A stationary induction apparatus includes a plurality of stationary device structures, each including: a stationary induction device including a core that has a plurality of magnetic legs and yokes connecting both ends of the plurality of magnetic legs, and windings that are respectively wound around the plurality of magnetic legs of the core; and a pair of yoke supports that respectively extend along the yokes on both ends of the stationary induction device and individually support the respective yokes; and a pair of connecting support members to which both ends of the pairs of yoke supports are respectively fixed such that the plurality of stationary device structures are arranged parallel to one another to form airflow paths between the respective stationary induction device that are disposed adjacent to each other.

A power conversion device such that heat dissipation of an electromagnetic induction instrument can be increased, and inductance value durability and vibration resistance of the electromagnetic induction instrument is high, is provided. Also, a power conversion device reduced in size and weight is provided. A power conversion device includes an electromagnetic induction instrument wherein an upper core and a lower core having magnetism are electromagnetically coupled across a coil body, a frame body on which the electromagnetic induction instrument is mounted, a potting resin member with which a space between the frame body and the electromagnetic induction instrument is filled, and a fixing member, disposed above the electromagnetic induction instrument so as to cover the upper core, of which an end portion is attached to the frame body, wherein the electromagnetic induction instrument is fixed to the frame body by the fixing member.

The invention comprises an apparatus, comprising: an inductor, comprising: an inductor core and a winding comprising a wound shape around the inductor core, where the winding comprises a first cross-sectional area at a first longitudinal position along the winding and a second cross-sectional area at a second longitudinal position along the winding, the second cross-sectional area at least twenty percent larger than the first cross-sectional area. Optionally and preferably, the winding includes a first set of cast elements sharing a first geometric shape and a second set of cast elements sharing a second geometric shape, where the alternating members of the first set of cast elements and the second set of cast elements are welded together to form the winding.

The present invention rates to a closed magnetic circuit for guiding a magnetic flux having a magnetic core with a first core member and a second core member, wherein the first core member being configured with an opening and a portion of the second core member is accommodated in the opening such that a gap for increasing the reluctance of the closed magnetic circuit is provided and encircles the portion of the core member. The present invention further relates to a magnetic component having the closed magnetic circuit and a carrier for holding the closed magnetic circuit and securing the gap. The present invention also relates to a method for manufacturing a magnetic component.

A device includes a substrate; a magnetic core in the substrate and including a hole; a first winding extending through the hole and around the magnetic core; and a second winding extending through the hole, around the magnetic core, and around a portion of the first winding. The first and the second windings only extend around the same half of the magnetic core.

The present application provides a bracket for holding an inductor, which inductor comprises a toroidal magnetic core including a first axis and a coil including a plurality of wires wound onto the toroidal magnetic core. The bracket comprises a base, a top cover and a coupling means. The base includes a lower base plate and fastening parts, the lower base plate has lower venting passage, and the lower base plate is configurable to attach to an installation surface extending perpendicular to the first axis via the fastening part and fastening means. The top cover includes an upper base plate. At least one upper venting passage is axially opened through the upper base plate. The top cover can be connected to the base by means of the coupling means such that the upper base plat is arranged coaxially with respect to the lower base plate. The axial spacing between the upper base plate and the lower base plate is designed to accommodate the inductor within a space surrounded by the upper base plate, the lower base plate and the coupling means. The bracket with the above configurations could attach the inductor to the installation surface perpendicular to the first axis L.

The invention comprises a method and apparatus for processing power, comprising the steps of: generating/using 3-phase power; feeding an AC drive with the 3-phase power, the AC drive generating a first output; and transforming the first output with a zigzag transformer, the zigzag transformer linked to at least one load output/load connector. The method and apparatus comprises an optional filter for filtering the 3-phase power prior to the step of transforming, the filter including a distributed gap core material.

A coil device includes a bobbin, a main core, and wires. A connection portion located between a first bobbin flange portion and a second bobbin flange portion includes a raised portion protruding along a direction perpendicular to a first axis more than the connection portion located between a first terminal block and a first bobbin flange portion. Communication wire portions connecting first wires of a proximal first coil and first wires of a distal first coil are arranged in a wiring space formed between second wires wound in contact with an upper end of the raised portion and an outer surface of the winding core portion or the bobbin.

A reactor including a magnetic core and a coil having a wound part, the magnetic core having an inner core part disposed inside the wound part and an outer core part disposed outside the wound part, is provided with a bolt coupling the inner core part and the outer core part, the bolt being constituted by a composite material formed by dispersing a soft magnetic powder in a resin and including a shaft part passing through the outer core part, the shaft part including a tip reaching the inner core part, and the inner core part and the outer core part respectively being an integrated member having an undivided structure.

An apparatus comprises: first windings, second windings, a magnetic core, and multiple tap nodes. The first windings are primary windings of a multi-tapped autotransformer. The second windings are secondary windings of the multi-tapped autotransformer. The first windings and the second windings are wrapped around the magnetic core, the second windings disposed in a series connection between the first windings. The multiple tap nodes providing coupling of the first windings and the second windings to a power supply circuit such as a switched-capacitor converter.