Atomizer and aerosol generating device

Abstract

The utility model provides an atomizer and an aerosol generating device, and belongs to the field of aerosol generating devices. The atomizer comprises a liquid storage assembly, an atomization assembly and two sealing plugs, a liquid storage bin, an air inlet channel and an air outlet channel are formed in the liquid storage assembly, an atomization channel is formed in the atomization assembly, and the two ends of the atomization channel communicate with the air inlet channel and the air outlet channel correspondingly; at least part of one sealing plug is located in the air inlet channel; and at least part of the other sealing plug is positioned in the air outlet channel. In the air inlet channel, the air outlet channel and the atomization channel, the absolute value of the difference between the volume of the air located between the two sealing plugs and the volume of the air in the liquid storage bin does not exceed a design threshold value, so that the air pressure in the atomization channel is close to the air pressure in the liquid storage bin; the possibility that the aerosol matrix in the liquid storage bin is squeezed into the atomization channel under the action of the air pressure difference between the atomization channel and the liquid storage bin is reduced, and therefore the situation that the aerosol matrix leaks to the air inlet channel and the air outlet channel is reduced or avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of aerosol generating devices, in particular to an atomizer and an aerosol generating device. BACKGROUND

[0002] Common aerosol generating devices include an atomizer. During operation, the atomizer is heated, causing aerosol substrate stored inside the atomizer to be atomized and discharged from the aerosol generating device.

[0003] The atomizer has an air inlet channel and an air outlet channel. Before leaving the factory, a sealing plug is arranged in the air inlet channel and the air outlet channel to seal them, so as to prevent foreign matter from entering the atomizer and prevent the aerosol substrate from leaking out. The sealing plug is removed by the user before use.

[0004] It is found through research that after the sealing plug is removed, aerosol substrate is found to leak into the air inlet channel and the air outlet channel, and even aerosol substrate may be carried out during the process of removing the sealing plug, affecting the normal use of the atomizer. INVENTION CONTENTS

[0005] The present application provides an atomizer and an aerosol generating device, which can reduce or avoid aerosol substrate leaking into the air inlet channel and the air outlet channel. The technical solution is as follows:

[0006] In a first aspect, the present application provides an atomizer, which includes a liquid storage assembly, an atomization assembly, and two sealing plugs. The liquid storage assembly forms a liquid storage chamber, an air inlet channel, and an air outlet channel. The liquid storage chamber contains aerosol substrate. The atomization assembly is located in the liquid storage assembly. The atomization assembly forms an atomization channel. One end of the atomization channel communicates with the air inlet channel, and the other end communicates with the air outlet channel.

[0007] At least part of one of the sealing plugs is located in the air inlet channel and sealingly cooperates with the air inlet channel. At least part of the other sealing plug is located in the air outlet channel and sealingly cooperates with the air outlet channel.

[0008] In the air inlet channel, the air outlet channel, and the atomization channel, the absolute value of the difference between the volume of air located between the two sealing plugs and the volume of air in the liquid storage chamber does not exceed a design threshold value.

[0009] In some examples, the design threshold value is 0-0.5 ml.

[0010] In some examples, the sealing plug includes a sealing plug body and n sealing ribs, where n≥2.

[0011] The sealing plug body has a first end and a second end. The first end is used to be inserted into the liquid storage assembly.

[0012] The sealing ribs are annular and surround the sealing plug body. The n sealing ribs are arranged along the length direction of the sealing plug body. The first m sealing ribs among the n sealing ribs have a notch, which connects the two sides of the sealing rib, and 1≤m

[0013] In some examples, at least one sealing rib of the sealing plug located in the air outlet channel is located in the atomization channel, and the at least one sealing rib is in sealing fit with the atomization channel.

[0014] In some examples, the sealing plug further comprises an outer flange, which is located at the second end of the sealing plug body and is in fit with the outer surface of the liquid storage assembly.

[0015] In some examples, the first end of the sealing plug body has a chamfer.

[0016] In some examples, the two sealing plugs comprise a first sealing plug and a second sealing plug. The first sealing plug is located in the air inlet channel, and the second sealing plug is located in the air outlet channel. The length of the second sealing plug is greater than that of the first sealing plug.

[0017] In some examples, the liquid storage assembly comprises an atomization cartridge housing, which comprises a main body part and a mouthpiece part connected to each other. The mouthpiece part forms the air outlet channel.

[0018] In some other examples, the atomizer further comprises a mouthpiece, which is detachably connected to the liquid storage assembly and is in communication with the air outlet channel.

[0019] In a second aspect, the embodiments of the present application further provide an aerosol generating device, which comprises a power supply assembly and any one of the atomizers of the first aspect. The power supply assembly is configured to supply power to the atomization assembly.

[0020] The technical solutions provided by the embodiments of the present application have at least the following beneficial effects:

[0021] By sealing the air inlet channel and the air outlet channel of the liquid storage assembly by the sealing plugs and by ensuring that the absolute value of the difference between the volume of the air in the atomization channel and the volume of the air in the liquid storage chamber of the liquid storage assembly is not more than a design threshold, the air pressure in the atomization channel is closer to the air pressure in the liquid storage chamber. The possibility of the aerosol substrate in the liquid storage chamber being squeezed into the atomization channel due to the pressure difference between the atomization channel and the liquid storage chamber is reduced, thereby reducing or avoiding the leakage of the aerosol substrate into the air inlet channel and the air outlet channel. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description only constitute some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative effort.

[0023] Figure 1 is a structural schematic diagram of an aerosol generating device provided by an embodiment of the present application;

[0024] Figure 2 is a structural schematic diagram of an atomizer provided by an embodiment of the present application;

[0025] Figure 3 is a structural schematic diagram of an atomizer provided by an embodiment of the present application;

[0026] Figure 4 is Figure 3 is a structural schematic diagram of an atomizer provided by an embodiment of the present application;

[0027] Figure 5 is a structural schematic diagram of a first sealing plug provided by an embodiment of the present application;

[0028] Figure 6 is a structural schematic diagram of a second sealing plug provided by an embodiment of the present application.

[0029] Reference signs:

[0030] Power supply assembly: 100, atomizer: 200, liquid storage assembly: 210, air inlet channel: 210a, air outlet channel: 210b, atomizer cartridge housing: 211, liquid storage cartridge: 211a, main body part: 2111, suction nozzle part: 2112, base: 212, oil absorption cotton: 213, atomization assembly: 220, atomization channel: 220a, support: 221, liquid guide: 222, heating element: 223, electrode: 2231, sealing plug: 300, sealing plug body: 301, chamfer: 301a, sealing rib: 302, notch: 302a, outer flange: 303, first sealing plug: 310, second sealing plug: 320. DETAILED DESCRIPTION

[0031] In the following description, specific details are set forth in order to provide a thorough understanding of embodiments of the present application. However, persons having ordinary skill in the art will readily understand that embodiments of the present application can be practiced without these specific details, and that the present application is not limited to the embodiments described. In other instances, detailed descriptions of well-known systems, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.

[0032] It should also be understood that the term "and / or" as used herein refers to a conjunction of one or more of the associated listed items and all possible combinations, and includes these combinations.

[0033] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0034] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0035] In addition, in the description of the present application and the appended claims, the terms "first", "second", "third", and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0036] In the present application, the reference "one embodiment" or "some embodiments" and the like means that the specific features, structures or characteristics described in connection with the embodiment are included in one or more embodiments of the present application. Therefore, the statements "in one embodiment", "in some embodiments", "in other some embodiments", "in further some embodiments" and the like appearing in different places in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized. The terms "include", "contain", "have" and their variants mean "include but not limited to", unless otherwise specifically emphasized. "Multiple" means two or more.

[0037] Figure 1 is a structural schematic diagram of an aerosol generating device provided by an embodiment of the present application, as shown in the figure, the aerosol generating device includes a power supply assembly 100 and an atomizer 200. The power supply assembly 100 is used to supply power to the atomizer 200. Figure 1

[0038] Figure 2 is a schematic diagram of the internal structure of an atomizer provided by an embodiment of the present application, as shown in the figure, the atomizer includes a power supply assembly 100 and an atomizer 200. The power supply assembly 100 is used to supply power to the atomizer 200. Figure 2 ​As shown, the atomizer 200 includes a liquid storage assembly 210 and an atomization assembly 220. The liquid storage assembly 210 includes an atomization cartridge housing 211. The liquid storage assembly 210 is located in the atomization cartridge housing 211, and the atomization cartridge housing 211 is used to store the aerosol substrate. The atomization assembly 220 is located in the liquid storage assembly 210, and the atomization assembly 220 is used to heat the aerosol substrate, and the atomization assembly 220 is formed with an atomization channel 220a.

[0039] The liquid storage assembly 210 can include the atomization cartridge housing 211, and an inside of the atomization cartridge housing 211 forms a liquid storage cartridge 211a used to contain the aerosol substrate. When the atomizer 200 is shipped, the liquid storage cartridge 211a is usually not completely filled with the aerosol substrate, but a certain amount of air is left.

[0040] In some examples, the liquid storage assembly 210 can further include a liquid storage member located in the liquid storage cartridge 211a, for example, the liquid storage member can be liquid storage cotton, and the liquid storage cotton is adsorbed / imbibed with the aerosol substrate.

[0041] The atomization assembly 220 is located in the atomization cartridge housing 211. As shown, Figure 2 The atomization assembly 220 includes a bracket 221, a liquid guide member 222, and a heating member 223. The bracket 221 forms the atomization channel 220a, and the liquid guide member 222 and the heating member 223 are located in the bracket 221. The material and structure of the heating member 223 are not limited as long as it can heat, and for example, the heating member 223 can include at least one of a heating net, a heating film, a heating wire, and a heating sheet.

[0042] The bracket 221 provides a space in the inside of the atomization cartridge housing 211 to accommodate the liquid guide member 222 and the heating member 223. The bracket 221 can be tubular, and the bracket 221 can have holes, slits, or the like on the tube wall to allow the aerosol substrate in the atomization cartridge housing 211 to enter the atomization channel 220a and be absorbed by the liquid guide member 222. The heating member 223 is used to heat the aerosol substrate in the liquid guide member 222 to vaporize the aerosol substrate.

[0043] The heating member 223 can be connected with an electrode 2231 exposed to the atomization cartridge housing 211. The power supply assembly 100 can have a power supply terminal that can be in electrical contact with the electrode 2231 exposed to the atomization cartridge housing 211, thereby supplying power to the atomizer 200.

[0044] The power supply assembly 100 is detachably connected with the atomizer 200. Since the power supply assembly 100 is detachably connected with the atomizer 200, the atomizer 200 can be conveniently replaced.

[0045] The liquid storage assembly 210 is formed with an air inlet passage 210a and an air outlet passage 210b. One end of the atomization passage 220a is in communication with the air inlet passage 210a, and the other end is in communication with the air outlet passage 210b. Before the atomizer leaves the factory, sealing plugs will be arranged in the air inlet passage 210a and the air outlet passage 210b to prevent foreign matter from entering the interior of the atomizer. However, during storage, transportation and other processes of the atomizer, the ambient environment may affect the atomizer, such as temperature changes, which may cause the air pressure in the liquid storage compartment 211a to rise. If the air pressure in the liquid storage compartment 211a is significantly greater than the air pressure in the atomization passage 220a, a part of the aerosol substrate may be squeezed into the atomization passage 220a and enter the air inlet passage 210a or the air outlet passage 210b. When the user removes the sealing plugs, these aerosol substrates will leak out, not only causing waste of the aerosol substrate, but also easily staining the user's clothes, seriously affecting the user experience.

[0046] Figure 3 FIG. 1 is a structural schematic diagram of an atomizer according to an embodiment of the present application. As shown in FIG. 1, the atomizer includes a liquid storage assembly 210, an atomization assembly 220, and two sealing plugs 300. Figure 3 FIG. 2 is a structural schematic diagram of the atomizer shown in FIG. 1. As shown in FIG. 2, the liquid storage assembly 210 is formed with a liquid storage compartment 211a, an air inlet passage 210a, and an air outlet passage 210b. The liquid storage compartment 211a contains aerosol substrate. Figure 4 FIG. 3 is a structural schematic diagram of the atomizer shown in FIG. 1. As shown in FIG. 3, the liquid storage assembly 210 is formed with a liquid storage compartment 211a, an air inlet passage 210a, and an air outlet passage 210b. The liquid storage compartment 211a contains aerosol substrate. Figure 3 FIG. 4 is a structural schematic diagram of the atomizer shown in FIG. 1. As shown in FIG. 4, the liquid storage assembly 210 is formed with a liquid storage compartment 211a, an air inlet passage 210a, and an air outlet passage 210b. The liquid storage compartment 211a contains aerosol substrate. Figure 4 As shown in FIG. 3, the liquid storage assembly 210 is formed with a liquid storage compartment 211a, an air inlet passage 210a, and an air outlet passage 210b. The liquid storage compartment 211a contains aerosol substrate. Since the aerosol substrate does not fill the liquid storage compartment 211a, there is also a certain amount of air in the liquid storage compartment 211a.

[0047] The atomization assembly 220 is located in the liquid storage assembly 210. The atomization assembly 220 is formed with an atomization passage 220a. One end of the atomization passage 220a is in communication with the air inlet passage 210a, and the other end is in communication with the air outlet passage 210b.

[0048] At least part of one sealing plug 300 is located in the air inlet passage 210a and sealingly cooperates with the air inlet passage 210a. At least part of the other sealing plug 300 is located in the air outlet passage 210b and sealingly cooperates with the air outlet passage 210b.

[0049] In the air inlet passage 210a, the air outlet passage 210b, and the atomization passage 220a, the absolute value of the difference between the volume of the air located between the two sealing plugs 300 and the volume of the air in the liquid storage compartment 211a does not exceed a design threshold value.

[0050] The sealing is performed by arranging the sealing plugs 300 in the air inlet channel 210a and the air outlet channel 210b of the liquid storage assembly 210, and the absolute value of the difference between the volume of the air located between the two sealing plugs 300 and the volume of the air in the liquid storage chamber 211a of the liquid storage assembly 210 is not more than the design threshold, so that the air pressure in the atomization channel 220a is relatively close to the air pressure in the liquid storage chamber 211a, and the possibility of the aerosol substrate in the liquid storage chamber 211a being squeezed into the atomization channel 220a under the action of the air pressure difference between the atomization channel 220a and the liquid storage chamber 211a is reduced, thereby reducing or avoiding the leakage of the aerosol substrate to the air inlet channel 210a and the air outlet channel 210b.

[0051] In some examples, the design threshold can be 0-0.5 ml.

[0052] The smaller the design threshold is set, the closer the volume of the air located between the two sealing plugs 300 is to the volume of the air in the liquid storage chamber 211a, so that the air pressure difference between the atomization channel 220a and the liquid storage chamber 211a is smaller during environmental changes, and the possibility of leakage of the aerosol substrate is lower. By setting the design threshold to be between 0-0.5 ml, the problem of aerosol substrate leakage can be improved more obviously, and the risk of leakage is reduced.

[0053] For example, the design threshold can be 0.1 ml, 0.25 ml, or 0.3 ml. Generally, the smaller the design threshold is, the lower the risk of aerosol substrate leakage is, and accordingly the production cost is also increased. The size of the design threshold can be set according to specific design requirements.

[0054] As an example, the two sealing plugs 300 include a first sealing plug 310 and a second sealing plug 320, the first sealing plug 310 is located in the air inlet channel 210a, and the second sealing plug 320 is located in the air outlet channel 210b. Figure 5 is a structural schematic view of a first sealing plug provided by an embodiment of the present application, Figure 6 is a structural schematic view of a second sealing plug provided by an embodiment of the present application. As Figure 5 and Figure 6 shown, the sealing plug 300 includes a sealing plug body 301 and n sealing ribs 302, where n≥2. The sealing plug body 301 has a first end and a second end, and the first end of the sealing plug body 301 is used for insertion into the liquid storage assembly 210.

[0055] The sealing ribs 302 are annular and surround the sealing plug body 301. The n sealing ribs 302 are arranged along the length direction of the sealing plug body 301. In the direction from the first end to the second end of the sealing plug body 301, the first m sealing ribs 302 of the n sealing ribs 302 have a gap 302a that connects the two sides of the sealing rib 302. Here, 1≤m

[0056] As shown in FIG. 3, the first sealing plug 310 includes two sealing ribs 302. In the direction from the first end to the second end of the sealing plug body 301, the first sealing rib 302 of the two sealing ribs 302 has a gap 302a. Figure 5 As shown in FIG. 4, the second sealing plug 320 includes four sealing ribs 302. In the direction from the first end to the second end of the sealing plug body 301, the first three sealing ribs 302 of the four sealing ribs 302 have a gap 302a.

[0057] Figure 6 In addition to the leakage of the aerosol substrate caused by the change in the environment during storage and transportation, there are other reasons that can cause the leakage of the aerosol substrate. Before the user removes the sealing plug 300, the aerosol substrate in the partial atomizer 200 has not leaked into the atomization channel 220a. During the removal of the sealing plug 300, due to the good sealing performance of the sealing plug 300, as the sealing plug 300 moves outward, the air pressure in the atomization channel 220a gradually decreases, thereby causing the aerosol substrate in the liquid storage chamber 211a to be drawn into the atomization channel 220a, causing the leakage of the aerosol substrate.

[0058] In the embodiments of the present application, by providing a gap 302a on part of the sealing ribs 302, and the sealing ribs 302 having the gap 302a are close to the first end of the sealing plug body 301, during the removal of the sealing plug 300 outward, the plurality of sealing ribs 302 are separated from the liquid storage assembly 210 one by one in the direction from the second end to the first end of the sealing plug body 301. Once the sealing rib 302 close to the second end of the sealing plug body 301 is pulled out, the air in the environment can enter the atomization channel 220a through the gap 302a of the other sealing ribs 302, thereby avoiding the further decrease of the air pressure in the atomization channel 220a, thereby reducing the risk of causing the leakage of the aerosol substrate during the removal of the sealing plug 300.

[0059] In the embodiments of the present application, by providing a gap 302a on part of the sealing ribs 302, and the sealing ribs 302 having the gap 302a are close to the first end of the sealing plug body 301, during the removal of the sealing plug 300 outward, the plurality of sealing ribs 302 are separated from the liquid storage assembly 210 one by one in the direction from the second end to the first end of the sealing plug body 301. Once the sealing rib 302 close to the second end of the sealing plug body 301 is pulled out, the air in the environment can enter the atomization channel 220a through the gap 302a of the other sealing ribs 302, thereby avoiding the further decrease of the air pressure in the atomization channel 220a, thereby reducing the risk of causing the leakage of the aerosol substrate during the removal of the sealing plug 300.

[0060] ​Furthermore, before the atomizer 200 leaves the factory, when the sealing plugs 300 are inserted into the air inlet channel 210a and the air outlet channel 210b, the insertion of the sealing plugs 300 will compress the air in the atomization channel 220a, causing the pressure to increase. However, because the sealing rib 302 near the first end of the sealing plug body 301 has a notch 302a, some air in the atomization channel 220a can overflow through the notch 302a as the sealing plug 300 is inserted, until the sealing rib 302 near the second end of the sealing plug body 301 contacts the liquid storage component 210 to form a seal. It is evident that the notch 302a significantly reduces the impact of assembling the sealing plug 300 on the air pressure within the atomization channel 220a. In the process of designing the atomizer 200, the depth to which the sealing plug 300 is inserted into the air inlet channel 210a or the air outlet channel 210b can be determined based on the volume of air in the liquid storage chamber 211a, so that after the sealing plug 300 is installed in place, the absolute value of the difference between the volume of air between the two sealing plugs 300 and the volume of air in the liquid storage chamber 211a does not exceed the design threshold.

[0061] Since both sealing plugs 300 have sealing ribs 302, the assembly order of the two sealing plugs 300 during the pre-shipment assembly process can reduce the impact of assembling the sealing plugs 300 on the air pressure in the atomizing channel 220a. Furthermore, regardless of which sealing plug 300 the user removes first during use, a significant drop in air pressure within the atomizing channel 220a can be avoided.

[0062] As an example, the length of the second sealing plug 320 may be greater than the length of the first sealing plug 310.

[0063] The length of the air outlet channel 210b of the atomizer 200 is usually longer than that of the air inlet channel 210a. By setting the second sealing plug 320 to be relatively long, the second sealing plug 320 can form a larger range of seal with the air outlet channel 210b.

[0064] like Figure 4 As shown, at least one sealing rib 302 of the sealing plug 300 located in the air outlet channel 210b is located in the atomization channel 220a, and the sealing rib 302 is in a sealing fit with the atomization channel 220a.

[0065] In this example, the sealing rib 302 of the second sealing plug 320, which is closest to the first end of the sealing plug body 301, is located in the atomization channel 220a and is sealed to the atomization channel 220a.

[0066] In use, the airflow direction of the atomizer 200 is from the atomization channel 220a to the air outlet channel 210b. The sealing rib 302 seals the atomization channel 220a, so that even if a small amount of aerosol substrate leaks into the atomization channel 220a, the aerosol substrate can be prevented from adhering to the inner wall of the air outlet channel 210b, thereby preventing the user from inhaling unvaporized aerosol substrate.

[0067] As shown in Figure 5 or Figure 6 The sealing plug 300 further includes an outer flange 303 located at the second end of the sealing plug body 301, and the outer flange 303 is in contact with the outer surface of the liquid storage assembly 210.

[0068] The outer flange 303 is located outside the liquid storage assembly 210, which can be in contact with the outer surface of the liquid storage assembly 210 to form a seal and strengthen the sealing effect, and can facilitate the user to apply force when removing the sealing plug 300, so that the sealing plug 300 is more easily removed.

[0069] As shown in Figure 5 The first end of the sealing plug body 301 has a chamfer 301a.

[0070] By providing the chamfer 301a at the first end of the sealing plug body 301, the sealing plug 300 can be easily inserted into the air inlet channel 210a and the air outlet channel 210b before the atomizer 200 is shipped.

[0071] As an example, as shown in Figure 4 The liquid storage assembly 210 includes an atomization cartridge shell 211, which includes a main body portion 2111 and a mouthpiece portion 2112 connected together, and the mouthpiece portion 2112 forms the air outlet channel 210b.

[0072] In this example, since the atomization cartridge shell 211 includes the mouthpiece portion 2112, the user can directly use it without the need to additionally provide a mouthpiece.

[0073] As shown in Figure 4 The liquid storage assembly 210 can further include a base 212 inserted at the end of the main body portion 2111 away from the mouthpiece portion 2112, and the base 212 is in sealing cooperation with the main body portion 2111. The base 212 can be used to mount the electrode 2231, the oil absorbing cotton 213, and other structures.

[0074] In other examples, the atomizer 200 can further include a mouthpiece that is detachably connected to the liquid storage assembly 210 and in communication with the air outlet channel 210b, so that the user can connect a suitable mouthpiece to the atomizer 200 for use after removing the sealing plug 300 according to personal preference.

[0075] The above-described embodiments are only used to illustrate the technical solutions of the present application, but not limit them; although the present application is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application.

Claims

1. An atomizer, characterized in that, The device includes a liquid storage assembly (210), an atomizing assembly (220), and two sealing plugs (300). The liquid storage assembly (210) has a liquid storage chamber (211a), an air inlet channel (210a), and an air outlet channel (210b). The liquid storage chamber (211a) contains an aerosol matrix. The atomizing assembly (220) is located in the liquid storage assembly (210). The atomizing assembly (220) has an atomizing channel (220a). One end of the atomizing channel (220a) is connected to the air inlet channel (210a), and the other end is connected to the air outlet channel (210b). At least a portion of one of the sealing plugs (300) is located in the air intake passage (210a) and is sealed to the air intake passage (210a); at least a portion of the other sealing plug (300) is located in the air outlet passage (210b) and is sealed to the air outlet passage (210b). In the air inlet channel (210a), the air outlet channel (210b), and the atomizing channel (220a), the absolute value of the difference between the volume of air located between the two sealing plugs (300) and the volume of air in the liquid storage chamber (211a) does not exceed the design threshold.

2. The atomizer according to claim 1, characterized in that, The design threshold is 0 to 0.5 ml.

3. The atomizer according to claim 1, characterized in that, The sealing plug (300) includes a sealing plug body (301) and n sealing ribs (302), where n≥2; The sealing plug (301) has a first end and a second end, the first end being used for insertion into the liquid storage assembly (210); The sealing ribs (302) are annular and surround the sealing plug (301). The n sealing ribs (302) are arranged along the length of the sealing plug (301) from the first end to the second end. The first m sealing ribs (302) of the n sealing ribs (302) have notches (302a) that connect the two sides of the sealing ribs (302), where 1 ≤ m < n.

4. The atomizer according to claim 3, characterized in that, At least one sealing rib (302) of the sealing plug (300) located in the air outlet channel (210b) is located in the atomizing channel (220a), and the at least one sealing rib (302) is in a sealing fit with the atomizing channel (220a).

5. The atomizer according to claim 3, characterized in that, The sealing plug (300) also includes an outer flange (303), which is located at the second end of the sealing plug body (301) and is in contact with the outer surface of the liquid storage assembly (210).

6. The atomizer according to claim 3, characterized in that, The first end of the sealing plug (301) has a chamfer (301a).

7. The atomizer according to any one of claims 1 to 6, characterized in that, The two sealing plugs (300) include a first sealing plug (310) and a second sealing plug (320), the first sealing plug (310) being located in the air intake channel (210a), the second sealing plug (320) being located in the air outlet channel (210b), and the length of the second sealing plug (320) being greater than the length of the first sealing plug (310).

8. The atomizer according to any one of claims 1 to 6, characterized in that, The liquid storage assembly (210) includes an atomizing chamber housing (211), which includes a connected main body (2111) and a nozzle (2112), and the nozzle (2112) forms the air outlet channel (210b).

9. The atomizer according to any one of claims 1 to 6, characterized in that, The atomizer also includes a mouthpiece, which is detachably connected to the liquid storage assembly (210) and communicates with the air outlet channel (210b).

10. An aerosol generating device, characterized in that, It includes a power supply assembly (100) and an atomizer as described in any one of claims 1 to 9, wherein the power supply assembly (100) is used to supply power to the atomizing assembly (220).

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