sealing element is connected with the atomizing seat and covers the liquid suction surface;

wherein the sealing member cooperates with the atomizing core to form the liquid suction passage.

In some embodiments, a liquid guide groove is arranged on one side of the sealing member facing the liquid suction surface, the liquid guide groove crosses the liquid suction surface, and the liquid suction surface is covered on the liquid guide groove to form the liquid suction channel.

In some embodiments, the liquid guide groove is a straight groove; or

The bottom wall of the liquid guide groove is provided with at least one flow guide wall, and the flow guide wall divides the liquid guide 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 communicating opening.

In order to solve the above technical problem, another technical solution adopted by the present application is: an electronic atomizer is provided. The electronic atomization device comprises a power supply and the atomizer, wherein the power supply is connected with the atomizer and supplies power to the atomizer.

The beneficial effect of this application is: being different from the situation of the prior art, the application discloses an electronic atomization device and an atomizer thereof. Through setting up the predetermined velocity of flow of liquid from first liquid channel to imbibition passageway direction and being greater than the predetermined velocity of flow of liquid from second liquid channel to imbibition passageway direction, when the topping up, the liquid in the stock solution storehouse is predetermined the one end that the velocity of flow is faster always and gets into the imbibition passageway, gas in the imbibition passageway is extruded by one end liquid flow and is discharged from the other end of imbibition passageway gradually, first liquid channel is liquid down when the topping up promptly, the drain passage exhaust under the second, make gas be difficult to gather in the imbibition passageway, avoid the imbibition passageway in there being the bubble and lead to influencing the confession liquid of imbibition level, can solve the problem that the generating efficiency of aerosol reduces and easily produces the scorched flavor influence taste in the atomizer, thereby can effectively maintain the higher risk that produces the scorched flavor of aerosol in the atomizer.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:

FIG. 1 is a schematic structural diagram of an embodiment of an electronic atomizer provided herein;

FIG. 2 is a schematic view showing the structure of an atomizer in the electronic atomizer shown in FIG. 1;

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

FIG. 4 is a schematic diagram of an exploded view of the atomizer shown in FIG. 2;

FIG. 5 is an enlarged schematic view of region A of the atomizer shown in FIG. 3;

FIG. 6 is a schematic cross-sectional view of the atomizing base of the atomizer shown in FIG. 4;

FIG. 7 is a schematic view of an alternate perspective of the atomizing base of the atomizer shown in FIG. 4;

FIG. 8 is a graph showing a force analysis of the fluid in the first and second drainage channels during fluid filling;

FIG. 9 is a schematic diagram of the distribution of liquid and gas in the atomizer at 0.4s at the beginning of filling for different lower nozzle size models;

FIG. 10 is a schematic view of the atomizer of FIG. 2 with a flow rate adjustment structure disposed in the first downcomer channel;

FIG. 11 is a schematic view of an alternative construction of the atomizing mount of the atomizer shown in FIG. 2;

FIG. 12 is a schematic view of the atomizer of FIG. 2 with a flow rate adjustment structure disposed in the second downcomer channel;

FIG. 13 is a schematic view of the flow rate adjustment structure disposed in the suction passage of the atomizer shown in FIG. 2;

FIG. 14 is a schematic axial side view of the seal of the atomizer of FIG. 4;

FIG. 15 is a schematic view of a flow directing structure;

FIG. 16 is a schematic top view of the seal of FIG. 14;

FIG. 17 is a schematic top view of another seal in the atomizer of FIG. 4;

FIG. 18 is a schematic axial side view of a seal in the atomizer of FIG. 4

FIG. 19 is a schematic axial view of a further alternative seal arrangement for the atomizer of FIG. 4;

FIG. 20 is a schematic representation of a plot of the seal of FIGS. 18 and 19 after a raffinate challenge test;

fig. 21 is another schematic top view of the seal of the atomizer of fig. 4.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terms "first", "second" and "third" in the embodiments of the present application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of the feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the 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 explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

Referring to fig. 1 to 3, fig. 1 is a schematic structural diagram of an embodiment of an electronic atomization apparatus provided in the present application, fig. 2 is a schematic structural diagram of an atomizer in the electronic atomization apparatus shown in fig. 1, and fig. 3 is a schematic cross-sectional structural diagram of the atomizer shown in fig. 2.

The electronic atomizer 300 may be used for atomizing an aerosolizable substrate, such as a pharmaceutical liquid or a nutritional liquid, i.e., atomizing the liquid aerosolizable substrate into an aerosol for absorption by a user. The electronic atomizer 300 includes a power supply 200 and an atomizer 100, wherein the power supply 200 is connected to the atomizer 100 and supplies power to the atomizer 100. Wherein the nebulizer 100 is used to store and nebulize an aerosolizable substrate to form an aerosol for absorption by a user.

It is understood that in some embodiments, the atomizer 100 and the power supply 200 are detachably connected, and may be plugged or screwed, etc., that is, the atomizer 100 and the power supply 200 may be two relatively independent components, the atomizer 100 is disposable and replaceable, and the power supply 200 is non-disposable, i.e., the power supply 200 may be used for multiple times after being charged; the atomizer 100 may also be non-disposable and may be used multiple times after being refilled with liquid.

In other embodiments, the atomizer 100 and the power supply 200 may be packaged together in the same housing to form an integrated electronic atomizer 300, i.e., the atomizer 100 and the power supply 200 are non-detachably connected; such electronic aerosolization devices 300 are typically disposable and the aerosolizable matrix is disposable upon depletion.

As shown in fig. 2 and 3, the atomizer 100 is provided with a first lower liquid passage 1, a liquid suction passage 2, and a second lower liquid passage 3 which are communicated in this order, and a liquid suction surface 32 of the atomizer 100 is at least a part of an inner wall surface of the liquid suction passage 2; wherein, the preset flow rate of the liquid from the first lower liquid channel 1 to the liquid suction channel 2 is larger 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 is provided with a liquid storage bin 12 for storing the nebulizable matrix and an atomizing core 30 for atomizing the nebulizable matrix, the first lower liquid channel 1 and the second lower liquid channel 3 are both communicated with the liquid storage bin 12 and the liquid suction channel 2, the nebulizable matrix in the liquid storage bin 12 can enter the liquid suction channel 2 through the first lower liquid channel 1 and the second lower liquid channel 3, the atomizing core 30 is provided with a liquid suction surface 32, and the liquid suction surface 32 is at least one part of the inner wall surface of the liquid suction channel 2, namely, the nebulizable matrix can be absorbed from the liquid suction channel 2.

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

The preset flow velocity of the liquid in the direction from the first lower liquid channel 1 to the liquid suction channel 2 is greater than the preset flow velocity of the liquid in the direction from the second lower liquid channel 3 to the liquid suction channel 2, the preset flow velocity of the liquid in the direction from the first lower liquid channel 1 to the second lower liquid channel 3 is greater than the preset flow velocity of the liquid in the direction from the second lower liquid channel 3 to the first lower liquid channel 1 through the liquid suction channel 2, the preset flow velocity of the liquid in the direction from the first lower liquid channel 1 to the second lower liquid channel 3 is greater than the preset flow velocity of the liquid in the direction from the second lower liquid channel 3 to the first lower liquid channel 1, and the preset flow velocity of the liquid in the direction from the first lower liquid channel 1 to the liquid suction channel 2 is greater than the preset flow velocity of the liquid in the direction from the second lower liquid channel 3 to the liquid suction channel 2.

When the liquid of stock solution storehouse 12 was full of imbibition passageway 2 gradually, the predetermined velocity of flow of liquid from first lower liquid passageway 1 to imbibition passageway 2 direction was greater than the predetermined velocity of flow of liquid from second lower liquid passageway 3 to imbibition passageway 2 direction to the liquid is full of imbibition passageway 2 and the bubble of exhaust is discharged to stock solution storehouse 12 through second lower liquid passageway 3.

In practical application, when the nebulizable matrix is stored in the reservoir 12 and does not enter the first lower liquid channel 1 and the second lower liquid channel 3, since the preset flow rate of the liquid in the direction from the first lower liquid passage 1 to the liquid suction passage 2 is greater than the preset flow rate of the liquid in the direction from the second lower liquid passage 3 to the liquid suction passage 2, the nebulizable matrix always enters from the end where the preset flow rate is fast, in other words, the nebulizable matrix enters the pipetting channel 2 from the end where the preset flow rate is fast, and the gas in the liquid suction passage 2 is discharged from the other end, so that the gas is difficult to gather in the liquid suction passage 2, in particular, the gas gathered in the middle area of the liquid absorbing channel 2 can avoid the influence on the liquid supply of the liquid absorbing surface 32 caused by the existence of bubbles in the liquid absorbing channel 2, can solve the problems that the generation efficiency of aerosol in the atomizer 100 is reduced and the taste is affected by scorched flavor, thereby effectively maintaining a high aerosol generation efficiency in the atomizer 100 and a low risk of scorched smell.

It should be noted that when the first lower liquid passage 1, the liquid-suction passage 2, and the second lower liquid passage 3 are filled with the nebulizable base material, the flow rates of the nebulizable base material in the first lower liquid passage 1, the liquid-suction passage 2, and the second lower liquid passage 3 are the same. The above-mentioned process of discharging the gas in the liquid suction channel 2 is completed when the nebulizable base material is discharged and the first liquid discharge channel 1, the liquid suction channel 2 and the second liquid discharge channel 3 are completely filled, that is, during the process of filling the first liquid discharge channel 1, the liquid suction channel 2 and the second liquid discharge channel 3.

The first liquid descending channel 1, the liquid absorbing channel 2 and the second liquid descending channel 3 may be all one or multiple ones, or the number of the first liquid descending channel 1, the number of the liquid absorbing channel 2 and the number of the second liquid descending channel 3 may be different, which is not specifically limited in the present application.

The cross section of the first lower liquid passage 1, the liquid suction passage 2 and the second lower liquid passage 3 in the extending direction may be regular shapes such as circles or rectangles, or polygonal shapes such as irregular triangles or quadrangles, and the cross section in the extending direction may be the same or may be varied, which is not limited in the present application.

Referring to fig. 2 to 5, fig. 4 is a schematic diagram of an exploded structure of the atomizer shown in fig. 2, and fig. 5 is an enlarged schematic diagram of a region a of the atomizer shown in fig. 3.

This atomizer 100 includes atomizing casing 10, atomizing seat 20, atomizing core 30, sealing member 40, base 50 and end cover 60, atomizing seat 20 inlays and locates in atomizing casing 10, atomizing core 30 and sealing member 40 all are connected with atomizing seat 20 cooperation, base 50 capping in atomizing casing 10 the opening end and with atomizing seat 20 cooperate, with fixed atomizing core 30 and sealing member 40, end cover 60 further seals cap base 50 and covers the opening end of locating atomizing casing 10, end cover 60 and atomizing casing 10 looks joint, with unable adjustment base 50.

In other embodiments, the end cap 60 may not be provided, and the base 50 may be fixed to the atomizing housing 10 by a fastener such as a screw or a pin; alternatively, the base 50 is directly engaged with the atomizing housing 10.

Referring to fig. 5, the atomizing core 30 has a liquid suction surface 32 and an atomizing surface 34, and the atomizing core 30 sucks the nebulizable substrate through the liquid suction surface 32 and atomizes the nebulizable substrate on one side of the atomizing surface 34 into an aerosol for absorption by a user. The liquid suction surface 32 and the atomization surface 34 may be two surfaces that are spaced apart, for example, the liquid suction surface 32 and the atomization surface 34 are two sides that face away from each other, the liquid suction surface 32 and the atomization surface 34 are two sides that are adjacent to each other, or the liquid suction surface 32 and the atomization surface 34 may also be two different portions on the same side, which is not particularly limited in this application.

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

The atomizing base 20 is embedded in the liquid storage bin 12 from the open end of the liquid storage bin 12, one end of the air outlet pipe 14 is inserted into the aerosol outlet 21 of the atomizing base 20, and the atomizing base 20 and the liquid storage bin 12 and the air outlet pipe 14 and the aerosol outlet 21 are hermetically arranged to prevent liquid leakage.

In this embodiment, the atomizing base 20 is provided with a first lower liquid channel 1 and a second lower liquid channel 3, and the first lower liquid channel 1 and the second lower liquid channel 3 are both communicated with the liquid storage bin 12 for discharging liquid.

In other embodiments, grooves are formed on the outer sidewall of the atomizing base 20 or the inner sidewall of the reservoir 12, and the outer sidewall of the atomizing base 20 and the inner sidewall of the reservoir 12 cooperate to form the first lower liquid channel 1 and the second lower liquid channel 3. Or, the inner side wall of the liquid storage bin 12 is provided with a first lower liquid channel 1 and a second lower liquid channel 3. Alternatively, one of the atomizing base 20 and the liquid storage chamber 12 is provided with a first lower liquid channel 1, and the other is provided with a second lower liquid channel 3, which is not specifically limited in the present application.

As shown in fig. 6, fig. 6 is a schematic sectional structure view of the atomizing base in the atomizer shown in fig. 4. The atomizing base 20 is further provided with an accommodating cavity 22, the atomizing core 30 is embedded in the accommodating cavity 22, and the atomizing core 30 is hermetically connected with the atomizing base 20 to prevent liquid leakage.

In this embodiment, with reference to fig. 5 and 6, the atomizing base 20 is further provided with an atomizing cavity 24, the atomizing cavity 24 is directly connected to the air outlet pipe 14, and the atomizing cavity 24 is located on one side of the atomizing surface 34, that is, the atomizing surface 34 faces the air outlet pipe 14. Therefore, the aerosol generated in the atomizing cavity 24 can be directly guided to the oral cavity of the user through the air outlet pipe 14, the distance from the aerosol to the oral cavity of the user is relatively shortened, the heat dissipation time of the aerosol is reduced, the temperature of the aerosol reaching the oral cavity of the user is higher, the aerosol can directly reach the oral cavity without passing through a condensation groove on the atomizing base 20, and therefore the aerosol carries less moisture relatively and presents better taste to the user.

The liquid absorption surface 32 is a side surface of the atomization core 30 deviating from the atomization surface 34, the sealing element 40 is embedded in the accommodating cavity 22 of the atomization seat 20 to be connected with the atomization seat 20 and is matched with the atomization core 30 to form the liquid absorption channel 2, the base 50 is abutted against one side of the sealing element 40 deviating from the atomization core 30, so that the sealing element 40 is matched with the atomization seat 20 to fix the atomization core 30, and the liquid absorption surface 32 is a part of the inner wall surface of the liquid absorption channel 2.

Specifically, referring to fig. 6 and 7, fig. 7 is a schematic view of an alternative perspective of the atomizing base of the atomizer shown in fig. 4. The accommodating chamber 22 includes a first chamber 220 and a second chamber 222 which are communicated with each other, the first chamber 220 is disposed between the second chamber 222 and the atomizing chamber 24 and is communicated with each other, wherein the chamber space of the first chamber 220 is smaller than the chamber space of the second chamber 222, the atomizing core 30 is embedded in the first chamber 220 and is sealed with the first chamber 220, and the sealing member 40 is embedded in the second chamber 222. The inner side wall of the accommodating cavity 22 is further provided with a plurality of bosses 23, one side of the plurality of bosses 23 is a space of the second cavity 222, a space surrounded by the plurality of bosses 23 is a space of the first cavity 220, the sealing element 40 further abuts against the plurality of bosses 23, the base 50 is further partially embedded into one side of the sealing element 40, so that the sealing element 40 seals the second cavity 222, liquid is prevented from leaking outwards from the second cavity 222, and one end of the base 50, which is away from the atomizing core, is further covered on an open end of the liquid storage bin 12. The first lower liquid passage 1 and the second lower liquid passage 3 extend from both sides of the atomizing core 30 to the second cavity 222 so as to communicate with the liquid suction passage 2.

Alternatively, the atomizing core 30 is provided with the liquid suction passage 2, in other words, the liquid suction passage 2 is a through passage of the atomizing core 30, and the inner wall surface of the liquid suction passage 2 can be regarded as the liquid suction surface 32. The sealing member 40 may also be embedded in the accommodating cavity 22 to block 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 outlet pipe 14, the liquid-absorbing surface 32 faces the outlet pipe 14, and the atomizing base 20 and the atomizing core 30 cooperate to form the liquid-absorbing passage 2, for example, a groove structure is formed on the atomizing base 20 on the side facing the liquid-absorbing surface 32, the liquid-absorbing surface 32 covers the groove structure to form the liquid-absorbing passage 2, so that the liquid-absorbing surface 32 is a part of the inner wall surface of the liquid-absorbing passage 2, and the sealing member 40 can be disposed between the atomizing base 20 and the atomizing core 30 to prevent liquid leakage.

In some embodiments, referring to fig. 4-6, the first lower fluid channel 1 is a capillary channel and the characteristic dimension of the cross-section of the first lower fluid channel 1 along its direction of extension is smaller than the characteristic dimension of the cross-section of the second lower fluid channel 3 along its direction of extension. Wherein the characteristic dimension is the smallest dimension of the downcomer channel, e.g., the transverse cross-section of the downcomer channel is circular, which is its radial dimension; if the cross section of the lower liquid channel is rectangular, the characteristic dimension is the width dimension thereof; if the cross-section of the downcomer channel is elliptical, the characteristic dimension is the minor axis dimension thereof. Wherein the lower fluid passages here comprise a first lower fluid passage 1 and a second lower fluid passage 3.

The first downcomer channel 1 is a capillary channel and the second downcomer channel 3 may be a capillary channel or a non-capillary channel.

The characteristic dimension of the cross section of the first lower liquid channel 1 along the extension direction thereof is smaller than the characteristic dimension of the cross section of the second lower liquid channel 3 along the extension direction thereof, specifically understood as the size relationship between the characteristic dimensions of the first lower liquid channel 1 and the second lower liquid channel 3 at the same position along the extension direction. Thus, it is ensured that the first lower liquid channel 1 is narrower than the second lower liquid channel 3, and that the first lower liquid channel 1 has a stronger capillary force on the liquid and thus a faster rate of liquid discharge from the first lower liquid channel 1.

The first lower liquid channel 1 and the second lower liquid channel 3 may be of uniform channel structure, i.e. the dimensions are uniform throughout the extension direction, for example, the dimension characteristics of the first lower liquid channel 1 are 0.5mm throughout, and the dimension characteristics of the second lower liquid channel 3 are 3.2mm throughout.

The first lower liquid channel 1 and the second lower liquid channel 3 may also be channel structures with dimensions varying in the direction of extension.

Specifically, referring to fig. 8, fig. 8 is a graph of the force analysis of the fluid in the first lower fluid passage 1 and the second lower fluid passage 3 during fluid filling. When liquid is filled, the liquid is subjected to the combined action of gravity, capillary force and flow resistance, the unit volume of the liquid at the lower liquid outlets of the first lower liquid channel 1 and the second lower liquid channel 3 is respectively taken for analysis, and the gravity of the liquid at the two positions is equal to G1 which is G2, wherein G1 is the gravity of the unit volume of the liquid at the first lower liquid channel 1, and G2 is the gravity of the unit volume of the liquid at the second lower liquid channel 3; the liquid at the lower liquid outlet on the side with smaller size receives larger capillary force, namely FT1> FT2, wherein FT1 is the capillary force received by unit volume of liquid at the lower liquid outlet of the first lower liquid channel 1, and FT2 is the capillary force received by unit volume of liquid at the lower liquid outlet of the second lower liquid channel 3; the flow resistance is positively correlated with the flow rate of the liquid (the flow resistance is 0 when the liquid flow speed is 0 at the initial moment), that is, f1 is 0-f 2 is 0, wherein f1 is the flow resistance of the unit volume of the liquid at the lower liquid outlet of the first lower liquid channel 1, and f2 is the flow resistance of the unit volume of the liquid at the lower liquid outlet of the second lower liquid channel 3; therefore, the driving force for the liquid at the lower liquid outlet of the first lower liquid channel 1 to flow downwards is larger during liquid filling, the liquid is preferentially drained from the first lower liquid channel 1, and the gas in the liquid suction channel 2 is squeezed to be discharged from the second lower liquid channel 3.

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

Referring to fig. 9, fig. 9 is a graph of the distribution of liquid and gas in the nebulizer at 0.4s at the start of fill for different lower orifice size models. FIG. 9(a) shows a model in which liquid is drained from a drain channel having a characteristic dimension of 0.4mm and gas is vented from a drain channel having a characteristic dimension of 2.9 mm; in the model of FIG. 9(b), liquid is first drained from a drain channel with a characteristic dimension of 0.8mm, and gas is vented from a drain channel with a characteristic dimension of 2.9 mm; in the model of FIG. 9(c), liquid is first drained from a drain channel with a characteristic dimension of 2.9mm and is vented from a drain channel with a characteristic dimension of 5.0 mm; in the model of FIG. 9(d), the liquid is first drained from the drain channel with a characteristic dimension of 2.9mm and is then vented from the drain channel with a characteristic dimension of 7.0 mm.

In the above model, the liquid is always discharged from the side of the liquid discharge port having a small characteristic dimension, and the lower the size of the liquid discharge port, the lower the liquid discharge speed of the liquid.

Further investigation has found that when the characteristic dimension of the first lower liquid channel 1 and the characteristic dimension of the second lower liquid channel 3 are both in the range of 0.4mm to 7.0mm, liquid is always discharged from the lower liquid outlet side with smaller characteristic dimension, i.e. when liquid is filled, liquid is always discharged from the first lower liquid channel 1, and gas is discharged from the second lower liquid channel 3.

Specifically, in the research, it is found 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 less than 0.4mm, the liquid is subjected to too much resistance in the first lower liquid channel 1, and the preset flow rate of the first lower liquid channel 1 cannot be ensured to be greater than the preset flow rate of the second lower liquid channel 3; when the characteristic dimension exceeds 7.0mm, the influence of the capillary force of the first lower fluid passage 1 and the capillary force of the second lower fluid passage 3 on the preset flow rate is approximately equivalent, and the first lower fluid passage 1 cannot be ensured to discharge fluid preferentially. In the range of 0.4mm to 7.0mm, the liquid in the liquid storage bin 12 is always discharged from the first lower liquid channel 1 with smaller characteristic size and is exhausted from the second lower liquid channel 3 during liquid filling.

The first lower fluid passage 1 may have a characteristic dimension of 0.4mm, 0.6mm, 0.8mm, 1.0mm, 1.2mm, 1.4mm, 1.6mm, 1.8mm, 2.0mm, etc., and the second lower fluid passage 3 may have a characteristic dimension of 1.6mm, 2.0mm, 2.4mm, 2.9mm, 3.2mm, 3.6mm, 4.2mm, 4.8mm, 5.4mm, 5.8mm, 6.2mm, etc.

In another embodiment, the preset flow rate can be changed by arranging structural features on the first lower liquid channel 1, the liquid suction channel 2 and the second lower liquid channel 3, 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 the preset flow rate in the direction from the second lower liquid channel 3 to the liquid suction channel 3.

Specifically, referring to fig. 10, 12 and 13, the nebulizer 100 further includes a flow rate adjusting structure 80, the flow rate adjusting structure 80 is disposed in at least one of the first lower liquid passage 1, the liquid suction passage 2 and the second lower liquid passage 3, and the flow rate adjusting structure 80 makes a preset flow rate in a direction from the first lower liquid passage 1 to the liquid suction passage 2 greater than a preset flow rate in a direction from the second lower liquid passage 3 to the liquid suction passage 2.

As shown in fig. 10, the flow velocity adjusting structure 80 may be a flow velocity accelerating structure 82, and the flow velocity accelerating structure 82 is disposed on the first lower liquid channel 1 and/or the liquid absorbing channel 2 to relatively increase the preset flow velocity of the first lower liquid channel 1 and/or the liquid absorbing channel 2, so that the preset flow velocity in the direction from the first lower liquid channel 1 to the liquid absorbing channel 2 is greater than the preset flow velocity in the direction from the second lower liquid channel 3 to the liquid absorbing channel 2.

Alternatively, the flow rate accelerating structure 82 is a capillary groove structure extending in the direction from the first lower liquid passage 1 to the liquid absorbing passage 2. Specifically, the flow rate accelerating structure 82 may be a capillary groove structure provided on the side wall forming the first lower liquid passage 1, or the flow rate accelerating structure 82 is a capillary groove structure provided on the side wall forming the first lower liquid passage 1 and the liquid-absorbing passage.

Alternatively, the flow rate accelerating structure 82 may be a micro-pump or the like.

In this embodiment, the flow rate accelerating structure 82 is disposed on the first lower fluid passage 1, and the preset flow rate of the first lower fluid passage 1 is greater than the preset flow rate of the second lower fluid passage 3.

Referring to fig. 11, fig. 11 is a schematic view of another structure of the atomizing base of the atomizer shown in fig. 2.

In this embodiment, the flow rate accelerating structures 82 are capillary grooves 25.

Only the wall surface of the first lower liquid channel 1 in the first lower liquid channel 1 and the second lower liquid channel 3 is provided with a plurality of capillary grooves 25, so that the surface tension of the liquid flowing through the first lower liquid channel 1 is destroyed by the structure of the capillary grooves 25, and simultaneously, the liquid in the liquid storage bin 12 is subjected to liquid absorption and flow guide by the capillary force of the capillary grooves 25, so that the liquid is accelerated to flow towards the liquid absorption channel 2; the second lower liquid channel 3 has no capillary groove 25 formed therein, and in one embodiment, the wall surface of the second lower liquid channel 3 is a smooth wall surface to facilitate the rising 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 only the wall surface of the first lower liquid channel 1 in the first lower liquid channel 1 and the second lower liquid channel 3 is provided with a plurality of capillary grooves 25, the capillary grooves 25 may be formed by arranging 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 lower liquid channel 1.

The liquid lower hydrodynamic force in the first lower liquid channel 1 mainly comes from the gravity of the liquid and the capillary force of the capillary groove 25; the liquid in the second lower liquid channel 3 is mainly from the gravity of the liquid itself, and the lower hydrodynamic force of the liquid in the second lower liquid channel 3 is smaller than that of the first lower liquid channel 1, so that the preset flow rate of the liquid flowing through the first lower liquid channel 1 is greater than that of the liquid flowing through the second lower liquid channel 3. Therefore, when the first lower liquid channel 1, the imbibition channel 2 and the second lower liquid channel 3 feed liquid, the liquid in the liquid storage bin 12 is preferentially fed from the first lower liquid channel 1 with a high preset flow rate, and the first lower liquid channel 1 is extruded, the gas in the imbibition channel 2 and the second lower liquid channel 3 enters the liquid storage bin 12 from one end of the second lower liquid channel 3 communicated with the liquid storage bin 12, the first lower liquid channel 1, the imbibition channel 2 and the second lower liquid channel 3 are sequentially filled with the liquid, the liquid is filled from one end of the imbibition channel 2, the pressure of the liquid receiving side of the gas in the imbibition channel 2 is large, so that the gas in the imbibition channel 2 can be discharged from the other end, and in the process of liquid filling, bubbles are difficult to exist in the imbibition channel 2.

For further explanation, it is assumed 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 lower liquid channel 1 and the second lower liquid channel 3 feed liquid at the same time, so that part of the gas in the liquid suction channel 2 is difficult to discharge and exists in the liquid suction channel 2 due to simultaneous liquid feeding at two ends of the liquid suction channel 2, and thus the liquid feeding area of the atomizing core 30 is reduced in the liquid feeding process, the liquid feeding rate is reduced, and the liquid feeding to the atomizing core 30 is easy to be insufficient.

Therefore this application is greater than the predetermined velocity of flow from second lower liquid channel 3 to 2 directions of imbibition passageway through setting up from the predetermined velocity of flow of first lower liquid channel 1 to 2 directions of imbibition passageway, make the feed liquor rate at 2 both ends of imbibition passageway have the difference, thereby at the in-process of topping up, the one end feed liquor other end exhaust of imbibition passageway 2, so that the gas in the imbibition passageway 2 is difficult to attach to and stops in imbibition passageway 2, avoid the imbibition passageway 2 in there being the bubble and lead to the confession liquid of imbibition face 32 not enough.

Referring to fig. 12, the flow rate adjusting structure 80 can also be a flow rate reducing structure 84, and the flow rate reducing structure 84 is disposed on the second liquid descending channel 3 to relatively reduce the preset flow rate of the second liquid descending channel 3, so that the preset flow rate in the direction from the first liquid descending channel 1 to the liquid absorbing channel 2 is greater than the preset flow rate in the direction from the second liquid descending channel 3 to the liquid absorbing channel 2.

The flow rate slowing structure 84 may be a retarding net structure disposed in the second lower liquid passage 3, the retarding net structure may include one, two or three layers along the extending direction of the second lower liquid passage 3, and the retarding net structure is provided with fine meshes to reduce the speed of the liquid when the liquid is filled through the fine meshes, and also to exhaust the gas.

The flow speed slowing structure 84 may also be a baffling structure disposed at the liquid inlet of the second lower liquid channel 3, so that the liquid inlet direction of the liquid inlet is different from the extending direction of the second lower liquid channel 3, thereby slowing down the liquid filling rate, and making the preset flow speed of the first lower liquid channel 1 to the liquid suction channel 2 direction greater than the preset flow speed of the second lower liquid channel 3 to the liquid suction channel 2 direction.

Specifically, the flow rate slowing structure 84 is disposed on the atomizing base 20.

Referring to fig. 13, the flow rate adjusting structure 80 may be a flow guide structure 86 with a bi-directional flow rate inconsistency, and the flow guide structure 86 is disposed at least one of the liquid suction passage 2, the first lower liquid passage 1 and the second lower liquid passage 3. In other words, the flow directing structure 86 has a different forward flow rate than the reverse flow rate, and the flow directing structure 86 has a forward flow rate greater than the reverse flow rate.

The flow guide structure 86 can be arranged on the first lower liquid channel 1 and/or the liquid suction channel 2 in the forward direction, so that liquid flows along the direction from the first lower liquid channel 1 to the liquid suction channel 2 during liquid filling, that is, the liquid flows along the forward direction of the flow guide structure 86; the flow guide structure 86 can be arranged on the second lower liquid channel 3 in a reverse direction, and when liquid flows along the direction 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; or, two kinds of above-mentioned setting mode of water conservancy diversion structure 86 combine together to all can make the predetermined velocity of flow of first lower liquid passageway 1 to imbibition passageway 2 direction be greater than the predetermined velocity of flow of second lower liquid passageway 3 to imbibition passageway 2 direction.

Specifically, the flow guide structure 86 may be provided on at least one of the atomizing base 20, the atomizing core 30 and the sealing member 40, and at least one of the atomizing base 20, the atomizing core 30 and the sealing member 40 provided with the flow guide structure 86 further cooperates with the liquid suction surface 32 of the atomizing core 30 to form the liquid suction passage 2.

Referring to fig. 14, fig. 14 is a schematic axial side view of a seal of the atomizer of fig. 4.

In this embodiment, the flow guiding structure 86 is a fishbone groove structure 44 disposed on the sealing member 40, the sealing member 40 cooperates with the liquid absorbing surface 32 of the atomizing core 30 to form the liquid absorbing passage 2, that is, the liquid absorbing surface 32 covers the fishbone groove structure 44 to form the liquid absorbing passage 2.

Optionally, referring to fig. 15, the flow guiding structure 86 may further include a plurality of speed changing blocks 860 disposed at intervals, the speed changing blocks 860 are disposed on two side walls of the liquid suction channel 2, and the plurality of speed changing blocks 860 on each side are disposed at intervals, the speed changing blocks 860 include a guiding slope 861 and a blocking plane 862, the guiding slope 861 and the blocking plane 862 are disposed at an acute angle, the blocking plane 862 is perpendicular to the side wall of the liquid suction channel 2, wherein the liquid firstly flows through the guiding slope 861 and then passes through the blocking plane 862 as a forward flow rate, and the liquid firstly flows through the blocking plane 862 and then passes through the guiding slope 861 as a reverse flow rate, because the resistance of the blocking plane 862 to the liquid is greater than the resistance of the guiding slope 861 to the liquid, it may form a phenomenon that the bidirectional flow rate is not uniform in the liquid suction channel 2.

The fishbone groove structure 44 and the shift block 860 may also be disposed on the atomizing base 20 or the atomizing core 30.

In this embodiment, a first end of the fishbone groove structure 44 is communicated with the first lower fluid passage 1, and a second end of the fishbone groove structure 44 is communicated with the second lower fluid passage 3; wherein, liquid is the forward velocity of flow to its second end along the first end of fishbone groove structure 44, and liquid is the reverse velocity of flow to its first end along the second end of fishbone groove structure 44, and the forward velocity of flow is greater than the reverse velocity of flow.

As shown in fig. 16, fig. 16 is a schematic top view of the seal of fig. 14. The fishbone groove structure 44 comprises a main groove section 440 and a plurality of branch groove sections 442 arranged on at least one side of the main groove section 440, wherein a first end of the main groove section 440 is communicated with the first lower liquid channel 1, and a second end of the main groove section 440 is communicated with the second lower liquid channel 3; wherein, the main groove section 440 is a capillary groove, and an included 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 slot section 442 is communicated with the main slot section 440, and the other end is a closed end. The plurality of branch slot segments 442 may be disposed at one side or both sides of the main slot segment 440, the plurality of branch slot segments 442 disposed at both sides of the main slot segment 440 may be symmetrically distributed or staggered, and the acute angles formed between the extending directions of the branch slot segments 442 and the extending direction of the main slot segment 440 may be the same or different, for example, the acute angles are gradually increased or gradually decreased.

The extending direction of the main slot section 440 is the extending direction from the first end to the second end, and the extending direction of the branch slot section 442 takes the end thereof communicated with the main slot section 440 as the extending direction from the starting position to the closed end thereof.

In this embodiment, the main slot segment 440 and the branch slot segment 442 are slots with uniform width, and an included angle a between the extending direction of the branch slot segment 442 and the extending direction of the main slot segment 440 is an included angle a between a median line of the branch slot segment 442 and a median line of the main slot segment 440.

Optionally, the branch slot segment 442 is a shaped slot segment, and the extending direction thereof may also be the extending direction from the open end to the median line at 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 the second end thereof, since the extending direction of the branch groove section 442 and the extending direction of the main groove section 440 form an acute angle, at the boundary of the main groove section 440 and the wall surface of the branch groove section 442, the wetting direction of the liquid from the wall surface of the main groove section 440 to the wall surface of the branch groove section 442 is the same direction as the flowing direction of the liquid in the main groove section 440, and the liquid can smoothly fill the branch groove section 442 along the wall surface and continuously flow to the second end of the fishbone groove structure 44.

When the liquid flows from the second end of the fishbone groove structure 44 to the first end thereof, at the junction of the main groove section 440 and the wall surface of the branch groove section 442, the wetting direction of the liquid from the wall surface of the main groove section 440 to the wall surface of the branch groove section 442 is opposite to the flowing 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 a slow phenomenon exists in the flow of the liquid, and the flowing speed of the liquid becomes slow.

Therefore the forward velocity of flow of fishbone groove structure 44 is greater than the reverse velocity of flow of fishbone groove structure 44, and the feed liquor rate at imbibition passageway 2 self both ends is different promptly, and when the topping up, the first end feed liquor rate of fishbone groove structure 44 is fast, and then extrudes the gas in imbibition passageway 2 and discharge from its second end, and the gas of imbibition passageway 2 will discharge gradually at the in-process that liquid was filled.

Further, the branched slot segment 442 includes a first wall 443 and a second wall 445 spaced apart from each other, and the first wall 443 and the second wall 445 are connected to the main slot segment 440, the first wall 443 is close to the first end of the main slot segment 440 relative to the second wall 445, an included angle b formed between the first wall 443 and a sidewall of the main slot segment 440 connected thereto is greater than 90 °, and an included angle c formed between the second wall 445 and a sidewall of the main slot segment 440 connected thereto is less than 90 °.

Because the main groove section 440 is a capillary groove, the main groove section 440 has a capillary action on the liquid, and the included angle b formed between the first wall surface 443 and the side wall surface of the main groove section 440 connected to the first wall surface is greater than 90 °, when the liquid flowing from the first end to the second end of the fishbone 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 that the liquid can smoothly spread and wet to the first wall surface 443, fill the branch groove section 442 along the first wall surface 443, and continue to flow to the second end of the fishbone groove structure 44; the included angle c formed by the second wall surface 445 and the side wall surface of the main groove section 440 connected with the second wall surface is smaller than 90 degrees, so that when liquid flowing from the second end of the fishbone groove structure 44 to the first end of the fishbone groove structure passes through the junction of the main groove section 440 and the second wall surface 445, the liquid forms infiltration liquid, the capacity of the liquid absorbed on the wall surface can be increased, the difficulty of the liquid expanding and infiltrating to the second wall surface 445 is increased, the flowing of the liquid can be retarded, the speed of the liquid flowing through the fishbone groove structure 44 along different directions is different, and further when the liquid is filled into the liquid absorption channel 2, the first end with fast liquid feeding is discharged, and the second end with slow liquid feeding is discharged.

Further, the branch groove section 442 is a capillary groove, so that the capillary force to which the liquid is subjected within the branch groove section 442 is increased to facilitate the flow filling of the liquid.

Wherein the trunk trough section 440 is a capillary trough, it facilitates the transport of liquid toward the atomizing surface 34 to reduce the amount of liquid remaining in the fishbone trough structure 44. The branched slot segments 442 are capillary slots that further increase the rate and extent of liquid transport to the atomizing surface 34, resulting in a more complete atomization surface 34 and less liquid residue within the fishbone slot structure 44.

The branched slot segments 442 may also be non-capillary slots, and the branched slot segments 442 may store more liquid.

Fig. 17 is a schematic top view of a seal of the atomizer of fig. 4, as shown in fig. 17. The fishbone groove structure 44 further comprises a liquid collecting groove section 446, the main groove section 440 is communicated with the liquid collecting groove section 446 and penetrates through the liquid collecting groove section 446, namely, the liquid collecting groove section 446 is positioned in the middle of the extending path of the main groove section 440, wherein the width dimension A of the liquid collecting groove section 446 along the extending direction thereof is larger than the width dimension B of the main groove section 440. The sump section 446 is a non-capillary groove and the width dimension a of the sump section 446 is less than or equal to the width dimension C of the fishbone groove structure 44 along its extension.

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 the characteristic of the forward and reverse flow rate difference of the fishbone groove structure 44 is not affected at all.

The number of the fishbone groove structures 44 can be one or more, the fishbone groove structures 44 cross the liquid suction surface 32, wherein a plurality of fishbone groove structures 44 can be arranged side by side to occupy the area corresponding to the liquid suction surface 32 as much as possible, so that the liquid suction rate of the liquid suction surface 32 is higher and the liquid supply is more uniform, and the flow guide walls 43 between the adjacent fishbone groove structures 44 can also be porous matrixes such as liquid suction cotton, porous glass or porous ceramic, and the like, so that the liquid suction rate and the liquid supply uniformity are further improved.

Referring to fig. 10, 12 and 18 in combination, fig. 18 is a schematic axial side view of a sealing member in the atomizer shown in fig. 4, when the flow rate adjusting structure 80 is disposed in the first lower liquid passage 1 and/or the second lower liquid passage 3, the sealing member 40 cooperates with the atomizing core 30 to form the liquid suction passage 2.

Specifically, a liquid guiding groove 42 is arranged on one side of the sealing member 40 facing the liquid absorbing surface 32, the liquid guiding groove 42 crosses the liquid absorbing surface 32, two ends of the liquid guiding groove 42 are respectively communicated with the first lower liquid channel 1 and the second lower liquid channel 3, and the sealing member 40 is matched with the atomizing core 30, so that the liquid absorbing surface 32 is covered on the liquid guiding groove 42 to form the liquid absorbing channel 2.

Alternatively, the liquid guide groove 42 may be provided on the liquid suction surface 32, and the sealing member 40 covers the liquid guide groove 42 to form the liquid suction passage 2.

As shown in FIG. 18, the fluid conducting channel 42 may be a large-sized through channel, i.e., a channel having no other structures disposed therein, having an area as close as possible to the area of the aspirating surface 32, may have a relatively deep depth so as not to provide capillary action, or may have a relatively shallow depth so as to provide capillary action in cooperation with the aspirating surface 32 so as to facilitate the transfer of fluid from the bottom of the channel to the aspirating surface 32.

Further, referring to fig. 19, fig. 19 is a schematic diagram of yet another axial configuration of a seal in the atomizer of fig. 4.

At least one flow guide wall 43 is arranged on the bottom wall of the liquid guide groove 42, the flow guide wall 43 divides the liquid guide groove 42 into at least two capillary grooves 420, the capillary force of the capillary grooves 420 on liquid can accelerate the flow rate of the liquid passing through the liquid guide groove 42, and the residual liquid at the bottom of the capillary grooves 420 can be conveyed to the liquid absorption surface 32, so that the residual amount is reduced.

As shown in fig. 19, two flow guide walls 43 are disposed 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. The number of the guide walls 43 may be three or four, which will not be described in detail.

Further, the width dimension of the capillary groove 420 along the extending direction thereof is smaller than the depth dimension thereof, the number of the capillary grooves 420 is plural and the capillary grooves are arranged side by side along the width direction thereof, so as to increase the liquid capacity thereof by utilizing the depth direction of the liquid guiding groove 42, and the plural capillary grooves 420 arranged side by side can supply liquid more uniformly to the liquid absorbing surface 32.

The capillary groove 420 crosses the liquid absorbing surface 32 of the atomizing core 30, and the liquid in the capillary groove 420 is subjected to a larger capillary force during liquid filling, so that the liquid is filled in the liquid guide groove 42 and flows, further, the capillary action of the liquid guide groove 42 is beneficial to reducing the residual liquid in the liquid guide groove 42, and the utilization rate of the liquid is improved.

To further illustrate the residual amount in the two liquid guiding grooves 42, a chart 20 is now provided, which is drawn after experimental verification, as shown in fig. 20, in the embodiment of dividing the liquid guiding groove 42 into the capillary groove 420, the amount of liquid remaining in the liquid guiding groove 42 is below 5 mg; in the embodiment where the liquid guide groove 42 is a straight groove, the amount of liquid remaining in the liquid guide groove 42 is about 20 mg; it can be seen that by dividing the liquid guide tank 42 into a plurality of capillary grooves 420, the amount of liquid remaining in the grooves can be significantly reduced, and the utilization rate of the liquid can be increased. The liquid flows in the liquid guiding groove 42 and receives the combined action of capillary force and flow resistance, and the liquid guiding groove 42 is arranged into a plurality of capillary grooves 420 to replace the liquid guiding groove 42 which is a straight groove, so that the capillary force in the liquid guiding groove 42 is increased to facilitate the liquid flow filling, and the liquid at the bottom of the liquid guiding groove 42 moves upwards due to the capillary action and is absorbed by the liquid absorbing surface 32, thereby reducing the residual amount of the liquid in the liquid guiding groove 42.

Further, the flow guide wall 43 between two adjacent capillary grooves 420 is a porous substrate, which may be absorbent cotton, porous glass, or porous ceramic. The imbibition face 32 is covered in the liquid guide groove 42 and is contacted with the flow guide wall 43, and the flow guide wall 43 is used for conveying the liquid in the liquid guide groove 42 to the imbibition face 32, so that the portion which cannot absorb the liquid and is originally covered on the imbibition face 32 can absorb the liquid, the area which can absorb the liquid on the imbibition face 32 is larger, and the liquid supply speed of the atomization core 30 is faster and more sufficient.

Alternatively, a communication port (not shown) is provided in the flow guide wall 43 between two adjacent capillary grooves 420, and the communication port communicates with two adjacent capillary grooves 420, so that the liquid amount in each capillary groove 420 is kept the same at all times, which helps to keep more uniform liquid supply to the liquid suction surface 32.

Further, referring to fig. 21, fig. 21 is a schematic diagram of another top view of the seal of the atomizer shown in fig. 4. Capillary groove 420 includes capillary portion 421 and liquid storage portion 422 that communicate, wherein the quantity of capillary portion 421 and liquid storage portion 422 is unlimited, the liquid amount that liquid storage portion 422 stores is more than the liquid amount that capillary portion 421 stores, capillary portion 421 has the capillary action to liquid, capillary portion 421 is used for accelerating the mobile filling of liquid and reducing the raffinate in liquid guide groove 42, liquid storage portion 422 does not have the capillary action to liquid, liquid storage portion 422 is used for increasing the liquid storage volume in imbibition passageway 2 and increasing the available imbibition area of imbibition surface 32. The capillary 421 or the liquid storage 422 is connected to the corresponding first lower liquid channel 1 or the second lower liquid channel 3.

For example, the liquid guide groove 42 includes a plurality of capillary portions 421 and a plurality of liquid storage portions 422 arranged in an array, and the adjacent capillary portions 421 and liquid storage portions 422 communicate with each other; or the liquid guide groove 42 comprises a plurality of capillary parts 421 and a plurality of liquid storage parts 422 which are arranged in a straight line, and the capillary parts 421 and the liquid storage parts 422 are communicated in sequence.

Through setting up the predetermined velocity of flow of liquid from first lower liquid passageway to imbibition passageway direction and being greater than the predetermined velocity of flow of liquid from second lower liquid passageway to imbibition passageway direction, when the topping up, the liquid in the stock solution storehouse is predetermine the one end that the velocity of flow is fast always and gets into the imbibition passageway, gas in the imbibition passageway receives the extrusion of one end liquid flow and is discharged from the other end of imbibition passageway gradually, make gas be difficult to gather in the imbibition passageway, avoid having the bubble in the imbibition passageway and lead to the influence to the confession liquid of imbibition face, can solve the problem that the generation efficiency of aerosol reduces and easily produces burnt flavor influence taste in the atomizer, thereby can effectively maintain the higher risk that produces the burnt flavor of aerosol in the atomizer.

The above description is only an example of the present application and is not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings, or which are directly or indirectly applied to other related technical fields, are intended to be included within the scope of the present application.

Claims (14)

1. An atomizer, characterized in that it comprises:

the liquid storage bin is used for storing liquid;

the liquid storage device comprises a first lower liquid channel, a liquid suction channel and a second lower liquid channel which are sequentially communicated, wherein the first lower liquid channel and the second lower liquid channel are respectively communicated with the liquid storage bin;

the atomizing core is provided with a liquid suction surface, and the liquid suction surface is at least one part of the inner wall surface of the liquid suction channel;

the flow velocity adjusting structure is arranged in at least one of the first liquid descending channel, the liquid suction channel and the second liquid descending channel, and the flow velocity adjusting structure enables the preset flow velocity from the first liquid descending channel to the liquid suction channel to be larger than the preset flow velocity from the second liquid descending channel to the liquid suction channel;

the flow velocity adjusting structure is a flow velocity accelerating structure which is arranged in the liquid suction channel or in the first lower liquid channel and the liquid suction channel; or

The flow speed adjusting structure is a flow speed slowing structure, and the flow speed slowing structure is arranged in the second lower liquid channel; or

The flow velocity adjusting structure is a flow guide structure with inconsistent two-way flow velocity, and the flow guide structure is arranged at least one of the liquid suction channel, the first lower liquid channel and the second lower liquid channel;

wherein, when the liquid in stock solution storehouse is full of gradually when imbibition passageway, liquid is followed first imbibition passageway extremely the predetermined velocity of flow of imbibition passageway direction is greater than liquid is followed the second is down the passageway extremely the predetermined velocity of flow of imbibition passageway direction, thereby liquid is full of imbibition passageway and the bubble of exhaust are passed through the second is down the passageway and is discharged the stock solution storehouse.

2. A nebulizer as claimed in claim 1, wherein the flow rate accelerating structure is a capillary groove structure extending in a direction from the first lower liquid passage to the liquid suction passage.

3. The atomizer of claim 1, wherein the flow guiding structure is a fishbone groove structure, the fishbone groove structure comprises a main flow guiding section and a plurality of branch flow guiding sections disposed on at least one side of the main flow guiding section, the main flow guiding section is a capillary channel, and an included angle between an extending direction of the branch flow guiding sections and an extending direction of a first end to a second end of the main flow guiding section is an acute angle.

4. The atomizer of claim 3, wherein said branched flow guide section comprises a first wall surface and a second wall surface spaced apart from each other, and said first wall surface and said second wall surface are connected to a side wall surface of said main flow guide section, said first wall surface is close to a first end of said main flow guide section relative to said second wall surface, an included angle formed between said first wall surface and a side wall surface of said main flow guide section connected thereto is greater than 90 °, and an included angle formed between said second wall surface and a side wall surface of said main flow guide section connected thereto is less than 90 °.

5. The atomizer of claim 3 or 4, wherein said branched flow directing section is a capillary blind channel.

6. The nebulizer of claim 3, wherein the fishbone trough structure further comprises a liquid collecting section, wherein the main flow guiding section communicates with and passes through the liquid collecting section, and wherein a width dimension of the liquid collecting section in an extending direction thereof is larger than a width dimension of the main flow guiding section.

7. A nebulizer as claimed in claim 1, wherein the first lower liquid passage is a capillary passage and the characteristic dimension of the cross-section of the first lower liquid passage in the direction of extension thereof is smaller than the characteristic dimension of the cross-section of the second lower liquid passage in the direction of extension thereof.

8. The atomizer of claim 7, wherein the characteristic dimension of said first downcomer channel and the characteristic dimension of said second downcomer channel are each in the range of 0.4mm to 7.0 mm.

9. The nebulizer of claim 1, further comprising:

the atomizing base is embedded in the liquid storage bin and provided with the first lower liquid channel and the second lower liquid channel, and the atomizing core is arranged on the atomizing base;

wherein, the atomizing seat and the atomizing core are matched to form the liquid suction channel.

10. The nebulizer of claim 1, further comprising:

the atomizing base is embedded in the liquid storage bin and provided with the first lower liquid channel and the second lower liquid channel, and the atomizing core is arranged on the atomizing base;

the sealing element is connected with the atomizing base and covers the liquid suction surface;

wherein the sealing member cooperates with the atomizing core to form the liquid suction passage.

11. The atomizer of claim 10, wherein a liquid-guiding channel is formed on a side of said sealing member facing said liquid-absorbing surface, said liquid-guiding channel crosses said liquid-absorbing surface, and said liquid-absorbing surface is covered on said liquid-guiding channel to form said liquid-absorbing passage.

12. An atomiser according to claim 11, wherein the liquid-conducting channel is a straight-through channel; or

The bottom wall of the liquid guide groove is provided with at least one flow guide wall, and the flow guide wall divides the liquid guide groove into at least two capillary grooves.

13. A nebulizer as claimed in claim 12, wherein the flow directing wall is a porous matrix; or

The flow guide wall is provided with a communicating opening.

14. An electronic atomisation device comprising a power supply and an atomiser as claimed in any one of claims 1 to 13, the power supply being connected to and supplying power to the atomiser.

Images