Flat electrolytic capacitor
First Claim
1. A flat electrolytic capacitor comprising a frame of insulating material surrounding a wound and flattened extended aluminum foil capacitor section containing an electrolyte, the edges of a first electrode foil of said section that extend beyond a second electrode foil of said section along one side of said section being welded together in at least one place along said side, the edges of said second electrode foil that extend beyond said first foil on the opposite side of said section being similarly welded, each electrode foil terminating in an electrode tab, one metallic member electrically connected to said first electrode foil through one of said tabs and bonded completely around the upper surface of said frame, and a second metallic member electrically connected to said second electrode foil through the other of said tabs and bonded completely around the bottom surface of said frame, whereby no electrical connection protrudes through the case, said frame separates said metallic members, and the exterior of each said metallic member serves as a terminal for said capacitor.
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Accused Products
Abstract
A wound and flattened extended-foil section containing an electrolyte is encased within a frame of insulating material that is closed on the top and bottom by metallic members electrically insulated and spaced from each other by the frame. One electrode of the section is electrically connected within the frame to one of the metallic members, and the other electrode is electrically connected within the frame to the second metallic member. The metallic members may serve as terminals for the capacitor, or leads may be attached to their external surfaces.
87 Citations
6 Claims
- 1. A flat electrolytic capacitor comprising a frame of insulating material surrounding a wound and flattened extended aluminum foil capacitor section containing an electrolyte, the edges of a first electrode foil of said section that extend beyond a second electrode foil of said section along one side of said section being welded together in at least one place along said side, the edges of said second electrode foil that extend beyond said first foil on the opposite side of said section being similarly welded, each electrode foil terminating in an electrode tab, one metallic member electrically connected to said first electrode foil through one of said tabs and bonded completely around the upper surface of said frame, and a second metallic member electrically connected to said second electrode foil through the other of said tabs and bonded completely around the bottom surface of said frame, whereby no electrical connection protrudes through the case, said frame separates said metallic members, and the exterior of each said metallic member serves as a terminal for said capacitor.
Specification