摘要:
An electrostatic type car air purifier comprising a high voltage generating portion, in which a number of tandemly connected resistors of high resistance value are inserted in an output circuit of the generating portion so as to suppress irradiation of electromagnetic noise and to thereby prevent electromagnetic interference in a mounted car radio or other car electric equipment.
摘要:
An electronic air cleaner having therein an electrostatic precipitator, an ultraviolet lamp, a deodorizing filter and at least one lead wire which extends along the deodorizing filter from an electric power source to a socket of the ultraviolet lamp. A channel-shaped holder receives in the channel thereof a lower section of a frame of the deodorizing filter so as to form in the channel an enclosed space through which the lead wire passes. At least the wall portions bounding the enclosed space are constructed of electrically conductive material and are grounded so that any noise wave emitted from the lead wire positioned within the enclosed space is prevented from leaking out by the shielding function of the conductive wall portions.
摘要:
An electronic air cleaner having therein an electrostatic precipitator and an ultraviolet sterilizing lamp is positioned close to an antenna of a radio receiver. A shielding cover lined with a thin metal film covers the lamp to block radiation of the electric noise waves generated by the lamp.
摘要:
A device for electrically connecting a spark plug to a high-voltage cable supplying a high voltage to the spark plug from an ignition coil, comprising a connecting member whose maximum length in the axial direction of the spark plug is selected to be not longer than 25 mm so as to reduce the antenna effect in the area including the connecting member thereby minimizing undesirable radiation of noise which provides radio interference against other electronic units.
摘要:
An ignition distributor is disclosed which comprises an input terminal, output terminals, a rotor adapted to rotate with rotation of an engine and provided at its one end with a magnet, a first electrode facing the rotor and coupled to the input terminal, a piezo-conductive plate placed on the surface of the first electrode opposite to the rotor, second electrodes formed of magnetic material and connected to the output terminals, respectively, and the second electrodes circumferentially arranged on the piezo-conductive plate. When the rotor rotates to bring the magnet below one of the second electrodes, the one second electrode is attracted to exert a pressure on the piezo-conductive plate so as to render it conductive thereby establishing an electrical connection between the input terminal and the output terminal connected to the one second electrode.
摘要:
An electronic air cleaner, having therein an electrostatic precipitator, is positioned close to an antenna of a radio receiver. The grounded plate electrodes of the precipitator are provided with a flat portion which lies between the precipitator proper and the antenna, so that electric noise wave generated by the precipitator and directing toward the antenna is blocked by the flat portion.
摘要:
To reduce the breakdown potential magnitude between the output tip surface of an ignition distributor rotor output segment and each of the output terminals of the distributor cap, the rotor output segment is made of a low thermally conductive material 0.1 mm to 1.00 mm thick, and a layer of a silicone dielectric material such as a silicone plate, viz., a plate including at least a sheet of silicone varnish-containing glass cloth, is secured to at least a portion of at least one of the top and bottom surface areas of the rotor output segment.
摘要:
An optical power supply switching apparatus by which a battery power can be connected to or disconnected from at least one electric appliance provided for an automotive vehicle without generating electromagnetic noise or electromagnetic interference between the electric appliance and other audio equipment. The optical power supply switching apparatus according to the present invention comprises at least one light-emitting element, one optical fiber, at least one photoelectric transducer, at least one semiconductor contactless switching element, and a plurality of optical directional-couplers and optical filters where necessary, in addition to a special low-impedance coaxial power distribution line.
摘要:
A plasma ignition system for an engine having any number of engine cylinders, which comprises: (A) a plurality of plasma ignition plugs each mounted within a corresponding engine cylinder; (B) a first power supply unit for supplying a first electric power into each plasma ignition plug so as to generate a spark discharge within each plasma ignition plug; (C) a first switching circuit for sequentially connecting the first power supply unit to each plasma ignition plug according to a predetermined ignition order; (D) a second power supply unit for supplying a second electric power into each plasma ignition plug so as to generate a high-temperature plasma gas within each plasma ignition plug; and (E) a second switching circuit for sequentially connecting two of the plasma ignition plugs within the respective engine cylinders, one engine cylinder being at the start of an explosion stroke and the other engine cylinder being at almost end of an exhaust stroke, in a predetermined delay after the occurrence of the spark discharge at the corresponding plasma ignition plug when the engine speed is below a predetermined value, so that the number of high-voltage withstanding characteristic capacitors and switching elements (thyristors) of the switching circuits can be reduced half that of engine cylinders and the power consumption of these first and second power supply units can be saved remarkably particularly when the engine speed exceeds the predetermined value, e.g., 3000 r.p.m.
摘要:
A plasma jet ignition plug comprises an electric insulator formed with a discharge cavity and a plurality of electrodes communicating with the discharge cavity to form, within the discharge cavity, a spark gap. The plurality of electrodes include a central electrode connected to a high voltage electric source and a low voltage electric source, and a peripheral electrode which is grounded. The peripheral electrode substantially closes the discharge cavity and is formed with a jet opening. At least that part of at least one of the plurality of electrodes which communicates with the discharge cavity is made of a material selected from a group consisting of ferrite, a nickel alloy containing at least one of silicon, aluminum and magnesium, and electrically conductive ceramic.