Atomizer and aerosol generating device

By setting a stopper between the atomization core and the inlet of the atomization channel, the problem of atomization matrix leakage is solved, and the sealing and reliability of the atomizer is improved.

CN223262332UActive Publication Date: 2025-08-26SHENZHEN JIJIA NEW MATERIAL TECH CO LTD
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Patent Information

Application Number
CN202422013777.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-16
Publication Date
2025-08-26
Estimated Expiration
2034-08-16

AI Technical Summary

Technical Problem

In the existing atomizer, there is an assembly gap between the atomization core and the inlet of the atomization channel, resulting in the atomization matrix being easily leaked.

Method used

A stop is provided between the atomizing core and the inlet of the atomizing channel to form a sealing structure to prevent the atomizing matrix from entering the atomizing channel.

Benefits of technology

It effectively avoids leakage of the atomized matrix into the atomization channel due to changes in air pressure, and improves the sealing and reliability of the atomizer.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an atomizer and an aerosol generating device, and the atomizer comprises a housing which is used for forming a liquid storage cavity of the atomizer and at least one part of an atomization channel; the atomizing core is arranged in the atomizing channel so as to heat an atomizing substrate; the transfer body is used for achieving transmission of the atomization matrix between the liquid storage cavity and the atomization core, and the liquid storage cavity transmits the atomization matrix to the transfer body through the overflowing opening; at least part of the stop piece is arranged between the atomization core and the inlet of the atomization channel so as to stop the atomization matrix in the mass transfer body from entering the atomization channel through the stop piece; at least part of the overflowing opening is formed between the atomizing core and an inlet of the atomizing channel. The atomizer and the aerosol generating device have the advantages that the stopping piece is arranged between the atomizing core and the inlet of the atomizing channel so as to improve leakage of the atomizing matrix to the atomizing channel.
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Description

Technical Field

[0001] The present application relates to the field of atomization technology, and in particular to a nebulizer and an aerosol generating device. Background Art

[0002] A nebulizer is a device that generates an aerosol from an atomized matrix. The nebulizer generally includes a shell, a liquid storage chamber, an atomization channel, a liquid guide structure and an atomization core. The liquid storage chamber and the atomization channel are formed inside the shell. The liquid guide structure is used to guide the atomized matrix to the atomization core. The atomization core is installed inside the liquid guide structure and is used to heat the atomized matrix to generate an aerosol.

[0003] In the prior art, a flow port is provided between the liquid storage chamber and the atomization channel to supply the atomized substrate to the liquid guide structure. To avoid dry burning, the flow port is generally located close to the atomizer core, allowing the liquid guide structure near the atomizer core to store a larger amount of atomized substrate. However, due to the assembly gap between the atomizer core and the entrance of the atomization channel, when the air pressure near this assembly gap changes, the atomized substrate in the liquid guide structure is easily drawn into the atomization channel, resulting in leakage of the atomized substrate. Utility Model Content

[0004] In view of this, the present application provides an atomizer, aiming to improve the problem of leakage of atomized matrix easily occurring at the assembly gap between the atomizing core and the inlet of the atomizing channel in the existing atomizer.

[0005] In a first aspect, an embodiment of the present application provides an atomizer, comprising:

[0006] A housing, used to form at least a portion of the liquid storage chamber and the atomization channel of the atomizer;

[0007] an atomizing core, disposed in the atomizing channel to heat an atomized substrate;

[0008] A mass transfer body, used to transfer the atomized matrix between the liquid storage chamber and the atomizing core, wherein the liquid storage chamber transfers the atomized matrix to the mass transfer body through the flow port;

[0009] a stopper, at least partially disposed between the atomizing core and the inlet of the atomizing channel to prevent the atomized matrix in the mass transfer body from entering the atomizing channel through the stopper;

[0010] Wherein, at least part of the flow opening is arranged between the atomization core and the inlet of the atomization channel.

[0011] Optionally, in some embodiments of the present application, at least a portion of the mass transfer body is disposed between the stopper and the flow port.

[0012] Optionally, in some embodiments of the present application, the atomizer further comprises:

[0013] a base fixedly connected to the housing;

[0014] Wherein, the base at least forms an entrance of the atomization channel, and at least part of the stopper is located between the atomization core and the base.

[0015] Optionally, in some embodiments of the present application, the base has a mounting portion, and the mounting portion is extended along a preset direction;

[0016] The stopper also has a fixing portion, and the fixing portion is sleeved on the mounting portion.

[0017] Optionally, in some embodiments of the present application, the fixing portion and the mounting portion are interference fit.

[0018] Optionally, in some embodiments of the present application, the stopper is formed with a first limiting structure, and the mounting portion abuts against the first limiting structure along a preset direction; and / or

[0019] The base is formed with a second limiting structure, and the stopper abuts against the second limiting structure along a preset direction.

[0020] Optionally, in some embodiments of the present application, the stopper further has a guide hole, and the guide hole is arranged through the stopper along a preset direction;

[0021] The atomizer core also includes:

[0022] Pins, at least part of which are passed through the guide holes.

[0023] Optionally, in some embodiments of the present application, the base is further formed with a seat hole, and the seat hole constitutes a part of the atomization channel;

[0024] The projection contour of the hole wall of the guide hole along the preset direction is inside the projection contour of the hole wall of the seat hole along the preset direction.

[0025] Optionally, in some embodiments of the present application, the base and the stopper are integrally formed.

[0026] In a second aspect, an embodiment of the present application further provides an aerosol generating device, comprising the atomizer as described above.

[0027] The beneficial effect of the present application is that it provides an atomizer and an aerosol generating device that improve the leakage of atomized matrix into the atomization channel by arranging a stopper between the atomization core and the inlet of the atomization channel.

[0028] More specifically, some embodiments of the present application may produce the following specific beneficial effects:

[0029] By arranging a stopper between the atomizing core and the entrance of the atomizing channel, the atomized matrix in the mass transfer body is prevented from entering the atomizing channel through the stopper, thereby forming a seal between the atomizing core and the entrance of the atomizing channel, thereby preventing the atomized matrix in the mass transfer body from being attracted into the atomizing channel due to changes in the air pressure in the atomizing channel, thereby improving the leakage of the atomized matrix. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0031] Figure 1 This is a schematic diagram of the internal structure of an atomizer provided in an embodiment of the present application;

[0032] Figure 2 yes Figure 1 An enlarged view of a portion of

[0033] Figure 3 This is a schematic diagram of the internal structure of a portion of an atomizer provided in an embodiment of the present application;

[0034] Figure 4 This is an exploded view of a portion of an atomizer provided in an embodiment of the present application;

[0035] Figure 5 This is a three-dimensional diagram of a base and a stopper in an atomizer provided in an embodiment of the present application;

[0036] Figure 6 This is an exploded view of a base and a stopper in an atomizer provided in an embodiment of the present application;

[0037] Figure 7 is a cross-sectional view of a base and a stopper in an atomizer provided in an embodiment of the present application;

[0038] Figure 8 This is a three-dimensional diagram of an atomizer core and a stopper in an embodiment of the present application;

[0039] Figure 9 This is an exploded view of an atomizer core and a stopper in an embodiment of the present application;

[0040] Figure 10 This is a cross-sectional view of an atomizer core and a stopper in an embodiment of the present application;

[0041] Figure 11 This is an exploded view of an atomizer provided in an embodiment of the present application;

[0042] Figure 12 This is another schematic diagram of the internal structure of an atomizer provided in an embodiment of the present application;

[0043] Figure 13 yes Figure 12 An enlarged view of a portion of

[0044] Figure 14 Schematic diagram of the structure of an aerosol generating device provided in an embodiment of the present application;

[0045] Figure 15 This is a schematic diagram of the internal structure of an aerosol generating device provided in an embodiment of the present application.

[0046] Reference numerals:

[0047] 100. Atomizer;

[0048] 100a, liquid storage chamber; 100b, atomization channel; 100c, inlet; 100d, outlet; 100e, flow outlet;

[0049] 110. Housing; 112. Nozzle; 113. Airway;

[0050] 120, atomizer core; 121, pin;

[0051] 130, mass transfer body; 130a, central airway;

[0052] 140, seal; 150, atomizing tube;

[0053] C1, central axis;

[0054] 160, base; 160a, seat interior space; 160b, seat hole; 160c, liquid injection hole;

[0055] 161. Mounting portion; 162. Second limiting structure; 163. Limiting protrusion;

[0056] 170, stopper; 171, fixing portion; 172, first limiting structure; 170a, guide hole;

[0057] 181. Liquid filling plug; 182. Bottom cover; 183. Cover; 184. Electrode; 185. Oil-absorbing cotton; 186. First sealing ring; 187. Second sealing ring; 188. Suction nozzle plug;

[0058] 10. Aerosol generating device; 200. Host. DETAILED DESCRIPTION

[0059] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of this application. In addition, it should be understood that the specific embodiments described herein are only used to illustrate and explain the present application and are not used to limit the present application.

[0060] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application pertains. The terms used herein in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0061] In this application, unless otherwise indicated, directional terms such as "upper" and "lower" generally refer to the upper and lower positions of a device in actual use or operation, specifically in the drawing directions of the accompanying drawings; whereas "inner" and "outer" refer to the outline of the device. Furthermore, in the description of this application, the term "including" means "including but not limited to." Terms such as first, second, and third are used merely as labels and do not impose numerical requirements or establish a sequence.

[0062] In this application, "and / or" describes the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. A and B can be singular or plural.

[0063] In this application, "at least one" means one or more, and "plurality" means two or more. "One or more", "at least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, "at least one of a, b, or c", or "at least one of a, b, and c" can all mean: a, b, c, ab (i.e., a and b), ac, bc, or abc, where a, b, and c can be single or plural, respectively.

[0064] The technical solution of this application is as follows:

[0065] First, refer to Figures 1 to 3 As shown, an embodiment of the present application provides an atomizer 100 , including: a housing 110 , an atomizing core 120 , a mass transfer body 130 , a stopper 170 and a base 160 .

[0066] The housing 110 is used to form at least a portion of the liquid storage chamber 100a and the atomization channel 100b of the atomizer 100. It is understood that the liquid storage chamber 100a and the atomization channel 100b can be directly formed by the housing 110, or the liquid storage chamber 100a and the atomization channel 100b are only provided inside the housing 110.

[0067] The atomizing core 120 is arranged in the atomizing channel 100b, and is used to heat the atomizing matrix to generate an aerosol. The aerosol is mixed with the airflow in the atomizing channel 100b and flows out from the outlet 100d of the atomizing channel 100b. The mass transfer body 130 is used to realize the transmission of the atomizing matrix between the liquid storage chamber 100a and the atomizing core 120. The liquid storage chamber 100a transmits the atomizing matrix to the mass transfer body 130 through the flow port 100e. Based on a simple understanding, the flow port 100e is arranged inside the housing 110 as a communication channel between the liquid storage chamber 100a and the mass transfer body 130. Its construction method is not limited, and it can be composed of a single part or a combination of multiple parts.

[0068] The stopper 170 is at least partially disposed between the atomizer core 120 and the inlet 100c of the atomization channel 100b to prevent the atomized substrate in the mass transfer body 130 from entering the atomization channel 100b via the stopper 170. It will be appreciated that an assembly gap is defined between the atomizer core 120 and the base 160 forming the inlet 100c of the atomization channel 100b, and the stopper 170 is installed in this assembly gap to prevent the atomized substrate from flowing through the assembly gap.

[0069] At least a portion of the flow opening 100e is disposed between the atomizer core 120 and the inlet 100c of the atomizing channel 100b, such that the flow opening 100e is disposed close to the atomizer core 120, thereby ensuring that the mass transfer body 130 near the atomizer core 120 has a larger storage capacity for atomized substrate. For example, in the extension direction of the atomizing channel 100b, at least a portion of the flow opening 100e is disposed between the atomizer core 120 and the inlet 100c of the atomizing channel 100b.

[0070] By adopting the above technical solution, a stopper 170 is provided between the atomizing core 120 and the inlet 100c of the atomizing channel 100b, thereby preventing the atomized matrix in the mass transfer body 130 from entering the atomizing channel 100b through the stopper 170. This can form a seal between the atomizing core 120 and the inlet 100c of the atomizing channel 100b, thereby preventing the atomized matrix in the mass transfer body 130 from being attracted into the atomizing channel 100b due to changes in the air pressure in the atomizing channel 100b, thereby improving the leakage of the atomized matrix.

[0071] Optionally, the mass transfer body 130 may be made of oil-conducting cotton or ceramic material.

[0072] In some embodiments, reference Figures 1 to 4 As shown, the atomizer 100 further includes an atomizing tube 150 .

[0073] The atomizing tube 150 is disposed within the housing 110 to divide the interior space of the housing 110 into a liquid storage chamber 100a and at least a portion of an atomizing channel 100b. Exemplarily, the atomizing tube 150 is configured as a body of revolution about a central axis C1. In a radial direction of the central axis C1, at least a portion of the atomizing channel 100b is located within the atomizing tube 150, and at least a portion of the liquid storage chamber 100a is located between the atomizing tube 150 and the housing 110. The atomizing tube 150 is integrally bonded to the housing 110. The gap between the atomizing tube 150 and the housing 110 is sealed using a seal 140.

[0074] The term "combination" in this application may be understood as a detachable connection, an indirect connection, a surface contact, or other methods that may achieve a fixed connection.

[0075] At least part of the mass transfer element is disposed in the atomizing tube 150 . The mass transfer element 130 has a central air passage 130 a that passes through the atomizing channel 100 b in the axial direction. That is, the central air passage 130 a constitutes a part of the atomizing channel 100 b .

[0076] In some embodiments, reference Figure 1 As shown, the housing 110 has or is connected with: a suction nozzle 112 .

[0077] Specifically, the nozzle 112 at least forms the outlet 100d of the atomization channel 100b.

[0078] Exemplarily, the nozzle 112 is further formed with an airway portion 113 extending into the interior of the housing 110 , so that the nozzle 112 can constitute a portion of the atomization channel 100 b and the outlet 100 d , and one end of the atomization tube 150 is mounted to the airway portion 113 .

[0079] As a preferred solution, the nozzle 112 is integrally formed with the housing 110 to simplify the components of the atomizer 100. The housing 110 can be made of a transparent or translucent material to facilitate observation of the remaining amount and color change of the atomized matrix in the atomizer 100.

[0080] In some embodiments, reference Figure 1 and Figure 12 As shown, the atomizer 100 further includes a mouthpiece plug 188. The mouthpiece plug 188 is at least partially inserted into the mouthpiece 112.

[0081] In some embodiments, at least a portion of the mass transfer element 130 is disposed between the stopper 170 and the flow port 100e. The base 160 is fixedly connected to the end of the housing 110 away from the nozzle 112 and is used to at least seal the liquid storage chamber 100a. The base 160 defines at least an inlet 100c for the atomization channel 100b. At least a portion of the stopper 170 is located between the atomizer core 120 and the base 160.

[0082] This solution can not only enable the mass transfer body 130 to effectively absorb the atomized matrix from the flow port 100e, but also effectively prevent this portion of the atomized matrix from entering the atomization channel 100b along the gap between the atomization core 120 and the base 160.

[0083] In some embodiments, reference Figure 2 、 Figures 5 to 7 As shown, the base 160 has a mounting portion 161 . The mounting portion 161 is extended along a predetermined direction. The stopper 170 further has a fixing portion 171 , which is sleeved on the mounting portion 161 .

[0084] For example, the preset direction of the present application is the axial direction of the central axis C1. Of course, the preset direction can also be selected according to the specific assembly method, and there is no specific limitation on this.

[0085] By adopting such a solution and providing the mounting portion 161 , the stopper 170 can be better positioned and the atomizer core 120 can be supported.

[0086] In some embodiments, the fixing portion 171 is interference-fitted with the mounting portion 161. This solution can better prevent the atomized substrate from entering the atomization channel 100b along the gaps between the atomization core 120 and the stopper 170 and between the stopper 170 and the base 160.

[0087] As an alternative, refer to Figure 7 and Figure 10 As shown, the stopper 170 is formed with a first limiting structure 172 , and the mounting portion 161 abuts against the first limiting structure 172 along a preset direction.

[0088] Exemplarily, the first limiting structure 172 is a flange forming the inner wall of the stopper 170 , and the mounting portion 161 of the base 160 is inserted into the mounting portion 161 and abuts against the flange, thereby limiting the axial position of the stopper 170 .

[0089] As another alternative, refer to Figure 7 and Figure 10 As shown, the base 160 is formed with a second limiting structure 162 , and the stopper 170 abuts against the second limiting structure 162 along a preset direction.

[0090] For example, the second limiting structure 162 is a limiting surface formed on the base 160, and the mounting portion 161 protrudes from the limiting surface.

[0091] The mounting portion 161 of the base 160 and the fixing portion 171 of the stopper 170 abut against the limiting surface, thereby limiting the axial position of the stopper 170 .

[0092] It is understandable that the axial positioning of the stopper 170 can be achieved by using either the first limiting structure 172 or the second limiting structure 162 , or by using both the first limiting structure 172 and the second limiting structure 162 .

[0093] With such a solution, the stopper 170 can be more stably arranged at the preset position and play a better stopping role through the first limiting structure 172 and the second limiting structure 162 .

[0094] In some embodiments, reference Figures 5 to 10 As shown, the stopper 170 further has a guide hole 170a, which is arranged along a predetermined direction through the stopper 170. The atomizer core 120 further includes a pin 121. At least part of the pin 121 is arranged to pass through the guide hole 170a.

[0095] With this solution, the guide hole 170a is provided, and the stopper 170 protects the pin 121 of the atomizer core 120, preventing the pin 121 from deforming and increasing the service life. Thus, the stopper 170 of the present application not only performs a sealing function, but also supports and protects the atomizer core 120.

[0096] In some embodiments, reference Figure 2 and Figure 7 As shown, the base 160 is also formed with a seat hole 160b, which at least constitutes the entrance 100c of the atomization channel 100b and a part of the atomization channel 100b; the projection contour of the hole wall of the guide hole 170a along the preset direction is inside the projection contour of the hole wall of the seat hole 160b along the preset direction.

[0097] It can be understood that, by defining the projection profiles of the hole wall of the guide hole 170a and the hole wall of the seat hole 160b, the radial position of the guide hole 170a is within the radial position range of the seat hole 160b.

[0098] By adopting such a solution, the pin 121 can pass through the seat hole 160 b straightly, avoiding interference between the pin 121 and the base 160 and reducing bending of the pin 121 .

[0099] In some embodiments, reference Figure 5 and Figure 6As shown, the base 160 also has a limiting protrusion 163, and a plurality of limiting protrusions 163 are provided. The plurality of limiting protrusions 163 are arranged at intervals in the circumferential direction. At least part of the mass transfer body 130 is inserted between the limiting protrusion 163 and the stopper 170, limiting the radial shaking of the end of the mass transfer body 130 close to the base 160, thereby improving the stability of the mass transfer body 130.

[0100] In some embodiments, the base 160 and the stopper 170 are integrally formed, which can save parts and reduce assembly difficulty.

[0101] In some embodiments, reference Figure 1 、 Figure 2 、 Figures 11 to 13 As shown, the atomizer 100 further includes: a liquid injection plug 181 , a bottom cover 182 and a covering member 183 .

[0102] Specifically, the base 160 is formed with an inner space 160a and a liquid injection hole 160c, the base hole 160b is arranged axially and is connected to the inner space 160a, the liquid injection hole 160c is connected to the liquid storage chamber 100a, and is used to inject the atomized matrix into the liquid storage chamber 100a, and the liquid injection plug 181 is at least partially inserted into the liquid injection hole 160c to block the liquid injection hole 160c. The bottom cover 182 is provided on the base 160 to close the inner space 160a. The cover 183 covers the side of the bottom cover 182 away from the base 160 and part of the base 160 and the shell 110, and is used to cover the specific installation gap between the bottom cover 182, the base 160 and the shell 110 to improve the aesthetics. Specifically, the cover 183 is an iron shell structure.

[0103] In some embodiments, reference Figure 1 、 Figure 3 、 Figures 12 to 14 As shown, the atomizer 100 further includes an electrode 184 . The electrode 184 is fixed to the bottom cover 182 and at least partially passes through the bottom cover 182 and extends into the inner space 160 a of the seat. The pin 121 of the atomizer core 120 is connected to the electrode 184 .

[0104] In some embodiments, reference Figure 2 、 Figure 11 and Figure 12 As shown, the atomizer 100 also includes: oil-absorbing cotton 185; the oil-absorbing cotton 185 is arranged in the seat space and corresponds to the seat hole 160b, and is used to absorb part of the atomized matrix droplets dropped from the atomizing channel 100b, and can also filter the airflow entering the seat hole 160b.

[0105] In some embodiments, reference Figure 2 、 Figures 11 to 13As shown, the atomizer 100 further includes a first sealing ring 186 and a second sealing ring 187. The first sealing ring 186 is disposed between the base 160 and the housing 110 to seal the gap therebetween. The second sealing ring 187 is disposed between the bottom cover 182 and the base 160 to seal the gap therebetween.

[0106] Secondly, refer to Figures 14 and 15 As shown, an embodiment of the present application further provides an aerosol generating device 10, comprising a host 200 and the atomizer 100 as described above.

[0107] Specifically, a control component and a power supply component can be set in the host 200. When the atomizer 100 is connected to the host 200, the power supply component can provide electrical energy to the atomizer core 120 of the atomizer 100, so that the atomizer core 120 generates heat. The specific way in which the atomizer core 120 generates heat depends on the type of atomizer core 120. For example, when the atomizer core 120 includes a structure such as a heating wire, current is directly provided to the atomizer core 120, so that the heating wire heats up. When the atomizer core 120 is a conductor, a changing magnetic field can be provided to the atomizer core 120 to stimulate the atomizer core 120 to generate eddy current to generate heat.

[0108] The control assembly in the main unit 200 may also be provided with a microphone. When the atomizer 100 and the main unit 200 are connected, the microphone can communicate with the atomization channel 100b, so that the microphone can detect the gas flow in the atomization channel 100b, thereby controlling the power supply assembly to provide the mist core with electrical power adapted to the gas flow in the atomization channel 100b.

[0109] The above is a detailed introduction to the nebulizer and aerosol generating device provided in the embodiments of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of ​​the present application. At the same time, for those skilled in the art, based on the ideas of the present application, there may be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present application.

Claims

1. An atomizer, characterized in that: include: A housing, used to form at least a portion of the liquid storage chamber and the atomization channel of the atomizer; an atomizing core, disposed in the atomizing channel to heat an atomized substrate; A mass transfer body, used to transfer the atomized matrix between the liquid storage chamber and the atomizing core, wherein the liquid storage chamber transfers the atomized matrix to the mass transfer body through the flow port; a stopper, at least partially disposed between the atomizing core and the inlet of the atomizing channel to prevent the atomized matrix in the mass transfer body from entering the atomizing channel through the stopper; Wherein, at least part of the flow opening is arranged between the atomization core and the inlet of the atomization channel.

2. The atomizer according to claim 1, characterized in that: At least a portion of the mass transfer body is disposed between the stopper and the flow opening.

3. The atomizer according to claim 1, characterized in that: The atomizer further comprises: a base fixedly connected to the housing; Wherein, the base at least forms an entrance of the atomization channel, and at least part of the stopper is located between the atomization core and the base.

4. The atomizer according to claim 3, characterized in that: The base has a mounting portion, and the mounting portion is extended along a preset direction; The stopper also has a fixing portion, and the fixing portion is sleeved on the mounting portion.

5. The atomizer according to claim 4, characterized in that: The fixing portion and the mounting portion are interference fit.

6. The atomizer according to claim 4, characterized in that: The stopper is formed with a first limiting structure, and the mounting portion abuts against the first limiting structure along a preset direction; and / or The base is formed with a second limiting structure, and the stopper abuts against the second limiting structure along a preset direction.

7. The atomizer according to claim 3, characterized in that: The stopper also has a guide hole, and the guide hole is arranged through the stopper along a preset direction; The atomizer core also includes: Pins, at least part of which are passed through the guide holes.

8. The atomizer according to claim 7, characterized in that: The base is further formed with a seat hole, which constitutes a part of the atomization channel; The projection contour of the hole wall of the guide hole along the preset direction is inside the projection contour of the hole wall of the seat hole along the preset direction.

9. The atomizer according to claim 3, characterized in that: The base and the stopper are integrally formed.

10. An aerosol generating device, characterized in that: The invention comprises an atomizer according to any one of claims 1 to 9.