WO2024001795A1

WO2024001795A1 - Heat-not-burn aerosol generating product

Info

Publication number: WO2024001795A1
Application number: PCT/CN2023/100284
Authority: WO
Inventors: 刘刚; 林志文; 李航; 徐伟; 李景权; 李涛; 鲁媛; 汤建国; 梁峰
Original assignee: 深圳麦时科技有限公司
Priority date: 2022-07-01
Filing date: 2023-06-14
Publication date: 2024-01-04
Also published as: CN218354569U

Abstract

A heat-not-burn aerosol generating product, comprising a filter section (1), an airflow channel section (2), an aerosol-generating material section (3) and a wrapping layer (4), wherein the filter section (1), the airflow channel section (2) and the aerosol-generating material section (3) are sequentially connected to each other, and the wrapping layer (4) is at least arranged outside the airflow channel section (2); the airflow channel section (2) is axially provided with a central air channel (21) in the center, a gap (23) is provided between the airflow channel section (2) and the wrapping layer (4), and an air inlet (22) is provided at the position of the wrapping layer (4) corresponding to the airflow channel section (2); and during operation, external air enters the central air channel (21) through the air inlet (22) via the gap (23). By means of the air intake mode where the air inlet (22) is in communication with the gap (23), airflow is more stable, and the suction stability is better. In addition, generated aerosol is extracted by air at an intersection of the airflow channel section (2) and the aerosol-generating material section (3), most of the air does not directly pass through the aerosol-generating material section (3) for heat exchange, and a substrate in the aerosol-generating material section (3) is not disturbed by the airflow, such that the aerosol has a moderate temperature, is relatively pure and has an excellent taste.

Description

Heat-not-burn aerosol-generating products

Technical field

The present invention relates to the technical field of aerosol generation, and in particular to a heat-not-burn aerosol-generating product.

Background technique

Heat-not-burn aerosol-generating products generate aerosols by heating the aerosol-generating material rather than burning it. When this kind of aerosol-generating material is smoked with an electronic heating device, consumers can not only feel the fragrance of the aerosol-generating material, but also Moreover, the heat-not-burn aerosol-generating product is heated under low-temperature conditions, which can greatly reduce the undesirable substances produced when traditional cigarettes are burned at high temperatures.

During the suction process of current heat-not-burn aerosol-generating products, air enters from the end of the aerosol-generating product, passes through the heated material, and takes out the aerosol generated by distillation and cracking of the heated material, and then passes through the transmission structure. Enter the smoker's mouth. During the air flow process, the air passes through the substrate in the heating zone, exchanges heat in the form of thermal convection, and carries out aerosols. However, when external cold air mixes into the substrate heating zone, it will inevitably cause the temperature of the heated substrate to drop, causing the substrate to The temperature in the heating zone fluctuates greatly. The types and degrees of cracking reactions produced by materials at different temperatures are different, and the aroma substances released are also different, resulting in poor suction consistency.

Contents of the invention

The technical problem to be solved by the present invention is to provide a heat-not-burn aerosol-generating product that has a constant temperature in the heating zone, large smoke, good sustainability, and good consistency in the front and back in view of the shortcomings of the existing technology.

The technical solution adopted by the present invention to solve the technical problem is to construct a heated non-combustible aerosol-generating product, including a filter section, an airflow channel section, an aerosol-generating material section and a wrapping layer. The filter section, the airflow The channel section and the aerosol generating material section are connected in sequence, and the wrapping layer is at least arranged outside the air flow channel section;

At least one central air channel is disposed axially in the center of the air flow channel section. There is a gap between the air flow channel section and the wrapping layer. The wrapping layer is provided with an air inlet at a position corresponding to the air flow channel section. The air inlet is connected to the gap; during operation, external air enters the central airway through the air inlet and the gap.

Preferably, the gap communicates with the central air channel at the interface between the aerosol generating material section and the air flow channel section.

Preferably, the air flow channel section is provided with at least one groove, and the gap is formed between at least one groove and the wrapping layer.

Preferably, at least one of the grooves is axially provided on the outer wall of the air flow channel section, and the groove extends from an end of the air flow channel section close to the filter section to an end close to the aerosol generating material section. .

Preferably, the length of the groove is equal to the height of the air flow channel section.

Preferably, a blocking component is provided between the filter section and the air flow channel section, and an air guide hole is provided on the blocking component, and the air guide hole is connected to the central air channel.

Preferably, the air flow channel section includes a first air flow channel section and a second air flow channel section, the first air flow channel section is connected to the filter section, and the second air flow channel section is connected to the aerosol generating material section. connected; the outer wall of the first airflow channel section is in contact with the inner wall of the wrapping layer, and the gap is provided between the second airflow channel section and the wrapping layer.

Preferably, the length of at least one of the grooves is equal to the height of the second airflow channel section.

Preferably, at least one central hole is provided in the center of the air flow channel section, and at least one central hole penetrates the air flow channel section to form the central air channel.

Preferably, a filter element is provided in the central air passage.

Preferably, the material of the filter element includes any one of acetate fiber, polypropylene fiber, polylactic acid fiber, plant polysaccharide and plant porous material.

Preferably, the wrapping layer includes a side wall and a bottom wall, the side wall wraps the side of the airflow channel section and the aerosol-generating material section, and the bottom wall wraps the aerosol-generating material section away from the The end of the air flow channel section.

Preferably, the bottom wall of the wrapping layer is provided with an air inlet hole, and the air inlet hole is in air flow communication with the central air channel.

The implementation of the present invention has the following beneficial effects: the air inlet method of the present invention connects the air inlet and the gap, making the air flow more stable, the suction stability is better, and the air inlet hole or air inlet groove is not easily deformed when heated; the air is The generated aerosol is extracted at the intersection of the airflow channel section and the aerosol-generating material section. Most of the air does not directly pass through the aerosol-generating material section for heat exchange. The base material of the aerosol-generating material section is not disturbed by the air flow, so The aerosol has a moderate temperature, is relatively pure, and has a good taste.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and examples. In the accompanying drawings:

Figure 1 is a schematic structural diagram of an embodiment of the heat-not-burn aerosol-generating product of the present invention;

Figure 2 is a schematic structural diagram of another embodiment of the heat-not-burn aerosol-generating product of the present invention;

Figure 3 is a schematic structural diagram of an embodiment of the air flow channel section of the present invention;

Figure 4 is a schematic structural diagram of another embodiment of the air flow channel section of the present invention;

Figure 5 is a top view of the airflow channel section of Figure 4;

Figure 6 is a bottom view of the airflow channel section of Figure 4;

Figure 7 is a schematic structural diagram of some other embodiments of the heat-not-burn aerosol-generating product of the present invention;

Figure 8 is a top view of the sealing firmware of the present invention.

Implementation

In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings. In the following description, what needs to be understood is "front", "back", "up", "down", "left", "right", "vertical", "horizontal", "vertical", "horizontal", The orientations or positional relationships indicated by "top", "bottom", "inner", "outer", "head", "tail", etc. are based on the orientation or positional relationship shown in the drawings and are constructed and operated in specific orientations. It is only for the convenience of describing the present technical solution, and does not indicate that the device or element referred to must have a specific orientation, and therefore cannot be understood as a limitation of the present invention.

It should also be noted that, unless otherwise expressly stipulated and limited, terms such as "installation", "connection", "connection", "fixing" and "setting" should be understood in a broad sense. For example, it can be a fixed connection or a fixed connection. It can be detachably connected or integrated; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements or an interaction between two elements. When an element is referred to as being "on" or "under" another element, it can be "directly" or "indirectly" on the other element or one or more intervening elements may also be present. The terms "first", "second", "third", etc. are only used to facilitate the description of the present technical solution and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of indicated technical features. Therefore, Features defined as "first," "second," "third," etc. may explicitly or implicitly include one or more of these features. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

In the following description, specific details such as specific system structures and technologies are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present invention. However, it will be apparent to those skilled in the art that the present invention may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the present invention in unnecessary detail.

Referring to Figures 1 to 2, a heat-not-burn aerosol-generating product of the present invention is shown. The structure of the heat-not-burn aerosol-generating product can be divided into three sections, including a filter section 1, an air flow channel section 2, and an air flow channel section 2. The sol-generating material section 3 is connected in sequence, and the filtering section 1, the airflow channel section 2 and the aerosol-generating material section 3 are connected in sequence. The airflow channel section 2 may also be called an aerosol extraction member, and is intended to extract the aerosol generated by heating the aerosol-generating material section 3 . In addition, the heat-not-burn aerosol-generating product further includes a wrapping layer 4 , and the wrapping layer 4 is at least disposed outside the airflow channel section 2 . The wrapping layer 4 shown in Figures 1 to 2 is in its unfolded state. In this embodiment, the filter section 1, the air flow channel section 2 and the aerosol generating material section 3 are all accommodated in the wrapping layer 4. It should be noted that the wrapping layer 4 only needs to wrap at least the air flow channel section 2 . In other embodiments, the filter section 1 , the air flow channel section 2 and the aerosol generating material section 3 can be wrapped by different packaging materials and then assembled into one body. , can be selected according to the actual situation, and the present invention does not limit this.

Specifically, the material of the filter section 1 includes any one of acetate fiber, polypropylene fiber, paper filter rod, reconstituted tobacco leaves, polylactic acid fiber, resin, plant polysaccharide, resin and plant porous materials, and the aerosol is processed Filtration and adsorption can achieve the effect of improving aerosol purity and comfort. It is understandable that the material of the filter section 1 can also include a combination of two or more of the above materials. The material of the air flow channel section 2 can generally be made of silicone. Furthermore, the aerosol-generating material section 3 can also be called a base material section, and the material of the aerosol-generating material section 3 can include any one of solid base materials such as filaments, sheets, granules, powders, and pastes. or more.

At least one central air channel 21 is provided in the center of the air flow channel section 2. Furthermore, at least one central air channel 21 is provided in the center of the air flow channel section 2 along the axial direction. Specifically, at least one central hole is provided in the center of the air flow channel section 2 , and at least one central hole axially penetrates the air flow channel section 2 to form a central air channel 21 . There is a gap 23 between the airflow channel section 2 and the wrapping layer 4, and the gap 23 forms a side flow airway; the gap 23 is in airflow communication with the central airway 21. Specifically, the gap 23 is between the aerosol generating material section 3 and the airflow channel section. 2 is connected to the central air channel 21 at the interface; the wrapping layer 4 is provided with an air inlet 22 at a position corresponding to the air flow channel section 2. Furthermore, the air inlet 22 includes an air inlet hole 221 or an air inlet slot 222. Holes 221 or air inlet grooves 222 are provided at any position of the wrapping layer 4 wrapped around this part of the air flow channel section 2 to form an air inlet channel and communicate with outside air. The air inlet channel is connected with the side flow air channel, and the external air enters the central air channel 21 through the air inlet channel. During suction, external air is sucked into the air inlet channel from the air inlet hole 221 or the air inlet slot 222, and the air enters the air flow channel section 2 downward along the side flow air channel. Along with the side flow air channel, it meets the aerosol generating material section at the bottom of the air flow channel section 2. 3 enters the central airway 21 at the intersection, where a negative pressure is formed to extract the aerosol generated in the aerosol-generating material section 3, and then passes through the central airway 21 of the airflow channel section 2, and then enters the pump through the filter section 1 Inhaler's mouth.

Furthermore, the cross-sectional shape of the central airway 21 can be set to any one of circular, rectangular, zigzag, pentagram, elliptical, honeycomb, etc. shapes to extract aerosol.

3 , in this embodiment, the cross-sectional shape of the central airway 21 is set to a zigzag shape. Furthermore, the air flow channel section 2 is provided with at least one groove, and a gap 23 is formed between the at least one groove and the inner wall of the wrapping layer 4. Several gaps 23 form a side flow air channel. In this embodiment, at least one groove is axially provided on the outer wall of the airflow channel section 2 , and the groove extends from an end of the airflow channel section 2 close to the filter section 1 to an end close to the aerosol generating material section 3 . Specifically, the grooves can be vertically extended or spirally extended from the end of the airflow channel section 2 close to the filter section 1 to the end close to the aerosol generating material section 3 , and the length of the groove is approximately equal to the height of the airflow channel section 2 , that is, the airflow channel The vertical direction of the outer wall of section 2 is completely provided with this groove structure.

As shown in Figures 4 to 6, in some embodiments, the air flow channel section 2 may include a first air flow channel section 201 and a second air flow channel section 202. The first air flow channel section 201 is connected to the filter section 1, and the second air flow channel section 202 is connected to the filter section 1. The channel section 202 is connected to the aerosol generating material section 3; the outer wall of the first airflow channel section 201 is in contact with the inner wall of the wrapping layer 4, and the gap 23 is provided between the second airflow channel section 202 and the wrapping layer 4. It should be noted that in this embodiment, the first air flow channel section 201 refers to a section located downstream of the air flow channel section 2, that is, a section connected to the filter section 1; the second air flow channel section 202 refers to a section located downstream of the air flow channel section 2. A section upstream of the channel section 2, that is, a section connected to the aerosol generating material section 3. Therefore, in this embodiment, only the second airflow channel section 202 is provided with grooves. Furthermore, the length of at least one groove is substantially equal to the height of the second airflow channel section 202 . The second airflow channel section 202 is provided with a groove. A gap 23 is formed between the position of the groove and the wrapping layer 4, and several gaps 23 form a side flow air channel; and there is no groove on the first air flow channel section 201, and the first air flow channel section 201 is directly connected to the wrapping layer 4 fit, so the cross-sectional area of the first air flow channel section 201 is larger than the cross-sectional area of the second air flow channel section 202. The purpose is to prevent the air entering the air flow channel section 2 from the air inlet hole or air inlet groove from flowing directly upward into the filter section 1. Affect the taste; ensure that the air entering the air flow channel section 2 from the air inlet or air inlet groove flows downward along the side flow air channel, and enters the central air channel 21 at the intersection of the bottom of the air flow channel section 2 and the aerosol generating material section 3. Negative pressure is formed here to extract the aerosol generated in the aerosol-generating material section 3, and then pass through the central airway 21 of the airflow channel section 2, and then enter the mouth of the smoker through the filter section 1.

Further, as shown in Figure 7, in some other embodiments, the structure of this embodiment is similar to the structure of the embodiment shown in Figure 1. The difference is that in this embodiment, there is also a filter section 1 and an air flow channel section 2. The blocking firmware 5 is provided with an air guide hole 51 , and the air guide hole 51 is connected with the central airway 21 . Specifically, as shown in FIG. 8 , in this embodiment, the shape of the air guide hole 51 in the center of the blocking firmware 5 is a plum blossom shape; understandably, in some other embodiments, the air guide hole 51 in the center of the blocking firmware 5 is The shape may be gear-shaped or other shapes, which are not limited here.

It can be understood that the function of the blocking member 5 is similar to the function of the first air flow channel 201 in the above embodiment, and is also to prevent the air entering the air flow channel section 2 from the air inlet hole or the air inlet groove from flowing directly upward into the filter section 1 , affecting the taste; the outer wall of the sealing firmware 5 fits the inner wall of the wrapping layer 4, and the cross-sectional area of the blocking firmware is larger than the cross-sectional area of the airflow channel section 2, ensuring that the air entering the airflow channel section 2 from the air inlet hole or air inlet groove is completely along the The side flow air channel flows downward and enters the central air channel 21 at the intersection of the bottom of the air flow channel section 2 and the aerosol generating material section 3, where a negative pressure is formed to extract the aerosol generated by the aerosol generating material section 3, and then Then it passes through the central airway 21 of the airflow channel section 2, and then enters the smoker's mouth through the filter section 1.

Furthermore, a filter material can be optionally added to the central air channel 21 of the airflow channel section 2 to form a filter element to filter aerosol; the material of the filter element can be cellulose acetate, polylactic acid fiber, plant polysaccharide or plant porous material. The aerosol generated by the aerosol generating material section 3 can first pass through the filter material provided in the central airway 21 to complete preliminary filtration, and then the preliminarily filtered aerosol can be subjected to secondary filtration through the filter section 1, and finally enter the pump. Inhaler's mouth.

Further, the wrapping layer 4 includes side walls and a bottom wall. The side walls wrap the filter section 1, the air flow channel section 2 and the sides of the aerosol generating material section 3. The bottom wall of the wrapping layer 4 wraps the aerosol generating material section 3 away from the air flow channel. end of segment 2. Specifically, the bottom wall of the wrapping layer 4 can be set as a sealing structure, so that the bottom of the heat-not-burn aerosol-generating product is sealed and airtight, and only its side part is air-intaken. The aerosol-generating material is heated in an oxygen-free environment, making it purer. . In another embodiment, the bottom wall of the wrapping layer 4 is provided with an air inlet, and the air inlet is in air flow communication with the central air channel 21 so that the bottom and sides of the heated non-burning aerosol-generating product can receive air at the same time. Helps increase atomization volume, reduce suction resistance and mouth temperature when smoking.

Furthermore, the shape of the wrapping layer 4 may be a sheet or a tube, and the material of the wrapping layer 4 includes any one or more of paper, tin foil, and aluminum foil.

Specifically, the wrapping layer 4 is in the shape of a flexible sheet, which can be formed by rolling paper. When it is unfolded, it can be in the shape of a paper sheet. When it is bent, it can form a sheet that can integrally wrap the filter section 1, the airflow channel section 2 and the aerosol. A hollow columnar structure of material segment 3 is generated. In another embodiment, the wrapping layer 4 can be tubular, that is, a preformed paper tube. The tubular wrapping layer 4 is integrally placed outside the filter section 1 , the airflow channel section 2 and the aerosol generating material section 3 .

As shown in Figure 1, in some embodiments, the structure of the heat-not-burn aerosol-generating product can be divided into three sections, including a filter section 1, an airflow channel section 2, and an aerosol-generating material section 3; wherein, the filter section 1 The length is 10mm, its material is acetate fiber, and its suction resistance is 400Pa; the length of the airflow channel section 2 is 23mm, the outer wall of the airflow channel section 2 is provided with 24 grooves, and the depth of the grooves is 0.4mm; the airflow channel section 2 The center of 2 is provided with an axially penetrating central air channel 21. The cross section of the central air channel 21 is circular, its diameter is 2.5mm, and its material is silica gel; the wrapping layer 4 is paper material, which is wrapped around the filter section 1, The outer layers of the airflow channel section 2 and the aerosol generating material section 3, the thickness of the wrapping layer 4 is 0.4mm, and its bottom wall is a sealed structure, the bottom wall is sealed and airtight, only the side walls are air-inlet, the aerosol generating material section 3 The base material inside is heated in an oxygen-free environment and is purer; the wrapping layer 4 is provided with an air inlet hole at a position corresponding to the air flow channel section 2, and the air inlet hole is located 25mm from the bottom of the aerosol generating material section 3; the air inlet hole The number of settings can be 8, the shape is circular, the diameter is 0.4mm, and can be evenly distributed at circumferential intervals, or can be set at any position on the air flow channel section 2, and there is no specific limit here; aerosol generating material The material of section 3 is tobacco flakes, that is, reconstituted tobacco leaves, and the length of section 3 of aerosol-generating material is 12 mm.

As shown in Figure 2, in other embodiments, the length of the filter section 1 is 7mm, its material is acetate fiber, and its suction resistance is 500Pa; the length of the airflow channel section 2 is 23mm, and 16 holes are provided on the surface of the airflow channel section 2. grooves, the depth of each groove is 0.5mm; the center of the air flow channel section 2 is provided with an axially penetrating central air channel 21, the cross section of the central air channel 21 is a five-pointed star, and its material is silica gel; the wrapping layer 4 is paper material with a thickness of 0.15mm. The bottom wall of wrapping layer 4 is equipped with air inlets to ventilate to the outside. The bottom wall and side walls are air inlet at the same time, which helps to increase the amount of atomization and reduce suction resistance and mouth entry. temperature; the wrapping layer 4 is provided with an air inlet hole at a position corresponding to the air flow channel section 2, and the position of the air inlet hole is 30mm from the bottom of the aerosol generating material section 3; the number of air inlet holes can be 5, and their shape is rectangular , the length of the rectangular air inlet holes is 1.5mm and the width is 0.5mm; they can be evenly distributed at circumferential intervals, or can be set at any position on the airflow channel section 2, and are not specifically limited here; the aerosol generating material section 3 The material is shredded tobacco, and the length of the aerosol generating material section 3 is 15mm.

When implementing the present invention for suction, air is sucked into the air inlet channel formed by the groove and the inner wall of the wrapping layer 4 from the air inlet hole or air inlet groove, and the aerosol generated by the aerosol generating material section 3 is extracted, and most of the air is There is no heat exchange directly through the aerosol-generating material section 3, and the base material of the aerosol-generating material section 3 is not disturbed by the air flow, so the aerosol has a moderate temperature, is relatively pure, and has a good taste. In addition, the air intake method through the air inlet hole or the air inlet groove connected to the groove, compared with the conventional method of laser drilling of cigarettes or mechanical drilling of the filter, the air flow is more stable, the suction stability is better, and The air inlet holes or air inlet grooves are not easily deformed during heating.

It can be understood that the above embodiments only express the preferred embodiments of the present invention, and their descriptions are relatively specific and detailed, but they cannot be understood as limiting the patent scope of the present invention; it should be noted that for those of ordinary skill in the art, In other words, without departing from the concept of the present invention, 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 present invention; therefore, anything falling within the scope of the claims of the present invention All equivalent transformations and modifications shall fall within the scope of the claims of the present invention.

Claims

A heat-not-burn aerosol-generating product, characterized in that it includes a filter section (1), an airflow channel section (2), an aerosol-generating material section (3) and a wrapping layer (4). The filter section (1) ), the air flow channel section (2) and the aerosol generating material section (3) are connected in sequence, and the wrapping layer (4) is at least provided outside the air flow channel section (2);

At least one central air channel (21) is disposed axially in the center of the air flow channel section (2). There is a gap (23) between the air flow channel section (2) and the wrapping layer (4). The wrapping layer (4) An air inlet (22) is provided at a position corresponding to the air flow channel section (2), and the air inlet (22) is connected to the gap (23); during operation, external air passes through the inlet. The air port (22) enters the central airway (21) through the gap (23).
The heat-not-burn aerosol-generating product according to claim 1, characterized in that the gap (23) is connected at the intersection of the aerosol-generating material section (3) and the air flow channel section (2). The central airway (21).
The heat-not-burn aerosol-generating product according to claim 1, characterized in that the air flow channel section (2) is provided with at least one groove, and at least one of the grooves and the wrapping layer (4) The gap (23) is formed between them.
The heat-not-burn aerosol-generating product according to claim 3, characterized in that at least one of the grooves is axially disposed on the outer wall of the air flow channel section (2), and the groove is formed by the air flow. The channel section (2) extends from one end close to the filter section (1) to an end close to the aerosol generating material section (3).
The heat-not-burn aerosol-generating product according to claim 4, characterized in that the length of the groove is equal to the height of the air flow channel section (2).
The heat-not-burn aerosol-generating product according to claim 3 or 4, characterized in that a blocking firmware (5) is provided between the filter section (1) and the air flow channel section (2), The blocking fixture (5) is provided with an air guide hole (51), and the air guide hole (51) is connected with the central airway (21).
The heat-not-burn aerosol-generating product according to claim 3, characterized in that the air flow channel section (2) includes a first air flow channel section (201) and a second air flow channel section (202), and the third air flow channel section (202) An air flow channel section (201) is connected to the filter section (1), and the second air flow channel section (202) is connected to the aerosol generating material section (3); the first air flow channel section (201) The outer wall is in contact with the inner wall of the wrapping layer (4), and the gap (23) is provided between the second airflow channel section (202) and the wrapping layer (4).
The heat-not-burn aerosol-generating product according to claim 7, characterized in that the length of at least one of the grooves is equal to the height of the second airflow channel section (202).
The heat-not-burn aerosol-generating product according to claim 1, characterized in that at least one central hole is provided in the center of the air flow channel section (2), and at least one central hole penetrates the air flow channel section (2) ) to form the central airway (21).
The heat-not-burn aerosol-generating product according to claim 1, characterized in that a filter element is provided in the central air channel (21).
The heat-not-burn aerosol-generating product according to claim 10, characterized in that the material of the filter element includes any one of acetate fiber, polypropylene fiber, polylactic acid fiber, plant polysaccharide and plant porous material.
The heat-not-burn aerosol-generating product according to claim 1, wherein the wrapping layer (4) includes a side wall and a bottom wall, and the side wall wraps the airflow channel section (2) and the The bottom wall wraps the side of the aerosol-generating material section (3) away from the end of the aerosol-generating material section (3) away from the airflow channel section (2).
The heat-not-burn aerosol-generating product according to claim 12, characterized in that the bottom wall of the wrapping layer (4) is provided with an air inlet hole, and the air inlet hole is connected with the central air channel (21) Airflow connection.