Aerosol generating device and aerosol generating system

Abstract

The utility model provides an aerosol generating device and an aerosol generating system, the device comprises a filtering section, a hollow section and an aerosol matrix section which are connected in sequence, the hollow section comprises a hollow device, the hollow device is provided with a flow guide layer, and the flow guide layer is provided with a flow guide channel. According to the aerosol generating device, the hollow device is additionally arranged in the hollow section, so that the effect of preventing the aerosol matrix from displacing can be achieved, and the heating efficiency and the sensory quality of the aerosol generating device are improved. The flow guide layer is arranged on the hollow device, and the flow guide layer is provided with the flow guide channels, so that more gas paths are formed, the aerosol release efficiency is improved, and the sensory quality of the aerosol generating device is further improved. The flow guide layer of the hollow device reduces the suction resistance, so that the aerosol generating device is low in suction resistance, good in suction easiness and less in adsorption and interception of fragrant substances generated by the aerosol matrix section, and finally an unexpected effect is achieved on the aspect of improving the sensory quality of the aerosol generating device.

Description

Technical Field

[0001] The present application relates to the technical field of aerosol generation, and in particular to an aerosol generating device and an aerosol generating system. Background Art

[0002] With the improvement of health awareness, people have realized that traditional cigarettes are harmful to health. Therefore, aerosol generating devices came into being.

[0003] The aerosol generating device heats the aerosol matrix through a heating device to release the aerosol. Because the heating temperature is usually between 200℃ and 400℃, no complex chemical reaction occurs, and the harmful components produced are greatly reduced compared to the high-temperature combustion of the aerosol matrix at 600~900℃.

[0004] Aerosol generating devices are used in conjunction with heating devices. Heating with heating devices typically involves peripheral heating and central heating. Centrally heated cigarettes typically incorporate a needle- or blade-type central heating element within the heating device. During use, the heating element is inserted into the aerosol matrix of the aerosol generating device. Power is applied to generate a high temperature, which heats the aerosol matrix and releases the aerosol.

[0005] The aerosol matrix of an aerosol generating device is generally made of reconstituted tobacco leaves, shredded tobacco, shredded tobacco stems, etc. When the aerosol matrix is ​​heated by a heating device, the heating device of the heating device interacts with the aerosol matrix. For example, the central heating device pushes on the aerosol matrix when it is inserted into the aerosol matrix, and the surrounding heating devices squeeze the aerosol matrix, which often causes the aerosol matrix to deform or displace, reducing the heating efficiency, low efficiency of flavor substance release, and affecting the sensory quality. Utility Model Content

[0006] Based on this, it is necessary to provide an aerosol generating device and an aerosol generating system, aiming to avoid displacement of the aerosol matrix and improve the sensory quality of the aerosol generating device.

[0007] In a first aspect of the present application, an aerosol generating device is provided, comprising a filter section, a hollow section and an aerosol matrix section connected in sequence, wherein the hollow section comprises a hollow device, the hollow device has a guide layer, and the guide layer has a guide channel.

[0008] The aerosol generating device of the present application adds a hollow device in the hollow section. Adding a hollow device in the hollow section can play a role in preventing the displacement of the aerosol matrix. When the heating device heats the aerosol matrix and the heating device interacts with the aerosol matrix, the aerosol matrix can be prevented from being displaced, thereby improving the heating efficiency, reducing the difficulty and cost of the processing technology, and improving the sensory quality of the aerosol generating device. The hollow channel of the hollow device forms a first air path. At the same time, a guide layer is provided on the hollow device. The guide layer has a guide channel, thereby increasing the air passage and forming more air paths, thereby improving the release efficiency of the aerosol in the aerosol matrix section, and further improving the sensory quality of the aerosol generating device. The guide layer of the hollow device reduces the suction resistance, so that the aerosol generating device has a low suction resistance, a good sense of ease of suction, and less adsorption and retention of the fragrance substances produced by the aerosol matrix section, ultimately achieving unexpected results in improving the sensory quality and consumer satisfaction of the aerosol generating device.

[0009] In some embodiments, the wall thickness of the hollow device is 0.6-2.7 mm.

[0010] In some embodiments, the guide layer is a hollow guide layer provided with the guide channel.

[0011] In some embodiments, the guide layer is rolled to form a hollow tubular structure.

[0012] In some embodiments, the hollow device further includes wrapping paper, and the wrapping paper is provided on at least one of the inner wall and the outer wall of the hollow tubular structure formed by rolling the guide layer.

[0013] In some embodiments, at least one surface of the guide layer has a concave-convex structure.

[0014] In some embodiments, the concave-convex structure includes at least one of a corrugated structure or a matrix concave-convex structure.

[0015] In some embodiments, the guide layer is corrugated paper, the corrugation height of the corrugated paper is 0.5 mm to 2.5 mm, and the number of corrugations in the corrugated paper is 100 to 200 per 300 mm length in the extension direction of the corrugations.

[0016] In some embodiments, the guide layer is a convex paper, and the convex paper is provided with a plurality of protrusions, the average height of the protrusions is 0.5mm~2.5mm, and the area occupied by a single protrusion is 1mm 2 ~4mm 2 , all of the protrusions account for 5% to 60% of the area of ​​the convex paper.

[0017] In some embodiments, the guide layer is a convex-concave paper, which is provided with a plurality of protrusions and pits, the average height of the protrusions is 0.5mm~2.5mm, the average depth of the pits is 0.5mm~2.5mm, and the area occupied by a single protrusion or pit is 1mm 2 ~4mm 2 , all the protrusions and the pits account for 5% to 60% of the area of ​​the convex-concave paper.

[0018] In some embodiments, the hollow device includes a fragrance segment and a fragrance-free segment connected to each other, and the fragrance segment is located between the aerosol matrix and the fragrance-free segment.

[0019] In some embodiments, the axial length ratio of the fragrance segment to the fragrance-free segment is 1:5 to 5:1.

[0020] In some embodiments, the ratio of the wall thickness of the fragrance segment to the wall thickness of the non-fragrance segment is 1:0.5~1.

[0021] In some embodiments, the total length of the hollow device is 5-50 mm.

[0022] In some embodiments, the hollow device is cylindrical and coaxially attached to the inner wall of the hollow section.

[0023] In a second aspect of the present application, an aerosol generating system is provided, comprising the aerosol generating device and a heating device as described in the first aspect.

[0024] In some embodiments, the heating device includes a heating component, a battery component for powering the heating device, a control component for controlling the battery component, and a housing for accommodating the heating component, the battery component, and the control component.

[0025] In some embodiments, the heating length of the heating component in the hollow segment is 0-100% of the length of the hollow segment, and the heating position extends from the adjacent portion of the hollow segment and the aerosol matrix to the adjacent portion of the hollow segment and the filter segment. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the axial cross-sectional structure of an aerosol generating device according to one embodiment of the present application.

[0027] Figure 2 Schematic diagram of corrugated paper structure.

[0028] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure of medium corrugated paper.

[0029] Figure 4 for Figure 2 Schematic diagram of the structure of the medium corrugated paper roll when it is made into a diversion layer.

[0030] Figure 5 Schematic diagram of the convex paper structure.

[0031] Figure 6 for Figure 5 Schematic diagram of the cross-sectional structure of the convex dot paper.

[0032] Figure 7 Schematic diagram of the cross-sectional structure of embossed paper.

[0033] Figure 8 Schematic diagram of the position relationship between the outer wrapping paper and the corrugated paper during rolling.

[0034] Figure 9 For press Figure 8 Schematic diagram of the cross-sectional structure of the hollow device obtained by rolling.

[0035] Figure 10 Schematic diagram of the position relationship between the outer wrapping paper and the corrugated paper during rolling.

[0036] Figure 11 For press Figure 10 Schematic diagram of the cross-sectional structure of the hollow device obtained by rolling.

[0037] Figure 12 This is a schematic diagram of the positional relationship between the outer wrapping paper, corrugated paper and inner wrapping paper during rolling.

[0038] Figure 13 For press Figure 12 Schematic diagram of the cross-sectional structure of the hollow device obtained by rolling.

[0039] Figure 14 This is a schematic diagram of the positional relationship between the outer wrapping paper, corrugated paper and inner wrapping paper during rolling.

[0040] Figure 15 For press Figure 14 Schematic diagram of the cross-sectional structure of the hollow device obtained by rolling.

[0041] Figure 16 This is a schematic diagram of the cross-sectional structure of the first hollow device made of convex paper as the guide layer.

[0042] Figure 17 This is a schematic diagram of the cross-sectional structure of the second hollow device made of convex paper as the guide layer.

[0043] Figure 18 This is a schematic diagram of the cross-sectional structure of the third hollow device made of convex paper as the guide layer.

[0044] Figure 19Schematic diagram of the loading state of particles on corrugated paper.

[0045] Figure 20 Schematic diagram of the loading state of particles on corrugated paper after being rolled into a hollow device.

[0046] Description of reference numerals:

[0047] 1. Wrapping material; 11. Filter section; 12. Hollow section; 13. Aerosol matrix section; 2. Filter body; 3. Aerosol matrix; 4. Hollow device; 41. Guide layer; 411. Guide channel; 5. Hollow gap; 6. Particulate matter; 7. Outer paper; 8. Inner paper. DETAILED DESCRIPTION

[0048] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0049] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0050] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application pertains. The terms used herein in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0051] In a first aspect of the present application, an aerosol generating device is provided, which will be described in detail below with reference to the accompanying drawings.

[0052] An aerosol generating device according to one embodiment of the present application includes a filter section, a hollow section, and an aerosol matrix section connected in sequence, wherein the hollow section includes a hollow device having a guide layer, and the guide layer has a guide channel.

[0053] It is understood that the filter section herein includes wrapping material and filter body, the hollow section includes wrapping material and hollow device, and the aerosol matrix section includes wrapping material and aerosol matrix. The wrapping material includes but is not limited to wrapping paper and tipping paper.

[0054] The aerosol generating device of the present application adds a hollow device in the hollow section. Adding a hollow device in the hollow section can play a role in preventing the displacement of the aerosol matrix. When the heating device heats the aerosol matrix and the heating device interacts with the aerosol matrix, the aerosol matrix can be prevented from being displaced, thereby improving the heating efficiency, reducing the difficulty and cost of the processing technology, and improving the sensory quality of the aerosol generating device. The hollow channel of the hollow device forms a first air path. At the same time, a guide layer is provided on the hollow device. The guide layer has a guide channel, thereby increasing the air passage and forming more air paths, thereby improving the release efficiency of the aerosol in the aerosol matrix section, and further improving the sensory quality of the aerosol generating device. The guide layer of the hollow device reduces the suction resistance, so that the aerosol generating device has a low suction resistance, a good sense of ease of suction, and less adsorption and retention of the fragrance substances produced by the aerosol matrix section, ultimately achieving unexpected results in improving the sensory quality and consumer satisfaction of the aerosol generating device.

[0055] As an example, the aerosol generating device may be a heat-not-burn cigarette, but is not limited thereto.

[0056] In some implementations, see Figure 1 An aerosol generating device according to one embodiment of the present application includes a wrapping material 1, a filter body 2, a hollow device 4 and an aerosol matrix 3, wherein the filter body 2 is arranged in the filter section 11, the hollow device 4 is arranged on the inner side wall of the hollow section 12 and fills part of the hollow section 12, the aerosol matrix 3 is arranged in the aerosol matrix section 13, one end of the hollow device 4 abuts the filter body 2, and the other end abuts the aerosol matrix 3; a guide layer 41 is provided on the hollow device 4, and the guide layer 41 carries a fragrance substance.

[0057] In some implementations, see Figure 1 The hollow device 4 is cylindrical and coaxially fits on the inner wall of the hollow section 12.

[0058] It can be understood that the cylindrical hollow device has a hollow portion, which serves as an aerosol gas passage and cooling channel.

[0059] It can be understood that the aerosol generating device includes a cylindrical structure formed by a wrapping material, one end of the cylindrical structure is a filter section, a filter body is arranged inside the filter section, the other end of the cylindrical structure is an aerosol matrix section, an aerosol matrix is ​​arranged inside, and there is a hollow section between the filter section and the aerosol matrix section. The hollow section is not filled with a filter body and an aerosol matrix material, forming a channel, and the hollow device is arranged on the inner side wall of the hollow section and fills part of the channel.

[0060] In some embodiments, the wall thickness of the hollow device is 0.6-2.7 mm, preferably 1.0-2.7 mm, more preferably 1.2-2.7 mm, and most preferably 1.5-2.5 mm.

[0061] As an example, the wall thickness of the hollow device can be 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1.0mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, 2.0mm, 2.1mm, 2.2mm, 2.3mm, 2.4mm, 2.5mm, 2.6mm, 2.7mm, 2.8mm, 2.9mm, 3.0mm, 3.1mm, 3.2mm, or within the range formed by any two of the foregoing values ​​as end values.

[0062] In some embodiments, the guide layer is a hollow guide layer provided with the guide channel. The guide channel not only facilitates the aerosol to pass through and reduces the inhalation resistance, but also improves the release efficiency of the flavor substance.

[0063] In some embodiments, the guide layer is rolled to form a hollow tubular structure.

[0064] In some embodiments, the hollow device further includes wrapping paper, and the wrapping paper is provided on at least one of the inner wall and the outer wall of the hollow tubular structure formed by rolling the guide layer.

[0065] Understandably, see Figure 13 The outer paper 7 is arranged on the outer wall of the hollow tubular structure formed by rolling the guide layer, and the inner paper 8 is arranged on the inner wall of the hollow tubular structure formed by rolling the guide layer.

[0066] In some embodiments, at least one surface of the guide layer has a concave-convex structure. The purpose of the concave-convex structure is to create gaps between the concave and convex surfaces of the guide layer and the wrapping paper, thereby forming a guide channel, thereby reducing draw resistance and improving the release efficiency of the flavor substance.

[0067] In some embodiments, the guide layer is made of paper, rubber or plastic.

[0068] In some embodiments, the concave-convex structure includes at least one of a corrugated structure or a matrix concave-convex structure.

[0069] In some implementations, see Figure 2 and Figure 3 , the guide layer is corrugated paper, the corrugation height of the corrugated paper is 0.5mm~2.5mm, and in the extension direction of the corrugations in the corrugated paper, the number of corrugations per 300mm length is 100~200. The corrugation height of the corrugated paper is preferably 1.0mm~2.0mm, more preferably 1.2mm~1.8mm. The number of corrugations of the corrugated paper is preferably 140~160 / 300mm. Corrugated paper is used as the guide layer on the hollow device, the hollow channel of the hollow device forms the first air path, the internal gap of the corrugated paper constitutes the second air path, and the corrugated surface of the corrugated paper constitutes the third air path, thereby improving the release efficiency of the flavor substance, reducing the inhalation resistance, and ultimately improving the sensory quality of the aerosol generating device.

[0070] Corrugated paper is also known as corrugated paper, which is a single-layer corrugated paper, that is, one side of the corrugated paper is bonded to the flat paper. Figure 4 After being wound into a hollow device, the corrugated paper forms a guide layer, and the corrugations of the corrugated paper form a spiral guide channel 411.

[0071] In some implementations, see Figure 5 and Figure 6 The guide layer is a convex paper with a plurality of protrusions on it. The average height of the protrusions is 0.5mm~2.5mm, and the area occupied by a single protrusion is 1mm. 2 ~4mm 2 The total area of ​​the convex paper is 5% to 60%. The convex paper not only plays a supporting role, but also the gaps between the convex paper form a flow channel, which is conducive to gas circulation.

[0072] Furthermore, the average height of the protrusions is preferably 1.0 mm to 2.0 mm, more preferably 1.2 mm to 1.8 mm. The total protrusions preferably account for 10% to 40% of the area of ​​the convex paper, more preferably 15% to 20%.

[0073] Further, the protrusions on the convex point paper are evenly distributed, but are not limited to horizontal and vertical distribution. The cross-sectional shape of the protrusions can be any shape, can be a triangle, square, circle, polygon, etc., or can be a combination of multiple shapes.

[0074] In some embodiments, the guide layer is a concave dot paper, and the concave dot paper is provided with a plurality of pits, the average depth of the pits is 0.5mm~2.5mm, and the area occupied by a single pit is 1mm2 ~4mm 2 , all of the pits account for 5% to 60% of the area of ​​the pit paper.

[0075] In some implementations, see Figure 7 The guide layer is a convexo-concave paper with a plurality of protrusions and concave pits. The average height of the protrusions is 0.5mm-2.5mm, the average depth of the concave pits is 0.5mm-2.5mm, and the area occupied by a single protrusion or concave pit is 1mm. 2 ~4mm 2 , all the protrusions and the pits account for 5% to 60% of the area of ​​the convex-concave paper.

[0076] In some embodiments, the guide layer is a rubber sheet with a plurality of protrusions on the surface, the average height of the protrusions is 0.5mm~2.5mm, and the area occupied by a single protrusion is 1~5mm. 2 The number of protrusions is 1 to 20 per cm 2 The guide layer is made of rubber, which has good flexibility, high strength and is easy to process; the protrusions not only play a supporting role but also facilitate gas circulation.

[0077] Furthermore, the average height of the protrusions is preferably 1.2 mm to 1.8 mm.

[0078] Furthermore, the total area of ​​all the protrusions accounts for 5% to 60% of the total area of ​​the rubber sheet, preferably 10% to 20%.

[0079] Furthermore, the protrusions on the surface of the undulating rubber sheet are solid.

[0080] Furthermore, the material of the rubber sheet with a undulating surface is not limited to silicone, latex and natural rubber.

[0081] In some embodiments, the guide layer is a rubber sheet with a plurality of pits on the surface, the average depth of the pits is 0.5mm~2.5mm, and the area occupied by a single pit is 1~4mm. 2 , all of the pits account for 5 to 60% of the area of ​​the pit paper.

[0082] In some embodiments, the guide layer is a plastic sheet or a rubber sheet having the same structure as the aforementioned corrugated paper.

[0083] In some embodiments, the guide layer is a plastic sheet or a rubber sheet having the same structure as the aforementioned convex dot paper.

[0084] In some embodiments, the guide layer is a plastic sheet or a rubber sheet having the same structure as the aforementioned concave dot paper.

[0085] In some embodiments, the guide layer is a plastic sheet or a rubber sheet having the same structure as the aforementioned embossed paper.

[0086] Furthermore, when the guide layer is made of plastic, it is formed by plastic molding without winding, and can be directly formed into a hollow device with a guide layer. A number of circular holes can be provided on the side walls of the hollow device. The wall thickness of the hollow device is 1.3 mm to 3 mm, preferably 1.5 mm to 2.5 mm, and more preferably 1.5 to 2.0 mm. The diameter of the hollow cavity of the hollow device is 1.0 mm to 2.0 mm.

[0087] In some embodiments, the guide layer carries a fragrance. The hollow channel of the hollow device forms a first air path, and the guide layer of the hollow device has a guide channel, which increases the air passage and forms more air paths. The fragrance carried in the guide layer improves the release efficiency of the fragrance. The addition of the fragrance to the guide layer results in a rich, natural, harmonious, and long-lasting aroma, with consistent and uniform puffing from front to back, and a large aerosol release volume, thereby achieving unexpected results in improving the sensory quality of the aerosol generating device.

[0088] In some embodiments, the guide layer further includes particulate matter, the aroma substance is loaded on the particulate matter to form a complex, and the complex is disposed on the guide layer.

[0089] In some embodiments, the composite is bonded to the surface of the guide layer.

[0090] For understanding, please refer to Figure 19 and Figure 20 The particles 6 can be loaded on the surface of the guide layer 41 by bonding. After being rolled into a hollow device, the particles 6 are filled in the gaps of the guide layer structure.

[0091] In some embodiments, the average particle size of the particles is 60-120 mesh (average particle diameter is 0.125-0.250 mm), preferably 80-100 mesh (average particle diameter is 0.150-0.180 mm).

[0092] As an example, the average particle size of the particulate matter can be 60 mesh, 65 mesh, 70 mesh, 75 mesh, 80 mesh, 85 mesh, 90 mesh, 95 mesh, 100 mesh, 105 mesh, 110 mesh, 115 mesh, 120 mesh, or within the range formed by any two of the aforementioned values ​​as end values.

[0093] In some embodiments, the amount of particles added is 10 g / m 2 ~300g / m 2 .

[0094] As an example, the amount of particles added may be 10 g / m 2 , 20 g / m 2 , 30 g / m 2 , 40g / m 2 , 50 g / m 2 , 80g / m 2 , 100g / m 2 , 120 g / m 2 , 150g / m 2 , 180 g / m 2 , 200g / m 2 , 220 g / m 2 , 250g / m 2 , 280 g / m 2 and 300g / m 2 , or within the range of any two of the above values ​​as end values. Preferably 40~300g / m 2 , more preferably 80~300g / m 2 , the most preferred range is 100~300g / m 2 .

[0095] In some embodiments, the particulate matter is one or more of diatomaceous earth, montmorillonite, sepiolite, kaolin, calcium oxide, calcium carbonate, calcium hydroxide, calcium sulfate, activated carbon, molecular sieve, tea stem particles, tangerine peel particles, orange peel particles, grapefruit peel particles, peanut shell particles and tangerine peel particles.

[0096] In some embodiments, the load mass of the aroma substance in the guide layer is 1% to 50%.

[0097] For example, the aroma material loading rate in the induction layer can be 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, 50%, or a range between any two of the aforementioned values. Preferably, it is 2-40%, more preferably 3-30%, and most preferably 5-10%.

[0098] In some embodiments, the flavoring substances are one or more of cocoa aroma, coffee aroma, nut aroma, milk aroma, tea aroma, cantaloupe aroma, cucumber aroma, orange aroma, grapefruit aroma, watermelon aroma, date aroma, clove, mint aroma and hay aroma.

[0099] In some embodiments, the hollow device includes a connected flavoring section and a non-flavoring section, and the flavoring section is located between the aerosol matrix and the non-flavoring section. The flavoring section is loaded with flavoring substances. According to actual needs, during the preparation of the flavoring section, the flavoring substances can be directly added to the guide layer material by methods such as spraying, coating or soaking. Alternatively, the flavoring substances can be loaded on the particulate matter first, and then these flavoring particulate matter can be filled or stuck to the guide layer. Adding the flavored particulate matter to the flavoring section not only enhances the supporting effect of the hollow device, but also is more conducive to the release of the flavoring substances because the heating temperature of the hollow section is higher than that of the filter section. In addition, compared with adding the flavoring substances to the aerosol matrix section, the release of the flavoring substances is difficult to coordinate due to the influence of various factors during heating. However, when the flavoring substances are added to the hollow section, the process of heat release is relatively simple, the release is easy to control, and the aroma and taste of the cigarette are better.

[0100] In some embodiments, the axial length ratio of the fragrance segment to the fragrance-free segment is 1:5 to 5:1, preferably 2:3 to 3:2.

[0101] In some embodiments, the ratio of the wall thickness of the fragrance segment to the wall thickness of the non-fragrance segment is 1:0.5~1.

[0102] In some embodiments, the total length of the hollow device is 5-50 mm.

[0103] As an example, the total length of the hollow device can be 5 mm, 10 mm, 15 mm, 20 mm, 25 mm, 30 mm, 35 mm, 40 mm, 45 mm, 50 mm, or a range between any two of the foregoing values, preferably 5.0 to 40.0 mm, more preferably 10.0 to 30.0 mm.

[0104] In some embodiments, the hollow device is cylindrical and coaxially attached to the inner wall of the hollow section.

[0105] A second aspect of the present application provides a method for preparing the aerosol generating device according to the first aspect, the method comprising the following steps:

[0106] 1) Wrapping the filter body and the hollow device connected in sequence with a wrapping material to form a whole, and wrapping the aerosol matrix with the wrapping material;

[0107] 2) Wrapping the filter body and the hollow device as a whole and the wrapped aerosol matrix portion with a wrapping material to produce the aerosol generating device. After wrapping to form a whole, the filter body constitutes the filter segment of the aerosol generating device, the hollow device constitutes the hollow segment, and the aerosol matrix constitutes the aerosol matrix segment.

[0108] A second aspect of the present application provides a method for preparing the aerosol generating device according to the first aspect, the method comprising the steps of preparing the hollow device:

[0109] 1) Wrapping the guide layer with wrapping paper on the outside or both sides of the guide layer to form a hollow tubular device;

[0110] 2) Cutting the hollow tubular device into pieces to obtain the hollow device.

[0111] In some implementations, see Figure 8 The guide layer is made of corrugated paper with the corrugations facing outward (the side away from the center axis of the hollow section is the outer side, and the side close to the center axis of the hollow section is the inner side). Then a piece of wrapping paper is used on the outside of the corrugated paper, that is, the outer paper 7. The corrugated paper is wound and rolled into a hollow device. Please refer to Figure 4 After the hollow device is wound, the corrugated paper corrugations form a spiral flow channel 411. After winding, the cross-sectional structure of the hollow device formed can be seen in FIG. Figure 9 That is, the hollow device is formed by compounding thicker ordinary paper and corrugated paper.

[0112] In some implementations, see Figure 10 The guide layer is made of corrugated paper with the corrugations facing inwards. Then a piece of wrapping paper is used to wrap the corrugated paper around the outside of the corrugated paper to form a hollow device. After wrapping, the cross-sectional structure of the hollow device is formed. Figure 11 .

[0113] In some implementations, see Figure 12 The guide layer is made of corrugated paper with the corrugations facing outwards. Then, a piece of wrapping paper is used on each side of the corrugated paper to wrap the corrugated paper to form a hollow device. After wrapping, the cross-sectional structure of the hollow device is formed. Figure 13 , the outer side is outer paper 7, and the inner side is inner paper 8.

[0114] In some implementations, see Figure 14 The guide layer is made of corrugated paper with the corrugations facing inwards. Then, a piece of wrapping paper is used on each side of the corrugated paper to wrap the corrugated paper to form a hollow device. After wrapping, the cross-sectional structure of the hollow device is formed. Figure 15 .

[0115] In some embodiments, the guide layer is made of concave dot paper, convex dot paper, or concave-convex paper, and then a piece of wrapping paper is used to wrap the guide layer around the guide layer to form a hollow device. After the outer paper and the convex dot paper are wrapped, the cross-sectional structure of the hollow device formed can be seen in FIG. Figure 16 When the guide layer is made of rubber, the preparation method of the hollow device is the same.

[0116] In some embodiments, the guide layer is made of concave-dot paper, convex-dot paper, or concave-convex paper. The guide layer is then wrapped with a sheet of wrapping paper on either side of the guide layer to form a hollow device. The cross-sectional structure of the hollow device formed by wrapping the outer paper, convex-dot paper, and inner paper is shown in Figure 17 . This means that the hollow device is a composite of thicker ordinary paper and convex-dot paper. When the guide layer is made of rubber, the preparation method for the hollow device is similar.

[0117] Further, see Figure 18 The inner paper can be a hollow wrapping paper with several hollow notches 5 evenly distributed. These hollow notches 5 can be of any shape, such as triangle, square, circle, polygon, etc., or a combination of multiple shapes. The area of ​​a single hollow notch is 1~3mm 2 , the total area of ​​the hollow gap is 1~3 mm 2 .

[0118] In some embodiments, when the guide layer is made of plastic material, the guide layer is formed by plastic molding. The guide layer can be directly molded into a hollow device with the guide layer without the need for winding molding.

[0119] In some embodiments, the preparation of the hollow device further comprises at least one of the following preparation steps:

[0120] 1) loading the aroma substance on the guide layer;

[0121] 2) The aroma substance is loaded onto the particles, and then the particles are loaded onto the guide layer.

[0122] In some embodiments, the aroma substance is loaded onto the guide layer and / or the particulate matter by spraying, coating or soaking.

[0123] In some embodiments, the particles are loaded on the surface of the guide layer having the concavo-convex structure by bonding.

[0124] In some embodiments, the hollow device adopts an integral breathable paper tube, the wall thickness of the hollow device is greater than the side wall thickness of the hollow section, the hollow device has good supporting strength, and is not easily squeezed by the heating device and significantly thinned.

[0125] In some embodiments, the hollow device is disposed in the hollow section by bonding.

[0126] In some embodiments, while satisfying the support strength, the hollow device can be based on a cylindrical shape with some hollowing out designs on the cylindrical surface; or holes can be opened inside the hollow device to form an air flow channel.

[0127] A third aspect of the present application provides an aerosol generating system, comprising the aerosol generating device and a heating device as described in the first aspect.

[0128] In some embodiments, the heating device includes a heating component, a battery component for powering the heating device, a control component for controlling the battery component, and a housing for accommodating the heating component, the battery component, and the control component.

[0129] In some embodiments, the heating length of the heating assembly in the hollow segment is 0-100% of the length of the hollow segment, extending from the junction of the hollow segment and the aerosol matrix to the junction of the hollow segment and the filter segment. Preferably, the heating length is 10-90%, more preferably 20-80%, and most preferably 30-70%.

[0130] It can be understood that the aerosol generating device cooperates with the heated smoking device for heating, and the length of the hollow device and the heated smoking device cooperates with each other for heating is 0-100% of the length of the hollow section.

[0131] Specifically, when the central heating method is adopted, the heating section of the heating device only heats the aerosol matrix of the aerosol generating device, so the length of the hollow section that cooperates with the heating device for heating is 0; when the peripheral heating method is adopted, the smoking device can be designed to heat the hollow section or not, so the length of the hollow section that cooperates with the heating device for heating is 0%~100% of the length of the hollow section.

[0132] In some embodiments, the aerosol generating device includes a guide layer, and the guide layer further includes wrapping paper.

[0133] The present application adds a hollow device to the hollow part of the hollow section of the aerosol generating device and adds fragrance to the hollow device, which greatly improves the sensory quality of the aerosol generating device. The following is an explanation with reference to specific embodiments and comparative examples.

[0134] Example 1

[0135] A mint flavoring substance was sprayed onto corrugated paper at a rate of 0.03 mg / aerosol generator. The corrugated paper was then laminated with plain paper as a guide layer to create a composite guide layer with one side of the corrugated paper laminated with the plain paper. The composite guide layer was then cut into appropriate widths and wrapped and bonded with plain paper to form a hollow tubular device, with the composite guide layer positioned on the inside of the hollow tubular device. The hollow tubular device containing the composite guide layer was then cut into appropriate lengths to form a hollow device. The corrugated paper layer formed the guide layer of the hollow device, and the depressions in the corrugated paper formed the aerosol diversion channel. The corrugation height of the corrugated paper was 2.0 mm, and the number of corrugations was 100 per 300 mm. The resulting hollow device was 30 mm long, with a wall thickness of 2.1 mm and a tube diameter of 6.7 mm.

[0136] The filter body and the hollow device connected in sequence are wrapped with wrapping paper to form a whole, and the aerosol matrix is ​​wrapped with the wrapping paper; then the whole formed by the filter body and the hollow device and the wrapped aerosol matrix are partially wrapped with the wrapping paper to prepare the aerosol generating device.

[0137] Example 2

[0138] The aerosol generating device prepared in Example 2 is basically the same as that in Example 1, except that the mint flavoring substance is sprayed on the corrugated paper at a rate of 0.05 mg / aerosol generating device, the corrugation height of the corrugated paper is 0.5 mm, and the number of corrugations is 200 / 300 mm.

[0139] Example 3

[0140] The aerosol generating device prepared in Example 3 is substantially the same as that in Example 1, except that 0.05 mg of blueberry flavoring material is sprayed onto the corrugated paper per aerosol generating device.

[0141] Example 4

[0142] The aerosol generating device prepared in Example 4 is basically the same as that in Example 1, except that: particulate matter is used for aromatherapy, and diatomaceous earth particles carrying coffee and tea aroma substances are added to the gaps between the corrugated paper. The particle size of the diatomaceous earth particles is 60 mesh, and the amount of aroma substance added is 0.02 mg / aerosol generating device.

[0143] Example 5

[0144] The aerosol generating device prepared in Example 5 is basically the same as that in Example 1, except that particulate matter is used for fragrance, and activated carbon particles loaded with blueberry flavor substances are filled in the gaps between the corrugated paper. The particle size of the activated carbon particles is 120 mesh.

[0145] Example 6

[0146] The aerosol generating device prepared in Example 6 is basically the same as that in Example 1, except that the guide layer is made of embossed paper, and the blueberry flavoring material is coated on the embossed paper; the average height of the embossed paper is 0.5 mm, and the area occupied by a single emboss is 1 mm. 2 , all bumps account for 5% of the bump paper area.

[0147] Example 7

[0148] The aerosol generating device prepared in Example 7 is basically the same as that in Example 1, except that the coffee aroma and tea aroma substances are coated on the corrugated paper.

[0149] Example 8

[0150] The aerosol generating device prepared in Example 8 is basically the same as that in Example 1, except that the coffee and tea aroma substances are coated on the embossed paper; the average height of the embossed paper is 2.5 mm, and the area occupied by a single emboss is 4 mm. 2 , all bumps account for 60% of the bump paper area.

[0151] Comparative Example 1

[0152] The aerosol generating device prepared in Comparative Example 1 is substantially the same as that in Example 1, except that the hollow device is omitted and the flavoring material is added to the filter segment.

[0153] Comparative Example 2

[0154] The aerosol generating device prepared in Comparative Example 2 is substantially the same as that in Example 1, except that the hollow device is omitted and the flavoring substance is added to the aerosol matrix.

[0155] Comparative Example 3

[0156] The aerosol generating device prepared in Comparative Example 3 is substantially the same as that in Example 2, except that the hollow device is omitted and the flavoring material is added to the filter segment.

[0157] Comparative Example 4

[0158] The aerosol generating device prepared in Comparative Example 4 is substantially the same as that in Example 2, except that the hollow device is omitted and the flavoring substance is added to the aerosol matrix.

[0159] Comparative Example 5

[0160] The aerosol generating device prepared in Comparative Example 5 is substantially the same as that in Example 3, except that the hollow device is omitted and the flavoring material is added to the filter segment.

[0161] Comparative Example 6

[0162] The aerosol generating device prepared in Comparative Example 6 is basically the same as that in Example 3, except that the hollow device is omitted and the flavoring substance is added to the aerosol matrix segment.

[0163] Comparative Example 7

[0164] The aerosol generating device prepared in Comparative Example 7 is substantially the same as that in Example 4, except that the hollow device is omitted and the flavoring material is added to the filter segment.

[0165] Comparative Example 8

[0166] The aerosol generating device prepared in Comparative Example 8 is substantially the same as that in Example 4, except that the hollow device is omitted and the flavoring substance is added to the aerosol matrix.

[0167] Comparative Example 9

[0168] The aerosol generating device prepared in Comparative Example 9 is basically the same as that in Example 5, except that the hollow device is omitted, and particulate matter is used for fragrance, and the fragrance particles are added into the cavity of the hollow part of the hollow section.

[0169] Comparative Example 10

[0170] The aerosol generating device prepared in Comparative Example 10 is basically the same as that in Example 5, except that the hollow device is omitted and the flavoring substance is coated on the inner wall of the hollow section.

[0171] Comparative Example 11

[0172] The aerosol generating device prepared in Comparative Example 11 is basically the same as that in Example 7, except that the hollow device is omitted, and particulate matter is used for fragrance, and the fragrance particles are added into the cavity of the hollow part of the hollow section.

[0173] Comparative Example 12

[0174] The aerosol generating device prepared in Comparative Example 12 is basically the same as that in Example 7, except that the hollow device is omitted and the flavoring substance is coated on the inner wall of the hollow section.

[0175] An evaluation panel consisting of seven cigarette sensory quality evaluation experts conducted a sensory quality evaluation on the prepared aerosol generating device.

[0176] The aroma substances, the amount of aroma substances added, the location of aroma substance addition, and the sensory quality evaluation results in the aerosol generating device preparation methods of Examples 1 to 4 and Comparative Examples 1 to 8 are shown in Table 1.

[0177] Table 1

[0178]

[0179] Group 1 used central heating, while Groups 2-4 used peripheral heating. Groups 1-3 added fragrance particles to the hollow device by spraying the fragrance directly onto the corrugated paper. Group 4 added fragrance particles into the voids of the diversion layer structure.

[0180] The aroma substances, aroma substance addition positions, sensory quality evaluation results, and glycerol release amounts in the aerosol generating device preparation methods of Examples 5 to 8 and Comparative Examples 9 to 12 are shown in Table 2.

[0181] Table 2

[0182]

[0183] The test conditions for glycerol release are: ambient heating mode, with the heating temperature set at 220°C; smoking using a linear smoking machine, with the following smoking parameters: puff volume 55mL; puff time 2s; puff interval 30s; number of puffs 8; preheating time 18s; and a bell-shaped puff curve.

[0184] From the results in Table 1, it can be seen that when flavoring substances are added to the filter, the aroma is lighter, more natural, and the aroma concentration in the first few puffs is lower; when flavoring substances are added to the aerosol matrix, the aroma is strong, but the naturalness is not enough, and the puffing is inconsistent; when flavoring substances are added to the hollow device, the aroma is strong, the naturalness is better, the aroma is coordinated, the release is long-lasting, and the puffing is uniform and consistent.

[0185] From the results in Table 2, it can be seen that when fragrance particles are added to the hollow cavity of the hollow section, the fragrance release is uneven, the front and back puffs are inconsistent, and the aerosol release amount is significantly reduced; when fragrance particles are coated on the inner wall of the hollow section, the fragrance release is uneven, and the front and back puffs are inconsistent; when fragrance particles are added to the guide layer, the fragrance is rich, natural, coordinated, and released for a long time. The front and back puffs are uniform and consistent, and the aerosol release amount is large.

[0186] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0187] The above embodiments merely represent several implementation methods of the present application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that a person of ordinary skill in the art can make a number of variations and improvements without departing from the concept of the present application, and these are all within the scope of protection of the present application. Therefore, the scope of protection of the patent in this application shall be based on the attached claims, and the description and drawings may be used to interpret the content of the claims.

Claims

1. An aerosol generating device, characterized in that: The invention comprises a filter section, a hollow section and an aerosol matrix section connected in sequence, wherein the hollow section comprises a hollow device, the hollow device comprises a flow-guiding layer, and the flow-guiding layer comprises a flow-guiding channel; The wall thickness of the hollow device is 0.6 mm to 2.7 mm; the guide layer is a hollow guide layer provided with the guide channel; the guide layer is rolled to form a hollow tubular structure.

2. The aerosol generating device according to claim 1, wherein The wall thickness of the hollow device is 1.0 to 2.7 mm.

3. The aerosol generating device according to claim 1, wherein The hollow device further includes wrapping paper, which is arranged on at least one of the inner wall and the outer wall of the hollow tubular structure formed by rolling the guide layer.

4. The aerosol generating device according to any one of claims 1 to 3, wherein: At least one surface of the guide layer has a concave-convex structure.

5. The aerosol generating device according to claim 4, characterized in that The concave-convex structure includes at least one of a corrugated structure and a matrix concave-convex structure.

6. The aerosol generating device according to any one of claims 1 to 3, wherein: The guide layer is made of corrugated paper, the corrugation height of the corrugated paper is 0.5 mm to 2.5 mm, and the number of corrugations in the corrugated paper is 100 to 200 per 300 mm length in the extending direction of the corrugations.

7. The aerosol generating device according to any one of claims 1 to 3, wherein: The guide layer is a convex paper with a plurality of protrusions, the average height of the protrusions is 0.5mm to 2.5mm, and the area occupied by a single protrusion is 1mm. 2 ~4mm 2 , all of the protrusions account for 5% to 60% of the area of ​​the convex paper.

8. The aerosol generating device according to any one of claims 1 to 3, wherein: The guide layer is a convexo-concave paper with a plurality of protrusions and concave pits. The average height of the protrusions is 0.5 mm to 2.5 mm, the average depth of the concave pits is 0.5 mm to 2.5 mm, and the area occupied by a single protrusion or concave pit is 1 mm. 2 ~4mm 2 , all of the protrusions and the depressions account for 5% to 60% of the area of ​​the embossed paper.

9. The aerosol generating device according to any one of claims 1 to 3, wherein: The hollow device comprises a fragrance segment and a fragrance-free segment connected to each other, wherein the fragrance segment is located between the aerosol matrix and the fragrance-free segment.

10. The aerosol generating device according to claim 9, characterized in that The axial length ratio of the fragrance-added section to the fragrance-free section is 1:5 to 5:

1.

11. The aerosol generating device according to claim 9, wherein: The wall thickness ratio of the fragrance section to the fragrance-free section is 1:0.5-1.

12. The aerosol generating device according to any one of claims 1 to 3, wherein: The total length of the hollow device is 5 to 50 mm.

13. The aerosol generating device according to any one of claims 1 to 3, wherein: The hollow component is cylindrical and coaxially attached to the inner wall of the hollow section.

14. An aerosol generating system, characterized in that: The invention comprises the aerosol generating device and the heating device according to any one of claims 1 to 13.

15. The aerosol generating system according to claim 14, wherein: The heating device includes a heating component, a battery component for supplying power to the heating device, a control component for controlling the battery component, and a housing for accommodating the heating component, the battery component, and the control component.

16. The aerosol generating system according to claim 15, wherein: The heating length of the heating component in the hollow section is 0-100% of the length of the hollow section, and the heating position extends from the adjacent portion of the hollow section and the aerosol matrix to the adjacent portion of the hollow section and the filter section.

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