Electronic atomization device and atomizer thereof

Abstract

The present application discloses an electronic atomization device and an atomizer thereof. The atomizer includes: a liquid storage tank for storing liquid; a first lower liquid channel, a liquid suction channel, and a second lower liquid channel that are connected in sequence, and the first lower liquid channel and the second lower liquid channel are respectively connected to the liquid storage tank; an atomizing core having a liquid suction surface, which is at least a portion of the inner wall surface of the liquid suction channel; wherein, when the liquid in the liquid storage tank gradually fills the liquid suction channel, the preset flow rate of the liquid from the first lower liquid channel to the liquid suction channel is greater than the preset flow rate of the liquid from the second lower liquid channel to the liquid suction channel, so that the bubbles discharged when the liquid fills the liquid suction channel are discharged to the liquid storage tank through the second lower liquid channel. By making the liquid inlet rate at both ends of the liquid suction channel different when filling the liquid, the atomizer provided by the present application can completely discharge the gas in the liquid suction channel, making it difficult for trapped bubbles to form in the liquid suction channel.

Description

[0001] This application claims priority to PCT patent application number PCT / CN2020 / 112672 filed on August 31, 2020, and entitled “Atomization Assembly and Electronic Atomization Device,” which is incorporated herein by reference in its entirety. Technical Field

[0002] The present application relates to the field of atomization technology, and in particular to an electronic atomization device and an atomizer thereof. Background Art

[0003] Conventional electronic atomization devices primarily consist of an atomizer and a power supply. The atomizer typically includes a liquid reservoir for storing atomizable medium and an atomizing assembly for heating and atomizing the atomizable medium to form an aerosol for the user. The power supply provides energy to the atomizer.

[0004] When assembling an existing atomizer, the atomizer shell is inverted, the liquid is injected first, and then the heating seat, sealing silicone, atomizer core, etc. are installed. After the installation is completed, the atomizer is turned over. At this time, the liquid flows to the liquid suction channel and the atomizer core under the action of gravity. Because there is air in the liquid supply channel, some of the air is difficult to discharge, and air is easily trapped in it to form bubbles. The location of the bubbles is often located on the liquid suction surface of the atomizer, which affects the replenishment of the atomizable medium, resulting in a decrease in the aerosol volume of the atomizer and a burnt smell. Summary of the Invention

[0005] The present application mainly provides an electronic atomization device and an atomizer thereof to solve the problem that bubbles are retained in the liquid supply channel of the electronic atomization device and affect the replenishment of the atomizable medium.

[0006] To solve the above technical problems, the present application adopts a technical solution: providing an atomizer. The atomizer includes: a liquid storage tank for storing liquid; a first liquid lowering channel, a liquid suction channel, and a second liquid lowering channel connected in sequence, wherein the first liquid lowering channel and the second liquid lowering channel are respectively connected to the liquid storage tank; an atomizer core having a liquid suction surface, wherein the liquid suction surface is at least a portion of the inner wall surface of the liquid suction channel; wherein, when the liquid in the liquid storage tank gradually fills the liquid suction channel, the preset flow rate of the liquid from the first liquid lowering channel to the liquid suction channel is greater than the preset flow rate of the liquid from the second liquid lowering channel to the liquid suction channel, so that bubbles discharged when the liquid fills the liquid suction channel are discharged into the liquid storage tank through the second liquid lower channel.

[0007] In some embodiments, the atomizer further includes a flow rate adjustment structure, which is arranged in at least one of the first lower liquid channel, the suction channel, and the second lower liquid channel, and the flow rate adjustment structure makes the preset flow rate from the first lower liquid channel to the suction channel greater than the preset flow rate from the second lower liquid channel to the suction channel.

[0008] In some embodiments, the flow rate adjustment structure is a flow rate acceleration structure, and the flow rate acceleration structure is arranged in the first liquid lowering channel and / or the liquid suction channel.

[0009] In some embodiments, the flow rate accelerating structure is a capillary groove structure extending from the first liquid lowering channel to the liquid suction channel.

[0010] In some embodiments, the flow rate adjustment structure is a flow rate slowing structure, and the flow rate slowing structure is provided in the second lower liquid channel.

[0011] In some embodiments, the flow rate adjustment structure is a flow guide structure with inconsistent bidirectional flow rates, and the flow guide structure is provided at least in one of the liquid suction channel, the first lower liquid channel, and the second lower liquid channel.

[0012] In some embodiments, the guide structure is a fishbone trough structure, which includes a main guide section and several branch guide sections arranged on at least one side of the main guide section. The main guide section is a capillary channel, and the angle between the extension direction of the branch guide section and the extension direction from the first end to the second end of the main guide section is an acute angle.

[0013] In some embodiments, the branch diversion section includes a first wall surface and a second wall surface spaced apart from each other, and the first wall surface and the second wall surface are connected to the side wall surface of the main diversion section, the first wall surface is close to the first end of the main diversion section relative to the second wall surface, the angle formed between the first wall surface and the side wall surface of the main diversion section connected thereto is greater than 90°, and the angle formed between the second wall surface and the side wall surface of the main diversion section connected thereto is less than 90°.

[0014] In some embodiments, the branch diversion section is a capillary blind channel.

[0015] In some embodiments, the fishbone trough structure further includes a liquid gathering section, the main guide section is connected to the liquid gathering section and passes through the liquid gathering section, wherein the width dimension of the liquid gathering section along its extension direction is greater than the width dimension of the main guide section.

[0016] In some embodiments, the first lower liquid channel is a capillary channel, and a characteristic dimension of a cross section of the first lower liquid channel along its extension direction is smaller than a characteristic dimension of a cross section of the second lower liquid channel along its extension direction.

[0017] In some embodiments, the characteristic dimensions of the first lower liquid channel and the characteristic dimensions of the second lower liquid channel are both in the range of 0.4 mm to 7.0 mm.

[0018] In some embodiments, the atomizer further comprises:

[0019] an atomizer seat, embedded in the liquid storage tank and provided with the first liquid lower channel and the second liquid lower channel, and the atomizer core is arranged on the atomizer seat;

[0020] Wherein, the atomizer seat and the atomizer core cooperate to form the liquid suction channel.

[0021] In some embodiments, the atomizer further comprises:

[0022] an atomizer seat, embedded in the liquid storage tank and provided with the first liquid lower channel and the second liquid lower channel, and the atomizer core is arranged on the atomizer seat;

[0023] A sealing member connected to the atomizing seat and covering the liquid suction surface;

[0024] Wherein, the sealing member cooperates with the atomizing core to form the liquid suction channel.

[0025] In some embodiments, a liquid guide groove is provided on a side of the sealing member facing the liquid absorbing surface, the liquid guide groove spans the liquid absorbing surface, and the liquid absorbing surface cover is provided on the liquid guide groove to form the liquid absorbing channel.

[0026] In some embodiments, the liquid-conducting groove is a straight groove; or

[0027] At least one guide wall is provided on the bottom wall of the liquid-conducting groove, and the guide wall divides the liquid-conducting groove into at least two capillary grooves.

[0028] In some embodiments, the guide wall is a porous matrix; or

[0029] The guide wall is provided with a communication port.

[0030] 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 atomizer as described above, wherein the power supply is connected to the atomizer and supplies power to the atomizer.

[0031] The beneficial effects of the present application are as follows: Different from the prior art, the present application discloses an electronic atomization device and an atomizer thereof. By setting the preset flow rate of the liquid from the first liquid lowering channel to the liquid suction channel to be greater than the preset flow rate of the liquid from the second liquid lowering channel to the liquid suction channel, when filling the liquid, the liquid in the liquid storage tank always enters the liquid suction channel from the end with a faster preset flow rate, and the gas in the liquid suction channel is squeezed by the liquid flow at one end and gradually discharged from the other end of the liquid suction channel, that is, when filling the liquid, the first liquid lowering channel discharges liquid and the second liquid lowering channel exhausts gas, making it difficult for gas to gather in the liquid suction channel, avoiding the presence of bubbles in the liquid suction channel and affecting the liquid supply to the liquid suction surface, which can solve the problems of reduced aerosol generation efficiency in the atomizer and easy generation of burnt smell that affects the taste, thereby effectively maintaining the aerosol generation efficiency in the atomizer at a high level and a low risk of generating burnt smell. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. Those skilled in the art can also derive other drawings based on these drawings without inventive work, among which:

[0033] Figure 1 This is a schematic structural diagram of an embodiment of the electronic atomization device provided by the present application;

[0034] Figure 2 yes Figure 1 A schematic structural diagram of an atomizer in the electronic atomization device shown;

[0035] Figure 3 yes Figure 2 A schematic cross-sectional view of the atomizer shown;

[0036] Figure 4 yes Figure 2 Schematic diagram of the explosion structure of the atomizer shown;

[0037] Figure 5 yes Figure 3 An enlarged structural diagram of area A in the atomizer shown;

[0038] Figure 6 yes Figure 4 A schematic cross-sectional view of the atomizer seat in the atomizer shown;

[0039] Figure 7 yes Figure 4 A schematic structural diagram of the atomizer seat in the atomizer shown in FIG.

[0040] Figure 8 3. This is a fluid force analysis diagram of the first lower liquid channel and the second lower liquid channel when they are filled with liquid;

[0041] Figure 9 This is a schematic diagram of the distribution of liquid and gas in the atomizer at 0.4s after the start of filling with different lower liquid port size models;

[0042] Figure 10 yes Figure 2 A schematic diagram of the flow rate adjustment structure of the atomizer shown is arranged in the first lower liquid channel;

[0043] Figure 11 yes Figure 2 Another structural schematic diagram of the atomizer seat in the atomizer shown;

[0044] Figure 12 yes Figure 2 A schematic diagram of the flow rate adjustment structure of the atomizer shown is arranged in the second lower liquid channel;

[0045] Figure 13 yes Figure 2 A schematic diagram of a flow rate adjustment structure in an atomizer provided in a liquid suction channel;

[0046] Figure 14 yes Figure 4 A schematic diagram of an axial side structure of a seal in the atomizer shown;

[0047] Figure 15 It is a structural diagram of a diversion structure;

[0048] Figure 16 yes Figure 14 A schematic diagram of the top view of the seal shown;

[0049] Figure 17 yes Figure 4 Another schematic diagram of the top view of the sealing member in the atomizer shown;

[0050] Figure 18 yes Figure 4 Another axial side structural diagram of the seal in the atomizer shown

[0051] Figure 19 yes Figure 4 A schematic diagram of another axial structure of the sealing element in the atomizer shown;

[0052] Figure 20 yes Figure 18 and Figure 19 Schematic diagram of the seal shown after residual liquid verification test;

[0053] Figure 21 yes Figure 4 Another schematic diagram of the top view of the sealing element in the atomizer is shown. DETAILED DESCRIPTION

[0054] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0055] The terms "first", "second" and "third" in the embodiments of the present application are only used for descriptive purposes and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second" and "third" may explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. 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 may optionally also include steps or units that are not listed, or may optionally also include other steps or units inherent to these processes, methods, products or devices.

[0056] References to "embodiments" herein mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0057] This application provides an electronic atomization device 300, see Figures 1 to 3 , Figure 1 This is a schematic structural diagram of an embodiment of the electronic atomization device provided by this application. Figure 2 yes Figure 1 The schematic diagram of the structure of the atomizer in the electronic atomization device shown in FIG. Figure 3 yes Figure 2 Schematic diagram of the cross-sectional structure of the atomizer shown.

[0058] The electronic atomization device 300 can be used to atomize an atomizable matrix, such as a liquid medicine or nutrient solution, to form an aerosol for easy ingestion 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. The atomizer 100 is used to store the atomizable matrix and atomize the atomizable matrix to form an aerosol for ingestion by the user.

[0059] It can be understood that in some embodiments, the atomizer 100 and the power supply 200 can be detachably connected, which can be plug-in or screw-connected, that is, the atomizer 100 and the power supply 200 can be two relatively independent components, the atomizer 100 is disposable and replaceable, and the power supply 200 is non-disposable, that is, the power supply 200 can be charged and used multiple times; the atomizer 100 can also be non-disposable and can be used multiple times after being refilled with liquid.

[0060] 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 type of electronic atomization device 300 is usually disposable and can be discarded after the atomizable matrix is exhausted.

[0061] like Figure 2 and Figure 3 As shown, the atomizer 100 is provided with a first lower liquid channel 1, a liquid suction channel 2 and a second lower liquid channel 3 which are connected in sequence, and the liquid suction surface 32 of the atomizer 100 is at least a portion of the inner wall surface of the liquid suction channel 2; wherein, the preset flow rate of the liquid from the first lower liquid channel 1 to the liquid suction channel 2 is greater than the preset flow rate of the liquid from the second lower liquid channel 3 to the liquid suction channel 2.

[0062] Specifically, the atomizer 100 has a liquid storage tank 12 for storing an atomizable matrix and an atomizing core 30 for atomizing the atomizable matrix. The first lower liquid channel 1 and the second lower liquid channel 3 are both connected to the liquid storage tank 12 and the liquid suction channel 2. The atomizable matrix in the liquid storage tank 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 has a liquid suction surface 32, and the liquid suction surface 32 is at least a portion of the inner wall surface of the liquid suction channel 2, that is, it can absorb the atomizable matrix from the liquid suction channel 2.

[0063] It should be noted that the preset flow rate referred to in this article refers to the flow rate measured when liquid enters from one end of the channel and the other end of the channel is open.

[0064] The preset flow rate of the liquid from the first lower liquid channel 1 to the liquid suction channel 2 is greater than the preset flow rate of the liquid from the second lower liquid channel 3 to the liquid suction channel 2. The preset flow rate of the liquid flowing through the first lower liquid channel 1 can be greater than the preset flow rate of the liquid flowing through the second lower liquid channel 3, or the preset flow rate of the liquid from the first lower liquid channel 1 to the second lower liquid channel 3 through the liquid suction channel 2 is greater than the preset flow rate of the liquid from the second lower liquid channel 3 to the first lower liquid channel 1 through the liquid suction channel 2, or the preset flow rate of the liquid flowing through the first lower liquid channel 1 and the liquid suction channel 2 in sequence is greater than the preset flow rate of the liquid flowing through the second lower liquid channel 3 and the liquid suction channel 2 in sequence.

[0065] When the liquid in the liquid storage tank 12 gradually fills the liquid suction channel 2, the preset flow rate of the liquid from the first lower liquid channel 1 to the liquid suction channel 2 is greater than the preset flow rate of the liquid from the second lower liquid channel 3 to the liquid suction channel 2, so that the bubbles discharged when the liquid fills the liquid suction channel 2 are discharged to the liquid storage tank 12 through the second lower liquid channel 3.

[0066] In actual application, when the liquid storage tank 12 stores an atomizable matrix and the atomizable matrix has not entered the first lower liquid channel 1 and the second lower liquid channel 3, because the preset flow rate of the liquid from the first lower liquid channel 1 to the liquid suction channel 2 is greater than the preset flow rate of the liquid from the second lower liquid channel 3 to the liquid suction channel 2, the atomizable matrix always enters from the end with a faster preset flow rate. In other words, the atomizable matrix enters the liquid suction channel 2 from the end with a faster preset flow rate, and discharges the gas in the liquid suction channel 2 from the other end, making it difficult for the gas to gather in the liquid suction channel 2, especially the gas gathered in the central area thereof, avoiding the presence of bubbles in the liquid suction channel 2 and affecting the liquid supply to the liquid suction surface 32, which can solve the problems of reduced aerosol generation efficiency and easy generation of burnt smell affecting taste in the atomizer 100, thereby effectively maintaining the high aerosol generation efficiency and low risk of generating burnt smell in the atomizer 100.

[0067] It should be noted that when the first liquid lowering channel 1, the liquid suction channel 2, and the second liquid lowering channel 3 are filled with the aerosolizable matrix, the flow rate of the aerosolizable matrix in the first liquid lowering channel 1, the liquid suction channel 2, and the second liquid lowering channel 3 is the same. The above-mentioned process of discharging the gas in the liquid suction channel 2 is completed when the aerosolizable matrix liquid is discharged and fills the first liquid lowering channel 1, the liquid suction channel 2, and the second liquid lowering channel 3, that is, it is completed during the process of filling the first liquid lowering channel 1, the liquid suction channel 2, and the second liquid lowering channel 3 with liquid.

[0068] The first lower liquid channel 1, the liquid suction channel 2 and the second lower liquid channel 3 can all be one or more, or the number of the first lower liquid channel 1, the liquid suction channel 2 and the second lower liquid channel 3 can also be different, and this application does not impose any specific restrictions on this.

[0069] The cross-sections of the first lower liquid channel 1, the liquid suction channel 2 and the second lower liquid channel 3 along the extension direction can be regular shapes such as circles or rectangles, or can be irregular polygons such as triangles or quadrilaterals, and their cross-sections along the extension direction can be the same or variable, and this application does not impose any specific restrictions on this.

[0070] See also Figures 2 to 5 ,in Figure 4 yes Figure 2 The explosion structure diagram of the atomizer is shown in FIG. Figure 5 yes Figure 3 Schematic diagram of the enlarged structure of area A in the atomizer shown.

[0071] The atomizer 100 includes an atomizer housing 10, an atomizer seat 20, an atomizer core 30, a seal 40, a base 50, and an end cap 60. The atomizer seat 20 is embedded in the atomizer housing 10, and the atomizer core 30 and the seal 40 are both connected to the atomizer seat 20. The base 50 covers the open end of the atomizer housing 10 and cooperates with the atomizer seat 20 to fix the atomizer core 30 and the seal 40. The end cap 60 further covers the base 50 and is covered on the open end of the atomizer housing 10. The end cap 60 is snap-fitted to the atomizer housing 10 to fix the base 50.

[0072] In other embodiments, the end cover 60 may not be provided, and the base 50 may be fixed to the atomizing housing 10 by fasteners such as screws or pins; or the base 50 may be directly engaged with the atomizing housing 10 .

[0073] See Figure 5 The atomizing core 30 has a liquid absorption surface 32 and an atomizing surface 34. The atomizing core 30 absorbs the atomizable matrix through the liquid absorption surface 32 and atomizes the atomizable matrix into an aerosol for inhalation by the user on one side of the atomizing surface 34. The liquid absorption surface 32 and the atomizing surface 34 can be two separate surfaces, for example, the liquid absorption surface 32 and the atomizing surface 34 are two opposite sides, or the liquid absorption surface 32 and the atomizing surface 34 are two adjacent sides, or the liquid absorption surface 32 and the atomizing surface 34 can be two different parts on the same side, which is not specifically limited in this application.

[0074] like Figures 3 to 5 As shown, the atomizer shell 10 includes a liquid storage tank 12 and an air outlet pipe 14. The liquid storage tank 12 is a cylindrical structure with one end closed and the other end open. The air outlet pipe 14 is located in the liquid storage tank 12, is connected to the closed end of the liquid storage tank 12 and communicates with the outside world through the closed end. The user absorbs the aerosol generated in the atomizer 100 through the end of the air outlet pipe 14 that is connected to the outside world.

[0075] The atomizer seat 20 is embedded in the liquid storage tank 12 from the open end of the liquid storage tank 12, and one end of the air outlet pipe 14 is plugged into the aerosol outlet 21 of the atomizer seat 20. The atomizer seat 20 and the liquid storage tank 12, as well as the air outlet pipe 14 and the aerosol outlet 21 are sealed to prevent leakage.

[0076] In this embodiment, the atomizer seat 20 is provided with a first liquid lowering channel 1 and a second liquid lowering channel 3. The first liquid lowering channel 1 and the second liquid lowering channel 3 are both connected to the liquid storage tank 12 for lowering liquid.

[0077] In other embodiments, a groove is provided on the outer wall of the atomizer seat 20 or the inner wall of the liquid storage tank 12, and the outer wall of the atomizer seat 20 and the inner wall of the liquid storage tank 12 cooperate to form the first lower liquid channel 1 and the second lower liquid channel 3. Alternatively, the first lower liquid channel 1 and the second lower liquid channel 3 are provided on the inner wall of the liquid storage tank 12. Alternatively, one of the atomizer seat 20 and the liquid storage tank 12 may be provided with the first lower liquid channel 1, and the other may be provided with the second lower liquid channel 3, which is not specifically limited in this application.

[0078] like Figure 6 As shown, Figure 6 yes Figure 4 The atomizer seat 20 is further provided with a receiving cavity 22, in which the atomizer core 30 is embedded, and the atomizer core 30 is sealed to the atomizer seat 20 to prevent liquid leakage.

[0079] In this embodiment, combined with Figure 5 and Figure 6 The atomizer base 20 is also provided with an atomizer chamber 24, which is directly connected to the air outlet pipe 14. The atomizer chamber 24 is located on the side where the atomizing surface 34 is located, that is, the atomizing surface 34 faces the air outlet pipe 14. Therefore, the aerosol generated in the atomizer chamber 24 can be directly guided to the user's oral cavity through the air outlet pipe 14, which relatively shortens the distance from the aerosol to the user's oral cavity and reduces the time for the aerosol to dissipate heat. As a result, the aerosol reaching the user's oral cavity is at a higher temperature. Moreover, the aerosol can reach the oral cavity directly without passing through the condensation tank on the atomizer base 20. As a result, the aerosol carries less water, and the taste presented to the user is better.

[0080] The liquid suction surface 32 is a side surface of the atomizer core 30 that is opposite to the atomizing surface 34. The sealing member 40 is embedded in the accommodating cavity 22 of the atomizer seat 20 to connect with the atomizer seat 20 and cooperates with the atomizer core 30 to form the liquid suction channel 2. The base 50 abuts against the side of the sealing member 40 that is away from the atomizer core 30, so that the sealing member 40 cooperates with the atomizer seat 20 to fix the atomizer core 30. The liquid suction surface 32 is a portion of the inner wall surface of the liquid suction channel 2.

[0081] Specifically, see Figure 6 and Figure 7 , Figure 7 yes Figure 4A schematic structural diagram of the atomizer seat in the atomizer shown in FIG. The accommodating chamber 22 includes a first cavity 220 and a second cavity 222 that are connected. The first cavity 220 is disposed between the second cavity 222 and the atomizing chamber 24 and is in communication with each other. The cavity space of the first cavity 220 is smaller than the cavity space of the second cavity 222. The atomizing core 30 is embedded in the first cavity 220 and sealed therewith. The sealing member 40 is embedded in the second cavity 222. The inner wall of the accommodating cavity 22 is further provided with a plurality of bosses 23. One side of the bosses 23 defines the space for the second cavity 222, while the space surrounded by the bosses 23 defines the space for the first cavity 220. The seal 40 also rests on the bosses 23, and the base 50 is partially embedded in one side of the seal 40, so that the seal 40 seals the second cavity 222 to prevent liquid from leaking out of the second cavity 222. The end of the base 50 facing away from the atomizer core also covers the open end of the liquid storage tank 12. The first and second lower liquid channels 1 and 3 extend from both sides of the atomizer core 30 to the second cavity 222, thereby connecting to the liquid aspiration channel 2.

[0082] Optionally, a liquid suction channel 2 is provided in the atomizer core 30. In other words, the liquid suction channel 2 is a channel extending through the atomizer core 30, and the inner wall surface of the liquid suction channel 2 can be considered as the liquid suction surface 32. A seal 40 can also be embedded in the accommodating cavity 22 to seal one side of the atomizer core 30 to prevent liquid leakage.

[0083] In other embodiments, the atomizing surface 34 of the atomizer core 30 is away from the air outlet pipe 14, while its liquid suction surface 32 faces the air outlet pipe 14, and the atomizer seat 20 and the atomizer core 30 cooperate to form a liquid suction channel 2. For example, a groove structure is formed on the side of the atomizer seat 20 facing the liquid suction surface 32, and the liquid suction surface 32 covers the groove structure to form the liquid suction channel 2, so that the liquid suction surface 32 is a part of the inner wall surface of the liquid suction channel 2, and the sealing member 40 can be arranged between the atomizer seat 20 and the atomizer core 30 to prevent liquid leakage.

[0084] In some embodiments, see Figures 4 to 6 The first lower liquid channel 1 is a capillary channel, and the characteristic dimension of the cross section of the first lower liquid channel 1 along its extension direction is smaller than the characteristic dimension of the cross section of the second lower liquid channel 3 along its extension direction. The characteristic dimension is the minimum dimension of the lower liquid channel. For example, if the cross section of the lower liquid channel is circular, the characteristic dimension is its radial dimension; if the cross section of the lower liquid channel is rectangular, the characteristic dimension is its width dimension; if the cross section of the lower liquid channel is elliptical, the characteristic dimension is its minor axis dimension. The lower liquid channels referred to here include the first lower liquid channel 1 and the second lower liquid channel 3.

[0085] The first lower liquid channel 1 is a capillary channel, and the second lower liquid channel 3 can be a capillary channel or a non-capillary channel.

[0086] The characteristic dimension of the cross section of the first lower liquid channel 1 along its extension direction is smaller than the characteristic dimension of the cross section of the second lower liquid channel 3 along its extension direction. Specifically, this refers to the size relationship between the characteristic dimensions at the same location along the extension direction of the first lower liquid channel 1 and the second lower liquid channel 3. Therefore, the first lower liquid channel 1 is narrower than the second lower liquid channel 3, and the capillary force of the first lower liquid channel 1 on the liquid is stronger, thereby increasing the rate of liquid discharge from the first lower liquid channel 1.

[0087] The first lower liquid channel 1 and the second lower liquid channel 3 can be channel structures with uniform dimensions, that is, the dimensions at all locations in the extension direction are consistent. For example, the dimension characteristics at all locations of the first lower liquid channel 1 are 0.5 mm, and the dimension characteristics at all locations of the second lower liquid channel 3 are 3.2 mm.

[0088] The first lower liquid channel 1 and the second lower liquid channel 3 may also be channel structures whose dimensions vary along the extension direction.

[0089] Specifically, see Figure 8 , Figure 8 This is a force analysis diagram of the fluid in the first lower liquid channel 1 and the second lower liquid channel 3 when filling with liquid. When filling with liquid, the liquid is affected by gravity, capillary force and flow resistance. Take the unit volume of liquid at the lower liquid outlet of the first lower liquid channel 1 and the second lower liquid channel 3 for analysis respectively, and the gravity exerted on the liquid at the two locations is equal G1=G2, where G1 is the gravity of the unit volume of liquid at the first lower liquid channel 1, and G2 is the gravity of the unit volume of liquid at the second lower liquid channel 3; and the liquid at the lower liquid outlet on the smaller side receives a greater capillary force, that is, FT1>FT2, where FT1 is the capillary force exerted on the unit volume of liquid at the lower liquid outlet of the first lower liquid channel 1, and FT2 is the capillary force exerted on the unit volume of liquid at the second lower liquid channel 3. The capillary force exerted on the unit volume of liquid at the lower liquid port; and the flow resistance is positively correlated with the flow rate of the liquid (if the liquid flow velocity is 0 at the initial moment, the flow resistance is 0), that is, f1=f2=0, wherein f1 is the flow resistance exerted on the unit volume of liquid at the lower liquid port of the first lower liquid channel 1, and f2 is the flow resistance exerted on the unit volume of liquid at the lower liquid port of the second lower liquid channel 3; therefore, when filling with liquid, the driving force for the liquid at the lower liquid port of the first lower liquid channel 1 to flow downward is greater, and the liquid preferentially flows out from the first lower liquid channel 1, thereby squeezing the gas in the liquid suction channel 2 and discharging it from the second lower liquid channel 3.

[0090] Further research found that when the liquid is first filled, the flow resistance increases with the increase of the liquid speed, and the smaller the size of the lower liquid port, the greater the flow resistance of the liquid and the slower the filling speed.

[0091] See Figure 9 , Figure 9 This is the distribution diagram of liquid and gas in the atomizer at 0.4s when the filling starts for models with different lower liquid port sizes. Figure 9 (a) In the model, the liquid is discharged from the lower liquid channel with a characteristic size of 0.4 mm and exhausted from the lower liquid channel with a characteristic size of 2.9 mm; Figure 9 (b) In the model, the liquid first flows down from the lower liquid channel with a characteristic size of 0.8 mm and then exhausts from the lower liquid channel with a characteristic size of 2.9 mm; Figure 9 (c) In the model, the liquid first flows down from the lower liquid channel with a characteristic size of 2.9 mm and exhausts from the lower liquid channel with a characteristic size of 5.0 mm; Figure 9 (d) In the model, the liquid first flows down from the lower liquid channel with a characteristic size of 2.9 mm and then exhausts from the lower liquid channel with a characteristic size of 7.0 mm.

[0092] In the above model, the liquid always flows from the side of the liquid outlet with a smaller characteristic size, and the smaller the size of the liquid outlet, the slower the liquid flow speed.

[0093] Further research found that when the characteristic dimensions of the first lower liquid channel 1 and the second lower liquid channel 3 are both within the range of 0.4 mm to 7.0 mm, the liquid always flows out from the side of the lower liquid port with the smaller characteristic dimension, that is, when filling, the liquid always flows out from the first lower liquid channel 1 and exhausts from the second lower liquid channel 3.

[0094] Specifically, the study found that flow resistance increases with the flow rate of the liquid. When the characteristic dimension of the first liquid channel 1 is less than 0.4 mm, the resistance encountered by the liquid in the first liquid channel 1 is too great, making it impossible to ensure that the preset flow rate of the first liquid channel 1 is greater than the preset flow rate of the second liquid channel 3. When the characteristic dimension exceeds 7.0 mm, the capillary force of the first liquid channel 1 and the capillary force of the second liquid channel 3 have roughly the same impact on the preset flow rate, making it impossible to ensure that the liquid flows preferentially from the first liquid channel 1. Within the range of 0.4 mm to 7.0 mm, when filling, the liquid in the liquid storage tank 12 always flows out of the first liquid channel 1 with the smaller characteristic dimension, and exhausts from the second liquid channel 3.

[0095] The characteristic size of the first lower liquid channel 1 can be 0.4mm, 0.6mm, 0.8mm, 1.0mm, 1.2mm, 1.4mm, 1.6mm, 1.8mm or 2.0mm, etc., and the characteristic size of the second lower liquid channel 3 can be 1.6mm, 2.0mm, 2.4mm, 2.9mm, 3.2mm, 3.6mm, 4.2mm, 4.8mm, 5.4mm, 5.8mm or 6.2mm, etc.

[0096] In another embodiment, structural features can be set on the first lower liquid channel 1, the suction channel 2 and the second lower liquid channel 3 to change their preset flow rates, so that the preset flow rate in the direction from the first lower liquid channel 1 to the suction channel 2 is greater than the preset flow rate in the direction from the second lower liquid channel 3 to the suction channel 3.

[0097] Specifically, see Figure 10 、 Figure 12 and Figure 13 The atomizer 100 also includes a flow rate adjustment structure 80, which is arranged in at least one of the first lower liquid channel 1, the suction channel 2 and the second lower liquid channel 3. The flow rate adjustment structure 80 makes the preset flow rate in the direction from the first lower liquid channel 1 to the suction channel 2 greater than the preset flow rate in the direction from the second lower liquid channel 3 to the suction channel 2.

[0098] like Figure 10 As shown, the flow rate adjustment structure 80 can be a flow rate accelerating structure 82, which is arranged in the first lower liquid channel 1 and / or the liquid suction channel 2 to relatively increase the preset flow rate of the first lower liquid channel 1 and / or the liquid suction channel 2, 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 2.

[0099] Optionally, the flow-accelerating structure 82 is a capillary groove structure extending from the first lower liquid channel 1 to the liquid suction channel 2. Specifically, the flow-accelerating structure 82 can be a capillary groove structure provided on the side wall forming the first lower liquid channel 1, or the flow-accelerating structure 82 can be a capillary groove structure provided on the side wall forming the first lower liquid channel 1 and the liquid suction channel.

[0100] Optionally, the flow-accelerating structure 82 may also be a micro water pump or other component.

[0101] In this embodiment, the flow rate accelerating structure 82 is provided in the first lower liquid channel 1 , and the preset flow rate of the first lower liquid channel 1 is greater than the preset flow rate of the second lower liquid channel 3 .

[0102] See Figure 11 , Figure 11 yes Figure 2 Another structural schematic diagram of the atomizer seat in the atomizer shown.

[0103] In this embodiment, the flow-speed accelerating structure 82 is a capillary groove 25 .

[0104] Among the first and second liquid lower channels 1 and 3, only the wall surface of the first liquid lower channel 1 is provided with a plurality of capillary grooves 25, so as to utilize the structure of the capillary grooves 25 to destroy the surface tension of the liquid flowing through the first liquid lower channel 1, and at the same time utilize the capillary force of the capillary grooves 25 to absorb and guide the liquid in the liquid storage tank 12, so that the liquid is accelerated to flow in the direction of the liquid suction channel 2; while the capillary grooves 25 are not formed in the second liquid lower channel 3, and in a specific embodiment, the wall surface of the second liquid lower channel 3 is a smooth wall surface to facilitate the bubbles to rise to the liquid storage tank 12.

[0105] Specifically, the channel structure dimensions of the first lower liquid channel 1 and the second lower liquid channel 3 are the same, but among the first lower liquid channel 1 and the second lower liquid channel 3, only the wall surface of the first lower liquid channel 1 is provided with a plurality of capillary grooves 25. The capillary grooves 25 can be specifically formed by a plurality of liquid-guiding walls 26 protruding from the inner surface of the first lower liquid channel 1 and arranged at intervals, and the plurality of liquid-guiding walls 26 are arranged along the extension direction of the first lower liquid channel 1.

[0106] The downward force of the liquid in the first downward liquid channel 1 mainly comes from the gravity of the liquid itself and the capillary force of the capillary groove 25; while the downward force of the liquid in the second downward liquid channel 3 mainly comes from the gravity of the liquid itself. Compared with the first downward liquid channel 1, the downward force of the liquid in the second downward liquid channel 3 is smaller, so the preset flow rate of the liquid flowing through the first downward liquid channel 1 is greater than the preset flow rate of the liquid flowing through the second downward liquid channel 3. Therefore, when liquid is introduced into the first lower liquid channel 1, the liquid suction channel 2 and the second lower liquid channel 3, the liquid in the liquid storage tank 12 preferentially enters the first lower liquid channel 1 with a preset fast flow rate, and squeezes the gas in the first lower liquid channel 1, the liquid suction channel 2 and the second lower liquid channel 3 into the liquid storage tank 12 from the end of the second lower liquid channel 3 connected to the liquid storage tank 12, and the liquid fills the first lower liquid channel 1, the liquid suction channel 2 and the second lower liquid channel 3 in turn. Because the liquid starts to be filled from one end of the liquid suction channel 2, the gas in the liquid suction channel 2 is subjected to a greater pressure on the liquid inlet side, and thus the gas in the liquid suction channel 2 can be discharged from the other end, so that it is difficult for bubbles to exist in the liquid suction channel 2 during the filling process.

[0107] For further explanation, assuming that the preset flow rates of the first lower liquid channel 1 and the second lower liquid channel 3 are the same, and liquid is introduced into the first lower liquid channel 1 and the second lower liquid channel 3 at the same time, the simultaneous introduction of liquid into both ends of the liquid suction channel 2 will make it difficult for some gas in the liquid suction channel 2 to be discharged and remain in the liquid suction channel 2. Therefore, during the atomization liquid feeding process, the liquid feeding area of the atomizer core 30 will be reduced, the liquid feeding rate will be reduced, and insufficient liquid supply to the atomizer core 30 will be easily caused.

[0108] Therefore, the present application sets a preset flow rate from the first lower liquid channel 1 to the liquid suction channel 2 that is greater than the preset flow rate from the second lower liquid channel 3 to the liquid suction channel 2, so that the liquid inlet rates at both ends of the liquid suction channel 2 are different. Therefore, during the filling process, liquid is taken in at one end of the liquid suction channel 2 and exhausted at the other end, so that the gas in the liquid suction channel 2 is difficult to adhere to and stay in the liquid suction channel 2, thereby avoiding the presence of bubbles in the liquid suction channel 2 and causing insufficient liquid supply to the liquid suction surface 32.

[0109] See Figure 12 The flow rate adjustment structure 80 can also be a flow rate slowing structure 84. The flow rate slowing structure 84 is arranged in the second lower liquid channel 3 to relatively reduce the preset flow rate of 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 2.

[0110] The flow rate slowing structure 84 can be a deceleration net structure arranged in the second lower liquid channel 3. The deceleration net structure can be provided with one layer, two layers or three layers along the extension direction of the second lower liquid channel 3. The deceleration net structure is provided with fine mesh holes to reduce the speed of liquid filling through the fine mesh structure, and can also exhaust.

[0111] The flow rate slowing structure 84 can also be a deflection structure arranged at the liquid inlet of the second lower liquid channel 3, so that the liquid inlet direction of its liquid inlet is different from the extension direction of the second lower liquid channel 3, thereby slowing down the filling rate, 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 2.

[0112] Specifically, the flow rate slowing structure 84 is disposed on the atomizing seat 20 .

[0113] See Figure 13 The flow rate adjustment structure 80 may be a flow guide structure 86 with inconsistent flow rates in both directions. The flow guide structure 86 is provided at least one of the liquid suction channel 2, the first liquid lower channel 1, and the second liquid lower channel 3. In other words, the forward flow rate and the reverse flow rate of the flow guide structure 86 are different, and the forward flow rate of the flow guide structure 86 is greater than its reverse flow rate.

[0114] The guide structure 86 can be set in the forward direction on the first lower liquid channel 1 and / or the liquid suction channel 2, so that when filling, the liquid flows along the direction from the first lower liquid channel 1 to the liquid suction channel 2, that is, the liquid flows along the forward direction of the guide structure 86; the guide structure 86 can be set in the reverse direction on the second lower liquid channel 3, and when the liquid flows along the direction from the second lower liquid channel 3 to the liquid suction channel 2, the liquid flows in the reverse direction of the guide structure 86; or, the above two settings of the guide structure 86 are combined, so that the preset flow rate from the first lower liquid channel 1 to the liquid suction channel 2 can be greater than the preset flow rate from the second lower liquid channel 3 to the liquid suction channel 2.

[0115] Specifically, the flow-guiding structure 86 can be provided on at least one of the atomizer seat 20 , the atomizer core 30 and the sealing member 40 , and at least one of the atomizer seat 20 , the atomizer core 30 and the sealing member 40 provided with the flow-guiding structure 86 also cooperates with the liquid suction surface 32 of the atomizer core 30 to form the liquid suction channel 2 .

[0116] See Figure 14 , Figure 14 yes Figure 4 Another schematic diagram of the axial structure of the seal in the atomizer is shown.

[0117] In this embodiment, the guide structure 86 is a fishbone groove structure 44 provided on the sealing member 40. The sealing member 40 cooperates with the liquid suction surface 32 of the atomizer core 30 to form the liquid suction channel 2. That is, the liquid suction surface 32 covers the fishbone groove structure 44 to form the liquid suction channel 2.

[0118] Optionally, see Figure 15 The guide structure 86 can also include a plurality of speed change blocks 860 arranged at intervals. The speed change blocks 860 are arranged on both side walls of the liquid suction channel 2, and the plurality of speed change blocks 860 on each side are arranged at intervals. The speed change blocks 860 include a guide slope 861 and a blocking surface 862. The guide slope 861 and the blocking surface 862 are arranged at an acute angle. The blocking surface 862 is perpendicular to the side wall of the liquid suction channel 2. The liquid first flows through the guide slope 861 and then through the blocking surface 862, which is a forward flow rate. The liquid first flows through the blocking surface 862 and then through the guide slope 861, which is a reverse flow rate. Because the resistance of the blocking surface 862 to the liquid is greater than the resistance of the guide slope 861 to the liquid, it can form the current phenomenon of inconsistent bidirectional flow rates in the liquid suction channel 2.

[0119] The fishbone groove structure 44 and the speed change block 860 may also be disposed on the atomizer seat 20 or the atomizer core 30 .

[0120] In this embodiment, the first end of the fishbone trough structure 44 is connected to the first lower liquid channel 1, and the second end of the fishbone trough structure 44 is connected to the second lower liquid channel 3; wherein, the liquid has a forward flow rate along the first end of the fishbone trough structure 44 to its second end, and a reverse flow rate along the second end of the fishbone trough structure 44 to its first end, and the forward flow rate is greater than the reverse flow rate.

[0121] like Figure 16 As shown, Figure 16 yes Figure 14The seal is shown in a top view. The fishbone groove structure 44 comprises a main groove section 440 and a plurality of branch groove sections 442 disposed on at least one side of the main groove section 440. The first end of the main groove section 440 communicates with the first lower liquid channel 1, and the second end of the main groove section 440 communicates with the second lower liquid channel 3. The main groove section 440 is a capillary groove, and the angle a between the extension direction of the branch groove sections 442 and the extension direction of the main groove section 440 is acute.

[0122] One end of the branch slot segment 442 is connected to the main slot segment 440, and the other end is closed. Several branch slot segments 442 can be arranged on one or both sides of the main slot segment 440. The several branch slot segments 442 arranged on both sides of the main slot segment 440 can be symmetrically distributed or staggered. The acute angles formed between the extension direction of each branch slot segment 442 and the extension direction of the main slot segment 440 can be the same or different, for example, the acute angles can gradually increase or decrease.

[0123] The main slot segment 440 extends in a direction from its first end to its second end, and the branch slot segment 442 extends in a direction from its end connected to the main slot segment 440 as a starting position to its closed end.

[0124] In this embodiment, the main slot section 440 and the branch slot section 442 are both slots of uniform width, and the angle a between the extension direction of the branch slot section 442 and the extension direction of the main slot section 440 is the angle a between the midline of the branch slot section 442 and the midline of the main slot section 440.

[0125] Optionally, the branch slot segment 442 is a special-shaped slot segment, and its extension direction may also be the extension direction of the median line from the open end to the closed end.

[0126] The main groove section 440 is a capillary groove. When the liquid flows from the first end of the fishbone groove structure 44 to its second end, since the angle a between the extension direction of the branch groove section 442 and the extension direction of the main groove section 440 is an acute angle, at the junction of the walls of the main groove section 440 and the branch groove section 442, the wetting direction of the liquid from the wall of the main groove section 440 to the wall of the branch groove section 442 is the same as the flow direction of the liquid in the main groove section 440. The liquid can smoothly flow along the wall to fill the branch groove section 442 and continue to flow to the second end of the fishbone groove structure 44.

[0127] When the liquid flows from the second end to the first end of the fishbone trough structure 44, at the junction of the walls of the main trough section 440 and the branch trough section 442, the wetting direction of the liquid from the wall of the main trough section 440 to the wall of the branch trough section 442 is opposite to the flow direction of the liquid in the main trough section 440, which increases the wetting difficulty of the liquid when entering the branch trough section 442 from the main trough section 440, causing a stagnation in the flow of the liquid and slowing down the flow speed of the liquid.

[0128] Therefore, the forward flow velocity of the fishbone trough structure 44 is greater than the reverse flow velocity of the fishbone trough structure 44, that is, there is a difference in the liquid inlet rate at both ends of the liquid suction channel 2 itself. When filling with liquid, the liquid inlet rate at the first end of the fishbone trough structure 44 is fast, thereby squeezing the gas in the liquid suction channel 2 out from its second end. The gas in the liquid suction channel 2 will gradually be discharged during the liquid filling process.

[0129] Furthermore, the branch slot section 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 section 440, the first wall 443 is close to the first end of the main slot section 440 relative to the second wall 445, and the angle b formed between the first wall 443 and the side wall of the main slot section 440 connected thereto is greater than 90°, and the angle c formed between the second wall 445 and the side wall of the main slot section 440 connected thereto is less than 90°.

[0130] Since the main trunk groove section 440 is a capillary groove, the main trunk groove section 440 has a capillary effect on the liquid, and the angle b formed between the first wall surface 443 and the side wall surface of the main trunk groove section 440 connected thereto is greater than 90 degrees, so the liquid flowing from the first end to the second end of the fishbone groove structure 44 constitutes a non-wetting liquid when passing through the junction of the main trunk groove section 440 and the first wall surface 443, so that the liquid can smoothly expand and infiltrate the first wall surface 443, fill the branch groove section 442 along the first wall surface 443, and continue to flow toward the second end of the fishbone groove structure 44; the second wall surface 44 5 and the side wall surface of the main groove section 440 connected thereto are less than 90°. Therefore, when the liquid flowing from the second end of the fishbone groove structure 44 to the first end thereof passes through the junction of the main groove section 440 and the second wall surface 445, the liquid constitutes an infiltration liquid, which can increase its ability to be adsorbed on the wall surface and increase the difficulty of the liquid expanding and infiltrating the second wall surface 445, thereby slowing down the flow of the liquid, so that the speed of the liquid flowing through the fishbone groove structure 44 in different directions is different. Then, when the liquid suction channel 2 is filled with liquid, the first end with a faster liquid inlet is filled with liquid, and the second end with a slower liquid inlet is exhausted.

[0131] Furthermore, the branch groove section 442 is a capillary groove, so that the capillary force exerted on the liquid in the branch groove section 442 is increased, thereby facilitating the flow and filling of the liquid.

[0132] The main groove section 440 is a capillary groove, which is conducive to transporting the liquid to the atomizing surface 34, thereby reducing the amount of liquid residual in the fishbone groove structure 44. The branch groove section 442 is a capillary groove, which can further increase the rate and range of liquid transport to the atomizing surface 34, making the atomizing surface 34 more fully irrigated and reducing the amount of liquid residual in the fishbone groove structure 44.

[0133] The branch groove section 442 may also be a non-capillary groove, so that the branch groove section 442 can store more liquid.

[0134] like Figure 17 As shown, Figure 17 yes Figure 4 Another schematic top view of the seal in the atomizer is shown. The fishbone trough structure 44 also includes a liquid collecting trough section 446. The main trough section 440 is connected to the liquid collecting trough section 446 and passes through the liquid collecting trough section 446. That is, the liquid collecting trough section 446 is located in the middle of the extension path of the main trough section 440. The width dimension A of the liquid collecting trough section 446 along its extension direction is greater than the width dimension B of the main trough section 440. The liquid collecting trough section 446 is a non-capillary trough, and the width dimension A of the liquid collecting trough section 446 is less than or equal to the width dimension C of the fishbone trough structure 44 along its extension direction.

[0135] For example, the width dimension A of the liquid collecting trough section 446 is equal to the width dimension C of the fishbone trough structure 44 , thereby allowing the liquid collecting trough section 446 to have a relatively larger liquid storage space without affecting the forward and reverse flow rate difference characteristics of the fishbone trough structure 44 .

[0136] The number of fishbone trough structures 44 can be one or more, and the fishbone trough structure 44 spans the liquid absorption surface 32, wherein a plurality of fishbone trough structures 44 can be arranged side by side to occupy the area corresponding to the liquid absorption surface 32 as much as possible, so that the liquid absorption rate of the liquid absorption surface 32 is higher and the liquid supply is more uniform, and the guide wall 43 between adjacent fishbone trough structures 44 can also be a porous matrix such as liquid absorbent cotton, porous glass or porous ceramics to further improve the liquid absorption rate and liquid supply uniformity.

[0137] See also Figure 10 、 Figure 12 and Figure 18 , Figure 18 yes Figure 4 Another axial side structural diagram of the sealing member in the atomizer is shown. When the flow rate adjustment structure 80 is provided in the first lower liquid channel 1 and / or the second lower liquid channel 3 , the sealing member 40 cooperates with the atomizing core 30 to form the liquid suction channel 2 .

[0138] Specifically, a liquid guide groove 42 is provided on the side of the sealing member 40 facing the liquid suction surface 32. The liquid guide groove 42 spans the liquid suction surface 32. The two ends of the liquid guide groove 42 are respectively connected to the first lower liquid channel 1 and the second lower liquid channel 3. The sealing member 40 cooperates with the atomizing core 30 so that the liquid suction surface 32 covers the liquid guide groove 42 to form the liquid suction channel 2.

[0139] Optionally, the liquid guiding groove 42 may also be provided on the liquid suction surface 32 , and the sealing member 40 covers the liquid guiding groove 42 to form the liquid suction channel 2 .

[0140] like Figure 18As shown, the liquid guide groove 42 can be a large-sized straight groove, that is, no other structural parts are provided inside the groove, and the area of the straight groove is as close as possible to the area of the liquid absorption surface 32. The straight groove can have a deeper depth so that it has no capillary effect, or the straight groove can have a shallower depth so that it has a capillary effect when cooperating with the liquid absorption surface 32, so as to facilitate the transportation of liquid at the bottom of the groove to the liquid absorption surface 32.

[0141] Further, see Figure 19 , Figure 19 yes Figure 4 A schematic diagram of another axial structure of the sealing element in the atomizer is shown.

[0142] At least one guide wall 43 is provided on the bottom wall of the liquid guide groove 42, which divides the liquid guide groove 42 into at least two capillary grooves 420. The capillary force of the capillary grooves 420 on the liquid can accelerate the flow rate of the liquid through the liquid guide groove 42, and is also conducive to transporting the residual liquid at the bottom of the capillary grooves 420 to the liquid absorption surface 32, thereby reducing the residual amount.

[0143] like Figure 19 As shown, two guide walls 43 are provided on the bottom wall of the liquid guiding groove 42, and the two guide walls 43 divide the liquid guiding groove 42 into three parallel capillary grooves 420. The number of the guide walls 43 can also be three or four, which will not be described in detail.

[0144] Furthermore, the width dimension of the capillary groove 420 along its extension direction is smaller than its depth dimension. There are multiple capillary grooves 420 and they are arranged side by side along their width direction to increase the liquid capacity of the liquid guide groove 42 in the depth direction, and multiple capillary grooves 420 arranged side by side can supply liquid to the liquid absorption surface 32 more evenly.

[0145] The capillary groove 420 spans the liquid absorption surface 32 of the atomizer core 30. When the liquid is filled, the liquid is subjected to a large capillary force in the capillary groove 420, which helps the liquid to fill the liquid guide groove 42 and the liquid to flow. Furthermore, the capillary action of the liquid guide groove 42 helps to reduce the residual liquid in the liquid guide groove 42 and improve the utilization rate of the liquid.

[0146] To further illustrate the amount of residual in the two liquid-conducting grooves 42, a graph 20 drawn after experimental verification is provided. Figure 20As shown, in the embodiment where the liquid-conducting groove 42 is divided into capillary grooves 420, the amount of liquid remaining in the liquid-conducting groove 42 is less than 5 mg; in the embodiment where the liquid-conducting groove 42 is a straight groove, the amount of liquid remaining in the liquid-conducting groove 42 is approximately 20 mg. It can be seen that by dividing the liquid-conducting groove 42 into multiple capillary grooves 420, the amount of residual liquid in the groove can be significantly reduced, thereby improving the utilization rate of the high-liquid. The flow of liquid in the liquid-conducting groove 42 is affected by the combined effects of capillary force and flow resistance. Providing the liquid-conducting groove 42 with multiple capillary grooves 420 instead of a straight groove increases the capillary force in the liquid-conducting groove 42, thereby facilitating the flow and filling of the liquid. It also facilitates the upward movement of liquid at the bottom of the liquid-conducting groove 42 due to capillary action and is absorbed by the liquid absorbing surface 32, thereby reducing the amount of residual liquid in the liquid-conducting groove 42.

[0147] Furthermore, the guide wall 43 between two adjacent capillary grooves 420 is a porous matrix, which can be liquid-absorbing cotton, porous glass, or porous ceramics. The liquid absorbing surface 32 is sealed on the liquid-guiding groove 42 and contacts the guide wall 43. The guide wall 43 is used to transfer liquid in the liquid-guiding groove 42 to the liquid absorbing surface 32, thereby allowing the portion of the liquid absorbing surface 32 that was originally covered and unable to absorb liquid to absorb liquid to also absorb liquid, thereby increasing the area of the liquid absorbing surface 32 that can absorb liquid, and providing a faster and more sufficient liquid supply rate to the atomizer core 30.

[0148] Alternatively, a communication port (not shown) is provided on the guide wall 43 between two adjacent capillary grooves 420 , which connects the two adjacent capillary grooves 420 so that the amount of liquid in each capillary groove 420 remains the same at all times, which helps to maintain a more uniform liquid supply to the liquid absorption surface 32 .

[0149] Further, see Figure 21 , Figure 21 yes Figure 4 Another schematic diagram of the top view of the seal in the atomizer shown. The capillary groove 420 includes a connected capillary portion 421 and a liquid storage portion 422, wherein the number of capillary portions 421 and liquid storage portions 422 is not limited. The liquid storage portion 422 stores more liquid than the capillary portion 421. The capillary portion 421 has a capillary effect on the liquid, and is used to accelerate the flow and filling of the liquid and reduce the residual liquid in the liquid guide groove 42. The liquid storage portion 422 does not have a capillary effect on the liquid and is used to increase the liquid storage capacity in the liquid aspiration channel 2 and increase the available liquid aspiration area of the liquid aspiration surface 32. The capillary portion 421 or the liquid storage portion 422 is connected to the corresponding first lower liquid channel 1 or second lower liquid channel 3.

[0150] For example, the liquid conducting groove 42 includes a plurality of capillaries 421 and a plurality of liquid storage portions 422 arranged in an array, and adjacent capillaries 421 and liquid storage portions 422 are connected to each other; or the liquid conducting groove 42 includes a plurality of capillaries 421 and a plurality of liquid storage portions 422 arranged in a straight line, and the capillaries 421 and the liquid storage portions 422 are connected in sequence.

[0151] By setting the preset flow rate of liquid from the first lower liquid channel to the liquid suction channel to be greater than the preset flow rate of liquid from the second lower liquid channel to the liquid suction channel, when filling the liquid, the liquid in the liquid storage tank always enters the liquid suction channel at the end with a faster preset flow rate, and the gas in the liquid suction channel is squeezed by the liquid flow at one end and gradually discharged from the other end of the liquid suction channel, making it difficult for the gas to accumulate in the liquid suction channel, avoiding the presence of bubbles in the liquid suction channel and affecting the liquid supply to the liquid suction surface, which can solve the problems of reduced aerosol generation efficiency in the atomizer and easy generation of burnt smell affecting taste, thereby effectively maintaining the high aerosol generation efficiency in the atomizer and low risk of generating burnt smell.

[0152] The above description is merely an embodiment of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. An atomizer, characterized in that: The atomizer comprises: A liquid storage tank, used for storing liquid; Exhaust pipe; An atomizer seat is provided with an atomizing chamber and a first lower liquid channel and a second lower liquid channel, wherein the first lower liquid channel and the second lower liquid channel are respectively connected to the liquid storage tank; the atomizing chamber is directly connected to the air outlet pipe; an atomizer core has a liquid suction surface and an atomizing surface; the atomizing surface is arranged toward the air outlet pipe, and the liquid suction surface and the atomizing surface are opposite; the liquid storage tank, the air outlet pipe, and the atomizing chamber are located on the same side of the atomizer core; a sealing member disposed on a side of the atomizer core away from the air outlet pipe and covering the liquid suction surface; the sealing member cooperates with the atomizer core to form a liquid suction channel, the liquid suction surface being at least a portion of an inner wall surface of the liquid suction channel; the first liquid lowering channel, the liquid suction channel, and the second liquid lowering channel are sequentially connected; Among them, when the liquid in the liquid storage tank gradually fills the liquid suction channel, the preset flow rate of the liquid from the first lower liquid channel to the liquid suction channel is greater than the preset flow rate of the liquid from the second lower liquid channel to the liquid suction channel, so that the bubbles discharged when the liquid fills the liquid suction channel are discharged to the liquid storage tank through the second lower liquid channel.

2. The atomizer according to claim 1, characterized in that The atomizer also includes a flow rate adjustment structure, which is arranged in at least one of the first lower liquid channel, the suction channel and the second lower liquid channel. The flow rate adjustment structure makes the preset flow rate from the first lower liquid channel to the suction channel greater than the preset flow rate from the second lower liquid channel to the suction channel.

3. The atomizer according to claim 2, characterized in that The flow rate adjustment structure is a flow rate acceleration structure, and the flow rate acceleration structure is arranged in the first liquid lowering channel and / or the liquid suction channel.

4. The atomizer according to claim 3, characterized in that The flow rate accelerating structure is a capillary groove structure extending from the first liquid lowering channel to the liquid suction channel.

5. The atomizer according to claim 2, characterized in that The flow rate adjustment structure is a flow rate slowing structure, and the flow rate slowing structure is arranged in the second lower liquid channel.

6. The atomizer according to claim 2, characterized in that The flow rate adjustment structure is a flow guide structure with inconsistent bidirectional flow rates, and the flow guide structure is provided at least in one of the liquid suction channel, the first liquid lower channel, and the second liquid lower channel.

7. The atomizer according to claim 6, characterized in that The guide structure is a fishbone trough structure, which includes a main guide section and several branch guide sections arranged on at least one side of the main guide section. The main guide section is a capillary channel, and the angle between the extension direction of the branch guide section and the extension direction from the first end to the second end of the main guide section is an acute angle.

8. The atomizer according to claim 7, characterized in that The branch guide section includes a first wall surface and a second wall surface spaced apart from each other, and the first wall surface and the second wall surface are connected to the side wall surface of the main guide section. The first wall surface is closer to the first end of the main guide section relative to the second wall surface. The angle formed between the first wall surface and the side wall surface of the main guide section connected thereto is greater than 90°, and the angle formed between the second wall surface and the side wall surface of the main guide section connected thereto is less than 90°.

9. The atomizer according to claim 7 or 8, characterized in that: The branch diversion section is a capillary blind channel.

10. The atomizer according to claim 7, characterized in that The fishbone trough structure further includes a liquid gathering section, the main guide section is connected to the liquid gathering section and passes through the liquid gathering section, wherein the width of the liquid gathering section along its extension direction is greater than the width of the main guide section.

11. The atomizer according to claim 1, characterized in that The first lower liquid channel is a capillary channel, and a characteristic dimension of a cross section of the first lower liquid channel along its extending direction is smaller than a characteristic dimension of a cross section of the second lower liquid channel along its extending direction; Wherein, the cross section of the lower liquid channel is circular, and the characteristic dimension is a radial dimension; Alternatively, the cross section of the lower liquid channel is rectangular, and the characteristic dimension is the width dimension; Alternatively, the cross section of the lower liquid channel is elliptical, and the characteristic dimension is the minor axis dimension.

12. The atomizer according to claim 11, characterized in that The characteristic dimensions of the first lower liquid channel and the characteristic dimensions of the second lower liquid channel are both in the range of 0.4 mm to 7.0 mm.

13. The atomizer according to claim 1, characterized in that A liquid guiding groove is provided on one side of the sealing member facing the liquid absorbing surface. The liquid guiding groove spans the liquid absorbing surface. The liquid absorbing surface cover is provided on the liquid guiding groove to form the liquid absorbing channel.

14. The atomizer according to claim 13, characterized in that The liquid-conducting groove is a straight groove; or At least one guide wall is provided on the bottom wall of the liquid-conducting groove, and the guide wall divides the liquid-conducting groove into at least two capillary grooves.

15. The atomizer according to claim 14, characterized in that The guide wall is a porous matrix; or A communication port is provided on the guide wall.

16. An electronic atomization device, characterized in that: The electronic atomization device comprises a power supply and the atomizer according to any one of claims 1 to 15, wherein the power supply is connected to the atomizer and supplies power to the atomizer.

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