Heating sheet and preparation method and application thereof

Abstract

The invention discloses a heating sheet and a preparation method and application thereof. The heating sheet comprises a base body and a surface enamel layer. The base body comprises a lower substratelayer, a lower insulation layer, electrodes, an upper insulation layer, an upper substrate layer and a contact electrode, and the lower insulation layer is arranged on the lower substrate layer; the electrodes are arranged on the lower insulation layer and comprise the lead electrode and the heating electrode which are connected; the upper insulation layer is arranged on the electrodes, and a first open hole is formed in the upper insulation layer; the upper substrate layer is arranged on the upper insulation layer, and a second open hole is formed in the upper substrate layer and connected with the first open hole; the contact electrode is arranged on the upper substrate layer and electrically connected with the lead electrode through the second open hole and the first open hole in sequence; the surface enamel layer is arranged to surround the outer surface of the base body and does not cover the contact electrode. The heating sheet is low in preparation difficulty, long in service life and high in efficiency and has a good heating effect.

Description

technical field [0001] The invention belongs to the field of electronic cigarettes, in particular, the invention relates to a heating sheet and a preparation method and application thereof. Background technique [0002] E-cigarettes have shown a booming trend in recent years, and the way of smoking has quietly changed among young people. The traditional combustion smoking method coexists with the existing smoke oil atomization and heat-not-burn smoking methods, and the choice of the latter two The crowd of a new type of smoking method is getting bigger and bigger. In Europe, America, Japan, South Korea and other regions, 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 ...

AI Technical Summary

Problems solved by technology

Since the resistance of the heating electrode has a great correlation with the sintering system, this will lead to very complicated process control and difficult to guarantee the consistency of the product

In addition, due to the zirconia material itself, laser scribing on the sintered substrate will cause micro-cracks in the material due to thermal effects, which will affect the flexural strength of the product and cause the product to be easily broken during use.

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