Atomizers and aerosol generating equipment

Abstract

The present application relates to an atomizing device and an aerosol generating apparatus. The atomizing device includes a main unit and a suction assembly. The main unit is provided with an atomizing channel for heating an aerosol-generating matrix. The suction assembly cover is provided at one end of the main unit. The suction assembly is provided with a suction port, a mixing chamber, and mutually independent first and second air channels. One end of the first air channel is connected to the atomizing channel, and one end of the second air channel is connected to the outside atmosphere. The other ends of the first and second air channels are both connected to the suction port through the mixing chamber. The atomizing channel can heat the aerosol-generating matrix to generate a higher-temperature aerosol. When a user draws air from the suction port, the higher-temperature aerosol in the atomizing channel enters the mixing chamber through the first air channel, and the lower-temperature outside air enters the mixing chamber through the second air channel and mixes with the aerosol, thereby cooling the aerosol and making the aerosol flowing out of the suction port at an appropriate temperature, which is beneficial for improving the user's puffing experience and preventing burns.

Description

Technical Field

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

[0002] Cigarette smoke contains harmful substances such as tar, which can be very harmful to the human body if inhaled for a long time. To overcome the harmful substances produced by cigarette combustion, low-harm cigarette alternatives such as e-cigarettes with e-liquids and heat-not-burn e-cigarettes have emerged.

[0003] The aerosol generated by traditional e-cigarettes is generally hot, and users can easily get burned if they inhale directly. Therefore, how to more effectively reduce the aerosol temperature has always been a problem that traditional e-cigarettes need to solve. Summary of the Invention

[0004] Based on this, it is necessary to provide an atomizing device and an aerosol generating device to address the above problems.

[0005] An atomizing device, comprising:

[0006] A main unit, the main unit being provided with an atomization channel for heating an aerosol-generating substrate;

[0007] A suction component is covered on one end of the main unit, and the suction component is provided with a suction port, a mixing chamber, and a first air channel and a second air channel that are independent of each other. One end of the first air channel is connected to the atomization channel, one end of the second air channel is connected to the outside atmosphere, and the other end of the first air channel and the other end of the second air channel are both connected to the suction port through the mixing chamber.

[0008] The atomizing device described above has an atomizing channel that heats the aerosol-generating substrate to produce a higher-temperature aerosol. When a user draws in air from the inhalation port, the higher-temperature aerosol in the atomizing channel enters the mixing chamber via the first air channel. Cooler ambient air enters the mixing chamber via the second air channel and mixes with the higher-temperature aerosol, thereby cooling the aerosol and maintaining a suitable temperature for the aerosol exiting the inhalation port. This improves the user's puffing experience and prevents burns.

[0009] In one embodiment, the suction assembly includes an end cover and a suction nozzle with the suction port, the end cover is arranged on one end of the main unit, the end cover is provided with the first air duct, the suction nozzle is inserted into the side of the end cover facing away from the main unit, the interior of the suction nozzle is hollow and the mixing chamber is formed at the end close to the suction port, and the suction nozzle and the end cover are enclosed to form the second air duct.

[0010] In one embodiment, the end cover includes a cover body and a hollow tube portion, the cover body is provided on one end of the main unit, the hollow tube portion is provided on the side of the cover body facing away from the main unit, the inner tube wall of the hollow tube portion encloses the first air channel, the nozzle is sleeved on the outer tube wall of the hollow tube portion, and the outer tube wall of the hollow tube portion and the inner circumference of the nozzle enclose the second air channel. It can be understood that when the aerosol with a higher temperature flows through the first air channel of the hollow tube portion, the heat of the aerosol will diffuse to the inner tube wall of the hollow tube portion, and then the heat can also diffuse to the outer tube wall of the hollow tube portion. Since the outer tube wall of the hollow tube portion is part of the second air channel, the air flowing into the second air channel from the outside can absorb the heat of the outer tube wall of the hollow tube portion, thereby reducing the temperature of the aerosol inside the hollow tube portion, that is, inside the first air channel. In other words, the lower temperature air in the second air duct can also reduce the temperature of the hollow tube portion in advance before entering the mixing chamber, thereby indirectly reducing the temperature of the aerosol in the first air duct, thereby achieving a better cooling effect on the aerosol.

[0011] In one embodiment, the outer wall of the hollow tube is provided with an air inlet groove extending axially along the hollow tube. The inner circumference of the nozzle and the wall of the air inlet groove enclose the second air channel. This structural arrangement not only extends the length of the second air channel, but also provides a larger contact area between the air in the second air channel and the wall of the air inlet groove, thereby allowing the cooler air flowing through the second air channel to absorb heat more efficiently.

[0012] In one embodiment, the suction assembly further includes an air inlet connected to the first air channel. The air inlet is located on the side of the suction nozzle near the end cap, and is formed by the suction nozzle and the end cap, or is formed in the suction nozzle. This structural arrangement can be considered as positioning the air inlet as far away from the suction port as possible, thereby extending the length of the second air channel and ensuring that the air in the second air channel has a longer contact time with the outer wall of the hollow tube, thereby further improving the cooling effect.

[0013] In one embodiment, the nozzle includes a heat-conducting tube and a suction tube radially extending from the inside outward along the hollow tube portion. The inner wall of the heat-conducting tube and the outer wall of the hollow tube portion enclose a second airway. The heat-conducting tube can quickly absorb some heat, further improving the cooling efficiency of the aerosol.

[0014] In one embodiment, the heat pipe is a metal pipe.

[0015] In one embodiment, a plurality of second air channels are provided, each of which is spaced apart along the circumference of the hollow tube. Providing multiple second air channels can improve air intake efficiency and prevent the extreme situation of blockage of a second air channel, which could prevent the input of outside air. In other words, even if one of the plurality of second air channels is blocked, the remaining second air channels can still communicate normally with the mixing chamber, thereby ensuring that outside air can be input into the mixing chamber to mix with the higher-temperature aerosol, thereby maintaining the cooling effect of the aerosol.

[0016] In one embodiment, the cross-sectional area of the second airway is smaller than that of the first airway. It is understood that the smaller the cross-sectional area, the greater the inhalation resistance. When a user draws, the air flow in the second airway per unit time is less than the amount of aerosol in the first airway. While ensuring effective cooling of the aerosol, this configuration ensures that the aerosol concentration drawn from the inhalation port does not decrease excessively, thereby ensuring a good puff quality.

[0017] In one embodiment, the atomizing device further includes a porous mesh structure disposed within the first airway, the porous mesh structure being configured to disperse the aerosol flowing therethrough to reduce the temperature of the aerosol. When a higher temperature aerosol flows through the porous mesh structure within the first airway, the aerosol is dispersed into a plurality of small holes. This can be considered as the aerosol being divided into multiple strands by the porous mesh structure and entering the plurality of small holes. The heat of the higher temperature aerosol can then be conducted away from the walls of the plurality of small holes. In other words, the porous mesh structure can better absorb the heat of the aerosol and conduct the heat away from the walls of the hollow tube portion, thereby further improving the cooling efficiency of the aerosol.

[0018] In one embodiment, the end cap is detachably connected to the main unit. Such a structural arrangement allows the user to flexibly replace the suction component according to actual conditions.

[0019] In one embodiment, the end cover is provided with a plurality of first clamping portions at intervals on the circumferential edge, and the host is provided with a plurality of second clamping portions corresponding one-to-one to the first clamping portions. The end cover is fixed to the host by clamping the first clamping portions and the second clamping portions.

[0020] In one embodiment, the end cap is further provided with a positioning post on the side closest to the main unit. The main unit is provided with a positioning slot, and the end cap extends into the positioning slot via the positioning post to engage with the main unit. This structural arrangement can position the end cap and the main unit, preventing misalignment between the first and second clamping portions, thereby improving the reliability of the connection between the end cap and the main unit.

[0021] In one embodiment, the atomization device further includes a heating component disposed in the main unit, the heating component enclosing the atomization channel, and the heating component is used to heat the aerosol-generating matrix in the atomization channel.

[0022] The present application also provides an aerosol generating device, which includes a power supply device and the atomization device described in any one of the above embodiments, and the power supply device is electrically connected to the atomization device.

[0023] The aerosol generating device described above has an atomizing channel that heats the aerosol-generating substrate to produce a higher-temperature aerosol. When a user draws in air from the inhalation port, the higher-temperature aerosol in the atomizing channel enters the mixing chamber via the first air channel. Cooler ambient air enters the mixing chamber via the second air channel and mixes with the higher-temperature aerosol, thereby cooling the aerosol and maintaining a suitable temperature for the aerosol exiting the inhalation port. This improves the user's puffing experience and prevents burns. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the conventional technology, the following briefly introduces the drawings required for use in the embodiments or the conventional technology descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 A cross-sectional view of an aerosol generating device according to an embodiment of the present invention;

[0026] Figure 2 A three-dimensional structural diagram of an aerosol generating device provided in one embodiment of the present invention;

[0027] Figure 3 A partial exploded diagram of a suction assembly and a main unit provided in one embodiment of the present invention;

[0028] Figure 4 A partial perspective cross-sectional view of a suction assembly provided in accordance with one embodiment of the present invention;

[0029] Figure 5 A sectional perspective view from above of a suction assembly according to one embodiment of the present invention;

[0030] Figure 6 An exploded schematic diagram of a suction assembly provided in accordance with one embodiment of the present invention.

[0031] Reference numerals:

[0032] 10. Atomizing device; 100. Main unit; 101. Atomizing channel; 110. Heating assembly; 102. Second clamping portion; 103. Positioning groove; 200. Suction assembly; 201. First air channel; 202. Second air channel; 203. Mixing chamber; 204. Suction port; 205. Air inlet hole; 210. End cap; 211. Cover body; 212. Hollow tube; 213. Air inlet groove; 214. Porous mesh structure; 215. Small hole; 216. First clamping portion; 217. Positioning column; 220. Suction nozzle; 221. Heat pipe; 222. Suction tube; 20. Power supply device; 30. Aerosol generating matrix. DETAILED DESCRIPTION

[0033] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0034] See also Figure 1 、 Figure 2 、 Figure 3 and Figure 4 The present application provides an atomizing device 10, which includes a main unit 100 and a suction component 200. The main unit 100 is provided with an atomizing channel 101 for heating an aerosol-generating matrix 30. The suction component 200 is covered at one end of the main unit 100. Figure 4 As shown, the suction assembly 200 is provided with a suction port 204, a mixing chamber 203, and a first air channel 201 and a second air channel 202 that are independent of each other. One end of the first air channel 201 is connected to the atomization channel 101, and one end of the second air channel 202 is connected to the outside atmosphere. The other end of the first air channel 201 and the other end of the second air channel 202 are both connected to the suction port 204 through the mixing chamber 203. Among them, the aerosol generating matrix 30 can refer to a material that can provide volatile components by heating. For example, the aerosol generating matrix 30 can refer to any material containing tobacco. More specifically, the aerosol generating matrix 30 can refer to one or more of tobacco, tobacco derivatives, expanded tobacco, reconstituted tobacco, or tobacco substitutes.

[0035] The atomization channel 101 heats the aerosol-generating matrix 30 to generate a higher-temperature aerosol. When a user inhales from the inhalation port 204, the higher-temperature aerosol in the atomization channel 101 enters the mixing chamber 203 via the first air channel 201. Cooler ambient air enters the mixing chamber 203 via the second air channel 202 and mixes with the higher-temperature aerosol, thereby cooling the aerosol and maintaining a suitable temperature for the aerosol flowing out of the inhalation port 204. This improves the user's inhalation sensation and prevents burns.

[0036] Specifically, if Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown, in some embodiments, the suction assembly 200 includes an end cap 210 and a suction nozzle 220 with a suction port 204. The end cap 210 is mounted on one end of the main unit 100, and a first air passage 201 is provided through the middle of the end cap 210. The suction nozzle 220 is inserted into the side of the end cap 210 facing away from the main unit 100. The suction nozzle 220 is hollow and forms a mixing chamber 203 at one end near the suction port 204. The suction nozzle 220 and the end cap 210 enclose a second air passage 202.

[0037] More specifically, in Figure 3 、 Figure 4 and Figure 5 In the illustrated embodiment, the end cap 210 includes an integrally formed cover body 211 and a hollow tube portion 212. The cover body 211 is mounted on one end of the main unit 100, and the hollow tube portion 212 is located on the side of the cover body 211 facing away from the main unit 100. The inner wall of the hollow tube portion 212 encloses a first airway 201. The nozzle 220 is mounted on the outer wall of the hollow tube portion 212. The outer wall of the hollow tube portion 212 and the inner circumference of the nozzle 220 enclose a second airway 202. It is understood that when a higher temperature aerosol flows through the first airway 201 of the hollow tube portion 212, the heat of the aerosol will diffuse to the inner wall of the hollow tube portion 212, and then the heat can also diffuse to the outer wall of the hollow tube portion 212. Because the outer wall of the hollow tube portion 212 forms part of the second airway 202, air flowing into the second airway 202 from the outside can absorb heat from the outer wall of the hollow tube portion 212, thereby reducing the temperature of the aerosol within the hollow tube portion 212, i.e., within the first airway 201. In other words, the lower-temperature air from the second airway 202 can also lower the temperature of the hollow tube portion 212 before entering the mixing chamber 203, thereby indirectly reducing the temperature of the aerosol within the first airway 201, thereby achieving a better cooling effect on the aerosol.

[0038] Further, if Figure 3 、 Figure 4As shown, in some embodiments, an air inlet groove 213 extending axially along the outer wall of the hollow tube portion 212 is formed. The inner circumferential surface of the suction nozzle 220 and the wall of the air inlet groove 213 enclose the second air channel 202. This structural arrangement not only extends the length of the second air channel 202, but also provides a larger contact area between the air in the second air channel 202 and the wall of the air inlet groove 213, thereby allowing the cooler air flowing through the second air channel 202 to absorb heat more efficiently.

[0039] Furthermore, if Figure 3 、 Figure 4 As shown, in some embodiments, the suction assembly 200 is further provided with an air inlet hole 205 connected to the air inlet guide groove, that is, the air inlet hole 205 is connected to the first air channel 201. The air inlet hole 205 is located on the side of the suction nozzle 220 close to the end cover 210, and the air inlet hole 205 is formed by the suction nozzle 220 and the end cover 210. In other embodiments, the air inlet hole 205 can also be directly opened on the circumference of the suction nozzle 220. Such a structural setting can be considered as the air inlet hole 205 being set as far away from the suction port 204 as possible, thereby extending the length of the second air channel 202, so that the air in the second air channel 202 has a longer contact time with the outer tube wall of the hollow tube portion 212, so as to further enhance the cooling effect.

[0040] like Figure 4 、 Figure 5 and Figure 6 As shown, in some embodiments, the nozzle 220 includes a heat conducting tube 221 and a suction tube 222, which are arranged radially from the inside outward along the hollow tube portion 212. The inner wall of the heat conducting tube 221 and the outer wall of the hollow tube portion 212 enclose the second air channel 202. The heat conducting tube 221 can quickly absorb some heat, further improving the cooling efficiency of the aerosol. The heat conducting tube 221 can be a metal tube with a high thermal conductivity.

[0041] like Figure 4 and Figure 5 As shown, in some embodiments, a plurality of second air channels 202 are provided, and the plurality of second air channels 202 are spaced apart along the circumference of the hollow tube portion 212. Providing a plurality of second air channels 202 can, on the one hand, improve the air intake efficiency, and on the other hand, prevent the extreme situation where a particular second air channel 202 becomes blocked, thereby preventing the input of outside air. In other words, even if one of the plurality of second air channels 202 is blocked, the remaining second air channels 202 can still be normally connected to the mixing chamber 203, thereby ensuring that outside air can be input into the mixing chamber 203 to mix with the higher temperature aerosol, thereby ensuring the cooling effect of the aerosol.

[0042] like Figure 4 and Figure 5As shown, in some embodiments, the cross-sectional area of the second airway 202 is smaller than the cross-sectional area of the first airway 201. It is understandable that the smaller the cross-sectional area, the greater the inhalation resistance. When the user draws in, the air flow in the second airway 202 is smaller than the aerosol flow in the first airway 201 per unit time. Under the premise of ensuring effective cooling of the aerosol, this configuration can prevent the aerosol concentration inhaled by the user through the inhalation port 204 from being excessively reduced, thereby ensuring a safe inhalation sensation at the inhalation port 204.

[0043] like Figure 4 and Figure 5 As shown, in some embodiments, the atomizing device 10 further includes a porous mesh structure disposed within the first air passage 201. The porous mesh structure is configured to disperse the aerosol flowing therethrough to reduce the temperature of the aerosol. When a higher temperature aerosol flows through the porous mesh structure within the first air passage 201, the aerosol is dispersed into the plurality of small holes 215. This can be considered as the aerosol being divided into multiple strands by the porous mesh structure and entering the plurality of small holes 215. The heat of the higher temperature aerosol can then be conducted away from the walls of the plurality of small holes 215. In other words, the porous mesh structure 214 can better absorb the heat of the aerosol and conduct the heat away from the walls of the hollow tube portion 212, thereby further improving the cooling efficiency of the aerosol.

[0044] See also Figure 3 In some embodiments, the end cap 210 is detachably connected to the main unit 100. Such a structural arrangement allows the user to flexibly replace the suction assembly 200 according to actual conditions.

[0045] Specifically, if Figure 3 and Figure 6 As shown, the end cap 210 is provided with a plurality of first engaging portions 216 spaced apart along its circumferential edge. The host 100 is provided with a plurality of second engaging portions 102 corresponding one-to-one with the first engaging portions 216. The end cap 210 is secured to the host 100 by engaging the first engaging portions 216 with the second engaging portions 102. In some embodiments, the first engaging portions 216 may be engaging protrusions, and the second engaging portions 102 may be engaging grooves. In other embodiments, the first engaging portions 216 may be engaging grooves, and the second engaging portions 102 may be engaging protrusions.

[0046] More specifically, if Figure 3 and Figure 6As shown, in some embodiments, a positioning post 217 is further provided on the side of the end cap 210 close to the main unit 100. The main unit 100 is provided with a positioning slot 103. The end cap 210 extends into the positioning slot 103 via the positioning post 217 to engage with the main unit 100. This structural arrangement can position the end cap 210 and the main unit 100, prevent the first clamping portion 216 and the second clamping portion 102 from being misaligned, and thus improve the reliability of the connection between the end cap 210 and the main unit 100.

[0047] See also Figure 1 and Figure 2 The present application also relates to an aerosol generating device, which includes an atomizing device 10 and a power supply device 20. The atomizing device 10 includes a main unit 100, an atomizing component and a heating component 110. The heating component 110 is arranged in the main unit 100 and encloses an atomizing channel 101. The power supply device 20 is detachably connected to one end of the atomizing device 10, and the power supply device 20 can be used to provide electrical energy to the atomizing device 10. The heating component 110 can heat the aerosol generating matrix 30 in the atomizing channel 101, thereby generating an aerosol with a higher temperature. In the above-mentioned aerosol generating device, the atomizing channel 101 of the atomizing device 10 can heat the aerosol generating matrix 30 to generate an aerosol with a higher temperature. When the user takes a puff from the suction port 204, the aerosol with a higher temperature in the atomization channel 101 enters the mixing chamber 203 through the first air channel 201, and the outside air with a lower temperature enters the mixing chamber 203 from the second air channel 202 and mixes with the aerosol with a higher temperature, thereby achieving a cooling treatment of the aerosol and making the temperature of the aerosol flowing out of the suction port 204 appropriate, which is beneficial to improving the user's suction port 204 feeling and preventing burns.

[0048] like Figure 1 As shown, in some embodiments, the atomizing device 10 further includes a heating component 110 disposed within the main unit 100. The heating component 110 encloses and forms an atomizing channel 101. The heating component 110 is used to heat the aerosol-generating substrate 30 within the atomizing channel 101. The heating component 110 may refer to a heating chamber within a heat-not-burn electronic cigarette for heating an aerosol-generating substrate 30 such as a cigarette, or may refer to an atomizing core for heating an atomizing medium such as tobacco oil.

[0049] In the description of the present invention, it should be understood that the terms "length", "width", "thickness", "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0050] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0051] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0052] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0053] It should be noted that when an element is referred to as being "provided on," "fixed on," or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0054] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0055] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

[0056] In the description of this specification, the description with reference to the terms "one embodiment", "other implementation methods", etc. means that the specific features, structures, materials or features described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. 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 belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

Claims

1. An atomizing device, characterized in that: include: A main unit, the main unit being provided with an atomization channel for heating an aerosol-generating substrate; A suction component is covered on one end of the main unit, the suction component is provided with a suction port, a mixing chamber and a first air channel and a second air channel that are independent of each other, the suction component includes an end cover and a suction nozzle with the suction port, the end cover is covered on one end of the main unit, the end cover is provided with the first air channel, the suction nozzle is inserted on the side of the end cover facing away from the main unit, the interior of the suction nozzle is hollow and the mixing chamber is formed at one end close to the suction port, the suction nozzle and the end cover are enclosed to form the second air channel, one end of the first air channel is connected to the atomization channel, one end of the second air channel is connected to the outside atmosphere, and the other end of the first air channel and the other end of the second air channel are both connected to the suction port through the mixing chamber; Among them, the end cover includes a cover body and a hollow tube portion, the cover body is arranged on one end of the main unit, the hollow tube portion is arranged on the side of the cover body facing away from the main unit, the inner tube wall of the hollow tube portion is enclosed to form the first air channel, and the suction nozzle is arranged on the outer tube wall of the hollow tube portion, and the outer tube wall of the hollow tube portion and the inner circumference of the suction nozzle are enclosed to form the second air channel.

2. The atomizing device according to claim 1, characterized in that An air inlet groove extending along the axial direction of the hollow tube portion is formed on the outer tube wall of the hollow tube portion, and the inner peripheral surface of the suction nozzle and the groove wall of the air inlet groove are enclosed to form the second air channel.

3. The atomizing device according to claim 1, characterized in that The suction assembly is further provided with an air inlet hole connected to the first air duct, the air inlet hole is located on a side of the suction nozzle close to the end cover, the air inlet hole is formed by the suction nozzle and the end cover or the air inlet hole is opened in the suction nozzle.

4. The atomizing device according to any one of claims 1 to 3, characterized in that The suction nozzle includes a heat conduction pipe and a suction pipe which are sequentially sleeved from inside to outside along the radial direction of the hollow tube portion. The inner tube wall of the heat conduction pipe and the outer tube wall of the hollow tube portion are enclosed to form the second air channel.

5. The atomizing device according to claim 4, characterized in that The heat conduction pipe is a metal pipe.

6. The atomizing device according to any one of claims 1 to 3, characterized in that A plurality of the second air passages are provided, and the plurality of the second air passages are spaced apart along the circumference of the hollow tube portion.

7. The atomizing device according to any one of claims 1 to 3, characterized in that A cross-sectional area of the second air passage is smaller than a cross-sectional area of the first air passage.

8. The atomizing device according to any one of claims 1 to 3, characterized in that The atomizing device further includes a porous mesh structure disposed in the first air passage, and the porous mesh structure is used to disperse the aerosol flowing through the first air passage to reduce the temperature of the aerosol.

9. The atomizing device according to any one of claims 1 to 3, characterized in that The end cover is detachably connected to the host.

10. The atomizing device according to claim 9, characterized in that: The end cover is provided with a plurality of first clamping parts at intervals on the circumferential edge, and the host is provided with a plurality of second clamping parts corresponding to the first clamping parts one by one. The end cover is fixed to the host by clamping the first clamping parts with the second clamping parts.

11. The atomizing device according to claim 10, characterized in that A positioning column is further provided on one side of the end cover close to the main unit, and a positioning groove is provided on the main unit. The end cover extends into the positioning groove through the positioning column to cooperate with the main unit in a limited manner.

12. The atomizing device according to any one of claims 1 to 3, characterized in that The atomizing device further comprises a heating component disposed in the main unit, the heating component enclosing the atomizing channel, and the heating component being used to heat the aerosol-generating matrix in the atomizing channel.

13. An aerosol generating device, characterized in that It comprises a power supply device and the atomization device according to any one of claims 1 to 12, wherein the power supply device is electrically connected to the atomization device.

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