A smoke generator adapted to electromagnetic heating smoke appliances

Abstract

The present invention provides a smoke-generating body adapted for electromagnetic heating smoking utensils, wherein the smoke-generating body contains an induction body for induction heating, wherein the induction body is a carbon material, and the unfolded shape of the carbon material is one or more of a film, a sheet or a filament. The smoke-generating body of the present invention is applied to electromagnetic heating smoking utensils, and the smoking utensils do not need to heat up and transfer the heat to the heat conductor, and then transfer the heat to the smoke-generating body, but the smoke-generating body directly heats up, thereby improving the heating efficiency. At the same time, after the heating is completed, the smoke-generating body can be directly withdrawn from the smoking utensils without any residue, which is convenient for use.

Description

Technical Field

[0001] The invention relates to the field of heating without burning, and in particular to a smoke-generating body adapted for electromagnetic heating smoking articles. Background Art

[0002] Electric heating type smoking devices greatly reduce the release of harmful substances in cigarettes because they heat cigarettes instead of burning them. Current electric heating type smoking devices are provided with a chamber for accommodating the smoke body, and a heating needle is provided in the chamber to perform central heating of the smoke body, or the entire chamber is used as a heating element to perform peripheral heating of the smoke body. The smoke body solid will be completely contained in the chamber, or inserted into the chamber, and the smoke body will be discarded after heating. However, due to the heating process, the smoke body is easy to stick to the chamber when it is taken out, and it is not easy to fall off. There is often some residual smoke body in the chamber, causing pollution.

[0003] On the other hand, current electromagnetic heating smoking devices generally use metal materials as heating components, converting electromagnetic field energy into heat of the heating components, and then transferring it to the cigarette through conduction and other methods, so that the cigarette produces smoke for people to inhale. This structure is relatively complex, heat needs to be transferred twice, and the heating components themselves will also absorb some heat, resulting in heat loss, and there is a certain loss in actual thermal efficiency. Summary of the invention

[0004] The present invention provides a smoke-generating body adapted for an electromagnetic heating smoking device, so as to solve the above technical problems.

[0005] The present invention provides a smoke-generating body adapted to an electromagnetic heating smoking device, wherein the smoke-generating body contains an induction body for induction heating, the induction body is a carbon material, and the unfolded shape of the carbon material is one or more of a film, a sheet or a filament.

[0006] When the above-mentioned smoke-generating body is used in electromagnetic heating smoking articles, it is no longer necessary to transfer heat from the smoking article to the heat conductor, and then transfer the heat to the smoke-generating body. Instead, the smoke-generating body contains an induction body for induction heating, and the smoke-generating body directly generates heat. This method improves the heating efficiency. At the same time, after the heating is completed, the smoke-generating body can be directly withdrawn from the smoking article without any residue, which is convenient to use.

[0007] Optionally, the smoke-generating body includes a wrapping layer for wrapping an internal smoke-generating matrix, the wrapping layer includes an inner layer and an outer layer which are attached to each other face to face, and the carbon material is sandwiched between the inner layer and the outer layer.

[0008] Optionally, the outer layer is high thermal resistance cigarette paper, and the inner layer is low thermal resistance cigarette paper.

[0009] Optionally, the smoke-generating body includes a smoke-generating layer, and the smoke-generating layer includes a first layer and a second layer that are attached to each other face to face, and the carbon material is sandwiched between the first layer and the second layer.

[0010] Optionally, the smoke-generating body is a column, and the column is formed by integrally rolling the smoke-generating layer.

[0011] Optionally, the cross-section of the column is spiral-shaped.

[0012] Optionally, the carbon material is in filament form, and the smoke-generating body further includes a smoke-generating matrix, and the smoke-generating matrix is ​​coated on the filament surface of the carbon material to form a filamentous composite body.

[0013] Optionally, the filamentous complexes are aggregated into bundles.

[0014] Optionally, the carbon material is formed into the film by spraying, coating or electrostatic adsorption.

[0015] Optionally, the carbon material is graphite, graphene or carbon fiber.

[0016] Optionally, the carbon material is in the form of flakes, and the flakes are formed by mixing graphite powder and resin. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram showing the structure of the wrapping layer in the smoke-generating body in a specific embodiment of the present invention;

[0018] Figure 2 A schematic diagram showing the structure of a smoke-generating layer in a smoke-generating body according to another embodiment of the present invention;

[0019] Figure 3 A schematic top view showing a rolled smoke-generating layer in a smoke-generating body according to another embodiment of the present invention Figure 1 ;

[0020] Figure 4 A schematic top view showing a rolled smoke-generating layer in a smoke-generating body according to another embodiment of the present invention Figure 2 ;

[0021] Figure 5 A schematic structural diagram of a cigarette according to a specific embodiment of the present invention is shown. DETAILED DESCRIPTION

[0022] The following specific embodiments illustrate the implementation of the present invention, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this invention are limited to this implementation. On the contrary, the purpose of introducing the invention in conjunction with the implementation is to cover other options or modifications that may extend based on the claims of the present invention. In order to provide a deep understanding of the present invention, the following description will include many specific details. The present invention can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present invention, some specific details will be omitted in the description. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0023] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0024] The terms “first”, “second”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0025] The smoky matrix in the present invention relates to a matrix of volatile compounds that can form an aerosol. The smoky matrix can be adsorbed, covered, poured or loaded onto a carrier or support. If the smoky matrix is ​​solid, it can include one or more of powder, particles, pellets, fragments, strands, strips or sheets in tobacco leaves, tobacco stem segments, reconstituted tobacco, homogenized tobacco, extruded tobacco and expanded tobacco. Further, the smoky matrix can be, for example, a tobacco sheet.

[0026] In order to make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0027] The invention provides a smoke generating body adapted to an electromagnetic heating smoking device, wherein the smoke generating body contains an induction body for induction heating, the induction body is a carbon material, wherein the unfolded shape of the carbon material is one or more of a film, a sheet or a filament.

[0028] The smoke-generating body of the present invention is, for example, a cigarette stick, or the entire smoke-generating substrate. The smoke-generating body of the present invention is suitable for use in electromagnetic heating smoking utensils. Since the smoke-generating body of the present invention contains an induction body, the smoking utensils themselves do not need to be provided with a sensor. The carbon material can be heated by the changing magnetic field in the smoking utensils, thereby heating the smoke-generating body. After the heating is completed, the entire smoke-generating body can be discarded, and no residue will be left in the smoking utensils, which is convenient to use.

[0029] Due to the characteristics of the heat-not-burn smoke-generating body, the atomizer content in the smoke-generating body is relatively high, so the heat-not-burn smoke-generating body has strong hygroscopicity. If the induction body is set to metal, it is easy to cause metal corrosion and deterioration. The present invention uses a carbon material with relatively stable performance, which can avoid corrosion problems and also play a heating role.

[0030] Furthermore, although carbon materials also have magnetic permeability and electrical conductivity, further improvements are still needed to improve their heating performance when used as inductors. The inventors have found through research that setting the carbon material to a structure with a fixed shape, especially forming a film-like, sheet-like or filament-like structure, can help the inductor form a loop in the magnetic field, thereby making the heating effect of the inductor more obvious. On the one hand, the shape of the film-like, sheet-like or filament-like carbon material is controllable, and its loop shape can be determined by its shape in combination with the adjustment of the magnetic field in the smoking device. On the other hand, compared with other shapes, the film-like, sheet-like or filament-like carbon material can achieve a larger contact area with the tobacco matrix in the smoke-generating body, thereby achieving the most efficient heat conduction.

[0031] like Figure 1 As shown, further, as a specific embodiment of the present invention, the above-mentioned smoke-generating body includes a wrapping layer for wrapping the internal smoke-generating matrix, and the wrapping layer includes an inner layer 11 and an outer layer 12, and the inner layer 11 and the outer layer 12 are laminated face to face, and the wrapping layer also has a sandwich structure, that is, a carbon material 13 is sandwiched between the inner layer 11 and the outer layer 12. The inner layer 11, the outer layer 12 and the carbon material 13 are wrapped around the periphery of the smoke-generating matrix as a wrapping layer. The carbon material can be a plurality of bundles of filamentary carbon materials laid in parallel between the inner layer and the outer layer, or it can be a film-like carbon material sandwiched between the inner layer and the outer layer by filling, spraying, coating or electrostatic adsorption. By adding carbon material to the wrapping layer, when the smoke-generating body is placed in an electromagnetic heating smoking device, the carbon material in the wrapping layer generates heat to heat the smoke-generating matrix inside the wrapping layer. In this embodiment, the edges of the inner layer and the outer layer can be sealed by bonding or the like to prevent the carbon material in the middle from escaping. After the wrapping layer is filled with carbon material, the smoking substrate is wrapped and formed. The wrapping layer as a whole can generate heat in the electromagnetic heating smoking device to heat the smoking substrate.

[0032] Preferably, the outer layer 12 is made of high heat resistance cigarette paper, and the inner layer 11 is made of low heat resistance cigarette paper. High heat resistance cigarette paper is, for example, ceramic fiber paper, and low heat resistance cigarette paper is, for example, 32g / m 2 Oil-proof cigarette paper.

[0033] like Figure 2As shown, as another embodiment of the present invention, the smoke-generating matrix in the smoke-generating body is a smoke-generating layer, and the smoke-generating layer includes a first layer 21 and a second layer 22, and the first layer 21 and the second layer 22 are laminated face to face. The smoke-generating layer also has a sandwich structure, that is, a carbon material 23 is sandwiched between the first layer 21 and the second layer 22. The carbon material can be a plurality of bundles of filamentary carbon materials laid in parallel between the first layer and the second layer, or it can also be a film-like carbon material sandwiched between the first layer and the second layer in the form of filling, spraying, coating or electrostatic adsorption. Through at least two surfaces of the first layer 21 and the second layer 22, respectively, the carbon material 23 therein is laminated to the maximum extent, and the heat loss in the air is avoided. In particular, for carbon materials in the form of films or sheets, in addition to being able to conduct heat in the form of surfaces, the smoke-generating layer itself can also receive heat energy from the carbon material to the maximum extent and can conduct surface conduction. In this embodiment, the edges of the first layer and the second layer can be sealed by bonding or the like to prevent the carbon material located in the middle from escaping.

[0034] By sandwiching the carbon material between the smoking substrates, the heating part is in direct contact with the smoking substrate, thereby improving the heating efficiency. The smoking substrate in this embodiment can be, for example, tobacco flakes.

[0035] Furthermore, after the above-mentioned smoking layer is filled with carbon material, the first layer, the second layer and the carbon material interlayer as a whole can continue to be rolled to form a columnar smoking body. Figure 3 The column formed can be a column formed by connecting the smoke-generating layers end to end, the area of ​​the outer peripheral side of the column is equal to the expanded area of ​​the smoke-generating layer, and the middle of the column is hollow. Figure 4 As shown, it can also be a column formed by rolling a smoke-generating layer for several turns. In this embodiment, the cross-section of the column formed by rolling several turns is spiral. Alternatively, it can be a column formed by rolling multiple smoke-generating layers. Rolling multiple turns or multiple smoke-generating layers can increase the content of smoke-generating substrates per unit volume, and the rolled column can form airways between multiple layers to facilitate air circulation, so that a stronger smoke feeling can be obtained when inhaling.

[0036] As another embodiment of the present invention, the carbon material is filamentous, and the smoke-generating body also includes a smoke-generating matrix, which is coated on the filamentous surface. For example, tobacco powder can be coated on the filamentous carbon material by bonding to form a filamentous composite. The filamentous composite can be a stacked whole to form a smoke-generating body, for example, it can be mutually gathered to form a bundle, and the outer layer of cigarette paper wraps the whole to form a columnar smoke-generating body. It can also be that multiple sections of filamentous composites are stacked into a bundle-like smoke-generating body by other forms (such as bundling, etc.). In addition, the filamentous composite can also be surrounded in a circle, connected at the ends to form a loop, and each filamentous composite in the multiple sections of filamentous composite is connected at the ends and then stacked up and down to form a smoke-generating body together, which can further increase the heating efficiency.

[0037] Furthermore, in each of the above embodiments, the film-like carbon material can be formed by spraying, coating or electrostatic adsorption. The flaky carbon material can be made of existing flaky graphite, or the graphite powder can be mixed with the resin to form a flaky graphite material. It is preferred to mix the graphite powder with the high temperature resistant resin and process it into a graphite-containing sheet as a flaky carbon material. The high temperature resistant resin can be, for example, polyimide, polyphenylene ether, etc. In addition, graphene itself is also a flaky carbon material. The filamentous carbon material can be, for example, directly made of carbon fiber, such as carbon tubes prepared by existing methods. Alternatively, the graphite powder can be mixed with the above resin to form a filamentous carbon material containing graphite components.

[0038] like Figure 5 As shown, in the above embodiments, the smoke-generating body can be, for example, a cigarette, which includes a filter 31, a heat-insulating hollow paper tube 33, a tobacco segment 34, cigarette paper 32, and tipping paper 35. The filter 31 and the tobacco segment 34 are separated by a hollow paper tube 33, the outer peripheries of the filter 31 and the hollow paper tube 33 are wrapped with tipping paper 35, and the outer periphery of the tobacco segment 34 is wrapped with cigarette paper 32.

[0039] The filter 31 can be made of acetate fiber material, and the glass transition temperature is 185°C.

[0040] The hollow paper tube 33 is made of a paper tube material that can withstand 240°C, and can be made of coarse fiber paper, such as aluminum foil, acetate fiber and other materials. The outer diameter of the hollow paper tube ranges from 2 mm to 10 mm; the inner diameter ranges from 1 mm to 9 mm, the length ranges from 1 mm to 40 mm, and the wall thickness is 0.4 to 0.6 mm. Preferably, holes can be punched on the hollow paper tube to further enhance the flue gas cooling effect.

[0041] The cigarette paper 32 may adopt the wrapping layer mentioned in the above embodiment. The cigarette paper 32 adopts a three-layer composite form, a graphite layer is coated between two layers of cigarette paper, and both ends of the cigarette paper are sealed.

[0042] The smoke medium section 34, i.e., the smoke-generating substrate, may be made of, but not limited to, shredded tobacco, thin sheets, particles, cigarette sticks, etc., and the smoke-generating temperature is set at 190°C to 220°C.

[0043] The tipping paper 35 may be the tipping paper used for conventional cigarettes, with a burning point of ≥220°C.

[0044] The smoke generating bodies of the above-mentioned embodiments are used in electromagnetically heated smoking devices and have the following beneficial effects:

[0045] 1. Easy to plug and unplug, plug and throw.

[0046] 2. The smoke-generating body has good composite feasibility and the smoke-generating matrix is ​​not easy to fall off.

[0047] 3. The heating area is located on the smoke-generating body, there is no heat transfer link, and the thermal efficiency is high.

[0048] 4. There are no special heating components, the smoking device has a simple structure and is conducive to heat insulation design.

[0049] 5. The smoke-generating body is disposable as a whole, which is safe and hygienic.

[0050] Although the present invention has been illustrated and described with reference to certain preferred embodiments of the present invention, it should be understood by those skilled in the art that the above is a further detailed description of the present invention in conjunction with specific embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. Those skilled in the art may make various changes in form and details, including making several simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A smoke-generating body adapted for electromagnetic heating smoking articles, characterized in that: The electromagnetic heating smoking device is not provided with a sensor, and the smoke-generating body contains an induction body for induction heating, the induction body is a carbon material, and the unfolded shape of the carbon material is one or more of a film, a sheet or a filament. The smoke-generating body includes a wrapping layer for wrapping an internal smoke-generating matrix, the wrapping layer includes an inner layer and an outer layer which are bonded to each other face to face, the carbon material is sandwiched between the inner layer and the outer layer, the inner layer, the outer layer and the carbon material as a whole are wrapped around the periphery of the smoke-generating matrix as the wrapping layer, the outer layer is a high thermal resistance cigarette paper, the inner layer is a low thermal resistance cigarette paper, the high thermal resistance cigarette paper is ceramic fiber paper, and the low thermal resistance cigarette paper is anti-oil seepage cigarette paper.

2. The smoke-generating body adapted for electromagnetic heating smoking articles according to claim 1, characterized in that: The smoking substrate is a smoking layer, and the smoking layer comprises a first layer and a second layer which are attached to each other face to face, and the carbon material is sandwiched between the first layer and the second layer.

3. The smoke-generating body adapted for electromagnetic heating smoking articles according to claim 2, characterized in that: The smoke-generating body is a column, and the column is formed by integrally rolling the smoke-generating layer.

4. The smoke-generating body adapted for electromagnetic heating smoking articles according to claim 3, characterized in that: The cross section of the column is spiral-shaped.

5. The smoke-generating body adapted for electromagnetic heating smoking articles according to any one of claims 1 to 4, characterized in that: The carbon material is formed into the film shape by coating.

6. The smoke-generating body adapted for electromagnetic heating smoking articles according to any one of claims 1 to 4, characterized in that: The carbon material is formed into the film shape by spraying.

7. The smoke-generating body adapted for electromagnetic heating smoking articles according to any one of claims 1 to 4, characterized in that: The carbon material is formed into the film shape by electrostatic adsorption.

8. The smoke-generating body adapted for electromagnetic heating smoking articles according to any one of claims 1 to 4, characterized in that: The carbon material is graphite, graphene or carbon fiber.

9. The smoke-generating body adapted for electromagnetic heating smoking articles according to claim 1, characterized in that: The carbon material is in the form of flakes, which are formed by mixing graphite powder and resin.

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