Atomizer and electronic atomization device

Abstract

Disclosed in the embodiments of the present application are an atomizer and an electronic atomization device. The atomizer comprises a housing, an atomization assembly and a liquid guide member, wherein the housing is provided with a liquid storage cavity and a temporary storage cavity which are spaced apart from each other and are both used for storing an aerosol-generating matrix; an airflow channel is formed inside the atomization assembly; the atomization assembly comprises a liquid guide portion and a heating member connected to the liquid guide portion; the liquid guide portion is configured to introduce the aerosol-generating matrix, is arranged in the airflow channel, and is in communication with the liquid storage cavity and spaced apart from the temporary storage cavity; the liquid guide member is provided with a capillary channel and comes into contact with the liquid guide portion; and the aerosol-generating matrix flows between the liquid guide portion and the temporary storage cavity via the capillary channel.

Description

An atomizer and an electronic atomization device

[0001] Cross reference to related applications

[0002] The present application is based on and claims priority to Chinese Patent Application No. 202411104629.0, filed on August 12, 2024, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0003] The present application belongs to the technical field of atomization devices, and in particular relates to an atomizer and an electronic atomization device. BACKGROUND

[0004] An electronic atomization device is a device that generates aerosol for a user to use by heating and atomization. The electronic atomization device stores edible aerosol generating substrate in a liquid storage cavity in an atomizer, and heats and atomizes the aerosol generating substrate into edible aerosol by an atomization assembly. In the related art, the atomization assembly inputs the aerosol generating substrate in the liquid storage cavity through a liquid guide portion, and guides the aerosol out through an airflow passage.

[0005] However, the liquid guide portion has a small volume and limited liquid locking capacity, but the flow of the aerosol generating substrate input by the liquid guide portion is not constant. For example, as the user uses it, the temperature in the liquid storage cavity rises due to heating of the atomization assembly, resulting in a large pressure, and the liquid storage cavity is prone to supplying more aerosol generating substrate to the liquid guide portion. When the liquid guide portion is not sufficient to absorb all the input aerosol generating substrate, the excess aerosol generating substrate forms a liquid leakage, affecting the user's experience. SUMMARY

[0006] To solve the problems in the related art, the present application provides an atomizer and an electronic atomization device to solve the technical problem of how to reduce the possibility of liquid leakage of the atomization assembly.

[0007] The present application provides an atomizer, which includes a housing provided with a spaced liquid storage cavity and a temporary storage cavity, both of which are used to store aerosol generating substrate; an atomization assembly, which forms an airflow passage inside; the atomization assembly includes a liquid guide portion and a heating element connected to the liquid guide portion, the liquid guide portion is used to input the aerosol generating substrate and is arranged in the airflow passage, the liquid guide portion is in communication with the liquid storage cavity and is spaced from the temporary storage cavity; a liquid guide body is provided with a capillary passage, the liquid guide body is in contact with the liquid guide portion, and the aerosol generating substrate flows between the liquid guide portion and the temporary storage cavity through the capillary passage.

[0008] In the atomizer provided by the embodiments of the present application, the aerosol generating substrate reciprocates between the liquid guide portion and the temporary storage cavity via the capillary channel. In the case that the temperature of the liquid storage cavity is increased and has high pressure, the liquid storage cavity supplies excessive aerosol generating substrate to the liquid guide portion, and part of the aerosol generating substrate is extruded from the liquid guide portion to form a leakage. The leakage can be guided into the temporary storage cavity via the capillary channel and stored, which reduces the possibility that the leakage accumulates at the liquid guide portion to form a liquid column, and further generates noise when the user obtains the aerosol. In addition, the leakage is also reduced to leak into the airflow channel and then flow out of the atomizer via the airflow channel, so that the atomizer has a smaller possibility of leakage. As the aerosol generating substrate on the liquid guide portion is consumed, the liquid guide portion can absorb the leakage in the temporary storage cavity, and the leakage can be atomized into aerosol at the liquid guide portion, thereby improving the utilization rate of the atomizer for the aerosol generating substrate.

[0009] The embodiments of the present application also provide an electronic atomization device, wherein the electronic atomization device comprises the atomizer described above, and the electronic atomization device further comprises a power supply configured to supply power to the atomizer.

[0010] The electronic atomization device provided by the embodiments of the present application comprises the atomizer described above, and thus has the same technical effects. That is, the electronic atomization device provided by the embodiments of the present application has a smaller possibility of leakage, a higher utilization rate of the aerosol generating substrate, and a smaller noise when the aerosol is obtained.

[0011] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0013] FIG. 1 is a structural schematic diagram of an atomizer provided by the embodiments of the present application;

[0014] FIG. 2 is a top view of the atomizer provided by the embodiments of the present application;

[0015] FIG. 3 is a sectional view in the A-A direction of FIG. 2;

[0016] FIG. 4 is an exploded view of the atomizer provided by the embodiments of the present application;

[0017] FIG. 5 is a structural schematic diagram of a liquid guide provided by the embodiments of the present application;

[0018] FIG. 6 is an enlarged schematic diagram of B in FIG. 3;

[0019] Fig. 7 is a sectional view in the direction of C-C in Fig. 2;

[0020] Fig. 8 is an exploded view of the atomization assembly provided in the embodiments of the present application;

[0021] Fig. 9 is a structural schematic view of the electronic atomization device provided in the embodiments of the present application.

[0022] Legend: 10, atomizer; 1, shell; 11, liquid storage cavity; 12, temporary storage cavity; 13, outer shell; 131, air outlet; 132, opening; 14, base; 141, liquid collection groove; 142, mounting portion; 143, liquid storage portion; 1431, first end face; 1432, air inlet; 2, atomization assembly; 21, airflow channel; 22, liquid guide portion; 221, atomization cavity; 23, heating element; 24, atomization tube; 241, first atomization tube; 2411, first through hole; 242, second atomization tube; 2421, second through hole; 25, liquid suction element; 3, liquid guide body; 31, capillary channel; 32, central air channel; 33, first end; 34, second end; 35, drainage groove; 36, fin; 37, drainage section; 20, power supply. DETAILED DESCRIPTION

[0023] 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. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work are within the protection scope of the present application. In addition, the technical solutions in each embodiment can be combined with each other, but the combination should be based on the fact that a person of ordinary skill in the art can realize it, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope claimed by the present application.

[0024] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture, and if the certain posture changes, the directional indications will also change accordingly.

[0025] In addition, if the description of "first", "second" and the like is involved in the embodiments of the present application, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. In addition, the meaning of "and / or" appearing throughout the text is to include three parallel schemes. For example, "A and / or B" includes A scheme, or B scheme, or A and B scheme.

[0026] The embodiments of the present application provide an atomizer 10 and an electronic atomization device, the electronic atomization device comprising the atomizer 10, the atomizer 10 storing an aerosol generating substrate therein, and the atomizer 10 being configured to atomize the aerosol generating substrate into an aerosol, the aerosol generating substrate including but not limited to tobacco tar, chemical liquid, plant leaf juice, and the atomizer 10 being applicable to medical, cosmetic, electronic aerosolization and other scenarios. It should be noted that the application scenarios of the embodiments of the present application do not limit the structure of the atomizer 10 and the electronic atomization device of the embodiments of the present application.

[0027] As shown in FIGS. 1-4, the present application provides an atomizer 10, which comprises a shell 1, an atomization assembly 2 and a liquid guide 3, the shell 1 is provided with a spaced liquid storage cavity 11 and a temporary storage cavity 12, both of which are used to store an aerosol generating substrate, wherein when the atomizer 10 is just filled with the aerosol generating substrate, the aerosol generating substrate is preferentially stored in the liquid storage cavity 11. The atomization assembly 2 forms an airflow passage 21 inside, for the flow of aerosol. The atomization assembly 2 comprises a liquid guide part 22 arranged in the airflow passage 21, and a heating element 23 connected with the liquid guide part 22, the extension direction of the liquid guide part 22 is the same as that of the airflow passage 21, which can be simply understood as that the liquid guide part 22 is longitudinally placed relative to the airflow passage 21. The liquid guide part 22 communicates with the liquid storage cavity 11 to input the aerosol generating substrate in the liquid storage cavity 11, that is, the liquid guide part 22 itself has the functions of guiding and locking liquid.

[0028] Specifically, as shown in FIG. 3, the liquid guide 22 can generally be porous ceramic or oil storage cotton, which can be used to absorb and store the aerosol generating substrate; the liquid guide 22 can be a hollow component or a solid component with the function of absorbing and guiding liquid by itself. It can be understood that the heating element 23 can be heated to heat and atomize the aerosol generating substrate into aerosol; the heating element 23 can be a heating wire, a heating film or a mesh coil; the heating element 23 can be arranged outside the liquid guide 22, or arranged inside the liquid guide 22 when the liquid guide 22 is hollow; the specific position of the liquid guide 22 and the heating element 23 is not limited in the present application, as long as the heating element 23 is connected to the liquid guide 22. When current passes through the heating element 23, the heating element 23 will generate heat based on the principle of electrical effect; the heat will be transferred to the liquid guide 22, so that the liquid guide 22 is heated to atomize the aerosol generating substrate in the liquid guide 22 into aerosol based on the principle of thermal effect. In the embodiment shown in the schematic diagram of the present application, the liquid guide 22 is hollow, the inner wall of the liquid guide 22 surrounds an atomization cavity 221 which communicates with the airflow channel 21, and the heating element 23 is arranged in the atomization cavity 221, the aerosol is generated in the atomization cavity 221 and diffused into the airflow channel 21.

[0029] As known from the background, based on the gas state equation, under the same conditions, temperature and pressure are positively correlated. When the electronic atomization device enters a high-temperature environment from a low-temperature environment, or after the heating element continues to heat, the temperature of the liquid storage cavity increases, and the gas in the liquid storage cavity expands to press the aerosol generating substrate through the liquid guide. The liquid guide is limited by its own volume and has limited liquid locking capacity. When the liquid guide is not enough to absorb all the aerosol generating substrate squeezed out from the liquid storage cavity, the liquid guide will seep out part of the aerosol generating substrate, forming liquid leakage. The liquid leakage is easy to accumulate in the liquid guide to form a liquid column, and then produce liquid leakage when the user obtains the aerosol; the liquid leakage is also easy to leak into the airflow channel, and then flow out of the atomizer, affecting the taste and use experience of the user obtaining the aerosol.

[0030] As shown in FIG. 3, in the embodiment of the present application, the liquid guide 22 is spaced from the temporary storage cavity 12, so that when the pressure of the liquid guide 22 and the liquid storage cavity 11 is balanced, the aerosol generating substrate preferentially flows to the liquid guide 22. The liquid guide 3 is provided with a capillary channel 31 (refer to FIG. 5), the liquid guide 3 is in contact with the liquid guide 22, and the liquid guide 3 guides the aerosol generating substrate to move between the liquid guide 22 and the temporary storage cavity 12 through the capillary channel 31. When the liquid storage cavity 11 is in a high-pressure state and supplies excessive aerosol generating substrate to the liquid guide 22, the liquid leakage squeezed out from the liquid guide 22 can be guided into the temporary storage cavity 12 for storage through the capillary channel 31, reducing the possibility of liquid leakage accumulating in the liquid guide 22 to form a liquid column, and reducing the possibility of liquid leakage flowing into the airflow channel 21, thereby reducing the possibility of the atomizer 10 appearing to suck liquid leakage.

[0031] It can be understood that the aerosol generating substrate generates capillary action at the liquid guide portion 22 and the liquid guide body 3, respectively. Capillary action, also known as capillarity, refers to the phenomenon that a liquid rises or falls in a tubular object due to the difference between cohesive force and adhesive force. It can be simply understood that the micro-holes in the liquid guide portion 22 and the capillary channels 31 in the liquid guide body 3 can both generate attractive force to make the aerosol generating substrate flow.

[0032] As shown in FIG. 3, in order to facilitate understanding of the flow process of the aerosol generating substrate between the liquid guide portion 22 and the temporary storage cavity 12, it is assumed that the atomizer 10 is in a set scenario. The set scenario sets the pressure in the liquid storage cavity 11 to be continuously in a high-pressure state, that is, the liquid storage cavity 11 continuously supplies excessive aerosol generating substrate to the liquid guide portion 22. At this time, the micro-holes on the liquid guide portion 22 are all not idle, so the liquid guide portion 22 continuously extrudes the leaked liquid, and the extruded leaked liquid flows to the temporary storage cavity 12 under the attractive force of the capillary channels 31. When the user inhales the aerosol, the aerosol generating substrate on the liquid guide portion 22 is consumed with the use of the user, and part of the micro-holes on the liquid guide portion 22 switch to idle, and the leaked liquid in the temporary storage cavity 12 reflows into the liquid guide portion 22 through the capillary channels 31. That is, in the set scenario and when the user uses the atomizer 10 to obtain the aerosol, the aerosol generating substrate can reciprocate between the liquid storage cavity 11 and the temporary storage cavity 12 through the capillary channels 31, and the temporary storage cavity 12 dynamically stores the liquid. It can be understood that in a normal use scenario, the arrangement of the capillary channels 31 can balance the pressure between the liquid storage cavity 11 and the liquid guide portion 22, and as the aerosol generating substrate is used, the possibility of the pressure in the liquid storage cavity 11 being continuously high is smaller, so in a general scenario, the volume of the leaked liquid is smaller than the volume of the temporary storage cavity 12.

[0033] The atomizer 10 provided by the embodiment of the present application comprises a shell 1, an atomization assembly 2 and a liquid guide 3. The shell 1 is provided with a spaced liquid storage cavity 11 and a temporary storage cavity 12, and the liquid storage cavity 11 and the temporary storage cavity 12 are both used for storing aerosol generating substrate. The atomization assembly 2 is internally formed with an airflow channel 21 for the flow of aerosol and external atmosphere, and the atomization assembly 2 comprises a liquid guide part 22 for absorbing the aerosol generating substrate, and a heating element 23 connected with the liquid guide part 22, and the liquid guide part 22 is coaxially arranged in the airflow channel 21. The liquid guide part 22 is in communication with the liquid storage cavity 11 and is spaced from the temporary storage cavity 12, and the liquid guide part 22 can input the aerosol generating substrate flowing out of the liquid storage cavity 11, and when the pressure of the liquid guide part 22 and the liquid storage cavity 11 is balanced, the aerosol generating substrate will not flow to the temporary storage cavity 12 spaced from the liquid guide part 22. The liquid guide 3 is provided with a capillary channel 31, and the liquid guide 3 is in contact with the liquid guide part 22, and the aerosol generating substrate reciprocates between the liquid guide part 22 and the temporary storage cavity 12 through the capillary channel 31. When the temperature of the liquid storage cavity 11 is increased to have high pressure, the liquid storage cavity 11 supplies excessive aerosol generating substrate to the liquid guide part 22, and the liquid locking capacity of the liquid guide part 22 is limited, and the liquid guide part 22 is not sufficient to absorb all the aerosol generating substrate flowing out of the liquid storage cavity 11, and part of the aerosol generating substrate is squeezed out of the liquid guide part 22 to form liquid leakage. The liquid leakage can be guided into the temporary storage cavity 12 for storage through the capillary channel 31, which reduces the possibility that the liquid leakage accumulates at the liquid guide part 22 to form a liquid column, and further reduces the possibility that the liquid leakage leaks into the airflow channel 21 and then flows out of the atomizer 10 through the airflow channel 21, so that the atomizer 10 has a smaller possibility of liquid leakage. As the aerosol generating substrate on the liquid guide part 22 is consumed, the liquid guide part 22 can absorb the liquid leakage in the temporary storage cavity 12, and the liquid leakage can be atomized into aerosol at the liquid guide part 22, thereby improving the utilization rate of the atomizer 10 for the aerosol generating substrate.

[0034] In some embodiments, as shown in FIG. 3, the flow passage cross-sectional area of the liquid guide part 22 for inputting the aerosol generating substrate is smaller than the flow passage cross-sectional area of the capillary channel 31, for example, the liquid guide part 22 can be provided with a groove-shaped channel arranged along the extension direction of the liquid guide part 22, and the flow passage cross-sectional area of the groove-shaped channel is smaller than the flow passage cross-sectional area of the capillary channel 31; or the liquid guide part 22 can be provided with a helical channel spirally arranged in the circumferential direction, and the cross-sectional area of the helical channel is smaller than the flow passage cross-sectional area of the capillary channel 31.

[0035] Specifically, the pore size of the micro-holes in the liquid guide portion 22 can be smaller than the flow passage cross-sectional area of the capillary channel 31. Based on the height formula of liquid rising or falling in capillary phenomenon, the height of liquid rising or falling is negatively correlated with the pipe diameter of the component inserted into the liquid, which can be simply understood as that the liquid generates a greater capillary effect at the component with a smaller pipe diameter. That is, the capillary force generated by the aerosol generating substrate at the micro-holes of the liquid guide portion is greater than the capillary force generated in the capillary channel, which can be simply understood as that the attraction of the liquid guide portion 22 to the aerosol generating substrate is greater than the attraction of the capillary channel 31 to the aerosol generating substrate.

[0036] Specifically, as shown in FIG. 3, since the liquid guide portion 22 itself can lock the liquid, the liquid guide portion 22 can be made of a porous material, that is, the pore size of the micro-holes in the liquid guide portion 22 is microns, and the average pore size of the micro-holes can be in the range of 20 μm to 55 μm, for example, the specific value of the pore size can be 20 μm, 30 μm, 45 μm or 55 μm, or any other value within the above range. It should be noted that although the aerosol generating substrate can generate capillary phenomenon at the liquid guide portion 22 and the liquid guide body 3, the liquid guide portion 22 is different from the liquid guide body 3. The liquid guide portion 22 makes the aerosol generating substrate generate capillary phenomenon through the micro-holes of the material itself, while the liquid guide body 3 makes the aerosol generating substrate generate capillary phenomenon through the additional capillary channel 31. As the aerosol generating substrate on the liquid guide portion 22 is consumed, the liquid guide portion 22 can absorb the leaked liquid in the temporary storage cavity 12. The leaked liquid leaked into the temporary storage cavity 12 can flow into the liquid guide portion 22 again through the capillary channel 31 and be atomized into aerosol at the liquid guide portion 22, and the utilization rate of the aerosol generating substrate is high, so that the atomizer 10 can more fully consume the aerosol generating substrate, which is beneficial to energy saving and can also reduce the frequency of users replacing and / or supplementing the aerosol generating substrate.

[0037] In some embodiments, as shown in FIG. 3 and FIG. 5, the liquid guide 3 is further provided with a central air passage 32 spaced from the capillary passage 31, and the central air passage 32 is in communication with the air flow passage 21. It can be understood that when the liquid guide portion 22 is hollowly arranged to enclose the atomization cavity 221, the central air passage 32 is in communication with the air flow passage 21 via the atomization cavity 221. Both the capillary passage 31 and the central air passage 32 extend from a first end 33 of the liquid guide 3 to a second end 34 of the liquid guide 3 (see FIG. 5). The first end 33 and the second end 34 are opposite ends of the liquid guide 3 in the extension direction of the liquid guide 3, and the air flow passage 21 guides the aerosol in the direction from the second end 34 to the first end 33, that is, the direction from the second end 34 to the first end 33 is the direction of the aerosol out of the atomizer 10, which is also the direction of the gas flow in the air flow passage 21. In FIG. 3, the first end 33 can be simply understood as the upper end of the liquid guide 3, and the second end 34 can be simply understood as the lower end of the liquid guide 3. The first end 33 is in contact with the liquid guide portion 22, and the second end 34 extends into the temporary storage cavity 12. The leaked liquid squeezed out of the liquid guide portion 22 flows from the first end 33 to the second end 34 and into the temporary storage cavity 12. That is, the leaked liquid squeezed out of the liquid guide portion 22 flows in the direction from top to bottom, the aerosol flows in the direction from bottom to top in the liquid guide portion 22, and the central air passage 32 is spaced from the capillary passage 31, so that the gas flow path and the liquid flow path on the liquid guide 3 are independent of each other. The atmosphere supplied to the liquid guide portion 22 by the central air passage 32 drives the aerosol to diffuse into the air flow passage 21, and then the aerosol is guided out of the atomizer 10 via the air flow passage 21. Referring to FIG. 5, the capillary passage 31 can be a through groove provided on the outer wall of the liquid guide 3, and has an open peripheral wall; the capillary passage 31 can also be a through hole surrounding the central air passage 32, and has a closed peripheral wall. However, no matter how the capillary passage 31 is arranged, the capillary passage 31 is spaced from the central air passage 32, the leaked liquid flows in the capillary passage 31, and the atmosphere flows in the central air passage 32, which reduces the possibility of the leaked liquid entering the central air passage 32 via the capillary passage 31, and improves the user experience.

[0038] In some embodiments, as shown in FIG. 5, the flow passage cross-sectional area of the capillary passage 31 decreases in the direction from the first end 33 to the second end 34, that is, the capillary force generated by the aerosol generating substrate at the capillary passage 31 increases in the direction from top to bottom. It can be simply understood that the attraction of the liquid guide 3 to the aerosol generating substrate increases in the direction from top to bottom, so that the leaked liquid squeezed out of the liquid guide portion 22 can accumulate at the lower end of the liquid guide 3, that is, the position (lower end) with greater attraction in the liquid guide 3 can lock the liquid, so as to store the leaked liquid at the second end 34 (lower end) of the liquid guide 3 and / or in the temporary storage cavity 12, so that the leaked liquid is away from the liquid guide portion 22, and the possibility of the leaked liquid accumulating in the liquid guide portion 22 to form a liquid column is reduced, thereby reducing the possibility of the atomizer 10 sucking the leaked liquid.

[0039] In some embodiments, as shown in FIG. 5, the outer wall of the liquid guide 3 is provided with at least one drainage groove 35, and each drainage groove 35 forms a capillary channel 31 together. Compared with the implementation of forming a capillary channel 31 by providing a through hole, the drainage groove 35 has an open peripheral wall in a groove structure, and has a larger operable space, which is convenient for machining.

[0040] Specifically, as shown in FIGS. 3 and 5, in the case of providing one drainage groove 35 on the outer wall of the liquid guide 3, the machining process of the capillary channel 31 is simplified, and the liquid guide 3 is convenient for machining. In the case of providing multiple drainage grooves 35 on the outer wall of the liquid guide 3, each drainage groove 35 guides the liquid leakage flow at multiple positions, and the capillary channel 31 can guide a larger amount of liquid leakage flow in a unit of time, and has higher timeliness, which is convenient for the liquid leakage on the liquid guide portion 22 to flow to the temporary storage cavity 12 quickly, and is also convenient for the liquid leakage in the temporary storage cavity 12 to flow to the liquid guide portion 22 quickly.

[0041] In some embodiments, as shown in FIGS. 3 and 5, in the diameter direction of the central air channel 32 (the left-right direction shown in FIG. 5), the depth of the drainage groove 35 is greater than or equal to 0.2 mm and less than or equal to 0.6 mm, and it can be understood that the depth of the drainage groove 35 represents the size of the drainage groove 35 in the radial direction of the liquid guide 3; and / or the width of the drainage groove 35 is greater than or equal to 0.1 mm and less than or equal to 0.6 mm, and it can be understood that the width of the drainage groove 35 represents the distance between the two side walls forming a single drainage groove 35. Specifically, the depth of the drainage groove 35 can be 0.2 mm, 0.25 mm, 0.3 mm, 0.35 mm, 0.4 mm, 0.45 mm, 0.5 mm, 0.55 mm, 0.6 mm, and other arbitrary values within the above range; the width of the drainage groove 35 can be 0.1 mm, 0.15 mm, 0.2 mm, 0.25 mm, 0.3 mm, 0.35 mm, 0.4 mm, 0.45 mm, 0.5 mm, 0.55 mm, 0.6 mm, and other arbitrary values within the above range. The user can set the depth and width of the drainage groove 35 according to actual needs, so that the drainage groove 35 can guide the liquid leakage at the liquid guide portion 22 into the temporary storage cavity 12, and limit the flow of the liquid leakage supplied by the drainage groove 35 to the temporary storage cavity 12, and reduce the possibility of the liquid leakage in the temporary storage cavity 12 overflowing to the outside of the temporary storage cavity 12 or leaking into the central air channel 32.

[0042] In some embodiments, as shown in FIG. 5, the outer wall of the liquid guide 3 is provided with at least one flow guiding groove 35, and each flow guiding groove 35 forms a capillary channel 31. The liquid guide 3 includes a plurality of fins 36 extending along the extension direction of the central air passage 32, i.e., the fins 36 extend along the axial direction of the liquid guide 3, and the first end 33 and the second end 34 are opposite ends of the fins 36 in the axial direction of the liquid guide 3. Each fin 36 is arranged parallel to and spaced apart from each other in the circumferential direction of the liquid guide 3, and a flow guiding groove 35 is formed between two adjacent fins 36. It can be understood that the "width of the flow guiding groove 35" refers to the minimum distance between two adjacent fins 36. The fins 36 are provided with a plurality of flow guiding grooves 35, and each flow guiding groove 35 surrounds the central air passage 32 in the circumferential direction to collectively guide the leakage liquid flow at multiple positions, thereby increasing the leakage liquid flow rate that can be guided by the liquid guide 3 in a unit of time, and improving the timeliness of the leakage liquid flow. Referring to FIG. 3, the possibility that the leakage liquid at the liquid guiding portion 22 does not all or in time flow into the liquid guide 3, but leaks into the atomization cavity 221 or accumulates into a liquid column is reduced; and the possibility that the leakage liquid in the temporary storage cavity 12 does not all or in time flow to the liquid guiding portion 22, but causes the user to be unable to obtain the aerosol in time is also reduced.

[0043] In some embodiments, as shown in FIGS. 5 and 6, the liquid guide 3 includes a flow guiding section 37 adjacent to the liquid guiding portion 22, and in the flow guiding section 37, the flow passage cross-sectional area of the capillary channel 31 decreases from the direction close to the liquid guiding portion 22 to the direction away from the liquid guiding portion 22. It can be understood that in the downward direction, the flow passage of the capillary channel 31 in the flow guiding section 37 decreases, and when the capillary channel 31 is provided as a flow guiding groove 35, the cross-sectional area of the inner wall of the flow guiding groove 35 formed by the liquid guide 3 decreases from the first end 33 to the second end 34, wherein the cross-sectional direction is in the diameter direction of the central air passage 32, that is, the flow passage cross-sectional area of the flow guiding groove 35 in the flow guiding section 37 decreases from top to bottom.

[0044] In some possible embodiments, the flow guiding section 37 is a portion of the liquid guide 3 adjacent to the liquid guiding portion 22 and having an inclined side wall, specifically, the inclined side wall of the flow guiding section 37 forms the inner wall of the flow guiding groove 35 and expands in diameter in the downward direction, so as to guide the leakage liquid flow by using the slope surface, and expand the flow passage area at the position where the flow guiding groove 35 is connected to the liquid guiding portion 22, thereby increasing the leakage liquid flow rate that can be guided by the flow guiding groove 35 at the first end 33, and reducing the possibility that the leakage liquid accumulates at the liquid guiding portion 22 to form a liquid column or leaks into the air flow passage 21.

[0045] In some possible embodiments, as shown in FIG. 5 and FIG. 6, the inner wall of the drainage groove 35 is arranged adjacent to the inner wall of the atomization cavity 221 at the position where the liquid guide 3 is in contact with the liquid guide portion 22. That is, at the upper end of the drainage section 37, each layer of the slit in the liquid guide portion 22 is in the drainage groove 35, so that the leaked liquid flowing out of each layer of the slit in the liquid guide portion 22 can flow into the drainage groove 35, further reducing the possibility of the leaked liquid accumulating at the liquid guide portion 22 to form a liquid column, or leaking into the airflow passage 21.

[0046] In some embodiments, as shown in FIG. 3 and FIG. 5, the liquid guide 3 is further provided with a central air channel 32 spaced from the capillary channel 31, and the central air channel 32 is in communication with the airflow passage 21. The capillary channel 31 and the central air channel 32 both extend from a first end 33 of the liquid guide 3 to a second end 34 of the liquid guide 3 (see FIG. 5), the first end 33 and the second end 34 are opposite ends of the liquid guide 3 in the extension direction, and the airflow passage 21 leads the aerosol out in the direction from the second end 34 to the first end 33, that is, the direction from the second end 34 to the first end 33 is the direction of leading the aerosol out, which is also the direction of the gas flow in the airflow passage 21. The first end 33 is in contact with the liquid guide portion 22, and the second end 34 extends into the temporary storage cavity 12, the leaked liquid squeezed out by the liquid guide portion 22 flows from the first end 33 to the second end 34 and enters the temporary storage cavity 12.

[0047] As shown in FIG. 4 and FIG. 7, the shell 1 includes a housing 13 and a base 14, one end (upper end) of the housing 13 is provided with an air outlet 131, the air outlet 131 is in communication with the airflow passage 21, and the aerosol is led out of the atomizer 10 through the air outlet 131; the other end (lower end) of the housing 13 forms an open opening 132. The base 14 is arranged at the opening 132, and the base 14 is provided with the above-mentioned temporary storage cavity 12, and the side wall of the housing 13 and the top wall of the base 14 together form the liquid storage cavity 11. The base 14 is provided with a liquid collection groove 141 and / or a liquid storage member in communication with the capillary channel 31, and the liquid collection groove 141 and / or the liquid storage member are arranged in the temporary storage cavity 12 to absorb the aerosol generating substrate in the capillary channel 31 and limit the position of the aerosol generating substrate in the temporary storage cavity 12. Specifically, the liquid storage member can be a liquid storage cotton. The base 14 can be provided with only the liquid collection groove 141, can be provided with only the liquid storage member, or can be provided with both the liquid collection groove 141 and the liquid storage member. However, regardless of the above-mentioned implementation, the leaked liquid introduced by the capillary channel 31 is stored in the liquid collection groove 141 and / or the liquid storage member, and the liquid collection groove 141 and / or the liquid storage member limit the position of the leaked liquid in the temporary storage cavity 12.

[0048] In some possible embodiments, as shown in FIG. 3 and FIG. 7, the base 14 is provided with only the liquid collecting groove 141 (see FIG. 7), and the liquid collecting groove 141 is in communication with the capillary channel 31. In the schematic view shown in FIG. 7, the base 14 is provided with a plurality of ribs at the bottom of the temporary storage cavity 12, the ribs are parallel and spaced apart, and a liquid collecting groove 141 is formed between two ribs, the side wall of the rib forms the groove wall of the liquid collecting groove 141, and the liquid collecting grooves 141 are in communication with each other. When the aerosol generating substrate contacts the groove wall of the liquid collecting groove 141, due to the attraction between liquid molecules and the surface tension, the liquid molecules of the aerosol generating substrate arrange to form a thin film (i.e., a liquid film) on the surface of the groove wall of the liquid collecting groove 141, and the adhesion between the aerosol generating substrate and the surface of the groove wall of the liquid collecting groove 141 also causes the aerosol generating substrate to be retained in the liquid collecting groove 141, reducing the possibility of liquid leakage flowing randomly in the temporary storage cavity 12, and then leaking out of the atomizer 10 or leaking into the central air channel 32.

[0049] It should be noted that FIG. 3 and FIG. 7 are both sectional views of FIG. 2, but FIG. 3 and FIG. 6 are in different sectional directions, FIG. 3 is a sectional view in the A-A direction of FIG. 2, and FIG. 7 is a sectional view in the C-C direction of FIG. 2, wherein the A-A direction is perpendicular to the C-C direction.

[0050] In some embodiments, as shown in FIG. 7, the base 14 includes a mounting portion 142 and a liquid storage portion 143, the atomization assembly 2 is mounted to the mounting portion 142, the liquid storage portion 143 forms the temporary storage cavity 12, and the liquid guide 3 extends into the temporary storage cavity 12 through the mounting portion 142, i.e., the mounting portion 142 is located above the temporary storage cavity 12 and connected to the atomization assembly 2, and the temporary storage cavity 12 is formed in the interior of the base 14 and has a relatively closed profile. It can be understood that the liquid storage cavity 11 is formed in the top wall of the mounting portion 142, and the temporary storage cavity 12 is formed in the bottom wall of the mounting portion 142, and only a sealing structure needs to be provided at the position where the mounting portion 142 is connected to the atomization assembly 2, so that the liquid storage cavity 11 and the temporary storage cavity 12 are separated, i.e., in the normal use state, the aerosol generating substrate in the liquid storage cavity 11 is not easy to flow directly into the temporary storage cavity 12, and the structure is simple and convenient for setting a sealing structure.

[0051] In some embodiments, as shown in FIGS. 7 and 8, the atomization assembly 2 includes an atomization tube 24, and the above-mentioned liquid guide part 22 and heating element 23 are both installed in the atomization tube 24, wherein the gas outlet 131 is located above the liquid guide part 22, and the liquid guide part 22 is located above the liquid guide body 3. Referring to the solid arrows shown in FIG. 6, the liquid guide body 3 guides the liquid leakage at the liquid guide part 22 to flow into the temporary storage cavity 12 in the direction from top to bottom through the capillary channel 31; referring to the dashed arrows shown in FIG. 7, the liquid guide body 3 guides the external atmosphere to flow into the atomization cavity 221 in the direction from bottom to top through the central air duct 32, and the airflow generated at the atomization cavity 221 flows to the gas outlet 131 in the direction from bottom to top, and is guided out through the gas outlet 131. The atomization tube 24 simultaneously forms the installation base of the liquid guide part 22 and the liquid guide body 3, and the liquid guide body 3 can be installed at the same time when the liquid guide part 22 is installed, without the need to additionally set a part for installing the liquid guide body 3, thereby simplifying the assembly difficulty of the liquid guide body 3, and reducing the difficulty of internal part layout of the atomization assembly 2.

[0052] In some embodiments, as shown in FIGS. 7 and 8, the atomization tube 24 includes a first atomization tube 241 and a second atomization tube 242, the first atomization tube 241 is provided with a first through hole 2411 communicating with the liquid storage cavity 11, the second atomization tube 242 is arranged in the first atomization tube 241 and is provided with a second through hole 2421 communicating with the first through hole 2411, the liquid guide part 22 and the liquid guide body 3 are both clamped in the second atomization tube 242, and the liquid guide part 22 is arranged at the second through hole 2421. That is, the atomization assembly 2 separates the airflow channel 21 and the liquid storage cavity 11 through the first atomization tube 241, and installs the liquid guide part 22 and the liquid guide body 3 through the second atomization tube 242. The atomization assembly 2 further includes a liquid suction element 25 arranged between the first atomization tube 241 and the second atomization tube 242, the liquid suction element 25 itself has the functions of guiding liquid and locking liquid, and the liquid suction element 25 is used to transfer the aerosol generating substrate to the liquid guide part 22, so as to facilitate the sufficient consumption of the aerosol generating substrate in the liquid storage cavity 11 by capillary action, and reduce the possibility of leakage of the aerosol generating substrate in the liquid storage cavity 11 into the airflow channel 21 due to pressure fluctuation.

[0053] In some possible implementation schemes, a longer second atomization tube 242 can be arranged to enclose the airflow channel 21 with the inner wall of the second atomization tube 242, and the liquid suction element 25 and the airflow channel 21 are separated by the second atomization tube 242. Of course, a shorter second atomization tube 242 can also be arranged as shown in the schematic diagram of the present application, and part of the inner wall of the liquid suction element 25 encloses the airflow channel 21. It can be understood that the second atomization tube 242 supports and limits the positions of the liquid guide part 22 and the liquid guide body 3, and therefore the structural strength of the second atomization tube 242 is greater than that of the liquid suction element 25. For example, the second atomization tube 242 can be made of a metal tube, and reducing the length of the second atomization tube 242 is conducive to reducing the self-weight of the atomization assembly 2, and facilitating the use of the user.

[0054] In some embodiments, as shown in FIG. 7, the shell 1 comprises a housing 13 and a base 14. One end (upper end) of the housing 13 is provided with an air outlet 131, which is in communication with the airflow channel 21, and the aerosol is guided out of the atomizer 10 via the air outlet 131. The other end (lower end) of the housing 13 forms an open end 132. The base 14 is arranged at the open end 132, and the base 14 is provided with the above-mentioned temporary storage cavity 12. The side wall of the housing 13 and the top wall of the base 14 jointly form the liquid storage cavity 11. The base 14 comprises a mounting portion 142 and a liquid storage portion 143. The atomization assembly 2 is mounted on the mounting portion 142, and the liquid storage portion 143 forms the temporary storage cavity 12. The liquid storage cavity 11 is formed in the top wall of the mounting portion 142, and the temporary storage cavity 12 is formed in the bottom wall of the mounting portion 142. The liquid storage portion 143 comprises a first end face 1431 and an air inlet 1432. The air inlet 1432 penetrates the first end face 1431. The first end face 1431 is formed in the temporary storage cavity 12 and is away from the liquid guide portion 22, i.e., the first end face 1431 forms the bottom surface of the temporary storage cavity 12. The air inlet 1432 is in communication with the atmosphere and the temporary storage cavity 12. The air inlet 1432 is used to supply the atmosphere to the central air channel 32.

[0055] Specifically, in some possible embodiments, the air inlet 1432 extends into the central air channel 32, i.e., the air inlet 1432 is a hole-shaped channel with a certain depth, which is coaxially arranged with the central air channel 32 and longitudinally extends in the central air channel 32. The wall surface of the air inlet 1432 can be used to separate the liquid flow path and the gas flow path, thereby reducing the possibility of liquid leakage into the central air channel 32 or flowing out of the atomizer 10 via the air inlet 1432.

[0056] In some possible embodiments, the first end 33 and the second end 34 are opposite ends of the liquid guide 3 in the extension direction. The airflow channel 21 guides the aerosol in the direction from the second end 34 to the first end 33. The second end 34 contacts the first end face 1431, and the first end face 1431 forms a limiting surface of the liquid guide 3, thereby limiting the freedom of the liquid guide 3 and reducing the possibility of the liquid guide 3 moving in the up-down direction shown in FIG. 7. In this embodiment, the air inlet is arranged adjacent to the second end 34, i.e., the air inlet is located at the lower part of the axial direction of the liquid guide 3, which is beneficial to maintaining the structural integrity of the capillary channel 31. The air inlet is in communication with the central air channel 32 and the air inlet 1432, so as to supply the atmosphere to the central air channel 32. It should be noted that, in this embodiment, part of the atmosphere enters the temporary storage cavity 12. However, because the aerosol generating substrate generates capillary forces at the liquid collection groove 141 and the capillary channel 31, and each liquid collection groove 141 is in communication with the capillary channel 31 and the liquid guide portion 22, the liquid in each liquid collection groove 141 is more likely to flow to the liquid guide portion 22 via the capillary channel 31, and it is more difficult for the liquid to escape from the liquid collection groove 141 and enter the central air channel 32.

[0057] In some possible embodiments, as shown in FIG. 7, the first end 33 and the second end 34 are opposite ends of the liquid guide 3 in the extension direction, and the airflow passage 21 leads the aerosol in the direction from the second end 34 to the first end 33. The second end 34 is spaced from the first end face 1431, and the gap between the second end 34 and the first end face 1431 forms an air inlet passage that is in communication with the central air channel 32 and the air inlet 1432. That is, without additional openings or holes on the peripheral wall of the liquid guide 3, the capillary passage 31 remains structurally intact, facilitating the aerosol generating substrate to flow into the liquid collection groove 141 through the capillary passage 31.

[0058] As shown in FIG. 9, the present application also provides an electronic atomization device, which can be an electronic cigarette, an electronic medical atomizer 10, or an electronic beauty atomizer 10, etc. The electronic atomization device comprises the above-mentioned atomizer 10. The electronic atomization device further comprises a power supply 20, which is electrically connected to the atomization assembly 2 in the atomizer 10. The power supply 20 supplies power to the atomizer 10 to drive the atomization assembly 2 (see FIG. 7) to work. Specifically, the power supply 20 is arranged outside the liquid storage cavity 11 (see FIG. 3), and the power supply 20 is electrically connected to the heating element 23 (see FIG. 7) to provide power to the heating element 23 and control the start and stop of the heating element 23 and the heating power of the heating element 23. The present application does not limit the specific type of the power supply 20. For example, the power supply 20 can be a lithium battery. The present application protects an electronic atomization device configured with the above-mentioned atomizer 10. Since the electronic atomization device comprises the above-mentioned atomizer 10, it has the same technical effects, i.e., the electronic atomization device has a smaller possibility of liquid leakage, a higher utilization rate of aerosol generating substrate, and a smaller noise when obtaining aerosol.

[0059] The above merely provides a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An atomiser, wherein, The application relates to an aerosol generating device. The device comprises: a housing, which is provided with a storage cavity and a temporary storage cavity, and which is used for storing an aerosol generating substrate; an atomization assembly, which is internally provided with an airflow channel; the atomization assembly comprises a liquid guide part and a heating element connected with the liquid guide part; the liquid guide part is used for inputting the aerosol generating substrate and is arranged in the airflow channel; the liquid guide part is in communication with the storage cavity and is spaced from the temporary storage cavity; 2. The atomizer of claim 1, wherein, a liquid guide body, which is provided with a capillary channel; the liquid guide body is in contact with the liquid guide part; the aerosol generating substrate flows between the liquid guide part and the temporary storage cavity through the capillary channel.

3. The atomizer of claim 1, wherein, The liquid guide part is hollow; the inner wall of the liquid guide part surrounds an atomization cavity which is in communication with the airflow channel; the heating element is arranged in the atomization cavity; the aerosol is generated in the atomization cavity and diffused into the airflow channel.

4. The atomizer of claim 3, wherein, The flow passage cross-sectional area of the liquid guide part used for inputting the aerosol generating substrate is smaller than the flow passage cross-sectional area of the capillary channel.

5. The atomizer of claim 3, wherein, The liquid guide part is provided with a plurality of micropores; the pore diameter of the micropores is smaller than the flow passage cross-sectional area of the capillary channel. The liquid guide body is further provided with a central air channel; the central air channel is spaced from the capillary channel and is in communication with the airflow channel; the capillary channel and the central air channel both extend from the first end of the liquid guide body to the second end of the liquid guide body; 6. The atomizer of claim 5, wherein, wherein the first end is in contact with the liquid guide part; the second end extends into the temporary storage cavity; the airflow channel guides the aerosol in the direction from the second end to the first end.

7. The atomizer of claim 5, wherein, In the direction from the first end to the second end, the flow passage cross-sectional area of the capillary channel decreases.

8. The atomizer of claim 7, wherein, The outer wall of the liquid guide body is provided with at least one drainage groove; each drainage groove forms the capillary channel. In the diameter direction of the central air channel, the depth of the drainage groove is greater than or equal to 0.2 mm and smaller than or equal to 0.6 mm; 9. The atomizer of claim 7, wherein, and / or, the width of the drainage groove is greater than or equal to 0.1 mm and smaller than or equal to 0.6 mm.

10. The atomizer of claim 9, wherein, The liquid guide body comprises a plurality of fins which extend in the extension direction of the central air channel; each fin is arranged in parallel and spaced from each other; a drainage groove is formed between two adjacent fins; wherein the first end and the second end are opposite ends of the fins in the extension direction of the central air channel.

11. The atomizer of claim 10, wherein, The liquid guide body comprises a drainage section adjacent to the liquid guide part; in the drainage section, the flow passage cross-sectional area of the capillary channel decreases from the direction close to the liquid guide part to the direction away from the liquid guide part. The part of the liquid guide body adjacent to the liquid guide part and having an inclined side wall forms the drainage section; the inclined side wall of the drainage section forms the inner wall of the drainage groove; 12. The atomizer of claim 5, wherein, and / or, the drainage section is located at the end where the liquid guide body is in contact with the liquid guide part; and each layer gap in the liquid guide part is in the drainage groove. The housing comprises an outer shell and a base; one end of the outer shell is provided with an air outlet; the air outlet is in communication with the airflow channel; the aerosol is guided out through the air outlet; the other end of the outer shell forms an open opening. The base is arranged at the opening, and the base is provided with the temporary storage cavity, and the side wall of the shell and the top wall of the base jointly form the liquid storage cavity.

13. The atomizer of claim 12, wherein, The base is provided with a liquid storage member in communication with the capillary channel, the liquid storage member is arranged in the temporary storage cavity, and the liquid storage member is used for absorbing the aerosol generating substrate in the capillary channel and limiting the position of the aerosol generating substrate in the temporary storage cavity. The base is provided with a plurality of ribs at the bottom of the temporary storage cavity, the ribs are arranged in parallel and at intervals, a liquid collecting groove is formed between two ribs, the side wall of the rib forms the groove wall of the liquid collecting groove, the liquid collecting grooves are in communication with each other, and the aerosol generating substrate is limited in the liquid collecting groove.

14. The atomizer of claim 12, wherein, The base includes a mounting portion and a liquid storage portion, the atomization assembly is mounted on the mounting portion, the liquid storage portion forms the temporary storage cavity, the liquid storage cavity is formed in the top wall of the mounting portion, and the temporary storage cavity is formed in the bottom wall of the mounting portion.

15. The atomizer of claim 14, wherein, The liquid storage portion includes a first end face and an air inlet, the air inlet penetrates through the first end face and is used for supplying atmosphere to the central air channel, the first end face is formed in the temporary storage cavity and is away from the liquid guide portion.

16. The atomizer of claim 15, wherein, The air inlet extends into the central air channel and is coaxially arranged with the central air channel.

17. The atomizer of claim 15, wherein, The second end contacts the first end face, the first end face forms a limiting surface of the liquid guide body, and the liquid guide body is provided with an air inlet channel at a position adjacent to the second end; Or, the second end is spaced from the first end face, and a gap between the second end and the first end face forms an air inlet channel in communication with the central air channel and the air inlet.

18. The atomizer of claim 1, wherein, The atomization assembly further includes: An atomization tube is mounted in the shell, the liquid storage cavity is formed between the atomization tube and the shell, and the atomization tube forms the airflow channel. The liquid guide portion and the liquid guide body are both mounted in the atomization tube.

19. The atomizer of claim 18, wherein, The atomization assembly further includes: A first atomization tube is provided with a first through hole, and the first through hole is in communication with the liquid storage cavity; A second atomization tube is arranged in the first atomization tube and is provided with a second through hole in communication with the first through hole, the liquid guide portion and the liquid guide body are clamped in the second atomization tube, and the liquid guide portion is arranged at the second through hole; A liquid suction member is arranged between the first atomization tube and the second atomization tube, the liquid suction member is used for liquid locking and can deliver the aerosol generating substrate to the liquid guide portion.

20. An electronic atomizing device, wherein, The electronic atomization device further includes: A power supply is used for supplying power to the atomizer.

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