Aerosol-generating device and aerosol-generating system

Abstract

The application provides an aerosol generating device and an aerosol generating system. The aerosol generating system comprises an aerosol generating article and an aerosol generating device. The aerosol generating device has an airflow channel and a heating cavity. The heating cavity is used for inserting the aerosol generating article and heating the aerosol generating article. The airflow channel penetrates the heating cavity. The aerosol generating device further comprises a gas pressure adjusting structure and a circuit board. The gas pressure adjusting structure is used for adjusting the gas pressure in the airflow channel. The gas pressure adjusting structure is in communication connection with the circuit board. When the size of the gap in the substrate section of the aerosol generating article changes and causes the gas pressure to change, the circuit board can control the gas pressure adjusting structure to adjust the gas pressure in the airflow channel. The airflow channel is pressurized in the later stage of suction. The airflow can penetrate the pores of the carbonized layer to "flush" the deep aerosol out, thereby reducing the aerosol retention.

Description

Technical Field

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

[0002] The aerosol generating device generates aerosols by heating a non-combustible aerosol generating product. The aerosol generating product includes a matrix section. During atomization, some of the medium in the matrix section is atomized into aerosols and overflows, causing a change in the size of the internal voids of the medium and generating a negative pressure inside the medium. This reduces the carry-out of aerosols, resulting in aerosol retention. Utility Model Content

[0003] The purpose of this application is to provide an aerosol generating device and an aerosol generating system to solve the technical problem in the prior art that the aerosol generated by the aerosol generated in the later stage of use is difficult to be carried out by the airflow.

[0004] To achieve the above objectives, the technical solution adopted in this application is as follows: an aerosol generating device is provided, having an airflow channel and a heating chamber, wherein the heating chamber is used for inserting an aerosol generating product therein and heating the aerosol generating product; the airflow channel passes through the heating chamber, and the aerosol generating device further includes a pressure regulating structure and a circuit board, wherein the pressure regulating structure is used to regulate the air pressure in the airflow channel, and the pressure regulating structure is communicatively connected to the circuit board.

[0005] In some embodiments, the air pressure regulating structure is disposed between the air inlet of the airflow channel and the heating chamber.

[0006] In some embodiments, the pressure regulating structure adjusts the pressure of the airflow channel by changing the airflow rate of the airflow channel;

[0007] Alternatively, the pressure regulating structure can directly adjust the pressure of the airflow channel.

[0008] In some embodiments, the air pressure regulating structure includes a fan;

[0009] Alternatively, the pressure regulating structure may include a pressure pump.

[0010] In some embodiments, the aerosol generating device further includes a plurality of air inlets, each of which connects the airflow channel to the external atmosphere; the cross-sectional area of ​​the air inlets is in the range of 1 mm². 2 -3mm 2 .

[0011] In some embodiments, the aerosol generating apparatus further includes a heating component, the heating chamber being formed in the heating component, and the heating component being communicatively connected to the circuit board.

[0012] In some embodiments, the aerosol generating device includes a main housing, an upper support, and a lower support. The upper support and the lower support are respectively installed in the main housing and connected to the main housing. The two axial ends of the heating component are respectively connected to the upper support and the lower support. The airflow channel passes through the lower support, the heating component, and the upper support in sequence. The air pressure regulating structure is installed between the lower support and the main housing.

[0013] In some embodiments, the lower support includes a first connecting portion, a throttling portion, and a second connecting portion connected sequentially along its axial direction. The inner diameter of the second connecting portion and the inner diameter of the first connecting portion are both larger than the inner diameter of the throttling portion. The second connecting portion is connected to the heating assembly, and the first connecting portion is connected to the main housing. The air pressure regulating structure is installed between the first connecting portion and the main housing.

[0014] In some embodiments, the main housing has a plurality of air inlets communicating with the airflow channel, and a first flange protrudes from the inner surface of the bottom wall of the main housing. The first flange surrounds each of the air inlets and communicates with each of the air inlets. The first connecting portion is axially connected to the first flange and surrounds it to form a receiving cavity. The air pressure regulating structure is installed in the receiving cavity.

[0015] On the other hand, this application also provides an aerosol generation system, including an aerosol generation article and the aforementioned aerosol generation device.

[0016] The beneficial effects of the aerosol generating device and aerosol generating system provided in this application are as follows: By setting a pressure regulating structure in the airflow channel, and the pressure regulating structure being communicatively connected to the circuit board, the circuit board can control the pressure regulating structure to adjust the air pressure in the airflow channel when the size of the voids in the matrix section of the aerosol generating product changes, thereby changing the air pressure. This allows the pressure regulating structure to adjust the air pressure in the airflow channel according to the actual situation during the suction process, during suction interruptions, during the later stages of suction, and after suction. This not only increases the pressure in the airflow channel during the later stages of suction, allowing the airflow to penetrate the pores of the carbonized layer and "flushing" out the deep aerosols, thus reducing aerosol retention, but also cleans the airflow channel during suction interruptions and after suction, reducing flue gas backflow and condensation. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A three-dimensional structural schematic diagram of the aerosol generation system provided in the embodiments of this application;

[0019] Figure 2 A cross-sectional structural schematic diagram of the aerosol generation system provided in an embodiment of this application;

[0020] Figure 3 A cross-sectional structural schematic diagram of the aerosol generating device provided in the embodiments of this application;

[0021] Figure 4 for Figure 3 Enlarged structural diagram of the lower support section corresponding to the aerosol generation device;

[0022] Figure 5 for Figure 3 Enlarged structural diagram of the upper support section corresponding to the aerosol generation device;

[0023] Figure 6 A schematic diagram of the circuit principle of the aerosol generating device provided in the embodiments of this application;

[0024] Figure 7 This is a schematic flowchart of the airflow regulation method provided in an embodiment of this application.

[0025] The following are the labeling elements in the figure:

[0026] 1. Aerosol generating device; 100. Main housing; 110. Upper housing; 111. Second flange; 1111. Second axial step surface; 120. Bottom cover; 121. First flange; 200. Heating assembly; 300. Upper support; 310. Third axial step surface; 400. Lower support; 410. First connecting part; 411. First transition section; 412. First connecting section; 420. Throttling part; 430. Second connecting part; 431. Second transition section; 432. Second connecting section; 440. Limiting part; 450. First axial step Surface; 500, air pressure regulating structure; 510, fan; 600, heat insulation jacket; 700, outer tube; 800, circuit board; 810, processor; 820, memory; 830, power module; 840, timer; 900, battery; 1000, sealing element; 1100, information input structure; 1200, air pressure sensor; 101, airflow channel; 102, heating chamber; 103, air inlet; 104, air outlet; 2, aerosol generating product; 21, matrix section; 22, plug section; 23, functional section; 24, hollow section. Detailed Implementation

[0027] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0028] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0029] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0031] As described in the background section, aerosol-generating products include a matrix segment. During atomization, the medium in the matrix segment undergoes pyrolysis and expansion under continuous heating, leading to enlargement of the internal pores. The uniform airflow channels formed by the initially dense structure are disrupted, the airflow path changes from concentrated to dispersed, and the internal air pressure decreases, making it unable to efficiently carry aerosol particles. Instead, eddies form in the wide pores, causing aerosol retention. Furthermore, the high temperature in the later stages carbonizes the surface of the matrix segment, forming a loose, porous structure. Although the overall airflow resistance decreases, the aerosol generation location migrates deeper, requiring penetration through a thicker carbonized layer to be carried out. At this point, the low-resistance airflow preferentially "short-circuits" through the pores of the carbonized layer, bypassing the deeper aerosol-rich areas.

[0032] To address the aforementioned technical problems, this application provides an aerosol generating device 1 and an aerosol generating system. By providing a pressure regulating structure 500 in the airflow channel 101 of the aerosol generating product 2, the pressure in the airflow channel 101 can be adjusted by the pressure regulating structure 500 when the size of the voids in the matrix section 21 changes. This allows the airflow to be pressurized in the later stages of suction, enabling it to penetrate the pores of the carbonized layer and "wash out" the deep aerosols, thereby reducing aerosol retention.

[0033] Please see Figure 1 and Figure 2 The aerosol generation system provided in the embodiments of this application will now be described. The aerosol generation system includes an aerosol generation device 1 and an aerosol generation article 2. The aerosol generation article 2 is at least partially inserted into the aerosol generation device 1. The aerosol generation device 1 is used to heat the non-combustible aerosol generation article 2 to generate aerosols.

[0034] The aerosol generating article 2 includes at least a matrix segment 21, which comprises an aerosol generating matrix for use in generating aerosols by heating with the aerosol generating device 1. The aerosol generating matrix is ​​a solid matrix of plant leaves with a specific aroma, and can generate aerosols without burning under heating conditions; the morphology of the aerosol generating matrix is ​​not limited to ordered solid aerosol generating matrix, disordered solid aerosol generating matrix, and particulate solid aerosol generating matrix.

[0035] In addition, the aerosol generating article 2 may also include a plug section 22, a functional section 23, a hollow section 24, and a filter section 25. The plug section 22 is located upstream of the matrix section 21. The plug section 22 not only prevents residue from the matrix section 21 from falling off, but also adsorbs or stores oil that permeates from the matrix section 21 at high temperatures and flows to the plug section 22, thereby preventing oil from flowing out from the distal lip of the aerosol generating article 2. The functional section 23 is located downstream of the matrix section 21 and is used to reduce the aerosol temperature. The hollow section 24 is located downstream of the functional section 23 and is used to support the filter section 25. The filter section 25 is used to filter large particles and also has a further cooling function. When the user inhales, it directly contacts the lip to draw the aerosol into the mouth.

[0036] Please see Figure 2 and Figure 3 The aerosol generating apparatus 1 provided in this application embodiment will now be described. The aerosol generating apparatus 1 has an airflow channel 101 and a heating chamber 102. The heating chamber 102 is used to insert the aerosol generating article 2 and heat the aerosol generating article 2. The airflow channel 101 passes through the heating chamber 102. The aerosol generating apparatus 1 also includes a pressure regulating structure 500 and a circuit board 800. The pressure regulating structure 500 is used to regulate the air pressure in the airflow channel 101. The pressure regulating structure 500 is communicatively connected to the circuit board 800.

[0037] The airflow channel 101 passes through the heating chamber 102, and the aerosol generating product 2 is inserted into the heating chamber 102. When the air pressure regulating structure 500 adjusts the air pressure of the airflow channel 101, it can not only adjust the air pressure of the airflow channel 101 and the heating chamber 102, but also adjust the air pressure in the aerosol generating product 2.

[0038] The air pressure regulating structure 500 is communicatively connected to the circuit board 800. The circuit board 800 can control the air pressure regulating structure 500 according to the actual application situation to adjust the air pressure of the airflow channel 101. For example, the air pressure regulating structure 500 can be controlled according to the suction time; or, the air pressure can be controlled according to the air pressure of the airflow channel 101; even, a control program can be pre-stored in the circuit board 800, so that the air pressure regulating structure 500 is automatically started after the aerosol generating device 1 starts for a preset time; in addition, the circuit board 800 can also be manually controlled to control the air pressure regulating structure 500.

[0039] It should be noted that in this application, the communication connection between the pressure regulating structure 500 and the circuit board 800 is only an information transmission connection. The circuit board 800 can control the start-up and power value of the pressure regulating structure 500 based on the pressure detected by the pressure sensor 120 in the airflow channel 101. This control is a simple program control and is an existing control program. This embodiment only needs to protect the communication connection between the pressure regulating structure 500 and the circuit board 800, and it belongs to the protected object of the utility model.

[0040] The aerosol generating device 1 in this embodiment of the application provides a pressure regulating structure 500 in the airflow channel 101. The pressure regulating structure 500 is communicatively connected to the circuit board 800. This allows the circuit board 800 to control the pressure regulating structure 500 to adjust the air pressure in the airflow channel 101 when the size of the gaps in the matrix section 21 of the aerosol generating product 2 changes, causing a change in air pressure. This results in increased pressure in the airflow channel 101 during the later stages of suction. During suction, during suction interruptions, during the later stages of suction, and after suction, the pressure regulating structure can adjust the air pressure in the airflow channel according to the actual situation. This not only allows the airflow to penetrate the pores of the carbonized layer and "wash" out the deep aerosols, thereby reducing aerosol retention, but also cleans the airflow channel during suction interruptions and after suction, reducing flue gas backflow and condensation. In addition, by communicating with the heating component 200 and the processor 810, the heating temperature of the heating component 200 can be controlled by the processor 810. For example, the heating temperature of the heating component 200 can be increased in the later stage of suction to increase the aerosol generation rate and promote the aerosol to be carried out by the airflow, thereby improving the utilization rate of aerosol.

[0041] In some embodiments, please refer to Figure 2 and Figure 3 The pressure regulating structure 500 is disposed between the air inlet 103 and the heating chamber 102 of the airflow channel 101. On the one hand, it allows airflow into the airflow channel 101, and the pressure regulating structure 500 adjusts the air pressure by regulating the airflow volume. On the other hand, it prevents the pressure regulating structure 500 from being positioned elsewhere and affecting the insertion of the aerosol-generated product 2 into the heating chamber 102. It is understood that in other embodiments of this application, as long as the space in the airflow channel 101 is large enough, the pressure regulating structure 500 can also be installed in other positions within the airflow channel 101, avoiding the heating chamber 102, or even outside the airflow channel 101, as long as it is in fluid communication with the airflow channel 101. This is not a unique limitation.

[0042] In this application, there are many types of air pressure regulating structures 500.

[0043] In some embodiments, the air pressure regulating structure 500 adjusts the air pressure within the airflow channel 101 by regulating the airflow velocity within the airflow channel 101. For details, please refer to... Figure 2 and Figure 3 The air pressure regulating structure 500 includes a fan 510. The circuit board 800 controls the power value of the fan 510 to regulate the rotation speed of the fan 510. The fan blades of the fan 510 drive the airflow to increase the airflow speed, thereby increasing the air pressure. This allows the airflow to penetrate the pores of the carbonized layer and "wash" out the deep aerosols, thereby reducing the retention of aerosols.

[0044] In other embodiments of this application, the air pressure within the airflow channel 101 can also be directly adjusted via the air pressure regulating structure 500. Specifically, the air pressure regulating structure 500 includes a pressure pump, which is communicatively connected to the processor 810. The operating power of the pressure pump is controlled by the circuit board 800 to regulate the air pressure within the airflow channel 101. Furthermore, in other embodiments of this application, a flow valve or other device capable of adjusting the air pressure within the airflow channel 101 can also be used; this is not the only possible method.

[0045] In some embodiments, please refer to Figure 2 and Figure 3 The aerosol generating apparatus 1 also includes a heating component 200, with a heating chamber 102 formed within the heating component 200. The heating component 200 is communicatively connected to a circuit board 800. By forming the heating chamber 102 within the heating component 200 to contain and heat the aerosol-generating product 2, the heating uniformity of the aerosol-generating product 2 can be improved. Simultaneously, by communicatively connecting the heating component 200 and the circuit board 800, the heating temperature of the heating component 200 can be controlled via the circuit board 800. For example, the heating temperature of the heating component 200 can be increased in the later stages of suction to improve the aerosol generation rate and promote the aerosol being carried away by the airflow, thereby improving the utilization rate of the aerosol.

[0046] In some embodiments, please refer to Figure 2 and Figure 3The aerosol generating device 1 includes a main housing 100, an upper support 300, and a lower support 400. The main housing 100 has a mounting cavity and an air inlet 103 and an air outlet 104 respectively communicating with the mounting cavity. The upper support 300 is disposed in the mounting cavity and connected to the main housing 100, and the lower support 400 is disposed in the mounting cavity and connected to the main housing 100. The axial ends of the heating component 200 are respectively connected to the upper support 300 and the lower support 400. The lower support 400 communicates with the air inlet 103, and the upper support 300 communicates with the air outlet 104. The airflow channel 101 passes through the lower support 400, the heating component 200, and the upper support 300 in sequence. The air pressure regulating structure 500 is installed between the lower support 400 and the main housing 100. The upper support 300 and the lower support 400 are provided to facilitate the installation of the heating component 200 in the main housing 100 and to facilitate the installation of the air pressure regulating structure 500.

[0047] In some embodiments, please refer to Figure 3 and Figure 4 The lower support 400 includes a first connecting part 410, a throttling part 420 and a second connecting part 430 connected sequentially along its axial direction. The inner diameter of the second connecting part 430 and the inner diameter of the first connecting part 410 are both larger than the inner diameter of the throttling part 420. The second connecting part 430 is connected to the heating assembly 200, and the first connecting part 410 is connected to the main housing 100. The air pressure regulating structure 500 is installed between the first connecting part 410 and the main housing 100.

[0048] External airflow enters between the main housing 100 and the first connecting part 410 through the air inlet 103.

[0049] When the pressure regulating structure 500 is not activated, the airflow directly enters the heating chamber 102 and the aerosol generating product 2 via the throttling section 420 and the second connecting section 430. The throttling section 420 is designed to converge the airflow before it enters the aerosol generating product 2, thereby increasing the air pressure and ensuring that the airflow smoothly enters the aerosol generating product 2 and carries the aerosol out.

[0050] When the pressure regulating structure 500 is activated, it drives the airflow and increases the airflow pressure, enabling the airflow to carry away the aerosol smoothly.

[0051] In some embodiments, please refer to Figure 4 The bottom inner surface of the main housing 100 is provided with a first flange 121. The first flange 121 surrounds the air inlet 103 and communicates with the air inlet 103. The first connecting part 410 is axially connected to the first flange 121 and surrounds it to form a receiving cavity. The air pressure regulating structure 500 is installed in the receiving cavity.

[0052] Specifically, the air pressure regulating structure 500 can be connected to the first flange 121 by means of bonding, welding, screw locking or snap-fitting.

[0053] Specifically, the first connecting part 410 and the first flange 121 form a sealed connection by means of bonding, welding, screw locking or snap-fitting.

[0054] Specifically, the first connecting portion 410 includes a first transition section 411 and a first connecting section 412. Both the first flange 121 and the first connecting section 412 are cylindrical, and their outer diameters are the same and they abut against each other. The first transition section 411 is conical, and its inner diameter gradually decreases from the first connecting section 412 towards the throttling portion 420. The first transition section 411 allows airflow to gradually converge towards the throttling portion 420 along its conical surface, reducing airflow resistance.

[0055] In some embodiments, please refer to Figure 4 The second connecting portion 430 includes a second transition section 431 and a second connecting section 432. The second connecting section 432 is generally cylindrical, and the second transition section 431 is conical. The inner diameter of the second transition section 431 gradually decreases from the throttling portion 420 to the second connecting section 432. The bottom end of the heating assembly 200 is connected to the second connecting section 432, and the bottom end of the aerosol generating article 2 is inserted into the second connecting section 432 via the heating chamber 102.

[0056] For details, please refer to Figure 4 The inner surface of the second transition section 431 is provided with a limiting part 440, which is used to support the bottom end of the aerosol generating article 2 and limit the insertion of the aerosol generating article 2.

[0057] Optionally, there may be multiple limiting parts 440, and each limiting part 440 is equally distributed along the circumference of the second transition section 431.

[0058] In some embodiments, please refer to Figure 4 The second connecting section 432 is recessed along its inner surface, axially away from the second transition section 431, to form a first axial stepped surface 450. The bottom end of the heating assembly 200 is inserted into the second connecting section 432 and supported on the first axial stepped surface 450. The aerosol generating device 1 also includes a sealing element 1000, which is inserted into the second connecting section 432 and abuts against the inner wall of the second connecting section 432 and the bottom end of the heating assembly 200, thereby forming a tight connection between the heating assembly 200 and the second connecting section 432.

[0059] In some embodiments, please refer to Figure 5The inner surface of the top wall of the main housing 100 is provided with a second flange 111, which surrounds and communicates with the vent 104. The upper bracket 300 is connected between the second flange 111 and the top end of the heating assembly 200. Specifically, the inner surface of the end of the second flange 111 near the upper bracket 300 is recessed to form a second axial stepped surface 1111, and the top end of the upper bracket 300 is inserted into the second flange 111 and abuts against the second axial stepped surface 1111 axially.

[0060] Specifically, the upper bracket 300 can be connected to the second flange 111 by interference fit, bonding, welding or snap-fit.

[0061] Specifically, the inner surface of the upper bracket 300 near the heating component 200 is recessed to form a third axial step surface 310, and the top end of the heating component 200 is inserted into the upper bracket 300 and abuts against the third axial step surface 310.

[0062] In some embodiments, please refer to Figure 2 and Figure 3 The aerosol generating device 1 includes an outer tube 700 and a heat insulation sleeve 600. The heat insulation sleeve 600 is fitted over the heating component 200, and the outer tube 700 is fitted over the heat insulation sleeve 600. The axial ends of the outer tube 700 are connected to the upper support 300 and the lower support 400, respectively. The heat insulation sleeve 600 isolates the heat from the heating component 200, preventing heat transfer from the heating component 200 to other parts of the aerosol generating device 1, such as the circuit board 800 and the battery 900, which could affect their lifespan. The outer tube 700 is used to install the heat insulation sleeve 600.

[0063] Optionally, the insulation sleeve 600 is made of aerogel, which not only has good thermal insulation properties but is also an environmentally friendly structure. It is understood that in other embodiments of this application, the insulation sleeve 600 can also be made of other materials with good thermal insulation properties, such as insulation cotton, glass wool, or rigid polyurethane foam.

[0064] Optionally, the top end of the outer tube 700 is fitted onto the outer peripheral surface of the upper support 300, and the top end of the outer tube 700 is connected to the outer peripheral surface of the upper support 300 by bonding, welding, or interference fit. The bottom end of the outer tube 700 is fitted onto the outer peripheral surface of the lower support 400, and the bottom end of the outer tube 700 is connected to the outer peripheral surface of the lower support 400 by bonding, welding, or interference fit.

[0065] In some embodiments, please refer to Figure 3 and Figure 4 The aerosol generating device 1 also includes multiple air inlets 103, each air inlet 103 connecting the airflow channel 101 to the external atmosphere; the cross-sectional area of ​​the air inlet 103 is 1 mm².2 -3mm 2 For example, the cross-sectional area of ​​the air inlet 103 can be 1 mm². 2 1.2mm 2 1.4mm 2 1.6mm 2 1.8mm 2 2mm 2 2.2mm 2 2.4mm 2 2.6mm 2 2.8mm 2 or 3mm 2 The cross-sectional area of ​​the air inlet 103 cannot be too large, otherwise external insects and dirt will enter the airflow channel 101, affecting the appearance of the aerosol generating device 1; conversely, the cross-sectional area of ​​the air inlet 103 cannot be too small, otherwise the airflow resistance of the air inlet 103 will be too high, affecting the entry of external atmosphere into the airflow channel 101 and the effective output of aerosols. In this embodiment, the cross-sectional area of ​​the air inlet 103 is limited to 1 mm². 2 -3mm 2 Within the range, this allows for the reduction of external dirt entering the airflow channel 101 while ensuring smooth external airflow into the airflow channel 101, and also avoids affecting the appearance of the aerosol generating device 1.

[0066] In this application, each air inlet 103 is formed on the main housing 100. The number of air inlets 103 is not limited, as long as the air inlets 103 are evenly distributed on the portion of the main housing 100 corresponding to the airflow channel 101. For example, in this embodiment, the number of air inlets 103 is 7. In other embodiments, the number of air inlets 103 can also be 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, or 13, etc., and is not limited here.

[0067] In some embodiments, please refer to Figure 2 and Figure 3 The aerosol generating device 1 also includes a battery 900 and a circuit board 800. The circuit board 800 is equipped with a processor 810 and a power module 830. The processor 810 and the power module 830 are communicatively connected, and the battery 900 and the power module 830 are electrically connected. The battery 900 and the heating component 200 are respectively disposed on the main housing 100 and spaced laterally. The circuit board 800 is disposed between the battery 900 and the heating component 200. The heating component 200 is connected to the processor 810 on the circuit board 800 by a wire. The wire is disposed between the heating component 200 and the outer tube 700, and the wire is led out through the gap between the outer tube 700 and the lower support 400 to connect to the circuit board 800.

[0068] Optionally, the main housing 100 includes an upper housing 110 and a bottom cover 120. The battery 900, heating component 200, upper bracket 300 and lower bracket 400 are all installed on the upper housing 110. The bottom cover 120 is placed over the bottom opening of the upper housing 110 and is sealed to the upper housing 110.

[0069] In this application, there are various situations in which the pressure regulating structure 500 needs to be activated. For example, the pressure regulating structure 500 can be activated during the suction process, during the intermittent suction, after the aerosol generating device 1 has been used for a period of time, or when the aerosol generating product 2 is pulled out of the heating chamber 102. Examples are given below.

[0070] During the suction process, the air pressure regulating structure 500 is activated. The processor 810 can activate the air pressure regulating structure 500 based on the air pressure of the airflow channel 101, or based on the heating duration or number of heating cycles of the heating component 200. Alternatively, the user can manually input activation information to activate the air pressure regulating structure 500 after a period of suction. Examples are given below.

[0071] In the first scenario, during the suction process, the processor 810 controls the activation and deactivation of the pressure regulating structure 500 and its power value based on the air pressure in the airflow channel 101. For example, when the air pressure in the airflow channel 101 decreases, it indicates that the voids in the matrix section 21 of the aerosol-generated product 2 have increased, making it difficult for the aerosol to be carried out by the airflow. In this case, the processor 810 can activate the pressure regulating structure 500 to drive the airflow, thereby increasing the airflow velocity and pressurizing the airflow channel 101. This allows the airflow to penetrate the pores of the carbonized layer, "flushing" out the deep aerosol and reducing aerosol retention.

[0072] Specifically, the power value of the air pressure regulating structure 500 can be set according to actual needs. For example, the power value can be set to a fixed value, so that the power value of the air pressure regulating structure 500 is the same whenever the air pressure regulating structure 500 is activated; or the power value of the air pressure regulating structure 500 can be set to gradually increase, for example, by adjusting the power value of the air pressure regulating structure 500 according to the air pressure changes in the airflow channel 101.

[0073] In some embodiments, please refer to Figure 6The aerosol generating device 1 also includes a pressure sensor 1200 for detecting the pressure value of the airflow channel 101, and the pressure sensor 1200 is communicatively connected to the processor 810. During the suction process, the processor 810 controls the pressure regulating structure 500 based on the pressure value detected by the pressure sensor 1200. The pressure sensor 1200 allows for real-time monitoring of the pressure value of the airflow channel 101, enabling the processor 810 to adjust the power value of the pressure regulating structure 500 in real-time or periodically based on the pressure value of the airflow channel 101. This ensures that the pressure within the airflow channel 101 is updated in real time, guaranteeing that aerosols are carried away as much as possible and reducing aerosol retention.

[0074] In some embodiments, please refer to Figure 6 The aerosol generating device 1 also includes a memory 820 that is communicatively connected to the processor 810. The memory 820 pre-stores a first relationship between the air pressure value of the airflow channel 101 and the power value of the air pressure regulating structure 500. The processor 810 controls the power value of the air pressure regulating structure 500 based on the air pressure value detected by the air pressure sensor 1200 and the first relationship.

[0075] Specifically, generally speaking, the lower the air pressure value of the airflow channel 101, the larger the void in the matrix section 21, and the more difficult it is for aerosols to be carried out. Therefore, a higher power value is required for the air pressure regulating structure 500. Conversely, the higher the air pressure value of the airflow channel 101, the lower the power value required for the air pressure regulating structure 500.

[0076] In addition, the processor 810 can adjust the power value of the pressure regulating structure 500 in real time based on the pressure value detected by the pressure sensor 1200. The processor 810 can also adjust the power value of the pressure regulating structure 500 based on the pressure range detected by the pressure sensor 1200. For example, if the possible pressure values ​​in the airflow channel 101 are segmented, the processor 810 can adjust the power value of the pressure regulating structure 500 according to different pressure ranges.

[0077] In the second scenario, the processor 810 controls the power value of the pressure regulating structure 500 based on the heating duration of the heating component 200. The power value of the pressure regulating structure 500 is positively correlated with the heating duration of the heating component 200. The heating duration of the heating component 200 is approximately proportional to the consumption of the substrate section 21. Therefore, the consumption of the substrate section 21 can be directly determined based on the heating duration of the heating component 200, thereby adjusting the power value of the pressure regulating structure 500. For example, when the heating duration of the heating component 200 is longer, the consumption of the substrate section 21 is greater, and the aerosol retention within the substrate section 21 is more severe. Therefore, the power value of the pressure regulating structure 500 needs to be increased to reduce aerosol retention. The shorter the heating time of the heating component 200, the less the amount of substrate 21 is consumed, and the less aerosol is retained in the substrate 21. Therefore, the power value of the pressure regulating structure 500 can be adjusted to a smaller value, or even the pressure regulating structure 500 can be not started.

[0078] The heating duration of the heating component 200 can be calculated by a timer 840 or a processor-integrated timer. The timer 840 is connected to the processor 810. The timer 840 calculates the heating duration of the heating component 200 in real time and feeds it back to the processor 810. The processor 810 controls the air pressure regulating structure 500 based on the heating duration of the heating component 200.

[0079] In some specific embodiments, a second relationship between the heating duration of the heating component 200 and the power value of the pressure regulating structure 500 can be pre-stored in the memory 820. The processor 810 can find the corresponding power value based on the heating duration of the heating component 200, and then adjust the pressure regulating structure 500 according to the power value.

[0080] Specifically, the heating time of the heating element 200 can be segmented, and different power values ​​can be set for different time periods. Alternatively, the power value can be gradually changed as the heating time of the heating element 200 increases.

[0081] In some embodiments, the processor 810 controls the power value of the pressure regulating structure 500 and the heating temperature of the heating component 200 according to the heating duration of the heating component 200. The power value of the pressure regulating structure 500 is positively correlated with the heating duration of the heating component 200, and the heating temperature of the heating component 200 is also positively correlated with the heating duration. That is, in the later stages of use of the aerosol generating article 2, as the matrix segment 21 is gradually consumed, the aerosol generating matrix inside it may change, resulting in an increase in the energy required to generate the same amount of aerosol. Therefore, in order to ensure the consistency of the inhalation experience, the heating temperature may need to be gradually increased in the later stages of heating. In this embodiment, by increasing the air pressure of the airflow channel 101 through the pressure regulating structure 500 in the later stages of heating, the heating temperature of the matrix segment 21 by the heating component 200 is also increased, so that the matrix segment 21 can generate an aerosol equivalent to that in the early stages in the later stages of heating, and the aerosol can be carried out by the pressurized airflow, thereby ensuring the consistency of the inhalation experience.

[0082] In some specific embodiments, a second relationship between the heating duration of the heating component 200 and the power value of the pressure regulating structure 500, and a third relationship between the heating duration of the heating component 200 and the heating temperature of the heating component 200 are pre-stored in the memory 820. During the suction process, the processor 810 controls the power value of the pressure regulating structure 500 and the heating temperature of the heating component 200 according to the heating duration of the heating component 200, thereby ensuring the consistency of the suction before and after the aerosol generation product 2.

[0083] Specifically, generally speaking, the longer the heating time of the heating component 200, the greater the power value of the pressure regulating structure 500 required, and the higher the heating temperature of the heating component 200 required; the shorter the heating time of the heating component 200, the smaller the power value of the pressure regulating structure 500 required, and the lower the heating temperature of the heating component 200 required.

[0084] Specifically, the heating duration of the heating component 200 can be segmented into multiple time periods, the power value of the pressure regulating structure 500 can be divided into multiple power levels, and the heating temperature of the heating component 200 can be divided into multiple temperature levels. Each heating time period corresponds one-to-one with each power level and each temperature level. When it is detected that the heating duration of the heating component 200 corresponds to each time period, the corresponding power level of the pressure regulating structure 500 and the corresponding temperature level of the heating component 200 are set.

[0085] In the third scenario, the processor 810 controls the power value of the pressure regulating structure 500 based on the number of times the heating component 200 is heated. The power value of the pressure regulating structure is positively correlated with the number of times the heating component is heated. Specifically, the more times the heating component 200 is heated, the more substrate 21 is consumed. Therefore, the consumption of substrate 21 can be directly determined based on the number of times the heating component 200 is heated, thereby adjusting the power value of the pressure regulating structure 500. It should also be noted that the number of times the heating component 200 is heated refers to the number of times it is heated within a certain time period, that is, the number of times the heating component 200 is activated.

[0086] Alternatively, in some embodiments, the processor 810 may control the power value of the pressure regulating structure 500 and the heating temperature of the heating component 200 based on the number of heating cycles of the heating component 200. The power value of the pressure regulating structure 500 is positively correlated with the number of heating cycles of the heating component 200, and the heating temperature of the heating component 200 is also positively correlated with the number of heating cycles. In this embodiment, by increasing the air pressure in the airflow channel 101 through the pressure regulating structure 500 in the later stages of heating, the heating temperature of the substrate section 21 by the heating component 200 is also increased. This allows the substrate section 21 to generate an aerosol in the later stages of heating that is comparable to that in the earlier stages, and this aerosol can be carried out by the pressurized airflow, thereby ensuring the consistency of the sucking sensation before and after heating.

[0087] In some other embodiments of this application, the user can manually input activation information to activate the air pressure regulating structure 500 after a period of inhalation. In this embodiment, a driver can be installed in the main housing 100. When the user feels a change in the inhalation sensation after inhaling for a period of time, the user can press the driver to input activation information to the processor 810. The processor 810 then activates the air pressure regulating structure 500, or simultaneously activates the air pressure regulating structure 500 and the heating component 200, thereby adjusting the inhalation sensation.

[0088] In this application, during the intermittent suction process, the processor 810 activates the air pressure regulating structure 500. It should be noted that the suction interval refers to the time between each few inhalations of the aerosol-generated product 2 by the user, during which the aerosol-generated product 2 is not removed from the heating chamber 102. Specifically, during the intermittent suction process, because the heating chamber 102 is under negative pressure, external airflow and aerosol not inhaled in time will enter the airflow channel 101 through the air outlet 104, generating condensate in the airflow channel 101, which is difficult to clean. In this embodiment, by activating the air pressure regulating structure 500 during the suction interval, the air pressure regulating structure 500 accelerates the airflow rate, thereby reducing the return of external airflow and aerosol to the airflow channel 101, and thus reducing the generation of condensate in the airflow channel 101.

[0089] In this embodiment, since the aerosol-generating product 2 is not yet removed from the heating chamber 102 and the heating component 200 is not heating, it is only necessary to activate a suitable amount of airflow in the airflow channel 101 to prevent the aerosol from entering the airflow channel 101 downwards. Therefore, the power value of the pressure regulating structure 500 does not need to be too high. Specifically, when the power value of the pressure regulating structure 500 is segmented, a low or lower-middle power value can be selected, and the pressure regulating structure 500 only needs to be activated for 1-2 seconds.

[0090] In this application, after the aerosol generating device 1 has been used for a period of time, the air pressure regulating structure 500 can be activated to achieve the cleaning function.

[0091] For details, please refer to Figure 6 The aerosol generating device 1 also includes an information input structure 1100, which is communicatively connected to the processor 810. The information input structure 1100 inputs cleaning information to the processor 810, and the processor 810 controls the operation of the pressure regulating structure 500 or the heating component 200 based on the cleaning information. After repeated use of the aerosol generating device 1, a considerable amount of impurities and condensate remain in the airflow channel 101 and the heating chamber 102. At this time, the user can actively input cleaning information to the processor 810 through the information input structure 1100 based on the actual dirt level in the airflow channel 101 and the heating chamber 102. This allows the processor 810 to control the pressure regulating structure 500, which in turn drives the airflow to carry out the impurities and condensate from the airflow channel 101 and the heating chamber 102, achieving a cleaning effect. In addition, when a large amount of condensate accumulates, both the pressure regulating structure 500 and the heating component 200 can be activated according to the actual situation. The heating component 200 heats the condensate to vaporize it, and the pressure regulating structure 500 drives the airflow to carry out the impurities and condensate, thereby achieving a better cleaning effect.

[0092] In this embodiment, the power value and working time of the pressure regulating structure 500 can be selected according to the residual amount of condensate. Generally, the pressure regulating structure 500 works for 10-20 seconds, and the power value of the pressure regulating structure 500 is selected to be in the upper-middle range.

[0093] Furthermore, when the aerosol-generating product 2 is removed from the heating chamber 102, the processor activates the air pressure regulating structure 500. At this time, there is no aerosol-generating product 2 in the heating chamber 102, and the air pressure regulating structure 500 can be activated directly to carry out impurities and condensate from the airflow channel 101 and the heating chamber 102, thereby achieving a cleaning effect. When a large amount of condensate accumulates, both the air pressure regulating structure 500 and the heating component 200 can be activated according to the actual situation. The heating component 200 heats the condensate to vaporize it, and the air pressure regulating structure 500 drives the airflow to carry out impurities and condensate, thereby achieving a better cleaning effect.

[0094] Specifically, the aerosol-generated product 2 can be detected by using position sensors, displacement sensors, or distance sensors to determine whether it has been pulled out of the heating chamber 102.

[0095] In this application, the information input structure 1100 can take many forms.

[0096] As an example, the information input structure 1100 may include buttons. Pressing a button inputs cleaning information to the processor 810. When the cleaning information includes either activating the air pressure regulating structure 500 or activating both the air pressure regulating structure 500 and the heating component 200, two different buttons can be provided. Pressing one button activates the air pressure regulating structure 500; pressing the other button activates both the air pressure regulating structure 500 and the heating component 200 simultaneously. Furthermore, the main housing 100 has buttons at corresponding positions, and pressing these buttons outside the main housing 100 activates the buttons.

[0097] As an example, the information input structure 1100 may include a rotary driver that activates the air pressure regulating structure 500 when the rotary driver rotates to a first position, and activates both the air pressure regulating structure 500 and the heating assembly 200 when the rotary driver rotates to a second position. Alternatively, a knob may be installed on the main housing 100 to drive the rotary driver.

[0098] As an example, the information input structure 1100 may also include a touchscreen, allowing users to input cleaning information by touching the touchscreen.

[0099] As an example, the information input structure 1100 may also include a voice input module, through which the user can input processing information to the processor 810 by uttering voice commands.

[0100] In this application, the processor 810, memory 820 and power module 830 are all located on the circuit board 800.

[0101] On the other hand, this application also provides an airflow regulation method for an aerosol generating device 1. The aerosol generating device 1 includes an airflow channel 101 and a heating component 200 having a heating chamber 102. The heating chamber 102 is used for inserting the aerosol generating article 2 into it and heating the aerosol generating article 2. The airflow channel 101 passes through the heating chamber 102. The aerosol generating device 1 also includes a pressure regulating structure 500 and a processor 810. The pressure regulating structure 500 is used to regulate the air pressure in the airflow channel 101. The pressure regulating structure 500 is communicatively connected to the processor 810, and the heating component 200 is communicatively connected to the processor 810.

[0102] Please see Figure 7 The airflow regulation method includes the following steps:

[0103] S10: Obtain adjustment command;

[0104] S30: Generate adjustment intensity information based on the adjustment command;

[0105] S50: Control air pressure regulating structure 500 / heating component 200 executes regulation intensity information.

[0106] In the first embodiment, the airflow regulation method includes:

[0107] The air pressure value of the airflow channel 101 is obtained by the air pressure sensor 1200;

[0108] The power value of the pressure regulating structure 500 is generated based on the air pressure value of the airflow channel 101;

[0109] The control air pressure regulating structure 500 performs power regulation.

[0110] In the second embodiment, the airflow regulation method includes:

[0111] Obtain the heating duration of heating component 200;

[0112] The power value of the pressure regulating structure 500 is generated based on the heating duration of the heating component 200, wherein the power value of the pressure regulating structure 500 is positively correlated with the heating duration of the heating component 200.

[0113] The control air pressure regulating structure 500 performs power regulation.

[0114] The heating duration of the heating component 200 can be calculated by the timer 840 or the processor-integrated timer. The timer 840 is connected to the processor 810. The timer 840 calculates the heating duration of the heating component 200 in real time and feeds it back to the processor 810. The processor 810 controls the air pressure regulating structure 500 according to the heating duration of the heating component 200.

[0115] In the third embodiment, the airflow regulation method includes:

[0116] Obtain the heating duration of heating component 200;

[0117] The power value of the pressure regulating structure 500 and the heating temperature of the heating component 200 are generated based on the heating duration of the heating component 200. The power value of the pressure regulating structure 500 is positively correlated with the heating duration of the heating component 200, and the heating temperature of the heating component 200 is positively correlated with the heating duration of the heating component 200.

[0118] The control air pressure regulating structure 500 performs power regulation and the control heating component 200 performs temperature regulation.

[0119] In the fourth embodiment, the airflow regulation method includes:

[0120] Obtain the number of heating cycles of heating component 200;

[0121] The power value of the pressure regulating structure 500 is generated based on the number of heating cycles of the heating component 200, wherein the power value of the pressure regulating structure is positively correlated with the number of heating cycles of the heating component;

[0122] The control air pressure regulating structure 500 performs power regulation.

[0123] The heating number of the heating component 200 refers to the number of times it is heated within a certain period of time, which is also the number of times the heating component 200 is started.

[0124] In the fifth embodiment, the airflow adjustment method includes:

[0125] Obtain the number of heating cycles of heating component 200;

[0126] The power value of the pressure regulating structure 500 and the heating temperature of the heating component 200 are generated based on the number of heating cycles of the heating component 200. The power value of the pressure regulating structure 500 is positively correlated with the number of heating cycles of the heating component 200, and the heating temperature of the heating component 200 is also positively correlated with the number of heating cycles of the heating component 200.

[0127] The control air pressure regulating structure 500 performs power regulation and the control heating component 200 performs temperature regulation.

[0128] In the seventh embodiment, the airflow adjustment method includes:

[0129] During the aspiration interruption, an adjustment command is obtained;

[0130] The power value of the pressure regulating structure 500 is generated based on the number of suction interruptions;

[0131] The control air pressure regulating structure 500 performs power regulation.

[0132] The number of suction interruptions can be determined based on the number of times the heating component 200 is started.

[0133] In the seventh embodiment, the airflow adjustment method includes:

[0134] After the aerosol-generated product 2 is pulled out, an adjustment command is obtained;

[0135] The power value of the pressure regulating structure 500 is generated based on the number of suction interruptions;

[0136] The control air pressure regulating structure 500 performs power regulation.

[0137] Specifically, the aerosol-generated product 2 can be detected by using position sensors, displacement sensors, or distance sensors to determine whether it has been pulled out of the heating chamber 102.

[0138] In the eighth embodiment, the airflow regulation method includes:

[0139] Manually input adjustment commands;

[0140] The power value of the generating air pressure regulating structure 500 and the heating temperature of the heating component 200 are determined.

[0141] The control air pressure regulating structure 500 performs power regulation and the control heating component 200 performs temperature regulation.

[0142] Specifically, users can manually input adjustment commands when they feel a change in the smoking experience after smoking for a period of time.

[0143] On the other hand, this application also provides a storage medium storing a computer program, which, when executed by a processor, implements the above-described airflow regulation method.

[0144] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An aerosol generating device, characterized in that, The device has an airflow channel and a heating chamber. The heating chamber is used to insert an aerosol-generating product and heat the aerosol-generating product. The airflow channel passes through the heating chamber. The aerosol generating device also includes a pressure regulating structure and a circuit board. The pressure regulating structure is used to regulate the pressure in the airflow channel and is communicatively connected to the circuit board. The air pressure regulating structure is located between the air inlet of the airflow channel and the heating chamber; The air pressure regulating structure includes a fan; Alternatively, the pressure regulating structure may include a pressure pump; Alternatively, the pressure regulating structure may include a flow valve.

2. The aerosol generating apparatus as described in claim 1, characterized in that, The pressure regulating structure adjusts the pressure of the airflow channel by changing the airflow rate of the airflow channel; Alternatively, the pressure regulating structure can directly adjust the pressure of the airflow channel.

3. The aerosol generating apparatus as described in claim 1 or 2, characterized in that, The aerosol generating device further includes multiple air inlets, each of which connects the airflow channel to the external atmosphere; the cross-sectional area of ​​each air inlet is in the range of 1 mm². 2 -3mm 2 .

4. The aerosol generating apparatus as described in claim 1 or 2, characterized in that, The aerosol generating device further includes a heating component, the heating chamber is formed in the heating component, and the heating component is communicatively connected to the circuit board.

5. The aerosol generating apparatus as described in claim 4, characterized in that, The aerosol generating device includes a main housing, an upper support, and a lower support. The upper support and the lower support are respectively installed in the main housing and connected to the main housing. The two axial ends of the heating component are respectively connected to the upper support and the lower support. The airflow channel passes through the lower support, the heating component, and the upper support in sequence. The air pressure regulating structure is installed between the lower support and the main housing.

6. The aerosol generating apparatus as described in claim 5, characterized in that, The lower support includes a first connecting part, a throttling part, and a second connecting part connected sequentially along its axial direction. The inner diameter of the second connecting part and the inner diameter of the first connecting part are both larger than the inner diameter of the throttling part. The second connecting part is connected to the heating assembly, and the first connecting part is connected to the main housing. The air pressure regulating structure is installed between the first connecting part and the main housing.

7. The aerosol generating apparatus as described in claim 6, characterized in that, The main housing has multiple air inlets communicating with the airflow channel. A first flange protrudes from the inner surface of the bottom wall of the main housing. The first flange surrounds each air inlet and communicates with each air inlet. The first connecting part is axially connected to the first flange and forms a receiving cavity. The air pressure regulating structure is installed in the receiving cavity.

8. An aerosol generation system, characterized in that, Includes aerosol generating articles and aerosol generating apparatus as described in any one of claims 1 to 7.

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