摘要:
A disclosed metallized film capacitor comprisesa number of first insulating foil film segments coated with metal electrode layers on at least each one surface thereof, the metal electrode layers with a same pattern on same sides of the first insulating foil film segments constituting a first electrode segment group, and the metal electrode layers with another same pattern on same sides of the first insulating foil film segments constituting a second electrode segment group, anda first and a second metal contact layers respectively disposed in contact with the first and the second electrode segment groups at side edges thereof, andthe capacitor is provided with fusing proof function for the purpose of prevention of emitting smoke from and/or burning of the capacitor, which is improved by features that the metal electrode layers comprises previously-processed portions at side edges thereof adjacent the first and the second metal contact layers, and that the previously-processed portions are electrically cut off, when dielectric breakdown occurs between respective pairs of confronting metal electrode layers, which dielectric breakdown makes at least one metal electrode layer of one pair among the respective pairs of the confronting metal electrode layers electrically separate from the first and the second electrode segment groups.
摘要:
A metallized film capacitor formed from a pair of metallized films. Each of the metallized films includes a dielectric film with a metal evaporated electrode formed thereon. One electrode has longitudinal electrode partitioning lines and a plurality of small blocks separated by fuse areas, while the other electrode does not. Each metallized film is formed by moving the film over a screen cylinder having a side wall with openings formed therein. A nozzle is disposed inside the screen cylinder, adjacent to the side wall. Oil is ejected from the nozzle, while the screen cylinder is rotated. The oil passes through the side wall and is deposited on the film to form a pattern thereon. Subsequently, evaporated metal is deposited on the film.
摘要:
A capacitor has a capacitor element including a metallized film and a case for hermetically containing the capacitor element. The capacitor element has a protective mechanism for protecting it against insulation breakdown at overvoltage or thermorunaway. The capacitor also has a safety device for keeping the capacitor safe at high internal pressure due to heating. Thus, the protective mechanism and the safety device operate surely, the capacitor is protected under various severe conditions, and the life of the capacitor becomes longer.
摘要:
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.
摘要:
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.
摘要:
A capacitor has a plastic film (4a, 4b), an aluminum deposition film (5a, 5b) formed on the plastic film (4a, 4b), and a zinc deposition film (6a, 6b) formed on the aluminum deposition film (5a, 5b) over the side of one edge part of the plastic film (4a, 4b).
摘要:
A dielectric resonator device which includes dielectric resonators constituted by a rectangular cavity shield casing and a composite dielectric structure formed by three dielectric members intersecting at right angles with each other to be combined into one unit and disposed in the rectangular cavity shield casing to provide three resonances by TM.sub.110 modes or modified modes thereof which are utilized by the dielectric resonators, and an external coupling device for coupling the dielectric resonators with external circuits.
摘要:
A dielectric resonator is disclosed which includes a case having a resonator main body portion, an upper lid and a lower lid. Inside the case is a cylindrical dielectric material. The case is formed of a dielectric material having the same coefficient of linear expansion as the cylindrical dielectric material. In one embodiment, main body portion comprises a dielectric case side portion with the cylindrical dielectric material disposed concentrically in a concavity defined by the case side portion, with the cylindrical dielectric material being integrally coupled to the dielectric case side portion by four connecting portions. More specifically, in this embodiment, the case side portion of the main body portion and the cylindrical portion are simultaneously and integrally formed of the same dielectric material. A conductive film is formed to enclose a region surrounding the cylindrical dielectric material. In one embodiment, the conductive film is formed on the whole outer surface of the dielectric case side portion and conductive films and are also formed on the lower surface of the upper lid and the upper surface of the lower lid.
摘要:
A dielectric resonator employing TM.sub.010 mode or its variation mode, and including a cavity resonator and a columnar inner dielectric member accommodated within the cavity resonator a region being formed at an end face of the inner dielectric member so as not to contact the cavity resonator, and a resonant frequency adjusting member being adapted to be movable toward or away from the region, thus adjusting the resonant frequency through variation of a capacitance value in a path passing through the columnar dielectric member, the resonant frequency adjusting member, and the cavity resonator.
摘要:
In order to provide a water-based coating composition for surface treatment of metallic materials having excellent chemical resistance, corrosion resistance, solvent resistance and adhesion, a cationic aqueous urethane resin (F) is prepared, which is obtained by chain-elongation of a cationic urethane prepolymer (D) using water or a polyamine compound (E), the cationic urethane prepolymer (D) being formed by neutralized a tertiary amino group by an acid or quaternarized the tertiary amino group by quaternarizing agent, the tertiary amino group being included in a urethane prepolymer comprising, as components thereof, a compound (A) having two or more active hydrogen atoms, an organic polyisocyanate (B), and a chain elongation agent (C) having the tertiary amino group.