Atomizer and electronic atomization device

Abstract

The invention discloses an atomizer and an electronic atomization device. The atomizer comprises: a housing defining a central axis; the holding base is arranged in the shell and is matched with the shell to form a liquid storage cavity; the holding base is provided with a containing cavity, the side wall of the holding base is provided with a concave part, and the concave part is matched with the shell to form a liquid discharging channel; a first side wall located between the containing cavity and the lower liquid channel is defined by the sunken part, and a liquid inlet is formed in the first side wall; the atomizing core is arranged in the containing cavity and provided with a liquid absorbing face used for receiving the liquid matrix, and the liquid absorbing face is arranged in the direction parallel to the central axis and communicates with the liquid discharging channel through a liquid inlet; the air exchange column penetrates through the bottom wall of the holding base, an air exchange channel used for supplementing air to the liquid storage cavity is defined between the air exchange column and the bottom wall of the holding base, and a part of the air exchange column extends into the liquid discharging channel in the concave part. By means of the arrangement, the problem that bubbles are easily adsorbed by the surface of the support and cannot be guided into the liquid storage cavity in the air exchange process of the atomizer is solved.

Description

Technical Field

[0001] This application relates to the technical field of atomization, and particularly to an atomizer and an electronic atomization device. Background Art

[0002] An electronic atomization device generally includes an atomizer and a power supply component. The power supply component is electrically connected to the atomizer and used to supply power to the atomizer. The atomizer usually contains an atomizable liquid matrix and an atomization core. The atomization core includes a porous ceramic body and a heating element. A large number of micropores are provided inside the porous ceramic body to absorb the liquid matrix, and the heating element heats and atomizes the liquid matrix to generate an aerosol. As the user sucks, the liquid matrix in the liquid storage cavity is continuously consumed, and air needs to enter the liquid storage cavity from the outside to maintain the air pressure balance in the liquid storage cavity and prevent the negative pressure in the liquid storage cavity from being too large to cause the liquid matrix to be unable to be supplied. Therefore, a ventilation channel needs to be provided in the atomizer so that air can enter the liquid storage cavity through the ventilation channel.

[0003] Currently, for a laterally atomizing atomizer, a typical structure is to use a bracket made of flexible material to install and support the atomization core. The design position of the ventilation channel is usually close to the bracket or provided on the bracket. Due to the strong adsorption ability of the flexible material itself, when the user sucks, bubbles are likely to appear when external air enters the liquid storage cavity through the ventilation channel. The bubbles are easily adsorbed on the surface of the bracket, so that the bubbles are prone to the risk of bubble jamming during movement and cannot be guided into the liquid storage cavity. Even the bubbles are easily gathered near the liquid inlet, which is extremely disadvantageous for transferring the liquid to the atomization core, and the flexible material has poor sealing performance for the porous ceramic body. Summary of the Invention

[0004] This application mainly provides an atomizer and an electronic atomization device to solve the problem that in the related art, bubbles in a laterally atomizing atomizer are easily adsorbed on the surface of the bracket during the ventilation process and thus cannot be guided into the liquid storage cavity.

[0005] To solve the above technical problems, a technical solution adopted in this application is: to provide an atomizer, including:

[0006] A housing defining a central axis;

[0007] A holding base disposed in the housing and cooperating with the housing to form a liquid storage cavity for storing a liquid matrix; the holding base has a receiving cavity, and a recessed portion is provided on the side wall of the holding base. The recessed portion cooperates with the housing to form a liquid supply channel; the recessed portion defines a first side wall located between the receiving cavity and the liquid supply channel, and a liquid inlet is provided on the first side wall.

[0008] An atomization core is disposed in the accommodation cavity; the atomization core has a liquid absorption surface for receiving the liquid matrix, and the liquid absorption surface is arranged along a direction parallel to the central axis; the liquid absorption surface is communicated with the lower liquid channel through the liquid inlet.

[0009] A ventilation column, the ventilation column passes through the bottom wall of the holding base and a ventilation channel for supplementing air to the liquid storage cavity is defined between the ventilation column and the bottom wall of the holding base, wherein a part of the ventilation column extends into the lower liquid channel in the recess.

[0010] In some embodiments, the part of the ventilation column extending into the lower liquid channel abuts against the surface of the first side wall facing away from the atomization core.

[0011] In some embodiments, the part of the ventilation column extending into the lower liquid channel straddles the liquid inlet.

[0012] In some embodiments, the orthographic projection of the ventilation column on the liquid absorption surface is located at the central position in the length direction of the liquid absorption surface.

[0013] In some embodiments, the bottom wall of the holding base is provided with a jack, and the ventilation column and the inner surface of the jack cooperate to form the ventilation channel. One end of the ventilation channel communicates with the liquid storage cavity, and the other end communicates with the external atmosphere.

[0014] In some embodiments, a ventilation groove is provided on the outer side surface of the ventilation column, and the ventilation groove and the inner surface of the jack cooperate to form the ventilation channel; and / or,

[0015] The inner surface of the jack is provided with a ventilation groove, and the outer side surface of the ventilation column cooperates with the ventilation groove to form the ventilation channel; and / or,

[0016] The outer side surface of the ventilation column and the inner surface of the jack are at least partially spaced apart to cooperate to form the ventilation channel.

[0017] In some embodiments, the atomizer further includes a base connected to the holding base. The base includes a mounting portion and an annular flange connected to one end of the mounting portion close to the holding base. An annular groove is provided on the side of the holding base facing the base, and the annular flange is inserted into the annular groove.

[0018] An air inlet cavity is formed between the mounting portion and the bottom wall of the holding base, and the air inlet cavity is communicated with the accommodation cavity; an air inlet column is provided on the surface of the mounting portion close to the holding base. One end of the air inlet column is communicated with the air inlet cavity, and the other end is communicated with the external atmosphere.

[0019] The ventilation column is connected to the surface of the installation part close to the holding base, and the ventilation channel communicates with the air inlet cavity;

[0020] An air outlet hole is provided at one end of the holding base away from the base, an air outlet pipe is provided inside the housing, one end of the air outlet hole communicates with the air outlet pipe, and the other end communicates with the receiving cavity.

[0021] In some embodiments, the air inlet column, the receiving cavity and the air outlet hole are coaxially arranged.

[0022] In some embodiments, at least one air guiding groove is provided on the side surface of the ventilation column. The air guiding groove includes a first part located in the jack and a second part located in the lower liquid channel, and the first part is communicated with the second part.

[0023] In some embodiments, the air guiding groove extends longitudinally along the ventilation column to the top end.

[0024] In some embodiments, the atomization core further includes an atomization surface, the atomization surface is disposed opposite to the liquid absorption surface, and the atomization surface and the receiving cavity cooperate to form an atomization cavity.

[0025] In some embodiments, the atomizer further includes a conductive electrode extending parallel to the central axis into the receiving cavity. The conductive electrode contacts the atomization surface, so as to abut the atomization core against the surface of the first side wall away from the ventilation column.

[0026] In some embodiments, an opening for installing the atomization core into the receiving cavity is provided on one side of the holding base away from the recessed part.

[0027] In some embodiments, the material of the ventilation column is a hard material, and the holding base is a flexible material; at least part of the holding base provides a seal between the liquid storage cavity and the atomization core.

[0028] To solve the above technical problems, another technical solution adopted by this application is: to provide an electronic atomization device, including:

[0029] An atomizer, which is any one of the atomizers as described above;

[0030] A power supply component, electrically connected to the atomizer, for providing electrical energy for the atomizer.

[0031] The beneficial effects of the present application are as follows: Different from the prior art, the present application discloses an atomizer and an electronic atomization device. The atomizer includes: a housing defining a central axis; a holding base disposed within the housing and cooperating with the housing to form a liquid storage cavity for storing a liquid matrix; the holding base has a receiving cavity, and the side wall of the holding base has a recess, and the recess cooperates with the housing to form a liquid downward channel; the recess defines a first side wall located between the receiving cavity and the liquid downward channel, and a liquid inlet is provided on the first side wall; an atomization core is disposed within the receiving cavity; the atomization core has a liquid absorption surface for receiving the liquid matrix, and the liquid absorption surface is disposed along a direction parallel to the central axis; the liquid absorption surface is communicated with the liquid downward channel through the liquid inlet; a ventilation column passes through the bottom wall of the holding base, and a ventilation channel for supplementing air to the liquid storage cavity is defined between the ventilation column and the bottom wall of the holding base, wherein a part of the ventilation column extends into the liquid downward channel within the recess. Through the above arrangement, the liquid storage cavity can be ventilated. The outer side surface of the ventilation column located in the liquid downward channel is not wrapped with a flexible material, so bubbles are not easily adsorbed on the surface of the flexible material, and there is no risk of bubble jamming. Moreover, the ventilation column can also guide the direction of the bubbles and has a certain liquid guiding function for the liquid matrix, and the bubbles will not gather near the liquid inlet to affect the transfer of the liquid matrix to the atomization core, effectively improving the problem that in the prior art, in the ventilation process of a laterally atomized atomizer, bubbles are easily adsorbed on the surface of the bracket and thus cannot be guided into the liquid storage cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings, where:

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

[0034] Figure 2 is Figure 1 a cross-sectional schematic diagram of the electronic atomization device provided;

[0035] Figure 3 is Figure 1 a schematic structural diagram of the atomizer of the electronic atomization device provided;

[0036] Figure 4 is Figure 3 a cross-sectional schematic diagram of the atomizer provided;

[0037] Figure 5 is Figure 4 a partially enlarged schematic diagram of area A of the atomizer provided;

[0038] Figure 6 is Figure 3 A schematic structural view of the atomization core of the provided atomizer;

[0039] Figure 7 is Figure 3 A schematic structural view of the provided holding base of the atomizer at an angle;

[0040] Figure 8 is Figure 7 A schematic structural view of the provided holding base at another angle;

[0041] Figure 9 is Figure 7 A schematic cross-sectional view of the provided holding base;

[0042] Figure 10 is Figure 3 A schematic structural view of the base of the provided atomizer. Detailed implementation manners

[0043] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0044] The terms "first", "second", and "third" in the embodiments of the present application are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "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 "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but optionally further includes unlisted steps or units, or optionally further includes other steps or units inherent to these processes, methods, products, or devices.

[0045] Referring to "embodiment" herein means that a specific feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0046] Refer to Figures 1 to 2 , Figure 1 which is a schematic structural diagram of an embodiment of an electronic atomization device provided by the present application, Figure 2 and Figure 1 is a schematic cross-sectional view of the electronic atomization device provided by

[0047] See Figure 1 and Figure 2 , the present application provides an electronic atomization device 300, which can be used for atomizing a liquid matrix. The electronic atomization device 300 includes an atomizer 100 and a power supply component 200 that are electrically connected to each other.

[0048] Among them, the atomizer 100 is used to store the liquid matrix and atomize the liquid matrix to form an aerosol for the user to inhale. The atomizer 100 can be specifically used in different fields, such as medical, beauty, and recreational inhalation, etc. In a specific embodiment, the atomizer 100 can be used in an electronic aerosolization device to atomize the liquid matrix and generate an aerosol for the inhaler to inhale. The following embodiments will take this recreational inhalation as an example.

[0049] For the specific structure and function of the atomizer 100, reference can be made to the specific structure and function of the atomizer 100 involved in the following embodiments, and the same or similar technical effects can be achieved, which will not be elaborated here.

[0050] The power supply component 200 is provided with a battery cell 210, an electrical connection terminal (not shown in the figure), a pressure sensor (not shown in the figure), and a controller (not shown in the figure), wherein the electrical connection terminal can be electrically connected to the conductive electrode 50 of the atomizer 100. When the user uses the electronic atomization device 300 to inhale, the pressure sensor senses the internal pressure change and sends the sensed signal to the controller, and the controller controls the battery cell 210 to supply electrical energy to the atomizer 100 through the electrical connection terminal. The atomization core 30 in the atomizer 100 can then receive the electrical energy and start heating and atomizing the liquid matrix to generate an aerosol for the user to use. The power supply component 200 may further include other components such as a battery holder (not shown in the figure).

[0051] Refer to Figures 3 to 10 , Figure 3 which Figure 1 is a schematic structural diagram of the atomizer of the electronic atomization device provided by Figure 4 and Figure 3 is a schematic cross-sectional view of the atomizer provided by Figure 5 and Figure 4 is a partial enlarged schematic view of area A of the atomizer provided by Figure 6 and Figure 3 is a schematic structural diagram of the atomization core of the atomizer provided by Figure 7 and Figure 3Schematic structural diagram of the holding base of the provided atomizer at an angle Figure 8 is Figure 7 Schematic structural diagram of the holding base provided at another angle Figure 9 is Figure 7 Schematic cross-sectional diagram of the provided holding base Figure 10 is Figure 3 Schematic structural diagram of the base of the provided atomizer

[0052] See Figures 3 to 5, the atomizer 100 includes a housing 10, a holding base 20, an atomization core 30, and a ventilation column 43. The housing 10 defines a central axis L1 of the atomizer 100. The holding base 20 is disposed inside the housing 10 and cooperates with the housing 10 to form a liquid storage cavity 101 for storing a liquid matrix. The holding base 20 has a receiving cavity 21, and the side wall of the holding base 20 has a recessed portion 202. The recessed portion 202 and the housing 10 cooperate to form a liquid-down channel 22, and the liquid-down channel 22 communicates with the liquid storage cavity 101. The recessed portion 202 defines a first side wall 204 between the receiving cavity 21 and the liquid-down channel 22, and a liquid inlet 201 is provided on the first side wall 204. The atomization core 30 is disposed in the receiving cavity 21. Specifically, the atomization core 30 has a liquid absorption surface 311 for receiving the liquid matrix. The liquid absorption surface 311 is arranged along a direction parallel to the central axis L1 of the atomizer 100, and the liquid absorption surface 311 communicates with the liquid-down channel 22 through the liquid inlet 201, so that the liquid matrix in the liquid storage cavity 101 can enter the liquid-down channel 22, enter the position of the atomization core 30 through the liquid inlet 201, and be absorbed and heated and atomized by the atomization core 30. The ventilation column 43 passes through the bottom wall of the holding base 20, and a ventilation channel 23 for supplementing air to the liquid storage cavity 101 is defined between the ventilation column 43 and the bottom wall of the holding base 20. Wherein, a part of the ventilation column 43 extends into the liquid-down channel 22 in the recessed portion 202. Specifically, the atomization core 30 can be fixed at the liquid inlet 201 by an interference fit manner, and the liquid absorption surface 311 of the atomization core 30 can be arranged facing the liquid inlet 201. It can be understood that the liquid absorption surface 311 of the atomization core 30 is arranged along a direction parallel to the central axis L1, and the liquid absorption surface 311 is arranged facing the liquid inlet 201, and the atomizer 100 adopts a lateral atomization method. Setting the ventilation column 43 in the atomizer 100 can ventilate the liquid storage cavity 101, and a part of the ventilation column 43 extends into the liquid-down channel 22 in the recessed portion 202, so that the ventilation column 43 is exposed in the liquid-down channel 22. For the part of the ventilation column 43 located in the liquid-down channel 22, its outer side surface is not wrapped with a flexible material, and it is not easy for bubbles to be adsorbed on the surface of the flexible material support during movement due to the strong adsorption force of the flexible material, thus avoiding the risk of bubble jamming. The ventilation column 43 can also guide the bubble direction to make the bubbles enter the liquid storage cavity 101, and has a certain liquid guiding function for the liquid matrix. Bubbles will not gather near the liquid inlet 201 to affect the transfer of the liquid matrix to the atomization core 30, which can effectively improve the problem that bubbles are easily adsorbed on the surface of the support during the ventilation process of the laterally atomized atomizer 100 and thus cannot be guided into the liquid storage cavity 101.

[0053] In some embodiments, the atomizer 100 includes a base 40. The base 40 is at least partially disposed within the housing 10 and is connected to one end of the holding base 20 away from the liquid storage cavity 101. The air exchange column 43 is connected to the base 40. In other embodiments, the air exchange column 43 may also be disposed at other positions.

[0054] In some embodiments, the bottom wall of the holding base 20 is provided with a jack 203. The bottom wall of the holding base 20 is located on the side of the liquid inlet 201 away from the liquid storage cavity 101. The air exchange column 43 passes through the jack 203, and one end of the air exchange column 43 close to the liquid storage cavity 101 extends into the liquid passage 22 within the recess 202. Refer to Figure 4 , Figure 5 , Figures 7 to 10 , in some embodiments, the part of the air exchange column 43 extending into the liquid passage 22 abuts against the first side wall 204. Specifically, the part of the air exchange column 43 extending into the liquid passage 22 abuts against the surface of the first side wall 204 facing away from the atomization core 30, so that the part of the air exchange column 43 located in the liquid passage 22 can support the first side wall 204. Specifically, the material of the air exchange column 43 may include hard materials such as plastics, and the holding base 20 is a flexible material. For example, the holding base 20 is a flexible soft rubber material such as silica gel, rubber or thermoplastic elastomer (TPE). Since the atomization core 30 is disposed within the accommodation cavity 21 and is in contact with the first side wall 204, the air exchange column 43 supports the first side wall 204, thereby enabling the atomization core 30 to be in closer contact with the first side wall 204, which is more conducive to the sealing of the first side wall 204 to the atomization core 30, preventing the problem of leakage of the liquid matrix from the gap between the first side wall 204 and the atomization core 30 due to insufficient contact between the atomization core 30 and the first side wall 204, and avoiding waste of the liquid matrix.

[0055] Further, in a preferred embodiment, the part of the air exchange column 43 extending into the liquid passage 22 straddles the liquid inlet 201, which is more conducive to the air entering from the air exchange passage 23 into the liquid passage 22 to avoid the liquid inlet 201 and enter the liquid storage cavity 101, preventing bubbles from accumulating at the liquid inlet 201 and affecting the transfer of the liquid matrix to the atomization core 30, and more effectively avoiding the risk of air bubbles getting stuck during the air exchange process of the atomizer 100, ensuring smooth liquid flow. Specifically, refer to Figure 4 , Figure 5 , Figures 7 to 9, in some embodiments, the air exchange column 43 is arranged parallel to the central axis L1 of the atomizer 100, and a jack 203 for the air exchange column 43 to pass through is provided on the base 20, and the surface of the jack 203 close to the accommodation cavity 21 is flush with the outer surface of the first side wall 204. That is, the part of the air exchange column 43 passing through the jack 203 and located in the liquid supply channel 22 in the recess 202 is arranged such that the surface close to the first side wall 204 fits with the outer surface of the first side wall 204, that is, the surface of the first side wall 204 facing away from the atomization core 30. The contact area between the air exchange column 43 and the first side wall 204 is larger, and the supporting effect of the air exchange column 43 on the first side wall 204 is stronger, which is more convenient for the part of the air exchange column 43 located in the liquid supply channel 22 to support the first side wall 204. Moreover, since the air exchange column 43 is arranged parallel to the central axis L1 of the atomizer 100, it is also more convenient to assemble the base 20 and the air exchange column 43.

[0056] In other embodiments, the air exchange column 43 may also be arranged obliquely to the central axis L1 of the atomizer 100. The part of the air exchange column 43 located in the liquid supply channel 22 may only partially contact the first side wall 204 to support the first side wall 204 by the air exchange column 43; the surface of the jack 203 close to the accommodation cavity 21 may also be spaced from the outer surface of the first side wall 204. The part of the air exchange column 43 located in the liquid supply channel 22 may also not contact the first side wall 204. Specifically, the air exchange column 43 may be spaced from the first side wall 204, that is, the air exchange column 43 may not support the first side wall 204 and only ventilate the liquid storage cavity 101.

[0057] See Figure 4 , Figure 5 , Figures 7 to 9, in a specific embodiment, the orthographic projection of the air exchange column 43 on the liquid absorption surface 311 of the atomization core 30 is located at the central position in the length direction of the liquid absorption surface 311. Specifically, the atomization core 30 is in a rectangular shape, the liquid absorption surface 311 of the atomization core 30 is arranged facing the liquid inlet 201 of the holding base 20, the length direction of the liquid absorption surface 311 is perpendicular to the central axis L1 of the atomizer 100, and the air exchange column 43 is arranged corresponding to the symmetry axis of the liquid absorption surface 311 of the atomization core 30 in the length direction. It can be understood that by arranging the air exchange column 43 corresponding to the central position in the length direction of the liquid absorption surface 311, and the part of the air exchange column 43 located in the liquid downflow channel 22 within the recess 202 abuts against the first side wall 204, so that in the length direction of the liquid absorption surface 311 of the atomization core 30, the first side walls 204 on both sides of the air exchange column 43 can achieve good contact sealing with the liquid absorption surface 311 of the atomization core 30, which can make the supporting effect of the air exchange column 43 on the first side wall 204 more uniform, and the sealing effect between the first side walls 204 on both sides of the air exchange column 43 and the atomization core 30 is also more uniform, ensuring sealing consistency; at the same time, the air exchange column 43 is located in the middle of the liquid downflow channel 22, which is also beneficial to better realizing the air exchange function of the liquid storage cavity 101.

[0058] In other embodiments, the orthographic projection of the air exchange column 43 on the liquid absorption surface 311 of the atomization core 30 can also be set to deviate from the central position in the length direction of the liquid absorption surface 311, that is, the air exchange column 43 can be set to deviate from the symmetry axis of the liquid absorption surface 311 of the atomization core 30 in the length direction, as long as it can perform air exchange on the liquid storage cavity 101 and can achieve the supporting effect on the first side wall 204.

[0059] In some embodiments, the air exchange column 43 can cooperate with the inner surface of the jack 203 to form an air exchange channel 23. One end of the air exchange channel 23 communicates with the liquid storage cavity 101, and the other end communicates with the external atmosphere, so as to realize the air exchange function of the liquid storage cavity 101 through the air exchange channel 23, balance the air pressure in the liquid storage cavity 101, and avoid the problem of dry burning of the atomization core 30 caused by unsmooth liquid downflow due to unbalanced air pressure in the liquid storage cavity 101.

[0060] Specifically, in some embodiments, a ventilation groove 430 may be provided on the outer side surface of the ventilation column 43. The ventilation groove 430 and the inner surface of the jack 203 cooperate to form a ventilation channel 23, thereby inputting external gas into the liquid storage cavity 101 to balance the air pressure in the liquid storage cavity 101. Optionally, the ventilation groove 430 has a suitable width or depth dimension to form a capillary effect. The ventilation column 43 is made of a rigid material such as plastic, etc., so as to keep the intake cross-sectional area of the ventilation channel 23 substantially stable. Due to the capillary action, the ventilation groove 430 can prevent the liquid matrix in the liquid storage cavity 101 from leaking through the ventilation groove 430 to a certain extent. At the same time, a small amount of liquid matrix from the liquid storage cavity 101 can be maintained in the ventilation groove 430. Only when the negative pressure in the liquid storage cavity 101 reaches a certain level, the air in the atomization cavity 211 can enter the liquid storage cavity 101 through the ventilation channel 23 under the drive of the internal and external pressure difference, thereby reducing the negative pressure inside the liquid storage cavity 101.

[0061] Among them, the number of the ventilation grooves 430 can be set to one or multiple, and the shape of the ventilation grooves 430 can be set to any shape. For example, the ventilation groove 430 can be a straight-through groove provided on the outer side surface of the ventilation column 43, or a curved groove, which can be set according to needs. One end of the ventilation groove 430 extends to the end surface of the ventilation column 43 away from the base 40, and the other end is communicated with the external atmosphere, so that both ends of the ventilation channel 23 are communicated with the liquid storage cavity 101 and the external atmosphere respectively.

[0062] Specifically, as Figure 4 、 Figure 5 、 Figures 7 to 10 , two ventilation grooves 430 are provided on the outer side surface of the ventilation column 43, and both of the two ventilation grooves 430 are straight-through grooves. Setting two ventilation grooves 430 can improve the ventilation efficiency. The port of the ventilation groove 430 close to the liquid storage cavity 101 is located on the side of the liquid inlet 201 away from the liquid absorption surface 311, and there is a distance between it and the liquid absorption surface 311. Specifically, the port of the ventilation groove 430 close to the liquid storage cavity 101 extends to the end surface of the ventilation column 43 away from the base 40, and the port of the ventilation groove 430 close to the liquid storage cavity 101 is higher than the liquid absorption surface 311. The ventilation bubbles generated by the air supplemented into the liquid storage cavity 101 from the outside will escape in the direction away from the liquid absorption surface 311, which can prevent the bubbles escaping from the port of the ventilation groove 430 close to the liquid storage cavity 101 from gathering near the liquid absorption surface 311 and hindering liquid absorption.

[0063] In some other embodiments, an air exchange groove 430 may also be provided on the inner surface of the jack 203, that is, the air exchange groove 430 is formed on the flexible material. One end of the air exchange groove 430 extends into the liquid storage cavity 101, and an air exchange channel 23 is formed by the cooperation of the outer side surface of the air exchange column 43 and the air exchange groove 430 on the inner surface of the jack 203, so as to realize air exchange for the liquid storage cavity 101. Similarly, one or more air exchange grooves 430 may be provided on the inner surface of the jack 203, and the shape of the air exchange groove 430 may also be set arbitrarily.

[0064] In some other embodiments, at least part of the space may be provided between the outer side surface of the air exchange column 43 and the inner surface of the jack 203, and an air exchange channel 23 is formed by the gap between the outer side surface of the air exchange column 43 and the inner surface of the jack 203. One end of the gap communicates with the liquid storage cavity 101, and the other end communicates with the external atmosphere, so as to exchange air for the liquid storage cavity 101.

[0065] In some other embodiments, the air exchange channel 23 may also include an air guiding through hole passing through the side wall of the receiving cavity 21. One end of the air guiding through hole communicates with the liquid storage cavity 101, and the other end of the air guiding through hole communicates with the external atmosphere to allow air to enter the liquid storage cavity 101. Optionally, the air guiding through hole may have a capillary structure.

[0066] In other embodiments, the atomizer 100 may also include a plurality of air exchange channels 23, and the plurality of air exchange channels 23 may include any one or more of the above-mentioned air exchange channels 23. For example, the atomizer 100 includes two air exchange channels 23, one of which is formed by the cooperation of the air exchange groove 430 on the outer side surface of the air exchange column 43 and the inner surface of the jack 203, and the other air exchange channel 23 is formed by the cooperation of the air exchange groove 430 on the inner surface of the jack 203 and the outer side surface of the air exchange column 43, which can be designed according to needs. It can be understood that setting a plurality of air exchange channels 23 can improve the air exchange efficiency of the atomizer 100, improve the bubble discharging effect, and reduce the risk of bubble jamming.

[0067] In some embodiments, the air exchange groove 430 provided on the side surface of the air exchange column 43 may be used as an air guiding groove. The air guiding groove includes a first part located in the jack 203 and a second part located in the liquid feeding channel 22, and the first part and the second part are in communication with each other. The first part can be used to form the air exchange channel 23, and the second part can be used to guide bubbles to avoid the problem of bubble jamming at the liquid absorption surface 311 of the atomization core 30, which affects the liquid absorption effect of the liquid absorption surface 311 of the atomization core 30, and further causes the problem of dry burning of the atomization core 30. More preferably, the air guiding groove extends along the longitudinal direction of the air exchange column 43 to the top, which can guide the bubbles to the top of the air exchange column 43, so as to cross the liquid inlet 201 and enter the liquid storage cavity 101, avoiding the accumulation of bubbles at the liquid inlet 201 and affecting the liquid feeding effect.

[0068] The atomizing core 30 further includes an atomizing surface 312 which is disposed opposite to the liquid absorbing surface 311, and the atomizing surface 312 and the accommodating cavity 21 of the holding base 20 cooperate to form an atomizing cavity 211. Specifically, the atomizing core 30 includes a porous matrix 31 having air permeability and a heating element 32 bonded to the porous matrix 31. The porous matrix 31 can be made of a hard capillary structure such as porous ceramic, porous glass ceramic or porous glass. In the embodiment, the porous matrix 31 can be generally in but not limited to a block structure. According to the usage situation, the liquid absorbing surface 311 and the atomizing surface 312 are oppositely disposed on the porous matrix 31 along the transverse direction of the atomizer 100, that is, the direction perpendicular to the central axis L1 of the atomizer 100, and the porous matrix 31 is installed in the accommodating cavity 21 with the orientation such that the liquid absorbing surface 311 is parallel to the central axis L1. The liquid absorbing surface 311 is used to absorb the liquid matrix, and the heating element 32 is bonded to the atomizing surface 312 to heat and atomize the liquid matrix.

[0069] As Figures 4 to 6 shown, in a specific embodiment, the porous matrix 31 is in a rectangular shape, both the atomizing surface 312 and the liquid absorbing surface 311 are rectangular planes, and the atomizing surface 312 and the liquid absorbing surface 311 are parallel to each other. That is, the atomizing core 30 is disposed in the accommodating cavity 21 of the holding base 20, the liquid absorbing surface 311 and the atomizing surface 312 are respectively parallel to the central axis L1 of the atomizer 100, and the atomizing surface 312 of the atomizing core 30 and the inner side wall surface of the holding base 20 cooperate to form the atomizing cavity 211. The liquid absorbing surface 311 of the atomizing core 30 absorbs the liquid matrix, and the liquid matrix is conducted to the atomizing surface 312 through the pores inside the atomizing core 30. The heating element 32 on the atomizing surface 312 heats and atomizes the liquid matrix to generate aerosol under the energized condition. After the aerosol is released, it is stored in the atomizing cavity 211 formed by the cooperation of the atomizing surface 312 and the inner side wall surface of the holding base 20. The atomizing cavity 211 can be all or a part of the accommodating cavity 21. An air outlet hole 29 is provided at one end of the holding base 20 away from the base 40. An air outlet pipe 102 is provided inside the housing 10. One end of the air outlet hole 29 is communicated with the air outlet pipe 102, and the other end is communicated with the accommodating cavity 21. Specifically, one end of the air outlet pipe 102 is inserted into the air outlet hole 29 so that the air outlet pipe 102 is communicated with the accommodating cavity 21. More specifically, the air outlet pipe 102 is communicated with the atomizing cavity 211. The aerosol generated by atomizing the atomizing core 30 flows from the atomizing cavity 211 to the air outlet pipe 102 and is finally introduced into the suction port through the air outlet pipe 102 for the user to inhale. In other embodiments, the atomizing surface 312 can also be disposed obliquely to the central axis L1 of the atomizer 100.

[0070] In some embodiments, the heating element 32 is made of stainless steel, nickel-chromium alloy, iron-chromium-aluminum alloy, titanium metal, etc. Preferably, it is formed on the atomization surface 312 by mixing a raw material powder with conductivity and a printing aid into a slurry, and then printing and sintering it according to a suitable pattern, so that all or most of its surface is closely combined with the atomization surface 312, having effects such as high atomization efficiency, less heat loss, prevention of dry burning or greatly reducing dry burning. Optionally, the heating element 32 adopts various structural forms. The heating element 32 can be a sheet-shaped heating element with a specific pattern formed on the atomization surface 312, or other forms such as a heating mesh, a disc-shaped heating element formed by helically winding a heating wire, a heating film, etc.; for example, the specific pattern can be a serpentine shape.

[0071] See Figure 4 , Figure 5 , Figures 7 to 9 , in some embodiments, the holding base 20 includes a main body portion 24 and a liquid guiding portion 25 that are connected to each other. The receiving cavity 21 and the liquid inlet 201 are both provided in the main body portion 24. Among them, the liquid inlet 201 is provided on the side wall of the main body portion 24. The liquid guiding portion 25 includes a guiding surface 251 facing the liquid storage cavity 101. In a specific embodiment, the guiding surface 251 is the surface of the liquid guiding portion 25 facing the liquid storage cavity 101, and at least a part of the guiding surface 251 is inclined with respect to the central axis L1 of the atomizer 100. Along the direction of the central axis L1 of the atomizer 100, the guiding surface 251 has a first end 252 and a second end 253. The first end 252 is higher than the second end 253, and the second end 253 is close to the liquid inlet 201. The guiding surface 251 is used to guide the liquid matrix in the liquid storage cavity 101 to the liquid inlet 201. It can be understood that by setting the holding base 20 to include the liquid guiding portion 25, the liquid guiding portion 25 includes the guiding surface 251 facing the liquid storage cavity 101, by setting at least a part of the guiding surface 251 to be inclined with respect to the central axis L1 of the atomizer 100, and the heights of the two ends of the guiding surface 251 are different, the liquid matrix can be drained by the guiding surface 251. Even when the liquid matrix in the liquid storage cavity 101 is less, the liquid inlet of the atomizer 100 is inclined or facing upward, the liquid matrix in the liquid storage cavity 101 can still flow to the position of the liquid inlet 201 under the guiding action of the guiding surface 251, so as to ensure smooth liquid supply, improve the utilization rate of the liquid matrix, avoid dry burning of the atomization core 30, and solve the problem of poor liquid supply of the laterally atomizing atomizer 100 in the related art.

[0072] Specifically, see Figure 4 , Figure 5 , Figures 7 to 9The recessed portion 202 is disposed on the side wall of the main body 24, and the second end 253 of the guiding surface 251 of the liquid guiding portion 25 is connected to the first side wall 204, that is, the lower end of the guiding surface 251 is connected to the first side wall 204 provided with the liquid inlet 201, and the guiding surface 251 of the liquid guiding portion 25 defines a partial boundary of the liquid storage cavity 101, so that the liquid matrix in the liquid storage cavity 101 is more easily guided by the guiding surface 251 to the recessed portion 202 and then enters the liquid inlet 201.

[0073] In some embodiments, the guide surface 251 of the liquid guide portion 25 may include a curved surface, for example, the guide surface 251 may be a curved surface in its entirety or in part. In other embodiments, the guide surface 251 may also include a plane, for example, the guide surface 251 may be a plane in its entirety or in part. The guide surface 251 is inclined to the central axis L1 of the atomizer 100, and guides the liquid matrix from the first end 252 of the guide surface 251 to the second end 253, and then to the position of the liquid inlet 201, so as to be easily absorbed by the liquid absorption surface 311 of the atomizer core 30, thereby preventing the liquid matrix from flowing down unsmoothly.

[0074] See also Figures 7 to 9 In some embodiments, a first sealing ring 26 is disposed on the outer side of the holding base 20. The first sealing ring 26 is disposed around the outer wall of the main body 24. The first sealing ring 26 includes a first ring portion 261, a second ring portion 262 and two connecting portions 263 that are connected to each other. The first ring portion 261 and the second ring portion 262 are arranged at intervals along the longitudinal direction of the holding base 20, and the two connecting portions 263 are connected between the first ring portion 261 and the second ring portion 262. The first ring portion 261 is disposed on a portion of the outer wall of the main body 24 adjacent to the recessed portion 202, and the second ring portion 262 is disposed on a portion of the outer wall of the main body 24 away from the recessed portion 202. Specifically, the first ring portion 261 is correspondingly disposed on a portion of the outer wall of the main body 24 on the side where the recessed portion 202 is located, and is located on the side of the recessed portion 202 away from the liquid storage chamber 101. The second ring-shaped portion 262 is correspondingly arranged on a part of the outer wall surface of the main body 24 on the side opposite to the recessed portion 202, and is located on the side of the liquid inlet 201 close to the liquid guide portion 25. The connecting portion 263 is connected between the first ring-shaped portion 261 and the second ring-shaped portion 262, and extends in a direction parallel to the central axis L1. The two connecting portions 263 are correspondingly arranged on opposite sides of the recessed portion 202. By arranging the first sealing ring 26 on the outer side of the retaining base 20, the liquid storage chamber 101 can be sealed. The first ring-shaped portion 261, the second ring-shaped portion 262 and the two connecting portions 263 of the first sealing ring 26 are specifically arranged at the above positions, respectively, and the surrounding of the recessed portion 202 and the position of the retaining base 20 close to the liquid storage chamber 101 can be sealed, so that the sealing performance between the inner surface of the housing 10 and the retaining base 20 is stronger, and the leakage of the liquid matrix is ​​more effectively avoided.

[0075] Further, referring to Figures 7 to 9 , in some embodiments, a second sealing ring 27 is further provided on the outer side wall surface of the holding base 20. The second sealing ring 27 is disposed around the outer side wall surface of the main body portion 24 and is located on the side of the first ring portion 261 away from the liquid guiding portion 25. In a specific embodiment, the second sealing ring 27 is in an annular shape. By providing the second sealing ring 27 on one side of the first ring portion 261, better sealing can be achieved between the holding base 20 and the inner surface of the housing 10, and the sealing effect is better. In other embodiments, the first sealing ring 26 and the second sealing ring 27 may not be provided on the outer side surface of the holding base 20, or only one of the first sealing ring 26 and the second sealing ring 27 may be provided, and the first sealing ring 26 and the second sealing ring 27 may also be provided in other shapes.

[0076] Since the holding base 20 is made of a flexible material, at least part of the holding base 20 can provide a seal between the liquid storage cavity 101 and the atomization core 30. Referring to Figure 4 、 Figure 5 、 Figures 7 to 10 , the base 40 includes a mounting portion 41 and an annular flange 42 connected to one end of the mounting portion 41 close to the holding base 20. An annular groove 28 is formed on the side of the holding base 20 facing the base 40. The annular flange 42 is inserted into the annular groove 28 of the holding base 20, thereby realizing the connection between the base 40 and the holding base 20 and fixing the mounting portion 41 to the housing 10.

[0077] Specifically, an air inlet cavity 44 is formed by surrounding the mounting portion 41 of the base 40 and the bottom wall of the holding base 20. The air inlet cavity 44 is communicated with the receiving cavity 21 of the holding base 20. An air inlet column 45 is provided on the surface of the mounting portion 41 close to the holding base 20. One end of the air inlet column 45 is communicated with the air inlet cavity 44, and the other end is communicated with the external atmosphere. After the external gas enters the air inlet cavity 44 through the air inlet column 45, part of the gas enters the receiving cavity 21 through the air inlet cavity 44, thereby carrying the aerosol generated by heating and atomizing by the atomizing surface 312 of the atomization core 30 out of the atomization cavity 211, and then flowing to the air outlet pipe 102 and finally being inhaled by the user.

[0078] In some embodiments, a plurality of capillary grooves 46 are respectively distributed on the partition surface 241 provided at the bottom of the holding base 20 and on the surface of the mounting portion 41 of the base 40 close to the holding base 20, for adsorbing and storing a small amount of liquid matrix, so as to adsorb the liquid matrix condensed or leaked from the atomization cavity 211 on the inner wall of the air inlet cavity 44, and avoid the liquid matrix flowing out of the atomizer 100 from the air inlet column 45.

[0079] In some embodiments, one end of the air exchange channel 23 away from the liquid storage cavity 101 communicates with the air inlet cavity 44, so that part of the gas entering the air inlet cavity 44 can enter the liquid storage cavity 101 through the air exchange channel 23 to balance the air pressure in the liquid storage cavity 101 and avoid the problem that the liquid supply is blocked due to the imbalance of the air pressure in the liquid storage cavity 101, which further leads to insufficient liquid supply to the atomization core 30 and dry burning. As Figure 10 shown, in a specific embodiment, one end of the air exchange groove 430 on the air exchange column 43 close to the mounting portion 41 extends into the air inlet cavity 44, so that one end of the air exchange channel 23 communicates with the air inlet cavity 44, facilitating the external gas to enter the air exchange channel 23 through the port at one end of the air exchange groove 430 close to the mounting portion 41, and then entering the liquid storage cavity 101 through the air exchange channel 23.

[0080] Specifically, in some embodiments, the air inlet column 45 of the base 40, the receiving cavity 21 of the holding base 20 and the air outlet hole 29 are coaxially arranged. More preferably, the air inlet column 45, the atomization cavity 211 and the air outlet hole 29 are coaxially arranged. The projections of the atomization core 30 and the air inlet column 45 in a plane perpendicular to the central axis L1 of the atomizer 100 do not overlap each other, so that the air flow channel from the air inlet column 45 to the air outlet hole 29 is a straight channel, which can prevent the air flow entering through the air inlet column 45 from being blocked by the atomization core 30 and reduce the dead zone of air flow.

[0081] As Figure 4 shown, R1 and R2 respectively show two air flow paths after the external air enters the atomizer 100 through the air inlet column 45. Among them, R1 represents the air flow path for the external air to export the aerosol stored in the atomization cavity 211 through the air outlet pipe 102, that is, the external air enters the air inlet cavity 44 along the axis of the atomizer 100 through the air inlet column 45, then enters the atomization cavity 211 to carry the aerosol, and finally is discharged from the suction port through the air outlet pipe 102 for the user to use. The straight-through air flow path can reduce the aerosol retention and thus improve the fog output efficiency. R2 represents the air flow path for the external air to enter the liquid storage cavity 101 through the air exchange channel 23. After the external air enters the air inlet cavity 44, it enters the air exchange channel 23 through the port at one end of the air exchange channel 23 close to the air inlet cavity 44, and finally enters the liquid storage cavity 101 from the port at one end of the air exchange channel 23 close to the liquid storage cavity 101.

[0082] The atomizer 100 also includes two conductive electrodes 50. Two electrode mounting holes 47 are provided on the base 40. The two electrode mounting holes 47 are respectively located on both sides of the air inlet column 45. The two conductive electrodes 50 are respectively arranged in the electrode mounting holes 47 in a one-to-one correspondence to avoid interference of the conductive electrodes 50 with the atomization chamber 211. Specifically, the conductive electrode 50 is parallel to the central axis L1 of the atomizer 100. One end of the conductive electrode 50 is electrically connected to the electrical connection terminal of the power supply assembly 200, and the other end extends into the receiving chamber 21 to abut against the heating element 32 on the atomization surface 312 of the atomization core 30, and the atomization core 30 is abutted against the surface of the first side wall 204 away from the ventilation column 43, so that the atomization core 30 is electrically connected to the power supply assembly 200, thereby heating the atomized liquid matrix to generate an aerosol under power-on conditions. Furthermore, in some embodiments, an opening (not shown) is provided on one side of the retaining base 20 away from the recessed portion 202 , and the opening is used to install the atomizer core 30 into the receiving cavity 21 , which simplifies the structure and helps to improve assembly efficiency.

[0083] The above descriptions are merely embodiments of the present application and are not intended to 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, it includes: a housing defining a central axis; a holding base disposed within the housing and cooperating with the housing to form a liquid storage cavity for storing a liquid matrix; the holding base has a receiving cavity, and the side wall of the holding base has a recess, and the recess cooperates with the housing to form a liquid downflow channel; the recess defines a first side wall between the receiving cavity and the liquid downflow channel, and a liquid inlet is provided on the first side wall; an atomization core disposed within the receiving cavity; the atomization core has a liquid absorption surface for receiving the liquid matrix, and the liquid absorption surface is disposed along a direction parallel to the central axis; the liquid absorption surface is communicated with the liquid downflow channel through the liquid inlet; a ventilation column, the ventilation column passes through the bottom wall of the holding base, and a ventilation channel for supplementing air to the liquid storage cavity is defined between the ventilation column and the bottom wall of the holding base, wherein a part of the ventilation column extends into the liquid downflow channel within the recess.

2. The atomizer according to claim 1, characterized in that, the part of the ventilation column extending into the liquid downflow channel abuts against the surface of the first side wall facing away from the atomization core.

3. The atomizer according to claim 2, characterized in that, the part of the ventilation column extending into the liquid downflow channel straddles the liquid inlet.

4. The atomizer according to claim 3, characterized in that, the orthographic projection of the ventilation column on the liquid absorption surface is located at the central position in the length direction of the liquid absorption surface.

5. The atomizer according to claim 2, characterized in that, the bottom wall of the holding base is provided with a jack, and the ventilation column and the inner surface of the jack cooperate to form the ventilation channel, and one end of the ventilation channel communicates with the liquid storage cavity and the other end communicates with the external atmosphere.

6. The atomizer according to claim 5, characterized in that, a ventilation groove is provided on the outer side surface of the ventilation column, and the ventilation groove and the inner surface of the jack cooperate to form the ventilation channel; and / or, a ventilation groove is provided on the inner surface of the jack, and the outer side surface of the ventilation column and the ventilation groove cooperate to form the ventilation channel; and / or, the outer side surface of the ventilation column and the inner surface of the jack are at least partially spaced apart to cooperate to form the ventilation channel.

7. The atomizer according to claim 5, characterized in that, the atomizer further includes a base connected to the holding base, the base includes a mounting portion and an annular flange connected to one end of the mounting portion close to the holding base, and an annular groove is provided on the side of the holding base facing the base, and the annular flange is inserted into the annular groove; an air inlet cavity is formed between the mounting portion and the bottom wall of the holding base, and the air inlet cavity communicates with the receiving cavity; an air inlet column is provided on the surface of the mounting portion close to the holding base, one end of the air inlet column communicates with the air inlet cavity, and the other end communicates with the external atmosphere; the ventilation column is connected to the surface of the mounting portion close to the holding base, and the ventilation channel communicates with the air inlet cavity; An air outlet is arranged at one end of the retaining base away from the base, an air outlet pipe is arranged inside the shell, one end of the air outlet is communicated with the air outlet pipe, and the other end of the air outlet is communicated with the accommodating cavity.

8. The atomizer according to claim 7, It is characterized in that The air inlet column, the receiving cavity and the air outlet are coaxially arranged.

9. The atomizer according to claim 5, It is characterized in that At least one air guide groove is provided on the side of the ventilation column, and the air guide groove includes a first part located in the insertion hole and a second part located in the lower liquid channel, and the first part is connected to the second part.

10. The atomizer according to claim 9, It is characterized in that The air guide groove extends along the longitudinal direction of the ventilation column all the way to the top end.

11. The atomizer according to claim 1, It is characterized in that The atomizing core further comprises an atomizing surface, the atomizing surface is arranged opposite to the liquid absorbing surface, and the atomizing surface cooperates with the receiving cavity to form an atomizing cavity.

12. The atomizer according to claim 11, It is characterized in that The atomizer further includes a conductive electrode extending into the accommodating cavity in parallel with the central axis, and the conductive electrode contacts the atomizing surface, thereby making the atomizing core abut against a side surface of the first side wall away from the ventilation column.

13. The atomizer according to claim 12, It is characterized in that An opening for installing the atomizer core into the receiving cavity is provided on a side of the retaining base away from the recessed portion.

14. The atomizer according to any one of claims 1 to 13, It is characterized in that The ventilation column is made of a hard material, the retaining base is made of a flexible material, and the retaining base at least partially provides a seal between the liquid storage chamber and the atomization core.

15. An electronic atomization device, It is characterized in that include: An atomizer, which is an atomizer as claimed in any one of claims 1 to 14; A power supply assembly is electrically connected to the atomizer and is used to provide electrical energy to the atomizer.

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