Atomizer and aerosol generating device

Abstract

The utility model discloses an atomizer and an aerosol generating device. The atomizer comprises a shell, an atomizing assembly and an isolating assembly. The atomization assembly is arranged in the shell, and an air outlet channel is formed in the shell. The atomization assembly comprises an atomization pipe, and a liquid inlet hole is formed in the atomization pipe; the isolation assembly comprises a first isolation part and a second isolation part which are fixedly connected; the first isolation part is arranged in the shell and sleeves the periphery of the atomizing pipe; at least part of the second isolation part is arranged in the air outlet channel, external pollutants are prevented from entering the air outlet channel, and the effect of a dustproof plug is achieved; the second isolation part can move relative to the shell so as to drive the first isolation part to move relative to the liquid inlet hole to expose the liquid inlet hole; after moving to a preset position, the second isolation part can be separated from the first isolation part, and the second isolation part is moved out of the shell to expose the air outlet channel. The process of activating the atomization assembly is easy, convenient and reliable to operate, and the liquid aerosol generating matrix can be effectively prevented from leaking in the transportation process.

Description

Technical Field

[0001] The utility model relates to the technical field of atomization, and particularly relates to an atomizer and an aerosol generating device. Background Art

[0002] An aerosol generating device is a device that heats and atomizes an aerosol generating substrate stored in a liquid storage member through an atomization component so that a user can inhale the atomized aerosol generating substrate. Existing aerosol generating devices usually have a liquid storage cavity for storing a liquid aerosol generating substrate, an atomization core in liquid conduction communication with the liquid storage cavity, and a suction channel in gas conduction communication with the atomization core. Before the user first uses the aerosol generating device, the atomization core, the liquid storage cavity and the suction channel maintain a communication state. Due to reasons such as poor internal sealing of the device, during transportation, the liquid atomization substrate is likely to leak out from the suction channel, bringing a bad user experience. Summary of the Utility Model

[0003] The technical problem to be solved by this application is to provide an improved atomizer and aerosol generating device to reduce the risk of leakage of the liquid aerosol generating substrate in the liquid storage cavity.

[0004] In some embodiments, an atomizer is provided, which includes a housing, an atomization component, and an isolation component;

[0005] The atomization component is arranged inside the housing, and an air outlet channel communicating with the atomization component is arranged inside the housing;

[0006] The atomization component includes an atomization tube, and a liquid inlet hole is formed in the side wall of the atomization tube;

[0007] The isolation component includes a first isolation part and a second isolation part fixedly connected; the first isolation part is arranged inside the housing and sleeved around the atomization tube, covering the liquid inlet hole; the second isolation part is at least partially arranged in the air outlet channel;

[0008] The second isolation part can move relative to the housing, so as to drive the first isolation part to move relative to the liquid inlet hole to expose the liquid inlet hole;

[0009] After the second isolation part moves relative to the housing to a predetermined position, the first isolation part and the second isolation part can be separated from each other, so that the second isolation part moves out of the housing, exposing the air outlet channel.

[0010] In some embodiments, the housing includes a connected main body portion and a nozzle inner tube, and the nozzle inner tube defines the air outlet passage; the first isolation portion is cylindrical, a part of the second isolation portion is connected to the inner wall of the first isolation portion through a first connection portion, and a gap is formed between another part of the second isolation portion and the inner wall of the first isolation portion; at the predetermined position, the nozzle inner tube is located in the gap and abuts against the first connection portion.

[0011] In some embodiments, the end of the first end of the second isolation portion is connected to the inner wall of the first isolation portion through the first connection portion; and / or, the second isolation portion is rod-shaped or cylindrical and at least part of it is located outside the housing.

[0012] In some embodiments, the atomizer further includes a plugging member; a liquid injection hole is formed on the housing, and the plugging member is detachably sealed on the liquid injection hole.

[0013] In some embodiments, the atomizer further includes a sealing member, the sealing member is sleeved on the periphery of the atomizing tube, the housing is sleeved on the peripheries of the atomizing tube and the sealing member and is connected to the sealing member, and the housing, the sealing member, the atomizing tube and the first isolation portion together define a liquid storage cavity; the liquid inlet hole can be covered by the first isolation portion or exposed to the liquid storage cavity; at least one of the surfaces of the sealing member and the atomizing tube facing each other is recessed with at least one buffer groove, and the buffer groove communicates the outside with the liquid storage cavity.

[0014] In some embodiments, the atomizer further includes a liquid absorbing member; the liquid absorbing member is arranged on the side of the sealing member facing away from the liquid storage cavity and is communicated with the buffer groove; the atomizer further includes a receiving seat, the receiving seat is located on the side of the sealing member facing away from the liquid storage cavity, the housing is sleeved on the outer periphery of the receiving seat and is hermetically connected to the receiving seat; the receiving seat is provided with an air inlet hole and a first receiving cavity; the liquid absorbing member is arranged in the first receiving cavity; the air inlet hole communicates the outside atmosphere with the first receiving cavity; the atomizing tube includes an air outlet end and a bottom end arranged opposite to each other, and the bottom end is arranged above the liquid absorbing member.

[0015] In some embodiments, the sealing member includes an axially connected first part and a second part; the first part and the housing and the atomizing tube together define the liquid storage cavity; the second part is hermetically connected to the receiving seat and the atomizing tube respectively, and at least one of the surfaces of the second part and the atomizing tube facing each other is recessed with at least one buffer groove.

[0016] In some embodiments, the atomizer further includes a drainage structure disposed between the liquid absorption member and the buffer tank; the drainage structure includes a boss protruding from the sidewall of the atomization tube, and the bottom end of the boss is disposed above the liquid absorption member.

[0017] In some embodiments, the boss includes a first drainage portion, a second drainage portion, and a second connecting portion connecting between the first drainage portion and the second drainage portion; the second connecting portion is connected to one end of the buffer tank away from the liquid storage cavity, and one end of the first drainage portion away from the second connecting portion and one end of the second drainage portion away from the second connecting portion respectively face the liquid absorption member.

[0018] In some embodiments, there is also provided an aerosol generating device, which includes a power supply unit, a control unit, and the atomizer according to any one of the above, the power supply unit provides power for the atomizer, and the control unit is used to control the atomizer.

[0019] According to the atomizer of the above embodiments, thus, when the atomization core of the atomization assembly is not activated, for example, during transportation, since the second isolation portion is at least partially disposed in the air outlet passage, the air outlet passage can be blocked by the second isolation portion to prevent external pollutants from entering the air outlet passage, and the second isolation portion functions as a dust plug. When it is necessary to activate the atomization core of the atomization assembly, the user only needs to move the second isolation portion, driving the first isolation portion to move relative to the liquid inlet hole until the liquid inlet hole is exposed to the liquid storage cavity, and the atomization assembly enters the first activation state. Subsequently, after continuing to move the second isolation portion to a predetermined position, since the first isolation portion and the second isolation portion can be separated from each other, the second isolation portion can be moved out of the housing and the air outlet passage can be exposed. The process of activating the atomization assembly is simple and reliable in operation, and can effectively prevent the leakage of the liquid aerosol generating matrix from the air outlet passage during transportation. Description of the Drawings

[0020] Figure 1 is a perspective structural schematic diagram of an aerosol generating device in some embodiments of the present application;

[0021] Figure 2 is Figure 1 the exploded structural schematic diagram of the aerosol generating device shown;

[0022] Figure 3 is Figure 1 the vertical sectional structural schematic diagram of the aerosol generating device shown;

[0023] Figure 4 is a structural schematic diagram of an atomizer in some embodiments of the present application;

[0024] Figure 5 is Figure 4 the exploded structural schematic diagram of the atomizer shown;

[0025] Figure 6 is Figure 5 a schematic vertical sectional structure view of the atomizer shown;

[0026] Figure 7 is a schematic partial exploded structure view of the atomizer in some embodiments of the present application;

[0027] Figure 8 is a schematic structure view of the atomizer in the first activation state in some embodiments of the present application;

[0028] Figure 9 is a schematic structure view of the atomizer in the second activation state in some embodiments of the present application;

[0029] Figure 10 is a schematic structure view of the atomizer in the third activation state in some embodiments of the present application;

[0030] Figure 11 is a schematic partial structure view of the atomizer in some embodiments of the present application;

[0031] Figure 12 is Figure 11 a schematic exploded structure view of the atomizer shown;

[0032] Figure 13 is a schematic partial structure view of the atomizer in some embodiments of the present application;

[0033] Figure 14 is Figure 12 a schematic further exploded structure view of the atomizer shown;

[0034] Among them, the reference numerals are as follows:

[0035] 10 - atomizer, 100 - liquid storage cavity, 11 - outer shell, 110 - liquid injection hole, 111 - main body part, 112 - inner tube of the mouthpiece, 113 - air outlet channel, 12 - atomization component, 120 - liquid inlet hole, 121 - atomization tube, 122 - liquid guiding part, 123 - heating element, 13 - sealing part, 131 - first part, 132 - second part, 14 - plugging part, 15 - buffer groove, 16 - liquid absorbing part, 160 - groove, 17 - receiving seat, 170 - air inlet hole, 171 - first receiving cavity, 18 - drainage structure, 181 - first drainage part, 182 - second drainage part, 183 - second connecting part,

[0036] 20 - power supply unit, 21 - battery case, 212 - second receiving cavity, 22 - battery,

[0037] 30 - control unit, 301 - circuit board, 302 - electrode post;

[0038] 40 - Isolation component, 41 - First isolation part, 42 - Second isolation part, 421 - First end, 422 - Second end, 43 - First connection part;

[0039] 51 - First sealing ring, 52 - Second sealing ring, 53 - Third sealing ring. Detailed implementation manners

[0040] The present utility model will be further described in detail below in conjunction with the accompanying drawings through specific implementation manners. Similar elements in different implementation manners are labeled with related similar element numbers. In the following implementation manners, many detailed descriptions are provided to enable a better understanding of the present application. However, those skilled in the art can easily recognize that some of the features can be omitted in different situations, or can be replaced by other elements, materials, or methods. In some cases, some operations related to the present application are not shown or described in the specification to avoid overwhelming the core part of the present application with excessive descriptions. For those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations based on the descriptions in the specification and general technical knowledge in the art.

[0041] In addition, the features, operations, or characteristics described in the specification can be combined in any appropriate manner to form various implementation manners. At the same time, the steps or actions in the method description can also be reordered or adjusted in an obvious manner by those skilled in the art. Therefore, the various sequences in the specification and drawings are only for clearly describing a certain embodiment and do not mean a necessary sequence, unless it is stated that a certain sequence must be followed.

[0042] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the described objects and do not have any sequential or technical meaning. The "connection" and "coupling" mentioned in the present application, unless otherwise specified, both include direct and indirect connection (coupling).

[0043] Please refer to Figures 1 to 3, in some embodiments, an aerosol generating device is provided. The aerosol generating device includes an atomizer 10, a power supply unit 20, and a control unit 30. The power supply unit 20 is configured to supply power to the atomizer 10 and the control unit 30. The atomizer 10 is used to accommodate an aerosol generating substrate, and the aerosol generating substrate can be a liquid or solid aerosol generating substrate. The liquid aerosol generating substrate includes e-liquid, medicinal liquid, etc. The atomizer 10 can heat the aerosol generating substrate in an energized state to generate an aerosol for the user to inhale. The control unit 30 is connected to the power supply unit 20 and the atomizer 10 respectively. On the one hand, the control unit 30 accesses power from the power supply unit 20, and on the other hand, it can be used to control the power on / off of the atomizer 10, thereby controlling the atomization switch of the atomizer 10, that is, controlling the atomizer 10 to turn on the heating state and stop the heating state.

[0044] Please refer to Figures 1 to 3 , in some embodiments, the power supply unit 20 includes a battery case 21 and a battery 22. The battery case 21 defines a second receiving cavity 212, and the battery 22 is received in the second receiving cavity 212. The atomizer 10 and the control unit 30 are connected as a whole. The connection between the atomizer 10 and the battery case 21 is detachable. During assembly, the atomizer 10 is inserted into the second receiving cavity 212 from the open end of the battery case 21 so that the atomizer 10 is connected to the battery 22. The control unit 30 can be installed at the bottom of the atomizer 10. Connecting the atomizer 10 and the control unit 30 as a whole eliminates the need to design an additional positioning structure for the control unit 30, saving components and facilitating assembly. In other embodiments, the connection between the atomizer 10 and the battery case 21 can also be non-detachable. When the atomizer 10 is inserted into the second receiving cavity 212 from the open end of the battery case 21, the control unit 30 is connected to the battery 22. The control unit 30 may include components such as a circuit board 301 in some embodiments.

[0045] As Figures 4 to 7 shown, in some embodiments, the atomizer 10 includes a housing 11, an atomization assembly 12, a separation assembly 40, and a liquid storage cavity 100. The liquid storage cavity 100 is used to store the liquid aerosol generating substrate.

[0046] The atomization component 12 is disposed inside the housing 11. The atomization component 12 includes an atomization tube 121 that is hollow and has through ends, and an atomization core disposed inside the atomization tube 121. The atomization core includes a liquid guiding member 122 and a heating element 123 attached to the liquid guiding member 122. The liquid guiding member 122 can be an annular liquid guiding member 122 in some embodiments, and the heating element 123 is attached to the inner circumferential surface of the annular liquid guiding member 122. A liquid inlet hole 120 is provided on the side wall of the atomization tube 121, and the aerosol-forming substrate can enter the inside of the atomization tube 121 through the liquid inlet hole 120, contact the heating element 123 via the liquid guiding member 122. The heating element 123 can generate heat in the energized state and transfer the heat to the aerosol-forming substrate, heating and atomizing the aerosol-forming substrate to generate aerosol. In some embodiments, the heating element 123 can be an annular resistive heating mesh surface, and in other embodiments, the heating element 123 can also be an annular ceramic heating element. The atomization tube 121 includes an air outlet end and a bottom end that are oppositely arranged. The air outlet end is used for outputting aerosol, and the bottom end can be used for inputting external air into the atomization tube 121, so that the aerosol is mixed with air for the user to inhale.

[0047] An air outlet channel 113 communicating with the atomization component 12 is provided inside the housing 11. Specifically, the inside of the atomization tube 121 is connected to the air outlet channel 113. The aerosol generated after the atomization core heats the aerosol-forming substrate flows out through the air outlet channel 113.

[0048] The isolation component 40 includes a first isolation portion 41 and a second isolation portion 42 that are fixedly connected. The first isolation portion 41 is disposed inside the housing 11 and sleeved around the periphery of the atomization tube 121. The second isolation portion 42 is at least partially disposed inside the air outlet channel 113. That is, the second isolation portion 42 can be as Figure 4 shown, partially disposed inside the air outlet channel 113 and partially extending outside the housing 11. Specifically, as Figure 4 shown in the embodiment, the second isolation portion 42 includes an opposite first end 421 and a second end 422. The first end 421 is disposed inside the housing 11, and the second end 422 extends outside the housing 11. Or, in some other embodiments, the second isolation portion 42 can also be entirely disposed inside the air outlet channel 113. Specifically, the end of the second end 422 of the second isolation portion 42 can be flush with the top surface of the housing 11 or extend beyond the housing 11. The end of the first end 421 of the second isolation portion 42 can be located inside the air outlet channel 113 or below the air outlet channel 113.

[0049] The second isolation part 42 can move relative to the housing 11 to a predetermined position, thereby driving the first isolation part 41 to move relative to the liquid inlet hole 120 to expose the liquid inlet hole 120. That is, the second isolation part 42, as the driving part, can move up and down relative to the housing 11 and can at least move to the predetermined position. During this process, driven by the second isolation part 42, the first isolation part 41 moves up and down relative to the liquid inlet hole 120. As Figure 4 shown in the position, the first isolation part 41 covers the liquid inlet hole 120. If the first isolation part 41 continues to move upward, it will separate from the liquid inlet hole 120, exposing the liquid inlet hole 120 to the liquid storage cavity 100. After the second isolation part 42 moves relative to the housing 11 to the predetermined position, the first isolation part 41 and the second isolation part 42 can be separated from each other, so that the second isolation part 42 is removed outside the housing 11, exposing the air passage 113.

[0050] Specifically, please refer to Figure 4 、 Figures 8 to 10 together. Figure 4 shows the initial state of the atomizer 10, Figure 8 shows the first activation state of the atomizer 10, Figure 9 shows the second activation state of the atomizer 10, Figure 10 shows the third activation state of the atomizer 10. The initial state to the third activation state can be arranged in chronological order. That is, from the initial state to the third activation state, it shows four position states during the process of the second isolation part 42 moving upward relative to the housing 11. Among them Figure 8 the shown position is the predetermined position.

[0051] Figure 4 is the initial state, that is, the state where the atomization core of the atomization assembly 12 is not activated. At this time, the liquid storage cavity 100 and the liquid inlet hole 120 are not connected. At this time, if the second isolation part 42 is pulled upward continuously, the first isolation part 41 and the second isolation part 42 move upward together until reaching Figure 8 the shown first activation state, the liquid inlet hole 120 and the liquid storage cavity 100 are connected, and the atomization core of the atomization assembly 12 is in the activated state. At this time, if the second isolation part 42 is pulled upward continuously, as Figure 9 shown, when the atomizer 10 reaches the second activation state, the first isolation part 41 and the second isolation part 42 are separated. At this time, if the second isolation part 42 is pulled upward continuously, as Figure 10 shown, when the atomizer 10 reaches the third activation state, the second isolation part 42 is separated from the air outlet passage 113, while the first isolation part 41 remains inside the housing 11 and is sleeved around the periphery of the atomization tube 121.

[0052] Thus, when the atomization core of the atomization component 12 is not activated, such as during transportation, since the second isolation part 42 is at least partially disposed in the air outlet passage 113, the air outlet passage 113 can be blocked by the second isolation part 42 to prevent external contaminants from entering the air outlet passage 113, and the second isolation part 42 functions as a dust plug. When it is necessary to activate the atomization core of the atomization component 12, the user only needs to move the second isolation part 42 to drive the first isolation part 41 to move relative to the liquid inlet hole 120 until the liquid inlet hole 120 is exposed to the liquid storage cavity 100, and the atomization component 12 enters the first activation state. Subsequently, after continuing to move the second isolation part 42 to a predetermined position, since the first isolation part 41 and the second isolation part 42 can be separated from each other, the second isolation part 42 can be removed out of the housing 11 to expose the air outlet passage 113, and the first isolation part 41 remains inside the housing 11. The process of activating the atomization component 12 is simple and reliable in operation, and can effectively prevent the leakage of the liquid aerosol generation matrix from the air outlet passage 113 during transportation.

[0053] As Figures 4 to 6 shown, specifically, in some embodiments, the housing 11 includes a connected main body part 111 and a mouthpiece inner tube 112. The mouthpiece inner tube 112 is disposed inside the main body part 111, and the mouthpiece inner tube 112 defines an air outlet passage 113. The first isolation part 41 is cylindrical, and the cross-sectional dimension of the first isolation part 41 is larger than the cross-sectional dimension of the second isolation part 42 and also larger than the cross-sectional dimension of the mouthpiece inner tube 112. The first isolation part 41 may specifically be in the shape of a circular cylinder, a square cylinder, or the like.

[0054] One part of the second isolation part 42 is connected to the inner wall of the first isolation part 41 through a first connection part 43, and a gap 44 is formed between another part of the second isolation part 42 and the inner wall of the first isolation part 41. As Figure 8 shown, at the predetermined position, the mouthpiece inner tube 112 is located in the gap 44 and abuts against the first connection part 43.

[0055] That is to say, the second isolation part 42 is detachably arranged in the air outlet channel 113. Before reaching the predetermined position, the whole isolation component 40 can move upward relative to the housing 11. After reaching the predetermined position, since the inner tube 112 of the nozzle abuts against the first connecting part 43, the relative movement between the inner tube 112 of the nozzle and the whole isolation component 40 is restricted, and the whole isolation component 40 cannot continue to move upward. At this time, if the second isolation part 42 is continuously pulled upward, the first connecting part 43 will receive a downward acting force exerted by the inner tube 112 of the nozzle. When the downward acting force exceeds the load-bearing capacity limit of the first connecting part 43, the first connecting part 43 breaks, resulting in the separation of the second isolation part 42 and the first isolation part 41. After the second isolation part 42 and the first isolation part 41 are separated from each other, by continuously pulling the second isolation part 42, the second isolation part 42 can be taken out of the air outlet channel 113, and the first isolation part 41 can continue to be sleeved on the outer periphery of the inner tube 112 of the nozzle. For the sake of labor saving, the first connecting part 43 can be designed to have a smaller thickness so that it can break under the acting force applied at the lower end of the inner tube 112 of the nozzle, enabling the first isolation part 41 and the second isolation part 42 to be quickly separated.

[0056] Furthermore, as Figure 7 shown, the end of the first end 421 of the second isolation part 42 is connected to the first connecting part 43. That is to say, the end of the first end 421 of the second isolation part 42 is connected to the inner wall of the first isolation part 41 through the first connecting part 43. Of course, in other embodiments, it can also be the area between the first end 421 and the second end 422 of the second isolation part 42 that is connected to the first connecting part 43. As Figure 7 shown in the embodiment, the second isolation part 42 is rod-shaped. In other embodiments, the second isolation part 42 can also be cylindrical or other shapes. At least part of the second isolation part 42 is located outside the housing 11.

[0057] As Figures 4 to 6As shown, in some embodiments, the atomizer 10 further includes a seal 13 and a plug 14. The seal 13 is sleeved around the periphery of the atomizing tube 121, and the housing 11 is sleeved around the atomizing tube 121 and the seal 13 and is connected to the seal 13. The housing 11, the seal 13, the atomizing tube 121, and the first isolation part 41 are sequentially and hermetically connected to jointly define a liquid storage cavity 100. Specifically, in some embodiments, the inner surface of the housing 11 faces inwards, the outer surface of the atomizing tube 121 faces outwards, the outer surface of the first isolation part 41 faces outwards, and the inner side of the seal 13 faces upwards to jointly define the space and position of the liquid storage cavity 100. A liquid injection hole 110 is formed in the side surface of the main body part 111 of the housing 11, and the plug 14 is detachably sealed at the liquid injection hole 110. By removing the plug 14 from the liquid injection hole 110, the aerosol-forming matrix can be injected into the liquid storage cavity 100 through the liquid injection hole 110; after the liquid injection is completed, the plug 14 is reinstalled at the liquid injection hole 110 to seal the liquid storage cavity 100. When the plug 14 is installed at the liquid injection hole 110, since the plug 14 will squeeze the air in the liquid storage cavity 100, the aerosol-forming matrix in the liquid storage cavity 100 will be subject to a driving force, and the aerosol-forming matrix may overflow from the liquid storage cavity 100 under the action of the driving force, leak to other components, contaminate other components, and may even damage other components (especially electronic components) in severe cases.

[0058] To solve the problem that the aerosol-forming matrix may leak outside the liquid storage cavity 100 when the liquid storage cavity 100 is closed, at least one buffer groove 15 is recessed in at least one of the surfaces of the seal 13 and the atomizing tube 121 facing each other, and the buffer groove 15 communicates with the liquid storage cavity 100. That is to say, at least one buffer groove 15 may be recessed in the surface of the seal 13 facing the atomizing tube 121, or at least one buffer groove 15 may be recessed in the surface of the atomizing tube 121 facing the seal 13, or at least one buffer groove 15 may be recessed in the surfaces of the seal 13 and the atomizing tube 121 facing each other. The number of buffer grooves 15 may be one or more, which can be set according to the actual liquid guiding requirements, and the present application does not limit this.

[0059] Thus, when the plug 14 is installed at the liquid injection hole 110, due to the influence of air pressure change, the aerosol-forming matrix in the liquid storage cavity 100 can be temporarily stored in the buffer groove 15, avoiding the leakage of the aerosol-forming matrix in the liquid storage cavity 100 to the positions where other key components are located. After the atomizer 10 is used, or when the temperature changes, the air pressure in the liquid storage cavity 100 will also change accordingly. When the air pressure in the liquid storage cavity 100 decreases (for example, when the temperature drops), the aerosol-forming matrix in the buffer groove 15 can be sucked back into the liquid storage cavity 100 for reuse.

[0060] In some embodiments, the seal 13 or the plug 14 can be set separately, and both can also coexist in the same embodiment.

[0061] In some embodiments, each buffer slot 15 is elongated. The extending trajectory of each buffer slot 15 can include at least one of a straight line and a curve. That is, the extending trajectory of each buffer slot 15 can include a straight line, a curve, or a combination of a straight line and a curve. The extending trajectory of the curve can be beneficial to increasing the total length of the buffer slot 15. The buffer capacity of each buffer slot 15 is related to its extending length. In some embodiments, the curve part in the extending trajectory of each buffer slot 15 is more than the straight line part; or, each buffer slot 15 can be in an irregular shape, a maze shape, etc., so as to increase the buffer capacity of the buffer slot 15 as much as possible.

[0062] As Figures 4 to 6 shown, in order to further prevent the aerosol-forming substrate from leaking to the positions where other key components are located, in some embodiments, the atomizer 10 further includes a liquid absorbent 16. The liquid absorbent 16 is arranged on the side of the seal 13 facing away from the liquid storage cavity 100 and is in communication with the buffer slot 15. Thus, when the aerosol-forming substrate in the buffer slot 15 continues to overflow, it can be further absorbed by the liquid absorbent 16, thereby preventing the aerosol-forming substrate in the buffer slot 15 from overflowing to other positions. The liquid absorbent 16 can include a fibrous material. For example, the liquid absorbent 16 can be a liquid storage cotton.

[0063] As Figures 4 to 6 shown, in some embodiments, the atomizer 10 further includes a receiving seat 17. The receiving seat 17 is located on the side of the seal 13 facing away from the liquid storage cavity 100. The outer shell 11 is sleeved on the outer periphery of the receiving seat 17 and is in sealed connection with the receiving seat 17. The receiving seat 17 is generally cylindrical, and is provided with an air inlet hole 170 (please refer to Figure 14 ) and a first receiving cavity 171. The air inlet hole 170 is arranged on the bottom wall of the first receiving cavity 171. The liquid absorbent 16 is arranged in the first receiving cavity 171. The air inlet hole 170 connects the outside atmosphere with the first receiving cavity 171. Thus, the buffer slot 15 is also in communication with the first receiving cavity 171 and the outside atmosphere. The bottom end of the atomizing tube 121 is arranged above the liquid absorbent 16. Since the atomizing tube 121 is in communication with the air outlet channel 113, for the condensate generated inside the atomizing tube 121 and the condensate generated inside the air outlet channel 113, if these condensates are not heated and atomized in time and continue to flow downward, they will also be absorbed by the liquid absorbent 16, thereby preventing the condensates in the air outlet channel 113 and the atomizing tube 121 from contaminating other key components.

[0064] As Figures 4 to 6As shown, in some embodiments, the seal 13 includes a first part 131 and a second part 132 that are axially joined. The first part 131 may be the upper half of the seal 13, and the second part 132 may be the lower half of the seal 13. The first part 131, together with the main body 111 of the outer shell 11, the nozzle inner tube 112 of the outer shell 11, and the atomization tube 121, defines a liquid storage cavity 100. The second part 132 is sealingly joined to the receiving seat 17 and the atomization tube 121 respectively. At least one buffer groove 15 is recessed in at least one of the surfaces of the second part 132 and the atomization tube 121 facing each other.

[0065] Specifically, a first sealing ring 51 is provided on the outer peripheral surface of the first part 131 of the seal 13 to be sealingly joined to the main body 111 of the outer shell 11; a second sealing ring 52 is provided on the outer peripheral surface of the second part 132 of the seal 13 to be sealingly joined to the inner periphery of the receiving seat 17. The outer peripheral surfaces of the main body 111 of the outer shell 11 and the receiving seat 17 are sealingly joined by a third sealing ring 53. In summary, the outer peripheral surface of the main body 111 of the outer shell 11 can be sealingly joined to the outer peripheral surface of the receiving seat 17, the inner peripheral surface of the receiving seat 17 can be sealingly joined to the outer peripheral surface of the second part 132 of the seal 13, the inner peripheral surface of the second part 132 of the seal 13 can be sealingly joined to the outer peripheral surface of the atomization tube 121, the outer peripheral surface of the first part 131 of the seal 13 can be sealingly joined to the inner peripheral surface of the main body 111 of the outer shell 11, and the inner peripheral surface of the first part 131 of the seal 13 can be sealingly joined to the outer peripheral surface of the atomization tube 121.

[0066] Thus, the outer peripheral surface of the seal 13 has a sealing connection relationship with the outer shell 11 and the receiving seat 17 respectively, and there is also a sealing connection relationship between the outer shell 11 and the receiving seat 17. The sealing effect inside and around the liquid storage cavity 100 is good, which can effectively prevent the aerosol generation matrix in the liquid storage cavity 100 from flowing out through the gap between the outer peripheral surface of the seal 13 and the outer shell 11 when the air pressure in the liquid storage cavity 100 changes. The aerosol generation matrix in the liquid storage cavity 100 can only enter the buffer groove 15 along the inner peripheral surface of the seal 13 (i.e., the surface of the seal 13 facing the atomization tube 121) or be absorbed by the liquid absorbing member 16 through the buffer groove 15. That is, the flow direction of the aerosol generation matrix when leaking from the liquid storage cavity 100 is restricted by the buffer groove 15 and the liquid absorbing member 16, and the risk of the aerosol generation matrix leaking to other key components can be reduced.

[0067] As Figures 11 to 13As shown, in some embodiments, the atomizer 10 further includes a drainage structure 18 disposed between the liquid absorbent member 16 and the buffer tank 15. The drainage structure 18 can provide a guiding function to quickly drain the aerosol generating matrix in the buffer tank 15 to the liquid absorbent member 16. According to the different shapes and structures of the liquid absorbent member 16, the drainage structure 18 can be set to different structures, and different structures of the drainage structure 18 can drain the aerosol generating matrix in the buffer tank 15 to different positions on the liquid absorbent member 16, which can be specifically adjusted according to actual needs.

[0068] As Figures 11 to 13 shown, in some embodiments, the drainage structure 18 includes a boss protruding from the side wall of the atomizing tube 121. The bottom end of the boss is in contact with the liquid absorbent member 16 or is suspended above the liquid absorbent member 16. The top surface of the boss is in contact with the end of the buffer tank 15. The end of the buffer tank 15 is also the end of the extension path of the buffer tank 15 away from the liquid storage cavity 100. The starting end of the buffer tank 15 is in communication with the liquid storage cavity 100. Thus, the aerosol generating matrix overflowing from the buffer tank 15 can be drained from the top surface of the boss to the bottom end of the boss, and thus be absorbed by the liquid absorbent member 16. The bottom end of the boss can be flush with the bottom end of the atomizing tube 121.

[0069] In some other embodiments, the drainage structure 18 can also include a plurality of diversion grooves recessed in the atomizing tube 121.

[0070] As Figures 11 to 13 shown, in some embodiments, the boss includes a first drainage portion 181, a second drainage portion 182, and a second connecting portion 183 connecting between the first drainage portion 181 and the second drainage portion 182. The second connecting portion 183 is connected to the end of the buffer tank 15 away from the liquid storage cavity 100 (i.e., the end of the extension path of the buffer tank 15 away from the liquid storage cavity 100, or the end of the buffer tank 15), and the ends of the first drainage portion 181 and the second drainage portion 182 away from the second connecting portion 183 face the liquid absorbent member 16 respectively. Specifically, as Figures 11 to 13 shown in the embodiment, the first drainage portion 181 and the second drainage portion 182 are symmetrically disposed on opposite sides of the second connecting portion 183. The first drainage portion 181 and the second drainage portion 182 are both vertically extending strip-shaped structures, while the second connecting portion 183 is a horizontally extending strip-shaped structure, thus constructing an "n"-shaped boss. The middle part of the "n"-shaped boss can be inserted by the positioning rib on the receiving seat 17 for positioning.

[0071] As Figure 13As shown, in some embodiments, a first groove 160 is concavely provided on the liquid absorbent member 16, and the first groove 160 is recessed inward from the edge of the liquid absorbent member 16. The first groove 160 has the function of avoiding interference for other components. The opening position of the "n"-shaped boss is correspondingly arranged with the position of the first groove 160, the second connecting portion 183 is located directly above the first groove 160, and the first drainage portion 181 and the second drainage portion 182 respectively face the liquid absorbent member 16, so as to drain the aerosol generating matrix to the liquid absorbent member 16.

[0072] As Figure 14 As shown, in some embodiments, the control unit 30 is installed at the bottom of the receiving seat 17, that is, on the side of the bottom wall of the first receiving cavity 171 facing away from the first receiving cavity 171. The control unit 30 includes a circuit board 301 and an electrode post 302 provided on the circuit board 301, and the electrode post 302 is connected to the heating element 123 of the atomization assembly 12. Therefore, the electrode post 302 needs to pass through the receiving seat 17 and then be connected to the heating element 123 of the atomization assembly 12. The first groove 160 on the liquid absorbent member 16 located in the first receiving cavity 171 can allow the electrode post 302 to pass through, thus playing a role in avoiding interference. Since the control unit 30 is installed at the bottom of the receiving seat 17, during installation, the control unit 30 and the receiving seat 17 can be installed as a whole into the second receiving cavity 212 to be connected to the battery 22, and the disassembly and assembly are more convenient. Moreover, the liquid absorbent member 16 located in the first receiving cavity 171 can be used to absorb the aerosol generating matrix overflowing from the liquid storage cavity 100 and the condensate from the inside of the air outlet channel 113 and the atomization tube 121, so as to prevent these liquids from flowing to the control unit 30 and causing pollution and damage to the electronic components on the control unit 30. Further, the liquid absorbent member 16 can be detachably arranged in the first receiving cavity 171. When the liquid absorbent member 16 absorbs a large amount of liquid, the liquid absorbent member 16 can also be taken out from the first receiving cavity 171 and a new liquid absorbent member 16 can be replaced.

[0073] The above uses specific examples to elaborate on the present invention, which is only used to help understand the present invention and is not intended to limit the present invention. For those skilled in the art of the present invention, according to the idea of the present invention, several simple deductions, deformations or replacements can also be made.

Claims

1. An atomizer (10), characterized in that: It comprises a housing (11), an atomizing assembly (12), and an isolating assembly (40); The atomizing assembly (12) is arranged inside the housing (11), and an air outlet passage (113) communicating with the atomizing assembly (12) is arranged inside the housing (11); The atomizing assembly (12) comprises an atomizing tube (121), and a liquid inlet hole (120) is formed on a side wall of the atomizing tube (121); The isolation assembly (40) comprises a first isolation portion (41) and a second isolation portion (42) which are fixedly connected; the first isolation portion (41) is arranged inside the housing (11), and is sleeved on the periphery of the atomizing tube (121), and covers the liquid inlet hole (120); the second isolation portion (42) is at least partially arranged inside the air outlet channel (113); The second isolation portion (42) is movable relative to the housing (11), thereby driving the first isolation portion (41) to move relative to the liquid inlet hole (120) to expose the liquid inlet hole (120); After the second isolating portion (42) moves to a predetermined position relative to the outer shell (11), the first isolating portion (41) and the second isolating portion (42) can be separated from each other, so that the second isolating portion (42) moves out of the outer shell (11) to expose the air outlet passage (113).

2. The atomizer (10) according to claim 1, characterized in that: The outer shell (11) comprises a main body (111) and a nozzle inner tube (112) connected to each other, and the nozzle inner tube (112) defines the air outlet channel (113); The first isolating portion (41) is cylindrical, a portion of the second isolating portion (42) is connected to the inner wall of the first isolating portion (41) via a first connecting portion (43), and a gap (44) is formed between another portion of the second isolating portion (42) and the inner wall of the first isolating portion (41); When in the predetermined position, the nozzle inner tube (112) is located in the gap (44) and abuts against the first connecting portion (43).

3. The atomizer (10) according to claim 2, characterized in that: The end of the first end (421) of the second isolation portion (42) is connected to the inner wall of the first isolation portion (41) through the first connecting portion (43); And / or, the second isolation portion (42) is rod-shaped or cylindrical, and is at least partially located outside the housing (11).

4. The atomizer (10) according to claim 1, characterized in that: The atomizer (10) further comprises a blocking member (14); The housing (11) is provided with a liquid injection hole (110), and the blocking member (14) is detachably sealed to the liquid injection hole (110).

5. The atomizer (10) according to claim 1, characterized in that: The atomizer (10) further comprises a sealing member (13), wherein the sealing member (13) is sleeved on the periphery of the atomizing tube (121); the outer shell (11) is sleeved on the peripheries of the atomizing tube (121) and the sealing member (13) and is connected to the sealing member (13); the outer shell (11), the sealing member (13), the atomizing tube (121) and the first isolating portion (41) together define a liquid storage chamber (100); the liquid inlet hole (120) can be covered by the first isolating portion (41) or exposed to the liquid storage chamber (100); At least one of the surfaces of the sealing member (13) and the atomizing tube (121) facing each other is recessed with at least one buffer groove (15), and the buffer groove (15) connects the outside with the liquid storage chamber (100).

6. The atomizer (10) according to claim 5, characterized in that: The atomizer (10) further comprises a liquid absorbing member (16); the liquid absorbing member (16) is arranged on a side of the sealing member (13) facing away from the liquid storage chamber (100), and is in communication with the buffer groove (15); The atomizer (10) further comprises a receiving seat (17), wherein the receiving seat (17) is located on a side of the sealing member (13) facing away from the liquid storage chamber (100), and the housing (11) is sleeved on the outer periphery of the receiving seat (17) and is sealedly connected to the receiving seat (17); The receiving seat (17) is provided with an air inlet hole (170) and a first receiving cavity (171); the liquid absorbing member (16) is arranged in the first receiving cavity (171); the air inlet hole (170) connects the outside atmosphere with the first receiving cavity (171); The atomizing tube (121) comprises an air outlet end and a bottom end which are arranged opposite to each other, and the bottom end is arranged above the liquid absorbing member (16).

7. The atomizer (10) according to claim 6, characterized in that The sealing element (13) comprises a first part (131) and a second part (132) connected axially; The first part (131), the housing (11) and the atomizing tube (121) define the liquid storage chamber (100); The second part (132) is sealedly connected to the receiving seat (17) and the atomizing tube (121) respectively, and at least one of the surfaces of the second part (132) and the atomizing tube (121) facing each other is recessed with at least one buffer groove (15).

8. The atomizer (10) according to claim 7, characterized in that: The atomizer (10) further comprises a drainage structure (18) arranged between the liquid absorption component (16) and the buffer tank (15); the drainage structure (18) comprises a boss protruding from the side wall of the atomization tube (121), and the bottom end of the boss is arranged above the liquid absorption component (16).

9. The atomizer (10) according to claim 8, characterized in that: The boss includes a first drainage portion (181), a second drainage portion (182) and a second connecting portion (183) connected between the first drainage portion (181) and the second drainage portion (182); the second connecting portion (183) is connected to an end of the cache slot (15) away from the liquid storage chamber (100), and an end of the first drainage portion (181) away from the second connecting portion (183) and an end of the second drainage portion (182) away from the second connecting portion (183) respectively face the liquid absorbent member (16).

10. An aerosol generating device, characterized in that: The invention comprises a power supply unit (20), a control unit (30), and the atomizer (10) according to any one of claims 1 to 9, wherein the power supply unit (20) provides power to the atomizer (10), and the control unit (30) is used to control the atomizer (10).

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