An electro-magnetic coil with coolant permeability wound using insulated wire includes a plurality of radially arranged layers and a plurality of axially arranged turns of the insulated wire per layer, wherein the insulated wire has a plurality of sections along its length with different cross-sections for any pair of two adjacent sections that collectively form into axial and radial coolant channels as the wire is wound around a core.

An inductor element includes a first conductive portion, a second conductive portion, and a magnetic core. The first conductive portion includes a first round-about portion, a first mount portion, and a second mount portion. The second conductive portion includes a second round-about portion, a third mount portion, and a fourth mount portion. The magnetic core houses at least a part of the first and second conductive portions so that each mount surface of the first to fourth mount portions is exposed from one side of the magnetic core. The first and second conductive portions are arranged so that the first and second directions are substantially parallel and opposite to each other. The first and third mount portions are at least partially overlapped with each other in a third direction perpendicular to the first and second directions.

An inductor component includes a core including a winding core portion, a first collar disposed at a first end of the winding core portion in an axial direction, and a second collar disposed at a second end of the winding core portion in the axial direction. The inductor component further includes a first electrode disposed on the first collar; a second electrode disposed on the second collar; and a wire electrically connected to the first electrode and the second electrode and wound around the winding core portion in such a manner as to form a plurality of wound regions arranged along the axial direction of the winding core portion. A distance between adjacent ones of the wound regions is greater than a winding pitch of the wire in each of the wound regions.

The invention comprises an apparatus, comprising: an inductor, the inductor comprising: an electrical turn about an inductor core, the inductor core comprising a ring shape; the electrical turn comprising a first width at a first radial distance from a center of the inductor core and a second width at a second radial distance from the center, the second width at least ten percent larger than the first width. Optionally and preferably, the electrical turn comprises: a first cast element and a second cast element and a mechanical connection connecting the first cast element to the second cast element, such as an aluminum weld.

This disclosure provides an integrated transformer and a power converter, the integrated transformer includes: a magnetic core, including an upper cover, a lower cover, a first winding column and a second winding column; a printed wiring board, disposed between the upper cover and the lower cover, and including a first through hole corresponding to the first winding column and a second through hole corresponding to the second winding column; and a first winding, a second winding, a third winding and a fourth winding; the first winding and the third winding are wound on the first winding column and the second winding column respectively, the second winding and the fourth winding are provided at positions corresponding to the first through hole and the second through hole on the printed wiring board, and magnetic flux directions within the first winding column and the second winding column are opposite.

The invention comprises a method for manufacturing an inductor, comprising the steps of: casting a cast winding comprising an inner cavity; inserting a first inductor core subsection into the inner cavity; inserting a second inductor core subsection into the inner cavity; and mechanically coupling the first inductor core subsection to the second inductor core subsection to form an inductor core wound by the cast windings. The method of manufacturing optionally includes the steps of: forming at least a portion of the cast winding into an arced helical shape; forming the first inductor core subsection and the second inductor core subsection into elements of a torpid shaped inductor core; deforming the cast winding to physically allow the step of inserting the first inductor core subsection into the inner cavity; and/or deforming at least a portion of the cast winding into an arced helical coil shape after the step of inserting.

An electronic circuit includes a shield line including first and second signal lines and a shield. The first and second signal lines are connected to a signal source, and the shield coating is around the first and second signal lines. The electronic circuit further includes a signal ground near the signal source; a frame ground that is isolated from the signal ground and connected to the shield; a common mode choke coil that includes first, second and third coils magnetically coupled to one another; and a capacitor that is connected in parallel with the third coil. The first coil is connected in series between the signal source and the first signal line. The second coil is connected in series between the signal source and the second signal line. The third coil and the capacitor that are connected in parallel are connected between the signal ground and the frame ground.

An electromagnetic switch for a starting device of an internal combustion engine may include a coil carrier, a coil winding, and a piston. The coil carrier may have a carrier wall which encloses a cavity. The coil winding may have a coil wire wound on a side of the carrier wall facing away from the cavity which provides a magnetic field within the cavity. The piston may be axially adjustable in the cavity. The piston may be disposed in a passive position and may be adjusted axially in a direction of a core. In the passive position, the piston and the core may define an axial gap therebetween in the cavity. The coil wire may have a first winding section and a second winding section wound in opposing directions. At least one winding of the second winding section may axially overlap the axial gap.

Provided is a filter device including a plurality of coils, a plural of capacitors, and a frame. The coils constitute a plurality of coil groups. Each coil group includes two or more coils. The two or more coils in each coil group are provided such that respective windings of the two or more coils extend spirally about a central axis and respective turns of the two or more coils are sequentially and repeatedly arranged in an axial direction in which the central axis extends. The coil groups are provided coaxially with the central axis. A pitch between the respective turns of the two or more coils of any one coil group among the coil groups is larger than a pitch between the respective turns of the two or more coils of the coil group provided inside the one coil group among the coil groups.

A vapor delivery device includes an induction coil system. The induction coil system can include a coiled fluid tube, a coiled wire, a capsule between the coiled fluid tube and the wire, and a cooling fluid supply configured to force a cooling fluid through the capsule across the coiled wire. The induction coil system can include a closed loop ferrite core, a wire coiled around a first portion of the ferrite core, and a fluid tube coiled around a second portion of the ferrite core. A wire coil can be contained in a cartridge system removably coupleable to a disposable vapor delivery device. The system can include a fluid flow controller and induction power regulation to maintain a specific operating pressure range for vapor within a uterus or other bodily cavity, tract, or duct.