Aerosol-generating device

Abstract

The application relates to an aerosol generating device, comprising: an atomization assembly comprising a first tubular body and an atomization core arranged inside the first tubular body, the first tubular body being provided with a first through hole; a housing, the inside of the housing being provided with a first storage cavity arranged around the first tubular body, the first through hole being in fluid communication with the first storage cavity and the atomization core; a first flow guide hole and a second flow guide hole, the first flow guide hole and the second flow guide hole being arranged between the proximal end and the distal end of the housing, one of the first flow guide hole and the second flow guide hole being configured to guide fluid into the first storage cavity, and the other being configured to guide fluid in the first storage cavity out; and a second storage cavity, the second storage cavity being in communication with the first storage cavity and being adjacent to the proximal end; when the aerosol generating device is in a first posture, the second storage cavity provides an air cavity that is not occupied by liquid substrate; when the aerosol generating device is in a second posture, the second storage cavity receives part of the liquid substrate, so that at least part of the first through hole is exposed to the liquid level of the liquid substrate.

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 exemplary aerosol generating device exists, comprising an atomizing assembly having a first storage chamber and an atomizing core, and a storage assembly for replenishing the first storage chamber with a liquid matrix. The atomizing core is connected to the first storage chamber to absorb the liquid matrix. The first storage chamber of the atomizing assembly is provided with a first guide hole and a second guide hole having a height difference, and fluid channels are established between the storage assembly and the first guide hole and the second guide hole, respectively.

[0003] In some application scenarios, when the aerosol generating device is upright, the storage component can inject a liquid matrix into the first storage chamber through the fluid channel and the first guide hole, while the gas in the first storage chamber can be discharged to the storage component through the second guide hole. When the aerosol generating device is inverted, the storage component can introduce gas into the first storage chamber through the fluid channel and the first guide hole, while the liquid matrix in the first storage chamber can flow back to the storage component through the second guide hole.

[0004] However, when the aerosol generating device is inverted, there will still be residual liquid matrix in the fluid channel. Therefore, before introducing gas into the storage chamber through the fluid channel and the first guide hole, the residual liquid matrix in the fluid channel needs to flow into the first storage chamber first. If the first storage chamber is already full of liquid matrix, introducing liquid matrix into the first storage chamber will easily cause the liquid matrix to leak through the atomizing core. Utility Model Content

[0005] The purpose of this application is to provide an aerosol generating device that can prevent liquid matrix from leaking through the atomizing component.

[0006] At least one embodiment of this application provides an aerosol generating apparatus, and the aerosol generating apparatus includes;

[0007] The atomizing assembly includes a first tubular body and an atomizing core disposed inside the first tubular body for atomizing a liquid matrix to generate an aerosol, wherein a first through hole is provided on the side wall of the first tubular body.

[0008] A housing having a proximal end and a distal end, with a first storage cavity inside for storing a liquid matrix, the first storage cavity surrounding the first tubular body, and a first through hole fluidly communicating the first storage cavity and the atomizing core;

[0009] A base located at the distal end connects the first tubular body and the housing, the base defining a portion of the boundary of the first storage cavity and adjacent to the first through hole;

[0010] A first flow guide orifice and a second flow guide orifice, disposed between the proximal and distal ends of the housing, are configured such that one guides fluid into the first storage cavity, and the other guides fluid out of the first storage cavity; and

[0011] A second storage cavity is connected to the first storage cavity and is adjacent to the proximal end;

[0012] When the aerosol generating device is in the first position, the second storage cavity provides an air cavity that is not filled with liquid matrix; when the aerosol generating device is in the second position, the second storage cavity receives a portion of the liquid matrix, such that at least a portion of the first through hole in the first liquid storage cavity is exposed above the liquid surface of the liquid matrix.

[0013] As an example, the volume of the first storage cavity is greater than the volume of the second storage cavity; and / or

[0014] The volume of the second storage cavity is less than or equal to 0.8 ml; and / or

[0015] The volume of the first storage cavity is greater than or equal to 2 ml.

[0016] As an example, the inner wall of the housing includes a first inner wall for defining the circumferential boundary of the first storage cavity and a second inner wall for defining the circumferential boundary of the second storage cavity;

[0017] The cross-sectional area enclosed by the second inner wall is smaller than the cross-sectional area enclosed by the first inner wall.

[0018] As an example, the inner wall of the housing also includes a boundary wall that connects the first inner wall and the second inner wall;

[0019] The first flow guide hole and / or the second flow guide hole are opened corresponding to the first storage cavity, and the first flow guide hole and / or the second flow guide hole are disposed adjacent to the boundary wall.

[0020] As an example, when the aerosol generating device is in the first position, the first guide hole is used to introduce a liquid matrix into the first storage cavity, and the second guide hole is used to discharge gas from the first storage cavity;

[0021] The boundary wall is provided with a groove, which extends from the second inner wall to the first inner wall and communicates with the first guide hole.

[0022] As an example, the second storage cavity is located on the side of the first storage cavity away from the base, and the first flow guide hole and / or the second flow guide hole are formed between the first storage cavity and the second storage cavity.

[0023] As an example, the edge of the first through hole includes a first end, and the distance between the first end and the base is the largest in the edge of the first through hole;

[0024] The volume of the first storage cavity located between the first end and the base is less than or equal to the volume of the second storage cavity, so that when the aerosol generating device is in the second posture, the first through hole is completely outside the liquid matrix.

[0025] As an example, the edge of the first through hole includes a second end, and the distance between the second end and the base is minimal in the edge of the first through hole;

[0026] The volume of the first storage cavity located between the second end and the base is less than or equal to the volume of the second storage cavity, so that when the aerosol generating device is in the second posture, at least a portion of the first through hole is located outside the liquid matrix.

[0027] As an example, when the aerosol generating device is in a first posture and a second posture, the proximal and distal ends of the shell are inverted relative to each other in the direction of gravity.

[0028] As an example, a pump assembly and a storage assembly are also included, the storage assembly having a third storage chamber for storing a liquid matrix, and the pump assembly being configured to drive fluid to circulate in the first storage chamber and the third storage chamber;

[0029] When the aerosol generating device is in the first position, the first storage cavity is configured to introduce the liquid matrix in the third storage cavity through the first guide hole and to exhaust the internal gas through the second guide hole;

[0030] When the aerosol generating device is in the second position, the first storage cavity is configured to introduce gas from the third storage cavity through the first guide hole and to export the internal liquid matrix through the second guide hole.

[0031] The aerosol generating apparatus provided in the above embodiments includes a first storage chamber and a second storage chamber that are interconnected. The first storage chamber can supply a liquid matrix to the atomizing core through a first through-hole formed on the side wall of the first tubular body, so that the atomizing core can atomize and generate aerosol. A first guide hole and a second guide hole connecting the first storage chamber to the outside are disposed between the proximal end and the distal end of the housing. When the aerosol generating apparatus is in a first posture, the second storage chamber provides an air cavity that is not filled with liquid matrix. When the aerosol generating apparatus is in a second posture, at least a portion of the liquid matrix in the first storage chamber can be received by the second storage chamber, so that at least a portion of the liquid matrix in the first through-hole is exposed above the liquid surface of the liquid matrix. Therefore, when the liquid matrix or air pressure in the first storage chamber is increased, leakage of the liquid matrix through the first through-hole and the atomizing core can be prevented. Attached Figure Description

[0032] 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.

[0033] Figure 1 This is a schematic diagram of an aerosol generating apparatus provided in some embodiments of this application;

[0034] Figure 2 This is a partial schematic diagram of an aerosol generating apparatus provided in some embodiments of this application;

[0035] Figure 3 This is a partial schematic diagram from another perspective of the aerosol generating apparatus provided in some embodiments of this application;

[0036] Figure 4 This is a schematic diagram of fluid flow in the aerosol generating device provided in some embodiments of this application when it is in a first posture, wherein the dashed arrows indicate the flow direction of the gas and the solid arrows indicate the flow direction of the liquid matrix;

[0037] Figure 5 This is a schematic diagram of fluid flow in the second posture of the aerosol generating device provided in some embodiments of this application, wherein the dashed arrows indicate the flow direction of the gas and the solid arrows indicate the flow direction of the liquid matrix.

[0038] In the picture:

[0039] 100. Aerosol generating device;

[0040] 1. Shell; 11. First storage cavity; 12. First inner wall; 13. Boundary wall; 131. Groove; 14. Second inner wall; 15. First guide hole; 16. Second guide hole; 17. Second storage cavity; 2. Atomizing assembly; 21. Atomizing core; 211. First heating element; 212. Second heating element; 22. First tubular body; 221. First through hole; 23. Liquid guiding element; 24. Second tubular body; 3. Nozzle; 31. Air outlet; 4. Base; 41. Air inlet; 42. Electrode; 43. Magnetic component; 5. Power supply assembly; 6. Storage assembly; 61. Third storage cavity; 7. Pump assembly; 81. First channel; 82. Second channel; 9. Third tubular body; A. Liquid matrix. Detailed Implementation

[0041] 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.

[0042] The terms "first," "second," and "third" in this application are used 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.

[0043] 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.

[0044] 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.

[0045] Please refer to Figure 1 , Figure 2 This application provides an aerosol generating device 100, which includes a first storage chamber 11 for storing a liquid matrix and an atomizing component 2 for atomizing the liquid matrix to generate an aerosol.

[0046] The liquid matrix is ​​liquid at room temperature. In some embodiments, the liquid matrix may contain a liquid containing tobacco-containing substances with volatile tobacco aroma components. The liquid matrix may also contain a liquid containing non-tobacco substances. The liquid matrix may contain water, solvents, ethanol, plant extracts, fragrances, or flavoring agents, etc., and the fragrances may include, but are not limited to, areca nut extract, menthol, peppermint, spearmint oil, various fruit flavoring components, etc. Flavoring agents may contain ingredients that can provide the user with various fragrances or flavors.

[0047] In some embodiments, the atomizing assembly 2 includes an atomizing core 21, which includes a liquid-absorbing element and a heating element. The liquid-absorbing element is used to guide the liquid matrix to the heating element, thereby enabling at least a portion of the liquid matrix in the liquid-absorbing element to atomize and generate an aerosol under the heat released by the heating element.

[0048] The liquid-absorbing element 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.

[0049] In some embodiments, the aerosol generating apparatus 100 further includes a housing 1, with a first storage cavity 11 disposed inside the housing 1. Further, the inner wall of the housing 1 includes a first inner wall 12 for defining at least a partial circumferential boundary of the first storage cavity 11, thereby facilitating a reduction in the volume of the housing 1.

[0050] In some embodiments, the aerosol generating device 100 further includes an outlet 31 for discharging aerosols and an inlet 41 for guiding air to the atomizing core 21. Air can enter the atomizing assembly 2 through the inlet 41 and flow into the atomizing chamber, where it combines with volatile substances generated by the liquid matrix heated by the atomizing core 21 to form an aerosol. Finally, the aerosol is introduced into the aerosol generating device 100 through the outlet 31.

[0051] Preferably, the air inlet 41 and the air outlet 31 are arranged along the same central axis.

[0052] In some embodiments, the housing 1 has a proximal end and a distal end. The air inlet 41 may be located at the distal end of the housing 1, and the air outlet 31 may be located at the proximal end of the housing.

[0053] In some embodiments, reference may be made to Figure 2 and Figure 3 The atomizing component 2 also includes a first tubular body 22, an atomizing core 21 disposed inside the first tubular body 22, a first storage cavity 11 disposed around the first tubular body 22, and a first through hole 221 for connecting the first storage cavity 11 and the atomizing core is provided on the side wall of the first tubular body 22.

[0054] In some embodiments, reference may be made to Figure 1 The atomizing assembly 2 also includes a tubular liquid guiding element 23, which is disposed inside the first tubular body 22. The liquid guiding element 23 can absorb the liquid matrix in the first storage cavity 11 through the first through hole 221, thereby allowing a portion of the liquid matrix to be stored on the liquid guiding element 23. The atomizing core 21 is disposed inside the liquid guiding element 23. The liquid matrix in the first storage cavity 11 is transferred to the atomizing core 21 through the liquid guiding element 23. The liquid guiding element 23 can prevent the liquid matrix in the first storage cavity 11 from flowing directly into the atomizing core 21, thereby preventing leakage of the liquid matrix in the first storage cavity 11 through the atomizing core 21. Specifically, the liquid matrix in the first storage cavity 11 is transferred to the liquid suction element through the liquid guiding element 23, and then transferred to the heating element by the liquid suction element, and then atomized by the heating element.

[0055] The liquid-conducting element 23 has a large number of pores, enabling it to adsorb a large amount of liquid matrix. The liquid-conducting element 23 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.

[0056] Furthermore, the atomizing assembly 2 also includes a second tubular body 24, which is disposed inside the first tubular body 22, and a liquid guiding element 23 is disposed between the first tubular body 22 and the second tubular body 24. The atomizing core 21 is disposed inside the second tubular body 24. A second through hole is provided on the side wall of the second tubular body 24, and the atomizing core 21 is connected to the liquid guiding element 23 through the second through hole.

[0057] In some embodiments, reference may be made to Figure 2 and Figure 3The aerosol generating device 100 also includes a base 4, which is connected to the housing 1 and defines a portion of the boundary of the first storage chamber 11. Furthermore, the atomizing assembly 2 is connected to the base 4. Even further, a sealed connection is formed between the end of the first tubular body 22 and the base 4.

[0058] In some embodiments, reference may be made to Figure 4 The aerosol generating device 100 also includes an electrode 42 electrically connected to the atomizing core 21. The atomizing core 21 is configured to be electrically connected to the power supply assembly 5 via the electrode 42, thereby obtaining electrical power for atomizing the liquid matrix. Furthermore, the electrode 42 is disposed on the base 4, and a portion of the electrode 42 is exposed to facilitate establishing an electrical connection with the power supply assembly 5.

[0059] In some embodiments, reference may be made to Figure 4 The aerosol generating device 100 also includes a magnetic element 43. When the aerosol generating device 100 is connected to the power supply assembly 1, or when an electrical connection is established between the electrode 42 and the power supply assembly 5, the magnetic element 43 is magnetically attracted to the power supply assembly 5 to ensure a stable connection between the aerosol generating device 100 and the power supply assembly 5, or to ensure a stable electrical connection between the electrode 42 and the power supply assembly 5. Further, the magnetic element 43 and the electrode 42 are located on the same side of the aerosol generating device 100. Alternatively, the magnetic element 43 is disposed on the base 4.

[0060] In some embodiments, reference may be made to Figure 1 The aerosol generating device 100 also includes a mouthpiece 3 that can be held in the mouth by a user, with an air outlet 31 disposed on the mouthpiece 3. The mouthpiece 3 can be attached to the proximal end of the housing 1. The mouthpiece 3 can be integrally formed with the housing 1. The mouthpiece 3 can be a component of the housing 1.

[0061] In some embodiments, reference may be made to Figure 1 The aerosol generating device 100 also includes a first guide hole 15 and a second guide hole 16, wherein one of the first guide hole 15 and the second guide hole 16 is configured to introduce fluid into the first storage cavity 11, and the other to discharge fluid from the first storage cavity 11. It should be noted that the fluid is a flowable substance, and typical fluids include gases and liquids.

[0062] In some embodiments, reference may be made to Figure 1 The aerosol generating device 100 also includes a storage component 6, which has a third storage chamber 61 for storing a liquid matrix. Fluid can circulate in the first storage chamber 11 and the third storage chamber 61 through the first guide hole 15 and the second guide hole 16.

[0063] As an example, you can refer to Figure 4When the aerosol generating device 100 is in the first posture, at least a portion of the liquid matrix in the third storage chamber 61 can be introduced into the first storage chamber 11 through the first guide hole 15 to increase the liquid matrix storage in the first storage chamber 11. At least a portion of the gas in the first storage chamber 11 can be guided into the third storage chamber 61 through the second guide hole 16 to maintain the gas pressure in the third storage chamber 61 and prevent the gas pressure in the third storage chamber 61 from dropping rapidly due to the reduction of liquid matrix.

[0064] You can refer to Figure 5 When the aerosol generating device 100 is in the second position, at least a portion of the liquid matrix in the first storage chamber 11 can be introduced into the third storage chamber 61 through the second guide hole 16. This allows for a reduction in the amount of liquid matrix in the first storage chamber 11 when the aerosol generating device 100 is not needed, such as during air travel, to prevent leakage and to prevent air entering through the atomizing core 21 from oxidizing the liquid matrix and causing it to deteriorate. Furthermore, when the aerosol generating device 100 is in the second position, at least a portion of the gas in the third storage chamber 61 can be guided into the first storage chamber 11 through the first guide hole 15 to maintain the air pressure in both the first and third storage chambers 61. This prevents a rapid increase in air pressure in the third storage chamber 61 due to an increase in liquid matrix, and prevents a rapid decrease in air pressure in the first storage chamber 11 due to a decrease in liquid matrix, thus preventing the atomizing core 21 from drawing in air from the outside.

[0065] In some embodiments, when the aerosol generating device 100 is in a first posture, the nozzle 3 of the aerosol generating device 100 is vertically or tilted away from the ground to facilitate the user's inhalation. When the aerosol generating device 100 is in a second posture, the nozzle 3 is vertically or tilted towards the ground.

[0066] In some embodiments, when the aerosol generating device 100 is in a first posture and a second posture, the proximal and distal ends of the housing 1 are inverted relative to each other in the direction of gravity. Thus, when the aerosol generating device 100 is in the first posture, the liquid matrix can automatically converge towards the distal end of the housing 1 based on gravity, and when the aerosol generating device 100 is in the second posture, the liquid matrix can automatically converge towards the proximal end of the housing 1 based on gravity.

[0067] In some embodiments, the atomizing core 21 is configured to operate when the aerosol generating device 100 is in a first posture, thereby atomizing the liquid matrix to generate aerosol, and not to operate when the aerosol generating device 100 is in a second posture.

[0068] In some embodiments, reference may be made to Figure 1The aerosol generating device 100 also includes a pump assembly 7, which drives the fluid to circulate between the first storage chamber 11 and the third storage chamber 61.

[0069] Furthermore, the pump assembly 7 connects the aerosol generating device 100 and the storage assembly 6. When the aerosol generating device 100 is in the first position, the third storage chamber 61 is configured to inject a liquid matrix into the first storage chamber 11 through the first guide hole 15 based on the pressure difference between the third storage chamber 100 and the first storage chamber 11. The pump assembly 7 is configured to drive a pressure difference to be formed between the first storage chamber 11 and the second storage chamber 12.

[0070] For example, you can refer to Figure 4 When the aerosol generating device 100 is in its first position, the pump assembly 7 can draw gas from the first storage chamber 11 through the second guide hole 16 to reduce the gas pressure in the first storage chamber 11, thereby allowing the liquid matrix A in the third storage chamber 61 to automatically flow into the first storage chamber 11 through the first guide hole 15. More specifically, the aerosol generating device 100 includes a first channel 81 connecting the first guide hole 15 and the third storage chamber 61. When the gas pressure in the first storage chamber 11 is lower than the gas pressure in the third storage chamber 61, the liquid matrix A in the third storage chamber 61 can automatically flow into the first storage chamber 11 through the first channel 81 and the first guide hole 15. Further, a second channel 82 connecting the pump assembly 7 and the storage assembly 6 is provided, allowing the pump assembly 7 to introduce at least a portion of the gas drawn from the first storage chamber 11 into the third storage chamber 61 through the second channel 82.

[0071] You can refer to Figure 5 When the aerosol generating device 100 is in the second posture, the pump assembly 7 draws liquid matrix A from the first storage chamber 11 through the second guide hole 16 and introduces at least a portion of the drawn liquid matrix A into the third storage chamber 61 through the second channel 82. The liquid matrix A in the first storage chamber 11 decreases, thereby reducing the gas pressure, and the liquid matrix A in the third storage chamber 61 increases, thereby increasing the gas pressure. The gas in the third storage chamber 61 then automatically flows into the first storage chamber 11 through the first channel 81 and the first guide hole 15.

[0072] Alternatively, for example, when the aerosol generating device 100 is in the first position, the pump assembly 7 is configured to inject gas into the third storage chamber 61 through the second channel 82 to increase the gas pressure in the third storage chamber 61, so that the liquid matrix A in the third storage chamber 61 can automatically flow into the first storage chamber 11 through the first guide hole 15. More specifically, when the increase in liquid matrix A in the first storage chamber 11 leads to an increase in gas pressure, the first storage chamber 11 can discharge gas to the pump assembly 7 through the second guide hole 16 to depressurize the first storage chamber 11, thereby preventing the liquid matrix from leaking through the atomizing core 21. At the same time, the pump assembly 7 can introduce at least a portion of the gas from the first storage chamber 11 into the third storage chamber 61 to increase the gas pressure in the third storage chamber 61. In other embodiments, while the pump assembly 7 injects gas into the third storage chamber 61 through the second channel 82, the pump assembly 7 can also extract gas from the first storage chamber 11 through the second guide hole 16, so that the liquid matrix in the third storage chamber 61 can flow into the first storage chamber 11 through the first guide hole 15.

[0073] In some embodiments, the first channel 81 is used to guide the liquid matrix in the third storage cavity 61 to the first storage cavity 11 when the aerosol generating device 100 is in a first posture, and to guide the gas in the third storage cavity 61 to the first storage cavity 11 when the aerosol generating device 100 is in a second posture. Therefore, when the aerosol generating device 100 is in the second posture, there may be liquid matrix retention in the first channel 81, so it is necessary to first allow the liquid matrix retained in the first channel 81 to flow into the first storage cavity 11 before the gas in the third storage cavity 61 can flow into the first storage cavity 11.

[0074] Therefore, when the aerosol generating device 100 is changed from the first posture to the second posture, if the first storage cavity 11 is already filled with liquid matrix or the first through hole 221 is completely submerged by liquid matrix, the liquid matrix remaining in the first channel 81 may flow into the first storage cavity 11, which may cause the pressure in the first storage cavity 11 to be too high, thereby forcing part of the liquid matrix in the first storage cavity 11 to leak through the first through hole 221 and through the atomizing core 21.

[0075] In some embodiments, since the aerosol generating device 100 is typically in a first position when in use, and the density of the liquid matrix is ​​greater than that of the gas, in order to more easily introduce the liquid matrix into the first storage cavity 11 through the first guide hole 15, a scheme in which the flow area of ​​the first guide hole 15 is greater than that of the second guide hole 16 can be adopted, for example, the aperture of the first guide hole 15 is greater than the aperture of the second guide hole 16.

[0076] However, when the aerosol generating device 100 is in the second posture, the first guide hole 15 is used to introduce external gas (such as the third storage chamber 61) into the first storage chamber 11, and the second guide hole 16 is used to export the liquid matrix in the first storage chamber 11. Since the flow area of ​​the first guide hole 15 is larger than that of the second guide hole 16, the decrease in the liquid matrix in the first storage chamber 11 within the same time period is less than the increase in the gas in the first storage chamber 11, which in turn leads to an increase in the gas pressure in the first storage chamber 11. If the liquid matrix in the first storage chamber 11 completely submerges the first through hole 221 at this time, even if no liquid matrix remains in the first channel 81 enters the first storage chamber 11, the liquid matrix in the first storage chamber 11 will leak through the first through hole 221 and the atomizing core 21.

[0077] To prevent leakage of the liquid matrix from the first storage cavity 11 through the atomizing core 21 when the aerosol generating device 100 is in the second posture, in some embodiments of this application, the aerosol generating device 100 further includes a second storage cavity 17, which is connected to the first storage cavity 11. When the aerosol generating device 100 is in the first posture, the second storage cavity 17 is configured to provide an air cavity not filled with the liquid matrix, so that the second storage cavity 17 retains the ability to receive the liquid matrix in the first storage cavity 11. When the aerosol generating device 100 is in the second posture, at least a portion of the liquid matrix in the first storage cavity 11 can flow into the second storage cavity 17 and be received by the second storage cavity 17, so that at least a portion of the first through hole 221 is exposed above the liquid surface of the liquid matrix. Thus, the gas in the first storage cavity 11 can flow out through the first through hole 221 and through the atomizing core 21, thereby depressurizing the first storage cavity 11 and preventing leakage of the liquid matrix through the first through hole 221 and the atomizing core 21.

[0078] In some embodiments, the first flow guide hole 15 and the second flow guide hole 16 are located between the proximal and distal ends of the housing 1. This includes three scenarios: 1. The first flow guide hole 15 and / or the second flow guide hole 16 are located at the proximal end of the housing 1; 2. The first flow guide hole 15 and / or the second flow guide hole 16 are located at the distal end of the housing 1; or 3. The first flow guide hole 15 and / or the second flow guide hole 16 are located at a position between the proximal and distal ends of the housing 1, other than the proximal and distal ends of the housing 1.

[0079] Furthermore, the first storage cavity 11 and the second storage cavity 17 are located between the air outlet 31 and the base 4. The base 4 defines the distal boundary of the first storage cavity 11. The first guide hole 15 and the second guide hole 16 are located between the base 4 and the second storage cavity 17. Even further, the second storage cavity 17 is located between the air outlet 31 and the first guide hole 15 and the second guide hole 16.

[0080] In some embodiments, the first flow guide hole 15 and / or the second flow guide hole 16 are formed between the first storage cavity 11 and the second storage cavity 17.

[0081] Typically, when the aerosol generating device 100 includes a storage component 6 or a pump component 7, the first guide hole 15 and the second guide hole 16 are normally open. When the aerosol generating device 100 is in the first posture, if the liquid matrix immerses the first guide hole 15 and the second guide hole 16, the liquid matrix will flow out through the first guide hole 15 and the second guide hole 16. Thus, the liquid matrix cannot completely immerse the first guide hole 15 and the second guide hole 16 inside the housing 1. Consequently, the first guide hole 15 and the second guide hole 16 can prevent the second storage cavity 17 from being filled with the liquid matrix, so that the second storage 17 can provide an air cavity that is not filled with the liquid matrix. Then, when the aerosol generating device 100 is in the second posture, the liquid matrix occupies at least a portion of the air cavity, so that at least a portion of the first through hole 221 can be exposed above the liquid surface of the liquid matrix. Thus, the gas in the first storage cavity 11 can pass through the first through hole 221 and then be discharged through the atomizing core 21 to depressurize the first storage cavity 11.

[0082] In some embodiments, reference may be made to Figure 3 The inner wall of the housing 1 includes a boundary wall 13 facing the base 4. A first flow guide hole 15 and a second flow guide hole 16 are located between the boundary wall 13 and the base 4. The boundary wall 13 defines at least a portion of the proximal boundary of the first storage cavity 11. The boundary wall 13 extends to connect with the first inner wall 12 of the housing 1. The boundary wall 13 may be substantially perpendicular to the first inner wall 12.

[0083] Preferably, one end of the first flow guide hole 15 and / or the second flow guide hole 16 is located on the first inner wall 12 of the housing 1, and the first flow guide hole 15 and / or the second flow guide hole 16 are disposed adjacent to the boundary wall 13. Further, the edges of the first flow guide hole 15 and / or the second flow guide hole 16 may be disposed close to the boundary wall 13, or a portion of the edges of the first flow guide hole 15 and / or the second flow guide hole 16 may be defined by the boundary wall 13. It is understood that the greater the distance between the boundary wall 13 and the base 4, the larger the volume of the first storage cavity 11. The adjacent placement of the first flow guide hole 15 and the second flow guide hole 16 to the boundary wall 13 helps to increase the maximum storage capacity of the liquid matrix in the first storage cavity 11.

[0084] In some embodiments, a groove 131 is provided on the boundary wall 13, the groove 131 extends to the first inner wall 12 and communicates with the first guide hole 15. The groove 131 can disrupt the surface tension of the liquid matrix, thereby preventing the formation of a liquid film that can seal the first guide hole 15 at the port of the first guide hole 15, so that the liquid matrix can be introduced into the first storage cavity 11 through the first guide hole 15.

[0085] In other embodiments, the boundary wall 13 is provided with other grooves that extend to the first inner wall 12 and communicate with the second guide hole 16.

[0086] In some embodiments, the volume of the first storage cavity 11 is greater than the volume of the second storage cavity 17. It is understood that the greater the difference between the volumes of the first storage cavity 11 and the second storage cavity 17, the more liquid matrix remains in the first storage cavity 11 when the aerosol generating device 100 is in the second posture, and consequently, more liquid matrix can be discharged through the second guide hole 16. As an example, the volume of the first storage cavity 11 is greater than or equal to 2 ml. As an example, the volume of the second storage cavity 17 is less than or equal to 0.8 ml.

[0087] In some embodiments, the inner wall of the housing 1 further includes a second inner wall 14 for defining the circumferential boundary of the second storage cavity 17, wherein the cross-sectional area enclosed by the second inner wall 14 is smaller than the cross-sectional area enclosed by the first inner wall 13.

[0088] As an example, at least a portion of the first tubular body 22 is surrounded by the second inner wall 14, such that the entrance to the second storage cavity 17 is located between the first tubular body 22 and the second inner wall 14, or a portion of the boundary of the entrance to the second storage cavity 17 is defined by a portion of the outer surface of the first tubular body 22 and a portion of the second inner wall 14. Preferably, the minimum distance between the second inner wall 14 and the first tubular body 22, or the minimum width D1 of the entrance to the second storage cavity 17, is between 0.5mm and 1.5mm, i.e., D1 satisfies: 0.5mm ≤ D1 ≤ 1.5mm, for example, D1 can be approximately 1mm. Understandably, a larger D1 facilitates the flow of liquid matrix from the first storage chamber 11 into the second storage chamber 17 when the aerosol generating device 100 is in the second position. This is beneficial for preventing leakage of the liquid matrix through the atomizing core 21. Simultaneously, when the aerosol generating device 100 is in the first position, it also facilitates the flow of liquid matrix from the second storage chamber 17 into the first storage chamber 11, preventing some liquid matrix from being locked in the second storage chamber 17, thus promoting full utilization of the liquid matrix and preventing waste. However, an excessively large D1 is detrimental to reducing the volume of the second storage chamber 17 or the size of the housing 1.

[0089] The minimum distance D2 between the first inner wall 12 and the first tubular body 22 can be between 1.5mm and 3.3mm, that is, D2 can satisfy: 1.5mm≤D2≤3.2mm, for example, D2 can be approximately 2.4mm. In other embodiments, D1 can be equal to D2, or the cross-sectional area enclosed by the second inner wall 14 can be equal to the cross-sectional area enclosed by the first inner wall 12.

[0090] In some embodiments, the aerosol generating apparatus 100 includes a third tubular body 9 communicating with an outlet 31 and extending toward a first storage cavity 11, a first tubular body 22 connected to the third tubular body 9, a second inner wall 14 surrounding the periphery of the third tubular body 9, and at least a portion of the second storage cavity 17 located between the second inner wall 14 and the third tubular body 9.

[0091] In some embodiments, the boundary wall 13 connects the first inner wall 12 and the second inner wall 14. Further, the groove 131 extends from the second inner wall 14 to the first inner wall 12. The boundary wall 13 may be substantially perpendicular to the second inner wall 14.

[0092] In some embodiments, the depth of the second storage cavity 17 is less than the depth of the first storage cavity 11. The distance between the boundary wall 13 and the base 4 can be the depth of the first storage cavity 11. The depth of the second storage cavity 17 can be between 5mm and 10mm, for example, the depth of the second storage cavity 17 can be approximately 7mm. The depth of the first storage cavity 11 can be between 9mm and 15mm, for example, the depth of the first storage cavity 11 can be approximately 11mm.

[0093] In some embodiments, the second storage cavity 17 is located on the side of the first storage cavity 11 away from the base 4, and the first through hole 221 is located closer to the base 4 than the second storage cavity 17. The closer the first through hole 221 is to the base 4, the more advantageous it is to make full use of the liquid matrix in the first storage cavity 11 when the aerosol generating device 100 is in the first posture.

[0094] As an example, the edge of the first through-hole 221 includes a second end 2211, and the distance between the second end 2211 and the base 4 is minimal. The volume of the first storage cavity 11 located between the second end 2211 and the base 4 is less than or equal to the volume of the second storage cavity 17, so that when the aerosol generating device 100 is in the second posture, at least a portion of the first through-hole 221 is exposed to the liquid surface of the liquid matrix. Specifically, when the aerosol generating device 100 is in the second posture, at least the second end 2211 of the first through-hole 221 is exposed to the liquid surface of the liquid matrix, or at least the second end 2211 is not submerged in the liquid matrix.

[0095] Furthermore, one can refer to Figure 2 and Figure 3 The edge of the first through hole 221 is adjacent to the base 4, that is, the distance between the second end 2211 and the base 4 is less than 2mm. Preferably, the distance between the second end 2211 and the base 4 is about 0mm.

[0096] As an example, the edge of the first through hole 221 includes a first end 2212, and the distance D3 between the first end 2212 and the base 4 is the largest in the edge of the first through hole 221; the volume of the first storage cavity 11 located between the first end 2212 and the base 4 is less than or equal to the volume of the second storage cavity 17, so that when the aerosol generating device 100 is in the second posture, the first through hole 221 is completely exposed to the liquid surface of the liquid matrix.

[0097] In some embodiments, reference may be made to Figure 3 The atomizing core 21 includes a first heating element 211 and a second heating element 212. The first heating element 211 and the second heating element 212 are arranged along the axial direction of the first tubular body 22. The first through hole 221 is set at the position between the first heating element 211 and the second heating element 212.

[0098] In some embodiments, reference may be made to Figure 3 The first through hole 221 is set at the middle position of the atomizing core 21.

[0099] It should be noted that the preferred embodiments of this application are given in the specification and accompanying 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 atomizing assembly includes a first tubular body and an atomizing core disposed inside the first tubular body for atomizing a liquid matrix to generate an aerosol, wherein a first through hole is provided on the side wall of the first tubular body. A housing having a proximal end and a distal end, with a first storage cavity inside for storing a liquid matrix, the first storage cavity surrounding the first tubular body, and a first through hole fluidly communicating the first storage cavity and the atomizing core; A base located at the distal end connects the first tubular body and the housing, the base defining a portion of the boundary of the first storage cavity and adjacent to the first through hole; The first and second flow guide holes are disposed between the proximal and distal ends of the housing and are configured such that one of them introduces fluid into the first storage cavity and the other of it discharges fluid from the first storage cavity. and A second storage cavity is connected to the first storage cavity and is adjacent to the proximal end; When the aerosol generating device is in the first posture, the second storage cavity provides an air cavity that is not filled with liquid matrix; When the aerosol generating device is in the second posture, the second storage cavity receives a portion of the liquid matrix, such that at least a portion of the first through hole in the first liquid storage cavity is exposed above the liquid surface of the liquid matrix.

2. The aerosol generating apparatus according to claim 1, characterized in that, The volume of the first storage cavity is greater than the volume of the second storage cavity; and / or The volume of the second storage cavity is less than or equal to 0.8 ml; and / or The volume of the first storage cavity is greater than or equal to 2 ml.

3. The aerosol generating apparatus according to claim 1, characterized in that, The inner wall of the housing includes a first inner wall for defining the circumferential boundary of the first storage cavity and a second inner wall for defining the circumferential boundary of the second storage cavity; The cross-sectional area enclosed by the second inner wall is smaller than the cross-sectional area enclosed by the first inner wall.

4. The aerosol generating apparatus according to claim 3, characterized in that, The inner wall of the shell also includes a boundary wall, which connects the first inner wall and the second inner wall; The first flow guide hole and / or the second flow guide hole are opened corresponding to the first storage cavity, and the first flow guide hole and / or the second flow guide hole are disposed adjacent to the boundary wall.

5. The aerosol generating apparatus according to claim 4, characterized in that, When the aerosol generating device is in the first posture, the first guide hole is used to introduce a liquid matrix into the first storage cavity, and the second guide hole is used to discharge the gas in the first storage cavity; The boundary wall is provided with a groove, which extends from the second inner wall to the first inner wall and communicates with the first guide hole.

6. The aerosol generating apparatus according to claim 1, characterized in that, The second storage cavity is located on the side of the first storage cavity away from the base, and the first flow guide hole and / or the second flow guide hole are formed between the first storage cavity and the second storage cavity.

7. The aerosol generating apparatus according to claim 1, characterized in that, The edge of the first through hole includes a first end, and the distance between the first end and the base is the largest in the edge of the first through hole; The volume of the first storage cavity located between the first end and the base is less than or equal to the volume of the second storage cavity, so that when the aerosol generating device is in the second posture, the first through hole is completely outside the liquid matrix.

8. The aerosol generating apparatus according to claim 1, characterized in that, The edge of the first through hole includes a second end, and the distance between the second end and the base is the smallest in the edge of the first through hole; The volume of the first storage cavity located between the second end and the base is less than or equal to the volume of the second storage cavity, so that when the aerosol generating device is in the second posture, at least a portion of the first through hole is located outside the liquid matrix.

9. The aerosol generating apparatus according to any one of claims 1 to 8, characterized in that, When the aerosol generating device is in the first and second postures, the proximal and distal ends of the shell are inverted relative to each other in the direction of gravity.

10. The aerosol generating apparatus according to any one of claims 1-9, characterized in that, It also includes a pump assembly and a storage assembly, the storage assembly having a third storage chamber for storing a liquid matrix, and the pump assembly being configured to drive fluid to circulate between the first storage chamber and the third storage chamber; When the aerosol generating device is in the first position, the first storage cavity is configured to introduce the liquid matrix in the third storage cavity through the first guide hole and to exhaust the internal gas through the second guide hole; When the aerosol generating device is in the second position, the first storage cavity is configured to introduce gas from the third storage cavity through the first guide hole and to export the internal liquid matrix through the second guide hole.

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