Heat-not-burn product and heat-not-burn system
By setting air intake holes and air-permeable sealing sections in the heated non-combustible products, an airflow channel is formed, which solves the problem of hot nozzles with too high aerosol temperature, and reduces the airflow temperature and improves the user experience.
Patent Information
- Application Number
- CN202422360147.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-26
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-09-26
AI Technical Summary
During the use of heating and non-combustible products, the temperature of the aerosol generated is too high, which leads to problems with users' burning their mouths.
A heated non-combustible product is designed, including a filter section, a cooling section, a substrate section and a sealing section. By setting air intake holes in the cooling section and making the sealing section airtight or basically airtight, an airflow channel is formed to prevent the airflow from directly passing through the high-temperature matrix section, and the aerosol flows out after mixing with the room temperature airflow in the cooling section.
It reduces the airflow temperature, improves the user's suction experience, avoids the phenomenon of hot mouth, and simplifies the structure of the heating-free device, reducing device pollution.
Smart Images

Figure CN223232098U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of heat-without-combustion technology, and in particular to a heat-without-combustion product and a heat-without-combustion system. Background Art
[0002] Heat-not-burn products include a heat-not-burn substrate that generates aerosol without burning. During use, these products typically require a heating component to heat the substrate to several hundred degrees Celsius to generate an aerosol, which is then delivered to the user. Because the aerosol generated by the heated substrate is very hot, it can easily burn the user's mouth during inhalation. Utility Model Content
[0003] The present application provides a heat-not-burn product and a heat-not-burn system for solving the problem of aerosol burning the mouth.
[0004] In one embodiment, a heat-not-burn product is provided, comprising:
[0005] Filter segment;
[0006] A hollow cooling section is provided upstream of the filtering section and has at least one air inlet hole on its side wall;
[0007] A substrate section having a substrate that heats but does not burn the substrate, disposed upstream of the cooling section;
[0008] The blocking section is arranged upstream of the matrix section. The air permeability of the blocking section is less than 100CU, or the air flow rate is less than 2ml / s, so as to prevent or limit the gas from entering the matrix section from the upstream end of the matrix section.
[0009] In some embodiments, there are multiple air inlet holes, and the multiple air inlet holes are evenly spaced and arranged in the circumferential direction of the cooling section.
[0010] In some embodiments, the multiple air inlet holes are divided into multiple groups; the number of the air inlet holes in each group is multiple, and the air inlet holes in each group are evenly spaced apart in the circumferential direction of the cooling section; multiple groups of the air inlet holes are spaced apart in the axial direction of the cooling section.
[0011] In some embodiments, the perimeter of the air inlet hole is greater than 0.1 mm.
[0012] In some embodiments, the ventilation rate of the at least one air inlet is between 20% and 50%, and / or the air intake volume is between 10 ml / s and 20 ml / s, and / or the suction resistance is between 600 Pa and 1200 Pa.
[0013] In some embodiments, the distance between the at least one air inlet and the downstream end of the filter section is greater than or equal to 8 mm and less than or equal to 28 mm;
[0014] And / or, the distance between the at least one air inlet and the upstream end of the blocking section is greater than or equal to 30 mm and less than or equal to 37 mm.
[0015] In some embodiments, a cylindrical shell is further included, which includes a first shell and a second shell; the first shell is arranged around the cooling section, the matrix section and the sealing section; the second shell is arranged around the filtering section and at least part of the cooling section, and is arranged outside the first shell; the first shell and the second shell are respectively formed with through holes corresponding to the air inlet holes.
[0016] In some embodiments, a cooling layer is provided on the inner wall of the cooling section.
[0017] In some embodiments, the cooling layer has a thickness greater than 0.1 mm, and / or the cooling layer is aluminum foil, polylactic acid film, or aluminum foil with at least one surface coated with polylactic acid film.
[0018] A heat-not-burn system is provided, comprising a heat-not-burn device and the heat-not-burn product described in any of the aforementioned embodiments, wherein the heat-not-burn device is used to heat the heat-not-burn product.
[0019] According to the heat-not-burn product of the above embodiment, by providing an air inlet and configuring the blocking section as an airtight structure, an airflow channel can be formed through the air inlet, the cooling section, and the filtration section. During the inhalation process, although the airflow channel does not pass through the matrix section, the aerosol generated by the matrix section can move to the cooling section under the action of negative pressure, mix with the normal temperature airflow entering from the air inlet in the cooling section, and after cooling, follow the airflow out of the filtration section. Because the airflow channel does not pass through the matrix section, it is difficult to be heated by high temperatures. At this time, the temperature of the aerosol flowing out of the filtration section of the heat-not-burn product can be relatively lower, avoiding burns to the mouth, thereby improving the user's inhalation experience. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 This is a schematic structural diagram of a heat-not-burn product in one embodiment;
[0021] Figure 2 is included Figure 1 A schematic structural diagram of a heat-not-burn system for heat-not-burn products shown;
[0022] The accompanying drawings are numerals as follows:
[0023] 1-heat-not-burn product; 10-shell; 11-first shell; 12-second shell; 20-filter section; 30-cooling section; 31-cooling layer; 32-support layer; 301-air inlet; 40-matrix section; 50-sealing section; 2-heat-not-burn device; 200-insertion space; 201-heating component. DETAILED DESCRIPTION
[0024] The present application is further described in detail below by means of specific embodiments in conjunction with the accompanying drawings. Similar elements in different embodiments are numbered with associated similar elements. In the following embodiments, many detailed descriptions are provided to enable the present application to be better understood. However, those skilled in the art will readily appreciate that some of the features may be omitted in different circumstances, or may be replaced by other elements, materials, or methods. In some cases, some operations related to the present application are not shown or described in the specification. This is to avoid the core portion of the present application being overwhelmed by excessive descriptions. For those skilled in the art, it is not necessary to describe these related operations in detail. They can fully understand the related operations based on the description in the specification and the general technical knowledge in the art.
[0025] In addition, the features, operations, or characteristics described in the specification may be combined in any appropriate manner to form various embodiments. Furthermore, the steps or actions in the method description may be reordered or adjusted in a manner readily apparent to those skilled in the art. Therefore, the various sequences in the specification and drawings are provided solely for the purpose of clearly describing a particular embodiment and are not intended to be mandatory, unless otherwise specified.
[0026] The serial numbers assigned to components herein, such as "first," "second," etc., are used solely to distinguish the objects being described and do not convey any sequential or technical meaning. References to "connection" and "coupling" herein, unless otherwise specified, include both direct and indirect connections (couplings).
[0027] like Figure 1 As shown, the present application provides a heat-not-burn product 1, which can be used in conjunction with a heat-not-burn device 2 (with Figure 2When the heat-not-burn device 2 shown is used as an example, it is heated to generate an aerosol for the user to use. The heat-not-burn product 1 includes a filter section 20, a cooling section 30, a matrix section 40, and a blocking section 50. The matrix section 40 contains a heat-not-burn matrix for generating an aerosol for the user to inhale after being heated. The blocking section 50 is arranged upstream of the matrix section 40 and is used to block the upstream end of the heat-not-burn product 1. The blocking section 50 can prevent the aerosol generated by the matrix section 40 and the condensate generated by the airflow from overflowing. The cooling section 30 is arranged downstream of the matrix section 40 and is used to provide a flow channel and a mixing channel for the aerosol and the air, and to provide a cooling and buffer space for the aerosol. The filter section 20 is arranged downstream of the cooling section 30 and is used to filter the mixture of the aerosol and the air flowing through, and to provide a certain cooling effect, thereby improving the user's suction experience.
[0028] Furthermore, the cooling section 30 is hollow, with at least one air inlet 301 provided on its sidewall, connecting the interior of the cooling section 30 to the outside world. During the inhalation process, outside air enters the cooling section 30 through the air inlet 301 and flows out through the cooling section 30 and the filtration section 20, forming an airflow channel. The blocking section 50 is airtight or substantially airtight, allowing the air inlet 301 to serve as the sole air inlet for the heat-not-burn product during inhalation, ensuring that the user experiences appropriate draw resistance and gas flow rate.
[0029] It should be understood that the blocking section 50 can be completely airtight or substantially airtight, with a low degree of air permeability. "Airtight or substantially airtight" may mean an air permeability of less than 100 CU (e.g., 30 CU, 50 CU, 80 CU, etc.), or an air flow rate of less than 2 ml / s (e.g., 0.5 ml / s, 0.7 ml / s, 1 ml / s, 1.5 ml / s, 1.8 ml / s, etc.). The suction resistance of the blocking section 50 is much greater than that of the filtration section 20. Without the air inlet 301, the suction resistance during inhalation is high, making it difficult to reduce the aerosol temperature.
[0030] It should be understood that the terms "upstream" and "downstream" in this application can be determined based on the direction of the aerosol in the heat-not-burn product 1. Figure 1 In the figure, the direction pointed by the arrow is downstream, and the direction opposite to the arrow is upstream.
[0031] By providing the air inlet 301 and configuring the blocking section 50 as an airtight or substantially airtight structure, the heat-not-burn product 1 can primarily take in air through the air inlet 301 during the puffing process, forming a single airflow path. Since the matrix section 40 is located upstream of the cooling section 30, the two are connected. During the puffing process, although the airflow path does not pass through the matrix section 40, the aerosol generated by the matrix section 40 can move to the cooling section 30 under the influence of the negative pressure generated by the puffing, and then flow out of the filter section 20 along with the airflow.
[0032] The setting mode of the present application can also make the heat-not-burn device 2 adapted to the heat-not-burn product 1 not be provided with an air intake function (that is, an air inlet hole can be not provided), thereby simplifying the structure of the adapted heat-not-burn device 2. At the same time, since the air flow channel does not pass through the matrix section 40, it is difficult to be heated by high temperature. At this time, the temperature of the air flow flowing out through the filter section 20 of the heat-not-burn product 1 can be relatively lower. Furthermore, since the air flow channel does not pass through the matrix section 40, there is no problem that the suction resistance is difficult to control as the suction proceeds. The suction resistance in the present application is controlled by the number, size, and setting position of the air inlet hole 301, which can be accurately controlled, further improving the user experience.
[0033] By providing an airtight sealing section 50 upstream of the matrix section 40, the present application can absorb residue and other stains generated during the heating process of the heat-not-burn matrix. It can also absorb condensate generated in the airflow during the suction process. Furthermore, this can reduce contamination of the heat-not-burn product 1 to the heat-not-burn device 2 after suction, alleviating the problems of excessive stains and difficulty in cleaning faced by the heat-not-burn device 2, further improving the user experience of the product.
[0034] In this embodiment, the heat-not-burn product 1 is cylindrical in shape as a whole.
[0035] In some other optional embodiments, it can also be configured as an elliptical column, a deformed column, an irregular column or other structures as a whole.
[0036] In some embodiments, there are multiple air inlet holes 301 , and the multiple air inlet holes 301 are evenly spaced around the circumference of the cooling section 30 .
[0037] By arranging the air inlet holes 301 at even intervals around the circumference of the cooling section 30, the uniformity of air intake in the cooling section 30 can be improved, and the uniformity of the airflow distribution in the circumferential direction within the cooling section 30 can also be improved. Furthermore, due to the uniformity of air intake in the circumferential direction, the uniformity of negative pressure in the circumferential direction can be achieved, so that the aerosol flows uniformly from the matrix section 40 to the cooling section 30 in the circumferential direction. The uniformity of the temperature field in the circumferential direction can also be improved, thereby improving the user's puffing experience.
[0038] The shape of the air inlet 301 can be circular, triangular, polygonal, elliptical, irregular, or the like, and is not specifically limited here. When there are multiple air inlet holes 301, the multiple air inlet holes 301 can be of the same shape or of different shapes, and is not specifically limited here. When the shapes of the multiple air inlet holes 301 are different, each air inlet hole 301 can have a different shape, or some air inlet holes 301 can have the same shape and some can have different shapes, and is not specifically limited here.
[0039] In some embodiments, when there are multiple air inlet holes 301, the multiple air inlet holes 301 can be divided into multiple groups, where each group includes multiple air inlet holes 301. The multiple air inlet holes 301 in each group are evenly spaced around the circumference of the cooling section 30, and the air inlet holes 301 are spaced apart from each other in the axial direction of the cooling section 30.
[0040] It should be understood that the axial distance between the air inlet holes 301 of the groups can be evenly spaced or unevenly spaced, which is not limited here. The number of air inlet holes 301 in each group can be the same or different, which is not limited here. When the number of air inlet holes 301 in each group is the same, the air inlet holes 301 of the two adjacent groups can be arranged in parallel and spaced apart (there are two air inlet holes 301 in the air inlet holes 301 of the two adjacent groups, and the connecting line is parallel to the axis of the heat-not-burn product 1), or they can be staggered with each other (the connecting line of any two air inlet holes 301 in the two adjacent groups is not parallel to the axis of the heat-not-burn product 1), which is not limited here.
[0041] In some embodiments, the perimeter of the air inlet hole 301 is greater than 0.1 mm.
[0042] In some embodiments, the air inlet 301 is arranged so that the ventilation rate of the heat-not-burn product 1 as a whole is between 20% and 50% (for example, 20%, 30%, 40% or 50%).
[0043] In some embodiments, the setting of the air inlet 301 can make the overall air intake volume of the heat-not-burn product 1 between 10 ml / s and 20 ml / s (for example, it can be 10 ml / s, 15 ml / s or 20 ml / s).
[0044] In some embodiments, the setting of the air inlet 301 can make the overall suction resistance of the heat-not-burn product 1 between 600Pa and 1200Pa (for example, it can be 600Pa, 700Pa, 800Pa, 1000Pa, 1200Pa, etc.).
[0045] In some embodiments, the air inlet 301 is disposed on the cooling section 30 relatively closer to the filtering section 20 .
[0046] Specifically, the distance between the air inlet 301 and the downstream end of the filter section 20 (i.e., the downstream end of the heat-not-burn product 1) is greater than or equal to 8 mm and less than or equal to 28 mm, for example, greater than 8 mm and less than 28 mm. And / or, the distance between the air inlet 301 and the upstream end of the blocking section 50 (i.e., the upstream end of the heat-not-burn product 1) is greater than or equal to 30 mm and less than or equal to 37 mm, for example, greater than 30 mm and less than 37 mm.
[0047] It should be understood that when the heat-not-burn product 1 has only one air inlet 301, the "distance between the air inlet 301 and the downstream end of the filter section 20" can be understood as the distance between the downstream end (or upstream end) of the air inlet 301 and the downstream end of the filter section 20, or the distance between the midpoint of the air inlet 301 and the downstream end of the filter section 20. This is not specifically defined here. The "distance between the air inlet 301 and the upstream end of the blocking section 50" is similar and will not be further described here.
[0048] When the heat-not-burn product 1 has multiple air inlet holes 301, the "distance between the air inlet hole 301 and the downstream end of the filter section 20" can be understood as the distance between the downstream end (or upstream end) of any one of the air inlet holes 301 and the downstream end of the filter section 20, or can be understood as the distance between the center height position of the overall structure formed by all the air inlet holes 301 and the downstream end of the filter section 20. No specific limitation is made here. The "distance between the air inlet hole 301 and the upstream end of the blocking section 50" is similar and will not be repeated here.
[0049] The filter section 20 and / or the plugging section 50 may be made of a material including acetate fiber, polypropylene fiber, etc., or a combination of multiple materials, which is not specifically limited here.
[0050] In some embodiments, a cooling layer 31 is provided on the inner wall of the cooling section 30 to further reduce the temperature of the airflow and prevent condensation and adsorption of aerosols.
[0051] Specifically, the thickness of the cooling layer 31 can be set to be greater than 0.1 mm to ensure the cooling effect.
[0052] It should be understood that the cooling layer 31 can be made of aluminum foil or a single-layer polylactic acid film. Alternatively, the cooling layer 31 can be a multi-layer structure. For example, when it is configured as an inner and outer layer, it can be a combination of materials. For example, the inner layer can be aluminum foil, and the outer layer can be coated with a single layer of polylactic acid film.
[0053] In some other optional embodiments, the cooling layer 31 may also be made of other existing materials that can prevent aerosol condensation and adsorption.
[0054] Furthermore, in some embodiments, the cooling section 30 may also be provided with a support layer 32, which may be arranged outside the cooling layer 31 to play a supporting role and avoid deformation, damage and other problems of the cooling section 30 due to negative pressure, external force extrusion and the like during the suction process.
[0055] In some embodiments, the heat-not-burn product 1 further includes a shell 10 , which is cylindrical with both ends penetrated and is arranged around the filtration section 20 , the cooling section 30 , the matrix section 40 and the blocking section 50 to provide protection.
[0056] Specifically, the housing 10 includes a first housing 11 and a second housing 12, both of which are cylindrical. The first housing 11 is disposed circumferentially around the cooling section 30, the matrix section 40, and the blocking section 50, thereby forming the cooling section. The second housing 12 is disposed circumferentially around the filter section 20 and at least a portion of the cooling section 30, and is disposed outside the first housing 11, thereby enabling the heat-not-burn product 1 to be assembled and manufactured.
[0057] The air inlet 301 may be formed on the axial section of the cooling section 30 where the first shell 11 and the second shell 12 overlap. In this embodiment, both the first shell 11 and the second shell 12 are provided with through holes corresponding to the air inlet 301 .
[0058] By setting the shell 10 into two parts and overlapping them on part of the axial section of the cooling section 30, better support and protection can be provided for the cooling section 30, avoiding the hollow cooling section 30 from being damaged during the suction process, thereby reducing the user experience.
[0059] In some other optional embodiments, the shell 10 can also be composed of one component, which is cylindrical as a whole and is arranged on the circumference of the filtering section 20, the cooling section 30, the matrix section 40 and the blocking section 50.
[0060] In some other optional embodiments, the overlapping portion of the first shell 11 and the second shell 12 can also be on the matrix segment 40 or the blocking segment 50 or the filtering segment 20, or the overlapping portion covers at least two sections of the heat-not-burn product 1.
[0061] In some other optional embodiments, when the overlapping portion of the first shell 11 and the second shell 12 covers part of the cooling section 30 , the air inlet 301 can also be arranged on the shaft section not covered by the overlapping portion of the first shell 11 and the second shell 12 .
[0062] It should be understood that when the temperature-lowering section 30 of the heat-not-burn product 1 is provided with a temperature-lowering layer 31 and a supporting layer 32 , the supporting layer 32 is provided between the first shell 11 and the temperature-lowering layer 31 .
[0063] In some other optional embodiments, when the temperature-lowering section 30 of the heat-not-burn product 1 is provided with a temperature-lowering layer 31 and a supporting layer 32 , the supporting layer 32 may also be provided between the first shell 11 and the second shell 12 .
[0064] The shell 10 can be fiber paper, and the cooling layer 31 and the supporting layer 32 can be made of paper, plant fiber, silica gel and other materials to form a breathable structure with an air passage, which is not specifically limited here.
[0065] The present application will be further described below through a specific embodiment. In this specific embodiment, there are multiple air inlet holes 301 , which are arranged in a group and are evenly spaced around the circumference of the cooling section 30 .
[0066] In the axial direction, the overall length of the heat-not-burn product 1 is 45 mm. The filter section 20 is 8 mm long, the cooling section 30 is 20 mm long, the matrix section 40 is 12 mm long, and the blocking section 40 is 5 mm long. The first shell 11 is 37 mm long, and the second shell 12 is 20 mm long. The distance from the midpoint of the air inlet 301 to the downstream end of the heat-not-burn product 1 is 15 mm, and the distance to the upstream end of the heat-not-burn product 1 is 30 mm.
[0067] The heat-not-burn product 1 has an overall circumferential diameter of 7.2 mm. The filter section 20 has a diameter of 7.1 mm. The cooling section 30 has a diameter of 7 mm. The matrix section 40 has a diameter of 7 mm. The blocking section 50 has a diameter of 7 mm. The first housing 11 has a circumferential length of 22.6 mm, and the second housing 12 has a circumferential length of 25 mm.
[0068] It should be understood that the dimensions of the various parts in the specific embodiment described above are merely exemplary descriptions of the heat-not-burn product 1 constructed in the present application, and the specific data shown are not to be regarded as limitations on the heat-not-burn product 1 constructed in the present application.
[0069] like Figure 2 As shown, the present application also constructs a heat-not-burn system, which includes a heat-not-burn device 2 and a heat-not-burn product 1 according to any one of the above embodiments.
[0070] In some embodiments, the heat-not-burn device 2 includes an insertion space 200 and a heating assembly 201. The insertion space 200 is used to insert the heat-not-burn product 1. The heating assembly 201 is disposed outside the insertion space 200 and is used to heat the heat-not-burn substrate within the substrate segment 40.
[0071] When the heat-not-burn product 1 is located within the insertion space 200, the substrate segment 40 can be entirely located within the insertion space 200, allowing for full contact with the heating assembly 201 and achieving a heat-not-burn effect. The cooling segment 30 is at least partially located outside the insertion space 200, allowing the air inlet 301 to be located outside the insertion space 200, thereby achieving an air intake effect.
[0072] During use, the heat-not-burn product 1 is placed in the insertion space 200. After the heat-not-burn device 2 is turned on, the heating component 201 heats the heat-not-burn matrix in the heat-not-burn product 1, forming an aerosol. During inhalation, ambient air enters the cooling section 30 through the air inlet 301 outside the insertion space 200, mixes with the aerosol trapped in the cooling section 30 due to negative pressure, and forms a mixed gas. The mixed gas then flows out of the filter section 20 along the airflow channel.
[0073] The above specific examples are used to illustrate the present application, which is only used to help understand the present application and is not intended to limit the present application. For those skilled in the art of the present application, based on the concept of the present application, they can also make some simple deductions, modifications or substitutions.
Claims
1. A heat-not-burn product, characterized in that: include: Filter section (20); A hollow cooling section (30) is provided upstream of the filtering section (20), and has at least one air inlet (301) provided on its side wall; A substrate section (40) having a substrate that heats but does not burn, and is disposed upstream of the cooling section (30); The blocking section (50) is arranged upstream of the matrix section (40), and the air permeability of the blocking section (50) is less than 100CU, or the air flow rate is less than 2ml / s, so as to prevent or limit the gas from entering the matrix section (40) from the upstream end of the matrix section (40).
2. The heat-not-burn product according to claim 1, characterized in that: There are a plurality of air inlet holes (301), and the plurality of air inlet holes (301) are evenly spaced and arranged in the circumferential direction of the temperature reduction section (30).
3. The heat-not-burn product according to claim 2, characterized in that: The plurality of air inlet holes (301) are divided into a plurality of groups; the number of the air inlet holes (301) in each group is a plurality, and the air inlet holes in each group of the air inlet holes (301) are evenly spaced and arranged in the circumferential direction of the cooling section (30); the plurality of groups of the air inlet holes (301) are spaced and arranged in the axial direction of the cooling section (30).
4. The heat-not-burn product according to claim 1, characterized in that: The circumference of the air inlet hole (301) is greater than 0.1 mm.
5. The heat-not-burn product according to claim 1, characterized in that: The ventilation rate of the at least one air inlet (301) is between 20% and 50%, and / or the air intake volume is between 10 ml / s and 20 ml / s, and / or the suction resistance is between 600 Pa and 1200 Pa.
6. The heat-not-burn product according to claim 1, characterized in that: The distance between the at least one air inlet (301) and the downstream end of the filter section (20) is greater than or equal to 8 mm and less than or equal to 28 mm; And / or, the distance between the at least one air inlet (301) and the upstream end of the blocking section (50) is greater than or equal to 30 mm and less than or equal to 37 mm.
7. The heat-not-burn product according to claim 1, characterized in that: The invention also includes a cylindrical shell (10), wherein the shell (10) includes a first shell (11) and a second shell (12); the first shell (11) is arranged around the cooling section (30), the matrix section (40) and the blocking section (50); the second shell (12) is arranged around the filtering section (20) and at least part of the cooling section (30) and is arranged outside the first shell (11); the first shell (11) and the second shell (12) are respectively formed with through holes corresponding to the air inlet (301).
8. The heat-not-burn product according to any one of claims 1 to 7, characterized in that: A cooling layer (31) is provided on the inner wall of the cooling section (30).
9. The heat-not-burn product according to claim 8, characterized in that: The thickness of the cooling layer (31) is greater than 0.1 mm, and / or the cooling layer (31) is aluminum foil, polylactic acid film, or aluminum foil with at least one surface coated with polylactic acid film.
10. A heating without burning system, characterized in that: It comprises a heat-not-burn device (2) and the heat-not-burn product according to any one of claims 1 to 9, wherein the heat-not-burn device (2) is used for heating the heat-not-burn product.