Production process for electro-thermal film encapsulation

Abstract

The invention discloses a production process for electro-thermal film encapsulation, comprising the following steps: S1, making a composite film; S2, pasting an aluminum foil shielding layer, S3, installing a connection terminal; S4, carrying out wiring and insulation; S5, encapsulation; S6, opening sealing; and S7, exhausting and sealing. The beneficial effects are as follows: by adopting the production process for electro-thermal film encapsulation provided by the invention, electro-thermal films can conduct heat evenly, electro-thermal films will not be locally overheated and damaged, and the service life and safety of electro-thermal films are improved; and moreover, an electro-thermal film produced by the process can effectively avoid leakage protector mis-tripping caused by leakage current without a current compensation circuit, has higher electro-thermal performance, can be used in a damp environment, and effectively eliminates the influence of leakage current.

Description

[0001] 【Technical field】 [0002] The invention relates to a manufacturing process of indoor heating facilities, in particular to a manufacturing process of encapsulating an electric heating film. [0003] 【Background technique】 [0004] As an indoor heating facility, electrothermal film has gradually entered people's lives. At present, high temperature resistant plastics such as PET and PI are usually used as printing substrates and packaging films for conductive heating inks. This electrothermal film is laid under concrete. A certain leakage current will be formed, and if the leakage current exceeds the monitoring value of the leakage protector stipulated by the state, it will cause a false trip and make the electrothermal film not work normally. Although the production process of the electrothermal film has been developed for many years, there are still many For example, the current general process of encapsulating the electrothermal film cannot effectively solve the problem...

AI Technical Summary

Problems solved by technology

[0004] As an indoor heating facility, electrothermal film has gradually entered people's lives. At present, high temperature resistant plastics such as PET and PI are usually used as printing substrates and packaging films for conductive heating inks. This electrothermal film is laid under concrete. A certain leakage current will be formed, and if the leakage current exceeds the monitoring value of the leakage protector stipulated by the state, it will cause a false trip and make the electrothermal film not work normally. Although the production process of the electrothermal film has been developed for many years, there are still many For example, the current general process of encapsulating the electrothermal film cannot effectively solve the problem of false tripping of the leakage protector caused by the leakage current formed by the electrothermal film embedded in the concrete, especially in a humid environment or when the laying area is too large. The current value will exceed the monitoring value of the leakage protector

In order to solve the problem of false tripping of the leakage protector due to the capacitive current generated between the electrothermal film and the concrete bottom, the industry usually uses wiring to return the leakage current to the leakage protector. This method is more troublesome in construction and only It can solve this problem to a certain extent, and circuit failure will cause the electric heating film to fail to work, and even affect the safety of the electric heating film