Internal heating type electronic cigarette heating rod with various TCR resistor partition combinations

Abstract

The utility model discloses an internal heating type electronic cigarette heating rod with various TCR resistor partition combinations. A cylindrical surface of a base rod is provided with a glass isolation layer, an electric heating layer and a glass protection layer, the electric heating layer comprises a first film-shaped resistance layer and a second film-shaped resistance layer which are electrically insulated with each other, the upper ends of the first resistance layer and the second resistance layer are electrically connected with each other, and the upper ends of the first resistance layer and the second resistance layer are electrically connected with each other, an extraction electrode is arranged at the lower end of each of the first resistance layer and the second resistance layer; each of the first resistance layer and the second resistance layer comprises a resistance layer body; the resistive layer body is divided into a plurality of transverse strips which are connected in series by transverse lines; the resistive layer body consists of an upper resistive layer and a lower resistive layer which are connected with each other, and the lower end of the upper resistive layer is electrically connected with the upper end of the lower resistive layer; the temperature resistance coefficient (TCR) value of the upper resistance layer is smaller than that of the lower resistance layer, and meanwhile the initial resistance value of the upper resistance layer is larger than that of the lower resistance layer. According to the invention, smoke can be discharged quickly, and a two-wire heating mode which is simple to control is adopted.

Description

technical field [0001] The invention relates to a heating rod of an electronic cigarette set. Background technique [0002] The internal heating type electronic cigarette heating rod is used to insert in the special baking type cigarette to bake the tobacco to generate the smoke for people to inhale. During the baking process, the tobacco does not burn, and there is no open flame and does not form soot. Since it does not burn, the harmful substances produced can be greatly reduced. There is no second-hand smoke, and it is a relatively low-toxic smoking method. Baking-style cigarettes are shorter than ordinary cigarettes, the length of shredded tobacco is generally 12-15mm, and the diameter is about φ7.2-7.5mm. The internal heating type electronic cigarette heating rod needs to be inserted into the cigarette to be heated. Generally, the diameter is about φ2mm, and the heating voltage is a DC voltage less than 4V. Tobacco roasting temperature is 280-350°C, if the temperature...

AI Technical Summary

Problems solved by technology

The initial heating point is close to the lower tailstock of the rod, that is, the lower part of the cigarette. Although it can rise to 350°C in 2-3 seconds, the temperature shimming time is long due to the low thermal conductivity of the zirconia material. The whole or upper part of the cigarette has not been fully roasted, and the effect of the first puff after heating for 15 seconds is not ideal

[0014] Chinese patent 2020

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