Aerosol generating device and aerosol generating system

Abstract

This invention relates to the field of aerosol technology and discloses an aerosol generating device and system. The aerosol generating device includes: a main body having opposing proximal and distal ends, with an aerosol channel extending between the proximal and distal ends; a suction nozzle with a suction outlet located at the proximal end of the main body; a heating assembly located at the distal end of the main body, the heating assembly including a substrate and a heating element, the substrate defining a heating chamber with an open end for containing and heating an evaporable precursor material; and a bottom cover removably or movably connected to the distal end of the main body, the bottom cover capable of opening or closing the open end of the heating chamber, the bottom cover configured such that at least a portion of its surface is adjacent to the heating chamber to guide aerosol escaping from the open end into the aerosol channel. Through the above method, this invention provides greater convenience for users when cleaning solid residues or oil stains from the aerosol device.

Description

[Technical Field]

[0001] The present invention relates to the field of aerosol technology, and in particular to an aerosol generating device and an aerosol generating system. [Background Technology]

[0002] In recent years, the fields of new tobacco products and herbal medicine products have been developing rapidly, mainly focusing on electronic cigarettes and heated tobacco products. Electronic cigarettes, also known as vaporizing devices, work by heating and atomizing e-liquid to produce an aerosol that is then inhaled. Heated tobacco products, like snuff and chewing tobacco, are electronic products used by the tobacco industry to reduce the harmful effects of tobacco combustion emissions. Because the inhalation experience of heated tobacco products is more similar to that of traditional cigarettes, they are more popular with consumers.

[0003] As an existing example, heated tobacco products include a heating element that is used in conjunction with a tobacco product or a herbal product. When the product is used, the heating element heats the tobacco product or herbal product, generating smoke. This smoke is then transported through the internal air duct of the product to the mouthpiece for the user to inhale. In developing this invention, the inventors discovered that the prior art has at least the following problems: the air duct design of heated tobacco products is complex, and cleaning the air duct is inconvenient. [Summary of the Invention]

[0004] To address the aforementioned technical problems, some embodiments of this application provide an aerosol generating apparatus that overcomes or at least partially solves the above-mentioned problems. The aerosol generating apparatus includes:

[0005] The main body has a proximal end and a distal end, and the main body extends between the proximal end and the distal end to form an aerosol channel;

[0006] A suction nozzle with an air outlet is located at the proximal end;

[0007] A heating assembly, located at the distal end of the main body, includes a substrate and a heating element. The substrate defines a heating chamber with an open end, the heating chamber for containing an evaporable precursor material, and the heating element for heating the evaporable precursor material to generate an aerosol.

[0008] A bottom cover, removable or movably attached to the distal end of the body, is capable of opening or closing the opening of the heating chamber, wherein the bottom cover is configured such that at least a portion of its surface is adjacent to the heating chamber to guide aerosols escaping from the opening into the aerosol channel.

[0009] In a preferred embodiment, the bottom cover defines at least one second air inlet that communicates with the outside environment and is connected to the heating chamber.

[0010] In a preferred embodiment, the aerosol channel opening is exposed when at least a portion of the bottom cover is detached from the main body.

[0011] In a preferred embodiment, the bottom cover includes a bottom cover guide, which connects the heating chamber and the aerosol channel.

[0012] In a preferred embodiment, the bottom cover guide defines a first air inlet, a first air outlet, and a through groove connecting the first air inlet and the first air outlet. The first air inlet connects to the heating chamber, and the first air outlet connects to the aerosol channel.

[0013] In a preferred embodiment, the bottom cover defines a receiving area adapted to receive the bottom cover guide.

[0014] In a preferred embodiment, the bottom cover guide includes a silicone component.

[0015] In a preferred embodiment, the main body includes a fixed frame and a support frame, with the support frame supported between the bottom cover and the fixed frame.

[0016] In a preferred embodiment, the main body includes a housing, and the fixing frame and the support frame are provided with sealing elements, which seal against the inner wall of the housing.

[0017] In a preferred embodiment, the fixing frame includes a support column and a first airflow gap forming portion located near the proximal end of the support column close to the main body, wherein the first airflow gap forming portion and the suction nozzle define a first airflow gap.

[0018] In a preferred embodiment, the substrate includes a bottom wall and a side wall extending from the bottom wall toward the open end, the bottom wall and the side wall together defining the heating chamber.

[0019] In a preferred embodiment, at least a portion of the aerosol channel extends longitudinally in parallel with the heating chamber.

[0020] In a preferred embodiment, at least a portion of the aerosol channel spans the heating chamber and is in fluid communication with the open end.

[0021] To address the aforementioned technical problems, another embodiment of this application provides an aerosol generating apparatus, comprising:

[0022] The main body has a proximal end and a distal end, and the main body extends between the proximal end and the distal end to form an aerosol channel;

[0023] A cigarette holder with an air outlet is located at the proximal end;

[0024] A heating assembly, located at the distal end of the main body, includes a substrate and a heating element. The substrate defines a heating chamber with an open end, the heating chamber for housing a capsule containing an evaporable precursor material. The heating element heats the evaporable precursor material in the capsule to generate an aerosol.

[0025] A bottom cover, removable or movably connected to the distal end of the main body, the bottom cover being capable of opening or closing the opening end of the heating chamber;

[0026] At least a portion of the aerosol channel spans the heating chamber and is in fluid communication with the open end, and the bottom cover is configured to expose the air inlet port of the aerosol channel when the open end is opened.

[0027] To address the aforementioned technical problems, some embodiments of this application also provide an aerosol generation system, comprising: an aerosol generation device and a capsule containing an evaporable precursor material, wherein the capsule is used in conjunction with the aerosol generation device, wherein the aerosol generation device includes the aforementioned aerosol generation device, and the heating element is used to heat the evaporable precursor material inside the capsule to generate an aerosol.

[0028] In a preferred embodiment, when the capsule is housed in the heating chamber, a first air intake path is formed between the outer wall of the capsule and the inner wall of the substrate.

[0029] In a preferred embodiment, the inner wall of the substrate or the outer wall of the capsule is defined by a groove, which forms the first air intake path.

[0030] In a preferred embodiment, a second air intake path is formed inside the capsule, which is in communication with the first air intake path and flows in the opposite direction, and the volatile precursor material is filled in the second air intake path.

[0031] In a preferred embodiment, the capsule has a first end and a second end, the first end defining a capsule air inlet, the second end defining a capsule air outlet, and the second air inlet path defined between the capsule air inlet and the capsule air outlet.

[0032] In a preferred embodiment, the heating assembly further includes a heating element fixing member, which defines a second airflow gap with the capsule, and the first air intake path communicates with the capsule air intake port through the second airflow gap.

[0033] One of the technical solutions described above in this application has the following technical effects:

[0034] In this embodiment, the aerosol device includes a body having a proximal end and a distal end, with an aerosol channel extending between the proximal and distal ends; a nozzle with an air outlet located at the proximal end of the body; a heating assembly located at the distal end of the body, the heating assembly including a substrate and a heating element, the substrate defining a heating chamber with an open end for containing and heating an evaporable precursor material; and a bottom cover removably or movably connected to the distal end of the body, the bottom cover capable of opening or closing the open end of the heating chamber, the bottom cover being configured such that at least a portion of its surface is adjacent to the heating chamber to guide aerosol escaping from the open end into the aerosol channel. In this way, when users need to clean the aerosol device, they can remove the bottom cover from the main body. Since the bottom cover can both close or open the heating opening and guide the aerosol escaping from the heating chamber into the aerosol channel, after removing the bottom cover, users can directly clean the solid residue in the heating chamber or the oil residue left by the aerosol flowing through the bottom cover, thus achieving the effect of convenient cleaning of the aerosol generating device. [Attached Image Description]

[0035] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0036] Figure 1 A three-dimensional schematic diagram of the aerosol generating device provided in an embodiment of the present invention in one direction;

[0037] Figure 2 for Figure 1 Exploded view of the aerosol device from one perspective;

[0038] Figure 3 for Figure 1 A three-dimensional schematic diagram of the main body of the aerosol device in one direction;

[0039] Figure 4 for Figure 3 A schematic diagram showing the decomposition of the main body in one direction;

[0040] Figure 5 for Figure 4 A three-dimensional schematic diagram of the fixing frame of the main body in one direction;

[0041] Figure 6 for Figure 5 A three-dimensional schematic diagram of the central fixing frame in another direction;

[0042] Figure 7 for Figure 1 A three-dimensional schematic diagram of the concealed main body shell of the aerosol device from one direction;

[0043] Figure 8 for Figure 7 A three-dimensional schematic diagram of the support frame of the aerosol generation device in one direction;

[0044] Figure 9 for Figure 8 A three-dimensional schematic diagram of the central support frame in another direction;

[0045] Figure 10 for Figure 1 A three-dimensional schematic diagram of the bottom cover of the aerosol device in one direction;

[0046] Figure 11 for Figure 10 An exploded view of the midsole cover from another direction;

[0047] Figure 12 for Figure 3 An exploded view of the heating assembly of the main body from one perspective;

[0048] Figure 13 for Figure 12 A three-dimensional schematic diagram of the substrate of the heating element in one direction;

[0049] Figure 14 for Figure 13 A three-dimensional schematic diagram of the matrix in another direction;

[0050] Figure 15 To and Figure 1 A three-dimensional schematic diagram of a capsule used in conjunction with an aerosol generator in one direction;

[0051] Figure 16 for Figure 15 A three-dimensional schematic diagram of the capsule from another direction;

[0052] Figure 17 for Figure 1 Medium aerosol device and Figure 15 A cross-sectional diagram of the combined use of Chinese capsules;

[0053] Figure 18 for Figure 17 A partially enlarged schematic diagram of the central air intake area;

[0054] Figure 19 for Figure 12 A three-dimensional schematic diagram of the heating element of the heating component in one direction;

[0055] Figure 20 for Figure 12 A three-dimensional schematic diagram of the heating element fixing block of the heating component in one direction;

[0056] Figure 21 for Figure 20 A three-dimensional schematic diagram of the heating element fixing block in another direction;

Detailed Implementation Methods

[0057] To facilitate understanding of the present invention, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" or "attached to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as "connected to" another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "upper," "lower," "left," "right," "inner," "outer," and similar expressions used in this specification are for illustrative purposes only.

[0058] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is 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.

[0059] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0060] In this embodiment of the invention, "installation" includes fixing or restricting a component or device to a specific position or place by means of welding, screwing, snapping, bonding, etc. The component or device may remain stationary in the specific position or place or may move within a limited range. After the component or device is fixed or restricted to the specific position or place, it may or may not be disassembled. This embodiment of the invention does not impose any restrictions.

[0061] One embodiment of the present invention provides an aerosol generating device 100, please refer to [link / reference]. Figures 1-2 The diagrams show a three-dimensional view of the aerosol generating device 100 provided in one direction and an exploded view from another perspective.

[0062] 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 shape and has a proximal end 110 and a distal end 120 opposite each other along its length. The mouthpiece 10 is located 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. The main body 20 is used to contain a capsule 40, which encapsulates an evaporable precursor material. The main body 20 is used to heat the evaporable precursor material in the capsule 40, thereby causing at least one component of the evaporable precursor material to volatilize and form an aerosol that can be inhaled by the user. The bottom cover 30 is located at the distal end 120 of the main body and is separable from or can be attached to the main body 20. When a user needs to use the aerosol generating device 100, the bottom cover 30 can be separated from the main body 20, the capsule 40 can be inserted into the main body 20 from the distal end 120, and then the bottom cover 30 can be put back into the main body 20 to start the aerosol generating device 100. The main body 20 will then begin to heat the capsule 40 to generate an aerosol that can be inhaled by the user. 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 needs to be used, 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 evaporable precursor material of the capsule 40 has been used up, the capsule 40 can be directly removed from the main body 20.

[0063] It is worth noting that, as an implementable example, the evaporable precursor material can be a solid or semi-solid herbal material, such as tobacco or herbs. Suitable sources of herbal materials can be natural herbs obtained without processing or with minimal processing and then dried; preferably, the herbal material does not contain additives. The herbs can be a single herb or a mixture of different herbs to obtain, for example, a unique combination of flavors, aromas, and / or active substances. The evaporable precursor material can also be a paste, primarily composed of extracts or derivatives of such tobacco or herbal materials. The embodiments of the present invention are not limited to this type of material for the evaporable precursor material, as long as it satisfies the requirement that at least one component of the evaporable precursor material can volatilize to produce an inhalable aerosol under certain temperature conditions.

[0064] It should be noted that the evaporable precursor material can also be placed in the main body 20 without capsule encapsulation. For example, the evaporable precursor material can be placed directly in the main body 20, and the main body 20 can directly heat the evaporable precursor material.

[0065] The above-mentioned suction nozzle 10 includes a fixed end connected to 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 suction nozzle air outlet holes 11 can be set according to specific circumstances. The present invention does not limit this. In this embodiment, the number of suction nozzle air outlet holes 11 is preferably set to three. The nozzle 10 is preferably made of high-temperature resistant plastic or silicone material. For example, using heat-insulating material is more suitable. The nozzle 10 is connected to the body 20 by an interference fit. For example, if the nozzle 10 is made of silicone, the nozzle 10 is inserted into the proximal end of the body 20 by squeezing. Since silicone has a certain elastic recovery force, after being inserted into the body 20, the silicone recovers its elasticity and tightly abuts against the body 20, thus fixing the nozzle 10 to the body 20. When it is necessary to remove the nozzle cover, the nozzle 10 can be pulled out of the body 20 by force. In this way, the nozzle 10 can be separated from the body 20. It is understood that in other embodiments of the present invention, the nozzle 10 and the body 20 can also adopt other detachable connection methods, such as snap, thread or magnetic connection methods. It is only necessary for the nozzle 10 and the body 20 to be detachably connected. Of course, the nozzle 10 can also be set to a fixed connection method that is inseparable from the body 20.

[0066] For subject 20 mentioned above, please refer to Figures 3-4 The diagram shows a three-dimensional view of the main body 20 from one direction and an exploded view from another perspective. The main body 20 includes a shell 21, a fixing frame 22, a power supply 23, a control board 24, a smoke guide tube 25, a heating component 26, and a support frame 27. The fixing frame 22 is fixedly connected to the inner wall of the shell 21. The proximal end 110 of the shell 21 defines a first accommodating cavity 211, and at least a portion of the mouthpiece 10 is accommodated in the first accommodating cavity 211 and fixed to the shell 21. The power supply 23, the control board 24, and the smoke guide tube 25 are mounted on the fixing frame 22 along the length of the fixing frame 22 to make full use of the 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 to the inner wall of the shell 21. The heating component 26 is fixed between the fixing frame 22 and the support frame 27 and is used to accommodate the capsule 40 and heat the capsule 40. The control board 24 is electrically connected to the power supply 23 and the heating component 26, so that the control board 24 controls the heating component 26 to heat; the smoke guide tube 25 is used as a channel for aerosol to flow from the far end 120 to the near end 110 of the main body 20, so that the aerosol generated by the heating of the evaporable precursor material can flow through the aerosol channel to the mouthpiece outlet 11.

[0067] Please continue reading. Figures 5-6The diagram shows two perspective views of the mounting bracket from different directions. The mounting bracket 22 includes a support column 221. A first airflow gap forming portion 222 extends from the end of the support column 221 near the proximal end 110 of the main body. The first airflow gap forming portion 222 is generally a cylindrical structure. It has an upper surface 2221 near the proximal end 110 of the main body 20 and a corresponding lower surface 2222. The upper surface 2221 and the mouthpiece 10 form a first airflow gap 222a, which is connected to the air outlet 11 of the mouthpiece 10. The first airflow gap forming portion 222 has 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 is the air outlet of the aerosol channel, from which aerosol escapes into the first airflow gap 222a.

[0068] The support column 221 extends along its length to a fixing bracket connection 223 near the far end 120 of the main body. The fixing bracket connection 223 includes a bottom wall 2231 and a side wall 2232. The bottom wall 2231 and the side wall 2232 enclose a hollow structure with one open end facing the bottom cover 30. The side wall 2232 is provided with a fixing connector 2232a. A matching fixing bracket connection (not shown) is provided at a corresponding location on the inner wall of the housing 21. The fixing bracket 22 can be installed on the inner wall of the housing 21 through the fixing connector 2232a. The bottom wall 2231 has a second through hole 2231a and a third through hole 2231b. The other end of the smoke guide tube 25 is connected to the second through hole 2231a and extends to the bottom cover 30, so that the aerosol generated by the heating component 26 can escape from the second through hole 2231a through the smoke guide tube 25, the first airflow gap 222a and the mouthpiece outlet 11 for the user to inhale.

[0069] The bottom wall 2231 has a heating component receiving portion 2233 axially arranged around the third through hole 2231b towards the bottom cover 30. The heating component receiving portion 2233 is a through groove with openings at both ends, defining a second receiving cavity 2233a. The second receiving cavity 2233a communicates with the third through hole 2231b. The heating component 26 is received in the second receiving cavity 2233a and abuts against the inner wall of the heating component receiving portion 2233. It should be noted that, in order to prevent the heat generated by the heating component 26 from being transferred to the plastic material inside the main body 20, causing the plastic material inside the main body to deform due to high temperature, the heating component receiving portion 2233 is made of heat-insulating material to reduce the heat transfer of the heating component 26.

[0070] For the aforementioned support frame 27, please refer to Figures 7-9The diagram shows a three-dimensional view of the aerosol device's concealed main housing from one direction and two three-dimensional views of the support frame from two different directions. The support frame 27 includes a bottom wall 271 and a side wall 272. The side wall 272 abuts against the side wall 2232 of the fixed connection part 223. The bottom wall 271 and the side wall 272 enclose a hollow cylindrical structure with one open end, the open end facing the fixed connection part 223 of the fixed frame. The side wall 271 is provided with a support frame fixing connector 273. The support frame 27 is installed on the inner wall of the housing 21 through the fixing connector 273. A fourth through hole 2711 is provided on the bottom wall 271, which connects the second accommodating cavity 2233a and the third through hole 2231b. The capsule 40 can be received in the heating assembly 26 through the fourth through hole 2711.

[0071] The bottom wall 271 is equipped with a magnetic suction element 2712 and a ball-head plunger 2713. The magnetic suction element 2712 and the ball-head plunger 2713 are used to achieve a detachable connection between the bottom cover 30 and the support frame 27. After the capsule 40 is inserted into the main body 20, the bottom cover 30 is put back into the main body 20, and the support frame 27 fixes the bottom cover 30 through the magnetic suction element 2712 and the ball-head plunger 2713. Since the magnetic suction element 2712 may experience a decrease in magnetic attraction or failure at high temperatures, it is necessary to add a fixing method of the ball-head plunger 2713 to ensure effective fixation between the bottom cover 30 and the support frame 27. It is understood that other methods can also be used to fix the bottom cover 30 and the support frame 27. This embodiment of the invention does not limit this, as long as the detachable connection function between the bottom cover 30 and the support frame 27 is achieved. The bottom wall 271 is also 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. With the setting 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, which can be conveniently cleaned through the air inlet port after the bottom cover 30 is removed to clean the residual e-liquid or tobacco residue in the smoke guide tube 25.

[0072] Furthermore, since the user needs to remove the bottom cover 30 when inserting or removing the capsule 40, in order to prevent the bottom cover 30 from being lost in the process, the bottom wall 271 is also provided with a shaft hole 2715. The shaft hole 2715 is used to cooperate with the bottom cover 30 so that the bottom cover 30 and the support frame 27 remain connected after the bottom cover 30 is removed.

[0073] Furthermore, in order to ensure that the aerosol generating device flows according to the preset airflow channel, it is necessary to seal the gaps when the fixing frame 22 and the support frame 27 are assembled on the housing 21 to seal the inner cavity of the main body 20 and prevent the airflow from flowing out of the gaps. In this embodiment, the aerosol device is provided with sealing elements, 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 disposed on the first airflow gap forming part 222 to seal the assembly gap between the first airflow gap forming part 222 and the inner wall of the housing 21; the second sealing ring 2234 is disposed on the fixing frame fixing connection part 223 to seal the assembly gap between the fixing frame fixing connection 223 and the inner wall of the housing 21; the third sealing ring 274 and the fourth sealing ring 275 are disposed on the support frame 27 to seal the assembly gap between the support frame 27 and the inner wall of the housing 21.

[0074] For the aforementioned bottom cover 30, please refer to [link / reference needed]. Figures 10-11 The diagram shows a three-dimensional view of the bottom cover from one direction and an exploded view from another perspective. The bottom cover 30 includes a bottom wall 31 and a side wall 32. The side wall 32 has a fixing hole 321, which is used to fix the bottom cover to the ball plunger 2713 of the support frame 27. The bottom wall 31 is provided with a magnetic component 311, a bottom cover guide component 312, and a connecting rod 313. The magnetic component 311 is used to magnetically fix the bottom cover to the magnetic component 2712 of the support frame 27. Through the magnetic component 311 and the fixing hole 321, the bottom cover 30 is detachably fixed to the support frame 27. The connecting rod 313 is used to cooperate with the shaft hole 2715 of the support frame 27 so that the bottom cover 30 remains connected to the main body 20 after it is removed from the main body 20. The bottom cover guide component 312 is used to guide the aerosol escaping from the heating component 26 to the bottom cover 30 to the smoke guide pipe 25.

[0075] 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 within the shaft hole 2715. The other end of the connecting rod 313 is provided with a retaining ring 3131, which is fitted onto the other end of the connecting rod 313. The diameter of the retaining ring 3131 is larger than the diameter of the shaft hole 2715, so that after 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 through the connecting rod 313. This method prevents the bottom cover 30 from being easily lost when it is removed.

[0076] It is understandable that after the bottom cover 30 is removed from the main body 20, the way in which the bottom cover 30 remains connected to the main body 20 is not limited to this. Other methods can be used in other embodiments of the present invention. For example, the retaining ring 3131 can be omitted from the connecting rod 313. The other end of the connecting rod 313 is axially fixed in the shaft hole 2715 but can rotate circumferentially in the shaft hole 2715. This allows the bottom cover 30 to rotate horizontally about the connecting rod 313. When it is necessary to insert the capsule 40 into the main body 20, it is only necessary to turn the bottom cover 30 open horizontally and then turn it back in the opposite direction. Alternatively, a rotating shaft (not shown) is provided on the support frame 27. The two ends of the rotating shaft are movably connected to the bottom cover 30, so that the bottom cover 30 can rotate vertically about the rotating shaft. When it is necessary to insert the capsule 40 into the main body 20, it is only necessary to turn the bottom cover 30 open vertically, and the bottom cover 30 and the main body 20 can still remain connected through the rotating shaft.

[0077] 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 has a first air inlet 3121, a first air outlet 3122, and a through groove 3123. The through groove 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 the aerosol generated by the heating component 30 to enter the bottom cover 30 through the first air inlet 3121, then enter the first air outlet 3122 through the through groove 3123, and finally escape from the bottom cover 30 to the air inlet port of the smoke guide pipe 25. It should be noted that, in order to ensure that the aerosol escaping from the heating component 26 flows to the smoke guide tube 25 along a preset airflow path, the bottom cover guide 312 is preferably made of silicone. The silicone material can act as a seal, allowing the aerosol escaping from the heating component 26 to flow to the smoke guide tube 25 along the preset airflow path. Because the bottom cover guide 312 can be separated from the bottom cover 30, it is easy to clean any residual e-liquid when the aerosol generated by the heating component 30 flows through the bottom cover guide 312. Simply remove the bottom cover 30 from the main body and then disassemble the bottom cover guide 312 from the bottom cover 30 for separate cleaning.

[0078] Furthermore, the bottom cover 30 is also provided with a second air inlet 34 for the aerosol generating device 100. When the user uses the aerosol generating device 100 for suction, external air first enters the aerosol generating device through the air inlet 34. There is at least one second air inlet 34. In this embodiment of the invention, the number of second air inlets 34 is preferably set to two, and the two second air inlets 34 are opened opposite each other at the connection of the two side walls 32 of the bottom cover 30.

[0079] With the bottom cover 30 in place, since the first air inlet 3121 of the bottom cover 30 connects to the fourth through hole 2711 of the support frame 23, and the capsule 40 is housed in the heating assembly 26 through the fourth through hole 2711, when it is necessary to clean the 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. In addition, 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 will retain the e-liquid or oil stains that the aerosol has flowed through. In conjunction with the above description, 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 e-liquid or oil stains in the bottom cover guide 312 or the aerosol channel, the bottom cover 30 can be directly removed from the main body 20 for cleaning, making it more convenient for users to clean the aerosol generating device 100.

[0080] For the heating component 26 mentioned above, please refer to [link / reference needed]. Figure 12 The heating component 26 includes a base 261, a heating element 262 and a heating element fixing member 263. The heating element 262 is fixed in the base 261 by the heating element fixing member 263.

[0081] Please continue reading. Figures 13-18 The substrate 261 includes a bottom wall 2611 and an open end 2612, and a side wall 2613 extending axially between the bottom wall 2611 and the open end 2612. The open end 2612 faces the bottom cover 30. The bottom wall 2611 and the side wall 2613 together 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 fastener 263 fixes the heating element 262 in the installation space 2616. The heating chamber 2614 and the installation space 2616 are distributed on both sides of the third through hole 2231b of the fixing bracket fixing connection part 223. The side wall 2613 of the base 261 abuts against the inner wall of the heating assembly receiving part 2233, thereby fixing the base 261 relatively in the radial direction. The bottom wall 2611 of the base 261 has a through hole 2611a, through which the heating element 262 is fixed in the installation space 2616.

[0082] Furthermore, the base 261 also includes a first abutting portion 2617 and a second abutting portion 2618, which abut against the bottom wall 2231 of the fixing frame connecting portion 223 and the support frame 27, respectively, thereby fixing the base 261 relatively in the axial direction. In a specific implementation, the first abutting portion 2617 and the second abutting portion 2618 are protruding structures extending radially away from the base from the side wall 2613. It is understood that the axial fixing of the base 261 can also employ other methods well known to those skilled in the art, and this embodiment of the invention does not limit this.

[0083] Furthermore, in order to introduce external air into the capsule 40 so that the airflow can carry away the aerosol generated by the heated capsule 40 for the user to inhale, the capsule 40 used in conjunction with the aerosol generating device 100 provided in this embodiment includes a shell. The shell has a first end 41, a second end 42, and a sidewall 43 extending axially between the first end 41 and the second end 42. When the capsule 40 is housed in the heating chamber 2614, the sidewall 43 abuts against the inner wall of the sidewall 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 opening end 2612 of the base 261. The first end 41 has a capsule air inlet 411 and an insertion hole 412 for inserting the heating element 262 into the capsule 40. The second end 42 has a capsule air outlet 421, which is sealed and connected to the air inlet 3121 of the bottom cover guide 312. The sidewall 43 has... A 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 intake path 4311. Since the side wall 43 of the capsule 40 is in contact with the inner wall of the side wall 2613 of the base 261, the air entering from the air inlet 34 of the bottom cover 30 can only continue to flow from the second end 42 to the first end 41 through the first air intake path 4311, and then enter the capsule 40 through the capsule air inlet 411 at 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, escaping from the capsule air outlet 421 to the bottom cover 30. The air entering the capsule 40 through the capsule air inlet 411 and flowing through the evaporable precursor material to the capsule air outlet 421 can be called the second air intake path. Combining the aforementioned airflow path, the airflow channel of the entire aerosol generating device 100 is described as follows:

[0084] When using the aerosol generating device 100 containing capsule 40 for inhalation, external air enters the bottom cover 30 through the second air inlet 34, then flows from the bottom cover 30 along the first air inlet path 4311 to the capsule air inlet 411, and then escapes to the bottom cover 30 through the second air inlet path. Next, it enters the aerosol channel, i.e. the air inlet port of the smoke guide tube 25, from the bottom cover guide 312 of the bottom cover 30, and then flows into the first airflow gap 222a from the air outlet port of the smoke guide tube 25. Then, it is supplied to the user for inhalation through the mouthpiece outlet 11 from the first airflow gap 222a. The airflow channel is roughly in the shape of an "N".

[0085] It is understandable that the groove 431 may not be provided on the capsule 40 to construct the first air intake path 4311. For example, the groove may be provided on the inner wall of the side wall 2613 of the base 261 that abuts against the capsule 40 to construct the first air intake path 4311. Alternatively, the groove may not be provided on either the capsule 40 or the inner wall of the side wall 2613 of the base 261. When the capsule 40 is housed in the heating chamber 2614, there is a certain gap between the capsule 40 and the inner wall of the side wall 2613 of the base 261. This gap can serve as the first air intake path 4311. This embodiment of the invention does not limit this. It is only necessary to allow air to flow from the second end 42 of the capsule 40 to the first end 41 and enter the capsule 40 through the capsule air intake hole 411 of the first end 41.

[0086] It should be noted that the capsule 40 may not have a capsule air inlet 411 and a capsule air outlet 421. For example, the capsule shell can be made of a breathable material, and the air permeability of the material allows air to enter and exit the capsule 40. Alternatively, the capsule 40 may not have a separate capsule air inlet 411, and the insertion hole 412 can also be used as the capsule air inlet. This embodiment of the invention does not limit the way the capsule is inlet and outlet, as long as external air can enter the capsule 40 and pass through the evaporable precursor material, and the aerosol generated by the heated evaporable precursor material is carried out of the capsule 40 and into the bottom cover guide 312 of the bottom cover 30.

[0087] Please see Figures 19-21 Simultaneously combined Figure 12 and Figure 13The heating element 262 is disposed in the heating chamber 2614 and includes a fixed end 2621 and a corresponding 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 along the axial direction of the heating chamber toward the opening end 2612 of the base 261. The heating element 262 is configured such that when the capsule 40 is housed 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 evaporable precursor material encapsulated inside the capsule 40, causing at least a portion of the evaporable precursor material to volatilize and generate an aerosol that can be inhaled by the user. In this heating method, since the heating element 262 is inserted into the evaporable precursor material in the capsule 40, the heating element 262 can radiate heat to the surrounding evaporable precursor material from the center and heat the evaporable precursor material. Compared with the existing peripheral heating method, in which the heating element is set on the outer wall of the heating chamber and the heat is transferred to the capsule through the outer wall of the heating chamber, this method can make the evaporable precursor material in the capsule 40 more uniformly heated.

[0088] To ensure optimal heating of the heating element 262 inserted into the capsule 40 and to ensure sufficient and uniform heating of the evaporable precursor material of the capsule 40, the heating element 262 is preferably constructed in an elongated shape. This elongated shape increases the resistance of the internal conductors of the heating element, thereby improving heating efficiency. Alternatively, the heating element 262 can be positioned at the center of the heating chamber 2614. This method facilitates the insertion of the heating element 262 into the center of the capsule 40 for central heating, which allows for more uniform heating of the evaporable precursor material of the capsule 40.

[0089] In some embodiments, the heating element 262 can be a resistive heating element, such as a ceramic heating element. In this case, the heating element 262 needs to be provided with heating electrodes (not shown), which are electrically connected to the control board 24 to control the heating element 24 to generate heat. The heating element 262 can also be an inductive heating element, in which the conductor in the heating element 262 senses current and generates heat. For example, in this embodiment, the heating element 262 is an electromagnetic induction heating element. 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 abutment portion 2617 and the second abutment portion 2618 of the base 261. After the electromagnetic induction coil is energized, it generates an alternating magnetic field. Under the action of the alternating magnetic field, the heating element 262 generates corresponding eddy currents, thereby causing the conductor in the heating element 262 to heat up.

[0090] The heating element fixing component 263 includes a heating element fixing block 2632, a heating element silicone 2633, and a connector 2634. The fixing end 2621 of the heating element 262 is provided with a heating element base 2623, which abuts against the heating element fixing block 26321 and the heating element silicone 2633. The connector 2634 is snapped into the extension wall 2615 of the base 261 and abuts against the heating element silicone 2633.

[0091] Specifically, the fixing block 2632 includes a base 2632a and a protrusion 2632b extending axially along the base 2632a. The protrusion 2632b penetrates the through hole 2611a of the base 261 and extends into the heating chamber 2614. The base 2632a abuts against the through hole 2611a of the base 261. The protrusion 2632b has a through hole 2632c, and the base 2632a has a through hole 2632d. The through hole 2632d connects to the through hole 2632c. The diameter of the through hole 2632d is larger than that of the through hole 2632c, thereby forming a fixing surface 2632f between the base 2632a and the protrusion 2632b. The heating element base 2623 passes through the through hole 2632c and is upside down on the fixing surface 2632f. The heating element silicone 2633 is tightly fitted onto the heating element base 2623 through the through hole 2632d. The heating element silicone 2633 and the heating element base 2623 are in soft contact, effectively preventing the heating element 262 from becoming loose. Meanwhile, the extension wall 2615 of the base 261 is provided with a plurality of insertion holes 2615a, and the insertion member 2634 is provided with a matching insertion part 2634a. The insertion part 2634a is inserted into the insertion hole 2615a of the extension wall 2615 to fix the insertion member 2634, thereby fixing the heating element 262 by means of commercial application. It should be noted that the fixing method of the heating element 262 is not limited to this. Other fixing methods can be used in other embodiments of the present invention, as long as the heating element 262 is fixed.

[0092] It is worth noting that when the capsule 40 is housed in the heating chamber 2614, since the protrusion 2632b of the fixing block 2632 extends into the heating chamber 2614 through the through hole 2611a of the base 261, a second airflow gap 2614a is formed between the protrusion 2632b of the fixing block 2632 and the first end 41 of the capsule 40. External air enters the second airflow gap 2614a from the first air intake path 4311, and then enters the capsule 40 from the second airflow gap 2614a through the capsule air intake hole 411.

[0093] Furthermore, to prevent the heating element 262 from rotating radially, the fixing block 2632 is also provided with a boss 2632e, which is arc-shaped. The heating element base 2623 abuts against the boss 2632e, preventing the heating element 262 from rotating radially. Additionally, to prevent the high-temperature heat from the heating element 262 from being transferred to the plastic material on the mounting bracket 22, causing deformation of the plastic material due to high temperature, the heating element fixing block 2632 can be insulated, for example, it can be an insulated ceramic body.

[0094] One embodiment of the present invention also provides an aerosol generation system, the system comprising the aerosol generation device 100 and capsule 40 as described in the above embodiments.

[0095] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; under the concept of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of the present invention as described above, which are not provided in detail for the sake of brevity; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An aerosol-generating device, characterized by, The aerosol generating device comprises: a main body having opposite proximal and distal ends, the main body extending between the proximal and distal ends to form an aerosol passage; a mouthpiece having a mouthpiece air outlet hole at the proximal end; a heating assembly disposed at the distal end of the main body, the heating assembly comprising a base and a heating element, the base defining a heating chamber having an open end for receiving a vaporizable precursor material, the heating element for heating the vaporizable precursor material to generate an aerosol; and a bottom cover removably or movably connected to the distal end of the main body, the bottom cover being capable of opening or closing the open end of the heating chamber, wherein the bottom cover is configured to at least partially abut the heating chamber so as to guide the aerosol escaping from the open end into the aerosol passage; the bottom cover comprises a bottom cover flow guide, the bottom cover flow guide being in communication with the heating chamber and the aerosol passage, the bottom cover flow guide defining a first air inlet hole, a first air outlet hole, and a through slot in communication with the first air inlet hole and the first air outlet hole, the first air inlet hole being in communication with the heating chamber, and the first air outlet hole being in communication with the aerosol passage.

2. The aerosol-generating device of claim 1, wherein, The bottom cover defines at least one second air inlet hole in communication with the outside, the second air inlet hole being in communication with the heating chamber.

3. The aerosol-generating device of claim 1, wherein, When at least a portion of the bottom cover is separated from the main body, an air inlet port of the aerosol passage can be exposed.

4. The aerosol-generating device of claim 1, wherein, The bottom cover defines a receiving area adapted to receive the bottom cover flow guide.

5. The aerosol-generating device of claim 1, wherein, The bottom cover flow guide comprises a silica gel piece.

6. The aerosol-generating device of claim 1, wherein, The main body comprises a fixed frame and a support frame, the support frame being supported between the bottom cover and the fixed frame.

7. The aerosol-generating device of claim 6, wherein, The main body comprises a housing, the fixed frame and the support frame being provided with a sealing member, the sealing member being sealed with an inner wall of the housing.

8. The aerosol-generating device of claim 7, wherein, The fixed frame comprises a support column and a first air flow gap forming portion located near the proximal end of the main body, the first air flow gap forming portion and the mouthpiece defining a first air flow gap.

9. The aerosol-generating device of claim 1, wherein, The base comprises a bottom wall and a side wall extending from the bottom wall to the open end, the bottom wall and the side wall together defining the heating chamber. 10.The aerosol-generating device of claim 1, wherein, At least a portion of the aerosol passage extends longitudinally in parallel with the heating chamber. 11.The aerosol-generating device of claim 1, wherein, At least a portion of the aerosol passage crosses the heating chamber and is in fluid communication with the open end.

12. An aerosol-generating device comprising: The aerosol generating device comprises: a main body having opposite proximal and distal ends, the main body extending between the proximal and distal ends to form an aerosol passage; a mouthpiece having a mouthpiece air outlet hole at the proximal end; a heating assembly disposed at the distal end of the main body, the heating assembly comprising a base and a heating element, the base defining a heating chamber having an open end for receiving a vaporizable precursor material, the heating element for heating the vaporizable precursor material to generate an aerosol; and a bottom cover removably or movably connected to the distal end of the main body, the bottom cover being capable of opening or closing the open end of the heating chamber; wherein at least a portion of the aerosol passage crosses the heating chamber and is in fluid communication with the open end, and the bottom cover is configured to expose an air inlet port of the aerosol passage when the open end is opened.

13. An aerosol-generating system comprising: An aerosol-generating device and a capsule containing a vaporizable precursor material for use with the aerosol-generating device, wherein The aerosol-generating device comprises the aerosol-generating device of any one of claims 1 to 11, the heating element being configured to heat the vaporizable precursor material in the capsule to generate an aerosol.

14. An aerosol-generating system according to claim 13, wherein, A first air inlet path is formed between the outer wall of the capsule and the inner wall of the base when the capsule is received in the heating chamber.

15. An aerosol-generating system according to claim 14, wherein, The inner wall of the base or the outer wall of the capsule defines a recess that forms the first air inlet path.

16. The system of claim 14, wherein, A second air inlet path is formed within the capsule in air flow communication with the first air inlet path and in an opposite direction, the vaporizable precursor material being filled in the second air inlet path.

17. An aerosol-generating system according to claim 16, wherein, The capsule has a first end defining a capsule air inlet aperture and a second end defining a capsule air outlet aperture, the second air inlet path being defined between the capsule air inlet aperture and the capsule air outlet aperture.

18. An aerosol-generating system according to claim 14, wherein, The heating assembly further comprises a heating element holder defining a second air flow gap with the capsule, the first air inlet path communicating with the capsule air inlet aperture through the second air flow gap.

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