Aerosol generating system and aerosol generating product

Abstract

The utility model discloses an aerosol generating system and an aerosol generating product, the aerosol generating product comprises a filtering section, an aerosol generating matrix section and a cooling section arranged between the filtering section and the aerosol generating matrix section, and the aerosol generating product also comprises a reflecting part, the reflecting part is at least partially arranged on the periphery of the aerosol generating matrix section. According to the aerosol generating system and the aerosol generating product thereof, the radiation energy loss can be reduced, the utilization rate of the radiation energy is improved, the puff-by-puff consistency of suction is improved, the heating efficiency of the aerosol generating product is improved, and the uniformity of a temperature field of an aerosol generating matrix section is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of atomization, in particular to an aerosol generating system and an aerosol generating product. Background Art

[0002] The heat-not-burn aerosol generating device (hereinafter referred to as HNB) is a device that heats aerosol-generating products to about 200-350°C in a heat-not-burn manner to generate aerosols for users to inhale. Since HNB generates aerosol-generating products by heating but not burning, there is no high-temperature combustion (the maximum temperature can reach 900°C), which avoids the process of high-temperature cracking and releasing harmful components. Therefore, the content of harmful substances in the aerosol generated by HNB is much lower than that of traditional aerosol-generating products, which makes HNB a potential direction for the future development of the aerosol-generating products industry.

[0003] HNB uses heating elements to heat the aerosol-generating products that match it, so that its aroma substances can volatilize, in order to obtain a feeling similar to that of smoking traditional aerosol-generating products. However, there are still some problems with HNB central heating: the central heating radiation energy utilization efficiency of the heating element is not high, and the heating efficiency of the atomizing medium is not high enough, resulting in high energy consumption. Utility Model Content

[0004] Aiming at the problem that the utilization efficiency of radiation energy is low and the energy consumption is high during the heating process of the heating element of HNB, the utility model provides an aerosol generating system and an aerosol generating product.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] An aerosol generating product is constructed, comprising a filter section, an aerosol generating substrate section and a cooling section arranged therebetween, the aerosol generating product further comprising a reflective portion, the reflective portion being at least partially arranged on the periphery of the aerosol generating substrate section.

[0007] In some embodiments, the aerosol-generating article further comprises a shell, the aerosol-generating substrate segment is disposed within the shell, and the reflective portion comprises a reflective film disposed between the aerosol-generating substrate segment and the shell.

[0008] In some embodiments, the reflective film includes a reflective film substrate and a reflective layer disposed on a surface of the reflective film substrate.

[0009] In some embodiments, the reflective film is cylindrical, annular, spiral, or arc-shaped, or is a film track formed by extending a strip or combining multiple strips and including at least one bending portion.

[0010] In some embodiments, the axial length of the aerosol-generating substrate segment is greater than or equal to the axial length of the reflective portion.

[0011] In some embodiments, the distance between the end of the reflective portion close to the cooling section and the end of the aerosol generating substrate section close to the cooling section is less than or equal to 3 mm;

[0012] And / or, the axial length of the reflecting portion is 0.4-0.8 of the axial length of the aerosol generating substrate segment.

[0013] In some embodiments, the aerosol-generating substrate segment is formed with through holes along its own axial direction.

[0014] In some embodiments, the aerosol generating article further comprises a blocking section, wherein the blocking section is disposed at one end of the aerosol generating substrate section away from the cooling section, and the length of the blocking section is greater than or equal to 12.5% ​​of the length of the aerosol generating substrate section and less than or equal to 30% of the length of the aerosol generating substrate section;

[0015] And / or, the length of the blocking section is 1.5 mm-3 mm;

[0016] And / or, the air permeability of the blocking section is greater than or equal to 40 CU.

[0017] An aerosol generating system is constructed, comprising an aerosol generating article as described above and an aerosol generating device for heating the aerosol generating article, wherein the aerosol generating device comprises a heating element, and the heating element is used to insert an aerosol generating substrate segment and heat the aerosol generating substrate segment.

[0018] In some embodiments, the aerosol generating substrate segment is formed with a through hole along its own axial direction for accommodating the heating element, the through hole is coaxially arranged with the heating element, and the heating element is at least partially spaced apart from the inner wall of the through hole.

[0019] The utility model has at least the following beneficial effects:

[0020] The utility model adds a reflective film on the periphery of the aerosol generating matrix segment, which can reflect the radiation energy generated by the heating element during the heating process, so that the radiation energy transmitted toward the shell is reflected back to the aerosol generating matrix segment to heat the aerosol generating matrix segment, which can reduce the loss of radiation energy, improve the utilization rate of radiation energy, and improve the puff consistency, the heating efficiency of the aerosol generating product and the uniformity of the temperature field of the aerosol generating matrix segment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0022] Figure 1 is a schematic longitudinal cross-sectional view of an aerosol generating article according to a first embodiment of the present utility model;

[0023] Figure 2 yes Figure 1 A schematic transverse cross-sectional view of a cooling section in an aerosol generating article shown;

[0024] Figure 3 yes Figure 1 The three-dimensional structure diagram of the aerosol generating article without the shell is shown;

[0025] Figure 4 yes Figure 1 A schematic diagram of the three-dimensional structure of the reflective film in the aerosol generating article shown;

[0026] Figure 5 is a schematic diagram of the three-dimensional structure of the aerosol generating system in the second embodiment of the utility model;

[0027] Figure 6 yes Figure 5 A schematic longitudinal cross-sectional view of an aerosol generating article as shown;

[0028] Figure 7 is a schematic longitudinal cross-sectional view of an aerosol generating article in a third embodiment of the present utility model;

[0029] Figure 8 yes Figure 7 A schematic transverse cross-sectional view of a cooling section in an aerosol generating article shown;

[0030] Fig. 9 It is a schematic diagram of the three-dimensional structure of the reflective film in the fourth embodiment of the utility model. DETAILED DESCRIPTION

[0031] In order to have a clearer understanding of the technical features, purposes and effects of the present utility model, the specific implementation methods of the present utility model are now described in detail with reference to the accompanying drawings.

[0032] The terms "connected" and "connected" used herein may mean directly connected or indirectly connected; "plurality" means two or more. "First" and "second" are only used to distinguish different components and should not be understood as implying relative importance or the number of components.

[0033] Figure 1The aerosol generating article 10 in the first embodiment of the utility model is shown. The aerosol generating article 10 is detachably inserted into an aerosol generating device. The aerosol generating device includes a heating element. The aerosol generating article 10 can generate aerosol after being heated by the heating element. The aerosol generating article 10 can be roughly cylindrical, elliptical, square, etc. The aerosol generating article 10 includes an aerosol generating matrix segment 14 for generating aerosol and a reflecting portion arranged on the periphery of the aerosol generating matrix segment 14. The reflecting portion is at least partially arranged on the periphery of the aerosol generating matrix segment 14, and is used to reflect the high-temperature radiation energy emitted by the heating element during the heating process.

[0034] The aerosol generating product 10 includes a cylindrical housing 11, a filter section 12, a cooling section 13, and an aerosol generating matrix section 14, wherein the filter section 12, the cooling section 13, and the aerosol generating matrix section 14 are all disposed in the housing 11. It should be noted that the cross section of the cylindrical housing 11 is circular in the present embodiment, and in some other optional embodiments, the cross section may also be rectangular, polygonal, etc. In some embodiments, the aerosol generating product 10 may further include a blocking section 15, which is disposed at one end of the aerosol generating matrix section 14 away from the cooling section 13.

[0035] The end of the aerosol generating product 10 inserted into the aerosol generating device 20 is defined as the bottom end, and the end for the user to inhale (the end opposite to the bottom end) is defined as the top end. The housing 11, the filter section 12, the cooling section 13, the aerosol generating matrix section 14, and the blocking section 15 all include relative top ends and bottom ends, and the filter section 12, the cooling section 13, the aerosol generating matrix section 14, and the blocking section 15 are sequentially connected along the axial direction of the housing 11. The filter section 12 is relatively arranged at the top end of the housing 11, and the bottom end of the filter section 12 is connected to the top end of the cooling section 13, and is used to filter the aerosol inhaled by the user. The bottom end of the cooling section 13 is connected to the top end of the aerosol generating matrix section 14, and is used to guide the aerosol or the mixture of aerosol and air generated after the aerosol generating matrix section 14 is heated, and plays a certain cooling effect on the aerosol or the mixture of aerosol and air. The bottom end of the aerosol generating matrix section 14 is connected to the top end of the blocking section 15 , and the blocking section 15 is relatively arranged at the bottom end of the shell 11 to isolate the aerosol and condensate from overflowing from the bottom end of the aerosol generating matrix section 14 .

[0036] Read also Figure 2The outer wall surface of the cooling section 13 is formed with at least one air inlet groove along the axial direction, and the middle part of the cooling section 13 is formed with at least one air outlet channel 132 along the axial direction. Both ends of the air outlet channel 132 are connected. The bottom end of the air inlet groove is connected with the air outlet channel 132, and the top end is closed. The air inlet groove and the shell 11 define an air inlet channel 131 with a bottom end connected and a top end closed. The shell 11 is formed with an air inlet hole 111 arranged corresponding to the air inlet channel 131.

[0037] In the present embodiment, the number of the outlet channel 132 is one, and it is coaxially arranged with the cooling section 13, and is used to transmit the aerosol or the mixture of aerosol and air generated in the aerosol generating matrix section 14 to the filtering section 12, and also plays a certain cooling role on the aerosol or the mixture of aerosol and air. The number of the air inlet holes 111 and the air inlet grooves is multiple, and the multiple air inlet holes 111 are evenly spaced and formed on the circumference of the housing 11. The multiple air inlet grooves and the housing 11 define multiple air inlet channels 131, and the multiple air inlet channels 131 are arranged in parallel and spaced on the circumference of the air outlet channel 132, and are respectively connected to the air inlet holes 111 one by one, and are used to transmit the outside air to the cooling section 13 through the air inlet holes 111. Specifically, the number of the air inlet channels 131 (or air inlet grooves) and the air inlet holes 111 in the present embodiment is three, and the three air inlet channels 131 are evenly arranged on the circumference of the air outlet channel 132.

[0038] The present application produces multiple beneficial effects by providing the air inlet 111, the air inlet channel 131 and the air outlet channel 132, including but not limited to: first, the air inlet 111 and the air inlet channel 131 can enhance the ventilation capacity of the aerosol generating product 10, adjust the temperature of the aerosol inhaled by the user, and reduce the inhalation resistance of the aerosol generating product 10. Second, the air inlet channel 131 can transfer the air outside the housing 11 to the aerosol generating matrix segment 14, so that the bottom end of the aerosol generating matrix segment 14 receives the air transferred from the aerosol generating device, while the top end also receives the air transferred from the air inlet channel 131, thereby uniformizing the temperature field of the aerosol generating matrix segment 14 and improving the temperature uniformity of the aerosol generating matrix segment 14. Third, the air inlet channel 131 also reduces the problem of condensation generated by the high and low temperature air meeting in the aerosol generating matrix section 14. The external cold air enters the aerosol generating matrix section 14 from the top and bottom of the aerosol generating matrix section 14 respectively, reducing the situation where the high and low temperature airflows meet, thereby reducing the generation of condensation. Fourth, the air inlet channel 131 and the air outlet channel 132 make it easier for the aerosol generated by the aerosol generating matrix section 14 to be taken out through airflow exchange, increasing the difficulty of aerosol deposition or overflowing the aerosol generating matrix section 14, that is, reducing the degree to which the aerosol generating device is stained and difficult to clean due to carbon deposition and slag falling on the aerosol generating product 10.

[0039] In some other optional embodiments, the air inlet groove can also be arranged in a circular ring shape with a bottom end penetrating therethrough, so that the air inlet channel 131 is arranged in a circular ring shape with a bottom end penetrating therethrough, and the air inlet channel 131 can be arranged coaxially with the cooling section 13.

[0040] For example Figure 2 As shown, the aerosol generating substrate segment 14 is cylindrical to match the cylindrical aerosol generating article 10. The aerosol generating substrate inside includes but is not limited to plant materials, flavor materials, smoke-generating substances, adhesives, etc., and the medium can be in the form of flakes, particles or colloids.

[0041] The aerosol generating matrix segment 14 is axially penetrated by a through hole 141 for accommodating a needle-type heating element. The through hole 141 is coaxially arranged with the aerosol generating matrix segment 14, and the aperture of the through hole 141 is larger than the diameter of the needle-type heating element, so that when the needle-type heating element is arranged in the through hole 141, it can be spaced apart from the side wall defining the through hole 141 to prevent the high-temperature heating element from scorching the aerosol generating matrix and causing carbonization and slagging, while minimizing the amount of foreign matter generated by the aerosol generating matrix remaining on the needle-type heating element.

[0042] The blocking section 15 includes at least one breathable membrane, which prevents the aerosol from overflowing from the bottom of the aerosol generating matrix section 14 in the form of physical isolation, and prevents the condensate formed at the bottom of the aerosol generating matrix section 14 from overflowing from the housing 11, and also reduces the risk of the condensate overflowing and adhering to the aerosol generating device. In some other optional embodiments, some flavoring and flavoring filling materials such as flavored acetate fiber, flavoring particles, popping beads, tobacco shreds, etc. can also be arranged in the blocking section 15 to improve the smoking taste.

[0043] The breathable film is arranged at the top or bottom of the blocking section 15, and can also be arranged at the top and bottom of the blocking section 15 at the same time. The material of the breathable film includes paper with high air permeability, and the air permeability of the blocking section 15 or the breathable film is greater than or equal to 40CU. The length of the blocking section 15 is 1.5mm-3.5mm. That is, the length of the blocking section 15 can be any value between 1.5mm-3.5mm, and can also be the end value of 1.5mm or 3.5mm.

[0044] In some embodiments, the length of the blocking segment 15 may also be greater than or equal to 12.5% ​​of the length of the aerosol generating substrate segment 14 , and less than or equal to 30% of the length of the aerosol generating substrate segment 14 .

[0045] The setting of the blocking section 15 produces multiple beneficial effects, including but not limited to: first, it can ensure air circulation and ensure low suction resistance while effectively absorbing residual aerosol, thereby reducing the overflow or penetration of aerosol to the bottom, reducing the overflow of condensate and stains, and improving the ease of cleaning of the aerosol generating device. Second, the blocking section 15 serves as a transition section for the airflow to enter the aerosol generating matrix section 14, which can preheat the air to a certain extent, thereby reducing the amount of condensate generated by the meeting of high and low temperature air.

[0046] It should be understood that in some other optional embodiments, the aerosol generating product 10 may not be provided with the sealing section 15. By setting the bottom end of the aerosol generating matrix section 14 above the bottom end of the shell 11, a cavity is formed at the bottom end of the shell 11, thereby achieving the above-mentioned effect.

[0047] The following Tables 1 to 3 are some specific experimental examples and comparative examples of this embodiment:

[0048]

[0049] Table 1

[0050]

[0051] Table 2

[0052]

[0053] Table 3

[0054] The above beneficial effects produced by the blocking section 15 in this embodiment can be further verified according to Tables 1 to 3.

[0055] For example Figure 1 As shown, in this embodiment, the reflecting portion is a reflecting film 16, which is arranged between the aerosol generating matrix segment 14 and the shell 11, and is arranged on the circumference of the aerosol generating matrix segment 14, and is used to reflect the high-temperature radiation energy generated by the heating element in the aerosol generating device, so as to improve the utilization rate of the energy generated by the heating element 21 and improve the heating consistency of the medium.

[0056] Read also Figure 4 The reflective film 16 includes at least two "J"-shaped structures, which are connected end to end and arranged to form a cylindrical shape that penetrates from top to bottom, and are sleeved outside the aerosol generating matrix segment 14 and are located between the aerosol generating matrix segment 14 and the housing 11. During the heating process, the heating element 21 emits high thermal radiation energy, which reaches the inner surface of the reflective film 16 and is reflected back to the atomized medium in the radial direction to reduce the loss of radiation energy, which is beneficial to improve energy utilization and enhance the consistency of medium heating.

[0057] Specifically, the reflective film 16 includes a reflective film substrate and a reflective layer disposed on the inner surface or outer surface of the reflective film substrate. In this embodiment, the reflective film substrate is made of stainless steel, and the reflective layer is a silver-plated layer. In some other optional embodiments, the reflective film substrate can also be made of aluminum alloy (6061 or 6063) or copper, and the inner surface is polished.

[0058] like Figure 3 As shown, the axial length of the aerosol generating matrix segment 14 is greater than the axial length of the reflecting portion, and the reflecting portion is arranged near the top of the aerosol generating matrix segment 14. The axial length of the reflecting portion is 0.4-0.8 of the axial length of the aerosol generating matrix segment 14, and in this embodiment, the top of the reflecting portion is flush with the top of the aerosol generating matrix segment 14 to ensure fast smoke output and consistency of each puff during the puffing process. The arrangement position of the reflecting film 16 can ensure "fast smoke output" in the first puff, and can also ensure the amount of smoke in each subsequent puff, thereby ensuring consistency of each puff of puffing.

[0059] In some other optional embodiments, the reflective film 16 may be surrounded by at least one m-shaped, s-shaped, z-shaped, c-shaped, I-shaped, X-shaped or other special-shaped structures, and may also be cylindrical, annular, spiral, curved, or a film track including at least one bend formed by extending a strip or combining multiple strips, and may be sleeved outside the aerosol generating matrix segment 14. The reflective film 16 may also be sleeved outside the housing 11, and may be disposed at a position of the housing 11 corresponding to the aerosol generating matrix segment 14.

[0060] In some other optional embodiments, the reflecting portion can also be arranged on the shell 11, by setting the section of the shell 11 corresponding to the aerosol generating matrix segment 14 as a reflecting portion with a reflecting effect, or by setting a reflecting layer on the inner wall surface or outer wall surface of the section of the shell 11 corresponding to the aerosol generating matrix segment 14 through a process such as spraying, so as to achieve the effect of the above-mentioned reflecting film 16.

[0061] It should be understood that the location where the reflective film 16 (or other types of reflective parts) are set includes but is not limited to the aerosol generating matrix segment 14. The top of the reflective film 16 can also extend to the cooling segment 13, and the height of the portion of the reflective film 16 set between the cooling segment 13 and the housing 11 is not higher than 3 mm, that is, the top of the reflective film 16 is at most 3 mm higher than the top of the aerosol generating matrix segment 14. The top of the reflective film 16 can also be lower than the top of the aerosol generating matrix segment 14, and the distance between the top of the reflective film 16 and the top of the aerosol generating matrix segment 14 is less than or equal to 3 mm.

[0062] In some other optional embodiments, the reflective film 16 may also be in a sheet shape and disposed between the aerosol generating substrate section 14 and the cooling section 13 to reflect infrared radiation energy along the axial direction.

[0063] By providing the reflective film 16, this embodiment produces a number of beneficial effects, including but not limited to: First, it can improve the energy utilization rate of the heating element 21, improve the consistency of each puff, and the stability of the amount of aerosol generated. Second, the reflective film 16 can improve the temperature field distribution of the aerosol generating matrix segment 14 by setting different shapes, improve the uniformity of the temperature field of the aerosol generating product 10, and avoid the inconsistent taste caused by the uneven temperature field; in addition, it can also reduce the amount of stains overflowing into the aerosol generating device. Third, by providing the reflective film 16 to improve the temperature field of the aerosol generating matrix segment 14, it is possible to specifically avoid the encounter of high and low temperature airflows in the aerosol generating matrix segment 14, thereby reducing the generation of condensate. Fourth, the heating efficiency of the medium can be improved and the preheating time can be shortened.

[0064] Figure 5 The aerosol generating system 1 of the second embodiment of the utility model is shown, and the aerosol generating system 1 comprises an aerosol generating device 20 (partially shown) and the aerosol generating product 10 described in the first embodiment. The aerosol generating product 10 is detachably inserted into the aerosol generating device 20, and is heated by the aerosol generating device 20 to generate aerosol, and it is convenient to take out and replace a new aerosol generating product 10 for continued use after the heating is completed. The aerosol generating device 20 can perform low-temperature baking and heating on the aerosol generating product 10 inserted therein after being powered on, so as to release aerosol without burning.

[0065] Read also Figure 6 The aerosol generating device 20 includes a heating element 21, which is inserted into the aerosol generating substrate segment 14 to heat the medium in the aerosol generating substrate segment 14 to generate aerosol. The heating element 21 is a needle-type heating element that heats the medium in the aerosol generating substrate segment 14 by heat conduction and / or infrared radiation.

[0066] In some embodiments, the through hole 141 formed along the axial direction of the aerosol generating substrate segment 14 is coaxially arranged with the heating element 21 , and the heating element 21 and the inner wall of the through hole 141 are at least partially spaced apart.

[0067] In this embodiment, when the aerosol generating product 10 is inserted into the aerosol generating device 20, the heating element 21 is coaxially arranged with the aerosol generating substrate segment 14, and the heating element 21 is spaced apart from the medium in the aerosol generating substrate segment 14 to ensure the uniformity of the circumferential heating of the aerosol generating substrate segment 14 by the heating element 21.

[0068] The positional relationship between the heating element 21 and the aerosol generating matrix segment 14 has multiple beneficial effects, including but not limited to: First, the coaxial arrangement between the heating element 21 and the aerosol generating matrix segment 14 can ensure the uniformity of the temperature field in the circumferential direction of the aerosol generating matrix segment 14 during the heating process, thereby ensuring the mouthfeel of the puff. Second, the spacing between the heating element 21 and the aerosol generating matrix segment 14 can ensure that the heating element 21 heats the medium through infrared radiation as much as possible, rather than heating through contact heat transfer. While pursuing rapid smoke output, it can also avoid the phenomenon of the heating element 21 causing the medium to burn through heat conduction, thereby alleviating the problems of carbon deposition and slag falling in the aerosol generating product 10, and improving the mouthfeel. Third, the spacing between the heating element 21 and the aerosol generating matrix segment 14 can avoid the problem of foreign matter adhesion caused by the contact between the medium in the aerosol generating matrix segment 14 and the heating element 21.

[0069] It should be understood that the heating element 21 can achieve the above functions through existing technologies, such as plasma infrared and light wave infrared.

[0070] Figure 7 The aerosol generating article 10b in the third embodiment of the utility model is shown. The main differences between the aerosol generating article 10b and the first embodiment include:

[0071] Read also Figure 8 In this embodiment, at least one air outlet groove is formed in the axial direction on the outer wall of the cooling section 13b. Both ends of the air outlet groove are connected, and together with the shell 11b, at least one air outlet channel 132 is defined. At least one air inlet channel 131b is formed in the axial direction in the middle of the cooling section 13b. The bottom end of the air inlet channel 131b is connected, and the top end is closed.

[0072] Specifically, there is one air inlet channel 131b, which is coaxially arranged with the cooling section 13b, and is used to transfer external cold air to the cooling section 13b through the air inlet hole 111b.

[0073] The number of the gas outlet grooves is multiple, and the multiple gas outlet grooves and the housing 11 define multiple gas outlet channels 132b, and the multiple gas outlet channels 132b are arranged in parallel and spaced apart on the circumference of the inlet channel 131b, and are used to transmit the aerosol or the mixture of aerosol and air generated in the aerosol generating matrix section 14b to the filter section 12b, and also play a certain cooling effect on the aerosol or the mixture of aerosol and air. Specifically, the number of the gas outlet channels 132b (or gas outlet grooves) in this embodiment is three, and the three gas outlet channels 132b are evenly arranged on the circumference of the inlet channel 131b.

[0074] The cooling section 13b is also formed with at least one connecting channel 133, one end of which is connected to the air inlet hole 111b, and the other end is connected to the top of the air inlet channel 131b, so that the connecting channel 133 passes through the inner wall surface of the top of the air inlet channel 131b to the outer wall surface of the cooling section 13b. Specifically, the connecting channel 133 is arranged horizontally, and the number of the connecting channel 133 and the air inlet hole 111b is three, and the three connecting channels 133 and the three air inlet holes 111b are evenly spaced and arranged on the circumference of the air inlet channel 131b.

[0075] Fig. 9 The reflective film 16c in the fourth embodiment of the present invention is shown. The main difference between the reflective film 16c and the first embodiment is that:

[0076] In this embodiment, the reflective film 16c is a cylindrical shape surrounded by a rectangle and penetrates from top to bottom. It is sleeved on the aerosol generating matrix segment 14 and arranged between the aerosol generating matrix segment 14 and the shell 11. It can reflect the radiation energy generated by the heating element 21 to the greatest extent, and the radiation utilization rate is high.

[0077] It should be understood that the reflective film 16c can also be disposed outside the housing 11 and on a section of the housing 11 corresponding to the aerosol generating substrate section 14. The reflective film 16c can be disposed within a range including but not limited to the aerosol generating substrate section 14.

[0078] It is understandable that the above embodiments only express the preferred implementation of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, without departing from the concept of the utility model, the above technical features can be freely combined, and several deformations and improvements can be made, which all belong to the protection scope of the utility model. Therefore, all equivalent changes and modifications made to the scope of the claims of the utility model should belong to the scope of the claims of the utility model.

Claims

1. An aerosol generating article comprising a filter section, an aerosol generating substrate section and a cooling section disposed therebetween, characterized in that: The aerosol-generating article further comprises a reflective portion disposed at least partially on a periphery of the aerosol-generating substrate segment.

2. The aerosol-generating article according to claim 1, wherein The aerosol generating article further comprises a shell, the aerosol generating substrate segment is arranged in the shell, and the reflecting portion comprises a reflecting film, and the reflecting film is arranged between the aerosol generating substrate segment and the shell.

3. The aerosol-generating article according to claim 2, wherein: The reflective film comprises a reflective film substrate and a reflective layer arranged on the surface of the reflective film substrate.

4. The aerosol-generating article according to claim 2, wherein: The reflective film is cylindrical, annular, spiral, or arc-shaped, or is a film track formed by extending a strip or combining multiple strips and including at least one bending portion.

5. The aerosol-generating article of claim 2, wherein: The axial length of the aerosol generating substrate segment is greater than or equal to the axial length of the reflecting portion.

6. An aerosol generating article according to claim 5, characterized in that The distance between the end of the reflecting portion close to the cooling section and the end of the aerosol generating substrate section close to the cooling section is less than or equal to 3 mm; And / or, the axial length of the reflecting portion is 0.4-0.8 of the axial length of the aerosol generating substrate segment.

7. The aerosol-generating article of claim 2, wherein: The aerosol generating substrate segment is formed with through holes along its own axial direction.

8. The aerosol-generating article of claim 2, wherein: The aerosol generating article further comprises a blocking section, which is arranged at one end of the aerosol generating substrate section away from the cooling section, and the length of the blocking section is greater than or equal to 12.5% ​​of the length of the aerosol generating substrate section and less than or equal to 30% of the length of the aerosol generating substrate section; And / or, the length of the blocking section is 1.5 mm-3 mm; And / or, the air permeability of the blocking section is greater than or equal to 40 CU.

9. An aerosol generating system, characterized in that: It comprises the aerosol generating product according to any one of claims 1 to 8 and an aerosol generating device for heating the aerosol generating product, wherein the aerosol generating device comprises a heating element, and the heating element is used to insert the aerosol generating substrate segment and heat the aerosol generating substrate segment.

10. An aerosol generating system according to claim 9, characterized in that The aerosol generating substrate segment is formed with a through hole for accommodating the heating element along its own axial direction. The through hole is coaxially arranged with the heating element, and the heating element and the inner wall of the through hole are at least partially spaced apart.

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