Rod-shaped smoking article and electrically heated smoking system including same

Abstract

An electrically heated smoking system comprising a rod-shaped smoking article and an auto-ignition device wherein the rod-shaped smoking article comprises a carbon heat source having a metal heat source.

Description

Technical Field

[0001] The present invention relates to a stick-type smoking article and an electrically heated smoking system comprising the same. Background Art

[0002] Generally speaking, tobacco refers to a perennial plant of the dicotyledonous Solanaceae family, and more recently, it is also used as a general term for smoking products that wrap tobacco leaves in cigarette paper and form a filter on one side. There are many such products in the world, and their shapes or forms are also varied.

[0003] Among them, in order to make up for the shortcomings of burning cigarettes such as cigarettes, cigars and pipe tobacco, research on the use of electrically heated smoking products as substitutes is being actively carried out. Specifically, the aerosol-generating substances in the heated smoking products are heated by a heater or ultrasonic vibration, thereby generating mainstream smoke containing aerosols, thereby satisfying the smoking desire of smokers while minimizing the emission of components in cigarettes, so that such products are forming a new market to replace ordinary burning cigarettes.

[0004] However, the electric heating smoking articles in the prior art require a high power in order for the heater to heat the tobacco. Specifically, when preheating the electric heating smoking articles, the battery pack (battery crate) is used in a manner of more than 1C, and a large current of more than 1A is consumed when the smoking action is performed. This will damage the battery life. In addition, the electric heating smoking articles in the prior art use a temperature profile to control the taste of the tobacco, but this will cause a serious problem of physical property changes due to the heating of the internal medium.

[0005] Therefore, there is a need to develop an electrically heated smoking system which has lower power consumption than conventional electrically heated smoking articles, can reduce physical changes in smoking articles, and can adjust the taste of cigarettes. Summary of the invention

[0006] Problem that the invention aims to solve

[0007] In order to overcome the problems and / or limitations in the prior art as described above, the object of the present invention is to provide a rod-shaped smoking article comprising a carbon heat source having a metal heat source, and to provide an electrically heated smoking system that adjusts the taste of the cigarette only through an airflow channel control portion when the carbon heat source is ignited.

[0008] The technical problems to be solved by this embodiment are not limited to the above-mentioned topics, and other topics not mentioned will be clearly understood by ordinary technicians in this field through the following description.

[0009] Means used to solve problems

[0010] According to one embodiment of the present invention, there is provided a rod-shaped smoking article comprising a carbon heat source.

[0011] The carbon heat source includes a metal heat source.

[0012] According to one aspect, an electrically heated smoking system comprising a rod-shaped smoking article and an automatic ignition device is provided.

[0013] The rod-shaped smoking article comprises a carbon heat source,

[0014] The carbon heat source includes a metal heat source,

[0015] The automatic ignition device includes a rod insertion portion into which the rod-shaped smoking article is inserted, and the rod insertion portion is capable of igniting a carbon heat source.

[0016] According to another aspect, a method for controlling an airflow channel of an electrically heated smoking system including a rod-shaped smoking article and an automatic ignition device is provided, comprising:

[0017] If the terminal of the rod-shaped smoking article is in contact with the terminal of the automatic ignition device, a step C1 of applying current to a metal heat source;

[0018] a step C2 of controlling the current flowing to the metal heat source based on the temperature of the carbon heat source; and

[0019] Step C3 of blocking the current flowing to the metal heat source and operating the air flow channel control unit.

[0020] Effects of the Invention

[0021] According to the present invention, the current flowing to the metal heat source is blocked after the carbon heat source is ignited, so that the power consumption is lower than that of the electric heating smoking article in the prior art. Accordingly, the maximum number of puffs per charge can be increased, and the battery size can be further reduced and manufactured. The reduction in battery size is not only conducive to the miniaturization of the device, but also has the advantage of simplifying the circuit structure.

[0022] In addition, according to the present invention, after the smoker holds the smoking article in his mouth and inhales (pumping action), the inhalation resistance will be reduced, and at this time, the reduced pressure drop can be compensated by the airflow channel control unit to adjust the taste of the cigarette, thereby providing the smoker with a satisfactory smoking feeling.

[0023] The effects of the present invention are not limited to the effects described above, and should be understood to include all effects that can be inferred from the inventive constitutions described in the detailed description of the present invention or the claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1is a diagram showing an electrically heated smoking system 100 including a rod-shaped smoking article 101 having a carbon heat source and an automatic ignition device 102 .

[0025] Figure 2 1 is a diagram showing a side surface of a rod-shaped smoking article 101 having a carbon heat source and a cross-sectional view of a rod insertion portion 103 in an automatic ignition device that contacts the tip of the rod-shaped smoking article.

[0026] Figure 3 is a diagram showing a rod-shaped smoking article 101 having a carbon heat source. DETAILED DESCRIPTION

[0027] Below, the exemplary embodiments will be described in detail with reference to the accompanying drawings. However, various changes can be made to the exemplary embodiments. In this article, the present disclosure is not limited to the exemplary embodiments. The exemplary embodiments should be understood to include all changes made within the concept and technical scope of the present disclosure, and their equivalents and even their substitutes.

[0028] The terms used in the embodiments are only used to illustrate specific example embodiments and are not used to limit the example embodiments. In the absence of special instructions in the content, the singular expression is intended to also include the plural expression. In this specification, the terms "including" or "having" are used to express the existence of the stated features, numbers, steps, actions, constituent elements, parts or these combinations, but do not exclude the possibility of the existence or additional existence of one or more other features, numbers, steps, actions, constituent elements, parts or these combinations.

[0029] In the absence of other definitions, all terms, including technical or scientific terms used herein, have the common meanings understood by ordinary technicians in the field to which the examples belong. Commonly used terms as defined in dictionaries should be understood as the meanings in the relevant technical content, and should not be interpreted as idealized or overly formalized meanings if they are not clearly defined in this specification.

[0030] In the process of describing the examples with reference to the drawings, the same components are marked with the same reference numerals and repeated descriptions are omitted. In the process of describing the example embodiments, when it is determined that the detailed description of the relevant well-known structure or function will cause unnecessary confusion to the present disclosure, its detailed description is omitted.

[0031] Also, when describing components of the exemplary embodiments, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are only used to distinguish one component from other components and are not used to limit the nature, order or sequence of the corresponding components.

[0032] When a constituent element has a common function with a constituent element of an exemplary embodiment, the same name is used to describe it in other embodiments. Without mentioning a counterexample, the configuration disclosed in an exemplary embodiment can be applied to other embodiments, and the specific description of the repeated configuration can be omitted.

[0033] In this article, "smoking articles" may refer to articles that can generate aerosols, such as cigarettes (cigarettes), cigars, etc. Smoking articles may include aerosol-generating substances or aerosol-forming substrates. In addition, smoking articles may include solid substances based on tobacco raw materials such as tobacco leaves, tobacco shreds and reconstituted tobacco. Smoking articles may include volatile compounds.

[0034] In addition, in this document, "upstream" or "upstream direction" refers to the direction away from the user's mouth; "downstream" or "downstream direction" refers to the direction close to the user's mouth. Figure 3 In the rod-shaped smoking article, the tobacco medium portion 202 is located upstream or in the upstream direction of the filter portion 203.

[0035] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0036] Figure 1 1 is a diagram showing an electrically heated smoking system 100 including a rod-shaped smoking article 101 having a carbon heat source and an automatic ignition device 102. Figure 1 , the automatic ignition device 102 according to an embodiment of the present invention may include a rod insertion portion 103, a control portion 104, a battery 105 and an airflow channel control portion 106. Figure 2 and Figure 3 , the rod-shaped smoking article 101 with a carbon heat source may include a carbon heat source 201, a tobacco medium portion 202, a filter portion 203, and a metal heat source 204. However, modifications and additions may be made to the above configuration, and the embodiment is not limited thereto.

[0037] According to an embodiment of the present invention, a rod-shaped smoking article 101 may be provided, and the rod-shaped smoking article 101 may include a carbon heat source 201 .

[0038] In the present invention, the temperature of the carbon heat source 201 should not be higher than the degree to which the tobacco medium portion 202 burns or thermally degrades during use of the rod-shaped smoking article 101. However, the combustion temperature of the carbon heat source 201 should generate sufficient heat to release sufficient volatile compounds from the tobacco medium portion 202. In particular, the combustion temperature is high enough to generate an allowable aerosol in the initial smoking puff. In order to prevent a delay between the ignition of the carbon heat source 201 and the generation of the aerosol, the carbon heat source 201 must quickly reach an appropriate combustion temperature after being ignited.

[0039] In carbon heat source 201, the carbon content is at least 35% by weight of the dry carbon heat source, more preferably at least about 40% by weight, and most preferably at least about 45% by weight.

[0040] The carbon heat source may be formed of one or more suitable carbon-containing materials, and may contain additives to improve the properties of the carbon heat source 201. For example, as an additive that helps ignite the carbon heat source, it may be perchlorate, chlorate, nitrate, peroxide, permanganate, zirconium or a combination thereof, and as an additive that helps the carbon heat source burn, it may include potassium or potassium salts such as potassium citrate, etc. The above additives are only examples, and the embodiments are not limited to the listed types.

[0041] In addition, the carbon heat source 201 may further include at least one ignition aid.

[0042] In one embodiment of the present invention, the carbon heat source 201 may include a metal heat source 204. The metal heat source 204 may include a low-resistance metal. As an example, the resistance value of the metal heat source 204 may be greater than 0Ω and less than 0.7Ω. The resistance value of the metal heat source 204 may be set to various values ​​according to the constituent material, length, width, thickness, etc. of the metal heat source, and non-limiting examples of metal types having the above-mentioned low-resistance characteristics include gold, silver, copper, aluminum, iron, etc.

[0043] Meanwhile, in the present invention, the metal heat source 204 includes: a (+) terminal located at the center thereof; and a (-) terminal (circular; GND) located at the periphery of the (+) terminal.

[0044] Meanwhile, the rod-shaped smoking article 101 according to an embodiment of the present invention may include a tobacco medium portion 202, a filter portion 203 and a packaging element.

[0045] The tobacco medium portion 202 generally refers to tobacco materials containing nicotine such as tobacco leaves, and may also include excipients. The excipients are substances that may be included in the tobacco medium portion 202, and non-limiting examples thereof include pH regulators, adhesives, aerosol forming agents, and other additives other than tobacco substances.

[0046] The tobacco material may be tobacco leaf fragments, tobacco stems, tobacco dust generated during tobacco processing, and / or tobacco leaf strips. In addition, the tobacco leaf may be at least one selected from traditional tobacco leaves such as flue-cured tobacco leaves, burley tobacco, fire-cured tobacco leaves, sun-cured tobacco leaves, and air-cured tobacco leaves, but the embodiment is not limited thereto.

[0047] When a pH adjuster is used, the type of the pH adjuster used is generally not limited as long as it is a substance known in the art, and for example, may include a basic inorganic salt.

[0048] In addition, examples of the adhesive include materials that can well bond the crushed tobacco material to increase the hardness. Any material known in the art can be used without restriction, for example, it can include at least one selected from the group consisting of alginate; cellulose such as methyl cellulose, ethyl cellulose, ethyl hydroxyethyl cellulose, carboxymethyl cellulose; dextran; gum; gum derivatives such as hydroxyethyl guar gum, hydroxypropyl guar gum, hydroxyethyl locust bean gum, hydroxypropyl locust bean gum; pectin such as fruit pectin, citrus pectin, tobacco pectin; modified starch such as starch derivatives; pullulan; and konjac flour.

[0049] In addition, as an example, the aerosol former refers to a substance that is volatilized when heated to a temperature above a specific volatilization temperature, thereby delivering nicotine and the like into an aerosol. Specific types include at least one selected from the group consisting of monohydric alcohols such as menthol; polyhydric alcohols such as triethylene glycol, tetraethylene glycol, 1,3-butylene glycol, erythritol, propylene glycol, and glycerol; polyhydric alcohol esters such as monoacetin, diacetin, or triacetin; aliphatic esters of monocarboxylic acids, dicarboxylic acids, or polycarboxylic acids such as diethyl suberate, dimethyl dodecanedioate, dimethyl tetradecenedioate, ethyl laurate, lauryl acetate, and triethyl citrate; benzyl benzoate; benzyl phenylacetate; ethyl vanillate; lauric acid; myristic acid; propylene carbonate; and tributyrin, but the implementation method is not limited to this.

[0050] Further, other additives may also include at least one selected from the group consisting of flavoring agents, wetting agents, plasticizers, tobacco and non-tobacco fibers, aqueous and non-aqueous solvents, and combinations thereof, but the embodiment is not limited thereto.

[0051] In addition, the flavoring agent can be the preparation that gives taste and / or smell to the aerosol produced to tobacco material.Can comprise liquorice, sucrose, fructose syrup, isosweet, raw cocoa, lavender, cinnamon, cardamom, celery, fenugreek, bitter fragrant tree, sandalwood, bergamot, geranium, honey essence, rose oil, vanilla, lemon oil, orange oil, peppermint oil, caraway, brandy, jasmine, cooked cocoa, menthol, cassia bark, ylang-ylang, salvia miltiorrhiza, green mint, ginger, coriander or coffee etc., but embodiment is not limited to this.Thus, can supplement the tobacco flavor that is lacking, cover bad fragrance and taste, give the distinctive fragrance of tobacco leaf.

[0052] The filter part 203 may be a cellulose acetate filter, a paper filter, or a filter made of a polymer material, but is not limited thereto.

[0053] In addition, the filter unit 203 may also be subjected to a fragrance enhancement treatment using the fragrance agent.

[0054] The packaging member may be made of common filter wrapping paper, and one or more perforations are selectively formed along the circumferential direction on the tipping paper that combines the tobacco medium portion 202 and the filter, through which external air is introduced or internal gas is discharged to the outside. In this way, the air dilution rate of the cigarette can be achieved and the transfer amount of mainstream smoke components can be controlled.

[0055] According to one embodiment of the present invention, there may be provided an electrically heated smoking system 100 including a rod-shaped smoking article 101 having a carbon heat source 201 and an automatic ignition device 102. The carbon heat source 201 may include a metal heat source 204. The automatic ignition device 102 may include a rod insertion portion 103, into which the rod-shaped smoking article 101 is inserted, and the rod insertion portion 103 is capable of igniting the carbon heat source 201.

[0056] In one embodiment, the automatic ignition device 102 may include an air flow channel control portion 106 .

[0057] The airflow channel control unit 106 can adjust the amount of air flowing to the airflow channel based on the inhalation resistance during smoking. Specifically, as the user repeatedly draws, the inhalation resistance (pressure drop) in the rod-shaped smoking article 101 may decrease. The airflow channel control unit 106 increases the inhalation resistance of the automatic ignition device 102 itself by sensing the reduction of the inhalation resistance. That is, the present invention can provide uniform inhalation resistance and cigarette taste only by using the airflow channel control unit.

[0058] As an example, the electrically heated smoking system 100 may include a sensor for sensing the inhalation resistance in the rod-shaped smoking article 101. After the user takes a puff, the inhalation resistance detection sensor senses the inhalation resistance of the rod-shaped smoking article 101, thereby sending a pressure drop signal. The sensing signal of the inhalation resistance detection sensor can be transmitted to the airflow channel control unit 106. The airflow channel control unit 106 can control the airflow to increase the pressure drop of the device 102 itself. However, it is not limited to the above example.

[0059] In the electrically heated smoking system 100 according to an embodiment of the present invention, the rod insertion portion 103 may include a terminal of an automatic ignition device. The terminal of the automatic ignition device may include: a (+) terminal located at the center; and a (-) terminal located at the periphery of the (+) terminal. The metal heat source 204 of the rod-shaped smoking article 101 may include: a (+) terminal located at the center; and a (-) terminal located at the periphery of the (+) terminal. If the rod-shaped smoking article 101 is accommodated in the rod insertion portion 103, the (+) terminal and the (-) terminal of the rod-shaped smoking article 101 are in contact with the (+) terminal and the (-) terminal of the automatic ignition device 102, respectively, and current may flow to the metal heat source 204. That is, the carbon heat source 201 may be heated by the power supplied by the battery 105. The heated carbon heat source 201 may cause the tobacco medium portion 202 to generate aerosol.

[0060] The automatic ignition device 102 can be manufactured to have various structures that allow external air to flow in or internal gas to flow out even in a state where the rod-shaped smoking article 101 is accommodated, and is not limited to the drawings.

[0061] In one embodiment, the automatic ignition device 102 may include a control unit 104. The control unit 104 controls the operation of the electrically heated smoking system 100 as a whole.

[0062] First, the power supplied to the rod insertion portion 103 can be controlled. Specifically, the supply of current can be controlled by identifying the contact state between the terminal of the rod-shaped smoking article and the terminal of the automatic ignition device. The metal heat source 204 in the rod-shaped smoking article 101 can heat the carbon heat source 201. At the same time, when the temperature of the carbon heat source 201 is increased and preheating is completed and ignited, the control unit 104 can block the current flowing to the metal heat source 204. Accordingly, the size of the battery can be reduced by reducing power consumption, which is conducive to the miniaturization of the device and can also simplify the circuit structure. When the current reaches a first value, the control unit 104 can control the airflow channel control unit 106 to operate.

[0063] The control unit 104 can control not only the rod insertion unit 103 and the airflow channel control unit 106, but also the actions of other components included in the automatic ignition device 102. The control unit 104 can also confirm the state of each component of the automatic ignition device 102 and determine whether the device is in an actionable state. However, the present embodiment is not limited thereto.

[0064] The battery 105 of the present invention can supply the power required for the electric heating type smoking system 100 to operate. For example, the battery 105 can supply power so that the rod insertion part 103 can be heated, and can supply the power required for the control part 104 to operate. In addition, the battery 105 can provide the power required for the display, sensor, motor, etc. provided in the electric heating type smoking system 100 to operate. However, the present embodiment is not limited to this.

[0065] According to another embodiment of the present invention, there is provided an airflow channel control method of the electric heating smoking system 100. Specifically, the airflow channel control method comprises: if the terminal of the rod-shaped smoking article contacts the terminal of the automatic ignition device, a step C1 of applying current to the metal heat source 204; a step C2 of controlling the current flowing to the metal heat source 204 based on the temperature of the carbon heat source 201; and a step C3 of blocking the current and causing the airflow channel control unit 106 to operate.

[0066] In the step C2, if the carbon heat source 201 is ignited, the current flowing to the metal heat source 204 can be blocked.

[0067] In step C3 , the airflow channel control unit 106 may control the amount of air flowing into the airflow channel based on the inhalation resistance in the rod-shaped smoking article 101 .

[0068] However, this embodiment is not limited to this. Figure 1 In addition to the components shown, the automatic ignition device 102 may also include other common components. For example, the automatic ignition device 102 may include a display capable of outputting visual information and / or a motor for outputting tactile information, and may also include at least one of a pressure drop detection sensor and a rod-shaped smoking article insertion recognition sensor. In addition, although Figures 1 to 3 Not shown in the figure, the automatic ignition device 102 can also form a system with a separate bracket. For example, the bracket can be used in the charging of the battery 105 of the automatic ignition device 102.

[0069] As described above, although the embodiments are described by limited drawings, a person skilled in the art with ordinary knowledge can apply various technical modifications and variations based on these embodiments. For example, the described techniques are performed in a different order from the described methods, and / or the constituent elements in the described systems, structures, devices, circuits, etc. are combined or combined in a different form from the described methods, or replaced or substituted by other constituent elements or equivalents, and appropriate results can also be achieved.

[0070] Thus, other implementations, other embodiments, and equivalents to the claims should be construed to be included within the claims.

Claims

1. A rod-shaped smoking article comprising a carbon heat source, characterized in that: The carbon heat source includes a metal heat source.

2. The rod-shaped smoking article according to claim 1, characterized in that The metal heat source includes a (+) terminal located at a central portion of the metal heat source and a (-) terminal located at an outer periphery of the (+) terminal.

3. The rod-shaped smoking article according to claim 1, characterized in that The metal heat source is a metal with a resistance greater than 0Ω and less than 0.7Ω.

4. The rod-shaped smoking article according to claim 1, characterized in that: The metal heat source includes at least one selected from the group consisting of gold, silver, copper, aluminum and iron.

5. An electrically heated smoking system, comprising a rod-shaped smoking article and an automatic ignition device, characterized in that: The rod-shaped smoking article comprises a carbon heat source, The carbon heat source includes a metal heat source, The automatic ignition device includes a rod insertion portion into which the rod-shaped smoking article is inserted, and the rod insertion portion is capable of igniting the carbon heat source.

6. The electrically heated smoking system according to claim 5, characterized in that: The automatic ignition device includes an airflow channel control portion that adjusts an amount of air flowing into an airflow channel based on an inhalation resistance.

7. The electrically heated smoking system according to claim 5, characterized in that: The metal heat source of the rod-shaped smoking article includes a (+) terminal located at the center of the metal heat source and a (-) terminal located at the periphery of the (+) terminal. The rod insertion portion includes an automatic ignition terminal that contacts the (+) terminal and the (-) terminal.

8. The electrically heated smoking system according to claim 5, characterized in that: The automatic ignition device comprises a control unit, The control section supplies current to ignite the carbon heat source only when preheating the rod-shaped smoking article, and blocks the current and operates the airflow channel control section after the carbon heat source is ignited.

9. The electrically heated smoking system according to claim 5, characterized in that: The automatic ignition device comprises a battery.

10. An airflow channel control method, used to control the electrically heated smoking system according to any one of claims 5 to 9, characterized in that: include: If the terminal of the rod-shaped smoking article is in contact with the terminal of the automatic ignition device, a step (C1) of applying current to the metal heat source; a step (C2) of controlling the current flowing to the metal heat source based on the temperature of the carbon heat source; as well as The step (C3) of blocking the current flowing to the metal heat source and operating the air flow channel control unit.

11. The airflow channel control method according to claim 10, characterized in that: In the step (C2), if the carbon heat source is ignited, the control unit blocks the current flowing to the metal heat source.

12. The airflow channel control method according to claim 10, characterized in that: In the step (C3), the airflow channel control unit controls the amount of air flowing into the airflow channel based on the inhalation resistance in the rod-shaped smoking article.

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