Atomizer and electronic atomization device

Abstract

The utility model relates to an atomizer and an electronic atomization device.The atomizer comprises an atomization shell and an atomization assembly at least partially contained in the atomization shell, a liquid storage cavity is formed in the atomization shell, the atomization assembly is arranged below the liquid storage cavity, and an atomization core and a liquid discharging channel communicating the atomization core with the liquid storage cavity are arranged in the atomization assembly; the face, communicated with the liquid discharging channel, of the atomization core is a liquid suction face, the atomization assembly further comprises an air exchange channel communicated with the liquid storage cavity and the outside atmosphere, the air exchange channel comprises a first air exchange opening, the first air exchange opening is formed in the liquid storage cavity or the liquid discharging channel, and the first air exchange opening is higher than the liquid suction face. The height of the first scavenging port is higher than that of the liquid suction surface, that is, the position of the first scavenging port is closer to the liquid storage cavity than that of the liquid suction section surface, under the condition of transverse placement, gas bubbles entering from the first scavenging port can be directly sucked into the liquid storage cavity, the situation that the bubbles are clamped at the liquid suction surface to hinder normal liquid feeding of a liquid matrix is avoided, and the risk of dry burning and film breaking is reduced.

Description

Technical Field

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

[0002] An electronic atomization device generally includes an atomizer and a power supply device. Among them, the power supply device is used to supply power to the atomizer. The atomizer includes a liquid storage cavity and an atomization component. The liquid storage cavity is used to store a liquid matrix, and the atomization component is used to heat and atomize the liquid matrix after being powered on to generate an aerosol that can be absorbed.

[0003] In order to balance the pressure in the liquid storage cavity, the atomizer is generally provided with a ventilation channel. The common problem of existing atomizers is that the incoming gas bubbles will get stuck at the position of the atomization core, preventing the normal liquid flow of the liquid matrix, which may lead to the situation of dry burning and film breakage. Summary of the Utility Model

[0004] The technical problem to be solved by this application is to provide an improved atomizer and an electronic atomization device having the atomizer in view of the above-mentioned defects of the prior art, which can avoid the incoming bubbles from getting stuck at the position of the atomization core and reduce the risk of dry burning and film breakage.

[0005] The technical solution adopted by this application to solve its technical problems is to construct an atomizer, including an atomization housing, and an atomization component at least partially received in the atomization housing,

[0006] A liquid storage cavity is provided in the atomization housing, and the atomization component is arranged below the liquid storage cavity,

[0007] An atomization core is provided in the atomization component, and a liquid flow channel connecting the atomization core and the liquid storage cavity. The surface of the atomization core connected to the liquid flow channel is the liquid absorption surface,

[0008] The atomization component further includes a ventilation channel communicating the liquid storage cavity and the outside atmosphere. The ventilation channel includes a first ventilation port for communicating with the liquid storage cavity or the liquid flow channel, and the height of the first ventilation port is higher than the height of the liquid absorption surface.

[0009] In some embodiments, the lower edge of the first ventilation port is higher than the upper edge of the liquid absorption surface.

[0010] In some embodiments, an air outlet channel is provided on the atomization housing, and an atomization cavity communicating with the air outlet channel is provided on the atomization component,

[0011] The atomization core is arranged on the interface between the liquid flow channel and the atomization cavity. The surface of the atomization core facing the atomization cavity is the atomization surface, and the atomization surface is parallel to the central axis of the air outlet channel.

[0012] In some embodiments, the liquid supply channel includes a first channel section arranged vertically and a second channel section arranged horizontally,

[0013] and the first channel section and the second channel section form an L-shaped channel.

[0014] In some embodiments, the atomization assembly includes an atomization base,

[0015] the air exchange channel includes a second air exchange port, the second air exchange port is opened on the atomization base and the second air exchange port communicates with the atomization cavity,

[0016] the air exchange channel further includes a first capillary groove connecting the first air exchange port and the second air exchange port.

[0017] In some embodiments, the area of the second air exchange port is less than 2.5 mm 2 .

[0018] In some embodiments, a second capillary groove is arranged in the atomization cavity, and the second capillary groove communicates with the air exchange channel.

[0019] In some embodiments, the atomization base includes a heating base and a heating cover, and the second capillary groove is arranged on the heating base,

[0020] or / and, the second capillary groove is arranged on the heating cover.

[0021] In some embodiments, the height of the second air exchange port is higher than the bottom of the atomization cavity.

[0022] This application also provides an electronic atomization device, which includes the atomizer described above, and further includes a battery assembly, and the battery assembly is connected to one end of the atomizer and is electrically connected to the atomizer.

[0023] Implementing this application has at least the following beneficial effects: In this application, the height of the first air exchange port is higher than the height of the liquid absorption surface, that is, the position of the first air exchange port is closer to the liquid storage cavity than the liquid absorption section surface. In the case of being placed horizontally, the gas bubbles entering from the first air exchange port will be directly sucked into the liquid storage cavity, avoiding the bubbles being stuck at the liquid absorption surface and preventing the normal liquid supply of the liquid matrix, and reducing the risk of dry burning and film breakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The following will further illustrate this application in conjunction with the drawings. In the drawings:

[0025] Figure 1 is a schematic perspective view of an electronic atomization device in some embodiments of this application;

[0026] Figure 2 is Figure 1Exploded structural schematic diagram of the electronic atomization device shown;

[0027] Figure 3 is Figure 1 One of the cross-sectional schematic diagrams of the atomizer in;

[0028] Figure 4 is Figure 1 Another cross-sectional schematic diagram of the atomizer in;

[0029] Figure 5 is Figure 4 Enlarged structural schematic diagram at position A in;

[0030] Figure 6 Structural schematic diagram of the heating base and the heating cover;

[0031] Figure 7 is Figure 6 Top view of the heating base shown;

[0032] Figure 8 is Figure 6 Back structural schematic diagram of the heating cover shown;

[0033] Figure 9 is Figure 6 Structural schematic diagram of the air exchange channel on the heating cover shown.

[0034] Explanation of the reference numerals in the attached drawings:

[0035] Electronic atomization device 10,

[0036] Atomizer 100, atomization outer shell 110, liquid storage cavity 111, air outlet channel 112, heating base 120, atomization cavity 121, second capillary groove 122, heating element 130, electrode assembly 131, insulating sleeve 140, liquid absorption body 150, heating cover 160, liquid down-channel 161, first air exchange port 162, second air exchange port 163, first capillary groove 164, silicone sleeve 170,

[0037] Power supply device 200, power supply outer shell 210, battery holder 220. Detailed implementation manners

[0038] In order to have a clearer understanding of the technical features, purposes, and effects of the present application, the detailed implementation manners of the present application will now be described in detail with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0039] In the description of the present application, it should be understood that the orientation or positional relationships indicated by the terms "longitudinal", "lateral", "upper", "lower", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings or the orientation or positional relationships in which the products of the present application are customarily placed during use. These are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation on the present application.

[0040] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such 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 and clearly defined.

[0041] In the present application, unless otherwise clearly specified and limited, the terms "mounted", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0042] In the present application, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above" the second feature may be that the first feature is directly above or obliquely above the second feature, or only indicates that the first feature has a higher horizontal height than the second feature. The first feature being "below" the second feature may be that the first feature is directly below or obliquely below the second feature, or only indicates that the first feature has a lower horizontal height than the second feature.

[0043] Figure 1 Some embodiments of the electronic atomization device 10 in the present application are shown. The electronic atomization device 10 includes an atomizer 100 and a power supply device 200 that is cooperatively connected to the atomizer 100. The atomizer 100 is used to accommodate a liquid matrix and heat and atomize the liquid matrix after being powered on to generate an aerosol, and the liquid matrix includes, but is not limited to, materials for medical, health preservation, health, and beauty purposes. The power supply device 200 includes a power supply housing 210, a battery and a control circuit that are at least partially accommodated inside the power supply housing 210. The battery is used to supply power to the atomizer 100, and the control circuit is used to control the atomizer 100 to generate heat.

[0044] In some embodiments, the atomizer 100 and the power supply device 200 can both be generally elliptical columnar, and the two can be mechanically and electrically connected together along the axial direction. Further, the atomizer 100 and the power supply device 200 can be connected together by detachable means such as magnetic attraction connection, screw connection, snap connection, etc. It can be understood that in other embodiments, the atomizer 100 and the power supply device 200 can also be connected together by non-detachable means. In addition, the cross-sectional shape of the atomizer 100 and / or the power supply device 200 is not limited to being elliptical, and it can also be other shapes such as circular, racetrack-shaped, or rectangular.

[0045] As Figures 2 to 4 shown, the atomizer 100 includes an atomizing housing 110 and an atomizing assembly at least partially received in the lower part of the atomizing housing 110. Among them, a liquid storage cavity 111 for storing a liquid matrix is formed in the atomizing housing 110, and an air outlet passage 112 for outputting an aerosol is isolated from the liquid storage cavity 111. The atomizing assembly is disposed at the lower end opening of the atomizing housing 110 to block the liquid storage cavity 111. The atomizing assembly includes an atomizing seat and an atomizing core, and the atomizing core is disposed in the atomizing seat. In this embodiment, the atomizing seat includes a heating seat 120 and a heating cover 160 that match each other. The heating cover 160 and the heating seat 120 are connected together by at least one of plugging, snap connection, and bolt connection. An atomizing cavity 121 is formed between the heating seat 120 and the heating cover 160. The atomizing cavity 121 communicates with the air outlet passage 112, and an air inlet passage communicating with the atomizing cavity 121 is also provided on the heating seat 120; an atomizing core is disposed between the heating seat 120 and the heating cover 160. One side of the atomizing core is in liquid conduction communication with the liquid storage cavity 111, and the other side of the atomizing core facing away from the liquid storage cavity 111 is located in the atomizing cavity 121, that is, the atomizing core separates the liquid storage cavity 111 and the atomizing cavity 121. In other embodiments, the atomizing seat can also be a single integral accessory, the atomizing cavity 121 is formed inside the atomizing seat, and the atomizing core is also disposed inside the atomizing seat and separates the liquid storage cavity 111 and the atomizing cavity 121. After being powered on, the atomizing core heats and atomizes the liquid matrix in the liquid storage cavity 111 to form an aerosol, and the aerosol is discharged into the atomizing cavity 121. When the user sucks, the external gas input into the atomizing cavity 121 from the air inlet passage carries the aerosol and outputs through the air outlet passage 112.

[0046] The atomization core includes a liquid absorbent 150 and a heating element 130 in contact with the liquid absorbent 150. In some embodiments, the liquid absorbent 150 can be made of porous materials such as porous ceramics and absorbent cotton, so that a large number of micropores are formed inside the liquid absorbent 150 and it has a certain porosity. Through the capillary action of the micropores, the liquid absorbent 150 can absorb and cache the liquid matrix. The liquid absorbent 150 has an atomization surface and a liquid absorption surface. The liquid absorption surface is communicated with the liquid storage cavity 111, and the atomization surface is exposed in the atomization cavity 121 and is in contact with the heating element 130. The liquid absorbent 150 absorbs the liquid matrix from the liquid storage cavity 111 through the liquid absorption surface and conducts the liquid matrix to the atomization surface. After being powered on, the heating element 130 heats and atomizes the liquid matrix adsorbed by the liquid absorbent 150.

[0047] As Figure 2 , Figure 3 shown, in this embodiment, the liquid absorbent 150 can be generally in the shape of a rectangular plate and can be arranged in the vertical direction. Both the atomization surface and the liquid absorption surface are arranged in the vertical direction, and they can be two surfaces of the liquid absorbent 150 oppositely arranged in the thickness direction. Further, the air outlet channel 112 is also arranged in the vertical direction, and the central axis of the atomization surface of the liquid absorbent 150 is parallel to the air outlet channel 112. In other embodiments, the liquid absorbent 150 is not limited to being in the shape of a rectangular plate, and it can also be in other shapes such as columnar, tubular or bowl-shaped. In addition, the atomization surface and / or the liquid absorption surface can also be arranged horizontally, or can be inclined at a certain angle with respect to the vertical direction or the horizontal direction.

[0048] In some embodiments, the atomization core may further include an insulating sleeve 140. The insulating sleeve 140 can be made of insulating elastic high-temperature-resistant materials such as silicone. The liquid absorbent 150 abuts against the heating cover 160 or the heating base 120 via the insulating sleeve 140. The insulating sleeve 140 can be in a frame shape, and the four edges of the liquid absorption surface of the liquid absorbent 150 can abut against the insulating sleeve 140 through a liquid guide. On the one hand, the insulating sleeve 140 can prevent liquid leakage, and on the other hand, it can protect the liquid absorbent 150 from being crushed by extrusion during installation. It can be understood that in other embodiments, the atomization core may not include the insulating sleeve 140.

[0049] As Figure 4 , Figure 5As shown, in this embodiment, a liquid downward channel 161 is formed in the heating cover 160. It can be understood that in other embodiments, the liquid downward channel 161 can also be formed in the integrated heating base 120. The liquid downward channel 161 connects the liquid suction surface of the liquid absorber 150 with the liquid storage cavity 111, and the liquid matrix in the liquid storage cavity 111 is guided to the liquid suction surface of the liquid absorber 150 via the liquid downward channel 161. In some embodiments, the liquid downward channel 161 includes a vertically arranged first channel section and a horizontally arranged second channel section, and the first channel section and the second channel section form an L-shaped channel. It is easy to understand that with the L-shaped channel for the liquid downward channel 161, the arrangement position of the atomization core can be more flexible. For example, the atomization core can be arranged below the air outlet channel 112 so that the atomization surface of the liquid absorber 150 is located on the central axis of the air outlet channel 112. In addition, in other embodiments, the liquid downward channel 161 can also adopt a straight channel, an arc channel, etc.

[0050] As Figure 5 , Figure 6 and Figure 9 shown, in this embodiment, an air exchange channel is provided on the atomization base. The air exchange channel includes a first air exchange port 162 communicating with the liquid storage cavity 111, a second air exchange port 163 opened on the atomization cavity 121, and a first capillary groove 164 connecting the first air exchange port 162 and the second air exchange port 163. In some embodiments, the first air exchange port 162 can directly communicate with the liquid storage cavity 111, or communicate with the liquid storage cavity 111 through the liquid downward channel 161, that is, one end of the air exchange channel is connected to the liquid storage cavity 111; the other end of the air exchange channel is connected to the atomization cavity 121 through the second air exchange port 163 and further communicates with the outside atmosphere. The air exchange channel is used to balance the pressure in the liquid storage cavity 111 and solve the problem that the liquid cannot flow down stably due to excessive negative pressure in the liquid storage cavity 111. Further, in the air exchange channel of the present application, the area of the second air exchange port 163 is less than 2.5 mm 2 , and the cross-sectional area of the first capillary groove 164 is less than or equal to the area of the second air exchange port 163, so that the air exchange channel has a certain capillary force, can continuously suck back the excess liquid matrix in the atomization cavity 121, and send it into the liquid storage cavity 111 through the first air exchange port 162 for recycling, thereby avoiding excessive accumulation of the liquid matrix in the atomization cavity 121 from blocking the air exchange channel, ensuring smooth air exchange, and reducing the risk of dry burning and film breakage. It can be understood that in other embodiments, the air exchange channel can also be formed between the inner wall surface of the atomization housing 110 and the outer wall surface of the atomization base.

[0051] In this embodiment, the shapes of the first air exchange port 162 and the second air exchange port 163 are both rectangular or quasi-rectangular, which is convenient for processing. Among them, the length of the second air exchange port 163 is not greater than 1.5 mm, and the height of the second air exchange port 163 is less than or equal to 1.5 mm to ensure that the area of the second air exchange port 163 is less than 2.5 mm2 to endow it with capillary force. Understandably, in other embodiments, the shapes of the first air vent 162 and the second air vent 163 are not limited to rectangles or rectangle-like shapes and can be designed in any shape.

[0052] As Figure 5 shown, in some embodiments, the first air vent 162 is opened on the inner wall of the liquid-down channel 161, and the height of the first air vent 162 is higher than the height of the liquid-absorbing surface of the liquid absorber 150. It should be noted that the statement "the height of the first air vent 162 is higher than the height of the liquid-absorbing surface of the liquid absorber 150" means that the height of the lowermost lower edge in the first air vent 162 is higher than the upper edge of the top of the liquid-absorbing surface of the liquid absorber 150. Since the position of the first air vent 162 is closer to the liquid storage cavity 111 than the liquid-absorbing surface of the liquid absorber 150, when the electronic atomization device 10 is placed horizontally, the gas bubbles entering from the first air vent 162 will be directly sucked into the liquid storage cavity 111, preventing the bubbles from getting stuck at the liquid-absorbing surface and interfering with the normal liquid-down of the liquid matrix, and reducing the risk of dry burning and film breakage.

[0053] In some embodiments, the height difference between the lower edge of the first air vent 162 and the upper edge of the liquid-absorbing surface of the liquid absorber 150 is h, and h is greater than 0.5 mm. In this positional relationship, it can be further ensured that the gas bubbles entering from the first air vent 162 will not get stuck at the liquid-absorbing surface.

[0054] In some embodiments, to prevent the liquid matrix accumulated in the atomization cavity 121 from blocking the second air vent 163 and affecting the air exchange process, the height of the second air vent 163 is set to be higher than the bottom of the atomization cavity 121.

[0055] In some embodiments, at least one first capillary groove 164 is provided. As Figure 5 , Figure 6 and Figure 9 shown, in this embodiment, two first capillary grooves 164 are provided. Understandably, in other embodiments, one, three, four or other numbers of first capillary grooves 164 can also be provided. Further, in some embodiments, when more than two first capillary grooves 164 are provided, the multiple first capillary grooves 164 are symmetrically arranged.

[0056] In some embodiments, the cross-sectional area of the first capillary groove 164 should be greater than or equal to 0.18 mm 2, to avoid blockage caused by setting the cross-sectional area of the first capillary groove 164 too small, and ensure the smooth progress of air exchange and back suction. Further, in some embodiments, the cross-sectional shape of the first capillary groove 164 is rectangular or quasi-rectangular. Among them, the length of the long side of the cross-section of the first capillary groove 164 is not less than 0.6 mm, and the length of the short side of the cross-section of the first capillary groove 164 is not less than 0.3 mm. It can be understood that in other embodiments, the cross-sectional shape of the first capillary groove 164 is not limited to rectangular or quasi-rectangular, and it can be designed into any shape.

[0057] In some embodiments, the first capillary groove 164 can be formed by a depression on the outer surface of the heating base 120 or the heating cover 160. As Figure 9 shown is the structural diagram when the first capillary groove 164 is arranged on the outer surface of the heating cover 160. Further, as Figure 2 and Figure 4 shown, a silica gel sleeve 170 is sleeved outside the heating cover 160. The silica gel sleeve 170 surrounds the first air exchange port 162, the second air exchange port 163 and the first capillary groove 164, ensuring the sealing of the air exchange channel, and thus ensuring its normal function of balancing air pressure and recovering the liquid matrix. It can be understood that in other embodiments, the formation structure of the air exchange channel is not limited to the above specific embodiments. For example, part or all of the air exchange channel can also be formed by a depression on the inner wall surface of the atomization housing 110, or can be formed by the common depression of the inner wall surface of the atomization housing 110 and the outer wall surface of the heating cover 160.

[0058] As Figure 4 shown, in some embodiments, a number of second capillary grooves 122 are arranged in the atomization cavity 121, and the second capillary grooves 122 communicate with the second air exchange port 163. Among them, in this embodiment, the second capillary grooves 122 are separated by a number of equally spaced inserted plates, and the gaps between adjacent inserted plates form the second capillary grooves 122, and the cross-sectional area of each second capillary groove 122 is set to be less than or equal to 0.5 mm 2 , so as to make it have capillary force. When the excess liquid matrix in the atomization cavity 121 flows to the second capillary grooves 122, the second capillary grooves 122 attract and gather the excess liquid matrix in the atomization cavity 121 through capillary force, and then send it back to the liquid storage cavity 111 through the air exchange channel. By setting the second capillary grooves 122, the efficiency of recovering the excess liquid matrix in the atomization cavity 121 can be improved. Further, the second capillary grooves 122 can also contact and conduct the atomization core to directly recover the liquid matrix flowing out from the atomization core.

[0059] As Figures 6 to 8As shown, in this embodiment, the atomization base includes a heating base 120 and a heating cover 160. The second capillary groove 122 is provided on both the heating base 120 and the heating cover 160. Among them, the second capillary groove 122 provided on the heating base 120 communicates with the bottom of the atomization chamber 121 and the second air exchange port 163, and the second capillary groove 122 provided on the heating cover 160 communicates with the atomization core and the second air exchange port 163. And the second capillary groove 122 on the heating base 120 is in one-to-one correspondence and fits with the second capillary groove 122 on the heating cover 160. In other embodiments, the second capillary groove 122 may be provided only on the heating base 120, or the second capillary groove 122 may also be provided only on the heating cover 160. No matter which way the second capillary groove 122 is provided, it ultimately has the same effect of attracting and aggregating the liquid matrix.

[0060] As Figure 7 shown, in some embodiments, in order to make the liquid matrix in the atomization chamber 121 flow more easily to the second capillary groove 122, the bottom of the heating base 120 is set to incline downward in the direction of the second capillary groove 122, and the liquid matrix in the atomization chamber 121 is more likely to flow to the second capillary groove 122 under the action of gravity.

[0061] In some embodiments, the atomization assembly may further include two electrode assemblies 131 provided on the heating base 120. The two electrode assemblies 131 are respectively electrically connected to the two poles of the heating element 130. Each electrode assembly 131 may include an electrode post and / or an electrode connection piece. One end of the electrode assembly 131 can abut against the heating element 130 and conduct electricity, and the other end of the electrode assembly 131 is at least partially exposed outside the bottom surface of the heating base 120, which is convenient for connecting and conducting with the power supply device 200.

[0062] In some embodiments, the power supply device 200 is provided with a battery bracket 220 for installing and fixing the battery. The battery bracket 220 is located inside the power supply housing 210. The control circuit can be installed on at least one of the inner wall of the power supply housing 210, the heating base 120 or the battery bracket 220. Further, in some embodiments, the battery bracket 220 can be integrally provided with the heating base 120, and the control circuit is provided on the heating base 120, such as Figure 2 and Figure 6 shown. Adopting this structure can reduce the number of parts and lower the manufacturing cost.

[0063] It can be understood that the above technical features can be used in any combination without limitation.

[0064] The above embodiments only illustrate the specific implementation manners of the present application. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the patent scope of the present application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, the above technical features can be freely combined, and several deformations and improvements can also be made, which all fall within the protection scope of the present application. Therefore, all equivalent transformations and modifications made to the scope of the claims of the present application shall fall within the scope covered by the claims of the present application.

Claims

1. An atomizer, characterized in that: The invention comprises an atomizing housing and an atomizing assembly at least partially accommodated in the atomizing housing. The atomizing housing is provided with a liquid storage cavity, and the atomizing assembly is arranged below the liquid storage cavity. The atomizing assembly is provided with an atomizing core and a lower liquid channel connecting the atomizing core and the liquid storage chamber. The side of the atomizing core connected to the lower liquid channel is a liquid absorbing surface. The atomization assembly also includes a ventilation channel connecting the liquid storage chamber and the outside atmosphere, and the ventilation channel includes a first ventilation port for connecting the liquid storage chamber or the lower liquid channel, and the height of the first ventilation port is higher than the height of the liquid suction surface.

2. The atomizer according to claim 1, characterized in that The lower edge of the first ventilation port is higher than the upper edge of the liquid suction surface.

3. The atomizer according to claim 1, characterized in that The atomizing housing is provided with an air outlet passage, and the atomizing assembly is provided with an atomizing cavity connected to the air outlet passage. The atomizing core is arranged between the lower liquid channel and the atomizing chamber, and a side of the atomizing core facing the atomizing chamber is an atomizing surface, and the atomizing surface is parallel to the central axis of the air outlet channel.

4. The atomizer according to claim 1, characterized in that The lower liquid channel includes a first channel section arranged vertically and a second channel section arranged horizontally. The first channel section and the second channel section form an L-shaped channel.

5. The atomizer according to claim 3, characterized in that The atomizing assembly includes an atomizing seat, the ventilation channel includes a second ventilation port, the second ventilation port is disposed on the atomizing seat and the second ventilation port is connected to the atomizing chamber, The ventilation channel further includes a first capillary groove communicating with the first ventilation port and the second ventilation port.

6. The atomizer according to claim 5, characterized in that The area of ​​the second ventilation port is less than 2.5 mm 2 .

7. The atomizer according to claim 5, characterized in that A second capillary groove is arranged in the atomizing chamber, and the second capillary groove is communicated with the ventilation channel.

8. The atomizer according to claim 7, characterized in that The atomizer seat includes a heating seat and a heating cover, and the second capillary groove is arranged on the heating seat. Or / and, the second capillary groove is arranged on the heating cover.

9. The atomizer according to claim 5, characterized in that The height of the second ventilation port is higher than the bottom of the atomization chamber.

10. An electronic atomization device, characterized in that: comprising an atomizer as claimed in any one of claims 1 to 9, The electronic atomization device further comprises a battery assembly, which is matched with one end of the atomizer and is electrically connected to the atomizer.

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