Aerosol generating device

Abstract

The utility model relates to the technical field of aerosol generation, in particular to an aerosol generating device which comprises a shell assembly, a heating assembly, a collecting assembly and an air inlet assembly, the heating assembly, the collecting assembly and the air inlet assembly are arranged in the shell assembly, an air inlet is formed in the shell assembly, a heating cavity is formed in the heating assembly, and the collecting assembly is arranged in the heating cavity. The collecting assembly is provided with a collecting cavity communicated with the heating cavity, the air inlet assembly comprises a first air inlet pipe and at least one second air inlet pipe, the first air inlet pipe is provided with an open end and a closed end, the open end is communicated with the air inlet, the closed end is arranged in the collecting cavity, and the at least one second air inlet pipe is arranged on the side wall of the closed end. The collecting cavity communicates with the first air inlet pipe through a second air inlet pipe. Due to the arrangement of the second air inlet pipe, the circulation path of the condensate in the collecting cavity can be changed, the phenomenon that the condensate enters the air inlet assembly is effectively weakened, the condensate is prevented from entering the first air inlet pipe and blocking the first air inlet pipe, and the suction experience of a user is improved.

Description

Technical Field

[0001] This application relates to the field of aerosol generation technology, and more specifically to an aerosol generation apparatus. Background Technology

[0002] The aerosol generating device (hereinafter referred to as the "generating device") utilizes the thermal effect of electronic heating elements to bake and heat the aerosol-generating product, enabling it to produce volatile substances such as aerosols without combustion. In related technologies, to reduce the impact of condensate on the aerosol's taste and prevent damage to the generating device, a condensate recovery mechanism is installed within the generating device. This mechanism is located between the air inlet structure and the heating chamber, both guiding airflow and recovering condensate flowing back into the heating chamber. Because the traditional air inlet structure connects to the condensate recovery mechanism via an outlet, condensate can easily enter the air inlet structure along the outlet and accumulate, affecting the quantity and quality of aerosol generation during subsequent use, thus impacting the user's inhalation experience. Utility Model Content

[0003] This application provides an aerosol generating device that can prevent condensate from flowing back into the air intake assembly, thereby improving the user's suction experience.

[0004] This application provides an aerosol generating apparatus, comprising:

[0005] A housing assembly having an air inlet that communicates with the outside atmosphere;

[0006] A heating assembly is disposed within the housing assembly; the heating assembly has a heating chamber for accommodating the aerosol-generated product;

[0007] A collection assembly, disposed within the housing assembly, includes a collection chamber communicating with the heating chamber for collecting condensed and recirculated aerosols within the heating chamber; and...

[0008] An air intake assembly is disposed within the housing assembly; the air intake assembly includes a first air intake pipe and at least one second air intake pipe, the first air intake pipe having an open end and a closed end, the open end communicating with the air inlet, the closed end being disposed within the collection chamber, and at least one second air intake pipe being disposed on the side wall of the closed end, the collection chamber communicating with the first air intake pipe through the second air intake pipe.

[0009] In some alternative embodiments, the first intake pipe and the second intake pipe are perpendicular and intersect.

[0010] In some alternative embodiments, the axes of the first intake pipe and the second intake pipe are both straight lines.

[0011] In some optional embodiments, the total radial cross-sectional area of ​​at least one second intake pipe is in the range of 1.5m². 2 -3m 2 .

[0012] In some alternative embodiments, the end of the second air inlet pipe is spaced apart from the inner wall of the collection chamber.

[0013] In some alternative embodiments, the extension length of the second air intake pipe is 1.2mm-3.5mm.

[0014] In some alternative embodiments, at least two second air intake pipes are provided, and the at least two second air intake pipes are arranged circumferentially around the first air intake pipe.

[0015] In some optional embodiments, the collection assembly includes a collection chamber with a collection cavity inside, and both ends of the collection chamber are open, one of the openings communicating with the heating cavity, and the other opening for insertion of the air intake assembly; the air intake assembly also includes a sealing member disposed on the outer wall of the first air intake pipe, the sealing member and the second air intake pipe being spaced apart along the axial direction of the first air intake pipe, the sealing member being used to seal the gap between the opening of the first air intake pipe and the collection chamber.

[0016] In some optional embodiments, the heating assembly includes a support and a base, the base being disposed at one end of the support near the air inlet, and at least a portion of the structure of the collecting assembly being inserted into the base, the base having an airflow channel for connecting the heating chamber and the collecting chamber.

[0017] In some optional embodiments, the heating component, the collecting component, and the air intake component are coaxially arranged along a first direction; the aerosol generating device further includes a power supply component, which is electrically connected to the heating component and is used to supply power to the heating component; the power supply component and the heating component are arranged side by side along a second direction, which is perpendicular to the first direction.

[0018] The aerosol generating device according to this embodiment includes a housing assembly, a heating assembly, a collecting assembly, and an air inlet assembly. The heating assembly, collecting assembly, and air inlet assembly are disposed within the housing assembly. The housing assembly has an air inlet. The heating assembly has a heating chamber. The collecting assembly has a collecting chamber that communicates with the heating chamber for collecting aerosols flowing back into the heating chamber. The air inlet assembly includes a first air inlet pipe and at least one second air inlet pipe. The first air inlet pipe has an open end and a closed end. The open end communicates with the air inlet, and the closed end is disposed within the collecting chamber. At least one second air inlet pipe is disposed on the side wall of the closed end. The collecting chamber communicates with the first air inlet pipe through the second air inlet pipe. Due to the placement of the second air inlet pipe, the flow path of the condensate is altered, effectively reducing the phenomenon of condensate entering the air inlet assembly, preventing condensate from entering and clogging the first air inlet pipe, and improving the user's suction experience. Attached Figure Description

[0019] Figure 1 This is a structural cross-sectional view of the generating device in use in one embodiment;

[0020] Figure 2 This is a cross-sectional view of the generating device in one embodiment;

[0021] Figure 3 This is a schematic diagram showing the airflow in the generating device in one embodiment.

[0022] Figure 4 This is a schematic diagram showing the flow of condensate in the generating device in one embodiment.

[0023] Figure 5 This is a schematic diagram of the assembly of the heating component, the collecting component, and the air intake component in one embodiment;

[0024] Figure 6 This is a partial structural diagram of the intake assembly in one embodiment.

[0025] Wherein: 100, shell assembly; 110, air inlet; 120, exhaust outlet; 200, heating assembly; 210, heating chamber; 220, heating element; 230, heat exchanger; 231, heat exchange hole; 240, support body; 250, base; 251, airflow channel; 300, collection assembly; 310, collection chamber; 320, collection bin; 400, air inlet assembly; 410, first air inlet pipe; 411, open end; 412, closed end; 420, second air inlet pipe; 430, sealing element; 500, power supply assembly; Y, first direction; X, second direction; A, aerosol generating product. Detailed Implementation

[0026] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. Similar elements in different embodiments are referred to by related similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0027] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments, and the operational steps involved in each embodiment can also be rearranged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for clearly describing a particular embodiment and do not imply that they represent the necessary components and / or order.

[0028] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).

[0029] This application provides an aerosol generating device (hereinafter referred to as "generating device") that can use the principle of heating without combustion to heat aerosol generating product A to form an aerosol for user use.

[0030] It should be noted that the term "aerosol" in this context refers to a dispersion of solid or liquid particles in a gas. The term "aerosol" as used herein can generally refer to substances that have been vaporized, atomized, sprayed, or jetted, or otherwise transformed from a solid or liquid form into an inhalable form containing suspended solid or liquid drug particles.

[0031] As used herein, the term "aerosol-generating article A" refers to any suitable compound or mixture of compounds that facilitates the formation of aerosols (e.g., stable aerosols that are substantially resistant to thermal degradation at the system's operating temperature) during use. Suitable aerosol-generating articles A are well known in the art and include, but are not limited to: polyols such as triethylene glycol, 1,3-butanediol, and glycerol; esters of polyols such as mono-, di-, or triacetic acid esters of glycerol; and aliphatic esters of mono-, di-, or polycarboxylic acids such as dimethyl dodecanoate and dimethyl tetradecanoate. Aerosol-generating article A may include nicotine. Aerosol-generating article A may include water. Aerosol-generating article A may include glycerol (also known as glycerol) having a higher boiling point than nicotine. Aerosol-generating article A may include propylene glycol. Aerosol-generating article A may include plant-based materials. Aerosol-generating article A may include homogeneous plant substrates. Homogeneous plant substrates may contain volatile compounds. These compounds may be released from aerosol-generating article A upon heating. Aerosol-generated product A is generally formed into a cylindrical structure by rolling packaging paper.

[0032] Please see Figures 1 to 6 The generating device includes a housing assembly 100, a heating assembly 200, a collecting assembly 300, and an air intake assembly 400. The heating assembly 200, the collecting assembly 300, and the air intake assembly 400 are disposed within the housing assembly 100. The housing assembly 100 provides housing space for the heating assembly 200, the collecting assembly 300, and the air intake assembly 400, and also protects the heating assembly 200, the collecting assembly 300, and the air intake assembly 400, and facilitates the carrying and transportation of the generating device.

[0033] The housing assembly 100 is provided with an air inlet 110 and an exhaust outlet 120, both of which are open to the outside atmosphere, thus enabling communication between the inside and outside of the housing assembly 100. When a user is drawing air in, outside air can enter the housing assembly 100 through the air inlet 110 and carry the aerosol through the exhaust outlet 120 to the user for use. The inside and outside of the housing assembly 100 are defined relative to the accommodating space, with the accommodating space being the interior.

[0034] The heating assembly 200 has a heating chamber 210 for containing aerosol-generated product A, and the heating chamber 210 is connected to the exhaust port 120. The collecting assembly 300 has a collecting chamber 310, which is connected to the heating chamber 210 and is used to collect the condensed and recirculated aerosol within the heating chamber 210. The air intake assembly 400 includes a first air intake pipe 410 and at least one second air intake pipe 420. The first air intake pipe 410 has an open end 411 and a closed end 412. The open end 411 is connected to the air intake port 110, and the closed end 412 is disposed within the collecting chamber 310. At least one second air intake pipe 420 is disposed on the side wall of the closed end 412, and the collecting chamber 310 is connected to the first air intake pipe 410 through the second air intake pipe 420.

[0035] During normal use, outside air enters the heating chamber 210 sequentially through the air inlet 110, the first air inlet pipe 410, the second air inlet pipe 420, and the collection chamber 310, carrying the aerosol within the heating chamber 210 to the user end. The airflow is as follows: Figure 3 As shown. However, some aerosols remain in the heating chamber 210 during or after the generation device is in operation, and liquefy into condensate as the temperature decreases. The condensate flows into the collection assembly 300 for storage to avoid affecting the taste of the aerosols. In conventional generation devices, the air intake assembly 400 only includes a first air intake pipe 410 and an air outlet provided on the first air intake pipe 410. The air outlet is connected to the collection chamber 310. The condensate (a viscous liquid) flows from the collection chamber 310 into the first air intake pipe 410 along the air outlet and accumulates in the first air intake pipe 410, blocking the first air intake pipe 410, affecting the air intake volume, and thus affecting the quantity and quality of aerosol generation.

[0036] Unlike traditional generating devices, this application has a second air inlet pipe 420 on the outer wall of the first air inlet pipe 410, which changes the flow path of the condensate. The modified flow path is shown in the figure below. Figure 4 As shown, this increases the resistance to condensate entering the first air intake pipe 410, effectively reducing the phenomenon of condensate entering the air intake assembly 400, preventing condensate from entering the first air intake pipe 410 and blocking the first air intake pipe 410, thus improving the user's suction experience.

[0037] In some embodiments, the heating assembly 200 further includes a heating body 220, which surrounds a heating cavity 210. When energized, the heating body 220 heats up the aerosol generating article A and / or the air flowing through the heating cavity 210.

[0038] In some embodiments, the heating assembly 200 further includes a heat exchanger 230 disposed in the heating chamber 210 and close to the air inlet assembly 400. The heat exchanger 230 is provided with a plurality of heat exchange holes 231. After the outside air enters the heat exchange holes 231 through the air inlet assembly 400, the heat generated by the heating body 220 is transferred to the air in the heat exchange holes 231 to form a hot airflow. The hot airflow is used to heat the aerosol to generate product A.

[0039] In some embodiments, the heating element 220 is made of a conductive metal material or a conductive material, and the heating element 220 directly heats up after being energized to heat the aerosol to generate product A.

[0040] In other embodiments, the heating element 220 includes a heat-conducting cylinder and a heating film, heating circuit, or heating layer disposed on the heat-conducting cylinder. The heating film, heating circuit, and heating layer may be formed by printing or coating with conductive paste.

[0041] Please see Figure 5 In some embodiments, the heating assembly 200 further includes a support 240 and a base 250. The base 250 is disposed at one end of the support 240 near the air inlet 110, and at least a portion of the structure of the collecting assembly 300 is inserted into the base 250, with an interference fit to improve the sealing effect. One end of the heating element 220 is snapped into the base 250, and the other end is snapped into the support 240 to fix the heating element 220. The base 250 is provided with an airflow channel 251, which connects the heating chamber 210 and the collecting chamber 310.

[0042] Please continue reading. Figure 5 And see Figure 6 In some embodiments, the collection assembly 300 includes a collection chamber 320, which has a collection cavity 310. Both ends of the collection chamber 320 are open. One of the openings communicates with the heating cavity 210 and is inserted into the base 250. The other opening is for the insertion of the air intake assembly 400. The air intake assembly 400 also includes a sealing member 430, which is disposed on the outer wall of the first air intake pipe 410. The sealing member 430 and the second air intake pipe 420 are spaced apart along the axial direction of the first air intake pipe 410, and the sealing member 430 is disposed closer to the air inlet 110 than the second air intake pipe 420. The sealing member 430 is used to seal the gap between the opening of the first air intake pipe 410 and the collection chamber 320 to form a sealed structure to prevent condensate leakage or gas leakage. Specifically, the sealing component 430 is arranged around the circumference of the first air intake pipe 410, and its size is adapted to the opening of the collection chamber 320. After the first air intake pipe 410 is inserted into place, the sealing component 430 and the collection chamber 320 are interference-fitted.

[0043] In some embodiments, the air intake assembly 400 is made of silicone material, which has the advantages of simple structure, easy processing and molding, and good airtightness, and can also prevent liquid leakage. The first air intake pipe 410, the second air intake pipe 420 and the sealing member 430 of the air intake assembly can be integrally molded.

[0044] In some embodiments, the closed end 412 is disposed in the collection cavity 310, and there is a certain distance between the sealing member 430 and the second air inlet pipe 420, so that sufficient storage space is formed between the second air inlet pipe 420 and the sealing member 430 to facilitate the storage of condensate and avoid the storage space being too small. When the liquid level of the condensate reaches the second air inlet pipe 420, it flows directly into the first air inlet pipe 410 through the second air inlet pipe 420.

[0045] In some embodiments, the open end 411 of the first air intake pipe 410 is embedded in the air intake 110.

[0046] In some embodiments, the first air intake pipe 410 and the second air intake pipe 420 are perpendicular and intersecting, which can increase the blocking effect of the second air intake pipe 420 on condensate.

[0047] In some embodiments, the axes of the first air intake pipe 410 and the second air intake pipe 420 are both straight lines to reduce airflow resistance and improve the user experience.

[0048] In some embodiments, the total radial cross-sectional area of ​​at least one second air intake pipe 420 ranges from 1.5m². 2 -3m 2 This structural design ensures smooth airflow while also impeding condensate flow. Optionally, the total radial cross-sectional area of ​​at least one second air inlet pipe 420 is 1.5m². 2 2m 2 2.5m 2 or 3m 2 .

[0049] In some embodiments, the end of the second air inlet pipe 420 is spaced apart from the inner wall of the collection chamber 310 to effectively ensure that the airflow can flow into the heating chamber 210 through the collection chamber 310.

[0050] In some embodiments, the extension length of a single second air inlet pipe 420 is 1.2mm-3.5mm, which ensures the airflow into the heating chamber 210, effectively guaranteeing that the amount of aerosol generated meets user needs, and also increases the obstruction area for condensate, further ensuring that condensate cannot enter the first air inlet pipe 410. Optionally, the extension length of the second air inlet pipe 420 is 1.2mm, 2.0mm, 2.5mm, 3.0mm, or 3.5mm.

[0051] In some embodiments, at least two second air intake pipes 420 are provided, and the at least two second air intake pipes 420 are arranged at circumferential intervals around the first air intake pipe 410. Specifically, the number of second air intake pipes 420 is related to the diameter of a single second air intake pipe 420; the larger the diameter, the fewer the number of second air intake pipes 420. The design principle is to ensure that the total radial cross-sectional area of ​​all second air intake pipes 420 is less than 1.5 m². 2 -3m 2 That's all.

[0052] In some embodiments, the diameter of the second air inlet pipe 420 is 1 mm, and there are four second air inlet pipes 420. The four second air inlet pipes 420 are spaced apart and evenly arranged along the circumference of the first air inlet pipe 410, so that the airflow can enter the collection chamber 310 evenly and then enter the heating chamber 210 evenly.

[0053] In some embodiments, two second air intake pipes 420 are provided, or they can be spaced apart along the extension length of the first air intake pipe 410. However, it is necessary to ensure that there is sufficient storage space between the second air intake pipe 420 closest to the sealing member 430 and the sealing member 430.

[0054] In some embodiments, the heating assembly 200, the collecting assembly 300, and the air intake assembly 400 are coaxially arranged along a first direction Y. The first direction Y is the orientation in which the generating device is set when the user uses it, i.e., the vertical direction. Therefore, under the action of gravity, the condensate flows from the heating chamber 210 into the collecting chamber 310 and is collected. The first air intake pipe 410 extends along the first direction Y, and the second air intake pipe 420 extends along the second direction X, so that the condensate cannot simultaneously enter the first air intake pipe 410 when it flows into the collecting chamber 310. Its flow path increases the section that bypasses the circumference of the second air intake pipe 420, thereby reducing the phenomenon of condensate flowing back to the first air intake pipe 410.

[0055] In some embodiments, the air inlet 110 and the exhaust outlet 120 are disposed opposite to each other on opposite sides of the housing assembly 100, and the heating assembly 200, the collecting assembly 300, and the air intake assembly 400 are disposed between the air inlet 110 and the exhaust outlet 120. Optionally, the air inlet 110 and the exhaust outlet 120 are coaxially arranged to reduce resistance during airflow.

[0056] In one embodiment, the aerosol generating device further includes a power supply component 500, which is also disposed within the housing component 100. The power supply component 500 is electrically connected to the heating component 200 and is used to supply power to the heating component 200. It can also adjust the operating temperature and / or power of the heating component 200. The power supply component 500 and the heating component 200 are arranged side by side along the second direction X, and the second direction X is perpendicular to the first direction Y. This can make reasonable use of the space within the housing component 100, thereby helping to reduce the size of the generating device, facilitating its miniaturization design, and making it easy for users to carry.

[0057] The above examples illustrate this application only to aid understanding and are not intended to limit its scope. Those skilled in the art to which this application pertains can make various simple deductions, modifications, or substitutions based on the ideas presented.

Claims

1. An aerosol-generating device, characterized by, The application relates to an aerosol generating device. The aerosol generating device comprises: a shell assembly, which is provided with an air inlet opening and is in communication with the outside air; a heating assembly arranged in the shell assembly, which is provided with a heating cavity for accommodating an aerosol generating article; a collecting assembly arranged in the shell assembly, which is provided with a collecting cavity in communication with the heating cavity and used for collecting the aerosol condensed and returned in the heating cavity; and an air inlet assembly arranged in the shell assembly, which comprises a first air inlet pipe with an open end in communication with the air inlet opening and a closed end arranged in the collecting cavity, and at least one second air inlet pipe arranged on the side wall of the closed end, and the collecting cavity is in communication with the first air inlet pipe through the second air inlet pipe.

2. The aerosol-generating device of claim 1, wherein, The first air inlet pipe and the second air inlet pipe are perpendicular and intersected.

3. The aerosol-generating device of claim 1, wherein, The axes of the first air inlet pipe and the second air inlet pipe are straight lines.

4. The aerosol-generating device of claim 1, wherein, The total area of the radial section of at least one of the second intake pipes ranges from 1.5 m 2 -3 m 2 .

5. The aerosol-generating device of claim 1, wherein, The end of the second air inlet pipe is arranged in a spaced manner with the inner wall of the collecting cavity.

6. The aerosol-generating device of claim 1 or 5, wherein, The extension length of the second air inlet pipe is 1.2-3.5 mm.

7. The aerosol-generating device of claim 1, wherein, The second air inlet pipe is provided with at least two second air inlet pipes arranged in a spaced manner around the circumference of the first air inlet pipe.

8. The aerosol-generating device of claim 1, wherein, The collecting assembly comprises a collecting chamber, which is provided with the collecting cavity and is open at both ends, one of the openings is in communication with the heating cavity, and the other opening is used for inserting the air inlet assembly.

9. The aerosol-generating device of claim 1, wherein, The heating assembly comprises a support body and a base arranged at one end of the support body close to the air inlet opening, and at least part of the structure of the collecting assembly is inserted into the base, the base is provided with an airflow channel for connecting the heating cavity and the collecting cavity. 10.The aerosol-generating device of claim 1, wherein, The heating assembly, the collecting assembly and the air inlet assembly are coaxially arranged along a first direction; the aerosol generating device further comprises a power supply assembly electrically connected with the heating assembly and used for supplying power to the heating assembly, and the power supply assembly and the heating assembly are arranged side by side along a second direction, and the second direction and the first direction are perpendicular to each other.

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