Segmental heating device of heated-incombustible cigarette

Abstract

The invention discloses a segmental heating device of a heated-incombustible cigarette. The heating device comprises a heater and a control circuit, wherein the heater comprises plural heating units and a heat conduction pipe; the heating units comprise annular electric heating units; the heating units comprise heating rings, and the electric heating elements sleeve the peripheries of the heatingrings; and the plural heating rings firmly sleeve the outside of the heat conduction pipe and are distributed in a separated mode in an axial direction of the heat conduction pipe. According to the segmental heating device provided by the invention, tobacco shreds can be uniformly heated by virtue of the heating rings, and the circumstance that the tobacco shreds are subjected to spontaneous combustion due to local high temperature can be prevented. The heat conduction pipe is arranged between the heating rings and the tobacco shreds; and the tobacco shreds, which are stopped from being heatedin a previous stage, can acquire partial heat energy conducted from the heat conduction pipe when heating is conducted in a next stage, so that the circumstance the smoke, which is generated from thermal cracking in a heating stage, is excessively absorbed by low-temperature heated tobacco shreds since the part of the tobacco shreds are at a too low temperature can be prevented.

Description

[technical field] [0001] The invention relates to an electronic cigarette device, in particular to a segmented heating device for heating non-burning cigarettes. [Background technique] [0002] Tobacco smoke contains at least three chemicals: tar, nicotine, and carbon monoxide. Tar is a mixture of several substances that condenses in the lungs into a sticky carcinogen. The boiling point of nicotine is 247°C. Nicotine is an addictive drug that is absorbed by the lungs and mainly affects the nervous system. Carbon monoxide is produced by the incomplete combustion of shredded tobacco, which can reduce the ability of red blood cells to transport oxygen to the whole body, and has great harm to the human body. [0003] During the smoking process, except for the outer part of the cigarette, it is basically burned under the condition of insufficient oxygen supply. Carcinogens such as tobacco tar are mostly generated at 500-900°C. into the smoker's respiratory tract, causing harm t...

AI Technical Summary

Problems solved by technology

[0005] The disadvantage of this invention is that the tobacco of the cigarette is directly heated by an annular electric heating element, the tobacco is heated unevenly, and the shredded tobacco will have a local high temperature, which is very easy to cause spontaneous combustion at the local high temperature when smoking; in addition, the tobacco of the cigarette is heated in sections, The tobacco segment that stops heating may cause the smoke generated by thermal cracking of the heating segment due to the low temperature, which will be excessively absorbed by the low-temperature heated tobacco cut, reducing the output of smoke

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