Electricity: electrical systems and devices – Electrostatic capacitors – Fixed capacitor
Patent
1997-08-11
1999-05-18
Kincaid, Kristine
Electricity: electrical systems and devices
Electrostatic capacitors
Fixed capacitor
361311, 361305, 29 2542, H01G4/005;4/008
Patent
active
059056282
ABSTRACT:
A metallized film capacitor formed by laminating or winding a metallized film 1 with metal evaporated electrode on one or both sides thereof so that a pair of metal evaporated electrodes 2 are opposite to each other, wherein electrode lead-out portions 3 are provided at both ends of the capacitor, each metal evaporated electrode is composed of a low resistance area abutting on the electrode lead-out portion and a remaining high resistance area having higher resistance than it, a split electrode pattern with a plurality of minute blocks 8 formed in a longitudinal direction and width direction and fusing areas 9 between the adjacent minute blocks is formed on at least one of the metal evaporated electrodes, and electrode partitioning lines 7 are formed at regular intervals in a longitudinal direction of the film. The metallized film is fabricated by depositing substance such as oil for preventing evaporation of metal on the evaporation side of a plastic film 10 through a rotary screen cylinder with any pattern formed by mesh processing and immediately thereafter depositing evaporated metal, thereby forming a split fuse pattern serving as a safeguard mechanism during high speed evaporation.
REFERENCES:
patent: 3298864 (1967-01-01), Maylandt
patent: 5051862 (1991-09-01), Pageaud et al.
patent: 5615078 (1997-03-01), Hudis et al.
patent: 5696663 (1997-12-01), Unami et al.
Kawai Masahiro
Nishimori Toshiyuki
Okabe Shigeo
Okuno Shigeo
Suzuki Nobuji
Dinkins Anthony
Kincaid Kristine
Matsushita Electric - Industrial Co., Ltd.
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