Electrode device of high-voltage pulse ceramic capacitor

Abstract

The invention provides an electrode device of a high-voltage pulse ceramic capacitor. The electrode comprises a circular base and an electrode connection part integrally connected with the circular base. The electrode is characterized in that a number of circular holes penetrating the circular base are arranged with spacing on the circular base on the periphery of the electrode connection part. According to the invention, the current density is reduced during pulse discharge by increasing the edge perimeter, thereby greatly reducing the thermal energy generated by pulse current; the electrodedoes not generate high temperature which can melt soldering tin during pulse discharge; and the work reliability and the service life of the ceramic capacitor are improved.

Description

Technical field [0001] The invention relates to the field of electronic components, in particular to the electrode device of a high-voltage ceramic capacitor. Background technique [0002] Ceramic capacitors generally have a chip and cylindrical structure. The ceramic material is used as a medium for molding and sintering, and then a conductive layer is coated on both ends, and electrodes are set on the conductive layer, and then encapsulated by insulating resin. The electrode serves as the lead-out end of the ceramic capacitor for external circuit connection. High-voltage pulse ceramic capacitors are generally used in the power industry or the military industry to perform functions such as measurement, voltage division, and energy storage. The current high voltage pulse ceramic capacitor structure is as figure 1 with figure 2 , The ceramic capacitor ceramic chip 1 is coated with a conductive layer on both ends of the ceramic chip 1, and an electrode 2 is provided on the condu...

AI Technical Summary

Problems solved by technology

This type of ceramic capacitor has excellent electrical performance, but there are still large defects in the use process

When this type of ceramic capacitor is used for a period of time, due to the current collection effect and pulse discharge, the generated large current forms a high-density current at the edge of the electrode, causing the temperature of the electrode to rise sharply, resulting in high temperature, making the electrode base and the conductive layer The solder between the two parts melts, causing the electrode base to fall off from the conductive layer, resulting in poor contact between the electrode and the ceramic piece, thus causing the capacitor to fail, resulting in circuit failure and unnecessary losses

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