CN216961478U - Heating cigarette - Google Patents

Abstract

The utility model belongs to the technical field of heating cigarettes, and particularly relates to a heating cigarette. The heated cigarette comprises: an empty tube (15); a hollow cooling support piece (12), a blocking limiting piece (13) and a smoke substance (14) are sequentially arranged in the hollow tube (15) from downstream to upstream; the hollow cooling support piece (12) is a corrugated pipe and comprises a peripheral hollow pipe (121), an internal hollow pipe (122), and a corrugated layer (123) between the peripheral hollow pipe (121) and the internal hollow pipe (122). The heating cigarette is provided with the hollow cooling support piece, so that the problem that the filter piece moves in the using process can be effectively solved. Particularly, the hollow cooling support piece is provided with the peripheral airflow channel, so that the total particulate matter of the smoke of the heated cigarette can be greatly improved, and indirectly shows that the structure of the heated cigarette is favorable for improving the smoke quantity of the heated cigarette.

Description

Heating cigarette

Technical Field

The utility model belongs to the technical field of heating cigarettes, and particularly relates to a heating cigarette.

Background

Along with the continuous improvement of living standard of people, people pay more and more attention to self health problems, and in recent years, the attention on smoking health problems is high. Various low-harm heated cigarettes are developed by various large enterprises at home and abroad in order to meet the changing consumption requirements.

The heating cigarette is a novel tobacco product which generates smoke through heating smoke substances, is favored by consumers due to low harm and better taste, and the market scale is rapidly expanded. The particle type heating cigarette is a heating cigarette which releases inhalable nicotine-containing aerosol by heating a particle core substrate. At present, the granular heating cigarette sold in the market mostly adopts the four-section structural design of a filtering section, a hollow cooling section, a plugging limiting section and a smoking section, the hollow cooling section is a section of cavity, and the structure has the following problems: during smoking, the smoke amount is small; the filter rod in the filtering section is unsupported, and the filter rod can move to the hollow cooling section under the action of external force in the using process; the hollow cooling section is extruded by external force to generate non-reversible deformation.

The present invention has been made to solve the above problems.

SUMMERY OF THE UTILITY MODEL

In a first aspect, the present invention provides a heated cigarette comprising: an empty tube 15;

a hollow cooling support member 12, a blocking limiting member 13 and a smoke substance 14 are sequentially arranged in the hollow tube 15 from downstream to upstream;

the blocking limiting piece 13 is a gear-shaped structure with an axial through hole 132, and an air passage 131 through which air flow can pass is formed between the outer wall of the gear-shaped structure and the inner wall of the hollow tube 15;

the hollow cooling support 12 is a corrugated pipe, and includes a peripheral hollow pipe 121, an internal hollow pipe 122, a corrugated layer 123 between the peripheral hollow pipe 121 and the internal hollow pipe 122, the peripheral hollow pipe 121, the internal hollow pipe 122, and the corrugated layer 123 are all coaxially disposed, a peripheral airflow channel 124 is formed between the peripheral hollow pipe 121 and the internal hollow pipe 122, an intermediate airflow channel 125 is formed between the internal hollow pipes 122, the through hole 132 is communicated with the intermediate airflow channel 125, and the air channel 131 is communicated with the peripheral airflow channel 124.

Preferably, in the radial direction of the heated cigarette, the maximum size of the air channel 131 is A, the maximum size of the peripheral air flow channel 124 is B, and A: B is 0.5-2. More preferably, A: B is 0.5 to 1.5. More preferably, A and B are 0.5 to 1. That is, the radial dimension of the air passage does not change greatly in the process that the smoke generated by the smoke generating section flows from the air passage 131 to the peripheral airflow passage 124.

Preferably, in the radial direction of the heated cigarette, the maximum dimension a of the air passage 131 is equal to the maximum dimension B of the peripheral air flow passage 124. A ofD is smaller than the tobacco particles₅₀And (4) the particle size.

Preferably, the shape of the corrugation in the corrugated layer 123 is "V" shape, "U" shape, trapezoid shape or arc shape. That is, the corrugated layer 123 is formed by several repeated "V" -shaped, "U" -shaped, trapezoidal or arc-shaped units.

Preferably, the cross-sectional shape of the air passage 131 is an irregular figure, one side of which is a circular arc shape, and the other side of which is a "V" -shape, a "U" -shape, a trapezoid shape or an arc shape.

One side of the irregular figure is a side close to the hollow tube 15 and can be regarded as the bottom side of the irregular figure.

The other side of the irregular pattern is a side far from the empty pipe 15.

More preferably, the shape of the corrugations in the corrugated layer 123 is the same as the shape of the cross section of the air passage 131.

Preferably, a filter element 11 abuts downstream of the hollow temperature-reducing support 12.

Preferably, the filter element 11 is a filter rod made of a material selected from: one or more of acetate fiber, propylene fiber, polylactic acid fiber, paper and polyethylene terephthalate silk bundle.

Preferably, the material of the hollow cooling support 12 is selected from: paper, non-woven fabrics, acetate fibers, propylene fibers, polylactic acid fibers, polyethylene terephthalate and polytetrafluoroethylene.

Preferably, the material of the blocking stopper 13 is selected from: one or more of polycarbonate, polyether ether ketone, polyethylene, polypropylene, polystyrene, polylactic acid, polyethylene terephthalate, polytetrafluoroethylene, ceramics and paper;

preferably, the smoking substance 14 is selected from one or more of a particulate smoking material, a filamentary smoking material, a rod-shaped smoking material or a powdered smoking material;

when the smoking material 14 is a particulate smoking material, the distal lip end of the heated cigarette 1 is provided with a closure 16 and the size of the through-hole 132 is smaller than the size of the particulate smoking material to prevent particles from escaping.

In a second aspect the utility model provides the use of a heated cigarette according to the first aspect to increase the amount of cigarette smoke or total particulate matter in cigarette smoke.

Herein, "proximal labial end" and "distal labial end" are relative terms referring to the two ends of a smoking article or a segment thereof, respectively. "labial proximal" refers to the end of a smoking article, or a section thereof, that is closer to the lips of a user when the smoking article is in use. "distal labial end" refers to the end of a smoking article, or a section thereof, that is at a greater distance from the lips of a user when the smoking article is in use.

Herein, the direction of flow of smoke within a heated cigarette when it is smoked is noted as being from "upstream" to "downstream".

The technical scheme can be freely combined on the premise of no contradiction.

Compared with the prior art, the utility model has the following beneficial effects:

1. the utility model creatively designs a heating cigarette which is provided with a hollow cooling support piece 12 and can effectively prevent the problem that a filter piece 11 moves in the using process. In particular, the hollow cooling support member 12 has the peripheral airflow channel 124, which can greatly increase the total particulate matter of the smoke of the heated cigarette, and indirectly shows that the structure of the heated cigarette of the present invention is beneficial to increasing the smoke quantity of the heated cigarette.

2. The hollow cooling support piece 12 with the innovative design can also reduce the risk of irreversible deformation of the hollow section of the heated cigarette under the extrusion of external force.

Drawings

Fig. 1 is an axial sectional view of a heated cigarette 1 and a sectional view a-a of a hollow cooling support member 12 in example 1.

Figure 2 is a schematic cross-sectional view of a hollow temperature-reducing support member 12 for heating a cigarette 1 according to example 1.

Fig. 3 is a schematic cross-sectional view of the blocking stopper 13 according to embodiment 1.

FIG. 4 is a schematic cross-sectional view of embodiment 1 at the position of the plugging stopper 13 and the empty pipe 15

List of reference numerals:

1. the cigarette heating device comprises a heating cigarette, 11, a filtering piece, 12, a hollow cooling support piece, 121, a peripheral hollow pipe, 122, an inner hollow pipe, 123, a corrugated layer, 124, a peripheral air flow channel, 125, a middle air flow channel, 13, a blocking limiting piece, 131, an air channel, 132, an axial through hole, 133, a diaphragm plate, 14, a smoke substance, 15 and a hollow pipe.

Detailed Description

The present invention will be described in further detail with reference to examples.

It will be appreciated by those skilled in the art that the following examples are illustrative of the utility model only and should not be taken as limiting the scope of the utility model. The examples do not specify particular techniques or conditions, and are performed according to the techniques or conditions described in the literature in the art or according to the product specifications. The materials or equipment used are not indicated by manufacturers, and all are conventional products available by purchase.

As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude 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 referred to as being "coupled" to another element, it can be directly coupled to the other element or intervening elements may also be present. Further, "coupled" as used herein may include wirelessly coupled.

In the description of the present invention, "a plurality" means two or more unless otherwise specified. The terms "inner," "upper," "lower," and the like, refer to an orientation or a state relationship based on that shown in the drawings, which is for convenience in describing and simplifying the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "coupled" and "provided" are to be interpreted broadly, for example, as being either fixedly coupled, detachably coupled, or integrally coupled; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention are understood as specific cases by those of ordinary skill in the art.

It will be understood by those skilled in the art that, unless otherwise defined, all terms including technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

Example 1

Referring to fig. 1, a heated cigarette 1, the heated cigarette 1 comprises an empty tube 15, and the empty tube 15 is provided with a filter element 11, a hollow cooling support element 12, a blocking limiting element 13 and a smoke substance 14 which are abutted in sequence from a near lip end to a far lip end or from a downstream to an upstream. A sealing piece 16 is bonded to the distal lip end of the hollow tube 15 to seal off the smoking material 14.

The heated cigarette 1 had a diameter of 7.2mm and a length of 45 mm. The axial lengths of the filtering piece 11, the hollow cooling support piece 12 and the blocking limiting piece 13 are respectively 10mm, 16mm and 7 mm. The empty tube 15 occupied by the smoking material 14 was 12mm in axial length.

The hollow pipe 15 is a paper hollow pipe, and the filter element 11 is a polyethylene terephthalate tow filter stick.

The hollow cooling support 12 is a corrugated pipe, and includes a peripheral hollow pipe 121, an inner hollow pipe 122, and a corrugated layer 123 between the peripheral hollow pipe 121 and the inner hollow pipe 122. The peripheral hollow pipe 121, the inner hollow pipe 122 and the corrugated layer 123 are all coaxially arranged. A peripheral air flow passage 124 is formed between the peripheral hollow pipe 121 and the inner hollow pipe 122, an intermediate air flow passage 125 is formed between the inner hollow pipes 122, the through hole 132 is communicated with the intermediate air flow passage 125, and the air passage 131 is communicated with the peripheral air flow passage 124. The outer hollow tube 121 and the inner hollow tube 122 of the hollow cooling support 12 are made of paper, and the corrugated layer 123 is made of non-woven fabric. The hollow temperature reducing support 13 is shown in cross-section in figure 2. The material of the peripheral hollow tube 121 is molding paper.

The corrugated layer 123 may be separately prepared: firstly, rolling a sheet material through a die to form a sheet material with a concave part and a convex part; the sheet having the concave and convex portions is then rolled to form a tubular structure to obtain the corrugated layer 123.

The corrugated layer 123 may also be formed during the preparation of the hollow cooling support 12: firstly, rolling the sheet material to form a sheet with a concave part and a convex part, then gluing and bonding the sheet with the concave part and the convex part on the forming paper to form a composite sheet, wrapping the composite sheet on an inner hollow pipe, gluing and sealing, and cutting to obtain the hollow cooling support piece 12 with three layers of materials.

The thickness of the corrugated layer 123 is 1mm, i.e. the maximum dimension B of the peripheral air flow channel 124 in the radial direction of the heated cigarette is 1 mm. In this embodiment, the shape of the corrugations in the corrugated layer 123 is a "V" shape. The cross-sectional shape of the peripheral airflow passage 124 is a triangle-like shape, and the base of the triangle-like shape is a circular arc. B is the distance from the middle point of the arc to the vertex of the triangle-like shape, and is also the distance between the peripheral hollow tube 121 and the inner hollow tube 122.

The blocking limiting member 13 is a gear-shaped structure having an axial through hole 132, and an air passage 131 through which air can pass is formed between an outer wall of the gear-shaped structure and an inner wall of the hollow tube 15. Specifically, the blocking limiting part 13 is a hollow cylindrical gear, and a circular sheet-shaped diaphragm 133 is arranged at the center. The diaphragm 133 is provided with 4 axial through holes 132 on the outer periphery. The through hole 132 is an arc slit type gap. The specific shape and size of the four axial through holes 132 may be the same or different. The teeth circumferentially distributed on the gear of the blocking limiting piece 13 are shaped like an axe, so that the cross section of the formed air passage 131 is shaped like a semi-ellipse, the bottom edge of the semi-ellipse is a section of circular arc where the hollow pipe 15 is located, and the other edge of the semi-ellipse is shaped like a U. In the radial direction of the heated cigarette, the maximum dimension a of the air passage 131 is 0.5 mm. A is the distance between the middle point of the arc of the bottom edge of the semi-ellipse and the vertex of the semi-ellipse. The material of the blocking limiting piece 13 is polycarbonate.

The smoking material 14 is a loosely packed particulate smoking material. The sealing piece 16 is made of paper with air permeability of 6000 CU. The through holes 132 and air channels 131 are smaller in size than the particulate smoking material to prevent particles from escaping.

Example 2

The filter element 11 of example 1 was prepared as a filter plug of cellulose acetate, and the contents were kept unchanged.

Comparative example 1

Compared to example 1, the heated cigarette 1 of comparative example 1 has no hollow cooling support 13, and the rest remains unchanged.

Comparative example 2

Compared with example 2, the heated cigarette of comparative example 2 has no hollow cooling support 13, and the rest of the contents are kept unchanged.

Application example 1

And (3) smoking the heated cigarettes prepared in the above examples and comparative examples by using an electronic cigarette comprehensive testing platform. The cigarette smoking parameters are as follows: suction curve: a bell shape; suction capacity: 35 mL; duration of suction: 2 s; suction interval: for 30 s. Each heated cigarette is smoked for 12 mouths, a Cambridge filter disc with the diameter of 44mm is used for sequentially collecting aerosol particulate matters, each filter disc collects the particulate matters of a heated cigarette sample for 12 mouths, and the measurement results are shown in a table 1.

From the results in table 1, it can be seen that:

1. the total particulate matter of the sample of example 1 was unexpectedly increased by 23.4% compared to comparative example 1;

2. the total particulate phase of the example 2 sample was also increased by 33.1% compared to comparative example 2.

Table 1 shows that the heated cigarette with the hollow cooling support 12 of the present invention can increase the total particulate matter of the sample, indirectly showing that the structure of the heated cigarette of the present invention is advantageous for increasing the amount of smoke of the heated cigarette.

In addition, as can be seen from table 1, the problem of movement of the filter member 11 for heating cigarette samples after the hollow temperature-reducing support member 12 is added is solved. In addition, the corrugated layer 123 of the hollow cooling support 12 is easy to restore after being extruded, which can reduce the risk that the hollow section of the heated cigarette is irreversibly deformed when being extruded by external force.

TABLE 1 statistics of total particulate matter and filter element migration for heated cigarette samples

The reason why the above-mentioned hollow cooling support 12 has such an unexpected technical effect of increasing the total particulate matter of the flue gas may be as follows:

in the present invention, the flow direction of the flue gas generated by the smoke generation section 14 is divided into two parts:

a first part of smoke directly flows into the middle airflow channel 125 from the through hole 132 in the middle of the blocking limiting part 13, and then flows out of the filter element 11 to heat the cigarette;

the second part of the smoke flows from the air duct 131 directly into the peripheral air flow passage 124 and then out of the heated cigarette through the filter element 11.

Since the cross-sectional area of the through hole 132 is much smaller than the cross-sectional area of the middle airflow path 125, the flow area of the first portion of the flue gas flowing from the through hole 132 into the middle airflow path 125 is suddenly increased.

Because the smoke is in an aerosol state, if solid or liquid particles in the aerosol collide, agglomerate and polymerize in the circulation process, the content of large particles is increased, and therefore the large particles can be collected by the filter disc in the test process, and the mass of the total particulate matters in the aerosol is increased. However, when the flow area is suddenly increased, the chances of collision, agglomeration and polymerization of solid or liquid particles are reduced, and even large particles are dispersed into small particles, so that the small particles are not captured by the filter disc in the test process, the total particle mass in the first part of smoke is reduced, and the smoke amount is reduced visually. In other words, the existence of the through hole 132 in the middle of the blocking limiting member 13 actually loses the original mass of the total particulate matter and the smoke amount of the first part of the smoke.

The second part of smoke directly flows into the peripheral airflow channel 124 from the air channel 131, and in the process, because the radial size change of the air channel is not large, the collision, agglomeration and polymerization of solid or liquid particles in the circulation process are not influenced, so that the total particle mass in the aerosol is not reduced, and the original smoke quantity of the second part of smoke is not lost.

In summary, the existence of the hollow cooling support 12 increases the total particulate matter mass and the amount of smoke compared to when the hollow cooling support 12 is not used.

Claims (6)

1. The heating cigarette is characterized by comprising an empty tube (15), wherein a hollow cooling support part (12), a blocking limiting part (13) and a smoke substance (14) are sequentially arranged in the empty tube (15) from downstream to upstream;

the blocking limiting piece (13) is of a gear-shaped structure with an axial through hole (132), and an air passage (131) through which air flow can pass is formed between the outer wall of the gear-shaped structure and the inner wall of the hollow pipe (15);

hollow cooling support piece (12) are the flute pipe, and it includes flute layer (123) between peripheral air pipe (121), inside air pipe (122), peripheral air pipe (121) and inside air pipe (122), and peripheral air pipe (121), inside air pipe (122), flute layer (123) three are coaxial setting, form periphery airflow channel (124) between peripheral air pipe (121) and inside air pipe (122), form middle airflow channel (125) between inside air pipe (122), through-hole (132) with middle airflow channel (125) intercommunication, air flue (131) with periphery airflow channel (124) intercommunication.

2. The heated cigarette of claim 1, wherein in a radial direction of the heated cigarette, the maximum dimension of the air passageway (131) is A, and the maximum dimension of the peripheral airflow passageway (124) is B, and A: B is 0.5-2.

3. The heated cigarette of claim 1, wherein a maximum dimension A of the air passageway (131) is equal to a maximum dimension B of the peripheral air flow passageway (124) in a radial direction of the heated cigarette.

4. The heated cigarette of claim 1, wherein the corrugations in the corrugated layer (123) are "V" -shaped, "U" -shaped, trapezoidal or arcuate in shape.

5. The heated cigarette of claim 1, wherein the cross-sectional shape of the air channel (131) is an irregular pattern having one side in the shape of a circular arc and the other side in the shape of a "V", "U", trapezoid or arc.

6. The heated cigarette according to claim 1, wherein a filter element (11) is in abutment downstream of the hollow cooling support (12).

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