Ultrahigh Voltage Capacitor Assembly

摘要

A capacitor assembly for use in ultrahigh voltage environments is provided. To help achieve good performance at such high voltages, a variety of aspects of the assembly are controlled in the present invention, including the number of capacitor elements, the manner in which the capacitor elements are arranged and incorporated into the assembly, and the manner in which the capacitor elements are formed. For example, the capacitor assembly contains an anode termination to which the anode lead of a first capacitor element is electrically connected and a cathode termination to which the cathode of a second capacitor element is electrically connected. To help improve the breakdown voltage properties of the assembly, the capacitor elements are electrically connected in series such that the anode lead of the second capacitor element is also electrically connected to the cathode of the first capacitor element via a conductive member.

主权项

1. A capacitor assembly comprising:
first and second capacitor elements that each contain a sintered porous anode body, a dielectric layer that overlies the anode body, and a solid electrolyte overlying the dielectric layer that includes a conductive polymer, wherein first and second anode leads extend from the first capacitor element and the second capacitor element, respectively; a connective member that electrically connects the solid electrolyte of the first capacitor element to the anode lead of the second capacitor element; a housing that defines an interior cavity within which the first and second capacitor elements are positioned and hermetically sealed, wherein the interior cavity has a gaseous atmosphere that contains an inert gas; an external anode termination that is in electrical connection with the first anode lead of the first capacitor element; and an external cathode termination that is in electrical connection with the solid electrolyte of the second capacitor element.