Tubular heater as well as preparation method and application thereof

Abstract

The invention discloses a tubular heater as well as a preparation method and application thereof. The preparation method comprises the steps of (1) providing a ceramic-based cast film; (2) forming a first insulating layer on at least part of the surface of the cast film; (3) forming an electrode layer on at least part of the surface of the first insulating layer; (4) forming a second insulating layer on at least part of the surface of the electrode layer; (5) winding the composite film obtained in the step (4) to form a tubular structure provided with a multilayer heater assembly; (6) enablingthe tubular structure product obtained in the step (5) to be subjected to isostatic pressing treatment and high temperature co-firing treatment; (7) welding an electrode lead on the product obtainedin the step (6) so as to obtain the tubular heater. The method provided by the invention is simple in process and low in energy consumption; furthermore, the prepared tubular heater is high in strength, falling-resistant, low in heat transfer and heat dissipation coefficients and more uniform in heating, can save energy to the utmost extent, reduces the charging frequency of an electronic cigarette, and solves the problem of heat generation of a whole cigarette rod.

Description

technical field [0001] The invention belongs to the field of electronic cigarettes, and in particular relates to a tubular heater and a preparation method and application thereof. Background technique [0002] E-cigarettes have shown a trend of vigorous development in recent years, and smoking methods have quietly changed among young people. The traditional combustion smoking methods coexist with the existing smoke oil atomization and heat-not-burn smoking methods. In Europe, America, Japan, South Korea, etc. In the region, e-cigarettes have developed into a huge market of tens of billions of dollars, and it is still showing a blowout trend. [0003] There are mainly two types of e-cigarettes currently on the market. One is the type that generates simulated smoke for the atomization of e-liquid (hereinafter referred to as "atomized e-cigarette"), which mainly uses an atomizer to heat and atomize the e-liquid to generate smoke. The more representative brands are RELX, Gippro...

AI Technical Summary

Problems solved by technology

For heating devices, stainless steel heating tubes and sheet heating sheets are more common. The heating wire of the stainless steel heating tube is attached to the inside or outside of the tube. Because the heat transfer coefficient of the steel tube is very fast, the temperature of the entire smoke rod is very high, which is not conducive to The work of other electronic components in the cigarette rod; in addition, because the heat dissipation coefficient of stainless steel is also very fast, the heat storage effect of the heating tube is poor, and the cigarette rod consumes a lot of power during use and requires frequent charging, making this type of electronic cigarette The experience effect is poor; while the sheet heater is directly inserted into the pod for heating, but its heating area is small, and the tobacco in the pod can only work around the circle around the heating pad, resulting in a large amount of smoke inside the pod. Smoke substances cannot be volatilized by heating

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