Atomization device and aerosol generating equipment

Abstract

The invention relates to an atomization device and aerosol generating equipment. The atomization device comprises an atomization assembly, a suction assembly and a storage assembly. The atomizing assembly is used for atomizing the aerosol generating substrate to form aerosol; the suction assembly comprises a pipeline and a pump body connected with the pipeline, and one end of the pipeline is communicated with the atomization assembly so as to supply the aerosol generating matrix to the atomization assembly; the material storage assembly comprises a ventilation structure and a shell, the interior of the shell is hollow, a mounting opening is formed in the shell, the ventilation structure is embedded in the mounting opening in a sealed mode, and a material storage cavity used for being filled with the aerosol generating matrix is defined by the ventilation structure and the inner surface of the shell. And any one of the shell and the ventilation structure is provided with a discharge port communicated with the storage cavity, and the discharge port is communicated with the other end of the pipeline. The ventilation structure can elastically deform according to the storage amount of the aerosol generating matrix in the material storage cavity so as to adjust the capacity of the material storage cavity.

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. Long-term inhalation of these substances can be extremely harmful to the human body. To overcome the harmful substances produced by cigarette combustion, low-hazard aerosol generating devices have emerged. Their core principle is to heat and atomize the aerosol-generating substrate through an atomizer, forming an aerosol for the user to inhale. The performance of the atomizer directly affects the taste, user experience, and safety of the aerosol.

[0003] However, most traditional aerosol-generating devices use a passive oil supply method, where the atomizer core relies on a continuous supply of oil from the surrounding oil reservoir. This method offers no control over oil flow, meaning the atomizer core is typically supplied with oil from the surrounding oil reservoir, regardless of the atomizer core's operating state. This can easily lead to oil leaks. Furthermore, the high temperature of the atomizer core can easily transfer heat to the surrounding oil reservoir, affecting the quality of unused oil. Furthermore, air pressure management is a crucial factor in the design and use of the oil reservoir. As the oil level decreases, the negative pressure within the reservoir gradually increases, affecting the oil transfer rate. Specifically, this increased negative pressure can hinder the flow of oil between the reservoir and the atomizer, resulting in inconsistent oil supply rates. When the negative pressure within the reservoir is excessive, the oil supply may be insufficient, leading to dry burning. This not only affects the user experience but can also damage the device. Insufficient oil supply will also lead to inconsistent taste when smoking. Users may feel fluctuations in the amount of smoke and changes in taste during use, affecting the overall smoking experience.

[0004] The above information disclosed in the background of this application is only used to understand the background of the concept of this application, and does not indicate or suggest that it contains information of the prior art. Summary of the Invention

[0005] Based on this, it is necessary to provide an atomization device and an aerosol generating equipment to address the above problems.

[0006] An atomizing device, comprising:

[0007] an atomizing assembly, the atomizing assembly being used to atomize an aerosol-generating substrate to form an aerosol;

[0008] a suction assembly, the suction assembly comprising a pipe and a pump body connected to the pipe, one end of the pipe being in communication with the atomizing assembly to supply the aerosol-generating substrate to the atomizing assembly; and

[0009] A material storage component, the material storage component includes a ventilation structure and a housing. The interior of the housing is hollow and is provided with an installation opening. The ventilation structure is hermetically embedded in the installation opening. The ventilation structure and the inner surface of the housing enclose a material storage cavity for loading the aerosol generating substrate. Either the housing or the ventilation structure is provided with a discharge port communicating with the material storage cavity, and the discharge port communicates with the other end of the pipeline; the ventilation structure can elastically deform according to the stock of the aerosol generating substrate in the material storage cavity to adjust the capacity of the material storage cavity.

[0010] The above atomizing device can at least achieve the following beneficial effects: By controlling the supply of the aerosol generating substrate through the pump body in the suction component, on-demand oil supply to the atomizing component is realized, avoiding the oil leakage problem caused by continuous penetration in the traditional passive oil supply method, and improving the reliability of the device. And the aerosol generating substrate is only supplied through the pump body when the atomizing component is working, avoiding the heat deterioration of the e-liquid in the non-working state, and ensuring the quality and taste of the e-liquid. Either the housing or the ventilation structure is provided with a discharge port communicating with the material storage cavity, which is convenient for the aerosol generating substrate in the material storage cavity to be pumped out and supplied to the atomizing component. The ventilation structure can elastically deform according to the quantity of the aerosol generating substrate in the material storage cavity, dynamically adjusting the capacity of the material storage cavity, avoiding excessive negative pressure in the material storage cavity, ensuring stable and sufficient oil supply to the atomizing component, and avoiding the dry burning phenomenon caused by insufficient oil supply. When the aerosol generating substrate in the material storage cavity decreases, the ventilation structure contracts inward to reduce the capacity of the material storage cavity; when the aerosol generating substrate in the material storage cavity increases, the ventilation structure expands outward to increase the capacity of the material storage cavity. This dynamic adjustment function enables the material storage component to adapt to different stocks of the aerosol generating substrate, ensuring that the aerosol generating substrate in the material storage cavity can be fully and smoothly supplied from the discharge port. It can be understood that during the process of the gradual reduction of the aerosol generating substrate in the material storage cavity, the elastic deformation of the ventilation structure can balance the pressure in the material storage cavity. If the ventilation structure does not contract inward into the material storage cavity to reduce the capacity of the material storage cavity, a vacuum negative pressure area will be formed in the material storage cavity, affecting the smooth supply of the aerosol generating substrate from the discharge port to the outside.

[0011] In some of these embodiments, the material storage assembly further includes a bottom cover, which is disposed on the side of the air exchange structure facing away from the material storage cavity and is connected to the housing. The bottom cover is provided with ventilation holes. The arrangement of the ventilation holes enables air pressure balance between the material storage cavity and the external environment. When the air exchange structure undergoes elastic deformation due to the reduction of the aerosol-forming substrate, external air can enter the space between the air exchange structure and the bottom cover through the ventilation holes, avoiding the problem of poor oil supply caused by air pressure changes. It can be understood that during the process of the gradual reduction of the aerosol-forming substrate in the material storage cavity, the air exchange structure contracts towards the interior of the material storage cavity. Without ventilation holes, a vacuum negative pressure area may be formed between the air exchange structure and the bottom cover, hindering further deformation of the air exchange structure. The design of the ventilation holes effectively avoids this phenomenon and ensures the normal operation of the air exchange structure.

[0012] In some of these embodiments, when the quantity of the aerosol-forming substrate in the material storage cavity increases, the air exchange structure can elastically deform according to the stock of the aerosol-forming substrate in the material storage cavity to increase the capacity of the material storage cavity. The gas on the side of the air exchange structure facing away from the material storage cavity can be discharged through the ventilation holes to maintain air pressure balance between the material storage cavity and the outside; when the quantity of the aerosol-forming substrate in the material storage cavity decreases, the air exchange structure can elastically deform according to the stock of the aerosol-forming substrate in the material storage cavity to reduce the capacity of the material storage cavity. The side of the air exchange structure facing away from the material storage cavity can receive gas from the outside through the ventilation holes to maintain air pressure balance between the material storage cavity and the outside. When the quantity of the aerosol-forming substrate in the material storage cavity increases, the air exchange structure can expand outwards according to the stock of the aerosol-forming substrate in the material storage cavity to increase the capacity of the material storage cavity. During this process, the gas on the side of the air exchange structure facing away from the material storage cavity can be discharged through the ventilation holes provided on the bottom cover, thereby maintaining air pressure balance between the material storage cavity and the outside. This design avoids the problem of increased air pressure caused by the increase of the aerosol-forming substrate and ensures the pressure stability inside the device. When the quantity of the aerosol-forming substrate in the material storage cavity decreases, the air exchange structure can contract inwards according to the stock of the aerosol-forming substrate in the material storage cavity to reduce the capacity of the material storage cavity. During this process, the side of the air exchange structure facing away from the material storage cavity can receive gas from the outside through the ventilation holes provided on the bottom cover, thereby maintaining air pressure balance between the material storage cavity and the outside. This design avoids the negative pressure problem caused by the reduction of the aerosol-forming substrate and ensures the pressure stability inside the device.

[0013] In some of these embodiments, the bottom cover is detachably connected to the housing. The detachable connection between the bottom cover and the housing not only facilitates assembly during manufacturing but also enables easy disassembly of the bottom cover later, thus facilitating maintenance of the material storage cavity, the air exchange structure, and other internal components.

[0014] In some of these embodiments, a plurality of first engaging portions are provided at intervals on the periphery of the bottom cover, and a plurality of second engaging portions are provided at intervals on the periphery of the mounting opening of the housing. The first engaging portions correspond to the second engaging portions one by one, and the bottom cover is engaged with the housing by the cooperation of the plurality of first engaging portions and the plurality of second engaging portions.

[0015] In some of these embodiments, either the bottom cover or the ventilation structure is provided with a limiting convex portion, and the other of the bottom cover and the ventilation structure is provided with a limiting concave portion. The limiting convex portion is inserted into the limiting concave portion to limit the relative position of the bottom cover and the ventilation structure. The design of the limiting structure makes the assembly of the bottom cover and the ventilation structure simpler and more efficient. The precise positioning between the bottom cover and the ventilation structure can be completed by simply aligning the limiting convex portion and inserting it into the limiting concave portion, avoiding assembly errors or functional abnormalities caused by position deviation and reducing the assembly difficulty. Through the constraint of the limiting structure, the relative position between the bottom cover and the ventilation structure is fixed, enhancing the stability of the overall structure and preventing loosening or displacement during the operation of the device.

[0016] In some of these embodiments, a through hole is provided on the bottom cover, and a discharge pipe is provided on the ventilation structure. The end of the discharge pipe is provided with the discharge port, and the discharge pipe is communicated with the through hole or the discharge pipe passes through the through hole.

[0017] In some of these embodiments, the pump body is provided between the material storage assembly and the atomization assembly. The atomization assembly includes an oil storage cotton and an atomization core provided in the oil storage cotton. One end of the pipeline is inserted into the oil storage cotton and can actively supply oil to the oil storage cotton under the drive of the pump body.

[0018] In some of these embodiments, the pump body has a first working state and a second working state. In the first working state, the pipeline is blocked by the pump body to stop the pipeline from actively supplying oil to the atomization assembly. In the second working state, the material storage cavity can be communicated with the atomization assembly through the pipeline, and the pipeline can actively supply oil to the atomization assembly under the drive of the pump body.

[0019] In some of these embodiments, the ventilation structure includes an annular portion and a deformable portion connected to the annular portion. The annular portion is hermetically embedded in the installation opening, and the deformable portion can switch between an extended form and a folded form; when the deformable portion is in the extended form, the capacity of the material storage cavity is the largest; when the deformable portion is in the folded form, the capacity of the material storage cavity is the smallest; during the process of the deformable portion switching from the extended form to the folded form, the deformable portion moves in a direction close to the installation opening; during the process of switching from the folded form to the extended form, the deformable portion moves in a direction away from the installation opening. The annular portion is hermetically embedded in the installation opening, ensuring a tight and leak-free connection between the ventilation structure and the installation opening, and preventing the aerosol-forming matrix in the material storage cavity from leaking out. When the deformable portion switches its form, its movement does not damage the sealing performance, ensuring that the material storage cavity can maintain a reliable sealing performance in different capacity states. The deformable portion can switch between the extended form and the folded form, enabling the capacity of the material storage cavity to be dynamically adjusted between the maximum capacity and the minimum capacity according to actual needs.

[0020] In some of these embodiments, a first auxiliary fold is formed at the junction of the deformable portion and the annular portion, surrounding the annular portion. During the process of the deformable portion switching from the extended form to the folded form, the first auxiliary fold can assist the deformable portion to move in a direction close to the installation opening and fold inside the annular portion. When the deformable portion switches from the extended form to the folded form, the first auxiliary fold can assist the deformable portion to move in a direction close to the installation opening, ensuring a smoother and more accurate folding process. Moreover, the design of the first auxiliary fold reduces the resistance between the deformable portion and the annular portion during the folding process, making the folding easier and more efficient. The design of the first auxiliary fold makes the folding movement of the deformable portion more controllable, avoiding jamming or deformation caused by disorderly movement, and ensuring the accuracy and reliability of the folding process. The first auxiliary fold can also reduce the stress concentration of the material during repeated folding, reducing the risk of material fatigue and damage. With the assistance of the first auxiliary fold, the deformable portion in the folded form can be tightly folded inside the annular portion, maximizing the capacity of the material storage cavity.

[0021] In some of these embodiments, the deformable portion includes a plurality of folding bodies sequentially stacked and connected to the annular portion. A second auxiliary fold is formed at the junction of any two adjacent folding bodies. During the process of the deformable portion switching from the extended form to the folded form, the second auxiliary fold can assist the upper folding body to move in the direction close to the mounting opening and fold into the lower folding body. The deformable portion is formed by sequentially stacking and connecting a plurality of folding bodies, and each folding body can be independently folded to form a hierarchical folding structure. Each folding body is connected to an adjacent folding body through a second auxiliary fold. During the folding process, the upper folding body can move in the direction close to the mounting opening and fold into the lower folding body, realizing segmented folding and ensuring the uniformity and stability of the folding process. When the deformable portion switches from the extended form to the folded form, the second auxiliary fold can assist the upper folding body to move in the direction close to the mounting opening, making the folding movement of each folding body more controllable, avoiding jamming or deformation caused by disorderly movement, enabling the folding body to smoothly transition during the folding process, and ensuring the accuracy and reliability of the folding process. The design of the second auxiliary fold reduces the resistance between adjacent folding bodies, making the folding process smoother and more efficient, and avoiding jamming or deformation caused by excessive resistance. The hierarchical folding structure enables the deformable portion in the folded form to be tightly folded, maximizing the capacity of the material storage cavity.

[0022] In some of these embodiments, the folding body includes a first folding body and a second folding body sequentially stacked and connected to the annular portion. The first folding body is connected to the annular portion and a first auxiliary fold is formed at their junction. A second auxiliary fold surrounding the first folding body is formed at the junction of the second folding body and the first folding body. During the process of the deformable portion switching from the extended form to the folded form, the second auxiliary fold can assist the second folding body to move in the direction close to the mounting opening and fold into the first folding body. When the deformable portion switches from the extended form to the folded form, the first auxiliary fold can guide the first folding body to move in the direction close to the mounting opening, and the second auxiliary fold can assist the second folding body to move in the direction close to the mounting opening and fold into the first folding body, further optimizing the folding effect and ensuring the uniformity and stability of the folding process. This segmented folding makes the folding of the deformable portion more uniform and controllable. The second folding body folds into the first folding body, enabling the deformable portion to be tightly folded and maximizing the capacity of the material storage cavity.

[0023] In some of these embodiments, when the deformation part is in the folded state, the second folding body is folded within the first folding body and has an M-shaped cross-sectional profile. The second folding body can be tightly folded within the first folding body to form a substantially M-shaped folding structure, minimizing the occupied space and increasing the capacity of the material storage cavity. In addition, the symmetry of the M-shaped structure makes the stress distribution during the folding process more uniform, avoiding deformation or damage caused by local stress concentration and ensuring the stability of the folded state.

[0024] In some of these embodiments, a third auxiliary fold is provided on the side of the second folding body facing away from the mounting opening. When the deformation part is in the folded state, the second folding body is folded in half along the third auxiliary fold. The third auxiliary fold provides a clear folding guide for the second folding body, ensuring that it is folded in half along a predetermined direction, making the folding process of the second folding body more orderly and controllable, avoiding jamming or deformation caused by disorderly folding, and ensuring the smoothness and efficiency of the folding process.

[0025] In some of these embodiments, the thickness of the first auxiliary fold is less than the thickness of the annular part.

[0026] In some of these embodiments, the thickness of the first auxiliary fold is less than the thickness of the folding body. The reduction in the thickness of the first auxiliary fold makes this area more flexible during the folding process, enabling it to more precisely guide the deformation part to move in the direction close to the mounting opening, avoiding deviation or jamming during the folding process, improving the accuracy and controllability of folding, and ensuring a smoother folding process.

[0027] In some of these embodiments, the thickness of the second auxiliary fold is less than the thickness of the folding body. The reduction in the thickness of the second auxiliary fold makes this area more flexible during the folding process, enabling it to more precisely guide the folding body to move in the direction close to the mounting opening, avoiding deviation or jamming during the folding process, improving the accuracy and controllability of folding, and ensuring a smoother folding process.

[0028] In some of these embodiments, the pipeline is a flexible tube, and the pump body is any one of a peristaltic pump, a diaphragm pump, and a screw pump. Taking the peristaltic pump as an example, the core components of the peristaltic pump may include a flexible tube and rollers. The flexible tube is installed inside the pump body, and the rollers squeeze the pipeline by rotating, pushing the liquid inside the pipeline to flow. The peristaltic pump can precisely control the flow rate of the aerosol generation matrix inside the pipeline by adjusting the extrusion frequency or the rotational speed of the rollers. When the rollers rotate, they will sequentially squeeze the flexible tube to form a closed liquid chamber. As the rollers continue to rotate, the squeezed pipeline gradually returns to its original shape, generating negative pressure and sucking in the liquid. When the rollers rotate to the highest point, they will completely squeeze the pipeline, cutting off the path of liquid flow, thereby achieving the partition of the pipeline, which can effectively prevent the aerosol generation matrix on the side close to the atomization component from flowing back, ensure the reliability of unidirectional transportation, and avoid the contamination of the aerosol generation matrix in the storage cavity. The peristaltic pump transports the aerosol generation matrix by squeezing the flexible tube, and the aerosol generation matrix only contacts the inner wall of the pipeline, avoiding the contamination of the internal parts of the pump body and ensuring the purity of the transported aerosol generation matrix.

[0029] In some of these embodiments, the air exchange structure includes at least one of silica gel and rubber. Silica gel has good flexibility and elasticity and can withstand multiple bends and stretches without being easily deformed, making it suitable for application scenarios that require frequent deformation. Rubber has excellent wear resistance, can withstand long-term use and friction, extends the service life of the air exchange structure, and is not easily aged during long-term use, being able to maintain stable performance, making it suitable for application scenarios that require long-term use.

[0030] In some of these embodiments, the housing is a transparent housing. The transparent housing makes the internal structure and working state of the device visible, facilitating the user to know the stock of the aerosol generation matrix in real time.

[0031] This application also provides an aerosol generating device, which includes a power supply device and the atomization device as described in any of the above embodiments, and the power supply device can supply power to the atomization device.

[0032] The above aerosol generating device may be provided with the atomizing device described in each of the above embodiments. Therefore, the aerosol generating device also has at least the following beneficial effects: The atomizing device of the aerosol generating device controls the supply of the aerosol generating matrix through the pump body in the suction assembly, realizing the on-demand oil supply to the atomizing assembly, avoiding the oil leakage problem caused by continuous penetration in the traditional passive oil supply method, and improving the reliability of the device. And the aerosol generating matrix is only supplied through the pump body when the atomizing assembly is working, avoiding the deterioration of the e-liquid due to heat in the non-working state, and ensuring the quality and taste of the e-liquid. Among them, the ventilation structure elastically deforms according to the quantity of the aerosol generating matrix in the storage cavity, dynamically adjusting the capacity of the storage cavity, avoiding excessive negative pressure in the storage cavity, ensuring stable and sufficient oil supply to the atomizing assembly, and avoiding the dry burning phenomenon caused by insufficient oil supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0034] Figure 1 FIG. is a schematic structural diagram of an aerosol generating device provided by an embodiment of the present invention.

[0035] Figure 2 FIG. is a schematic structural diagram of an atomizing device provided by an embodiment of the present invention.

[0036] Figure 3 FIG. is a partial exploded view of a storage assembly and a suction assembly provided by an embodiment of the present invention.

[0037] Figure 4 FIG. is an exploded view of a storage assembly provided by an embodiment of the present invention.

[0038] Figure 5 FIG. is another exploded view of a storage assembly provided by an embodiment of the present invention.

[0039] Figure 6 FIG. is a cross-sectional view of a storage assembly provided by an embodiment of the present invention, in which the ventilation structure is in an extended state.

[0040] Figure 7 FIG. is a cross-sectional view of a storage assembly provided by an embodiment of the present invention, in which the ventilation structure is in a folded state.

[0041] Figure 8 FIG. is a schematic structural diagram of a ventilation structure provided by an embodiment of the present invention, in which the ventilation structure is in an extended state.

[0042] Figure 9 A schematic structural diagram of a ventilation structure provided by an embodiment of the present invention, wherein the ventilation structure is in a folded state.

[0043] Reference numerals:

[0044] 10. Aerosol generating device; 11. Atomizing device; 100. Atomizing assembly; 110. Oil storage cotton; 120. Atomizing core; 200. Suction assembly; 210. Pipeline; 220. Pump body; 300. Material storage assembly; 310. Ventilation structure; 311. Annular part; 3111. Sealing rib; 312. Deformable part; 3121. First folding body; 3122. Second folding body; 3131. First auxiliary fold; 3132. Second auxiliary fold; 3133. Third auxiliary fold; 314. Discharge port; 315. Limiting convex part; 316. Discharge pipe; 320. Housing; 321. Installation port; 322. Second clamping part; 330. Material storage cavity; 340. Bottom cover; 341. First clamping part; 342. Ventilation hole; 343. Limiting concave part; 344. Through hole. Detailed implementation manners

[0045] To make the above objects, features, and advantages of the present invention more obvious and understandable, the following will describe the detailed implementation manners of the present invention with reference to the accompanying drawings. Many specific details are set forth in the following description to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0046] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5, in some embodiments, the present application provides an atomization device 11, which includes an atomization component 100, a suction component 200, and a storage component 300. The atomization component 100 is configured to atomize an aerosol-forming substrate to form an aerosol; the suction component 200 includes a pipe 210 and a pump body 220 connected to the pipe 210, and one end of the pipe 210 is in communication with the atomization component 100 to supply the aerosol-forming substrate to the atomization component 100; the storage component 300 includes a ventilation structure 310 and a housing 320, the interior of the housing 320 is hollow and is provided with an installation opening 321, the ventilation structure 310 is hermetically embedded in the installation opening 321, and the ventilation structure 310 and the inner surface of the housing 320 enclose a storage cavity 330 for loading the aerosol-forming substrate. An outlet 314 communicating with the storage cavity 330 is provided in either one of the housing 320 and the ventilation structure 310, and the outlet 314 is in communication with the other end of the pipe 210. As Figure 6 , Figure 7 , Figure 8 and Figure 9 shown, the ventilation structure 310 can elastically deform according to the stock of the aerosol-forming substrate in the storage cavity 330 to adjust the capacity of the storage cavity 330. Among them, the aerosol-forming substrate may refer to a material that can atomize to provide aerosol components under certain conditions, such as one or more of e-liquid, vape juice, tobacco derivatives, or tobacco substitutes.

[0047] The above atomization device 11 can at least achieve the following beneficial effects: By controlling the supply of the aerosol-forming substrate through the pump body 220 in the suction assembly 200, on-demand oil supply to the atomization assembly 100 is realized, avoiding the oil leakage problem caused by continuous penetration in the traditional passive oil supply method and improving the reliability of the device. And the aerosol-forming substrate is only supplied through the pump body 220 when the atomization assembly 100 is working, avoiding the thermal deterioration of the e-liquid in the non-working state and ensuring the quality and taste of the e-liquid. An outlet communicating with the storage cavity is provided in either the housing or the ventilation structure, facilitating the extraction of the aerosol-forming substrate in the storage cavity and its supply to the atomization assembly. The side of the ventilation structure 310 facing away from the storage cavity 330 can communicate with the outside, enabling gas exchange with the external environment to achieve air pressure balance. The ventilation structure 310 can be a flexible member, which can elastically deform according to the quantity of the aerosol-forming substrate in the storage cavity 330, dynamically adjusting the capacity of the storage cavity 330, avoiding excessive negative pressure in the storage cavity 330, ensuring stable and sufficient oil supply to the atomization assembly 100, and avoiding the dry burning phenomenon caused by insufficient oil supply. When the aerosol-forming substrate in the storage cavity 330 decreases, the ventilation structure 310 contracts inward, reducing the capacity of the storage cavity 330; when the aerosol-forming substrate in the storage cavity 330 increases, the ventilation structure 310 expands outward, increasing the capacity of the storage cavity 330. This dynamic adjustment function enables the storage assembly 300 to adapt to different stocks of the aerosol-forming substrate, ensuring that the aerosol-forming substrate in the storage cavity 330 can be supplied out smoothly and sufficiently from the outlet. It can be understood that during the process of the gradual reduction of the aerosol-forming substrate in the storage cavity 330, the elastic deformation of the ventilation structure 310 can balance the pressure in the storage cavity. If the ventilation structure 310 does not contract inward to the storage cavity to reduce the capacity of the storage cavity 330, a vacuum negative pressure area will be formed in the storage cavity 330, affecting the smooth supply of the aerosol-forming substrate from the outlet.

[0048] Such as Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7As shown, in some of these embodiments, the storage component 300 further includes a bottom cover 340. The bottom cover 340 is disposed on a side of the air exchange structure 310 facing away from the storage cavity 330 and is connected to the housing 320. An air vent 342 is formed in the bottom cover 340. The provision of the air vent 342 enables air pressure balance to be achieved between the storage cavity 330 and the external environment. When the air exchange structure 310 undergoes elastic deformation due to the reduction of the aerosol-forming substrate, outside air can enter the space between the air exchange structure 310 and the bottom cover 340 through the air vent 342, avoiding problems such as poor oil supply caused by air pressure changes. It can be understood that during the process of the gradual reduction of the aerosol-forming substrate in the storage cavity 330, the air exchange structure 310 contracts towards the interior of the storage cavity 330. Without the air vent 342, a vacuum negative pressure area may be formed between the air exchange structure 310 and the bottom cover 340, hindering further deformation of the air exchange structure 310. The design of the air vent 342 effectively avoids this phenomenon, ensuring that the air exchange structure 310 can operate normally.

[0049] As Figure 6 and Figure 7As shown, in some of the embodiments, when the quantity of the aerosol - generating substrate in the storage cavity 330 increases, the ventilation structure 310 can elastically deform according to the stock of the aerosol - generating substrate in the storage cavity 330 to increase the capacity of the storage cavity 330. The gas on the side of the ventilation structure 310 facing away from the storage cavity 330 can be discharged from the ventilation holes 342 to maintain the air - pressure balance between the storage cavity 330 and the outside. When the quantity of the aerosol - generating substrate in the storage cavity 330 decreases, the ventilation structure 310 can elastically deform according to the stock of the aerosol - generating substrate in the storage cavity 330 to reduce the capacity of the storage cavity 330. The side of the ventilation structure 310 facing away from the storage cavity 330 can receive gas from the outside through the ventilation holes 342 to maintain the air - pressure balance between the storage cavity 330 and the outside. When the quantity of the aerosol - generating substrate in the storage cavity 330 increases, the ventilation structure 310 can expand outward according to the stock of the aerosol - generating substrate in the storage cavity 330 to increase the capacity of the storage cavity 330. During this process, the gas on the side of the ventilation structure 310 facing away from the storage cavity 330 can be discharged through the ventilation holes 342 opened on the bottom cover 340, thus maintaining the air - pressure balance between the storage cavity 330 and the outside. This design avoids the problem of increased air pressure caused by the increase in the aerosol - generating substrate and ensures the pressure stability inside the device. When the quantity of the aerosol - generating substrate in the storage cavity 330 decreases, the ventilation structure 310 can contract inward according to the stock of the aerosol - generating substrate in the storage cavity 330 to reduce the capacity of the storage cavity 330. During this process, the side of the ventilation structure 310 facing away from the storage cavity 330 can receive gas from the outside through the ventilation holes 342 opened on the bottom cover 340, thus maintaining the air - pressure balance between the storage cavity 330 and the outside. This design avoids the negative - pressure problem caused by the decrease in the aerosol - generating substrate and ensures the pressure stability inside the device.

[0050] As Figure 4 and Figure 5 shown, in some of the embodiments, the bottom cover 340 is detachably connected to the housing 320. The detachable connection between the bottom cover 340 and the housing 320 not only facilitates the assembly during manufacturing but also enables the easy disassembly of the bottom cover 340 in the later stage, thus facilitating the maintenance of the storage cavity 330, the ventilation structure 310, and other internal components.

[0051] As Figure 4 and Figure 5As shown, in some of the embodiments, a plurality of first engaging portions 341 are provided at intervals on the periphery of the bottom cover 340, and a plurality of second engaging portions 322 are provided at intervals on the periphery of the mounting opening 321 of the housing 320. The first engaging portions 341 and the second engaging portions 322 correspond to each other one by one, and the bottom cover 340 is engaged with the housing 320 by the cooperation of the plurality of first engaging portions 341 and the plurality of second engaging portions 322.

[0052] As Figure 4 shown, in some of the embodiments, a limiting convex portion 315 is provided on either one of the bottom cover 340 and the ventilation structure 310, and a limiting concave portion 343 is provided on the other one of the bottom cover 340 and the ventilation structure 310. The limiting convex portion 315 is inserted into the limiting concave portion 343 to limit the relative position between the bottom cover 340 and the ventilation structure 310. The design of the limiting structure makes the assembly of the bottom cover 340 and the ventilation structure 310 simpler and more efficient. The precise positioning between the bottom cover 340 and the ventilation structure 310 can be completed only by aligning the limiting convex portion 315 and inserting it into the limiting concave portion 343, avoiding assembly errors or functional abnormalities caused by position deviation and reducing the assembly difficulty. Through the constraint of the limiting structure, the relative position between the bottom cover 340 and the ventilation structure 310 is fixed, enhancing the stability of the overall structure and preventing loosening or displacement during the operation of the device.

[0053] As Figure 4 shown, in some of the embodiments, a through hole 344 is provided on the bottom cover 340, a discharge pipe 316 is provided on the ventilation structure 310, a discharge port 314 is formed at the end of the discharge pipe 316, and the discharge pipe 316 is communicated with the through hole 344 or the discharge pipe 316 passes through the through hole 344.

[0054] As Figure 6 、 Figure 7 、 Figure 8 and Figure 9As shown, in some of the embodiments, the ventilation structure 310 includes an annular portion 311 and a deformable portion 312 connected to the annular portion 311. The annular portion 311 is hermetically fitted into the mounting opening 321. Further, at least a part of the annular portion 311 is clamped between the bottom cover 340 and the inner wall of the mounting opening 321. A sealing rib 3111 may be formed on the outer circumferential surface of the annular portion 311, and the sealing rib 3111 is used to abut against the inner wall of the mounting opening 321 to achieve sealing. The deformable portion 312 can switch between an extended form and a folded form; when the deformable portion 312 is in the extended form, the capacity of the material storage cavity 330 is the largest; when the deformable portion 312 is in the folded form, the capacity of the material storage cavity 330 is the smallest; during the process of the deformable portion 312 switching from the extended form to the folded form, the deformable portion 312 moves in a direction close to the mounting opening 321; during the process of switching from the folded form to the extended form, the deformable portion 312 moves in a direction away from the mounting opening 321. The annular portion 311 is hermetically fitted into the mounting opening 321, ensuring a tight and leak-free connection between the ventilation structure 310 and the mounting opening 321, and preventing the aerosol-generating matrix in the material storage cavity 330 from leaking out. When the deformable portion 312 switches its form, its movement does not damage the sealing performance, ensuring that the material storage cavity 330 can maintain a reliable sealing performance in different capacity states. The deformable portion 312 can switch between the extended form and the folded form, enabling the capacity of the material storage cavity 330 to be dynamically adjusted between the maximum capacity and the minimum capacity according to actual needs.

[0055] As Figure 6 and Figure 8As shown, in some of these embodiments, at the junction of the deformation part 312 and the annular part 311, a first auxiliary fold 3131 is formed around the annular part 311. During the process of the deformation part 312 switching from the extended form to the folded form, the first auxiliary fold 3131 can assist the deformation part 312 to move in the direction close to the mounting opening 321 and fold within the annular part 311. When the deformation part 312 switches from the extended form to the folded form, the first auxiliary fold 3131 can assist the deformation part 312 to move in the direction close to the mounting opening 321, ensuring that the folding process is smoother and more precise. Moreover, the design of the first auxiliary fold 3131 reduces the resistance between the deformation part 312 and the annular part 311 during the folding process, making the folding easier and more efficient. The design of the first auxiliary fold 3131 makes the folding movement of the deformation part 312 more controllable, avoiding jamming or deformation caused by disorderly movement, and ensuring the accuracy and reliability of the folding process. When the deformation part 312 is folded, the first auxiliary fold 3131 can also reduce the stress concentration of the material during repeated folding, reducing the risk of material fatigue and damage. With the assistance of the first auxiliary fold 3131, the deformation part 312 in the folded form can be tightly folded within the annular part 311, maximizing the capacity of the material storage cavity 330.

[0056] As Figure 6 and Figure 8As shown, in some of the embodiments, the deformation part 312 includes a plurality of folding bodies that are sequentially stacked and connected to the annular part 311. A second auxiliary fold 3132 is formed at the connection between any two adjacent folding bodies. During the process of the deformation part 312 switching from the extended form to the folded form, the second auxiliary fold 3132 can assist the folding body of the upper layer to move in the direction close to the installation opening 321 and fold into the folding body of the lower layer. The deformation part 312 is formed by sequentially stacking and connecting a plurality of folding bodies. Each folding body can be independently folded to form a hierarchical folding structure. Each folding body is connected to the adjacent folding body through the second auxiliary fold 3132. During the folding process, the folding body of the upper layer can move in the direction close to the installation opening 321 and fold into the folding body of the lower layer, realizing segmented folding and ensuring the uniformity and stability of the folding process. When the deformation part 312 switches from the extended form to the folded form, the second auxiliary fold 3132 can assist the folding body of the upper layer to move in the direction close to the installation opening 321, making the folding movement of each folding body more controllable, avoiding jamming or deformation caused by disorderly movement, enabling the folding body to smoothly transition during the folding process, and ensuring the accuracy and reliability of the folding process. The design of the second auxiliary fold 3132 reduces the resistance between adjacent folding bodies, making the folding process smoother and more efficient, and avoiding jamming or deformation caused by excessive resistance. The hierarchical folding structure enables the deformation part 312 in the folded form to be tightly folded, maximizing the capacity of the material storage cavity 330.

[0057] As Figure 6 , Figure 7 , Figure 8 and Figure 9As shown, in some of these embodiments, the folding body includes a first folding body 3121 and a second folding body 3122 that are sequentially stacked and connected to the annular portion 311. The first folding body 3121 is connected to the annular portion 311, and a first auxiliary fold 3131 is formed at the junction between the two. A second auxiliary fold 3132 that surrounds the first folding body 3121 is formed at the junction between the second folding body 3122 and the first folding body 3121. During the process of the deformation portion 312 switching from the extended form to the folded form, the second auxiliary fold 3132 can assist the second folding body 3122 to move in the direction close to the mounting opening 321 and fold inside the first folding body 3121. When the deformation portion 312 switches from the extended form to the folded form, the first auxiliary fold 3131 can guide the first folding body 3121 to move in the direction close to the mounting opening 321, and the second auxiliary fold 3132 can assist the second folding body 3122 to move in the direction close to the mounting opening 321 and fold inside the first folding body 3121, further optimizing the folding effect and ensuring the uniformity and stability of the folding process. This segmented folding makes the folding of the deformation portion 312 more uniform and controllable. The second folding body 3122 is folded inside the first folding body 3121, enabling the deformation portion 312 to be tightly folded, maximizing the capacity of the material storage cavity 330.

[0058] As Figure 7 shown, in some of these embodiments, when the deformation portion 312 is in the folded form, the second folding body 3122 is folded inside the first folding body 3121 and the cross-sectional profile is M-shaped. The second folding body 3122 can be tightly folded inside the first folding body 3121 into a generally M-shaped folding structure, minimizing the occupied space and increasing the capacity of the material storage cavity 330. In addition, the symmetry of the M-shaped structure makes the stress distribution during the folding process more uniform, avoiding deformation or damage caused by local stress concentration and ensuring the stability of the folded form.

[0059] As Figure 6 、 Figure 7 、 Figure 8 and Figure 9 shown, in some of these embodiments, a third auxiliary fold 3133 is formed on the side of the second folding body 3122 facing away from the mounting opening 321. When the deformation portion 312 is in the folded form, the second folding body 3122 is folded in half along the third auxiliary fold 3133. The third auxiliary fold 3133 provides a clear folding guide for the second folding body 3122, ensuring that it is folded in half along a predetermined direction, making the folding process of the second folding body 3122 more orderly and controllable, avoiding jamming or deformation caused by disorderly folding, and ensuring the smoothness and efficiency of the folding process.

[0060] AsFigure 6 As shown, in some of the embodiments, the thickness of the first auxiliary fold 3131 is less than the thickness of the annular portion 311, the thickness of the first auxiliary fold 3131 is less than the thickness of the folded body, and the thickness of the second auxiliary fold 3132 is less than the thickness of the folded body. The thickness reduction of the first auxiliary fold 3131 makes this area more flexible during the folding process, enabling it to more precisely guide the deformation portion 312 to move in the direction close to the mounting opening 321, avoiding deviation or jamming during the folding process, improving the accuracy and controllability of folding, and ensuring a smoother folding process. The thickness reduction of the second auxiliary fold 3132 makes this area more flexible during the folding process, enabling it to more precisely guide the folded body to move in the direction close to the mounting opening 321, avoiding deviation or jamming during the folding process, improving the accuracy and controllability of folding, and ensuring a smoother folding process.

[0061] As Figure 2 shown, in some of the embodiments, the pump body 220 is disposed between the material storage assembly 300 and the atomization assembly 100. The atomization assembly 100 includes an oil storage cotton 110 and an atomization core 120 disposed within the oil storage cotton 110. One end of the pipeline 210 is inserted into the oil storage cotton 110 and can actively supply oil to the oil storage cotton 110 under the drive of the pump body 220.

[0062] In some of the embodiments, the pump body 220 has a first working state and a second working state. In the first working state, the pipeline 210 is blocked by the pump body 220 to stop the pipeline 210 from actively supplying oil to the atomization assembly 100. In the second working state, the material storage cavity 330 can communicate with the atomization assembly 100 through the pipeline 210 and the pipeline 210 can actively supply oil to the atomization assembly 100 under the drive of the pump body 220.

[0063] In some of these embodiments, the pipe 210 can be a flexible pipe, and the pump body 220 can be any one of a peristaltic pump, a diaphragm pump, and a screw pump. Taking the pump body as a peristaltic pump as an example, the core components of the peristaltic pump can include a flexible pipe and rollers. The flexible pipe is installed inside the pump body 220, and the rollers squeeze the pipe 210 by rotating, pushing the liquid inside the pipe 210 to flow. The peristaltic pump can precisely control the flow rate of the aerosol generation matrix inside the pipe 210 by adjusting the extrusion frequency or the rotational speed of the rollers. When the rollers rotate, they will sequentially squeeze the flexible pipe to form a closed liquid chamber. As the rollers continue to rotate, the squeezed pipe 210 gradually returns to its original shape, generating negative pressure and sucking in the liquid. When the rollers rotate to the highest point, they will completely squeeze the pipe 210, cutting off the path of liquid flow, thereby achieving the isolation of the pipe 210, which can effectively prevent the aerosol generation matrix on the side close to the atomization component 100 from flowing back, ensuring the reliability of unidirectional transportation and avoiding the contamination of the aerosol generation matrix in the storage chamber 330. The peristaltic pump transports the aerosol generation matrix by squeezing the flexible pipe, and the aerosol generation matrix only contacts the inner wall of the pipe 210, avoiding the contamination of the internal parts of the pump body 220 and ensuring the purity of the transported aerosol generation matrix. In some other embodiments, the pump body 220 can also be a piezoelectric pump.

[0064] In some of these embodiments, the air exchange structure 310 includes at least one of silica gel and rubber. Silica gel has good flexibility and elasticity and can withstand multiple bends and stretches without being easily deformed, making it suitable for application scenarios that require frequent deformation. Rubber has excellent wear resistance, can withstand long-term use and friction, extends the service life of the air exchange structure 310, and is not easily aged during long-term use, being able to maintain stable performance, making it suitable for application scenarios that require long-term use.

[0065] In some of these embodiments, the housing 320 is a transparent housing 320. The transparent housing 320 makes the internal structure and working state of the device visible, facilitating the user to know the stock of the aerosol generation matrix in real time.

[0066] In addition, as Figure 1 shown, the present application also provides an aerosol generating device 10, which includes a power supply device and the atomization device 11 as described in any of the above embodiments, and the power supply device can supply power to the atomization device 11.

[0067] The above aerosol generating device 10 may be provided with the atomizing device 11 described in the above embodiments. Therefore, the aerosol generating device 10 also has at least the following beneficial effects: The atomizing device 11 of the aerosol generating device 10 controls the supply of the aerosol generating substrate through the pump body 220 in the suction assembly 200, realizing the on-demand oil supply to the atomizing assembly 100, avoiding the oil leakage problem caused by continuous penetration in the traditional passive oil supply mode, and improving the reliability of the device. And the aerosol generating substrate is only supplied through the pump body 220 when the atomizing assembly 100 is working, avoiding the thermal deterioration of the e-liquid in the non-working state, and ensuring the quality and taste of the e-liquid. Among them, the ventilation structure 310 elastically deforms according to the quantity of the aerosol generating substrate in the storage cavity 330, dynamically adjusting the capacity of the storage cavity 330, avoiding excessive negative pressure in the storage cavity 330, ensuring a stable and sufficient oil supply to the atomizing assembly 100, and avoiding the dry burning phenomenon caused by insufficient oil supply.

[0068] In some of the embodiments, the aerosol generating device 10 may be an integrated aerosol generating device 10 or a split aerosol generating device 10. For example, the aerosol generating device 10 may be considered as a cartridge-based split aerosol generating device 10, which includes a cartridge and a stem that are detachably connected. The atomizing device 11 may be the cartridge, and the cartridge can be detachably plugged into and unplugged from the stem of the aerosol generating device 10 with a power source. For users, the atomizing device 11 and the power supply device can be simply disassembled and assembled to replace the atomizing device 11.

[0069] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0070] The above embodiments only represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the invention patent should be subject to the appended claims.

[0071] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "axial", "radial", "circumferential", "length", "width", "thickness", "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is 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 construed as a limitation to the present invention.

[0072] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0073] In the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0074] In the present invention, unless otherwise clearly specified and defined, terms such as "mounted", "connected", "connected to", "fixed" and the like should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and may be the internal connection of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0075] It should be noted that when an element is referred to as being "provided on", "fixed to", or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are only for illustrative purposes and do not represent the only implementation.

[0076] In the description of this specification, the description with reference to terms such as "one embodiment", "other embodiments", etc. means that the specific features, structures, materials or features described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic description of the above terms does 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 technical field to which this application belongs. The terms used in the specification of this application herein are only for the purpose of describing specific embodiments and are not intended to limit this application.

Claims

1. An atomization device, characterized in that, Comprising: An atomization component for atomizing an aerosol - generating substrate to form an aerosol; A suction component including a pipeline and a pump body connected to the pipeline. One end of the pipeline communicates with the atomization component to supply the aerosol - generating substrate to the atomization component; And A storage component including a ventilation structure and a housing. The housing is hollow inside and has an installation opening. The ventilation structure is hermetically embedded in the installation opening. The ventilation structure and the inner surface of the housing enclose a storage cavity for loading the aerosol - generating substrate. Either the housing or the ventilation structure has a discharge port communicating with the storage cavity, and the discharge port communicates with the other end of the pipeline; the ventilation structure can elastically deform according to the stock of the aerosol - generating substrate in the storage cavity to adjust the capacity of the storage cavity.

2. The atomization device according to claim 1, wherein The storage component further includes a bottom cover covering the side of the ventilation structure facing away from the storage cavity and connected to the housing, and the bottom cover is provided with ventilation holes.

3. The atomization device according to claim 2, characterized in that When the quantity of the aerosol - generating substrate in the storage cavity increases, the ventilation structure can elastically deform according to the stock of the aerosol - generating substrate in the storage cavity to increase the capacity of the storage cavity, and the gas on the side of the ventilation structure facing away from the storage cavity can be discharged from the ventilation holes to maintain the air pressure balance between the storage cavity and the outside; When the quantity of the aerosol - generating substrate in the storage cavity decreases, the ventilation structure can elastically deform according to the stock of the aerosol - generating substrate in the storage cavity to decrease the capacity of the storage cavity, and the side of the ventilation structure facing away from the storage cavity can receive gas from the outside through the ventilation holes to maintain the air pressure balance between the storage cavity and the outside.

4. The atomization device according to claim 2, characterized in that, The bottom cover is detachably connected to the housing.

5. The atomizing device according to claim 4, characterized in that, A plurality of first clamping portions are spaced apart on the periphery of the bottom cover, and a plurality of second clamping portions are spaced apart on the periphery of the housing at the installation opening. The bottom cover is clamped to the housing by the cooperation of the plurality of first clamping portions and the plurality of second clamping portions.

6. The atomization device according to claim 2, characterized in that Either the bottom cover or the ventilation structure is provided with a limiting convex portion, and the other of the bottom cover and the ventilation structure is provided with a limiting concave portion. The limiting convex portion is inserted into the limiting concave portion to limit the relative position between the bottom cover and the ventilation structure; And / or, the bottom cover is provided with a through - hole, the ventilation structure is provided with a discharge pipe, the end of the discharge pipe is provided with the discharge port, and the discharge pipe communicates with the through - hole or the discharge pipe passes through the through - hole.

7. The atomization device according to any one of claims 1 to 6, characterized in that The pump body is arranged between the storage component and the atomization component. The atomization component includes an oil - storage cotton and an atomization core arranged in the oil - storage cotton. One end of the pipeline is inserted into the oil - storage cotton and can actively supply oil to the oil - storage cotton under the drive of the pump body; And / or, the pump body has a first working state and a second working state. In the first working state, the pipeline is blocked by the pump body to stop the pipeline from actively supplying oil to the atomization assembly. In the second working state, the storage cavity can communicate with the atomization assembly through the pipeline, and the pipeline can actively supply oil to the atomization assembly under the drive of the pump body.

8. The atomization device according to any one of claims 1 to 6, characterized in that, The air exchange structure includes an annular part and a deformation part connected to the annular part. The annular part is hermetically embedded in the installation opening, and the deformation part can be switched between an extended form and a folded form; when the deformation part is in the extended form, the capacity of the storage cavity is the smallest; when the deformation part is in the folded form, the capacity of the storage cavity is the largest; during the process of the deformation part switching from the extended form to the folded form, the deformation part moves in a direction close to the installation opening; during the process of switching from the folded form to the extended form, the deformation part moves in a direction away from the installation opening.

9. The atomizing device according to claim 8, wherein A first auxiliary fold is formed at the connection between the deformation part and the annular part and is arranged around the annular part. During the process of the deformation part switching from the extended form to the folded form, the first auxiliary fold can assist the deformation part to move in a direction close to the installation opening and fold into the annular part.

10. The atomizing device according to claim 9, wherein, The deformation part includes a plurality of folding bodies sequentially and laminatedly connected to the annular part. A second auxiliary fold is formed at the connection between any two adjacent folding bodies. During the process of the deformation part switching from the extended form to the folded form, the second auxiliary fold can assist the upper folding body to move in a direction close to the installation opening and fold into the lower folding body.

11. The atomization device according to any one of claims 1 to 6, characterized in that The pipeline is a flexible pipe, and the pump body is any one of a peristaltic pump, a diaphragm pump, and a screw pump; And / or, the air exchange structure includes at least one of silica gel and rubber; And / or, the housing is a transparent housing.

12. An aerosol generating device, characterized in that, It includes a power supply device and the atomization device according to any one of claims 1 to 11, and the power supply device can supply power to the atomization device.

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