A capacitor metallization thin film material for high voltage transformer

Abstract

The invention discloses a capacitor metallization film material for high-voltage transformer, which relates to the technical field of capacitor film. The structure of the capacitor metallization filmmaterial for high-voltage transformer comprises the following steps: reserving edge, evaporating metal and plastic film; A metallize film material is formed by use a metallized evaporation electrode on a plastic film of an electric inducer; When a metallic evaporation electrode is used on a plastic film of an electric inducer, a blank area which is not subjected to metallization evaporation is arranged, and the blank area is a reserved edge; As aluminum is use as that main base material on the metal vaporizing electrode, silicon (Si) and cop (Cu) metals with a certain proportion are simultaneously contained, the capacitor manufactured from the metal vaporizing electrode is not easy to cause surface discharge.

Description

technical field [0001] The invention belongs to the technical field of metallized films, and in particular relates to a capacitor metallized film material for a high-voltage transformer. Background technique [0002] Metallized film capacitors can be used for both direct current (DC) and alternating current (AC). The metallized electrodes of existing alternating current (AC) film capacitors use zinc as surface evaporation, and direct current (DC) metallization The metal evaporation electrode of the film capacitor is evaporated on the surface of pure aluminum. When the AC voltage is applied, the discharge along the surface is easy to cause the oxidation of the film surface, and the metal evaporation electrode is corroded by the released electrons. This phenomenon occurs frequently. In addition, for DC Capacitor types in the field of high voltage application for voltage applications require materials with good self-protection properties that are not easily oxidized. [0003] ...

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Problems solved by technology

[0002] Metallized film capacitors can be used for both direct current (DC) and alternating current (AC). The metallized electrodes of existing alternating current (AC) film capacitors use zinc as surface evaporation, and direct current (DC) metallization The metal evaporation electrode of the film capacitor is evaporated on the surface of pure aluminum. When the AC voltage is applied, the discharge along the surface is easy to cause the oxidation of the film surface, and the metal evaporation electrode is corroded by the released electrons. This phenomenon occurs frequently. In addition, for DC Capacitor types in high-voltage application fields for voltage applications require materials with good self-protection properties that are not easily oxidized

[0003] However, in recent years, even capacitors applied to alternating current (AC) applications have increased the operating voltage range and required high withstand voltages. Therefore, the problem to be solved now is how to avoid the existing metallized film capacitors for AC applications. 1. Capacitors made of zinc alloy materials are easy to cause oxidation of the film surface, reduction of evaporated metal, reduction of effective area of ​​metal evaporation, and attenuation of the electrostatic capacity of the capacitor when the capacitor is discharged along the surface.

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