Aerosol generating product

Abstract

An aerosol generating product, comprising a matrix section (1), and a rectifying section (2) provided downstream of the matrix section (1), wherein the rectifying section (2) comprises a rectifying unit (21); the rectifying unit (21) comprises a hollow tube body (211) and a tube cap (212); at least one end of the hollow tube body (211) is provided with the tube cap (212), and the tube cap (212) covers a tube opening of the hollow tube body (211); and the tube cap (212) protrudes out of the hollow tube body (211) or is recessed in the hollow tube body (211), and the tube cap (212) is provided with at least one air output hole (2121). By means of providing the rectifying unit (21), the aerosol generating product can effectively reduce the temperature of an aerosol and can improve the suction comfort. In addition, the flow rate of the aerosol can be further increased, and the retention time of the aerosol in a filter section (3) is decreased, thereby reducing the phenomenon of aerosol deposition and improving the utilization rate of effective substances in a cigarette.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This application claims priority of Chinese Patent Application No. 2022231499783, filed on November 24, 2022, entitled "AEROSOL GENERATING PRODUCT", the entire content of which is incorporated herein by reference in its entirety.TECHNICAL FIELD

[0002] The present application relates to the technical field of heat-not-burn cigarettes, and in particular to an aerosol generating product.BACKGROUND

[0003] Heat-not-burn technology uses a heating element to bake aerosol generating products containing raw materials such as roots, stems, or leaves of plants at a low temperature, so as to generate aerosol for users to inhale. Currently, heat-not-burn aerosol generating products generally have the problem of high temperature of smoke, which brings smoke irritation and a burning sensation, thereby reducing the user's inhalation experience. Therefore, how to reduce the temperature of smoke of the aerosol generating products is a key technology for heat-not-burn products.

[0004] Chinese patent CN104203015 discloses an aerosol generating product including an aerosol cooling unit. The cooling unit of the aerosol generating product is composed of a pleated polylactic acid film layer. Chinese patent CN107259638A discloses a low temperature cigarette with functions of reducing the temperature of smoke and enhancing aroma, which includes a film layer filter rod made of materials such as polyvinyl chloride and polylactic acid. The above-mentioned rod that can reduce the temperature of smoke mainly absorbs heat through the glass transition of polymer materials, that is, transition from a glassy state to a high elastic state, thereby reducing the temperature of smoke of smoking products. However, the problem is that when the polymer undergoes the glass transition, melting or melt bonding phenomena will occur. Therefore, the polymer material at an end of the aerosol cooling unit that first contacts the smoke will immediately become severely sticky and be collapsed, which blocks a porous channel, so that the smoke cannot smoothly flow through an interior of the pleated polymer, reducing a cooled surface area, resulting in excessively high temperature of smoke, and affecting the consumer's use experience.SUMMARY

[0005] Based on this, it is necessary to provide an aerosol generating product that can effectively reduce a temperature of an aerosol and improve the comfort of inhalation to address the above-mentioned technical problem.

[0006] The present application provides an aerosol generating product, which includes a substrate section and an airflow arrangement section arranged downstream of the substrate section. The airflow arrangement section includes an airflow arrangement unit, the airflow arrangement unit includes a hollow tube body and a tube cap, at least one end of the hollow tube body is provided with the tube cap, the tube cap covers a tube opening of the hollow tube body, the tube cap protrudes outward from the hollow tube body or is recessed into the hollow tube body, and the tube cap is provided with at least one air outlet hole.

[0007] In some embodiments, the tube cap is integrally formed with the hollow tube body.

[0008] In some embodiments, the tube cap and the hollow tube body are formed in sections and connected to form the airflow arrangement unit.

[0009] In some embodiments, the airflow arrangement section further includes a wrapping layer wrapped around an outer side of the airflow arrangement unit.

[0010] In some embodiments, an airflow channel is formed between an outer surface of the tube cap and an inner surface of the wrapping layer.

[0011] In some embodiments, the wrapping layer is circumferentially provided with an air inlet hole extending through a side wall of the wrapping layer, and the air inlet hole is provided between downstream of the substrate section and upstream of the hollow tube body.

[0012] In some embodiments, a gap is formed between upstream of the airflow arrangement unit and downstream of the substrate section.

[0013] In some embodiments, a cross section of the tube cap gradually narrows from a cover bottom thereof to a cover top thereof.

[0014] In some embodiments, the tube cap is in a curved or conical shape.

[0015] In some embodiments, the aerosol generating product further includes a filtering section provided downstream of the airflow arrangement section.

[0016] The details of one or more embodiments of the present application are set forth in the accompanying drawings and the description below. Other features, objectives, and advantages of the present application will be apparent from the description and drawings, and from the claims.BRIEF DESCRIPTION OF THE DRAWINGS

[0017] To better describe and illustrate embodiments and / or examples of the present application, reference may be made to one or more of the accompanying drawings. The additional details or examples used to describe the drawings should not be construed as limiting the scope of any of the disclosed disclosures, the embodiments and / or examples presently described, and the best modes of these inventions currently understood. FIG. 1 is a schematic structural view of an aerosol generating product in one or more embodiments of the present application. FIG. 2 is a schematic structural view of one embodiment of an airflow arrangement section in one or more embodiments of the present application. FIG. 3 is a schematic structural view of one embodiment of an airflow arrangement section in one or more embodiments of the present application. FIG. 4 is a schematic structural view of a flow of an airflow of one embodiment of the aerosol generating product in one or more embodiments of the present application. FIG. 5 is a schematic structural view of one embodiment of an aerosol generating product in one or more embodiments of the present application. FIG. 6 is a schematic structural view of one embodiment of an aerosol generating product in one or more embodiments of the present application. FIG. 7 is a schematic structural view of one embodiment of an aerosol generating product in one or more embodiments of the present application.

[0018] Description of reference signs: 1. substrate section; 2. airflow arrangement section; 21. airflow arrangement unit; 211. hollow tube body; 212. tube cap; 2121. air outlet hole; 22. wrapping layer; 23. air inlet hole; 3 filtering section.DETAILED DESCRIPTION

[0019] Those skilled in the art should understand that the following embodiments are only for illustrating the present application and should not be regarded as limiting the scope of the present application. If no specific technology or conditions are specified in the embodiments, the technology or conditions described in the literature in the art or the product specification shall be followed. The materials or equipment used without indicating the manufacturer are conventional products that can be purchased.

[0020] Those skilled in the art should understand that, unless specifically specified, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the term "include" used in the specification of the present application refers to the presence of the stated features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof. It will be understood that when an element is described as being "connected" to another element, it may be directly connected or indirectly connected through an intermediate element. Furthermore, the "connected" as used herein may include wireless connection.

[0021] In the description of the present application, unless otherwise specified, "a plurality of" means two or more. The terms "inner", "upper", "lower", etc., indicating an orientation or relationship are based on the orientation or relationship shown in the drawings, which are only for convenience of description of the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so such terms cannot be understood as a limitation of the present application.

[0022] In the description of the present application, it should be noted that, unless otherwise expressly specified and limited, the terms "mounted", "connected", and "provided" should be understood in a broad sense. For example, they may be fixedly, detachably, or integrally connected. They can be mechanically or electrically connected. They can be directly connected, or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present application should be understood according to specific situations.

[0023] As used herein, the terms "upstream" and "downstream" are used to describe the relative positions of the components or parts of the components of an aerosol generating product with respect to a direction in which air is inhaled through the product during use. A mouth end of the product may also be referred to as a downstream end, and a distal end of the product may also be referred to as an upstream end. The components or parts of the components of the product can be described as upstream or downstream of each other based on the relative positions between the mouth end (or the downstream end) and the distal end (or the upstream end).

[0024] Those skilled in the art can understand that, unless otherwise defined, all terms used here, including technical and scientific terms, have the same meaning as generally understood by those skilled in the art to which this application belongs. It should also be understood that terms such as those defined in general dictionaries should be understood as having meanings consistent with those in the context of the prior art and will not be interpreted with idealized or overly formal sense unless defined as such herein.

[0025] In one embodiment, the present application provides an aerosol generating product, which includes at least one substrate section 1. The substrate section 1 is filled with an aerosol generating substrate to provide a source for generating an aerosol. An airflow arrangement section 2 is provided downstream of the substrate section 1.

[0026] The airflow arrangement section 2 includes an airflow arrangement unit 21 and a wrapping layer 22 wrapped around an outer side of the airflow arrangement unit 21.

[0027] The airflow arrangement unit 21 includes a hollow tube body 211 and a tube cap 212. Two ends of the hollow tube body 211 have tube openings. At least one end of the hollow tube body 211 is provided with the tube cap 212. The hollow tube body 211 is a hollow cylinder, with an outer diameter of 5 mm to 9 mm and a wall thickness of 0.03 mm to 2 mm. The tube cap 212 covers the tube opening of the hollow tube body 211. The tube cap 212 protrudes outward from the hollow tube body 211 or is recessed into the hollow tube body 211.

[0028] A cross section of the tube cap 212 gradually narrows from a cover bottom thereof to a cover top thereof. The tube cap 212 is of a thin walled structure with a variable diameter such as a curved or conical shape. An end of the tube cap 212 away from the tube opening of the hollow tube body 211 is defined as the cover top, and an end of the tube cap 212 connected to the tube opening of the hollow tube body 211 is defined as the cover bottom.

[0029] The tube cap 212 and the hollow tube body 211 are integrally formed or formed in sections and then bonded to form the airflow arrangement unit 21. Both the tube cap 212 and the hollow tube body 211 are made of metal or polymer materials such as PE, PLA, fiber paper, starch, etc.

[0030] The substrate section 1 and the airflow arrangement section 2 are in air flow communication with each other. An inner surface of the wrapping layer 22 is attached to an outer surface of the hollow tube body 211.

[0031] The wrapping layer 22 is made of paper, paper tube, metal foil, PE, PLA or other polymer film materials, and is configured to wrap the airflow arrangement unit 21, so that an airflow channel is formed between the two ends of the airflow arrangement unit 21 and the wrapping layer 22. The wrapping layer 22 has a diameter of 5 mm to 9.2 mm, a length of 5 mm to 40 mm, and a thickness of 0.01 mm to 1 mm.

[0032] 1 to 1000 air outlet holes 2121 with a circumference of 0.1 mm to 2 mm are evenly distributed on the tube cap 212. The air outlet holes 2121 are circular or rectangular, and may alternatively be in other regular or irregular shapes.

[0033] A gap is formed between upstream of the airflow arrangement unit 21 and downstream of the substrate section 1. A size of the gap is 1 mm to 30 mm. The aerosol generated by heating the substrate section 1 flows into the gap and is mixed in the gap, thereby improving the homogeneity of the aerosol during inhalation.

[0034] In one or more embodiments, an end of the airflow arrangement unit 21 adjacent to the substrate section 1 is provided with the tube cap 212, and the tube cap 212 protrudes outward from the hollow tube body 211. The airflow channel is formed between an outer surface of the tube cap 212 and an inner surface of the wrapping layer 22.

[0035] In one or more embodiments, the end of the airflow arrangement unit 21 adjacent to the substrate section 1 is provided with the tube cap 212, and the tube cap 212 is recessed into the hollow tube body 211.

[0036] When the end of the airflow arrangement unit 21 adjacent to the substrate section 1 is provided with the tube cap 212, the aerosol generated by the substrate section 1 is first compressed through the air outlet holes 2121 and then expanded in a sufficient space, so that the aerosol is more uniform. Compared with the case where the tube cap 212 is provided at the end of the airflow arrangement unit 21 away from the substrate section 1, when the tube cap 212 is provided at the end of the airflow arrangement unit 21 adjacent to the substrate section 1, more internal energy of the aerosol is consumed, and the cooling effect is better.

[0037] In one or more embodiments, an end of the airflow arrangement unit 21 away from the substrate section 1 is provided with the tube cap 212, and the tube cap 212 protrudes outward from the hollow tube body 211. The airflow channel is formed between the outer surface of the tube cap 212 and the inner surface of the wrapping layer 22.

[0038] In one or more embodiments, the end of the airflow arrangement unit 21 away from the substrate section 1 is provided with the tube cap 212, and the tube cap 212 is recessed into the hollow tube body 211.

[0039] When the end of the airflow arrangement unit 21 away from the substrate section 1 is provided with the tube cap 212, the aerosol generated by the substrate section 1 first passes through the hollow tube body 211, then is compressed through the air outlet holes 2121 on the tube cap 212, and quickly flows out of the airflow arrangement section 2. Compared with the case where the tube cap 212 is provided at the end of the airflow arrangement unit 21 adjacent to the substrate section 1, when the tube cap 212 is provided at the end of the airflow arrangement unit 21 away from the substrate section 1, the inhalation resistance during inhalation is smaller.

[0040] In one or more embodiments, both ends of the airflow arrangement unit 21 are provided with the tube caps 212, and the tube caps 212 at both ends of the airflow arrangement unit 21 protrude outward from the hollow tube body 211.

[0041] In one or more embodiments, both ends of the airflow arrangement unit 21 are provided with the tube caps 212, and the tube caps 212 at both ends of the airflow arrangement unit 21 are recessed into the hollow tube body 211.

[0042] In one or more embodiments, both ends of the airflow arrangement unit 21 are provided with the tube caps 212, the tube cap 212 at the end of the airflow arrangement unit 21 away from the substrate section 1 is recessed into the hollow tube body 211, and the tube cap 212 at the end of the airflow arrangement unit 21 adjacent to the substrate section 1 protrudes outward from the hollow tube body 211.

[0043] In one or more embodiments, both ends of the airflow arrangement unit 21 are provided with the tube caps 212, the tube cap 212 at the end of the airflow arrangement unit 21 away from the substrate section 1 protrudes outward from the hollow tube body 211, and the tube cap 212 at the end of the airflow arrangement unit 21 adjacent to the substrate section 1 is recessed into the hollow tube body 211.

[0044] During use, the substrate section 1 of the aerosol generating product is heated to generate an aerosol, and external air enters from an upstream end of the substrate section 1 and carries the generated aerosol to form a mixed airflow. When the mixed airflow flows through the air outlet holes 2121, the mixed air is compressed by the air outlet holes 2121 and then expands, and the expanded air flows from the inside of the airflow arrangement section 2 to the outside of the airflow arrangement section 2, and then is inhaled by a user.

[0045] In another alternative embodiment, the end of the substrate section 1 away from the airflow arrangement section 2 is sealed or sealed by a heating smoking device. A side wall of the wrapping layer 22 is provided with air inlet holes 23, the number of the air inlet holes is 1 to 100, and diameters of the air inlet holes 23 are 0.01 mm to 0.5 mm.

[0046] The air inlet hole 23 is circular, elliptical, triangular, pentagonal, rectangular, or hexagonal, but is not limited to the above shapes, and any hole type may be adopted according to actual needs.

[0047] The wrapping layer 22 is circumferentially provided with the air inlet holes 23 extending through the side wall of the wrapping layer 22, and the air inlet holes 23 are provided between a downstream end of the aerosol generating substrate section 1 and an upstream end of the hollow tube body 211. As a preferred mode, the air inlet holes 23 are arranged in one or two circles.

[0048] In one or more embodiments, the air inlet holes 23 extending through the side wall of the wrapping layer 22 are provided along a circumferential direction of the wrapping layer 22, and the air inlet holes 23 are provided between the downstream end of the aerosol generating substrate section 1 and an upstream end of the airflow arrangement unit 21. Preferably, the air inlet holes 23 are arranged in one or two circles.

[0049] During use, the substrate section 1 of the aerosol generating product is heated to generate an aerosol, and external air enters from the air inlet holes 23 on the side wall of the wrapping layer 22, is mixed with the aerosol generated by the substrate section 1 at the upstream end of the airflow arrangement section, so as to carry the aerosol generated by the substrate section 1 to form a mixed airflow. In this case, the substrate section 1 is heated in an oxygen free or oxygen deficient environment, and the generated aerosol has no impurities and is pure. When the mixed airflow flows to the airflow arrangement section 2, the mixed airflow is compressed by the air outlet holes 2121 when flowing through the air outlet holes 2121, and then expands. The expanded gas flows from the inside of the airflow arrangement section 2 to the outside of the airflow arrangement section 2, and then is inhaled by the user.

[0050] In one or more embodiments, the aerosol generating product further includes a filtering section 3 provided downstream of the airflow arrangement section 2. The filtering section 3 may be any filter rod known to those skilled in the art, for example, an acetate filter rod, a polylactic acid filter rod, a polypropylene fiber filter rod, a non-woven filter rod, etc.

[0051] During use, after the aerosol generated by heating the substrate section 1 flows through the airflow arrangement section 2, when the aerosol gas is subjected to local obstacles such as sudden expansion, contraction, turning, or the like, a vortex area is formed to cause energy loss, so that the internal energy is consumed, and the temperature of the aerosol is decreased. Moreover, after flowing through the airflow arrangement section 2, a flow rate of the aerosol is increased. After quickly flowing to the filtering section 3, the retention time of the aerosol in the filtering section 3 is shortened, so that the aerosol sedimentation phenomenon is reduced, thereby improving the utilization rate of the effective substance in a cigarette.Example 1

[0052] Referring to FIG. 1 and FIG. 2, the present example provides an aerosol generating product, which includes a substrate section 1, an airflow arrangement section 2, and a filtering section 3 that are sequentially connected.

[0053] The airflow arrangement section 2 is composed of an airflow arrangement unit 21 and a wrapping layer 22 wrapped around an outer side of the airflow arrangement unit 21. A wall thickness of the airflow arrangement unit 21 is 0.3 mm. The airflow arrangement unit 21 is made of PLA. The airflow arrangement unit 21 includes a hollow tube body 211 with an outer diameter of 7.2 mm and a tube cap 212 integrally formed with the hollow tube body 211.

[0054] Only one end of the hollow tube body 211 is provided with the tube cap 212. An end of the airflow arrangement unit 21 adjacent to the substrate section 1 is provided with the tube cap 212, and the tube cap 212 protrudes outward from the hollow tube body 211. An airflow channel is formed between an outer surface of the tube cap 212 and an inner surface of the wrapping layer 22. A gap with a size of 4 mm is formed between upstream of the airflow arrangement unit 21 and downstream of the substrate section 1. The tube cap 212 is hemispherical, and is provided with four air outlet holes 2121 each with a diameter of 0.3 mm. One of the air outlet holes 2121 is provided at the center of a cover top of the tube cap 212, and the other three air outlet holes 2121 are equidistantly distributed along an arc surface of the tube cap 212 at a distance of 1 mm from the air outlet hole 2121 at the cover top. An outer side of the airflow arrangement unit 21 is wrapped with a fiber paper layer with a thickness of 0.05 mm, so that the airflow arrangement section 2 with an outer diameter of 7.3 mm can be obtained.

[0055] The airflow arrangement section 2 with a length of 10 mm is connected to the substrate section 1 with a length of 12 mm and the filtering section 3 with a length of 7 mm along a central axis, and a low-temperature heat-not-burn cigarette can be obtained.

[0056] The low-temperature heat-not-burn cigarette is the aerosol generating product of the present application.

[0057] According to the YC / T138 1998 sensory evaluation standard for tobacco and tobacco products, a smoking evaluation team of 15 smoking evaluation experts was organized to evaluate the aerosol generating product of this example and detect the inhalation resistance index, and the inhalation evaluation and detection results are listed in table 1 below.

[0058] According to the inhalation evaluation method and detection described in Example 1, the aerosol generating product of this example was inhaled and evaluated, and the results are respectively listed in the following Table 1.Example 2

[0059] Referring to FIG. 3, this example provides an aerosol generating product, which includes a substrate section 1, an airflow arrangement section 2, and a filtering section 3 that are sequentially connected.

[0060] The airflow arrangement section 2 is composed of an airflow arrangement unit 21 and a wrapping layer 22 wrapped around an outer side of the airflow arrangement unit 21. A wall thickness of the airflow arrangement unit 21 is 0.5 mm. The airflow arrangement unit 21 is made of PLA. The airflow arrangement unit 21 includes a hollow tube body 211 with an outer diameter of 6.3 mm and a tube cap 212 integrally formed with the hollow tube body 211.

[0061] Only one end of the hollow tube body 211 is provided with the tube cap 212. An end of the airflow arrangement unit 21 away from the substrate section 1 is provided with the tube cap 212, and the tube cap 212 protrudes outward from the hollow tube body 211. An airflow channel is formed between an outer surface of the tube cap 212 and an inner surface of the wrapping layer 22. A gap with a size of 2 mm is formed between downstream of the airflow arrangement unit 21 and upstream of the filtering section 3, and an upstream end of the hollow tube body 211 abuts against a downstream end of the substrate section 1.

[0062] The tube cap 212 is hemispherical, and one air outlet hole 2121 with a diameter of 2 mm is formed in the center of the top of the tube cap 212. An outer side of the airflow arrangement unit is wrapped with a PE polymer layer with a thickness of 0.3 mm, so that the airflow arrangement section 2 with an outer diameter of 6.9 mm can be obtained.

[0063] The airflow arrangement section 2 with a length of 10 mm is connected to the substrate section 1 with a length of 12 mm along a central axis, and twenty circular air inlet holes 23 each with a diameter of 0.05 mm are equidistantly spaced in a circumferential direction of the wrapping layer 22 at positions of an end of the airflow arrangement section 2 adjacent to the substrate section 1 and 4 mm away from the substrate section 1, and a low-temperature heat-not-burn cigarette can be obtained.

[0064] The low-temperature heat-not-burn cigarette is the aerosol generating product of the present application.

[0065] According to the inhalation evaluation method and detection described in Example 1, the aerosol generating product of this example was inhaled and evaluated, and the results are respectively listed in the following Table 1.Example 3

[0066] Referring to FIG. 4, this example provides an aerosol generating product, which includes a substrate section 1, an airflow arrangement section 2, and a filtering section 3 that are sequentially connected.

[0067] The airflow arrangement section 2 is composed of an airflow arrangement unit 21 and a wrapping layer 22 wrapped around an outer side of the airflow arrangement unit 21. A wall thickness of the airflow arrangement unit 21 is 0.5 mm. The airflow arrangement unit 21 is made of fiber paper. The airflow arrangement unit 21 includes a hollow tube body 211 with an outer diameter of 8.3 mm and a tube cap 212 integrally formed with the hollow tube body 211.

[0068] Only one end of the hollow tube body 211 is provided with the tube cap 212. An end of the airflow arrangement unit 21 adjacent to the substrate section 1 is provided with the tube cap 212, and the tube cap 212 protrudes outward from the hollow tube body 211. An airflow channel is formed between an outer surface of the tube cap 212 and an inner surface of the wrapping layer 22. A gap with a size of 2 mm is formed between upstream of the airflow arrangement unit 21 and downstream of the substrate section 1. A gap of 3 mm is formed between a downstream end of the hollow tube 211 and a downstream end of the wrapping layer 22.

[0069] The tube cap 212 is hemispherical, and one air outlet hole 2121 with a diameter of 2 mm is formed in the center of the top of the tube cap 212. An outer side of the airflow arrangement unit 21 is wrapped with a PE polymer layer with a thickness of 0.05 mm, so that the airflow arrangement section 2 with an outer diameter of 8.4 mm can be obtained.

[0070] Two airflow arrangement sections 2 each with a length of 8 mm are connected to the substrate section 1 with a length of 15 mm along a central axis, and ten circular air inlet holes 23 each with a diameter of 0.05 mm are equidistantly spaced in a circumferential direction of the wrapping layer 22 at positions of an end of the airflow arrangement section 2 adjacent to the substrate section 1 and 2 mm away from the substrate section 1, and a low-temperature heat-not-burn cigarette can be obtained.

[0071] The low-temperature heat-not-burn cigarette is the aerosol generating product of the present application.

[0072] According to the inhalation evaluation method and detection described in Example 1, the aerosol generating product of this example was inhaled and evaluated, and the results are respectively listed in the following Table 1.

[0073] A control sample K is an existing HEETS cigarette on the market, which includes a 12 mm substrate section, an 8 mm support section, an 18 mm cooling section, and a 7 mm filtering section.

[0074] The substrate sections of the aerosol generating products in Examples 1 to 3 of the present application are each filled with the same aerosol generating substrate as that in the substrate section of the control sample K. Table 1: Inhalation evaluation results of aerosol generating productsSampleAmount of smoke Full score: 10Fluidity of smoke Full score: 10Uniformity Full score: 10Temperatur e of smoke (°C)Inhalatio n resistanc e (Pa)Total score of evaluatio n itemsControl Sample K7876583022Example 1898.55577325.5Example 29994663227Example 38.59.594379927

[0075] From the results listed in Table 1, it is clear that, compared with the existing aerosol generating product (i.e., the control sample K), the aerosol generating products of Example 1, Example 2, Example 3 of the present application have significant improvement in terms of the amount of smoke, the fluidity of smoke, uniformity, the temperature of smoke, and the inhalation resistance, and the overall sensory quality is also significantly improved.

[0076] The present application has the following beneficial effects. 1. According to the aerosol generating product of the present application, during the aerosol generated by heating the substrate section flowing through the airflow arrangement section, when the generated aerosol gas is subjected to local obstacles such as sudden expansion, contraction, turning, or the like, a vortex area is formed to cause energy loss, so that the internal energy is consumed, and the temperature of the aerosol is decreased. In addition, under the condition of the same flow rate, a cross section of the airflow channel through which fluid flows narrows, the flow speed of the fluid is increased. As such, when the aerosol generated by the substrate section flows through the airflow arrangement unit, the flow speed in the airflow arrangement section is increased, the retention time of the aerosol in the filtering section is reduced to reduce the aerosol sedimentation phenomenon, thereby improving the utilization rate of the effective substance in a cigarette. 2. The aerosol generating product of the present application may be in a form of NSC, that is, no air enters from a bottom portion of the substrate section. The wrapping layer of the airflow arrangement section is provided with the air inlet holes. After entering the airflow arrangement section from the air inlet holes, the external air is mixed with the aerosol generated by the substrate section along the upstream of the airflow arrangement section, so as to carry the aerosol generated by the substrate section. In this way, the substrate section can be heated in an oxygen free or anoxic environment, and the generated aerosol has no impurities and is pure. 3. By providing the airflow arrangement unit, the aerosol generating product of the present application can effectively reduce the temperature of the aerosol and improve the inhalation comfort.

[0077] The foregoing are only some embodiments of the present application, and the protection scope of the present application is not limited thereto. Any equivalent device or equivalent process transformation made by using the contents of the description and drawings of the present application, or directly or indirectly applied to other related technical fields, are also included in the protection scope of the present application.

[0078] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features are described in the embodiments. However, as long as there is no contradiction in the combination of these technical features, the combinations should be considered as in the scope of the present disclosure.

[0079] The above-described embodiments are only several implementations of the present disclosure, and the descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present disclosure. It should be understood by those of ordinary skill in the art that various modifications and improvements can be made without departing from the concept of the present disclosure, and all fall within the protection scope of the present disclosure. Therefore, the patent protection of the present disclosure shall be defined by the appended claims.

Claims

1. An aerosol generating product comprising a substrate section (1) and an airflow arrangement section (2) arranged downstream of the substrate section (1); wherein the airflow arrangement section (2) comprises an airflow arrangement unit (21), the airflow arrangement unit (21) comprises a hollow tube body (211) and a tube cap (212), at least one end of the hollow tube body (211) is provided with the tube cap (212), the tube cap (212) covers a tube opening of the hollow tube body (211), the tube cap (212) protrudes outward from the hollow tube body (211) or is recessed into the hollow tube body (211), and the tube cap (212) is provided with at least one air outlet hole (2121).

2. The aerosol generating product according to claim 1, wherein the tube cap (212) is integrally formed with the hollow tube body (211).

3. The aerosol generating product according to claim 1 or 2, wherein the tube cap (212) and the hollow tube body (211) are formed in sections and connected to form the airflow arrangement unit (21).

4. The aerosol generating product according to any one of claims 1 to 3, wherein the airflow arrangement section (2) further comprises a wrapping layer (22) wrapped around an outer side of the airflow arrangement unit (21).

5. The aerosol generating product according to claim 4, wherein an airflow channel is formed between an outer surface of the tube cap (212) and an inner surface of the wrapping layer (22).

6. The aerosol generating product according to claim 4 or 5, wherein the wrapping layer (22) is circumferentially provided with an air inlet hole (23) extending through a side wall of the wrapping layer (22), and the air inlet hole (23) is provided between downstream of the substrate section (1) and upstream of the hollow tube body (211).

7. The aerosol generating product according to any one of claims 1 to 6, wherein a gap is formed between upstream of the airflow arrangement unit (21) and downstream of the substrate section (1).

8. The aerosol generating product according to any one of claims 1 to 7, wherein a cross section of the tube cap (212) gradually narrows from a cover bottom thereof to a cover top thereof.

9. The aerosol generating product according to claim 8, wherein the tube cap (212) is in a curved or conical shape.

10. The aerosol generating product according to any one of claims 1 to 9, wherein the aerosol generating product further comprises a filtering section (3) provided downstream of the airflow arrangement section (2).

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