Heating device for low-temperature cigarette

Abstract

The invention discloses a heating device for a low-temperature cigarette. The heating device comprises a base, a heating part and a barrel body with openings in the two ends. The base is used for supporting a low-temperature cigarette, separating flame from the low-temperature cigarette and transferring heat from the flame to the heating part; a cavity used for containing tobacco is formed in theheating part, the bottom end of the heating part is connected with the base, and the heating part is used for being inserted into the low-temperature cigarette so as to heat the low-temperature cigarette. The barrel body is arranged outside the heating part in a sleeving mode at intervals, an interlayer used for fixing the low-temperature cigarette is formed between the inner wall of the barrel body and the outer wall of the heating part, and the bottom end of the barrel body is connected with the base. According to the invention, the contact area with the low-temperature cigarette can be increased, so that the heat can be transferred to the tobacco more uniformly, the temperature uniformity of the low-temperature cigarette is improved, the average temperature is high, and the heating effect can be improved.

Description

technical field [0001] The invention relates to a heating device for low-temperature cigarettes, belonging to the technical field of low-temperature cigarettes. Background technique [0002] Low-temperature cigarettes, also known as heat-not-burn tobacco products, are different from traditional cigarettes that burn tobacco itself to generate smoke. The tobacco in low-temperature cigarettes does not burn itself, but is heated by a heater, so that the nicotine (nicotine) in it is released in the form of smoke for people to inhale, resulting in physiological pleasure. Therefore, the harm of low-temperature cigarettes to the human body is much lower than that of traditional direct-burning cigarettes. [0003] At present, the heating method of low-temperature cigarettes is mostly electric heating. The structure of the heating element is mainly needle (rod) shape and sheet shape, and the resistance wire or sheet is directly buried inside the heating needle and the heating sheet. ...

AI Technical Summary

Problems solved by technology

However, the electric heating method has the following disadvantages: due to the low energy density of the lithium battery, usually only one charge can guarantee the smoking time of one cigarette, and the continuous smoking performance is poor; at the same time, the heating element used in the electric heating method is usually Heating rods or heating sheets with high thermal conductivity, and because the thermal conductivity of tobacco is very low, the temperature uniformity inside the cigarette is poor, often the temperature at the center has exceeded 350°C and the temperature at the periphery has not yet reached 220°C, and it is also Not conducive to reducing the release of tobacco harmful substances

[0004] Although relevant technical personnel have proposed a scheme to heat smoke liquid or cured shredded tobacco with the heat released by fuel combustion, for example, Chinese patent application CN201420057088.6 discloses a lighter-type fuel-heated cigarette, and Chinese patent application CN201621111124.8 discloses a A gas-heated smoking product. The above two patents both use the combustion of liquid fuels such as butane to indirectly heat low-temperature cigarettes. However, these heating components based on fuel combustion still adopt a structure similar to that of electric heating without making Larger changes have greatly affected the heating efficiency, the speed of smoking during use, and the uniformity of cigarette baking, which also indirectly affects the user's smoking experience and the production of harmful substances

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