Heat-not-burn device and electronic atomization apparatus

Abstract

A heat-not-burn device, comprising: a heating unit (100), wherein the heating unit (100) is provided with an accommodating cavity for loading an aerosol generating product, the heating unit (100) is configured to heat the aerosol generating product to generate an aerosol, and the heating unit (100) is provided with an air inlet (150) through which airflow enters the accommodating cavity; an airflow generation apparatus (300), wherein the airflow generation apparatus (300) is provided with an airflow generation port (410), and the airflow generation apparatus (300) is configured to generate airflow during operation so as to cause airflow in the aerosol generating product; and an airflow distribution assembly (200), wherein the airflow distribution assembly (200) is provided with a first communication portion (241), a second communication portion (242) and a third communication portion (243), the first communication portion (241) is in communication with the air inlet (150), the second communication portion (242) is in communication with the airflow generation port (410), and the third communication portion (243) is in external communication with the heat-not-burn device; and the second communication portion (242) and the third communication portion (243) both have a state of being in communication with the first communication portion (241).

Description

Heat-not-burn appliances and electronic atomization devices

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority from the following applications, the entire contents of which are incorporated herein by reference:

[0003] The application date is: November 16, 2023, the application number is: CN2023230967831, and the title is: A Chinese patent application for a heat-not-burn device and an electronic atomization device;

[0004] The application date is: November 16, 2023, the application number is: CN2023230967827, and the name is: Chinese patent application for an electronic atomization device and a heat-not-burn device;

[0005] The application date is November 16, 2023, the application number is CN2023230967795, and the title is: A Chinese patent application for an air chamber flow channel structure of a heat-not-burn device and an electronic atomization device;

[0006] The application date is: November 16, 2023, the application number is: CN2023230967761, and the name is: Chinese patent application for an electronic atomization device and its airflow channel structure;

[0007] The application date is: November 16, 2023, the application number is: CN2023230994561, and the name is: A Chinese patent application for an atomizing heating structure and a heating-without-combustion atomizer;

[0008] The application date is November 16, 2023, the application number is CN2023230909802, and the title is: A Chinese patent application for a gas path structure of a heat-not-burn device and an electronic atomizer;

[0009] The application date is: 2024.02.28, the application number is: CN202420379204X, and the name is: Chinese patent application for a heating without burning device. Technical Field

[0010] The present application relates to the field of electronic atomization devices. Background Art

[0011] The ingredients in aerosol-generating products are diverse, and after being atomized at high temperature, they will be released to form aerosols. When users inhale, they will feel the aerosols at a certain temperature.

[0012] A heat-not-burn atomizer generally includes an atomization and heating structure and a power supply structure, wherein the atomization and heating structure is used to heat and atomize the aerosol-generating product thereon, and the power supply structure is used to provide electrical energy and control to the atomization and heating structure.

[0013] Conventional heat-not-burn devices on the market need to preheat the aerosol-generating products when working. During the preheating process, a certain amount of water vapor and other substances will accumulate to form high-temperature atomizer, resulting in the aerosol being hot to the mouth when taking the first puff of the aerosol-generating product, affecting the user experience. Summary of the Invention

[0014] This application mainly solves the technical problem that the electronic atomizer device is hot when the puff is first started.

[0015] In a first aspect, the present application provides a heat-not-burn appliance.

[0016] Heat-not-burn appliances, including:

[0017] a heating unit, the heating unit being provided with a receiving cavity for receiving the aerosol-generating article, the heating unit being configured to heat the aerosol-generating article to generate an aerosol; the heating unit having an air inlet for supplying airflow into the receiving cavity;

[0018] an airflow generating device having an airflow generating port, the airflow generating device being configured to generate an airflow when in operation to generate a gas flow within the aerosol-generating article;

[0019] And an air flow distribution component, the air flow distribution component has a first connecting part, a second connecting part and a third connecting part, the first connecting part is connected to the air inlet, the second connecting part is connected to the air flow generating port, and the third connecting part is connected to the outside of the heating non-combustion appliance; the second connecting part and the third connecting part both have a connecting state with the first connecting part.

[0020] In a second aspect, the present application provides an electronic atomization device.

[0021] An electronic atomization device, comprising:

[0022] aerosol-generating products;

[0023] A heat-not-burn appliance, wherein the heat-not-burn appliance is the above-mentioned heat-not-burn appliance, and the aerosol-generating article is used to be inserted into the accommodating cavity on the heating unit.

[0024] Beneficial effects of this application:

[0025] According to the above-mentioned heating without burning device, the airflow generating port of the airflow generating device can generate gas flow in the aerosol generating product through the airflow distribution component. At the same time, through the airflow distribution component, the second connecting part has a connecting state connected to the first connecting part, which can transfer the high-temperature steam generated by the aerosol generating product out of the aerosol generating product, thereby solving the problem of the first puff being hot, and the third connecting part also has a connecting state connected to the first connecting part, which can meet the user's normal puffing needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] FIG1 is a schematic structural diagram of an embodiment of an electronic atomization device in the present application;

[0027] FIG2 is a schematic diagram of the internal structure of an embodiment of the heat-not-burn device of the present application, showing the aerosol-generating article and the heat-not-burn device in use;

[0028] Figure 3 is a front view of Figure 2;

[0029] FIG4 is a perspective sectional view taken along line AA of FIG3 , showing the airflow distribution assembly in a first state;

[0030] FIG5 is a schematic diagram of the airflow path (as indicated by arrows) when the airflow distribution assembly is in a first state and a second state respectively;

[0031] FIG6 is a schematic diagram of the matching relationship between the valve core and the valve body in the air flow distribution assembly;

[0032] FIG7 is a schematic diagram of the internal structure of an embodiment of an electronic atomization device;

[0033] FIG8 is a front view of a cross-sectional state of an embodiment of an electronic atomization device;

[0034] FIG9 is a partial perspective cross-sectional view of the air flow distributor in FIG8 , omitting the power module;

[0035] FIG10 is a perspective view of an air flow distributor;

[0036] FIG11 is a front view of the air flow distributor;

[0037] FIG12 is a schematic diagram of the main structure inside the housing of the electronic atomization device;

[0038] FIG13 is a cross-sectional view of FIG12;

[0039] FIG14 is an exploded view of the air flow distribution assembly in FIG12 ;

[0040] FIG15 is an isometric cross-sectional view of the air flow distribution assembly of FIG12;

[0041] FIG16 is a schematic diagram of some internal components of an embodiment of an electronic atomization device;

[0042] FIG17 is a cross-sectional view of components related to the airflow channel structure in FIG16;

[0043] FIG18 is an exploded view of the air flow distribution assembly in FIG16 ;

[0044] Figure 19 is a schematic diagram of the structure of the membrane flap;

[0045] FIG20 is a schematic cross-sectional view of a heating without burning device according to an embodiment;

[0046] FIG21 is a schematic diagram of the three-dimensional structure of a heating without burning device in one embodiment;

[0047] FIG22 is a schematic diagram of the three-dimensional structure of an air flow distribution assembly in one embodiment;

[0048] FIG23 is a schematic cross-sectional view of an air flow distribution assembly in one embodiment;

[0049] FIG24 is a schematic diagram of the three-dimensional structure of a base in one embodiment;

[0050] FIG25 is a schematic cross-sectional view of a base in one embodiment;

[0051] FIG26 is a schematic diagram of some components inside a heat-not-burn device according to an embodiment;

[0052] FIG27 is an exploded view of the assembly structure of the blocking piece in the air flow distribution chamber of FIG26;

[0053] FIG28 is a schematic diagram of the assembly structure of the blocking piece in FIG27;

[0054] FIG29 is a partial cross-sectional view of FIG26;

[0055] FIG30 is an exploded view of the assembly structure of a blocking piece in another embodiment of a heat-not-burn device;

[0056] FIG31 is a cross-sectional view of the assembled structure of the blocking piece in FIG30;

[0057] FIG32 is a schematic diagram of the internal structure of a heat-not-burn device and an aerosol-generating product in one embodiment;

[0058] FIG33 is a schematic diagram of the structure of a heat-not-burn device and an aerosol-generating product behind a hidden shell in one embodiment. DETAILED DESCRIPTION

[0059] The present application is further described in detail below by means of specific embodiments in conjunction with the accompanying drawings. Similar elements in different embodiments are numbered with associated similar elements. In the following embodiments, many detailed descriptions are provided to enable the present application to be better understood. However, those skilled in the art will readily appreciate that some of the features may be omitted in different circumstances, or may be replaced by other elements, materials, or methods. In some cases, some operations related to the present application are not shown or described in the specification. This is to avoid the core portion of the present application being overwhelmed by excessive descriptions. For those skilled in the art, it is not necessary to describe these related operations in detail. They can fully understand the related operations based on the description in the specification and the general technical knowledge in the art.

[0060] In addition, the features, operations, or characteristics described in the specification may be combined in any appropriate manner to form various embodiments. Furthermore, the steps or actions in the method description may be reordered or adjusted in a manner readily apparent to those skilled in the art. Therefore, the various sequences in the specification and drawings are provided solely for the purpose of clearly describing a particular embodiment and are not intended to be mandatory, unless otherwise specified.

[0061] The serial numbers assigned to components herein, such as "first," "second," etc., are used solely to distinguish the objects being described and do not convey any sequential or technical meaning. References to "connection" and "coupling" herein, unless otherwise specified, include both direct and indirect connections (couplings).

[0062] An embodiment of the heat-not-burn appliance may be referred to FIG. 1 to FIG. 6 .

[0063] The heat-not-burn appliance is provided with an airflow generating device, which can blow air in a forward direction to the aerosol-generating product through the air inlet of the heating unit, that is, blow air in the same direction as the inhalation airflow direction when the aerosol-generating product is inhaled, thereby actively discharging the high-temperature gas generated during preheating out of the heat-not-burn appliance, avoiding the user's mouth being burned during the initial inhalation.

[0064] In some embodiments, the heat-not-burn appliance is provided with an airflow distribution assembly, and through the first state and the second state of the airflow distribution assembly, the air inlet of the heating unit can be selectively connected to the airflow generating device, or connected to the outside of the heat-not-burn appliance, so that it can be connected to the atmosphere during use, thereby ensuring the user's subsequent normal inhalation.

[0065] In order to more clearly illustrate the specific embodiments and technical solutions of this application, the following corresponding embodiments are described using the top, bottom, left, and right directions indicated by the coordinates in the figures. Of course, the orientation limitations in the embodiments are only for the purpose of more clearly illustrating the positional relationships between the various components, and do not limit the specific embodiments and technical solutions of this application to being arranged in this manner.

[0066] The electronic atomization device in this application, as shown in Figure 1, can include an aerosol-generating product and a heat-not-burn device. The aerosol-generating product 600 is inserted into the receiving cavity of the heating unit 100. The aerosol-generating product can be an existing product, and the specific structural form is not limited. For example, it can often be in the form of a rod. The following mainly describes an embodiment of the heat-not-burn device.

[0067] Referring to Figures 2 to 5 , in some embodiments, a heat-not-burn device may include a heating unit 100, an airflow distribution assembly 200, an airflow generating device 300, a circuit board 400, and a power module 500. These components can be installed within a housing 800 (see Figure 1 ) to form a complete heat-not-burn device. To use the heat-not-burn device, an aerosol-generating article 600 is placed within the device and the device is switched on for inhalation.

[0068] The heating unit 100 is used to connect the aerosol generating product 600 and heat the aerosol generating product 600. In a specific embodiment, please refer to Figures 3 to 5. The heating unit 100 may include a protective shell 110, a heating element 120 and a fixing element 130. The protective shell 110 can protect the internal structure and block heat to prevent the shell of the heating unit 100 from being overheated. The heating element 120 is installed in the protective shell 110. The heating element 120 can be, for example, a heating plate with a cylindrical structure, or a heating wire wound around the outer periphery of the cylinder, or a thick film heating tube or a heating needle, a heating rod, a heating plate, etc., or an electromagnetic induction heating tube, an electromagnetic induction heating plate, an electromagnetic induction heating needle, etc. The above-mentioned cylindrical structure or cylinder forms a accommodating cavity, and the accommodating cavity is used to load the aerosol generating product 600. After the aerosol generating product 600 is inserted into the heat-not-burn device, it can contact the inner wall of the above-mentioned cylindrical structure or cylinder. At this time, the power module 500 supplies power to the heating plate or heating wire to heat the aerosol generating product inside the aerosol generating product 600 to generate atomizer.

[0069] The fixing element 130 is connected to the bottom end of the component protective shell 110, and is used to fix the heating unit 100 and form a connecting channel. Specifically, the top of the fixing element 130 is a flared structure, which is connected to the inner cavity of the heating element 120; the bottom diameter of the fixing element 130 is smaller than the top diameter, and is used to be plugged into the air flow distribution assembly 200. Please refer to Figure 4. The top end of the component protective shell 110 forms an insertion port 140 at the corresponding end of the heating unit 100, and the bottom end of the fixing element 130 forms an air inlet 150 at the other end of the heating unit 100. When the user inhales, external air can enter the heating unit 100 from the air inlet 150, carrying the aerosol formed when the aerosol generating product 600 is heated and enters the user's mouth through the inside of the aerosol generating product 600.

[0070] It should be noted that the heating unit 100 can adopt the existing structure in the prior art. The improvement of this application mainly lies in the air flow distribution component 200 and the air flow generating device 300 at the bottom of the heating unit 100. The air flow distribution component 200 and the air flow generating device 300 will be further explained below.

[0071] In one embodiment, the airflow distribution assembly 200 can be simply viewed as a three-way valve. Referring to FIG. 5 , the airflow distribution assembly 200 comprises a first connecting portion 241, a second connecting portion 242, and a third connecting portion 243. The first connecting portion 241 connects to the air inlet 150, while the third connecting portion 243 connects to the outside of the heat-not-burn appliance. The airflow distribution assembly 200 has a first state in which the first connecting portion 241 connects only to the second connecting portion 242, and a second state in which the first connecting portion 241 connects only to the third connecting portion 243. Furthermore, the airflow generating device 300 comprises an air blowing port 310 connected to the second connecting portion 242. The airflow generated by the airflow generating device 300 during operation can be delivered to the aerosol-generating article 600 via the second connecting portion 242, the first connecting portion 241, and the air inlet 150.

[0072] It should be noted that the specific structural form of the first connecting portion 241, the second connecting portion 242, and the third connecting portion 243 is not limited, as long as they can achieve communication with the corresponding components. For example, in one embodiment, at least one of the first connecting portion 241, the second connecting portion 242, and the third connecting portion 243 can be a concave plug hole, a convex plug connector, a flange connection, or a flat butt connection. Each connecting portion can use the same connection method or different connection methods.

[0073] Referring to Figures 4 and 5 , in a specific embodiment, the airflow distribution assembly 200 includes a valve body 210, which is provided with a first channel 211 and a second channel 212. The first channel 211 and the second channel 212 are both connected to a first connecting portion 241 at one end near the heating unit 100, and the other ends of the first channel 211 and the second channel 212 are respectively connected to a second connecting portion 242 and a third connecting portion 243. The provision of the first channel 211 and the second channel 212 facilitates the independent delivery of the blowing airflow generated by the airflow generating device 300 and the normal suction airflow, and facilitates control of the connection status.

[0074] In a specific embodiment, referring to Figures 4 and 5, a chute 230 is provided on the valve body 210, which traverses the first channel 211 and the second channel 212. The airflow distribution assembly 200 includes a movably arranged valve core 220, which is movably arranged within the chute 230. The valve core 220 has a handle that extends from the valve body 210 for user manipulation. Of course, to facilitate user operation, the handle on the valve core 220 can extend from the housing of the heat-not-burn appliance, or be located within the housing and a corresponding actuator can be provided within the housing. The actuator is connected to the circuit board 400 and can operate under the control of the circuit board 400. The chute 230 can be a straight groove, and accordingly, the valve core 220 can be a sheet-like structure, which is simple in structure and easy to process. To facilitate installation of the valve core 220, the valve body 210 can be split along the protruding direction of the handle of the valve core 220, into a main body and a cover. The cover is provided with a relief groove for the handle to extend. The relief groove's left-right dimensions are smaller than those of the chute 230, preventing the valve core 220 from escaping from the chute 230. The left and right ends of the chute 230 are respectively used to limit the travel of the valve core 220, corresponding to the first and second states, respectively. This provides precise limits on the movement of the valve core 220 and ensures the accuracy of the airflow distribution assembly 200. The left-right directions mentioned above also correspond to the arrangement direction of the second connecting portion 242 and the third connecting portion 243. It should be noted that those skilled in the art will appreciate that the valve core 220 in the airflow distribution assembly 200 should possess certain sealing properties. For example, in the above-mentioned embodiment, the thickness-directed surfaces of the valve core 220 should form a sealing relationship with the sidewalls of the chute 230 to meet the requirements of air path switching.

[0075] In order to achieve control of the airflow, in one embodiment, a first through hole 221 and a second through hole 222 are provided on the valve core 220; when the airflow distribution component 200 is in the first state, please refer to the upper figure of Figure 5, the first through hole 221 is on the extension path of the first channel 211, and the part of the valve core 220 located between the first through hole 221 and the second through hole 222 blocks the second channel 212, and the second through hole 222 is staggered with the second channel 212; please refer to the lower figure of Figure 5, when the airflow distribution component 200 is in the second state, the second through hole 222 is on the extension path of the second channel 212, and the part of the valve core 220 located between the first through hole 221 and the second through hole 222 blocks the first channel 211, and the first through hole 221 is staggered with the first channel 211. Compared with only setting a through hole on the valve core 220, the valve core 220 in the above embodiment can have a larger movement stroke, which is conducive to avoiding malfunction, and can achieve reliable control of the first channel 211 and the second channel 212, avoiding the control effect being affected by incomplete movement of the valve core 220.

[0076] By placing the airflow distribution assembly 200 in the first state and the second state, the second communication portion and the third communication portion can both be in communication with the first communication portion.

[0077] It should be noted that the second and third communication parts described in this application are both in a state of communication with the first communication part. This does not necessarily mean that the second and third communication parts must remain in communication with the first communication part. Instead, it means that the second and third communication parts can both communicate with the first communication part when needed, that is, the second and third communication parts can both communicate with the first communication part. In different embodiments, the first communication part can selectively communicate with the second and third communication parts. In some embodiments, when the airflow is generated, the second communication part can be in a state of communication with the first communication part; when the user inhales, the third communication part can be in a state of communication with the first communication part.

[0078] In order to facilitate smooth inhalation of the aerosol generating product 600, please refer to Figure 6. The second through hole 222 is a long hole, and the length direction of the long hole is perpendicular to the top and bottom directions and the left and right directions, which can achieve a larger cross-sectional area.

[0079] In the above embodiment, the distance between the first channel 211 and the second channel 212 at the chute 230 is smaller than the distance between the first through hole 221 and the second through hole 222. In a specific embodiment, the distance between the first channel 211 and the second channel 212 at the chute 230 may also be larger than the distance between the first through hole 221 and the second through hole 222, which is more suitable for larger airflow generating device 300.

[0080] In one embodiment, at least one of the first channel 211 and the second channel 212 includes two staggered sections 213. The staggered sections 213 are spaced apart along the arrangement direction of the first channel 211 and the second channel 212. The spacing between the channel openings of the first channel 211 and the second channel 212 at one end closer to the heating unit 100 is smaller than the spacing between the channel openings at the other end. Of course, a connecting section is provided between two adjacent staggered sections 213 to connect the two adjacent staggered sections 213.

[0081] With the above structure, the ends of the first and second channels 211, 212 closest to the heating unit 100 can simultaneously communicate with the first connecting portion 241, which helps reduce the connection size. The ends of the first and second channels 211, 212 further away from the heating unit 100 can be spaced further apart, facilitating the respective connection of the airflow generating device 300 and the main airway pipe 700, which leads to the exterior of the housing of the heat-not-burn appliance. Of course, in some other embodiments, both the first and second channels 211, 212 can be straight. Furthermore, in some other embodiments, the first and second channels 211, 212 can be arranged in an intersecting manner, with the intersection simultaneously communicating with the third channel, which leads to the first connecting portion 241 of the airflow distribution assembly 200.

[0082] The air flow distribution component 200 in the present application is not limited to the above-mentioned valve core structure. In some other embodiments, the air flow distribution component 200 can also control the connection status of the first connecting part 241, the second connecting part 242, and the third connecting part 243 in other forms. For example, the air flow distribution component 200 can adopt a rotary valve that realizes state switching by rotation, and whether it is a translational action or a rotational action, it can be manually operated by the user, or electrically operated by setting an actuator. For another example, the air flow distribution component 200 can also adopt a solenoid valve, such as a two-position three-way solenoid valve. In addition, in some other embodiments, an opening and closing structure can be respectively provided on the first channel 211 and the second channel 212, and the required switching function is achieved by the cooperation of one opening and one closing of the two opening and closing structures.

[0083] The airflow generating device 300 can form a blowing airflow, thereby discharging the inside of the aerosol generating product 600. The airflow generating device 300 can adopt any device that can meet the exhaust requirements, such as an air pump or a fan, which has mature technology and low cost. The above-mentioned airflow generating device 300 is connected to the circuit board 400 and can be started under the control of the circuit board 400. Specifically, after the heating non-combustion device is turned on, the heating element 120 in the heating unit 100 starts to heat. According to the control logic, after the heating element 120 is heated for a period of time, the circuit board 400 can control the airflow generating device 300 to start and generate a blowing airflow. It should be noted that the above-mentioned blowing airflow can achieve the discharge of the high-temperature gas generated by the aerosol generating product 600, and does not need to have a very high flow rate, which is conducive to ensuring the rapid preheating of the aerosol generating product and can save electricity.

[0084] When a user uses the heat-not-burn device, they insert the aerosol-generating product into the insertion opening 140 of the heating unit 100. The airflow distribution assembly 200 switches to the first state, connecting the first connecting portion 241 of the airflow distribution assembly 200 to the second connecting portion 242, and opening the blowing air path connected to the airflow generating device 300. At this point, the heat-not-burn device is turned on, the heating element 120 preheats the aerosol-generating product 600, and the airflow generating device 300, upon activation, generates a blowing airflow, which exhausts the high-temperature gas within the aerosol-generating product 600, preventing burns during the first puff. Since the suction air path connected to the third connecting portion 243 is closed, the airflow generated by the airflow generating device 300 is prevented from being discharged from the third connecting portion 243 to the external atmosphere, ensuring that the airflow generating device 300 effectively exhausts the aerosol-generating substrate.

[0085] After the blowing airflow is exhausted, the airflow distribution component 200 switches to the second state, and the first connecting part 241 of the airflow distribution component 200 is connected to the third connecting part 243. At this time, the blowing channel connected to the airflow generating device 300 is closed, and the blowing channel connected to the third connecting part 243 is opened. The outside air can smoothly enter the aerosol generating product 600, and the user can inhale the aerosol generating product 600 normally.

[0086] Another embodiment of the heat-not-burn appliance may be referred to FIG. 7 to FIG. 11 .

[0087] In some embodiments of the present application, the air flow holes of the insertion channel include edge holes, and the opening of the edge hole close to one end of the insertion channel is staggered with the axis of the insertion channel. Therefore, the airflow generated by the airflow generating device can more effectively deliver air to the position close to the outer peripheral surface of the aerosol generating product, thereby improving or avoiding the water vapor generated by preheating remaining on the radial outside due to the resistance of the matrix particles in the aerosol generating product, thereby improving or avoiding the problem of aerosol burning the mouth.

[0088] Please refer to Figures 7 to 9. The electronic atomization device may include a heat-not-burn device and an aerosol-generating product 700. The heat-not-burn device includes a housing 100, and also includes a baking component 200, an airflow distributor 300, an airflow generating device 400, a circuit board 500 and a power module 600. The above-mentioned baking component 200 and airflow distributor 300 are installed in the housing 100 to constitute the core of the device. When using the heat-not-burn device, the aerosol-generating product 700 is loaded into the heat-not-burn device, and the switch is turned on to start inhalation. It should be noted that in some other embodiments, the heating unit in the present application may also include other components.

[0089] The baking assembly 200 is used to connect to and heat the aerosol-generating article 700. In a specific embodiment, the baking assembly 200 is internally provided with a heating element. The heating element may be, for example, a cylindrical heating plate or a heating wire wrapped around the outer circumference of the cylinder, forming a circumferential heating structure. The central through-hole within the baking assembly 200 forms an insertion channel 210, into which the aerosol-generating article 700 is inserted. Once inserted into the heat-not-burn device, the aerosol-generating article 700 is heated by the baking assembly 200 to generate an aerosol. The above heating principle is prior art and will not be further described here.

[0090] In one embodiment, the front end of the air flow distributor 300 is arranged separately from the baking assembly 200, and the front end of the air flow distributor 300 is sealed and plugged into the bottom end of the baking assembly 200. Of course, in other embodiments, the air flow distributor 300 and the baking assembly 200 can also be formed integrally. The air flow distributor 300 includes a distributor body 310 and a diverter plate 320. The diverter plate 320 is disposed at one end of the distributor body 310 near the baking assembly 200. The diverter plate 320 is provided with air flow holes, which are used to face the end surface of the aerosol-generating article 700. The diverter plate 320 forms the bottom wall of the insertion channel 210. The diverter plate 320 and the distributor body 310 can be an integral structure or a separate structure. In other embodiments, the diverter plate 320 can also be replaced with other forms, such as providing a longer core at the front end of the air flow distributor 300 with holes opened in the core to form the air flow holes.

[0091] The insertion channel 210 has an axial direction that coincides with the insertion direction of the aerosol-generating article 700, and also has a radial direction perpendicular to the axial direction. An insertion opening is provided at one axial end of the insertion channel 210, and the aforementioned air flow holes are provided at the other end. Those skilled in the art will appreciate that the radial direction is any direction perpendicular to the axial direction.

[0092] It should be noted that the air flow hole can extend along the axial direction of the insertion channel 210, or can be arranged at an angle relative to the axial direction of the insertion channel 210, but the opening close to one end of the insertion channel should be staggered with the axis of the insertion channel to guide the direction of the airflow.

[0093] In one embodiment, the airflow generating device 400 is a blowing device capable of generating a blowing airflow. The device has an airflow generating port 410 that is connected to an airflow passage. The airflow generating port 410 is configured to generate an airflow during operation to generate gas flow within the aerosol-generating article 700, thereby discharging the gas within the aerosol-generating article 700. The airflow generating device 400 can be any device that meets the exhaust requirements, such as an air pump or fan, which is technologically mature and low-cost. The airflow generating device 400 is connected to the circuit board 500 and can be activated under the control of the circuit board 500. Specifically, after the heat-not-burn appliance is turned on, the heating element within the aerosol-generating substrate mounting component begins to heat. According to the control logic, after the heating element has heated for a period of time, the circuit board 500 can control the airflow generating device 400 to activate and generate the blowing airflow. It should be noted that the blowing airflow only needs to be able to discharge the high-temperature gas generated by the aerosol-generating article 700, and does not need to have a very high flow rate. This helps ensure rapid preheating of the aerosol-generating substrate and saves energy.

[0094] In one embodiment, a gas chamber 330 is provided within the distributor body 310 on a side of the manifold 320 away from the baking assembly 200. The gas chamber 330 is connected to the airflow generating port 410 of the blowing device. A suction port 340 is also provided within the gas chamber 330, forming a third connection portion that communicates with the exterior of the heat-not-burn appliance. The provision of the gas chamber 330 within the distributor body 310 facilitates connection with the airflow generating device 400. It also facilitates the provision of corresponding supporting structures, such as a membrane petal structure 360, at the suction port 340 for connecting the gas chamber 330 to the atmosphere and the air blowing connection port 350 for connecting to the blowing device. The membrane petal structure 360 ​​forms a cross-shaped gap between the petals. Normally, the cross-shaped gap is closed, but it can open when subjected to airflow directed toward the insertion channel 210. Referring to Figures 8 and 9, the petals of the membrane petal structure 360 ​​can be conical in shape. The membrane structure 360 ​​can protect the suction port 340 and the air blowing connection port 350 and prevent the airflow generated by the airflow generating device 400 from being discharged from the suction port 340 when the airflow generating device 400 is in operation. Of course, in other embodiments, the suction port 340 and the air blowing connection port 350 can also be directly open, and the airflow generating device 400 can use a larger airflow volume to prevent the airflow from being discharged from the suction port 340.

[0095] The heating-not-burning device adopts a circumferential heating method. When the matrix in the aerosol-generating product 700 is heated, the side of the aerosol-generating product 700 first heats up to generate water vapor. Due to the high temperature gradient, the water vapor will quickly diffuse to the center of the aerosol-generating product 700. A large amount of high-temperature water vapor will gather in the center of the aerosol-generating product 700. If the blowing airflow generated by the airflow generating device 400 enters the aerosol-generating product 700 evenly, the water vapor in the center of the aerosol-generating product 700 can be blown away. However, due to the resistance of the porous medium of the aerosol-generating product 700, some water vapor will remain in the aerosol-generating product 700 near the periphery, which may cause the gas to burn the mouth. In other embodiments, when the heating non-combustion device adopts a central heating method, for example, when a heating needle for inserting into the center of the aerosol generating product 700 is provided at the bottom of the insertion channel 210, since hot water vapor may still remain in the aerosol generating product 700 near the periphery, the exhaust effect can also be improved by the airflow diversion structure at the airflow hole in the present application.

[0096] To improve the above-mentioned problem, in one embodiment, the gas flow holes include a central hole 321 and edge holes 322. The central hole 321 is located near the central axis of the insertion channel, while the edge holes 322 are located around the central hole 321. The central hole 321 being located near the central axis of the insertion channel means that the central hole 321 is closer to the central axis of the insertion channel than the edge holes 322. In one specific embodiment, the central hole 321 can be coaxial with the axis of the insertion channel 210, while the edge holes 322 are arranged around the central hole 321. Of course, in other embodiments, the central hole 321 can also be offset from the central axis of the insertion channel. For example, the central hole 321 is also arranged around the central axis of the insertion channel, but its distribution circle diameter is smaller than the distribution circle diameter of the edge holes 322. In this way, the opening of the edge holes 322 near one end of the insertion channel 210 is offset from the axis of the insertion channel 210, thereby more effectively exhausting high-temperature gas near the periphery of the aerosol-generating article 700. In a specific embodiment, the edge holes 322 are evenly arranged around the axis of the insertion channel 210, which can achieve a more uniform exhaust effect. Referring to Figures 10 and 11, the air flow holes are composed of a central hole 321 and two or more edge holes 322. The diameter of the central hole 321 is larger than the diameter of the edge holes 322. This can better distribute the central air flow and the edge air flow, and is convenient for processing. It should be noted that the above-mentioned central hole 321 and edge holes 322 do not have to be circular holes. For example, they can also be elliptical holes, polygonal holes, etc. In addition, the number of edge holes 322 can be determined according to the size of each edge hole 322 and the diameter of the aerosol generating matrix. For example, as shown in Figures 10 and 11, there are eight edge holes 322.

[0097] In a specific embodiment, the diameter of the central hole 321 is at least 2.5 times the diameter of the edge holes 322. This facilitates the distribution of central and edge airflow. Of course, in other embodiments, the above-mentioned size ratios may be increased or decreased depending on factors such as the location and / or number of the central hole 321 and edge holes 322.

[0098] In one embodiment, a support structure is provided on one side of the air flow distributor 300 near the insertion channel 210. The support structure is used to create a gap between the bottom end surface of the aerosol-generating article 700 and the air flow distributor 300. The provision of such a gap can buffer the airflow entering through the air flow holes, thereby increasing the range of the airflow column formed by each air flow hole.

[0099] To create the aforementioned gap, in one specific embodiment, referring to Figures 8 and 9 , an annular step 311 is provided on the bottom inner wall of the insertion channel 210. The support structure includes the annular step 311, and a buffer cavity is formed on the heating unit between the annular step 311 and the airflow distributor 300. The buffer cavity forms the gap. The provision of the annular step 311 uniformly supports and positions the bottom end edge of the aerosol-generating article 700 and facilitates the formation of a uniform buffer cavity.

[0100] To prevent the annular step 311 from significantly obstructing the portion of the aerosol-generating article 700 near the outer circumference, the annular step 311 has a relatively narrow radial dimension. To reliably support the aerosol-generating article 700, support ribs 312 are provided between the end surface of the annular airflow distributor 300 on the side closest to the insertion channel 210 and the sidewall of the buffer cavity. The support structure includes support ribs 312. The number of support ribs 312 is not limited; they are preferably evenly distributed along the circumference. Referring to Figures 10 and 11, in one specific embodiment, four support ribs 312 are provided.

[0101] When a user uses the aforementioned heat-not-burn device, they insert the aerosol-generating substrate into the insertion port of the baking assembly 200. After turning on the switch of the heat-not-burn device, the heating element preheats the aerosol-generating product 700. Before the user draws inhalation, the airflow generating device 400 is activated to form a blowing airflow, which discharges the high-temperature gas in the aerosol-generating product 700 to avoid burning the mouth during the first puff. Because the airflow flow hole includes an edge hole 322, and the opening of the edge hole 322 at one end near the insertion channel 210 is offset from the axis of the insertion channel 210, the blowing airflow can better exhaust the area near the outer peripheral surface of the aerosol-generating product 700, thereby better ensuring the anti-scalding effect. When the user draws inhalation from the aerosol-generating product 700, outside air can smoothly enter the aerosol-generating product 700 through the suction port 340, achieving normal inhalation.

[0102] It should be noted that, in the above embodiment, the airflow generating device 400 is a blowing device, which is used to generate a blowing airflow during operation to generate gas flow in the aerosol generating product 700; however, in another specific embodiment, the airflow generating device 400 may also be an inhalation device, which is used to generate an inhalation airflow during operation to generate gas flow in the aerosol generating product 700. Due to the airflow distribution effect of the edge holes 322 of the air flow hole, it can also play a role in improving the airflow distribution in the aerosol generating product 700.

[0103] Another embodiment of the heat-not-burn appliance may be referred to FIG. 12 to FIG. 15 .

[0104] In some embodiments, the second connecting part is provided in the first chamber, and the third connecting part is provided in the second chamber. The first chamber and the second chamber are both connected to the first connecting part at one end close to the first connecting part, that is, the first chamber and the second chamber are connected only at the first connecting part. Therefore, the airflow of the second connecting part and the airflow of the third connecting part can form a certain isolation effect. The airflow generating device can act on the first connecting part more directly through the second connecting part and the first chamber, and then act on the aerosol generating product, reducing the airflow generating device from being connected to the outside of the heating non-combustion device through the second chamber and the third connecting part, thereby ensuring the effective driving of the high-temperature gas by the airflow generating device and improving the user's smoking experience.

[0105] Referring to Figures 12 and 13 , the electronic atomization device includes a heat-not-burn device and an aerosol-generating product 700. The heat-not-burn device includes a housing 100, a baking component 200, an airflow distribution assembly 300, an airflow generating device 400, a circuit board 500, and a power module 600. When using the heat-not-burn device, the aerosol-generating product 700 is placed in the heat-not-burn device and heated. At a certain temperature, the aerosol-generating product generates aerosol for the user to inhale.

[0106] The baking component 200 is used to connect the aerosol generating product 700 and heat the aerosol generating product 700. In a specific embodiment, a heating element is provided inside the baking component 200. The heating element can be, for example, a heating plate with a cylindrical structure, or a heating wire wound around the outer circumference of the cylinder, etc., to form a circumferential heating structure. The central through hole inside the baking component 200 is used to form an insertion channel 210. One end of the insertion channel 210 is provided with an insertion port, and the end of the insertion channel 210 facing away from the insertion port is provided with an air suction port. The insertion channel 210 is used for inserting the aerosol generating product 700. After the aerosol generating product 700 is inserted into the heat-not-burn device, it can be heated by the baking component 200 to generate an aerosol. The above heating principle is a prior art and will not be described in detail here.

[0107] In one embodiment, the air flow distribution assembly 300 and the baking component 200 are arranged separately, and the front end of the air flow distribution assembly 300 is sealed and inserted into the bottom end of the baking component 200 .

[0108] The airflow distribution assembly 300 comprises a first connecting portion 331, a second connecting portion 332, and a third connecting portion 333. The first connecting portion 331 is connected to the suction airflow port, and the third connecting portion 333 is connected to the exterior of the heat-not-burn appliance via a connecting tube 800. The inner cavity of the airflow distribution assembly 300 comprises a first chamber 341 and a second chamber 342. The second connecting portion 332 is disposed in the first chamber 341, and the third connecting portion 333 is disposed in the second chamber 342. The ends of the first and second chambers 341, 342 proximal to the first connecting portion 331 are both connected to the first connecting portion 331. The second connecting portion 332 is connected to the airflow generating device 400, which has an airflow generating port 410 connected to the second connecting portion 332. The airflow generating device 400 is configured to generate airflow during operation to generate gas flow within the aerosol-generating article 700. In a specific embodiment, the airflow generating device 400 is a blowing device, and the blowing port of the airflow generating device 400 is connected to the second connecting portion 332. The blowing device can be any device that can meet the exhaust requirements, such as an air pump or a fan, which has mature technology and low cost.

[0109] Considering the manufacturing of the airflow distribution assembly 300, in one embodiment, referring to Figures 13 to 15 , the airflow distribution assembly 300 includes a distributor body 310 and a plug 320. A first connecting portion 331 is provided at one end of the distributor body 310. The plug 320 seals the end of the distributor body 310 facing away from the first connecting portion 331. The second connecting portion 332 and the third connecting portion 333 are provided on the plug 320. A sealing ring may be provided on the outer circumference of the plug 320 to ensure sealing performance between the distributor body 310 and the plug 320. It should be noted that in some other embodiments, the distributor body 310 and the plug 320 may also be integrally formed.

[0110] In one embodiment, the plug 320 can be integrally formed of an elastic material, such as silicone. The plug 320 includes an end cap portion 321 and a partition portion 322. The partition portion 322 protrudes from the inner side of the end cap portion 321. The first chamber 341 and the second chamber 342 are separated by the partition portion 322, which forms a separator. To enhance the independence between the first chamber 341 and the second chamber 342 and reduce crosstalk between airflows, the partition portion 322 has side edges that conform to the inner wall shape of the airflow distribution assembly 300. During assembly, when the plug 320 is positioned toward the inner cavity of the distributor body 310, the two opposing sides of the partition portion 322 mate with the inner wall of the airflow distribution assembly 300, preventing airflow from passing through the opposing sides of the partition portion 322. A gap is formed between the top edge of the partition portion 322 and the airflow distribution plate provided at the front end of the distributor body 310, ensuring that both the first chamber 341 and the second chamber 342 can communicate with the first connecting portion 331. The airflow distribution plate is provided with through-holes for airflow to pass through. Of course, in one embodiment, the airflow distribution plate can be omitted. Furthermore, in some other embodiments, the partition member can be integrally formed with the end cap portion 321, or it can be independent of the end cap portion 321 and the partition portion 322 and assembled as a separate component within the end cap portion 321.

[0111] To ensure that the airflow generated by the airflow generating device 400 can more effectively act on the aerosol-generating article 700, in one embodiment, referring to Figures 13 to 15 , the airflow distribution assembly 300 includes a first inner extending tube 323 and a second inner extending tube 324. One end of the first inner extending tube 323 is connected to the second connecting portion 332 and the other end extends toward the first connecting portion 331. One end of the second inner extending tube 324 is connected to the third connecting portion 333 and the other end extends toward the first connecting portion 331. The provision of the inner extending tube can guide the airflow, bringing the corresponding vent closer to the aerosol-generating article 700 and concentrating the airflow. At the same time, both the first chamber 341 and the second chamber 342 can play a buffering role. For example, when the user normally inhales the aerosol generating product 700, the inhalation airflow theoretically only needs to pass through the first chamber 341 and the third connecting part 333. However, since the second chamber 342 is also connected to the inhalation airflow port on the baking component 200, it will also affect the airflow generating device 400 connected to the first chamber 341. Since the first chamber 341 can form a buffer space, it can slow down the impact of inhalation on the airflow generating device 400.

[0112] Furthermore, in one embodiment, the inner wall of the first chamber 341 is tapered at one end near the first connecting portion 331, forming a constricted structure on the side where the first chamber 341 connects to the first connecting portion 331. This constricted structure can further concentrate the airflow. Additionally, the outer peripheral surface of the second chamber 342, near the end of the first connecting portion 331, comprises a constricted portion 312 with a reduced radial dimension. The wall of the second chamber 342 on the side facing away from the first chamber 341 is formed by the constricted portion 312. The constricted portion 312 can form a constricted structure with a smaller flow area, thereby better preventing the second chamber 342 from being affected by the airflow generated by the airflow generating device 400.

[0113] In one specific embodiment, the distance between the first inner extending tube 323 and the second inner extending tube 324 and the first connecting portion 331 is less than the distance between the partition and the first connecting portion 331. Thus, the airflow generated by the airflow generating device 400 must first pass through the front end of the second chamber 342 before affecting the opening of the second inner extending tube 324. This ensures that the airflow generating device 400 acts more effectively on the aerosol generating article 700 rather than on the third connecting portion 333, which is connected to the atmosphere.

[0114] To better minimize the impact of the airflow generating device 400 on the third connecting portion 333, the boundary between the first chamber 341 and the second chamber 342 is offset from the side of the airflow distribution assembly 300 closer to the second chamber 342. The cross-sectional area of ​​the passage from the second chamber 342 to the first connecting portion 331 is smaller than the cross-sectional area of ​​the passage from the first chamber 341 to the first connecting portion 331. This structure allows the first chamber 341 to create a larger buffer space, while the front end of the second chamber 342 creates a greater flow resistance, thereby achieving better airflow distribution.

[0115] Please refer to Figures 13 to 15. In one embodiment, the front ends of the first inner extending tube body 323 and the second inner extending tube body 324 are both provided with a flap structure 325. A cross gap is formed between the flaps of the flap structure 325. The cross gap is closed under normal conditions and can be opened when subjected to the airflow toward the insertion channel 210. Please refer to Figures 13 to 15. The flaps of the flap structure 325 can be arranged in a conical shape. The provision of the flap structure 325 can protect the second connecting portion 332 and the third connecting portion 333, and can further prevent the airflow generated by the airflow generating device 400 from being discharged from the second connecting portion 332 when it is working. Of course, in other embodiments, the second connecting portion 332 and the third connecting portion 333 can also be directly opened, and the airflow generating device 400 can use a larger airflow volume to compensate for the airflow discharged from the third connecting portion 333.

[0116] When a user uses the aforementioned heat-not-burn device, they insert the aerosol-generating substrate into the insertion opening of the baking component 200. After turning on the heat-not-burn device, the heating element preheats the aerosol-generating product 700. Before the user draws, the airflow generating device 400 activates, generating a blowing airflow that expels the high-temperature gas within the aerosol-generating product 700, thereby preventing mouth burns during the first puff. Because the airflow distribution assembly 300 includes the aforementioned first chamber 341 and second chamber 342, the blowing airflow generated by the airflow generating device 400 is less likely to be easily discharged into the atmosphere through the third connecting portion 333, thereby better affecting the aerosol-generating product 700 and achieving a better burn-proof effect.

[0117] It should be noted that, in the above embodiment, the airflow generating device 400 is a blowing device, which is used to generate a blowing airflow during operation to generate a gas flow in the aerosol generating product 700; however, in another specific embodiment, the airflow generating device 400 may also be an inhalation device, which is used to generate an inhalation airflow during operation to generate a reverse gas flow in the aerosol generating product 700.

[0118] Another embodiment of the heat-not-burn appliance may be referred to FIG. 16 to FIG. 19 .

[0119] In some embodiments, the second connecting portion 332 can be provided with an opening adjustment structure, which can adjust the opening size of the second connecting portion 332. When the airflow generating device 400 is not working, the opening of the second connecting portion 332 can be reduced or closed through the opening adjustment structure, thereby blocking the liquid-containing atomized material or other foreign matter (such as the aerosol matrix in the aerosol generating product 700) generated by the aerosol generating product 700 when the airflow generating device 400 is not working from entering the airflow generating device 400, improving or avoiding the pollution and blockage problems caused thereby, and ensuring the normal operation of the electronic atomization device.

[0120] Referring to FIG16 , in one embodiment, an electronic atomization device includes a heat-not-burn device and an aerosol-generating product 700. Referring to FIG16 and FIG17 , the heat-not-burn device includes a housing 100, a baking component 200, an airflow distributor 300, an airflow generating device 400, a circuit board 500, and a power module (not shown). The inner cavity of the airflow distributor 300 is used to form an airflow distribution assembly. When using the heat-not-burn device, the aerosol-generating product 700 is loaded into the heat-not-burn device for heating. The aerosol-generating product 700 generates aerosol at a certain temperature for the user to inhale.

[0121] The baking component 200 is used to connect the aerosol generating product 700 and heat the aerosol generating product 700. In a specific embodiment, a heating element is provided inside the baking component 200. The heating element can be, for example, a heating plate with a cylindrical structure, or a heating wire wound around the outer circumference of the cylinder, etc., to form a circumferential heating structure. The central through hole inside the baking component 200 is used to form an insertion channel 210. One end of the insertion channel 210 is provided with an insertion port, and the end of the insertion channel 210 facing away from the insertion port is provided with an air suction port. The insertion channel 210 is used for inserting the aerosol generating product 700. After the aerosol generating product 700 is inserted into the heat-not-burn device, it can be heated by the baking component 200 to generate an aerosol. The above heating principle is a prior art and will not be described in detail here.

[0122] In one embodiment, the air flow distributor 300 and the baking component 200 are arranged separately, and the front end of the air flow distributor 300 is sealed and inserted into the bottom end of the baking component 200 .

[0123] Considering the manufacturing of the airflow distributor 300, in one embodiment, referring to Figures 16 to 18, the airflow distributor 300 includes a distributor body 310 and a plug 320. A first connecting portion 331 is provided at one end of the distributor body 310, and the plug 320 is sealed at the end of the distributor body 310 facing away from the first connecting portion 331. The second connecting portion 332 and the third connecting portion 333 are provided on the plug 320. A sealing ring may be provided on the outer circumferential surface of the plug 320 to ensure sealing performance between the distributor body 310 and the plug 320. It should be noted that in some other embodiments, the distributor body 310 and the plug 320 may also be integrally formed.

[0124] The inner cavity enclosed by the dispenser body 310 and the plug 320 constitutes an airflow distribution assembly, which includes a first connecting portion 331, a second connecting portion 332, and a third connecting portion 333. The first connecting portion 331 communicates with the suction airflow port at the inner end of the insertion channel 210, while the third connecting portion 333 communicates with the exterior of the heat-not-burn appliance via a connecting tube 600. The second connecting portion 332 communicates with an airflow generating device 400, which is a blowing device having an airflow generating port 410 that communicates with the second connecting portion 332. The airflow generating device 400 is used to generate airflow during operation to generate gas flow within the aerosol-generating article 700. The blowing device can be any device that meets exhaust requirements, such as an air pump or fan, which is a mature and low-cost technology.

[0125] In order to solve the problem of protecting the airflow generating device 400 , an opening adjustment structure is provided on the second connecting portion 332 to adjust the opening size of the second connecting portion 332 .

[0126] In one embodiment, referring to Figures 17 to 19 , the airflow distributor 300 includes a first inner extending tube 323 and a second inner extending tube 324, with opening adjustment structures disposed at the top ends of the respective inner extending tubes. Specifically, the first inner extending tube 323 and the second inner extending tube 324 can both be disposed on the plug 320, with one end of the first inner extending tube 323 connected to the second connecting portion 332 and the other end extending toward the first connecting portion 331. The second inner extending tube 324 can have one end connected to the third connecting portion 333 and the other end extending toward the first connecting portion 331. A movable valve flap 325 is provided at the front end of each of the first inner extending tube 323 and the second inner extending tube 324. The first inner extending tube 323 and the second inner extending tube 324 are made of a flexible material. The movable valve flap 325 can be integrally formed with the first inner extending tube 323 and the second inner extending tube 324. The movable valve flap 325 is formed in the form of a flexible membrane with a slit 326 extending through the membrane thickness. The slit 326 divides the flexible membrane to form the movable valve flap 325. The movable valve flap 325, due to its material flexibility, deflects when subjected to force, thereby forming an opening adjustment structure.

[0127] In one embodiment, the movable valve flaps 325 can be distributed along a circumference, with the movable valve flaps 325 having a natural state and a stressed state. In the natural state, free from external forces, the movable valve flaps 325 are closed or have a first opening, and when pushed by airflow toward the insertion channel 210, they have a second opening, where the second opening is greater than the first opening. In one specific embodiment, a cross-slit 326 is formed between the movable valve flaps 325. Under normal conditions, the cross-slit 326 is closed, but can open when acted upon by airflow toward the insertion channel 210. Referring to Figures 18 and 19, in one embodiment, the movable valve flaps 325 are arranged at an angle relative to the ventilation direction of the second connecting portion 332. The inclined movable valve flaps 325 form a tapered structure, with the small end of the tapered structure facing the insertion channel 210. This facilitates the opening of the movable valve flaps 325, achieving a larger opening, and preventing the accumulation of foreign matter. Of course, in other embodiments, the movable valve flaps 325 can also have a planar structure.

[0128] The movable valve flap 325 protects the second and third connecting portions 332 and 333, while the inner extension tube elevates the opening formed by the second connecting portion 332, further preventing the ingress of liquids and foreign matter. Furthermore, the movable valve flap 325 prevents the airflow generated by the airflow generating device 400 from being discharged from the second connecting portion 332 during operation, allowing the airflow generated by the airflow generating device 400 to be more concentrated on discharging relatively hot water vapor from the aerosol-generating article 700. The inner extension tube guides the airflow, bringing the corresponding connecting portion closer to the aerosol-generating article 700 and concentrating the airflow. This helps ensure that the airflow generated by the airflow generating device 400 more effectively acts on the aerosol-generating article 700.

[0129] It should be noted that in other embodiments, the number of movable valve flaps 325 may be increased or decreased, for example, providing two valve flaps, three valve flaps, or five or more valve flaps. Furthermore, in other embodiments, the movable valve flap 325 may be a rigid structure, in which case the bottom end of the movable valve flap 325 may be hinged, and the movable valve flap 325 may swing along the hinge axis to adjust the opening. Furthermore, in other embodiments, the aforementioned inner extension tube may be omitted, and the opening adjustment structure may be directly provided at the opening of the second connecting portion 332, either within the airflow distribution assembly or outside the airflow distribution assembly, and located outside the air outlet of the airflow generating device 400.

[0130] In the above embodiment, the third connecting portion 333 for communicating with the outside of the heat-not-burn appliance is also provided with an opening adjustment structure. However, since the third connecting portion 333 can directly communicate with the outside of the heat-not-burn appliance, malfunctions are less likely to occur even in the presence of atomized matter and impurities. Therefore, the opening adjustment structure of the third connecting portion 333 is not required.

[0131] In the above embodiment, the movable valve flap 325 is opened by airflow. In some other embodiments, the opening adjustment structure is a mechanical valve structure, such as a butterfly valve structure. The mechanical valve structure can be provided with an operating portion extending from the outside of the housing 100, and the user can control the opening and closing or the size of the opening of the opening adjustment structure through the operating portion. In some other embodiments, the opening adjustment structure can also include an electrically controlled actuator and a valve core. The electrically controlled actuator is used to connect to the controller, and the valve core is used to adjust the size of the opening of the second connecting portion 332 under the control of the electrically controlled actuator. For example, the electrically controlled actuator can be a motor, the output shaft of the motor is provided with a gear, and the valve core can be provided with an adapter tooth, and the opening is adjusted by rotation under the drive of the motor. The provision of an electrically controlled actuator facilitates the realization of automated control, thereby ensuring that the airflow generating device 400 controls the operation of the opening adjustment structure when it stops working, thereby better protecting the airflow generating device 400.

[0132] It should be noted that in other embodiments, when the heating non-combustion device adopts a central heating method, for example, when a heating needle for inserting into the center of the aerosol generating product 700 is provided at the bottom of the insertion channel 210, since relatively hot water vapor will also be generated, exhaust can also be performed through the airflow generating device 400 in the present application, and the above-mentioned opening adjustment structure can be used to protect the airflow generating device 400.

[0133] When a user uses the aforementioned heat-not-burn device, they insert the aerosol-generating product 700 into the insertion port of the baking component 200. After turning on the heat-not-burn device, the heating element preheats the aerosol-generating product 700. Before the user draws, the airflow generating device 400 is activated to form a blowing airflow, which discharges the high-temperature gas in the aerosol-generating product 700 and avoids burning the mouth during the first puff. After the airflow generating device 400 is closed, the opening adjustment structure is manually / automatically closed or adjusted to a smaller opening, protecting the airflow generating device 400. This helps prevent the airflow generating device 400 from being contaminated by liquid-containing atomized matter or from being blocked or stuck by foreign matter, thereby ensuring the reliable operation of the electronic atomization device and achieving a better user experience.

[0134] Another embodiment of the heat-not-burn appliance may be referred to FIG. 20 to FIG. 25 .

[0135] A heating-without-combustion appliance provided in one embodiment includes: a heating unit 10 , a base 20 , an airflow distribution assembly 30 , and an airflow generator 40 .

[0136] The heating unit 10 is used to atomize and heat the aerosol-generating product 50. The base 20 is provided at one end of the heating unit 10. The airflow distribution assembly 30 is connected to the end of the base 20 away from the heating unit 10. The airflow distribution assembly 30 includes an airway switching body 31, a first airway tube 32, and a second airway tube 33. The first airway tube 32 and the second airway tube 33 are both fixed to an end surface of the airway switching body 31 facing the heating unit 10. A first one-way valve 321 is provided at the end of the first airway tube 32 facing the heating unit 10, and a second one-way valve 331 is provided at the end of the second airway tube 33 facing the heating unit 10. The first one-way valve 321 and the second one-way valve 331 both have two working states: open and closed. The air outlet of the airflow generator 40 is connected to the second airway tube 33.

[0137] In the heat-not-burn device of the above embodiment, the airflow distribution assembly 30 provides a first airway tube 32 and a second airway tube 33. The end of the first airway tube 32 facing the heating unit 10 is provided with a first one-way valve 321, and the end of the second airway tube 33 facing the heating unit 10 is provided with a second one-way valve 331. Both the first one-way valve 321 and the second one-way valve 331 have two operating states: open and closed. The second airway tube 33 is connected to the air outlet of the airflow generator 40. Thus, when the airflow generator 40 is activated, it provides airflow at a certain flow rate, which can open the second one-way valve 331. After the second one-way valve 331 opens, the airflow continues to flow toward the heating unit 10, blowing out vaporized water molecules within the aerosol-generating product 50, reducing the water molecule content within the aerosol-generating product 50 and thereby resolving the mouth-scalding problem. When the user inhales the aerosol generating product 50 , a certain pressure difference is generated on both sides of the first one-way valve 321 in the heat-not-burn device, and the valve is in an open state, so that the user can smoothly inhale the aerosol generating product 50 .

[0138] Specifically, the heating-without-combustion device has a preheating mode and an atomization mode. In the preheating mode, the airflow generator 40 is started and provides an airflow of a preset flow rate to the second airway tube 33. The second one-way valve 331 is in an open state and the first one-way valve 321 is in a closed state. In the atomization mode, the airflow generator 40 stops working, the second one-way valve 331 is in a closed state, and under the action of the suction force, the first one-way valve 321 is in an open state. As shown in Figure 20, the heating unit 10 is tubular, and a storage cavity is formed in the heating unit 10. The storage cavity is used for plugging the aerosol generating product 50. The heating unit 10 contacts the outer periphery of the aerosol generating product 50 to perform atomization heating on the outer periphery of the aerosol generating product 50. The airflow generator 40, for example, is a booster air pump, and the airflow of the preset flow rate generated can be set according to actual needs, and this application does not limit it.

[0139] The heat-not-burn device of the aforementioned embodiment designed in this application can provide a first airway tube 32 and a second airway tube 33 via an airflow distribution assembly 30. The first airway tube 32 is used in atomization mode, and the second airway tube 33 is used in preheating mode. In preheating mode, the designed airflow generator 40 can provide airflow at a preset flow rate to open the second one-way valve 331. After the second one-way valve 331 opens, the airflow at the preset flow rate continues to flow toward the heating unit 10, blowing out vaporized water molecules within the aerosol-generating article 50. This reduces the water molecule content within the aerosol-generating article 50 when the atomization mode is subsequently used, thereby resolving the mouth-scalding problem. The second one-way valve 331 on the second airway tube 33 is forced open when the airflow generator 40 is activated, while the first one-way valve 321 on the first airway tube 32 is opened by the suction force in atomization mode. This effectively ensures that only the second one-way valve 331 is open in the preheating mode, preventing the simultaneous outflow of air from the first airway tube 32 from disturbing the flow rate of gas flowing into the aerosol-generating article 50. Alternatively, it effectively ensures that only the first one-way valve 321 is open in the atomization mode, preventing the atomized gas generated by the aerosol-generating article 50 from passing through the second one-way valve 331 and entering the airflow generator 40, causing condensation and unnecessary damage to the airflow generator 40. The first one-way valve 321 and the second one-way valve 331 work together to effectively ensure the flow rate flowing into the aerosol-generating article 50 in the preheating mode, or to protect the airflow generator 40 in the atomization mode.

[0140] As shown in Figures 20, 22, and 23, the axial length of the first airway tube 32 is shorter than the axial length of the second airway tube 33. The bottom ends of the first airway tube 32 and the second airway tube 33 are both fixed to the end surface of the airway switching body 31 facing the heating unit 10. Therefore, when the axial length of the first airway tube 32 is shorter than the axial length of the second airway tube 33, the top ends of the first airway tube 32 and the second airway tube 33 are spaced or staggered in the axial direction. For example, as shown in Figure 20, a spacing H is present between the top ends of the first airway tube 32 and the second airway tube 33. When the axial length of the first airway tube 32 is shorter than the axial length of the second airway tube 33, taking Figure 20 as an example, in preheating mode, the airflow generator 40 is activated to generate a preset airflow rate to open the second one-way valve 331. In addition to a large portion of the airflow flowing out of the second one-way valve 331 toward the aerosol-generating article 50 in the heating unit 10, the airflow can also flow toward the first one-way valve 321. Due to the difference in axial length between the first and second airway tubes 32, 33, and the fact that the air pressure inside the base 20 is greater than the atmospheric pressure outside, the airflow from the second one-way valve 331 exerts a certain amount of pressure on the first one-way valve 321 as it flows toward the first one-way valve 321. This allows the first one-way valve 321 to close more tightly in preheating mode, effectively preventing air leakage from the first one-way valve 321 during preheating mode. If the axial length of the first airway tube 32 were greater than or equal to the axial length of the second airway tube 33, the pressure of the airflow from the second one-way valve 331 flowing toward the first one-way valve 321 during preheating mode could not be guaranteed. In this case, the first one-way valve 321's inherent structure would be the only means of ensuring its closure in preheating mode.

[0141] As shown in FIGS. 24-25, preferably, the side of the base 20 facing the air flow distribution component 30 is a cylindrical structure, and the cylindrical structure has two cylinders with different axial lengths along the axis of the air flow distribution component 30. The first air duct 32 is located in the cylinder with a relatively smaller axial length, and the second air duct 33 is located in the cylinder with a relatively larger axial length. Taking FIG. 24 as an example, the base 20 of the cylindrical structure includes two cylinders with different axial lengths distributed left and right. The axial length of the left cylinder is L1, and the axial length of the right cylinder is L2, where L1 < L2. The first air duct 32 is correspondingly placed in the left cylinder, and the second air duct 33 is correspondingly placed in the right cylinder. When the base 20 of the cylindrical structure has two cylinders with different axial lengths along the axis of the air flow distribution component 30, the space between the top of the first air duct 32 and the corresponding cylinder surface can be shortened. Thus, in the preheating mode, the space that the air flow flowing from the side of the second one-way valve 331 to the side of the first one-way valve 321 needs to pass through can be reduced, thereby ensuring the pressure effect generated when the air flow flowing out of the second one-way valve 331 flows to the first one-way valve 321. The radial dimensions of the two cylinders with different axial lengths can be the same or different. For example, in the embodiment of the present application, the radial dimensions of the two cylinders with different axial lengths are the same, which is convenient for the production and processing of the heated non-combustible appliance.

[0142] As shown in FIGS. 22-23, the first one-way valve 321 and / or the second one-way valve 331 is a petal-shaped structure. The petal-shaped structure includes a plurality of valve body units distributed circumferentially, and the plurality of valve body units enclose to form a conical petal-shaped structure. When the petal-shaped structure is stressed, the plurality of valve body units open in a petal shape. When the petal-shaped structure is not stressed, the plurality of valve body units restore to the conical shape through their own elasticity. In the preheating mode, the petal-shaped structure is stressed by the air flow generator 40 to generate an air flow with a preset flow rate. In the atomization mode, the petal-shaped structure is stressed by the air pressure difference generated on both sides of the petal-shaped structure by the user's suction action. When the petal-shaped structure is not under external force, it can restore to the closed conical shape through its own elasticity. For example, the one-way valve of the petal-shaped structure is made of silica gel. When the petal-shaped structure is stressed, the plurality of valve body units on it open in a petal shape, but at this time, the petal-shaped structure stores a certain amount of elastic potential energy based on its own material properties. When the petal-shaped structure is not stressed, the stored elastic potential energy is released to assist the petal-shaped structure to restore from the petal shape to the conical shape. The conical shape can specifically be a pyramid shape, a cone shape, or even a frustum shape. In other embodiments, the one-way valve may also include a valve body and a valve cover, and the valve cover and the valve body are rotatably connected or hinged. When stressed, the valve cover is in an open state, and when not stressed, the valve cover restores to the closed state. However, the one-way valve with this structure is not firm during the closing action and has relatively low reliability. Therefore, in the embodiment of the present application, specifically, both the first one-way valve 321 and the second one-way valve 331 are petal-shaped structures.

[0143] Among them, the petal-shaped structure includes at least three valve body units to ensure the corresponding opening and closing effect of the one-way valve. When the first one-way valve 321 and the second one-way valve 331 are both petal-shaped structures, the number of valve body units thereon can be the same or different. For example, the power effect applied by the airflow generator 40 to the second one-way valve 331 is better than the power effect provided by the suction effect to the first one-way valve 321. Under the premise that the radial dimensions of the first one-way valve 321 and the second one-way valve 331 are the same and the axial heights are the same, the number of valve body units on the first one-way valve 321 can be greater than the number of valve bodies on the second one-way valve 331, so that the first one-way valve 321 can be easily opened when subjected to force. Taking the second one-way valve 331 with a petal-shaped structure as an example, in actual use, in order to ensure the effect of the second one-way valve 331 when it returns to a closed state, the thickness of the valve body unit can be appropriately increased to achieve this, so that the second one-way valve 331 can generate a stronger elastic force when it returns to a closed state, but correspondingly, the second one-way valve 331 also requires stronger power when it is opened. At this time, the output power of the airflow generator 40 can be enhanced as needed, and the specific choice can be flexibly made based on the actual situation. No specific restrictions are made in this application.

[0144] As shown in Figures 22 and 23, an annular groove 311 is provided at one end of the airway switching body 31 facing the heating unit 10, and the end of the base 20 is sleeved in the annular groove 311. The airway switching body 31 is a block structure or a plate structure. An annular groove 311 is provided at one end of the airway switching body 31 facing the heating unit 10, which can effectively increase the contact area between the base 20 and the airway switching body 31. On the one hand, it is convenient to achieve a fixed connection between the base 20 and the airway switching body 31. On the other hand, it is convenient to ensure the sealing of the connection between the base 20 and the airway switching body 31 and the airtightness of the internal space of the base 20. In other embodiments, the inner wall of the base 20 and the outer wall of the airflow distribution assembly 30 can be sleeved, or the outer wall of the base 20 and the inner wall of the airflow distribution assembly 30 can be sleeved.

[0145] As shown in FIG25 , in an embodiment of the present application, a partition 21 is provided in the base 20. The partition 21 divides the space in the base 20 into a first cavity 22 and a second cavity 23 along the axial direction. The first cavity 22 is located on the side close to the heating unit 10, and the second cavity 23 is located on the side away from the heating unit 10. The first airway tube 32 and the second airway tube 33 on the airflow distribution component 30 are located in the second cavity 23 of the base 20. Correspondingly, the base 20 formed with the second cavity 23 has two cylinders of different axial lengths along the axial direction of the airflow distribution component 30. At least one vent 211 is provided on the partition 21. The partition 21 can shield and protect the components on the side of the base 20 away from the heating unit 10. The vent 211 on the partition 21 can ensure that the airflow in the second cavity 23 can flow toward the heating unit 10. Specifically, to ensure that the airflow in the second cavity 23 flows quickly and smoothly toward the heating unit 10, a plurality of evenly distributed vent holes 211 are provided on the partition 21. For example, as shown in FIG25 , a plurality of evenly distributed vent holes 211 are provided in the center and circumference of the partition 21.

[0146] As shown in Figures 20-21, the heat-not-burn appliance further includes an air inlet pipe 60 and a sleeve 70. The air inlet pipe 60 is connected to the first airway pipe 32. For example, the air inlet pipe 60 and the first airway pipe 32 are connected at the end away from the heating unit 10. The end of the air inlet pipe 60 away from the heating unit 10 is connected to the air inlet, and is used to deliver airflow to the heating unit 10 through the air inlet and the air inlet pipe 60 in the atomization mode. The sleeve 70 is sleeved on the outside of the heating unit 10. Through the sleeve 70, on the one hand, it isolates and protects the heating unit 10 therein, and on the other hand, it ensures the heating environment of the heating unit 10.

[0147] When using the heat-not-burn device of the embodiment designed in the present application, the preheating mode is first activated to discharge the vaporized water vapor in the aerosol-generating article 50, and then the atomization mode is activated to begin inhaling the aerosol-generating article 50. In the preheating mode, the heating unit 10 is first activated to preheat the aerosol-generating article 50 thereon, so that the water molecules in the aerosol-generating article 50 are fully vaporized into water vapor. After the heating unit 10 has operated for a period of time (e.g., 8 seconds), the airflow generator 40 is activated. The airflow at a preset flow rate generated by the airflow generator 40 opens the second one-way valve 331, and the airflow at the preset flow rate sequentially passes through the second cavity 23 and the first cavity 22 and flows into the aerosol-generating article 50, thereby discharging the water molecules in the aerosol-generating article 50. After the airflow generator 40 is activated for a period of time (e.g., 3 seconds), it is turned off and the aerosol-generating mode is resumed. In the aerosol-generating mode, when the user inhales the aerosol-generating article 50, the first one-way valve 321 is kept open due to the pressure difference between the two sides. The external airflow flows into the aerosol-generating article 50 through the air inlet, the air inlet pipe 60, the second cavity 23, and the first cavity 22 in sequence. It should be noted that after the first one-way valve 321 and the second one-way valve 331 are opened, they can return to the closed state due to their own elasticity if no force is applied.

[0148] Another embodiment of the present application provides a heat-not-burn atomizer, comprising a control panel 80 and the aforementioned heat-not-burn device. The heating unit 10 and airflow generator 40 in the heat-not-burn device are electrically connected to the control panel 80, respectively, and the operating states of the heating unit 10 and airflow generator 40 are controlled by the control panel 80. The heat-not-burn atomizer includes the heat-not-burn device of the aforementioned embodiment and thus shares the advantages of the heat-not-burn device, which will not be further elaborated here.

[0149] Another embodiment of the heat-not-burn appliance may be referred to FIG. 26 to FIG. 31 .

[0150] In some embodiments, the heat-not-burn device may include a housing 100, and also includes a baking component 200, an airflow distributor 300, an airflow generating device 400, a circuit board 500, and a power module (not shown in the figure), wherein the inner cavity of the airflow distributor 300 is used to form an airflow distribution chamber, which is used to make the corresponding air path of the electronic atomization device meet the use requirements. When using the heat-not-burn device, the aerosol generating product 700 is loaded into the heat-not-burn device for heating. The aerosol generating product 700 generates an aerosol at a certain temperature for the user to inhale. In order to avoid burning the mouth when inhaling at the beginning, the air path structure includes an airflow generating device 400, and a blocking piece 340 is set in the airflow distribution chamber to realize the air path switching during blowing and normal inhalation.

[0151] Among them, the baking component 200 and the air flow distributor 300 are installed in the shell 100, forming the core of the device. The baking component 200 is used to connect the aerosol generating product 700 and heat the aerosol generating product 700. In a specific embodiment, a heating element is provided inside the baking component 200. The heating element can be, for example, a heating plate with a cylindrical structure, or a heating wire wound around the outer circumference of the cylinder, forming a circumferential heating structure. The central through hole inside the baking component 200 is used to form an insertion channel 210. One end of the insertion channel 210 is provided with an insertion port, and the end of the insertion channel 210 facing away from the insertion port is provided with an suction air flow port. The insertion channel 210 is used for inserting the aerosol generating product 700. After the aerosol generating product 700 is inserted into the heat-not-burn device, it can be heated by the baking component 200 to generate an aerosol. The above heating principle is a prior art and will not be described in detail here.

[0152] In one embodiment, the air flow distributor 300 and the baking component 200 are arranged separately, and the front end of the air flow distributor 300 is sealed and inserted into the bottom end of the baking component 200 .

[0153] Considering the manufacture of the air flow distributor 300, in one embodiment, please refer to Figures 27 to 29, the air flow distributor 300 includes a distributor body 310 and a plug 320, the first connecting part 331 is arranged at one end of the distributor body 310, the plug 320 is sealed at the end of the distributor body 310 facing away from the first connecting part 331, and the second connecting part 332 and the third connecting part 333 are arranged on the plug 320.

[0154] The inner cavity enclosed by the dispenser body 310 and the plug 320 constitutes an airflow distribution chamber. Referring to Figure 26 , the airflow distribution chamber comprises a first connecting portion 331, a second connecting portion 332, and a third connecting portion 333. These connecting portions 331, 332, and 333 are interconnected through the airflow distribution chamber. The first connecting portion 331 communicates with the suction airflow port at the inner end of the insertion channel 210, while the third connecting portion 333 communicates with the exterior of the heat-not-burn appliance via a connecting tube 600. The second connecting portion 332 communicates with an airflow generating device 400, which is an air blowing device having an airflow generating port connected to the second connecting portion 332. During operation, the airflow generating device 400 generates a motive airflow to generate gas flow within the aerosol-generating article 700. The air blowing device can be any device that meets exhaust requirements, such as an air pump or fan, and the technology is mature.

[0155] In order to prevent the dynamic airflow generated by the airflow generating device 400 during operation from being discharged through the normal suction air path, thereby affecting the stable operation of the airflow generating device 400, the second connecting part 332 and the third connecting part 333 are both located on one side of the airflow distribution chamber and are provided with a blocking piece 340. The blocking piece 340 is movably arranged, and each blocking piece 340 has a closed state in which it is blocked at the corresponding second connecting part or the third connecting part, and also has an open state in which the corresponding second connecting part or the third connecting part is opened under the push of the airflow.

[0156] In one specific embodiment, a movable blocking piece 340 includes a piece body 341 and at least two elastic arms 342. The elastic arms 342 are evenly distributed along the edge of the piece body 341. The ends of the elastic arms 342, distal from the piece body 341, are fixed to the airflow distribution chamber. The blocking piece 340 is movable by means of the elastic arms 342. The elastic arms 342 are used to apply a force to the piece body 341 toward the corresponding second or third connecting portion of the cover. The provision of the elastic arms 342 can exert a pulling effect on the piece body 341, thereby facilitating a better seal between the blocking piece 340 and the corresponding vent. Referring to Figures 27 to 29, in one embodiment, the elastic arms 342 are provided at two locations. The elastic arms 342 are corrugated in shape. One end of the corrugated shape is provided with an assembly structure for fixing to the airflow distribution chamber, and the other end is fixedly connected to the piece body 341. The corrugated shape of the elastic arms 342 helps reduce the opening force required for the blocking piece 340. To ensure uniform force on the blocking piece 340 and better stabilize its operation, the two elastic arms 342 are symmetrically arranged and evenly distributed along the circumference of the blocking piece 340. Providing two elastic arms 342 helps reduce space usage and simplify the structure. Of course, in some other embodiments, each blocking piece 340 may also be provided with three or more elastic arms 342.

[0157] In one embodiment, the secure assembly between the elastic arm 342 and the plug 320 includes a connecting post 344. The wall of the airflow distribution chamber is provided with a securing hole 321. The connecting post 344 is inserted into the securing hole 321 and secured to the wall of the airflow distribution chamber. The securing of the connecting post 344 to the securing hole 321 can be achieved through an interference fit, or through other methods such as bonding or clamping. Alternatively, the elastic arm 342 can omit the connecting post 344 and directly connect to the end face of the plug 320.

[0158] To stabilize the movement of the blocking piece 340 and enhance the reliability of the heat-not-burn appliance, in one embodiment, at least one blocking piece 340 is movably disposed along the axial direction of the corresponding second or third connecting portion. A guide post 343 is provided on the at least one movably disposed blocking piece 340. The guide post 343 is inserted into the corresponding second or third connecting portion to prevent the blocking piece 340 from deflecting. A gap is defined between the guide post 343 and the inner wall of the corresponding second or third connecting portion for airflow to pass through. Since the reliable closure of the third connecting portion during operation of the airflow generating device 400 directly affects the operating efficiency of the airflow generating device 400, a guide post 343 may be provided on the blocking piece 340 corresponding to the third connecting portion, as shown in Figures 27 and 29. The guide post 343 is cylindrical, with an outer diameter smaller than the inner diameter of the corresponding third connecting portion, and the gap between the guide post 343 and the third connecting portion is an annular gap.

[0159] It should be noted that the blocking pieces 340 corresponding to the second connecting part and the third connecting part can be provided with guide columns 343, and the guide columns 343 can also adopt a non-cylindrical structure. For example, the cross-section of the guide columns 343 can be configured as a cross, triangle, square, etc. At this time, the gap between the guide columns 343 and the corresponding vents is a plurality of gaps arranged along the circumferential direction.

[0160] To enhance the sealing effect of the blocking piece 340, in one embodiment, the blocking piece 340 can be made of an elastic material, such as silicone or rubber, so that it can better conform to the corresponding vent through its own deformation. Furthermore, for the blocking piece 340 connected to the guide post 343, the guide post 343 can be integrally formed with the blocking piece 340, or it can be manufactured separately from the blocking piece 340 and assembled into one piece.

[0161] In addition, in a specific embodiment, the sealing effect of the blocking piece 340 can be enhanced through other means. For example, in one embodiment, at least one blocking piece 340 is provided with an annular protrusion 345 on a side facing the corresponding second or third connecting portion. The wall of the airflow distribution chamber is provided with a protrusion 322, and the corresponding second and / or third connecting portion is disposed on the protrusion 322. The portion of the blocking piece 340 corresponding to the inner side of the annular protrusion 345 is used to seal against the end surface of the protrusion 322, and the annular protrusion 345 is used to surround the outer circumference of the protrusion 322. Through the cooperation between the annular protrusion 345 on the blocking piece 340 and the protrusion 322 on the airflow distribution chamber, the blocking piece 340 can be more accurately positioned at the corresponding vent, and a better sealing effect can be achieved.

[0162] In the above embodiment, the elastic arm 342 can improve the sealing reliability of the blocking piece 340. In some other embodiments, the blocking piece 340 can also adopt other structural forms.

[0163] For example, in one embodiment, the blocking piece at the second connecting portion is the first blocking piece 351, and the blocking piece at the third connecting portion is the second blocking piece 352. The sides of the first blocking piece 351 and the second blocking piece 352 close to each other are connected to the same mounting base 350. The mounting base 350 is fixed on the air flow distributor, and the first blocking piece 351 and the second blocking piece 352 are movably arranged in a swinging manner.

[0164] The first blocking piece 351, the second blocking piece 352, and the mounting base 350 are all integrally formed from an elastic material and are capable of switching between an open and closed state through elastic deformation. When not subject to airflow, the first blocking piece 351 and the second blocking piece 352 are both flat relative to the mounting base 350. When the airflow generating device 400 is operating, or when the user is inhaling normally, the corresponding first blocking piece 351 or second blocking piece 352 will elastically deflect relative to the mounting base 350, switching to the open state.

[0165] Of course, in other embodiments, the first blocking piece 351 and the second blocking piece 352 can also be assembled onto the mounting base 350 respectively. For example, the first blocking piece 351 and the second blocking piece 352 are made of elastic material, while the mounting base 350 is made of rigid material; the first blocking piece 351, the second blocking piece 352 and the mounting base 350 can also all be made of rigid material, and the first blocking piece 351 and the second blocking piece 352 can be assembled onto the mounting base 350 through a hinged structure.

[0166] In order to make the opening of the second connecting portion smoother, in a specific embodiment, the blocking piece 340 provided at the second connecting portion can be a flat piece.

[0167] When a user uses the aforementioned heat-not-burn device, they insert the aerosol-generating product into the insertion port of the baking component 200. After turning on the switch of the heat-not-burn device, the heating element preheats the aerosol-generating product 700. Before the user draws, the airflow generating device 400 is activated, generating a blowing airflow. The blowing airflow pushes the sealing piece 340 at the second connecting portion to open and enter the airflow distribution chamber, discharging the high-temperature gas within the aerosol-generating product 700 to avoid burning the mouth during the first puff. At this time, the sealing piece 340 at the third connecting portion is tightly closed under the pressure of the blowing airflow, fully utilizing the airflow generated by the airflow generating device 400 to meet the blowing demand, thereby improving the working efficiency of the airflow generating device 400. In addition, after the airflow generating device 400 stops working, when the user draws, the sealing piece 340 at the second channel automatically closes, while the inhalation airflow pushes the sealing piece 340 at the third channel to open, meeting normal inhalation needs. This ensures the reliable operation of the electronic atomization device as a whole, and does not require additional operation, which is conducive to achieving a better user experience.

[0168] Another embodiment of the heat-not-burn appliance may be referred to FIG. 32 and FIG. 33 .

[0169] In some embodiments, the heating non-combustion device may include a first valve 4, an airflow generating device 7, and a second valve 5. The heating unit, the first valve 4, the airflow generating device 7, and the second valve 5 are all located in a shell. The shell has an airflow inlet 131, and the heating unit has a accommodating cavity 23 and an air inlet. The accommodating cavity 23 is used to accommodate the aerosol generating product 100, and the air inlet can connect the airflow inlet 131 and the accommodating cavity 23; the first valve 4 is located between the air inlet and the accommodating cavity 23 or is connected in series in the air inlet. The first valve 4 can control the airflow The inlet 131 is connected with the accommodating chamber 23; the airflow generating device 7 is used to supply air to the accommodating chamber 23, the airflow generating device 7 has an airflow generating port 71, and the second valve 5 is located between the airflow generating device 7 and the accommodating chamber 23, and the second valve 5 can control the connection between the airflow generating port 71 and the accommodating chamber 23; in this way, before the user inhales, the second valve 5 can be opened, and air can be blown into the accommodating chamber 23 through the airflow generating device 7 to blow out an aerosol containing high-temperature water vapor, which can avoid scalding the user by the high-temperature water vapor in the aerosol during the subsequent inhalation process.

[0170] Specifically, in one embodiment, the first valve 4 and the second valve 5 are both solenoid valves, and the heating without burning appliance includes an electronic control module, which includes a circuit board 92 and a battery 93. The first valve 4 and the second valve 5 are both electrically connected to the circuit board 92. The opening and closing of the first valve 4 and the second valve 5 can be controlled respectively by the circuit board 92 in the electronic control module. In this way, the high-temperature water vapor in the aerosol generating product 100 can be automatically controlled to be discharged before formal inhalation.

[0171] For example, in one embodiment, a control program can be recorded in the circuit board 92 so that the working process of the heating without burning appliance has a preheating stage and a suction stage. When the heating without burning appliance is in the preheating stage, the second valve 5 is opened by the electronic control module, so that the airflow generating device 7 blows air into the accommodating chamber 23 through the airflow generating port 71 to discharge high-temperature water vapor; in the suction stage, the first valve 4 is opened and the second valve 5 is closed by the electronic control module to meet the normal suction needs of the user.

[0172] In the preheating stage, the first valve 4 is also closed by the electronic control module to prevent the gas discharged from the airflow generating port 71 of the airflow generating device 7 from being discharged from the airflow inlet 131 along the air inlet, which helps to ensure the sealing of the air inlet and the air duct connected to the airflow generating port 71.

[0173] Of course, in other embodiments, the heating without burning appliance can also be provided with a cleaning stage after the suction stage. The cleaning stage is located in the later stage of the working process. When the heating without burning appliance is in the cleaning stage, the aerosol generating product 100 has been removed from the accommodating chamber 23. The second valve 5 is opened and the first valve 4 is closed through the electronic control module, so that the airflow generating device 7 blows air into the accommodating chamber 23 to discharge the residue in the accommodating chamber 23, thereby achieving cleaning of the accommodating chamber 23.

[0174] Alternatively, in other embodiments, the second valve 5 and the first valve 4 can be opened simultaneously by the electronic control module in the latter part of the puffing stage to increase the air intake volume in the accommodating chamber 23, reduce the resistance in the latter part of the puffing, and improve the taste in the latter part of the puffing.

[0175] Of course, in other embodiments, switches can be provided on the housing, respectively linked to the first valve 4 and the second valve 5, and the corresponding switches can be opened or closed by operating the corresponding switches to realize the opening and closing of the corresponding first valve 4 and the second valve 5, thereby realizing manual control of the first valve 4 and the second valve 5. In this way, the switch control of the first valve 4 and the second valve 5 can be realized at any stage during the operation of the heating non-combustion appliance.

[0176] In one embodiment, the airflow generating device 7 can be an air pump, or the airflow generating device 7 can also be a blower. The airflow generating device 7 is electrically connected to the electronic control module. The electronic control module can control the operation of the airflow generating device 7 while controlling the opening of the second valve 5 to supply air to the accommodating cavity 23 through the airflow generating port 71 of the airflow generating device 7.

[0177] In one embodiment, please refer to Figures 32 and 33, the shell includes a shell 11, a first end cover 12 and a second end cover 13, the shell 11 is a cylindrical structure extending in the first direction, and the shell 11 is opened at both ends in the first direction. The first end cover 12 and the second end cover 13 are respectively installed at the openings at both ends of the shell 11, the first end cover 12 has an opening connected to the accommodating chamber 23, and the second end cover 13 has an air flow inlet 131 connected to the air inlet.

[0178] The heating unit includes an atomizing cylinder 21 and a connecting piece arranged in a first direction. The atomizing cylinder 21 extends in the first direction. One end of the atomizing cylinder 21 is positioned and installed at the opening of the first end cover 12, and the other end is sealed with the connecting piece. The heating unit also includes a heating tube 22 that is sealed and installed between the atomizing cylinder 21 and the connecting piece. The heating tube 22 is located in the atomizing cylinder 21. The heating tube 22 and the atomizing cylinder 21 enclose a receiving cavity 23. The heating tube 22 can generate heat when energized to heat the aerosol generating product 100 in the receiving cavity 23; or a coil is wound around the outer circumference of the atomizing cylinder 21, and the heating tube 22 can generate heat under the action of the alternating magnetic field generated by the energization of the coil to heat the aerosol generating product 100 in the receiving cavity 23. The atomizing cylinder 21 has an outer cylinder wall spaced apart from the heating tube 22 . A heat insulating layer is provided on the outer cylinder wall of the atomizing cylinder 21 to isolate the heat in the accommodating cavity 23 through the heat insulating layer, thereby reducing heat loss in the accommodating cavity 23 .

[0179] Please refer to Figure 32. In one embodiment, the connecting member includes a connecting cylinder 31 and a connecting base 32. The connecting cylinder 31 extends in the first direction. A sealing ring is installed on the outer peripheral surface of the connecting cylinder 31. The connecting cylinder 31 is sealed and plugged with the atomizer cylinder 21 through the sealing ring. The connecting cylinder 31 has a portion inserted into the atomizer cylinder 21, which abuts against the heating tube 22 in the first direction through a sealing member. The connecting cylinder 31 has a first opening and a second opening at both ends in the first direction. The first opening is located in the atomizer cylinder 21. The size of the first opening is smaller than the size of the second opening. The connecting base 32 is installed at the second opening. The connecting cylinder 31 and the connecting base 32 are combined to form a connecting chamber 33. The connecting cylinder 31 is provided with a plurality of through holes 311 at a position near the first opening. The through holes 311 can connect the connecting chamber 33 with the accommodating chamber 23. The through holes 311 can also converge the airflow flowing through the connecting chamber 33 to improve the uniformity of the airflow entering the accommodating chamber 23.

[0180] In one embodiment, the first valve 4 and the second valve 5 are both mounted on the connector, the first valve 4 having a first air outlet port 42 and a first air inlet port 41, the second valve 5 having a second air outlet port 52 and a second air inlet port 51, and the first air outlet port 42 of the first valve 4 and the second air outlet port 52 of the second valve 5 are both in communication with the connecting chamber 33. Of course, in other embodiments, the first valve 4 and the second valve 5 can be provided separately from the connector, and the first air outlet port 42 of the first valve 4 and the second air outlet port 52 of the second valve 5 are both connected to the connecting chamber 33 via a hose.

[0181] In one embodiment, the first valve 4 and the second valve 5 are both installed on the connecting base 32, the first valve 4 is located in the connecting compartment 33, the connecting base 32 has a first mounting hole 321 (i.e., a third connecting portion) connected to the connecting compartment 33, the first air inlet connector enclosed on the first valve 4 to form a first air inlet interface 41 is installed in the first mounting hole 321, the first air inlet interface 41 of the first valve 4 is located in the first mounting hole 321, and the first air inlet interface 41 is connected to the air inlet, so that the connection between the air inlet and the accommodating chamber 23 can be controlled by the first valve 4.

[0182] Or in some other embodiments, part of the first valve 4 is located inside the connecting compartment 33, the first air inlet connector on the first valve 4 passes through the first mounting hole 321, the first air inlet interface 41 of the first valve 4 is located outside the first mounting hole 321 and is also located outside the connecting compartment 33, and the first air inlet interface 41 is connected to the air inlet.

[0183] In one embodiment, the second valve 5 is also located in the connecting chamber 33, and the connecting base 32 also has a second mounting hole 322 (i.e., a second connecting portion) connected to the connecting chamber 33. The second air inlet connector 51 formed on the second valve 5 is installed in the second mounting hole 322. The second air inlet interface 51 of the second valve 5 is located in the second mounting hole 322. The second air inlet interface 51 is connected to the airflow generating port 71 of the airflow generating device 7. In this way, the connection between the airflow generating port 71 of the airflow generating device 7 and the accommodating chamber 23 can be controlled by the second valve 5.

[0184] Or in some other embodiments, part of the second valve 5 is located inside the connecting compartment 33, the second air inlet connector on the second valve 5 passes through the second mounting hole 322, the second air inlet interface 51 of the second valve 5 is located outside the second mounting hole 322 and is also located outside the connecting compartment 33, and the second air inlet interface 51 is connected to the airflow generating port 71.

[0185] In this way, the first valve 4 and the second valve 5 are both installed on the connecting base 32, and at least part of the first valve 4 and at least part of the second valve 5 are arranged in the connecting compartment 33. On the one hand, it is convenient to install and position the first valve 4 and the second valve 5 in the shell, and on the other hand, it helps to reduce the volume of the entire heating without burning appliance and realize the miniaturized design of the heating without burning appliance.

[0186] Of course, in other embodiments, the first valve 4 and the second valve 5 can be arranged outside the connecting chamber 33. For example, the first valve 4 can be connected in series to the air inlet, and the first air outlet interface 42 of the first valve 4 is connected to the connecting chamber 33 through part of the air inlet, or the first air outlet connector enclosed on the first valve 4 to form the first air outlet interface 42 is connected to the first mounting hole 321 on the connecting base 32, and the second air outlet connector enclosed on the second valve 5 to form the second air outlet interface 52 is plugged into the second mounting hole 322, so as to achieve the fixation of the positions of the first valve 4 and the second valve 5 in the shell.

[0187] In one embodiment, please refer to Figure 32, the connecting base 32 has a partition 323 extending toward the connecting chamber 33, the partition 323 is located between the first valve 4 and the second valve 5, and the first gas outlet interface 42 of the first valve 4 and the second gas outlet interface 52 of the second valve 5 are separated by the partition 323. In this way, the partition 323 can be used to preliminarily achieve the separation and guidance of the gas discharged from the first gas outlet interface 42 and the gas discharged from the second gas outlet interface 52.

[0188] In one embodiment, please refer to Figures 32 and 33. The heating non-combustion appliance also includes a bracket 61 located in the shell, and the bracket 61 extends in the first direction. The two ends of the bracket 61 are fixedly connected to the first end cover 12 and the second end cover 13 respectively. The circuit board 92 and the battery 93 are both installed on the bracket 61. The battery 93 and the heating unit are located on both sides of the bracket 61 in a plane perpendicular to the first direction. The circuit board 92 is located between the heating unit and the battery 93. A support base 62 is connected to the circuit board 92, and a positioning groove is provided on the support base 62. At least a portion of the airflow generating device 7 is located in the positioning groove to achieve the fixation of the position of the airflow generating device 7 in the shell.

[0189] The air outlet connector on the airflow generating device 7 that forms the airflow generating port 71 is plugged into the second mounting hole 322, so that the airflow generating port 71 of the airflow generating device 7 is connected to the second air inlet interface 51 of the second valve 5 in the second mounting hole 322. On the one hand, the second mounting hole 322 on the connecting base 32 can be used to assist in the positioning and installation of the airflow generating device 7. On the other hand, it can avoid the need to set a connecting pipe between the airflow generating device 7 and the second valve 5, thereby reducing the number of parts of the heating non-combustion appliance and facilitating the assembly of the heating non-combustion appliance.

[0190] Of course, if the size of the finished airflow generating device 7 is small, an air pipe can be connected to the airflow generating port 71 of the airflow generating device 7 to communicate with the second air inlet interface 51 of the second valve 5 through the air pipe.

[0191] In one embodiment, please refer to Figures 32 and 33, the heating unit also includes an air intake assembly, the air intake assembly is enclosed to form an air inlet, the air intake assembly includes a positioning member 81 and an air intake pipe 82, the second end cover 13 is provided with a groove at the air flow inlet 131, the positioning member 81 is located in the groove to achieve the fixation of the position of the positioning member 81, the positioning member 81 has a positioning recess, the airflow generating device 7 is located in the positioning recess to further achieve the fixation of the position of the airflow generating device 7 in the shell.

[0192] The air inlet includes a first air duct 811 formed by the positioning member 81, the first air duct 811 is connected to the air flow inlet 131, the air inlet pipe 82 is extended in the first direction, one end of the air inlet pipe 82 is plugged into the positioning member 81, and the air inlet also includes a second air duct 821 formed by the air inlet pipe 82, the second air duct 821 is connected to the first air duct 811, and the other end of the air inlet pipe 82 can be plugged into the first air inlet connector exposed outside the first mounting hole 321 to achieve communication between the air inlet and the first air inlet interface 41. Of course, in other embodiments, the other end of the air inlet pipe 82 can also be directly plugged into the first mounting hole 321 so that the air inlet can be connected to the first air inlet interface 41 through the first mounting hole 321.

[0193] Alternatively, in other embodiments, the positioning member 81 may not be provided, and the air inlet is formed only by the air inlet pipe 82. One end of the air inlet pipe 82 is plugged into the air flow inlet 131 on the second end cover 13, and the other end is plugged into the first mounting hole 321 to achieve communication between the air flow inlet 131 and the first air inlet interface 41 through the air inlet.

[0194] In one embodiment, please continue to refer to Figures 32 and 33. The air intake assembly has a third mounting hole 812 (i.e., the first connecting portion). The third mounting hole 812 is located on the positioning member 81. The third mounting hole 812 is connected to the first air duct 811. The heating non-combustion appliance also includes an air pressure sensor 91. The air pressure sensor 91 is electrically connected to the circuit board 92. The air pressure sensor 91 is installed in the third mounting hole 812. The triggering end of the air pressure sensor 91 faces the first air duct 811. When gas passes through the first air duct 811 during the suction stage, the air pressure sensor 91 is triggered. The air pressure sensor 91 can send an electrical signal to the electronic control module, and the electronic control module controls the heating of the heating tube 22.

[0195] The above specific examples are used to illustrate the present application, which is only used to help understand the present application and is not intended to limit the present application. For those skilled in the art of the present application, based on the concept of the present application, they can also make some simple deductions, modifications or substitutions.

Claims

1. A heating-not-burning device, characterized in that: include: A heating unit, wherein the heating unit is provided with a receiving cavity for loading the aerosol generating product, and the heating unit is used to heat the aerosol generating product to generate an aerosol; the heating unit has an air inlet for airflow to enter the receiving cavity; An airflow generating device, the airflow generating device having an airflow generating port, the airflow generating device being used to generate an airflow when in operation so as to generate a gas flow in the aerosol generating article; And an air flow distribution component, the air flow distribution component has a first connecting part, a second connecting part and a third connecting part, the first connecting part is connected to the air inlet, the second connecting part is connected to the air flow generating port, and the third connecting part is connected to the outside of the heating non-combustion appliance; the second connecting part and the third connecting part both have a connecting state for connecting with the first connecting part.

2. The heating without burning device according to claim 1, characterized in that: The air flow distribution assembly has a first state in which the first communication portion is in communication with only the second communication portion, and a second state in which the first communication portion is in communication with only the third communication portion.

3. The heating without burning device according to claim 2, characterized in that: The air flow distribution assembly includes a valve body, in which a first channel and a second channel are provided. The first channel and the second channel are close to one end of the heating unit and are both connected to the first connecting part, and the other ends of the first channel and the second channel are respectively connected to the second connecting part and the third connecting part.

4. The heating without burning device according to claim 3, characterized in that: At least one of the first channel and the second channel includes two staggered sections, the staggered sections are spaced apart along the arrangement direction of the first channel and the second channel, and the channel opening spacing at one end of the first channel and the second channel close to the heating unit is smaller than the channel opening spacing at the other end.

5. The heating without burning device according to claim 3 or 4, characterized in that: The valve body is provided with a slide groove, which traverses the first channel and the second channel. The airflow distribution component includes a movably arranged valve core, which is movably arranged in the slide groove. The valve core has a handle, and the handle extends from the valve body for the user to turn it.

6. The heating without burning device according to claim 5, characterized in that: The valve core is provided with a first through hole and a second through hole; when the air flow distribution assembly is in a first state, the second through hole is located on the extension path of the second channel, and a portion of the valve core located between the first through hole and the second through hole blocks the first channel; When the airflow distribution assembly is in the second state, the first through hole is located on the extension path of the first channel, and the portion of the valve core between the first through hole and the second through hole blocks the second channel.

7. The heating without burning device according to claim 6, characterized in that: The distance between the first channel and the second channel at the slide groove is smaller than the distance between the first through hole and the second through hole.

8. The heating without burning device according to any one of claims 1 to 3, characterized in that: At least one of the first connecting portion, the second connecting portion and the third connecting portion is a plug hole.

9. The heating without burning device according to claim 1, characterized in that: The accommodating cavity forms an insertion channel for inserting the aerosol generating product, and the insertion channel has an axial direction consistent with the insertion direction of the aerosol generating product, and also has a radial direction perpendicular to the axial direction; an insertion port is provided at one axial end of the insertion channel, and an air flow hole is provided at the other end, and the air flow hole is used to be opposite to the end face of the aerosol generating product; the air flow hole includes a center hole and an edge hole, the center hole is arranged close to the central axis of the insertion channel, the edge holes are arranged on the circumferential side of the center hole, and the diameter of the center hole is larger than the diameter of the edge hole.

10. The heating without burning device according to claim 9, characterized in that: There are a plurality of edge holes which are evenly arranged around the central hole.

11. The heating without burning device according to claim 9, characterized in that: The diameter of the central hole is at least 2.5 times the diameter of the edge hole.

12. The heating without burning device according to any one of claims 9 to 11, characterized in that: The heating unit comprises a separately arranged baking component and an air flow distributor, the insertion channel is arranged on the baking component, the air flow distributor is located at the bottom end of the baking component, and the air flow holes are arranged on the air flow distributor.

13. The heating without burning device according to claim 12, characterized in that: A support structure is provided on one side of the airflow distributor close to the insertion channel, and the support structure is used to form a gap between the bottom end surface of the aerosol generating product and the airflow distributor.

14. The heating without burning device according to claim 13, characterized in that: An annular step is provided on the bottom inner wall of the insertion channel, the supporting structure includes the annular step, a buffer cavity is formed on the heating unit between the annular step and the airflow distributor, and the interval is formed by the buffer cavity.

15. The heating without burning device according to claim 14, characterized in that: A supporting rib is provided between the end surface of the airflow distributor on one side close to the insertion channel and the side wall of the buffer cavity, and the supporting structure includes the supporting rib.

16. The heating without burning device according to claim 12, characterized in that: The air flow distributor includes a distributor body and a diverter plate, the diverter plate is arranged at one end of the distributor body close to the baking component, and the air flow holes are arranged on the diverter plate; a gas chamber is provided in the distributor body on the side of the diverter plate away from the baking component, the air flow generating device is a blowing device, the gas chamber is connected to the air flow generating port of the blowing device, and a suction port is also provided on the gas chamber, and the suction port is connected to the outside of the heating non-combustion appliance.

17. The heating without burning device according to claim 1, characterized in that: The airflow distribution assembly includes a first chamber and a second chamber, the second connecting portion is arranged in the first chamber, the third connecting portion is arranged in the second chamber, and the first chamber and the second chamber are connected to the first connecting portion at one end close to the first connecting portion.

18. The heating without burning device according to claim 17, characterized in that: The airflow distribution assembly includes a first inner extending tube body and a second inner extending tube body, wherein one end of the first inner extending tube body is connected to the second connecting portion and the other end extends toward the first connecting portion, and one end of the second inner extending tube body is connected to the third connecting portion and the other end extends toward the first connecting portion.

19. The heating without burning device according to claim 18, characterized in that: A partition is provided in the air flow distribution assembly, the first chamber and the second chamber are separated by the partition, and the distances that the first inner extending tube body and the second inner extending tube body extend to the first connecting portion are smaller than the distance that the partition body extends to the first connecting portion.

20. The heating without burning device according to any one of claims 17 to 19, characterized in that: The boundary between the first chamber and the second chamber is offset to one side of the airflow distribution assembly close to the second chamber, and the cross-sectional area of ​​the channel from the second chamber to the first connecting portion is smaller than the cross-sectional area of ​​the channel from the first chamber to the first connecting portion.

21. The heating without burning device according to any one of claims 17 to 19, characterized in that: An end of the inner wall of the first chamber close to the first connecting portion has a taper, so that a side of the first chamber communicating with the first connecting portion forms a constricted structure.

22. The heating without burning device according to any one of claims 17 to 19, characterized in that: The outer peripheral surface of one end of the second chamber close to the first connecting portion has a contraction portion with a reduced radial dimension, and the chamber wall of the second chamber on the side facing away from the first chamber is formed by the contraction portion.

23. The heating without burning device according to any one of claims 17 to 19, characterized in that: The airflow distribution assembly includes a distributor body and a plug, the first connecting portion is arranged at one end of the distributor body, the plug blocks an end of the distributor body facing away from the first connecting portion, and the second connecting portion and the third connecting portion are arranged on the plug.

24. The heating without burning device according to claim 23, characterized in that: The plug includes an end cover part and a partition part, the partition part protrudes from the inner side of the end cover part, the first chamber and the second chamber are separated by the partition part, and the partition part has a side edge that matches the shape of the inner wall of the airflow distribution component.

25. The heating without burning device according to claim 1, characterized in that: The accommodating cavity forms an insertion channel for inserting the aerosol generating product, one end of the insertion channel is provided with an insertion port, and the end of the insertion channel facing away from the insertion port is provided with an air flow hole; the second connecting part is provided with an opening adjustment structure, and the opening adjustment structure is used to adjust the opening size of the second connecting part.

26. The heating without burning device according to claim 25, characterized in that: The opening adjustment structure includes a movable valve flap, which is distributed along the circumference of the second connecting portion. The movable valve flap has a natural state and a force state. The movable valve flap is closed or has a first opening in the natural state without being subjected to external force, and has a second opening under the push of the airflow flowing toward the insertion channel, and the second opening is greater than the first opening.

27. The heating without burning device according to claim 26, characterized in that: The movable valve flap is arranged obliquely relative to the ventilation direction of the second communication portion, and the inclined movable valve flap forms a conical structure, and the small end of the conical structure faces the insertion channel.

28. The heating without burning device according to claim 26 or 27, characterized in that: The opening adjustment structure comprises a flexible membrane, on which a slit penetrating along the membrane thickness direction is provided, and the slit divides the flexible membrane into the movable valve flaps, and the number of the movable valve flaps is at least three.

29. The heating without burning device according to claim 25, 26 or 27, characterized in that: The second connecting portion is connected to an inner extending tube body, the inner extending tube body extends toward the first connecting portion, and the opening adjustment structure is arranged at the front end of the inner extending tube body in the extending direction.

30. The heating without burning device according to claim 25, 26 or 27, characterized in that: The opening adjustment structure is a mechanical valve structure.

31. The heating without burning device according to claim 25, 26 or 27, characterized in that: The opening adjustment structure includes an electrically controlled actuator and a valve core, wherein the electrically controlled actuator is used to be connected to a controller, and the valve core is used to adjust the opening size of the second communication portion under the control of the electrically controlled actuator.

32. The heating without burning device according to claim 25, 26 or 27, characterized in that: The third connecting part is provided with a movable valve flap, which is distributed along the circumference and has a natural state and a force state. The movable valve flap on the third connecting part is closed or has a first opening in a natural state without being subjected to external force, and has a second opening under the push of the airflow flowing toward the insertion channel, and the second opening is greater than the first opening.

33. The heating without burning device according to claim 1, characterized in that: It includes a base, which is arranged at one end of the heating unit; the airflow distribution component is connected to an end of the base away from the heating unit; the airflow distribution component includes an airway switching body, a first airway tube and a second airway tube, and the first airway tube and the second airway tube are both fixed on an end surface of the airway switching body facing the heating unit; a first one-way valve is provided at one end of the first airway tube facing the heating unit, and a second one-way valve is provided at one end of the second airway tube facing the heating unit, and the first one-way valve and the second one-way valve both have two working states of open and closed.

34. The heating without burning device according to claim 33, characterized in that: The axial length of the first airway tube is smaller than the axial length of the second airway tube.

35. The heating without burning device according to claim 34, characterized in that: The side of the base facing the airflow distribution component is a cylindrical structure, and the cylindrical structure has two cylinders with different axial lengths along the axial direction of the airflow distribution component; the first airway tube is located in the cylinder with a relatively smaller axial length, and the second airway tube is located in the cylinder with a relatively larger axial length.

36. The heating without burning device according to claim 33, characterized in that: An annular groove is formed at one end of the airway switching body facing the heating unit, and the end of the base is sleeved in the annular groove.

37. The heating without burning device according to claim 33, characterized in that: A partition is provided in the base, and the partition divides the space in the base into a first cavity and a second cavity along the axial direction. The first cavity is located on a side close to the heating unit, and the second cavity is located on a side away from the heating unit; at least one vent hole is provided on the partition.

38. The heating without burning device according to claim 37, characterized in that: The partition plate is provided with a plurality of evenly distributed ventilation holes.

39. The heating without burning device according to claim 1, characterized in that: The second connecting part and the third connecting part are each provided with a blocking piece on one side located in the airflow distribution chamber. The blocking pieces are movably arranged, and each of the blocking pieces has a closed state in which it is blocked at the corresponding second connecting part or the third connecting part, and also has an open state in which the corresponding second connecting part or the third connecting part is opened under the push of the airflow flowing toward the first connecting part.

40. The heat-not-burn device according to claim 39, characterized in that: At least one of the blocking pieces is movably arranged along the axial direction of the corresponding second connecting part or the third connecting part, and at least one of the movably arranged blocking pieces is provided with a guide column, which is inserted into the corresponding second connecting part and / or the third connecting part to limit the deflection of the blocking piece, and a gap is provided between the guide column and the inner wall of the corresponding second connecting part or the third connecting part for airflow to pass through.

41. The heating without burning device according to claim 40, characterized in that The outer diameter of the guide column is smaller than the inner diameter of the corresponding second connecting portion or the third connecting portion, and the gap is an annular gap.

42. The heating without burning device according to claim 39, 40 or 41, characterized in that: The blocking piece includes a piece body and at least two elastic arms, the elastic arms are evenly distributed along the edge of the piece body, one end of the elastic arm away from the piece body is fixed to the airflow distribution chamber, the blocking piece is movably arranged by relying on the elastic arms, and the elastic arms are used to apply a force to the piece body to move toward the second connecting part or the third connecting part corresponding to the cover.

43. The heating without burning device according to claim 42, characterized in that: The elastic arm is in a corrugated shape, one end of the corrugated shape is provided with an assembly structure for fixing to the airflow distribution chamber, and the other end is fixedly connected to the sheet body.

44. The heating without burning device according to claim 43, characterized in that: The assembly structure is a connecting column, a fixing hole is provided on the wall of the airflow distribution chamber, and the connecting column is inserted into the fixing hole and fixed on the wall of the airflow distribution chamber.

45. The heating without burning device according to claim 39, 40 or 41, characterized in that: At least one of the sealing pieces is provided with an annular protrusion on the side facing the corresponding second connecting part or the third connecting part, a protrusion is provided on the wall of the airflow distribution chamber, and the corresponding second connecting part and / or third connecting part is arranged on the protrusion, and the part of the sealing piece corresponding to the inner side of the annular protrusion is used to seal on the end face of the protrusion, and the annular protrusion is used to surround the outer periphery of the protrusion.

46. ​​The heating without burning device according to claim 39, 40 or 41, characterized in that: The blocking piece at the second connecting part is a first blocking piece, and the blocking piece at the third connecting part is a second blocking piece. The first blocking piece and the second blocking piece are connected to the same mounting base on one side close to each other. The mounting base is fixed on the airflow distribution chamber. The first blocking piece and the second blocking piece are movably arranged in a swinging manner.

47. The heat-not-burn device according to claim 46, characterized in that: The blocking piece arranged at the second connecting portion is a flat sheet.

48. The heat-not-burn device according to claim 1, characterized in that: The air flow distribution assembly comprises: A first valve, located between the air inlet and the accommodating chamber or connected in series in the air inlet, to control the communication between the air flow inlet and the accommodating chamber; The second valve is located between the airflow generating device and the accommodating chamber to control the communication between the airflow generating port and the accommodating chamber.

49. The heat-not-burn device according to claim 48, characterized in that: The heating without burning appliance has a preheating stage and a suction stage; during the preheating stage, the second valve is opened, and the airflow generating device blows air into the accommodating chamber through the airflow generating port; during the suction stage, the second valve is closed, the first valve is opened, and the airflow inlet is connected to the accommodating chamber.

50. The heat-not-burn device according to claim 48, characterized in that: The heating unit includes an atomizing cylinder and a connecting piece, the accommodating chamber is located in the atomizing cylinder, the connecting piece is sealed and connected to the atomizing cylinder, the connecting piece has a connecting warehouse communicated with the accommodating chamber, the first valve has a first air outlet interface, the second valve has a second air outlet interface, and the first air outlet interface and the second air outlet interface are both communicated with the connecting warehouse.

51. The heating without burning device according to claim 50, characterized in that: The connecting member includes a connecting cylinder and a connecting base, the connecting cylinder has a first opening and a second opening located at two ends thereof, the first opening is communicated with the accommodating cavity, the connecting base is sealedly connected to the second opening, and the connecting base and the connecting cylinder are enclosed to form the connecting bin.

52. The heating without burning device according to claim 51, characterized in that The first valve and / or the second valve are installed on the connecting base.

53. The heating without burning device according to claim 52, characterized in that: At least part of the first valve is located in the connecting compartment, the connecting base has a first mounting hole, the first valve has a first air inlet interface, the first air inlet interface is located in the first mounting hole or the first valve passes through the first mounting hole, and the first air inlet interface is connected to the air inlet.

54. The heat-not-burn device according to claim 52, characterized in that: At least part of the second valve is located in the connecting compartment, the connecting base has a second mounting hole, the second valve has a second air inlet interface, the second air inlet interface is located in the second mounting hole or the second valve passes through the second mounting hole, and the second air inlet interface is connected to the airflow generating port.

55. The heat-not-burn device according to claim 54, characterized in that: The second air inlet interface and the airflow generating port are both located in the second mounting hole, and the second air inlet interface and the airflow generating port are communicated with the second mounting hole.

56. The heat-not-burn appliance according to any one of claims 48 to 55, characterized in that: The heating unit includes an air intake assembly, which encloses the air inlet, and the air intake assembly has a third mounting hole, which is connected to the air inlet. The heating non-combustion appliance includes an air pressure sensor, which is installed in the third mounting hole, and the trigger end of the air pressure sensor faces the air inlet.

57. The heat-not-burn appliance according to any one of claims 1, 9, 17, 25, 33, 39 and 48, characterized in that The third connecting portion is connected to a main airway pipe, and the main airway pipe leads to the outside of the shell of the heating without burning appliance.

58. The heat-not-burn appliance according to any one of claims 1, 9, 17, 25, 33, 39 and 48, characterized in that The airflow generating device is an air blowing device, and the air blowing device is an air pump or a fan.

59. An electronic atomization device, characterized in that: include: Aerosol-generating products; A heat-not-burn appliance, wherein the heat-not-burn appliance is the heat-not-burn appliance according to any one of claims 1 to 58, and the aerosol-generating article is used to be inserted into the accommodating cavity on the heating unit.

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