Aerosol generating apparatus and aerosol generating system

Abstract

Embodiments of the present disclosure provide an aerosol generating apparatus and an aerosol generating system, the aerosol generating apparatus comprising a housing assembly and a cover assembly. The housing assembly is provided with an accommodating cavity, and an opening in communication with the accommodating cavity, the accommodating cavity being used to accommodate an aerosol generating product. The cover assembly is disposed on the housing assembly, and the cover assembly is used to selectively open or close the opening. The cover assembly is provided with a first sub-air channel, the first sub-air channel forming at least part of an air inlet channel, and the accommodating cavity being in communication with the outside by means of the first sub-air channel. The aerosol generating apparatus provided in the embodiments of the present disclosure, can, after the cover assembly opens the opening, replace the aerosol generating product. Additionally, the first sub-air channel and the accommodating cavity are designed in a split manner, such that when the cover assembly selectively opens the opening or closes the opening, the accommodating cavity likewise switches between being connected to the outside by means of the opening and being connected to the outside by means of the first sub-air channel. Thus air intake of the aerosol generating apparatus is made more convenient.

Description

Aerosol generating device and aerosol generating system

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This disclosure is based on and claims the priority of Chinese patent application with application number 202311448040.8 and application date November 1, 2023. The entire content of the Chinese patent application is hereby incorporated into this disclosure as a reference. Technical Field

[0003] The present disclosure relates to the field of atomization technology, and in particular to an aerosol generating device and an aerosol generating system. Background Art

[0004] This section is intended to provide a background or context for the embodiments of the present disclosure. No admission is made that the description herein is prior art by virtue of its inclusion in this section.

[0005] An aerosol-generating device is an apparatus used to heat an aerosol-generating product and generate an aerosol. In related art, the aerosol-generating product must be heated inside the aerosol-generating device. To facilitate user replacement of the aerosol-generating product, the applicant designed an aerosol-generating device with a replaceable aerosol-generating product. However, this aerosol-generating device with this structure is not very convenient for air intake.

[0006] Summary of the Invention

[0007] In view of this, the embodiments of the present disclosure aim to provide an aerosol generating device and an aerosol generating system with convenient air intake.

[0008] To this end, an embodiment of the present disclosure provides an aerosol generating device, comprising:

[0009] a housing assembly having a receiving cavity and an opening communicating with the receiving cavity, wherein the receiving cavity is used to receive the aerosol-generating article;

[0010] a cover assembly, disposed on the shell assembly, the cover assembly being used to selectively open or close the opening;

[0011] The air inlet channel is provided with a first sub-air channel, the first sub-air channel constitutes at least a part of the air inlet channel, and the accommodating cavity is connected with the outside through the first sub-air channel.

[0012] In one embodiment, the first sub-air channel includes a first air inlet section and a second air inlet section that are interconnected, the cover assembly includes a body and an air outlet unit, the body is provided with a first mounting channel, at least a portion of the air outlet unit is disposed within the first mounting channel, the first air inlet section is defined between the air outlet unit and a sidewall of the first mounting channel, or the first air inlet section is formed within the air outlet unit, and the first air inlet section is communicated with the outside;

[0013] The air outlet unit is further provided with the second air inlet section and the suction air duct, and the accommodating cavity is communicated with the second air inlet section and the suction air duct respectively.

[0014] In one embodiment, the air outlet unit includes a sleeve and a suction member, the sleeve is provided with a second mounting channel and the second air inlet section, the sleeve is disposed in the first mounting channel, a portion of the suction member is disposed in the second mounting channel, and the suction member constitutes at least a portion of the suction air duct;

[0015] The first air intake section is defined between the sleeve and the side wall of the first installation channel, or the first air intake section is defined between the sleeve and the suction member.

[0016] In one embodiment, the second air intake section includes a first air intake unit extending axially along the sleeve and a second air intake unit extending radially along the sleeve, the first end of the first air intake unit is connected to the accommodating cavity, and the two ends of the second air intake unit are respectively connected to the second end of the first air intake unit and the first air intake section.

[0017] In one embodiment, the first air intake unit is formed between the side wall of the second mounting channel and the outer wall of the sleeve, the first end of the first air intake unit passes through the end surface of the sleeve close to the opening, one end of the second air intake unit is connected to the first air intake unit, and the other end passes through the outer wall of the sleeve and is connected to the first air intake section.

[0018] In one embodiment, there are multiple first air intake units, and the first air intake units are distributed at intervals along the circumference of the second installation channel.

[0019] In one embodiment, there are multiple first air intake units, and there are multiple second air intake units, which correspond one-to-one to the first air intake units.

[0020] In one embodiment, the outer side wall of the sleeve is provided with a plurality of axially extending dividing ribs, each of which abuts against the side wall of the first mounting channel to define a plurality of first air intake sections spaced apart along the circumference of the sleeve.

[0021] In one embodiment, a portion of the end surface of the sleeve near one end of the opening is protrudingly provided with an annular boss, the second air inlet section and the suction air duct are respectively located on the inner and outer sides of the annular boss, and the annular boss can be detachably abutted against the aerosol generating product accommodated in the accommodating cavity.

[0022] In one embodiment, the air outlet unit further includes a first sealing member, which is sandwiched between the suction member and a side wall of the second installation channel.

[0023] In one embodiment, the aerosol generating device includes a first elastic member, which is arranged between the air outlet unit and the main body. When the cover assembly closes the opening, the aerosol generating product arranged in the accommodating cavity squeezes the air outlet unit and drives the air outlet unit to move in a direction away from the opening, so that the first elastic member undergoes elastic deformation.

[0024] In one embodiment, the body includes a support structure and an upper cover, the support structure is provided with a first mounting hole, the upper cover is provided with a second mounting hole, the second mounting hole is connected to the first mounting hole and the two together constitute the first mounting channel;

[0025] The upper cover is disposed on an end of the support structure away from the accommodating cavity, and the first elastic member is disposed between the upper cover and the air outlet unit.

[0026] In one embodiment, the distance that the air outlet unit moves axially along the first installation channel ranges from 0.3 mm to 1 mm.

[0027] In one embodiment, the cover assembly further includes a second sealing member, at least a portion of which is sandwiched between a side wall of the first installation channel and the air outlet unit.

[0028] In one embodiment, one end of the second seal close to the opening is detachably abutted against the shell assembly, the second seal is annular, and the connection between the second air inlet section and the opening is located on the inner side of the second seal.

[0029] In one embodiment, the suction air duct includes a contraction section, a throat section, and an expansion section arranged in sequence along the flow direction of the airflow. Along the flow direction of the airflow, the flow cross-sectional area of ​​the contraction section gradually decreases, and the flow cross-sectional area of ​​the expansion section gradually increases, and the flow cross-sectional areas of the contraction section and the expansion section are not less than the flow cross-sectional area of ​​the throat section.

[0030] In one embodiment, an air supply channel is provided on the cover assembly, and two ends of the air supply channel are respectively connected to the outside and the accommodating cavity.

[0031] In one embodiment, the cover assembly includes a body and an air outlet unit, the air outlet unit is provided with the air supply channel and the suction air channel connected to the accommodating cavity, and the air supply channel is connected to one end of the suction air channel close to the accommodating cavity.

[0032] In one embodiment, the air outlet unit includes a sleeve and a suction piece, an air supply groove is formed on the inner wall of the sleeve, and the air supply channel is defined between the groove wall of the air supply groove and the suction piece.

[0033] In one embodiment, the air inlet channel further includes a second sub-air channel, and the second sub-air channel is defined between the cavity wall of the accommodating cavity and the aerosol generating product accommodated in the accommodating cavity. When the cover assembly is in a state of closing the opening, the second sub-air channel is connected to the first sub-air channel.

[0034] In one embodiment, the second sub-air channel includes a third air inlet segment and a fourth air inlet segment that are interconnected, the third air inlet segment is located on the peripheral side of the aerosol generating product accommodated in the accommodating cavity, and the fourth air inlet segment is located on the end of the aerosol generating product accommodated in the accommodating cavity away from the opening.

[0035] In one embodiment, the shell assembly includes a shell, a heating tube and a base body, the shell is provided with a accommodating space and the opening, the base body is arranged in the accommodating space and is connected to the shell, one end of the heating tube is communicated with the opening, and the other end is arranged on the base body and defines the accommodating cavity with the base body, and the cover assembly is arranged on the shell.

[0036] In one embodiment, the third air inlet section is defined between the side wall of the aerosol generating article accommodated in the accommodating cavity and the tube wall of the heating tube;

[0037] A first guide groove extending in the radial direction of the heating tube is provided on a side of the base body facing the accommodating cavity, and the fourth air inlet section is defined between the groove wall of the first guide groove and the aerosol generating product accommodated in the accommodating cavity.

[0038] In one embodiment, a guide channel connected to the accommodating cavity is provided on the base body, and the aerosol generating device also includes a driving component, at least a portion of which is movably provided in the guide channel, and the driving component is capable of driving the aerosol generating product to move out of the accommodating cavity through the opening.

[0039] In one embodiment, a second guide groove is provided at one end of the driving assembly facing the accommodating cavity, the second guide groove extends along the radial direction of the heating tube, and the second guide groove can be communicated with the first guide groove.

[0040] In one embodiment, the shell assembly further includes a third sealing member, and the third sealing member is sandwiched between the side wall of the guide channel and the driving assembly.

[0041] In one embodiment, the cover assembly is rotatably disposed on the shell assembly, and the cover assembly is configured to have an open state and a closed state. The cover assembly can switch between the closed state and the open state by flipping to selectively open or close the opening. In the open state, the accommodating chamber and the first sub-air duct are respectively connected to the outside world, and in the closed state, the accommodating chamber is connected to the outside world via the first sub-air duct.

[0042] In one embodiment, the aerosol generating device further includes a driving assembly that is drivably connected to the cover assembly, and the cover assembly switches from the closed state to the open state. The cover assembly is capable of driving the driving assembly to move, and the driving assembly moves to drive at least a portion of the aerosol generating product out of the accommodating chamber through the opening.

[0043] In one embodiment, the shell assembly includes a shell, a heating tube and a base body, the shell is provided with a accommodating space and the opening, the base body is arranged in the accommodating space and is connected to the shell, one end of the heating tube is communicated with the opening, and the other end is arranged on the base body and defines the accommodating cavity with the base body, and the cover assembly is rotatably arranged on the shell.

[0044] In one embodiment, the shell includes an outer shell and a connecting cover, the outer shell is provided with an opening, the connecting cover is arranged at the opening and defines the accommodating space with the outer shell, the opening is provided on the connecting cover, and the cover assembly is rotatably provided on the outer shell and / or the connecting cover.

[0045] On the other hand, an embodiment of the present disclosure provides an aerosol generating system, comprising an aerosol generating article and the aerosol generating device described in any of the above embodiments, wherein the aerosol generating article is arranged in the accommodating cavity, and the aerosol generating device further comprises a heating element, which is used to heat the aerosol generating article to generate an aerosol.

[0046] In the aerosol generating device of the embodiment of the present disclosure, when the user needs to replace the aerosol generating product, the user can open the opening through the cover assembly. At this time, the accommodating chamber is connected to the outside world through the opening, and the aerosol generating product in the accommodating chamber can be moved out of the accommodating chamber through the opening, thereby facilitating the user to replace the aerosol generating product with a new one. After the user has completed the replacement of the aerosol generating product, the user can close the opening through the cover assembly. The accommodating chamber is connected to the outside world through the first sub-airway. When the user inhales, the airflow from the outside enters the accommodating chamber through the first sub-airway, and carries the aerosol generated in the accommodating chamber into the user's mouth for the user to inhale. When the cover assembly selectively opens or closes the opening, the accommodating chamber also switches between being connected to the outside world through the opening and being connected to the outside world through the first sub-airway. In other words, the first sub-airway and the accommodating chamber are of a split design. In this way, the aerosol generating device can use aerosol generating products that are not wrapped in paper or aluminum foil on the outside, while making the air intake of the aerosol generating device more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] FIG1 is a schematic diagram of an aerosol generating device according to an embodiment of the present disclosure from one perspective;

[0048] FIG2 is a schematic diagram of an aerosol generating device according to an embodiment of the present disclosure from another perspective;

[0049] FIG3 is a schematic structural diagram of the aerosol generating device according to an embodiment of the present disclosure, taken along line AA in FIG2 , wherein the cover assembly is in a closed state;

[0050] Figure 4 is an enlarged schematic diagram of point C in Figure 3;

[0051] FIG5 is a schematic structural diagram of the aerosol generating device according to an embodiment of the present disclosure, taken along line BB in FIG2 , wherein the cover assembly is in a closed state;

[0052] FIG6 is an enlarged schematic diagram of point D in FIG5;

[0053] FIG7 is a schematic structural diagram of the aerosol generating device according to an embodiment of the present disclosure, taken along line BB in FIG2 , wherein the cover assembly is in an open state and the air outlet unit is not shown in the cover assembly;

[0054] FIG8 is a schematic structural diagram of a sleeve from one perspective according to an embodiment of the present disclosure;

[0055] FIG9 is a schematic structural diagram of a sleeve from another perspective according to an embodiment of the present disclosure;

[0056] FIG10 is an exploded view of the structure of a housing according to an embodiment of the present disclosure;

[0057] FIG11 is an enlarged schematic diagram of point E in FIG5 ;

[0058] FIG12 is a schematic diagram of an aerosol generating device according to another embodiment of the present disclosure from one perspective;

[0059] FIG13 is a schematic diagram of an aerosol generating device according to another embodiment of the present disclosure from another perspective;

[0060] FIG14 is a schematic structural diagram of an aerosol generating device according to another embodiment of the present disclosure, cut along line FF in FIG13 , wherein the cover assembly is in a closed state;

[0061] FIG15 is an enlarged schematic diagram of point G in FIG14 . DETAILED DESCRIPTION

[0062] It should be noted that, unless there is a conflict, the embodiments and technical features in the embodiments of the present disclosure can be combined with each other, and the detailed description in the specific implementation methods should be understood as an explanation of the purpose of the present disclosure and should not be regarded as an improper limitation on the present disclosure.

[0063] In the embodiments of the present disclosure, the orientations or positional relationships of “up”, “down”, “top”, “bottom”, “left” and “right” are based on the orientations or positional relationships shown in FIG3 , FIG5 and FIG7 . It should be understood that these orientation terms are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present disclosure.

[0064] An aerosol generating device is an apparatus used to atomize an aerosol generating product to produce an aerosol for the user to inhale.

[0065] In related art, when heating an aerosol-generating product, an aerosol-generating device heats the paper surrounding the aerosol-generating product. If the heating temperature is too high, the overheated paper will produce an unpleasant odor (paper odor), affecting the user's puffing experience. However, if the aerosol-generating product is not wrapped in paper or aluminum foil, the aerosol-generating product is likely to stick to the inside of the aerosol-generating device after heating, thus affecting the user's ability to replace the aerosol-generating product.

[0066] In view of the above-mentioned problems, the embodiments of the present disclosure provide, on one hand, an aerosol-generating device, comprising a shell assembly and a lid assembly, wherein the shell assembly is provided with a accommodating chamber and an opening communicating with the accommodating chamber, the accommodating chamber being used to accommodate an aerosol-generating product; a lid assembly disposed on the shell assembly, the lid assembly being configured to selectively open or close the opening; and a first sub-airway disposed on the lid assembly, the first sub-airway constituting at least a portion of an air inlet passage, the accommodating chamber communicating with the outside world via the first sub-airway. In the aerosol-generating device of the embodiments of the present disclosure, when a user needs to replace the aerosol-generating product, the lid assembly can open the opening. At this point, the accommodating chamber is communicated with the outside world via the opening, and the aerosol-generating product in the accommodating chamber can be removed from the accommodating chamber via the opening, thereby facilitating the user's replacement of the aerosol-generating product. After the user has completed replacing the aerosol-generating product, the lid assembly can close the opening. The accommodating chamber is communicated with the outside world via the first sub-airway. When the user inhales, air from the outside world enters the accommodating chamber via the first sub-airway, carrying the aerosol generated in the accommodating chamber into the user's mouth for inhalation. When the lid assembly selectively opens or closes the opening, the accommodating chamber switches between being connected to the outside world through the opening and being connected to the outside world through the first sub-airway. In other words, the first sub-airway and the accommodating chamber are designed as separate parts. This allows the aerosol generating device to be used with aerosol-generating articles that are not wrapped in paper or aluminum foil, while also making air intake more convenient.

[0067] The present disclosure will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0068] 1 , the aerosol generating device 100 includes a housing assembly 10. The housing assembly 10 can be understood as the main body of the aerosol generating device 100. The aerosol generating article 200 can be disposed in the housing assembly 10 and atomized in the housing assembly 10 to generate an aerosol.

[0069] 1 to 4 , the housing assembly 10 is provided with a receiving cavity 10a and an opening 112a communicating with the receiving cavity 10a. The receiving cavity 10a is used to receive the aerosol generating article 200. That is, the aerosol generating article 200 is atomized in the receiving cavity 10a.

[0070] It should be noted that, in the embodiment of the present disclosure, the aerosol generating article 200 is in solid form.

[0071] The structure of the aerosol-generating article 200 is not limited. The aerosol-generating article 200 may include a functional segment and an aerosol-generating substrate, wherein the functional segment is disposed at one end of the aerosol-generating substrate along a length direction.

[0072] It should be noted that the aerosol-generating article 200 relies on the aerosol-generating substrate to generate aerosol, and the functional section does not generate aerosol.

[0073] The functional section may include a cooling section for cooling the aerosol to reduce its temperature and alleviate the "burning mouth" phenomenon when the user inhales the aerosol. The functional section may also include a support section, which has a certain structural strength and serves to limit the axial position of the aerosol-generating matrix. The functional section may also include a filtering section for filtering the aerosol.

[0074] The aerosol-generating article 200 may further include an outer wrapping layer that wraps around the functional segment and the outer periphery of the aerosol-generating substrate. Alternatively, the aerosol-generating article 200 may be devoid of an outer wrapping layer. Specifically, in the embodiments of the present disclosure, an aerosol-generating article 200 without an outer wrapping layer is used as an example.

[0075] The material of the aerosol-generating substrate is not limited. For example, the aerosol-generating substrate includes, but is not limited to, medicines, nicotine-containing materials, or nicotine-free materials.

[0076] In one example, the aerosol-generating substrate is provided with macroscopic internal airflow channels. The aerosol-generating substrate can be manufactured by extrusion, die-casting, or the like, and the internal airflow channels can be directly formed by extrusion, die-casting, or the like. Of course, the aerosol-generating substrate can also have microscopic vents, which is not a limitation here.

[0077] The shape of the aerosol-generating article 200 is not limited. For example, the cross-section of the aerosol-generating article 200 on a plane perpendicular to its axial direction can be one of circular, polygonal, elliptical, and racetrack-shaped.

[0078] Among them, the runway shape refers to a shape similar to an athletic track, which is composed of two semicircles and two parallel straight sides alternately connected.

[0079] It should be noted that the maximum outer contour dimension of the cross section may be between 6 mm and 7.3 mm, for example, 6 mm, 6.5 mm, 7 mm, 7.3 mm, etc.

[0080] The length of the aerosol-generating article 200 is not limited. For example, it can be between 8 mm and 15 mm, such as 8 mm, 10 mm, 12 mm, 15 mm, etc.

[0081] The shape and size of the accommodating chamber 10a are not limited. For example, the size of the accommodating chamber 10a is designed to be slightly larger than the size of the aerosol-generating article 200. This allows a gap to be formed between the aerosol-generating article 200 and the wall of the accommodating chamber 10a. Airflow reaching the opening 112a can pass through this gap to the side of the accommodating chamber 10a facing away from the opening 112a, and then flow through the interior of the aerosol-generating article 200, thereby carrying away the aerosol generated by the atomization of the aerosol-generating article 200 for inhalation by the user.

[0082] The aerosol-generating article 200 further includes a cover assembly 20 , which is disposed on the shell assembly 10 for selectively opening or closing the opening 112 a .

[0083] When the user needs to replace the aerosol generating product 200, the user can open the opening 112a through the cover assembly 20. At this time, the accommodating chamber 10a is connected to the outside through the opening 112a, and the aerosol generating product 200 can be moved out of the accommodating chamber 10a through the opening 112a. This makes it convenient for the user to replace the aerosol generating product 200.

[0084] The cover assembly 20 is provided with a first sub-air passage 22 a , which constitutes at least a portion of the air intake passage.

[0085] After the user completes the replacement of the aerosol generating product 200, the opening 112a can be closed by the cover assembly 20. The accommodating chamber 10a is connected to the outside world through the first sub-air channel 22a. When the user inhales, the external airflow enters the accommodating chamber 10a through the first sub-air channel 22a, and carries the aerosol generated in the accommodating chamber 10a into the user's mouth for the user to inhale.

[0086] The aerosol generating device of the disclosed embodiment selectively opens or closes the opening 112a via the cover assembly 20, thereby facilitating user replacement of the aerosol generating article 200. Furthermore, a first sub-airway 22a is provided on the cover assembly 20. When the cover assembly 20 selectively opens or closes the opening 112a, the accommodating chamber 10a switches between being connected to the outside world via the opening 112a and being connected to the outside world via the first sub-airway 22a. In other words, the first sub-airway 22a and the accommodating chamber 10a are designed as separate parts. This allows the aerosol generating device 100 to accommodate aerosol generating articles 200 that are not wrapped in paper or aluminum foil, and also facilitates air intake during use.

[0087] The lid assembly 20 selectively opens or closes the opening 112a in any manner. For example, referring to Figures 1, 2, and 7, the lid assembly 20 is rotatably mounted on the housing assembly 10. That is, a user can manipulate the lid assembly 20 to rotate it relative to the housing assembly 10.

[0088] The cover assembly 20 is configured to have an open state and a closed state. The cover assembly 20 can switch between the closed state and the open state by flipping to selectively open or close the opening 112a. In the open state, the accommodating chamber 10a and the first sub-air channel 22a are respectively connected to the outside world. In the closed state, the accommodating chamber 10a is connected to the outside world through the first sub-air channel 22a.

[0089] The first side of the cover assembly 20 is rotatably connected to the first side of the shell assembly 10. The second side of the cover assembly 20 rotates around the first side of the cover assembly 20, which is flipped.

[0090] It should be noted that, in the embodiments of the present disclosure, unless otherwise specified, the first side and the second side of any component are regarded as two opposite sides of the component.

[0091] It is understood that rotation has two directions: clockwise and counterclockwise. Referring to Figures 1, 2, 5, and 7, in the disclosed embodiment, the side on which the lid assembly 20 and the housing assembly 10 are rotatably connected is referred to as the right side. That is, the first side of the lid assembly 20 is the right side, and the second side of the lid assembly 20 is the left side. Turning the lid assembly 20 clockwise switches it from a closed state to an open state, while turning the lid assembly 20 counterclockwise switches it from an open state to a closed state.

[0092] It can be understood that the cover assembly 20 reaches the open state when it is flipped clockwise to the extreme position, and reaches the closed state when it is flipped counterclockwise to the extreme position.

[0093] It should be noted that the extreme position of flipping in a certain direction refers to a position where the device cannot be flipped further in that direction.

[0094] When the lid assembly 20 is closed, it covers the opening 112a (equivalent to closing the opening 112a). The lid assembly 20 can restrain the aerosol-generating product 200 within the accommodating chamber 10a. Thus, the aerosol-generating product 200 can be restrained within the accommodating chamber 10a and atomized to produce an aerosol. At the same time, the accommodating chamber 10a is connected to the outside world via the first sub-airway 22a, and air from the outside world can enter the accommodating chamber 10a through the first sub-airway 22a.

[0095] When the lid assembly 20 is in the open state, the second side of the lid assembly 20 is separated from the second side of the shell assembly 10, and the accommodating chamber 10a and the first sub-airway 22a are respectively connected to the outside world. That is, the accommodating chamber 10a can be exposed to the outside world through the opening 112a, and at least a portion of the aerosol-generating article 200 in the accommodating chamber 10a can be removed from the accommodating chamber 10a through the opening 112a. The user can remove the used aerosol-generating article 200 from the accommodating chamber 10a and simultaneously place a new aerosol-generating article 200 into the accommodating chamber 10a through the opening 112a, thereby conveniently completing the replacement of the aerosol-generating article 200. Therefore, the aerosol-generating device 100 with this structure can use aerosol-generating articles 200 that are not wrapped in paper or aluminum foil. During the user's inhalation process, no odor (paper odor) is generated, and the user experience is improved.

[0096] In one embodiment, please refer to Figures 3 to 6, the first sub-air duct 22a includes a first air inlet section 22b and a second air inlet section 2221b that are interconnected, and the cover assembly 20 includes a main body 221 and an air outlet unit 222, the main body 221 is provided with a first installation channel 221a, and at least a portion of the air outlet unit 222 is provided in the first installation channel 221a.

[0097] The first air inlet section 22b may be formed in any manner. For example, referring to FIG3 and FIG4 , in some embodiments, the first air inlet section 22b is defined between the air outlet unit 222 and the sidewall of the first installation channel 221a.

[0098] The first air inlet section 22b is defined by the body 221 and the air outlet unit 222. Specifically, at least a portion of the first air inlet section 22b is defined between the peripheral wall of the first installation channel 221a and the peripheral wall of the air outlet unit 222, so that the first air inlet section 22b is more convenient to form.

[0099] For another example, referring to FIG. 14 and FIG. 15 , in some other embodiments, the interior of the air outlet unit 222 forms a first air inlet section 22 b.

[0100] The first air inlet section 22b is communicated with the outside. The air outlet unit 222 is further provided with a second air inlet section 2221b and a suction air duct 222a. The accommodating cavity 10a is communicated with the second air inlet section 2221b and the suction air duct 222a respectively.

[0101] The material of the body 221 is not limited. For example, it can be a high-temperature resistant plastic such as PPSU, PEEK or PPA.

[0102] The inhalation passage 222a is used for the user to inhale the aerosol. When the user inhales the aerosol, the external airflow passes through the first air inlet section 22b and the second air inlet section 2221b in sequence and flows into the accommodating chamber 10a. The airflow carries the aerosol generated in the accommodating chamber 10a into the inhalation passage 222a, and then flows into the user's mouth.

[0103] The specific shape of the first installation channel 221a is not limited. It only needs to meet the installation requirements of the air outlet unit 222. For example, the shape of the first installation channel 221a is compatible with the outer contour of the air outlet unit 222.

[0104] The second air inlet section 2221b is provided on the air outlet unit 222. That is, along the orthographic projection in the axial direction of the first installation channel 221a, the second air inlet section 2221b can be located inside the first air inlet section 22b, that is, the first sub-air channel 22a can include a certain bending portion, thereby reducing the risk of external impurities falling directly into the accommodating chamber 10a through the first sub-air channel 22a.

[0105] The air outlet unit 222 can be used as a nozzle. The air outlet unit 222 is provided on the aerosol generating device 100 to facilitate the user to inhale the aerosol.

[0106] In some embodiments, the air outlet unit may have a filtering function, that is, the aerosol generating device 100 has a filtering function. In this way, there is no need to add a filtering section to the aerosol generating product 200. Compared with traditional aerosol generating products 200, the aerosol generating product 200 without paper or aluminum foil wrapping on the outside does not need to design structures such as a roll paper, a support section, a cooling section and a filtering section, which is beneficial to reducing the cost of the aerosol generating product 200 and reducing the packaging volume of the aerosol generating product 200.

[0107] The specific shape of the suction duct 222a is not limited. For example, referring to Figures 3 and 5 , the suction duct 222a includes a contraction section, a throat section, and an expansion section, sequentially arranged along the flow direction of the airflow. Along the flow direction of the airflow, the cross-sectional area of ​​the contraction section gradually decreases, while the cross-sectional area of ​​the expansion section gradually increases. The cross-sectional areas of both the contraction section and the expansion section are no less than the cross-sectional area of ​​the throat section.

[0108] In this embodiment, the suction air duct 222a is designed as a venturi tube as a whole. The flow rate of the airflow carrying the aerosol is increased when flowing through the suction air duct 222a of this structure, thereby improving the heat exchange efficiency between the aerosol and the inner wall of the suction air duct 222a and reducing the temperature of the aerosol.

[0109] The specific type of the air outlet unit 222 is not limited. In some embodiments, it can be a part of an integrated design.

[0110] In other embodiments, please refer to Figures 3 to 6, the air outlet unit 222 includes a sleeve 2221 and a suction piece 2222, the sleeve 2221 is provided with a second installation channel 2221a and a second air inlet section 2221b, part of the suction piece 2222 is provided in the second installation channel 2221a, and the suction piece 2222 constitutes at least part of the suction air duct 222a.

[0111] The suction piece 2222 may be a filter, that is, the suction piece 2222 has a filtering function.

[0112] The material of the suction piece 2222 is not limited, and can be, for example, high temperature resistant plastic PEEK.

[0113] The suction piece 2222 is a component that is in direct contact with the user's oral cavity, and the aerosol enters the user's oral cavity through the suction piece 2222 .

[0114] It is understandable that the suction piece 2222 and the sleeve 2221 are two parts. That is, the air outlet unit 222 is composed of at least two parts. The suction piece 2222 can be replaced after being used for a period of time, which is beneficial to the health of the user.

[0115] The suction piece 2222 does not occupy all the space of the second installation channel 2221a. That is, there is space at one end of the second installation channel 2221a close to the opening 112a along its axial direction. The aerosol flows into this space through the interior of the aerosol generating article 200 and enters the suction piece 2222 through this space for inhalation by the user.

[0116] The first air inlet section 22b can be formed in a variety of ways. For example, referring to Figures 3 to 6 , the sleeve 2221 is disposed in the first installation channel 221a and defines the first air inlet section 22b between the sleeve and the sidewall of the first installation channel 221a.

[0117] The manner in which the first air inlet end 22b is defined between the sleeve 2221 and the sidewall of the first mounting channel 221a is not limited. For example, referring to Figures 8 and 9 , the outer sidewall of the sleeve 2221 is provided with a plurality of axially extending dividing ribs 2221e. Each dividing rib 2221e abuts against the sidewall of the first mounting channel 221a to define a plurality of first air inlet sections 22b spaced apart circumferentially around the sleeve 2221.

[0118] It should be noted that, in the embodiments of the present disclosure, a plurality refers to any number of two or more.

[0119] The partition ribs 2221e can reduce the risk of the sleeve 2221 shaking in the first installation channel 221a. At the same time, a gap can be formed between the area between any two adjacent partition ribs 2221e and the side wall of the first installation channel 221a, thereby facilitating the molding of the first air intake section 22b.

[0120] There is no limitation on the specific number of the separation ribs 2221e, and the number can be set according to the number of the second air intake sections 2221b.

[0121] For another example, referring to Figures 14 and 15 , a first air inlet section 22b is defined between the sleeve 2221 and the suction member 2222. That is, the first air inlet section 22b is formed inside the air outlet unit 222. In this embodiment, when the air outlet unit 222 is further provided with an air supply channel 222b, the air supply channel 222b is also defined between the sleeve 2221 and the suction member 2222. That is, the air supply channel 222b and the first air inlet section 22b are stacked along the axial direction of the air outlet unit 222. After the external airflow enters the first air inlet section 22b, it is split into two at one end of the first air inlet section 22b near the second air inlet section 2221b. One portion of the airflow flows through the air supply channel 222b to the suction channel 222a, and the other portion of the airflow flows into the second air inlet section 2221b.

[0122] It should be noted that the air supply channel 222b can increase the air flow rate in the suction airway 222a, so that the amount of aerosol inhaled by the user can be increased. At the same time, the air flow rate in the suction airway 222a is greater than the air flow rate in the accommodating chamber 10a, so that the flow rate of the airflow in the suction airway 222a will also be higher than the flow rate of the airflow in the accommodating chamber 10a. Using the "Bernoulli principle", it can be known that the air pressure in the suction airway 222a is lower than the air pressure in the accommodating chamber 10a. By utilizing this pressure difference, the extraction of aerosol in the accommodating chamber 10a can be further enhanced.

[0123] In one embodiment, referring to Figures 3, 4, 8 and 9, the second air intake section 2221b includes a first air intake unit 2221c extending axially along the sleeve 2221 and a second air intake unit 2221d extending radially along the sleeve 2221, the first end of the first air intake unit 2221c is connected to the accommodating cavity 10a, and the two ends of the second air intake unit 2221d are respectively connected to the second end of the first air intake unit 2221c and the first air intake section 22b.

[0124] That is, the airflow direction in the second air inlet section 2221b is formed into an "L" shape.

[0125] During use of the aerosol generating device 100 , airflow passes through the first air inlet section 22b , the second air inlet unit 2221d and the first air inlet unit 2221c in sequence and then enters the accommodating chamber 10a .

[0126] The first air inlet unit 2221c extends along the axial direction of the sleeve 2221, and the second air inlet unit 2221d extends along the radial direction of the sleeve 2221, so that the overall structure of the second air inlet section 2221b is relatively simple and easy to open.

[0127] In one embodiment, please refer to Figures 8 and 9, a first air intake unit 2221c is formed between the side wall of the second mounting channel 2221a and the outer wall of the sleeve 2221, and the first end of the first air intake unit 2221c passes through the end surface of the sleeve 2221 close to the opening 112a, and one end of the second air intake unit 2221d is connected to the first air intake unit 2221c, and the other end passes through the outer wall of the sleeve 2221 and is connected to the first air intake section 22b.

[0128] The specific shape of the first air inlet unit 2221c can be understood as a blind hole. When the cover assembly 20 is in the closed state, the opening of the blind hole-shaped first air inlet unit 2221c faces the opening 112a.

[0129] The specific shape of the second air intake unit 2221d can be understood as a through hole. The second air intake unit 2221d with this structure can be used to connect the first air intake unit 2221c and the first air intake section 22b.

[0130] It should be noted that the number of the first air inlet units 2221c is not limited. For example, referring to Figures 8 and 9, there are multiple first air inlet units 2221c, and the first air inlet units 2221c are distributed at intervals along the circumference of the second installation channel 2221a.

[0131] Properly increasing the number of the first air inlet units 2221c can increase the air intake volume of the aerosol generating device 100, thereby carrying more aerosol out of the accommodating chamber 10a, and the aerosol in the accommodating chamber 10a can be inhaled in a timely manner.

[0132] It is understood that when there are multiple first air inlet units 2221c, there are also multiple second air inlet units 2221d, and they correspond one-to-one with the first air inlet units 2221c. In this way, each first air inlet unit 2221c can be connected to the first air inlet section 22b through one second air inlet unit 2221d.

[0133] In one embodiment, please refer to Figures 3, 4 and 9, a portion of the end surface of the sleeve 2221 near the opening 112a is protrudingly provided with an annular boss 2221f, the second air inlet section 2221b and the suction air duct 222a are respectively located on the inner and outer sides of the annular boss 2221f, and the annular boss 2221f can be detachably abutted against the aerosol generating product 200 accommodated in the accommodating chamber 10a.

[0134] It should be noted that the annular boss 2221f is detachably abutted against the aerosol generating product 200, which means that when the cover assembly 20 is in the closed state, the annular boss 2221f abuts against the aerosol generating product 200; when the cover assembly 20 is in the open state, the annular boss 2221f is separated from the aerosol generating product 200.

[0135] It can be understood that when the user inhales the aerosol, the cover assembly 20 is in a closed state. At this time, the annular boss 2221f can squeeze the end face of the aerosol generating product 200, thereby forming a certain positioning effect on the aerosol generating product 200. At the same time, it can also improve the sealing effect between the end face of the sleeve 2221 and the end face of the aerosol generating product 200, and reduce the risk of the airflow reaching the opening 112a through the second air inlet section 2221b directly returning to the suction airway 222a from the gap between the sleeve 2221 and the aerosol generating product 200, so that the airflow reaching the opening 112a through the second air inlet section 2221b can enter the accommodating cavity 10a more, thereby entering the interior of the aerosol generating product 200 and bringing out the aerosol.

[0136] In one embodiment, referring to FIG. 3 and FIG. 4 , the air outlet unit 222 further includes a first sealing member 2223 . The first sealing member 2223 is sandwiched between the suction member 2222 and the side wall of the second installation channel 2221 a .

[0137] The material of the first sealing member 2223 is not limited, and can be, for example, silicone rubber.

[0138] The first sealing member 2223 is used to limit the amount of air entering the suction airway 222a through the gap between the suction member 2222 and the peripheral wall of the second installation channel 2221a. At the same time, it can also provide damping when the suction member 2222 is inserted into the second installation channel 2221a, thereby reducing the risk of the suction member 2222 falling out of the second installation channel 2221a.

[0139] In one embodiment, referring to Figures 14 and 15, the aerosol generating device 100 includes a first elastic member 40, which is disposed between the air outlet unit 222 and the body 221. When the cover assembly 20 closes the opening 112a, the aerosol generating product 200 disposed in the accommodating cavity 10a squeezes the air outlet unit 222 and drives the air outlet unit 222 to move in a direction away from the opening 112a, so that the first elastic member 40 undergoes elastic deformation.

[0140] The type of the first elastic member 40 is not limited, and can be, for example, a compression spring, a tension spring, etc.

[0141] After the first elastic member 40 is elastically deformed, it can exert a certain elastic force on the air outlet unit 222 along the first installation channel 221a toward the side close to the opening 112a. In this way, when the cover assembly 20 closes the opening 112a, the air outlet unit 222 can continue to abut against the end surface of the aerosol generating product 200.

[0142] Specifically, referring to Figures 14 and 15, the air outlet unit 222 includes a suction piece 2222 and a sleeve 2221. A portion of the end surface of the sleeve 2221 close to the opening 112a is protrudingly provided with an annular boss 2221f. The second air inlet section 2221b and the suction air channel 222a are respectively located on the inner and outer sides of the annular boss 2221f. The first elastic piece 40 provides elastic force to make the annular boss 2221f abut against the end surface of the aerosol generating product 200.

[0143] It is understandable that due to the error in the size of the aerosol generating product 200 and the shrinkage of the aerosol generating product 200 due to heat during the inhalation process, the single annular boss 2221f cannot ensure that the airflow does not return to the inhalation airway 222a from the gap between the aerosol generating product 200 and the sleeve 2221. By setting the first elastic member 40, the sleeve 2221 can move toward the side close to the aerosol generating product 200, thereby pressing the aerosol generating product 200.

[0144] In one embodiment, referring to Figures 12 to 15, the main body 221 includes a support structure 2211 and an upper cover 2212, the support structure 2211 is provided with a first mounting hole 2211a, and the upper cover 2212 is provided with a second mounting hole 2212a, the second mounting hole 2212a is connected to the first mounting hole 2211a and the two together constitute a first mounting channel 221a.

[0145] The manner in which the first mounting hole 2211a and the second mounting hole 2212a are connected is not limited. For example, referring to Figure 15, a portion of the second mounting hole 2212a is located within the first mounting hole 2211a. In other words, the first mounting channel 221a presents a structure formed by the superposition of an inner space and an outer space. In this embodiment, when the air outlet unit 222 includes a sleeve 2221 and a suction piece 2222, the sleeve 2221 is located within the first mounting hole 2211a, and a portion of the sleeve 2221 is located in the area between the inner side wall of the first mounting hole 2211a and the outer side wall of the second mounting hole 2212a. The second mounting hole 2212a is coaxially connected to the second mounting channel 2221a of the sleeve 2221, and the suction piece 2222 is arranged within the second mounting channel 2221a after passing through the second mounting hole 2212a.

[0146] The upper cover 2212 is disposed on an end of the support structure 2211 away from the accommodating cavity 10 a , and the first elastic member 40 is disposed between the upper cover 2212 and the air outlet unit 222 .

[0147] In this way, when the cover assembly 20 is in the state of closing the opening 112a, the aerosol generating product 200 squeezes the air outlet unit 222. When the air outlet unit 222 moves toward the end away from the opening 112a, the upper cover 2212 will not move, so that the first elastic member 40 arranged between the upper cover 2212 and the air outlet unit 222 can produce elastic deformation.

[0148] Specifically, when the air outlet unit 222 includes the sleeve 2221 and the suction member 2222 , the first elastic member 40 is disposed between the sleeve 2221 and the upper cover 2212 .

[0149] In one embodiment, referring to FIG. 14 and FIG. 15 , the distance that the air outlet unit 222 moves along the axial direction of the first installation channel 221 a ranges from 0.3 mm to 1 mm.

[0150] For example, it may be 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1 mm, etc.

[0151] That is, the minimum distance that the air outlet unit 222 moves along the axial direction of the first installation channel 221 a is 0.3 mm. In this way, the air outlet unit 222 can compress the aerosol generating article 200 along its axial direction.

[0152] It is understandable that the processing error of the aerosol generating product 200 will not be too large. At the same time, the amount of heat shrinkage during the inhalation process is relatively small. The maximum axial movement distance of the air outlet unit 222 along the first mounting channel 221a is set to 1 mm. In the process of switching the cover assembly 20 to the closed opening 112a state, the air outlet unit 222 does not need to move a large distance to compress the aerosol generating product 200. In this way, the user's operation is more labor-saving, and the first elastic member 40 does not need to generate too large elastic deformation. The first elastic member 40 has better recoverability, which improves the durability of the first elastic member 40.

[0153] In one embodiment, referring to FIG. 3 to FIG. 7 , the cover assembly 20 further includes a second sealing member 25 . At least a portion of the second sealing member 25 is sandwiched between the sidewall of the first installation channel 221 a and the air outlet unit 222 .

[0154] In this embodiment, the connection point between the second air inlet section 2221 b and the first air inlet section 22 b is located on the side of the second sealing member 25 facing away from the outlet 112 a .

[0155] The material of the second sealing member 25 is not limited, and can be, for example, high-temperature resistant silicone rubber.

[0156] Specifically, the second sealing member 25 is sandwiched between the sidewall of the sleeve 2221 of the air outlet unit 222 and the sidewall of the first installation channel 221a. This strengthens the sealing effect between the sidewall of the sleeve 2221 and the sidewall of the first installation channel 221a, reduces the possibility of airflow overflow, and allows the airflow entering the first air inlet section 22b to flow into the second air inlet section 2221b as much as possible.

[0157] In one embodiment, referring to FIG. 5 to FIG. 7 , one end of the second sealing member 25 near the opening 112 a is detachably abutted against the housing assembly 10 . The second sealing member 25 is annular, and the connection between the second air inlet section 2221 b and the opening 112 a is located inside the second sealing member 25 .

[0158] Specifically, when the cover assembly 20 is in the closed state, one end of the second sealing member 25 close to the opening 112 a abuts against the shell assembly 10 . When the cover assembly 20 is in the open state, the second sealing member 25 is separated from the shell assembly 10 .

[0159] When the user inhales the aerosol, the cover assembly 20 is in a closed state. At this time, the end of the second seal 25 close to the opening 112a abuts against the shell assembly 10. The second seal 25 strengthens the sealing effect between the cover assembly 20 and the shell assembly 10, so that the airflow of the second air inlet section 2221b can enter the accommodating cavity 10a as much as possible, reducing the possibility of the airflow flowing out through the gap between the cover assembly 20 and the shell assembly 10.

[0160] The second sealing member 25 can be positioned in any manner. For example, referring to Figures 3 to 6 , when the air outlet unit 222 includes a sleeve 2221, a portion of the second sealing member 25 is sandwiched between the sidewalls of the first mounting channel 221a and the sleeve 2221, while another portion extends beyond the peripheral wall of the sleeve 2221, proximal to the end of the opening 112a. When the lid assembly 20 is closed, this extended portion abuts against the shell assembly 10, effectively connecting the second air inlet section 2221b to the accommodating chamber 10a via the area enclosed by this extended portion.

[0161] The second sealing member 25 is provided in this manner, and the shell assembly 10 can continue to use the original design. Thus, while being able to achieve that the end of the second sealing member 25 close to the opening 112a can abut against the shell assembly 10, there is no need to change the structure of the shell assembly 10, thereby reducing production costs. At the same time, the originally designed cover assembly 20 can be used directly, which also improves the production efficiency of the aerosol generating device 100.

[0162] In one embodiment, referring to Figures 3 to 6, the air inlet channel further includes a second sub-air channel 100a, and the second sub-air channel 100a is defined between the cavity wall of the accommodating cavity 10a and the aerosol generating product 200 accommodated in the accommodating cavity 10a. When the cover assembly 20 is in a state of closing the opening 112a, the second sub-air channel 100a is connected to the first sub-air channel 22a.

[0163] The cavity wall of the accommodating cavity 10 a may be understood as a wall of the accommodating cavity 10 a along any direction.

[0164] The second sub-air channel 100a can be understood as a gap formed between the aerosol generating article 200 disposed in the accommodating chamber 10a and the cavity wall of the accommodating chamber 10a.

[0165] It is understandable that when the user inhales the aerosol, the cover assembly 20 is in a closed state, and the external airflow enters the second sub-airway 100a through the first sub-airway 22a, and then enters the interior of the aerosol generating article 200 to carry away the aerosol.

[0166] In one embodiment, referring to Figures 5 and 6, the second sub-air duct 100a includes a third air inlet segment 100b and a fourth air inlet segment 100c that are interconnected. The third air inlet segment 100b is located on the peripheral side of the aerosol generating product 200 accommodated in the accommodating cavity 10a, and the fourth air inlet segment 100c is located at the end of the aerosol generating product 200 accommodated in the accommodating cavity 10a away from the opening 112a.

[0167] In this embodiment, when the user inhales the aerosol, the external airflow can enter the fourth air inlet section 100c through the first sub-airway 22a and the third air inlet section 100b. The airflow entering the fourth air inlet section 100c enters the interior of the aerosol generating product 200 from the end face of the aerosol generating product 200 away from the opening 112a, and then flows to the side close to the opening 112a. In this way, the airflow path inside the aerosol generating product 200 is larger, so that as much aerosol as possible inside the aerosol generating product 200 can be extracted.

[0168] In one embodiment, referring to Figures 3 to 7, the shell assembly 10 includes a shell 11, a heat pipe 12 and a base 13. The shell 11 is provided with a receiving space 11a and an opening 112a. The base 13 is provided in the receiving space 11a and connected to the shell 11. One end of the heat pipe 12 is communicated with the opening 112a, and the other end is provided on the base 13 and defines a receiving cavity 10a with the base 13. The cover assembly 20 is provided on the shell 11.

[0169] At least a portion of the housing 11 may serve as the exterior appearance of the aerosol generating device 100 , and the accommodating space 11 a may facilitate the placement of the base 13 and the heating tube 12 .

[0170] The material of the heating tube 12 is not limited. For example, it can be stainless steel or quartz. The heating tube 12 is used to heat the aerosol-generating article 200 and generate aerosol. In other words, the aerosol-generating article 200 of the present embodiment is heated circumferentially.

[0171] The heating technology of the heating tube 12 is not limited. For example, it can be electromagnetic induction heating or resistance film heating.

[0172] There is no limitation on the manner in which the cover assembly 20 is disposed on the housing assembly 10. For example, the cover assembly 20 is rotatably disposed on the housing assembly 10. In this way, the cover assembly 20 can be flipped to open or close the opening 112a.

[0173] In one embodiment, referring to Figures 5 and 6, a third air inlet section 100b is defined between the side wall of the aerosol-generating article 200 accommodated in the accommodating chamber 10a and the tube wall of the heating tube 12; a first guide groove 13b extending in the radial direction of the heating tube 12 is provided on the side of the base 13 facing the accommodating chamber 10a, and a fourth air inlet section 100c is defined between the groove wall of the first guide groove 13b and the aerosol-generating article 200 accommodated in the accommodating chamber 10a.

[0174] It is understandable that after the aerosol generating product 200 is set in the accommodating chamber 10a, its end away from the opening 112a needs to be supported on the wall surface of the base 13 facing the opening 112a. The first guide groove 13b can facilitate the formation of the fourth air inlet section 100c, and at the same time, will not affect the support of the aerosol generating product 200 on the base 13.

[0175] There is no restriction on the extension length of the first guide groove 13b, as long as the airflow reaching the side of the third air inlet section 100b away from the opening 112a can flow into the end surface of the aerosol generating article 200.

[0176] In one embodiment, referring to Figures 3 to 6, a guide channel 13a communicating with the accommodating chamber 10a is provided on the base 13. The aerosol generating device 100 further includes a drive assembly 30. At least a portion of the drive assembly 30 is movably disposed within the guide channel 13a. The drive assembly 30 is capable of driving the aerosol generating article 200 to move out of the accommodating chamber 10a through the opening 112a.

[0177] The drive assembly 30 can apply a certain force to the aerosol-generating article 200, thereby releasing the aerosol-generating article 200 adhered to the wall of the accommodating chamber 10a from the wall of the accommodating chamber 10a. The aerosol-generating article 200 can then be removed from the accommodating chamber 10a under the action of the drive assembly 30. Furthermore, by switching the lid assembly 20 from a closed state to an open state, at least a portion of the aerosol-generating article 200 can be removed from the accommodating chamber 10a without the need for tools, making it more convenient for the user to replace the aerosol-generating article 200.

[0178] It can be understood that, when the cover assembly 20 is switched from the closed state to the open state, the drive assembly 30 will invade the accommodating cavity 10a and occupy the space originally used to accommodate the aerosol generating product 200. Therefore, when the cover assembly 20 is switched from the open state to the closed state, the drive assembly 30 can also generate movement to withdraw from the space originally used to accommodate the aerosol generating product 200. In this way, the accommodation of the replaced aerosol generating product 200 in the accommodating cavity 10a will not be affected.

[0179] The axial direction of the guide channel 13a is parallel to the centerline of the opening 112a. When the lid assembly 20 switches from a closed state to an open state, the drive assembly 30 moves along the axial direction of the guide channel 13a toward the end closest to the opening 112a. At least a portion of the drive assembly 30 can penetrate into the accommodating chamber 10a and propel the aerosol-generating article 200 along its own axial direction through the opening 112a and out of the accommodating chamber 10a.

[0180] The guide channel 13a can provide a certain guiding function for the drive component 30, so that the direction of the force transmitted by the drive component 30 to the aerosol generating product 200 is continuously parallel to the axial direction of the aerosol generating product 200, thereby reducing the risk of the aerosol generating product 200 being scratched against the cavity wall during the process of being moved out of the accommodating cavity 10a through the opening 112a, and the risk of residual debris in the accommodating cavity 10a.

[0181] The shape of the guide channel 13a is not limited. In some embodiments, it can be cylindrical. Furthermore, a portion of the drive assembly 30 disposed within the guide channel 13a can also be cylindrically configured to match the guide channel 13a. This prevents interference between this portion of the drive assembly 30 and the surrounding wall of the guide channel 13a during reciprocating motion within the guide channel 13a, thereby improving the reliability of the drive assembly 30.

[0182] The driving assembly 30 is drivingly connected to the cover assembly 20. The cover assembly 20 can drive the driving assembly 30 to move by flipping. The driving assembly 30 drives at least part of the aerosol generating article 200 to move out of the accommodating chamber 10a through the opening 112a.

[0183] Specifically, when the cover assembly 20 switches from a closed state to an open state, it can drive the drive assembly 30 to move, and the drive assembly 30 contacts the aerosol generating product 200, thereby pushing the aerosol generating product 200 to generate a certain displacement in the accommodating cavity 10a, so as to push at least a portion of the aerosol generating product 200 out of the accommodating cavity 10a through the opening 112a.

[0184] In this embodiment, on the one hand, the drive assembly 30 can apply a certain force to the aerosol-generating article 200, thereby releasing the aerosol-generating article 200 adhered to the wall of the accommodating chamber 10a from the wall of the accommodating chamber 10a. The aerosol-generating article 200 can then be removed from the accommodating chamber 10a under the action of the drive assembly 30. On the other hand, by switching the lid assembly 20 from a closed state to an open state, at least a portion of the aerosol-generating article 200 can be removed from the accommodating chamber 10a without the need for additional tools, thereby making it more convenient for the user to replace the aerosol-generating article 200.

[0185] In one embodiment, referring to FIG. 5 and FIG. 6 , a second guide groove 30 a is provided at one end of the driving assembly 30 facing the accommodating cavity 10 a . The second guide groove 30 a extends along the radial direction of the heating tube 12 and can communicate with the first guide groove 13 b .

[0186] It will be appreciated that when the lid assembly 20 is in the closed state, the side of the drive assembly 30 facing the aerosol-generating article 200 abuts against the end surface of the aerosol-generating article 200. The second guide groove 30a can increase the path for the airflow to move in the radial direction of the aerosol-generating article 200, thereby facilitating the airflow to carry away aerosol generated near the center of the aerosol-generating article 200.

[0187] In one embodiment, referring to Figure 10, the housing 11 includes an outer shell 111 and a connecting cover 112. The outer shell 111 is provided with an opening 111a. The connecting cover 112 is provided at the opening 111a and defines a receiving space 11a with the outer shell 111. The opening 112a is provided on the connecting cover 112, and the cover assembly 20 is rotatably provided on the outer shell 111 and / or the connecting cover 112.

[0188] By connecting the cover 112 and the shell 111 , the forming of the accommodating space 11 a can be facilitated, thereby reducing the difficulty of the production process of the shell 11 and improving the production efficiency.

[0189] Furthermore, the housing 111 is the installation base of the aerosol generating device 100 , the base 13 is disposed in the accommodating space 11 a and connected to the housing 111 , and both ends of the heating tube 12 are disposed on the connecting cover 112 and the base 13 , thereby achieving fixation.

[0190] In one embodiment, referring to FIG. 3 to FIG. 5 and FIG. 11 , a gas supply channel 222 b is provided on the cover assembly 20 , and both ends of the gas supply channel 222 b are respectively communicated with the outside and the accommodating chamber 10 a .

[0191] The air supplement channel 222b can increase the amount of air entering the accommodating chamber 10a, thereby enhancing the extraction of aerosol inside the accommodating chamber 10a.

[0192] The specific location of the air supply channel 222b is not limited. For example, referring to Figures 3 to 5, the cover assembly 20 includes a body 221 and an air outlet unit 222. The air outlet unit 222 is provided with an air supply channel 222b and an air suction channel 222a that communicates with the accommodating chamber 10a. The air supply channel 222b is connected to an end of the air suction channel 222a that is adjacent to the accommodating chamber 10a.

[0193] When a user inhales an aerosol, a portion of the air flows through the first sub-airway 22a into the receiving chamber 10a, carrying the aerosol into the inhalation airway 222a. Another portion of the air flows through the supplemental airway 222b and into the end of the inhalation airway 222a near the receiving chamber 10a. As a result, the airflow at the end of the inhalation airway 222a near the receiving chamber 10a is greater than the airflow within the receiving chamber 10a, causing the flow rate within the inhalation airway 222a to be higher than that within the receiving chamber 10a. Using the Bernoulli principle, it can be seen that the air pressure within the inhalation airway 222a is lower than that within the receiving chamber 10a. This pressure difference can be used to further enhance the extraction of aerosol from the receiving chamber 10a.

[0194] The specific forming method of the air supply channel 222b is not limited. For example, referring to Figures 3, 5, 8, 9, and 11, when the air outlet unit 222 includes a sleeve 2221 and a suction member 2222, an air supply groove 2221g is formed on the inner wall of the sleeve 2221, and the air supply channel 222b is defined between the groove wall of the air supply groove 2221g and the suction member 2222.

[0195] In this embodiment, the supplementary air channel 222b is defined and formed by at least two parts, which makes it easier to form the supplementary air channel 222b.

[0196] Furthermore, an air supply channel 222b is defined between the groove wall of the air supply groove 2221g and the suction piece 2222, the suction piece 2222 is arranged in the sleeve 2221, and the side wall of the suction piece 2222 and at least a portion of the inner wall of the sleeve 2221 can form an abutment relationship, thereby facilitating the fixation of the suction piece 2222 in the sleeve 2221.

[0197] In one embodiment, referring to Figures 1, 5 and 7, the first side of the cover assembly 20 is rotatably connected to the first side of the shell assembly 10, the second side of the shell assembly 10 is provided with a closing portion 112b, and the second side of the cover assembly 20 and the closing portion 112b are detachably provided.

[0198] Specifically, when the lid assembly 20 is in the closed state, the second side of the lid assembly 20 is in contact with the closing portion 112b, and when the lid assembly 20 is in the open state, the second side of the lid assembly 20 is separated from the closing portion 112b. In the closed state, the closing portion 112b allows for a better contact between the second side of the lid assembly 20 and the second side of the shell assembly 10, thereby improving the sealing effect of the aerosol generating device 100 and reducing the risk of airflow reaching the opening 112a through the first sub-airway 22a and escaping through the gap between the lid assembly 20 and the shell assembly 10. Furthermore, the second side of the lid assembly 20 is detachable from the closing portion 112b, which does not affect the lid assembly 20 switching to the open state.

[0199] When the cover assembly 20 is in the closed state, the second side of the cover assembly 20 and the closing portion 112b are attached in any manner. In some embodiments, a fastening connection or the like may be used.

[0200] In some other embodiments, the second side of the cover assembly 20 and the closing portion 112b may simply be in contact with each other.

[0201] In some other embodiments, please continue to refer to Figures 1, 5 and 7. The cover assembly 20 includes a first clamping portion 21 and an outer cover 22. The first side of the outer cover 22 is rotatably connected to the first side of the shell assembly 10. The first clamping portion 21 is arranged on the second side of the outer cover 22. The closing portion 112b is the second clamping portion. When the cover assembly 20 is in the closed state, the first clamping portion 21 is clamped with the second clamping portion.

[0202] The specific structure of the outer cover 22 is not limited. For example, in some embodiments, the outer cover 22 includes the body 221 and the air outlet unit 222 mentioned above.

[0203] The second side of the cover assembly 20 and the closing portion 112b are connected by a snap-fit ​​connection, which has a relatively simple structure and is easy to operate, making it convenient for the cover assembly 20 to switch between the open state and the closed state.

[0204] In one embodiment, please continue to refer to Figures 1, 5 and 7. The first clamping portion 21 is a clamping buckle 23, and the second clamping portion has a clamping surface 112c. The clamping buckle 23 is rotatably connected to the second side of the outer cover 22. The clamping buckle 23 is separated from or clamped to the clamping surface 112c by rotating relative to the outer cover 22.

[0205] Specifically, when the cover assembly 20 is switched to the closed state, the buckle 23 is engaged with the engaging surface 112 c , and when the cover assembly 20 is switched to the open state, the buckle 23 is separated from the engaging surface 112 c .

[0206] In one embodiment, please continue to refer to Figures 1, 5 and 7. The cover assembly 20 also includes a second elastic member 24. The two ends of the second elastic member 24 are respectively connected to the buckle 23 and the outer cover 22. When the outer cover 22 switches from an open state to a closed state, the second elastic member 24 can apply a torque to the buckle 23 so that the buckle 23 is engaged with the engaging surface 112c.

[0207] The material of the second elastic member 24 is not limited. For example, it can be made of stainless steel or piano wire to provide elasticity so that the buckle 23 can be stably buckled on the clamping surface 112c.

[0208] The specific structure of the buckle 23 is not limited. For example, referring to Figures 1, 5, and 7, the buckle 23 includes a connecting body 231, an operating end 232, and a clamping end 233 disposed at both ends of the connecting body 231. The cover assembly 20 also includes a rotating shaft 26. The connecting body 231 is rotatably connected to the outer cover 22 via the rotating shaft 26. The operating end 232 is connected to the second elastic member 24, and the clamping end 233 is used to clamp with the clamping surface 112c.

[0209] When the cover assembly 20 is switched from the closed state to the open state, the operating end 232 can be pressed to rotate the clamping end 233 around the rotating shaft 26, thereby separating the clamping end 233 from the clamping surface 112c, and the cover assembly 20 as a whole can be flipped to the open state.

[0210] When the lid assembly 20 is switched from the open state to the closed state, the operating end 232 can be pressed, causing the engaging end 233 to rotate about the rotation axis 26. In this way, the engaging end 233 does not interfere with the second engaging portion during the switchover to the closed state. Simultaneously, when the operating end 232 is pressed, the second elastic member 24 is elastically deformed. When the operating end 232 is released, the second elastic member 24 recovers its elastic deformation and pushes the engaging end 233 to rotate about the rotation axis 26, causing the engaging end 233 to engage with the engaging surface 112c. Due to the action of the second elastic member 24, the engaging effect between the engaging end 233 and the engaging surface 112c is more stable.

[0211] Another aspect of the present disclosure provides an aerosol generating system, comprising an aerosol generating article 200 and the aerosol generating device 100 according to any one of the above embodiments.

[0212] The aerosol-generating article 200 is disposed in the accommodating cavity 10 a . The aerosol-generating device further includes a heating element, which is used to heat the aerosol-generating article 200 to generate aerosol.

[0213] The type of the heating element is not limited. For example, the heating element is the heat pipe 12 in the above embodiment.

[0214] The type of aerosol generating article 200 is not limited. For example, an aerosol generating article 200 without paper or aluminum foil wrapping may be used.

[0215] The dotted lines in FIG. 4 , FIG. 6 and FIG. 11 may indicate the flow direction of the gas.

[0216] In the description of the present disclosure, the descriptions with reference to the terms "in one embodiment", "in some embodiments", "in other embodiments", "in yet other embodiments", or "exemplary" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present disclosure. In the present disclosure, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine different embodiments or examples described in the present disclosure and features of different embodiments or examples, unless they are mutually inconsistent.

[0217] The above are merely preferred embodiments of the present disclosure and are not intended to limit the present disclosure. Those skilled in the art will readily appreciate that various modifications and variations of the present disclosure are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present disclosure are intended to be within the scope of protection of the present disclosure.

Claims

1. An aerosol generating device, comprising: a shell assembly, provided with a receiving cavity and an opening communicating with the receiving cavity, wherein the receiving cavity is used to receive the aerosol generating product; A cover assembly, disposed on the shell assembly, the cover assembly being used to selectively open or close the opening; The air inlet channel, the cover assembly is provided with a first sub-air channel, the first sub-air channel constitutes at least a part of the air inlet channel, and the accommodating cavity is connected with the outside through the first sub-air channel.

2. The aerosol generating device according to claim 1, wherein: The first sub-air channel includes a first air inlet section and a second air inlet section that are interconnected, the cover assembly includes a body and an air outlet unit, the body is provided with a first installation channel, at least part of the air outlet unit is arranged in the first installation channel, the first air inlet section is defined between the air outlet unit and the side wall of the first installation channel, or the first air inlet section is formed inside the air outlet unit, and the first air inlet section is communicated with the outside; The air outlet unit is also provided with the second air inlet section and the suction air duct, and the accommodating cavity is communicated with the second air inlet section and the suction air duct respectively.

3. The aerosol generating device according to claim 2, wherein: The air outlet unit comprises a sleeve and a suction piece, the sleeve is provided with a second mounting channel and the second air inlet section, the sleeve is arranged in the first mounting channel, a part of the suction piece is arranged in the second mounting channel, and the suction piece constitutes at least a part of the suction airway; The first air inlet section is defined between the sleeve and the side wall of the first installation channel, or the first air inlet section is defined between the sleeve and the suction member.

4. The aerosol generating device according to claim 3, wherein: The second air intake section includes a first air intake unit extending axially along the sleeve and a second air intake unit extending radially along the sleeve, the first end of the first air intake unit is connected to the accommodating cavity, and the two ends of the second air intake unit are respectively connected to the second end of the first air intake unit and the first air intake section.

5. The aerosol generating device according to claim 4, wherein: The first air intake unit is formed between the side wall of the second mounting channel and the outer wall of the sleeve, and the first end of the first air intake unit passes through the end surface of the sleeve close to the opening, one end of the second air intake unit is connected to the first air intake unit, and the other end passes through the outer wall of the sleeve and is connected to the first air inlet section.

6. The aerosol generating device according to claim 5, wherein: There are multiple first air intake units, and the first air intake units are spaced apart from each other along the circumference of the second installation channel; and / or, There are multiple first air intake units, and there are multiple second air intake units, which correspond to the first air intake units one by one.

7. The aerosol generating device according to claim 3, wherein: The outer side wall of the sleeve is provided with a plurality of axially extending dividing ribs, each of which abuts against the side wall of the first mounting channel to define a plurality of first air inlet sections spaced apart along the circumference of the sleeve.

8. The aerosol generating device according to claim 3, wherein: A portion of the end surface of the sleeve near the opening is protrudingly provided with an annular boss, the second air inlet section and the suction airway are respectively located on the inner and outer sides of the annular boss, and the annular boss can be detachably abutted against the aerosol generating product accommodated in the accommodating chamber.

9. The aerosol generating device according to claim 3, wherein: The air outlet unit further includes a first sealing member, which is sandwiched between the suction member and a side wall of the second installation channel.

10. The aerosol generating device according to claim 2, wherein: The aerosol generating device includes a first elastic member, which is arranged between the air outlet unit and the main body. When the cover assembly closes the opening, the aerosol generating product arranged in the accommodating cavity squeezes the air outlet unit and drives the air outlet unit to move in a direction away from the opening, so that the first elastic member undergoes elastic deformation.

11. The aerosol generating device according to claim 10, wherein: The body comprises a supporting structure and an upper cover, the supporting structure is provided with a first mounting hole, the upper cover is provided with a second mounting hole, the second mounting hole is communicated with the first mounting hole and the two together constitute the first mounting channel; The upper cover is disposed on an end of the support structure away from the accommodating cavity, and the first elastic member is disposed between the upper cover and the air outlet unit.

12. The aerosol generating device according to claim 10, wherein: The distance that the air outlet unit moves axially along the first installation channel ranges from 0.3 mm to 1 mm.

13. The aerosol generating device according to claim 2, wherein: The cover assembly further includes a second seal, at least a portion of which is sandwiched between a side wall of the first installation channel and the air outlet unit.

14. The aerosol generating device according to claim 13, wherein: One end of the second sealing member close to the opening is detachably abutted against the shell assembly, the second sealing member is annular, and the connection point between the second air inlet section and the opening is located on the inner side of the second sealing member.

15. The aerosol generating device according to claim 2, wherein: The suction air duct includes a contraction section, a throat section and an expansion section which are sequentially arranged along the flow direction of the airflow. Along the flow direction of the airflow, the flow cross-sectional area of ​​the contraction section gradually decreases, and the flow cross-sectional area of ​​the expansion section gradually increases, and the flow cross-sectional areas of the contraction section and the expansion section are not less than the flow cross-sectional area of ​​the throat section.

16. The aerosol generating device according to claim 1, wherein: The cover assembly is provided with an air supply channel, and two ends of the air supply channel are respectively communicated with the outside and the accommodating cavity.

17. The aerosol generating device according to claim 16, wherein: The cover assembly includes a body and an air outlet unit, the air outlet unit is provided with the air supplement channel and a suction air channel communicating with the accommodating cavity, and the air supplement channel is communicated to an end of the suction air channel close to the accommodating cavity.

18. The aerosol generating device according to claim 17, wherein: The air outlet unit comprises a sleeve and a suction piece, an air supply groove is formed on the inner wall of the sleeve, and the air supply channel is defined between the groove wall of the air supply groove and the suction piece.

19. The aerosol generating device according to claim 1, wherein: The air inlet channel also includes a second sub-air channel, which is defined between the cavity wall of the accommodating cavity and the aerosol generating product accommodated in the accommodating cavity. When the cover assembly is in a state of closing the opening, the second sub-air channel is connected to the first sub-air channel.

20. The aerosol generating device according to claim 19, wherein: The second sub-air channel includes a third air inlet segment and a fourth air inlet segment which are interconnected, wherein the third air inlet segment is located on the peripheral side of the aerosol generating product contained in the containing cavity, and the fourth air inlet segment is located on the end of the aerosol generating product contained in the containing cavity away from the opening.

21. The aerosol generating device according to claim 20, wherein: The shell assembly includes a shell, a heating pipe and a seat body, the shell is provided with a accommodating space and the opening, the seat body is arranged in the accommodating space and connected to the shell, one end of the heating pipe is communicated with the opening, and the other end is arranged on the seat body and defines the accommodating cavity with the seat body, and the cover assembly is arranged on the shell.

22. The aerosol generating device according to claim 21, wherein: The third air inlet section is defined between the side wall of the aerosol generating product contained in the containing cavity and the tube wall of the heating tube; A first guide groove extending in the radial direction of the heating tube is provided on one side of the seat body facing the accommodating cavity, and the fourth air inlet section is defined between the groove wall of the first guide groove and the aerosol generating product accommodated in the accommodating cavity.

23. The aerosol generating device according to claim 22, wherein: The seat body is provided with a guide channel connected with the accommodating cavity. The aerosol generating device also includes a driving component. At least a part of the driving component is movably arranged in the guide channel. The driving component can drive the aerosol generating product to move out of the accommodating cavity through the opening.

24. An aerosol generating device according to claim 23, wherein: A second guide groove is provided at one end of the driving component facing the accommodating cavity. The second guide groove extends along the radial direction of the heating tube, and the second guide groove can be communicated with the first guide groove.

25. An aerosol generating device according to claim 24, wherein: The shell assembly also includes a third seal, which is sandwiched between the side wall of the guide channel and the drive assembly.

26. The aerosol generating device according to claim 1, wherein: The cover assembly is rotatably disposed on the shell assembly, and the cover assembly is configured to have an open state and a closed state. The cover assembly can switch between the closed state and the open state by flipping to selectively open or close the opening. In the open state, the accommodating chamber and the first sub-air channel are respectively connected to the outside world, and in the closed state, the accommodating chamber is connected to the outside world via the first sub-air channel.

27. An aerosol generating device according to claim 26, wherein: The aerosol generating device also includes a driving assembly that is drivingly connected to the cover assembly. The cover assembly switches from the closed state to the open state. The cover assembly can drive the driving assembly to move. The driving assembly moves to drive at least a portion of the aerosol generating product to move out of the accommodating chamber through the opening.

28. The aerosol generating device according to claim 26, wherein: The shell assembly includes a shell, a heating tube and a seat body, the shell is provided with a accommodating space and the opening, the seat body is arranged in the accommodating space and connected to the shell, one end of the heating tube is communicated with the opening, and the other end is arranged on the seat body and defines the accommodating cavity with the seat body, and the cover assembly is rotatably arranged on the shell.

29. An aerosol generating device according to claim 28, wherein: The shell includes an outer shell and a connecting cover, the outer shell is provided with an opening, the connecting cover is arranged at the opening and defines the accommodating space with the outer shell, the opening is arranged on the connecting cover, and the cover assembly is rotatably arranged on the outer shell and / or the connecting cover.

30. An aerosol generating system, comprising an aerosol generating article and the aerosol generating device according to any one of claims 1 to 29, wherein the aerosol generating article is arranged in the containing cavity, and the aerosol generating device further comprises a heating element, wherein the heating element is used to heat the aerosol generating article to generate an aerosol.

Images