Aerosol generating device, system and its supporting capsule

Abstract

The embodiment of the present application relates to the technical field of aerosol, and discloses an aerosol generating device and system.The aerosol generating device comprises: a main body having opposite proximal and distal ends; a mouthpiece having a mouthpiece air outlet hole, the mouthpiece being positioned at the proximal end of the main body; a heating assembly positioned at the distal end of the main body and arranged in the main body, the heating assembly defining a heating chamber having an open end and being used for accommodating or removing the evaporable precursor material containing from the open end; the heating assembly comprises a heating body, the heating body having opposite fixed and free ends extending axially along the fixed end towards the open end, and the heating body being configured to enable the free end to be inserted into the evaporable precursor material when the evaporable precursor material is accommodated in the heating chamber.Through the above manner, the embodiment of the present application can make the heating body heat the evaporable precursor material more uniformly, and the heating effect is better.

Description

Technical field

[0001] The embodiments of the present invention relate to the field of aerosol technology, and in particular to an aerosol generating device, system and a capsule used in conjunction therewith. [Background Technology]

[0002] In recent years, the field of new tobacco and herbal products has been rapidly developing, primarily in the areas of electronic cigarettes and heat-not-burn (HNB) devices. Electronic cigarettes, also known as vaping devices, work by heating and vaporizing tobacco liquid into an aerosol that is inhaled by the user. Like snuff and chewing tobacco, HNB devices are electronic products designed by the tobacco industry to reduce the harmful effects of tobacco combustion. Because the taste of HNB devices is more similar to that of traditional cigarettes, they are more popular with consumers.

[0003] As an example, a heat-not-burn smoking device includes a heating element that is used in conjunction with a tobacco product or herbal product. When the smoking device is used, the tobacco product or herbal product is heated by the heating element built into the smoking device, generating smoke. The smoke is then transmitted through the internal airway of the smoking device to the mouthpiece for inhalation by the user. During the development of the present invention, the inventors discovered that the prior art suffers from at least the following problem: Heat-not-burn smoking devices heat unevenly during the heating process. [Summary of the invention]

[0004] In response to the above technical problems, some embodiments of the present application provide an aerosol generating device that overcomes or at least partially solves the above problems. The aerosol generating device includes:

[0005] a main body having opposing proximal and distal ends;

[0006] A suction nozzle having a suction nozzle air outlet, the suction nozzle being positioned at the proximal end of the main body;

[0007] a heating assembly positioned at a distal end of the body, the heating assembly being disposed within the body, the heating assembly defining a heating chamber having an open end, the heating chamber being configured to receive or remove a vaporizable precursor material from the open end;

[0008] The heating component includes a heating element, which is positioned in the heating chamber. The heating element has opposite fixed ends and a free end extending axially along the fixed ends toward the open end. The heating element is configured so that when the vaporizable precursor material is accommodated in the heating chamber, the free end can be inserted into the vaporizable precursor material.

[0009] In a preferred embodiment, the opening end of the heating chamber and the suction nozzle have opposite directions.

[0010] In a preferred embodiment, the heating element is configured in an elongated shape.

[0011] In a preferred embodiment, the heating element is fixed at the center of the heating chamber.

[0012] In a preferred embodiment, the heating assembly further comprises a base, wherein the base comprises a bottom wall and a side wall extending from the bottom wall, wherein the bottom wall and the side wall jointly define the heating chamber having the open end.

[0013] In a preferred embodiment, the heating element includes a resistive heating element, and the resistive heating element is electrically connected to a control board of the aerosol generating device.

[0014] In a preferred embodiment, the heating element includes an induction heating element, and an induction coil capable of electromagnetically coupling with the induction heating element is disposed around the outer periphery of the side wall of the substrate, and the induction coil is electrically connected to the control board of the aerosol generating device.

[0015] In a preferred embodiment, the side wall of the base body is provided with a first abutting portion and a second abutting portion, and the first abutting portion and the second abutting portion axially abut the base body against the inside of the main body.

[0016] In a preferred embodiment, the induction coil is attached between the first abutting portion and the second abutting portion.

[0017] In a preferred embodiment, the aerosol generating device further comprises a bottom cover, and the bottom cover is configured to close or open the open end of the heating chamber.

[0018] In a preferred embodiment, an aerosol channel extending between the proximal end and the distal end is formed in the main body, and the aerosol channel includes an air inlet port adjacent to the heating chamber and connected to the heating chamber by air flow, and the air inlet port is configured to be exposed when the bottom cover is removed.

[0019] In a preferred embodiment, the bottom cover further includes a retaining member, and the retaining member is used to keep the bottom cover connected to the main body when the bottom cover opens the open end of the heating chamber.

[0020] In a preferred embodiment, a first accommodating cavity is defined at the proximal end of the main body, at least a portion of the suction nozzle is accommodated in the first accommodating cavity, and an opening end of the heating chamber and an opening end of the first accommodating cavity have opposite directions.

[0021] In a preferred embodiment, a second accommodating cavity is defined inside the main body, and the base is at least partially accommodated in the second accommodating cavity.

[0022] In a preferred embodiment, the base further includes an extension wall extending axially from the bottom wall toward the suction nozzle, the extension wall and the bottom wall define an installation space, and the installation space protrudes from the second accommodating cavity.

[0023] In a preferred embodiment, the heating assembly further includes a heating element fixing member, which fixes the heating element in the installation space.

[0024] Some embodiments of the present application further provide a capsule for the above-mentioned aerosol generating device, wherein the capsule encapsulates a vaporizable precursor material, and the capsule comprises:

[0025] a housing defining an insertion hole;

[0026] The insertion hole is configured so that when the capsule is accommodated in the aerosol generating device, the free end of the heating element can be inserted into the capsule through the insertion hole.

[0027] In a preferred embodiment, the housing has a first end and a second end opposite to each other, and the insertion hole is located at the first end.

[0028] In a preferred embodiment, the first end defines a capsule air inlet hole for air to enter the capsule; the second end defines a capsule air outlet hole for air to exit the capsule.

[0029] In a preferred embodiment, the capsule air inlet holes include a plurality of capsule air inlet holes, and the plurality of capsule air inlet holes are arranged around the insertion hole.

[0030] Some embodiments of the present application further provide an aerosol generating system, comprising:

[0031] an aerosol generating device, the aerosol generating device comprising the aerosol generating device described above;

[0032] a capsule encapsulating or containing a vaporizable precursor material;

[0033] The aerosol generating device is used to receive the capsule and heat the capsule, so that at least one component of the vaporizable precursor material encapsulated in the capsule is volatilized by heat to generate an aerosol that can be inhaled.

[0034] One of the above technical solutions of this application has the following technical effects:

[0035] In an embodiment of the present application, the aerosol generating device includes a main body having a proximal end and a distal end, the proximal end of the main body being provided with a mouthpiece outlet, the distal end of the main body being provided with a heating chamber capable of accommodating or removing a vaporizable precursor material, a heating element being fixed in the heating chamber, the heating element having a free end, and when the vaporizable precursor material is accommodated in the heating chamber, the free end of the heating element can be inserted into the vaporizable precursor material and heat the vaporizable precursor material. Through the above-mentioned method, when the vaporizable precursor material is accommodated in the heating chamber, the heating element can be directly inserted into the vaporizable precursor material for heating, and heat is radiated to the surrounding vaporizable precursor material with the heating element as the center to heat it, so that the aerosol generated by the heated vaporizable precursor material is discharged from the mouthpiece outlet for inhalation by the user. This central heating method can make the heating element heat the vaporizable precursor material more uniformly, and the heating effect is better.

Brief Description of the Drawings

[0036] One or more embodiments are exemplarily illustrated by corresponding drawings, which do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0037] Figure 1 A three-dimensional schematic diagram of an aerosol generating device provided in an embodiment of the present invention in one direction;

[0038] Figure 2 for Figure 1 An exploded schematic diagram of the aerosol generating device at one viewing angle;

[0039] Figure 3 for Figure 1 A three-dimensional schematic diagram of the main body of the aerosol generating device in one direction;

[0040] Figure 4 for Figure 3 Schematic diagram of the decomposition of the main body in one direction;

[0041] Figure 5 for Figure 4 A three-dimensional schematic diagram of the fixing frame of the central body in one direction;

[0042] Figure 6 for Figure 5 A three-dimensional schematic diagram of the middle fixing frame in another direction;

[0043] Figure 7 for Figure 1 A three-dimensional schematic diagram of the aerosol generating device hiding the main body shell in one direction;

[0044] Figure 8 for Figure 7 A three-dimensional schematic diagram of a support frame of the aerosol generating device in one direction;

[0045] Figure 9 For Figure 8 A perspective view of the middle support frame in another direction;

[0046] Figure 10 For Figure 1 A perspective view of the bottom cover of the middle aerosol generating device in one direction;

[0047] Figure 11 For Figure 10 An exploded view of the bottom cover in another direction;

[0048] Figure 12 For Figure 3 An exploded view of the heating assembly of the main body in one perspective;

[0049] Figure 13 For Figure 12 A perspective view of the base body of the heating assembly in one direction;

[0050] Figure 14 For Figure 13 A perspective view of the base body in another direction;

[0051] Figure 15 For Figure 1 A perspective view of the capsule used in cooperation with the middle aerosol generating device in one direction;

[0052] Figure 16 For Figure 15 A perspective view of the capsule in another direction;

[0053] Figure 17 For Figure 1 A cross-sectional view of the middle aerosol generating device used in cooperation with Figure 15 The capsule;

[0054] Figure 18 For Figure 17 A partial enlarged view of the air inlet area;

[0055] Figure 19 For Figure 12 A perspective view of the heating element of the heating assembly in one direction;

[0056] Figure 20 For Figure 12 A perspective view of the heating element fixing block of the heating assembly in one direction;

[0057] Figure 21 For Figure 20 A perspective view of the heating element fixing block in another direction;

DETAILED DESCRIPTION

[0058] In order to facilitate the understanding of the present invention, the present invention is described in more detail below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" / "fixed to" another element, it can be directly on the other element, or one or more intermediate elements can exist therebetween. When an element is described as being "connected to" another element, it can be directly connected to the other element, or one or more intermediate elements can exist therebetween. The terms "upper", "lower", "left", "right", "inside", "outside" and similar expressions used in this specification are for illustrative purposes only.

[0059] Unless otherwise defined, all technical and scientific terms used in this specification have the same meanings as those commonly understood by those skilled in the art to which this invention pertains. The terms used in this specification are intended only to describe specific embodiments and are not intended to limit the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0060] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0061] In the embodiment of the present invention, the "installation" includes fixing or restricting a component or device to a specific position or place by welding, screwing, clamping, bonding, etc. The component or device can remain stationary at the specific position or place or move within a limited range. After the component or device is fixed or restricted to a specific position or place, it may or may not be disassembled, which is not limited in the embodiment of the present invention.

[0062] One embodiment of the present invention provides an aerosol generating device 100, see Figure 1-Figure 2 , which respectively show a three-dimensional schematic diagram of the aerosol generating device 100 provided by an embodiment of the present invention in one direction and an exploded schematic diagram under one viewing angle.

[0063] The aerosol generating device 100 includes a mouthpiece 10, a main body 20 and a bottom cover 30. The main body 20 is generally cylindrical in structure and has a proximal end 110 and a distal end 120 opposite to each other along the length direction. The mouthpiece 10 is provided at the proximal end 110 of the main body 20 and is used to discharge the aerosol generated by the main body 20 from the mouthpiece 10 for the user to inhale at the mouthpiece 10; the main body 20 is used to accommodate a capsule 40, which encapsulates a evaporable precursor material. The main body 20 is used to heat the evaporable precursor material in the capsule 40, so that at least one component of the evaporable precursor material evaporates to form an aerosol that can be inhaled by the user; the bottom cover 30 is provided at the distal end 120 of the main body and can be separated from or combined with the main body 20. When a user needs to use the aerosol generating device 100, they can first separate the bottom cover 30 from the main body 20, load the capsule 40 into the main body 20 from the distal end 120 of the main body 20, and then replace the bottom cover 30 into the main body 20 to activate the aerosol generating device 100. The main body 20 will then begin to heat the capsule 40, thereby generating an aerosol for the user to inhale. It should be noted that in other embodiments of the present invention, the bottom cover 30 can also be omitted. For example, the capsule 40 can be designed to be detachably connected to the main body 20. When the aerosol generating device 100 is needed, the capsule 40 can be directly installed and fixed in the main body 20. When the aerosol generating device 100 is no longer needed or after the vaporizable precursor material in the capsule 40 has been used up, the capsule 40 can be directly removed from the main body 20.

[0064] It is worth noting that, as an example, the vaporizable precursor material can be a solid or semi-solid herbal material, such as tobacco or medicinal herbs. Suitable sources of herbal materials can be natural herbs that have not been processed or have been simply processed and dried. Preferably, the herbal material does not contain additives. The herb can be a single herb or a mixture of different herbs to obtain, for example, a unique flavor, aroma, and / or combination of active substances. The vaporizable precursor material can also be a paste, primarily composed of extracts or derivatives of such tobacco or medicinal herbs. The material of the vaporizable precursor material in the embodiments of the present invention is not limited to this. It only needs to meet the requirement that at least one component of the vaporizable precursor material can volatilize to produce an inhalable aerosol when heated to a certain temperature.

[0065] It should be noted that the vaporizable precursor material may be placed in the main body 20 without being encapsulated. For example, the vaporizable precursor material may be directly placed in the main body 20 , and the main body 20 directly heats the vaporizable precursor material.

[0066] For the above-mentioned suction nozzle 10, the suction nozzle 10 comprises a fixed end connected with the main body 20 and an opposite air outlet end, the air outlet end is provided with at least one suction nozzle air outlet hole 11, the number of the suction nozzle air outlet hole 11 can be set according to specific conditions, and the present application does not make any limitation, and the number of the suction nozzle air outlet hole 11 is preferably set to three in the embodiment. The suction nozzle 10 is preferably made of high-temperature-resistant plastic or silica gel material, for example, it is more appropriate to use heat insulation material for the suction nozzle 10, and the suction nozzle 10 and the main body 20 are connected in an interference fit, for example, the suction nozzle 10 is made of silica gel material, and then the suction nozzle 10 is inserted into the proximal end of the main body 20 by extrusion, because the silica gel has a certain elastic recovery force, the silica gel restores the elastic force after being inserted into the main body 20, and is tightly abutted with the main body 20, so as to realize the fixation of the suction nozzle 10 and the main body 20, when it is necessary to remove the suction nozzle cover, the suction nozzle 10 can be pulled out of the main body 20 by force, so as to realize the separation of the suction nozzle 10 and the main body 20. It can be understood that in other embodiments of the present application, the suction nozzle 10 and the main body 20 can also be connected in other detachable ways, such as buckle, thread or magnetic connection, as long as the suction nozzle 10 and the main body 20 can be detachably connected, of course, the suction nozzle 10 and the main body 20 can also be fixedly connected in a non-separable way.

[0067] For the above-mentioned main body 20, please refer to Figure 3-Figure 4 which respectively shows a three-dimensional schematic view of the main body 20 in one direction and an exploded schematic view in one perspective. The main body 20 comprises a shell 21, a fixing frame 22, a power supply 23, a control panel 24, a smoke guide pipe 25, a heating assembly 26 and a support frame 27, the fixing frame 22 is fixedly connected with the inner wall of the shell 21; the proximal end 110 of the shell 21 is defined with a first accommodating cavity 211, at least a part of the suction nozzle 10 is accommodated in the first accommodating cavity 211 and is fixed with the shell 21; the power supply 23, the control panel 24 and the smoke guide pipe 25 are installed on the fixing frame 22 along the length direction of the fixing frame 22, so as to fully utilize the use space of the aerosol generating device 100; the support frame 27 is fixed between the bottom cover 30 and the fixing frame 22 and is fixedly connected with the inner wall of the shell 21; the heating assembly 26 is fixed between the fixing frame 22 and the support frame 27, and is used for accommodating the capsule 40 and heating the capsule 40. The control panel 24 is electrically connected with the power supply 23, and the control panel 24 is electrically connected with the heating assembly 26, so as to realize the control of the control panel 24 on the heating of the heating assembly 26; the smoke guide pipe 25 is used for the passage of the aerosol from the distal end 120 of the main body 20 to the proximal end 110, so that the aerosol generated by the heatable precursor material can flow through the aerosol passage to the suction nozzle air outlet hole 11.

[0068] Please continue to refer to Figure 5-Figure 6, which respectively shows a perspective schematic diagram of the fixing frame from two different directions. The fixing frame 22 includes a support column 221. Extending along its length, the support column 221 has a first airflow gap-forming portion 222 at one end near the proximal end 110 of the main body. The first airflow gap-forming portion 222 is generally cylindrical in structure. The first airflow gap-forming portion 222 has an upper surface 2221 near the proximal end 110 of the main body 20 and an opposing lower surface 2222. The upper surface 2221 forms a first airflow gap 222a with the mouthpiece 10, forming an aerosol passage. The first airflow gap 222a is connected to the air outlet 11 of the mouthpiece 10. The first airflow gap-forming portion 222 defines a first through hole 2223 connecting the upper surface 2221 and the lower surface 2222. One end of the smoke guide tube 25 is connected to the first through hole 2223. The second through hole 2233a serves as the air outlet port of the aerosol passage. Aerosol escapes from the air outlet port into the first airflow gap 222a.

[0069] The support column 221 has a fixed frame fixing portion 223 extending along its length from one end near the distal end 120 of the main body. The fixing portion 223 includes a bottom wall 2231 and side walls 2232. The bottom wall 2231 and side walls 2232 together form a hollow structure with one end open, the open end facing the bottom cover 30. The side wall 2232 is provided with a fixing member 2232a. A matching fixing member (not shown) is provided on the corresponding inner wall of the housing 21. The fixing member 2232a allows the fixing frame 22 to be mounted to the inner wall of the housing 21. The bottom wall 2231 defines a second through-hole 2231a and a third through-hole 2231b. The other end of the smoke guide 25 communicates with the second through-hole 2231a and extends to the bottom cover 30. This allows aerosol generated by the heating assembly 26 to escape from the second through-hole 2231a through the smoke guide 25, the first airflow gap 222a, and the mouthpiece outlet 11 for inhalation by the user.

[0070] The bottom wall 2231 is provided with a heating assembly receiving portion 2233 axially extending toward the bottom cover 30, surrounding the third through hole 2231b. The heating assembly receiving portion 2233 is a through slot with two open ends, defining a second receiving cavity 2233a that communicates with the third through hole 2231b. The heating assembly 26 is received in the second receiving cavity 2233a and abuts against the inner wall of the heating assembly receiving portion 2233. It should be noted that to prevent heat generated by the heating assembly 26 from being transferred to the plastic material within the main body 20, which could cause deformation due to the high temperature, the heating assembly receiving portion 2233 is made of a heat-insulating material to minimize heat transfer from the heating assembly 26.

[0071] For the above support frame 27, see Figure 7-Figure 9, which respectively show a perspective schematic diagram of the aerosol generating device concealing the main housing from one direction and perspective schematic diagrams of the support frame from two different directions. The support frame 27 includes a bottom wall 271 and side walls 272. The side walls 272 abut against the side walls 2232 of the fixed connection portion 223. The bottom wall 271 and the side walls 272 together form a hollow cylindrical structure with one end open, the open end facing the fixed connection portion 223. The side wall 271 is provided with a support frame fixing member 273, through which the support frame 27 is mounted to the inner wall of the housing 21. The bottom wall 271 is provided with a fourth through hole 2711, which connects the second accommodating cavity 2233a with the third through hole 2231b. The capsule 40 can be received in the heating assembly 26 through the fourth through hole 2711.

[0072] The bottom wall 271 is provided with a magnetic member 2712 and a ball plunger 2713. The magnetic member 2712 and the ball plunger 2713 are used to achieve a detachable connection between the bottom cover 30 and the support frame 27. After the capsule 40 is loaded into the main body 20, the bottom cover 30 is returned to the main body 20, and the support frame 27 fixes the bottom cover 30 through the magnetic member 2712 and the ball plunger 2713. Since the magnetic force of the magnetic member 2712 may decrease or fail at high temperatures, it is necessary to add a fixing method of the ball plunger 2713 to ensure the effective fixation of the bottom cover 30 and the support frame 27. It is understandable that the fixing method of the bottom cover 30 and the support frame 27 can also be other methods, and the embodiment of the present invention does not limit this. It is only necessary to realize the detachable connection function of the bottom cover 30 and the support frame 27. The bottom wall 271 is further provided with a fifth through hole 2714. The other end of the smoke guide tube 25 extends from the second through hole 2231a through the fifth through hole 2714 to the bottom cover 30. The fifth through hole 2714 is the air inlet port of the aerosol channel. Through the provision of the fifth through hole 2714, after the bottom cover 30 is removed from the main body 20, the fifth through hole 2714 is exposed, and the residual smoke oil or tobacco residue in the smoke guide tube 25 can be conveniently cleaned through the air inlet port after the bottom cover 30 is removed.

[0073] Furthermore, since the user needs to remove the bottom cover 30 when loading or removing the capsule 40, in order to prevent the bottom cover 30 from being lost during this process, the bottom wall 271 is also provided with an axial hole 2715, which is used to cooperate with the bottom cover 30 to keep the bottom cover 30 and the support frame 27 connected after the bottom cover 30 is removed.

[0074] Furthermore, in order to make the aerosol generating device flow according to the preset airflow channel, it is necessary to seal the gap when the fixing frame 22 and the support frame 27 are assembled on the shell 21 so that the inner cavity of the main body 20 is sealed to prevent the airflow from flowing out of the gap. In this embodiment, the aerosol generating device is provided with a sealing member, including a first sealing ring 2225, a second sealing ring 2234, a third sealing ring 274 and a fourth sealing ring 275. The first sealing ring 2225 is arranged on the first airflow gap forming portion 222 to seal the assembly gap between the first airflow gap forming portion 222 and the inner wall of the shell 21; the second sealing ring 2234 is arranged on the fixing frame fixed connection portion 223 to seal the assembly gap between the fixing frame fixed connection 223 and the inner wall of the shell 21; the third sealing ring 274 and the fourth sealing ring 275 are arranged on the support frame 27 to seal the assembly gap between the support frame 27 and the inner wall of the shell 21.

[0075] Regarding the bottom cover 30, please continue to refer to Figure 10-11 , which respectively shows a three-dimensional schematic diagram of the bottom cover in one direction and an exploded schematic diagram from one perspective, the bottom cover 30 includes a bottom wall 31 and a side wall 32, the side wall 32 is provided with a fixing hole 321, the fixing hole 321 is used to be fixedly connected to the ball head plunger 2713 of the support frame 27; the bottom wall 31 is provided with a magnetic part 311, a bottom cover guide part 312 and a connecting rod 313, the magnetic part 311 is used to be magnetically fixed to the magnetic part 2712 of the support frame 27, and the bottom cover 30 is detachably fixed to the support frame 27 through the magnetic part 311 and the fixing hole 321; the connecting rod 313 is used to cooperate with the axial hole 2715 of the support frame 27 so that the bottom cover 30 remains connected to the main body 20 after being removed from the main body 20; the bottom cover guide part 312 is used to guide the aerosol escaping from the heating component 26 to the bottom cover 30 to the smoke guide pipe 25.

[0076] Specifically, one end of the connecting rod 313 is fixed to the bottom cover 30, and the other end is movably inserted into the shaft hole 2715 of the support frame 27 and passes through the bottom wall 271 of the support frame 27. The connecting rod 313 can freely extend and retract in the shaft hole 2715. A retaining ring 3131 is provided at the other end of the connecting rod 313. The retaining ring 3131 is sleeved on the other end of the connecting rod 313. The diameter of the retaining ring 3131 is larger than the aperture of the shaft hole 2715. When the bottom cover 30 is removed from the main body 20, the retaining ring 3131 abuts against the bottom wall 271 of the support frame 27, thereby ensuring that the bottom cover 30 remains connected to the main body 20 via the connecting rod 313. This method can prevent the bottom cover 30 from being easily lost when removing it.

[0077] It is understood that after the bottom cover 30 is removed from the main body 20, the manner in which the bottom cover 30 remains connected to the main body 20 is not limited thereto. Other manners may be employed in other embodiments of the present invention. For example, the connecting rod 313 may eliminate the retaining ring 3131, and the other end of the connecting rod 313 may be axially fixed in the shaft hole 2715 but circumferentially rotate in the shaft hole 2715, thereby allowing the bottom cover 30 to rotate horizontally about the connecting rod 313. When the capsule 40 needs to be loaded into the main body 20, the bottom cover 30 only needs to be rotated horizontally and then rotated back in the opposite direction. Alternatively, a rotating shaft (not shown) may be provided on the support frame 27, with the two ends of the rotating shaft movably connected to the bottom cover 30, so that the bottom cover 30 can rotate vertically about the rotating shaft. When the capsule 40 needs to be loaded into the main body 20, the bottom cover 30 only needs to be rotated vertically, while the bottom cover 30 and the main body 20 can still remain connected via the rotating shaft.

[0078] The bottom cover guide 312 is fixed to the bottom cover 30. The bottom cover 30 has a receiving area 33 that matches the shape of the bottom cover guide 312, and the bottom cover guide 312 is fixedly received in the receiving area 33. The bottom cover guide 312 defines a first air inlet 3121, a first air outlet 3122, and a through slot 3123. The through slot 3123 connects the first air inlet 3121 and the first air outlet 3122. The first air inlet 3121 connects to the fourth through hole 2711 of the support frame 27, and the first air outlet 3122 connects to the fifth through hole 2714 of the support frame 27. This allows aerosol generated by the heating assembly 30 to enter the bottom cover 30 through the first air inlet 3121, then enter the first air outlet 3122 through the through slot 3123, and then escape from the bottom cover 30 through the first air outlet 3122 to the air inlet port of the smoke guide 25. It should be noted that in order to allow the aerosol escaping from the heating component 26 to flow to the smoke guide tube 25 according to the preset airflow path, the bottom cover guide member 312 is preferably made of silicone material. The silicone material can play a sealing role, so that the aerosol escaping from the heating component 26 can flow to the smoke guide tube 25 according to the preset airflow path.

[0079] Furthermore, the bottom cover 30 is provided with a second air inlet 34 for the aerosol generating device 100. When a user inhales from the aerosol generating device 100, external air first enters the aerosol generating device through the second air inlet 34. There is at least one second air inlet 34. In the embodiment of the present invention, the number of second air inlet 34 is preferably two. The two second air inlet 34 are oppositely disposed at the junction of the two side walls 32 of the bottom cover 30.

[0080] With the bottom cover 30, since the first air inlet 3121 of the bottom cover 30 is connected to the fourth through hole 2711 of the support frame 23, and the capsule 40 is received in the heating assembly 26 via the fourth through hole 2711, when it is necessary to clean solid residue in the heating assembly 26, the bottom cover 30 can be directly removed from the main body 20 and then the heating assembly 26 can be cleaned. Furthermore, since the bottom cover guide 312 of the bottom cover 30 can guide the aerosol generated in the heating assembly 26 to the aerosol channel, the bottom cover guide 312 may retain the smoke oil or oil stains flowing through the aerosol. Furthermore, as described above, after the bottom cover 30 is removed, the air inlet port of the aerosol channel is exposed. Therefore, when it is necessary to clean the bottom cover guide 312 or the smoke oil or oil stains in the aerosol channel, the bottom cover 30 can be directly removed from the main body 20 for cleaning, making it more convenient for the user to clean the aerosol generating device 100.

[0081] For the above heating assembly 26, please continue to refer to Figure 12 The heating component 26 includes a base 261 , a heating element 262 and a heating element fixing member 263 , and the heating element 262 is fixed in the base 261 through the heating element fixing member 263 .

[0082] Please continue reading Figures 13-18 The base 261 includes a bottom wall 2611 and an open end 2612 relative to each other, and a side wall 2613 extending axially between the bottom wall 2611 and the open end 2612, with the open end 2612 facing the bottom cover 30. The bottom wall 2611 and the side wall 2613 jointly define a heating chamber 2614. The capsule 40 can be received in the heating chamber 2614 through the fourth through hole 2711 of the support frame 27 and heated in the heating chamber 2614. The base 261 also includes an extension wall 2615 extending axially from the bottom wall 2611 toward the nozzle 10. The extension wall 2615 and the bottom wall 2611 together define an installation space 2616. The heating element fixture 263 securely mounts the heating element 262 in the installation space 2616. The heating chamber 2614 and the installation space 2616 are located on either side of the third through hole 2231b of the fixing frame fixing connection portion 223. The side wall 2613 of the base 261 abuts against the inner wall of the heating element receiving portion 2233, thereby relatively fixing the base 261 in the radial direction. The bottom wall 2611 of the base 261 defines a through hole 2611a, through which the heating element 262 is secured in the installation space 2616.

[0083] Furthermore, the base 261 further includes a first abutting portion 2617 and a second abutting portion 2618. The first abutting portion 2617 and the second abutting portion 2618 respectively abut against the bottom wall 2231 of the fixing frame fixing connection portion 223 and the support frame 27, thereby relatively fixing the base 261 in the axial direction. In a specific embodiment, the first abutting portion 2617 and the second abutting portion 2618 are respectively protruding structures extending radially away from the base from the side wall 2613 of the base. It is understood that the axial fixing method of the base 261 can also adopt other methods well known to those skilled in the art, and the present embodiment is not limited thereto.

[0084] Furthermore, in order to introduce external air into the capsule 40 so that the airflow can carry away the aerosol generated by the heating of the capsule 40 for the user to inhale, the capsule 40 provided in this embodiment for use in conjunction with the aerosol generating device 100 includes a shell, the shell having a first end 41 and a second end 42 opposite to each other and a side wall 43 extending axially between the first end 41 and the second end 42. When the capsule 40 is accommodated in the heating chamber 2614, the side wall 43 abuts against the inner wall of the side wall 2613 of the base 261, the first end 41 is adjacent to the bottom wall 2611 of the base 261, and the second end 42 is adjacent to the open end 2612 of the base 261. The first end 41 is provided with a capsule air inlet hole 411 and an insertion hole 412 for inserting the heating element 262 into the capsule 40, the second end 42 is provided with a capsule air outlet hole 421, and the capsule air outlet hole 421 is connected to the air inlet hole 3121 of the bottom cover guide member 312. The side wall 43 is provided with a The groove 431 extends between the first end 41 and the second end 42. The groove 431 and the inner wall of the side wall 2613 of the base 261 form a first air inlet path 4311. Since the side wall 43 of the capsule 40 is in abutment with the inner wall of the side wall 2613 of the base 261, this method allows the air entering through the air inlet 34 of the bottom cover 30 to continue to flow from the second end 42 to the first end 41 through the first air inlet path 4311, and then enter the capsule 40 through the capsule air inlet 411 of the first end 41. The air passes through the evaporable precursor material in the capsule 40 and carries the aerosol generated by the evaporable precursor material to escape from the capsule air outlet 421 to the bottom cover 30. The air entering the capsule 40 from the capsule air inlet 411 and flowing through the evaporable precursor material to the capsule air outlet 421 can be referred to as the second air inlet path. Combined with the aforementioned airflow paths, the airflow channel of the entire aerosol generating device 100 is described as follows:

[0085] When the aerosol-generating device 100 equipped with the capsule 40 is smoked, the external air enters the bottom cover 30 through the second air inlet hole 34 of the bottom cover 30, and then flows to the capsule air inlet hole 411 along the first air inlet path 4311 from the bottom cover 30, and then escapes to the bottom cover 30 through the second air inlet path, and then enters the air inlet port of the aerosol passage, i.e., the smoke guide pipe 25, from the bottom cover guide 312 of the bottom cover 30, and then flows into the first air flow gap 222a from the air outlet port of the smoke guide pipe 25, and then is supplied to the user for smoking from the mouthpiece air outlet hole 11 through the first air flow gap 222a. The air flow channel is generally in the shape of an "N" letter as a whole.

[0086] It can be understood that the first air inlet path 4311 can also be configured without the groove 431 on the capsule 40, for example, the first air inlet path 4311 can be configured by providing a groove on the inner wall of the side wall 2613 of the base body 261 abutting against the capsule 40, or neither the capsule 40 nor the inner wall of the side wall 2613 of the base body 261 needs to be provided with a groove. When the capsule 40 is accommodated in the heating chamber 2614, there is a gap between the capsule 40 and the inner wall of the side wall 2613 of the base body 261, which can serve as the first air inlet path 4311. The embodiments of the present application do not limit this, as long as the air can flow from the second end portion 42 to the first end portion 41 of the capsule 40 and enter the capsule 40 from the capsule air inlet hole 411 of the first end portion 41.

[0087] It should be noted that the capsule 40 can also not be provided with the capsule air inlet hole 411 and the capsule air outlet hole 421. For example, the capsule shell can be made of a breathable material to achieve the entry and exit of air into and out of the capsule 40 through the air permeability of the breathable material. Alternatively, the capsule 40 can also not be provided with the capsule air inlet hole 411, and the insertion hole 412 can also be used as the capsule air inlet hole. The embodiments of the present application do not limit the air inlet and outlet mode of the capsule, as long as the external air can enter the capsule 40 and pass through the vaporizable precursor material, and the aerosol generated by heating the vaporizable precursor material can be taken out of the capsule 40 and into the bottom cover guide 312 of the bottom cover 30.

[0088] Please refer to Figures 19-21 Meanwhile, in combination with Figure 12 and Figure 13The heating element 262 is arranged in the heating chamber 2614, and includes a fixed end 2621 and an opposite free end 2622. The fixed end 2621 is fixed in the mounting space 2616 of the base 261, and the free end 2622 extends from the fixed end 2621 in the axial direction of the heating chamber towards the opening end 2612 of the base 261. When the capsule 40 is received in the heating chamber 2614, the free end 2622 is inserted into the capsule 40 through the insertion hole 412 of the capsule 40, so that at least a portion of the heating element 262 is located inside the capsule 40 and heats the vaporizable precursor material enclosed in the capsule 40, so that at least a portion of the vaporizable precursor material volatilizes to generate an aerosol for a user to smoke. Since the heating element 262 is inserted into the vaporizable precursor material in the capsule 40, the heating element 262 can radiate heat to the surrounding vaporizable precursor material and heat the vaporizable precursor material, which is more uniform than the peripheral heating method in the prior art, i.e., the heating element is arranged on the outer wall of the heating chamber, and heat is transferred to the capsule through the outer wall of the heating chamber.

[0089] In order to make the heating element 262 inserted into the capsule 40 produce better heating effect, so that the vaporizable precursor material in the capsule 40 can be heated sufficiently and uniformly, preferably, the heating element 262 can be configured in an elongated shape, which can increase the resistance value of the conductor inside the heating element, thereby improving the heating efficiency. Alternatively, the heating element 262 is arranged at the center position of the heating chamber 2614, which facilitates the insertion of the heating element 262 into the center position of the capsule 40 for central heating, which can more uniformly heat the vaporizable precursor material in the capsule 40.

[0090] In some embodiments, the heating element 262 can be a resistance heating element, for example, a ceramic heating element, which needs to be provided with a heating electrode (not shown in the figure) to be electrically connected to the control panel 24, so as to control the heating of the heating element 262. The heating element 262 can also be an induction heating element, and the conductor in the heating element 262 generates heat when it is inducted by an electric current. For example, in the present embodiment, the heating element 262 is an electromagnetic induction heating element, and an electromagnetic induction coil 2613a is attached to the outer wall of the side wall 2613 of the base 261. Specifically, the electromagnetic induction coil can be attached between the first abutting portion 2617 and the second abutting portion 2618 of the base 261. After the electromagnetic induction coil is electrified, an alternating magnetic field is generated, and the heating element 262 generates corresponding eddy current under the action of the alternating magnetic field, so that the conductor in the heating element 262 generates heat.

[0091] The heating element fixing part 263 includes a heating element fixing block 2632, a heating element silicone 2633 and a plug-in part 2634. The fixed end 2621 of the heating element 262 is provided with a heating element base 2623. The heating element base 2623 is abutted between the heating element fixing block 26321 and the heating element silicone 2633. The plug-in part 2634 is clamped on the extension wall 2615 of the base 261 and abuts against the heating element silicone 2633.

[0092] Specifically, the fixing block 2632 includes a base 2632a and a protrusion 2632b extending axially along the base 2632a. The protrusion 2632b passes through the through hole 2611a of the base 261 and extends into the heating chamber 2614. The base 2632a is abutted against the through hole 2611a of the base 261. The protrusion 2632b is provided with a protrusion through hole 2632c, and the base 2632a is provided with a base through hole 2632d. The base through hole 2632d is connected to the protrusion through hole 2632c. The diameter of the base through hole 2632d is larger than the protrusion through hole 2632c, so that a fixing surface 2632f is formed between the base 2632a and the protrusion 2632b. The heating element base 2623 passes through the protrusion through hole 2632c and is inverted on the fixing surface 2632f. The heating element silicone 2633 is tightly fitted on the heating element base 2623 through the base through hole 2632d. The heating element silicone 2633 and the heating element base 2623 are in soft contact, which effectively prevents the heating element 262 from loosening. At the same time, the extended wall 2615 of the base 261 is provided with a plurality of plug holes 2615a, and the plug connector 2634 is provided with an adapted plug portion 2634a. The plug portion 2634a is inserted into the plug holes 2615a of the extended wall 2615 to fix the plug connector 2634, thereby fixing the heating element 262 in the same manner. It should be noted that the fixing method of the heating element 262 is not limited to this. In other embodiments of the present invention, other fixing methods can also be used. It is sufficient to only fix the heating element 262.

[0093] It is worth noting that when the capsule 40 is accommodated in the heating chamber 2614, since the protrusion 2632b of the fixing block 2632 passes through the through hole 2611a of the base 261 and extends into the heating chamber 2614, a second air flow gap 2614a is formed between the protrusion 2632b of the fixing block 2632 and the first end 41 of the capsule 40, and the external air enters the second air flow gap 2614a from the above-mentioned first air inlet path 4311, and then enters the capsule 40 from the second air flow gap 2614a through the capsule air inlet hole 411.

[0094] Furthermore, to prevent the heating element 262 from rotating in the radial direction, the fixing block 2632 is further provided with an arc-shaped boss 2632e, with the heating element base 2623 abutting against the boss 2632e, thereby preventing the heating element 262 from rotating in the radial direction. Furthermore, to prevent the high temperature heat of the heating element 262 from being transferred to the plastic material on the fixing frame 22 and causing deformation of the plastic material due to the high temperature, the heating element fixing block 2632 can be provided with a heat-insulating structure, such as a heat-insulating ceramic body.

[0095] One embodiment of the present invention further provides an aerosol generating system, which includes the aerosol generating device 100 and the capsule 40 as described in the above embodiment.

[0096] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Under the concept of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above. For the sake of simplicity, they are not provided in detail. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An aerosol generating device, characterized in that include: a main body having opposing proximal and distal ends; A suction nozzle having a suction nozzle air outlet, the suction nozzle being positioned at the proximal end of the main body; a heating assembly positioned at a distal end of the body, the heating assembly being disposed within the body, the heating assembly defining a heating chamber having an open end, the heating chamber being configured to receive or remove a vaporizable precursor material from the open end; wherein the heating assembly comprises a heating element, the heating element being positioned in the heating chamber, the heating element having opposite fixed ends and a free end extending axially from the fixed ends toward the open end, the heating element being configured such that when the vaporizable precursor material is received in the heating chamber, the free end can be inserted into the vaporizable precursor material; The opening end of the heating chamber is oriented away from the mouthpiece, and the aerosol generating device further comprises a bottom cover configured to close or open the opening end of the heating chamber.

2. The aerosol generating device according to claim 1, wherein The heating element is configured in an elongated shape.

3. The aerosol generating device according to claim 1, wherein The heating element is fixed at the center of the heating chamber.

4. The aerosol generating device according to claim 1, wherein The heating assembly further includes a base body, wherein the base body includes a bottom wall and a side wall extending from the bottom wall, wherein the bottom wall and the side wall jointly define the heating chamber having the open end.

5. The aerosol generating device according to claim 1, wherein: The heating element includes a resistance heating element, and the resistance heating element is electrically connected to the control board of the aerosol generating device.

6. The aerosol generating device according to claim 4, characterized in that The heating element includes an induction heating element. An induction coil capable of electromagnetically coupling with the induction heating element is disposed around the outer periphery of the side wall of the base body. The induction coil is electrically connected to the control board of the aerosol generating device.

7. The aerosol generating device according to claim 6, characterized in that The side wall of the base body is provided with a first abutting portion and a second abutting portion, and the first abutting portion and the second abutting portion axially abut the base body against the inside of the main body.

8. The aerosol generating device according to claim 7, wherein: The induction coil is attached between the first abutting portion and the second abutting portion.

9. The aerosol generating device according to claim 1, wherein: An aerosol passage is formed in the body and extends between the proximal end and the distal end. The aerosol passage includes an air inlet port adjacent to and in fluid communication with the heating chamber. The air inlet port is configured to be exposed when the bottom cover is removed.

10. The aerosol generating device according to claim 1, wherein The bottom cover further includes a retaining member configured to keep the bottom cover connected to the main body when the bottom cover opens the open end of the heating chamber.

11. The aerosol generating device according to claim 1, wherein The proximal end of the main body defines a first accommodating cavity, and at least a portion of the suction nozzle is accommodated in the first accommodating cavity. The opening end of the heating chamber and the opening end of the first accommodating cavity have opposite directions.

12. The aerosol generating device according to claim 4, wherein: A second accommodating cavity is defined inside the main body, and the base is at least partially accommodated in the second accommodating cavity.

13. The aerosol generating device according to claim 12, wherein: The base further includes an extension wall extending axially from the bottom wall toward the suction nozzle, wherein the extension wall and the bottom wall define an installation space, and the installation space protrudes from the second accommodating cavity.

14. The aerosol generating device according to claim 13, wherein: The heating assembly further includes a heating element fixing member, which fixes the heating element in the installation space.

15. An aerosol generating system, characterized in that include: An aerosol generating device, the aerosol generating device comprising the aerosol generating device according to any one of claims 1 to 14; a capsule encapsulating or containing a vaporizable precursor material; The aerosol generating device is used to accommodate the capsule and heat the capsule, so that at least one component of the vaporizable precursor material in the capsule is volatilized by heat to generate an aerosol that can be inhaled.

16. An aerosol generating system according to claim 15, characterized in that The capsule comprises: a housing defining an insertion hole; The insertion hole is configured so that when the capsule is accommodated in the aerosol generating device, the free end of the heating element can be inserted into the capsule through the insertion hole.

17. An aerosol generating system according to claim 16, wherein: The housing has a first end and a second end opposite to each other, and the insertion hole is located at the first end.

18. An aerosol generating system according to claim 17, wherein The first end defines a capsule air inlet hole for air flow to enter the capsule; the second end defines a capsule air outlet hole for air flow to exit the capsule.

19. An aerosol generating system according to claim 18, wherein The capsule air inlet holes include a plurality of capsule air inlet holes, and the plurality of capsule air inlet holes are arranged around the insertion hole.

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