Patent Application
20240000156
The invention relates to the field of tobacco products, in particular to a heating tobacco apparatus and an aerosol generation method therefor.
New tobacco products are emerging strategic tobacco products, and heated tobacco products are one of the products with great development prospects in this field. The working principle is that tobacco materials absorb heat from a heat source via heat transfer so as to produce aerosols. Using air as a carrier, the aerosols generated after the tobacco substrate is heated are delivered to the oral cavity for consumers to consume after certain modulation (such as cooling, flavoring, filtering, etc.). The heating program of the heat source has a great influence on the sensory quality of the heated tobacco products, which is able to control the release of key substances of the smoke by affecting the temperature distribution of the tobacco material of the heated cigarette.
At present, the heating program adopted by common heated cigarettes is a three-stage temperature control curve, showing a “high-low-high” temperature change trend (patent number: CN201380037681), and the maximum heating temperature of a smoking set is below 400° C., although it can be realized that the smoking set is heated without burning and aerosols are generated, the characteristic substances of tobacco materials are not completely released.
In order to overcome the existing defects, the present invention provides a tobacco heating apparatus and an aerosol generation method therefor.
A tobacco heating apparatus and an aerosol generation method therefor are provided. The tobacco heating apparatus includes a smoking set and a tobacco product. The tobacco product can be arranged in the smoking set. The smoking set heats the tobacco product by controlling the smoking set on the basis of an ignition point parameter of the tobacco material.
Optionally, the smoking set comprises a power module, a control module, and a cigarette accommodating cavity, wherein the power module is communicated with the control module, and the control module is communicated with the heating element coaxially arranged in the cigarette accommodating cavity.
Wherein, the tobacco product comprises a tobacco section and a functional mouthpiece section, wherein a smoke extraction section is also arranged between the tobacco section and the functional mouthpiece section, and the tobacco section, the functional mouthpiece section and the smoke extraction section are wrapped and connected together by an external wrapping material.
Wherein, the smoke extraction section is a column containing a cavity structure, and at least one sidewall through-hole communicated with the cavity structure is opened on a side wall of the column, a coaxial through-hole is formed on the external wrapping material in a position corresponding to the sidewall through-hole.
Wherein, a sealing member is provided in the cigarette accommodating cavity, when the tobacco product is inserted into the cigarette accommodating cavity, the sealing member seals the tobacco section of the tobacco product, so as to ensure that the external airflow cannot flow through the tobacco section; the heating element is close to the tobacco section.
Optionally, the heating element is one or more of cup-shaped, sheet-shaped or needle-shaped, and the cup-shaped heating element is arranged on the inner wall of the cigarette accommodating cavity, and sheet-shaped or needle-shaped heating elements is arranged on the central axis of the cigarette accommodating cavity.
The aerosol generation method comprises the following steps:
Optionally, the smoking set may further comprises an oxygen content detection sensor, the control module is communicated with the oxygen content detection sensor, and the oxygen content detection sensor is communicated with the cigarette accommodating cavity through a micro air passage (15).
Optionally, the variation curve of the oxygen concentration over time (or with the times of suction) of the tobacco section can be obtained in real time by the oxygen content detection sensor.
Preferably, the heating element may be a circumferential heating cup, a central heating sheet, a central heating needle, an electromagnetic heating member, a microwave heating member, and the like.
The present invention provides a heating tobacco apparatus and an aerosol generation method therefor. First, the heating cigarette must ensure that the tobacco material does not burn during the process of using, and secondly, the more complete release of the aroma substances from the tobacco material, the better sensory quality thereof. The release amount of aroma substances is closely related to the heating temperature. By to obtaining the variation curve of the ignition point of the tobacco material and setting the heating program of the smoking set closely following the variation curve, it is possible to ensure that the tobacco material does not burn, and at the same time to ensure the maximum release of the aroma substances of the tobacco material.
The above and other aspects and features of the present invention will be apparent from the following description of the embodiments with reference to the accompanying drawings, wherein:
A tobacco heating apparatus and an aerosol generation method therefor provided by the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
The smoking set 1 includes a power module 11, a control module 12, and a cigarette accommodating cavity 14, wherein the power module 11 is communicated with the control module 12, and the control module 12 is communicated with a heating element coaxially arranged in the cigarette accommodating cavity 14.
The tobacco product 2 includes a tobacco section 21 and a functional mouthpiece section 22, wherein a smoke extraction section 23 is also arranged between the tobacco section 21 and the functional mouthpiece section 22, and the tobacco section 21, the functional mouthpiece section 22 and the smoke extraction sections 23 are wrapped and connected together through an external wrapping material.
The smoke extraction section 23 is a column containing a cavity structure, and at least one sidewall through-hole 24 communicated with the cavity structure is opened on the side wall of the column, and a coaxial through-hole is formed on the external wrapping material in a position corresponding to the sidewall through-hole 24.
A sealing member 141 is arranged in the cigarette accommodating cavity 14, and when the tobacco product 2 is inserted into the cigarette accommodating cavity 14, the sealing member 141 seals the tobacco section 21 of the tobacco product 2, so as to ensure that the external air flow cannot flow through the tobacco section 21. The heating element is in close proximity to the tobacco section 21.
The aerosol generation method comprises the following steps:
The smoking set 1 may further include an oxygen content detection sensor 13, the control module 12 is communicated with the oxygen content detection sensor 13, and the oxygen content detection sensor 13 is communicated with the cigarette accommodating cavity 14 through a micro air passage 15.
The variation curve of the oxygen concentration over time (or with the times of suction) of the tobacco section can be obtained by the oxygen content detection sensor 13 in real time.
As shown in
The heating program (temperature raising program) of the heated tobacco product is set closely following the variation curve of the ignition point of the tobacco material, and the ordinate of a point corresponding to the abscissa of the heating program is slightly lower than the ordinate corresponding to the point with the same abscissa on the variation curve of the ignition point of the tobacco material, preferably lower by 5° C.
Table 1 shows the comparison of the release amount of key substances from the smoke, and Table 2 shows the comparison of residuals of key substances in tobacco sections after suction.
Through the CHI suction test, the release amount of key substances (TPM, glycerin, nicotine, moisture) in the smoke particulate matter under different heating curves is compared; the particulate matter is collected by using the Cambridge filter, the TPM is weighted after the suction is completed, and smoke substances (glycerin, nicotine, moisture) in the particulate matter is detected by using gas chromatography. Wherein, the extractant of glycerin is methanol, and the extractant of water and nicotine is isopropanol.
Table 1 and Table 2 show that, in the present invention, by obtaining a variation curve of the ignition point of the tobacco materials, and setting a heating program for the smoking set closely following the variation curve of the ignition point, the release amount of key substances from the tobacco section during the heating program is about 20% higher than that released from the tobacco section in a traditional “high-low-high” temperature raising and heating program. The key substances are released more sufficiently, and there is little residue of key substances in the tobacco section after smoking.
Finally, it should be noted that the above embodiments are only used to describe the technical solutions of the present invention rather than limit the technical methods thereof. The present invention can be extended to other modifications, changes, applications and embodiments in application, and therefore it is considered that all such modifications, changes, applications, and embodiments are all within the spirit and teaching scope of the present invention.
| Number | Date | Country | Kind |
|---|---|---|---|
| 202011409679.1 | Dec 2020 | CN | national |
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/CN2021/087618 | 4/16/2021 | WO |
