An aerosol-generating device

Abstract

This application provides an aerosol generating device, which includes an atomizer and a power supply component. The atomizer has an atomization channel. The atomizer and the power supply component together enclose a cavity, the wall of which has multiple air inlets. The air inlets communicate with the atomization channel through the cavity and with the outside of the aerosol generating device. The sum of the minimum cross-sectional areas of all the air inlets is less than the minimum cross-sectional area of ​​the atomization channel. The aerosol generating device in this application uses multiple air inlets. On the one hand, the smaller cross-sectional area of ​​each air inlet helps to increase the airflow velocity, thereby improving the efficiency of expelling larger aerosol generation matrix particles from the aerosol generating device and enhancing the user's inhalation experience. On the other hand, the larger sum of the cross-sectional areas of all the air inlets helps to reduce the suction resistance experienced by the user during aerosol inhalation, improving the user experience.

Description

Technical Field

[0001] This application relates to the field of atomization technology, specifically to an aerosol generating device. Background Technology

[0002] In related technologies, users inhale aerosols generated by an aerosol generating device through a mouthpiece containing such a device.

[0003] The aerosol generating device has an airflow channel for airflow and aerosol flow. During the user's inhalation of the aerosol, the shape and size of the airflow channel limit the flow of the aerosol and the suction resistance felt by the user, directly affecting the user's experience. Utility Model Content

[0004] In view of this, the embodiments of this application aim to provide an aerosol generation device that is beneficial to improving the user's aerosol inhalation experience.

[0005] To achieve the above objectives, the technical solution of this application embodiment is implemented as follows:

[0006] This application provides an aerosol generating apparatus, comprising:

[0007] The atomizer is equipped with an atomization channel;

[0008] The power supply assembly includes an atomizer and a power supply assembly that together enclose a cavity. The cavity wall is provided with multiple air inlets, which are connected to the atomization channel through the cavity and to the outside of the aerosol generating device. The sum of the minimum cross-sectional areas of all the air inlets is less than the minimum cross-sectional area of ​​the atomization channel.

[0009] In some embodiments, at least a portion of the air inlet is located on one side of the cavity along a first direction, and the atomizing channel is located on the other side.

[0010] In some embodiments, in a projection plane perpendicular to the first direction, at least a portion of the air outlet of the air inlet is projected along the first direction within the projection range of the air inlet of the atomizing channel along the first direction.

[0011] In some embodiments, the air inlet includes a first air inlet, and in a projection plane perpendicular to the first direction, the projection of the outlet of the first air inlet along the first direction is located within the projection range of the air inlet of the atomizing channel along the first direction.

[0012] In some embodiments, the geometric center of the projection of the air outlet of the first air inlet along the first direction is the first center, and the geometric center of the projection of the air inlet of the atomizing channel along the first direction is the second center, with the first center coinciding with the second center.

[0013] In some embodiments, the air inlet further includes a second air inlet, wherein the projection of the outlet of the second air inlet along the first direction in a projection plane perpendicular to the first direction is located outside the projection range of the air inlet of the atomizing channel along the first direction.

[0014] In some embodiments, the air inlet includes a first air inlet and a second air inlet, wherein the minimum cross-sectional area of ​​the first air inlet is greater than the minimum cross-sectional area of ​​the second air inlet.

[0015] In some embodiments, there are multiple second air inlets, and the cross-sectional area of ​​the first air inlet is not less than the sum of the cross-sectional areas of all the second air inlets.

[0016] In some embodiments, the equivalent circle diameter of the cross-section of the first air inlet is in the range of 0.8 mm to 1.2 mm;

[0017] And / or, the equivalent circle diameter of the cross-section of the second air inlet is in the range of 0.8 mm to 1.2 mm.

[0018] In some embodiments, the power supply assembly includes a mounting shell and a vent tube. The mounting shell and the atomizer enclose the cavity. The mounting shell has a mounting through hole and an air inlet channel. The mounting through hole connects the air inlet channel and the cavity. The vent tube passes through the mounting through hole. The air inlet hole passes through the vent tube and connects to the air inlet channel. The air inlet channel connects to the outside of the aerosol generating device. The structural strength of the vent tube is higher than the structural strength of the mounting shell.

[0019] The aerosol generating device in this embodiment employs multiple air inlets. On one hand, the small cross-sectional area of ​​each air inlet helps to increase the airflow velocity, thereby improving the efficiency of expelling larger aerosol generating matrix particles from the aerosol generating device and enhancing the user's inhalation experience. On the other hand, the combined cross-sectional area of ​​each air inlet is large, which helps to reduce the suction resistance experienced by the user during aerosol inhalation and improves the user's experience. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the atomizing core in one embodiment of this application;

[0021] Figure 2 This is a schematic diagram of the separator and the fluid guide in another embodiment of this application;

[0022] Figure 3 This is a schematic diagram of the atomizing core in one embodiment of this application;

[0023] Figure 4 This is a schematic diagram of the atomizing core in one embodiment of this application;

[0024] Figure 5 This is a schematic diagram of the atomizing core in one embodiment of this application.

[0025] Explanation of reference numerals in the attached figures

[0026] 10. Atomizer; 10a. Atomization channel; 10b. Cavity; 11. Atomizer coil; 20. Power supply assembly; 20a. Air inlet; 20aa. First air inlet; 20ab. Second air inlet; 20c. Air inlet channel; 21. Mounting housing; 21a. Mounting through hole; 21b. Mounting space; 21c. Connecting hole; 22. Air vent; 23. Battery; 24. Pressure sensor. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and technical features in the embodiments of this application can be combined with each other, and the detailed descriptions in the specific implementation should be understood as explanations of the purpose of this application and should not be regarded as undue limitations on this application.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit this application; the terms “comprising” and “having”, and any variations thereof, in the specification and the foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0029] In the description of the embodiments of this application, technical terms such as "first," "second," and "third" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0030] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0031] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects are in an "or" relationship.

[0032] In the description of the embodiments of this application, for ease of explanation, as shown in the accompanying drawings, the direction of arrow X is taken as the straight line direction of the "first direction".

[0033] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0034] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical term "contact" should be interpreted broadly, and can be direct contact, contact through an intermediate medium layer, contact between two contacting parties with substantially no interaction force, or contact between two contacting parties with interaction force.

[0035] This application provides an aerosol generating device, see below. Figures 1 to 3 The aerosol generating device includes an atomizer 10 and a power supply assembly 20.

[0036] The atomizer 10 is provided with an atomization channel 10a.

[0037] The atomizer 10 and the power supply assembly 20 together enclose a cavity 10b. The wall of the cavity 10b is provided with multiple air inlets 20a. The air inlets 20a are connected to the atomization channel 10a through the cavity 10b. The air inlets 20a are connected to the outside of the aerosol generating device. The sum of the minimum cross-sectional areas of each air inlet 20a is less than the minimum cross-sectional area of ​​the atomization channel 10a.

[0038] The atomizer 10 includes an atomizing core 11, which can absorb an aerosol generating matrix and atomize the aerosol generating matrix by means of heating or other methods. The atomized aerosol generating matrix can enter the atomization channel 10a and mix with the air in the atomization channel 10a to form an aerosol.

[0039] The aerosol within the atomizing channel 10a flows out of the atomizing channel 10a through an opening that connects the atomizing channel 10a to the outside of the aerosol generating device, allowing the user to inhale it. During the user's inhalation of the aerosol, an airflow path is formed from the air inlet 20a to the cavity 10b and then to the atomizing channel 10a, enabling air from outside the aerosol generating device to enter the atomizing channel 10a and then exit the aerosol generating device.

[0040] It is understandable that the air inlet 20a, the cavity 10b, and the atomization channel 10a each form part of the airflow channel inside the aerosol generating device.

[0041] The minimum cross-sectional area of ​​the air inlet 20a refers to the smallest cross-sectional area among all the sections of the air inlet 20a perpendicular to its own extension direction.

[0042] The minimum cross-sectional area of ​​the atomizing channel 10a refers to the cross-sectional area of ​​the atomizing channel 10a that is perpendicular to its own extension direction and has the smallest area.

[0043] The sum of the minimum cross-sectional areas of all air inlets 20a is less than the minimum cross-sectional area of ​​the atomizing channel 10a, so the airflow velocity is mainly determined by the sum of the cross-sectional areas of all air inlets 20a, rather than by the size of the cross-sectional area of ​​the atomizing channel 10a. Therefore, by controlling the sum of the minimum cross-sectional areas of all air inlets 20a, the change in airflow velocity within the atomizing channel 10a can be adjusted.

[0044] It is understandable that the particle sizes of the aerosol-generating matrix after atomization vary. The faster the airflow velocity within the atomization channel 10a, the easier it is for larger aerosol-generating matrix particles to be carried out of the aerosol generation device by the airflow. Therefore, by providing multiple air inlets 20a, while keeping the sum of the cross-sectional areas of each air inlet 20a constant, the airflow velocity within a single air inlet 20a can be increased, thereby improving the airflow velocity within the atomization channel 10a.

[0045] The aerosol generating device in this embodiment employs multiple air inlets 20a. On one hand, the small cross-sectional area of ​​a single air inlet 20a is beneficial for increasing the airflow velocity, thereby improving the efficiency of expelling larger aerosol generating matrix particles from the aerosol generating device and enhancing the user's inhalation experience. On the other hand, the combined cross-sectional area of ​​all air inlets 20a is large, which helps reduce the suction resistance experienced by the user during aerosol inhalation, thus improving the user's experience.

[0046] The cavity 10b can be directly connected to the atomizing channel 10a or directly connected to the air inlet 20a.

[0047] The suction resistance experienced by the user during inhalation can be adjusted by regulating the sum of the cross-sectional areas of each air inlet 20a.

[0048] The power supply assembly 20 is electrically connected to the atomizer 10, enabling the power supply assembly 20 to supply power to the atomizer 10.

[0049] It is understandable that part of the wall of cavity 10b is formed by atomizer 10 and another part is formed by power supply assembly 20. Therefore, air inlet 20a can be set in atomizer 10 or power supply assembly 20.

[0050] It is understandable that one end of the air inlet 20a can be directly connected to the outside of the aerosol generating device, or it can be indirectly connected to the outside of the aerosol generating device through other channels in the aerosol generating device.

[0051] In some embodiments, the air inlet 20a is located on the side of the cavity 10b perpendicular to the length direction of the aerosol generating device. This helps to reduce the size required for the air inlet 20a to directly contact the outside of the aerosol generating device, and allows external air to enter the atomization channel 10a more quickly.

[0052] The length direction of the aerosol generating device refers to the straight line direction in which the aerosol generating device has the largest three-dimensional outer contour dimension.

[0053] In some embodiments, see Figure 2 and Figure 3 At least a portion of the air inlet 20a is located on one side of the cavity 10b along the first direction, and the atomizing channel 10a is located on the other side. That is, at least a portion of the air inlet 20a and the atomizing channel 10a are arranged opposite each other.

[0054] This helps reduce the number of times and the amplitude of airflow turning during the process from the air inlet 20a to the cavity 10b and then to the atomization channel 10a, thereby reducing the suction resistance felt by the user during aerosol inhalation and improving the user experience.

[0055] In some embodiments, see Figure 2 All air inlets 20a are located on one side of the cavity 10b along the first direction, and the atomizing channel 10a is located on the other side. In some embodiments, see [reference needed]. Figure 2 The first direction is the length direction of the aerosol generating device.

[0056] In some embodiments, the portion of the atomizing channel 10a that communicates with the cavity 10b extends along a first direction.

[0057] In some embodiments, in a projection plane perpendicular to the first direction, at least a portion of the air outlet of the air inlet 20a is projected along the first direction within the projection range of the air inlet of the atomizing channel 10a along the first direction.

[0058] Therefore, a portion of the airflow exiting from the air inlet 20a can travel in a straight line without turning and entering the atomizing channel 10a. This helps reduce the suction resistance experienced by the user during aerosol inhalation, improving the user experience.

[0059] It is possible that the projection of a portion of each of the multiple air inlets 20a along the first direction is located within the projection range of the air inlet of the atomizing channel 10a along the first direction; or it is possible that the projection of a portion of only one air inlet 20a along the first direction is located within the projection range of the air inlet of the atomizing channel 10a along the first direction.

[0060] The air inlet of the atomizing channel 10a is the opening at the location where the atomizing channel 10a connects with the cavity 10b.

[0061] The air outlet of the air inlet 20a is the opening at the position where the air inlet 20a connects with the cavity 10b.

[0062] In some embodiments, see Figure 3 , Figure 4 and Figure 5 The air inlet 20a includes a first air inlet 20aa. In a projection plane perpendicular to the first direction, the projection of the outlet of the first air inlet 20aa along the first direction is located within the projection range of the air inlet of the atomizing channel 10a along the first direction.

[0063] In other words, the airflow flowing out from the first air inlet 20aa can pass through the cavity 10b in the first direction and directly enter the atomization channel 10a.

[0064] This helps improve the efficiency of airflow entering the atomization channel 10a, reduces the suction resistance felt by the user during aerosol inhalation, and improves the user experience.

[0065] It is understandable that the minimum cross-sectional area of ​​the first air inlet 20aa is smaller than the minimum cross-sectional area of ​​the atomizing channel 10a.

[0066] The number of first air intake ports 20aa can be one or more.

[0067] It is understandable that the first air inlet 20aa is positioned opposite to the atomizing channel 10a.

[0068] In some embodiments, the geometric center of the projection of the air outlet of the first air inlet 20aa along the first direction is the first center, and the geometric center of the projection of the air inlet of the atomizing channel 10a along the first direction is the second center, and the first center and the second center coincide.

[0069] This allows the airflow from the first air inlet 20aa to enter the atomization channel 10a more efficiently, further reducing the suction resistance experienced by the user during aerosol inhalation and improving the user experience.

[0070] The specific shape of the projection of the air outlet of the first air inlet 20aa can be a circle, an ellipse, a regular polygon, etc.

[0071] The specific shape of the projection of the air inlet of the atomizing channel 10a can be a circle, an ellipse, a regular polygon, etc.

[0072] The shape of the projection of the air outlet of the first air inlet 20aa can be the same as or different from the shape of the projection of the air inlet of the atomizing channel 10a.

[0073] In some embodiments, see Figure 3 The air inlet 20a also includes a second air inlet 20ab. In the projection plane perpendicular to the first direction, the projection of the outlet of the second air inlet 20ab along the first direction is outside the projection range of the air inlet of the atomizing channel 10a along the first direction.

[0074] In other words, the airflow flowing out from the second air inlet 20ab needs to be turned after passing through the cavity 10b before entering the atomization channel 10a.

[0075] Thus, by setting the second air inlet 20ab, the airflow rate entering the cavity 10b can be increased, and by configuring different sizes and numbers of second air inlets 20ab, the suction resistance felt by the user during the inhalation of aerosol can be adjusted.

[0076] The specific number of the second air intake 20ab is not limited; it can be one or more, such as two, three, four, five, etc.

[0077] In some embodiments, see Figure 3 At least a portion of the second air inlet 20ab is located on the wall of the cavity 10b on the side opposite to the air inlet of the atomizing channel 10a. In other words, the second air inlet 20ab and the first air inlet 20aa are located on the same side of the cavity 10b along the first direction. This simplifies the manufacturing process of the second air inlet 20ab and the first air inlet 20aa.

[0078] In some embodiments, a portion of the second air inlet 20ab is located on the wall of the cavity 10b perpendicular to the first direction, in order to reduce the length of the airflow path connecting the second air inlet 20ab to the outside.

[0079] In some embodiments, a portion of the second air inlet 20ab and the air inlet of the atomizing channel 10a are located on the wall of the cavity 10b on the same side along the first direction.

[0080] In some embodiments where a first air inlet 20aa and a second air inlet 20ab are provided, the minimum cross-sectional area of ​​the first air inlet 20aa is greater than the minimum cross-sectional area of ​​the second air inlet 20ab.

[0081] The minimum cross-sectional area of ​​the first air inlet 20aa refers to the smallest cross-sectional area among all cross-sections of the first air inlet 20aa perpendicular to its own extension direction.

[0082] The minimum cross-sectional area of ​​the second air inlet 20ab refers to the cross-sectional area of ​​the second air inlet 20ab that is perpendicular to its own extension direction and has the smallest area.

[0083] This allows the airflow to mainly flow out from the first air inlet 20aa and enter the atomization channel 10a, which helps to improve the suction resistance felt by the user when inhaling the aerosol.

[0084] In some embodiments where there are multiple second air inlets 20ab, the cross-sectional area of ​​the first air inlet 20aa is not less than the sum of the cross-sectional areas of each of the second air inlets 20ab.

[0085] This allows the airflow to enter the atomization channel 10a primarily through the first air inlet 20aa, which helps to improve the suction resistance experienced by the user during aerosol inhalation.

[0086] In some other embodiments where there are multiple second air inlets 20ab, the cross-sectional area of ​​the first air inlet 20aa is smaller than the sum of the cross-sectional areas of all the second air inlets 20ab. This is beneficial for enriching the user's suction experience.

[0087] In some embodiments, the equivalent circle diameter of the cross-section of the first air inlet 20aa ranges from 0.8 mm (millimetre) to 1.2 mm.

[0088] The equivalent circle diameter of the cross-section of the first air inlet 20aa refers to the diameter of a circle with the same area as the cross-section of the first air inlet 20aa.

[0089] This helps ensure that the airflow through the first air inlet 20aa meets the requirements, and helps reduce the suction resistance felt by the user during the inhalation of aerosol.

[0090] The specific value of the equivalent circle diameter of the cross-section of the first air inlet 20aa can be 0.8mm, 0.85mm, 0.9mm, 0.95mm, 1mm, 1.05mm, 1.1mm, 1.15mm, 1.2mm, etc.

[0091] The cross-sectional shape of the first air inlet 20aa can be circular, elliptical, regular polygonal, etc.

[0092] In some embodiments, the equivalent circle diameter of the cross-section of the second air inlet 20ab ranges from 0.8 mm to 1.2 mm.

[0093] The equivalent circle diameter of the cross-section of the second air intake 20ab refers to the diameter of a circle with the same area as the cross-section of the second air intake 20ab.

[0094] This helps ensure that the airflow through the second air inlet 20ab meets the requirements, and helps reduce the suction resistance felt by the user during the inhalation of aerosols.

[0095] The specific value of the equivalent circle diameter of the cross-section of the second air inlet 20ab can be 0.8mm, 0.85mm, 0.9mm, 0.95mm, 1mm, 1.05mm, 1.1mm, 1.15mm, 1.2mm, etc.

[0096] The cross-sectional shape of the second air intake 20ab can be circular, elliptical, regular polygonal, etc.

[0097] The shape of the cross-section of the first air inlet 20aa can be the same as or different from the cross-section of the second air inlet 20ab.

[0098] In some embodiments, see Figure 3 The power supply assembly 20 includes a mounting shell 21 and an air vent 22. The mounting shell 21 and the atomizer 10 form a cavity 10b. The mounting shell 21 is provided with a mounting through hole 21a and an air inlet channel 20c. The mounting through hole 21a connects the air inlet channel 20c and the cavity 10b. The air vent 22 passes through the mounting through hole 21a. The air inlet 20a passes through the air vent 22 and connects to the air inlet channel 20c. The air inlet channel 20c connects to the outside of the aerosol generating device. The structural strength of the air vent 22 is higher than that of the mounting shell 21.

[0099] In other words, the air inlets 20a are all located on the power supply assembly 20.

[0100] Air from outside the aerosol generating device enters the air intake channel 20c, passes through the vent pipe 22, and then enters the cavity 10b.

[0101] The structural strength of the vent pipe 22 is higher than that of the mounting shell 21. This means that even if the mounting shell 21 deforms under external force during use, the vent pipe 22 is less likely to deform due to its higher structural strength. Consequently, the shape and size of the air inlet 20a are less likely to change, which helps to ensure that the airflow from the air inlet 20a into the cavity 10b meets the requirements and improves the user experience.

[0102] It is understood that at least a portion of the wall of the mounting hole 21a is fitted with the vent pipe 22 to fix their relative positions through friction between them.

[0103] In some embodiments, the wall of the mounting hole 21a and the vent pipe 22 are interference fit.

[0104] In some embodiments, see Figure 2 and Figure 3 The mounting housing 21 has a mounting space 21b, which can be used to arrange the battery 23.

[0105] In some embodiments, a portion of the mounting space 21b forms an air intake passage 20c, which facilitates a more compact structure for the power supply assembly 20.

[0106] In some embodiments, the vent tube 22 is made of a metal material, such as aluminum alloy or stainless steel, and the mounting shell 21 is made of engineering plastic. This makes it easy to insert the vent tube 22 into the mounting through hole 21a, and the mounting shell 21 has a certain elasticity, which can fix the vent tube 22 by elastic deformation of the wall surface of the mounting through hole 21a.

[0107] In some embodiments, see Figure 2 The aerosol generating device also includes a pressure sensor 24. The mounting housing 21 is provided with a connecting mounting cavity, which is connected to the cavity 10b. The pressure sensor 24 is located in the mounting cavity. Thus, the pressure sensor 24 can control the timing of the power supply component 20 supplying power to the atomizer 10 by sensing the pressure change in the cavity 10b.

[0108] In some embodiments, see Figure 2 The mounting housing 21 is provided with a connecting hole 21c, which connects the mounting space 21b to the outside of the aerosol generating device. The connecting hole 21c and the mounting space 21b together form an air intake channel 20c.

[0109] The various embodiments / implementations provided in this application can be combined with each other without creating contradictions.

[0110] The above description is merely a preferred embodiment of this application and is not intended to limit the application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. An aerosol-generating device, characterized by, include: The atomizer is equipped with an atomization channel; The power supply assembly includes an atomizer and a power supply assembly that together enclose a cavity. The cavity wall is provided with multiple air inlets, which are connected to the atomization channel through the cavity and to the outside of the aerosol generating device. The sum of the minimum cross-sectional areas of all the air inlets is less than the minimum cross-sectional area of ​​the atomization channel.

2. The aerosol-generating device of claim 1, wherein, At least a portion of the air inlet is located on one side of the cavity along the first direction, and the atomizing channel is located on the other side.

3. The aerosol-generating device of claim 2, wherein, In a projection plane perpendicular to the first direction, at least a portion of the air outlet of the air inlet is projected along the first direction within the projection range of the air inlet of the atomizing channel along the first direction.

4. The aerosol-generating device of claim 2, wherein, The air inlet includes a first air inlet, and in a projection plane perpendicular to the first direction, the projection of the air outlet of the first air inlet along the first direction is located within the projection range of the air inlet of the atomizing channel along the first direction.

5. The aerosol-generating device of claim 4, wherein, The geometric center of the projection of the air outlet of the first air inlet along the first direction is the first center, and the geometric center of the projection of the air inlet of the atomizing channel along the first direction is the second center, and the first center and the second center coincide.

6. The aerosol-generating device of claim 2, wherein, The air inlet also includes a second air inlet. In a projection plane perpendicular to the first direction, the projection of the outlet of the second air inlet along the first direction is outside the projection range of the air inlet of the atomizing channel along the first direction.

7. The aerosol-generating device of claim 1, wherein, The air inlet includes a first air inlet and a second air inlet, wherein the minimum cross-sectional area of ​​the first air inlet is greater than the minimum cross-sectional area of ​​the second air inlet.

8. The aerosol-generating device of claim 7, wherein, There are multiple second air inlets, and the cross-sectional area of ​​the first air inlet is not less than the sum of the cross-sectional areas of all the second air inlets. 9.The aerosol-generating device of claim 7, wherein, The equivalent circle diameter of the cross-section of the first air inlet is in the range of 0.8 mm to 1.2 mm; And / or, the equivalent circle diameter of the cross-section of the second air inlet is in the range of 0.8 mm to 1.2 mm. 10.The aerosol-generating device of claim 1, wherein, The power supply assembly includes a mounting shell and a vent tube. The mounting shell and the atomizer form the cavity. The mounting shell has a mounting through hole and an air inlet channel. The mounting through hole connects the air inlet channel and the cavity. The vent tube passes through the mounting through hole. The air inlet hole passes through the vent tube and connects to the air inlet channel. The air inlet channel connects to the outside of the aerosol generating device. The structural strength of the vent tube is higher than that of the mounting shell.

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