Aerosol-generating device

Abstract

The application relates to an aerosol generating device, comprising: a storage module having a first storage cavity for storing a liquid substrate inside; an atomization module comprising a second storage cavity for storing the liquid substrate and an atomization core for atomizing the liquid substrate to generate an aerosol, the first storage cavity and the second storage cavity having a liquid guide channel therebetween; and a driving module in airflow communication with the second storage cavity and configured to extract gas in the second storage cavity, or in airflow communication with the first storage cavity and configured to inject gas into the first storage cavity, so that the air pressure of the second storage cavity is lower than that of the first storage cavity, thereby promoting the liquid substrate in the first storage cavity to be guided into the second storage cavity through the liquid guide channel.

Description

Technical Field

[0001] This application relates to the field of aerosol generation technology, and in particular to an aerosol generation device. Background Technology

[0002] An aerosol generating device is a device capable of atomizing a liquid matrix to generate aerosols. An exemplary aerosol generating device exists, including an atomizing module, a pumping assembly, and a secondary oil tank for storing the liquid matrix. The atomizing module includes a main oil tank for storing the liquid matrix and an atomizing core for atomizing the liquid matrix. The pumping assembly replenishes the main oil tank with liquid matrix by pumping the liquid matrix from the secondary oil tank into the main oil tank. However, pumping the liquid matrix from the secondary oil tank into the main oil tank increases the air pressure in the main oil tank, making it prone to leakage due to excessive air pressure. Summary of the Invention

[0003] The purpose of this application is to provide an aerosol generating device that can prevent excessive gas pressure in the second storage chamber during the replenishment of liquid matrix.

[0004] At least one embodiment of this application provides an aerosol generating apparatus, and the aerosol generating apparatus includes;

[0005] The storage module has a first storage chamber inside for storing the liquid matrix;

[0006] An atomizing module includes a second storage chamber for storing a liquid matrix and an atomizing core for atomizing the liquid matrix to generate an aerosol, wherein a liquid guiding channel connects the first storage chamber and the second storage chamber; and

[0007] The drive module is in airflow communication with the second storage cavity and is configured to extract gas from the second storage cavity, or in airflow communication with the first storage cavity and is configured to inject gas into the first storage cavity, so that the gas pressure in the second storage cavity is lower than the gas pressure in the first storage cavity, thereby promoting the introduction of the liquid matrix in the first storage cavity into the second storage cavity through the liquid guiding channel.

[0008] As an example, the drive module includes a user-operable air extraction mechanism connected to the second storage cavity via a discharge channel, through which the air extraction mechanism extracts air from the second storage cavity to reduce air pressure.

[0009] As an example, a portion of the discharge channel passes through the first storage cavity.

[0010] As an example, the drive module includes a piston and a pump body with an internal pump chamber;

[0011] The piston is configured to move relative to the pump body between a first position and a second position, and during the movement from the second position to the first position, the pump chamber draws gas into the second storage chamber to reduce the gas pressure in the second storage chamber.

[0012] As an example, the drive module includes a flow channel that remains in communication with the first storage cavity, and the pump chamber is configured to inject gas into the first storage cavity through the flow channel to increase the gas pressure in the first storage cavity as the piston moves from the first position to the second position.

[0013] As an example, the pump body is provided with a flow guide port, and the drive module also includes a first one-way valve, and the pump chamber is connected to the second storage chamber when the flow guide port is open;

[0014] The first check valve is configured to keep the flow port sealed during the movement of the piston from the first position to the second position, and to open the flow port during the movement of the piston from the second position to the first position.

[0015] As an example, the first one-way valve includes a stationary portion, a resilient portion, and a moving portion for sealing the flow port. The moving portion is configured to open the flow port as the piston moves from the second position to the first position. The resilient portion connects the stationary portion and the moving portion, causing the moving portion to automatically return to a position sealing the flow port; or

[0016] The first one-way valve includes a movable part that is movable relative to the flow port, the movable part being configured to move against gravity to open the flow port when the air pressure in the pump chamber is lower than the air pressure in the second storage chamber, and the piston being configured to automatically reset to seal the flow port at least based on gravity.

[0017] As an example, the drive module also includes an operating element linked to the piston, the operating element being configured to be operable to drive the piston from the first position to the second position.

[0018] As an example, the actuator is provided with a first reflux orifice, which is configured to connect the first storage chamber and the pump chamber when the piston is in the second position.

[0019] As an example, the device also includes a support, with the atomizing module and the driving module held on the same side of the support, the storage module disposed on the other side of the support, and the support having a second reflux hole communicating with the first storage cavity;

[0020] The drive module also includes a return pipe with an internal return channel. One end of the return pipe is connected to the operating component, and the other end is connected to the bracket. The return channel connects the first return hole and the second return hole.

[0021] As an example, the drive module also includes a reset member that acts on the piston or the operating member to automatically reset the piston from the second position to the first position.

[0022] As an example, it also includes a suction nozzle, wherein the second storage cavity has a proximal end and a distal end disposed opposite to each other, and the suction nozzle is disposed near the proximal end of the second storage cavity;

[0023] The atomizing module includes an outlet port and a liquid inlet port. The driving module is connected to the outlet port to extract gas from the second storage chamber through the outlet port. The first storage chamber is connected to the liquid inlet port to replenish the second storage chamber with liquid matrix through the liquid inlet port.

[0024] The discharge port and / or the inlet port are located near the proximal end of the second storage cavity; and / or

[0025] The discharge port and / or the liquid inlet port are located closer to the proximal end than the atomizing core.

[0026] As an example, the flow cross-sectional area of ​​the discharge port is smaller than the flow cross-sectional area of ​​the inlet port; and / or

[0027] The diameter of the discharge hole is less than 1 mm; and / or

[0028] The diameter of the liquid inlet hole is greater than or equal to 1 mm.

[0029] As an example, it also includes a discharge pipe internally defining a discharge channel, the discharge pipe connecting the second storage cavity and the drive module, such that at least a portion of the fluid in the second storage cavity can enter the drive assembly, and at least a portion of the discharge pipe is generally U-shaped.

[0030] As an example, a second one-way valve is also included in the liquid channel, the second one-way valve being configured to prevent the liquid matrix in the second storage chamber from flowing to the first storage chamber.

[0031] As an example, it also includes a liquid guide tube that internally defines the liquid guide channel, the liquid guide tube having a fluid inlet located in the first storage cavity to guide the liquid matrix in the first storage cavity into the liquid guide channel, and the second one-way valve being disposed adjacent to the fluid inlet.

[0032] As an example, the atomizing module further includes a retaining tube surrounded by the second storage cavity and a liquid-absorbing medium disposed within the retaining tube. The retaining tube has a liquid guiding hole, and the atomizing core is disposed inside the liquid-absorbing medium. The liquid-absorbing medium is configured to absorb the liquid matrix in the second storage cavity through the liquid guiding hole and conduct at least a portion of the adsorbed liquid matrix to the atomizing core.

[0033] At least one embodiment of this application provides an aerosol generating apparatus, which includes:

[0034] The storage module has a first storage chamber inside for storing the liquid matrix;

[0035] An atomizing module includes a second storage chamber for storing a liquid matrix and an atomizing core for atomizing the liquid matrix to generate an aerosol, wherein a liquid guiding channel is provided between the first storage chamber and the second storage chamber; and

[0036] A drive module is configured to provide power to transport the liquid matrix in the first storage cavity to the second storage cavity through the liquid guiding channel, and the drive module has a return channel between the first storage cavity and the drive module, and a discharge channel between the drive module and the second storage cavity. The discharge channel is connected to the return channel through the drive module, so that the liquid matrix can circulate between the first storage cavity and the second storage cavity through the discharge channel, the return channel and the liquid guiding channel.

[0037] The aerosol generating device provided in the above embodiments includes a driving module, a storage module with a first storage cavity inside, and an atomizing module including a second storage cavity and an atomizing core. The first storage cavity and the second storage cavity are connected through a liquid guiding channel. When the liquid matrix in the second storage cavity is atomized and consumed by the atomizing core, the air pressure in the second storage cavity will decrease. The driving module can extract gas from the second storage cavity or inject gas into the first storage cavity, so that the air pressure in the second storage cavity is lower than that in the first storage cavity. When the air pressure in the second storage cavity is lower than that in the first storage cavity, the liquid matrix in the first storage cavity can automatically enter the second storage cavity, thereby replenishing the liquid matrix in the second storage cavity. Moreover, it can stop supplying liquid matrix to the second storage cavity when the air pressure in the second storage cavity is too high, thereby preventing the air pressure in the second storage cavity from becoming too high, and thus preventing the liquid matrix in the second storage cavity from leaking. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar parts or portions are generally identified by similar reference numerals. In the drawings, the parts or portions are not necessarily drawn to scale.

[0039] Figure 1 This is a schematic diagram of an aerosol generating apparatus provided in some embodiments of this application;

[0040] Figure 2 This is another schematic diagram of the aerosol generating apparatus provided in some embodiments of this application;

[0041] Figure 3 This is a schematic diagram of a partial structure of the aerosol generating apparatus provided in some embodiments of this application;

[0042] Figure 4 This is an exploded schematic diagram of a portion of the structure of the aerosol generating apparatus provided in some embodiments of this application;

[0043] Figure 5 This is another exploded schematic diagram of a portion of the structure of the aerosol generating apparatus provided in some embodiments of this application;

[0044] Figure 6 This is a schematic diagram of a first check valve provided in some embodiments of this application;

[0045] Figure 7 This is another schematic diagram of the first check valve provided in some embodiments of this application;

[0046] Figure 8 This is a schematic diagram of a second check valve provided in some embodiments of this application;

[0047] Figure 9 This is a schematic diagram of the operating components provided in some embodiments of this application;

[0048] In the picture:

[0049] 100. Aerosol generating device;

[0050] 1. Storage module; 11. First storage cavity;

[0051] 2. Atomizing module; 21. Second storage chamber; 22. Atomizing core; 23. Holding tube; 24. Discharge port; 25. Liquid inlet port; 26. Housing; 27. First protrusion; 28. Second protrusion; 29. ​​Liquid absorption medium;

[0052] 3. Drive module; 31. Piston; 311. First tubular body; 3111. First through hole; 312. Second tubular body; 3121. First stop part; 3122. Third stop part; 32. Flow guide channel; 33. Pump body; 331. Flow guide port; 332. Pump chamber; 34. First one-way valve; 341. Static part; 342. Elastic part; 343. Moving part; 344. Gravity block; 35. Operating component; 351. First return hole; 352. Third protrusion; 353. Fifth protrusion; 354. Cavity; 36. Reset component; 37. Sealing component; 371. Second stop part; 38. Cover; 381. Fourth stop part;

[0053] 4. Power supply components;

[0054] 5. Suction nozzle;

[0055] 6. Discharge pipe; 61. First discharge pipe; 62. Second discharge pipe;

[0056] 7. Liquid guide tube; 71. First liquid guide tube; 72. Second liquid guide tube; 721. Fluid inlet; 73. Frustum-shaped through hole; 74. Blocking part; 741. Flow guide hole;

[0057] 8. Support; 9. Return pipe;

[0058] 1a. Liquid guiding channel; 2a. Discharge channel; 3a. Second check valve; 4a. Return channel. Detailed Implementation

[0059] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0060] The terms "first," "second," and "third" used in this application are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number or order of the indicated technical features. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship or movement of the components in a specific orientation (as shown in the accompanying drawings). If the specific orientation changes, the directional indication will also change accordingly. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or devices.

[0061] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0062] It should be noted that when a part is referred to as being "fixed to" another part, it can be directly on the other part or there may be an intermediate part. When a part is referred to as being "connected to" another part, it can be directly connected to the other part, or there may be one or more intermediate parts present simultaneously. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0063] Please refer to Figure 1 and Figure 2 This application provides an aerosol generating device 100, which includes a storage module 1, an atomizing module 2, and a driving module 3. The storage module 1 has a first storage cavity 11 for storing a liquid matrix. The atomizing module 2 includes a second storage cavity 21 for storing a liquid matrix and an atomizing core 22 for atomizing the liquid matrix to generate aerosol. A liquid guiding channel 1a connects the first storage cavity 11 and the second storage cavity 21. The driving module 3 provides power to replenish the liquid matrix from the first storage cavity 11 to the second storage cavity 21 through the liquid guiding channel 1a, so that the atomizing core 22 can continue to work and the aerosol generating device 100 can continue to generate aerosol.

[0064] The liquid matrix is ​​liquid at room temperature. In some embodiments, the liquid matrix may comprise a liquid containing tobacco-containing substances with volatile tobacco aroma components. The liquid matrix may also comprise a liquid containing non-tobacco substances. The liquid matrix may comprise water, solvents, ethanol, plant extracts, fragrances, flavorings, or vitamin mixtures, etc. Fragrances may include, but are not limited to, areca nut extract, menthol, peppermint, spearmint oil, various fruit flavoring components, etc. Flavorings may contain ingredients that can provide the user with various fragrances or flavors. Vitamin mixtures may be mixtures containing at least one of vitamin A, vitamin B, vitamin C, and vitamin E, but are not limited to.

[0065] In some embodiments, the atomizing core 22 includes a liquid absorption assembly and a heating element, wherein the liquid absorption assembly is used to guide the liquid matrix to the heating element, thereby enabling at least a portion of the liquid matrix in the liquid absorption assembly to atomize and generate an aerosol under the heat released by the heating element.

[0066] The liquid absorption assembly may include a porous body. The porous body can be a fiber, such as cotton fiber, polypropylene fiber, polyester fiber, or nylon fiber. The porous body can also be porous ceramic or porous metal; this application does not limit the structure and composition of the porous body.

[0067] In some embodiments, the atomizing core 22 includes an ultrasonic element capable of generating ultrasonic waves, which enables the atomizing core 22 to atomize a liquid matrix into an aerosol. Of course, the atomizing core 22 may also include other elements capable of atomizing a liquid matrix into an aerosol, such as a nozzle capable of turning the liquid matrix into a mist.

[0068] In some embodiments, the aerosol generating device 100 is an electrically operated aerosol generating device, whereby the atomizing core 22 requires electrical power to atomize the liquid matrix to generate aerosol. Furthermore, the aerosol generating device 100 also includes a power module 4, which provides electrical power to the atomizing core 22 to atomize the liquid matrix and generate aerosol. The power module 4 may include any suitable battery, such as a lithium battery, a disposable battery, or a rechargeable battery.

[0069] In some embodiments, the atomizing module 2 further includes a retaining tube 23, which can guide the aerosol generated by the atomizing liquid matrix by the atomizing core 22 to the air outlet of the atomizing module 2, so that the aerosol can flow out of the atomizing module 2 through the air outlet.

[0070] In some embodiments, at least a portion of the atomizing core 22 is disposed in the retaining tube 23. Further, the retaining tube 23 extends longitudinally within the second storage cavity 21. In other embodiments (not shown), the atomizing module further includes a compartment in which the atomizing core is disposed. The compartment is in communication with the second storage cavity via a liquid channel, allowing a liquid matrix in the second storage cavity to be transferred to the atomizing core. The compartment is in fluid communication with the retaining tube, allowing the aerosol formed in the compartment to be discharged through the retaining tube.

[0071] In some embodiments, the atomizing module 2 further includes a liquid storage element (not shown), which has a large number of pores and is capable of adsorbing a large amount of liquid matrix. The liquid storage element is disposed in a storage cavity, and at least partially of the liquid matrix stored in the storage cavity is retained in the liquid storage element, thereby preventing the liquid matrix from leaking out of the storage cavity. The liquid storage element includes, but is not limited to, one of the following materials: cotton fiber, polypropylene fiber, polyester fiber, nylon fiber, porous ceramic material, polymer fiber, or various combinations of the above materials.

[0072] In some embodiments, the retaining tube 23 is surrounded by the second storage cavity 21. The atomizing module 2 further includes a liquid-absorbing medium 29 disposed within the retaining tube 23. The retaining tube 23 has liquid guiding holes. The atomizing core 22 is disposed inside the liquid-absorbing medium 29. The liquid-absorbing medium 29 is configured to absorb the liquid matrix in the second storage cavity 21 through the liquid guiding holes and conduct at least a portion of the absorbed liquid matrix to the atomizing core 22 for atomization. The liquid-absorbing medium 29 can store the liquid matrix, thereby helping to prevent the atomizing core 22 from burning out and helping to shorten the liquid absorption stroke of the atomizing core 22.

[0073] In some embodiments, reference may be made to Figure 1 The aerosol generating device 100 also includes a nozzle 5, at least a portion of which can be held in the mouth by a user, the nozzle 5 being used to introduce aerosols into the user's oral cavity.

[0074] Furthermore, the atomizing module 2 includes a nozzle 5, or the nozzle 5 of the aerosol generating device is disposed on the atomizing module 2, thereby the nozzle 5 includes the aforementioned air outlet 41. Even further, the nozzle 5 is integrally formed with the housing 2 of the atomizing module 2.

[0075] In some embodiments, the drive module 3 maintains airflow communication with the first storage cavity 11, and the drive module 3 is configured to inject gas into the first storage cavity 11 to increase the gas pressure in the first storage cavity 11, thereby making the gas pressure in the first storage cavity 11 higher than the gas pressure in the second storage cavity 21. Under this pressure difference, the first storage cavity 11 can automatically replenish the liquid matrix to the second storage cavity 21 through the liquid guiding channel 1a. In other words, the drive module 3 injects gas into the first storage cavity 11 to create a high pressure relative to the second storage cavity 21, and then the first storage cavity 11 automatically injects the liquid matrix into the second storage cavity 21 through the liquid guiding channel 1a to release the pressure. Therefore, it is not necessary to compress the wall of the liquid guiding channel 1a or the wall of the first storage cavity 11 to deform the wall of the liquid guiding channel 1a or the wall of the first storage cavity 11 to complete the replenishment of the liquid matrix from the first storage cavity 11 to the second storage cavity 12.

[0076] In some embodiments, the drive module 3 and the second storage cavity 21 have a discharge channel 2a that connects the two, and at least a portion of the fluid in the second storage cavity 21 can flow into the drive module 3 through the discharge channel 2a.

[0077] In some embodiments, the drive module 3 maintains airflow communication with the second storage cavity 21, and the drive module 3 is configured to extract gas from the second storage cavity 21, so that the gas pressure in the second storage cavity 21 is lower than the gas pressure in the first storage cavity 11. Under this pressure difference, the first storage cavity 11 can automatically replenish the liquid matrix to the second storage cavity 21 through the liquid guiding channel 1a. In other words, the drive module 3 creates a negative pressure in the second storage cavity 21 relative to the first storage cavity 11 by extracting gas from the second storage cavity 21, and then the second storage cavity 21 automatically draws liquid matrix from the first storage cavity 11 through the liquid guiding channel 1a. Therefore, it is not necessary to compress the wall of the liquid guiding channel 1a or the wall of the first storage cavity 11 to deform them, thus completing the replenishment of liquid matrix from the first storage cavity 11 to the second storage cavity 21. Furthermore, it can reduce the gas volume in the liquid matrix replenished from the first storage cavity 11 to the second storage cavity 21, helping to reduce air bubbles in the liquid matrix.

[0078] For example, the drive module 3 includes an air extraction mechanism, and an exhaust channel 2a is connected between the air extraction mechanism and the second storage cavity 21. The air extraction mechanism extracts air from the second storage cavity 21 through the exhaust channel 2a to reduce the air pressure in the second storage cavity 21. The air extraction mechanism can be an electric air extraction mechanism or a manual air extraction mechanism, and the air extraction mechanism can be operated by the user to extract air from the second storage cavity 21.

[0079] In some embodiments, reference may be made to Figure 3 and Figure 4The atomizing module 2 includes an outlet port 24 and an inlet port 25. The drive module 3 is connected to the outlet port 24. At least a portion of the fluid in the second storage chamber 21 can flow into the drive module 3 through the outlet port 24. The first storage chamber 11 is connected to the inlet port 25, and the first storage chamber 11 can replenish the liquid matrix into the second storage chamber 21 through the inlet port 25. The liquid guiding channel 1a is connected to the inlet port 25, or the liquid guiding channel 1a includes the inlet port 25. The outlet channel 2a is connected to the outlet port 24, or the outlet channel 2a includes the outlet port 24.

[0080] Furthermore, the aerosol generating device 100 also includes an exhaust pipe 6, in which at least a portion of the exhaust channel 2a is defined, one end of the exhaust pipe 6 being connected to the atomizing module 2 and the other end being connected to the driving module 3.

[0081] Furthermore, the atomizing module 2 includes a housing 26 and a first protrusion 27 connected to the housing 26. A second storage cavity 21 is formed within the housing 26, and at least a portion of the discharge port 24 is defined within the first protrusion 27. One end of the discharge pipe 6 is fitted into the first protrusion 27, either by fitting one end of the discharge pipe 6 into at least a portion of the discharge port 24 within the first protrusion 27, or by fitting at least a portion of the first protrusion 27 from the end of the discharge pipe 6 into the discharge pipe 6.

[0082] In some embodiments, at least a portion of the discharge pipe 6 is generally U-shaped, such that the discharge pipe 6 can store at least a portion of the liquid matrix overflowing or leaking from the second storage cavity 21 through the discharge hole 24 or the discharge channel 2a, thereby allowing the second storage cavity 21 to have a slight negative pressure relative to the outside atmosphere, which helps prevent leakage of the liquid matrix in the second storage cavity 21. When at least a portion of the discharge pipe 6 is generally U-shaped, at least a portion of the discharge channel 2a is also U-shaped.

[0083] In some embodiments, a portion of the discharge tube 6 is located within the first storage cavity 11. And / or, a portion of the discharge tube 6 extends through the first storage cavity 11, thereby allowing a portion of the discharge channel 2a to pass through the first storage cavity 11.

[0084] In some embodiments, the discharge pipe 6 includes a first discharge pipe 61 and a second discharge pipe 62. The first discharge pipe 61 is connected to the atomizing module 2 and extends outside the storage module 1. The second discharge pipe 62 is connected to the driving module 3. The first discharge pipe 61 and the second discharge pipe 62 can be interconnected by assembly, or the first discharge pipe 61 and the second discharge pipe 62 can be integrally formed. At least a portion of the second discharge pipe 62 is disposed in the first storage cavity 11 of the storage module 1, and at least a portion of the second discharge pipe 62 is approximately U-shaped.

[0085] In some embodiments, the aerosol generating device 100 further includes a liquid guide tube 7, in which the liquid guide channel 1a is at least partially defined, one end of the liquid guide tube 7 is connected to the atomizing module 2, and the other end is connected to the storage module 1.

[0086] Furthermore, the atomizing module 2 also includes a second protrusion 28 connected to the housing 26, with at least a portion of the liquid inlet 25 defined within the second protrusion 28. One end of the liquid guide tube 7 is fitted into the second protrusion 28, including either one end of the liquid guide tube 7 fitting into at least a portion of the discharge hole 24 within the second protrusion 28, or at least a portion of the second protrusion 28 fitting from the end of the liquid guide tube 7 into the liquid guide tube 7.

[0087] In some embodiments, the liquid guiding tube 7 includes a first liquid guiding tube 71 and a second liquid guiding tube 72. The first liquid guiding tube 71 is connected to the atomizing module 2 and extends outside the storage module 1. At least a portion of the second liquid guiding tube 72 may be disposed in the first storage cavity 11 of the storage module 1. The first liquid guiding tube 71 and the second liquid guiding tube 72 can be interconnected by assembly, or the first liquid guiding tube 71 and the second liquid guiding tube 72 can be integrally formed.

[0088] In some embodiments, reference may be made to Figure 8 The aerosol generating device 100 also includes a second one-way valve 3a disposed in the liquid guiding channel 1a. The second one-way valve 3a is configured to prevent the liquid matrix in the second storage chamber 21 from flowing to the first storage chamber 11, so that the liquid matrix in the liquid guiding channel 1a can only flow unidirectionally from the first storage chamber 11 to the second storage chamber 21.

[0089] Furthermore, a second one-way valve 3a is disposed in the second liquid guide tube 72. Even further, a fluid inlet 721 is provided on the second liquid guide tube 72, through which the liquid matrix in the first storage chamber 11 flows into the second liquid guide tube 72. The second one-way valve 3a is disposed adjacent to the fluid inlet 721, thereby preventing at least a portion of the liquid matrix in the guide channel 1a from flowing back into the first storage chamber 11, thus maintaining the liquid matrix in the guide channel 1a and improving the efficiency of replenishing the liquid matrix to the second storage chamber 21. Preferably, the fluid inlet 721 is disposed at the end of the second liquid guide tube 72 opposite to the first liquid guide tube 71. More preferably, the fluid inlet 721 is disposed adjacent to the bottom or distal end of the first storage chamber 11. The bottom or distal end of the first storage chamber 11 can be the end of the first storage chamber 11 opposite to the drive module 3 or the atomizing module 2.

[0090] In some embodiments, reference may be made to Figure 8The liquid guide tube 7 has a frustoconical through-hole 73 and a blocking part 74 with a flow guide hole 741 inside. The small end of the frustoconical through-hole 73 is set towards the fluid inlet 721, and the large end of the frustoconical through-hole 73 is set away from the fluid inlet 721. The second one-way valve 3a includes a ball plug. When the drive module 3 is not working (so the piston 313 is held in the first position), or when the piston 31 moves from the first position to the second position, the ball plug sinks into the frustoconical through-hole 73, thereby sealing the frustoconical through-hole 73. When the piston 31 moves from the second position to the first position in the drive module 3, the air pressure in the first storage chamber 11 is higher than the air pressure in the second storage chamber 21. Based on this air pressure difference, the ball plug is pushed up and blocked by the blocking part 74, so that the frustoconical through-hole 73 is opened, and then the liquid matrix in the first storage chamber 11 flows to the second storage chamber 21 through the liquid guide channel 1a.

[0091] In some embodiments, reference may be made to Figure 3 The second storage cavity 21 has a proximal end and a distal end arranged opposite to each other, with the nozzle 5 positioned near the proximal end of the second storage cavity 21. The discharge port 24 is positioned near the proximal end of the second storage cavity 21 to increase the threshold for overflow or leakage from the second storage cavity 21 through the discharge port 24 or discharge channel 2a. This helps the second storage cavity 21 store more liquid matrix, thereby allowing the liquid matrix in the second storage cavity 21 to fully wet the atomizing core 22 or to have a larger contact area or conductive area between the second storage cavity 21 and the atomizing core 22. It also helps to prevent the liquid matrix in the second storage cavity 21 from submerging the discharge port 24 and causing liquid matrix overflow or leakage when the aerosol generating device 100 is used at an angle.

[0092] In some embodiments, the discharge port 24 is located closer to the proximal end of the second storage cavity 21 than the atomizing core 22, so that when the aerosol generating device 100 is used at an angle, the atomizing core 22 can maintain a larger contact area or conductive area with the liquid matrix in the second storage cavity 21, which helps to keep the atomizing core 22 fully wetted and is beneficial to prevent the atomizing core 22 from burning dry.

[0093] In some embodiments, the liquid inlet 25 is positioned near the proximal end of the second storage cavity 21 to increase the threshold for overflow or leakage of the second storage cavity 21 through the liquid inlet 25 or the liquid guiding channel 1a. This helps the second storage cavity 21 store more liquid matrix, thereby enabling the liquid matrix in the second storage cavity 21 to fully wet the atomizing core 22 or to have a larger contact area or conductive area between the second storage cavity 21 and the atomizing core 22. It also helps to prevent the liquid matrix in the second storage cavity 21 from being submerged in the liquid inlet 25 when the aerosol generating device 100 is tilted due to use, thus preventing the liquid matrix from overflowing or leaking.

[0094] In some embodiments, the liquid inlet 25 is located closer to the proximal end of the second storage cavity 21 than the atomizing core 22, so that when the aerosol generating device 100 is used at an angle, the atomizing core 22 can maintain a larger contact area or conductive area with the liquid matrix in the second storage cavity 21, which helps to keep the atomizing core 22 fully wetted and is beneficial to prevent the atomizing core 22 from burning dry.

[0095] In some embodiments, reference may be made to Figure 3 and Figure 4 The flow cross-sectional area of ​​the discharge hole 24 is smaller than that of the inlet hole 25. Within a certain range, a larger flow cross-sectional area of ​​the inlet hole 254 helps to improve the efficiency of replenishing the liquid matrix from the first storage chamber 11 to the second storage chamber 21 under the drive of the drive module 3, allowing the liquid level in the second storage chamber 21 to rise more quickly. However, within a certain range, if the area of ​​the discharge hole 24 is too large, it will cause the air pressure in the second storage chamber 21 to drop too quickly or the negative pressure to be too high. This will cause a large amount of external air to enter the second storage chamber 21 through the capillary channel in the atomizing core 222, resulting in a large number of bubbles in the second storage chamber 21 and affecting the replenishment of the liquid matrix from the first storage chamber 11 to the second storage chamber 21. Therefore, making the flow cross-sectional area of ​​the discharge hole 24 smaller than that of the liquid inlet hole 25 is beneficial to ensure that the amount of liquid matrix replenished in the second storage cavity 21 is greater than the amount of gas discharged during at least part of the operation of the drive module 3. This not only helps the first storage cavity 11 to replenish the liquid matrix to the second storage cavity 21 more quickly, but also prevents external air from entering the second storage cavity 21 through the atomizing core 22.

[0096] In some embodiments, the diameter of the inlet hole 25 is greater than or equal to 1 mm. The diameter of the hole is the shortest distance between its two opposite sides; for example, when the hole is rectangular, the diameter is the length of the shorter side of the rectangle. When the hole is circular, the distance between its two opposite sides is equal to the diameter of the circle, and the diameter of the hole is the diameter of the circle. Preferably, the diameter of the inlet hole 25 is approximately 1 mm.

[0097] In some embodiments, the diameter of the discharge hole 24 is less than 1 mm, for example, the diameter of the discharge hole 24 may be about 0.5 mm.

[0098] In some embodiments, reference may be made to Figure 1 and Figure 2 The drive module 3 includes a piston 31 and a pump body 33 having a pump chamber 332 inside. The piston 31 is configured to move relative to the pump body 33 between a first position and a second position, and during the movement from the second position to the first position, the pump chamber 332 draws gas into the second storage chamber 21 to reduce the gas pressure in the second storage chamber 21.

[0099] In some embodiments, reference may be made to Figure 1 and Figure 2 The pump body 33 has a flow guide port 331, and the drive module 3 also includes a first one-way valve 34. When the flow guide port 331 is opened, the pump chamber 332 is connected to the second storage chamber 21, so that the pump chamber 332 can draw gas into the second storage chamber 332.

[0100] Furthermore, the first one-way valve 34 is configured to maintain a sealed flow port 331 during the movement of the piston 31 from the first position to the second position, and to open the flow port 331 during the movement of the piston 31 from the second position to the first position.

[0101] In some embodiments, the drive module 3 further includes a flow channel 32, into which at least a portion of the fluid in the pump chamber 332 flows during the movement of the piston 31 from the first position to the second position.

[0102] In some embodiments, during the process of piston 31 moving from the first position to the second position, pump chamber 332 injects gas into the first storage chamber 21 to increase the gas pressure in the first storage chamber 11, thereby increasing the gas pressure in the first storage chamber 11.

[0103] In some embodiments, when the piston 31 is in the first position, reference can be made to Figure 1 and Figure 2 The flow channel 32 is isolated from the pump chamber 332, and the pump chamber 332 has a first remaining volume. The first one-way valve 34 is closed, which seals the flow port 331.

[0104] When the piston 31 is in the second position, the flow channel 32 is connected to the pump chamber 332, and the pump chamber 332 has a second remaining volume, which is smaller than the first remaining volume.

[0105] During the movement of piston 31 from the first position to the second position, the first one-way valve 34 keeps the flow port 331 sealed to prevent fluid in pump chamber 332 from flowing into second storage chamber 21.

[0106] Furthermore, during the movement of piston 31 from the first position to the second position, the remaining volume of pump chamber 332 is compressed (specifically, the remaining volume of pump chamber 332 can be reduced starting from the first remaining volume), resulting in a higher air pressure in pump chamber 332. This causes the first one-way valve 34 to remain sealed at the guide port 331, while the guide channel 32 is connected to pump chamber 332, so that at least a portion of the fluid in pump chamber 332 can be discharged into the guide channel 32.

[0107] During the movement of piston 31 from the second position to the first position, the first one-way valve 34 opens, allowing pump chamber 332 to connect with the second storage chamber 21 through guide port 331, and pump chamber 332 draws in at least part of the fluid or gas in the second storage chamber 21.

[0108] Furthermore, during the movement of piston 31 from the second position to the first position, the remaining volume of pump chamber 332 is expanded (specifically, the remaining volume of pump chamber 332 can be increased starting from the second remaining volume), causing the air pressure in pump chamber 332 to be lower than the air pressure in second storage chamber 21, thereby causing the fluid in second storage chamber 21 to open the first one-way valve 34 and flow into pump chamber 332.

[0109] By causing the piston 31 to reciprocate between the first position and the second position, at least a portion of the fluid in the second storage chamber 21 can first flow into the pump chamber 332 through the guide port 331, and then flow from the pump chamber 332 into the guide channel 32.

[0110] After at least a portion of the fluid in the second storage chamber 21 flows out of the second storage chamber 21, the gas pressure in the second storage chamber 21 becomes lower than the gas pressure in the first storage chamber 11. Consequently, the first storage chamber 11 can replenish the liquid matrix into the second storage chamber 21 at least based on this pressure difference. Specifically, when the gas pressure in the first storage chamber 11 is greater than the gas pressure in the second storage chamber 21, the second one-way valve 3a opens, allowing the liquid guiding channel 1a to be open, thereby enabling the first storage chamber 11 to replenish the liquid matrix into the second storage chamber 21.

[0111] In some embodiments, reference may be made to Figure 6 and Figure 7 The first one-way valve 34 includes a stationary part 341, an elastic part 342, and a moving part 343 for sealing the guide port 331. The moving part 343 is configured to open the guide port 331 during the movement of the piston 31 from the second position to the first position. The elastic part 342 connects the stationary part 341 and the moving part 343 so that the moving part 343 automatically resets to seal the guide port 331.

[0112] Furthermore, the stationary part 341, the elastic part 342, and the moving part 343 are integrally molded. Even further, the first one-way valve 34 is primarily made of silicone.

[0113] In some embodiments, reference may be made to Figure 6 and Figure 7 The stationary part 341 includes an annular wall, which is interference-fitted into the pump chamber 332 and disposed close to the circumferential wall of the pump chamber 332. The elastic part 342 connects the moving part 343 and the end of the annular wall. Multiple elastic parts 342 may be present. Furthermore, the elastic part 342 may be configured as a non-linearly extending strip structure.

[0114] In some embodiments, reference may be made to Figure 2 and Figure 6 The first one-way valve 34 includes a movable part 343 that is movable relative to the flow port 331. The movable part 343 is configured to move in the direction against gravity to open the flow port 331 when the air pressure in the pump chamber 332 is lower than the air pressure in the second storage chamber 21. The piston 31 is configured to automatically reset to seal the flow port 331 at least based on gravity.

[0115] Furthermore, the first one-way valve 34 also includes a gravity block 344 disposed on the moving part 343, the gravity block 344 and the moving part 343 being arranged along the same central axis.

[0116] In some embodiments, reference may be made to Figure 1 and Figure 2 The aerosol generating device 100 also includes a return channel 4a connecting the guide channel 32 and the first storage chamber 11. During the movement of the piston 31 from the first position to the second position, at least a portion of the fluid in the pump chamber 332 flows into the first storage chamber 11 through the guide channel 32 and the return channel 4a. In other words, at least a portion of the fluid drawn into the second storage chamber 21 by the pump chamber 332 can flow into the first storage chamber 11 through the guide channel 32 and the return channel 4a.

[0117] For example, during the movement of piston 31 from the first position to the second position, the guide channel 32 is connected to the pump chamber 332. At least part of the gas drawn into the second storage chamber 21 by the pump chamber 332 can flow into the first storage chamber 11 through the guide channel 32 and the return channel 4a. This helps to achieve a gas pressure balance between the first storage chamber 11 and the second storage chamber 21 after the drive module 3 stops working, so that the first storage chamber 11 stops replenishing the liquid matrix to the second storage chamber 21, thus preventing the first storage chamber 11 from continuously replenishing the liquid matrix to the second storage chamber 21 after the drive module 3 stops working.

[0118] For example, during the movement of piston 31 from the first position to the second position, the guide channel 32 is connected to the pump chamber 332. At least a portion of the liquid matrix overflowing or leaking from the second storage chamber 21 into or from the pump chamber 332 through the discharge channel 2a or discharge hole 24 can flow into the first storage chamber 11 through the guide channel 32 and the return channel 4a, and then be replenished to the second storage chamber 21 through the first storage chamber 11, thereby allowing the liquid matrix to circulate between the first storage chamber 11, the pump chamber 332, and the second storage chamber 21. Therefore, it is not necessary to precisely control the amount of liquid matrix replenished from the first storage chamber 11 to the second storage chamber 21 each time, and it is also possible to prevent the liquid matrix in the second storage chamber 21 from leaking out of the aerosol generating device 100 due to oversaturation. Furthermore, even when the drive module 3 operates continuously or for a long time, it is also possible to prevent the liquid matrix in the second storage chamber 21 from becoming oversaturated.

[0119] In some embodiments (not shown), the drive module includes an electric drive module, and the aerosol generating apparatus further includes a controller electrically connected to a battery to control the battery to provide electrical power to the electric drive module, thereby causing the piston to move between a first position and a second position.

[0120] In some embodiments, reference may be made to Figure 1 The drive module 3 also includes an operating element 35 linked to the piston 31. The operating element 35 is configured to be operable to drive the piston 31 from a first position to a second position. This allows the operating element 35 to be manually operated, thereby replenishing the liquid matrix from the first storage chamber 11 to the second storage chamber 21.

[0121] In some embodiments, reference may be made to Figure 9 The operating component 35 is provided with a first reflux hole 351 that connects the flow channel 32 and the first storage chamber 11. The first reflux hole 351 is configured to connect the first storage chamber 11 and the pump chamber 332 when the piston 31 is in the second position.

[0122] Furthermore, when the piston 31 is in the second position, the first return hole 351 can be connected to the pump chamber 332 through the guide channel 32.

[0123] Thus, the fluid in the pump chamber 332 enters the guide channel 32, then flows into the operating member 35, and then flows to the first storage chamber 11 through the first return hole 351.

[0124] In some embodiments, reference may be made to Figure 1 and Figure 2 The aerosol generating device 100 also includes a support 8, the atomizing module 2 and the driving module 3 are held on the same side of the support 8, the storage module 1 is disposed on the other side of the support 8, and the support 8 is provided with a second reflux hole that connects to the first storage cavity 11.

[0125] The drive module 3 also includes a return pipe 9 with an internal return channel 4a. One end of the return pipe 9 is connected to the operating component 35, and the other end is connected to the bracket 8. The return channel 4a connects the first return hole 351 and the second return hole.

[0126] Furthermore, the operating member 35 is provided with a third protrusion 352, at least a portion of the first reflux hole 351 is defined in the third protrusion 352, and one end of the reflux pipe 9 is fitted into the third protrusion 352, including one end of the reflux pipe 9 being fitted into at least a portion of the first reflux hole 351 in the third protrusion 352, or at least a portion of the third protrusion 352 being fitted into the reflux pipe 9 from the end of the reflux pipe 9.

[0127] The support 8 may be provided with a fourth protrusion, at least partially of the second reflux hole is defined in the fourth protrusion, and the other end of the reflux pipe 9 may be fitted into the fourth protrusion, including the other end of the reflux pipe 9 being fitted into at least part of the second reflux hole in the fourth protrusion, or including at least partially of the fourth protrusion being fitted into the reflux pipe 9 from the end of the reflux pipe 9.

[0128] In some embodiments, reference may be made to Figure 1 The drive module 3 also includes a reset member 36, which acts on the piston 31 or the operating member 35 to automatically reset the piston 31 from the second position to the first position. Of course, the reset member 36 can also provide a damped feel for the user to operate the operating member 35, and can also help keep the piston 31 in the first position.

[0129] Furthermore, you can refer to Figure 1 The reset element 36 is disposed between the operating element 35 and the pump body 33. Furthermore, the reset element 36 includes a spring that can be disposed around the periphery of the piston 31.

[0130] In some embodiments, reference may be made to Figure 1 and Figure 2 The drive module 3 also includes a seal 37 connected to the pump body 33. The piston 31 includes a first tubular body 311, which defines at least a portion of the flow channel 32. A first through hole 311 communicating with the flow channel is provided on the side wall of the first tubular body 311. When the piston 31 is in the first position, the first through hole 3111 is located in the seal 37 and sealed by the seal 37. When the piston 31 is in the second position, the first through hole 3111 is located in the pump chamber 332, thereby communicating with the flow channel 32.

[0131] In some embodiments, reference may be made to Figure 1 and Figure 2 The piston 31 includes a first stop portion 3121, and a second stop portion 371 is provided on the seal 37 or the pump body 33. The second stop portion 371 is located on the side of the first stop portion 3121 facing the pump chamber 332, and the second stop portion 371 is configured to be spaced apart from the first stop portion 3121 during the process of the piston 31 being in the first position, so that the piston 31 can move in the direction of the second position. During the process of the piston 31 being in the second position, the second stop portion 371 abuts against the first stop portion 3121 to prevent the piston 31 from continuing to move in the original direction of movement.

[0132] Furthermore, when the first through-hole 3111 is located in the pump chamber 332, the second stop 371 abuts against the first stop 3121 to prevent the piston 31 from continuing to move in the original direction of movement. Thus, during the piston 31's second position, at least a portion of the first through-hole 3111 is precisely located within the pump chamber 332. Preferably, when the piston 31 is in the second position or when the second stop 371 abuts against the first stop 3121, the first through-hole 3111 is precisely and completely located within the pump chamber 332. This reduces the stroke of the piston 31 between the first and second positions and also helps improve the efficiency of the pump chamber 332 in drawing at least a portion of the fluid into the second storage chamber 21.

[0133] In some embodiments, reference may be made to Figure 1 and Figure 2 The piston 31 includes a second tubular body 312, and a first tubular body 311 is held inside the second tubular body 312; the first stop portion 3121 includes the end of the second tubular body 312 disposed toward the pump chamber 332.

[0134] The first tubular body 311 and the second tubular body 312 can be connected to each other by assembly, for example, by riveting, so that at least a portion of the first tubular body 311 is disposed in the second tubular body 312. The first tubular body 311 and the second tubular body 312 can be integrally formed, for example, by insert injection molding, so that at least a portion of the first tubular body 311 is located in the second tubular body 312.

[0135] Preferably, the first tubular body 311 and the second tubular body 312 are sealed together to prevent fluid in the flow channel 32 from leaking between the first tubular body 311 and the second tubular body 312.

[0136] In some embodiments, the first tubular body 311 and / or the second tubular body 312 are connected to the operating member 35. Further, the operating member 35 also includes a fifth protrusion 353, which has a cavity 354 communicating with the first reflux hole 351. One end of the first tubular body 311 or the second tubular body 312 can be fitted into the fifth protrusion 353, including at least a portion of the cavity 354 within the fifth protrusion 353, or at least a portion of the fifth protrusion 353 fitting from the end of the first tubular body 311 or the second tubular body 312 into the first tubular body 311 or the second tubular body 312.

[0137] Preferably, the first tubular body 311 or the second tubular body 312 is sealed to the fifth protrusion 353 to prevent fluid in the flow channel 32 or the first return hole 351 from leaking between the first tubular body 311 or the second tubular body 312 and the fifth protrusion 353.

[0138] In such Figure 1 In the embodiment shown, the end of the second tubular body 312 facing away from the pump chamber 332 is at least partially disposed around the fifth protrusion 353.

[0139] In some embodiments, reference may be made to Figure 1 and Figure 2 The piston 31 also includes a third stop portion 3122, and the drive module 3 includes a fourth stop portion 381. The fourth stop portion 381 is located on the side of the third stop portion 3122 away from the pump chamber 332, and the fourth stop portion 381 is configured to be spaced apart from the third stop portion 3122 when the piston 31 is in the second position, and to abut against the third stop portion 3122 when the piston 31 is in the first position, so as to prevent the piston 31 from moving out of the seal 37 in the direction away from the pump chamber 332.

[0140] Furthermore, a third stop 3122 is provided on the second tubular body 312.

[0141] In such Figure 2 In the illustrated embodiment, the drive module 3 further includes a cover 38 connected to the pump body 33, and the cover 38 has a through hole. At least a portion of the piston 31 is located in the through hole, and the piston 31 can reciprocate along the central axis of the through hole. The cover 38 can support the reset member 36. The cover 38 can be used to push the seal 36 into the pump body 33 for retention. A fourth stop 381 can be provided on the cover 38.

[0142] In some embodiments, reference may be made to Figure 2 and Figure 4 The support 8 includes an annular retaining wall 81 with a retaining cavity inside. The pump body 33 is disposed in the retaining cavity, and a cover 38 is disposed on the pump body 33, so that the cover 38 and the pump body 33 form a whole that can be assembled together with the retaining wall. After assembly, the cover 38 is connected to the retaining wall 81. To reduce the resistance of installing the pump body 33 into the retaining cavity, the outer diameter of the pump body 33 can be smaller than the inner diameter of the retaining wall 81, so that there is a gap between the pump body 33 and the retaining wall 81 after the pump body 33 is located in the retaining cavity. A second through hole 811 can be provided on the retaining wall 81. The second through hole 811 connects the outside and the gap between the pump body 33 and the retaining wall 81, so that during the assembly of the whole including the pump body 33 and the cover 38 with the retaining wall 81, the gas in the retaining cavity can be discharged through the second through hole 811, thereby reducing the resistance of assembling the whole including the pump body 33 and the cover 38 with the retaining wall 81.

[0143] Please refer to Figure 1 and Figure 2 This application provides an aerosol generating apparatus 100, which includes:

[0144] Storage module 1 has a first storage cavity 11 for storing liquid matrix;

[0145] Atomizing module 2 includes a second storage chamber 21 for storing a liquid matrix and an atomizing core 22 for atomizing the liquid matrix to generate an aerosol, wherein a liquid guiding channel 1a is provided between the first storage chamber 11 and the second storage chamber 21; and

[0146] The drive module 3 is configured to provide power to transport the liquid matrix in the first storage chamber 11 to the second storage chamber 21 through the liquid guiding channel 1a. The drive module 3 has a return channel 4a between it and the first storage chamber 11, and a discharge channel 2a between it and the second storage chamber 21. The discharge channel 2a is connected to the return channel 4a through the drive module 3, so that the liquid matrix can circulate between the first storage chamber 11 and the second storage chamber 21 through the discharge channel 2a, the return channel 4a and the liquid guiding channel 1a.

[0147] Therefore, it is not necessary to precisely control the amount of liquid matrix replenished from the first storage chamber 11 to the second storage chamber 21, and it is also possible to prevent the liquid matrix in the second storage chamber 21 from leaking out of the aerosol generating device 100 due to oversaturation. Furthermore, even when the drive module 3 operates continuously or for extended periods, it is possible to prevent the liquid matrix in the second storage chamber 21 from becoming oversaturated. This helps reduce the production costs of the drive module 3 and the aerosol generating device 100, and facilitates manual operation of the actuator 35 to drive the first storage chamber 11 to replenish the liquid matrix to the second storage chamber 21.

[0148] It should be noted that the preferred embodiments of this application are given in the specification and drawings, but are not limited to the embodiments described in this specification. Furthermore, those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. An aerosol generating device, characterized in that... include; The storage module has a first storage chamber inside for storing the liquid matrix; An atomizing module includes a second storage chamber for storing a liquid matrix and an atomizing core for atomizing the liquid matrix to generate an aerosol, wherein a liquid guiding channel connecting the first storage chamber and the second storage chamber is provided. and The drive module is in airflow communication with the second storage cavity and is configured to extract gas from the second storage cavity, or in airflow communication with the first storage cavity and is configured to inject gas into the first storage cavity, so that the gas pressure in the second storage cavity is lower than the gas pressure in the first storage cavity, thereby promoting the introduction of the liquid matrix in the first storage cavity into the second storage cavity through the liquid guiding channel.

2. The aerosol generating apparatus according to claim 1, characterized in that, The drive module includes a user-operable air extraction mechanism, which is connected to the second storage cavity via a discharge channel. The air extraction mechanism extracts air from the second storage cavity through the discharge channel to reduce the air pressure.

3. The aerosol generating apparatus according to claim 2, characterized in that, A portion of the discharge channel passes through the first storage cavity.

4. The aerosol generating apparatus according to claim 1, characterized in that, The drive module includes a piston and a pump body with an internal pump chamber; The piston is configured to move relative to the pump body between a first position and a second position, and during the movement from the second position to the first position, the pump chamber draws gas into the second storage chamber to reduce the gas pressure in the second storage chamber.

5. The aerosol generating apparatus according to claim 4, characterized in that, The drive module includes a flow channel that maintains communication with the first storage cavity, and the pump chamber is configured to inject gas into the first storage cavity through the flow channel to increase the gas pressure in the first storage cavity during the process of the piston moving from the first position to the second position.

6. The aerosol generating apparatus according to claim 4, characterized in that, The pump body is provided with a flow guide port, and the drive module also includes a first one-way valve. When the flow guide port is opened, the pump chamber is connected to the second storage chamber. The first check valve is configured to keep the flow port sealed during the movement of the piston from the first position to the second position, and to open the flow port during the movement of the piston from the second position to the first position.

7. The aerosol generating apparatus according to claim 6, characterized in that, The first one-way valve includes a stationary portion, a resilient portion, and a movable portion for sealing the flow port. The movable portion is configured to open the flow port during the movement of the piston from the second position to the first position. The resilient portion connects the stationary portion and the movable portion, causing the movable portion to automatically return to a position sealing the flow port; or The first one-way valve includes a movable part that is movable relative to the flow port, the movable part being configured to move against gravity to open the flow port when the air pressure in the pump chamber is lower than the air pressure in the second storage chamber, and the piston being configured to automatically reset to seal the flow port at least based on gravity.

8. The aerosol generating apparatus according to claim 4, characterized in that, The drive module also includes an operating element that is linked to the piston. The operating element is configured to be operable to drive the piston to move from the first position to the second position.

9. The aerosol generating apparatus according to claim 8, characterized in that, The operating element is provided with a first reflux hole, which is configured to connect the first storage chamber and the pump chamber when the piston is in the second position.

10. The aerosol generating apparatus according to claim 9, characterized in that, It also includes a bracket, the atomizing module and the driving module are located on the same side of the bracket, the storage module is located on the other side of the bracket, and the bracket is provided with a second reflux hole that communicates with the first storage cavity; The drive module also includes a return pipe with an internal return channel. One end of the return pipe is connected to the operating component, and the other end is connected to the bracket. The return channel connects the first return hole and the second return hole.

11. The aerosol generating apparatus according to claim 8, characterized in that, The drive module further includes a reset component, which acts on the piston or the operating component to automatically reset the piston from the second position to the first position.

12. The aerosol generating apparatus according to claim 1, characterized in that, It also includes a suction nozzle, wherein the second storage cavity has a proximal end and a distal end disposed opposite to each other, and the suction nozzle is disposed near the proximal end of the second storage cavity; The atomizing module includes an outlet port and a liquid inlet port. The driving module is connected to the outlet port to extract gas from the second storage chamber through the outlet port. The first storage chamber is connected to the liquid inlet port to replenish the second storage chamber with liquid matrix through the liquid inlet port. The discharge port and / or the inlet port are located near the proximal end of the second storage cavity; and / or The discharge port and / or the liquid inlet port are located closer to the proximal end than the atomizing core.

13. The aerosol generating apparatus according to claim 12, characterized in that, The flow cross-sectional area of ​​the discharge port is smaller than the flow cross-sectional area of ​​the inlet port; and / or The diameter of the discharge hole is less than 1 mm; and / or The diameter of the liquid inlet hole is greater than or equal to 1 mm.

14. The aerosol generating apparatus according to claim 1, characterized in that, It also includes a discharge pipe with an internally defined discharge channel, the discharge pipe connecting the second storage cavity and the drive module, such that at least a portion of the fluid in the second storage cavity can enter the drive assembly, and at least a portion of the discharge pipe is generally U-shaped.

15. The aerosol generating apparatus according to claim 1, characterized in that, It also includes a second one-way valve disposed in the liquid channel, the second one-way valve being configured to prevent the liquid matrix in the second storage chamber from flowing to the first storage chamber.

16. The aerosol generating apparatus according to claim 15, characterized in that, It also includes a liquid guide tube that internally defines the liquid guide channel, and the liquid guide tube has a fluid inlet located in the first storage cavity to guide the liquid matrix in the first storage cavity into the liquid guide channel. The second one-way valve is disposed adjacent to the fluid inlet.

17. The aerosol generating apparatus according to claim 1, characterized in that, The atomizing module further includes a retaining tube surrounded by the second storage cavity and a liquid-absorbing medium disposed within the retaining tube. The retaining tube has a liquid guiding hole, and the atomizing core is disposed inside the liquid-absorbing medium. The liquid-absorbing medium is configured to absorb the liquid matrix in the second storage cavity through the liquid guiding hole and conduct at least a portion of the adsorbed liquid matrix to the atomizing core.

18. An aerosol generating device, characterized in that, include; The storage module has a first storage chamber inside for storing the liquid matrix; An atomizing module includes a second storage chamber for storing a liquid matrix and an atomizing core for atomizing the liquid matrix to generate an aerosol, wherein a liquid guiding channel is provided between the first storage chamber and the second storage chamber; and A drive module is configured to provide power to transport the liquid matrix in the first storage cavity to the second storage cavity through the liquid guiding channel, and the drive module has a return channel between the first storage cavity and the drive module, and a discharge channel between the drive module and the second storage cavity. The discharge channel is connected to the return channel through the drive module, so that the liquid matrix can circulate between the first storage cavity and the second storage cavity through the discharge channel, the return channel and the liquid guiding channel.

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