Atomizer and electronic atomization device

Abstract

The utility model relates to an atomizer and an electronic atomization device. The atomizer comprises a liquid storage cavity used for storing an aerosol generating substrate; the atomization assembly is provided with an atomization core, a heating top cover and a heating base, the atomization core is arranged between the heating top cover and the heating base, the heating top cover is provided with a liquid inlet channel, and the liquid inlet channel is communicated with the atomization core and the liquid storage cavity; a ventilation channel is formed in the heating base and / or between the interior of the heating base and the heating top cover, one end of the ventilation channel is communicated with the liquid storage cavity through the liquid inlet channel, and the other end of the ventilation channel is communicated with the outside atmosphere. When the atomizer and the electronic atomization device are placed laterally, the air exchange opening, communicated with the liquid inlet channel, of the air exchange channel can be farther away from bubbles floating above the aerosol generation substrate, the probability that the bubbles are communicated with external air or slightly communicated with the external air through the air exchange channel is reduced, and then liquid leakage of the air exchange channel is reduced.

Description

Technical Field

[0001] The present application relates to the field of atomization technology, and in particular to an atomizer and an electronic atomization device. Background Art

[0002] In an electronic atomizer device that uses a liquid aerosol-generating substrate to generate aerosol, as the aerosol-generating substrate is consumed and negative pressure is generated, a ventilation channel needs to be provided to replenish the outside air into the oil tank of the electronic atomizer device. However, in existing electronic atomizer devices, the ventilation channel is usually designed on the outer side wall of the heating seat. Once the electronic atomizer device is placed sideways, the aerosol-generating substrate is prone to leaking from the ventilation channel. Utility Model Content

[0003] Based on this, it is necessary to provide an atomizer and an electronic atomization device that can reduce the leakage of aerosol-generating matrix from the ventilation channel when the electronic atomization device is placed sideways, in order to address the problem that the aerosol-generating matrix is ​​prone to leakage from the ventilation channel when the electronic atomization device is placed sideways.

[0004] An atomizer, comprising:

[0005] a liquid storage chamber for storing an aerosol-generating substrate; and

[0006] The atomizer assembly comprises an atomizer core, a heating top cover and a heating base, wherein the atomizer core is arranged between the heating top cover and the heating base, and the heating top cover has a liquid inlet channel, which connects the atomizer core and the liquid storage cavity;

[0007] A ventilation channel is formed inside the heating base and / or between the inside of the heating base and the heating top cover. One end of the ventilation channel is connected to the liquid storage cavity through the liquid inlet channel, and the other end is connected to the outside atmosphere.

[0008] In one of the embodiments, the heating top cover has a through hole connected to the liquid inlet channel, and the ventilation channel is connected to the liquid inlet channel through the through hole.

[0009] In one embodiment, the heating base has a ventilation portion, the ventilation portion extends into the through hole and has at least a portion of the ventilation channel and / or forms at least a portion of the ventilation channel between the heating base and the heating top cover.

[0010] In one embodiment, the ventilation portion is provided with a through hole and at least partially protrudes from the liquid inlet channel, and the portion of the ventilation portion protruding from the liquid inlet channel has at least a portion of the ventilation channel.

[0011] In one embodiment, a ventilation groove is provided on the side wall of the ventilation portion, and the ventilation groove forms at least a part of the ventilation channel.

[0012] In one embodiment, the ventilation portion and the through hole are clearance-fitted.

[0013] In one embodiment, the atomizer assembly further includes a sealing member, which is disposed between the heating base and the heating top cover, and a side of the heating top cover facing away from the heating base forms a partial cavity wall of the liquid storage cavity.

[0014] In one embodiment, the heating top cover and the sealing member are conformally fitted.

[0015] In one embodiment, the ventilation channels include at least two, and the at least two ventilation channels are symmetrically distributed along the center of the atomization assembly.

[0016] In another aspect of the present application, an electronic atomization device is provided, comprising the atomizer in any of the above embodiments.

[0017] The above-mentioned atomizer and electronic atomization device have a ventilation channel formed by arranging the ventilation channel inside the heating base and / or between the inside of the heating base and the heating top cover, and one end of the ventilation channel is connected with the liquid storage chamber through the liquid inlet channel. Therefore, when the atomizer and the electronic atomization device are placed on the side, the ventilation port connecting the ventilation channel with the liquid inlet channel can be further away from the bubbles floating above the aerosol generating matrix, reducing the probability of the bubbles being connected or micro-connected with the outside air through the ventilation channel, thereby reducing leakage of the ventilation channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of an atomizer in one or more embodiments of the present application.

[0019] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure of the atomizer shown.

[0020] Figure 3 for Figure 1 A schematic structural diagram of part of the structure of the atomizer shown.

[0021] Figure 4 for Figure 1 A schematic diagram of the structure of the heating base in the atomizer shown.

[0022] Description of reference numerals:

[0023] Atomizer 100, liquid storage chamber 10, atomizing assembly 20, atomizing core 21, heating top cover 22, liquid inlet channel 221, through hole 222, connecting port 223, heating base 23, ventilation channel 231, air inlet hole 232, ventilation part 233, ventilation groove 2331, groove 234, connecting groove 2341, atomizing chamber 24, sealing member 25, shell 30, air outlet channel 31. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of 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 violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0025] In the description of the present application, it should be understood that if the terms "center", "up", "down", "top", "bottom", "inside", "outside", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0026] In addition, in the description of the present application, if the term "plurality" appears, "plurality" means at least two, for example, two, three, etc., unless otherwise clearly and specifically defined.

[0027] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0028] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0029] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0030] Figure 1 FIG. 1 shows a schematic diagram of the structure of an atomizer in an embodiment of the present application. Figure 2 Shows Figure 1 Schematic diagram of the cross-sectional structure of the atomizer shown.

[0031] See also Figure 1 and Figure 2 , an atomizer 100 provided in one embodiment of the present application is used to atomize an aerosol generating matrix to form an aerosol that can be inhaled by a user. The aerosol generating matrix can be a liquid matrix such as a medicine liquid, a plant leaf liquid, etc. The atomizer 100 atomizes the aerosol generating matrix in a manner such as resistance heating atomization, infrared heating atomization, microwave heating atomization, electromagnetic heating atomization, etc. The atomizer 100 of the present application is applied to an electronic atomization device, and the electronic atomization device may further include a power supply assembly for powering the atomizer 100 and controlling the operation of the atomizer 100, so that the atomizer 100 can atomize the aerosol generating matrix to form an aerosol.

[0032] The nebulizer 100 includes an atomizing assembly 20 and a housing 30. The atomizing assembly 20 is a component for atomizing an aerosol-generating substrate, and the housing 30 is a component for protecting the internal structure of the nebulizer 100. The liquid storage chamber 10 is usually defined by the housing 30 and the atomizing assembly 20 of the nebulizer 100, and the liquid storage chamber 10 is used to store the aerosol-generating substrate.

[0033] Specifically, the atomizer assembly 20 has an atomizer core 21, a heating top cover 22 and a heating base 23. The atomizer core 21 is disposed between the heating top cover 22 and the heating base 23. The heating top cover 22 has a liquid inlet channel 221, and the liquid inlet channel 221 connects the atomizer core 21 and the liquid storage chamber 10. The heating top cover 22 is disposed adjacent to the liquid storage chamber 10, and the aerosol generating substrate stored in the liquid storage chamber 10 can enter the atomizer core 21 through the liquid inlet channel 221, and then be atomized by the atomizer core 21 to generate an aerosol that can be inhaled by the user.

[0034] In the implementation manner of the present application, the atomizer core 21 can be specifically arranged in the accommodating cavity of the heating top cover 22. Of course, in other embodiments, the heating top cover 22 and the heating base 23 can jointly form an accommodating cavity to accommodate the atomizer core 21, or the heating base 23 can have an accommodating cavity to accommodate the atomizer core 21, which is not limited here.

[0035] The heating base 23 has a ventilation channel 231 inside, one end of the ventilation channel 231 is connected to the liquid storage chamber 10 through the liquid inlet channel 221, and the other end is connected to the outside atmosphere. Specifically, the ventilation channel 231 is connected to the outside atmosphere through the air inlet hole 232 provided on the heating base 23. The air inlet hole 232 can not only connect the ventilation channel 231, but also connect the atomizing core 21, so that the aerosol generated by the atomized aerosol generating matrix of the atomizing core 21 is discharged to the air outlet channel 31 of the shell 30 along the air flow, and then inhaled by the user. Among them, the atomizing core 21 can form an atomizing chamber 24 with the heating base 23, and the atomizing chamber 24 is connected to the air inlet hole 232.

[0036] It can be understood that the interior of the heating base 23 has a ventilation channel 231, which means that the interior of the heating base 23 has a structure to form the ventilation channel 231, and the interior of the heating base 23 refers to the interior relative to the periphery of the heating base 23. For example, the interior of the heating base 23 has some hole structures, and these hole structures can form the ventilation channel 231.

[0037] The function of the ventilation channel 231 is that when the air pressure in the liquid storage chamber 10 is unbalanced, the outside air enters the liquid storage chamber 10 through the ventilation channel 231 to balance the air pressure in the liquid storage chamber 10. For example, when the user draws on the electronic atomization device, negative pressure is generated in the atomization chamber 24 where the atomization core 21 is located, and the atomization core 21 is connected to the liquid storage chamber 10 through the liquid inlet channel 221. Therefore, the aerosol generating matrix enters the liquid inlet channel 221 under the action of negative pressure, and is then atomized by the atomization core 21. Since the aerosol generating matrix in the liquid storage chamber 10 is consumed, the liquid storage chamber 10 generates negative pressure, so that the outside air can enter the liquid storage chamber 10 through the ventilation channel 231 to balance the pressure in the liquid storage chamber 10.

[0038] In the embodiment of the present application, the ventilation channel 231 is arranged inside the heating base 23, and can also play a role in reducing leakage when the device is placed sideways. Specifically, in the related art, the ventilation channel is usually arranged on the outer side wall of the heating base. When the atomizer is placed sideways, the pressure difference between the ventilation channel located above and the ventilation channel located below is relatively large, and the ventilation channel above is easy to contact with the bubbles floating above the aerosol generating matrix and conduct or slightly conduct. Therefore, the negative pressure system balance in the atomizer will be broken, causing the outside air to enter the oil storage chamber of the atomizer through the ventilation channel above, while the aerosol generating matrix in the liquid storage chamber leaks through the ventilation channel below. The negative pressure of the liquid storage chamber constantly seeks the balance of the core, and the cycle causes the aerosol generating matrix to continuously leak out through the ventilation channel below, and finally leak to the outside of the atomizer.

[0039] In the embodiment of the present application, the atomizer 100 has the ventilation channel 231 disposed inside the heating base 23, and one end of the ventilation channel 231 is connected to the liquid storage chamber 10 via the liquid inlet channel 221. Therefore, when the atomizer 100 is placed on its side, the ventilation port connecting the ventilation channel 231 and the liquid inlet channel 221 can be further away from the bubbles floating above the aerosol generating matrix, thereby reducing the probability of the bubbles being connected or slightly connected to the outside air through the ventilation channel 231, thereby reducing the leakage of the ventilation channel 231.

[0040] In another embodiment of the present application, a ventilation channel 231 is formed between the interior of the heating base 23 and the heating top cover 22 .

[0041] It can be understood that the ventilation channels 23 formed between the interior of the heating base 23 and the heating top cover 22 mean that the ventilation channels 23 are defined between the internal structure of the heating base 23 and the heating top cover 22, and these ventilation channels 23 can be formed by the existence of some spacing spaces between the internal structure of the heating base 23 and the heating top cover 22 for air circulation.

[0042] In other embodiments of the present application, a ventilation channel 231 is formed inside the heating base 23 and between the inside of the heating base 23 and the heating top cover 22 .

[0043] The above two embodiments can also achieve that when the nebulizer 100 is placed on its side, the ventilation port connecting the ventilation channel 231 and the liquid inlet channel 221 can be further away from the bubbles floating above the aerosol generating matrix, thereby reducing the probability of the bubbles being connected or slightly connected to the external air through the ventilation channel 231, thereby reducing the leakage of the ventilation channel 231.

[0044] Please continue reading Figure 2 and Figure 3Specifically in the embodiment of the present application, the heating top cover 22 has a through hole 222 communicating with the liquid inlet channel 221 , and the ventilation channel 231 is communicated with the liquid inlet channel 221 via the through hole 222 .

[0045] The method of providing the through hole 222 on the heating top cover 22 to communicate with the ventilation channel 231 is direct and simple, which can simplify the manufacturing process of the heating top cover 22 and improve the ventilation reliability of the ventilation channel 231 .

[0046] In addition, one end of the liquid inlet channel 221 has a connecting port 223 connected to the atomizer core 21, and the aerosol generating substrate entering the liquid inlet channel 221 from the liquid storage chamber 10 can enter the atomizer core 21 through the connecting port 223, and then be atomized by the atomizer core 21. Among them, the connecting port 223 is separated from the through hole 222. In other words, although the liquid inlet channel 221 is connected to the atomizer core 21 and the ventilation channel 231, the liquid inlet path of the aerosol generating substrate entering the atomizer core 21 from the liquid inlet channel 221 is different from the ventilation path of the outside air entering the liquid inlet channel 221 from the ventilation channel 231, and the two do not interfere with each other.

[0047] Specifically, a communication port 223 is formed on the side wall of the liquid inlet channel 221 , and a through hole 222 is formed on the bottom wall of the liquid inlet channel 221 .

[0048] Furthermore, the heating base 23 has a ventilation portion 233, the ventilation portion 233 extends into the through hole 222, and has at least a portion of the ventilation channel 231. In other embodiments, at least a portion of the ventilation channel 231 may be formed between the ventilation portion 233 and the heating top cover 22, or the ventilation portion 233 has at least a portion of the ventilation channel 231 and at least a portion of the ventilation channel 231 may be formed between the ventilation portion 233 and the heating top cover 22.

[0049] It should be noted that at least a portion of the ventilation channel 231 is formed between the ventilation portion 233 and the heating top cover 22 , and may include a space between the outer wall of the ventilation portion 233 and the inner wall of the through hole 222 to form a portion of the ventilation channel 231 .

[0050] By arranging the ventilation portion 233 to extend into the through hole 222 , the ventilation channel 231 can be closer to the liquid inlet channel 221 , thereby reducing air loss to other positions and facilitating ventilation efficiency.

[0051] Specifically, a ventilation groove 2331 is provided on the side wall of the ventilation portion 233, and the ventilation groove 2331 forms at least a part of the ventilation channel 231. The form of the ventilation groove 2331 is not limited to a rectangular groove, an arc groove, a V-shaped groove, etc.

[0052] By opening a ventilation groove 2331 on the side wall of the ventilation section 233, the structure of the ventilation channel 231 on the ventilation section 233 can be simplified. In addition, the aerosol generating matrix can also enter the ventilation groove 2331 to perform liquid sealing when the air pressure in the liquid storage chamber 10 is balanced, thereby reducing the risk of air entering the liquid storage chamber 10.

[0053] In some embodiments, the ventilation portion 233 is penetrated by the through hole 222 and at least partially protrudes from the liquid inlet channel 221 . The portion of the ventilation portion 233 protruding from the liquid inlet channel 221 has at least a portion of the ventilation channel 231 .

[0054] It has been found through testing that when the ventilation channel 231 of the ventilation portion 233 is penetrated by the through hole 222 and protrudes into the liquid inlet channel 221 for ventilation, the probability of bubbles being connected or slightly connected to the outside air through the ventilation channel 231 can be further reduced, thereby reducing liquid leakage in the ventilation channel 231.

[0055] In one embodiment of the present application, the ventilation groove 2331 extends from the top of the ventilation portion 233 to the root of the ventilation portion 233, so that the air can be guided to flow in the extension direction of the ventilation portion 233, thereby improving the reliability of ventilation.

[0056] In some embodiments, the ventilation portion 233 and the through hole 222 are clearance-matched.

[0057] It should be pointed out that the clearance fit cannot form part of the ventilation channel 231 in the embodiment of the present application. The outer wall of the ventilation portion 233 and the inner wall of the through hole 222 indicated in the above embodiment are spaced to form part of the ventilation channel 231, wherein the distance of the spacing should be greater than the size of the clearance.

[0058] By setting a clearance fit between the ventilation part 233 and the through hole 222, on the one hand, it is convenient for the ventilation part 233 to pass through the through hole 222, thereby reducing the difficulty of assembly; on the other hand, when the air pressure in the liquid storage chamber 10 is balanced, a liquid seal can be formed between the ventilation part 233 and the through hole 222, thereby reducing the risk of air entering the liquid storage chamber 10.

[0059] Specifically, when the ventilation groove 2331 is formed on the side wall of the ventilation portion 233 , other side wall portions of the ventilation portion 233 except the ventilation groove 2331 can form a liquid seal with the inner wall of the through hole 222 .

[0060] In one embodiment of the present application, the atomizer assembly 20 further includes a seal 25 , which is disposed between the heating base 23 and the heating top cover 22 , and the side of the heating top cover 22 facing away from the heating base 23 forms a partial cavity wall of the liquid storage cavity 10 .

[0061] The seal 25 can seal between the heating base 23 and the heating top cover 22 , and can prevent the aerosol generating substrate from flowing out from the gap between the heating base 23 and the heating top cover 22 and causing leakage.

[0062] In the related art, the seal is usually arranged on the side of the heating top cover facing away from the heating base to directly contact the aerosol generating matrix in the liquid storage chamber, and the seal 25 is usually a silicone member, which is more likely to adhere to bubbles, making it easier for bubbles to enter the ventilation channel. In the embodiment of the present application, since the seal 25 is between the heating base 23 and the heating top cover 22, and the side of the heating top cover 22 facing away from the heating base 23 forms part of the cavity wall of the liquid storage chamber 10, not only can the seal 25 be able to be away from the liquid storage chamber 10, but also the side of the heating top cover 22 facing away from the heating base 23 is in contact with the aerosol generating matrix of the liquid storage chamber 10, the bubbles are blocked by the heating top cover 22 and are not easy to adhere to the seal 25, and the bubbles are also easier to detach from the seal 25 and the heating top cover 22, further reducing the probability of the bubbles being connected or slightly connected to the outside air through the ventilation channel 231, thereby reducing the leakage of the ventilation channel 231.

[0063] In addition, when the ventilation groove 2331 of the ventilation part 233 performs liquid sealing when the air pressure in the liquid storage chamber 10 is balanced, the reliability of the liquid sealing is also improved because the bubbles are smoothly separated from the sealing member 25 and the heating top cover 22.

[0064] Optionally, the heating top cover 22 and the sealing member 25 are conformally fitted to each other.

[0065] By setting a contour fit between the heating top cover 22 and the sealing member 25, the heating top cover 22 can be fitted and covered following the shape of the sealing member 25, thereby preventing the bubbles from contacting the sealing member 25, further reducing the probability of the bubbles being connected or slightly connected to the outside air through the ventilation channel 231, thereby reducing liquid leakage in the ventilation channel 231.

[0066] Specifically, the heating top cover 22 is made of plastic. The heating top cover 22 made of plastic is easier to separate bubbles.

[0067] Combination Figure 4 In some embodiments, a groove 234 is provided inside the heating base 23, the ventilation portion 233 protrudes into the groove 234, and a portion of the sealing member 25 is sealed in the groove 234. The inner wall of the groove 234 has a connecting groove 2341, the connecting groove 2341 forms a part of the ventilation channel 231, and the connecting groove 2341 connects the ventilation groove 2331 with the outside atmosphere. Specifically, the connecting groove 2341 is connected to the outside atmosphere through the atomizing chamber 24 and the air inlet 232.

[0068] By providing the groove 234 and providing therein a connecting groove 2341 connecting the ventilation groove 2331 with the outside atmosphere, the ventilation path of the ventilation channel 231 can be bent, thereby extending the path of the ventilation channel 231 within a limited space, thereby increasing the difficulty of the aerosol generating matrix leaking outward through the ventilation channel 231.

[0069] In the embodiment of the present application, the ventilation channels 231 include at least two, and the at least two ventilation channels 231 are symmetrically distributed along the center of the atomizer assembly 20 .

[0070] By providing at least two ventilation channels 231 symmetrically distributed along the center of the atomizer assembly 20, on the one hand, air can be fully and evenly introduced into the liquid storage chamber 10; on the other hand, no matter which side the atomizer 100 is placed on, the ventilation channel 231 located above and the ventilation port connected to the liquid inlet channel 221 can be further away from the bubbles floating above the aerosol generating matrix, thereby reducing the probability of the bubbles being connected or slightly connected to the outside air through the ventilation channel 231, thereby reducing liquid leakage in the ventilation channel 231.

[0071] Based on the same inventive concept, an embodiment of the present application also provides an electronic atomization device, including the atomizer 100 in any of the above embodiments.

[0072] In the electronic atomization device in the embodiment of the present application, a ventilation channel 231 is formed by arranging the ventilation channel 231 inside the heating base 23 and / or between the inside of the heating base 23 and the heating top cover 22, and one end of the ventilation channel is connected with the liquid storage chamber 10 via the liquid inlet channel 221. Therefore, when the electronic atomization device is placed on its side, the ventilation port connecting the ventilation channel 231 and the liquid inlet channel 221 can be further away from the bubbles floating above the aerosol generating matrix, thereby reducing the probability of the bubbles being connected or micro-connected with the external air through the ventilation channel 231, thereby reducing the leakage of the ventilation channel 231.

[0073] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0074] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. An atomizer, characterized in that: include: A liquid storage chamber, used for storing an aerosol-generating matrix; as well as An atomizer assembly comprises an atomizer core, a heating top cover and a heating base, wherein the atomizer core is arranged between the heating top cover and the heating base, and the heating top cover has a liquid inlet channel, wherein the liquid inlet channel connects the atomizer core and the liquid storage chamber; A ventilation channel is formed inside the heating base and / or between the inside of the heating base and the heating top cover, one end of the ventilation channel is connected to the liquid storage cavity through the liquid inlet channel, and the other end is connected to the outside atmosphere.

2. The atomizer according to claim 1, characterized in that The heating top cover has a through hole connected to the liquid inlet channel, and the ventilation channel is connected to the liquid inlet channel through the through hole.

3. The atomizer according to claim 2, characterized in that The heating base has a ventilation portion, which extends into the through hole and has at least a portion of the ventilation channel and / or forms at least a portion of the ventilation channel with the heating top cover.

4. The atomizer according to claim 3, characterized in that The ventilation portion passes through the through hole and at least partially protrudes from the liquid inlet channel. The portion of the ventilation portion protruding from the liquid inlet channel has at least a portion of the ventilation channel.

5. The atomizer according to claim 3, characterized in that A ventilation groove is provided on the side wall of the ventilation portion, and the ventilation groove forms at least a part of the ventilation channel.

6. The atomizer according to claim 3, characterized in that The ventilation portion and the through hole are clearance-matched.

7. The atomizer according to any one of claims 1 to 6, characterized in that: The atomizing assembly further comprises a sealing member, which is arranged between the heating base and the heating top cover, and a side of the heating top cover facing away from the heating base forms a part of the cavity wall of the liquid storage cavity.

8. The atomizer according to claim 7, characterized in that The heating top cover and the sealing member are conformally fitted.

9. The atomizer according to any one of claims 1 to 6, characterized in that: The ventilation channels include at least two, and the at least two ventilation channels are symmetrically distributed along the center of the atomization assembly.

10. An electronic atomization device, characterized in that: Comprising an atomizer as described in any one of claims 1 to 9.

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