A New Laminated Wound Film Capacitor

Abstract

The invention relates to a new lamination type reel film capacitor, an improved capacitor in nature, and in particular to a new lamination type reel film capacitor. The capacitor comprises an insulating dielectric layer, metal plating layers and insulating varnish layers. The front face and the back face of the insulating dielectric layer are both coated with the metal plating layers. Either the left side or the right side of the insulating dielectric layer is provided with an edge without the metal plating layer. The metal plating layers (2) are coated with the insulating varnish layers. Either the left side or the right side of each metal plating layer is provided with an edge without the insulating varnish layer. The insulating dielectric layer, the metal plating layers and the insulating varnish layers are integrated as one to make a film capacitor in a reeling manner. In comparison with ordinary lamination type capacitors, the capacitor of the invention has a smaller size and consumes less power. The new lamination type reel film capacitor has excellent ability to charge and discharge power and the most optimized performances.

Description

technical field [0001] The invention relates to the improvement of capacitors, in particular to a novel stacked winding film capacitor. Background technique [0002] Film capacitor is a kind of capacitor. It is a capacitor with superior performance. It mainly has the following characteristics: non-polarity, high insulation resistance, wide frequency response, and low dielectric loss. Because film capacitors have the characteristics of small size and large capacity, they are widely used. [0003] Film capacitors are now mainly fabricated with metallized film windings. The metallized film is made by coating a layer of metal coating on the film, and the metal coating is used as an electrode. The use of metallized film reduces the volume of the capacitor and makes it easy to make a capacitor with small volume and large capacity. [0004] Film capacitors can be divided into two types in terms of processing methods: winding type and laminated type. The winding type is processed...

AI Technical Summary

Problems solved by technology

With the development of science and technology, equipment has higher and higher requirements for the miniaturization of surface-mounted components. In order to make qualified capacitors in smaller volumes, the insulating dielectric layer of film capacitors is getting thinner and thinner. Films smaller than 3 μm have appeared, and the requirements for production equipment are getting higher and higher, but they still cannot fully meet the requirements of miniaturization

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