CN113841941A

CN113841941A - Aerosol-generating system and article thereof

Info

Publication number: CN113841941A
Application number: CN202111241571.0A
Authority: CN
Inventors: 张森林; 牛彦明
Original assignee: Shenzhen Woody Vapes Technology Co Ltd
Current assignee: Shenzhen Woody Vapes Technology Co Ltd
Priority date: 2021-10-25
Filing date: 2021-10-25
Publication date: 2021-12-28

Abstract

The invention relates to an aerosol generating system and an aerosol generating product, wherein the aerosol generating product comprises a generating section, a generating section and a control section, wherein the generating section comprises a base material and a porous structure body sleeved on the base material; the cooling section is provided with an airflow channel, and aerosol generated by heating the base material can directly flow into the airflow channel and flow into the airflow channel after passing through the porous structure; the sucking section is arranged at one end of the cooling section, which is far away from the generating section, and is communicated with the airflow channel; and the outer cladding is wrapped on the porous structure body, the cooling section and the suction section. Such an aerosol-generating article is effective in reducing the amount of heat within the aerosol-generating article and preventing excessive temperatures at the outer wall of the aerosol-generating device and at the mouthpiece.

Description

Aerosol-generating system and article thereof

Technical Field

The present invention relates to the field of aerosol generating devices, and in particular to aerosol generating systems and articles thereof.

Background

Currently, aerosol-generating systems typically comprise an aerosol-generating device and an aerosol-generating article, the aerosol-generating article being inserted into the aerosol-generating device and heated by a heating element within the aerosol-generating device to generate an aerosol. However, when the heating element heats the aerosol-generating article, the heat generated is typically conducted to the outer wall of the aerosol-generating article and thus to the outer wall of the aerosol-generating device. At the same time, the heat generated also flows with the external air flow to the mouthpiece of the aerosol-generating article. This situation can cause the outer wall of the aerosol generating device and the mouthpiece of the aerosol generating article to be at too high a temperature during use, which can affect the experience of use.

In addition, in the conventional aerosol generating device, the control board generally adopts a passive heat dissipation manner. The heat in the aerosol generating article is also very easily transferred to the control panel position of the aerosol generating device, which in turn results in the control panel temperature rising easily and quickly, thereby shortening the time length of single use of the aerosol generating device and affecting the user experience.

Disclosure of Invention

In view of the above, it is desirable to provide an aerosol-generating system and an aerosol-generating product, which can effectively reduce the amount of heat inside the aerosol-generating product and prevent the temperature of the outer wall of the aerosol-generating device and the temperature of the mouthpiece of the aerosol-generating product from becoming too high, in order to solve the problem that the temperature of the outer wall of the aerosol-generating device and the mouthpiece of the aerosol-generating product is likely to become too high when the aerosol-generating product is used.

An aerosol-generating article comprising:

the generating section comprises a base material and a porous structure body sleeved on the base material;

the cooling section is provided with an airflow channel, and aerosol generated by heating the base material can directly flow into the airflow channel and flow into the airflow channel after passing through the porous structure;

the sucking section is arranged at one end of the cooling section, which is far away from the generating section, and is communicated with the airflow channel; and

and the outer coating is wrapped on the porous structure body, the cooling section and the sucking section.

The aerosol-generating product is inserted into an aerosol-generating device during actual use, and the aerosol-generating device has a heat-generating member which can be inserted into a base material and heats the base material to generate aerosol on the base material. Part of aerosol generated by heating can flow into the porous structure body on the outer side of the base material, external air can flow into the porous structure body from the bottom of the porous structure body, and heat of the aerosol entering the porous structure body can be taken away through flowing of the external air, so that heat conducted to the outer cladding layer by the aerosol can be effectively reduced. The porous structure may also filter aerosols, liquid materials resulting from heating of the substrate, and condensate resulting from exposure of the aerosol to cooler outside air. Part aerosol directly flows into the airflow channel along with the external gas from the base material, and the aerosol after being cooled and filtered by the porous structure also flows into the airflow channel, and the aerosol can be cooled in the flowing process of the suction nozzle after entering the airflow channel, and finally the aerosol can be sucked out by the suction nozzle of the suction section, so that the heat inside the aerosol generating product can be effectively reduced, the overhigh temperature at the suction nozzle is prevented, the heat transferred to the aerosol generating device by the aerosol is reduced, and the temperature of the outer wall of the aerosol generating device cannot be overhigh.

In one embodiment, the porous structure is a metal foam body or a porous ceramic body; and/or the base material and the porous structure body are in a sleeve shape with a hollow inner part, and the porous structure body is sleeved on the circumferential outer side of the base material.

In one embodiment, the cooling section comprises a cooling body, and the airflow channel is arranged in the cooling body in a straight line or spiral mode along the aerosol flow direction. The linear or spiral airflow channel can prolong the flow stroke of the aerosol and ensure that the heat of the aerosol can be further reduced.

In one embodiment, the cooling device further comprises a heat insulation piece sleeved on the porous structure body and the outer side of the cooling section; and/or the length of the porous structure is greater than or equal to the length of the substrate. The heat insulation piece can further insulate the heat emitted outwards by the porous structure body and the cooling section, and the outer cladding layer and the sucking section are prevented from being overhigh in temperature.

In one embodiment, the aerosol inhalation device further comprises a one-way valve arranged in the inhalation section, and the one-way valve is opened when the aerosol is inhaled out from the top end of the inhalation section; when the suction section does not generate suction, the one-way valve is closed. The one-way valve can ensure that the aerosol can only be sucked out from the sucking section in one way, but can not be reversely sucked in from the sucking section. When a user does not suck, the one-way valve can seal the aerosol inside the aerosol generating product, so that external gas cannot enter the aerosol generating product to dilute the aerosol, and the aerosol is full and high in concentration and purity.

In one embodiment, the temperature-reducing device further comprises a support and an explosion bead, the support is arranged in the suction section and provided with a suction channel communicated with the airflow channel, the explosion bead is arranged in the suction channel, and the one-way valve is arranged at one end, far away from the temperature-reducing section, of the support. The popping beads have various tastes, when the popping beads are crushed and the aerosol flows through, the heat of the aerosol can heat the popping beads to generate fragrant gas, the aerosol and the fragrant gas are mixed and sucked, the taste of the aerosol can be effectively adjusted, and the taste experience of a user in sucking is improved.

In one embodiment, the gas generator further comprises an end cap, wherein the end cap is abutted with one end of the generating section far away from the cooling section, the end cap is provided with a microporous structure, and external gas can flow into the substrate and the porous structure through the end cap. The end cover can be fixed to the substrate, prevents that the substrate from taking place the displacement in heating process, influencing the heating effect. The external gas can directly flow into the substrate through the end cover, and simultaneously, the external gas can also flow into the porous structure body from the microporous structure because the end cover has the microporous structure.

The invention also proposes an aerosol-generating system comprising: the aerosol-generating article and the aerosol-generating device as described above, wherein the aerosol-generating device has a heat generating member, and the aerosol-generating article is inserted into the aerosol-generating device such that the heat generating member is inserted into the base material. Since the aerosol-generating system comprises an aerosol-generating article as described above, the aerosol-generating system comprises at least all of the benefits described above. In addition, owing to reduced the heat that aerosol transmitted to aerosol generating device, can be so that aerosol generating device's outer wall can not seriously generate heat, the aerosol only a small amount of heat spills over the control panel in the aerosol generating device, the programming rate of control panel slows down, then need the heating of longer time just to make the temperature of control panel too high to aerosol generating device single use time has been prolonged, can be long-time continuous use even, and can not only single continuous use 3 to 5 minutes like among the prior art.

In one embodiment, the aerosol generating device comprises a main machine, the heating element is arranged in the main machine, an air inlet channel communicated with the outside is arranged in the main machine, and the air inlet channel is communicated with the generating section.

In one embodiment, the method comprises the following steps: the host comprises a shell, a first supporting seat and a first sealing element, wherein the first supporting seat is arranged in the shell, the air inlet channel is arranged in the shell, the heating element is positioned in one end of the shell, the first sealing element is sleeved on the first supporting seat and is abutted against the inner side wall of the shell, and the first sealing element is far away from the heating element compared with the air inlet channel; and/or the host computer includes shell, second supporting seat, mount pad and second sealing member, the second supporting seat is located in the shell, the mount pad is located in the second supporting seat, just generate heat the piece and locate the middle part of mount pad, be equipped with in the shell inlet channel, the second sealing member cover is located on the mount pad, just the second sealing member with second supporting seat inside wall butt, the mount pad middle part with inlet channel intercommunication, outside gaseous warp inlet channel the mount pad flows in the section of taking place.

Drawings

Figure 1 is a schematic structural view of a first embodiment of an aerosol-generating system according to the invention;

figure 2 is a schematic structural view of a second embodiment of an aerosol-generating system according to the present invention;

figure 3 is a schematic structural view of a first embodiment of an aerosol-generating article of the present invention;

figure 4 is a schematic structural view of a second embodiment of an aerosol-generating article of the present invention;

figure 5 is a schematic structural view of a third embodiment of an aerosol-generating article of the present invention;

figure 6 is a schematic structural view of a fourth embodiment of an aerosol-generating article of the present invention;

FIG. 7 is a schematic structural diagram of a first embodiment of a heat generating component according to the present invention;

fig. 8 is a schematic structural diagram of a second embodiment of the heat generating member of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

100. an aerosol-generating system; 20. an aerosol-generating article; 21. a cooling section; 22. a suction section; 221. A suction nozzle; 23. an outer cladding; 24. a substrate; 25. a porous structure; 26. a thermal insulation member; 27. a one-way valve; 271. a first movable valve; 272. a second movable valve; 28. a support; 281. an aspiration channel; 29. bead blasting; 210. an end cap; 30. an aerosol generating device; 31. a heat generating member; 32. a host; 321. a housing; 322. A first support base; 323. a first seal member; 324. a second support seat; 325. a mounting seat; 326. a second seal member; 327. a battery; 328. a vibration motor; 33. an intake passage.

Detailed Description

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. It is apparent that the specific details set forth in the following description are merely exemplary of the invention, which can be practiced in many other embodiments that depart from the specific details disclosed herein. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without any inventive step, are within the scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Referring to fig. 1 and 2, in one embodiment, an aerosol-generating system 100 includes: an aerosol-generating article 20 and an aerosol-generating device 30. The aerosol-generating device 30 has a heat generating member 31, the aerosol-generating article 20 being inserted in the aerosol-generating device 30 and the aerosol-generating article 20 being heated by the heat generating member 31 to generate an aerosol.

Referring to fig. 3-6, in one embodiment of the aerosol-generating article 20, the aerosol-generating article 20 comprises: a generation section, a cooling section 21, an aspiration section 22 and an outer cladding 23. The generation section comprises a substrate 24 and a porous structure 25 sleeved on the substrate 24. The substrate 24 may be a powdered substrate, a granular substrate, a compressed crumb substrate, or the substrate 24 may be in the form of a sheet or thread. The porous structure 25 may be a metal foam or a ceramic porous body, or a porous structure made of other materials. For example, the porous structure 25 may be nickel foam. The cooling section 21 has an airflow channel into which aerosol generated by heating the substrate 24 can flow directly and after passing through the porous structure 25. The sucking section 22 is arranged at one end of the cooling section 21 far away from the generating section, the sucking section 22 is communicated with the air flow channel, and the top end of the sucking section 22 is provided with a suction nozzle 221. The outer cladding 23 encapsulates the porous structure 25, the cooling section 21 and the aspiration section 22 to form a unitary structure.

Referring to fig. 1 and 2, in the aerosol-generating article 20, in actual use, the heat generating member 31 can be inserted into the substrate 24 and heat the substrate 24 to generate aerosol on the substrate 24. Part of aerosol generated by heating can flow into the porous structure 25 on the outer side of the substrate 24, and external air can flow into the porous structure 25 from the bottom of the porous structure 25, and the heat of the aerosol entering the porous structure 25 is taken away by the flow of the external air, so that the heat of the aerosol can be effectively prevented from being completely conducted to the outer cladding layer 23. Porous structure 25 may also filter aerosols, liquid materials generated by heating substrate 24, and condensation generated by aerosols when exposed to cooler outside air. Part of aerosol directly flows into the airflow channel from the base material 24 along with external air, and the aerosol after being cooled and filtered by the porous structure 25 also flows into the airflow channel, and the aerosol is cooled in the process of flowing to the suction nozzle 221 after entering the airflow channel, and finally the aerosol is sucked out by the suction nozzle 221 of the suction section 22, so that the internal heat of the aerosol generating product 20 can be effectively reduced, and the outer cladding 23 and the suction nozzle 221 are prevented from being overhigh in temperature. Of course, the air flow channel of the cooling section 21 may also be made of a phase change material, and a cooling effect may also be achieved.

In addition, due to the arrangement of the porous structure 25, the heat generated by heating the substrate 24 can be reduced from being directly dissipated into the aerosol generation device 30 from the side wall of the substrate 24, and the heat conducted into the aerosol generation device 30 can be much less than the heat dissipated from the side wall of the substrate 24 in the conventional arrangement. In this way, the aerosol generating device 30 does not receive too much heat, and a longer heating time is required to overheat the aerosol generating device 30, which prolongs the single use of the aerosol generating device 30 and enables a user to ingest the aerosol for a longer period of time.

Referring to fig. 3 to 6, in an embodiment, the substrate 24 and the porous structure 25 are in a hollow sleeve shape, the porous structure 25 is sleeved on the outer circumferential side of the substrate 24, and the length of the porous structure 25 may be greater than or equal to the length of the substrate 24, so that a structure in which the substrate 24 is completely wrapped by the porous structure 25 is formed, and the porous structure 25 can sufficiently filter and cool the aerosol generated by heating the substrate 24. It will be appreciated that the hollow portion of the substrate 24 may be used for mixing of the aerosol with external gas, particularly at the top of the hollow portion.

In another embodiment, the cooling section 21 includes a cooling body, and the airflow channel is disposed in the cooling body in a straight line or a spiral shape along the aerosol flow direction. The spiral airflow channel can prolong the flow stroke of the aerosol and ensure that the temperature of the aerosol can be further reduced. It should be noted that the cooling section 21 is an integral structure that can be selectively made of a phase-change material, and here, the cooling body is equivalent to a single phase-change material body, and the cooling section 21 is formed by the cooling body.

In the concrete operation, the cooling body can include a plurality of cell bodies, and a plurality of cell bodies splice each other, and the interval forms linear type air current passageway, also can be a plurality of cell bodies spiral winding, and the interval forms the air current passageway of screw-tupe. The unit body may have an air flow passage formed therethrough.

In another embodiment, the aerosol-generating article 20 further comprises a thermal insulation 26, the thermal insulation 26 being disposed around the porous structure 25 and the cooling section 21. The heat insulation member 26 can further insulate the heat emitted from the porous structure 25 and the cooling section 21, so as to prevent the outer cladding 23 and the suction section 22 from having too high temperature, and the heat can be conducted into the aerosol generating device 30 by the too high temperature of the outer cladding 23. The heat insulating material 26 may be a vacuum heat insulating tube, and the heat insulating effect is better.

Referring to fig. 4 to 6, the aerosol-generating article 20 further comprises a one-way valve 27, the one-way valve 27 being disposed within the suction section 22, and referring to fig. 4, when the aerosol is sucked out through the suction nozzle 221 of the suction section 22, the one-way valve 27 is opened to enable the aerosol to be sucked out through the suction nozzle 221; referring to figures 5 and 6, when the suction nozzle 221 of the suction section 22 is not generating suction, the one-way valve 27 is closed, preventing backflow of external air into the aerosol-generating article 20, and preventing heated aerosol from flowing out of the suction nozzle 221 when the user is not drawing. The non-return valve 27 ensures that the aerosol is only sucked out in one direction from the suction section 22, but not in the opposite direction from the suction section 22. When the user is not inhaling, the one-way valve 27 can seal the aerosol inside the aerosol generating article 20, so that external air cannot enter the aerosol generating article 20 to dilute the aerosol, and it is ensured that the aerosol is fuller and has higher concentration and purity.

Referring to fig. 4 and 5, to increase the mouthfeel of the puff, the aerosol-generating article 20 further comprises a holder 28 and a popping bead 29. The holder 28 is arranged in the suction section 22 and the holder 28 is provided with a suction channel 281 communicating with the air flow channel. The burst bead 29 is located within the holder 28 in the aspiration channel 281. The one-way valve 27 is provided on an end of the bracket 28 remote from the cooling section 21. The popping beads 29 have various tastes, when the popping beads 29 are crushed and the aerosol flows through, the heat of the aerosol can heat the fragrant substances in the popping beads 29 to generate fragrant gas, and the aerosol and the fragrant gas are mixed and sucked, so that the taste of the aerosol can be effectively adjusted, and the taste experience of the user in sucking is improved.

Referring to fig. 5 and 6, in practical application, the inside of the bracket 28 is hollow, and the top and bottom ends thereof are open to form a suction channel 281 penetrating up and down. The air inlet end of the suction channel 281 is communicated with the air flow channel, and the air outlet end of the suction channel 281 is communicated with the suction nozzle 221 of the suction segment 22. The one-way valve 27 can be snap-fitted on the top end of the holder 28, and the one-way valve 27 is arched towards the suction nozzle 221 of the suction section 22. In a specific arrangement, the check valve 27 includes a first movable valve 271 and a second movable valve 272 which are oppositely arranged, and both the first movable valve 271 and the second movable valve 272 are arched towards the suction nozzle 221 of the suction section 22. Referring to fig. 5 and 6, when the suction force of the suction nozzle 221 is not applied, the first movable valve 271 and the second movable valve 272 are connected to form a closed state; referring to fig. 4, when the suction nozzle 221 sucks, the first movable valve 271 and the second movable valve 272 tilt toward the suction nozzle 221, so that a channel is formed between the first movable valve 271 and the second movable valve 272. It is understood that the first movable valve 271 and the second movable valve 272 may further be provided with a filtering structure such as a filtering net, a filtering hole, etc., so as to further filter the sucked aerosol.

Referring to fig. 3-6, the aerosol-generating article 20 further includes an end cap 210, the end cap 210 abutting the bottom end of the substrate 24 and the porous structure 25, the end cap 210 having a microporous structure, and external gas flowing into the substrate 24 and the porous structure 25 through the end cap 210. The end cap 210 can fix the substrate 24, and prevent the substrate 24 from displacing during heating and affecting the heating effect. The external gas can directly flow into the substrate 24 through the end cap 210, and since the end cap 210 has a microporous structure, the external gas can also flow into the porous structure 25 from the microporous structure. In practice, the substrate 24 and the end cap 210 are both hollow, and the middle of the end cap 210 is connected to the middle of the substrate 24.

In practical operation, the end cap 210 can be disposed at the bottom of the porous structure 25, the porous structure 25 is disposed around the end cap 210, and the end cap 210 abuts against the bottom of the substrate 24. In addition, the end cap 210 can also absorb tar to prevent the residue from leaking to pollute the device.

Referring to fig. 1 and 2, the aerosol-generating device 30 includes a main body 32, the main body 32 has a heating cavity, the heat generating element 31 is disposed in the heating cavity, an air inlet passage 33 is disposed in the main body 32 and is communicated with the outside, the aerosol-generating product 20 can be inserted into the heating cavity, and the air inlet passage 33 is communicated with the heating cavity. External air can enter from the air inlet channel 33, flow into the base material 24 through the gap between the heat generating member 31 and the end cover 210, take out aerosol, and suck through the suction nozzle 221. After entering from the air inlet channel 33, the external air may flow into the porous structure 25 from the bottom of the end cap 210.

Referring to fig. 7 and 8, the heating member 31 may be a plate or a column, and when the heating member 31 is a column, the cross-sectional shape may be a circle, an ellipse, a triangle, a polygon or some irregular shapes. Referring to fig. 3, the shape of the hollow area at the center of the substrate 24 can be adapted to the sheet-shaped and column-shaped heating member 31.

Referring to fig. 1 and 2, in another embodiment, the host 32 includes a housing 321, a first supporting seat 322, and a first sealing member 323. The first supporting seat 322 is disposed in the housing 321. An air inlet passage 33 is disposed in the housing 321, the heat generating member 31 is disposed in one end of the housing 321, the first sealing member 323 is sleeved on the first supporting seat 322, and the first sealing member 323 abuts against an inner sidewall of the housing 321, and the first sealing member 323 is further away from the heat generating member 31 than the air inlet passage 33. By providing the first sealing member 323, the external air can be allowed to directly flow upward into the gap between the heat generating member 31 and the end cap 210 without being dispersed to flow to various positions within the case 321.

In addition to the above embodiments, the host 32 further includes a second supporting seat 324, a mounting seat 325, and a second sealing member 326. The second supporting seat 324 is disposed in the housing 321 and located in the middle of the first supporting seat 322. The mounting seat 325 is disposed in the second supporting seat 324, the heat generating element 31 is disposed in the middle of the mounting seat 325, the second sealing element 326 is sleeved on the mounting seat 325, the second sealing element 326 abuts against the inner side wall of the second supporting seat 324, a gap is formed in the middle of the mounting seat 325 and is communicated with the air inlet channel 33, and external air flows into the gap between the heat generating element 31 and the end cover 210 through the gap between the air inlet channel 33 and the middle of the mounting seat 325. By providing the second sealing member 326, the outside air flow is further concentrated to flow into the gap between the heat generating member 31 and the end cover 210 when flowing upward after flowing from the air intake passage 33.

The host 32 further includes a battery 327, a temperature detecting member, a vibration motor 328 and a control board, the battery 327 is disposed in the bottom end of the housing 321, the battery 327 is electrically connected to the heating member 31, the control board is disposed in the housing 321, and the heating member 31, the temperature detecting member and the control board are electrically connected. The temperature detector is provided in the case 321, and can detect the heating temperature of the heat generating member 31. The vibrating motor 328 is arranged on the first supporting seat 322, the vibrating motor 328 is electrically connected with the detecting piece and the battery 327, and when the detecting piece detects that the heating piece 31 reaches a certain heating temperature, the vibrating motor 328 is controlled to vibrate through the control panel to remind a user of sucking.

In addition, the heating temperature can be detected by monitoring the change of the resistance value of the heating member 31, and the heating member 31 presents different resistance values at different temperatures, which is equivalent to a thermistor, so that the temperature detection member does not need to be arranged separately.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, various changes, substitutions and alterations can be made without departing from the spirit and scope of the invention. Therefore, the protection scope of the present invention should be subject to the claims.

Claims

1. An aerosol-generating article, comprising:

2. An aerosol-generating article according to claim 1, wherein the porous structure is a foamed metal body or a porous ceramic body; and/or the base material and the porous structure body are in a sleeve shape with a hollow inner part, and the porous structure body is sleeved on the circumferential outer side of the base material.

3. An aerosol-generating article according to claim 1, wherein the cooling section comprises a cooling body, and the airflow channel is arranged through the cooling body in a straight or spiral pattern in the direction of aerosol flow.

4. An aerosol-generating article according to claim 1, further comprising a thermal insulation member disposed over the porous structure and the exterior of the temperature reduction section; and/or the length of the porous structure is greater than or equal to the length of the substrate.

5. An aerosol-generating article according to claim 1, further comprising a one-way valve disposed within the pull segment, the one-way valve opening when aerosol is pulled through a tip of the pull segment; when the suction section does not generate suction, the one-way valve is closed.

6. An aerosol-generating article according to claim 5, further comprising a holder disposed within the aspirating segment and having an aspirating channel in communication with the airflow channel, and a bursting bead disposed within the aspirating channel, the one-way valve being disposed on an end of the holder remote from the cooling segment.

7. An aerosol-generating article according to any one of claims 1 to 6, further comprising an end cap abutting an end of the generating section remote from the cooling section, the end cap having a microporous structure through which external gas can flow into the substrate and the porous structure.

8. An aerosol-generating system, comprising: an aerosol-generating article according to any one of claims 1 to 7 and an aerosol-generating device having a heat generating component, the aerosol-generating article being inserted onto the aerosol-generating device with the heat generating component inserted into the substrate.

9. An aerosol-generating system according to claim 8, wherein the aerosol-generating device comprises a main body, the heat generating member is disposed in the main body, an air inlet passage communicating with the outside is provided in the main body, and the air inlet passage communicates with the generating section.

10. An aerosol-generating system according to claim 9, comprising:

the host comprises a shell, a first supporting seat and a first sealing element, wherein the first supporting seat is arranged in the shell, the air inlet channel is arranged in the shell, the heating element is positioned in one end of the shell, the first sealing element is sleeved on the first supporting seat and is abutted against the inner side wall of the shell, and the first sealing element is far away from the heating element compared with the air inlet channel; and/or

The host computer includes shell, second supporting seat, mount pad and second sealing member, the second supporting seat is located in the shell, the mount pad is located in the second supporting seat, just generate heat the piece and locate the middle part of mount pad, be equipped with in the shell inlet channel, the second sealing member cover is located on the mount pad, just the second sealing member with second supporting seat inside wall butt, the mount pad middle part with inlet channel intercommunication, outside gaseous warp inlet channel the mount pad flows in the section of taking place.