Patent ID: 6845551
Filing Date: 2005-01-25
Classification: H01G,Y10T

Abstract:
1. A method of making a power electronics capacitor comprising the steps of: (a.) providing at least two conductor layers; (b.) inserting at least one separator layer between said conductors to provide a structure of conductor-separator-conductor; (c.) covering the upper and lower exposed conductors with at least one separator layer to thereby derive a structure of separator-conductor-separator-conductor-separator; (d.) repeating steps (a) through (c) whereby a capacitor element is formed that can withstand temperatures of 300° C. and above, and sustain an operating voltage of about 1-3 kV (e.) applying pressure to laminate the capacitor element of (d); (f.) forming electrically connective means on opposing sides of said laminated structure to attach leads to an external world; (g.) providing a housing means for containing the laminated structure comprised of an open, elongated body with a lid; (h.) connecting said electrical connective means and leads of (f) to terminals within said lid which are isolated therefrom by insulative bushings to receive power from an external source to energize said capacitor; (i.) inserting the laminated structure of (f) into the housing and holding said structure in a substantially spaced relationship with respect to said housing and said lid; (j.) closing said housing by permanently affixing the lid to said housing to hermetically seal said housing and laminated structure; (k.) evacuating gaseous contents by application of a vacuum to the closed housing of (j); (l.) filling the evacuated, closed housing with a non-reacting gas at pressures ranging from about ambient to 405.2 kPa; and (m.) utilizing the capacitor of (l) in a power electronics system by supplying energy from the external power source.