Aerosol generating device

Abstract

An aerosol generating device includes: a housing formed with an accommodating tank with an opening, the accommodating tank accommodating an aerosol generating substrate; a cover body detachably connected to the housing; and a seal member that at least partially extends into the opening and is hermetically connected to a tank wall of the accommodating tank. The seal member is formed with a through hole configured to fit with the cover body so as to discharge air in the accommodating tank. The cover body is in sealing fit with the through hole.

Description

CROSS-REFERENCE TO PRIOR APPLICATION

[0001] Priority is claimed to Chinese Patent Application No. 202510102272.0, filed on January 21,2025, the entire disclosure of which is hereby incorporated by reference here.FIELD

[0002] This application relates to the technical field of aerosol generation, and more particularly, to an aerosol generating device.BACKGROUND

[0003] An aerosol generating device is a type of small electronic device that generates aerosols by heating an aerosol generating substrate. In the related technology, the aerosol generating device is formed with an accommodating tank and a liquid injection hole. The accommodating tank is configured to accommodate a liquid aerosol generating substrate, and the liquid injection hole is configured to inject an aerosol generating substrate. Furthermore, the aerosol generating device is provided with a seal member for sealing the liquid injection hole and the accommodating tank. However, after the aerosol generating substrate is injected into the accommodating tank and a cover body needs to cover the accommodating tank, a liquid extrusion phenomenon easily occurs, leading to risks of liquid leakage, poor sealing, and the like.SUMMARY

[0004] In an embodiment, the present disclosure provides an aerosol generating device, comprising: a housing formed with an accommodating tank with an opening, the accommodating tank being configured to accommodate an aerosol generating substrate; a cover body detachably connected to the housing; and a seal member that at least partially extends into the opening and is hermetically connected to a tank wall of the accommodating tank, wherein the seal member is formed with a through hole configured to fit with the cover body so as to discharge air in the accommodating tank, and wherein the cover body is in sealing fit with the through hole.BRIEF DESCRIPTION OF THE DRAWINGS

[0005] Subject matter of the present disclosure will be described in even greater detail below based on the exemplary figures. All features described and / or illustrated herein can be used alone or combined in different combinations. The features and advantages of various embodiments will become apparent by reading the following detailed description with reference to the attached drawings, which illustrate the following:

[0006] FIG. 1 is a schematic diagram of a three-dimensional structure of an aerosol generating device according to an implementation of this application;

[0007] FIG. 2 is a schematic structural diagram of the aerosol generating device of FIG. 1 in a top view;

[0008] FIG. 3 is a schematic diagram of a cross-sectional structure of the aerosol generating device of FIG. 2 in the direction A-A;

[0009] FIG. 4 is a partially enlarged diagram of the aerosol generating device of FIG. 3;

[0010] FIG. 5 is a schematic diagram of a three-dimensional structure of a seal member of an aerosol generating device according to this application;

[0011] FIG. 6 is a schematic structural diagram of an aerosol generating device in a first stage of an assembling process according to an implementation of this application;

[0012] FIG. 7 is a partially enlarged cross-sectional diagram of the aerosol generating device of FIG. 6;

[0013] FIG. 8 is a schematic structural diagram of an aerosol generating device in a second stage of an assembling process according to an implementation of this application;

[0014] FIG. 9 is a partially enlarged cross-sectional diagram of the aerosol generating device of FIG. 8;

[0015] FIG. 10 is a schematic diagram of a three-dimensional structure of a cover body according to an implementation of this application;

[0016] FIG. 11 is a schematic structural diagram of an aerosol generating device from which a cover body is removed according to this application;

[0017] FIG. 12 is a schematic diagram of a three-dimensional structure of a support member according to an implementation of this application; and

[0018] FIG. 13 is a flowchart of a manufacturing method for an aerosol generating device according to an implementation of this application.DETAILED DESCRIPTION

[0019] In an embodiment, the present disclosure provides an aerosol generating device and is at least used to solve the problem of poor sealing caused by the liquid extrusion phenomenon.

[0020] In an embodiment, the present disclosure provides an aerosol generating device that includes a housing, a cover body, and a seal member. The housing is formed with an accommodating tank with an opening. The accommodating tank is configured to accommodate an aerosol generating substrate. The cover body is detachably connected to the housing. The seal member at least partially extends into the opening and is hermetically connected to the tank wall of the accommodating tank. The seal member is formed with a through hole configured to fit with the cover body to discharge air in the accommodating tank. The cover body is in sealing fit with the through hole.

[0021] In the aerosol generating device of this implementation of this application, the through hole fits with the cover body to discharge the air in the accommodating tank, and is hermetically connected to the cover body, to avoid extrusion on the liquid level of an aerosol generating substrate due to extrusion on the air by the cover body and the seal member during covering between the cover body and the housing, thus lowering the risks of liquid leakage and poor sealing. Meanwhile, through the sealing fit between the seal member and the tank wall, and the sealing fit between the hole wall of the through hole and the cover body, the dimensional chain is simple, thus improving the sealing reliability under an extreme condition. In addition, the aerosol generating substrate can be added into the accommodating tank through the opening of the accommodating tank. The space is sufficient and is convenient for a liquid injection operation. The efficiency can be improved, and liquid extrusion and liquid leakage can be reduced.

[0022] In some implementations, the cover body includes a cover portion and a seal column; the cover portion covers the opening of the accommodating tank; the seal column protrudes from the cover portion in a first direction; and the first direction is a direction in which the cover portion points to the accommodating tank.

[0023] The through hole includes an exhaust hole section and a seal hole section that are communicated to each other in the first direction; the seal hole section is closer to the accommodating tank than the exhaust hole section; the seal column is threaded in the exhaust hole section and the seal hole section; the seal hole section is closer to the bottom wall of the accommodating tank than the exhaust hole section; and the seal column forms a gap with the hole wall of the exhaust hole section and is hermetically connected to the hole wall of the seal hole section.

[0024] In this way, in a process of assembling the cover body and the housing, first, the tank wall of the accommodating tank is in sealing fit with the seal member. The seal column is spaced apart from the seal hole section in the first direction and forms the gap with the hole wall of the exhaust hole section. In this case, the gap is communicated to the accommodating tank and the atmosphere, and the air in the accommodating tank can be discharged through the gap. Later, in a case that the cover body is subjected to the external force, the cover body and the seal member generate relative displacement in the first direction. The seal column extends into the seal hole section until the hermetical connection with the hole wall of the seal hole section is completed. Meanwhile, the communication between the gap and the accommodating tank is cut off. In this design, the excess air in the accommodating tank can be discharged before the seal member completely seals the accommodating tank, to avoid extrusion caused by the air on a liquid aerosol generating substrate as much as possible, thus avoiding liquid leakage and ensuring the good sealing effect.

[0025] In some implementations, the seal member includes a first seal portion and a second seal portion; the first seal portion abuts against the end surface of the housing corresponding to the opening; and the second seal portion extends into the accommodating tank and is hermetically connected to the tank wall of the accommodating tank.

[0026] Before the cover body is connected to the housing, the seal column is spaced apart from the seal hole section by a distance in the first direction; the gap is communicated to the accommodating tank and the external environment of the accommodating tank; and the cover body is configured to move relative to the housing in the first direction after being subjected to an external force, to connect the cover body to the housing and allow the seal column to extend into the seal hole section and be hermetically connected to the hole wall of the seal hole section.

[0027] In this way, before the cover body is connected to the housing, the seal column is spaced apart from the seal hole section by the distance in the first direction. When the second seal portion extends into the accommodating tank, the accommodating tank can be communicated to the external environment through the gap. When the cover body is subjected to the external force (a cover pressing force), the cover body moves relative to the housing and the seal member in the first direction. The cover body and the housing complete the connection, and the seal column and the seal hole section complete the hermetical connection, thereby discharging the excess air in the accommodating tank in the process of assembling the cover body, the seal member, and the housing, then completing the sealing on the accommodating tank, and lowering the risks of liquid extrusion and liquid leakage.

[0028] In some implementations, the aerosol generating device includes a support member; the support member is arranged on the side of the seal member facing away from the accommodating tank, and is formed with a limiting hole communicated to the exhaust hole section; the seal column sequentially passes through the limiting hole, the exhaust hole section, and the seal hole section; and the aperture of the limiting hole is less than the aperture of the communication position between the exhaust hole section and the limiting hole.

[0029] In this way, the limiting hole communicated to the exhaust hole section is formed in the support member, and the aperture of the limiting hole is less than the aperture of the communication position between the exhaust hole section and the limiting hole. The seal column sequentially passes through the limiting hole and the exhaust hole section, so that before the seal column extends into the exhaust hole section, the support member can support the seal column to maintain the distance away from the seal hole section in the first direction, thereby ensuring the exhaust effect.

[0030] In some implementations, the seal column is hermetically connected to the hole wall of the limiting hole.

[0031] In this way, through the hermetical connection between the seal column and the hole wall of the limiting hole, the sealing effect on the positions, through which the seal column passes, on the limiting hole and the exhaust hole section is enhanced, which further improves the sealing reliability.

[0032] In some implementations, the seal column includes a first seal section and a second seal section sequentially in the first direction; the first seal section is connected to the cover portion, and the radial size of the first seal section is greater than the radial size of the second seal section; the first seal section extends into the limiting hole; and the second seal section forms the gap with the hole wall of the exhaust hole section and is in sealing fit with the seal hole section.

[0033] In this way, the radial size of the first seal section is greater than the radial size of the second seal section, the aperture of the limiting hole is less than the aperture of the communication position between the exhaust hole section and the limiting hole, and the first seal section is far away from the accommodating tank relative to the second seal section. In the process of assembling the cover body and the housing, the first seal section is first maintained outside the limiting hole, and the second seal section extends into the limiting hole and the exhaust hole section and is spaced apart from the seal hole section. The seal member can partially extend into the accommodating tank, and the gap is communicated to the accommodating tank and is communicated to the external environment through the limiting hole, thereby helping to discharge the air inside the accommodating tank. Later, when the cover body is subjected to the cover pressing force, the seal column moves in the first direction toward the seal hole section. The first seal section extends into the limiting hole, and the second seal section extends into the seal hole section, so that the limiting hole plays a role in limiting to an extent.

[0034] In some implementations, a guide surface is formed at the connection position between the first seal section and the second seal section, and the guide surface extends in a converging manner from the first seal section to the second seal section.

[0035] In this way, the guide surface is formed at the connection position between the first seal section and the second seal section. The guide surface extends in the converging manner from the first seal section to the second seal section, so that when the seal column moves toward the seal hole section in the first direction, the guide surface can guide and help the first seal section to extend from the outside of the limiting hole into the limiting hole.

[0036] In some implementations, the support member is formed with an exhaust slot located at the edge of the limiting hole, and the exhaust slot is communicated to the gap.

[0037] In this way, the exhaust slot is formed in the edge of the limiting hole and is communicated to the gap, so that before the first seal section extends into the exhaust hole section, the gap is communicated to the external environment through the exhaust slot. This helps to discharge the air in the accommodating tank along the gap and the exhaust slot.

[0038] In some implementations, the aperture of the exhaust hole section has a decrease trend in the first direction, and the aperture of the seal hole section is less than or equal to the minimum aperture of the exhaust hole section.

[0039] In this way, the aperture of the exhaust hole section has the decrease trend in the first direction. The end of the exhaust hole section away from the seal hole section has the maximum aperture, and the end communicated to the seal hole section has the minimum aperture. The aperture of the seal hole section is less than or equal to the aperture of the communication position between the exhaust hole section and the seal hole section. Therefore, the hole wall of the exhaust hole section and the outer peripheral surface of the seal column are at least spaced apart in the radial direction to form the gap, and effective sealing can be achieved when the seal column extends from the exhaust hole section into the seal hole section in the first direction.

[0040] In some implementations, the seal member is an elastic component; and the seal member is configured to undergo elastic deformation when the seal member partially extends into the accommodating tank and the cover body is subjected to an external force, for the seal member and the seal column to generate relative displacement in the first direction.

[0041] In this way, the seal member undergoes the compressive elastic deformation in a case that the seal member partially extends into the accommodating tank and the cover body is subjected to the external force. This promotes the seal column to move within the exhaust hole section in the first direction and complete the hermetical connection with the hole wall of the seal hole section, so that the assembling process is relatively simple, and the seal member can achieve a buffering effect between the cover body and the accommodating tank.

[0042] In some implementations, a plurality of seal columns and a plurality of through holes are provided, and the seal columns are in one-to-one corresponding fit with the through holes.

[0043] In this way, through the one-to-one corresponding fit between the plurality of groups of seal columns and through holes, the structural stability is improved and the exhaust effect is further optimized, which is conducive to fully discharging the air in the accommodating tank and lowering the risk of liquid extrusion.

[0044] In some implementations, a first convex rib is formed on the outer peripheral surface of the seal member extending into the accommodating tank; and / or, a second convex rib is formed on the hole wall of the through hole.

[0045] In this way, through the interference fit between the first convex rib and the tank wall of the accommodating tank, and / or through the partial interference fit between the second convex rib and the cover body, it is convenient to complete the hermetical connection during covering. In addition, a lateral sealing manner simplifies the dimensional chain, which is conducive to improving the sealing reliability under extreme conditions such as drop, high temperature, and low temperature.

[0046] In some implementations, the housing is formed with a clamping structure; the cover body is provided with a clamping portion; and the clamping structure is clamped with the clamping portion to fixedly connect the cover body to the housing.

[0047] In this way, the cover body is fixedly connected to the housing through the clamping between the clamping structure and the clamping portion, thus ensuring the stable connection between the cover body and the housing. Furthermore, the assembling operation is convenient and simple. In addition, the proper clamping between the clamping structure and the clamping portion can serve as sign information to confirm the completion of the connection between the cover body and the housing. It is convenient for an operator to confirm the completion of the connection between the cover body and the housing. Meanwhile, the seal member completes the sealing on the accommodating tank.

[0048] In some implementations, the cover body includes a cover portion and an enclosure plate; the enclosure plate is connected to the edge of the cover portion and surrounds the end surface of the accommodating tank formed with the opening; and the seal member is erected inside the enclosure plate and covers the opening.

[0049] In this way, the enclosure plate is connected to the edge of the cover portion and surrounds the end surface of the accommodating tank formed with the opening, and the seal member is erected in the enclosure plate, so that the seal member and the cover body remain relatively fixed before the connection between the cover body and the housing is completed. Therefore, the seal member can be assembled to the housing together with the cover body, thus simplifying the mounting steps and facilitating the alignment between the seal member and the opening.

[0050] In some implementations, a heating assembly is arranged inside the accommodating tank; the heating assembly includes an exhaust pipeline threaded in the seal member; and the seal member is in sealing fit with the outer wall surface of the exhaust pipeline.

[0051] In this way, the exhaust pipeline of the heating assembly is threaded in the seal member, and the seal member is in sealing fit with the outer wall surface of the exhaust pipeline, thus lowering the risk of leakage of aerosols or the aerosol generating substrate from the exhaust pipeline.

[0052] In some implementations, the cover body is formed with an outlet channel, and the outlet channel is communicated to the exhaust pipeline to the external environment of the cover body.

[0053] In this way, the cover body is formed with the outlet channel, and the outlet channel is communicated to the exhaust pipeline and the external environment of the cover body, thus enabling the cover body to function as a suction nozzle, fully utilizing the structural space, and eliminating additional assembling procedures.

[0054] In some implementations, the seal member is formed with a vent hole; a third convex rib is formed on the hole wall of the vent hole; and the exhaust pipeline is threaded in the vent hole.

[0055] In this way, the third convex rib is formed on the hole wall of the vent hole, and the exhaust pipeline is threaded in the vent hole. The outer peripheral surface of the exhaust pipeline can be in interference fit with the third convex rib to ensure the good sealing effect on the exhaust pipeline, and the assembling is simple.

[0056] The additional aspects and advantages of this application will be partially provided in the following descriptions, some of which will become apparent from the following descriptions, or learned through the practice of this application.Descriptions of reference numerals of main elements:

[0057] 100: aerosol generating device; 10: housing; 11: accommodating tank; 12: opening; 13: clamping structure; 14: guide slot; 20: cover body; 21: cover portion; 210: outlet channel; 22: seal column; 221: first seal section; 222: second seal section; 223: guide surface; 23: clamping portion; 24: enclosure plate; 241: cavity; 25: positioning column; Z: first direction; 30: seal member; 301: through hole; 31: exhaust hole section; 32; seal hole section; 322: second convex rib; 33: gap; 34: first seal portion; 35: second seal portion; 351; first convex rib; 36: vent hole; 363: third convex rib; 40: support member; 41: limiting hole; 42: structural rib; 43: limiting rib; 44: exhaust slot; 45: inhalation air hole; 46: positioning hole; 50: heating assembly; 51: exhaust pipeline; 511: liquid inlet; 60: battery; and 70: control assembly.

[0058] The implementations of this application are described in detail below, and examples of the implementations are shown in accompanying drawings, where the same or similar elements or the elements having same or similar functions are denoted by the same or similar reference numerals throughout the description. The implementations described below with reference to the accompanying drawings are exemplary and used only for explaining this application, and should not be construed as a limitation on this application.

[0059] In the descriptions of this application, it should be understood that orientations or positional relationships indicated by "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "anticlockwise", and the like are orientations or positional relationships as shown in the drawings, and are only for the purpose of facilitating and simplifying the descriptions of this application instead of indicating or implying that devices or elements indicated need to have particular orientations, and be constructed and operated in the particular orientations, whereby these terms are not construed as limiting this application. In addition, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, features defined as "first" and "second" explicitly or implicitly include one or more of the features. In the descriptions of this application, "a plurality of" means two or more, unless otherwise definitely and specifically limited.

[0060] In the description of this application, it should be noted that, unless otherwise expressly specified and defined, the terms "mount", "connection", "connect" should be understood in a broad sense, for example, a fixed connection, a detachable connection, integrated connection, a mechanical connection, an electrical connection, communication with one another, direct connection, indirect connection through an intermediate medium, an internal communication between two elements, or an interaction between two elements. Those of ordinary skill in the art can understand the specific meanings of the above terms in this application according to specific situations.

[0061] In this application, unless otherwise explicitly stipulated and restricted, that a first feature is "on" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are in indirect contact through another feature. In addition, that the first feature is "on", "above", or "over" the second feature includes that the first feature is directly or diagonally above the second feature, or merely indicates that a level of the first feature is greater than that of the second feature. That the first feature is "below", "beneath", and "under" of the second feature indicates that the first feature is directly or diagonally below the second feature, or merely indicates that a level of the first feature is less than that of the second feature.

[0062] The following disclosure provides many different implementations or examples to implement different structures of this application. To simplify the disclosure of this application, components and settings of specific examples are described below. Certainly, they are merely examples and are not intended to limit this application. Furthermore, this application may repeat reference numerals and / or reference letters in different examples. Such repetition is for purposes of simplicity and clarity and does not indicate a relationship between the various implementations and / or settings discussed. In addition, this application provides examples of various specific processes and materials, but a person of ordinary skill in the art can recognize the application of other processes and / or the usage of other materials.

[0063] Referring to FIG. 1 and FIG. 2, the aerosol generating device 100 is a structure that can generate aerosols by applying resistance heating, electromagnetic heating, microwave heating, laser irradiation, infrared light irradiation, ultrasonic oscillation, mechanical oscillation, or the like to an aerosol generating substrate. The aerosol generating substrate is a plant leaf product capable of generating aerosols after being treated and heated. The form of the aerosol generating substrate may be an all-solid state, a semi-solid state, or a liquid state.

[0064] The aerosol generating substrate is heated and atomized to generate aerosols. The aerosols may be visible or invisible and may include vapor (such as gaseous fine particulate matters, typically liquid or solid at the room temperature) and liquid droplets of air and condensed vapor. A user can inhale the aerosols into the oral cavity, the nasal cavity, or the lungs through the mouth or the nose. The aerosols inhaled into the respiratory system of the user can be used for various purposes such as food, medicine, health care, and entertainment.

[0065] In the related technology, during the assembling process of the aerosol generating device, it is necessary inject a liquid aerosol generating substrate into the accommodating tank in the assembling process and ensures the sealing performance of the accommodating tank. The aerosol generating substrate is directly injected from the opening of the accommodating tank. The space is large and is convenient for operation. In this design, a silicone pad needs to be arranged between a suction nozzle and the end surface of an accommodating tank formed with an opening, thus ensuring the sealing of the end surface. Therefore, there is a high requirement for the flatness of the silicone pad and the end surface, and the dimensional chain is also long. In addition, the silicone pad is compressed by 0.3-0.6 mm during assembling, thus causing the suction nozzle and a housing forming the accommodating tank to remain under a stress. In the extreme situations such as drop, high temperature, and low temperature, the poor sealing easily occurs.

[0066] To simplify the dimensional chain of a seal member and ensure the sealing reliability under the extreme condition, a liquid injection hole can be provided, and a seal pad and a seal column can be used to provide lateral sealing for the accommodating tank and the liquid injection hole, respectively. However, the liquid injection hole has the small aperture, so that a high requirement for the liquid injection precision is put forward. Furthermore, it is easy to extrude the liquid level of the aerosol generating substrate, leading to the problem of liquid leakage.

[0067] In view of this, an implementation of this application provides an aerosol generating device 100 with a laterally sealed accommodating tank 11, which can retain the liquid injection manner via an opening 12. Meanwhile, the air in the accommodating tank 11 can be discharged before a seal member 30 implements sealing, to lower the risk of liquid extrusion and liquid leakage.

[0068] Referring to FIG. 3 and FIG. 4, the aerosol generating device 100 includes a housing 10, a cover body 20, and a seal member 30. The housing 10 is formed with an accommodating tank 11 with an opening 12. The accommodating tank 11 is configured to accommodate an aerosol generating substrate. The cover body 20 is detachably connected to the housing 10. The seal member 30 at least partially extends into the opening 12 and is hermetically connected to the tank wall of the accommodating tank 11. The seal member 30 is formed with a through hole 301 configured to fit with the cover body 20 to discharge air in the accommodating tank 11. The cover body 20 is in sealing fit with the through hole 301.

[0069] In the aerosol generating device 100 of this implementation of this application, the through hole 301 fits with the cover body 20 to discharge the air in the accommodating tank 11, and is then hermetically connected to the cover body 20, to avoid extrusion on the liquid level of an aerosol generating substrate due to extrusion on the air by the cover body 20 and the seal member 30 during covering between the cover body 20 and the housing 10, thus lowering the risks of liquid leakage and poor sealing. Meanwhile, through the sealing fit between the seal member 30 and the tank wall, and the sealing fit between the hole wall of the through hole 301 and the cover body 20, the dimensional chain is simple, thus improving the sealing reliability under an extreme condition. In addition, the aerosol generating substrate can be added into the accommodating tank 11 through the opening 12 of the accommodating tank 11. The space is sufficient and is convenient for a liquid injection operation. The efficiency can be improved, and liquid extrusion and liquid leakage can be reduced.

[0070] In some implementations, the cover body 20 includes a cover portion 21 and a seal column 22. The cover portion 21 covers the opening 12 of the accommodating tank 11. The seal column 22 protrudes from the cover portion 21 in a first direction Z. The first direction Z is a direction in which the cover portion 21 points to the accommodating tank 11.

[0071] The through hole 301 includes an exhaust hole section 31 and a seal hole section 32 that are communicated to each other in the first direction Z. The seal hole section 32 is closer to the bottom wall of the accommodating tank 11 than the exhaust hole section 31. The seal column 22 is threaded in the exhaust hole section 31 and the seal hole section 32. The seal column 22 forms a gap 33 with the hole wall of the exhaust hole section 31 and is hermetically connected to the hole wall of the seal hole section 32.

[0072] In the aerosol generating device 100 of this implementation of this application, the exhaust hole section 31 and the seal hole section 32 that are communicated to each other in the first direction Z are formed in the seal member 30, the seal hole section 32 is closer to the bottom wall of the accommodating tank 11 than the exhaust hole section 31, the seal column 22 of the cover body 20 extends into the exhaust hole section 31 and the seal hole section 32, and the seal column 22 forms the gap 33 with the hole wall of the exhaust hole section 31 and is hermetically connected to the hole wall of the seal hole section 32. Thus, in a process of assembling the cover body 20 and the housing 10, first, the tank wall of the accommodating tank 11 is in sealing fit with the seal member 30. The seal column 22 is spaced apart from the seal hole section 32 in the first direction Z and forms the gap 33 with the hole wall of the exhaust hole section 31. In this case, the gap 33 is communicated to the accommodating tank 11 and the atmosphere, and the air in the accommodating tank 11 can be discharged through the gap 33. Later, in a case that the cover body 20 is subjected to the external force, the cover body 20 and the seal member 30 generate relative displacement in the first direction Z. The seal column 22 extends into the seal hole section 32 until the hermetical connection with the hole wall of the seal hole section 32 is completed. Meanwhile, the communication between the gap 33 and the accommodating tank 11 is cut off. In this design, the excess air in the accommodating tank 11 can be discharged before the seal member 30 completely seals the accommodating tank 11, to avoid extrusion caused by the air on a liquid aerosol generating substrate as much as possible, thus avoiding liquid leakage and ensuring the good sealing effect.

[0073] Meanwhile, through the sealing fit between the seal member 30 and the tank wall, and the sealing fit between the seal column 22 and the hole wall of the seal hole section 32, it ensures that the dimensional chain is simple, thus improving the sealing reliability under an extreme condition. In addition, the aerosol generating substrate can be added into the accommodating tank 11 through the opening 12 of the accommodating tank 11. The space is sufficient and is convenient for a liquid injection operation. The efficiency can be improved, and liquid extrusion and liquid leakage can be reduced.

[0074] For ease of explanation, in this application, the first direction Z is defined as an up-down direction. A direction in which the cover body 20 points to the housing 10 is from top to bottom, and vice versa, a direction in which the housing 10 points to the cover body 20 is from bottom to top. The cover body 20 can be assembled with the housing 10 from top to bottom.

[0075] This implementation of this application is applicable to a type of aerosol generating device 100 pre-configured with an aerosol generating substrate in the manufacturing process, and is particularly applicable to device types that use liquid or semi-solid aerosol generating substrates. Before the cover body 20 and the housing 10 are assembled, the aerosol generating substrate is injected into the accommodating tank 11 from the opening 12. After the injection of the aerosol generating substrate is completed, the cover body 20 and the seal member 30 are assembled onto the housing 10 and seal the accommodating tank 11.

[0076] Specifically, the outer contour shape of the cross section of the housing 10 matches the outer contour shape of the cross section of the cover portion 21, so that the cover portion 21 can cover the end surface of the housing 10 corresponding to the opening 12. The cross-sectional shape of the accommodating tank 11 may be the same or different from the outer contour shape of the cross section of the housing 10. The outer contour shape of the cross section of the portion of the seal member 30 extending into the accommodating tank 11 is the same as and matched in size with the cross-sectional shape of the accommodating tank 11. The outer contour shape of the cross section of the housing 10 includes, but is not limited to, a circle, an ellipse, a triangle, a quadrangle, a polygon, a star shape, a runway shape, or another irregular shape. The cross-sectional shape of the accommodating tank 11 can be a circle, an ellipse, a triangle, a quadrangle, a polygon, a star shape, a runway shape, or another irregular shape. The cross section refers to a section taken in the transverse direction perpendicular to the first direction Z.

[0077] In the process of assembling the cover body 20 and the housing 10, the seal member 30 partially passes through the opening 12 in the first direction Z and extends into the accommodating tank 11. The outer peripheral surface of the portion of the seal member 30 extending into the accommodating tank 11 can be in interference fit with the accommodating tank 11 to ensure the sealing effect. For the convenience of the extension of the seal member 30, the contour lines of the cross sections of both the seal member 30 and the accommodating tank 11 can be curved lines. For example, the cross section of the accommodating tank 11 and the opening 12 are both elliptical. The outer contour shape of the cross section of the housing 10 and the outer contour shape of the cross section of the cover portion 21 are also elliptical.

[0078] The seal member 30 is arranged inside the cover body 20, specifically located within a range in which the cover portion 21 is opposite to the opening 12. The exhaust hole section 31 and the seal hole section 32 can penetrate through the seal member 30 together in the first direction Z, and the exhaust hole section 31 is located above the seal hole section 32. The cross-sectional shapes of both the exhaust hole section 31 and the seal hole section 32 are matched with the cross-sectional shape of the seal column 22. For example, the seal column 22 is a cylinder, and the cross-sectional shapes of both the exhaust hole section 31 and the seal column 22 are circular. The diameter of the exhaust hole section 31 may be greater than the diameter of the seal column 22, and the hole wall of the exhaust hole section 31 is spaced apart from and forms a gap 33 with the outer peripheral surface of the seal column 22. The seal column 22 can be in interference fit with the seal hole section 32, and the minimum diameter of the seal column 22 is slightly less than the diameter of the seal column 22.

[0079] Referring to FIG. 4, FIG. 5, and FIG. 9, in some implementations, the seal member 30 includes a first seal portion 34 and a second seal portion 35. The first seal portion 34 abuts against the end surface of the housing 10 corresponding to the opening 12, and the second seal portion 35 extends into the accommodating tank 11 and is hermetically connected to the tank wall of the accommodating tank 11.

[0080] Before the cover body 20 is connected to the housing 10, the seal column 22 is spaced apart from the seal hole section 32 by a distance in the first direction Z. The gap 33 is communicated to the accommodating tank 11 and the external environment of the accommodating tank 11. The cover body 20 is configured to move relative to the housing 10 in the first direction Z after being subjected to an external force, to connect the cover body 20 to the housing 10 and allow the seal column 22 to extend into the seal hole section 32 and be hermetically connected to the hole wall of the seal hole section 32.

[0081] In this way, before the cover body 20 is connected to the housing 10, the seal column 22 is spaced apart from the seal hole section 32 by the distance in the first direction Z. When the second seal portion 35 extends into the accommodating tank 11, the accommodating tank 11 can be communicated to the external environment through the gap 33. When the cover body 20 is subjected to the external force (a cover pressing force), the cover body 20 moves relative to the housing 10 and the seal member 30 in the first direction Z. The cover body 20 and the housing 10 complete the connection, and the seal column 22 and the seal hole section 32 complete the hermetical connection, thereby discharging the excess air in the accommodating tank 11 in the process of assembling the cover body 20, the seal member 30, and the housing 10, then completing the sealing on the accommodating tank 11, and lowering the risks of liquid extrusion and liquid leakage.

[0082] Specifically, the seal member 30 can be in a disk shape as a whole, and the first seal portion 34 and the second seal portion 35 are two portions of the seal member 30 that are stacked up and down and connected. The second seal portion 35 extends into the accommodating tank 11 from the opening 12 and is hermetically connected to the tank wall of the accommodating tank 11. The cross-sectional shape of the second seal portion 35 is the same as the cross-sectional shape of the accommodating tank 11 and can be in interference fit with the tank wall of the accommodating tank 11 in the radial direction. For example, the cross-sectional shape of the accommodating tank 11 and the opening 12 are both elliptical, and the cross-sectional shape of the second seal portion 35 is also elliptical.

[0083] Optionally, the housing 10 encloses the accommodating tank 11, and the diameter of the outer contour of the housing 10 enclosing the opening 12 is greater than the diameter of the opening 12. The edge of the first seal portion 34 in the transverse direction can go beyond the second seal portion 35 and abut against the end surface of the housing 10 enclosing the opening 12.

[0084] Optionally, a cavity 241 is formed inside the cover body 20. The cavity 241 is communicated to the external environment of the aerosol generating device 100. The seal member 30 is arranged in the cavity 241. Before the cover body 20 is connected to the housing 10, the gap 33 can be communicated to the cavity 241. In the process of assembling the housing 10 and the cover body 20, the cover body 20 and the seal member 30 gradually move down in the first direction Z until the connection between the cover body 20 and the housing 10 is completed. In this process, the relative positions of the seal column 22 and the seal member 30 are in the following three stages in sequence:

[0085] In a first stage, as shown in FIG. 6 and FIG. 7, the cover body 20 and the seal member 30 are separated from the housing 10, and the seal column 22 extends into the exhaust hole section 31 and is spaced apart from the seal hole section 32 by a distance in the first direction Z. In the first stage, the gap 33 between the seal column 22 and the hole wall of the exhaust hole section 31 is upward communicated to the cavity 241 inside the cover body 20, and can be communicated to the external environment of the aerosol generating device 100 through the cavity 241.

[0086] In a second stage, as shown in FIG. 8 and FIG. 9, the connection between the cover body 20 and the housing 10 is not completed. The first seal portion 34 abuts against the end surface of the housing 10 corresponding to the opening 12. The second seal portion 35 extends into the accommodating tank 11. The second seal portion 35 can be in interference fit with the tank wall of the accommodating tank 11 to implement the hermetical connection. In the second stage, the gap 33 is upward communicated to the external environment and is downward communicated to the seal hole section 32. The lower end of the seal hole section 32 is communicated to the accommodating tank 11, so that the air in the accommodating tank 11 can be discharged along the seal hole section 32→ the gap 33→ the cavity 241 inside the cover body 20 to the external environment of the aerosol generating device 100, usually to the atmospheric environment. From the first stage to the second stage, the relative positions of the seal column 22 and the seal member 30 can remain unchanged, and the gap 33 remains being communicated to the accommodating tank 11 and the external environment, to ensure that the air in the accommodating tank 11 is fully discharged.

[0087] In a third stage, as shown in FIG. 3 and FIG. 4, an operator applies a cover pressing force to the cover body 20, or can apply a pushing force to the housing 10, to cause the cover body 20 to move downward relative to the housing 10 and complete the connection with the housing 10. In the third stage, the position of the seal member 30 can be fixed relative to the housing 10, and the seal column 22 moves downward relative to the seal member 30, extends into the seal hole section 32, and is hermetically connected to the hole wall of the seal hole section 32. In this case, the gap 33 is isolated from the accommodating tank 11 by the seal column 22 and the seal hole section 32, and the seal member 30 also completes the sealing on the accommodating tank 11.

[0088] Referring to FIG. 4, FIG. 7, and FIG. 9, in some implementations, the aerosol generating device 100 includes a support member 40. The support member 40 is arranged on the side of the seal member 30 facing away from the accommodating tank 11, and is formed with a limiting hole 41 communicated to the exhaust hole section 31. The seal column 22 sequentially passes through the limiting hole 41, the exhaust hole section 31, and the seal hole section 32. The aperture of the limiting hole 41 is less than the aperture of the communication position between the exhaust hole section 31 and the limiting hole 41.

[0089] In this way, the limiting hole 41 communicated to the exhaust hole section 31 is formed in the support member 40, and the aperture of the limiting hole 41 is less than the aperture of the communication position between the exhaust hole section 31 and the limiting hole 41. The seal column 22 sequentially passes through the limiting hole 41 and the exhaust hole section 31, so that before the seal column 22 extends into the exhaust hole section 31, the support member 40 can support the seal column 22 to maintain the distance from the seal column and the seal hole section 32 in the first direction Z, thereby ensuring the exhaust effect.

[0090] Specifically, the support member 40 is fixedly connected to the seal member 30. The support member 40 and the seal member 30 can be separate parts and are fixedly connected to each other by an adhesive, a fixing member, in a clamping connection manner, or the like. The support member 40 and the seal member 30 may alternatively be integrally formed as a whole. The support member 40 and the seal member 30 can be stacked up and down and are jointly arranged inside the cover body 20. Further, the support member 40 is connected to the end surface of the side of the first seal portion 34 away from the second seal portion 35.

[0091] In the first stage and the second stage, the seal column 22 passes through the limiting hole 41 and extends into the exhaust hole section 31, and the outer peripheral surface of the seal column 22 also forms an exhaust gap 33 with the limiting hole 41. Since the aperture of the limiting hole 41 is less than the aperture of the communication position between the exhaust hole section 31 and the limiting hole 41, the exhaust gap 33 is communicated to the gap 33 to ensure the exhaust effect. In addition, since the aperture of the limiting hole 41 is less than the aperture of the communication position between the exhaust hole section 31 and the limiting hole 41, the support member 40 can play a role in supporting the cover body 20 through the seal column 22, and the cover body 20 is erected above the seal member 30 and maintains a distance from the cover portion 21 to the seal member 30, thereby ensuring the communication between the gap 33 and the accommodating tank 11, as well as the external environment.

[0092] Optionally, the surface of the side of the support member 40 facing away from the accommodating tank 11 abuts against the inner wall surface of the cover body 20 in the third stage, that is, when the connection between the cover body 20 and the housing 10 is completed.

[0093] Optionally, the support member 40 includes a plurality of structural ribs 42 and limiting ribs 43. The structural ribs 42 are configured to be connected to the limiting ribs 43. A hollow is formed between the plurality of structural ribs and the plurality of limiting ribs 43 to provide space for other components inside the aerosol generating device 100. The limiting ribs 43 may be annular, and the center of one or more annular limiting ribs 43 may form the limiting hole 41.

[0094] In some implementations, the seal column 22 is hermetically connected to the hole wall of the limiting hole 41.

[0095] In this way, through the hermetical connection between the seal column 22 and the hole wall of the limiting hole 41, the sealing effect on the positions, through which the seal column 22 passes, on the limiting hole 41 and the exhaust hole section 31 is enhanced, which further improves the sealing reliability.

[0096] Specifically, in the first stage and the second stage, the seal column 22 and the hole wall of the limiting hole 41 form the exhaust gap 33 and are not fixedly connected to each other. In the third stage, when the connection between the cover body 20 and the housing 10 is completed, the seal column 22 moves downward relative to the seal member 30 and the support member 40. In the second stage, the portion of the seal column 22 located outside the limiting hole 41 extends into the limiting hole 41 and is hermetically connected to the limiting hole 41. In the third stage and during the use of the aerosol generating device 100, the side of the gap 33 close to the accommodating tank 11 in the first direction Z is closed due to the hermetical connection between the seal column 22 and the hole wall of the seal hole section 32, and the side of the gap 33 away from the accommodating tank 11 in the first direction Z is closed due to the hermetical connection between the seal column 22 and the hole wall of the limiting hole 41.

[0097] Referring to FIG. 4, FIG. 7, and FIG. 9, in some implementations, the seal column 22 sequentially includes a first seal section 221 and a second seal section 222 in the first direction Z. The first seal section 221 is connected to the cover portion 21, and the radial size of the first seal section 221 is greater than the radial size of the second seal section 222. The first seal section 221 extends into the limiting hole 41, and the second seal section 222 forms the gap 33 with the hole wall of the exhaust hole section 31 and is in sealing fit with the seal hole section 32.

[0098] In this way, the radial size of the first seal section 221 is greater than the radial size of the second seal section 222, the aperture of the limiting hole 41 is less than the aperture of the communication position between the exhaust hole section 31 and the limiting hole 41, and the first seal section 221 is far away from the accommodating tank relative to the second seal section 221. In the process of assembling the cover body 20 and the housing 10, the first seal section 221 is first maintained outside the limiting hole 41, and the second seal section 222 extends into the limiting hole 41 and the exhaust hole section 31 and is spaced apart from the seal hole section 32. The seal member 30 can partially extend into the accommodating tank 11, and the gap 33 is communicated to the accommodating tank 11 and is communicated to the external environment through the limiting hole 41, thereby helping to discharge the air inside the accommodating tank 11. Later, when the cover body 20 is subjected to the cover pressing force, the seal column 22 moves in the first direction Z toward the seal hole section 32. The first seal section 221 extends into the limiting hole 41, and the second seal section 222 extends into the seal hole section 32, so that the limiting hole 41 plays a role in limiting to an extent.

[0099] Specifically, the cross-sectional shape of the seal column 22 includes, but is not limited to, a circle, an ellipse, a quadrangle, a polygon, and the like. The cross-sectional shapes of both the first seal section 221 and the second seal section 222 may be the same or different. The radial sizes of the first seal section and the second seal section 222 refer to the sizes in a direction perpendicular to the axial direction of the seal column 22, that is, perpendicular to the first direction Z. For example, the cross-sectional shape of the first seal section 221 is circular, the cross-sectional shape of the second seal section 222 is also circular, and the diameter of the second seal section is less than the diameter of the first seal section 221. The first seal section 221 and the second seal section 222 can be coaxial. Correspondingly, the limiting hole 41 is a circular hole, and the limiting hole 41, the exhaust hole section 31, and the seal hole section 32 are all coaxial with the seal column 22.

[0100] As shown in FIG. 7 and FIG. 9, in the first stage and the second stage, the diameter of the first seal section 221 is slightly greater than the diameter of the limiting hole 41. The first seal section 221 is exposed outside the limiting hole 41, while the second seal section 222 is threaded in the limiting hole 41. The lower end of the second seal section 222 extends into the exhaust hole section 31. The second seal section 222 forms the gap 33 with the hole wall of the exhaust hole section 31, and the gap 33 is communicated to the seal hole section 32 and the atmospheric environment. In the second stage, the gap 33 is communicated to the accommodating tank 11 through the seal hole section 32.

[0101] As shown in FIG. 4, in the third stage, the seal column 22 moves downward relative to the seal member 30, and the first seal section 221 downward enters the limiting hole 41. The limiting hole 41 can deform under the pressing of the first seal section 221. Due to the pressing between the first seal section 221 and the hole wall of the limiting hole 41, the first seal section 221 can be in sealing fit with the limiting hole 41.

[0102] In the third stage, the second seal section 222 moves downward relative to the seal member 30 and at least partially exits the limiting hole 41, and the lower end of the second seal section 222 extends into the seal hole section 32 through the exhaust hole section 31. In the third stage, the second seal section 222 is partially located in the exhaust hole section 31 and forms a gap 33 with the hole wall of the exhaust hole section 31. The lower end of the second seal section 222 is hermetically connected to the hole wall of the seal hole section 32.

[0103] Referring to FIG. 7, FIG. 9, and FIG. 10, in some implementations, a guide surface 223 is formed at the connection position between the first seal section 221 and the second seal section 222, and the guide surface 223 extends in a converging manner from the first seal section 221 to the second seal section 222.

[0104] In this way, the guide surface 223 is formed at the connection position between the first seal section 221 and the second seal section 222. The guide surface 223 extends in the converging manner from the first seal section 221 to the second seal section 222, so that when the seal column 22 moves toward the seal hole section 32 in the first direction Z, the guide surface 223 can guide and help the first seal section 221 to extend from the outside of the limiting hole 41 into the limiting hole 41.

[0105] Specifically, the guide surface 223 can be surrounded between the first seal section 221 and the second seal section 222 in the circumferential direction of the seal column 22, and extends in the converging manner from the first seal section 221 to the second seal section 222. The guide surface 223 can be a straight slope or a curved surface, and the guide surface 223 or the tangential direction of the guide surface 223 forms an angle of less than 90° with respect to the first direction Z.

[0106] Referring to FIG. 9, FIG. 11, and FIG. 12, in some implementations, the support member 40 is formed with an exhaust slot 44 located at the edge of the limiting hole 41, and the exhaust slot 44 is communicated to the gap 33.

[0107] In this way, the exhaust slot 44 is formed in the edge of the limiting hole 41 and is communicated to the gap 33, so that before the first seal section 221 extends into the exhaust hole section 31, the gap 33 is communicated to the external environment through the exhaust slot 44. This helps to discharge the air in the accommodating tank 11 along the gap 33 and the exhaust slot 44.

[0108] Specifically, the exhaust slot 44 can be formed by upward partially hollowing the support member 40 from the end surface of the communication position between the limiting hole 41 and the exhaust hole section 31. The cavity 241 communicated to the atmosphere is formed in the cover body 20. The support member 40 is arranged in the cavity 241, and the exhaust slot 44 is communicated to the cavity 241, so that the gap 33 is communicated to the atmosphere through the exhaust slot 44 and the cavity 241 in the second stage.

[0109] Optionally, the support member 40 includes an annular limiting rib 43. The limiting hole 41 penetrating through the support member 40 is formed in the center of the limiting rib 43. The notch of the exhaust slot 44 is formed in the end surface of the limiting rib 43 facing toward the exhaust hole section 31, and the exhaust slot 44 can penetrate through the inner and outer surfaces of the limiting rib 43 in the radial direction of the limiting hole 41.

[0110] Optionally, a plurality of exhaust slots 44 are provided. The plurality of exhaust slots 44 are arranged in a spacing manner in the circumferential direction of the limiting hole 41. In this way, the exhaust efficiency can be improved.

[0111] Referring to FIG. 4 and FIG. 9, in some implementations, the aperture of the exhaust hole section 31 has a decrease trend in the first direction Z, and the aperture of the seal hole section 32 is less than or equal to the minimum aperture of the exhaust hole section 31.

[0112] In this way, the aperture of the exhaust hole section 31 has the decrease trend in the first direction Z. The end of the exhaust hole section 31 away from the seal hole section 32 has the maximum aperture, and the end communicated to the seal hole section 32 has the minimum aperture. The aperture of the seal hole section 32 is less than or equal to the aperture of the communication position between the exhaust hole section 31 and the seal hole section 32. Therefore, the hole wall of the exhaust hole section 31 and the outer peripheral surface of the seal column 22 are at least spaced apart in the radial direction to form the gap 33, and effective sealing can be achieved when the seal column 22 extends from the exhaust hole section 31 into the seal hole section 32 in the first direction Z.

[0113] Specifically, the aperture of the exhaust hole section 31 can gradually decrease from top to bottom in the first direction Z. The exhaust hole section 31 may be in an inverted conical shape. In some embodiments, the aperture of the limiting hole 41 is less than the maximum aperture of the exhaust hole section 31.

[0114] Optionally, the seal hole section 32 is a straight hole. The hole wall of the seal hole section 32 is connected to the hole wall of the exhaust hole section 31, and the aperture of the exhaust hole section 31 at the connection position is minimum. The diameter of the seal hole section 32 can be slightly less the aperture of the connection position between the exhaust hole section 31 and the seal hole section 32.

[0115] In some embodiments, the diameter of the first seal section 221 and the diameter of the limiting hole 41 match and are both less than the maximum diameter of the exhaust hole section 31. The diameter of the second seal section 222 is less than or equal to the minimum diameter of the exhaust hole section 31, and the diameter of the second seal section 222 is slightly greater than or equal to the diameter of the seal hole section 32.

[0116] In some implementations, a plurality of seal columns 22 and a plurality of through holes 301 are provided, and the seal columns 22 are in one-to-one corresponding fit with the through holes 301.

[0117] In this way, through the one-to-one corresponding fit between the plurality of groups of seal columns 22 and through holes 301, the structural stability is improved and the exhaust effect is further optimized, which is conducive to fully discharging the air in the accommodating tank 11 and lowering the risk of liquid extrusion.

[0118] Specifically, the plurality of seal columns 22 are distributed in a spacing manner on the cover portion 21, and the distribution positions of the plurality of seal columns 22 can adapt to the shape and structure of the cover portion 21 and other structures inside the cover body 20. The spacing distance between two adjacent seal columns 22 can be equal or not equal. For example, the outer contour shape of the cross section of the cover portion 21 is elliptical. Three seal columns 22 are provided. Two seal columns 22 are opposite to and spaced apart from the other seal column 22 in the long axis direction of the cross section of the cover portion 21. The two seal columns 22 located on the same side of the cover portion 21 in the long axis direction are arranged in parallel in the short axis direction.

[0119] The plurality of through holes 301 are distributed in a spacing manner on the seal member 30 in the radial direction of the through holes 301. Each through hole 301 includes a group of exhaust hole section 31 and seal hole section 32. Each group of exhaust hole section 31 and seal hole section 32 is directly opposite to a corresponding seal column 22 in the first direction Z.

[0120] In some embodiments, a plurality of limiting holes 41 are formed in the support member 40. Each limiting hole 41 is correspondingly located directly above a group of exhaust hole section 31 and seal hole section 32. In this way, after each seal column 22 is aligned with a corresponding limiting hole 41, the seal column 22 is pushed into the exhaust hole section 31 and the seal hole section 32. This is conducive to positioning the relative positions of the cover body 20 and the seal member 30.

[0121] Referring to FIG. 10 and FIG. 11, in some other embodiments, the cover body 20 further includes a positioning column 25. The positioning column 25 extends from the cover portion 21 toward the housing 10 in the first direction Z. The support member 40 is formed with a positioning hole 46 that directly faces the positioning column 25 in the first direction Z. The positioning column 25 is at least partially inserted into the positioning hole 46. The end portion of the positioning column 25 away from the cover portion 21 is accommodated in the positioning hole 46 and can be spaced apart or abut against the seal member 30. In this way, the positioning hole 46 can work together with the limiting hole 41 to achieve a positioning effect.

[0122] Referring to FIG. 4 and FIG. 9, in some implementations, a first convex rib 351 is formed on the outer peripheral surface of the seal member 30 extending into the accommodating tank 11; and / or, a second convex rib 322 is formed on the hole wall of the through hole 301.

[0123] In this way, through the interference fit between the first convex rib 351 and the tank wall of the accommodating tank 11, and / or through the partial interference fit between the second convex rib 322 and the cover body 20, the hermetical connection can be conveniently completed during covering. In addition, a lateral sealing manner simplifies the dimensional chain, which is conducive to improving the sealing reliability under extreme conditions such as drop, high temperature, and low temperature.

[0124] Specifically, the first convex rib 351 can extend in the circumferential direction of the accommodating tank 11. For example, the first convex rib 351 continuously extends in the circumferential direction of the accommodating tank 11 and surrounds the second seal portion 35 by a circle. One, two, three, or more first convex ribs 351 can be provided. Two or more first convex ribs 351 are arranged in the axial direction of the seal member 30.

[0125] Each second convex rib 322 is formed on the seal hole section 32, and is in interference fit with the end portion of the seal column 22 away from the cover portion 21.

[0126] The position of the second convex rib 322 on the hole wall of the seal hole section 32 in the first direction Z matches a magnitude of the relative displacement generated between the seal member 30 and the cover body 20 when the cover body 20 is connected to the housing 10. For example, the second convex rib 322 is formed at the connection position between the exhaust hole section 31 and the seal hole section 32. In the second stage, the end portion of the seal column 22 away from the cover portion 21 extends into the exhaust hole section 31, and is spaced apart from the second convex rib 322 in the first direction Z by a distance. In the third stage, the cover body 20 or the housing 10 is subjected to an external force, and the cover body 20 and the seal member 30 generate relative displacement, so that the end portion of the seal column 22 away from the cover portion 21 extends into the seal hole section 32 and is hermetically connected to the first convex rib 351.

[0127] In some implementations, the seal member 30 is an elastic component. The seal member 30 is configured to undergo elastic deformation when the seal member 30 partially extends into the accommodating tank 11 and the cover body 20 is subjected to an external force, for the seal member 30 and the seal column 22 to generate relative displacement in the first direction Z.

[0128] In this way, the seal member 30 undergoes the compressive elastic deformation in a case that the seal member 30 partially extends into the accommodating tank 11 and the cover body 20 is subjected to the external force. This promotes the seal column 22 to move within the exhaust hole section 31 in the first direction Z and complete the hermetical connection with the hole wall of the seal hole section 32, so that the assembling process is relatively simple, and the seal member 30 can achieve a buffering effect between the cover body 20 and the accommodating tank 11.

[0129] Specifically, in the second stage of the process of assembling the housing 10 and the cover body 20, the seal member 30 extends downward into the accommodating tank 11 and is hermetically and fixedly connected to the accommodating tank 11. In the third stage, when a user applies a downward cover pressing force to the cover body 20, the cover body 20 continues to move downward relative to the housing 10, to apply a pressure to the seal member 30, so that the seal member 30 undergoes the compressive elastic deformation. It should be noted that the relative displacement of the seal column 22 with respect to the exhaust hole section 31 is the relative displacement between the compression of the seal member 30 in the first direction Z and the downward movement of the housing 10 in the first direction Z.

[0130] Optionally, as shown in FIG. 9, in the second stage, a part of the end surface of the seal member 30 facing away from the cover portion 21 abuts against the end surface of the housing 10 corresponding to the opening 12. The peripheral surface of the seal member 30 exposed outside the accommodating tank 11 can abut against an enclosure plate 24 of the cover body 20, and the relative position of the seal member 30 abutting against the enclosure plate 24 changes with the compression of the seal member 30 and the movement of the cover body 20.

[0131] Optionally, the support member 40 is arranged on the side of the seal member 30 facing toward the cover portion 21. The support member 40 is fixedly connected to the seal member 30 and can move relative to the cover body 20 synchronously with the compression of the seal member 30.

[0132] Optionally, the seal member 30 can be made of an elastic material such as resin and silicone.

[0133] Referring to FIG. 4 and FIG. 7, in some implementations, the housing 10 is formed with a clamping structure 13. The cover body 20 is provided with a clamping portion 23. The clamping structure 13 is clamped with the clamping portion 23 to fixedly connect the cover body 20 to the housing 10.

[0134] In this way, the cover body 20 is fixedly connected to the housing 10 through the clamping between the clamping structure 13 and the clamping portion 23, thus ensuring the stable connection between the cover body 20 and the housing 10. Furthermore, the assembling operation is convenient and simple. In addition, the proper clamping between the clamping structure 13 and the clamping portion 23 can serve as sign information to confirm the completion of the connection between the cover body 20 and the housing 10. It is convenient for an operator to confirm the completion of the connection between the cover body 20 and the housing 10. Meanwhile, the seal member 30 completes the sealing on the accommodating tank.

[0135] Specifically, the clamping structure 13 can be an inverted buckle, and the clamping portion 23 can be clamped with the inverted buckle in the first direction Z. The clamping structure 13 can be arranged on the wall surface of the housing 10 facing away from the accommodating tank 11. The clamping portion 23 can be arranged on the enclosure plate 24 of the cover body 20. For example, the clamping portion 23 is located on the wall surface of the side of the enclosure plate 24 facing toward the accommodating tank 11. For another example, the clamping portion 23 can be arranged at the end portion of the enclosure plate 24 away from the cover portion 21.

[0136] As shown in FIG. 9, in the first stage, the enclosure plate 24 is completely separated from the cover body 20, and the clamping structure 13 is not in contact with the clamping portion 23. As shown in FIG. 9, in the second stage, the enclosure plate 24 partially surrounds the housing 10, and the clamping structure 13 resists against the clamping portion 23, but is not fully clamped. As shown in FIG. 4, in the third stage, the clamping structure 13 is fully clamped with the clamping portion 23, and the connection between the housing 10 and the cover body 20 is completed.

[0137] To shorten the assembling stroke, the clamping structure 13 can be arranged close to the opening 12 in the first direction Z, thus ensuring that the clamping portion 23 can be quickly clamped with the clamping structure 13 after the enclosure plate 24 approaches the opening 12.

[0138] Referring to FIG. 6, in some implementations, a guide slot 14 is formed in the wall surface of the housing 10 facing away from the accommodating tank 11. The guide slot 14 extends in the first direction Z. The guide slot 14 is configured to guide the housing 10 and the cover body 20 to generate the relative displacement in the first direction Z when the wall surface of the housing 10 facing away from the accommodating tank 11 resists against the cover body 20.

[0139] Referring to FIG. 4, in some implementations, the cover body 20 includes a cover portion 21 and an enclosure plate 24. The enclosure plate 24 is connected to the edge of the cover portion 21 and surrounds the end surface of the accommodating tank 11 formed with the opening 12. The seal member 30 is erected inside the enclosure plate 24 and covers the opening 12.

[0140] In this way, the enclosure plate 24 is connected to the edge of the cover portion 21 and surrounds the end surface of the accommodating tank 11 formed with the opening 12, and the seal member 30 is erected in the enclosure plate 24, so that the seal member 30 and the cover body 20 remain relatively fixed before the connection between the cover body 20 and the housing 10 is completed. Therefore, the seal member 30 can be assembled to the housing 10 together with the cover body 20, thus simplifying the mounting steps and facilitating the alignment between the seal member 30 and the opening 12.

[0141] Specifically, the enclosure plate 24 can extend downward from the edge of the cover portion 21 in the first direction Z. The enclosure plate 24 can surround the accommodating tank 11, a part of the housing 10 enclosing the accommodating tank 11, the seal member 30, and the support member 40. The enclosure plate 24 can achieve a guide effect in the process of assembling the cover body 20 and the housing 10.

[0142] Referring to FIG. 3 and FIG. 4, in some implementations, a heating assembly 50 is arranged inside the accommodating tank 11. The heating assembly 50 includes an exhaust pipeline 51 threaded in the seal member 30. The seal member 30 is in sealing fit with the outer wall surface of the exhaust pipeline 51.

[0143] In this way, the exhaust pipeline 51 of the heating assembly 50 is threaded in the seal member 30, and the seal member 30 is in sealing fit with the outer wall surface of the exhaust pipeline 51, thus lowering the risk of leakage of aerosols or the aerosol generating substrate from the exhaust pipeline 51.

[0144] Specifically, a liquid inlet 511 communicated to the accommodating tank 11 can be formed in the exhaust pipeline 51. During the operation of the aerosol generating device 100, the aerosol generating substrate can enter the exhaust pipeline 51 from the accommodating tank 11 through the liquid inlet 511. The heating assembly 50 generates heat during the operation of the aerosol generating device 100, to heat the aerosol generating substrate inside the exhaust pipeline 51 and generate aerosols. The liquid inlet 511 can be arranged at the end portion of the exhaust pipeline 51 away from the seal member 30. After the aerosols are generated, the aerosols flow along the exhaust pipeline 51 toward the upper part of the seal member 30.

[0145] It should be noted that before the connection between the housing 10 and the cover body 20 is completed, the excess air in the accommodating tank 11 is discharged through the exhaust hole section 31, which can lower the risk of the air being extruded to extrude the aerosol generating substrate, thereby avoiding the aerosol generating substrate from rushing into the liquid inlet 511 in advance.

[0146] Optionally, the end portion of the exhaust pipeline 51 corresponding to the opening 12 goes beyond, in the first direction Z, the plane in which the opening 12 is located. In some other embodiments, the end portion of the exhaust pipeline 51 corresponding to the opening 12 may be flush with or slightly lower than the opening 12.

[0147] Optionally, a battery 60 and a control assembly 70 are further arranged in the housing 10 and are both electrically connected to the heating assembly 50. The heating assembly 50 can convert electrical energy into thermal energy and transfer the thermal energy to the aerosol generating substrate.

[0148] Referring to FIG. 4 and FIG. 9, in some implementations, the cover body 20 is formed with an outlet channel 210, and the outlet channel 210 is communicated to the exhaust pipeline 51 to the external environment of the cover body 20.

[0149] In this way, the cover body 20 is formed with the outlet channel 210, and the outlet channel 210 is communicated to the exhaust pipeline 51 and the external environment of the cover body 20, thus enabling the cover body 20 to function as a suction nozzle, fully utilizing the structural space, and eliminating additional assembling procedures.

[0150] Specifically, the center of the cover portion 21 is hollow and forms the outlet channel 210. Aerosols generated in the exhaust pipeline 51 can enter the atmospheric environment or the respiratory system of a user along the exhaust pipeline 51 and the outlet channel 210, for inhalation.

[0151] Optionally, the support member 40 is formed with an exhaust slot 44 communicated to the outlet channel 210. The exhaust slot 44 is communicated to the gap 33. Furthermore, the gap 33 is communicated to the accommodating tank 11 in the second stage, so that the excess air in the accommodating tank 11 can be discharged out of the aerosol generating device 100 in the process of assembling the cover body 20 and the housing 10.

[0152] Further, the cover body 20 includes an enclosure plate 24. The enclosure plate 24 encloses a cavity 241. The support member 40 and the seal member 30 are erected inside the cavity 241. In the second stage, the cover portion can be spaced apart from the support member 40 in the first direction Z, and the outlet channel and the exhaust slot 44 are both communicated to the cavity 241.

[0153] Referring to FIG. 4 and FIG. 9, in some implementations, the seal member 30 is formed with a vent hole 36. A third convex rib 363 is formed on the hole wall of the vent hole 36. The exhaust pipeline 51 is threaded in the vent hole 36.

[0154] In this way, the third convex rib 363 is formed on the hole wall of the vent hole 36, and the exhaust pipeline 51 is threaded in the vent hole 36. The outer peripheral surface of the exhaust pipeline 51 can be in interference fit with the third convex rib 363 to ensure the good sealing effect on the exhaust pipeline 51, and the assembling is simple.

[0155] Optionally, the third convex rib 363 surrounds the exhaust pipeline 51 in the circumferential direction of the vent hole 36. The third convex rib 363 can be in a closed circular ring shape or in a discontinuous or continuous spiral form. One, two, three, or more third convex ribs 363 can be provided. Two or more third convex ribs 363 are arranged in the first direction Z.

[0156] Optionally, the end portion of the exhaust pipeline 51 threaded in the seal member 30 is accommodated in the vent hole 36. That is, the position of the port of the exhaust pipeline 51 in the first direction Z is lower than the end surface of the vent hole 36, and the exhaust pipeline 51 can be communicated to the outlet channel 210 through the vent hole 36.

[0157] Optionally, the support member 40 is stacked between the seal member 30 and the cover portion 21, and the inhalation air hole 45 is formed in the support member 40. The inhalation air hole 45 is communicated to the vent hole 36 and the outlet channel 210 in the first direction Z.

[0158] Referring to FIG. 13, this application provides a manufacturing method for an aerosol generating device 100. The method includes the following steps:

[0159] step S10: Provide a housing 10, where the housing 10 is formed with an accommodating tank 11 with an opening 12, and the accommodating tank 11 is configured to accommodate an aerosol generating substrate.

[0160] Step S20: Place an aerosol generating substrate into the accommodating tank 11 through the opening 12.

[0161] Step S30: Provide a covering assembly, where the covering assembly includes a cover body 20 and a seal member 30 arranged on the cover body 20; the cover body 20 includes a cover portion 21 and a seal column 22; the seal member 30 is formed with an exhaust hole section 31 and a seal hole section 32 that are communicated to each other in the first direction Z; and the seal column22 extends into the exhaust hole section 31 and forms a gap 33 with the hole wall of the exhaust hole section 31.

[0162] Step S40: Mount the covering assembly to the housing 10 in the first direction Z, and allow the seal member 30 to partially extend into the accommodating tank 11.

[0163] Step S50: Apply a force to the cover body 20 to cause the cover body 20 to move in the first direction Z relative to the housing 10 until the seal column 22 extends into the seal hole section 32 and is hermetically connected to the hole wall of the seal hole section 32.

[0164] In this way, before the force is applied to the cover body 20, the seal member 30 partially extends into the accommodating tank 11, and forms the gap 33 with the hole wall of the exhaust hole section 31. The gap 33 is communicated to the accommodating tank 11, so that the excess air in the accommodating tank 11 can be discharged through the gap 33. After the force is applied to the cover body 20, the cover body 20 moves in the first direction Z relative to the housing 10, so that the seal column 22 extends into the seal hole section 32 and is hermetically connected to the hole wall of the seal hole section 32. The operation is simple, thereby ensuring good sealing and lowering the risk of liquid extrusion. In addition, the aerosol generating substrate is placed into the accommodating tank 11 through the opening 12, which lowers the requirement for the liquid injection precision and is conductive to improving the liquid injection efficiency.

[0165] In step S20, the aerosol generating substrate is in a liquid state and can be injected into the accommodating tank 11 through a liquid injection machine or the like. After the liquid injection is completed, the liquid level of the aerosol generating substrate in the accommodating tank 11 is lower than a plane in which the opening 12 is located. Therefore, before the seal member 30 covers and seals the accommodating tank 11, an amount of air exists in the accommodating tank 11.

[0166] In conjunction with FIG. 7, in step S20, the housing 10 and the cover body 20, as well as the housing 10 and the seal member 30, are separated structures, corresponding to the first stage of the process of assembling the housing 10 and the cover body 20 as described earlier.

[0167] In conjunction with FIG. 9, in step S40, the portion of the seal member 30 extending into the accommodating tank 11 is a second seal portion 35. In this case, the peripheral side of the second seal portion 35 can be hermetically and fixedly connected to the tank wall of the accommodating tank 11, and the first seal portion 34 can abut against the end surface of the housing 10 on the circumference of the opening 12. From step S10 to step S40, the relative positions of the seal member 30 and the cover body 20 remain unchanged.

[0168] In conjunction with FIG. 4 and FIG. 9, step S50 corresponds to the second stage to the third stage as described earlier. In step S50, the seal member 30 can be kept relatively fixed with the housing 10, and the cover body 20 moves in the first direction Z relative to the housing 10, to drive the seal column 22 to move downward within the exhaust hole section 31. Before the seal column 22 extends downward into the seal hole section 32, the gap 33 is communicated to the accommodating tank 11 through the seal hole section 32, so that the air in the accommodating tank 11 can be discharged out of the accommodating tank 11, thus avoiding the problems of liquid extrusion and liquid leakage due to air extrusion after the seal column 22 completes the sealing on the seal hole section 32.

[0169] While the invention has been illustrated and described in detail in the drawings and foregoing description, such illustration and description are to be considered illustrative or exemplary and not restrictive. It will be understood that changes and modifications may be made by those of ordinary skill within the scope of the following claims. In particular, the present invention covers further embodiments with any combination of features from different embodiments described above and below. Additionally, statements made herein characterizing the invention refer to an embodiment of the invention and not necessarily all embodiments.

[0170] The terms used in the claims should be construed to have the broadest reasonable interpretation consistent with the foregoing description. For example, the use of the article “a” or “the” in introducing an element should not be interpreted as being exclusive of a plurality of elements. Likewise, the recitation of “or” should be interpreted as being inclusive, such that the recitation of “A or B” is not exclusive of “A and B,” unless it is clear from the context or the foregoing description that only one of A and B is intended. Further, the recitation of “at least one of A, B and C” should be interpreted as one or more of a group of elements consisting of A, B and C, and should not be interpreted as requiring at least one of each of the listed elements A, B and C, regardless of whether A, B and C are related as categories or otherwise. Moreover, the recitation of “A, B and / or C” or “at least one of A, B or C” should be interpreted as including any singular entity from the listed elements, e.g., A, any subset from the listed elements, e.g., A and B, or the entire list of elements A, B and C.

Examples

Embodiment Construction

[0019] In an embodiment, the present disclosure provides an aerosol generating device and is at least used to solve the problem of poor sealing caused by the liquid extrusion phenomenon.

[0020] In an embodiment, the present disclosure provides an aerosol generating device that includes a housing, a cover body, and a seal member. The housing is formed with an accommodating tank with an opening. The accommodating tank is configured to accommodate an aerosol generating substrate. The cover body is detachably connected to the housing. The seal member at least partially extends into the opening and is hermetically connected to the tank wall of the accommodating tank. The seal member is formed with a through hole configured to fit with the cover body to discharge air in the accommodating tank. The cover body is in sealing fit with the through hole.

[0021] In the aerosol generating device of this implementation of this application, the through hole fits with the cover body ...

CROSS-REFERENCE TO PRIOR APPLICATION

[0001] Priority is claimed to Chinese Patent Application No. 202510102272.0, filed on January 21,2025, the entire disclosure of which is hereby incorporated by reference here.FIELD

[0002] This application relates to the technical field of aerosol generation, and more particularly, to an aerosol generating device.BACKGROUND

[0003] An aerosol generating device is a type of small electronic device that generates aerosols by heating an aerosol generating substrate. In the related technology, the aerosol generating device is formed with an accommodating tank and a liquid injection hole. The accommodating tank is configured to accommodate a liquid aerosol generating substrate, and the liquid injection hole is configured to inject an aerosol generating substrate. Furthermore, the aerosol generating device is provided with a seal member for sealing the liquid injection hole and the accommodating tank. However, after the aerosol generating substrate is injected into the accommodating tank and a cover body needs to cover the accommodating tank, a liquid extrusion phenomenon easily occurs, leading to risks of liquid leakage, poor sealing, and the like.SUMMARY

[0004] In an embodiment, the present disclosure provides an aerosol generating device, comprising: a housing formed with an accommodating tank with an opening, the accommodating tank being configured to accommodate an aerosol generating substrate; a cover body detachably connected to the housing; and a seal member that at least partially extends into the opening and is hermetically connected to a tank wall of the accommodating tank, wherein the seal member is formed with a through hole configured to fit with the cover body so as to discharge air in the accommodating tank, and wherein the cover body is in sealing fit with the through hole.BRIEF DESCRIPTION OF THE DRAWINGS

[0005] Subject matter of the present disclosure will be described in even greater detail below based on the exemplary figures. All features described and / or illustrated herein can be used alone or combined in different combinations. The features and advantages of various embodiments will become apparent by reading the following detailed description with reference to the attached drawings, which illustrate the following:

[0006] FIG. 1 is a schematic diagram of a three-dimensional structure of an aerosol generating device according to an implementation of this application;

[0007] FIG. 2 is a schematic structural diagram of the aerosol generating device of FIG. 1 in a top view;

[0008] FIG. 3 is a schematic diagram of a cross-sectional structure of the aerosol generating device of FIG. 2 in the direction A-A;

[0009] FIG. 4 is a partially enlarged diagram of the aerosol generating device of FIG. 3;

[0010] FIG. 5 is a schematic diagram of a three-dimensional structure of a seal member of an aerosol generating device according to this application;

[0011] FIG. 6 is a schematic structural diagram of an aerosol generating device in a first stage of an assembling process according to an implementation of this application;

[0012] FIG. 7 is a partially enlarged cross-sectional diagram of the aerosol generating device of FIG. 6;

[0013] FIG. 8 is a schematic structural diagram of an aerosol generating device in a second stage of an assembling process according to an implementation of this application;

[0014] FIG. 9 is a partially enlarged cross-sectional diagram of the aerosol generating device of FIG. 8;

[0015] FIG. 10 is a schematic diagram of a three-dimensional structure of a cover body according to an implementation of this application;

[0016] FIG. 11 is a schematic structural diagram of an aerosol generating device from which a cover body is removed according to this application;

[0017] FIG. 12 is a schematic diagram of a three-dimensional structure of a support member according to an implementation of this application; and

[0018] FIG. 13 is a flowchart of a manufacturing method for an aerosol generating device according to an implementation of this application.DETAILED DESCRIPTION

[0019] In an embodiment, the present disclosure provides an aerosol generating device and is at least used to solve the problem of poor sealing caused by the liquid extrusion phenomenon.

[0020] In an embodiment, the present disclosure provides an aerosol generating device that includes a housing, a cover body, and a seal member. The housing is formed with an accommodating tank with an opening. The accommodating tank is configured to accommodate an aerosol generating substrate. The cover body is detachably connected to the housing. The seal member at least partially extends into the opening and is hermetically connected to the tank wall of the accommodating tank. The seal member is formed with a through hole configured to fit with the cover body to discharge air in the accommodating tank. The cover body is in sealing fit with the through hole.

[0021] In the aerosol generating device of this implementation of this application, the through hole fits with the cover body to discharge the air in the accommodating tank, and is hermetically connected to the cover body, to avoid extrusion on the liquid level of an aerosol generating substrate due to extrusion on the air by the cover body and the seal member during covering between the cover body and the housing, thus lowering the risks of liquid leakage and poor sealing. Meanwhile, through the sealing fit between the seal member and the tank wall, and the sealing fit between the hole wall of the through hole and the cover body, the dimensional chain is simple, thus improving the sealing reliability under an extreme condition. In addition, the aerosol generating substrate can be added into the accommodating tank through the opening of the accommodating tank. The space is sufficient and is convenient for a liquid injection operation. The efficiency can be improved, and liquid extrusion and liquid leakage can be reduced.

[0022] In some implementations, the cover body includes a cover portion and a seal column; the cover portion covers the opening of the accommodating tank; the seal column protrudes from the cover portion in a first direction; and the first direction is a direction in which the cover portion points to the accommodating tank.

[0023] The through hole includes an exhaust hole section and a seal hole section that are communicated to each other in the first direction; the seal hole section is closer to the accommodating tank than the exhaust hole section; the seal column is threaded in the exhaust hole section and the seal hole section; the seal hole section is closer to the bottom wall of the accommodating tank than the exhaust hole section; and the seal column forms a gap with the hole wall of the exhaust hole section and is hermetically connected to the hole wall of the seal hole section.

[0024] In this way, in a process of assembling the cover body and the housing, first, the tank wall of the accommodating tank is in sealing fit with the seal member. The seal column is spaced apart from the seal hole section in the first direction and forms the gap with the hole wall of the exhaust hole section. In this case, the gap is communicated to the accommodating tank and the atmosphere, and the air in the accommodating tank can be discharged through the gap. Later, in a case that the cover body is subjected to the external force, the cover body and the seal member generate relative displacement in the first direction. The seal column extends into the seal hole section until the hermetical connection with the hole wall of the seal hole section is completed. Meanwhile, the communication between the gap and the accommodating tank is cut off. In this design, the excess air in the accommodating tank can be discharged before the seal member completely seals the accommodating tank, to avoid extrusion caused by the air on a liquid aerosol generating substrate as much as possible, thus avoiding liquid leakage and ensuring the good sealing effect.

[0025] In some implementations, the seal member includes a first seal portion and a second seal portion; the first seal portion abuts against the end surface of the housing corresponding to the opening; and the second seal portion extends into the accommodating tank and is hermetically connected to the tank wall of the accommodating tank.

[0026] Before the cover body is connected to the housing, the seal column is spaced apart from the seal hole section by a distance in the first direction; the gap is communicated to the accommodating tank and the external environment of the accommodating tank; and the cover body is configured to move relative to the housing in the first direction after being subjected to an external force, to connect the cover body to the housing and allow the seal column to extend into the seal hole section and be hermetically connected to the hole wall of the seal hole section.

[0027] In this way, before the cover body is connected to the housing, the seal column is spaced apart from the seal hole section by the distance in the first direction. When the second seal portion extends into the accommodating tank, the accommodating tank can be communicated to the external environment through the gap. When the cover body is subjected to the external force (a cover pressing force), the cover body moves relative to the housing and the seal member in the first direction. The cover body and the housing complete the connection, and the seal column and the seal hole section complete the hermetical connection, thereby discharging the excess air in the accommodating tank in the process of assembling the cover body, the seal member, and the housing, then completing the sealing on the accommodating tank, and lowering the risks of liquid extrusion and liquid leakage.

[0028] In some implementations, the aerosol generating device includes a support member; the support member is arranged on the side of the seal member facing away from the accommodating tank, and is formed with a limiting hole communicated to the exhaust hole section; the seal column sequentially passes through the limiting hole, the exhaust hole section, and the seal hole section; and the aperture of the limiting hole is less than the aperture of the communication position between the exhaust hole section and the limiting hole.

[0029] In this way, the limiting hole communicated to the exhaust hole section is formed in the support member, and the aperture of the limiting hole is less than the aperture of the communication position between the exhaust hole section and the limiting hole. The seal column sequentially passes through the limiting hole and the exhaust hole section, so that before the seal column extends into the exhaust hole section, the support member can support the seal column to maintain the distance away from the seal hole section in the first direction, thereby ensuring the exhaust effect.

[0030] In some implementations, the seal column is hermetically connected to the hole wall of the limiting hole.

[0031] In this way, through the hermetical connection between the seal column and the hole wall of the limiting hole, the sealing effect on the positions, through which the seal column passes, on the limiting hole and the exhaust hole section is enhanced, which further improves the sealing reliability.

[0032] In some implementations, the seal column includes a first seal section and a second seal section sequentially in the first direction; the first seal section is connected to the cover portion, and the radial size of the first seal section is greater than the radial size of the second seal section; the first seal section extends into the limiting hole; and the second seal section forms the gap with the hole wall of the exhaust hole section and is in sealing fit with the seal hole section.

[0033] In this way, the radial size of the first seal section is greater than the radial size of the second seal section, the aperture of the limiting hole is less than the aperture of the communication position between the exhaust hole section and the limiting hole, and the first seal section is far away from the accommodating tank relative to the second seal section. In the process of assembling the cover body and the housing, the first seal section is first maintained outside the limiting hole, and the second seal section extends into the limiting hole and the exhaust hole section and is spaced apart from the seal hole section. The seal member can partially extend into the accommodating tank, and the gap is communicated to the accommodating tank and is communicated to the external environment through the limiting hole, thereby helping to discharge the air inside the accommodating tank. Later, when the cover body is subjected to the cover pressing force, the seal column moves in the first direction toward the seal hole section. The first seal section extends into the limiting hole, and the second seal section extends into the seal hole section, so that the limiting hole plays a role in limiting to an extent.

[0034] In some implementations, a guide surface is formed at the connection position between the first seal section and the second seal section, and the guide surface extends in a converging manner from the first seal section to the second seal section.

[0035] In this way, the guide surface is formed at the connection position between the first seal section and the second seal section. The guide surface extends in the converging manner from the first seal section to the second seal section, so that when the seal column moves toward the seal hole section in the first direction, the guide surface can guide and help the first seal section to extend from the outside of the limiting hole into the limiting hole.

[0036] In some implementations, the support member is formed with an exhaust slot located at the edge of the limiting hole, and the exhaust slot is communicated to the gap.

[0037] In this way, the exhaust slot is formed in the edge of the limiting hole and is communicated to the gap, so that before the first seal section extends into the exhaust hole section, the gap is communicated to the external environment through the exhaust slot. This helps to discharge the air in the accommodating tank along the gap and the exhaust slot.

[0038] In some implementations, the aperture of the exhaust hole section has a decrease trend in the first direction, and the aperture of the seal hole section is less than or equal to the minimum aperture of the exhaust hole section.

[0039] In this way, the aperture of the exhaust hole section has the decrease trend in the first direction. The end of the exhaust hole section away from the seal hole section has the maximum aperture, and the end communicated to the seal hole section has the minimum aperture. The aperture of the seal hole section is less than or equal to the aperture of the communication position between the exhaust hole section and the seal hole section. Therefore, the hole wall of the exhaust hole section and the outer peripheral surface of the seal column are at least spaced apart in the radial direction to form the gap, and effective sealing can be achieved when the seal column extends from the exhaust hole section into the seal hole section in the first direction.

[0040] In some implementations, the seal member is an elastic component; and the seal member is configured to undergo elastic deformation when the seal member partially extends into the accommodating tank and the cover body is subjected to an external force, for the seal member and the seal column to generate relative displacement in the first direction.

[0041] In this way, the seal member undergoes the compressive elastic deformation in a case that the seal member partially extends into the accommodating tank and the cover body is subjected to the external force. This promotes the seal column to move within the exhaust hole section in the first direction and complete the hermetical connection with the hole wall of the seal hole section, so that the assembling process is relatively simple, and the seal member can achieve a buffering effect between the cover body and the accommodating tank.

[0042] In some implementations, a plurality of seal columns and a plurality of through holes are provided, and the seal columns are in one-to-one corresponding fit with the through holes.

[0043] In this way, through the one-to-one corresponding fit between the plurality of groups of seal columns and through holes, the structural stability is improved and the exhaust effect is further optimized, which is conducive to fully discharging the air in the accommodating tank and lowering the risk of liquid extrusion.

[0044] In some implementations, a first convex rib is formed on the outer peripheral surface of the seal member extending into the accommodating tank; and / or, a second convex rib is formed on the hole wall of the through hole.

[0045] In this way, through the interference fit between the first convex rib and the tank wall of the accommodating tank, and / or through the partial interference fit between the second convex rib and the cover body, it is convenient to complete the hermetical connection during covering. In addition, a lateral sealing manner simplifies the dimensional chain, which is conducive to improving the sealing reliability under extreme conditions such as drop, high temperature, and low temperature.

[0046] In some implementations, the housing is formed with a clamping structure; the cover body is provided with a clamping portion; and the clamping structure is clamped with the clamping portion to fixedly connect the cover body to the housing.

[0047] In this way, the cover body is fixedly connected to the housing through the clamping between the clamping structure and the clamping portion, thus ensuring the stable connection between the cover body and the housing. Furthermore, the assembling operation is convenient and simple. In addition, the proper clamping between the clamping structure and the clamping portion can serve as sign information to confirm the completion of the connection between the cover body and the housing. It is convenient for an operator to confirm the completion of the connection between the cover body and the housing. Meanwhile, the seal member completes the sealing on the accommodating tank.

[0048] In some implementations, the cover body includes a cover portion and an enclosure plate; the enclosure plate is connected to the edge of the cover portion and surrounds the end surface of the accommodating tank formed with the opening; and the seal member is erected inside the enclosure plate and covers the opening.

[0049] In this way, the enclosure plate is connected to the edge of the cover portion and surrounds the end surface of the accommodating tank formed with the opening, and the seal member is erected in the enclosure plate, so that the seal member and the cover body remain relatively fixed before the connection between the cover body and the housing is completed. Therefore, the seal member can be assembled to the housing together with the cover body, thus simplifying the mounting steps and facilitating the alignment between the seal member and the opening.

[0050] In some implementations, a heating assembly is arranged inside the accommodating tank; the heating assembly includes an exhaust pipeline threaded in the seal member; and the seal member is in sealing fit with the outer wall surface of the exhaust pipeline.

[0051] In this way, the exhaust pipeline of the heating assembly is threaded in the seal member, and the seal member is in sealing fit with the outer wall surface of the exhaust pipeline, thus lowering the risk of leakage of aerosols or the aerosol generating substrate from the exhaust pipeline.

[0052] In some implementations, the cover body is formed with an outlet channel, and the outlet channel is communicated to the exhaust pipeline to the external environment of the cover body.

[0053] In this way, the cover body is formed with the outlet channel, and the outlet channel is communicated to the exhaust pipeline and the external environment of the cover body, thus enabling the cover body to function as a suction nozzle, fully utilizing the structural space, and eliminating additional assembling procedures.

[0054] In some implementations, the seal member is formed with a vent hole; a third convex rib is formed on the hole wall of the vent hole; and the exhaust pipeline is threaded in the vent hole.

[0055] In this way, the third convex rib is formed on the hole wall of the vent hole, and the exhaust pipeline is threaded in the vent hole. The outer peripheral surface of the exhaust pipeline can be in interference fit with the third convex rib to ensure the good sealing effect on the exhaust pipeline, and the assembling is simple.

[0056] The additional aspects and advantages of this application will be partially provided in the following descriptions, some of which will become apparent from the following descriptions, or learned through the practice of this application.Descriptions of reference numerals of main elements:

[0057] 100: aerosol generating device; 10: housing; 11: accommodating tank; 12: opening; 13: clamping structure; 14: guide slot; 20: cover body; 21: cover portion; 210: outlet channel; 22: seal column; 221: first seal section; 222: second seal section; 223: guide surface; 23: clamping portion; 24: enclosure plate; 241: cavity; 25: positioning column; Z: first direction; 30: seal member; 301: through hole; 31: exhaust hole section; 32; seal hole section; 322: second convex rib; 33: gap; 34: first seal portion; 35: second seal portion; 351; first convex rib; 36: vent hole; 363: third convex rib; 40: support member; 41: limiting hole; 42: structural rib; 43: limiting rib; 44: exhaust slot; 45: inhalation air hole; 46: positioning hole; 50: heating assembly; 51: exhaust pipeline; 511: liquid inlet; 60: battery; and 70: control assembly.

[0058] The implementations of this application are described in detail below, and examples of the implementations are shown in accompanying drawings, where the same or similar elements or the elements having same or similar functions are denoted by the same or similar reference numerals throughout the description. The implementations described below with reference to the accompanying drawings are exemplary and used only for explaining this application, and should not be construed as a limitation on this application.

[0059] In the descriptions of this application, it should be understood that orientations or positional relationships indicated by "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "anticlockwise", and the like are orientations or positional relationships as shown in the drawings, and are only for the purpose of facilitating and simplifying the descriptions of this application instead of indicating or implying that devices or elements indicated need to have particular orientations, and be constructed and operated in the particular orientations, whereby these terms are not construed as limiting this application. In addition, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, features defined as "first" and "second" explicitly or implicitly include one or more of the features. In the descriptions of this application, "a plurality of" means two or more, unless otherwise definitely and specifically limited.

[0060] In the description of this application, it should be noted that, unless otherwise expressly specified and defined, the terms "mount", "connection", "connect" should be understood in a broad sense, for example, a fixed connection, a detachable connection, integrated connection, a mechanical connection, an electrical connection, communication with one another, direct connection, indirect connection through an intermediate medium, an internal communication between two elements, or an interaction between two elements. Those of ordinary skill in the art can understand the specific meanings of the above terms in this application according to specific situations.

[0061] In this application, unless otherwise explicitly stipulated and restricted, that a first feature is "on" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are in indirect contact through another feature. In addition, that the first feature is "on", "above", or "over" the second feature includes that the first feature is directly or diagonally above the second feature, or merely indicates that a level of the first feature is greater than that of the second feature. That the first feature is "below", "beneath", and "under" of the second feature indicates that the first feature is directly or diagonally below the second feature, or merely indicates that a level of the first feature is less than that of the second feature.

[0062] The following disclosure provides many different implementations or examples to implement different structures of this application. To simplify the disclosure of this application, components and settings of specific examples are described below. Certainly, they are merely examples and are not intended to limit this application. Furthermore, this application may repeat reference numerals and / or reference letters in different examples. Such repetition is for purposes of simplicity and clarity and does not indicate a relationship between the various implementations and / or settings discussed. In addition, this application provides examples of various specific processes and materials, but a person of ordinary skill in the art can recognize the application of other processes and / or the usage of other materials.

[0063] Referring to FIG. 1 and FIG. 2, the aerosol generating device 100 is a structure that can generate aerosols by applying resistance heating, electromagnetic heating, microwave heating, laser irradiation, infrared light irradiation, ultrasonic oscillation, mechanical oscillation, or the like to an aerosol generating substrate. The aerosol generating substrate is a plant leaf product capable of generating aerosols after being treated and heated. The form of the aerosol generating substrate may be an all-solid state, a semi-solid state, or a liquid state.

[0064] The aerosol generating substrate is heated and atomized to generate aerosols. The aerosols may be visible or invisible and may include vapor (such as gaseous fine particulate matters, typically liquid or solid at the room temperature) and liquid droplets of air and condensed vapor. A user can inhale the aerosols into the oral cavity, the nasal cavity, or the lungs through the mouth or the nose. The aerosols inhaled into the respiratory system of the user can be used for various purposes such as food, medicine, health care, and entertainment.

[0065] In the related technology, during the assembling process of the aerosol generating device, it is necessary inject a liquid aerosol generating substrate into the accommodating tank in the assembling process and ensures the sealing performance of the accommodating tank. The aerosol generating substrate is directly injected from the opening of the accommodating tank. The space is large and is convenient for operation. In this design, a silicone pad needs to be arranged between a suction nozzle and the end surface of an accommodating tank formed with an opening, thus ensuring the sealing of the end surface. Therefore, there is a high requirement for the flatness of the silicone pad and the end surface, and the dimensional chain is also long. In addition, the silicone pad is compressed by 0.3-0.6 mm during assembling, thus causing the suction nozzle and a housing forming the accommodating tank to remain under a stress. In the extreme situations such as drop, high temperature, and low temperature, the poor sealing easily occurs.

[0066] To simplify the dimensional chain of a seal member and ensure the sealing reliability under the extreme condition, a liquid injection hole can be provided, and a seal pad and a seal column can be used to provide lateral sealing for the accommodating tank and the liquid injection hole, respectively. However, the liquid injection hole has the small aperture, so that a high requirement for the liquid injection precision is put forward. Furthermore, it is easy to extrude the liquid level of the aerosol generating substrate, leading to the problem of liquid leakage.

[0067] In view of this, an implementation of this application provides an aerosol generating device 100 with a laterally sealed accommodating tank 11, which can retain the liquid injection manner via an opening 12. Meanwhile, the air in the accommodating tank 11 can be discharged before a seal member 30 implements sealing, to lower the risk of liquid extrusion and liquid leakage.

[0068] Referring to FIG. 3 and FIG. 4, the aerosol generating device 100 includes a housing 10, a cover body 20, and a seal member 30. The housing 10 is formed with an accommodating tank 11 with an opening 12. The accommodating tank 11 is configured to accommodate an aerosol generating substrate. The cover body 20 is detachably connected to the housing 10. The seal member 30 at least partially extends into the opening 12 and is hermetically connected to the tank wall of the accommodating tank 11. The seal member 30 is formed with a through hole 301 configured to fit with the cover body 20 to discharge air in the accommodating tank 11. The cover body 20 is in sealing fit with the through hole 301.

[0069] In the aerosol generating device 100 of this implementation of this application, the through hole 301 fits with the cover body 20 to discharge the air in the accommodating tank 11, and is then hermetically connected to the cover body 20, to avoid extrusion on the liquid level of an aerosol generating substrate due to extrusion on the air by the cover body 20 and the seal member 30 during covering between the cover body 20 and the housing 10, thus lowering the risks of liquid leakage and poor sealing. Meanwhile, through the sealing fit between the seal member 30 and the tank wall, and the sealing fit between the hole wall of the through hole 301 and the cover body 20, the dimensional chain is simple, thus improving the sealing reliability under an extreme condition. In addition, the aerosol generating substrate can be added into the accommodating tank 11 through the opening 12 of the accommodating tank 11. The space is sufficient and is convenient for a liquid injection operation. The efficiency can be improved, and liquid extrusion and liquid leakage can be reduced.

[0070] In some implementations, the cover body 20 includes a cover portion 21 and a seal column 22. The cover portion 21 covers the opening 12 of the accommodating tank 11. The seal column 22 protrudes from the cover portion 21 in a first direction Z. The first direction Z is a direction in which the cover portion 21 points to the accommodating tank 11.

[0071] The through hole 301 includes an exhaust hole section 31 and a seal hole section 32 that are communicated to each other in the first direction Z. The seal hole section 32 is closer to the bottom wall of the accommodating tank 11 than the exhaust hole section 31. The seal column 22 is threaded in the exhaust hole section 31 and the seal hole section 32. The seal column 22 forms a gap 33 with the hole wall of the exhaust hole section 31 and is hermetically connected to the hole wall of the seal hole section 32.

[0072] In the aerosol generating device 100 of this implementation of this application, the exhaust hole section 31 and the seal hole section 32 that are communicated to each other in the first direction Z are formed in the seal member 30, the seal hole section 32 is closer to the bottom wall of the accommodating tank 11 than the exhaust hole section 31, the seal column 22 of the cover body 20 extends into the exhaust hole section 31 and the seal hole section 32, and the seal column 22 forms the gap 33 with the hole wall of the exhaust hole section 31 and is hermetically connected to the hole wall of the seal hole section 32. Thus, in a process of assembling the cover body 20 and the housing 10, first, the tank wall of the accommodating tank 11 is in sealing fit with the seal member 30. The seal column 22 is spaced apart from the seal hole section 32 in the first direction Z and forms the gap 33 with the hole wall of the exhaust hole section 31. In this case, the gap 33 is communicated to the accommodating tank 11 and the atmosphere, and the air in the accommodating tank 11 can be discharged through the gap 33. Later, in a case that the cover body 20 is subjected to the external force, the cover body 20 and the seal member 30 generate relative displacement in the first direction Z. The seal column 22 extends into the seal hole section 32 until the hermetical connection with the hole wall of the seal hole section 32 is completed. Meanwhile, the communication between the gap 33 and the accommodating tank 11 is cut off. In this design, the excess air in the accommodating tank 11 can be discharged before the seal member 30 completely seals the accommodating tank 11, to avoid extrusion caused by the air on a liquid aerosol generating substrate as much as possible, thus avoiding liquid leakage and ensuring the good sealing effect.

[0073] Meanwhile, through the sealing fit between the seal member 30 and the tank wall, and the sealing fit between the seal column 22 and the hole wall of the seal hole section 32, it ensures that the dimensional chain is simple, thus improving the sealing reliability under an extreme condition. In addition, the aerosol generating substrate can be added into the accommodating tank 11 through the opening 12 of the accommodating tank 11. The space is sufficient and is convenient for a liquid injection operation. The efficiency can be improved, and liquid extrusion and liquid leakage can be reduced.

[0074] For ease of explanation, in this application, the first direction Z is defined as an up-down direction. A direction in which the cover body 20 points to the housing 10 is from top to bottom, and vice versa, a direction in which the housing 10 points to the cover body 20 is from bottom to top. The cover body 20 can be assembled with the housing 10 from top to bottom.

[0075] This implementation of this application is applicable to a type of aerosol generating device 100 pre-configured with an aerosol generating substrate in the manufacturing process, and is particularly applicable to device types that use liquid or semi-solid aerosol generating substrates. Before the cover body 20 and the housing 10 are assembled, the aerosol generating substrate is injected into the accommodating tank 11 from the opening 12. After the injection of the aerosol generating substrate is completed, the cover body 20 and the seal member 30 are assembled onto the housing 10 and seal the accommodating tank 11.

[0076] Specifically, the outer contour shape of the cross section of the housing 10 matches the outer contour shape of the cross section of the cover portion 21, so that the cover portion 21 can cover the end surface of the housing 10 corresponding to the opening 12. The cross-sectional shape of the accommodating tank 11 may be the same or different from the outer contour shape of the cross section of the housing 10. The outer contour shape of the cross section of the portion of the seal member 30 extending into the accommodating tank 11 is the same as and matched in size with the cross-sectional shape of the accommodating tank 11. The outer contour shape of the cross section of the housing 10 includes, but is not limited to, a circle, an ellipse, a triangle, a quadrangle, a polygon, a star shape, a runway shape, or another irregular shape. The cross-sectional shape of the accommodating tank 11 can be a circle, an ellipse, a triangle, a quadrangle, a polygon, a star shape, a runway shape, or another irregular shape. The cross section refers to a section taken in the transverse direction perpendicular to the first direction Z.

[0077] In the process of assembling the cover body 20 and the housing 10, the seal member 30 partially passes through the opening 12 in the first direction Z and extends into the accommodating tank 11. The outer peripheral surface of the portion of the seal member 30 extending into the accommodating tank 11 can be in interference fit with the accommodating tank 11 to ensure the sealing effect. For the convenience of the extension of the seal member 30, the contour lines of the cross sections of both the seal member 30 and the accommodating tank 11 can be curved lines. For example, the cross section of the accommodating tank 11 and the opening 12 are both elliptical. The outer contour shape of the cross section of the housing 10 and the outer contour shape of the cross section of the cover portion 21 are also elliptical.

[0078] The seal member 30 is arranged inside the cover body 20, specifically located within a range in which the cover portion 21 is opposite to the opening 12. The exhaust hole section 31 and the seal hole section 32 can penetrate through the seal member 30 together in the first direction Z, and the exhaust hole section 31 is located above the seal hole section 32. The cross-sectional shapes of both the exhaust hole section 31 and the seal hole section 32 are matched with the cross-sectional shape of the seal column 22. For example, the seal column 22 is a cylinder, and the cross-sectional shapes of both the exhaust hole section 31 and the seal column 22 are circular. The diameter of the exhaust hole section 31 may be greater than the diameter of the seal column 22, and the hole wall of the exhaust hole section 31 is spaced apart from and forms a gap 33 with the outer peripheral surface of the seal column 22. The seal column 22 can be in interference fit with the seal hole section 32, and the minimum diameter of the seal column 22 is slightly less than the diameter of the seal column 22.

[0079] Referring to FIG. 4, FIG. 5, and FIG. 9, in some implementations, the seal member 30 includes a first seal portion 34 and a second seal portion 35. The first seal portion 34 abuts against the end surface of the housing 10 corresponding to the opening 12, and the second seal portion 35 extends into the accommodating tank 11 and is hermetically connected to the tank wall of the accommodating tank 11.

[0080] Before the cover body 20 is connected to the housing 10, the seal column 22 is spaced apart from the seal hole section 32 by a distance in the first direction Z. The gap 33 is communicated to the accommodating tank 11 and the external environment of the accommodating tank 11. The cover body 20 is configured to move relative to the housing 10 in the first direction Z after being subjected to an external force, to connect the cover body 20 to the housing 10 and allow the seal column 22 to extend into the seal hole section 32 and be hermetically connected to the hole wall of the seal hole section 32.

[0081] In this way, before the cover body 20 is connected to the housing 10, the seal column 22 is spaced apart from the seal hole section 32 by the distance in the first direction Z. When the second seal portion 35 extends into the accommodating tank 11, the accommodating tank 11 can be communicated to the external environment through the gap 33. When the cover body 20 is subjected to the external force (a cover pressing force), the cover body 20 moves relative to the housing 10 and the seal member 30 in the first direction Z. The cover body 20 and the housing 10 complete the connection, and the seal column 22 and the seal hole section 32 complete the hermetical connection, thereby discharging the excess air in the accommodating tank 11 in the process of assembling the cover body 20, the seal member 30, and the housing 10, then completing the sealing on the accommodating tank 11, and lowering the risks of liquid extrusion and liquid leakage.

[0082] Specifically, the seal member 30 can be in a disk shape as a whole, and the first seal portion 34 and the second seal portion 35 are two portions of the seal member 30 that are stacked up and down and connected. The second seal portion 35 extends into the accommodating tank 11 from the opening 12 and is hermetically connected to the tank wall of the accommodating tank 11. The cross-sectional shape of the second seal portion 35 is the same as the cross-sectional shape of the accommodating tank 11 and can be in interference fit with the tank wall of the accommodating tank 11 in the radial direction. For example, the cross-sectional shape of the accommodating tank 11 and the opening 12 are both elliptical, and the cross-sectional shape of the second seal portion 35 is also elliptical.

[0083] Optionally, the housing 10 encloses the accommodating tank 11, and the diameter of the outer contour of the housing 10 enclosing the opening 12 is greater than the diameter of the opening 12. The edge of the first seal portion 34 in the transverse direction can go beyond the second seal portion 35 and abut against the end surface of the housing 10 enclosing the opening 12.

[0084] Optionally, a cavity 241 is formed inside the cover body 20. The cavity 241 is communicated to the external environment of the aerosol generating device 100. The seal member 30 is arranged in the cavity 241. Before the cover body 20 is connected to the housing 10, the gap 33 can be communicated to the cavity 241. In the process of assembling the housing 10 and the cover body 20, the cover body 20 and the seal member 30 gradually move down in the first direction Z until the connection between the cover body 20 and the housing 10 is completed. In this process, the relative positions of the seal column 22 and the seal member 30 are in the following three stages in sequence:

[0085] In a first stage, as shown in FIG. 6 and FIG. 7, the cover body 20 and the seal member 30 are separated from the housing 10, and the seal column 22 extends into the exhaust hole section 31 and is spaced apart from the seal hole section 32 by a distance in the first direction Z. In the first stage, the gap 33 between the seal column 22 and the hole wall of the exhaust hole section 31 is upward communicated to the cavity 241 inside the cover body 20, and can be communicated to the external environment of the aerosol generating device 100 through the cavity 241.

[0086] In a second stage, as shown in FIG. 8 and FIG. 9, the connection between the cover body 20 and the housing 10 is not completed. The first seal portion 34 abuts against the end surface of the housing 10 corresponding to the opening 12. The second seal portion 35 extends into the accommodating tank 11. The second seal portion 35 can be in interference fit with the tank wall of the accommodating tank 11 to implement the hermetical connection. In the second stage, the gap 33 is upward communicated to the external environment and is downward communicated to the seal hole section 32. The lower end of the seal hole section 32 is communicated to the accommodating tank 11, so that the air in the accommodating tank 11 can be discharged along the seal hole section 32→ the gap 33→ the cavity 241 inside the cover body 20 to the external environment of the aerosol generating device 100, usually to the atmospheric environment. From the first stage to the second stage, the relative positions of the seal column 22 and the seal member 30 can remain unchanged, and the gap 33 remains being communicated to the accommodating tank 11 and the external environment, to ensure that the air in the accommodating tank 11 is fully discharged.

[0087] In a third stage, as shown in FIG. 3 and FIG. 4, an operator applies a cover pressing force to the cover body 20, or can apply a pushing force to the housing 10, to cause the cover body 20 to move downward relative to the housing 10 and complete the connection with the housing 10. In the third stage, the position of the seal member 30 can be fixed relative to the housing 10, and the seal column 22 moves downward relative to the seal member 30, extends into the seal hole section 32, and is hermetically connected to the hole wall of the seal hole section 32. In this case, the gap 33 is isolated from the accommodating tank 11 by the seal column 22 and the seal hole section 32, and the seal member 30 also completes the sealing on the accommodating tank 11.

[0088] Referring to FIG. 4, FIG. 7, and FIG. 9, in some implementations, the aerosol generating device 100 includes a support member 40. The support member 40 is arranged on the side of the seal member 30 facing away from the accommodating tank 11, and is formed with a limiting hole 41 communicated to the exhaust hole section 31. The seal column 22 sequentially passes through the limiting hole 41, the exhaust hole section 31, and the seal hole section 32. The aperture of the limiting hole 41 is less than the aperture of the communication position between the exhaust hole section 31 and the limiting hole 41.

[0089] In this way, the limiting hole 41 communicated to the exhaust hole section 31 is formed in the support member 40, and the aperture of the limiting hole 41 is less than the aperture of the communication position between the exhaust hole section 31 and the limiting hole 41. The seal column 22 sequentially passes through the limiting hole 41 and the exhaust hole section 31, so that before the seal column 22 extends into the exhaust hole section 31, the support member 40 can support the seal column 22 to maintain the distance from the seal column and the seal hole section 32 in the first direction Z, thereby ensuring the exhaust effect.

[0090] Specifically, the support member 40 is fixedly connected to the seal member 30. The support member 40 and the seal member 30 can be separate parts and are fixedly connected to each other by an adhesive, a fixing member, in a clamping connection manner, or the like. The support member 40 and the seal member 30 may alternatively be integrally formed as a whole. The support member 40 and the seal member 30 can be stacked up and down and are jointly arranged inside the cover body 20. Further, the support member 40 is connected to the end surface of the side of the first seal portion 34 away from the second seal portion 35.

[0091] In the first stage and the second stage, the seal column 22 passes through the limiting hole 41 and extends into the exhaust hole section 31, and the outer peripheral surface of the seal column 22 also forms an exhaust gap 33 with the limiting hole 41. Since the aperture of the limiting hole 41 is less than the aperture of the communication position between the exhaust hole section 31 and the limiting hole 41, the exhaust gap 33 is communicated to the gap 33 to ensure the exhaust effect. In addition, since the aperture of the limiting hole 41 is less than the aperture of the communication position between the exhaust hole section 31 and the limiting hole 41, the support member 40 can play a role in supporting the cover body 20 through the seal column 22, and the cover body 20 is erected above the seal member 30 and maintains a distance from the cover portion 21 to the seal member 30, thereby ensuring the communication between the gap 33 and the accommodating tank 11, as well as the external environment.

[0092] Optionally, the surface of the side of the support member 40 facing away from the accommodating tank 11 abuts against the inner wall surface of the cover body 20 in the third stage, that is, when the connection between the cover body 20 and the housing 10 is completed.

[0093] Optionally, the support member 40 includes a plurality of structural ribs 42 and limiting ribs 43. The structural ribs 42 are configured to be connected to the limiting ribs 43. A hollow is formed between the plurality of structural ribs and the plurality of limiting ribs 43 to provide space for other components inside the aerosol generating device 100. The limiting ribs 43 may be annular, and the center of one or more annular limiting ribs 43 may form the limiting hole 41.

[0094] In some implementations, the seal column 22 is hermetically connected to the hole wall of the limiting hole 41.

[0095] In this way, through the hermetical connection between the seal column 22 and the hole wall of the limiting hole 41, the sealing effect on the positions, through which the seal column 22 passes, on the limiting hole 41 and the exhaust hole section 31 is enhanced, which further improves the sealing reliability.

[0096] Specifically, in the first stage and the second stage, the seal column 22 and the hole wall of the limiting hole 41 form the exhaust gap 33 and are not fixedly connected to each other. In the third stage, when the connection between the cover body 20 and the housing 10 is completed, the seal column 22 moves downward relative to the seal member 30 and the support member 40. In the second stage, the portion of the seal column 22 located outside the limiting hole 41 extends into the limiting hole 41 and is hermetically connected to the limiting hole 41. In the third stage and during the use of the aerosol generating device 100, the side of the gap 33 close to the accommodating tank 11 in the first direction Z is closed due to the hermetical connection between the seal column 22 and the hole wall of the seal hole section 32, and the side of the gap 33 away from the accommodating tank 11 in the first direction Z is closed due to the hermetical connection between the seal column 22 and the hole wall of the limiting hole 41.

[0097] Referring to FIG. 4, FIG. 7, and FIG. 9, in some implementations, the seal column 22 sequentially includes a first seal section 221 and a second seal section 222 in the first direction Z. The first seal section 221 is connected to the cover portion 21, and the radial size of the first seal section 221 is greater than the radial size of the second seal section 222. The first seal section 221 extends into the limiting hole 41, and the second seal section 222 forms the gap 33 with the hole wall of the exhaust hole section 31 and is in sealing fit with the seal hole section 32.

[0098] In this way, the radial size of the first seal section 221 is greater than the radial size of the second seal section 222, the aperture of the limiting hole 41 is less than the aperture of the communication position between the exhaust hole section 31 and the limiting hole 41, and the first seal section 221 is far away from the accommodating tank relative to the second seal section 221. In the process of assembling the cover body 20 and the housing 10, the first seal section 221 is first maintained outside the limiting hole 41, and the second seal section 222 extends into the limiting hole 41 and the exhaust hole section 31 and is spaced apart from the seal hole section 32. The seal member 30 can partially extend into the accommodating tank 11, and the gap 33 is communicated to the accommodating tank 11 and is communicated to the external environment through the limiting hole 41, thereby helping to discharge the air inside the accommodating tank 11. Later, when the cover body 20 is subjected to the cover pressing force, the seal column 22 moves in the first direction Z toward the seal hole section 32. The first seal section 221 extends into the limiting hole 41, and the second seal section 222 extends into the seal hole section 32, so that the limiting hole 41 plays a role in limiting to an extent.

[0099] Specifically, the cross-sectional shape of the seal column 22 includes, but is not limited to, a circle, an ellipse, a quadrangle, a polygon, and the like. The cross-sectional shapes of both the first seal section 221 and the second seal section 222 may be the same or different. The radial sizes of the first seal section and the second seal section 222 refer to the sizes in a direction perpendicular to the axial direction of the seal column 22, that is, perpendicular to the first direction Z. For example, the cross-sectional shape of the first seal section 221 is circular, the cross-sectional shape of the second seal section 222 is also circular, and the diameter of the second seal section is less than the diameter of the first seal section 221. The first seal section 221 and the second seal section 222 can be coaxial. Correspondingly, the limiting hole 41 is a circular hole, and the limiting hole 41, the exhaust hole section 31, and the seal hole section 32 are all coaxial with the seal column 22.

[0100] As shown in FIG. 7 and FIG. 9, in the first stage and the second stage, the diameter of the first seal section 221 is slightly greater than the diameter of the limiting hole 41. The first seal section 221 is exposed outside the limiting hole 41, while the second seal section 222 is threaded in the limiting hole 41. The lower end of the second seal section 222 extends into the exhaust hole section 31. The second seal section 222 forms the gap 33 with the hole wall of the exhaust hole section 31, and the gap 33 is communicated to the seal hole section 32 and the atmospheric environment. In the second stage, the gap 33 is communicated to the accommodating tank 11 through the seal hole section 32.

[0101] As shown in FIG. 4, in the third stage, the seal column 22 moves downward relative to the seal member 30, and the first seal section 221 downward enters the limiting hole 41. The limiting hole 41 can deform under the pressing of the first seal section 221. Due to the pressing between the first seal section 221 and the hole wall of the limiting hole 41, the first seal section 221 can be in sealing fit with the limiting hole 41.

[0102] In the third stage, the second seal section 222 moves downward relative to the seal member 30 and at least partially exits the limiting hole 41, and the lower end of the second seal section 222 extends into the seal hole section 32 through the exhaust hole section 31. In the third stage, the second seal section 222 is partially located in the exhaust hole section 31 and forms a gap 33 with the hole wall of the exhaust hole section 31. The lower end of the second seal section 222 is hermetically connected to the hole wall of the seal hole section 32.

[0103] Referring to FIG. 7, FIG. 9, and FIG. 10, in some implementations, a guide surface 223 is formed at the connection position between the first seal section 221 and the second seal section 222, and the guide surface 223 extends in a converging manner from the first seal section 221 to the second seal section 222.

[0104] In this way, the guide surface 223 is formed at the connection position between the first seal section 221 and the second seal section 222. The guide surface 223 extends in the converging manner from the first seal section 221 to the second seal section 222, so that when the seal column 22 moves toward the seal hole section 32 in the first direction Z, the guide surface 223 can guide and help the first seal section 221 to extend from the outside of the limiting hole 41 into the limiting hole 41.

[0105] Specifically, the guide surface 223 can be surrounded between the first seal section 221 and the second seal section 222 in the circumferential direction of the seal column 22, and extends in the converging manner from the first seal section 221 to the second seal section 222. The guide surface 223 can be a straight slope or a curved surface, and the guide surface 223 or the tangential direction of the guide surface 223 forms an angle of less than 90° with respect to the first direction Z.

[0106] Referring to FIG. 9, FIG. 11, and FIG. 12, in some implementations, the support member 40 is formed with an exhaust slot 44 located at the edge of the limiting hole 41, and the exhaust slot 44 is communicated to the gap 33.

[0107] In this way, the exhaust slot 44 is formed in the edge of the limiting hole 41 and is communicated to the gap 33, so that before the first seal section 221 extends into the exhaust hole section 31, the gap 33 is communicated to the external environment through the exhaust slot 44. This helps to discharge the air in the accommodating tank 11 along the gap 33 and the exhaust slot 44.

[0108] Specifically, the exhaust slot 44 can be formed by upward partially hollowing the support member 40 from the end surface of the communication position between the limiting hole 41 and the exhaust hole section 31. The cavity 241 communicated to the atmosphere is formed in the cover body 20. The support member 40 is arranged in the cavity 241, and the exhaust slot 44 is communicated to the cavity 241, so that the gap 33 is communicated to the atmosphere through the exhaust slot 44 and the cavity 241 in the second stage.

[0109] Optionally, the support member 40 includes an annular limiting rib 43. The limiting hole 41 penetrating through the support member 40 is formed in the center of the limiting rib 43. The notch of the exhaust slot 44 is formed in the end surface of the limiting rib 43 facing toward the exhaust hole section 31, and the exhaust slot 44 can penetrate through the inner and outer surfaces of the limiting rib 43 in the radial direction of the limiting hole 41.

[0110] Optionally, a plurality of exhaust slots 44 are provided. The plurality of exhaust slots 44 are arranged in a spacing manner in the circumferential direction of the limiting hole 41. In this way, the exhaust efficiency can be improved.

[0111] Referring to FIG. 4 and FIG. 9, in some implementations, the aperture of the exhaust hole section 31 has a decrease trend in the first direction Z, and the aperture of the seal hole section 32 is less than or equal to the minimum aperture of the exhaust hole section 31.

[0112] In this way, the aperture of the exhaust hole section 31 has the decrease trend in the first direction Z. The end of the exhaust hole section 31 away from the seal hole section 32 has the maximum aperture, and the end communicated to the seal hole section 32 has the minimum aperture. The aperture of the seal hole section 32 is less than or equal to the aperture of the communication position between the exhaust hole section 31 and the seal hole section 32. Therefore, the hole wall of the exhaust hole section 31 and the outer peripheral surface of the seal column 22 are at least spaced apart in the radial direction to form the gap 33, and effective sealing can be achieved when the seal column 22 extends from the exhaust hole section 31 into the seal hole section 32 in the first direction Z.

[0113] Specifically, the aperture of the exhaust hole section 31 can gradually decrease from top to bottom in the first direction Z. The exhaust hole section 31 may be in an inverted conical shape. In some embodiments, the aperture of the limiting hole 41 is less than the maximum aperture of the exhaust hole section 31.

[0114] Optionally, the seal hole section 32 is a straight hole. The hole wall of the seal hole section 32 is connected to the hole wall of the exhaust hole section 31, and the aperture of the exhaust hole section 31 at the connection position is minimum. The diameter of the seal hole section 32 can be slightly less the aperture of the connection position between the exhaust hole section 31 and the seal hole section 32.

[0115] In some embodiments, the diameter of the first seal section 221 and the diameter of the limiting hole 41 match and are both less than the maximum diameter of the exhaust hole section 31. The diameter of the second seal section 222 is less than or equal to the minimum diameter of the exhaust hole section 31, and the diameter of the second seal section 222 is slightly greater than or equal to the diameter of the seal hole section 32.

[0116] In some implementations, a plurality of seal columns 22 and a plurality of through holes 301 are provided, and the seal columns 22 are in one-to-one corresponding fit with the through holes 301.

[0117] In this way, through the one-to-one corresponding fit between the plurality of groups of seal columns 22 and through holes 301, the structural stability is improved and the exhaust effect is further optimized, which is conducive to fully discharging the air in the accommodating tank 11 and lowering the risk of liquid extrusion.

[0118] Specifically, the plurality of seal columns 22 are distributed in a spacing manner on the cover portion 21, and the distribution positions of the plurality of seal columns 22 can adapt to the shape and structure of the cover portion 21 and other structures inside the cover body 20. The spacing distance between two adjacent seal columns 22 can be equal or not equal. For example, the outer contour shape of the cross section of the cover portion 21 is elliptical. Three seal columns 22 are provided. Two seal columns 22 are opposite to and spaced apart from the other seal column 22 in the long axis direction of the cross section of the cover portion 21. The two seal columns 22 located on the same side of the cover portion 21 in the long axis direction are arranged in parallel in the short axis direction.

[0119] The plurality of through holes 301 are distributed in a spacing manner on the seal member 30 in the radial direction of the through holes 301. Each through hole 301 includes a group of exhaust hole section 31 and seal hole section 32. Each group of exhaust hole section 31 and seal hole section 32 is directly opposite to a corresponding seal column 22 in the first direction Z.

[0120] In some embodiments, a plurality of limiting holes 41 are formed in the support member 40. Each limiting hole 41 is correspondingly located directly above a group of exhaust hole section 31 and seal hole section 32. In this way, after each seal column 22 is aligned with a corresponding limiting hole 41, the seal column 22 is pushed into the exhaust hole section 31 and the seal hole section 32. This is conducive to positioning the relative positions of the cover body 20 and the seal member 30.

[0121] Referring to FIG. 10 and FIG. 11, in some other embodiments, the cover body 20 further includes a positioning column 25. The positioning column 25 extends from the cover portion 21 toward the housing 10 in the first direction Z. The support member 40 is formed with a positioning hole 46 that directly faces the positioning column 25 in the first direction Z. The positioning column 25 is at least partially inserted into the positioning hole 46. The end portion of the positioning column 25 away from the cover portion 21 is accommodated in the positioning hole 46 and can be spaced apart or abut against the seal member 30. In this way, the positioning hole 46 can work together with the limiting hole 41 to achieve a positioning effect.

[0122] Referring to FIG. 4 and FIG. 9, in some implementations, a first convex rib 351 is formed on the outer peripheral surface of the seal member 30 extending into the accommodating tank 11; and / or, a second convex rib 322 is formed on the hole wall of the through hole 301.

[0123] In this way, through the interference fit between the first convex rib 351 and the tank wall of the accommodating tank 11, and / or through the partial interference fit between the second convex rib 322 and the cover body 20, the hermetical connection can be conveniently completed during covering. In addition, a lateral sealing manner simplifies the dimensional chain, which is conducive to improving the sealing reliability under extreme conditions such as drop, high temperature, and low temperature.

[0124] Specifically, the first convex rib 351 can extend in the circumferential direction of the accommodating tank 11. For example, the first convex rib 351 continuously extends in the circumferential direction of the accommodating tank 11 and surrounds the second seal portion 35 by a circle. One, two, three, or more first convex ribs 351 can be provided. Two or more first convex ribs 351 are arranged in the axial direction of the seal member 30.

[0125] Each second convex rib 322 is formed on the seal hole section 32, and is in interference fit with the end portion of the seal column 22 away from the cover portion 21.

[0126] The position of the second convex rib 322 on the hole wall of the seal hole section 32 in the first direction Z matches a magnitude of the relative displacement generated between the seal member 30 and the cover body 20 when the cover body 20 is connected to the housing 10. For example, the second convex rib 322 is formed at the connection position between the exhaust hole section 31 and the seal hole section 32. In the second stage, the end portion of the seal column 22 away from the cover portion 21 extends into the exhaust hole section 31, and is spaced apart from the second convex rib 322 in the first direction Z by a distance. In the third stage, the cover body 20 or the housing 10 is subjected to an external force, and the cover body 20 and the seal member 30 generate relative displacement, so that the end portion of the seal column 22 away from the cover portion 21 extends into the seal hole section 32 and is hermetically connected to the first convex rib 351.

[0127] In some implementations, the seal member 30 is an elastic component. The seal member 30 is configured to undergo elastic deformation when the seal member 30 partially extends into the accommodating tank 11 and the cover body 20 is subjected to an external force, for the seal member 30 and the seal column 22 to generate relative displacement in the first direction Z.

[0128] In this way, the seal member 30 undergoes the compressive elastic deformation in a case that the seal member 30 partially extends into the accommodating tank 11 and the cover body 20 is subjected to the external force. This promotes the seal column 22 to move within the exhaust hole section 31 in the first direction Z and complete the hermetical connection with the hole wall of the seal hole section 32, so that the assembling process is relatively simple, and the seal member 30 can achieve a buffering effect between the cover body 20 and the accommodating tank 11.

[0129] Specifically, in the second stage of the process of assembling the housing 10 and the cover body 20, the seal member 30 extends downward into the accommodating tank 11 and is hermetically and fixedly connected to the accommodating tank 11. In the third stage, when a user applies a downward cover pressing force to the cover body 20, the cover body 20 continues to move downward relative to the housing 10, to apply a pressure to the seal member 30, so that the seal member 30 undergoes the compressive elastic deformation. It should be noted that the relative displacement of the seal column 22 with respect to the exhaust hole section 31 is the relative displacement between the compression of the seal member 30 in the first direction Z and the downward movement of the housing 10 in the first direction Z.

[0130] Optionally, as shown in FIG. 9, in the second stage, a part of the end surface of the seal member 30 facing away from the cover portion 21 abuts against the end surface of the housing 10 corresponding to the opening 12. The peripheral surface of the seal member 30 exposed outside the accommodating tank 11 can abut against an enclosure plate 24 of the cover body 20, and the relative position of the seal member 30 abutting against the enclosure plate 24 changes with the compression of the seal member 30 and the movement of the cover body 20.

[0131] Optionally, the support member 40 is arranged on the side of the seal member 30 facing toward the cover portion 21. The support member 40 is fixedly connected to the seal member 30 and can move relative to the cover body 20 synchronously with the compression of the seal member 30.

[0132] Optionally, the seal member 30 can be made of an elastic material such as resin and silicone.

[0133] Referring to FIG. 4 and FIG. 7, in some implementations, the housing 10 is formed with a clamping structure 13. The cover body 20 is provided with a clamping portion 23. The clamping structure 13 is clamped with the clamping portion 23 to fixedly connect the cover body 20 to the housing 10.

[0134] In this way, the cover body 20 is fixedly connected to the housing 10 through the clamping between the clamping structure 13 and the clamping portion 23, thus ensuring the stable connection between the cover body 20 and the housing 10. Furthermore, the assembling operation is convenient and simple. In addition, the proper clamping between the clamping structure 13 and the clamping portion 23 can serve as sign information to confirm the completion of the connection between the cover body 20 and the housing 10. It is convenient for an operator to confirm the completion of the connection between the cover body 20 and the housing 10. Meanwhile, the seal member 30 completes the sealing on the accommodating tank.

[0135] Specifically, the clamping structure 13 can be an inverted buckle, and the clamping portion 23 can be clamped with the inverted buckle in the first direction Z. The clamping structure 13 can be arranged on the wall surface of the housing 10 facing away from the accommodating tank 11. The clamping portion 23 can be arranged on the enclosure plate 24 of the cover body 20. For example, the clamping portion 23 is located on the wall surface of the side of the enclosure plate 24 facing toward the accommodating tank 11. For another example, the clamping portion 23 can be arranged at the end portion of the enclosure plate 24 away from the cover portion 21.

[0136] As shown in FIG. 9, in the first stage, the enclosure plate 24 is completely separated from the cover body 20, and the clamping structure 13 is not in contact with the clamping portion 23. As shown in FIG. 9, in the second stage, the enclosure plate 24 partially surrounds the housing 10, and the clamping structure 13 resists against the clamping portion 23, but is not fully clamped. As shown in FIG. 4, in the third stage, the clamping structure 13 is fully clamped with the clamping portion 23, and the connection between the housing 10 and the cover body 20 is completed.

[0137] To shorten the assembling stroke, the clamping structure 13 can be arranged close to the opening 12 in the first direction Z, thus ensuring that the clamping portion 23 can be quickly clamped with the clamping structure 13 after the enclosure plate 24 approaches the opening 12.

[0138] Referring to FIG. 6, in some implementations, a guide slot 14 is formed in the wall surface of the housing 10 facing away from the accommodating tank 11. The guide slot 14 extends in the first direction Z. The guide slot 14 is configured to guide the housing 10 and the cover body 20 to generate the relative displacement in the first direction Z when the wall surface of the housing 10 facing away from the accommodating tank 11 resists against the cover body 20.

[0139] Referring to FIG. 4, in some implementations, the cover body 20 includes a cover portion 21 and an enclosure plate 24. The enclosure plate 24 is connected to the edge of the cover portion 21 and surrounds the end surface of the accommodating tank 11 formed with the opening 12. The seal member 30 is erected inside the enclosure plate 24 and covers the opening 12.

[0140] In this way, the enclosure plate 24 is connected to the edge of the cover portion 21 and surrounds the end surface of the accommodating tank 11 formed with the opening 12, and the seal member 30 is erected in the enclosure plate 24, so that the seal member 30 and the cover body 20 remain relatively fixed before the connection between the cover body 20 and the housing 10 is completed. Therefore, the seal member 30 can be assembled to the housing 10 together with the cover body 20, thus simplifying the mounting steps and facilitating the alignment between the seal member 30 and the opening 12.

[0141] Specifically, the enclosure plate 24 can extend downward from the edge of the cover portion 21 in the first direction Z. The enclosure plate 24 can surround the accommodating tank 11, a part of the housing 10 enclosing the accommodating tank 11, the seal member 30, and the support member 40. The enclosure plate 24 can achieve a guide effect in the process of assembling the cover body 20 and the housing 10.

[0142] Referring to FIG. 3 and FIG. 4, in some implementations, a heating assembly 50 is arranged inside the accommodating tank 11. The heating assembly 50 includes an exhaust pipeline 51 threaded in the seal member 30. The seal member 30 is in sealing fit with the outer wall surface of the exhaust pipeline 51.

[0143] In this way, the exhaust pipeline 51 of the heating assembly 50 is threaded in the seal member 30, and the seal member 30 is in sealing fit with the outer wall surface of the exhaust pipeline 51, thus lowering the risk of leakage of aerosols or the aerosol generating substrate from the exhaust pipeline 51.

[0144] Specifically, a liquid inlet 511 communicated to the accommodating tank 11 can be formed in the exhaust pipeline 51. During the operation of the aerosol generating device 100, the aerosol generating substrate can enter the exhaust pipeline 51 from the accommodating tank 11 through the liquid inlet 511. The heating assembly 50 generates heat during the operation of the aerosol generating device 100, to heat the aerosol generating substrate inside the exhaust pipeline 51 and generate aerosols. The liquid inlet 511 can be arranged at the end portion of the exhaust pipeline 51 away from the seal member 30. After the aerosols are generated, the aerosols flow along the exhaust pipeline 51 toward the upper part of the seal member 30.

[0145] It should be noted that before the connection between the housing 10 and the cover body 20 is completed, the excess air in the accommodating tank 11 is discharged through the exhaust hole section 31, which can lower the risk of the air being extruded to extrude the aerosol generating substrate, thereby avoiding the aerosol generating substrate from rushing into the liquid inlet 511 in advance.

[0146] Optionally, the end portion of the exhaust pipeline 51 corresponding to the opening 12 goes beyond, in the first direction Z, the plane in which the opening 12 is located. In some other embodiments, the end portion of the exhaust pipeline 51 corresponding to the opening 12 may be flush with or slightly lower than the opening 12.

[0147] Optionally, a battery 60 and a control assembly 70 are further arranged in the housing 10 and are both electrically connected to the heating assembly 50. The heating assembly 50 can convert electrical energy into thermal energy and transfer the thermal energy to the aerosol generating substrate.

[0148] Referring to FIG. 4 and FIG. 9, in some implementations, the cover body 20 is formed with an outlet channel 210, and the outlet channel 210 is communicated to the exhaust pipeline 51 to the external environment of the cover body 20.

[0149] In this way, the cover body 20 is formed with the outlet channel 210, and the outlet channel 210 is communicated to the exhaust pipeline 51 and the external environment of the cover body 20, thus enabling the cover body 20 to function as a suction nozzle, fully utilizing the structural space, and eliminating additional assembling procedures.

[0150] Specifically, the center of the cover portion 21 is hollow and forms the outlet channel 210. Aerosols generated in the exhaust pipeline 51 can enter the atmospheric environment or the respiratory system of a user along the exhaust pipeline 51 and the outlet channel 210, for inhalation.

[0151] Optionally, the support member 40 is formed with an exhaust slot 44 communicated to the outlet channel 210. The exhaust slot 44 is communicated to the gap 33. Furthermore, the gap 33 is communicated to the accommodating tank 11 in the second stage, so that the excess air in the accommodating tank 11 can be discharged out of the aerosol generating device 100 in the process of assembling the cover body 20 and the housing 10.

[0152] Further, the cover body 20 includes an enclosure plate 24. The enclosure plate 24 encloses a cavity 241. The support member 40 and the seal member 30 are erected inside the cavity 241. In the second stage, the cover portion can be spaced apart from the support member 40 in the first direction Z, and the outlet channel and the exhaust slot 44 are both communicated to the cavity 241.

[0153] Referring to FIG. 4 and FIG. 9, in some implementations, the seal member 30 is formed with a vent hole 36. A third convex rib 363 is formed on the hole wall of the vent hole 36. The exhaust pipeline 51 is threaded in the vent hole 36.

[0154] In this way, the third convex rib 363 is formed on the hole wall of the vent hole 36, and the exhaust pipeline 51 is threaded in the vent hole 36. The outer peripheral surface of the exhaust pipeline 51 can be in interference fit with the third convex rib 363 to ensure the good sealing effect on the exhaust pipeline 51, and the assembling is simple.

[0155] Optionally, the third convex rib 363 surrounds the exhaust pipeline 51 in the circumferential direction of the vent hole 36. The third convex rib 363 can be in a closed circular ring shape or in a discontinuous or continuous spiral form. One, two, three, or more third convex ribs 363 can be provided. Two or more third convex ribs 363 are arranged in the first direction Z.

[0156] Optionally, the end portion of the exhaust pipeline 51 threaded in the seal member 30 is accommodated in the vent hole 36. That is, the position of the port of the exhaust pipeline 51 in the first direction Z is lower than the end surface of the vent hole 36, and the exhaust pipeline 51 can be communicated to the outlet channel 210 through the vent hole 36.

[0157] Optionally, the support member 40 is stacked between the seal member 30 and the cover portion 21, and the inhalation air hole 45 is formed in the support member 40. The inhalation air hole 45 is communicated to the vent hole 36 and the outlet channel 210 in the first direction Z.

[0158] Referring to FIG. 13, this application provides a manufacturing method for an aerosol generating device 100. The method includes the following steps:

[0159] step S10: Provide a housing 10, where the housing 10 is formed with an accommodating tank 11 with an opening 12, and the accommodating tank 11 is configured to accommodate an aerosol generating substrate.

[0160] Step S20: Place an aerosol generating substrate into the accommodating tank 11 through the opening 12.

[0161] Step S30: Provide a covering assembly, where the covering assembly includes a cover body 20 and a seal member 30 arranged on the cover body 20; the cover body 20 includes a cover portion 21 and a seal column 22; the seal member 30 is formed with an exhaust hole section 31 and a seal hole section 32 that are communicated to each other in the first direction Z; and the seal column22 extends into the exhaust hole section 31 and forms a gap 33 with the hole wall of the exhaust hole section 31.

[0162] Step S40: Mount the covering assembly to the housing 10 in the first direction Z, and allow the seal member 30 to partially extend into the accommodating tank 11.

[0163] Step S50: Apply a force to the cover body 20 to cause the cover body 20 to move in the first direction Z relative to the housing 10 until the seal column 22 extends into the seal hole section 32 and is hermetically connected to the hole wall of the seal hole section 32.

[0164] In this way, before the force is applied to the cover body 20, the seal member 30 partially extends into the accommodating tank 11, and forms the gap 33 with the hole wall of the exhaust hole section 31. The gap 33 is communicated to the accommodating tank 11, so that the excess air in the accommodating tank 11 can be discharged through the gap 33. After the force is applied to the cover body 20, the cover body 20 moves in the first direction Z relative to the housing 10, so that the seal column 22 extends into the seal hole section 32 and is hermetically connected to the hole wall of the seal hole section 32. The operation is simple, thereby ensuring good sealing and lowering the risk of liquid extrusion. In addition, the aerosol generating substrate is placed into the accommodating tank 11 through the opening 12, which lowers the requirement for the liquid injection precision and is conductive to improving the liquid injection efficiency.

[0165] In step S20, the aerosol generating substrate is in a liquid state and can be injected into the accommodating tank 11 through a liquid injection machine or the like. After the liquid injection is completed, the liquid level of the aerosol generating substrate in the accommodating tank 11 is lower than a plane in which the opening 12 is located. Therefore, before the seal member 30 covers and seals the accommodating tank 11, an amount of air exists in the accommodating tank 11.

[0166] In conjunction with FIG. 7, in step S20, the housing 10 and the cover body 20, as well as the housing 10 and the seal member 30, are separated structures, corresponding to the first stage of the process of assembling the housing 10 and the cover body 20 as described earlier.

[0167] In conjunction with FIG. 9, in step S40, the portion of the seal member 30 extending into the accommodating tank 11 is a second seal portion 35. In this case, the peripheral side of the second seal portion 35 can be hermetically and fixedly connected to the tank wall of the accommodating tank 11, and the first seal portion 34 can abut against the end surface of the housing 10 on the circumference of the opening 12. From step S10 to step S40, the relative positions of the seal member 30 and the cover body 20 remain unchanged.

[0168] In conjunction with FIG. 4 and FIG. 9, step S50 corresponds to the second stage to the third stage as described earlier. In step S50, the seal member 30 can be kept relatively fixed with the housing 10, and the cover body 20 moves in the first direction Z relative to the housing 10, to drive the seal column 22 to move downward within the exhaust hole section 31. Before the seal column 22 extends downward into the seal hole section 32, the gap 33 is communicated to the accommodating tank 11 through the seal hole section 32, so that the air in the accommodating tank 11 can be discharged out of the accommodating tank 11, thus avoiding the problems of liquid extrusion and liquid leakage due to air extrusion after the seal column 22 completes the sealing on the seal hole section 32.

[0169] While the invention has been illustrated and described in detail in the drawings and foregoing description, such illustration and description are to be considered illustrative or exemplary and not restrictive. It will be understood that changes and modifications may be made by those of ordinary skill within the scope of the following claims. In particular, the present invention covers further embodiments with any combination of features from different embodiments described above and below. Additionally, statements made herein characterizing the invention refer to an embodiment of the invention and not necessarily all embodiments.

[0170] The terms used in the claims should be construed to have the broadest reasonable interpretation consistent with the foregoing description. For example, the use of the article “a” or “the” in introducing an element should not be interpreted as being exclusive of a plurality of elements. Likewise, the recitation of “or” should be interpreted as being inclusive, such that the recitation of “A or B” is not exclusive of “A and B,” unless it is clear from the context or the foregoing description that only one of A and B is intended. Further, the recitation of “at least one of A, B and C” should be interpreted as one or more of a group of elements consisting of A, B and C, and should not be interpreted as requiring at least one of each of the listed elements A, B and C, regardless of whether A, B and C are related as categories or otherwise. Moreover, the recitation of “A, B and / or C” or “at least one of A, B or C” should be interpreted as including any singular entity from the listed elements, e.g., A, any subset from the listed elements, e.g., A and B, or the entire list of elements A, B and C.

Examples

Embodiment Construction

[0019] In an embodiment, the present disclosure provides an aerosol generating device and is at least used to solve the problem of poor sealing caused by the liquid extrusion phenomenon.

[0020] In an embodiment, the present disclosure provides an aerosol generating device that includes a housing, a cover body, and a seal member. The housing is formed with an accommodating tank with an opening. The accommodating tank is configured to accommodate an aerosol generating substrate. The cover body is detachably connected to the housing. The seal member at least partially extends into the opening and is hermetically connected to the tank wall of the accommodating tank. The seal member is formed with a through hole configured to fit with the cover body to discharge air in the accommodating tank. The cover body is in sealing fit with the through hole.

[0021] In the aerosol generating device of this implementation of this application, the through hole fits with the cover body ...

Claims

1. An aerosol generating device, comprising:a housing formed with an accommodating tank with an opening, the accommodating tank being configured to accommodate an aerosol generating substrate;a cover body detachably connected to the housing; anda seal member that at least partially extends into the opening and is hermetically connected to a tank wall of the accommodating tank, wherein the seal member is formed with a through hole configured to fit with the cover body so as to discharge air in the accommodating tank, and wherein the cover body is in sealing fit with the through hole.

2. The aerosol generating device of claim 1, wherein the cover body comprises a cover portion and a seal column, the cover portion covering the opening of the accommodating tank, the seal column protruding from the cover portion in a first direction, the first direction being a direction in which the cover portion points to the accommodating tank,wherein the through hole comprises an exhaust hole section and a seal hole section that are communicated to each other in the first direction,wherein the seal column is threaded in the exhaust hole section and the seal hole section,wherein the seal hole section is closer to a bottom wall of the accommodating tank than the exhaust hole section, and wherein the seal column forms a gap with a hole wall of the exhaust hole section and is hermetically connected to a hole wall of the seal hole section.

3. The aerosol generating device of claim 2, wherein the seal member comprises a first seal portion and a second seal portion, the first seal portion abutting against an end surface of the housing corresponding to the opening, the second seal portion extending into the accommodating tank and being hermetically connected to the tank wall of the accommodating tank,wherein, before the cover body is connected to the housing, the seal column is spaced apart from the seal hole section by a distance in the first direction, wherein the gap is communicated to the accommodating tank and an external environment of the accommodating tank, and wherein the cover body is configured to move relative to the housing in the first direction after being subjected to an external force so as to connect the cover body to the housing and allow the seal column to extend into the seal hole section and be hermetically connected to the hole wall of the seal hole section.

4. The aerosol generating device of claim 2, further comprising: a support member arranged on a side of the seal member facing away from the accommodating tank, the support member being formed with a limiting hole communicated to the exhaust hole section, wherein the seal column sequentially passes through the limiting hole, the exhaust hole section, and the seal hole section, and wherein an aperture of the limiting hole is less than an aperture of the communication position between the exhaust hole section and the limiting hole.

5. The aerosol generating device of claim 4, wherein the seal column is hermetically connected to a hole wall of the limiting hole.

6. The aerosol generating device of claim 4, wherein the seal column comprises a first seal section and a second seal section sequentially in the first direction, wherein the first seal section is connected to the cover portion, and a radial size of the first seal section is greater than a radial size of the second seal section, wherein the first seal section extends into the limiting hole, and wherein the second seal section forms the gap with the hole wall of the exhaust hole section and is in sealing fit with the seal hole section.

7. The aerosol generating device of claim 6, wherein a guide surface is formed at the connection position between the first seal section and the second seal section, and wherein the guide surface extends in a converging manner from the first seal section to the second seal section.

8. The aerosol generating device of claim 4, wherein the support member is formed with an exhaust slot located at an edge of the limiting hole, and wherein the exhaust slot is communicated to the gap.

9. The aerosol generating device of claim 2, wherein an aperture of the exhaust hole section has a decrease trend in the first direction, andwherein an aperture of the seal hole section is less than or equal to a minimum aperture of the exhaust hole section.

10. The aerosol generating device of claim 2, wherein the seal member comprises an elastic component, wherein the seal member is configured to undergo elastic deformation when the seal member partially extends into the accommodating tank and the cover body is subjected to an external force, for the seal member and the seal column to generate relative displacement in the first direction.

11. The aerosol generating device of claim 1, wherein a plurality of seal columns and a plurality of through holes are provided, and wherein the seal columns are in one-to-one corresponding fit with the through holes.

12. The aerosol generating device of claim 1, wherein a first convex rib is formed on an outer peripheral surface of the seal member extending into the accommodating tank, and / orwherein a second convex rib is formed on a hole wall of the through hole.

13. The aerosol generating device of claim 1, wherein the housing is formed with a clamping structure,wherein the cover body is provided with a clamping portion, and wherein the clamping structure is clamped with the clamping portion so as to fixedly connect the cover body to the housing.

14. The aerosol generating device of claim 1, wherein the cover body comprises a cover portion and an enclosure plate,wherein the enclosure plate is connected to an edge of the cover portion and surrounds the end surface of the accommodating tank formed with the opening, and wherein the seal member is erected inside the enclosure plate and covers the opening.

15. The aerosol generating device of claim 1, wherein a heating assembly is arranged inside the accommodating tank,wherein the heating assembly comprises an exhaust pipeline threaded in the seal member, and wherein the seal member is in sealing fit with an outer wall surface of the exhaust pipeline.

16. The aerosol generating device of claim 15, wherein the cover body is formed with an outlet channel, and wherein the outlet channel is communicated to the exhaust pipeline and an external environment of the cover body.

17. The aerosol generating device of claim 15, wherein the seal member is formed with a vent hole, wherein a third convex rib is formed on a hole wall of the vent hole, and wherein the exhaust pipeline is threaded in the vent hole.

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