阅读说明：本技术 冷却元件、降温滤棒和加热不燃烧烟具 (Cooling element, cooling filter stick and heating non-combustible smoking set ) 是由 张家鑫 周虎 樊秀兰 于 2020-04-29 设计创作，主要内容包括：本发明实施例提供了一种冷却元件、降温滤棒和加热不燃烧烟具,其中,冷却元件包括：壳体,所述壳体开设有相对的进气端口与出气端口；多个降温覆膜,固定在所述壳体内,相邻的两个所述降温覆膜之间具有间隙,所述降温覆膜包括相对设置的第一边沿与第二边沿,所述第一边沿延伸至所述进气端口,所述第二边沿延伸至所述出气端口,所述降温覆膜包括金属箔以及覆盖于所述金属箔的表面的导热薄膜。通过本发明的技术方案,能够提升对流经冷却元件的烟气的降温效果,并防止降温覆膜接触高温烟气后出现相变熔融现象。(The embodiment of the invention provides a cooling element, a cooling filter stick and a smoking set which is not heated to burn, wherein the cooling element comprises: the air inlet port and the air outlet port are opposite to each other; a plurality of cooling tectorial membranes are fixed in the casing, adjacent two the clearance has between the cooling tectorial membrane, the cooling tectorial membrane is including relative first border and the second border that sets up, first border extends to inlet port, the second border extends to outlet port, the cooling tectorial membrane include the foil and cover in the heat conduction film on foil's surface. Through the technical scheme of the invention, the cooling effect on the flue gas flowing through the cooling element can be improved, and the phenomenon of phase change melting after the cooling film is contacted with the high-temperature flue gas is prevented.)

1. A cooling element for heating a non-burning smoking article, comprising:

the shell is provided with an air inlet port and an air outlet port which are opposite;

a plurality of cooling tectorial membranes are fixed in the casing, adjacent two the clearance has between the cooling tectorial membrane, the cooling tectorial membrane is including relative first border and the second border that sets up, first border extends to inlet port, the second border extends to outlet port, the cooling tectorial membrane include the foil and cover in the heat conduction film on foil's surface.

2. Cooling element according to claim 1,

two adjacent cooling coating films are arranged in parallel, and/or an included angle is formed between the two adjacent cooling coating films;

the cooling tectorial membrane still includes relative third border and the fourth edge that sets up, the third border extends to the inner wall of one side of casing, the fourth edge extends to the inner wall of the opposite side of casing.

3. The cooling element of claim 1, further comprising:

the support is fixed in the shell, two ends of the support respectively extend to the air inlet port and the air outlet port, and the support is used for fixing the cooling film.

4. The cooling element according to claim 3, wherein the bracket comprises a first supporting column, a first mounting part and a second mounting part are respectively arranged at two ends of the first supporting column, the first mounting part is fixedly connected with the air inlet port, and the second mounting part is fixedly connected with the air outlet port;

the plurality of cooling coating films are arranged along the circumferential direction of the first support column;

the cooling tectorial membrane still includes relative third border and the fourth edge that sets up, the third border extends to the outer wall of first support column, the fourth edge extends to the inner wall of casing.

5. Cooling element according to claim 3,

the support comprises a second support column and a plurality of support plates which are arranged at intervals along the circumferential direction of the second support column, and the support plates extend to the inner wall of the shell along the radial direction of the second support column;

every be provided with a set of in the backup pad the cooling tectorial membrane, every group the cooling tectorial membrane is followed the radial interval of second support column is arranged.

6. Cooling element according to one of the claims 1 to 5,

the cooling film is of a plane sheet structure and/or a curved surface sheet structure.

7. The cooling element of claim 1, wherein the temperature reducing coating is configured as a tubular structure forming a coated tube,

the two ends of the film-coated pipe are respectively the first edge and the second edge, a plurality of film-coated pipes are arranged in parallel,

wherein the content of the first and second substances,the density of the film-coated tube in the shell is more than or equal to 60/mm²And less than or equal to 100 pieces/mm²。

8. Cooling element according to one of claims 1 to 5, and 7,

the number of the cooling films is configured according to the cooling area and/or the weight of the cooling films and the porosity of the cross section of the cooling element,

wherein the cooling area is greater than or equal to 300mm²A/mm and is less than or equal to 800mm²A weight of 1mg/100mm or more²And less than or equal to 10mg/mm²The porosity is greater than or equal to 50%.

9. Cooling element according to one of claims 1 to 5, and 7,

the thickness of the cooling coating is more than or equal to 20 μm and less than or equal to 300 μm;

the heat-conducting film comprises a diamond-like film and/or a composite film of the diamond-like film and a polylactic acid film.

10. A cooling filter stick for heating a non-burning smoking set is characterized by comprising:

a cooling element as claimed in any one of claims 1 to 9;

a first hollow rod connected to an intake port of the cooling element;

an acetate fiber rod, one end of which is connected to the air outlet port of the cooling element;

a second hollow rod connected to the other end of the acetate rod.

11. A cooling filter stick according to claim 10,

the inner diameter of the first hollow rod is greater than or equal to 4mm and less than or equal to 5 mm;

the inner diameter of the second hollow rod is more than or equal to 5mm and less than or equal to 6 mm;

the length of the cooling element is greater than or equal to 11mm and less than or equal to 14 mm;

the outer diameter of the cooling element is greater than or equal to 7mm and less than or equal to 8 mm.

12. A heated non-burning smoking article, comprising:

a temperature reducing filter rod according to claim 10 or 11;

a tobacco portion disposed proximate to the first hollow rod;

a mouthpiece portion disposed proximate to the second hollow rod;

a heating device for heating the tobacco portion.

Technical Field

The invention relates to the technical field of cigarette products, in particular to a cooling element, a cooling filter stick and a smoking set which is not burnt when being heated.

Background

The cigarette is heated without combustion as a novel tobacco product, the tobacco is heated by an external heating element, and as the atomized medium in the cigarette, the flavor components in the tobacco and the additional flavor are generated by heating instead of combustion, the harmful components generated by combustion and thermal cracking of the tobacco in the traditional cigarette can be greatly reduced, thereby reducing the pollution of the environmental smoke. In the related art, a polylactic acid film is used as a cooling film in a cooling element to cool flue gas.

From the above, the cooling film adopted in the prior art has a relatively small heat dissipation coefficient and a poor cooling effect on flue gas; in addition, the phase change melting phenomenon appears after contacting high-temperature flue gas, so that the flue gas channel is blocked, the passing of the flue gas is influenced, and even the flue gas quantity is sharply reduced.

Disclosure of Invention

The embodiment of the invention provides a cooling element, a cooling filter stick and a smoking set which is not burnt during heating, so that the cooling effect of a cooling film on smoke is improved, and the melting phase change generated when the smoke is contacted with high-temperature smoke is prevented.

Embodiments of a first aspect of the invention provide a cooling element for heating a non-burning smoking article, comprising:

the air inlet port and the air outlet port are opposite to each other;

a plurality of cooling tectorial membranes are fixed in the casing, adjacent two the clearance has between the cooling tectorial membrane, fixes in the casing, adjacent two the clearance has between the cooling tectorial membrane, the cooling tectorial membrane is including relative first border and the second border that sets up, first border extends to inlet port, the second border extends to the port of giving vent to anger, the cooling tectorial membrane include the foil and cover in the heat conduction film on foil's surface.

Optionally, two adjacent cooling coating films are arranged in parallel, and/or an included angle is formed between the two adjacent cooling coating films;

the cooling tectorial membrane still includes relative third border and the fourth edge that sets up, the third border extends to the inner wall of one side of casing, the fourth edge extends to the inner wall of the opposite side of casing.

Optionally, the cooling element further comprises:

the support is fixed in the shell, two ends of the support extend to the air inlet port and the air outlet port respectively, and the support is used for fixing the cooling film.

Optionally, the support includes a first support column, a first installation portion and a second installation portion are respectively disposed at two ends of the first support column, the first installation portion is fixedly connected with the air inlet port, and the second installation portion is fixedly connected with the air inlet port and the air outlet port;

the plurality of cooling coating films are arranged along the circumferential direction of the first support column;

the cooling tectorial membrane still includes relative third border and the fourth edge that sets up, the third border extends to the outer wall of first support column, the fourth edge extends to the inner wall of casing.

Optionally, the bracket includes a second support column and a plurality of support plates arranged at intervals in the circumferential direction of the second support column, and the support plates extend to the inner wall of the housing in the radial direction of the second support column;

every be provided with a set of in the backup pad the cooling tectorial membrane, every group the cooling tectorial membrane is followed the radial interval of second support column is arranged.

Optionally, the cooling film is of a planar sheet structure and/or a curved sheet structure.

Optionally, the cooling coating is configured into a tubular structure, forming a coating tube,

the two ends of the film-coated pipe are respectively the first edge and the second edge, a plurality of film-coated pipes are arranged in parallel,

wherein the density of the film-coated tube in the shell is more than or equal to 60/mm²And less than or equal to 100 pieces/mm²。

Optionally, the number of the cooling films is configured according to the cooling area and/or the weight of the cooling films and the porosity of the cross section of the cooling element,

wherein the cooling area is large300mm or less²A/mm and is less than or equal to 800mm²A weight of 1mg/100mm or more²And less than or equal to 10mg/mm²The porosity is greater than or equal to 50%.

Optionally, the thickness of the cooling coating is greater than or equal to 20 μm and less than or equal to 300 μm;

the heat-conducting film comprises a diamond-like carbon film or a composite film of the diamond-like carbon film and a polylactic acid film.

Embodiments of a second aspect of the present invention provide a cooling filter rod for heating a non-burning smoking article, comprising:

a cooling element as described in any one of the embodiments of the first aspect of the invention;

a first hollow rod connected to an intake port of the cooling element;

an acetate fiber rod, one end of which is connected to the air outlet port of the cooling element;

a second hollow rod connected to the other end of the acetate rod.

Optionally, the inner diameter of the first hollow rod is greater than or equal to 4mm and less than or equal to 5 mm;

the inner diameter of the second hollow rod is more than or equal to 5mm and less than or equal to 6 mm;

the length of the cooling element is greater than or equal to 11mm and less than or equal to 14 mm;

the outer diameter of the cooling element is greater than or equal to 7mm and less than or equal to 8 mm.

Embodiments of a third aspect of the invention provide a heated non-burning smoking article comprising:

a cooling filter rod according to any one of the embodiments of the second aspect of the invention;

a tobacco portion disposed proximate to the first hollow rod;

a mouthpiece portion disposed proximate to the second hollow rod;

a heating device for heating the tobacco portion.

According to the embodiment of the invention, the cooling element for heating the non-combustion smoking set is formed by combining the shell and the plurality of cooling films in the shell, and the cooling films are further prepared by the metal foil and the heat-conducting film covered on the surface of the metal foil, because the metal foil has the characteristic of reducing heat radiation, and the heat-conducting film has higher heat conductivity, compared with the cooling films formed by polylactic acid films in the prior art, the formed cooling films can improve the cooling effect on smoke flowing through the cooling element on one hand, so that the temperature of the smoke is reduced to the temperature suitable for a user, and on the other hand, the phase change melting phenomenon after the cooling films are contacted with high-temperature smoke can be prevented, so that the non-combustion smoking set can be heated to generate sufficient smoke.

Drawings

FIG. 1 shows a perspective view of a cooling element of an embodiment of the present invention;

figure 2 shows an axial cross-section of a cooling element according to a first embodiment of the invention;

FIG. 3 shows a schematic cross-sectional view of section A-A of FIG. 2;

figure 4 shows an axial cross-section of a cooling element according to a second embodiment of the invention;

FIG. 5 shows a schematic cross-sectional view of section B-B of FIG. 4;

figure 6 shows an axial cross-section of a cooling element according to a third embodiment of the invention;

FIG. 7 shows a schematic cross-sectional view of section C-C of FIG. 6;

fig. 8 shows an axial cross-section of a cooling element according to a fourth embodiment of the invention;

FIG. 9 shows a schematic cross-sectional view of section D-D of FIG. 8;

figure 10 shows an axial cross-section of a temperature reducing filter rod according to a first embodiment of the present invention;

figure 11 shows an axial cross-section of a temperature reducing filter rod according to a second embodiment of the present invention;

figure 12 shows an axial cross-section of a temperature reducing filter rod according to a third embodiment of the present invention;

figure 13 shows an axial cross-section of a temperature reducing filter rod according to a fourth embodiment of the present invention.

Wherein, the correspondence between the reference numbers and the component names in fig. 1 to 13 is:

10 cooling elements, 102 shells, 104 cooling films, 104A first cooling film, 104B first cooling film, 106 first stents, 108 second stents, 20 first hollow rods, 30 cellulose acetate rods and 40 second hollow rods.

Detailed Description

So that the manner in which the above recited objects, features and advantages of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to the embodiments thereof which are illustrated in the appended drawings. It should be noted that the embodiments of the present invention and features of the embodiments may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

Some embodiments according to the invention are described below with reference to fig. 1 to 13.

As shown in fig. 1, an embodiment of the present invention provides a cooling element for heating a non-burning smoking article, comprising: a housing 102 and a plurality of cooling membranes 104.

The housing 102 defines an inlet port and an outlet port opposite to each other.

The inside of the housing 102 forms a flow of flue gas by opening the gas inlet port and the gas outlet port.

In addition, the housing 102 may be a housing 102 with a constant cross section, such as a rectangle, a circle, an ellipse, a regular polygon, etc.

Preferably, the cross-section is circular, i.e., the housing 102 is a cylindrical housing 102.

A plurality of cooling tectorial membranes 104 are fixed in casing 102, have the clearance between two adjacent cooling tectorial membranes 104, and including relative first border and the second border that sets up in cooling tectorial membrane 104, first border extends to the inlet port, and the second border extends to the outlet port, and cooling tectorial membrane 104 includes the metal foil and covers the heat conduction film on the surface of metal foil.

In the cylindrical shell 102, a first edge and a second edge, which are oppositely arranged in the cooling coating 104, extend to the air inlet and the air outlet respectively, which can be understood as that the cooling coating 104 extends along the axial direction of the cylindrical shell 102.

Have the clearance between two adjacent cooling tectorial membranes 104, at least including following two kinds of implementation, the first kind, two cooling tectorial membranes 104 parallel arrangement, the clearance is the definite value promptly, and the second kind, two cooling tectorial membranes 104 have the contained angle, and two cooling tectorial membranes 104 have common link promptly, or the extension area of two cooling tectorial membranes 104 has the intersection, and the clearance is the variable promptly.

In addition, the thickness of the cooling coating film 104 is not less than 20 μm and not more than 300 μm; the metal foil can be aluminum foil, copper foil, tin foil and the like, the thickness of the metal foil is between 7 and 150 mu m, the heat conducting film can be one or two of a diamond-like film and a composite film formed by the diamond-like film and a polylactic acid film, the thickness of the diamond-like film can be between 3 and 50 mu m, and the thickness of the polylactic acid film can be between 10 and 200 mu m.

According to the cooling element provided by the embodiment of the invention, the cooling element for heating the non-combustion smoking set is formed by combining the shell and the plurality of cooling coating films in the shell, and the cooling coating films are further prepared by the metal foil and the heat-conducting film covered on the surface of the metal foil, because the metal foil has the characteristic of reducing heat radiation, and the heat-conducting film has higher heat conductivity, compared with the cooling coating film formed by adopting the polylactic acid film in the prior art, on one hand, the cooling effect on smoke flowing through the cooling element can be improved, so that the temperature of the smoke is reduced to the temperature suitable for a user, and on the other hand, the phase change melting phenomenon after the cooling coating film is contacted with high-temperature smoke can be prevented, so that the heating non-combustion smoking set generates sufficient smoke.

The first embodiment is as follows:

as shown in fig. 2, embodiments of the present invention provide a first cooling element for heating a non-burning smoking article, comprising: the housing 102 and the plurality of cooling films 104A, and the aforementioned limitation on the housing 102 and the cooling films 104A is not repeated herein.

The cooling coating 104A is a planar sheet structure and/or a curved sheet structure, and includes a third edge and a fourth edge that are arranged oppositely on the cooling coating 104A, the third edge extends to the inner wall of one side of the housing 102, and the fourth edge extends to the inner wall of the other side of the housing 102.

The cooling element is composed of a cooling coating 104A with a cooling function, the cooling coating 104A is composed of a metal foil and a diamond-like film covered on the metal foil, as shown in fig. 3, the rod-shaped structure of the cooling element is composed of a shell 102 of the cooling element and a plurality of layers of cooling coatings 104A arranged in the shell 102 through interval arrangement, and the distance between any two adjacent layers of cooling coatings 104A is equal.

The thickness of the metal foil is about 80 μm, the thickness of the diamond-like film is about 20 μm, the thickness of the whole cooling coating 104A is 100 μm, and the distance between two adjacent cooling coatings 104A is 80 μm-160 μm. The cooling area of the cooling element is 400mm per mm²-800mm²In the meantime.

The porosity of the cooling element cross-section is greater than 50%, so that there is a lower resistance to the flue gas from the upstream end of the cooling element to the downstream end of the cooling element.

On one hand, the cooling element provided by the embodiment of the invention has a simpler structure and a simpler preparation method, does not need a complex process and expensive equipment, and thus the preparation method of the smoking set with the cooling element is simple, on the other hand, the cooling effect on smoke can be improved by adopting the diamond-like carbon film with high heat conductivity coefficient, on the other hand, the arrangement mode of the cooling coating film enables the smoke to easily form turbulent flow in a cavity, and the contact time with the cooling coating film is prolonged, so that the cooling efficiency on the smoke is improved, and thus the comfortable feeling and the satisfaction feeling of smoke suction are improved, on the other hand, the cooling effect of the cooling element is greatly improved, so that the length of the cooling element can be shortened and/or the volume of the cooling element is reduced, and the miniaturization optimization of the whole length and volume of the smoking set is realized.

Optionally, the cooling element further comprises: the support is fixed in the shell 102, two ends of the support respectively extend to the air inlet port and the air outlet port, and the support is used for fixing the cooling film.

Example two:

as shown in fig. 4, embodiments of the present invention provide a second cooling element for heating a non-burning smoking article, comprising: the housing 102, the plurality of cooling membranes 104B, and the first stent 106 are not described in detail herein, since the housing and the cooling membranes are defined as described above.

As shown in fig. 5, the first support 106 includes a first support column, a first installation portion and a second installation portion (not shown in the figure) are respectively disposed at two ends of the first support column, the first installation portion is fixedly connected with the air inlet port, the second installation portion is fixedly connected with the air outlet port, a plurality of cooling coating films 104B are arranged along the circumferential direction of the first support column, the cooling coating films 104B further include a third edge and a fourth edge which are arranged relatively, the third edge extends to the outer wall of the first support column, and the fourth edge extends to the inner wall of the housing 102.

Preferably, in the cylindrical case 102, the first support column overlaps with the axis of the cylindrical case 102, and in this configuration, the plurality of cooling films 104B may have the same configuration.

The cooling element is composed of a shell 102, a first bracket 106 and a cooling film 104B, the cooling film 104B is composed of a metal foil, a diamond-like film and a polylactic acid film, the diamond-like film and the polylactic acid film are covered on the metal foil, and the cooling element is of a rod-shaped structure formed by the shell 102 of the cooling element, the first bracket 106 in the middle of the cooling element and the cooling film 104B surrounding the first bracket 106 in an annular array.

The thickness of the metal foil is about 120 μm, the thickness of the diamond-like carbon film is 20 μm, the thickness of the polylactic acid film is 50 μm, and the thickness of the entire cooling cover film 104B is 190 μm.

The cooling area of the cooling element is 600mm per mm²-800mm²In the meantime.

The porosity of the cooling element cross-section is greater than 50%, so that there is a lower resistance to the flue gas from the upstream end of the cooling element to the downstream end of the cooling element.

On one hand, the cooling element provided by the embodiment of the invention has simpler structure and preparation method, does not need complex process and expensive equipment, thereby simplifying the preparation method of the smoking set with the cooling element, on the other hand, adopting the diamond film with high heat conductivity coefficient and the polylactic acid composite film, adopting the special annular array structure for the cooling coating film, being beneficial to improving the cooling effect, on the other hand, the arrangement mode of the cooling coating can also lead the smoke to easily form turbulent flow in the cavity, prolong the contact time with the cooling coating, so as to improve the cooling efficiency of the smoke and further improve the comfort and satisfaction of smoke suction, and on the other hand, because the cooling effect of this cooling element promotes greatly, consequently also can shorten the length of cooling element and/or reduce the volume of cooling element to the realization is optimized to the miniaturization of the whole length of smoking set and volume.

Example three:

the embodiment of the present invention provides a third cooling element for heating a non-burning smoking article as shown in fig. 6, comprising: the housing 102 and the plurality of cooling films 104C, which are defined above, are not described herein again.

As shown in fig. 7, the cooling element further includes a second bracket 108 including a second support column 1082 and a plurality of support plates 1084 arranged at intervals along a circumferential direction of the second support column, the support plates extending to an inner wall of the housing 102 along a radial direction of the second support column.

Each support plate is provided with a group of cooling coating films 104C, and each group of cooling coating films 104C are arranged at intervals along the radial direction.

Preferably, in the cylindrical housing 102, the second support column 1082 coincides with the axial center of the cylindrical housing 102.

The cooling element consists of a shell 102, a second bracket 108 and a cooling film 104C, the cooling film 104C consists of a metal foil and a diamond-like film covered on the metal foil, the rod-shaped structure of the cooling element consists of the shell 102 and the second bracket 108 of the cooling element and a plurality of layers of cooling films 104C which are fixed on the second bracket 108 and are annularly and alternately laminated, and the distance between two adjacent layers of annular cooling films 104C is 20-60 mu m.

The thickness of the metal foil is about 120 μm, the thickness of the diamond-like film is 20 μm, and the thickness of the entire cooling cover film 104C is 140 μm. The cooling area of the cooling element is 500mm per mm²-800mm²In the meantime.

The porosity of the cooling element cross-section is greater than 50%, so that there is a lower resistance to the flue gas from the upstream end of the cooling element to the downstream end of the cooling element.

The cooling element provided by the embodiment of the invention has the advantages that on one hand, the structure and the preparation method are simple, and complex processes and expensive equipment are not needed, so that the preparation method of the smoking set with the cooling element is simple, on the other hand, the cooling effect on smoke can be improved by adopting the diamond-like carbon film with high heat conductivity coefficient, on the other hand, the smoke is easy to form turbulent flow in the annular cavity, the contact time with materials is long, the cooling efficiency is obviously improved, the comfortable sensation and the satisfaction of smoke suction are improved, on the other hand, the cooling effect of the cooling element is greatly improved, so that the length of the cooling element can be shortened and/or the volume of the cooling element is reduced, and the miniaturization optimization of the whole length and the volume of the smoking set is realized.

Example four:

as shown in fig. 8, a fourth cooling element for heating a non-burning smoking article is provided in accordance with an embodiment of the present invention, comprising: the housing 102 and the plurality of cooling films, and the aforementioned limitation of the housing 102 and the cooling films are not described herein again.

The cooling film is configured into a tubular structure to form a film-coated tube 104D, the two ends of the film-coated tube are respectively a first edge and a second edge, and the plurality of film-coated tubes are arranged in parallel.

The density of the coated tubes in the shell 102 is greater than or equal to 60/mm²And less than or equal to 100 pieces/mm²。

The cooling element is composed of a housing 102 and film-coated tubes 104D, the film-coated tubes 104D are micro-tube structures formed by a metal foil and a diamond-like carbon film covered thereon, and then the film-coated tubes are formed by the film, as shown in fig. 9, the rod-shaped structure of the cooling element is a rod-shaped structure formed by arranging the housing 102 of the cooling element and a plurality of film-coated tubes 104D, and the adjacent film-coated tubes 104D have a space therebetween.

The thickness of the metal foil is about 120 μm, the thickness of the diamond-like carbon film is 20 μm, the thickness of the whole cooling coating film is 140 μm, and the cooling area of the cooling element is 300mm-800mm per millimeter²In the meantime.

The porosity of the cooling element cross-section is greater than 50%, so that there is a lower resistance to the flue gas from the upstream end of the cooling element to the downstream end of the cooling element.

On one hand, the cooling element provided by the embodiment of the invention has a simpler structure and a simpler preparation method, does not need a complex process and expensive equipment, and thus the preparation method of the smoking set with the cooling element is simple, on the other hand, the cooling effect on smoke can be improved by adopting the diamond-like carbon film with high heat conductivity coefficient, on the other hand, the arrangement mode of the cooling coating film can increase the exposed cooling area and prolong the contact time with the cooling coating film while keeping larger porosity, so as to improve the cooling efficiency on the smoke, thereby improving the comfortable sensation and satisfaction of smoke suction, on the other hand, as the cooling effect of the cooling element is greatly improved, the length of the cooling element can be shortened and/or the volume of the cooling element can be reduced, thereby realizing the miniaturization optimization of the whole length and volume of the smoking set.

Optionally, the number of the cooling film is configured according to the cooling area and/or the weight of the cooling film and the porosity of the cross section of the cooling element,

wherein the cooling area is greater than or equal to 300mm²A/mm and is less than or equal to 800mm²Per mm, a weight of 1mg/100mm or more²And less than or equal to 10mg/mm²The porosity is greater than or equal to 50%.

According to the above description of the embodiments, the cooling element is a rod-shaped structure composed of the housing part and the part with a certain structural form made of the cooling film, and the structure of the cooling element can be a rod-shaped structure formed by parallelly gathering the cooling film, a rod-shaped structure formed by arranging a plurality of small rod-shaped film structures, or a rod-shaped structure formed by annularly arraying the cooling filmThe design of the structure, or in general the cooling element, is such that the cooling area of the cooling element is 300mm per mm²-1000mm²Or 10mm per millimicron weight²To 100mm²In the meantime. While the cooling element also provides a lower resistance to air passing through the bar. The cooling element does not significantly affect the resistance to draw of the flue gas, and there is a low pressure drop from the inlet port of the cooling element to the outlet port of the cooling element. To achieve this, it is preferred that the structural design and simulation analysis of the cooling element is such that the porosity of the cooling element cross-section is greater than 50% and the airflow path through the cooling element is relatively unimpeded. The longitudinal porosity of the cooling element may be defined by the ratio of the cross-sectional area of the material forming the cooling element to the internal cross-sectional area of the smoke-generating article at the portion containing the smoke cooling element.

As shown in fig. 10 to 13, an embodiment of the present invention provides a cooling filter stick for heating a non-combustion smoking set, including: a cooling element, a first hollow rod 20, an acetate rod 30 and a second hollow rod 40.

In which figure 10 shows a cooling filter stick comprising a cooling element 10A as defined in the first embodiment above.

Figure 11 shows a temperature reducing filter stick comprising a cooling element 10B as defined in the second embodiment above.

Figure 12 shows a cooling filter rod comprising a cooling element 10C as defined in the third embodiment above.

Figure 13 shows a temperature reducing filter rod comprising a cooling element 10D according to the fourth embodiment described above.

The specific connection mode comprises: the first hollow rod 20 is connected to an inlet port of the cooling unit 10, the acetate fiber rod 30, one end of the acetate fiber rod 30 is connected to an outlet port of the cooling unit 10, and the second hollow rod 40 is connected to the other end of the acetate fiber rod 30.

The average temperature of the smoke at the tail end of the second hollow rod 40 is between 35 and 38 ℃ when the smoking set is used for smoking. Is suitable for body at the most suitable temperature.

The first hollow rod 20 of the smoking set is a hollow tube which is made of poly butylene succinate which can endure 150 ℃ by an injection molding extrusion process, and the wall thickness of the hollow tube is 0.5 +/-0.05 mm.

Wherein the inner diameter of the first hollow rod 20 is greater than or equal to 4mm and less than or equal to 5mm, the inner diameter of the second hollow rod 40 is greater than or equal to 5mm and less than or equal to 6mm, the length of the cooling element 10 is greater than or equal to 11mm and less than or equal to 14mm, and the outer diameter of the cooling element 10 is greater than or equal to 7mm and less than or equal to 8 mm.

The embodiment of the invention provides a smoking set without burning during heating, which comprises: a cooling filter stick, a tobacco part, a cigarette mouthpiece part and a heating device.

The specific structure of the cooling filter stick is specifically described in the above embodiments, and will not be described herein again, and the tobacco portion is disposed near the first hollow rod, the mouthpiece portion is disposed near the second hollow rod, and the heating device is configured to heat the tobacco portion.

In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or unit must have a specific direction, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.