Atomization assembly and heating non-combustion appliance

Abstract

The atomization assembly is provided with an airflow channel and a sealed air cavity, and an induction air opening is formed in the cavity wall of the sealed air cavity; the atomization assembly comprises a one-way valve located between the sealed air cavity and the airflow channel, and the one-way valve has an open state and a closed state. Under the action of negative pressure in the airflow channel, the air pressure in the airflow channel is smaller than that of the sealed air cavity, external air can enter the atomization assembly along the airflow channel, the sealed air cavity is communicated with the airflow channel through a one-way valve, and the pressure change in the sealed air cavity triggers the pneumatic switch through the sensing air port to control the atomization assembly to work normally; when air does not enter the airflow channel, aerosol generated in the airflow channel flows back along the airflow channel, the air pressure in the airflow channel is larger than or equal to the air pressure outside the atomization assembly, the one-way valve is closed, the backflow aerosol cannot enter the sealed air cavity, and in other words, the backflow aerosol cannot be condensed and gathered on the pneumatic switch to cause failure of the pneumatic switch; and the normal work of the pneumatic switch can be ensured.

Description

Technical Field

[0001] The present application relates to the technical field of heat without burning, and in particular to an atomization assembly and a heat without burning device. Background Art

[0002] A heat-not-burn device is a device that heats an aerosol-generating substrate by a heat-not-burn method, so that the aerosol-generating substrate generates an aerosol.

[0003] The heating non-burning appliance generally includes an atomization component and a power supply component. The atomization component has an atomization channel, and the atomization component is used to heat the aerosol generating substrate so that the aerosol generating substrate generates an aerosol and is discharged from the atomization channel; the power supply component is electrically connected to the heating element in the atomization component, and the power supply component and / or the atomization component has an air inlet channel connected to the atomization channel. The power supply component includes a pneumatic switch, and the control air port of the pneumatic switch is connected to the air inlet channel. The pneumatic switch can control the heating of the heating element according to the change of air pressure in the air flow channel.

[0004] When there is no air intake in the air intake channel, the aerosol generated in the atomization channel is easy to flow back along the atomization channel and the air intake channel. The refluxed aerosol is easy to enter the power supply component. After condensation, the refluxed aerosol gathers on the pneumatic switch of the power supply component, which can easily cause the pneumatic switch to fail. Utility Model Content

[0005] The present application provides an atomization assembly and a heating-without-burning device to solve the technical problem that backflow aerosol easily causes the failure of a pneumatic switch.

[0006] According to the first aspect, an embodiment provides an atomizer assembly, the atomizer assembly having an air flow channel and a sealed air cavity, the cavity wall of the sealed air cavity being provided with a sensing air port for communicating with a control air port of a pneumatic switch;

[0007] The atomizer assembly includes a one-way valve, which is located between the sealed air cavity and the air flow channel, and the one-way valve has an open state and a closed state; in the open state, the air pressure in the air flow channel is lower than the air pressure outside the atomizer assembly, and the sealed air cavity is connected to the air flow channel through the one-way valve; in the closed state, the air pressure in the air flow channel is equal to or higher than the air pressure outside the atomizer assembly, and the sealed air cavity is separated from the air flow channel by the one-way valve.

[0008] In an optional embodiment, the airflow channel includes an atomization channel and an air inlet channel connected to the atomization channel, the atomization channel has a first channel opening and a second channel opening located at both ends of its extension direction, the first channel opening is connected to the air inlet channel, the second channel opening is used for aerosol discharge, and the sealed air cavity is located on the side of the first channel opening in the extension direction of the atomization channel.

[0009] In an optional embodiment, the one-way valve has a protruding portion facing the first channel opening in the extension direction of the atomization channel, and the one-way valve has a valve hole, which is located on the protruding portion.

[0010] In an optional embodiment, the one-way valve includes a valve body and a plurality of valve flaps, the valve body having a valve hole, the valve flap being connected to the hole wall of the valve hole, the valve flap being configured to be able to rotate around the hole wall of the valve hole away from the sealed air cavity under the action of the pressure difference between the sealed air cavity and the air flow channel to open the valve hole, and the valve flap being able to rotate around the hole wall of the valve hole toward the sealed air cavity under the action of elastic force or elastic deformation to block the valve hole.

[0011] In an optional embodiment, the atomization assembly includes an atomization tube and a sealing tube, the sealing tube is connected to the radial outer side of the atomization tube, and the air flow channel includes an atomization channel located in the atomization tube and an air inlet channel located between the atomization tube and the sealing tube;

[0012] The atomizing assembly has an air inlet connected to the air inlet passage, and also has a connecting port connecting the air inlet passage and the atomizing passage. The air inlet and the connecting port are arranged at two ends of the extending direction of the air inlet passage.

[0013] In an optional embodiment, the atomization assembly includes a first seal and a second seal; in the extension direction of the atomization channel, the sealing tube seal is inserted between the first seal and the second seal, the atomization tube seal abuts between the first seal and the second seal, the air inlet is located on the second seal, and the connecting port is located on the first seal.

[0014] In an optional embodiment, the one-way valve is sealed and connected to the first sealing member, or the one-way valve and the first sealing member are integrally formed;

[0015] The atomization assembly also includes a bracket, which is connected to the sealing tube. The bracket is located on a side of the first sealing member that is away from the atomization channel in the extension direction of the atomization channel. The bracket is sealed in cooperation with the first sealing member, and the sealed air cavity is located between the bracket and the first sealing member.

[0016] In an optional embodiment, the atomizer tube includes a tube body and a first connecting member and a second connecting member sealedly connected at both ends of the tube body, the second connecting member extends toward the first connecting member in the extension direction of the atomization channel, the second connecting member is sealed and inserted into the first connecting member, and the second connecting member and the first connecting member are abutted against each other in the circumferential direction of the atomization channel; the air inlet channel is located between the second connecting member and the sealing tube.

[0017] According to the second aspect, an embodiment provides a heating non-combustion device, comprising a shell, a power supply assembly and an atomization assembly as described in any one of the above items, wherein the power supply assembly and the atomization assembly are both installed in the shell, and the power supply assembly comprises a pneumatic switch, and the control air port of the pneumatic switch is connected to the induction air port of the sealed air cavity.

[0018] In an optional embodiment, the shell includes an outer shell and a top cover connected to the outer shell, the outer shell and the top cover enclose an installation cavity, the atomization assembly is clamped and fixed in the installation cavity by the top cover and the outer shell, and the top cover has an air outlet connected to the airflow channel.

[0019] According to the atomizer assembly and the heating-not-burning device of the above-mentioned embodiment, the atomizer assembly has an air flow channel and a sealed air cavity, and an induction air port for communicating with the control air port of the pneumatic switch is arranged on the cavity wall of the sealed air cavity; the atomizer assembly includes a one-way valve, and the one-way valve is located between the sealed air cavity and the air flow channel, and the one-way valve has an open state and a closed state; in the open state, the air pressure in the air flow channel is lower than the air pressure outside the atomizer assembly, and the sealed air cavity is connected to the air flow channel through the one-way valve; in the closed state, the air pressure in the air flow channel is equal to or higher than the air pressure outside the atomizer assembly, and the sealed air cavity is separated from the air flow channel by the one-way valve; in this way, negative pressure in the air flow channel acts as When the air pressure in the air flow channel is lower than that in the sealed air cavity, external air can enter the atomizer assembly along the air flow channel, and the sealed air cavity is connected to the air flow channel through the opened one-way valve. The pressure change in the sealed air cavity triggers the pneumatic switch to control the normal operation of the atomizer assembly. When no air is introduced into the air flow channel, the aerosol generated in the air flow channel flows back along the air flow channel, and the air pressure in the air flow channel is greater than or equal to the air pressure outside the atomizer assembly. The one-way valve remains closed, so that the reflux aerosol will not enter the sealed air cavity, that is, the reflux aerosol will not condense and accumulate on the pneumatic switch to cause failure of the pneumatic switch, which helps to ensure the normal operation of the pneumatic switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the three-dimensional structure of a heating-without-burning device in an embodiment;

[0021] Figure 2 A top view of a heat-not-burn appliance in one embodiment;

[0022] Figure 3 for Figure 2 Middle AA section view;

[0023] Figure 4 for Figure 2 Middle BB section view;

[0024] Figure 5 Schematic diagram of the structure of the first sealing member in an embodiment when the valve hole is in a closed state.

[0025] In the figure: 1, atomizing tube; 11, cylinder; 12, first connecting member; 13, second connecting member; 131, outer cylinder; 14, atomizing channel; 141, first channel opening; 142, second channel opening; 2, sealing tube; 21, connecting ear; 22, air inlet channel; 23, inner flange 3, first sealing member; 31, first mounting groove; 32, annular protruding portion; 321, communication port; 33, one-way valve; 331, Protruding part; 332, valve hole; 333, valve body; 334, valve disc; 34, groove; 4, second sealing member; 41, second mounting groove; 42, air inlet; 5, bracket; 51, convex part; 511, inner concave surface; 52, buckle; 53, sealed air cavity; 531, sensing air port; 6, pneumatic switch; 7, shell; 71, outer shell; 72, top cover; 721, opening; 73, mounting cavity; 8, circuit board. DETAILED DESCRIPTION

[0026] The present application is further described in detail below by specific embodiments in conjunction with the accompanying drawings. Wherein similar elements in different embodiments adopt associated similar element numbers. In the following embodiments, many detailed descriptions are intended to enable the present application to be better understood. However, those skilled in the art can easily recognize that some of the features can be omitted in different situations, or can be replaced by other elements, materials, and methods. In some cases, some operations related to the present application are not shown or described in the specification, in order to avoid the core part of the present application being overwhelmed by too much description, and for those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations based on the description in the specification and the general technical knowledge in the art.

[0027] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate manner to form various implementations, and the operation steps involved in each embodiment can also be replaced or adjusted in a sequence in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for the purpose of clearly describing a certain embodiment and do not mean that the composition and / or sequence are necessary.

[0028] The serial numbers of the components in this document, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings).

[0029] The embodiment of the present application discloses an atomization assembly, which is mainly used in a heat-not-burn device to achieve heating of an aerosol-generating substrate and discharge of aerosol generated after the aerosol-generating substrate is heated.

[0030] Please refer to Figure 3 and Figure 4 The atomizer assembly disclosed in the embodiment of the present application has an air flow channel and a sealed air cavity 53. A sensing air port 531 is provided on the cavity wall of the sealed air cavity 53. The sensing air port 531 is used to communicate with the control air port of the pneumatic switch 6 in the power supply assembly. The pneumatic switch 6 can control the operation of the atomizer assembly according to the change of air pressure in the sealed air cavity 53.

[0031] The atomizer assembly includes a one-way valve 33, which is located between the sealed air cavity 53 and the air flow channel. The one-way valve 33 has an open state and a closed state. When the one-way valve 33 is in the open state, the air pressure in the air flow channel is lower than the air pressure outside the atomizer assembly, and the sealed air cavity 53 is connected to the air flow channel through the one-way valve 33. When the one-way valve 33 is in the closed state, the air pressure in the air flow channel is equal to or higher than the air pressure outside the atomizer assembly, and the sealed air cavity 53 is separated from the air flow channel by the one-way valve 33.

[0032] The air pressure outside the atomizer assembly is the air pressure outside the shell 7 of the heating non-burning device. During the operation of the atomizer assembly, negative pressure will be generated in the air flow channel. Under the action of the negative pressure in the air flow channel, the air pressure in the air flow channel is lower than the air pressure in the sealed air cavity 53, and the external air can enter the atomizer assembly along the air flow channel. The sealed air cavity 53 is connected to the air flow channel through the opened one-way valve 33. The pressure change in the sealed air cavity 53 triggers the pneumatic switch 6 to control the normal operation of the atomizer assembly. When no air is introduced into the air flow channel, the aerosol generated in the air flow channel flows back along the air flow channel, and the air pressure in the air flow channel is greater than or equal to the air pressure outside the atomizer assembly. The one-way valve 33 remains closed, so that the reflux aerosol will not enter the sealed air cavity 53, that is, the reflux aerosol will not condense and gather on the pneumatic switch 6 to cause the pneumatic switch 6 to fail, which helps to ensure the normal operation of the pneumatic switch 6.

[0033] In one embodiment, please continue to refer to Figure 3 and Figure 4The air flow channel includes an atomizing channel 14 and an air inlet channel 22 connected to the atomizing channel 14. Preferably, the sealed air cavity 53 can be connected to the air inlet channel 22 through a one-way valve 33. Of course, in other embodiments, the sealed air cavity 53 can also be connected to the atomizing channel 14 through a one-way valve 33. The air inlet channel 22 can be arranged on one side of the atomizing channel 14 in the extending direction of the atomizing channel 14, and the sealed air cavity 53 and the air inlet channel 22 can be located on the same side of the atomizing channel 14; of course, it is preferred as Figure 3 and Figure 4 The air inlet passage 22 shown in FIG. 1 is an annular passage arranged around the atomization passage 14 .

[0034] In one embodiment, please refer to Figure 3 and Figure 4 The atomizing assembly includes an atomizing tube 1 and a sealing tube 2. The atomizing channel 14 is located inside the atomizing tube 1. The sealing tube 2 is located radially outside the atomizing tube 1. The sealing tube 2 is coaxially arranged with the atomizing tube 1. The air inlet channel 22 is located between the sealing tube 2 and the atomizing channel 14. The air inlet channel 22 is an annular air channel, and the extension direction of the air inlet channel 22 is the same as the extension direction of the atomizing channel 14. The atomizing assembly has an air inlet 42 connected to the air inlet channel 22, and also has a connecting port 321 connecting the air inlet channel 22 and the atomizing channel 14. In the extension direction of the air inlet channel 22, the air inlet 42 and the connecting port 321 are arranged at both ends of the air inlet channel 22. Figure 3 and Figure 4 The path indicated by the hollow arrows shown in FIG. 1 is the flow path of the intake air flow in the atomization assembly.

[0035] The air inlet channel 22 and the atomization channel 14 can be staggered with the atomization channel 14 in the extension direction of the atomization channel 14. Of course, it is preferred that the air inlet channel 22 and the atomization channel 14 have an overlapping portion in the extension direction of the atomization channel 14, so as to reduce the size of the entire atomization assembly in the extension direction of the atomization channel 14; and the heat of the outer wall of the atomization tube 1 can also be used to heat the airflow flowing through the air inlet channel 22, so as to improve the heat utilization rate of the atomization assembly and reduce the energy consumption of the atomization assembly.

[0036] In one embodiment, the atomization assembly further includes a first seal 3 and a second seal 4. In the extension direction of the atomization channel 14, the sealing tube 2 is sealingly inserted between the first seal 3 and the second seal 4, the atomization tube 1 is sealingly abutted between the first seal 3 and the second seal 4, the air inlet 42 is located on the second seal 4, and the connecting port 321 is located on the first seal 3.

[0037] Please continue to refer to Figure 3 and Figure 4The first seal 3 and the second seal 4 are arranged at the two ends of the sealing tube 2 in the extension direction of the atomization channel 14. The first seal 3 has a first mounting groove 31 opening toward the sealing tube 2, and the second seal 4 has a second mounting groove 41 opening toward the sealing tube 2. The two ends of the sealing tube 2 are respectively located in the corresponding first mounting groove 31 and the second mounting groove 41. The barrel wall of the sealing tube 2 is sealed with the side wall of the first mounting groove 31 and the side wall of the second mounting groove 41. In this way, the two ends of the sealing tube 2 are sealed and inserted with the first seal 3 and the second seal 4 respectively.

[0038] In addition, the atomizer tube 1 is located between the first seal 3 and the second seal 4, and the atomizer tube 1 is sealed against the first seal 3 and the second seal 4 in the extension direction of the atomizer channel 14, respectively. The second seal 4 has an opening that penetrates the second seal 4 in the extension direction of the atomizer channel 14, and the opening is communicated with the atomizer channel 14. The edge of the opening on the second seal 4 is sealed against the end face of the atomizer tube 1. The air inlet 42 communicated with the air inlet channel 22 can be provided on the second seal 4, such as at the edge of the opening of the second seal 4, so that external air can enter the air inlet channel 22 from the air inlet 42. Of course, in other embodiments, the air inlet 42 can also be provided on the barrel wall of the sealing barrel 2 or on the barrel wall of the atomizer tube 1.

[0039] The corresponding first sealing member 3 is provided with an annular protrusion 32 extending toward the atomizing tube 1 on the bottom wall of the first mounting groove 31. The annular protrusion 32 is in sealing contact with the tube wall of the atomizing tube 1. The communication port 321 can be provided on the annular protrusion 32 to achieve communication between the air inlet channel 22 and the atomizing channel 14. Of course, in other embodiments, the communication port 321 can also be provided on the tube wall of the atomizing tube 1 to meet the requirement that the air inlet channel 22 is communicated with the atomizing channel 14 through the communication port 321.

[0040] In this embodiment, a first seal 3 and a second seal 4 are provided in the atomizer assembly, and the two seals are respectively sealed with the sealing tube 2 and the atomizer tube 1, which can simplify the parts structure of the entire atomizer assembly, facilitate the processing of the various parts in the atomizer assembly, and facilitate the assembly of the atomizer assembly.

[0041] In some other embodiments, the second sealing member 4 may be eliminated. For example, one end of the atomizing tube 1 close to the air outlet of the atomizing channel 14 in its extension direction may be connected to one end of the sealing tube 2 close to the air outlet of the atomizing channel 14, and the other end of the atomizing tube 1 and the other end of the sealing tube 2 are both against the first sealing member 3 in the extension direction of the atomizing channel 14, thereby simplifying the assembly process of the entire atomizing assembly.

[0042] In one embodiment, for the atomizer barrel 1, the aerosol generating substrate can be inserted into the atomization channel 14 along the opening at one end of the atomizer barrel 1, so as to heat the aerosol generating substrate through the heating element provided at the atomizer barrel 1. In order to ensure that the aerosol generating substrate is inserted in place, the atomizer barrel 1 can be provided to include a barrel body 11 and a first connecting member 12 and a second connecting member 13 sealedly connected to both ends of the barrel body 11.

[0043] Please continue to refer to Figure 3 and Figure 4 The barrel 11 is a cylindrical structure, the atomization channel 14 is located in the barrel 11, and the two ends of the barrel 11 are sealed and connected to the first connecting member 12 and the second connecting member 13 respectively. The barrel 11 is abutted against the first sealing member 3 in the extension direction of the atomization channel 14 through the first connecting member 12, and the barrel 11 is also abutted against the second sealing member 4 in the extension direction of the atomization channel 14 through the second connecting member 13. The first connecting member 12 and the second connecting member 13 are both provided with a socket connected to the end of the cylinder 11, and a sealing structure is provided between the first connecting member 12 and the cylinder 11 and between the second connecting member 13 and the cylinder 11 to prevent the aerosol in the atomizing cylinder 11 from overflowing; the socket of the first connecting member 12 is a blind hole, and an air hole connecting the atomizing channel 14 and the air inlet channel 22 is provided on the bottom wall of the blind hole, and the socket of the second connecting member 13 is a through hole connected to the atomizing channel 14, and the aerosol generated in the atomizing channel 14 can be discharged along the through hole of the second connecting member 13; the sealing tube 2 is provided with an inner flange 23 extending radially inward at the end of the first connecting member 12 in its extension direction, and the inner flange 23 is abutted against the first connecting member 12 in the extension direction of the atomizing channel 14 to limit the first connecting member 12 from moving in the direction away from the atomizing channel 14 in the extension direction of the atomizing channel 14.

[0044] In addition, a second connecting member 13 is arranged on the radial outer side of the cylinder body 11 and has an outer cylinder portion 131 extending toward the first connecting member 12. The outer cylinder portion 131 on the second connecting member 13 can be sealed and inserted with the first connecting member 12, so that the air inlet channel 22 is located between the sealing cylinder 2 and the outer cylinder portion 131; and the outer cylinder portion 131 on the second connecting member 13 can also be abutted against the first connecting member 12 in the circumferential direction of the atomization channel 14. For example, a groove is provided on the outer cylinder portion 131 and a protrusion is provided on the first connecting member 12. The protrusion cooperates with the groove to limit the relative movement of the first connecting member 12 and the second connecting member 13 in the circumferential direction of the atomization channel 14. In this way, the assembly of the atomizer tube 1 is achieved, and the first connecting member 12 and the second connecting member 13 are sealed and inserted, and the first connecting member 12 and the second connecting member 13 are abutted against each other in the circumferential direction of the atomization channel 14. This helps to ensure the position accuracy of the cylinder body 11, avoid the cylinder body 11 from tilting and causing the aerosol generating matrix to be improperly inserted, and also helps to achieve a modular design of the entire atomization assembly.

[0045] Of course, in other embodiments, in order to facilitate the assembly of the atomizer assembly, the atomizer tube 1 may also include only the tube body 11 , one end of the tube body 11 in its extension direction abuts against the first seal 3 , and the other end abuts against the second seal 4 .

[0046] In one embodiment, please refer to Figure 3 and Figure 4 The heating element may be connected to the wall of the barrel 11. For example, the heating element may include a heating film. The heating element is attached to the wall of the barrel 11. The lead wire connected to the heating element passes through the first connecting member 12 and the first sealing member 3 to facilitate the connection between the heating element and the power supply component. The heating element can transfer heat to the aerosol generating substrate through the barrel 11 to achieve heating of the aerosol generating substrate.

[0047] In other embodiments, a heat exchange element may be further provided in the cylinder 11, and a heating element is provided between the heat exchange element and the cylinder 11. The heat of the heating element is transferred to the heat exchange element, and a heat exchange air duct is provided in the heat exchange element. After the airflow is heated in the heat exchange air duct, it enters the aerosol generating substrate to heat the aerosol generating substrate.

[0048] In one embodiment, please refer to Figure 3 and Figure 4 The atomizing channel 14 is provided with a first channel opening 141 and a second channel opening 142 located at both ends of the atomizing channel 14 in its extension direction. The atomizing channel 14 is connected to the air inlet channel 22 through its first channel opening 141, and the second channel opening 142 is used for aerosol discharge. The sealed air cavity 53 is arranged on the side where the first channel opening 141 is located in the extension direction of the atomizing channel 14, which helps to reduce the distance between the sealed air cavity 53 and the second channel opening 142, and can increase the pressure difference between the atomizing channel 14 and the sealed air cavity 53 under the negative pressure state in the atomizing channel 14, thereby ensuring that the one-way valve 33 can be opened normally.

[0049] Of course, in some other embodiments, the sealed air cavity 53 is also arranged radially outside the air inlet channel 22 in the flow direction of the inlet air flow, or the sealed air cavity 53 is arranged on the side of the second sealing member 4 facing away from the atomizing channel 14 in the extension direction of the atomizing channel 14, even if the sealed air cavity 53 is close to the position of the air inlet port 42 connected to the air inlet channel 22. As long as the pressure difference between the air flow channel and the sealed air cavity 53 can ensure the normal opening of the one-way valve 33 under the negative pressure state of the air flow channel, the sealed air cavity 53 can be arranged at any position of the air flow channel.

[0050] In one embodiment, please continue to refer to Figure 3 and Figure 4, the atomization assembly is provided to further include a bracket 5, which is arranged on the side of the first sealing member 3 facing away from the atomization channel 14 in the extension direction of the atomization channel 14. The first sealing member 3 has a groove 34 facing the bracket 5 in the extension direction of the atomization channel 14, and the bracket 5 has a convex portion 51 that seals with the groove wall surface of the groove 34, and the convex portion 51 has an inner concave surface 511 facing the first sealing member 3. After the convex portion 51 and the groove 34 are inserted into place, the first sealing member 3 and the bracket 5 are enclosed at the inner concave surface 511 to form a cavity, which is the sealed air cavity 53, and the induction air port 531 on the cavity wall of the sealed air cavity 53 can be set on the first sealing member 3 or the bracket 5. Of course, in other embodiments, the convex portion 51 can also be set on the first sealing member 3, and the convex portion 51 with the inner concave surface 511 can be set on the bracket 5.

[0051] In order to ensure the sealing performance of the sealed air cavity 53, the bracket 5 is connected to the sealing cylinder 2. For example, a connecting ear 21 protruding toward the radial outer side of the sealing cylinder 2 can be provided on the cylinder wall of the sealing cylinder 2, and a perforation is provided on the connecting ear 21. A buckle 52 is provided on the bracket 5, so that the buckle 52 passes through the perforation, and the buckle 52 and the end face of the perforation facing away from the bracket 5 are abutted in the extension direction of the atomization channel 14 to achieve the connection between the bracket 5 and the sealing cylinder 2. In other embodiments, there can be no direct connection between the bracket 5 and the sealing cylinder 2, and the bracket 5 can be connected to the housing 71 of the heating non-combustion device, so that the bracket 5 and the first sealing member 3 are abutted in the extension direction of the atomization channel 14, thereby ensuring the sealing performance of the sealed air cavity 53. In other embodiments, the setting of the bracket 5 can also be cancelled, and the sealed air cavity 53 is formed in the first sealing member 3.

[0052] In one embodiment, please refer to Figure 3 and Figure 4 A one-way valve 33 is formed integrally with the first sealing member 3. The first sealing member 3 may be a rubber member or a plastic member with elastic deformation capability. It can be understood that the one-way valve 33 is arranged on the first sealing member 3. The portion of the first sealing member 3 that seals with the atomizing tube 1 and the sealing tube 2 may be arranged to be located radially outside the atomizing channel 14. The one-way valve 33 is arranged corresponding to the atomizing channel 14 in the extension direction of the atomizing channel 14.

[0053] In other embodiments, a one-way valve 33 may be provided to be connected to the first sealing member 3. For example, the first sealing member 3 may be provided with a mounting hole, and the one-way valve 33 may be sealed and installed in the mounting hole. The one-way valve 33 may include a valve body 333, a plug and an elastic member. The valve body 333 has a valve hole 332. Under the action of the elastic member, the plug blocks the valve hole 332. The pressure difference between the airflow channel and the sealed air cavity 53 can overcome the elastic force of the elastic member to drive the plug to move and thus open the valve hole 332.

[0054] In the embodiment where the one-way valve 33 and the first sealing member 3 are integrally formed, please continue to refer to Figures 3 to 5 The one-way valve 33 is a thin-film structure as a whole. The one-way valve 33 includes a valve body 333 and a plurality of valve flaps 334. The valve body 333 is an annular structure. The through hole in the center of the valve body 333 is the valve hole 332. The valve flap 334 is connected to the hole wall of the valve hole 332. The number of valve flaps 334 can be two, three or more than four. The plurality of valve flaps 334 are arranged around the valve hole 332. The valve flap 334 is configured to be able to rotate around the hole wall of the valve hole 332 in the direction away from the sealing air cavity 53 under the action of the pressure difference between the air flow channel and the sealing air cavity 53 to open the valve hole 332, so that the sealing air cavity 53 is connected with the air flow channel; the valve flap 334 is also configured to be able to rotate around the hole wall of the valve hole 332 toward the sealing air cavity 53 under the action of the elastic deformation of the rubber member of the first sealing member 3 to block the valve hole 332.

[0055] Specifically, before the atomizer assembly works, the air pressure in the sealed air chamber 53, the air pressure in the air flow channel and the air pressure outside the atomizer assembly are equal. In the absence of external force, the valve flap 334 blocks the valve hole 332. During the operation of the atomizer assembly, when the user draws from the heat-not-burn device, a negative pressure is generated in the air flow channel. At the same time, the air pressure in the air flow channel is lower than the air pressure in the sealed air chamber 53. Under the pressure difference between the air flow channel and the sealed air chamber 53, the valve flap 334 rotates in the direction away from the sealed air chamber 53 to open the valve hole 332, so that the air flow channel is connected with the sealed air chamber 53. After the valve hole 332 is opened, the gas in the sealed air chamber 53 enters the air flow channel along the valve hole 332, and the air pressure in the sealed air chamber 53 decreases. As the outside gas enters the air flow channel from the air inlet 42, the outside gas can also flow along the air flow channel. The air channel and the valve hole 332 enter the sealed air cavity 53 to increase the air pressure in the sealed air cavity 53 until the air pressure in the sealed air cavity 53, the air pressure in the air flow channel and the air pressure outside the atomizer assembly are equal, and the valve flap 334 rotates toward the sealed air cavity 53 under the action of its own elastic deformation force to close the valve hole 332; since the control air port of the pneumatic switch 6 is connected with the sensing air port 531 of the sealed air cavity 53, the pneumatic switch 6 can control the heating of the heater in the atomizer assembly and calculate the number of puffs according to the air pressure change in the sealed air cavity 53 detected by the control air port, thereby satisfying the normal operation of the pneumatic switch 6.

[0056] When the user does not inhale the heating non-burning device, the outside gas will not enter the air flow channel. The aerosol generated by the atomization channel 14 will cause the air pressure in the air flow channel to be greater than the air pressure outside the atomization component. The aerosol will flow back along the air flow channel toward the air inlet 42. Since the valve hole 332 of the one-way valve 33 is in a closed state due to the sealing effect of the valve flap 334, the refluxed aerosol will not enter the sealed air cavity 53 through the valve hole 332, and will not contact the control air port of the pneumatic switch 6 along the sensing air port 531. In this way, the sealed air cavity 53 and the air flow channel can be separated by the one-way valve 33, which can prevent the aerosol from flowing back and contacting the pneumatic switch 6 and causing the pneumatic switch 6 to fail.

[0057] Since the sealed air cavity 53 is located on the side where the first channel opening 141 is located in the extending direction of the atomizing channel 14, during the use of the atomizing assembly, the sealed air cavity 53 is located on the lower side of the atomizing channel 14 in the gravity direction. After the reflux aerosol in the atomizing channel 14 is condensed, it will flow back along the channel wall of the atomizing channel 14 to the location of the sealed air cavity 53. In order to prevent the condensed aerosol from gathering at the valve hole 332 of the one-way valve 33, in one embodiment, please refer to Figure 3 and Figure 4 The one-way valve 33 may be provided with a protruding portion 331 facing the first channel opening 141 in the extending direction of the atomizing channel 14, and the valve hole 332 may be provided on the protruding portion 331, so that the liquid dripping after the aerosol condenses will slide along the side wall of the protruding portion 331 toward the relatively recessed position, thereby preventing the condensed aerosol liquid from accumulating at the position of the valve hole 332, and further preventing the aerosol from contacting the pneumatic switch 6, thereby ensuring the normal operation of the pneumatic switch 6.

[0058] Of course, in other embodiments, the sealed air cavity 53 and the atomization channel 14 can be staggered in a plane perpendicular to the extension direction of the atomization channel 14, that is, the one-way valve 33 and the atomization channel 14 can be staggered, and a recess can be provided at a position of the first sealing member 3 corresponding to the first channel opening 141, so that the liquid aerosol dripping from the channel wall of the atomization channel 14 will gather in the recess, and the aerosol can be prevented from contacting the valve hole 332 and the pneumatic switch 6.

[0059] The present application also discloses a heating without burning device. Figures 1 to 4 The heating non-combustion device includes a shell 7, a power supply assembly and an atomization assembly in any of the above-mentioned embodiments, the power supply assembly and the atomization assembly are both installed in the shell 7, the power supply assembly includes a pneumatic switch 6, in the embodiment in which the sensing air port 531 of the sealed air cavity 53 is arranged on the first sealing member 3, the pneumatic switch 6 can be installed on the first sealing member 3 as a whole, and the control air port of the pneumatic switch 6 extends into the sensing air port 531 on the first sealing member 3, so as to detect the air pressure change in the sealed air cavity 53 by connecting the control air port with the sealed air cavity 53.

[0060] The power supply assembly also includes a circuit board 8 and a battery (the battery is not shown in the figure). The circuit board 8 and the battery are both installed in the housing 7 , and the battery and the pneumatic switch 6 are both electrically connected to the circuit board 8 .

[0061] In one embodiment, please continue to refer to Figures 1 to 4 The shell 7 includes an outer shell 71 and a top cover 72 connected to the outer shell 71. The outer shell 71 and the top cover 72 are enclosed to form an installation cavity 73 in the shell 7. The atomizer assembly and the power supply assembly are both located in the installation cavity 73. The atomizer assembly as a whole is clamped and fixed in the installation cavity 73 by the top cover 72 and the outer shell 71. During assembly, the atomizer assembly as a whole can be modularly assembled, and then the entire atomizer assembly can be installed in the shell 7 through the installation hole of the top cover 72 on the outer shell 71, and finally the top cover 72 is fixed to the outer shell 71, so that the atomizer assembly is press-fitted and fixed in the installation cavity 73; in addition, the top cover 72 is provided with an opening 721 connected to the atomizer channel 14 in the air flow channel to facilitate the insertion of the aerosol generating matrix and the discharge of the generated aerosol.

[0062] Of course, in other embodiments, the shell 7 can also be provided with a first shell and a second shell arranged separately, and the first shell is fixedly connected to the second shell to enclose a mounting cavity 73 in the shell 7. In addition, the bracket 5 and the sealing tube 2 in the atomizer assembly are respectively fixedly connected to the first shell or the second shell, and the relative position of the bracket 5 and the sealing tube 2 in the atomizer assembly is ensured by the processing accuracy of the first shell or the second shell. In addition, at least part of the atomizer assembly, such as the second sealing member 4 and the second connecting member 13, is clamped and fixed by the sealing tube 2 and the first shell or the second shell, so as to ensure the sealing performance of the sealed air cavity 53 and the structural stability of the entire atomizer assembly in the shell 7.

[0063] The above specific examples are used to illustrate the present invention, which are only used to help understand the present invention and are not intended to limit the present invention. For those skilled in the art of the present invention, some simple deductions, deformations or substitutions can be made based on the idea of ​​the present invention.

Claims

1. An atomizing assembly, characterized in that: The atomizing assembly has an air flow channel and a sealed air cavity, and a sensing air port for communicating with a control air port of a pneumatic switch is arranged on the cavity wall of the sealed air cavity; The atomizer assembly includes a one-way valve, which is located between the sealed air cavity and the air flow channel, and the one-way valve has an open state and a closed state; in the open state, the air pressure in the air flow channel is lower than the air pressure outside the atomizer assembly, and the sealed air cavity is connected to the air flow channel through the one-way valve; in the closed state, the air pressure in the air flow channel is equal to or higher than the air pressure outside the atomizer assembly, and the sealed air cavity is separated from the air flow channel by the one-way valve.

2. The atomizer assembly according to claim 1, characterized in that: The airflow channel includes an atomization channel and an air inlet channel connected to the atomization channel. The atomization channel has a first channel opening and a second channel opening located at both ends of its extension direction. The first channel opening is connected to the air inlet channel, and the second channel opening is used for aerosol discharge. The sealed air cavity is located on the side of the first channel opening where the first channel opening is located in the extension direction of the atomization channel.

3. The atomizer assembly according to claim 2, characterized in that: The one-way valve has a protruding portion facing the first channel opening in the extending direction of the atomizing channel, and the one-way valve has a valve hole, which is located on the protruding portion.

4. The atomizer assembly according to claim 1, characterized in that: The one-way valve includes a valve body and a plurality of valve flaps, the valve body having a valve hole, the valve flap being connected to the hole wall of the valve hole, the valve flap being configured to be able to rotate around the hole wall of the valve hole away from the sealed air cavity under the action of the pressure difference between the sealed air cavity and the air flow channel to open the valve hole, and the valve flap being able to rotate around the hole wall of the valve hole toward the sealed air cavity under the action of elastic force or elastic deformation to block the valve hole.

5. The atomizer assembly according to any one of claims 1 to 4, characterized in that: The atomizing assembly comprises an atomizing tube and a sealing tube, wherein the sealing tube is connected to the radially outer side of the atomizing tube, and the air flow channel comprises an atomizing channel located in the atomizing tube and an air inlet channel located between the atomizing tube and the sealing tube; The atomizing assembly has an air inlet connected to the air inlet passage, and also has a connecting port connecting the air inlet passage and the atomizing passage. The air inlet and the connecting port are arranged at two ends of the extending direction of the air inlet passage.

6. The atomizer assembly according to claim 5, characterized in that: The atomization assembly includes a first seal and a second seal; in the extension direction of the atomization channel, the sealing tube seal is inserted between the first seal and the second seal, the atomization tube seal abuts between the first seal and the second seal, the air inlet is located on the second seal, and the communication port is located on the first seal.

7. The atomizing assembly according to claim 6, characterized in that: The one-way valve is sealed and connected to the first sealing member, or the one-way valve and the first sealing member are integrally formed; The atomization assembly also includes a bracket, which is connected to the sealing tube. The bracket is located on a side of the first sealing member that is away from the atomization channel in the extension direction of the atomization channel. The bracket is sealed in cooperation with the first sealing member, and the sealed air cavity is located between the bracket and the first sealing member.

8. The atomizer assembly according to claim 5, characterized in that: The atomizer tube includes a tube body and a first connector and a second connector sealedly connected at both ends of the tube body, the second connector extends toward the first connector in the extension direction of the atomization channel, the second connector is sealed and inserted into the first connector, and the second connector and the first connector are abutted against each other in the circumferential direction of the atomization channel; the air inlet channel is located between the second connector and the sealing tube.

9. A heating without burning device, characterized in that: It comprises a shell, a power supply assembly and an atomizer assembly as described in any one of claims 1 to 8, wherein the power supply assembly and the atomizer assembly are both installed in the shell, and the power supply assembly comprises a pneumatic switch, and the control air port of the pneumatic switch is connected to the induction air port of the sealed air cavity.

10. The heating without burning device according to claim 9, characterized in that: The shell comprises an outer shell and a top cover connected to the outer shell, the outer shell and the top cover enclose a mounting cavity, the atomizer assembly is clamped and fixed in the mounting cavity by the top cover and the outer shell, and the top cover has an air outlet connected to the airflow channel.

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