Aerosol generating device

Abstract

An aerosol generating device is provided with an air inlet channel and an atomizing channel, the air inlet channel comprises a first air inlet cavity and a second air inlet cavity communicated with the atomizing channel, and a communicating hole communicated with the first air inlet cavity and the second air inlet cavity is formed in the air inlet cavity; the aerosol generating device is further provided with a first air inlet and a second air inlet which are communicated with the first air inlet cavity, the first air inlet and the second air inlet are arranged in a staggered mode in the extending direction of the atomization channel, and / or the included angle between the orientation of the first air inlet and the orientation of the second air inlet is not zero. The first air inlet and the second air inlet are both communicated with the atomization channel through the communicating holes, on one hand, the probability that all the air inlets are blocked or shielded can be reduced by arranging the first air inlet and the second air inlet which are different in position and / or orientation, and the air inlet amount and normal work of the aerosol generating device are ensured; on the other hand, the air inflow of the atomization channel can be adjusted by adjusting the size of the communicating hole, and the consistency of mass production of the aerosol generating device is ensured.

Description

Technical Field

[0001] The present application relates to the technical field of aerosol generation, and in particular to an aerosol generating device. Background Art

[0002] An aerosol generating device is a device that heats an aerosol generating substrate to generate an aerosol from the aerosol generating substrate.

[0003] The aerosol generating device has an atomizing channel, an air inlet channel and an air inlet. The atomizing channel is used for inserting the aerosol generating matrix, and the atomizing channel is also used for discharging the generated aerosol. The air inlet can be connected to the atomizing channel through the air inlet channel, and the air inlet is connected to the outside of the aerosol generating device. Under the action of negative pressure in the atomizing channel, the external airflow can enter the atomizing channel along the air inlet and the air inlet channel in sequence. Usually, the air inlet is located on the shell of the aerosol generating device, and there is a risk that the air inlet is blocked or blocked by external dust. Once the air inlet is blocked or blocked, it will directly lead to a reduction in the air intake in the atomizing channel. If the air inlet is completely blocked, the entire aerosol generating device will not work properly. Utility Model Content

[0004] The present application provides an aerosol generating device to solve the technical problem that the air inlet is blocked or clogged, resulting in a reduction in the air intake volume, or even the entire aerosol generating device cannot work normally.

[0005] According to the first aspect, an embodiment provides an aerosol generating device, comprising an air inlet channel and an atomizing channel, wherein the atomizing channel is used to accommodate an aerosol generating substrate, the air inlet channel comprises a first air inlet cavity and a second air inlet cavity, the second air inlet cavity is communicated with the atomizing channel, a communicating hole is provided in the air inlet channel, and the first air inlet cavity is communicated with the second air inlet cavity through the communicating hole;

[0006] The aerosol generating device also has a first air inlet and a second air inlet connected to the first air inlet cavity; the first air inlet and the second air inlet are staggered in the extension direction of the atomization channel, and / or the angle between the direction of the first air inlet and the direction of the second air inlet is not zero.

[0007] In an optional embodiment, the aerosol generating device includes a device body and an atomizer tube installed in the device body, the atomizer channel is located in the atomizer tube, the air inlet channel is arranged around the atomizer channel, and the air inlet channel is located between the device body and the tube wall of the atomizer tube; the first air inlet cavity and the second air inlet cavity are arranged in the extension direction of the atomizer channel.

[0008] In an optional embodiment, in the radial direction of the atomization channel, the first air inlet is located on the inner side of the air inlet channel, and the second air inlet is located on the outer side of the air inlet channel.

[0009] In an optional embodiment, the air inlet channel has a first end and a second end in the extension direction of the atomization channel, the air inlet channel is connected to the atomization channel at the second end, and the first air inlet is located at the first end.

[0010] In an optional embodiment, the device body includes a skeleton part and a suction nozzle piece connected to the skeleton part, the skeleton part and the suction nozzle piece enclose a mounting cavity, and the atomization tube is located in the mounting cavity.

[0011] In an optional embodiment, the suction nozzle has an outer protrusion protruding from the skeleton part, the second air inlet is located on the outer protrusion, the second air inlet is arranged close to the skeleton part, and the second air inlet faces away from the atomization channel.

[0012] In an optional embodiment, one end of the atomizing tube in the extension direction is inserted into the mouthpiece, and the other end is spaced apart from the skeleton part;

[0013] The first air inlet is located on the tube wall of the atomizing tube, and the atomizing tube and the nozzle piece are enclosed to form a connecting airway arranged in the extending direction of the atomizing channel, and the connecting airway connects the first air inlet and the first air inlet cavity.

[0014] In an optional embodiment, a hook structure is provided on the outer tube wall of the atomizer tube, the atomizer tube is installed in the installation cavity through the hook structure, and the communicating hole is provided on the hook structure.

[0015] In an optional embodiment, the skeleton part has a mounting recess, the suction nozzle part has a protruding part that cooperates with the mounting recess, a first protrusion is arranged on the side wall of the protruding part, a second protrusion is arranged on the side wall of the mounting recess, the protruding part is inserted into the mounting recess, and the first protrusion and the second protrusion are abutted against each other in the insertion direction of the suction nozzle part and the skeleton part.

[0016] In an optional embodiment, the skeleton part includes a shell and a bracket, the shell has an opening, the bracket is located in the shell, the bracket is sealed with the opening, and the shell, the bracket and the nozzle piece are enclosed to form the installation cavity;

[0017] The aerosol generating device further comprises a heating element, wherein the heating element is mounted on the bracket and has an insertion section extending into the atomizing tube, wherein the insertion section is used for being inserted into the aerosol generating matrix.

[0018] According to the aerosol generating device of the above embodiment, the aerosol generating device has an air inlet channel and an atomizing channel, the atomizing channel is used to accommodate the aerosol generating substrate, the air inlet channel includes a first air inlet cavity and a second air inlet cavity, the second air inlet cavity is connected to the atomizing channel, a connecting hole is arranged in the air inlet cavity, and the first air inlet cavity is connected to the second air inlet cavity through the connecting hole; the aerosol generating device also has a first air inlet port and a second air inlet port connected to the first air inlet cavity; because the first air inlet port and the second air inlet port are staggered in the extension direction of the atomizing channel, and / or the first The angle between the direction of the air inlet and the direction of the second air inlet is not zero, and the first air inlet and the second air inlet are both connected to the atomization channel through the connecting hole. In this way, on the one hand, the probability of all air inlets being blocked or blocked can be reduced by setting the first air inlet and the second air inlet with different positions and / or directions, so as to ensure the air intake in the atomization channel and ensure the normal operation of the aerosol generating device; on the other hand, the size of the connecting hole can be adjusted or controlled to adjust the air intake of the atomization channel to ensure the consistency of mass production of the aerosol generating device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of a three-dimensional structure of an aerosol generating device and an aerosol generating substrate in an embodiment;

[0020] Figure 2 Schematic diagram of the internal structure of an aerosol generating device in one embodiment.

[0021] In the figure: 10, device body; 1, skeleton part; 11, shell; 111, second convex part; 12, bracket; 2, nozzle piece; 21, nozzle end; 211, ring structure; 212, insertion port; 22, insertion end; 23, slot; 24, first convex part; 25, second air inlet; 26, outer convex part; 3, mounting cavity; 4, atomizing tube; 41, hook structure; 411, ring plate; 412, connecting hole; 413, hook; 42, first air inlet; 43, connecting slot; 5, circuit board; 6, heating element; 7, air inlet channel; 71, first air inlet cavity; 72, second air inlet cavity; 8, atomizing channel; 9, aerosol generating matrix. DETAILED DESCRIPTION

[0022] The present application is further described in detail below by specific embodiments in conjunction with the accompanying drawings. Wherein similar elements in different embodiments adopt associated similar element numbers. In the following embodiments, many detailed descriptions are intended to enable the present application to be better understood. 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, and methods. In some cases, some operations related to the present application are not shown or described in the specification, in order to avoid the core part of the present application being overwhelmed by too much description, and 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 description in the specification and the general technical knowledge in the art.

[0023] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate manner to form various implementations, and the operation steps involved in each embodiment can also be replaced or adjusted in a sequence in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for the purpose of clearly describing a certain embodiment and do not mean that the composition and / or sequence are necessary.

[0024] The serial numbers of the components in this document, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings).

[0025] The present application discloses an aerosol generating device. Figure 1 and Figure 2 The aerosol generating device comprises an air inlet channel 7 and an atomizing channel 8. The atomizing channel 8 is used for inserting an aerosol generating substrate 9. The aerosol generating substrate 9 is heated in the atomizing channel 8 to generate an aerosol. The atomizing channel 8 is also used for discharging the generated aerosol. The air inlet channel 7 comprises a first air inlet cavity 71 and a second air inlet cavity 72. The second air inlet cavity 72 is connected to the atomizing channel 8. A connecting hole 412 is provided in the air inlet channel 7. The first air inlet cavity 71 is connected to the second air inlet cavity 72 through the connecting hole 412.

[0026] The aerosol generating device is also provided with a first air inlet 42 and a second air inlet 25, so that the first air inlet 42 and the second air inlet 25 are both connected to the first air inlet cavity 71, so that the first air inlet 42 and the second air inlet 25 can be connected to the atomizing channel 8 only through the connecting hole 412, that is, the airflow entering the air inlet channel 7 from the first air inlet 42 and from the second air inlet 25 needs to pass through the connecting hole 412 to enter the atomizing channel 8, so that a large change in the air intake amount of the atomizing channel 8 due to the blocking of the first air inlet 42 or the second air inlet 25 can be avoided. The size of the connecting hole 412 can be controlled or adjusted during processing to ensure the consistency of batch aerosol generating devices; in addition, the first air inlet 42 and the second air inlet 25 are staggered in the extension direction of the atomization channel 8, and / or the angle between the orientation of the first air inlet 42 and the orientation of the second air inlet 25 is not zero. In this way, the probability of all air inlets being blocked or blocked can be reduced by setting the first air inlet 42 and the second air inlet 25 with different positions and / or orientations, which helps to ensure the air intake of the atomization channel 8 and helps to achieve normal operation of the aerosol generating device.

[0027] In one embodiment, please refer to Figure 2 The first air inlet 42 and the second air inlet 25 are both connected to the outside of the aerosol generating device. When the aerosol generating device is in use, the atomization channel 8 is generally extended in the up and down directions. The first air inlet 42 can be located at the top of the aerosol generating device, and the second air inlet 25 can be located at the side of the aerosol generating device, so that the first air inlet 42 adopts the top air intake method, and the second air inlet 25 adopts the side air intake method. In this way, the first air inlet 42 and the second air inlet 25 are staggered in the extension direction of the atomization channel 8 to reduce the probability that the first air inlet 42 and the second air inlet 25 are blocked or covered by dust or the user's hands.

[0028] Of course, in other embodiments, one of the first air inlet 42 or the second air inlet 25 can be arranged at the bottom of the aerosol generating device, so as to adopt the bottom air intake method, which also helps to reduce the probability that the air inlets are blocked or blocked by dust or the user's hands. Or in other embodiments, a third air inlet can be arranged, so that the third air inlet is located at the bottom of the aerosol generating device, and the third air inlet adopts the bottom air intake method, and the third air inlet is connected to the first air inlet cavity 71 through the air flow channel, so as to increase the number of air inlets with different positions, and further reduce the probability that all air inlets are blocked or blocked, thereby ensuring the air intake amount of the atomization channel 8 and realizing the normal operation of the aerosol generating device.

[0029] It is also possible to set the first air inlet 42 and the second air inlet 25 to have a non-zero angle, that is, the first air inlet 42 and the second air inlet 25 are different in direction. For example, in one embodiment, please refer to Figure 2 The first air inlet 42 can be arranged to face radially inward in the radial direction of the atomizing channel 8, and the second air inlet 25 can be arranged to face radially outward in the radial direction of the atomizing channel 8; or in another embodiment, one of the first air inlet 42 and the second air inlet 25 can be arranged to face horizontally, and the other can face upward or downward, so as to avoid a single-sided obstruction from blocking or shielding the first air inlet 42 and the second air inlet 25 at the same time, which can also reduce the probability of all air inlets being blocked.

[0030] In other embodiments, the first air inlet 42 and the second air inlet 25 can be set to simultaneously meet the requirements of staggered positions and different orientations in the extension direction of the atomization channel 8, thereby further reducing the probability of all air inlets being blocked and better ensuring the air intake volume of the atomization channel 8 and the normal operation of the aerosol generating device.

[0031] In one embodiment, please refer to Figure 2 , a plurality of first air inlets 42 and a plurality of second air inlets 25 can be respectively provided, and a plurality of first air inlets 42 can be provided at the same height in the extension direction of the atomization channel 8, and the plurality of first air inlets 42 are arranged around the atomization channel 8, and a plurality of second air inlets 25 can be provided at the same height in the extension direction of the atomization channel 8, and the plurality of second air inlets 25 are arranged around the atomization channel 8, so that the probability of all air inlets being blocked or blocked can be further reduced.

[0032] In some other embodiments, the multiple first air inlets 42 or the multiple second air inlets 25 may be arranged in the same direction, and the multiple first air inlets 42 or the multiple second air inlets 25 may be arranged at intervals in the extension direction of the atomization channel 8 .

[0033] Specifically, in one embodiment, please continue to refer to Figure 2The aerosol generating device comprises a device body 10 and an atomizing tube 4 installed in the device body 10. The atomizing tube 4 can be clamped in the device body 10 in the axial direction thereof, or can also be clamped in the device body 10. The atomizing channel 8 is located in the atomizing tube 4. The air inlet channel 7 is arranged around the atomizing channel 8. The air inlet channel 7 and the atomizing channel 8 are arranged correspondingly in the extending direction of the atomizing channel 8. The air inlet channel 7 can be located between the device body 10 and the tube wall of the atomizing tube 4. The first air inlet cavity 71 and the second air inlet cavity 72 are arranged in the extending direction of the atomizing channel 8, so that the air inlet cavity 71 and the second air inlet cavity 72 are arranged in the extending direction of the atomizing channel 8. The air intake airflow in the air channel 7 contacts the outer tube wall of the atomizing tube 4, and can utilize the heat on the atomizing tube 4 to heat the airflow in the air intake channel 7, thereby improving the heat utilization rate of the aerosol generating device and reducing the energy consumption of the aerosol generating device; and the air intake channel 7 is arranged around the atomizing channel 8, so that the air intake channel 7 and the atomizing channel 8 are arranged correspondingly in the axial direction of the atomizing channel 8, which also helps to concentrate the heat of the aerosol generating device at the atomizing channel 8, helps to reduce the heat transferred to the bottom of the aerosol generating device, and improves the heat utilization rate of the aerosol generating device.

[0034] In another embodiment, the air inlet channel 7 and the atomization channel 8 can be staggered in the extension direction of the atomization channel 8. The air inlet channel 7 can adopt an annular air inlet channel structure arranged around the atomization channel 8, and can also adopt a cylindrical air inlet channel structure directly connected to the atomization channel 8. In this way, it is possible to adapt to the bottom air intake and avoid setting an airway in the device body 10 that is connected to the air inlet located at the bottom of the aerosol generating device, which helps to simplify the structure of the aerosol generating device with a bottom air intake method.

[0035] In some embodiments, a device body 10 is provided including a skeleton portion 1 and a suction nozzle piece 2 connected to the skeleton portion 1. The suction nozzle piece 2 and the skeleton portion 1 are arranged in the extension direction of the atomization channel 8. After the suction nozzle piece 2 is connected to the skeleton portion 1, the suction nozzle piece 2 and the skeleton portion 1 are enclosed to form an installation cavity 3, so that the atomization tube 4 is arranged in the installation cavity 3.

[0036] As an example, please continue to refer to Figure 2 The skeleton part 1 may be provided with a mounting recess, the mouthpiece 2 may be provided with a protruding portion cooperating with the mounting recess, the mouthpiece 2 may be provided with a cylindrical structure with openings at both ends, the mouthpiece 2 is arranged in the extension direction of the atomization channel 8, the mouthpiece 2 has a mouthpiece end 21 and an insertion end 22 in its extension direction, the mouthpiece end 21 is provided with an insertion port 212 for inserting the aerosol generating matrix 9, the insertion end 22 may be used as a protruding portion to be plugged into the mounting recess on the skeleton part 1, after the mouthpiece 2 is plugged into place with the skeleton part 1, the skeleton part 1 blocks the opening of the insertion end 22 of the mouthpiece 2 to enclose the mouthpiece 2 to form a mounting cavity 3.

[0037] In another example, a protruding portion can also be set on the skeleton portion 1, and the suction nozzle piece 2 is sleeved on the protruding portion of the skeleton portion 1. After the suction nozzle piece 2 is connected to the skeleton portion 1, the skeleton portion 1 blocks the opening of the insertion end 22 of the suction nozzle piece 2 to enclose the suction nozzle piece 2 to form an installation cavity 3.

[0038] The nozzle 2 can be connected to the frame part 1 by a snap-fit ​​structure, or can also be connected to the frame part 1 by a threaded connection. Figure 2 A first protrusion 24 may be provided on the outer peripheral surface of the insertion end 22 of the nozzle piece 2, and a second protrusion 111 may be provided on the side wall of the mounting recess of the skeleton part 1. When the nozzle piece 2 is inserted into the skeleton part 1, after the first protrusion 24 passes over the second protrusion 111, the nozzle piece 2 is connected to the skeleton part 1. The first protrusion 24 and the second protrusion 111 may be abutted against each other in the extension direction of the atomization channel 8 to prevent the nozzle piece 2 from being separated from the skeleton part 1.

[0039] In one embodiment, the atomizer tube 4 and the air inlet channel 7 are both located in the installation cavity 3 . The air inlet channel 7 is an annular channel, and the air inlet channel 7 is formed by the cavity wall of the installation cavity 3 and the tube wall of the atomizer tube 4 .

[0040] Please refer to Figure 2 The atomizer tube 4 can be installed in the installation cavity 3 through the hook structure 41. Specifically, the hook structure 41 can be arranged on the outer tube wall of the atomizer tube 4. The hook structure 41 includes an annular plate 411 extending radially outward from the atomizer tube 4. The outer peripheral surface of the annular plate 411 can contact the cavity wall of the installation cavity 3, that is, the inner wall of the suction nozzle 2. In this way, the annular plate 411 of the hook structure 41 can be used to divide the air inlet channel 7 into a first air inlet cavity 71 and a second air inlet cavity 72 arranged in the extension direction of the atomizer channel 8. The first air inlet cavity 71 and the second air inlet cavity 72 are both annular cavities. The connecting hole 412 can be arranged on the annular plate 411 of the hook structure 41. In this way, the first air inlet cavity 71 and the second air inlet cavity 72 are connected through the connecting hole 412.

[0041] The hook structure 41 also includes a hook portion 413 connected to the radial outer end of the annular plate 411. A slot 23 can be set on the cavity wall of the installation cavity 3, that is, on the inner cylinder wall of the suction nozzle 2 or the side wall of the installation recess of the skeleton part 1. The slot 23 cooperates with the hook portion 413 of the hook structure 41 to fix the atomizer tube 4 in the installation cavity 3.

[0042] Further, in one embodiment, in order to prevent the atomizing tube 4 from shaking in the installation cavity 3, please continue to refer to Figure 2 It is also possible to arrange that one end of the atomizing tube 4 in its extending direction is inserted into the suction nozzle 2, and the other end is spaced apart from the skeleton part 1.

[0043] The nozzle end 21 of the nozzle piece 2 has an annular structure 211 protruding from the insertion port 212 of the nozzle piece 2 toward the inside of its cylindrical structure. The tube wall of the atomizing tube 4 is located on the inner side of the annular structure 211 in the radial direction of the atomizing channel 8. One end of the atomizing tube 4 is plugged and matched with the annular structure 211 to ensure that the atomizing tube 4 and the nozzle piece 2 are coaxially arranged, so that the aerosol generating device can be smoothly inserted into the atomizing tube 4 from the insertion port 212 of the nozzle end 21 of the nozzle piece 2. The other end of the atomizing tube 4 is arranged at intervals with the skeleton part 1 so that the atomizing tube 4 as a whole is suspended in the installation cavity 3 through the hook structure 41. On the one hand, the air inlet channel 7 can be connected with the atomizing channel 8 by opening the end of the atomizing tube 4. On the other hand, the atomizing tube 4 can be prevented from contacting with the skeleton part 1, which helps to reduce the transfer of heat to the skeleton part 1, thereby improving the heat utilization rate of the aerosol generating device.

[0044] In another embodiment, the hook structure 41 is not provided on the atomizer tube 4, and the two ends of the atomizer tube 4 are respectively inserted and matched with the suction nozzle piece 2 and the skeleton part 1 to locate the radial position of the atomizer tube 4 in the atomization channel 8. In addition, the atomizer tube 4 can be clamped by the suction nozzle piece 2 and the skeleton part 1 to achieve the fixation of the position of the atomizer tube 4 in the extension direction of the atomization channel 8. In this way, it is necessary to provide an annular sealing plate extending toward the atomizer tube 4 on the cavity wall of the installation cavity 3, so as to achieve the isolation of the first air inlet cavity 71 and the second air inlet cavity 72 through the annular sealing plate, and a connecting hole 412 is provided on the annular sealing plate. The connecting hole 412 can be a circular hole, or the connecting hole 412 can also be an annular hole formed by the annular sealing plate and the tube wall of the atomizer tube 4. The air intake of the atomization channel 8 is ensured by controlling the size of the connecting hole 412; in addition, it is necessary to provide a notch or an opening on the tube wall of the atomizer tube 4 to ensure the communication between the air inlet channel 7 and the atomization channel 8.

[0045] In addition to the above-mentioned manner of installing the atomizing tube 4 in the installation cavity 3, in other embodiments, a sealing tube can be further arranged outside the atomizing tube 4, and an upper clamping member and a lower clamping member are respectively arranged at the axial ends of the atomizing tube 4, and the sealing tube and the atomizing tube 4 are clamped and fixed by the upper and lower clamping members, the atomizing channel 8 is located in the atomizing tube 4, and the air inlet channel 7 is located between the sealing tube and the atomizing tube 4. An annular plate can be arranged on the inner wall of the sealing tube, and a connecting hole can be arranged on the annular plate, or the connecting hole can be formed by enclosing the annular plate and the tube wall of the atomizing tube 4, and an opening or a notch can be arranged on the tube wall of the atomizing tube 4 to ensure that the air inlet channel 7 is connected to the atomizing channel 8.

[0046] Please continue to refer to Figure 2The first air inlet cavity 71 in the air inlet channel 7 is located between the second air inlet cavity 72 and the nozzle end 21 of the nozzle piece 2 in the extension direction of the atomization channel 8, and the first air inlet port 42 and the second air inlet port 25 are both connected to the first air inlet cavity 71 to ensure that the airflow passing through the first air inlet port 42 and the second air inlet port 25 needs to enter the atomization channel 8 through the connecting hole 412. The size of the connecting hole 412 can be controlled to ensure the air intake of the atomization channel 8, thereby improving the consistency of the air intake of the batch aerosol generating device.

[0047] In one embodiment, the air inlet channel 7 has a first end and a second end in the extension direction of the atomization channel 8, and the first end corresponds to the insertion port 212 of the mouthpiece 2 in the extension direction of the atomization channel 8. When the aerosol generating device is in use, the first end is located on the upper side of the second end, and the air inlet channel 7 is connected to the end opening of the atomization tube 4 at the second end, that is, it is connected to the atomization channel 8. The first air inlet 42 is arranged at the first end, so that the first air inlet 42 forms a top air intake mode, which can extend the flow path of the airflow entering the atomization channel 8 from the first air inlet 42. In this way, the preheating time of the airflow in the air inlet channel 7 can be extended through the tube wall of the atomization tube 4, thereby improving the heat utilization rate.

[0048] The first air inlet 42 may be disposed on the end surface of the mouthpiece 2 in the extending direction of the atomization channel 8 , with the first air inlet 42 facing upward, so that the airflow passing through the first air inlet 42 can enter the first air inlet cavity 71 without being bent.

[0049] For some embodiments, please continue to refer to Figure 2 The first air inlet 42 and the second air inlet 25 may be respectively arranged on both sides of the air inlet channel 7 in the radial direction of the atomization channel 8 .

[0050] The first air inlet 42 can be arranged on the radial inner side of the air inlet channel 7, and the first air inlet 42 can be arranged on the channel wall of the atomization channel 8, so that the first air inlet 42 faces the inside of the atomization channel 8 in the radial direction of the atomization channel 8, which can avoid the first air inlet 42 being directly exposed to the outer surface of the aerosol generating device, and help to reduce the probability of the first air inlet 42 being blocked or blocked; and the first air inlet 42 faces the inside of the atomization channel 8. In order to ensure that the airflow can enter the first air inlet 42 from the gap between the channel wall of the atomization channel 8 and the outer peripheral surface of the aerosol generating matrix 9, it is necessary to increase the radial dimension of the atomization channel 8, so as to facilitate the insertion of the aerosol generating matrix 9 into the atomization channel 8.

[0051] As in one example, a notch can be set on the tube wall at the end of the atomizer tube 4, so that after the atomizer tube 4 and the suction nozzle part 2 are inserted into each other, the notch is combined with the suction nozzle part 2 to form a first air inlet 42 that is connected to the first air inlet cavity 71. In order to meet the requirements of the atomizer tube 4 and the suction nozzle part 2 being inserted into each other and realizing the connection between the first air inlet 42 and the first air inlet cavity 71, a connecting groove 43 can be set on the outer tube wall of the atomizer tube 4, and the connecting groove 43 and the annular structure 211 of the suction nozzle part 2 are combined to form a connecting airway, or a connecting groove can be set on the inner circumferential surface of the annular structure 211, so that the connecting groove and the atomizer tube 4 are combined to form a connecting airway, and the first air inlet 42 is connected to the first air inlet cavity 71 through the connecting airway; of course, in other embodiments, an opening corresponding to the first air inlet 42 can also be set on the annular structure 211, so that the first air inlet 42 and the first air inlet cavity 71 can be connected through the opening.

[0052] In another example, an opening may be provided on the atomizing tube 4 to form a first air inlet 42 communicating with the first air inlet cavity 71 ; or the first air inlet 42 may be provided on the annular structure 211 to facilitate processing of the first air inlet 42 .

[0053] The second air inlet 25 can be arranged on the wall of the cylindrical structure of the nozzle 2, and the second air inlet 25 faces away from the atomizing channel 8, that is, the second air inlet 25 faces outside the atomizing channel 8 in the radial direction of the atomizing channel 8. Figure 2 After the mouthpiece 2 is connected to the skeleton part 1, the mouthpiece 2 has an outer protrusion 26 protruding from the skeleton part 1 in the extension direction of the atomization channel 8. The second air inlet 25 can be set on the outer protrusion 26, and the second air inlet 25 is set close to the skeleton part 1 in the extension direction of the atomization channel 8, so that the second air inlet 25 is located in the recessed part of the entire aerosol generating device, which can prevent the user's hand from completely blocking the second air inlet 25, and help ensure the air intake of the atomization channel 8.

[0054] Of course, in other embodiments, in the structure in which the mouthpiece 2 is mounted on the skeleton part 1, the wall of the cylindrical structure on the mouthpiece 2 is completely exposed outside the aerosol generating device, and the second air inlet 25 can also be set at any position on the wall of the cylindrical structure on the mouthpiece 2, as long as all air inlets are ensured not to be completely blocked.

[0055] In one embodiment, please continue to refer to Figure 2 The skeleton part 1 includes a shell 11 and a bracket 12. The shell 11 has a cavity inside. The shell 11 has a recess at the installation cavity 3. The shell 11 has an opening at the bottom of the recess that is connected to the internal cavity. The bracket 12 is located in the cavity of the shell 11. The bracket 12 is sealed with the opening on the shell 11. The shell 11 and the bracket 12 enclose a mounting recess on the skeleton part 1. The shell 11, the bracket 12 and the suction nozzle 2 enclose a mounting cavity 3.

[0056] The aerosol generating device also includes a circuit board 5, which is located in the cavity of the shell 11. The shell 11 includes a first shell and a second shell connected to the first shell by snaps or screws. The first shell and the second shell are arranged in the extension direction of the atomization channel 8, so as to facilitate the installation of the circuit board 5 in the cavity. The circuit board 5 is arranged on the side of the bracket 12 facing away from the atomization tube 4 in the extension direction of the atomization channel 8. The circuit board 5 and the bracket 12 are pressed between the first shell and the second shell to realize the installation and fixation of the circuit board 5 and the bracket 12 in the shell 11.

[0057] In one embodiment, please continue to refer to Figure 2 The aerosol generating device further comprises a heating element 6, which is mounted on the bracket 12. The heating element 6 comprises a needle-type heating body. The heating element 6 is arranged in the extension direction of the atomizing channel 8. The heating element 6 has an insertion section extending from the end opening of the atomizing tube 4 into the atomizing tube 4. The insertion section is used to penetrate into the aerosol generating matrix 9 to achieve heating of the aerosol generating matrix 9.

[0058] In other embodiments, the heating element 6 can also be fixed on the tube wall of the atomization tube 4. The heating element 6 can include a heating film, or the heating element 6 includes a heating body with magnetism. The heating element 6 is configured with a coil for generating an alternating magnetic field. The heating element 6 transfers heat to the atomization tube 4, and heats the aerosol generating matrix 9 in the atomization channel 8 through the atomization tube 4.

[0059] The above specific examples are used to illustrate the present invention, which are only used to help understand the present invention and are not intended to limit the present invention. For those skilled in the art of the present invention, some simple deductions, deformations or substitutions can be made based on the idea of ​​the present invention.

Claims

1. An aerosol generating device, characterized in that: The invention has an air inlet channel and an atomization channel, wherein the atomization channel is used to accommodate an aerosol-generating substrate, the air inlet channel includes a first air inlet cavity and a second air inlet cavity, the second air inlet cavity is connected to the atomization channel, and a connecting hole is provided in the air inlet channel, and the first air inlet cavity is connected to the second air inlet cavity through the connecting hole; The aerosol generating device also has a first air inlet and a second air inlet connected to the first air inlet cavity; the first air inlet and the second air inlet are staggered in the extension direction of the atomization channel, and / or the angle between the direction of the first air inlet and the direction of the second air inlet is not zero.

2. The aerosol generating device according to claim 1, characterized in that The aerosol generating device comprises a device body and an atomizing tube installed in the device body, the atomizing channel is located in the atomizing tube, the air inlet channel is arranged around the atomizing channel, and the air inlet channel is located between the device body and the tube wall of the atomizing tube; the first air inlet cavity and the second air inlet cavity are arranged in the extension direction of the atomizing channel.

3. The aerosol generating device according to claim 2, characterized in that In the radial direction of the atomizing channel, the first air inlet is located on the inner side of the air inlet channel, and the second air inlet is located on the outer side of the air inlet channel.

4. The aerosol generating device according to claim 2, characterized in that The air inlet channel has a first end and a second end in the extending direction of the atomizing channel. The air inlet channel is connected with the atomizing channel at the second end, and the first air inlet is located at the first end.

5. The aerosol generating device according to any one of claims 2 to 4, characterized in that: The device body comprises a frame part and a suction nozzle part connected to the frame part. The frame part and the suction nozzle part are enclosed to form a mounting cavity. The atomizing tube is located in the mounting cavity.

6. The aerosol generating device according to claim 5, characterized in that The suction nozzle has an outer protrusion protruding from the frame part, the second air inlet is located on the outer protrusion, the second air inlet is arranged close to the frame part, and the second air inlet faces away from the atomization channel.

7. The aerosol generating device according to claim 5, characterized in that One end of the atomizing tube in the extending direction is inserted into the mouthpiece, and the other end is spaced apart from the frame part; The first air inlet is located on the tube wall of the atomizing tube, and the atomizing tube and the nozzle piece are enclosed to form a connecting airway arranged in the extending direction of the atomizing channel, and the connecting airway connects the first air inlet and the first air inlet cavity.

8. The aerosol generating device according to claim 5, characterized in that A hook structure is arranged on the outer tube wall of the atomizer tube, the atomizer tube is installed in the installation cavity through the hook structure, and the communicating hole is arranged on the hook structure.

9. The aerosol generating device according to claim 5, characterized in that The skeleton part has a mounting recess, the suction nozzle part has a protruding part matching with the mounting recess, a first protrusion is arranged on the side wall of the protruding part, a second protrusion is arranged on the side wall of the mounting recess, the protruding part is inserted into the mounting recess, and the first protrusion and the second protrusion are abutted against each other in the insertion direction of the suction nozzle part and the skeleton part.

10. The aerosol generating device according to claim 5, characterized in that The skeleton part comprises a shell and a bracket, the shell has an opening, the bracket is located in the shell, the bracket is sealed with the opening, and the shell, the bracket and the nozzle piece are enclosed to form the installation cavity; The aerosol generating device further comprises a heating element, wherein the heating element is mounted on the bracket and has an insertion section extending into the atomizing tube, wherein the insertion section is used for being inserted into the aerosol generating matrix.

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