WO2025091673A1 - Aerosol product and heat-not-burn system - Google Patents

Abstract

The present invention relates to an aerosol product and a heat-not-burn system. The aerosol product comprises a solid aerosol-generating section, a filter section and a paper tube, wherein the solid aerosol-generating section and the filter section are spaced apart from each other in the paper tube, and an aerosol channel is provided between the solid aerosol-generating section and the filter section; the solid aerosol-generating section comprises a columnar matrix body, with micropores being distributed in the matrix body; the matrix body comprises a downstream end and an upstream end which are located at two axial ends of the matrix body, the downstream end being opposite the filter section; the matrix body is provided with at least one aerosol flow hole extending in the axial direction of the matrix body, the aerosol flow hole at least running through the downstream end, and the micropores being in communication with each other and in communication with the aerosol flow hole so as to collect aerosol from the micropores into the aerosol flow hole; and a through hole in communication with the aerosol channel is provided in a side wall of the paper tube, and outside air can enter a cooling portion via the through hole and is mixed with the aerosol in the cooling portion, such that the temperature of the aerosol is lowered to an appropriate level to meet a user's vaping habit and avoid scalding the mouth due to excessively high aerosol temperature.

Description

Aerosol products and heat-not-burn systems Technical Field

The present invention relates to the field of heat without burning, and more particularly to an aerosol product and a heat without burning system.

Background Art

The aerosol produced by the cigarette cartridge of the aerosol product in the related art usually flows directly along the channel diameter toward the filter. The temperature of the newly produced aerosol is relatively high. If the residence time during the flow is short, it will cause the mouth to burn, reduce the comfort of the entrance, and affect the user's experience.

Summary of the invention

The technical problem to be solved by the present invention is to provide an aerosol product and a heat-not-burn system in view of the above-mentioned defects of the prior art.

The technical solution adopted by the present invention to solve the technical problem is: constructing an aerosol product, including a solid smoke-generating section, a sieving section, and a paper tube;

The solid smoke generating section and the screening section are arranged in the paper tube at intervals, and an air passage is axially penetrated between the solid smoke generating section and the screening section;

The solid smoking section comprises a columnar matrix body, micropores are scattered on the matrix body, the matrix body comprises a downstream end and an upstream end located at two axial ends thereof, and the downstream end is opposite to the sieving section, the matrix body is provided with at least one airflow hole extending along the axial direction thereof, the airflow hole at least passes through the downstream end, the micropores are connected to each other, and the airflow holes are connected to collect the aerosol in the micropores to the airflow holes;

A through hole communicating with the air passage is provided on the side wall of the paper tube.

In some embodiments, there are multiple through holes, and each of the through holes is distributed along the circumference of the paper tube.

In some embodiments, the distance from the through hole to the screening section is smaller than the distance from the through hole to the solid smoke generating section.

In some embodiments, the cross-section of the air flow hole is one of circular, elliptical, polygonal, and irregular shapes.

In some embodiments, the air flow holes have at least two different external dimensions in the axial direction of the matrix body.

In some embodiments, there is one air flow hole, and the air flow hole is a through hole or a blind hole; or, the number of the air flow holes is more than one, at least one of the air flow holes is a through hole, and/or, at least one of the air flow holes is a blind hole.

In some embodiments, the airway is formed by the solid smoke-generating section, the screening section, and the paper tube.

In some embodiments, the aerosol product includes a cooling element disposed between the solid smoke-generating section and the screening section, and at least one air channel is formed on the cooling element.

In some embodiments, at least one of the air passages is a groove located on the outer peripheral surface of the cooling element, and/or at least one of the air passages is a through hole located in the cooling element.

Another object of the present invention is to provide a heat-not-burn system, comprising a smoking device and an aerosol product as described above, wherein the aerosol product is configured to be partially inserted into the smoking device, and the through hole is located outside the smoking device.

The aerosol product of the present invention has the following beneficial effects: the generated aerosol is collected from the micropores to the airflow holes, and naturally gathered in the cooling part for temporary storage during the puffing interval, which assists in cooling and increasing the smoke concentration. The external air can enter the cooling part through the through hole and mix with the aerosol in the cooling part to reduce the temperature of the aerosol to a suitable temperature to meet the user's smoking habits, avoid the aerosol temperature being too high to burn the mouth, and can also avoid the aerosol generated by the solid smoking section being repeatedly heated during the puffing cycle to affect the taste.

BRIEF DESCRIPTION OF THE DRAWINGS

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

FIG1 is a schematic diagram of the three-dimensional structure of an aerosol product in an embodiment of the present invention;

FIG2 is a schematic cross-sectional view of the aerosol product in FIG1 ;

Fig. 3 is an electron microscope image of the smoking material of the solid smoking segment;

4 is a schematic diagram of the first embodiment of the solid smoke section when the shapes of the air flow holes at both ends are different;

5 is a schematic diagram of the second embodiment of the solid smoke section when the downstream end of the air flow hole is larger than the upstream end;

6 is a schematic diagram of the case where the downstream end of the airflow hole of the solid smoke generating section in the third embodiment is smaller than the upstream end;

7 is a schematic diagram of the air flow holes of the solid smoke generating section in the fourth embodiment combined with the second and third embodiments;

FIG8 is a cross-sectional schematic diagram of an aerosol product with a cooling member in another embodiment;

FIG9A is a schematic end view of a cooling member in one embodiment;

FIG. 9B is a schematic end view of a temperature-cooling component in another embodiment.

DETAILED DESCRIPTION

In order to have a clearer understanding of the technical features, purposes and effects of the present invention, specific embodiments of the present invention are now described in detail with reference to the accompanying drawings.

As shown in Figures 1, 2 and 8, an aerosol product 10 in a preferred embodiment of the present invention includes a solid smoking segment 1, a sieving segment 2, and a paper tube 3. The solid smoking segment 1 and the sieving segment 2 are arranged in the paper tube 3 at intervals, and a cooling section 4 is formed between the solid smoking segment 1 and the sieving segment 2. The cooling section 4 has an axially penetrating airway 411, which can temporarily store the aerosol generated by the solid smoking segment 1.

Furthermore, the solid smoke-generating segment 1 includes a columnar matrix body 11, on which micropores are dispersed. The matrix body 11 includes a downstream end A and an upstream end B located at both ends of its axial direction, and the downstream end is opposite to the screening segment 2, wherein the downstream end A and the upstream end B are named with reference to the aerosol flow direction. During the inhalation process, the aerosol generated by the solid smoke-generating segment 1 is transported from upstream to downstream, the downstream end A is the near-lip end, and the upstream end B is the far-lip end.

Here, the paper tube 3 is a cardboard tube. Different from the traditional method of using rolling paper, this embodiment uses the paper tube 3 as a connecting piece of the aerosol product 10. At the same time, the solid smoke segment 1 is an independent columnar and does not need to be filled. When assembling the aerosol product 10, it is only necessary to load the solid smoke segment 1 and the sieving segment 2 into the two ends of the paper tube 3 respectively. Therefore, the manufacturing process of the aerosol product 10 is simplified and the manufacturing cost is reduced.

The matrix body 11 is provided with an air flow hole 12 extending along its axial direction. The air flow hole 12 at least penetrates the downstream end A. The micropores are connected to each other and the air flow hole 12 is connected to collect the aerosol in the micropores to the air flow hole 12 .

A through hole 31 is provided on the side wall of the cooling part 4 corresponding to the paper tube 3, which connects the air flow hole 12 and the air channel 411 between the screening section 2. When the user inhales, the external air can enter the cooling part 4 through the through hole 31, and mix with the aerosol in the cooling part 4 to reduce the temperature of the aerosol. The size of the through hole 31 can be set according to demand to adjust the amount of air entering to meet the cooling demand of reducing the temperature to a suitable temperature, so as to meet the user's inhalation habits and avoid the aerosol temperature being too high to burn the mouth.

Preferably, a plurality of through holes 31 are distributed around the side wall of the paper tube 3 corresponding to the cooling part 4, so that external air can flow into the cooling part 4 from different directions, so that the air and the aerosol can be fully mixed, thereby improving the uniformity of cooling.

In addition, the cooling part 4 can also play the role of pre-storing aerosols. There will be a pause after the user's last inhalation. During this process, a part of the aerosol between the micropores of the matrix body 11 will naturally gather in the airflow holes 12 and be temporarily stored in the cooling part 4. During the puffing interval, it will naturally gather in the cooling part for temporary storage, which will assist in cooling and increase the smoke concentration. When the user smokes next time, the aerosol stored in the cooling part 4 will be inhaled first, and the new aerosol generated by the matrix body 11 will flow into the cooling part 4 for storage again with the airflow, which can also play the role of cooling the aerosol. During the puffing cycle, the aerosol generated by the solid smoking section 1 can be prevented from being repeatedly heated to affect the taste.

At the same time, in order to prevent the pre-stored aerosol from overflowing during the residence stage, the distance from the through hole 31 to the sieving section 2 can be made smaller than the distance from the through hole 31 to the solid smoke-generating section 1, and the distance from the through hole 31 to the matrix body 11 can be made as large as possible. The aerosol stored between the through hole 31 and the solid smoke-generating section 1 is not easy to overflow, and the air can be mixed with the pre-stored aerosol when flowing to the sieving section 2 and then flow to the sieving section 2.

Generally, the cross section of the airflow hole 12 can be one of a circular, elliptical, polygonal, and irregular shape. The number of the airflow hole 12 can be one, and the one airflow hole 12 can be a through hole or a blind hole. In other embodiments, the number of the airflow hole 12 can also be more than one, wherein the airflow holes 12 can all be through holes, or the airflow holes 12 can all be blind holes, or the matrix body 11 is provided with both through hole airflow holes 12 and blind hole airflow holes 12. In the heat-not-burn aerosol product of this embodiment, the downstream end A of the airflow hole 12 is open opposite to the sieving section 2, so that the aerosol can flow from the airflow hole 12 to the cooling portion 4 and the sieving section 2.

Exemplarily, as shown in FIG3 , the porosity of the micropores is 20%-80%, and the pore size is 50nm-20μm. The micropores are connected to each other and to the airflow holes 12 to collect the aerosols in the micropores to the airflow holes 12. After the solid smoking segment 1 is heated, the aerosol generated by the heating can enter the adjacent airflow holes 12 through the micropores and gather. The aerosols generated at different positions flow into the cooling part 4 and mix to make the aerosol more uniform. Then, they flow from the airflow holes 12 to the cooling part 4. The cooling part 4 can play a role in centralized storage and cooling of the aerosols. When the user smokes, he will first inhale the aerosol in the cooling part 4. After the aerosol in the cooling part 4 is sucked away, the newly generated aerosol will flow back into the cooling part 4, which can effectively prevent the aerosol from flowing directly into the user's mouth to avoid burning the mouth. At the same time, it also improves the taste of the aerosol.

Specifically, the solid smoking segment 1 is mixed with tobacco fibers or other plant fibers, and then compressed and demolded to form an integrally formed solid smoking segment 1 .

In the first embodiment, as shown in FIG4 , the airflow hole 12 runs from the downstream end A to the upstream end B, and the cross-sections of the airflow hole 12 at different axial positions include two or more external dimensions. As shown in the figure, the external dimensions here may refer to specific shapes with different external dimensions, one end being circular and the other end being square. In other embodiments, the cross-sectional shapes of the holes at different axial positions of the same airflow hole 12 may be circular, polygonal, elliptical, multi-pointed star, irregular shapes, etc., respectively, and the airflow hole 12 may be formed by combining, such as one end being square and the other end being elliptical, or one end being polygonal and the other end being multi-pointed star. As shown in the figure, it may also refer to different sizes under the same shape, so that the airflow hole 12 may have different cross-sectional sizes in the axial direction, such as a stepped hole-shaped airflow hole 12. When the aerosol flows after entering the airflow hole 12, it is affected by the size change of the airflow hole 12, and the flow velocity of the aerosol may also change, thereby achieving the purpose of changing the flow velocity of the aerosol in the airflow hole 12, allowing the aerosol to be mixed and making the aerosol more uniform.

In the second embodiment, as shown in FIG. 5 , part of the air flow hole 12 may penetrate from the downstream end A to the upstream end B, and the cross-sectional shape of the air flow hole 12 gradually decreases from the downstream end A toward the upstream end B, forming a conical channel with a large downstream end and a small upstream end.

In the third embodiment, as shown in FIG6 , part of the air flow hole 12 may penetrate from the downstream end A to the upstream end B, and the cross-sectional shape of the air flow hole 12 gradually increases from the downstream end A toward the upstream end B, forming a tapered channel with a small downstream end and a large upstream end.

In the fourth embodiment, as shown in Figure 7, part of the air flow hole 12 runs through the downstream end A to the upstream end B, and the cross-sectional shape of the part of the air flow hole 12 gradually decreases from the downstream end A to the upstream end B, and the cross-sectional shape of the part of the air flow hole 12 gradually increases from the downstream end A to the upstream end B.

Correspondingly, the airflow holes 12 of the various solid smoking segments 1 are the same, including the cross-sectional shape and size of the holes. In other embodiments, the airflow holes 12 include two or more types, and the cross-sectional shapes of different types of airflow holes 12 are different. It can be understood that the cross-sectional shapes of different types of airflow holes 12 may be different, or the cross-sectional shapes and cross-sectional shapes of different types of airflow holes 12 are different, forming a variety of airflow holes 12.

The outer surface of the matrix body 11 can be cylindrical or flat-mouthed, such as ellipsoidal or square, so as to be conveniently made into aerosol products of corresponding shapes for users to hold in their mouths and breathe in. During the use of the aerosol products, the aerosol is mixed and cooled to a suitable temperature, and the taste is more uniform, which reduces the interference in the flow process after the aerosol is generated.

In the above embodiment, the cooling part 4 is a hollow cavity, that is, after the solid smoke section 1 and the sieving section 2 are respectively installed at both ends of the paper tube 3, the solid smoke section 1, the sieving section 2, and the paper tube 3 are enclosed to form an airway 411, and no additional components are needed to form a cavity to store aerosol.

It can be understood that, as shown in Figure 8, the aerosol product can also include a cooling component 41 arranged between the solid smoking section 1 and the screening section 2. The cooling component 41 is provided with an air channel 411 connecting the air flow holes 12, the screening section 2, and the through hole 31. The air channel 411 can store aerosol and allow the aerosol to flow toward the screening section 2. External air flows in through the through hole 31 and cools the aerosol after mixing with the aerosol.

In some embodiments, the air channel 411 includes one or more air channels, as shown in FIG9A , where a portion of the air channels 411 may be located at the periphery of the cooling element 41, formed as grooves located at the periphery of the cooling element 41, and a portion of the air channels 411 may be through holes located in the cooling element 41, or air channels 411 may be provided at both the periphery and the middle of the cooling element 41. Alternatively, as shown in FIG9B , all air channels 411 may be through holes located in the cooling element 41. When there are multiple air channels 411, air channels 411 may be provided at the center and around the cooling element 41.

It can be understood that the above-mentioned technical features can be used in any combination without limitation.

The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims (10)

An aerosol product, characterized in that it comprises a solid smoke-generating section (1), a sieving section (2), and a paper tube (3); The solid smoke generating section (1) and the sieving section (2) are arranged in the paper tube (3) at intervals, and an air passage (411) is axially penetrated between the solid smoke generating section (1) and the sieving section (2); The solid smoking section (1) comprises a columnar matrix body (11), micropores are scattered on the matrix body (11), the matrix body (11) comprises a downstream end (A) and an upstream end (B) located at two axial ends thereof, and the downstream end is opposite to the sieving section (2), the matrix body (11) is provided with at least one airflow hole (12) extending along its axial direction, the airflow hole (12) at least passes through the downstream end (A), the micropores are connected to each other, and the airflow holes (12) are connected to each other, so that the aerosol in the micropores is collected in the airflow hole (12); A through hole (31) communicating with the air passage (411) is provided on the side wall of the paper tube (3). The aerosol product according to claim 1, characterized in that there are a plurality of through holes (31), and each of the through holes (31) is distributed along the circumference of the paper tube (3). The aerosol product according to claim 1, characterized in that the distance from the through hole (31) to the sieve section (2) is smaller than the distance from the through hole (31) to the solid smoke-generating section (1). The aerosol product according to claim 1, characterized in that the cross-section of the airflow hole (12) is one of a circular, elliptical, polygonal, and irregular shape. The aerosol product according to claim 1, characterized in that the air flow holes (12) have at least two different external dimensions in the axial direction of the matrix body (11). The aerosol product according to claim 1, characterized in that there is one airflow hole (12), and the airflow hole (12) is a through hole or a blind hole; or, the number of the airflow holes (12) is more than one, at least one of the airflow holes (12) is a through hole, and/or at least one of the airflow holes (12) is a blind hole. The aerosol product according to any one of claims 1 to 6, characterized in that the airway (411) is formed by enclosing the solid smoke-generating section (1), the sieving section (2), and the paper tube (3). The aerosol product according to any one of claims 1 to 6, characterized in that the aerosol product comprises a cooling element (41) arranged between the solid smoke generating section (1) and the screening section (2), and at least one air channel (411) is formed on the cooling element (41). The aerosol product according to claim 8, characterized in that at least one of the air channels (411) is a groove located on the outer peripheral surface of the cooling component (41), and/or at least one of the air channels (411) is a through hole located in the cooling component (41). A heat-not-burn system, characterized in that it comprises a smoking article and an aerosol product according to any one of claims 1 to 9, wherein the aerosol product is configured to be partially inserted into the smoking article, and the through hole (31) is located outside the smoking article.