Aerosol-generating device

Abstract

The utility model discloses an aerosol generating device. The aerosol generating device comprises a shell, a cover body and a sealing piece, an open containing bin is formed in the shell, and the containing bin is used for containing an aerosol generating substrate; the cover body is detachably connected with the shell; the sealing piece at least partially extends into the opening and is in sealed connection with the bin wall of the containing bin, a through hole is formed in the sealing piece and used for being matched with the cover body to discharge air in the containing bin, and the cover body is in sealed fit with the through hole. The air in the containing bin is exhausted through cooperation of the through hole and the cover body, and then the through hole is connected with the cover body in a sealed mode, so that the situation that when the cover body covers the shell, the cover body and the sealing piece extrude the air, and consequently the liquid level of the aerosol generating matrix is extruded is avoided, and the risks of liquid leakage and poor sealing are reduced. Meanwhile, the sealing element is in sealing fit with the bin wall, and the hole wall of the through hole is in sealing fit with the cover body, so that the size chain is simpler, and the sealing reliability under extreme conditions is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of aerosol generation, and more particularly, to an aerosol generating device. BACKGROUND

[0002] An aerosol generating device is a small electronic device that generates an aerosol by heating an aerosol generating substrate. In the related art, the aerosol generating device is formed with a receiving chamber for receiving the aerosol generating substrate in a liquid state and a liquid injection hole for injecting the aerosol generating substrate, and is provided with a sealing member to seal the liquid injection hole and the receiving chamber. However, after the aerosol generating substrate is injected into the receiving chamber, the cover body needs to be closed with the receiving chamber, and liquid squeezing phenomenon can easily occur, causing liquid leakage and poor sealing. SUMMARY

[0003] The present application provides an aerosol generating device, and at least solves the problem of poor sealing caused by liquid squeezing.

[0004] The aerosol generating device of the present application includes a housing, a cover body, and a sealing member. The housing is formed with an open receiving chamber for receiving an aerosol generating substrate. The cover body is detachably connected to the housing. The sealing member is at least partially inserted into the opening and sealingly connected to the wall of the receiving chamber. The sealing member is formed with a through hole for discharging air in the receiving chamber in cooperation with the cover body, and the cover body is sealingly connected to the through hole.

[0005] In the aerosol generating device of the present application, air in the receiving chamber is discharged through the through hole in cooperation with the cover body, and the cover body is sealingly connected to the through hole, thereby avoiding the cover body and the sealing member squeezing air when the cover body is closed with the housing, which can prevent the liquid surface of the aerosol generating substrate from being squeezed, and further reduce the risk of liquid leakage and poor sealing. At the same time, the sealing member is sealingly connected to the wall of the receiving chamber, and the hole wall of the through hole is sealingly connected to the cover body, so that the size chain is relatively simple, thereby improving the sealing reliability under extreme conditions. In addition, the aerosol generating substrate can be added to the receiving chamber through the opening of the receiving chamber, and the space is relatively spacious, which is convenient for liquid injection operation, can improve the efficiency, and can also reduce liquid squeezing and leakage.

[0006] In some embodiments, the cover body includes a cover body portion and a sealing column. The cover body portion covers the opening of the receiving chamber. The sealing column protrudes from the cover body portion in a first direction, which is the direction of the cover body portion pointing to the receiving chamber.

[0007] The through hole includes an exhaust hole section and a sealing hole section that are connected to each other in the first direction. The sealing hole section is closer to the receiving chamber than the exhaust hole section. The sealing column is arranged in the exhaust hole section and the sealing hole section. The sealing hole section is closer to the bottom wall of the receiving chamber than the exhaust hole section. The sealing column forms a gap with the hole wall of the exhaust hole section and is sealingly connected to the hole wall of the sealing hole section.

[0008] Thus, in the process of assembling the cover body and the shell, first, the cartridge wall of the cartridge is sealingly connected with the sealing element, the sealing column and the sealing hole segment are spaced apart in the first direction and form a gap with the hole wall of the exhaust hole segment, the gap communicates the cartridge with the atmosphere, and the air in the cartridge can be discharged through the gap; then, under the condition that the cover body is subjected to an external force, the cover body and the sealing element are relatively displaced in the first direction, the sealing column extends into the sealing hole segment until the sealing connection with the hole wall of the sealing hole segment is completed, and meanwhile the gap is blocked from communicating with the cartridge. Such a design allows the sealing element to discharge excess gas in the cartridge before completely sealing the cartridge, thereby avoiding extrusion of the gas on the liquid aerosol generating substrate as much as possible, avoiding liquid leakage, and ensuring good sealing effect.

[0009] In some embodiments, the sealing element includes a first sealing portion and a second sealing portion, the first sealing portion abuts against the end face of the shell corresponding to the opening, and the second sealing portion extends into the cartridge and sealingly connects with the cartridge wall of the cartridge.

[0010] Before the cover body is connected with the shell, the sealing column is spaced apart from the sealing hole segment in the first direction by a certain distance, the gap communicates the cartridge with the external environment of the cartridge, and the cover body is configured to be displaced relative to the shell in the first direction after being subjected to an external force, so as to connect the cover body with the shell and make the sealing column extend into the sealing hole segment and sealingly connect with the hole wall of the sealing hole segment.

[0011] Thus, before the cover body is connected with the shell, the sealing column is spaced apart from the sealing hole segment in the first direction by a certain distance, and when the second sealing portion extends into the cartridge, the cartridge can communicate with the external environment through the gap. When the cover body is subjected to an external force (gland force), the cover body is displaced relative to the shell and the sealing element in the first direction, the cover body and the shell are connected, and the sealing column and the sealing hole segment are sealingly connected, thereby achieving the discharge of excess gas in the cartridge before the assembly of the cover body, the sealing element and the shell, and then completing the sealing of the cartridge, thereby reducing the risk of liquid extrusion and leakage.

[0012] In some embodiments, the aerosol generating device includes a support member arranged on the side of the sealing element away from the cartridge, and the support member is formed with a limiting hole communicating with the exhaust hole segment. The sealing column sequentially passes through the limiting hole, the exhaust hole segment and the sealing hole segment, and the hole diameter of the limiting hole is smaller than the hole diameter of the exhaust hole segment at the position communicating with the limiting hole.

[0013] Thus, the limiting hole communicating with the exhaust hole segment is formed in the support member, the hole diameter of the limiting hole is smaller than the hole diameter of the exhaust hole segment at the position communicating with the limiting hole, and the sealing column sequentially passes through the limiting hole and the exhaust hole segment. Therefore, before the sealing column extends into the exhaust hole segment, the support member can support the sealing column to keep a certain distance apart from the sealing hole segment in the first direction, thereby ensuring the exhaust effect.

[0014] In some embodiments, the sealing post is sealingly connected with the hole wall of the limiting hole.

[0015] In this way, the sealing post is sealingly connected with the hole wall of the limiting hole, thereby enhancing the sealing effect of the sealing post at the position where the sealing post passes through the limiting hole and the exhaust hole section, and further improving the sealing reliability.

[0016] In some embodiments, the sealing post sequentially comprises a first sealing section and a second sealing section along the first direction, the first sealing section is connected with the cover body, the radial dimension of the first sealing section is greater than the radial dimension of the second sealing section, the first sealing section extends into the limiting hole, and the second sealing section forms a gap with the hole wall of the exhaust hole section and sealingly cooperates with the sealing hole section.

[0017] In this way, the radial dimension of the first sealing section is greater than the radial dimension of the second sealing section, the hole diameter of the limiting hole is smaller than the hole diameter of the position where the exhaust hole section communicates with the limiting hole, and the first sealing section is away from the accommodation cavity relative to the second sealing section. During the assembly of the cover body and the shell, the first sealing section is first kept outside the limiting hole, the second sealing section extends into the limiting hole and the exhaust hole section and is spaced from the sealing hole section, and the sealing member can partially extend into the accommodation cavity. The gap is in communication with the accommodation cavity and the external environment through the limiting hole, thereby facilitating the exhaust of the gas in the accommodation cavity; then, when the cover body is subjected to the grommet force, the sealing post moves along the first direction to approach the sealing hole section, the first sealing section extends into the limiting hole, and the second sealing section extends into the sealing hole section, so that the limiting hole plays a limiting role to a certain extent.

[0018] In some embodiments, a guide surface is formed at the connection position of the first sealing section and the second sealing section, and the guide surface converges and extends from the first sealing section to the second sealing section.

[0019] In this way, the guide surface is formed at the connection position of the first sealing section and the second sealing section, and the guide surface converges and extends from the first sealing section to the second sealing section, thereby guiding and assisting the first sealing section to extend into the limiting hole from outside the limiting hole when the sealing post moves along the first direction to approach the sealing hole section.

[0020] In some embodiments, the support member is provided with an exhaust groove, and the exhaust groove is located at the hole rim of the limiting hole and is in communication with the gap.

[0021] In this way, the exhaust groove is formed at the hole rim of the limiting hole and is in communication with the gap, thereby facilitating the exhaust of the gas in the accommodation cavity along the gap and the exhaust groove through the communication of the gap with the external environment before the first sealing section extends into the exhaust hole section.

[0022] In some embodiments, the hole diameter of the exhaust hole section presents a decreasing trend along the first direction, and the hole diameter of the sealing hole section is smaller than or equal to the minimum hole diameter of the exhaust hole section.

[0023] Thus, by presenting a decreasing trend of the hole diameter of the exhaust hole section along the first direction, the exhaust hole section has the largest hole diameter at the end far from the sealing hole section and the smallest hole diameter at the end communicating with the sealing hole section, and the hole diameter of the sealing hole section is less than or equal to the hole diameter of the exhaust hole section at the end communicating with the sealing hole section, so that the hole wall of the exhaust hole section and the outer circumferential surface of the sealing column are spaced apart at least in the radial direction to form a gap, and the sealing column can be effectively sealed when extending into the sealing hole section along the first direction from the exhaust hole section.

[0024] In some embodiments, the sealing member is an elastic component, and the sealing member is configured to be elastically deformed when partially extending into the containing cavity and the cover is subjected to an external force, so as to cause the relative displacement of the sealing member and the sealing column along the first direction.

[0025] Thus, by causing the sealing member to be elastically deformed when partially extending into the containing cavity and the cover is subjected to an external force, the sealing column is caused to move in the exhaust hole section along the first direction and complete the sealing connection with the hole wall of the sealing hole section, so that the assembly process is relatively simple, and the sealing member can play a certain buffering role between the cover and the containing cavity.

[0026] In some embodiments, the number of sealing columns and the number of through holes are both plural, and each sealing column is matched with a through hole in one-to-one correspondence.

[0027] Thus, by matching the plurality of groups of sealing columns and through holes in one-to-one correspondence, the structural stability is improved and the exhaust effect is further optimized, which is beneficial to fully exhaust the gas in the containing cavity and reduce the risk of liquid squeezing.

[0028] In some embodiments, the outer circumferential surface of the sealing member extending into the containing cavity is formed with a first protruding rib; and / or, the hole wall of the through hole is formed with a second protruding rib.

[0029] Thus, by interference fit of the first protruding rib with the cavity wall of the containing cavity, and / or by interference fit of the second protruding rib with the cover, the sealing connection can be completed when the cover is closed, and the lateral sealing manner makes the size chain simple, which is beneficial to improve the sealing reliability under extreme conditions such as falling, high temperature, low temperature, etc.

[0030] In some embodiments, the shell is formed with a clamping structure, the cover is provided with a clamping portion, and the clamping structure and the clamping portion are clamped to fixedly connect the cover and the shell.

[0031] Thus, by clamping the clamping structure and the clamping portion to fixedly connect the cover and the shell, the connection stability of the cover and the shell is ensured, and the assembly operation is relatively simple and convenient. In addition, clamping of the clamping structure and the clamping portion in place can serve as a sign information to confirm that the connection of the cover and the shell is completed, which is convenient for the operator to confirm that the connection of the cover and the shell is completed, and the sealing member completes the sealing of the containing cavity.

[0032] In some embodiments, the cover body comprises a cover main body and a surrounding plate connected to the edge of the cover main body and surrounding the end face of the containing cavity to form an opening, and the sealing element is arranged in the surrounding plate and covers the opening.

[0033] In this way, by connecting the edge of the cover main body to the surrounding plate and surrounding the end face of the containing cavity to form an opening, and arranging the sealing element in the surrounding plate, the sealing element is kept relatively fixed with the cover body before the cover body is connected to the shell, so that the sealing element can be assembled with the cover body to the shell, simplifying the installation steps and facilitating the alignment of the sealing element and the opening.

[0034] In some embodiments, the containing cavity is provided with a heating assembly, and the heating assembly comprises an exhaust pipe arranged through the sealing element and sealedly fitted with the outer wall surface of the exhaust pipe.

[0035] In this way, by arranging the exhaust pipe of the heating assembly through the sealing element and sealedly fitting the sealing element with the outer wall surface of the exhaust pipe, the risk of leakage of aerosol or aerosol generating substrate from the exhaust pipe is reduced.

[0036] In some embodiments, the cover body is formed with a suction air channel, and the suction air channel is in communication with the exhaust pipe and the external environment of the cover body.

[0037] In this way, by forming the suction air channel in the cover body and making the suction air channel in communication with the exhaust pipe and the external environment of the cover body, the cover body has the function of a suction nozzle, making full use of the structural space and saving additional assembly procedures.

[0038] In some embodiments, the sealing element is formed with a ventilation hole, a third protruding rib is formed on the hole wall of the ventilation hole, and the exhaust pipe is arranged through the ventilation hole.

[0039] In this way, by forming the third protruding rib on the hole wall of the ventilation hole and arranging the exhaust pipe through the ventilation hole, the outer peripheral surface of the exhaust pipe can be interference-fitted with the third protruding rib, thereby ensuring good sealing effect of the exhaust pipe and simplifying assembly.

[0040] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0041] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description, taken in conjunction with the accompanying drawings, in which:

[0042] Figure 1 is a schematic perspective view of an aerosol-generating device according to an embodiment of the present application;

[0043] Figure 2 is Figure 1 is a schematic structural view of the aerosol-generating device of in a top view.

[0044] Figure 3 is a sectional structure diagram of the aerosol generating device of the present application along the direction of A-A; Figure 2

[0045] Figure 4 is a partial enlarged diagram of the aerosol generating device of the present application; Figure 3

[0046] Figure 5 is a three-dimensional structure diagram of the sealing member of the aerosol generating device of the present application;

[0047] Figure 6 is a structure diagram of the aerosol generating device of the present application in the first stage of the assembly process;

[0048] Figure 7 is a partial enlarged sectional diagram of the aerosol generating device of the present application; Figure 6

[0049] Figure 8 is a structure diagram of the aerosol generating device of the present application in the second stage of the assembly process;

[0050] Figure 9 is a partial enlarged sectional diagram of the aerosol generating device of the present application; Figure 8

[0051] Figure 10 is a three-dimensional structure diagram of the cover of the present application.

[0052] Figure 11 is a structure diagram of the aerosol generating device of the present application without the cover;

[0053] Figure 12 is a three-dimensional structure diagram of the support of the present application.

[0054] Figure 13 is a flow chart of the manufacturing method of the aerosol generating device of the present application.

[0055] Explanation of main element symbols:

[0056] ​​​​100-Aerosol generating device; 10-Shell; 11-Containing chamber; 12-Opening; 13-Interlocking structure; 14-Guide groove; 20-Cover; 21-Cover body; 210-Suction passage; 22-Sealing column; 221-First sealing section; 222-Second sealing section; 223-Guide surface; 23-Interlocking part; 24-Enclosure plate; 241-Cavity; 25-Positioning column; Z-First direction; 30-Sealing element; 301-Through hole; 31-Exhaust 32-Sealing hole section; 322-Second rib; 33-Gap; 34-First sealing part; 35-Second sealing part; 351-First rib; 36-Vent hole; 363-Third rib; 40-Support member; 41-Limiting hole; 42-Structural rib; 43-Limiting rib; 44-Exhaust groove; 45-Suction hole; 46-Positioning hole; 50-Heating component; 51-Exhaust pipe; 511-Liquid inlet; 60-Battery; 70-Control component. Detailed Implementation

[0057] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0058] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0059] In the description of the application, it is necessary to point out that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "linking" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection or can communicate with each other; it can be directly connected, or indirectly connected through intermediate medium, or the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0060] In the present application, unless otherwise explicitly specified and limited, the first feature "on" or "under" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0061] The following disclosure provides many different embodiments or examples for implementing different structures of the application. In order to simplify the disclosure of the application, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the application. In addition, the application can repeatedly refer to numbers and / or letters in different examples. Such repetition is for the purpose of simplification and clarity, and in itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the application provides examples of various specific processes and materials, but those skilled in the art can realize the application of other processes and / or the use of other materials.

[0062] Please refer to Figure 1 and Figure 2 , the aerosol generating device 100 is a structure capable of generating aerosol by acting on the aerosol generating substrate through resistance heating, electromagnetic heating, microwave heating, laser irradiation, infrared light irradiation, ultrasonic or mechanical oscillation. The aerosol generating substrate (not shown in the figure) is a plant leaf product that has been processed and can generate aerosol after being heated. The form of the aerosol generating substrate can be all-solid, semi-solid or liquid.

[0063] Aerosol generating substrate is atomized to form aerosol by heating, which can be visible or invisible and can include vapor (e.g., fine particulate matter in a gaseous state, which is usually liquid or solid at room temperature), as well as gas and liquid droplets of condensed vapor. Users can inhale aerosol into the oral cavity, nasal cavity or lungs through the mouth or nose, and aerosol inhaled into the user's respiratory system can be used for eating, medicine, health care, entertainment and other purposes.

[0064] In the related art, the aerosol generating device needs to inject liquid aerosol generating substrate into the accommodation cavity during assembly and ensure the sealing of the accommodation cavity. The aerosol generating substrate is directly injected from the opening of the accommodation cavity, which is spacious and convenient to operate. Such a design requires a silicone pad to be arranged between the end face of the opening of the accommodation cavity and the mouthpiece to ensure the sealing of the end face, so the flatness of the silicone pad and the end face is required to be high, and the size chain is also long. When the silicone pad is assembled, a compression amount of 0.3-0.6 mm is generated, so that the mouthpiece and the shell forming the accommodation cavity are always in a stressed state. In extreme conditions such as falling, high and low temperature, poor sealing is prone to occur.

[0065] To simplify the size chain of the sealing member and ensure the sealing reliability under extreme conditions, a liquid injection hole can be provided and a sealing pad and a sealing column can be used to seal the accommodation cavity and the liquid injection hole, respectively. However, the liquid injection hole has a small diameter, high precision is required for liquid injection, and the liquid surface of the aerosol generating substrate is easily squeezed, causing liquid leakage.

[0066] Therefore, the aerosol generating device 100 provided by the embodiments of the present application adopts side sealing of the accommodation cavity 11, which can retain the liquid injection mode of the opening 12, and the sealing member 30 can discharge the gas in the accommodation cavity 11 before sealing, thereby reducing the risk of liquid squeezing and leakage.

[0067] Please refer to Figure 3 and Figure 4 The aerosol generating device 100 includes a shell 10, a cover 20 and a sealing member 30. The shell 10 forms an accommodation cavity 11 with an opening 12, and the accommodation cavity 11 is used to accommodate aerosol generating substrate. The cover 20 is detachably connected to the shell 10. The sealing member 30 at least partially extends into the opening 12 and is sealingly connected to the cavity wall of the accommodation cavity 11. The sealing member 30 forms a through hole 301, which is used to cooperate with the cover 20 to discharge air in the accommodation cavity 11. The cover 20 is sealingly connected to the through hole 301.

[0068] In the aerosol generating device 100 of the embodiments of the present application, the air in the accommodation cavity 11 is discharged through the through hole 301 in cooperation with the cover 20, and then sealed with the cover 20, so as to avoid the air being squeezed by the cover 20 and the sealing element 30 when the cover 20 is closed with the shell 10, thereby reducing the risk of liquid leakage and poor sealing. At the same time, the sealing cooperation between the sealing element 30, the hole wall of the through hole 301 and the cover 20 makes the size chain relatively simple, thereby improving the sealing reliability under extreme conditions. In addition, the aerosol generating substrate can be added to the accommodation cavity 11 through the opening 12 of the accommodation cavity 11, and the space is relatively spacious, which is convenient for liquid injection operation, can improve the efficiency, and can also reduce liquid squeezing and leakage.

[0069] In some embodiments, the cover 20 includes a cover body 21 covering the opening 12 of the accommodation cavity 11 and a sealing column 22 protruding from the cover body 21 in a first direction Z, the first direction Z being the direction in which the cover body 21 points to the accommodation cavity 11;

[0070] The through hole 301 includes an exhaust hole section 31 and a sealing hole section 32 which are in communication with each other in the first direction Z, the sealing hole section 32 being closer to the bottom wall of the accommodation cavity 11 than the exhaust hole section 31, and the sealing column 22 being arranged in the exhaust hole section 31 and the sealing hole section 32, the sealing column 22 forming a gap 33 with the hole wall of the exhaust hole section 31 and being in sealing connection with the hole wall of the sealing hole section 32.

[0071] In the aerosol generating device 100 of the embodiments of the present application, the sealing element 30 forms the exhaust hole section 31 and the sealing hole section 32 which are in communication with each other in the first direction Z, the sealing hole section 32 being closer to the bottom wall of the accommodation cavity 11 than the exhaust hole section 31, and the sealing column 22 of the cover 20 extending into the exhaust hole section 31 and the sealing hole section 32, the sealing column 22 forming the gap 33 with the hole wall of the exhaust hole section 31 and being in sealing connection with the hole wall of the sealing hole section 32, so that during the assembly of the cover 20 and the shell 10, first, the cavity wall of the accommodation cavity 11 is in sealing cooperation with the sealing element 30, the sealing column 22 is spaced apart from the sealing hole section 32 in the first direction Z and forms the gap 33 with the hole wall of the exhaust hole section 31, at this time, the gap 33 communicates the accommodation cavity 11 with the atmosphere, and the air in the accommodation cavity 11 can be discharged through the gap 33; then, under the condition that the cover 20 is subjected to external force, the cover 20 and the sealing element 30 are relatively displaced in the first direction Z, the sealing column 22 extends into the sealing hole section 32 until the sealing connection with the hole wall of the sealing hole section 32 is completed, and at the same time, the gap 33 is blocked from communicating with the accommodation cavity 11. Such a design allows the sealing element 30 to discharge excess gas in the accommodation cavity 11 before completely sealing the accommodation cavity 11, so as to avoid the gas squeezing the liquid aerosol generating substrate as much as possible, thereby avoiding liquid leakage and ensuring good sealing effect.

[0072] Meanwhile, the sealing cooperation between the sealing member 30 and the wall of the cartridge, and between the sealing column 22 and the hole wall of the sealing hole section 32 ensures a relatively simple dimension chain, thereby improving the sealing reliability under extreme conditions. In addition, the aerosol generating substrate can be added to the accommodation cartridge 11 through the opening 12 of the accommodation cartridge 11, and the space is relatively spacious, facilitating the liquid injection operation, which can improve the efficiency and reduce the liquid squeezing and leakage.

[0073] For the convenience of description, the first direction Z defined in the present application indicates the up-down direction, and the direction from the cover body 20 to the shell 10 is from top to bottom, and vice versa, the direction from the shell 10 to the cover body 20 is from bottom to top. The cover body 20 can be assembled with the shell 10 from top to bottom.

[0074] The embodiments of the present application are applicable to a type of aerosol generating device 100 that preloads the aerosol generating substrate during the manufacturing process, and are particularly applicable to the device type that uses liquid or semi-solid aerosol generating substrate. Before the cover body 20 and the shell 10 are assembled, the aerosol generating substrate is injected into the accommodation cartridge 11 from the opening 12, and after the injection of the aerosol generating substrate is completed, the cover body 20 and the sealing member 30 are assembled to the shell 10 and seal the accommodation cartridge 11.

[0075] Specifically, the cross-sectional outer contour shape of the shell 10 matches the cross-sectional outer contour shape of the cover body 21, so that the cover body 21 can cover the end surface of the shell 10 corresponding to the opening 12. The cross-sectional shape of the accommodation cartridge 11 can be the same as or different from the cross-sectional outer contour shape of the shell 10, and the cross-sectional outer contour shape of the part of the sealing member 30 extending into the accommodation cartridge 11 is the same as and matches the cross-sectional shape of the accommodation cartridge 11. The cross-sectional outer contour shape of the shell 10 includes but is not limited to a circular shape, an elliptical shape, a triangular shape, a quadrilateral shape, a polygonal shape, a star shape, a racetrack shape, or other irregular shapes, and the cross-sectional shape of the accommodation cartridge 11 can be a circular shape, an elliptical shape, a triangular shape, a quadrilateral shape, a polygonal shape, a racetrack shape, or other irregular shapes. Among them, the cross section refers to the cross section made along the transverse direction perpendicular to the first direction Z.

[0076] During the assembly of the cover body 20 and the shell 10, the sealing member 30 partially penetrates the opening 12 and extends into the accommodation cartridge 11 along the first direction Z, and the part of the sealing member 30 extending into the accommodation cartridge 11 can be in interference fit with the accommodation cartridge 11 to ensure the sealing effect. In order to facilitate the extension of the sealing member 30, the contour lines of the cross sections of the sealing member 30 and the accommodation cartridge 11 can both be curves. For example, the cross sections of the accommodation cartridge 11 and the opening 12 are both elliptical. The outer contour shape of the cross section of the shell 10 and the cross-sectional outer contour of the cover body 21 are also elliptical.

[0077] The sealing member 30 is arranged in the cover body 20, specifically in the region opposite to the opening 12 of the cover main body 21. The exhaust hole section 31 and the sealing hole section 32 can jointly penetrate the sealing member 30 along the first direction Z, and the exhaust hole section 31 is located above the sealing hole section 32. The cross-sectional shape of the exhaust hole section 31 and the cross-sectional shape of the sealing hole section 32 are matched with the cross-sectional shape of the sealing column 22. For example, the sealing column 22 is a cylinder, and the cross-sectional shape of the exhaust hole section 31 and the cross-sectional shape of the sealing column 22 are both circular. The diameter of the exhaust hole section 31 can be greater than the diameter of the sealing column 22, and the hole wall of the exhaust hole section 31 is spaced apart from the outer circumferential surface of the sealing column 22 to form a gap 33. The sealing column 22 can be in interference fit with the sealing hole section 32, and the minimum diameter of the sealing column 22 is slightly smaller than the diameter of the sealing column 22.

[0078] Please refer to Figure 4 、 Figure 5 and Figure 9 In some embodiments, the sealing member 30 includes a first sealing portion 34 and a second sealing portion 35. The first sealing portion 34 abuts the end surface of the shell 10 corresponding to the opening 12, and the second sealing portion 35 extends into the containing cavity 11 and is in sealing connection with the cavity wall of the containing cavity 11.

[0079] Before the cover body 20 is connected with the shell 10, the sealing column 22 is spaced apart from the sealing hole section 32 along the first direction Z by a certain distance, and the gap 33 is in communication with the containing cavity 11 and the external environment of the containing cavity 11. The cover body 20 is configured to be displaced relative to the shell 10 along the first direction Z after being subjected to an external force, so as to connect the cover body 20 with the shell 10 and make the sealing column 22 extend into the sealing hole section 32 and be in sealing connection with the hole wall of the sealing hole section 32.

[0080] In this way, before the cover body 20 is connected with the shell 10, the sealing column 22 is spaced apart from the sealing hole section 32 along the first direction Z by a certain distance, and when the second sealing portion 35 extends into the containing cavity 11, the containing cavity 11 can be in communication with the external environment through the gap 33. When the cover body 20 is subjected to an external force (gland force), the cover body 20 moves relative to the shell 10 and the sealing member 30 along the first direction Z, the cover body 20 is connected with the shell 10, and the sealing column 22 is in sealing connection with the sealing hole section 32, so as to realize the process of first exhausting the excess gas in the containing cavity 11 and then completing the sealing of the containing cavity 11 during the assembly of the cover body 20, the sealing member 30 and the shell 10, thereby reducing the risk of liquid squeezing and leakage.

[0081] Specifically, the sealing member 30 can be in the shape of a disc as a whole, and the first sealing portion 34 and the second sealing portion 35 are two parts of the sealing member 30 that are stacked on top of each other and connected. The second sealing portion 35 extends into the accommodation cavity 11 from the opening 12 and is sealingly connected to the cavity wall of the accommodation cavity 11. The second sealing portion 35 has the same cross-sectional shape as the accommodation cavity 11 and can be in radial interference fit with the cavity wall of the accommodation cavity 11. For example, the cross-sectional shape of the accommodation cavity 11 and the opening 12 are both elliptical, and the cross-sectional shape of the second sealing portion 35 is also elliptical.

[0082] Optionally, the shell 10 surrounds the accommodation cavity 11, and the outer contour of the shell 10 surrounding the opening 12 has a diameter larger than that of the opening 12. The edge of the first sealing portion 34 in the transverse direction can extend beyond the second sealing portion 35 and abut against the end surface of the shell 10 surrounding the opening 12.

[0083] Optionally, the cover 20 has a cavity 241 formed therein, and the cavity 241 is in communication with the external environment of the aerosol generating device 100. The sealing member 30 is arranged in the cavity 241, and the gap 33 can be in communication with the cavity 241 before the cover 20 is connected to the shell 10. During the assembly of the shell 10 and the cover 20, the cover 20 and the sealing member 30 gradually move downward along the first direction Z until the connection of the cover 20 and the shell 10 is completed. During this process, the relative positions of the sealing column 22 and the sealing member 30 are in the following three stages:

[0084] The first stage is shown in FIGS. 1A and 1B, where the cover 20 and the sealing member 30 are both separated from the shell 10, and the sealing column 22 extends into the exhaust hole section 31 and is spaced apart from the sealing hole section 32 along the first direction Z. Figure 6 and Figure 7 In the first stage, the gap 33 between the sealing column 22 and the hole wall of the exhaust hole section 31 is in communication with the cavity 241 in the cover 20 upwardly and can be in communication with the external environment of the aerosol generating device 100 through the cavity 241.

[0085] The second stage is shown in FIGS. 2A and 2B, where the cover 20 and the sealing member 30 are both connected to the shell 10, and the sealing column 22 extends into the sealing hole section 32 and is spaced apart from the exhaust hole section 31 along the first direction Z. Figure 8 and Figure 9As shown, the cover 20 is not connected with the shell 10, the first sealing part 34 abuts against the end face of the shell 10 corresponding to the opening 12, and the second sealing part 35 extends into the accommodating cavity 11, and the second sealing part 35 can be in interference fit with the cavity wall of the accommodating cavity 11 to achieve a sealed connection. In the second stage, the gap 33 is in communication with the external environment upwardly and with the sealed hole section 32 downwardly, and the lower end of the sealed hole section 32 is in communication with the accommodating cavity 11, so that the gas in the accommodating cavity 11 can be discharged to the external environment of the aerosol generating device 100, i.e., to the atmospheric environment, along the sealed hole section 32→ the gap 33→ the cavity 241 in the cover 20. From the first stage to the second stage, the relative position of the sealing column 22 and the sealing member 30 can remain unchanged, the gap 33 remains in communication with the accommodating cavity 11 and the external environment, and the gas in the accommodating cavity 11 is discharged sufficiently.

[0086] The third stage is shown in Figure 3 and Figure 4 , the operator applies a cover pressing force to the cover 20, and a pushing force can also be applied to the shell 10, so that the cover 20 moves downwardly relative to the shell 10 and is connected with the shell 10. In the third stage, the position of the sealing member 30 can be fixed relative to the shell 10, the sealing column 22 moves downwardly relative to the sealing member 30 and extends into the sealed hole section 32, and is in sealed connection with the hole wall of the sealed hole section 32, at this time, the gap 33 is isolated from the accommodating cavity 11 by the sealing column 22 and the sealed hole section 32, and the sealing member 30 also completes the sealing of the accommodating cavity 11.

[0087] Please refer to Figure 4 , Figure 7 and Figure 9 , in some embodiments, the aerosol generating device 100 includes a support 40 arranged on the side of the sealing member 30 away from the accommodating cavity 11, and the support 40 is formed with a limiting hole 41 in communication with the exhaust hole section 31, and the sealing column 22 sequentially passes through the limiting hole 41, the exhaust hole section 31 and the sealed hole section 32, and the hole diameter of the limiting hole 41 is smaller than the hole diameter of the position where the exhaust hole section 31 is in communication with the limiting hole 41.

[0088] In this way, by forming the limiting hole 41 in communication with the exhaust hole section 31 through the support 40, the hole diameter of the limiting hole 41 is smaller than the hole diameter of the position where the exhaust hole section 31 is in communication with the limiting hole 41, and the sealing column 22 sequentially passes through the limiting hole 41 and the exhaust hole section 31, so that before the sealing column 22 extends into the exhaust hole section 31, the support 40 can support the sealing column 22 to keep a certain distance from the sealed hole section 32 in the first direction Z, thereby ensuring the exhaust effect.

[0089] Specifically, the support 40 is fixedly connected with the sealing member 30. The support 40 and the sealing member 30 can be separate components and are fixedly connected by means of adhesive connection, fixing member connection, snap connection, etc. The support 40 and the sealing member 30 can also be integrally formed as a whole. The support 40 and the sealing member 30 can be stacked one above the other and are arranged together in the cover body 20. Further, the support 40 is connected to the side end face of the first sealing portion 34 away from the second sealing portion 35.

[0090] In the first and second stages, the sealing column 22 passes through the limiting hole 41 and extends into the exhaust hole section 31, and the outer peripheral surface of the sealing column 22 also forms the exhaust gap 33 with the limiting hole 41. Since the hole diameter of the limiting hole 41 is smaller than the hole diameter of the position where the exhaust hole section 31 communicates with the limiting hole 41, the exhaust gap 33 communicates with the gap 33, thereby ensuring the exhaust effect. In addition, since the hole diameter of the limiting hole 41 is smaller than the hole diameter of the position where the exhaust hole section 31 communicates with the limiting hole 41, the support 40 can support the cover body 20 through the sealing column 22, so as to support the cover body 20 above the sealing member 30 and keep the cover body 21 apart from the sealing member 30 by a certain distance, thereby ensuring the communication between the gap 33 and the accommodation cavity 11 and the external environment.

[0091] Optionally, the side surface of the support 40 away from the accommodation cavity 11 abuts against the inner wall surface of the cover body 20 in the third stage, i.e., when the cover body 20 is connected with the shell 10.

[0092] Optionally, the support 40 includes a plurality of structure ribs 42 and limiting ribs 43. The structure ribs 42 are used to connect the limiting ribs 43, and the plurality of structure ribs 42 and the plurality of limiting ribs 43 form a hollow structure, thereby providing space for other components inside the aerosol generating device 100. The limiting ribs 43 can be annular, and the center of one or more annular limiting ribs 43 can form the limiting hole 41.

[0093] In some embodiments, the sealing column 22 is sealingly connected with the hole wall of the limiting hole 41.

[0094] In this way, the sealing column 22 is sealingly connected with the hole wall of the limiting hole 41, thereby strengthening the sealing effect of the sealing column 22 passing through the limiting hole 41 and the exhaust hole section 31, and further improving the sealing reliability.

[0095] Specifically, in the first and second stages, the exhaust gap 33 is formed between the sealing post 22 and the hole wall of the limiting hole 41, and the sealing post 22 is in non-fixed connection; in the third stage, that is, when the cover body 20 is connected with the shell 10, the sealing post 22 moves downward relative to the sealing member 30 and the support member 40, and the part of the sealing post 22 located outside the limiting hole 41 in the second stage extends into the limiting hole 41 and is in sealing connection with the limiting hole 41. In the third stage and during use of the aerosol generating device 100, the side of the gap 33 close to the containing cavity 11 along the first direction Z is closed due to the sealing connection between the sealing post 22 and the hole wall of the sealing hole section 32, and the side of the gap 33 away from the containing cavity 11 along the first direction Z is closed due to the sealing connection between the sealing post 22 and the hole wall of the limiting hole 41.

[0096] Please refer to Figure 4 、 Figure 7 and Figure 9 In some embodiments, the sealing post 22 includes, in sequence along the first direction Z, a first sealing section 221 and a second sealing section 222, the first sealing section 221 is connected with the cover body 21, the radial dimension of the first sealing section 221 is greater than that of the second sealing section 222, the first sealing section 221 extends into the limiting hole 41, and the second sealing section 222 forms the gap 33 with the hole wall of the exhaust hole section 31 and is in sealing cooperation with the sealing hole section 32.

[0097] In this way, the radial dimension of the first sealing section 221 is greater than that of the second sealing section 222, the hole diameter of the limiting hole 41 is smaller than that of the part of the exhaust hole section 31 communicating with the limiting hole 41, and the first sealing section 221 is away from the containing cavity 11 relative to the second sealing section 222. During assembly of the cover body 20 and the shell 10, the first sealing section 221 is first kept outside the limiting hole 41, the second sealing section 222 extends into the limiting hole 41 and the exhaust hole section 31 and is spaced from the sealing hole section 32, and the sealing member 30 can partially extend into the containing cavity 11, the gap 33 is in communication with the containing cavity 11 and the external environment through the limiting hole 41, thereby facilitating the exhaust of the gas in the containing cavity 11; then when the cover body 20 is subjected to the grommet force, the sealing post 22 moves along the first direction Z to be close to the sealing hole section 32, the first sealing section 221 extends into the limiting hole 41, and the second sealing section 222 extends into the sealing hole section 32, so that the limiting hole 41 plays a limiting role to a certain extent.

[0098] Specifically, the cross-sectional shape of the sealing column 22 includes, but is not limited to, a circle, an ellipse, a quadrilateral, or a polygon. The cross-sectional shapes of the first sealing section 221 and the second sealing section 222 can be the same or different. The radial dimensions of the first sealing section 221 and the second sealing section 222 refer to the dimensions along the direction perpendicular to the axial direction of the sealing column 22, that is, perpendicular to the first direction Z. For example, the cross-sectional shape of the first sealing section 221 is circular, and the cross-sectional shape of the second sealing section 222 is also circular, but the diameter of the second sealing section 222 is smaller than that of the first sealing section 221. The first sealing section 221 and the second sealing section 222 can be coaxial. Correspondingly, the limiting hole 41 is a circular hole, and the limiting hole 41, the venting hole section 31, and the sealing hole section 32 are all coaxial with the sealing column 22.

[0099] like Figure 7 and Figure 9 As shown, in the first and second stages, the diameter of the first sealing section 221 is slightly larger than the diameter of the limiting hole 41, and the first sealing section 221 protrudes outside the limiting hole 41. The second sealing section 222 passes through the limiting hole 41, and its lower end extends into the venting hole section 31. The second sealing section 222 and the wall of the venting hole section 31 form a gap 33, which connects the sealing hole section 32 to the atmospheric environment. In the second stage, the gap 33 connects to the receiving chamber 11 through the sealing hole section 32.

[0100] like Figure 4 As shown, in the third stage, the sealing column 22 moves downward relative to the sealing element 30, and the first sealing section 221 enters the limiting hole 41 downward. The limiting hole 41 can be deformed by the compression of the first sealing section 221. Due to the compression between the first sealing section 221 and the wall of the limiting hole 41, the first sealing section 221 can seal with the limiting hole 41.

[0101] In the third stage, the second sealing section 222 moves downward relative to the seal 30 and at least partially exits the limiting hole 41, and the lower end of the second sealing section 222 extends through the vent section 31 into the sealing hole section 32. In the third stage, the second sealing section 222 is partially located in the vent section 31 and forms a gap 33 with the hole wall of the vent section 31, and the lower end of the second sealing section 222 is sealed to the hole wall of the sealing hole section 32.

[0102] Please see Figure 7 , Figure 9 and Figure 10 In some embodiments, a guide surface 223 is formed at the connection between the first sealing section 221 and the second sealing section 222, and the guide surface 223 extends from the first sealing section 221 toward the second sealing section 222.

[0103] Thus, the guide surface 223 is formed at the joint of the first sealing segment 221 and the second sealing segment 222, and the guide surface 223 extends from the first sealing segment 221 to the second sealing segment 222 and converges gradually, so that when the sealing column 22 moves towards the sealing hole segment 32 along the first direction Z, the guide surface 223 can guide and assist the first sealing segment 221 to extend into the limiting hole 41 from outside the limiting hole 41.

[0104] Specifically, the guide surface 223 can surround the first sealing segment 221 and the second sealing segment 222 along the circumference of the sealing column 22, extend from the first sealing segment 221 to the second sealing segment 222, and converge gradually. The guide surface 223 can be a straight surface or a curved surface, and the guide surface 223 or a tangent of the guide surface 223 forms an angle less than 90° with the first direction Z.

[0105] Please refer to Figure 9 , Figure 11 and Figure 12 In some embodiments, the support 40 is formed with an exhaust groove 44 located at the hole edge of the limiting hole 41, and the exhaust groove 44 is in communication with the gap 33.

[0106] Thus, the exhaust groove 44 is formed at the hole edge of the limiting hole 41 and is in communication with the gap 33, so that before the first sealing segment 221 extends into the exhaust hole segment 31, the gap 33 is in communication with the external environment through the exhaust groove 44, thereby facilitating the gas in the containing bin 11 to be discharged along the gap 33 and the exhaust groove 44.

[0107] Specifically, the exhaust groove 44 can be formed by partially hollowing the end surface of the support 40 at the joint of the limiting hole 41 and the exhaust hole segment 31. A cavity 241 in communication with the atmosphere is formed in the cover 20, and the support 40 is arranged in the cavity 241 and the exhaust groove 44 is in communication with the cavity 241, so that the gap 33 is in communication with the atmosphere through the exhaust groove 44 and the cavity 241 in the second stage.

[0108] Optionally, the support 40 includes an annular limiting rib 43, the limiting hole 41 penetrating through the support 40 is formed at the center of the limiting rib 43, the slot of the exhaust groove 44 is formed at the end surface of the limiting rib 43 facing the exhaust hole segment 31, and the exhaust groove 44 penetrates the inner and outer surfaces of the limiting rib 43 along the radial direction of the limiting hole 41.

[0109] Optionally, the number of exhaust grooves 44 is multiple, and the multiple exhaust grooves 44 are arranged at intervals along the circumference of the limiting hole 41. Thus, the exhaust efficiency can be improved.

[0110] Please refer to Figure 4 and Figure 9 In some embodiments, the hole diameter of the exhaust hole segment 31 has a decreasing trend along the first direction Z, and the hole diameter of the sealing hole segment 32 is less than or equal to the minimum hole diameter of the exhaust hole segment 31.

[0111] Thus, by presenting a decreasing trend of the hole diameter of the exhaust hole section 31 along the first direction Z, the exhaust hole section 31 has the largest hole diameter at the end away from the sealing hole section 32 and the smallest hole diameter at the end communicating with the sealing hole section 32, and the hole diameter of the sealing hole section 32 is less than or equal to the hole diameter of the exhaust hole section 31 at the end communicating with the sealing hole section 32, so that the hole wall of the exhaust hole section 31 and the outer circumferential surface of the sealing column 22 are spaced apart at least in the radial direction to form a gap 33, and the sealing column 22 can be effectively sealed when extending into the sealing hole section 32 along the first direction Z from the exhaust hole section 31.

[0112] Specifically, the hole diameter of the exhaust hole section 31 can gradually decrease from top to bottom along the first direction Z, and the exhaust hole section 31 can be in an inverted conical shape. In some embodiments, the hole diameter of the limiting hole 41 is smaller than the largest hole diameter of the exhaust hole section 31.

[0113] Optionally, the sealing hole section 32 is a straight hole, the hole wall of the sealing hole section 32 is connected with the hole wall of the exhaust hole section 31, and the hole diameter of the exhaust hole section 31 at the connection is the smallest, and the diameter of the sealing hole section 32 can be slightly smaller than or equal to the hole diameter of the exhaust hole section 31 at the connection.

[0114] In some embodiments, the diameter of the first sealing section 221 matches the diameter of the limiting hole 41 and is smaller than the largest diameter of the exhaust hole section 31, the diameter of the second sealing section 222 is smaller than or equal to the smallest diameter of the exhaust hole section 31, and the diameter of the second sealing section 222 is slightly larger than or equal to the diameter of the sealing hole section 32.

[0115] In some embodiments, the number of the sealing columns 22 and the through holes 301 is multiple, and each sealing column 22 is matched with a through hole 301 one by one.

[0116] Thus, by matching the multiple groups of sealing columns 22 and through holes 301, the structural stability is improved and the exhaust effect is further optimized, which is conducive to fully exhausting the gas in the containing cavity 11 and reducing the risk of liquid squeezing.

[0117] Specifically, the multiple sealing columns 22 are distributed on the cover body 21 and spaced apart from each other, and the distribution positions of the multiple sealing columns 22 can be adapted to the shape structure of the cover body 21 and other structures in the cover 20. The distance between the adjacent two sealing columns 22 can be equal or unequal. For example, the outer contour shape of the cross section of the cover body 21 is elliptical, the number of the sealing columns 22 is three, and two of the sealing columns 22 are opposite to and spaced apart from the other sealing column 22 along the long axis direction of the cross section of the cover body 21, and the two sealing columns 22 on the same side of the cover body 21 along the long axis direction are arranged side by side along the short axis direction.

[0118] A plurality of through holes 301 are distributed on the sealing member 30 along the radial direction of the through holes 301, each of the through holes 301 comprises a set of exhaust hole segments 31 and sealing hole segments 32, and each set of exhaust hole segments 31 and sealing hole segments 32 is opposite to the corresponding sealing column 22 along the first direction Z.

[0119] In some embodiments, a plurality of limiting holes 41 are formed on the support 40, each of the limiting holes 41 is located directly above a set of exhaust hole segments 31 and sealing hole segments 32. In this way, after each sealing column 22 is aligned with the corresponding limiting hole 41, the sealing column 22 is pushed into the exhaust hole segments 31 and the sealing hole segments 32, which is beneficial to positioning the relative position of the cover 20 and the sealing member 30.

[0120] Referring to Figure 10 Figure 11 In other embodiments, the cover 20 further comprises a positioning column 25 extending from the cover base 21 to the housing 10 along the first direction Z, the support 40 is formed with a positioning hole 46 opposite to the positioning column 25 along the first direction Z, and the positioning column 25 is at least partially inserted into the positioning hole 46. The end of the positioning column 25 away from the cover base 21 is accommodated in the positioning hole 46 and can be spaced apart from or abutted against the sealing member 30. In this way, the positioning hole 46 can jointly function as a positioning hole with the limiting hole 41.

[0121] Referring to Figure 4 and Figure 9 In some embodiments, the sealing member 30 extending into the outer peripheral surface of the containing cavity 11 is formed with a first protruding rib 351; and / or, the hole wall of the through hole 301 is formed with a second protruding rib 322.

[0122] In this way, by interference fit of the first protruding rib 351 with the cavity wall of the containing cavity 11, and / or by interference fit of the second protruding rib 322 with part of the cover 20, the sealing connection is facilitated when the cover is closed, and the lateral sealing manner makes the size chain simple, which is beneficial to improve the sealing reliability under extreme conditions such as falling, high temperature, low temperature, etc.

[0123] Specifically, the first protruding rib 351 can extend along the circumference of the containing cavity 11, for example, the first protruding rib 351 continuously extends along the circumference of the containing cavity 11 and surrounds the second sealing portion 35 for one turn. The number of first protruding ribs 351 can be one, two, three or more, and two or more first protruding ribs 351 are arranged along the axial direction of the sealing member 30.

[0124] The second rib 322 is formed in the sealing hole section 32, and the second rib 322 is interference-fitted with the end of the sealing post 22 away from the cover body 21. When the position of the second rib 322 on the hole wall of the sealing hole section 32 along the first direction Z is connected with the cover body 20 and the housing 10, the relative displacement between the sealing member 30 and the cover body 20 is matched. For example, the second rib 322 is formed at the connection between the vent hole section 31 and the sealing hole section 32. In the second stage, the end of the sealing post 22 away from the cover body 21 extends into the vent hole section 31 and is spaced a certain distance from the second rib 322 along the first direction Z. In the third stage, the cover body 20 or the housing 10 is subjected to an external force, and the relative displacement between the cover body 20 and the sealing member 30 causes the end of the sealing post 22 away from the cover body 21 to extend into the sealing hole section 32 and be sealed with the first rib 351.

[0125] In some embodiments, the seal 30 is an elastic member configured to elastically deform when partially inserted into the receiving chamber 11 and the cover 20 is subjected to an external force, so that the seal 30 and the sealing post 22 are displaced relative to each other along a first direction Z.

[0126] Thus, when the sealing element 30 partially extends into the receiving chamber 11 and the cover 20 is subjected to external force, it undergoes compressive elastic deformation, causing the sealing column 22 to move along the first direction Z in the venting section 31 and complete the sealing connection with the wall of the sealing section 32. This makes the assembly process simpler, and the sealing element 30 can play a certain buffering role between the cover 20 and the receiving chamber 11.

[0127] Specifically, in the second stage of the assembly process between the housing 10 and the cover 20, the sealing element 30 extends downward into the receiving chamber 11 and seals and fixes itself to the receiving chamber 11. In the third stage, when the user applies a downward pressing force to the cover 20, the cover 20 continues to move downward relative to the housing 10, applying pressure to the sealing element 30 and causing it to undergo compressive elastic deformation. It should be noted that the relative displacement of the sealing column 22 relative to the vent section 31 is the relative displacement of the sealing element 30 compressing along the first direction Z and the housing 10 moving downward along the first direction Z.

[0128] Optionally, such as Figure 9 As shown, in the second stage, the end face of the seal 30 facing away from the cover body 21 abuts against the end face of the housing 10 corresponding to the opening 12. The peripheral surface of the seal 30 exposed outside the receiving chamber 11 can abut against the surrounding plate 24 of the cover body 20. As the seal 30 is compressed and the cover body 20 moves, the relative position of the seal 30 abutting against the surrounding plate 24 changes.

[0129] Optionally, the sealing member 30 is provided with a support member 40 on the side facing the cover body 21, the support member 40 is fixedly connected with the sealing member 30 and can move synchronously with the sealing member 30 relative to the cover body 20 with the compression of the sealing member 30.

[0130] Optionally, the sealing member 30 can be made of materials such as elastic resin and silica gel.

[0131] Please refer to Figure 4 and Figure 7 In some embodiments, the shell 10 is formed with a clamping structure 13, the cover body 20 is provided with a clamping portion 23, the clamping structure 13 and the clamping portion 23 are clamped to fixedly connect the cover body 20 and the shell 10.

[0132] In this way, the cover body 20 and the shell 10 are fixedly connected through the clamping of the clamping structure 13 and the clamping portion 23, so as to ensure the stable connection of the cover body 20 and the shell 10, and the assembly operation is relatively convenient and simple. In addition, the clamping of the clamping structure 13 and the clamping portion 23 in place can be used as a sign of confirming the completion of the connection of the cover body 20 and the shell 10, which is convenient for the operator to confirm the completion of the connection of the cover body 20 and the shell 10, and the sealing member 30 completes the sealing of the containing cavity 11.

[0133] Specifically, the clamping structure 13 can be a reverse buckle, and the clamping portion 23 can be buckled along the first direction Z. The clamping structure 13 can be arranged on the wall surface of the shell 10 away from the containing cavity 11. The clamping portion 23 can be arranged on the coaming 24 of the cover body 20, for example, the clamping portion 23 is located on the side wall surface of the coaming 24 facing the containing cavity 11, or for example, the clamping portion 23 can be arranged on the end of the coaming 24 away from the cover body 21.

[0134] As shown in Figure 9 , in the first stage, the coaming 24 is completely separated from the cover body 20, and the clamping structure 13 and the clamping portion 23 are not in contact. As shown in Figure 9 , in the second stage, the coaming 24 is partially arranged outside the shell 10, the clamping structure 13 and the clamping portion 23 are in contact, but not completely clamped. As shown in Figure 4 , in the third stage, the clamping structure 13 and the clamping portion 23 are completely clamped, and the shell 10 and the cover body 20 are completely connected.

[0135] In order to shorten the assembly stroke, the clamping structure 13 can be arranged close to the opening 12 along the first direction Z, so as to ensure that the clamping portion 23 can be quickly clamped with the clamping structure 13 after the coaming 24 is close to the opening 12.

[0136] Please refer to Figure 6In some embodiments, the housing 10 is formed with a guide groove 14 on the wall surface facing away from the accommodation cavity 11, the guide groove 14 extending along the first direction Z, and the guide groove 14 being configured to guide the relative displacement between the housing 10 and the cover 20 along the first direction Z when the wall surface of the housing 10 facing away from the accommodation cavity 11 is in contact with the cover 20.

[0137] Referring to Figure 4 In some embodiments, the cover 20 comprises a cover body 21 and a surrounding plate 24, the surrounding plate 24 being connected to the edge of the cover body 21 and surrounding the end surface of the accommodation cavity 11 forming the opening 12, and the sealing member 30 being arranged in the surrounding plate 24 and covering the opening 12.

[0138] In this way, by connecting the edge of the cover body 21 to the surrounding plate 24 and surrounding the end surface of the accommodation cavity 11 forming the opening 12, and arranging the sealing member 30 in the surrounding plate 24, the sealing member 30 is kept relatively fixed with the cover 20 before the cover 20 is connected to the housing 10, so that the sealing member 30 can be assembled with the cover 20 to the housing 10, which simplifies the installation steps and facilitates the alignment between the sealing member 30 and the opening 12.

[0139] Specifically, the surrounding plate 24 can extend downward from the edge of the cover body 21 along the first direction Z, and the surrounding plate 24 can surround the accommodation cavity 11, part of the housing 10, the sealing member 30 and the support member 40. The surrounding plate 24 can also play a certain guiding role during the assembly of the cover 20 and the housing 10.

[0140] Referring to Figure 3 and Figure 4 In some embodiments, the accommodation cavity 11 is provided with a heating assembly 50, the heating assembly 50 comprising an exhaust pipe 51 penetrating the sealing member 30, and the sealing member 30 being in sealing cooperation with the outer wall surface of the exhaust pipe 51.

[0141] In this way, by penetrating the sealing member 30 with the exhaust pipe 51 of the heating assembly 50, and by sealing cooperation between the sealing member 30 and the outer wall surface of the exhaust pipe 51, the risk of leakage of aerosol or aerosol generating substrate from the exhaust pipe 51 is reduced.

[0142] Specifically, the exhaust pipe 51 can be formed with a liquid inlet 511 communicating with the accommodation cavity 11, and the aerosol generating substrate can enter the exhaust pipe 51 from the accommodation cavity 11 through the liquid inlet 511 when the aerosol generating device 100 is in operation. The heating assembly 50 generates heat when the aerosol generating device 100 is in operation, and heats the aerosol generating substrate in the exhaust pipe 51 to generate aerosol. The liquid inlet 511 can be arranged at the end of the exhaust pipe 51 away from the sealing member 30, and the generated aerosol flows along the exhaust pipe 51 towards the sealing member 30.

[0143] It should be noted that before the shell 10 and the cover 20 are connected, the excess gas in the containing bin 11 is discharged through the exhaust hole section 31, so as to reduce the risk of the gas being extruded into the aerosol generating substrate, thereby avoiding the aerosol generating substrate from being prematurely poured into the liquid inlet 511.

[0144] Optionally, the end of the exhaust duct 51 corresponding to the opening 12 protrudes beyond the plane where the opening 12 is located in the first direction Z. In other embodiments, the end of the exhaust duct 51 corresponding to the opening 12 can also be flush with or slightly lower than the opening 12.

[0145] Optionally, the shell 10 further comprises a battery 60 and a control assembly 70, both of which are electrically connected to the heating assembly 50. The heating assembly 50 can convert electrical energy into heat energy and transfer the heat energy to the aerosol generating substrate.

[0146] Please refer to Figure 4 and Figure 9 In some embodiments, the cover 20 is formed with a suction air passage 210 that communicates the exhaust duct 51 with the external environment of the cover 20.

[0147] In this way, by forming the suction air passage 210 in the cover 20, the suction air passage 210 communicates the exhaust duct 51 with the external environment of the cover 20, so that the cover 20 has the function of a mouthpiece, fully utilizes the structural space, and saves additional assembly procedures.

[0148] Specifically, the center of the cover body 21 is hollow and forms the suction air passage 210. The aerosol generated in the exhaust duct 51 can enter the atmospheric environment or the user's respiratory system along the exhaust duct 51 and the suction air passage 210 for smoking.

[0149] Optionally, the support 40 is formed with an exhaust groove 44 that communicates with the suction air passage 210, the exhaust groove 44 communicates with the gap 33, and the gap 33 communicates with the containing bin 11 in the second stage, so that the excess gas in the containing bin 11 can be discharged outside the aerosol generating device 100 during the assembly of the cover 20 and the shell 10.

[0150] Further, the cover 20 comprises a surrounding plate 24 that surrounds a cavity 241, the support 40 and the sealing member 30 are arranged in the cavity 241, and in the second stage, the cover body 21 can be spaced apart from the support 40 in the first direction Z. The suction passage and the exhaust groove 44 both communicate with the cavity 241.

[0151] Please refer to Figure 4 and Figure 9 In some embodiments, the sealing member 30 is formed with a ventilation hole 36, a third protruding rib 363 is formed on the hole wall of the ventilation hole 36, and the exhaust duct 51 is arranged in the ventilation hole 36.

[0152] Thus, the third protrusions 363 are formed on the hole wall of the vent hole 36, the exhaust duct 51 is arranged in the vent hole 36, and the outer circumferential surface of the exhaust duct 51 can be in interference fit with the third protrusions 363, thereby ensuring good sealing effect of the exhaust duct 51 and simple assembly.

[0153] Optionally, the third protrusions 363 surround the exhaust duct 51 along the circumference of the vent hole 36, and the third protrusions 363 can be in the form of a closed annular ring or in the form of an intermittent or continuous spiral. The number of third protrusions 363 can be one, two, three or more, and two or more third protrusions 363 are arranged along the first direction Z.

[0154] Optionally, the exhaust duct 51 is arranged in the end of the sealing member 30 and accommodated in the vent hole 36, that is, the port of the exhaust duct 51 is located lower than the end surface of the vent hole 36 along the first direction Z, and the exhaust duct 51 can be in communication with the suction air passage 210 through the vent hole 36.

[0155] Optionally, the support member 40 is arranged between the sealing member 30 and the cover portion 21, and the support member 40 is formed with a suction air hole 45, which is in communication with the vent hole 36 and the suction air passage 210 along the first direction Z.

[0156] Please refer to Figure 13 The application provides a manufacturing method of an aerosol generating device 100, which comprises the following steps:

[0157] In step S10, a housing 10 is provided, the housing 10 is formed with an open container 11, and the container 11 is used to accommodate an aerosol generating substrate;

[0158] In step S20, the aerosol generating substrate is loaded into the container 11 through the opening 12;

[0159] In step S30, a cover assembly is provided, the cover assembly comprises a cover 20 and a sealing member 30 arranged on the cover 20, the cover 20 comprises a cover portion 21 and a sealing column 22, the sealing member 30 is formed with an exhaust hole section 31 and a sealing hole section 32 which are in communication with each other along a first direction Z, and the sealing column 22 extends into the exhaust hole section 31 and forms a gap 33 with the hole wall of the exhaust hole section 31;

[0160] In step S40, the cover assembly is mounted to the housing 10 along the first direction Z, and the sealing member 30 is partially extended into the container 11;

[0161] In step S50, a force is applied to the cover 20 to move the cover 20 relative to the housing 10 along the first direction Z until the sealing column 22 extends into the sealing hole section 32 and is in sealing connection with the hole wall of the sealing hole section 32.

[0162] Thus, before the force is applied to the cover 20, the sealing member 30 partially extends into the containing cavity 11, the sealing member 30 forms a gap 33 with the hole wall of the exhaust hole section 31, the gap 33 is in communication with the containing cavity 11, so that the excess gas in the containing cavity 11 can be discharged through the gap 33; after the force is applied to the cover 20, the cover 20 moves relative to the shell 10 along the first direction Z, so that the sealing column 22 extends into the sealing hole section 32 and is in sealing connection with the hole wall of the sealing hole section 32, which is simple to operate, thereby reducing the risk of liquid extrusion while ensuring good sealing. In addition, the aerosol generating substrate is loaded into the containing cavity 11 through the opening 12, which reduces the requirement for liquid injection accuracy and is beneficial to improve the liquid injection efficiency.

[0163] In step S20, the aerosol generating substrate is in liquid state and can be injected into the containing cavity 11 by a liquid injection machine or the like. After the liquid injection is completed, the liquid level of the aerosol generating substrate in the containing cavity 11 is lower than the plane where the opening 12 is located, so that a certain amount of gas exists in the containing cavity 11 before the sealing member 30 covers and seals the containing cavity 11.

[0164] In combination Figure 7 In step S20, the shell 10 and the cover 20, and the shell 10 and the sealing member 30 are all in a separated structure, which corresponds to the first stage of the assembly process of the shell 10 and the cover 20 as described above.

[0165] In combination Figure 9 In step S40, the part of the sealing member 30 extending into the containing cavity 11 is the second sealing part 35, at this time, the circumferential side of the second sealing part 35 can be in sealing and fixed connection with the cavity wall of the containing cavity 11, and the first sealing part 34 can abut against the end surface of the shell 10 of the opening 12. From step S10 to step S40, the relative position between the sealing member 30 and the cover 20 remains unchanged.

[0166] In combination Figure 4 And Figure 9 Step S50 corresponds to the second stage to the third stage as described above. In step S50, the sealing member 30 can be relatively fixed with the shell 10, and the cover 20 moves relative to the shell 10 along the first direction Z, driving the sealing column 22 to move downward in the exhaust hole section 31. Before the sealing column 22 extends downward into the sealing hole section 32, the gap 33 is in communication with the containing cavity 11 through the sealing hole section 32, so that the gas in the containing cavity 11 can be discharged to the outside of the containing cavity 11, avoiding the problem of liquid extrusion and leakage caused by the extrusion of the gas after the sealing column 22 completely seals the sealing hole section 32.

[0167] In the description of the specification, the description using the terms "one embodiment", "some embodiments", "certain embodiments", "exemplary embodiment", "example", "specific example", or "some examples" etc. means that the particular feature, structure, material or characteristic being described is included in at least one embodiment or example of the application. The illustrative appearances of the above-mentioned terms in various places in the specification are not necessarily intended to refer to the same embodiment or example. Moreover, the particular features, structures, materials or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0168] Although embodiments of the present application have been shown and described, it would be appreciated by those skilled in the art that changes, modifications, alternatives and variations to these embodiments could be made without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

Claims

1. An aerosol generating device, characterized in that, include: A shell having an open receiving chamber for containing an aerosol generation matrix; A cover body, wherein the cover body is detachably connected to the housing body; and A sealing element, which extends at least partially into the opening and is sealed to the wall of the receiving chamber, the sealing element having a through hole for engaging with the cover to expel air from the receiving chamber, the cover engaging with the through hole in a sealing fit.

2. The aerosol generating apparatus according to claim 1, characterized in that, The cover includes a cover body and a sealing post. The cover body covers the opening of the receiving compartment, and the sealing post protrudes from the cover body in a first direction, which is the direction in which the cover body points towards the receiving compartment. The through hole includes an exhaust port section and a sealing port section that are interconnected along a first direction. The sealing post passes through the exhaust port section and the sealing port section. The sealing port section is closer to the bottom wall of the receiving chamber than the exhaust port section. The sealing post forms a gap with the hole wall of the exhaust port section and is sealed to the hole wall of the sealing port section.

3. The aerosol generating apparatus according to claim 2, characterized in that, The sealing element includes a first sealing part and a second sealing part. The first sealing part abuts against the end face of the housing corresponding to the opening, and the second sealing part extends into the receiving chamber and is sealed to the wall of the receiving chamber. Before the cover is connected to the housing, the sealing post is spaced a certain distance from the sealing hole section along a first direction. The gap connects the receiving chamber to the external environment of the receiving chamber. The cover is configured to displace relative to the housing along the first direction after being subjected to an external force, so that the cover is connected to the housing and the sealing post extends into the sealing hole section and is sealed to the hole wall of the sealing hole section.

4. The aerosol generating apparatus according to claim 2, characterized in that, The aerosol generating device includes a support member disposed on the side of the sealing member away from the receiving chamber, and the support member has a limiting hole communicating with the exhaust port section. The sealing column passes through the limiting hole, the exhaust port section and the sealing port section in sequence. The diameter of the limiting hole is smaller than the diameter of the exhaust port section at the connection with the limiting hole.

5. The aerosol generating apparatus according to claim 4, characterized in that, The sealing post is sealed to the wall of the limiting hole.

6. The aerosol generating apparatus according to claim 4, characterized in that, The sealing column includes a first sealing section and a second sealing section in sequence along a first direction. The first sealing section is connected to the cover body and the radial dimension of the first sealing section is greater than the radial dimension of the second sealing section. The first sealing section extends into the limiting hole, and the second sealing section forms the gap with the hole wall of the venting hole section and seals with the sealing hole section.

7. The aerosol generating apparatus according to claim 6, characterized in that, A guide surface is formed at the connection between the first sealing section and the second sealing section, and the guide surface extends from the first sealing section toward the second sealing section.

8. The aerosol generating apparatus according to claim 4, characterized in that, The support member has an exhaust groove located at the edge of the limiting hole and communicating with the gap.

9. The aerosol generating apparatus according to claim 2, characterized in that, The diameter of the exhaust port section decreases along the first direction, and the diameter of the sealing port section is less than or equal to the minimum diameter of the exhaust port section.

10. The aerosol generating apparatus according to claim 2, characterized in that, The seal is an elastic component, configured to elastically deform when partially inserted into the receiving chamber and the cover is subjected to an external force, so that the seal and the sealing post are displaced relative to each other in a first direction.

11. The aerosol generating apparatus according to claim 2, characterized in that, There are multiple sealing posts and multiple through holes, and each sealing post corresponds to one through hole.

12. The aerosol generating apparatus according to claim 1, characterized in that, The sealing element extends into the outer peripheral surface of the receiving chamber and has a first rib; and / or, the wall of the through hole has a second rib.

13. The aerosol generating apparatus according to claim 1, characterized in that, The housing has a locking structure, and the cover has a locking part. The locking structure engages with the locking part to fix the cover to the housing.

14. The aerosol generating apparatus according to claim 2, characterized in that, The cover includes a cover body and a surrounding panel, the surrounding panel connecting the edge of the cover body and surrounding the receiving compartment to form the end face of the opening, and the sealing element being mounted inside the surrounding panel and covering the opening.

15. The aerosol generating apparatus according to claim 1, characterized in that, The receiving chamber is equipped with a heating component, which includes an exhaust pipe passing through the seal, and the seal is sealed to the outer wall of the exhaust pipe.

16. The aerosol generating apparatus according to claim 15, characterized in that, The cover has a suction duct that connects the exhaust pipe to the external environment of the cover.

17. The aerosol generating apparatus according to claim 15, characterized in that, The sealing element has a vent hole, and a third rib is formed on the wall of the vent hole. The exhaust pipe passes through the vent hole.

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