摘要:
An electric wire capable of reducing an AC resistance equal to or less than the copper wire. The wire includes a single layered structure having a first layer of a substance having lower conductivity than copper, or includes a double-layered structure in which a second layer of copper is formed on a periphery of the first layer, wherein a radius of the wire is smaller than a skin depth thereof, an alternating current resistance value of the wire at a frequency used in the wire is provided in excess of a sum of a value obtained by multiplying a direct current resistance value of the wire by a ratio of a cross-sectional area of the first layer and an entire cross-sectional area of the wire, and a direct current resistance value of a copper wire having a same shape and a same outer diameter as the wire.
摘要:
An electric wire includes a conductive portion 11 made of a material having a volume resistivity higher than that of copper, wherein the volume resistivity of the conductive portion is specified so that, in a frequency range in which the electric wire is used, a ratio of AC resistance of the conductive portion 11 to AC resistance of reference copper wire is less than 1.
摘要:
Apparatus and methods for magnetically enhanced electrical signal conduction are disclosed. An embodiment electrical connector comprises a connector body, a first active signal contact mechanically attached to and at least partially disposed within the connector body, a ground contact mechanically attached to the connector body, an insulator mechanically separating and electrically isolating the first active signal contact and the ground contact, and a first permanent magnet electrically connected to the first active signal contact. An embodiment electrical cable comprises an elongated insulating sheath, a first active signal electrical conductor disposed within the sheath, a first connector body mechanically attached to a first end of the sheath, a first active signal contact mechanically attached to the first connector body, and electrically connected to the first active signal electrical conductor, and a first permanent magnet electrically connected to the first active signal electrical conductor.
摘要:
A cable includes a conductive core, an insulating layer, a shielding layer, and a sheath. The sheath coats the shielding layer. The shielding layer coats the insulating layer. The insulating layer coats the conductive wire. The conductive core includes a conductive wire and a carbon nanotube film comprising a plurality of carbon nanotubes. The carbon nanotubes coat the conductive core.
摘要:
A cable includes a conductive core, an insulating layer, a shielding layer, and a sheath. The sheath coats the shielding layer. The shielding layer coats the insulating layer. The insulating layer coats the conductive wire. The conductive core includes a conductive wire and a carbon nanotube film comprising a plurality of carbon nanotubes. The carbon nanotubes coat the conductive core.
摘要:
The present invention provides electric cable having substantial immunity to external magnetic fields. The cables may be prepared by splitting one or more conductors of an original cable design into two or more sub-conductors, determining a crosssectional area for each one of the sub-conductors to obtain a desirable electrical current density therethrough, arranging the sub-conductors in said cable in an intervening fashion such that each sub-conductor is placed adjacent and alongside at least one neighboring conductor or sub-conductor associated with either a different electrical phase or electric current direction, and electrically connecting the sub-conductors of each split conductor in parallel.
摘要:
In a multi-core cable 10, plural electric wire units 12 made of stranded plural small-diameter electric wires 11 are bundled to form an electric wire assembly 14 and a shielding layer 15 made of braided a conducting wire 15a is arranged on an outer periphery of the electric wire assembly and an outside of the shielding layer is covered with a sheath 16 made of resin. In the multi-core cable 10, the conducting wire 15a of the shielding layer 15 braided is made of a copper alloy wire given silver plating, and a diameter of the wire of the conducting wire is 0.04 mm to 0.15 mm, and a conductor elongation rate of the conducting wire is 0.8% or more, and a thickness of the silver plating is set at 0.6 μm or more.
摘要:
A high frequency cable includes: a central conductor made from aluminum or an aluminum alloy; a covering layer made from copper covering the central conductor, and having a fiber-like structure in a longitudinal direction; and an intermetallic compound layer formed between the central conductor and the covering layer and having greater volume resistivity than the covering layer, wherein a cross-sectional area of the covering layer is 15% or less of an entire cross-sectional area including the central conductor, the intermetallic compound layer and the covering layer.
摘要:
A high frequency cable includes: a central conductor made from aluminum or an aluminum alloy; a covering layer made from copper covering the central conductor, and having a fiber-like structure in a longitudinal direction; and an intermetallic compound layer formed between the central conductor and the covering layer and having greater volume resistivity than the covering layer, wherein a cross-sectional area of the covering layer is 15% or less of an entire cross-sectional area including the central conductor, the intermetallic compound layer and the covering layer.
摘要:
A current conductor made of braided wire is provided for use in applications of over 5 A/mm2 density or in pulsating applications. The current conductor is formed by braiding conductor-containing groups (11) of strands that are insulated from one another, with the groups (11a, 11b) intersecting one another at an angle. The braid has a cross section of closed profile, and within the cross section a spacer (12)is positioned for preserving the shape of the profile and for maintaining spaced the braid portions facing one another. The angle of intersection of the mutually intersecting groups (11) is 90°±30°.