A multiple parallel conductor that is easy to produce and use and has a plurality of twisted, insulated individual conductors. The individual conductors are arranged above one another in a plurality of sub-conductor bundles arranged next to one another. A strip is applied to the multiple parallel conductor on a side surface of the multiple parallel conductor in the longitudinal direction of the multiple parallel conductor, on which strip spacer plates are arranged so as to be distributed in the longitudinal direction, and the multiple parallel conductor together with the strip and the spacer plates is wrapped with a wrapping.

An electrical component includes a ferromagnetic core with a first and a second leg; a primary winding with a first primary winding portion arranged around the first leg of the ferromagnetic core and a second primary winding portion arranged around the second leg of the ferromagnetic core; wherein the first primary winding portion and the second primary winding portion each include parallel connectable conductors arranged around the ferromagnetic core in a cross section with the conductors being radially displaced with respect to each other at radial row positions, wherein the number of conductors of the first primary winding portion is equal the number of conductors of the second primary winding portion.

A transmission element for a downhole tool comprising an annular housing and an annular ferrite channel within the annular housing. An annular nonlinear coil may be disposed within the annular ferrite channel, and the nonlinear coil may be connected to a cable running within the downhole tool. The housing may be an annular groove or recess within the tool, an annular metal trough, or an annular polymeric block. The polymeric block may comprise a composite of a polymer and a volume of ferrite elements comprising Fe and Mn. The annular nonlinear coil may comprise a wave, a helix, a twisted pair of wires, a transformer comprising a coil and a metal core, or a combination thereof. The polymeric block may comprise and bumper on its periphery and a void opening within the block proximate the bumper. The ferrite channel and the coil may be molded within the polymeric block.

A power transmission unit includes: a power transmission coil; a communication coupler that is formed in an annular shape about an axis X and arranged to surround the power transmission coil; and a shielding member that is formed in an annular shape about the axis X, and arranged between the power transmission coil and the communication coupler in an intersecting direction. The shielding member is arranged at a position along the intersecting direction to surround the power transmission coil, and shields magnetic force generated by the power transmission coil.

A common-mode choke coil is configured such that in one turn of a stranded portion, a number of times a first wire is disposed outside a second wire on a first side surface of a core is equal to a number of times the second wire is disposed outside the first wire on a second side surface that is opposite to the first side surface. Also, a number of times the first wire is disposed outside the second wire on a top surface of the core is equal to a number of times the second wire is disposed outside the first wire on a bottom surface that is opposite to the top surface.

A press-fit wire disposed in a magnetic device is provided. The press-fit wire includes a first wire and a second wire. The second wire is attached to the first wire. The first wire and the second wire are arranged along a first direction and are parallel circuits. The first wire and/or the second wire is a multi-strand wire.

A coil component comprising a core having a winding core part, and a coil wound around the winding core part and including a plurality of wires. The coil includes a twisted wire portion in which the plurality of wires is twisted together. The twisted wire portion includes a bank region including a first layer wound multiple turns continuously around the winding core part and a second layer wound on the first layer continuously from the first layer. The bank region is sparsely wound with the number of turns of the second layer reduced by two or more as compared to the number of turns of the first layer.

A coil component includes a core including a winding core portion, a first wire, a second wire, a third wire, and a fourth wire that are wound around the winding core portion. A winding portion is formed by winding the respective first to fourth wires around the winding core portion. The winding portion includes a twisted wire portion in which the first wire, the second wire, the third wire, and the fourth wire are collectively twisted.

A method for manufacturing an electric winding of an electromagnetic induction apparatus includes providing a conductor structure including a conductor element extending longitudinally along a main extension direction and one or more spacer tapes of electrically insulating material around said conductor element along said main extension direction, each spacer tape having spacer portions at corresponding lateral surfaces of said conductor element and spaced one from another along the lateral surfaces. The method includes forming an electric winding extending axially along a winding direction and having a plurality of turns arranged around said winding direction where each turn is formed by a corresponding longitudinal portion of said conductor element. The spacer portions are interposed between adjacent turns at opposite sides and respectively positioned spaced one from another to define an empty space to form a radial channel of the electric winding and configured for a passage of an electrically insulating medium

A coil component includes a winding core, and a first wire and a second wire that are spirally wound around the winding core, that have substantially the same number of turns, that are not electrically connected to each other, and that have a twisted portion at which the first wire and the second wire are twisted together. In the coil component, the first wire and the second wire are wound around the winding core such that layers are formed. The twist pitch of the twisted portion at a turn in a first layer differs from the twist pitch of the twisted portion at a turn adjacent thereto in a second layer.