Abstract: A coil component includes a first alignment winding region in which a second wire is continuously wound so as to have turns such that the turns of the second wire are aligned with turns of a first wire having the same ordinal number outside the first wire in a direction perpendicular to a central axis. The ordinal number is counted from the turn nearest to the first flange portion.

Abstract: A drum core includes a core portion that extends in an axial direction, first and second flange portions respectively disposed at first and second ends of the core portion in the axial direction, and first and second terminal electrodes respectively disposed at the first and second flange portions. The first flange portion includes a bottom surface that is substantially parallel to the axial direction and on which the first terminal electrode is disposed, an outer end surface that is substantially perpendicular to the axial direction and that faces outward away from the core portion, and a first ridge portion and a second ridge portion respectively disposed at a first end and a second end of the outer end surface in a width direction substantially parallel to the bottom surface and the outer end surface, and the first ridge portion and the second ridge portion have different shapes.

Abstract: A transformer includes a primary coil unit including a primary winding, a first insulating portion and a shielding layer, wherein the first insulating portion wraps the primary winding, the shielding layer covers an outer surface of the first insulating portion, the shielding layer includes an opening, and a part of the first insulating portion is exposed at the opening; an outgoing wire terminal in the opening and having a first portion and a second portion connected with each other, the first portion coupled to the primary winding and wrapped by the first insulating portion, the second portion being exposed out of the first insulating portion; a connecting wire having a first end connected to the second portion of the outgoing wire terminal; and an insulating sleeve partially wrapping the connecting wire, and a second end of the connecting wire being exposed out of the insulating sleeve, (FIG. 17).

Abstract: A magnetic element. In some embodiments, the magnetic element includes a first electrically conductive coil, having a first annular surface and a second annular surface; a second electrically conductive coil, having a first annular surface and a second annular surface; and a spacer between the first electrically conductive coil and the second electrically conductive coil; a fluid inlet; and a fluid outlet. The spacer may have a first face, the first face being separated from the first annular surface of the first electrically conductive coil by a first gap; and a fluid path may extend from the fluid inlet to the fluid outlet through the first gap.

Abstract: A multilayer inductor component includes an element body that is an insulator and a coil in which a plurality of coil conductor layers that extend along planes in the element body are electrically connected to each other. Also, each of the coil conductor layers includes metal part and glass part, and the glass part include internal glass portion that is entirely included in the metal part.

Abstract: A common mode choke coil includes a core, and first and second coils opposed to each other and wound on the core. The core can have a square shape, or an elongated shape having a long axis and a short axis when viewed in a direction along a central axis of the core. Each of the first and second coils is a single-layer coil. An area of a cross-section of the core taken perpendicular to a circumferential direction of the core is constant in the circumferential direction of the core. The cross-section of the core has a quadrilateral shape.

Abstract: A reactor includes a coil, a magnetic core having an inner core portion inside a winding portion, and an inner interposed member insulating the winding portion from the inner core portion. The inner interposed member includes a thin portion with a small thickness formed by a recess, and a thick portion with a thickness larger than that of the thin portion. The inner core portion includes a core-side projecting portion with a shape conforming to a shape of the inner peripheral face of the thin portion. The thickness of the thin portion is 0.2 mm or more and 1.0 mm or less, and the thickness of the thick portion is 1.1 mm or more and 2.5 mm or less. Clearances are in part of a portion between the inner core portion and the inner interposed member and of a portion between the inner interposed member and the winding portion.

Abstract: A reactor includes a coil, a magnetic core having an inner core portion arranged inside a winding portion, and an inner interposed member insulating the winding portion from the inner core portion. The inner interposed member includes a thin portion with a small thickness, and a thick portion with a thickness larger than that of the thin portion. The inner core portion includes, on an outer peripheral face facing the inner interposed member, a core-side projecting portion with a shape conforming to a shape of the inner peripheral face of the thin portion. The thickness of the thin portion is 0.2 mm or more and 1.0 mm or less, and the thickness of the thick portion is 1.1 mm or more and 2.5 mm or less. There is a clearance in at least part of a portion between the inner interposed member and the winding portion.

Abstract: The magnetic poser unit (100) comprises a magnetic core (10) including a first, a second and a third winding channels (2a, 2b, 2c) respectively arranged around a first, a second and a third crossing axis (A-A, B-B, C-C) orthogonal to each other, each of said winding channels (2a, 2b, 2c) being intended for receiving one coil wound around the magnetic core (10), each coil having at least one turn. The crossing axis (A-A, B-B, C-C) define orthogonal planes providing eight octants, each including a protrusion defining a protruding spacer (20), being spaced to each other by said winding channels (2a, 2b, 2c). The magnetic core (10) is a composed core formed by several different partial magnetic cores assembled together including two side partial magnetic cores (12), each including four protruding spacers (20). The magnetic core (10) further includes a through hole (30) housing a device for heat dissipation (50).

Abstract: Provided is a coil component that includes a coil part having a planar coil that includes a winding section and an insulating section covering the winding section, and a magnetic resin layer including a magnetic filler and configured to cover the coil part. The magnetic resin layer has a first magnetic resin layer that is in contact with the coil part and a second magnetic resin layer that is laminated on the first magnetic resin layer. The second magnetic resin layer constitutes a principal surface of the magnetic resin layer, and a maximum particle size of the magnetic filler contained in the second magnetic resin layer is larger than that of the magnetic filler contained in the first magnetic resin layer.

Abstract: A coil component includes: a body including a magnetic material, coil pattern layers disposed in the magnetic material, a core portion surrounded by the coil pattern layers, and an insulating layer disposed in the core portion and between adjacent coil pattern layers among the coil pattern layers, wherein each of the coil pattern layers comprises a spiral-shaped pattern; and an external electrode disposed on the body.

Abstract: An adapter is provided and having a circuit board, primary components and secondary components installed on the circuit board, a shielding plate disposed between the primary components and the secondary components, and a transformer installed on the circuit board. The transformer has a bobbin, an iron core set assembled with the bobbin, at least one movable pin, at least one first winding, and at least one second winding. The movable pin is able to be positioned at an upper position for allowing the iron core set to be assembled with the bobbin or for allowing the first winding and the second winding to be wound onto the winding portion, and the movable pin is able to be positioned at a lower position when the transformer is installed onto the circuit board. Thereby, the adapter can be assembled in an automated process with improved assembly efficiency and high production yields.

Abstract: An ignition coil, including: a center core; a primary coil wound around the center core; a secondary coil wound around the primary coil; a side core, which is arranged around the secondary coil, and is coupled to the center core to from a closed magnetic path; a case configured to accommodate the center core, the primary coil, the secondary coil, and the side core; and an insulating resin filled in the case, wherein the side core includes a wide portion having a larger width in a direction from the center core to the side core, and a narrow portion having a smaller width than the wide portion, and wherein the narrow portion is formed on a high-voltage side of the side core.

Abstract: Embodiments are directed to a method of forming a magnetic stack arrangement of a laminated magnetic inductor having a high frequency peak quality factor (Q). A first magnetic stack is formed having one or more magnetic layers alternating with one or more insulating layers in a first inner region of a laminated magnetic inductor. A second magnetic stack is formed opposite a surface of the first magnetic stack in an outer region of the laminated magnetic inductor. A third magnetic stack is formed opposite a surface of the second magnetic stack in a second inner region of the laminated magnetic inductor. The insulating layers are formed such that a thickness of an insulating layer in the second magnetic stack is greater than a thickness of an insulating layer in the first magnetic stack.

Abstract: Provided is a power inductor. The power inductor includes a body including metal powder and an insulation material, at least one base provided in the body, at least one coil pattern disposed on at least one surface of the base, and an external electrode disposed on each of at least two side surfaces of the body. At least a portion of the external electrode is made of the same material as the coil pattern.

Abstract: A resonance damping element for a power converter having a positive busbar and a negative busbar, wherein the resonance damping element comprises a magnetic core formed with two openings through which the positive busbar and the negative busbar of the power converter are to be routed, respectively.

Abstract: A coupled inductor has two pillars that are aligned in a vertical direction, wherein a first coil and a second coil are respectively wound around one of the two pillars, respectively, wherein the bottom surface of winding turns of the first coil and the bottom surface of winding turns of the second coil are separated by a gap, wherein a magnetic material is disposed in the gap and a straight line that is enclosed by each of the first coil and the second coil passes through the two pillars.

Abstract: Two through-holes (7a) are formed in a portion of a second cover (7), the portion facing a second core (9) and a secondary coil (5). Heat radiation members (11) are provided in the through-holes (7a). The heat generated by the secondary coil (5) is radiated to the second core (9) via the heat radiation members (11).

Abstract: 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.

Abstract: To achieve the foregoing object, a tubular linear motor of the present invention includes a core that has a tubular yoke and a plurality of teeth which are annular and provided at intervals in an axial direction on an outer periphery of the yoke; a winding mounted in a slot between the teeth; and a field magnet that is tubular, into which the core is movably inserted in the axial direction, and having N poles and S poles alternately arranged in the axial direction. An axial width Wi of a yoke-side inner peripheral edge of the teeth is larger than an axial width of an outer peripheral edge of the teeth.